CN206807792U - The output control device of relay station - Google Patents
The output control device of relay station Download PDFInfo
- Publication number
- CN206807792U CN206807792U CN201720602687.5U CN201720602687U CN206807792U CN 206807792 U CN206807792 U CN 206807792U CN 201720602687 U CN201720602687 U CN 201720602687U CN 206807792 U CN206807792 U CN 206807792U
- Authority
- CN
- China
- Prior art keywords
- attenuator
- relay station
- noise amplifier
- low
- fpga
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The utility model provides a kind of output control device of relay station, including radio circuit, analog-to-digital conversion module, FPGA and D/A converter module, the radio circuit includes low-noise amplifier and attenuator, the low-noise amplifier, attenuator, analog-to-digital conversion module, FPGA, D/A converter module are sequentially connected, the input of the low-noise amplifier connection attenuator, analog-to-digital conversion module connects the output end of attenuator, D/A converter module is also connected with the controller of attenuator, and the low-noise amplifier, which is used to communicate with relay station, to be connected.The signal that relay station is sent is through low-noise amplifier input radio frequency circuit, then transmits to D/A converter module and carry out digital-to-analogue conversion, and obtained data signal is inputted to FPGA.Because FPGA response time is short, attenuator can quickly be controlled, so as to realize that the signal power sent to relay station carries out quick regulation.
Description
Technical field
It the utility model is related to mobile communication radio frequency arts, more particularly to a kind of output control device of relay station.
Background technology
With the development of mobile communication radio-frequency technique, the application of mobile communication is also increasingly extensive.In order to expand communication overlay
Face, dead zone-eliminating and the hardware resource for effectively utilizing communication network, relay station (repeater) are preferred schemes.
Repeater is mainly used in the excessively weak area of base station signal, is used as relay station, amplifies base station signal by repeater, then
Farther wider array of area is transmitted to, expands network coverage, relay station is the bilateral amplifier of a transmitted in both directions, is all the way
Receive the amplified transmitting of base station signal and be transmitted to mobile station, be that the amplified transmitting of receiving mobile signal is transmitted to base station all the way.
All it is to control RF power amplification pipe to carry out power adjusting by processor at present, in downlink, relay station, which receives, to be come
Signal from base station, signal power is relatively stable, without too big fluctuation, it is only necessary to conventional power control at a slow speed, with regard to letter can be reached
Number stable reception.However, in up-link, relay station station receives dials signal from mobile station, if mobile station from by
Nearly antenna, during dialing, the signal power of moment is bigger.Particularly GSM signal twinkling signal is more powerful, real
Middle test is dialed on border, when the signal moment dials, 25db bigger than normal signal or so, particularly multi-user are dialed simultaneously when, and wink
Between signal power it is just bigger.Such that RF power amplification pipe enters saturation region, cause distorted signals, also result in simultaneously
The digital processing link for inputting digital high-frequency amplification station overflows, unsuccessful so as to occur calling, or dials the problem of going offline.
Utility model content
Technical problem to be solved in the utility model is：A kind of output control device of relay station is provided, can be quick
The power for the signal that regulation relay station is sent.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of output control device of relay station, including radio circuit, analog-to-digital conversion module, FPGA and digital-to-analogue modulus of conversion
Block, the radio circuit include low-noise amplifier and attenuator, the low-noise amplifier, attenuator, analog-to-digital conversion module,
FPGA, D/A converter module are sequentially connected, the input of the low-noise amplifier connection attenuator, analog-to-digital conversion module connection
The output end of attenuator, D/A converter module are also connected with the controller of attenuator, and the low-noise amplifier is used for and relaying
Communication of standing connects.
Further, the attenuator uses IDTF1953 chips, and analog-to-digital conversion module uses AD58C28 chips, FPGA
Using X6cslx75t chips.
Further, the radio circuit also includes frequency mixer and amplifier tube, the attenuator, frequency mixer and amplifier tube according to
Secondary connection.
The beneficial effects of the utility model are：The signal that relay station is sent through low-noise amplifier input radio frequency circuit,
Transmit again to D/A converter module and carry out digital-to-analogue conversion, obtained data signal is inputted to FPGA.Due to FPGA response time
It is short, attenuator can quickly be controlled, so as to realize that the signal power sent to relay station carries out quick regulation.So as to protect
The normal of mobile station in card relay station up-link is dialed.
Brief description of the drawings
Fig. 1 is the structure connection diagram of the output control device of the relay station of the utility model embodiment；
Fig. 2 is the structure connection diagram of the output control device of the relay station of the utility model embodiment one.
Label declaration：
1st, radio circuit；11st, low-noise amplifier；12nd, attenuator；13rd, frequency mixer；14th, amplifier tube；2nd, analog-to-digital conversion mould
Block；3、FPGA；4th, D/A converter module.
Embodiment
For detailed description technology contents of the present utility model, the objects and the effects, below in conjunction with embodiment and match somebody with somebody
Accompanying drawing is closed to be explained.
The design of the utility model most critical is：The low-noise amplifier, attenuator, analog-to-digital conversion module, FPGA,
D/A converter module is sequentially connected, and D/A converter module is also connected with the controller of attenuator.Attenuator is carried out by FPGA
Quick control.
