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eRAN

Adaptive ICIC Feature Parameter

Description

Issue 02

Date 2015-04-30

HUAWEI TECHNOLOGIES CO., LTD.



Copyright © Huawei Technologies Co., Ltd. 2015. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior written

consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective

holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the

customer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,

and recommendations in this document are provided "AS IS" without warranties, guarantees or

representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

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Website: http://www.huawei.com

Email: [email protected]

Issue 02 (2015-04-30) Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

i

http://www.huawei.com/



Contents

1 About This Document.................................................................................................................. 1

1.1 Scope.............................................................................................................................................................................. 1

1.2 Intended Audience..........................................................................................................................................................1

1.3 Change History...............................................................................................................................................................1

2 Overview......................................................................................................................................... 4

2.1 Introduction.................................................................................................................................................................... 4

2.2 Benefits...........................................................................................................................................................................4

2.3 Architecture.................................................................................................................................................................... 5

3 Technical Description...................................................................................................................7

3.1 Concepts......................................................................................................................................................................... 7

3.1.1 CCUs and CEUs.......................................................................................................................................................... 7

3.1.2 Policies of Scheduling CCUs and CEUs..................................................................................................................... 7

3.1.3 ICIC Working Modes.................................................................................................................................................. 83.2 Principles...................................................................................................................................................................... 10

3.2.1 Activating Adaptive ICIC..........................................................................................................................................11

3.2.2 Identifying Areas with High Interference..................................................................................................................12

3.2.3 Configuring and Optimizing ICIC Working Modes and Edge Band Modes.............................................................12

4 Related Features...........................................................................................................................14

5 Network Impact........................................................................................................................... 16

6 Engineering Guidelines............................................................................................................. 17

6.1 When to Use Adaptive ICIC.........................................................................................................................................176.2 Required Information................................................................................................................................................... 17

6.3 Planning........................................................................................................................................................................20

6.4 Deployment.................................................................................................................................................................. 21

6.4.1 Process.......................................................................................................................................................................21

6.4.2 Requirements.............................................................................................................................................................21

6.4.3 Data Pre paration........................................................................................................................................................ 23

6.4.4 Precautions.................................................................................................................................................................38

6.4.5 Initial Configuration.................................................................................................................................................. 38

6.4.6 Activation Observation..............................................................................................................................................42

6.4.7 Reconfiguration......................................................................................................................................................... 45

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6.4.8 Deactivation...............................................................................................................................................................45

6.5 Performance Monitoring...............................................................................................................................................46

6.6 Parameter Optimization................................................................................................................................................47

6.6.1 eCoordinator Parameters........................................................................................................................................... 48

6.6.2 eNodeB Parameters................................................................................................................................................... 48

6.7 Troubleshooting............................................................................................................................................................49

7 Parameters.....................................................................................................................................50

8 Counters........................................................................................................................................ 69

9 Glossary.........................................................................................................................................77

10 Reference Documents...............................................................................................................78

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1 About This Document

1.1 Scope

This document describes LOFD-060201 Adaptive Inter-Cell Interference Coordination,

including its technical principles, related features, network impact, and engineering

guidelines.

This document applies to the following types of eNodeBs.

eNodeB Type Model

Macro 3900 series eNodeB

Any managed objects (MOs), parameters, alarms, or counters described herein correspond to

the software release delivered with this document. Any future updates will be described in the

product documentation delivered with future software releases.

This document applies only to LTE FDD. Any "LTE" in this document refers to LTE FDD,

and "eNodeB" refers to LTE FDD eNodeB.

1.2 Intended Audience

This document is intended for personnel who:

l Need to understand the features described herein

l Work with Huawei products

1.3 Change History

This section provides information about the changes in different document versions. There are

two types of changes:

l Feature change

Changes in features and parameters of a specified version as well as the affected entities

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l Editorial change

Changes in wording or addition of information and any related parameters affected by

editorial changes. Editorial change does not specify the affected entities.

eRAN8.1 02 (2015-04-30)

This issue includes the following changes.

ChangeType

ChangeDescription

Parameter Change

Feature

change

None None

Editorial

change

Revised descriptions

in this document.

lAdded 3.1.1CCUs and

CEUs.

l Optimized 3.2

Principles.

l Optimized 3.2

Principles.

Added related parameters on the eCoordinator and

eNodeB. For details, see 6.4.3 Data Preparation.

eRAN8.1 01 (2015-03-23)

This issue does not include any changes.

eRAN8.1 Draft A (2015-01-15)

Compared with Issue 01 (2014-04-26) of eRAN7.0, Draft A (2014-01-15) of eRAN8.1

includes the following changes.

ChangeType

ChangeDescription

Parameter Change

Feature

change

Deleted the

inventory-basedmode.

l Deleted the ADD OPTIZONE command and related

parameters.l Deleted the ADD OPTIOBJ command and related

parameters.

l Deleted the ADD AICICOPTIPARA command and

related parameters.

l Deleted the ADD OPTIFEATURE command and

related parameters.

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ChangeType

ChangeDescription

Parameter Change

Added the

function of

querying the

feature running

status after the

adaptive ICIC

feature is

activated for the

eCoordinator.

None

Added

performance

counters. For

details, see 6.5

Performance

Monitoring.

None

Editorial

change

None None

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2 Overview

2.1 Introduction

Inter-cell interference coordination (ICIC) works with scheduling and power control to

mitigate inter-cell interference. ICIC divides a cell band into an edge band and a center band.

It also classified users into cell edge users (CEUs) and cell center users (CCUs). With ICIC,

the eNodeB schedules CCUs and CEUs on different cell bands and allocates different power

to CCUs and CEUs.

Huawei eNodeB supports static ICIC, dynamic ICIC, and adaptive ICIC. For details about

static ICIC and dynamic ICIC, see ICIC Feature Parameter Description.

With the eCoordinator for centralized management and eNodeBs for distributed control,adaptive ICIC automatically adjusts cell edge band modes and UE band scheduling policies

based on automatically collected and processed data about inter-cell interference and cell edge

load. Adaptive ICIC implements soft frequency reuse to effectively control inter-cell

interference.

Adaptive ICIC takes effect at the cell level and applies to all types of operators in multi-

operator core network (MOCN) and RAN sharing scenarios.

The differences between adaptive ICIC and static and dynamic ICIC are as follows:

l Static ICIC and dynamic ICIC require manual configurations of ICIC switches. Fixed

manual configurations cannot adapt to changes in UE type (CCU or CEU) distribution

and cell load.

l Adaptive ICIC determines whether to enable ICIC in an area based on inter-cell

interference and cell load. In addition, adaptive ICIC automatically configures cell edge

band modes and optimizes ICIC working modes and cell edge band modes based on load

changes.

2.2 Benefits

Adaptive ICIC offers the following benefits:

l

Applies to cells with the same frequency and bandwidth, reduces intra-frequencyinterference for CEUs, and increases CEU throughput.

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l Automatically implements ICIC, reduces operator workload for ICIC configuration, and

lowers operating expense (OPEX).

2.3 ArchitectureFigure 2-1 shows the architecture for adaptive ICIC.

Figure 2-1 Architecture for adaptive ICIC

In Figure 2-1:

l The blue, purple, and yellow areas indicate different cells served by the same eNodeB.

l The black lines illustrate the connections between the eNodeBs and the M2000 before

adaptive ICIC is enabled.l The red lines illustrate the connections between the eCoordinator and the eNodeB or

U2000 after adaptive ICIC is enabled.

NOTE

The interface between the eNodeB and the eCoordinator is the Se interface.

Table 2-1 describes the functions of each component in the network architecture.

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Table 2-1 Functions of the components in the architecture for adaptive ICIC

NE Technical Description

UE Measures and reports the RSRP of serving and neighboring cells.

eNodeB Provides cell information, including inter-cell interference and cell edge

loads, for the eCoordinator. Updates the ICIC working mode and edge

band mode according to the configurations delivered from the

eCoordinator.

eCoordinator The eCoordinator configures the ICIC working mode and band division

scheme based on the cell information provided by the eNodeB and then

delivers the configuration information to the eNodeB. Specifically, the

eCoordinator:

l Maintains network-level interference and cell edge load information.

l Implements the optimization algorithm of adaptive ICIC. Performs the

adaptive ICIC optimization algorithm based on the network-levelinterference data and cell edge load and generates configuration

suggestions on ICIC working modes and band division schemes.

l Delivers configuration suggestions to the eNodeB, based on which the

eNodeB optimizes configurations of the ICIC working mode and band

division schemes.

l Supports the function of querying the running status after adaptive

ICIC is activated for the eCoordinator.

NOTE

Huawei eCoordinator serves as a coordinator in a radio network and provides the

platform for implementing adaptive ICIC.

U2000 Displays the status of adaptive ICIC. Users can activate or deactivate this

feature on the U2000.

LMT Displays the status of adaptive ICIC. You can activate or deactivate this

feature on the eCoordinator LMT (LMT for short hereinafter).

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3 Technical Description

3.1 Concepts

3.1.1 CCUs and CEUs

Same as static ICIC and dynamic ICIC, CEUs and CCUs are also defined for adaptive ICIC.

For details about how to identify CEUs and CCUs, see ICIC Feature Parameter Description.

The user attribute (CEU or CCU) of a UE is initially recognized after the UE accesses the

network:

l The user attribute of an initially accessed or reestablished UE is recognized as CCU.

l The user attribute of a newly handed over UE is recognized as CEU.

After a period following the initial access or handover, eNodeBs use event A3 or A6 for

adaptive ICIC to determine whether UEs are CEUs or CCUs. In non-carrier aggregation (CA)

scenarios, eNodeBs only use event A3 for the determination. In CA scenarios, eNodeBs use

event A3 for determination on the primary component carrier (PCC) and use event A6 on the

secondary component carrier (SCC).

eNodeBs identify CEUs and CCUs based on ICIC event A3 or A6 as follows:

l If a UE reports ICIC event A3 or A6 and the event contains the measurement results of

at least one neighboring cell of the serving cell, eNodeBs calculate the G factor of the

UE based on the RSRP of the serving cell and its neighboring cell contained in event A3or A6. If the G factor is less than the sum of the values of

CELLDLICIC. DlIcicUserAttrGfactorThd and AICIC.UajGFactorHyst, eNodeBs

identify the UE as a CEU. Otherwise, eNodeBs identify the UE as a CCU.

l If eNodeBs have configured ICIC event A3 or A6 for a UE but the UE does not meet the

trigger conditions of the event, the UE cannot report RSRP of the serving cells and its

neighboring cell and other information to eNodeBs. eNodeBs recognize this UE as a

CCU.

For details about events A3 and A6, see ICIC Feature Parameter Description.

3.1.2 Policies of Scheduling CCUs and CEUs

CCUs and CEUs are scheduled as follows:

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l Band allocation

– eNodeBs preferentially schedule CCUs on the center band. If there are remaining

resources on the center band, eNodeBs can also schedule CEUs on the center band.

– eNodeBs preferentially schedule CEUs on the edge band. If there are remaining

resources on the edge band or CCUs have a higher scheduling priority on the edge band than CEUs, eNodeBs can also schedule CCUs on the edge band.

l Power allocation

eNodeBs allocate higher power to CEUs and lower power to CCUs.

3.1.3 ICIC Working Modes

Adaptive ICIC can work in three modes: Reuse1, Reuse3, and Reuse6. The division of a cell

band into center and edge bands varies according to the ICIC working mode. If the cell

bandwidth changes, adaptive ICIC adjusts the ICIC working mode in the next period.

Reuse1In Reuse1 mode, the cell band is not divided into center and edge bands. UEs are not

classified into CCUs and CEUs, and all UEs share the cell band. In the downlink, all UEs use

the same power to receive signals. In the uplink, the transmit power of each UE is determined

by the uplink power control algorithm. For details about power control, see Power Control

Feature Parameter Description.

All cells initially work in Reuse1 mode. The following cells can only work in Reuse1 mode:

l Neighboring cells with the same frequency but different bandwidths

l Neighboring cells with the same bandwidth but different frequencies

l Cells each with a bandwidth of 1.4 MHz or 3 MHz

Reuse3

The Reuse3 mode is classified into Type-1 and Type-2, which are selected based on the cell

load.

In Type-1 Reuse3 mode, a third of the cell band is configured as the edge band, and the

remainder of the cell band is configured as the center band. Figure 3-1 shows the Type-1

Reuse3 mode, where the edge bands of different cells do not overlap with each other.

Figure 3-1 Type-1 Reuse3 mode

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There are three edge band modes in Reuse3 (type 1) mode: Pattern 3-1, Pattern 3-2, and

Pattern 3-3. The three modes correspond to low, medium, and high sub-bands, respectively. In

each mode, the edge band occupies a third of the cell band. For example, Pattern3-1 indicates

that a third of the low band of the system bandwidth used by the cell is used as the edge band.

In Type-2 Reuse3 mode (shown in Figure 3-2), the edge bands of different cells partially

overlap, allowing CEUs to use wider bands than Type-1 Reuse3 mode (shown in Figure 3-1).

Figure 3-2 Type-2 Reuse3 mode

There are also three edge band modes in Type-2 Reuse3 mode: Pattern3-1, Pattern3-2, and

Pattern3-3. Each pattern occupies two-thirds of the cell band. For example, if a cell uses

Pattern3-1, the lowest two-thirds of the cell band works as the edge band.

Corresponding to the two types of Reuse3 modes, the eCoordinator can work in two modes:

dynamic ICIC mode and static ICIC mode.

l In dynamic ICIC mode, the eCoordinator instructs cells to work in Type-1 Reuse3 mode.

It periodically performs self-configuration and self-optimization of the ICIC working

modes and edge band modes.

l In static ICIC mode, the eCoordinator instructs cells to work in Type-2 Reuse3 mode. It

periodically performs self-configuration of the ICIC working modes and edge band

modes but does not perform self-optimization.

Operators can manually configure the working mode of the eCoordinator.

Reuse6

In Reuse6 mode, a sixth of the cell band is configured as the edge band, and the remaining

five-sixths of the cell band are configured as the center band. Figure 3-3 shows the Reuse6

mode.

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Figure 3-3 Reuse6 mode

There are six edge band modes (Pattern6-1 to Pattern6-6) in Reuse6 mode. The six modes

correspond to six sub-bands in ascending order of frequency. In each mode, the edge band

occupies a sixth of the cell band. For example, if a cell uses Pattern6-6, the highest sixth of

the cell band works as the edge band. The Reuse6 mode applies only to dynamic ICIC.

The LTE system uses single carrier frequency division multiple access (SC-FDMA) in the

uplink. UEs can work only on continuous uplink bands. To prevent the uplink band from

being too fragmented, a cell cannot use the Reuse6 mode in the uplink. In addition, to ensuresufficient bandwidth of the edge band in the downlink, cells with a bandwidth of 1.4 MHz, 3

MHz, or 5 MHz cannot work in Reuse6 mode in the downlink.

3.2 Principles

After adaptive ICIC is activated, the eCoordinator configures and optimizes the ICIC working

modes and edge band modes based on inter-cell interference and cell load. Figure 3-4 shows

the working principles of adaptive ICIC.

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Figure 3-4 Working principles of adaptive ICIC

3.2.1 Activating Adaptive ICICYou can select all or some cells served by multiple eNodeBs as the area for which adaptive

ICIC is to be activated, and determine whether adaptive ICIC takes effect in the uplink,

downlink, or both.

Adaptive ICIC can be activated and deactivated using MML commands on the LMT. After

adaptive ICIC is activated, the eCoordinator identifies areas with high interference based on

the cell load and inter-cell interference. The eCoordinator then configures and optimizes the

ICIC working modes and edge band modes, based on the identification results.

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3.2.2 Identifying Areas with High Interference

In each optimization period, the eCoordinator identifies areas with high interference and

heavy loads based on cell load and inter-cell interference information reported by eNodeBs.

