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    • 25. 发明申请
    • QUASI-ORTHOGONAL ALLOCATION OF CODES IN TD-CDMA SYSTEMS
    • TD-CDMA系统中码的准正交分配
    • WO2007050927A3
    • 2007-07-12
    • PCT/US2006042061
    • 2006-10-27
    • QUALCOMM INCSAMBHWANI SHARAD DEEPAKSONG KEE-BONGMONTOJO JUAN
    • SAMBHWANI SHARAD DEEPAKSONG KEE-BONGMONTOJO JUAN
    • H04J11/00H04B1/7097H04B7/08H04J13/18H04Q3/26
    • H04J13/18H01Q3/26H04B1/7097H04B1/71055H04B1/71072H04B7/08H04J13/0048H04J13/0074
    • Systems and methodologies are described that facilitate increasing throughput in a time-division duplexed CDMA wireless communication environment. A set of orthogonal Walsh code sequences can be assigned to a first group of users in a network sector, and a duplicate set of orthogonal Walsh code sequences can be assigned to at least a second group of users in the sector. A number of receive antennas equal or greater than to the number of duplicate code sets being assigned can be deployed to linearly scale sector capacity to meet user demand. Additionally, user devices employing duplicate Walsh code sequence assignments at a base station serving the sector can be distinguished from each other, and timing offsets between such users can be enforced to mitigate any jamming effect at the base station receiver. Still furthermore, user device channel requirements in the sector can be continuously evaluated and an appropriate number of antennas can be dynamically deployed to provide scalable service to all such user devices.
    • 描述了有助于增加时分双工CDMA无线通信环境中的吞吐量的系统和方法。 可以将一组正交沃尔什码序列分配给网络扇区中的第一组用户,并且可以将重复的正交沃尔什码序列组分配给该扇区中的至少第二组用户。 可以部署大量等于或大于分配的重复码集数量的接收天线,以线性缩放扇区容量以满足用户需求。 另外,在服务扇区的基站处采用重复的沃尔什码序列分配的用户设备可以彼此区分,并且可以强制这些用户之间的定时偏移以减轻基站接收机处的任何干扰效应。 另外,可以连续地评估扇区中的用户设备信道需求,并且可以动态部署适当数量的天线以向所有这些用户设备提供可扩展服务。