JP2003046643A - Connection control method for call, housing method for voice processor, mobile communication exchange and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent installation costs from being increased by the location of useless voice processors by locating the voice processors while distributing them so that a number of available channels can be reduced and to provide a call connection control method for the mobile communication exchange of a multiprocessor system. SOLUTION: By locating the voice processors while distributing them, a base station modem is housed while being distributed. When a speech channel is assigned from the base station modem to the voice processors housed in different call processing processors, the call processing processor inquires information on the accommodating location of the assigned speech channel to this call processing processor by inter-processor communication, and the assigned call channel is connected corresponding to the acquired accommodating location information. The accommodation of an inter-station line is similarly controlled as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to accommodation control of a base station device in a switching network in a mobile communication system.
The present invention also relates to control of accommodating an interoffice line between exchanges in an exchange network. The present invention relates to a large capacity digital mobile switching center (NM) that accommodates a large number of radio control areas.
It is used for LS).

[0002]

2. Description of the Related Art Conventional PDC (Personal Digital Cell)
A large-capacity digital mobile telecommunications switch (NMLS) has been developed that accommodates a large number of wireless control areas, including a subscriber switching function, a relay switching function, and a gateway switching function in the regular telecommunication system).

This digital mobile communication exchange has a multi-processor configuration having a plurality of processors in order to realize a subscriber exchange function and a relay exchange function.

Now, regarding the accommodation of the base station related equipment of the digital mobile communication exchange, the voice processing equipment (SPE) such as the voice code decoding circuit accommodates the base station control equipment (BCE) in the same radio area. The condition is that the call processor (CLP) is housed in the same call processor. At this time, the capacity of one base station controller (BCE) is about 720 channels, 1
The maximum number of channels per voice processing device is 864. Considering the processing capacity per call processing processor, the ratio of call processing processor: base station control device: voice processing device is 1: 1: 1.

[0005]

However, since the voice processing device needs to be distributed and accommodated, if the distributed accommodation is taken into consideration: 1:
It becomes 1: 2, and it becomes necessary to install two audio processing devices that use only about half of the maximum number of channels.

FIG. 6 shows an arrangement example of such a voice processing apparatus. The base station modulation / demodulation apparatus is arranged so that the number of channels that can be accommodated in each call processor is arranged, and further, for the base station modulation / demodulation apparatus. If the voice processing devices are arranged in the respective call processors so as to accommodate the lines (MDE lines) in a distributed manner, the number of channels used per voice processing device becomes about half of the maximum number, and the voice processing devices are wasted. Will be placed.

The present invention solves such a problem by preventing the wasteful installation of the voice processing devices during distributed storage,
An object of the present invention is to provide a housing method and an exchange that can reduce the installation cost of a voice processing device. Further, the present invention is
It is an object of the present invention to provide an accommodating method and an exchange capable of controlling connection so that the arrangement of the voice processing device is not limited by the arrangement of the call processor and the voice processing device can be flexibly accommodated in the exchange. The present invention also provides an exchange and a connection method thereof, which enables connection control to be performed by a corresponding call processor in the same manner as the accommodation control of a voice processing device for accommodation control of an interoffice line between exchanges. The purpose is to do.

[0008]

A call processor having a multiprocessor configuration controls connection of a communication channel to an exchange network having a switching function in the exchange. At this time, the connection control of each call processor does not control all the communication channels, but the accommodation range in the exchange network is managed in units of call processors.

From the perspective of the base station device, the voice processing devices are distributed and installed so that the base station modulation / demodulation device can be accommodated in a plurality of voice processing devices, and the base station modulation / demodulation device is accommodated by the corresponding base station control device. This call processor can be accommodated in a voice processor corresponding to the base station controller accommodated in another call processor.

