JP3825226B2 - File update method in exchange - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
[0002]
The present invention relates to a file update method in an exchange such as a subscriber exchange or a relay exchange used in a mobile communication system, and more specifically, a plurality of call control processing devices that perform line connection control, and a duplexed exchange service. The present invention relates to a file update method in an exchange having a first system and a second system for storing and processing necessary information.
[Prior art]
[0003]
For example, in exchanges such as subscriber exchanges and relay exchanges used in mobile communication systems, the contents of files in each storage device and signal processing device are updated to the changed contents by changing service contents or changing maintenance information. There is a need to.
[0004]
Conventionally, the file update in this exchange is performed as shown in FIG. 4, for example.
[0005]
As described above, in an exchange that requires file update, each storage device and signal processing device for storing and processing information necessary for the exchange service are usually duplicated from the viewpoint of ensuring the reliability of the exchange service. For example, as shown in FIG. 4, the exchange includes a plurality of call control processing devices (MCP and CNP) that perform call connection control, and file storage devices FM00 and FM10 that are duplicated in the 0-system and the 1-system. Storage devices CM0 and CM1 and a signal processing device SGP are provided. The plurality of call control processing devices include a single main call control processing device MCP that performs general control of the plurality of call control processing devices together with normal call control and one or more call controls that perform normal call control. It is comprised from the processing apparatus CNP.
[0006]
In an exchange having such a structure, when a file is updated, the contents are updated at the end of the file update preparation period (S0) in which the internal state is adjusted in preparation for file update while performing a normal exchange service. A new file is stored in, for example, the 1-system file storage device FM10. Thereafter, in the file update period (S11), the exchange service is interrupted, and, for example, the line during a call and a call is disconnected. In this state, a new file stored in the 1-system file storage device FM10 is transferred to the main call control processing device MCP, the call control processing device CNP, the 1-system common storage device CM1, and the 1-system signal processing device SGP. Transferred. Further, during this period (S11), detailed data such as billing information of each subscriber stored in the 0-system file storage device FM00 during the exchange service is taken over by the 1-system file storage device FM10, and the disconnected state is established. The initial setting for the accommodated line is made.
[0007]
As described above, when the new file is transferred to the main call control processing device MCP, the call control processing device CNP, the 1-system common storage device CM1, and the 1-system signal processing device, the one-system operation period (S12). ) Is started. In this one-system operation period (S12), the 1-system file storage device FM10, the 1-system common storage device CM1, and the 1-system signal processing device SGP are in operation, and the main call control processing device MCP and the call control device CNP. Is used to perform an exchange service based on the contents of the new file. The exchange service during this one-system operation period (S12) is started, for example, from a state in which all lines are vacant. During this one-system operation period (S12), the 0-system common storage device CM0 and the 0-system signal processing device SGP can immediately take over the processing in the 1-system common storage device CM1 and the 1-system signal processing device SGP. Processing for setting (hot standby state) is performed.
[0008]
When the process in the one-system operation period (S12) is completed, a normal exchange service based on the contents of the new file is performed (S2).
[Problems to be solved by the invention]
[0009]
In the file update method in the exchange as described above, during the file update period (S11), many devices necessary for the exchange service, that is, all call control processing devices (MCP, CNP), one common storage device CM1. Since a new file is transferred to the 1-system signal processing device SGP, the processing time is relatively long. As a result, the time for interrupting the exchange service becomes relatively long (for example, about 5 minutes).
[0010]
For this reason, conventionally, the file update operation in the exchange is performed at midnight so as to minimize the service degradation for the subscriber.
[0011]
SUMMARY OF THE INVENTION An object of the present invention is to provide a file update method capable of minimizing the time for interrupting an exchange service for file update and minimizing service degradation for subscribers when interrupting the exchange service. It is.
[Means for Solving the Problems]
[0012]
In order to solve the above-described problem , according to one aspect of the present invention, a first including a plurality of call control processing devices that perform line connection control and a device that stores and processes information necessary for an exchange service by duplication. In a file update method in an exchange comprising the above system and the second system, the first system is put into an operating state and an exchange service is performed using the remaining call control processing devices excluding at least one call control processing device. Meanwhile, in a state where the new procedure previously stored in the predetermined storage device, the first procedure for transferring the call control processing device to the removed device, each device of the second system, and the exchange service are interrupted, After the second procedure for transferring the new file stored in the predetermined storage device to the call control processing device to which the file is not transferred, and the processing in the second procedure, the second procedure And a third procedure for setting the first system in a state in which the first system can immediately take over the processing in the second system while performing the switching service using the plurality of call control processing devices. Configured.
[0013]
According to the file update method in such an exchange, a new file is transferred from a predetermined storage device to each device of the second system and at least one call control processing device while performing an exchange service. The exchange service during this period is performed using the remaining call control processing devices except for the at least one call control processing device while bringing the first system into operation.
[0014]
Next, in a state where the exchange service is interrupted, the file stored in the predetermined storage device is transferred to the call control processing device in which the file is not transferred. As a result, each device in the second system and the plurality of call control processing devices are in a state of acquiring a new file.
[0015]
Further, the second system having the new file is put into operation, and the exchange service is performed using the plurality of call control processing devices that have acquired the new file. Is immediately ready to take over the processing in the second system.
[0016]
According to the file update method in such an exchange, a new file is transferred from a predetermined storage device to each device of the second system and at least one call control processing device while performing an exchange service. In the second procedure performed by interrupting the service, it is only necessary to transfer a new file to the remaining call control processing devices.
[0017]
Also, when the exchange service is interrupted and the second procedure is performed, at least one call control processing device and each device of the second system have already finished acquiring new files and can operate. It becomes a state. Therefore, even if the switching service is interrupted, the line state before the switching service is interrupted can be managed by using the operable call control processing device and the devices necessary for the second system.
[0018]
Each of the first system and the second system includes an apparatus for storing and processing information necessary for the exchange service, and the configuration thereof is not particularly limited.
[0019]
In the first procedure, the number of call control processing devices to which a new file is to be transferred is not all of the plurality of call control processing devices, but may be at least one excluding the number used for the exchange service.
[0020]
From the viewpoint of simplifying the configuration of the exchange where the file update is performed , according to one aspect of the present invention , in the file update method, the predetermined storage device in which a new file is stored in advance is the second system. The new storage device can be configured to transfer a new file from the storage device of the second system to each device of the second system and the call control processing device.
[0021]
From the viewpoint that billing information related to call control can be transferred to an external system as soon as possible after file update is completed , according to one aspect of the present invention, the third procedure is performed in the exchange update method. In this case, it is configured to have a procedure for transferring detailed data related to the call connection stored in the storage device of the first system during the exchange service before the second procedure to the external system in a lump. The detailed data is data generated for a call connection and includes billing information.
[0022]
From the viewpoint of allowing the second system to take over the line state in the switching service that is performed while the first system is in operation , according to one aspect of the present invention , In each of the file update methods, the processing in the first procedure stored in the first common storage device for storing the line state in the first system is performed in a state where the exchange service is interrupted. And a procedure for taking over at least part of the information indicating the line state in the exchange service between the first common storage device and the second common storage device for storing the line state in the second system. Can do.
[0023]
From the viewpoint that the line state can be managed so that the generated call can be immediately connected when the interruption of the exchange service is released , according to one aspect of the present invention , the file update method represents the line state. The information to be taken over as at least a part of the information can be configured to include information indicating a free state.
[0024]
In such a file update method in the exchange, the information indicating the line availability is transferred to the second common storage device in the second system when the exchange service is interrupted, so that the interruption of the exchange service is released. In the process of the second system started at this time, it is possible to manage a free line that can be used to connect a new call.
[0025]
In the file update method, from the viewpoint that the remaining information indicating the line state can be quickly taken over , according to one aspect of the present invention, the first system can be used when performing the third procedure. The other part of the information indicating the line state in the switching service while the processing in the first procedure stored in the first common storage device is being performed is transferred from the first common storage device to the second The system is configured to have a procedure to take over to the second common storage device in the system.
