CN206237383U - A kind of emitter for micro-base station - Google Patents
A kind of emitter for micro-base station Download PDFInfo
- Publication number
- CN206237383U CN206237383U CN201621395244.5U CN201621395244U CN206237383U CN 206237383 U CN206237383 U CN 206237383U CN 201621395244 U CN201621395244 U CN 201621395244U CN 206237383 U CN206237383 U CN 206237383U
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- China
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- circuit
- signal
- attenuator
- filter
- force ratio
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- Expired - Fee Related
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- Mobile Radio Communication Systems (AREA)
Abstract
The utility model discloses a kind of emitter for micro-base station, its technical characteristics is：Including signal input part and signal output part, the signal input part connects hard peak-to-average force ratio reduction device and delay circuit respectively, the hard peak-to-average force ratio reduction device, wave filter and attenuator are sequentially connected, and the delay circuit connects the attenuator, and the attenuator connects signal output part output signal.The utility model is combined more preferable to the effect of peak-to-average force ratio reduction by anti-spilled circuit and inverse filter, solving the maximum probability of prior art presence makes signal peak-to-average ratio not drop the technical problem of anti-increase, simultaneously, the relatively low effect of peak-to-average force ratio can be just reached only with one-level forward-direction filter and one-level inverse filter, and then inexpensive power amplifier can be connected, cost is reduced, the scene of micro-base station is can be widely used for.
Description
Technical field
The utility model belongs to wireless communication technology field, especially a kind of emitter for micro-base station.
Background technology
The characteristics of third generation and forth generation wireless communication technology is that the peak-to-average force ratio of transmitter signal is higher, the work(of emitter
Rate amplifier will possess preferably linear and conversion efficiency higher, so as to the cost of power amplifier can be greatly improved.
At present, the technology for reducing emitter peak-to-average force ratio is mainly by improving power amplifier conversion efficiency with linear come real
Existing.The technology reduces peak-to-average force ratio typically by the way of lopper and wave filter are combined, but realizes technology above-mentioned
In, increase on the contrary so that making signal peak-to-average ratio not drop because wave filter has very maximum probability.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of emitter for micro-base station, solution
The maximum probability that certainly prior art is present makes signal peak-to-average ratio not drop the technical problem of anti-increase.
The utility model solves its technical problem and takes following technical scheme to realize：
A kind of emitter for micro-base station, including signal input part and signal output part, the signal input part difference
Hard peak-to-average force ratio reduction device and delay circuit are connected, the hard peak-to-average force ratio reduction device, wave filter and attenuator are sequentially connected, described to prolong
When circuit connect the attenuator, the attenuator connects signal output part output signal.
The hard peak-to-average force ratio reduction device includes baseband signal mod circuit, threshold value decision circuitry and decay pulses generation electricity
Road, the baseband signal mod circuit is sequentially connected with threshold value decision circuitry, decay pulse-generating circuit；The baseband signal
Mod circuit connects signal input part, and the decay pulse-generating circuit connects wave filter.
The wave filter includes pre-computation circuit, forward-direction filter, inverse filter, anti-spilled circuit, the pre-computation
Circuit is connected with the input of forward-direction filter, the output end of inverse filter, the anti-spilled circuit and forward-direction filter
Output end, the input of inverse filter are connected；The input of the pre-computation circuit connects hard peak-to-average force ratio reduction device, described anti-
The output end connection attenuator of overflow circuit, and anti-spilled circuit output end also exports electric to pre-computation by inverse filter
Road constitutes backfeed loop.
Digital analog converter is also associated between the attenuator and signal output part, the digital analog converter will decline
The data signal for subtracting device output is converted to analog signal and exports to signal output part.
Advantage of the present utility model and good effect are：
The utility model combines the effect reduced to peak-to-average force ratio more preferably by anti-spilled circuit and inverse filter, solves existing
Maximum probability with the presence of technology makes signal peak-to-average ratio not drop the technical problem of anti-increase, meanwhile, only with before one-level to filtering
Device and one-level inverse filter can just reach the relatively low effect of peak-to-average force ratio, and then can connect inexpensive power amplifier, reduce
Cost, can be widely used for the scene of micro-base station.
Brief description of the drawings
Fig. 1 is integrated circuit block diagram of the present utility model；
Fig. 2 is detailed circuit block diagram of the present utility model.
Specific embodiment
The utility model embodiment is further described below in conjunction with accompanying drawing：
A kind of emitter for micro-base station, as shown in figure 1, including hard peak-to-average force ratio reduction device 10, wave filter 20, attenuator
30 and delay circuit 40.The hard peak-to-average force ratio reduction device 10, wave filter 20 and attenuator 30 are sequentially connected, the hard peak-to-average force ratio drop
Low device 10 connects signal input part, and the connection signal output part of the attenuator 30 carries out signal output, and the signal input part is also
It is connected with the input of delay circuit 40, the output end of the delay circuit 40 connects the attenuator 30.Through the overloading of Base-Band Processing
Original intermediate-freuqncy signal (baseband signal) after ripple signal merges is divided into two-way into different units by signal input part, all the way
Signal sequentially enters hard peak-to-average force ratio reduction device 10, wave filter 20 and attenuator 30, and another road signal is by straight after delay circuit 40
Tap into attenuator 30, attenuator 30 carries out signal output after processing two paths of signals.
