KR20030090450A - Unified repeater system for mobile communication service - Google Patents

Abstract

PURPOSE: An integrated mobile communication relay system is provided to realize broadband relay by integrating signals of several frequency bands served by a plurality of mobile communication service companies by relay sectors. CONSTITUTION: A link relay includes a forward link relay(112) integrating forward signals received from a base station for converting frequencies different from each other every relay sector, and the first inverse link relay reproducing signals received from the second converter by relay sectors for transmitting the reproduced signals to the base station. First synthesizers(112-1) synthesize the forward signals received from the base station. First frequency converters(112-2) convert the synthesized signals into a preliminarily designated frequency. First filters(112-3) filter the frequency-converted signal. First amplifiers(112-4) amplify the filtered signal.

Description

Unified mobile repeater system {UNIFIED REPEATER SYSTEM FOR MOBILE COMMUNICATION SERVICE}

The present invention relates to an integrated mobile communication repeater system capable of wideband relay by integrating signals serviced by mobile telecommunication companies for each relay sector.

The mobile service provider operates a large number of base stations to provide mobile communication services within the allocated frequency range, and installs and operates a separate repeater to provide mobile communication service in an area outside the service range of the base station. .

The present applicant is an integrated mobile communication repeater system that enables the integrated service through a single antenna using a common repeater subscriber signal of several frequency bands each serviced by a plurality of mobile communication service providers (Utility Model Application No. 20 -2002-0001871).

The integrated mobile repeater system greatly reduces facility costs, rents, etc., which are duplicated in the same service area by sharing subscriber signals of various frequency bands serviced by mobile communication service providers and sharing antennas. There was an effect to prevent communication interruption by mutual interference.

The present applicant intends to propose an integrated mobile communication repeater system which is improved to enable a wideband frequency relay while reducing the manufacturing cost while performing the same relay function as the previous integrated mobile communication repeater system.

SUMMARY OF THE INVENTION An object of the present invention is to provide an integrated mobile communication repeater system capable of broadband relaying by integrating signals serviced by mobile communication operators for each relay sector.

Another object of the present invention is to provide an integrated mobile communication repeater system having improved communication reliability by using spatial diversity.

It is still another object of the present invention to provide an integrated mobile communication repeater system capable of wirelessly relaying an integrated broadband signal to an area where an optical cable is not installed in order to relay for each relay sector.

Another object of the present invention is to provide an integrated mobile communication repeater system for extending a mobile communication network in series as well as in parallel as well as in parallel.

1 is a block diagram showing an embodiment of an integrated mobile communication repeater system according to the present invention;

FIG. 2 is a block diagram showing an embodiment of the link home relay shown in FIG. 1;

3 is a block diagram showing an embodiment of a service local station repeater shown in FIG.

Figure 4 is a block diagram showing another embodiment of an integrated mobile communication repeater system according to the present invention.

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

100: link relay station 110: link relay unit

112: forward link relay unit 114: first reverse link relay unit

116: second reverse link relay 120: first converter

130: first optical diplexer 140: second conversion unit

200-1, 200-2, ..., 200-n: Local relay for service

210: second optical diplexer 220: third conversion unit

230: service relay unit 232: forward service relay unit

234: first reverse service relay unit 236: second reverse service relay unit

240: diplexer 250: fourth conversion unit

300: sector antenna 310: diversity sector antenna

In order to achieve the above object, an embodiment of the present invention integrates forward signals of different mobile carriers received from a base station, converts frequency by relay sector, converts the signals into optical signals, and transmits the optical signals received from the outside. A link station repeater for converting the signal into a relay sector and transmitting the signal to the base station; And converting the optical signal received from the link base station repeater into an electrical signal, and reproducing it for each relay sector to serve the subscriber station, and frequency converting and synthesizing the reverse signal received from subscriber stations of different mobile carriers for each relay sector. The present invention provides an integrated mobile communication repeater system including one or more service local relays which are converted into optical signals and transmitted to the link mother station repeater.

The link relay station repeats the forward signal received from the base station and converts it to different frequencies for each relay sector, and reproduces the reverse signal converted into an electrical signal for each relay sector and transmits it to the base station. Link relay; A first converter for synthesizing the forward signal output from the link relay unit into an optical signal; A first optical diplexer for transmitting a forward signal converted from the first converter into an optical signal to the service local station repeater and receiving an optical signal from the service local station repeater; And a second converter which receives an optical signal from the first optical diplexer, converts the optical signal into an electrical signal, and outputs the converted optical signal to the link relay unit. .

