Mobile station, and apparatus, system and method for management of emergency calls
First Claim
1. A mobile station comprising:
- a storage part for storing state information indicative of the restriction state of communication in a network, and emergency call information indicative of a number to be dialed to make an emergency call; and
a control part for controlling, on the basis of said state information and said emergency call information, the transmission of a connection request to said network when said restriction state is a state in which only said emergency call is accepted and the number that has been dialed is the number to be dialed to make said emergency call.
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Accused Products
Abstract
The invention comprises emergency call management apparatus (31) and a mobile station (1). The emergency call management apparatus (31) monitors the emergency call generation rate, which is indicative of the rate of generation of emergency calls in a network, and on the basis of the result of this monitoring, transmits state information indicative of the restriction state of communication in that network, when the emergency call generation rate attains a preset condition. The mobile station (1) has emergency number information indicative of a number to be dialed to make an emergency call, and transmits, on the basis of the emergency number information and the received state information, a connection request to the network when the restriction state is a state in which only that emergency call is accepted and the number that has been dialed is the number to be dialed to make that emergency call. This provides a higher probability that an emergency call will be processed in situations in which there is a high rate of generation of emergency calls. This is because in such situations the network only has to process emergency calls.
54 Citations
11 Claims
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1. A mobile station comprising:
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a storage part for storing state information indicative of the restriction state of communication in a network, and emergency call information indicative of a number to be dialed to make an emergency call; and
a control part for controlling, on the basis of said state information and said emergency call information, the transmission of a connection request to said network when said restriction state is a state in which only said emergency call is accepted and the number that has been dialed is the number to be dialed to make said emergency call. - View Dependent Claims (2, 3)
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4. An emergency call management apparatus comprising:
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a monitoring part for monitoring the emergency call generation rate, which is indicative of the rate of generation of emergency calls in a network; and
a management and control part for outputting, on the basis of the result of said monitoring, state information indicative of the restriction state of communication in said network, when said emergency call generation rate attains a preset condition. - View Dependent Claims (5, 6)
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7. An emergency call management system comprising:
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an emergency call management apparatus for monitoring the emergency call generation rate, which is indicative of the rate of generation of emergency calls in a network, and for transmitting, on the basis of the result of said monitoring, state information indicative of the restriction state of communication in said network, when said emergency call generation rate attains a preset condition; and
a mobile station having emergency number information indicative of numbers to be dialed to make an emergency call, and which transmits, on the basis of said emergency number information and said state information that has been received, a connection request to said network when said restriction state is a state in which only said emergency calls are accepted and the number that has been dialed is a number to be dialed to make a said emergency call.
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8. A method for management of emergency calls comprising:
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a step wherein a switch monitors the emergency call generation rate which is indicative of the rate of generation of emergency calls in a network;
a step wherein said switch outputs to a mobile station, on the basis of the result of said monitoring, state information indicative of the restriction state of communication in said network, when said emergency call generation rate attains a preset condition; and
a step wherein said mobile station, on the basis of said state information and emergency number information indicative of preset numbers to be dialed to make emergency calls, transmits to said switch a connection request containing information indicative of a said emergency call, when said restriction state is a state in which only emergency calls are accepted and the number that has been dialed is a number to be dialed to make a said emergency call. - View Dependent Claims (9)
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10. A program for the purpose of executing on a computer a method comprising:
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a step of monitoring the emergency call generation rate which is indicative of the rate of generation of emergency calls in a network;
a step of outputting to a mobile station, on the basis of the result of said monitoring, state information indicative of the restriction state of communication in said network, when said emergency call generation rate attains a preset condition;
a step of receiving a connection request containing information indicative of an emergency call, said connection request having been output by said mobile station in response to said state information; and
a step of outputting to said mobile station, on the basis of said connection request, information permitting connection of said mobile station.
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11. A program for the purpose of executing on a computer a method comprising:
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a step of receiving, from a switch, state information indicative of the restriction state of communication in a network;
a step of determining, on the basis of said state information and emergency number information indicative of preset numbers to be dialed to make emergency calls, when said restriction state is a state in which only said emergency calls are accepted, whether or not the number that has been dialed is a number to be dialed to make a said emergency call; and
a step of transmitting, to said switch, a connection request containing information indicative of a said emergency call, when said dialed number is a number to be dialed to make a said emergency call.
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Specification