Telefonaktiebolaget Lm Ericsson (publ)

Angelo Centonza

Ali Parichehrehteroujeni

Icaro L J Da Silva

Pablo Soldati

Johan Rune

Cecilia Eklöf

Marco Belleschi

Ali Nader

Filip Barac

Luca Lunardi

Paul Schliwa-Bertling

Fredrik Gunnarsson

Stefan Wager

Ralf Keller

Pradeepa Ramachandra

Alexander Vesely

Oumer Teyeb

Malik Wahaj Arshad

Mattias Bergström

Torsten Dudda

Peter Hedman

Panagiotis Saltsidis

Emre Yavuz

Mats Folke

Qian Chen

Lars-Bertil Olsson

Oscar Zee

Matteo Fiorani

Robert Petersen

Martin Israelsson

Thomas Walldeen

Ioanna Pappa

Gunnar Heikkilä

Icaro Leonardo Da Silva

Sakib Bin Redhwan

Sofia Svedevall

Gertie Alsenmyr

Daniel Henriksson

Alberto Gonzalez Escudero

Tahmineh Torabian Esfahani

Sebastian Lindqvist

Maria Hultström

Carin Omurcali

Maximilian Popescu

Yazid Lyazidi

Roman Zhohov

Lars Falk

Mattias BERGSTRÖM

A method performed by a target network node includes receiving, from a source network node, a handover request associated with a wireless device. The target network node transmits, via a core network node, a handover reject message to the source network node. The handover reject message comprises a cause value for rejecting the handover request.

Next generation handover failure due to unsupported user equipment capabilities

Systems and methods are disclosed herein for Quality of Experience (QoE) measurements handling at overload in a Radio Access Network (RAN) of a cellular communications system. In one embodiment, a method performed by a first RAN node for handling QoE measurement configuration and/or reporting during RAN overload comprises performing one or more actions related to one or more aspects of QoE measurement configuration, QoE measurement reporting, or both QoE measurement configuration and QoE measurement reporting that mitigate an RAN overload condition. In one embodiment, performing the one or more actions comprises performing one or more actions related to transfer of one or more aspects of QoE measurement configuration from the first RAN node to a second RAN node, transfer of one or more aspects of QoE measurement reporting from the first RAN node to the second RAN node, or both.

QoE measurement handling at overload in RAN

Embodiments herein relate to a method performed by a network node for handling communication in a wireless communication network comprising a first radio network node and a second radio network node providing dual connectivity to a UE (). The network node calculates an average delay of a packet transmission, wherein weighting is applied to a number of packets respectively sent via the first radio network node and the second radio network node when no packet duplication is applied, and wherein weighting is further applied for a respective delay calculation for one or more periods or packets with duplication, and the periods or packets without duplication.

Radio network node, network node, and methods performed in a wireless communication network

Systems and methods related to balancing random access resources between 2-step Random Access Channel (RACH) and 4-step RACH. In one embodiment, a method performed by a first network node comprises obtaining information related to 2-step RACH and/or 4-step RACH, for cell(s) and/or beam(s) controlled by the first network node. The method further comprises determining, based on the obtained information, first assistance information for 2-step and/or 4-step RACH configuration, for the cell(s) and/or the beam(s) controlled by the first network node. The method further comprises transmitting, to a second network node, second assistance information for the 2-step and/or 4-step RACH configuration, for the cell(s) and/or the beam(s) controlled by the first network node. The second assistance information comprises the first assistance information or information that indicates one or more parts of the first assistance information.

Balancing RA resources between 2-step RACH and 4-step RACH

Embodiments include methods for a first radio network node (RNN) in a wireless network to configure quality of experience (QoE) measurements by user equipment (UEs). Such methods include receiving, from a measurement function in the wireless network, a QoE measurement configuration (QMC associated with one or more service types; and configuring one or more UEs with the QMC. Such methods also include sending to a second RNN in the wireless network, a first request for handover of a particular one of the UEs from a first cell served by the first RNN via a first radio access technology (RAT) to a second cell served by the second RNN via a second RAT. The first request includes the QMC. Other embodiments include complementary methods performed by a second RNN or by a UE, as well as first RNNs, second RNNs, and UEs configured to perform such methods.

Quality-of-experience (QoE) measurements it inter-radio access technology (IRAT) handover

A method performed by a Radio Access Network (RAN) node for handling a service request from a User Equipment, UE, in a wireless communications network. The RAN node supports a first network slice in a first Area, A1. The RAN node connects () to the UE via A1. The RAN node sends () to a Core Network (CN) node, a service request from the UE. The service request relates to one or more network slices that the UE requests in a certain Area. The RAN node receives () an indication from the CN node. The indication indicates the one or more network slices requested by the UE together with any one or more out of: —A list of network slices that are allowed to be accessed by the UE in the current A1, and—an indication of a new area priority policy associated to the one or more network slices that are requested by the UE. The RAN node decides () how to handle the service request from the UE based on the indication received from the CN node.

