JPH10224286A - Mobile communication system and method for updating system file of base station - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute file transfer efficiently in a short time in the case of updating system files of plural base stations. SOLUTION: At least one file transfer base station 10 is prepared to each block, where plural base stations are arranged and a system file is transmitted from a maintenance device 50 to respective file transfer base stations 10 via a stationary network 40. The file transfer base station 10 receiving the system file transfers sequentially the system file to other base stations 20, 20,... via the stationary network 40 at the respective blocks.

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 and a method of changing a system file of a base station thereof, and more particularly to, for example, a personal handyphone system (PHS).
The present invention relates to a mobile communication system suitable for use in a mobile communication system of a microcell system such as m) and a method of updating a system file of a base station thereof.

[0002]

2. Description of the Related Art In recent years, in mobile communication systems, portable terminals such as portable telephones and cordless telephones have been reduced in size and price, and the installation range and the number of these base stations have been gradually expanded. And its penetration rate is growing significantly. In particular, in a simple mobile phone system of the marcro cell system in which base stations are installed at intervals of about 100 m, the number of base stations is enormous. When a change in the service or function realized by the program or data occurs in such a base station,
It is necessary to change the system file of the base station. For example, in PHS, in addition to voice calls, if services that handle data transmission at various speeds are added,
Processing to identify them, processing to change the data transmission speed according to the portable information device as needed, and the like must be added.

Conventionally, a mobile communication system as described above includes a plurality of base stations each having a predetermined communication area, a switching facility such as a base station control station for accommodating these base stations via a wired line, and a portable communication system. It includes a service control station storing identification numbers of mobile terminals such as telephones. further,
In a service control station or the like, a maintenance device for controlling and maintaining the system is connected.

In such a mobile communication system, when a system file of a base station is changed, a communication line is connected to each base station from a maintenance device housed in a fixed network communicable with the base station. The operation of connecting, transferring a new system file from the maintenance device, and updating is repeated for all the base stations.

More specifically, first, when transferring a system file, a path connection of a communication line is performed between the maintenance device and the base station to be updated via a fixed network. in this case,
The path connection can be made from any of the maintenance device and the file update target base station.

Next, a new system file is transferred from the maintenance device to the base station to be updated. When the transfer of the system file is completed, the path of the communication line between the maintenance device and the base station to be updated is disconnected. Do. The base station that has received the system file shifts to a system file update process.

When the transmission of the system file to one base station is completed, the maintenance device makes a path connection to the other base station to be updated via the fixed network in the same manner as described above, and performs the system file transfer processing. Is repeated for each file update target base station.

[0008]

However, in the above-mentioned prior art, the operation of transferring a system file after connecting a communication line path between a maintenance device and a base station via a fixed network is performed. Since it is necessary to perform the operation with all the base stations to be updated, it takes a lot of time, and as the number of base stations increases, the time spent for system file transfer increases, and implementation is extremely difficult. Has become a problem that has become more difficult.

Therefore, for example, a plurality of maintenance devices are additionally connected to the fixed network to reduce the load on each maintenance device, or a plurality of line facilities are added between the maintenance device and the fixed network. It is conceivable to reduce the file transfer time. However, in reality, there is a problem in that adding a maintenance device that is not usually used very much or increasing line equipment that is not used wastes equipment.

That is, in the above-mentioned conventional technique, the number of repetitions of the system file transfer increases as the number of line facilities between the maintenance device and the base station decreases, and it takes time to update the system file. However, there is a problem that the total transfer time is limited by the number of line facilities connected to the maintenance device and the simultaneous processing capability of the maintenance device for data transfer.

The present invention solves such disadvantages of the prior art, can reduce the load on the maintenance device without increasing the number of maintenance devices and line facilities, and can efficiently change the system file of the base station. It is an object of the present invention to provide a mobile communication system and a method of updating a system file in a base station thereof.

[0012]

According to the present invention, a plurality of base stations connected to a fixed network via a wired line connect a mobile station located in each communication area to a wireless line. In a mobile communication system accommodated via a base station, the base station includes a maintenance device connected to a fixed network and transmitting a system file to the base station via the fixed network when data or a program is changed at the base station. Receiving the system file from the maintenance device via the fixed network,
It is characterized by including a file transfer base station that rewrites its own system file and transfers the received system file to another base station via a fixed network.

In this case, at least one file transfer base station is provided for each block including a plurality of base stations, and the maintenance device sequentially passes the file transfer base stations to the respective file transfer base stations via the fixed network. It is preferable to connect and transfer the system file for each block.

Further, in the base station, all base stations are formed as file transfer base stations, and the maintenance device is provided for each block including a plurality of base stations via one of the base stations and a fixed network. A system file may be transferred for each block by sequentially connecting paths.

In these cases, each base station includes a line control unit for controlling a wired line connected to a fixed network, and a file receiving unit for receiving a system file from a maintenance device via the line control unit. And a file management means for sequentially storing system files from the file receiving means and managing the files, and further comprising: a file transfer base station for managing a file transfer list indicating a transfer destination of the system file. Means, file transfer control means for transferring the system file received by the file receiving means, and file transmission means for transmitting the system file from the file transfer control means based on the file transfer list of the file transfer destination management means. It is advantageous to include

Further, the file transfer destination managing means sequentially accumulates the file transfer list transmitted together with the system file from the maintenance device via the file receiving means, and stores the file transfer destination in the file transmitting means based on the file transfer list. Should be indicated.

