CN101969333B - Tower amplifier, base station system and signal amplifying method - Google Patents
Tower amplifier, base station system and signal amplifying method Download PDFInfo
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- CN101969333B CN101969333B CN 201010283379 CN201010283379A CN101969333B CN 101969333 B CN101969333 B CN 101969333B CN 201010283379 CN201010283379 CN 201010283379 CN 201010283379 A CN201010283379 A CN 201010283379A CN 101969333 B CN101969333 B CN 101969333B
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Abstract
The embodiment of the invention provides a signal amplifying method, a tower amplifier and a base station system. The signal amplifying method comprises the following steps: inputting uplink signals of at least two wavebands from an antenna by an antenna port; receiving the uplink signals of at least two wavebands by an antenna terminal receiving filter unit which comprises at least one antenna terminal receiving filter, and filtering the uplink signals of at least two wavebands; and inputting the filtered uplink signals of at least two wavebands to the amplifier for amplification. By adopting the tower amplifier, the base station system and the signal amplifying method, the cost can be reduced, the working current can be reduced, and the reliability can be improved.
Description
Technical field
The present invention relates to communication technical field, particularly the method for tower amplifier, base station system and signal amplification.
Background technology
Occur antenna and feeder line when building a station in the base station in the communication network and install when limited, adopt the scheme of antenna feeder altogether usually.System disposes tower amplifier (be called for short tower and put TMA, Tower MountedAmplifier) if desired, then needs to use the two waveband tower to put to satisfy system requirements.
It is that the tower of two wave bands is put simple combination and formed at present that the two waveband tower is put, as depicted in figs. 1 and 2, and the form of putting for common two waveband tower of the prior art.Wherein, among Fig. 1, two wave bands are Band A and Band B, antenna (ANT) port (port) output of putting from tower through wave band A emission filter (BandA TX filter) after the downstream signal of Band A is imported from base station (BTS) port (port) of tower amplifier, the upward signal of Band A is imported from ANT port, successively through the first wave band A receiving filter (Band A RX filter), low noise amplifier (LNA, Low Noise Amplifier) and behind the 2nd BandARX filter, exports from BTS port.Equally, antenna (ANT) port (port) output of putting from tower through wave band B emission filter (Band B TX filter) after the downstream signal of Band B is imported from base station (BTS) port (port) of tower amplifier, the upward signal of Band B is imported from ANT port, successively through the first wave band B receiving filter (Band B RX filter), low noise amplifier (LNA, Low Noise Amplifier) and behind the 2nd Band B RX filter, exports from BTS port.Wherein, the downstream signal of BandA and Band B closes the road at ANT port, and the upward signal of Band A and Band B closes the road at BTSport.Among Fig. 2, the upward signal that adopts the two-way balance amplifier to substitute the Band A of simple low noise amplifier LNA and Band B respectively amplifies.Wherein, bypass can be when tower amplifier power down or fault in the amplifier among Fig. 1 and Fig. 2, and the normal operation of assurance system improves system reliability.
The present inventor finds that the realization cost of existing two waveband tower amplifier is higher, and operating current is bigger, and reliability is lower.
Summary of the invention
The method that the embodiment of the invention provides tower amplifier, base station system and signal to amplify is used for the signal of at least two wave bands is amplified processing.
The embodiment of the invention provides a kind of tower amplifier, comprises antenna port, antenna end accept filter unit and at least one amplifier, wherein,
The antenna end unit that accepts filter, be used for receiving the upward signal that comprises at least two wave bands by antenna port, and the upward signal of at least two wave bands carried out exporting to after the filtering a amplifier at least one amplifier, wherein, the antenna end unit that accepts filter comprises at least one antenna end receiving filter;
An amplifier at least one amplifier is used for the upward signal through at least two wave bands of filtering of the unit output that accepts filter from antenna end is amplified.
