发明申请
US20130177115A1 SYSTEMS AND METHODS FOR ADDRESSING DOPPLER EFFECT IN WIRELESS COMMUNICATIONS SYSTEMS
审中-公开
在无线通信系统中解决多普勒效应的系统和方法
- 专利标题: SYSTEMS AND METHODS FOR ADDRESSING DOPPLER EFFECT IN WIRELESS COMMUNICATIONS SYSTEMS
- 专利标题(中): 在无线通信系统中解决多普勒效应的系统和方法
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申请号: US13541132申请日: 2012-07-03
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公开(公告)号: US20130177115A1公开(公告)日: 2013-07-11
- 发明人: Lin Yang , Mohammad Hossein Taghavi Nasrabadi , Albert van Zelst , Hemanth Sampath , Renqiu Wang
- 申请人: Lin Yang , Mohammad Hossein Taghavi Nasrabadi , Albert van Zelst , Hemanth Sampath , Renqiu Wang
- 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: H04L25/02
- IPC分类号: H04L25/02
摘要:
Systems, methods, and devices for performing channel estimates to address the Doppler Effect in wireless communications are described herein. One aspect of the disclosure provides an apparatus for wireless communication. The apparatus comprises a receiver configured to receive coded data tones during a first symbol over a communication channel. The apparatus further comprises a processor. The processor is configured to estimate a common phase offset and amplitude of the communication channel based on pilot tones received over the communication channel. The processor is configured to determine, prior to decoding, a residual phase offset per data tone based on a phase difference between an estimate of the coded data tones and a reference symbol. The processor is configured to estimate update channel state information of the communication channel based on the determined estimated common phase offset, amplitude, and the determined residual phase offset per data tone.
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