Method and system for maintaining connections between a terminal and servers in a communication system
First Claim
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1. A method for maintaining connections between a terminal and a plurality of servers in a stand-by state in which the terminal is connected to the servers, comprising:
- synchronizing timers associated with respective ones of the connections to the plurality of servers by generating, by the terminal, timers for maintaining the connections to the plurality of servers;
determining whether any one of the generated timer expires;
simultaneously sending packets for connection maintenance notifications to all the servers having communication connections to the terminal when the timer expires, anddetermining whether data to be transmitted/received by the terminal exists when the timer does not expire;
determining whether a remaining time until an expiration schedule of the timer is equal to or less than a preset RT time when the data to be transmitted/received exists; and
simultaneously sending the packets for the connection maintenance notifications to all the servers having the communication connections to the terminal when the remaining time until the expiration schedule of the timer is equal to or less than the preset RT time.
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Abstract
A method and system for maintaining connections between a terminal and a plurality of servers in a stand-by state in which the terminal is connected to the servers. The terminal generates timers for maintaining the connections to the servers. The terminal determines whether a timer expires. When the timer expires, the terminal simultaneously sends packets for connection maintenance notifications to all the servers having communication connections to the terminal.
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Citations
17 Claims
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1. A method for maintaining connections between a terminal and a plurality of servers in a stand-by state in which the terminal is connected to the servers, comprising:
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synchronizing timers associated with respective ones of the connections to the plurality of servers by generating, by the terminal, timers for maintaining the connections to the plurality of servers; determining whether any one of the generated timer expires; simultaneously sending packets for connection maintenance notifications to all the servers having communication connections to the terminal when the timer expires, and determining whether data to be transmitted/received by the terminal exists when the timer does not expire; determining whether a remaining time until an expiration schedule of the timer is equal to or less than a preset RT time when the data to be transmitted/received exists; and simultaneously sending the packets for the connection maintenance notifications to all the servers having the communication connections to the terminal when the remaining time until the expiration schedule of the timer is equal to or less than the preset RT time. - View Dependent Claims (2, 3, 4, 16)
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5. A communication system for maintaining connections between a terminal and a plurality of servers in a stand-by state in which the terminal is connected to the servers, comprising:
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the terminal configured to synchronize timers associated with respective ones of the connections to the plurality of servers by generating timers for maintaining the connections to the servers and determine whether any one of the generated timer expires; and at least one server configured to check a connection maintenance state by receiving a packet for a connection maintenance notification from the terminal when the timer expires, wherein it is determined whether data to be transmitted/received by the terminal exists when the timer does not expire, it is determined whether a remaining time until an expiration schedule of the timer is equal to or less than a preset RT time when the data to be transmitted/received exists, and the packets for the connection maintenance notifications to all the servers having the communication connections to the terminal are simultaneously sent when the remaining time until the expiration schedule of the timer is equal to or less than the preset RT time. - View Dependent Claims (6, 7, 8, 17)
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9. A mobile terminal for use in a communication system capable of maintaining connections between the mobile terminal and a plurality of servers in a stand-by state in which the mobile terminal is connected to the servers, comprising:
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a timer generator configured to synchronize timers associated with respective ones of the connections to the plurality of servers by generating timers for maintaining the connections to the servers and determining whether a timer expires; and a transceiver configured to communicate with at least one server, the server configured to check a connection maintenance state by receiving a packet for a connection maintenance notification from the terminal when the timer expires, wherein the packets for the connection maintenance notifications to all the servers having the communication connections to the terminal are simultaneously sent when the remaining time until the expiration schedule of the timer is equal to or less than the preset RT time. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification