公开(公告)号：US09755705B2

公开(公告)日：2017-09-05

申请号：US12536366

申请日：2009-08-05

申请人： Jilei Hou ,  John E. Smee ,  Durga Prasad Malladi ,  Navid Hassanpour Ghady ,  Siddhartha Mallik

发明人： Jilei Hou ,  John E. Smee ,  Durga Prasad Malladi ,  Navid Hassanpour Ghady ,  Siddhartha Mallik

IPC分类号： H04W4/00 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06

CPC分类号： H04B7/024 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0639

摘要： Techniques for supporting distributed multiple-input multiple-output (MIMO) transmissions are described. In one design, a user equipment (UE) determines channel estimates for multiple cells and reports the channel estimates. The UE thereafter receives a data transmission sent by the multiple cells to the UE based on the channel estimates. The data transmission may include at least one data stream, and each data stream may be sent by one cell or the multiple cells to the UE. In another design, a UE determines first and second channel estimates for first and second cells, respectively, and reports the channel estimates. The UE then receives a first data transmission sent by the first cell to the UE based on the first channel estimate. The UE also receives a second data transmission sent by the second cell to another UE and steered away from the UE based on the second channel estimate.

公开(公告)号：US20170244462A1

公开(公告)日：2017-08-24

申请号：US15504232

申请日：2014-09-28

申请人： Chao WEI ,  Yu ZHANG ,  Jilei HOU ,  QUALCOMM Incorporated

发明人： Chao Wei ,  Yu Zhang ,  Jilei Hou

IPC分类号： H04B7/06 ,  H04B7/04

CPC分类号： H04B7/0626 ,  H04B7/0469 ,  H04B7/0478

摘要： Methods and corresponding apparatuses for wireless communication are disclosed. The method for wireless communication includes dividing a two-dimensional antenna array to a plurality of sub-arrays, mapping the two-dimensional antenna array into a one-dimensional vertical channel state information reference signal (CSI-RS) port array for receiving elevation CSI feedback and a one-dimensional horizontal CSI-RS port array for receiving azimuth CSI feedback, and transmitting one or more elevation CSI-RS from the one-dimensional vertical CSI-RS port array and one or more azimuth CSI-RS from the one-dimensional horizontal CSI-RS port array. Methods and corresponding apparatuses for CSI feedback mechanism are also disclosed.

公开(公告)号：US20160205579A1

公开(公告)日：2016-07-14

申请号：US14913889

申请日：2014-09-22

申请人： Peng CHENG ,  Neng WANG ,  Chao WEI ,  Jilei HOU ,  QUALCOMM Incorporated

发明人： Peng Cheng ,  Neng Wang ,  Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  Hao Xu ,  Jilei Hou

IPC分类号： H04W24/10 ,  H04W76/04 ,  H04W72/04 ,  H04L29/08 ,  H04L5/14 ,  H04L5/00

CPC分类号： H04W24/10 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0057 ,  H04L5/14 ,  H04L5/1469 ,  H04L29/08018 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

摘要： Methods, systems, and devices are described for providing periodic CSI reports and/or aperiodic CSI reports to provide CSI for both anchor and non-anchor TDD subframes in eIMTA. Periodic CSI reports may be provided based on a reference configuration, and aperiodic CSI reports may be provided based on a time of reception of a CSI request and a reference configuration. A UE may determine to report anchor or non-anchor CSI through explicit or implicit signaling. Aperiodic CSI may be used for transmission of anchor subframe CSI reports and periodic CSI may be used for transmission of non-anchor subframe CSI reports, or aperiodic CSI may be used for transmission of non-anchor subframe CSI reports and periodic CSI may be used for transmission of anchor subframe CSI reports. A determination of the reference subframe for aperiodic CSI estimation may be based on a time of receipt of an aperiodic CSI request.

摘要翻译： 描述了用于提供周期性CSI报告和/或非周期性CSI报告以在eIMTA中为锚和非锚定TDD子帧提供CSI的方法，系统和设备。 可以基于参考配置提供周期性CSI报告，并且可以基于接收到CSI请求和参考配置的时间来提供非周期性CSI报告。 UE可以通过显式或隐式信令来确定报告锚或非锚定CSI。 非周期性CSI可以用于发送锚定子帧CSI报告，并且周期性CSI可以用于非锚定子帧CSI报告的传输，或非周期性CSI可以用于非锚定子帧CSI报告的传输，并且周期性CSI可以用于 主播子帧CSI报告的传输。 用于非周期性CSI估计的参考子帧的确定可以基于接收到非周期性CSI请求的时间。

