3GPP Presentation on the LTE-Advanced as an IMT-Advanced Technology Solution

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3GPP has contributed to the ITU process toward IMT since its foundation in 1998 and this cooperation proved to be extremely successful.

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Nội dung Text: 3GPP Presentation on the LTE-Advanced as an IMT-Advanced Technology Solution

ITU-R IMT-Advanced Workshop 7 October 2008 Seoul, Korea 3GPP Presentation on the LTE-Advanced as an IMT-Advanced Technology Solution (RP-080756) 1
3GPP – ITU collaboration: a ten-year successful track record! 3GPP has contributed to the ITU process toward IMT since its foundation in 1998 and this cooperation proved to be extremely successful. With specific reference to IMT-Advanced, 3GPP has actively supported the ITU activity since the early stages of the work in both W P 8F and WP 5D, and also at the previous workshop in Kyoto in 2007 where LTE was presented as a foundation for the LTE-Advanced 2
Toward IMT-Advanced: As highlighted in the next slide, the ITU-R and 3GPP timelines are well aligned. In particular, 3GPP foresees: An “Early Proposal” submission agreed at RAN #41 (9- 12 Sep 2008), for submission to W P 5D #3 (8-15 Oct 2008) A “Complete Technology” submission to be agreed at RAN #44 (26-29 May 2009), for submission to W P 5D #5 (planned for 10-17 June 2009) A “Final” submission to incorporate updates, additional specific details or feature additions, and the required self- evaluation, to be agreed at RAN #45 (22-25 Sep 2009), for submission to W P 5D #6 (planned for 13-20 Oct 2009) Source: RP-080599 3
Detailed Timelines for ITU-R Steps 1- 4 RAN # 3 9 RAN # 4 0 RAN # 4 1 RAN # 4 2 RAN # 4 3 RAN # 4 4 RAN # 4 5 RAN # 4 6 RAN # 4 7 3 /0 8 6 /0 8 9 /0 8 1 2 /0 8 3 /0 9 5 /0 9 9 /0 9 1 2 /0 9 3 /1 0 3GPP 3GPP work on ITU-R Step 2 LT E-Advanced Technology Development LTE-Advanced Specifications SI Approved 3GPP LTE- 3GPP LTE- LTE-Advanced Advanced 3GPP LTE- Advanced Specifications Complete Advanced Final Early to ITU-R Technical Submission to Submission to ~ Jan 2011 Submission to ITU-R including ITU-R 3GPP work on ITU-R Step 3 [~Release 10 ] ITU-R Updated [~RAN #50 12/10] Technology Submission Technical Submission & Initiate Required Self- 3GPP LTE- Evaluation Advanced 3GPP Q &A with evaluation Self-Evaluation groups (as required) IMT-Advanced Evaluation of Evaluation INDUSTRY ITU-R Group(s) Submissions Formed (notify ITU-R) Steps 1 & 2 W P 5D #1 W P 5D #3 W P 5D #6 Circular Letter & Development of Candidate RITs W P 5D #2 ITU-R 3/08 6 /0 8 1 0 /0 8 1 0 /0 9 3/08 to 10/09 Step 3 ITU-R Circular ITU-R Circular Submission Letter Addendum Letter 5/LCCE/2 Eval ITU-R 3/09 to 10/09 5/LCCE/2 + Process & Reports Evaluation Requirem ents Tim elines Criteria W P 5D #4 W P 5D #5 W P 5D #6 & Submission 3 /0 9 6 /0 9 1 0 /0 9 Tem plates Cutoff for Evaluation Reports Step 4 to ITU-R W P 5D #4 Evaluations June 2010 3 /0 9 6 /1 0 1/09 to 6/10 W P 5D #8 4 Source: RP-080651
The 3GPP “Early Proposal” The “Early Proposal” submission available at WP 5D #3: reinforces the relationship of the 3GPP work to IMT- Advanced confirms the 3GPP roadmap & workplan on LTE- Advanced work provides the initial 3GPP technology concept(s) under discussion/development for LTE-Advanced and as such it provides a starting point for the education/information to evaluation groups Source: RP-080763 5
LTE-Advanced Requirements and targets Requirements and targets for LTE-Advanced are captured in TR 36.913 - “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Requirements for Further Advancements for E-UTRA (LTE-Advanced) ”, and are based on the following concepts: LTE-Advanced is an evolution of LTE All relevant requirements of LTE are valid also for LTE-Advanced LTE-Advanced shall meet or exceed IMT-Advanced requirements within the ITU-R time plan Backward compatibility with E-UTRA/E-UTRAN Source: TR 36.913 & RP-080599 6
LTE Advanced Main technical features under discussion Support of wider bandwidth: Carrier aggregation, where two or more component carriers, each with a bandwidth up to 20 MHz, are aggregated, is considered for LTE-Advanced in order to support downlink transmission bandwidths larger than 20 MHz, e.g. 100 MHz. Spatial multiplexing Extension of LTE downlink spatial multiplexing to up to eight layers is considered. For the uplink spatial multiplying to up to four layers is considered. Source: RP-080500 & RP-080763 7
LTE Advanced Main technical features under discussion Coordinated multiple point transmission and reception: This feature is considered as a tool to improve the coverage of high data rates, the cell-edge throughput and/or to increase system throughput. In downlink this feature implies dynamic coordination among multiple geographically separated transmission points. Possible schemes include coordinated scheduling and/or beamforming, and joint processing/transmission In uplink this feature implies reception of the transmitted signal at multiple, geographically separated points. Scheduling decisions can be coordinated among cells to control interference. Source: RP-080500 & RP-080763 8
LTE Advanced Main technical features under discussion Relaying functionality: Relaying is considered for LTE-Advanced as a tool to improve e.g. the coverage of high data rates, group mobility, temporary network deployment, the cell-edge throughput and/or to provide coverage in new areas. Further enhanced MBMS Mobility aspects Source: RP-080500 & RP-080763 9
RAN Schedule Nov 2008 TITLE TYPE DATES LOCATION CTRY 3GPPRAN1#55 OR 10 - 14 Nov 2008 Prague CZ 3GPPRAN2#64 OR 10 - 14 Nov 2008 Prague CZ 3GPPRAN3#62 OR 10 - 14 Nov 2008 Prague CZ 3GPPRAN4#49 OR 10 - 14 Nov 2008 Prague CZ 3GPPRAN5#41 OR 10 - 14 Nov 2008 Prague CZ Dec 2008 TITLE TYPE DATES LOCATION CTRY 3GPPRAN#42 OR 2 - 5 Dec 2008 Athens GR Jan 2009 TITLE TYPE DATES LOCATION CTRY 3GPPRAN1#55-BIS OR 12 - 16 Jan 2009 EU EU 3GPPRAN2#64-BIS OR 12 - 16 Jan 2009 EU EU 3GPPRAN4#49-BIS OR 12 - 16 Jan 2009 EU EU Feb 2009 TITLE TYPE DATES LOCATION CTRY 3GPPRAN5#42 OR 9 - 13 Feb 2009 EU EU 3GPPRAN1#56 OR 9 - 13 Feb 2009 EU EU 3GPPRAN2#65 OR 9 - 13 Feb 2009 EU EU 3GPPRAN3#63 OR 9 - 13 Feb 2009 EU EU 3GPPRAN4#50 OR 9 - 13 Feb 2009 EU EU M ar 2009 TITLE TYPE DATES LOCATION CTRY 3GPPRAN#43 OR 3 - 6 Mar 2009 Biarritz FR 3GPPRAN1#56-BIS OR 23 - 27 Mar 2009 3GPPRAN2#65-BIS OR 23 - 27 Mar 2009 3GPPRAN4#50-BIS OR 23 - 27 Mar 2009 3GPPRAN3#63-BIS OR 24 - 27 Mar 2009 Apr 2009 TITLE TYPE DATES LOCATION CTRY 3GPPRAN5#43 OR 20 - 24 Apr 2009 10
Process toward next steps… 3GPP in its normal working methods considers the views and contributions from its many members as the basis for the discussion towards the development of final specifications for the technology Hence at this stage of the work in 3GPP, many views are coming forward For example: At recent 3GPP RAN Working Group Meetings on Physical Layer, more than 130 contributions, many at the detailed level, have contributed to substantial progress on LTE-Advanced This is a key strength of the 3GPP process: the resulting conclusions are able to take best advantage of the crucial ideas for the development of a premier IMT-Advanced technology solution 11