CN107466049A - A kind of base station uplink received power calibration method and device - Google Patents
A kind of base station uplink received power calibration method and device Download PDFInfo
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- CN107466049A CN107466049A CN201610388531.1A CN201610388531A CN107466049A CN 107466049 A CN107466049 A CN 107466049A CN 201610388531 A CN201610388531 A CN 201610388531A CN 107466049 A CN107466049 A CN 107466049A
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- received power
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- uplink received
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
The embodiment of the invention discloses a kind of calibration of base station uplink received power, methods described includes：When determining receiving channel exception, launch reference frequency point signal in transmission channel, the frequency of the reference frequency point signal can be in the range of receives frequency the receiving channel；When the receiving channel receives the reference frequency point signal, the first uplink received power of the reference frequency point signal is detected；Calculated according to the first uplink received power of the reference frequency point signal and default uplink received power and estimate gain；According to it is described estimate gain calibration described in the uplink received power of echo signal that receives of receiving channel.The embodiment of the invention also discloses a kind of base station uplink received power calibrating installation.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of base station uplink received power calibration method and device.
Background technology
With the development of the communication technology, network size constantly expands, and the quantity of base station is also more and more, at present total number of base
Several ten million are reached.
Generally, the Remote Radio Unit in base station (Radio Remote Unit, RRU) includes transmitter and receiver, institute
The receiving channel for stating receiver is made up of a series of radio-frequency devices such as active device, wave filter.Base station uplink received power connects
The power for the signal that channel reception arrives is received, its accuracy can influence the overall performance in base station, example, and control terminal is entered when base station
When row cell switches, base station needs to detect the signal to noise ratio of receiving channel, if the uplink received power detected is forbidden
Really, then the signal to noise ratio calculated according to uplink received power will malfunction, therefore in order to ensure third generation partner program (3rd
Generation Partnership Project, 3GPP) protocol requirement to uplink received power measurement accuracy, it is necessary to
Base station uplink received power is calibrated.
At present, conventional calibration method is before being dispatched from the factory in base station, and base station uplink received power is carried out by external instrument
Calibration；But this calibration method is needed by external instrument, hardware cost height；Moreover, carry out one before can only being dispatched from the factory in base station
Secondary calibration, and the service life of base station is generally in 5-10 at present, with the growth of base station usage time, the radio frequency in base station
Device can continuous aging, radio-frequency devices will frequency of occurrences skew, gain reduction, Insertion Loss become it is big the problems such as, primary calibration is obvious
It cannot be guaranteed that the accuracy of the base station uplink received power subsequently measured.
If necessary to carry out real time calibration to base station uplink received power, then need individually to calibrate for base station design logical
Road, will be in real time to the reception work(when detecting that the receiving power on the calibrated channel is unequal with default receiving power
Rate compensates, and the value of compensation is to detect the opposite number of receiving power and default receiving power difference on the calibrated channel, so
And so need to increase calibrated channel, the design structure of base station can be made more complicated, the reliability of the uplink received power of measurement
It will reduce.
The content of the invention
To solve existing technical problem, the embodiment of the present invention provides a kind of base station uplink received power calibration method
And device, the purpose for reducing cost, improving Measurement reliability can be reached.
To reach above-mentioned purpose, what the technical scheme of the embodiment of the present invention was realized in：
The invention provides a kind of base station uplink received power calibration method, methods described includes：
When determining receiving channel exception, launch reference frequency point signal, the frequency of the reference frequency point signal in transmission channel
In the receiving channel can be in the range of receives frequency；
When the receiving channel receives the reference frequency point signal, detect the reference frequency point signal first is up
Receiving power；
Calculated according to the first uplink received power of the reference frequency point signal and default uplink received power and estimate gain；
According to it is described estimate gain calibration described in the uplink received power of echo signal that receives of receiving channel.
In such scheme, the determination receiving channel includes extremely：
Obtain the upstream noise power of the receiving channel；
According to the upstream noise power and default upstream noise power calculation threshold value；
When the threshold value is more than predetermined threshold value, determine that the receiving channel is abnormal.
