KR20000047233A - Message transfer method and device using multi ports in multimedia satellite communication system - Google Patents

Abstract

PURPOSE: A message transfer method and a device using multi ports in multimedia satellite communication system are provided to allot sub systems to respective port of a central station, thereby rapidly transferring messages from a main system to respective sub system. CONSTITUTION: A message transfer method using multi ports in multimedia satellite communication system comprises steps of: searching a port number corresponding to an IP address of respective sub system; connecting a corresponding sub system to the searched setup port; recognizing the IP address of message data to be transferred; driving the setup port in order that the message data can be transferred through a port corresponding to the IP address; and transferring the message data to the port setup according to the IP address.

Description

Message transmission method and device using multi-port in multimedia satellite communication system

The present invention relates to a multimedia satellite communication system, and more particularly, to a multi-port in a multimedia satellite communication system, which can handle message transmission from a main system to each subsystem by installing multiple ports in a central station and assigning them to respective subsystems. It relates to a message transmission method and apparatus using.

1 is a block diagram showing the overall system configuration of a multimedia satellite communication system.

In FIG. 1, reference numeral 1 denotes a central station connected to the Internet, which provides various multimedia services to terminal stations, and performs overall network operation management and control functions. In addition, reference numeral 3 is a terminal station antenna, 4 is a set top box as a terminal station providing multimedia services to a general subscriber, 5 is a personal computer as a terminal for a user to perform multimedia communication, and 6 is a satellite. to be.

That is, in the multimedia satellite communication system having the above-described configuration, first, the central station 1 supplies various satellite resource information required when the set-top box 4 requests access to the central station 1, for example, the central station 1. An information service is provided to provide a CDMA code and channel frequency data for transmitting a control message and a PID for information service for common reception in all set-top boxes 4.

On the other hand, in the set-top box (4) stores the service information transmitted from the central station 1, that is, CDMA code data, channel frequency data, and information service PID used when requesting a call connection to the central station (1). do.

When the access request for the Internet, that is, the call connection request, is input from the personal computer 5 in the above-described state, the set-top box 4 receives the subscriber information input from the computer 5, namely, the subscriber ID, password, After generating a predetermined control message based on the subscriber address or the like, the access request is executed to the central station 1 by allocating CDMA code data and channel frequency data.

Subsequently, when the access request is input through the above-described process, the central station 1 first compares the subscriber's IP and password included in the control message with the subscriber's information to determine whether the current access request is a legitimate subscriber. do.

At this time, if it is determined that the user is a legitimate subscriber, the database is searched to determine whether there is a PID currently available to allocate the satellite resource, that is, the control PID, traffic PID, channel frequency, and CDMA code to the set-top box 4. do. At this time, the information service PID is used as the PID of the TS packet transmitted to the set top box 4.

In the set top box 4, the control PID and the traffic PID assigned by the central station 1 are set, and the CDMA code and channel frequency data transmitted from the central station 1 are allocated. Then, the personal computer 5 is informed that the call connection is successful.

Subsequently, when the IP packet for transmitting to the Internet from the personal computer 5 is input, the corresponding traffic data is transmitted to the central station 1, and when the central station 1 receives the traffic data from the set-top box 4, It is converted into an IP packet and sent to the Internet.

Meanwhile, the central station 1 converts the IP packet data received from the set top box 4 into an Ethernet frame and transmits it to the Internet. For this purpose, the central station 1 includes an IP switch for switching the IP packet data.

The IP switch is combined in a single port with a central international language processor which controls the central station 1 as a whole, and is also combined with a subsystem for processing transmission data or a subsystem for processing reception data. In addition, the IP switch is combined with a subsystem for operating and managing the entire satellite network by the system operator and a subsystem for storing service information or registration subscriber information allocated to each set-top box 4.

Therefore, in the central station 1 having the above-described configuration, not only the control message of the central international language processor but also the traffic data and the control message to each subsystem are frequently generated through the IP switch.

In addition, the IP switch transmits the control message sent from the central international language processor to the corresponding subsystem according to the IP address included in the control message, that is, the IP address of each subsystem. When a large amount of data is used, a large amount of data is transmitted and received between the IP switch and the central international language processor combined with one port, and a load is generated due to the data transmission and reception, and thus the message data cannot be correctly transmitted and processed.

Therefore, the transmission load generated as described above causes an abnormality in the transmission line or the processing speed is delayed, thereby lowering the efficiency of the system operation or causing a failure.

