Network connection recovery method and system
First Claim
1. A network connection recovery method for recovering a connection when a fault causes disconnection of any of a plurality of terminal devices connected through a communication network, said method comprising the steps of:
- generating and returning an identifier for use in reconnection of said terminal device with said communication network when said terminal device first accesses through said communication network;
instructing said terminal device to transmit said identifier, when a connection between said terminal device and said communication network is broken by a fault, after said terminal device is connected again to said communication terminal; and
authenticating said terminal device using the transmitted identifier to recover a connection with another terminal device which had been connected with said terminal device immediately before said terminal device was disconnected from said communication network.
1 Assignment
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Accused Products
Abstract
When a terminal device accesses through a communication network for the first time, a server device generates an identifier for use in reconnection of the terminal device with the communication network, and returns the identifier to the terminal device. If a connection between the terminal device and communication network is broken by a fault, the server device authenticates the terminal device using the identifier transmitted from the terminal device to recover a connection with another terminal which had been connected immediately before the terminal device was disconnected from the communication network.
30 Citations
16 Claims
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1. A network connection recovery method for recovering a connection when a fault causes disconnection of any of a plurality of terminal devices connected through a communication network, said method comprising the steps of:
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generating and returning an identifier for use in reconnection of said terminal device with said communication network when said terminal device first accesses through said communication network;
instructing said terminal device to transmit said identifier, when a connection between said terminal device and said communication network is broken by a fault, after said terminal device is connected again to said communication terminal; and
authenticating said terminal device using the transmitted identifier to recover a connection with another terminal device which had been connected with said terminal device immediately before said terminal device was disconnected from said communication network. - View Dependent Claims (2, 3)
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4. A network connection recovery system comprising:
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a server device for generating and returning an identifier for use in reconnection of a terminal device with a communication network when said terminal device first accesses through said communication network, and authenticating said terminal device using said identifier transmitted from said terminal device, when a connection between said terminal device and said communication network is broken by a fault, to recover a connection with another terminal device which had been connected immediately before said terminal device was disconnected from said communication network; and
a terminal device connected for communication with another terminal device through said communication network, said terminal device configured to transmit said identifier to said server device, when a connection between said terminal device and said communication network is broken by a fault, after said terminal device is connected again to said communication terminal. - View Dependent Claims (5, 6)
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7. A server device for performing processing for recovering a connection when a fault causes disconnection of any of a plurality of terminal devices connected through a communication network, said server device comprising:
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a processing unit for generating and returning an identifier for use in reconnection of said terminal device with said communication network when said terminal device first accesses through said communication network, and authenticating said terminal device using said identifier transmitted from said terminal device, when a connection between said terminal device and said communication network is broken by a fault, to recover a connection with another terminal device which had been connected immediately before said terminal device was disconnected from said communication network; and
a data accumulating unit for holding said identifier generated for each said terminal device. - View Dependent Claims (8, 9)
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10. A program for causing a computer to execute processing for recovering a connection when a fault causes disconnection of any of a plurality of terminal devices connected through a communication network, said program causing a computer to execute the processing steps of:
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generating and returning an identifier for use in reconnection of said terminal device with said communication network when said terminal device first accesses through said communication network; and
authenticating said terminal device using said identifier transmitted from said terminal device, when a connection between said terminal device and said communication network is broken by a fault, to recover a connection with another terminal device which had been connected immediately before said terminal device was disconnected from said communication network. - View Dependent Claims (11, 12, 14, 15)
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13. A recording medium having recorded thereon a program for causing a computer to execute processing for recovering a connection when a fault causes disconnection of any of a plurality of terminal devices connected through a communication network, said program causing a computer to execute the processing steps of:
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generating and returning an identifier for use in reconnection of said terminal device with said communication network when said terminal device first accesses through said communication network; and
authenticating said terminal device using said identifier transmitted from said terminal device, when a connection between said terminal device and said communication network is broken by a fault, to recover a connection with another terminal device which had been connected immediately before said terminal device was disconnected from said communication network.
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16. A network connection recovery system for recovering a connection when a fault causes disconnection of any of a plurality of terminal devices connected through a communication network, wherein:
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said system comprises a server device for generating and transmitting an identifier for use in reconnection to said communication network when said terminal device first accesses through said communication network, said terminal device transmits said identifier when a connection is broken between said terminal device and said communication network, and said server device authenticates said terminal device using said transmitted identifier, when said identifier is transmitted from said terminal device, to recover a connection with other terminal devices which had been connected immediately before said terminal device was disconnected from said communication network.
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Specification