Patent ID: 7042865

Claim:
A method of selective data transmission comprising: transmitting a plurality of data packets wherein at least a portion of the data packets have at least one predetermined identifier; selecting the data packets having the predetermined identifier, wherein the selecting comprises comparing the data packets with a membership table for selecting each predetermined identifier respectively associated with each of the at least one recipients, and discarding data packets not having a predetermined identifier included in the membership table, so as to give priority to identified data packets; the membership table selects identified data packets that are multicast destination packets each having a multicast destination address under at least one of IEEE 802 and Class D IP protocols; forwarding the selected data packets to at least one recipient; and transferring membership table information from a first wireless access point to a second wireless access point when the at least one recipient roams between respective access points, the step of transferring comprises issuing a general query from the at least one recipient to the second wireless access point, for soliciting membership report messages from the second wireless access point; wherein the membership table is maintained on a wireless access point for forwarding the identified data packets to the at least one recipient.