KR101052175B1 - Apparatus and method for mobile communication signal relay using CYPEN reserve circuit - Google Patents

Abstract

Disclosed is a mobile communication signal relay apparatus using a CPN reserve line. A mobile communication signal relay apparatus using a CPN spare line receives a mobile communication signal from a mobile communication base station and outputs a converted mobile communication signal in which the frequency band of the mobile communication signal is adjusted to match the frequency band of the CPN spare line. At least one mobile terminal for receiving a communication signal relay station and the converted mobile communication signal through the CPN reserve line, readjusting a frequency band of the received converted mobile communication signal, and transferring the converted mobile communication signal to the mobile communication terminal as the mobile communication signal. A communication signal relay station is provided.

Description

Mobile communication repeater using Customer Premises Network reserved line and method

The present invention relates to a mobile communication signal relay apparatus and method using CPN (Customer Premises Network) preliminary line, in particular, a mobile communication signal relay apparatus and method for solving the shadow area of mobile communication using the CPN preliminary line in a multi-family house, etc. It is about.

In the case of the occurrence of mobile communication shaded areas in the building and the basement, in order to solve the problem, conventionally, the optical communication or RF coaxial cable was installed to relay the mobile communication signal. However, such a relay method requires a lot of cost and time when the optical cable or RF coaxial cable is installed, and the relay device is expensive. In addition, when the main carriers pass through the optical line, fixed maintenance costs are incurred due to the line rental cost.

Therefore, development of a method for relaying a mobile communication signal without providing a separate cable is required.

The technical problem to be solved by the present invention is to solve the shadow area of the mobile communication signal by using an unused spare line of the CPN line installed in the new building, the mobile communication signal that can be built at low cost by adopting a low-cost light emitting device It provides a relay apparatus and method.

In the mobile communication signal relay apparatus using a CPN reserve line according to an embodiment of the present invention, in the mobile communication signal relay apparatus using a CPN reserve line,

A mobile communication signal relay station for receiving a mobile communication signal from a mobile communication base station and outputting a converted mobile communication signal in which the frequency band of the mobile communication signal is adjusted to match the frequency band of the CPN reserve line; And at least one mobile communication signal relay device for receiving the converted mobile communication signal through the CPN reserve line, re-adjusting the frequency band of the received converted mobile communication signal, and transmitting the converted mobile communication signal to the mobile communication terminal as the mobile communication signal. It is provided.

The mobile communication signal relay station is a mother station antenna for transmitting and receiving the mobile communication signal; A mother station transmit / receive filter for separating the mobile communication signal received from the mother antenna and the mobile communication signal transmitted to the mother antenna using a frequency difference; A mother station down converter for lowering a frequency band of the mobile communication signal outputted from the mother station transmitting / receiving filter; A mother station estimating converter for raising a frequency band of the conversion mobile communication signal received through the CPN reserve line to a frequency band of the mobile communication signal; A mother station signal converter for converting the mobile communication signal outputted from the mother station down converter into the conversion mobile communication signal suitable for the CPN preliminary line, or transmitting the converted mobile communication signal input from the CPN preliminary line to the home station ascending converter. ; And a mother station processor to control operations of the mother station transmission / reception filter, the mother station down converter, the mother station up converter, and the mother station signal converter.

The mobile communication signal relay station further includes a mother power detector that detects the power of the mobile communication signal and provides the power to the home processor to compensate for the path loss of the mobile communication signal input from the mobile communication base station.

The mother signal converter includes: a mother country wavelength division multiplexing element that enables transmission and reception to the optical path when the CPN preliminary line is an optical path; A mother light emitting device for converting the mobile communication signal output from the mother down converter into the conversion mobile communication signal which is an optical signal and outputting the converted mobile communication signal to the mother wavelength division multiplexing device; And a mother light receiving device for converting the converted mobile communication signal outputted from the optical path through the mother wavelength division multiplexing device into the mobile communication signal.

The mother signal converter may include: a mother frequency division multiplexing device that enables transmission and reception to the UTP line when the CPN preliminary line is a UTP line; And a mother impedance converter for matching the impedance of the mobile communication signal with the impedance of the UTP line, wherein the mother impedance converter is implemented using BALUN (Balanced-Unbalanced).

The mother station ascending converter and the mother station down converter are the mother station whose gain ratio is controlled by the mother processor unit to compensate for the loss according to the path loss of the mobile communication signal or the length of the CPN spare line of the conversion mobile communication signal. A variable gain amplifier is provided.

