发明名称 |
GPS SATELLITE SIGNAL ACQUISITION ASSISTANCE SYSTEM AND METHOD IN A WIRELESS COMMUNICATIONS NETWORK |
摘要 |
A system and method for assisting an integrated GPS/wireless terminal unit i n acquiring one or more GPS satellite signals from the GPS satellite constellation. The invention includes a method for narrowing the PN-code pha se search. That is, by accounting for the variables in geographic location and time delay relative to GPS time, the systems and methods of the present invention generate a narrow code-phase search range that enables the termina l unit to more quickly acquire and track the necessary GPS satellites, and thereby more quickly provide accurate position information to a requesting entity.
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申请公布号 |
CA2425547(A1) |
申请公布日期 |
2002.04.18 |
申请号 |
CA20012425547 |
申请日期 |
2001.10.11 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
STEIN, JEREMY M.;AGASHE, PARAG A.;VAYANOS, ALKINOOS H.;FERNANDEZ-CORBATON, IVAN JESUS;GAAL, PETER;SOLIMAN, SAMIR S. |
分类号 |
G01S1/00;G01S19/05;G01S19/25;H04B1/707;(IPC1-7):G01S5/14 |
主分类号 |
G01S1/00 |
代理机构 |
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