The eCoordinator configures and optimizes the ICIC working modes and edge band modes of cells, based on the identification results.

The RSRP values of the serving cell and neighboring cells reported by UEs are used to

determine whether an area has high interference. The following describes how to identify

areas with high interference:

1. UEs send ICIC A3/A6 measurement reports to the eNodeBs, each report containing the

RSRP values of the UEs' serving cell and neighboring cells. For details about the

description of events A3 and A6, see ICIC Feature Parameter Description.

2. The eNodeBs calculate unidirectional interference weights based on the reported RSRP

values, record them in cell-level intra-frequency neighboring relation tables (NRTs), and

periodically report the NRTs to the eCoordinator. Note that a unidirectional interferenceweight is the weight of the interference generated from one cell to another.

3. The eCoordinator generates a network-level NRT based on the cell-level intra-frequency

NRTs, calculates bidirectional interference weights based on unidirectional interference

weights, and identifies areas with high interference. Note that bidirectional interference

weights refer to the weights of the interference generated from cell A to cell B and from

cell B to cell A. An area experiences high interference if the average interference weight

of all cells in this area has reached a certain threshold.

The eNodeBs report cell load information to the eCoordinator, including the average physical

radio block (PRB) usage and the average number of to-be-scheduled UEs. The eCoordinator

identifies the load of an area with high interference based on the cell load information

reported from the eNodeBs. If both the percentage of cells whose average PRB usage isgreater than the value of the HighInterCellRbUsageThd parameter and the percentage of

cells whose average number of to-be-scheduled UEs is greater than the value of the

HighInterCellUserNumThd parameter are greater than 30% in this area, this area meets the

trigger conditions of adaptive ICIC.

3.2.3 Configuring and Optimizing ICIC Working Modes and EdgeBand Modes

Self-Configuration

The eCoordinator periodically evaluates the cell load and inter-cell interference, based on

which it configures the ICIC working modes and edge band modes.

l For cells in a non-high-interference area or high-interference area where load conditions

are not met, the eCoordinator sets the ICIC working mode to Reuse1.

l In static ICIC mode, for an area with high interference and whose load meets the

conditions, the eCoordinator sets the ICIC working mode to Type-2 Reuse3 mode and

configures the edge band mode for each cell.

l In dynamic ICIC mode, for an area with high interference and whose load meets the

conditions, the eCoordinator sets the ICIC working mode to Type-1 Reuse3 mode and

configures the edge band mode for each cell. If two cells have the same edge band mode,

the eCoordinator checks whether the bidirectional interference weights have reached acertain threshold. If yes, the eCoordinator changes the ICIC working modes of the two

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cells to Reuse6 and configures different edge band modes for the two cells. If no, the

ICIC working modes and edge band modes of the two cells remain unchanged.

Self-Optimization

Inter-cell interference changes with cell load and UE type distribution. Therefore, adaptive

ICIC periodically optimizes the ICIC working modes and edge band modes.

For cells in Reuse3 and Reuse6 modes, if the average PRB usage is less than or equal to the

value of AICIC.CellStatusJudgeRbUsageThd, the cells work in interference randomization

mode. In interference randomization mode, the actual ICIC working mode of cells is Reuse1.

However, the start point of the edge band delivered by the eCoordinator is used as the start

point for RB resource allocation.

If the PRB usage of the cells is greater than the value of

AICIC.CellStatusJudgeRbUsageThd in dynamic ICIC mode, the eCoordinator periodically

determines whether to reconfigure the cell edge band modes based on the average PRB usage

of CEUs at an interval of seconds.

l If the average number of PRBs used for CEUs in a cell is less than a sixth of the total

number of PRBs on the entire cell band, the eCoordinator sets the ICIC working mode of

the cell to Reuse6 and the cell shrinks its edge band.

l If the average number of PRBs used for CEUs in a cell is greater than a third of the total

number of PRBs on the entire cell band, the cell attempts to expand its edge band. If the

edge bands of neighboring cells are not actually shrunk, the cell fails to expand its edge

band and retains a fixed edge band that is a third of the entire cell band.

l If the average number of PRBs used for CEUs in a cell is greater than a sixth but less

than a third of the total number of PRBs on the entire cell band, the eCoordinator sets the

ICIC working mode of the cell to Reuse3.

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4 Related Features

Prerequisite Features

LOFD-060201 Adaptive Inter-Cell Interference Coordination requires the following features:

l LBFD-002025 Basic Scheduling

l LOFD-001015 Enhanced Scheduling

l LOFD-00101502 Dynamic Scheduling

l LBFD-002026 Uplink Power Control

l LBFD-002016 Dynamic Downlink Power Allocation

With features related to scheduling, eNodeBs schedule the CEUs of a cell (on the edge band

of this cell), thereby mitigating inter-cell interference in the frequency domain. With features

related to power control, eNodeBs allocate proper power resources to CCUs and CEUs,further reducing inter-cell interference.

Mutually Exclusive Features

Adaptive ICIC is mutually exclusive with the following features:

l LBFD-00202201 Downlink Static Inter-Cell Interference Coordination

l LOFD-00101401 Downlink Dynamic Inter-Cell Interference Coordination

l LBFD-00202202 Uplink Static Inter-Cell Interference Coordination

l LOFD-00101402 Uplink Dynamic Inter-Cell Interference Coordination

l LOFD-070205 Adaptive SFN/SDMAl LOFD-070208 Coordinated Scheduling based Power Control (Cloud BB)

In addition, uplink adaptive ICIC is mutually exclusive with LOFD-003029 SFN.

You can enable only one of adaptive ICIC, static ICIC, and dynamic ICIC for a cell. Adaptive

ICIC takes priority over dynamic ICIC and static ICIC.

l If static ICIC or dynamic ICIC is enabled on a network where adaptive ICIC has been

enabled, static ICIC or dynamic ICIC will not work.

l If adaptive ICIC is enabled on a network where static ICIC or dynamic ICIC has been

enabled, static ICIC or dynamic ICIC will be disabled, and the operations (such as switch

status and mode configurations) related to static ICIC and dynamic ICIC on the eNodeBdo not take effect any longer.

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Therefore, to enable dynamic ICIC or static ICIC on the eNodeB when adaptive ICIC

has been enabled, you need to disable adaptive ICIC first.

Impacted Features

Adaptive ICIC affects the following features:

l Uplink and downlink scheduling

– Adaptive ICIC provides edge band modes and UE types (CCU and CEU) for

scheduling.

– When adaptive ICIC is enabled, CEUs are preferentially scheduled on the edge

band and CCUs are preferentially scheduled on the center band.

– If uplink adaptive ICIC has been enabled and the

CellUlschAlgo.UlRbAllocationStrategy parameter (which indicates the uplink

resource allocation strategy) has been set to FS_INRANDOM_ADAPTIVE(Fs

InRandom Strategy), the parameter value is automatically changed to

FS_NONFS_ADAPTIVE(Fs nonFs Strategy) when the eNodeBs enter the ICIC

state.

l GSM/LTE DSS

When MRFD-090202 GSM and LTE FDD Dynamic Spectrum Sharing(LTE FDD) and

adaptive ICIC are enabled together, adaptive ICIC only classifies LTE-dedicated

spectrum modes and all spectrum shared by GSM and LTE are used as the center band.

l Power control

Adaptive ICIC provides UE type information for downlink power control. Downlink

power control allocates proper power resources to CCUs and CEUs based on the UE

types and the PA values configured for CCUs and CEUs. In Reuse1 mode, all UEs use

the same PA value. For details about the description and configuration of PA, see Power Control Feature Parameter Description.

l SFN

If multiple physical cells are combined into one single frequency network (SFN) cell

when downlink adaptive ICIC and SFN are both enabled, some edges of the physical

cells become part of the SFN cell center. The target cells for downlink adaptive ICIC

change from physical cells to SFN cells. If parameter configurations of other cells

remain unchanged, the proportion of downlink CEUs and the interference in the network

decrease. In this case, downlink adaptive ICIC achieves lower edge performance gain.

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5 Network Impact

System Capacity

Adaptive ICIC increases the throughput of CEUs by reducing inter-cell inter-CEU

interference.

Downlink adaptive ICIC reduces the average downlink cell throughput and average user

throughput because the downlink transmit power of CCUs is reduced. The throughput

decrease depends on the user distribution in the cell. Generally, the throughput does not

decrease by more than 5%.

Network Performance

Adaptive ICIC enhances network coverage by increasing the throughput of CEUs.

The initial block error rate (IBLER) and RBLER deteriorate slightly because downlink

adaptive ICIC reduces the downlink transmit power of CCUs. The deterioration depends on

the user distribution. Generally, the IBLER does not deteriorate by more than 2% and the

RBLER does not deteriorate by more than 0.03%.

Adaptive ICIC increases the number of signaling messages over the air interface because:

Adaptive ICIC requires that UEs detect and report the RSRP of neighboring cells to eNodeBs

in event A3 or A6 to distinguish between CEUs and CCUs in a cell. The eNodeBs send UEs

the RRC Connection Reconfiguration message, which contains the settings of the UE transmit

power.

NOTE

If the network experiences high interference and a heavy load, adaptive ICIC optimizes the ICIC

working modes and edge band modes. Otherwise, adaptive ICIC enables the areas to work in

interference randomization mode.

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6 Engineering Guidelines

6.1 When to Use Adaptive ICIC

It is good practice to activate adaptive ICIC when intra-frequency cells on an LTE network

experience intra-frequency interference. It is recommended that adaptive ICIC be activated on

a network with high interference. You can activate adaptive ICIC at any time because it does

not affect services. It is recommended that adaptive ICIC be activated on the full hour to

facilitate performance measurement.

Because downlink adaptive ICIC brings negative gains of the average downlink throughput, it

is recommended that downlink adaptive ICIC work with the frequency selection scheduling

mode and the policy of rounding up the number of required RBGs to achieve larger average

downlink throughput. In addition, it is recommended UlEnhancedFssSwitch,InterfRandSwitch , and UlEnhancedDopplerSwitch be selected so as to obtain uplink

performance gains.

The Reuse3 mode in static ICIC mode is recommended for the eCoordinator on a commercial

network.

6.2 Required Information

Before activating adaptive ICIC on an LTE network, collect site information such as inter-site

distance and counters related to network load and interference.

l Counters related to network load

– Numbers of uplink and downlink UEs in a cell

Counter ID Counter Name Counter Description

1526727378 L.Traffic.User.Avg Average number of users in a

cell

1526727379 L.Traffic.User.Max Maximum number of users in

a cell

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1526728445 L.Traffic.ActiveUser.UL.QCI.To

tal

Total number of activated

UEs with a standardized or

extended QCI in the uplink

buffer

1526728969 L.Traffic.ActiveUser.DL.Avg Average number of activated

UEs in downlink

1526728970 L.Traffic.ActiveUser.DL.Max Maximum number of

activated UEs in downlink

1526728972 L.Traffic.ActiveUser.UL.Avg Average number of activated

UEs in uplink

1526728973 L.Traffic.ActiveUser.UL.Max Maximum number of

activated UEs in uplink

1526728975 L.Traffic.ActiveUser.Avg Average number of activated

UEs

1526728976 L.Traffic.ActiveUser.Max Maximum number of

activated UEs

– Average numbers of used uplink and downlink PRBs


1526726737 L.ChMeas.PRB.UL.Used

.Avg

Average number of used

uplink PRBs

1526726740 L.ChMeas.PRB.DL.Used

.Avg

Average number of used

PDSCH PRBs

1526728479 L.ChMeas.PRB.UL.CEU

.Used.Avg

Average number of

PRBs used by uplink

CEUs in a cell

1526728480 L.ChMeas.PRB.DL.CEU

.Used.Avg

Average number of

PRBs used by downlink

CEUs in a cell

l Counters related to network interference

– Numbers of uplink and downlink CEUs in a cell


1526727380 L.Traffic.CEU.Avg Average number of

downlink CEUs in a cell

1526727381 L.Traffic.CEU.Max Maximum number of

downlink CEUs in a cell

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18




1526728473 L.Traffic.ULCEU.Avg Average number of

uplink CEUs in a cell

1526728474 L.Traffic.ULCEU.Max Maximum number of uplink CEUs in a cell

– Number of times MCS index N ( N = 0 to 31) is selected for PUSCH and PDSCH

scheduling


1526727412 to

1526727443

L.ChMeas.PUSCH.MCS.0 to

L.ChMeas.PUSCH.MCS.31

Number of times MCS

index N ( N = 0 to 31) is

scheduled on the PUSCH

1526727444 to

1526727475

L.ChMeas.PDSCH.MCS.0 to

L.ChMeas.PDSCH.MCS.31

Number of times MCS

index N ( N = 0 to 31) is

scheduled on the PDSCH

– Number of times the reported CQI of the whole frequency band is N ( N = 0 to 15)

in a cell


1526727396 to

1526727411

L.ChMeas.CQI.DL.0 to

L.ChMeas.CQI.DL.15

Number of wideband

CQI reports with the

value of N ( N = 0 to 15)

l Counters related to the average user rate in a cell

Average uplink and downlink user rates in a cell


1526728259 L.Thrp.bits.UL Total uplink traffic volume

for PDCP SDUs in a cell

1526728998 L.Thrp.Time.Cell.UL.High

Precision

Total duration of uplink

data transmission in a cell

(with the precision of 1

ms)

1526728260 L.Thrp.Time.UL Total receive duration of

uplink PDCP PDUs in a

cell

1526728261 L.Thrp.bits.DL Total downlink traffic

volume for PDCP SDUs in

a cell

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19




1526728997 L.Thrp.Time.Cell.DL.High

Precision

Total duration of downlink

data transmission in a cell

(with the precision of 1

ms)

1526728262 L.Thrp.Time.DL Total transmit duration of

downlink PDCP SDUs in a

cell

l Counters related to CEU rates

Rates of uplink and downlink CEUs in a cell


1526728475 L.Thrp.bits.UL.CEU Total bits of uplink PDCPPDUs received from CEUs

in a cell

1526728476 L.Thrp.Time.UL.CEU Total duration in which

uplink user data is

received from CEUs at the

PDCP layer in a cell

1526728477 L.Thrp.bits.DL.CEU Total bits of downlink

PDCP SDUs sent to CEUs

in a cell

1526728478 L.Thrp.Time.DL.CEU Total duration in which

downlink user data is sent

to CEUs at the PDCP layer

in a cell

NOTE

Counters for CEUs among the preceding performance counters can be obtained only after adaptive

ICIC is activated. Before adaptive ICIC is activated, you can obtain such counters using the

following method: Set DlIcicSwitch to DlIcicStaticSwitch_ON_ENUM and set BandMode of

cells to INVALID on the eNodeB.The related commands are as follows:

MOD ENODEBALGOSWITCH: DlIcicSwitch=DlIcicStaticSwitch_ON_ENUM;

MOD CELLDLICIC: LocalCellId=0, BandMode=INVALID;

6.3 Planning

RF Planning

None

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20



Network Planning

It is recommended that the neighboring cells in an optimization zone use the same frequency

and bandwidth. The cell bandwidth in an optimization zone must be greater than or equal to 5

MHz. If the neighboring cells use the same frequency but different bandwidths or use the

same bandwidth but different frequencies, adaptive ICIC does not take effect on the

neighboring cells and the neighboring cells only work in Reuse1 mode.

Hardware Planning

The eCoordinator and U2000 must be deployed.

6.4 Deployment

6.4.1 ProcessFigure 6-1 shows the process of deploying adaptive ICIC.

Figure 6-1 Process of deploying adaptive ICIC

6.4.2 Requirements

Hardware

The feature deployment requirements for hardware are as follows:

l eNodeBs are functioning properly. Adaptive ICIC applies only to macro cells in

eRAN6.0 or later, including:

– LTE macro cells served by single-mode base stations, which are DBS3900 LTE,

BTS3900 LTE, BTS3900A LTE, BTS3900L LTE, and BTS3900AL LTE.

– LTE macro cells served by multimode base stations, which are DBS3900,

BTS3900, BTS3900A, BTS3900L, and BTS3900AL.

l

The eCoordinator has been installed, initially configured, and commissioned. TheeCoordinator is functioning properly and has been connected to the eNodeBs.

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21



NOTE

For details about how to install, initially configure, and commission the eCoordinator, see ECO6910

Installation Guide, ECO6910 Initial Configuration Guide, and ECO6910 Commissioning Guide,

respectively.

System Configuration

The requirements for system configuration are as follows:

l Intra-frequency neighbor relationships have been configured between the cells to be

optimized by adaptive ICIC.

l SCTP links between eNodeBs and the eCoordinator have been configured on the

eNodeB side. For details about configuration, see 3900 Series Base Station Initial

Configuration Guide.

l The CellDlpcPdsch.CeuPa and CellDlpcPdsch.CcuPa parameters on the eNodeB are

associated with the CellDlpcPdschPa. PaPcOff parameter. For details about the

recommended values of CellDlpcPdsch.CeuPa and CellDlpcPdsch.CcuPa, see eNodeB Parameter Reference.

l SCTP links between eNodeBs and the eCoordinator as well as eNodeB information and

E-UTRAN cell information have been configured on the eCoordinator side. For details

about configuration, see ECO6910 Initial Configuration Guide of V100R004.

License

Operators have purchased and activated the following licenses on the eCoordinator side.

FeatureID

FeatureName

LicenseControl Item

NE Sales Unit

None ECO6910

Basic

Software-LTE

FDD

ECO6910 Basic

Software-LTE

FDD (per Cell)

ECO691

0

Per Cell

None Hardware

Capacity of

LTE FDD and

LTE TDD

Coordinated

Cell

Hardware

Capacity of LTE

FDD and LTE

TDD

Coordinated

Cell (per 50

Cell)

ECO691

0

Per 50 Cell

LOFD-06

0201

Adaptive Inter-

Cell

Interference

Coordination

Adaptive Inter-

Cell Interference

Coordination(LT

E FDD) (per

Cell)

ECO691

0

Per Cell

The Adaptive Inter-Cell Interference Coordination-LTE FDD (per Cell) license limits the total

number of LTE FDD cells that can be optimized by adaptive ICIC. If the number of selected

cells exceeds the licensed limit, the eCoordinator reports ALM-20741 Configuration DataExceeding License Capacity.

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22



6.4.3 Data Preparation

eCoordinator Data Preparation

The following parameters are required on the eCoordinator for configuring adaptive ICIC.

For details about LTE cell parameters, see Table 6-1.

Table 6-1 LTE cell parameters

ParameterName

ParameterID

DataSource

Setting Notes

NE Index Type QueryNeIdTy

pe

User-

defined

This parameter indicates the type of an

NE index.

eNodeB Index eNodeBIndex Network plan

(negotiation

not

required)

This parameter indicates the index of aneNodeB on the eCoordinator, which

uniquely identifies an eNodeB.

eNodeB Name eNodeBName Network

plan

(negotiation

not

required)

This parameter specifies the name of an

eNodeB. The eNodeB name must not

contain the comma (,), semicolon (;),

equal sign (=), double quotation marks

(") or single quotation mark ('), two or

more consecutive percent signs (%), two

or more consecutive spaces, or three or more consecutive plus signs (+). The

eNodeB name cannot consist of spaces

only.

LTE Cell Index LTECellInde

x

Network

plan

(negotiation

not

required)

This parameter specifies the index of an

LTE cell, which uniquely identifies an

LTE cell within the eCoordinator.

LTE Cell Name LTECellNam

e

Network

plan

(negotiation

not

required)

This parameter specifies the name of an

LTE cell. The cell name must not

contain the comma (,), semicolon (;),

equal sign (=), double quotation marks

(") or single quotation mark ('), two or

more consecutive percent signs (%), two

or more consecutive spaces, or three or

more consecutive plus signs (+). The

cell name cannot consist of spaces only.

Mobile

Country Code

MCC Network

plan

(negotiation

not

required)

This parameter specifies the mobile

country code (MCC) that identifies the

country to which a mobile user belongs.

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23



ParameterName

ParameterID

DataSource

Setting Notes

Mobile

Network Code

MNC Network

plan

(negotiation

not

required)


network code (MNC) that identifies the

public land mobile network (PLMN) to

which a mobile user belongs.

Cell ID CellId Network

plan

(negotiation

not

required)

This parameter specifies the ID of a cell,

which uniquely identifies a cell within

an eNodeB.

Cell FDD/TDD

Indication

FddTddInd Network

plan

(negotiationnot

required)

This parameter specifies whether an

LTE cell works in FDD or TDD mode.

For details about the parameter configurations for an optimization area where adaptive ICIC is

activated, see Table 6-2.

Table 6-2 Parameters for an optimization area where adaptive ICIC is activated

ParameterName

ParameterID

DataSource

Setting Notes

Area Identifier AreaId User-defined This parameter specifies the ID of an

area, which uniquely identifies an area

within the eCoordinator.

Area Name AreaName User-defined This parameter specifies the name of an

area, which uniquely identifies an area.

The area name must not contain the

comma (,), semicolon (;), equal sign (=),

double quotation marks (") or single

quotation mark ('), two or more

consecutive percent signs (%), two or more consecutive spaces, or three or

more consecutive plus signs (+). The

area name cannot consist of spaces only.

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24



ParameterName

ParameterID

DataSource

Setting Notes

Cell Type CellType Network

plan

(negotiation

not required)

This parameter specifies the type of cell

for which adaptive ICIC is to be

enabled. The values are FDD, TDD, and

BOTH. When this parameter is set to

FDD(FDD), this feature can be enabled

only for FDD cells. When this parameter

is set to TDD(TDD), this feature can be

enabled only for TDD cells. When this

parameter is set to BOTH(BOTH), this

feature can be enabled for both FDD and

TDD cells.

Running Type RunningType Network

plan

(negotiation

not required)

This parameter specifies the type of

running adaptive ICIC within an area.

The parameter values are as follows:

UL(UpLink): indicates that uplink

adaptive ICIC is running.

DL(DownLink): indicates that

downlink adaptive ICIC is running.

ULDL(UpLink/DownLink) : indicates

that both uplink adaptive ICIC and

downlink adaptive ICIC are running.

The recommended value is

DL(DownLink).

RunningPeriod RunningPeriod Network plan

(negotiation

not required)

This parameter specifies the period for calculating the cell edge band mode

within an area. The cell edge band mode

is calculated each time the calculation

period arrives.

The recommended value is HOUR_1(1

Hour).

Start Mode StartMode Network

plan

(negotiation

not required)

This parameter specifies the mode for

starting adaptive ICIC. If this parameter

is set to NOW(Now), adaptive ICIC

starts immediately. If this parameter is

set to DELAY(Delay), adaptive ICICstarts when the time specified by

StartTime arrives.

Start Time StartTime Network

plan

(negotiation

not required)

This parameter specifies the start time of

adaptive ICIC. This parameter takes

effect when the StartMode parameter is

set to DELAY(Delay).

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25



ParameterName

ParameterID

DataSource

Setting Notes

Running

Mode

RunningMode Network

plan

(negotiation

not required)

This parameter specifies the running

mode of adaptive ICIC. The bandwidth

at edge bands varies in different running

modes. If this parameter is set to

DYNAMIC_EDGE_BAND(DynamicE

dgeBand), the eCoordinator instructs

cells to work in Type-1 Reuse3 mode. If

this parameter is set to

STATIC_EDGE_BAND(StaticEdgeBa

nd), the eCoordinator instructs cells to

work in Type-2 Reuse3 mode.

The recommended value is

STATIC_EDGE_BAND(StaticEdgeBa

nd).

High

Interference

Cell

Threshold

HighInterCell

InterThd

Network

plan

(negotiation

not required)

This parameter specifies the interference

threshold of high-interference cells,

which is used to determine whether to

add a cell to a high-interference area.

When activating adaptive ICIC, adjust

this parameter to specify the area in

which adaptive ICIC takes effect. A

smaller value results in a large

application area, and a larger value

results in a smaller application area.

The recommended value is 100.

Average

Interference

Threshold of

ICIC Area

ICICAreaAvg

InterThd

Network

plan

(negotiation

not required)

This parameter specifies the average

interference threshold of an adaptive

ICIC area. The threshold is used to

determine whether to combine two areas

into one high-interference area. When

activating adaptive ICIC, adjust this

parameter to specify the actual

application area. A smaller value results

in a large application area, and a larger

value results in a smaller application

area.


RB Usage

Threshold for

High

Interference

Cell

HighInterCell

RbUsageThd

Network

plan

(negotiation

not required)

This parameter specifies the threshold of

RB usage for cells with high

interference. A smaller value results in a

higher probability that ICIC areas are

generated. A larger value results in the

opposite effects.


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26



ParameterName

ParameterID

DataSource

Setting Notes

UE Number

Threshold for

High

Interference

Cell

HighInterCell

UserNumThd

Network

plan

(negotiation

not required)

This parameter specifies the number

threshold of UEs in cells with high

interference. A smaller value results in a

higher probability that ICIC areas are

generated. A larger value results in the

opposite effects.


Area Divide

and Identify

Switch

RegionIdentif

ySwitch

Network

plan

(negotiation

not required)

This parameter specifies the switch for

area division and identification. When

this parameter is set to ON(On), areas

with high interference and heavy loads

are identified and ICIC takes effect only

in these areas. When this parameter isset to OFF(Off), no actions are

performed to identify areas with high

interference and heavy loads and ICIC

takes effect in the entire optimization

area.

User Attr

Judge Mode

UeAttribJudg

eMode

Network

plan

(negotiation

not required)

This parameter specifies the mode for

judging user attributes. If this parameter

is set to BasedFreEff(Base on

frequency efficiency), the eNodeB

judges user attributes based on spectral

efficiency. If this parameter is set toBasedGFactor(Base on G factor), the

eNodeB judges user attributes based on

the G factor.

User Attr

Judge Spectral

Efficiency

Thld

UeAttribJudg

eFreEffThd

Network

plan

(negotiation

not required)

This parameter specifies the spectral

efficiency threshold for judging user

attributes. If UeAttribJudgeMode is set

to BasedFreEff(Base on frequency

efficiency), the eNodeB selects CEUs

whose spectral efficiency is less than

this threshold.

User Attr Judge Spectral

Efficiency

Thld Hyst

UeAttribJudg eFreEffHyst

Network plan

(negotiation

not required)

This parameter specifies the spectralefficiency hysteresis for judging user

attributes. If UeAttribJudgeMode is set

to BasedFreEff(Base on frequency

efficiency), this parameter helps

alleviate the user attribute fluctuation

arising from the spectral efficiency

fluctuation.

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ParameterName

ParameterID

DataSource

Setting Notes

Cell State

Judge RB

Usage

Threshold

CellStatusJud

geRbUsageTh

d

Network

plan

(negotiation

not required)

This parameter specifies the RB usage

threshold for judging the cell status. The

eNodeB periodically calculates the

average RB usage of each cell. If the

average RB usage is less than or equal to

this threshold, the eNodeB sets the cell

working mode to Reuse1 and allocates

resources according to the start position

of the cell edge band delivered from the

eCoordinator.


Cell State

Judge RBUsage

Threshold

Hyst

CellStatusJud

geRbUsageHyst

Network

plan(negotiation

not required)

This parameter specifies the RB usage

threshold hysteresis for judging the cellstatus. If the average RB usage of a cell

fluctuates around the value specified by

CellStatusJudgeRbUsageThd, this

parameter helps alleviate the cell status

fluctuation arising from the average RB

usage fluctuation.

UE Attribute-

based G

Factor

Optimize

Switch

UajGFactorO

ptSwitch

Network

plan

(negotiation

not required)

This parameter specifies whether to

enable UE attribute-based G factor

optimization. When this parameter is set

to OFF(Off), the UE attribute-based G

factor optimization solution does nottake effect on the eNodeB. When this

parameter is set to ON(On), the UE

attribute-based G factor optimization

solution takes effect on the eNodeB.

UE Attribute-

based G

Factor Thld

Hysteresis

UajGFactorH

yst

Network

plan

(negotiation

not required)

This parameter specifies the hysteresis

of the G factor threshold on the eNodeB.

If the G factor of a cell edge user (CEU)

is less than the sum of the G factor

threshold and the value of this

parameter, the user is considered as a

CEU to be scheduled. If the G factor of a

cell center user (CCU) is less than the

difference between the G factor



CEU to be scheduled.

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ParameterName

ParameterID

DataSource

Setting Notes

UE Attribute-

based G

Factor Thld

Offset

UajGFactorO

ffset

Network

plan

(negotiation

not required)

This parameter specifies the offset to the

G factor threshold on the eNodeB. When

a user is allocated a G factor and the G

factor value is less than or equal to the

difference between the G factor



CEU to be scheduled.

UE Attribute-

based CQI

Threshold

UajAdjustedW

bCqiThd

Network

plan

(negotiation

not required)

This parameter specifies the full-band

CQI threshold on the eNodeB. This

parameter is used to determine the

attribute (CEU or CCU) of a user that

does not report event A3.

UE Attribute-

based CQI

Threshold

Hysteresis

UajAdjustedW

bCqiHyst

Network

plan

(negotiation

not required)

This parameter specifies the hysteresis

of the full-band CQI threshold on the

eNodeB. If the full-band CQI value of a

CEU after the user attribute is adjusted is

less than the sum of the values of

UajAdjustedWbCqiThd and this


CEU to be scheduled. If the full-band

CQI value of a CCU after the user

attribute is adjusted is less than the

difference between

UajAdjustedWbCqiThd and this parameter, the CCU switches to the CEU

to be scheduled.

RSRP

Filtering Type

RSRPFilterTy

pe

Network

plan

(negotiation

not required)

This parameter specifies the RSRP

filtering type of users who report event

A3. If this parameter is set to

Adaptive(Adaptive), the eNodeB

adaptively calculates the filtering

coefficient for each user. If this

parameter is set to Fixed(Fixed), the

eNodeB filters user-reported RSRP

values based on the value of theRSRPFilterCoefficient parameter.

RSRP

Filtering

Coefficient

RSRPFilterCo

efficient

Network

plan

(negotiation

not required)

This parameter specifies the RSRP

filtering coefficient used by the eNodeB.

The eNodeB filters the user-reported

RSRP values based on the value of this

parameter.

For details about the parameter configurations for a cell where adaptive ICIC is activated, see

Table 6-3.

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Table 6-3 Parameters for a cell where adaptive ICIC is activated

ParameterName

Parameter ID DataSource

Setting Notes

AreaIdentifier

AreaId User-defined This parameter specifies the ID of anarea, which uniquely identifies an

area within the eCoordinator.

Cell Index

Type

QueryCellIdType User-defined This parameter specifies a cell index

type used for query.

LTE Cell

Index

LTECellIndex Network

plan

(negotiation

not required)

This parameter specifies the index of

an LTE cell, which uniquely

identifies an LTE cell within the

network.

LTE Cell

Name

LTECellName Network

plan(negotiation

not required)

This parameter specifies the name of

an LTE cell. The cell name must notcontain the comma (,), semicolon (;),

equal sign (=), double quotation

marks (") or single quotation mark

('), two or more consecutive percent

signs (%), two or more consecutive

spaces, or three or more consecutive

plus signs (+). The cell name cannot

consist of spaces only.

Mobile

Country Code

MCC Network

plan

(negotiationnot required)


country code (MCC) that identifies

the country to which a mobile user belongs.