Original intermediate-freuqncy signal can be transformed into decay pulse by the hard peak-to-average force ratio reduction device 10.As shown in Fig. 2 hard peak is equal
Include baseband signal mod circuit 11, threshold value decision circuitry 12 and decay pulse-generating circuit 13, the base than reducing device 10
Band signal mod circuit 11 is sequentially connected with threshold value decision circuitry 12, decay pulse-generating circuit 13；The signal input part
Baseband signal be input into the baseband signal mod circuit 11 of the hard peak-to-average force ratio reduction device 10, and dropped by the hard peak-to-average force ratio
The decay pulse-generating circuit 13 of low device 10 is exported to the wave filter 20.
The wave filter 20 includes pre-computation circuit 21, forward-direction filter 22, inverse filter 24 and anti-spilled circuit 23,
The pre-computation circuit 21 is connected with the input of forward-direction filter 22, the output end of inverse filter 24, the anti-spilled electricity
Road 23 is connected with the output end of forward-direction filter 22, the input of inverse filter 24；The hard peak-to-average force ratio reduction device 10 is input into
To the pre-computation circuit 21 of the wave filter 20, and exported to the attenuator 30 through forward-direction filter 22, anti-spilled circuit 23；
The part signal of anti-spilled circuit 23 is exported to the pre-computation circuit 21 by the inverse filter 24, and composition feeds back to
Road.
In order to emitter has analog signal output function, number is connected between the attenuator 30 and signal output part
Word analog converter 50, the data signal of the output of the attenuator 30 exports analog signal by the digital analog converter 50
To the signal output part.
Operation principle of the present utility model is：Original intermediate-freuqncy signal into hard peak-to-average force ratio reduction device 10 will pass sequentially through base
Band signal mod circuit 11, threshold value decision circuitry 12 and decay pulse-generating circuit 13, produce in hard peak-to-average force ratio reduction device 10
Wave filter 20 is entered back into after raw decay pulse.Into wave filter 20 decay pulse in pre-computation circuit 21 same inverse filter
24 output feedback signals carry out subtracting computing, so as to obtain entering the pretreatment decay pulse of forward-direction filter 22.The pretreatment declines
Anti-spilled circuit 23 is entered into after subtracting pulse and having carried out filtering process in forward-direction filter 22.Exported by anti-spilled circuit 23
Decay pulse be divided into two-way, attenuator 30 is directly inputted to all the way, another road is filtered in then feeding back to inverse filter 24
Ripple treatment.The decay pulse and the original intermediate-freuqncy signal that delay process is carried out by delay circuit 40 for entering into attenuator 30 are carried out
Multiplying, finally obtains required overall output signal.
Peak-to-average force ratio reduction device 10 in the utility model, wave filter 20, attenuator 30, delay circuit 40, digital simulation turn
It is parallel operation 50, baseband signal mod circuit 11, threshold value decision circuitry 12, decay pulse-generating circuit 13, pre-computation circuit 21, preceding
Known hardware circuit or hardware module are to wave filter 22, inverse filter 24 and anti-spilled circuit 23 etc. and from city's field energy
Enough buy, the utility model protection and creation part is the annexation of above-mentioned hardware circuit and hardware module, and non-software
Innovation.
It is emphasized that embodiment described in the utility model is illustrative, rather than limited, therefore this reality
It is every new according to this practicality by those skilled in the art with the new embodiment including being not limited to described in specific embodiment
The other embodiment that the technical scheme of type draws, also belongs to the scope of the utility model protection..
Claims (4)
1. a kind of emitter for micro-base station, including signal input part and signal output part, it is characterised in that：The signal is defeated
Enter end and connect hard peak-to-average force ratio reduction device and delay circuit respectively, the hard peak-to-average force ratio reduction device, wave filter and attenuator connect successively
Connect, the delay circuit connects the attenuator, the attenuator connects signal output part output signal.
2. a kind of emitter for micro-base station according to claim 1, it is characterised in that：The hard peak-to-average force ratio reduction device
Including baseband signal mod circuit, threshold value decision circuitry and decay pulse-generating circuit, the baseband signal mod circuit with
Threshold value decision circuitry, decay pulse-generating circuit are sequentially connected；The baseband signal mod circuit connects signal input part, institute
State decay pulse-generating circuit connection wave filter.
3. a kind of emitter for micro-base station according to claim 1, it is characterised in that：The wave filter includes pre- fortune
Calculate circuit, forward-direction filter, inverse filter, anti-spilled circuit, it is the input of the pre-computation circuit and forward-direction filter, anti-
It is connected to the output end of wave filter, the anti-spilled circuit and the output end of forward-direction filter, the input phase of inverse filter
Even；The input of the pre-computation circuit connects hard peak-to-average force ratio reduction device, and the output end of the anti-spilled circuit connects attenuator,
And the output end of anti-spilled circuit is also exported to pre-computation circuit by inverse filter and constitutes backfeed loop.
4. a kind of emitter for micro-base station according to any one of claims 1 to 3, it is characterised in that：The decay
Digital analog converter is also associated between device and signal output part, the numeral letter that the digital analog converter exports attenuator
Number be converted to analog signal and export to signal output part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395244.5U CN206237383U (en) | 2016-12-19 | 2016-12-19 | A kind of emitter for micro-base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395244.5U CN206237383U (en) | 2016-12-19 | 2016-12-19 | A kind of emitter for micro-base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206237383U true CN206237383U (en) | 2017-06-09 |
Family
ID=58992245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621395244.5U Expired - Fee Related CN206237383U (en) | 2016-12-19 | 2016-12-19 | A kind of emitter for micro-base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206237383U (en) |
-
2016
- 2016-12-19 CN CN201621395244.5U patent/CN206237383U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170609 Termination date: 20201219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |