Patent ID: 8804613

Claim:
A wireless mesh network system, which includes a plurality of wireless devices and is adapted to forward a message packet, wherein the wireless devices include an original source wireless device, a destination wireless device, and a relay wireless device which relays the message packet between the original source wireless device and the destination wireless device, and each of the wireless devices comprises: a transmitting unit, a receiving unit, a communications controller, and a RAM, and wherein, if the message packet received by the relay wireless device is an acknowledgement signal, the communications controller of the relay wireless device causes an original source address, a destination address, and a packet number contained in the acknowledgement signal to be stored in the RAM of the relay wireless device, wherein, if the message packet received by the relay wireless device is a data signal and if information contained in the message packet received is consistent with the original source address, the destination address, and the packet number contained in the acknowledgement signal stored in the RAM of the relay wireless device, the communications controller of the relay wireless device causes the acknowledgement signal stored in the RAM of the relay wireless device to be forwarded to the original source wireless device by the relay wireless device on behalf of the destination wireless device, and wherein the relay wireless device forwards the acknowledgement signal stored in the RAM of the relay wireless device to the original source wireless device on behalf of the destination wireless device when an acknowledgement signal sequentially transmitted from the destination wireless device cannot be forwarded by the relay wireless device to the original source wireless device because the acknowledgement signal sequentially transmitted from the destination wireless device would collide with a packet transmitted from the original source wireless device on a communications path between the original source wireless device and the relay wireless device.