Maximize the Value of CDMA Networks and Maximize the Value of CDMA - - PowerPoint PPT Presentation

Maximize the Value of CDMA Networks and Smoothly Evolve to the Next Generation Maximize the Value of CDMA Networks and Smoothly Evolve to the Next Generation

Sean Cai

VP Wireless, ZTE Corporation

Sean Cai

VP Wireless, ZTE Corporation

CDG Technology Forum 2011

Technology Evolution

Table of Contents

Maximizing Values of CDMA Smooth Migration to LTE

3

2G 3G

UMTS, CDMA, TD-SCDMA

4G

GSM, IS-95

Mobile Technology Evolution Mobile Technology Evolution

Mobile Market Trends Mobile Market Trends

Source: CDG

5

Different Characteristics Different Characteristics

Basic Services

Guaranteed communication connections at anytime and anywhere.

Value Added Services

Requiring high throughput and low latency communication connections covered in relative small areas or hot spots.

6

High Traffic Increase vs.. Slow Revenue Growth High Traffic Increase vs.. Slow Revenue Growth

Source: 3rd party

Global Mobile Revenue (million USD) Mobile Data Traffic and Revenue

Source: 3rd party

7

Concurrent Voice & Data Services Concurrent Voice & Data Services

Voice and Data Concurrent Services

CDMA currently does not support voice and data concurrent services. But this is a very important feature for smart phones.

Overloaded Data Services Impact on Voice Calls

Data service not only increases the data traffic, but also

• ccupies a lot of bandwidth on signaling channel, which

causes high call drop rate.

8

Dual Network Architecture Dual Network Architecture

8

8

GSM/UMTS/LTE

xGSN BSC/RNC Servers

EPC Voice bearer network (IP) Internet bearer network (IP) Voice Broadband Data

No TCO Increases!

9

Independent Migration Paths Independent Migration Paths

Smooth Evolution Smooth Evolution

CDMA and LTE CDMA2000 1X Adv CDMA2000 1X CDMA2000 HRPD

10 10

Different Deployment Strategy Different Deployment Strategy

Voice Networks

Wide area coverage for voice and low throughput data services Suburb Urban area Hot spot To cover high density areas for data services Interworking and evolving to single data network

Technology Evolution

Table of Contents

Maximizing Values of CDMA Smooth Migration to LTE

12 12

Voice Quality Voice Quality

13 13

Values of CDMA Voice Networks Values of CDMA Voice Networks

Title in here Voice Quality Title in here Network Coverage System Capacity

CDMA Technology

14 14

Voice Capacity Voice Capacity

15 15

Radio Coverage Radio Coverage

Without soft handoff Without soft handoff Discontinuous power transmission mode Discontinuous power transmission mode

AMR 12 . 2 kbps AMR 12 . 2 kbps Soft handoff Soft handoff

Continuous power transmission mode Continuous power transmission mode

EVRC‐B EVRC‐B

1X Advanced LTE VoIP

1 ~ 2 db 1 ~ 2 db 6 db 6 db 2 . 6 db 2 . 6 db

RL Budget Difference

10 db 10 db

16 16

Migration to 1X Advanced Migration to 1X Advanced

EVRC‐B(4GV) Mobile Receive Diversity (MRD) Quasi Linear Iinterference Cancellation (QLIC) Quasi Orthogonal Function (QOF)

Software Upgrade

Smart Blanking of the 1/8 rate frame Improved closed loop power control Early termination of forward and reverse links

Hardware upgrade required

Enhanced FL IC Reverse Link Interference Cancellation (RLIC)

50% More Capacity Gain Over 3x Capacity Gain

17 17

Benefits to Data Services Benefits to Data Services

The same voice capacity on 1x advanced only takes 25%

• f the existing spectrum.

The same voice capacity on 1X advanced only takes 25% of the

existing spectrum.

Saved spectrum can be used for DO or LTE to increase data capacity.

CDMA Network Migration CDMA Network Migration

Technology Evolution

Table of Contents

Maximizing Values of CDMA Smooth Migration to LTE

19 19

Future Network Consideration Future Network Consideration

20 20

CDMA2000 1X Baseband module + software upgrade CDMA2000 1X CDMA2000 EV‐DO LTE and CDMA enhancement

SDR BBU Platform

Multi Multi‐ ‐Radio Technologies Radio Technologies

Baseband module + software upgrade

Single Platform Single Platform

UNI‐RAN for Multi‐Radio Technologies UNI‐RAN for Multi‐Radio Technologies

21 21 Single Platform Single Platform

RRU

CDMA RRU 700MHz LTE(5M)

> 100MHz

CDMA LTE RRU

800MHz 1900MHz

LTE

< 20MHz

CDMA

CDMA + LTE RRU

UNI‐RAN for Multi‐band Radios UNI‐RAN for Multi‐band Radios

22 22

Outdoor Installation Indoor Installation Power Trans Feeder RRU BBU Battery Power Transmission

Centralized Installation Centralized Installation Distributed Installation Distributed Installation

Feeder Fiber C/L Dual‐Mode C/L Dual‐Mode C/L Dual‐Mode C/L Dual‐Mode Equipment sharing Equipment room sharing Power supply and battery sharing Tower sharing Feeder sharing

UNI‐RAN: Much Easier to Install UNI‐RAN: Much Easier to Install

23 23

Core network Wireless network

UNI‐CORE for Smooth Network Migration UNI‐CORE for Smooth Network Migration

24 24

Core network Wireless network

UNI‐CORE for Smooth Network Migration UNI‐CORE for Smooth Network Migration

25 25

Combined BSC/RNC Multi-mode BBU Multi-mode Baseband Cluster MSR/MBR/SDR Unified-User Profile Service Platform Unified-NMS Unified Gateway Micro/Pico/Femto

UNI- BEARER

Unified Network Platforms Unified Network Platforms

Voice & Data dual network strategy Maximized the values of CDMA Maximized spectrum efficiency of voice for data services Unified Network Platform provides a way to smoothly migrate to LTE

Summary: