KR100278976B1 - Method and device for data connection in frequency public communication system - Google Patents

Abstract

The present disclosure relates to a data connection device of a common frequency communication system.

The data connection device of the disclosed common frequency communication system includes: a repeater for receiving a high frequency signal transmitted from a common frequency communication terminal, separating data and voice, and multiplexing the separated data and voice through one communication line; A line controller of the frequency common system for separating data from the multiplexed signal transmitted from the repeater and transmitting the data through one communication line; It includes a controller of the frequency common system for receiving data through a communication line and transmitting in a predetermined manner, and thus data through a single line between the repeater and the controller of the frequency common system or between the controller of the frequency common system and the line controller. There is an advantage to transmit.

Description

Method and apparatus for data connection of frequency common communication system

The present invention relates to a method of connecting data and voice between a repeater constituting a trunked radio system and a controller of a frequency common communication system for controlling a plurality of repeaters. The present invention relates to a method and apparatus for data connection of a common frequency communication system for facilitating connection of data and voice through an E1 interface when the distance between the controllers of the communication system is too long, so that data and voice are not easily connected and the E1 line is secured. .

In general, a frequency common communication system refers to a method in which a plurality of subscriber groups jointly use a certain frequency channel, such as an office, a moving person, and a vehicle, by using a wireless relay facility in a manner in which the subscriber group commonly uses a certain frequency channel. .

1 is a block diagram showing a data connection device of a conventional common frequency communication system.

Referring to FIG. 1, a high frequency signal transmitted from a frequency common communication terminal 100 and a frequency common communication terminal 100 which are located at a long distance and wirelessly modulate voice and data to a high frequency to transmit through an antenna ANT. Frequency having a repeater 101 for receiving, amplifying and demodulating and outputting data and voice separately, and a line matching card 102a for receiving and processing the voice separated from the repeater 101 through an analog line matching line 104. The common frequency communication controller 103 including a common communication line controller 102 and an interface unit 103a and a control module unit 103b which receive and process data separated from the repeater 101 through the interface line 105. It is composed of

In the above, the repeater 101 is received through the high frequency module unit 101a for receiving and amplifying and demodulating the high frequency signal transmitted from the common frequency communication terminal 100 through the antenna ANT and the high frequency module unit 101a. Data separated from the channel card unit 101b and the channel card unit 101b for separating voice and data from one high frequency signal and transmitting the voice to the frequency common communication line controller 102 through the analog line matching line 104. It is composed of a repeater controller (101c) for relaying to the common frequency communication controller 103 via the interface line 105.

The data connection device of the conventional frequency communication system according to the prior art, as described above, modulates voice and data into high frequency in the frequency common communication terminal 100 and transmits the same through the antenna ANT. 101a receives, amplifies and demodulates a transmission high frequency signal through an antenna ANT to provide a channel card unit 101b DP.

The channel card unit 101b of the repeater 101 separates the voice and the data from the high frequency signal input by demodulating in the high frequency module unit 101a and divides the voice through the analog line matching line 104. ) And the data is provided to its own repeater controller (101c).

The repeater controller 101c transmits the input data to the frequency common communication controller 103 through the interface line 105.

The frequency common communication line controller 102 receives and processes the voice through the line matching card 102a, and the frequency common communication controller 103 receives the data through the interface unit 103a and receives the data through the control module unit 103b. Data processing.

However, the data access device of the conventional public communication system according to the prior art requires as many physical connections as the number of channels for voice transmission between the repeater and the switch, and data is also required as the number of repeaters.

In addition, the distance and the transmission speed are limited according to the characteristics of the interface unit, and there is a problem in that peripheral circuits necessary for configuring the interface unit require as many repeaters.

Accordingly, the present invention excludes a decrease in transmission speed due to many physical connection lines and integrity characteristics generated during voice transmission between a repeater and an exchanger in the above-described conventional technology. It is an object of the present invention to provide a method and apparatus for accessing data in a frequency common communication system that enables voice and data to be transmitted through one communication line when data is transmitted between frequency common communication controllers.