[0026]
From the standpoint that when the line during a call is maintained while the exchange service is interrupted, the state can be quickly taken over. According to one aspect of the present invention , in the file update method, the line state is represented. The information to be taken over as another part of the information can be configured to include information indicating a state during a call.
[0027]
Furthermore, when maintaining the line calling in exchange service interruptions as described above, in view of being able to use that line to a new call, according to an embodiment of the present invention, in the file update method, When taking over the other part of the information representing the line status from the first common storage device in the first system to the second common storage device in the second system, the line being called is disconnected. The line state can be taken over as a free state.
DETAILED DESCRIPTION OF THE INVENTION
[0028]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0029]
An exchange that performs file update according to the file update method according to the embodiment of the present invention is configured as shown in FIG. 1, for example.
[0030]
In FIG. 1, an exchange 100 has a system for storing and processing information necessary for an exchange service, and this system is duplexed into a 0 system and a 1 system. The 0 system includes a first nonvolatile storage device 110 (FM00), a first common storage device 130 (CM0), and a first signal processing device 140 (SGP0). A second storage device 111 (FM10), a second common storage device 131 (CM1), and a second signal processing device 141 (SGP1).
[0031]
Each of the first and second nonvolatile storage devices 110 and 111 stores detailed data related to call connection such as billing information and information necessary for the exchange process. Each of the first and second common storage devices 130 and 131 stores a line state in the exchange 100. Each of the first and second signal processing devices 140 and 141 processes signals necessary for the exchange service.
[0032]
The exchange 100 further includes a plurality of call control processing devices that perform line connection control, and one of the plurality of call control processing devices serves as a main call control processing device 120a (MCP) for another call control. It is distinguished from the processing device 120. The main call control processing device 120 a performs line connection control and performs overall control of other call control processing devices 120.
[0033]
The exchange 100 also includes an information transfer processing device 150 (TCE). The information transfer device 150 transfers detailed data such as billing information to the external fee system 300.
[0034]
The exchange 100 configured as described above is connected to a predetermined network 200 and performs an exchange service in a communication system (such as a mobile communication system or a telephone communication system) in which the exchange 100 is provided.
[0035]
When updating the files of the 0-system and 1-system devices due to changes in service contents for subscribers, changes in maintenance information, etc., for example, the processing is executed according to the procedure shown in FIG.
[0036]
In FIG. 2, in the file update preparation period (S0), adjustment of the internal state and the like are performed for preparation of file update while performing a normal exchange service. When this file update preparation period (S0) ends, the first one-system operation period (S10) is started. In the first one-system operation period (S10), the first non-volatile storage device 110, the first common storage device 130, and the first signal processing device 140, which are the 0-system, are put into operation and a plurality of calls are made. While performing the exchange service using the control processing devices (the main call control processing device 120a and the call control processing device 120), the new file is forwarded.
[0037]
In this new file advance processing, first, a new file is loaded into the second non-volatile storage device 111 in the first system. Then, one of the call control processing devices 120 is assigned as a spare main call control processing device (spare MCP), and this spare main call control processing device 1, the second common storage device 131 (CM1) in the first system. A new file is transferred from the second nonvolatile storage device 111 (FM10) to the second signal processing device 141 (SGP1).
[0038]
In the first one-system operation period (S10), the line state (calling, calling, idle, etc.) is recorded in the first common storage device 130 (CM0) in the 0 system.
[0039]
As described above, in the first one-system operation period (S10), when the advance of the new file is completed, the file update period (S11) is started. In the file update period (S11), the first non-volatile storage device 110 (FM0) in the 0 system is set in a standby state, and the first common storage device 130 (CM0) and the first signal processing device 140 are set. (SGP0) is put into a standby state, and the exchange service is interrupted. In this case, the spare main call control processing device described above is assigned as a true main call control processing device 120a (MCP), and the main call control processing device described above is the same as other call control processing devices. Assigned to the call control processing layer device. As described above, the second non-volatile storage device 111 (with respect to the remaining call control processing devices (CNP) excluding the call control processing device newly assigned to the main call control processing device 120 a (MCP) ( A new file is transferred from FM10).
[0040]
In the file update period (S11), the first common storage device 131 (CM1), the first signal processing device 141 (SPG1), and the main call control processing device 120a (MCP) in the first system are in an operable state. Even if the line state at the time of switching from the first one-system operation period (S10) to the file update period (S11) is maintained, the line state can be managed. However, no new call is accepted during this period (S11).
[0041]
The line status (calling, calling, empty) in the exchange 100 when the first single system operation period (S10) is switched to the file update period (S11) is the first common storage device in the 0 system. 130 (CM0). Then, during this file update period (S11), as shown in FIG. 3, among the line states, the free line state is changed from the first common storage device 130 (CM0) in the 0 system to the second in the 1 system. To the common storage device 131 (CM1).
[0042]
In this way, the file that interrupts this exchange service by taking over the free line state to the second common storage device 131 (CM1) in the first system prior to the other state (communication, ringing). When the update period (S11) ends, a new call can be immediately connected.
[0043]
When the processing in the file update period (S11) is completed as described above, each device of the first system (second common storage device 131 (CM1), second signal processing device 141 (SPG1)) and each call control Each of the processing apparatuses 120a and 120 (MPC and CNP) acquires a new file. In this state, each device of the first system (second non-volatile storage device 111 (FM10), second common storage device 131 (CM1), second signal processing device 141 (SGP1)) is in an operating state. Then, an exchange service is started using the main call control processing device 120a (MCP) and the call control processing device 120 (CNP). This exchange service is based on the contents of the new file. In the second one-system operation period (S12) in which each device of system 1 is put into operation and the exchange service is performed, as shown in FIG. 3, it is stored in the first common storage device 130 (CM0) in system 0. The state of the line during the call is taken over by the second common storage device 131 (CM1) in the first system. In addition, the ringing line is disconnected and the state of the line is stored in the second common storage device 131 (CM1) as an empty state.
[0044]
In the second one-system operation period (S12), as described above, while the replacement service is performed with the devices in the system 1 operating, the devices in the system 0 (the first common storage device 130 ( CM0) and the first signal processing device (SGP0)) are processed to immediately take over the processing in each system 1 device (hot standby state). This process is performed according to a so-called standard system configuration method for establishing a hot standby state and an operating state in a two-system system using an INS (In Service) command for controlling the exchange. Further, detailed information regarding call connection such as billing information stored in the non-volatile storage device 110 (FM00) in the 0 system before the file update period (S11) is transferred to the information transfer device 150 (TCE). The information transfer processing device 150 (TCE) transfers the detailed data to the external fee system 300 at a predetermined timing.
[0045]
As described above, the line state is taken over by the second common storage device 131 (CM1) in the 1 system, each device in the 0 system is set in the hot standby state, and the detailed data is transferred to the information transfer processing device 150 ( When transferred to TCE), the second one-system operation period (S12) ends. Thereafter, a normal exchange service based on the contents of the new file is performed with the duplexed system configuration of system 0 and system 1 (S2).
[0046]
According to the above-described example, since a new file is transferred to each device in the first system and the spare main call control processing device in the first one-system operation period (S10), the file update period (S11) ) In which the exchange service is interrupted can be made relatively short. For example, in the conventional file update method (see FIG. 4), the interruption time of the exchange service is about 5 minutes, but when the file update method as described above is followed, the interruption time of the exchange service is about 1 Now it takes just a minute.
[0047]
In addition, during the file update period (S11), the state of the line during a call or ringing is maintained, so that the service degradation for the subscriber when the exchange service is interrupted is minimized. Can do.
[0048]
As a result of the above, it is possible to perform a file update operation that has been conventionally performed at midnight even during the daytime when communication traffic is relatively high, and the burden on the worker can be reduced.
[0049]
Further, after the file update ends (after the end of the file update period (S11)), the detailed data is transferred in a batch from the nonvolatile storage device 110 (FM00) in the 0 system to the information transfer processing device 150 (TCE). Therefore, detailed data can be efficiently transferred from the information transfer processing device 150 (TCE) to the external fee system 300.
