6-huawei-challenges opportunities with cdma-lte inter working final

8/8/2019 6-Huawei-Challenges Opportunities With CDMA-LTE Inter Working Final

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HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

2008-5-2

2008.4

Challenges andOpportunities withCDMA/LTEInterworking


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CONTENTS

Opportunities for CDMA operators

Smooth Evolution Solutions

Huawei Overview


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HUAWEI TECHNOLOGIES CO., LTD. Page 3

LTE Vision Business drivers

Global economies of scale

Broad contributions across the industry

International roaming for todays global business partnerships

Technical drivers

Achievable peak rates up to 278 Mbps in 20 MHz and 4x4 MIMO

Much reduced latency capable of supporting commercial VoIP services

Interworking with 1xRTT and HRPD networks for a smooth migration to LTE

Timeline

First clean version of LTE specification is available from Dec. 2007, and will be stable in Dec. 2008

Prototype live demo available today from most tier 1 vendors

2002 2006 201120102008/2009

EV-DO Rev.0DL:2.4Mbps

UL:153.6kbpsIn 1.25MHz

LTE Trial LTECommercial

EV-DO Rev.ADL:3.1Mbps

UL:1.8MbpsIn 1.25MHz


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Key Technologies of LTE

Physical spectrum efficiency Improvement(OFDMA/SC-FDMA/MIMO/Time and space scheduler/Interference

mitigation)

Efficient usage of PHY layer(Always on /short TTI/Efficient MAC Mapping/E-MBMS)

Networking

(Scalable bandwidth/All-IP

/Flat architecture/SON)

Benefit:

Lower CAPEX/OPEX Explore spectrum (including re-

farming) efficiently

Enable more business models

Benefit:

Lower data plan latency

Lower idle->active latency

Higher APP throughput

E-MBMS comparable to DVB-H

Benefit:

DL: 3~4R6 HSDPA average

UL: 2~3R6 HSUPA average

DL: 141Mbps peak (2*2 MIMO)

UL: 50Mbps peak (1*2MIMO)


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CDG Believes LTE will Co-exist with CDMA

One technology fits all approach to meeting todays telecommunicationsrequirements will not hold true in the next generation of mobile broadband

solutions. Rather, operators will match particular applications andservices to the technologies that best suit them.

3G CDMA will remain the leading and most economical platform to delivercore mobile broadband services, and operators will use OFDM-basedsystems such as LTE etc. to complement those services with additionalfeatures and broadband capacity.

The CDMA Development Group (CDG)CTIA WIRELESS 2008LAS VEGASMarch 31, 2008

Verizon Selects LTE as 4G Wireless Broadband Direction

Verizon.com Nov. 29th 2007


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Requirements to Achieve a SmoothMigration to LTE

BSC/RNCBSC/RNC

BSC/RNCBSC/RNC

PDSNPDSN

AGWAGW

Flexible spectrum re-farming

options

Broad portfolio to address a wide

range of deployment scenarios

leveraging multimode equipment on

the ground

Quality of Experience across

access networks through seamless

interworking

Smooth network migration to the

new architecture leveraging

common platforms and open

interfaces

HAHA


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Typical Spectrum Usage for LTE Introduction

Frequency band

AWS (LTE)

Year

2008 2010 2020

CDMA LTE launch All LTE

2009

CDMA 1900M LTE 1900M

CDMA 800M LTE 800M

LTE 700

800M/1900M

CDMA

LTE(10M)

LTE(10M)

800M/1900M

CDMA

700M/AWS

700M/AWS

LTE(5M) CDMA

800M/1900M

Carrier Bandwidth Scalability and Multimode BTS are Critical


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Potential LTE Roll Out StrategiesHot spot /Dense Urban Urban /Sub Urban Rural0 Services

CDMA CDMA CDMA CDMA

LTE

CDMA CDMA CDMA CDMA

LTELTE LTE

Hotspot Coverage:

broadband access,web surfing, nomadic

Macro Coverage:

Mobile Broadband,Real-time services,VoIP

CDMALTELTE LTE Convergence & fixedbroadband services

Micro Micro Micro Femto LTE

Broad and Flexible LTE/SAE Portfolio is a Must Have!

Femto Femto FemtoFemto Femto Femto


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S5

S2a ----

S7 ----

Rx+

LTE/EPC Interworking with 1xEV-DO Rev-A

Network Common Platform and Open InterfacesAllows for Scalability and Flexibility

1xEV-DO Network

--- A10A11 Ra

diusAA

A

A12

Rev-ABTS

Network3GPP2AAA

Server

HSGW

AN/PCF AN-AAA

HA

MIPv4 ---

E-UTRANNetwork

S6a

SGi

EPC

S1-U

S1-MME ---- ---- S11

MME

S-GWP-GW

PCRF

HSS

OperatorsIP

Services /Internet

S7c ----

S101 ----

S103 ----

---- S7aS6c

SWx

STa ----

3GPPAAA

Server

PDSN

Diameter AAA

LTE/

e


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Two Interworking Options Non-optimized inter-working between SAE and HRPD

Longer service interruption time with little impact on HRPD network

Suitable for Best effort service in the initial stage

Optimized interworking between EPS and 1xEV-DO

Minimize the total service interruption time experienced at the UE

source access system

target access system

attach and perform service activation (in the case of E-UTRAN) OR

perform a session configuration or traffic allocation request(HRPD)

leaving the source access system

Data Transfer in target access system


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High-Level Functionalities for Ev-DO/LTEOptimized Interworking

BTS & eNodeB System Information Broadcast,

Measurement Control, HO control, Tunneling proceduresover the air & over core network interfaces, data forwarding

procedure

RNC & MME Tunneling procedures to/from the base stations,

S101 interface and data forwarding bearer establishment

HRGW & Serving GW Establish bearers for data forwarding

procedures over S103 interface

PDN GW Implementation of the data plane anchoring

function for CDMA traffic and the S2a interface


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Seamless Voice Interworking BetweenLTE/1X

Adopt 3GPP2 IMS VCC to anchor all voice call The IWS function to reside in the 1X MSC

S102 extends the tunneling of 1X messages from the MME to IWS 1X call establishment messages is tunneled over the air and S1-MME


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Focus on Innovation, Dedication, Customization and Cost

Experience, Stability, and Support of a Tier-1 Vendor with

70k employees

Fastest Growing Vendor with End-to-End Portfolio

Partnership

Dedication 32k+ R&D engineers

Customized R&D for Customers

Innovation TCO Savings through Technology Innovation

Common Platform across multiple Products

Huawei Overview

$16B contract sales in 2007


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Key Take-Away

LTE offers real business benefits, high value technical

improvements and early availability for CDMA operators.

Flexible broad multimode portfolio and seamless interoperability

are the key factors as CDMA and LTE might co-exist for a long

time

Huawei is a leading player in LTE


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Thank you

www.huawei.com

Copyright2008 Huawei Technologies Co., Ltd. All Rights Reserved.The information contained in this document is for reference purpose only, and is subject to

change or withdrawal according to specific customer requirements and conditions.

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