公开(公告)号：US09197387B2

公开(公告)日：2015-11-24

申请号：US13569606

申请日：2012-08-08

Applicant: Ravikiran Nory ,  Sandeep H. Krishnamurthy ,  Robert T. Love ,  Vijay Nangia ,  Ajit Nimbalker ,  Krishna Kamal Sayana ,  Xiangyang Zhuang

Inventor： Ravikiran Nory ,  Sandeep H. Krishnamurthy ,  Robert T. Love ,  Vijay Nangia ,  Ajit Nimbalker ,  Krishna Kamal Sayana ,  Xiangyang Zhuang

IPC: H04L5/00

CPC classification number: H04L5/0053 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0092

Abstract: A user equipment (UE) receives a signal comprising multiple resource blocks and configured for receiving a subframe comprising multiple time-frequency resources, the time-frequency resources comprising at least two control channel candidates. The UE determines a first control channel candidate of the at least two control channel candidates in the subframe, determines a first antenna port (AP) associated with the first control channel candidate, decodes the first control channel candidate based on the first AP, determines a second control channel candidate of the at least two control channel candidates in the subframe, determines a second AP associated with the second control channel candidate, and decodes the second control channel candidate based on the second AP, wherein the AP used for decoding the first control channel candidate is distinct from the AP used for decoding the second control channel candidate.

Abstract translation: 用户设备（UE）接收包括多个资源块的信号，并且被配置为用于接收包括多个时间 - 频率资源的子帧，所述时间 - 频率资源包括至少两个控制信道候选。 UE确定子帧中的至少两个控制信道候选的第一控制信道候选，确定与第一控制信道候选相关联的第一天线端口（AP），基于第一AP对第一控制信道候选进行解码， 子帧中的至少两个控制信道候选的第二控制信道候选，确定与第二控制信道候选相关联的第二AP，并且基于第二AP解码第二控制信道候选，其中用于解码第一控制的AP 信道候选者与用于解码第二控制信道候选的AP不同。

公开(公告)号：US09143293B2

公开(公告)日：2015-09-22

申请号：US13495516

申请日：2012-06-13

Applicant: Krishna Kamal Sayana ,  Tyler Brown ,  Xiangyang Zhuang

Inventor： Krishna Kamal Sayana ,  Tyler Brown ,  Xiangyang Zhuang

IPC: H04W4/00 ,  G04C17/00 ,  H04L5/00 ,  H04B7/02 ,  H04L5/16 ,  H04B7/04 ,  H04L25/02

CPC classification number: H04L5/0035 ,  H04B7/024 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0094 ,  H04L5/16 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0242

Abstract: A wireless communication terminal including a transceiver coupled to a processor and corresponding methods are disclosed. The processor is configured to determine resource elements that carry data intended for the terminal from a set of allocated resource elements that carry data intended for the terminal excluding at least resource elements associated with a first set of one or more resource elements of a particular type that are shifted relative to a known reference signal pattern. The processor is also configured to decode the resource elements that carry the data intended for the terminal based on the resource elements that carry the data intended for the terminal.

Abstract translation: 公开了一种包括耦合到处理器的收发器和相应方法的无线通信终端。 处理器被配置为确定承载来自一组分配的资源元素的资源元素的资源元素，所述资源元素携带旨在用于终端的数据至少排除与特定类型的一个或多个资源元素的第一集合相关联的资源元素， 相对于已知的参考信号图案移位。 处理器还被配置为基于承载用于终端的数据的资源元素来解码承载用于终端的数据的资源元素。

公开(公告)号：US09002354B2

公开(公告)日：2015-04-07

申请号：US12813221

申请日：2010-06-10

Applicant: Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

Inventor： Sandeep H. Krishnamurthy ,  Robert T. Love ,  Ajit Nimbalker ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC: H04W88/02 ,  H04L5/00 ,  G01S5/02 ,  G01S5/10 ,  H04W64/00 ,  G01S1/30 ,  H04L27/26

CPC classification number: H04W24/10 ,  G01S1/30 ,  G01S5/0236 ,  G01S5/10 ,  H04L5/005 ,  H04L5/0094 ,  H04L27/2656 ,  H04L43/0852 ,  H04W64/00 ,  H04W72/044 ,  Y02D30/30

