发明授权
US07257179B2 Method and apparatus for frequency tracking in a space time transmit diversity receiver
失效
用于时空发射分集接收机的频率跟踪的方法和装置
- 专利标题： Method and apparatus for frequency tracking in a space time transmit diversity receiver
- 专利标题（中）： 用于时空发射分集接收机的频率跟踪的方法和装置
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申请号： US10091772申请日： 2002-03-06
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公开(公告)号： US07257179B2公开(公告)日： 2007-08-14
- 发明人: Xin Jin , Runbo Fu , Jorgen S. Nielsen
- 申请人： Xin Jin , Runbo Fu , Jorgen S. Nielsen
- 申请人地址： CA Waterloo
- 专利权人： Research In Motion Limited
- 当前专利权人： Research In Motion Limited
- 当前专利权人地址： CA Waterloo
- 代理机构： Jones Day
- 代理商 Krishna K. Pathiyal; Robert C. Liang
- 主分类号： H04B7/10
- IPC分类号： H04B7/10 ; H04L1/02
摘要：
A system and method for obtaining a frequency error estimate representing the difference between a reference frequency and the frequency of a space-time transmit diversity signal is disclosed herein. The method includes taking the correlation of total sums, comprised of partial sums taken in defined first and second intervals, to represent the frequency error as the imaginary component of the correlation function.
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