公开(公告)号：US11700095B2

公开(公告)日：2023-07-11

申请号：US17062020

申请日：2020-10-02

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：US11671873B2

公开(公告)日：2023-06-06

申请号：US16938882

申请日：2020-07-24

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Sudhir Kumar Baghel ,  Tien Viet Nguyen ,  Kapil Gulati ,  Naga Bhushan

IPC: H04W28/08 ,  H04W72/02 ,  H04W28/26 ,  H04W4/40 ,  H04W72/542 ,  H04W72/566 ,  H04W92/18

CPC classification number: H04W28/0875 ,  H04W4/40 ,  H04W28/0967 ,  H04W28/26 ,  H04W72/02 ,  H04W72/542 ,  H04W72/569 ,  H04W92/18

Abstract: Certain aspects of the present disclosure provide techniques for high reliability vehicle-to-everything (V2X) communications. Aspects of the present disclosure provide methods that may be performed by a first sidelink device. The first sidelink device may be a roadside unit (RSU) or a user equipment (UE). The first sidelink device may detect traffic from at least a second sidelink device and send the traffic to one or more other sidelink devices. A first sidelink device may receive reservation information from a first plurality of sidelink devices and schedule a second plurality of sidelink devices based on the reservation information.

公开(公告)号：US20230110954A1

公开(公告)日：2023-04-13

申请号：US18053926

申请日：2022-11-09

Applicant: QUALCOMM Incorporated

Inventor： Hong Cheng ,  Dan Vassilovski ,  Sudhir Kumar Baghel

IPC: H04W76/19 ,  H04W76/25

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may establish a sidelink connection with a second UE, where the sidelink connection is associated with a plurality of flows. The first UE may determine, based on monitoring each flow of the plurality of flows, a radio link status of the sidelink connection. The first UE may transmit, based on the determining, a non-access stratum layer message to the second UE based at least on the radio link status of the sidelink connection.

公开(公告)号：US11622230B2

公开(公告)日：2023-04-04

申请号：US16901915

申请日：2020-06-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/00 ,  H04W4/02 ,  H04W4/40 ,  B60W40/06 ,  B60W40/105 ,  B60W40/107

Abstract: A user equipment in a vehicle (V-UE) may transmit ranging signals, for example positioning reference signals (PRS), via inter-vehicle messages. The broadcast parameters for the ranging signals, such as the timing of transmission, the bandwidth, or a combination thereof, may be adjusted based on one or more motion characteristics of the vehicle. If high speed or large acceleration, or rate of turning, is detected, the rate of transmission and/or the resource blocks included in the ranging signals may be increased. By increasing the rate of transmission and/or recourse blocks in the ranging signals, other vehicles receiving the ranging signals may update the range more often and with greater accuracy for increased safety while the transmitting vehicle is traveling at high speeds or acceleration.

公开(公告)号：US11617151B2

公开(公告)日：2023-03-28

申请号：US16904240

申请日：2020-06-17

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan Wu ,  Sudhir Kumar Baghel ,  Kapil Gulati

IPC: H04W76/11 ,  H04W4/40 ,  H04W64/00 ,  H04W28/06 ,  G01S19/51 ,  H04L1/1812 ,  H04W92/18

Abstract: Disclosed are techniques for wireless communication. In an aspect, a transmitter user equipment (UE) determines a first zone identifier (ID) corresponding to a first zone in which the transmitter UE is located, determines a distance threshold based on a distance requirement of an application associated with the transmitter UE, determines a second zone ID based on the first zone ID, the distance threshold, a size of the first zone, or any combination thereof, and transmits the second zone ID and the distance threshold to one or more receiver UEs. In an aspect, the receiver UE receives the second zone ID and the distance threshold, determines a distance between the receiver UE and the transmitter UE based on the second zone ID and a location of the receiver UE, and transmits, based on the distance being less than the distance threshold, a feedback message to the transmitter UE.

公开(公告)号：US11601916B2

公开(公告)日：2023-03-07

申请号：US17090068

申请日：2020-11-05

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04W24/08 ,  H04W72/12 ,  H04B17/318 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may measure the reference signal received power (RSRP) of reference signals from other UEs in a time window and exclude resources of transmissions with a measurement which is above RSRP threshold. In some cases, not enough resources are identified, and the UE may increase the RSRP and search for resources again, however the UE may only increase the RSRP until a stop RSRP limit is reached. The UE may increase the RSRP based on an absolute value or a factor of an incremental power value. Once the stop RSRP threshold is reached, the UE may modify the size of the time window, shift the time window, or reduce the number of retransmission of the sidelink message to search for resources for the sidelink message.

公开(公告)号：US11595898B2

公开(公告)日：2023-02-28

申请号：US17247728

申请日：2020-12-21

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W68/00 ,  G08G1/00 ,  H04W52/02 ,  H04W68/02 ,  H04W72/04 ,  H04W60/00 ,  H04W4/40

Abstract: Various aspects of the present disclosure generally relate to paging in vehicle to everything (V2X) communications for power saving. In some aspects, a user equipment (UE) may monitor for a wake up signal or a paging message from a wireless communication device and monitor for V2X messages from vehicle UEs based at least in part on receiving the wake up signal or the paging message. The UE may receive a V2X message from a vehicle UE based at least in part on the monitoring. Numerous other aspects are provided.

公开(公告)号：US11589310B2

公开(公告)日：2023-02-21

申请号：US16947596

申请日：2020-08-07

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04W56/00 ,  H04W28/02 ,  H04W76/28

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), an indication of an access link discontinuous reception (DRX) configuration and a sidelink DRX configuration. The access link DRX configuration and the sidelink DRX configuration may synchronize access link DRX operation and sidelink DRX operation of the UE. The UE may perform access link communication with the BS based at least in part on the access link DRX configuration and/or may perform sidelink communication with another UE based at least in part on the sidelink DRX configuration. Numerous other aspects are provided.

公开(公告)号：US11582635B2

公开(公告)日：2023-02-14

申请号：US16660595

申请日：2019-10-22

Applicant: QUALCOMM Incorporated

Inventor： Sudhir Kumar Baghel ,  Junyi Li ,  Shailesh Patil ,  Kapil Gulati ,  Wanshi Chen ,  Arjun Bharadwaj

IPC: H04W28/02 ,  H04W40/12 ,  H04W72/10 ,  H04W74/08 ,  H04W76/27 ,  H04W72/044 ,  H04W74/00

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：US11576126B2

公开(公告)日：2023-02-07

申请号：US17189997

申请日：2021-03-02

Applicant: QUALCOMM Incorporated

Inventor： Anantharaman Balasubramanian ,  Sudhir Kumar Baghel ,  Shuanshuan Wu ,  Kapil Gulati ,  Wanshi Chen ,  Gabi Sarkis ,  Seyedkianoush Hosseini ,  Gokul Sridharan

IPC: H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a signal indicating a wakeup opportunity associated with receiving one or more messages from an application and may identify a mapping between an attribute of the signal and an identifier associated with the application. The UE may determine a wakeup procedure in response to receiving the signal based on the mapping between the attribute of the signal and the identifier associated with the application.