1. Nakamura, Takaharu / Fujitsu Issam Toufik/ MCC technical support
DRAFT-RP
TSG-RAN meeting #48 Seoul, Korea, Jun.1-4, 2010
RAN-WG4 Report
Nakamura, Takaharu / Fujitsu
Chairman
Issam Toufik/ MCC technical support

2. Meeting statistics/Summary and Work load analysis (Incl
Meeting statistics/Summary and Work load analysis (Incl. CR summary, WI/SI status etc.)
*tdoc and CR statistics are as of May 25

3. Meeting statistics
- One ordinary & one AH meeting were held since the last RAN plenary meeting
Massive discussions took place after RAN#47 and the RAN4 meetings.
- One ordinary and one ad-hoc meeting are planned before the next plenary.
- RAN4 officials:
Chair: Mr. Takaharu Nakamura, Fujitsu / ARIB
Vice Chair: Mr. Edgar Fernandes, Motorola / ETSI
Vice Chair: Mr. Christian Bergljung, ST-Ericsson / ETSI
MCC Support: Dr. Issam Toufik, ETSI
Meeting
Date
Place
Host
Delegates
Tdocs
AH#10-02
12 – 16 Apr.
Dublin, IE
ETSI
around 80
479
R4#55
10 – 14 May
Montreal, CA
NAF3
around 120
789
Meeting
Date
Location
Host
RAN4-AdHoc
28 Jun. -2 Jul, 2010
Bratislava, SK
EF3
RAN4#56
23 – 27 Aug. 2010
Madrid, ES

4. Adhoc # in April
479 tdocs for limited subjects were submitted and handled.
Tdocs agreed at the adhoc were reviewed in R4#55 and ratified in an efficient manner.
Topics handled in the adhoc:
Rel-8 or earlier (maintenance activities)
TD-SCDMA (TEI for earlier releases), UE demod (Rel-8 CSI)
Rel-9 WI (if remains)
DL-Beam forming, Mobility enhancement, Positioning Support for LTE [LCS_LTE], MSR Test configuration, eMBMS, UE demodulation performance requirements (Rel-9)
Rel-10 WI
Carrier aggregation (IMT-A), Relay (IMT-A), 4 carrier HSDPA, UL-MIMO for LTE, Fixed Wireless Customer-Premises Equipment (CPE), RF Requirements
New frequency bands (rel. independent)
UMTS/LTE3500, European 800 (as a maintenance activity)
Study Item
MIMO-OTA

5. R4#55 in May
789 tdocs (as of May 25) were submitted as a whole. Slightly decreased from R4#54 due to the adhoc discussions in April, or because of the stabilizations of the works in rel-9 and ealier.
Still higher work load is observed. Sessions started from early morning and lasted till late evening.
Some of the tdocs were covered only in the ad-hocs and some of the ad-hoc sessions were run in parallel.
35 tdocs were not handled and carried over to future meetings. (Slightly improved from R4#54.)
Thanks for those participated from early morning to late evening sessions.

6. In the future RAN4 meetings, none or less e-mail discussions
approval process after RAN#47 (see R ):
ITU-R submission related tdocs: Update of M.1457, M.1580, M.1581, M.2039, IMT.MITIGATION and M.2116.
Response LS to Metro Ethernet Forum (Finally approved in R4#55 capturing information from RAN3 as well.)
approval/review after RAN4 adhoc in April (see R ):
Outgoing LS on ‘relay’ and ‘Carrier aggregation’, Text proposals for Carrier Aggregation TR and ‘way forward for LTE-A UE categories/capabilities’.
discussion after RAN4 #55 in May:
Totally 78 tdcos were reviewed or approved in the exploder.
Additional approval process took place since two out going LS were missing from the tdoc list for the first approval process.
Unfortunate exploder accident: The IT problem on the exploder happened in May made impossible to approve several tdocs (eg. out-going LS) in time and impacted the progress of the discussions very much.
In the future RAN4 meetings, none or less discussions
are expected since most of the ‘remaining works’ or ‘necessary maintenances’ in Rel-8/Rel-9 have been fixed this time.

