Accelerated selection of a base station in a wireless communication system,申请号US20010981141-传众专利搜索

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.