Telefonaktiebolaget Lm Ericsson (publ)

Optis Cellular Technology, LLC

Göran Rune

Gunnar Mildh

Jari Tapio Vikberg

Magnus Hallenstål

Erik Westerberg

Pål Frenger

Martin Hessler

Walter Müller

Stefan Rommer

Magnus Norberg Olsson

Per Hans Willars

Per Synnergren

Ann-Christine Sander

Tomas Nylander

Andreas Witzel

Gert Jan Van Lieshout

Erik A Eriksson

Attila Mihály

György Miklós

Stefan Parkvall

Johan Rune

Paul Schliwa-Bertling

Nicklas Johansson

Fredrik Gunnarsson

Erik Bengt Dahlman

Magnus Stattin

Mats Näslund

Dinand Roeland

Thomas Walldeen

Niclas Wiberg

Pontus Wallentin

Miguel Angel Muñoz De La Torre Alonso

János Farkas

Christofer Lindheimer

Jari Arkko

Håkan Axelsson

Lars-Bertil Olsson

Mats Ola Stille

Balázs Varga

Stefan Johansson

Håkan Palm

Miguel Angel Puente Pestaña

Gergely Pongrácz

Göran Hall

Elena Myhre

Samy Touati

Göran Eriksson

Rodrigo Alvarez Dominguez

Per Johan Beming

Ingrid V Nordstrand

Henrik Basilier

Torbjörn Cagenius

Lennart Bror Norell

Gunnar L Nilsson

Thomas Johansson

Arne Pehrsson

Ulf Mattsson

Zhang Fu

Gert-Jan Van Lieshout

Mathias Cramby

Häkan Axelsson

Magnus Westerlund

Gunnar Bark

Mohit Sethi

Miljenko Opsenica

András Zahemszky

Jesus-Angel de-Gregorio-Rodriguez

Tomas Mecklin

Le Wang

Heidi-Maria Back

Anders Henriksson

Hakan Axelsson

Alain Guy Maupin

Mojgan Fadaki

Peter Bleckert

Bo S P Wallentin

Lars Håkan Palm

Anna Fallgren

Per H A Willars

Paolo Guidotti

Mikael Nordman

Bo Nyberg

Par Beming

Patrick Sellstedt

Lars Hangkan Palm

Erik Schon

Nicklas Johannson

Walter MÜLLER

Jesus-Angel De Gregorio Rodriguez

Lennart Norell

Magnus HALLENSTÅL

Anders Pe Henriksson

Johan Lagneborg

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 a message directly to a user plane core network node providing functionality for the connection via the radio access network node, the message comprising 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. The user plane core network node has access to a data storage layer shared between a plurality of user plane core network nodes, the data storage layer storing respective contexts for the sessions of a plurality of wireless devices, including the wireless device.

Tunnel initiation in a communications network

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.

The present invention relates to a method and wireless device for supporting verification of a device category as well as to a method and a network node. It is desired to quickly allow finding out whether a wireless device should be allowed to access a network by verifying a device category. The method at the device comprises receiving from a network node a verification message including a random bit sequence; calculating a verification signature from the random bit sequence by using a verification function assigned to the device category; and transmitting the calculated verification signature to the network node in an uplink message of a random access procedure or in the first uplink message following a random access procedure so as to allow verification of the device category using the verification signature at a network node.

Wireless device and network node for verification of a device category as well as corresponding methods in a wireless communication system

Embodiments of a method in a core network, corresponding embodiments of methods in a service consumer and service producer, and corresponding embodiments of a service consumer and service producer are disclosed. In some embodiments, a method in a core network comprises, at a service consumer, generating security information for a subscription to an event and sending a subscribe message comprising the security information to a service producer of the event. The method further comprises, at the service producer, receiving the subscribe message and sending a notification message to the service consumer, where the notification message comprises the event and either: the security information or information derived from the security information. The method further comprises, at the service consumer, receiving the notification message and verifying the notification message based on the security information or the information derived from the security information, comprised in the notification message.

Towards robust notification mechanism in 5G SBA

Methods and devices of enabling paging of a wireless communication device. In an aspect, a method of a node configured to provide core network user plane functionality in a communications network is provided to enable paging of a wireless communication device being in an idle state. The method includes receiving an indication that data is to be transmitted in downlink to the wireless communication device, identifying a radio access network control plane function, and sending a downlink data notification comprising an identifier of the wireless communication device and of a core network control plane function configured to provide mobility management where the wireless communication device currently is registered, thereby enabling for the identified radio access network control plane function to forward the download data notification to the identified core network control plane function configured to provide mobility management to enable the identified core network control plane function configured to provide mobility management to page the wireless communication device.

