44380661 6 Huawei Challenges Opportunities With CDMA LTE Inter Working Final

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

2008-5-2

2008.4

Challenges and Opportunities with CDMA/LTE Interworking

CONTENTS

• Opportunities for CDMA operators• Smooth Evolution Solutions• Huawei Overview


LTE VisionBusiness drivers

Global economies of scale

Broad contributions across the industry

International roaming for today’s global business partnerships

Technical driversAchievable 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

TimelineFirst 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 2011…20102008/2009

EV-DO Rev.0DL:2.4Mbps

UL:153.6kbpsIn 1.25MHz

LTE Trial LTECommercial

EV-DO Rev.ADL:3.1MbpsUL:1.8MbpsIn 1.25MHz


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: 3~4×R6 HSDPA average

UL: 2~3×R6 HSUPA average

DL: 141Mbps peak (2*2 MIMO)

UL: 50Mbps peak (1*2MIMO)


CDG Believes LTE will Co-exist with CDMA

“One technology fits all” approach to meeting today’s telecommunications requirements will not hold true in the next generation of mobile broadband solutions. Rather, operators will match particular applications and services to the technologies that best suit them.

3G CDMA will remain the leading and most economical platform to deliver core mobile broadband services, and operators will use OFDM-based systems such as LTE etc. to complement those services with additional features and broadband capacity.

— The CDMA Development Group (CDG)CTIA WIRELESS 2008—LAS VEGAS—March 31, 2008

“Verizon Selects LTE as 4G Wireless Broadband Direction”— Verizon.com – Nov. 29th 2007


Requirements to Achieve a Smooth Migration 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


Typical Spectrum Usage for LTE Introduction

Frequency band

AWS (LTE)

Year

2008 2010 2020CDMA 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


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 & fixed broadband servicesMicro Micro Micro Femto LTE

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

Femto Femto Femto

Femto Femto Femto


S5

S2a ----

S7 ----

Rx+

LTE/EPC Interworking with 1xEV-DO Rev-A Network – Common Platform and Open Interfaces Allows for Scalability and Flexibility

1xEV-DO Network

--- A10’A11’ Radius AAA

A12

Rev-A BTS

Network 3GPP2AAA

Server

HSGW

AN/PCF AN-AAA

HA

MIPv4 ---

E-UTRAN Network

S6a

SGi

EPC

S1-U

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

MME

S-GW P-GW

PCRF

HSS

Operators’IP

Services / Internet

S7c ----

S101 ----

S103 ----

---- S7a S6c

SWx

STa ----

3GPPAAA

Server

PDSN

Diameter AAA

LTE/

e


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-DOMinimize 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) ORperform a session configuration or traffic allocation request (HRPD)

leaving the source access system

Data Transfer in target access system


High-Level Functionalities for Ev-DO/LTE Optimized Interworking

BTS & eNodeB – System Information Broadcast, Measurement Control, HO control, Tunneling procedures over the air & over core network interfaces, data forwarding procedureRNC & MME –Tunneling procedures to/from the base stations, S101 interface and data forwarding bearer establishmentHRGW & Serving GW – Establish bearers for data forwarding procedures over S103 interfacePDN GW – Implementation of the data plane anchoring function for CDMA traffic and the S2a interface


Seamless Voice Interworking Between LTE/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


Focus on Innovation, Dedication, Customization and CostExperience, Stability, and Support of a Tier-1 Vendor with 70k employeesFastest Growing Vendor with End-to-End Portfolio

Partnership

Dedication32k+ R&D engineers Customized R&D for Customers

Innovation TCO Savings through Technology InnovationCommon Platform across multiple Products

Huawei Overview

$16B contract sales in 2007


Key Take-Away

LTE offers real business benefits, high value technical improvements and early availability for CDMA operators.

Flexible broad multimode portfolio and seamless interoperabilityare the key factors as CDMA and LTE might co-exist for a long time

Huawei is a leading player in LTE

Thank youwww.huawei.com

Copyright©2008 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.

44380661 6 Huawei Challenges Opportunities With CDMA LTE Inter Working Final

Documents

Transcript of 44380661 6 Huawei Challenges Opportunities With CDMA LTE Inter Working Final