In such scheme, the upper of the echo signal that receiving channel described in gain calibration receives is estimated described in the basis
Row receiving power, including：
Gain is estimated according to described and reference gain determines calibration-gain；
The uplink received power for the echo signal that the receiving channel receives is calibrated according to the calibration-gain.
In such scheme, gain is estimated described in the basis and reference gain determines that calibration-gain includes：
It is more than predetermined threshold value in the difference for estimating gain and the reference gain, the calibration-gain is estimated to be described
Gain；
When the difference for estimating gain and the reference gain is less than or equal to the predetermined threshold value, the calibration-gain is
The reference gain.
In such scheme, gain is estimated described in the basis and after reference gain determines calibration-gain, methods described
Also include：
Reference frequency point signal is being penetrated described in transmission channel hair；
When the receiving channel receives the reference frequency point signal, detect the reference frequency point signal second is up
Receiving power；
The second uplink received power of the reference frequency point signal is calibrated according to the calibration-gain；
Accordingly, the uplink receiving that the echo signal that the receiving channel receives is calibrated according to the calibration-gain
Power includes：
Second uplink received power of the reference frequency point signal after calibration and the default uplink received power
When difference is less than or equal to preset difference value, the up of the echo signal that the receiving channel receives is calibrated according to the calibration-gain
Receiving power.
Present invention also offers a kind of base station uplink received power calibrating installation, described device includes：
Judging unit, for judging whether receiving channel is abnormal；
Transmitter unit, for when the judging unit determines the receiving channel exception, launching in transmission channel and referring to
Frequency signal, the frequency of the reference frequency point signal can be in the range of receives frequencies the receiving channel；
Detection unit, for receiving the reference frequency point signal of the transmitter unit transmitting in the receiving channel
When, detect the first uplink received power of the reference frequency point signal；
Computing unit, for the first uplink receiving work(of the reference frequency point signal detected according to the detection unit
Rate and default uplink received power, which calculate, estimates gain；
Alignment unit, for detection unit inspection described in estimating gain calibration described in being calculated according to the computing unit
The uplink received power for the echo signal that the receiving channel measured receives.
In such scheme, the judging unit, the upstream noise power specifically for obtaining the receiving channel；According to
The upstream noise power and default upstream noise power calculation threshold value；When the threshold value is more than predetermined threshold value, it is determined that
The receiving channel is abnormal.
In such scheme, the alignment unit, specifically for estimating described in being calculated according to the computing unit
Gain and reference gain determine calibration-gain；Led to according to the reception that the calibration-gain calibration detection unit detects
The uplink received power for the echo signal that road receives.
In such scheme, the alignment unit, specifically in the difference for estimating gain and the reference gain
More than predetermined threshold value, the calibration-gain estimates gain to be described；Gain is estimated described and the difference of the reference gain is less than
During equal to the predetermined threshold value, the calibration-gain is the reference gain.
In such scheme, described device also includes authentication unit；
The transmitter unit, it is additionally operable to penetrating reference frequency point signal described in transmission channel hair；
The detection unit, it is additionally operable to receive the reference frequency point of the transmitter unit transmitting in the receiving channel
During signal, the second uplink received power of the reference frequency point signal is detected；
The alignment unit, the reference frequency point signal detected according to the calibration-gain calibration detection unit
The second uplink received power；
The authentication unit, second for judging the reference frequency point signal after alignment unit calibration up connects
Power and the default uplink received power difference are received whether in the range of preset difference value；
The alignment unit, second specifically for determining the reference frequency point signal after calibration in the authentication unit
When uplink received power and the default uplink received power difference are in the range of preset difference value, calibrated according to the calibration-gain
The uplink received power for the echo signal that the receiving channel that the detection unit detects receives.
