CN102946269A - Method and system for controlling gain of tower top amplifier, tower top amplifier and base station - Google Patents
Method and system for controlling gain of tower top amplifier, tower top amplifier and base station Download PDFInfo
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- CN102946269A CN102946269A CN2012104590757A CN201210459075A CN102946269A CN 102946269 A CN102946269 A CN 102946269A CN 2012104590757 A CN2012104590757 A CN 2012104590757A CN 201210459075 A CN201210459075 A CN 201210459075A CN 102946269 A CN102946269 A CN 102946269A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a method and a system for controlling gain of a tower top amplifier, a tower top amplifier and a base station. The method comprises the following steps of detecting a second power when a test signal leaves a tower top amplifier; sending the second power to a base station through a monitoring link; detecting a third power of the test signal when the base station receives the test signal; obtaining the difference value between the second power and the third power, and adjusting the gain of the tower top amplifier according to the difference value. The method is initialized by an uplink of a tower amplifier, the tower amplifier sends the test signal to the base station, and the loss situation of the test signal in the transmission process of an antenna feeder link is identified through detecting the power attenuation of the test signal, thereby adjusting the gain of the tower amplifier. The method further can be finished by the tower amplifier and the base station automatically, no artificial interference exists, excessive conversion processes are not required, only the difference value of the second power and the third power is required to be calculated, thus, the gain can be adjusted more accurately, and the communication can be normally and effectively carried out; and in addition, the method is suitable for both bidirectional tower amplifiers and one-way tower amplifiers.
Description
Technical field
The present invention relates to the communication equipment technical field, particularly method, system, tower amplifier and the base station of control tower amplifier gain.
Background technology
Tower amplifier (TMA, Tower Mounted Amplifier) is called for short tower puts 100, as shown in Figure 1, generally is installed in cat head near a low noise amplifier after the reception antenna ANT.
When uplink signal transmissions, tower puts 100 can will receive the signal amplification before entering feeder line 300 with receiving signal, then be transferred to base station 200 by feeder line 200.Thereby improve the quality of uplink signal, improve call reliability and speech quality, enlarge simultaneously the residential quarter area coverage.
But, how the gain that tower is put is set, make it can satisfy signal and be amplified to effectively, can not cause the saturated of other devices again, therefore, how the gain that tower puts accurately is set is very important.
How the Insertion Loss value that gain that tower puts just must obtain the antenna feeder circuit is set exactly.The below introduces a kind of method that tower amplification gain is set by the Insertion Loss value that obtains the antenna feeder circuit.
At present, prior art discloses a kind of method that tower amplifier gain is set.As shown in Figure 1, this application is specifically to adjust the gain of tower amplifier by the length of measuring feeder line.Because the size of the yield value of tower amplifier need to be decided by the length of feeder line, this application is to measure feeder line length by measuring input port and the magnitude of voltage of output port and the method for current value.But still there is certain shortcoming in this application, is specially:
Middle conversion step is too many, and all there is error in each conversion, will cause so final resultant error larger, therefore causes the gain adjustment precision of tower amplifier lower.
Therefore, how the gain that tower is put can be set exactly, and can two-way tower put with unidirectional tower place system in all applicable, be those skilled in the art's technical issues that need to address.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method, system, tower amplifier and base station of controlling tower amplifier gain, and the gain that tower is put can be set exactly, and can two-way tower put with unidirectional tower place system in all applicable.
The invention provides a kind of method of controlling tower amplifier gain, it is characterized in that, comprising:
The second power P 2 when detecting test signal and leaving described tower amplifier, and described the second power P 2 sent to the base station by monitoring link;
The 3rd power P 3 of the test signal when base stations detected receives described test signal;
Obtain the difference of described the second power P 2 and the 3rd power P 3, adjust the gain of tower amplifier according to described difference.
Preferably, described test signal is produced by described tower amplifier;
Or described test signal is the upward signal that described tower amplifier arrives through antenna reception, and this upward signal is sent by terminal.
Preferably, when the described test signal upward signal that to be described tower amplifier arrive through antenna reception, obtain the second power P 2 and the 3rd power P 3 of described test signal by the compensation communication delay.
The present invention also provides a kind of system that controls tower amplifier gain, comprising: tower amplifier, monitoring link and base station;
Described tower amplifier is used for sending test massage to the base station; The second power P 2 when detecting test signal and leaving tower amplifier, and described the second power P 2 sent to the base station by monitoring link;
Described base station, the 3rd power P 3 of test signal when receiving described test signal; Obtain the difference of described the second power P 2 and the 3rd power P 3, produce the order of adjusting tower amplifier gain by this difference, and this order is sent to tower amplifier, tower amplifier is adjusted the gain of self according to described order.
