CN201616916U - Repeater based on GSM time slot control - Google Patents
Repeater based on GSM time slot control Download PDFInfo
- Publication number
- CN201616916U CN201616916U CN2009202943207U CN200920294320U CN201616916U CN 201616916 U CN201616916 U CN 201616916U CN 2009202943207 U CN2009202943207 U CN 2009202943207U CN 200920294320 U CN200920294320 U CN 200920294320U CN 201616916 U CN201616916 U CN 201616916U
- Authority
- CN
- China
- Prior art keywords
- gsm
- signal
- time slot
- control
- power amplifier
- 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
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
The utility model provides a repeater based on GSM time slot control, which can reduce power consumption and noise and comprises an ascending pathway. The ascending pathway comprises a main passage and an auxiliary passage, the auxiliary passage comprises a GSM signal time slot detector and a comparison controller which are sequentially connected to an output end of a coupler and control input ends of a power amplifier and an attenuator, a signal input end of the GSM signal time slot detector is electrically connected with a signal output end of a noise amplifier via the coupler, a signal output end of the GSM signal time slot detector is electrically connected with a signal input end of the comparison controller, and a control output end of the comparison controller is electrically connected with the control input end of the power amplifier. Working time of the power amplifier and gain of the ascending passage are controlled dynamically according to conditions whether the GSM time slot is occupied or not, and the power amplifier is turned off when the repeater is in an idling state, thereby reducing ascending gain of the repeater and power consumption of the repeater when in idling, and suppressing or decreasing noise.
Description
Technical field
The utility model relates to communication technical field, is specifically related to a kind of repeater.
Background technology
The repeater belongs to signal amplifying apparatus, is meant to play a kind of radio transmission transferring equipment that signal strengthens in the wireless communication transmissions process.The basic function of repeater is exactly a radiofrequency signal booster.
No matter whether the GSM time slot is occupied in existing repeater, all signal and noise carried out processing and amplifying, when the GSM time slot is idle, also increased noise in the waste electric energy, the base station formed disturb.
Simultaneously, in the existing repeater, interference signal can be invaded power amplifier by antenna, and synthetic intermodulation product between the useful signal, and with the useful signal emission, causes interference.
Summary of the invention
In view of this, the utility model proposes a kind of repeater based on the control of GSM time slot, its power consumption and noise are lower.
The purpose of this utility model is to realize like this, repeater based on the control of GSM time slot, comprise the uplink and the downlink that are connected between donor antenna and the cover antenna, described uplink comprises main channel and attached passage, described main channel comprises and is connected in the low noise amplifier of cover antenna one end to donor antenna one end successively, coupler, band pass filter, amplifier, delayer, attenuator and power amplifier, described attached passage comprise and are connected in the GSM signal slot detector of coupler output to power amplifier and attenuator control input end successively, comparison controller;
The signal input part of described GSM signal slot detector is electrically connected with the signal output part of low noise amplifier by coupler, the signal output part of described GSM signal slot detector is electrically connected with the signal input part of comparison controller, and the control output end of described comparison controller is electrically connected with the control input end of power amplifier.
Further, described uplink is electrically connected with donor antenna, cover antenna by first duplexer, second duplexer respectively with the two ends of downlink;
Further, also be connected with attenuator between described delayer and the power amplifier, the control output end of comparison controller is electrically connected with the control input end of attenuator;
Further, be provided with isolator between power amplifier and the duplexer;
Further, described comparison controller is a microcontroller;
Further, described GSM signal slot detector is a GSM acquisition of signal processor.
The utility model beneficial effect is: up GSM signal slot detector can detect the time slot signal of GSM direct end uplink, judge whether the GSM time slot is occupied, if time slot is occupied, the bias voltage and the control attenuator decay 0dB of power amplifier, the gain that recovers data feedback channel are opened in comparison controller control; Time slot does not have when occupied, the bias voltage and the control attenuator decay 31dB of power amplifier closed in comparison controller control, reduce the gain of data feedback channel, by according to GSM time slot whether occupied and the operating time of dynamic control power amplifiers and the gain of data feedback channel, make the repeater when idle condition, close power amplifier, reduce the up gain of repeater, the power consumption when reducing the free time, and can suppress or reduce noise.Simultaneously by using delayer that the GSM signal main signal of primary path is delayed time, make the GSM signal by after up GSM signal slot detector detection and judging, open the bias voltage of power amplifier and the gain that recovers data feedback channel by comparison controller before main signal arrives power amplifier, the assurance main signal is not lost.Be provided with isolator between power amplifier and the duplexer, can improve system isolation (〉=20dB), prevent that interference signal from invading power amplifier, and synthetic intermodulation product between the useful signal, and with the useful signal emission, and cause interference.
Other advantage of the present utility model, target, to set forth in the following description to a certain extent with feature, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can be passed through following specification, claims, and the specifically noted structure realizes and obtains in the accompanying drawing.
Description of drawings
In order to make the purpose of this utility model, technical scheme and advantage clearer, the present invention is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of the utility model based on the repeater of GSM time slot control.
Embodiment
Below will be described in detail preferred embodiment of the present utility model.
Referring to Fig. 1, the repeater based on the control of GSM time slot of present embodiment, comprise the uplink and the downlink that are connected between donor antenna 1 and the cover antenna 2, the main channel of described uplink comprises and is connected in the duplexer 10 of cover antenna 2 one ends to donor antenna 1 one ends successively, low noise amplifier 3, coupler 13, band pass filter 4, amplifier 5, delayer 6, attenuator 14, power amplifier 7, isolator 8 and duplexer 9, attached passage in the described uplink comprises GSM signal slot detector 11 and comparison controller 12, the signal input part of described GSM signal slot detector 11 is electrically connected with the signal output part of low noise amplifier 3 by coupler 13, the signal output part of described GSM signal slot detector 11 is electrically connected with the signal input part of comparison controller 12, and the control output end of described comparison controller 12 is electrically connected with the control end of power amplifier 7; Also be connected with attenuator 14 between delayer 6 and power amplifier 7, the control output end of comparison controller 12 is electrically connected with the control input end of attenuator 14; For preventing interference signal intrusion power amplifier, between power amplifier 7 and duplexer 9, also be connected with isolator 8.
Described uplink is electrically connected with donor antenna 1, cover antenna 2 by duplexer 9,10 respectively with the two ends of downlink, with common antenna.Described comparison controller is the MUC device; Described GSM signal slot detector is a GSM acquisition of signal processor.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (6)
1. based on the repeater of GSM time slot control, comprise the uplink and the downlink that are connected between donor antenna and the cover antenna, it is characterized in that: described uplink comprises main channel and attached passage, described main channel comprises and is connected in low noise amplifier, coupler, band pass filter, amplifier, delayer and the power amplifier of cover antenna one end to donor antenna one end successively, and described attached passage comprises and is connected in the coupler output successively to GSM signal slot detector, comparison controller to power amplifier and attenuator control input end;
The signal input part of described GSM signal slot detector is electrically connected with the signal output part of noise amplifier by coupler, the signal output part of described GSM signal slot detector is electrically connected with the signal input part of comparison controller, and the control output end of described comparison controller is electrically connected with the control input end of power amplifier.
2. the repeater based on the control of GSM time slot as claimed in claim 1, it is characterized in that: described uplink is electrically connected with donor antenna, cover antenna by first duplexer, second duplexer respectively with the two ends of downlink.
3. the repeater based on the control of GSM time slot as claimed in claim 1, it is characterized in that: also be connected with attenuator between described delayer and the power amplifier, the control output end of comparison controller is electrically connected with the control input end of attenuator.
4. the repeater based on the control of GSM time slot as claimed in claim 1 is characterized in that: be provided with isolator between power amplifier and the duplexer.
5. the repeater based on the control of GSM time slot as claimed in claim 1, it is characterized in that: described comparison controller is a microcontroller.
6. as each described repeater based on the control of GSM time slot in the claim 1 to 5, it is characterized in that: described GSM signal slot detector is a GSM acquisition of signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202943207U CN201616916U (en) | 2009-12-31 | 2009-12-31 | Repeater based on GSM time slot control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202943207U CN201616916U (en) | 2009-12-31 | 2009-12-31 | Repeater based on GSM time slot control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201616916U true CN201616916U (en) | 2010-10-27 |
Family
ID=43003276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202943207U Expired - Fee Related CN201616916U (en) | 2009-12-31 | 2009-12-31 | Repeater based on GSM time slot control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201616916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102546035A (en) * | 2010-12-10 | 2012-07-04 | 中国移动通信集团广东有限公司 | Signal interference suppression device |
| CN103187985A (en) * | 2011-12-27 | 2013-07-03 | 中国移动通信集团公司 | Communication equipment and communication system |
-
2009
- 2009-12-31 CN CN2009202943207U patent/CN201616916U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102546035A (en) * | 2010-12-10 | 2012-07-04 | 中国移动通信集团广东有限公司 | Signal interference suppression device |
| CN103187985A (en) * | 2011-12-27 | 2013-07-03 | 中国移动通信集团公司 | Communication equipment and communication system |
| CN103187985B (en) * | 2011-12-27 | 2015-05-27 | 中国移动通信集团公司 | Communication equipment and communication system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101298590B1 (en) | Apparatus and method of repeating in wireless communication systems | |
| CA2566642A1 (en) | Processor-controlled variable gain cellular network amplifiers with oscillation detection circuit | |
| CN203632660U (en) | Radiofrequency front circuit and system | |
| CN101409580B (en) | Energy-saving method and apparatus for GSM straight amplification station | |
| CN208143502U (en) | A kind of wireless access point device of high-power low-noise | |
| CN103546189A (en) | Radio-frequency front end circuit and system | |
| CN109150229A (en) | Control the mobile terminal and tdd systems of the receiving sensitivity of TDD system | |
| CN201616916U (en) | Repeater based on GSM time slot control | |
| CN103781161A (en) | Method, device and system used for distantly covering base station | |
| CN101742631B (en) | Repeater for solving covering of moving body and control method thereof | |
| KR102361113B1 (en) | Passive feedback path for pre-distortion in power amplifiers | |
| CN101170330A (en) | RF power amplification bypass system and its method | |
| CN111162808A (en) | Radio frequency receiving circuit, receiver and base station | |
| CN112491434A (en) | Radio frequency front-end circuit, radio frequency signal receiving method, communication method and communication equipment | |
| CN201018504Y (en) | Ground digital television repeater | |
| CN203661061U (en) | Mobile communication small repeater with antenna port standing wave warning | |
| CN110224770A (en) | A kind of method and apparatus improving wireless device receiving sensitivity | |
| CN201018502Y (en) | Trunk amplifier for TD-SCDMA system network overlay | |
| CN201639583U (en) | Frequency-selecting repeater | |
| CN205566272U (en) | Device of power in control communications system | |
| CN201039180Y (en) | A device for protecting receiving front terminal of time division duplex system | |
| CN104283826A (en) | Digital compensation method, device and duplexer | |
| CN204216853U (en) | Dual-channel analog pre-distorting power amplifier | |
| KR101514985B1 (en) | Energy dispersion consuming type hybrid radio communications repeater | |
| CN202750049U (en) | Weak wireless signal amplifier of time division duplexing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |