The method of making the discovery which is based on the SIP event of service and the contents of the community which is formed concerning context information possible, the system and the computer program

摘要

This invention offers with the event notification system and the event notification system which possesses the server and sabusukuraiba unit the method of operating. This method from sabusukuraiba unit transmits subscription request message in the discovery server, responding to the reception of thing and the subscription request message to which subscription request message includes discovery kueri, sentence structure analyzes discovery kueri, includes with the fact that subscription request is accepted when it is support possible discovery kueri due to the discovery server. This method furthermore includes with the fact that context kueri is formed sentence structure on the basis of discovery kueri which was analyzed and the fact that context kueri is transmitted in the context kueri server. The context kueri server sentence structure analyzes context kueri, replies with the response identifier of the group of event servers who form the community of the event server who judges the result of discovery kueri together. The discovery server the sub scribe does in each utilization of the event server who forms the community of the event server notifies the available service which discovery is done to sabusukuraiba unit. Selective figure Figure 2