TR 25.815
Signalling enhancements for
Circuit Switched (CS) and Packet Switched (PS) connections;
Analyses and recommendations
V7.0.0 (Wzip)
2006/10 43 p.
- Rapporteur:
- Mr. Pirskanen, Juho
full Table of Contents for TR 25.815 Word version: 7.0.0
1 Scope Word‑p. 6
The present document captures different techniques to improve CS and PS call setup and reconfiguration procedures in UTRA.
2 References Word‑p. 6
3 Definitions, symbols and abbreviations Word‑p. 6
3.1 Definitions Word‑p. 6
3.2 Abbreviations Word‑p. 6
4 Background and Introduction Word‑p. 7
5 Requirements Word‑p. 7
6 Analyses of Current Procedures Word‑p. 9
6.1 Call Setup time for CS and PS Calls Word‑p. 9
6.1.1 RRC Connection Setup Word‑p. 9
6.1.2 CS Call Setup Word‑p. 12
6.1.2.1 Mobile Originated AMR call setup Word‑p. 12
6.1.2.2 Mobile Originated Video Telephony Call Setup Word‑p. 15
6.1.3 PS Call Setup Word‑p. 16
6.1.4 CELL_FACH to CELL_DCH State Transition Word‑p. 18
6.1.5 Reconfiguration of the DCH Word‑p. 19
6.2 Void
6.3 Effects of the Mobility Word‑p. 19
6.3.1 CELL_FACH State Mobility Word‑p. 19
6.3.1.1 Cell Update started before SMC received by UE Word‑p. 20
6.3.1.2 Cell Update started after SMC received by UE, but L2 ACK for SMC not received by UTRAN Word‑p. 21
6.3.1.3 Cell Update started after SMC received by UE and L2 ACK for SMC received by UTRAN Word‑p. 22
6.3.1.4 Cell Update after SMCC, before L2 ack for SMCC delivered to UE. Word‑p. 23
7 Overview of Proposed Improvements Word‑p. 23
7.1 Default Configurations Word‑p. 24
7.2 Stored Configurations Word‑p. 24
7.2.1 General Principle Word‑p. 24
7.2.2 Signalling of Stored Configurations at RB Setup Word‑p. 24
7.2.2.1 Establishment of a Stored Configuration Word‑p. 24
7.2.2.2 Use of a Previously Stored Configuration Word‑p. 25
7.2.2.3 Other Affected Messages Word‑p. 25
7.2.2.4 Management of Stored Configurations Word‑p. 25
7.2.3 Stored Configurations Management by Explicit Signalling Word‑p. 27
7.2.3.1 Identifying Stored Configurations Word‑p. 27
7.2.3.2 Stored Configuration Transfer Procedure Word‑p. 27
7.2.3.3 Notifying Stored Configurations Word‑p. 27
7.2.3.4 Lifetime of Stored Configurations in the UE Word‑p. 28
7.3 Configurations for RB and SRB Word‑p. 29
7.3.1 Void
7.3.2 New Reference Configurations Word‑p. 29
7.4 Enhancements to System Information Broadcast Word‑p. 29
7.4.1 Reducing the SIB7 reading time Word‑p. 29
7.4.2 Reducing the SIB11 reading time in CELL_DCH to CELL_FACH Word‑p. 30
7.5 Avoiding Activation Time in Reconfiguration Word‑p. 30
7.5.1 Utilising Hard Handover Word‑p. 30
7.5.2 Utilising Synchronization via Change of Uplink Scrambling Code Word‑p. 32
7.5.3 Extending the Utilisation of RRC Connection Setup Message Word‑p. 33
7.6 Enhancements on RACH Word‑p. 34
7.7 Enhancements to RRC Connection Establishment Procedure Word‑p. 38
8 Conclusions Word‑p. 39
8.1 Default Configurations Word‑p. 39
8.2 Stored Configurations Word‑p. 40
8.3 Configurations for RB and SRB Word‑p. 40
8.4 Enhancements to System Information Broadcast Word‑p. 40
8.4.1 Reducing the SIB7 reading time Word‑p. 40
8.4.2 Reducing the SIB11 reading time in CELL_DCH to CELL_FACH Word‑p. 40
8.5 Avoiding Activation time in Reconfiguration Word‑p. 40
8.5.1 Utilising Hard Handover Word‑p. 40
8.5.2 Utilising Synchronization via Change of Uplink Scrambling Code Word‑p. 40
8.5.3 Extending the Utilisation of RRC Connection Setup Message Word‑p. 40
8.6 Enhancements on RACH Word‑p. 40
8.7 Enhancements to RRC Connection Establishment Procedure Word‑p. 41
9 Recommendations Word‑p. 41
9.1 Reducing the SIB7 reading time Word‑p. 41
$ Change history Word‑p. 41
