KR100221840B1 - Apparatus for processing command in satellite communication 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, the control unit for controlling the overall operation of the system by transmitting a control command transmitted from each operator terminal to the corresponding earth station while communicating with a plurality of operator terminals, and notifying the operator terminal a response message from the earth station, 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 from the operator terminal, Based on the command input from the operator terminal The control unit based on the data set by the port for the predetermined response storage unit for storing the ID of the predetermined response command read from the M & C response message storage unit for each port, the M & C response message storage unit and the scheduled response storage unit for each port An M & C instruction management unit that provides processing information on a command input through the M & C interface and a response message transmitted from the earth station, and transmits and receives a control command and response message through communication with each earth station under the control of the processor. Characterized in that it comprises a command transceiver.

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 to the 40) bar, 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 ) Generates a control command (M & C) to each relevant earth station by receiving the commands inputted from each operator's terminal and receives the 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.

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, a satellite having a plurality of operator terminals configured to process commands input through each of these operator terminals without confusion. Its purpose is to provide a command processing apparatus in a communication system.

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.

* 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: M & C command management unit 408: service channel controller

In the satellite communication system according to the present invention for realizing the above object, in the satellite communication system in which a plurality of operator terminals are connected and operated, a control command transmitted from each operator terminal while communicating with the plurality of operator terminals. Controller to control the overall operation of the system according to sending a message to the corresponding earth station and notifying the corresponding operator terminal of the response message from the earth station, and an input port corresponding to the operator terminal and one to one for communication between each operator terminal and the controller is provided. M & C response message storage unit for storing the response message ID corresponding to each command with respect to the M & C interface, the control command applied from the operator terminal, and the predetermined response read from the M & C response message storage unit based on the command input from the operator terminal. To save the ID of each command Based on the data set in each scheduled response storage unit, the M & C response message storage unit, and the scheduled response storage unit for each port, the controller inputs processing information on a command input through an M & C interface and a response message transmitted from an earth station. And an instruction transceiver for transmitting and receiving a control command and a response message through communication with each earth station under control of the processor.

That is, according to the present invention having the above-described configuration, it is possible to accurately transmit the result message to the corresponding operator terminal on the basis of the port information registered at the time of command transmission for the response message transmitted from the earth station. This can prevent the confusion caused by operating the system.

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. The M & C interface is 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.

In addition, reference numeral 406 is an M & C command management unit that provides the processor 401 with processing information for the command input through the M & C interface 403 and the response message transmitted from the earth station, and 405 is authorized from the operator terminal. M & C response message storage unit for storing a response message ID corresponding to each command for 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 The port-specific scheduled response storage unit stores the ID of the predetermined response command read out from the storage unit 405.

Meanwhile, reference numeral 408 extracts packet information from a message authorized by the IF processing unit 30 and generates a message of a time division multiplex (TDM) stream for the IF processing unit 30. And a service channel controller (SCC) for outputting data, and 407 is a dual port RAM for transmitting and receiving data between the processor 401 and the service channel controller (SCC) 408.

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 406.

In this case, the instruction information applied from the processor 401 includes the M & C instruction information message ID and the ID information of the earth station to be transmitted (SIDC; SET ID CORD) as shown in FIG. The M & C command management unit 406 reads the response message information corresponding to the M & C command information message ID from the M & C response message storage unit 405, and reads the read data from the corresponding port of the scheduled response storage unit 404 for each port. Registration is made in the area.

Subsequently, the M & C instruction management unit 406 analyzes the instruction information authorized from the processor 401 and provides the processor 401 with the earth station information and the instruction message ID to which the instruction is to be transmitted. In this case, the M & C command message to be sent to the corresponding earth station is recorded in the dual port RAM (DP RAM) 407. The service channel controller (SCC) 408 reads the information recorded in the dual port RAM 407 through the above process 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 407 by the service channel controller (SCC) 408, the processor 401 reads the read information. Is output to the M & C command management unit 406.

In this case, the response message information applied from the processor 401 to the M & C command management unit 406 includes a response command message ID for the command transmitted to the earth station and a result of the command processing as shown in FIG. The code includes the M & C command management unit 406 indexing the port number in which the same data as the response command message ID is registered from the scheduled response storage unit 404 for each port and indexing the port information and command processing. The code data according to the result is output to the processor 401 side.

As a result, the processor 401 inputs the M & C instruction by transmitting the command 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 406. 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, it is possible to accurately transmit the result message to the corresponding operator terminal based on the port information registered at the time of command transmission for the response message transmitted from the earth station side, thereby operating the plurality of operator terminals. It is possible to prevent crosstalk due to

Claims (1)

In a satellite communication system in which a plurality of operator terminals are connected and operated, Control unit for controlling the overall operation of the system by transmitting a control command transmitted from each operator terminal to the corresponding earth station while communicating with a plurality of operator terminals and notifying the operator terminal of the response message from the earth station, M & C interface provided with 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 with respect to the control command from the operator terminal, A scheduled response storage unit for each port for storing an ID of a predetermined response command read from the M & C response message storage unit for each port based on a command input from an operator terminal; An M & C command management unit for providing processing information on a command input through an M & C interface and a response message transmitted from an earth station to the controller based on data set in the M & C response message storage unit and the scheduled response storage unit for each port; And 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 the control of the processor.