发明申请
US20080117101A1 GEO-LOCATION USING DISTRIBUTED COMPOSITE GPS SIGNALS 有权
地理位置使用分布式复合GPS信号

  • 专利标题: GEO-LOCATION USING DISTRIBUTED COMPOSITE GPS SIGNALS
  • 专利标题(中): 地理位置使用分布式复合GPS信号
  • 申请号: US11770955
    申请日: 2007-06-29
  • 公开(公告)号: US20080117101A1
    公开(公告)日: 2008-05-22
  • 发明人: Vic Pan
  • 申请人: Vic Pan
  • 主分类号: H04B7/185
  • IPC分类号: H04B7/185
GEO-LOCATION USING DISTRIBUTED COMPOSITE GPS SIGNALS
摘要:
A wireless communication arrangement provides GPS coverage in areas where GPS satellites or macrocells are not directly detectable by a mobile station that is used for placing an emergency call. A detector detects a plurality of GPS satellites and provides a composite GPS signal that is re-radiated through a distributed antenna system to provide GPS signal coverage within a selected area such as inside of a building. The signal reach at each re-radiator assembly is individually controlled to keep the composite GPS signal coverage area within a selected limit. A mobile station used to place an emergency call reports the composite GPS signal information in a data call or SMS message that is associated with the emergency voice call. That information is then used for GEO-location to determine the location of the mobile station. A disclosed example includes a technique for addressing a scenario where a mobile station directly detects a satellite and detects the composite GPS signal.
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