Patent ID: 8917685
Filing Date: 2014-12-23
Classification: H04W

Abstract:
1. A wireless communication system that is capable of performing cognitive wireless communication, comprising: a primary user that is able to receive a primary signal which is a wireless signal from a base station; a cluster head equipment (CHE) that provides a local area network (LAN) to a predetermined cluster region including the primary user; and a secondary user that is present within the cluster region, wherein the cluster head equipment (CHE) includes n acquiring unit that acquires one or both of information regarding the primary user and information regarding the primary signal, and a transmitting unit that transmits information to the secondary user, and wherein based on the information received from the transmitting unit of the cluster head equipment (CHE), the secondary user performs the cognitive wireless communication with another secondary user or performs the cognitive wireless communication with the cluster head equipment (CHE) to connect to a communication line via the cluster head equipment (CHE), wherein the acquiring unit of the cluster head equipment (CHE) acquires the information regarding the primary user by specifying whether the primary user is turned off, and wherein the secondary user performs the cognitive wireless communication using a frequency band available by the primary user, when the secondary user receives information indicating that the primary user is turned off from the cluster head equipment (CHE).