发明名称 |
METHOD OF FREQUENCY OFFSET COMPENSATION |
摘要 |
The present invention provides a method of processing a baseband signal including user signals transmitted by a plurality of users. The method includes applying frequency offset compensations to the baseband signal, thereby to form respective frequency-shifted baseband signals. Each frequency compensation shifts the baseband signal by a multiple of a selected frequency offset and each resulting frequency-shifted baseband signal includes frequency-shifted user signals. The method also includes assigning at least some of the frequency-shifted user signals to groups. Each group corresponds to one of the frequency compensations and the assignment is carried out so that each group includes frequency-shifted user signals that have an estimated frequency offset that lies within a range determined by the corresponding frequency compensation. The method further includes estimating a frequency offset of each of the user signals based on the frequency-shifted user signal and the frequency compensation of the group including the frequency-shifted user signal.
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申请公布号 |
US2008232516(A1) |
申请公布日期 |
2008.09.25 |
申请号 |
US20070842398 |
申请日期 |
2007.08.21 |
申请人 |
CHENG FANG-CHEN;SONG LEI;SONI ROBERT |
发明人 |
CHENG FANG-CHEN;SONG LEI;SONI ROBERT |
分类号 |
H04L27/06 |
主分类号 |
H04L27/06 |
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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