KR0152394B1 - Switch control method for line reconstitution by mobile communication exchange - Google Patents

Abstract

The present invention relates to a control method of a switch for reconfiguring a path in a mobile communication switch, which enables reconfiguration of a path to a predetermined call in a mobile communication switch through another internal switch resource. In a mobile communication exchange in which a communication path has already been formed, a request is made to assign a reference number to a path for the same time slot from a block that manages various resources and switch resources of the mobile communication exchange and configures a path. Releases the existing switch information according to the first step, the second step of storing switch information according to a request of path reconfiguration after performing the first step, and the switch connection of path reconfiguration according to the stored switch information of the second step And a third process of cutting the currency path by By assigning a reference number and managing the switch information of the internal channel easily and efficiently by the assigned reference number, it is possible to easily manage the call path in the exchange.

Description

Switch Control Method for Path Reconfiguration in Mobile Switching System

1 is a basic structural diagram of a mobile communication switch according to the present invention.

2 is a flowchart of a call procedure for path reconstruction made by applying the present invention.

3 is a flowchart illustrating a path control method according to an embodiment of the present invention.

4 is a control flow diagram showing in detail the reference number assignment process when requesting the reference number assignment of FIG.

FIG. 5 is a flow chart illustrating in detail the process of reconstructing a path when the path reconstruction request of FIG. 3 is requested.

FIG. 6 is a flow chart illustrating in detail the process of releasing and connecting the switch during the path reconfiguration of FIG.

7 is a view showing a connection state of the switch during the path configuration and reconstruction according to the present invention.

* Explanation of symbols for main parts of the drawings

11,11 ': Match Exchange Subsystem (ASS) 12: Network Match Subsystem (INS)

13: Central Control Subsystem (CCS) 14: Location Register Subsystem (LRS)

15: Operational Preservation Subsystem (AMS)

The present invention relates to a control method of a switch for reconfiguring a path in a mobile communication switch. In particular, the present invention provides a method for easily and efficiently switching a switch resource of a set call path in a mobile communication switch to another specific internal switch resource. The present invention relates to a switch control method for reconfiguring a path in a mobile communication exchange.

In general, a mobile communication switch has a function of reconfiguring a path to switch to another internal switch resource and check a call path as a means for testing an internal switch resource.

In a mobile communication switch having a function of such a path reconfiguration, in particular, a path reconfiguration between a fixed subscriber and a mobile subscriber connected to a public telephone network in a public switched telephone network (PSTN) connected to a mobile communication system network is desired by an operator. This is done through two switch information for the subscriber line or the relay line of the fixed subscriber.

That is, one of the two switch information provided for one line forms a normal path, and the other switch resource is switched in case of testing a switch resource of the normal path or when a problem such as disconnection of the normal path occurs. As a spare switch for use, it is switched to one of the two switches as needed.

However, two data areas are always required for the two switch information set in the same line, and the storage of the switch information for each time slot not only causes a waste of memory but also the two switch information. If exceeded, there was a problem in that switch information could not be accommodated.

An object of the present invention for solving the above problems is, by assigning a plurality of reference numbers for one line and by managing the switch information of the internal channel easily and efficiently by the assigned reference number in the call in the exchange The present invention provides a switch control method for reconstruction of a path in a mobile communication switch that can easily manage a network.

A feature of the present invention for achieving the above object is that, in the mobile communication switch exchange path is already formed by the configuration of the path between the mobile subscribers, in the same time slot from the block responsible for the configuration of the path by the operator A first step of requesting to assign a reference number to a path for the second path; a second step of storing switch information according to a request for reconstruction of the path after the first step; and a path according to the stored switch information of the second step And a third process of releasing the existing switch information according to the switch connection of the reconfiguration and transmitting the call path.

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

1 is a basic structural diagram of a mobile communication switch of a mobile communication system to which the present invention is applied, and the mobile communication switch 10 includes a registration between a subscriber and a relay line, a time switch, various signal devices, a transmitter match, and the like. Two matched exchange subsystems (hereinafter referred to as ASS (Access Swiching Subsystem)) that perform a call processing function and a self-operating correction function to have a horizontally distributed structure, one for outgoing and one for incoming. (11, 11 '), and the overall operation and maintenance of the system, as well as system-wide maintenance, testing and measurement, billing, statistical functions as well as large storage devices such as magnetic tape and hard disk Control management, operator control and various input and output door control functions from each sales window, and information communication system that automatically calls the operator in the event of a failure. A control subsystem (hereinafter referred to as a Central Control Subsystem) 13 and a centrally located system between the ASS (11, 11 ') or between the ASS (11), (11') and the CCS (13) It performs the function of connecting, and is largely composed of a network matching subsystem (hereinafter referred to as INS (Interconnection Network Subsystem)) (12) in charge of switch control, number translation, and routing functions for calls between ASS.

