发明名称 |
CARRIER FREQUENCY OFFSET PROCESSING METHOD AND APPARATUS AND RECEIVER |
摘要 |
The invention provides a carrier frequency offset processing method, an apparatus and a receiver. The method comprises: receiving, through a software and hardware interface, an estimated value of frequency offset of a data packet transmitted by an automatic frequency offset control module; collecting the received estimated value of frequency offset of the data packet and performing statistical analysis to obtain a statistical value of carrier frequency offset between a receiving module and a transmitting module; and dynamically adjusting, according to the statistical value of carrier frequency offset, a bandwidth of a low-pass filter through the software and hardware interface. The invention realizes dynamic adjustment of the bandwidth of the low-pass filter in the process of a receiver receiving signals, solving the problem of the impact on processing performance brought by the fixed bandwidth of a low-pass filter in the prior art. |
申请公布号 |
US2016277223(A1) |
申请公布日期 |
2016.09.22 |
申请号 |
US201615164741 |
申请日期 |
2016.05.25 |
申请人 |
SHANGHAI EASTSOFT MICROELECTRONICS CO., LTD. |
发明人 |
SHEN LIWEI;Liu Ruijin;Pan Song |
分类号 |
H04L27/152;H04L27/148;H04B1/10 |
主分类号 |
H04L27/152 |
代理机构 |
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代理人 |
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主权项 |
1. A carrier frequency offset processing method, comprising:
receiving, through a software and hardware interface, an estimated value of frequency offset of a data packet transmitted by an automatic frequency offset control module; collecting the received estimated value of frequency offset of the data packet and performing statistical analysis to obtain a statistical value of carrier frequency offset between a receiving module and a transmitting module; dynamically adjusting, according to the statistical value of the carrier frequency offset, a bandwidth of a low-pass filter through the software and hardware interface; and feeding the statistical value of carrier frequency offset back to a local oscillator, so as to allow the local oscillator to compensate and adjust a frequency of the local oscillator according to the statistical value of carrier frequency offset and the estimated value of carrier frequency offset. |
地址 |
Shanghai CN |