KR101157136B1 - Multi-path repeater and control process of multi-path repeater - Google Patents

Abstract

PURPOSE: A multiple routes relay apparatus and control method thereof are provided to increase the survivability of a rebroadcasting apparatus by increasing available channels through various connection configurations of a channel card unit. CONSTITUTION: A low noise amplification unit(220) is composed of two low noise amplifiers which receives a signal from a reception antenna(210) and transmits the signal to a channel card unit(230). The channel card unit is composed of one or eighteen channel cards and receives the signal from the low noise amplification unit, and to transmits the signal to a gain control unit(250) by receiving the signal from the low noise amplification unit. The gain control unit is composed of two gain controllers which transmit the signal to a high output amplification unit(260). The high output amplification unit is composed of two high output amplifier which outputs the signal through a transmission antenna(270).

Description

Control method of multipath repeater device and multipath repeater device {Multi-path Repeater and Control Process of Multi-path Repeater}

The present invention relates to a control method of a multi-path repeater device and a multi-path repeater device, and more particularly, having a low noise amplification unit, a gain control unit and a high output amplification unit composed of two or more components, respectively, which can be replaced when damage occurs. It relates to a multi-path repeater device consisting of a channel card section consisting of 1 to 18 channel cards. The present invention also relates to a multipath repeater device and a control method of such a multipath repeater device, characterized in that the low noise amplifier, channel card unit, gain control unit, high output amplifier unit shares damage and setting information with the central control unit. .

To date, communication services have been developed into two categories: mobile communication and wired communication services. Mobile communication is a technology that provides voice and wireless data services using mobile phones. Advanced Mobile Phone Service system (AMPS), Global System for Mobile communication (GSM) and Inter-Standard-95 (CDMA) code of IS-95 series Division Multiple Access (CDMA) system, cdma2000 1x / Ev-Do (Evolution Data only), Wideband CDMA (WCDMA), and the like. Such technologies are rapidly growing despite the high usage fee due to the feature that the voice communication and wireless data service can be provided anytime, anywhere using a mobile communication terminal.

Currently, the 3G mobile communication system is developing into a 4G (4th Generation) mobile communication system. The fourth generation mobile communication system is not only a simple wireless communication service like the previous generation mobile communication systems, but also aims at efficient interworking and integration services between a wired communication network and a wireless communication network and is faster than the third generation mobile communication system. Techniques for providing data transmission services are being standardized.

Meanwhile, in a general public mobile communication network, a plurality of base stations cover an entire area, and one base station forms one mobile communication network area. Accordingly, the mobile terminal transmits and receives data through the wireless channel with the base station within the coverage of the base station. However, there is a problem in that communication between the base station and the mobile terminal is not smoothly performed in an area where radio waves are difficult to reach even in a tunnel or underground mobile communication network service area.

Accordingly, a repeater between the base station and the mobile terminal in order to improve call quality and extend base station coverage for a call dead zone or a geographically blocked region due to geographical features that are difficult to reach in a mobile communication network service area as described above. Will be installed. That is, the repeater is responsible for effectively amplifying and relaying a weak signal in a radio wave shadow area.

As shown in FIG. 1, a dual path repeater device is used. The dual path repeater device is capable of signal transmission in both directions, but in the case of loss of one component on each path, there is a problem that it is impossible to repeat the relay.

In particular, the national integrated network or train radio network has the characteristics that require public interest and emergency. Therefore, in this case, the repeater used is multipath and should be organically arranged, but the conventional dual path repeater device has a problem that is not.

In addition, the loss of some components in the repeater, there was a problem that the repeater must be temporarily stopped for repair, which can cause a fatal problem in the situation such as national integrated network or train radio network.

The present invention has been made to solve the above-described problem, an object of each component to implement the path repeater device by sharing the setting information of each other.

The multi-path repeater device goes through the process of substituting the spare parts with the other components through the control of the central control unit in case of an error of each component, and replaces with an available channel in case of an error in the channel used in the channel card unit to enable uninterrupted re-relay. For the purpose of

The present invention proposes a multi-path repeater device in which each component of the low noise amplifier, the gain control unit, and the high power amplifier is doubled to solve the instability of the continuous relay in the dual path repeater device.

In addition, the present invention proposes a method of replacing a spare with another component in the event of damage to one of the components in the multi-path repeater device.

In addition, the present invention proposes a method of sharing the setting information between channel cards in the channel card unit and dividing the channel card into a use channel and an available channel to replace one of the available channels with a use channel when damage is detected in the use channel. do.

According to the present invention, a non-interruptible re-relay of the communication network can be performed, and re-relay without interruption of a signal can be performed during maintenance and repair of the equipment.

In addition, according to the present invention, as the available channels increase through various connection configurations of the channel card unit, the survivability of the repeater increases, and there is an effect of preventing the interruption of the repeater even when one component is lost in the repeater.

