公开(公告)号：US09112659B2

公开(公告)日：2015-08-18

申请号：US13448313

申请日：2012-04-16

申请人： Jianzhong Zhang ,  Joonyoung Cho

发明人： Jianzhong Zhang ,  Joonyoung Cho

IPC分类号： H04W4/00 ,  H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04L27/26

CPC分类号： H04L27/2607 ,  H04L1/16 ,  H04L1/1671 ,  H04L1/1854 ,  H04L1/1861 ,  H04L1/1893 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0055 ,  H04W72/0413 ,  H04W72/0446

摘要： Methods of a slot-level remapping physical uplink control channels into two resource blocks respectively located at two slots of a subframe, are generally adapted to a 3GPP LTE physical uplink where ACK/NAK resource blocks may be applied by the extended cyclic prefix, adapted to a complex 3GPP LTE physical uplink where mixed resource blocks (where the ACK/NAK and CQI channels coexist) may be applied by the normal cyclic prefix, and adapted to a complex 3GPP LTE physical uplink where mixed resource blocks (where the ACK/NAK and CQI channels coexist) may be applied by the extended cyclic prefix.

公开(公告)号：US09031008B2

公开(公告)日：2015-05-12

申请号：US12899362

申请日：2010-10-06

申请人： Young-Han Nam ,  Jianzhong Zhang

发明人： Young-Han Nam ,  Jianzhong Zhang

IPC分类号： H04W72/04 ,  H04K1/10 ,  H04L5/00

CPC分类号： H04B7/0473 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/0091 ,  H04W72/042

摘要： A wireless communication system includes a base station capable of communicating with a plurality of subscriber stations. The base station can transmit control information and data to a subscriber stations. The base station also can identify a set of RS patterns to be used to communicate with the subscriber station, assign a subset of antenna port numbers within the set of RS patterns to the subscriber stations. The base station can indicate the assigned states in a Downlink Control Information (DCI) format transmitted in a Physical Downlink Control Channel (PDCCH). The base station transmits the data using a subset of antenna ports corresponding to the subset of antenna port numbers. The base station also can map reference signals corresponding to the subset of antenna ports according to at least one RS pattern within the set of RS patterns.

摘要翻译： 无线通信系统包括能够与多个用户站进行通信的基站。 基站可以向用户台发送控制信息和数据。 基站还可以识别要用于与订户站通信的一组RS模式，将RS模式集合内的天线端口号的子集分配给用户站。 基站可以在物理下行链路控制信道（PDCCH）中发送的下行链路控制信息（DCI）格式中指示分配的状态。 基站使用对应于天线端口号的子集的天线端口的子集来发送数据。 基站还可以根据RS模式集合内的至少一个RS模式映射与天线端口子集对应的参考信号。

公开(公告)号：US09007973B2

公开(公告)日：2015-04-14

申请号：US13586298

申请日：2012-08-15

申请人： Boon Loong Ng ,  Jianzhong Zhang

发明人： Boon Loong Ng ,  Jianzhong Zhang

IPC分类号： G08C17/00 ,  H04W52/24 ,  H04W52/14

CPC分类号： H04W52/242 ,  H04W52/146 ,  H04W52/244 ,  H04W52/40

摘要： Dynamic switching of uplink power control and synchronization in wireless networks involves switching a user equipment (UE) from a transmission point common (TP-common) mode to a transmission point specific (TP-specific) mode in a wireless network. The UE transmits at a high power level in a TP-common mode to compensate for a larger path loss between the UE and the TPs and at a low power level in a TP-specific mode to save battery power based on a smaller path loss between the UE and a specific, nearby TP.

摘要翻译： 无线网络中的上行链路功率控制和同步的动态切换涉及在无线网络中将用户设备（UE）从传统点公共（TP-common）模式切换到特定于传输点的（TP特定）模式。 UE以TP-共模式在高功率电平下传输，以补偿UE与TP之间较大的路径损耗，并在TP特定模式下以较低功率电平进行传输，以便基于较小的路径损耗来节省电池电量 UE和特定的附近TP。

公开(公告)号：US08995385B2

公开(公告)日：2015-03-31

申请号：US13564469

申请日：2012-08-01

申请人： Young-Han Nam ,  Jianzhong Zhang ,  Jin-Kyu Han

发明人： Young-Han Nam ,  Jianzhong Zhang ,  Jin-Kyu Han

IPC分类号： H04L12/26 ,  H04W72/12

CPC分类号： H04W72/1294 ,  H04L5/0035 ,  H04L5/0051 ,  H04L5/0091 ,  H04W72/12

摘要： A user equipment (UE) is configured to communicate with a plurality of base stations in a wireless network. The UE includes a processor that receive a downlink grant scheduling a physical downlink shared channel (PDSCH) for the UE, the downlink grant being transmitted in a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH). The processor also receives UE-specific demodulation reference signals (UE-RS) provided for demodulation of the PDSCH, wherein the UE-RS are scrambled according to a scrambling sequence initialized with an initialization value cinit. The downlink grant includes a one-bit scrambling identifier (SCID) information field configured to indicate a pair of values comprising a scrambling identifier nSCID and a virtual cell ID Nv-IDcell out of two candidate pairs, the pair of values to be used for determining the initialization value cinit for the UE-RS.

