公开(公告)号：US20220159428A1

公开(公告)日：2022-05-19

申请号：US17098882

申请日：2020-11-16

Applicant: QUALCOMM Incorporated

Inventor： Chang-Sik CHOI ,  Kapil GULATI ,  Sudhir Kumar BAGHEL

IPC: H04W4/40 ,  H04W72/04

Abstract: Techniques described herein provide for the efficient usage of an RF channel for PRS transmissions by performing LBT sensing for a group of one or more vehicles (e.g., V2X vehicles) in a predetermined area by using an RSU. The RSU can determine a sequence in which an order for each vehicle in the group to transmit a respective PRS is defined, and provide the sequence to the group. The RSU may further perform the LBT functionality by listening to availability on the RF channel and, when the channel becomes available, the RSU can initiate this sequence by sending an initial PRS. This LBT sensing for a group can provide far more efficient usage of the RF channel than if LBT functionality were performed by each divisional vehicle.

公开(公告)号：US20220150943A1

公开(公告)日：2022-05-12

申请号：US17451543

申请日：2021-10-20

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Kapil GULATI ,  Hua WANG ,  Sony AKKARAKARAN

IPC: H04W72/12

Abstract: Aspects of the present disclosure provide apparatus, methods, processing systems, and computer-readable mediums for determining timing advances (TAs) for use in sidelink (SL) communications. A method that may be performed by a receiver (RX) user equipment (UE) includes receiving, from a network entity, an indication of a TA for SL communications with a first transmitter (TX) UE and applying the indicated TA when receiving at least one SL transmission from the first TX UE.

公开(公告)号：US20220128648A1

公开(公告)日：2022-04-28

申请号：US16949340

申请日：2020-10-26

Applicant: QUALCOMM Incorporated

Inventor： Junyi LI ,  Dan ZHANG ,  Kapil GULATI

IPC: G01S7/00 ,  G01S7/35

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a radar device may process a transmitted radar signal and a received radar signal to obtain at least one energy level measurement. The radar device may determine that the at least one energy level measurement satisfies a threshold value. The radar device may perform a listen before talk procedure based at least in part on determining that the at least one energy level measurement satisfies the threshold value. Numerous other aspects are provided.

公开(公告)号：US20220124561A1

公开(公告)日：2022-04-21

申请号：US17410435

申请日：2021-08-24

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan WU ,  Kapil GULATI ,  Tien Viet NGUYEN ,  Gabi SARKIS

IPC: H04W28/26 ,  H04W72/04 ,  H04W80/02

Abstract: Certain aspects of the present disclosure provide techniques for enhanced resource reservation for sidelink communication. A method that may be performed by a transmitter user equipment (UE) includes transmitting a transport block (TB) in a first slot of a current reservation period, wherein the transmission of the TB reserves a future resource in the current reservation period for retransmission of the TB, indicating, when transmitting the TB, a period to periodically reserve one or more resources, in one or more future reservation periods, for transmissions of one or more other TBs, and taking action to limit or release a number of the one or more resources periodically reserved in the one or more future reservation periods for the transmissions of the one or more other TBs.

公开(公告)号：US20220124018A1

公开(公告)日：2022-04-21

申请号：US17446911

申请日：2021-09-03

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet NGUYEN ,  Sourjya OUTTA ,  Gabi SARKIS ,  Kapil GULATI

IPC: H04L12/26 ,  H04W24/08 ,  H04L12/18 ,  H04L5/00 ,  H04W72/04 ,  H04L1/18

Abstract: Apparatus, methods, and computer-readable media for acknowledgment feedback for groupcast option 1 sidelink communication are disclosed herein. An example method of wireless communication at a receiving user equipment (UE) includes determining whether a data signal associated with a groupcast transmission from a transmitting UE is decodable at the receiving UE and obtaining measurements of the data signal when the data signal is decodable at the receiving UE. The example method also includes determining whether the measurements exceed a threshold and transmitting a first type of feedback to the transmitting UE when the measurements do not exceed the threshold. An example method of wireless communication at a transmitting UE includes receiving, from a receiving UE over a sidelink channel, feedback comprising the first type of feedback when the first UE is determined to monitor for the first type of feedback and a second type of feedback from a plurality of UEs.

