Patent ID: 8191153
Filing Date: 2012-05-29
Classification: H04L,H04W

Abstract:
1. A communication system comprising a terminal, a first server apparatus managing movement of said terminal; and a second server apparatus performing authentication of said terminal; wherein: said first server apparatus uses an AAA (Authentication, Authorization, Accounting) protocol to transmit a first message including a pseudo-NAI (Network Access Identity) of said terminal to said second server apparatus; and said second server apparatus: records a pseudo-NAI and true-NAI of said terminal in association with each other and records maintenance function execution necessity information indicating whether a maintenance function must be executed for said terminal in association with the true-NAI of said terminal; and upon reception of said first message from said first server apparatus, uses the AAA protocol to transmit to said first server apparatus a second message containing the maintenance function execution necessity information recorded in correspondence with the pseudo-NAI contained in said first message, wherein said first server apparatus is a home agent (HA) server, and said second server apparatus is an AAA server, and wherein said maintenance function execution necessity information concerns said maintenance function.