Further, the file transfer destination management means stores in advance a file transfer destination list including addresses or identification numbers of a plurality of other base stations in the block of the own station.
It is preferable to instruct the file transmitting means on the file transfer destination list based on the file transfer destination list.

A mobile communication system according to the present invention is a mobile communication system in which a plurality of base stations connected to a fixed network via a wired line accommodate mobile stations located in respective communication areas via a wireless line. The system includes a maintenance device connected to the fixed network and transmitting a system file to each switching facility accommodating the fixed network base station when data or a program is changed at the base station. The facility is characterized in that it has a system file transmission processing function of sequentially accumulating system files from the maintenance device and transmitting the system files to the accommodated base stations in addition to the call processing exchange function for the base station.

In this case, the switching equipment includes line control means for controlling a wired line between the maintenance device and the base station to be accommodated, and file receiving means for receiving a system file from the maintenance device via the line control means. File management means for storing a system file from a file reception means, file transfer destination management means for managing a file transfer list indicating a transfer destination of a system file, and a file for transferring a system file received by the file reception means It is advantageous to include a transfer control unit and a file transmission unit that transmits a system file from the file transfer control unit based on a file transfer list of the file transfer destination management unit.

Further, the file transfer destination management means sequentially accumulates the file transfer list transmitted together with the system file from the maintenance device via the file receiving means, and stores the file transfer destination in the file transmission means based on the file transfer list. Should be indicated.

Further, the file transfer destination management means accumulates a file transfer destination list including addresses or identification numbers of a plurality of other base stations in the block of the own station in advance,
It is preferable to instruct the file transmitting means on the file transfer destination list based on the file transfer destination list.

On the other hand, a plurality of base stations accommodating a mobile station via a wireless line are connected via a wired line to a fixed network including a maintenance device, and data of each base station is stored in a system file from the maintenance device. Alternatively, in a method of updating a system file of a base station in a mobile communication system for updating a program, in addition to a function of performing a system file reception process and a system file update process on some base stations in advance, a system file update function of a maintenance device is provided. A step of preparing system file transfer processing means including a function similar to the function of transmitting a system file at the time of connection, connecting a path between some base stations and the maintenance device via a fixed network, and establishing a fixed network from the maintenance device. Transmitting a system file for updating to each of some base stations sequentially via
Connecting the base station that has received the system file to a plurality of other base stations via a fixed network, and sequentially transferring the system file to the other plurality of base stations.

In this case, when transmitting the system file from the maintenance device to some base stations, the method includes a step of transmitting a file transfer destination list indicating transfer destinations from the base station to a plurality of other base stations, Some base stations that have received the system file from the maintenance device may sequentially transfer the system file to a plurality of other base stations based on the file transfer destination list received at that time.

Also, the method includes a step of storing in advance a file transfer destination list including addresses or identification numbers of a plurality of other base stations when transferring a system file to some of the base stations. When the base station receives the update system file from the maintenance device, it is advantageous to sequentially transfer the received system file to another plurality of base stations based on the file transfer destination list stored in advance.

Further, a plurality of base stations accommodating the mobile station via a wireless line are connected to a fixed network including a maintenance device via a wired line, and the data of each base station is stored in a system file from the maintenance device. Alternatively, in a method of updating a system file of a base station in a mobile communication system for updating a program, in addition to a function of performing a system file reception process and a system update process on all base stations in advance, a method for updating a system file of a maintenance device is provided. Providing system file transfer processing means including a function similar to the system file transmission function, and connecting a path between any one of the base stations and the maintenance device via a fixed network to a maintenance device. Transmitting the update system file to the base station in sequence from the Transmitting a system file from the received base station to the next transfer destination base station via a fixed network and transferring the system file, and thereafter, from the base station receiving the system file to another base station via the fixed network. Performing a path connection and repeatedly transferring the system file from base station to base station in sequence.

In this case, when transmitting the system file from the maintenance device to any of the base stations, transmitting a file transfer destination list indicating a transfer destination of the system file, and transferring the system file from the base station to the base station Transferring the file transfer destination list to the next base station, when each base station receives the system file, deletes its own address or identification number from the file transfer destination list. It is preferable to transfer the deleted file transfer list together with the system file to the next base station.

[0027] The method further includes the step of storing in advance in each base station the address or identification number of the next base station to which the system file is to be transferred, and when each base station receives the system file, The received system file may be transferred to the next base station according to the stored address or identification number.

Further, a plurality of base stations accommodating the mobile station via a wireless line are connected to a fixed network including a maintenance device via a wired line, and the data of each base station is stored in a system file from the maintenance device. Alternatively, in a system file updating method of a base station in a mobile communication system for updating a program, a switching facility for accommodating a base station is provided with a system file transmission processing function for an accommodation base station in addition to a call processing exchange function for the base station. And a step of transferring a system file from the maintenance device to the switching facility, and a step of sequentially connecting paths from the switching facility to respective base stations to transfer the system file.

In this case, when transmitting the system file from the maintenance device, the method includes a step of transmitting a file transfer destination list indicating a file transfer destination to the exchange facility.
The system file may be transmitted to each base station based on the received file transfer destination list.

