KR102131750B1 - Method and Apparatus for Sharing Feeder of Base Station, And Base Station Apparatus Using the Same - Google Patents

Abstract

The present invention relates to an apparatus and method for sharing a feeder of a base station, and more specifically, to install a coupler for sharing a feeder line to a feeder line of an existing base station, and converting two frequencies respectively connected to the antenna unit and the radio signal processor to the combiner. By connecting the parts and sharing the feeder lines of a pre-installed base station, it is possible to construct a new base station without additionally installing a feeder line to connect the antenna part and the wireless signal processing part, thereby enabling Massive MIMO without complicated aerial configuration according to Massive MIMO construction. By transmitting the RF signal, it is possible to solve the investment cost reduction due to stable service operation and additional installation of feeder lines, and to solve the installation difficulties due to the increase in the size and weight of equipment that can occur when using a rectifier, RRU, and antenna-integrated equipment. , It can solve the drawbacks that it was difficult to replace in real time when a failure occurred.

Description

Base station feeder sharing device and method, and base station device using same {Method and Apparatus for Sharing Feeder of Base Station, And Base Station Apparatus Using the Same}

The present invention relates to a base station feeder sharing device and method, and more particularly, to a base station feeder sharing device and method enabling the construction of a new base station without additionally installing a feeder, and a base station apparatus using the same.

The contents described in this section merely provide background information for this embodiment, and do not constitute a prior art.

With the development of mobile communication technology, the spread of smart phones has become popular, and smart phones have become a necessity of life for modern people.

Downloading of content such as movies, music and applications through smartphones and real-time streaming services are also increasing rapidly. As such, as the transmission of large-capacity content increases, it is required to build a mobile communication network with a faster transmission speed, and in response to these demands, the mobile communication network goes through 2G and 3G, and LTE (Long-Term Evolution) and LTE, which are the 4th generation mobile communication. -A (Long-Term Evolution Advanced) has been developed, and research for the 5th generation mobile communication network (5G) era is being actively conducted.

However, as mobile communication network technology has been implemented from the 2nd to the 5th generation, a number of base stations are installed in the same place, and due to this situation, the place and cost constraints for installing a new base station are gradually increasing. .

Particularly, in order to implement Massive Multiple Input Multiple Output (MIMO), which is a core technology for building 5G technology, the on-site aerial configuration becomes very complicated, and the above problems become a major issue for additional base station installation.

In order to solve this, a radio signal processing unit (RF unit) of the base station and an antenna-integrated RRU (Remote RF Unit) having an antenna are developed to implement the RF unit, antenna, and rectifier in the same system, but in the case of such an integrated RRU, Due to the size and weight of the equipment, there are disadvantages in that it is difficult to additionally install in a place where 2G to 4G are installed, and there is a greater risk of failure compared to existing passive antennas, and it is still difficult to replace and repair equipment in real time when a failure occurs.

Korean Patent Publication No. 10-2013-0092296 (Name: Feeder sharing device in mobile communication system, publication date 2013.08.20.)

In order to solve the above-mentioned problems, the present invention solves the problem of implementing the aerial by sharing the feeder lines of the already installed base station when installing a new base station, and can easily replace and repair real-time equipment when a failure occurs in the wireless signal processing unit and the rectifier. It is intended to provide a base station feeder sharing device and method, and a base station apparatus using the same.

Particularly, the RF signal is converted into an IF signal through one frequency converter connected to the antenna unit or the wireless signal processor, and the converted IF signal is input to another frequency converter through a coupler installed on a feeder line of a pre-installed base station and then IF again. By converting the signal to RF signal, it provides a mobile communication service stably without signal interference with a pre-installed base station, while reducing the installation cost of installing a new base station and solving the aerial complexity problem that may occur while installing a MIMO antenna. We propose a propagation sharing device and method, and a base station device using the same.

However, the object of the present invention is not limited to the above object, and other objects not mentioned will be clearly understood from the following description.

The base station feeder sharing device of the present invention for achieving the above object connects at least one feeder line connecting at least one pre-installed first radio signal processing unit and at least one first antenna unit to a first frequency converter. At least one first combiner, at least one second combiner connecting the at least one feeder line with a second frequency converter, and a radio frequency (RF) signal received from a second radio signal processor having different bands, respectively. A first frequency that is converted to at least one IF (Intermediate Frequency) signal and transmitted to the first combiner, and converts at least one IF signal received from the first combiner into an RF signal and transmits it to the second radio signal processor. The RF (Radio Frequency) signal received from the converter and the second antenna unit is converted into at least one IF (Intermediate Frequency) signal having different bands and transmitted to the second coupler, and received from the second coupler. And a second frequency converter that converts at least one IF signal into an RF signal and delivers it to the second antenna unit.

At this time, the first and second frequency converters include a plurality of frequency converters for converting the frequency band of the input signal, and the plurality of frequency converters receive the RF signal and have a frequency band corresponding to each frequency converter. A first mixer for converting the IF signal and a second mixer for receiving the IF signal having a frequency band corresponding to each frequency converter and converting the IF signal may be included, and the second antenna unit or the second mixer may be included. The number of aerials to transmit the signal is calculated based on the number of signals having a signal strength exceeding a preset threshold among at least one signal sensed by the wireless signal processor, and the calculated number of aerials and the number of shared feeders A band and the number of the IF signal to modulate a signal may be configured based on the first combiner, and at least one information among information on the band and number of the IF signal used when converting the signal from another frequency converter may be configured. Alternatively, the received IF signal may be input through a second combiner, and the converted IF signal may be converted into an RF signal based on the received information.

In addition, the IF signal band may be a frequency of a band lower than the lowest frequency band among the frequency bands transmitted by at least one base station sharing the feeder line in which the at least one first and second coupler is installed.

The base station feeder sharing method of the present invention for achieving the above object is a step in which a frequency converter receives an RF signal from a second antenna unit or a second wireless signal processing unit, and the received RF signals are different bands. Converting the IF signal into at least one IF signal, and connecting at least one feed line connecting the IF signal to at least one pre-installed first radio signal processor and at least one first antenna unit, respectively, to the frequency converter; It may include the step of transmitting to the other frequency converter through one combiner and the other frequency converter to convert the received IF signal into an RF signal.

At this time, the frequency converter includes a plurality of frequency converters for converting the frequency band of the input signal, and the plurality of frequency converters receive the RF signal and convert the IF signal into a frequency band corresponding to each frequency converter. It may include a first mixer to convert and a second mixer to receive the IF signal having a frequency band corresponding to each frequency converter and converts it to the RF signal.

Further, the one of the frequency converter detects at least one signal from the second antenna unit or the second radio signal processing unit, and calculates the number of signals having a signal strength exceeding a preset threshold among the detected signals. Calculating the number of aerials to transmit the signal based on the calculated number of signals and the intermediate frequency band and number to modulate a signal based on the calculated number of aerials and the number of shared feeders. The method may further include a step of configuring, and the step of transmitting to the other frequency converter through the at least one combiner further includes at least one of information on the number and number of IF signals used when converting the signal. And converting the IF signal into an RF signal may convert the converted IF signal into an RF signal based on the received information.

In addition, the IF signal band may be characterized in that it is a frequency of a band lower than the lowest frequency band among the frequency bands transmitted by at least one base station sharing the feeder line where the at least one combiner is installed.

The base station apparatus of the present invention for achieving the above is a second antenna unit for transmitting and receiving one or more RF signals, a second radio signal processing unit for processing the one or more RF signals, at least one pre-installed first radio processing unit and at least one At least one first coupler connecting at least one feeder line connecting each of the first antennas to the first frequency converter, at least one second coupler connecting the at least one feeder line to the second frequency converter First frequency conversion for converting the one or more RF signals output from the second wireless signal processing unit into one or more IF signals having different bands, and converting at least one IF signal received from the first combiner into an RF signal. Second frequency conversion for converting the one or more RF signals output from the second antenna unit into one or more IF signals having different bands, and converting at least one IF signal received from the second combiner into an RF signal. And a second radio signal processor for inputting and outputting the first and second RF signals and the first frequency converter.

In this case, the second antenna unit may be configured as a multiple input multiple output (MIMO) antenna.

According to the present invention, a coupler for sharing a feeder line is installed on a feeder line of a pre-installed base station, and the combiner converts a signal converted into an IF signal from one frequency converter connected to an antenna unit or a radio signal processor of a new base station into another. By transmitting to the frequency converter, it is possible to transmit a radio signal of a new base station without interference with a radio signal of a previously installed base station through a shared feeder line, and through this, a stable service is provided by transmitting a Massive MIMO RF signal without complicated aerial configuration according to Massive MIMO construction. It is possible to eliminate the reduction in investment costs due to the operation and additional installation of feeders.

In addition, the present invention allows the antenna unit and the radio signal processing unit of the new base station to be connected using a preset feeder line, thereby eliminating the need to use rectifier, RRU, and antenna-integrated equipment, resulting in increased equipment size and weight. Difficulties can be solved, and real-time field replacements can be resolved when a failure occurs.

In addition, various effects other than the above-described effects may be directly or implicitly disclosed in a detailed description according to an embodiment of the present invention to be described later.

1 is a configuration diagram showing the configuration of a feeder sharing device according to the present invention.
2 is a configuration diagram for explaining the configuration of the frequency converter according to the present invention.
3 is a configuration diagram for explaining the configuration of the frequency converter according to the present invention.
4 is an exemplary view for explaining an embodiment of sharing the feed lines of a plurality of pre-installed base stations in the present invention.
5 is a flowchart illustrating a method for sharing a feeder according to an embodiment of the present invention.

In order to clarify the features and advantages of the problem solving means of the present invention, the present invention will be described in more detail with reference to specific embodiments of the present invention shown in the accompanying drawings.

However, in the following description and attached drawings, detailed descriptions of well-known functions or configurations that may obscure the subject matter of the present invention are omitted. In addition, it should be noted that the same components throughout the drawings are indicated by the same reference numerals as much as possible.

The terms or words used in the following description and drawings should not be interpreted as being limited to ordinary or dictionary meanings, and the inventor can appropriately define the concept of terms for explaining his or her invention in the best way. Based on the principle of being present, it should be interpreted as meanings and concepts consistent with the technical spirit of the present invention. Therefore, the embodiments shown in the embodiments and the drawings described in this specification are only the most preferred embodiments of the present invention, and do not represent all of the technical spirit of the present invention, and can replace them at the time of this application. It should be understood that there may be equivalents and variations.

In addition, terms including ordinal numbers such as first and second are used to describe various components, and are used only for the purpose of distinguishing one component from other components, and to limit the components It is not used. For example, the second component may be referred to as a first component without departing from the scope of the present invention, and similarly, the first component may also be referred to as a second component.

In addition, the terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In addition, terms such as "comprises" or "have" described herein are intended to indicate that there are features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, or one or more thereof. It should be understood that the above or other features or numbers, steps, actions, components, parts or combinations thereof are not excluded in advance.

In addition, terms such as “part”, “group”, and “module” described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. In addition, "a (a or an)", "one (one)", "the (the)" and similar related terms in the context of describing the present invention (especially in the context of the following claims) is different herein. It may be used in a sense including both singular and plural unless indicated or clearly contradicted by context.

In addition to the above-mentioned terms, specific terms used in the following description are provided to help understanding of the present invention, and the use of these specific terms may be changed into other forms without departing from the technical spirit of the present invention.

Now, a base station feeder sharing device according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a configuration diagram for explaining the basic configuration of a base station feeder sharing device according to the present invention.

Referring to FIG. 1, in the present invention, a first base station 100 installed in order to share a feeder line includes a first rectifier 110, a first wireless signal processing unit 120, and a first antenna unit 130. Includes. Typically, the first antenna unit 130 is placed in a high place through a structure or the like, and the first wireless signal processing unit 120 and the first rectifier 110, etc., which are limited in weight and size, are placed in a low place. The first wireless signal processing unit 120 and the first antenna unit 130 are configured by connecting at least one feed line.

The pre-installed first base station 100 refers to a radio station that does not move after being established on land, on a rooftop, or on a pylon for communication with a land mobile station or by a relay of a mobile relay station, and the pre-installed base station 100 according to the present invention May be a base station transmitting and receiving a corresponding signal to support 2G, 3G and 4G communication including LTE, LTE-A, and the like.

The first rectifier 110 is a device for converting AC power into DC power to supply power to base station equipment, and the first wireless signal processing unit 120 transmits and receives RF to/from external communication equipment (wireless terminals, repeaters, etc.) Radio Frequency) is a device for processing signals.

The first antenna unit 130 is a device for transmitting or receiving electromagnetic waves to a space for transmitting and receiving radio signals, and is a Single Input Single Output (SISO), Single Input Multiple Output (SIMO), Multiple Input Single Output (MISO), MIMO (Multiple Input Multiple Output).

Similarly, the second base station 200 newly installed by using the feeder sharing method includes a second rectifier 210, a second wireless signal processing unit 220, and a second antenna unit 230. 2 A configuration for connecting the wireless signal processing unit 220 and the second antenna unit 230, and includes first and second frequency converters 240 and 250, and first and second couplers 260 and 270.

The second rectifier 210 converts AC power into DC power as the first rectifier 110 to supply power to the base station equipment, and the second wireless signal processing unit 220 and the first wireless signal processing unit 120 RF signals can be processed together.

The second antenna unit 230 transmits and receives wireless signals, and may be implemented in the form of SISO, SIMO, MISO, MIMO. In particular, when the newly installed base station is a base station for a 5G mobile communication network (5G), Massive MIMO It can be implemented in the form.

The first and second frequency converters 240 and 250 are devices for converting the input RF signal into an IF signal or converting the input IF signal into an RF signal.

The first frequency converter 240 is connected to the second wireless signal processor 220 and converts the RF signals received from the second wireless signal processor 220 into at least one IF signal having different bands, respectively. The signal is transmitted to the combiner 260, and at least one IF signal received from the first combiner 260 is converted into an RF signal and transmitted to the second wireless signal processing unit 220.

The second frequency converter 250 reversely performs signal processing of the first frequency converter 240. That is, the second frequency converter 250 is connected to the second antenna unit 230 and converts the RF signals received from the second antenna unit 230 into at least one IF signal having different bands, respectively. The signal is transmitted to the combiner 270, and at least one IF signal received from the second combiner 270 is converted into an RF signal and transmitted to the second antenna unit 230.

At this time, the frequency band of the IF signal that the first and second frequency converters 240 and 250 converts is an RF signal of a pre-installed base station 100 transmitted through a feeder line in which the first and second combiners 260 and 270 are installed. In order to remove an interference phenomenon that may occur between the first and second couplers 260 and 270, a frequency band having a band lower than a frequency band transmitted by a pre-installed base station 100 sharing a feed line may be used.

That is, if the pre-installed base station 100 transmits a signal using a 2.1Ghz band for 4G communication, 1.5Ghz, a frequency band lower than 2.1Ghz, is used as a frequency band of the IF signal to avoid interference with 2.1Ghz. If the base station transmits a signal using the 800Mhz band, a 500Mhz band, which is a frequency band lower than 800Mhz, may be used as a frequency band of the IF signal to avoid interference with the 800Mhz band.

The first and second couplers 260 and 270 connect at least one first wireless signal processing unit 120 and at least one first antenna unit 130 to share the feed line of the previously installed base station 100, respectively. It is a device installed on at least one feeder.

The first combiner 260 is installed on the feeder line for sharing and is connected to the first frequency converter 240 and at least one IF signal received from the first frequency converter 240 to the second combiner 270 Input or input at least one IF signal received from the second combiner 270 to the first frequency converter 240.

In addition, the second coupler 270 is installed on the feed line for sharing and is connected to the second frequency converter 250 and operates in the reverse process with the first coupler 260, that is, from the first coupler 260 The received at least one IF signal is input to the second frequency converter 250 or the at least one IF signal received from the second frequency converter 250 is input to the first combiner 260.

The apparatus for sharing a base station feeder according to an embodiment of the present invention has been described above.

Hereinafter, the configuration of the first and second frequency converters 240 and 250 according to the present invention will be described.

2 is a configuration diagram for explaining the configuration of the first and second frequency converters 240 and 250, and FIG. 3 is a plurality of frequency converters 241, which constitute the first and second frequency converters 240 and 250, 251) is a configuration diagram for explaining the configuration.

2, the first and second frequency converters 240 and 250 convert a received RF signal into IF signals having different bands, and convert a plurality of received IF signals of different bands into RF signals. The frequency converter (241, 251) and the first and second frequency converters (240, 250) includes a controller (249, 259) that configures the band and number of IF signals to be converted.

