35pt contents 32pt 2. hsdpa introduction 3. hsupa … · 35pt contents 32pt 2. hsdpa introduction...

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Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved.

Contents

1. HSPA & HSPA+ Overview

2. HSDPA Introduction

3. HSUPA Introduction

4. HSPA+ Introduction

Page58

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All the HSPA+ Features in RAN11 and

RAN12

Page59

3GPP Version HSPA+ Technology RAN Version

Release 7 Downlink Enhanced L2 RAN 11.0

2x2 MIMO RAN 11.0

Downlink 64QAM RAN 11.0

Downlink Enhanced CELL_FACH

Operation

RAN 11.0

Continuous packet connectivity (CPC) RAN 11.0

Uplink 16QAM RAN 12.0

Release 8 Uplink Enhanced L2 RAN 12.0

Downlink MIMO+64QAM RAN 12.0

DC-HSDPA RAN 12.0

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Copyright © 2014 Huawei Technologies Co., Ltd. All rights reserved. Page60

HSPA+ Introduced in Huawei Product

HSPA+ Technology RAN Version

Downlink DC-HSDPA+MIMO RAN 13.0

Traffic-Based Activation and Deactivation of

Secondary Carrier in Dual-Carrier HSDPA

RAN 13.0

E-DPCCH Boosting RAN 13.0

Enhanced Uplink CELL_FACH RAN 13.0

DC-HSUPA RAN 14.0

DB-HSDPA+MIMO+64QAM RAN 15.0

4C+MIMO+64QAM RAN 15.0

Flexible DC/DB-HSDPA RAN 15.0

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Modulation Modes for HSPA+

Three modulation modes can be used for HS-PDSCH

Page61

64QAM allows more bits per

Symbol to be transmitted Higher peak rate achieved in

good channel condition

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What is MIMO?

MIMO: Multiple Input Multiple Output

Page62

Transmitter Receiver

Wireless Channel …

…

N M

Channel Condition Feedback

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What can MIMO provide?

2×2 MIMO can increase peak data rate to 28Mbps

Page63

Transmitter Receiver

Wireless Channel

Channel Condition Feedback

Data Stream 1

Data Stream 2

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Enhanced CELL_FACH Operation

Enhanced CELL_FACH operation

Enhanced CELL_FACH operation allows the use of HSDPA

technologies for the UEs in the CELL_FACH, CELL_PCH, and

URA_PCH state. The purpose is to increase the peak rates in these

states and reduce the signaling transmission delay during service

setup or state transition with the result improving the user

experience.

Page64

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DL Enhanced L2

This feature allows Uu L2 to use flexible PDU size on RLC layer

and segmentation on MAC layer. The feature prevents the L2

from becoming the bottleneck of higher Uu rate increased by

MIMO and 64QAM.

DL enhanced L2 is the precondition of MIMO, 64QAM and

enhanced CELL_FACH operation.

Page65

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Enhanced L2

Enhanced L2 allows flexible PDU sizes at the RLC layer and

segmentation at the MAC layer on the Uu interface. The

feature improves the transmission efficiency.

Page66

336bits 656bits

fixed RLC PDU size

flexible RLC PDU size

Before

With Enhanced L2

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CPC (Continuous Packet Connectivity)

CPC allows the uplink and downlink transmissions to take place

at periodic intervals. This feature reduces the transmitted

power (and thus increases the UE battery life) because the UE

does not have to monitor and transmit overhead channels

every TTl. This reduction in the transmitted power also helps to

increase the uplink capacity by decreasing the total interference.

This improvement is especially significant when there are users

who transmit data infrequently as VoIP users.

CPC feature consists of DL DRX, UL DTX and HS-SCCH less

operation.

Page67

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Release 7 HSPA+ Capable UE Categories

Page68

HS-DSCH

category

Supported Modulations

Without MIMO


with MIMO

Category 13

QPSK, 16QAM, and 64QAM None Category 14

Category 15

QPSK and 16QAM QPSK and 16QAM Category 16

Category 17

QPSK, 16QAM, and 64QAM QPSK and 16QAM Category 18

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Downlink MIMO with 64QAM

In RAN12 downlink MIMO and 64QAM can be used

simultaneously by one UE to receive HSDPA data. With this

technology, the theoretical downlink peak rate can reach 42

Mbps.

Page69

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UE Categories for MIMO with 64QAM

UE categories 19 and 20 support MIMO with 64QAM.

