Abstract: An access and mobility management function, AMF, entity receives an initial registration request from a communication device and transmits, responsive thereto, a network function, NF, discovery request to a network function repository function, NRF, entity, the NF discovery request including a communication device identifier and an NF type identifier. The NRF entity matches the communication device identifier with one of a plurality of communication device identifier ranges configured by the NRF entity, extracts a group identifier, groupId, configured for the one of the plurality of communication device identifier ranges, builds a list of registered NF profiles matching the NF type identifier and registered with the groupId, and transmits the list of registered NF profiles including the groupId and a NRF mapping indication to the AMF entity.

Abstract: The present disclosure provides a method for a first network element in a communication network to perform service subscriptions for a UE. The method includes: in response to receiving a request comprising service subscription information for the UE from a second network element serving the UE and assisting in the service, cross referencing the service subscription information for the UE in the request with stored service subscription information for the UE for consistency; and in response to being not consistent, initiating updating of service subscriptions for the UE in the second network element according to the stored service subscription information for the UE. Corresponding devices, computer readable storage medium, carrier, etc. are also provided.

Abstract: A method performed by a subscriber's data node for differentiating Non-IP Data Delivery, NIDD, traffic in a communication network. The communication network comprises the subscriber's data node, a serving node and an exposure function node. The subscriber's data node receives, from the exposure function node, a NIDD authorization request comprising a first identifier. The first identifier comprises any one out of a service capability server identifier, an application server identifier and an application function identifier. The subscriber's data node generates a non-IP flow description, based on the received first identifier. The non-IP flow description comprises an application identifier and a non-IP flow identifier for the NIDD authorization. The subscriber's data node transmits the non-IP flow description towards the serving node. The subscriber's data node transmits a NIDD authorization response comprising the non-IP flow identifier, towards the exposure function node.