KR100204566B1 - D-channel data processing system - Google Patents

Abstract

The present invention provides a data processing structure for the packet D-channel among the data processing functions and a data processing method capable of reliably realizing the structure, thereby synthesizing information between functional blocks distributed by the packet D-channel data processing function, By accurately understanding the hardware status of the system, it is possible to use the appropriate database, and the transaction function in the database is used for the data processing function to increase the reliability of the system and to provide stable packet D-channel service. A de-channel data processing system and a processing method thereof are disclosed.

Description

Transaction-based De-channel Data Processing System in Electronic Switching System and Its Processing Method

1 is a structural diagram of packet processing hardware.

2 is a static path configuration diagram for a D-channel packet.

3 is a configuration diagram of a D-channel data processing apparatus.

4 is a flowchart of a data processing function for a D-channel fixed routing configuration function.

5 is a D-channel transaction processing flow diagram.

* Explanation of symbols for main parts of the drawings

1: Packet Matching Switch Processor (ASP-P)

2: Inter-processor communication bus (IPC BUS)

3: packet call control processor (PLCP) 4: packet bus (P-BUS)

5: packet processing unit (PHM) 301: operation and maintenance processor

302: integrated information network matching switch processor (ASP-I)

305: operator matching processor (MMP) 311: data processor (DHF)

312: Transaction Manager / Database 313: Local Database

The present invention relates to a transaction-based D-channel data processing system and a method for processing the same in an electronic switchgear, and in particular, aggregates information between functional blocks distributed by a packet D-channel data processing function and the hardware state of the system. The present invention relates to a D-channel data processing system and a method of processing the same, which enable accurate use of a database.

The system to which the present invention is applied is a system that accommodates the TDX-10 ISDN (hereinafter referred to as TDX-10 ISDN) function and applies packet service to subscribers.

The TDX-10 ISDN provides B-channel calls by default, and the packet exchange technology is based on the packet basic technology.

The packet switching method is a technology in which a user divides data to be transmitted in block units called packets and sends them to the packet network, and the packet network exchanges them in packet units and delivers them to the destination packet terminal. That is, data to be transmitted is divided into blocks, and a header including destination address information and control information is added to each packet, and then packetized. Packets sent from the originating terminal are accumulated once in the packet switch. The packet switch looks at the address of the called terminal included in the received packet and optimally selects the route to the destination and sends it to the next switch. In this way, the packet is transmitted to the destination exchange, and the exchange receives it and delivers it to the called terminal. In the destination terminal, communication is performed by combining the received packets again in the transmission order.

The packet service supports not only the packet B-packet service of 64Kbps for high speed communication but also the packet D-channel of 16Kbps for low speed communication. Such a packet service is configured such that a subscriber having a packet function can selectively receive a service by implementing a user interface and a function to enable various additional services other than the existing basic packet service. Packet software is composed of call processing and operation preservation software. Data processing function based on real-time distributed database belongs to the latter to perform system verification function for each instruction and to perform reliable data processing function by using transaction function. .

The present invention provides a data processing structure for the packet D-channel among these data processing functions and a data processing method capable of reliably realizing the structure, thereby synthesizing information between functional blocks distributed by the packet D-channel data processing function. It aims to provide reliable packet D-channel service by increasing the reliability of the system by accurately understanding the hardware state of the system and enabling the use of an appropriate database.

Transaction-based D-channel processing system in the electronic switch according to the present invention for achieving the above object is a data processor, a transaction manager / database and a local database is mounted, the operator instructions from the workstation connected to the data processing function An operation and maintenance processor that receives information as a signal and finishes processing or saves it to disk, and a local database that contains the shape and link information of the transaction manager and frame multiprocessor and frame multiprocessor hardware in the database. An integrated information communication network matching exchange processor to be implemented, a packet matching switching processor having a local database including shape and link information of a transaction manager and a channel packet processing device in a database, and the operation and maintenance The processor and the processor for the packet exchange is configured to perform transaction processing through a fixed path for the packet, which is a communication network between the processor, the transaction-based de-channel data processing method in the electronic switchboard is an application program after the process starts Performing a data processing function for a D-channel fixed path setting function according to a transaction start command in an in-packet subscriber data processing block, and performing a plurality of update operations, inserts, and delete operations, and the D-channel fixed path setting function Checking whether an error occurs while performing a data processing function for the data processing, and if an error occurs during the data processing function for the D-channel fixed path setting function, perform an error message by outputting an error message by performing a transaction error command. Terminating the D-channel fixed path; If not, an error during execution of the data processing function for generating a function to perform a transaction termination command to the final value, wherein the step consisting of terminating, save to disk or memory.

