公开(公告)号：US11968697B2

公开(公告)日：2024-04-23

申请号：US17399749

申请日：2021-08-11

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Lik Hang Silas Fong

IPC: H04W72/51 ,  H04L5/00 ,  H04W4/02 ,  H04W52/28

CPC classification number: H04W72/51 ,  H04L5/0048 ,  H04W4/023 ,  H04W52/283

Abstract: The described techniques relate to improved methods, systems, devices, and apparatuses that support spatial reuse for sidelink communications. Generally, the described techniques provide for a user equipment (UE) to reuse resources for receiving sidelink transmissions. The UE may receive a first sidelink control channel that may indicate a set of reserved resources for sidelink communications associated with a second UE. The first UE may decode a second sidelink control channel from the second UE based on the first sidelink control channel. The first UE may determine that the set of resources is available for use based on a result of decoding the second sidelink control channel, a radius of the second sidelink control channel, and the distance between the first UE and the second UE.

公开(公告)号：US20240121794A1

公开(公告)日：2024-04-11

申请号：US18543679

申请日：2023-12-18

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Chih-Hao Liu ,  Xiaoxia Zhang ,  Tao Luo ,  Piyush Gupta

IPC: H04W72/23 ,  H04L1/1812 ,  H04L1/1867 ,  H04W72/044 ,  H04W72/1263 ,  H04W72/20

CPC classification number: H04W72/23 ,  H04L1/1819 ,  H04L1/1896 ,  H04W72/0466 ,  H04W72/1263 ,  H04W72/20

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support configured reception with sidelink control information (SCI) repetition over a sidelink. In aspects, a receiving user equipment (UE) may be configured to conduct combined reception/decoding of SCI repetitions (received from a transmitting UE over a sidelink) over multiple time-frequency slots at pre-defined occasions (e.g., occasions configured by a base station) to decode a sidelink transmission. In aspects, a receiving UE may receive from a transmitting UE over a sidelink, a sidelink transmission during a reception occasion that includes a plurality of reception opportunities for the receiving UE. Each reception opportunity of the plurality of reception opportunities includes a repetition of an SCI. The receiving UE decodes the SCI by combining the repetitions of the SCI received in one or more reception opportunities, and decodes a data transmission (e.g., a physical sidelink shared channel (PSSCH) transmission) using the decoded SCI.

公开(公告)号：US11956653B2

公开(公告)日：2024-04-09

申请号：US17347124

申请日：2021-06-14

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Junyi Li ,  Tao Luo ,  Arumugam Chendamarai Kannan ,  Wooseok Nam ,  Hua Wang ,  Jelena Damnjanovic ,  Juan Montojo ,  Xiaoxia Zhang ,  Piyush Gupta

IPC: H04W24/08 ,  H04B17/318

CPC classification number: H04W24/08 ,  H04B17/318

Abstract: Certain aspects of the present disclosure provide techniques for determining and using channel ratio metrics for beamformed communication. A method that may be performed by a user equipment (UE) includes selecting a first beam of a plurality of beams for determining one or more channel ratio metrics, determining the one or more channel ratio metrics for the first beam, wherein determining the one or more channel ratio metrics is based, at least in part, on an angular separation between the first beam and one or more neighboring beams of the plurality of beams, and transmitting signaling via the first beam based on the one or more channel ratio metrics.

公开(公告)号：US11950232B2

公开(公告)日：2024-04-02

申请号：US17305940

申请日：2021-07-16

Applicant: QUALCOMM Incorporated

Inventor： Lik Hang Silas Fong ,  Piyush Gupta ,  Junyi Li ,  Xiaoxia Zhang

IPC: H04W72/20 ,  H04W72/044 ,  H04W72/23

CPC classification number: H04W72/20 ,  H04W72/044 ,  H04W72/23

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may transmit, to a second UE, a grant-only indicator to indicate that a second stage sidelink control information (SCI-2) is decoupled from physical sidelink shared channel (PSSCH) data in a slot, and that the SCI-2 indicates an SCI-2-only grant. The first UE may transmit, to the second UE in the slot, the SCI-2-only grant multiplexed with data-only traffic in a first PSSCH transmission based at least in part on the grant-only indicator, wherein the SCI-2-only grant indicates a resource allocation for a subsequent slot. Numerous other aspects are described.

公开(公告)号：US11950222B2

公开(公告)日：2024-04-02

申请号：US17335706

申请日：2021-06-01

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Sony Akkarakaran ,  Xiaojie Wang ,  Lik Hang Silas Fong ,  Piyush Gupta

IPC: H04W72/1263 ,  H04L1/00 ,  H04L5/00 ,  H04W72/0446 ,  H04W72/20

CPC classification number: H04W72/1263 ,  H04L1/0004 ,  H04L1/001 ,  H04L5/0048 ,  H04L5/0055 ,  H04W72/0446 ,  H04W72/20

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that indicates multiple time intervals corresponding to multiple physical sidelink shared channels (PSSCHs) within a slot, wherein at least one PSSCH, of the multiple PSSCHs, starts in a symbol other than an initial data symbol of the slot. The UE may communicate in one or more PSSCHs, of the multiple PSSCHs, within the slot based at least in part on the configuration. Numerous other aspects are described.

公开(公告)号：US11910360B2

公开(公告)日：2024-02-20

申请号：US17505539

申请日：2021-10-19

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Jing Sun ,  Tao Luo ,  Piyush Gupta ,  Juan Montojo ,  Peter Gaal ,  Sony Akkarakaran

IPC: H04W72/02 ,  H04L5/00 ,  H04W16/28 ,  H04W72/0453 ,  H04W72/044

CPC classification number: H04W72/02 ,  H04L5/0053 ,  H04W16/28 ,  H04W72/046 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a user equipment (UE) may utilize opportunistic cooperative relaying to support exchanging packets between UEs without establishing or maintaining beamforming alignment between the UEs. Specifically, a source UE may invite nearby UEs (e.g., helper UEs) that receive a sidelink transmission (e.g., a packet meant for a different destination UE) to perform a single frequency network (SFN)-type transmission to opportunistically relay the packet to the destination UE. The helper UEs may receive, decode, and transmit the sidelink signaling from the source UE without establishing or configuring a relay agreement with the source UE. The destination UE may receive the sidelink signaling via cascading, SFN-type transmissions by one or more helper UEs. The destination UE may respond to the sidelink signaling with feedback information via one or more helper UEs or directly to the source UE.

公开(公告)号：US11882559B2

公开(公告)日：2024-01-23

申请号：US17404463

申请日：2021-08-17

Applicant: QUALCOMM Incorporated

Inventor： Lik Hang Silas Fong ,  Piyush Gupta ,  Xiaojie Wang

IPC: H04W4/00 ,  H04W72/20 ,  H04W72/0446

CPC classification number: H04W72/20 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications are described. A first device, which may be a user equipment (UE), may transmit a sidelink control information SCI) message (e.g., an SCI-1 message) on a physical sidelink control channel (PSCCH) to a group of devices. The SCI may message may reserve a set of sidelink resources for a sidelink communication between the first device and a second device of the group of devices. The first device may receive an acknowledgment (ACK) message on a physical sidelink feedback channel (PSFCH) from the second device. Based on receiving the ACK message, the first device may release the set of sidelink resources and may transmit a release message (e.g., a physical sidelink release channel (PSRCH) message) on a PSRCH that includes an indication of the released set of sidelink resources.

公开(公告)号：US20230389073A1

公开(公告)日：2023-11-30

申请号：US17825944

申请日：2022-05-26

Applicant: QUALCOMM Incorporated

Inventor： Sherif Elazzouni ,  Ozcan Ozturk ,  Jing Sun ,  Qing Li ,  Xiaoxia Zhang ,  Junyi Li ,  Piyush Gupta

IPC: H04W74/08 ,  H04W72/04 ,  H04W76/30

CPC classification number: H04W74/0816 ,  H04W74/0866 ,  H04W72/0446 ,  H04W76/30 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a first sidelink signal indicating a set of resources that are reserved at the UE for sidelink communications. The UE may perform multiple listen-before-talk (LBT) procedures using respective consecutive slots of the set of resources. The UE may transmit another sidelink signal using a portion of the set of resources following the multiple LBT procedures. The UE may release a remaining portion of the set of resources after transmitting the second sidelink signal. Another UE may receive the first sidelink signal including the indication of the set of resources. The other UE may detect the remaining portion of the set of resources that may be available for the other UE to use for first sidelink communications based on overbooking at the UE.

公开(公告)号：US20230379924A1

公开(公告)日：2023-11-23

申请号：US18320925

申请日：2023-05-19

Applicant: QUALCOMM Incorporated

Inventor： Lik Hang Silas Fong ,  Jing Sun ,  Piyush Gupta ,  Xiaoxia Zhang ,  Junyi Li ,  Xiaojie Wang

IPC: H04W72/23 ,  H04L5/00 ,  H04W28/02

CPC classification number: H04W72/23 ,  H04L5/0055 ,  H04W28/0278

Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a method of wireless communication performed by a user equipment (UE) includes receiving, from a base station, a grant message indicating a set of sidelink resources. The method further includes transmitting multiple unicast messages via multiple subgroups of the set of sidelink resources.

公开(公告)号：US11825517B2

公开(公告)日：2023-11-21

申请号：US17173785

申请日：2021-02-11

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Junyi Li ,  Piyush Gupta

IPC: H04W74/04 ,  H04W72/04

CPC classification number: H04W74/04 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify that a sidelink communication is to be transmitted by the UE prior to a next sensing results sharing opportunity associated with a collaborative sensing schedule that is associated with resource selection for sidelink communications for a group of UEs that includes the UE. The UE may select resources for the sidelink communication. The UE may transmit the sidelink communication using the resources. Numerous other aspects are described.