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1. 发明申请

WO2010129439A3 METHOD AND SYSTEM FOR MULTIUSER DETECTION 审中-公开
标题翻译：用于多用户检测的方法和系统
公开(公告)号：WO2010129439A3
公开(公告)日：2010-11-11
申请号：PCT/US2010/033292
申请日：2010-04-30
申请人： QUALCOMM INCORPORATED , ABRISHAMKAR, Farrokh , LI, Wenjun , YU, Yingqun , SRIPATHI, Prashant, Udupa
发明人： ABRISHAMKAR, Farrokh , LI, Wenjun , YU, Yingqun , SRIPATHI, Prashant, Udupa
IPC分类号： H04L25/03 , H04L27/34 , H04L27/38 , H04B1/707
摘要： Systems and methods for symbol detection are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises a processing unit configured to process received chips into received symbols for a plurality of users, a first detection unit configured to detect first components of user symbols for the plurality of users based on the received symbols and a computation unit configured to compute a portion of the received symbols due to the first components of the user symbols. The apparatus further comprises a second detection unit configured to detect second components of the user symbols based on the received symbols with the computed portion removed and a combining unit configured to detect the user symbols by combining the first components of the user symbols with the respective second components of the user symbols.
摘要翻译：提供了用于符号检测的系统和方法。在本公开的一个方面中，提供了一种装置。该设备包括：处理单元，被配置为将接收到的码片处理成针对多个用户的接收码元;第一检测单元，被配置为基于接收到的码元检测多个用户的用户码元的第一分量;以及计算单元，由于用户符号的第一分量而导致接收符号的一部分。该装置进一步包括：第二检测单元，被配置为基于具有去除的计算部分的接收到的符号来检测用户符号的第二分量;以及组合单元，被配置为通过将用户符号的第一分量与相应的第二分量相组合来检测用户符号用户符号的组件。

2. 发明申请

WO2010129438A1 METHOD AND SYSTEM FOR MULTI-USER DETECTION IN THE PRESENCE OF MULTIPLE SPREADING FACTORS 审中-公开
标题翻译：用于多用户检测的多个扩展因子的方法和系统
公开(公告)号：WO2010129438A1
公开(公告)日：2010-11-11
申请号：PCT/US2010/033289
申请日：2010-04-30
申请人： QUALCOMM INCORPORATED , YU, Yingqun , LI, Wenjun , ABRISHAMKAR, Farrokh , SRIPATHI, Prashant, Udupa
发明人： YU, Yingqun , LI, Wenjun , ABRISHAMKAR, Farrokh , SRIPATHI, Prashant, Udupa
IPC分类号： H04B1/707
CPC分类号： H04B1/7103 , H04B2201/70703
摘要： Methods and systems for multi-user detection in the presence of multiple spreading factors are provided. In one aspect of the disclosure, an apparatus is provided. The apparatus comprises an interference computation unit configured to compute a combined interference based on detected user symbols for a first spreading factor and detected user symbols for a second spreading factor, wherein the combined interference accounts for multi-user interference from user symbols for the first and second spreading factors. The apparatus further comprises an interference cancellation unit configured to remove the computed combined interference from a plurality of received symbols corresponding to the first spreading factor and a redetection unit configured to redetect the user symbols for the first spreading factor from the plurality of received symbols with the computed combined interference removed.
摘要翻译：提供了在存在多个扩展因子的情况下进行多用户检测的方法和系统。在本公开的一个方面，提供一种装置。所述装置包括：干扰计算单元，被配置为基于用于第一扩频因子的检测到的用户符号和用于第二扩频因子的检测到的用户符号来计算组合干扰，其中所述组合干扰考虑来自用户符号的第一和第二个传播因素。所述装置还包括：干扰消除单元，被配置为从对应于所述第一扩频因子的多个接收符号中去除所述计算出的组合干扰;以及重新检测单元，被配置为从所述多个接收到的符号重新检测所述第一扩频因子的用户符号，计算出的组合干扰被去除。

3. 发明申请

WO2012034100A1 DATA CLASSIFICATION BASED ON ERROR DETECTION CHECK AND DECODER METRICS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：基于无线通信系统中的错误检测和解码器度量的数据分类
公开(公告)号：WO2012034100A1
公开(公告)日：2012-03-15
申请号：PCT/US2011/051121
申请日：2011-09-09
申请人： QUALCOMM INCORPORATED , SRIPATHI, Prashant, Udupa , JOOTAR, Jittra , KIM, Je, Woo , LU, Feng
发明人： SRIPATHI, Prashant, Udupa , JOOTAR, Jittra , KIM, Je, Woo , LU, Feng
IPC分类号： H04L1/00 , H04L1/20
CPC分类号： H04L1/0054 , H04L1/0061 , H04L1/201
摘要： A method of data classification for use in a wireless communication system includes obtaining decoder metrics from a decoder. The decoder metrics correspond to data generated by the decoder. The decoder metrics include a first metric and a second metric. The method also includes classifying the data into a first category if the data fails an error detection check, into a second category if the data passes the error detection check and is determined to be unreliable, or into a third category if the data passes the error detection check and is determined to be reliable. A reliability of the data is determined based on at least one of the decoder metrics and a threshold.
摘要翻译：一种用于无线通信系统的数据分类方法包括从解码器获得解码器度量。解码器度量对应于由解码器生成的数据。解码器度量包括第一度量和第二度量。如果数据通过错误检测检查并且数据通过错误检测检查并被确定为不可靠，则该方法还包括将数据分类为第一类别，如果数据未通过错误检测检查，则将数据分类成第三类别，如果数据通过错误检测检查确定可靠。基于解码器度量和阈值中的至少一个来确定数据的可靠性。

4. 发明申请

WO2010008830A3 PHASE-NOISE RESILIENT GENERATION OF A CHANNEL QUALITY INDICATOR 审中-公开
公开(公告)号：WO2010008830A3
公开(公告)日：2010-01-21
申请号：PCT/US2009/048263
申请日：2009-06-23
申请人： QUALCOMM INCORPORATED , LU, Feng , SRIPATHI, Prashant, Udupa , ZHAO, Liang , SUBRAHMANYA, Parvathanathan , RAO, Subramanya, P.
发明人： LU, Feng , SRIPATHI, Prashant, Udupa , ZHAO, Liang , SUBRAHMANYA, Parvathanathan , RAO, Subramanya, P.
IPC分类号： H04L1/20
摘要： System(s) and method(s) are provided for generating phase-noise resilient channel quality indicator(s). A pilot signal utilized to determine a channel quality indicator is rotated to be aligned to a phase reference signal. Separate noise evaluations in quadrature and in-phase directions are utilized, at least in part, to generate a net noise estimate that is phase-noise compensated or resilient. For example, various combination schemes of quadrature and in-phase noise evaluations can be exploited to generate a net noise estimate, the schemes include weighted average of in-phase and quadrature noise estimates and running averages thereof. Simulation of net noise estimates as a function of geometry conditions reveal that the combination schemes provide substantive mitigation of phase-noise, thus making CQI generation phase-noise resilient.

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