Service usage terminal, service providing terminal, control method of service providing terminal, control method of service providing terminal and service providing system

A method of controlling a service usage terminal, comprising:

• receiving communication data on a transport layer from a service providing terminal which provides service in a higher layer than a transport layer;
• performing a stopping process of a session layer protocol relating to the service, when the received communication data on the transport layer relates to a stop request of the service;
• receiving a trigger relating to the stop of the service;
• and
• transmitting the communication data on the transport layer including a request to the higher layer relating to the stop request of the service to the service providing terminal, when the trigger is received.

A service providing system comprising:

• a service usage terminal which uses service in a higher layer than a transport layer;
• and
• a service providing terminal which provides the service,
• wherein the service usage terminal includes:
• a usage terminal receiving section which receives communication data on the transport layer from the service providing terminal;
• a control section which performs a stopping process of a session layer protocol relating to the service, when the received communication data of the transport layer relates to the stop request of the service;
• a trigger receiving section which receives a trigger relating to the stop of the service;
• and
• a usage terminal transmitting section which transmits the communication data on the transport layer including the request to the higher layer relating to the stop request of the service, to the service providing terminal, when the trigger is received, and
• wherein the service providing terminal includes;
• a providing terminal receiving section which receives the communication data on the transport layer from the service usage terminal;
• and
• a providing terminal transmitting section which transmits the communication data on the transport layer relating to the stop request of the service to the service usage terminal, when the received communication data on the transport layer includes the request to the higher layer relating to the stop request of the service.