Page70

HS-DSCH

category

Maximum

number of

HS-DSCH

codes

received

Minimum

inter-TTI

interval

Maximum

number of bits

of an HS-DSCH

transport block

received within

an HS-DSCH TTI

Total

number

of soft

channel

bits

Supported

modulatio

ns without

MIMO

operation

Supported

modulations

simultaneous

with MIMO

operation

Category

19 15 1 35280 518400

QPSK, 16QAM, 64QAM Category

20 15 1 42192 518400

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Prerequisites for MIMO with 64QAM

Only PS streaming service, PS interactive service or PS

background service can be carried by MIMO, 64QAM or MIMO

with 64QAM.

The cell supports enhanced L2.

UE supports MIMO with 64QAM.

The service is carried by HSDPA.

Page71

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What is DC-HSDPA (Dual-cell HSDPA)?

DC-HSDPA allows a UE to set up HSDPA connections with two

inter-frequency time-synchronous cells that have the same

coverage. Theoretically, DC-HSDPA with 64QAM can provide a

peak rate of 42Mbps in the downlink.

Page72

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DC-HSDPA Basic Concepts

Anchor carrier: a carrier that carries all the channels, including uplink

dedicated channels, of a UE. Each UE has only one anchor carrier.

Supplementary carrier: a carrier that carries only three types of

downlink channel of a UE. Each UE has only one supplementary

carrier. The three types of downlink channel are as follows:

HS-SCCH

HS-PDSCH

P-CPICH

Page73

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Why DC-HSDPA is used?

DC-HSDPA can improve downlink data rate. The theoretical

peak data rate with DC-HSDPA is 42Mbps.

DC-HSDPA can reduce time delay for some services such as

HTTP.

DC-HSDPA can improve the data rate in cell edge and improve

downlink coverage.

DC-HSDPA can improve the system capacity when downlink

load is unbalanced between different frequencies. The gain is

very obvious in cell edge.

Page74

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UE categories for DC-HSDPA

UE categories 21, 22, 23 and 24 support DC-HSDPA.

Page75

HS-DSCH

category

Maximum

number of

HS-DSCH

codes

received

Minimum

inter-TTI

interval

Maximum

number of bits

of an HS-DSCH

transport

block received

within

an HS-DSCH

TTI

Total

number

of soft

channel

bits

Supported

modulations

with dual

cell

operation

Category 21 15 1 23370 345600 QPSK,

16QAM Category 22 15 1 27952 345600

Category 23 15 1 35280 518400 QPSK,

16QAM,

64QAM Category 24 15 1 42192 518400

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Prerequisites for DC-HSDPA

Only PS streaming service, PS interactive service or PS

background service can be carried by DC-HSDPA.

The cell supports downlink enhanced L2.

UE supports DC-HSDPA.

The service is carried by HSDPA.

Page76

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Uplink Enhanced L2

Uplink enhanced L2 allows flexible PDU sizes at the RLC layer

and segmentation at the MAC layer on the Uu interface. The

feature improves the uplink transmission efficiency.

Page77

336bits 656bits

uplink fixed RLC PDU size

uplink flexible RLC PDU size

Before R8

R8

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Uplink 16QAM Introduction

Uplink 16QAM modulates 4 bits/symbol whereas the original

QPSK modulates only 2 bits/symbol. As a result, it doubles the

HSUPA data rate to 11.5Mbps at the physical layer.

Page78

HSUPA 16QAM allows more bits per

Symbol to be transmitted

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Technical Characteristics

In the case of 16QAM, a gain is achieved only when the signal-

to-noise ratio (SNR) is high. Therefore, a good channel

environment is required, for example, a cell with good indoor

coverage or micro coverage.

In comparison with QPSK, a gain is achieved only when 16QAM

is used after the UL rate reaches 4Mbps. Therefore, the UL

16QAM is configured only after the maximum bit rate (MBR)

exceeds 4Mbps.

Page79

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UE categories for UL 16QAM

UE category 7 supports UL 16QAM.

Page80

E-DCH

category

Maxim

um

numbe

r of E-

DCH

codes

transm

itted

Minim

um

spread

ing

factor

Support

for 10

and 2 ms

TTI EDCH

Maximum number

of bits of an E-

DCH transport

block transmitted

within a 10 ms E-

DCH TTI

Maximum number

of bits of an E-

DCH transport

block transmitted

within a 2 ms E-

DCH TTI

Category 7 4 SF2 10ms and

2 ms TTI

20000 22996

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DC-HSDPA+MIMO

DC-HSDPA+MIMO (3GPP R9/ Huawei RAN13)

combines DC-HSDPA and MIMO. It can provides:

Higher peak date rate

Higher system capacity

Better coverage for cell-edge users

Lower time delay

Page81

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5MHz 5MHz

Carrier 1 Carrier 2 f

The two carriers

are adjacent.

Carrier 1

Carrier 2

The two carriers cover

the same area.

The two carriers both

use the multi-antenna

technology.

Downlink peak rate

up to 84 Mbit/s

Data is sent to the UE

simultaneously over two

adjacent carriers in MIMO

mode.

Main Idea of DC-HSDPA+MIMO

Page82

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Application Scenario of DC-HSDPA+MIMO

DC-HSDPA+MIMO brings the performance gains of DC-HSDPA and

MIMO. In all scenarios, DC-HSDPA sends data simultaneously over dual

carriers, thereby improving the user rate. DC-HSDPA+MIMO applies to

the following scenarios:

WiFi coverage areas and other hot spots, such as airports and hotels

Universities and other enclosed places, such as courtyards, halls, and

restaurants

Stadiums, arts centers, and other surrounded scenarios

Malls, markets, and other densely populated areas

Residential areas where the operator can use the feature as a substitute for

DSL/cables to provide broadband Internet access

Page83

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HS-DSCH

Category

Maximum

Number of HS-

DSCH Codes

TB Size


Simultaneous with Dual

Cell and MIMO

Operation

Category 25 15 23370 QPSK, 16QAM

Category 26 15 27952

Category 27 15 35280 QPSK, 16QAM, 64QAM

Category 28 15 42192

Adaptation Requirements: UE Capability

The following table shows the UE categories supporting DC-

HSDPA+MIMO.

Page84

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Purpose of E-DPCCH Boosting

This feature improves the multipath search and channel

estimation performance during high-speed data transmission.

With this feature the maximum uplink user throughput over

HSUPA increases to 11Mbit/s.

While ensuring QoS, this feature increases the uplink capacity

over HSUPA by minimizing the load overhead on each uplink

channel.

Page85

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Main Idea of E-DPCCH Boosting

Page86

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DC-HSUPA Introduction

DC-HSUPA is a 3GPP defined technology that combines the multi-

carrier technology and HSUPA in the uplink. DC-HSUPA significantly

increases the uplink rate, greatly improving user experience.

Page87

NodeB

UE(Cat8,9)

E-DCH F2

E-DCH F1

Adja

cen

t C

arr

ier

DC-HSUPA

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DC-HSUPA Principles

Page88

DC-HSUPA allows a UE to transmit data simultaneously on two uplink

adjacent carriers that provide the same coverage.

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Improvements

DC-HSUPA has the following improvements compared to SC-HSUPA:

Higher user throughput

Reduced delay of best effort (BE) services

The improvements help operators maintain a competitive edge by

providing a better user experience and higher network service quality.

DC-HSUPA is currently used for high-speed packet switched (PS)

streaming services and BE services.

Page89

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Channel Mapping

In DC-HSUPA operations, two E-DCH transport channels and two HS-

DSCH transport channels need to be configured for the UE because

DC-HSUPA requires that DC-HSDPA be used in the downlink.

Page90

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UE Categories

In 3GPP Release 9, E-DCH categories 8 and 9 are introduced to

support DC-HSUPA

Page91

Category

Maximum

Number of E-

DCH Codes

Transmitted per

Transport Block

Minimum

Spreading

Factor

Support for

10 and 2 ms

TTI E-DCH

Maximum

Number of Bits

of an E-DCH

Transport Block

Transmitted

Within a 2 ms

E-DCH TTI

High Order

Modulation

Capability of

UE in Dual-

Carrier Mode

Max Bit

Rate

8 4 SF2 2 ms TTI 11484 - 11.5

Mbit/s

9 4 SF2 2 ms TTI 22996 Uplink

16QAM 23 Mbit/s

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1. DB-HSDPA+MIMO+64QAM

2. 4C+MIMO+64QAM

3. Flexible DC/DB-HSDPA

Page92

HSPA+ in 3GPP R10/ Huawei RAN15

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DB-HSDPA

The DB-HSDPA feature enables a UE to simultaneously establish

HSDPA connections in two inter-band co-coverage cells. The two cells

form a DB-HSDPA cell group

Page93

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DB-HSDPA Cell Group

The two cells in a DB-HSDPA cell group must meet all of

the following requirements:

Page94

Restrictions

1

The two cells operate in different frequency bands and the

bandwidth does not exceed 5 MHz. The combination of the

frequency bands must comply with those listed in next page

2 The two cells belong to the same sector of a NodeB and have the

same coverage

3 The two cells are in the same downlink resource group of a NodeB

4 The two cells have the same time offset (specified by the TCELL

parameter)