The embodiment of the invention also provides a kind of base station system, comprises any one tower amplifier that antenna, base station and the embodiment of the invention provide, and wherein, tower amplifier is by antenna port and antenna communication, by base station port and base station communication.
The method that the embodiment of the invention also provides a kind of signal to amplify comprises:
By the upward signal of antenna port input from least two wave bands of antenna;
Receive the upward signal of at least two above-mentioned wave bands by the antenna end that comprises at least one the antenna end receiving filter unit that accepts filter, the upward signal of at least two above-mentioned wave bands is carried out filtering;
To amplify through amplifier of upward signal input of at least two wave bands of filtering.
The method that tower amplifier, base station system and the signal that adopts the embodiment of the invention to provide amplifies can reduce cost, and reduces operating current, improves reliability.
Description of drawings
The structural representation that Fig. 1 is put for two waveband tower in the prior art;
The structural representation that Fig. 2 is put for two waveband tower in the prior art;
The structural representation of a kind of tower amplifier of providing in the embodiment of the invention is provided Fig. 3;
The structural representation of a kind of tower amplifier of providing in another embodiment of the present invention is provided Fig. 4;
The structural representation of a kind of tower amplifier of providing in another embodiment of the present invention is provided Fig. 5;
Fig. 6 is the frequency range configuration schematic diagram that is total to antenna feeder in another embodiment of the present invention;
The structural representation of a kind of tower amplifier that Fig. 7 provides for one embodiment of the present of invention;
The structural representation of a kind of tower amplifier that Fig. 8 provides for one embodiment of the present of invention;
The structural representation of a kind of tower amplifier that Fig. 9 provides for an alternative embodiment of the invention;
The structural representation of a kind of tower amplifier that Figure 10 provides for an alternative embodiment of the invention;
The structural representation of a kind of base station system that Figure 11 provides for the embodiment of the invention;
The schematic flow sheet of the method that a kind of signal that Figure 12 provides for the embodiment of the invention amplifies.
Embodiment
The embodiment of the invention provides a kind of tower amplifier, is used for the signal of at least two wave bands is amplified.
The present inventor finds, if signal Band A, the Band B of at least two wave bands ... the wave band of Band X etc. can be covered by the service band scope of an amplifier, so in tower is put, can with Band A, Band B ... the signal of wave bands such as Band X closed the road before input amplifier, adopt the signal behind the involutory road of amplifier to amplify.
The embodiment of the invention provides a kind of tower amplifier, as shown in Figure 3, be used for the upward signal of the individual wave band of n (n 〉=2) is amplified, can comprise antenna port, the antenna end that comprises at least one the antenna end receiving filter unit 301 that accepts filter, an amplifier 302 can also comprise that the base station termination of at least one base station termination receipts filter is received filter unit 303 and base station port
Wherein, upward signal is to receive from antenna port, mails to the signal of base station port;
The antenna end unit 301 that accepts filter is used for the road signal that closes from the upward signal of n wave band of antenna port input is carried out filtering, the upward signal of n wave band of acquisition close the road signal;
The base station termination is received filter unit 303, and the road signal that closes of the upward signal of n wave band after the amplification that is used for amplifier 302 is obtained carries out filtering, obtains after the amplification of n wave band process upward signal close the road signal;
Base station port is used for n the wave band that base station termination receipts filter unit obtains exported to the base station through the road signal that closes of the upward signal after amplifying;
Wherein, the wavelength band of n wave band is in the service band scope of an amplifier 302.
In one embodiment of the invention, the antenna end unit 301 that accepts filter can comprise an antenna end receiving filter, be used for the road signal that closes from the upward signal of n wave band of antenna port input is carried out filtering, the upward signal of n wave band of acquisition close the road signal; Wherein, total wavelength band of n wave band is in the service band scope of an antenna end receiving filter.
In all embodiment of the present invention, total wavelength band of n wave band refers to the wavelength band between the peak frequency and minimum frequency in this n wave band.
