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    • 96. 发明申请
    • METHOD AND APPARATUS FOR CODEBOOK EXCHANGE IN A MULTIPLE ACCESS WIRELESS COMMUNICATION SYSTEM
    • 多种无线通信系统中的代码交换方法与装置
    • WO2008052191A3
    • 2008-10-09
    • PCT/US2007082734
    • 2007-10-26
    • QUALCOMM INCPRAKASH RAJATSARKAR SANDIP
    • PRAKASH RAJATSARKAR SANDIP
    • H04L25/03H04B7/06
    • H04L25/03343H04B7/0417H04B7/063H04B7/0634H04B7/0639H04L2025/03426
    • Methods and apparatus are disclosed for generating and exchanging codebooks in a multiple access wireless communication system, such as Space Division Multiple Access (SDMA). The codebooks include a plurality of preferred precoding matrices. The codebooks are generated at an access network. Generating a codebook may further include generating a codebook identifier assigned by the access network. The codebooks are communicated to access terminals. Communicating the codebooks may further include querying the access terminals to determine an identity of codebooks currently stored at each access terminal, receiving a codebook status response from each of the access terminals indicating the identity of codebooks stored at each of the access terminals. The codebooks may also be assigned to access terminals for a predetermined sector in the active set of communication links. Generating a codebook may further include generating a codebook that includes identification of clusters. The clusters identify a set of the precoding matrices and, as such, a set of beams in the cluster. Thus, the clusters may identify a starting beam index and an ending beam index. The codebook may further include an overlap cluster map that indicates clusters authorized to potentially overlap.
    • 公开了用于在诸如空分多址(SDMA)的多址无线通信系统中生成和交换码本的方法和装置。 码本包括多个优选的预编码矩阵。 码本在接入网络中生成。 生成码本还可以包括生成由接入网分配的码本标识符。 码本被传送到接入终端。 沟通码本还可以包括查询接入终端确定当前存储在每个接入终端的码本的身份,从每个接入终端接收指示存储在每个接入终端的码本的身份的码本状态响应。 码本也可以被分配给有源通信链路集中的预定扇区的接入终端。 生成码本还可以包括生成包括识别簇的码本。 簇识别一组预编码矩阵,并且同样地,聚类中的一组波束。 因此,簇可以识别起始波束索引和结束波束索引。 码本还可以包括指示被授权潜在重叠的簇的重叠簇映射。