Mobile

Network

Code

MNC Network

plan

(negotiation

not required)


network code (MNC) that identifies

the public land mobile network

(PLMN) to which a mobile user

belongs.

eNodeB ID eNodeBId Network

plan

(negotiation

not required)

This parameter specifies the ID of an

eNodeB, which uniquely identifies

an eNodeB on the network.

Cell ID CellId Network

plan

(negotiation

not required)

This parameter specifies the ID of a

cell, which uniquely identifies a cell

within an eNodeB.

eNodeB Data Preparation

The following parameters on the eNodeB are required for configuring adaptive ICIC.

For details about measurement control parameters for ICIC event A3/A6, see Table 6-4.

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Table 6-4 Measurement control parameters

ParameterName


Setting Notes

A3 Offset CELLMCPARA. A3Of

fset

Netwo

rk plan

(negoti

ation

not

require

d)

This parameter specifies the offset for

event A3. This offset is the difference

between the signal quality of a

neighboring cell and that of the

serving cell. A larger value for this

parameter results in a higher

requirement on neighboring-cell

signal quality for reporting event A3.

Hysteresis CELLMCPARA.

Hysteresis

Netwo

rk plan

(negotiation

not

require

d)

This parameter specifies the

hysteresis for reporting event A3 or

A6. This parameter is used to preventfrequent entering or leaving of event

A3 or A6 and decision errors due to

radio signal fluctuation. For details,

see 3GPP TS 36.331.

Time to

Trigger

CELLMCPARA.Timet

oTrigger

Netwo

rk plan

(negoti

ation

not

require

d)

This parameter specifies the time-to-

trigger for reporting event A3 or A6.

When detecting that the signal

quality in the serving cell and that in

at least one neighboring cell meet the

entering condition, the UE does not

report the event to the eNodeBimmediately. Instead, the UE reports

the event only when the signal

quality continuously meets the

entering condition during the time-to-

trigger.

Max Report

Cell Number

CELLMCPARA. Max

ReportCells

Netwo

rk plan

(negoti

ation

not

require

d)

This parameter specifies the

maximum number of cells to be

included in each measurement report

after event A3 or A6 is triggered. For

details, see 3GPP TS 36.331.

Report

Amount

CELLMCPARA. Repo

rtAmount

Netwo

rk plan

(negoti

ation

not

require

d)

This parameter specifies the number

of periodic measurement reports that

are sent after event A3 or A6 is

triggered. For details, see 3GPP TS

36.331.

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ParameterName


Setting Notes

Report

Interval

CELLMCPARA. Repo

rtInterval

Netwo

rk plan

(negoti

ation

not

require

d)

This parameter specifies the interval

between periodic measurement

reports that are sent after event A3 or

A6 is triggered. For details, see 3GPP

TS 36.331.

Report

Quantity

CELLMCPARA. Repo

rtQuantity

Netwo

rk plan

(negoti

ation

not

require

d)

This parameter specifies the type of

the value to be included in the

measurement report after event A3 or

A6 is triggered, which can be set to

SAME_AS_TRIG_QUAN(Same as

Trig Quan) or BOTH(Both). The

value

SAME_AS_TRIG_QUAN(Same as

Trig Quan) indicates that the type of

the value to be included in the

measurement report is the same as

that specified by the

TriggerQuantity parameter. The

value BOTH(Both) indicates that

both RSRP and RSRQ values are

included in the measurement report.

The measured RSRP values arestable, slightly varying with the load,

and therefore there is little signal

fluctuation. The measured RSRQ

values vary with the load and are

likely to reflect the signal quality of

the cell in real time. For details, see

3GPP TS 36.331.

Trigger

Quantity

CELLMCPARA.Trigg

erQuantity

Netwo

rk plan

(negoti

ation

not

require

d)

This parameter specifies whether

event A3 or A6 is triggered based on

RSRP or RSRQ values. The

measured RSRP values are stable,

slightly varying with the load, and

therefore there is little signal

fluctuation. The measured RSRQ

values vary with the load and are

likely to reflect the signal quality of

the cell in real time.

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ParameterName


Setting Notes

A6 Offset CELLMCPARA. A6Of

fset

Netwo

rk plan

(negoti

ation

not

require

d)

This parameter specifies the offset for

event A6. This offset is the difference

between the signal quality of a

neighboring cell and that of the

serving cell. A larger value for this

parameter results in a higher

requirement on neighboring-cell

signal quality for reporting event A3.

For details about downlink cell PDSCH power control algorithm parameters, see Table 6-5.

Table 6-5 Downlink cell PDSCH power control algorithm parameters

ParameterName


Setting Notes

Center UE PA CELLDLPCPDS

CH.CcuPa

Network

plan

(negotiation

not

required)

This parameter specifies the PA value

of CCUs when downlink ICIC is

enabled.

Edge UE PA CELLDLPCPDS

CH.CeuPa

Network

plan

(negotiation

not

required)

This parameter specifies the PA value

of CEUs when downlink ICIC is

enabled.

For details about downlink ICIC algorithm parameters for a cell, see Table 6-6.

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Table 6-6 Downlink ICIC algorithm parameters for a cell

ParameterName


Setting Notes

User Attribution

Gfactor

Threshold

CELLDLICIC. DlIcicUserAttrGfac

torThd

Network plan

(negotiation

not

required)

This parameter specifies the Gindicator threshold for user attribute

determination in downlink adaptive

ICIC. If downlink adaptive ICIC is

enabled, the eNodeB selects CEUs

from the users whose G factors are

less than this threshold. Determine

the parameter value based on the

distribution of UEs' modulation and

coding scheme (MCS) indexes within

an area so that about one-third users

are determined to be CEUs. For

example, if an area is covered by 155cells and the percentages of users

whose MCS indexes are less than 6

and 7 are about 30% and 40%,

respectively, you can set this

parameter to 1. (The G factors

corresponding to MCS indexes 6 and

7 are 0.5 dB and 1.45 dB,

respectively.) The G factors

corresponding to MCS indexes 0 to

28 are -5.65, -4.5, -3.55, -2.35, -1.5,

-0.5, 0.5, 1.45, 2.45, 3.4, 3.7, 4.4, 5.4,

6.3, 7.25, 8.3, 8.95, 9.6, 10.15, 11.15,12.1, 13.15, 14.05, 15.1, 16, 17, 18.1,

19, and 20.1, respectively.

For details about the downlink ICIC scheduling policy parameter, see Table 6-7.

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Table 6-7 Downlink ICIC scheduling policy parameter

ParameterName


Setting Notes

Downlink ICIC Schedule

Mode

CELLDLSCHALGO. DlIcicSch

Mode

Network plan

(negotiation

not

required)

This parameter specifies thescheduling policy used when

downlink ICIC is enabled. If this

parameter is set to

EDGE_USER_NO_PRIO(Edge

User No Prio), both CCUs and

CEUs can preempt edge bands,

thereby improving CCUs'

performance. If this parameter is set

to EDGE_USER_PRIO(Edge User

Prio), CCUs are scheduled at both

the center band and the edge band

only after CEUs have been scheduledat the edge band, thereby improving

CEUs' performance.

For details about cell-level algorithm parameters, see Table 6-8.

Table 6-8 Cell-level algorithm parameters

ParameterName


Setting Notes

DL schedule

switch

CELLALGOSW

ITCH. DlSchSwit

ch

Network

plan

(negotiation

not

required)

This parameter specifies the switches

related to downlink scheduling in the

cell. The switches are used to enable

or disable specific downlink

scheduling functions.

FreqSelSwitch(FreqSelSwitch) :

Indicates whether to enable

frequency selective scheduling. If

this option is selected, data is

transmitted on the frequency band of

good signal quality.

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ParameterName


Setting Notes

Uplink

schedule

switch

CELLALGOSW

ITCH.UlSchSwit

ch

Network

plan

(negotiation

not

required)

This parameter specifies the switches

related to uplink scheduling in the

cell. The switches are used to enable

or disable specific uplink scheduling

functions.

UlEnhancedFssSwitch(UlEnhanced

FssSwitch): Indicates whether to

enable uplink load-based enhanced

frequency selection.

UlEnhancedDopplerS-

witch(UlEnhancedDopplerSwitch) :

Indicates whether to enable enhanced

uplink scheduling based on mobility

speed. If this option is selected,

enhanced uplink scheduling based on

mobility speed is enabled. If this

option is selected, the eNodeB

determines whether a UE is a low-

mobility UE based on the Doppler

measurement at the physical layer,

and then improves uplink

performance for low-mobility UEs. If

this option is deselected, enhanced

uplink scheduling based on mobility

speed is disabled. This switch takes

effect only when DopMeasLevel is

set to CLASS_1. This switch does

not take effect on cells established on

an LBBPc.

For details about the uplink scheduling algorithm parameter for a cell, see Table 6-6.

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Table 6-9 Uplink scheduling algorithm parameter

ParameterName


Setting Notes

Uplink Resource

Block

Allocation

Strategy

CELLULSCHALGO.UlRbAlloca

tionStrategy

Network plan

(negotiation

not

required)

This parameter specifies the strategyfor allocating resource blocks (RBs)

in the uplink of the cell. If this

parameter is set to

FS_NONFS_ADAPTIVE(Fs nonFs

Strategy)E, this strategy adaptively

switches between frequency selective

scheduling and non-frequency

selective scheduling. If this

parameter is set to

FS_INRANDOM_ADAPTIVE(Fs

InRandom Strategy), this strategy

adaptively switches betweenfrequency selective scheduling and

interference-randomization-based

scheduling.

For details about the cell PDCCH algorithm parameter, see Table 6-8.

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Table 6-10 Cell PDCCH algorithm parameter

ParameterName


Setting Notes

PDCCHSymbol

Number

Adjust Switch

CELLPDCCHALGO. PdcchSym

NumSwitch

Network plan

(negotiation

not

required)

This parameter specifies whether toenable dynamic adjustment on the

number of orthogonal frequency

division multiplexing (OFDM)

symbols occupied by the physical

downlink control channel (PDCCH).

If this parameter is set to OFF(Off),

the number of OFDM symbols

occupied by the PDCCH is fixed and

cannot be dynamically adjusted. If

this parameter is set to ON(On), the

number of OFDM symbols occupied

by the PDCCH is dynamicallyadjusted based on the required

number of PDCCH control channel

elements (CCEs). If this parameter is

set to

ECFIADAPTIONON(Enhanced

CFI Adaption On), the number of

OFDM symbols occupied by the

PDCCH is dynamically adjusted

based on the cell downlink

throughput, and the adjustment

performance is the best among the

three methods.

6.4.4 Precautions

None

6.4.5 Initial Configuration

The eCoordinator does not support adaptive ICIC. Therefore, using the CME to perform batch

configuration can only be performed on the eNodeB.

Using the CME to Perform Batch Configuration for Newly Deployed eNodeBs

Enter the values of the parameters listed in Table 6-11 in a summary data file, which also

contains other data for the new eNodeBs to be deployed.

Then, import the summary data file into the Configuration Management Express (CME) for

batch configuration. For detailed instructions, see "Creating eNodeBs in Batches" in the initial

configuration guide for the eNodeB, which is available in the eNodeB product documentation.

The summary data file may be a scenario-specific file provided by the CME or a customizedfile, depending on the following conditions:

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l The managed objects (MOs) in Table 6-11 are contained in a scenario-specific summary

data file. In this situation, set the parameters in the MOs, and then verify and save the

file.

l Some MOs in Table 6-11 are not contained in a scenario-specific summary data file. In

this situation, customize a summary data file to include the MOs before you can set the parameters.

Table 6-11 Parameters for adaptive ICIC

MO Sheet in the SummaryData File

Parameter Group Remarks

CellMcPara CELLMCPARA Local cell ID/A3 Offset/

Hysteresis/Time to

Trigger/Max Report Cell

Number/Report Amount/

Report Interval/ReportQuantity/Trigger

Quantity/A6 Offset/

IntraFreq Period MR Max

Report Cell/IntraFreq

Period MR Trigger

Quantity/IntraFreq Period

MR Report Quantity/

InterFreq Period MR Max

Report Cell/InterFreq

Period MR Trigger

Quantity/InterFreq Period

MR Report Quantity

-

CellDlpcPdsch CELLDLPCPDSCH Local cell ID/Center UE

PA/Edge UE PA

-

CellDlschAlgo CELLDLSCHALGO Local cell ID/Downlink

ICIC Schedule Mode

-

CellDlIcic CELLDLICIC Local cell ID/User

Attribution Gfactor

Threshold

-

CellAlgoSwitch CELLALGOSWITCH Local cell ID/DL schedule

switch/Uplink scheduleswitch

-

CellUlschAlgo CELLULSCHALGO Local cell ID/Uplink

Resource Block Allocation

Strategy

-

CellPdcchAlgo CELLPDCCHALGO Local cell ID/

PdcchSymNumSwitch

-

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Using the CME to Perform Batch Configuration for Existing eNodeBs

Batch reconfiguration using the CME is the recommended method to activate a feature on

existing eNodeBs. This method reconfigures all data, except neighbor relationships, for

multiple eNodeBs in a single procedure. The procedure is as follows:

Step 1 Customize a summary data file with the MOs and parameters listed in section "Using the

CME to Perform Batch Configuration for Newly Deployed eNodeBs." For online help, press

F1 when a CME window is active, and select Managing the CME > CME Guidelines >

LTE Application Management > eNodeB Related Operations > Customizing a Summary

Data File for Batch eNodeB Configuration.

Step 2 Choose CME > LTE Application > Export Data > Export Base Station Bulk

Configuration Data (U2000 client mode), or choose LTE Application > Export Data >

Export Base Station Bulk Configuration Data (CME client mode), to export the eNodeB

data stored on the CME into the customized summary data file.

Step 3 In the summary data file, set the parameters in the MOs according to the setting notes

provided in section "Data Prepar ation" and close the file.

Step 4 Choose CME > LTE Application > Import Data > Import Base Station Bulk

Configuration Data (U2000 client mode), or choose LTE Application > Import Data >

Import Base Station Bulk Configuration Data (CME client mode), to import the summary

data file into the CME, and then start the data verification.

Step 5 After data verification is complete, choose CME > Planned Area > Export Incremental

Scripts (U2000 client mode), or choose Area Management > Planned Area > Export

Incremental Scripts (CME client mode), to export and activate the incremental scripts. For

detailed operations, see Managing the CME > CME Guidelines > Script File Management

> Exporting Incremental Scripts from a Planned Data Area in the CME online help.

----End

Using the CME to Perform Single Configuration

Perform required operations on both the MCE (ECO6910) and the eNodeB.

On the CME, set the parameters listed in the 6.4.3 Data Preparation section for a single

eNodeB. The procedure is as follows:

Step 1 In the planned data area, select an object view in the upper left corner of the configuration

window. When performing the configuration on the MCE (ECO6910), click Controller in the

left pane. When performing the configuration on the eNodeB, click Base Station in the left

pane.

Step 2 In area 1 shown in Figure 6-2, select the eNodeB to which the MOs belong.

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Figure 6-2 MO search and configuration window (using the configuration on the eNodeB as

an example)

NOTE

l Choose CME > Planned Area > Export Incremental Scripts (U2000 client mode), or choose Area

Management > Planned Area > Export Incremental Scripts (CME client mode), to export and

activate the incremental scripts.l Area 5 displays the details about a selected area-4 entry in vertical format. Click the Details icon to

show or hide this area.

Step 3 On the Search tab page in area 2, enter an MO name, for example, CELL.

Step 4 In area 3, double-click the MO in the Object Name column. All parameters in this MO are

displayed in area 4.

Step 5 Set the parameters in area 4 or 5.

Step 6 Choose CME > Planned Area > Export Incremental Scripts (U2000 client mode), or

choose Area Management > Planned Area > Export Incremental Scripts (CME client

mode), to export and activate the incremental scripts.