1 is a block diagram of a conventional dual path repeater device.
2 is a block diagram of a multi-path repeater device according to a preferred embodiment of the present invention.
3 is a configuration diagram in which a central control unit is added to a multi-path repeater device according to an exemplary embodiment of the present invention.
4 is a configuration diagram designating a channel card unit as an available channel and an available channel of a multi-path repeater device according to an exemplary embodiment of the present invention.
5 is a flowchart illustrating a process of controlling a channel card unit by a central controller.
6 is a flowchart of an embodiment in which the central control unit controls the channel card.

Hereinafter, with reference to the drawings will be described in detail with respect to embodiments and embodiments of the control method of the multi-path repeater device and the multi-path repeater device of the present invention.

The present invention consists of a low noise amplifier 220 consisting of two low noise amplifiers for receiving a signal from the receiving antenna 210 to the channel card unit 230 and one to eighteen channel cards and the low noise amplifier It consists of a channel card unit 230 for receiving the signal at 220 and transmitting it to the gain control unit 250 and two gain controllers for receiving the signal at the channel card unit 230 and transmitting it to the high output amplifier 260. And a high output amplifier 260 composed of two high output amplifiers for receiving a signal from the gain control unit 250 and the gain control unit 250 and outputting a signal through the transmission antenna 270. A route repeater device.

The receiving antenna 210 has a function of receiving a signal to be relayed by the repeater device. The reception antenna 210 may receive a signal such as radio frequency (hereinafter, referred to as 'RF') or microwave (M / W) according to a relay method of the repeater.

The signal received at the reception antenna 210 has a very low power level due to the effects of attenuation and noise. Therefore, such a signal is amplified by the low noise amplifier 220. The low noise amplifier 220 (LNA: Low Noise Amplifer) is an amplifier designed to hold a contact point and a matching point so that the noise figure (NF) is low. Typically, the noise figure has a value of 1.5 to 2.5.

The signal amplified by the low noise amplifier 220 is input to the channel card unit 230.

An object of the present invention is to solve the problem of the dual path repeater device 100 by sharing the setting information of the channel card unit 230 of the dual path and designing the channel card unit in a multi-path as shown in FIG.

As shown in FIG. 2, the channel card unit 230 of the multi-path repeater system 200 has a form in which one to eighteen channel cards 231 to 238 are combined. Each channel card 231 to 238 includes an up / down converter. The up / down converters of the channel cards 231 to 238 are connected to a mixer to convert a frequency into a frequency corresponding to an output signal with respect to a received signal.

The signal converted by the channel card unit 230 is transferred to the gain control unit 250.

The signal converted by the gain control unit 250 is transferred to the high output amplifier 260.

The gain control unit 250 maintains the gain of the amplified signal passed through the low noise amplifier 220 and the channel card unit 230 at a constant level.

The gain control unit 250 functions to supply a signal having a high gain to the high output amplifier 260 in order to transmit a signal with sufficient output from the high output amplifier 260.

The high power amplifier 260 (HPA; High Power Amplifer) is located at the end of the transmitter and transmits the amplified signal to the transmission antenna 270. The high output amplifying unit 260 amplifies a signal having a power of a certain intensity or more for allowing a mobile communication device or the like to smoothly receive from a repeater.

The low noise amplifier 220, the gain controller 250, and the high output amplifier 260 are each provided with components therein. For example, a low noise amplifier 1 and a low noise amplifier 2 are provided in the low noise amplifier 220. In addition, the dual components inside each share configuration information with each other.

In addition, the channel card unit 230 includes 1 to 18 channel cards 231 to 238 therein. These channel cards share setting information with each other like the above components.

In addition, the present invention, as shown in Figure 3, may be provided with a central control unit 280 that can detect the presence or absence of damage to each component. The central control unit 280 is connected to each component through an internal network and serves to share and control the damage and setting information of each component in real time. Each of the components means a low noise amplifier 220, a channel card 230, a gain controller 250, and a high output amplifier 260.

In addition, as shown in FIG. 4, the channel card being used immediately is designated as the use channel 230-1, and the remaining channel card is designated as an available channel 230-2. 4 illustrates an embodiment of eight channel cards, and the present invention can be implemented for all of one to eighteen channel cards.

As shown in FIG. 3, each component transmits damage and setting information to the central controller 280 in real time.

In addition, the present invention relates to a control method of a multi-path repeater device is controlled through the following steps.

1. The low-noise amplifier 220, the channel card 230 of the use channel 230-1, the gain control unit 250 and the high output amplifier 260 transmits the damage to the central control unit 280 in real time. .

2. If damage is detected in the low noise amplifier 220, the gain control unit 250, or the high power amplifier 260, the central control unit 280 drops the component whose damage is detected and replaces it with a second spare component. Implement replacement control.