Accordingly, the present invention has been made in view of the above circumstances, and provides a multi-port in a central station of a multimedia satellite communication system and assigns a subsystem to each port to quickly process message transmission from the main system to each subsystem. An object of the present invention is to provide a message transmission method and apparatus using multiple ports in a multimedia satellite communication system.

1 is a block diagram showing the overall configuration of a multimedia satellite communication system.

2 is a block diagram illustrating a message transmission apparatus using multiple ports in a multimedia satellite communication system according to an embodiment of the present invention.

3 is a flowchart illustrating a message transmission method using multiple ports in a multimedia satellite communication system according to an embodiment of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

1: central station 2, 3: antenna

4: set top box 5: personal computer (PC)

6: satellite 10: IP switch

17: transmission data processing device 18: modulation device

19: RF device 20: demodulation device

21: CDMA receiving device 22: Receiving data processing device

23: central international language processor 24: network management system (NMS)

25: database 26: port map memory

In the multimedia satellite communication system according to the present invention for realizing the above object, a message transmission method using multiple ports includes a subsystem having respective IP addresses, switching means coupled to the subsystems, the switching means and multiple ports. In a message transmission method using multiple ports in a central station that transmits and processes through a port set to a corresponding subsystem according to an IP address of message data combined and transmitted through a port, a port number corresponding to an IP address of each subsystem is provided. Setting port search step for searching, transmission port setting step for controlling the corresponding subsystem connected to the found setting port, IP address recognition step for recognizing the IP address of the message data to be sent, message through the corresponding port corresponding to the IP address Setting port driving step for driving on so that data can be transmitted, the previous Including the transfer message transmission step of transmitting the control data message to the port that is set in accordance with the IP address of the message data, characterized in that configured.

In addition, in the multimedia satellite communication system according to the present invention for realizing the above object, a message transmission apparatus using multiple ports includes a transmission data processing apparatus for processing message data to be transmitted, a reception data processing apparatus for processing received message data, and A central station of a multimedia satellite communication system having sub-systems, such as a network system for maintenance and management of a satellite network, each sub-system according to an IP address of message data transmitted with multiple ports coupled to the sub-systems. A central international language processor for controlling data transmission through the multiple ports to the IP switch and having multiple ports for combining with multiple ports of the IP switch, and an IP address of each subsystem. Port number of each corresponding multiport is composed of map table , Including port map memory, which is characterized in that chapter configured.

According to the present invention having the above configuration, by transmitting the message data to be transmitted through the port set for each subsystem, it is possible to simultaneously transmit a large amount of transmission messages without failure.

Therefore, the processing speed of the system is improved, so that the system efficiency can be improved.

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

2 is a block diagram illustrating a message transmission apparatus using multiple ports in a central station of a multimedia satellite communication system according to an embodiment of the present invention.

In Fig. 2, reference numeral 10 denotes a multiple port (PORT 1 to PORT n) coupled to each subsystem, that is, a transmission data processing apparatus 17, a reception data processing apparatus 22, a network management system 24, and the like, which will be described later. An IP switch for transmitting and processing to each subsystem according to the IP address of the message data to be transmitted. The IP switch 10 includes a DNS (Domain Name System) server 11 and an e-mail server 12, A web server 13, a proxy server 14, a multimedia service provider 15, a router 16, and the like are combined. In particular, the router 16 executes connection processing between the central station 1 and the Internet, which converts an IP packet input from the Internet into the central station 1 into data of an Ethernet frame and converts the data from the central station 1 to the Internet. Ethernet frame sent to IP packet is converted into IP packet.

In the figure, reference numeral 17 denotes a transmission data processing apparatus for processing transmission data input from the IP switch 10 to generate, for example, an MPEG-2 TS packet, and 18 is output from the transmission data processing apparatus 16. A modulator for outputting an intermediate frequency signal of, for example, 70 MHz by performing quadrature phase shift keying (QPSK) modulation on TS packet data, and 19 converts the intermediate frequency signal outputted from the modulator 18 into frequency upconversion and high output amplification. It is an RF device for outputting to the antenna (2), the high-frequency signal received through the antenna (2) down-frequency conversion and low noise amplification output.

