Deutschetelekom Ag

Josep Colom Ikuno

Reinhard Lauster

Kurt Bischinger

Jakob Belschner

Gerd Zimmermann

Dieter Gludovacz

Stefanus Roemer

Manuel Paul

Mari Melander

Piotr Mikolaj Karas

Vasil Aleksiev

Sven Lachmund

Yvette Honorine Koza

Roland Jesske

Sacha Gastel

Helmut Imlau

Claudio Coletti

Bernard Tsai

Stefanus Römer

Piotr Karas

In order to provide the communication services to a user equipment comprising or applying secure edge protection proxy authentication: in a first step, a network function of a visited telecommunications network receives a request related to the user equipment, triggering a message towards a third secure edge protection proxy entity or functionality; and in a second step, the third secure edge protection proxy entity or functionality accesses a first secure edge protection proxy entity or functionality in an authenticated manner such that a message related to a second network identifier information is able to be sent, by the visited telecommunications network, to a network function in a first telecommunications network and accepted by the first telecommunications network.

Providing communication services to a user equipment using a user equipment subscription of a first network and subscription identifier information of a second network

A method for applying user equipment route selection policy information when operating a user equipment connected to a telecommunications network includes: in a first step, a considered data packet is received by a user equipment route selection policy functionality; and in a second step and based on the content of at least one modification and/or handling indication, one or more of the following actions is performed by the user equipment route selection policy functionality: the considered data packet is treated such as to be buffered, the considered data packet is modified and treated such as to be assigned to a specific protocol data unit session of the user equipment, a notification is transmitted, by the user equipment, to the core network of the telecommunications network, or the user equipment route selection policy information is modified.

Using or applying user equipment route selection policy information when operating a user equipment connected to a telecommunications network

A method for using or applying user equipment route selection policy information when operating a user equipment connected to a telecommunications network includes: in a first step, a user equipment route selection policy functionality determines whether a considered piece of user equipment route selection policy information is in accordance with or matches a user equipment route selection policy security policy indication; and in a second step and in case of the considered piece of user equipment route selection policy information being determined as contradicting or conflicting the user equipment route selection policy security policy indication, the considered piece of user equipment route selection policy information is not applied to user plane data, or a confirmation or rejection prompt is generated by the user equipment, prompting a user of the user equipment to either accept or to reject the considered piece of user equipment route selection policy information.

A method for operating or for modifying the operation of a user equipment within or as part of a telecommunications network includes: in a first step, the user equipment receives a request message, the request message being related to a specific service endpoint, and wherein the request message relates to or uses a specific application programming interface functionality provided by the specific service endpoint; in a second step, the specific service endpoint processes the received request message according to its content; and in a third step, preceding the first step, pieces of endpoint-related information regarding an application programming interface functionality of the specific service endpoint and/or regarding the address information related to the specific service endpoint are provided to a user equipment service endpoint registry functionality and are thereby exposed to be used by other nodes or instances of the telecommunications network.

Operation of a user equipment within or as part of a telecommunications network using a control plane functionality

A method for operating a user equipment within or as part of a telecommunications network includes: in a first step, an application or an application layer functionality transmits an application access request message to an application authorization function or functionality, the application access request message comprising at least one piece of credential information being related to the application or the application layer functionality; and in a second step, the application authorization function or functionality transmits—in case that the application access request message is determined, by the application authorization function or functionality, to be valid—an application access grant message to the application or the application layer functionality, such that access of the application or the application layer functionality to the at least one data transmission session is allowed only in case the application access request message is determined to be valid.

Operating a user equipment within or as part of a telecommunications network

A telecommunications system includes: a user equipment (UE); an access network (AN); and a core network (CN) composed of CN elements. A CN element comprises a set of UE route selection policy (URSP) rules, wherein each URSP rule comprises at least the following parameters: precedence value of URSP rule, a traffic descriptor, and at least a route selection descriptor containing a destination for matching traffic. The UE comprises one or more local resources which comprise: a local device or location in the UE, either physical or logical; and/or a local network address in the UE. A CN element is configured to instruct the UE with one or more URSP rules to route traffic matching the traffic descriptor to the destination local resource, local device, location or local network address in the UE. The UE is configured to direct the matching traffic to the destination in the URSP rule.

