Accelerated selection of a base station in a wireless communication system
- 申请公布号：
- US6519277(B2)
- 申请号：
- US20010981141
- 申请日期：
- 2001.10.16
- 申请公布日期：
- 2003.02.11
- 申请人：
- SIRF TECHNOLOGY, INC.
- 发明人：
- EIDSON DONALD BRIAN
- 分类号：
- H04J13/00;H04B7/26;H04W48/20;(IPC1-7):H04B15/00;H04K1/00;H04L27/30
- 主分类号：
- H04J13/00
- 摘要：
- A mobile wireless transceiver selects one of multiple nearby base stations to facilitate communication over a wireless network. Each base station transmits a pilot signal that includes a spreading signal transmitted at one of many possible phase offsets. The wireless transceiver selects an initial one of the possible phase offsets of the spreading signal and then correlates a received signal against the spreading signal at consecutive ones of the possible phase offsets. Correlation begins at the selected initial phase offset and continues until a component of the received signal and the spreading signal are aligned, indicating the detection of the pilot signal from one of the base stations. The transceiver then selects a non-consecutive one of the possible phase offsets of the spreading signal and correlates the received signal against the spreading signal at this non-consecutive phase offset to determine whether any other component of the received signal is aligned with the spreading signal at the selected non-consecutive phase offset.
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