The mobile communication signal relay station may include a local transmission / reception filter for separating the mobile communication signal received from the mobile communication terminal and the mobile communication signal transmitted to the mobile communication terminal using a frequency difference; A local descending converter for lowering a frequency band of the mobile communication signal outputted from the local transmission / reception filter; A local boost converter for raising a frequency band of the converted mobile communication signal received through the CPN reserve line to a frequency band of the mobile communication signal; Converts the converted mobile communication signal inputted from the CPN reserve line into the mobile communication signal and transmits the converted mobile communication signal to the local station up-conversion converter, or converts the mobile communication signal output from the local station down converter into the CPN reserve line; Local signal converter for converting into signals; And a local processor for controlling the operations of the local transmission / reception filter, the local station down converter, the local station up converter, and the local station signal converter.

The mobile communication signal relay station detects and provides the power of the mobile communication signal to the local processor unit in order to compensate for the loss according to the length of the CPN spare line of the converted mobile communication signal inputted from the CPN spare line. It further comprises a local power detector.

The local signal converter may include a local wavelength division multiplexing element that enables transmission and reception to the optical path when the CPN preliminary line is an optical path; A local light emitting device for converting the mobile communication signal output from the local station down converter into the conversion mobile communication signal as an optical signal and outputting the converted mobile communication signal to the local wavelength division multiplexing device; And a local light receiving element for converting the converted mobile communication signal output from the optical path through the local wavelength division multiplexing device into the mobile communication signal.

The local signal converter may include a local frequency division multiplexing element that enables transmission and reception to the UTP line when the CPN preliminary line is a UTP line; And a local impedance converter for matching the impedance of the mobile communication signal with the impedance of the UTP line, wherein the local impedance converter is implemented using BALUN (Balanced-Unbalanced).

The local station up-converter and the local station down-transformer, the local station whose gain ratio is controlled by the local processor unit to compensate for the loss according to the path loss of the mobile communication signal or the length of the CPN spare line of the conversion mobile communication signal A variable gain amplifier is provided.

In a mobile communication signal relay method using a CPN reserve line according to another embodiment of the present invention, receiving a mobile communication signal from a mobile communication base station, and adjusts a frequency band of the mobile communication signal to match a frequency band of the CPN reserve line. Outputting the converted mobile communication signal, receiving the converted mobile communication signal through the CPN preliminary line, and re-adjusting the frequency band of the received converted mobile communication signal to the mobile communication terminal as the mobile communication signal; It is equipped with a step.

The mobile communication signal relay apparatus and method using a CPN reserve line according to an embodiment of the present invention can solve a radio shadow area generated in a multi-family house, a multi-family house, a single house, a large building, and the like.

In addition, since the CPN preliminary line installed with the new building is used, there is no need to install a communication line for the relay device separately, thereby reducing initial installation time and cost, and no additional maintenance cost is incurred.

In addition, the mobile communication signal relay apparatus using the CPN reserve line according to an embodiment of the present invention can be utilized as a relay device for other wireless services introduced in the future by expanding the frequency band of the CPN reserve line. That is, there is an advantage that it can be widely used for the purpose of relaying the GPS signal or for terminating the terrestrial DMB signal through the CPN reserve line.

DETAILED DESCRIPTION Embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art can easily understand, the embodiments described below may be modified in various forms without departing from the spirit and scope of the invention.

1 is a block diagram of a mobile communication signal relay apparatus 100 using a CPN reserve line according to an embodiment of the present invention.

Referring to FIG. 1, the mobile communication signal relay apparatus 100 using the CPN reserve line according to an embodiment of the present invention receives a mobile communication signal from the mobile communication base station 101, and the frequency of the CPN reserve line 103. A mobile communication signal relay station 102 for outputting a converted mobile communication signal in which the frequency band of the mobile communication signal is adjusted to fit the band and the converted mobile communication signal are received through the CPN reserve line 103. At least one mobile communication signal relay device station 104 which readjusts the frequency band of the converted mobile communication signal and delivers it to the mobile communication terminal 105 as the mobile communication signal.

Mobile communication signal relay station 104 may be connected to a plurality of mobile communication signal relay station 102, only one is shown in FIG.

As shown in FIG. 1, the mobile communication signal relay station 102 converts the mobile communication signal transmitted from the mobile communication base station 101 into a converted mobile communication signal suitable for the CPN spare line frequency band. The converted mobile communication signal is transmitted to the mobile communication signal relay station 104 through the CPN reserve line 103. The mobile communication signal relay station 104 converts the converted mobile communication signal into a mobile communication signal and transmits it to the mobile communication terminal 105.

