Telefonaktiebolaget Lm Ericsson (publ)

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

China Mobile Communications Corporation

Unwired Planet, LLC

Paul Schliwa-Bertling

John Walter Diachina

Mårten Sundberg

Peter Hedman

Gunnar Mildh

Andreas Bergström

Nicklas Johansson

Jens Bergqvist

Qian Chen

Angelo Centonza

Håkan Axelsson

Magnus Stattin

Claes-Göran Persson

Hans Bertil Rönneke

Jari Tapio Vikberg

Stefan Rommer

Christofer Lindheimer

Karl Norrman

Osman Nuri Can Yilmaz

Olof Liberg

Icaro L J Da Silva

Stefan Eriksson Löwenmark

Stefan Wager

Alexander Vesely

Elena Myhre

György Miklós

Karl Hellwig

Lars-Bertil Olsson

Oscar Zee

Stefan Johansson

Rasmus Axén

Sajal Kumar Das

Jose Luis Pradas

Oscar Ohlsson

Stefan Engström

Maria Belen Pancorbo Marcos

Matteo Fiorani

Joachim Sachs

Noamen Ben Henda

Nianshan Shi

Peter Ramle

Thomas Walldeen

Mikael Wass

Dirk Kampmann

Martin Hessler

Henning Wiemann

Mattias Bergström

Walter Müller

Miguel Lopez

Andreas Höglund

Monica Wifvesson

Pontus Wallentin

Emre Yavuz

Tomas Hedberg

Magnus Karlsson

Mehdi Amirijoo

Balázs Varga

Kai-Erik Sunell

Håkan Palm

Malik Wahaj Arshad

János Harmatos

Rui Fan

Ralf Keller

Oumer Teyeb

Reiner Ludwig

János Farkas

Dinand Roeland

Henrik Enbuske

Hans Hannu

Magnus Norberg Olsson

Lasse Olsson

Martin Israelsson

Erik Westerberg

Josefin Karlsson

Johan Rune

Yufei W Blankenship

Erik A Eriksson

Tomas Nylander

Pradeepa Ramachandra

Janne Peisa

Thorsten Lohmar

Torsten Dudda

Jan Christoffersson

Yong Yang

Riikka Susitaival

Stefan Wänstedt

Patrik Rugeland

Vesa Lehtovirta

Prajwol Kumar Nakarmi

Attila Mihály

Stefano Ruffini

Filip Mestanov

Tuomas Tirronen

Johan Moe

Vesa Torvinen

Ivo Sedlacek

Göran Rune

Sudeep Manithara Vamanan

Magnus Sandgren

Ann-Christine Sander

Systems and methods for session continuity of Multicast Broadcast (MB) Sessions are provided. In some embodiments, a method performed by a base station for session continuity of MB Sessions includes at least one of: providing at least one MB Session to a wireless device connected in 5G; determining that the wireless device is handed over to a target Next Generation Radio Access Network (NG-RAN); and providing session continuity of the at least one MB Session to the wireless device. In some embodiments, being handed over to the target NG-RAN comprises an Xn handover. In some embodiments, being handed over to the target NG-RAN comprises a N2 handover. Some embodiments of the current disclosure provide support for Multicast Broadcast Session continuity (aka 'Handover') at Inter-gNB Xn Handover and Inter-gNB N2 Handover in the 5G NR radio access.

5G multicast broadcast service handover

Systems and methods related to core network and radio access network (RAN) interactions for a Multicast/Broadcast (MB) session are disclosed herein. In one embodiment, a method performed by an Access and Mobility Management Function (AMF) for a MB session join procedure includes receiving a MB session join request from a User Equipment (UE) via a RAN node, the MB session join request being a request to join a particular MB session. The method further includes determining that the MB session join request is permitted by a subscription of the UE, selecting a MB Session Management Function (MB-SMF) based on information included in the MB session join request, communicating with the MB-SMF to create a MB session context in the AMF and an MB session context in the MB-SMF, and sending a MB session join accept message to the UE.

RAN-5GC interactions for session join, session start, session leave, session stop, and session delete for 5G multicast broadcast services

One aspect provides a method performed by a radio access network node in a telecommunications network. The method comprises: responsive to detection of a trigger event associated with a wireless device having a connection to the telecommunications network via the radio access network node or seeking to establish a connection to the telecommunications network via the radio access network node, transmitting, directly to a user plane core network node, a message initiating establishment of a user-plane tunnel for the connection between the radio access network node and the user plane core network node. The message comprises one or more of: an indication of an identifier of the wireless device; and an indication of an identifier of a session for the wireless device, and further comprises an indication of a downlink tunnel endpoint identifier of the radio access network node.

Tunnel initiation in a communications network

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

Embodiments herein relate to, for example, a method performed by a source radio network node (), for handling communication in a wireless communications network, wherein the source radio network node is adapted to relay data packets between a first radio network node and a UE in the wireless communications network. The source radio network node () transmits to a target radio network node () a message relating to a cell selection and/or a handover for the UE, wherein the message comprises a first user plane indication, and wherein the first user plane indication is an indication of setting up a user plane communication or not for the UE.