The embodiments of the invention provide a kind of base station uplink received power calibration method and device, base station uplink received power
Calibrating installation is launched reference frequency point signal in transmission channel, then, connect in the receiving channel it is determined that during receiving channel exception
When receiving the reference frequency point signal, the first uplink received power of the reference frequency point signal is detected, further according to the reference
First uplink received power of frequency signal and default uplink received power, which calculate, estimates gain, finally, increasing is estimated according to described
Benefit calibrates the uplink received power for the echo signal that the receiving channel receives.So, any radio-frequency devices are not being increased
In the case of, it is possible to real time calibration is carried out to base station uplink received power, reduces cost；In addition, this method is based on base
Stand existing design, be not required to increase calibrated channel, the design structure of base station is simple, improves the reliability of measurement.
Brief description of the drawings
Fig. 1 is the structured flowchart of the RRU in base station a kind of；
Fig. 2 is a kind of schematic flow sheet for base station uplink received power calibration method that the embodiment of the present invention 1 provides；
Fig. 3 is a kind of base station uplink received power calibration method in actual applications that the embodiment of the present invention 1 provides
Schematic flow sheet；
Fig. 4 is a kind of structured flowchart for base station uplink received power calibrating installation that the embodiment of the present invention 2 provides.
Embodiment
Application scenarios involved by the embodiment of the present invention are as shown in figure 1, the RRU in base station includes connecing field-programmable gate array
Arrange (Field Programmable Gate Array, FPGA) 101, receiving channel 102, sendaisle 103, the and of duplexer 104
Antenna 105, wherein, the FPGA101 is connected with the receiving channel 102 and the transmission channel 103 respectively, and described receive is led to
Road 102 and the transmission channel 103 are connected with the duplexer 104, and the duplexer 104 is connected with the antenna 105.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.
Embodiment 1
A kind of base station uplink received power calibration method is present embodiments provided, as shown in Fig. 2 the place of the present embodiment method
Reason flow comprises the following steps：
Step 201, when determining receiving channel exception, launch reference frequency point signal in transmission channel.
Wherein, the frequency of the reference frequency point signal in the receiving channel can be in the range of receives frequency.
Based on the scene shown in Fig. 1, the base station uplink received power device can be FPGA101, when FPGA101 is determined
When receiving channel (also referred to as data feedback channel) 102 occurs abnormal, ginseng will be sent at transmission channel 103 (also referred to as down going channel)
Examine frequency signal, the frequency of the reference frequency point signal can be in the range of receives frequency the receiving channel 102.
Explanation is needed exist for, the base station uplink received power device can also be other devices, such as numeral letter
Number processor (Digital Signal Processing, DSP) etc., is not specifically limited in the present invention.
Optionally, the power of the reference frequency point signal can be that the maximum transmission power of base station subtracts the first preset value,
Example, first preset value can be 3db；The power of the reference frequency point signal can also be the emission maximum work(of base station
Rate；Certainly, the power of the reference frequency point signal can also be arranged as required to for other values, not do specific limit in the present invention
It is fixed.
Optionally, the signal modulation mode of the reference frequency point signal can be single-tone continuous wave (Continuous
Wave, CW) modulation.Certainly, the signal modulation mode of the reference frequency point signal can also be arranged as required to modulate for other
Mode, it is not specifically limited in the present invention.
Optionally, the determination receiving channel comprises the following steps extremely：
Step A1, the upstream noise power of the receiving channel is obtained.
The FPGA101 obtains the upstream noise power of the receiving channel 102 according to system configuration parameter, i.e., described
The power of the noise of receiving channel 102.
Step A2, according to the upstream noise power and default upstream noise power calculation threshold value.
The FPGA101 according to the upstream noise power and default upstream noise power calculation threshold value, wherein, it is described
Threshold value can be the difference of the upstream noise power and the default upstream noise power, here, the difference is more than etc.
In 0.
Here, the calculation formula of the default upstream noise power can be：- 174dBm+ receiver noises+10*lg
(BW)；Wherein, the receiver noise is the second preset value, and the span of second preset value is between 1dB to 3dB；
The BW is the default band bandwidth of receiving channel or transmission channel.
