Mobile-service switching center, base station controller, multicall communication mode supporting terminal and method of changing number of calls in multicall communication mode
First Claim
1. A mobile-service switching center comprising:
- determining section for determining whether a call request is a call from a first multicall communication mode supporting terminal, which is capable of supporting a plurality of calls at a time or from a single-call communication mode supporting terminal, which is capable of supporting only a single call at a time;
event detecting section for detecting an event caused by a handover occurrence or fluctuation of a congested state; and
call-number changing section capable of changing the number of continuing calls of the first multicall communication mode supporting terminal which is determined by the determining section, when an event is detected by the event detecting section detects any event during the communication,wherein the call-number changing section comprises;
special message notifying section capable of transmitting a special message having inserted therein the number of calls changing information regarding the increases and decreases of the plurality of calls, to a base station controller for controlling a base station and the first multicall communication mode supporting terminal;
reply receiving section for receiving a reply regarding a desired call to continue which is selected by the first multicall communication mode supporting terminal from the plurality of calls which are notified by the special message notifying section; and
handover rearranging section for rearranging the connection status in such a manner that the desired call to continue which is designated in the reply received by the reply receiving section is maintained and an undesired call which is not selected by the first multicall communication mode supporting terminal is disconnected.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus of changing the number of calls in a multicall communication mode including detecting an occurrence of handover, transmitting a special message having inserted therein call-number changing information regarding the increase or decrease of a number of calls to a switching center as a connection destination connected by handover, transmitting the special message to inform a number of calls capable of being supported to a mobile terminal, receiving a reply regarding a desired call to be maintained selected from a plurality of calls, and rearranging the handover process so the desired call is maintained in connection while the call not desired is disconnected. Thereby allowing the user of the mobile terminal to select a desired call to be maintained when handover is executed under the congested state condition in the communication system which hinders smooth handover from one switching center to another.
32 Citations
24 Claims
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1. A mobile-service switching center comprising:
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determining section for determining whether a call request is a call from a first multicall communication mode supporting terminal, which is capable of supporting a plurality of calls at a time or from a single-call communication mode supporting terminal, which is capable of supporting only a single call at a time; event detecting section for detecting an event caused by a handover occurrence or fluctuation of a congested state; and call-number changing section capable of changing the number of continuing calls of the first multicall communication mode supporting terminal which is determined by the determining section, when an event is detected by the event detecting section detects any event during the communication, wherein the call-number changing section comprises; special message notifying section capable of transmitting a special message having inserted therein the number of calls changing information regarding the increases and decreases of the plurality of calls, to a base station controller for controlling a base station and the first multicall communication mode supporting terminal; reply receiving section for receiving a reply regarding a desired call to continue which is selected by the first multicall communication mode supporting terminal from the plurality of calls which are notified by the special message notifying section; and handover rearranging section for rearranging the connection status in such a manner that the desired call to continue which is designated in the reply received by the reply receiving section is maintained and an undesired call which is not selected by the first multicall communication mode supporting terminal is disconnected. - View Dependent Claims (2)
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3. A mobile-service switching center apparatus comprising:
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determining section for determining whether a call request is a call from a first multicall communication mode supporting terminal, which is capable of supporting a plurality of calls at a time or from a single-call communication mode supporting terminal, which is capable of supporting only a single call at a time; event detecting section for detecting an event caused by a handover occurrence or fluctuation of a congested state; and call-number changing section capable of changing the number of continuing calls of the first multicall communication mode supporting terminal which is determined by the determining section, when an event is detected by the event detecting section detects any event during the communication, wherein the call-number changing section comprises; call selecting section for selecting a call to be disconnected from the plurality of calls under communication based on a predetermined condition; call disconnect notifying section for transmitting a call disconnect message to the first multicall communication mode supporting terminal corresponding to the disconnected call selected by the call selecting section; reply receiving section capable of receiving a reply regarding a desired call to continue selected by the first multicall communication mode supporting terminal which received the disconnect message from the call disconnect notifying section; and handover rearranging section for maintaining connection corresponding to the desired call to continue which is designated by the reply received by the reply receiving section and disconnect an undesired call to continue selected from the plurality of calls by the first multicall communication mode supporting terminal. - View Dependent Claims (4, 5, 6, 7, 8, 9)
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10. A method of changing the number of calls in a multicall communication mode for use in a switching center system which comprises a first multicall communication mode supporting terminal for transmitting and receiving a radio signal, a base station controller for controlling a base station, and a mobile-service switching center for transmitting and receiving information regarding a plurality of calls so that a communication status is settled between the first multicall communication mode supporting terminal and the base station controller, the method comprising:
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a step of detecting an event caused by an occurrence of handover and a fluctuation in congesting state of a network; a step of notifying a special message having inserted therein call-number changing information regarding the increases and decreases of call-numbers to a switching center as a connection destination connected by the handover when the event is detected at the event detecting step; a step of receiving a reply regarding a desired call to continue selected by the first multicall communication mode supporting terminal from the plurality of calls notified by the special message created at the special message notifying step; and a step of rearranging the handover in such a manner that the desired call to continue designated by the reply received at the reply receiving step is maintained in connection and an undesired call to continue, the undesired call is not selected from the plurality of calls by the first multicall communication mode supporting terminal. - View Dependent Claims (11, 12)
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13. A method of changing the number of calls in a multicall communication mode for use in a switching system which comprises a first multicall communication mode supporting terminal for transmitting and receiving a radio signal, a base station controller for controlling a base station, and a mobile-service switching center for transmitting and receiving information regarding a plurality of calls so that a communication status is settled between the first multicall communication mode supporting terminal and the base station controller, the method comprising:
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a first transmitting step for transmitting a handover request from the mobile-service switching center to a mobile-service switching center as a connection destination to be connected by the handover; a second transmitting step for transmitting a message containing data indicative of a number of calls allowable to continue based on the capacity and the congesting state of the mobile-service switching center as a connection destination, the message is transmitted from the mobile-service switching center as a connection destination at the first transmitting step; and a call-number notifying step for transmitting a message indicative of an additional number of calls allowable to continue from the mobile-service switching center to the first multicall communication mode supporting terminal, if the number of calls, the number is contained in the message sent at the second transmitting step, allowable to continue is larger than the current number of calls supported by the first multicall communication mode supporting terminal. - View Dependent Claims (14, 15)
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16. A switching center system comprising:
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a determining section for determining whether a call request is a call from a first multicall communication mode supporting terminal, which is capable of supporting a plurality of calls at a time or from a single-call communication mode supporting terminal, which is capable of supporting only a single call at a time; an event detecting section for detecting an event caused by a handover occurrence or fluctuation of a congested state; and a call-number changing section capable of changing the number of continuing calls of the first multicall communication mode supporting terminal which is determined by the determining section, when an event is detected by the event detecting section during the communication, wherein the call-number changing section comprises; a special message notifying section capable of transmitting a special message having inserted therein the number of calls changing information regarding the increases and decreases of the plurality of calls, to a base station controller for controlling a base station and the first multicall communication mode supporting terminal; a reply receiving section for receiving a reply regarding a desired call to continue which is selected by the first multicall communication mode supporting terminal from the plurality of calls which are notified by the special message notifying section; and a handover rearranging section for rearranging the connection status in such a manner that the desired call to continue which is designated in the reply received by the reply receiving section is maintained and an undesired call which is not selected by the first multicall communication mode supporting terminal is disconnected. - View Dependent Claims (17)
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18. A switching center system comprising:
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a determining section for determining whether a call request is a call from a first multicall communication mode supporting terminal, which is capable of supporting a plurality of calls at a time or from a single-call communication mode supporting terminal, which is capable of supporting only a single call at a time; an event detecting section for detecting an event caused by a handover occurrence or fluctuation of a congested state; and a call-number changing section capable of changing the number of continuing calls of the first multicall communication mode supporting terminal which is determined by the determining section, when an event is detected by the event detecting section during the communication, wherein the call-number changing section comprises; a call selecting section for selecting a call no be disconnected from the plurality of calls under communication based on a predetermined condition; a call disconnect notifying section for transmitting a call disconnect message to the first multicall communication mode supporting terminal corresponding to the disconnected call selected by the call selecting section; a reply receiving section capable of receiving a reply regarding a desired call to continue selected by the first multicall communication mode supporting terminal which received the disconnect message from the call disconnect notifying section; and a handover rearranging section for maintaining connection corresponding to the desired call to continue which is designated by the reply received by the reply receiving section and disconnect an undesired call to continue selected from the plurality of calls by the first multicall communication mode supporting terminal. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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Specification