Referencing local resources in user equipment (UE) route selection policy (URSP) in a telecommunications system

A 5G network includes an access network (AN), a 5G Core (5GC), one or more campus network components each configured to run 5GC software associated to a campus network, and one or more public network components each configured to run 5GC software associated to a public network. The 5GC comprises a central cloud having functionally separated instances, including: a public 5GC instance configured to host the public network realized as a network slice; a private 5GC instance configured to host one or more campus networks, wherein the one or more campus networks are realized as Network Slices; and a data layer instance configured to host Unified Data Repository (UDR) functionality. Unified Data Management (UDM) functions of both 5GC instances are connected to the data layer instance. A Network Slice Selection Function (NSSF) contains the information about network slices present in both 5GC instances.

Network slicing based campus networks

A method for an emulation or interworking functionality between a first mobile communication network and a second mobile communication network includes: transmitting a specific modification within one of the first and second mobile communication networks regarding a corresponding plurality of network functions or services or network elements to an emulation function; and translating the specific modification within the one of the first and second mobile communication networks regarding the corresponding plurality of network functions or services or network elements to or into a corresponding specific modification of a first interface or second interface of the emulation function.

Realization of emulation or interworking functionality between a first mobile communication network and second mobile communication network

A 5G system (5GS) includes a Network Function (NF) Service Consumer and a functional entity, wherein the functional entity includes binding information stored therein and the binding information includes: Protocol Data Unit (PDU) sessions information and a list comprising one or more subscribers identities (IDs) and/or Policy Control Function (PCF) instance IDs. A method for querying PCF binding information for an address range in the 5GS includes: querying, from the NF Service Consumer to the functional entity, based on one or a combination of query parameters, for all binding information matching the query parameters; and notifying, from the functional entity to the NF Service Consumer, any binding information that matches the query parameters.

Method for querying and for subscribing PCF binding events for an address range in a 5G system

A method for an interconnection functionality between a first mobile communication network and a second mobile communication network includes: associating or assigning private identifier information to specific public land mobile network (PLMN) identifier information related to the second mobile communication network; and in respect of signalling messages and/or data traffic packets that are to be routed or to be addressed or to be processed, providing for or supporting, by a network identifier and number translating functionality, a replacement and/or a translation, in both directions, between the private identifier information and the specific PLMN identifier information related to the second mobile communication network.

Interconnection functionality between a first mobile communication network and a second mobile communication network

A method for an emulation functionality between a first mobile communication network and a second mobile communication network includes: implementing, by an emulation function and its first and second interfaces using a respective plurality of emulated network functions or services and emulated network elements, an exchange of messages between the first and second mobile communication networks, thereby mapping between equivalent capabilities or needs of respective network functions or services and respective network elements and providing for: implementation of first individual interfaces or first individual interface types between the network functions or services and respective corresponding emulated network functions or services in the form of application programming interfaces (APIs); and implementation of second individual interfaces or second individual interface types between the network elements and respective corresponding emulated network elements in the form of network standard-specific interfaces or protocols.

Emulation functionality between a first mobile communication network and a second mobile communication network

A communication system includes an external entity and a 5G system (5GS), wherein the 5GS comprises a 5G core (5GC), wherein the 5GC comprises a functional entity, a Unified Data Management (UDM), a Session Management Function (SMF), and a User Plane Function (UPF). A method for setting up expected communication behavior information in the system includes: performing, by the external entity, an Application Programming Interface (API) call via an API of the functional entity and setting up an expected communication behavior for a subscriber or set of subscribers, a data network name (DNN), a 5G virtual network (VN), a slice or a combination thereof that the functional entity is allowed to manage.

Method for setting up and for application of expected communication behavior and in communication system

A communication system for transmitting data packets includes: at least one Access Node (AN) connectable to a user equipment (UE); a User Plane Function (UPF) component; and a data network (DN). The UPF component is a distributed component and comprises: at least one User Plane Function Edge (UPF-E) component and a User Plane Function Core (UPF-C) component, the UPF-E component being connected between the at least one AN and the UPF-C component, and the UPF-C component being connected between the UPF-E component and the data network (DN) or another UPF-C; and a UPF Management (UPF-M) component configured to terminate an N4 interface.

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Korneuburg, Austria

Josep Colom Ikuno