In another embodiment of the present invention, the base station termination is received filter unit 303 can comprise a base station termination receipts filter, the road signal that closes of the upward signal of n wave band after the amplification that is used for amplifier 302 is obtained carries out filtering, and what obtains that n wave band pass through upward signal after the amplification closes the road signal; Total wavelength band of n wave band is received in the service band scope of filter a base station termination.
In another embodiment of the present invention, as shown in Figure 4, antenna end accept filter unit 301 can comprise n respectively with n antenna end receiving filter 3011 and the antenna end mixer 3012 that wave band is corresponding,
N respectively with n the antenna end receiving filter 3011 that wave band is corresponding, be respectively applied to the road signal that closes of the upward signal of n wave band importing from antenna port is carried out filtering, obtain the upward signal of each wave band;
Wherein, n=2 or 3 situation are comparatively commonly used in practice.
Be understandable that the antenna end unit 301 that accepts filter also can comprise x antenna end receiving filter 3011, be used for the road signal that closes of the upward signal of n wave band is carried out filtering, the upward signal of n wave band of acquisition.Wherein, in x the antenna end receiving filter, can carry out flexible allocation according to the service band scope of each antenna end receiving filter and the wavelength band of n wave band, such as, part antenna end receiving filter is used for the upward signal of 1 wave band is carried out filtering, part antenna end receiving filter, be used for the road signal that closes of the upward signal of 2 wave bands is carried out filtering ....
Such as, be that 2, n is under 3 the situation at x, can carry out filtering to the upward signal of a wave band for an antenna end receiving filter, another antenna end receiving filter carries out filtering to the upward signal of two wave bands.
In another embodiment of the present invention, as shown in Figure 4, the base station termination receive filter unit 303 comprise n respectively with n base station termination receipts filter 3031 and the base station end mixer 3032 that wave band is corresponding,
N the respectively base station termination corresponding with n wave band receives filter 3031, is respectively applied to the road signal that closes of the upward signal of n wave band after the amplification of amplifier acquisition is carried out filtering, obtains the upward signal of each wave band respectively;
Base station end mixer 3032, be used for to n respectively the base station termination corresponding with n wave band upward signal of receiving each wave band that filter 3031 obtains close the road, obtains after the amplification of n wave band process upward signal close the road signal.
Be understandable that the base station termination is received filter 303 can comprise that also x base station termination receive filter, be used for the road signal that closes of the upward signal of n wave band is carried out filtering, the upward signal of n wave band of acquisition.Wherein, x base station termination received in the filter, can carry out flexible allocation according to the service band scope of base station termination receipts filter and the wavelength band of n wave band, such as, part base station termination is received filter, is used for the upward signal of 1 wave band is carried out filtering, and part base station termination is received filter, be used for the road signal that closes of the upward signal of 2 wave bands is carried out filtering ....
In another embodiment of the present invention, as shown in Figure 5, tower amplifier can also comprise emission filter unit 305, this emission filter unit comprise n respectively with n the emission filter that wave band is corresponding, be used for respectively the downstream signal of n wave band is carried out filtering, obtain the downstream signal of each wave band respectively.
In another embodiment of the present invention, tower amplifier can comprise m amplifier, and m＜n like this, can amplify n upward signal by m amplifier.Wherein, can distribute the upward signal of the required amplification of each amplifier according to the service band scope of each amplifier and the wavelength band of each upward signal.
Be that 3, m is that this tower amplifier comprises first amplifier and second amplifier under 2 the situation such as, n, wherein, first amplifier is used for the two-way upward signal is amplified, and second amplifier is used for amplifying going signal on the way.
In all embodiment of the present invention, downstream signal is to receive from base station port, mails to the signal of antenna port.
Be understandable that above embodiment of the present invention can make up flexibly according to actual conditions.
Based on any one embodiment that above combination obtains, amplifier can be low noise amplifier, can be balanced Low Noise Amplifier, can also be the wilkinson combiner-divider.Be understandable that the specific implementation form of amplifier can limit in the present invention, in the prior art or in the various amplifiers that can realize the low noise enlarging function that occur later on all can be included in.