That is, if the first frequency converter 241a receives an RF signal and converts it into an IF signal in the 300Mhz band or receives an IF signal in the 300Mhz band and converts it into an RF signal, the second frequency converter 241b receives an IF signal in the 500Mhz band , Or may receive an IF signal in the 500Mhz band, and the second frequency converter 241c may convert to an IF signal in the 700Mhz band or receive a signal in the 700Mhz band.

This is the same for the plurality of frequency converters 251 included in the second frequency converter 250.

In addition, the first frequency converter 241a of the first frequency converter 240 and the first frequency converter 251a of the second frequency converter 250 may serve the same frequency band.

That is, the first frequency converters 241a and 251a of the first and second frequency converters 240 and 250 may be responsible for IF signals in the same 300Mhz band, which are the first and second frequency converters 240 and 250. Other frequency converters included in the pair can also be paired with each other to cover the same frequency band.

On the other hand, the second frequency converter 250 is a signal that exceeds a preset threshold among at least one signal detected from the second antenna unit 230 through the controller 259 included in the second frequency converter 250 The number of aerials to transmit the signal is calculated based on the number of signals having an intensity, and the IF signal to convert the signal based on the calculated number of aerials and the number of feeders shared by the plurality of combiners 260 and 270 Band and number can be configured.

Here, the signal strength of the signal exceeds a predetermined threshold is to determine whether the detected RF signal is actually the input signal, that is, to determine the presence or absence of the RF signal, the signal strength exceeds a preset threshold Then, it can be determined that the actual RF signal is input.

It is assumed that 32 frequency converters 241 are included in the second frequency converter 250, and the frequency converters 241 are respectively connected to 32 antennas included in the second antenna unit 230. do.

In addition, if the number of signals having a signal strength exceeding a predetermined threshold is 16, the RF signal received through the second antenna unit 230 is used from the first frequency converter 251a to the sixteenth frequency converter (not shown). The signal may be converted into an IF band allocated to each frequency converter 251.

In addition, if the first and second combiners 260 and 270 share a feeder line with two pre-installed base stations, and the number of signals having a signal strength exceeding a preset threshold is 16, the first frequency converter 251a to the eighth frequency The RF signal received through the second antenna unit 230 may be converted to an IF band allocated to each frequency converter 251 using a converter (not shown).

At this time, the controller 259 of the second frequency converter 250 uses the first frequency converter 240 for at least one of information on the number and number of IF signals used by the second frequency converter 250. To the controller 249, and based on the received information, the first frequency converter 240 may convert the converted IF signal into an RF signal.

That is, the first frequency converter 240 uses information from the controller 259 of the second frequency converter 250 to the first frequency converter 251a to the eighth frequency converter (not shown) using eight frequency converters. ) To the controller 249, the first frequency converter 240 received the information through the first combiner 260 is based on this, the first frequency converter 241a to the eighth frequency converter (not shown) ) To convert the IF signal to an RF signal.

Although the above-described process has been mainly described for the second frequency conversion unit 250, the same may be applied to the first frequency conversion unit 240 receiving at least one signal from the second wireless signal processing unit 220.

Now, referring to FIG. 3, the configuration of the frequency converters 241 and 251 will be described. 3(a) shows the configuration of the frequency converter 241 included in the first frequency converter 240, the first mixer 243 for converting the downlink RF signal into an IF signal and the IF in the uplink It may be composed of a second mixer 245 for converting a signal to an RF signal, and a local oscillator 247 for generating a local outgoing signal in a preset frequency band.

Here, the first mixer 243 is a mixer used to convert the downlink RF signal to be transmitted to the wireless terminal (not shown) from the base station 200 received from the second wireless signal processing unit 220 into an IF signal, The second mixer 245 receives the IF signal converted from the RF signal of the uplink received from the wireless terminal (not shown) by the second antenna unit 220 from the first combiner 260 and converts it into the original RF signal. It can be used to convert back.

)로 변환시키거나(Down Conversion,

), 입력된 IF 신호에 국부발신신호(fo)를 혼합하여 RF 신호로 변환시킨다(Up Conversion,

).At this time, the first and second mixers 243 and 245 each mix a preset local outgoing signal fo and an RF signal generated by the local oscillator 247, thereby generating an IF signal (

Down Conversion,

), the local IF signal (fo) is mixed with the input IF signal and converted into an RF signal (Up Conversion,

).

3(b) shows the configuration of the frequency converter 251 included in the second frequency converter 250, and the first mixer 253 is the uplink received by the second antenna unit 220 from the wireless terminal. For converting the RF signal to the IF signal, the second mixer 255 receives the IF signal converted from the RF signal of the downlink transmitted from the second wireless signal processing unit 220 from the second combiner 270 to receive RF It is converted back into a signal.

As described above, the first and second mixers 253 and 255 convert the local oscillation signal fo and the RF signal generated by the local oscillator 257 into an IF signal, or convert the IF signal into an RF signal.

The configuration of the first and second frequency converters 240 and 250 according to the present invention has been described above.

In the present invention, the feeder sharing device can support not only one feeder but also a plurality of feeders to be shared. At this time, the RF signal of the newly installed second base station 200 is distributed and transmitted to a plurality of feeders.

Hereinafter, an embodiment in which the feeder lines of a plurality of pre-installed base stations according to the present invention are shared will be described.

4 is an exemplary view for explaining an embodiment of sharing the feeder lines of a plurality of pre-installed base stations. In FIG. 4, it is assumed that four first base stations 100a to 100d are pre-installed, and four feed lines installed at each of the first base stations 100a to 100d are shared.

According to the present invention, four first and second couplers 260 and 270 are respectively installed to share the feed lines of four first base stations 100 installed, and each of the first and second couplers 260 and 270 is The first and second frequency converters 240 and 250 are respectively connected.

For example, a signal having a signal strength exceeding a preset threshold among a plurality of signals sensed by the second frequency converter 250 from the second antenna unit 230, that is, the number of antennas to which the signal is input is 32. Assuming, by sharing the feeder line with two pre-installed base stations 100a, 100b, 16 frequency converters 241, 251 can be used to convert the signal, and four pre-installed base stations 100a, 100b and feeder lines can be used. If shared, signals can be converted using four frequency converters 241 and 251.

The above-described example may be equally applied to the first frequency converter 240.

In addition, the IF frequency band used by the first and second frequency converters 240 and 250 to convert the RF signal is at least one base station that shares the feeder line in which the at least one first and second couplers 260 and 270 are installed. It may be a frequency of a band lower than the lowest frequency band of the transmitted frequency band.

That is, in FIG. 4, since the feeder lines are shared with the four pre-installed base stations 100a to 100d, the frequency of the lower band is lower than the base station using the lowest frequency band among the four pre-installed base stations 100a to 100d. The frequency bands of the plurality of frequency converters 241 and 251 included in the two frequency converters 240 and 250 may be used.

For example, it is assumed that the base stations of the first base stations 100a and 100c transmit signals in the frequency band of 2.1Ghz, 100b transmits signals in the frequency band of 1.8Ghz, and 100d transmits signals in the frequency band of 800Mhz. .

Then, the plurality of frequency converters 241 and 251 included in the first and second frequency converters 240 and 250 are 800Mhz bands of 100d base stations using the lowest frequency band among the four installed base stations 100a to 100d. An RF signal can be converted into an IF signal using a lower frequency band, or an IF signal can be converted into an RF signal.

In the above, an embodiment in which a plurality of combiners 260 and 270 according to the present invention share the feed lines of a plurality of pre-installed base stations has been described.

Hereinafter, a method of sharing a feeder according to an embodiment of the present invention will be described.

5 is a flowchart illustrating a method of sharing a feeder according to an embodiment of the present invention.

Referring to FIG. 5, if any one of the first and second frequency converters 240 and 250 receives an RF signal from the second antenna unit 230 or the second wireless signal processor 220, either One frequency converter (240, 250) measures the signal strength value of each RF signal (S101) to calculate the number of RF signals exceeding a preset threshold, and the second base station 200 based on the calculated value ) Can calculate the number of aerials required (S103).

In addition, a band and a number of intermediate frequency signals may be configured based on the calculated number of aerials and the number of feeders shared with the pre-installed base station 100 (S105).

One frequency conversion unit (240, 250) comprising a frequency band and a number converts an RF signal into an IF signal in accordance with each predetermined frequency band to share the converted IF signal to a feeder line of another installed base station. The feeder line of the base station may be transmitted to the other frequency converters 240 and 250 through the first and second couplers 260 and 270 connected to the one frequency converter (S107 to S109). At this time, at least one piece of information on the configured frequency band and number may be transmitted to the other frequency converters 240 and 250 together.

The other frequency converters 240 and 250 receiving the IF signal may convert the IF signal into an RF signal (S111). At this time, the IF signal may be converted into an RF signal based on at least one of the information on the received frequency band and number, and the converted RF signal may be transmitted or removed through the second antenna unit 230. 2 can be input to the wireless signal processing unit 220 to process the signal.

Here, when the first and second frequency converters 240 and 250 have a plurality of feeder lines in which the first and second couplers 260 and 270 are installed, the lowest frequency band among the frequency bands transmitted by at least one base station sharing the feeder line The lower frequency band can be used as the IF signal band.

In the above, the method of sharing a feeder according to an embodiment of the present invention has been described.

As described above, this specification includes details of a number of specific implementations, but these should not be understood as limiting with respect to any invention or claimable scope, but rather may be specific to a particular embodiment of a particular invention. It should be understood as a description of the features. Certain features that are described in this specification in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable subcombination. Further, although features may operate in a particular combination and may be initially depicted as so claimed, one or more features from the claimed combination may in some cases be excluded from the combination, and the claimed combination subcombined. Or sub-combinations.

The described description presents the best mode of the present invention, and provides examples for explaining the present invention and for allowing a person skilled in the art to make and use the present invention. This written specification is not intended to limit the invention to the specific terms presented. Accordingly, the present invention has been described in detail with reference to the above-described examples, but a person skilled in the art can make modifications, alterations, and modifications to these examples without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be determined by the described embodiments, but should be determined by the claims.

The present invention relates to an apparatus and method for sharing a feeder of a base station, and more specifically, to install a coupler for sharing a feeder line to a feeder line of an existing base station, and converting two frequencies respectively connected to the antenna unit and the radio signal processor to the combiner. The present invention relates to an apparatus and method for sharing a feeder line of a base station by connecting parts and sharing a feeder line of a pre-installed base station, thereby enabling construction of a new base station without additionally installing a feeder line to connect the antenna unit and the radio signal processor.

According to the present invention, a coupler for sharing a feeder line is installed on a feeder line of a pre-installed base station, and the combiner converts a signal converted into an IF signal from one frequency converter connected to an antenna unit or a radio signal processor of a new base station into another. By transmitting to the frequency converter, the signal is transmitted without interference with the frequency signal in the base station band, and the Massive MIMO RF signal is transmitted without complicated aerial configuration according to the construction of Massive MIMO, thereby reducing the cost of investment through stable service operation and additional installation of feeders. The development of the wireless mobile communication industry by solving the shortcomings that it was difficult to install due to the increase in the size and weight of the equipment that may occur when using a rectifier, RRU and antenna-integrated equipment You can contribute to

In addition, the present invention is not only sufficient for commercial or commercial possibilities, but also has a practical applicability, and thus has industrial applicability.

100: previously installed base station 110: first rectifier 120: first wireless signal processing unit
130: first antenna 200: newly installed base station 210: second rectifier
220: second wireless signal processor 230: second antenna 240: first frequency converter
250: first coupler 260: second coupler 270: second frequency converter

Claims (10)