Here, the base station apparatus (base station modulation / demodulation apparatus) captures and allocates an empty radio communication channel as a communication channel for the mobile unit to communicate. The assigned communication channel is notified to the base station controller and the call processor via the control channel. The call processor that has received the notification (capture request) of the assigned call channel executes connection control with the switch network that is the switching unit on the switch side of the notified call channel. It is necessary to know the network accommodation position of. The network accommodation position is a position accommodated in the switching unit of the exchange,
It corresponds to the interface number of the exchange network.
When a call occurs, the base station modulation / demodulation device allocates a free communication channel and notifies the exchange of the allocated communication channel number via the control channel. The call processor determines whether the call channel notified from the line state management information managed by the call processor to capture the notified call channel is accommodated in the call processor or another call channel. It is determined whether the call processor is accommodated. If another call processor is accommodated, the call processor is inquired about the accommodation position of the call channel, and a notification is given based on the accommodation position information. The call processing channel is connected to accommodate the voice processing device in the exchange network.

The same applies to the accommodation control of the interoffice line from the other exchanges, and the call processor similarly controls the connection of the interoffice line to the exchange network. At this time, when the notification of the free inter-office line assigned from the other exchange is made,
The position information that accommodates the inter-office line and the call processor that controls the connection are determined. The call processor is determined by the number of the interoffice line notified by the resource management means that manages the accommodation position information in the exchange network and which is notified of which interoffice line the call processor is assigned. Since this is possible, this determined call processor executes the connection control to the exchange network.

The present invention can also be implemented as a program which, when installed in a multiprocessor type mobile communication exchange, causes this processor to operate as a call processing processor which performs the above-mentioned operation.

By doing so, it is possible to reduce the facility cost of the voice processing device without wastefully disposing the voice processing device when the voice processing devices are distributed and accommodated. Also, in connection control by distributed accommodation of inter-station lines, line connection control can be performed without waste.

That is, the present invention is a call connection control method in which a plurality of call processing processors for controlling call connection are provided, and each call processing processor controls connection of a communication channel to a switch network in a switch. When receiving a call channel acquisition notification for accommodating in the exchange network via the control channel, the means for managing the accommodating position information of the call channel in the exchange network for each call processor is inquired and obtained. The call processor controls the connection of the communication channel based on the received accommodation position information.

Further, according to the present invention, in a method for accommodating a voice processing device, wherein a voice processing device connected to a base station modulation / demodulation device is accommodated in a switching network in a switching device by a communication channel, a base station modulation / demodulation device connected to a mobile device Assigns a call channel accommodating the voice processing device from among the idle call channels, notifies the call processor accommodating the base station control device of the assigned call channel via the control channel, When the call channel assigned by the base station modulator / demodulator is accommodated by another call processor, the call processor sends the call channel to the exchange network by interprocessor communication with the other call processor. It is characterized in that the accommodation position information is acquired and the connection control is performed based on the accommodation position information.

Further, according to the present invention, in a method of accommodating an inter-station line for accommodating an inter-station line from another exchange in an exchange network in the exchange, a free inter-station line to the exchange in accordance with a call generated by the other exchange. Allocate, notify this assigned inter-station line via control channel,
Acquiring the accommodating position information from the means for managing the notified accommodating position information of the inter-office line in the exchange network in units of call processors, and the call processor accommodating the inter-office line is in the inter-exchange line exchange network. It is characterized by performing connection control to.

Further, the present invention comprises a plurality of call processing processors for controlling connection of calls, wherein each of the call processing processors is based on accommodation position information in the exchange network in the exchange which has acquired the notified call channel. In a mobile communication exchange equipped with means for performing connection processing by means of the above, a resource management means for managing the accommodation position information of the call channel in the switch network is provided for each call processor, and the call processor notifies the notified call channel. It is characterized in that it includes means for acquiring the accommodation location information in the exchange network from the resource management means and executing connection control to the exchange network.

Further, the present invention is a mobile communication exchange that accommodates a plurality of base stations, and the mobile communication exchange accommodates a corresponding base station control device and performs a plurality of call processings for performing call connection control. A processor and a voice processing device for accommodating a plurality of corresponding base station modulation / demodulation devices and performing voice processing, wherein the base station modulation / demodulation device is capable of allocating speech channels to different voice processing devices, respectively. The processor, the base station modulation and demodulation device of the base station controlled by the base station control device accommodated by the own call processing processor, provides a speech channel to the voice processing device under the control of the base station control device accommodated by another call processing processor. When assigned, information on the accommodation location of the assigned call channel in the exchange network by inter-processor communication with the other call processor Query, characterized in that it comprises a connection control means for connecting traffic channel based on the obtained accommodation position information.

