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1. 发明授权

US08644422B2 Low overhead PMI and CQI feedback and pairing schemes for MU-MIMO 失效
标题翻译：用于MU-MIMO的低开销PMI和CQI反馈和配对方案
公开(公告)号：US08644422B2
公开(公告)日：2014-02-04
申请号：US12705482
申请日：2010-02-12
申请人： Shiwei Gao , Hua Xu , Yongkang Jia , Amin Mobasher , Alireza Bayesteh , Zhijun Cai
发明人： Shiwei Gao , Hua Xu , Yongkang Jia , Amin Mobasher , Alireza Bayesteh , Zhijun Cai
IPC分类号： H03K9/00 , H04L27/06
CPC分类号： H04L25/03343 , H04B7/0452 , H04B7/0465 , H04B7/0478 , H04B7/0632 , H04B7/0639 , H04B7/0641 , H04B7/0658 , H04L1/0026 , H04L1/0029 , H04L1/0031 , H04L2025/03426 , H04L2025/03605 , H04L2025/03808 , H04W24/00 , H04W72/00
摘要： A method is provided for searching for a pairing PMI including estimating a MIMO wireless propagation channel from an access point transmitter to a receiver at a UE; quantizing the estimated channel with a codebook consisting of a plurality of codewords, the result being an actual SU-MIMO PMI currently applicable to the UE; estimating the channel quality corresponding to the actual SU-MIMO PMI, resulting in at least one CQI for the UE; constructing a plurality of subsets from a codebook of codewords, wherein each subset comprises potential MU-MIMO PMIs that represent channels that have reduced interference with a channel represented by one of the potential SU-MIMO PMIs; associating each potential SU-MIMO PMI with the subset that comprises the potential MU-MIMO PMIs that represent channels that have reduced interference with the channel represented by that potential SU-MIMO PMI; searching for an appropriate pairing PMI and the associated CQI for the UE.
摘要翻译：提供了一种用于搜索配对PMI的方法，包括：估计来自接入点发射机的MIMO无线传播信道到UE处的接收机; 使用由多个码字组成的码本量化估计信道，其结果是当前适用于UE的实际SU-MIMO PMI; 估计与实际SU-MIMO PMI相对应的信道质量，从而产生用于UE的至少一个CQI; 从代码字的码本构建多个子集，其中每个子集包括潜在的MU-MIMO PMI，其表示对由潜在的SU-MIMO PMI之一表示的信道具有减小的干扰的信道; 将每个潜在的SU-MIMO PMI与包含潜在的MU-MIMO PMI的子集相关联，所述潜在MU-MIMO PMI表示与由该潜在SU-MIMO PMI表示的信道具有减小的干扰的信道; 搜索用于UE的适当配对PMI和相关联的CQI。

2. 发明申请

US20110200131A1 Low Overhead PMI and CQI Feedback and Pairing Schemes for MU-MIMO 失效
标题翻译：用于MU-MIMO的低开销PMI和CQI反馈和配对方案
公开(公告)号：US20110200131A1
公开(公告)日：2011-08-18
申请号：US12705482
申请日：2010-02-12
申请人： Shiwei Gao , Hua Xu , Yongkang Jia , Amin Mobasher , Alireza Bayesteh , Zhijun Cai
发明人： Shiwei Gao , Hua Xu , Yongkang Jia , Amin Mobasher , Alireza Bayesteh , Zhijun Cai
IPC分类号： H04B7/02
CPC分类号： H04L25/03343 , H04B7/0452 , H04B7/0465 , H04B7/0478 , H04B7/0632 , H04B7/0639 , H04B7/0641 , H04B7/0658 , H04L1/0026 , H04L1/0029 , H04L1/0031 , H04L2025/03426 , H04L2025/03605 , H04L2025/03808 , H04W24/00 , H04W72/00
摘要： A method is provided for searching for a pairing PMI including estimating a MIMO wireless propagation channel from an access point transmitter to a receiver at a UE; quantizing the estimated channel with a codebook consisting of a plurality of codewords, the result being an actual SU-MIMO PMI currently applicable to the UE; estimating the channel quality corresponding to the actual SU-MIMO PMI, resulting in at least one CQI for the UE; constructing a plurality of subsets from a codebook of codewords, wherein each subset comprises potential MU-MIMO PMIs that represent channels that have reduced interference with a channel represented by one of the potential SU-MIMO PMIs; associating each potential SU-MIMO PMI with the subset that comprises the potential MU-MIMO PMIs that represent channels that have reduced interference with the channel represented by that potential SU-MIMO PMI; searching for an appropriate pairing PMI and the associated CQI for the UE.
摘要翻译：提供了一种用于搜索配对PMI的方法，包括：估计来自接入点发射机的MIMO无线传播信道到UE处的接收机; 使用由多个码字组成的码本量化估计信道，其结果是当前适用于UE的实际SU-MIMO PMI; 估计与实际SU-MIMO PMI相对应的信道质量，从而产生用于UE的至少一个CQI; 从代码字的码本构建多个子集，其中每个子集包括潜在的MU-MIMO PMI，其表示对由潜在的SU-MIMO PMI之一表示的信道具有减小的干扰的信道; 将每个潜在的SU-MIMO PMI与包含潜在的MU-MIMO PMI的子集相关联，所述潜在MU-MIMO PMI表示与由该潜在SU-MIMO PMI表示的信道具有减小的干扰的信道; 搜索用于UE的适当配对PMI和相关联的CQI。

3. 发明申请

US20130194908A1 Method of Resource Allocation and Signaling for Aperiodic Channel Sounding 审中-公开
标题翻译：资源分配和非周期通道探测信号的方法
公开(公告)号：US20130194908A1
公开(公告)日：2013-08-01
申请号：US13814848
申请日：2010-08-13
申请人： Shiwei Gao , Robert Mark Harrison , Zhijun Cai , Yongkang Jia , Hua Xu , Jack Anthony Smith , James Earl Womack
发明人： Shiwei Gao , Robert Mark Harrison , Zhijun Cai , Yongkang Jia , Hua Xu , Jack Anthony Smith , James Earl Womack
IPC分类号： H04W72/04
CPC分类号： H04W72/0406 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/0091
摘要： A method for resource allocation. The method includes signaling a set of SRS subframes in which an SRS can be transmitted, wherein a UE not capable of aperiodic SRS transmission can be instructed to transmit periodic SRS in any of the SRS subframes. The method further includes signaling which of the SRS subframes are to be used for periodic SRS transmissions and which are to be used for aperiodic SRS transmissions, wherein a periodic SRS transmission is an SRS transmission that is transmitted by a UE in a first subframe, the first subframe being determined at least by the subframe in which the UE transmitted a previous SRS and an SRS periodicity, and wherein an aperiodic SRS transmission is an SRS transmission that is transmitted by a UE in a second subframe, the second subframe being determined at least by a transmission on a physical control channel to the UE.
摘要翻译：资源分配方法。该方法包括发送一组可以发送SRS的SRS子帧的集合，其中可以指示不能进行非周期性SRS传输的UE能够在任何一个SRS子帧中发送周期性SRS。该方法进一步包括：将SRS子帧中的哪一个用于周期性SRS传输，哪些用于非周期性SRS传输，其中周期性SRS传输是在第一子帧中由UE传输的SRS传输，第一子帧至少由UE发送先前SRS的子帧和SRS周期确定，并且其中非周期性SRS传输是由UE在第二子帧中发送的SRS传输，第二子帧至少被确定通过物理控制信道上的传输到UE。

4. 发明授权

US09107173B2 Method and system for access and uplink power control for a wireless system having multiple transmit points 有权
标题翻译：用于具有多个发射点的无线系统的接入和上行链路功率控制的方法和系统
公开(公告)号：US09107173B2
公开(公告)日：2015-08-11
申请号：US13208659
申请日：2011-08-12
申请人： Shiwei Gao , Hua Xu , Shiguang Guo , Dongsheng Yu , Yongkang Jia , Masoud Ebrahimi Tazeh Mahalleh , Tarik Tabet , Youn Hyoung Heo , Zhijun Cai
发明人： Shiwei Gao , Hua Xu , Shiguang Guo , Dongsheng Yu , Yongkang Jia , Masoud Ebrahimi Tazeh Mahalleh , Tarik Tabet , Youn Hyoung Heo , Zhijun Cai
IPC分类号： H04W52/24 , H04W74/08 , H04W74/00 , H04W48/20 , H04W52/14 , H04W84/04 , H04W52/50 , H04W52/40
CPC分类号： H04W52/244 , H04W48/20 , H04W52/146 , H04W52/242 , H04W52/40 , H04W52/50 , H04W74/004 , H04W74/0833 , H04W84/045
摘要： A method and system for access and uplink power control for a wireless system having multiple transmit points. In one aspect a method operating in a wireless network having a plurality of transmission points (TP) including a macro evolved Node B (eNB) and at least one low power node (LPN) having transmit power lower than that of the macro eNB, the method detecting, by the user equipment, a transmission point having a lowest path loss to the user equipment; and transmitting, by the user equipment, a physical random access channel (PRACH) preamble on a PRACH directed to the transmission points having the lowest path losses.
摘要翻译：一种用于具有多个发射点的无线系统的接入和上行链路功率控制的方法和系统。在一个方面，一种在具有包括宏演进节点B（eNB）和发射功率低于宏eNB的发射功率的至少一个低功率节点（LPN）的多个传输点（TP）的无线网络中运行的方法，由所述用户设备向所述用户设备检测具有最低路径损耗的传输点; 并且由用户设备在针对具有最低路径损耗的传输点的PRACH上发送物理随机接入信道（PRACH）前导码。

5. 发明授权

US08965443B2 Method and system for access and uplink power control for a wireless system having multiple transmit points 有权
标题翻译：用于具有多个发射点的无线系统的接入和上行链路功率控制的方法和系统
公开(公告)号：US08965443B2
公开(公告)日：2015-02-24
申请号：US13208723
申请日：2011-08-12
申请人： Shiwei Gao , Hua Xu , Dongsheng Yu , Yongkang Jia , Masoud Ebrahimi Tazeh Mahalleh , Tarik Tabet , Youn Hyoung Heo , Zhijun Cai
发明人： Shiwei Gao , Hua Xu , Dongsheng Yu , Yongkang Jia , Masoud Ebrahimi Tazeh Mahalleh , Tarik Tabet , Youn Hyoung Heo , Zhijun Cai
IPC分类号： H04B7/00 , H04W52/24 , H04W74/00 , H04W48/20 , H04W52/14 , H04W84/04 , H04W52/50
CPC分类号： H04W52/244 , H04W48/20 , H04W52/146 , H04W52/242 , H04W52/40 , H04W52/50 , H04W74/004 , H04W74/0833 , H04W84/045
摘要： A method and system for access and uplink power control for a wireless system having multiple transmit points. In one aspect, a method at a user equipment operating in a wireless network having a plurality of transmission points including a macro evolved Node B (‘eNB’) and at least one low power node (‘LPN’) having transmit power lower than that of the macro eNB, the method finding, at the user equipment, at least one reference transmission point, the finding utilizing at least one of a calculation at the user equipment and a message from a network element; and performing, by the user equipment, uplink power control based on the at least one reference transmission.
摘要翻译：一种用于具有多个发射点的无线系统的接入和上行链路功率控制的方法和系统。一方面，在具有多个传输点的无线网络中操作的用户设备的方法，所述多个传输点包括宏演进节点B（'eNB'）和至少一个低功率节点（'LPN'），所述至少一个低功率节点（'LPN'）具有低于该传输功率的传输功率。所述方法在所述用户设备处发现至少一个参考传输点，所述发现利用所述用户设备的计算和来自网络元件的消息中的至少一个; 以及由所述用户设备执行基于所述至少一个参考传输的上行链路功率控制。

