Method and apparatus of controlling access mode for communication system using shared or unlicensed band
    1.
    发明授权
    Method and apparatus of controlling access mode for communication system using shared or unlicensed band 有权
    控制使用共享或非授权频带的通信系统的接入方式的方法和装置

    公开(公告)号:US08681765B2

    公开(公告)日:2014-03-25

    申请号:US12133469

    申请日:2008-06-05

    IPC分类号: H04J3/00 H04B7/212 H04B7/00

    CPC分类号: H04W74/02

    摘要: A technology that can adaptively control an access mode according to a shared band or an unlicensed band used by an adjacent communication system. An access mode controlling apparatus includes a band recognition unit to recognize a usage rate of an unlicensed band or a shared band that is used by an adjacent communication system of a target communication system; a mode determination unit to determine, as an access mode, any one of a contention access mode and a contention-free access mode, based on the usage rate of the unlicensed band or the shared band; and an information transmitter to transmit mode information associated with the determined access mode to member nodes or a base station of the target communication system.

    摘要翻译: 可以根据相邻通信系统使用的共享频带或非许可频段自适应地控制接入模式的技术。 访问模式控制装置包括:频带识别单元,用于识别由目标通信系统的相邻通信系统使用的非许可频带或共享频带的使用率; 模式确定单元,基于所述未许可频带或所述共享频带的使用率,确定竞争接入模式和无竞争接入模式中的任何一个作为接入模式; 以及信息发送器,用于将与确定的接入模式相关联的模式信息发送到目标通信系统的成员节点或基站。

    Device to sense frequency band to share operating frequency bands in heterogeneous communication systems and method thereof
    7.
    发明授权
    Device to sense frequency band to share operating frequency bands in heterogeneous communication systems and method thereof 失效
    用于感测频带以在异构通信系统中共享工作频带的设备及其方法

    公开(公告)号:US08121630B2

    公开(公告)日:2012-02-21

    申请号:US12422693

    申请日:2009-04-13

    IPC分类号: H04B7/00

    CPC分类号: H04W16/14

    摘要: A cognitive radio communication device and method are provided. The cognitive radio communication device includes a reception unit to receive reference signals from a first communication device, a frequency division unit to divide operating frequency bands of the first communication device into a plurality of sub frequency bands, a first sensing unit to sense each of the plurality of sub frequency bands using the reference signals to estimate whether the first communication device uses each of the plurality of sub frequency bands, and to determine an unused frequency band group including at least one sub frequency band not used by the first communication device based on the estimated result, and a transmission unit to transmit data to a second communication device using the sub frequency band included in the unused frequency band group.

    摘要翻译: 提供了一种认知无线电通信装置和方法。 认知无线电通信设备包括:接收单元,用于从第一通信设备接收参考信号;分频单元,用于将第一通信设备的工作频带划分为多个子频带;第一感测单元,用于感测每个 使用参考信号来估计多个子频带,以估计第一通信设备是否使用多个子频带中的每一个,并且基于基于第一通信设备的第一通信设备不使用的至少一个子频带来确定未使用的频带组 估计结果,以及使用包含在未使用频带组中的子频带向第二通信装置发送数据的发送单元。

    Apparatus and method for radio communication
    8.
    发明授权
    Apparatus and method for radio communication 有权
    无线电通信的装置和方法

    公开(公告)号:US08103217B2

    公开(公告)日:2012-01-24

    申请号:US12428833

    申请日:2009-04-23

    IPC分类号: H04W74/00

    CPC分类号: H04W4/20

    摘要: An apparatus and a method of performing radio communication are provided. The radio communication apparatus may determine a channel capacity of a radio channel based on a sensing duration to sense the radio channel and a false alarm probability, determine a sensing duration value and a false alarm probability value that maximize the channel capacity, and sense the radio channel based on the determined sensing duration value and the false alarm probability value.

    摘要翻译: 提供了一种执行无线电通信的装置和方法。 无线电通信装置可以基于感测持续时间来确定无线电信道的信道容量以感测无线电信道和假警报概率,确定感测持续时间值和使信道容量最大化的假警报概率值,并且感测无线电 基于所确定的感测持续时间值和假警报概率值的信道。