公开(公告)号：US20220369379A1

公开(公告)日：2022-11-17

申请号：US17775009

申请日：2020-12-01

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Wanshi CHEN ,  Umesh PHUYAL ,  Jing LEI ,  Chao WEI ,  Peter Pui Lok ANG ,  Hao XU

IPC: H04W74/08

Abstract: A user equipment (UE) operating as an NR-Light UE may repeat transmissions of uplink signals such as a random access (RA) message (Msg) 3 on a physical uplink shared channel (PUSCH) during a random access channel (RACH) procedure. The UE may receive a random access response (RAR) message including a RAR uplink (UL) grant. The UE may determine, based on a single bit of the RAR message, whether repetition of a RA Msg 3 is indicated. The UE may determine both of a repetition factor and a transmit power control (TPC) command for the RA Msg 3 based on a TPC field of the RAR UL grant. The UE may transmit the RA Msg 3 based on the repetition factor and the TPC command.

公开(公告)号：US20220304014A1

公开(公告)日：2022-09-22

申请号：US17596065

申请日：2019-06-28

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Chenxi HAO ,  Liangming WU ,  Yu ZHANG ,  Yuwei REN ,  Changlong XU ,  Min HUANG ,  Hao XU ,  Wanshi CHEN

IPC: H04W72/12 ,  H04W72/04

Abstract: Aspects are provided which allow a user equipment (UE) to identify a low-bandwidth (low-BW) CORESET-0 and associated CSS based on reception bandwidth of the UE. The base station may configure different frequency and time-domain resources of the low-BW CORESET in order to optimize resource utilization of the low-BW CORESET-0, and the low-tier UE may identify these resources of CORESET-0 and CSS from the system configuration information received in a master information block (MIB). As a result, low tier UEs may operate in a same cell as legacy UEs without the need for the base station to transmit additional signaling to either legacy UEs or lower tier UEs for the UEs to receive their respective CORESET-0's and identify a physical downlink channel (PDCCH).

公开(公告)号：US20220287069A1

公开(公告)日：2022-09-08

申请号：US17632813

申请日：2020-08-10

Applicant: Qualcomm Incorporated

Inventor： Ayan SENGUPTA ,  Alberto RICO ALVARINO ,  Le LIU ,  Chao WEI

IPC: H04W72/12 ,  H04L1/16

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a downlink control information (DCI) message from a base station that schedules multiple transport blocks (TBs) to be transmitted to the UE. Accordingly, the UE may determine a bundling configuration for grouping the multiple TBs into separate groups of TBs such that separate acknowledgment (ACK) feedback messages are transmitted by the UE for each group of TBs to indicate whether each of the TBs in each TB group was correctly received and decoded. In some cases, the UE may determine the bundling configuration based on radio resource control signaling from the base station, DCI signaling from the base station, relationships or equations or tables defined for the UE, or a combination thereof. Additionally, the UE may determine resource locations and timelines for transmitting the separate ACK feedback messages.

公开(公告)号：US20220279563A1

公开(公告)日：2022-09-01

申请号：US17630179

申请日：2020-07-31

Applicant: Qualcomm Incorporated

Inventor： Chao WEI ,  Qiaoyu LI ,  Hao XU

IPC: H04W72/12 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. A bandwidth reduced low-tier user equipment (UE) may receive a signal identifying a control resource set for the UE to monitor for control information scheduling communications between the UE and a base station, the control resource set comprising a plurality of control channel elements organized across more than three symbols and comprising one or more first resource element groups mapped to a first monitoring occasion and one or more second resource element groups mapped to a second monitoring occasion. The UE may receive, during the first monitoring occasion, at least a first portion of the control information on the one or more first resource element groups. The UE may receive, during the second monitoring occasion, at least a second portion of the control information on the one or more second resource element groups. The UE may communicate with the base station in accordance with the control information.

公开(公告)号：US20220248431A1

公开(公告)日：2022-08-04

申请号：US17597909

申请日：2020-08-06

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Yu ZHANG ,  Chao WEI ,  Wanshi CHEN

IPC: H04W72/12 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a sub-band specific sounding reference signal (SRS) resource indicator identifying subsets of SRS resources, of a set of SRS resources, associated with precoding a physical uplink shared channel (PUSCH) communication that is to be transmitted in a PUSCH resource. The user equipment may precode the PUSCH communication based at least in part on the sub-band specific SRS resource indicator. The user equipment may transmit the PUSCH communication after precoding the PUSCH communication based at least in part on the sub-band specific SRS resource indicator. Numerous other aspects are provided.