Abstract: A wireless terminal receives signaling information, pertaining to a reference signal transmission in at least one specifically designated sub frame, the signaling information including a list, the list including base station identities. The terminal determines, from at least one of the base station identities in the list, the time-frequency resources associated with a reference signal transmission intended for observed time difference of arrival (OTDOA) measurements from a transmitting base station associated with said one base station identity. The time of arrival of a transmission from the transmitting base station, relative to reference timing, is measured. The wireless terminal can receive a command from a serving cell to start performing inter-frequency OTDOA measurement on a frequency layer containing reference signals, the frequency layer distinct from the serving frequency layer, the serving frequency layer not containing positioning reference signals. The wireless terminal can perform OTDOA measurements subsequent to the reception of the command on a carrier frequency different from the serving cell carrier frequency. A base station transmitter can jointly schedule a reference signal transmission from a plurality of base station transmitters for the purpose of OTD estimation enhancement, and transmit identical reference signals from the plurality of base station transmitters, the reference signals being identical both in the signal sequence and time-frequency resources used for transmission.

Abstract translation: 无线终端接收属于至少一个具体指定的子帧中的参考信号传输的信令信息，所述信令信息包括列表，所述列表包括基站标识。 终端从列表中的至少一个基站标识确定与来自与所述一个基站相关联的发射基站的观测到达时间差（OTDOA）测量的参考信号传输相关联的时间 - 频率资源 身份 来自发射基站的传输相对于参考定时的到达时间被测量。 无线终端可以接收来自服务小区的命令，以在包含参考信号的频率层（不同于服务频率层的频率层，不包含定位参考信号的服务频率层）开始执行频率间OTDOA测量。 无线终端可以在与服务小区载波频率不同的载波频率上接收到该命令之后执行OTDOA测量。 为了OTD估计增强的目的，基站发射机可以共同安排来自多个基站发射机的参考信号传输，并且从多个基站发射机发送相同的参考信号，参考信号在信号序列和 用于传输的时频资源。

公开(公告)号：US08811510B2

公开(公告)日：2014-08-19

申请号：US12577105

申请日：2009-10-09

Applicant: Xiangyang Zhuang ,  Tyler Brown

Inventor： Xiangyang Zhuang ,  Tyler Brown

IPC: H04B7/02 ,  H04L1/02

CPC classification number: H04W72/0413 ,  H04B7/0456 ,  H04L25/0204 ,  H04L25/021 ,  H04L25/0228 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W72/042

Abstract: A method, a wireless terminal device, and a base station are disclosed. A receiving unit 408 may receive from a base station an antenna precoding instruction for an uplink transmission. A processor 304 may execute a modification of the antenna precoding instruction according to a transmit antenna adapter into a customized precoding. A transmitting unit 406 may perform the uplink transmission according to the customized precoding.

Abstract translation: 公开了一种方法，无线终端装置和基站。 接收单元408可以从基站接收用于上行链路传输的天线预编码指令。 处理器304可以根据发射天线适配器执行对定制预编码的天线预编码指令的修改。 发送单元406可以根据定制的预编码来执行上行链路传输。

公开(公告)号：US08730925B2

公开(公告)日：2014-05-20

申请号：US12756777

申请日：2010-04-08

Applicant: Colin D. Frank ,  Sandeep H. Krishnamurthy ,  Kenneth A. Stewart ,  Xiangyang Zhuang ,  Robert T. Love

Inventor： Colin D. Frank ,  Sandeep H. Krishnamurthy ,  Kenneth A. Stewart ,  Xiangyang Zhuang ,  Robert T. Love

IPC: H04J3/00 ,  H04L12/26 ,  H04J3/06 ,  H04J3/16 ,  H04W24/00

CPC classification number: G01S5/10 ,  G01S5/0205

Abstract: A base station communicates a positioning reference signal (PRS) to wireless communication devices over a downlink in a wireless communication system by encoding a PRS into a first set of transmission resources, encoding other information into a second set of transmission resources, multiplexing the two sets of resources into a subframe such that the first set of resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of resources is multiplexed into a second set of OFDM symbols. Upon receiving the subframe, a wireless communication device determines which set of transmission resources contains the PRS based on the identifier associated with the base station that transmitted the subframe and processes the set of resources containing the PRS to estimate timing (e.g., time of arrival) information.

Abstract translation: 基站通过将PRS编码为第一组传输资源，将其它信息编码为第二组传输资源，将无线通信设备中的定位参考信号（PRS）传送到无线通信系统中的下行链路， 的资源转换成子帧，使得第一资源集合基于与基站相关联的标识符被多路复用到第一组正交频分复用（OFDM）符号的至少一部分中，并且第二组资源被多路复用为 第二组OFDM符号。 在接收到子帧时，无线通信设备基于与发送子帧的基站相关联的标识符来确定哪一组传输资源包含PRS，并处理包含PRS的资源集合以估计定时（例如，到达时间） 信息。

公开(公告)号：US08638871B2

公开(公告)日：2014-01-28

申请号：US12340857

申请日：2008-12-22

Applicant: Thomas P. Krauss ,  Frederick W. Vook ,  Xiangyang Zhuang

Inventor： Thomas P. Krauss ,  Frederick W. Vook ,  Xiangyang Zhuang

IPC: H04B7/02

CPC classification number: H04B7/0413 ,  H04B7/0617 ,  H04B7/10 ,  H04B17/21

Abstract: Specifically, a method and system that performs MIMO and beamforming at a base station based on an uplink channel sounding (ULCS) from only one of the mobile station antennas and closed-loop multiple input, multiple output (MIMO) schemes based on the singular value decomposition (SVD) of the channel matrix. The ULCS is limited to sounding and the channel uses fewer than an optimal number of transmit antennas (e.g. one for WiMAX). The base station arrays may be configured for a full array transmitting mode or a sub-array transmitting mode.

Abstract translation: 具体地说，一种基于仅从移动台天线和闭环多路输入，基于奇异值的多输出（MIMO）方案中的上行链路信道探测（ULCS）在基站执行MIMO和波束成形的方法和系统 信道矩阵的分解（SVD）。 ULCS仅限于探测，并且该信道使用少于最佳数量的发射天线（例如一个用于WiMAX）。 基站阵列可以被配置为全阵列发送模式或子阵列发送模式。

公开(公告)号：US08509319B2

公开(公告)日：2013-08-13

申请号：US13251763

申请日：2011-10-03

Applicant: Tyler A. Brown ,  Krishna Kamal Sayana ,  Xiangyang Zhuang

Inventor： Tyler A. Brown ,  Krishna Kamal Sayana ,  Xiangyang Zhuang

IPC: H04B7/02

CPC classification number: H04L1/06 ,  H04L1/1887

Abstract: A method in a wireless communication device includes receiving precoding matrix information including first and second precoding submatrices, transmitting a first transport block from a first set of at least two antennas according to the first precoding submatrix and a second transport block from a second set of at least two antennas according to the second precoding submatrix, receiving a retransmission request for the second transport block, and retransmitting the second transport block according to a retransmission precoding matrix from at least one of the first set of antennas and at least one of the second set of antennas.

Abstract translation: 一种无线通信设备中的方法包括：接收包括第一和第二预编码子矩阵的预编码矩阵信息，根据第一预编码子矩阵从第一组至少两个天线发送第一传输块;以及第二传输块， 根据所述第二预编码子矩阵的至少两个天线，接收对所述第二传输块的重传请求，并且根据来自所述第一组天线中的至少一个和所述第二组中的至少一个的重传预编码矩阵重传所述第二传输块 的天线。

公开(公告)号：US08422411B2

公开(公告)日：2013-04-16

申请号：US11868526

申请日：2007-10-07

Applicant: Pallav Sudarshan ,  Kenneth A. Stewart ,  Xiangyang Zhuang

Inventor： Pallav Sudarshan ,  Kenneth A. Stewart ,  Xiangyang Zhuang

IPC: H04J1/00 ,  H04J3/00 ,  H04W4/00

CPC classification number: H04B7/2656

Abstract: A wireless communication system frame structure configurable to serve to half-duplex user terminals or a mixture of half-duplex and full-duplex user terminals based on a grouping of the user terminals according to one or more criteria. In one embodiment, user terminals are switched from one group to another. A user terminal signaling mechanism is also provided.