By taking Long Term Evolution (Long Term Evolution, LTE) network as an example, when with a width of 5M, bottom make an uproar for-
During 104.5dBm+/- 2dB, the default upstream noise power can be -106.5dBm, when with a width of 10M, bottom make an uproar for -
During 101.5dBm+/- 2dB, the default upstream noise power can be -103.5dBm, when with a width of 15M, bottom make an uproar for -
During 100dBm+/- 2dB, the default upstream noise power can be -102dBm, be made an uproar when with a width of 20M, bottom as -98.5dBm
During +/- 2dB, the default upstream noise power can be -100.5dBm.Certainly, the default upstream noise power can also
It is arranged as required to for other values, be not specifically limited in the present invention.
Step A3, when described threshold value is more than predetermined threshold value, determine that the receiving channel is abnormal.
Whether the FPGA101 judges receiving channel 102 by the size of the threshold value and predetermined threshold value
There is exception, when the threshold value is more than predetermined threshold value, show that exception occurs in receiving channel 102, at this moment, it is necessary to dock
The uplink received power for receiving passage 102 is calibrated；When the threshold value is less than or equal to predetermined threshold value, show receiving channel
102 normal operations, it is not necessary to calibrated to the uplink received power of receiving channel 102.
Optionally, the predetermined threshold value could be arranged to 4dB, and certain predetermined threshold value may be arranged as other
Value, is not specifically limited in the present invention.
Optionally, it is described to include in transmission channel transmitting reference frequency point signal：When reaching predetermined time, in transmission channel
Launch reference frequency point signal.Here, at the time of the predetermined time is when BTS service amount is less than pre-set business amount, example,
The predetermined time can be 3:00 AM to any instant between 4:00 AM.
Need exist for, determine that the abnormal method of receiving channel also has many kinds, including but not limited to above-mentioned side
Method.
Step 202, when the receiving channel receives the reference frequency point signal, detect the reference frequency point signal
First uplink received power.
After the launch channel launches the reference frequency point signal, the reference frequency point signal enters the FPGA101
Enter the receiving channel 102, when the receiving channel 102 receives the reference frequency point signal, detect the reference frequency point
First uplink received power of signal.
Optionally, as shown in figure 1, the reference frequency point signal enters the receiving channel 102 by duplexer 104, more
To be specific：The FPGA101 controls the duplexer 104 to receive the reference frequency point signal, and the reference frequency point is believed
Number the receiving channel 102 is sent to, detects the receiving channel 102 and receive the reference frequency point signal.
Step 203, calculated according to the first uplink received power of the reference frequency point signal and default uplink received power
Estimate gain.
The FPGA101 is according to the first uplink received power of the reference frequency point signal detected and default up connects
Receive power calculation and estimate gain.Wherein, it is described estimate the first uplink received power that gain is the reference frequency point signal with it is pre-
If the poor opposite number of uplink received power.
Optionally, the default uplink received power can be the maximum of the power, i.e. base station of the reference frequency point signal
Transmission power subtracts the first preset value；Certainly, the default uplink received power can also be other preset values, in the present invention
It is not specifically limited.
The uplink receiving work(for the echo signal that receiving channel described in gain calibration receives is estimated described in step 204, basis
Rate.
The FPGA101 detects the echo signal that the receiving channel 102 receives after being calculated and estimating gain
Uplink received power, according to it is described estimate gain calibration described in the uplink receiving work(of echo signal that receives of receiving channel 102
Rate.In this manner it is possible to the existing design in base station is based on, it is abnormal in receiving channel in the case where not increasing any radio-frequency devices
When can to base station uplink received power carry out real time calibration, reduce cost and improve Measurement reliability.
