发明授权
- 专利标题: METHODS AND APPARATUS FOR INITIAL ACQUISITION GAIN CONTROL IN A COMMUNICATION SYSTEM
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申请号: EP08732603.9申请日: 2008-03-20
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公开(公告)号: EP2130342B1公开(公告)日: 2018-07-04
- 发明人: WANG, Michael Mao
- 申请人: QUALCOMM Incorporated
- 申请人地址: Attn: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: Attn: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- 代理机构: Tomkins & Co
- 优先权: US690590 20070323
- 国际公布: WO2008118755 20081002
- 主分类号: H04L27/26
- IPC分类号: H04L27/26 ; H03G3/20
摘要:
Methods and apparatus for initial acquisition gain control in a communication system a method for use in a wireless communication system are disclosed. A disclosed methodology includes measuring the power of a signal received by a transceiver a number of times over a prescribed time period, the signal including a number of symbols. A gain of the transceiver is unidirectionally adjusted when a currently measured power is greater than a previously measured power during the prescribed time period until a maximal power level is measured. By adjusting the gain to accommodate a maximal power value, which is the same as the power level of an acquisition pilot symbol, overshoot and distortion by the transceiver are avoided during initial timing and frequency acquisition. Corresponding apparatus are also disclosed.
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