Patent ID: 8396017
Filing Date: 2013-03-12
Classification: H04L,H04W,Y02D

Abstract:
1. An apparatus for filtering a broadcast message, the apparatus comprising: a broadcast message processor for receiving a broadcast message, checking the received broadcast message, and deciding whether to transmit a response message instead of a registered communication terminal to which the broadcast message is forwarded; a keep-alive node checker for checking whether the registered communication terminal exists within a control area; and a controller for receiving a registration message from a communication terminal, performing registration for broadcast message filtering, transmitting the response message to the broadcast message instead of the registered communication terminal when the broadcast message processor permits the response and when the received broadcast message requires a response, and deleting registration information on the registered communication terminal when the keep-alive node checker determines that the registered communication terminal does not exist within the control area in order to prevent the registered communication terminal from further receiving the broadcast message.