KR19980069470A - Register signaling control method by country - Google Patents

Abstract

end. The technical field to which the invention described in the claims belongs

This is a technology to control register signaling that can be used in every country.

I. The technical problem to be solved by the invention

If the meaning value of the country or region is different, you can temporarily change the meaning value of the register signal corresponding to the country or region to test, but the changed database cannot be used continuously when the system is restarted. If the semantic value is different, it solves the problem of having to install and install the ROM having the semantic value of the R2 register signal for the relevant country.

All. Summary of Solution of the Invention

When the exchange system initially operates, it receives the country code inputted from the MAP, corrects the meaning of the R2 register signal corresponding to the received country code in the RAM, and stores the RAM in the RAM when an R2 signal is received from the outside. The R2 register signal is controlled by performing signal processing by changing the semantic value of the R2 register signal.

la. Important use of the invention: Applied to control register signal of exchange system.

Description

Register signaling control method by country

The present invention relates to a method of controlling register signaling (R2) used between exchanges, and more particularly, to a method of controlling register signaling that can be commonly used for each country of use.

In general, the register signaling method (R2 signal method) used in the exchange system is recommended to the CCITT. The meanings of the signals are as follows.

The basic meaning of the R2 register signal is classified into the meaning of the forward register signal and the meaning of the backward register signal. The omnidirectional register signal is classified into group I (selection signal) and group II (signal service class or type indication signal).

Meaning change from group I signal to group II signal occurs at the request of backward signal A3 or A5, and the signal changed to group II by A5 should be reduced to group I signal. The R2 register signaling starts with Group I signal, and the meaning of Group I forward signal is shown in Table 1 below.

TABLE 1

designation meaning Ⅰ1-Ⅰ10 Digit 1 to 0 I11 Access to incoming operator I12 Request not accepted access to oprator I13 Access to test equipment Does not include satellite links I14 incoming semi-suppressor required satellite link included I15 End of pulse Check End

The Group II signal is a caller type signal transmitted by the R2 calling register in response to the reverse signal A-3 or A-5 and provides information on whether the domestic / international connection is applied and the meaning of the signal is shown in Table 2 below. .

TABLE 2

Name meaning II1 Unpriority subscribers II2 Priority subscriber II3 Maintenance unit II4 Spare II5 Operator II6 Data transfer II7 Subscriber (or operator without forward equipment) II8 Data transfer II9 Priority subscriber II10 Operator with forward transmission equipment II11 to II15 Spare

The meaning of the backward register signal is classified into group A (confirmation and control signal of the forward signal) and group B (confirmation of the forward signal and the status or class indicating signal of the called subscriber line). The meaning change from the group A signal to the group B signal is by the signal A3, and the signal changed by the group B is not reduced to the group A. The group A backward signal is shown in Table 3 below, which is necessary to identify the group I signal and is under a specific state of the group II signal.

TABLE 3

Name meaning A1 Send next digit A2 Send last but one digit A3 Address complete, group B signal switching A4 Domestic Congestion A5 Caller ID Signal A6 Address Completion, Billing, Call Status A7 Send last but two digit A8 Send last but three digit A9 Spare A10 A11 Send country code display A12 Send language or discriminant digits A13 Line type signal A14 Echo suppressor usage information request A15 International Exchange Runaway

The group B backward signal is shown in Table 4 below. The group II signal is checked and the A-3 signal is preceded. Transmit switch status, subscriber line status.

TABLE 4

Name meaning B1 Spare B2 Send special information tone B3 Subscriber busy B4 Congestion B5 Number B6 Subscriber line busy, billing B7 Subscriber line busy, non-charged B8 Subscriber line failure B9 Spare B10 B11 B12 B13 B14 B15

However, the R2 signal recommended in CCITT is slightly different in meaning and usage of each signal.

1 is a block diagram for processing an R2 register signal of an exchange system.

CPM (Central Processing Module) 10 is a central processing module. It consists of a control unit and a connection unit for each hardware peripheral device necessary for the operation of the exchange software.The main functions of the main control unit are call processing, system configuration diagnosis, statistics, monitoring, signal processing, etc. to be. Signal processing exchanges messages with LPM 18, which monitors and signals subscriber lines at each subscriber's line through the link in SPM 16, and processes them via dual-port memory. MAP (Maintenance Administration PC 14 is connected to the I / O port provided by IPM 12 to connect IBM PC / AT compatible models to diagnose and manage the system. IPM 12 is mounted on the control shelf and has eight I / O ports. Performs a function of a controller for connecting an I / O controller for controlling the controller and a hard disk, which is a backup memory for storing system programs and data, transmits parallel data with the CPM 10, and performs serial communication with the MAP 14. SPM (Signal Processing Module) 16 is a dedicated signal processor that sends and receives messages to and from LPM 18, which monitors and signals subscriber lines on each subscriber's line through a 512Kbps link. Line Processing Module (LPM) 18 is located in each subscriber pump to investigate what events have occurred on each subscriber board. It informs the SPM 16 through the signaling link and processes the message received from the SPM 16. The Multi-frequency Sender Receiver (MFSR) 20 receives the processing channel information and performance function operation mode information through the LPM 18 and assigns the information to each channel. Depending on the operation mode, serial PCM data provided from the time switch is processed to 32 channels of 1SHW (Sub-High-Way) unit in accordance with the time slot. One of the methods, Dual Tone Multi Frequency (DTMF) and Common Line Signaling, simultaneously handles three types of signaling, which are required for the check of inter-channel calls. Through the RS-232C interface 114, it is possible to check and monitor the normal operation of various circuits and functions of the MFSR 18, and to transmit and receive data at the transmission speed of 9600bps.

FIG. 2 is a detailed block diagram of the MFSR 20 of FIG. 1.

The processor interface unit 106 includes two FIFOs. One FIFO writes data from the LPM 118 and specifies the mode information and the transmitted frequency for each port. The other FIFO displays the processed frequency data information. Save for reading at LPM 18. In addition, the processor interface unit 106 includes an MK4501, which is a controller that controls the FIFO to communicate with the LPM 18. The R2 controller 100 uses 68000, a 1-chip microprocessor, for effective control of the signal service function and periodic check of board status. The R2 controller 100 operates at a clock frequency of 8 MHz and the instruction execution speed takes 1 μs in 1 machine cycle. . The R2 control section 100 is composed of 1732 bit data, an address register, a 16 bit data bus, a 24 bit address bus, and the like. The ROM 102 stores a receiving unit 110 for receiving R2MFC, DTMF, and CCT signals, a function for data interface, controlling PCM signal transmission, and a function for self-testing MFSR 18. Transmitter 108 receives information related to each transmission and reception required for each channel from lpm 18 in the r2 controller 100 and receives 8-bit information related to transmission. PCM data necessary for each of 32 channels according to this information data is received. Synchronize with the channel to send serial. The receiver 110 receives the serial PCM data input through the SHW interface 112, detects the PCM signal, and processes 32 channels of PCM data using four DSP chips. The Sub-High-Way (SHW) interface 112 interfaces PCM data with 32 times of data in one SHW unit according to the timeslot.

3 is a control flowchart of a conventional register signal.

In order to control the register signal in the exchange system, an operation of registering the default semantic value of the R2 register signal of the corresponding country in ROM 102 and changing the semantic value of the register signal will be described with reference to the flowchart of FIG. 3. If the semantic value is changed while using the default semantic value of the R2 register signal stored in ROM 102, the changed semantic value should be registered and processed. Therefore, in step 201, the R2 controller 100 receives the change value of the register signal from the terminal 22 through RS232C 114 and stores it in RAM 104. At this time, if the change value of the register signal is not input, the semantic value of the default register signal registered in ROM 104 is stored in RAM 102 and the service is performed with the semantic value of the default register signal. The register signal change value stored in the RAM 104 becomes a meaning value corresponding to the signal of the database. Thereafter, when the R2 signal is received through the SHW interface 112 and the receiver 110 in step 202, the process proceeds to step 102, and the signal is changed to a semantic value stored in the database. In step 204, the R2 controller 100 analyzes the signal changed to the semantic value stored in the database, and sends the response signal to the CPM 10 through the processor interface 106, the LPM 18, and the SPM in step 205. Thereafter, in step 206, the R2 controller 100 changes the response signal to a semantic value registered in the database and proceeds to step 207. In step 207, the meaning value of the changed R2 register signal is transmitted through the transmitter 108 and the SHW interface 112.