Any one embodiment based on above combination acquisition, the included antenna end unit that accepts filter in the tower amplifier, amplifier and base station termination are received filter unit and can be used for main collection signal is amplified, tower amplifier can also comprise diversity antenna termination receipts filter unit, diversity amplifier and diversity base station termination are received filter unit, are used for diversity signal is amplified.Be understandable that, also can be, the included antenna end unit that accepts filter in the tower amplifier, amplifier and base station termination are received filter unit and can be used for diversity signal is amplified, tower amplifier can also comprise the main collection antenna end unit that accepts filter, a main collection amplifier and main collection base station termination are received filter unit, are used for main collection signal is amplified.
Mentioned filter can use in low pass filter, band stop filter, the band pass filter any one in the embodiment of the invention, and perhaps other filters that adhere to specification that can finish filter function are realized.
Be 2 at n, when namely tower amplifier was the two waveband tower amplifier, adaptable scene can comprise following three kinds, but is not limited to this.
(1) 850MHz and 900MHz two systems are total to antenna feeder
Frequency range is divided as follows:
850MHz?band：RX：824MHz-849MHz；TX：869MHz-894MHz
900MHz?band：RX：880MHz-915MHz；TX：925MHz-960MHz
(2) 1800MHz and 1900MHz are total to antenna feeder
1800MHz?band：RX：1710MHz-1785MHz；TX：1805MHz-1880MHz
1900MHz?band：RX：1850MHz-1910MHz；TX：1930MHz-1990MHz
(3) 1800MHz and 2100MHz are total to antenna feeder
1800MHz?band：RX：1710MHz-1785MHz；TX：1805MHz-1880MHz
2100MHz?band：RX：1920MHz-1980MHz；TX：2110MHz-2170MHz
When the frequency spectrum configuration of the 850MHz frequency range of antenna feeder altogether and 900MHz frequency range and altogether the frequency spectrum of the 1900MHz frequency range of antenna feeder and 2100MHz frequency range be configured to when shown in Figure 6, be that the receiving wave range of wave band A and wave band B is in the same side, the emission band of wave band A and wave band B is in the same side, and accept filter unit and base station termination of the antenna end that this two waveband tower is put received filter unit and all can be used a receiving filter to realize.
The embodiment of the invention provides a kind of tower amplifier 700, as shown in Figure 7, comprises antenna port 701, antenna end accept filter unit 702 and at least one amplifier, wherein,
The antenna end unit 702 that accepts filter, be used for receiving the upward signal that comprises at least two wave bands by antenna port, and the upward signal of at least two wave bands carried out exporting to after the filtering a amplifier at least one amplifier, wherein, the antenna end unit 702 that accepts filter comprises at least one antenna end receiving filter;
An amplifier 703 at least one amplifier is used for the upward signal through at least two wave bands of filtering of the unit output that accepts filter from antenna end is amplified.
In one embodiment of the invention, as shown in Figure 8, on the basis of Fig. 7, at least one antenna end receiving filter comprises the first antenna end receiving filter 7021 and the second antenna end receiving filter 7022, the antenna end unit that accepts filter also comprises first mixer 7023, and the upward signal of at least two wave bands comprises the upward signal of first wave band and the upward signal of second wave band, and an amplifier at least one amplifier is first amplifier 7031, wherein
The first antenna end receiving filter 7021 is used for the upward signal of first wave band is carried out filtering;
The second antenna end receiving filter 7022 is used for the upward signal of second wave band is carried out filtering;
In another embodiment of the present invention, as shown in Figure 9, on the basis of Fig. 7, at least one antenna end receiving filter comprises third antenna termination receipts filter 7024, the upward signal of at least two wave bands comprises the upward signal of triband and the upward signal of the 4th wave band, an amplifier at least one amplifier is second amplifier 7032, wherein
The third antenna termination is received filter 7024, is used for the upward signal of triband and the upward signal of the 4th wave band are carried out filtering, and the upward signal of filtered triband and the upward signal of the 4th wave band are exported to second amplifier 7032.
