KR20100076440A - Mobile telecommunication service system and method using by microwave channel - Google Patents

Abstract

PURPOSE: A mobile telecommunication service system using a microwave channel and a method thereof are provided to supply a mobile telecommunication service to various places using a single source signal. CONSTITUTION: A donor device(120) changes a mobile communications service signal of a base station(110) into a microwave signal. After dividing a microwave signal into several signals, the donor device transmits separated signals to remote control devices(130-138). The remote control device receives a single microwave signal among the several signals. The remote control device transmits a response microwave signal to the donor device.

Description

Mobile telecommunication service system and method using microwave channel {Mobile telecommunication service system and method using by microwave channel}

The present invention relates to a mobile communication service for transmitting a service signal through a microwave channel when using a repeater for a shadow area of the mobile communication service, and more particularly, converting a mobile communication service signal into a microwave band through a separator. It divides into N signals and transmits them to multi-points, and then synthesizes and processes N signals received from multi-points through a synthesizer, and the gain of each path loss between each multipoint remote device in the donor device. The present invention relates to a mobile communication service system and method using a microwave channel that can be serviced to several places in a nearby area by adjusting a 1: N.

In general, a base station and a relay transmission apparatus are used according to communication traffic density to secure a service area in a mobile communication network. The base station is installed in an optimal location according to the number of subscribers distributed in the service area and the number of subscribers that the base station can accommodate while satisfying the quality of service required by the wireless communication network in a high traffic density area.

On the other hand, the relay transmission device is installed to cover the shielded area or the RF Null Area of the basement floor, tunnel, subway, rural area of rural area, etc., where the density of the subscriber is relatively low or the signal from the ground base station is hard to reach. do.

Among these relay transmission devices, relay transmission devices using microwaves are largely divided into donor devices and remote devices.

The donor device receives, for example, a signal of a frequency band of, for example, 1.8 GHz transmitted from a base station through a method of directly connecting a coupler terminal of the base station or through a directional antenna. The received signal is filtered through a duplexer, low noise amplified by an amplifier, frequency-converted from the microwave module to 17.18 GHz microwave, and transmitted via the final parabolic antenna to the remote device in the remote shadow area.

A signal that is frequency converted from a donor device to a 17.18 GHz microwave and transmitted is received by a parabolic antenna of the remote device. The received signal is converted back to the 1.8 GHz frequency in the microwave module and then filtered through the duplexer. Depending on the magnitude of the received signal, the magnitude is controlled in the attenuator and amplified low noise in the drive amplifier. The amplified signal is amplified with high power in a power amplifier (HPA) and transmitted to the shadow area through an antenna for a frequency band.

The radio link section consisting of the donor device of the microwave relay transmission device and the microwave device of the remote device installed in the shadow area is basically separated by 5 km.

Therefore, the microwave link method was used as the link technology of the point-to-point 1: 1 communication method for the area where wired cable is difficult to install due to the distance problem. .

This technology is also used to provide mobile communication service. When the relay transmission device is installed to provide mobile communication service in the place where it is impossible or difficult to install optical core and cable, 1: 1 of existing point-to-point is used. It is using the microwave link technology of the communication method.

In this case, the microwave link technology requires a separate device and a microwave channel in a manner that a signal source source must be separately provided for each point to provide a service, and there is another microwave communication device using the same channel in a nearby area. There was a problem that could not be installed additionally due to interference.

In order to solve the above-mentioned problems, an object of the present invention is to convert a mobile communication service signal into a microwave band, divide the signal into N signals through a separator, transmit the signals to multipoints, and then synthesize the N signals received from the multipoints. It can be synthesized and processed through a donor device, and the gain of each path loss between each multipoint remote device is adjusted to 1: N so that a single source can be used to serve multiple locations. The present invention provides a mobile communication service system using the microwave channel, a method thereof, a donor device and the method thereof.

A mobile communication service system using a microwave channel according to the present invention for achieving the above object, the base station for transmitting a mobile communication service signal; A donor device that receives the mobile communication service signal transmitted from the base station, converts the microwave signal into a microwave signal, splits the microwave signal into N signals, and sends the microwave signal to a multipoint remote device; And a remote device that receives the microwave signal of one of the N signals transmitted from the donor device and transmits a response microwave signal to the donor device.

Here, the donor device compensates the loss of gain for each path according to the distance difference from each remote device by 1: N gain adjustment.

On the other hand, the donor device according to the present invention for achieving the above object, the communication unit for receiving a service signal related to mobile communication directly from the coupler terminal of the base station or through the directional antenna; A microwave conversion unit converting the service signal into a microwave signal; A signal separator for separating the microwave signal into N signals; A microwave transmission / reception unit configured to transmit the N microwave signals to a multipoint remote device or to receive N microwave signals from the multipoint remote device; A signal synthesizing unit for synthesizing the N microwave signals respectively received from the multi-point remote device; And a signal compensator for adjusting and compensating a 1: N gain for loss along each path with the multi-point remote device.