7. Number of tdocs per agenda items in R4#55
Work load analysis
Half of the work load is for ‘maintenance’ of the earlier releases. LTE-Advanced related work shares 20%.
Tdoc statistics in R4#55
Rel-7/8 maintenance work: 3%
LTE maintenance: 17%
MSR: 12%
HNB: 13%
LTE-Advanced (Rel-10): 20%
Study items : %
Number of tdocs per agenda items in R4#55

8. Work load analysis (cont’)
Meeting arrangement plan:
R4 AH in June:
Limited technical discussions on LTE-Advanced (CA, Relay) etc.
Possible parallel sessions
R4#56 in August
To review and ratify agreement in January AH.
Possible parallel AH sessions
Earlier tdoc submission would help the progresses in the meetings much.

9. CR summary Release 99 & Rel.-6 : No CRs  Rel-7: (Cat F:4)
RRM on LCR TDD
Rel-8 (Cat.F:34)
LTE-RF (UE,BS,RRM) CRs
Rel-9 (Cat.B:9,Cat.F:39,Cat.D:2)
LTE-RF 12 CRs
MSR 11 CRs
LCS for LTE 5 CRs
Eu800MHz band 3 CRs
TEI CRs
Others CRs
Rel-10 (Cat.B:10)
LCR HNB CRs
RF scenario TR (LTE-A) 1 CR
Number of agreed CRs (as per Release & category)
Number of agreed CRs (as per WI)

10. WI/SI status summary (for information)

11. Work Item status (RAN4 leads) [1/2]
Name
SI/WI
Compl. %
E.C.D
UMTS/LTE 3500 WI
57 → 60
June 2010
RF requirements for Multicarrier and Multi-RAT BS
100 (Core)
60 (Test) → 85
Core: Dec 09’
Test: June 2010
UE OTA conformance testing methodology- Laptop Mounted Equipment Free Space test
25 → 35
Sep. 2011
Four carrier HSDPA
10 → 40 (Core)
0 → 5 (Perf.)
Core: Dec. 2010
Perf.: May 2011
LCR TDD Home NodeB
20 → 100 (Core)
< 20 → 20 (Test)
Core: Jun. 2010
Test: Dec. 2010
Fixed Wireless Customer-Premises Equipment (CPE)
5 → 20 (core)
0 (Perf.)
Core: Sep. 2010
Positioning Support for LTE
95 → 100 (core)
0 (Test, R5.)
Test: Mar. 2011
A-GNSS Minimum Performance for UTRAN
70 → 80 (R4)
Sep. 2010
Carrier Aggregation for LTE(IMT-A) - performance part
0 → 15 (Core)
0 (Perf)
Test: Jun. 2011
Enhanced Downlink MIMO
0 →

12. Work Item status (RAN4 leads) [2/2]
Name
SI/WI
Compl. %
E.C.D
LTE UL MIMO WI
20→ 55 (Core)
0 → 5 (Perf.)
Core: Dec. 2010
Perf: Jun. 2011
Relays for LTE
0 → 15 (Core)
0 (Test)
Test: Mar. 2011
Enhanced ICIC for non-CA based deployments of heterogeneous networks for LTE
New→ (Core)
New → (Perf.)
LTE TDD in 2600MHz for USA (Region 2)
New→ 20 (Core)
New → 0 (Perf.)
Perf: Dec. 2010
Add 2 GHz band LTE for ATC of MSS in North America
New→ 10 (Core)
New → 5 (Perf.)
Add L-Band LTE for ATC of MSS in North America
New→ 5 (Core)
LTE Self Optimizing Networks (SON) enhancements
MU-MIMO for 1.28Mcps TDD
Perf: Mar. 2010
Performance Requirements for two-antenna 1.28Mcps TDD Type 1 and Type 2 UE receiver
New→ 100 (Core)
New → 25 (Perf.)
Core: Jun. 2010
Perf: Dec. 2010

13. Study Item status (RAN4 leads)
Name
SI/WI
Compl. %
E.C.D.
Measurement of radiated performance for MIMO and multi-antenna reception for HSPA and LTE terminals SI
55 → 85
June 2010
→ Dec. 2010*
Extending 850MHz
10 → 35
→ Dec. 2010
Uplink Tx Diversity for HSPA
5 → 100 (R4)
* The SI for MIMO-OTA will be kept on hold by October 2010.

14. Rel-7/Rel-8 maintenance
Work load is decreasing. LTE UE performance requirements for CSI etc. get good progress.
Rel-7:
Essential corrections on LCR TDD RRM (TS25.123):
1 CR: Inter-RAT cell change order from UTRAN TDD to GSM(GPRS)
1 CR: Triggered reporting in AWGN
2 CRs: UE uplink synchronization control
Rel-8
Maintenance of LTE (TS36.101, , , , , )
16 CRs: UE RF requirements, Performance requirements for CSI etc.
6 CRs: BS RF requirements and conformance test specification
12 CRs: Radio Resource Managements

15. Multi standard radio BS (Conformance test)
Extended Rel-9 WIs
Multi standard radio BS (Conformance test)
11 CRs for TS agreed.
‘Manufacturer’s declaration on max output power’ needs further discussion in RAN4. (R , R )
R TP for power allocation, subclause 4.8 Ericsson, Nokia Siemens Networks
R TP for manufacturers declaration, subclause Ericsson, Nokia Siemens Networks
TP in R agreed in the approval, however since GERAN decided to put off the decision on the TP, it will not be implemented to the TR and RAN4 to revisit the subject next time.
R TP for TC4 subclause Ericsson, Nokia Siemens Networks
One more meeting cycle would be needed to complete the work.

16. HeNB/HNB inbound mobilities [EHNB-RAN2]
Rel-9 WIs (cont’)
HeNB/HNB inbound mobilities [EHNB-RAN2]
4 CRs for TS and TS agreed*. (2 cat. B + 2 Cat. F)
* CR in R should have NOT been agreed since the interested parties in RAN4 concluded to postponed the decision. The situation was clarified in a late comment after the approval process.
R Add System Information acquisition requirement for inter-RAT E-UTRAN HeNB cell Samsung

17. Other Rel-9 maintenances
Decreasing but considerable Work load.
LTE-RF: 12 CRs (2 Cat.B + 10 Cat. F)
LCS for LTE: 5 CRs (5 Cat.B)
Eu 800MHz band: 3 CRs
TEI-9: 8 CRs (7 Cat.F + 1 Cat.D)

18. New Frequency bands UMTS/LTE European 800MHz band (Band XX/20)
2 Cat F CRs agreed. (Cat. F for TS36.101, LTE-RF)
UL configuration for the UE receiver sensitivity requirement
RAN4 has been discussing the technical aspect for the last few months.
CR in R proposed as the way forward.
Counter CR was proposed in R in R4#55.
Point of the discussion: Whether ‘20 RBs’ or ‘25 RBs’ in UL for 10MHz BW case
R CR Band 20 Ericsson, Fujitsu, Motorola, Nokia, Qualcomm, ST-Ericsson, Deutsche Telekom, Infineon Technologies, LGE, Renesas, Samsung
R Band 20 Rx requirements Vodafone, Telefonica
Several companies eager to settle the issue by RAN#48.

19. New Frequency bands (cont’)
UMTS/LTE 3500
2 TPs for the TR agreed.
Certain progress but need further work before complete the work.
L-Band LTE for ATC of MSS in North America
Work just started.
Skeleton TR approved (Tdoc 2213)
Clarified to start with the technical works first.
2 GHz band LTE for ATC of MSS in North America
Skeleton TR approved (Tdoc 2131)
Technical and regulatory aspect reviewed. (tdoc 2180, 2230)
LTE TDD in 2600MHz for USA (Region 2)
Skeleton TR approved (Tdoc 2037)
Several technical tdocs as well as regulatory aspect reviewed. (tdoc 1800 etc.)

20. Rel-10 works
1.28 Mcps TDD Home NodeB RF requirements
9 CRs agreed.
Interference mitigation technique reviewed and agreed as the way forward.
Work for the core part completed.
1.28Mcps TDD Multi-carrier HSUPA
Analysis on UE requiremens made.
LS on ‘UE transmitter structure and power in MC-HSUPA’ approved. (Tdoc 1779).
Performance Requirements for two-antenna 1.28Mcps TDD Type 1 and Type 2 UE receiver
Type 1 and type 2 UE receiver definition agreed. (tdoc 2220)
Simulation set in tdoc 2291 agreed.
Four carrier HSDPA
Time alignment between the carriers, signaling aspect, UE Rx requirements etc. discussed.
It was agreed to create a TR to capture the priority # 1 and priority # 2 4C-HSDPA scenarios.

