Terminal device, application server, network exposure function node and methods therein
The present disclosure provides a method ( 100 ) in a terminal device. The method ( 100 ) includes: transmitting ( 110 ) to a Network Exposure Function, NEF, node a Quality of Service, QoS, request including an Internet Protocol, IP, address of the terminal device and information enabling the NEF node to determine an identifier of the terminal device.
1. A method in a Network Exposure Function, NEF, node, comprising:
receiving from a terminal device a Quality of Service, QOS, request including an Internet Protocol, IP, address of the terminal device and information enabling the NEF node to determine an identifier of the terminal device;
determining the identifier based on the information; and
transmitting to a Policy Control Function, PCF, node a request to initiate a QoS modification, the request including the IP address and the identifier.
2. The method of claim 1 , further comprising:
receiving from the terminal device an authentication request including data from which the identifier is derivable;
deriving the identifier from the data;
generating the information in association with the identifier; and
transmitting to the terminal device an authentication response including the information.
3. The method of claim 2 , wherein the identifier is derived from the data based on Generic Bootstrapping Architecture, GBA, or Extensible Authentication Protocol and Key Agreement, EAP-AKA.
4. The method of claim 1 , wherein the identifier is an International Mobile Station Identity, IMSI.
5. The method of claim 1 , wherein the information is a security token.
6. A Network Exposure Function, NEF, node, comprising a communication interface, a processor and a memory, the memory comprising instructions executable by the processor whereby the NEF node is operative to perform the method according to claim 1 .
7. A non-transitory computer readable storage medium having computer program instructions stored thereon, the computer program instructions, when executed by a processor in a Network Exposure Function, NEF, node, causing the NEF node to perform the method according to claim 1 .
8. A method in a Network Exposure Function, NEF, node, comprising:
receiving from an application server a Quality of Service, QoS, request associated with a terminal device, the QoS request including an Internet Protocol, IP, address of the terminal device and an identifier of the terminal device; and
transmitting to a Policy Control Function, PCF, node a request to initiate a QoS modification, the request including the IP address and the identifier.
9. The method of claim 8 , further comprising:
receiving authentication information from the application server; and
authenticating the application server based on the authentication information.
10. The method of claim 8 , wherein the identifier is a Mobile Station Integrated Services Digital Network Number, MSISDN.