公开(公告)号：US20230126986A1

公开(公告)日：2023-04-27

申请号：US17906246

申请日：2020-04-20

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yi HUANG ,  Pranay Sudeep RUNGTA ,  Chao JIN ,  Yu ZHANG ,  Peter GAAL

IPC: H04W72/1268 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide methods for channel state information (CSI) reports transmitted on a multi-slot physical uplink shared channel (PUSCH). A method that may be performed by a user equipment (UE) includes receiving a grant triggering an aperiodic channel state information (A-CSI) transmission in a slot overlapping a scheduled transmission with slot aggregation of multiple PUSCH slots, determining CSI timing conditions based on a set of signals transmitted on only a subset of the multiple PUSCH slots, and sending A-CSI reports in one or more of the aggregated slots that satisfy the CSI timing conditions.

公开(公告)号：US20230061722A1

公开(公告)日：2023-03-02

申请号：US17758645

申请日：2020-02-07

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHABG ,  Chao WEI ,  Hao XU ,  Wanshi CHEN ,  Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG

IPC: H04B7/06 ,  H04B17/336

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) for multiple transmission reception point (mTRP) scenarios. The techniques may provide for dynamic interference measurement for mTRP CSI. A method that may be performed by a user equipment (UE) includes receiving a CSI reporting configuration configuring the UE with a plurality of CSI reference signal (CSI-RS) resources for channel measurement (CMRs) and a plurality of resources for interference measurement (IMRs). The method includes determining an indicator based on an association between one or more CMRs and one or more IMRs. A codepoint of the indicator is associated with an IMR or a set of IMRs by an order of the IMRs or the set of IMRs in the configuration, and is associated with a CMR, a CMR pair, or a part of the ports of a CMR. The method generally includes performing CSI measurement based on the association.

公开(公告)号：US20230027718A1

公开(公告)日：2023-01-26

申请号：US17758488

申请日：2020-02-14

Applicant: QUALCOMM Incorporated

Inventor： Kiran VENUGOPAL ,  Wooseok NAM ,  Chenxi HAO ,  Tao LUO ,  Sungwoo PARK ,  Fang YUAN ,  Junyi LI

IPC: H04B7/06 ,  H04L5/00

Abstract: One innovative aspect of the subject matter described in this disclosure can be implemented in a method for wireless communication. The method includes determining a configuration of reference signal (RS) resources to be used by a user-equipment (UE) to perform beam measurements, transmitting, to the UE, an indication of the configuration of the RS resources, and receiving, from the UE, a report indicating a plurality of RS resource indicators based on the beam measurements, each of the RS resource indicators being associated with one of the RS resources. In some aspects, the BS selects a subset of the RS resources based on the report from the UE, transmits, to the UE, an indication to provide channel measurement information for the subset of the RS resources, and receives a report including the channel measurement information from the UE. The BS may also perform joint precoding of signals for transmission via the RS resources based on the channel measurement information.

公开(公告)号：US20220338212A1

公开(公告)日：2022-10-20

申请号：US17753996

申请日：2019-10-26

Applicant: Yiqing CAO ,  Chenxi HAO ,  Peter GAAL ,  QUALCOMM Incorporated

Inventor： Yiqing CAO ,  Chenxi HAO ,  Peter GAAL

IPC: H04W72/12 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for uplink scheduling for communication on an uplink from a user equipment (UE) to a base station (BS). The uplink scheduling is based on uplink transmission (UL Tx) switching time and/or uplink data preparation time of the UE. The uplink data preparation time is calculated based on the UL Tx switching time. For example, a UE can report to a BS at least one of an indication of a UL Tx switching time and an uplink data preparation time of the UE. In return, the UE can receive an indication of uplink scheduling from the BS, which the UE can use to communicate with the BS.

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：US20220232589A1

公开(公告)日：2022-07-21

申请号：US17593764

申请日：2020-03-31

Applicant: QUALCOMM Incorporated

Inventor： Wei YANG ,  Alexandros MANOLAKOS ,  Chenxi HAO ,  Yi HUANG ,  Peter GAAL ,  Gabi SARKIS

IPC: H04W72/12 ,  H04W72/14 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a first sounding reference signal (SRS) transmission that occurred most recently in time, relative to a second SRS transmission, prior to transmission of one or more physical uplink shared channel (PUSCH) communications. The one or more PUSCH communications may correspond to a configured grant. The UE may transmit the one or more PUSCH communications using one or more SRS resources associated with the first SRS transmission. Numerous other aspects are provided.

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：US20220039107A1

公开(公告)日：2022-02-03

申请号：US17309580

申请日：2020-01-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04B7/0417 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may perform channel state information (CSI) measurements on one or more reference signal transmissions from a base station; determine, based at least in part on the CSI measurements, a set of non-zero linear combination complex coefficients for weighting and co-phasing for a linear combination of a plurality of frequency domain basis vectors and a plurality of spatial domain basis vectors; and transmit a CSI feedback, wherein a first part of the CSI feedback includes at least an indication of a number of the set of non-zero linear combination complex coefficients with regard to all layers of a communication link between the UE and the base station. Numerous other aspects are provided.

公开(公告)号：US20220029685A1

公开(公告)日：2022-01-27

申请号：US17311773

申请日：2019-12-19

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Liangming WU ,  Chenxi HAO ,  Joseph Binamira SORIAGA ,  Hao XU

IPC: H04B7/06

Abstract: Configurations and feedback schemes for compressed channel state information (CSI) feedback are provided. A User Equipment (UE) determines a constraint on a total number of transfer domain coefficients to be reported for compressed Channel State Information (CSI) feedback by the UE for a plurality of beams identified for the feedback, wherein each transfer domain coefficient is associated with amplitude information and phase information. The UE selects from a transfer domain coefficient compression matrix, based on the constraint, a set of one or more transfer domain coefficients to report for each of the beams. The UE reports information indicating a number of selected transfer domain coefficients in the set of transfer domain coefficients for each beam and a location of each transfer domain coefficient within the transfer domain coefficient compression matrix and reports at least the amplitude and phase information for the selected coefficients.