On the contrary, in transmitting the transmission signal of the mobile communication terminal 105, the mobile communication signal relay station 104 converts the mobile communication signal output from the mobile communication terminal 105 to the CPN reserve circuit 103. A mobile communication signal is converted and transmitted through the CPN reserve line 103. The mobile communication signal relay station 102 receives the converted mobile communication signal, converts it into a mobile communication signal, and transmits it to the mobile communication base station 101.

The relay device 100 according to the embodiment of the present invention uses a CPN reserve line 103 installed when a building is newly constructed in a multi-family house or a multi-family house. The relay device 100 transmits a mobile communication signal to the CPN reserve circuit 103 that is not in use, and can reduce the cost and time required for installation work by using an optical line or a UTP line that has been previously installed for CPN. Since the landowner (user) owns the line, there is an advantage that there is no separate rental fee. In case of CPN, 4 strands of optical cores and 4 strands of UTP lines are installed in the case of a special certified apartment, and the relay device 100 of the present invention does not use a main line that is used for digital subscriber line (DSL) or Internet TV. By using the reserve line, the mutual interference and influence between services can be excluded at the source.

FIG. 2 is a configuration diagram of the mobile communication signal relay station shown in FIG.

Referring to FIG. 2, the mobile communication signal relay station 102 is connected to a base station antenna 201 which performs transmission and reception of a mobile communication signal, and the mobile communication signal received from the base station antenna 201 using a frequency difference. A mother station receiving filter 202 for separating the mobile communication signal transmitted to the mother antenna 201, a mother station down converter 203 for lowering the frequency band of the mobile communication signal output from the mother station receiving filter 202, and CPN. CPN preliminary circuit for the mobile communication signal output from the mother station up converter 204, the mother down converter 203 for raising the frequency band of the conversion mobile communication signal received through the reserve line 103 to the frequency band of the mobile communication signal A mother station signal converter (2) for converting the converted mobile communication signal suitable for (103) or for transmitting the converted mobile communication signal input from the CPN reserve circuit (103) to the mother station up-converting converter (204). 05) and a mother station processor 206 for controlling the operation of the mother station transmission / reception filter 202, the mother station down converter 203, the mother station up converter 204, and the mother station signal converter 205.

The mobile communication signal relay station 102 detects and provides the power of the mobile communication signal to the mother station processor 206 to compensate for the path loss of the mobile communication signal input from the mobile communication base station 101. A mother power detector 207 is further provided.

That is, the mother station power detector 207 emits the mother station of FIG. 3 to compensate for the spatial path loss of the mobile communication signal that may occur in the forward movement of the mobile communication signal from the mobile communication base station 101 to the relay station main station 102. The power of the mobile communication signal before being input to the element 402 is detected.

FIG. 3 is a view for explaining the structure of the mother station signal converter of FIG. 2 when the CPN spare line is an optical line.

The mother station signal converter 205 uses the mobile communication signal output from the mother country wavelength division multiplexing element 401 and the mother country down converter 203 to enable transmission and reception in the optical path when the CPN preliminary line 103 is an optical path. Converting the converted mobile communication signal, which is an optical signal, to the mother wavelength division multiplexer 401 and outputting to the mother wavelength division multiplexer 401, and the conversion mobile communication signal outputted from the optical path through the mother wavelength division multiplexer 401; A mother light receiving element 403 for converting into a mobile communication signal is provided. If the optical path is used in the CPN spare line 103, the mobile communication signal must be converted into an optical signal or the optical signal must be converted into a mobile communication signal.

Accordingly, the mother light emitting device 402 converts the mobile communication signal coming through the mother antenna 201 into an optical signal that can pass through the CPN spare line 103, that is, the optical path. The mother light emitting device 402 converts a mobile communication signal into an optical signal (conversion mobile communication signal) by using a principle in which the brightness of light is changed according to an input signal. On the contrary, in order to convert the optical signal (conversion mobile communication signal) input from the optical path into the mobile communication signal, the mother station light receiving element 403 is used. The mother wavelength division multiplexing device 401 performs a function of separating and transmitting the signal using the wavelength difference between the signal output from the CPN preliminary line 103 and the signal input from the CPN preliminary line 103.

The DFB light emitting device used in the conventional optical repeater class has a long transmission distance and excellent performance, but the price is high, so it is not suitable for eliminating the shadow area of individual furniture. Accordingly, the present invention solves the cost problem by using a low-cost FP light emitting device and a light receiving device.

FIG. 4 is a diagram for explaining the structure of the mother signal converter of FIG. 2 when the CPN reserve line is a UTP line.

The mother signal converter 205 matches an impedance of a mother frequency division multiplexing element (not shown) and a mobile communication signal that allow transmission and reception to a UTP line when the CPN reserve line is a UTP line, and an impedance of the UTP line. A mother impedance converter 300 is provided, and the mother impedance converter 300 is implemented using BALUN (Balanced-Unbalanced).

Impedance of mobile communication signal is generally about 50 ohm in case of RF radio signal. Therefore, since the impedance of UTP line and mobile communication signal do not match, the loss caused by impedance mismatch occurs largely when connected as it is. In order to prevent this, a mother impedance converter 300 using an impedance matching circuit is required.

The mother impedance converter 300 is implemented using BALUN (Balanced-Unbalanced), which is generally used to match when the impedance is significantly different. 4 is a schematic representation of the configuration of BALUN. As shown in FIG. 4, the signal transmitted and received through the UTP line has an impedance of 100 ohm, and the characteristics of the signal are in the form of a balanced signal having the center grounded. On the other hand, the mobile communication signal has an impedance of 50 ohms and one of the unbalanced signals must be grounded. The proper combination of these two signals is BALUN, which can be implemented with most transformers.

FIG. 5 is a diagram for explaining the configuration of the mother country down converter shown in FIG.

The mother station down converter 203 is a mother station whose gain ratio is controlled by the mother station processor 206 to compensate for the loss of the path of the mobile communication signal or the loss according to the length of the CPN reserve line 103 of the converted mobile communication signal. A variable gain amplifier 504 is provided.

Referring to Figure 5, the down converter 203 is a mixer for performing the function of converting the incoming mobile communication signal down 501, the frequency for the down-conversion to the band of the appropriate CPN reserve circuit 103 Local oscillator 502 performing the function of selecting, SAW filter 503 for removing signals other than the down-converted signal, and automatic path loss of the radio transmission section between the mobile communication base station 101 and the mother station 102. It consists of a mother variable gain amplifier 504 to compensate.

For example, if the frequency band of the mobile communication signal is a WCDMA signal of 2.16 GHz, this signal must be converted into a signal of the intermediate frequency band in order to transmit the CPN spare circuit band. If the intermediate frequency is assumed to be 60 MHz, which is commonly used in a mobile communication signal relay, the signal of the local oscillator 502 should be determined to be 2.1 GHz. At this time, the down-converted signal becomes 2.16 GHz-2.1 GHz = 0.06 GHz = 60 MHz.

In addition, the mother power detector 207 uses the power of the mobile communication signal input to the mother station signal converter 205 to compensate for the space path loss generated during the mobile communication signal from the mobile communication base station 101 to the mother station 102. The measured value is transmitted to the mother station processor 206. The mother station processor 206 stores the power value of the mobile communication signal when there is no space path loss, and compares it with the value input from the mother power detector 207 to determine the space path loss of the mobile communication signal. The mother station processor 206 compensates for the loss by adjusting the gain ratio of the mother variable gain amplifier 504 to amplify the signal output to the CPN spare line 103.

FIG. 6 is a view for explaining the configuration of the mother station up converter shown in FIG.

As shown in FIG. 6, when the CPN preliminary line 103 is an optical line, the mother country up-converter 204 performs a function of compensating for losses in the optical line. SAW filter 602 for precisely extracting only signals of mobile communication frequency band among signals transmitted through 103, mixer 603 for performing function of up-converting signals of CPN spare circuit frequency band to mobile communication signal, Local oscillator 604 generating a frequency to upconvert to a signal in the appropriate frequency band.

For example, when a conversion mobile communication signal has been transmitted in a frequency band of 60 MHz through the CPN reserve circuit 103, the local oscillator 604 uses 2.1 GHz to convert the signal into a mobile communication signal in the 2.16 GHz band. Should output the signal.

In case of transmission through optical line, loss of about 0.7dB occurs when transmitting 1Km. The function of automatically compensating for the loss of up to about 10 dB is performed by the mother variable gain amplifier 601. If 2 Km has to be transmitted, loss occurs about 2 dB. At this time, the mother processor unit 206 operates to automatically compensate for the loss of 2 dB by adjusting the gain ratio of the mother variable gain amplifier 601. At this time, the home power detector 207 may operate together.