The microwave transceiver may transmit the N microwave signals to the multi-point remote device using a microwave antenna or a wide microwave antenna.

The microwave converter converts the microwave signal synthesized through the signal synthesizer into the service signal and transmits the microwave signal to the communication unit.

In addition, a first duplexer for first filtering the service signal received from the base station through the communication unit; A first amplifier for low noise amplifying the first filtered service signal; A second duplexer for second filtering the service signal converted from the microwave signal; And a second amplifier configured to amplify the second filtered service signal.

The signal compensator checks service signals in a polling manner for each of the N remote apparatuses by a predetermined time period, or checks a service signal in a polling manner for each ID of the N remote apparatuses and adjusts a gain of a lost service signal. .

On the other hand, the mobile communication service method of the donor device according to the present invention for achieving the above object, a mobile communication service method of the donor device for transmitting the service signals received from the base station to the N remote devices, (a) the base station Converting the service signal received from the microwave signal; (b) separating the microwave signal into N signals; And (c) transmitting the N microwave signals to the N remote devices.

Also, (d) confirming the loss for each path with the N remote devices; And (e) adjusting the gain for the service signal to the lost remote device as a result of the checking to compensate for the loss.

The step (d) confirms the loss of the microwave signal in a polling manner for each of the N remote devices by a polling method for a predetermined time, or confirms the loss of the microwave signal in a polling manner for each ID of the N remote devices. .

On the other hand, the mobile communication service method of the donor device according to the present invention for achieving the above object is a mobile communication service method of the donor device for relaying a signal between the base station and the remote device, (a) microwaves from N remote devices Receiving a signal; (b) synthesizing the received N microwave signals; (c) converting the synthesized microwave signal into a service signal; And (d) transmitting the service signal to the base station.

Here, the step (a) may include: (a-1) checking the loss for each path with the N remote devices; And (a-2) compensating for the loss by adjusting the gain of the microwave signal between the lost remote devices as a result of the checking.

In addition, in step (a-1), the loss of the microwave signal is checked for each of the N remote devices by a polling method for a predetermined time, or the loss of the microwave signal is polled for each ID of the N remote devices. Check it.

According to the present invention, it is possible to provide a mobile communication service to several places in the vicinity using one source signal.

In addition, the mobile communication service can be provided at the same time even in a distributed small shadow area or where there are few subscribers due to a small capacity problem.

In addition, since the point-to-multipoint transmission is implemented using the same microwave channel, interference does not occur and the microwave channel resource can be saved by using the same signal source.

In addition, it is unnecessary to install equipment for a separate signal source source, thereby saving frequency resources and unnecessary additional signal source sources.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram schematically showing the configuration of a mobile communication service system using a microwave channel according to an embodiment of the present invention.

Referring to FIG. 1, the mobile communication service system 100 according to the present invention includes a base station 110, a donor device 120, and N remote devices 130 to 138.

The base station 110 transmits a service signal related to mobile communication to the donor device 120 to provide a mobile communication service to a wireless terminal such as a cellular phone.

The donor device 120 receives a signal to the base station 110 by wire through an optical cable or wirelessly using a yagi antenna, and transmits the service signals received from the base station 110 to the N remote devices 130 to 138. To pass.

That is, the donor device 120 receives the service signal related to the mobile communication transmitted from the base station 110, converts it into a microwave signal, and separates the microwave signal into N signals to multi-point remote devices 130 to 138. To be sent.

Here, the donor device 120 compensates for the loss of gain for each path according to the distance difference from each remote device 130 to 138 by 1: N gain adjustment.

The N remote devices 130 to 138 receive a microwave signal of one of the N signals transmitted from the donor device 120, and transmit a response microwave signal to the donor device 120.

2 is a configuration diagram schematically showing an internal configuration of a donor device according to an embodiment of the present invention.

2, the donor device 120 according to the present invention includes a communication unit 202, a first duplexer 204, a first amplifier 206, a second duplexer 208, and a microwave converter 210. ), A signal separator 212, a microwave transceiver 214, a signal synthesizer 216, and a second amplifier 218.

The communication unit 202 receives a service signal related to mobile communication directly from the coupler terminal of the base station 110 or through a directional antenna.

The first duplexer 204 first filters the service signal received from the base station 110 through the communication unit 202.

The first amplifier 206 low noise amplifies the first filtered service signal.

The second duplexer 208 secondly filters the service signal converted from the microwave signal through the microwave converter 210.

The second amplifier 218 amplifies the second filtered service signal by the second duplexer 208.

The microwave converter 210 converts a service signal into a microwave signal, or converts a microwave signal synthesized through the signal synthesizer 216 into a service signal and transmits the service signal to the communication unit 202.

