公开(公告)号：US08600441B2

公开(公告)日：2013-12-03

申请号：US12819922

申请日：2010-06-21

申请人： Hua Xu ,  Zhijun Cai ,  Yi Yu

发明人： Hua Xu ,  Zhijun Cai ,  Yi Yu

IPC分类号： H04W88/08 ,  H04B7/204 ,  H04B7/10

CPC分类号： H04B7/022 ,  H04B7/0408 ,  H04B7/15592 ,  H04L1/1893 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0051 ,  H04L25/0224 ,  H04L2001/0097

摘要： A system and method for use in a communication system that includes at least one base station and at least one relay node (RN) for communicating with a user agent (UA), the system comprising a base station that includes a processor and an antenna assembly capable of simultaneously transmitting at least first and second layer base station beams to the UA and a relay node (RN) that includes a processor and an antenna assembly capable of simultaneously transmitting at least first and second layer RN beams to the UA, wherein the first base station beam and first RN beam superpose on each other during transmission and the second base station beam and second RN beam superpose on each other during transmission so that the RN is transparent to the UA.

摘要翻译： 一种在包括至少一个基站和用于与用户代理（UA）通信）的至少一个中继节点（RN）的通信系统中使用的系统和方法，所述系统包括基站，所述基站包括处理器和天线组件 能够同时将至少第一和第二层基站波束发送到UA，以及包括处理器和能够同时向UA传送至少第一和第二层RN波束的天线组件的中继节点（RN），其中第一 基站波束和第一RN波束在传输期间彼此叠加，并且第二基站波束和第二RN波束在传输期间彼此重叠，使得RN对于UA是透明的。

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。

公开(公告)号：US20100323612A1

公开(公告)日：2010-12-23

申请号：US12819922

申请日：2010-06-21

申请人： Hua Xu ,  Zhijun Cai ,  Yi Yu

发明人： Hua Xu ,  Zhijun Cai ,  Yi Yu

IPC分类号： H04B7/14

CPC分类号： H04B7/022 ,  H04B7/0408 ,  H04B7/15592 ,  H04L1/1893 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0051 ,  H04L25/0224 ,  H04L2001/0097

摘要： A system and method for use in a communication system that includes at least one base station and at least one relay node (RN) for communicating with a user agent (UA), the system comprising a base station that includes a processor and an antenna assembly capable of simultaneously transmitting at least first and second layer base station beams to the UA and a relay node (RN) that includes a processor and an antenna assembly capable of simultaneously transmitting at least first and second layer RN beams to the UA, wherein the first base station beam and first RN beam superpose on each other during transmission and the second base station beam and second RN beam superpose on each other during transmission so that the RN is transparent to the UA.

摘要翻译： 一种在包括至少一个基站和用于与用户代理（UA）通信）的至少一个中继节点（RN）的通信系统中使用的系统和方法，所述系统包括基站，所述基站包括处理器和天线组件 能够同时将至少第一和第二层基站波束发送到UA，以及包括处理器和能够同时向UA传送至少第一和第二层RN波束的天线组件的中继节点（RN），其中第一 基站波束和第一RN波束在传输期间彼此叠加，并且第二基站波束和第二RN波束在传输期间彼此重叠，使得RN对于UA是透明的。

公开(公告)号：US20100271988A1

公开(公告)日：2010-10-28

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： H04W72/04 ,  H04L27/08 ,  H04B1/10 ,  H04L27/00 ,  H04J1/00 ,  H04J3/00 ,  H04J4/00

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。

公开(公告)号：US08804586B2

公开(公告)日：2014-08-12

申请号：US12685649

申请日：2010-01-11

申请人： Mo-Han Fong ,  Youn Hyoung Heo ,  Hua Xu ,  Jack Anthony Smith ,  Andrew Mark Earnshaw ,  Robert Novak ,  Zhijun Cai ,  Sean McBeath

发明人： Mo-Han Fong ,  Youn Hyoung Heo ,  Hua Xu ,  Jack Anthony Smith ,  Andrew Mark Earnshaw ,  Robert Novak ,  Zhijun Cai ,  Sean McBeath

