Patent
Network nodes and methods performed therein for handling discovery of entrance points to an ip multimedia subsystem
Guo Liangliang,Foti George +1 more
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TLDR
In this article, the authors present a method performed by a first network node (110) in a communications network, for handling of discovery of entrance points of a UE, UE, (120) to an IP Multimedia Subsystem, IMS, network, during an IMS Protocol Data Unit, PDU, session setup.Abstract:
Embodiments herein relate to a method performed by a first network node (110) in a communications network, for handling of discovery of entrance points of a User Equipment, UE, (120) to an IP Multimedia Subsystem, IMS, network, during an IMS Protocol Data Unit, PDU, session setup. The first network node (110) obtains a list of IMS entrance point instances, wherein the list of IMS entrance point instances comprises an address of each IMS entrance point instance and one or more transport protocols supported by each IMS entrance point instance. The first network node (110) generates, based on the obtained list of IMS entrance point instances, a configuration message for IMS entrance point discovery, comprising the address of the IMS entrance point instance and the one or more transport protocols supported by each IMS entrance point instance. The first network node (110) further provides, to the UE (120), the generated configuration message. The embodiments herein further relate to methods performed by a second network node (111) and bythe UE (120).read more
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