发明申请
- 专利标题: METHODS AND APPARATUS FOR RESOVLING FREQUENCY ERRORS DURING TRANSISTION BETWEEN COMMUNICATION NETWORKS
- 专利标题(中): 在通信网络之间的转换期间解决频率误差的方法和装置
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申请号: US11948246申请日: 2007-11-30
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公开(公告)号: US20090141837A1公开(公告)日: 2009-06-04
- 发明人: Srinivasan Vasudevan , Arunava Chaudhuri , Mohit Narang
- 申请人: Srinivasan Vasudevan , Arunava Chaudhuri , Mohit Narang
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM INCORPORATED
- 当前专利权人: QUALCOMM INCORPORATED
- 当前专利权人地址: US CA San Diego
- 主分类号: H04L27/06
- IPC分类号: H04L27/06
摘要:
Methods and apparatus for resolving frequency errors in a wireless device transitioning from a first communication network to a second communication network are disclosed. The methods and apparatus effect reception of a first and second channels from the second communication network where the first channel has known characteristics. The first channel is then decoding for a prescribed period and an initial frequency error value is determined based on the decoding of the first channel. A digital frequency rotator is then adjusted based on the initial frequency error value for purposes of decoding the second channel. The second channel is then decoded using the digital frequency rotator as adjusted based on the initial frequency error value, without further calculation of the frequency error.
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