Another aspect of the present invention is to separate the data transmitted from the repeater in the line controller of the frequency common system and to transmit the separated data to the controller of the frequency common system through one communication line.

1 is a block diagram showing a data connection device of a common frequency communication system according to the prior art,

2 is a block diagram illustrating an embodiment provided in a description of a data connection device of a common frequency communication system according to the present invention.

<Description of Symbols for Main Parts of Drawings>

200: common frequency communication terminal 201: repeater

201b: channel card unit 201c: first switching module unit

201d: first interface unit 202: line controller

202b: second switching module unit 203: controller of the frequency common system

The above objects include the steps of receiving and separating data and voices transmitted from a frequency common communication terminal; Transmitting the separated data and voice to a line controller of a common frequency system through one transmission line; And receiving and separating the transmitted data and voices, and transmitting the separated data to a controller of a frequency common system, wherein the data connection method of the frequency common communication system according to an aspect of the present invention. Is achieved.

Preferably, the one communication line is characterized in that the E1 line.

In accordance with another aspect of the present invention, there is provided a data access apparatus of a common frequency communication system, receiving a high frequency signal transmitted from a common frequency communication terminal, separating data and voices, and separating the separated data and voices. A repeater for multiplexing and transmitting through one communication line; A line controller of the frequency common system for separating data from the multiplexed signal transmitted from the repeater and transmitting the data through one communication line; And a controller of the common frequency system that receives the data through the one communication line and transmits the data in a predetermined manner.

Preferably, the repeater,

(1) high frequency module means for receiving, amplifying and demodulating the high frequency signal;

(2) a channel card unit for extracting and separating data and voice from the demodulated high frequency signal;

(3) first switching module means for multiplexing the separated data and voice; And

(4) first interface means for interfacing the multiplexed data to a line controller of the common frequency system through one communication line.

Preferably, the line controller of the common frequency system,

(1) second interface means for receiving the multiplexed signal through the one communication line;

(2) second switching module means for separating data from the interfaced multiplexed signal; And

(3) third interface means for transmitting the separated data to a controller of the frequency common system through one communication line.

Preferably, the controller of the frequency common system,

(1) fourth interface means for receiving data through said one communication line and converting it into a pulse code modulation highway;

(2) third switching module means for switching the interfaced pulse code modulation highway data;

(3) pre-interface module means for extracting data from the switched pulse code modulation highway; And

(4) control module means for transmitting the extracted data through a separate channel.

In this way, when transmitting data between the repeater and the controller of the frequency common system, it is possible to transmit voice and data in one communication line, and also to transmit the data between the controller and the line controller of the frequency common system through one communication line. Can be.

And, there may be a plurality of embodiments of the present invention, the following will be described in detail for the most preferred embodiment.

Through this preferred embodiment, it is possible to better understand the objects, features and advantages of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the data connection device of the common frequency communication system according to the present invention.

2 is a block diagram illustrating an embodiment provided in a description of a data connection device of a common frequency communication system according to the present invention.

According to the present embodiment, the frequency common communication terminal 200 modulates voice and data at high frequency and transmits the same through the antenna ANT, and receives the transmitted high frequency signal to separate data and voice, Repeater 201 for multiplexing the voices and transmitting them through one communication line 204, and a line controller of a common frequency system for separating data from the multiplexed signal transmitted from the repeater 201 and transmitting them through one communication line. 202 and the controller 203 of the common frequency system for receiving the data through the one communication line and transmitting in a predetermined manner.

The repeater 201 may include a high frequency module unit 201a for receiving and amplifying and demodulating the high frequency signal through an antenna ANT, and a channel card unit for extracting and separating data and voice from the demodulated high frequency signal ( 201b), a first switching module unit 201c for multiplexing the separated data and voice, and a first interface for interfacing the multiplexed data to the line controller 202 of the common frequency system through one communication line 204. It consists of the interface part 201d.

In the above, the line controller 202 of the common frequency system, the second interface unit 202a for receiving the multiplexed signal through one communication line 204, and the second to separate data from the interfaced multiplexed signal A switching module unit 202b and a third interface unit 202c for transmitting the separated data to the controller 203 of the frequency common system through one communication line.