The signal separator 212 separates the microwave signal into N signals.

The microwave transceiver 214 transmits N microwave signals to the remote devices 130 to 138 of the multi-point, or receives N microwave signals from the remote devices 130 to 138 of the multi-point.

In addition, the microwave transceiver 214 transmits the N microwave signals to the multi-point remote devices 130 to 138 using a microwave antenna or a wide microwave antenna.

The signal synthesizing unit 216 multiplexes the N microwave signals respectively received from the multi-point remote devices 130 to 138.

The signal compensator 220 adjusts and compensates 1: N gain for loss along each path with the multi-point remote devices 130 to 138.

In addition, the signal compensator 220 checks the service signal by polling method for each of the N remote devices by a predetermined time, or checks the service signal by polling method by ID of the N remote devices and gains a loss of the service signal. Adjust it.

3 is a flowchart illustrating a mobile communication service method according to an embodiment of the present invention.

Referring to FIG. 3, the present invention transmits a service signal from the base station 110 to the donor device 120 (S302).

On the other hand, the donor device 120 converts the received service signal into a microwave signal (S304).

Subsequently, the donor device 120 separates the microwave signals into N microwave signals in order to transmit the microwave signals to the N remote devices 130 to 138 (S306).

Subsequently, the donor device 120 transmits N microwave signals to the N remote devices 130 to 138 (S308).

The donor device 120 compensates for the loss of each path by adjusting the 1: N gain of the N microwave signals between the N remote devices 130 to 138 (S310).

Meanwhile, the donor device 120 receives the N microwave response signals from the N remote devices 130 to 138 after transmitting the N microwave signals to the N remote devices 130 to 138 (S312). .

Subsequently, the donor device 120 synthesizes the N microwave response signals into one microwave response signal (S314), and converts the synthesized microwave response signal into a service signal (S316).

The donor device 120 transmits the service signal to the base station 110 (S318).

4 is a flowchart illustrating a mobile communication service method of a donor device according to an embodiment of the present invention.

Referring to FIG. 4, the donor device 120 according to the present invention receives a service signal from the base station 110 through the communication unit 202 (S402).

The donor device 120 filters the service signal received from the base station 110 by the first duplexer 204 and performs low noise amplification through the first amplifier 206.

Subsequently, the donor device 120 converts the service signal into the microwave signal by the microwave converter 210 (S404).

Subsequently, the donor device 120 separates the microwave signal into N microwave signals by the signal separator 212 (S406).

Subsequently, the donor device 120 transmits N microwave signals to the N remote devices 130 to 138 by the microwave transceiver 214 (S408).

Subsequently, the donor device 120 checks the loss for each path with the N remote devices 130 to 138 (S410).

The donor device 120 compensates for the loss by adjusting the gain by the signal compensator 220 with respect to the service signal to the lost remote device as a result of the check (S412).

At this time, the donor device 120 confirms the loss of the microwave signal by polling method for the N remote devices 130 to 138 by a predetermined time, or by polling by ID of the N remote devices 130 to 138 by micro. Check for loss of wave signal.

5 is a flowchart illustrating a mobile communication service method of a donor device according to another embodiment of the present invention.

Referring to FIG. 5, the donor device 120 according to the present invention transmits N microwave signals to the N remote devices 130 to 138, and then responds to the response signals from the N remote devices 130 to 138. The N microwave signals are received by the microwave transceiver 214 (S502).

Here, the donor device 120 confirms the loss for each path with the N remote devices 130 to 138, and adjusts the gain by the signal compensator 220 for the microwave signal between the lost remote devices. To compensate.

At this time, the donor device 120 confirms the loss of the microwave signal by polling method for the N remote devices 130 to 138 by a predetermined time, or by polling by ID of the N remote devices 130 to 138 by micro. Check for loss of wave signal.

The donor device 120 synthesizes the N microwave signals received by the microwave transceiver 214 by the signal synthesizer 216 (S504).

Subsequently, the donor device 120 converts the microwave signal synthesized by the signal synthesizing unit 216 into a service signal by the microwave converting unit 210 (S506).

The service signal converted by the microwave converter 210 from the microwave signal is filtered by the second duplexer 208, amplified by the second amplifier 218, and then passed through the first duplexer 204. It is delivered to the communication unit 202.

Therefore, the donor device 120 transmits the service signal to the base station 110 by the communication unit 202 (S508).

As described above, according to the present invention, a mobile communication service signal is converted into a microwave band, separated into N signals through a separator, transmitted to multipoint, and then synthesized N signals received from the multipoint through a synthesizer. Microcontroller to service multiple locations in the vicinity using a single source by adjusting the gain of each path loss between each multipoint remote device in the donor device to 1: N. A mobile communication service system using a wave channel, a method thereof, a donor device, and the method can be realized.

