发明名称 |
Methods and apparatus for selecting between multiple carriers using a single receiver chain tuned to a single carrier |
摘要 |
<p>Receivers accommodating carrier frequency selection methods in wireless communications systems employing multiple carrier frequencies are described. Although the receiver is tuned to a single band, an estimate of the channel quality corresponding to the currently used carrier and an alternative carrier is generated without switching between carriers. Transmitters of different cells and/or different sectors primarily use different carrier frequencies but periodically transmit using a neighboring sector's carrier frequency. Mobile node receivers use a single RF chain with a controllable RF filter to receive and process a signal within a first selected carrier band including two components, a first signal component identified with the first currently selected band and a second signal component identified with a second alternative band.; Separate quality indicator values are obtained from the first and second signal components, compared, and a determination is made as to whether the receiver's RF filter should be switched to the second band.
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申请公布号 |
EP2254255(A3) |
申请公布日期 |
2012.05.09 |
申请号 |
EP20100009290 |
申请日期 |
2004.10.15 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
LAROIA, RAJIV;LI, JUNYI;LANE, FRANK |
分类号 |
H04B1/40;H04B1/00;H04B1/10;H04B15/00;H04B17/00;H04B17/02 |
主分类号 |
H04B1/40 |
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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