公开(公告)号：US20230247465A1

公开(公告)日：2023-08-03

申请号：US18017003

申请日：2020-09-18

Applicant: QUALCOMM Incorporated

Inventor： Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Wanshi CHEN ,  Huilin XU ,  Ahmed Attia ABOTABL ,  Yu ZHANG ,  Hwan Joon KWON ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI

IPC: H04W24/10 ,  H04W24/08 ,  H04L5/00 ,  H04W72/11

CPC classification number: H04W24/10 ,  H04W24/08 ,  H04L5/0051 ,  H04W72/11

Abstract: A victim user equipment (UE) may experience cross-link interference (CLI) from a physical uplink shared channel (PUSCH) transmission from an aggressor UE or self-interference (SI) from a PUSCH transmission from a transmitter of the victim UE. The present disclosure provides for configuration of measurement resources and a CLI report for mitigation of CLI. A base station may transmit a configuration of the measurement resources including channel state information interference measurement (CSI-IM) resources and a configuration of a CLI report. The CSI-IM resources match PUSCH symbols or demodulation reference signal (DMRS) symbols of an aggressor UE. The victim UE measures a CLI or a SI on the CSI-IM resources. The victim UE reports the CLI or the SI to the base station according to the configuration of the CLI report. The base station may schedule transmissions to mitigate the CLI or the SI.

公开(公告)号：US20230246792A1

公开(公告)日：2023-08-03

申请号：US18002845

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS ,  Yu ZHANG ,  Pinar SEN

IPC: H04L5/00

CPC classification number: H04L5/0094 ,  H04L5/0051 ,  H04L5/0012

Abstract: In some scenarios, SRS transmission over the full SRS bandwidth may be unnecessary and/or inefficient. Therefore, a need exists for approaches to SRS transmission over less than the full SRS bandwidth. Described herein are techniques and solutions of SRS transmission using only a portion of the full SRS bandwidth, or a partial SRS bandwidth. The present disclosure provides for SRS transmission using a partial SRS bandwidth through sounding patterns that use only the partial SRS bandwidth and/or using a partial SRS bandwidth through various SRS sequence generation configured for the partial SRS bandwidth. An apparatus receives an SRS configuration indicating a full SRS bandwidth; determines a frequency hopping pattern for SRS transmission based on the SRS configuration, and the frequency hopping pattern is limited to a partial SRS bandwidth less than the full SRS bandwidth; and transmits the SRS transmission to the base station based on the frequency hopping pattern.

公开(公告)号：US20230171786A1

公开(公告)日：2023-06-01

申请号：US18002141

申请日：2020-06-17

Applicant: QUALCOMM Incorporated

Inventor： Fang YUAN ,  Yu ZHANG ,  Chao WEI ,  Hao XU ,  Tao LUO

IPC: H04W72/23 ,  H04W72/12

CPC classification number: H04W72/23 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive first downlink control information (DCI) and second DCI that together schedule a communication of the UE, where the second DCI is received using a default beam or according to a minimum scheduling offset. The UE may transmit or receive the communication based at least in part on the first DCI and the second DCI. Numerous other aspects are provided.

公开(公告)号：US20230163911A1

公开(公告)日：2023-05-25

申请号：US17754719

申请日：2020-10-10

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04B7/06

CPC classification number: H04L5/0051 ,  H04B7/0639 ,  H04B7/0626

Abstract: Certain aspects of the present disclosure provide techniques for port selection for channel state feedback with analog feedforward. A method that may be performed by a user equipment (UE) includes selecting one or more channel state information reference signals (CSI-RS) ports, of a plurality of CSI-RS ports, for the UE to report CSI. The port selection includes selecting any of the plurality of CSI-RS ports for selecting CSI-RS based on a grouping of the plurality of CSI-RS ports. The UE determines a precoding matrix indicator (PMI) formed by a linear combination of the one or more selected CSI-RS ports. The UE computes at least wideband linear combination coefficients for the selected CSI-RS ports. The UE provides the selected one or more CSI-RS ports and the computed wideband linear combination coefficients to a base station (BS) in a CSI report.

公开(公告)号：US20230147986A1

公开(公告)日：2023-05-11

申请号：US18148694

申请日：2022-12-30

Applicant: QUALCOMM Incorporated

Inventor： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG

IPC: H04W72/02 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W72/02 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, configuration information regarding one or more available slots associated with transmitting sounding reference signal (SRS) information. The UE may receive, from the base station, dynamic downlink communication including slot information for determining a select available slot from among the one or more available slots. The UE may transmit, to the base station, the SRS information during the select available slot, determined based at least in part on the slot information and the configuration information. Numerous other aspects are described.

公开(公告)号：US20230087394A1

公开(公告)日：2023-03-23

申请号：US17759578

申请日：2020-03-06

Applicant: QUALCOMM Incorporated

Inventor： Fang YUAN ,  Yu ZHANG ,  Yan ZHOU ,  Chao WEI ,  Tao LUO ,  Hao XU

IPC: H04W72/12 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit, and a user equipment (UE) may receive, downlink control information (DCI) scheduling an uplink multiple input multiple output (MIMO) communication. The UE may transmit, and the base station may receive, the uplink MIMO communication using a default sounding reference signal (SRS) resource configuration based at least in part on the UE receiving the DCI prior to a medium access control (MAC) control element (MAC-CE) selecting a subset of uplink transmission configuration indication (TCI) states included in an uplink TCI state pool configured for the UE. Numerous other aspects are provided.

公开(公告)号：US20230043456A1

公开(公告)日：2023-02-09

申请号：US17758121

申请日：2020-01-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to multi-slot transmission time interval based channel state information (CSI) and uplink shared channel (UL-SCH) multiplexing. In some aspects, a user equipment (UE) may receive a downlink control information (DCI) message and determine, based at least in part on the DCI message, a schedule for multiplexing UL-SCH data and one or more components of uplink control information (UCI) in a plurality of slots on a physical uplink shared channel (PUSCH). The components may include a CSI report for a plurality of transmission reception points. The UE may multiplex the UL-SCH data and the one or more components into the plurality of slots based at least in part on the schedule. Numerous other aspects are provided.

公开(公告)号：US20230016844A1

公开(公告)日：2023-01-19

申请号：US17816611

申请日：2022-08-01

Applicant: QUALCOMM Incorporated

Inventor： Yu ZHANG ,  Wanshi CHEN ,  Chao WEI ,  Hao XU

IPC: H04B7/06 ,  H04W76/30 ,  H04L5/00 ,  H04W24/10 ,  H04W80/08

Abstract: Certain aspects of the present disclosure provide techniques for dynamic switching of reference transmission schemes used by a UE for CSI measurement and reporting.

公开(公告)号：US20230016768A1

公开(公告)日：2023-01-19

申请号：US17757478

申请日：2020-01-20

Applicant: QUALCOMM Incorporated

Inventor： Wei YANG ,  Yi HUANG ,  Seyedkianoush HOSSEINI ,  Yu ZHANG ,  Wanshi CHEN ,  Peter GAAL ,  Krishna Kiran MUKKAVILLI

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

Abstract: Aspects of the present disclosure provide techniques for configuring and triggering aperiodic channel state information (A-CSI) reporting via a downlink grant. As will be described in greater detail below, the A-CSI report may be conveyed via a physical uplink control channel (PUCCH).

公开(公告)号：US20220416861A1

公开(公告)日：2022-12-29

申请号：US17755817

申请日：2019-11-18

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Yu ZHANG ,  Pavan Kumar VITTHALADEVUNI ,  Yeliz TOKGOZ ,  Krishna Kiran MUKKAVILLI

IPC: H04B7/06 ,  H04L1/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a first part of a channel state information (CSI) report, wherein the first part includes an indication of whether a value of a second part of the CSI report matches a value of a previous CSI report; and selectively transmit the second part of the CSI report based at least in part on whether the indication indicates that the value of the second part of the CSI report matches the value of the previous CSI report. In some aspects, a UE may determine a modified subband size of the UE, wherein the modified subband size is different than a configured subband size of the UE; and transmit, in a CSI report, an indication regarding the modified subband size to a base station. Numerous other aspects are provided.