IP multimedia subsystem user identity handling

摘要

A method of handling IP Multimedia Public Identity registration within an IP Multimedia Subsystem network. The method comprises receiving at a Call Session Control Function a SIP REGISTER message including a completed IP Multimedia Public Identity Attribute-Value-Pair and no IP Multimedia Private Identity. The method further comprises deriving at the Call Session Control Function an IP Multimedia Private Identity using the IP Multimedia Public Identity and sending a Cx query from the Call Session Control Function to a Home Subscriber Server, the query including the IP Multimedia Public Identity and the derived IP Multimedia Private Identity. The Home Subscriber Server identifies a subsubscription using the IP Multimedia Public Identity, and determines that the derived IP Multimedia Private Identity is not associated with said subscription. The HSS the identifies a default IP Multimedia Private Identity associated with subscription associated with said subscription, and returns a Cx response to said Call Session Control Function including said default IP Multimedia Private Identity. The Call Session Control Function uses the received, default IP Multimedia Private Identity to further handle said SIP message.

主权项

1. A method of handling IP Multimedia Public Identity registration within an IP Multimedia Subsystem network, the method comprising:
receiving at a Call Session Control Function a SIP REGISTER message including a completed IP Multimedia Public Identity Attribute-Value-Pair and no IP Multimedia Private Identity; deriving at the Call Session Control Function an IP Multimedia Private Identity using the IP Multimedia Public Identity indicated in the completed IP Multimedia Public Identity Attribute-Value-Pair; sending a Cx query from the Call Session Control Function to a Home Subscriber Server, the query including said IP Multimedia Public Identity and the derived IP Multimedia Private Identity; at the Home Subscriber Server, identifying a subscription using the IP Multimedia Public Identity, determining that the derived IP Multimedia Private Identity is not associated with said subscription, identifying a default IP Multimedia Private Identity associated with said subscription, and returning a Cx response to said Call Session Control Function including said default IP Multimedia Private Identity; and at said Call Session Control Function, using the received, default IP Multimedia Private Identity to further handle said SIP REGISTER message.