The mother station transmit / receive filter 202 separates a transmission signal from a reception signal in a frequency division duplex (FDD) system using a single mother antenna 201. In the FDD signal, the same antenna is shared between the transmission signal and the reception signal with a frequency difference.

7 shows the characteristics of a signal of the FDD scheme. That is, it can be seen that the forward signal input from the mobile communication base station 101 to the mother station 102 and the reverse signal output from the mother station 102 to the mobile communication base station 101 are separated according to the frequency difference.

8 is a block diagram of the mobile communication signal relay station shown in FIG.

The mobile communication signal relay station 104 has a local transmission / reception filter for separating the mobile communication signal received from the mobile communication terminal 105 and the mobile communication signal transmitted to the mobile communication terminal 105 using a frequency difference ( 802, the local frequency converter 803 for lowering the frequency band of the mobile communication signal output from the local transmission and reception filter 802, the frequency band of the conversion mobile communication signal received through the CPN preliminary line 103 Converts the converted mobile communication signal inputted from the local station rising converter 804 and the CPN reserve circuit 103 into the mobile communication signal to be transmitted to the local station rising converter 804, or descends the local communication converter. Local signal converter 805, local station transmit / receive filter 802, local station for converting the mobile communication signal output from converter 803 into said converted mobile communication signal suitable for CPN preliminary line 103; And a converter 803, a local increase converter 804, a local processor unit 806 for controlling the operation of the station the signal converter 805. The

The mobile communication signal relay station 104 detects the power of the mobile communication signal to compensate for the loss along the length of the CPN spare line 103 of the converted mobile communication signal inputted from the CPN spare line 103. It further comprises a local power detector 807 to be provided to the local processor unit 806.

That is, in order to compensate for the signal loss along the length of the CPN spare line 103 that may occur until the transit communication signal reaches the relay station station 104 through the CPN reserve line 103, FIG. The power of the mobile communication signal output from the self-receiving element 903 is detected.

FIG. 9 is a diagram for explaining the structure of the mother station signal converter of FIG. 8 when the CPN spare line is an optical line. FIG.

The local station signal converter 805 is the mobile communication output from the local wavelength division multiplexing element 901 and the local station down converter 803 which enable transmission and reception in the optical path when the CPN preliminary line 103 is an optical path. The conversion mobile communication output through the local light emitting device 902, which converts a signal into the conversion mobile communication signal that is an optical signal, and outputs it to the local wavelength division multiplexing device 901, and the local wavelength division multiplexing device 901 from an optical path. A local light receiving element 903 for converting a signal into the mobile communication signal is provided.

The mobile communication signal relay station 104 increases its frequency band to transmit the converted mobile communication signal transmitted through the CPN reserve circuit 103 to the mobile communication terminal 105, or vice versa. In order to output the mobile communication signal received from the C-PN to the preliminary line 103, the frequency band is changed to an intermediate frequency band.

The configuration and operation of the mobile communication signal relay station 104 are almost similar to the configuration and operation of the mobile communication signal relay station 102. Therefore, detailed description is omitted.

In addition, since the operation of the own station signal converter 805 is almost the same as that of the mother station signal converter 205, the detailed description thereof is omitted.

The local signal converter 805 is a local frequency division multiplexing element (not shown) that enables transmission and reception to the UTP line and the impedance of the mobile communication signal and the impedance of the UTP line when the CPN reserve line is a UTP line. It has a local impedance converter (not shown) for matching the, the local impedance converter is implemented using BALUN (Balanced-Unbalanced).

The own station up converter 804 and the own station down converter 803 are provided to the local processor unit 806 to compensate for the loss along the path loss of the mobile communication signal or the length of the CPN reserve circuit 103 of the converted mobile communication signal. And a local variable gain amplifier (not shown) whose gain ratio is controlled by the same. Since the local rising converter 804 and the local falling converter 803 are similar in structure and operation to the mother falling converter 203 and the mother rising converter 204 shown in FIGS. 5 and 6, detailed description thereof will be omitted.

The overall operation of the mobile communication signal relay 100 using the CPN reserve line will be described in detail as follows.

First, a forward operation of transmitting a signal transmitted from the mobile communication base station 101 to the mobile communication terminal 105 will be described first. The mobile communication signal relay station base station 102 and the mobile communication signal relay station station 104 are installed at appropriate locations and connected through the CPN reserve line 103.

The mother station transmit / receive filter 202 extracts only a transmission signal and transfers it to the mother station down converter 203. The mother station down converter 203 converts a high frequency signal into a low frequency signal suitable for the CPN preliminary line 103 and at the same time the mobile communication base station ( 101 automatically compensates for the path loss of the radio transmission interval between the base station 102 and the mother station 102. At this time, the home power detector 207 operates.

