From: Stephen Hayes [stephen.hayes@ERICSSON.COM]
Sent: 24 September 2007 16:14
To: 3GPP_TSG_SA
Subject: Chairman's Summary of SA#37

Dear Colleagues,

Please find below my summary of major decisions from SA#37. 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.

The focus of 3GPP is now fully on Rel 8. Stage 1 of Rel 8 is expected to be frozen at SA#38, although some exceptions are expected.

It was agreed that LTE/SAE is the key functionality in Rel 8 and will define the completion date of Rel 8. At a minimum, SAE must support:

- Functions and procedures for SAE to support LTE access with GTP
- Functions and procedures for SAE to support LTE access with PMIP
- Functions and procedures for SAE to support interoperation between LTE and legacy cellular PS accesses (LTE <-> 3GPP & 3GPP2 Radio Accesses)

Other functionality in SAE remains in SAE as part of Rel 8, but is not considered essential. The tentative target for completion of LTE/SAE is Dec 2008. Due to the importance of LTE and SAE, progress of LTE/SAE will be tracked at each SA plenary. The specific guidance on this issue is documented in SP-070699.

The assimilation of work for Common IMS is proceeding well. The transfer of stage 1 work from TISPAN into 3GPP is substantially accomplished. A LS was sent from 3GPP to various organizations describing lessons learned from the stage 1 transfer and recommendations on how to accomplish the transfer (SP-070696). A dialog with 3GPP2 TSG-X has begun and 3GPP has expressed willingness to include the IMS work currently in MMD (SP-070666). Finally, it was agreed that codecs are outside of the scope of Common IMS, however coordination is encouraged (SP-070697)

Some other specific decisions on by the SA plenary were:

- It was agreed to start normative requirements work on Earthquake and Tsunami Warning System (ETWS) to meet the Japanese timeframes (SP-070695). This current Public Warning System (PWS) study will continue. ETWS will ultimately become part of the overall PWS work once PWS proceeds into a normative phase.
- Unmodified CTM was found to meet many of the requirements for eData transfer, but not all requirements. It was therefore agreed that SA4 would proceed to the candidate evaluation phase for selection on an in-band modem solution for eCall. A LS was sent to the European Commission (via MSG) informing them of the situation and also asking if they were willing to relax the data rate requirement and thus avoid the 3GPP codec evaluation phase (SP-070711).
- Support of A5/2 is now prohibited from Rel 99 onwards.
- A LS was sent to OMA informing them of the completion of the 3GPP study on convergent multimedia conferencing (SP-070700)
- SA#37 endorsed the output to ITU-T Q1741.5 for Rel 7 (SP-070584)
- The GERAN work on RED HOT and HUGE were granted Rel 7 exceptions.
- It was confirmed that the RAN work on Voice over Circuit over HSPA should be in Rel 8.

The following new TSs were approved: TS 22.153 Multimedia Priority Service Stage 1 (SP-070576), TS 32.155 Telecommunication management; Requirements template (SP-070615).

The following new TRs were approved: TR 22.948 Study of Requirements of IP-Multimedia Subsystem (IMS) Convergent Multimedia Conferencing (SP-070575), TR 22.942 Study on Value Added Services for SMS (SP-070648), TR 32.818 Telecommunication management; Study on MTOSI XML harmonization (SP-070623).

Several new work items (WIDs) were approved: Earthquake and Tsunami Warning System Requirements (SP-070695), Several WIDs related to the transfer of TISPAN stage 1 work into Common IMS (SP-070568, SP-070569, SP-070691, SP-070570), Support of Value Added Services for Short Message Service (SP-070572), NGN Service Requirement for the Open Services Access (OSA); Stage 1 (SP-070692), IMS Centralised Service Control (SP-070693), VGCS/VBS and GPRS Interactions (SP-070653), End-User Identity (SP-070651), Mobility between 3GPP-WLAN Interworking and 3GPP Systems (SP-070701), Stage2 for Registration in Densely-populated area (SP-070694), Subscriber and Equipment Trace for eUTRAN and EPC (SP-070617), End point modelling for reference point (SP-070618), Add Interconnection Border Control Function (IBCF) to IMS Charging (SP-070621).

Several new study items (SIDs) were approved: Study of enhanced voice service requirements for the Evolved Packet System (SP-070698), Study of Extended Support of IMS Emergency Calls (SP-070547), and Study of System enhancements for the use of IMS services in local breakout (SP-070686), Study of Remote management of USIM application on M2M Equipment (SP-070702).

Two SIDs were updated: Requirements for service continuity between mobile and WLAN networks (SP-070557), Study of Multimedia Session Continuity (SP-070546),

Over the last few plenaries, we have gotten very lax about having documents ready in a timely manner. There are various reasons for this (WG overload, MCC turnover, meetings near the plenaries); however I would like to remind all delegates and the MCC of the need to have documents ready well prior to the plenary. 3GPP progress is based on the ability to make decisions during the meeting and that requires the ability to review the documents before the meeting.

3GPP now has two conflicting directions. As can be seen by the large number of WIDs and SIDs approved at SA#37, Rel 8 is still in the ramp up phase. On the other hand we have established a target for completing Rel 8 (Dec 2008 or whenever LTE/SAE completes). This is not hypocrisy as 3GPP has a history of giving almost all ideas a chance. However, it is clear that not all of the SIDs and WIDs will make the Rel 8 cutoff. In upcoming meetings we must be prepared to make hard choices if we want to keep the Rel 8 timeplan.

Regards,
Stephen Hayes
3GPP TSG-SA Chair
Ericsson Inc.
Tel: +1 817-491-4015
Fax: +1 817-977-8920
Mobile: +1 469 360 8500
mailto:stephen.hayes@ericsson.com