In the conventional R2 register signal control method, if the meaning value of a country or region is different, it may be temporarily changed to a meaning value of a register signal corresponding to the corresponding country or region, and a test may be performed. Cannot be used continuously, and if the meaning value is different for each country, there is a problem of having to manufacture and install a ROM having a meaning value of an R2 register signal for a corresponding country.

Accordingly, an object of the present invention is to provide a country-specific register control method that can register and select the semantic value of the register signal of all countries in the database in order to solve the above problems and to select and service according to the country.

In order to achieve the above object, the present invention provides an R2 signal from an external device after receiving a country code inputted from a MAP when an exchange system is initially operated, correcting a meaning value of an R2 register signal corresponding to the received country code in a RAM. When R is received, the R2 register signal is controlled by changing the meaning of the R2 register signal stored in the RAM to perform signal processing.

1 is a block diagram for processing an R2 register signal of an exchange system

2 is a detailed block diagram of the MFSR 20 of FIG.

3 is a flow chart illustrating a conventional register signal

4 is a map structure diagram of RAM 104 for R2 database control according to an embodiment of the present invention.

5 is a flowchart for controlling a country-specific R2 register signal according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The hardware block configuration according to the embodiment of the present invention is the same as that of FIGS. 1 and 2, but the ROM 102 includes a database for register signal semantic values corresponding to multiple countries.

Meaning values of the register signal provided in the database will be described taking the Republic of Korea, China and India as an example.

Mean values of the register signal of the Republic of Korea are shown in Table 5 below, the forward register signal is classified into Group I (selection signal) and Group II (signal service class or type indication signal of the calling subscriber). Meaning change from Group I signal to Group II signal occurs at the request of Backward signal or A5, and the signal changed to Group II by A5 should be reduced to group Group I signal. Backward register signal is classified into Group A (forward signal confirmation and control signal) and Group B (forward signal confirmation and status of incoming subscriber's line or class indication signal). The meaning change is by A3 signal, and the signal changed by Group B is not reduced to Group A.

TABLE 5

signal Group Ⅰ Group Ⅱ Group a Group b One Digit 1 General subscriber next digit Subscriber line non busy 2 Digit 2 Priority subscriber n-1 digit Subscriber changed number 3 Digit 3 Maintenance device Digit reception completed, call grade sent to Group B Subscriber line busy 4 Digit 4 Payphone Trunk runaway Trunk runaway 5 Digit 5 Operator Calling class, calling number request Number 6 Digit 6 Data transfer Completed Digit Receipt Subscriber line busy, billing 7 Digit 7 International n-2 Digit Subscriber line Non busy, non billing 8 Digit 8 n-3 digit Subscriber line failure 9 Digit 9 Digit Resend Spare 10 Digit 0 Spare 11 Spare Spare 12 Request not acceptable 13 Test device access 14 Spare 15 Digit sending end

And the basic meaning of the Chinese register signal is shown in Table 6.

TABLE 6

FORWARD SIGNAL group Name Primary meaning Volume I KA Calling subscriber category 10/15 KC Toll connection category 5 KE Toll-Local, Local-Local ConnectionCategory 5 Digital signal Digit 1-0 10 Ⅱ KD Service class of orignating call 6 Backward signal A A Signal Acknowledgment of forward signals and convetance of signaling information for connection 6 B B signal State of called subscriber 6

In Table 6, the signal significance values of Group I and Group A are shown in Table 7 below.

