公开(公告)号：US20240406918A1

公开(公告)日：2024-12-05

申请号：US18700669

申请日：2022-11-09

Applicant: QUALCOMM INCORPORATED

Inventor： Preeti Kumari ,  Kapil Gulati ,  Stelios Stefanatos ,  Junyi Li ,  Anantharaman Balasubramanian ,  Mahmoud Ashour

IPC: H04W64/00 ,  H04B7/06 ,  H04B17/309 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described in which interference between wireless devices that employ radar detection may be reduced or mitigated. A user equipment (UE) may transmit radar signals for target detection and collision avoidance in accordance with an interference mitigation procedure. The interference mitigation procedure may be based on measurement reports of different UEs that are transmitted to a first node (e.g., a roadside unit (RSU) or base station). The first node may configure a measurement procedure for multiple UEs that includes multiple measurement stages, in which a first stage provides that a subset of UEs transmit while other UEs measure received radar signals, and a second stage switches the transmitting and measuring UEs. Each of the UEs may provide measurement reports to the first node, which determines coordinated transmit parameters for the UEs to reduce interference among the UEs.

公开(公告)号：US11589307B2

公开(公告)日：2023-02-21

申请号：US17308318

申请日：2021-05-05

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan Wu ,  Wanshi Chen ,  Anantharaman Balasubramanian ,  Gabi Sarkis ,  Kapil Gulati ,  Stelios Stefanatos ,  Gene Wesley Marsh

IPC: H04W52/02 ,  H04W52/28 ,  H04W72/04 ,  H04W76/28 ,  H04W72/02 ,  H04W72/0446

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may generate a wake up signal to wake up a plurality of second UEs. The wake up signal may be based at least in part on location information associated with the UE, location information associated with one or more of the plurality of second UEs, or a combination thereof. The UE may further transmit, to the plurality of second UEs, the wake up signal. Accordingly, the plurality of second UEs may receive the wake up signal and monitor for messages from the second UE based at least in part on receiving the wake up signal. Numerous other aspects are provided.

公开(公告)号：US20230421309A1

公开(公告)日：2023-12-28

申请号：US18253132

申请日：2022-01-26

Applicant: QUALCOMM INCORPORATED

Inventor： Stelios Stefanatos ,  Shuanshuan Wu ,  Arthur Gubeskys ,  Parisa Cheraghi

IPC: H04L1/1829 ,  H04W72/25 ,  H04L1/1825

CPC classification number: H04L1/1854 ,  H04L1/1825 ,  H04W72/25 ,  H04L1/1861

Abstract: Methods, systems, and devices for wireless communications are described. One or more user equipments (UEs) may communicate in a wireless communications system by transmitting and receiving sidelink messages from other UEs. The UEs may transmit acknowledgement (ACK) or negative acknowledgment (NACK) feedback based on reception of sidelink messages for other UEs. The UEs may identify a sidelink feedback resource set including a set of feedback transmission slots for transmitting sidelink feedback. The UEs may perform NACK-only feedback, and may streamline feedback transmissions based on monitoring for other NACKs from other UEs. The UEs may prioritize feedback transmissions when the UE has multiple feedback transmissions queued, and when a UE has feedback to transmit and to receive in overlapping transmission time intervals (TTIs).

公开(公告)号：US20230403733A1

公开(公告)日：2023-12-14

申请号：US18249360

申请日：2021-11-18

Applicant: QUALCOMM INCORPORATED

Inventor： Shuanshuan Wu ,  Arthur Gubeskys ,  Stelios Stefanatos ,  Kapil Gulati ,  Shailesh Patil ,  Parisa Cheraghi

IPC: H04W72/542 ,  H04W72/0453 ,  H04W74/08

CPC classification number: H04W72/542 ,  H04W72/0453 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communication are described to support configuring a user equipment (UE) operating in unlicensed spectrum with a set of component carriers (CCs) for sidelink communications using the unlicensed spectrum. In a first example, a UE may select a CC from the set of candidate CCs, for example, using a carrier selection configuration, and may select a resource in the CC for a sidelink communication. In a second example, a UE may select multiple candidate resources for a sidelink communication, for example, using a resource selection configuration and based on sensing performed by the UE. To indicate the reservation of a candidate resource, the UE may indicate both a CC in which the reserved resource is located and a location of the reserved resource within the carrier. The UE may transmit a sidelink message using a selected candidate resource in the unlicensed spectrum.

公开(公告)号：US20250081211A1

公开(公告)日：2025-03-06

申请号：US18698304

申请日：2022-10-31

Applicant: QUALCOMM INCORPORATED

Inventor： Libin Liu ,  Stelios Stefanatos ,  Arthur Gubeskys ,  Gabi Sarkis ,  Tien Viet Nguyen ,  Shailesh Patil

IPC: H04W72/25 ,  H04L5/00 ,  H04W74/0833

Abstract: Methods, systems, and devices for wireless communications are described. A first UE may perform a sensing procedure to identify that a first sidelink resource is available. The first UE may select the first sidelink resource for transmitting a first message and one or more remaining sidelink resources for transmitting one or more additional messages. The first CE may transmit the first message via the first sidelink resource to a second UE, the first message indicating a reservation and a resource utilization probability vector for the remaining sidelink resources. The resource utilization probability vector may include the resource utilization probabilities for each sidelink resource. The second UE may select a first sidelink resource of the remaining sidelink resources or a second sidelink resource for transmitting a sidelink message based on the resource utilization probability vector, and may transmit the sidelink message to the first UE in the selected sidelink resource.

公开(公告)号：US12088462B2

公开(公告)日：2024-09-10

申请号：US17249922

申请日：2021-03-18

Applicant: QUALCOMM Incorporated

Inventor： Stelios Stefanatos ,  Shailesh Patil ,  Marco Papaleo ,  Michael Alexander Ruder ,  Tien Viet Nguyen

IPC: H04L41/0816 ,  H04J3/14 ,  H04J3/16 ,  H04W4/40 ,  H04W24/08 ,  H04W28/02

CPC classification number: H04L41/0816 ,  H04J3/14 ,  H04J3/1694 ,  H04W4/40 ,  H04W24/08 ,  H04W28/0226

Abstract: Aspects described herein relate to methods for TDM based co-existence of V2X technologies. A method may comprise receiving a time division multiplexed configuration that is determined based on a distribution of a plurality of technologies in a communication system, the distribution corresponding to a traffic load of each technology and transmitting in accordance with channel access methods of one of the plurality of technologies during a resource allocated according to the received TDM configuration. In an aspect, each of the plurality of technologies operate in accordance with channel access methods defined for each technology.

公开(公告)号：US20230276490A1

公开(公告)日：2023-08-31

申请号：US18006832

申请日：2021-09-29

Applicant: QUALCOMM Incorporated

Inventor： Shuanshuan Wu ,  Arthur Gubeskys ,  Stelios Stefanatos ,  Parisa Cheraghi ,  Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W74/04 ,  H04L1/1812

CPC classification number: H04W74/04 ,  H04L1/1812

Abstract: In one aspect, a method of wireless communication includes receiving, by a user equipment (UE), a sidelink transmission in a first slot of an unlicensed channel The method also includes performing, by the UE, a Channel Access (CA) operation for a hybrid automatic repeat request (HARQ) feedback transmission in a second slot for the sidelink transmission, where the second slot is one of multiple slots configured for HARQ feedback for the sidelink transmission. The method further includes transmitting, by the UE, HARQ feedback transmission in the second slot based on successfully performing the CA operation. Other aspects and features are also claimed and described.

公开(公告)号：US20240314809A1

公开(公告)日：2024-09-19

申请号：US18264234

申请日：2022-02-10

Applicant: QUALCOMM INCORPORATED

Inventor： Tien Viet Nguyen ,  Sourjya Dutta ,  Kapil Gulati ,  Stelios Stefanatos ,  Gabi Sarkis

IPC: H04W72/25 ,  H04W72/566

CPC classification number: H04W72/25 ,  H04W72/566

Abstract: Methods, systems, and devices for wireless communications are described. The method may include monitoring a resource group of a sidelink channel for an indication of sidelink messaging traffic, determining a ratio of sidelink messaging traffic by a first radio access technology relative to sidelink messaging traffic by a second radio access technology based on the monitoring, selecting, based on the ratio, a first resource pattern of a set of multiple different resource patterns, and communicating, via the sidelink channel, a first sidelink message within a first resource of the resource group in accordance with the first resource pattern.

公开(公告)号：US20230224926A1

公开(公告)日：2023-07-13

申请号：US18002207

申请日：2021-08-16

Applicant: QUALCOMM INCORPORATED

Inventor： Gabi Sarkis ,  Stelios Stefanatos ,  Kapil Gulati ,  Shailesh Patil

IPC: H04W72/25 ,  H04W72/044 ,  H04W72/11

CPC classification number: H04W72/25 ,  H04W72/11 ,  H04W72/044

Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device and a receiving device may communicate sidelink messages of a second radio access technology (RAT) using a sidelink resource pool signaled using a first RAT. For example, the receiving UE may receive a sidelink control channel associated with the first RAT (e.g., Long Term Evolution (LTE)), may determine a set of time and frequency resources indicated by the sidelink control channel, and then may monitor the set of time and frequency resources to receive a sidelink message associated with the second RAT (e.g., New Radio (NR)). In some implementations, the set of time and frequency resource may be indicated that they may be used for the second RAT via a field in the sidelink control channel or via an additional sidelink message associated with the second RAT transmitted with the sidelink control channel.

公开(公告)号：US20210329662A1

公开(公告)日：2021-10-21

申请号：US17005059

申请日：2020-08-27

Applicant: QUALCOMM Incorporated

Inventor： Stelios Stefanatos ,  Shuanshuan Wu ,  Arthur Gubeskys

IPC: H04W72/12 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A UE may support superimposed NR and LTE transmissions using an antenna port, in conjunction with an LTE-aware, NR slot structure (e.g., an NR V2X slot structure). In some aspects, the slot structure may protect portions of the LTE signal from interference, increasing LTE decoder robustness to interference which may provide opportunities for increasing the NR signal power. The UE may transmit a superimposed transmission of an LTE signal and an NR signal from a same antenna port in a same radio frequency resource. In some aspects, the slot structure may be modified so that the UE does not transmit when LTE reference signals are transmitted, so as to avoid interference with the LTE reference signals. A receiving UE may use the LTE reference signals to demodulate the LTE signal and the NR signal from the common time and frequency resources.