The link relay unit may further include: a forward link relay unit integrating a forward signal received from the base station and converting the signal into different frequencies for each relay sector; And a first reverse link repeater for reproducing the signal received from the second converter for each relay sector and transmitting the signal to the base station.

In addition, the present invention, the forward link relay unit comprises first synthesis means for synthesizing the forward signal received from the base station; First frequency converting means for converting the signal synthesized by the first synthesizing means into a predetermined frequency for each relay sector; First filter means for filtering the signal frequency-converted by the first frequency converting means; The above-mentioned problem is solved by an integrated mobile communication repeater system, characterized in that each relay sector includes first amplifying means for amplifying the signal filtered by the first filter means.

The first reverse link relay unit may further include: first reproducing means for reproducing a signal received from the second converting unit as an original signal; Second filter means for filtering the reverse signal reproduced by said first reproducing means; And second amplification means for amplifying the signal filtered by the second filter means for each relay sector, thereby solving the above-described problems.

In addition, the first conversion unit comprises: a filter synthesis unit for synthesizing a signal of a predetermined frequency band among the forward signals received from the forward link relay unit; Second synthesizing means for synthesizing a modem monitoring control signal and a reference signal with the signal synthesized by the filter synthesizing unit; And first optical conversion means for converting the signal synthesized by the second synthesizing means into an optical signal.

In another aspect, the second conversion unit comprises: first photoelectric conversion means for converting an optical signal received from the first optical diplexer into an electrical signal; First distribution means for separating a modem monitoring control signal and a diversity reception signal included in the electrical signal converted by the first photoelectric conversion means and distributing the electrical signal; First low noise amplifying means for low noise amplifying the electrical signal distributed by the first distributing means; And second distributing means for distributing a low noise amplified signal from the first low noise amplifying means to the first reverse link relay to solve the above-mentioned problems as an integrated mobile communication repeater system.

In addition, the link station repeater includes: second low noise amplifying means for low noise amplifying the reverse signal distributed by the first distribution means; Third distribution means for distributing a low noise amplified signal in the second low noise amplifying means; And a second reverse link repeater for reproducing the signal received from the third distribution means for each of the relay sectors and transmitting the signal to the base station.

Further, the present invention, the second reverse link relay unit second playback means for reproducing the signal received from the third distribution means; Third filter means for filtering the reverse signal reproduced by said second reproducing means; And third amplifying means for amplifying the signal filtered by the third filter means for each relay sector, thereby solving the above-described problems.

The present invention further provides a linking mother station repeater comprising: fourth distribution means for distributing a signal synthesized by the second combining means; And first microwave means for transmitting the signal distributed by the fourth distribution means to the service local station repeater.

In addition, the present invention, the service local station repeater receives an optical signal from the link home station repeater and distributes some signals to other service local station repeaters, and transmits the reverse signal converted into an optical signal to the link home station repeater. A second optical diplexer; A third converter which receives an optical signal from the second optical diplexer and converts the optical signal into an electrical signal; A service relay unit for reproducing the electric signal distributed from the third converter for each relay sector, and converting the reverse signal received from the subscriber station into different frequencies for each relay sector; A diplexer for transmitting a forward signal reproduced by the service relay unit to the subscriber station through a corresponding sector antenna and outputting a reverse signal received from the subscriber station through the sector antenna to the service relay unit; And a fourth converter for synthesizing the reverse signals converted to different frequencies by the service relay unit, converting the reverse signals into optical signals, and outputting the optical signals to the second optical diplexer. Solve the problem.

The service relay unit may further include: a forward service relay unit for reproducing an electric signal distributed from the third converter unit for each relay sector and outputting the electric signal to the diplexer; And a first reverse service repeater for converting a reverse signal received from the diplexer into different frequencies for each relay sector and outputting the reverse frequency signal to the fourth conversion unit. Solve.

The present invention may further include a second photoelectric conversion means for converting an optical signal received from the second optical diplexer into an electrical signal; And fifth distribution means for distributing the signal converted into the electrical signal by the second photoelectric conversion means to the forward service repeater.

In addition, the present invention, the forward service relay unit may include a fourth filter means for extracting a signal of each mobile communication company from the electrical signal distributed from the third conversion unit; Third reproducing means for reproducing the signal extracted by the fourth filter means, respectively; High output amplifying means for high output amplifying each forward signal reproduced by said third reproducing means; And third synthesizing means for synthesizing the high power amplified signal by the high power amplifying means for each of the relay sectors.

The first reverse service relay may further include: third low noise amplifying means for low noise amplifying a reverse signal received from the diplexer; Second frequency converting means for converting a low noise amplified reverse signal by the third low noise amplifying means into a predetermined frequency for each relay sector; The above-mentioned problem is solved by an integrated mobile communication repeater system, which includes fifth filter means for filtering a frequency-converted signal by the second frequency converting means for each relay sector.

The present invention also solves the above-mentioned problems as an integrated mobile communication repeater system, wherein the diplexer is configured to transmit a forward signal and a reverse signal for each relay sector.

The fourth conversion unit may further include: fourth synthesizing means for synthesizing a signal having a predetermined frequency band among the signals received from the first reverse service relay unit; Fifth synthesizing means for synthesizing a modem monitoring control signal and a diversity reception signal with the synthesized signal received from the fourth combining means; And second optical conversion means for converting the signal synthesized by the fifth synthesizing means into an optical signal and outputting the optical signal to the second optical diplexer. .

The present invention also provides a service relay station comprising: a second reverse service relay unit for converting a reverse signal received through a diversity sector antenna into different frequencies for each relay sector; And a sixth synthesizing means for synthesizing a signal of a predetermined frequency band among the signals converted in frequency by the second reverse service relay unit and outputting the synthesized signal to the fifth synthesizing means. Solve one task.

The second reverse service relay may further include: fourth low noise amplifying means for low noise amplifying a reverse signal received through the diversity sector antenna; Third frequency converting means for converting a low noise amplified reverse signal by the fourth low noise amplifying means into a predetermined frequency for each relay sector; The above-mentioned problem is solved by an integrated mobile communication repeater system comprising sixth filter means for filtering a frequency-converted signal in the third frequency converting means for each relay sector.

The present invention also provides the service local station repeater comprising: second microwave means for receiving a signal transmitted by the link home station repeater; And a sixth synthesizing means for synthesizing the signal received by the second microwave means and the signal converted by the second photoelectric conversion means and outputting the synthesized signal to the fifth distribution means. The problem mentioned above is solved.

In addition, the present invention solves the above-described problems as an integrated mobile communication repeater system, characterized in that the service local station repeater can be extended in a series coupling method.

The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description.

The present invention proposes as a preferred embodiment a system implemented to allow broadband communication by integrating signals serviced by mobile communication providers for each relay sector.

1 is a block diagram showing an embodiment of an integrated mobile communication repeater system according to the present invention. Referring to FIG. 1, the present invention includes a link home station repeater 100 and one or more service home repeaters 200-1, 200-2,..., 200-n.

In the present embodiment, the service local station 200-1, 200-2,..., 200-n for the service can be extended by a series coupling method.

The link mother station repeater 100 integrates forward signals of different mobile communication companies received from a base station (not shown), converts the frequency by relay sector, and converts the signal into an optical signal for service local repeater 200-1, 200-2. .., 200-n) and converts the optical signal received from the service local repeater (200-1,200-2, ..., 200-n) into an electrical signal, and then reproduces it for each relay sector and transmits it to the base station. do.

Service local repeater (200-1,200-2, ..., 200-n) converts the optical signal received from the link home station repeater 100 into an electrical signal, and reproduces for each relay sector to serve the subscriber terminal, The reverse signal received from subscriber stations of different mobile communication companies is frequency-converted for each of the relay sectors, synthesized, and then converted into optical signals and transmitted to the link station repeater 100.

FIG. 2A is an embodiment of the link station repeater shown in FIG.

Referring to FIG. 2A, the link relay station 100 integrates forward signals received from the base station and converts them to different frequencies for each relay sector, and reproduces the reverse signals converted into electrical signals for each relay sector and transmits them to the base station. The link relay unit 110, a first converter 120 for synthesizing the forward signal output from the link relay unit 110 to an optical signal, and a forward direction converted to an optical signal by the first converter 120 A first optical diplexer 130 and a first optical diplexer which transmit a signal to the first service local relay 200-1 and receive an optical signal from the first service local relay 200-1; And a second converting unit 140 for converting and distributing the optical signal received from the 130 into an electrical signal and outputting the converted optical signal to the link relay unit 110.

The link relay unit 110 combines the forward signals input from the base station and converts the forward link relay 112 to different frequencies for each relay sector, and reproduces the signals received from the second converter 140 for each relay sector. And a first reverse link relay 114 to transmit to the base station.

The first converter 120 includes a filter synthesizer 122 for synthesizing a signal of a predetermined frequency band among the forward signals received from the forward link relay 112, and a modem to the signal synthesized by the filter synthesizer 122. Second synthesizing means 124 for synthesizing the monitoring control signal and the reference signal, and first optical converting means 126 for converting the signal synthesized in the second synthesizing means 124 into an optical signal.

The second conversion unit 140 receives a first photoelectric conversion means 142 for receiving an optical signal received from the first optical diplexer 130 and converting it into an electrical signal, and the first photoelectric conversion means 142 for conversion. A first distribution means 144 for separating the modem monitoring control signal and the diversity reception signal included in the electrical signal and distributing the electrical signal, and a low noise amplification of the electrical signal distributed at the first distribution means 144. A first low noise amplifying means 146 and second distributing means 148 for distributing the signal amplified by the first low noise amplifying means 146 to the first reverse link relay 114.

FIG. 2B is an embodiment of the forward link relay shown in FIG. 2A.

Referring to FIG. 2B, the forward link relay 112 may include a first synthesis unit 112-1 for synthesizing a forward signal received from a base station, and a relay sector for synthesizing the signal synthesized by the first synthesis unit 112-1. First frequency converting means 112-2 for converting to a predetermined frequency every time; first filter means 112-3 for filtering the signal frequency-converted by first frequency converting means 112-2; The first amplifying means 112-4 for amplifying the signal filtered by the filter means 112-3 is included for each relay sector α , β , r ,..., N.

FIG. 2C is an embodiment of the first reverse link relay shown in FIG. 2A.

Referring to FIG. 2C, the first reverse link relay 114 may include first reproducing means 114-1 for reproducing a signal received from the second distributing means 148 into an original signal, and a first reproducing means 114. A relay sector between the second filter means 114-2 for filtering the reverse signal reproduced in -1) and the second amplifying means 114-3 for amplifying the signal filtered by the second filter means 114-2. Each of ( α , β , r , ..., n) is included.

On the other hand, since each of the service local relays 200-1, 200-2,..., 200-n shown in FIG. 1 are configured in the same manner, the first service local relay 200-1 is described in the following description. This will be described as an example.

FIG. 3A is an embodiment of the first service local repeater shown in FIG. 1.

Referring to FIG. 3A, the first service local station repeater 200-1 receives an optical signal from the link home station repeater 100 and distributes some signals to the second service local station repeater 200-2. A second optical diplexer 210 for transmitting the reverse signal converted into a signal to the link station repeater 100 and an optical signal from the second optical diplexer 210 are converted into electrical signals and distributed. Service relay unit 230 for reproducing the electric signal received from the third converter 220 and the third converter 220 for each relay sector and converts the reverse signal received from the subscriber station to different frequencies for each relay sector. The forward signal reproduced by the service relay unit 230 is transmitted to the subscriber station through the sector antenna 300, and the reverse signal received from the subscriber station through the sector antenna 300 is the service relay unit 230. Output to output And a fourth converter 250 for synthesizing the reverse signal converted by the service relay unit 230 to different frequencies, converting the signal into an optical signal, and outputting the optical signal to the second optical diplexer 210. do.

The third converter 220 may include second photoelectric conversion means 222 for converting an optical signal received from the second optical diplexer 210 into an electrical signal, and electricity converted by the second photoelectric conversion means 222. And a fifth distribution means 224 for separating the modem monitoring control signal and the reference signal included in the signal and distributing the electrical signal to the forward service relay unit 232.

Here, the diplexer 240 is configured to transmit the forward signal and the reverse signal for each of the relay sectors α , β , r , ..., n.

The service relay unit 230 reproduces the electric signal distributed from the third converter 220 for each relay sector and outputs the forward service relay unit 232 to the diplexer 240 of the corresponding relay sector, and the corresponding relay sector. The first reverse service relay unit 234 converts the reverse signal received from the diplexer 240 to different frequencies for each relay sector and outputs the same to the fourth converter 250.

The fourth conversion unit 250 receives the fourth combining means 252 for synthesizing the signal of the predetermined frequency band among the signals received from the first reverse service relay 234 and the input from the fourth combining means 252. Fifth synthesizing means 254 for synthesizing the modem monitoring control signal and diversity reception signal with the synthesized signal, and converting the signal synthesized by the fifth synthesizing means 254 into an optical signal to convert the second optical diplexer 210 into an optical signal. And a second light conversion means (256) for outputting.

FIG. 3B is an embodiment of a forward service relay unit, a first reverse service relay unit, a diplexer, and a sector antenna shown in FIG. 3A. FIG. 3C is a block for each relay sector of the forward service relay unit and the first reverse service relay unit. It is a block diagram.

3B and 3C, the forward service relay unit 232 may include fourth filter means A1, B1, and C1 for extracting signals of mobile communication companies from electrical signals distributed from the fifth distribution means 224. Third playback means (A2, B2, C2) for reproducing the signals extracted by the fourth filter means (A1, B1, C1), respectively, and forward signals reproduced by the third playback means (A2, B2, C2). A third synthesis for synthesizing the high output amplification means (A3, B3, C3) and the high output amplification signal from the high output amplification means (A3, B3, C3) for outputting to the diplexer 240 of the corresponding relay sector, respectively. The means 232-1 are included for each relay sector.

The first reverse service relay unit 234 may perform low noise amplification of the reverse signal received from the corresponding diplexer 240, and low noise by the third low noise amplifying means 234-2. Second frequency converting means 234-4 for converting the amplified reverse signal to a predetermined frequency for each relay sector, and fifth filter means 234 for filtering the signal frequency-converted by the second frequency converting means 234-4. -6) is included for each relay sector.

Figure 4 is a block diagram showing another embodiment of an integrated mobile communication repeater system according to the present invention.

4A is a block diagram showing another embodiment of the link mother repeater, and the second low noise for low noise amplifying the reverse signal distributed by the first distributing means 144 to the link mother repeater 100 of FIG. 2A. Amplifying means 147, third distributing means 149 for distributing the low noise amplified signal from the second low noise amplifying means 147, and signals received from the third distributing means 149 for each of the relay sectors to reproduce the signals. The second reverse link relay unit 116 which transmits to the terminal is further added.

Then, the fourth distribution means 125 for distributing the signal synthesized by the second synthesizing means 124 and the signal distributed by the fourth distribution means 125 so as to be relayed to an area where the optical cable is not connected. The first microwave means 127 for transmitting to the first service local station 200-1 may be further configured.

FIG. 4B is a block diagram of the second reverse link relay unit 116 shown in FIG. 4A, and is configured like the first reverse link relay unit 114 shown in FIG. 2C. The second reverse link relay unit 116 transmits the second reproducing means 116-1 for reproducing the signal received from the third distributing means 149 and the reverse signal regenerated by the second reproducing means 116-1. A third filter means 116-2 for filtering and a third amplification means 116-3 for amplifying the signal filtered by the third filter means 116-2 are included for each relay sector.

FIG. 4C is a block diagram illustrating another embodiment of a service local station repeater, and relays a backward signal input through the diversity sector antenna 310 to the first service local station 200-1 in FIG. 3A. A fifth combining means 254 by synthesizing a signal of a predetermined frequency band among signals frequency-converted by the second reverse service relay 236 and a second reverse service relay 236 for converting to different frequencies for each sector; The sixth synthesizing means 253 to be outputted is added.

Then, the second microwave means 225 and the second microwave means 225 for receiving the signal transmitted by the link station repeater 100 to the first service local relay 200-1 are received. A seventh synthesizing means 223 for synthesizing the signal and the signal converted by the second photoelectric conversion means 222 and outputting it to the fifth distributing means 224 may be further configured.

FIG. 4D is a block diagram of the second reverse service relay unit, and FIG. 4E is a block diagram of each relay sector in the second reverse service relay unit. The second reverse service relay is configured like the first reverse service relay shown in Fig. 3C.

The second reverse service relay unit 236 includes fourth low noise amplifying means 236-2 for low noise amplifying the reverse signal received through the diversity sector antenna 310, and fourth low noise amplifying means 236-2. Third frequency converting means 236-4 for converting the low-noise amplified reverse signal into a predetermined frequency for each relay sector, and sixth filter means for filtering the signal frequency-converted by the third frequency converting means 236-4. (236-6) for each relay sector.

In the present invention configured as described above, a process in which the integrated mobile communication repeater system converts the forward and reverse signals of the mobile communication company by frequency sector for each relay sector will be described in detail with reference to FIGS. 1 to 4.

First, a forward relay process transmitted from a base station (not shown) to a subscriber station will be described. Forward signals from different mobile carriers inputted from the base station to the link relay station 100 are integrated in the forward link repeater 112 for each relay sector and converted into different frequencies.

That is, the forward signals of different mobile carriers received from the base station are synthesized as one signal by the first combining means 112-1 of the forward link relay 112, and then the first frequency converting means 112-2. In the relay sector, each frequency is converted into a predetermined frequency. At this time, it is preferable that the center frequency of each relay sector can be transmitted simultaneously with each other.

In the present embodiment, the three mobile communication companies (A, B, C) as an example, but is not limited thereto.

The signal converted to a predetermined frequency by the first frequency converting means 112-2 is filtered by the first filter means 112-3, and then amplified by the first amplifying means 112-4 to filter the synthesis unit. Is output to 122.

The filter synthesis unit 122 may be a signal within a predetermined frequency band among the signals converted by the forward link relay 112 (for example, signals in α , β , r , ..., n relay sector bands). Only synthesize

The signal synthesized by the filter synthesizing unit 122 is synthesized with the modem monitoring control signal and the reference signal by the second synthesizing means 124, and converted into an optical signal by the first optical converting means 126 to convert the first optical diplexer. Is output to 130.

The first optical diplexer 130 transmits the signal converted into the optical signal by the first converter 120 to the first service local relay 200-1 through the optical cable.

The second optical diplexer 210 of the first service local repeater 200-1 receiving the optical signal from the link home station repeater 100 passes some signals to the second service local repeater 200-2. The remaining signal is output to the second photoelectric conversion means 222.

The optical signal output to the second photoelectric conversion means 222 is converted into an electrical signal and then distributed to the forward service relay 232 in the fifth distribution means 224. At this time, the fifth distribution means 224 separates the modem monitoring control signal and the reference signal transmitted together by the link station repeater 100.

The electrical signal distributed by the fifth distribution means 224 is reproduced for each relay sector by the forward service relay 232. That is, the signals for each mobile carrier are extracted from the fourth filter means A1, B1, C1, and then reproduced by the third reproducing means A2, B2, C2, respectively. Then, the high output amplification means (A3, B3, C3) are each amplified high output, synthesized as a single signal in the third synthesizing means (232-1) and output to the corresponding diplexer 240.

The signal input to the diplexer 240 is transmitted to the subscriber station through the corresponding sector antenna (300). The number of sector antennas 300 may vary depending on the configuration of the repeaters and the number of operators.

Next, the reverse relay process transmitted from the subscriber station to the base station is as follows.

The reverse signal received from the subscriber station through the sector antenna 300 is output to the first reverse service relay unit 234 through the corresponding diplexer 240. At this time, the reverse signal received from the subscriber station may include all the A, B, C signals of the three mobile communication companies.

For example, through the reverse signal α sector antenna (A, B, C) received from the subscriber station is output to the α diplexer (240 α) the first reverse service relaying unit (234 α) through.

The first reverse service relay 234 converts the reverse signal received from the diplexer 240 into different frequencies for each relay sector and outputs the frequency to the fourth converter 250. That is, the reverse signal output from the diplexer 240 is low noise amplified by the third low noise amplifying means 234-2, converted to a predetermined frequency by the second frequency converting means 234-4, and then the fifth filter. Is filtered in the means 234-6.

In addition, the reverse signal converted into different frequencies by the first reverse service relay unit 234 is a signal of a frequency band predetermined in the fourth combining means 252 (for example, α , β , r , ..., only signals in the n relay sector band) are combined with the modem monitoring control signal and the diversity reception signal in the fifth combining means (254).

The signal synthesized by the fifth combining means 254 is converted into an optical signal by the second optical converting means 256 and then output to the second optical diplexer 210.

The second optical diplexer 210 transmits the optical signal received from the second optical conversion means 256 to the link station repeater 100 through the optical cable.

The optical signal transmitted from the first service local relay 200-1 is output to the first photoelectric conversion means 142 through the first optical diplexer 130. The first photoelectric conversion means 142 converts the optical signal received from the first optical diplexer 130 into an electrical signal, and the electrical signal converted by the first photoelectric conversion means 142 is the first distribution means 144. )

The first distribution means 144 separates the modem monitoring control signal and the diversity reception signal included in the electrical signal converted by the first photoelectric conversion means 142.

The signal output from the first distribution means 144 is low noise amplified by the first low noise amplification means 146 and then distributed from the second distribution means 148 to the first reverse link relay 114.

The first reverse link relay 114 reproduces the signal received from the second distribution means 148 for each relay sector and transmits the signal to the base station. That is, the signal output from the second converter 140 is reproduced as the original signal by the first reproducing means 114-1 and then filtered by the second filter means 114-2. Then, it is amplified by the second amplifying means 114-3 and transmitted to the base station.

As described above, bidirectional communication is possible by relaying forward and reverse signals for each relay sector.

On the other hand, when using the spatial diversity to increase the reliability of the communication, the system of the integrated mobile communication repeater may be implemented as shown in FIG.

In this case, the newly added second reverse service relay unit 236 transmits the reverse signal received from the subscriber station through the diversity sector antenna 310 as the first reverse service relay unit 234 for different relay sectors. Convert to The second reverse link relay unit 116 reproduces a signal for each relay sector like the first reverse link relay unit 114 and transmits the signal to the base station.

The sector antenna 310 for diversity is preferably provided spaced apart from the sector antenna 310 by several tens of wavelengths.

The present invention distributes the optical signal received from the link repeater 100 to the next station service local station repeater using the second optical diplexer 210, and the optical signal received from the service local station repeater of the previous stage. Synthesized and transmitted to the link station repeater 100.

As described above, the present invention can significantly reduce the installation cost and the usage fee of the optical cable by using the series coupling method.

In addition, the present invention can be extended not only to the series coupling method but also to the parallel and serial and parallel coupling methods.

In addition, according to the present invention, the forward signal can be wirelessly transmitted through the first microwave means 127 instead of the optical cable, and the second microwave means 225 can receive and relay the forward signal.

The present invention is not limited to the embodiments described above, and various modifications and changes can be made by those skilled in the art, which are included in the spirit and scope of the present invention as defined in the appended claims.

As described above, in the present invention, a plurality of mobile communication service providers can perform broadband relaying by integrating signals of various frequency bands serviced by each relay sector.

In other words, by integrating signals serviced by mobile communication providers such as three PCS companies, IMT-2000 three to four companies, and two cellular companies, the repeater is configured to perform broadband relay for each relay sector. Can be reduced.

In addition, communication reliability is improved by using spatial diversity, and wireless communication can be performed even in an area where an optical cable is not installed.

In addition, the mobile communication network can be extended in series and parallel as well as in parallel.

Claims (21)