Further, according to the present invention, in a mobile communication exchange provided with a plurality of call processing processors for performing call connection control for connecting the assigned inter-station line to the exchange network in the exchange, an inter-station line to the exchange network is provided. Resource management means for managing accommodation location information on a call processor basis is provided, and means for inquiring the resource administration means of accommodation location information of an allocated inter-vacant station line notified from another exchange, and obtained by the inquiring means. Means for determining a call processing processor for controlling connection of a call based on the accommodation position information of the interoffice line, and causing the call processing processor to perform control.

Further, according to the present invention, the processor is installed in a mobile communication exchange having a plurality of processors so that the processor operates as a call processor for controlling connection of a communication channel, and the call processor is
When a call channel notification for accommodating the voice processing device in the exchange network is accepted via the control channel, if the call channel is accommodated in another call processing processor, the other call processing is performed. It is characterized in that the processor is operated as a call processor for inquiring about the accommodation position information of the call channel in the exchange network through inter-processor communication and controlling the connection of the voice processing device based on the obtained accommodation position information. .

Further, according to the present invention, when installed in a mobile communication exchange having a plurality of processors, the processor is operated as a call processing processor for controlling connection of an assigned inter-office line, and the notified station is notified. The call processing processor for performing connection control of the interoffice line notified based on the information of the resource management means that manages the accommodation position information of the exchange network in the exchange of the interline circuit is determined, and the call processing is performed. It is characterized in that it is operated as a call processing processor that controls the connection of the interoffice line notified by the processor.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 shows the arrangement of base station-related devices of an exchange (large-capacity digital mobile communication exchange) in which the present invention is implemented.

Here, the exchange accommodates a plurality of base stations and is a call processor (CL) for controlling call connection.
P) and a plurality of voice processing devices each including a voice code decoding circuit. This FIG. 1 shows a call processor (C
LP), base station controller (BCE), voice processor (S)
It shows the relationship between the PE) and the call processor (the base station controller and the radio control area. That is, the base station controller (BCE) 11 that controls the signal road surface of the base station modulator / demodulators (MDE) 16, 17, and 18. Are accommodated in the same call processor (CLP # 1) 12. On the other hand, the accommodation of the communication road surface of the base station modulator / demodulators (MDE) 16, 17, and 18 is distributed to the voice processor (SPE) 14 and the voice processor 15. The voice processor 14 is accommodated in the call processor 12, and the voice processor 15 is accommodated in the call processor 13. The call processors 12 and 13 perform connection control of the communication channel.

The present invention is based on the base station modulator / demodulator 17
Selects a call channel assigned to the voice processing device 15, transmits a signal to the base station controller 11, and the call processor 12 that receives the signal changes the call channel of the voice processing device 15 accommodated in a different call processor 13. It is characterized by performing connection control.

FIG. 2 shows accommodation of a base station modulator / demodulator (MDE), a voice processor (SPE), a base station controller (BCE) and a call processor (CLP) in the embodiment of the present invention, and a switch network. It is a figure explaining the accommodation relation of.

The exchange network (NW) is a line interface service control circuit (SIF) that accommodates a HUB and a voice processing device behind a call processor (CLP) in a multiprocessor configuration, and a speech path switch (S).
W) indicates the configuration, and is a switching unit that executes switching in the exchange. Seen from the side of the base station device, it shows the switching unit of the exchange that accommodates the call processor (CLP) and the voice processing device (SPE). The call processors 211 and 212 are responsible for call control of the exchange, and include connection control units 221 and 222 that perform connection control such as switching control of call channels, resource management units 231 and 232 that perform resource management of call channels, and the like. It is provided with line state holding units 241 and 242 for holding the communication channel accommodation position and the line state information indicating whether it is in use or not. In addition, the base station controller (BCE) 251, 252
Are the call control processors 211 and 21 accommodated respectively.
It is under the control of 2. In addition, the voice processing devices 261, 262
Are accommodated in the exchange network 20 by the call channels at the respective accommodation positions, and the base station modulator / demodulator 271,
Reference numeral 272 is connected to the voice processing devices 261 and 262, respectively, through a communication channel, and the base station modulation / demodulation devices 271 and 272 are connected to the base station control devices 251, 252 and the call processing processors 211 and 212, respectively, through control channels.

