KR100292061B1 - Trunk Allocation Method in Switching System - Google Patents

Abstract

The present invention relates to a trunk allocation method in a switching system, and in particular, when several communication providers share a common use of the switching system, a switching system is configured to provide a call service by differentially allocating trunks for respective carriers or wireless subscribers. It is about trunk allocation method in.

In the conventional switching system, only a preset trunk group is allocated regardless of the number of subscribers, the frequency of communication of each communication provider, or the status of subscriptions of additional services of each subscriber. have.

According to the present invention, when a plurality of carriers are jointly used by one operator, the trunk system performs call processing by differentially allocating trunks for each operator or wireless subscriber in the switching system, thereby effectively using trunks in the operator. And call processing efficiency is improved.

Description

Trunk Allocation Method in the Switching System

The present invention relates to a trunk allocation method in a switching system, and in particular, when several communication providers share a common use of the switching system, a switching system is configured to provide a call service by differentially allocating trunks for respective carriers or wireless subscribers. It is about trunk allocation method in.

Conventionally, when performing the service processing performed in the switching system, it is configured to perform differential processing based on the caller group belonging to each communication service provider, and the call processing, the relay line connection, and the announcement broadcast are processed separately for each caller group. That is, when a call originates from a caller, it checks which subscriber group (the subscriber of which carrier) the caller is connected, and relay line connection, announcement, billing format, statistical format, supplementary service and network operation provided for the subscriber group. It is configured to check the overall data and the like from a predetermined data table and perform differential processing.

The joint utilization processing operation of the exchange system is performed in the same order as in FIG.

First, when a call is generated from a caller to make a call to a mobile and wired subscriber (step S11), the switching system receives a called number for the mobile and wired subscriber from the caller (step S12) and then makes a call to the caller. Group belonging is recognized (step S13).

Then, the exchange system executes the authority check on the caller to determine whether the authority check fails (step S14), and if the authority check on the caller does not fail, the exchange system sends the caller from a predetermined table. It is confirmed whether a specific announcement broadcast is added to the group (step S15).

At this time, if it is determined that the announcement is not added to the group to which the caller belongs, the switching system connects a trunk group preset for the group to which the caller belongs from a predetermined table (step S16). If it is confirmed that the announcement is added to the group to which the group belongs, the switching system connects the specific announcement to the caller (step S21), and then connects a trunk group preset for the group to which the caller belongs from a predetermined table. Perform the operation of S16.

After that, the switching system translates the called number received from the caller (step S17), recognizes the connection type for the caller from the predetermined data table (step S18), and then processes the call processing for the translated called number. The caller is connected to the called party through the connected trunk group by performing (step S19).

On the other hand, in step S14, if the authority check for the caller fails, after translating the called party number of the customer information center assigned to each caller group from the predetermined data table (step S20), the call processing operation of step S19 is executed. By performing the call processing on the forwarding number of the translated customer information center, the caller is informed that the caller cannot connect to the customer information center and make a call.

As described above, conventionally, when a call is generated from a caller, the caller is identified to which subscriber group (which carrier of which carrier) and the relay line connection, announcement, and network operation data provided for the subscriber group. The differential processing is performed by checking from a predetermined data table, so that a single exchange system can be used jointly by several communication providers.

However, conventionally, there is no method of selecting a trunk group, which is a resource in the switching system, by assigning a trunk group to a wireless subscriber group or a carrier and selecting subscribers belonging to different subscriber groups or carriers when the same number is called. That is, the prior art specifies only one specific trunk group for one network identification number (for example, 016, 018, 019, etc.) or suburban area code (for example, 02, 032, 0418, etc.) necessary for routing, so that the exchange Since there is no method to designate a trunk group, which is a resource in the system, for each wireless subscriber group or service provider and use it separately, there are disadvantages that a lot of incomplete calls are generated at a time when a lot of calls are required.

As described above, in the conventional switching system, only a preset trunk group is allocated regardless of the number of subscribers, the frequency of communication of each service provider, or the status of subscriptions of additional services of each subscriber. This is a bad problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object thereof is to provide a trunk by differentially allocating trunks for each carrier or wireless subscriber in the exchange system. By performing call processing, it is possible to improve trunk use efficiency and call processing efficiency in the corresponding switching system.

A feature of the present invention for achieving the above object is a trunk allocation method in a switching system comprising: receiving a called number when a call is generated and translating a network identification number or a long distance area code portion; Checking whether the calling subscriber is included in a specific calling group and selecting a specific key value corresponding to the translated number; Calculating an index for searching a trunk allocation table for each originating group using the specific key value and specific originating group information; Checking whether an error is detected in the calculated index, searching a trunk allocation table for each calling group, and selecting a specific trunk of a specific trunk group assigned to the calling subscriber; Translating the called number and performing a call processing operation according to the connection type of the calling subscriber to connect the calling subscriber with the specific trunk to provide a call service.

1 is an operational flow diagram for implementing a method of joint use of a conventional exchange system.

2 is a block diagram illustrating a configuration of an exchange system according to the present invention.

3 is an operation flowchart for implementing a trunk allocation method in a switching system according to the present invention;

Explanation of symbols on the main parts of the drawings

21: wireless access switching processing unit 22: location registration processing unit

23: number relay processing section 24-1 ~ 24-n: trunk connection switching processing section

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

As shown in FIG. 2, the configuration of the switching system according to the present invention includes a wireless access switching processor 21 (Access Switching Processor-Wireless), a location registration processor (22) and a number relay processing unit. (23; Number Translation Processor) and a plurality of trunk connection switching processing units (24-1 to 24-n; Access Switching Processor-Trunk).

