| TSG CT | TSG SA | TSG RAN | TSG GERAN
Previous Highlights: TSG#37
| TSG#36
|TSG#35
|
TSG#34
|
TSG#33
|
TSG#32 |
TSG#31
|
TSG#30
|
TSG#29 |
TSG#28 | TSG#27 |
TSG#26 |
TSG#25 |
TSG#24 |
TSG#23 | TSG#22
TSG#21 | TSG#20 | TSG#19
| TSG#16
| TSG#15
Welcome to the latest edition of TSG Highlights! The aim is to provide you with a concise summary of the decisions and actions of the most recent 3GPP Technical Specification Group meetings.
3GPP has four TSGs: CT (Core Networks and Terminals); RAN (Radio Access Network); SA (Services and Systems Aspects) and GERAN (GSM EDGE Radio Access Network).
Please note, these summaries do not constitute formal, approved reports of the meetings – they are opinions only and also may not be complete. They are offered for guidance only.
TSG CT meeting #38 took place in Cancun, Mexico. The meeting started on the 28th November 2007 and finished on the 30th November 2007.
Only 4 corrections to conformance test cases.
Corrections on Rel-5:
- Termination Out-of-Service cannot be started while
Termination Restoration procedure is ongoing
- Corrections to IMS authentication
- Corrections to IMS SIP profiles in 24.229
- Introduction of versioning of different releases to XML
- Correction to P-CSCF XML processing rules
- Two alternative Rel-7 and Rel-8 mirror CR sets have been approved
conditionally to avoid overlapping CRs
- SA approval of EMC stage 2 CRs defines which set is applicable
- Rel-6 CR count is 51 % down since the previous CT
- 18 Corrections were made on the following work items:
- IMS2
- Mn interface
- Security
- WLAN interworking
- GAA/GBA subscriber certificates
- MBMS
- Rel-7 CR count is 31 % down since previous CT
- The number of Rel-7 Cat F CRs is expected to go down
- Changes and corrections on the following WIs:
- IMS related:
- IMS emergency calls
- Stage 3 IETF protocol alignment
- GRUU
- Service ID
- Multimedia telephony (Cat B. CR)
- Mp interface
- Voice Call Continuity
- Interworking between IMS and CS
- Fixed NGN (Packet Cable)
- PCC
- SMS over IP
- CSI
- other items:
- OSA
- WLAN QoS
- REDHOT, HUGE (capability indication only, no CT WID)
- TEI7
MMTel service identification:
- Two alternative CRs had been technically reviewed by CT1
- No voting took place as one of the options was withdrawn
- Encoding of ICSI in Accept-Contact header is mandatory
- concerns were expressed on this solution, and it will be up to CT1 to study
within the remit of maintenance of frozen release if any further work is needed
- Rel-8 CR count is 49 % up since the previous CT
- 13 new WIDs and 2 updated ones were approved
- SAE work is still in TR mode
- TR study work has been planned up to 03/2008
- The WGs were requested to plan the normative phase of the work
- Contributions were received against several Rel-8 WIs:
- Nc interface
- Stage 3 IETF protocol alignment
- Interconnection interfaces between two IMSs
- IMS enhancements for packet cable access
- SAE (discussion document, noted)
- Contact manager for UICC applications
- Enhancements for VGCS applications
- OSA
- TEI-8
- Transfer of Common IMS items
- 7 new work items were started
- 3 WIDs to maintain and re-document the transferred items as 3GPP TSs
- 4 WIDs to complete still outstanding TISPAN work as feature-based work items
- All 7 WID included in Rel-8 work plan
- Harmonization of 3GPP2 MMD to be studied in Jan 2008:
- WG level workshop has been agreed for 24 – 25 Jan 2008
- Overlap signalling in IMS
- TSG CT started a new work item to develop the stage 3 for overlap signalling
in IMS transit networks
- SAE schedule
- Up to now only the study part of CT work has been planned (->03/2008)
- Normative TS work to be planned 1Q/2008
- Stage 2 is needed last Friday
- CT will have very little time to complete SAE !
