发明名称 ACCESS POINT, WIRELESS COMMUNICATION STATION, WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD
摘要 An access point for establishing wireless connection with one or more wireless communication stations which can perform intermittent reception operation, based on a packet transmission system which allocates wireless bands by CSMA/CA, has: unit for describing, in a same packet or in respective packets, buffering information on a downlink packet addressed to a subordinate wireless communication station currently in an intermittent reception state, and transmission prohibition period information indicating a period where transmission from the subordinate wireless communication station is prohibited; unit for transmitting the instruction described packet, in which the description has been made, to the subordinate wireless communication station; unit for making a state of the access point transit to a Doze state immediately after the instruction described packet is transmitted, or when a predetermined number of downlink packets are transmitted; and unit for making a state of the access point transit to an Awake state when the transmission prohibition period elapses from the time of transmission of the packet in which the prohibition period information is described.
申请公布号 US2010054214(A1) 申请公布日期 2010.03.04
申请号 US20090549662 申请日期 2009.08.28
申请人 NTT DOCOMO, INC. 发明人 IGARASHI KEI;YAMADA AKIRA
分类号 H04W72/04;H04J3/00;H04L12/413 主分类号 H04W72/04
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