JPH07212815A - Incoming control method for mobile communication system - Google Patents

Abstract

PURPOSE:To prevent the moss or call as much as possible to improve the service. CONSTITUTION:A mobile terminal and area management table 54 managing the radio area where mobile terminals exist and an area and line condition management table 55 which manages line use conditions of radio areas and numbers of mobile terminals used at present are provided. If incoming is impossible at the time of request of incoming to a mobile terminal 53x because all of speech lines of a radio area 51a where the mobile terminal 53x exists are busy, the area and line condition management table 55 is referred to retrieve the number of mobile terminals 53y used in the radio area 51a, and the mobile terminal which exists in an adjacent radio area 51b also out of these mobile terminals 53y is retrieved and is switched to a speech line of the adjacent radio area 51b, thus realizing incoming to the mobile terminal 53x to which incoming is requested.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile communication system such as a multi-zone type cordless telephone which accommodates a mobile terminal which can freely move between a plurality of radio areas, and a radio area where all communication lines are in use. The present invention relates to an incoming call control method when an incoming call arrives at a mobile terminal located in the area.

Along with the cordless system of telephones, there is an increasing need for individuals to have mobile terminals and to use them as personal terminals by taking advantage of the mobility characteristic of mobile terminals. Since this mobile communication system uses the wireless line to talk with the mobile terminal, if all the lines in the wireless area are in use, the line cannot be connected even if there is a new incoming call request in the wireless area. Call loss occurs, but it is necessary to reduce this loss rate as much as possible.

[0003]

2. Description of the Related Art As a mobile communication system on a premises, there is a system cordless telephone of a premises system, for example. As shown in FIG. 2, this system cordless telephone has a wireless area 3 formed by connecting a plurality of connecting devices 2a, 2b ... To the system control device 1 and forming these connecting devices 2a, 2b.
mobile terminals 4x, 4y, 4z that form a service area with a, 3b, ...
... is provided with a wireless call service.

In this system cordless telephone, the system controller 1 monitors the wireless area in which each mobile terminal 4x, 4y, 4z is located by position registration. Each mobile terminal 4x, 4y, 4z, ... freely moves between the wireless areas 3a, 3b ... And connects to the connection device 4 of the wireless area 3 in which it is located by a wireless line. Make a call. When the mobile terminal moves from one wireless area to an adjacent wireless area during this call, the system control device 1 switches the communication line of the mobile terminal to that of the adjacent wireless area to switch between the wireless areas. It is designed so that calls can be continued even when moving.

[0005]

In the conventional system cordless telephone, when all the communication lines of the connection device in a certain wireless area are in use, a waiting mobile terminal in the wireless area makes an incoming call request. However, it was not possible to make an incoming call or notify that there was an incoming call.

The present invention has been made in view of the above problems, and an object thereof is to enable an incoming call to a target mobile terminal even when an incoming call is received in a wireless area where all the communication lines are in use. It is intended to improve the serviceability by changing the setting or by notifying the target mobile terminal that an incoming call has been received.

[0007]

FIG. 1 is an explanatory view of the principle according to the present invention. A mobile communication system that performs the incoming call control method of the present invention includes a plurality of wireless areas 51a and 51b.
.. Make a wireless call with mobile terminals 53x, 53y .. that move arbitrarily within the service area formed by. In the incoming call control method of the present invention, the control device for controlling the system,
A mobile terminal / area management table 54 for managing in which radio area the mobile terminals 53x, 53y ... Are located, and each radio area 51a, 51b.
Area / line status management table 5 that manages the line usage status and the number of the mobile terminal currently in use for each wireless area
5 and. Now, when an incoming call request is made to a certain mobile terminal 53x, the wireless area 5 in which the mobile terminal 53x is located is located.
If you cannot receive a call because all the call lines of 1a are in use,
By referring to the area / line status management table 55, the number of the mobile terminal 53y ... Used in the wireless area 51a is searched, and the wireless terminal 51y adjacent to the mobile terminal 53y .. A mobile terminal that is in service is searched by referring to the mobile terminal / area management table 54, and if there is an empty line in the adjacent wireless area 51b, the mobile terminal 53y using the line is called in the adjacent wireless area 51b. Switch to the line and switch to the original wireless area 51
An empty call line is created in a and the incoming call request is made to the mobile terminal 53x using the empty call line.

Further, the present invention further comprises a line switching automatic / manual selection table for registering whether the call line to the adjacent wireless area of the mobile terminal in use is automatically switched or designated by the caller. If registered as automatic mode, the above-mentioned call line switching processing is automatically performed, and if registered as manual mode, the above-mentioned call line switching processing is performed when the caller specifies the call line switching. You may do it.

The present invention further comprises a mobile terminal type information table for registering, for each mobile terminal, whether or not to perform the processing of switching the communication line to the adjacent wireless area of the mobile terminal in use, and the incoming call request is made. By referring to the mobile terminal type information table for the existing mobile terminal, it may be determined whether or not the processing for switching the communication line to the adjacent wireless area of the mobile terminal in use is executed.

Further, in the present invention, there is no mobile terminal in use that can switch the line to the adjacent wireless area, or mode setting is performed so as not to switch the line, and a call to the adjacent wireless area of the in-use mobile terminal is made. When the line switching is not performed, instead of this call line switching, the call may be transferred to a fixed terminal installed in the wireless area in which the mobile terminal that has made the incoming call request is located.

Further, according to the present invention, there is no mobile terminal in use that can switch the line to the adjacent radio area, or mode setting is performed so as not to switch the line so that the mobile terminal in use can make a call to the adjacent radio area. When line switching is not performed, instead of this call line switching, an incoming call notification indicating that there is an incoming call may be given to the mobile terminal that has made the incoming call request through the control line.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows a mobile communication system (in-house system cordless telephone) that performs an incoming call control method as an embodiment of the present invention, and FIG. 3 shows a detailed configuration of a system control device in the mobile communication system. Be done. In this mobile communication system, the system control device 1 includes a plurality of connection devices 2a.
, Fixed telephones 5a, 5b, ..., Tone generator 6 and Talkie generator 7, which are respectively installed in the wireless areas 3a, 3b .... Formed by the respective connection devices 2a, 2b.

As shown in FIG. 3, the system control device 1 includes a switching processing unit 11, a processing analysis unit 12, and a line control unit 1.
3, input / output processing unit 14, calling area determination unit 21, telephone line switching processing unit 22, terminal state changing unit 23, location registration management unit 24, registration processing unit 25, selection processing unit 26, and various tables 40 to 47. It is composed including.

The various tables 40 to 47 will be described with reference to FIG. 4. Connection device line state management table 40: Corresponding to the wireless area number, the number of the connection device forming the wireless area and the communication line of the connection device. Table that manages information of mobile terminals that are using the communication line in the wireless area in the air-blocked state Mobile terminal area management table 41: Dynamically manage the location of the mobile terminal (the wireless area in which it is located) corresponding to the mobile terminal number Table Area Mobile terminal management table 42: Table that manages mobile terminal information corresponding to wireless area numbers Line switching automatic / manual selection table 43: Call line switching is performed automatically, by the caller's designation, or by calling Table for storing whether to perform depending on the type of caller or called party Mobile terminal type information table 44: Mobile terminal Table for managing line switching selection type, fixed telephone transfer selection type, and incoming call notification selection type for number correspondence Fixed area telephone registration table 45: Table for managing fixed telephone numbers corresponding to wireless areas Fixed telephone transfer automatic / Manual selection table 46: Whether to transfer to a fixed telephone automatically or by the caller's designation,
Or, a table that stores whether to perform the call depending on the type of caller or callee. Incoming call notification automatic / manual selection table 47: When an incoming call to a mobile terminal is received and an incoming call is not possible due to all the communication lines of the connected device being used, etc. It is a table that stores whether it is performed automatically, designated by the caller, or performed depending on the type of caller or callee.

The calling area determining unit 21 is a circuit for determining a wireless area for calling the called terminal based on the called party information and the mobile terminal area management table 41. The call line switching processing unit 22 is a circuit that switches the call line between the connection devices. The terminal state changing unit 23 is a circuit that monitors whether the communication line is occupied or not and updates the corresponding portion of the connection device line state management table 40. The location registration management unit 24 stores the location of the mobile terminal along with the movement of the mobile terminal in the mobile terminal area management table 4
1 and a circuit registered in the area mobile terminal management table 42.

