CN102480329A - Base station test method and equipment - Google Patents
Base station test method and equipment Download PDFInfo
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- CN102480329A CN102480329A CN2010105602076A CN201010560207A CN102480329A CN 102480329 A CN102480329 A CN 102480329A CN 2010105602076 A CN2010105602076 A CN 2010105602076A CN 201010560207 A CN201010560207 A CN 201010560207A CN 102480329 A CN102480329 A CN 102480329A
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Abstract
The invention discloses a base station test method and equipment. The method comprises the following steps that: phases between a radio frequency unit and an intelligent antenna coupling disc are calibrated, so that consistency of phase differences of all channels is realized; in covering ranges of antennas of the base station, calculation phase difference values of from reception positions at angles needing to carry out testing to all antennas are determined; when a signal source sends signals and a frequency spectrograph receives signals, the calculation phase difference values at all the angle are compensated to phases of all reception channels and all sending channels of the base station and then signal powers on the frequency spectrograph are obtained when the signal source sends signals at the angles; powers that are obtained according to the angles and the signal powers at the angles are used as downlink signal forming results. According to the invention, an external interference signal, an environmental reflection signal and an environmental refraction signal can be avoided; and measurement precision is high and different corresponding relations between measurement positions and signal powers are accurate.
Description
Technical field
The present invention relates to communication equipment, particularly a kind of base station test method and equipment.
Background technology
Intelligent antenna technology is one of advantage of TD (Time Division, time-division) Modular Communications System, and smart antenna can improve the gain that receives signal, improves the gain of downstream signal and reduces interfering with each other between the user through the figuration algorithm.
Existing test intelligent antenna technology mainly contains:
1) adopts channel simulator, different time delay (or phase difference) is set in each radio-frequency channel;
2) adopt two radio frequency unit butt joints, receipts, another is in the phase place of each road signal of change of making a start;
3) do operational trials with the terminal in antenna coverage areas;
Existing metering system 1) shortcoming is that testing apparatus is complicated, and cost is high; And need calibration before using, efficient is low;
Existing metering system 2) shortcoming is to carry out a large amount of transformations to existing equipment, and butt joint can not guarantee that each road is consistent;
Existing metering system 3) shortcoming is the influence that receives external environment, such as the reflected signal and the interference signal of object on every side.
Summary of the invention
The technical problem that the present invention solved is to provide a kind of base station test method and equipment, specifically comprises: the method for testing and the equipment of the method for testing of a kind of base station AOA method of testing and equipment, a kind of base station intelligent antenna broadcasting figuration and equipment, a kind of base station intelligent antenna user downstream signal figuration.
A kind of AOA measuring system is provided in the embodiment of the invention, has comprised: smart antenna coupling disc, power splitter, signal source, wherein:
The smart antenna coupling disc is used for input radio frequency signal after antenna input port links to each other with the radio frequency interface of base station RRU;
Power splitter; A port links to each other with the calibration port of smart antenna coupling disc; Two ports along separate routes, a port links to each other with the calibration mouth of base station RRU, and a port links to each other with signal source; Be used for the time making the output signal of the calibration mouth of base station RRU can arrive the smart antenna coupling disc in calibration, the output signal that when test, makes signal source is dealt into each radio frequency interface of RRU through the calibration port of smart antenna coupling disc;
Signal source links to each other with power splitter, is used for signal is imported power splitter.
The method of testing of AOA test macro is provided in the embodiment of the invention, has comprised the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent.
A kind of AOA method of testing is provided in the embodiment of the invention, has comprised the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent;
In the antenna for base station coverage, confirm that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
At the signal source proceed-to-send signal, when the base station begins to receive signal, the said calculating phase difference value compensation under each angle to the phase place of each receive path of base station, is obtained the AOA result of calculation of base station under this angle.
A kind of AOA testing equipment is provided in the embodiment of the invention, has comprised:
Calibration module is used for radio frequency unit is calibrated to phase place between the smart antenna coupling disc, makes the phase difference of each passage reach consistent;
Computing module is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
Acquisition module is used at the signal source proceed-to-send signal, when the base station begins to receive signal, and the said calculating phase difference value compensation under each angle to the phase place of each receive path of base station, is obtained the AOA result of calculation of base station under this angle.
A kind of test macro of smart antenna broadcasting figuration is provided in the embodiment of the invention, has comprised: smart antenna coupling disc, power splitter, frequency spectrograph, wherein:
The smart antenna coupling disc is used for input radio frequency signal after antenna input port links to each other with the radio frequency interface of base station RRU;
Power splitter; A port links to each other with the calibration port of smart antenna coupling disc; Two ports along separate routes, a port links to each other with the calibration mouth of base station RRU, and a port links to each other with frequency spectrograph; Be used for when calibration, making the output signal of the calibration mouth of base station RRU can arrive the smart antenna coupling disc, be dealt into frequency spectrograph after the radiofrequency signal merging with each radio frequency interface of RRU when test;
Frequency spectrograph links to each other with power splitter, is used to detect the signal of power splitter input.
The method of testing of broadcasting figuration test macro is provided in the embodiment of the invention, has comprised the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent.
A kind of method of testing of smart antenna broadcasting figuration is provided in the embodiment of the invention, has comprised the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent;
In the antenna for base station coverage, confirm that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
Begin to send broadcast singal in the base station, when frequency spectrograph begins to receive signal, the said calculating phase difference value compensation under each angle to the phase place of each sendaisle of base station, obtained under this angle and sent the broadcasting power on the broadcast singal time-frequency spectrometer in the base station;
The power that to confirm according to the broadcasting power under angle and this angle is as broadcasting figuration result.