Data processing technologies related to the D-channel function among packet services include an integrated information communication network matching exchange subsystem (ASS-I: ASS-I) in which a database related to the packet D-channel function exists. The packet matching exchange subsystem (ASS-P (hereinafter referred to as ASS-P) is made around the present invention, the present invention seeks to relate the information around the established database information of the relation related to The main contents are the composition of data that can be cross-referenced and the function of maintaining consistency using transactions. This paper presents the technology by constructing software to ensure the reliability of the exchange system through the organization and operation of such data.

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

1 is a structural diagram of packet processing hardware. Represents a block diagram of hardware for performing a packet function. At the top, there is a Packet Matching Switch Processor (ASP-P: Access Switching Processor-Packet (hereinafter referred to as ASP-P)) (1) and an inter-processor communication bus (IPC BUS: hereafter referred to as IPC BUS) (2). Manage low-level processors. Packet call control processor (PLCP: hereinafter referred to as PLCP) (3) / Packet processing unit (PHM: hereinafter referred to as PHM) (5) is a packet bus (P-BUS: below) (P-BUS) (4) is a part that proceeds the actual packet call through the connection with other functions to proceed the call processing. The PHM 5 has 8 links on each channel (BDI P channel), and this link is a data processing function (DHP: Data Handling Facility: hereinafter referred to as DHF) (not shown). Is connected to other functions via the time switch 6 and the space switch 7.

2 is a block diagram of a fixed path for a D-channel packet. First and second Frame Multiplex Processors (FMXP) (hereinafter referred to as FMXP) 205 and 206 in ASP-I 204 and the first and second D-s in ASP-P 212. A fixed path that connects a channel packet processing device (PHM-D: hereinafter referred to as PHM-D) 214 through each subsystem connector (INS) in the TDX-10, a time-space-time (TST) switch network. SSW) 209 represents the hardware configuration associated with. ASS-I 201 represents an ASS for accommodating ISDN subscribers. The ASS-I 201 is equipped with an ASP-I 204, a trunk line signal processor (TSP) 207, and a fixed path (TSL) 208, respectively, which are processors for performing D-channel service. 205 and 206 are controlled. The first and second FMXPs 205 and 206 are made of hardware boards 0/1, each of which has an A side and a B side, but each has its own link, not redundancy. For example, there are four links on the FMXPO and A side, and four links on the B side, so all 16 links act as FMXP links.

The ASS-P 203 is equipped with an ASP-P 212, a TSP 210, a PLCL 213, and a TSP 210, respectively, and eight PHMs 214 and 215 of the ASP-P 212 are provided. It has a link. These links will be connected to FMXP at the request of the operator and will have a PHM / FMXP connection structure. This link expresses the connection status as Active / Deactive. The link and system status information are composed and operated as a database, and are stored in a disk after the operation is completed.

3 is a configuration diagram of a data processing function for explaining the D-channel packet data processing function.

An operation and maintenance processor (OMP: hereinafter referred to as OMP) 301 is equipped with a DHF 311 function and a transaction manager / database 312 and a local database 313. (MMP: Man Machine Processor: hereinafter referred to as MMP) The operator command information from the workstation (WS) 304 connected to the 305 as a signal that can be processed directly refers to the relevant database information to terminate the processing The disk 306 is stored in the disk 306.

The ASP-I 302 is equipped with a transaction manager / database 315 and a local database 316 and a relational FMXP 314 having FMXP 307 hardware geometry and link information.

The ASP-I 303 is equipped with a transaction manager / database 318 and a local database 313 and a PLCP 317 having relations with PHM 309 and 310 shapes and link information.

PKDH 320, a packet data processing block in OMP 301 based on relations in local databases 316 and 319 for shape and link information distributed within ASP-I 302/303, is a D-channel. Set up a link between PHM / FMXP 308/314 for a packet call.

The DHF 311 in the OMP is a set of data processing blocks and performs operation data, initial data, and system data setting functions for call processing, operation maintenance functions, and the like. Operation request control block (ORC: ORC) 321 for voice function processing, ISDN subscriber data processing function block (ISDH: ISDN) for processing ISDN function 322, S7DH (Singalling No. 7 Data Handling block: S7DH) (323), packet subscriber and packet subscriber for service A data processing function block (PKDH: packet data handling block: PKDH) 320; The basic data processing method is to receive a signal from the operator (WS) 304 connected to an operator matching processor (MMP) 305 as an operator command information and perform direct processing. Processing is terminated with reference to the information and stored in the disk 306. The information inputted into the directory number (DN) is checked for the status of the DN implementation, and the line status is checked through the TDMH (Telephony Device Maintenace Handling Block), and the ASP (Access) belonging to each ASS (Access Switching Subsystem). After checking the call status of Switching Processor, it is configured to take action such as information change or line addition / deletion. This change in data has a direct impact on call processing and operational preservation. The organization and processing of the data is responsible for managing these important data appropriately for each function in connection with the call processing and operation preservation functions. Performance of data processing functions for subscriber information and PLCP 317 and PHM 308 shape information for providing packet services is based on PKDH 320, which is a packet processing block of DHF 311 mounted in OMP 301. As a result, the local database (LDB-I / P) 316 and 319 mounted in the ASP-P 303 and the ASP-I 302 is terminated by directly changing and associated with the data at the time when the data is changed. It is divided into functions that signal the information that the function has been changed.

