KR200360431Y1 - unified radio frequency repeater - Google Patents

Abstract

The present invention relates to an integrated wireless repeater for relaying a specific indoors by integrating a plurality of communication services in the communication system. In more detail, the present invention provides a first wideband antenna for receiving high frequency (RF) signals of a plurality of communication frequency bands, a duplexer for separating the high frequency (RF) signals received through the first wideband antenna, and the received high frequency. And a second broadband antenna for separating and amplifying the RF signals for each communication frequency band and a second broadband antenna for transmitting the amplified high frequency (RF) signals for each communication frequency band. It is about.

Description

Integrated radio repeater {unified radio frequency repeater}

The present invention relates to a communication system, and more particularly, to an integrated wireless repeater which integrates a plurality of communication services and relays them in a specific indoor.

In general, a wireless communication system aims to provide a high quality communication service to a subscriber anywhere.

Accordingly, in recent mobile communication systems, shaded areas with poor mobile communication services are found, and wireless repeaters are installed in the shaded areas.

The wireless repeater installed in the shadow area as described above amplifies and transmits the weak signal.

That is, the wireless repeater amplifies the forward signal transmitted from the system side (a configuration including a base station, a switching station, etc. in the mobile communication) to the terminal side, and amplifies the reverse signal transmitted from the terminal side to the system side.

Figure 1 is a block diagram showing the configuration of a conventional single frequency band wireless repeater of the intermediate frequency (IF) method, showing the configuration of a single frequency band wireless repeater of the intermediate frequency (hereinafter, referred to as IF) method.

Referring to FIG. 1, a conventional wireless repeater includes antennas for signal transmission and reception, a low noise amplifier (LNA) 2 and a preamplifier in a forward path (the path from the system side to the terminal side). 3) and IF module (4), sawtooth filter (5), mixer (6) and power amplifier (HPA: High Power Amplifier) (7), with reverse path (path from terminal side to system side) A low noise amplifier (LNA) 8, a preamplifier 10, an IF module 11, a sawtooth filter 12, a mixer 13, and a power amplifier (HPA) 14 are provided. The wireless repeater also includes duplexers (1, 8) for separating the received signal and the transmitted signal. The wireless repeater also includes an auto-gain controller (AGC) 15 for adjusting the gain of the power amplifiers 7, 14.

Referring to the operation of the forward path according to the above configuration, the high frequency (RF) signal received through the antenna is separated only by the received frequency signal by the duplexer (1). This separated signal is amplified by the low noise amplifier 2 and also by the preamplifier 3.

Thereafter, the IF module 4 processes the high frequency signal down-frequency into the IF signal. The down-frequency processed signal is filtered by the sawtooth filter 5, and the signal filtered by the sawtooth filter 5 into the IF band is amplified by the power amplifier 7 and transmitted through the antenna.

Referring to the reverse path, the IF signal received through the antenna is separated only by the reception frequency signal by the duplexer (8). This separated signal is amplified by the low noise amplifier 9 and also by the preamplifier 10.

Thereafter, the IF module 11 processes the IF signal uplink into a high frequency signal. The up-frequency processed signal is filtered by the sawtooth filter 12, and the signal filtered into the band by the sawtooth filter 12 is amplified by the power amplifier 14 and transmitted through the antenna.

Figure 2 is a block diagram showing the configuration of a conventional high frequency (RF) single frequency band wireless repeater, showing a configuration of a single frequency band wireless repeater of the radio frequency (hereinafter, referred to as RF).

Referring to FIG. 2, a conventional wireless repeater is provided with antennas for signal transmission and reception, a low noise amplifier (LNA) 22, a preamplifier 23 and a band in a forward path (path from the system side to the terminal side). A band pass filter (BPF) 24 and a power amplifier (HPA) 25 are provided, and a low noise amplifier (LNA) 27 and a preamplifier 28 are provided in the reverse path (the path from the terminal side to the system side). ), A band pass filter (BPF) 29 and a power amplifier (HPA) 30. The wireless repeater also includes duplexers 21 and 26 for separating the received signal and the transmitted signal. The wireless repeater also has an automatic gain controller (AGC) 31 for adjusting the gain of the power amplifiers 25, 30.

Referring to the operation of the forward path according to the above configuration, the RF signal received through the antenna is separated only the reception frequency signal by the duplexer 21. This separated signal is amplified by the low noise amplifier 22 and also by the preamplifier 23.

The band pass filter 24 then filters the signal into the required frequency band (one frequency band). The signal filtered by the bandpass filter 24 is amplified by the power amplifier 25 and transmitted through the antenna.

Referring to the reverse path, the RF signal received through the antenna is separated only by the received frequency signal by the duplexer 26. This separated signal is amplified by the low noise amplifier 27 and also by the preamplifier 28.

Thereafter, the bandpass filter 29 filters the signal into the required frequency band (one frequency band). The signal filtered by the bandpass filter 29 is amplified by the power amplifier 30 and transmitted through the antenna.

However, the above-mentioned conventional wireless repeater has one band per specific carrier, that is, 2G CDMA (2nd generation code division multiple access), CDMA2000-1xEV-DO (CDMA2000-1x evolution-data optimized), CDMA2000-1xEV-DV ( Signals are relayed using only one single band of communication service bands corresponding to CDMA2000-1x evolution-data and voice (WDMA), wideband-CDMA (W-CDMA), satellite digital multimedia broadcasting (DMB), and wireless Internet.

In other words, the conventional wireless repeater (aka RF Repeater) only passed a single frequency band, and did not accommodate the bands of other communication services.

This is because the band pass filter (Band Pass Filter) built in the conventional wireless repeater passes only one frequency band, it was able to support only the communication service of the frequency that the band pass filter passes.

An object of the present invention has been made in view of the above, it is to provide an integrated wireless repeater suitable for relaying a plurality of communication services provided by a plurality of communication providers in one.

Another object of the present invention is to provide an integrated wireless repeater suitable for integrating all types of wireless communication services to guarantee better communication quality in a service shadow area such as indoor (In-Building).

Another object of the present invention is to provide an integrated wireless repeater suitable for integrating and relaying signals such as voice, data, video, Internet, and broadcasting (TV and radio broadcasting) services using wireless communication.

A first feature of an integrated wireless repeater according to the present invention for achieving the above object is a first broadband antenna for receiving high frequency (RF) signals of multiple communication frequency bands, and a high frequency received through the first broadband antenna ( A duplexer for separating RF signals, a forward relay block that separates and amplifies the received high frequency (RF) signals for each communication frequency band, and transmits the amplified high frequency (RF) signals for each amplified communication frequency band It is configured to include a second broadband antenna.

More preferably, the first wideband antenna receives the high frequency (RF) signals transmitted in a forward path from a system side to a terminal side, and the second wideband antenna receives the amplified high frequency (RF) signals in the forward path. Send it out.

Also preferably, the forward relay block may include a low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the first wideband antenna, and separate the output of the preamplifier for each communication frequency band. A divider, a plurality of band pass filters (BPFs) for filtering signals separated for each communication frequency band into signals of different frequency bands, and a combiner for summing outputs of the band pass filters. ), A power amplifier (HPA) for amplifying the output of the combiner, and an automatic gain controller (AGC) for adjusting the gain of the power amplifier. In particular, the band pass filters include band pass filters for filtering high frequency signals of at least one mobile communication frequency band, and band pass filters for filtering high frequency signals of at least one unidirectional broadcasting frequency band.

The wireless repeater may further include another second duplexer for separating high frequency (RF) signals of multiple communication frequency bands received through the second wideband antenna, and a high frequency received through the second wideband antenna. It further comprises a reverse relay block for transmitting through the first wideband antenna after amplifying the RF signal by separating each communication frequency band. In particular, the reverse relay block may include a low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the second wideband antenna, and a divider for separating the output of the preamplifier for each communication frequency band. (Divider), a plurality of band pass filters (BPFs) for filtering the separated signal for each communication frequency band into a signal of a different frequency band, a combiner (combiner) for summing the outputs of the band pass filters; And a power amplifier (HPA) for amplifying the output of the combiner.

The wireless repeater may further include a low noise amplifier (LNA) and a preamplifier for amplifying a high frequency signal of at least one unidirectional broadcast frequency band received through the first wideband antenna, and outputting the output of the proamp to the unidirectional broadcast frequency. And a band pass filter (BPF) for filtering the signals of the band, and a power amplifier (HPA) for amplifying the output of the band pass filter.

A second feature of the integrated wireless repeater according to the present invention for achieving the above object is at least one first wideband antenna block for receiving high frequency (RF) signals of different frequency bands, and the first wideband antenna block Forward relay blocks that perform the filtering by converting the RF signals received through the intermediate frequency IF, and convert the amplified signals by converting the filtered signals into the high frequency RF, and are output from the forward relay blocks. It comprises a second wideband antenna block for transmitting high frequency (RF) signals for each communication frequency band.

More preferably, the first wideband antenna block includes a first wideband antenna for receiving a high frequency (RF) signal of a first frequency band transmitted in a forward path from a system side to a terminal side, and a second frequency transmitted in the forward path. And a second wideband antenna for receiving a high frequency (RF) signal of a band, and a third wideband antenna for receiving a high frequency (RF) signal of a third frequency band transmitted through the forward path.

In particular, the forward relay blocks may include a low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the first broadband antenna, and convert the output of the preamplifier into an intermediate frequency (IF) signal. An IF module, a sawtooth filter for filtering the output of the IF module to an intermediate frequency (IF) band, a mixer for converting the output of the sawtooth filter into a high frequency (RF) signal, and amplifying the output of the mixer A first forward relay block including a power amplifier (HPA), a low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the second broadband antenna, and an output of the preamplifier An IF module for converting the frequency (IF) signal, a sawtooth filter for filtering the output of the IF module into an intermediate frequency (IF) band, and an output of the sawtooth filter to a high frequency (RF) signal A second forward relay block including a mixer, a power amplifier (HPA) that amplifies the output of the mixer, and a low noise amplifier (LNA) for amplifying the high frequency (RF) signals received through the second wideband antenna; And a preamplifier, an IF module for converting the output of the preamplifier to an intermediate frequency (IF) signal, a sawtooth filter for filtering the output of the IF module to an intermediate frequency (IF) band, and an output of the sawtooth filter A third forward relay block including a mixer for converting a high frequency (RF) signal, a power amplifier (HPA) for amplifying the output of the mixer, and a power amplifier included in the first to third forward relay blocks. It includes an automatic gain controller (AGC) to adjust the gain.

More preferably, the wireless repeater performs filtering by converting high frequency (RF) signals of a plurality of communication frequency bands received through the second broadband antenna block into an intermediate frequency (IF), and converts the filtered signal into a high frequency ( It further includes a reverse relay block for converting and amplifying to RF).

In particular, the reverse relay blocks may include a low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the second wideband antenna block, and the output of the preamplifier is an intermediate frequency (IF) signal. An IF module for converting, a sawtooth filter for filtering the output of the IF module to an intermediate frequency (IF) band, a mixer for converting the output of the sawtooth filter to a high frequency (RF) signal, and an output of the mixer It includes a number of forward relay blocks, including amplifying power amplifiers (HPAs).

A third feature of the integrated wireless repeater according to the present invention for achieving the above object is to convert the high frequency (RF) signals of different frequency bands to the intermediate frequency (IF) to perform filtering, and to filter the filtered signal high frequency Forward relay blocks for converting (RF), amplifying and transmitting the converted high frequency (RF) signal, and reverse relay for amplifying and separating the high frequency (RF) signals of different frequency bands for each frequency band It is composed of blocks.

Other objects, features and advantages of the present invention will become apparent from the detailed description of the embodiments with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a single frequency band wireless repeater of a conventional intermediate frequency (IF) method.

Figure 2 is a block diagram showing the configuration of a conventional high frequency (RF) single frequency band wireless repeater.

Figure 3 is a block diagram showing the configuration of an integrated wireless repeater according to a first embodiment of the present invention.

Figure 4 is a block diagram showing the configuration of an integrated wireless repeater according to a second embodiment of the present invention.

Figure 5 is a block diagram showing the configuration of an integrated wireless repeater according to a third embodiment of the present invention.

Figure 6 is a block diagram showing the configuration of an integrated wireless repeater according to a fourth embodiment of the present invention.

Figure 7 is a block diagram showing the configuration of an integrated wireless repeater according to a fifth embodiment of the present invention.

Figure 8 is a block diagram showing the configuration of an integrated wireless repeater according to a sixth embodiment of the present invention.

Figure 9 is a block diagram showing the configuration of an integrated wireless repeater according to a seventh embodiment of the present invention.

10 is a view showing a service example using the integrated wireless repeater of the present invention.

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the embodiment of the present invention, the configuration and operation of the present invention shown in the drawings and described by it will be described by at least one embodiment, By the technical idea of the present invention and its core configuration and operation is not limited.

The present invention includes personal communication service (PCS), international mobile telecommunication (IMT-2000), wideband-code division multiple access (W-CDMA), code Split Multiple Access (CDMA), Global System for Mobile Communication (GSM), Universal Mobile Telecommunication Service (UMTS), Future Public Land Mobile Telecommunication System (FPLMTS) Signals for all wireless communication methods such as satellite digital multimedia broadcasting (DMB), terrestrial DMB, television broadcasting, radio broadcasting and wireless internet as well as mobile communication such as Trunked Radio System (TRS) It consists of an integrated wireless repeater that supports relaying.

Or an integrated wireless repeater supporting signal relaying only for wireless communication methods required for a corresponding area (particularly, a shaded area) among the wireless communication methods listed above.

3 is a block diagram showing a configuration of an integrated wireless repeater according to a first embodiment of the present invention, and shows a configuration of an integrated wireless repeater supporting multiple frequency bands of an RF scheme.

In particular, FIG. 3 illustrates an example of a wireless repeater that supports signal relay for three mobile communication methods, and is not necessarily limited to supporting three mobile communication signal relays.

Referring to FIG. 3, the wireless repeater of the present invention is a low noise amplifier (LNA) 110 in the antennas (especially, broadband antennas) and the forward path (path from the system side to the terminal side) responsible for transmitting and receiving mobile communication signals. ), The preamplifier 120, the divider 130, the plurality of band pass filters (BPFs) 131 to 133, the combiner 134, and the power amplifier (HPA) 140. And a low noise amplifier (LNA) 160, a preamplifier 170, a divider 180, a plurality of band pass filters (BPFs) 181 to 183 in the reverse path (the path from the terminal side to the system side); A combiner 184 and a power amplifier (HPA) 190 are provided. In addition, the wireless repeater of the present invention includes duplexers (Duplexers) (100,150) for separating the received signal and the transmitted signal. In addition, the wireless repeater of the present invention includes an automatic gain controller (AGC) 200 for adjusting the gain of the power amplifiers 140 and 190.

Referring to the operation of the forward path according to the above configuration, the RF signal received through one broadband antenna is separated by only the receiving frequency signal by the duplexer 100 is converted into an electrical signal. The signal output from the duplexer 100 is amplified by the low noise amplifier 110 and amplified by the preamplifier 120.

Thereafter, the divider 130 separates the signals of three different mobile communication methods and sends them to each band pass filter 131 to 133.

The first bandpass filter 131 filters the signal to the first frequency band, the second bandpass filter 132 filters the signal to the second frequency band, and the third bandpass filter 133 is the third frequency. Filter the signal into bands. That is, each band pass filter 131 to 133 filters signals of different frequency bands.

Each frequency band signal filtered by each bandpass filter 131 to 133 is combined into one by the combiner 134. The combined signal is amplified by the power amplifier 140 and then transmitted through the broadband antenna.

Referring to the reverse path, the RF signal received through one broadband antenna is separated by only the reception frequency signal by the duplexer 150 is converted into an electrical signal. The signal output from the duplexer 150 is amplified by the low noise amplifier 160 and also by the preamplifier 170.

Thereafter, the divider 180 divides the signals of three different mobile communication methods and sends them to each band pass filter 181 to 183.

The first bandpass filter 181 filters the signal to the first frequency band, the second bandpass filter 182 filters the signal to the second frequency band, and the third bandpass filter 183 is the third frequency. Filter the signal into bands. That is, each band pass filter 181 to 183 filters signals of different frequency bands.

Each frequency band signal filtered by each bandpass filter 181 to 183 is combined into one by the combiner 184. The combined signal is then amplified by the power amplifier 190 and then transmitted through the broadband antenna.

The integrated wireless repeater according to the first embodiment of the present invention has multiple bands of a plurality of mobile communication operators, that is, 2G CDMA (second generation code division multiple access), CDMA2000-1xEV-DO (CDMA2000-1x evolution-data optimized). ), The CDMA2000-1xEV-DV (CDMA2000-1x evolution-data and voice), W-CDMA (wideband-CDMA) and the like to relay the signal using all the frequency bands of a plurality of mobile communication services.

In other words, the integrated wireless repeater according to the first embodiment of the present invention accommodates multiple frequency bands of various mobile communication schemes.

This is because the integrated wireless repeater includes a plurality of band pass filters for passing the frequency band corresponding to each mobile communication scheme as shown in FIG. 3.

For example, the first bandpass filter combination (BPF) 131,181 passes a frequency band of 2G CDMA (second generation code division multiple access), and the second bandpass filter combination (BPF) 132,182 is a CDMA2000-. A band of 1xEV-DO (CDMA2000-1x evolution-data optimized) is passed, and a third bandpass filter combination (BPF) 133, 183 passes a band of W-CDMA (wideband-CDMA).

For another example, the first bandpass filter combination (BPF) 131,181 passes the frequency band of the first operator serving W-CDMA, and the second bandpass filter combination (BPF) 132,182 is W-. The second band serving the CDMA is passed through, and the third bandpass filter combination (BPF) 133, 183 passes through the third band serving the W-CDMA.

Figure 4 is a block diagram showing the configuration of an integrated wireless repeater according to a second embodiment of the present invention, showing a configuration of an integrated wireless repeater supporting a multi-frequency band of the RF method.

In particular, FIG. 4 illustrates an example of a wireless repeater that supports signal relaying for one or more unidirectional broadcasts while supporting signal relaying for three mobile communication methods. However, the present invention is not necessarily limited to supporting only three mobile communication signal relays and one unidirectional broadcast signal relay.

4, the wireless repeater of the present invention is a low noise amplifier in the antennas (especially broadband antenna) responsible for the transmission / reception of mobile communication signals and wireless broadcast signals, and the forward path (path from the system side to the terminal side) (LNA) 110, preamplifier 120, divider 130, multiple band pass filters (BPFs) 131-133, 135, combiner 134, and power amplifier (HPA). 140, a low noise amplifier (LNA) 160, a preamplifier 170, a divider 180, and a number of bandpass filters (BPFs) in the reverse path (path from the terminal side to the system side); 181 to 183, a combiner 184, and a power amplifier (HPA) 190. In addition, the wireless repeater of the present invention includes duplexers (Duplexers) (100,150) for separating the received signal and the transmitted signal. In addition, the wireless repeater of the present invention includes an automatic gain controller (AGC) 200 for adjusting the gain of the power amplifiers 140 and 190.

As described above, the integrated wireless repeater according to the second embodiment of the present invention further accommodates the unidirectional broadcast signal relay to the integrated wireless repeater according to the first embodiment shown in FIG. 3.

Referring to the operation of the forward path according to the above configuration, the RF signal (including the radio broadcast signal) received through one broadband antenna is separated by the duplexer 100 only the received frequency signal is converted into an electrical signal. The signal output from the duplexer 100 is amplified by the low noise amplifier 110 and amplified by the preamplifier 120.

Thereafter, the divider 130 separates the signals of three different mobile communication methods and the one-way broadcast signal and sends them to each band pass filter 131 to 133 and 135.

The first band pass filter 131, the second band pass filter 132, and the third band pass filter 133 filter mobile communication signals in different frequency bands. The fourth band pass filter 135 filters the unidirectional broadcast signal.

That is, each of the band pass filters 131 to 133 and 135 filters signals of different mobile communication frequency bands, and filters unidirectional broadcast signals different from those mobile communication frequency bands.

Each frequency band signal filtered by each of the band pass filters 131 to 133 and 135 is combined into one by the combiner 134. The combined signal is amplified by the power amplifier 140 and then transmitted through the broadband antenna.

Referring to the reverse path, the RF signal received through one broadband antenna is separated by only the reception frequency signal by the duplexer 150 is converted into an electrical signal. The signal output from the duplexer 150 is amplified by the low noise amplifier 160 and also by the preamplifier 170.

Thereafter, the divider 180 divides the signals of three different mobile communication methods and sends them to each band pass filter 181 to 183.

The first band pass filter 181, the second band pass filter 182, and the third band pass filter 183 filter the mobile communication signal in different frequency bands. In the second embodiment of FIG. 4, since the broadcast signal relay is supported only in one direction, a band pass filter for filtering the broadcast signal is not required in the reverse path.

Each frequency band signal filtered by each bandpass filter 181 to 183 of the reverse path is combined by the combiner 184 into one. The combined signal is then amplified by the power amplifier 190 and then transmitted through the broadband antenna.

The integrated wireless repeater according to the second embodiment of the present invention has multiple bands of a plurality of mobile operators, that is, 2G CDMA (second generation code division multiple access), CDMA2000-1xEV-DO (CDMA2000-1x evolution-data optimized). Satellite digital multimedia broadcasting (DMB), terrestrial DMB, television, as well as frequency bands of many mobile services such as CDMA2000-1xEV-DV (CDMA2000-1x evolution-data and voice) and W-CDMA (wideband-CDMA). Signals are relayed using all frequency bands of a plurality of broadcast services such as broadcast and radio broadcast.

In other words, the integrated wireless repeater according to the second embodiment of the present invention accommodates various mobile communication schemes and multiple frequency bands of one or more unidirectional broadcasts.

As shown in FIG. 4, the integrated wireless repeater includes a plurality of bandpass filters for passing a frequency band corresponding to each mobile communication scheme and a bandpass filter for passing one or more unidirectional radio broadcasts. This is because at least one is provided.

For example, the first bandpass filter combination (BPF) 131,181 passes the frequency band of the PCS, the second bandpass filter combination (BPF) 132,182 passes the frequency band of the CDMA, and the third bandpass. Filter combination (BPF) 133, 183 passes the frequency band of GSM. The other bandpass filter (BPF 135) of the forward path passes the frequency band of the satellite digital multimedia broadcasting (DMB).

In the first and second embodiments described above, the radio repeater uses one antenna (especially, a broadband antenna) for transmitting / receiving a radio signal in the forward path and the reverse path, respectively. In the second embodiment, duplexers are used.

FIG. 5 is a block diagram illustrating a configuration of an integrated wireless repeater according to a third embodiment of the present invention, and illustrates a configuration of an integrated wireless repeater supporting multiple frequency bands of an RF method using separate transmission and reception antennas.

In particular, FIG. 5 illustrates an example of a wireless repeater supporting signal relays for three mobile communication methods as shown in FIG. 3. However, it is not necessarily limited to supporting three mobile communication signal relays.

Referring to FIG. 5, the wireless repeater of the present invention is a broadband antenna 210 for receiving mobile communication signals in a forward path, a broadband antenna 310 for transmitting, and also a broadband for receiving mobile communication signals in a reverse path. An antenna 320 and a broadband antenna 220 in charge of the transmission is provided. In addition, a low noise amplifier (LNA) 110, a preamplifier 120, a divider 130, and a plurality of bandpass filters (BPFs) 131 to 133 in the forward path (the path from the system side to the terminal side). And a combiner (134) and a power amplifier (HPA) 140, the low noise amplifier (LNA) 160 and the preamplifier 170 in the reverse path (path from the terminal side to the system side); The divider 180 includes a plurality of band pass filters (BPFs) 181 to 183, a combiner 184, and a power amplifier (HPA) 190. In addition, the wireless repeater of the present invention includes an automatic gain controller (AGC) 200 for adjusting the gain of the power amplifiers 140 and 190.

Referring to the operation of the forward path according to the above configuration, the RF signal received through the wideband antenna 210 for receiving the forward path is amplified by the low noise amplifier 110 and amplified by the preamplifier 120.

Thereafter, the divider 130 separates the signals of three different mobile communication methods and sends them to each band pass filter 131 to 133.

The first bandpass filter 131 filters the signal to the first frequency band, the second bandpass filter 132 filters the signal to the second frequency band, and the third bandpass filter 133 is the third frequency. Filter the signal into bands. That is, each band pass filter 131 to 133 filters signals of different frequency bands.

Each frequency band signal filtered by each bandpass filter 131 to 133 is combined into one by the combiner 134. The combined signal is amplified by the power amplifier 140 and then transmitted through the forward broadband antenna 310 of the forward path.

Referring to the reverse path, the RF signal received through the receive wideband antenna 320 of the reverse path is amplified by the low noise amplifier 160 and also by the preamplifier 170.

Thereafter, the divider 180 divides the signals of three different mobile communication methods and sends them to each band pass filter 181 to 183.

The first bandpass filter 181 filters the signal to the first frequency band, the second bandpass filter 182 filters the signal to the second frequency band, and the third bandpass filter 183 is the third frequency. Filter the signal into bands. That is, each band pass filter 181 to 183 filters signals of different frequency bands.

Each frequency band signal filtered by each bandpass filter 181 to 183 is combined into one by the combiner 184. The combined signal is amplified by the power amplifier 190 and then transmitted through the wideband antenna 220 for the reverse path.

The integrated wireless repeater according to the third embodiment of the present invention is a multiple band of a plurality of mobile operators, that is, 2G CDMA (second generation code division multiple access), CDMA2000-1xEV-DO (CDMA2000-1x evolution-data optimized) Antennas for transmission and reception of the forward path and the reverse path to relay frequency bands of a plurality of mobile communication services, such as CDMA2000-1xEV-DV (CDMA2000-1x evolution-data and voice) and W-CDMA (wideband-CDMA). Use separately.

Figure 6 is a block diagram showing the configuration of an integrated wireless repeater according to a fourth embodiment of the present invention, showing a configuration of an integrated wireless repeater supporting multiple frequency bands of the RF method.

In particular, FIG. 6 illustrates an example of a wireless repeater that supports signal relay for three mobile communication methods and simultaneously supports signal relay for one or more unidirectional broadcasts. However, the present invention is not necessarily limited to supporting only three mobile communication signal relays and one unidirectional broadcast signal relay.

Referring to FIG. 6, the wireless repeater of the present invention has a broadband antenna 210 for receiving a mobile communication signal, a broadband antenna 310 for transmitting a signal, and antennas for transmitting / receiving a wireless broadcast signal in a forward path. (Particularly, a broadcasting antenna) 230 and 330, and a broadband antenna 320 for receiving mobile communication signals in a reverse path and a broadband antenna 220 for transmitting.

In addition, the wireless repeater of the present invention has a low noise amplifier (LNA) 110, a preamplifier 120, a divider 130 and a plurality of bandpasses in a forward path (path from the system side to the terminal side) for mobile communication. BPFs (131-133), combiner (134) and power amplifier (HPA) 140, low noise in the reverse path (path from the terminal side to the system side) for mobile communication The amplifier (LNA) 160, the preamplifier 170, the divider 180, the plurality of band pass filters (BPFs) 181 to 183, the combiner 184, and the power amplifier (HPA) 190. Equipped. In addition, the wireless repeater of the present invention includes an automatic gain controller (AGC) 200 for adjusting the gain of the power amplifier 140 in the forward path and an automatic gain for adjusting the gain of the power amplifier 190 in the reverse path. It further includes a controller (AGC) 400.

In addition, the wireless repeater includes a low noise amplifier (LNA) 370, a preamplifier 360, a band pass filter (BPF) 350, and a power amplifier (HPA) 340 for relaying a wireless broadcast signal.

As described above, the integrated wireless repeater according to the fourth embodiment of the present invention further accommodates the unidirectional broadcast signal relay to the integrated wireless repeater according to the third embodiment of FIG. 5.

Referring to the operation of the forward path for the mobile communication according to the above configuration, the RF signal received through the broadband reception antenna 210 for the forward path is amplified by the low noise amplifier 110 and also to the preamplifier 120 Is amplified by.

Thereafter, the divider 130 separates the signals of three different mobile communication methods and sends them to each band pass filter 131 to 133.

The first bandpass filter 131 filters the signal to the first frequency band, the second bandpass filter 132 filters the signal to the second frequency band, and the third bandpass filter 133 is the third frequency. Filter the signal into bands. That is, each band pass filter 131 to 133 filters signals of different frequency bands.

Each frequency band signal filtered by each bandpass filter 131 to 133 is combined into one by the combiner 134. The combined signal is amplified by the power amplifier 140 and then transmitted through the forward broadband antenna 310 of the forward path.

Referring to the reverse path for mobile communication, the RF signal received through the receive wideband antenna 320 of the reverse path is amplified by the low noise amplifier 160 and also by the preamplifier 170.

Thereafter, the divider 180 divides the signals of three different mobile communication methods and sends them to each band pass filter 181 to 183.

The first bandpass filter 181 filters the signal to the first frequency band, the second bandpass filter 182 filters the signal to the second frequency band, and the third bandpass filter 183 is the third frequency. Filter the signal into bands. That is, each band pass filter 181 to 183 filters signals of different frequency bands.

Each frequency band signal filtered by each bandpass filter 181 to 183 is combined into one by the combiner 184. The combined signal is amplified by the power amplifier 190 and then transmitted through the wideband antenna 220 for the reverse path.

On the other hand, when the signal relay of the unidirectional broadcast is described, the RF signal received through the broadcast receiving antenna 230 is amplified by the low noise amplifier 370 and amplified by the preamplifier 360.

Thereafter, the band pass filter 350 filters the unidirectional broadcast signal.

The unidirectional broadcast signal filtered by the band pass filter 350 is amplified by the power amplifier 340 and then transmitted through the broadcast transmission antenna 330.

The integrated wireless repeater according to the fourth embodiment of the present invention is a multiple band of a plurality of mobile operators, that is, 2G CDMA (second generation code division multiple access), CDMA2000-1xEV-DO (CDMA2000-1x evolution-data optimized) Satellite digital multimedia broadcasting (DMB), terrestrial DMB, television, as well as frequency bands of many mobile services such as CDMA2000-1xEV-DV (CDMA2000-1x evolution-data and voice) and W-CDMA (wideband-CDMA). Signals are relayed using all frequency bands of a plurality of broadcast services such as broadcast and radio broadcast.

In other words, the integrated wireless repeater according to the fourth embodiment of the present invention accommodates various mobile communication schemes and multiple frequency bands of one or more unidirectional broadcasts.

As shown in FIG. 6, the integrated wireless repeater includes a band pass filter for passing a frequency band corresponding to unidirectional radio broadcasting while having a plurality of band pass filters for passing a frequency band corresponding to each mobile communication scheme. This is because a signal relay path for unidirectional broadcasting is provided.

In the above, examples of the wireless repeater supporting the multiple frequency band of the RF method have been described. Hereinafter, examples of a wireless repeater supporting multiple frequency bands of the IF method will be described.

Figure 7 is a block diagram showing the configuration of an integrated wireless repeater according to a fifth embodiment of the present invention, showing the configuration of an integrated wireless repeater supporting multiple frequency bands of the IF method.

In particular, FIG. 7 illustrates an example of a wireless repeater supporting signal relays for three mobile communication methods. However, the present invention is not necessarily limited to supporting only three mobile communication signal relays.

Referring to FIG. 7, the wireless repeater of the present invention includes a broadband antenna 500 for transmitting and receiving mobile communication signals in a first frequency band, a broadband antenna 600 for transmitting and receiving mobile communication signals in a second frequency band, and a third antenna. Broadband antenna 700 for transmitting and receiving mobile communication signals of the frequency band, the broadband antenna 516 for transmitting and receiving mobile communication signals of the first frequency band and the wideband for transmitting and receiving mobile communication signals of the second frequency band An antenna 616 and a broadband antenna 716 that are responsible for transmitting and receiving mobile communication signals in a third frequency band are provided.

In addition, the wireless repeater of the present invention has a low noise amplifier (LNA) 502, a preamplifier 503, an IF module 504, and a sawtooth wave in a forward path (path from the system side to the terminal side) for mobile communication in the first frequency band. A filter 505, a mixer 506, a power amplifier (HPA) 507, and a low noise amplifier (LNA) in a reverse path (path from the terminal side to the system side) for mobile communication in the first frequency band. 509, a preamplifier 510, an IF module 511, a sawtooth filter 512, a mixer 513 and a power amplifier (HPA) 514. Also provided are duplexers (501,508) for separating received and transmitted signals of the first frequency band, and an automatic gain controller (AGC) 515 for adjusting the gain of the power amplifiers (507,514). .

In addition, the wireless repeater of the present invention has a low noise amplifier (LNA) 602, a preamplifier 603, an IF module 604, and a sawtooth wave in a forward path (path from the system side to the terminal side) for mobile communication in the second frequency band. A low noise amplifier (LNA) with a filter 605, a mixer 606, a power amplifier (HPA) 607, and a reverse path (path from the terminal side to the system side) for mobile communication in the second frequency band. ), A preamplifier 610, an IF module 611, a sawtooth filter 612, a mixer 613, and a power amplifier (HPA) 614. Also provided with duplexers (601, 608) for separating the received signal and the transmitted signal of the second frequency band, the above-described automatic gain controller (AGC) 515 adjusts the gain of the power amplifiers (607, 614).

In addition, the wireless repeater of the present invention has a low noise amplifier (LNA) 702, a preamplifier 703, an IF module 704, and a sawtooth wave in a forward path (path from the system side to the terminal side) for mobile communication in the third frequency band. A low noise amplifier (LNA) having a filter 705, a mixer 706, and a power amplifier (HPA) 707 in a reverse path (path from the terminal side to the system side) for mobile communication in the third frequency band. 709, a preamplifier 710, an IF module 711, a sawtooth filter 712, a mixer 713, and a power amplifier (HPA) 714. Also provided are duplexers (701, 708) for separating the received signal and the transmitted signal of the third frequency band, the above-described automatic gain controller (AGC) 515 adjusts the gain of the power amplifiers (707, 714).

Referring to the operation of the forward path of the first frequency band according to the above configuration, the RF signal received through the wideband antenna 500 for transmission and reception in the first frequency band is separated only by the received frequency signal by the duplexer 501. The separated signal is amplified by the low noise amplifier 502 and the preamplifier 503.

The IF module 504 processes downlink the RF signal into an IF signal which is a baseband frequency.

The sawtooth filter 505 detects signals of a desired frequency band in the IF signal. Thereafter, the mixer 506 converts the IF signal into an RF signal, and the power amplifier 507 amplifies the converted RF signal and transmits it through another transmission / reception broadband antenna 516 of the first frequency band.

In the operation of the reverse path of the first frequency band, only the received frequency signal is separated by the duplexer 508 from the RF signal received through the wideband antenna 516 for transmission and reception in the first frequency band. The separated signal is amplified by the low noise amplifier 509 and the preamplifier 510.

The IF module 511 down-processes the RF signal into an IF signal which is a baseband frequency.

Sawtooth filter 512 detects signals of a desired frequency band in the IF signal. Thereafter, the mixer 513 converts the IF signal into an RF signal, and the power amplifier 514 amplifies the converted RF signal and transmits it through the wideband antenna 500 for transmitting and receiving the first frequency band.

Meanwhile, referring to the operation of the forward path of the second frequency band according to the above configuration, the RF signal received through the wideband antenna 600 for transmission and reception in the second frequency band separates only the reception frequency signal by the duplexer 601. do. The separated signal is amplified by the low noise amplifier 602 and the preamplifier 603.

IF module 604 down-frequency the RF signal into an IF signal which is a baseband frequency.

Sawtooth filter 605 detects signals of a desired frequency band in the IF signal. After that, the mixer 606 converts the IF signal into an RF signal, and the power amplifier 607 amplifies the converted RF signal and transmits it through another wideband antenna 616 for transmission and reception in the second frequency band.

In the operation of the reverse path of the second frequency band, only the received frequency signal is separated by the duplexer 608 from the RF signal received through the wideband antenna 616 for transmission and reception in the second frequency band. The separated signal is amplified by the low noise amplifier 609 and the preamplifier 610.

The IF module 611 down-processes the RF signal into an IF signal which is a baseband frequency.

Sawtooth filter 612 detects signals of a desired frequency band in the IF signal. Thereafter, the mixer 613 converts the IF signal into an RF signal, and the power amplifier 614 amplifies the converted RF signal and transmits it through the wideband antenna 600 for transmission and reception of the second frequency band.

Meanwhile, referring to the operation of the forward path of the third frequency band according to the above configuration, the RF signal received through the wideband antenna 700 for transmission and reception in the third frequency band separates only the reception frequency signal by the duplexer 701. do. The separated signal is amplified by the low noise amplifier 702 and the preamplifier 703.

IF module 704 downlinks the RF signal to an IF signal which is a baseband frequency.

Sawtooth filter 705 detects signals of a desired frequency band in the IF signal. Then, the mixer 706 converts the IF signal into an RF signal, and the power amplifier 707 amplifies the converted RF signal and transmits it through another wideband antenna 716 for transmission and reception in the third frequency band.

In the operation of the reverse path of the third frequency band, the RF signal received through the wideband antenna 716 for transmission and reception in the third frequency band is separated only by the reception frequency signal by the duplexer 708. The separated signal is amplified by the low noise amplifier 709 and the preamplifier 710.

The IF module 711 downlinks the RF signal to an IF signal which is a baseband frequency.

Sawtooth filter 712 detects signals of a desired frequency band in the IF signal. Thereafter, the mixer 713 converts the IF signal into an RF signal, and the power amplifier 714 amplifies the converted RF signal and transmits it through the wideband antenna 700 for transmission and reception in the third frequency band.

The integrated wireless repeater according to the fifth embodiment of the present invention has multiple bands of a plurality of mobile communication operators, that is, 2G CDMA (second generation code division multiple access), CDMA2000-1xEV-DO (CDMA2000-1x evolution-data optimized). ), The CDMA2000-1xEV-DV (CDMA2000-1x evolution-data and voice), W-CDMA (wideband-CDMA) and the like to relay the signal using all the frequency bands of a plurality of mobile communication services.

For example, the first frequency band path 500 to 516 relays a frequency band signal of a CDMA (second generation code division multiple access method), and the second frequency band path 600 to 616 is a CDMA2000-1xEV-DO ( The CDMA2000-1x evolution-data optimized (FDMA) frequency band signal is relayed, and the third frequency band paths 700 to 716 relay W-CDMA (wideband-CDMA) frequency band signal.

As another example, the first frequency band paths 500 to 516 relay a frequency band signal of a first operator serving W-CDMA, and the second frequency band paths 600 to 616 serve W-CDMA. The third frequency band signal of the second service provider is relayed, and the third frequency band paths 700 to 716 relay the frequency band signal of the third service provider serving W-CDMA.

8 is a block diagram showing the configuration of an integrated wireless repeater according to a sixth embodiment of the present invention, and shows the configuration of an integrated wireless repeater supporting multiple frequency bands of the IF method.

In particular, FIG. 8 illustrates an example of a wireless repeater that supports signal relaying for two mobile communication methods and simultaneously supports signal relaying for one or more unidirectional broadcasts. However, the present invention is not necessarily limited to supporting only two mobile communication signal relays and one unidirectional broadcast signal relay.

Referring to FIG. 8, the wireless repeater of the present invention includes a broadband antenna 500 for transmitting and receiving mobile communication signals in a first frequency band and a broadband antenna 600 for transmitting and receiving mobile communication signals in a second frequency band. And a broadband antenna 516 for transmitting and receiving mobile communication signals in the first frequency band and a broadband antenna 616 for transmitting and receiving mobile communication signals in the second frequency band. In addition, the wireless repeater of the present invention includes antennas (particularly, broadcasting antennas) 800 and 807 which are in charge of transmitting / receiving wireless broadcast signals.

In addition, the wireless repeater of the present invention has a low noise amplifier (LNA) 502, a preamplifier 503, an IF module 504, and a sawtooth wave in a forward path (path from the system side to the terminal side) for mobile communication in the first frequency band. A filter 505, a mixer 506, a power amplifier (HPA) 507, and a low noise amplifier (LNA) in a reverse path (path from the terminal side to the system side) for mobile communication in the first frequency band. 509, a preamplifier 510, an IF module 511, a sawtooth filter 512, a mixer 513 and a power amplifier (HPA) 514. Also provided are duplexers (501,508) for separating received and transmitted signals of the first frequency band, and an automatic gain controller (AGC) 515 for adjusting the gain of the power amplifiers (507,514). .

In addition, the wireless repeater of the present invention has a low noise amplifier (LNA) 702, a preamplifier 703, an IF module 704, and a sawtooth wave in a forward path (path from the system side to the terminal side) for mobile communication in the second frequency band. A low noise amplifier (LNA) having a filter 705, a mixer 706, and a power amplifier (HPA) 707 in a reverse path (path from the terminal side to the system side) for mobile communication in the second frequency band. 709, a preamplifier 710, an IF module 711, a sawtooth filter 712, a mixer 713, and a power amplifier (HPA) 714. It also includes duplexers (701, 708) for separating received and transmitted signals of the second frequency band, and further includes an automatic gain controller (AGC) 715 for adjusting the gain of the power amplifiers (707, 714). do.

Referring to the operation of the forward path of the first frequency band according to the above configuration, the RF signal received through the wideband antenna 500 for transmission and reception in the first frequency band is separated only by the received frequency signal by the duplexer 501. The separated signal is amplified by the low noise amplifier 502 and the preamplifier 503.

The IF module 504 processes downlink the RF signal into an IF signal which is a baseband frequency.

The sawtooth filter 505 detects signals of a desired frequency band in the IF signal. Thereafter, the mixer 506 converts the IF signal into an RF signal, and the power amplifier 507 amplifies the converted RF signal and transmits it through another transmission / reception broadband antenna 516 of the first frequency band.

In the operation of the reverse path of the first frequency band, only the received frequency signal is separated by the duplexer 508 from the RF signal received through the wideband antenna 516 for transmission and reception in the first frequency band. The separated signal is amplified by the low noise amplifier 509 and the preamplifier 510.

The IF module 511 down-processes the RF signal into an IF signal which is a baseband frequency.

Sawtooth filter 512 detects signals of a desired frequency band in the IF signal. Thereafter, the mixer 513 converts the IF signal into an RF signal, and the power amplifier 514 amplifies the converted RF signal and transmits it through the wideband antenna 500 for transmitting and receiving the first frequency band.

Meanwhile, referring to the operation of the forward path of the second frequency band according to the above configuration, the RF signal received through the wideband antenna 700 for transmission and reception in the second frequency band is separated only the reception frequency signal by the duplexer 701. do. The separated signal is amplified by the low noise amplifier 702 and the preamplifier 703.

IF module 704 downlinks the RF signal to an IF signal which is a baseband frequency.

Sawtooth filter 705 detects signals of a desired frequency band in the IF signal. Then, the mixer 706 converts the IF signal into an RF signal, and the power amplifier 707 amplifies the converted RF signal and transmits it through another wideband antenna 716 for transmission and reception in the second frequency band.

In the operation of the reverse path of the second frequency band, the RF signal received through the wideband antenna 716 for transmission and reception in the second frequency band is separated only by the reception frequency signal by the duplexer 708. The separated signal is amplified by the low noise amplifier 709 and the preamplifier 710.

The IF module 711 downlinks the RF signal to an IF signal which is a baseband frequency.

Sawtooth filter 712 detects signals of a desired frequency band in the IF signal. Thereafter, the mixer 713 converts the IF signal into an RF signal, and the power amplifier 714 amplifies the converted RF signal and transmits it through the wideband antenna 700 for transmission and reception of the second frequency band.

On the other hand, when the signal relay of the unidirectional broadcast is described, the RF signal received through the broadcast receiving antenna 800 is amplified by the low noise amplifier 801 and amplified by the preamplifier 802.

Thereafter, the bandpass filter 804 filters the unidirectional broadcast signal.

The unidirectional broadcast signal filtered by the bandpass filter 804 is amplified by the power amplifier 806 and then transmitted through the broadcast transmitting antenna 807.

The integrated wireless repeater according to the sixth embodiment of the present invention has multiple bands of a plurality of mobile communication operators, that is, 2G CDMA (second generation code division multiple access), CDMA2000-1xEV-DO (CDMA2000-1x evolution-data optimized). Satellite digital multimedia broadcasting (DMB), terrestrial DMB, television, as well as frequency bands of many mobile services such as CDMA2000-1xEV-DV (CDMA2000-1x evolution-data and voice) and W-CDMA (wideband-CDMA). Signals are relayed using all frequency bands of a plurality of broadcast services such as broadcast and radio broadcast.

In other words, the integrated wireless repeater according to the sixth embodiment of the present invention accommodates various mobile communication schemes and multiple frequency bands of one or more unidirectional broadcasts.

This is because, as illustrated in FIG. 8, the integrated wireless repeater includes a signal relay path for one-way broadcasting including a band pass filter 804 for passing a frequency band corresponding to one-way wireless broadcasting.

FIG. 9 is a block diagram showing the configuration of an integrated wireless repeater according to a seventh embodiment of the present invention. The integrated wireless repeater supports a multiple frequency band of a hybrid method using a combination of an RF method and an IF method. It is shown.

In particular, the integrated wireless repeater according to the seventh embodiment of FIG. 9 shows an example of using an IF method in a forward path and using an RF method in a reverse path.

Referring to FIG. 9, the wireless repeater of the present invention has a low noise amplifier (LNA) 908, a preamplifier 907, a divider 906, and a plurality of bands in a reverse path (the path from the terminal side to the system side). Pass filter (BPFs) 903 ~ 905, combiner (902) and power amplifier (HPA) 901, an automatic gain controller for adjusting the gain of the power amplifier (901) ( AGC) 910.

Referring to the operation of the reverse path according to the above configuration, the RF signal received through one signal receiving broadband antenna 909 is amplified by the low noise amplifier 908 and also by the preamplifier 907.

Thereafter, the divider 906 is separated into three different mobile communication signals and sent to each band pass filter 903 to 905.

The first bandpass filter 903 filters the signal to the first frequency band, the second bandpass filter 904 filters the signal to the second frequency band, and the third bandpass filter 905 is the third frequency Filter the signal into bands. That is, each band pass filter 903 to 905 filters signals of different frequency bands.

Each frequency band signal filtered by each bandpass filter 903 to 905 is combined into one by the combiner 902. The combined signal is amplified by the power amplifier 901 and then transmitted through the wideband antenna 900 for transmission.

Meanwhile, the wireless repeater of the present invention is a broadband antenna 920 for receiving multiple frequency band mobile communication signals in a forward path (path from a system to a terminal) and a broadband antenna 980 for transmitting multiple frequency band mobile communication signals. ).

In addition, the wireless repeater of the present invention has a low noise amplifier (LNA) 940, a preamplifier 941, an IF module 942, and a sawtooth wave in a forward path (path from the system side to the terminal side) for mobile communication in the first frequency band. A filter 943, a mixer 944, a power amplifier (HPA) 945, and a low noise amplifier (LNA) in a forward path (path from system side to terminal side) for mobile communication in a second frequency band (950), preamp (951), IF module (952), sawtooth filter (953), mixer (Mixer) (954) and power amplifier (HPA) (955), the third frequency band of mobile communication Low noise amplifier (LNA) 960, preamplifier 961, IF module 962, sawtooth filter 963, mixer 964 and power on the forward path (path from system side to terminal side) An amplifier (HPA) 965.

In addition, the wireless repeater of the present invention includes duplexers (930, 970) for separating received signals and transmitted signals of three frequency bands, and the automatic gain controller (AGC) 910 used in the above-described RF scheme Adjust the gain of the power amplifiers (945, 955, 965) used in the IF method.

Referring to the operation of the forward path of the first frequency band according to the above configuration, the RF signal received through the receiving wideband antenna 920 of the multiple frequency band is separated only the reception frequency signal by the duplexer 930. The separated first frequency band signal is amplified by the low noise amplifier 940 and the preamplifier 941.

The IF module 942 downlinks the RF signal to an IF signal which is a baseband frequency.

Sawtooth filter 943 detects signals of a desired frequency band in the IF signal. Thereafter, the mixer 944 converts the IF signal into an RF signal, and the power amplifier 945 amplifies the converted RF signal and transmits it through the wideband antenna 980 for transmission in the first frequency band.

Next, the operation of the forward path of the second frequency band according to the above-described configuration, the RF signal received through the reception broadband antenna 920 of multiple frequency bands are separated only by the reception frequency signal by the duplexer 930. The separated second frequency band signal is amplified by the low noise amplifier 950 and the preamplifier 951.

The IF module 952 processes downlink the RF signal into an IF signal which is a baseband frequency.

Sawtooth filter 953 detects signals of a desired frequency band in the IF signal. Thereafter, the mixer 954 converts the IF signal into an RF signal, and the power amplifier 955 amplifies the converted RF signal and transmits the converted RF signal through the transmission broadband antenna 980 of the second frequency band.

Referring to the operation of the forward path of the third frequency band according to the above configuration, the RF signal received through the reception broadband antenna 920 of the multiple frequency band is separated only by the reception frequency signal by the duplexer 930. The separated third frequency band signal is amplified by the low noise amplifier 960 and the preamplifier 961.

The IF module 962 downlinks the RF signal to an IF signal which is a baseband frequency.

Sawtooth filter 963 detects signals of a desired frequency band in the IF signal. Thereafter, the mixer 964 converts the IF signal into an RF signal, and the power amplifier 965 amplifies the converted RF signal and transmits the same through the wideband antenna 980 for transmission in the third frequency band.

10 is a view showing an example of a service using an integrated wireless repeater of the present invention.

Referring to FIG. 1O, one broadband antenna is used in the forward path of one integrated wireless repeater, while in the reverse path, a plurality of broadband antennas are branched into a plurality of different service areas (eg, shaded from each other). Area).

Meanwhile, in FIG. 10, a divider / combiner is provided to branch antennas to different service areas.

The present invention has shown an example of the implementation of a wireless repeater supporting an RF scheme multiple frequency band or an IF repeater supporting a multiple frequency band as an integrated wireless repeater, and also a hybrid ( An embodiment of a hybrid type wireless repeater has been shown.

A wireless repeater supporting an RF scheme of multiple frequency bands receives an RF signal and simply amplifies and transmits an RF signal of a frequency band of each mobile communication service. Such an RF type integrated wireless repeater is easier when there is no inter-frequency propagation interference (interference) and sufficient isolation between frequencies is obtained.

A wireless repeater supporting multiple IF bands converts the received RF signal to IF, which is the baseband frequency using a low noise amplifier (LNA), and uses a band pass filter (BPF) to convert the desired frequency band from the IF signal. Detect signals. After that, it is converted into an RF signal and transmitted after amplification. Such an IF type integrated wireless repeater is easier when radio frequency interference or separation between frequencies is not sufficiently secured. In other words, if a filter using a sawtooth filter is performed in the IF band like the IF type integrated wireless repeater, better filtering characteristics can be realized, thereby eliminating radio wave interference and separation between frequencies.

Hybrid wireless repeater is a combination of RF integrated wireless repeater and IF integrated wireless repeater. In other words, in the hybrid wireless repeater, the RF band is implemented in a frequency band where radio wave interference or separation between frequencies is sufficiently secured, and the IF method is used in a frequency band where radio wave interference or separation between frequencies is not sufficiently secured. Implement More preferably, the hybrid wireless repeater is implemented in the IF method for the forward path because the radio signal of the forward path is likely to be difficult to secure radio frequency interference or separation between frequencies. On the other hand, since the radio signal of the reverse path only needs to transmit the terminal side signal of the shaded area to the system side, radio wave interference or separation between frequencies can be secured. Therefore, the reverse path is implemented by RF method.

On the other hand, using the integrated wireless repeater according to the present invention is a method of supporting the signal relay in the shadow area as follows.

-Divide the forward path transmission antenna and the reverse path reception antenna provided in one integrated wireless repeater into multiple shaded areas. For example, an integrated wireless repeater is installed on the first floor, and the first transmission antenna on the forward path and the first reception antenna on the reverse path are provided on the first floor. In the second floor, a second transmission antenna of the forward path and a second reception antenna of the reverse path branched from the integrated wireless repeater are installed.

One integrated wireless repeater converts the received RF signal to the baseband IF using a low noise amplifier (LNA) and detects signals of the desired frequency band from the IF signal using a bandpass filter (BPF). After converting the detected IF signal into an optical signal, it is branched into a plurality of cables and sent to RF stages installed in shadow areas separated from each other. The RF stage installed in each shaded area converts the received optical signal into an IF signal, and also converts the IF signal into an RF signal and sends it after amplification. For example, an integrated wireless repeater is installed on one floor, and RF stages are installed on each floor from the first floor to the tenth floor. In particular, the wireless repeater and the RF terminal of each layer is connected by a cable, each RF terminal is provided with an antenna for transmission and reception. The wireless repeater converts IF signals of multiple frequency bands into optical signals and transmits them to the corresponding RF stages through cables. The RF stages convert the received optical signal into an IF signal and then convert the IF signal into an RF signal. The RF signal is amplified and transmitted through an antenna for transmitting and receiving.

-Connect the integrated wireless repeaters in series to relay the signals. That is, when the forward antenna and the reverse antenna are divided into a plurality of antennas and installed in a shaded area separated from each other, when the transmission signal strength of a specific shaded region is weak, the antenna of the corresponding shaded region Install one more integrated wireless repeater at the front end.

As described above, the present invention supports all wireless communication signal relays as one integrated wireless repeater, so that each wireless repeater for each carrier is not required, thereby reducing system installation costs. In addition, although it was complicated to see by installing all the wireless repeaters for each carrier in the prior art, in the present design it is aesthetically good because it can relay the radio communication signals of all the communication providers with one wireless repeater.

In addition, since only one integrated wireless repeater can be used to relay all wireless communication signals to service shaded areas such as indoor (In-Building), it can provide the best quality service with minimum installation cost.

From the above description, those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the utility model claims.

Claims (12)

A first wideband antenna for receiving high frequency (RF) signals of multiple communication frequency bands; A duplexer for separating high frequency (RF) signals received through the first wideband antenna; A forward relay block for separating and amplifying the received high frequency (RF) signals for each communication frequency band; And a second wideband antenna for transmitting the amplified high frequency (RF) signals for each communication frequency band. The method of claim 1, The first wideband antenna receives the high frequency (RF) signals transmitted in a forward path from a system side to a terminal side, and the second wideband antenna transmits the amplified high frequency (RF) signals in the forward path. Wireless repeater. The method of claim 1, The forward relay block, A low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the first wideband antenna; A divider for dividing the output of the preamplifier for each communication frequency band; A plurality of band pass filters (BPFs) for filtering the separated signal for each communication frequency band into signals of different frequency bands; A combiner summing the outputs of the bandpass filters; A power amplifier (HPA) for amplifying the output of the combiner, And an automatic gain controller (AGC) for adjusting the gain of the power amplifier. The method of claim 1, The wireless repeater, Another second duplexer for separating high frequency (RF) signals of multiple communication frequency bands received through the second wideband antenna, and each of the high frequency (RF) signals received through the second wideband antenna And a backward relay block transmitted through the first wideband antenna after being amplified by a frequency band. The method of claim 4, wherein The reverse relay block, A low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the second wideband antenna; A divider for dividing the output of the preamplifier for each communication frequency band; A plurality of band pass filters (BPFs) for filtering the separated signal for each communication frequency band into signals of different frequency bands; A combiner summing the outputs of the bandpass filters; And a power amplifier (HPA) for amplifying the output of the combiner. The method of claim 1, The wireless repeater, A low noise amplifier (LNA) and a preamplifier for amplifying a high frequency signal of at least one unidirectional broadcast frequency band received through the first broadband antenna; A band pass filter (BPF) for filtering the output of the pro amplifier into a signal of the unidirectional broadcast frequency band; And a power amplifier (HPA) for amplifying the output of the bandpass filter. At least one first wideband antenna block for receiving high frequency (RF) signals of different frequency bands; A forward relay block for converting high frequency (RF) signals received through the first wideband antenna block to an intermediate frequency (IF) to perform filtering, and converting the filtered signal to a high frequency (RF) and amplifying the amplified signal; And a second broadband antenna block for transmitting high frequency (RF) signals for each communication frequency band output from the forward relay blocks. The method of claim 7, wherein The first broadband antenna block, A first broadband antenna for receiving a high frequency (RF) signal of a first frequency band transmitted in a forward path from a system side to a terminal side; A second wideband antenna for receiving a high frequency (RF) signal of a second frequency band transmitted through the forward path; And a third wideband antenna for receiving a high frequency (RF) signal of a third frequency band transmitted through the forward path. The method of claim 8, The forward relay blocks, A low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the first wideband antenna, an IF module for converting an output of the preamplifier into an intermediate frequency (IF) signal, and the IF module A sawtooth filter for filtering the output of the signal into an intermediate frequency (IF) band, a mixer for converting the output of the sawtooth filter into a high frequency (RF) signal, and a power amplifier (HPA) for amplifying the output of the mixer. A first forward relay block, A low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the second wideband antenna, an IF module for converting an output of the preamplifier to an intermediate frequency (IF) signal, and the IF module A sawtooth filter for filtering the output of the signal into an intermediate frequency (IF) band, a mixer for converting the output of the sawtooth filter into a high frequency (RF) signal, and a power amplifier (HPA) for amplifying the output of the mixer. A second forward relay block, A low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the second wideband antenna, an IF module for converting an output of the preamplifier to an intermediate frequency (IF) signal, and the IF module A sawtooth filter for filtering the output of the signal into an intermediate frequency (IF) band, a mixer for converting the output of the sawtooth filter into a high frequency (RF) signal, and a power amplifier (HPA) for amplifying the output of the mixer. A third forward relay block, And an automatic gain controller (AGC) for adjusting gains of the power amplifiers included in the first to third forward relay blocks. The method of claim 7, wherein The wireless repeater, Reverse relay to convert high frequency (RF) signals of multiple communication frequency bands received through the second wideband antenna block to an intermediate frequency (IF) to perform filtering, and convert the filtered signal to a high frequency (RF) to amplify The wireless repeater further comprises blocks. The method of claim 10, The reverse relay blocks, respectively, A low noise amplifier (LNA) and a preamplifier for amplifying the high frequency (RF) signals received through the second wideband antenna block, an IF module for converting the output of the preamplifier into an intermediate frequency (IF) signal, and the IF A sawtooth filter for filtering the output of the module to an intermediate frequency (IF) band, a mixer for converting the output of the sawtooth filter into a high frequency (RF) signal, and a power amplifier (HPA) for amplifying the output of the mixer. Wireless repeater comprising a plurality of forward relay block including. Performing filtering by converting high frequency (RF) signals of different frequency bands into an intermediate frequency (IF), converting the filtered signal into a high frequency (RF), and amplifying and transmitting the converted high frequency (RF) signal. Forward relay blocks; A radio repeater comprising a reverse relay block for transmitting after separating and amplifying high frequency (RF) signals of different frequency bands for each frequency band.