Abstract: 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 or resume a connection to the telecommunications network via the radio access network node, selecting a core network user plane function for the connection to the telecommunications network; and initiating establishment of a user-plane tunnel for the connection between the radio access network node and the selected core network user plane function.

Abstract: The present invention relates to a method for operating a service application entity (100) configured to provide a service to a mobile entity (10) in a mobile communications network based on a client session, the method comprising: —determining a context information which comprises at least information required by another service application entity (400) providing the same type of service to continue the client session with the mobile entity, —pushing the context information towards a radio access node (300) of the mobile communications network to which the mobile entity is currently connected.

Abstract: 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.

Abstract: A node (110) of a communication network forwards a first data packet (301) from a server (150) to a client (10). Further, the node detects a congestion affecting the first data packet (301). Further, the node (110) generates at least one second data packet (306) addressed to the server (150). The at least one second data packet (306) indicates the detected congestion and comprises verification information enabling the server (150) to verify that the indicated congestion relates to the first data packet (301).

Abstract: A network provides PDU sessions between wireless devices and data networks. UPFs in the network handle the user planes of these PDU sessions, while SMFs in the network manage the PDU sessions. The SMFs have dedicated interfaces for signaling sessions to the UPFs. In the occasion that managing of a PDU session has to be transferred from one SMF to another SMF, the first SMF has to release the signalling session with the UPF for the PDU session, and a second SMF has to re-establish the signaling session with the UPF for the same PDU session. To avoid that during the transfer of the management responsibility transfer the wireless device experiences a hick-up in the PDU session the first SMS includes a control element in the release message to the UPF, indicating to the UPF that the signaling session for the PDU session will be re-established by a second SMF, and that the UPF shall continue the handling of the PDU session till re-establishment.

Abstract: A redirect server is configured in a service-based architecture, SBA, domain of a wireless communication network. The redirect server may receive configuration signaling indicating that a location of a resource or service in the SBA domain has changed from an old location to a new location. The redirect server receives, from a requestor in the SBA domain, a request that targets the old location of the resource or service in the SBA domain. The redirect, responsive to the request, transmits, from the redirect server to the requestor, a response that redirects the requestor to the new location of the resource or service in the SBA domain.

Abstract: The present invention faces the issues of re-selection of another NF Service instance (103, 201) for a subsequent request (S-520, S-535) with a same data consistency (Consistency 1) as a previously selected NF Service instance (101). To solve this issue, the present invention provides for identifying at configuration, based on the deployment and on the Storage solution for the Session/context data, which instances (101, 103, 201) of the same service type have access with strong consistency to the same data, and provide this information to the consumer (40), so it is allowed to prioritize selection of an alternative NF service instance that supports strong consistency, whenever possible.

Abstract: A method of detecting race conditions in a service based communication architecture network (600) comprising a Message Broker, MB, function (210) mediating messages, relating to service procedures, between one or more services available to a User Equipment, UE, (11) communicating within the service based communication architecture network (600). The method comprising receiving, by the MB (210), from the services, a message relating to at least one of start and end of a service procedure. Determining, by the MB (210), based on the received message, that the service procedure causes a race condition, and intervening, upon detection of a race condition, in executing the service procedures. There is also provided a Message Broker, MB, function (210) arranged for detecting and handling race conditions, a communication network (600) comprising an integrated message broker and race condition handler (210) and a computer program product.

Abstract: Transferring context data from a first network functional set, NFS, to another. A method and apparatuses provide for transferring restoration context data from a first NFS toward a second NFS. This method includes receiving, at the first NFS from a context transfer requester, a transfer request indicating transfer of context data toward the second NFS; transmitting, from the first NFS toward a network repository function, NRF, a context transfer request indicating transfer of context data from the first NFS to the second NFS; transmitting, from the NRF toward the first NFS, a context transfer response indicating a status of the first NFS; notifying, from the NRF toward a network function, NF, service consumer, of transfer information related to the transfer of context data from the first NFS to the second NFS; transferring, from the first NFS toward the second NFS, restoration context data; and storing the restoration context data.

Abstract: A method of registering a service in a telecommunication network having a Service Based Architecture, SBA. The telecommunication network has a Service Collection Function, SCF, including a plurality of distinct SBA services and including a Collection Controller, CoC, for registering and discovering the plurality of distinct SBA services within the SCF. The telecommunication network further includes a Network Repository Function, NRF, for registering and discovering services within the telecommunication network. The method includes the steps of receiving, by the CoC, from an of the distinct SBA services, a registration message for registering a service, determining, by the CoC, that the service is to be provided within the SCF, refraining, by the CoC, from forwarding the registration message to said NRF based on the determination, registering, by the CoC, the service in the CoC for discovering the service by any of the plurality of distinct SBA services within the SCF.