Preferably, described tower amplifier is also for generation of described test signal.
Preferably, also comprise antenna and terminal;
Described test signal is the upward signal that described tower amplifier arrives through antenna reception, and terminal is used for sending this upward signal.
The present invention also provides a kind of tower amplifier, comprising: transmitting element, tower put power detecting unit and tower is put control unit;
Described transmitting element is used for test signal is sent to the base station;
Described tower is put power detecting unit, and the second power P 2 when leaving tower amplifier for detection of described test signal sends to described tower with this second power P 2 and puts control unit;
Described tower is put control unit, is used for described the second power P 2 is sent to the base station by the monitoring link, and receives the order of the adjustment tower amplifier gain of base station transmission, and this order produces according to described difference; Described difference is: the 3rd power P 3 of the test signal the when base station receives described test signal and the difference of described the second power P 2.
Preferably, also comprise signal generator, for generation of described test signal, described test signal is put link by tower send to described transmitting element.
Preferably, also comprise low noise amplifier, be used for the test signal that sends by the antenna reception terminal, and test signal is put link by tower send to described transmitting element.
The present invention also provides a kind of base station, comprising: base station power detector and base station controller;
Described base station power detector, the 3rd power P 3 of the test signal that sends for detection of the base station that receives; And described the 3rd power P 3 sent to described base station controller;
Described base station controller, the second power P 2 when leaving tower amplifier for the test signal that obtains the tower amplifier transmission and the difference of described the 3rd power P 3, produced the order of adjusting tower amplifier gain by described difference, and this order sent to described tower amplifier, described tower amplifier is adjusted the gain of self according to this order.
Compared with prior art, the present invention has the following advantages:
Method, system, tower amplifier and the base station of this control tower amplifier gain, the second power P 2 when the detection test signal is left described tower amplifier; And with described the second power P 2 by the monitoring link send to the base station; The 3rd power P 3 of the test signal when base stations detected receives described test signal; Obtain the difference of described the second power P 2 and the 3rd power P 3, adjust the gain of tower amplifier according to described difference.The up link that the method is put by tower is initiated, and tower is put to the base station and sent test massage, and judges the loss situation of test signal in antenna feeder link transmission process by the power attenuation that detects test signal, and then adjusts the gain that tower is put.The method can be put with the base station by tower and automatically be finished since between do not have manual intervention, and middle do not need too many conversion process, the difference that only needs to calculate P2 and P3 get final product, so can adjust more accurately gain, normally effectively the carrying out of maintain communications.And the method is put at two-way tower, and unidirectional tower is put all applicable.
Description of drawings
Fig. 1 is that tower is put application system figure in the prior art;
Fig. 2 is the device schematic diagram of adjusting tower amplification gain in the prior art;
Fig. 3 is embodiment of the method one flow chart of control tower amplifier gain provided by the invention;
Fig. 4 is system embodiment one schematic diagram of control tower amplifier gain provided by the invention;
Fig. 5 is system embodiment two schematic diagrames of control tower amplifier gain provided by the invention;
Fig. 6 is tower amplifier embodiment one structure chart provided by the invention;
Fig. 7 is tower amplifier embodiment two structure charts provided by the invention;
Fig. 8 is tower amplifier embodiment three structure charts provided by the invention;
Fig. 9 is embodiment one schematic diagram in base station provided by the invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
Referring to Fig. 3, this figure is embodiment of the method one flow chart of control tower amplifier gain provided by the invention.
The method of the control tower amplifier gain that present embodiment provides comprises:
S301: the second power P 2 when tower amplifier detects test signal and leaves described tower amplifier, and described the second power P 2 sent to the base station by monitoring link;
The power of described test signal self is the first power P 1;
Owing to have the first power P 1 of self before test signal does not send, when producing loss in the process of transmitting, this test signal can be attenuated, the second power P 2 when therefore also needing to detect this signal and leaving tower amplifier.
Be understandable that the difference of P2 and P1 is that test signal is put the inner loss that produces at tower.
Described test signal is radiofrequency signal, sends to the base station by the antenna feeder link.
S302: the 3rd power P 3 of the test signal when the base station base stations detected receives described test signal;
And test signal during to the base station, can continue loss at the antenna feeder link through the antenna feeder link transmission, and the power of test signal becomes the 3rd power P 3 when arriving the base station like this.
