Patent ID: 8588692
Filing Date: 2013-11-19
Classification: H04L,H04W

Abstract:
1. A communication terminal for enabling to use the capabilities of the own terminal containing the functions of a peripheral equipment device group communicable in wireless with the communication terminal in the vicinity of the communication terminal for a communication service as capability information, the communication terminal comprising: a short-distance wireless transmission/reception section which monitors a radio wave state of a short distance wireless facility and detects change in the composition of the peripheral equipment device group; a storing unit which stores capability information or capability information change of an associated terminal that is a communications counterparty of said communication terminal, that is connected through a network to said communication terminal, and that is currently engaged in a previously-initiated communication session with said communication terminal, wherein the communication terminal and the associated terminal exchange respective capability information when the communication session starts; a detecting unit which detects change in the capability information of the own terminal when the short-distance wireless transmission/reception section has detected the change in the composition of the peripheral equipment device group, which is in a Personal Area Network with the own terminal; a notifying unit which notifies the associated terminal of the change in the capability information of the own terminal as capability information change when the detecting unit has detected the change in the capability information of the own terminal during the previously-initiated communication session with said associated terminal; a receiving unit which receives capability information change from the associated terminal, during the previously-initiated communication session with said associated terminal; a determining unit which determines an available communication service with the associated terminal, based on a comparison of the capability information of the own terminal including information about the peripheral equipment device group in the Personal Area Network with the own terminal and the capability information change of the associated terminal including information about a peripheral equipment device group communicable in wireless with the associated terminal in a Personal Area Network with the associated terminal, and at a timing in accordance with the reception of the capability information change of the associated terminal, such that the reception of the capability information change of the associated terminal results in a determination of the available communication service with the associated terminal by the determining unit during the previously-initiated communication session with said associated terminal, wherein the Personal Area Network with the own terminal and the Personal Area Network with the associated terminal are different personal area networks, and wherein the capability information change of the associated terminal concerns a change in the Personal Area Network with the associated terminal due to a presence of a new peripheral equipment device communicable in wireless with the associated terminal in the Personal Area Network with the associated terminal, and wherein the available communication service is a newly available service due to the presence of both of the new peripheral equipment device in the Personal Area Network with the associated terminal and a corresponding peripheral equipment device communicable in wireless with the own terminal in the Personal Area Network with the own terminal, and the newly available service uses both of the new peripheral equipment and said corresponding peripheral equipment device; and a providing unit configured to provide a user with the available communication service with the associated terminal, wherein Session Initiation Protocol is used for performing session control between the own terminal and the associated terminal.