公开(公告)号：US20250055526A1

公开(公告)日：2025-02-13

申请号：US18366285

申请日：2023-08-07

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Jee Hyun Kim ,  Wolfgang Zirwas ,  Filippo Tosato

IPC: H04B7/06

Abstract: Methods, systems, apparatuses, and computer program products are provided for Givens rotation (GR) matrix parameterization pre-processing for channel state information feedback enhancement in a communication network. In this regard, channel measurement data related to a user equipment is transformed into Givens rotation (GR) matrix parameter data. Additionally, the GR matrix parameter data is encoded using at least one artificial intelligence (AI) model to generate channel state information (CSI) feedback data associated with the channel measurement data.

公开(公告)号：US12184356B2

公开(公告)日：2024-12-31

申请号：US17757217

申请日：2020-12-02

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Wolfgang Zirwas ,  Mihai Enescu

IPC: H04B7/024 ,  H04B7/06

Abstract: A method may include transmitting, by a network node within a wireless network to a reference node, a first precoded tracking signal based on estimated precoding weights that are estimated to provide a predetermined signal at the reference node; receiving, by the network node from the reference node, a message including information related to whether or not the predetermined signal was received at the reference node based, at least in part, on the first precoded tracking signal transmitted by the network node; performing the following, by the network node, if the predetermined signal was not received at the reference node: adjusting one or more transmission parameters of the network node, that is estimated to more accurately provide the predetermined signal at the reference node; and transmitting, by the network node, a second precoded tracking signal based on adjusted transmission parameters.

公开(公告)号：US20230006713A1

公开(公告)日：2023-01-05

申请号：US17757217

申请日：2020-12-02

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Wolfgang Zirwas ,  Mihai Enescu

IPC: H04B7/024 ,  H04B7/06

Abstract: A method may include transmitting, by a network node within a wireless network to a reference node, a first precoded tracking signal based on estimated precoding weights that are estimated to provide a predetermined signal at the reference node; receiving, by the network node from the reference node, a message including information related to whether or not the predetermined signal was received at the reference node based, at least in part, on the first precoded tracking signal transmitted by the network node; performing the following, by the network node, if the predetermined signal was not received at the reference node: adjusting one or more transmission parameters of the network node, that is estimated to more accurately provide the predetermined signal at the reference node; and transmitting, by the network node, a second precoded tracking signal based on adjusted transmission parameters.

公开(公告)号：US12238750B2

公开(公告)日：2025-02-25

申请号：US17756024

申请日：2020-11-13

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Wolfgang Zirwas ,  Mihai Enescu ,  Youngsoo Yuk ,  Rakash Sivasiva Ganesan

IPC: H04W72/54 ,  H04W24/08 ,  H04W72/044

Abstract: According to an example embodiment, an example method may include estimating, by a receiver device in a wireless network, a set of one or more active beams for the receiver device based on an estimated receive power of each active beam to obtain an estimated set of one or more active beams for the receiver device; receiving, by the receiver device, verification information associated with the estimated set of one or more active beams for the receiver device; and, verifying, by the receiver device based on the verification information, the estimated set of one or more active beams for the receiver device.

公开(公告)号：US12063558B2

公开(公告)日：2024-08-13

申请号：US17622030

申请日：2019-06-28

Applicant: Nokia Technologies Oy

Inventor： Wolfgang Zirwas ,  Mikko Säily ,  Elena Virtej

IPC: H04W36/00 ,  H04W36/08 ,  H04W74/0833

CPC classification number: H04W36/0069 ,  H04W36/0016 ,  H04W36/08 ,  H04W74/0833

Abstract: An example method, apparatus, and computer-readable storage medium are provided for early data transmission (EDT) random access (RA) procedure for dual connectivity or carrier aggregation. In an example implementation, the method may include receiving configuration information from a network node, initiating an early data transmission (EDT) random access (RA) procedure with one or more cells indicated in the configuration information, determining a secondary cell of the one or more cells as a preferred secondary cell, and transmitting data to the preferred secondary cell.

公开(公告)号：US20240236713A9

公开(公告)日：2024-07-11

申请号：US18547496

申请日：2021-02-23

Applicant: NOKIA TECHNOLOGIES OY

Inventor： István Zsolt Kovács ,  Teemu Mikael Veijalainen ,  Wolfgang Zirwas ,  Navin Hathiramani

IPC: H04W24/02

CPC classification number: H04W24/02

Abstract: An improved NR-U framework allows a gNB to repeat RLM-RS with the same index over each sub-band of an unlicensed spectrum. For example, a RLM-RS with the same indices are repeated by the gNB over the sub-bands of a wideband channel in an unlicensed spectrum. By monitoring the different sub-bands, a UE may find one or more sub-bands in which the RLM-RS having a particular index is successfully transmitted at a subsequent time.

