公开(公告)号：US11924873B2

公开(公告)日：2024-03-05

申请号：US17151105

申请日：2021-01-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08

CPC classification number: H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may perform a first transmission to one or more receiving devices, the first transmission associated with a transmission type. The transmitting device may determine a feedback response for the first transmission based on monitoring for feedback messages from the one or more receiving devices in response to the first transmission. The transmitting device may select a contention window size for performing one or more subsequent transmissions based at least in part on the feedback response and the transmission type. The transmitting device may perform the one or more subsequent transmissions in accordance with a clear channel assessment procedure using the selected contention window size.

公开(公告)号：US11895700B2

公开(公告)日：2024-02-06

申请号：US17103012

申请日：2020-11-24

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/04 ,  H04W74/08

CPC classification number: H04W74/0808 ,  H04W28/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select, within a resource selection window, a set of resources in which to transmit over an unlicensed sidelink channel. The UE may attempt a listen before talk (LBT) procedure to initiate a channel occupancy time in which to transmit over the unlicensed sidelink channel. The UE may adjust, within at least a portion of the resource selection window, the set of resources in which to transmit over the unlicensed sidelink channel to be contiguous in at least a time domain based at least in part on the LBT procedure succeeding. The UE may transmit, over the unlicensed sidelink channel, using the set of resources that are adjusted to be contiguous in at least the time domain. Numerous other aspects are provided.

公开(公告)号：US11889517B2

公开(公告)日：2024-01-30

申请号：US17308714

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/23 ,  H04W72/1263 ,  H04L1/1867 ,  H04W72/044 ,  H04L1/1812 ,  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：US11863501B2

公开(公告)日：2024-01-02

申请号：US16655095

申请日：2019-10-16

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Chih-Hao Liu ,  Tamer Kadous

IPC: H04L5/14 ,  H04L5/00 ,  H04L1/00 ,  H04W72/23 ,  H04W72/0446

CPC classification number: H04L5/1438 ,  H04L1/0038 ,  H04L1/0045 ,  H04L1/0072 ,  H04L5/001 ,  H04L5/0003 ,  H04L5/0057 ,  H04L5/0078 ,  H04L5/0094 ,  H04L5/1469 ,  H04L5/005 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04W72/0446 ,  H04W72/23

Abstract: A method, an apparatus, and a computer program for wireless communication that allows for greater scheduling flexibility of physical resources are disclosed. A UE determines a time division duplex (TDD) frame structure for a plurality of frames, where the plurality of frames include a plurality of uplink (UL) subframes and a plurality of downlink (DL) subframes. The UE determines whether a control signaling instance is scheduled during an UL subframe of the plurality of UL subframes, wherein the control signaling instance is scheduled periodically and the control signaling includes at least one of a random access channel, an uplink control channel, a sounding reference signal (SRS), or a scheduling request (SR). The UE communicates the control signaling instance if the control signaling instance is scheduled during an UL subframe.

公开(公告)号：US11856577B2

公开(公告)日：2023-12-26

申请号：US17305595

申请日：2021-07-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L1/18 ,  H04W72/20 ,  H04L1/1812

CPC classification number: 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 (HARD) 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：US11856559B2

公开(公告)日：2023-12-26

申请号：US17248248

申请日：2021-01-15

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W52/14 ,  H04W72/044 ,  H04L5/00 ,  H04W72/1268 ,  H04W72/23 ,  H04W74/00 ,  H04W72/21 ,  H04W4/10 ,  H04W76/45

CPC classification number: H04W72/044 ,  H04L5/0055 ,  H04W52/14 ,  H04W72/1268 ,  H04W72/21 ,  H04W72/23 ,  H04W74/004 ,  H04W4/10 ,  H04W76/45

Abstract: Wireless communications systems and methods related to uplink communications with transmission on-off patterns and frequency-hopping in a shared radio frequency band are provided. A first wireless communication device communicates, with a second wireless communication device, a configuration indicating a plurality of uplink (UL) transmission on-off patterns that are offset from each other in time. The first wireless communication device communicates, with the second wireless communication device in an unlicensed band, a first UL communication signal based on a first UL transmission on-off pattern of the plurality of UL transmission on-off patterns.

公开(公告)号：US11838950B2

公开(公告)日：2023-12-05

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 ,  H04W72/1263 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W74/0816 ,  H04W72/0446 ,  H04W72/1263 ,  H04W72/23 ,  H04W74/008

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.

公开(公告)号：US11832250B2

公开(公告)日：2023-11-28

申请号：US17212785

申请日：2021-03-25

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Jing Sun ,  Xiaoxia Zhang ,  Ozcan Ozturk

IPC: H04W72/20 ,  H04W76/28

CPC classification number: H04W72/20 ,  H04W76/28

Abstract: Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for decoding, by a first user equipment (UE), a sidelink control information (SCI) from at least a second UE, the SCI indicating time resources reserved for future transmission to a third UE; and adapting a sidelink transmit discontinuous reception (DRX) pattern of the first UE based on the indicated time resources.

公开(公告)号：US11825483B2

公开(公告)日：2023-11-21

申请号：US16910855

申请日：2020-06-24

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/14 ,  H04W72/23 ,  H04W72/0453 ,  H04W76/25 ,  H04W52/48 ,  H04W72/121 ,  H04W28/04 ,  H04W72/20 ,  H04W72/566 ,  H04W76/14 ,  H04W92/18

CPC classification number: H04W72/23 ,  H04W28/04 ,  H04W52/48 ,  H04W72/0453 ,  H04W72/121 ,  H04W72/20 ,  H04W72/566 ,  H04W76/25 ,  H04W76/14 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter user equipment (UE) may transmit, to a receiver UE, a stage one sidelink control information (SCI) message that indicates one or more sub-channels occupied by the transmitter UE. The transmitter UE may transmit, to the receiver UE, a physical sidelink shared channel (PSSCH) using the one or more sub-channels occupied by the transmitter UE according to a configured grant associated with the transmitter UE. Numerous other aspects are provided.

公开(公告)号：US11812460B2

公开(公告)日：2023-11-07

申请号：US17506513

申请日：2021-10-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/23 ,  H04W72/542 ,  H04W72/1263 ,  H04L5/00 ,  H04W24/10

CPC classification number: H04W72/542 ,  H04L5/0053 ,  H04W24/10 ,  H04W72/1263 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. Aspects of the disclosure describe using sidelink resources to identify possible interference (e.g., including cross-link interference) in a first resources used for communications between a base station and a user equipment (UE). With such techniques, a base station may transmit a conditional grant to a UE that schedules resources for the UE to use to communicate with the base station (e.g., either uplink or downlink). The UE may monitor sidelink resources to identify an indication of interference for the resources scheduled by the conditional grant. Different UEs may exchange messages or may transmit energy over the sidelink network to indicate resources are being used to communicate between base stations and UEs. The UE may transmit an acknowledgement or a negative acknowledgement to the base station indicating whether the resources scheduled by the conditional grant are to be used by the UE.