Invention Grant
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
- Patent Title: Time-error and frequency-error correction in a multi-carrier wireless communications system
- Patent Title (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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Application No.: US12198366Application Date: 2008-08-26
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Publication No.: US07991378B2Publication Date: 2011-08-02
- Inventor: Bengt Lindoff , Bo Bernhardsson , Fredrik Nordström
- Applicant: Bengt Lindoff , Bo Bernhardsson , Fredrik Nordström
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Coats & Bennett, P.L.L.C.
- Main IPC: H04B1/16
- IPC: H04B1/16

Abstract:
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.
Public/Granted literature
- US20090258628A1 Time-Error and Frequency-Error Correction in a Multi-Carrier Wireless Communications System Public/Granted day:2009-10-15
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