公开(公告)号：US20210314894A1

公开(公告)日：2021-10-07

申请号：US17217168

申请日：2021-03-30

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Mads LAURIDSEN ,  Jeroen WIGARD

IPC: H04W56/00

Abstract: A client device, a network node device, methods and computer programs are disclosed. A client device may comprise at least one processor and at least one memory including computer program code. The at least one memory and the computer program code may be configured to, with the at least one processor, cause the client device to receive a timing advance configuration message from a network node device, wherein the timing advance configuration message comprises a plurality of timing advance commands; perform a plurality of consecutive uplink transmissions to the network node device; and apply the plurality of timing advance commands between the plurality of consecutive uplink transmissions.

公开(公告)号：US20210273717A1

公开(公告)日：2021-09-02

申请号：US17168901

申请日：2021-02-05

Applicant: Nokia Technologies Oy

Inventor： Jeroen WIGARD ,  Mads LAURIDSEN ,  Rafhael AMORIM ,  Frank FREDERIKSEN

IPC: H04B7/185 ,  H04W56/00 ,  H04W76/27

Abstract: Systems, methods, apparatuses, and computer program products for dynamic cell-specific delay for timing scaling in a non-terrestrial network (NTN). For example, certain embodiments may utilize a cell-common delay composed of FL and part of SL (until a cell-specific reference surface). A network node (e.g., a gNB) may calculate the cell-common delay as a function of time (T_c(t)) and may provide this function to the UEs (the satellite path may beis deterministic). The function of time may be a combination of two functions representing the FL and SL. The function can may be broadcasted in a system information block (SIB) or transmitted directly to the UE through radio resource control (RRC) signaling when it becomes active, is handed over, and/or regularly updated.

公开(公告)号：US20200077358A1

公开(公告)日：2020-03-05

申请号：US16119503

申请日：2018-08-31

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Istvan KOVACS ,  Jeroen WIGARD ,  Nitin MANGALVEDHE ,  Benedek SCHULTZ

IPC: H04W64/00 ,  H04W36/32 ,  H04W68/06 ,  H04W4/021 ,  H04W8/18 ,  H04W76/27 ,  H04W28/02

Abstract: Systems, methods, apparatuses, and computer program products for mobility management in NR based non-terrestrial networks are provided. One method includes signaling geographical definitions of Geo-Areas (GAs) and/or an update to GA map to at least one user equipment (UE) in a network, and receiving a tracking area update (TAU) and/or radio access network (RAN)-based notification area update (RNAU) when the at least one UE detects a change in the at least one UE's GA location. The method may also include registering the change in the at least one UE's GA location, and configuring at least one of radio access network (RAN)-based notification area (RNA) or tracking area (TA) based on the registered change in the at least one UE's GA location.

公开(公告)号：US20250126590A1

公开(公告)日：2025-04-17

申请号：US18293897

申请日：2021-08-11

Applicant: Nokia Technologies Oy

Inventor： Benny VEJLGAARD ,  Oana-Elena BARBU ,  Ryan KEATING ,  Johannes HARREBEK ,  Jeroen WIGARD

IPC: H04W64/00 ,  H04W74/0816 ,  H04W84/06

Abstract: There is provided an apparatus that is caused to: in response to determining that a plurality of access points to be configured to provide positioning reference signals to a user equipment comprises at least one non-terrestrial access point and at least one terrestrial access point: determining, for the at least one non-terrestrial access point, a propagation delay for signalling between said non-terrestrial access point and the user equipment; using the determined propagation delay to select a configuration of at least one of: a duration of a measurement gap at the user equipment in which the user equipment is to perform positioning-related measurements on positioning reference signals transmitted by the plurality of access points, and a transmission time of at least one positioning reference signal to be provided to the user equipment by at least one of the plurality of access points; and signalling the selected configuration.

公开(公告)号：US20250126537A1

公开(公告)日：2025-04-17

申请号：US18968453

申请日：2024-12-04

Applicant: Nokia Technologies Oy

Inventor： Jeroen WIGARD ,  Enric JUAN ,  Jedrzej STANCZAK ,  Frank FREDERIKSEN ,  Ahmad MASRI

IPC: H04W36/08 ,  H04W36/00 ,  H04W36/02

Abstract: The present disclosure relates to on transition to another cell without handover in non-terrestrial network (NTN). In particular, a NTN device transmits information related to a set of NTN devices to a terminal a first device receives assistance information of a NTN device from a second device. The assistance information at least indicated a type of a cell switching. The first device skips buffer flushing and security key updating regardless of the type of cell switching. In this way, it can achieve cell switching without handover.