摘要翻译： 用户设备（UE）被配置为与无线网络中的多个基站进行通信。 UE包括接收下行链路许可调度UE的物理下行链路共享信道（PDSCH）的处理器，下行链路许可在物理下行链路控制信道（PDCCH）或增强物理下行链路控制信道（ePDCCH）中发送。 处理器还接收为解调PDSCH提供的UE专用解调参考信号（UE-RS），其中UE-RS根据以初始化值cinit初始化的加扰序列进行加扰。 下行链路许可包括一个1比特加扰标识符（SCID）信息字段，被配置为指示包括两个候选对中的加扰标识符nSCID和虚拟小区ID Nv-IDcell的一对值，该对值用于确定 UE-RS的初始化值为。

公开(公告)号：US08755753B2

公开(公告)日：2014-06-17

申请号：US13271641

申请日：2011-10-12

申请人： Guowang Miao ,  Jianzhong Zhang

发明人： Guowang Miao ,  Jianzhong Zhang

IPC分类号： H04B17/00

CPC分类号： H04W56/00 ,  H04W24/08 ,  H04W76/28

摘要： A subscriber station is configured to perform a channel measurement on a communication channel in restricted sub-frames for DRX and NON-DRX modes. The subscriber station includes a receiver configured to receive signals from a base station. The subscriber station also includes processing circuitry. When the receiver receives higher layer signaling indicating that channel quality measurement is to be performed in restricted sub-frames for measurement (RFSM), the processing circuitry is configured to extend an evaluation period for monitoring a quality of the communication channel.

摘要翻译： 用户站被配置为在用于DRX和NON-DRX模式的受限子帧中的通信信道上执行信道测量。 用户站包括被配置为从基站接收信号的接收机。 用户台还包括处理电路。 当接收器接收到指示要在受测量的子帧（RFSM）中执行信道质量测量的较高层信令时，处理电路被配置为扩展用于监视通信信道质量的评估周期。

公开(公告)号：US08737504B2

公开(公告)日：2014-05-27

申请号：US12896738

申请日：2010-10-01

申请人： Lingjia Liu ,  Jianzhong Zhang ,  Young-Han Nam

发明人： Lingjia Liu ,  Jianzhong Zhang ,  Young-Han Nam

IPC分类号： H04B7/02

CPC分类号： H04L25/0224 ,  H04L25/0248

摘要： A base station is provided. The base station includes a transmit path circuitry configured to transmit downlink control information in a downlink control information (DCI) format to a subscriber station, and a receive path circuitry configured to receive multiple-input multiple-output (MIMO) feedback from the subscriber station in response to the downlink control information. The MIMO feedback from the subscriber station is determined by two or more codepoints in the DCI format. One of the two or more codepoints indicates a rank-limited single user multiple-input multiple-output (SU-MIMO) feedback corresponding to a rank up to a maximum rank.

摘要翻译： 提供基站。 基站包括：发送路径电路，被配置为向用户台发送下行链路控制信息（DCI）格式的下行链路控制信息;以及接收路径电路，被配置为从所述用户站接收多输入多输出（MIMO）反馈 响应于下行链路控制信息。 来自用户站的MIMO反馈由DCI格式的两个或多个码点确定。 两个或多个码点中的一个表示对应于最高等级的秩的等级限制单用户多输入多输出（SU-MIMO）反馈。

公开(公告)号：US08731596B2

公开(公告)日：2014-05-20

申请号：US12896481

申请日：2010-10-01

申请人： Myung Hoon Yeon ,  Joon Young Cho ,  Jin Kyu Han ,  Youn Sun Kim ,  Jianzhong Zhang

发明人： Myung Hoon Yeon ,  Joon Young Cho ,  Jin Kyu Han ,  Youn Sun Kim ,  Jianzhong Zhang

IPC分类号： H04B7/00

CPC分类号： H04W52/146 ,  H04W52/346

摘要： An LTE-A system and power control method for controlling cell interference based on codeword-specific transmission power adjustment with a transmission power control offset parameter. The method includes transmitting a parameter KS signaled by a higher layer and codeword-specific power control parameters from a base station to a terminal; calculating gains at the terminal, using the codeword-specific power control parameters and the parameter KS; calculating, at the terminal, codeword-specific transmit powers according to the gains; and transmitting, from the terminal to the base station, at least two codewords at the codeword-specific transmit powers.

