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1. 发明申请

WO2010141791A3 ITERATIVE INTERFERENCE CANCELLATION RECEIVER 审中-公开
标题翻译：迭代干扰消除接收器
公开(公告)号：WO2010141791A3
公开(公告)日：2011-04-21
申请号：PCT/US2010037343
申请日：2010-06-04
申请人： QUALCOMM INC , SIKRI DIVAYDEEP , ABRISHAMKAR FARROKH
发明人： SIKRI DIVAYDEEP , ABRISHAMKAR FARROKH
IPC分类号： H04L25/02 , H04L25/03
CPC分类号： H04L25/03019 , H04L25/0228
摘要： A method for suppressing interference in a wireless communication comprises receiving a burst of symbols, filtering the burst of symbols using an interference suppression filter with a first plurality of weights, decoding the filtered burst of symbols to generate data corresponding to the burst of symbols, encoding the data to generate a re-encoded burst of symbols, calculating a second plurality of weights for the interference suppression filter based upon the re-encoded burst of symbols, filtering the re-encoded burst of symbols using the interference suppression filter with the second plurality of weights, and decoding the filtered re-encoded burst of symbols.
摘要翻译：一种用于抑制无线通信中的干扰的方法包括：接收符号脉冲串，使用具有第一多个权重的干扰抑制滤波器对符号突发进行滤波，解码经过滤波的符号突发，以产生与符号突发相对应的数据，编码所述数据用于生成重新编码的码元突发，基于重新编码的符号突发计算干扰抑制滤波器的第二多个权重，使用具有第二多个干扰抑制滤波器对重新编码的码元突发进行滤波并对经滤波的重新编码的符号突发进行解码。

2. 发明申请

WO2009108586A2 COHERENT SINGLE ANTENNA INTERFERENCE CANCELLATION FOR GSM/GPRS/EDGE 审中-公开
标题翻译： GSM / GPRS / EDGE的相干单天线干扰消除
公开(公告)号：WO2009108586A2
公开(公告)日：2009-09-03
申请号：PCT/US2009/034794
申请日：2009-02-20
申请人： QUALCOMM INCORPORATED , ABRISHAMKAR, Farrokh , SIKRI, Divaydeep
发明人： ABRISHAMKAR, Farrokh , SIKRI, Divaydeep
IPC分类号： H04L7/04 , H04L25/02
CPC分类号： H04L7/042 , H04L7/048 , H04L25/0228
摘要： A method for midamble estimation comprises the steps of receiving a burst of symbols, selecting a subset of the burst of symbols that comprises a first midamble symbol, calculating, for each symbol in the subset, a corresponding midamble estimation error, and determining the lowest calculated midamble estimation error to locate the first midamble symbol. A receiver comprises an antenna configured to receive a burst of symbols, a timing estimator configured to select a subset of the burst of symbols that comprises a first midamble symbol, a midamble estimator configured to calculate, for each symbol in the subset, a corresponding midamble estimation error, and a processor configured to select the symbol in the subset corresponding to a lowest calculated midamble estimation error as the first midamble symbol.
摘要翻译：一种用于中间码估计的方法包括以下步骤：接收符号脉冲串，选择包括第一中间码符号的符号突发的子集，为该子集中的每个符号计算相应的中间码估计误差，以及确定最低计算中间码估计误差来定位第一个midamble符号。接收机包括被配置为接收符号突发的天线，定时估计器，被配置为选择包括第一中间码符号的符号突发的子集，中间码估计器，被配置为针对子集中的每个符号计算相应的中间码估计误差，以及被配置为选择对应于最低计算的中间码估计误差的子集中的符号作为第一中间码符号的处理器。

3. 发明申请

WO2006023414A1 MULTI-BAND WIDEBAND TRANSMISSION METHODS AND APPARATUS HAVING IMPROVED USER CAPACITY 审中-公开
标题翻译：具有改进的用户容量的多带宽带传输方法和设备
公开(公告)号：WO2006023414A1
公开(公告)日：2006-03-02
申请号：PCT/US2005/028876
申请日：2005-08-12
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. , MO, Shaomin, Samuel , SIKRI, Divaydeep , GELMAN, Alexander, D. , HAIMOVICH, Alexander, M.
发明人： MO, Shaomin, Samuel , SIKRI, Divaydeep , GELMAN, Alexander, D. , HAIMOVICH, Alexander, M.
IPC分类号： H04B1/69
CPC分类号： H04L5/0016 , H04B1/71635 , H04B1/71637 , H04B1/719 , H04L25/0232
摘要： Methods and computer program products for transmitting and receiving encoded signals in a wideband communication system and for generating codes for encoding the encoded signals are disclosed. The wideband communication system includes communication slots separated in frequency and/or time. The codes include components associated with each of the communication slots. A sub-carrier symbol is encoded by combining that symbol with each component of the code and modulating each symbol/component slot corresponding to the respective component.
摘要翻译：公开了用于在宽带通信系统中发送和接收编码信号以及用于生成用于编码编码信号的编码的方法和计算机程序产品。宽带通信系统包括在频率和/或时间上分离的通信时隙。代码包括与每个通信时隙相关联的组件。通过将该符号与代码的每个分量组合并调制与各个分量相对应的每个符号/分量时隙来编码子载波符号。