公开(公告)号：US20160066288A1

公开(公告)日：2016-03-03

申请号：US14781159

申请日：2014-05-09

申请人： Minghai FENG ,  Neng Wang ,  Chao WEI ,  Jilei HOU ,  QUALCOMM INCORPORATED

发明人： Minghai Feng ,  Neng Wang ,  Chao Wei ,  Jilei Hou

IPC分类号： H04W52/54 ,  H04W52/14 ,  H04W52/24 ,  H04L5/14

CPC分类号： H04W52/54 ,  H04L5/1469 ,  H04W52/10 ,  H04W52/143 ,  H04W52/146 ,  H04W52/241 ,  H04W52/243

摘要： Methods, systems, and-devices are described for interference mitigation in a time-division duplex(TDD)wireless communication system. First and second subframe types may be identified for TDD subframes to be transmitted using the system. Different power control parameters associated with each subframe type may be identified based on transmission directions in neighboring cells for the particular subframes. One or more TDD subframes to be transmitted may be identified as a first or second subframe type, and power control may be applied to the transmitted subframes according the power control parameter associated with the subframe type. The identification of subframes and power control parameters to be applied to each type of subframe may be transmitted, for example, to a user equipment(UE). The information may be transmitted to a UE, for example, via radio resource control(RRC)signaling or via a physical layer control channel.

摘要翻译： 在时分双工（TDD）无线通信系统中描述了用于干扰减轻的方法，系统和设备。 可以使用系统来识别要发送的TDD子帧的第一和第二子帧类型。 可以基于特定子帧的相邻小区中的传输方向来识别与每个子帧类型相关联的不同功率控制参数。 要发送的一个或多个TDD子帧可以被识别为第一或第二子帧类型，并且功率控制可以根据与子帧类型相关联的功率控制参数应用于所发送的子帧。 要应用于每种类型的子帧的子帧和功率控制参数的识别可以例如被发送到用户设备（UE）。 信息可以例如经由无线电资源控制（RRC）信令或经由物理层控制信道被发送到UE。

公开(公告)号：US20160044594A1

公开(公告)日：2016-02-11

申请号：US14782300

申请日：2013-04-09

申请人： Minghai FENG ,  Neng WANG ,  Chao WEI ,  Jilei HOU ,  QUALCOMM Incorporated

发明人： Minghai Feng ,  Neng Wang ,  Chao Wei ,  Jilei Hou

IPC分类号： H04W48/20 ,  H04W72/12 ,  H04B7/06 ,  H04W16/10 ,  H04W74/00

CPC分类号： H04W48/20 ,  H04B7/024 ,  H04B7/06 ,  H04B7/0608 ,  H04J11/005 ,  H04W16/10 ,  H04W72/1226 ,  H04W74/002 ,  H04W84/02 ,  H04W84/045 ,  H04W88/02 ,  H04W88/08

摘要： Methods and apparatus are disclosed for interference management. The interference management is based on dynamic point selection or semi-static point selection. The method includes determining interference at a plurality of network nodes. The method includes selecting a transmission point from the plurality of network nodes for a transmission to at least one mobile entity based on the determined interference.

摘要翻译： 公开了用于干扰管理的方法和装置。 干扰管理基于动态点选择或半静态点选择。 该方法包括确定多个网络节点处的干扰。 该方法包括基于所确定的干扰，从多个网络节点中选择到至少一个移动实体的传输的传输点。

公开(公告)号：US20150372695A1

公开(公告)日：2015-12-24

申请号：US14766740

申请日：2013-03-14

申请人： Jian LI ,  Changlong XU ,  Yisheng XUE ,  Jilei HOU ,  Yin HUANG ,  QUALCOMM INCORPORATED

发明人： Jian Li ,  Changlong Xu ,  Yisheng Xue ,  Jilei Hou ,  Yin Huang

IPC分类号： H03M13/11 ,  H04L1/00

CPC分类号： H03M13/1131 ,  H04L1/0045 ,  H04L1/005 ,  H04L1/0057

摘要： A method of error correction using low density parity check (LDPC) codes is disclosed. A communications device receives a codeword and detects one or more bit errors in the received codeword using an LDPC code. The device then generates a corrected codeword based, at least in part, on a set of unsatisfied check nodes of the LDPC code. The device may determine that the one or more bit errors are associated with an absorption set of the LDPC code. The device may also determine a plurality of candidate codewords based on the set of unsatisfied check node and select the corrected codeword from the plurality of candidate codewords. Each of the plurality of candidate codewords may represent a valid codeword associated with the LDPC code.

摘要翻译： 公开了一种使用低密度奇偶校验（LDPC）码的纠错方法。 通信设备接收码字，并使用LDPC码检测接收到的码字中的一个或多个比特错误。 然后，该设备至少部分地基于LDPC码的一组不满足的校验节点来生成校正码字。 设备可以确定一个或多个比特错误与LDPC码的吸收集相关联。 该设备还可以基于该不满足的校验节点集合来确定多个候选码字，并从多个候选码字中选择校正后的码字。 多个候选码字中的每一个可以表示与LDPC码相关联的有效码字。

公开(公告)号：US20150280803A1

公开(公告)日：2015-10-01

申请号：US14433596

申请日：2013-06-18

申请人： Jinghu CHEN ,  Wanlun ZHAO ,  Qiang SHEN ,  Insung KANG ,  Jilei HOU ,  QUALCOMM INCORPORATED

发明人： Jinghu Chen ,  Wanlun Zhao ,  Qiang Shen ,  Insung Kang ,  Jilei Hou

IPC分类号： H04B7/08 ,  H04W52/02 ,  H04L5/00

CPC分类号： H04B7/0877 ,  H04B7/0871 ,  H04L5/0048 ,  H04W52/0232 ,  H04W88/12 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/444

摘要： In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The apparatus switches from a multiple receive diversity (RxD) on state to a RxD off state upon detecting a condition is in a certain state. The condition may be a high measure of correlation between a first antenna and a second antenna, or a high level of imbalance between the first antenna and the second antenna. The apparatus also periodically switches back to the RxD on state to determine if the condition remains in the certain state. The time period between entries into the RxD on state is dynamically adjusted as a function of prior conditions.