CP 070731 WID for definition of Overlap Signalling CT WG3
CP 070760 Study Item for Interworking Function (IWF) between MAP based and
Diameter based interfaces CT WG4
CP 070868 New WID on Conferencing Enhancement for Mp interface. CT WG4
CP 070877 WID on Documentation of TISPAN NGN R1 and R2 in 3GPP TSG CT CT WG1
CP 070777 Maintenance of TISPAN Release 1 CT WG1
CP 070778 Maintenance of TISPAN Release 2 CT WG1
CP 070779 NGN IMS Supplementary Services; Call Completion on Busy Subscriber (CCBS),
Call Completion No Reply (CCNR) CT WG1
CP 070780 WID for definition of Communication Wait Service CT WG1
CP 070781 WID for NASS Bundled Authentication. CT WG1
CP 070782 WID for MGCF interworking between UUS and SIP CT WG1
CP 070783 Paging Permission with Access Control Requirements for CT1 (PPACR-CT1)
CT WG1
CP 070784 Media Server Control using the IP Multimedia (IM) Core Network (CN)
system CT WG1
CP 070837 Definition of 3GPP UICC services over the new high-speed interface CT
WG6
CP 070729 Multimedia interworking between IM CN subsystem
and circuit switched networks CT WG3
CP 070761 Updated WID for IMS Restoration Procedures CT WG4
CP 070775 3GPP TR 24.880-v2.0.0 Media Server Control using
the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3 CT WG1
CP 070713 3GPP TS 29.199-22 v100 OSA Parlay X web services: Part 22: Policy CT
WG5
CP 070713 3GPP TR 23.820 v1.0.0 Study on IMS Restoration Procedures CT WG4
CP 070838 3GPP TS 31.220 v1.0.0 Characteristics of the Contact Manager for 3GPP
UICC applications CT WG6
TSG RAN meeting #38 took place in Cancun, Mexico. The meeting started at 9:00 on Tuesday 27th November 2007 and finished on the Friday 30th November 2007. 150 participants attended the meeting and 271 documents were submitted.
The approved Change Requests (CRs) to TSG RAN specifications are summarised in
the following table and figure:
|
Release |
WG1 |
WG2 |
WG3 |
WG4 |
WG5 |
TSG RAN |
Total |
|
Release 99 |
0 |
0 |
0 |
0 |
73 |
0 |
73 |
|
Rel-4 CRs (Rel-4 excluding Cat A) |
0 |
(1) |
(0) |
(0) |
101 |
0 |
(102) |
|
Rel-5 CRs (Rel-5 excluding Cat A) |
0 |
2 (1) |
(0) |
(0) |
15 |
1 |
(17) |
|
Rel-6 CRs (Rel-6 excluding Cat A) |
2 (2) |
10 (8) |
(1) |
(2) |
121 |
1 |
(135) |
|
Rel-7 CRs (Rel-7 excluding Cat A) |
15 (13) |
64 (54) |
46 (43) |
15 (13) |
86 |
2 |
(211) |
|
(Rel-8 CRs excluding category A) |
(3) |
(8) |
(0) |
(11) |
(0) |
(0) |
(22) |
|
Total CRs (Total excluding Cat A) |
18 |
72 |
44 |
26 |
396 |
4 |
560 |
Most of the CRs affect e.g. the Rel-6 for the testing and the Rel-7 for the non-testing (correction of Rel-7 Work Items). They were also some corrections of LCR TDD within the Rel-7.
GSMA informed about an issue with System Info 5bis, RAN WG2 was tasked to investigate this.
RAN WG4 will investigate the coexistence in the 2.6 GHz band and BRAN, following the LS from ECC PT1.
Release 8 ITU-R M.1457 is under elaboration, the text and list of specifications
was submitted to TSG SA 38 in order to be included in turn in M.1457 (LS RP-070970).
