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：US11864170B2

公开(公告)日：2024-01-02

申请号：US17445279

申请日：2021-08-17

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/044 ,  H04W72/0453 ,  H04W92/18

CPC classification number: H04W72/046 ,  H04W72/0453 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first UE may receive, from a second UE, resource reserving sidelink control information that indicates a transmit beam of the second UE and a sidelink resource of the second UE. The first UE may transmit data on the sidelink resource of the second UE using a transmit beam of the first UE that does not spatially overlap with the transmit beam of the second UE. Numerous other aspects are provided.

公开(公告)号：US20230403738A1

公开(公告)日：2023-12-14

申请号：US17840157

申请日：2022-06-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W74/0816 ,  H04W74/0866 ,  H04W74/002 ,  H04L5/0051 ,  H04W72/0446 ,  H04W72/1263 ,  H04L1/0067 ,  H04W72/02

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting user equipment may receive control information indicative of a plurality of starting symbols in a first slot, the plurality of starting symbols including at least one default starting symbol and one or more subsequent starting symbols, each of the plurality of starting symbols representing a potential starting symbol for transmission, by the transmitting UE, of a sidelink communication. The transmitting UE may perform a listen-before-talk procedure during at least the first slot and may transmit, to a receiving UE and based on performance of the listen-before-talk procedure during at least the first slot, at least an initial portion of the sidelink communication during a selected starting symbols of the plurality of starting symbols, the selected starting symbol being one of the one or more subsequent starting symbols and representing a beginning of a channel occupancy duration.

公开(公告)号：US11812412B2

公开(公告)日：2023-11-07

申请号：US17302289

申请日：2021-04-29

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Junyi Li ,  Juan Montojo ,  Peter Gaal ,  Tao Luo ,  Ozcan Ozturk ,  Piyush Gupta ,  Rajat Prakash

IPC: H04W72/02 ,  H04W72/0446 ,  H04W72/20 ,  H04W72/52

CPC classification number: H04W72/02 ,  H04W72/0446 ,  H04W72/20 ,  H04W72/52

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may transmit a sidelink control information message that dynamically allocates a resource pool for one or more user equipment to transmit control information to the wireless communication device. Numerous other aspects are provided.

公开(公告)号：US11805522B2

公开(公告)日：2023-10-31

申请号：US17408302

申请日：2021-08-20

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Yisheng Xue ,  Lik Hang Silas Fong ,  Jing Sun ,  Xiaoxia Zhang ,  Xiaojie Wang ,  Jung Ho Ryu ,  Tao Luo

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

CPC classification number: H04W72/20 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications are described in which a first user equipment (UE) may transmit sidelink communications to a second UE, and the second UE may provide feedback associated with the sidelink communication to the first UE in a sidelink control information (SCI) transmission. In some cases, the SCI is first stage SCI transmitted in a sidelink control channel or second stage SCI transmitted in a sidelink shared channel. The feedback may include one or more of acknowledgment/negative-acknowledgment feedback, channel state information feedback, a scheduling request, or any combinations thereof. In some cases, the first UE may indicate resources of the second slot to the second UE for transmission of the feedback in the SCI, such as by providing a time offset value and resource index that identifies the resources.

公开(公告)号：US11800595B2

公开(公告)日：2023-10-24

申请号：US17243498

申请日：2021-04-28

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W76/28 ,  H04L1/1812 ,  H04W92/00

CPC classification number: H04W76/28 ,  H04L1/1812 ,  H04W92/00

Abstract: Wireless communications systems and methods related to discontinuous reception (DRX) extended-on operations and dynamic transmission patterns in sidelink are provided. A first user equipment (UE) determines a transmission pattern for a first sidelink based on an extended DRX on-duration associated with a second sidelink different from the first sidelink, wherein the first sidelink is between the first UE and a second UE, and wherein the second sidelink is between the second UE and a third UE. The first UE transmits, to the second UE over the first sidelink during the extended DRX on-duration based on the transmission pattern, a communication signal.

公开(公告)号：US11723039B2

公开(公告)日：2023-08-08

申请号：US17192767

申请日：2021-03-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/23 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/044 ,  H04W76/27 ,  H04W80/02

CPC classification number: H04W72/23 ,  H04W72/02 ,  H04W72/046 ,  H04W72/0446 ,  H04W72/0453 ,  H04W76/27 ,  H04W80/02

Abstract: Aspects presented herein may enable a base station to configure constraints on one or more transmission directions of a UE to reduce interference between UEs. In one aspect, a UE receives, from a base station, a grant for time-frequency resources for transmitting to a second UE, the grant including information indicating at least one of a first subset of beams of a set of beams for which the grant applies or a second subset of beams of the set of beams for which the grant applies with a constrained transmission power. The UE transmits, to the second UE, a PSSCH through at least one beam of the first subset of beams based on the received grant, or through at least one beam of the second subset of beams with the constrained transmission power based on the received grant.

公开(公告)号：US11722254B2

公开(公告)日：2023-08-08

申请号：US16746415

申请日：2020-01-17

Applicant: QUALCOMM incorporated

Inventor： Seyed Ali Akbar Fakoorian ,  Jing Sun ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Srinivas Yerramalli

IPC: H04L1/18 ,  H04L1/1812 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04L1/1812 ,  H04W72/21 ,  H04W72/23

Abstract: A method, an apparatus, a base station, and a user equipment (UE) for wireless communication are provided to reduce the retransmission latency for URLLC communications. Upon receiving a downlink data transmission, a UE waits until it completes decoding of the received downlink data transmission before it can send an ACK/NAK report on the decoded downlink data transmission. In case of a decoding failure, the base station cannot start retransmission until the UE finishes the decoding of the downlink data transmission and sends the ACK/NAK report and until the base station finishes decoding of an NAK in the ACK/NAK report. This considerable retransmission latency may not meet stringent latency requirements of some URLLC applications. A two-stage ACK/NAK reporting is disclosed to reduce the retransmission latency where the UE sends an early ACK/NAK report upon partially completing the decoding of the downlink data transmission.

公开(公告)号：US11665583B2

公开(公告)日：2023-05-30

申请号：US17249409

申请日：2021-03-01

Applicant: QUALCOMM INCORPORATED

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

IPC: H04W28/02 ,  H04B7/0456 ,  H04B7/06 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/1263 ,  H04W72/14 ,  H04W80/02

CPC classification number: H04W28/0278 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/0632 ,  H04W72/02 ,  H04W72/0453 ,  H04W72/1263 ,  H04W72/14 ,  H04W80/02

Abstract: Wireless communications systems and methods related to providing subchannel selection or recommendation and/or channel state information (CSI) for sidelink communications (e.g., operating in mode-1 radio resource allocation (RRA) via a buffer status report (BSR) are provided. A first user equipment (UE) transmits, to a base station (BS), a BSR indicating subchannel information associated with one or more UEs. The UE receives, from the BS in response to the BSR report, a grant for transmitting a first sidelink transmission to a second UE of the one or more UEs. The UE transmits, to the second UE based on the grant, the first sidelink transmission.

公开(公告)号：US11653386B2

公开(公告)日：2023-05-16

申请号：US17012250

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W16/14

CPC classification number: H04W74/0816 ,  H04W16/14 ,  H04W74/006

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may monitor for a transmission over a set of periodically scheduled resources (e.g., semi-persistently scheduled resources)) of a downlink shared channel in an unlicensed spectrum. The user equipment may receive the transmission, where the transmission indicates a channel access configuration (e.g., a listen-before-talk configuration) for accessing the unlicensed spectrum. In some cases, the transmission may include a medium access control (MAC) control element (MAC-CE) that indicates the channel access configuration. The transmission may additionally indicate at least one uplink channel over which the user equipment may transmit a message and/or a channel occupancy time associated with a successful acquisition of the unlicensed spectrum by the base station. The user equipment may transmit a message (e.g., an acknowledgement) based on the channel access configuration.