Takehiro Nakamura 3GPP TSG-RAN Chairman

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Presentation transcript:

Takehiro Nakamura 3GPP TSG-RAN Chairman ITU-R WP5D Workshop Geneva, Switzerland, 16 July, 2012 3GPP TSG-RAN Activities toward Further Enhancements for LTE/LTE-Advanced Takehiro Nakamura 3GPP TSG-RAN Chairman

Contents 3GPP Standardization Activities 3GPP LTE Release 10 and 11 3GPP TSG-RAN Workshop on Release 12 Onward Scope of the Workshop Results of the Workshop Summary of the Workshop Way forward toward 3GPP Release 12

3GPP Standardization Activities

3GPP Standardization Process 3GPP develops technical specifications for 3rd Generation and beyond mobile communication systems 3GPP Organisational Partners standardize local specifications based on the specifications developed by 3GPP The standardisation process in each OP is only a form of transposition and that no technical changes are introduced ITU Recommendations Partners ITU Existing process Organisational Partners(OP) Market Representation Partners(MRP) 4G Americas, CDG, COAI, GSA, GSM Association, IMS Forum, Info Communication Union, IPV6 Forum, NGMN Ltd., Small Cell Forum, TDIA, TD-SCDMA Forum, UMTS Forum Member companies Technical proposals and contributions Technical specifications Local specifications Standardisation process in each OP

Membership of 3GPP The membership in 3GPP includes: the 6 Organizational Partner SDOs, 389 Individual Member companies, 13 Market Representation Partners, 10 Guests, and 3 Observer entities. The detailed listing is on the web site: http://webapp.etsi.org/3gppmembership/QueryForm.asp (Select ‘All partners’)

Standardisation Organisations Communicating with 3GPP Developing internet protocol specs Developing Recommendations Referring to specs ITU-R/T Developing Mobile application specs Developing Wireless LAN/MAN specs Input specs Cross reference of specs Requirements MRP Referring to 3GPP specs (contributed by individual members) Cross reference of specs Terminal certification based on 3GPP specs Partners of 3GPP Referring to 3GPP specs for the local specs Terminal Certification Organisational Partners EU Japan Korea China North America

Technical Specification 3GPP Structure Technical Specification Group Working Group UTRA/E-UTRA

Release of 3GPP specifications 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 Release 99 W-CDMA Release 4 1.28Mcps TDD Release 5 HSDPA Release 6 HSUPA, MBMS Release 7 HSPA+ (MIMO, HOM etc.) ITU-R M.1457 IMT-2000 Recommendation Release 8 LTE Release 9 Minor LTE enhancements ITU-R M.2012 IMT-Advanced Recommendation Release 10 LTE-Advanced Release 11 3GPP TSG-RAN Workshop on Release 12 onward held on June 11-12, 2012

3GPP LTE Release 10 and 11

Key Features in Release 10 Support of Wider Bandwidth(Carrier Aggregation) Use of multiple component carriers(CC) to extend bandwidth up to 100 MHz Common physical layer parameters between component carrier and LTE Rel-8 carrier Improvement of peak data rate, backward compatibility with LTE Rel-8 Advanced MIMO techniques Extension to up to 8-layer transmission in downlink Introduction of single-user MIMO up to 4-layer transmission in uplink Enhancements of multi-user MIMO Improvement of peak data rate and capacity Heterogeneous network and eICIC(enhanced Inter-Cell Interference Coordination) Interference coordination for overlaid deployment of cells with different Tx power Improvement of cell-edge throughput and coverage Relay Type 1 relay supports radio backhaul and creates a separate cell and appear as Rel. 8 LTE eNB to Rel. 8 LTE UEs Improvement of coverage and flexibility of service area extension 100 MHz f CC

Key Features in Release 11 (1) Carrier aggregation (CA) enhancements Additional carrier type (Non-backward compatible carrier) to enhance spectrum efficiency, improve support for HetNet Different TDD UL/DL configuration on different band Multiple timing advances for UL CA Enhanced downlink control channel (E-PDCCH) Enhanced DL control channel to support increased control channel capacity, additional carrier type, freq. domain ICIC, beamforming and/or diversity CoMP transmission and reception CoMP for Homogeneous/Heterogeneous NW Enhancement on DL/UL reference signal, control signal Channel state information feedback and measurement Further enhanced inter-cell interference coordination (FeICIC) Interference cancelation technique for UE (e.g., CRS canceller from Macro-cell) Non-zero power transmission for almost blank subframe Improved minimum performance requirements for E-UTRA: Interference rejection Interference rejection combining (IRC) UE receiver PDCCH CRS DM-RS E-PDCCH CC1 (Legacy carrier) CC2 (Additional carrier type) Coordination Optical fiber

Key Features in Release 11 (2) Enhancement of Minimization of Drive Tests (MDT) Intention is to provide mechanisms to collect radio measurements together with location information from eNB/UE to reduce operator costs for performing manual drive tests Rel-10: Radio signal reception level measurements (e.g. RSRP/RSRQ) specified Rel-11: QoS measurements (e.g. throughput, traffic volume) will be specified RAN overload control for Machine-Type Communications (MTC) Intention is to protect the NW from potentially very large number of MTC terminals Rel-10: Extended wait time (backoff time) indication in RRC connection reject specified CN overload avoidance specific to MTC terminals made possible Rel-11: Extended access barring in broadcast specified CN/RAN overload avoidance specific to MTC terminals made possible Further self optimizing networks (SON) enhancements Intention is to provide mechanisms to facilitate network optimization Rel-9/10: Procedures for intra-RAT MRO / MLB specified MRO: Mobility Robustness Optimisation MLB: Mobility Load Balancing Rel-11: Procedures for inter-RAT MRO will be specified Network Energy Saving Intention is to provide mechanisms to facilitate network energy saving Rel-9/10: Procedures for intra-RAT energy saving specified Rel-11: Procedures for inter-RAT energy saving will be specified LTE RAN Enhancements for Diverse Data Applications Intention is to study and possibly specify RAN improvements considering various data traffic, e.g. those generated by smartphones Further enhancements to H(e)NB mobility Support of macro to HNB enhanced Hard Handover Mobility and soft handover Support of enhanced mobility between macro – open HeNB, macro – hybrid HeNB, open HeNB – hybrid HeNB, and hybrid HeNB – hybrid HeNB

3GPP TSG-RAN Workshop on Release 12 Onward

“ ” Scope of The Workshop Scope of the workshop was approved at RAN#55 meeting in March 2012 as follows: The goal of the workshop is to investigate what are the main changes that could be brought forward to evolve RAN toward Release 12 and onward. It is recommended that presentations in the workshop include views on: Requirements Potential technologies Technology roadmap for Releases 12, 13 and after The discussions from the workshop should be used to define the work plan for Release 12 and onward in TSG-RAN. “ ”

Results of the Workshop TSG-RAN Workshop on Release 12 Onward, June 11-12, 2012 in Ljubljana, Slovenia About 250 participants 43 presentations Detailed information and all contributions are found at following link: http://www.3gpp.org/Future-Radio-in-3GPP-300-attend Summary of the workshop provided by TSG-RAN chairman before close of the workshop are shown in following slides

Summary of the Workshop Requirements Common and converged requirements identified Capacity increase to cope with traffic explosion Energy saving Cost efficiency Support for diverse application and traffic types Higher user experience/data rate Backhaul enhancement

Summary of the Workshop Potential Technologies (1) A great majority showed interest in Enhanced Small Cell for LTE. Technologies proposed by many members are: Interference coordination / management Dynamic TDD Enhanced discovery / mobility Frequency separation between macro and small cells with higher frequency band, e.g. 3.5 GHz band, for the small cells Inter site CA / macro cell assisted small cells Wireless backhaul for small cell Dense urban Shopping mall Hotspot Existing cellular bands (high power density for coverage) Higher frequency bands (wider bandwidth for high data rate) Freq. Very wide @e.g. > 3GHz

Summary of the Workshop Potential Technologies (2) Very clear interest related to LTE Multi-Antenna/site technologies such as: 3D MIMO/beamforming to allow beam control in both horizontal and vertical directions Further CoMP/MIMO enhancements New procedures and functionalities for LTE to support diverse traffic types proposed by many members Control signaling reduction, etc.

Summary of the Workshop Potential Technologies (3) Good interest in: Interworking with WiFi Continuous enhancements for: Machine type communications(MTC) Self-organizing network(SON) Minimization of drive test(MDT) Advanced receiver Device to Device(D2D) Further enhancements for HSPA including interworking with LTE

Way Forward Toward 3GPP Release 12 Release 12 time plan was decided at TSG-SA#56 meeting in Jun. 2012 as follows: Stage 2 freezing target December 2013 Stage 3 freezing target June 2014, i.e. 21 months between Release 11 stage 3 freezing and Release 12 stage 3 freezing New WI/SI proposal toward Release 12 will be treated at TSG-RAN#57 meeting in Sep. 2012 and after Study Items and Work Items for key topics presented in the Workshop will be proposed Approval of the Study Items and Work Items will depend on remaining work for Release 11 and priority taking into account summary of the workshop Some study toward Release 12 might be started from Sep. 2012 and many of the work for Release 12 will be started from Dec. 2012 or Mar. 2013. In the workshop, it was identified that majority of companies have great interest in small cell enhancements. To clarify the scope of the enhancements, email discussion on the requirements and deployment scenario for small cell enhancements will take place before TSG-RAN#57 meeting in Sep. 2012

Thank You www.3gpp.org Takehiro Nakamura 3GPP TSG-RAN chairman nakamurata@nttdocomo.co.jp More Information about 3GPP: www.3gpp.org contact@3gpp.org