发明名称 |
POSITION AIDED SUBSCRIBER UNIT FOR A SATELLITE CELLULAR SYSTEM |
摘要 |
A subscriber unit for communicating with a satellite communication system. This subscriber unit receives and transmits digital data from satellites of a satellite communication system. In addition, the subscriber unit self-determines its own position and transmits this position to the satellites of the satellite communication system. In this way, the satellite communication system knows the position of each subscriber unit so that communications may be established more efficiently. In addition, the position of the subscriber unit is automatically determined from the received GPS signals and reported to the satellite communication system for other uses such as asset management and search and rescue operations.
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申请公布号 |
CA2044452(C) |
申请公布日期 |
2001.05.15 |
申请号 |
CA19912044452 |
申请日期 |
1991.06.12 |
申请人 |
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发明人 |
DURBORAW, ISAAC NEWTON, III |
分类号 |
H04B7/155;G01S5/14;G01S19/06;G01S19/25;H04B7/185;(IPC1-7):H04B7/185 |
主分类号 |
H04B7/155 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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