In another embodiment of the present invention, as shown in figure 10, on the basis of Fig. 7, at least one antenna end receiving filter comprises the 4th antenna end receiving filter 7025, the 5th antenna end receiving filter 7026 and the 6th antenna end receiving filter 7027, the antenna end unit that accepts filter also comprises second mixer 7028, the upward signal of at least two wave bands comprises the upward signal of the 5th wave band, the upward signal of the upward signal of the 6th wave band and the 7th wave band, an amplifier at least one amplifier is the 3rd amplifier 7033, tower amplifier also comprises the 4th amplifier 704, wherein
The 4th antenna end receiving filter 7025 is used for the upward signal of the 5th wave band is carried out filtering, and the upward signal of filtered the 5th wave band is exported to the 4th amplifier 704;
The 5th antenna end receiving filter 7026 is used for the upward signal of the 6th wave band is carried out filtering;
The 6th antenna end receiving filter 7027 is used for the upward signal of the 7th wave band is carried out filtering;
In another embodiment of the present invention, this tower amplifier 700 can also comprise base station termination receipts filter unit and base station port, wherein,
The base station termination is received filter unit, is used for the upward signal through at least two wave bands amplifying of amplifier output is carried out filtering, and the upward signal of filtered at least two wave bands is exported to the base station by base station port.
In one embodiment of the invention, this tower amplifier 700 can also comprise the emission filter unit, be used for receiving from base station port the downstream signal of at least one wave band, after the downstream signal of at least one wave band carried out filtering, export to antenna by antenna port, the emission filter unit comprises at least one emission filter.
In one embodiment of the invention, the antenna end unit that accepts filter is the main collection antenna end unit that accepts filter, and at least one amplifier is main collection amplifier, and it is that main collection base station termination is received filter unit that the base station termination is received filter unit,
Accept filter unit, at least one amplifier and base station termination of antenna end received filter unit and is used for main collection signal is amplified,
Any one tower amplifier that provides in the embodiment of the invention is provided, can reduces cost, reduce operating current, improve reliability.
The embodiment of the invention also provides a kind of base station system, as shown in figure 11, comprise any one tower amplifier 700 that provides in antenna 1101, base station 1102 and the embodiment of the invention, wherein, tower amplifier is by antenna port and antenna communication, by base station port and base station communication.
The method that the embodiment of the invention also provides a kind of signal to amplify as shown in figure 12, comprising:
S1201, by the antenna port input upward signal from least two wave bands of antenna;
S1202, receive the upward signal of at least two wave bands by the antenna end that comprises at least one the antenna end receiving filter unit that accepts filter, the upward signal of at least two wave bands is carried out filtering;
S1203, will amplify through amplifier of upward signal input of at least two wave bands of filtering.
In one embodiment of the invention, at least two wave bands comprise first wave band and second wave band, at least one antenna end receiving filter comprises the first antenna end receiving filter and the second antenna end receiving filter, and the antenna end unit that accepts filter also comprises first mixer;
Receive the upward signal of at least two wave bands by the antenna end that comprises at least one the antenna end receiving filter unit that accepts filter, the upward signal of at least two wave bands carried out filtering comprise:
Receive the upward signal of first wave band by the first antenna end receiving filter, and the upward signal of first wave band carried out filtering,
Receive the upward signal of second wave band by the second antenna end receiving filter, and the upward signal of second wave band carried out filtering,
To close the road through the upward signal of first wave band of filtering with through the upward signal of second wave band of filtering by first mixer;
To amplify through amplifier of upward signal input of at least two wave bands of filtering and comprise:
To close the upward signal of first wave band behind the road and amplifier of upward signal input of second wave band amplifies through filtering.
In another embodiment of the present invention, at least one antenna end receiving filter comprises third antenna termination receipts filter, and the upward signal of at least two wave bands comprises the upward signal of triband and the upward signal of the 4th wave band;
Receive the upward signal of at least two wave bands by the antenna end that comprises at least one the antenna end receiving filter unit that accepts filter, the upward signal of at least two wave bands carried out filtering comprise:
Receive filter by the third antenna termination and receive the upward signal of triband and the upward signal of the 4th wave band, and the upward signal of triband and the upward signal of the 4th wave band are carried out filtering.
In the method that the signal that the embodiment of the invention provides amplifies, this method also comprises:
The unit that will accept filter through the upward signal input base station end antenna of at least two wave bands amplifying carries out filtering, will export to the base station by base station port through the accept filter upward signal of at least two wave bands of unit filtering of base station end antenna.
The method that any one signal that adopting provides in the embodiment of the invention amplifies can reduce cost, and reduces operating current, improves reliability.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforementioned program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
One of ordinary skill in the art will appreciate that: the device in the embodiment of the invention or the title of module can change with the difference of technology evolution or application scenarios, but this does not influence the realization of the embodiment of the invention, also should fall within the scope of the invention; Device in the embodiment of the invention or module are the divisions of carrying out according to function, can merge or cut apart physically.
Embodiment numbering in the present embodiment only is used for making description more clear, does not represent the quality of scheme.
More than disclosed only be several specific embodiment of the present invention, obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (7)
1. a tower amplifier is characterized in that, comprises antenna port, antenna end accept filter unit and at least one amplifier, wherein,
The described antenna end unit that accepts filter, be used for receiving the upward signal that comprises at least two wave bands by described antenna port, and the upward signal of described at least two wave bands carried out exporting to after the filtering a amplifier in described at least one amplifier, wherein, the described antenna end unit that accepts filter comprises at least one antenna end receiving filter;
An amplifier in described at least one amplifier is used for the upward signal through at least two wave bands of filtering of the unit output that accepts filter from described antenna end is amplified;
Described at least one antenna end receiving filter comprises the 4th antenna end receiving filter, the 5th antenna end receiving filter and the 6th antenna end receiving filter, the described antenna end unit that accepts filter also comprises second mixer, the upward signal of described at least two wave bands comprises the upward signal of the 5th wave band, the upward signal of the upward signal of the 6th wave band and the 7th wave band, an amplifier in described at least one amplifier is the 3rd amplifier, described tower amplifier also comprises the 4th amplifier, wherein
Described the 4th antenna end receiving filter is used for the upward signal of described the 5th wave band is carried out filtering, and the upward signal of filtered the 5th wave band is exported to described the 4th amplifier;
Described the 5th antenna end receiving filter is used for the upward signal of described the 6th wave band is carried out filtering;
Described the 6th antenna end receiving filter is used for the upward signal of described the 7th wave band is carried out filtering;
Described second mixer, be used for the upward signal of filtered the 6th wave band of described the 5th antenna end receiving filter and the upward signal of filtered the 7th wave band of described the 6th antenna end filter are closed the road, and the upward signal that will close behind the road is exported to described the 3rd amplifier.
2. tower amplifier as claimed in claim 1 is characterized in that, also comprises base station termination receipts filter unit and base station port, wherein,
Described base station termination is received filter unit, is used for the upward signal through at least two wave bands amplifying of described amplifier output is carried out filtering, and the upward signal of filtered at least two wave bands is exported to the base station by base station port.
3. tower amplifier as claimed in claim 2, it is characterized in that, also comprise the emission filter unit, be used for receiving from described base station port the downstream signal of at least one wave band, after the downstream signal of described at least one wave band carried out filtering, export to antenna by described antenna port, described emission filter unit comprises at least one emission filter.
4. tower amplifier as claimed in claim 2, it is characterized in that the described antenna end unit that accepts filter is the main collection antenna end unit that accepts filter, described at least one amplifier is main collection amplifier, it is that main collection base station termination is received filter unit that described base station termination is received filter unit
Accept filter unit, described at least one amplifier and described base station termination of described antenna end received filter unit and is used for main collection signal is amplified,
Described tower amplifier also comprises diversity antenna termination receipts filter unit, and diversity amplifier and diversity base station termination are received filter unit, are used for diversity signal is amplified.
5. base station system comprises antenna, base station and as any described tower amplifier of claim 1 to 4, described tower amplifier is by described antenna port and described antenna communication, by base station port and described base station communication.
6. the method that signal amplifies is characterized in that, comprising:
By the upward signal of antenna port input from least two wave bands of antenna;
Receive the upward signal of described at least two wave bands by the antenna end that comprises at least one the antenna end receiving filter unit that accepts filter, the upward signal of described at least two wave bands is carried out filtering;
To amplify through the amplifier that the upward signal of described at least two wave bands of filtering is imported at least one amplifier;
Described at least one antenna end receiving filter comprises the 4th antenna end receiving filter, the 5th antenna end receiving filter and the 6th antenna end receiving filter, the described antenna end unit that accepts filter also comprises second mixer, the upward signal of described at least two wave bands comprises the upward signal of the 5th wave band, the upward signal of the upward signal of the 6th wave band and the 7th wave band, an amplifier in described at least one amplifier is the 3rd amplifier, described at least one amplifier also comprises the 4th amplifier, wherein
Described the 4th antenna end receiving filter is used for the upward signal of described the 5th wave band is carried out filtering, and the upward signal of filtered the 5th wave band is exported to described the 4th amplifier;
Described the 5th antenna end receiving filter is used for the upward signal of described the 6th wave band is carried out filtering;
Described the 6th antenna end receiving filter is used for the upward signal of described the 7th wave band is carried out filtering;
Described second mixer, be used for the upward signal of filtered the 6th wave band of described the 5th antenna end receiving filter and the upward signal of filtered the 7th wave band of described the 6th antenna end filter are closed the road, and the upward signal that will close behind the road is exported to described the 3rd amplifier.
7. the method for signal amplification as claimed in claim 6 is characterized in that, also comprises:
The unit that will accept filter through the upward signal input base station end antenna of at least two wave bands amplifying carries out filtering, will export to the base station by base station port through the accept filter upward signal of at least two wave bands of unit filtering of base station end antenna.
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| CN 201010283379 CN101969333B (en) | 2010-09-15 | 2010-09-15 | Tower amplifier, base station system and signal amplifying method |
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| CN 201010283379 CN101969333B (en) | 2010-09-15 | 2010-09-15 | Tower amplifier, base station system and signal amplifying method |
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| CN106411385B (en) | 2016-08-29 | 2020-01-10 | 西安华为技术有限公司 | Tower top amplifier |
| CN107888203A (en) * | 2016-09-29 | 2018-04-06 | 西安华为技术有限公司 | For the TMA of combining RRU signals, method and steel tower website |
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| CN101777879A (en) * | 2010-01-15 | 2010-07-14 | 福建三元达通讯股份有限公司 | Bypass control method for two-path bidirectional tower amplifier |
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2010
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|---|---|---|---|---|
| CN1299194A (en) * | 1999-11-02 | 2001-06-13 | 安德鲁公司 | Method and equipment for transmitting and receiving radio frequency signals from pager |
| US20100045402A1 (en) * | 2007-01-17 | 2010-02-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Apparatuses and a method for controlling antenna systems in a telecommunications system |
| US20090176470A1 (en) * | 2008-01-08 | 2009-07-09 | Karakis John G | Base station antenna interface system for antenna cable reduction in dual band deployments |
| CN101777879A (en) * | 2010-01-15 | 2010-07-14 | 福建三元达通讯股份有限公司 | Bypass control method for two-path bidirectional tower amplifier |
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