In addition, the controller 203 of the common frequency system, the fourth interface unit 203a for receiving data through the one communication line and converts it into a pulse code modulation (PCM) highway, and the interface A third switching module unit 203b for switching pulse code modulation highway data, a pre-interface module unit 203c for extracting data from the switched pulse code modulation highway, and transmitting the extracted data through a separate channel Control module 203d.

The data connection device of the common frequency communication system according to the present invention made as described above will be described in more detail below.

First, when the frequency common communication terminal 200 modulates data and voice into high frequency signals and transmits them to the public network through the antenna ANT, the high frequency module unit 201a of the repeater 201 receives the high frequency signals through the antenna ANT. Received and separated into data and voice.

The separated data and voice are transmitted to the channel card unit 201b.

It is transmitted through the PB, which is a separate data interface from the repeater controller delivered to the channel card unit 201b, and data from each channel card unit is allocated to one channel on the pulse code modulation highway in the first interface unit 201d, Voices are assigned to one of the 29 pulsecode modulated highway channels via voice decoding / coding (Codec).

The pulse code modulated highway channel of voice and data is collected into one pulse code modulated highway through the first switching module unit 201c in the repeater 201 through a communication line 204 such as the E1 line. Is sent to the line controller 202.

Voice and data transmitted through one communication line 204 is provided to the second switching module unit 202b through the second interface unit 202a inside the line controller 202.

The second switching module unit 202b collects the data transmitted from the repeaters 201 in one pulse code modulation highway, which is shared by the third interface unit 202c and one communication line. Is sent to the controller 203 of the system.

The pulse code modulation highway input into the controller 203 of the frequency common system is provided to the third switching module unit 203b through the fourth interface unit 203a.

Here, the first to fourth interface units 201d, 202a, 202c, and 203a are E1 interface units.

Subsequently, the third switching module unit 203b switches the input pulse code modulation highway to the pre-interface module unit 203c.

The pre-interface module unit 203c extracts data from the input pulse code modulation highway and the extracted data is transmitted through a separate data channel from the control module unit 203d.

As described above, in the present embodiment, when data is transmitted between the repeater and the control of the frequency common system, voice and data are transmitted through one communication network, and data is transmitted through one communication line between the controller and the line controller of the frequency common system. There is an advantage to send.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.

It is clear from the above description that the data connection device of the common frequency communication system according to the present invention has only an analog interface between a line controller and a repeater for voice transmission, and no pre-interface section for data transmission. An analog patch (Path) for the voice must be secured between the controller and the repeater of the frequency common system, and a separate channel for the data patch is required, so that many lines must be secured for the configuration of the entire system. Has a voice channel of 29 or less, it can be processed with one interface, so that the system can be simplified and the expansion of the repeater can be easily performed.

Claims (3)

A repeater for receiving a high frequency signal transmitted from a common frequency communication terminal, separating data and voice, and multiplexing the separated data and voice through one communication line; A line controller of the frequency common system for separating data from the multiplexed signal transmitted from the repeater and transmitting the data through one communication line; And a controller of a frequency common system for receiving and transmitting the data through the one communication line in a predetermined manner, wherein the repeater is configured to receive and amplify the high frequency signal. High frequency module means for demodulating; A channel card unit for extracting and separating data and voice from the demodulated high frequency signal; First switching module means for multiplexing the separated data and voice; And first interface means for interfacing the multiplexed data to a line controller of the frequency common system through one communication line, wherein the line controller of the frequency shared system comprises the multiplex signal through the one communication line. Second interface means for receiving a; Second switching module means for separating data from the multiplexed signal; And third interface means for transmitting the separated data to a controller of the frequency common system through one communication line. The system of claim 1, wherein the controller of the common frequency system comprises: fourth interface means for receiving data through the one communication line and converting the data into a pulse code modulation highway; Third switching module means for switching the interfaced pulse code modulation highway data; Preinterface module means for extracting data from the switched pulse code modulation highway; And a control module means for transmitting the extracted data through a separate channel. 2. The data connection device of claim 1, wherein the one communication line is an E1 line.

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