Be understandable that the difference of P3 and P2 is the loss that test signal produces at the antenna feeder link.
S303: the base station obtains the difference of described the second power P 2 and the 3rd power P 3, adjusts the gain of tower amplifier according to described difference.
Method, system, tower amplifier and the base station of this control tower amplifier gain, the second power P 2 when the detection test signal is left described tower amplifier; And with described the second power P 2 by the monitoring link send to the base station; The 3rd power P 3 of the test signal when base stations detected receives described test signal; Obtain the difference of described the second power P 2 and the 3rd power P 3, adjusted the gain of tower amplifier by described difference.The up link that the method is put by tower is initiated, and tower is put to the base station and sent test massage, and judges the loss situation of test signal in antenna feeder link transmission process by the power attenuation that detects test signal, and then adjusts the gain that tower is put.The method can be put with the base station by tower and automatically be finished since between do not have manual intervention, and middle do not need too many conversion process, the difference that only needs to calculate P2 and P3 get final product, so can adjust more accurately gain, normally effectively the carrying out of maintain communications.And the method is put at two-way tower, and unidirectional tower is put all applicable.
Need to prove that described test signal is produced by described tower amplifier; Or described test signal is the upward signal that described tower amplifier arrives through antenna reception, and this upward signal is sent by terminal equipment.
Described terminal equipment can be mobile phone, also can be intercom.
Need to prove, when the described test signal upward signal that to be described tower amplifier arrive through antenna reception, obtain the second power P 2 and the 3rd power P 3 of synchronous described test signal by the compensation communication delay.
Because the described test signal that terminal equipment sends is discontinuous signal, therefore, put the test signal of the test signal received and base station receiving and guarantee synchronously in order to guarantee tower, need to communicate to this test signal the compensation of time delay, guarantee that P1, P2 and P3 measure same test signal.
Based on the method for the above control tower amplifier gain that provides, the present invention also provides a kind of system that controls tower amplifier gain.
Referring to Fig. 4, this figure is system embodiment one schematic diagram of control tower amplifier gain provided by the invention.
The system of the control tower amplifier gain that present embodiment provides comprises tower amplifier 100, monitoring link 300a and base station 200;
Described tower amplifier 100 is used for to the base station 200 and sends test massage, the second power P 2 when detecting test signal and leaving tower amplifier 100, and by monitoring link 300a described the second power P 2 is sent to base station 200;
The power of described test signal self is the first power P 1;
Described base station 200, the 3rd power P 3 of test signal when receiving described test signal; Difference and described first power P 1 of described the second power P 2 and the 3rd power P 3 are compared, obtain the difference of described the second power P 2 and the 3rd power P 3, produced the order of adjusting tower amplifier 100 gains by this difference, and this order sent to tower amplifier 100, tower amplifier 100 is adjusted the gain of self according to described order.
The system of this control tower amplifier gain, realized the measurement of the power of test signal by the internal components of tower amplifier 100 and base station 200, the second power P 2 when test signal is left tower amplifier 100 detects the 3rd power P 3 of test signal when receiving described test signal by monitoring link 300a transmission; Difference and described first power P 1 of described the second power P 2 and the 3rd power P 3 are compared, obtain the difference of described the second power P 2 and the 3rd power P 3, this system of gain that is adjusted tower amplifier 100 by this difference can finish the detection of loss and the adjustment of gain automatically, since between do not have manual intervention, and do not need communication disruption, therefore can adjust more accurately gain, normally effectively the carrying out of maintain communications.
Referring to Fig. 5, this figure is system embodiment two schematic diagrames of control tower amplifier gain provided by the invention.
The system of the control tower amplifier gain that present embodiment provides also comprises antenna ANT and terminal 400;
Described test signal is the upward signal that described tower amplifier 100 receives through antenna ANT, and terminal 400 is used for sending this upward signal.
Need to prove, when the described test signal upward signal that to be described tower amplifier arrive through antenna reception, obtain the second power P 2 and the 3rd power P 3 of synchronous described test signal by the compensation communication delay.
Because the described test signal sent of terminal is not for being continuous signal, therefore, in order to guarantee that tower puts the test signal of the test signal received and base station receiving and guarantee need to communicate to this test signal the compensation of time delay synchronously, guarantee that P1, P2 and P3 measure same test signal.
Need to prove that in another embodiment, described tower amplifier 100 is also for generation of described test signal.Rather than produce described test signal by terminal.
The embodiment of the invention also provides a kind of tower amplifier, is elaborated below in conjunction with accompanying drawing.
Referring to Fig. 6, this figure is tower amplifier embodiment one structure chart provided by the invention.
The tower amplifier that present embodiment provides comprises: transmitting element 101, tower put power detecting unit 102 and tower is put control unit 103;
Described transmitting element 101 is used for test signal is sent to the base station;
Described tower is put power detecting unit 102, and the second power P 2 when leaving tower amplifier for detection of described test signal sends to described tower with this second power P 2 and puts control unit 103; The monitoring link sends to the base station;
Described tower is put control unit 103, is used for described the second power P 2 is sent to the base station by the monitoring link, and receives the order of the adjustment tower amplifier gain of base station transmission, and this order produces according to described difference; Described difference is: the 3rd power P 3 of the test signal the when base station receives described test signal and the difference of described the second power P 2.
Need to prove that described test signal is radiofrequency signal, sends to the base station by the antenna feeder link.
The second power P 2 when the detection test signal is left described tower amplifier all sends to the base station by the monitoring link with described the second power P 2; The 3rd power P 3 of the test signal when base stations detected receives described test signal; Obtain the difference of described the second power P 2 and the 3rd power P 3, adjusted the gain of tower amplifier by this difference.This tower amplifier can be finished the detection of loss and the adjustment of gain automatically under the control of base station since between do not have manual intervention, and do not need communication disruption, therefore can adjust more accurately gain, normally effectively the carrying out of maintain communications.
Referring to Fig. 7, this figure is tower amplifier embodiment two structure charts provided by the invention.
The tower amplifier that present embodiment provides also comprises signal generator 104, for generation of described test signal, described test signal is put link by tower send to described transmitting element 101.
Tower amplifier self produces described test signal in the present embodiment.
Referring to Fig. 8, among another tower amplifier embodiment, also comprise low noise amplifier LNA, be used for the test signal by the transmission of antenna ANT receiving terminal, and test signal is sent to described transmitting element 101.
Produce described test signal by terminal in the present embodiment, tower amplifier is by this test signal of antenna reception.
Need to prove that described terminal can be mobile phone, also can be other Wireless Telecom Equipments such as intercom.
The embodiment of the invention also provides a kind of base station, is elaborated below in conjunction with accompanying drawing.
Referring to Fig. 9, this figure is embodiment one schematic diagram in base station provided by the invention.
The base station that present embodiment provides comprises: base station power detector 901, base station controller 902;
Described base station power detector 901, the 3rd power P 3 of the test signal that sends for detection of the base station that receives; And described the 3rd power P 3 sent to described base station controller 902;
Described base station controller 902, the second power P 2 when leaving tower amplifier for the test signal that obtains the tower amplifier transmission and the difference of described the 3rd power P 3, produced the order of adjusting tower amplifier gain by described difference, and this order sent to described tower amplifier, described tower amplifier is adjusted the gain of self according to this order.
Be understandable that the difference of P3 and P2 is the loss that test signal produces at the antenna feeder link.
The base station that present embodiment provides can be finished the attenuation that tower is put the test signal of sending and be finished test, and will produce the order of adjusting tower amplification gain according to test result, this order is sent to tower puts, make tower put the gain of adjusting self according to ordering, thereby realize the Long-distance Control that put tower the base station.Need not artificial intervention in the middle of this shows whole process, and do not need interrupt communication.And finish whole process and automatically finish, can both increase work efficiency like this, guarantee again the accurate of measurement data.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Although the present invention discloses as above with preferred embodiment, yet is not to limit the present invention.Any those of ordinary skill in the art, do not breaking away from the technical solution of the present invention scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention according to any simple modification, equivalent variations and the modification that technical spirit of the present invention is done above embodiment, all still belongs in the scope of technical solution of the present invention protection.
Claims (10)
1. a method of controlling tower amplifier gain is characterized in that, comprising:
The second power P 2 when detecting test signal and leaving described tower amplifier, and described the second power P 2 sent to the base station by monitoring link;
The 3rd power P 3 of the test signal when base stations detected receives described test signal;
Obtain the difference of described the second power P 2 and the 3rd power P 3, adjust the gain of tower amplifier according to described difference.
2. method according to claim 1 is characterized in that, described test signal is produced by described tower amplifier;
Or described test signal is the upward signal that described tower amplifier arrives through antenna reception, and this upward signal is sent by terminal.