A kind of testing equipment of smart antenna broadcasting figuration is provided in the embodiment of the invention, has comprised:
Calibration module is used for radio frequency unit is calibrated to phase place between the smart antenna coupling disc, makes the phase difference of each passage reach consistent;
Computing module is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
Acquisition module; Be used for beginning to send broadcast singal in the base station, when frequency spectrograph begins to receive signal; With the compensation of the said calculating phase difference value under each angle to the phase place of each sendaisle of base station; Obtain under this angle in the base station and send the broadcasting power on the broadcast singal time-frequency spectrometer, the power that will confirm according to the broadcasting power under angle and this angle is as broadcasting figuration result.
A kind of test macro of smart antenna user downstream signal figuration is provided in the embodiment of the invention, has comprised: smart antenna coupling disc, power splitter, circulator, frequency spectrograph, signal source, wherein:
The smart antenna coupling disc is used for input radio frequency signal after antenna input port links to each other with the radio frequency interface of base station RRU;
Power splitter; A port links to each other with the calibration port of smart antenna coupling disc; Two ports along separate routes; A port links to each other with the calibration mouth of base station RRU, and a port links to each other with circulator, is used for when calibration, making the output signal of the calibration mouth of base station RRU can arrive the smart antenna coupling disc; The output signal that the time makes signal source in test is dealt into each radio frequency interface of RRU through the calibration port of smart antenna coupling disc, is dealt into frequency spectrograph after when test, the radiofrequency signal of each radio frequency interface of RRU being merged;
Circulator links to each other with frequency spectrograph, links to each other with signal source, is used for the spectrum of input signal appearance with the power splitter input, and the signal that signal source produces is imported power splitter.
The method of testing of user's downstream signal figuration test macro is provided in the embodiment of the invention, has comprised the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent.
A kind of method of testing of smart antenna user downstream signal figuration is provided in the embodiment of the invention, has comprised the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent;
In the antenna for base station coverage, confirm that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
At the signal source proceed-to-send signal, when frequency spectrograph begins to receive signal, the said calculating phase difference value compensation under each angle to the phase place of each sendaisle of base station, is obtained the signal power on signal source proceed-to-send signal time-frequency spectrometer under this angle;
The power that to confirm according to the signal power under angle and this angle is as downstream signal figuration result.
A kind of testing equipment of smart antenna user downstream signal figuration is provided in the embodiment of the invention, has comprised:
Calibration module is used for radio frequency unit is calibrated to phase place between the smart antenna coupling disc, makes the phase difference of each passage reach consistent;
Computing module is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
Acquisition module; Be used at the signal source proceed-to-send signal, when frequency spectrograph begins to receive signal; With the compensation of the said calculating phase difference value under each angle to the phase place of each sendaisle of base station; Obtain the signal power on signal source proceed-to-send signal time-frequency spectrometer under this angle, the power that will confirm according to the signal power under angle and this angle is as downstream signal figuration result.
Provide in the embodiment of the invention.
Beneficial effect of the present invention is following:
Visible by above-mentioned execution mode; In the technical scheme that the embodiment of the invention provides; Because all adopted the wired connection mode between RRU and each the test function entity, and analog wireless signals ground transmitting-receiving on this circuit, external interference signal and Ambient and refraction signal therefore avoided;
Owing to use the receiving position under the angle of the needs test calculate to compensate the phase place on each circuit to the calculating phase difference value of each antenna, so certainty of measurement is high, and different measuring positions and signal power corresponding relation are accurate;
Since use be transmitting-receiving position under the angle of the needs test that calculates to the calculating phase difference value of each antenna, therefore can compensate uplink and downlink respectively, coverage effect figure completely can draw;
Description of drawings
Fig. 1 is a smart antenna coupling disc structural representation in the embodiment of the invention;
Fig. 2 receives and dispatches position and antenna array relative position sketch map in the smart antenna overlay area in the embodiment of the invention;
Fig. 3 is an AOA measuring system structural representation in the embodiment of the invention;
Fig. 4 is the method for testing implementing procedure sketch map of test macro in the embodiment of the invention;
Fig. 5 is an AOA method of testing implementing procedure sketch map in the embodiment of the invention;
Fig. 6 is an AOA testing equipment structural representation in the embodiment of the invention;
Fig. 7 is the test system structure sketch map of base station intelligent antenna broadcasting figuration in the embodiment of the invention;
Fig. 8 is the method for testing implementing procedure sketch map of the test macro of broadcasting figuration in the embodiment of the invention;
Fig. 9 is the method for testing implementing procedure sketch map of smart antenna broadcasting figuration in the embodiment of the invention;
Figure 10 is the testing equipment structural representation of smart antenna broadcasting figuration in the embodiment of the invention;
Figure 11 is the test system structure sketch map of smart antenna user downstream signal figuration in the embodiment of the invention;
Figure 12 is the method for testing implementing procedure sketch map of the test macro of user's downstream signal figuration in the embodiment of the invention;
Figure 13 is the method for testing implementing procedure sketch map of smart antenna user downstream signal figuration in the embodiment of the invention;
Figure 14 is the testing equipment structural representation of smart antenna user downstream signal figuration in the embodiment of the invention.
Embodiment
Describe below in conjunction with the accompanying drawing specific embodiments of the invention.
At first smart antenna coupling disc, circulator, power splitter are described:
Fig. 1 is smart antenna coupling disc structural representation, and is as shown in the figure, and the smart antenna coupling disc is made up of 9 input ports and 8 output ports.9 input ports comprise: 8 I/O port (RF connector)+1cal Port forms.8 output ports are made up of 8 Antenna element RF connector port.
The effect of circulator is: supposes to lead to port 2 by port one from 3 port output signals, but obstructed by port 2 to port one,, reverse obstructed along hoop for logical, by that analogy; With Figure 11 is example, and its effect is that frequency spectrograph can be accepted the signal that coupling disc is sent out, but can not receive the signal of signal source, and the signal of signal source can be dealt into coupling disc, but the signal of coupling disc can not be dealt into signal source.
Power splitter is the power splitter of one-to-two, and wherein, a mouth links to each other with coupling disc calibration mouth; Two mouths along separate routes; One links to each other with the calibration mouth of base station RRU; The RRU calibrating signal can arrive coupling disc when being used to calibrate; Another links to each other with circulator, is dealt into each radio frequency interface of RRU to the calibration mouth of signal source signal through coupling disc when being used to test, and is dealt into frequency spectrograph after combining the radiofrequency signal of each radio frequency interface of RRU simultaneously.
Secondly the base station calibration process is described:
The antenna calibration process will be carried out after setting up carrier wave in the base station.Antenna calibration is divided into sending calibration and receiving to be calibrated.When sending calibration; The calibration path is in accepting state; Active channel is in transmit status; The calibrating sequence that the utilization of calibration path receives calculates the phase place and the amplitude error of each path; And generation antenna factor
is received when calibrating; The calibration path is in transmit status; Active channel is in accepting state, and each active channel utilization receives calibrating sequence its phase place of calculating and the amplitude that the calibration path sends, and produces antenna factor
RRU (Radio Remote Unit, Remote Radio Unit) is inner each the passage base band data sent out from BBU (BaseBand Unit, baseband processing unit) and the antenna factor F of respective channel
Send outMultiply each other, be transformed into radiofrequency signal afterwards and send by radio frequency interface; Above-below direction transfers after the baseband signal signal of radio frequency interface to each passage antenna factor F
ReceiveMultiply each other, send to BBU.Through said process, it is consistent that the signal phase that is input to each radio-frequency channel in the RRU from the coupling disc calibration interface and amplitude just are compensated for as, and the signal attenuation from each radio-frequency channel to the coupling disc calibration interface simultaneously also is compensated for as consistent with phase deviation.
Then the algorithm of RRU is revised and is described:
In force; Can issue one group of RRU through debugging PC (Personal Computer, PC) sends out the compensation for calibrating errors factor
and receives and to be replaced by new calibration factor after the compensation for calibrating errors factors
and calibration factor multiply each other with one group:
With
From the result of complex multiplication see be send out at each passage, contracture has not compensated phase factor
At last the schematic diagram that calculates phase difference value is introduced.
Fig. 2 is transmitting-receiving position and an antenna array relative position sketch map in the smart antenna overlay area, in relation as shown in the figure, has:
1, when the distance of receiving position and antenna is far away, approximately think that the line of receiving position and each bay is parallel lines, establishing and receiving the position is d1～d8 to the distance of each antenna.
2, the phase difference between the calculating array element:
The wavelength of known signal is λ, and receiving position and antenna tangent line angle are α, and antenna distance is δ, and the phase difference between each antenna calculates through following formula
360*(dn-d1)/λ (n＝2～8)
Wherein, dn-d1=(n-1) * δ * cos (α).
3, in like manner, when the distance of sending out position and antenna is far away, is similar to and thinks that the line of receiving position and each bay is parallel lines, sending out position and antenna tangent line angle is β, and the phase difference between each antenna calculates through following formula:
360*(dn-d1)/λ (n＝2～8)
Wherein, dn-d1=(n-1) * δ * cos (β).
Test in the face of AOA, broadcasting figuration, downstream signal figuration describes down.
One, utilize RRU to verify up AOA (angle-Of-Arrival-LCR, arrival bearing user measures).
Fig. 3 is AOA measuring system structural representation, and is as shown in the figure, can comprise in the system: smart antenna coupling disc 301, power splitter 302, circulator 303, signal source 304, wherein:
The smart antenna coupling disc is used for input radio frequency signal after antenna input port links to each other with the radio frequency interface of base station RRU;
Power splitter; A port links to each other with the calibration port of smart antenna coupling disc; Two ports along separate routes, a port links to each other with the calibration mouth of base station RRU, and a port links to each other with signal source; Be used for the time making the output signal of the calibration mouth of base station RRU can arrive the smart antenna coupling disc in calibration, the output signal that when test, makes signal source is dealt into each radio frequency interface of RRU through the calibration port of smart antenna coupling disc;
Signal source links to each other with power splitter, is used for signal is imported power splitter.
Among the embodiment that illustrates among the figure, signal source links to each other with circulator after circulator is exported signal, but in force also can be without circulator; Among the figure be that example is the utilization of structure in the AOA test that comprises circulator in order better to introduce with the circulator.
In the enforcement, the interface that the power splitter right side connects the antenna coupling disc is also to be in the same place left side RRU calibration mouthful signal with the signal of importing through circulator, changes a kind of saying, is exactly in calibration process, as long as connect together the calibration mouth of RRU and coupling disc; During test, as long as connect together the calibration mouth of the signal of circulator and coupling disc; Two functions for above in a test environment, reaching just are divided into two-way to the signal of coupling disc with power splitter.
In the enforcement, in test macro, can further include:
Calculation element is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna.
In the enforcement, in test macro, can further include:
Compensation arrangement is used at the signal source proceed-to-send signal, when the base station begins to receive signal, with the phase place of said calculating phase difference value compensation to each receive path of base station under each angle.
In the enforcement, in test macro, can further include:
Deriving means, be used for the compensation of the said calculating phase difference value under each angle to the phase place of each receive path of base station, obtain the AOA result of calculation of base station under this angle.
In the enforcement, in test macro, can further include:
Comparison means is used for confirming in the angle that the AOA result of calculation under a certain angle compensates when under this angle, measuring whether correct the AOA of base station under this angle calculates according to the base station.
Describe in the face of the method execution mode that utilizes test macro to test down.
Fig. 4 is the method for testing implementing procedure sketch map of test macro, and is as shown in the figure, can comprise the steps:
In this step, when test, the base station can be calibrated to phase place between the smart antenna coupling disc radio frequency unit earlier, makes the phase difference of each passage reach consistent.
In the enforcement, can further include:
In this step, can calculate and in antenna footprint, send the phase difference value of position under all angles that need test to each antenna, concrete, can be recorded as form to difference.
In the enforcement, can further include:
In the enforcement, can further include:
In the enforcement, can further include:
Step 405, the angle that compensates when measuring in the AOA result of calculation under a certain angle and under this angle according to the base station through comparison means confirm whether correct the AOA of base station under this angle calculates.
In the practical implementation, in step 403 opening signal source, when the base station begins to receive; Each receive path of form compensation according to step 402; Obtain AOA result of calculation from the base station in step 404, in the angle contrast of step 405 point corresponding, judge whether correct then with compensation.Only need the data of all angles of traversal, can verify just whether AOA calculates correct.
Concrete, angle is meant that the transmission position of compensating analog and antenna tangent line angle are α, after choosing different angles, in the enforcement can with 1 ° be step-length, calculate and in antenna footprint, send the phase difference value that each antenna is arrived in the position under all angles that need test.
In above-mentioned implementation process; The purpose of compensation of phase difference is the test situation of wanting simulation test point far away; Because the distance of user and antenna is far away when practical application, and microwave dark room can not reach such distance, so the simulation through this mode realizes the test that base station AOA is whether correct.
And in concrete test, at first radio frequency unit is calibrated to phase place between the smart antenna coupling disc, can simulate test point test situation far away like this; Transmission position under definite then all angles that need test is to the calculating phase difference value of each antenna; After the phase difference compensation under a certain angle was advanced each receive path of base station, the utmost point signal at a distance that in fact just can acquire under this angle sent situation.
Based on same inventive concept; A kind of AOA method of testing, a kind of AOA testing equipment also are provided in the embodiment of the invention; Because these schemes principle of dealing with problems and AOA measuring system, the method for testing that reaches this system are similar; Therefore the enforcement of these schemes can repeat part and repeat no more referring to the enforcement of aforementioned schemes.
Fig. 5 is AOA method of testing implementing procedure sketch map, and is as shown in the figure, can comprise the steps: during test
Step 501, radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent;
Step 502, in the antenna for base station coverage, confirm that receiving position under all angles that need test is to the calculating phase difference value of each antenna;
Step 503, at the signal source proceed-to-send signal, when the base station begins to receive signal, the compensation of the said calculating phase difference value under each angle to the phase place of each receive path of base station, is obtained the AOA result of calculation of base station under this angle.
In the enforcement, can further include:
Step 504, the angle that compensates when measuring in the AOA result of calculation under a certain angle and under this angle according to the base station confirm whether correct the AOA of base station under this angle calculates.
Fig. 6 is AOA testing equipment structural representation, and is as shown in the figure, can comprise in the equipment:
In the enforcement, can further include in the equipment:
Two, utilize RRU checking downlink broadcast figuration effect.
Fig. 7 is for the test system structure sketch map of base station intelligent antenna broadcasting figuration, and is as shown in the figure, can comprise in the system: smart antenna coupling disc 701, power splitter 702, circulator 703, frequency spectrograph 704, wherein:
The smart antenna coupling disc is used for input radio frequency signal after antenna input port links to each other with the radio frequency interface of base station RRU;
Power splitter; A port links to each other with the calibration port of smart antenna coupling disc; Two ports along separate routes, a port links to each other with the calibration mouth of base station RRU, and a port links to each other with frequency spectrograph; Be used for when calibration, making the output signal of the calibration mouth of base station RRU can arrive the smart antenna coupling disc, be dealt into frequency spectrograph after the radiofrequency signal merging with each radio frequency interface of RRU when test;
Frequency spectrograph links to each other with power splitter, is used to detect the signal of power splitter input.
Among the embodiment that illustrates among the figure, after linking to each other with circulator, frequency spectrograph receives circulator output signal, but in force also can be without circulator; Among the figure be that example is the utilization of structure in the test of broadcasting figuration that comprises circulator in order better to introduce with the circulator.
In the enforcement, in test macro, can further include:
Calculation element is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna.
In the enforcement, in test macro, can further include:
Compensation arrangement is used for beginning to send broadcast singal in the base station, when frequency spectrograph begins to receive signal, with the phase place of said calculating phase difference value compensation to each sendaisle of base station under each angle.
In the enforcement, in test macro, can further include:
Deriving means; Be used for the compensation of the said calculating phase difference value under each angle to the phase place of each sendaisle of base station; Obtain under this angle in the base station and send the broadcasting power on the broadcast singal time-frequency spectrometer, the power that will confirm according to the broadcasting power under angle and this angle is as broadcasting figuration result.
In the enforcement, in test macro, can further include:
Comparison means is used for confirming according to the broadcasting figuration result and the theoretic broadcasting figuration result of test whether the broadcasting figuration is correct.
Describe in the face of the method execution mode that utilizes test macro to test down.
Fig. 8 is for the method for testing implementing procedure sketch map of the test macro of broadcasting figuration, and is as shown in the figure, can comprise the steps:
In this step, when test, the base station can be calibrated to phase place between the smart antenna coupling disc radio frequency unit earlier, makes the phase difference of each passage reach consistent.
In the enforcement, can further include:
In this step, can calculate in antenna footprint under all angles that need test receiving position to the phase difference value of each antenna, concrete, can be recorded as form to difference.
In the enforcement, can further include:
In the enforcement, can further include:
In the enforcement, can further include:
In the practical implementation, open frequency spectrograph, when the base station begins to send broadcast singal,, write down the signal power of frequency spectrograph afterwards according to each sendaisle of form compensation of step 802 in step 803.Travel through the data of all angles, according to the angle coordinate power diagram that draws.The figure that draws is broadcasting figuration result.With the expected results contrast, can judge whether the broadcasting figuration is correct then.
Concrete, angle is meant that the receiving position of simulation and antenna tangent line angle are α, after choosing different angles, in the enforcement can with 1 ° be step-length, calculate in antenna footprint the phase difference value that receiving position under all angles that need test arrives each antenna.
In above-mentioned implementation process; The purpose of adjustment phase difference is the test situation of wanting simulation test point far away; Because the distance of user and antenna is far away when practical application; And microwave dark room can not reach such distance, therefore realizes the test of base station intelligent antenna broadcasting figuration through the simulation of this mode.
And in concrete test, at first radio frequency unit is calibrated to phase place between the smart antenna coupling disc, can simulate test point test situation far away like this; Confirm that then the receiving position under all angles that need test arrives the calculating phase difference value of each antenna; After the phase difference compensation under a certain angle is advanced each sendaisle of base station, in fact just can acquire the utmost point signal reception condition at a distance under this angle.
Based on same inventive concept; A kind of method of testing of smart antenna broadcasting figuration, the testing equipment of a kind of smart antenna broadcasting figuration also are provided in the embodiment of the invention; Because the test macro of these schemes principle of dealing with problems and smart antenna broadcasting figuration, the method for testing that reaches this system are similar; Therefore the enforcement of these schemes can repeat part and repeat no more referring to the enforcement of aforementioned schemes.
Fig. 9 is for the method for testing implementing procedure sketch map of smart antenna broadcasting figuration, and is as shown in the figure, can comprise the steps: during test
In the enforcement, can further include:
Figure 10 is for the testing equipment structural representation of smart antenna broadcasting figuration, and is as shown in the figure, can comprise in the equipment:
In the enforcement, can further include in the equipment:
Three, utilize the effect of RRU checking user downstream signal figuration.
Figure 11 is the test system structure sketch map of smart antenna user downstream signal figuration, and is as shown in the figure, can comprise in the system: smart antenna coupling disc 1101, power splitter 1102, circulator 1103, frequency spectrograph 1104, signal source 1105, wherein:
The smart antenna coupling disc is used for input radio frequency signal after antenna input port links to each other with the radio frequency interface of base station RRU;
Power splitter; A port links to each other with the calibration port of smart antenna coupling disc; Two ports along separate routes; A port links to each other with the calibration mouth of base station RRU, and a port links to each other with circulator, is used for when calibration, making the output signal of the calibration mouth of base station RRU can arrive the smart antenna coupling disc; The output signal that the time makes signal source in test is dealt into each radio frequency interface of RRU through the calibration port of smart antenna coupling disc, is dealt into frequency spectrograph after when test, the radiofrequency signal of each radio frequency interface of RRU being merged;
Circulator links to each other with frequency spectrograph, links to each other with signal source, is used for the spectrum of input signal appearance with the power splitter input, and the signal that signal source produces is imported power splitter.
In the enforcement, in test macro, can further include:
Calculation element is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna.
In the enforcement, in test macro, can further include:
Compensation arrangement is used for sending signal in signal source, when frequency spectrograph receives signal, the said calculating phase difference value under each angle being compensated to each receive path of base station and the phase place of each sendaisle.
In the enforcement, in test macro, can further include:
Deriving means; Be used for after phase place each receive path of the compensation of the said calculating phase difference value under each angle to base station and each sendaisle; Obtain under this angle in signal source and send the signal power on the signal time-frequency spectrometer, the power that will confirm according to the signal power under angle and this angle is as downstream signal figuration result.
In the enforcement, when testing, its process also can be expressed as:
Calculating needs the phase difference of test angle
For (all angles)
{
The compensation receive path
For (all angles)
{ compensation sendaisle
Obtain power from frequency spectrograph
}
Figuration figure under the corresponding up angle of drawing
The contrast notional result judges whether correct
}
Draw figuration result under all angles
In the enforcement, in test macro, can further include:
Comparison means is used for confirming according to the downstream signal figuration result and the theoretic downstream signal figuration result of test whether the downstream signal figuration is correct.
Describe in the face of the method execution mode that utilizes test macro to test down.