The registration processing unit 25 is a circuit for registering the tables 43 to 47, and registers any one of the modes of automatic / manual / caller / callee type in the line switching automatic / manual selection table 43. The type of mobile terminal is registered in the terminal type information table 44, the telephone number of the fixed telephone is registered in the area-compatible fixed telephone registration table 45, and the automatic / manual selection in the fixed telephone transfer automatic / manual selection table 46 is performed.
Register one of the following modes: manual / caller / callee type, automatic / manual / incoming call notification automatic / manual selection table 47
Registers one of the modes depending on the sender / receiver type and performs processing.

The selection processing unit 26 is a circuit for selecting the processing based on the contents of the tables 43 to 47. The selection processing unit 26 refers to the line switching automatic / manual selection table 43 and the mobile terminal type information table 44, and the radio of the mobile terminal during the call. Select and decide whether or not to perform the area switching process. Refer to the mobile terminal type information table 44 and fixed telephone transfer automatic / manual selection table 46 to select and decide whether or not to perform the fixed telephone transfer process. By referring to the terminal type information table 44 and the incoming call notification automatic / manual selection table 47, it is selected and determined whether or not to perform the incoming call notification process.

Various incoming call control operations by the apparatus of this embodiment will be sequentially described below with reference to FIGS. First, when all incoming communication lines in the wireless area are in use and new incoming calls are not possible, the mobile terminal in the call is switched to the adjacent wireless area while continuing the call to create an empty call line and enable incoming calls. The incoming call control will be described with reference to FIGS. Here, FIG. 5 is a flow chart for explaining the basic operation of line switching of the mobile terminal in use, FIG. 6 is a diagram for explaining the state of the line switching, and FIG. 7 is a setting example of various tables in the case of basic operation. FIG. 8 and FIG. 8 are examples of setting various tables when line switching is selected by automatic / manual / caller type.

First, the basic operation will be described. In this basic operation, when the caller calls the mobile terminal 4x, the wireless area 3a (connector 2
a) is called, but if all the communication lines in the wireless area 3a are in use and the call cannot be made, even in the wireless area 3b (connecting device 2b) adjacent to the wireless area 3a among the mobile terminals in the wireless area 3a. The mobile terminal 4y that can talk is extracted, the mobile terminal 4y is transferred to the call in the wireless area 3b (connecting device 2b) (wireless area switching), and an empty call line is created in the wireless area 3a. It is used to make an incoming call to the mobile terminal 4x.

This operation will be described in detail. When the caller A dials the mobile terminal 4x (step S1), the calling area determining unit 21 causes the mobile terminal area management table 41 to operate.
By using the terminal number x of the mobile terminal 4x as an index, the area number a of the wireless area 3a in which the mobile terminal 4x is located
Is extracted (step S2). Further, using the area number a of the wireless area 3a, the line status of the connecting device 2a forming the wireless area 3a is checked in the connecting device line status management table 40 (step S3).

As a result of this examination, if the line status is that there is an empty line, an incoming call is made to the mobile terminal 4x (step S4). On the other hand, if the line status is that all the lines are in use and the incoming call is impossible, the connection device line status management table 40 is referred to extract the information of the mobile terminals 4y ... Which are using the connection device 2a (step S5). ), The wireless area 3b (connection device 2b) other than the wireless area 3a (connection device 2a) that can be used by the mobile terminal 4y is extracted by referring to the mobile terminal area management table 41 (step S7). The state of the extracted wireless area 3b (connection device 2b) is determined by the connection device line state management table 40 (step S
8). This processing (steps S5, S7, S8) is performed in step S5. For the mobile terminals in use, the mobile terminals in use that are in the wireless area 3a as well as the wireless area with the unused communication line are Repeat until found.