At least one first coupler connecting at least one feeder line connecting the first radio signal processing unit and the at least one first antenna unit to the first frequency converter in the at least one pre-installed first base station;
At least one second combiner connecting the at least one feeder line with a second frequency converter;
At least one RF (Radio Frequency) signal received from the second radio signal processing unit is converted to at least one IF (Intermediate Frequency) signal having different bands, transmitted to the first combiner, and at least one received from the first combiner. A first frequency converter converting the IF signal into an RF signal and transmitting the RF signal to the second wireless signal processor; And
The RF (Radio Frequency) signal received from the second antenna unit is converted to at least one IF (Intermediate Frequency) signal having different bands, and then transmitted to the second coupler, and at least one received from the second coupler. A second frequency converter that converts an IF signal into an RF signal and delivers it to the second antenna unit
Base station feeder sharing device comprising a. ◈ Claim 2 was abandoned when payment of the registration fee was set.◈ The method of claim 1, wherein the first and second frequency conversion unit
It includes a plurality of frequency converter for converting the frequency band of the input signal,
The plurality of frequency converters receive the RF signal and convert the first signal to convert the IF signal having a frequency band corresponding to each frequency converter, and receive the IF signal having a frequency band corresponding to each frequency converter to receive the RF Base station feeder sharing device comprising a second mixer to convert to a signal. ◈ Claim 3 was abandoned when payment of the registration fee was set.◈ The method of claim 2, wherein the first or second frequency converter
To connect the second antenna unit and the second radio signal processor based on the number of signals having a signal strength exceeding a preset threshold among at least one signal input from the second antenna unit or the second radio signal processor The number and number of IF signals to be modulated based on the calculated number of aerials and the number of feeders connected to the first or second frequency converter by the calculated number of aerials and the first or second combiner. Base station feeder sharing device comprising a. ◈ Claim 4 was abandoned when payment of the set registration fee was made.◈ The method of claim 3, wherein the first or second frequency converter
At least one piece of information regarding the number and number of IF signals used when converting the signal from another frequency converter is received through the first combiner or the second combiner, and the converted IF is based on the received information Base station feeder sharing device, characterized in that for converting the signal into an RF signal. ◈ Claim 5 was abandoned when payment of the set registration fee was made.◈ The method of claim 1, wherein the IF signal band
Base station feeder sharing device, characterized in that the frequency of the lower band than the frequency band used by the at least one base station. A method of sharing a base station feeder line of a base station feeder sharing device that connects between the first base station and the second base station to share a feeder line of at least one first base station that is pre-installed, by a second base station,
Receiving, by the base station feeder sharing device, at least one RF signal from a second antenna unit or a second wireless signal processor of a second base station;
Converting the received RF signal into at least one IF signal having different bands by the base station feeder sharing device;
Transmitting, by the base station feeder sharing device, the at least one IF signal through the feeder of the at least one first base station;
Converting at least one IF signal transmitted through the feeder by the base station feeder sharing device into the at least one RF signal; And
Transmitting, by the base station feeder sharing device, the converted at least one RF signal to the second radio signal processing unit or the second antenna unit
Method of sharing a base station feeder line comprising a. ◈ Claim 7 was abandoned when payment of the set registration fee was made.◈ The method of claim 6,
Calculating, by the base station feeder sharing device, the number of RF signals having a signal strength exceeding a preset threshold among RF signals input from the second antenna unit or the second radio signal processor;
Calculating, by the base station feeder sharing device, the number of aerials required to transmit the RF signal from the second base station based on the calculated number of signals; And
Configuring, by the base station feeder sharing device, a frequency band and a number of the at least one IF signal to modulate the RF signal based on the calculated number of aerials and the number of shared feeders;
Base station feeder sharing method further comprising a. ◈ Claim 8 was abandoned when payment of the set registration fee was made.◈ The method of claim 6, wherein the IF signal band
A base station feeder sharing method, characterized in that it is a frequency of a band lower than the frequency band used by the at least one base station. A second antenna unit for transmitting and receiving one or more RF signals;
A second radio signal processor processing the one or more RF signals;
At least one first coupler connecting at least one feeder line connecting the first radio signal processing unit and the at least one first antenna unit to the first frequency converter in the at least one pre-installed first base station;
At least one second combiner connecting the at least one feeder line with a second frequency converter;
At least one RF (Radio Frequency) signal received from the second radio signal processing unit is converted to at least one IF (Intermediate Frequency) signal having different bands, transmitted to the first combiner, and at least one received from the first combiner. A first frequency converter converting the IF signal into an RF signal and transmitting the RF signal to the second wireless signal processor; And
The RF (Radio Frequency) signal received from the second antenna unit is converted to at least one IF (Intermediate Frequency) signal having different bands, and then transmitted to the second coupler, and at least one received from the second coupler. A second frequency converter that converts an IF signal into an RF signal and delivers it to the second antenna unit
Base station apparatus comprising a. ◈ Claim 10 was abandoned when payment of the set registration fee was made.◈ The method of claim 9, wherein the second antenna unit
A base station apparatus comprising a Multiple Input Multiple Output (MIMO) antenna.

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