公开(公告)号：US11716648B2

公开(公告)日：2023-08-01

申请号：US17061543

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Kapil Gulati ,  Tien Viet Nguyen ,  Gabi Sarkis ,  Shuanshuan Wu

IPC: H04W28/02 ,  H04W24/08 ,  H04W4/40

CPC classification number: H04W28/0289 ,  H04W4/40 ,  H04W24/08

Abstract: In one aspect, a method includes determining, by a user equipment (UE), a channel busy ratio (CBR) window for a CBR measurement for one or more resources; determining, by the UE, a CBR measurement value for the CBR window and for the one or more resources; determining, by the UE, a channel occupancy ratio (CR) window based on a first number of subframes used for a history of past transmissions and based on a second number of subframes used for future planned transmissions and corresponding retransmissions; and determining, by the UE, a CR value for the CR window based on subchannels used for the one or more resources for the first number of subframes and based on subchannels estimated for the one or more resources for the second number of subframes. In another aspect, a method includes determining a CR window based on a CBR measurement value.

公开(公告)号：US11690127B2

公开(公告)日：2023-06-27

申请号：US17582917

申请日：2022-01-24

Applicant: QUALCOMM Incorporated

Inventor： Hong Cheng ,  Arjun Bharadwaj ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Zhibin Wu ,  Junyi Li ,  Shailesh Patil

IPC: H04W76/23 ,  H04W36/00 ,  H04W4/40 ,  H04W92/10 ,  H04W92/18

CPC classification number: H04W76/23 ,  H04W4/40 ,  H04W36/03 ,  H04W92/10 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. The method, system, and apparatus may include managing the operation mode of a user equipment in vehicle-to-everything communication. In some aspects, a user equipment may transmit an inactive request message (or a request message) to a base station to indicate the user equipment is switching from a base station scheduling mode (or a radio access network node scheduling mode) to a peer user equipment scheduling mode (or a roadside unit scheduling mode). The user equipment may receive an acknowledgment message from the base station indicating a state change to allow the peer user equipment scheduling mode. In some cases, the user equipment may receive an area identifier from the base station, and the area identifier may indicate an area where the peer user equipment scheduling mode is allowed.

公开(公告)号：US11678392B2

公开(公告)日：2023-06-13

申请号：US17202840

申请日：2021-03-16

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Kapil Gulati ,  Tien Viet Nguyen ,  Sudhir Kumar Baghel ,  Shailesh Patil

IPC: H04W76/19 ,  H04W72/0446 ,  H04L1/00 ,  H04W72/02 ,  H04W72/20 ,  H04W92/18

CPC classification number: H04W76/19 ,  H04L1/0063 ,  H04W72/02 ,  H04W72/0446 ,  H04W72/20 ,  H04W92/18

Abstract: Certain aspects of the present disclosure provide techniques for recovering a sidelink communication. A wireless node may receive a plurality of sidelink communications, each sidelink communication between two user equipments (UEs); and transmit recovery information in a recovery slot, wherein the recovery information is for recovery of at least one of the sidelink communications by the two UEs or other UEs that transmitted when at least one of the sidelink communications occurred and wherein the recovery slot is for transmission of the recovery information.

公开(公告)号：US20230156860A1

公开(公告)日：2023-05-18

申请号：US18154672

申请日：2023-01-13

Applicant: QUALCOMM Incorporated

Inventor： Zhibin Wu ,  Hong Cheng ,  Kapil Gulati ,  Tien Viet Nguyen ,  Junyi Li ,  Sudhir Kumar Baghel

IPC: H04W76/28 ,  H04W28/02 ,  H04W4/40 ,  H04W76/27 ,  H04W24/08

CPC classification number: H04W76/28 ,  H04W28/0268 ,  H04W4/40 ,  H04W76/27 ,  H04W24/08 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) of a group of UEs may receive, from a group member of the group of UEs, traffic information including a transmission schedule associated with traffic of the group member UE. The UE may determine a discontinuous reception configuration for the group of UEs based at least in part on the transmission schedule. The discontinuous reception configuration may include a discontinuous reception schedule for the group of UEs. The UE may transmit, to the group of UEs, the discontinuous reception configuration.

公开(公告)号：US11647517B2

公开(公告)日：2023-05-09

申请号：US17152578

申请日：2021-01-19

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Sudhir Kumar Baghel ,  Tien Viet Nguyen ,  Gabi Sarkis ,  Sourjya Dutta ,  Shailesh Patil

IPC: H04W72/10 ,  H04W72/23 ,  H04B17/318 ,  H04W92/18

CPC classification number: H04W72/23 ,  H04B17/318 ,  H04W92/18

Abstract: An apparatus receives, in a transmission from a second UE, an indication of reserved resources for the second UE. The apparatus measures a received power of the transmission from the second UE. The apparatus excludes the reserved resources indicated by the second UE from a set of candidate resources based on the received power of the transmission from the second UE meeting a threshold, where the threshold is based at least in part on whether the reserved resources are associated with a retransmission.

公开(公告)号：US11638273B2

公开(公告)日：2023-04-25

申请号：US16787981

申请日：2020-02-11

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet Nguyen ,  Arjun Bharadwaj ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Junyi Li

IPC: H04W28/08 ,  H04W72/12 ,  H04W72/0446 ,  H04W74/08 ,  H04W52/02 ,  H04L12/413

Abstract: Aspects described herein relate to managing coexistence of multiple radio access technology (RAT) components in a device. Information related to an upcoming time period can be sent to a first radio access technology (RAT) component from a second RAT component. The first RAT component can select a resource to transmit a first RAT packet to minimize collision with the upcoming time period of the second RAT.

公开(公告)号：US11627499B2

公开(公告)日：2023-04-11

申请号：US17031371

申请日：2020-09-24

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Kapil Gulati ,  Tien Viet Nguyen ,  Shuanshuan Wu ,  Sudhir Kumar Baghel

IPC: H04W28/26 ,  H04W72/0446 ,  H04W72/02 ,  H04W92/18

Abstract: Certain aspects of the present disclosure provide techniques for managing resource reservations in sidelink communications. A method that may be performed by a first user equipment (UE) includes determining a plurality of resource reservations allocated for sidelink communications with at least one second UE and transmitting, to the at least one second UE, control information having an indication of the resource reservations. The method also includes communicating with the at least one second UE during at least one of the resource reservations and determining that a remaining set of the resource reservations is enabled to be reclaimed by one or more UEs. The method further includes taking one or more actions based on the determination that the remaining set of the resource reservations is enabled to be reclaimed by the one or more UEs.

公开(公告)号：US20230094951A1

公开(公告)日：2023-03-30

申请号：US18074299

申请日：2022-12-02

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Shuanshuan Wu ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Shailesh Patil

IPC: H04L5/00 ,  H04W4/40 ,  H04W64/00

Abstract: Methods, systems, and devices for wireless communications (e.g., vehicle to everything systems) are described relating to an adaptive design of demodulation reference signals (DMRS) density based on user equipment (UE) velocity. A UE may send assistance information to a transmitting UE to help identify a DMRS pattern based on the relative speed between the two UEs. Also, the transmitter may determine the adaptive DMRS pattern based on its speed without information of the receiver's speed. The transmitter may indicate the adaptive DMRS pattern in control information to the receiver. A base station may receive assistance information, and the base station may determine the adaptive DMRS pattern to be used by the transmitting UE based on the received assistance information and then indicate the adaptive DMRS pattern to the transmitting UE. A UE may determine an adaptive DMRS pattern to use based on feedback from the receiving UE.

公开(公告)号：US11616626B2

公开(公告)日：2023-03-28

申请号：US17165140

申请日：2021-02-02

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan Wu ,  Kapil Gulati ,  Gabi Sarkis ,  Sudhir Kumar Baghel

IPC: H04L5/00 ,  H04W72/04 ,  H04W92/18 ,  H04L1/00 ,  H04W72/0446

Abstract: Methods, systems, and devices for sidelink wireless communications are described in which a transmitting device may determine a transport block size (TBS) for a sidelink data channel transmission and provide an indication in in sidelink control information (SCI) to allow a receiving device to determine the TBS to be used for decoding the sidelink communication. The indication provided in the SCI may be an explicit indication in an information element that indicates whether feedback channel resources are included or excluded when determining a number of symbols for use in a TBS determination. The indication provided in the SCI may also be an implicit indication based on one or more values of one or more parameters provided in the SCI. The sidelink communications devices may determine a same TBS across multiple instances of a sidelink data channel transmission that may be transmitted using slots having different slot formats.

公开(公告)号：US11611910B2

公开(公告)日：2023-03-21

申请号：US17124335

申请日：2020-12-16

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet Nguyen ,  Gabi Sarkis ,  Kapil Gulati ,  Sudhir Kumar Baghel

IPC: H04W72/04 ,  H04W28/26 ,  H04W72/0446 ,  H04W72/02 ,  H04W92/18

Abstract: In an aspect, the present disclosure includes a method, apparatus, and computer readable medium for wireless communications for receiving, by a first user equipment (UE) from one or more second UEs via a control channel, one or more reserved resources in time associated with any of the one or more second UE; determining, by the first UE, one or more transmission resources to reserve based on the one or more reserved resources in time; and transmitting, by the first UE to the one or more second UEs, data using the one or more reserved transmission resources.