Abstract: The disclosure relates to a method executed in a domain name system (DNS) proxy, and to a DNS proxy, apparatus or system for application server (AS) discovery for edge computing in a mobile network. The method comprises receiving a DNS query from a user equipment (UE) with an application fully qualified domain name (FQDN). Based on FQDN, retrieving a location of the UE that sent the DNS query; adding subnet(s) or full IP address(es) of one or more preferred location for accessing to a data network (DN) as one or more Extension mechanisms for DNS (EDNS) client subnet (ECS) options in the DNS query; forwarding the DNS query to a mobile network operator (MNO) DNS; receiving a DNS response and based on the DNS response determining an AS site and AS IP address(es); requesting traffic steering and sending the DNS response to the UE.

Abstract: Various embodiments of the present disclosure provide a method for traffic detection. The method which may be performed by a first network node includes receiving a message from a second network node. The method further includes determining packet flow description information for traffic detection according to the message. The packet flow description information may indicate a combination criterion for two or more packet flow descriptions, and/or a protocol matching criterion for a domain name in a packet flow description. According to the embodiments of the present disclosure, the packet flow description definition can be extended to support more accurate traffic detection.

Abstract: The disclosure herein relate to vertical application in edge computing. A method performed by a first network function implementing Edge Enabler Server (EES) in an Edge Data Network (EDN). The method comprises receiving, from a second network function implementing Edge Application Server (EAS) in the EDN, a registration request message comprising information indicating a first list of associated EAS information. Based on the associated EAS information, the UE performs a joint EAS discovery and selection for vertical application in an edge deployment, thus both application enabler client in the UE and application specific server communicates with the same application enabler server.

Abstract: The disclosure relates to User Equipment (UE) Identifier (ID) exposure. In an embodiment, there proposes a method performed by a first network function implementing application data management function in a data network, comprising: receiving, from a UE, a first message comprising UE information indicating a dynamic UE Identity; and based on the received UE information, obtaining, from a second network function in a mobile communication network, a static UE ID to be exposed. With embodiments herein, the solution provides a way to obtain a static UE ID for the UE so that UE can identify itself with such ID to further communicate with the Edge Enabler Server or the Edge Configuration Server.

Abstract: Methods and apparatuses for parameter configuration. A method implemented at a network device may comprise receiving from a server a parameter provisioning request including one or more communication pattern (CP) parameter sets associated with respective CP parameter set identifiers. The method may further comprise generating a parameter provisioning response including respective result of at least one of the one or more CP parameter sets indicating whether the at least one of the one or more CP parameter sets is provisioned successfully or not. The method may further comprise sending the parameter provisioning response to the server.

Abstract: Embodiments of the present disclosure provide method and apparatus for setting up session with required QoS. A method performed by a server comprises sending a packet flow description (PFD) management request to an exposure function entity. The PFD management request comprises at least one PFD comprising information used for traffic detection of a specific application service and an application identifier corresponding to the specific application service. The method further comprises providing specific quality of service (QoS) information and the application identifier corresponding to the specific application service for requesting data session with the specific QoS to a policy function entity.

Abstract: A method for a user equipment (UE) configured to communicate with an application function (AF) via a communication network is provided. The method comprises sending, to the AF, an application service request including: a second identifier (GPSI) specific to one or more applications, including an application associated with the UE and the AF; and information (app-info) associated with the second identifier and descriptive of the one or more applications. The method further comprises authenticating the AF based on an application-specific key (KAF) derived from a security key (KAKMA) associated with the UE; and receiving, from the AF, an application service response indicating whether the second identifier (GPSI) matches a corresponding second identifier (GPSI*) derived from the information associated with the second identifier.

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 (300) in a Vertical Application Layer, VAL, server. The method (300) includes: transmitting (310), to a Network Resource Management, NRM, server, a monitoring event subscription request. The monitoring event subscription request contains: a list of identities, IDs, of one or more VAL users or VAL User Equipments, UEs, for which event monitoring is requested, or a VAL group ID of a group of one or more VAL users or VALUEs for which event monitoring is requested, and a monitoring profile ID corresponding to a list of one or more events to be monitored, or event details indicating a list of one or more events to be monitored. The method (300) further includes: receiving (320), from the NRM server, a monitoring event subscription response as a response to the monitoring event subscription request.

Abstract: A method and an apparatus for providing configuration for serving terminal device. A first aspect of the present disclosure provides a method performed by a first network function. The method may comprise: transmitting to a second network function a request for providing at least one service parameter for a user equipment (UE) or a group of UEs, and receiving from the second network function a response about whether the request is authorized. After a first network function transmits a request for providing at least one service parameter for a terminal device, the first network function may be aware about whether the request is authorized.

Abstract: The present disclosure provides a method (600) in a source Edge Application Server, EAS. The method (600) includes: transmitting (610) a request for EAS discovery to a source Edge Enabler Server, EES: receiving (620), from the source EES, a response containing information indicating one or more discovered EASs: determining or selecting (630) one of the one or more discovered EASs as a target EAS: and transmitting (640) information indicating the selected target EAS to the source EES.

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: Embodiments of the present disclosure provide a method and an entity for checking port consistency of NIDD message. A first aspect of the present disclosure provides a method performed at a first entity (100), comprising: receiving (S101), from a second entity, a non-internet protocol data delivery, NIDD, message including one or more RDS port numbers; and determining (S102) whether the one or more RDS port numbers are within a configured RDS port list. According to embodiments of the present disclosure, network resources for transmitting the invalid NIDD data may be saved, and undesired actions in the communication system may be avoided.

Abstract: The present disclosure proposes methods and network elements for managing background data transfer (BDT). A method for managing BDT comprises: receiving, from a second network element, a first request for subscription of notification for network performance recovery; determining that network performance is recovered from a degraded network performance; and transmitting, to the second network element, a first notification for network performance recovery.

Abstract: A method implemented at a network exposure node is provided. The method includes: receiving, from a first node, a first message for deleting an event subscription for at least one user equipment, UE; determining whether the at least one UE is an individual UE or a group member UE; sending a second message to a second node, when the at least one UE is a group member UE, wherein the second message includes UE identification information of the at least one UE.

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: A first method performed by a first network function implementing Edge Enabler Server (EES). The first method comprises receiving a first request message comprising information regarding exposure context information, from a second network function implementing Edge Application Server (EAS). The first method further comprises transmitting a second request message for retrieving the exposure context information to a third network function implementing EES, in response to the information regarding exposure context information. The first method further comprises to receive a first response message including the retrieved exposure context information from the third network function. The first method further comprises to transmit a second response message including information regarding the retrieved exposure context information to the second network function. The disclosed techniques offer an option to transfer EDGE-3 exposure context between the EESs so that the existing subscriptions can be re-used.