发明授权
US07319684B2 System and method for wireless communication using a management server and access points
有权
使用管理服务器和接入点进行无线通信的系统和方法
- 专利标题: System and method for wireless communication using a management server and access points
- 专利标题(中): 使用管理服务器和接入点进行无线通信的系统和方法
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申请号: US10449100申请日: 2003-06-02
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公开(公告)号: US07319684B2公开(公告)日: 2008-01-15
- 发明人: Tsuyoshi Tamaki , Takashi Yano , Takaki Uta , Tomoaki Ishifuji
- 申请人: Tsuyoshi Tamaki , Takashi Yano , Takaki Uta , Tomoaki Ishifuji
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Reed Smith LLP
- 代理商 Stanley P. Fisher, Esq.; Juan Carlos A. Marquez, Esq.
- 优先权: JPP2002-180775 20020621
- 主分类号: H04B7/212
- IPC分类号: H04B7/212 ; H04B7/00 ; H04J3/06
摘要:
A system and method are provided for wireless communication. In one example, a wireless communication system that enhances total system throughput is provided. The system performs parallel data transmission from a plurality of access points to a plurality of user terminals. On terminals with power control function, their transmit power can be set to minimize interference. The wireless communication system comprises a management server which performs centralized management of time of access-point-to-terminal packet transmission, access points, and user terminals that perform data transmission, according to transmission time control information from the management server. Transmit queues for measuring downlink traffic and receive queues for measuring uplink traffic are provided on the access points or the management server. The system determines uplink and downlink periods from the transmit and receive queue lengths. The system also controls the access points and user terminals to transmit for the determined periods. Consequently, packet collision due to transmission from a terminal that interferes with neighboring terminals is eliminated. Thus, system throughput is enhanced.