Abstract: Disclosed herein is a method performed by an AMF entity in a Visited Public Land Mobile Network, VPLMN, entity serving a roaming UE, the method comprises: obtaining, by the AMF entity, a subscribed UE-AMBR for the UE; sending, by the AMF entity, an Access Management, AM, Policy request message towards a Visited Policy Control Function, V-PCF, entity in the VPLMN to establish or update an AM Policy for the roaming UE; receiving by the AMF entity in response to sending the AM Policy request message, an AM Policy response message sent by the V-PCF entity and comprising Access and mobility related policy information that includes a serving network UE-AMBR for the UE decided by the V-PCF entity; and deploying the serving network UE-AMBR instead of the subscribed UE-AMBR by sending the policy control information including the determined UE-AMBR to a RAN node in the serving network.

Abstract: Disclosed herein is a method, a wireless device and a session management node for IP version selection for a PDU session requested to be established by a WCD, that supports PDU sessions of both IPv4 and IPv6 and that is configured to operatively communicate via a RAN with a SM node in a core network lot, the method being performed by the WCD comprises: sending S110 a first PDU session request message towards the SM node requesting establishment of a first PDU session, which request message comprises IP-version information indicating that the IP version of the requested first PDU session should be any one of IPv4 or IPv6; and receiving S130, S140, in response to sending the first PDU session request message, a first response message, which first response message comprises WCD information indicating the IP-version (i.e. IPv4 or IPv6) that has been selected for the requested first PDU session.

Abstract: Methods and apparatuses are disclosed for implementing mobile terminating call. According to an embodiment, a subscriber management node obtains, from a mobility management node, an indication that indicates whether a packet switching (PS) connection is currently active for a terminal device. The subscriber management node receives, from a server, a first query about whether a PS access domain is to be used for a terminating call to the terminal device. The subscriber management node sends a response to the server based on the obtained indication.

Abstract: The present disclosure relates to a method, an apparatus for a synchronization of a status of a QoS flow in a communication system. A method is performed at a terminal device, for a synchronization of a status of a quality of service, QoS, flow in a communication system. The method comprises: deleting (S101) the QoS flow locally; marking (S102) a status of the QoS flow as being deleted and not synchronized; and transmitting (S103) a protocol data unit, PDU, session modification request to synchronize the status of the QoS flow. According to embodiments of the present disclosure, when the status of the QoS Flow is changed by one of the terminal device or the network side in some scenarios, the status of the QoS Flow can still be synchronized.

Abstract: The disclosure relates to systems and methods enabling an SMF (208) to control new forwarding behavior in the UPF (206) to support locally switched and Nx-based forwarding.

Abstract: Embodiments here in relate to methods for message handling performed by an Access and Mobility Management function, AMF, and a User Equipment, UE, as well as a corresponding AMF and UE. Particularly, embodiments herein relate to methods for handling service requests performed by an Access and Mobility Management function, AMF, and a User Equipment, UE, as well as a corresponding AMF and UE.

Abstract: Methods are provided to operate an SMF node. A request to create a session for a wireless device is received. A communication establishment request is transmitted to an NEF node responsive to receiving the request to create the session for the wireless device, wherein the communication establishment request includes UPF node information for a tunnel between a UPF node and the NEF node to be used for the session for the wireless device. A communication establishment response is received from the NEF node, wherein the communication establishment response includes NEF node information for the tunnel between the UPF node and the NEF node to be used for the session for the wireless device. A tunnel information update is transmitted to the UPF node after receiving the communication establishment response, wherein the tunnel information update includes the NEF node information for the tunnel between the UPF node and the NEF node.

Abstract: Methods and apparatuses are disclosed for facilitating roaming of terminal device. According to an embodiment, a session management node operable in a home network receives, from another session management node operable in a visiting network, a quality of service (QoS) policy per a roaming agreement between the visiting network and the home network during establishment of a protocol data unit (PDU) session for a terminal device. The session management node retrieves, from a subscriber management node, subscribed QoS parameters of the terminal device. The session management node obtains a result that is generated based on the QoS policy per the roaming agreement and the subscribed QoS parameters of the terminal device.

Abstract: Embodiments herein related to notifications concerning UE unreachability. Especially, the embodiments herein provide methods performed by an Access and Mobility Management Function, AMF, as well as a corresponding Access and Mobility Management Function, AMF, relating to notifications concerning UE unreachability.

Abstract: Disclosed herein is a method for implementing conditional packet forwarding control rules, performed by User Plane Function (UPF). The method comprises: receiving, from a Control Plane Function (CPF) a packet forwarding control rule comprising one or more rule enforcement conditions; and applying the packet forwarding control rule according to the rule enforcement condition(s).

Abstract: Methods and functions for handling a UE that is in an idle state with respect to at least one access type e.g., 3GPP access or non-3GPP access.

Abstract: The embodiments herein relate to a method performed by a PGW (108) for handling a UEs (101) access to an EPC service via a non-3GPP access network (103). During a request for connecting the UE (101) to the non-3GPP access network (103), the PGW (108) receives identity information which indicates an identity of an AAA node (710) from a non-3GPP access gateway (705). The PGW (108) selects the AAA node (710) which was indicated in the received identity information. The PGW (108) transmits, to the selected AAA node (710), a request message for the UE (101). The request message is a request for authorization of the UE (101) to access the EPC service via the non-3GPP access network (103).

Abstract: Disclosed herein is a method for implementing conditional packet forwarding control rules, performed by User Plane Function (UPF). The method comprises: receiving, from a Control Plane Function (CPF) a packet forwarding control rule comprising one or more rule enforcement conditions; and applying the packet forwarding control rule according to the rule enforcement condition(s).

Abstract: A method performed by a serving Access and Mobility Management Function (AMF) serving a wireless communication device. The method includes receiving, from a target AMF, a request for information regarding the wireless communication device. The method also includes submitting, in reply to the request for information, a current user equipment (UE) context of the wireless communication device and an identifier of an ongoing non 3rd Generation Partnership Project (non-3GPP) access Protocol Data Unit (PDU) session for the wireless communication device. The method further includes notifying a Non-3GPP Interworking Function (N3IWF) to remove the current UE context, wherein the N3IWF is configured to enable the wireless communication device to attach to the core network over non-3GPP access.

Abstract: Embodiments here in relate to methods for message handling performed by an Access and Mobility Management function, AMF, and a User Equipment, UE, as well as a corresponding AMF and UE. Particularly, embodiments herein relate to methods for handling service requests performed by an Access and Mobility Management function, AMF, and a User Equipment, UE, as well as a corresponding AMF and UE.

Abstract: A method performed by an Access and mobility Management Function (AMF). The method includes receiving from a Session Management Function (SMF) a request to establish User Plane (UP) for a user equipment's (UE's) protocol data unit (PDU) session. The request includes information indicating an access type. The method also includes, in response to the request, performing the steps of: determining that the UE is in the idle state with respect to both a 3GPP access and a non-3GPP access and, as a result of determining that the UE is in the idle state with respect to both a 3GPP access and a non-3GPP access, the AMF initiates paging of the UE by the 3GPP access, the paging initiation comprising transmitting to a Radio Access Network, RAN, node a page request to page the UE.

Abstract: A method to operate a Network Function, Repository Function, NRF, to manage NF profiles of Session Management Functions (SMFs) in a communication system is provided that is configured to communicate with other network functions of the communications system through a network interface. The NRF receives NF profiles for the SMFs, wherein at least some of the NF profiles each include both a SMF identifier and a service area information for a respective one of the SMFs. After receiving the NF profiles, the NRF stores the SMF identifiers and the service area information of the NF profiles in a repository in memory. The NRF may also receive a NF discovery request for discovering SMFs. After receiving the NF discovery request, the NRF may retrieve from the repository at least one of the NF profiles respectively for at least one SMF based on content of the NF discovery request. The NRF communicates a NF discovery response containing the SMF identifier and the service area information of the at least one SMF.

Abstract: Disclosed herein is a method for implementing conditional packet forwarding control rules, performed by User Plane Function (UPF). The method comprises: receiving, from a Control Plane Function (CPF) a packet forwarding control rule comprising one or more rule enforcement conditions; and applying the packet forwarding control rule according to the rule enforcement condition(s).

Abstract: The invention relates to methods and devices for enabling relocation of Access and Mobility Management Functions (AMFs). In an aspect of the invention a method performed by a Non-3rd Generation Partnership Project (3GPP) Interworking Function (14, N3IWF) enabling a wireless communication device (10) to attach to a core network (100) over non-3GPP access, to facilitate re-location of the wireless communication device (10) from an Access and Mobility Management Function (13, AMF) currently serving the wireless communication device (10) over non-3GPP access to the core network (100), to a target AMF (21) which is to serve the wireless communication device (10) over 3GPP access to the core network (100). The method comprises receiving (S119a), from the target AMF (21), a request to redirect any further signalling of the wireless communication device (10) from the currently serving AMF (13) to the target AMF (21); and redirecting any signalling of the wireless communication device (10) to the target AMF (21).

Abstract: Embodiments here in relate to methods for message handling performed by an Access and Mobility Management function, AMF, and a User Equipment, UE, as well as a corresponding AMF and UE. Particularly, embodiments herein relate to methods for handling service requests performed by an Access and Mobility Management function, AMF, and a User Equipment, UE, as well as a corresponding AMF and UE.