Abstract: Methods and systems for transferring monitoring event information during a mobility procedure are provided. According to one aspect, a method for transferring monitoring event information during a mobility procedure comprises, at a first network node: receiving and storing subscription information indicating that a second network node has subscribed to get notification when there is a data delivery failure involving a User Equipment (UE), followed by the UE becoming reachable; detecting a data delivery failure involving the UE, and setting a flag to indicate that a data delivery failure involving the UE has occurred; receiving, from a third network node, a mobility related request; sending, to the third network node, a response to the mobility related request, comprising an indication that the third network node should notify the second network node when the UE becomes reachable and/or when then UE enters the IDLE state.

Abstract: Embodiments of the present disclosure provide methods and apparatus for group content delivery. A method in a communication network which comprises the content provider node and a broadcast-multicast service node, wherein the content provider node needs to deliver a message to a group of user equipments via the broadcast multicast service node. The method comprises obtaining one or more group identifiers. The method further comprises sending the one or more group identifiers to the broadcast-multicast service node.

Abstract: The present disclosure provides a method and an apparatus for notifying an application function node about a reliable data service (RDS) configuration of a network. The method implemented at an exposure function node includes: obtaining an RDS configuration of a terminal device; determining an RDS capability of a network; and sending a message including information about the RDS capability of the network to the application function node, if the RDS capability of the network is changed. The RDS capability of the network indicates whether the network supports the RDS. The method implemented at an application function node includes: receiving, from an exposure function node, a message including information about the RDS of the network, if the RDS capability of the network is changed. Data transmissions of the application function node with improper configuration may be avoided.

Abstract: The present disclosure provides a method (400) for supporting event monitoring in a first apparatus, comprising: sending (S401) to a second apparatus a monitoring request message including a monitoring type parameter indicating a requested monitoring event to be monitored for one or a group of User Equipment UEs; and receiving (S402) from the second apparatus a first monitoring response message or a first monitoring indication message including a monitoring event report of the requested monitoring event of the one or group of UEs.

Abstract: Method and apparatus in which a network exposure node receives, from a server, a first request for monitoring communication failure for at least one terminal device. The network exposure node obtains a connection identity (ID) for identifying a connection between the at least one terminal device and the server, based on the received first request. The network exposure node sends, to a subscriber management node or a policy decision node, a second request for monitoring communication failure for the at least one terminal device. The second request includes the obtained connection ID.

Abstract: Methods and apparatuses for data transmission. A method implemented at a first network function may comprise obtaining information related to network slice selection; and sending a reroute message to an access network node, wherein the reroute message including a container comprising at least one information element of the information related to network slicing selection.

Abstract: Methods and apparatuses are disclosed for exposure of monitoring event. According to an embodiment, a network exposure node receives a first request for subscribing to a plurality of monitoring reports for each of a group of terminal devices which include one or more terminal devices having both globally valid identifiers (IDs) and locally valid IDs. The network exposure node obtains, from a subscriber management node, the globally valid IDs and the locally valid IDs of the one or more terminal devices and a correspondence between the globally valid IDs and the locally valid IDs. In response to receiving from a mobility management node a monitoring report for a terminal device in the group of terminal devices, the network exposure node determines, for the terminal device, a current remaining number of monitoring reports based on the obtained IDs and correspondence.

Abstract: There is provided a method of operating a server of a first network. The method comprises generating (100) an indication of an action to initiate for handling a transfer of background data from the server to a user equipment if the transfer fails to satisfy one or more conditions of an assigned background data transfer policy for the transfer. The method also comprises transmitting (102) the indication for a node of a second network to acquire the indication and initiate the action if the transfer fails to satisfy the one or more conditions of the assigned background data transfer policy.

Abstract: A method for revoking authorization for an API invoker in a first apparatus. The method comprises sending to a second apparatus a request for revoking authorization of an Application Program Interface (API) for the API invoker with an API invoker ID, an API Exposing Function (AEF) identifier and at least one API identifier; and receiving a response to the request from the second apparatus wherein the API identified by the at least one API identifier is part of all the APIs authorized for the API invoker.

Abstract: The present disclosure provides a method (400) for supporting event monitoring in a first apparatus, comprising: sending (S401) to a second apparatus a monitoring request message including a monitoring type parameter indicating a requested monitoring event to be monitored for one or a group of User Equipment UEs; and receiving (S402) from the second apparatus a first monitoring response message or a first monitoring indication message including a monitoring event report of the requested monitoring event of the one or group of UEs.

