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    • 5. 发明公开
    • Efficient bandwidth request for broadband wireless networks
    • Effiziente Bandbreitenanforderungfürdrahtlose Breitbandnetze
    • EP2141869A1
    • 2010-01-06
    • EP09164065.6
    • 2009-06-29
    • Intel Corporation
    • Li, QinghuaYang, XiangyingYin, HujunZhu, Yuan
    • H04L12/56H04W72/04
    • H04W72/085H04L47/14H04W72/0406H04W74/0833
    • Methods (200) and apparatuses (500) for scheduling transmissions between a base station and multiple user stations in a broadband wireless access network may include a subscriber station generating (215) a bandwidth request which includes one of a limited number of available and predefined preamble sequences (210) and a data portion identifying the resources requested. The subscriber station randomly selects (205) 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 (220) 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(200)和装置(500)可以包括生成(215)带宽请求的用户站,所述带宽请求包括有限数量的可用和预定义前导码之一 序列(210)和标识所请求的资源的数据部分。 用户台随机选择(205)由基站分配的无线信道中的竞争时隙,用于发送带宽请求。 接收基站能够检测(220)带宽请求的前导码序列并区分用户,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等待时间和开销。 还公开了另外的变型和实施例。