A workshop was hold to prepare for further activities to be held following
reception of the circular letter from ITU-R on IMT advanced. It was agreed the
following:
- The Study Item on IMT-Advanced is targeted to be approved at RAN#39.
- Technical workshop prior to the RAN#40 meeting to be held.
- Requirements to be solidified at RAN#40.
An LS was also agreed to be sent to WP5D, as a result of the workshop on IMT
Advanced, providing the updated terms of reference of TSG RAN and its working
groups.
A workshop will be held on April 07-08th in China the week following RAN WGs.
Work Items completed at this meeting:
Inclusion of Uplink TDOA UE positioning method in the UTRAN specifications.
Study Items / Work Items completed at this meeting:
- WI on CS voice over HSPA.
- SI on Improved Network controlled mobility between LTE and 3GPP2/mobile WiMAX
radio technologies was closed. It was agreed to incorporate new WI for
interworking with CDMA 2000 into the revised LTE WI.
The part dealing on LTE is now almost completed in terms of principle. A planning in terms of completion of the specifications was provided (RP-071019).
Most of the RAN core specifications are now approved.
RAN has established and approved the list of open issues and their dependencies within and outside of the RAN.
Work Items:
64QAM for 1.28 Mcps TDD HSDPA. RP-070924.
Enhanced CELL_FACH state in 1.28 Mcps TDD. RP-071038.
LCR TDD Repeater Specification RP-071003.
Support of WiMAX - UMTS Mobility RP-071035. Conditionally approved.
UMTS/LTE 3500 RP-071012. Approved in principle.
UMTS 2300MHz TDD RP-071016.
Update of LTE WI to include interworking with WiMAX RP-071034. Conditionally
approved.
Study Items:
Evaluation of the inclusion of Path Loss Based Technology in the UTRAN RP-071050.
HS-PDSCH serving cell change enhancements RP-071044.
The Chairman thanked the delegates for their work. He
thanked Claude Arzelier (leaving ETSI MCC) for his support over those last years,
on behalf of 3GPP.
Claude thanked all the delegates for their friendliness and wished all the very
best to everybody, highlighting that one of the great chances of our activities
was to meet and work with different cultures. The meeting closed under a
standing ovation at 13.00.
TSG SA meeting #38 took place in Cancun, Mexico. The meeting started on the 3 December 2007 and finished on the 6th November 2007.
Please find below my summary of major decisions from SA#38. It serves to highlight key agreements reached during the meeting and forms the basis of the summary of the SA meeting on the 3GPP web site. I have not included the specific guidance to the SA WGs as the WG chairs and MCC provide that guidance to the WGs. Please let me know any errors or omissions.
SA#38 was a busy meeting with several key agreements.
Rel 8 stage 1 specifications were frozen with several exceptions. The stage 1 work related to EPS is considered complete. The following exceptions were granted until SA#39:
Furthermore, it was agreed that the tentative target for the Rel 8 stage 2 freeze is June 2008 (to be confirmed by SA2).
The two key architectural specifications for EPS
(23.401 and 23.402) were approved.
At the previous plenary (SA#37), a target date for
Rel 8 and an essential set of contents were agreed. Many EPS functions were not
classified as essential but are nevertheless important for some deployment
scenarios. It became clear that not all this functionality could be included in
Rel 8 and priorities needed to be established. After considerable discussion
with heavy operator involvement a set of priorities and guidance for SA2 was
developed. These priorities and guidance can be found in SP-070945.
A key controversial issue within EPS was optimized handover for WiMax. A compromise was reached that should allow progress. The compromise is documented in SP-070943.
It was also agreed that for the Rel 8 timeframe, the CS Fallback approach currently documented in the CS over EPS study will receive priority as the mechanism for providing voice services when IMS based voice services are not deployed.
Work related to common IMS continues. WIDs were approved for the transfer of TISPAN stage 2 work. Several TISPAN stage 1 and 2 specifications were approved and immediately frozen. Work was also begun on studying impacts of the Gq’ and Rx interface integration. 3GPP will also now normatively specify the TISPAN authentication methods.