公开(公告)号：US11627020B2

公开(公告)日：2023-04-11

申请号：US17943881

申请日：2022-09-13

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Wolfgang Zirwas ,  Brenda Vilas Boas ,  Athul Prasad

IPC: H04L25/02

Abstract: Method, comprising receiving a terminal location information or a location-like information from a terminal; selecting one or more first pairs of prior channel information among one or more stored first pairs of prior channel information based on the terminal location information or the location-like information, respectively; inputting the terminal location information or the location-like information, respectively, and the selected one or more first pairs of prior channel information into a trained interpolation neural network to obtain a first estimation of a channel between the terminal and a base station as an output from the interpolation neural network; providing the weights of the trained neural network to the terminal; wherein each of the one or more first pairs of prior channel information comprises a location information related to a respective prior channel and a first representation of the respective prior channel.

公开(公告)号：US11469809B2

公开(公告)日：2022-10-11

申请号：US17045510

申请日：2018-04-13

Applicant: Nokia Technologies Oy

Inventor： Rana Ahmed ,  Thorsten Wild ,  Keeth Saliya Jayasinghe Laddu ,  Mihai Enescu ,  Xiaomao Mao ,  Wolfgang Zirwas ,  Rakash SivaSiva Ganesan ,  Amir Mehdi Ahmadian Tehrani

IPC: H04W4/00 ,  H04B7/06 ,  H04L27/26 ,  H04L25/02

Abstract: Methods, apparatus, and computer program products for a user equipment receiving CSI-RS and computing channel support information. Based on the CSI, the UE derives tap locations of channel support, depending on the observed channel and used subcarrier spacing. The deriving can additionally be done in relation to power class and window size. The UE apprises a base station of those tap locations of the channel support and also informs the base station of the strongest tap locations, which can be done in various ways comprising a bit mask. Methods, apparatus, and computer program products for a base station to send CSI-RS to a UE for computing CSI feedback. The CSI-RS resources can be for one or multiple transmit receive points. The base station receives back an indication of tap locations and a bit mask and builds information on tap locations by combining that received indication and bit mask.

公开(公告)号：US20180092087A1

公开(公告)日：2018-03-29

申请号：US15280026

申请日：2016-09-29

Applicant: Nokia Technologies Oy

Inventor： Wolfgang Zirwas ,  Rakash Sivasivaganesan ,  Berthold Panzner

IPC: H04W72/04 ,  H04B7/04

Abstract: A radio network sub-tiles reference signals (RSs) within a set of resource elements (REs) such that each sub-tiled RS occupies less than a time and/or frequency and/or power extent of its respective RE. The set of REs are dispersed across both frequency bins and time slots according to a pre-defined grid; and transmitted. The user equipment (UE) uses that pre-defined grid to locate within that transmission the set of dispersed REs. The UE accumulates and combines at least one subset of the sub-tiled RSs and estimates therefrom a quality; then reports uplink an indication of that estimated quality. Examples of the RSs include channel state information RSs, beam RSs and beam refinement RSs. Advantages are particularly relevant for 5G new radio systems.

公开(公告)号：US20250056288A1

公开(公告)日：2025-02-13

申请号：US18784301

申请日：2024-07-25

Applicant: Nokia Technologies Oy

Inventor： Fahad SYED MUHAMMAD ,  Bharath Ramesh Kashyap ,  Wolfgang Zirwas ,  Dimitri Gold

IPC: H04W24/10 ,  H04B7/06 ,  H04L5/00 ,  H04W24/02

Abstract: Example embodiments of the present disclosure relate to obtaining of measured information and predicted information related to an Artificial Intelligence (AI)/Machine Learning (ML) model. In an example method, a first apparatus performs, during a first time period, first one or more measurements to obtain first measured information related to the first time period. The first apparatus determines, based on the first measured information, predicted information related to a second time period which is after the first time period. The first apparatus performs, during the second time period, second one or more measurements to obtain second measured information related to the second time period. The first apparatus transmits, to a second apparatus, the second measured information and the predicted information. In this way, a test mechanism framework may evaluate the prediction accuracy for AI/ML based prediction use case.