Abstract: The present disclosure provides a method in a network node for facilitating Non-Internet Protocol Data Delivery, NIDD. The method includes: receiving from a server a request for NIDD downlink data transfer to a terminal device; triggering, when no Packet Data Network, PDN, connection is available between the terminal device and the network node, establishment by the terminal device of a PDN connection with the network node; and notifying the server when the PDN connection has been established.

Abstract: A SC informs a communication service (CS) node (e.g., GCS AS) of a data transfer start time for the bearer (i.e., the user plane ready time for the bearer). Additionally, in some embodiments, the SC informs the communication service node (e.g., GCS AS) as to a data transfer stop time for the bearer. This provides a distinct advantage because the CS node will now have information as to when it should start (and stop) data delivery, thereby leading to a higher quality of experience (QoE) of MBMS delivery.

Abstract: The present disclosure relates to a serving gateway control plane function to manage a plurality of serving gateway user plane functions, and a mobility management entity to communicate with the serving gateway control plane function. Embodiments may provide a method for the serving gateway control plane function. The method includes: connecting with the plurality of serving gateway user plane functions; storing serving area information of the plurality of serving gateway user plane functions; selecting a first serving gateway user plane function among the plurality of serving gateway user plane functions for a user equipment, according to location of the user equipment and the serving area information of the plurality of serving gateway user plane functions; and sending serving area information of the first serving gateway user plane function to a mobility management entity.

Abstract: A monitoring node (MN) may wish to receive a location report whenever a particular UE (or any UE included in a particular group of UEs) enters a specific geographic area (e.g., a city, a neighborhood, a street, etc.) specified by the MN. Accordingly, in one aspect there is provided a method for providing location information to the MN. In one embodiment, the method includes an exposure function (EF) receiving a request message transmitted by the MN, the request comprising an ID identifying at least one UE, and further comprising GAI defining a geographic area, wherein the request message requests that the monitoring node be provided with a notification when it has been discovered that any UE identified by the ID has moved into (or out of) the geographic area.

Abstract: Systems and methods for detecting, e.g., that a Network Function (NF) service consumer in a core network of a cellular communications system has restarted are disclosed. In some embodiments, a method of operation of a NF service consumer in a core network of a cellular communications system comprises sending, to a NF service producer, a message comprising information related to a unit of the NF service consumer.

Abstract: The present disclosure provides a method (400) for supporting event monitoring in a first apparatus, comprising: sending (S401) to a second apparatus a monitoring request message including a monitoring type parameter indicating a requested monitoring event to be monitored for one or a group of User Equipment UEs; and receiving (S402) from the second apparatus a first monitoring response message or a first monitoring indication message including a monitoring event report of the requested monitoring event of the one or group of UEs.

Abstract: The present disclosure provides methods in network entities, a method in a network exposure entity, and corresponding network entities and network exposure entity for data delivery configuration. The method in one of the network entities for data delivery configuration comprises: configuring a predefined external group ID which identifies a group of UEs to which data are to be delivered by the network entity and predefined configuration information which indicates a configuration to be applied for the group of UEs that enables a delivery of the data to the group of UEs; and transmitting the predefined external group ID and the configuration information to a network exposure entity. The present disclosure further provides corresponding computer readable medium.

Abstract: Systems and methods for detecting, that a Network Function (NF) service consumer in a core network of a cellular communications system has restarted are disclosed. A method of operation of a NF service consumer in a core network of a cellular communications system comprises sending, to a NF service producer, a message comprising information related to a unit of the NF service consumer.

Abstract: Embodiments of the disclosure provide a method performed by a broadcast/multicast server for a communication network. The method comprises: receiving, from an application server, a request to establish a broadcast/multicast bearer in the communication network; allocating resources associated with the broadcast/multicast bearer in the communication network; and sending, to the application server, a response message comprising an indication of whether the allocation of the resources associated with the broadcast/multicast bearer is ongoing or not. Corresponding apparatus and methods and apparatus in the application server, are also provided.

Abstract: Systems and methods for detecting, that a Network Function (NF) service consumer in a core network of a cellular communications system has restarted are disclosed. A method of operation of a NF service consumer in a core network of a cellular communications system comprises sending, to a NF service producer, a message comprising information related to a unit of the NF service consumer.