公开(公告)号：US20230139912A1

公开(公告)日：2023-05-04

申请号：US17915286

申请日：2020-05-29

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W74/08 ,  H04W74/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) communicating over sidelink in unlicensed spectrum may perform channel congestion control based on channel busy measurements. For example, a UE may perform channel busy measurement over different resource sets to identify congestion levels from different Radio Access Technologies (RATs). The UE may perform a first channel busy measurement on a first resource set where the first resource set contains resources where sidelink UEs are configured to pause transmission and the UE may perform a second channel busy measurement on a second resource set when sidelink UEs and wireless devices of other RATs are free to contend for resources and transmit. The UE may perform third channel busy measurement on a third resource set where the third resource set contains resources with contention-based access success.

公开(公告)号：US20230127485A1

公开(公告)日：2023-04-27

申请号：US17905916

申请日：2020-04-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W76/14 ,  H04W56/00

Abstract: Wireless communications systems and methods related to stand-alone sidelink communication are provided. A first user equipment (UE) determines system parameter information to initiate a sidelink communication. The first UE transmits, in one or more first subbands of a plurality of subbands within a shared radio frequency during a first time period, the system parameter information. The first UE communicates, with a second UE in a second subband of the plurality of subbands during a second time period different from the first time period, sidelink data based on the system parameter information.

公开(公告)号：US20230114450A1

公开(公告)日：2023-04-13

申请号：US17450259

申请日：2021-10-07

Applicant: QUALCOMM Incorporated

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

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

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a first user equipment (UE) may include transmitting, to a second UE in a first time period, a resource reservation indicating resources associated with at least one channel state information reference signal (CSI-RS), transmitting, to the second UE, the at least one CSI-RS in a second time period, wherein the second time period is at least K time periods after the first time period, and receiving, from the second UE, a CSI report based on the at least one CSI-RS.

公开(公告)号：US20230087225A1

公开(公告)日：2023-03-23

申请号：US17483752

申请日：2021-09-23

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04L1/18

Abstract: Disclosed are techniques for wireless communication. In an aspect, a UE determines a sidelink resource configuration for a slot, wherein the sidelink resource configuration includes a first set of resources carrying a first PSSCH in a first mini-slot of the slot, a second set of resources carrying a second PSSCH in a second mini-slot of the slot, and a third set of resources carrying a PSFCH associated with one or more PSSCHs of one or more preceding slots. The UE may communicate data over at least a portion of the slot in accordance with the sidelink resource configuration. In some designs, a sidelink management device (e.g., the UE, another UE, or a network component) may transmit the sidelink resource configuration.

公开(公告)号：US20230041572A1

公开(公告)日：2023-02-09

申请号：US17395390

申请日：2021-08-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/08 ,  H04W72/04 ,  H04L5/00

Abstract: Apparatus, methods, and computer-readable media for facilitating opportunistic CSI for sidelink communication are disclosed herein. An example method for wireless communication at a responding sidelink UE includes receiving, from an initiating sidelink UE, a request to provide CSI feedback to the initiating sidelink UE, the request excluding a CSI-RS. The example method also includes decoding a transmission from the initiating sidelink UE to a neighboring sidelink UE, the transmission including a CSI feedback trigger. The example method also includes transmitting, to the initiating sidelink UE, a CSI report based on the transmission.

公开(公告)号：US20220417957A1

公开(公告)日：2022-12-29

申请号：US17304729

申请日：2021-06-24

Applicant: QUALCOMM INCORPORATED

Inventor： Chih-Hao LIU ,  Yisheng XUE ,  Jing SUN ,  Xiaojie WANG ,  Xiaoxia ZHANG ,  Sony AKKARAKARAN ,  Piyush GUPTA ,  Juan MONTOJO ,  Ozcan OZTURK

IPC: H04W72/12 ,  H04W72/04

Abstract: Wireless communications systems and methods related to communicating control information are provided. A method of wireless communication performed by a user equipment (UE) may include mapping a transport block (TB) to a first sub-physical sidelink shared channel (sub-PSSCH) of a plurality of sub-PSSCHs of a PSSCH and transmitting, to at least one other UE, the TB via the first sub-PSSCH.

公开(公告)号：US20220400468A1

公开(公告)日：2022-12-15

申请号：US17343436

申请日：2021-06-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04W72/04 ,  H04L1/18

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for configuring, in a slot, a low-latency transport block (TB) occupying one or more first temporal resources, a non-low-latency TB occupying one or more second temporal resources different from the one or more first temporal resources, and control information occupying at least a portion of the one or more first temporal resources, wherein the low-latency TB and the non-low-latency TB are time division multiplexed, and transmitting the low-latency TB and the non-low-latency TB via a physical sidelink shared channel (PSSCH) and the control information via a physical sidelink control channel (PSCCH) to one or more peer UEs.

公开(公告)号：US20220393807A1

公开(公告)日：2022-12-08

申请号：US17333643

申请日：2021-05-28

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/18 ,  H04W72/04

Abstract: The apparatus may be a UE configured to select, from a plurality of PSFCH resource sub-pools of a PSFCH resource pool for receiving HARQ feedback, a particular PSFCH resource sub-pool for receiving HARQ feedback associated with a particular SL transmission; transmit, to at least one UE, a PSRI identifying the particular PSFCH resource sub-pool; and receive, from the at least one UE, HARQ feedback regarding the particular SL transmission, the HARQ feedback being received via resources in the PSFCH resource sub-pool indicated by the PSRI. The apparatus may be a base station in a Mode 1 resource allocation that may select, from a plurality of PSFCH resource sub-pools of a PSFCH resource pool for receiving HARQ feedback, a particular PSFCH resource sub-pool for receiving HARQ feedback associated with the particular SL transmission and transmit, to a UE, a PSRI identifying the particular PSFCH resource sub-pool.

公开(公告)号：US20220393735A1

公开(公告)日：2022-12-08

申请号：US17339095

申请日：2021-06-04

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/0456 ,  H04W80/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to another UE, a sidelink channel state information reference signal (S-CSI-RS) and an indication associated with triggering a non-codebook based precoded S-CSI-RS. The UE may receive, from the other UE, the non-codebook based precoded S-CSI-RS. The UE may transmit, to the other UE, a non-codebook based channel state information (CSI) report medium access control (MAC) control element (MAC-CE) that includes an indication of one or more selected precoding beams based at least in part on the non-codebook based precoded S-CSI-RS. Numerous other aspects are described.

公开(公告)号：US20220353915A1

公开(公告)日：2022-11-03

申请号：US17243325

申请日：2021-04-28

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Yisheng XUE ,  Jing SUN ,  Xiaoxia ZHANG ,  Piyush GUPTA ,  Tao LUO ,  Juan MONTOJO ,  Peter GAAL ,  Sony AKKARAKARAN ,  Ozcan OZTURK

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04W72/14 ,  H04W72/12

Abstract: Aspects described herein relate to sidelink transmissions. In an example, a first user equipment (UE) may receive a multi-opportunity grant from a network entity, the multi- opportunity grant indicating multiple listen-before-talk (LBT) opportunities for scheduling a transmission between the first UE and a second UE; perform a LBT procedure for one or more slots of a plurality of slots indicated by the multiple LBT opportunities; select a first slot of the plurality of slots corresponding to an earliest available LBT based on performing the LBT procedure; and communicate a transmission to the second UE during the transmission time interval (TTI) of the first slot.