公开(公告)号：US11683800B2

公开(公告)日：2023-06-20

申请号：US17321132

申请日：2021-05-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W72/20 ,  H04W74/08

CPC classification number: H04W72/20 ,  H04W74/0808

Abstract: Aspects of the present disclosure provide systems and methods for assigning one or more user equipments (UEs) at one or more corresponding starting positions of multiple slots to perform channel access procedures, such as listen before talk (LBT) procedures in New Radio unlicensed band (NR-U) sidelink communications. The network entity may indicate, to a UE, a starting position in a multi-opportunity grant (e.g., a DCI scheduling multiple slots). The network entity may multiplex different transmitter UEs with different starting positions. If the channel accessing procedure is successful, the transmitter UE with the earliest starting position than the rest may block the rest of the transmitter UEs. In some cases, starting position hopping may be used so that the multiple UEs may have different priority at different slots. In some cases, the DCI may include LBT parameters that are inherited from NR-U uplink transmission configurations.

公开(公告)号：US11677508B2

公开(公告)日：2023-06-13

申请号：US17304426

申请日：2021-06-21

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Jing Sun ,  Chih-Hao Liu

IPC: H04L1/18 ,  H04W72/04 ,  H04W16/14 ,  H04L1/1812 ,  H04W72/0453 ,  H04W72/20

CPC classification number: H04L1/1812 ,  H04W16/14 ,  H04W72/0453 ,  H04W72/20

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 via a sidelink sub-channel of a primary carrier, an indication that identifies one or more resources on the primary carrier for transmitting one or more hybrid automatic repeat request (HARQ) responses for one or more sidelink communications between the first UE and the second UE on a secondary carrier; and receive, from the second UE, on the one or more resources on the primary carrier, the one or more HARQ responses for the one or more sidelink communications on the secondary carrier. Numerous other aspects are provided.

公开(公告)号：US20230180184A1

公开(公告)日：2023-06-08

申请号：US17545430

申请日：2021-12-08

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang

IPC: H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W72/10

CPC classification number: H04W72/02 ,  H04W72/0446 ,  H04W72/0406 ,  H04W72/1263 ,  H04W72/10

Abstract: Methods, systems, and devices for wireless communications are described. An example method for wireless communication at a first wireless device, such as a user equipment (UE) may include receiving, at the first wireless device, a first sidelink control information (SCI) message from a second wireless device, wherein the first SCI message indicates a scheduling conflict between a first data transmission of the second wireless device and a second data transmission of the first wireless device. The method may also include transmitting a second SCI message from the first wireless device based at least in part on the scheduling conflict between the first data transmission and the second data transmission, wherein the second SCI message indicates a data resource allocation for the second data transmission that mitigates the scheduling conflict.

公开(公告)号：US11671981B2

公开(公告)日：2023-06-06

申请号：US17234344

申请日：2021-04-19

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W72/04 ,  H04W74/08 ,  H04W76/14 ,  H04L5/00 ,  H04L1/18 ,  H04W72/23 ,  H04W72/0446 ,  H04L1/1812 ,  H04L1/1829

CPC classification number: H04W72/23 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/0055 ,  H04W72/0446 ,  H04W74/08 ,  H04W76/14

Abstract: Certain aspects of the present disclosure provide a method for wireless communications by a transmitter UE. The method generally includes receiving, from a network entity, a downlink control information (DCI) allocating resources in an unlicensed frequency band for multiple physical sidelink shared channel (PSSCH) transmissions across multiple transmission time intervals (TTIs), performing a listen-before-talk (LBT) channel access procedure in the TTIs, and transmitting, to at least one receiver UE, one or more PSSCHs in one or more of the TTIs being indicated as passing the LBT channel access procedure based on the performance.

公开(公告)号：US11671967B2

公开(公告)日：2023-06-06

申请号：US17318246

申请日：2021-05-12

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Chih-Hao Liu ,  Xiaoxia Zhang

IPC: H04W72/20 ,  H04W28/26 ,  H04L5/00 ,  H04W72/12

CPC classification number: H04W72/20 ,  H04L5/0055 ,  H04W28/26 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a base station may configure allocate resources for sidelink communication between a first user equipment (UE) and a second UE as part of a sidelink communication mode 1 and, in some implementations, may configure the first UE (a sidelink receiver) with a set of periodic reception occasions, each reception occasion including multiple reception opportunities for receiving sidelink control information (SCI) from the second UE (a sidelink transmitter). In some examples, each reception opportunity may be associated with a different receive beam and, as such, the first UE may monitor for the SCI from the second UE over different reception opportunities and using different receive beams. Such configured beam-sweeping reception for SCI may increase sidelink reliability as a result of greater spatial diversity, which may increase the likelihood for successful communication between the first UE and the second UE.

公开(公告)号：US11647500B2

公开(公告)日：2023-05-09

申请号：US17444257

申请日：2021-08-02

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Jing Sun

IPC: H04W4/00 ,  H04W72/12 ,  H04W72/1263

CPC classification number: H04W72/1278 ,  H04W72/1263

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first sidelink user equipment (UE) may transmit, to a second sidelink UE via sidelink control information (SCI), a receiving (Rx) beam schedule indicating Rx beams associated with the first sidelink UE in a set of slots, wherein the Rx beam schedule indicates that the first sidelink UE is configured to tune to the Rx beams in the set of slots for possible sidelink receptions. The first sidelink UE may receive, from the second sidelink UE, a sidelink transmission using an Rx beam indicated in the Rx beam schedule. Numerous other aspects are described.

公开(公告)号：US11647486B2

公开(公告)日：2023-05-09

申请号：US17141699

申请日：2021-01-05

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Chih-Hao Liu ,  Xiaoxia Zhang ,  Jing Sun ,  Yongbin Wei

IPC: H04W72/04 ,  H04W72/044 ,  H04L5/00 ,  H04W72/00

CPC classification number: H04W72/044 ,  H04L5/0042 ,  H04W72/005 ,  H04W72/048 ,  H04W72/0413

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that an availability condition is satisfied, wherein the availability condition relates to an availability of the UE for sidelink communication; identify future available information (FAI) that indicates at least one of a time domain availability of the UE for sidelink communication or a frequency domain availability of the UE for sidelink communication; and transmit the FAI based at least in part on determining that the availability condition is satisfied. Numerous other aspects are provided.

公开(公告)号：US20230124012A1

公开(公告)日：2023-04-20

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 ,  H04W72/04 ,  H04L5/00 ,  H04W16/28

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：US11621756B2

公开(公告)日：2023-04-04

申请号：US17308492

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04W92/18

Abstract: CG-based sidelink beamforming alignment is disclosed. The initiator UE may receive, from a base station, a CG indicating one or more CG resources for a beamforming alignment procedure. The initiator UE may transmit, to at least one responder UE via one or more Tx beams on the one or more CG resources, beam-sweeping SCI for the beamforming alignment procedure. The beam-sweeping SCI may include at least one of: a Tx beam index, a time period to monitor for beam-feedback SCI, or a time window including CG occasions for a same beam transmission of ACK SCI. The initiator UE may monitor, over the time period, for beam-feedback SCI from the at least one responder UE. The initiator UE may receive, from the at least one responder UE, the beam-feedback SCI within the time period.

公开(公告)号：US20230098101A1

公开(公告)日：2023-03-30

申请号：US17485089

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu

IPC: H04L1/18 ,  H04W72/04

Abstract: Methods, systems, and devices supporting flexible frequency domain resource allocation (FDRA) for sidelink are described. For example, a wireless device may receive, over a sidelink channel, control information including a parameter associated with a first FDRA of a first transport block (TB) associated with an initial transmission and an indication of a second FDRA of a second TB associated with a subsequent transmission after the initial transmission. The wireless device may identify the first FDRA of the first TB based on receiving the control information and may communicate one or more signals over the sidelink channel based on identifying the first FDRA of the first TB and receiving the indication of the second FDRA of the second TB. In some examples, the wireless device may receive, over a second sidelink channel, second control information including a second parameter associated with a size of the second TB.