公开(公告)号：US20230299912A1

公开(公告)日：2023-09-21

申请号：US18321866

申请日：2023-05-23

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Kapil GULATI ,  Alexandros MANOLAKOS ,  Shuanshuan WU ,  Sudhir Kumar BAGHEL ,  Tien Viet NGUYEN

IPC: H04L5/00 ,  H04L5/02 ,  H04W72/1263 ,  H04W72/20

CPC classification number: H04L5/0048 ,  H04L5/0023 ,  H04L5/023 ,  H04W72/1263 ,  H04W72/20

Abstract: Certain aspects of the present disclosure provide techniques for channel estimation for two-stage sidelink control using sidelink data channel demodulation reference signals (DMRS). A user equipment (UE) can transmit DMRS for the sidelink data channel. The UE may transmit the second stage of the sidelink control using antenna ports or a precoder used for the sidelink data channel. The receiving device may receive the DMRS, estimate the channel, and demodulate the second stage of the sidelink control based on the estimated channel. The receiving device may flexibly determine the DMRS to use for the estimation and demodulation.

公开(公告)号：US20230292352A1

公开(公告)日：2023-09-14

申请号：US17654675

申请日：2022-03-14

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Junyi LI ,  Kapil GULATI

IPC: H04W72/08 ,  H04W72/04 ,  H04W24/10 ,  H04W28/26 ,  H04B17/318

CPC classification number: H04W72/082 ,  H04W72/044 ,  H04W24/10 ,  H04W28/26 ,  H04B17/318

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may obtain an indication of an overlap between a plurality of sidelink communications. The mobile station may detect a conflict between the plurality of sidelink communications having the overlap based at least in part on whether the plurality of sidelink communications are intended for an interference cancellation capable receiver mobile station. Numerous other aspects are described.

公开(公告)号：US20230276494A1

公开(公告)日：2023-08-31

申请号：US18015302

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Sourjya DUTTA ,  Hui GUO ,  Kapil GULATI ,  Junyi LI ,  Gabi SARKIS

IPC: H04W74/08 ,  H04W72/563

CPC classification number: H04W74/0808 ,  H04W72/563 ,  H04B17/318

Abstract: Aspects presented herein improve congestion control mechanism for UEs with multiple TRPs, where at least one of the SL RSSI measurement, the CBR measurement, the CR evaluation and/or the congestion control mechanism for the UE is optimized. In one aspect, the apparatus evaluates a CR for each TRP of a plurality of TRPs at the UE. The apparatus determines whether the UE is allowed to transmit on one or more of the TRPs of the plurality of TRPs based at least on the evaluated CR for each TRP of the plurality of TRPs and on at least one CR limit. The apparatus transmits on at least one TRP of the one or more of the TRPs based on the determination whether to transmit on the one or more TRPs.

公开(公告)号：US20230276402A1

公开(公告)日：2023-08-31

申请号：US17652584

申请日：2022-02-25

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Kapil GULATI ,  Junyi LI ,  Sourjya DUTTA ,  Anantharaman BALASUBRAMANIAN

IPC: H04W64/00 ,  H04L43/0864

CPC classification number: H04W64/003 ,  H04L43/0864

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a road-side unit (RSU) may join a first sidelink (SL) ranging session between a first user equipment (UE) and a second UE. The RSU may perform SL ranging with the first UE to determine first ranging information comprising at least a RTT to the first UE. The RSU may perform SL ranging with the second UE to determine second ranging information comprising at least a RTT to the second UE. The RSU may send the first ranging information and the second ranging information to at least one of the first UE or the second UE, or calculate a range between the first UE and the second UE based on the first ranging information and the second ranging information, and send the range to at least one of the first UE and the second UE.

公开(公告)号：US20230247590A1

公开(公告)日：2023-08-03

申请号：US18000151

申请日：2021-07-26

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Gabi SARKIS ,  Parisa CHERAGHI ,  Arthur GUBESKYS ,  Tien Viet NGUYEN ,  Stelios STEFANATOS ,  Kapil GULATI

IPC: H04W72/04 ,  H04W74/08 ,  H04W72/566 ,  H04L1/1812

CPC classification number: H04W72/04 ,  H04L1/1812 ,  H04W72/569 ,  H04W74/0825

Abstract: Certain aspects of the present disclosure provide techniques for resource allocation with collision indication for sidelink communication. A method that may be performed by a first user equipment (UE) includes receiving a first sidelink transmission from a second UE indicating a first resource reservation; receiving a second sidelink transmission from a third UE indicating a second resource reservation; and transmitting, to at least the second UE, feedback comprising: hybrid automatic retransmission request (HARQ) feedback regarding the first sidelink transmission; and an indication of whether a collision is detected by the first UE between the first resource reservation and the second resource reservation.