The method further includes the step of storing in advance in the exchange facility a file transfer destination list indicating a file transfer destination when a system file is transmitted from the maintenance device,
The switching facility may transmit a system file to each base station based on a file transfer destination list stored in advance.

[0031]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a mobile communication system and a method of updating a system file of a base station according to the present invention; FIG. 1 shows a first embodiment of a mobile communication system to which a system file updating method according to the present invention is applied.

The mobile communication system according to the present embodiment includes a plurality of base stations accommodating a portable terminal such as a cordless terminal for each service area.
l A mobile communication system of the microcell type such as a handyphone system) .When a service or a function is changed at the base station, a system file from a maintenance device connected to a fixed network such as a digital network is used. This is a mobile communication system capable of effectively changing the program or data of the base station. In particular, in the present embodiment, at least one file transfer base station including a file transfer function similar to that of the maintenance device is arranged for each block including a predetermined number of base stations, and the same file transfer base station is provided from the same file transfer base station. The major feature is that the system file from the maintenance device can be freely transferred to another base station of the block.

More specifically, as shown in FIG. 1, the mobile communication system according to the present embodiment includes a plurality of base stations 10, 20, 20,...
, Including a fixed network 40 including 30 and a maintenance device 50 disposed in a service control station or the like, and the base stations 10, 20, 20,... A block is formed for each service area, and one file transfer base station 10 is included in each block. The file transfer base station 10 is a transfer device equipped with a file transfer function similar to the maintenance device 50 in a normal base station, and forms a predetermined wireless zone in each service area similarly to a normal base station. It is a fixed station that can communicate with a plurality of mobile stations existing within it.

The basic configuration of the base stations 10, 20, 20,...
2, a wired line 100 from the switching equipment 30 of the fixed network 40 is connected to a line control circuit 110. The line control circuit 110 of the present embodiment is, for example, an ISDN (integrated services
A control circuit that conforms to the I interface for controlling a user network interface of a digital network.
Are supplied to the control bus 130. In the case of the present embodiment, the system file for updating from the maintenance device 50 is stored in the control bus 130 together with the maintenance signal H.
Are supplied sequentially.

The voice processing circuit 120 is a circuit for digitally processing a signal of a communication channel by a predetermined coding and decoding method. For example, a coding method such as ADPCM (Adaptive Differential Pulse Code Modulation) is effectively applied. ing. The digitally processed communication channel signals are sequentially supplied to a TDMA (Time Division Multiple Access) processing circuit 140. The TDMA processing circuit 140 is a digital processing circuit that time-division multiplexes signals of a plurality of channels, for example, three channels, and alternately processes transmission and reception. Signals of transmission channels are sequentially supplied to the modulation circuit 150. The modulation circuit 150 is a modulation circuit that modulates the time-division multiplexed signal on a different frequency channel for each channel.
0 is sequentially supplied.

The high-frequency circuit 160 forms a signal of the transmission channel from the modulation circuit 150 as a high-frequency signal, and
This is a radio transmitting / receiving circuit which transmits the signal via the antenna 170, receives the high frequency signal from the mobile station arriving at the antenna 170, and sequentially supplies the signal of the receiving channel to the demodulation circuit 180. The demodulation circuit 180 is a circuit for demodulating the signal of the receiving channel on a predetermined frequency channel to reproduce a baseband signal, and the demodulated signal of each channel is supplied to the TDMA processing circuit 140. The monitoring circuit 190 is a high-frequency circuit 16
0 is a quality control circuit that monitors the signal received and detects interference from nearby base stations. The result is supplied to the control processor 200 via the control bus 130.

The control bus 130 is provided with a control processor 200 for controlling the above components, and an EEPROM (electrically erasable and programmable) storing the control program and various data.
(ogrammable read-only memory) 210 and flash EE
A PROM (EEPROM that can be erased in batch) 220 is connected. In the case of the present embodiment, the update system file supplied via the line control circuit 110 is a flash EEPROM 2
20 sequentially stored in the system file EEPROM
The control program and various data in the predetermined area 210 are sequentially rewritten, and the file is updated.

FIG. 3 is a functional block diagram of a file update process of the control processor 200 in a normal base station 20 other than the file transfer base station 10. In this figure, a line control unit 300 is a functional unit for controlling the line control circuit 110 and taking in a system file transferred via the switching equipment 40 into its own device. When the address of the own device is detected, the wired line 100 and the control bus 130 are connected, and the transferred system files are sequentially taken into the own device. The file receiving unit 310 is a functional unit that sequentially receives and processes system files from the control bus 130, and sequentially writes the received system files into the flash EEPROM 220. The file management unit 320 is a functional unit that manages system files stored in the EEPROM 210, and uses a flash EEPROM when updating.
Read the system file stored in the OM 220
A process for sequentially updating the PROM 210 is executed.