[0050]
In the above embodiment, part of the processing in the first one-system operation period (S10) shown in FIG. 2 corresponds to the first procedure, and part of the processing in the file update period (S11) is the second. Corresponding to the procedure, a part of the processing in the second single system operation period (S12) corresponds to the third procedure.
【The invention's effect】
[0051]
As described above, according to one aspect of the present invention , a new file is transferred to each device of the second system and at least one call control processing device while performing the exchange service, and the exchange service is interrupted. Since it is only necessary to transfer a new file to the remaining call control processing devices, the time for interrupting the exchange service for updating the file can be made as short as possible. Further, during the interruption of the exchange service, since at least one call control processing device and the second system are in an operable state, the operable call control processing device and the necessary devices in the second system are installed. It is possible to manage the line state by using. As a result, it is possible to maintain at least the state of the line that was busy before the exchange service was interrupted. Accordingly, it is possible to minimize the service degradation for the subscriber when the exchange service is interrupted.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration example of an exchange in which a file is updated according to a file updating method according to an embodiment of the present invention.
FIG. 2 is a diagram showing a file update method according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating an example of line state takeover.
FIG. 4 is a diagram illustrating an example of a conventional file update method.
[Explanation of symbols]
100 switch 110 first non-volatile storage device (FM00)
111 Second non-volatile storage device (FM10)
120a Master call control processor (MCP)
120 Call control processor (CNP)
130 First common storage device (CM0)
131 Second common storage device (CM1)
140 First signal processor (SGP0)
141 Second signal processing device (SGP1)
150 Information transfer processing device 200 Network 300 Fee system

Claims (7)

File update method in an exchange comprising a plurality of call control processing devices that perform line connection control, and a first system and a second system that include a device for storing and processing information required for exchange service in a duplex manner In
While the first system is put into operation and the exchange service is performed using the remaining call control processing devices except for at least one call control processing device, a new file stored in advance in a predetermined storage device is removed. A call control processing device, a first procedure to transfer to each device of the second system,
A second procedure for transferring a new file stored in the predetermined storage device to the call control processing device to which the file has not been transferred in a state where the exchange service is interrupted;
After the processing in the second procedure, the second system is put into operation and the switching service is performed using the plurality of call control processing devices. And a third procedure for making the process ready to take over immediately,
When performing the third procedure, to transfer the detailed data related to the call connection stored in the storage device in the first system during the exchange service before the second procedure to the external system File update method in an exchange having a procedure of transferring to the information transfer processing device of the present invention. In the file update method in the exchange according to claim 1,
The predetermined storage device in which a new file is stored in advance is the storage device of the second system, and the new file is transferred from the storage device of the second system to each device of the second system and the call control process. A file update method in an exchange which is transferred to a device. In the file update method in the exchange according to claim 1 or 2 ,
The line status in the switching service while the processing in the first procedure stored in the first common storage device for storing the line status in the first system is being performed with the switching service interrupted A file update method in an exchange having a procedure for taking over at least a part of information representing the information from the first common storage device to the second common storage device for storing the line state in the second system. In the file update method in the exchange according to claim 3 ,
The file update method in an exchange in which the information to be taken over, which is at least part of the information indicating the line state, includes information indicating a free state. In the file update method in the exchange according to claim 3 or 4 ,
When performing the third procedure, the line status in the exchange service while the processing in the first procedure stored in the first common storage device in the first system is being performed is represented. A file update method in an exchange having a procedure for transferring another part of information from the first common storage device to the second common storage device in the second system. In the file update method in the exchange according to claim 5 ,
The information to be taken over as another part of the information indicating the line state is a file update method in an exchange including information indicating a busy state. In the file update method in the exchange according to claim 5 or 6 ,
When taking over the other part of the information representing the line status from the first common storage device in the first system to the second common storage device in the second system, the line being called is disconnected. A file updating method in an exchange that takes over the state of the line as a free state.

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