Terminal unit for handling session on the basis of session initiation protocol, method of transmitting and receiving thereof
AssigneeKt Corporation
InventorsHyung-Jin Lee, Bo-Wook Cho, Chan-Min Park
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Abstract
According to the present invention, a service is configured by a plurality of sessions and respective session negotiation requests defined by different media formats can be performed without influencing existing connected sessions, and hence it is easy to add, delete, and change the media, the contact of session negotiation can be specified, and the response to the session negotiation request can be processed easily with the service acceptance or rejection of the contact.
Claims9
A method of managing Session Initiation Protocol (SIP)-based sessions in a first device, the first device comprising:
- activating a first communication service of an Internet Protocol Multimedia Subsystem (IMS) application at a first user's first request for the first communication service;
- assigning a session mapping identifier to a first session for the first communication service;
- sending, to a second device of a second user, a first session negotiation request including the assigned session mapping identifier, wherein the first session negotiation request is a first SIP message, wherein the assigned session mapping identifier is inserted into a newly defined field of a header of the first SIP message;
- receiving the first user's second request for a second communication service of the IMS application, the second communication service being different from the first communication service, the second request identifying the second user or device;
- in response to the second request, activating the second communication service;
- assigning the same session mapping identifier to a second session for the second communication service;
- sending to the second device a second session negotiation request including the same session mapping identifier, wherein the second session negotiation request is a second SIP message, wherein the same session mapping identifier is inserted into a newly defined field of a header of the second SIP message;
- and
- establishing the second session with the second device using the same session mapping identifier.
A method of managing Session Initiation Protocol (SIP)-based sessions in a second device, the method comprising:
- running a first session for a first communication service, in a second device in communication with a first device, the first communication service provided by an Internet Protocol Multimedia Subsystem (IMS) application, wherein the first session uses a first session mapping identifier;
- receiving, from the first device, a second session negotiation request for establishing a second session for a second communication service of the IMS application, the second communication service different from the first communication service, and the second session negotiation request including a second session mapping identifier, wherein the second session negotiation request is a SIP message, wherein the second session mapping identifier is inserted by the first device into a newly defined field of a header of the SIP message;
- activating the second communication service in the second device;
- checking to see if the second session mapping identifier is identical to the first session mapping identifier;
- if it is determined that the second session mapping identifier is identical to the first session mapping identifier, assigning the identical session mapping identifier to the second session for the second communication service;
- and
- establishing the second session using the identical session mapping identifier.
Dependencies are inferred from the claim text.