Patent ID: 8385336
Filing Date: 2013-02-26
Classification: H04B,H04L

Abstract:
1. A communication apparatus for transmitting a route request packet for creating a route to relay apparatuses such that the route request packet arrives at a destination apparatus, when a source apparatus requests communication by a multi-hop technique with the destination apparatus which is a destination, the communication apparatus comprising: a reception section for receiving from at least one immediately preceding relay apparatus among the relay apparatuses, which has directly transmitted the route request packet to the communication apparatus, the route request packet, the route request packet including information indicating 1) the source apparatus, 2) the destination apparatus, and 3) a route evaluation value indicating a route state of a route from the source apparatus to the immediately preceding relay apparatus; an updating section for calculating a route evaluation value corresponding to a route from the source apparatus to the communication apparatus, the route evaluation value being based on 1) the route state of the route from the source apparatus to the immediately preceding relay apparatus, the route state of the route being written in the received route request packet, and 2) a route state of a route from the immediately preceding relay apparatus to the communication apparatus, and the updating section also updates the route evaluation value in the route request packet; and a control section for: