1. Jin Mingye Jinmy@chinaunicom.com.cn June 2005
中国联通技术发展战略
China Unicom CDMA2000 Evolution Perspectives
Jin Mingye
June 2005

2. Outlines
Network Overview
CDMA2000 evolution perspectives

3. Outlines Network Overview CDMA2000 evolution perspectives
Mobile Network
Fixed Network
Fixed & Mobile Convergence
CDMA2000 evolution perspectives

4. Mobile network overview
-GSM and CDMA are operated together A
Abis
BSC
BTS
GSM RAN
MSC/GMSC
ISUP
PSTN/PLMN
GSM & CDMA2000 1x
teminal
GSM-MAP Core Network
Billing / OHS
SMSC
AuC
HLR
CDMA-MAP Core Network
Abis
BSC
BTS
CDMA RAN
MAP
AAA A
MSC/GMSC
PDSN
G&C GW
Internet/
Intranet
GSM
CDMA2000 1X
Convergence Element

5. Mobile network evolution
CDMA 1XEV-DO(Rev.0-Rev.A)
Network Trials: technical trial, commercial trial
Terminal Preparation : R-UIMs support, access authentication based on R-UIM
Service Preparative : service development, 1x service migration, video telephony
Standards Preparation: technology research and international standardization

6. Hot issues IMS-based CN convergence
-unified architecture and mechanisms for different access networks and different services
- 3GPP2 Standardization as soon as possible VT
Representative 3G service
3GPP2 Standardization Target Q3 2005
Active Inter-ANC/PCF handoff
Enhance Inter-vendor handoff performance of real-time applications
3GPP2 Standardization Target Q4 2005
3G 1X and EV-DO inter-operability

7. Outlines Network Overview and evolution strategy
Mobile Network
Fixed Network
Fixed & Mobile Convergence
CDMA2000 evolution perspectives

8. Fixed network overview
Transport network (DWDM+SDH)
Data backbone network（ATM+IP+MPLS)
IP telephone service network (VoIP)
Internet
(165 network)
Wide-band video conference network (VC)
(193)
Long-distant telephone network

9. Technology Preparation
Multiservices UniNetworks Platform(Uninet)：
ATM+IP+MPLS
Multiple services On one backbone Network
Softswitch Trial：In Six Branches
Networks：In NGN Architecture
Services：Provide traditional and new services
China Next Generation Internet（CNGI）:In Seven Cities
IPv6 Trials
Explore Next generation Development Model

10. Fix network evolution Actively evolve to NGN
Large scale soft-switching technical trial shows that soft switching based NGN is successful, and migration and development of telecom services are achieved
China Next Generation Internet (CNGI) and IPv6 related technologies, services and operation model to reach the evolution of China Unicom Internet

11. Outlines Network Overview and evolution strategy
Mobile Network
Fixed Network
Fixed & Mobile Convergence
CDMA2000 evolution perspectives

12. Fixed &Mobile Convergence
Push fixed and mobile networks convergence
Layer-based convergence
Service application——unified mobile/fixed service platform
Core control——unified soft-switching architecture
transport network——unified packet (IP) bearer platform
Integrated access network——basis of implementation of converged NGN

13. Fixed &Mobile Convergence
IN, OSA/Parlay, APP Server
Service Platform
IMS
Core Network
CSCF
MGCF
AAA
ATM/IP Networks
PDSN IP
MGW
TDM
WLAN
Fixed
Mobile
SIP Signaling (IMS)

14. Outlines Network Overview and evolution strategy
CDMA2000 evolution perspectives
Goals
RAN CN

15. a clear and aggressive evolution path is required
Driver of evolution
Market pressure
3GPP evolution
Although cdma2000 is time-to-market leading now, it will face the threat from HSDPA/UPA in the near future
3GPP has set up LTE study item
WiFi/WiMax performance claims
User services demands
Voice performance can compare to that of fixed network
Efficiently support various multi-media services
New technology pressure
OFDM, MIMO…
To ensure competitiveness in an even longer time frame in 3G and beyond 3G market,
a clear and aggressive evolution path is required

16. Evolution goals Better User experiences
Support various services from PS domain
QoS support
Cost effective and smooth migration
Reduce cost per bit
Reduce CAPEX and OPEX including backhaul
Protect existing RAN investment
Quick and simple deployment to gain early market share
Backwards compatibility
Highly desirable
balance of complexity and capabilities

17. Evolution goals
Inter-working with existing 3G systems & non-3G systems
Handover between different Air interfaces
Core network interworking and convergence
International and inter-system roaming for both voice and data should be supported and enhanced
Reasonable system and terminal complexity, cost and power consumption

