公开(公告)号：US20220417999A1

公开(公告)日：2022-12-29

申请号：US17775481

申请日：2019-12-10

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Jing LEI ,  Wanshi CHEN ,  Hao XU ,  Yu ZHANG ,  Peter Pui Lok ANG ,  Krishna Kiran MUKKAVILLI

IPC: H04W74/08

Abstract: In an aspect, a UE and BS perform a RACH procedure whereby a preamble sequence group for a preamble is associated with a downlink receive capability of the UE. In another aspect, a UE and BS perform a RACH procedure whereby a preamble sequence group is associated with a group-specific RA-RNTI that is used to scramble an associated DCI communication. In another aspect, UEs performing a RACH procedure with a BS via different sets of ROs may monitor the same GC-DCI scrambled with a common RA-RNTI. In another aspect, a UE and BS perform a 2-Step RACH procedure whereby a Msg-A payload includes information indicative of a downlink receive capability level associated with the UE.

公开(公告)号：US20220417773A1

公开(公告)日：2022-12-29

申请号：US17756156

申请日：2020-10-20

Applicant: QUALCOMM Incorporated

Inventor： Ruiming ZHENG ,  Yan ZHOU ,  Yu ZHANG ,  Linhai HE ,  Tao LUO

IPC: H04W24/08 ,  H04L5/00 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a medium access control layer message indicating a set of mappings between a set of pathloss reference signals and one of: a set of physical uplink shared channel identifiers, or a set of sounding reference signal identifiers; receive downlink control information activating a mapping of the set of mappings; and perform a pathloss measurement using a pathloss reference signal identified by the activated mapping. Numerous other aspects are provided.

公开(公告)号：US20220353032A1

公开(公告)日：2022-11-03

申请号：US17633508

申请日：2020-08-21

Applicant: Qualcomm Incorporated

Inventor： Muhammad Sayed Khairy Abdelghaffar ,  Yu ZHANG ,  Wooseok NAM ,  Peter Pui Lok ANG ,  Wanshi CHEN

IPC: H04L5/00 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may inform a base station of multiple transmission-antenna switching capabilities supported by the UE. The supported transmission-antenna switching capabilities may include a first transmission-antenna switching capability and a second transmission-antenna switching capability. The UE may receive a message that triggers the UE to switch from using a first configuration associated with the first transmission-antenna switching capability to using a second configuration associated with the second transmission-antenna switching capability. The UE may perform a sounding procedure using the second configuration associated with the second transmission-antenna switching capability based on receiving the message.

公开(公告)号：US20220330218A1

公开(公告)日：2022-10-13

申请号：US17716306

申请日：2022-04-08

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Kexin XIAO ,  Yu ZHANG

IPC: H04W72/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a configuration that may identify a set of time and frequency resources for transmission of sounding reference signals, the set of time and frequency resources including a plurality of subsets of time and frequency resources. Each subset of time and frequency resources of the plurality of subsets of time and frequency resources may be associated with a corresponding value of a plurality of values of a partial frequency parameter. The UE may receive control signaling indicating a value of the partial frequency parameter of the plurality of values. The UE may transmit a sounding reference signal on a subset of time and frequency resources of the plurality of subsets of time and frequency resources that corresponds to the value of the partial frequency parameter indicated by the received control signaling.

公开(公告)号：US20220278806A1

公开(公告)日：2022-09-01

申请号：US17753199

申请日：2020-08-27

Applicant: QUALCOMM Incorporated

Inventor： Yu ZHANG ,  Chenxi HAO ,  Alexei Yurievitch GOROKHOV ,  Peter GAAL ,  Alexandros MANOLAKOS ,  Wanshi CHEN

IPC: H04L5/00 ,  H04B7/06 ,  H04W72/04

Abstract: Some aspects of the present disclosure provide channel state information (CSI) processing criteria. A method that may be performed by a user equipment (UE) generally includes receiving, from a base station via a first bandwidth part (BWP), control signaling that triggers reporting at least one of a first channel state information (CSI) report associated with the first BWP or a second CSI report associated with a second BWP that is non-active, determining, based on an indication of an active downlink (DL) BWP change, at least one occupation time of one or more CSI processing units (CPUs) associated with the first CSI report or the second CSI report, and taking one or more actions based at least in part on the at least one occupation time.

