公开(公告)号：US11116001B2

公开(公告)日：2021-09-07

申请号：US16603736

申请日：2018-05-09

申请人： QUALCOMM Incorporated ,  Chao Wei ,  Kapil Bhattad ,  Alberto Rico Alvarino

发明人： Chao Wei ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Hao Xu

IPC分类号： H04W72/14 ,  H04W4/70

摘要： A method, a user equipment, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive a grant identifying an uplink resource allocation of less than one physical resource block (PRB), wherein the grant identifies a particular PRB in which the uplink resource allocation is included and at least a group of subcarriers allocated for the apparatus; and transmit uplink data using the uplink resource allocation. Numerous other aspects are described.

公开(公告)号：US11595176B2

公开(公告)日：2023-02-28

申请号：US17051190

申请日：2019-05-15

申请人： QUALCOMM INCORPORATED ,  Chao Wei ,  Alberto Rico Alvarino ,  Wanshi Chen ,  Le Liu

发明人： Chao Wei ,  Alberto Rico Alvarino ,  Wanshi Chen ,  Le Liu

IPC分类号： H04L5/00 ,  H04B7/06 ,  H04W72/04 ,  H04W88/02 ,  H04B7/0413

摘要： Methods, systems, and devices for wireless communications are described in which beamforming may be configured at a user equipment (UE) for narrowband communications. The UE may be a narrowband UE that may provide an indication to a base station that the UE is capable of performing beamforming communication for a unicast channel transmission. Such an indication may be provided in response to the UE receiving a non-beamformed broadcast channel transmission from the base station via a first carrier. The base station may receive the indication and configure the UE with a beamformed narrowband communications scheme. Such a beamformed formed narrowband communications scheme may be used for narrowband downlink shared channel communications, narrowband downlink control channel communications, or combinations thereof. In some cases, beamformed communications may be configured on a different carrier than the first carrier. The base station and UE may then communicate using beamformed transmissions.

公开(公告)号：US11490413B2

公开(公告)日：2022-11-01

申请号：US16633399

申请日：2018-09-07

申请人： QUALCOMM Incorporated ,  Yu Zhang ,  Hao Xu ,  Chao Wei ,  Peng Cheng ,  Wanshi Chen ,  Peter Gaal ,  Durga Prasad Malladi

发明人： Yu Zhang ,  Hao Xu ,  Chao Wei ,  Peng Cheng ,  Wanshi Chen ,  Peter Gaal ,  Durga Prasad Malladi

IPC分类号： H04W72/14 ,  H04L5/00 ,  H04W72/04

摘要： Certain aspects of the present disclosure generally relate to wireless communication. More particularly, certain aspects of the present disclosure relate to early termination of a downlink channel repetition transmission, early termination of an uplink channel repetition, and/or determination of a plurality of beams for a repetition transmission. Numerous other aspects are provided.

公开(公告)号：US11258564B2

公开(公告)日：2022-02-22

申请号：US16313806

申请日：2017-05-11

申请人： Chao Wei ,  Wanshi 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：US20200099469A1

公开(公告)日：2020-03-26

申请号：US16467463

申请日：2017-12-07

申请人： Jing JIANG ,  Gabi SARKIS ,  Yang YANG ,  Shrinivas KUDEK ,  Josph Binamira SORIAGA ,  Hari SANKAR ,  Changlong XU ,  Chao WEI ,  Shrinivas KUDEKAR ,  Qualcomm Incorporated

发明人： Jing Jiang ,  Gabi Sarkis ,  Yang Yang ,  Shrinivas Kudekar ,  Joseph Binamira Soriaga ,  Hari Sankar ,  Changgiong Xu ,  Chao Wei

IPC分类号： H04L1/00

摘要： Methods, systems, and devices for encoding and decoding are described. To encode a vector, an encoder allocates information bits of the vector to channel instances of a channel that are separated into groups. The groups may vary in size and allocation of the information bits is based on a base sequence of a given length. During decoding, a decoder assigns different bit types to channels instances by dividing a codeword into a plurality of groups and assigning bit types to channel instances of the plurality of groups using the base sequence.

公开(公告)号：US20200052804A1

公开(公告)日：2020-02-13

申请号：US16491307

申请日：2017-08-11

申请人： Chenxi HAO ,  Yu ZHANG ,  Chao WEI ,  Qualcomm Incorporated

发明人： Chenxi Hao ,  Yu Zhang ,  Chao Wei

IPC分类号： H04B17/364 ,  H04B17/24 ,  H04B17/318 ,  H04L5/00 ,  H04B7/06 ,  H04W72/04

摘要： The described techniques relate to improved methods, systems, devices, or apparatuses that support communication schemes for small cyclic delay diversity (SCDD) reference signals. A base station may transmit a control message comprising at least one channel state information (CSI) configuration parameter to a user equipment (UE). The UE may identify a time offset between a plurality of virtual antennas of the base station based at least in part on the CSI configuration parameter. The UE may perform measurements of a plurality of CSI reference signals (CSI-RSs) transmitted by the base station and associated with the virtual antennas. The UE may transmit a feedback message based at least in part on the determined time offset and the measurements of the CSI-RSs.

公开(公告)号：US20160056907A1

公开(公告)日：2016-02-25

申请号：US14781157

申请日：2014-05-08

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

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

IPC分类号： H04J11/00 ,  H04L5/14 ,  H04J3/16

CPC分类号： H04J11/005 ,  H04J3/1694 ,  H04L5/14 ,  H04W16/10 ,  H04W72/1226

摘要： Methods, systems, and devices are described for interference mitigation between neighboring cells through the use of cell clusters and virtual logical cell clusters. Cells may be added to a cell cluster with a first cell when a level of interference coupling between the first cell and one or more neighboring cells exceeds a first threshold. One or more other cells may be added to a virtual logical cell cluster with the first cell when the level of interference coupling is between a second threshold and the first threshold, the second threshold being less than the first threshold. Interference mitigation between cells of cell clusters and/or virtual logical cell clusters may be performed. Interference mitigation may be accomplished through, for example, coordination of TDD uplink-downlink (UL-DL) configurations for cell clusters and scheduling-dependent interference management (SDIM) for virtual logical cell clusters.

摘要翻译： 描述了通过使用小区集群和虚拟逻辑小区集群来在相邻小区之间进行干扰减轻的方法，系统和装置。 当第一小区和一个或多个相邻小区之间的干扰耦合水平超过第一阈值时，小区可以被添加到具有第一小区的小区簇。 当干扰耦合的水平处于第二阈值和第一阈值之间时，一个或多个其它小区可被添加到具有第一小区的虚拟逻辑小区簇，第二阈值小于第一阈值。 可以执行小区簇和/或虚拟逻辑小区群的小区之间的干扰减轻。 干扰减轻可以通过例如协调用于小区集群的TDD上行链路 - 下行链路（UL-DL）配置和用于虚拟逻辑小区集群的调度相关干扰管理（SDIM）来实现。

公开(公告)号：US20160029358A1

公开(公告)日：2016-01-28

申请号：US14773869

申请日：2013-03-15

申请人： Jilei HOU ,  Neng WANG ,  Chao WEI ,  QUALCOMM INCORPORATED

发明人： Jilei Hou ,  Neng Wang ,  Chao Wei

IPC分类号： H04W72/04 ,  H04W74/08 ,  H04B7/06

CPC分类号： H04W72/046 ,  H04B7/0695 ,  H04W74/0833

摘要： A method for improved random access procedures by a UE is provided. The method comprises: measuring a common CSI-RS; selecting a best horizontal/vertical beam from a set of fixed beams; determining a preamble mapped to the selected horizontal/vertical beam; transmitting the preamble; and receiving a random access response.

