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：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：US11638248B2

公开(公告)日：2023-04-25

申请号：US17162257

申请日：2021-01-29

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Gene Wesley Marsh ,  Shailesh Patil ,  Juan Montojo ,  Ozcan Ozturk ,  Peter Gaal

IPC: H04W72/04 ,  H04W74/08 ,  H04W72/044

Abstract: Improved communications, including indication of channel occupancy time-structure information (COT-SI) for NR-U sidelink (NR-U SL) operations is disclosed. A UE may establish a current channel occupancy time (COT) on a shared communication spectrum for UE transmissions in response to a successful listen before talk (LBT) procedure. The UE may then generates a COT structure information (COT-SI) message including at least a remaining duration of the current COT and a set of time and frequency resources of the current COT. The COT-SI message may be transmitted by the UE to one or more neighboring UEs via sidelink transmission. Once the COT-SI message is sent, the UE transmits the UE transmission within the set of time and frequency resource of the current COT.

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：US11601910B2

公开(公告)日：2023-03-07

申请号：US17369882

申请日：2021-07-07

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Dan Vassilovski ,  Shailesh Patil ,  Hong Cheng

IPC: H04W4/00 ,  H04W64/00 ,  H04W92/18

Abstract: Aspects relate to sidelink positioning using second stage sidelink control information (SCI-2). A first wireless communication device (e.g., first UE) may transmit SCI-2 including a sidelink positioning establishment message to establish a sidelink positioning session with at least a second wireless communication device (e.g., a second UE). Each of the first UE and second UE may then transmit positioning reference signals (PRSs) and generate and transmit sidelink positioning information based on the PRSs during the sidelink positioning session. The sidelink positioning information may further be transmitted via SCI-2.

公开(公告)号：US11564054B2

公开(公告)日：2023-01-24

申请号：US16861894

申请日：2020-04-29

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/02 ,  H04W4/12 ,  H04W28/02 ,  H04W72/04 ,  H04L5/00 ,  H04W4/40

Abstract: An improved manner of transmitting and receiving messages in sidelink communication is presented in which a wireless device receives sidelink control information (SCI) that indicates a zone ID associated with a sidelink message. The wireless device determines a location of the wireless device and determines whether to send feedback for the sidelink message based, at least in part, on the zone ID associated with the sidelink message and the location of the wireless device. The feedback may include hybrid automatic repeat request (HARQ) feedback, and the sidelink message may include a groupcast message. The wireless device may further receive an indication of an intended range in the SCI and may determine whether to send the feedback based on a combination of the zone ID and the intended range for the sidelink message.

公开(公告)号：US11546888B2

公开(公告)日：2023-01-03

申请号：US16827513

申请日：2020-03-23

Applicant: QUALCOMM Incorporated

Inventor： Lior Uziel ,  Shailesh Patil

IPC: H04W72/04

Abstract: A user equipment (UE) transmits a first transmission comprising first sidelink control information (SCI) using a first cyclic shift, where the first SCI includes information about a second cyclic shift of second SCI for a second transmission from the UE. The UE then transmits the second transmission comprising the second SCI using the second cyclic shift. A receiving UE receives, from a second UE, a first transmission comprising first SCI having a first cyclic shift and uses information in the first SCI to determine cyclic shift information about a second cyclic shift of second SCI for a second transmission from the UE. The receiving UE may exclude the second cyclic shift from selection using the information received in the first SCI.

公开(公告)号：US11546097B2

公开(公告)日：2023-01-03

申请号：US16578027

申请日：2019-09-20

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Kapil Gulati ,  Sudhir Kumar Baghel ,  Shailesh Patil ,  Naga Bhushan

IPC: H04L1/18 ,  H04L5/00 ,  H04L5/14

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The apparatus may receive from a second device a first data packet in one or more receiving slots of a time division duplex frame that includes a plurality of slots. The apparatus may determine whether the first data packet is received incorrectly. The apparatus may wait until the end of the one or more receiving slots and may transmit to the second device a first NACK in a NACK feedback symbol in a configured slot after the end of the one or more receiving slots in response to determining that the first data packet was not received correctly.

公开(公告)号：US20220416984A1

公开(公告)日：2022-12-29

申请号：US17823804

申请日：2022-08-31

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet Nguyen ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Arjun Bharadwaj ,  Shailesh Patil

IPC: H04L5/00 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may utilize priority levels associated with packets or transmissions to determine whether to transmit feedback for a received transmission. The UE may compare priority levels between a transmission subject to a feedback condition and a transmission scheduled to be received when the feedback is scheduled to be transmitted to determine whether to send the feedback. The UE may communicate with the transmitting device according to the comparison and the determining. The UE may determine signal conditions causing a NAK and determine to send the NAK based on the signal conditions.

公开(公告)号：US20220408452A1

公开(公告)日：2022-12-22

申请号：US17859458

申请日：2022-07-07

Applicant: QUALCOMM Incorporated

Inventor： Marco Papaleo ,  Xiao Feng Wang ,  Shailesh Patil ,  Maarten Menzo Wentink ,  James Lansford ,  Jamshid Khun-Jush

IPC: H04W72/12 ,  H04W74/08 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device that uses a first radio access technology (RAT) may identify a transmission timing scheme for a shared radio frequency spectrum band, the transmission timing scheme comprising a first set of time intervals allocated for transmissions using a first RAT and a second set of time intervals allocated for transmissions using a second RAT. The wireless device may transmit, during a time interval of the first set of time intervals, a channel reservation signal indicating an end time of the time interval and indicating that the wireless device uses the first RAT. The wireless device may transmit, based at least in part on the transmitted channel reservation signal, over the shared radio frequency spectrum band during at least a portion of the time interval before the end time of the time interval.