公开(公告)号：US20250048247A1

公开(公告)日：2025-02-06

申请号：US18776088

申请日：2024-07-17

Applicant: Nokia Technologies Oy

Inventor： Frank FREDERIKSEN ,  Jeroen WIGARD ,  Enric JUAN ,  Jedrzej STANCZAK

IPC: H04W48/20 ,  H04W84/06

Abstract: A UE, connected using a current cell served by a first satellite to a BS, receives information from the BS including assistance information for a cell switch from the current cell to a cell served by a second satellite. The information is received before a stop time indicating when the current cell will stop serving the UE. The UE performs the cell switch from the current cell to the cell served by the second satellite using at least the assistance information to find cell synchronization block(s) for the served by the second satellite. The BS sends the information from the BS including the assistance information for a cell switch from the current cell to a cell served by a second satellite. The BS shuts down the current cell at a stop time.

公开(公告)号：US20240267772A1

公开(公告)日：2024-08-08

申请号：US18410658

申请日：2024-01-11

Applicant: Nokia Technologies Oy

Inventor： Jeroen WIGARD ,  Rafhael MEDEIROS DE AMORIM ,  Mads LAURIDSEN

IPC: H04W24/10 ,  H04W24/08 ,  H04W84/06

CPC classification number: H04W24/10 ,  H04W24/08 ,  H04W84/06

Abstract: Devices, methods and computer programs for avoiding unnecessary radio measurement gaps in a non-terrestrial network are disclosed. At least some example embodiments may allow replacing an unused radio measurement gap with an option of scheduling to improve network scheduling flexibility, user throughput and/or latency, and client device battery life.

公开(公告)号：US20240032097A1

公开(公告)日：2024-01-25

申请号：US18255279

申请日：2021-11-17

Applicant: Nokia Technologies Oy

Inventor： Sandra HOPPE ,  Jeroen WIGARD

IPC: H04W74/08 ,  H04W74/04

CPC classification number: H04W74/0816 ,  H04W74/04

Abstract: Example embodiments provide signaling between a network node and a client node in non-terrestrial network which enables optimizing energy consumption of the client node. The client node may adapt its power saving mode duration to end at a suitable time for transmission based on information about transmission opportunities computed by the network node. The network nodes may be moving network nodes that operate at altitude, such as satellites. Apparatuses, methods, and computer programs are disclosed.

公开(公告)号：US20240007181A1

公开(公告)日：2024-01-04

申请号：US18257938

申请日：2021-12-01

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Mads LAURIDSEN ,  Jeroen WIGARD ,  Rafhael MEDEIROS DE AMORIM

IPC: H04B7/185 ,  H04B17/309 ,  H04B17/40

CPC classification number: H04B7/18519 ,  H04B7/18513 ,  H04B17/309 ,  H04B17/40

Abstract: Apparatus and method for communication in non-terrestrial networks are provided. Downlink transmissions are received (400) from one or more non-terrestrial nodes. Signal strengths and/or signal quality of the transmissions are measured (402) from the one or more non-terrestrial nodes. Transitions between line-of-sight and non-line-of-sight states regarding the one or more non-terrestrial nodes are determined (404). Locations of the one or more non-terrestrial nodes and the apparatus are determined (406) and elevation and azimuth angles to the one or more non-terrestrial nodes from the apparatus are calculated (408). A database of the line-of-sight and non-line-of-sight states is generated (410) as a function of elevation and azimuth angles and apparatus location and utilised (412) to determine expected line-of-sight and non-line-of-sight states for non-terrestrial nodes.

公开(公告)号：US20230397259A1

公开(公告)日：2023-12-07

申请号：US18249688

申请日：2021-01-14

Applicant: Nokia Technologies Oy

Inventor： Mads LAURIDSEN ,  Jeroen WIGARD

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/542

CPC classification number: H04W74/0833 ,  H04W74/006 ,  H04W72/542 ,  H04W84/06

Abstract: This document discloses a solution for performing a random access procedure. According to an aspect, a method for a terminal device comprises: receiving, from an access node, system information comprising a first random access configuration and at least a second random access configuration; determining, whether a link loss between the terminal device and the access node is increasing or decreasing; if the link loss is determined to decrease, selecting the first random access configuration and performing the random access with the access node by using the first random access configuration; and if the link loss is determined to increase, selecting the second random access configuration and performing random access with the access node by using the second random access configuration.