Status report of RAN WG 2 to RAN

Status report of RAN WG 2 to RAN #34 RP-060650 DRAFT Denis Fauconnier RAN WG 2 Chairman

Meetings held since last RAN Plenary > RAN 2 meetings • One meeting in Seoul • One meeting in Riga > Joint meeting with RAN 1 on MBMS in Riga > Intense meetings!!! Slide 1

Main activities since last RAN Plenary > No R’ 99, no Rel-4 CR > Only Release 5 corrections relate to ROHC option > MBMS corrections > E-DCH corrections > Stage 2 CR of CPC completed > TEI 7 > LTE • Progress of the Stage 2 > Companion document with CRs is RP-060651 Slide 2

Liaison statements In/Out Incoming Out. Slide 3

Number of inputs per meeting LTE only (LTE only ) Slide 4

Release Independent Frequency Bands > CRs to 25. 307 and 25. 331 introducing signalling for Band X (Extended UMTS 1. 7/2. 1) > one other correction to 25. 307 to clarify MCCs corresponding to Japan • used when UE distinguishes UARFCNs between Band V and Band VI Slide 5

Release 5

Release 5 CR statistics Slide 7

Release 5 CR details > 3 release 5 CRs related to ROHC/PDCP • CR to annex of 25. 323 used for ROHC performance testing • CR to 25. 323 and corresponding CR to 25. 331 to limit the acceptable configurations for compression entities in PDCP Slide 8

Release 6

Release 6 statistics Slide 10

MBMS > 6 release 6 CRs to 25. 331 on MBMS • 2 of these correcting the 'Mobile TV' functionality added at last meeting > 2 MCCH configurations for 25. 993 agreed > One of the MCCH configurations for 25. 993 uses 20 ms TTI and can not be supported by minimum capability MBMS UEs • RAN 1 asked if it is possible to increase the minimum capability Slide 11

FDD Enhanced Uplink > 7 release 6 CRs - 4 to MAC, 2 to RRC • mostly fairly minor in nature > CR to 34. 109 to change UE test loop for E-DCH performance testing agreed following endorsement of CR by RAN 5 Slide 12

TEI 6 > 5 release 6 CRS to 25. 331 • all quite minor in nature Slide 13

Summary of release 6 CRs > FDD Enhanced Uplink (RP-060716) > MBMS (RP-060718) > TEI 6 (RP-060719). Slide 14

Release 7 and later releases Work Items

Improved Support of Gaming over HSDPA/EDCH > Liaison received from OMA providing delay, data rate and loss tolerance requirements for various types of game, and information captured in TR. > 1 contribution presenting an analysis of gaming latency that can be expected with HSDPA/EDCH. • Some companies expressed views that the delay requirements can be met with release 6. Slide 16

Enhanced CELL_FACH State in FDD > 9 contributions treated. > Two proposals for the transport channel to be used in the enhanced CELL_FACH state: • enhanced SCCPCH • HS-DSCH > Aim is to make this decision by RAN#35 • RAN 1 input also needed to help in this decision Slide 17

Global Navigation Satellite System (GNSS) in UTRAN > No inputs - waiting for input from GERAN Slide 18

1. 28 Mcps TDD Enhanced Uplink > One change to work item TR 30. 302 agreed > Proposal to permit multiplexing of Scheduled and Non Scheduled transmissions within one TTI was not agreed due to divergence from 3. 84/7. 68 Mcps TDD Enhanced Uplink • Discussions continuing to the next meeting Slide 19

LTE > Work Item not too far from schedule, but it is obvious we need to work more in between meetings in order to meet schedule > Progress on protocol architecture, random access procedure, paging, Broadcast of System Information, mobility in Active and Idle mode > Concepts/proposals on uplink and downlink scheduling mechanism have been made • Long discussions on Qo. S linked to SA 2 > Studies show a need to minimise overhead channels (Sys. Info but also scheduling channels) • Important topic for future meetings > Requirements on LTE MBMS have been progressed • Several scenarios under consideration > Need to work with RAN WG 1 & SA 2 > Scope of specifications agreed, rapporteurs assigned > See rapporteur report for details Slide 20

TEI 7 and other > Number of CRs agreed under TEI 7 • • High Speed optimisation when entering /leaving CELL_DCH state RRC changes to support the introduction of UEA 2/UIA 2 RRC changes to support WCDMA cells with extended cell range Inter-RAT DTM handover was agreed following liaison from GERAN > Summary of RAN 2 impacts of Local Service Change (proposed under Delay Optimisation WI) was provided to SA for information. Slide 21

List of Study Items under RAN WG 2 > Improvement on MBMS > Scope of future FDD HSPA Evolution Slide 22

Improvements on MBMS > Joint session of RAN 1/2/4 discussed the conclusions of the study item > A set of principles for any further work on improved MBMS were agreed and documented in the study item TR. Slide 23

Scope of Future FDD HSPA Evolution > Discussed at RAN 2#55 and RAN 2#56 > Various layer 2 protocol enhancements agreed to be described in the TR, including: • Potential introduction of a new ARQ layer above MAC-hs in Node B. • RLC protocol evolved to support flexible PDU size for DL and UL • MAC-hs protocol evolved to support segmentation for DL • Corresponding support for MACe/es in UL is FFS Slide 24

List of WIs and SIs under other WGs > 3. 84 Mcps TDD Enhanced Uplink > Continuous Connectivity for Packet Data users > MIMO Slide 25

WIs and SIs under other WGs > 3. 84 TDD Enhanced Uplink • 1 CR to 25. 331 agreed > Continuous Connectivity for Packet Data users • Discussed at RAN 2#55 and RAN 2#56 • Stage 2 CR to 25. 308 introducing CPC was agreed • First review of stage 3 CRs to 35. 331 and 25. 321 was done > MIMO • Impacts of MIMO on MAC were discussed for the first time Slide 26

Future meetings 2007 RAN#33 19 - 22 Sep US Palm Springs NA Friends of 3 GPP WG 2#55 09 -13 October 2006 Seoul Korea Samsung WG 2#56 06 - 10 Nov Riga Latvia EF 3 RAN#34 29 Nov - 01 Dec Budapest WG 2 15 -19 Jan Sorente WG 2#57 EF 3 Italy EF 3 12 -16 Feb US NA Friends of 3 GPP RAN#35 06 -09 March Europe WG 2#58 07 -11 May 2006 Japan RAN#36 29 May - 01 June Korea WG 2#59 20 -24 August 2006 Europe RAN#37 11 -14 September Riga Latvia Slide 27

Chairman’s concluding remarks > No more R 4 or R 99 corrections > No CRs on Rel-5 affecting UE implementations > Minor CRs on E-DCH, potentially not impacting UEs, E-DCH can be considered stable > MBMS almost stable also > LTE progressing, some dependencies on SA 2 & RAN WG 1 > Future work should be mainly on a few release 7 Work Items, LTE and TEI 7 > My thanks you to Claude Arzelier (ETSI MCC) and Richard Burbidge (RAN WG 2 Vice-Chairman, Motorola) for their assitance in building this status report R 99/R 4/R 5 stable, Release 6 almost stable LTE making progress, closure of Rel 7 work items in progress Please sustain efforts and keep experts active in RAN WG 2 Slide 28