The wireless access switching processor 21 connects the wireless subscriber to perform a switching function for signals input and output to and from the wireless subscriber, and the location registration processor 22 registers information on the wireless subscriber included in the corresponding switching system.

The number relay processor 23 analyzes the called number from the wireless subscriber to select a specific trunk of a specific trunk group, and each trunk connection switching processor 24-1 to 24-n selects a specific trunk assigned to each wireless subscriber. Switch.

In the switching system according to the present invention configured as described above, each originating group is generated according to the number of wireless subscribers of each service provider or the status of subscription of additional services of each wireless subscriber, and each trunk of the trunk group is differentially generated for each calling group. When a trunk allocation table for a specific originating group is generated and stored in the number relay processing unit 23 so as to be allocated and used, the trunk allocation operation in the corresponding switching system is performed in the same order as shown in FIG. 3.

First, when a call is generated from a wireless subscriber of the corresponding switching system, i.e., a calling subscriber and moving to a wired subscriber (step S31), the number relay processor 23 receives a call from the calling subscriber through the wireless access switching processor 21. After receiving the called number (step S32), the network identification number or the area code area of the received called number is first translated (step S33), and the type of number (general number, special number, test) that the number has Number, etc.), and checks whether the corresponding calling party is included in a specific calling group using a specific supplementary service or the like or a specific calling group of a specific communication operator (step S34).

At this time, if the corresponding calling party is included in a specific calling group, the corresponding number relay processing unit 23 selects a specific key value corresponding to the translated network identification number or suburban area code (step S35), and then selects the selected specific key value and the corresponding key. Using the information on the specific originating group, an index for searching the trunk allocation table for each originating group is calculated (step S36).

Then, the number relay processing unit 23 checks whether an error is detected in the calculated index (step S37), and if the error is detected in the index, the number relay processing unit 23 sends the corresponding index to each index group. Since the trunk allocation table cannot be referred to, the announcement is connected to the calling subscriber to inform the call failure, and after the automatic recovery process for the corresponding call (step S44), the operation is terminated.

However, if no error is detected in the corresponding index in step S37, the number relay processor 23 searches the originating group-specific trunk allocation table using the corresponding index (step S38), and the corresponding calling subscriber from the corresponding trunk allocation table. The specific trunk of the specific trunk group assigned to the terminal is found, and thus, the trunk connection switching processing unit corresponding to the specific trunk group selects the specific trunk (step S39).

Then, the number relay processing unit 23 translates the remaining part of the called number received from the calling party (step S40), and recognizes the connection type for the calling party from the predetermined data table (step S41). By performing a call processing operation on the translated called party number, the calling party connects the trunk selected in step S39 to provide call service to the calling party (step S42).

On the other hand, if the corresponding calling party is not included in the specific calling group in step S34, after immediately selecting the trunk group designated by the translated network identification number or suburban area code (step S43), the calling subscriber is performed by performing the operation of step S40. It will provide call service to you.

As described above, the number of wireless subscribers or service providers for each trunk group is set in a state where a trunk group capable of transmitting data to an adjacent power exchange system through each trunk connection switching processing unit 24-1 to 24-n in the switching system is set. It is possible to set up a trunk group that can transmit data using network identification number or long distance code by differentially separating trunks, and select the trunk assigned to each wireless subscriber on the set trunk group to provide call service. Even if the trunk group is set by the network identification number or the local area code, the operator of the switching system may allocate a trunk not included in the trunk group according to the wireless subscriber group or the carrier according to the necessity of network operation. Improve trunk use efficiency and call processing efficiency The.

In addition, when a subscriber (mobile or wired) called by a subscriber (mobile or wired) separated by a wireless subscriber group or a carrier in the switching system calls a trunk resource of the switching system according to the wireless subscriber group or carrier, According to the difference or according to the status of the subscription of the additional service of each wireless subscriber according to the differential, the switching system is divided and assigned to the trunk set by the wireless subscriber group or telecommunications carrier to which the calling party belongs to provide the call service.

In addition, call processing can be performed by selecting a trunk of a different trunk group for each wireless subscriber group or service provider for the same network identification number or long-distance area code. As a result, several communication providers can efficiently share trunk resources of the switching system.

As described above, according to the present invention, when a communication system is jointly used by a plurality of communication providers, the communication system performs call processing by differentially allocating trunks for each communication operator or wireless subscriber in the corresponding switching system. Its trunk usage efficiency and call processing efficiency are improved.

Claims (4)

In the trunk allocation method in the switching system, Receiving a called number and translating a network identification number or an area code area when a call is generated; Checking whether the calling subscriber is included in a specific calling group and selecting a specific key value corresponding to the translated number; Calculating an index for searching a trunk allocation table for each originating group using the specific key value and specific originating group information; Checking whether an error is detected in the calculated index, searching a trunk allocation table for each calling group, and selecting a specific trunk of a specific trunk group assigned to the calling subscriber; Translating the called number and performing a call processing operation according to the connection type of the calling party to connect the calling party and the specific trunk to provide a call service. Way. The method of claim 1, Checking whether the calling subscriber is not included in a specific calling group, and selecting a trunk group designated by the network identification number or the suburban area code, and providing a call service to the calling subscriber. Assignment method. The method of claim 1, The method for allocating trunks in a switching system according to claim 1, further comprising the step of notifying a call failure to the calling subscriber by checking whether an error is detected in the index, and then performing an automatic recovery process. The method of claim 1, The trunk allocation table for each calling group generates a calling group according to the number of wireless subscribers of each communication service provider or the status of subscribing to an additional service of each wireless subscriber, and differentially allocates each trunk of the trunk group to each calling group. Trunk allocation method in the switching system, characterized in that for generating.