公开(公告)号：US11937227B2

公开(公告)日：2024-03-19

申请号：US17195204

申请日：2021-03-08

Applicant: QUALCOMM Incorporated

Inventor： Hua Wang ,  Junyi Li ,  Piyush Gupta

IPC: H04W72/12 ,  H04W72/0453 ,  H04W72/20

CPC classification number: H04W72/12 ,  H04W72/0453 ,  H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive, from a base station, a configuration indicating a set of occasions configured for sidelink communications for the UE. The sidelink communications may include at least one of sidelink traffic, semi-persistent scheduling traffic, or a combination thereof. The UE may receive a control indication associated with a radio network temporary identifier. The control indication may include a downlink control information. In some examples, the UE may skip a first pre-scheduled occasion of the set of occasions configured for sidelink communications based on the control indication, and may perform sidelink communications during a second pre-scheduled occasion of the set of occasions after skipping the first pre-scheduled occasion.

公开(公告)号：US11917605B2

公开(公告)日：2024-02-27

申请号：US17087755

申请日：2020-11-03

Applicant: QUALCOMM Incorporated

Inventor： Lik Hang Silas Fong ,  Hua Wang ,  Piyush Gupta ,  Junyi Li

IPC: H04W72/121 ,  H04W76/11 ,  H04W24/08 ,  H04L1/00 ,  H04L5/00 ,  H04W72/23 ,  H04W72/50 ,  H04W92/18

CPC classification number: H04W72/121 ,  H04L1/0003 ,  H04L1/0061 ,  H04L5/0055 ,  H04W24/08 ,  H04W72/23 ,  H04W72/535 ,  H04W76/11 ,  H04W92/18

Abstract: Certain aspects of the present disclosure provide techniques for uplink transmissions through sidelinks for multi-path diversity. A method that may be performed by a base station (BS) includes configuring one or more groups of user equipments (UEs) of a group of UEs with a configuration of one or more resources. The one or more resources includes one or more sidelink channels between each of the UEs in the group of UEs and an uplink channel between the BS and each of the UEs in the group of UEs. The BS receives data from at least one UE in the group of UEs via at least one of the uplink channels, wherein the data is associated with a different UE.

公开(公告)号：US11910359B2

公开(公告)日：2024-02-20

申请号：US17484117

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04L1/1867 ,  H04W72/0453 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/20

CPC classification number: H04W72/02 ,  H04L1/1896 ,  H04W24/08 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/20

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a first sidelink control information (SCI) message during a mini-slot of a control resource pool which is decoupled from a data resource pool for sidelink communications. The first SCI message may indicate a data message to be transmitted on a subchannel of the data resource pool to a second UE, where resources between the control resource pool and the data resource pool are mapped. The UE may receive a feedback message from the second UE for the first SCI message during a second mini-slot of the control resource pool. The feedback message may indicate whether a collision or strong interference was detected for the first SCI message. The UE may determine whether to transmit the data message or retransmit the first SCI message based on the feedback message.

公开(公告)号：US11894888B2

公开(公告)日：2024-02-06

申请号：US17167607

申请日：2021-02-04

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Junyi Li ,  Juan Montojo ,  Jing Sun ,  Arumugam Chendamarai Kannan ,  Xiaoxia Zhang ,  Peter Gaal ,  Piyush Gupta ,  Xiaojie Wang ,  Hua Wang ,  Jelena Damnjanovic

IPC: H04B7/0408 ,  H04W24/08 ,  H04W92/18

CPC classification number: H04B7/0408 ,  H04W24/08 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure, for a first beam group of a set of beam groups associated with the UE, a first channel busy ratio (CBR) for the first beam group. The UE may receive, from a second UE, an indication of a second CBR for a second beam group associated with the second UE. The UE may transmit, to the second UE using a beam included in the first beam group, a signal using one or more transmit parameters that are based at least in part on at least one of the first CBR or the second CBR. Numerous other aspects are described.

公开(公告)号：US11888778B2

公开(公告)日：2024-01-30

申请号：US17453714

申请日：2021-11-05

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Sony Akkarakaran ,  Tao Luo ,  Junyi Li ,  Peter Gaal ,  Xiaojie Wang ,  Tianyang Bai ,  Juan Montojo ,  Wooseok Nam ,  Yan Zhou ,  Xiaoxia Zhang ,  Jing Sun ,  Piyush Gupta ,  Hua Wang ,  Mahmoud Taherzadeh Boroujeni

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0023

Abstract: In some aspects of the disclosure, an apparatus for wireless communication includes a receiver and a transmitter. The transmitter is configured to transmit a first transmission during a first time slot and to transmit a second transmission during a second time slot that is after the first time slot. The first transmission includes first data and a first demodulation reference signal (DMRS) associated with the first data, and the second transmission includes second data and a second DMRS associated with the second data. One or more of the first transmission or the second transmission further includes an indication of whether a joint channel estimation operation is to be performed based on the first DMRS and the second DMRS.

公开(公告)号：US11876628B2

公开(公告)日：2024-01-16

申请号：US17157575

申请日：2021-01-25

Applicant: QUALCOMM Incorporated

Inventor： Hua Wang ,  Piyush Gupta ,  Junyi Li ,  Lik Hang Silas Fong

IPC: H04L1/1867 ,  H04W24/08 ,  H04B17/336 ,  H04W72/20 ,  H04W92/18

CPC classification number: H04L1/1896 ,  H04B17/336 ,  H04W24/08 ,  H04W72/20 ,  H04W92/18

Abstract: Certain aspects of the present disclosure provide techniques for a fallback retransmission for a sidelink. A method that may be performed by a user equipment (UE) includes monitoring a transmission from a node. The UE can determine that the transmission was not successfully decoded. The UE can send a feedback message to the node indicating that the transmission was not successfully decoded. The feedback message can also include an indication of whether the node or a base station (BS) retransmits the transmission. The node retransmits the transmission or indicates to the BS to retransmit based on the feedback message. The BS can configure the node, the UE, or both with one or more thresholds for determining whether the node or the BS retransmits the transmission.

公开(公告)号：US11864172B2

公开(公告)日：2024-01-02

申请号：US17110184

申请日：2020-12-02

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Yisheng Xue ,  Jing Sun ,  Junyi Li ,  Piyush Gupta ,  Xiaoxia Zhang ,  Ozcan Ozturk

IPC: H04W72/12 ,  H04L5/16 ,  H04W92/18 ,  H04W72/1263 ,  H04W72/20

CPC classification number: H04W72/1263 ,  H04W72/20 ,  H04L5/16 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described to support half-duplex-aware resource selection in sidelink. A physical (PHY) layer at a user equipment (UE) may report available resources to a medium access control (MAC) layer excluding some resources on which the UE is scheduled to receive or other UEs are scheduled to transmit. Specifically, the PHY layer may exclude resources on which the UE is scheduled to receive from a set of resources available for a sidelink transmission from the UE. Similarly, the PHY layer at the UE may exclude resources on which other UEs are scheduled to transmit from a set of resources available for a sidelink transmission to those UEs. A MAC layer at the UE may indicate to the PHY layer (e.g., directly or indirectly) the resources to be excluded when reporting available resources.

公开(公告)号：US20230422258A1

公开(公告)日：2023-12-28

申请号：US17851683

申请日：2022-06-28

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Piyush Gupta ,  Junyi Li

IPC: H04W72/14 ,  H04W72/12 ,  H04W16/28

CPC classification number: H04W72/14 ,  H04W72/1278 ,  H04W16/28 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may transmit to a network entity a first signal requesting a modification of allocated resources for sidelink transmission, sidelink reception, or both based on multiple transport blocks (TBs) for communication for the UE. The UE may receive, from the network entity, a downlink control information (DCI) signal granting one or more resources to the UE for sidelink communications based on the first signal. In some cases, the DCI signal may dynamically or periodically grant one or more resources for sidelink transmission, one or more resources for sidelink reception, or both for the UE. The UE may use the granted resources to communicate multiple TBs with one or more other UEs based on the DCI signal. For example, a single DCI message may allocate resources for sidelink communication of multiple TBs.

公开(公告)号：US11832252B2

公开(公告)日：2023-11-28

申请号：US17385321

申请日：2021-07-26

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/20 ,  H04W72/1263 ,  H04W72/25

CPC classification number: H04W72/20 ,  H04W72/1263 ,  H04W72/25

Abstract: Aspects of the present disclosure provide techniques that help reducing transmission overhead related to sidelink control information (SCI). For example, when a transmitter UE has established a sidelink communication with a receiver UE, the transmitter UE may schedule with at least one semi-persistent scheduling (SPS) process at a first time interval. The transmitter UE may sense whether a resource is available for transmissions to the receiver UE based on decoding an SCI, such as an SCI 0-1 message. The SCI is transmitted at a second time interval that is greater than the first time interval. For example, the second time interval may be a multiple of the first time interval of the at least one SPS process. The second time interval may be flexible and may be increased to reduce the number of SCI messages transmitted in certain time periods in order to reduce communication overhead.

公开(公告)号：US11792797B2

公开(公告)日：2023-10-17

申请号：US17184055

申请日：2021-02-24

Applicant: QUALCOMM Incorporated

Inventor： Xiaojie Wang ,  Sony Akkarakaran ,  Hua Wang ,  Jing Sun ,  Juan Montojo ,  Junyi Li ,  Xiaoxia Zhang ,  Tao Luo ,  Piyush Gupta

IPC: H04W28/26 ,  H04W72/20 ,  H04W72/0446

CPC classification number: H04W72/20 ,  H04W28/26 ,  H04W72/0446

Abstract: Apparatus, methods, and computer-readable media for facilitating indicating cancelation of transmissions of sidelink messages are disclosed herein. An example method for wireless communication at a sidelink device includes transmitting SCI reserving a set of resources for one or more retransmissions of a message, the set of resources identifying one or more reserved resources in a time domain. The example method also includes identifying a skipped transmission associated with one or more of the set of resources reserved by the sidelink device. Additionally, the example method includes transmitting a cancelation indication indicating the skipped transmission, the cancelation indication indicating that the skipped transmission corresponds to a previous reserved resource in the time domain, a current reserved resource in the time domain, or a future reserved resource in the time domain.