3. method according to claim 2 is characterized in that, when the described test signal upward signal that to be described tower amplifier arrive through antenna reception, obtains the second power P 2 and the 3rd power P 3 of described test signal by the compensation communication delay.
4. a system that controls tower amplifier gain is characterized in that, comprising: tower amplifier, monitoring link and base station;
Described tower amplifier is used for sending test massage to the base station; The second power P 2 when detecting test signal and leaving tower amplifier, and described the second power P 2 sent to the base station by monitoring link;
Described base station, the 3rd power P 3 of test signal when receiving described test signal; Obtain the difference of described the second power P 2 and the 3rd power P 3, produce the order of adjusting tower amplifier gain by this difference, and this order is sent to tower amplifier, tower amplifier is adjusted the gain of self according to described order.
5. system according to claim 4 is characterized in that, described tower amplifier is also for generation of described test signal.
6. system according to claim 4 is characterized in that, also comprises antenna and terminal;
Described test signal is the upward signal that described tower amplifier arrives through antenna reception, and terminal is used for sending this upward signal.
7. a tower amplifier is characterized in that, comprising: transmitting element, tower put power detecting unit and tower is put control unit;
Described transmitting element is used for test signal is sent to the base station;
Described tower is put power detecting unit, and the second power P 2 when leaving tower amplifier for detection of described test signal sends to described tower with this second power P 2 and puts control unit;
Described tower is put control unit, is used for described the second power P 2 is sent to the base station by the monitoring link, and receives the order of the adjustment tower amplifier gain of base station transmission, and this order produces according to described difference; Described difference is: the 3rd power P 3 of the test signal the when base station receives described test signal and the difference of described the second power P 2.
8. tower amplifier according to claim 7 is characterized in that, also comprises signal generator, for generation of described test signal, described test signal is put link by tower send to described transmitting element.
9. tower amplifier according to claim 7 is characterized in that, also comprises low noise amplifier, is used for the test signal that sends by the antenna reception terminal, and test signal is put link by tower sends to described transmitting element.
10. a base station is characterized in that, comprising: base station power detector and base station controller;
Described base station power detector, the 3rd power P 3 of the test signal that sends for detection of the base station that receives; And described the 3rd power P 3 sent to described base station controller;
Described base station controller, the second power P 2 when leaving tower amplifier for the test signal that obtains the tower amplifier transmission and the difference of described the 3rd power P 3, produced the order of adjusting tower amplifier gain by described difference, and this order sent to described tower amplifier, described tower amplifier is adjusted the gain of self according to this order.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104590757A CN102946269A (en) | 2012-11-15 | 2012-11-15 | Method and system for controlling gain of tower top amplifier, tower top amplifier and base station |
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| CN2012104590757A CN102946269A (en) | 2012-11-15 | 2012-11-15 | Method and system for controlling gain of tower top amplifier, tower top amplifier and base station |
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| CN2012104590757A Pending CN102946269A (en) | 2012-11-15 | 2012-11-15 | Method and system for controlling gain of tower top amplifier, tower top amplifier and base station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104168076A (en) * | 2014-08-29 | 2014-11-26 | 京信通信系统（中国）有限公司 | Method and system for detecting power amplifier abnormality |
| CN104753544A (en) * | 2013-12-29 | 2015-07-01 | 展讯通信（上海）有限公司 | Power calibration method and system for radio frequency receiver of terminal |
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| CN101068386A (en) * | 2007-05-17 | 2007-11-07 | 华为技术有限公司 | Base station system, tower top amplifier, base station and feeder line length measuring method |
| EP2178336A1 (en) * | 2007-09-26 | 2010-04-21 | Huawei Technologies Co., Ltd. | A method, device and base station system for base station compatible with high gain tower mounted amplifier |
| CN202197277U (en) * | 2011-08-24 | 2012-04-18 | 成都措普科技有限公司 | Low noise tower top amplifier |
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| CN101068386A (en) * | 2007-05-17 | 2007-11-07 | 华为技术有限公司 | Base station system, tower top amplifier, base station and feeder line length measuring method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104753544A (en) * | 2013-12-29 | 2015-07-01 | 展讯通信（上海）有限公司 | Power calibration method and system for radio frequency receiver of terminal |
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| CN104168076B (en) * | 2014-08-29 | 2016-09-07 | 京信通信系统（中国）有限公司 | Power amplifier method for detecting abnormality and system |
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Application publication date: 20130227 |