公开(公告)号：US20220263552A1

公开(公告)日：2022-08-18

申请号：US17596541

申请日：2020-06-19

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) reporting with frequency domain (FD) compression. More particularly, aspects of the present disclosure provide for codebook subset restriction (CBSR) on per spatial domain (SD) basis amplitude.

公开(公告)号：US20220247467A1

公开(公告)日：2022-08-04

申请号：US17595106

申请日：2020-05-18

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04W24/02 ,  H04W72/04 ,  H04W24/10 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for a user equipment (UE) to determine channel state information (CSI) to feedback to a base station (BS) in a full-duplex wireless communications system while considering UE-to-UE interference and for the BS to configure the UE to provide the CSI to the BS. In an exemplary method, a UE receives, from a base station (BS) in a full-duplex communications system, a channel state information (CSI) report configuration including at least a first indicator of a first associated set of sounding reference signal (SRS) resources; and transmits to the BS a CSI report including CSI and zero or more second indicators of sets of measured SRS resources.

公开(公告)号：US20220109481A1

公开(公告)日：2022-04-07

申请号：US17429488

申请日：2020-02-15

Applicant: Qualcomm Incorporated

Inventor： Bo CHEN ,  Yuwei REN ,  Liangming WU ,  Yu ZHANG ,  Ruifeng MA ,  Chenxi HAO ,  Renqiu WANG ,  Hao XU

IPC: H04B7/06 ,  H04B7/0456 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform channel state information (CSI) measurements on one or more reference signal transmissions received from a base station. Based on the CSI measurements, the UE may generate a CSI report, and the UE may transmit the CSI report to the base station. In some cases, the generated CSI report may include a first portion and a second portion. The first portion may indicate whether the second portion of the CSI report includes full-band CSI feedback or partial-band CSI feedback. The second portion may provide the CSI feedback for one or more identified sub-bands. In some cases, the second portion may include a sub-band index indicating the identified sub-bands. Additionally or alternatively, the second portion may include a bitmap indicating a correspondence between multiple CSI feedback values and multiple corresponding sub-band indexes.

公开(公告)号：US20220014249A1

公开(公告)日：2022-01-13

申请号：US17424819

申请日：2020-01-23

Applicant: Chenxi HAO ,  Yu ZHANG ,  QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG

IPC: H04B7/06 ,  H04B7/0417

Abstract: Certain aspects of the present disclosure provide techniques for channel quality indictor (CQI) reporting with precoding matrix indicator (PMI) frequency domain (FD) units. A user equipment (UE) may configured with a CSI reporting configuration. CQI and PMI may be configured with different FD unit sizes. The UE may determine which PMI FD units to use for calculating corresponding CQI FD units. PMI and CQI FD units may not be aligned. The UE may determine which PMI FD units to use for calculating CQI based on the alignment. PMI and CQI FD units may be configured using a separate bitmaps, a bitmap and ratio of the FD unit sizes, or a single bitmap. PMI and/or CQI FD units may start from a lowest FD unit index in the system bandwidth, or the lowest FD unit index within a configured bandwidth part (BWP).

公开(公告)号：US20210391910A1

公开(公告)日：2021-12-16

申请号：US17288496

申请日：2019-10-30

Applicant: Liangming WU ,  Chenxi HAO ,  Qiaoyu LI ,  Chao WEI ,  Wanshi CHEN ,  Joseph Binamira SORIAGA ,  Yu ZHANG ,  QUALCOMM Incorporated

Inventor： Liangming WU ,  Chenxi HAO ,  Qiaoyu LI ,  Chao WEI ,  Wanshi CHEN ,  Joseph Binamira SORIAGA ,  Yu ZHANG

IPC: H04B7/06 ,  H04B7/0408

Abstract: Certain aspects of the present disclosure provide techniques for reporting channel state information (CSI) with spatial and time domain compression.