发明申请
- 专利标题: METHODS AND APPARATUS FOR COMMUNICATING INFORMATION USING NON-COHERENT AND COHERENT MODULATION
- 专利标题(中): 使用非相干和相关调制来传播信息的方法和装置
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申请号: US12578251申请日: 2009-10-13
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公开(公告)号: US20110085620A1公开(公告)日: 2011-04-14
- 发明人: Cyril Measson , Alberto Vigato , Saurabh Tavildar , Junyi Li , Thomas Richardson , Xinzhou Wu
- 申请人: Cyril Measson , Alberto Vigato , Saurabh Tavildar , Junyi Li , Thomas Richardson , Xinzhou Wu
- 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: H04L27/00
- IPC分类号: H04L27/00 ; H04L27/06
摘要:
Non-coherent modulation is used to communicate coding information via pilot signals using a first subset of resources, and coherent modulation is used to generate data signals. This allows for a stronger global code while keeping individual signaling complexity low. First and second communications devices communicate information using a set of communications resources. By performing non-coherent demodulation on pilot signals received on a first subset of said set of communications resources coding information is recovered. First and second channel estimates are generated from the pilot signals received on the first subset of said communications resources. Coherent demodulation is performed on data signals received on a second subset of said set of communications resources using said first and second channel estimates and said coding information to recover information communicated by said first communications device and to recover separate information communicated by said second communications device.
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