4. 发明申请

WO2012092149A3 ESTIMATION OF THE FREQUENCY ERROR OF A TONE SIGNAL WITH WIDENED ACQUISITION RANGE 审中-公开
标题翻译：带宽信号获取范围的频率信号频率估计
公开(公告)号：WO2012092149A3
公开(公告)日：2012-10-04
申请号：PCT/US2011066970
申请日：2011-12-22
申请人： QUALCOMM INC , SIKRI DIVAYDEEP , RAFIQUE HASSAN , ALTAN CETIN
发明人： SIKRI DIVAYDEEP , RAFIQUE HASSAN , ALTAN CETIN
IPC分类号： H04L27/22
CPC分类号： H04L27/22 , H04L1/20 , H04L2027/0065 , H04L2027/0091 , H04L2027/0095
摘要： Estimating an unknown frequency error of a tone signal comprises sampling (1704), within an error bandwidth, wireless signals including the tone signal that occupy the error bandwidth to generate signal samples, and repeatedly (1720), for different frequency offsets: applying a frequency offset to the signal samples to produce offset values that represent the signals occupying an offset bandwidth equal to the error bandwidth offset by an offset frequency (1708); estimating, within a frequency estimation range less than the error bandwidth, a tone frequency error using the offset values (1712); and measuring a signal - to - noise ratio of the tone signal using the signal samples and the estimated tone frequency error (1716). When a particular frequency offset results in a particular estimated tone frequency error and a measured signal - to - noise ratio that is above a threshold, that particular estimated tone frequency error is determined to be equal to the unknown frequency error of the tone signal (1724).
摘要翻译：估计音调信号的未知频率误差包括在误差带宽内采样（1704）包括占据误差带宽的音调信号以产生信号样本的无线信号，并针对不同的频率偏移重复（1720）：应用频率偏移到信号样本以产生表示占据偏移频带等于误差带宽偏移的偏移带宽的信号的偏移值（1708）; 在小于误差带宽的频率估计范围内，使用偏移值（1712）估计音调频率误差; 以及使用信号样本和估计的音调频率误差来测量音调信号的信噪比（1716）。当特定频率偏移导致特定估计音频误差和高于阈值的测量信噪比时，该特定估计音频误差被确定为等于音调信号的未知频率误差（1724 ）。

5. 发明申请

WO2012116323A1 PREVENTING DROPPED CALLS USING VOICE SERVICES OVER ADAPTIVE MULTI-USER CHANNELS ON ONE SLOT (VAMOS) MODE 审中-公开
标题翻译：在一个插槽（VAMOS）模式下，通过自适应多用户通道预防使用语音服务的丢弃呼叫
公开(公告)号：WO2012116323A1
公开(公告)日：2012-08-30
申请号：PCT/US2012/026610
申请日：2012-02-24
申请人： QUALCOMM Incorporated , YU, Zhi-Zhong , SIKRI, Divaydeep
发明人： YU, Zhi-Zhong , SIKRI, Divaydeep
IPC分类号： H04L27/20 , H04L27/34 , H04L5/12 , H04W72/04 , H04W76/02 , H04L1/00 , H04W52/34 , H04W52/26
CPC分类号： H04W72/0473 , H04L1/0003 , H04L25/03821 , H04W52/16 , H04W52/346 , H04W76/19
摘要： Embodiments of the present invention include devices, systems and methods for prevention of dropped calls. For example, a method for preventing dropped voice calls can be performed by a base station. Multiple reports are received from multiple wireless communication devices. A first wireless communication device having a poor received signal is identified using the reports. A sub-channel power imbalance ratio is adjusted so that the base station gives favorable power imbalance to the first wireless communication device over a second wireless communication device. The second wireless communication device is paired with the first wireless communication device. Adjusting the sub-channel power imbalance ratio prevents a voice call by the first wireless communication device from being dropped that would otherwise be dropped. Other aspects, embodiments and features are also claimed and described.
摘要翻译：本发明的实施例包括用于防止掉话的装置，系统和方法。例如，可以由基站执行用于防止掉话语音呼叫的方法。从多个无线通信设备接收多个报告。使用报告来识别具有差的接收信号的第一无线通信设备。调整子信道功率不平衡比，使得基站通过第二无线通信设备给予第一无线通信设备有利的功率不平衡。第二无线通信设备与第一无线通信设备配对。调整子信道功率不平衡比率可防止第一无线通信设备的语音呼叫掉线，否则将丢弃。还要求和描述其它方面，实施例和特征。