Abstract translation: 一种无线通信系统帧结构，其可配置为根据一个或多个标准，基于用户终端的分组来服务于半双工用户终端或半双工和全双工用户终端的混合。 在一个实施例中，用户终端从一组切换到另一组。 还提供了一种用户终端信令机制。

公开(公告)号：US20130044664A1

公开(公告)日：2013-02-21

申请号：US13569646

申请日：2012-08-08

Applicant: Ravikiran Nory ,  Sandeep H. Krishnamurthy ,  Robert T. Love ,  Vijay Nangia ,  Ajit Nimbalker ,  Krishna Kamal Sayana ,  Xiangyang Zhuang

Inventor： Ravikiran Nory ,  Sandeep H. Krishnamurthy ,  Robert T. Love ,  Vijay Nangia ,  Ajit Nimbalker ,  Krishna Kamal Sayana ,  Xiangyang Zhuang

IPC: H04W72/04 ,  H04W4/06 ,  H04W24/00

CPC classification number: H04L1/0045

Abstract: A communication system is provided wherein a user equipment (UE) receives control information from a wireless network. The UE monitors control channel candidates using common reference signals (CRS) and monitors enhanced control channel candidates using demodulation reference signals (DMRS) when the UE is configured in a first transmission mode, such as transmission mode 9, for receiving a downlink shared traffic channel based on DMRS. The UE monitors control channel candidates only using CRS when the UE is configured in a second transmission mode, such as any of transmission modes 1-6, for receiving a downlink shared traffic channel based on CRS. The UE then receives downlink control information (DCI) in a subframe in one of the monitored control channel candidates or enhanced control channel candidates in the subframe.

Abstract translation: 提供了一种通信系统，其中用户设备（UE）从无线网络接收控制信息。 UE使用公共参考信号（CRS）监视控制信道候选，并且当UE被配置在诸如传输模式9的第一传输模式中时，使用解调参考信号（DMRS）监视增强的控制信道候选，用于接收下行链路共享业务信道 基于DMRS。 当UE以诸如传输模式1-6中的任一种的第二传输模式配置用于基于CRS接收下行链路共享业务信道时，UE仅使用CRS监视控制信道候选。 然后，UE在子帧中的所监视的控制信道候选或增强控制信道候选中的一个子帧中接收下行链路控制信息（DCI）。

公开(公告)号：US20120281556A1

公开(公告)日：2012-11-08

申请号：US13099177

申请日：2011-05-02

Applicant: Krishna Kamal Sayana ,  Xiangyang Zhuang

Inventor： Krishna Kamal Sayana ,  Xiangyang Zhuang

IPC: H04W24/00

CPC classification number: H04B7/024 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0091

Abstract: A method is described for fast coordinated transmissions in a multi-point system, which involves a UE receiving known pilot signals sent from a set of transmission antennas and determining, based on the known pilot signals from the set of transmission antennas, a recommended first subset of transmission antennas from which transmissions are not intended for the wireless communication device, and a recommended second subset of transmission antennas from which transmissions are intended for the wireless communication device. The UE also determines a recommended transmission power setting of each of the first subset of transmission antennas; sending information to the base station, wherein the information pertains to the recommended first and second subsets of transmission antennas and the recommended transmission power setting of each of the first subset of transmission antennas.

Abstract translation: 描述了一种用于多点系统中的快速协调传输的方法，其涉及UE接收从一组发射天线发送的已知导频信号，并且基于来自该组发射天线的已知导频信号，确定推荐的第一子集 传输不用于无线通信设备的传输天线以及传输用于无线通信设备的推荐的发射天线子集。 UE还确定发射天线的第一子集中的每一个的推荐发射功率设置; 向所述基站发送信息，其中所述信息涉及所述推荐的发送天线的第一和第二子集以及所述第一发射天线子集的所推荐的发射功率设置。