KR100240057B1 - Call processing device having multi-operator in satellite telecommunication system - Google Patents

Abstract

The present invention relates to a control command processing apparatus for processing a command input through each operator terminal without confusion in operating a satellite communication system having a plurality of operator terminals, wherein the plurality of operator terminals are connected and operated In the system, an M & C interface provided with a control unit for controlling overall operations of the entire system while communicating with a plurality of operator terminals, and an M & C interface having an input port corresponding to the operator terminal one-to-one for communication between each operator terminal and the control unit. M & C response message storage unit for storing the response message ID corresponding to each command for the control command to be stored, and the ID of the predetermined response command read from the M & C response message storage unit based on the command input from the operator terminal for each port. It is inputted from the scheduled response storage unit for each port, the operator terminal An execution target code storage unit storing code information of a target to be executed, the M & C response message storage unit, the scheduled response storage unit for each port, and the target station from the earth station based on data set in the target code storage unit. And a command transmitting and receiving unit for transmitting and receiving a control command and a response message through communication with each earth station under control of the control unit, and an M & C command management unit providing processing information on the transmitted response message.

Description

Command processing device in a satellite communication system having a plurality of operator terminals

The present invention relates to a control system for managing a satellite communication network, and more particularly, to a control command processing apparatus configured to process a command input through each operator terminal without confusion in operating a satellite communication system including a plurality of operator terminals. will be.

When the network operator who manages the satellite communication network needs to control the subordinate base station or the central control station, the M & C (Monitoring & Control) command is transmitted to the earth station through the operator terminal operated as an interface device between the operator and the system. In this case, the corresponding station is to perform the operation according to the M & C command transmitted from the operator terminal, and as a result, send a message back to the operator terminal.

On the other hand, Figure 1 is a block diagram for explaining such a series of network management and control process, in Figure 1, reference numeral 1 is a satellite having a plurality of communication channels, 2 is a central control for controlling the entire satellite communication system Station 3 (3A, 3B) has interface functions for terminals such as exchange terminals 11A, 11B, telephones 12A, 12B, computers, data terminals 13A, 13B, and facsimile 14A, 14B. In addition, the base station provides a call function between the various terminals by establishing a call through data communication with the central control station 2.

The configuration of the central control station 2 is as follows.

Reference numeral 10 is an antenna for transmitting / receiving an uplink signal transmitted to the satellite 1 side and a downlink signal transmitted from the satellite, and 20 is an ultra-high frequency received by the antenna 10. RF transmitter / receiver for converting downlink signal of band to intermediate frequency (IF) signal and converting 70MHz band of intermediate frequency (IF) signal to RF signal of ultra high frequency band at the same time for uplink signal, and 30 is 70MHz IF processing stage for processing the intermediate frequency (IF) signal of the band, reference numeral 40 is a response message transmitted from the corresponding base station after transmitting a control message to each base station through the IF processing stage 30 Perform the polling function to check the status of each base station based on the base station, and if there is a call request from the subordinate base station, The network control unit that determines whether the station is in a communication state and, when in a communication state, allocates an available traffic channel of the satellite to both base stations so that both base stations can directly communicate with each other. In addition, 50 is a network management system that enables the satellite network manager to monitor the overall network operation and to control the entire satellite system including the base station as needed.

That is, in the conventional satellite system having the above-described configuration, when there is a call setup request from an arbitrary subscriber base station 3, the processor (not shown) inside the network control unit 40 obtains base station information obtained by polling, and Based on the available channel state information, the channel of the requested bandwidth is allocated among the currently available communication channels. In addition, the communication network operator operates the operator terminal (not shown) provided in the network management system 50 when updating the data in the subordinate base station or the central station or controlling the operation of some components. The control unit (M &C; Monitoring & Control) command is transmitted to the 40 side. The network control unit 40 sends the control command received from the operator terminal to the corresponding earth station through the service channel, and then the control transmitted from the corresponding earth station. By notifying the command execution result to the network management system 50, the network operator can check the command execution result through a monitor provided in the operator terminal.

Meanwhile, the satellite communication network manager may diversify the operation of the system by configuring a plurality of operator terminals as shown in FIG. 2 for efficient management and network operation of the satellite communication system. In this case, the network controller 40 ) Aggregates the commands input from each operator's terminal and gives control commands (M & C) to each earth station and receives responses. Therefore, there is a possibility of confusion between the control command sent to the earth station and the response message. Done.

That is, when a response message for a transmitted command is received, it may be difficult to determine which operator terminal the response should be sent to, and a situation in which a command and a response from various places are mixed may not perform a proper control function.

Recently, in consideration of the above problem, when a command is input through the operator terminal, the code data information of the scheduled response message is recorded in the memory area of the port where the command is input, and when the response message is returned, the recording is performed. An attempt was made to prevent confusion in notifying a response message to each operator terminal by transmitting a response message according to the command execution result based on the information.

However, in the above method, when the same command is input through two or more operator terminals at similar time points, it is found that the destination of the response message according to the command processing result cannot be accurately identified.

The present invention has been made in view of the above circumstances, and in operating a satellite communication system having a plurality of operator terminals, input port information, scheduled response information, and instruction execution target information for a command input through each of these operator terminals. It is an object of the present invention to provide a command processing apparatus in a satellite communication system having a plurality of operator terminals configured to process response messages according to a command execution result by recording each of them.

1 is an overall system configuration for explaining the outline of a general satellite communication system.

Fig. 2 is a block diagram showing the configuration of a central control station 2 equipped with a plurality of operator terminals.

Figure 3 is a block diagram showing the internal configuration of a network control unit with a control command processing function according to an embodiment of the present invention.

4 is a diagram illustrating a data format of a message transmitted and received between an operator terminal and an earth station.

FIG. 5 is a diagram illustrating a memory map of the response response storage unit 404 for each port shown in FIG.

* Explanation of symbols for the main parts of the drawings

1: satellite 2: central control station

3A, 3B: base station 11A, 11B: switchboard

12A, 12B: Telephone 13A, 13B: Data Terminal

14A, 14B: Facsimile 10: Antenna

20: RF transmitting and receiving terminal 30: IF processing stage

40,400: Network control unit 50: Network management system

5 ₁ ~5n: an operator terminal 401: processor

402: program storage unit 403: M & C interface

404: scheduled response storage unit for each port 405: M & C response message storage unit

406: Execution target code storage unit 407: M & C instruction management unit

408: Dual Port RAM (DP RAM) 409: Service Channel Controller (SCC)

In the satellite communication system according to the present invention for realizing the above object is a control unit for controlling the overall operation of the system in communication with a plurality of operator terminals in a satellite communication system in which a plurality of operator terminals are connected and operated; And an M & C interface having an input port corresponding to the operator terminal in a one-to-one correspondence for communication between each operator terminal and the controller, and an M & C response message storing the response message ID corresponding to each command with respect to a control command applied from the operator terminal. The port-specific scheduled response storage unit for storing the ID of the predetermined response command read from the M & C response message storage unit for each port based on the command input from the operator terminal, and code information of a target to be executed by the command input from the operator terminal. An execution target code storage unit storing the M & C response An M & C instruction management unit that provides processing information on response messages transmitted from the earth station to the control unit based on the data set in the message storage unit, the scheduled response storage unit for each port, and the target code storage unit, and the control of the control unit. It characterized in that it comprises a command transmission and reception unit for transmitting and receiving control commands and response messages through communication with each earth station.

That is, according to the present invention having the above-described configuration, the result message is accurately output to the corresponding operator terminal based on the port information, the scheduled response information, and the command execution target information registered at the time of command transmission for the response message transmitted from the earth station side. By being able to deliver it is possible to prevent the interference caused by operating a plurality of operator terminals.

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

FIG. 3 is a block diagram illustrating an internal configuration of a network controller equipped with a command processing function of a plurality of operator terminals according to an exemplary embodiment of the present invention. For components that perform substantially the same functions as those illustrated in FIG. The same reference numerals are used, and detailed description thereof will be omitted.

In FIG. 3, reference numeral 401 in FIG. 3 transmits a control command transmitted from each operator terminal to a corresponding earth station while communicating with a network management system 50 including a plurality of operator terminals 5 _{1 to} 5n. A processor for executing a system-wide control operation according to an operator input command by notifying the corresponding operator terminal of the response message, 402 is a program storage unit in which an operation program of the processor 401 is stored, and 403 is the network. It is an M & C interface provided with an input port corresponding to the operator terminals 5 _{1 to} 5n one-to-one for communication between each operator terminal 5 _{1 to} 5n of the management system 50 and the processor 401.