摘要翻译： 一种LTE-A系统和功率控制方法，用于基于使用发射功率控制偏移参数的码字特定发射功率调整来控制小区干扰。 该方法包括从基站向终端发送由较高层发送信号的参数KS和特定于码字的功率控制参数; 使用码字特定功率控制参数和参数KS计算终端的增益; 在终端处根据增益计算码字特定的发射功率; 以及从所述终端向所述基站发送所述码字特定发射功率处的至少两个码字。

公开(公告)号：US08699960B2

公开(公告)日：2014-04-15

申请号：US12232376

申请日：2008-09-16

申请人： Zhouyue Pi ,  Jianzhong Zhang ,  Farooq Khan ,  Jiannan Tsai

发明人： Zhouyue Pi ,  Jianzhong Zhang ,  Farooq Khan ,  Jiannan Tsai

IPC分类号： H04B1/00

CPC分类号： H04B7/0632 ,  H04L1/0026 ,  H04L1/0029 ,  H04L5/006 ,  H04W24/10 ,  H04W72/08

摘要： Methods and apparatus for feeding back channel quality indication in a communication system. First, a first channel quality indication index is determined in dependence upon a channel quality estimation of a first transmission channel, and a second channel quality indication index is determined in dependence upon a channel quality estimation of a second transmission channel. A differential channel quality indication index of the second channel quality indication index is determined with reference to the first channel quality indication index in dependence upon a differential compression scheme. Then, the first channel quality indication index and the differential channel quality indication index are reported.

摘要翻译： 在通信系统中反馈信道质量指示的方法和装置。 首先，根据第一传输信道的信道质量估计来确定第一信道质量指示索引，并且根据第二传输信道的信道质量估计来确定第二信道质量指示索引。 参考第一信道质量指示索引来确定第二信道质量指示索引的差分信道质量指示索引，这取决于差分压缩方案。 然后，报告第一信道质量指示索引和差分信道质量指示索引。

公开(公告)号：US08681766B2

公开(公告)日：2014-03-25

申请号：US13215963

申请日：2011-08-23

申请人： Jianzhong Zhang ,  Joonyoung Cho ,  Zhouyue Pi ,  Juho Lee ,  Aris Papasakellariou ,  Farooq Khan

发明人： Jianzhong Zhang ,  Joonyoung Cho ,  Zhouyue Pi ,  Juho Lee ,  Aris Papasakellariou ,  Farooq Khan

IPC分类号： H04W72/04

CPC分类号： H04L5/0048 ,  H04L1/0026 ,  H04L1/0071 ,  H04L1/1607 ,  H04L5/0007 ,  H04L5/0014 ,  H04L5/0037 ,  H04L5/0055 ,  H04L5/0057

摘要： Methods and apparatus for remapping and regrouping transmission resources in a wireless communication system. First, a set of new permutation algorithms based on Galois field operation is proposed. Then the proposed algorithms and the known Pruned Bit Reversal Ordering (PBRO) algorithm are applied to several of various resource mapping schemes, including slot or symbol level Orthogonal Cover (OC)/Cyclic Shift (CS) mapping, cell-specific slot-level and symbol-level CS hopping patterns, and subframe and slot level base sequence hopping patterns.

摘要翻译： 无线通信系统中重传和重组传输资源的方法和装置。 首先提出了一套基于伽罗瓦域操作的新的置换算法。 然后，所提出的算法和已知的修剪比特逆序排序（PBRO）算法被应用于多种资源映射方案，包括时隙或符号级正交覆盖（OC）/循环移位（CS）映射，小区特定时隙级和 符号级CS跳频模式，以及子帧和时隙级基本序列跳频模式。

公开(公告)号：US08620280B2

公开(公告)日：2013-12-31

申请号：US12387097

申请日：2009-04-27

申请人： Lingjia Liu ,  Jianzhong Zhang

发明人： Lingjia Liu ,  Jianzhong Zhang

IPC分类号： H04M3/42

CPC分类号： H04B7/022 ,  H04B7/0632 ,  H04W16/30 ,  H04W72/082

摘要： A system and method for interference mitigation. The system and method includes a number of base stations configured to coordinate with each other to perform a joint transmission to one or more subscriber stations. The base stations allocate a portion of a frequency band for the joint transmission and jointly schedule the joint transmission. Further, the base stations are configured to select a common codebook or separate codebooks to perform the joint transmission. Thereafter, the joint transmission is performed wherein the one or more subscribers stations substantially simultaneously receive the joint transmission from each of the base stations.

摘要翻译： 一种用于干扰减轻的系统和方法。 该系统和方法包括被配置为相互协调以执行向一个或多个用户站的联合传输的多个基站。 基站分配用于联合传输的频带的一部分并联合调度联合传输。 此外，基站被配置为选择公共码本或单独的码本来执行联合发送。 此后，执行联合传输，其中一个或多个订户站基本上同时从每个基站接收联合传输。