Figure 12 is the method for testing implementing procedure sketch map of the test macro of user's downstream signal figuration, and is as shown in the figure, can comprise the steps:
In this step, when test, the base station can be calibrated to phase place between the smart antenna coupling disc radio frequency unit earlier, makes the phase difference of each passage reach consistent.
In the enforcement, can further include:
In this step, can calculate in antenna footprint under all angles that need test receiving position to the phase difference value of each antenna, concrete, can be recorded as form to difference.
In the enforcement, can further include:
In the enforcement, can further include:
In the enforcement, can further include:
In the practical implementation, in step 1203 opening signal source, the base station begins to receive, each sendaisle of class value compensation in the form of selection step 1202; And open frequency spectrograph, according to each sendaisle of form compensation of step 1202, the signal power of record frequency spectrograph; Repeat the record had a few up to accomplishing; According to the angle coordinate power diagram that draws.The figure that draws is broadcasting figuration result.Whether compare with notional result then, it is correct to judge the downstream signal figuration.
Concrete, angle is meant that the receiving position of simulation and antenna tangent line angle are α, after choosing different angles, in the enforcement can with 1 ° be step-length, calculate in antenna footprint the phase difference value that receiving position under all angles that need test arrives each antenna.
In above-mentioned implementation process; The purpose of adjustment phase difference is the test situation of wanting simulation test point far away; Because the distance of user and antenna is far away when practical application; And microwave dark room can not reach such distance, therefore realizes the test of base station intelligent antenna broadcasting figuration through the simulation of this mode.
And in concrete test, at first radio frequency unit is calibrated to phase place between the smart antenna coupling disc, can simulate test point test situation far away like this; Confirm that then the receiving position under all angles that need test arrives the calculating phase difference value of each antenna; After the phase difference compensation under a certain angle is advanced each sendaisle of base station, in fact just can acquire the utmost point signal reception condition at a distance under this angle.
Based on same inventive concept; A kind of method of testing of smart antenna user downstream signal figuration, a kind of testing equipment of smart antenna user downstream signal figuration also are provided in the embodiment of the invention; Because the test macro of these schemes principle of dealing with problems and smart antenna user downstream signal figuration, the method for testing that reaches this system are similar; Therefore the enforcement of these schemes can repeat part and repeat no more referring to the enforcement of aforementioned schemes.
Figure 13 is the method for testing implementing procedure sketch map of smart antenna user downstream signal figuration, and is as shown in the figure, can comprise the steps: during test
Step 1301, radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent;
In the enforcement, can further include:
Figure 14 is the testing equipment structural representation of smart antenna user downstream signal figuration, and is as shown in the figure, can comprise in the equipment:
In the enforcement, can further include in the equipment:
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when embodiment of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
Visible by above-mentioned execution mode; In the technical scheme that the embodiment of the invention provides; Because all adopted the wired connection mode between RRU and each the test function entity, and analog wireless signals ground transmitting-receiving on this circuit, external interference signal and Ambient and refraction signal therefore avoided;
Owing to use the receiving position under the angle of the needs test calculate to compensate the phase place on each circuit to the calculating phase difference value of each antenna, so certainty of measurement is high, and different measuring positions and signal power corresponding relation are accurate;
Since use be transmitting-receiving position under the angle of the needs test that calculates to the calculating phase difference value of each antenna, therefore can compensate uplink and downlink respectively, coverage effect figure completely can draw;
Since TD-LTE (TD-SCDMA Long Term Evolution; The TD-SCDMA Long Term Evolution) signal of base station is the time-division; The frequency of uplink and downlink signal is identical; So it is identical that the channel of spatial transmission can be thought, so the technical scheme that provides in the embodiment of the invention also can be used for the TD-LTE base station.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (42)
1. arrival bearing user measures the AOA measuring system, it is characterized in that, comprising: smart antenna coupling disc, power splitter, signal source, wherein:
The smart antenna coupling disc is used for input radio frequency signal after antenna input port links to each other with the radio frequency interface of base station RRU;
Power splitter; A port links to each other with the calibration port of smart antenna coupling disc; Two ports along separate routes, a port links to each other with the calibration mouth of base station RRU, and a port links to each other with signal source; Be used for the time making the output signal of the calibration mouth of base station RRU can arrive the smart antenna coupling disc in calibration, the output signal that when test, makes signal source is dealt into each radio frequency interface of RRU through the calibration port of smart antenna coupling disc;
Signal source links to each other with power splitter, is used for signal is imported power splitter.
2. test macro as claimed in claim 1 is characterized in that, further comprises:
Calculation element is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna.
3. test macro as claimed in claim 2 is characterized in that, further comprises:
Compensation arrangement is used at the signal source proceed-to-send signal, when the base station begins to receive signal, with the phase place of said calculating phase difference value compensation to each receive path of base station under each angle.
4. test macro as claimed in claim 3 is characterized in that, further comprises:
Deriving means, be used for the compensation of the said calculating phase difference value under each angle to the phase place of each receive path of base station, obtain the AOA result of calculation of base station under this angle.
5. test macro as claimed in claim 4 is characterized in that, further comprises:
Comparison means is used for confirming in the angle that the AOA result of calculation under a certain angle compensates when under this angle, measuring whether correct the AOA of base station under this angle calculates according to the base station.
6. like the method for testing of the arbitrary said test macro of claim 1 to 5, it is characterized in that, comprise the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent.