FIG. 4 is a functional block diagram of the file update process and the file transfer process of the control processor 200 in the file transfer base station 10. In this figure, the same parts as those in FIG. 3 are denoted by the same reference numerals, and detailed description thereof will be omitted. The file transfer destination management unit 320 is a functional unit that manages a file transfer list indicating the transfer destination of the system file. In the present embodiment, the flash unit stores the file stored together with the system file from the maintenance device 50 received by the file reception unit 310. The file transfer list of the EEPROM 220 is accessed as needed to search for a transfer destination. The file transfer control unit 330 is a function unit for transferring the system file received by the file receiving unit 310. The system file stored in the flash EEPROM 220 is sequentially read every time the file is transferred and supplied to the file transmitting unit 340. I do. The file transmission unit 340 is a file transfer control unit.
File transfer destination management unit 32
0 is a functional unit that performs transmission processing based on the file transfer list of 0, generates a transfer message for each file transfer,
The signal is transmitted to another base station 20 of the own block at any time via the line control unit 300.

Returning to FIG. 1, the fixed network 40 includes ISDN and PS
A common channel signal that includes an existing digital network such as TN (public switched telecommunication network) and that connects a mobile communication service control station to a switching facility 30 such as a local switch or a toll switch using a predetermined common channel signal system. Including net. The service control station includes a database for storing and managing subscriber numbers, location information, billing information, status, and the like of the mobile station, and is arranged for each region or each communication carrier. In particular, by including the service control station, the fixed network 40 is a logical network that flexibly controls the physical accommodation position and the like in the mobile station network, such as a tracking control service generated when the mobile station moves from one area to another. Offers a configurable intelligent network.

The switching equipment 30 includes a subscriber exchange for accommodating a subscriber line to which a telephone terminal or the like is connected, and a base station for accommodating the respective base stations 10, 20, 20,. Network equipment having a control device and performing a call connection between a mobile station and a general telephone terminal based on a database of a service control station. Although only one switching equipment is shown in the figure, a gateway exchange or a relay exchange between other communication networks is also connected, and a fixed network 40 including a mobile communication network and a general public network is connected. Has formed. The exchanges accommodating the base stations 10, 20, 20,... Of each block are shown as one exchange facility in the figure, but actually, a plurality of exchanges close to the respective service areas are provided. Each of the base stations 10, 20, 20,... Is accommodated.

The maintenance device 50 is a remote control device that is included in a remote control station such as a service control station and is connected to the fixed network 40. For example, the maintenance device 50 performs distributed control at the base stations 10, 20, 20,. Whether each base station 1 is running correctly or not
Are monitoring devices that monitor maintenance signals from 0, 20, 20,... To monitor the status of each base station 10, 20, 20,.
Also, the base stations 10, 20, 20,... Detect hardware failures and the like, and transmit their maintenance signals via the fixed network 40. In order to realize these functions, for example, a monitoring console and an input / output device are included. In this embodiment, in particular, a file transmission function and a file transfer for updating a system file in the base stations 10, 20, 20,. Includes a destination list generation function. The system file for update is supplied from a recording medium such as a flexible disk, and transmitted together with the file transfer list for each file transfer base station 10. The maintenance devices 50 are arranged for each region or each communication carrier, similarly to the service control station, and are extremely small in number with respect to the number of base stations 10, 20, 20,.

The operation of the mobile communication system according to this embodiment and the method of updating the system file of the base station will be described. First, the maintenance person in the maintenance device 50 transfers the file for each block. A destination list is generated, and system files for updating are sequentially read from a recording medium such as a flexible disk. When these processes are completed, the maintenance person selects the file transfer base station 10 of the block to be updated. For example, first, when the file transfer base station 10 of the first block is selected, the maintenance device 50 connects to the file transfer base station 10 of the first block via the fixed network 40. As a result, a line connection message is sent from the fixed network 40 to the file transfer base station 10 of the first block, and when the file transfer base station 10 responds to this message, the maintenance device 50 and the file transfer base station of the first block are sent. The line connection to the station 10 is performed.

At this time, in the file transfer base station 10, when the line control circuit 110 operates under the control of the line control unit 300 of the control processor 200 to complete the line connection, the line control unit 300 sends the file to the file receiving unit 310. To start receiving the file. Thereafter, when transfer of a new system file and a file transfer destination list from the maintenance device 50 to the file transfer base station 10 is started, the file receiving unit 310 transmits the transferred system file and file transfer destination list. And receive the file
It instructs 320 to save the system file, and instructs the file transfer destination management unit 330 to save the transfer destination base station list transferred from the maintenance device 50. As a result, the update system file and the file transfer list are stored in the flash EEPROM 220, respectively.

Next, when the reception of the system file and the transfer destination list from the maintenance device 50 are all completed normally,
The file receiving unit 310 is a maintenance device via the line control unit 300.
A file reception completion message is notified to 50, and the system file reception completion is reported to the file transfer control unit 340. Accordingly, in the fixed network 40, the path of the line between the maintenance device 50 and the file transfer base station 10 is disconnected, and the maintenance device 50 shifts to a file transmission operation to the next block, and the file transfer base station Step 10 shifts to system file update processing and transfer work.

First, the file transfer base station 10 having received the system file from the maintenance device 50,
A file update process from the flash EEPROM 220 to the EEPROM 210 is executed. At this time, when the update is completed without erasing the flash EEPROM 220 even when the file update is completed, the file transfer control unit 340 is activated to read the received system file from the flash EEPROM 220 and to manage the file transfer destination. It instructs unit 330 and file transmitting unit 350 to start transferring files.

Thus, the file transfer destination management section 330 searches for the first file transfer destination from the file transfer destination list, and instructs the file transmission section 360 of the search result.
Upon receiving the file transfer destination, the file transmitting unit 350 instructs the line control unit 300 to connect to the line, and generates and transmits a file transfer message. As a result, the line control unit 30
A line 0 is connected to the first file transfer destination base station 20 from the line control circuit 110 via the switching equipment 30.

When the line connection is completed and the line control unit 300 notifies the file transmission unit 350 of the completion of the line connection, the file transmission unit 350 receives the system file from the file transfer control unit 340, and It instructs the line controller 300 to transfer to the base station 20. Thereby, the line control circuit 11
From 0, the system file is transmitted to the first transfer destination base station 20 via the switching equipment 30. At this time, in the first transfer destination base station 20, the file receiving unit 310 performs the receiving process in the same manner as described above, and the system file for updating is sequentially stored in the flash EEPROM 220.

When the transfer destination base station 20 completes the reception of the system file, a file reception completion message is transmitted to the file transfer base station 10, and the line path is disconnected. After that, in the first transfer destination base station 20, the system file is read from the flash EEPROM 220 by the file management unit 320 and the updating process to the EEPROM 210 is executed in the same manner as described above. When the update of the system file is completed, the contents of the flash EEPROM 220 are erased collectively, and the base station 20 normally returns to the operation.

In the above-described embodiment, the system file is transferred from the flash EEPROM to the EEPROM with respect to the transfer. However, instead of this, system file 2
It may be composed of a flash EEPROM having a surface area and an EEPROM for managing the two areas. That is, the system file may be transferred between the two flash EEPROMs, and the area management of the two flash EEPROMs may be performed.

On the other hand, in the file transfer base station 10, when the transfer of the system file to the first transfer destination base station 20 is completed, the file transfer destination management section 330 transfers the file to the next base station. When the search of the destination list is executed again and the second transfer destination base station 20 is detected, the address is sent to the file transmitting section 350.

As a result, the file transmission unit 350 transmits the data to the second transfer destination base station 20 via the line control unit 300 in the same manner as described above.
A file transfer message is sent to the network and the line is connected via the switching equipment 30. When a line is connected to the second transfer destination base station 20, a file transfer control unit 340 is executed in the same manner as described above.
System file from the cable line 300 to the switching equipment 30
To the second transfer destination base station 20 via the. The second transfer destination base station 20, which has received the system file, transmits a reception completion message and updates the received file, similarly to the first transfer destination base station 20.

Hereinafter, similarly, the file transfer base station 10
The file transfer destination management unit 330 searches the file transfer destination list, and if the corresponding base station 20 exists, a system file for updating is exchanged with the base station 20, 20,. Are sequentially transferred through. As a result of the search, if there is no corresponding file, it is determined that the transfer of all system files in the block has been completed, and the transfer processing of the system file ends.

On the other hand, when the file transmission to the file transfer base station 10 of the first block is completed, the maintenance device 50 transmits the next block while the file is being transferred to another base station 20 in that block. The block is transmitted to the file transfer base station 10 in the same manner as described above. Also here, the file transfer base station 10 that has received the system file sequentially transfers the received system file to the other base stations 20, 20,... Based on the file transfer list as in the first block.

Similarly, the maintenance device 50 sequentially transmits the system files to the file transfer base stations 10 of all the blocks, and in each block, the file transfer base station 10 which has received the system file has its own block. Are transferred to the other base stations 20, 20,.... As a result, the base stations 20, 20,... That have received the system file in each block are flash EE under the control of the file management unit 330 in the same manner as described above.
Reads the system file stored in PROM 220 and performs EEPROM
Update to OM 210 and rewrite the program and data.

As described above, according to the mobile communication system and the base station file system updating method according to the present embodiment, a plurality of blocks for each service area including a plurality of base stations 10, 20, 20,. The file transfer base station 10 is arranged, the system file is sequentially transmitted from the maintenance device 50 to the file transfer base station 10 of each block, and each file transfer base station 10 transmits the other base station 20, 20 of each block. Because the system file is transferred to ...
Reduces the time required to transfer system files to each base station 10, 20, 20, ... without adding additional maintenance equipment 50 and without increasing the number of line equipment from the maintenance equipment 50 to the fixed network 40. can do. Specifically, the maintenance device 50
After transmitting the system file to the file transfer base station 10 of the first block from the storage device 50, while the system file is sequentially transferred from the maintenance device 50 to the file transfer base stations 10, 10,. , The system file is simultaneously transferred from the file transfer base station 10 to the other base stations 20, 20,. Similarly, in the second block, the file transfer process is executed concurrently with the maintenance device 50 with a delay of one from the first block, and the file transfer process is similarly executed in the other blocks.
Thereby, when the file transfer is performed to the n blocks, compared with the case where the system file is sequentially transmitted from the maintenance device 50 to all the base stations to update the file, the file is almost updated.
At the time of 1 / n, the file update of all base stations should be executed at the time of adding 1 / n to the number of base stations in the block, for example, at the time of 2 / n in the above embodiment. Can be. Also, since the load on the maintenance device 50 can be reduced,
Other maintenance functions can be executed at the same time without increasing the processing capacity of the maintenance device 50.

Next, FIG. 5 shows a second embodiment of the mobile communication system to which the file updating method according to the present invention is applied. In the above embodiment, one file transfer base station 10 is arranged for each block. However, in the embodiment shown in FIG. 5, all the base stations of each block are formed as the file transfer base stations 10. Is different from the above embodiment.

That is, all the base stations 10, 10,... In this embodiment have the same functional units as the file transfer processing function shown in FIG. However, the difference from the above-described embodiment is that the address of the own station is deleted when the file transfer destination management unit 330 receives the file transfer list from the file reception unit 310, and that the deleted file transfer File transmission unit 350 with list of system files
And transfers it to the next base station 10.

The file updating method according to the present embodiment will be described. First, the maintenance device 50 sequentially transmits a file transfer destination list of each block together with a system file for updating to any one of the base stations 10 of each block. I do. Next, in each block, the first base station 10 that has received the system file and the file transfer destination list from the maintenance device 50 deletes its own address from the received file transfer destination list. Next, the next transfer destination base station 10 is appropriately selected from the file transfer destination list, and the file transfer destination list and the received system file are transferred to the selected next base station 10.

Similarly, the second base station 10 receiving the system file and the file transfer destination list from the previous base station 10
Deletes the address of the own station from the file transfer destination list, selects the next base station 10, and transfers the received system file and the transfer destination list from which the address of the own station has been deleted to the base station 10. Hereinafter, similarly, the address of the own station is sequentially deleted from the file transfer destination list received together with the system file, the next transfer base station 10 is selected from the transfer destination list, and the system file and the file transfer list are respectively blocked. Base station 10 to another base station 10
Sequentially. Then, when the transfer destination address in the file transfer list runs out, the transfer of the system file is completed.

As described above, in the present embodiment, the system file and the file transfer destination list of the block are transmitted from the maintenance device 50 to an arbitrary base station 10 in each block, and the base station 10 sequentially transmits the block in each block. Base station 10
Since the file transfer is executed sequentially to the base station 10, for example, when the traffic of the mobile station is congested and the control line of the base station 10 is busy due to the influence of communication processing, the line to the base station 10 is connected. When it is difficult, a system file can be transferred by connecting a line to another base station 10 having a free line. As a result, the system file is sequentially transferred to the base station 10 on the empty line, and when the busy base station 10 becomes ready to receive the file, the system file is transferred from another base station 10 to the base station 10. Good to transfer. Therefore, the transfer destination of the system file is flexibly selected, and there is no time loss such as waiting for a free line of the busy base station 10, and the file transfer to all the base stations 10 can be further performed as compared with the above embodiment. It can be executed efficiently.

FIG. 6 shows a third embodiment of the mobile communication system to which the file updating method according to the present invention is applied. In each of the above embodiments, the file transfer base station 10 having the file transfer function is arranged in a part or all of the plurality of base stations. In the embodiment shown in FIG.
The point that a plurality of switching stations 60, 60 ... respectively accommodating a plurality of base stations 20, 20 ... of the respective service area blocks in the switching equipment 30 in the It is different from the embodiment.

That is, the exchanges 60, 60...
Is a switching station that accommodates a plurality of base stations 20, 20,... Of each block via a base station control device, such as a subscriber exchange close to a service area including a base station control device as described above, In addition to the call processing exchange function, a file transfer having a file transfer processing function of sequentially accumulating system files from the maintenance device 50 and transferring the system files to each of the accommodated base stations 20, 20,... It is an exchange.

For example, as shown in FIG. 7, the base station control device 500 includes wired lines 100, 100,.
, A communication processing circuit 520 for processing a signal of the communication channel, and a control signal and a maintenance signal via the communication processing circuit 520 to receive the base station 20, 20,. And a base station control circuit 530 for controlling The exchange 600 is connected to the base station controller 500 and the subscriber line, and performs predetermined exchange switches for performing these exchange processes, a plurality of line control circuits for controlling respective lines, various service trunks, and control of these. The present embodiment further includes a file transfer processing function unit 610 having the same configuration as the file transmission processing function shown in FIG.

In such a configuration, the file updating method according to the present embodiment will be described. First, the first file transfer which accommodates the base stations 20, 20,... Connect the line to the exchange 60. When the line connection is terminated, the first file transfer switching office
In step 60, the process proceeds to a file reception process.

Next, when the file transfer list is transmitted together with the system file from the maintenance device 50, the file transfer switching center 60 receives the system file at the file receiving section 310 and sends it to the file management section 320, where the file transfer is performed. The list is received and sent to the file transfer destination management unit 330.

When the reception is completed, a reception completion message is sent to the maintenance device 50 to disconnect the line. Subsequently, the maintenance device 50 transmits the system file to the second file transfer exchange 60, and the first file transfer exchange 60
Shift to the file transfer process to 20,20, ...

First, the first file transfer exchange 60 searches the file transfer list in the file transfer destination management section 330, selects the first base station 20, and sends the file transfer section 350 to the base station 20. Connect the line to. When the line connection is completed, the system file received by the file transfer control unit 340 is read, and the file is transferred from the file transmission unit 350. When the file transfer is completed and a reception completion message is received from the first base station 20, the line is disconnected and the next transfer destination is searched.

Thereafter, based on the file transfer list, the file transfer destination base stations 20 are sequentially selected, and the file transfer is repeated to each of the base stations 20, 20,... In the block. The base station 20 that has received the system file
Update system files from OM 220 to EEPROM 210.

