KR101091381B1 - Apparatus and method for automatic gain setting - Google Patents

Abstract

Provided is an automatic gain information setting device for receiving output setting information and detecting input level information through an input level detecting element and automatically setting gain information based on the output setting information and the detected input level information. do.

Repeater, Gain, Automatic Level Control, ALC

Description

Device and method for automatically setting gain information {APPARATUS AND METHOD FOR AUTOMATIC GAIN SETTING}

Embodiments of the present invention relate to an apparatus and method for setting gain information when a repeater is installed, and more particularly, to an apparatus and method for automatically setting gain information when inputting desired output setting information when installing a repeater. It is about.

As the mobile communication system develops, high quality mobile communication services are required in all areas, from mountainous areas where mobile communication services cannot reach properly, to radio wave shadow areas such as remote islands and underground buildings.

However, it is economically inefficient to construct and operate a base station at a high cost in an area where the demand for mobile communication service is low to accommodate such a demand, so instead of a base station which requires a high maintenance cost to satisfy such a demand. I'm using a repeater installation method.

Such a repeater is a device that receives a signal on an electromagnetic or optical transmission medium in a communication network, amplifies and retransmits to the next section of the medium. Repeaters overcome signal attenuation due to electromagnetic field spread or cable loss, so it is possible to extend the signal over long distances using multiple repeaters.

When the repeater is installed in a local area or the like, the operator should set gain information in order to obtain the desired output value of the repeater.In setting the gain information, the transmitter gain (Tx (transmitter) gain) information (forward gain information) ) And the receiver gain (Rx (Receiver) gain) (reverse gain information) have to be manually set.

One embodiment of the present invention is to provide an apparatus for automatically setting gain information having an algorithm that can automatically set gain information.

According to an exemplary embodiment of the present invention, an apparatus for automatically setting gain information includes a receiver for receiving output setting information, a detector for detecting input level information through an input level detecting element, and based on the output setting information and the detected input level information. And a gain setting unit for automatically setting gain information.

In addition, the gain information setting unit of the automatic gain information setting apparatus according to an embodiment of the present invention, transmitter gain information for automatically setting transmitter gain (Tx gain) information based on the output setting information and the detected input level information. It includes a setting unit.

In addition, the gain information setting unit of the automatic gain information setting apparatus according to an embodiment of the present invention, the receiver gain for automatically setting the receiver gain (Rx gain) information based on the transmitter gain information when the transmitter gain information is set An information setting unit is included.

In addition, the automatic gain information setting apparatus according to an embodiment of the present invention further comprises a determination unit for determining whether the output setting information is normally set according to the setting of the gain information, the determination unit is the output setting information is normally If not set, control to detect the input level information again.

In addition, the method for automatically setting gain information according to an embodiment of the present invention includes receiving output setting information, detecting input level information through an input level detecting element, and outputting the output setting information and the detected input level information. And automatically setting gain information based on the gain.

In addition, automatically setting the gain information in the automatic gain information setting method according to an embodiment of the present invention automatically sets transmitter gain information based on the output setting information and the detected input level information. Setting up.

In addition, automatically setting the gain information in the automatic gain information setting method according to an embodiment of the present invention automatically sets the receiver gain information based on the transmitter gain information when the transmitter gain information is set. It includes the step of setting.

The automatic gain information setting method according to an embodiment of the present invention may include determining whether the output setting information is normally set according to the setting of the gain information, and if the output setting information is not normally set, the input. Controlling to detect the level information again.

According to an embodiment of the present invention, in setting a repeater, gain information may be automatically set.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and accompanying drawings, but the present invention is not limited to or limited by the embodiments.

On the other hand, in describing the present invention, when it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. The terminology used herein is a term used for appropriately expressing an embodiment of the present invention, which may vary depending on the user, the intent of the operator, or the practice of the field to which the present invention belongs. Therefore, the definitions of the terms should be made based on the contents throughout the specification.

1 is a block diagram showing the configuration of the automatic gain information setting apparatus according to an embodiment of the present invention, Figure 2 is a block diagram showing the configuration of a gain information setting unit according to an embodiment of the present invention.

The apparatus for automatically setting gain information according to an embodiment of the present invention includes a receiver 110, an extraction unit 120, and a gain information setting unit 130, and the gain information setting unit 130 sets transmitter gain information. The unit 131 and the receiver gain information setting unit 132 are included.

Although the apparatus for automatically setting gain information according to an embodiment of the present invention is a device that can automatically set gain information (gain) such as a repeater, it is not limited to the field of repeater technology but sets the gain information of the technical field to which the present invention belongs. The method will be applicable to all the proposed devices.

