Apparatus and method for reliably and dynamically transmitting group information via a wireless multicast or broadcast channel

An information transmission method of a controller (OGI-Controller) for transmitting information to registered terminal through a multicast or broadcast radio channel, comprising:

• a service request step for requesting, at a content provider, registration of a service for information transmission and assigning a session ID;
• a service activation step for starting the requested service;
• a scheduling notification step for transmitting to the terminal a scheduling information for receiving the information at a scheduled time;
• an information transmission step for transmitting the information to the terminal according to the scheduling;
• a terminal check step for receiving a transfer error report from the terminal received the information;
• and
• a information recovery step for performing retransmission of erroneous information in transmitting the information.

An apparatus for registering a terminal for transmitting information through a multicast or broadcast radio channel, comprising:

• a processor which controls registering a service for transmitting the information provided by a content provider to the terminal and assigning an ID to a terminal group to receive the information, registering the terminal group, checking operations status of the terminals belonged to the registered terminal group, assigning classes to the terminals based on operation status of the terminals;
• and reporting terminal status to the content provider;
• and
• a network module which performs communication with the terminals.