If there is no such mobile terminal, the caller A is notified that the call cannot be received (step S6). On the other hand, when such a mobile terminal (the mobile terminal 4y in this case) is found, the information on the connection device 2b of the wireless area 3b in which the mobile terminal 4y is located other than the wireless area 3a is transferred to the call line switching processing unit 22. To notify. The call line switching processing unit 22 sends an instruction for switching the mobile terminal 4y to the connecting device 2b to the connecting device 2a. When this switching instruction is transmitted, the mobile terminal 4y switches the connection device from the connection device 2a to the connection device 2b while continuing the call by the known wireless area switching technique (step S9). Then, an incoming call is made to the mobile terminal 4x by using the idle call line created in the wireless area 3a by switching the line of the mobile terminal 4y (step S10).

FIG. 6 shows how the mobile terminal 4y during a call is switched to the wireless area. In the case of (A) in the figure, the mobile terminal 4x is unused (callable), but cannot be connected because the call line of the connection device 2a is all in use. Therefore, as shown in (B) in the figure, the mobile terminal 4y that was using the connection device 2a is moved to the connection device 2b, and the mobile terminal 4x is connected by the connection device 2a using the vacant communication line.

Since the wireless area switching of the mobile terminal during a call as described above deteriorates the line quality in the wireless area of the switching destination or causes a momentary disconnection at the time of switching, there is always no request for a new incoming call. It may not be desirable to perform wireless area switching under certain conditions. Further, since the caller or the callee is a special person (for example, a security guard), there is a case where the caller / callee regarding the person is preferentially performed even if the call state of another mobile terminal is slightly sacrificed. Therefore, in the device of the present embodiment, the wireless area switching process of the mobile terminal during a call is automatically performed, based on the designation of the caller, or depending on the type of the caller / callee. Are registered in the line switching automatic / manual selection table 43 so that they can be selected.

That is, as shown in FIG. 8, the line switching automatic / manual selection table 43 of the system controller 1 is set in the "automatic" mode, the "manual" mode, or the "caller / manual" mode.
The mode according to the type of the called party is registered in advance. Further, in the mobile terminal type information table 44, the "forced line switching" mode, the "automatic" mode, or the "manual" mode is registered in advance for each mobile terminal.

When the caller A calls the mobile terminal 4x, the caller calls the wireless area 3a, which is the current position of the mobile terminal 4x, but if the call cannot be made because all the call lines in the wireless area 3a are busy, the line switching is automatically performed. / Extract the selection conditions registered in the manual selection table 43.

When the "automatic" mode is selected as the selection condition, the wireless area switching process of the mobile terminal 4y is immediately performed regardless of the intention (operation) of the caller. When the "manual" mode is selected, the tone or talkie generated by the tone generator 6 or the talkie generator 7 is sent to the caller A to notify that the line state of the connection device 2a is in use. Then, the caller A is prompted to perform an operation, and when the caller's operation is designated in response to "execution" of the switching process, the wireless area of the mobile terminal 4y is switched,
When "no execution" of the switching process is designated by the caller's operation, the wireless area switching process is not performed.

When "By Caller Type" in the "By Caller / Callee Type" mode is selected, the type of the incoming mobile terminal is checked by referring to the mobile terminal type information table 44. When the destination mobile terminal is, for example, a security-related one and wants to receive an incoming call preferentially, if "line switching" is set as the mobile terminal type, the setting on the mobile terminal type information table 44 of the originating mobile terminal is performed. Even if is in the manual mode or the like, the wireless area switching process is performed regardless of that. If the type of the mobile terminal of the called party is the "automatic" mode or the "manual" mode, the processing is performed automatically or according to the designation of the caller.

If "By caller type" in "By caller / callee type" mode is selected, the originating mobile terminal is an important terminal when making a call from the mobile terminal side. If so, by setting “line switching” in the mobile terminal type information table 44 in advance, even if all the call lines in the wireless area are in use at the time of calling, the mobile terminal in a call that can switch the wireless area The line is forcibly switched to the adjacent area so that the call can be transmitted with priority.

9 to 11 are diagrams for explaining incoming call control in the case where fixed telephone transfer is performed instead of the above-mentioned wireless area switching by the apparatus of this embodiment. This incoming control, when there is a new incoming call request in the wireless area where all the call lines are in use, when there is no mobile terminal in the call that can switch the wireless area, and the incoming call cannot be made to the target mobile terminal, Alternatively, it is effective when an incoming call to the target mobile terminal cannot be made because the wireless area of the mobile terminal during the call is not switched by setting the selection condition.

