Device and method for establishing security association in communication system
AssigneeSamsung Electronics Co., Ltd.
InventorShijae LEE
Life of this patent
Estimating the term…
Abstract
The present invention relates to a management of a Security Association (SA) between an Internet protocol Multimedia Subsystem (IMS) and a terminal in a communication system. A method of operating a Proxy-Call Session Control Function (P-CSCF) device includes determining a need to establish an SA due to a loss of SA information of a terminal, and transmitting a message for informing the loss of the SA information. In addition, the present invention also includes other exemplary embodiments different from the aforementioned exemplary embodiments.
Claims14
An apparatus for operating a proxy-call session control function (P-CSCF) server of an internet protocol multimedia subsystem (IMS) in a communication system, the apparatus comprising:
- at least one processor configured to determine an establishment of a security association (SA) based on a loss of SA information of a terminal;
- and
- at least one transceiver configured to transmit a message indicating the loss of the SA information.
An apparatus for operating a serving-call session control function (S-CSCF) server of an internal protocol multimedia subsystem (IMS) in a communication system, the apparatus comprising:
- at least one processor configured to determine a loss of security association (SA) information of a terminal;
- and
- at least one transceiver configured to transmit a message indicating a need to establish an SA for the terminal.
-12. (canceled)
An apparatus for operating a terminal in a communication system, the apparatus comprising:
- at least one transceiver configured to receive a message indicating a loss of security association (SA) information of a terminal;
- and
- at least one processor configured to perform a procedure for establishing the SA.
(canceled)
Dependencies are inferred from the claim text.