公开(公告)号：US20200178240A1

公开(公告)日：2020-06-04

申请号：US16615534

申请日：2018-06-15

申请人： Yu ZHANG ,  Chao WEI ,  Liangming WU ,  Wanshi CHEN ,  QUALCOMM Incorporated

发明人： Yu Zhang ,  Chao Wei ,  Liangming Wu ,  Wanshi Chen

IPC分类号： H04W72/04 ,  H04L5/00

摘要： Reporting aperiodic channel state information (A-CSI) via a physical uplink control channel (PUCCH) is disclosed. A UE receives a configuration to report aperiodic channel state information (A-CSI) using physical uplink control channel (PUCCH). The UE can report lightweight A-CSI via short/long PUCCH or may report heavy A-CSI via short/long PUCCH. The UE receives a trigger signal for PUCCH-based A-CSI reporting either by a dedicated downlink grant or by a group common DCI. When triggered via a DCI-based trigger, the PUCCH resource can be either a resource used for HARQ-ACK feedback, e.g., short PUCCH; or a semi-static configured PUCCH resource, e.g., either short PUCCH or long PUCCH. When triggered via a group common DCI-based trigger, the PUCCH resource can be either semi-statically configured, or dynamically indicated.

公开(公告)号：US20200169364A1

公开(公告)日：2020-05-28

申请号：US16608328

申请日：2018-06-08

申请人： Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Chao WEI ,  Wanshi CHEN ,  Qualcomm Incorporated

发明人： Chenxi Hao ,  Yu Zhang ,  Liangming Wu ,  Chao Wei ,  Wanshi Chen

IPC分类号： H04L5/00 ,  H04B7/06 ,  H04W72/14 ,  H04W24/10 ,  H04W72/04 ,  H04L5/14

摘要： Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for communicating an uplink grant and a channel state information reference signal (CSI-RS) trigger. A wireless device may identify e a pending collision for a slot of a carrier between a CSI-RS and uplink data. The wireless device may determine a communication configuration for the CSI-RS and the uplink data such that no collision occurs. The determined communication configuration for the CSI-RS may include delaying one of the colliding signals, transmitting only one of the colliding signals and suppressing the other, or reconfiguring the slot such that both signals can be transmitted successfully. Additionally, the UE and the base station may determine a CSI reporting configuration based on the determined communication configuration.

公开(公告)号：US20200092070A1

公开(公告)日：2020-03-19

申请号：US16615562

申请日：2018-06-12

申请人： Liangming WU ,  Wanshi CHEN ,  Yu ZHANG ,  Chao WEI ,  Chenxi HAO ,  QUALCOMM Incorporated

发明人： Liangming Wu ,  Wanshi Chen ,  Yu Zhang ,  Chao Wei ,  Chenxi Hao

IPC分类号： H04L5/00

摘要： A signaling design for multiple aperiodic channel state information (M-A-CSI) feedback is disclosed. In new radio (NR) networks, there may be scenarios where M-A-CSI are triggered and reported simultaneously. Timing issues may arise because of the different delay periods for difference CSI processes and reporting. In a first aspect, a general set of delay times for the M-A-CSI maybe signaled to the user equipment (UE) from which a candidate set is selected by the UE based on various CSI related settings. An indication from the base station may then be used to select the delay from the candidate set. In a second aspect, a delay period may be selected from the set of delays associated with and corresponding to the M-A-CSI.

公开(公告)号：US10555242B2

公开(公告)日：2020-02-04

申请号：US12996033

申请日：2008-06-06

申请人： Hai Jiang ,  Jian Feng Kang ,  Xiao Yi Wang ,  Chao Wei ,  Yi Wu ,  Dong Mei Zhang

发明人： Hai Jiang ,  Jian Feng Kang ,  Xiao Yi Wang ,  Chao Wei ,  Yi Wu ,  Dong Mei Zhang

IPC分类号： H04W4/06 ,  H04W48/10 ,  H04W48/20 ,  H04W16/32 ,  H04W72/00

摘要： The present invention relates to methods and apparatuses for providing selective network access, wherein a cell type indication is provided based on at least one of a preamble and a header portion of a broadcast signal. At the receiving end, it is checked based on at least one of the preamble and the header portion, whether broadcast signals are received from different first and second cell types. The first cell type is selected for network access, if both broadcast signals from the first and second cell types are received with sufficient strength.