A workshop was endorsed for January 24-25 to
initiate the transfer of common IMS work from 3GPP2.
The following new TSs were approved: TS 23.401 GPRS
Enhancements for E-UTRAN Access (SP-070828), TS 23.402 Architectural
Enhancements for non-3GPP Accesses (SP-070829), TS 32.274 Charging Management –
SMS Charging (SP-070748), Common IMS transfer of stable TISPAN Specifications
into TS 22.273 (SP-070894), TS 23.406 and TS 23.506 (SP-070935), TS 23.507
(SP-070936), TS 23.417 and TS 23.517 (SP-070937), TS 23.508 (SP-070938), TS
23.509 (SP-070939), TS 23.511 (SP-070940), TS 23.521 (SP-070941)
The following new TRs were approved: TR 22.812 Study into Network Selection Requirements for non-3GPP Access (SP-070868), TR 22.937 Requirements for Service Continuity between Mobile and WLAN Networks (SP-070869), TR 23.847 Study on Enhancements to IMS Service Functionalities Facilitating Multicast Bearer Services (SP-070830), TR 26.967 eCall Data Transfer – Inband Modem Solution (SP-070754), TR 33.820 Study on Charging Management for EPC (SP-070751),
Several new work items (WIDs) were approved: Requirements for IP Interconnect (SP-070871), Charging for two-Phase Services (SP-070872), Network Selection for non-3GPP Accesses (SP-070874), CS Customized Ringing Signal (SP-070875), Public Warning System Requirements (SP-070876), Storage and Easy Access of In Case of Emergency Numbers on USIM (SP-070944), Requirements for Home (e)NodeB (SP-070952), GPRS and EPS Support for IMS Emergency Calls (SP-070820), Harmonization of Gq’/Rx for Common IMS (SP-070822), Transfer of TISPAN R1 and R2 documents (SP-070823, SP-070915, SP-070916), Single Radio VCC (SP-070949), MTSI Video: Dynamic Rate Adaptation/Signalling of Image Size (SP-070755), eCall Data Transfer Phase 2: Comparison and Selection of an in-band Modem Solution (SP-070756), Extending PSS and MBMS User Services for Optimized Mobile TV (SP-070757), EPC Charging (SP-070736), EPC NRM IRP (SP-070737), E-UTRAN NRM IRP (SP-070738), Advice of Charge Suport in IMS Charging (SP-070739), MMTel Charging (SP-070749), WLAN Offline Charging (SP-070750)
Several WIDs were updated: TISPAN Customized Multimedia Information – TISPAN CAT requirements incorporated (SP-070880), Enhancements for VGCS Applications – Cleanup of Service Aspects (SP-070904), Support of Service Level Interworking and Messaging Services – Updated documentation structure and expected dates (SP-070816), Earthquake and Tsunami Warning System – Added SA2 aspects (SP-070815), IMS Centralized Services – Added SA2 aspects (SP-070924), SAES – Reflect WiMax optimized handover compromise and updated dates (SP-070933), HUSPA Performance Measurements for CS Bearer Transport URM – Added TDD aspects (SP-070835).
Several new study items (SIDs) were approved: Study of Advanced Requirements for IP Interconnect (SP-070878), Home Study of Architecture for IMS Based Customized Alerting Tone (SP-070905), Evolution of LCS Solutions for EPS (SP-070819), System Enhancements for the Use of IMS Services in Local Breakout and Optimal Routing of Media (SP-070838), UTRAN Key Management Enhancements (SP-070782), Home (e)NodeB Security (SP-070783).
One SIDs was updated: Multimedia Session Continuity – Clarification of Objectives (SP-070818).
It is almost the holiday season and an opportunity to take a brief pause before plunging into 2008. I would like to thank all the delegates, officials, MCC, and tolerant spouses and families for their hard work and understanding during this last year. A lot has been accomplished and I am confident that even more will be accomplished next year.