Abstract: Embodiments of the present disclosure provide method and apparatus for access or RAT restriction. A method at a first access management entity of a network comprises determining that a user equipment (UE) is using LTE-M radio access technology (RAT). The method further comprises obtaining access restriction or RAT restriction data associated with the UE, wherein the access restriction or RAT restriction data indicates that LTE-M RAT type is restricted. The method further comprises determining whether the UE using LTE-M is allowed to attach or register to the network based on the obtained access restriction or RAT restriction data associated with the UE.

Abstract: Systems and methods related to a bootstrapping service for a network function (NF) in a core network of a cellular communications system are disclosed. In one embodiment, a method performed by a first NF in a core network of a cellular communications system comprises receiving, from a second NF, a request for services exposed by the first NF. The method further comprises, responsive to receiving the request, sending, to the second NF, information about one or more services exposed by the first NF. In one embodiment, the information about one or more services exposed by the first NF includes Application Programming Interface (API) versions of the one or more services. In this manner, flexibility is provided in the network since there is no need for static configuration of service parameters.

Abstract: Embodiments described herein relate to methods and apparatuses for registering one or more services that a producer network function is capable of providing at a network repository function and allowing for the access of those services by consumer network functions. A method in a producer network function comprises transmitting a registration request to the NRF, wherein the registration request comprises registration information comprising: an indication of the one or more services; and an indication of resources and operations associated with each resource of the one or more services that are allowed per network function consumer type.

Abstract: A method performed by a first node implementing a first NF in a visited network (VPLMN) for communicating with a third node implementing a second NF in a home network (HPLMN) is provided. Embodiments include: determining that the third node should be communicated with; sending, towards a second node implementing a Security Edge Protection Proxy (SEPP) in the visited network, a request for a telescopic FQDN for the third node in the home network to be used by the first node in the visited network to communicate with the third node in the home network, which request comprises a FQDN of the third node in the home network; receiving, from the second node, a telescopic FQDN for the third node wherein the FQDN for the third node in the home network is flattened to a single label to be used by the first node to communicate with the third node.

Abstract: In one aspect, an NRF is configured to inform an NF instance that has sent a discover request toward the NRF that the number of NF instances that match the search criteria used by the NRF in response to the discover request is greater than the number of NF instance profiles included in the NF instances array of the discover response.

Abstract: Systems and methods that are particularly well-suited for service-based core network endpoint authentication are disclosed. In some embodiments, a method of operation of a network node implementing a second network function in a core network of a cellular communications system comprises receiving, at a main service of the second network function, a request from a first network function for a desired service via Hypertext Transfer Protocol/Representational State Transfer (HTTP/REST) signaling. The request comprises information that identifies one or more delegate endpoints of the first network function that expose one or more delegate services, respectively, of the first network function for providing the desired service using one or more different communication styles. The method further comprises initiating the desired service using a selected delegate endpoint from the one or more delegate endpoints identified by the information comprised in the request.

Abstract: Systems and methods are described for redirecting a user equipment with a routing misconfiguration. An exemplary method includes detecting a potential misconfiguration associated with the user equipment or a subscriber identity module (SIM) associated with the user equipment and generating an error code indicating the potential misconfiguration associated with the user equipment of the SIM associated with the user equipment. The error code is transmitted to an authentication module and indicates that the misconfiguration is an incorrect routing identifier and includes additional user information.

Abstract: The present specification faces the issues of selecting a right 5G Network Function, NF, instance in scenarios wherein NF instances are considered NF segments that manage different sets of users and wherein NF segmentation is not based on SUPI ranges. To solve these issues, there is provided a new procedure for accessing an NF segment, wherein registration and discovery of the right NF segment is based on a Routing Indicator, and wherein the Routing Indicator, which is received with a Subscription Concealed Identifier (SUCI) identifying a UE, is included in any interaction between 5GC NFs.

Abstract: Methods and nodes related to subscription handling and notifications, for instance, with respect to Network Function (NF) management services, are described.

Abstract: Disclosed herein is a method, performed by a repository network entity within a telecommunications network, for providing notifications for a subscription to monitor changes of a NF profile of a monitored network entity. The method comprises: receiving, from a subscribing network entity, a subscription request to subscribe to monitor changes to a NF profile of at least one monitored network entity, the request comprising a notification preference that identifies a subset of attributes in the NF profile to be monitored or to be excluded from monitoring; and providing to the subscribing network entity, notifications of changes to the identified subset of attributes of the NF profile of the at least one monitored network entity.

Abstract: The invention relates to a method for operating a tracking entity (100, 400) configured to track to which access and connectivity management entity (200) a mobile device (50) is connected in a mobile communications network, wherein an application server (60) is initiating a monitoring of an event occurring at the mobile device, the method comprising: —receiving a request to monitor the event at the mobile device (50), the request comprising an indication for an audit for the monitoring of the event by which a validity of the monitoring of the event should be checked when the event has not been detected for an indicated period of time, —transmitting the received request for the event with the indication for the audit and the indicated period of time to the access and connectivity management entity (200) to which the mobile device is connected, —receiving a notification from the access and connectivity management entity (200) that the event has not been detected for the indicated period of time, —determining, i

Abstract: Systems and methods for updating subscriber data are disclosed. In some embodiments, a method of operation of a serving node in a communication network for updating subscriber data includes receiving a modification of subscriber data for one or more subscribers and determining if updates to the subscriber data for the one or more subscribers are needed now. In response to determining that updates are needed now, the method includes communicating the modification for subscribers to one or more additional nodes and/or initiating other types of signaling towards other network nodes as a result. In response to determining that updates are not needed now, the method includes postponing the communication of the modification of the subscriber data for the one or more subscribers. In this way, signaling floods towards external network elements may be avoided when a modification is performed to subscription data that affects multiple subscribers (potentially even millions).

Abstract: Systems and methods that are particularly well-suited for service-based core network endpoint authentication are disclosed. In some embodiments, a method of operation of a network node implementing a second network function in a core network of a cellular communications system comprises receiving, at a main service of the second network function, a request from a first network function for a desired service via Hypertext Transfer Protocol/Representational State Transfer (HTTP/REST) signaling. The request comprises information that identifies one or more delegate endpoints of the first network function that expose one or more delegate services, respectively, of the first network function for providing the desired service using one or more different communication styles. The method further comprises initiating the desired service using a selected delegate endpoint from the one or more delegate endpoints identified by the information comprised in the request.

Abstract: Network equipment (300, 400) is configured for use in one of multiple different core network domains of a wireless communication system (10). The network equipment (300, 400) is configured to receive a message (60) that has been, or is to be, transmitted between the different core network domains The network equipment (300, 400) is also configured to apply inter-domain security protection to, or remove inter-domain security protection from, one or more portions of the content of a field in the message according to a protection policy (80). The protection policy (80) includes information indicating to which one or more portions of the content inter-domain security protection is to be applied or removed. The network equipment (300, 400) is also configured to forward the message (60), with inter-domain security protection applied or removed to the one or more portions, towards a destination of the message (60).

Abstract: Systems and methods for updating subscriber data are disclosed. In some embodiments, a method of operation of a serving node in a communication network for updating subscriber data includes receiving a modification of subscriber data for one or more subscribers and determining if updates to the subscriber data for the one or more subscribers are needed now. In response to determining that updates are needed now, the method includes communicating the modification for subscribers to one or more additional nodes and/or initiating other types of signaling towards other network nodes as a result. In response to determining that updates are not needed now, the method includes postponing the communication of the modification of the subscriber data for the one or more subscribers. In this way, signaling floods towards external network elements may be avoided when a modification is performed to subscription data that affects multiple subscribers (potentially even millions).

Abstract: Methods, devices, computer programs and carriers comprising computer programs for handling handling a User Equipments, UE, access to networks are provided. A method performed by a mobility node 105 comprises, when the UE 101 accesses the current visited network 100v, transmitting 302, 401, through the visited network to a subscriber server 108 in a home network 100h of the UE 101, a request for access information for the UE 101. The request comprises network information which indicates the current visited network 100v and at least one potential visited network which the UE 101 can access. The method further comprises receiving 304, 403, from the subscriber server 108, the requested access information for at least some of the networks indicated in the request. The access information comprises allowed network IDs and corresponding allowed RATs for at least some of the networks indicated in the request which the UE 101 is allowed to access.

Abstract: In one aspect there is provided a method performed by a first location management entity, LME (e.g., an MME or an SGSN), for providing location information to a location server (e.g., a GMLC). The method includes the first LME receiving from the location server a first request for location information pertaining to a terminal. The method also includes the first LME determining whether the terminal is in a connected state. The method further includes the first LME, in response to determining that the terminal is in a connected state, performing a method comprising: i) transmitting a stop paging message to a second LME; ii) obtaining the requested location information pertaining to the terminal; and iii) transmitting the obtained location information to the location server.

Abstract: Methods, devices, computer programs and carriers comprising computer programs for handling handling a User Equipments, UE, access to networks are provided. A method performed by a mobility node 105 comprises, when the UE 101 accesses the current visited network 100v, transmitting 302, 401, through the visited network to a subscriber server 108 in a home network 100h of the UE 101, a request for access information for the UE 101. The request comprises network information which indicates the current visited network 100v and at least one potential visited network which the UE 101 can access. The method further comprises receiving 304, 403, from the subscriber server 108, the requested access information for at least some of the networks indicated in the request. The access information comprises allowed network IDs and corresponding allowed RATs for at least some of the networks indicated in the request which the UE 101 is allowed to access.

Abstract: In one aspect there is provided a method performed by a first location management entity, LME (e.g., an MME or an SGSN), for providing location information to a location server (e.g., a GMLC). The method includes the first LME receiving from the location server a first request for location information pertaining to a terminal. The method also includes the first LME determining whether the terminal is in a connected state. The method further includes the first LME, in response to determining that the terminal is in a connected state, performing a method comprising: i) transmitting a stop paging message to a second LME; ii) obtaining the requested location information pertaining to the terminal; and iii) transmitting the obtained location information to the location server.

Abstract: In one aspect there is provided a method performed by a first location management entity, LME (e.g., an MME or an SGSN), for providing location information to a location server (e.g., a GMLC). The method includes the first LME receiving from the location server a first request for location information pertaining to a terminal. The method also includes the first LME determining whether the terminal is in a connected state. The method further includes the first LME, in response to determining that the terminal is in a connected state, performing a method comprising: i) transmitting a stop paging message to a second LME; ii) obtaining the requested location information pertaining to the terminal; and iii) transmitting the obtained location information to the location server.