Patent ID: 7532593

Claim:
A wireless LAN system comprising: a plurality of base stations; a LAN terminal configured to be wirelessly connected to the base stations; an IP terminal configured to be connected to an IP network; and a diversity device connected to the IP network and configured to relay packet transmissions between the LAN terminal and the IP terminal via the IP network, wherein the LAN terminal includes a first uplink packet processor configured to sequentially establish associations with a predetermined number of the base stations, and to transmit a plurality of uplink packets, which are identical to each other, to the diversity device in parallel via the base stations with which the associations have been established, such that each base station relays one of the uplink packets, the diversity device includes a second uplink packet processor configured to receive the uplink packets, select one of received uplink packets, and transmit the selected uplink packet to the IP terminal; and a first downlink packet processor configured to receive a downlink packet from the IP terminal, create a plurality of downlink packets, which are identical to each other, from the received downlink packet, and transmit the created downlink packets to the LAN terminal in parallel via the base stations with which the associations have been established, and the LAN terminal further includes a second downlink packet processor configured to receive the downlink packets from the diversity device via the base stations, select and output one of the received downlink packets.