KR0146490B1 - Data communication method in home location register - Google Patents

Abstract

The present invention relates to a method for enabling communication between processes existing in the same computer or between processes existing in different computers, regardless of the number of computers connected to the network or the number of processes performed on each computer. Using the optical communication interface device used in the home location register, the table storing the IP addresses of computers for sending and receiving messages between computers in the network without affecting the communication speed between the computers in the network and for sending and receiving messages between the processes in the computers. Using the table that stores the key values of the message queues used by the processes, register the IP address if you want to connect to the computer by extending the connection, and register the message queue of the process if you want to increase the process. Extend communication There is an effect that it is possible.

Description

Data communication method in Home Location Register (HLR) system

1 is a diagram illustrating a connection structure between processors in an HLR system according to the present invention.

2 is an IXPC program structure diagram for communication between processors according to the present invention.

3 is a message delivery path diagram according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

A: IXPC B: High Speed Optical Communication Interface

a: socket processing unit b: message processing unit

c: message queue d: socket

e: address table

The present invention relates to a home location register (HLR) system of a mobile communication network to which a code division multiple access (CDMA) scheme is applied, the HLR system using a high speed optical communication interface device and an address table on an IXPC communication program. The present invention relates to a data communication method in an HLR system that enables communication between processes of a processor connected to a network, and thus enables flexible expansion of hardware and software of the HLR system.

In general, a CDMA HLR system is composed of a Backend Processor (BEP) Front Processor (FEP) and an Operation and Maintenance Processor (OMP) in terms of physical structure. It includes a Transfer Part (MTP) and a dedicated processor, the CMP (CCS MTP Processor).

In such an HLR system, an optical communication interface device using an optical cable is used for high speed communication between the front end processor, the rear end processor, and the management apparatus.

Therefore, in particular, the back end processor includes a mobile application part (MAP) and a database (DB), and the front end processor includes a question-and-answer function in response to CCS No. 7 signaling. It includes a Capabilities Application Part (TCAP) and a Signaling Connection Control Part (SCCP), and the management apparatus includes HLR maintenance related processes.

In the CDMA HLR system, in order to accommodate an increasing number of subscribers or to provide another management device for management purposes, it is necessary to add another subsystem in addition to the front processor, the post processor, and the management device.

However, at this time, a change in the shape of the HLR system network occurs due to a subsystem additionally connected to the HLR system network, that is, a processor or a computer, and it is necessary to modify and recompile the program in charge of communication between the respective subsystems. There was a problem.

An object of the present invention for solving the above problems, regardless of the number of computers connected to the HLR system network or the number of processes performed in each computer between the processes existing in the same computer or between processes existing in different computers The present invention provides a data communication method in an HLR system that enables a smooth communication.

Another object of the present invention is to use a high-speed optical communication interface device without affecting the communication speed between processes, and by providing an address table on a communication program and using the information in the table, without having to recompile the communication program. The present invention provides a data communication method in an HLR system capable of extending hardware and software.

A feature of the present invention for achieving the above object is a message communication method between each process performed in a processor such as a post processor, a front processor, and a management device of the HLR system and a newly additional processor, the message from any process When the message is transmitted to the IXPC through the queue, a first step of the message processing unit to analyze the IP address of the processor containing the destination process of the transmitted message through the address table of the transmitted message, and the message processing unit A second step of determining whether the IP address analyzed in step 1 and the IP address of the processor currently executing the IXPC are the same; and in the second step, the IP address of the processor including the destination process and the current IXPC are performed. If it is determined that the IP address of the processor is the same, the address table of the message A third process of transmitting a message to a message queue of a corresponding destination process according to a key value of a message queue of the communication queue, and performing communication between other processes in the same processor; and in the second process, an IP address of a processor including the destination process; If it is determined that the IP address of the processor currently performing the IXPC is not the same, a fourth process of transmitting the message to the socket of another processor including the destination process via the high speed optical communication interface unit, and the socket processing unit of the other processor Analyzing the message queue and the destination process of the message transmitted to the socket; and transmitting the message to the message queue of the corresponding destination process according to the key value of the message queue of the address table of the message analyzed in the fifth step. To communicate between processes in the processor There is performed the process including 6.

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

1 is a diagram illustrating a connection structure between a processor or computers in an HLR system, and in particular, illustrates a relationship between the processor and a system-internal and system-eXternal process communication (IXPC) program.

Referring to FIG. 1, the relationship between the processor and the IXPC program will be described. Each process performed by the post processor 10, the front processor 20, and the management device 30 of the HLR system is IXPC programs 11 and 21. 31) to exchange messages with each other.

In other words, the processors connected to the HLR system network, for example, computers can store the IP address for identifying themselves in the address table of the IXPC program before executing their own IXPC program.

In FIG. 1, the network is configured using the high speed optical communication interface device 40 being used in the HLR system. As the HLR system uses the high speed optical communication interface device 40, the rear end processor 10 and the front end processor ( 20) The management apparatus 30 includes a high speed optical interface block (HIB) 12, 22, and 32 so that the IXPC can communicate with an external computer or a pseudo system substantially.

Therefore, by using the high speed optical communication interface device 40, it is possible to transmit and receive messages with each other without being affected by the communication speed regardless of the number of computers or processes connected to the network.

Meanwhile, the IXPC program according to the present invention uses a socket for communication between processes located in another computer, and uses a message queue technique for communication between processes in the same computer. The general structure of an IXPC program, which is a communication program for communication between processors, is described as follows.

The IXPC program A is composed of a socket processing unit IXPC_SH (a) for providing socket communication and a message processing unit (IXPC_MH) (b) for processing message queue communication.

The socket processing unit (a) and the message processing unit (b) uses an address table (e) for routing, and this address table (e) is a table for storing IP addres for routing messages between computers in the network, and a process. It consists of a table that stores the key value of the message queue for message queue communication between them.