TABLE 7

Signalcode Group I Forward Group a backward Digitsignal KA KC KE A One digit 1 regular not used Send next digit 2 digit 2 inumediatechargingUser Meter Send from 1'stdigit 3 digit 3 inumediatechargingPrinter transfer to Group B 4 digit 4 Spare Congestion 5 digit 5 Free Vacant number 6 digit 6 Spare send KA andcalling number 7 digit 7 not used 8 digit 8 Priority 9 digit 9 Spare 10 digit 0 11 not used Spare Spare 12 designtedcall 13 test test call test call 14 Spare Priority call Spare 15 satellitelink used

In Table 7, the signals of Group I consist of connection control signals and digital signals, and are classified into four types according to their use. The KA signal is a forward caller classification signal for transmitting charge status and priority from the local exchange to the toll or the destination exchange. The KC signal is a forward access control signal generated during the toll exchange and has completion functions such as priority subscriber call security, satellite circuit division control, designated call, and other designated connection (tester call). The KE signal is a forward connection control signal used during the Toll exchange and the Local exchange. Digit signal is used to transmit calling party number and called number. Signal 15 indicates that the caller number has ended.

Group A signal is a mutual control signal of Group I, and serves to control / detect the Group I signal. The A1, A2, and A6 signals are transmission number order control signals that control the order of the forward digits. The A3 signal controls the conversion to the Group B signal. The format is shown in Table 8 below. The A4 signal is a signal that a call failed because it encountered a busy signal before connecting to the called subscriber. The A5 signal indicates a connection phase fault before connecting to the called subscriber.

TABLE 8

Distinction between stations A3 format Local Exchange Compelled Termination Toll-Local Exchange Originating Local-Toll Exchange Automatic Impulse Semiautomaitc Compelled Originating Local-International Automatic Impulse Semiautomaitc Compelled Impulse

Meaning values of the Group II and Group B signals are shown in Table 9 below, and the Group II Forward signal (KD) is used as a signal for initiating business. The Group Backward signal KB is a signal indicating the called state and serves to control the connection of the Group II signal.

TABLE 9

Signal code Group II forward signal (KD) Group B Backward signal (KD) KD = 1,2 or 6 KD = 3 or 4 One Semiautomaticcall by tolloperator For tollconnection Called subscriber idle Called subscriber idle 2 Domesticautomaticdemand call bysubscriber Called subscriber local busy Spare 3 Local telephone For Localconnection Called subscriber toll busy Spare 4 Local facsimile or prioritysubscriber Equipment congestion Calledsubscriber orequipmentcongestion 5 Operator checks the callingparty number Called subscriber is vacant number Calledsubcriber isvacant number 6 Test call Spare Calledsubscriberidle (When first party controlor called party control is applied for the newwork

The role of the Group II signal KD shown in Table 9 is shown in Table 10 below.

TABLE 10

KDsignal code Signal Meaning Classification Role of KD (GroupⅡ) Signal Local Phone Insertion Insertion by long distance operator end part end part One Long distance telephone operator 0 - - 0 2 Long distance auto call - 0 - 0 3 Local call - 0 0 - 4 Local Subscriber Fax / Subscriber Data Communication Priority Use - 0 - 0 5 Semi-automatic of call number - - - - 6 Test call - 0 - -

In addition, the meaning of the R2 register signal of India is shown in Table 11 below.

TABLE 11

signal Forward signal Backward signals GroupⅠ Group II Group a Group b One Digit 1 Ordinary subscriber Send next digit Spare 2 Digit 2 Priority subscriber Restart Changed number 3 Digit 3 Spare Change over torecepion of B-signal Called linebusy 4 Digit 4 Spare Calling lineidentification Congestion 5 Digit 5 Operator Send category of the calling subscriber Unallocatednumber 6 Digit 6 Spare Switch-through the speech path Normal subscriber, free, metering 7 Digit 7 Spare Send last buttwo digit Spare (Normal subscriber, free, non-meter) 8 Digit 8 Spare Send last but threedigit Spare 9 Digit 9 Spare Send last but onedigit Spare 10 Digit 0 Spare Spare Spare

In the present invention, the semantic value of the R2 register signal for each country is registered in the ROM 102 for each country.

