公开(公告)号：US11764856B2

公开(公告)日：2023-09-19

申请号：US17116608

申请日：2020-12-09

Applicant: QUALCOMM Incorporated

Inventor： Sourjya Dutta ,  Kapil Gulati ,  Hong Cheng ,  Junyi Li ,  Gabi Sarkis

IPC: H04W4/00 ,  H04B7/08 ,  H04W76/14 ,  H04L5/00 ,  H04W8/00 ,  H04W48/14

CPC classification number: H04B7/0888 ,  H04L5/0051 ,  H04W8/005 ,  H04W48/14 ,  H04W76/14

Abstract: Certain aspects of the present disclosure to techniques for sidelink re-discovery without repeating beamforming in millimeter wave (e.g., Frequency Range 2) bands. For example, a Tx UE may complete a first beam training with a Rx UE. The Tx UE may generate a discovery message that includes at least one of: an indication of a beam training reference signal (BT-RS) sequence index of the first beam training; an indication of a timer for changing the BT-RS sequence; or an indication of a second BT-RS sequence to be used by the Tx UE before an expiration of the timer. The second BT-RS sequence may be indicated as an index to a set of BT-RS sequences including the BT-RS sequence associated with the first beam training. The Tx may transmit the generated discovery message to the Rx UE.

公开(公告)号：US11758357B2

公开(公告)日：2023-09-12

申请号：US17878666

申请日：2022-08-01

Applicant: QUALCOMM Incorporated

Inventor： Chang-Sik Choi ,  Kapil Gulati ,  Sudhir Kumar Baghel ,  Junyi Li

IPC: H04W4/02 ,  H04W4/029

CPC classification number: H04W4/023 ,  H04W4/029

Abstract: A target user equipment (UE), which may be a vehicle or UE carried by a pedestrian, may receive sequentially broadcast ranging signals from a set of ranging source entities (SEs), which may be road side units or other vehicles. The target UE further receives location information separately broadcast by each SEs. The location information, for example, may include the position for the SE, the time of transmission of the ranging signals transmitted by the SE and/or a sequence identifier for the SE. The target UE may determine ranges to the SEs using time of arrival measurements for the ranging signals and the time of transmissions of the ranging signals or the sequence identifier received in the location information. The position of the target UE may be determined using the determined ranges to the SEs and the positions of the SEs received in the location information.

公开(公告)号：US11750351B2

公开(公告)日：2023-09-05

申请号：US17003496

申请日：2020-08-26

Applicant: QUALCOMM Incorporated

Inventor： Mahmoud Taherzadeh Boroujeni ,  Sony Akkarakaran ,  Tao Luo ,  Juan Montojo ,  Junyi Li ,  Jung Ho Ryu ,  Hong Cheng ,  Kapil Gulati

IPC: H04L5/00 ,  H04W92/18

CPC classification number: H04L5/0055 ,  H04W92/18

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a medium access control (MAC) control element (CE) configuration for a sidelink channel; and communicate on the sidelink channel using a MAC-CE configured according to the MAC-CE configuration. Numerous other aspects are provided.

公开(公告)号：US20230254689A1

公开(公告)日：2023-08-10

申请号：US17665203

申请日：2022-02-04

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Junyi Li ,  Hong Cheng ,  Shuanshuan Wu ,  Kapil Gulati

IPC: H04W12/041 ,  H04W24/10 ,  H04W12/03 ,  H04L9/32

CPC classification number: H04W12/041 ,  H04W24/10 ,  H04W12/03 ,  H04L9/3247

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may generate a first encryption key and a second UE may generate a second encryption key based on a measurement of a channel between the first UE and the second UE. The second UE may transmit, to the first UE, a sidelink message including a one-way digital signature generated using the second encryption key and a message from a defined set of messages. The first UE may generate a set of one-digital signatures using the first encryption key and the defined set of messages and determine whether the one-way digital signature matches one of the set of one-way digital signatures. If there is a match, the first UE and the second UE may communicate using the encryption keys. Otherwise, the first UE and the second UE may generate new encryption keys.

公开(公告)号：US11711115B2

公开(公告)日：2023-07-25

申请号：US17243296

申请日：2021-04-28

Applicant: QUALCOMM Incorporated

Inventor： Sourjya Dutta ,  Kapil Gulati ,  Shuanshuan Wu ,  Junyi Li

IPC: H04B7/01 ,  H04L5/00 ,  H04W72/0453 ,  H04W4/40 ,  H04W72/20 ,  H04W24/10 ,  H04L43/08 ,  H04B17/309 ,  H04B10/079

CPC classification number: H04B7/01 ,  H04L5/0051 ,  H04W4/40 ,  H04W72/0453 ,  H04W72/20 ,  H04B10/0795 ,  H04B17/309 ,  H04L43/08 ,  H04W24/10

Abstract: A method of wireless communication by a transmitting sidelink user equipment (UE) determines at least one quasi-co-location (QCL) relationship between antenna ports of the transmitting sidelink UE. The QCL relationship corresponds to carrier frequency offset (CFO), average delay, delay spread, Doppler shift, and/or Doppler spread across the antenna ports of the transmitting sidelink UE. Each port maps to a different transmission and reception point (TRP). The method also indicates the QCL relationship(s) to a receiving sidelink UE. A method of wireless communication by a receiving sidelink UE receives a message from TRPs of a transmitting sidelink UE. The message indicates a QCL assumption for the TRPs. The method also individually measures reference signals received from each transmission port of the TRPs. The method may also determine whether signaling from the TRPs satisfies all conditions for the QCL assumption, and report to the transmitting sidelink UE a result of the determining.