The ASS (11, 11 ') is a MCT that receives and processes data from the Local System Library (LSL) (1a), (1a') for managing various resource management and switch resources and the table management and operator terminal required for routing (Mobile Call Trace) 19, 19 '.

The INS 12 is an NTP (Number Translation Processor) 16 which is in charge of number translation and Touring functions, and an INP (Interconnection Network Processor) 17 which switches and controls the call between the ASS 11 and the ASS 11 '. )

The CCS 13 is a location register subsystem (hereinafter referred to as LRS (Location Register Subsystem)) 14 which performs information management, location registration, authentication functions, etc. of mobile subscribers, and a comprehensive operation management function and system of the system. It consists of an operational maintenance subsystem (hereinafter referred to as AMS (Administration and Maintenance Subsystem)) 15 which is responsible for the maintenance, statistics, billing and measurement functions of the dimension.

In addition, the AMS (15) is an OMP consisting of an Execution Control (EC) 1b, a processor that executes data received from an operator terminal, and a Trace and Observation Management (TOM) 1c, which executes commands related to tracking and monitoring. (Operation and Maintenance Processor) 18 is configured.

2 is a flow chart of a call when reconfiguring a path in a mobile communication exchange of the present invention having the above configuration, in which a path is formed between the subscribers by a mobile communication exchange and a call path is formed. A command signal is specified from the EC (1b) of the OMP 18 to the TOM (1c) to designate a ruler or a line and select internal switch resources to confirm that the call path can be reconfigured through a new switch channel between subscribers.

(21).

The TOM 1c, which has received the command signal in step 21, requests 22 a path reconfiguration from the MCT 19 of the corresponding outgoing ASS 11, and performs the MCT ( 19 calls the library from LSL 1a to request that a new path reference number be assigned to the same line (23).

At this time, the method of managing the data for each slot of the method of setting the two paths described above has a disadvantage in that each data area for each time slot has a disadvantage that the switch management function is designed based on the reference number in the present invention. As a result, it has an appropriate data area for each reference number, so that it is possible to easily control the connection of the switch only by knowing the reference number for each time slot.

As the calling party reference number is assigned by step 23, the calling MCT 19 requests the MCT 19 'of the called party ASS 11' to be assigned a reference number for the new path. do.

Subsequently, the called party's MCT 19 'calls the library from the LSL 1a' and assigns a reference number (25).

The reference number assigned in the step 25 is transmitted to the MCT 19 of the calling party 26 to be used when connecting the switch.

According to the reference number response of step 26, when the calling MCT 19 calls the library for setting up the path reconfiguration from the LSL 1a to connect the switch, the LSL 1a switches that request the path setting. It is determined 27 whether the channel is an available channel.

As it is determined that the switch channel outputted from the step 27 is an available channel, the MCT 19 of the calling party sends 28 switch information to the MCT 19 'of the called party so as to connect the switch. .

According to the request of the step 28, the switch 29 of the reconstruction path, which is a new path, is disconnected (2a) of the existing call path, and at the same time, the switch for reconfiguration of the new path is connected to the called party. 2b) and cut (2c) the existing path.

After performing step (2c), when receiving a response signal for reconstructing the path from the called MCT 19 'to the calling MCT 19 (2d), the calling MCT 19 receives an operator terminal. It outputs a signal (2e) to the EC (1b) of the OMP 18 to inform that the new path of the call path is configured.

As a result, it is possible to form a new path through the easy management of the switch resources according to the reference number, the normal call is made without deterioration of the call state between the mobile subscribers through the new path.

FIG. 3 is a flow chart of overall control of path reconfiguration in a mobile communication switch according to an embodiment of the present invention, and shows a flowchart of each library call in LSL (1a, 1a ') of FIG.

The LSL (1a, 1a ') in the idle state waiting for a call of the library receives a request for assigning a reference number of a path to the same time slot from the MCT 19 in charge of path construction (31).

According to the reference number assignment request of step 31, a reference number is allocated 32 as additional information about an existing time slot, and in this case, the MCT 19 stores switch information for each reference number and Manage as separate information.