As the communication channel for the mobile station to communicate, the communication channel used by the base station modulation / demodulation device 271 from the idle communication channel is allocated, and the base station control device 251 and the call processor control device 2 are assigned by the control channels.
11 will be notified. The connection control unit 221 notifies the resource management unit 231 of the notified call channel, and the call c
The network accommodation position for h is the line state holding unit 24.
Collect from 1. The line status holding unit 241 simultaneously closes the corresponding network accommodation position, and manages the corresponding call as being in use. The connection control unit 221 executes connection control based on the collected network accommodation positions.

The resource management section 231 and the line state holding section 241 manage the communication channel / network accommodation position corresponding to the voice processing device 261 which is closed in the call processor 211. Therefore, the management of the communication channel / network accommodation position corresponding to the voice processing device 262 accommodated in another call processor control device 212 is performed as follows.
The resource management unit 232 and the line state holding unit 242 of another call processor control unit 212 perform this.

FIG. 3 shows an example of the arrangement of the connection arrangement when the base station modulation / demodulation apparatus allocates a speech channel to the voice processing apparatus under the control of another call processor to control the connection.

Here, as in FIG. 2, reference numeral 30 is a network of exchanges, reference numerals 311 and 312 are call processor control devices of exchanges, reference numerals 321 and 322 are connection control units, 331 and 332 are resource management units, and 341. , 342
Is a line state holding unit, 351, 352 are base station control devices (BCE), 361, 362 are voice processing devices (SPE), 37
Reference numerals 1 and 372 denote base station modulation / demodulation equipment (MDE).

Here, in order to disperse and accommodate the voice processing devices (SPEs), the communication channel is distributed from the base station modulation / demodulation device 371 to the voice processing devices 361 and 362. Similarly, from the base station modulation / demodulation device 372 to the voice processing devices 361 and 362.
Also the distribution of call channels.

The base station modulator / demodulator 371 includes a voice processor 3
A call channel for 62 is assigned, and its control signal passes through the base station controller 351 by the control channel,
The call processor 311 is notified. Upon receiving the control signal, the connection control unit 321 requests the resource management unit 331 to capture the subscriber line (network accommodation position). The resource management unit 331 communicates with the resource management unit 332 of the call processor 312 because the notified communication channel is found to be accommodated by the call processor 312 from the management information held by the line state holding unit 341. . In this way, the network accommodation position information of the call processor 312 is obtained.

The operation of FIG. 3 will be described with reference to the control flow diagram of the resource management section shown in FIG. 4 and the management data of the line state holding section shown in FIG.

Call processor 40 receiving the control signal
The connection control unit 402 of No. 1 requests the resource management unit 403 to capture the subscriber line (network accommodation position). The resource management unit 403 collects the accommodated processor number and the network accommodation position information from the line state holding unit 404. The resource management unit 403 compares the collected accommodation processor number with the own processor number (405), and returns the collected network accommodation position information to the connection control unit in the case of the own processor (406). In the case of another processor, interprocessor communication is performed with the other processor to inquire network accommodation position information and acquire network accommodation position information (407). The resource management unit 411 of the other call processing processor 410 collects the accommodated processor number and the network accommodation position information from the line state holding unit 412. The resource management unit 411 compares the collected accommodation processor number with the own processor number (413), and returns the collected network accommodation position information to the interprocessor communication source for the own processor (414). The connection control unit 402 connects the call channel notified by the obtained network accommodation position information. Here, the resource management unit performs centralized management by the resource centralized management processor, but since the table is performed for each call processing processor, the accommodation position information of the communication channel accommodated by another call processing processor is used for other call processing processors. This is the process of inquiring about the processing processor.