The low frequency signal is converted into a conversion mobile communication signal which is a signal suitable for transmission through the CPN reserve line 103 in the mother signal converter 205 and is transmitted to the mobile communication signal relay station 104. The mobile communication signal repeater device local station 104 receives a signal from the local station signal converter 805 and converts the signal into a mobile communication signal. The converted mobile communication signal is converted into a high frequency signal by the local station converter 804 and transferred to the mobile communication terminal 105 through the antenna 801 through the local transmit / receive filter 802.

The local transmit / receive filter 802 and the mother transmit / receive filter 202 are bandpass filters having sharp cutoff characteristics for distinguishing a transmission channel from a reception channel in the FDD scheme.

Since the backward signal transmission from the mobile communication terminal 105 to the mobile communication base station 101 is the same as the above-described forward signal transmission process, a detailed description thereof will be omitted.

As such, the mobile communication signal relay device 100 using the CPN reserve line according to an embodiment of the present invention is a new building without a separate optical cable or coaxial cable wiring in a shadow area generated in a multi-family house or a multi-family / single-family house. Since it solves by using the installed CPN reserve line, it saves installation cost and time.

In addition, the mobile communication signal relay apparatus 100 using the CPN reserve line according to an embodiment of the present invention by using the CPN reserve line frequency band, by securing the frequency band in the CPN reserve line of other wireless services introduced in the future It can also be used as a relay device.

10 is a diagram for explaining that a plurality of marks are connected to one mother station.

In addition, the mobile communication signal relay apparatus using the CPN reserve line according to an embodiment of the present invention provides an advantage that a plurality of stations 1006 and 1007 may be connected to one mother station 1002. That is, the shadow area can be efficiently improved by connecting a plurality of marks 1006 and 1007 to one mother station 1002 using the CPN preliminary line 1005 wired to each household.

In the mobile communication relay apparatus using the CPN reserve line according to the present invention, the mother station 1002 and a plurality of local stations 1006 and 1007 can be simply connected by using a low-cost signal distributor 1004. In this case, when the optical line is used, the forward signal transmitted from the mobile communication base station 1001 to the subscriber stations 1008 and 1009 uses the same wavelength, but the signal transmitted from the subscriber station 1008 and 1009 to the mobile communication base station 1001 Different wavelengths are used to reduce mutual interference.

As another embodiment of the present invention, a mobile communication signal relay method using a CPN reserve line is described.

The mobile communication signal relaying method using a CPN reserve line generally includes receiving a mobile communication signal from a mobile communication base station, and converting the converted mobile communication signal whose frequency band of the mobile communication signal is adjusted to match the frequency band of the CPN reserve line. Outputting, receiving the converted mobile communication signal through the CPN preliminary line, and adjusting the frequency band of the received converted mobile communication signal and transmitting the converted mobile communication signal to the mobile communication terminal as the mobile communication signal.

Here, the receiving of the mobile communication signal from the mobile communication base station and outputting the converted mobile communication signal in which the frequency band of the mobile communication signal is adjusted to match the frequency band of the CPN reserve line are performed in the mother station 102. Receiving the converted mobile communication signal through the CPN preliminary line and re-adjusting the frequency band of the received converted mobile communication signal and transmitted to the mobile communication terminal as the mobile communication signal performed by the local station 104 do.

In detail, the outputting of the converted mobile communication signal may include: lowering a frequency band of the mobile communication signal to match a bandwidth of the CPN spare line, and when the type of the CPN spare line is an optical path, the frequency band is Converting the lowered signal into an optical signal and outputting the converted mobile communication signal, and if the CPN reserve line is a UTP line, adjusting the impedance of the lowered signal to output the converted mobile communication signal; Equipped.

The step of lowering the frequency band of the mobile communication signal to match the bandwidth of the CPN reserve line is performed by the mother descending converter 203, and when the type of the CPN reserve line is an optical path, the frequency band is lowered. Converting into an optical signal and outputting the converted mobile communication signal, and when the CPN reserve line is a UTP line, adjusting the impedance of the signal whose frequency band is lowered and outputting the converted mobile communication signal may include a mother station signal converter ( 205).

Since the operation of the mother drop converter 203 and the operation of the mother signal converter 205 have already been described, a detailed description thereof will be omitted.

