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AssigneeSamsung Electronics Co., Ltd.
InventorsSang-Kyung Sung, Jea-Hun Han, Joon-Goo Park
Estimating the term…
A method and system for guaranteeing a seamless session when replacing a PoC terminal in a PoC system is provided, in which a currently busy PoC client can be replaced in an existing busy PoC session using a PoC compliant client capable of connecting the PoC session, thereby preventing a transmitted media stream of the running PoC session from being lost when the PoC client is replaced. The method includes transmitting, by an arbitrary PoC user, a message for replacing a terminal from a user terminal to a session management server while maintaining the session; receiving, by the session management server, the replacement request message, and transmitting an INVITE message to a terminal to be replaced, or a target terminal; and receiving, by the target terminal, the INVITE message, and media through an existing session. In a situation where there is a need to replace the PoC terminal according to change of the media for the PoC call, request of mobility, etc. by the PoC user, the user is allowed to make a continuous call. Thus, it is possible to improve QoE of the user and expand the markets for the PoC terminal and its services.
A method for guaranteeing a seamless session when replacing a push-to-talk-over-cellular (PoC) terminal in a PoC system, the method comprising the steps of:
A method for guaranteeing a seamless session when replacing a push-to-talk-over-cellular (PoC) terminal in a PoC system, the method comprising the steps of:
A push-to-talk-over-cellular (PoC) system for guaranteeing a seamless session when replacing a push-to-talk-over-cellular (PoC) terminal, the PoC system comprising:
A push-to-talk-over-cellular (PoC) system for guaranteeing a seamless session when replacing a PoC terminal, the PoC system comprising:
A push-to-talk-over-cellular (PoC) terminal for maintaining a seamless session when the PoC terminal is replaced in a PoC system, comprising means for transmitting to a session management server a terminal replacement request message including a session identity and information on a PoC terminal to be replaced, and means for receiving a session termination message to terminate the session when a process of replacing the terminal is terminated by the session management server.
A push-to-talk-over-cellular (PoC) terminal for maintaining a seamless session when the PoC terminal is replaced in a PoC system, comprising means for directly transmitting a terminal replacement request message, that includes a session identity and information on a PoC terminal to be replaced, to a replacement target PoC terminal through a SIP/IP core network, and means for receiving a session termination message from a session management server to terminate the session.
A push-to-talk-over-cellular (PoC) terminal for maintaining a seamless session when the PoC terminal is replaced in a PoC system, comprising means for receiving a terminal replacement request message from a replacement requesting PoC terminal, means for transmitting an INVITE message to a session management server according to information on an existing session received from the replacement requesting PoC terminal, and means for receiving media from the session management server.
Dependencies are inferred from the claim text.