Patent ID: 8355697
Filing Date: 2013-01-15
Classification: H04H,H04L,H04N,H04W

Abstract:
1. A mobile communication system providing a broadcast service, comprising: a portable terminal capable of a user authentication process if a message indicating that a broadcast requires the authentication process is received while using the broadcast service, the portable terminal provides the broadcast service if the authentication process is successful, and stops the broadcast service if the authentication process fails; and a multimedia broadcast server for transmitting to the portable terminal the message, which indicates that the broadcasting requires the authentication process, when a modified broadcast requires the authentication process while the broadcast service is being provided to the portable terminal, wherein the modified broadcast occurs when multimedia broadcasting currently being provided to the portable terminal is ended, and new broadcasting is provided, wherein the portable terminal comprises: wherein the personal authentication information required for the authentication process is modified under the control of the controller, when the message indicates that the personal authentication information is to be modified.