If you want to extend the computer in the HLR system network according to the above configuration, save the IP address of the computer in a table in the program, and if you want to increase the process in the same computer, Store key values in a table for use.

In addition, as the HLR system uses a high speed optical communication interface device, the IXPC program A substantially passes the high speed optical communication interface B when communicating with an external computer or an external system.

That is, when a message is to be sent to a process in another computer, the IXPC transmits the message inserted into the socket d through the high speed optical communication interface unit B to the destination computer.

In the case of the receiving side, the transmitted and arrived message is read through the high speed optical communication interface unit and stored in the socket, so that the IXPC takes the message from the socket.

By using the socket, even if the IXPC is to be used in another system other than the HLR system, there is an advantage that it can be flexibly ported without depending on the hardware.

Meanwhile, communication between processes will be described in detail with reference to FIG.

As shown in FIG. 2, the message processing unit IXPC_MH (b) sends a message arriving at the message queue IXPC MsgQ (c) to another computer or another message queue, and the socket processing unit IXPC_SH (a) sends a socket ( The message arrived at d) is sent to the message queue of the destination process.

That is, when a message is transmitted from any process to the IXPC via the message queue c, the message processing section b reads the message.

Then, the message processing unit (b) finds the IP address of the computer containing the destination process by using the information of the arrived message in the address table and compares it with the IP address of the computer currently running the IXPC.

If the IP address of the computer containing the destination process and the IP address of the computer currently executing the IXPC are the same, it is for sending a message to a process in the same computer. The message is then put into the message queue of the destination process (2).

However, if the IP address is not the same, the message is sent to a process in another computer, and thus the message is sent to the socket of the computer containing the destination process via the high speed optical communication interface (B) (3).

Next, when sending a message to a process existing in another computer, if there is a message arriving at the socket (d) (4), the socket processing unit (a) takes out the message.

As the message is a message transmitted from a process in another computer, the message is analyzed, the destination process and the message queue are identified, and the message is sent to the corresponding message queue (5).

In particular, since the high speed optical communication interface device is used for fast communication between the processes, the message movement between computers must pass through the high speed optical communication interface.

3 is a diagram illustrating a message transfer path between processes P, Q, R, and S existing in two first and second computers, and the second to second process P 51 in the first computer 50 are shown in FIG. When attempting to deliver a message to process R 61 in computer 60, process P 51 places the message in message queue 51 'of the IXPC.

Subsequently, the message processing section 54 finds the message in the message queue 51 'and passes through the high speed optical communication interface sections 57 and 67, knowing that the destination process is the process R 61 in the second computer 60, respectively. To place a message in the socket 66 of the second computer 60.

The socket processing unit 64 of the second computer finds that the message arrives in the socket 66, and knows that the destination process is the process R 61, and puts the message in the message queue 61 'of the process.

If the process P 51 in the first computer 50 transmits a message to the process Q 52 of the same first computer 51, the message processing unit 54 in the first computer 51 processes the process. The message is placed in the message queue 52 'of the Q 52.

Similarly, the path of a message from another process follows the same flow of messages.

As described above, the present invention uses an IXPC program using a table for flexible expansion of hardware and software.

Therefore, when a new computer is connected to the HLR system network, the IP address of the new computer must be registered in a table that stores the IP address, which indicates the destination computer address for messages to be sent to other computers when routing a message. Used to find out.

In addition, if you want to add a new process, you must register the message queue to be used by the process in the table that stores the key value of the message queue, which knows the message queue of the destination process for the messages to be sent to the destination process when the message is routed. Used to pay.

Since the table is maintained in the shared memory, even if the addition and deletion of the table information occurs, the changed table information can be used without the need to recompile the program.

As described above, the present invention provides a flexible system of hardware and software without significantly changing the system by using an address table when newly adding or deleting hardware or software to a network that is already configured and a system connected to the network. Not only can it be extended, but the hardware and software can be expanded by using a high-speed optical communication interface device, so that messages can be transmitted and received between computers or processes in a network without being affected by the communication speed.

Claims (3)

In the message communication method between each process performed in a processor such as a post processor, a front processor, and a management device of a HLR system and a newly added processor using a high speed optical communication interface device, a communication program IPXC for communication between the processors is different. And a message processing unit for processing message queue communication between processes in a processor, such as a socket processing unit providing socket communication for message communication between processes located in a processor. The address of claim 1, wherein the socket processing unit and the message processing unit comprise a table storing an IP address for message routing between processes and a table storing a key value of a message queue for message queue communication between processes. A method of data communication in a home location register system, wherein message communication between processes is performed using a table. The processor of claim 1, wherein when a message is transmitted from any process to a IXPC via a message queue, a message processing unit is configured to include a destination process of the transmitted message through an address table of the transmitted message. A first step of analyzing an IP address; A second step of determining, by the message processing unit, whether the IP address analyzed in the first step and the IP address of the processor currently executing the IXPC are the same; If it is determined in step 2 that the IP address of the processor including the destination process and the IP address of the processor currently executing the IXPC are the same, the message of the corresponding destination process according to the key value of the message queue of the address table of the message Transmitting a message to a queue to perform communication between other processes in the same processor; In the second step, if it is determined that the IP address of the processor including the destination process and the IP address of the processor currently executing the IXPC are not the same, the socket is connected to the socket of another processor including the destination process through the high speed optical communication interface block. A fourth step of transmitting the message; A fifth process of analyzing a destination process and a message queue of a message transmitted to the socket by a socket processing unit of the other processor; and a corresponding destination process according to a key value of a message queue of an address table of the message analyzed in the fifth process. And a sixth process of transmitting a message to a message queue to perform communication between processes in another processor.