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    • 2. 发明公开
    • Method and apparatus for spectrum access of secondary users in cognitive radio system
    • Verfahren,Vorrichtung und Systemfürden Spektrumszugang vonSekundärbenutzernin einem kognitiven Funksystem
    • EP2205016A1
    • 2010-07-07
    • EP10150127.8
    • 2010-01-05
    • Huawei Technologies Co., Ltd.
    • Gan, XiaoyingLong, XinZhang, WeiZhou, Yuan
    • H04W16/14
    • H04W16/14
    • A method and apparatus for spectrum access of secondary users in a cognitive radio system are provided. The method includes: estimating parameters of a primary channel according to the Markov model used by the primary channel; selecting a primary channel that has the largest available bandwidth according to the estimated channel parameters when multiple primary channels exist; detecting the selected primary channel; and accessing the primary channel to transmit data when the channel is idle. Therefore, an optimum primary channel can be selected from multiple primary channels by estimating channel parameters to satisfy high data transmission requirements and improve system performance.
    • 提供了一种在认知无线电系统中次要用户频谱接入的方法和装置。 该方法包括:根据主信道使用的马尔可夫模型估计主信道的参数; 当存在多个主要信道时,根据估计的信道参数选择具有最大可用带宽的主信道; 检测所选择的主要信道; 并且当信道空闲时,访问主信道以发送数据。 因此,通过估计信道参数以满足高数据传输要求并提高系统性能,可以从多个主信道中选择最佳主信道。