发明授权
- 专利标题: Paging system with spacial, frequency and time diversity
- 专利标题(中): 具有空间,频率和时间分集的寻呼系统
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申请号: US08353572申请日: 1994-12-09
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公开(公告)号: US06433668B1公开(公告)日: 2002-08-13
- 发明人: Lawrence Ragan , Garold B. Gaskill
- 申请人: Lawrence Ragan , Garold B. Gaskill
- 主分类号: H04Q714
- IPC分类号: H04Q714
摘要:
The present invention provides a highly reliable radio paging system. The radio paging system of the present invention provides a combination of time, frequency and spacial diversity in order to increase the reliability of the system. Time diversity is provided by broadcasting the same message at a number of different times. Spacial diversity is achieved by broadcasting the same message from a number of different locations. Frequency diversity is achieved by broadcasting the same message at a number of different frequencies. The paging receiver according to the present invention is designed to receive messages on a number of different frequencies; however, the pager only responds to a message the first time that it receives the particular message. The combination of time, frequency, and spacial diversity provided by the present invention results in a highly reliable radio paging system.
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