18. Evolution goals Support UIM-based technology
Open and simplified interfaces
Independence of CN evolution and RAN evolution

19. Outlines Network Overview and evolution strategy
CDMA2000 evolution perspectives
Goals
RAN CN

20. Performance Requirement (1)
3GPP “Evolved UTRA and UTRAN” Target
Data rate
Downlink peak data rate over 100Mbps/20MHz
Uplink peak data rate over 50Mbps/20MHz
Higher user throughput e.g. 2-4 times DO Rev.A per carrier
Higher “cell edge bit-rate”
RAN latency
Less data call setup and shorter round-trip time
Capacity
Improve system capacity for QoS-constrained applications,
e.g. VT

21. Performance Requirement (2)
Spectrum Efficiency
Significantly improved, e.g. 3-5 times DO Rev.A
Bandwidths and spectrum allocation
Flexible bandwidths ranging from 1.25 to 20MHz
Possibility of asymmetrical and non-contiguous downlink/uplink spectrum allocation to one terminal
Mobility
Support medium and high speed mobility (e.g. high-speed train)
Security
Appropriate security level with reasonable complexity

22. Evolution paths Near-term Middle & Long-term
Multi-Carrier HRPD by software upgrades to compete to compete with HSDPA/HSUPA peak-rate
Middle & Long-term
To reach expected performances to compete with evolved 3GPP Air Interface and WiFi/WiMax
“Enhanced cdma2000” with new technologies,
e.g.OFDM,MIMO etc.
Support enhanced IMS
Backwards compatibility is one of key consideration

23. Time Frame for RAN Evolution
Required timing of 3GPP2 evolution standards/product with respect to countering 3GPP & WiMax offerings
study near-term and Middle/long-term evolution paths
Near term
Target standardization by Q2 2006
Middle/long term
Requirement Definition by Q4 2005
Target standardization by Q4 2006

24. 3GPP2 procedure
3GPP2 specification development should also address issues related to market timing window by streamlining and implementing the most efficient working procedures in 3GPP2 in order to be highly responsive

25. Outlines Network Overview and evolution strategy
CDMA2000 evolution perspectives
Goals and stage
RAN CN

26. CN
Status quo:
For different systems, core network architecture and protocol are different, e.g. PSTN, mobile: GSM,CDMA 1X
Evolution Requirement:
Lower cost , less complexity, simplified operation ;
Goals:
converged core network with support for multiple access networks

27. Next generation CN
A common IP multimedia platform (e.g.IMS ) can be used for converging different next generation CN
3gpp——IMS
3gpp2——MMD/IMS
FGNGN/ETSI——IMS-domain/subsystem

28. IMS-based CN convergence
3GPP/3GPP2 IMS convergence requirements
-Architecture harmonization
-Interface and protocol simplification and coordination
-QoS mapping and end-to-end QoS realization
-Service-based bearer control
-online and offline, flow-based charging
-security (IPSec or any other option)
Store security and subscription information in R-UIM for IMS
Interworking with existing network

29. 3GPP2 procedure Long term evolution goal and specific plan
Influent 3GPP work on common issues
Closer co-operation with ITU-T/ETSI

30. Phases for CN evolution
Near-term
PP/PP2 IMS interworking and convergence
IPv4 / IPv6
Middle & Long-term
Fixed & Mobile Convergence
Service plane
control plane
bearer plane
IPv6

31. Thanks！

32. 3GPP “Evolved UTRA and UTRAN” Target
Peak data rate
100Mbps/20MHz(downlink)
50Mbps/20MHz(uplink)
Average User throughput
3 times Release 6 HSDPA
2 to 3 Release 6 HSUPA
Spectrum efficiency
3 to 4 times Release 6 HSDPA (downlink)
2 to 3 times Release 6 HSUPA (uplink)
RAN latency
Possibility for a Radio-access network Round-Trip Time (RTT) below 10 ms
Scaleable Bandwidth
1.25, 2.5, 5, 10 or 20MHz
Mobility
E.g.Voice should be supported and have the same quality as 3G up to 300km/h

33. 3GPP “Evolved UTRA and UTRAN” evolution timeline
2005
2004
2006
2007
#25
#28
#27
#26
#29
#32
#31
#30
#33
#36
#35
#34
#38
#37
Nov.
June
Study Item (SI) period
Work Item (WI) period
(Indicative Deadline)
Study Item: requirements, assessment
Work Item: specifications