Fig. 1 is refer to, the utility model provides：
A kind of output control device of relay station, including radio circuit 1, analog-to-digital conversion module 2, FPGA3 and digital-to-analogue conversion
Module 4, the radio circuit 1 include low-noise amplifier 11 and attenuator 12, the low-noise amplifier 11, attenuator 12,
Analog-to-digital conversion module 2, FPGA3, D/A converter module 4 are sequentially connected, and the low-noise amplifier 11 connects the defeated of attenuator 12
Entering end, analog-to-digital conversion module 2 connects the output end of attenuator 12, and controller of the D/A converter module 4 also with attenuator 12 is connected,
The low-noise amplifier 11, which is used to communicate with relay station, to be connected.
It was found from foregoing description, the beneficial effects of the utility model are：By FPGA3 quick responses, to attenuator 12
Quick regulation is carried out, so as to realize that the power of the signal sent to repeater carries out quick regulation.Arrow meaning is data in Fig. 1
The direction of transmission.
Further, the attenuator 12 uses IDTF1953 chips, and analog-to-digital conversion module 2 uses AD58C28 chips,
FPGA3 uses X6cslx75t chips.
It was found from foregoing description, the maximum response speeds of IDTF1953 chips be 50M/s, it is necessary to the convergent response time be
20ns, and the sampling clock of AD58C28 chips is 61.44M, i.e. clock cycle are 16ns, the processing clock of X6cslx75t chips
More than 184.32M can be reached, i.e. its response time is smaller than 5.4ns, therefore disclosure satisfy that in 20ns just in larger wink
Between signal attenuation get off, and this time can meet the use of existing 2G/3G/4G relay systems completely, ensure mobile station
Normally dial.It should be noted that above-mentioned IDTF1953 chips refer to model IDTF1953 chip, AD58C28 chips
Model AD58C28 chip is referred to, X6cslx75t chips refer to model X6cslx75t chip.
Further, the radio circuit 1 also includes frequency mixer 13 and amplifier tube 14, the attenuator 12, frequency mixer 13
It is sequentially connected with amplifier tube 14.
Fig. 2 is refer to, embodiment one of the present utility model is：
A kind of output control device of relay station, including radio circuit 1, analog-to-digital conversion module 2, FPGA3 and digital-to-analogue conversion
Module 4, the radio circuit 1 include low-noise amplifier 11, attenuator 12, frequency mixer 13 and amplifier tube 14, the low noise
Amplifier 11, attenuator 12, analog-to-digital conversion module 2, FPGA3, D/A converter module 4 are sequentially connected, the attenuator 12, mixing
Device 13 and amplifier tube 14 are sequentially connected, wherein, the low-noise amplifier 11 connects the input of attenuator 12, analog-to-digital conversion mould
Block 2 connects the output end of attenuator 12, and controller of the D/A converter module 4 also with attenuator 12 is connected, the low noise amplification
Device 11, which is used to communicate with relay station, to be connected；The attenuator 12 uses IDTF1953 chips, and the analog-to-digital conversion module 2 uses
AD58C28 chips, FPGA3 use X6cslx75t chips.As shown in Fig. 2 wherein arrow meaning is the transmission direction of data.
In summary, the output control device of relay station provided by the utility model, quickly relay station can be sent
Larger twinkling signal is decayed, and ensures that the normal of mobile station is dialed.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalents made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in the technology neck of correlation
Domain, similarly it is included in scope of patent protection of the present utility model.
Claims (3)
1. a kind of output control device of relay station, it is characterised in that including radio circuit, analog-to-digital conversion module, FPGA sums
Mould modular converter, the radio circuit include low-noise amplifier and attenuator, the low-noise amplifier, attenuator, modulus
Modular converter, FPGA, D/A converter module are sequentially connected, and the input of the low-noise amplifier connection attenuator, modulus turns
The output end of block connection attenuator is changed the mold, D/A converter module is also connected with the controller of attenuator, the low-noise amplifier
Connected for being communicated with relay station.
2. the output control device of relay station according to claim 1, it is characterised in that the attenuator uses
IDTF1953 chips, analog-to-digital conversion module use AD58C28 chips, and FPGA uses X6cslx75t chips.
3. the output control device of relay station according to claim 1, it is characterised in that the radio circuit also includes mixed
Frequency device and amplifier tube, the attenuator, frequency mixer and amplifier tube are sequentially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720602687.5U CN206807792U (en) | 2017-05-26 | 2017-05-26 | The output control device of relay station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720602687.5U CN206807792U (en) | 2017-05-26 | 2017-05-26 | The output control device of relay station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206807792U true CN206807792U (en) | 2017-12-26 |
Family
ID=60743040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720602687.5U Expired - Fee Related CN206807792U (en) | 2017-05-26 | 2017-05-26 | The output control device of relay station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206807792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107426807A (en) * | 2017-05-26 | 2017-12-01 | 福建三元达科技有限公司 | The power control system and Poewr control method of relay station |
-
2017
- 2017-05-26 CN CN201720602687.5U patent/CN206807792U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107426807A (en) * | 2017-05-26 | 2017-12-01 | 福建三元达科技有限公司 | The power control system and Poewr control method of relay station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |