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1. 发明申请

WO2005002163A2 IMPROVED SLICER INPUT AND FEEDBACK FILTER CONTENTS FOR BLOCK CODED DIGITAL COMMUNICATIONS 审中-公开
标题翻译：改进块编码信号均衡的方法和装置
公开(公告)号：WO2005002163A2
公开(公告)日：2005-01-06
申请号：PCT/US2004/020360
申请日：2004-06-23
申请人： QUALCOMM, INCORPORATED , SMEE, John E. , ZHANG, Haitao
发明人： SMEE, John E. , ZHANG, Haitao
IPC分类号： H04L25/03
CPC分类号： H04L25/03063 , H04L25/03171
摘要： Improved decision directed adaptation and decision feedback equalizers are provided in a block coded digital communication system. The performance of a receiver is significantly improved by allowing the decision feedback equalizer to perform time-tracking and residual frequency offset compensation during the data portion of a frame. This is accomplished by capitalizing on the inherent correlation among the chips of a code word in a block coded digital communication system to identify certain instances where more reliable symbol estimates can be derived from a sliced chip without introduction the delay inherent in decoding. As the more reliable symbol estimates are fed back into the chip slicer, the total efficiency of the decision feedback equalizer is improved and the more reliable symbol estimates can be used to replace older content in the feedback filter to further improve the accuracy of the modified slicer input and further decrease the effects of error propagation by the decision feedback equalizer.
摘要翻译：在块编码的数字通信系统中提供了改进的决策定向适配和判决反馈均衡器。通过允许判决反馈均衡器在帧的数据部分期间执行时间跟踪和残余频率偏移补偿，显着地改善了接收机的性能。这通过利用块编码的数字通信系统中的码字的码片之间的固有相关性来实现，以识别某些情况，其中可以从切片的码片导出更可靠的符号估计，而不引入解码中固有的延迟。随着更可靠的符号估计被反馈到芯片分片器中，改进了决策反馈均衡器的总效率，并且可以使用更可靠的符号估计来代替反馈滤波器中的较旧内容，以进一步提高修改的分片器的精度输入并进一步降低判决反馈均衡器误差传播的影响。

2. 发明申请

WO2010151701A1 METHOD AND APPARATUS FOR FACILITATING MULTI-USER JOINT TRANSMIT-RECEIVE BEAMFORMING 审中-公开
标题翻译：促进多用户接头发射接收光束的方法和装置
公开(公告)号：WO2010151701A1
公开(公告)日：2010-12-29
申请号：PCT/US2010/039868
申请日：2010-06-24
申请人： QUALCOMM Incorporated , HOU, Jilei , CHEN, Jinghu , SMEE, John E. , SORIAGA, Joseph B. , GHADY, Navid Hassanpour
发明人： HOU, Jilei , CHEN, Jinghu , SMEE, John E. , SORIAGA, Joseph B. , GHADY, Navid Hassanpour
IPC分类号： H04B7/04 , H04B7/06
CPC分类号： H04B7/0452 , H04B7/0617 , H04B7/0626
摘要： A method of wireless communication is disclosed that includes receiving detected channel information from a plurality of access terminals (402); selecting a set of access terminals from the plurality of access terminals based on the received channel information; creating a beamforming vector for each access terminal in the set of selected access terminals (406); and transmitting a signal using at least one of the created beamforming vectors (408). An apparatus for performing the method is also disclosed herein.
摘要翻译：公开了一种无线通信方法，包括从多个接入终端（402）接收检测到的信道信息; 基于所接收的信道信息从所述多个接入终端中选择一组接入终端; 为所选择的接入终端集合（406）中的每个接入终端创建波束成形向量; 以及使用所创建的波束形成向量（408）中的至少一个发送信号。本文还公开了一种用于执行该方法的装置。

