发明授权
US07991378B2 Time-error and frequency-error correction in a multi-carrier wireless communications system
有权
多载波无线通信系统中的时间误差和频率误差校正
- 专利标题: Time-error and frequency-error correction in a multi-carrier wireless communications system
- 专利标题(中): 多载波无线通信系统中的时间误差和频率误差校正
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申请号: US12198366申请日: 2008-08-26
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公开(公告)号: US07991378B2公开(公告)日: 2011-08-02
- 发明人: Bengt Lindoff , Bo Bernhardsson , Fredrik Nordström
- 申请人: Bengt Lindoff , Bo Bernhardsson , Fredrik Nordström
- 申请人地址: SE Stockholm
- 专利权人: Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人: Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人地址: SE Stockholm
- 代理机构: Coats & Bennett, P.L.L.C.
- 主分类号: H04B1/16
- IPC分类号: H04B1/16
摘要:
Methods and apparatus for automatic frequency control in wireless receivers configured to simultaneously receive multiple carrier signals at distinct radio frequencies are disclosed. An exemplary wireless device comprises at least first and second radio front-end circuits configured to receive first and second wireless communication signals transmitted via first and second radio-frequency carriers at distinct first and second radio frequencies, respectively, a control processor configured to designate a master carrier signal and a slave carrier signal from among the received wireless communication signals, and a frequency error estimation circuit configured to estimate a first receiver frequency error using the received master carrier signal. The control processor is further configured to calculate a second receiver frequency error from the first receiver frequency error, for use in compensating one or more receiver processes performed on the slave carrier signal.
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