In addition, the step of transmitting to the mobile communication terminal is a step performed in the local station 104, when the CPN preliminary line is an optical path, converts the converted mobile communication signal, which is the optical signal, into the mobile communication signal, and outputs the converted signal. When the CPN reserve line is a UTP line, re-adjusting the impedance of the converted mobile communication signal with an adjusted impedance and outputting the converted mobile communication signal as the mobile communication signal and receiving the frequency band of the mobile communication signal by the mobile communication terminal. And raising the frequency band of the mobile communication signal and transmitting the mobile communication signal whose frequency has been increased to the mobile communication terminal.

When the CPN preliminary line is an optical path, the converted mobile communication signal, which is the optical signal, is converted into the mobile communication signal and outputted, and when the CPN preliminary line is a UTP line, the impedance of the converted mobile communication signal whose impedance is adjusted The step of re-adjusting and outputting the mobile communication signal as the mobile communication signal is performed by the local station signal converter 805 and raising the frequency band of the mobile communication signal to the frequency band of the mobile communication signal that can be received by the mobile communication terminal. And transmitting the mobile communication signal having the increased frequency to the mobile communication terminal in the local station converter 804 and the local station transmit / receive filter 802, respectively.

Since the operations of the local signal converter 805, the local station converter 804, and the local station transmit / receive filter 802 have already been described, a detailed description thereof will be omitted.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the range of.

1 is a block diagram of a mobile communication signal relay apparatus using a CPN reserve line according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of the mobile communication signal relay station shown in FIG.

FIG. 3 is a view for explaining the structure of the mother station signal converter of FIG. 2 when the CPN spare line is an optical line.

FIG. 4 is a diagram for explaining the structure of the mother signal converter of FIG. 2 when the CPN reserve line is a UTP line.

FIG. 5 is a diagram for explaining the configuration of the mother country down converter shown in FIG.

FIG. 6 is a view for explaining the configuration of the mother station up converter shown in FIG.

7 shows the characteristics of a signal of the FDD scheme.

8 is a block diagram of the mobile communication signal relay station shown in FIG.

FIG. 9 is a diagram for explaining the structure of the mother station signal converter of FIG. 8 when the CPN spare line is an optical line. FIG.

10 is a diagram for explaining that a plurality of marks are connected to one mother station.

Claims (14)

