Route information relay method and wireless terminal

摘要

Each node connected to an ad hoc network receives route information from an adjacent node. Each node obtains quality information indicating quality of a route indicated by the route information with respect to the received route information. Each node determines whether a plurality of route information items whose packet destination nodes are the same are received at a predetermined frequency. When it is determined that a plurality of route information items whose packet destination nodes are the same are received, each node compares quality information items of the plurality of received route information items, and selects a route information item corresponding to a quality information item indicating a highest quality as a comparison result. Each node relays the selected route information item to an adjacent node.

主权项

1. A route information relay method for relaying route information executed by a wireless terminal, the route information relay method comprising:
receiving, by the wireless terminal, route information indicating a route through which a packet is transmitted to a destination wireless terminal, and included in a packet received from first another wireless terminal connected to the wireless terminal, and storing the received route information in a route information table; obtaining quality information indicating quality of the route indicated by the received route information; determining, at a predetermined frequency, whether a plurality of pieces of route information which packet destination wireless terminals are same are received based on the route information table; comparing a plurality of pieces of quality information of the plurality of pieces of route information which packet destination wireless terminals are the same; selecting route information corresponding to quality information indicating a highest quality among the plurality of pieces of route information which packet destination wireless terminals are the same; and generating a packet including the selected route information and relaying the generated packet, by the wireless terminal, to second another wireless terminal connected to the wireless terminal, wherein
the selecting includes selecting plurality of route information for a plurality of the destination wireless terminals, respectively, andthe relaying includes combining the selected plurality of route information to relay the combined route information, wherein the determining, the comparing, the selecting and the generating are performed at the predetermined frequency set for the wireless terminal irrespective of whether the wireless terminal receives a new packet.