US 2011/0035483 A1Published application

Ims system, as apparatus and mgw apparatus, and method of notifying congestion restriction in ims system

AssigneeNEC Corporation

InventorHiroshi Taguchi

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Abstract

The present invention provides a function of enabling common carriers to easily perform the customization of restriction information and restriction guidance, in which an AS apparatus, upon receipt of a connection start request from a terminal through an MGW apparatus, confirms whether or not a restriction state is in effect, and when no restriction is in effect, performs connection to the terminal, and when restriction is in-effect, acquires a restriction class Key to transmit a signal, to which the aforementioned acquired restriction class Key has been added, to the MGW apparatus; and the MGW apparatus, upon receipt of the signal, acquires a restriction class Key to edit and transmit to the aforementioned terminal, a restriction guidance signal which indicates the restriction content by using the data associated with the restriction class Key.

Claims5

Dependent claims

An IMS system including an MGW apparatus for performing call control processing and an AS apparatus for performing service control processing:

wherein
said AS apparatus comprises an AS apparatus storage section for retaining a current restriction state, and a common-carrier-specific restriction information management table in which restriction content established independently by a common carrier and a restriction class Key are stored in association with each other, and
said AS apparatus, upon receipt of a connection start request from a terminal via said MGW apparatus, refers to said AS apparatus storage section to confirm whether or not a restriction state is in effect, and when no restriction is in effect, performs connection with said terminal, and when a restriction is in effect, acquires an associated restriction class Key from said common-carrier-specific restriction information management table to transmit a signal, to which the aforementioned acquired restriction class Key has been added, to said MGW apparatus;
and wherein
said MGW apparatus comprises a restriction information-class/guidance-class association table in which a restriction class Key and a restriction guidance class Key are stored in association with each other, and an MGW apparatus storage section for storing data representing a variety of restriction contents in association with said restriction class Key, and
said MGW apparatus, upon receipt of a connection start request from said terminal, transmits the request to said AS apparatus, and thereafter upon receipt of said signal from said AS apparatus, acquires said restriction class Key to edit and transmit to said terminal, a restriction guidance signal indicating a restriction content by using data stored in said MGW apparatus storage section in association with the acquired restriction class Key, to said terminal.

3 more elements

Dependencies are inferred from the claim text.