6. 发明申请

US20130003663A1 Transmit Downlink Control Information With Higher Order Modulation 失效
标题翻译：使用高阶调制传输下行链路控制信息
公开(公告)号：US20130003663A1
公开(公告)日：2013-01-03
申请号：US13174334
申请日：2011-06-30
申请人： Yufei Wu Blankenship , Michael Eoin Buckley , Zhijun Cai , Hua Xu , Sophie Vrzic , Shiwei Gao , Youn Hyoung Heo
发明人： Yufei Wu Blankenship , Michael Eoin Buckley , Zhijun Cai , Hua Xu , Sophie Vrzic , Shiwei Gao , Youn Hyoung Heo
IPC分类号： H04W74/04 , H04W72/04 , H04W92/00
CPC分类号： H04L5/0053 , H04L1/0004
摘要： A method is provided for applying HOM to a PDCCH to transmit control information from an access node to a UE. The method comprises: selecting a DCI format for a HOM PDCCH; determining a DCI block of the HOM PDCCH according to the selected DCI format; generating a sequence of coded bits to be transmitted from the DCI block; multiplexing the sequence of coded bits of the HOM PDCCH with coded bits of other PDCCHs to form a sequence of multiplexed bits; scrambling the sequence of multiplexed bits to form a sequence of scrambled bits; modulating the scrambled bits to form a sequence of modulation symbols; and transmitting the sequence of modulation symbols, where a PDCCH is transmitted on an aggregation of one or more CCEs.
摘要翻译：提供了一种用于将HOM应用于PDCCH以将控制信息从接入节点传送到UE的方法。该方法包括：为HOM PDCCH选择DCI格式; 根据选择的DCI格式确定HOM PDCCH的DCI块; 产生要从DCI块发送的编码比特序列; 将HOM PDCCH的编码比特序列与其它PDCCH的编码比特进行多路复用，以形成多路复用比特序列; 对多路复用位序列进行加扰，形成加扰比特序列; 调制所述加扰比特以形成调制符号序列; 以及发送调制符号序列，其中在一个或多个CCE的聚合上发送PDCCH。

7. 发明申请

US20130003604A1 Method and Apparatus for Enhancing Downlink Control Information Transmission 审中-公开
标题翻译：用于增强下行链路控制信息传输的方法和装置
公开(公告)号：US20130003604A1
公开(公告)日：2013-01-03
申请号：US13174342
申请日：2011-06-30
申请人： Yufei Wu Blankenship , Michael Eoin Buckley , Zhijun Cai , Hua Xu , Sophie Vrzic , Shiwei Gao , Youn Hyoung Heo
发明人： Yufei Wu Blankenship , Michael Eoin Buckley , Zhijun Cai , Hua Xu , Sophie Vrzic , Shiwei Gao , Youn Hyoung Heo
IPC分类号： H04W72/04 , H04W16/06
CPC分类号： H04L5/0053 , H04L5/0023
摘要： A method is provided for transmitting an extended physical downlink control channel (E-PDCCH). The method comprises transmitting control information in at least one time-frequency resource unit that would otherwise be used to carry a physical downlink shared channel (PDSCH). The E-PDCCH and at least one PDSCH are multiplexed in a transmission time interval. A first set of configuration of the E-PDCCH is semi-statically signaled and a second set of configuration of the E-PDCCH is dynamically signaled.
摘要翻译：提供一种用于发送扩展物理下行链路控制信道（E-PDCCH）的方法。该方法包括在否则将用于携带物理下行链路共享信道（PDSCH）的至少一个时间 - 频率资源单元中发送控制信息。 E-PDCCH和至少一个PDSCH在传输时间间隔中被复用。 E-PDCCH的第一组配置被半静态信号发送，并且动态地发送E-PDCCH的第二组配置。

8. 发明授权

US08537862B2 Transmit downlink control information with higher order modulation 失效
标题翻译：以较高阶调制发送下行控制信息
公开(公告)号：US08537862B2
公开(公告)日：2013-09-17
申请号：US13174334
申请日：2011-06-30
申请人： Yufei Wu Blankenship , Michael Eoin Buckley , Zhijun Cai , Hua Xu , Sophie Vrzic , Shiwei Gao , Youn Hyoung Heo
发明人： Yufei Wu Blankenship , Michael Eoin Buckley , Zhijun Cai , Hua Xu , Sophie Vrzic , Shiwei Gao , Youn Hyoung Heo
IPC分类号： H04J1/00
CPC分类号： H04L5/0053 , H04L1/0004
摘要： A method is provided for applying HOM to a PDCCH to transmit control information from an access node to a UE. The method comprises: selecting a DCI format for a HOM PDCCH; determining a DCI block of the HOM PDCCH according to the selected DCI format; generating a sequence of coded bits to be transmitted from the DCI block; multiplexing the sequence of coded bits of the HOM PDCCH with coded bits of other PDCCHs to form a sequence of multiplexed bits; scrambling the sequence of multiplexed bits to form a sequence of scrambled bits; modulating the scrambled bits to form a sequence of modulation symbols; and transmitting the sequence of modulation symbols, where a PDCCH is transmitted on an aggregation of one or more CCEs.
摘要翻译：提供了一种用于将HOM应用于PDCCH以将控制信息从接入节点传送到UE的方法。该方法包括：为HOM PDCCH选择DCI格式; 根据选择的DCI格式确定HOM PDCCH的DCI块; 产生要从DCI块发送的编码比特序列; 将HOM PDCCH的编码比特序列与其它PDCCH的编码比特进行多路复用，以形成多路复用比特序列; 对多路复用位序列进行加扰，形成加扰比特序列; 调制所述加扰比特以形成调制符号序列; 以及发送调制符号序列，其中在一个或多个CCE的聚合上发送PDCCH。