摘要翻译： 提供了一种用于UE改进随机接入过程的方法。 该方法包括：测量公共CSI-RS; 从一组固定光束中选择最佳水平/垂直光束; 确定映射到所选择的水平/垂直波束的前导码; 传送序言; 并接收随机接入响应。

公开(公告)号：US20150327324A1

公开(公告)日：2015-11-12

申请号：US14654660

申请日：2014-01-27

申请人： Chao WEI ,  Xipeng ZHU ,  Jilei HOU ,  Neng WANG ,  QUALCOMM INCORPORATED

发明人： Chao Wei ,  Xipeng Zhu ,  Jilei Hou ,  Neng Wang

IPC分类号： H04W76/04 ,  H04W74/00

CPC分类号： H04W74/002 ,  H04W52/02 ,  H04W52/0216 ,  H04W52/0235 ,  H04W76/28 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/24 ,  Y02D70/25

摘要： Methods, systems, and devices are described for discontinuous transmission and/or discontinuous reception in time division duplex (TDD) systems that may have data transmission formats dynamically reconfigured. An initial uplink-downlink (UL-DL) configuration for TDD communication between an eNB and user equipment (UE) may be established. This initial UL-DL configuration may be reconfigured to a different UL-DL configuration for one or more UEs in communication with the eNB. When a UE switches to discontinuous reception (DRX) mode, it may monitor control information from the eNB during DRX on periods, a frequency of the DRX on periods based on a reference UL-DL configuration irrespective of any reconfiguration of UL-DL configuration for a particular UE. In some aspects, a UE that is operating in a UL-DL reconfiguration mode may, upon entering DRX mode, autonomously discontinue operating in the UL-DL re-configuration mode.

摘要翻译： 描述了可能具有动态重新配置的数据传输格式的时分双工（TDD）系统中的不连续传输和/或不连续接收的方法，系统和设备。 可以建立用于eNB和用户设备（UE）之间的TDD通信的初始上行链路 - 下行链路（UL-DL）配置。 对于与eNB通信的一个或多个UE，可将该初始UL-DL配置重新配置为不同的UL-DL配置。 当UE切换到不连续接收（DRX）模式时，它可以在DRX开启周期期间监视来自eNB的控制信息，该DRX周期是基于参考UL-DL配置的DRX开启周期的频率，而不管UL-DL配置的任何重新配置​​如何， 一个特定的UE。 在一些方面中，在进入DRX模式时，以UL-DL重新配置模式工作的UE可以在UL-DL重新配置模式下自主地停止工作。

公开(公告)号：US11483180B2

公开(公告)日：2022-10-25

申请号：US17259207

申请日：2019-07-23

申请人： Qualcomm Incorporated ,  Qiaoyu Li ,  Yu Zhang ,  Chao Wei ,  Chenxi Hao ,  Liangming Wu ,  Hao Xu

发明人： Qiaoyu Li ,  Yu Zhang ,  Chao Wei ,  Chenxi Hao ,  Liangming Wu ,  Hao Xu

IPC分类号： H04L25/02 ,  H04B7/0404 ,  H04B7/0456 ,  H04L5/00 ,  H04W8/24 ,  H04W72/04

摘要： A base station may determine co-phase information and uplink precoding information (e.g., user equipment (UE) precoder information) based on one or more received sounding reference signals (SRSs) from a UE. The UE may adjust precoders or co-phase for different SRS transmissions over the one or more configured SRS resources. As such, the base station may indicate either co-phase information or uplink precoding information via an SRS resource indicator (SRI), and may transmit an explicit indication of the remaining co-phase information or uplink precoding information in addition to the SRI. In other examples (e.g., when only a single SRS resource is configured), the base station may transmit an index corresponding to uplink precoding information, as well as a separate indication of co-phase information. In some cases, a port selection pattern may be included with an explicit indication, indicating a selection of antenna port indices the precoder or co-phase index applies to.