Method and apparatus for subscribing to initial filtering condition

Abstract

The invention provides a method and device for subscribing initial filtering conditions, belonging to communication field, comprising: in HSS maintaining and recording a corresponding relationship between session initialization protocol (SIP) URL type address of IFC- triggered AS and Diameter type address of AS initiating IFC user data updating and subscribing request; as AS sends out user data updating and subscribing request, after determining the AS has subscribing right, inquiring whether Diameter type address and SIP URL type address carried in information have corresponding relationship in the HSS: if yes, the AS initiating subscribing request has the subscribing right to the IFC the STP URL address points to. And the invention implements that AS makes multiple-to-multiple inquiry on the IFCs meeting the corresponding conditions by maintaining and inquiring address corresponding relation, overcoming the problem that AS subscribes IFC without limit or can not subscribe IFCs of the other ones.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a method and device for initial filter condition subscription. Background technique [0002] In the IP-based multimedia subsystem (IMS, IP Multimedia Subsystem) network, all user subscription data are stored in the home subscriber server (HSS, Home Subscriber Server), and an important content in the subscription data is the initial filter condition ( IFC, Initial Filter Criteria). The trigger conditions of various services are defined in the IFC. When a user's service request meets a certain trigger condition, the corresponding service will be triggered. [0003] When the system is running, the trigger condition of IFC is sent by HSS to Serving-Call Session Control Funcrion (S-CSCF, Serving-Call Session Control Funcrion). The service request determines an application server (AS, Application Server) suitable for executing the service request, and forwards t...

AI Technical Summary

Problems solved by technology

[0011] Although the above method has pointed out that the SIP address pointed to by the Server-Name AVP in the IFC subscription must have a corresponding relationship with the AS that sends the SNR packet, but since the SNR packet sent by the AS is in Diameter format, the address with it is an address in Diameter format , is a different address from the SIP URL address, so it cannot be directly corresponded to, but there is no more detailed description in the protocol, resulting in the HSS product not knowing how to follow this correspondence when it is implemented. In this case, generally There is no control, so that as long as the AS has the permission to subscribe to the IFC data type, it can subscribe to all IFC data and get all the IFC it wants.

First of all, it does not fully comply with the agreement, and brings security risks to users and AS operators

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