gsc11_joint_15 Evolution of TD-SCDMA.ppt

Evolution of TD-SCDMA China Communications Standards Association (CCSA) Chicago, May 29th to 2nd June, 2006 SOURCE: CCSA TITLE: Evolution of TD-SCDMA AGENDA ITEM: Joint (06) 4.1 CONTACT: wangke@datangmobile.cn GSC11/JOINT(06)_15 Main Features and Potential of TD-SCDMA System; Optimizing and Improvement; Joint Detection technique; Multiple Antenna technique; High Speed Packet Access; Multimedia Broadcast and Multicast Services; Two Stages Evolution ; Contents Main features： TDD Duplex； supporting unpaired frequency ， supporting asymmetric data services; same carrier frequency，suitable for smart antenna； FDMA+TDMA+CDMA Simple and flexible Radio Resource Management； Low Chip Rate； small resource unit，soft radio； Short Code CDMA； joint detection，defending MAI and ISI； Self-Contained Time Slot Structure； channel estimate and demodulation in a single time slot，compatible technology enhancement； Potential： adapt to the development of future technology; accommodate different advanced technology； Main features and Potential of TD-SCDMA Optimizing and improvement： Joint Detection technology (JD): Node B side processing；UE side processing； Adaptive multiple antenna technology； Adaptive Array；MIMO; Special Time Slot signal processing： cell search；random access and synchronization ； High Speed Packet Access ； HSDPA；HSUPA； Multimedia Broadcast and Multicast Services； Simulcast Combing in the Same Timeslot Radio Resource Management Optimizing and Improvement JD implementation and improvement: Interference sources and system features； MAI and ISI，short code CDMA，self-contained time slot structure； JD in Node B side； combining with smart antenna；processing different interference； JD in UE side； obtain the channel assignment information；active detecting；simplified algorithms ； Advanced JD ： Intra-cell and Inter-cell interference ； improving the cell-edge performance； Combining the JD and FEC Iterative JD; combining JD Joint Detection The smart antenna technology Exp