7. method as claimed in claim 6 is characterized in that, further comprises:
In the antenna for base station coverage, confirm that through calculation element the receiving position under all angles that need test arrives the calculating phase difference value of each antenna.
8. method as claimed in claim 7 is characterized in that, further comprises:
At the signal source proceed-to-send signal, when the base station begins to receive signal, with the phase place of compensation arrangement with said calculating phase difference value compensation to each receive path of base station under each angle.
9. method as claimed in claim 8 is characterized in that, further comprises:
With the compensation of the said calculating phase difference value under each angle to the phase place of each receive path of base station, obtain the AOA result of calculation of base station under this angle.
10. method as claimed in claim 9 is characterized in that, further comprises:
The angle that compensates when measuring in the AOA result of calculation under a certain angle and under this angle according to the base station through comparison means confirms whether correct the AOA of base station under this angle calculates.
11. an AOA method of testing is characterized in that, comprises the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent;
In the antenna for base station coverage, confirm that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
At the signal source proceed-to-send signal, when the base station begins to receive signal, the said calculating phase difference value compensation under each angle to the phase place of each receive path of base station, is obtained the AOA result of calculation of base station under this angle.
12. method as claimed in claim 11 is characterized in that, further comprises:
The angle that compensates when measuring in the AOA result of calculation under a certain angle and under this angle according to the base station confirms whether correct the AOA of base station under this angle calculates.
13. an AOA testing equipment is characterized in that, comprising:
Calibration module is used for radio frequency unit is calibrated to phase place between the smart antenna coupling disc, makes the phase difference of each passage reach consistent;
Computing module is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
Acquisition module is used at the signal source proceed-to-send signal, when the base station begins to receive signal, and the said calculating phase difference value compensation under each angle to the phase place of each receive path of base station, is obtained the AOA result of calculation of base station under this angle.
14. equipment as claimed in claim 13 is characterized in that, further comprises:
Comparison module is used for confirming in the angle that the AOA result of calculation under a certain angle compensates when under this angle, measuring whether correct the AOA of base station under this angle calculates according to the base station.
15. the test macro of a smart antenna broadcasting figuration is characterized in that, comprising: smart antenna coupling disc, power splitter, frequency spectrograph, wherein:
The smart antenna coupling disc is used for input radio frequency signal after antenna input port links to each other with the radio frequency interface of base station RRU;
Power splitter; A port links to each other with the calibration port of smart antenna coupling disc; Two ports along separate routes, a port links to each other with the calibration mouth of base station RRU, and a port links to each other with frequency spectrograph; Be used for when calibration, making the output signal of the calibration mouth of base station RRU can arrive the smart antenna coupling disc, be dealt into frequency spectrograph after the radiofrequency signal merging with each radio frequency interface of RRU when test;
Frequency spectrograph links to each other with power splitter, is used to detect the signal of power splitter input.
16. the test macro like claim 15 is characterized in that, further comprises:
Calculation element is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna.
17. the test macro like claim 16 is characterized in that, further comprises:
Compensation arrangement is used for beginning to send broadcast singal in the base station, when frequency spectrograph begins to receive signal, with the phase place of said calculating phase difference value compensation to each sendaisle of base station under each angle.
18. the test macro like claim 17 is characterized in that, further comprises:
Deriving means; Be used for the compensation of the said calculating phase difference value under each angle to the phase place of each sendaisle of base station; Obtain under this angle in the base station and send the broadcasting power on the broadcast singal time-frequency spectrometer, the power that will confirm according to the broadcasting power under angle and this angle is as broadcasting figuration result.
19. the test macro like claim 18 is characterized in that, further comprises:
Comparison means is used for confirming according to the broadcasting figuration result and the theoretic broadcasting figuration result of test whether the broadcasting figuration is correct.
20. the method for testing like the arbitrary said test macro of claim 15 to 19 is characterized in that, comprises the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent.
21. method as claimed in claim 20 is characterized in that, further comprises:
In the antenna for base station coverage, confirm that through calculation element the receiving position under all angles that need test arrives the calculating phase difference value of each antenna.
22. method as claimed in claim 21 is characterized in that, further comprises:
Begin to send broadcast singal in the base station, when frequency spectrograph begins to receive signal, the said calculating phase difference value under each angle compensated to the phase place of each sendaisle of base station with compensation arrangement.
23. method as claimed in claim 22 is characterized in that, further comprises:
With the compensation of the said calculating phase difference value under each angle to the phase place of each sendaisle of base station, obtain under this angle and send the broadcasting power on the broadcast singal time-frequency spectrometer in the base station;
The power that to confirm according to the broadcasting power under angle and this angle is as broadcasting figuration result.
24. method as claimed in claim 23 is characterized in that, further comprises:
Whether correct through comparison means according to the said broadcasting figuration result and the definite broadcasting of the theoretic broadcasting figuration result figuration of test.
25. the method for testing of a smart antenna broadcasting figuration is characterized in that, comprises the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent;
In the antenna for base station coverage, confirm that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
Begin to send broadcast singal in the base station, when frequency spectrograph begins to receive signal, the said calculating phase difference value compensation under each angle to the phase place of each sendaisle of base station, obtained under this angle and sent the broadcasting power on the broadcast singal time-frequency spectrometer in the base station;
The power that to confirm according to the broadcasting power under angle and this angle is as broadcasting figuration result.
26. method as claimed in claim 25 is characterized in that, further comprises:
Said broadcasting figuration result and theoretic broadcasting figuration result according to test confirm whether the broadcasting figuration is correct.