Optionally, the uplink receiving for the echo signal that receiving channel described in gain calibration receives is estimated described in the basis
Power includes：Gain is estimated according to described and reference gain determines calibration-gain；The reception is calibrated according to the calibration-gain
The uplink received power for the echo signal that channel reception arrives.So, the FPGA101 cans adjust according to the calibration-gain
The uplink received power of the echo signal, the uplink received power of the echo signal to detecting compensate, the value of compensation
For the standard gain, that is, the uplink received power of the echo signal after calibrating is that the up of echo signal detected connects
Receive power and the standard gain and.
Further, gain is estimated described in the basis and reference gain determines that calibration-gain includes：
Be more than predetermined threshold value in the difference for estimating gain and the reference gain, show described in estimate gain bigger than normal,
Beyond predetermined threshold value, at this moment, it is necessary to by the standard gain replace with it is described estimate gain, i.e., described calibration-gain
Gain is estimated to be described；When the difference for estimating gain and the reference gain is less than or equal to the predetermined threshold value, show institute
State and estimate gain without departing from predetermined threshold value, at this moment, the calibration-gain is the reference gain, it is not necessary to replace with described estimate
Gain.
Optionally, in order to further verify the accuracy of the uplink received power after calibration, increasing is estimated described in the basis
After benefit and reference gain determine calibration-gain, methods described is further comprising the steps of：
Step B1, the reference frequency point signal is launched in the transmission channel, the frequency of the reference frequency point signal is in institute
In the frequency range for stating the receivable signal of receiving channel.
Step B2, when the receiving channel receives the reference frequency point signal, the reference frequency point signal is detected
Second uplink received power.
Step B3, the second uplink received power of the reference frequency point signal is calibrated according to the calibration-gain.
Step B4, the second uplink received power of the reference frequency point signal after calibration and the default uplink receiving
When power difference is less than or equal to preset difference value, the echo signal that the receiving channel receives is calibrated according to the calibration-gain
Uplink received power, here, the preset difference value are more than or equal to 0, example, and the preset difference value can be 4dB.
Pass through step B1-B4, it is possible to realize the second uplink received power to the reference frequency point signal after calibration
Checking, so as to improve measurement base station uplink received power accuracy.
In actual applications, as shown in figure 3, the handling process of the present embodiment method mainly includes the following steps that：
Step 301, in initial time, that is, before being dispatched from the factory in base station, in transmission channel transmitting reference frequency point signal S0。
Wherein, the reference frequency point signal S0Frequency in the frequency range of the receivable signal of receiving channel, it is described
State reference frequency point signal S0Power P0For the maximum transmission power P of base stationmaxSubtract 3dB, i.e. P0=Pmax- 3dB, it is described to state ginseng
Examine frequency signal S0Modulation system be single-tone CW modulation.
Step 302, in receiving channel receive the reference frequency point signal S0When, detect the reference frequency point signal S0's
Uplink received power P1。
Step 303, calculate the uplink received power P1Reference frequency point signal S is stated with described0Power P0Poor is opposite
Number, obtains reference gain Gp, i.e. Gp=-(P1-P0)=P0-P1, at this moment, the reference gain GpAs calibration-gain Gc, i.e. Gc=
Gp, and by the calibration-gain GcIt is saved in calibration table.
Step 304, in the running of base station, obtain the upstream noise power N of the receiving channel in real timem。
Step 305, calculate the upstream noise power NmWith default upstream noise power NtDifference, obtain threshold value
Thm, i.e. Thm=| Nm-Nt|。
Step 306, judge by the threshold value and predetermined threshold value whether the receiving channel is abnormal；Institute
State threshold T hmMore than predetermined threshold value ThpWhen, i.e. Thm>Thp, when determining base station receiving channel exception, perform step 307；
The threshold T hmLess than or equal to predetermined threshold value ThpWhen, i.e. Thm≤Thp, base station receiving channel normal operation is determined, is performed
Step 318；Here, the predetermined threshold value ThpCan be 4dB.