When the step 32 receives the switch connection request of the path reconfiguration from the originating MCT 19 (33), it is determined whether the switch channel input from the operator is available (34), and If it is determined in step 34 that the switch channel for path configuration is available, switch information is stored 35 and a success response signal is output 36.

If it is determined in step 34 that the switch channel is unavailable, a failure response signal is output (35 ').

In response to the success response signal of the step 36, the new path configuration switch 37 is connected, the existing switch information is released 38, and the existing call path is cut 39.

If the channel state is already occupied, the call is terminated by outputting a failure response.

Referring to the control flow chart of the present invention as described above with reference to FIGS. 4, 5, 6 again as follows.

FIG. 4 is a control flowchart showing the allocation process when requesting the reference number assignment of steps 31 and 32 of FIG. 3 in detail. When the reference number assignment request 41 is received from the block of the path configuration, that is, the MCT 19, FIG. It is determined 42 whether one or more reference numbers are already assigned to the line.

In this case, in the present invention, the reference number is an index of the switch resource management, and one line is designed to have a plurality of reference numbers, except that a traffic form requiring the reference number is required to add a service to the line. It is assumed on the condition.

Next, if it is determined from step 42 that one or more reference numbers are already assigned to the corresponding line, it is determined 43 whether the traffic type required by the reference number is service addition or service addition.

If it is determined from step 42 that no reference number is assigned to the line, or if from step 43 the traffic type is determined to be a service addition, then a reference number is found and an available reference number is assigned 44.

At this time, the management of the reference number in the present invention is made by managing the available reference number as an entry, so that the reference number with the entry point of the entry is assigned and removed from the entry.

As the reference number is assigned 45 by the step 44, the number of reference numbers for the same line is increased by one.

Finally, when a reference number is assigned, a success response 49 is output to the MCT 19, which is a control block that calls the library.

On the other hand, if it is determined from the step 43 that the traffic type is not the addition of a service, the release of all the assigned reference numbers is canceled (48) since it is not released in the previous step.

A reference number assignment failure response 49 is output in accordance with the reference number release signal of step 48, and the output of step 49 switches to a standby state in which all states are origins.

FIG. 5 is a detailed control flow diagram illustrating a process of reconfiguring paths in steps 33, 34, 35, and 36 of FIG. 3, and when receiving a path reconfiguration request 51 from the control side, an outgoing subscriber exchange processor (hereinafter referred to as ASP The same ASP can be processed by one processor, but in the case of another ASP, the idle channel information must be obtained from the INP at the INS. to be.

If it is determined from step 52 that the same ASP is the case, it is determined whether the requested switch channel value is greater than 1024 and smaller than the maximum value (53). From step 53, the channel value is greater than 1024 and greater than the maximum value. If it is determined to be small, the switch information is stored (54). If it is determined from step 53 that the switch channel is not in the area, a failure process 53 'is performed.

Following the switch information storage of step 54, the call returns to the same ASP.

On the other hand, if it is determined from the step 52 that the incoming ASP and the outgoing ASP are different ASPs, it is determined whether the switch channel is greater than or equal to 0 and less than 1024 (56).

If it is determined from step 56 that the channel value is greater than or equal to 0 and less than 1024, the switch information is stored 57, and if it is determined that the switch channel value is not in the area, a failure process 53 'is performed.

As a result of performing the step 57, a switch connection request 58 for a path configuration is requested to INP, and at the same time, a control 59 returns a call between different ASPs.

FIG. 6 is a control flow diagram illustrating the release and connection of the switch during the path reconfiguration of the steps 37, 38, and 39 of FIG. 3, wherein the control side receives the switch connection response from the called party. The connection request 61 is made.

According to the connection request of the step 61, the connection between the caller and the caller is connected (62), and the cutting request is sent to the existing call (63), and it is determined whether or not a reference number is assigned to the call path (64). do.

If it is determined from step 64 that the reference number has already been assigned, it is determined whether the reference number is the calling party or the called party 65, because the extraction side manages the connection of the switch.

On the other hand, if it is determined from step 64 that a reference number is not assigned, a failure processing response 64 'is output.

If it is determined from the step 65 that the assigned reference number is the called party, only the switch information of the own processor is released (66). If it is determined that the reference number is the calling party, calls between ASPs having the same call path type or between different ASPs are called. Awareness is judged (67).

If it is determined from step 67 that the call path type is a call between the same ASPs, the call information is released (68) because the calling and incoming switch information is in one processor, and the call path type is changed from step 67. If it is determined that the call is between different ASPs, the signal for requesting release of the route configuration switch information is sent to the INP (69).

