公开(公告)号：US20230387973A1

公开(公告)日：2023-11-30

申请号：US18304665

申请日：2023-04-21

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG ,  Chih-Hao LIU

IPC: H04B7/0456 ,  H04B7/0417

CPC classification number: H04B7/0456 ,  H04B7/0417

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support mechanisms for sidelink beamforming alignment over a set of resources based on a deterministic sequence in a wireless communication system. In aspects, an sidelink initiator user equipment (UE) may initiate a beamforming alignment procedure with a responder UE over a the sidelink. The initiator UE may define a set of subchannels specified by a deterministic sequence. The set of subchannels may be subchannels over which the initiator UE may perform reception beam sweeping. The deterministic sequence may be anchored to a direct frame number (DFN) of the sidelink frame without initial sensing, and may be determined via a sequence index, as a function of sidelink UE identification ID(s), or a combination thereof. In this manner, the number of bits for indicating the deterministic sequence to the responder UE may be reasonable, manageable, and/or moderate.

公开(公告)号：US20230361954A1

公开(公告)日：2023-11-09

申请号：US17662011

申请日：2022-05-04

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Jing SUN ,  Yisheng XUE ,  Xiaoxia ZHANG ,  Giovanni CHISCI

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0064

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a sidelink synchronization signal block (S-SSB) in a slot. The UE may transmit remaining minimum system information (RMSI) associated with the S-SSB, wherein the RMSI is transmitted in a physical sidelink shared channel (PSSCH) that is multiplexed with the S-SSB in the slot. Numerous other aspects are described.

公开(公告)号：US20230319872A1

公开(公告)日：2023-10-05

申请号：US17655598

申请日：2022-03-21

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Jing SUN ,  Chih-Hao LIU ,  Xiaoxia ZHANG

IPC: H04W74/08 ,  H04W16/14 ,  H04W74/00 ,  H04L27/26

CPC classification number: H04W74/0808 ,  H04L27/2607 ,  H04W16/14 ,  H04W74/002

Abstract: Certain aspects of the present disclosure provide a method for wireless communications by a transmitter user equipment (UE). The method may include transmitting, to a receiver UE, sidelink control information (SCI) to reserve a future sidelink resource for a sidelink transmission to the receiver UE, wherein the SCI indicates transmission of the sidelink transmission will begin with a cyclic prefix (CP) extension (CPE). The method may further include transmitting, to the receiver UE, the sidelink transmission with the CPE on the future sidelink resource in accordance with the SCI.

公开(公告)号：US20230284203A1

公开(公告)日：2023-09-07

申请号：US17652994

申请日：2022-03-01

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Jing SUN ,  Chih-Hao LIU ,  Xiaoxia Zhang

IPC: H04W72/12 ,  H04W72/14

CPC classification number: H04W72/1263 ,  H04W72/14 ,  H04W72/1289 ,  H04W92/18

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a first sidelink user equipment (UE) may include receiving, from a base station (BS), an indicator associated with occupancy of a channel-access gap symbol and transmitting, to a second sidelink UE, a first physical sidelink shared channel (PSSCH) communication via the channel-access gap symbol based on the indicator associated with the occupancy of the channel-access gap symbol.

公开(公告)号：US20230247528A1

公开(公告)日：2023-08-03

申请号：US18000334

申请日：2020-06-09

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Jing SUN ,  Xiaoxia ZHANG ,  Yisheng XUE ,  Juan MONTOJO ,  Tao LUO ,  Peter GAAL ,  Changlong XU ,  Ozcan OZTURK

IPC: H04W48/08 ,  H04W74/08

CPC classification number: H04W48/08 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently identifying resources for transmitting one or more sidelink synchronization signal blocks (S-SSBs) in the shared spectrum or efficiently beam sweeping multiple S-SSBs in the shared spectrum. In one aspect, a user equipment (UE) may transmit an S-SSB in a sidelink bandwidth part (BWP) in the shared spectrum such that a lower edge of the S-SSB is aligned with or offset from a lower edge of the sidelink BWP. In another aspect, a UE may beam sweep S-SSBs in one or more S-SSB bursts in a S-SSB period to improve the chances that another UE may receive the S-SSBs. In yet another aspect, resources allocated for S-SSB transmissions may facilitate flexible S-SSB transmissions while minimizing gaps to prevent other UEs from incorrectly determining that a sidelink BWP in a shared spectrum is clear for transmission.