21. Rel-10 works Enhanced Downlink Multiple Antenna Transmission for LTE
UE categories and form factor, CSI RS boosting impact on BS transmission distortion etc. discussed.
Response LS on Reply LS on CSI RS boosting impact on BS transmission distortion approved (tdoc. 2236)
Uplink Multiple Antenna Transmission for LTE
Antenna architectures, MIMO channel models, performance requirements were discussed.
Enhanced ICIC for non-CA based deployments of heterogeneous networks for LTE
RRM scenario for HETNET discussed.
Fixed Wireless Customer-Premises Equipment (CPE)
Simulation assumptions for the work agreed (tdoc 1634)
Co-existing analysis discussed.

22. Rel-10 works
UE Over the Air (Antenna) conformance testing methodology- Laptop Mounted Equipment Free Space test
Test configurations, Dummy Lap top proposal etc. discussed.
AGNSS Minimum Performance Specification Development
TP for TS (V2.0.0) approved (tdoc 1573)
Small technical enhancement
Information paper on ‘technical requirements of Low power repeaters in Japanfrom’ (tdoc 1573,ARIB) presented.

23. Rel-10 works (LTE-Advanced)
Carrier Aggregation for LTE
Co-exisitence studies: Simulation outcomes captured in the CR (tdoc. 2225)
UE capability in CA scenario discussed.
RRM aspect studied. In RAN4#55, several tdocs were not handled due to lack of time.
UE RF requirements: Discussed in an adhoc session
Several ‘not handled tdocs’ due to lack of time.
BS RF and performance requirements: Discussed in an adhoc session
Agreed TPs captured in the TR and it was approved as V0.1.0 (tdoc 2329)

24. Rel-10 works (LTE-Advanced)
Relays for LTE
TR approved as V0.1.0 (tdoc.2285)
Deployment scenarios, synchronization requirements etc. discussed.

25. Study items Extending 850 MHz Uplink Tx Diversity for HSPA
Fair progress:
TR V0.1.0 approved (tdoc. 1587)
3 TPs for the TR agreed (tdoc. 2332, 1910, 2333)
Uplink Tx Diversity for HSPA
Surprising progress:
Most of the tdocs were only handled in adhoc sessions.
Extensive discussions took place after R4#55.
Set of TPs for the TR agreed and the latest TR to be presented to RAN.
Study in RAN4 has been completed.

26. Study items (cont’) MIMO-OTA
The Tdocs were handled in April adhoc or parallel sessions in R4#55.
9 TPs approved for the TR of SI.
It was agreed to ‘keep on hold (suspend)’ the SI for the next 4 months (not on agenda for next two meetings) but continue to use the MIMO OTA reflector for issues relating to outside bodies (COST and CTIA)
The TR was agreed to be presented to RAN for information (as V1.1.0)
There was discussion on the estimated completion level of the study in RAN4. Once the result of the first measurement campaign (either in COST2100 or CTIA) is available RAN4 may review the level of completion.

27. New WI prop. Review
Following 4 new WI proposals were reviewed. Technical Q&A and work load analysis took place.
WID proposal: 4 WID proposals were reviewed
R New Work Item Proposal : Support of New Band Combinations for Dual Band Dual Cell HSDPA in Japan SOFTBANK MOBILE
R E1900 Work Item Proposal Sprint
R E850 Work Item Proposal Sprint
R New study item proposal for Specific Absorption Rate (SAR) requirements ZTE, CATR
SID proposal on eMBMS dedicated carrier:
Not handled because the proponents were not in the meeting room.
R Draft eMBMS Dedicated Carrier Rel-10 Study Item Description IPWireless

28. Owner of TS25.317
TS “Release Independent Aspects of Band Combinations for Dual Band Dual Cell operation”
Owner of TS is currently RAN4. (No explicit discussion took place on the ownership of the specification so far.)　
Owner of the specification should be RAN2 since has the same aspect and owned by RAN2.
Ownership of the specifications for “release independent aspects” as the consequence.
TS25.307, TS > RAN2 (RAN2 signaling aspect involved)
TS > RAN4 (No signaling aspect involved)

29. R4-AH#10-03 (June) (Topics and LS handling in the adhoc)

30. LS handling in the ad-hoc
The Ad-hoc session will handle:
- All of the incoming LSs that are associated to the agenda (topics) there.
- Create and approve an outgoing LS which is associated to the agenda in the ad-hoc WITHOUT approval process.
For those interest in the agenda in the ad-hoc, please make sure not to miss the meeting.