Methods and radio network nodes for handling communication

Methods supporting a Quality of Service (QoS) update during a Handover (HO) procedure are disclosed herein. More specifically, methods performed by a Radio Access Network (RAN) node and a Core Network (CN) node for supporting a QoS update during an HO are provided. The methods disclosed herein can facilitate flexible New Generation (NG)-RAN (NG-RAN) deployment with a mixture of NG-RAN nodes capable or incapable of supporting additional parameters in an HO procedure. The methods also make it possible to provide smooth NG-RAN software updates between different software releases.

QoS update handling alternatives during Xn HO

A method for PDU session management. The method includes receiving, at an Access and Mobility Management function entity (AMF), a registration request message transmitted by a user equipment (UE), wherein the registration request message comprises a list of PDU sessions to be activated; and, in response to receiving the registration request message, the AMF transmitting to a session management function (SMF) a request message for requesting the SMF to activate UP resources for at least one of the PDU sessions identified in the list of PDU sessions.

PDU session management

Apparatuses and methods for configuration of downlink data measurement at mobile terminating early data transmission (MT-EDT) are provided. In one embodiment, a method implemented at a network node includes determining whether to measure a size of downlink data for a mobile terminating early data transmission, MT-EDT, procedure associated with a user equipment, UE; as a result of the determination, obtaining a measurement of the size of the downlink data; and optionally, sending the measurement of the size of the downlink data to a second network node.

Configuration of downlink data measurement at mobile terminating early data transmission (MT-EDT)

A method, UE, and computer programs are provided where the UE has multiple universal subscriber identity modules. Information is received from a first PLMN indicating there is one of mobile terminating (MT) signaling or data in the first PLMN while the UE is in a second PLMN. Responsive to receiving the information, a service request is sent to an AMF node of the second PLMN. A radio resource control (RRC) connection release is received from a RAN node in response to sending the service request. Responsive to receiving the RRC connection release, the second PLMN is left to be in the first PLMN.

Graceful leaving procedure for multiple USIM UE

Systems and methods are disclosed herein related simultaneous registration of wireless communication device having multiple Subscriber Identity Modules (SIMs) with two or more networks. In one embodiment, a method performed by a wireless communication device having multiple SIMs comprises registering with a first network associated with a first SIM and registering with a second network associated with a second SIM such that the wireless communication device is simultaneously registered with both the first network and the second network. The method further comprises providing, to a network node associated with the first network, capability information for the wireless communication device that indicates less than full capabilities of the wireless communication device. In this manner, the wireless communication device ensures that it will have sufficient resources to maintain simultaneous connections to both the first and second network.

Multi-SIM dynamic capabilities

Systems and methods for handling a wireless device in a Configuration Management (CM)-Connected state with Radio Resource Control (RRC) Inactive state are provided. In some embodiments, a method for performing a mobility transfer from a Fifth Generation network to an Evolved Packet System (EPS) network includes a 5G network node: receiving, from an EPS network node, a context request for context associated with a User Equipment (UE); determining data forwarding information associated with the UE; and sending, to the EPS network node, a context response comprising context information associated with the UE and data forwarding information associated with the UE. In this way, packet losses will be minimized leading to improved end user performance.

Handling of UE in CM-connected state with RRC inactive state

A method for notification control in a communication system performed by a core network is presented. The method comprising: establishing a PDU session; enabling a radio access network, RAN, to send a notification that notifying a UE, of the unfulfillment or re-fulfillment of QoS, for a QoS Flow in the PDU session using an AN-signaling based notification. The AN-signaling based notification including the unfulfillment or re-fulfillment of QoS parameters as defined in a QoS Flow description. The AN-signaling based notification further including expected QoS figures, an expected time interval and an accuracy of the notification. The UE/AF may further adapt their behavior according to the expected QoS provided by the AN.

Notification control in a communication system

Systems and methods are disclosed herein that relate to actions performed by a Radio Access Network (RAN) when redundancy is not available. In this regard, embodiments of a method performed by a RAN node are disclosed. In one embodiment, a method performed by a RAN node for RAN action when redundancy is not available comprises receiving, from a core network node, a request for a set of User Plane (UP) resources in the RAN. The method further comprises determining whether the request for the set of UP resources in the RAN can be met and sending, to the core network node, a response to the request for the set of UP resources that is based on whether the request for the set of UP resources in the RAN can be met.

Core network indication of radio access network action when redundancy is not available

A method in a target network node and a corresponding network node, for performing secure Mobile Terminated (MT) early data transmission (EDT) is provided. The method may comprise: sending a paging message to the wireless device, which has been suspended from a connection with a second network node, the paging message comprising an early data transmission (EDT) indication; receiving a random access preamble from the wireless device; obtaining context information of the wireless device; and resuming a data connection with the wireless device based on the context information.

Methods for handling context information for mobile-terminated early data transmission

Embodiments herein relate generally to a Control plane, CP, node, a method performed by the CP node, a Radio Access Network, RAN, node and a method performed by the RAN node. More particularly the embodiments herein relate to handling paging.

Nodes and methods for handling paging

Growing community of inventors

Ljungsbro, Sweden

Paul Schliwa-Bertling