公开(公告)号：US20230224134A1

公开(公告)日：2023-07-13

申请号：US17802409

申请日：2020-04-29

Applicant: QUALCOMM INCORPORATED

Inventor： Qiaoyu Li ,  Chao WEI ,  Jing LEI ,  Hao XU ,  Chenxi HAO ,  Jing DAI ,  Peter Pui Lok ANG ,  Hwan Joon KWON ,  Wanshi CHEN

IPC: H04L5/00

CPC classification number: H04L5/0057 ,  H04L5/0048

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may perform one or more operations for receive antenna switching. For example, a UE may receive a set of reference signals from a base station using one or more ports of the UE. Based on receiving the set of reference signals, the UE may generate channel state information (CSI) associated with a set of antenna ports. In some cases, the UE may generate CSI based on receiving a configuration indicating the set of antenna ports. The UE may transmit, to the base station, a CSI report including the CSI information associated with the set of antenna ports and an indication of the associated antenna ports. The base station may receive the CSI report and may communicate with the UE using a set of precoders associated with the set of indicated antennas ports.

公开(公告)号：US20230216636A1

公开(公告)日：2023-07-06

申请号：US17998251

申请日：2020-06-17

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Yu ZHANG ,  Liangming WU ,  Chenxi HAO ,  Hao XU ,  Min HUANG ,  Chao WEI ,  Wei XI

IPC: H04L5/00 ,  H04L25/02

CPC classification number: H04L5/0051 ,  H04L25/0224

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, which may be a user equipment (UE), may receive a message including an indication of a set of demodulation reference signal (DMRS) candidates for a data channel. The data channel may be a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH) in some examples. The UE may determine a set of parameters associated with the set of DMRS candidates based on the received message. The set of parameters may correspond to a radio frequency spectrum subband or a radio frequency spectrum band associated with the data channel. The UE may estimate one or more characteristics of the data channel using the set of parameters associated with the set of DMRS candidates to perform wireless communication (e.g., PDSCH reception, PUSCH transmission).

公开(公告)号：US20230171062A1

公开(公告)日：2023-06-01

申请号：US17905630

申请日：2020-03-03

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Chenxi HAO ,  Yu Zhang ,  Xiaoxia Zhang ,  Hao Xu

IPC: H04L5/00 ,  H04B7/06

CPC classification number: H04L5/0051 ,  H04B7/0695 ,  H04L5/0085 ,  H04L5/0094 ,  H04B7/0626 ,  H04L5/0057

Abstract: Channel state information-reference signal (CSI-RS) resources are disclosed with multiple transmission configuration indication (TCI) states. Example aspects of the present disclosure provide for indications that a given CSI-RS resource is associated with multiple TCI states within various configuration control signaling, depending on whether the CSI-RS is periodic, semi-persistent, or aperiodic. Additionally, where any trigger state corresponds to a CSI-RS resource set in which one or more CSI-RS resources are associated with multiple TCI states, one or more quasi-co-location (QCL) assumptions of the downlink transmission may also be applied by a user equipment (UE) to reception of the CSI-RS resources, where the scheduling offset is less than the threshold beam switch timing reported by the UE.

公开(公告)号：US20230133217A1

公开(公告)日：2023-05-04

申请号：US17906399

申请日：2020-04-21

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Hung Dinh LY ,  Chenxi HAO ,  Wanshi CHEN ,  Hao XU ,  Jing DAI ,  Hwan Joon KWON

IPC: H04W72/232 ,  H04W72/04 ,  H04W72/1268

Abstract: A user equipment (UE) may receive a configuration of at least one of scheduling request (SR) resources or physical uplink control channel (PUCCH) resources, wherein the configuration indicates at least one of: a first SR resource having a first format and a first repetition-factor and a second SR resource having the first format and a second repetition-factor; or a first PUCCH resource having a second format and a third repetition-factor and a second PUCCH resource having the second format and a fourth repetition-factor; and may transmit at least one of: a first SR via the first SR resource according to the first repetition-factor; a second SR via the second SR resource according to the second repetition-factor; a first PUCCH via the first PUCCH resource according to the third repetition-factor; or a second PUCCH via the second PUCCH resource according to the fourth repetition-factor.

公开(公告)号：US20230120578A1

公开(公告)日：2023-04-20

申请号：US17759945

申请日：2020-03-02

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Chenxi HAO ,  Yu ZHANG ,  Xiaoxia ZHANG ,  Hao XU

IPC: H04B7/06 ,  H04W72/1268 ,  H04W72/566

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a channel state information (CSI) report configuration that includes configuration information associated with multiple CSI reports. The UE may generate a CSI report message in which the multiple CSI reports are separately encoded and ordered based at least in part on one or more rules. In some aspects, the CSI report message may be generated for transmission on one or more of a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). Numerous other aspects are provided.

