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    • 1. 发明申请
    • Efficient bandwith request for broadband wireless networks
    • 高效带宽宽带无线网络请求
    • US20090323602A1
    • 2009-12-31
    • US12217137
    • 2008-06-30
    • Qinghua LiHujun YinYuan ZhuXiangying Yang
    • Qinghua LiHujun YinYuan ZhuXiangying Yang
    • H04W28/20H04L27/28
    • H04W72/085H04L47/14H04W72/0406H04W74/0833
    • Methods and apparatuses for scheduling transmissions between a base station and multiple user stations in a broadband wireless access network may include a subscriber station generating a bandwidth request which includes one of a limited number of available and predefined preamble sequences and a data portion identifying the resources requested. The subscriber station randomly selects a contention slot in a wireless channel, allocated by the base station, for sending a bandwidth request. The receiving base station is able to detect the preamble sequence of bandwidth requests and differentiate between subscribers even when bandwidth requests of two or more subscribers may collide by virtue of selecting the same contention slot. In this manner, latency and overhead of bandwidth requests may be improved. Additional variants and embodiments are also disclosed.
    • 用于调度宽带无线接入网络中的基站与多个用户站之间的传输的方法和装置可以包括生成带宽请求的用户站,所述用户站包括有限数量的可用和预定义的前导码序列之一,以及标识所请求的资源的数据部分 。 用户台随机选择由基站分配的用于发送带宽请求的无线信道中的竞争时隙。 接收基站能够检测带宽请求的前同步码序列并区分用户,即使当两个或多个用户的带宽请求可以通过选择相同的争用时隙而相冲突。 以这种方式,可以提高带宽请求的延迟和开销。 还公开了其它变型和实施方案。