Patent ID: 8095643
Filing Date: 2012-01-10
Classification: G06F,G06Q,G07F,H04B,H04J,H04L,H04W,Y10S

Abstract:
1. A communication apparatus which gives notice of existence to another device on a network, comprising: a transmission unit which transmits a communication apparatus notice signal to notify the other device of the existence of said communication apparatus and of a communication apparatus expiration period of information on service provided by said communication apparatus whenever the communication apparatus expiration period has elapsed; a receiving unit which receives a device notice signal to notify the communication apparatus of the existence of a first other device and of a device expiration period of information on service provided by the first other device; a management unit which manages the first other-device expiration period of information on service provided by the first other device on the basis of a previously received first other-device notice signal transmitted from the first other device, and manages the communication apparatus expiration period of information on service provided by said communication apparatus; and a decision unit which decides whether or not a second other-device notice signal has been transmitted from the first other device before a time prior to the first other-device expiration period managed by said management unit by a predetermined time, wherein if the second other-device notice signal has been transmitted from the first other device at a time prior to the first other-device expiration period managed by said management unit by the predetermined time, said transmission unit transmits the communication apparatus notice signal by increasing a transmission power, independently of whether or not the communication apparatus expiration period managed by said management unit has expired.