4 is a map structure diagram of RAM 104 for R2 database control according to an embodiment of the present invention.

The NORMAL CALL processing area and the ANI (Automatic Number Identification) data processing area are areas for operating in two states of the R2 signal processing mode.

5 is a flowchart for controlling a country-specific R2 register signal according to an embodiment of the present invention.

The operation of the embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2 and FIGS. 4 to 5.

In the structure of the RAM 104 of FIG. 4, a frequency meaning value is sequentially stored in 16 bytes for 16 R2 frequency values in a receive region, and a frequency value of 32 bytes for 32 frequency meanings is stored in a send region. In the ROM 102, for example, 16 databases having the structure as shown in FIG. 4 may be stored, and 16 or more may be stored according to the capacity of the ROM. The database having the structure as shown in FIG. 4 stored in the RAM 104 has a semantic value controlling the R2 register signal of a country. Referring to the flowchart of FIG. 5, an operation of processing an R2 signal corresponding to a country by storing a semantic value for processing R2 register signals stored in ROM 102 is performed in step 301. 100 requests information for R2 signal control to CPM 10 via processor interface 106 and LPM 18 and SPM 16. In other words, it requires a country code for R2 register signal service. At this time, the CPM 10 stores the country code inputted by the operator through the MAP 14 in the memory, and authorizes the country code stored in the memory to the MFSR 20 through the SPM 16 and the LPM 18. Then, in step 302, the R2 controller 100 receives the corresponding country code through the processor interface 106 and proceeds to step 303. In step 303, the R2 controller 100 reads data corresponding to the received country code stored in the ROM 102 and stores the data in the RAM 104. This will allow the R2 register signal for that country to be serviced. Then, in step 304, when the R2 control unit 100 receives the R2 register signal through the SHW interface unit 112 and the receiver unit 110, in step 305, the R2 control unit 100 changes from the database stored in the RAM 104 to the semantic value of the R2 register signal of the corresponding country. Proceed to In step 306, the R2 controller 100 analyzes the signal changed to the semantic value stored in the database of the RAM 104, sends the signal to the CPM 10 through the processor interface 106, the LPM 18, and the SPM in step 306, and receives a response signal. To process Thereafter, in step 307, the R2 controller 100 receives a signal from the CPM 10 in response to the processed signal, changes the semantic value registered in the database, and proceeds to step 308. In step 309, the meaning value of the changed R2 register signal is transmitted through the transmitter 108 and the SHW interface 112.

As described above, the present invention can store and service R2 signal information of more than 16 countries in a ROM using a database, so that R2 register signals of all countries can be serviced, and thus ROMs can be separately produced for each country. There is no need to shorten the work time, there is an advantage that does not require the country version (Version) management.

In addition, it is easy to test because the operator can change the database of the RAM area arbitrarily.

Claims (2)

In the method for controlling the R2 register signal for all countries having a ROM for storing the semantic value of the R2 register signal corresponding to multiple countries, When the exchange system initially operates, it receives the country code inputted from the MAP, corrects the meaning of the R2 register signal corresponding to the received country code in the RAM, and stores the RAM in the RAM when an R2 signal is received from the outside. Country-specific register signal control method in an exchange system characterized by controlling the R2 register signal by performing a signal processing by changing the semantic value of the R2 register signal. In the method for controlling the R2 register signal for all countries having a ROM for storing the semantic value of the R2 register signal corresponding to multiple countries, Requesting information for controlling R2 signal to CPM during initial operation and receiving the corresponding country code; Reading data corresponding to the received country code and storing the data in RAM; When the R2 register signal is received from the outside, changing from the database stored in the RAM to a meaning value of the R2 register signal of the corresponding country; Processing a signal by analyzing a signal changed to a meaning value stored in the RAM database; Receiving a signal in response to the processed signal is a register signal control method for each country in the exchange system characterized in that it is made to the process of changing the meaning value registered in the database to the outside.