----End

Using MML Commands

Run the following commands on the eCoordinator LMT:

Step 1 Run the ADD ELTECELL command to add an LTE cell.

Step 2 Run the ADD AICIC command to add an area where adaptive ICIC is to be activated.

Step 3 Run the ADD AICICCELL command to add a cell where adaptive ICIC is to be activated.

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Step 4 Run the ACT AICIC command to activate adaptive ICIC.

----End

Run the following commands on the eNodeB:

Step 1 Run the MOD CELLMCPARA command to configure event A3/A6 measurement control

parameters.

Step 2 Run the MOD CELLDLPCPDSCH command to configure the PA values of CCUs and

CEUs for adaptive ICIC.

Step 3 Run the MOD CELLDLSCHALGO command to set the downlink scheduling policy for

each cell.

Step 4 Run the MOD CELLDLICIC command to configure the G factor threshold for determining

user attributes.

Step 5 Run the MOD CELLALGOSWITCH command to configure uplink and downlink scheduling algorithm parameters.

Step 6 Run the MOD CELLULSCHALGO command to set the uplink resource allocation policy.

Step 7 Run the MOD CELLPDCCHALGO command to set the PDCCH algorithm parameter.

----End

6.4.6 Activation Observation

Using MML Commands

Run the DSP AICIC command on the eCoordinator LMT to check the running status of

adaptive ICIC. If the command output shows that the value of Task Status is Running,

adaptive ICIC has been activated.

Using Counters

After an optimization period, check on the U2000 client the running status of adaptive ICIC

using the eCoordinator counters listed in Table 6-12. If not all counter values are 0, adaptive

ICIC has been activated.

Table 6-12 Adaptive ICIC counters on the eCoordinator


73428861 VS.ELTECELL.AICIC.Config.Succ Number of successful

deliveries of edge band

mode configuration

73428293 VS.ELTECELL.AICIC.Config.Fail Number of unsuccessful

deliveries of edge band

mode configuration

73428858 VS.ELTECELL.AICIC.Config.Att Number of attempts to

deliver edge band mode

configuration

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73428857 VS.ELTECELL.AICIC.Config.RspTimeout Number of timeout

deliveries of the band

division scheme

configuration

73428860 VS.ELTECELL.AICIC.DL.Mode.1 Number of times the

downlink edge band mode is

set to Reuse1

73428859 VS.ELTECELL.AICIC.DL.Mode.3.1 Number of times the


set to Reuse3-1



set to Reuse3-2



set to Reuse3-3



set to Reuse6-1



set to Reuse6-2



set to Reuse6-3



set to Reuse6-4



set to Reuse6-5

73428871 VS.ELTECELL.AICIC.DL.Mode.6.6 Number of times thedownlink edge band mode is

set to Reuse6-6

73428869 VS.ELTECELL.AICIC.UL.Mode.1 Number of times the uplink

edge band mode is set to

Reuse1

73428868 VS.ELTECELL.AICIC.UL.Mode.3.1 Number of times the uplink


Reuse3-1

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Reuse3-2



Reuse3-3



Reuse6-1



Reuse6-2



Reuse6-3



Reuse6-4



Reuse6-5

73428315 VS.ELTECELL.AICIC.UL.Mode.6.6 Number of times the uplink edge band mode is set to

Reuse6-6

Using an Se Interface Trace Task

On the eCoordinator LMT, use an Se interface trace task to check whether adaptive ICIC has

been activated:

Step 1 Choose Trace > Coordinating Services > Se Interface Trace. Double-click Se Interface

Trace.

Step 2 In the displayed dialog box, click the Basic tab, select SCTPAP in the Trace Type area,

select the message of adaptive ICIC, and set related parameters.

Step 3 Click Submit. An Se interface trace task is created.

Step 4 Check the trace result. If the result includes the AICIC_DATA_RPT, AICIC_CONFIG, and

AICIC_CONFIG_ACK messages, as shown in the following figure, adaptive ICIC has been

activated.

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Figure 6-3 Messages related to adaptive ICIC

----End

6.4.7 Reconfiguration

Run MML commands on the eCoordinator LMT to reconfigure adaptive ICIC parameters.

If you need to... Then...

Reconfigure an

optimization cell

Run the RMV AICICCELL command to delete a cell for

adaptive ICIC.

Run the ADD AICICCELL command to add a cell for adaptive

ICIC.

Reconfigure an

optimization area

Run the MOD AICIC command to reconfigure parameters for

adaptive ICIC.

NOTE

If an optimization area is running, reconfiguring the parameter

optimization type will cause the optimization area to restart. The

optimization period will be reset to the restart time.

6.4.8 Deactivation

Using the CME to Perform Batch Configuration

Batch reconfiguration using the CME is the recommended method to deactivate a feature on

eNodeBs. This method reconfigures all data, except neighbor relationships, for multiple

eNodeBs in a single procedure. The procedure for feature deactivation is similar to that for

feature activation described in Using the CME to Perform Batch Configuration for

Existing eNodeBs. In the procedure, modify parameters according to Table 6-13.

Table 6-13 Parameter used to deactivate adaptive ICIC


Parameter Group Setting Notes

AICICCELL AICICCELL For details, see 6.4.3 Data

Preparation.

None

CellAlgoSwitch CELLALGOSWITCH For details, see 6.4.3 Data

Preparation.

None

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Parameter Group Setting Notes

CellUlschAlgo CELLULSCHALGO For details, see 6.4.3 Data

Preparation.

None

CellPdcchAlgo CELLPDCCHALGO For details, see 6.4.3 Data

Preparation.

None

Run the DEA AICIC command on the eCoordinator LMT to deactivate adaptive ICIC.

Using the CME to Perform Single Configuration

On the CME, set parameters according to Table 6-13. For detailed instructions, see Using the

CME to Perform Single Configuration described for feature activation.

Run the DEA AICIC command on the eCoordinator LMT to deactivate adaptive ICIC.

Using MML Commands

Run the following commands on the eNodeB:

Step 1 Run the MOD CELLALGOSWITCH command to configure uplink and downlink

scheduling algorithm parameters.

Step 2 Run the MOD CELLULSCHALGO command to configure the uplink resource allocation

policy.

Step 3 Run the MOD CELLPDCCHALGO command to set the PDCCH algorithm parameter.

----End

Run the following commands on the eCoordinator LMT:

Step 1 Run the RMV AICICCELL command to delete the cell where adaptive ICIC is activated.

Step 2 Run the DEA AICIC command to deactivate adaptive ICIC.

----End

6.5 Performance Monitoring

Check the changes in the following items after Adaptive ICIC is activated: uplink and

downlink CEU throughput, average uplink and downlink edge spectral efficiency, and number

of times different MCS indexes are scheduled in the uplink and downlink. These changes

reflect the effect of Adaptive ICIC. The average edge spectral efficiency can be calculated

using the following formula:

Average edge spectral efficiency = Total bits of user data from CEUs in a cell/(Total duration

for transmission of CEU data in a cell x Average number of PRBs used by CEUs in a cell)Table 6-14 describes the related performance counters.

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Table 6-14 Counters used to monitor adaptive ICIC


1526728475 L.Thrp.bits.UL

.CEU

Total bits of uplink PDCP PDUs received from

CEUs in a cell

1526728476 L.Thrp.Time.U

L.CEU

Total duration in which uplink user data is

received from CEUs at the PDCP layer in a cell

1526728477 L.Thrp.bits.DL

.CEU

Total bits of downlink PDCP SDUs sent to CEUs

in a cell

1526728478 L.Thrp.Time.D

L.CEU

Total duration in which downlink user data is sent

to CEUs at the PDCP layer in a cell

1526728479 L.ChMeas.PRB

.UL.CEU.Used.

Avg

Average number of PRBs used by uplink CEUs

in a cell

1526728480 L.ChMeas.PRB

.DL.CEU.Used.

Avg

Average number of PRBs used by downlink

CEUs in a cell

1526727444 to

1526727475

L.ChMeas.PDS

CH.MCS.0 to

L.ChMeas.PDS

CH.MCS.31

Number of times MCS index N ( N = 0 to 31) is

scheduled on the PDSCH

1526727412 to

1526727443

L.ChMeas.PUS

CH.MCS.0 to

L.ChMeas.PUSCH.MCS.31

Number of times MCS index N ( N = 0 to 31) is

scheduled on the PUSCH

1526728262 L.Thrp.Time.D

L

Total transmit duration of downlink PDCP SDUs

in a cell

1526728261 L.Thrp.bits.DL Total downlink traffic volume for PDCP SDUs in

a cell

1526737747 L.Traffic.User.

CEU.DL.AICI

C.Avg

Number of UEs identified as CEUs in downlink

adaptive ICIC

1526737748 L.ChMeas.PRB.DL.AICIC.CE

B.Avg

Number of PRBs of the downlink edge bandconfigured for the cell in adaptive ICIC

6.6 Parameter Optimization

The parameters of adaptive ICIC that can be optimized include eCoordinator parameters and

eNodeB parameters.

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6.6.1 eCoordinator Parameters

l The Optimization Period parameter specifies how often the eCoordinator analyzes

network conditions and provides the optimization advice.

–If the parameter value is too large, the cell mode and network performance remainstable for a long period of time. However, the cell mode cannot be updated in a

timely manner if the interference or cell load varies, which may adversely affect

network performance.

– If the parameter value is too small, the eCoordinator can trace changes in network

conditions quickly and provide the appropriate optimization advice. However, the

eCoordinator will be heavily loaded for a long period of time and may cause

fluctuations in network performance.

In most cases, retain the default value of the Optimization Period parameter,

which is Hour_1(1 Hour). However, the parameter value can be modified as

required. For details, see 6.4.7 Reconfiguration.

l Optimization objects are cells to be optimized by adaptive ICIC. All of the cells to beoptimized form an optimization zone. You can add or remove objects to adjust the range

of an optimization zone. It is recommended that cells providing continuous coverage be

selected to form an optimization zone. For details, see 6.4.7 Reconfiguration.

6.6.2 eNodeB Parameters

Offset Parameters of ICIC A3 and A6 Events

The offset parameters of downlink ICIC event A3, downlink ICIC event A6, and uplink ICIC

event A3 are specified by the CellMcPara. A3Offset , CellMcPara. A6Offset , and

CellULIcicMcPara. A3Offset parameters, respectively. These parameters are used to adjustthe number of CEUs by adjusting the cell edge scope reported in ICIC events. When the

number of CEUs in an area accounts for about 1/3 of the total number of UEs in this area,

adaptive ICIC achieves the best performance.

l If one of these parameters is set to a large value, it is difficult to trigger the reporting of

the corresponding ICIC event. As a result, the number of CEUs decreases, and some UEs

are no longer regarded as CEUs and no longer coordinated by the eNodeB. In the uplink,

these UEs are scheduled on the center band, which leads to high interference to

neighboring cells and affects the CEU performance of neighboring cells. In the

downlink, these UEs are regarded as CCUs and scheduled with low power, causing

deterioration in the performance of these UEs.

l

If one of these parameters is set to a small value, it is easy to trigger the reporting of thecorresponding ICIC event. As a result, the number of CEUs increases, and some CEUs

that require performance improvement cannot be coordinated and therefore their

performance deteriorates.

In conclusion, if the proportion of CEUs is far beyond or below 1/3 in an area during a period,

reconfigure the corresponding parameter and enable the proportion to be close to 1/3. The

average number of uplink CEUs is measured by the L.Traffic.ULCEU.Avg counter, and the

average number of downlink CEUs is measured by the L.Traffic.CEU.Avg counter.

Scheduling Policy Used in Downlink Adaptive ICIC

The scheduling policy used in downlink adaptive ICIC is specified by theCellDlschAlgo. DlIcicSchMode parameter:

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l The parameter value EDGE_USER_NO_PRIO(Edge User No Prio) indicates that

CCUs can preempt the edge band and therefore CCUs have better performance than

CEUs.

l The parameter value EDGE_USER_PRIO(Edge User Prio) indicates that CCUs can be

scheduled on the edge band only after CEUs are scheduled on the edge band andtherefore CEUs have better performance than CCUs.

In conclusion, you can adjust the performance of CEUs or CCUs by reconfiguring the

scheduling policy used in downlink adaptive ICIC.

G Factor Threshold Used in Downlink CEUs

The G factor threshold for determining a UE type is specified by the

CellDlIcic. DlIcicUserAttrGfactorThd parameter.

l If this parameter is set to a large value, the number of CEUs increases.

l If this parameter is set to a small value, the number of CEUs decreases.

When downlink adaptive ICIC is enabled, you can determine the parameter value based on

the MCS distribution of UEs in an area and enable the proportion of CEUs to be closer to 1/3.

6.7 Troubleshooting

Optimization Task Startup Failure

If an optimization task fails to start, check whether ALM-20741 Configuration Data

Exceeding License Capacity has been reported.

l If so, clear the alarm by following the procedures provided in ECO6910 Alarm

Reference.

l If not, contact Huawei engineers.

Alarms Related to Adaptive ICIC

Table 6-15 lists the alarms related to adaptive ICIC.

Table 6-15 Alarms related to adaptive ICIC

Alarm ID Alarm Name NE

20906 eCoordinator and NE Disconnect Alarm eCoordinator

20741 Configuration Data Exceeding License Capacity eCoordinator

22702 Feature Function Disabled Abnormal eCoordinator

22701 Run short of NE data eCoordinator

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7 Parameters

Table 7-1 Parameters

MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

CellDlIc

ic

DlIcicU

serAttrG

factorTh

d

MOD

CELLD

LICIC

LST

CELLD

LICIC

LOFD-0

60201

Adaptiv

e Inter-

Cell

Interfere

nce

Coordin

ation

Meaning: Indicates the G factor threshold for user

attribute determination in downlink adaptive Inter-

Cell Interference Coordination (ICIC). If downlink

adaptive ICIC is enabled, the eNodeB selects cell edge

users (CEUs) from the users whose G factors are less

than this threshold. Determine the parameter value

based on the distribution of UEs' modulation and

coding scheme (MCS) indexes within an area so thatabout one third users are determined to be CEUs. For

example, if an area is covered by 155 cells and the

percentages of users whose MCS indexes are less than

6 and 7 are about 30% and 40%, respectively, you can

set this parameter to 1. (The G factors corresponding

to MCS indexes 6 and 7 are 0.5 dB and 1.45 dB,

respectively.) The G factors corresponding to MCS

indexes 0 to 28 are–5.65,–4.5,–3.55,–2.35,–

1.5,–0.5, 0.5, 1.45, 2.45, 3.4, 3.7, 4.4, 5.4, 6.3, 7.25,

8.3, 8.95, 9.6, 10.15, 11.15, 12.1, 13.15, 14.05, 15.1,

16, 17, 18.1, 19, and 20.1, respectively.

GUI Value Range: -5~15

Unit: dB

Actual Value Range: -5~15

Default Value: 1

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Adaptive ICIC Feature Parameter Description 7 Parameters



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MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

CellUlsc

hAlgo

UlRbAll

ocationS

trategy

MOD

CELLU

LSCHA

LGO

LST

CELLU

LSCHA

LGO

LOFD-0

0101502

/

TDLOF

D-00101

502

Dynami

c

Scheduli

ng

Meaning: Indicates the strategy for allocating resource

blocks (RBs) in the uplink of the cell. If this parameter

is set to FS_NONFS_ADAPTIVE, this strategy

adaptively switches between frequency selective

scheduling and non-frequency selective scheduling. If

this parameter is set to

FS_INRANDOM_ADAPTIVE, this strategy

adaptively switches between frequency selective

scheduling and interference-randomization-based

scheduling.

GUI Value Range: FS_NONFS_ADAPTIVE(Fs

nonFs Strategy), FS_INRANDOM_ADAPTIVE(Fs

InRandom Strategy)

Unit: None

Actual Value Range: FS_NONFS_ADAPTIVE,

FS_INRANDOM_ADAPTIVE

Default Value: FS_INRANDOM_ADAPTIVE(Fs

InRandom Strategy)

CellDlp

cPdsch

CeuPa MOD

CELLD

LPCPD

SCH

LSTCELLD

LPCPD

SCH

LBFD-0

02016 /

TDLBF

D-00201

6LBFD-0

0202201

/

TDLBF

D-00202

201

LOFD-0

0101401

Dynami

c

Downlin

k Power

Allocation

Downlin

k Static

Inter-

Cell

Interfere

nce

Coordin

ation

Downlin

k Dynami

c Inter-

Cell

Interfere

nce

Coordin

ation

Meaning: Indicates the PA value of cell edge UEs

when DL ICIC is enabled.

GUI Value Range: PA_NEG6(-6dB),

PA_NEG4DOT77(-4.77dB), PA_NEG3(-3dB),

PA_NEG1DOT77(-1.77dB), PA_0(0dB), PA_1(1dB),PA_2(2dB), PA_3(3dB)

Unit: dB

Actual Value Range: PA_NEG6, PA_NEG4DOT77,

PA_NEG3, PA_NEG1DOT77, PA_0, PA_1, PA_2,

PA_3

Default Value: PA_NEG1DOT77(-1.77dB)

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MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

CellDlp

cPdsch

CcuPa MOD

CELLD

LPCPD

SCH

LST

CELLD

LPCPD

SCH

LBFD-0

02016 /

TDLBF

D-00201

6

LBFD-0

0202201

/

TDLBF

D-00202

201

LOFD-0

0101401

Dynami

c

Downlin

k Power

Allocati

on

Downlin

k Static

Inter-

Cell

Interfere

nce

Coordination

Downlin

k

Dynami

c Inter-

Cell

Interfere

nce

Coordin

ation

Meaning: Indicates the PA value of cell center UEs

when DL ICIC is enabled.

GUI Value Range: PA_NEG6(-6dB),

PA_NEG4DOT77(-4.77dB), PA_NEG3(-3dB),

PA_NEG1DOT77(-1.77dB), PA_0(0dB), PA_1(1dB),

PA_2(2dB), PA_3(3dB)

Unit: dB

Actual Value Range: PA_NEG6, PA_NEG4DOT77,

PA_NEG3, PA_NEG1DOT77, PA_0, PA_1, PA_2,

PA_3

Default Value: PA_NEG6(-6dB)

CellDlpcPdschP

a

PaPcOff MODCELLD

LPCPD

SCHPA

LST

CELLD

LPCPD

SCHPA

LBFD-002016 /

TDLBF

D-00201

6

Dynamic

Downlin

k Power

Allocati

on

Meaning: Indicates the PA to be used when PAadjustment for PDSCH power control is disabled, DL

ICIC is disabled, and the even power distribution is

used for the PDSCH.

GUI Value Range: DB_6_P_A(-6 dB),

DB_4DOT77_P_A(-4.77 dB), DB_3_P_A(-3 dB),

DB_1DOT77_P_A(-1.77 dB), DB0_P_A(0 dB),

DB1_P_A(1 dB), DB2_P_A(2 dB), DB3_P_A(3 dB)

Unit: dB

Actual Value Range: DB_6_P_A, DB_4DOT77_P_A,

DB_3_P_A, DB_1DOT77_P_A, DB0_P_A,

DB1_P_A, DB2_P_A, DB3_P_A

Default Value: DB_3_P_A(-3 dB)

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52



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

CellMcP

ara

A3Offse

t

MOD

CELLM

CPARA

LST

CELLM

CPARA

None None Meaning: Indicates the offset for event A3. This offset

is the difference between the signal quality of a

neighboring cell and that of the serving cell. A larger

value indicates a higher requirement on neighboring

cell quality for reporting event A3.


Unit: 0.5dB


Default Value: -13

CellMcP

ara

Hysteres

is

MOD

CELLMCPARA

LST

CELLM

CPARA

None None Meaning: Indicates the hysteresis for reporting event

A3 or A6. This parameter is used to prevent frequententering or leaving of event A3 or A6 and decision

errors due to radio signal fluctuation. For details, see

3GPP TS 36.331.

GUI Value Range: 0~30

Unit: 0.5dB

Actual Value Range: 0~15

Default Value: 4

CellMcP

ara

TimetoT

rigger

MOD

CELLM

CPARALST

CELLM

CPARA

None None Meaning: Indicates the time-to-trigger for reporting

event A3 or A6. When detecting that the signal quality

in the serving cell and that in at least one neighboringcell meet the entering condition, the UE does not

report the event to the eNodeB immediately. Instead,

the UE reports the event only when the signal quality

continuously meets the entering condition during the

time-to-trigger.

GUI Value Range: 0ms, 40ms, 64ms, 80ms, 100ms,

128ms, 160ms, 256ms, 320ms, 480ms, 512ms, 640ms,

1024ms, 1280ms, 2560ms, 5120ms

Unit: ms

Actual Value Range: 0ms, 40ms, 64ms, 80ms, 100ms,

128ms, 160ms, 256ms, 320ms, 480ms, 512ms, 640ms,1024ms, 1280ms, 2560ms, 5120ms

Default Value: 640ms

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53



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

CellMcP

ara

ReportA

mount

MOD

CELLM

CPARA

LST

CELLM

CPARA

None None Meaning: Indicates the number of periodic

measurement reports that are sent after event A3 or

A6 is triggered. For details, see 3GPP TS 36.331.

GUI Value Range: r1(1), r2(2), r4(4), r8(8), r16(16),

r32(32), r64(64), Infinity(Infinity)

Unit: None

Actual Value Range: r1, r2, r4, r8, r16, r32, r64,

Infinity

Default Value: Infinity(Infinity)

CellMcP

ara

ReportIn

terval

MOD

CELLMCPARA

LST

CELLM

CPARA

None None Meaning: Indicates the interval between periodic

measurement reports that are sent after event A3 or A6 is triggered. For details, see 3GPP TS 36.331.

GUI Value Range: 120ms, 240ms, 480ms, 640ms,

1024ms, 2048ms, 5120ms, 10240ms, 1min, 6min,

12min, 30min, 60min

Unit: None

Actual Value Range: 120ms, 240ms, 480ms, 640ms,

1024ms, 2048ms, 5120ms, 10240ms, 1min, 6min,

12min, 30min, 60min

Default Value: 5120ms

CellMcPara

ReportQuantity

MODCELLM

CPARA

LST

CELLM

CPARA

None None Meaning: Indicates the type of the value to beincluded in the measurement report after event A3 or

A6 is triggered, which can be set to

SAME_AS_TRIG_QUAN(Same as Trig Quan) or

BOTH(Both). The value

SAME_AS_TRIG_QUAN(Same as Trig Quan)

indicates that the type of the value to be included in

the measurement report is the same as that specified

by the TriggerQuantity parameter. The value

BOTH(Both) indicates that both RSRP and RSRQ

values are included in the measurement report. The

measured RSRP values are stable, slightly varying

with the load, and therefore there is little signalfluctuation. The measured RSRQ values vary with the

load and are likely to reflect the signal quality of the

cell in real time. For details, see 3GPP TS 36.331.

GUI Value Range: SAME_AS_TRIG_QUAN(Same

as Trig Quan), BOTH

Unit: None

Actual Value Range: SAME_AS_TRIG_QUAN,

BOTH

Default Value: BOTH

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54



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

CellMcP

ara

Trigger

Quantity

MOD

CELLM

CPARA

LST

CELLM

CPARA

None None Meaning: Indicates whether event A3 or A6 is

triggered based on RSRP or RSRQ values. The

measured RSRP values are stable, slightly varying

with the load, and therefore there is little signal

fluctuation. The measured RSRQ values vary with the

load and are likely to reflect the signal quality of the

cell in real time.

GUI Value Range: RSRP, RSRQ

Unit: None

Actual Value Range: RSRP, RSRQ

Default Value: RSRP

CellMcP

ara

A6Offse

t

MOD

CELLM

CPARA

LST

CELLM

CPARA

None None Meaning: Indicates the offset for event A6. This offset

is the difference between the signal quality of a

neighboring cell and that of the serving cell. A larger

value indicates a higher requirement on neighboring

cell quality for reporting event A6.


Unit: 0.5dB


Default Value: -13

CellDlschAlgo

DlIcicSchMode

MODCELLD

LSCHA

LGO

LST

CELLD

LSCHA

LGO

LBFD-002025/

TDLBF

D-00202

5

LOFD-0

0101502

/

TDLOF

D-00101

502

BasicScheduli

ng

Dynami

c

Scheduli

ng

Meaning: Indicates the scheduling policy used whendownlink ICIC is enabled. If this parameter is set to

EDGE_USER_NO_PRIO, both cell center users

(CCUs) and cell edge users (CEUs) can preempt edge

bands, thereby improving CCUs' performance. If this

parameter is set to EDGE_USER_PRIO, CCUs are

scheduled at both the center band and the edge band

only after CEUs have been scheduled at the edge

band, and therefore CEUs' performance improves.

GUI Value Range: EDGE_USER_NO_PRIO(Edge

User No Prio), EDGE_USER_PRIO(Edge User Prio)

Unit: NoneActual Value Range: EDGE_USER_NO_PRIO,

EDGE_USER_PRIO

Default Value: EDGE_USER_NO_PRIO(Edge User

No Prio)

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MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

CellAlg

oSwitch

DlSchS

witch

MOD

CELLA

LGOSW

ITCH

LST

CELLA

LGOSW

ITCH

LOFD-0

01016 /

TDLOF

D-00101

6

LOFD-0

0101502

/

TDLOF

D-00101

502

LOFD-0

01109 /

TDLOF

D-00110

9

LOFD-0

01070 /

TDLOF

D-00107

0

TDLOF

D-07022

4

LBFD-0

02025 /

TDLBF

D-00202

5

LBFD-0

02031 /

TDLBF

D-00203

1

LBFD-0

70102 /

TDLBF

D-07010

2

LBFD-0

60202

VoIP

Semi-

persisten

t

Scheduli

ng

Dynami

c

Scheduli

ng

DL

Non-

GBR

Packet

Bundlin

g

Symbol

Power

Saving

Scheduli

ng

Based

on Max

Bit Rate

Basic

Scheduli

ng

Support

of

aperiodi

c CQI

reports

MBR>G

BR

Configu

ration

Enhance

d DL

Frequen

cy

Selectiv

e

Meaning:

Indicates the switches related to downlink scheduling

in the cell.

FreqSelSwitch: Indicates whether to enable frequency

selective scheduling. If this switch is on, data is

transmitted on the frequency band in good signal

quality.

ServiceDiffSwitch: Indicates whether to enable

service differentiation. If this switch is on, service

differentiation is applied. If this switch is off, service

differentiation is not applied.

SpsSchSwitch: Indicates whether to enable semi-

persistent scheduling during talk spurts of VoIP

services. If this switch is on, semi-persistent

scheduling is applied during talk spurts of VoIP

services. If this switch is off, dynamic scheduling is

applied during talk spurts of VoIP services.

MBSFNShutDownSwitch: Indicates whether to

enable Multimedia Broadcast multicast service Single

Frequency Network (MBSFN) subframe shutdown. If

this switch is on, MBSFN subframe shutdown is

applied. If this switch is off, MBSFN subframeshutdown is not applied. This switch is valid only

when SymbolShutdownSwitch is on. If the MBSFN

shutdown switch is on, the setting of the switch for

mapping SIBs to SI messages becomes invalid. The

latter can be specified by the SiMapSwitch parameter

in the CellSiMap MO. If the MBSFN subframe

shutdown switch is off, the setting of the switch for

mapping SIBs to SI messages becomes valid. MBSFN

subframe shutdown applies only to LTE-only base

stations.

NonGbrBundlingSwitch: Indicates whether to enabledownlink non-GBR packet bundling. If this switch is

on, delay of non-GBR services can be controlled in

non-congestion scenarios. If this switch is off, delay of

non-GBR services cannot be controlled.

EnAperiodicCqiRptSwitch: Indicates whether to

enable enhanced aperiodic channel quality indicator

(CQI) reporting. If this switch is on, the eNodeB

triggers aperiodic CQI reporting for a UE based on

downlink services of the UE and the interval at which

the UE sends periodic CQI reports. If this switch is

off, UEs under non-frequency selective scheduling do

not trigger aperiodic CQI reporting based on downlink

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56



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

services and triggers an aperiodic CQI reporting if no

valid periodic CQI reports are sent in eight

consecutive periodic CQI reporting periods.

DlMbrCtrlSwitch: Indicates whether to enable

downlink scheduling based on the maximum bit rate

(MBR) and guaranteed bit rate (GBR) on the GBR

bearer. If this switch is on, the eNodeB performs

downlink scheduling on GBR bearers based on the

MBR and GBR. If this switch is off, the eNodeB

performs downlink scheduling on GBR bearers based

on the GBR only.

MbrDlSchSwitch: Indicates whether the eNodeB performs downlink scheduling based on MBR. If this

switch is on, the eNodeB determines priorities of UEs

based on the MBR in downlink scheduling. This

parameter applies only to LTE TDD cells.

UeAmbrDlSchSwitch: Indicates whether the eNodeB

performs downlink scheduling based on the aggregate

maximum bit rate (AMBR) of UEs. If this switch is

on, the eNodeB determines priorities of UEs based on

the AMBR of UEs in downlink scheduling. This


EpfEnhancedSwitch: Indicates whether to enable

enhanced proportional fair (EPF) for downlink

scheduling. EPF for downlink scheduling is enabled

only when this switch is on.

AperiodicCqiTrigOptSwitch: Indicates whether to

trigger aperiodic CQI optimization. If this switch is

on, a UE performing initial access triggers aperiodic

CQI reporting based on related triggering conditions

after the DLMAC instance has been established for

200 ms and the eNodeB receives MSG5. Consider that

aperiodic CQI reporting is triggered by invalid CQI

reports in eight consecutive CQI reporting periods. If cyclic redundancy check (CRC) on aperiodic CQI

reports fails, aperiodic CQI reporting is not repeatedly

triggered when DRX is enabled; or aperiodic CQI

reporting is triggered after eight TTIs when DRX is

disabled. If this switch is off, a UE performing initial

access triggers aperiodic CQI reporting based on

related triggering conditions after the DLMAC

instance has been established for 200 ms. Consider

that aperiodic CQI reporting is triggered by invalid

CQI reports in eight consecutive CQI reporting

periods. If CRC on aperiodic CQI reports fails,

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57



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

aperiodic CQI reporting is triggered after eight TTIs

regardless of the DRX status.

VoipTbsBasedMcsSelSwitch: Indicates whether the

modulation and coding scheme (MCS) index is

selected based on the transport block size (TBS) in

downlink scheduling for VoIP services. If this switch

is on, the MCS index is selected based on the TBS in

downlink scheduling for VoIP services. If this switch

is off, the MCS index is not selected based on the TBS

in downlink scheduling for VoIP services.

UeSigMcsEnhanceSwitch: Indicates whether to

enable or disable the optimized MCS algorithm for UE signaling. The optimized MCS algorithm for UE

signaling takes effect after this switch is on. This


PagingInterfRandSwitch: Indicates whether to enable

or disable interference randomizing for paging

messages. If this switch is on, interference

randomizing is enabled for paging messages. This

switch is valid only in TDD mode.

DlSingleUsrMcsOptSwitch: Indicates conditions for

lowering the modulation and coding scheme (MCS)

for a single UE. When this switch is on, the MCS can

be lowered for a UE if the UE is the only UE to be

scheduled in a transmission time interval (TTI). When

this switch is off, the MCS can be lowered for a UE if

there are only 10 percent of TTIs having UEs to

schedule in each sparse packet determination period

and the UE is the only UE to be scheduled in each

TTI.