Reference numeral 407 denotes an M & C instruction management unit that provides the processor 401 with processing information for an instruction inputted through an M & C interface 403 and a response message transmitted from an earth station, and 405 is authorized from an operator terminal. M & C response message storage unit for storing a response message ID corresponding to each command with respect to the control command, 404 is the M & C response message for each input port for the command input from the operator terminal under the control of the M & C command management unit 406. A port-specific scheduled response storage unit for storing an ID of a predetermined response command read out from the storage unit 405, and reference numeral 406 denotes an earth station or unit to which the command is to be executed under the control of the M & C response message storage unit 405. FIG. Execution target code storage that stores code information.

On the other hand, reference numeral 409 extracts packet information from the message applied by the IF processor 30, and transmits a message of a TDM (Time Division Multiplex) stream to the IF processor 30. A service channel controller (SCC) for generating and outputting the data, and 408 is a dual port RAM for data transmission and reception between the processor 401 and the service channel controller (SCC) 409.

Next, the operation of the device having the above configuration will be described.

When a control (M & C) command input from a plurality of operator terminals is input through the M & C interface 403, the processor 401 may input command information applied through each input port of the M & C interface 403 to the corresponding input port information. Correspondingly, it is output to the M & C instruction management unit 407.

In this case, the instruction information applied from the processor 401 includes an M & C instruction information message ID and ID information (SIDC; SET ID CORD) of the earth station to be transmitted, as shown in FIG. As illustrated in FIG. 5, the M & C command management unit 407 reads response message information corresponding to the M & C command information message ID from the M & C response message storage unit 405 and stores the read response data for each port. In addition to registering and setting in the corresponding port area of the unit 404, the command is transmitted and the earth station ID information (SIDC) to be executed is extracted and the corresponding code is read from the execution target code storage unit 406. It will be registered in.

Subsequently, the M & C command management unit 407 analyzes the command information authorized from the processor 401 and provides the processor 401 with the earth station information and the command message ID to which the command is to be transmitted. The M & C command message to be sent to the corresponding earth station is recorded in the dual port RAM (DP RAM) 408.

The service channel controller (SCC) 409 reads the information recorded in the dual port RAM 408 and generates a message of the TDM stream based on the information. The message of the generated TDM stream is IF processed. It is transmitted to the earth station through the antenna 10 via the stage 30 and the RF transceiver 20.

Thereafter, when the response message is transmitted from the corresponding earth station, when the response message is recorded in the dual port RAM 408 by the service channel controller (SCC) 409, the processor 401 reads the read information. Is output to the M & C command management unit 407.

Meanwhile, the response message information applied from the processor 401 to the M & C command management unit 407 includes response command message IDs for the commands transmitted to the earth station as shown in FIG. 4 (b), and earth station information on which the commands are executed. (SIDC) and the result code according to the instruction processing result, the M & C instruction management unit 407 has the same data as the response command message ID from the scheduled response storage unit 404 for each port based on the instruction execution earth station information. The port number which is registered is indexed, and the port data and the code data according to the instruction processing result are output to the processor 401 side.

As a result, the processor 401 transmits the instruction processing result transmitted from the earth station through the corresponding port of the M & C interface 403 based on the port information received from the M & C instruction management unit 407 to input the M & C instruction. The response result is notified to the operator terminal.

That is, according to the above embodiment, in operating a satellite communication system having a plurality of operator terminals, it is possible to realize a control command processing apparatus configured to process commands input through each of these operator terminals without interference.

As described above, according to the present invention, the result message is accurately transmitted to the operator terminal based on the port information, the scheduled response information, and the command execution information, which are registered at the time of command transmission for the response message transmitted from the earth station. By being able to transmit, it is possible to prevent crosstalk due to operating a plurality of operator terminals.

Claims (1)

In a satellite communication system in which a plurality of operator terminals are connected and operated, a controller for controlling overall operations of the system while communicating with a plurality of operator terminals, and an input corresponding to the operator terminal in a one-to-one correspondence for communication between each operator terminal and the controller A M & C interface equipped with a port, an M & C response message storage unit for storing a response message ID corresponding to each command with respect to a control command applied from an operator terminal, and reading from the M & C response message storage unit based on a command input from an operator terminal. A scheduled response storage unit for each port for storing the ID of the predetermined scheduled response command for each port, an execution target code storage unit for storing code information of a target to execute a command input from an operator terminal, the M & C response message storage unit and the port; Scheduled response storage unit and the target code storage unit. An M & C command management unit that provides processing information on the response message transmitted from the earth station to the control unit based on the determined data, and a command transmitting / receiving unit which transmits and receives a control command and response message through communication with each earth station under the control of the control unit. Command processing apparatus in a satellite communication system having a plurality of operator terminals, characterized in that configured to include.

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