In this incoming call control, when the incoming call to the target mobile terminal (eg mobile terminal 4x) is impossible, the fixed telephone 5a closest to the mobile terminal 4x is moved to the wireless area 3a in which the mobile terminal 4x is located. Based on the area number a of the (connecting device 2a), it is extracted by referring to the area-corresponding fixed-line telephone registration table 45. Since the line state of the connecting device 2a is being used by the caller A, the call is received by the fixed-line telephone. After the fixed telephone transfer notification to that effect is given by a talk or tone, the corresponding fixed telephone 5a is called and received. As a result, the person who picked up the fixed telephone 5a
It is possible to act as an agent for the user of the mobile terminal 4a estimated to be in the vicinity of the user.

FIG. 9 shows the state of this fixed telephone transfer. In the case of (A) in the figure, the mobile terminal 4x is unused (communication is possible), but connection cannot be established because all the communication lines of the connection device 2a are in use. Therefore, as shown in (B) of the figure, the fixed telephone 5a closest to the mobile terminal 4a.
To notify the caller that the fixed telephone transfer is to be executed.

In the apparatus of this embodiment, similar to the above-mentioned wireless area switching processing of the mobile terminal during a call, this fixed telephone transfer is performed automatically, based on the designation of the caller, or the caller / incoming call. Each mode of whether to perform according to the type of person is registered in the fixed telephone transfer automatic / manual selection table 46 and can be selected.

That is, as shown in FIG. 11, in the fixed telephone transfer automatic / manual selection table 46, the "automatic" mode,
The "manual" mode or the "caller / callee type" mode is registered in advance. In addition, the "transfer" mode, the "automatic" mode, or the "manual" mode is registered in advance in the mobile terminal type information table 44 for each mobile terminal.

When the caller A calls the mobile terminal 4x, the caller calls the wireless area 3a, which is the current position of the mobile terminal 4x. The selection conditions registered in the automatic / manual selection table 46 are extracted.

When the "automatic" mode is selected as the selection condition, the above fixed telephone transfer processing is immediately performed regardless of the intention (operation) of the caller. When the "manual" mode is selected, a tone or talk is sent to the caller A to notify that the line state of the connection device 2a is in use, and the caller A is prompted to perform an operation. When "execution" of the fixed telephone transfer process is designated by the caller's operation, the call is transferred to the fixed telephone 5a. When the fixed telephone transfer processing "no execution" is designated by the caller's operation, the transfer is not performed.

When "By callee type" in the "By caller / callee type" mode is selected, the type of the incoming call destination mobile terminal is checked by referring to the mobile terminal type information table 44. If the destination mobile terminal is, for example, a security-related one and wants to receive an incoming call preferentially, if "with transfer" is set as the mobile terminal type, on the mobile terminal type information table 44 of the originating mobile terminal. Even if the setting is in manual mode, etc., it transfers to the fixed telephone regardless of that. When "No transfer" is set, no call is received to the nearest fixed telephone. Further, in the "automatic" mode or the "manual" mode, the processing is performed automatically or according to the designation of the caller.

FIG. 12 to FIG. 14 are diagrams for explaining incoming call control in the case where the apparatus of this embodiment performs incoming call notification instead of the above-mentioned wireless area switching. Similar to the above-mentioned fixed telephone transfer, this incoming call control is performed to the target mobile terminal because there is no mobile terminal during a call that can switch the wireless area when there is a new incoming call request in the wireless area where all call lines are in use. When the incoming call to the target mobile terminal cannot be made because the wireless area of the mobile terminal during a call is not switched due to the setting of the selection conditions, or when the fixed telephone transfer cannot be made. Is effective for.

In this incoming call control, when the incoming call to the target mobile terminal (for example, the mobile terminal 4x) is impossible, the necessary information (for example, the outgoing call) is sent to the mobile terminal 4x as the incoming call request destination by using the control line. The person number, a message such as a request action such as waiting or calling again to the caller) is notified, and the user of the mobile terminal 4x is notified of an incoming call notification indicating that the mobile terminal 4x has an incoming call.
Further, the caller is notified by tone or talk that the incoming call notification has been executed. The incoming call notification may be a notification by ringing a ringing bell or the like in addition to the display on the display.

FIG. 12 shows the incoming call notification. As shown in (A) of FIG.
Called x, but mobile terminal 4x is unused (callable)
However, since the communication line of the connection device 2a is in full use, connection cannot be established. Therefore, as shown in (B) in the figure, the mobile terminal 4x is notified that there is a call request using the control line of the connection device 2a, and the caller is notified of the call request.
Notify execution of call request notification to the effect that a call request has been made.

In the device of the present embodiment, similar to the above-mentioned wireless area switching processing of the mobile terminal during a call, this notification of incoming call is performed automatically, based on designation of the caller, or caller / callee. Each mode of whether to perform according to the type is registered in the incoming call notification automatic / manual selection table 47 and can be selected.

That is, as shown in FIG. 14, in the incoming notification automatic / manual selection table 47, the "automatic" mode, the "manual" mode, or the "caller / callee type" is used.
Register the mode in advance. In addition, in the mobile terminal type information table 44, an "incoming call notification" mode, an "automatic" mode, or a "manual" mode is registered in advance for each mobile terminal.

When the caller A calls the mobile terminal 4x, the caller calls the wireless area 3a, which is the current position of the mobile terminal 4x. / Extract the selection conditions registered in the manual selection table 47.

When the "automatic" mode is selected as the selection condition, the above-described incoming call notification processing is immediately performed regardless of the caller's intention (operation). When the "manual" mode is selected, a tone or talk is sent to the caller A to notify that the line state of the connection device 2a is in use, and the caller A is prompted to perform an operation. When "execution" of the incoming call notification process is specified by the caller's operation, the incoming call is notified to the mobile terminal 4x of the incoming call request destination through the control line, and "no execution" of the incoming call notification process is performed by the caller's operation. If is specified, the incoming call notification is not performed.

When "By type of callee" in "By type of caller / receiver" is selected, the type of the incoming call destination mobile terminal is checked by referring to the mobile terminal type information table 44. If the mobile terminal of the incoming call destination is, for example, a security-related one and wants to receive an incoming call preferentially, if "incoming call notification" is set as the mobile terminal type, the mobile terminal type information table 44 of the originating mobile terminal The target mobile terminal 4x regardless of whether the settings are in manual mode, etc.
Incoming call notification to. When "No notification of incoming call" is set, incoming call notification is not performed. Further, in the "automatic" mode or the "manual" mode, the processing is performed automatically or according to the designation of the caller.

In the above embodiments, the case where the present invention is applied to the system cordless telephone has been described, but the present invention is not limited to this. For example, an incoming call control method and an incoming call for switching a mobile terminal in use to an adjacent wireless area. The incoming call control method for notifying can also be applied to automobiles, mobile phone systems, and the like.

[0047]

The greatest merit of mobile terminals such as cordless terminals is that they can move freely in space, but for this reason many mobile terminals are temporarily concentrated in the same wireless area and all the communication lines are used. And a new call loss may occur. Even when all the communication lines are used, according to the present invention, it is possible to reduce the number of cases in which the incoming call to the waiting mobile terminal is disabled, and to reduce the call loss rate. In addition, even if the call to the target mobile terminal cannot be received, the call can be made to the nearest fixed telephone so that it can be transferred to the user of the target mobile terminal, or that there is an incoming call request to the target mobile terminal through the control line. It can be displayed on the display.

[Brief description of drawings]

FIG. 1 is a diagram illustrating the principle of the present invention.

FIG. 2 is a diagram showing a mobile communication system (system cordless telephone) that performs an incoming call control method according to an embodiment of the present invention.

FIG. 3 is a block configuration diagram of a system control device in the embodiment.

FIG. 4 is a diagram illustrating various table configurations in the embodiment.

FIG. 5 is a flowchart showing a procedure of switching a wireless area of a mobile terminal in use in an embodiment.

FIG. 6 is a diagram showing a state of wireless area switching of a mobile terminal being used in an embodiment.

FIG. 7 is a setting example of table contents in the case of a basic operation of switching a wireless area of a mobile terminal being used in an embodiment.

FIG. 8 is a setting example of table contents in the case where wireless area switching of a mobile terminal in use is selected by automatic / manual and by sender / receiver type in the embodiment.

FIG. 9 is a diagram showing a state of fixed telephone transfer in the embodiment.

FIG. 10 is a setting example of table contents in the case of a basic operation of fixed telephone transfer according to the embodiment.

FIG. 11 is a setting example of table contents when fixed telephone transfer is selected as automatic / manual or by caller / callee type in the embodiment.

FIG. 12 is a diagram showing how an incoming call notification is sent in the embodiment.

FIG. 13 is a setting example of table contents in the case of the basic operation of the incoming call notification in the embodiment.

FIG. 14 is a setting example of table contents when an incoming notification is selected by automatic / manual or by sender / receiver type in the embodiment.

[Explanation of symbols]

 1 system control device 2a, 2b connection device 3a, 3b wireless area 4x, 4y, 4z mobile terminal 5a, 5b fixed telephone 6 tone generator 7 talkie generator 11 exchange processing unit 12 processing analysis unit 13 line control unit 14 input / output processing Part 21 Calling area determination part 22 Call line switching processing part 23 Terminal state changing part 24 Location registration management part 25 Registration processing part 40 Connected device line status management table 41 Mobile terminal area management table 42 Area mobile terminal management table 43 Line switching automatic / Manual selection table 44 Mobile terminal type information table 45 Area compatible fixed telephone registration table 46 Fixed telephone transfer automatic / manual selection table 47 Incoming call notification automatic / manual selection table

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideaki Shimizu Inventor Hideaki Shimizu 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Fujitsu Kansai Communication Systems Co., Ltd.

Claims (5)

[Claims] 1. A plurality of wireless areas (51a, 51b.
A method for controlling the incoming call of a mobile communication system for making a wireless call with a mobile terminal (53x, 53y ...) Arbitrarily moving within a service area formed by Mobile terminal / area management table (5
4), and the area / line status management table (55) that manages the line usage status of each wireless area and the number of the mobile terminal currently in use for each wireless area. When an incoming call request is made to a certain mobile terminal, When all the call lines in the wireless area in which the mobile terminal is located are in use and cannot receive calls, the area / line status management table is referred to search for the number of the mobile terminal in use in the wireless area, Among the mobile terminals in use, a mobile terminal that is also in an adjacent wireless area at the same time is searched for by referring to the mobile terminal / area management table, and if there is an empty line in the adjacent wireless area, the search is performed. Switch the mobile terminal that is using the line to the call line of the adjacent wireless area to create an empty call line in the original wireless area, and use the empty call line to move to the mobile terminal that made the incoming call request. Incoming call control method for performing a trust. 2. A circuit switching automatic / manual selection table for registering whether to automatically switch the call line to the adjacent wireless area of the mobile terminal being used or to specify it by the caller is provided, and the automatic mode is registered. In the case where the call line is switched, the call line switching process is automatically performed, and when the caller specifies the switch of the call line when the manual mode is registered, the call line switching process is performed. The incoming call control method described in 1. 3. A mobile terminal for which an incoming call request is made, further comprising a mobile terminal type information table for registering whether or not the processing for switching the communication line to the adjacent wireless area of the mobile terminal in use is registered for each mobile terminal. 3. The incoming call control method according to claim 2, further comprising: referring to the mobile terminal type information table to determine whether or not to execute the processing for switching the communication line to the adjacent wireless area of the mobile terminal in use. 4. When the call terminal is not switched to the adjacent wireless area of the in-use mobile terminal, the call terminal is replaced in place within the wireless area where the mobile terminal that has made the incoming call request is located. 4. The incoming call control method according to claim 1, wherein the incoming call is transferred to a fixed terminal. 5. When a call line is not switched to the adjacent wireless area of the in-use mobile terminal, instead of this call line switching, an incoming call is made to the mobile terminal which made the incoming call request through the control line. The incoming call control method according to any one of claims 1 to 3, wherein the incoming call notification to that effect is performed.