公开(公告)号：US20230224855A1

公开(公告)日：2023-07-13

申请号：US18184781

申请日：2023-03-16

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman BALASUBRAMANIAN ,  Junyi LI ,  Shuanshuan WU ,  Gabi SARKIS ,  Sudhir Kumar BAGHEL ,  Kapil GULATI

IPC: H04W68/00 ,  H04W74/08 ,  H04W64/00

CPC classification number: H04W68/005 ,  H04W74/0808 ,  H04W72/044 ,  H04W64/00

Abstract: Certain aspects of the present disclosure provide a method for wireless communications between a first UE and a second UE. The method includes, at the first UE, receiving, from the second UE, a paging indication message on a sidelink channel, the paging indication message associating the first UE with one or more resources of a common resource pool that includes a plurality of resources for communication on the sidelink channel. The method further includes, based on the received paging indication message, monitoring the one or more resources for a message from the second UE.

公开(公告)号：US20230209579A1

公开(公告)日：2023-06-29

申请号：US18171733

申请日：2023-02-21

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho RYU ,  Kapil GULATI ,  Junyi LI ,  Sony AKKARAKARAN ,  Tao LUO

IPC: H04W72/52 ,  H04W8/26 ,  H04W24/10 ,  H04W72/044 ,  H04W72/20

CPC classification number: H04W72/52 ,  H04W8/26 ,  H04W24/10 ,  H04W72/046 ,  H04W72/20 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may measure a per-beam channel busy ratio (CBR) for each of one or more beams configured on the sidelink receiver for transmitting or receiving sidelink transmissions including a first CBR for a first beam that is to be used for receiving a sidelink transmission transmitted by a first sidelink transmitter; and may transmit an indication of the per-beam CBR. In some aspects, a user equipment may receive information associated with a per-beam CBR including a first CBR for a first beam to be used by a sidelink receiver for receiving a sidelink transmission transmitted by the sidelink transmitter, and may selectively transmit the sidelink transmission for reception by the sidelink transmitter using the first beam based at least in part on the indication of the per-beam CBR. Numerous other aspects are provided.

公开(公告)号：US20230199874A1

公开(公告)日：2023-06-22

申请号：US17995973

申请日：2021-03-01

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Stelios STEFANATOS ,  Arthur GUBESKYS ,  Kapil GULATI

IPC: H04W76/14 ,  H04W72/40

CPC classification number: H04W76/14 ,  H04W72/40

Abstract: Certain aspects of the present disclosure provide techniques for carrier selection for sidelink communications in an unlicensed spectrum. A method that may be performed by a first sidelink user equipment (UE) includes determining one or more carriers, from a set of configured carriers, in an unlicensed spectrum to use for communicating with a second sidelink UE and communicating with the second sidelink UE using the determined one or more carriers.

公开(公告)号：US20230189063A1

公开(公告)日：2023-06-15

申请号：US18167389

申请日：2023-02-10

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar BAGHEL ,  Junyi LI ,  Shailesh PATIL ,  Kapil GULATI ,  Wanshi CHEN ,  Arjun BHARADWAJ

IPC: H04W28/02 ,  H04W40/12 ,  H04W74/08 ,  H04W76/27 ,  H04W72/044 ,  H04W74/00 ,  H04W72/56

CPC classification number: H04W28/0289 ,  H04W28/0268 ,  H04W40/12 ,  H04W72/044 ,  H04W72/56 ,  H04W74/002 ,  H04W74/0808 ,  H04W76/27

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device may iterate a value of a channel access counter (CAC) to a trigger value based at least in part on configuring the value of the CAC. In some aspects, the first wireless communication device may utilize a channel access mechanism to select a set of time-frequency resources for a transmission of a packet based at least in part on iterating the value of the CAC to the trigger value. In some aspects, the first wireless communication device may transmit the packet to a second wireless communication device via the set of time-frequency resources based at least in part on utilizing the channel access mechanism to select the set of time-frequency resources for the transmission. Numerous other aspects are provided.

公开(公告)号：US20230171068A1

公开(公告)日：2023-06-01

申请号：US18041382

申请日：2021-10-05

Applicant: QUALCOMM Incorporated

Inventor： Chang-Sik CHOI ,  Stelios STEFANATOS ,  Shuanshuan WU ,  Kapil GULATI

IPC: H04L5/00 ,  H04W74/08

CPC classification number: H04L5/0051 ,  H04W74/0816 ,  H04W74/085

Abstract: Aspects relate to group-based reference signal broadcast in a wireless communication network. A first wireless communication device may transmit a first group formation broadcast message associated with a first positioning group comprising a first plurality of wireless communication devices including the first wireless communication device. The first wireless communication device may receive a second group formation broadcast message associated with a second positioning group comprising a second plurality of wireless communication devices including a second wireless communication device. The second positioning group may be associated with a channel occupancy time (CoT) in a sidelink channel. The CoT may comprise transmission opportunities configured to be used by the second plurality of wireless communication devices for communicating reference signals. The first wireless communication device may initiate transmission of reference signals by the first plurality of wireless communication devices using additional transmission opportunities within the CoT associated with the second positioning group.