公开(公告)号：US12302412B2

公开(公告)日：2025-05-13

申请号：US17824660

申请日：2022-05-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described that provide for user equipment (UE) in sidelink communications to agree on transmission directions and a traffic pattern for a sidelink channel, where a transmitting UE has higher priority in channel access than a receiving UE. When establishing a connection via sidelink, two or more UEs may agree on a resource pattern for a set of sidelink resources where a first UE has higher priority than a second UE for a first subset of resources. The first UE may be given higher priority in the first subset of resources through adjustments to a channel access procedure for requesting channel access, adjustments to one or more access thresholds or channel access priority classes, contention window adjustments, or any combinations thereof. Layer one signaling may be used to reconfigure channel access priority and the traffic pattern between UEs.

公开(公告)号：US20250150213A1

公开(公告)日：2025-05-08

申请号：US18835282

申请日：2022-03-17

Applicant: QUALCOMM INCORPORATED

Inventor： Shaozhen Guo ,  Changlong Xu ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Hao Xu ,  Luanxia Yang ,  Siyi Chen

IPC: H04L1/1829 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive configuration information indicating a sidelink resource pool, a time gap, and a periodicity of feedback occasions. The UE may generate feedback bits associated with multiple received sidelink messages based on the configuration information. The UE may transmit the feedback bits in a single, multi-bit feedback message according to one or more rules. In some examples, the UE may drop one or more sets of feedback bits (e.g., in the case of a collision of too many feedback messages in a single slot) based on a weighted average priority level of one or more valid feedback bits in each of multiple sets of feedback bits.

公开(公告)号：US12279320B2

公开(公告)日：2025-04-15

申请号：US18545920

申请日：2023-12-19

Applicant: Qualcomm Incorporated

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

IPC: H04W76/14 ,  H04L1/06 ,  H04W72/0446 ,  H04W72/121

Abstract: Certain aspects of the present disclosure provide techniques for techniques for providing sidelink feedback. Certain aspects provide a method for wireless communication by a first user equipment (UE). The method generally includes receiving, from a second UE, one or more sidelink data messages and transmitting, to the second UE, via a first sidelink feedback channel resource, a first feedback message comprising one or more feedback bits associated with the one or more sidelink data messages, wherein: the first sidelink feedback channel resource comprises a first partial interlace group of a first interlace group of resource blocks, and the first partial interlace group comprises at least two first resource blocks.

公开(公告)号：US12219507B2

公开(公告)日：2025-02-04

申请号：US17651569

申请日：2022-02-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W52/52 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/20

Abstract: Wireless communications systems and methods related to communicating information are provided. A method of wireless communication performed by a first sidelink user equipment (UE) may include receiving, from a second sidelink UE, an indicator indicating a tracking reference signal (TRS) periodicity, receiving, from the second sidelink UE, a TRS based on the TRS periodicity, acquiring time and frequency synchronization with the second sidelink UE based on the TRS, and receiving a physical sidelink shared channel (PSSCH) communication based on the time and frequency synchronization with the second sidelink UE.

公开(公告)号：US12199781B2

公开(公告)日：2025-01-14

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: H04L1/1867 ,  H04L1/1812 ,  H04W72/23

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：US12185263B2

公开(公告)日：2024-12-31

申请号：US17649409

申请日：2022-01-31

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/20 ,  H04W92/18

Abstract: Wireless communications systems and methods related to communicating information are provided. A method of wireless communication performed by a first sidelink user equipment (UE) may include receiving, from a second sidelink UE, a tracking reference signal (TRS), synchronizing time and frequency with the second sidelink UE based on the TRS, and receiving a physical sidelink shared channel (PSSCH) communication based on the time and frequency synchronization with the second sidelink UE.

公开(公告)号：US12177846B2

公开(公告)日：2024-12-24

申请号：US18523865

申请日：2023-11-29

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/20 ,  H04L1/1812

Abstract: This disclosure provides systems, methods and apparatuses for indicating sidelink processes for sidelink feedback. A second user equipment (UE) may request hybrid automatic repeat request (HARQ) responses from a first UE for a particular set of sidelink processes over a physical sidelink feedback channel. To indicate multiple sidelink processes, the second UE may indicate, in sidelink control information, a window of sidelink processes. The window may be a sliding window that starts with a starting sidelink process and extends through other sidelink processes. The second UE may transmit data for the sidelink processes in the sliding window and receive feedback for the indicated sidelink processes. In some aspects, the first UE may select, in coordination with the second UE, the sidelink processes for which feedback is to be provided.

公开(公告)号：US11985632B2

公开(公告)日：2024-05-14

申请号：US17450000

申请日：2021-10-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04W72/20 ,  H04W72/56

CPC classification number: H04W72/02 ,  H04W72/20 ,  H04W72/56

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter user equipment (UE) may identify a sidelink resource allocation mode that indicates a manner in which one or more sidelink resources are allocated for use by the transmitter UE. The UE may transmit, to a receiver UE, sidelink control information (SCI) that includes an indication that is based at least on part on the sidelink resource allocation mode. Numerous other aspects are described.

公开(公告)号：US11974255B2

公开(公告)日：2024-04-30

申请号：US17303196

申请日：2021-05-24

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04L1/1812 ,  H04L1/1867 ,  H04W72/20

CPC classification number: H04W72/02 ,  H04L1/1819 ,  H04L1/1896 ,  H04W72/20

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) may receive a communication from a second UE. The first UE may select an index that represents multiple control bits associated with the communication. The first UE may transmit an indication of the index in a portion of a physical sidelink feedback channel (PSFCH) resource pool that is selected based at least in part on the index. Numerous other aspects are described.

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.