Radio network node, core network node and methods in a wireless communications network

A method performed by a first network node. The first network node operates in a communications network. The method is for handling a measurement configuration. The first network node sends an indication to a second network node operating in the communications network. The indication indicates a transmission status of one or more Channel State Information-Reference Signal (CSI-RS) configurations of the first network node. The second network node receives the indication. The third network node receives another indication from the second network node. The third network node is managed by the second network node. The another indication indicates a transmission status of the one or more CSI-RS configurations of the first network node and configures the wireless device based on the received other indication.

First network node, second network node, third network node and methods performed thereby, for handling a measurement configuration

A simulated Public Warning System (PWS) message is defined for efficient PWS testing. The simulated PWS message mimics a conventional PWS message, but indicates that it is not to be propagated across an air interface to UEs. However, the simulated PWS message is otherwise propagated through the network as a PWS message. This allows for testing the generation and propagation of PWS messages, without wasting valuable air interface and battery resources. In some embodiments, network nodes may initiate testing by requesting a simulated PWS message. An Access and Mobility management Function (AMF) node in a wireless communication network collects and reports network status to a PWS entity. The AMF node ascertains the functionality of network functions, nodes, and interfaces to which it is connected, independently from receiving reports of such functionality, and an indication of any detected fault or failure is sent to the PWS entity.

Systems and methods for monitoring and efficiently testing network resource availability and configuration for public warning systems

The present disclosure relates to telecommunications. In one of its aspects, the disclosure concerns a method, performed by a first network node, for providing resource status information to a second network node. The first network node controls a radio cell comprising a plurality of partitions. The method comprises determining a resource status information based on a ratio between a resource status associated to the radio cell and a resource status associated to at least one partition of the radio cell. The method further comprises transmitting, to the second network node, a resource status update message comprising at least one information element comprising the determined resource status information.

Method and device for providing resource status information

Embodiments include methods, performed by a user equipment, UE, for reporting failures related to mobility operations by the UE to a network node in a radio access network, RAN. Such methods include logging () information associated with a plurality of failures during conditional handover, CHO, operations related to a source cell and one or more first target cells. Such methods also include, after a successful mobility operation to a second target cell served by the network node, reporting () the logged information, associated with the plurality of failures, to the network node. Other embodiments include complementary methods performed by a network node, as well as UEs and network nodes configured to perform such methods.

Reporting failures of conditional handover mobility operations

A method performed by a first network node () operating in a wireless communications network () with a Radio Access Technology with a split architecture. The first network node () is a Centralized Unit and a second network node () is a Distributed Unit. The first network node () detects () a RACH configuration between a served cell and a neighbor cell, and sends () a first indication to the second network node () based on the conflict. The first indication comprises at least one of: i) a notification of the conflict, ii) assistance information associated to the conflict, iii) a request for assistance information, and iv) a request to resolve the conflict. The first network node () then receives () one or more second indications from the second network node (), wherein at least one is based on a result of a verification of an existence of the conflict.

First network node, second network node and methods performed thereby for handling a RACH configuration

A user equipment starts a first timer and a second timer in response to different respective network events. The starting of the first and second timers causes the first and second timers to simultaneously elapse. In response to one of the simultaneously elapsing timers expiring, the user equipment indicates, to a network node, which of the simultaneously elapsing timers expired.

Mobility robustness in a cellular network

A method performed by a first network node in a radio access network is provided. The method includes determining to initiate a procedure with a first set of at least one neighboring network node. The method further includes, responsive to the determining, sending to the first set of at least one neighboring network node a first message including timing accuracy information for at least one synchronization source of the first network node on at least one of a per cell basis, a per network node basis, or a per neighboring network node for a cell served by the first network node.

Communicating timing accuracy information for synchronization source of network node and related apparatuses

According to certain embodiments, a method is performed by a network node comprising a CU. The method comprises receiving assistance information for mobility robustness optimization and forwarding the assistance information, configuration changes related to mobility robustness optimization, or both to a DU or to a second CU. According to certain embodiments, a method is performed by a network node comprising a DU. The method comprises receiving assistance information for mobility robustness optimization. The assistance information indicates that a failure may have originated in a cell of the DU. The method further comprises performing one or more parameter changes in one or more functions handled by the DU.

Centralized unit-distributed unit communication associated to radio link failure report and beam failure recovery attempts

A network node () of a radio access network (RAN) of a wireless communication network () provides user plane security by establishing a secure tunnel between first and second tunnel endpoints () that will handle respective protocol layers of a same protocol stack for a Data Radio Bearer (DRB) () that is dedicated to user plane traffic and has yet to be established. Establishing the secure tunnel comprises exchanging an inner Internet Protocol (IP) address and an outer IP address of each of the endpoints () between the endpoints ().

User plane security in split RAN architectures

Growing community of inventors

Granada, Spain

Angelo Centonza