3. 发明申请

WO2010017334A1 COORDINATED TRANSMISSIONS BETWEEN CELLS OF A BASE STATION IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
标题翻译：无线通信系统中基站的电话之间的协调传输
公开(公告)号：WO2010017334A1
公开(公告)日：2010-02-11
申请号：PCT/US2009/052908
申请日：2009-08-06
申请人： QUALCOMM INCORPORATED , HOU, Jilei , FARAJIDANA, Amir , YANG, Lin , SMEE, John, E. , HASSANPOUR GHADY, Navid , MALLIK, Siddhartha , MALLADI, Durga, Prasad
发明人： HOU, Jilei , FARAJIDANA, Amir , YANG, Lin , SMEE, John, E. , HASSANPOUR GHADY, Navid , MALLIK, Siddhartha , MALLADI, Durga, Prasad
IPC分类号： H04B7/02 , H04B7/04
CPC分类号： H04B7/024 , H04B7/0417 , H04B7/0491 , H04B7/0632 , H04L5/005 , H04L25/0206
摘要： Systems and methods for providing coverage to a first cell (104i) through a first antenna system (106i) and coverage to a second cell (104 j) through a second antenna system (106g). Data is also processed for transmission to a mobile device (108i) in the first cell using the first and second antenna systems.
摘要翻译：通过第一天线系统（106i）向第一小区（104i）提供覆盖并通过第二天线系统（106g）向第二小区（104j）提供覆盖的系统和方法。还使用第一和第二天线系统处理数据以传输到第一小区中的移动设备（108i）。

4. 发明申请

WO2004064294A8 METHOD FOR PROVIDING FORWARD LINK HANDOFF IN A WIRELESS COMMUNICATION SYSTEM WITH OFDM FORWARD LINK AND CDMA REVERSE LINK 审中-公开
标题翻译：在无线通信系统中使用OFDM前向链路和CDMA反向链路提供前向链路切换的方法
公开(公告)号：WO2004064294A8
公开(公告)日：2006-10-12
申请号：PCT/US2004000324
申请日：2004-01-07
申请人： QUALCOMM INC , SMEE JOHN E , WALTON JAY R , MALLADI DURGA P , WILLENEGGER SERGE
发明人： SMEE JOHN E , WALTON JAY R , MALLADI DURGA P , WILLENEGGER SERGE
IPC分类号： H04W36/08
CPC分类号： H04W36/30
摘要： A method and apparatus for performing handoff in a wireless communication system with multi-carrier modulation (MCM) for a forward link and CDMA for a reverse link. In one embodiment, a method of performing handoff on the forward link for a terminal is provided in which signal quality of pilots received by the terminal from a plurality of base stations in the system is determined. A particular base station for subsequent data transmission on the forward link to the terminal is selected based on the signal quality determined for the plurality of base stations. A request to be handed off to the particular base station is initiated if the particular base station is different than a currently selected base station.
摘要翻译：一种用于在用于前向链路的多载波调制（MCM）和用于反向链路的CDMA的无线通信系统中执行切换的方法和装置。在一个实施例中，提供了一种在终端的前向链路上执行切换的方法，其中终端从系统中的多个基站接收的导频的信号质量被确定。基于为多个基站确定的信号质量来选择用于在到终端的前向链路上的后续数据传输的特定基站。如果特定基站不同于当前选择的基站，则启动要切换到特定基站的请求。

5. 发明申请

WO2005002163A3 METHOD AND APPARATUS FOR IMPROVING THE EQUALISATION OF BLOCK CODED SIGNALS 审中-公开
标题翻译：改善块编码信号均衡的方法和装置
公开(公告)号：WO2005002163A3
公开(公告)日：2005-03-24
申请号：PCT/US2004020360
申请日：2004-06-23
申请人： QUALCOMM INC , SMEE JOHN E , ZHANG HAITAO
发明人： SMEE JOHN E , ZHANG HAITAO
IPC分类号： H04L25/03
CPC分类号： H04L25/03063 , H04L25/03171
摘要： Improved decision directed adaptation and decision feedback equalizers are provided in a block coded digital communication system. The performance of a receiver is significantly improved by allowing the decision feedback equalizer to perform time-tracking and residual frequency offset compensation during the data portion of a frame. This is accomplished by capitalizing on the inherent correlation among the chips of a code word in a block coded digital communication system to identify certain instances where more reliable symbol estimates can be derived from a sliced chip without introduction the delay inherent in decoding. As the more reliable symbol estimates are fed back into the chip slicer, the total efficiency of the decision feedback equalizer is improved and the more reliable symbol estimates can be used to replace older content in the feedback filter to further improve the accuracy of the modified slicer input and further decrease the effects of error propagation by the decision feedback equalizer.
摘要翻译：在分组编码数字通信系统中提供改进的决策指导自适应和判决反馈均衡器。通过允许判决反馈均衡器在帧的数据部分期间执行时间跟踪和残余频率偏移补偿，接收机的性能得到显着改善。这是通过利用块编码数字通信系统中码字的码片之间固有的相关性来实现的，以识别某些情况，其中可以从切片芯片导出更可靠的码元估计而不引入解码中固有的延迟。随着更可靠的符号估计被反馈到芯片限幅器中，判决反馈均衡器的总效率得到改善，并且可以使用更可靠的符号估计来代替反馈滤波器中的旧内容，以进一步提高修改后的限幅器的准确度并通过判决反馈均衡器进一步降低误差传播的影响。

6. 发明申请

WO2010017482A1 METHOD AND APPARATUS FOR SUPPORTING MULTI-USER AND SINGLE-USER MIMO IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在无线通信系统中支持多用户和单用户MIMO的方法和装置
公开(公告)号：WO2010017482A1
公开(公告)日：2010-02-11
申请号：PCT/US2009/053162
申请日：2009-08-07
申请人： QUALCOMM INCORPORATED , HOU, Jilei , SMEE, John, E. , MALLADI, Durga Prasad , HASSANPOUR GHADY, Navid , MALLIK, Siddhartha
发明人： HOU, Jilei , SMEE, John, E. , MALLADI, Durga Prasad , HASSANPOUR GHADY, Navid , MALLIK, Siddhartha
IPC分类号： H04B7/02 , H04B7/04
CPC分类号： H04B7/024 , H04B7/0417 , H04B7/0452 , H04B7/0626 , H04B7/0639
摘要： Techniques for supporting distributed multiple-input multiple-output (MIMO) transmissions are described. In one design, a user equipment (UE) determines channel estimates for multiple cells and reports the channel estimates. The UE thereafter receives a data transmission sent by the multiple cells to the UE based on the channel estimates. The data transmission may include at least one data stream, and each data stream may be sent by one cell or the multiple cells to the UE. In another design, a UE determines first and second channel estimates for first and second cells, respectively, and reports the channel estimates. The UE then receives a first data transmission sent by the first cell to the UE based on the first channel estimate. The UE also receives a second data transmission sent by the second cell to another UE and steered away from the UE based on the second channel estimate.
摘要翻译：描述了用于支持分布式多输入多输出（MIMO）传输的技术。在一种设计中，用户设备（UE）确定多个小区的信道估计并报告信道估计。 UE然后基于信道估计来接收由多个小区发送到UE的数据传输。数据传输可以包括至少一个数据流，并且每个数据流可以由一个小区或多个小区发送到UE。在另一种设计中，UE分别为第一和第二小区确定第一和第二信道估计，并报告信道估计。然后，UE基于第一信道估计来接收第一小区向UE发送的第一数据传输。 UE还接收由第二小区发送到另一个UE的第二数据传输，并且基于第二信道估计导向远离UE。

7. 发明申请

WO2004098138A1 EQUALIZER 审中-公开
标题翻译：均衡器
公开(公告)号：WO2004098138A1
公开(公告)日：2004-11-11
申请号：PCT/US2004/012581
申请日：2004-04-23
申请人： QUALCOMM INCORPORATED , SMEE, John E. , ZHANG, Haitao
发明人： SMEE, John E. , ZHANG, Haitao
IPC分类号： H04L25/03
CPC分类号： H04L25/0314 , H04L25/03159
摘要： The LE coefficients for CDM pilot systems can be determined based upon frequency-domain calculations involving channel impulse responses. A channel impulse response can be formed at the mobile terminal by suitably filtering and despreading the received baseband signal with respect to the pilot Walsh channel. The channel frequency response is then determined based on the fast Fourier transform (FFT) of the channel impulse response. Frequency-domain equalizer coefficients can be determined from the channel frequency response. The frequency-domain equalizer coefficient can be utilized to determine time-domain equalizer coefficients to implement the equalizer in time domain, or be utilized to implement the equalizer in frequency domain
摘要翻译：可以基于涉及信道脉冲响应的频域计算来确定CDM导频系统的LE系数。通过适当地对接收的基带信号相对于导频沃尔什信道进行滤波和解扩，可以在移动终端形成信道脉冲响应。然后，基于信道脉冲响应的快速傅里叶变换（FFT）来确定信道频率响应。可以从信道频率响应确定频域均衡器系数。频域均衡器系数可用于确定时域均衡器系数以在时域中实现均衡器，或用于在频域中实现均衡器

8. 发明申请

WO2004077696A1 EQUALIZATION OF MULTIPLE SIGNALS RECEIVED FOR SOFT HANDOFF IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：在无线通信系统中接收到用于软交换的多个信号的均衡
公开(公告)号：WO2004077696A1
公开(公告)日：2004-09-10
申请号：PCT/US2004/005565
申请日：2004-02-23
申请人： QUALCOMM INCORPORATED , JAYARAMAN, Srikant , SMEE, John, E. , FERNANDEZ-CORBATON, Ivan, Jesus
发明人： JAYARAMAN, Srikant , SMEE, John, E. , FERNANDEZ-CORBATON, Ivan, Jesus
IPC分类号： H04B7/02
CPC分类号： H04L25/03038 , H04B7/022 , H04L25/0244 , H04L25/0256 , H04L2025/03375 , H04L2025/03426 , H04L2025/03477 , H04L2025/03605 , H04W24/00 , H04W36/08 , H04W36/18
摘要： Techniques for performing equalization of multiple signals received by a terminal in soft handoff with multiple base stations. The received signal at the terminal is conditioned and digitized to provide a stream of received samples (y m ), which is then equalized/filtered (410) with multiple sets of coefficients to provide multiple streams of transmit chip estimates (X k ). One set of coefficients (f k ) is provided for each base station and is used to provide a corresponding stream of transmit chip estimates. The multiple streams of transmit chip estimates are further processed (420) to provide multiple streams of data symbol estimates (d k ), one stream of data symbol estimates for each base station. The multiple streams of data symbol estimates are then scaled (430) with multiple scaling factors (α k ) and combined (432) to provide a stream of combined data symbol estimates (d k ). The processing for the multiple base stations may be performed by a single hardware unit in a time division multiplexed manner.
摘要翻译：用于在与多个基站的软切换中执行终端接收的多个信号的均衡的技术。在终端处接收的信号被调节并数字化以提供接收样本流（ym），然后将其与多组系数进行均衡/滤波（410），以提供多个发射芯片估计流（Xk）。为每个基站提供一组系数（fk），并用于提供相应的传输芯片估计流。进一步处理（420）发射芯片估计的多个流以提供数据符号估计（dk）的多个流，每个基站的数据符号估计的一个流。然后用多个缩放因子（alphak）和组合（432）对多个数据符号估计流进行缩放（430）以提供组合数据符号估计（dk）的流。多个基站的处理可以由时分多路复用的单个硬件单元执行。