Step 307, when reaching predetermined time, launch the reference frequency point signal S in the transmission channel0, it is described pre-
If the moment is at the time of BTS service amount is less than pre-set business amount, such as 3:00 AM is to any instant between 4 points.
Step 308, in the receiving channel receive the reference frequency point signal S0When, detect the reference frequency point signal
S0Uplink received power P2。
Step 309, calculate the reference frequency point signal S0Uplink received power P2Reference frequency point signal S is stated with described0's
Power P0The opposite number of difference, obtains estimating gain Gm, i.e. Gm=-(P2-P0)=P0-P2。
Step 310, by estimating gain G described in judgementmWith reference gain GpDifference whether be more than predetermined threshold value G0Come true
The value of the fixed calibration-gain, gain G is estimated when describedmWith reference gain GpDifference be more than predetermined threshold value G0When, i.e., | Gm-
Gp|>G0, step 311 is performed, gain G is estimated when describedmWith the reference gain GpThe absolute value of difference is less than or equal to predetermined threshold value G0
When, i.e., | Gm-Gp|≤G0, perform 312.
Step 311, the calibration-gain GcGain G is estimated to be describedm, i.e. Gc=Gm, new calibration table is generated, performs step
Rapid 313.
Step 312, the calibration-gain GcFor the reference gain Gp, i.e. Gc=Gp, perform step 313.
Step 313, in order to further verify the uplink received power after the signal calibration received in the receiving channel
It is whether accurate, launch the reference frequency point signal S in the transmission channel0。
Step 314, in the receiving channel receive the reference frequency point signal S0When, detect the reference frequency point signal
S0Uplink received power P3。
Step 315, calculate the calibration-gain GcWith the uplink received power P of the reference frequency point signal3Sum, obtain
The reference frequency point signal S after calibration0Uplink received power, that is, calibration uplink received power Pc, i.e. Pc=P3+Gc。
Step 316, judge the reference frequency point signal S0Calibration uplink received power PcReference frequency point signal is stated with described
S0Power P0Whether equal the calibration uplink received power P determinedcCalibration it is whether accurate, when the reference frequency point believe
Number S0Calibration uplink received power PcReference frequency point signal S is stated with described0Power P0Difference when being more than preset difference value, i.e., |
Pc-P0|>X, step 317 is performed, as the reference frequency point signal S0Calibration uplink received power PcReference frequency point is stated with described
Signal S0Power P0Difference when being less than or equal to preset difference value, i.e., | Pc-P0|≤X, perform step 320；Here, it is described default
Difference can be 4dB.
Step 317, determine to the calibration uplink received power PcCalibration be it is accurate, at this moment, perform step 318.
The echo signal S that step 318, the detection receiving channel receivexUplink received power P4。
Step 319, calculate the calibration-gain GcWith the uplink received power P of the echo signal4Sum, described in output
The actual uplink receiving power P of echo signalx, i.e. Px=P4+Gc, return and perform step 304.
Step 320, determine the calibration uplink received power PcCalibration be not accurate, show other devices in base station
Exception is likely to occur, at this moment, to gateway system report and alarm, so as to artificial timely processing.
Embodiment 2
The embodiments of the invention provide a kind of base station uplink received power calibrating installation, as shown in figure 4, described device bag
Include：Judging unit 401, transmitter unit 402, detection unit 403, computing unit 404 and alignment unit 405, wherein,
The judging unit 401, for judging whether receiving channel is abnormal；
The transmitter unit 402, for when the judging unit 401 determines the receiving channel exception, leading in transmitting
Reference frequency point signal is launched in road, and the frequency of the reference frequency point signal can be in the range of receives frequency the receiving channel；
The detection unit 403, for receiving the reference of the transmitting of transmitter unit 402 in the receiving channel
During frequency signal, the first uplink received power of the reference frequency point signal is detected；
The computing unit 404, for detected according to the detection unit 403 the first of the reference frequency point signal
Uplink received power and default uplink received power, which calculate, estimates gain；
The alignment unit 405, described in estimating gain calibration described in being calculated according to the computing unit 404
The uplink received power for the echo signal that the receiving channel that detection unit 403 detects receives.
Optionally, the judging unit 401, the upstream noise power specifically for obtaining the receiving channel；According to institute
State upstream noise power and default upstream noise power calculation threshold value；When the threshold value is more than predetermined threshold value, institute is determined
State receiving channel exception.
Optionally, the alignment unit 405, specifically for estimating described in being calculated according to the computing unit 404
Gain and reference gain determine calibration-gain；Connect according to detecting the calibration-gain calibration detection unit 403
Receive the uplink received power for the echo signal that channel reception arrives.
Optionally, the alignment unit 405, specifically for estimating gain and the difference of the reference gain is more than described
Predetermined threshold value, the calibration-gain estimate gain to be described；Gain is estimated described and the difference of the reference gain is less than or equal to
During the predetermined threshold value, the calibration-gain is the reference gain.
Optionally, described device also includes authentication unit 406；
The transmitter unit 402, it is additionally operable to penetrating reference frequency point signal described in transmission channel hair；
The detection unit 403, it is additionally operable to receive the ginseng of the transmitting of transmitter unit 402 in the receiving channel
When examining frequency signal, the second uplink received power of the reference frequency point signal is detected；
The alignment unit 405, detected according to the calibration-gain calibration detection unit 403 described with reference to frequency
Second uplink received power of point signal；
The authentication unit 406, for judge the alignment unit 405 calibrate after the reference frequency point signal second
Whether uplink received power is with the default uplink received power difference in the range of preset difference value；
The alignment unit 405, specifically for the reference frequency point signal after the authentication unit 406 determines calibration
The second uplink received power and the default uplink received power difference in the range of preset difference value when, increased according to the calibration
Benefit calibrates the uplink received power for the echo signal that the receiving channel that the detection unit 403 detects receives
In actual applications, the judging unit 401 described in the present embodiment, transmitter unit 402, detection unit 403, calculating
Unit 404, alignment unit 405 and authentication unit 406 can be by the central processing units on the uplink received power calibrating installation of base station
(CPU), microprocessor (MPU), digital signal processor (DSP) or field programmable gate array (FPGA), modem etc.
The devices such as device realization are realized.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the shape of the embodiment in terms of the present invention can use hardware embodiment, software implementation or combination software and hardware
Formula.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more to use storage
The form for the computer program product that medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.).
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of base station uplink received power calibration method, it is characterised in that methods described includes：
When determining receiving channel exception, launch reference frequency point signal in transmission channel, the frequency of the reference frequency point signal is in institute
That states receiving channel can be in the range of receives frequency；
When the receiving channel receives the reference frequency point signal, the first uplink receiving of the reference frequency point signal is detected
Power；
Calculated according to the first uplink received power of the reference frequency point signal and default uplink received power and estimate gain；
According to it is described estimate gain calibration described in the uplink received power of echo signal that receives of receiving channel.
2. according to the method for claim 1, it is characterised in that the determination receiving channel includes extremely：
Obtain the upstream noise power of the receiving channel；
According to the upstream noise power and default upstream noise power calculation threshold value；
When the threshold value is more than predetermined threshold value, determine that the receiving channel is abnormal.
3. according to the method for claim 1, it is characterised in that receiving channel described in gain calibration is estimated described in the basis
The uplink received power of the echo signal received, including：
Gain is estimated according to described and reference gain determines calibration-gain；
The uplink received power for the echo signal that the receiving channel receives is calibrated according to the calibration-gain.
4. according to the method for claim 3, it is characterised in that gain is estimated described in the basis and reference gain determines school
Quasi- gain includes：
It is more than predetermined threshold value in the difference for estimating gain and the reference gain, the calibration-gain estimates increasing to be described
Benefit；
When the difference for estimating gain and the reference gain is less than or equal to the predetermined threshold value, the calibration-gain is described
Reference gain.
