Patent ID: 7330694
Filing Date: 2008-02-12
Classification: H04W

Abstract:
1. A method for setting up a route path between a source node and a destination node through route discovery in a mobile ad hoc network, comprising the steps of: (a) transmitting by the source node a route request message (RREQ) to the destination node; (b) receiving by the destination node the RREQ and transmitting an original route reply message (RREP) to the source node in response to the RREQ; (c) storing, by a first intermediate node having failed to transmit the original RREP received from the destination node, the original RREP, generating and storing a partial route request message (PRREQ) according to a predetermined PRREQ format, and transmitting the generated PRREQ to neighbor intermediate nodes; (d) generating, by a second intermediate node receiving the PRREQ, a partial route reply message (PRREP) corresponding to the PRREQ and transmitting the PRREP to the first intermediate node that transmitted the PRREQ, if an identifier (ID) of PRREQ and an original Internet protocol (IP) address included in the received PRREQ are identical to an ID and an original IP address of the RREQ received from the source node; (e) if a partial route path is set up between the first intermediate node and the second intermediate node as the first intermediate node receives the PRREP, transmitting by the first intermediate node the original RREP stored via a path established to the source node, via the partial route path; and (f) receiving by the source node the original RREP, and completing setup of the route path.