发明授权
- 专利标题： Power saving in a contention and polling system communication system
- 专利标题（中）： 竞争和轮询系统通信系统中的省电
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申请号： US08775883申请日： 1997-01-02
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公开(公告)号： US06346873B1公开(公告)日： 2002-02-12
- 发明人: Noriyuki Suzuki , Kazutoshi Shimada , Eisaku Tatsumi , Shinichi Sunakawa , Katsuhiko Nagasaki
- 申请人： Noriyuki Suzuki , Kazutoshi Shimada , Eisaku Tatsumi , Shinichi Sunakawa , Katsuhiko Nagasaki
- 优先权： JP4-165329 19920601; JP5-120594 19930423
- 主分类号： H04Q100
- IPC分类号： H04Q100
摘要：
A parent node transmits a third specific message to child nodes as a broadcast message if a first specific message indicating the start of the child node collides with another message so that normal receiving cannot be performed. Then, the parent node sequentially transmits second specific messages to each child node and then receives responses to recognize the states of the children nodes. The parent node transmits a specific message indicating a realization of a sleeping state as a broadcast message to the children nodes, followed by transmitting a specific message when data to be transmitted from the child node has been generated. The parent node cancels the sleeping state when it receives the specific message.
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