发明名称 |
Positioning of a path searcher window in a CDMA receiver |
摘要 |
<p>Multipath components of signals transmitted through time-varying digital radio channels are received with individual delays, and signals through a given channel comprise a code identifying that channel. A delay profile indicating a magnitude (Y) for delay values in a search window is calculated repetitively for known channels; the delays of multipath components for known channels estimated; a signal strength indicator calculated; and a search for new multipath components not already estimated performed at regular time intervals. When a new multipath component is found, its identification code is compared to the codes of the known channels. If the code of the new component is identical to the code of a known channel, a delay profile and a signal strength indicator is calculated for a window transposed to include the new multipath component. In this way as many multipath components as possible are included in the search window for a new cell. <IMAGE></p> |
申请公布号 |
EP1511185(A1) |
申请公布日期 |
2005.03.02 |
申请号 |
EP20030388056 |
申请日期 |
2003.08.26 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
JONSSON, ELIAS;PERSSON, ROGER |
分类号 |
H04B1/707;(IPC1-7):H04B1/707 |
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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