Similarly, the second file transfer switching office 60 which has received the system file and the file transfer list from the maintenance device 50 repeats each of the base stations 20, 20... Of the blocks accommodated based on the file transfer list. Perform a file transfer.

Hereinafter, similarly, the maintenance device 50 includes the third, fourth,
..Sending the file transfer list of the system files and their blocks to the file transfer exchange 60 sequentially,
File transfer exchange that receives and stores system files
.. Transfer the system files to the respective base stations 20, 20,... Based on the file transfer list.

As described above, according to the mobile communication system and the file updating method according to the present embodiment, the exchanges 60, 60,... Accommodating the plurality of base stations 20, 20,. A unit 610 is provided to accommodate the base stations 20, 20,
・ ・ Because the system file received from the maintenance device 50 is transferred to the base stations 20, 20,... Without changing the functions of the base stations 20, 20,. File transfer can be performed efficiently.

In each of the above embodiments, the file transfer base station 10 or the file transfer exchange 60 receives the file transfer destination list from the maintenance device 50, and based on the list, the base stations 20, 20,. The system file is transferred to the file transfer base station 10 in the present invention.
Alternatively, the file transfer destination may be stored in the file transfer exchange 60.

Further, in the above-described embodiment, the case where the base station is applied to the PHS of the micro-cell system in which each base station is arranged at a very short distance in each service area has been described as an example. The present invention may be applied to other mobile communication such as a telephone and a car telephone. In particular, with mobile phones, such as in urban areas, as traffic increases,
Similar to the PHS, there is a tendency that the number of base stations is increased and microcells are formed, and the present invention is preferably applied to a mobile communication system including such a large number of base stations.

[0075]

As described above, according to the present invention, the system includes the file transfer base station for storing the system file from the maintenance device and transferring the system file to another base station. The system file can be efficiently transferred to many base stations without increasing the number, and a reduction in file update time can be expected.
Also, since the load on the maintenance device can be reduced, there is an excellent effect that other maintenance functions can be executed at the same time without increasing the processing capability of the maintenance device.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a mobile communication system according to the present invention.

FIG. 2 is a block diagram illustrating a configuration example of a base station applied to the embodiment of FIG. 1;

FIG. 3 is a functional block diagram showing a file reception processing function of a normal base station applied to the embodiment of FIG. 1;

FIG. 4 is a functional block diagram showing a file transfer processing function of a file transfer base station applied to the embodiment of FIG. 1;

FIG. 5 is a block diagram showing a second embodiment of the mobile communication system according to the present invention.

FIG. 6 is a block diagram showing a third embodiment of the mobile communication system according to the present invention.

FIG. 7 is a block diagram showing a configuration example of a file exchange according to the embodiment shown in FIG. 6;

[Explanation of symbols]

 10 File transfer base station 20 Normal base station 30 Switching equipment 40 Fixed network 50 Maintenance equipment

Claims (19)