9. 发明授权

US08576775B2 Hybrid-QRD-SIC and imbalanced MCS system and method for MIMO 有权
标题翻译：混合QRD-SIC和不平衡MCS系统和MIMO方法
公开(公告)号：US08576775B2
公开(公告)日：2013-11-05
申请号：US12768262
申请日：2010-04-27
申请人： Yongkang Jia , Mo-Han Fong , Zhijun Cai , Yi Yu , Hua Xu
发明人： Yongkang Jia , Mo-Han Fong , Zhijun Cai , Yi Yu , Hua Xu
IPC分类号： H04B1/00
CPC分类号： H04L25/0328 , H04J11/004 , H04J11/0043 , H04L1/0048 , H04L25/03331 , H04L2025/03426
摘要： A method and system for multiple input, multiple output (MIMO) detection and channel decoding comprising: decomposing a channel complex gain matrix into a unitary matrix and an upper right hand triangular matrix; providing a received signal to a complex conjugate transpose of the unitary matrix, thereby creating a plurality of signals; normalizing a last of the plurality of signals; channel decoding the normalized last of the plurality of signals, thereby recovering a last codeword signal; encoding the last codeword signal; utilizing the encoded last codeword signal to recover a second last codeword signal; and repeating the utilizing until all codeword signals are recovered. Also, a method and system for providing an imbalanced modulation and coding scheme for successive interference cancellation.
摘要翻译：一种用于多输入多输出（MIMO）检测和信道解码的方法和系统，包括：将信道复增益矩阵分解为单一矩阵和右上角三角矩阵; 将接收的信号提供给酉矩阵的复共轭转置，从而产生多个信号; 归一化所述多个信号中的最后一个信号; 对所述多个信号中的归一化最后一个信道进行解码，从而恢复最后的码字信号; 对最后一个码字信号进行编码; 利用编码的最后码字信号来恢复第二最后码字信号; 并重复利用直到所有码字信号被恢复。而且，提供用于连续干扰消除的不平衡调制和编码方案的方法和系统。

10. 发明申请

US20120213167A1 Method and System for Signaling Transmission Layers for Single User and Multi User MIMO 有权
标题翻译：用于单用户和多用户MIMO的信令传输层的方法和系统
公开(公告)号：US20120213167A1
公开(公告)日：2012-08-23
申请号：US13328772
申请日：2011-12-16
申请人： Hua Xu , Yongkang Jia , Zhijun Cai , Youn Hyoung Heo , Andrew Mark Earnshaw , Robert Mark Harrison , Sean McBeath , Mo-Han Fong
发明人： Hua Xu , Yongkang Jia , Zhijun Cai , Youn Hyoung Heo , Andrew Mark Earnshaw , Robert Mark Harrison , Sean McBeath , Mo-Han Fong
IPC分类号： H04W72/04
CPC分类号： H04W72/042 , H04B7/0413 , H04B7/0452 , H04B7/0469 , H04L5/0023 , H04L5/0048 , H04L5/0051 , H04L5/0094 , H04W52/143 , H04W72/0466
摘要： A method and system to signal transmission layers or dedicated reference signal ports to be used in a multiple input multiple output system, the method including providing a downlink control signal containing information for transmission layers or dedicated reference signal ports utilized, the dedicated reference signal ports being associated with the transmission layers; and using the information to demodulate data on each transmission layer.
摘要翻译：一种用于在多输入多输出系统中使用的信号传输层或专用参考信号端口的方法和系统，所述方法包括提供包含用于传输层或专用参考信号端口的信息的下行链路控制信号，所述专用参考信号端口是与传输层相关联; 并使用该信息来解调每个传输层上的数据。

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