【资料名称】：4G_Americas_Coexistence_of_GSM_HSPA_LTE_May 2011x

【资料作者】：11

【资料日期】：2011-05

【资料语言】：中文

【资料格式】：DOC

【资料目录和简介】：

EXECUTIVE SUMMARY..............................................................................................................................4
1Introduction..................................................................................................................................... 5
1.1Coexistence of GSM, HSPA/WCDMA AND LTE ........................................................... 5
1.2The System ArchitectureEvolution Aspects .................................................................. 5
1.3Scope ............................................................................................................................. 6
Voice Solutions .............................................................................................................. 6
Mobility ........................................................................................................................... 6
Roaming Aspects ........................................................................................................... 6
Radio Network Design and Performance ....................................................................... 7
2Radio Access Network Considerations....................................................................................... 8
2.1Technology Coexistence ................................................................................................ 8
2.2Spectrum Considerations ............................................................................................... 8
Multi-StandardRadio ..................................................................................................... 8
2.3The UICC/USIM and Roaming ..................................................................................... 10
2.4Coverage Triggered WCDMA/GERAN Session Continuity ......................................... 10
3Core Network Considerations..................................................................................................... 11
3.1Core Network Overview ............................................................................................... 11
3.2Migratory ASpects ........................................................................................................ 12
Pre-Rel-8 Gn/Gp Mobility ............................................................................................. 13
Rel-8 S3/S4 Based EPS Mobility ................................................................................. 14
3.3Subscriber Data Aspects: USIM/ISIM .......................................................................... 15
3.4Roaming Scenarios ...................................................................................................... 15
Home tunneling or homerouted scenario .................................................................... 16
Home tunneling along with possibility of local breakout .............................................. 16
4QoS in 3GPP................................................................................................................................. 16
4.1QoS classification and differences in 3GPP networks ................................................. 18
QoS Classification in LTE Rel-8 ................................................................................... 18
QoS classification in UMTS and GPRS networks ........................................................ 20
4.2Network-initiated vs. Terminal-initiated QoS control paradigms .................................. 20
5LTE Services................................................................................................................................. 22
5.1Services over LTE ........................................................................................................ 22
5.2Circuit Switched Fallback ............................................................................................. 24
RRC Release withRedirect ......................................................................................... 25
Enhanced Release with Redirect, Automatic System info Exchange with RIM ........... 26
PS Handover between LTE and GERAN for CSFB ..................................................... 27
Cell Change Order ....................................................................................................... 28
5.3IMS Voice .....................................................................................................................28
Introduction to IMS ....................................................................................................... 28
Introduction toMMTEL ................................................................................................. 30
5.4LTE To Circuit Switched Voice Call Continuity ............................................................ 32
3GPP Rel-9 Architecture enhancements ..................................................................... 32
3GPP Rel-10 Architecture enhancements ................................................................... 33
5.5Roaming Considerations .............................................................................................. 34
5.6IMS Centralized SERVICES (ICS) ............................................................................... 34
Architecture for ICS ...................................................................................................... 35
5.7Messaging overLTE .................................................................................................... 35
SMS over SGS ............................................................................................................. 35
IMS Messaging ............................................................................................................ 36
UICC/USIM and IMS Messaging.................................................................................. 38

Regulatory Issues........................................................................................................................ 39
6.1Lawful Intercept ............................................................................................................ 39
6.2Emergency Services .................................................................................................... 40
6.3Telecommunications Device for the Deaf(TDD) ......................................................... 41
6.4Non-Voice Emergency Service (NOVES) .................................................................... 41
6.5Priority Services ........................................................................................................... 42
6.6Commercial Mobile Alert System (CMAS) ................................................................... 43
7Devices for Seamless Migration................................................................................................. 46
7.1Multimode and Multiband Devices ............................................................................... 46
Antenna Separation and frequency band of operation ................................................ 50
7.2Support for LTE UE Profile Defined by IR.92 for Voice ............................................... 52
8Evolution to communication with devices................................................................................ 54
8.1Network Security .......................................................................................................... 56
8.2Network Considerations ............................................................................................... 56
8.3Device Implications (Man-Machine Interface of UE) .................................................... 56
8.4MTC Implications for Coexistence of GSM, HSPA, LTE ............................................. 58
Conclusion................................................................................................................................................. 59
Glossary..................................................................................................................................................... 60
Appendix.................................................................................................................................................... 62
Acknowledgements.................................................................................................................................. 63