SubframeSchDiffSwitch: Indicates whether subframes

3 and 8 perform scheduling based on increased

number of uplink scheduling UEs when subframe

configuration type 2 is used. If this switch is on,subframes 3 and 8 perform scheduling based on

increased number of uplink scheduling UEs when

subframe configuration type 2 is used. If this switch is

off, subframes 3 and 8 perform scheduling based on

the policy that other downlink subframes adopt when

subframe configuration type 2 is used. This switch is

dedicated to LTE TDD cells.

TailPackagePriSchSwitch: Indicates the switch that

controls the scheduling of downlink connected tail

packages in the bearer. If this switch is on, the

connected tail package is scheduled preferentially in

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58



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

the next TTI, which reduces the delay and increases

the transmission rate. If this switch is off, the

scheduling strategy of the connected tail package is

the same as other downlink subframes. This switch is

dedicated to LTE TDD cells.

FreqSelJudgeIgnorDopplerSwitch: Indicates whether

Doppler determination conditions are considered

during channel frequency selective scheduling

determination. Doppler determination conditions are

considered only when this option is deselected. This

option applies only to LTE FDD.

SIB1InterfRandSwitch: Indicates whether to enableSIB1 interference randomizing. If this switch is on,

interference randomizing is enabled for SIB1. This

switch applies only to LTE TDD cells.

GUI Value Range: FreqSelSwitch(FreqSelSwitch),

ServiceDiffSwitch(ServiceDiffSwitch),

SpsSchSwitch(SpsSchSwitch),

MBSFNShutDownSwitch(MBSFNShutDownSwitch),

NonGbrBundlingSwitch(NonGbrBundlingSwitch),

EnAperiodicCqiRptSwitch(EnAperiodicCqiRptS-

witch), DlMbrCtrlSwitch(DlMbrCtrlSwitch),

MbrDlSchSwitch(MbrDlSchSwitch),

UeAmbrDlSchSwitch(UeAmbrDlSchSwitch),

EpfEnhancedSwitch(EpfEnhancedSwitch),

AperiodicCqiTrigOptSwitch(AperiodicCqiTrigOptS-

witch), VoipTbsBasedMcsSelS-

witch(VoipTbsBasedMcsSelSwitch),

PagingInterfRandSwitch(PagingInterfRandSwitch),

DlSingleUsrMcsOptSwitch(DlSingleUsrMcsOptS-

witch), SubframeSchDiffSwitch(SubframeSchDiffS-

witch), TailPackagePriSchS-

witch(TailPackagePriSchSwitch),

UeSigMcsEnhanceSwitch(UeSigMcsEnhanceSwitch),

FreqSelJudgeIgnorDopplerSwitch(FreqSelJudgeIgnor-DopplerSwitch),

SIB1InterfRandSwitch(SIB1InterfRandSwitch)

Unit: None

Actual Value Range: FreqSelSwitch,

ServiceDiffSwitch, SpsSchSwitch,

MBSFNShutDownSwitch, NonGbrBundlingSwitch,

EnAperiodicCqiRptSwitch, DlMbrCtrlSwitch,

MbrDlSchSwitch, UeAmbrDlSchSwitch,

EpfEnhancedSwitch, AperiodicCqiTrigOptSwitch,

VoipTbsBasedMcsSelSwitch, PagingInterfRand-

Switch, DlSingleUsrMcsOptSwitch,

SubframeSchDiffSwitch, TailPackagePriSchSwitch,

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59



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

UeSigMcsEnhanceSwitch, FreqSelJudgeIgnorDop-

plerSwitch, SIB1InterfRandSwitch

Default Value: FreqSelSwitch:Off,

ServiceDiffSwitch:Off, SpsSchSwitch:Off,

MBSFNShutDownSwitch:Off, NonGbrBundlingS-

witch:Off, EnAperiodicCqiRptSwitch:Off,

DlMbrCtrlSwitch:Off, MbrDlSchSwitch:Off,

UeAmbrDlSchSwitch:Off, EpfEnhancedSwitch:Off,

AperiodicCqiTrigOptSwitch:Off, VoipTbsBasedMcs-

SelSwitch:Off, PagingInterfRandSwitch:Off,

DlSingleUsrMcsOptSwitch:Off, SubframeSchDiffS-

witch:Off, TailPackagePriSchSwitch:Off,

UeSigMcsEnhanceSwitch:Off, FreqSelJudgeIgnor-DopplerSwitch:Off, SIB1InterfRandSwitch:On

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60



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

CellAlg

oSwitch

UlSchS

witch

MOD

CELLA

LGOSW

ITCH

LST

CELLA

LGOSW

ITCH

LOFD-0

01016 /

TDLOF

D-00101

6

LOFD-0

01048 /

TDLOF

D-00104

8

LOFD-0

0101502

/

TDLOF

D-00101

502

TDLBF

D-00202

5

LBFD-0

70102 /

TDLBF

D-07010

2

LOFD-0

01002

LOFD-0

01058

LBFD-0

01006

VoIP

Semi-

persisten

t

Scheduli

ng

TTI

Bundlin

g

Dynami

c

Scheduli

ng

Basic

Scheduli

ngTDL

OFD-07

0224:Sc

heduling

Based

on Max

Bit Rate

MBR>G

BR Configu

ration

UL 2x2

MU-

MIMO

UL 2x4

MU-

MIMO

AMC

Meaning:

This parameter indicates the switches related to uplink

(UL) scheduling in the cell. The switches are used to

enable or disable specific UL scheduling functions.

SpsSchSwitch: Indicates the switch used to enable or

disable semi-persistent scheduling during talk spurts

of VoIP services. If this switch is on, semi-persistent

scheduling is applied during talk spurts of VoIP

services. If this switch is off, dynamic scheduling is

applied during talk spurts of VoIP services.

SinrAdjustSwitch: Indicates whether to adjust the

measured signal to interference plus noise ratio(SINR) based on ACK/NACK in UL hybrid automatic

repeat request (HARQ) processes.

PreAllocationSwitch: Indicates whether to enable

preallocation in the uplink. When this switch is on: (1)

If SmartPreAllocationSwitch is off and a UE is in the

discontinuous reception (DRX) state, preallocation is

disabled for the UE in the uplink; (2) If

SmartPreAllocationSwitch is off and the UE is not in

the DRX state, preallocation is enabled for the UE in

the uplink; (3) If SmartPreAllocationSwitch is on and

the SmartPreAllocationDuration parameter value isgreater than 0, smart preallocation is enabled for the

UE in the uplink; (4) If SmartPreAllocationSwitch is

on and the SmartPreAllocationDuration parameter

value is 0, preallocation is disabled for the UE in the

uplink. If this switch is off, preallocation is disabled

for the UE in the uplink. If bearer-level preallocation

or bearer-level smart preallocation is enabled for a UE

with a QCI class, cell-level preallocation and cell-

level smart preallocation do not apply to UEs with the

QCI.

UlVmimoSwitch: Indicates whether to enable multi-user MIMO (MU-MIMO) in the UL. If this switch is

on, the eNodeB performs MU-MIMO pairing among

UEs based on related principles. UEs forming a pair

transmit data using the same time-frequency

resources, which improves system throughput and

spectral efficiency.

TtiBundlingSwitch: Indicates whether to enable

transmission time interval (TTI) bundling. If TTI

bundling is enabled, more transmission opportunities

are available to UEs within the delay budget for VoIP

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61



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

services on the Uu interface, thereby improving uplink

coverage.

ImIcSwitch: Indicates whether to enable the

intermodulation interference (IM) cancellation for

UEs. When data is transmitted in both uplink and

downlink, two IM components are generated

symmetrically beside the Direct Current (DC)

subcarrier on the downlink receive channel due to

interference from uplink radio signals. If this switch is

on, IM component elimination is performed on UEs.

If this switch is off, IM component elimination is not

performed on UEs. This switch applies only to FDD

cells working in frequency band 20.

SmartPreAllocationSwitch: Indicates whether to

enable uplink smart preallocation when preallocation

is enabled (by turning on PreAllocationSwitch). If

both PreAllocationSwitch and SmartPreAllocationS-

witch are on and SmartPreAllocationDuration is set to

a value greater than 0, uplink smart preallocation is

enabled; otherwise, uplink smart preallocation is

disabled.

PuschDtxSwitch: Indicates whether the eNodeB uses

the physical uplink shared channel (PUSCH)discontinuous transmission (DTX) detection result

during UL scheduling. In an LTE FDD cell, if this

switch is on, based on the PUSCH DTX detection

result, the eNodeB determines whether to perform

adaptive retransmission during UL scheduling and

also adjusts the control channel element (CCE)

aggregation level of the physical downlink control

channel (PDCCH) carrying downlink control

information (DCI) format 0. If an FDD cell is

established on an LBBPc, this switch takes effect only

when the cell uses less than four RX antennas and

normal cyclic prefix (CP) in the uplink and theSrsCfgInd parameter in the SRSCfg MO is set to

BOOLEAN_TRUE. Note that the LBBPc does not

support PUSCH DTX detection for UEs with MU-

MIMO applied. In an LTE TDD cell, this switch takes

effect only when the cell is configured with subframe

configuration 2 or 5. After this switch takes effect, the

eNodeB adjusts the CCE aggregation level based on

the PUSCH DTX detection results. Note that LTE

TDD cells established on LBBPc boards do not

support PUSCH DTX detection.

UlIblerAdjustSwitch: Indicates whether to enable theuplink initial block error rate (IBLER) adjustment

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62



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

algorithm. If this switch is on, IBLER convergence

target is adjusted to increase the cell edge throughput.

When this switch is on, the recommended

configuration of parameter DopMeasLevel in MO

CellUlschAlgo is CLASS_1.

UlEnhancedFssSwitch: Indicates whether to enable

uplink load-based enhanced frequency selection. This

switch applies only to FDD cells.

UlIicsAlgoSwitch: Indicates whether to enable the UL

IICS algorithm. If this switch is on, interference can

be reduced based on accurate detection of user

attributes and resource scheduling coordination,thereby increasing the cell edge throughput. This

switch applies only to LTE TDD networks.

UlEnhancedSrSchSwitch: Indicates whether uplink re-

scheduling is performed only when the On Duration

timer for the DRX long cycle starts. Uplink re-

scheduling is required if the number of HARQ

retransmissions for a scheduling request (SR) reaches

the maximum value but the scheduling still fails. If

this switch is on, uplink re-scheduling is performed

only when the On Duration timer for the DRX long

cycle starts. If this switch is off, uplink re-schedulingis performed immediately when the number of HARQ

retransmissions for SR reaches the maximum value

but the scheduling still fails. It is recommended that

the switch be turned on in live networks.

SchedulerCtrlPowerSwitch: Indicates whether the

uplink scheduler performs scheduling without

considering power control restrictions. If this switch is

on, the uplink scheduler performs scheduling without

considering power control restrictions, which ensures

full utilization of the transmit power for all UEs. If

this switch is off, the uplink scheduler considers power control restrictions while performing

scheduling, which prevents full utilization of the

transmit power for UEs at far or medium distances

from the cell center.

UlMinGbrSwitch: Indicates whether to enable uplink

minimum guaranteed bit rate (GBR). If this switch is

on, the minimum GBR of non-GBR services is

ensured by increasing the scheduling priority of UEs

whose non-GBR service rates are lower than the

minimum GBR of GBR services.

UlMbrCtrlSwitch: Indicates whether to enable uplink scheduling based on the maximum bit rate (MBR) and

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MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

guaranteed bit rate (GBR) on the GBR bearer. If this

switch is on, the eNodeB performs uplink scheduling

on GBR bearers based on the MBR and GBR. If this

switch is off, the eNodeB performs uplink scheduling

on GBR bearers based only on the GBR.

MbrUlSchSwitch: Indicates whether the eNodeB

performs uplink scheduling based on MBR. If this

switch is on, the eNodeB prioritizes UEs based on the

MBRs during uplink scheduling. This parameter

applies only to LTE TDD cells.

UeAmbrUlSchSwitch: Indicates whether the eNodeB

performs uplink scheduling based on the aggregatemaximum bit rate (AMBR) of UEs. If this switch is

on, the eNodeB prioritizes UEs based on the AMBRs

during uplink scheduling. This parameter applies only

to LTE TDD cells.

UlEnhancedDopplerSwitch: Indicates whether to

enable enhanced uplink scheduling based on mobility

speed. If this switch is on, enhanced uplink scheduling

based on mobility speed is enabled. If this switch is

on, the eNodeB determines whether a UE is a low-

mobility UE based on the Doppler measurement in the

physical layer, and then improves uplink frequencyselective scheduling performance for low-mobility

UEs. If this switch is off, enhanced uplink scheduling

based on mobility speed is disabled. This switch takes

effect only when the UlEnhancedDopplerSwitch

parameter is set to CLASS_1. This switch does not

take effect on cells established on an LBBPc.

UlRaUserSchOptSw: Indicates whether the eNodeB

raises the scheduling priority of UEs sending uplink

access signaling, including MSG5 and the RRC

Connection Reconfiguration Complete message. If

this switch is on, the eNodeB raises the scheduling priority of UEs sending uplink access signaling. If this

switch is off, the eNodeB does not raise the

scheduling priority of UEs sending uplink access

signaling.

UlLast2RetransSchOptSwitch: Indicates whether to

enable optimization on the scheduling policy for the

last two retransmissions. If this switch is on,

optimization on the scheduling policy for the last two

retransmissions is enabled. If the UE transmit power is

not limited, adaptive retransmission is used and the

number of RBs increases in the last two

retransmissions to increase the receive success rate of

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64



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

the last two retransmissions and decrease uplink

RBLER. If this switch is off, optimization on the

scheduling policy for the last two retransmissions is

disabled. This switch does not apply to LTE TDD

cells.

UlInterfFssSwitch: Indicates whether to enable

interference-based uplink frequency-selective

scheduling. This switch applies only to LTE FDD

networks.

UlSmallRBSpectralEffOptSw: Indicates whether to

enable spectral efficiency optimization on uplink

small RBs. If this switch is on, the optimization isenabled, thereby ensuring that the transmission block

size calculated based on optimized spectral efficiency

is not less than the traffic volume needs to be

scheduled. If this switch is off, the optimization is

disabled.

PuschUsePucchRbSwitch: Indicates whether PUCCH

RBs can be occupied by the PUSCH. In scenarios

with a single user, if this switch is on, PUCCH RBs

can be occupied by the PUSCH. If this switch is off,

PUCCH RBs cannot be occupied by the PUSCH. In

scenarios with multiple users, PUCCH RBs cannot beoccupied by the PUSCH no matter whether this switch

is on or off.

PuschDtxSchOptSwitch: If this switch is on, the

eNodeB determines whether to perform adaptive

retransmission during UL scheduling based on the

PUSCH DTX detection result. This switch takes effect

only when subframe configuration 2 or 5 is used. If a

TDD cell is established on an LBBPc, PUSCH DTX

detection is not supported. This switch applies only to

LTE TDD cells.

PrachRbReuseSwitch:If this switch is on, the PUSCHand PRACH transmissions can use the same resource.

If this switch is off, the PUSCH and PRACH

transmissions cannot use the same resource. This

switch applies only to LTE TDD cells.

ULFSSAlgoswitch:If this switch is off, uplink

frequency-selective scheduling is disabled. If this

switch is on, uplink frequency-selective scheduling is

enabled. This switch is invalid if the HighSpeedFlag

parameter in the Cell MO is set to

HIGH_SPEED(High speed cell flag) or

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65



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

ULTRA_HIGH_SPEED(Ultra high speed cell flag),

that is, uplink frequency-selective scheduling is

disabled in high speed and ultra high speed mobility

conditions. This switch applies only to LTE TDD

cells.

SrSchDataAdptSw: Indicates whether to enable data

volume adaption in SR scheduling. Data volume

adaption in SR scheduling is enabled only when this

option is selected.

UlFssUserThdStSwitch: UlFssUserThdStSwitch:

Indicates whether to enable the optimization policy on

the UE number threshold for frequency selectivescheduling. The optimization policy is enabled only

when this option is selected.

GUI Value Range: SpsSchSwitch(SpsSchSwitch),

SinrAdjustSwitch(SinrAdjustSwitch),

PreAllocationSwitch(PreAllocationSwitch),

UlVmimoSwitch(UlVmimoSwitch),

TtiBundlingSwitch(TtiBundlingSwitch),

ImIcSwitch(ImIcSwitch), SmartPreAllocationS-

witch(SmartPreAllocationSwitch),

PuschDtxSwitch(PuschDtxSwitch),

UlIblerAdjustSwitch(UlIblerAdjustSwitch),

UlEnhancedFssSwitch(UlEnhancedFssSwitch),

UlEnhancedSrSchSwitch(UlEnhancedSrSchSwitch),

SchedulerCtrlPowerSwitch(SchedulerCtrlPowerS-

witch), UlIicsAlgoSwitch(UlIicsAlgoSwitch),

UlMinGbrSwitch(UlMinGbrSwitch),

UlMbrCtrlSwitch(UlMbrCtrlSwitch),

MbrUlSchSwitch(MbrUlSchSwitch),

UeAmbrUlSchSwitch(UeAmbrUlSchSwitch),

UlEnhancedDopplerSwitch(UlEnhancedDopplerS-

witch), UlRaUserSchOptSw(UlRaUserSchOptSw),

UlLast2RetransSchOptSwitch(UlLast2RetransSchOpt

Switch), UlInterfFssSwitch(UlInterfFssSwitch),UlSmallRBSpectralEffOptSw(UlSmallRBSpectralEf-

ficiencyOptSw), PuschUsePucchRbS-

witch(PuschUsePucchRbSwitch), PuschDtxSchOptS-

witch(PuschDtxSchOptSwitch),

ULFSSAlgoSwitch(ULFSSAlgoSwitch),

PrachRbReuseSwitch(PrachRbReuseSwitch),

SrSchDataAdptSw(SrSchDataAdptSw),

UlFssUserThdStSwitch(UlFssUserThdStSwitch)

Unit: None

Actual Value Range: SpsSchSwitch,

SinrAdjustSwitch, PreAllocationSwitch,

UlVmimoSwitch, TtiBundlingSwitch, ImIcSwitch,

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66



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

SmartPreAllocationSwitch, PuschDtxSwitch,

UlIblerAdjustSwitch, UlEnhancedFssSwitch,

UlEnhancedSrSchSwitch, SchedulerCtrlPowerSwitch,

UlIicsAlgoSwitch, UlMinGbrSwitch,

UlMbrCtrlSwitch, MbrUlSchSwitch,

UeAmbrUlSchSwitch, UlEnhancedDopplerSwitch,

UlRaUserSchOptSw, UlLast2RetransSchOptSwitch,

UlInterfFssSwitch, UlSmallRBSpectralEffOptSw,

PuschUsePucchRbSwitch, PuschDtxSchOptSwitch,

ULFSSAlgoSwitch, PrachRbReuseSwitch,

SrSchDataAdptSw, UlFssUserThdStSwitch

Default Value: SpsSchSwitch:Off,

SinrAdjustSwitch:On, PreAllocationSwitch:On,UlVmimoSwitch:Off, TtiBundlingSwitch:Off,

ImIcSwitch:Off, SmartPreAllocationSwitch:Off,

PuschDtxSwitch:On, UlIblerAdjustSwitch:Off,

UlEnhancedFssSwitch:On, UlEnhancedSrSchS-

witch:Off, SchedulerCtrlPowerSwitch:Off,

UlIicsAlgoSwitch:Off, UlMinGbrSwitch:Off,

UlMbrCtrlSwitch:Off, MbrUlSchSwitch:Off,

UeAmbrUlSchSwitch:Off, UlEnhancedDopplerS-

witch:Off, UlRaUserSchOptSw:Off,

UlLast2RetransSchOptSwitch:Off,

UlInterfFssSwitch:Off, UlSmallRBSpectralEf-

fOptSw:Off, PuschUsePucchRbSwitch:Off,PuschDtxSchOptSwitch:Off, ULFSSAlgoSwitch:On,

PrachRbReuseSwitch:Off, SrSchDataAdptSw:On,

UlFssUserThdStSwitch:Off

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67



MO Parameter ID

MMLCommand

FeatureID

FeatureName

Description

CellPdc

chAlgo

PdcchSy

mNumS

witch

MOD

CELLP

DCCHA

LGO

LST

CELLP

DCCHA

LGO

LBFD-0

02003 /

TDLBF

D-00200

3

Physical

Channel

Manage

ment

Meaning: Indicates the switch used to enable or

disable dynamic adjustment on the number of

orthogonal frequency division multiplexing (OFDM)

symbols occupied by the physical downlink control

channel (PDCCH). If this parameter is set to OFF, the

number of OFDM symbols occupied by the PDCCH

is fixed and cannot be dynamically adjusted. If this

parameter is set to ON, the number of OFDM symbols

occupied by the PDCCH is dynamically adjusted

based on the required number of PDCCH control

channel elements (CCEs). If this parameter is set to

ECFIADAPTIONON, the number of OFDM symbols

occupied by the PDCCH is dynamically adjusted based on the cell downlink throughput, and the

adjustment performance is the best among the three

methods.

GUI Value Range: OFF(Off), ON(On),

ECFIADAPTIONON(Enhanced CFI Adaption On)

Unit: None

Actual Value Range: OFF, ON, ECFIADAPTIONON

Default Value: ON(On)

CellULI

cicMcPara

A3Offse

t

MOD

CELLULICICM

CPARA

LST

CELLU

LICICM

CPARA

LBFD-0

0202202/

TDLBF

D-00202

202

LOFD-0

0101402

Uplink

StaticInter-

Cell

Interfere

nce

Coordin

ation

Uplink

Dynami

c Inter-

Cell

Interfere

nce

Coordin

ation

Meaning: Indicates the offset for the UL ICIC

measurement event. If this parameter is set to a largevalue, the signal quality of the neighboring cell must

be significantly better than that of the serving cell

before a UL ICIC measurement event is triggered. For

details, see 3GPP TS 36.331.


Unit: 0.5dB


Default Value: -10

eRAN




68



8 Counters

Table 8-1 Counters

Counter ID Counter Name CounterDescription

Feature ID Feature Name

1526727380 L.Traffic.CEU.Avg Average number of

downlink cell edge

users (CEUs) in a

cell

Multi-mode: None

GSM: None

UMTS: None

LTE:

LBFD-002007

TDLBFD-002007

LOFD-00101401

LBFD-00202201

TDLBFD-0020220

1

LOFD-060201

TDLOFD-060201

RRC Connection

Management

RRC Connection

Management

Downlink Dynamic

Inter-Cell

Interference

Coordination

Downlink Static

Inter-Cell

Interference

Coordination

Downlink Static

Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference

CoordinationAdaptive Inter-Cell

Interference

Coordination

eRAN

Adaptive ICIC Feature Parameter Description 8 Counters



69





1526727381 L.Traffic.CEU.Max Maximum number

of downlink cell

edge users (CEUs)

in a cell

Multi-mode: None

GSM: NoneUMTS: None

LTE:

LBFD-002007

TDLBFD-002007

LOFD-00101401

LBFD-00202201

TDLBFD-0020220

1

LOFD-060201

TDLOFD-060201

RRC Connection

Management

RRC Connection

Management

Downlink Dynamic

Inter-Cell

Interference

Coordination

Downlink Static

Inter-Cell

Interference

Coordination

Downlink StaticInter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference

Coordination

1526727412 L.ChMeas.PUSCH.

MCS.0

Number of times

MCS index 0 is

scheduled on the

PUSCH

Multi-mode: None

GSM: None

UMTS: None

LTE:

LBFD-002025

LBFD-001005

TDLBFD-002025

TDLBFD-001005

Basic Scheduling

Modulation: DL/UL

QPSK, DL/UL

16QAM, DL

64QAM

Basic Scheduling

Modulation: DL/UL

QPSK, DL/UL

16QAM, DL

64QAM

1526727443 L.ChMeas.PUSCH.

MCS.31

Number of times

MCS index 31 is

scheduled on the

PUSCH

Multi-mode: None

GSM: None

UMTS: None

LTE:

LBFD-002025

TDLBFD-002025

LBFD-001005

TDLBFD-001005

LOFD-001006

TDLOFD-001006

Basic Scheduling

Basic Scheduling

Modulation: DL/UL

QPSK, DL/UL

16QAM, DL

64QAM

Modulation: DL/UL

QPSK, DL/UL

16QAM, DL

64QAM

UL 64QAM

UL 64QAM

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70





1526727444 L.ChMeas.PDSCH.

MCS.0

Number of times

MCS index 0 is

scheduled on the

PDSCH

Multi-mode: None

GSM: NoneUMTS: None

LTE:

LBFD-002025

LBFD-001005

TDLBFD-002025

TDLBFD-001005

Basic Scheduling

Modulation: DL/ULQPSK, DL/UL

16QAM, DL

64QAM

Basic Scheduling

Modulation: DL/UL

QPSK, DL/UL

16QAM, DL

64QAM

1526727475 L.ChMeas.PDSCH.

MCS.31

Number of times

MCS index 31 is

scheduled on the

PDSCH

Multi-mode: None

GSM: NoneUMTS: None

LTE:

LBFD-002025

LBFD-001005

TDLBFD-002025

TDLBFD-001005

Basic Scheduling

Modulation: DL/ULQPSK, DL/UL

16QAM, DL

64QAM

Basic Scheduling

Modulation: DL/UL

QPSK, DL/UL

16QAM, DL

64QAM

1526728261 L.Thrp.bits.DL Total downlink

traffic volume for

PDCP SDUs in acell

Multi-mode: None

GSM: None

UMTS: None

LTE:

LBFD-002008

TDLBFD-002008

LBFD-002025

TDLBFD-002025

Radio Bearer

Management

Radio Bearer

Management

Basic Scheduling

Basic Scheduling

1526728262 L.Thrp.Time.DL Total transmit

duration of

downlink PDCP

SDUs in a cell

Multi-mode: None

GSM: None

UMTS: NoneLTE:

LBFD-002008

TDLBFD-002008

LBFD-002025

TDLBFD-002025

Radio Bearer

Management

Radio Bearer

Management

Basic Scheduling

Basic Scheduling

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71





1526728473 L.Traffic.ULCEU.A

vg

Average number of

uplink cell edge

users (CEUs) in a

cell

Multi-mode: None

GSM: NoneUMTS: None

LTE:

LBFD-002007

TDLBFD-002007

LOFD-00101402

LBFD-00202202

TDLBFD-0020220

2

LOFD-060201

TDLOFD-060201

RRC Connection

Management

RRC Connection

Management

Uplink Dynamic

Inter-Cell

Interference

Coordination

Uplink Static Inter-

Cell Interference

Coordination


Cell InterferenceCoordination

Adaptive Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference

Coordination

1526728474 L.Traffic.ULCEU.

Max

Maximum number

of uplink cell edge

users (CEUs) in a

cell

Multi-mode: None

GSM: None

UMTS: None

LTE:

LBFD-002007

TDLBFD-002007

LOFD-00101402

LBFD-00202202

TDLBFD-0020220

2

LOFD-060201

TDLOFD-060201

RRC Connection

Management

RRC ConnectionManagement

Uplink Dynamic

Inter-Cell

Interference

Coordination


Cell Interference

Coordination


Cell Interference


Interference

Coordination

Adaptive Inter-Cell

Interference

Coordination

eRAN




72





1526728475 L.Thrp.bits.UL.CE

U

Total bits of uplink

PDCP PDUs

received from

CEUs in a cell

Multi-mode: None

GSM: NoneUMTS: None

LTE:

LBFD-00202202

TDLBFD-0020220

2

LOFD-00101402

LOFD-060201

TDLOFD-060201


Cell Interference

Coordination


Cell Interference

Coordination

Uplink Dynamic

Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference


Interference

Coordination

1526728476 L.Thrp.Time.UL.C

EU

Total duration in

which uplink user

data is received

from CEUs at the

PDCP layer in a

cell

Multi-mode: None

GSM: None

UMTS: None

LTE:

LBFD-00202202

TDLBFD-0020220

2

LOFD-00101402

LOFD-060201

TDLOFD-060201


Cell Interference

Coordination


Cell Interference

Coordination

Uplink Dynamic

Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference

Coordination

eRAN




73





1526728477 L.Thrp.bits.DL.CE

U

Total bits of

downlink PDCP

SDUs sent to CEUs

in a cell

Multi-mode: None

GSM: NoneUMTS: None

LTE:

LBFD-00202201

TDLBFD-0020220

1

LOFD-00101401

LOFD-060201

TDLOFD-060201

Downlink Static

Inter-Cell

Interference

Coordination

Downlink Static

Inter-Cell

Interference

Coordination

Downlink Dynamic

Inter-Cell

Interference

Coordination

Adaptive Inter-CellInterference

Coordination

Adaptive Inter-Cell

Interference

Coordination

1526728478 L.Thrp.Time.DL.C

EU

Total duration in

which downlink

user data is sent to

CEUs at the PDCP

layer in a cell

Multi-mode: None

GSM: None

UMTS: None

LTE:

LBFD-00202201TDLBFD-0020220

1

LOFD-00101401

LOFD-060201

TDLOFD-060201

Downlink Static

Inter-Cell

Interference

Coordination

Downlink Static

Inter-CellInterference

Coordination

Downlink Dynamic

Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference

Coordination

eRAN




74





1526728479 L.ChMeas.PRB.UL

.CEU.Used.Avg

Average number of

PRBs used by

uplink CEUs in a

cell

Multi-mode: None

GSM: NoneUMTS: None

LTE:

LBFD-00202202

TDLBFD-0020220

2

LOFD-00101402

LOFD-060201

TDLOFD-060201


Cell Interference

Coordination


Cell Interference

Coordination

Uplink Dynamic

Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference


Interference

Coordination

1526728480 L.ChMeas.PRB.DL

.CEU.Used.Avg

Average number of

PRBs used by

downlink CEUs in a

cell

Multi-mode: None

GSM: None

UMTS: None

LTE:

LBFD-00202201

TDLBFD-0020220

1

LOFD-00101401

LOFD-060201

TDLOFD-060201

Downlink Static

Inter-Cell

Interference

Coordination

Downlink Static

Inter-Cell

Interference

Coordination

Downlink Dynamic

Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference

Coordination

Adaptive Inter-Cell

Interference

Coordination

1526737747 L.Traffic.User.CEU

.DL.AICIC.Avg

Number of UEs

identified as CEUs

in downlink

adaptive ICIC

Multi-mode: None

GSM: None

UMTS: None

LTE:

LBFD-002002

TDLBFD-002002

Transport Channel

Management

Transport Channel

Management

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75





1526737748 L.ChMeas.PRB.DL

.AICIC.CEB.Avg

Number of PRBs of

the downlink edge

band configured for

the cell in adaptive

ICIC

Multi-mode: None

GSM: NoneUMTS: None

LTE:

LBFD-002002

TDLBFD-002002

Transport Channel

Management

Transport Channel

Management

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76



9 Glossary

For the acronyms, abbreviations, terms, and definitions, see Glossary.

eRAN

Adaptive ICIC Feature Parameter Description 9 Glossary



77



10 Reference Documents

1. 3GPP TS 36.213, "Physical layer procedures"

2. 3GPP TS 36.331, "RRC Protocol Specification"

3. ICIC Feature Parameter Description

4. Power Control Feature Parameter Description

eRAN

Adaptive ICIC Feature Parameter Description 10 Reference Documents