In the above embodiment, the arrangement of the voice processing unit (SPE) and the base station control unit (BCE) is not restricted by the software processing of the call processor (CLP), and the resource management unit and the line state are maintained. Although it has been explained that the call processor managed by the department and the call processor accommodated in addition to the network accommodating position are also managed, the same can be implemented in accommodating the interoffice line.

(Second Embodiment) In this case, as shown in FIG. 5, inter-station lines are also distributed and accommodated, and the call processors to accommodate the inter-station lines are determined respectively. The connection is controlled by the contained call processor. In the case of an incoming connection from another exchange, its control signal is input to the common signal control processor (CSP) by a common signal line, so that the call processor that accommodates this notified interoffice line is determined. At this time, a call processor that collects the accommodation position information and accommodates the notified inter-office line by making an inquiry to the resource management means that manages the accommodation position information in the exchange network in units of call processors. The call processor thus determined performs connection control of the interoffice line based on the accommodation position information.

For example, as shown in FIG. 5A, the call processor CLP # 1 accommodates an interoffice line with the station A, and the call processor CLP # 2 accommodates an interoffice line with the station B. I shall. At this time, as shown in FIG. 5B, the station B captures the inter-station line # 2, the station A captures the inter-station line # 3, and notifies the common signal control processor (CSP) of the capture request. At this time, the call processor accommodating the interoffice line is determined by the number of the interoffice line, and the call processor CLP # 1 performs connection processing for the interoffice line # 2 with the B station.
The call processor CLP # 2 performs connection processing on the interoffice line # 3 with the station A.

The management method of the resource management unit and the line state holding unit of the inter-station line to be controlled is the same as in the case of FIG. In addition, in the multiprocessor mobile communication switch,
By installing the program, it can be operated as the exchange of the above embodiment. That is, when the processor operates as a call processor and the call processor receives a request for capturing a call channel for accommodating the voice processing device in the exchange network through the control channel, the call channel calls itself. When it is not the call channel accommodated by the processing processor, the call processor that manages the call channel can be inquired by inter-processor communication, the accommodation position information can be acquired, and the call processor can be operated as connection control.

This program can be stored in a storage medium and installed in the exchange, or can be installed via a communication line.

[0041]

According to the present invention, the voice processing device (SP
It is possible to prevent unnecessary installation at the time of distributed accommodation of E) and reduce the equipment cost of the voice processing device. In addition, the cost can be reduced by the processing by software even when the inter-office line is distributed and accommodated.

[Brief description of drawings]

FIG. 1 is a diagram showing an arrangement example of base station related devices of an exchange according to the present invention.

FIG. 2 is a diagram showing a configuration of a first embodiment of the present invention.

FIG. 3 is a diagram showing an example of setting a communication channel in the first embodiment of the present invention.

FIG. 4 is a diagram for explaining a connection operation of a call channel according to the first embodiment.

FIG. 5 is a diagram showing a configuration of a second embodiment for connecting an interoffice line.

FIG. 6 is a diagram showing an arrangement example of base station-related devices of a conventional example.

[Explanation of symbols] 11 Base station controller (BCE) 12, 13 Call Processor (CLP) 14, 15 Speech Processing Equipment (SPE) 16, 17, 18 Base station modem (MDE) 20 switch network 221, 222, 231, 322 Connection control unit 231, 232, 331, 332 resource management unit 241, 242, 341, 342 Line state holding unit

Continued front page    (72) Inventor Takamitsu Fukudome             2-11-1, Nagatacho, Chiyoda-ku, Tokyo Stock             Ceremony company NTT Docomo (72) Inventor Shinya Minakata             2-11-1, Nagatacho, Chiyoda-ku, Tokyo Stock             Ceremony company NTT Docomo F-term (reference) 5K026 AA04 BB02 CC02 CC03 FF01                       FF06 GG01 KK03                 5K051 AA05 BB01 CC07 DD01 DD15                       EE01 FF02 GG06 KK01 LL07

Claims (8)

