发明名称 |
APPARATUS AND METHOD FOR PERFORMING A SIGNAL SEARCH IN A WIRELESS COMMUNICATION SYSTEM |
摘要 |
A search metric adjustor (401) for use in a base station receiver assembly (400) which operates in a CDMA wireless communication system conveying a mobile communication signal (107), is disclosed. The search metric adjustor (401) produces an adjusted energy value (490) that is utilized by a sorter (265) in a receiver signal searcher (200) to select a set of valid time offsets at which effective demodulation of the mobile communication signal (107) may occur. The search metric adjustor (401) compares a first plurality of Walsh symbol energy values (245), output from the receiver signal searcher (200), to a second plurality of Walsh symbol energy values (342), output from a spread spectrum receiver (300). The comparison yields a Walsh symbol match count (470), correlated to a predetermined energy value (480) which is then added to an energy metric (241) to produce the adjusted energy value (490).
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申请公布号 |
WO0018039(A1) |
申请公布日期 |
2000.03.30 |
申请号 |
WO1999US21961 |
申请日期 |
1999.09.21 |
申请人 |
MOTOROLA INC. |
发明人 |
BROWN, TYLER, A.;WANG, MICHAEL, MAO |
分类号 |
H04B1/707;(IPC1-7):H04B7/216 |
主分类号 |
H04B1/707 |
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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