IPC分类号： G08C17/00 ,  H04W4/00

CPC分类号： H04W72/082 ,  H04L5/0053 ,  H04W52/244 ,  H04W52/325 ,  H04W52/38 ,  H04W52/44

摘要： A method for managing control channel interference is provided. The method includes a first access node performing at least one of blanking and transmitting at lower than nominal transmit power on at least a portion of a control channel. The method further includes the first access node applying at least one of blanking and transmitting at lower than nominal transmit power only on the control region of chosen subframes, wherein a second access node transmits the control region of the chosen subframes at nominal transmit power.

摘要翻译： 提供了一种用于管理控制信道干扰的方法。 该方法包括：在控制信道的至少一部分上以低于标称发射功率执行消隐和发射中的至少一个的第一接入节点。 该方法还包括第一接入节点，仅在所选择的子帧的控制区域上施加消隐和低于标称发射功率的发射中的至少一个，其中第二接入节点以标称发射功率发射所选择的子帧的控制区域。

公开(公告)号：US08780841B2

公开(公告)日：2014-07-15

申请号：US13457313

申请日：2012-04-26

申请人： Andrew Mark Earnshaw ,  Youn Hyoung Heo ,  Zhijun Cai ,  Mo-Han Fong ,  Hua Xu

发明人： Andrew Mark Earnshaw ,  Youn Hyoung Heo ,  Zhijun Cai ,  Mo-Han Fong ,  Hua Xu

IPC分类号： H04W4/00 ,  H04L5/00 ,  H04L5/14

CPC分类号： H04W72/042 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0091 ,  H04L5/14 ,  H04L27/2602 ,  H04W72/0453

摘要： A method and apparatus for reconfiguring a user equipment configured for multi-carrier operation from a first downlink control information set to a second downlink control information set while carrier aggregation is being used, including receiving a physical downlink control channel with downlink control information formats containing a carrier indicator field.

摘要翻译： 一种方法和装置，用于在使用载波聚合的同时，将配置为多载波操作的用户设备从第一下行链路控制信息集合重新配置到第二下行链路控制信息集，包括：接收带有下行链路控制信息格式的物理下行链路控制信道， 载波指示符字段。

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。

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。

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。

公开(公告)号：US08331478B2

公开(公告)日：2012-12-11

申请号：US12684817

申请日：2010-01-08

申请人： Robert Mark Harrison ,  Hua Xu ,  Andrew Mark Earnshaw ,  Zhijun Cai

发明人： Robert Mark Harrison ,  Hua Xu ,  Andrew Mark Earnshaw ,  Zhijun Cai

IPC分类号： H04B7/02

CPC分类号： H04B7/0697 ,  H04B7/0678 ,  H04J11/0033 ,  H04J13/0003 ,  H04J13/0074 ,  H04L1/0073 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0091

摘要： A system is provided for transmitting a low code rate spatially multiplexed channel on multiple antennas. The system includes a transmitter and a processor. The processor is configured such that the processor encodes a block of information bits to form channel coded bits, wherein the ratio of the number of channel coded bits to the number of information bits is greater than one; and the processor maps the channel coded bits to modulation symbols, and each channel coded bit is mapped once to a modulation symbol. The transmitter is configured to transmit a first portion of the modulation symbols using a spreading sequence on a first antenna of the multiple antennas and to transmit a second portion of the modulation symbols using the spreading sequence on a second antenna of the multiple antennas.

摘要翻译： 提供一种用于在多个天线上发送低码率空间复用信道的系统。 该系统包括发射机和处理器。 处理器被配置为使得处理器对一组信息比特进行编码以形成信道编码比特，其中信道编码比特数与信息比特数的比率大于1; 并且处理器将信道编码比特映射到调制符号，并且每个信道编码比特被映射到调制符号一次。 发射机被配置为使用在多个天线的第一天线上的扩展序列来发送调制符号的第一部分，并且在多个天线的第二天线上使用扩展序列发送调制符号的第二部分。