公开(公告)号：US20220109484A1

公开(公告)日：2022-04-07

申请号：US17061280

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Chang-Sik CHOI ,  Shuanshuan WU ,  Kapil GULATI ,  Anantharaman BALASUBRAMANIAN

IPC: H04B7/06 ,  H04W74/08 ,  H04B7/0408

Abstract: Certain aspects of the present disclosure provide techniques for grouping devices to reduce latency in round trip time based millimeter wave positioning. A method that may be performed by a wireless device includes obtaining a status, of the wireless device, within a group including the wireless device, wherein the group comprises a group owner (GO) of the group and one or more members of the group; and participating in a positioning procedure that estimates a position of at least one of the GO or the one or more members according to the status of the wireless device.

公开(公告)号：US20220091227A1

公开(公告)日：2022-03-24

申请号：US17447730

申请日：2021-09-15

Applicant: QUALCOMM Incorporated

Inventor： Dan ZHANG ,  Kapil GULATI ,  Junyi LI

IPC: G01S7/02 ,  H04J3/02 ,  H04W4/40 ,  G01S7/00 ,  G01S13/931

Abstract: Aspects of the present disclosure may reduce number of radar transmissions between a group of wireless devices while still enabling wireless devices with accurate radar measurements on a target object. In one aspect, a first wireless device receives a first radar-detection information from a second wireless device. The first wireless device transmits one or more radar pulses based at least in part on a radar transmission order being based on the first radar-detection information. In another aspect, a UE receives radar-detection information from multiple wireless devices. The UE transmits a radar transmission order to the multiple wireless devices based on the radar-detection information.

公开(公告)号：US20220086700A1

公开(公告)日：2022-03-17

申请号：US17135743

申请日：2020-12-28

Applicant: QUALCOMM Incorporated

Inventor： Tien Viet NGUYEN ,  Sourjya DUTTA ,  Kapil GULATI ,  Gabi SARKIS ,  Shailesh PATIL

IPC: H04W28/26 ,  H04W72/02 ,  H04W4/40 ,  H04W24/10 ,  H04B17/318

Abstract: To facilitate coexistence of a first radio access technology (RAT) and a second RAT, methods, apparatuses, and computer program products are provided. An example method of a first wireless device operating based on a RAT includes receiving a sidelink resource reservation from a second wireless device based on a second RAT, the sidelink resource reservation indicating a first set of resources. The example method further includes determining whether to exclude, from a candidate resource set for the first RAT within a sidelink resource pool for the first RAT, resources that overlap with the set of reserved resources for the second RAT. The example method further includes transmitting a sidelink transmission using one or more sidelink transmission resources selected from the candidate resource set in the sidelink resource pool for the first RAT.

公开(公告)号：US20220078581A1

公开(公告)日：2022-03-10

申请号：US17446802

申请日：2021-09-02

Applicant: QUALCOMM Incorporated

Inventor： Chang-Sik CHOI ,  Kapil GULATI ,  Junyi LI ,  Piyush GUPTA

IPC: H04W4/029 ,  H04W4/44 ,  H04L5/00 ,  G01S5/12

Abstract: Certain aspects of the present disclosure provide techniques for improving positioning accuracy of user equipments (UEs) using non line-of-sight (NLOS) positioning reference signals (PRS) and map information. A method that may be performed by a UE includes obtaining map information regarding, at least, one or more reflectors in an environment including at least the UE and another node, detecting at least one positioning reference signal (PRS) transmission that travels one or more non line-of-sight (NLOS) transmission paths in the environment, and participating in a positioning procedure that estimates a position of the UE based, at least in part, on the at least one PRS transmission that travels the one or more NLOS transmission paths and the map information.

公开(公告)号：US20220070799A1

公开(公告)日：2022-03-03

申请号：US17408288

申请日：2021-08-20

Applicant: QUALCOMM Incorporated

Inventor： Hua WANG ,  Sony AKKARAKARAN ,  Kapil GULATI ,  Tao LUO ,  Junyi LI

IPC: H04W56/00 ,  H04W72/04 ,  H04J13/00

Abstract: Aspects presented herein relate to methods and devices for wireless communication including an apparatus, e.g., a UE. In some aspects, the apparatus may determine a timing synchronization procedure with at least one sidelink UE. The apparatus may also configure a timing synchronization signal associated with the timing synchronization procedure, the timing synchronization signal including at least one of a signal bandwidth or a signal location. The apparatus may also transmit, to the at least one sidelink UE, the timing synchronization signal associated with the timing synchronization procedure.