Patent ID: 7894381
Filing Date: 2011-02-22
Classification: H04L,H04W

Abstract:
1. A system for reliably broadcasting a data packet under an ad-hoc network environment, the system comprising: a comparing unit which compares a first relay node sequence number with a second relay node sequence number, wherein the first relay node sequence number is contained in a management packet, the management packet is transmitted from a predetermined neighboring node to at least one node which receives the first relay node sequence number, wherein the at least one node transmits the data packet to the predetermined neighboring node, and wherein the second relay node sequence number is stored in a neighbor table of the at least one node; a memory unit which stores information of the data packet before the data packet is transmitted to the predetermined neighboring node, wherein the information of the data packet comprises the second relay node sequence number; and a control unit which determines whether or not the data packet is retransmitted to the predetermined neighboring node by the at least one node according to a result of the comparison, wherein the comparing is performed in the at least one node transmitting the data packet.