KR20010002104A - Method for increasing the number of subscriber of integrated services digital network in exchanger system - Google Patents

Abstract

PURPOSE: A method for increasing the number of integrated services digital network(ISDN) subscribers of a switching system is provided to store complete subscriber numbers and information only in an ISDN interface unit without storing the complete subscriber numbers and information in every processor, so that efficiency of memory resources is improved. And the method is provided to detect a preset digit of code and to mutually transmit the detected digit to processors. CONSTITUTION: Subscriber numbers are pre-registered only with a predetermined digit of code. If an incoming signal is detected to an optional subscriber, a code of the detected incoming signal is translated. A subscriber number and subscriber information are transmitted to an access switching processor(ASP) through a line where the translated code is designated. The ASP receives the transmitted subscriber number and the subscriber information, and translates a code of the subscriber number. The subscriber number and the subscriber information are transmitted to an integrated services digital network(ISDN) interface unit through the line where the translated code is designated.

Description

METHOD FOR INCREASING THE NUMBER OF SUBSCRIBER OF INTEGRATED SERVICES DIGITAL NETWORK IN EXCHANGER SYSTEM}

The present invention relates to a switching system, and more particularly, to a method for increasing the number of subscribers to an integrated telecommunication network.

1 is a block diagram showing the internal configuration of a general exchange system.

The exchange system is implemented with a Central Control Subsystem (CCS) 100, an Interconnection Network Subsystem (INS) 130, and an Access Switching Subsystem (ASS) 150.

The CCS 100 includes a Peripheral Processor (PP) 111 for controlling and monitoring a plurality of devices requiring real time processing, and the exchange system such as billing, statistics, interfacing with an operator, database management, and the like. An Operation and Maintenance Processor (OMP) 115 that performs overall operations and maintenance functions of the disk, and a Disk 117 that stores I / O data under the control of the OMP 115; And a magnetic tape (MT) 119 and a CRT 121. The data communication between the PP 111 and the OMP 115 and the data communication with the INS 130 are implemented by an interprocessor communication (IPC) 113.

The INS 130 is composed of a plurality of main processors (MPs) 131 and a PP 133 to perform data communication through the IPC 135, and to transmit data transmitted from the CCS 100. It connects to the ASS 150 through a central data link block (CDL) 137 to connect between the ASS 150 or between the ASS 150 and the CCS 100. do. In addition, the INS 130 includes an NTP (Number Translation Processor) 139 for translating a call number inputted during the exchange function of the exchange system, and the NTP 139 has an internal memory. .

The ASS 150 is composed of an Access Switching Processor (ASP) 157 and a plurality of PPs 151 for subscriber registration of the switching system, and performs data communication through the IPC 155. The CDL 153 is coupled to the INS 130 to perform data communication. Here, the ASP 157 has an internal memory.

In addition, the ASP 157 and the subscriber board 160 are matched, and the subscriber board 160 is connected to a plurality of subscribers (subscriber 1, subscriber 1) through an ISDN (Integrated Sevices Digital Network) matching unit 170. 2, ..., subscriber N) to provide comprehensive telecommunication services. Here, the ISDN matching unit 170 is an ISDN Primary Rate Interface (PRI), and it is possible to provide a service by designating a plurality of subscribers in one physical line.

2 is a diagram illustrating an example of an index table for designating a subscriber information group for a conventional subscriber number search.

3 is a diagram illustrating an example of an index table for designating a subscriber information register for searching a conventional subscriber number.

As described in FIG. 1, since a plurality of subscribers (subscriber 1, subscriber 2, ..., subscriber N) are assigned to one hardware line through an interface provided by the ISDN matching unit 170, the service is provided. The information for each of the plurality of subscribers for the one line must be stored.

By the way, other subscriber numbers and information other than the main subscriber number and information are stored and managed in a separate memory area, and a table designating the separate memory area is shown in FIGS. 2 and 3. Up to 104 groups per line And, if it is possible to designate and use a maximum of 64 subscribers in each of the 102 groups, first to designate a subscriber information group table shown in FIG. In order to search sequentially, the search is performed from the first column to the twelfth row in order to search for groups in which subscriber information is not stored. For example, setting "1" in the first row and the seventh column 200 means that other subscriber information is stored in the subscriber information group, and in the thirteenth row and the fifth column 220. The setting of "0" means that no other subscriber information is stored in the subscriber information group. Thus, the subscriber information to be stored is stored in the table area set to "0" as a result of the search, so that the table area set to "0" is set to "1". (5th row 3rd column 210)

In addition, after designating the subscriber information group, an index indicating an area where the subscriber information in the designated subscriber group is actually stored must be designated. Register the subscriber information storage area. For example, "1" is set in the 20th bit 300 of the D_PRI_BFM1 means that the subscriber information is stored in the memory area corresponding to the 20th bit designation index, and the fourth bit of the D_PRI_BFM2 If 310 is set to "0", it means that the subscriber information is not stored in the memory area corresponding to the fourth bit designation index.

By the way, the subscriber information for the plurality of subscribers should be stored in the ISDN matching unit 170, ASP 157, and NTP 139, respectively, but it is possible to retrieve the subscriber information for incoming and outgoing calls. I did. Thus, waste of memory resources due to the same number of subscribers and subscriber information for a plurality of subscribers are stored in each processor, that is, the ISDN matching unit 170, the ASP 157, and the NTP 139. There was.

In addition, a load has occurred due to a plurality of processes of accessing the subscriber information from each processor to read data, and the number of subscribers that can be specified is limited because the stored subscriber number stores a complete subscriber number. There was a problem.

Accordingly, it is an object of the present invention to provide a method for increasing the number of ISDN subscribers in a switching system.

It is another object of the present invention to provide a method for increasing the memory resource efficiency of an exchange system.

In order to achieve the above object, the present invention provides an operation and maintenance processor for interfacing with an operator, a number translation processor for performing number translation of subscriber numbers transmitted and received, and a plurality of subscribers through a comprehensive information network matching unit. A method of increasing the number of subscribers in an integrated information communication network of an exchange system having a matching exchange processor, the method comprising: registering a subscriber number only with a specific number of station numbers, and detecting an incoming call to any one of the plurality of subscribers. Translating the station number of the incoming call, transmitting the subscriber number and the information to the matching exchange processor through a line in which the translated station number is designated, and transmitting the subscriber number and the information transmitted by the matching exchange processor. Receiving and translating the station number of the subscriber number; And a via line that is translated to station number is assigned yirueojim the subscriber number and the subscriber information to the process of transferring the part ISDN matching characteristics.

1 is a block diagram showing the internal configuration of a general exchange system

2 is a diagram illustrating an example of an index table for designating a subscriber information group for a conventional subscriber number search.

3 is a diagram illustrating an example of an index table for designating a subscriber information register for searching a conventional subscriber number.

4 is a diagram illustrating a number translation table according to an embodiment of the present invention.

5 is a signal flow diagram illustrating an incoming call receiving process according to an embodiment of the present invention.

FIG. 6 is a flowchart illustrating a subscriber number translation process of an incoming call of FIG. 5 in detail.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, only parts necessary for understanding the operation according to the present invention will be described, and descriptions of other parts will be omitted so as not to distract from the gist of the present invention.

4 is a diagram illustrating a number translation table according to an embodiment of the present invention.

5 is a signal flow diagram illustrating an incoming call receiving process according to an embodiment of the present invention.

FIG. 6 is a flowchart illustrating a subscriber number translation process of an incoming call of FIG. 5 in detail.

First, when an incoming call is detected from an external subscriber in step 511, the NTP 139 proceeds to step 513 to translate the subscriber number of the detected incoming call. Here, the subscriber number translation performed in step 513 will be described in detail with reference to FIG. 6 below.

When the translation of the subscriber number is completed, the NTP 139 proceeds to step 515. In step 515, the NTP 139 checks whether the last number translation of the translating subscriber number is performed. Here, in the case of an exchange system designating the subscriber number as a three digit number, for example, "405", the NTP 139 checks whether or not the last third digit of the three digits constituting the subscriber number is translated. If the last number translation of the subscriber number is found as a result of the test, the NTP 139 returns to step 513 to continue translation of the subscriber number.

If the check result is the last number translation of the subscriber number, the NTP 139 proceeds to step 517. In step 517, the NTP 139 transmits the subscriber number and corresponding subscriber information to the ASP 157 through a corresponding line in which the number translated subscriber number is designated.

The ASP 157 receives the subscriber information and the subscriber number transmitted by the NTP 139 in step 519, retrieves the subscriber information and the subscriber number, and proceeds to step 521. In step 521, the ASP 157 transmits the subscriber information and the subscriber number to the ISDN matching unit 170 on the corresponding line where the subscriber number corresponding to the retrieved subscriber information is designated. The ISDN matching unit 170 reads and searches the subscriber number and subscriber information table including the subscriber number and subscriber information received from the ASP 157 through the line in step 523 and proceeds to step 525. In step 525, the ISDN matching unit 170 connects the call to the corresponding subscriber corresponding to the searched subscriber number.

Meanwhile, step 513, which is a process of translating the subscriber number of an incoming call by NTP 139, will be described in detail with reference to FIGS. 4 and 6, for example, a three-digit station number in the switching system, for example, " The case where 405 "is designated will be described.

First, when there is an incoming call from an external calling party subscriber to any subscriber of the switching system, for example, an ISDN subscriber having a subscriber number of " 02-405-1234 ", the NTP 139 first starts the subscriber at step 610. Search for the area code of the number. In this case, searching for the area code of the subscriber number searches for an area code table (not shown) stored in the memory of the NTP 139, searches for an area code of "02," and proceeds to step 620. . In step 620, the NTP 139 transitions to a station number table storing a station number corresponding to the searched area code and proceeds to step 630. In step 630, the NTP 139 searches for the first station number and proceeds to step 640. In this case, searching for the first station number transitions to the station number table according to the area code search, where the transition position transitions to a position for searching the first station number, for example, an index "0" 411. The first station number 4 (413) is detected by searching for the number corresponding to the first station number among the numbers registered in the index "0".

In step 640, the NTP 139 detects that a second station number subsequent to the first station number exists and indicates a state value indicating that there is a second station number subsequent to the first station number in the status register 414. (next) is designated and 1111 is assigned to the register 415 which designates the index number of the position where the second station number is to be searched, and proceeds to step 650.

In step 650, the NTP 139 transitions to the index " 1111 " 417 corresponding to the index number designated by the register 415, and the number corresponding to the second station number among the numbers registered in the index " 1111 ". Search to detect the second station number 0 (419) and proceed to step 660.

In step 660, the NTP 139 detects that a third station number subsequent to the second station number exists and indicates a state value indicating that a third station number is next to the second station number in the status register 420. 2222 is specified in the register 421 which designates (next) and specifies the index number of the position where the third station number is to be searched, and proceeds to step 670.

In step 670, the NTP 139 transitions to the index "2222" 423 corresponding to the index number designated by the register 421, and the number corresponding to the third station number among the numbers registered in the index "2222". The third station number 5 425 is detected, and a state value last indicating that the station number subsequent to the third station number does not exist, that is, the last station number, is stored in the status register 426.

As shown in FIG. 6, the subscriber number is searched and transmitted to the corresponding line only by the number of the station number set in the switching system.

Therefore, rather than storing the subscriber number specified in one line in a complete form, for example, 7-digit form, if a certain digit form, that is, 3-digit station number is set in advance in the exchange system, only the 3-digit station number is searched. After that, the subscriber number is transmitted through the corresponding line.

According to the present invention as described above, each processor performing transmission / reception call processing in the switching system does not store and use the subscriber information and the subscriber number matched with the switching system as it is. Sending / receiving call processing can be performed even if the subscriber stores only the complete subscriber number and subscriber information which are actually transmitted and received. Thus, the efficiency of memory resources is increased by eliminating the storing of the complete subscriber number stored in each processor that performs the exchange system transmit / receive call processing.

In addition, it is possible to match an increased number of subscribers through the same memory resource by detecting only a preset number of stations and transmitting them to each other, rather than storing a complete subscriber number. By retrieving only a certain number of station numbers instead of searching each number, there is an advantage that the hardware and software load on the existing full form of subscriber number retrieval is eliminated.

Claims (10)

Comprehensive exchange system including an operation and maintenance processor for interfacing with an operator, a number translation processor for translating the number of subscriber numbers transmitted and received, and a matching exchange processor for matching with a plurality of subscribers through an integrated telecommunication network matching unit. In the method of increasing the number of subscribers of the information network, Registering the subscriber number only with a certain number of station numbers in advance; Translating a station number of the detected incoming call when an incoming call is detected by any one of the plurality of subscribers; Transmitting the subscriber number and the information to the matching exchange processor through a line in which the translated station number is designated; Receiving the transmitted subscriber number and information at the matching exchange processor and translating the station number of the subscriber number; And transmitting the subscriber number and subscriber information to the integrated information network matching unit through a line designated with the translated station number. The method of claim 1, Receiving a subscriber number and subscriber information transmitted from the matching exchange processor by the integrated information communication network matching unit and detecting a total number constituting the received subscriber number; And connecting the incoming call to a subscriber corresponding to the detected subscriber number. The method of claim 2, And a station number registered in the exchange system is formed in a table form, and stored in the number translation processor and the matching exchange processor in the same manner. The method of claim 3, The integrated information network matching unit detects the subscriber number received from the matching exchange processor based on the subscriber number constituting the entire subscriber number and a table storing the subscriber information. . Comprehensive exchange system including an operation and maintenance processor for interfacing with an operator, a number translation processor for translating the number of subscriber numbers transmitted and received, and a matching exchange processor for matching with a plurality of subscribers through an integrated telecommunication network matching unit. In the method of increasing the number of subscribers of the information network, Registering subscriber information and subscriber numbers for the plurality of subscribers in the integrated information communication network matching unit with the digits constituting the actual subscriber number; Registering only a part of the actual subscriber number corresponding to the number of digits corresponding to the subscriber information and the station number of the subscriber number in the matching exchange processor; And registering only a part of subscriber information and a part of the subscriber number in the number translation processor in the same manner as the matching exchange processor. The method of claim 5, Registering subscriber information and subscriber number with each processor and translating a station number of the detected incoming call when an incoming call is detected by any of the plurality of subscribers; Transmitting the subscriber number and the information to the matching exchange processor through a line in which the translated station number is designated; Receiving the transmitted subscriber number and information at the matching exchange processor and translating the station number of the subscriber number; And transmitting the subscriber number and subscriber information to the integrated information network matching unit through a line designated with the translated station number. The method of claim 6, Translating the station number of the incoming call; Searching for an area code of the incoming call subscriber number; Transitioning to a station code table storing a station code corresponding to the searched area code; And searching for only a preset number of station numbers in the station number table. The method of claim 7, wherein And transitioning by specifying a location index for searching for the number of the first digit constituting the station code when the station number table corresponding to the searched area code changes. The method of claim 8, Detecting the first station number of the incoming call among the numbers registered in the position index of the first digit; Specifying an index number of a position where the second station number is to be searched if it is detected that the second station number subsequent to the first station number detected exists; Transitioning to the designated index and detecting the second station number among the numbers registered in the index; Specifying an index number of a position where the third station number is to be searched if it is detected that a third station number subsequent to the detected station number exists; And detecting the third station number among the numbers registered in the index by transitioning to the designated index. The method of claim 9, And detecting the presence of the second station number and the third station number, specifying a status value indicating that the second station number and the third station number exist.