Efficient bandwith request for broadband wireless networks
    31.
    发明申请
    Efficient bandwith request for broadband wireless networks 审中-公开
    高效带宽宽带无线网络请求

    公开(公告)号:US20090323602A1

    公开(公告)日:2009-12-31

    申请号:US12217137

    申请日:2008-06-30

    IPC分类号: H04W28/20 H04L27/28

    摘要: 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.

    摘要翻译: 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。

    Techniques for quick access channel information loading in wireless networks
    33.
    发明授权
    Techniques for quick access channel information loading in wireless networks 失效
    用于在无线网络中快速访问信道信息加载的技术

    公开(公告)号:US08718080B2

    公开(公告)日:2014-05-06

    申请号:US13301169

    申请日:2011-11-21

    CPC分类号: H04L5/0007 H04L5/0053

    摘要: An embodiment of the present invention provides a method of quick access channel information loading in wireless networks, comprising mapping at least one quick access channel to one distributed resource unit of control tiles, said control tiles being spread across consecutive sub-carriers and consecutive OFDMA symbols, wherein each control tile and a predetermined number of sub carriers are used to send a bandwidth indicator and a predetermined number of sub carriers are used to send a bandwidth request message, and wherein there exist unique orthogonal sequences for the bandwidth indicator and each of the sequences are capable of being selected as a preamble sequence.

    摘要翻译: 本发明的一个实施例提供了一种在无线网络中快速访问信道信息加载的方法,包括将至少一个快速接入信道映射到控制瓦片的一个分布式资源单元,所述控制瓦片跨越连续的子载波和连续的OFDMA符号 ,其中每个控制块和预定数量的子载波用于发送带宽指示符,并且使用预定数量的子载波来发送带宽请求消息,并且其中存在唯一的用于带宽指示符的正交序列,并且每个 序列能够被选择为前导码序列。

    TECHNIQUES FOR QUICK ACCESS CHANNEL INFORMATION LOADING IN WIRELESS NETWORKS
    38.
    发明申请
    TECHNIQUES FOR QUICK ACCESS CHANNEL INFORMATION LOADING IN WIRELESS NETWORKS 失效
    在无线网络中快速访问信道信息加载的技术

    公开(公告)号:US20120063442A1

    公开(公告)日:2012-03-15

    申请号:US13301169

    申请日:2011-11-21

    IPC分类号: H04B7/208

    CPC分类号: H04L5/0007 H04L5/0053

    摘要: An embodiment of the present invention provides a method of quick access channel information loading in wireless networks, comprising mapping at least one quick access channel to one distributed resource unit of control tiles, said control tiles being spread across consecutive sub-carriers and consecutive OFDMA symbols, wherein each control tile and a predetermined number of sub carriers are used to send a bandwidth indicator and a predetermined number of sub carriers are used to send a bandwidth request message, and wherein there exist unique orthogonal sequences for the bandwidth indicator and each of the sequences are capable of being selected as a preamble sequence.

    摘要翻译: 本发明的一个实施例提供了一种在无线网络中快速访问信道信息加载的方法,包括将至少一个快速接入信道映射到控制瓦片的一个分布式资源单元,所述控制瓦片跨越连续的子载波和连续的OFDMA符号 ,其中每个控制块和预定数量的子载波用于发送带宽指示符,并且使用预定数量的子载波来发送带宽请求消息,并且其中存在用于带宽指示符的唯一正交序列,并且每个 序列能够被选择为前导码序列。

    Techniques for quick access channel information loading in wireless networks
    39.
    发明授权
    Techniques for quick access channel information loading in wireless networks 失效
    用于在无线网络中快速访问信道信息加载的技术

    公开(公告)号:US08064476B2

    公开(公告)日:2011-11-22

    申请号:US12378390

    申请日:2009-02-13

    CPC分类号: H04L5/0007 H04L5/0053

    摘要: An embodiment of the present invention provides a method of quick access channel information loading in wireless networks, comprising mapping at least one quick access channel to one distributed resource unit of control tiles, said control tiles being spread across consecutive sub-carriers and consecutive OFDMA symbols, wherein each control tile and a predetermined number of sub carriers are used to send a bandwidth indicator and a predetermined number of sub carriers are used to send a bandwidth request message, and wherein there exist unique orthogonal sequences for the bandwidth indicator and each of the sequences are capable of being selected as a preamble sequence.

    摘要翻译: 本发明的一个实施例提供了一种在无线网络中快速访问信道信息加载的方法,包括将至少一个快速接入信道映射到控制瓦片的一个分布式资源单元,所述控制瓦片跨越连续的子载波和连续的OFDMA符号 ,其中每个控制块和预定数量的子载波用于发送带宽指示符,并且使用预定数量的子载波来发送带宽请求消息,并且其中存在唯一的用于带宽指示符的正交序列,并且每个 序列能够被选择为前导码序列。