The automatic gain information setting apparatus according to an embodiment of the present invention receives the output setting information by inputting the output setting information desired by the operator, and simultaneously detects the input level information through an input level detecting element, and then outputs the output setting information. Automatically sets transmitter gain (Tx (transmitter) gain) information (forward gain information) used for forward output correction based on the detected information and the detected input level information, and uses it for reverse output correction based on the transmitter gain information. The receiver gain (Rx (Receiver) gain) information (reverse gain information) can be set automatically.

An apparatus for automatically setting gain information according to an embodiment of the present invention will be described with reference to FIG. 2.

3 is a flowchart illustrating a method of automatically setting gain information according to an embodiment of the present invention.

As described above, the apparatus for automatically setting gain information according to an embodiment of the present invention automatically sets the transmitter gain information and the receiver gain information by receiving the output setting information as an operator inputs desired output setting information. .

That is, the receiver 110 of the automatic gain information setting apparatus according to the embodiment of the present invention receives the input output setting information as the operator inputs the output setting information (310).

The apparatus for automatically setting gain information according to an embodiment of the present invention may be included in a repeater having an automatic level control function, and the output setting information manually input by an operator is information related to an automatic level control function. It may include various information such as automatic level control reference level information (ALC reference level), automatic level control output range information (ALC window size), automatic level control attenuation information (ALC atten). The output setting information is setting information of a forward output desired by an operator.

In this case, the automatic level control reference level information (ALC reference level) according to an embodiment of the present invention means the maximum output desired by the operator as information on the relay output upper limit level.

In addition, the automatic level control output range information (ALC window size) according to an embodiment of the present invention indicates the output change width of the repeater desired by the operator, automatic level control attenuation information (ALC atten) is an amplifier including an attenuator in the repeater The information indicating the control level of the attenuator is initially set manually by the operator, and then the output of the repeater is controlled by adjusting the automatic level control attenuation information (ALC atten) according to the automatic level control function of the repeater. Details of the automatic level control will be apparent to those skilled in the art, so other descriptions are omitted.

A repeater with an automatic level control function causes the repeater to produce an appropriate output using the output setting information and gain information described below.

The detector 120 of the automatic gain information setting apparatus according to an embodiment of the present invention detects the input level information through the input level detecting element (320).

The input level detecting element detects input level information of an input signal input to a forward RF module.

An input level detecting device according to an embodiment of the present invention is based on an element detecting a level of an input signal using a magnitude, a waveform, a voltage, etc. of an input signal input to a repeater.

That is, the input level information according to an embodiment of the present invention means information for detecting the strength of the input signal received through the receiver 110 in a predetermined unit.

For example, according to an embodiment of the present invention, since the signal strength is usually measured in decibels (dB) in the case of a repeater, the output setting information input by an operator may also be input in decibels. Information can also be detected in decibels.

Next, the gain information setting unit 130 according to an embodiment of the present invention automatically sets the gain information based on the output setting information and the detected input level information.

The gain information setting unit 130 according to an embodiment of the present invention includes a transmitter gain information setting unit 131 and a receiver gain information setting unit 132, and the transmitter gain information setting unit according to an embodiment of the present invention. 130 automatically sets transmitter gain (Tx_gain) information (forward gain information) based on the output setting information and the detected input level information (330).

In this case, the transmitter gain information according to an embodiment of the present invention is information that is automatically set to a value obtained by subtracting the input level information from the output setting information by the transmitter gain information setting unit 210 as shown in Equation 1 below. Can be.

Transmitter gain information = auto level control reference level information (ALC reference level) + auto level control attenuation information (ALC atten)-input level information

In addition, the receiver gain information setting unit 220 according to an embodiment of the present invention automatically sets receiver gain information (reverse gain information) based on the transmitter gain information (340).

In this case, the receiver gain information according to an embodiment of the present invention may be automatically set to a value obtained by subtracting a preset value for adjusting the receiver gain information from the transmitter gain information by the receiver gain information setting unit 220. .

For example, in the receiver gain information setting unit 220 according to an embodiment of the present invention, when the operator sets the receiver gain information for each repeater type, the receiver gain adjustment value is 5 dB. By applying the receiver gain information setting algorithm as shown in 2, the receiver gain information can be set automatically.

Receiver Gain Information = Transmitter Gain Information-5dB

In addition, the automatic gain information setting apparatus according to an embodiment of the present invention, when setting the transmitter gain information and the receiver gain information, the output setting unit for setting a reference level according to the automatic level control (ALC: Auto Level control) 140 may further include.

When setting the transmitter gain information and the receiver gain information, the output setting unit 1400 according to an embodiment of the present invention may set a reference level according to the automatic level control function related information (350).

Further, when the output setting unit 140 sets the reference level according to the automatic level control function related information, the automatic level control reference level information (ALC reference level), the automatic level control One or more of attenuation information (ALC Atten: Auto Level control Atten) and the operation output setting range (ALC window size) may be set.

In addition, the automatic gain information setting apparatus according to an embodiment of the present invention further includes a determination unit 150 for determining whether the output setting information is normally set according to the setting of the transmitter gain information and the receiver gain information. Can be.

In this case, when the output setting information is not normally set, the determination unit 150 according to an embodiment of the present invention may control to set the output setting information desired by the operator by detecting the input level information again (360). ).

Embodiments according to the present invention can be implemented in the form of program instructions that can be executed by various computer means can be recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described by specific embodiments such as specific components and the like. For those skilled in the art to which the present invention pertains, various modifications and variations are possible. Therefore, the spirit of the present invention should not be limited to the described embodiments, and all of the equivalents or equivalents of the claims as well as the claims to be described later will belong to the scope of the present invention. .

1 is a block diagram illustrating a configuration of an apparatus for automatically setting gain information according to an embodiment of the present invention.

2 is a block diagram showing a configuration of a gain information setting unit according to an embodiment of the present invention.

3 is a flowchart illustrating a method of automatically setting gain information according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110: receiver

120: extraction unit

130: gain information setting unit

140: output setting unit

150: judgment

210: transmitter gain information setting unit

220: receiver gain information setting unit

Claims (21)

A receiver for receiving output setting information; A detector for detecting input level information through the input level detecting element; A gain information setting unit for automatically setting gain information based on the output setting information and the detected input level information Including, The gain information setting unit The transmitter gain information is automatically set based on the output setting information and the input level information, and the receiver gain information is automatically obtained by subtracting a preset value for adjusting the receiver gain information from the transmitter gain information. Gain information automatic setting device to be set. The method of claim 1, The output setting information, A gain information automatic setting device including information related to an automatic level control function. 3. The method of claim 2, The automatic level control function related information, A device for automatically setting gain information including automatic level control reference level information (ALC reference level) and automatic level control attenuation (ALC Atten). The method of claim 3, The gain information setting unit includes a transmitter gain information setting unit which automatically sets the transmitter gain information based on the output setting information and the detected input level information. Gain setting apparatus for automatically setting the transmitter gain information by the following equation (3) using the transmitter gain information setting unit. Transmitter Gain Information = Automatic Level Control Reference Level Information (ALC reference Level) + Automatic Level Control Attenuation Information (ALC Atten)-Input Level Information The method of claim 1, The input level information is Gain information automatic setting device that is information that detects the strength of the input signal received through the receiving unit in a predetermined unit. delete delete delete The method of claim 1, And a determining unit determining whether the output setting information is normally set according to the setting of the transmitter gain information and the receiver gain information. And the determination unit controls to detect the input level information again when the output setting information is not normally set. Receiving output setting information; Detecting input level information through the input level detecting element; Automatically setting gain information based on the output setting information and the detected input level information Including, Automatically setting the gain information, Automatically setting transmitter gain (Tx gain) information based on the output setting information and the input level information; And Automatically setting the receiver gain information by subtracting a predetermined value for adjusting the receiver gain information from the transmitter gain information Gain information automatic setting method comprising a. The method of claim 10, The output setting information, A method for automatically setting gain information including information related to an automatic level control function. The method of claim 11, The automatic level control function related information, A method for automatically setting gain information including automatic level control reference level information (ALC reference level) and automatic level control attenuation (ALC Atten). The method of claim 12, Automatically setting the transmitter gain information, A method for automatically setting gain information for setting the transmitter gain information by Equation 4 below. Transmitter Gain Information = Automatic Level Control Reference Level Information (ALC reference Level) + Automatic Level Control Attenuation Information (ALC Atten)-Input Level Information The method of claim 10, The input level information is A method of automatically setting gain information which is information obtained by detecting an intensity of a received input signal in a predetermined unit. delete delete delete The method of claim 13, Setting a reference level according to the automatic level control function related information when the transmitter gain information and the receiver gain information are set Gain information automatic setting method further comprising. The method of claim 18, When the reference level is set according to the automatic level control function related information, Setting one or more of the automatic level control reference level information (ALC reference level), the automatic level control attenuation information (ALC Atten: Auto Level control Atten), and an operating output setting range (ALC window size) Gain information automatic setting method further comprising. The method of claim 10, Determining whether the output setting information is normally set according to the setting of the transmitter gain information and the receiver gain information; And If the output setting information is not normally set, controlling to detect the input level information again. Gain information automatic setting method further comprising. 21. A computer readable recording medium having recorded thereon a program for performing the method of any one of claims 10-14 or 18-20.

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