发明申请
- 专利标题: Frequency Offset Compensation for Multi-carrier Communication Systems
- 专利标题(中): 多载波通信系统频偏补偿
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申请号: US13695885申请日: 2011-05-06
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公开(公告)号: US20130202069A1公开(公告)日: 2013-08-08
- 发明人: Thomas Nilsson , Amit Singh
- 申请人: Thomas Nilsson , Amit Singh
- 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
- 优先权: EP10004885.9 20100507
- 国际申请: PCT/EP2011/057288 WO 20110506
- 主分类号: H04L27/26
- IPC分类号: H04L27/26
摘要:
The present disclosure provides a frequency offset compensation technique for use by a multi-carrier receiver. Compared with legacy receiver designs, the technique introduces a new function which correlates various frequency offsets of the different carriers involved in multi-carrier signal transmission and reception. This new function can be coupled with an Automatic Frequency Control (AFC) function which can then utilize the correlation information provided by the new function to achieve significantly better frequency error/offset estimation when the carriers are correlated. As a method aspect, the frequency offset compensation technique comprises the steps of receiving signals modulated on a plurality of carrier frequencies, deriving a frequency offset for each carrier frequency to thereby provide a plurality of frequency offsets corresponding to the plurality of carrier frequencies; correlating these plurality of frequency offsets; and controlling compensation of the frequency offsets based on a result of the correlation.
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