Abstract: There is a provided herein a proxy at a border between two transport domains, the proxy arranged to deliver packets to a communications device in a first transport domain; the packets received from a server in a second transport domain. The proxy is arranged to: receive a packet from the server, the packet directed to the communications device; and forward the packet to the communications device and reply to the server with a traffic handling offer message, the traffic handling offer message including a plurality of traffic handling options. The proxy is further arranged to receive a selection of a traffic handling option from the server; and apply the selected traffic handling option to packets sent from the server to the communications device via the proxy.

Abstract: A method to operate a first service instance set associated with a first storage resource node. The first service instance set may be for a service, and the first storage resource node may store context data for the service. An access context request may be transmitted to the first storage resource node, and the access context request may include an identification for a subgroup of context data being requested from the first storage resource node. An access context response may be received from the first storage resource node. The access context response may correspond to the access context request, and the access context response may include the subgroup of context data corresponding to the identification.

Abstract: A service controller receives an operation request for a service for a consumer node of a communication network, the operation request including a context identifier referring to a context related to the operation request. The service controller forwards the operation request to a first service instance set being identified by the service controller as handling the context related to the operation request. Responsive to determining that the first service instance set is unreachable or unavailable, the service controller selects a second service instance set as a candidate to handle the context related to the operation request. The operation request for the service is then forwarded to the second service instance set.

Abstract: A controller node of a communication network may transmit a move context request to initiate a move of context information associated with a context identifier from a first storage resource node associated with a first service instance set for a service to a second storage resource node associated with a second service instance set for the service. Accordingly, a move context communication may be transmitted from a first service instance set associated with a first storage resource, wherein the move context communication includes context information from the first storage resource to be moved from the first storage resource node to a second storage resource node associated with a second service instance set.

Abstract: A technique for concurrency control of transactions in a system comprising a plurality of application instances accessing a database system is provided.

Abstract: A technique for concurrency control of transactions in a system comprising a plurality of application instances accessing a database system is provided. A method implementation of the technique is performed by the database system and comprises receiving, from a first application instance of the plurality of application instances, a transaction start request indicating a start of a transaction to lock data stored in the database system against access requests not belonging to the transaction while the transaction is ongoing, receiving, from a second application instance of the plurality of application instances, an access request to at least a portion of the data while the transaction is ongoing, and controlling acceptance of the access request based on checking whether the access request belongs to the transaction.

Abstract: A method for handling a service discovery request for a service provided by a service based architecture communications network. The service discovery request is received from a client, the received service discovery request has a plurality of service related parameters. A service identifier is assigned to the service discovery request, the identifier linking the received service discovery request to the plurality of service related parameters. The plurality of service related parameters are stored. A service discovery response is transmitted to the client in response to the received service discovery request. A subsequent request related to the service is received. The plurality of service related parameters for the subsequent request based on the received service identifier present in the subsequent request and the stored plurality of service related parameters is determined. A list of processing entities capable of handling the subsequent request related to the service is determined.

Abstract: A wireless communication network (12) includes one or more nodes (10, 40) that individually or cooperatively prevent affiliated communication modules (14) from being handed over at the same time. Affiliated communication modules (14) provide a machine, device, or other entity (16) with redundant access to the network (12) and preventing the simultaneous handover of affiliated communication modules (14) within the network (12) reduces the chance that the involved entity (16) will lose radio connectivity or experience an interruption in its communications. Although not limited to Critical Machine Type Communication, C-MTC, applications, such operations improve connection redundancy and reliability for C-MTC entities that use two or more communication modules (14) for redundant access to a wireless communication network (12).

Abstract: An operation request, including a context identifier, is received for an instance of a service in a service instance set. An update is transmitted for information relating to a context associated with the context identifier at a set restoration storage resource node using the instance of the service responsive to receiving the operation request. Responsive to determining that a context associated with the context identifier is unavailable from a storage resource associated with the service instance set, information relating to the context is accessed from a set restoration storage resource. The context is updated at the storage resource associated with the service instance set responsive to receiving the operation request and responsive to receiving the information relating to the context from the set restoration storage resource.

Abstract: A system and method for server relocation in a packet data network. A transport protocol session is established between a client 20 and server 14_1 to transfer content from the server to the client in data packets. As well as transmitting data packets to the client, the server additionally transmits declarative information as signaling packets. The declarative information includes an identifier of the content being transmitted in the ongoing session. This allows other servers 14_2 with the same content to identify the existence of the session and gives them the opportunity to volunteer to take over the session, for example if they can see that the client is now closer to them than the server currently serving the content. The two servers can then coordinate transfer of the session, whereafter the session continues with the second server transmitting content to the client.