公开(公告)号：US20230232426A1

公开(公告)日：2023-07-20

申请号：US18001696

申请日：2020-07-14

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Jing SUN ,  Xiaoxia ZHANG ,  Yisheng XUE ,  Changlong XU ,  Tao LUO ,  Sony AKKARAKARAN ,  Juan MONTOJO ,  Ozcan OZTURK

IPC: H04W72/25 ,  H04W72/044 ,  H04L1/00 ,  H04W56/00

CPC classification number: H04W72/25 ,  H04W72/046 ,  H04L1/0013 ,  H04W56/001

Abstract: Methods, systems, and devices for wireless communications are described. A UE may identify a configuration of sidelink synchronization signal block instances including a first quantity of sidelink synchronization signal block instances for each of a plurality of sidelink synchronization signal block periods. The UE may transmit a second quantity of sidelink synchronization signal block instances over a first sidelink synchronization signal block period. In some aspects, the UE may transmit a sidelink synchronization signal block burst using beams in a sidelink synchronization signal block period. The UE may identify a configuration for a set of resources of a sidelink beam selection resource pool based on transmitting the sidelink synchronization signal block burst. The UE may receive, from another UE over the set of resources, a control message including an indication of preferred beams. The UE may transmit the sidelink data to the other UE using the preferred beams.

公开(公告)号：US20230224873A1

公开(公告)日：2023-07-13

申请号：US17647724

申请日：2022-01-11

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho RYU ,  Junyi LI ,  Sony AKKARAKARAN ,  Tao LUO ,  Wooseok NAM ,  Xiaojie WANG ,  Yan ZHOU ,  Peter GAAL ,  Juan MONTOJO ,  Xiaoxia ZHANG ,  Hua WANG ,  Piyush GUPTA ,  Kobi RAVID ,  Chih-Hao LIU ,  Lik Hang Silas FONG ,  Jing SUN

IPC: H04W72/04 ,  H04W52/52 ,  H04L27/26

CPC classification number: H04W72/0446 ,  H04W52/52 ,  H04L27/2607

Abstract: Certain aspects of the present disclosure provide techniques for configuring sidelink slots without symbols for automatic gain control. One aspect provides a method for wireless communication by a user equipment, including receiving a first cyclic prefix of a first symbol within a slot at the user equipment. The method further includes configuring a first automatic gain control setting based on a received power in the first cyclic prefix of the first symbol, and receiving a data portion of the first symbol using the first automatic gain control setting.

公开(公告)号：US20230224864A1

公开(公告)日：2023-07-13

申请号：US17647721

申请日：2022-01-11

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho RYU ,  Junyi LI ,  Tao LUO ,  Sony AKKARAKARAN ,  Juan MONTOJO ,  Wooseok NAM ,  Yan ZHOU ,  Peter GAAL ,  Xiaojie WANG ,  Hua WANG ,  Piyush GUPTA ,  Xiaoxia ZHANG ,  Lik Hang Silas FONG ,  Chih-Hao LIU ,  Jing SUN

IPC: H04W72/02 ,  H04W72/04

CPC classification number: H04W72/02 ,  H04W72/0446 ,  H04W72/0406

Abstract: Certain aspects of the present disclosure provide techniques for enabling mini-slot detection in sidelink. A method performed by a user equipment (UE) includes receiving a sidelink configuration comprising a set of configuration parameters. The set of configuration parameters defines a plurality of sidelink mini-slots within a slot structure. The method may further include performing communications in one or more of the plurality of sidelink mini-slots.

公开(公告)号：US20230163827A1

公开(公告)日：2023-05-25

申请号：US17456074

申请日：2021-11-22

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie WANG ,  Junyi LI ,  Piyush GUPTA ,  Chih-Hao LIU ,  Xiaoxia ZHANG ,  Jing SUN ,  Yisheng XUE

IPC: H04B7/06 ,  H04L1/00

CPC classification number: H04B7/0641 ,  H04B7/0626 ,  H04L1/0003 ,  H04B7/0632

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may receive a configuration associated with reporting delta channel state information (CSI). The first wireless communication device may compute the delta CSI based at least in part on the configuration, the delta CSI indicating a difference between first CSI associated with a first connection and second CSI associated with a second connection, the first connection being between the first wireless communication device and a base station and the second connection being between the first wireless communication device and a second wireless communication device. The first wireless communication device may transmit, based at least in part on the configuration, a CSI report including an indication of the delta CSI and at least one of an indication of the first CSI or an indication of the second CSI. Numerous other aspects are described.

公开(公告)号：US20230146161A1

公开(公告)日：2023-05-11

申请号：US17906509

申请日：2020-04-16

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Xiaoxia ZHANG ,  Changlong XU ,  Chih-Hao LIU ,  Ozcan OZTURK ,  Yisheng XUE

IPC: H04W74/08 ,  H04W72/25 ,  H04L27/26

CPC classification number: H04W74/0816 ,  H04W74/0866 ,  H04W72/25 ,  H04L27/2607

Abstract: Wireless communications systems and methods related to use of cyclic prefix (CP) extensions for channel occupancy time (COT) sharing among sidelink user equipment devices (UEs) are provided. A first UE detects a first sidelink transmission in a COT, the COT for sharing with multiple sidelink UEs including the first sidelink UE. The first UE may determine a CP extension length for transmitting a second sidelink transmission after the first sidelink transmission, where a gap duration between the first sidelink transmission and the second sidelink transmission satisfies a listen-before-talk (LBT) gap time threshold. The first UE may apply a CP extension having the CP extension length to the second sidelink transmission and transmit, to a second sidelink UE, the second sidelink transmission with the CP extension.