公开(公告)号：US20230370986A1

公开(公告)日：2023-11-16

申请号：US18195594

申请日：2023-05-10

Applicant: Nokia Technologies Oy

Inventor： Prajwal KESHAVAMURTHY ,  Thomas Haaning JACOBSEN ,  Renato Barbosa ABREU ,  Pilar ANDRES MALDONADO ,  Troels Emil KOLDING ,  Jan Torst HVIID

IPC: H04W56/00

CPC classification number: H04W56/0015 ,  H04W56/0055

Abstract: The disclosure relates to an apparatus comprising: means for determining (1000) that a second sidelink synchronization reference user equipment extends synchronization coverage of a first sidelink synchronization reference user equipment; means for determining (1002) a first synchronization error between the first sidelink synchronization reference user equipment and the second sidelink synchronization reference user equipment and a second synchronization error between the first sidelink synchronization reference user equipment and the apparatus; and means for determining (1004) whether to operate the apparatus as a sidelink synchronization reference user equipment and extend the synchronization coverage of the first sidelink synchronization reference user equipment based on the first synchronization error and the second synchronization error.

公开(公告)号：US20250159633A1

公开(公告)日：2025-05-15

申请号：US18837958

申请日：2022-02-16

Applicant: Nokia Technologies Oy

Inventor： Thomas Haaning JACOBSEN ,  Renato Barbosa ABREU ,  Prajwal KESHAVAMURTHY

IPC: H04W56/00

Abstract: An apparatus includes a memory and processing circuitry. The processing circuitry is configured to cause the apparatus to request synchronization reference source information from a user equipment, determine whether to conduct an offset compensation based on the synchronization reference source information, and, in response to a determination to conduct the offset compensation, obtain a first propagation delay associated with the apparatus, determine a reference time based on the first propagation delay, and forward the reference time to the user equipment.

公开(公告)号：US20250139509A1

公开(公告)日：2025-05-01

申请号：US18683541

申请日：2021-09-22

Applicant: Nokia Technologies Oy

Inventor： Tejas SUBRAMANYA ,  Prajwal KESHAVAMURTHY

IPC: G06N20/00

Abstract: There are provided measures for enhancement of training node selection for trustworthy federated learning. Such measures exemplarily comprise, at a first network entity coordinating artificial intelligence or machine learning contributor selection in a network, receiving, respectively from a first and a second of a plurality of second network entities managing artificial intelligence or machine learning trustworthiness in artificial intelligence or machine learning pipelines in said network, a first/second artificial intelligence or machine learning contributor selection conflict resolution request including a first/second federated learning distributed node candidate list including at least one first/second federated learning distributed node in said network, wherein each of said at least one first/second federated learning distributed node has trustworthiness capabilities satisfying first/second artificial intelligence or machine learning trustworthiness requirement criteria and is associated with a respective rank in said first/second federated learning distributed node candidate list, transmitting, respectively towards said first and said second of said plurality of second network entities, a first/second artificial intelligence or machine learning contributor selection conflict resolution response including an updated first/second federated learning distributed node candidate list removing a conflict between said first federated learning distributed node candidate list and said second federated learning distributed node candidate list.

公开(公告)号：US20250106813A1

公开(公告)日：2025-03-27

申请号：US18822961

申请日：2024-09-03

Applicant: Nokia Technologies Oy

Inventor： Deepa MALAPATI RAVINDRAIAH ,  Akshay JAISWAL ,  Prajwal KESHAVAMURTHY ,  Jürgen HOFMANN ,  Gilsoo LEE

IPC: H04W64/00 ,  H04W24/10 ,  H04W92/18

Abstract: Embodiments of the present disclosure relate to apparatuses, methods, and computer readable storage media for dynamic configuration of measurement parameters for sidelink positioning. In the method, a first apparatus receives, from a second apparatus, a plurality of measurement configurations for sidelink positioning. Moreover, in accordance with a determination that a first trigger condition defined the plurality of measurement configurations is met, the first apparatus determines a first measurement configuration corresponding to the first trigger condition from the plurality of measurement configurations. Thereby, the proposed solutions can advantageously improve the positioning accuracy.

公开(公告)号：US20250056481A1

公开(公告)日：2025-02-13

申请号：US18796034

申请日：2024-08-06

Applicant: Nokia Technologies Oy

Inventor： Prajwal KESHAVAMURTHY ,  Hyun-Su CHA ,  Taylan SAHIN

IPC: H04W64/00

Abstract: Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage medium for synchronization reference alignment. In a method, a server device obtains first information indicating at least one of: a role of a device of at least one device during positioning of a target device based on at least sidelink positioning reference signals, or quality of a plurality of links between the device of the at least one device and a plurality of positioning anchor devices for the positioning of the target device. Based on at least the first information, the server device determines a common synchronization reference source for synchronization of at least one of the plurality of positioning anchor devices.

