发明公开
EP1232571A1 METHOD AND APPARATUS FOR DETERMINING REMOTE UNIT LOCATION USING PHASED ARRAY ANTENNA ELEMENTS
有权
的方法和一种用于确定一个远程单元的位置下的使用对照组的天线元件相的
- 专利标题: METHOD AND APPARATUS FOR DETERMINING REMOTE UNIT LOCATION USING PHASED ARRAY ANTENNA ELEMENTS
- 专利标题(中): 的方法和一种用于确定一个远程单元的位置下的使用对照组的天线元件相的
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申请号: EP00959723.8申请日: 2000-08-31
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公开(公告)号: EP1232571A1公开(公告)日: 2002-08-21
- 发明人: PFEIL, Jeff, L. , ROTTINGHAUS, Alan, P. , HENDERSON, Stephen, W. , TAPIA, Javier, J.
- 申请人: MOTOROLA INC.
- 申请人地址: 1303 East Algonquin Road Schaumburg, IL 60196-3750 US
- 专利权人: MOTOROLA INC.
- 当前专利权人: MOTOROLA INC.
- 当前专利权人地址: 1303 East Algonquin Road Schaumburg, IL 60196-3750 US
- 代理机构: Gibson, Sarah Jane
- 优先权: US409546 19990930
- 国际公布: WO01026237 20010412
- 主分类号: H04B1/38
- IPC分类号: H04B1/38 ; H04B7/216 ; H04Q7/20 ; H04M1/00
摘要:
An apparatus (100) and method dynamically allocates radio frequency receive path resources as required by a programmable location engine (112). The programmable location engine (112) employs cascaded time of arrival and direction of arrival algorithms to determine per remote unit location data. The apparatus (100) employs a phased array antenna (104) and a programmable receiver switching apparatus (108). A plurality of radio frequency receivers (102a-102n) receive a plurality of different carriers, such as CDMA carriers, on each of a different phased array antenna element (106a-106d). An RF switching matrix (126) and mobile location shared resource controller (110) dynamically switch the plurality of radio frequency receivers (102a-102b) to not only receive the different carriers on each of the different phased antenna radio elements to determine time of arrival information, but alternately receive a same carrier signal over all or a portion of the phased array antenna elements to determine direction of arrival information.
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