发明授权
- 专利标题: Method and apparatus for adapting omnidirectional synchronous wireless communications protocol to sectorial environments
- 专利标题(中): 将全向同步无线通信协议适应于部门环境的方法和装置
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申请号: US861458申请日: 1997-05-22
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公开(公告)号: US5956621A公开(公告)日: 1999-09-21
- 发明人: Anthony J. Weiss , Yair Karmi , Ilan Zorman , Haim Harel
- 申请人: Anthony J. Weiss , Yair Karmi , Ilan Zorman , Haim Harel
- 申请人地址: CA Los Altos
- 专利权人: Wireless Online, Inc.
- 当前专利权人: Wireless Online, Inc.
- 当前专利权人地址: CA Los Altos
- 主分类号: H04W52/02
- IPC分类号: H04W52/02 ; H04W88/02 ; H04G7/20
摘要:
A pager protocol that permits individual pagers to operate in an inactive mode when not being addressed to save power but nonetheless also accommodates high capacity transmission schemes that require non-continuous illumination of sectors occupied by individual pagers. Capabilities of a conventional omnidirectional paging protocol such as one of the FLEX.TM. family may be exploited to facilitate operation in the context of non-continous illumination. A pager transmitter transmits a simulcast transmission where all pagers in all sectors receive the same message. This message includes schedule information about future transmissions to individual pagers. Pagers then plan their switching between the active and inactive states in accordance with the schedule which takes into account a timetable for illuminating sectors.
公开/授权文献
- US4671025A Greenhouse construction 公开/授权日:1987-06-09
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