Integrate forward signals of different mobile communication companies received from the base station to convert the frequency by relay sector, and then convert the optical signal to transmit the optical signal. A link station repeater for transmitting; And After converting the optical signal transmitted from the link base station repeater into an electrical signal, it is reproduced for each relay sector and serviced to a subscriber station, and frequency conversion and synthesis of the reverse signal received from subscriber stations of different mobile carriers for each relay sector Integrated mobile communication repeater system comprising one or more service local repeater for converting the optical signal to the link station repeater. 2. The link home relay according to claim 1, wherein A link relay unit for integrating forward signals received from the base station, converting them into different frequencies for each relay sector, reproducing the reverse signal converted into an electrical signal for each relay sector, and transmitting the same to the base station; A first converter for synthesizing the forward signal output from the link relay unit into an optical signal; A first optical diplexer for transmitting a forward signal converted from the first converter into an optical signal to the service local station repeater and receiving an optical signal from the service local station repeater; And And a second conversion unit which receives an optical signal from the first optical diplexer, converts the optical signal into an electrical signal, and distributes the optical signal to the link relay unit. The method of claim 2, wherein the link relay unit A forward link relay unit integrating forward signals received from the base station and converting the signals into different frequencies for each relay sector; And And a first reverse link repeater for reproducing the signal received from the second converter for each relay sector and transmitting the signal to the base station. 4. The forward link relay of claim 3, wherein the forward link relay unit First synthesizing means for synthesizing a forward signal received from the base station; First frequency converting means for converting the signal synthesized by the first synthesizing means into a predetermined frequency for each relay sector; First filter means for filtering the signal frequency-converted by the first frequency converting means; And a first amplifying means for each of the relay sectors, the first amplifying means for amplifying the signal filtered by the first filter means. 4. The apparatus of claim 3, wherein the first reverse link relay unit First reproducing means for reproducing a signal received from the second converting unit as an original signal; Second filter means for filtering the reverse signal reproduced by said first reproducing means; And And a second amplifying means for each of a relay sector for amplifying the signal filtered by the second filter means. The method of claim 3, wherein the first conversion unit A filter synthesizer for synthesizing a signal having a predetermined frequency band among forward signals received from the forward link relay; Second synthesizing means for synthesizing a modem monitoring control signal and a reference signal with the signal synthesized by the filter synthesizing unit; And And a first optical conversion means for converting the signal synthesized by the second combining means into an optical signal. The method of claim 3, wherein the second conversion unit First photoelectric conversion means for converting an optical signal received from the first optical diplexer into an electrical signal; First distribution means for separating a modem monitoring control signal and a diversity reception signal included in the electrical signal converted by the first photoelectric conversion means and distributing the electrical signal; First low noise amplifying means for low noise amplifying the electrical signal distributed by the first distributing means; And And second distribution means for distributing the low noise amplified signal from the first low noise amplifying means to the first reverse link relay. 8. The link home station repeater according to claim 7, Second low noise amplifying means for low noise amplifying the reverse signal distributed by the first distributing means; Third distribution means for distributing a low noise amplified signal in the second low noise amplifying means; And And a second reverse link repeater for reproducing the signal received from the third distribution means for each relay sector and transmitting the signal to the base station. The method of claim 8, wherein the second reverse link relay unit Second reproducing means for reproducing a signal received from the third distributing means; Third filter means for filtering the reverse signal reproduced by said second reproducing means; And And a third amplifying means for each of the relay sectors, the third amplifying means for amplifying the signal filtered by the third filter means. 7. The home station repeater of claim 6, wherein Fourth distribution means for distributing the signal synthesized in the second combining means; And And first microwave means for transmitting the signal distributed by the fourth distribution means to the service local station repeater. 11. The home relay of any of claims 1 to 10, wherein A second optical diplexer which receives an optical signal from the link mother station repeater and distributes a part of the signal to another service local station repeater, and transmits a reverse signal converted into an optical signal to the link mother station repeater; A third converter which receives an optical signal from the second optical diplexer and converts the optical signal into an electrical signal; A service relay unit for reproducing the electric signal distributed from the third converter for each relay sector, and converting the reverse signal received from the subscriber station into different frequencies for each relay sector; A diplexer for transmitting a forward signal reproduced by the service relay unit to the subscriber station through a corresponding sector antenna and outputting a reverse signal received from the subscriber station through the sector antenna to the service relay unit; And And a fourth converter for synthesizing the reverse signals converted to different frequencies by the service relay unit, converting the reverse signals into optical signals, and outputting the optical signals to the second optical diplexer. The method of claim 11, wherein the service relay unit A forward service relay unit which reproduces the electric signal distributed from the third converter unit for each relay sector and outputs the electric signal to the diplexer; And And a first reverse service relay unit converting a reverse signal received from the diplexer into different frequencies for each relay sector and outputting the reverse signal to the fourth converter. The method of claim 12, wherein the third conversion unit Second photoelectric conversion means for converting an optical signal received from the second optical diplexer into an electrical signal; And And a fifth distribution means for distributing the signal converted into the electrical signal by the second photoelectric conversion means to the forward service repeater. The method of claim 12, wherein the forward service relay unit Fourth filter means for extracting a signal of each mobile communication company from the electric signal distributed from the third converter; Third reproducing means for reproducing the signal extracted by the fourth filter means, respectively; High output amplifying means for high output amplifying each forward signal reproduced by said third reproducing means; And And a third synthesizing means for synthesizing the high power amplified signal by the high power amplifying means for each relay sector. The method of claim 12, wherein the first reverse service relay unit Third low noise amplifying means for low noise amplifying the reverse signal received from the diplexer; Second frequency converting means for converting a low noise amplified reverse signal by the third low noise amplifying means into a predetermined frequency for each relay sector; And a fifth filter means for filtering the frequency-converted signal by the second frequency conversion means for each relay sector. The integrated mobile communication repeater system of claim 12, wherein the diplexer is configured to transmit a forward signal and a reverse signal for each relay sector. The method of claim 12, wherein the fourth conversion unit Fourth synthesizing means for synthesizing a signal having a predetermined frequency band among the signals received from the first reverse service relay; Fifth synthesizing means for synthesizing a modem monitoring control signal and a diversity reception signal with the synthesized signal received from the fourth combining means; And And second optical conversion means for converting the signal synthesized by the fifth combining means into an optical signal and outputting the optical signal to the second optical diplexer. 18. The home relay of claim 17, wherein A second reverse service relay unit converting a reverse signal received through a diversity sector antenna into different frequencies for each relay sector; And And a sixth synthesizing means for synthesizing a signal of a predetermined frequency band among the signals converted in frequency by the second reverse service relay unit and outputting the synthesized signal to the fifth synthesizing means. 19. The method of claim 18, wherein the second reverse service relay unit Fourth low noise amplifying means for low noise amplifying the reverse signal inputted through the diversity sector antenna; Third frequency converting means for converting a low noise amplified reverse signal by the fourth low noise amplifying means into a predetermined frequency for each relay sector; And And a sixth filter means for filtering the frequency-converted signal by the third frequency conversion means for each relay sector. 14. The home relay of claim 13, wherein Second microwave means for receiving a signal transmitted by the link mother station repeater; And And a sixth synthesizing means for synthesizing the signal received by the second microwave means and the signal converted by the second photoelectric conversion means and outputting the synthesized signal to the fifth distribution means. 12. The home relay of claim 11, wherein Integrated mobile communication repeater system, characterized in that it can be extended by a series coupling method.