KR0152223B1 - Representation number equality call distribution method of exchanger - Google Patents

Abstract

The present invention relates to an equal call distribution method among representative number services in a narrow-band integrated telecommunication network switch. In order to provide a uniform call distribution method in which hunting is performed in advance and the concentration of incoming call distribution is eliminated, a representative number call incoming processing request is required. A first step (31 to 33) determining whether the processor is overloaded or the line is blocked after checking the received information and performing the corresponding hunting process; A second step of repeating from the hunting process of the first steps 31 to 33 if the processor is overloaded or the line is blocked; And determining the individual lines in the representative number group and requesting the subscriber to occupy the party if it is not overloaded, and then determining the line and requesting the subscriber to occupy the subscriber if it is not overloaded. Including 35), it is possible to prevent a phenomenon in which the distribution of incoming call occupancy in the representative number group is concentrated on an unspecified line.

Description

Distribution of Representative Numbers Uniformly at the Exchange

1 is a configuration diagram of a narrowband integrated telecommunications network switch system to which the present invention is applied.

2 is a flow diagram of a general representative local call control procedure.

3 is an overall flow chart in accordance with the present invention.

4 is a detailed flowchart of an even call distribution hunting process according to the present invention.

* Explanation of symbols for main parts of the drawings

11: access switching subsystem 12: internal network subsystem

13: central control subsystem

The present invention relates to a uniform call distribution (UCD) method of a representative number service in a narrowband integrated telecommunication network switch.

Representative numbering methods currently provided in narrowband integrated telecommunication networks include sequential and circular methods.

However, the conventional representative number processing method is performed at the point of time when the hunting demands the incoming call occupancy, and there is a problem that a phenomenon in which the distribution of each incoming call occupancy in the representative number group is concentrated on an unspecified line.

Accordingly, an object of the present invention is to provide a uniform call distribution method in which hunting is made in advance and eliminates concentration of incoming call distribution.

In order to achieve the above object, the present invention provides a representative number equal call distribution method applied to an exchange system, when receiving a representative number call incoming processing request, the processor checks the received information and performs the corresponding hunting process. Determining whether a line is blocked; A second step of repeating from the hunting process of the first step if the processor is overloaded or the line is blocked as a result of the determination of the first step; And a third step of determining the individual line in the representative number group and notifying the representative number call release when the call is released after requesting the occupancy of the called subscriber if it is not overloaded, as a result of the determination of the first step.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention;

1 is a block diagram of a narrowband Telecommunication Switching System to which the present invention is applied, where 11 is an access switching subsystem, 12 is an internal network subsystem, and 13 is a central control subsystem, respectively.

ASS (Access Switching Subsystem) (11) is connected to analog and digital subscriber line and relay line, and is responsible for time slot exchange and call processing and ASS body operation maintenance by analog / digital conversion and time division method at the end. do. ASS (11) is functionally one, but at the application stage, ASS-S (analog subscriber), ASS-1 (digital subscriber), ASS-T (trunk), ASS-7 (trunk No. 7), ASS-P (packet ), And the combination of the various forms with the previous five forms.

The Interconnection Network Subsystem (INS) 12 is responsible for message communication between the ASS 11 or between the ASS 11 and the Central Control Subsystem 13. Located in Up to 60 ASSs (11) can be connected by optical fiber, and the space switching function is responsible for the network.

The CCS 13 is a subsystem responsible for overall operational integrity, and is responsible for system operation, test and measurement, statistics and mass storage management, various input / output device control, and data channel connections with other systems.

The target for implementing an even call distribution service in a narrowband integrated telecommunications network switching system having such a hardware structure is an INS 12. Provides service by modifying only PBXC (Private Branch Exchange Control) block that performs representative number control for service.

2 is a flowchart of a general representative number local call control procedure.

The main software blocks required for the representative number uniform call distribution incoming signal processing are analog subscriber control (ASC), digital subscriber control (DCC), number translation control (NTR), and representative number control (PBXC).

The number translation control (NTR) and representative number control (PBXC) blocks are mounted on the INS 12 and the remaining blocks are mounted on the ASS 11. The various request and response messages sent to the representative number subscriber are delivered to the representative number control (PBXC) block, and the representative number control (PBXC) block examines each message and performs processing according to the message content (request).

When the digital subscriber control (DCC) block receives a SETUP message from the digital originating subscriber, it checks whether the requested call is speech, obtains the called number, and requests the station number translation to the number translation control (NTR) block (PrfxTransRQ). Receive IntCallRP from the Number Translation Control (NTR) block.

Then, when the calling digital subscriber control (DCC) block makes the called party number translation request (CdNoTransRQ) to the number translation control (NTR) block, the number translation control (NTR) block recognizes that the called number is the representative number and controls the representative number ( PBXC) blocks the incoming call request (PbxTermRQ). The Representative Number Control (PBXC) block then selects the incoming line (choose one from Hunting-Sequential, Line, Equal) to make incoming occupancy requests (DigPbxCdSzRQ, PbxCdSzRQ).

Incoming Digital Subscriber Control (DCC) Block Incoming Digital Subscriber Control (DCC) block makes outgoing information request (DigCgInfoRQ). In outgoing call, it connects voice switch (time switch, space switch) and sends the attribute value of telephone call to incoming call. DigCgInfoRP), and the called digital subscriber control (DCC) block notified of the originating information sends a call setup message by sending a setup message to the called subscriber.

The Incoming Digital Subscriber Control (DCC) block then receives an ALERT and CONNECT message from the Incoming Subscriber, and in response to the Outgoing Digital Subscriber Control (DCC) block (DigCdAnsRP) enters the call state.

In a call state, the call release can be released by any of the originating and receiving subscribers first.The originating digital subscriber control (DCC) block receiving the release notification from the subscriber releases the release (DigCgReIRP) to the counterpart digital subscriber control (DCC) block. The PBXC block notifies the PbxReIRQ message to complete the call release.

What has been mentioned so far is that if applied to the Open System Interconection 7-layer model, it belongs to the 3 tier, and the 3 tier PBXC block is modified without modifying the 2 tier or less entity (hardware, software). The purpose of this paper is to propose a method for equal number distribution service.

3 is an overall flowchart according to the present invention.

The process for providing the uniform number distribution service can be divided into the main number incoming request, hunting (UCD), incoming call request notification, and the main number call release notification.

When an originating subscriber makes a call to a representative number (SETUP, PfxTransRQ, CdNoTranRQ), the number translation control (NTR) block is notified of the request for handling the representative number call forwarding to the representative number control (PBXC) block that manages the representative number (PbxTermRQ). (31). The representative number control (PBXC) block receiving the call forwarding request checks the received information and performs the corresponding hunting process (32).

Thereafter, it is determined whether the processor is overloaded or the line is blocked (33). If the processor is overloaded or the line is blocked, the hunting process 32 is repeated.

If the representative number control block (PBXC) determines an individual line in the representative number group, it is confirmed that the state of the ASS 11 that manages the individual line is not abnormal (overload, etc.), and the subscriber line usage state is busy. Transition and make a request for incoming subscriber occupancy (DigCdSubsSzRQ) (34).

If a calling or called party releases a call after a call call (CONN, DigCdAnsRP), the corresponding subscriber control (DCC) block notifies the representative number call release (PbxReIRQ) to the representative number control block (PBXC) (PbxReIRQ). The line state information is changed to dormant (35).

4 is a detailed flowchart of an even call distribution hunting process according to the present invention.

Uniform call distribution hunting is designed to approach the average of the total number of incoming calls divided by the total number of lines for each line belonging to the representative number.

1) Manage incoming occupancy table.

2) Manage a list of ascending sequences for the minimum number of occupations.

When the hunting request occurs in the above-described premise, first select the idle line with the lowest number of occupancy in the table (41). It is determined whether the selected line is busy (42), and if it is busy, the next lowest value line is selected to determine whether the busy line is busy (43).

If the selected line is not in a call, it is determined whether there are a plurality of selected lines (44). If there are a plurality of lines, a process of selecting the first line appearing after the last selected line by applying a line method among the lines of the same value (45) Further, if not, the number of incoming calls is immediately increased by 1 and the incoming occupancy lowest value list is sorted (47).

Thereafter, after storing the selected line as the next line (47), it is determined whether the previously selected line is in a call (48), and if not in a call, returns, and if the call is busy, allocates the next line and repeats from the beginning (49).

For example, in the group table at any of the above times, the circuits with the lowest occupancy value are indexes 1 and 3, while the idle circuits are index 3, and the number of incoming calls is 2. If the number of incoming calls on the index 3 line is 2, it is assumed that the CURRENT POSITION is the index 1, and the index 3 is selected by applying the circuit method among the indexes 3 and 4. In this way, line hunting is performed, and the occupancy distribution between lines becomes close to the average value by occupying a relatively rested line.

If the CURRENT POSITION line is busy during the incoming call processing, allocate a reserved position and decrease the number of incoming occupancy for the CURRENT POSITION by 1 and lower the minimum value. After reconstructing the occupancy list, rehunt in the manner described above to obtain a reserve line.

The present invention as described above has the effect of preventing a phenomenon in which an equal number of calls are generated on each line so that the distribution of occupancy of each line belonging to the representative number group is concentrated on an unspecified line.

Claims (3)

A representative number equal call distribution method applied to a switching system, comprising: a first step of determining whether a processor is overloaded or a line is blocked after checking a received information and performing a corresponding hunting process when a representative number incoming call processing request is received (31 to 33); A second step of repeating from the hunting process of the first steps (31 to 33) if the processor is overloaded or the line is blocked as a result of the determination of the first steps (31 to 33); And a third step (34,35) of determining the individual line in the representative number group and notifying the representative number call release when the call is released after requesting occupancy of the called subscriber if it is not overloaded, as a result of the determination of the first steps (31 to 33). Representative number uniform call distribution method comprising a). The method of claim 1, wherein the hunting process of the first steps (31 to 34) comprises: a fourth step (41, 42) of determining whether a call is selected by selecting a idle line having the lowest number of occupancy when a hunting request occurs; As a result of the determination of the fourth step (41, 42), if the call is selected, the fifth step (43) is repeated from the step (42) of determining whether the call is in the fourth step (41, 42) after selecting the next lowest value line. ); And a sixth step (44 to 49) for storing the next line if the selected line is not in a call and assigning the next line if the selected line is in a call as a result of the determination of the fourth step (41, 42). Representative number uniform call distribution method characterized in that. The method as claimed in claim 2, wherein the sixth step (44 to 49) comprises: a seventh step (44) for determining whether there are a plurality of selected lines; As a result of the determination in the seventh step 44, if a plurality of lines have the same value, the line method is applied to select the first line appearing after the last selected line, and then the number of incoming calls is increased and the incoming call occupancy lowest value list is reconstructed and selected. An eighth step of storing the line as the next line and then determining whether the pre-selected line is in a call and returning the call if not in a call, allocating the next line and repeating the operations from the fourth step (41, 42). 45 to 49); And as a result of the determination in the seventh step 44, if the number is not plural, increase the number of incoming calls, reconstruct the incoming occupancy lowest value list, store the selected line as the next line, and determine whether the selected line is busy. Or returning, and assigning the next line if in a call, and performing ninth steps (46 to 49) which are repeated from the fourth step (41, 42).