3. If damage is detected in the use channel 230-1 of the channel card unit 230, the central control unit 280 drops the use channel 230-1 in which the damage is detected and the available channel 230-2. Control to relocate one of the channel cards to the use channel 230-1.

In addition to the above control method, the present invention may further include a control method of repeating a damage detection and relocation process of the use channel for efficient control of the use channel 230-1. This control method is shown in FIG.

As shown in FIG. 5, first, the central controller 280 detects whether the use channel 230-1 is damaged. If the central control does not detect damage, the repeater will operate normally, but if damage is detected, constant control is required. If damage is detected, the central controller 280 determines whether there is an available channel. If there is no available channel can not be relocated it can not prevent the repeater even through the control method of the present invention, it can be solved by increasing the number of channel cards of the channel card 230. If there is an available channel, control is performed to drop the damaged use channel 230-1 and to relocate one of the available channels 230-2 to the use channel 230-1. Thereafter, the process of determining whether the newly relocated use channel 230-1 is damaged is repeated.

6 illustrates a method of controlling the channel card unit 230 by detecting whether a channel card is damaged when the central control unit 280 has a use channel 230-1 and an available channel 230-2 as shown in FIG. 4. Indicated.

Through the above-described process, the multi-path repeater device can implement the best control method capable of non-stop relaying within the limit of the channel card.

A description of a preferred embodiment of the multipath repeater device of the present invention described above is described in FIG. The content of each component of FIG. 7 is as follows. S / W: RF Switch, LNA: Low Noise Amplifier, UDC: Channel Card (Up / Down Amplifier), Splitter: Distributor / Combiner, DRV: Drive Amlifier ), HPA: High Power Amplifier

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but this is merely exemplary, and those skilled in the art may make modifications and equivalents to other embodiments of the present invention. Will understand. Therefore, the true technical protection of the present invention will be defined by the technical spirit of the appended claims.

100: dual path repeater device
110: receiving antenna 120: low noise amplifier
130: channel card unit 150: gain control unit
160: high power amplifier 170: transmitting antenna
200: multipath repeater device
210: receiving antenna 220: low noise amplifier
230: channel card unit
230-1: channel used 230-2: available channel
250: gain control unit 260: high power amplifier
270: transmitting antenna 280: central control unit

Claims (4)

A low noise amplifier 220 comprising two low noise amplifiers for receiving a signal from the reception antenna 210 and transmitting the signal to the channel card unit 230;
A channel card unit 230 including 1 to 18 channel cards and receiving the signal from the low noise amplifier 220 and transmitting the signal to the gain control unit 250;
A gain control unit (250) comprising two gain controllers for receiving a signal from the channel card unit (230) and transmitting the signal to the high power amplifier (260); And
In the multi-path repeater device comprising a; high output amplifier 260 consisting of two high output amplifiers for receiving a signal from the gain control unit 250 and outputs a signal through the transmission antenna 270,
Further comprising a central control unit 280 for detecting whether each component of the repeater device is damaged,
The low noise amplifier 220, the gain control unit 250, the high power amplifier 260 and the channel card unit 230 further comprises a module for transmitting whether the damage to the central control unit 280 Path repeater device.
delete The central control unit 280 for detecting an abnormality of each component of the repeater device is composed of 1 to 18 channel cards and receives the signal from the low noise amplifier 220 and transmits the signal to the gain control unit 250. ) Is divided into a use channel 230-1 and an available channel 230-2;
The low noise amplifier 220 includes two low noise amplifiers for receiving a signal from the reception antenna 210 and transmitting the signal to the channel card unit 230, and the channel card unit 230. A gain control unit 250 consisting of a use channel 230-1, two gain controllers for receiving a signal from the channel card unit 230 and transmitting the signal to the high output amplifying unit 260, and the gain control unit 250. Detecting a damage of the high power amplifier 260 comprising two high power amplifiers that receive a signal and output a signal through the transmission antenna 270;
If the central controller 280 detects damage of the low noise amplifier 220, the gain controller 250, or the high output amplifier 260 in the step of detecting whether the high output amplifier 260 is damaged, the central controller ( Controlling 280 to replace each of the above components with a spare another component; And
When the central control unit 280 detects the damage of the use channel 230-1 in the step of detecting whether the high output amplification unit 260 is damaged, the central control unit 280 causes the abnormal use channel 230-. 1) removing and controlling one of the available channels 230-2 to be relocated to the use channel 230-1.
Detecting, by the central controller 280, whether the rearranged use channel 230-1 is damaged in the step of controlling the rearrangement to the use channel 230-1; And
If the damage of the rearranged use channel 230-1 is detected again in the step of detecting the damage again, the rearrangement removes the rearranged use channel 230-1 and relocates one of the available channels 230-2. Repeating the process and relocating the used channel 230-1 whether the damage of the used channel 230-1 is not detected until the damage of the used channel 230-1 is repeated; the multi-path repeater comprising a Control method of the device.
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