27. the testing equipment of a smart antenna broadcasting figuration is characterized in that, comprising:
Calibration module is used for radio frequency unit is calibrated to phase place between the smart antenna coupling disc, makes the phase difference of each passage reach consistent;
Computing module is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
Acquisition module; Be used for beginning to send broadcast singal in the base station, when frequency spectrograph begins to receive signal; With the compensation of the said calculating phase difference value under each angle to the phase place of each sendaisle of base station; Obtain under this angle in the base station and send the broadcasting power on the broadcast singal time-frequency spectrometer, the power that will confirm according to the broadcasting power under angle and this angle is as broadcasting figuration result.
28. equipment as claimed in claim 27 is characterized in that, further comprises:
Comparison module is used for confirming according to the said broadcasting figuration result and the theoretic broadcasting figuration result of test whether the broadcasting figuration is correct.
29. the test macro of a smart antenna user downstream signal figuration is characterized in that, comprising: smart antenna coupling disc, power splitter, circulator, frequency spectrograph, signal source, wherein:
The smart antenna coupling disc is used for input radio frequency signal after antenna input port links to each other with the radio frequency interface of base station RRU;
Power splitter; A port links to each other with the calibration port of smart antenna coupling disc; Two ports along separate routes; A port links to each other with the calibration mouth of base station RRU, and a port links to each other with circulator, is used for when calibration, making the output signal of the calibration mouth of base station RRU can arrive the smart antenna coupling disc; The output signal that the time makes signal source in test is dealt into each radio frequency interface of RRU through the calibration port of smart antenna coupling disc, is dealt into frequency spectrograph after when test, the radiofrequency signal of each radio frequency interface of RRU being merged;
Circulator links to each other with frequency spectrograph, links to each other with signal source, is used for the spectrum of input signal appearance with the power splitter input, and the signal that signal source produces is imported power splitter.
30. the test macro like claim 29 is characterized in that, further comprises:
Calculation element is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna.
31. the test macro like claim 30 is characterized in that, further comprises:
Compensation arrangement is used for sending signal in signal source, when frequency spectrograph receives signal, the said calculating phase difference value under each angle being compensated to each receive path of base station and the phase place of each sendaisle.
32. the test macro like claim 31 is characterized in that, further comprises:
Deriving means; Be used for after phase place each receive path of the compensation of the said calculating phase difference value under each angle to base station and each sendaisle; Obtain under this angle in signal source and send the signal power on the signal time-frequency spectrometer, the power that will confirm according to the signal power under angle and this angle is as downstream signal figuration result.
33. the test macro like claim 32 is characterized in that, further comprises:
Comparison means is used for confirming according to the downstream signal figuration result and the theoretic downstream signal figuration result of test whether the downstream signal figuration is correct.
34. the method for testing like the arbitrary said test macro of claim 29 to 32 is characterized in that, comprises the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent.
35. method as claimed in claim 34 is characterized in that, further comprises:
In the antenna for base station coverage, confirm that through calculation element the receiving position under all angles that need test arrives the calculating phase difference value of each antenna.
36. method as claimed in claim 35 is characterized in that, further comprises:
Send signal in signal source, when frequency spectrograph receives signal, the said calculating phase difference value under each angle compensated to each receive path of base station and the phase place of each sendaisle with compensation arrangement.
37. method as claimed in claim 36 is characterized in that, further comprises:
After phase place, obtain under this angle and send the signal power on the signal time-frequency spectrometer in signal source with each receive path of the compensation of the said calculating phase difference value under each angle to base station and each sendaisle;
The power that to confirm according to the signal power under angle and this angle is as downstream signal figuration result.
38. method as claimed in claim 37 is characterized in that, further comprises:
Confirm according to the said downstream signal figuration result and the theoretic downstream signal figuration result that test whether the downstream signal figuration is correct through comparison means.
39. the method for testing of a smart antenna user downstream signal figuration is characterized in that, comprises the steps:
Radio frequency unit is calibrated to phase place between the smart antenna coupling disc, made the phase difference of each passage reach consistent;
In the antenna for base station coverage, confirm that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
When signal source is sent signal, frequency spectrograph reception signal; After the phase place with each receive path of the compensation of the said calculating phase difference value under each angle to base station and each sendaisle, obtain under this angle and send the signal power on the signal time-frequency spectrometer in signal source;
The power that to confirm according to the signal power under angle and this angle is as downstream signal figuration result.
40. method as claimed in claim 39 is characterized in that, further comprises:
Said downstream signal figuration result and theoretic downstream signal figuration result according to test confirm whether the downstream signal figuration is correct.
41. the testing equipment of a smart antenna user downstream signal figuration is characterized in that, comprising:
Calibration module is used for radio frequency unit is calibrated to phase place between the smart antenna coupling disc, makes the phase difference of each passage reach consistent;
Computing module is used in the antenna for base station coverage, confirms that the receiving position under all angles that need test arrives the calculating phase difference value of each antenna;
Acquisition module; Be used for when signal source is sent signal, frequency spectrograph reception signal; After the phase place with each receive path of the compensation of the said calculating phase difference value under each angle to base station and each sendaisle; Obtain under this angle in signal source and send the signal power on the signal time-frequency spectrometer, the power that will confirm according to the signal power under angle and this angle is as downstream signal figuration result.
42. equipment as claimed in claim 41 is characterized in that, further comprises:
Comparison module is used for confirming according to the said downstream signal figuration result and the theoretic downstream signal figuration result of test whether the downstream signal figuration is correct.
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