Patent ID: 6157622
Filing Date: 2000-12-05
Classification: H04W

Abstract:
A communication terminal for communication with a plurality of other terminals, the communication terminal belonging to a plurality of groups of terminals, the terminal comprising:a terminal memory for storing terminal identifiers for other terminals in the plurality of the groups, the terminal identifiers being arranged according to each group;terminal information generation means for generating a multicast address from the terminal identifiers of other terminals in one of the plurality of the groups:sending means for sending a communication information including the multicast address as a destination address;receiving means for receiving communication information from another terminal in one group of the plurality of groups; andgroup discrimination means for converting the multicast address in received information to terminal identifiers, for comparing the converted terminal identifiers with the terminal identifiers of each group stored in said terminal memory, and for discriminating the one group from which the received information is communicated according to the comparison result.