发明申请
- 专利标题: METHOD FOR AUTOMATIC FREQUENCY CORRECTION IN A MULTI-CARRIER COMMUNICATIONS DEVICE
- 专利标题(中): 多载波通信设备中自动频率校正的方法
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申请号: US13589503申请日: 2012-08-20
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公开(公告)号: US20140051366A1公开(公告)日: 2014-02-20
- 发明人: Armin W. Klomsdorf , William P. Alberth, JR. , Gregory R. Black
- 申请人: Armin W. Klomsdorf , William P. Alberth, JR. , Gregory R. Black
- 申请人地址: US IL Libertyville
- 专利权人: MOTOROLA MOBILITY LLC
- 当前专利权人: MOTOROLA MOBILITY LLC
- 当前专利权人地址: US IL Libertyville
- 主分类号: H04L7/00
- IPC分类号: H04L7/00 ; H04B1/40
摘要:
A method and system provides an automatic frequency correction (AFC) within a wireless communication device. A synchronization controller estimates first and second frequency errors respectively associated with a first received signal corresponding to a first receiver path and a second received signal corresponding to a second receiver path. The synchronization controller determines a value and a type of target clock of a first AFC associated with the first frequency error. If the first AFC is not generated to target a shared clock such as a reference clock, the synchronization controller generates a second AFC to compensate for the second frequency error. However, if it is determined that the first AFC targets a shared clock, the synchronization controller generates the second AFC to compensate for the first AFC and the second frequency error. The synchronization controller synchronously applies the first and second AFCs to the relevant clocks.
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