公开(公告)号：US20230071931A1

公开(公告)日：2023-03-09

申请号：US17794239

申请日：2021-02-12

Applicant: QUALCOMM Incorporated

Inventor： Min HUANG ,  Chenxi HAO ,  Liangming WU ,  Qiaoyu LI ,  Yu ZHANG ,  Chao WEI ,  Kangqi LIU ,  Jing DAI ,  Hao XU ,  Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG

IPC: H04B7/06 ,  H04L5/00

Abstract: Apparatus, methods, and computer-readable media for facilitating CSI feedback in multiple-TRP communication are disclosed herein. An example method of wireless communication by a UE includes receiving, from a base station, a report configuration message triggering a channel state feedback procedure, the UE and the base station operating in a multiple transmission and reception point (multiple-TRP) communication mode, the report configuration message requesting a multiple-TRP transmission value including at least one of a quantity of layer indicator (LI) values and a strongest TRP indicator (STI) value. The example method also includes generating channel state information (CSI) information based on the receiving of the report configuration message, the CSI information including the multiple-TRP transmission value. The example method also includes transmitting, to the base station, a report including the generated CSI information.

公开(公告)号：US20230056106A1

公开(公告)日：2023-02-23

申请号：US17759258

申请日：2020-02-03

Applicant: Yu ZHANG ,  Chenxi HAO ,  Chao WEI ,  Liangming WU ,  Qiaoyu LI ,  Hao XU ,  Parisa CHERAGHI ,  Lei XIAO ,  Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Chao WEI ,  Liangming WU ,  Qiaoyu LI ,  Hao Xu ,  Parisa CHERAGHI ,  Lei XIAO ,  Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG

IPC: H04L5/00 ,  H04W24/08

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) processing occupation determination that can be used even in multiple transmission reception point (mTRP) scenarios. A method that may be performed by a user equipment (UE) includes receiving a channel state information (CSI) reporting configuration configuring the UE with a plurality of CSI reference signal (CSI-RS) resources for channel measurement (CMRs). The method includes determining a number of occupied CSI processing units, a number of occupied active CSI resources, and/or a number of occupied active CSI-RS ports based on an actual number of CSI measurements. The method includes performing CSI measurement based on the determination.

公开(公告)号：US20230054935A1

公开(公告)日：2023-02-23

申请号：US17758664

申请日：2020-01-31

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Chenxi HAO ,  Xiaoxia ZHANG ,  Yu ZHANG ,  Hao XU ,  Tao LUO

IPC: H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a plurality of resource sets, wherein a resource set, of the plurality of resource sets, includes one or more type-0 resources and one or more type-1 resources, wherein the one or more type-0 resources are configured with a single transmission configuration indicator (TCI) state and the one or more type-1 resources are configured with at least two TCI states; identify a plurality of hypotheses; identify a set of hypothesis groups, wherein the plurality of hypotheses are divided into the set of hypothesis groups; and report, to one or more transmit receive points (TRPs) and for the set of hypothesis groups, a set of channel state information (CSIs) corresponding to the set of hypothesis groups. Numerous other aspects are provided.

公开(公告)号：US20230007683A1

公开(公告)日：2023-01-05

申请号：US17756006

申请日：2019-11-14

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Wanshi CHEN ,  Huilin XU ,  Jing LEI ,  Peter Pui Lok ANG ,  Min HUANG ,  Yu ZHANG ,  Chenxi HAO ,  Hao XU

IPC: H04W74/00 ,  H04W74/08 ,  H04W76/14 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a primary user equipment (UE) may transmit, on a sidelink, information indicating a set of sidelink random access configurations corresponding to a set of uplink random access configurations; receive, on the sidelink and from a secondary UE, a random access signal based at least in part on a selected sidelink random access configuration of the set of sidelink random access configurations, wherein the selected sidelink random access configuration corresponds to a selected uplink random access configuration of the set of uplink random access configurations; and selectively performing a random access procedure in accordance with the selected uplink random access configuration. Numerous other aspects are provided.

公开(公告)号：US20220386376A1

公开(公告)日：2022-12-01

申请号：US17773921

申请日：2019-11-15

Applicant: Qualcomm Incorporated

Inventor： Chao WEI ,  Jing LEI ,  Chenxi HAO ,  Peter Pui Lok ANG ,  Huilin XU ,  Wanshi CHEN ,  Krishna Kiran MUKKAVILLI ,  Le LIU ,  Hung Dinh LY

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently reporting channel state information (CSI) with limited overhead. In one aspect, if a user equipment (UE) is configured to transmit data and CSI to a base station periodically, the UE may transmit the CSI when the UE has data to transmit to the base station. In particular, the UE may transmit data and a CSI report during a transmission opportunity if the UE has data to transmit in the transmission opportunity. Otherwise, the UE may suppress transmission of the CSI report. In another aspect, a UE may be configured to transmit CSI to abase station when downlink channel conditions change. In particular, the UE may request to report CSI to the base station when channel conditions change, and the base station may trigger the UE to report the CSI after receiving the request.