公开(公告)号：US20220174680A1

公开(公告)日：2022-06-02

申请号：US17593823

申请日：2020-04-21

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Chao WEI ,  Qiaoyu LI ,  Liangming WU

IPC: H04W72/06 ,  H04W72/04 ,  H04W72/08

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency domain (FD) compression. A method that can be performed by a user equipment (UE) includes determining the size of the intermediate set based on one or more parameters included in the CSI report configuration, determining one or more FD bases for each layer based on the intermediate set, wherein the one or more FD bases are characterized by an M value indicative of a number of the one or more FD bases and based on the CSI report configuration, and reporting the one or more FD bases for each layer based on the size of the intermediate set.

公开(公告)号：US20220109480A1

公开(公告)日：2022-04-07

申请号：US17310748

申请日：2020-02-22

Applicant: Chenxi HAO ,  Chao WEI ,  Yu ZHANG ,  Liangming WU ,  QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Chao WEI ,  Yu ZHANG ,  Liangming WU

IPC: H04B7/06 ,  H04B7/0417

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency compression. A method that can be performed by a user equipment (UE) includes receiving a CSI report configuration. The CSI report configuration configures the UE for reporting precoding matrix information including, for each layer, a plurality of selected beams L, a plurality of frequency domain compression bases F for the L beams, and a subset of linear combination coefficients associated with the frequency domain compression bases and beams. The UE can determine a number of coefficients to report for a higher rank based on a configured maximum number of coefficients to report for a lower rank.

公开(公告)号：US20220085855A1

公开(公告)日：2022-03-17

申请号：US17425018

申请日：2020-01-22

Applicant: Min HUANG ,  Chenxi HAO ,  Yu ZHANG ,  Chao WEI ,  Liangming WU ,  Qiaoyu LI ,  QUALCOMM Incorporated

Inventor： Min HUANG ,  Chenxi HAO ,  Yu ZHANG ,  Chao WEI ,  Liangming WU ,  Qiaoyu LI

IPC: H04B7/06 ,  H04B7/0417

Abstract: Certain aspects of the present disclosure provide techniques for precoder matrix quantization for compressed channel state information (CSI) feedback. A method for wireless communications by a user equipment (UE) (120a) includes receiving a CSI report configuration for frequency domain compressed precoder matrix feedback. The CSI report configuration configures the UE (120a) to report, for a plurality of selected beams at a plurality of time domain taps, a frequency domain compression basis vector and a plurality of linear combination coefficients associated with the frequency domain compression (805). For each of the beams, the UE (120a) groups the time domain taps into at least first and second groups. The groups each can have zero, one, or more than one time domain taps (810). The UE (120a) quantizes the corresponding linear combination coefficients and/or frequency domain compression basis vectors based on the grouping (815).

公开(公告)号：US20220070872A1

公开(公告)日：2022-03-03

申请号：US17523745

申请日：2021-11-10

Applicant: QUALCOMM Incorporated

Inventor： Yu ZHANG ,  Wanshi CHEN ,  Chao WEI

IPC: H04W72/04 ,  H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04L25/02 ,  H04W72/14

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for indicating resource element (RE) channel mapping using communications systems operating according to new radio (NR) technologies.

公开(公告)号：US20210410093A1

公开(公告)日：2021-12-30

申请号：US17285205

申请日：2019-11-20

Applicant: QUALCOMM Incorporated

Inventor： Yuwei REN ,  Chao WEI ,  Wanshi CHEN ,  Huilin XU ,  Yiqing CAO

IPC: H04W56/00 ,  H04W24/10 ,  H04L5/00 ,  H04B17/336 ,  H04L27/26

Abstract: Aspects described herein relate to determining a first timing advance for transmitting communications to a base station, and determining a second timing advance for transmitting a reference signal to a user equipment. The communications can be transmitted to the base station based on the first timing advance, and the reference signal can be transmitted to the user equipment based on the second timing advance.