Paging of idle state wireless communication devices

Disclosed is a method performed by a network node () of a wireless communication network () comprising a first () and a second () core network node and a first () and a second () base station (). A session of a wireless device () comprises data packets routed via a plurality of anchor network nodes () from a data network (). In connection with the wireless device () handing over from the first base station () and the first core network node () to the second base station () and the second core network node (), the method comprises receiving information of the number of the plurality of anchor network nodes () via which data packets of the session are routed, receiving data packets from the plurality of anchor network nodes (), receiving an end marker of each of the plurality of anchor network nodes (), each end marker indicating a last data packet of one of the plurality of anchor network nodes routed via the first core network node (), and when the number of received end markers equals the number of the plurality of anchor network nodes, triggering to send to the wireless device () any data packets related to the session not routed via the first base station stored in a buffer of the second base station.

Methods and network nodes for handling a session comprising data packets to be transmitted to a wireless device

Methods of connecting a wireless communication device to a user plane in a wireless communication network and devices performing the methods. In one aspect, a network node configured to connect a wireless communication device to a user plane in a wireless communication network comprises a processing unit and a memory containing instructions executable by the processing unit, wherein the network node is to provide core network user plane functionality and/or radio access network user plane functionality, via an interface.

Methods and devices for connecting a wireless communication device to a user plane in a wireless communication network

A method may be provided to operate a core network entity of a wireless communication network. A session establishment request may be received from a wireless terminal through a base station node. Responsive to receiving the session establishment request, the core network entity may determine that a breakout protocol data unit session is to be established for the wireless terminal. Responsive to determining that the breakout PDU session is to be established for the wireless terminal, a request may be transmitted to the base station node, and the request may include an indication that the breakout PDU session is to be established for the wireless terminal. Related methods may be provided for base station nodes, wireless terminals, and central controllers.

Method for providing a breakout PDU session for local IP access

Systems and methods that are particularly well-suited for service-based core network endpoint authentication are disclosed. In some embodiments, a method of operation of a network node implementing a second network function in a core network of a cellular communications system comprises receiving, at a main service of the second network function, a request from a first network function for a desired service via Hypertext Transfer Protocol/Representational State Transfer (HTTP/REST) signaling. The request comprises information that identifies one or more delegate endpoints of the first network function that expose one or more delegate services, respectively, of the first network function for providing the desired service using one or more different communication styles. The method further comprises initiating the desired service using a selected delegate endpoint from the one or more delegate endpoints identified by the information comprised in the request.

Service-based 5G core authentication endpoints

In response to a transition from a previous operational state to a current operational state of a given network partition of a plurality of network partitions of a core of a cellular network, a respective entry of a registry of the plurality of network partitions is updated. Network partition selection for a terminal is effected by participating in a communication of at least one selection control message corresponding to at least one entry of the registry.

Network partitions

A method implemented in a user equipment (UE) includes connecting to a WLAN access point. The method further includes constructing a domain name for a packet system network, the domain name including network partition information for the packet system network. The method further includes transmitting, to a DNS server via the WLAN access point, the constructed domain name. The method further includes receiving, from the server, at least one address corresponding to a network node associated with the network partition information.

Methods and devices for selecting network partition in untrusted WLAN access

A method performed by a transmitting communication device for handling communication for a wireless device in a communication network. The communication network comprises one or more networks comprising partitioned sets of functionalities wherein a first set of functionalities belongs to a first network slice supporting the wireless device, and which first set of functionalities is separated from another set of functionalities out of a total set of functionalities in the one or more networks. The transmitting communication device transmits a Non Access Stratum Protocol Data Unit (NAS PDU) and an indication over a signalling connection carrying NAS PDUs, to a receiving communication device, which indication indicates that the NAS PDU is associated with the first network slice.

Transmitting communication device, receiving communication device and methods performed thereby

A core network node identifies a non-USIM based authentication procedure to be utilized by a wireless communication device, WCD, being served by the core network node. The node obtains a session key associated with the identified non-USIM based authentication procedure. The node converts the session key associated with the identified non-USIM based authentication procedure to i) a first key, K, for use by the WCD and a base station serving the WCD to derive an encryption or integrity protection key, K, for enabling encryption or integrity protection of a communication between the WCD and the base station or ii) a second key, K, for use by the WCD and the core network node to derive the first key K. The node then send i) Kto the base station or ii) Kto another core network node that is configured to derive Kfrom K.

Method, apparatus, and system for providing encryption or integrity protection in a wireless network

According to an aspect of the teachings herein, dynamic cell activation uses the spectrum of a spectrum owner to provide wireless communication services in a location that may not be served by the spectrum owner. For example, a base station determines which one of two or more network operators is targeted by a wireless device requesting access, and correspondingly activates communication services for the device, using spectrum owned by the targeted network operator. Advantageously, the cell(s) may not be persistent and instead may be provided only when access is requested and then only in the spectrum of the targeted network operator(s). This approach offers power savings as compared to providing persistent cells for multiple network operators. Further, the contemplated arrangement makes it economic for third parties and network operators to use of operator-owned spectrum that might otherwise remain unexploited in the involved locations.

Dynamic multi-operator spectrum activation

Growing community of inventors

Linköping, Sweden

Göran Rune