As those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features, the embodiments described above are exemplary in all respects and are not intended to be limiting. You must understand. The scope of the present invention is shown by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention. Should be interpreted.

The present invention can be applied to a mobile communication system in which a relay transmission device is installed to solve a shadow area.

In addition, the present invention can be applied to a relay transmission device for relaying a service signal transmitted from a base station to a wireless terminal.

The present invention can also be applied to donor devices and remote devices that deliver service signals received from the base station to the relay transmission device.

1 is a configuration diagram schematically showing the configuration of a mobile communication service system using a microwave channel according to an embodiment of the present invention.

2 is a configuration diagram schematically showing an internal configuration of a donor device according to an embodiment of the present invention.

3 is a flowchart illustrating a mobile communication service method according to an embodiment of the present invention.

4 is a flowchart illustrating a mobile communication service method of a donor device according to an embodiment of the present invention.

5 is a flowchart illustrating a mobile communication service method of a donor device according to another embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: mobile communication service system 110: base station

120: donor device 130 to 138: remote device

202: communication unit 204: first duplexer

206: first amplifier 208: second duplexer

210: microwave conversion unit 212: signal separation unit

214: microwave transceiver 216: signal synthesizing unit

218: second amplifier

Claims (13)

A base station transmitting a mobile communication service signal; A donor device that receives the mobile communication service signal transmitted from the base station, converts the microwave signal into a microwave signal, splits the microwave signal into N signals, and sends the microwave signal to a multipoint remote device; And A remote device for receiving a microwave signal of one of the N signals transmitted from the donor device and transmitting a response microwave signal to the donor device; Mobile communication service system using a microwave channel comprising a. The method of claim 1, The donor device is a mobile communication service system using a microwave channel, characterized in that to compensate for the loss of gain for each path according to the distance difference with each remote device by 1: N gain adjustment. A communication unit which directly receives a service signal related to mobile communication from a coupler terminal of a base station or through a directional antenna; A microwave conversion unit converting the service signal into a microwave signal; A signal separator for separating the microwave signal into N signals; A microwave transmission / reception unit configured to transmit the N microwave signals to a multi-point remote device or to receive N microwave signals from the multi-point remote device; A signal synthesizing unit for synthesizing the N microwave signals respectively received from the multi-point remote device; And A signal compensator for compensating by adjusting a 1: N gain for loss along each path with the multi-point remote device; Donor device comprising a. The method of claim 3, wherein The microwave transceiver, the donor device, characterized in that for transmitting the N microwave signals to the multi-point remote device using a microwave antenna or a wide microwave antenna. The method of claim 3, wherein And the microwave converter converts the microwave signal synthesized through the signal synthesizer into the service signal and transmits the microwave signal to the communication unit. The method of claim 3, wherein A first duplexer for first filtering a service signal received from the base station through the communication unit; A first amplifier for low noise amplifying the first filtered service signal; A second duplexer for second filtering the service signal converted from the microwave signal; And A second amplifier amplifying the second filtered service signal Donor device further comprising. The method of claim 3, wherein The signal compensator checks a service signal in a polling manner for a predetermined time with respect to the N remote devices, or checks a service signal in a polling manner for each ID of the N remote devices to adjust a gain of a lost service signal. Donor device. A mobile communication service method of a donor device for transmitting a service signal received from a base station to N remote devices, (a) converting a service signal received from the base station into a microwave signal; (b) separating the microwave signal into N signals; And (c) transmitting the N microwave signals to the N remote devices; Mobile communication service method of the donor device comprising a. The method of claim 8, (d) confirming each path loss with the N remote devices; And (e) compensating for the loss by adjusting the gain for the service signal to the lost remote device as a result of the checking; Mobile communication service method of the donor device further comprising. The method of claim 9, In step (d), the loss of the microwave signal may be checked for each of the N remote devices by polling method for a predetermined time, or the loss of the microwave signal by polling method for each ID of the N remote devices. A mobile communication service method of a donor device. A mobile communication service method of a donor device for relaying a signal between a base station and a remote device, (a) receiving microwave signals from the N remote devices; (b) synthesizing the received N microwave signals; (c) converting the synthesized microwave signal into a service signal; And (d) transmitting the service signal to the base station; Mobile communication service method of the donor device comprising a. The method of claim 11, In step (a), (a-1) checking the loss for each path with the N remote devices; And (a-2) compensating for the loss by adjusting the gain of the microwave signal between the lost remote devices as a result of the checking; Mobile communication service method of the donor device comprising a. 13. The method of claim 12, In step (a-1), the loss of the microwave signal is checked for each of the N remote devices by a polling method for a predetermined time period, or the loss of the microwave signal is confirmed by a polling method for each ID of the N remote devices. Mobile communication service method of the donor device, characterized in that.

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