公开(公告)号：US20230216627A1

公开(公告)日：2023-07-06

申请号：US17996755

申请日：2020-06-28

申请人： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON ,  QUALCOMM Incorporated

发明人： Runxin Wang ,  Muhammad Sayed Khairy Abdelghaffar ,  Yu Zhang ,  Krishna Kiran Mukkavilli ,  Hwan Joon Kwon

IPC分类号： H04L5/00 ,  H04W24/10

CPC分类号： H04L5/0035 ,  H04L5/0048 ,  H04L5/0091 ,  H04W24/10

摘要： Aspects of the disclosure relate to radio access networks with a capability to dynamically reconfigure a number of transmission-reception points (TRPs) in a single-frequency network (SFN) based on channel measurements. In one example, a mobile device receives a configuration message including a plurality of transmission configuration indicator (TCI) states, and potentially further including an indication identifying one or more of the TCI states as main TCI states. The message may further include an indication that it includes the plurality of TCI states. The UE receives a downlink traffic channel and demodulates the traffic channel based on only a subset of the TCI states (e.g., the main TCI state (s)). The UE further measures one or more channel parameters corresponding to each TCI state of the plurality of TCI states, and transmits a channel state information report based on the channel parameters. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11791878B2

公开(公告)日：2023-10-17

申请号：US16625591

申请日：2018-06-20

申请人： Juan Montojo ,  Alexei Yurievitch Gorokhov ,  Peter Gaal ,  Yu Zhang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Hari Sankar ,  Alexandros Manolakos ,  Qualcomm Incorporated

发明人： Juan Montojo ,  Alexei Yurievitch Gorokhov ,  Peter Gaal ,  Yu Zhang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Hari Sankar ,  Alexandros Manolakos

IPC分类号： H04B7/0413 ,  H04B7/06

CPC分类号： H04B7/0626 ,  H04B7/0413 ,  H04B7/0632 ,  H04B7/0639

摘要： Techniques are discussed herein identify transmission strategies and to communicate those identified transmission strategies in a transparent communication environment. In some examples, a user equipment (UE) may identify a new transmission strategy for a downlink channel different from a current transmission strategy for the down link channel. The UE may transmit a channel state information (CSI) message that includes an indication of the new transmission strategy identified by the UE. In some examples, a base station may identify the new transmission strategy for the downlink channel. The base station may transmit a codebook subset restriction (CSR) indicator that includes an indication of the new transmission strategy identified by the base station. In some examples, the UE may modify its feedback strategy based on the new transmission strategy.

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：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：US20190379437A1

公开(公告)日：2019-12-12

申请号：US16476408

申请日：2018-02-05

申请人： Se Yong PARK ,  Wei ZENG ,  Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Yi HUANG ,  Renqiu WANG ,  Hao XU ,  Yu ZHANG ,  Joseph Binamira SORIAGA ,  Tingfang JI ,  Peter GAAL ,  Qualcomm Incorporated

发明人： Se Yong Park ,  Wei Zeng ,  Alexandros Manolakos ,  Sony Akkarakaran ,  Yi Huang ,  Renqiu Wang ,  Hao Xu ,  Yu Zhang ,  Joseph Binamira Soriago ,  Tingfang Ji ,  Peter Gaal

IPC分类号： H04B7/0456 ,  H04L27/26 ,  H04L5/00

摘要： Methods, systems, and devices for wireless communication are described that support a low peak-to-average power ratio (PAPR) precoded reference signal design for multiple-input, multiple-output (MIMO) transmissions. A user equipment (UE) may identify multiple sets of symbols associated with different reference signal waveforms, where each reference signal waveform may be associated with a low PAPR. In some cases, different single-carrier reference signal waveforms may be mapped to subsets of frequency resources through frequency division multiplexing (FDM) for a transmission on a single antenna. However, the addition of single-carrier waveforms through FDM for a transmission via an antenna may result in an uplink transmission having a high PAPR (e.g., as compared to single-carrier waveforms). The UE may reduce the PAPR of the uplink transmission by multiplexing the reference signal waveforms in the time domain (e.g., using time division multiplexing (TDM)).

公开(公告)号：US20230179380A1

公开(公告)日：2023-06-08

申请号：US17997776

申请日：2020-06-12

申请人： Min Huang ,  Yu Zhang ,  Chao Wei ,  Hao Xu ,  Qiaoyu Li ,  Chenxi Hao ,  Liangming Wu ,  Kangqi Liu ,  Jing Dai ,  Tao Luo ,  Wanshi Chen ,  QUALCOMM Incorporated

发明人： Min Huang ,  Yu Zhang ,  Chao Wei ,  Hao Xu ,  Qiaoyu Li ,  Chenxi Hao ,  Liangming Wu ,  Kangqi Liu ,  Jing Dai ,  Tao Luo ,  Wanshi Chen

IPC分类号： H04L5/00 ,  H04L5/14 ,  H04B7/06 ,  H04B7/0456

CPC分类号： H04L5/0057 ,  H04B7/0486 ,  H04B7/0626 ,  H04L5/14 ,  H04L5/0091

摘要： Aspects of the disclosure relate to a wireless user equipment (UE) configured to receive a downlink in a network configured for full duplex communication. The UE receives from the network an indication of a maximum rank of an uplink from an interfering, aggressor UE. The UE measures interference of a signal from the aggressor UE, and based on the measurement, determines one or more rank values for the aggressor UE, less than or equal to the maximum rank. The UE may further determine one or more channel parameters for downlink transmissions the UE receives, corresponding to the determined rank values. The UE then transmits a channel state information (CSI) report that includes an indication of at least one of the one or more rank values for the aggressor UE. The CSI report may further include the determined channel parameters. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11329849B2

公开(公告)日：2022-05-10

申请号：US16619038

申请日：2018-05-28

申请人： QUALCOMM Incorporated ,  June Namgoong ,  Pavan Kumar Vitthaladevuni ,  Yu Zhang ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Alexandros Manolakos

发明人： June Namgoong ,  Pavan Kumar Vitthaladevuni ,  Yu Zhang ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Alexandros Manolakos

IPC分类号： H04L25/02 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0417 ,  H04B7/06

摘要： Aspects of the present disclosure disclose techniques for the indication of the allocation of the downlink (DL) demodulation reference signal (DM-RS) ports for the data channel in NR communications. In some examples, the channel state information (CSI) reference signal (CSI-RS) may be associated with a corresponding DM-RS for a DL data channel. The transmitting device, in some examples, may further transmit a notification that provides resource allocations (e.g., port allocations) that minimize the redundant information that is required to be transmitted from the base station to the user equipment (UE) when the DM-RS port allocation is the same as the CSI-RS port allocation received by the UE in an earlier time slot.

公开(公告)号：US11044712B2

公开(公告)日：2021-06-22

申请号：US16341836

申请日：2017-11-10

申请人： QUALCOMM Incorporated ,  Jay Kumar Sundararajan ,  Alexandros Manolakos ,  Wanshi Chen ,  Yu Zhang ,  Haitong Sun

发明人： Jay Kumar Sundararajan ,  Alexandros Manolakos ,  Wanshi Chen ,  Yu Zhang ,  Haitong Sun

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

摘要： Certain aspects of the present disclosure provide techniques for indicating a purpose for a reference signal. According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving an indication of a purpose of a reference signal (RS) from a base station (BS) and processing the RS in accordance with the indicated purpose.

公开(公告)号：US20200244419A1

公开(公告)日：2020-07-30

申请号：US16637067

申请日：2017-08-11

申请人： Alexandros MANOLAKOS ,  Chenxi HAO ,  Yu ZHANG ,  Wanshi CHEN ,  Peter GAAL ,  QUALCOMM Incorporated

发明人： Alexandros Manolakos ,  Chenxi Hao ,  Yu Zhang ,  Wanshi Chen ,  Peter Gaal

IPC分类号： H04L5/00 ,  H04W72/04

摘要： Wireless communication that includes transmission, reception, and configuration of a CSIRS with a configurable band-width is discussed. A base station/gNB may determine a number of antenna ports to be used for wireless communication. The base station/gNB may allocate a first plurality of frequency resources for the transmission of the CSIRS based on the determined number of antenna ports, and may transmit the CSIRS over the first plurality of frequency resources. A mobile device may receive the CSIRS over the first plurality of frequency resources and estimate at least one of channel quality and interference associated with the first plurality of frequency resources based on the received CSIRS.

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.