9. 发明申请

WO2006004948A1 METHOD AND APPARATUS FOR CANCELING PILOT INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在无线通信系统中取消导频干扰的方法和装置
公开(公告)号：WO2006004948A1
公开(公告)日：2006-01-12
申请号：PCT/US2005/023307
申请日：2005-06-30
申请人： QUALCOMM Incorporated , CORALLI, Alessandro Vanelli , PFISTER, Henry David , HOU, Jilei , SMEE, John E. , PADOVANI, Roberto , BUTLER, Brian K. , LEVIN, Jeffrey A. , WILBORN, Thomas B. , BENDER, Paul E.
发明人： CORALLI, Alessandro Vanelli , PFISTER, Henry David , HOU, Jilei , SMEE, John E. , PADOVANI, Roberto , BUTLER, Brian K. , LEVIN, Jeffrey A. , WILBORN, Thomas B. , BENDER, Paul E.
IPC分类号： H04B1/707
CPC分类号： H04B1/7107 , H04B2201/70701
摘要： Methods and systems for estimating and canceling pilot interference in a wireless (e.g., CDMA) communication system. In one method, a received signal comprised of a number of signal instances, each including a pilot, is initially processed to provide data samples. Each signal instance's pilot interference may be estimated by despreading the data samples with a spreading sequence for the signal instance, channelizing the despread data to provide pilot symbols, filtering the pilot symbols to estimate the channel response of the signal instance, and multiplying the estimated channel response with the spreading sequence. The pilot interference estimates due to a plurality of interfering multipaths are accumulated to derive the total pilot interference, which is subtracted from the data samples to provide pilot-canceled data samples. These samples are then processed to derive demodulated data for each of at least one (desired) signal instance in the received signal.
摘要翻译：用于估计和消除无线（例如，CDMA）通信系统中的导频干扰的方法和系统。在一种方法中，最初处理包括多个信号实例（每个包括导频）的接收信号以提供数据样本。每个信号实例的导频干扰可以通过用信号实例的扩展序列解扩数据样本来估计，对解扩数据进行信道化以提供导频符号，对导频符号进行滤波以估计信号实例的信道响应，并将估计信道响应与扩展序列。由多个干扰多径导致的导频干扰估计被累加以导出总导频干扰，其从数据样本中减去以提供导频取消的数据采样。然后处理这些样本，以便为接收信号中的至少一个（期望的）信号实例中的每一个导出解调数据。

10. 发明申请

WO2004112339A8 DECISION FEEDBACK EQUALIZER WITH COMBINED CCK ENCODING-DECODING IN FEEDBACK FILTERING 审中-公开
标题翻译：具有组合CCK编码解码的反馈反馈的反馈反馈均衡器
公开(公告)号：WO2004112339A8
公开(公告)日：2005-09-22
申请号：PCT/US2004017161
申请日：2004-05-28
申请人： QUALCOMM INC , ABRISHAMKAR FARROKH , SMEE JOHN E , GLAZKO SERGUEI
发明人： ABRISHAMKAR FARROKH , SMEE JOHN E , GLAZKO SERGUEI
IPC分类号： H03K5/159 , H04L23/02 , H04L25/03
CPC分类号： H04L23/02 , H04L25/03057 , H04L2025/03375 , H04L2025/0349 , H04L2025/03611
摘要： A decision feedback equalizer includes a chip estimate buffer that forms chip estimates into a vector. A CCK decoder decodes the vector of chip estimates, and a CCK encoder, connected with the CCK decoder, re-encodes the vector of chip estimates into a valid CCK code word. At the same time, a chip slicer provides direct sliced chips from the chip estimates. An update module then forms a hybrid vector from the valid CCK code-word and the direct sliced chips for input to the feedback filter of the decision feedback equalizer. The hybrid feedback filter input vector reflects the CCK coding gain of its re-encoded portion thereby reducing the estimated chip error rate to improve the performance of the decision feedback equalizer.
摘要翻译：判决反馈均衡器包括将码片估计形成向量的码片估计缓冲器。 CCK解码器解码芯片估计的向量，并且与CCK解码器连接的CCK编码器将芯片估计的向量重新编码为有效的CCK码字。同时，芯片切片机从芯片估计提供直接切片芯片。然后，更新模块从有效的CCK码字和直接切片的芯片形成混合矢量，以输入到判决反馈均衡器的反馈滤波器。混合反馈滤波器输入矢量反映其重新编码部分的CCK编码增益，从而降低估计的芯片误码率，以提高判决反馈均衡器的性能。

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