[Claims] 1. A mobile communication system in which a plurality of base stations connected to a fixed network via a wired line accommodate mobile stations existing in respective communication areas via a wireless line. A maintenance device that is connected to a network and transmits a system file to the base station via the fixed network when data or a program is changed at the base station; and A mobile station comprising: a file transfer base station that receives a system file from a maintenance device, rewrites a system file of the own station, and transfers the received system file to another base station via the fixed network. Body communication system. 2. The system according to claim 1, wherein at least one file transfer base station is provided for each block including a plurality of base stations, and wherein the maintenance device transfers files for each block. A mobile communication system, wherein a path is sequentially connected to a base station via the fixed network, and a system file is sequentially transmitted for each block. 3. The system according to claim 1, wherein all of the base stations are formed as file transfer base stations, and the maintenance device is configured to perform the operation for each block including a plurality of base stations. A mobile communication system, wherein a path is sequentially connected to any one of the base stations via the fixed network, and a system file is sequentially transmitted for each block. 4. The system according to claim 1, wherein each of the base stations includes: a line control unit that controls a wired line connected to the fixed network; File receiving means for receiving a system file from the maintenance device, and file managing means for sequentially accumulating the system file from the file receiving means and managing the file. The file transfer base station further comprises: File transfer destination management means for managing a file transfer list indicating a file transfer destination; file transfer control means for transferring a system file received by the file reception means; and a system file from the file transfer control means. File transmission means for performing transmission processing based on the file transfer list of the file transfer destination management means Mobile communication system comprising a. 5. The system according to claim 4, wherein the file transfer destination managing means sequentially accumulates a file transfer list transmitted together with a system file from the maintenance device via the file receiving means, and A mobile communication system, wherein a file transfer destination is instructed to the file transmission means based on a transfer list. 6. The system according to claim 4, wherein said file transfer destination management means stores in advance a file transfer destination list including addresses or identification numbers of a plurality of other base stations in its own block. A mobile communication system for instructing the file transmission means on a file transfer destination based on the file transfer destination list. 7. A mobile communication system in which a plurality of base stations connected to a fixed network via a wired line accommodate mobile stations present in respective communication areas via a wireless line, wherein the system comprises: A maintenance device connected to a network and transmitting the system file to each switching facility accommodating the base station of the fixed network when data or a program is changed at the base station; The facility has a system file transmission processing function of sequentially accumulating system files from the maintenance device and transmitting the system files to the respective base stations accommodating the system files, in addition to a call processing exchange function for the base station. A mobile communication system characterized by the above-mentioned. 8. The system according to claim 7, wherein the switching equipment controls the wired line between the maintenance device and a base station to be accommodated, and the maintenance unit via the line control unit. File receiving means for receiving a system file from the device, file managing means for storing the system file from the file receiving means, and file transfer destination management for managing a file transfer destination list indicating a base station to which the system file is transferred Means, a file transfer control means for transferring the system file received by the file receiving means, and a file for transmitting the system file from the file transfer control means based on the file transfer list of the file transfer destination managing means. A mobile communication system comprising: a transmission unit. 9. The system according to claim 8, wherein said file transfer destination managing means sequentially accumulates a file transfer list transmitted together with a system file from said maintenance device via said file receiving means, and A mobile communication system in which a file transfer destination is instructed to a file transmission means based on a transfer list. 10. The system according to claim 8, wherein
The file transfer destination management means stores in advance a file transfer destination list including addresses or identification numbers of a plurality of base stations accommodated by the own station, and transfers the file to the file transmission means based on the file transfer destination list. A mobile communication system for indicating a destination. 11. A plurality of base stations accommodating a mobile station via a wireless line are connected to a fixed network including a maintenance device via a wired line, and each base station is connected with a system file from the maintenance device. In a method of updating a system file of a base station in a mobile communication system for updating data or a program, the method comprises the steps of: A step of preparing system file transfer processing means including a function similar to a system file transmission function at the time of updating a system file possessed by the apparatus; and passing the part of the base stations and the maintenance apparatus through the fixed network. Connect and send the update system file from the maintenance device to some base stations sequentially via the fixed network And sequentially connecting the base station that has received the system file and a plurality of other base stations via the fixed network, and sequentially transferring the system file to the other plurality of base stations. A method of updating a system file of a base station in a mobile communication system. 12. The method according to claim 10, wherein, when a system file is transmitted from the maintenance device to some base stations, a transfer destination from the base station to another plurality of base stations is transmitted. Transmitting a file transfer destination list representing the system file from the maintenance device, and transmitting the system file to other base stations based on the received file transfer destination list. A method for updating a system file of a base station in a mobile communication system, wherein the system file is sequentially transferred. 13. The method according to claim 10, wherein the method includes, to some base stations, a file transfer destination list including addresses or identification numbers of other base stations when transferring the system file. Including a step of storing in advance, the some base stations, when receiving a system file for updating from the maintenance device, sequentially to other base stations based on the file transfer destination list stored in advance A method of updating a system file of a base station in a mobile communication system, comprising: transferring a received system file. 14. A plurality of base stations accommodating a mobile station via a wireless line are connected via a wired line to a fixed network including a maintenance device, and each base station is connected to the base station by a system file from the maintenance device. In a method of updating a system file of a base station in a mobile communication system for updating data or a program, the method includes the steps of: Providing system file transfer processing means including a function similar to a system file transmission function at the time of updating a system file, and fixing the maintenance device between any of the base stations and the maintenance device. A path connection is made via a network, and the maintenance device sequentially transmits an update system file to the base stations. And connecting the system file from the base station that has received the system file from the maintenance device to the next transfer destination base station via the fixed network to transfer the system file. A path connection from the base station to another base station via the fixed network, and successively repeatedly transferring a system file from the base station to the base station. File update method. 15. The method according to claim 14, wherein when transmitting a system file from the maintenance device to any of the base stations, a file transfer destination list indicating a transfer destination of the system file is transmitted. And transferring a file transfer destination list to the next base station when transferring a system file from the base station to the base station. In this step, each base station receives a system file. Base station in a mobile communication system, wherein the address or identification number of the own station is sequentially deleted from the file transfer destination list, and the deleted file transfer list is transferred together with the system file to the next base station. How to update the station system file. 16. The method according to claim 14, wherein the method comprises the step of pre-stored in each base station the address or identification number of the next base station to which the system file is to be transferred. A method for updating a system file of a base station in a mobile communication system, wherein the base station, upon receiving the system file, transfers the received system file to a next base station according to an address or an identification number stored in advance. 17. A plurality of base stations accommodating a mobile station via a wireless line are connected to a fixed network including a maintenance device via a wired line, and each base station is connected to the base station by a system file from the maintenance device. A method of updating a system file of a base station in a mobile communication system for updating data or a program, the method comprising the steps of: providing a switching facility accommodating the base station with a call processing switching function for the base station; A step of preparing a transmission processing function in advance; a step of transferring a system file from the maintenance device to the switching equipment; and a step of sequentially connecting a path from the switching equipment to each base station and transferring the system file. A method for updating a base station system file of a mobile communication system, comprising: 18. The method according to claim 17, further comprising transmitting a file transfer destination list indicating a file transfer destination to the switching equipment when transmitting a system file from the maintenance device. A system file updating method for a base station in a mobile communication system, wherein the switching equipment transmits a system file to each base station based on the received file transfer destination list. 19. The method according to claim 17, wherein the method further comprises the step of storing in the exchange equipment a file transfer destination list indicating a file transfer destination when a system file is transmitted from the maintenance device. A system file updating method for a base station in a mobile communication system, wherein the switching equipment transmits a system file to each base station based on a file transfer destination list stored in advance.