5. according to the method for claim 3, it is characterised in that gain is estimated described in the basis and reference gain determines school
After quasi- gain, methods described also includes：
Reference frequency point signal is being penetrated described in transmission channel hair；
When the receiving channel receives the reference frequency point signal, the second uplink receiving of the reference frequency point signal is detected
Power；
The second uplink received power of the reference frequency point signal is calibrated according to the calibration-gain；
Accordingly, the uplink received power that the echo signal that the receiving channel receives is calibrated according to the calibration-gain
Including：
Second uplink received power of the reference frequency point signal after calibration and the difference of the default uplink received power
During less than or equal to preset difference value, the uplink receiving for the echo signal that the receiving channel receives is calibrated according to the calibration-gain
Power.
6. a kind of base station uplink received power calibrating installation, it is characterised in that described device includes：
Judging unit, for judging whether receiving channel is abnormal；
Transmitter unit, for when the judging unit determines the receiving channel exception, launching reference frequency point in transmission channel
Signal, the frequency of the reference frequency point signal can be in the range of receives frequencies the receiving channel；
Detection unit, for when the receiving channel receives the reference frequency point signal that the transmitter unit is launched, examining
Survey the first uplink received power of the reference frequency point signal；
Computing unit, for the first uplink received power of the reference frequency point signal for being detected according to the detection unit and
Default uplink received power, which calculates, estimates gain；
Alignment unit, detected for detection unit described in estimating gain calibration described in being calculated according to the computing unit
The uplink received power of echo signal that receives of the receiving channel.
7. uplink received power calibrating installation in base station according to claim 6, it is characterised in that
The judging unit, the upstream noise power specifically for obtaining the receiving channel；According to the upstream noise power
With default upstream noise power calculation threshold value；When the threshold value is more than predetermined threshold value, determine that the receiving channel is abnormal.
8. device according to claim 6, it is characterised in that
The alignment unit, determined specifically for estimating gain and reference gain described in being calculated according to the computing unit
Calibration-gain；The echo signal that the receiving channel detected according to the calibration-gain calibration detection unit receives
Uplink received power.
9. device according to claim 8, it is characterised in that
The alignment unit, it is described specifically for being more than predetermined threshold value in the difference for estimating gain and the reference gain
Calibration-gain estimates gain to be described；It is less than or equal to the predetermined threshold value in the difference for estimating gain and the reference gain
When, the calibration-gain is the reference gain.
10. device according to claim 8, it is characterised in that described device also includes authentication unit；
The transmitter unit, it is additionally operable to penetrating reference frequency point signal described in transmission channel hair；
The detection unit, it is additionally operable to receive the reference frequency point signal of the transmitter unit transmitting in the receiving channel
When, detect the second uplink received power of the reference frequency point signal；
The alignment unit, the of the reference frequency point signal that the detection unit detects is calibrated according to the calibration-gain
Two uplink received powers；
The authentication unit, for judging the second uplink receiving work(of the reference frequency point signal after alignment unit calibration
Whether rate is with the default uplink received power difference in the range of preset difference value；
The alignment unit, specifically for determining that second of the reference frequency point signal after calibration is up in the authentication unit
When receiving power and the default uplink received power difference are in the range of preset difference value, according to calibration-gain calibration
The uplink received power for the echo signal that the receiving channel that detection unit detects receives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610388531.1A CN107466049A (en) | 2016-06-02 | 2016-06-02 | A kind of base station uplink received power calibration method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610388531.1A CN107466049A (en) | 2016-06-02 | 2016-06-02 | A kind of base station uplink received power calibration method and device |
Publications (1)
| Publication Number | Publication Date |
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| CN107466049A true CN107466049A (en) | 2017-12-12 |
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|---|---|---|---|
| CN201610388531.1A Pending CN107466049A (en) | 2016-06-02 | 2016-06-02 | A kind of base station uplink received power calibration method and device |
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| Country | Link |
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| CN (1) | CN107466049A (en) |
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2016
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Application publication date: 20171212 |