5 The two cells support HSDPA and Downlink Enhanced L2

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DB-HSDPA Frequency Bands

Page95

DB-HSDPA

Configuration

Combination of Frequency

Bands

Uplink

Frequency

Band

Downlink

Frequency

Band

1 I + VIII (2100 MHz + 900 MHz) I or VIII I and VIII

2 II + IV (1900 MHz + AWS) II or IV II and IV

3 I + V (2100 MHz + 850 MHz) I or V I and V

4 I + XI (2100 MHz + 1500 MHz) I or XI I and XI

5 II + V (1900 MHz + 850 MHz) II or V II and V

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Benefits of DB-HSDPA

Support dual band

Increase single-user throughput

Page96

Single-user

28 Mbit/s without 64QAM

42 Mbit/s with 64QAM

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DB-HSDPA + MIMO

In RAN15.0, the DB-HSDPA+MIMO feature supports the

following configurations:

Only one carrier in a DB-HSDPA cell group is configured to support

MIMO. The theoretical peak rate of this configuration is 63 Mbit/s

Both carriers in a DB-HSDPA cell group are configured to support

MIMO. The theoretical peak rate of this configuration is 84 Mbit/s

Page97

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Benefits of DB-HSDPA + MIMO

Increased single-user peak rate

Compare with DB-HSDPA or single carrier MIMO, DB-HSDPA +

MIMO increase single-user peak rate

Without 64QAM: from 28 Mbit/s to 56 Mbit/s

With 64QAM: from 42 Mbit/s to 84 Mbit/s

Increased cell capacity

According to simulation results, system throughput is increased by

about 10%-20%

Page98

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4C-HSDPA+MIMO

The basic principles of 4C-HSDPA+MIMO are the same as those of 4C-

HSDPA

4C-HSDPA+MIMO allows a combination of 4C-HSDPA and

MIMO+64QAM. 4C-HSDPA+MIMO uses a maximum of four carriers

enabled with MIMO+64QAM for the HSDPA transmission of a UE,

which increases the UE data rate and system resource utilization

Page99

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Combination of Frequency Bands and

Frequencies

3GPP limits on the frequency bands and frequencies that can

be used by 4C-HSDPA

Page100

4C-HSDPA Configuration

in Single-Band Scenario Operating Band

Number of Downlink

Carriers

I-3 I 3

4C-HSDPA configuration in single-band scenarios

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Combination of Frequency Bands and

Frequencies (Cont.)

Page101

4C-HSDPA

Configuration in

Dualband

Scenarios

Uplink

Band

Downlink

Band A

Number of

Downlink

Carriers in

Band A

Downlink

Band B

Number of

Downlink

Carriers in

Band B

I-2-VIII-1 I or VIII I 2 VIII 1

I-3-VIII-1 I or VIII I 3 VIII 1

II-1-IV-2 II or IV II 1 IV 2



I-1-V-2 I or V I 1 V 2

I-2-V-1 I or V I 2 V 1

4C-HSDPA configuration in dualband scenarios

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Primary and Secondary Cells

A 4C-HSDPA UE has a maximum of four serving cells

Page102

NodeB

F 1

F 2

UE

F 3

F 4 Secondary cell 3rd

Secondary cell 2nd

Secondary cell 1st

Primary cell Band A

Band B

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Multi-Carrier Cell Group

4C-HSDPA requires three or four inter-frequency co-coverage

cells. These cells are configured as a multi-carrier cell group on

the NodeB side

A multi-carrier cell group must meet the following conditions:

One cell can belong to only one multi-carrier cell group

A multi-carrier cell group consists of a maximum of four cells

Page103

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Requirements for 4C-HSDPA Cells

4C-HSDPA cells in a multi-carrier cell group must meet all of the

following conditions:

They must belong to the same sector of a NodeB

They must have the same time offset (specified by the Tcell

parameter)

One cell can belong to only one multi-carrier cell group

Page104

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4C-HSDPA+MIMO Cells

4C-HSDPA+MIMO cells have 4C-HSDPA and MIMO enabled.

When a UE uses a 4C-HSDPA+MIMO RB, the UE uses MIMO

only in the 4C-HSDPA cell that has MIMO enabled. When

64QAM+MIMO is enabled, the Primary/Secondary common

Pilot (PSP) mode is recommended, that is, a P-CPICH and an S-

CPICH must be configured

Page105

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Channel Mapping

Page106

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CQI Feedback

Relationship between the number and MIMO capability of 4C-

HSDPA cells and the spreading factor used by the HS-DPCCH

Page107

Scenario Spreading Factor Used by the

HS-DPCCH

3C-HSDPA (without MIMO) SF256

3C-HSDPA (with MIMO) SF128

4C-HSDPA (with or without MIMO) SF128

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4C-HSDPA+MIMO RB

4C-HSDPA+MIMO applies to the same types of services as 4C-HSDP

Page108

HSPA+

Technology Cell 1 Cell 2 Cell 3 Cell 4

Peak Downlink Rate

(Mbit/s)

4C-HSDPA+MIMO

4C-HSDPA+MIMO 168

4C-HSDPA+MIMO 4C-HSDPA 147



3C-HSDPA+MIMO

3C-HSDPA+MIMO - 126

3C-HSDPA+MIMO 3C-HSDPA - 105

3C-HSDPA+MIMO 3C-HSDPA - 84

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UE Categories

Page109

HS-DSCH Category 29 30 31 32

Maximum Number of HS-DSCH

Codes Received 15 15 15 15

Minimum Inter-TTI Interval 1 1 1 1

Maximum Number of Bits of an

HS-DSCH Transport Block

Received Within an HS-DSCH TTI 42,192 42,192 42,192 42,192

Total Number of Soft Channel

Bits 777,600 1,555,200 1,036,800 2,073,600

Total Number of Downlink

Carriers 3 3 4 4

Total Number of Downlink

Carriers That Are Configured with

MIMO 0 3 0 4

Supported Modulations Without

MIMO Operation with

Aggregated Carriers

QPSK/16QAM/

64QAM

QPSK/16QAM/

64QAM

QPSK/16QAM/

64QAM

QPSK/16QAM/

64QAM

Supported Modulations with

MIMO Operation and Aggregated

Carriers -

QPSK/16QAM

64QAM -

QPSK/16QAM

64QAM

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Network Impacts

System Capacity

4C-HSDPA slightly increases the cell load in the uplink. The cell load

increase is represented by an increase in the uplink RTWP

4C-HSDPA UEs consume one CE more than SC-HSDPA UEs

A baseband processing board supports more SC-HSDPA UEs than 4C-

HSDPA UEs

Network Performance

Increased single-user downlink throughput

Deteriorated uplink cell edge coverage

Page110

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Requirement of License

The license for 4C-HSDPA has been activated on the NodeB

side

Page111

Feature ID Feature Name License Control Item NE Sales Unit

WRFD-150207 4C-HSDPA 4C-HSDPA (per Cell) NodeB Per Cell

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Example of Cell Group

Example of cell group configuration with and without the

Flexible DC/DB-HSDPA feature

Page112

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Multi-Carrier HSDPA Technologies

Supported

The Flexible DC/DB-HSDPA feature supports the following multi-carrier

HSDPA technologies:

DC-HSDPA or DC-HSDPA+MIMO

DB-HSDPA or DB-HSDPA+MIMO

4C-HSDPA or 4C-HSDPA+MIMO

The Flexible DC/DB-HSDPA feature flexibly allocates different DC-

HSDPA, DB-HSDPA, and 4C-HSDPA groups to different UEs

Page113

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Flexible DC/DB-HSDPA

Example of using the Flexible DC/DB-HSDPA feature and multi-carrier

HSDPA technologies together

Page114

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Cell HSPA+ Capability

Cells in a multi-carrier cell group must have the Flexible DC/DB-HSDPA

feature enabled

If cells in a multi-carrier cell group operate in two different frequency

bands, all the cells in the group must have either the DB-HSDPA or

DB-HSDPA+MIMO feature enabled

In a multi-carrier cell group, cells in the same frequency band must

have either the DC-HSDPA or DC-HSDPA+MIMO feature enabled

Cells that require the 4C-HSDPA feature in a multi-carrier cell group

must have either the 4C-HSDPA or 4C-HSDPA+MIMO feature enabled

Page115

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Benefits

The Flexible DC/DB-HSDPA feature dynamically uses

instantaneous idle resources in a cell, increasing the UE

data rate and system capacity. In the case of three carriers,

this feature increases the UE data rate by about 20%

when UEs are processing burst services

Page116

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Impacts on DC-HSUPA

The Flexible DC/DB-HSDPA feature does not affect the

configuration of DC-HSUPA

Page117

F1

F2

F3

DC-HSUPA

Group

DC-HSDPA

Group

DC-HSDPA

Group

DC-HSDPA

Group

Thank you www.huawei.com

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