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    • 9. 发明申请
    • METHOD TO QUITE HIDDEN NODES
    • 查询隐藏点的方法
    • US20100091717A1
    • 2010-04-15
    • US12251133
    • 2008-10-14
    • Jeffrey D. BontaGeorge Calcev
    • Jeffrey D. BontaGeorge Calcev
    • H04W48/02
    • H04W74/08H04L1/1607H04W24/00H04W72/00
    • A method and apparatus for quieting multiple channels on unlicensed spectrum is provided herein. During operation, a cluster head (or centralized controller such as a base station) will listen to determine if channels exist without primary system traffic. A message will then be sent out by the cluster head quieting the channels. All secondary nodes in the cluster will transmit a CTS-to-self if they do not hear any traffic by any primary system node (which may be nodes out of range of the cluster head) on the channels, otherwise they send a NAK on channels not being used by the hidden nodes. If a NAK is received by the cluster head, the process repeats until no NAK has been received. After the primary system is quieted, a poll message is sent by the cluster head to nodes instructing them to send a CTS-to-Self message so that the spectrum is quieted for the period indicated in the message.
    • 本文提供了一种用于在未许可频谱上静音多个信道的方法和装置。 在操作期间,簇头(或诸如基站的集中式控制器)将监听以确定是否存在通道,而不存在主要系统流量。 然后,群集头将发送一个消息,将信道发送出去。 群集中的所有辅助节点如果通道上没有任何主系统节点(其可能是簇头的范围之外的节点)没有听到任何流量,则将传输CTS到自身,否则它们在信道上发送NAK 不被隐藏的节点使用。 如果簇头接收到NAK,则该过程重复,直到没有接收到NAK。 在主系统静音之后,群集头发送轮询消息,指示节点发送CTS到自己的消息,使频谱在消息中指示的时间段内安静。