发明授权
US06433668B1 Paging system with spacial, frequency and time diversity 失效
具有空间,频率和时间分集的寻呼系统

  • 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
  • 申请号: US08353572
    申请日: 1994-12-09
  • 公开(公告)号: US06433668B1
    公开(公告)日: 2002-08-13
  • 发明人: Lawrence RaganGarold B. Gaskill
  • 申请人: Lawrence RaganGarold B. Gaskill
  • 主分类号: H04Q714
  • IPC分类号: H04Q714
Paging system with spacial, frequency and time diversity
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.
信息查询
0/0