The LDB-P 319 managed by the ASP-P 303 has a relation having PHM 309 and 310 shapes and link information, and the FMDB 314 is provided in the LDB-I 316 of the ASP-I 302. ) There is a relation with hardware geometry and link information. PKDH 320, which is a packet data processing block in OMP 301 based on relations in local databases 316 and 319 for shape and link information distributed within ASP-I / P 302/303, is a D- Set up a link between PHM / FMXP 308/314 for a channel packet call. Since ASP-I / P (302/303) is distributed locally, execution may be stopped due to various reasons such as inter-processor communication (IPC) failure or database (DB) call failure during link establishment. . For example, after completing an update operation on a relation of LDB-I 316 that has FMXP 314 link information of ASP-I 302, the semantically associated PHM 308 link of ASP-P 303 is completed. When attempting to perform an update operation on a relation of LDB-P with information, the ASP-I 302 and the ASP-P 303 must be connected to each other if they are interrupted due to a serious error in the system. The setup function will fail, and the two databases will have different values, resulting in inconsistent data. When this happens, all the data that has been operated so far must be restored to the data value before execution. For this purpose, transaction processing is performed, and for this purpose, a transaction manager (TM) in each DBMS 312, 315, and 318 manages the performance of transactions so that relations in distributed subsystems can be atomic.

4 is a flowchart of a data processing function for a D-channel fixed routing function.

If the data change function starts to be performed in step 401, the process proceeds to step 402 to determine what type of link is. In step 402, if the link type is not the D-channel, the routine proceeds to the routine step 403 for processing the B-channel and the T-channel, and in the case of the D-channel, the flow proceeds to step 404. do. In step 404, it is determined whether the state of the integrated information communication network matching exchange processor (ASP-I) is normal. If abnormal, the method proceeds to step 405 to clearly notify the error, and then the process proceeds to step 406. Will end. If the state of the general information communication network matching exchange processor (ASP-I) is normal in step 404, the process proceeds to step 407 to check whether the state of the packet matching exchange processor (ASP-P) is normal. If the state of the packet matching exchange processor (ASP-P) is abnormal in step 407, the process proceeds to step 408 to clearly inform about the error, and then proceeds to step 409 to end the execution. If the state of the packet matching exchange processor (ASP-P) is normal in step 407, the flow proceeds to step 410. In step 410, after checking for these, it is checked whether the input parameters are bonded to the process. If it is not suitable for the process in step 410, the process proceeds to step 411 to clearly inform about the error, and then proceeds to step 412 to end the performance. If it is appropriate to the process in step 410, the process proceeds to step 413 to determine whether the change target tuple exists. If the tuple does not exist in step 413, the process proceeds to step 414 to clearly inform about an error, and then the process proceeds to step 415 to end the execution. If there is a tuple in step 413, the process proceeds to step 416 to configure information for data input, and then proceeds to step 417 to perform a database update or insert and proceed to step 418. In step 418, if it is determined that the database execution is normally completed, if an error occurs, the process proceeds to step 419 and the process proceeds to the step 420 in which the error processing is performed, and ends in step 418. If the execution is normal, the process proceeds to step 421 to output a normal change situation, and then the process proceeds to step 422 to end the execution.

5 is a flow diagram of a D-channel transaction processing. This includes the process of FIG. In order to process distributed data as a single transaction, the execution order specified in FIG. 5 should be followed. Transaction information is produced as processor loaded data (PLD) registered off-line, and can be read between the start of transaction and the end of transaction (BEGIN_TRN ~ END_TRN) command after the process starts. . This is a static transaction structure for a real time environment.