公开(公告)号：US11689892B2

公开(公告)日：2023-06-27

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 ,  G01S5/12 ,  H04L5/00 ,  H04W4/44

CPC classification number: H04W4/029 ,  G01S5/12 ,  H04L5/0048 ,  H04W4/44

Abstract: 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：US11689890B2

公开(公告)日：2023-06-27

申请号：US17336274

申请日：2021-06-01

Applicant: QUALCOMM Incorporated

Inventor： Chang-Sik Choi ,  Kapil Gulati ,  Sudhir Kumar Baghel

IPC: H04W4/029 ,  H04L5/00 ,  G01S5/02 ,  H04W56/00 ,  H04W4/40

CPC classification number: H04W4/029 ,  G01S5/02216 ,  H04L5/0048 ,  H04W4/40 ,  H04W56/001

Abstract: Certain aspects of the present disclosure provide techniques for improving sidelink positioning via messaging between wireless nodes, e.g., roadside service units (RSUs). A method that may be performed by a user equipment (UE) includes receiving a first positioning reference signal (PRS) from a first wireless node, receiving a second PRS from a second wireless node, receiving, from the first wireless node, an estimate of a first clock error component between the first wireless node and the second wireless node, and estimating a position of the UE, based on the first PRS, the second PRS, and the estimate of the first clock error component.

公开(公告)号：US11677453B2

公开(公告)日：2023-06-13

申请号：US17217878

申请日：2021-03-30

Applicant: QUALCOMM Incorporated

Inventor： Kapil Gulati ,  Hong Cheng ,  Sony Akkarakaran ,  Jung Ho Ryu ,  Junyi Li ,  Tao Luo

IPC: H04B7/06 ,  H04W76/19 ,  H04L1/00 ,  H04W52/26 ,  H04W16/28 ,  H04W92/18

CPC classification number: H04B7/0695 ,  H04L1/0003 ,  H04W16/28 ,  H04W52/265 ,  H04W76/19 ,  H04W92/18

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) participating in a sidelink communications group increments a transmit counter for each packet transmitted by the first UE as part of group communications among the sidelink communications group, increments a receive counter for each packet received by the first UE from a second UE participating in the sidelink communications group as part of group communications among the sidelink communications group; and transmits the transmit counter and the receive counter to a network node based on a configuration received from the network node.

公开(公告)号：US11665742B2

公开(公告)日：2023-05-30

申请号：US17102261

申请日：2020-11-23

Applicant: QUALCOMM Incorporated

Inventor： Qian Zhang ,  Yan Zhou ,  Navid Abedini ,  Junyi Li ,  Kapil Gulati ,  Tao Luo

IPC: H04W74/08 ,  H04L41/0803

CPC classification number: H04W74/0833 ,  H04L41/0803

Abstract: A UE may receive, from a base station, a configuration for a plurality of parameter sets that each include one or more parameters for a RACH message and are each associated with one of TDM, FDM, or SDM. The UE may determine a transmission type of the RACH message corresponding to one or more of the TDM, the FDM, or the SDM and transmit the RACH message to the base station based on at least one parameter set and the determined transmission type of the RACH message. In aspects, the configuration received by the UE may be a configuration for transmitting the RACH message based on a RACH determination protocol. The UE may transmit the RACH message to the base station based on the received configuration associated with the RACH determination protocol and the determined at least one transmission type of the RACH message.

公开(公告)号：US11665689B2

公开(公告)日：2023-05-30

申请号：US16908446

申请日：2020-06-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/1268 ,  H04W76/11 ,  H04W52/24 ,  H04L1/00 ,  H04L61/2517 ,  H04W72/23 ,  H04W92/18

CPC classification number: H04W72/1268 ,  H04L1/0004 ,  H04L61/2517 ,  H04W52/242 ,  H04W72/23 ,  H04W76/11 ,  H04W92/18

Abstract: Aspects of this disclosure relate to a user equipment (UE) for wireless communication within a network. The UE receives, from a radio access network (RAN) entity, one of an uplink indication or an uplink port identification associated with an uplink port. The uplink indication and the uplink port identification are associated with an uplink message. The UE also maps one of the uplink indication to a sidelink indication associated with a sidelink message or the uplink port identification to a sidelink port identification associated with a sidelink port and the sidelink message. The UE further superposition codes the uplink message and the sidelink message into a broadcast transmission based on one of (A) the uplink indication and the sidelink indication, or (B) the uplink port and the sidelink port. In addition, the UE transmits, to the RAN entity, the broadcast transmission.