When the existing call path is disconnected according to the removal of the existing switch information of the steps 66, 68, and 69, the state between the subscribers is in a call and a normal call is possible.

Finally, Figure 7 shows the path of the call path through each switch connection in the configuration and reconstruction of the path according to the present invention, shows the state of the configuration of the path of the call path between the A line and the B line between the ASS.

Lines A and B have two paths through the ASS (11, 11 ') and INS (12) for incoming and outgoing calls.

That is, the path of the path configuration of the dotted line a already established between the subscribers is switched to the call path of the reconfigured path of the solid line b by the internal switch resources reallocated at the request of the operator, and then the existing dotted line ( The channel of a) is cut off.

As described above, the present invention assigns several reference numbers to one line and manages each switch information by the reference numbers, so that the paths to the multiple calls that can be switched to other internal switch resources even after the path setting are made. The advantage is that it is fairly easy to manage.

Claims (6)

A mobile communication switch in which a communication path has already been formed by a path configuration between both subscribers, the mobile communication switch comprising: a first step of being requested by an operator of the mobile communication switch to assign a reference number to a path for the same time slot from the MCT; A second step of storing switch information according to a request for path reconfiguration after the first step; And a third process of releasing existing switch information and cutting a call path according to a switch connection of another reconfiguration to the stored switch information of the second process. Control method. The method of claim 1, wherein the first step comprises: a first step of determining whether one or more reference numbers are already assigned to a corresponding line according to a reference number assignment request from an MCT; A second step of determining whether a traffic type required by the reference number is a service addition or a service addition if it is determined that at least one reference number is already assigned to the corresponding line from the first step; A third step of finding a reference number and allocating a usable reference number if it is determined that no reference number is assigned to the line from the first step or if the traffic type is determined to be a service addition from the second step; A fourth step of allocating a reference number by performing the third step and outputting a reference number assignment success response by increasing the number of reference numbers for the same line by one; And a fifth step of outputting a failure response by releasing the reference number if it is determined from the second step that the traffic type is not adding a service. 2. The method of claim 1, wherein the second process comprises: a first step of determining whether an originating subscriber switching processor and a called subscriber switching processor are identical according to a path reconfiguration request from a control side during the execution of the first process; A second step of determining whether a channel value falls within a predetermined threshold range if it is determined that the originating subscriber switching processor is the same subscriber switching processor from the first step; A third step of storing the switch information and returning a call between the same subscriber switching processors when it is determined from the second step that the switch channel value falls within a threshold range; A fourth step of determining whether the channel value falls within a predetermined threshold range when it is determined that the calling party switching processor and the called subscriber switching processor are different subscriber switching processors from the first step; A fifth step of storing the switch information and requesting a switch connection for reconfiguration of a path to a connection network processor when the switch channel value is determined to be within a threshold range from the fourth step; If it is determined that the switch channel value is out of a predetermined threshold range from the second step and the fourth step, the switch control method for reconfiguring a path in the mobile communication switch is performed. . 4. A route reconfiguration in a mobile communication exchange according to claim 1 or 3, wherein the predetermined threshold range of the switch channel value in the second step of the second process is greater than 1024 and less than the maximum value. Switch control method for 4. A path in a mobile communication exchange according to claim 1 or 3, wherein the predetermined threshold range of the switch channel value in the fourth step of the second process is greater than or equal to 0 and less than 1024. Switch control method for reconfiguration. The method of claim 1, wherein the third process comprises: a first step of requesting connection of a switch allocated for reconfiguration of a path when the control side of the second process receives a switch connection response from the called party; According to the connection request of the first step, the second step of connecting the switch between the incoming and outgoing, and request to cut the existing communication path; Determining whether or not a reference number is assigned to the cut-out requested call path; A fourth step of determining whether the reference number is a calling party or a called party when it is determined from the third step that the reference number is already assigned to the call path; A fifth step of failing if it is determined from the third step that a reference number is not assigned to the call path; A fifth step of releasing the switch information if it is determined from the fourth step that the reference number is assigned to the called party; A sixth step of determining whether a reference number is assigned to the calling party from the fourth step, whether the call is between calls of subscriber switching processors of the same channel type or between different subscriber switching processors; A seventh step of releasing the switch information and disconnecting the call path, when it is determined from the sixth step that the call is between call exchange types having the same call path type; If it is determined from the sixth step that the call is between call exchange types having different call path types, the eighth step of requesting the network processor to release the switch information for path configuration to release the switch information and then cutting the existing call path is performed. Switch control method for the path reconfiguration in the mobile communication switch, characterized in that the.