[Claims] 1. A call connection control method, wherein a plurality of call processing processors for controlling call connection are provided, and each call processing processor controls connection of a call channel to a switching network in a switching system. When a notification of acquisition of a call channel to be accommodated in the exchange network is accepted via
Inquiries are made to the means for managing the accommodation position information of the call channel in the exchange network in units of call processors, and the call processor controls the connection of the call channel based on the obtained accommodation position information. Connection control method for incoming calls. 2. A method of accommodating a voice processing device, wherein a voice processing device connected to a base station modulation / demodulation device is accommodated in a switching network in a switching system by a communication channel, wherein the base station modulation / demodulation device connected to a mobile device is an idle call. A call channel accommodating the voice processing device is allocated from the channels, and the allocated call channel is notified to the call processor accommodating the base station controller via the control channel, and the call processor is When the call channel allocated by the base station modulator / demodulator is accommodated by another call processor, the accommodation position information of the call channel in the exchange network is transmitted to the other call processor by inter-processor communication. Acquiring and controlling connection based on the accommodation position information Good way. 3. A method for accommodating an interoffice line for accommodating an interoffice line from another exchange in an exchange network in the exchange, wherein an idle interoffice line is allocated to the exchange according to a call generated by the other exchange, The assigned inter-station line is notified via the control channel, and the accommodation position information is acquired from the means for managing the accommodation position information of the notified inter-station line in the exchange network in units of call processors, and the station concerned is acquired. A method of accommodating an interoffice line, characterized in that a call processor accommodating the interline line controls connection of the interoffice line to the exchange network. 4. A plurality of call processing processors for controlling call connection, wherein each of the call processing processors performs connection processing based on accommodation position information in the exchange network in the exchange that has acquired the notified call channel. In the mobile communication exchange equipped with a means for performing, the resource management means for managing the accommodation position information of the call channel in the switch network in units of the call processor, the call processor to the switch network of the notified call channel And a means for executing connection control to the exchange network by acquiring accommodation location information of the exchange from the resource management means. 5. A mobile communication exchange containing a plurality of base stations, wherein the mobile communication exchange contains a plurality of call processing processors each containing a corresponding base station control device and performing call connection control. A voice processing device that accommodates a plurality of corresponding base station modulation / demodulation devices and performs voice processing, wherein the base station modulation / demodulation device can assign a call channel to different voice processing devices, and the call processing processor When the base station modulator / demodulator of the base station controlled by the base station controller accommodated by the call processor allocates a speech channel to the voice processor under the control of the base station controller accommodated by another call processor, The other call processor is inquired about the accommodation position information of the assigned call channel in the exchange network through inter-processor communication. A mobile communication switching system comprising connection control means for connecting a call channel based on the acquired accommodation position information. 6. A mobile communication exchange comprising a plurality of call processing processors for performing call connection control for connecting an assigned inter-office line to an exchange network in an exchange, wherein accommodating position information of the inter-office line to the exchange network is provided. A resource management means for managing the call processor unit, and a means for inquiring the resource management means about the accommodation position information of the allocated inter-station line notified from the other exchange; and the inter-station line obtained by the inquiring means. And a means for controlling a call processor for controlling connection of a call based on the accommodation position information of the call processor. 7. When installed in a mobile telecommunication switch having a plurality of processors, the processor operates as a call processor for controlling connection of a call channel, and the call processor is activated via a control channel. When a notification of a call channel for accommodating the processing device in the exchange network is accepted, and when the call channel is accommodated in another call processor, the call processor is not connected to the other call processor. A program that operates as a call processor that inquires about accommodation position information of the call channel in the exchange network through communication, and controls connection of the voice processing device based on the obtained accommodation position information. 8. A switch for a notified inter-station line, which is installed in a mobile communication switch having a plurality of processors to operate the processor as a call processing processor for controlling connection between assigned inter-station lines. A call processor for performing connection control of the interoffice line notified based on the information of the resource managing means for managing the accommodation position information of the exchange network in the call processor unit is notified by the call processor. A program that operates as a call processor that controls connection between interoffice lines.