6. 发明申请

WO2011028978A2 MULTI-STAGE INTERFERENCE SUPPRESSION 审中-公开
标题翻译：多级干扰抑制
公开(公告)号：WO2011028978A2
公开(公告)日：2011-03-10
申请号：PCT/US2010/047775
申请日：2010-09-03
申请人： QUALCOMM INCORPORATED , ABRISHAMKAR, Farrokh , SIKRI, Divaydeep , CHALLA, Raghu N. , CANPOLAT, Bahadir
发明人： ABRISHAMKAR, Farrokh , SIKRI, Divaydeep , CHALLA, Raghu N. , CANPOLAT, Bahadir
IPC分类号： H04L25/03
CPC分类号： H04L25/0328 , H04L25/0202 , H04L25/03286 , H04L25/03292 , H04L25/03299 , H04L2025/03726
摘要： A multi-stage interference suppression receiver includes a short equalizer section configured to operate on a first portion of a received signal received over a channel to produce a first equalized signal and a first estimate of the channel, a channel estimator section configured to operate on the first equalized signal to produce a second equalized signal, the channel estimator section comprising a linear estimator and a non-linear estimator, a long equalizer section configured to operate on a second portion of the received signal to produce a first estimate of symbols in the received signal and a second estimate of the channel and an interference canceller section configured to operate on the first estimate of symbols in the received signal to generate a second estimate of symbols in the received signal based on, at least in part, the second estimate of the channel.
摘要翻译：多级干扰抑制接收机包括短均衡器部分，其被配置为对通过信道接收的接收信号的第一部分进行操作以产生第一均衡信号和信道的第一估计，信道估计器部分被配置为在第一均衡信号以产生第二均衡信号，所述信道估计器部分包括线性估计器和非线性估计器，长均衡器部分，被配置为在接收信号的第二部分上进行操作，以产生接收到的符号的第一估计值信号和信道的第二估计以及干扰消除器部分，被配置为在接收信号中对符号的第一估计进行操作，以至少部分地基于接收信号中的符号的第二估计来生成接收信号中的符号的第二估计渠道。

7. 发明申请

WO2010127049A2 HYBRID SAIC RECEIVER 审中-公开
标题翻译：混合上汽接收器
公开(公告)号：WO2010127049A2
公开(公告)日：2010-11-04
申请号：PCT/US2010032858
申请日：2010-04-28
申请人： QUALCOMM INC , SIKRI DIVAYDEEP , ABRISHAMKAR FARROKH , DE LAURENTIIS NICO
发明人： SIKRI DIVAYDEEP , ABRISHAMKAR FARROKH , DE LAURENTIIS NICO
IPC分类号： H04B1/10 , H04B15/00
CPC分类号： H04L25/03292 , H04L2025/03426
摘要： Systems and methods of receiving data in a communication system are disclosed. The methods include equalizing a plurality of samples to suppress intersymbol interference and provide a first set of detected bits based on a first set of reference bits comprising a training sequence on a first iteration. The methods further include suppressing co-channel interference in the plurality of input samples and provide a set of suppressed samples based on a second set of reference bits comprising the first set of detected bits on a second iteration. The methods further include equalizing the set of suppressed samples to suppress intersymbol interference and provide a second set of detected bits based on the second set of reference bits on the second iteration.
摘要翻译：公开了在通信系统中接收数据的系统和方法。所述方法包括均衡多个采样以抑制符号间干扰，并且基于在第一次迭代中包括训练序列的第一组参考比特来提供第一组检测到的比特。所述方法还包括抑制多个输入样本中的同信道干扰，并且在第二次迭代中基于包括第一组检测到的比特的第二组参考比特提供一组抑制样本。所述方法还包括均衡所述抑制样本集合以抑制符号间干扰，并且基于所述第二迭代上的第二组参考比特提供第二组检测到的比特。