摘要翻译： 在本公开的一方面，提供了一种方法，计算机程序产品和装置。 当检测到条件处于一定状态时，该设备从状态的多址接收分集（RxD）切换到RxD关闭状态。 该条件可以是第一天线和第二天线之间的相关性的高度测量，或者第一天线和第二天线之间的高平衡不平衡。 该装置还周期性地切换回RxD导通状态以确定条件是否保持在某一状态。 作为先前条件的函数动态地调整进入RxD打开状态的条目之间的时间段。

公开(公告)号：US09106294B2

公开(公告)日：2015-08-11

申请号：US13346590

申请日：2012-01-09

申请人： Yibo Jiang ,  Sharad Deepak Sambhwani ,  Jilei Hou

发明人： Yibo Jiang ,  Sharad Deepak Sambhwani ,  Jilei Hou

IPC分类号： H04B1/00 ,  H04B7/00 ,  H04B7/06 ,  H04B7/04 ,  H04B7/02

CPC分类号： H04B7/0617 ,  H04B7/0404 ,  H04B7/0634 ,  H04B7/0652

摘要： An apparatus, method, and computer program product operable to determine a phase of a beamforming weight vector utilizing a memory of a previously used phase for the beamforming weight vector, capable of improving a channel estimate. A base station transmits a beamforming weight vector to a user equipment based on a determined channel estimate. The user equipment selects between the received beamforming weight vector, or a modified beamforming weight vector having its phase shifted by −360°, in accordance with a suitable selection criteria. That is, the selection is made such that a difference between the phase of the selected beamforming vector and a phase of a prior beamforming vector is within a predetermined range.

摘要翻译： 一种装置，方法和计算机程序产品，其可操作以使用能够改善信道估计的波束成形权重向量的先前使用的相位的存储器来确定波束成形权重向量的相位。 基站基于确定的信道估计向用户设备发送波束成形权重向量。 用户设备根据合适的选择标准在所接收的波束形成权重向量或其相位偏移-360°的经修改的波束成形权重向量之间进行选择。 也就是说，进行选择使得所选择的波束形成向量的相位与先前的波束形成向量的相位之间的差在预定范围内。

公开(公告)号：US09071344B2

公开(公告)日：2015-06-30

申请号：US11334977

申请日：2006-01-18

申请人： John Edward Smee ,  Jilei Hou ,  Roberto Padovani ,  Peter John Black ,  Kenneth D. Easton

发明人： John Edward Smee ,  Jilei Hou ,  Roberto Padovani ,  Peter John Black ,  Kenneth D. Easton

IPC分类号： H04W36/00 ,  H04B1/7107 ,  H04W52/12

CPC分类号： H04B1/7107 ,  H04W52/12

摘要： A method and system for reverse link interference cancellation. One method comprises demodulating and decoding at least one signal sent from at least one access terminal and received by a first base station, sending demodulated, decoded information of the signal to a second base station, reconstructing the signal at the second base station, and subtracting the reconstructed signal from a buffer at the second base station.

摘要翻译： 一种用于反向链路干扰消除的方法和系统。 一种方法包括对从至少一个接入终端发送并由第一基站接收的至少一个信号进行解调和解码，向第二基站发送解调后的解码的信号信息，重构第二基站的信号，以及减去 来自第二基站的缓冲器的重建信号。

公开(公告)号：US09007926B2

公开(公告)日：2015-04-14

申请号：US12722353

申请日：2010-03-11

申请人： Jilei Hou ,  Danlu Zhang

发明人： Jilei Hou ,  Danlu Zhang

IPC分类号： H04L12/26 ,  H04W52/24 ,  H04W52/12 ,  H04W72/08

CPC分类号： H04W52/241 ,  H04W52/12 ,  H04W72/08

摘要： Systems and methods to configure and schedule asymmetric carriers on an uplink between communication devices are described herein. An access node is provided to reserve a common-channel-free carrier for communication with an access terminal. The access node may reserve the carrier for communication with the access terminal based on path loss data between the access node and the access terminal. Further, an adaptive rise-over-thermal (RoT) target may be employed for communication over any carrier.

摘要翻译： 这里描述了在通信设备之间的上行链路上配置和调度非对称载波的系统和方法。 提供接入节点以保留用于与接入终端进行通信的公共无信道载波。 接入节点可以基于接入节点和接入终端之间的路径损耗数据预留用于与接入终端进行通信的载波。 此外，自适应上升热（RoT）目标可以用于任何载波上的通信。