Patent ID: 8799749

Claim:
An ad-hoc multimedia group communication terminal which is robust to packet loss, the ad-hoc multimedia group communication terminal comprising a multimedia transmitter, wherein the media transmitter comprises: a reception status monitoring module for, when one or more media data packets are transmitted to one or more reception side terminals, recognizing packet reception status information relevant to the reception side terminals for each communication group based on one or more control packets received from each of the reception side terminals; an error recovery level/traffic adjustment module for, when it is determined that a large amount of packet loss occurred using the reception status monitoring module, adjusting an error recovery level and an amount of traffic of each of the media data packets transmitted to each of the reception side terminals based on the packet reception status information; a bit stream division and error recovery data generation module for generating error recovery data to be transmitted to each of the reception side terminals based on the error recovery level; and a media data packet generation module for generating the media data packets and error recovery data packets, wherein the error recovery level/traffic adjustment module elevates the error recovery level of each of the media data packets in an order of a higher priority.