In the drawing, reference numeral 20 denotes a demodulation device for demodulating an intermediate frequency signal input from the RF device 19, and 21 denotes CDMA demodulation of CDMA modulation data input by frequency demodulation in the demodulation device 20. A CDMA receiving device for outputting packet data, 22 is a receiving data processing device for processing data input from the CDMA receiving device 21, wherein the receiving data processing device 22 is an IP packet data from the set-top box (4) If the control message is received or converted to the data of the Ethernet frame is input to the IP switch 10. In addition, the reception data processing device 22 converts, for example, 100 baseT, that is, 100 Mbps data input from the CDMA reception device 21 into data of 10 baseT, and inputs the data to the IP switch 10.

In addition, the reference numeral 23 in the drawing is to control the entire apparatus of the central station (1), and having multiple ports for coupling with the multiple ports of the IP switch 10 through the multiple ports to the IP switch 10 As a central international language processor that controls data transmission, it generates a control message to be sent to each subsystem and sends it to the corresponding port according to the IP address included in the control message.

In addition, reference numeral 24 denotes a network management system for the system operator to operate and manage the entire satellite network, and 25 denotes PID, frequency data, and CDMA code data that can be assigned to the set-top box 4. Is a database in which IDs, passwords, and IP addresses of registered subscribers are stored, and port 26 stores a port table of each port number corresponding to the IP addresses of the respective subsystems. to be.

Next, a data transmission method using multiple ports in the central station according to the present invention having the above configuration will be described with reference to the operation flowchart shown in FIG.

First, when the system is powered on in the central station 1 (step ST1), the central international language processor 23 assigns a port number corresponding to the IP address of each subsystem stored in the port map memory 26. Information is retrieved (step ST2), and the information is read and sent to the IP switch 10 so that the message data transmitted through the IP switch 10 is transmitted to the set port.

That is, the IP switch 10 sub-ports each port among the multiple ports (PORT 1 to PORT n) coupled with the central international language processor 23 based on the port information received from the central international language processor 23. The output port is set to be connected to the system (ST3 step).

With the IP address of each subsystem and its corresponding port set as described above, the central international language processor 23 has message data to be transmitted to any subsystem, or the central international language processor ( If there is message data being transmitted to (23) (ST4 step), the central international language processor 23 retrieves the header of the transmission message data and recognizes the IP address of the subsystem to which subsystem to send (ST5). step).

Subsequently, the central international language processor 23 confirming the IP address of the transmission message data drives the multiple ports PORT 1 to PORT n coupled with the IP switch 10 to transmit the transmission message data through the corresponding port. (Step ST6).

The central international language processor 23 transmits the retrieved transmission message data to the corresponding port corresponding to the IP address (step ST7). Accordingly, the transmission message data is transmitted to the IP switch 10 through the corresponding port, and thus the IP switch 10 is transmitted from the central international language processor 23 to transmit the received transmission message data to the corresponding corresponding subsystem. By doing so, the subsystem performs the operation of each system based on the received transmission message data.

That is, according to the above embodiment, the transmission of the message data from the central station is directly transmitted to the configured subsystem through the corresponding port of the multiple ports, thereby processing a large amount of transmission data in a short time.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary of this invention.

As described above, according to the present invention, it is possible to realize a method and apparatus for transmitting messages using multiple ports in a multimedia satellite communication system, which enables a central station to quickly process a large amount of transmission data using multiple ports.

Claims (2)

Subsystems having respective IP addresses, switching means coupled with these subsystems, and transmission processing through ports set to the corresponding subsystems according to IP addresses of message data transmitted and received by combining the switching means with multiple ports. In the message transmission method using a multi-port equipped with a central station, A setting port searching step of searching for a port number corresponding to the IP address of each subsystem; Transmission port setting step for controlling the connection to the corresponding subsystem to the found configuration port, IP address recognition step to recognize the IP address of the message data to be sent, A setting port driving step of driving on so that message data can be transmitted through a corresponding port corresponding to the IP address; Message transmission method using a multi-port in a multimedia satellite communication system, characterized in that it comprises a transmission message transmission step of controlling the transmission of the message data to the port set according to the IP address of the transmission message data. In the central station of the multimedia satellite communication system having a transmission data processing device for processing the message data to be transmitted, a receiving data processing device for processing the received message data, and a subsystem such as a network system for maintenance and management of the satellite network. , An IP switch having multiple ports coupled to each of the subsystems, the IP switch transmitting and processing to each subsystem according to the IP address of the message data transmitted; A central international language processor having multiple ports for coupling with multiple ports of the IP switch to control data transmission through multiple ports to the IP switch; And a port map memory in which a port number of each of the multiple ports corresponding to the IP address of each of the subsystems is configured and stored in a map table.