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    • 8. 发明申请
    • METHOD AND APPARATUS FOR ORTHOGONAL PILOT TONE MAPPING IN MULTIPLE-IN AND MULTIPLE-OUT (MINO) AND SPATIAL DIVISION MULTIPLE ACCESS ( SDMA) SYSTEMS
    • 用于多路和多路(MINO)和空间多路访问(SDMA)系统中的正交导频色调映射的方法和装置
    • WO2010093897A2
    • 2010-08-19
    • PCT/US2010/024067
    • 2010-02-12
    • QUALCOMM INCORPORATEDVAN ZELST, AlbertVAN NEE, Didier, Johannes Richard
    • VAN ZELST, AlbertVAN NEE, Didier, Johannes Richard
    • H04L5/00
    • H04B7/0447H04B7/0689H04L5/0048
    • Methods and apparatus for orthogonal pilot tone mapping in Multiple-In and Multiple-Out (MIMO) and Spatial Division Multiple Access (SDMA) systems are disclosed. An aspect of the method includes identifying a plurality of symbol periods within which symbols representing encoded data are to be transmitted in a plurality of spatial streams over a communication channel; identifying a plurality of pilot tone values for a plurality of pilot tones in the plurality of symbol periods to create a pilot tone mapping, wherein the identified pilot tone values are such that a receiver, when receiving at least some of the plurality of pilot tones, is provided with signals enabling the receiver to characterize and mitigate any communication impairments, and potentially obtain transmit spatial stream diversity benefits, wherein at least two of the pilot tone values in the pilot tone mapping are orthogonal when the symbols are combined over at least one dimension; and transmitting the symbols and the plurality of pilot tones over the plurality of spatial streams for the plurality of symbol periods.
    • 公开了多输入多输出(MIMO)和空分多址(SDMA)系统中的正交导频音调映射的方法和装置。 该方法的一个方面包括识别多个符号周期,在多个符号周期内,通过通信信道在多个空间流中发送表示编码数据的符号; 识别多个符号周期中的多个导频音调的多个导频音调值,以创建导频音调映射,其中所识别的导频音调值使得接收机在接收到多个导频音调中的至少一些时, 被提供有使得接收机能够表征和减轻任何通信损伤并且潜在地获得发射空间流分集益处的信号,其中当符号在至少一维上被组合时,导频色调映射中的至少两个导频音值是正交的 ; 以及在多个符号周期的多个空间流上发送符号和多个导频音调。