公开(公告)号：US20200007293A1

公开(公告)日：2020-01-02

申请号：US16313806

申请日：2017-05-11

申请人： Chao WEI ,  Wansh CHEN ,  Peter GAAL ,  QUALCOMM Incorporated

发明人： Chao Wei ,  Wanshi CHEN ,  Peter GAAL

IPC分类号： H04L5/00

摘要： Signaling design for interlaced frequency divisional multiplex (IFDM) demodulation reference signals (DMRS) is discussed in which a dynamic indication is provided to a user equipment (UE) from a serving base station that allows the UE to configure transmission of DMRS according to either a single carrier frequency divisional multiplex (SC-FDM) or IFDM configurations, as indicated by the dynamic indication. The IFDM configuration may be applicable to either regular uplink subframes or within the uplink portion of special subframes. In some aspects, power boosting may be provided for the DMRS in order to equalize transmit power between decimated DMRS transmitted with the data tones. Additional aspects may also provide for different offsets to be used depending on the type of uplink control signal transmitted.

公开(公告)号：US10045339B2

公开(公告)日：2018-08-07

申请号：US14910567

申请日：2014-07-17

申请人： QUALCOMM INCORPORATED ,  Chao Wei ,  Wanshi Chen ,  Xiaoxia Zhang ,  Neng Wang ,  Hao Xu ,  Peter Gaal

发明人： Chao Wei ,  Wanshi Chen ,  Xiaoxia Zhang ,  Neng Wang ,  Hao Xu ,  Peter Gaal

IPC分类号： H04W72/04 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00 ,  H04W52/04

CPC分类号： H04W72/0446 ,  H04L1/0073 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/0055 ,  H04W52/04 ,  H04W72/04 ,  H04W72/0406

摘要： Aspects of the present disclosure relate to techniques that may help enable the determination of uplink resource allocation in systems that support dynamic uplink-downlink subframe configurations. An example method generally includes receiving signaling indicating a dynamic uplink-downlink (UL-DL) subframe configuration, determining hybrid automatic repeat request (HARQ) acknowledgment/negative acknowledgment (ACK/NACK) timing based on a reference UL-DL subframe configuration, and determining HARQ resource allocation based on the dynamic UL-DL subframe configuration.

公开(公告)号：US20180083676A1

公开(公告)日：2018-03-22

申请号：US15563357

申请日：2015-06-03

申请人： Chao WEI ,  Yu ZHANG ,  Wanshi CHEN ,  Peter GAAL ,  QUALCOMM Incorporated

发明人： Chao Wei ,  Yu ZHANG ,  Wanshi CHEN ,  Peter GAAL

IPC分类号： H04B7/04 ,  H04B7/0452

CPC分类号： H04B7/0478 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0031

摘要： Enhanced channel state information (CSI) procedures for full dimension-multiple input, multiple output (FD-MIMO) is discussed in which a number of CSI reference signal (CSI-RS) ports configured for a user equipment (UE) is determined. In response to the CSI-RS ports including both horizontal and vertical ports, the UE may determine a first precoding matrix from a plurality of precoding matrices constructed by a Kronecker product of a horizontal precoding matrix and a vertical precoding matrix. The UE selects a predetermined number of precoding vectors out of the first precoding matrix and generates a wideband precoding matrix, based on the selected predetermined number of precoding vectors. The UE reports one or more CSI reports, wherein the CSI reports includes at least one precoding matrix indicator (PMI) for the first precoding matrix and at least an indication of the selection of the predetermined number of precoding vectors.

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。