8. 发明申请

WO2010021945A1 ENHANCED GERAN RECEIVER USING CHANNEL INPUT BEAMFORMING 审中-公开
标题翻译：使用通道输入波束增强的增强型接收器
公开(公告)号：WO2010021945A1
公开(公告)日：2010-02-25
申请号：PCT/US2009/053961
申请日：2009-08-15
申请人： QUALCOMM Incorporated , SIKRI, Divaydeep , ABRISHAMKAR, Farrokh , MCCLOUD, Michael L.
发明人： SIKRI, Divaydeep , ABRISHAMKAR, Farrokh , MCCLOUD, Michael L.
IPC分类号： H04L25/03 , H04L7/04
CPC分类号： H04W56/00
摘要： A method for suppressing interference in a wireless communication is provided. The method comprises receiving a burst of symbols, generating a plurality of timing hypotheses for the burst of symbols, and calculating, for each timing hypothesis, a plurality of weights for an interference suppression filter based upon a subset of the burst of symbols. The method further comprises, for each timing hypothesis, filtering the subset of the burst of symbols using the interference suppression filter with the corresponding plurality of weights, and selecting one of the plurality of timing hypotheses corresponding to a selection criteria. The method further comprises equalizing and decoding the filtered burst of symbols based upon the selected one of the plurality of timing hypotheses.
摘要翻译：提供了一种用于抑制无线通信中的干扰的方法。该方法包括：接收符号脉冲串，产生用于符号脉冲串的多个定时假设，以及基于符号脉冲串的子集，针对每个时序假设计算干扰抑制滤波器的多个权重。该方法还包括对于每个时序假设，使用具有对应的多个权重的干扰抑制滤波器对符号突发的子集进行滤波，并且选择对应于选择标准的多个定时假设之一。该方法还包括基于所选择的多个定时假设之一来均衡和解码经过滤波的符号突发。

9. 发明申请

WO2010129436A1 METHOD AND SYSTEM FOR MULTI-USER INTERFERENCE CANCELLATION 审中-公开
标题翻译：用于多用户干扰消除的方法和系统
公开(公告)号：WO2010129436A1
公开(公告)日：2010-11-11
申请号：PCT/US2010/033265
申请日：2010-04-30
申请人： QUALCOMM INCORPORATED , YU, Yingqun , ABRISHAMKAR, Farrokh , SIKRI, Divaydeep , McCLOUD, Michael, L.
发明人： YU, Yingqun , ABRISHAMKAR, Farrokh , SIKRI, Divaydeep , McCLOUD, Michael, L.
IPC分类号： H04B1/707 , H04L25/02
CPC分类号： H04B1/7107 , H04B1/71052 , H04B2201/70701
摘要： Systems and methods for multi-user interference cancellation 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 and a detection unit configured to detect user symbols from the received symbols. The apparatus also comprises an interference cancellation unit configured to compute multi-user interference using the detected user symbols and to remove the computed multi-user interference from the received symbols. The apparatus further comprises a redetection unit configured to redetect user symbols from the received symbols with the computed multi-user interference removed.
摘要翻译：提供了多用户干扰消除的系统和方法。在本公开的一个方面，提供一种装置。该装置包括：处理单元，被配置为将接收到的码片处理为多个用户的接收符号;以及检测单元，被配置为从接收的符号检测用户符号。该装置还包括被配置为使用检测到的用户符号来计算多用户干扰并从所接收的符号中去除所计算的多用户干扰的干扰消除单元。所述设备还包括重新检测单元，其被配置为从所接收的符号中重新检测用户符号，同时移除所计算的多用户干扰。

10. 发明申请

WO2010127049A3 HYBRID SAIC RECEIVER 审中-公开
公开(公告)号：WO2010127049A3
公开(公告)日：2010-11-04
申请号：PCT/US2010/032858
申请日：2010-04-28
申请人： QUALCOMM Incorporated , SIKRI, Divaydeep , ABRISHAMKAR, Farrokh , DE LAURENTIIS, Nico
发明人： SIKRI, Divaydeep , ABRISHAMKAR, Farrokh , DE LAURENTIIS, Nico
IPC分类号： H04B1/10 , H04B15/00
摘要： Systems and methods of receiving data in a communication system are disclosed. The methods include equalizing a plurality of samples to suppress intersymbol interference and provide a first set of detected bits based on a first set of reference bits comprising a training sequence on a first iteration. The methods further include suppressing co-channel interference in the plurality of input samples and provide a set of suppressed samples based on a second set of reference bits comprising the first set of detected bits on a second iteration. The methods further include equalizing the set of suppressed samples to suppress intersymbol interference and provide a second set of detected bits based on the second set of reference bits on the second iteration.

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