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1. 发明申请

WO2006105309A1 METHOD AND APPARATUS FOR BLOCK-WISE DECISION-FEEDBACK EQUALIZATION FOR WIRELESS COMMUNICATION 审中-公开
标题翻译：用于无线通信的块式决策反馈均衡的方法和装置
公开(公告)号：WO2006105309A1
公开(公告)日：2006-10-05
申请号：PCT/US2006/011670
申请日：2006-03-29
申请人： QUALCOMM INCORPORATED , WEI, Yongbin , KIM, Byoung-Hoon , MALLADI, Durga Prasad
发明人： WEI, Yongbin , KIM, Byoung-Hoon , MALLADI, Durga Prasad
IPC分类号： H04L25/03
CPC分类号： H04L25/03063 , H04L25/03057 , H04L25/03159
摘要： Techniques for performing decision feedback equalization are described. A feed-forward filter response and a feedback filter response are derived based on a channel estimate and a reliability parameter and further without constraint on the feedback filter response or with a constraint of no feedback for an on-time sample. The reliability parameter is indicative of the reliability of the feedback used for equalization and may be frequency dependent or frequency invariant. Different feed-forward and feedback filter responses may be derived with different constraints on the feedback filter and different assumptions for the reliability parameter. Equalization is performed with the feed-forward and feedback filter responses. If equalization is performed for multiple iterations then, for each iteration, the reliability parameter may be updated, the feed-forward and feedback filter responses may be derived based on the updated reliability parameter, and equalization may be performed with the filter responses for the iteration.
摘要翻译：描述用于执行判决反馈均衡的技术。基于信道估计和可靠性参数导出前馈滤波器响应和反馈滤波器响应，并且进一步而不受反馈滤波器响应的约束或者对于准时采样没有反馈的约束。可靠性参数表示用于均衡的反馈的可靠性，并且可以是频率依赖的或频率不变的。不同的前馈和反馈滤波器响应可以通过反馈滤波器的不同约束和可靠性参数的不同假设得出。使用前馈和反馈滤波器响应执行均衡。如果对多次迭代执行均衡，那么对于每个迭代，可以更新可靠性参数，可以基于更新的可靠性参数导出前馈和反馈滤波器响应，并且可以用迭代的滤波器响应来执行均衡。

2. 发明申请

WO2006127119A2 METHOD AND APPARATUS FOR EQUALIZATION CONTROL 审中-公开
标题翻译：用于均衡控制的方法和装置
公开(公告)号：WO2006127119A2
公开(公告)日：2006-11-30
申请号：PCT/US2006/011649
申请日：2006-03-28
申请人： QUALCOMM INCORPORATED , KIM, Byoung-Hoon , MALLADI, Durga Prasad , WEI, Yongbin
发明人： KIM, Byoung-Hoon , MALLADI, Durga Prasad , WEI, Yongbin
IPC分类号： H04L25/03
CPC分类号： H04L25/03038 , H04L25/03057 , H04L2025/03573
摘要： An equalization filter is provided with the ability to softly switch between pure linear equalization and decision feedback equalization. A reliability gain factor and an associated gain factor calculated by a predetermined mapping relation are provided in a decision feedback path and a feedforward path, respectively. Increasing the reliability gain factor increases the significance of the decision feedback filtering. Better performance than pure linear equalization and pure decision feedback equalization can be achieved.
摘要翻译：均衡滤波器具有在纯线性均衡和判决反馈均衡之间软切换的能力。分别在判定反馈路径和前馈路径中提供通过预定映射关系计算的可靠性增益因子和相关联的增益因子。增加可靠性增益因子增加了决策反馈滤波的意义。可以实现比纯线性均衡和纯决策反馈均衡更好的性能。

3. 发明申请

WO2009061960A1 METHOD FOR MAPPING CONTROL CHANNEL ELEMENTS TO RESOURCES FOR FREQUENCY DIVERSITY 审中-公开
标题翻译：用于将控制信道元素映射到频率多样性资源的方法
公开(公告)号：WO2009061960A1
公开(公告)日：2009-05-14
申请号：PCT/US2008/082690
申请日：2008-11-06
申请人： QUALCOMM Incorporated , GAAL, Peter , WEI, Yongbin , KIM, Byoung-hoon , MALLADI, Durga Prasad , MONTOJO, Juan
发明人： GAAL, Peter , WEI, Yongbin , KIM, Byoung-hoon , MALLADI, Durga Prasad , MONTOJO, Juan
IPC分类号： H04B7/12
CPC分类号： H04B7/12 , H03M13/2703 , H03M13/2742 , H03M13/2789 , H04L5/0007 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04L5/0053 , H04L5/0064 , H04L25/022 , H04L25/0226 , H04L25/0228
摘要： Aspects relate to a flexible interleaving scheme that provides frequency diversity to randomizes interference Frequency diversity groups can be utilized, wherein control channel elements (CCEs) gain greater frequency diversity for a given number of mini-CCEs (e.g., subset of CCEs). A frequency diversity group index is permuted according to a bit reversed scheme to facilitate control channel elements with a small number of mini-CCEs to also gain sufficient frequency diversity.
摘要翻译：方面涉及提供频率分集以使随机化干扰的灵活交错方案。可以利用频率分集组，其中控制信道单元（CCE）为给定数量的小型CCE（例如，CCE的子集）获得更大的频率分集。频率分集组索引根据比特反转方案进行置换，以便于具有少量mini-CCE的控制信道单元以获得足够的频率分集。

4. 发明申请

WO2006084267A1 METHOD AND SYSTEM FOR CHANNEL EQUALIZATION 审中-公开
标题翻译：信道均衡的方法和系统
公开(公告)号：WO2006084267A1
公开(公告)日：2006-08-10
申请号：PCT/US2006/004248
申请日：2006-02-06
申请人： QUALCOMM INCORPORATED , MALLADI, Durga Prasad , KIM, Byoung-hoon , WEI, Yongbin
发明人： MALLADI, Durga Prasad , KIM, Byoung-hoon , WEI, Yongbin
IPC分类号： H04L25/03
CPC分类号： H04L25/03006 , H04L25/022 , H04L25/0228 , H04L2025/03375 , H04L2025/03783
摘要： One embodiment includes a method of receiving a transmitted signal. The method comprises receiving a signal transmitted over a channel. The signal comprises a known signal and an information signal. The method further includes determining at least one indicator of channel characteristics based at least in part on the portion of the known signal. The method further includes generating a first value indicative of the information signal based at least in part on the at least one indicator of the channel characteristics. The first value comprises an error signal. The method further comprises removing the error signal from the first estimate of the signal based at least in part on the portion of the known signal. Other embodiments include systems for performing the method and methods of making such systems.
摘要翻译：一个实施例包括接收发送信号的方法。该方法包括接收通过信道发送的信号。信号包括已知信号和信息信号。该方法还包括至少部分地基于已知信号的部分来确定信道特性的至少一个指示符。该方法还包括至少部分地基于信道特性的至少一个指示符来生成指示信息信号的第一值。第一个值包括一个误差信号。该方法还包括至少部分地基于已知信号的部分从信号的第一估计中去除误差信号。其他实施例包括用于执行制造这种系统的方法和方法的系统。

5. 发明申请

WO2009023860A1 APPARATUS AND METHOD OF DETERMINING A PRECODING MATRIX IN A MULTI- INPUT MULTI-OUTPUT (MIMO) SYSTEM 审中-公开
标题翻译：在多输入多输出（MIMO）系统中确定预编码矩阵的装置和方法
公开(公告)号：WO2009023860A1
公开(公告)日：2009-02-19
申请号：PCT/US2008/073386
申请日：2008-08-15
申请人： QUALCOMM Incorporated , SARKAR, Sandip , KIM, Byoung-Hoon , MALLADI, Durga Prasad , MONTOJO, Juan
发明人： SARKAR, Sandip , KIM, Byoung-Hoon , MALLADI, Durga Prasad , MONTOJO, Juan
IPC分类号： H04B7/04
CPC分类号： H04B7/0417 , H04B7/0434 , H04B7/063 , H04B7/0632 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending multiple-input multiple-output (MIMO) transmissions in wireless communication systems are described. In one design, a transmitter sends a first reference signal via a first link, e.g., a cell-specific reference signal via the downlink. The transmitter receives channel quality indicator (CQI) information determined by a receiver based on the first reference signal. The transmitter also receives a second reference signal from the receiver via a second link, e.g., a sounding reference signal via the uplink. The transmitter obtains at least one MIMO channel matrix for the first link based on the second reference signal. The transmitter determines at least one precoding matrix based on the at least one MIMO channel matrix, e.g., in accordance with ideal eigen-beamforming or pseudo eigen-beamforming. The transmitter then sends a data transmission to the receiver based on the at least one precoding matrix and the CQI information.
摘要翻译：描述了在无线通信系统中发送多输入多输出（MIMO）传输的技术。在一种设计中，发射机经由第一链路发送第一参考信号，例如经由下行链路的小区特定参考信号。发射机基于第一参考信号接收由接收机确定的信道质量指示符（CQI）信息。发射机还经由第二链路从接收机接收第二参考信号，例如经由上行链路的探测参考信号。发射机基于第二参考信号获得用于第一链路的至少一个MIMO信道矩阵。发射机基于至少一个MIMO信道矩阵来确定至少一个预编码矩阵，例如，根据理想的本征波束形成或伪特征波束形成。然后，发射机基于至少一个预编码矩阵和CQI信息向接收机发送数据传输。

6. 发明申请

WO2009023850A1 UPLINK CONTROL CHANNEL FORMAT 审中-公开
标题翻译：上拉控制通道格式
公开(公告)号：WO2009023850A1
公开(公告)日：2009-02-19
申请号：PCT/US2008/073367
申请日：2008-08-15
申请人： QUALCOMM Incorporated , KIM, Byoung-hoon , MALLADI, Durga Prasad
发明人： KIM, Byoung-hoon , MALLADI, Durga Prasad
IPC分类号： H04L1/16 , H04L1/00
CPC分类号： H04L1/0026 , H04L1/003 , H04L1/1671 , H04L5/0023 , H04L5/0053 , H04L5/0057 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Systems and methodologies are described that facilitate encoding feedback or control information into a compact payload. In particular, a rank indicator, a precoding matrix indicator and channel quality indicators are packaged into a control channel payload that fits into a single sub-frame. The payload format is determined based at least in part on an antenna configuration or channel quality indicator granularity. In addition, hybrid automatic repeat requests can be included in the payload.
摘要翻译：描述了有助于将反馈或控制信息编码成紧凑的有效载荷的系统和方法。特别地，等级指示符，预编码矩阵指示符和信道质量指示符被封装成适合于单个子帧的控制信道有效载荷。至少部分地基于天线配置或信道质量指示符粒度确定有效载荷格式。此外，有效载荷中可以包含混合自动重复请求。

7. 发明申请

WO2008115837A1 CONFIGURABLE ACKNOWLEDGEMENT PROCESSING IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中的配置确认处理
公开(公告)号：WO2008115837A1
公开(公告)日：2008-09-25
申请号：PCT/US2008/057160
申请日：2008-03-14
申请人： QUALCOMM Incorporated , MALLADI, Durga Prasad , KIM, Byoung-Hoon
发明人： MALLADI, Durga Prasad , KIM, Byoung-Hoon
IPC分类号： H04L1/00 , H04L1/16 , H04L1/18
CPC分类号： H04L1/1671 , H04L1/0026 , H04L1/0057 , H04L1/0073 , H04L1/1812 , H04L1/1854
摘要： Techniques for sending and receiving acknowledgement (ACK) information in a wireless communication system are described. A base station sends control information and data to a user equipment (UE) and receives ACK information from the UE. The base station performs detection for the ACK information based on (i) a first hypothesis for the control information being missed by the UE and (ii) a second hypothesis for the control information being received correctly by the UE. In one design, the ACK information may have a variable size, and the base station may perform detection for the ACK information based on different block codes for the first and second hypotheses. In another design, the ACK information may have a fixed size, and the base station may perform detection for the ACK information based on a single block code and obtain a fixed number of bits for the ACK information for both hypotheses.
摘要翻译：描述了在无线通信系统中发送和接收确认（ACK）信息的技术。基站向用户设备（UE）发送控制信息和数据，并从UE接收ACK信息。基站根据（i）UE丢失的控制信息的第一假设和（ii）由UE正确接收到的控制信息的第二假设，对ACK信息执行检测。在一种设计中，ACK信息可以具有可变大小，并且基站可以基于针对第一和第二假设的不同块代码来执行针对ACK信息的检测。在另一种设计中，ACK信息可以具有固定的大小，并且基站可以基于单个块码执行ACK信息的检测，并为两个假设获得用于ACK信息的固定位数。

8. 发明申请

WO2008098093A2 MIMO TRANSMISSION WITH EXPLICIT AND IMPLICIT CYCLIC DELAYS 审中-公开
标题翻译：具有明确和隐含的周期性延迟的MIMO传输
公开(公告)号：WO2008098093A2
公开(公告)日：2008-08-14
申请号：PCT/US2008/053233
申请日：2008-02-06
申请人： QUALCOMM INCORPORATED , KIM, Byoung-Hoon , MALLADI, Durga Prasad , ZHANG, Xiaoxia
发明人： KIM, Byoung-Hoon , MALLADI, Durga Prasad , ZHANG, Xiaoxia
CPC分类号： H04B7/0671 , H04B7/0417 , H04B7/0632 , H04B7/0647 , H04L5/0023 , H04L25/03898 , H04L27/2626
摘要： Techniques for transmitting data using a combination of explicit cyclic delay and implicit cyclic delay are described. A transmitter may perform first processing for cyclic delay diversity (or explicit cyclic delay processing) based on a first set of cyclic delay values known to a receiver. The transmitter may perform precoding based on a precoding matrix either before or after the explicit cyclic delay processing. The transmitter may perform second processing for cyclic delay diversity (or implicit cyclic delay processing) based on a second set of cyclic delay values unknown to the receiver. The transmitter may perform both explicit and implicit cyclic delay processing for data and may perform only implicit cyclic delay processing for pilot. One entity may select the first set of cyclic delay values and inform the other entity. The transmitter may autonomously select the second set of cyclic delay values without informing the receiver.
摘要翻译：描述了使用显式循环延迟和隐式循环延迟的组合来发送数据的技术。发射机可以基于接收机已知的第一组循环延迟值来执行循环延迟分集（或显式循环延迟处理）的第一处理。发射机可以在显式循环延迟处理之前或之后基于预编码矩阵执行预编码。发射机可以基于接收机未知的第二组循环延迟值来执行循环延迟分集（或隐式循环延迟处理）的第二处理。发射机可以对数据执行显式和隐式循环延迟处理，并且可以仅对导频执行隐式循环延迟处理。一个实体可以选择第一组循环延迟值并通知另一个实体。发射机可以自主地选择第二组循环延迟值而不通知接收机。

9. 发明申请

WO2008098092A3 CYCLIC DELAY DIVERSITY AND PRECODING FOR WIRELESS COMMUNICATION 审中-公开
公开(公告)号：WO2008098092A3
公开(公告)日：2008-08-14
申请号：PCT/US2008/053232
申请日：2008-02-06
申请人： QUALCOMM Incorporated , KIM, Byoung-Hoon , MALLADI, Durga Prasad , ZHANG, Xiaoxia , YOO, Taesang
发明人： KIM, Byoung-Hoon , MALLADI, Durga Prasad , ZHANG, Xiaoxia , YOO, Taesang
IPC分类号： H04B7/06
摘要： Techniques for sending a MIMO transmission using a combination of cyclic delay diversity and precoding are described. A set of delays (e.g., zero delay, small delay, and large delay) for cyclic delay diversity and a set of precoding matrices may be supported. In one design, a Node B may select a delay specifically for a UE or for a set of UEs served by the Node B. In another design, a UE may evaluate different combinations of precoding matrix and delay, determine the combination with the best performance, and send this combination of precoding matrix and delay to the Node B. The Node B may perform precoding with the precoding matrix and then processing for cyclic delay diversity based on the selected delay. Alternatively, the Node B may perform processing for cyclic delay diversity based on the selected delay and then precoding with the precoding matrix.

10. 发明申请

WO2008086491A1 FAST CELL SEARCH 审中-公开
标题翻译：快速细胞搜索
公开(公告)号：WO2008086491A1
公开(公告)日：2008-07-17
申请号：PCT/US2008/050792
申请日：2008-01-10
申请人： QUALCOMM INCORPORATED , MALLADI, Durga Prasad , KIM, Byoung-hoon , LUO, Tao
发明人： MALLADI, Durga Prasad , KIM, Byoung-hoon , LUO, Tao
IPC分类号： H04B1/707 , H04L27/26
CPC分类号： H04W48/16 , H04J11/0069 , H04L27/2613 , H04L27/2655 , H04L27/2675
摘要： Systems and methodologies are described that facilitate searches for a cell in a wireless communication environment. A mobile device can employ a searcher that can detect timing information respectively associated with PSCs and cells to determine the cell with the highest correlation. The searcher can detect SSCs, which can include detecting associated phase information, to determine the SSC with the highest correlation, CP length, and/or other information to facilitate identifying a desired cell having the strongest signal to establish communication between the mobile device and the desired cell. PSCs respectively associated with cells can have different positions in the symbol sequences, and SSCs can respectively be phase shifted at different angles to facilitate detection and identification of a cell(s), where a PSC can be utilized as a phase reference by the associated SSC.
摘要翻译：描述了便于在无线通信环境中搜索小区的系统和方法。移动设备可以使用搜索器，其可以检测分别与PSC和小区相关联的定时信息，以确定具有最高相关性的小区。搜索器可以检测SSC，其可以包括检测相关联的相位信息，以确定具有最高相关性，CP长度和/或其他信息的SSC，以便于识别具有最强信号的期望小区，以建立移动设备与想要的细胞。分别与单元相关联的PSC可以在符号序列中具有不同的位置，并且SSC可以分别以不同的角度相移以促进单元的检测和识别，其中PSC可以被相关联的SSC用作相位参考。

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