In the mobile communication signal relay apparatus using a CPN reserve line, A mobile communication signal relay station for receiving a mobile communication signal from a mobile communication base station and outputting a converted mobile communication signal in which the frequency band of the mobile communication signal is adjusted to match the frequency band of the CPN reserve line; And At least one mobile communication signal relay station receiving the converted mobile communication signal through the CPN preliminary line, re-adjusting the frequency band of the received converted mobile communication signal, and transmitting the converted mobile communication signal to the mobile communication terminal as the mobile communication signal; Equipped, The mobile communication signal relay station, A mother station antenna for transmitting and receiving the mobile communication signal; A mother station transmit / receive filter for separating the mobile communication signal received from the mother antenna and the mobile communication signal transmitted to the mother antenna using a frequency difference; A mother station down converter for lowering a frequency band of the mobile communication signal outputted from the mother station transmitting / receiving filter; A mother station estimating converter for raising a frequency band of the converted mobile communication signal received through the CPN reserve line to a frequency band of the mobile communication signal;  A mother station signal converter for converting the mobile communication signal outputted from the mother station down converter into the conversion mobile communication signal suitable for the CPN preliminary line, or transmitting the converted mobile communication signal input from the CPN preliminary line to the home station ascending converter. ; And And a mother station processor for controlling the operation of the mother station transmission / reception filter, the mother station down converter, the mother station up converter, and the mother station signal converter. delete The apparatus of claim 1, wherein the mobile communication signal relay station comprises: In order to compensate for the path loss of the mobile communication signal inputted from the mobile communication base station, the mobile station further comprises a mother power detector which detects the power of the mobile communication signal and provides the power to the home station processor. Communication signal repeater. The method of claim 1, wherein the mother signal converter, A mother wavelength division multiplexing device that enables transmission and reception to the optical path when the CPN preliminary line is an optical path; A mother light emitting device for converting the mobile communication signal output from the mother down converter into the conversion mobile communication signal which is an optical signal and outputting the converted mobile communication signal to the mother wavelength division multiplexing device; And And a mother light receiving device for converting the converted mobile communication signal outputted from the optical path through the mother wavelength division multiplexing device into the mobile communication signal. The method of claim 1, wherein the mother signal converter, A mother frequency division multiplexing element for enabling transmission and reception to the UTP line when the CPN reserve line is a UTP line; And It is provided with a mother impedance converter for matching the impedance of the mobile communication signal and the impedance of the UTP line, The mother impedance converter is BALUN (Balanced-Unbalanced) Mobile communication signal relay apparatus using a CPN spare line, characterized in that implemented. According to claim 1, wherein the mother rising converter and the mother falling converter, CPN characterized in that it comprises a mother variable gain amplifier whose gain ratio is controlled by the mother station processor to compensate for the loss of the path of the mobile communication signal or the length of the CPN spare line of the conversion mobile communication signal. Mobile communication signal repeater using a reserve line. The apparatus of claim 1, wherein the mobile communication signal relay station includes: A local transmit / receive filter for separating the mobile communication signal received from the mobile communication terminal and the mobile communication signal transmitted to the mobile communication terminal using a frequency difference. A local descending converter for lowering a frequency band of the mobile communication signal outputted from the local transmission / reception filter;  Converts the converted mobile communication signal inputted from the CPN reserve line into the mobile communication signal and transmits the converted mobile communication signal to a local station converter, or converts the mobile communication signal output from the local station down converter into the CPN reserve line A local signal converter for converting the signal into a signal; A local boost converter for raising a frequency band of the mobile communication signal output from the local signal converter through the CPN reserve line to a frequency band of the mobile communication signal that can be received by the mobile communication terminal; And And a local processor unit for controlling the operations of the local transmission / reception filter, the local station down converter, the local station up converter, and the local station signal converter. The apparatus of claim 7, wherein the mobile communication signal relay station is And a local power detector which detects the power of the mobile communication signal and provides it to the local processor unit to compensate for the loss according to the length of the CPN spare line of the converted mobile communication signal inputted from the CPN reserve line. Mobile communication signal relay apparatus using a CPN reserve line. According to claim 7, wherein the local signal converter, A local wavelength division multiplexing device that enables transmission and reception to the optical path when the CPN preliminary line is an optical path; A local light emitting device for converting the mobile communication signal output from the local station down converter into the conversion mobile communication signal as an optical signal and outputting the converted mobile communication signal to the local wavelength division multiplexing device; And And a local light receiving element for converting the converted mobile communication signal outputted from the optical path through the local wavelength division multiplexing device into the mobile communication signal. According to claim 7, wherein the local signal converter, A local frequency division multiplexing element that enables transmission and reception to the UTP line when the CPN reserve line is a UTP line; And It has a local impedance converter for matching the impedance of the mobile communication signal and the impedance of the UTP line, The domestic impedance converter is a mobile communication signal relay device using a CPN reserve line, characterized in that implemented using BALUN (Balanced-Unbalanced). The method of claim 7, wherein the local rising converter and the local falling converter, CPN, characterized in that it comprises a local variable gain amplifier whose gain ratio is controlled by the local processor unit to compensate for the loss of the path of the mobile communication signal or the length of the CPN reserve line of the conversion mobile communication signal. Mobile communication signal repeater using a reserve line. In the mobile communication signal relay method using a CPN reserve line, Receiving a mobile communication signal from a mobile communication base station; Outputting a converted mobile communication signal in which the frequency band of the mobile communication signal is adjusted to match the frequency band of the CPN reserve line; Receiving the converted mobile communication signal through the CPN reserve line; And And re-adjusting the frequency band of the received conversion mobile communication signal to the mobile communication terminal as the mobile communication signal, Outputting the conversion mobile communication signal, Lowering the frequency band of the mobile communication signal to match the bandwidth of the CPN reserve line; When the type of the CPN preliminary line is an optical path, the signal whose frequency band is lowered is converted into an optical signal and output as the conversion mobile communication signal, And if the CPN reserve line is a UTP line, adjusting the impedance of the signal whose frequency band has been lowered and outputting the converted mobile communication signal as the converted mobile communication signal. delete The method of claim 12, wherein the transferring to the mobile communication terminal comprises: When the CPN preliminary line is an optical path, converts the converted mobile communication signal, which is the optical signal, into the mobile communication signal, and outputs the converted mobile communication signal. If the CPN reserve line is a UTP line, re-adjusting an impedance of the converted mobile communication signal whose impedance is adjusted and outputting the same as the mobile communication signal;  Raising the frequency band of the mobile communication signal to a frequency band of the mobile communication signal that the mobile communication terminal can receive; And And transmitting the mobile communication signal whose frequency has been increased to the mobile communication terminal.

Images