公开(公告)号：US20250056476A1

公开(公告)日：2025-02-13

申请号：US18792469

申请日：2024-08-01

Applicant: Nokia Technologies Oy

Inventor： Stepan KUCERA ,  Diomidis MICHALOPOULOS ,  Prajwal KESHAVAMURTHY ,  Taylan SAHIN

IPC: H04W64/00 ,  H04L5/00 ,  H04W92/18

Abstract: An apparatus configured to: obtain at least one positioning reference signal measurement, wherein the at least one positioning reference signal measurement comprises at least one of: a positioning reference signal measurement from a session-less positioning process, a positioning reference signal measurement from a past positioning process, or a positioning reference signal measurement from a parallel positioning process; and determine one of: the at least one obtained positioning reference signal measurement, or an indication of the at least one obtained positioning reference signal measurement for use in a positioning process for the apparatus.

公开(公告)号：US20250056394A1

公开(公告)日：2025-02-13

申请号：US18774549

申请日：2024-07-16

Applicant: Nokia Technologies Oy

Inventor： Prajwal KESHAVAMURTHY ,  Taylan SAHIN ,  Diomidis MICHALOPOULOS ,  Endrit DOSTI

IPC: H04W48/18 ,  H04W24/02 ,  H04W64/00

Abstract: Methods, apparatuses, and computer program products provide means for functionality selection assistance to determine selection of a preferred functionality for an Artificial Intelligence/Machine Learning model feature. An example method includes: receiving a request for supported functionalities from a network node; identifying the supported functionalities; determining functionality selection assistance information; and providing an indication of the supported functionalities and the functionality selection assistance information to the network node. A method can optionally include receiving an indication of a selected functionality of the supported functionalities based, at least in part, on the functionality selection assistance information; and employing the selected functionality to support a feature.

公开(公告)号：US20250031179A1

公开(公告)日：2025-01-23

申请号：US18776616

申请日：2024-07-18

Applicant: Nokia Technologies Oy

Inventor： Prajwal KESHAVAMURTHY ,  Diomidis MICHALOPOULOS ,  Taylan SAHIN ,  Anastasios KAKKAVAS ,  Stepan KUCERA

IPC: H04W64/00 ,  H04L5/00 ,  H04W56/00

Abstract: The present disclosure relates to reference signal transmission alignment. In particular, a target device determines whether a reference signal transmission alignment is needed among a set of anchor devices. If the reference signal transmission alignment is needed, an anchor device receives a request for the reference signal transmission alignment. The anchor device determines a transmission time window based on the request and transmits a reference signal as per the transmission time window. In this way, it can mitigate an impact of synchronization timing reference change at the target device in measurement. Consequently, the solution allows for high accuracy measurements and hence enables high accuracy sidelink positioning.

公开(公告)号：US20240348401A1

公开(公告)日：2024-10-17

申请号：US18632655

申请日：2024-04-11

Applicant: Nokia Technologies Oy

Inventor： Ryan KEATING ,  Torsten WILDSCHEK ,  Taylan SAHIN ,  Hyun-Su CHA ,  Prajwal KESHAVAMURTHY

IPC: H04L5/00 ,  G01S5/02 ,  H04W72/25

CPC classification number: H04L5/0051 ,  G01S5/0205 ,  H04W72/25

Abstract: Systems, methods, apparatuses, and computer program products for dynamic gap symbol in sidelink positioning reference signal (SL PRS) resource configuration. A method may include receiving, from a user equipment, a sidelink control information indicating whether a gap symbol exists for a sidelink positioning reference signal transmission. The method may also include determining a time domain allocation of the sidelink positioning reference signal. The method may further include receiving, from the user equipment, a sidelink positioning reference signal with or without the gap symbol. In addition, the method may include performing a positioning computation based on the sidelink positioning reference signal received from the user equipment.

公开(公告)号：US20240272294A1

公开(公告)日：2024-08-15

申请号：US18438934

申请日：2024-02-12

Applicant: Nokia Technologies Oy

Inventor： Prajwal KESHAVAMURTHY ,  Oana-Elena BARBU ,  Torsten WILDSCHEK ,  Ryan KEATING ,  Hyun-Su CHA ,  Stepan KUCERA

IPC: G01S13/76

CPC classification number: G01S13/765 ,  G01S13/767

Abstract: Inter-alia, a method e.g. performed by an anchor user device is disclosed comprising:



receiving a first target sidelink positioning reference signal;
transmitting a first anchor sidelink positioning reference signal;
performing a receiver-transmitter time difference measurement based on the first target sidelink positioning reference signal and the first anchor sidelink positioning reference signal;
transmitting an indication of a suggestion to switch from a first sidelink round-trip time positioning method to a second round-trip time positioning method based on the receiver-transmitter time difference measurement.




Further, inter-alia a method performed by a target user device is disclosed as well as respective anchor and target user devices.