After the process starts from the start step 501, the process proceeds to step 502, where the packet subscriber data processing block (PKDH), which is an application program, a packet data processing block, uses the Start Transaction (BEGIN_TRN) command to indicate the start of a transaction. You will be informed that the transaction will be applied. Subsequently, the process proceeds to step 503 to perform a data processing function for the D-channel fixed path setting function and to perform a plurality of update operations, insert operations, and deletion operations. Thereafter, the process proceeds to step 504 to check whether an error occurs during execution. If an error occurs in step 504, the process proceeds to step 505, using the command of the transaction error (UNDO_TRN), to recover the (LOG) information to the (OLD) value and output an error message. Proceed to) and finish. However, if the execution is normally completed in the step 504, the process proceeds to the step 506, the end transaction (END_TRN) command is performed to store the final value in the disk or memory, and then proceeds to the step 507 to end normally.

As an application of the present invention, in a switching software environment using a distributed database, a transaction function may be added to an existing program to maintain data consistency.

As described above, according to the present invention, the packet D-channel data processing function focuses on the reliability of the system and is capable of preventing data inconsistency that may occur through system prechecks. For distributed data, a structure that enhances data consistency by using transaction function is used. This configuration will contribute to stable system operation because it is designed as a fault tolerant structure that guarantees data consistency even in the event of various system errors such as database call failure or communication failure between processors.

Claims (7)

A data processor, a transaction manager / database, and a local database are mounted, and an operation and maintenance processor that receives operator command information from a workstation connected to the data processing function as a signal and terminates processing or stores it on a disk, and a transaction manager / data. Comprehensive network matching exchange processor that implements local database with shape and link information of base and frame multiprocessor and frame multiprocessor hardware, and local with shape and link information of transaction manager / database and channel packet processing unit. A packet matching exchange processor in which a database is mounted, the operation and maintenance processor, a comprehensive information network matching exchange processor, and a packet matching switching processor are connected through a fixed path for packets, a communication network between processors. That it is configured to perform transaction-based processing transactions around the electronic switch according to claim di-channel data processing system. The data processing unit of claim 1, wherein the data processor receives an operator command information from the workstation and performs voice processing, and receives an operator command information from the workstation, and aggregates information network subscriber data for processing an integrated information network function. No.7 signal data processing function for processing common line signal by receiving operator command information from the workstation, and packet subscriber data processing function for service of packet subscriber by receiving operator command information from the workstation Transaction-based de-channel data processing system in an electronic switch, characterized in that consisting of blocks. 2. The integrated information network matching system according to claim 1, wherein an integrated information network matching exchange processor, a trunk line signal processor, a fixed path, and a first frame and a second frame multiprocessor are respectively mounted to perform transaction processing through the fixed path for packets. A packet switching subsystem in which a switching subsystem, a packet matching switching processor, a trunk line signal processor, and first and second D-channel packet processing apparatuses are respectively mounted; and a system between the integrated network matching switching subsystem and the packet matching switching subsystem. Transaction-based de-channel data processing system in an electronic switch, characterized in that consisting of a subsystem connector for connecting. 4. The transaction-based system of claim 3, wherein the first and second frame multiprocessors are hardware boards of 0 or 1, each of which has its own link rather than redundancy. Channel data processing system. The apparatus of claim 3, wherein the first and second D-channel packet processing apparatuses each have eight links, and each link is connected to the first and second frame multiprocessors according to an operator's request. Transaction-based de-channel data processing system in an electronic switch. Performing a data processing function for the D-channel fixed path setting function according to a transaction start command in the packet subscriber data processing block, which is an application program, after the process is started, and performing a plurality of update operations, insert operations, and deletion operations; -Checking whether an error occurs while performing a data processing function for the channel fixed path setting function, and performing an error called a transaction error if an error occurs during the data processing function for the D-channel fixed path setting function. Ending execution after outputting a message and executing a transaction termination command if no error occurs during the data processing function for the D-channel fixed path setting function and then saving the final value in disk or memory and ending it. Transaction based on the electronic switch, characterized in that consisting of steps D-channel data processing method. The method of claim 6, wherein the performing of the data processing function for the D-channel fixed path setting function comprises: checking a link type according to data change; and B-channel, P-channel, and T- according to the link type. Performing a routine for processing a channel or confirming that the state of the integrated information network matching exchange processor is normal, and clearly notifying the error according to a result of the checking by the integrated information network matching exchange processor, and ending the packet Confirming whether the state of the matched exchange processor is normal, notifying clearly of the error according to the result of the packet matched exchange processor, and ending the execution or confirming whether the input parameter is bonded to the process; According to the result of confirming whether the parameter has joined the processing, inform the error clearly and then finish the execution. Or confirming whether the target tuple exists or not, and clearly notifying the error according to the result of checking whether the target tuple exists, and ending the execution or configuring information for data input and updating or inserting the database. Checking whether the execution of the database is normally completed, and ending the processing after the error is processed or outputting a normal change state according to a result of checking whether the execution of the database is normally completed. Transaction-based de-channel data processing method in an electronic switch.