31. Topics for R4-AH#10-03 (June)
1. Work Items [Rel.10 and beyond]
1.1 Carrier Aggregation for LTE [LTE_CA]
1.1.1 RRM (Radio Resource Management) aspects
1.1.2 UE RF requirements
1.1.3 BS RF requirements
1.2 Relays for LTE
1.3 Core requirements for Fixed Wireless CPE RF Requirements
1.4 Core requirements for UE Over the Air (Antenna) conformance testing methodology- Laptop Mounted Equipment Free Space test
1.5 Core requirements for Enhanced ICIC for non-CA based deployments of heterogeneous networks for LTE
1.6 Core requirements for Uplink Multiple Antenna Transmission for LTE

32. Topics for R4-AH#10-03 (June)
2. Maintenance of closed work items
2.1 Enhanced HSPA
2.1.1 DB-DC-HSPA
2.1.2 DC-HSUPA
2.1.3 Four carrier HSDPA
2.2 Enhancement on ISM co-existence [TEI9 or New WI?]
2.3 Performance Requirements for two-antenna 1.28Mcps TDD Type 1 and Type 2 UE receiver
2.4 MSR
2.4.1 Test configurations
2.4.2 Conformance test specification, general parts
2.4.3 Conformance test specification, requirements
2.4.4 Others

33. Topics for R4-AH#10-03 (June)
3 New frequency bands [Release independent]
3.1 UMTS/LTE 3500 [RInImp8-UMTSLTE3500]
3.2 Add L-Band LTE for ATC of MSS in North America
3.3 Add 2 GHz band LTE for ATC of MSS in North America
3.4 LTE TDD in 2600MHz for USA (Region 2)

34. Topics for R4-AH#10-03 (June)
4. Study items
4.1 Study on Extending 850 MHz [if still opened]
4.2 Study on Uplink Tx Diversity for HSPA [if still opened]
5. Close of Meeting (No later than Friday, 5 p.m.)
All the experts and interested parties are encouraged to participate the adhoc.
Brief review and ratification on AH agreement will take place at R4#56.

35. Future meetings (Meeting calendars)

36. Meeting Calendar for 2010 Meeting Date Location Host RAN4 AH #2010-01
18-22 Jan
Sophia Antipolis, FR
ETSI
RAN4 #54
22 – 26 Feb
San Francisco ,USA
NAF3
RAN #47
1６ – 19 Mar
Vienna, AT
EF3
RAN4 AH #
12-16 Apr
Dublin, IE
RAN4#55
10 – 14 May
Canada
RIM
RAN #48
1 – 4 June
Seoul, KR
Samsung
RAN4 AH #
28 Jun – 2 Jul
Bratislava, SK
RAN4#56
23 – 27 Aug
Madrid, ES
RAN #49
1４ – 17 Sep US
RAN4 AH #
11-15 Oct
Xi’an, CN
CATT
RAN4#57
15 – 19 Nov
RAN #50
7 – 10 Dec
Istanbul, TR

37. Meeting Calendar for 2011 Meeting Date Location Host
[RAN4 AH # ]
17-21 Jan
[t.b.d.]
[US?]
RAN4 #58
21 – 25 Feb
Taipei, TW
ITRI
RAN #51
Mar US
NAF3
RAN4#59
9 – 13 May
Kobe, JP
JF3
RAN #52
31 May - 3 Jun
Bratislava, SK
EF3
RAN4#60
22 – 26 Aug EU
RAN #53
13 – 16 Sep
t.b.d.
RAN#60bis
10-14 Oct
RAN4#61
14 – 18 Nov
RAN #54
6 – 9 Dec
Berin (t.b.c), DE

38. Thanks. 隆