CN102387522A - Correcting method and device as well as detection equipment of power control module of radio remote unit - Google Patents
Correcting method and device as well as detection equipment of power control module of radio remote unit Download PDFInfo
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- CN102387522A CN102387522A CN2010102739147A CN201010273914A CN102387522A CN 102387522 A CN102387522 A CN 102387522A CN 2010102739147 A CN2010102739147 A CN 2010102739147A CN 201010273914 A CN201010273914 A CN 201010273914A CN 102387522 A CN102387522 A CN 102387522A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
Abstract
The invention discloses a correcting method and device as well as detection equipment of a power control module of a radio remote unit (RRU). The method comprises the following steps of: acquiring a power gain value of an emission channel according to the power of a radio signal emitted by the RRU and the baseband power, wherein the power of the radio signal emitted by the RRU is measured by adopting a suction type power detection manner, and the baseband power is obtained according to equi-directional orthogonal data received by the RRU currently; correcting the emission channel gain of the power control module of the RRU by using the power gain value; and correcting the detection channel gain and the receiving channel gain of the power control module of the RRU according to the corrected emission channel gain. According to the invention, the gain characteristic of the channels can be correctly responded by the power control module of the RRU, and the power stability of the RRU is guaranteed.
Description
Technical field
The present invention relates to the communications field, in particular to the modification method of a kind of Remote Radio Unit (Radio Remote Unit abbreviates RRU as) power controlling models and device, checkout equipment.
Background technology
The coverage and the signal quality of the base station (NodeB) at its place of power decision of Remote Radio Unit are for the signal quality that guarantees NodeB need effectively be controlled the power of Remote Radio Unit.At present, power control scheme is provided with the power coupling circuit near being mostly to be employed in antenna opening, and through the variation of the indirect reaction antenna opening power of coupled signal, the method that adopts closed power control then is to reach the effect of antenna opening power stability.Can realize power control through the mode of time division multiplexing receive path based on the sense channel multiplex technique of receive path to transmission channel.
The prerequisite that realizes closed power control is the gain characteristic through the correct reflection radio-frequency channel of channel gain model, through regulating adjustable gain, guarantees the stable of radio-frequency channel then, and then guarantees the stable of antenna opening power.The channel gain model be the gain of each device on the radio-frequency channel vector with, for the final gain that guarantees the radio-frequency channel, need calibrate the whole piece radio-frequency channel.At present; The channel gain model is when Remote Radio Unit is produced; The gain that needs the complicated instrument of employing (for example, spectrum detector etc.) to detect transmission channel and sense channel obtains the gain characteristic of transmission channel and sense channel, and the whole piece radio-frequency channel is calibrated.Reality use through in carry out power control according to this channel gain model.
But; In practical application; The gain characteristic of transmission channel and sense channel can change in time, thereby the calibration result when causing producing can not correctly react current channel gain characteristic, so cause the power of Remote Radio Unit unusual with abominable result such as false-alarm.And, because transmission channel and sense channel fault are difficult to distinguish and can't repair.
Summary of the invention
Main purpose of the present invention is to provide a kind of modification method and device, checkout gear of RRU power controlling models, to solve the above-mentioned gain characteristic owing to transmission channel and the sense channel problems such as the unusual and false-alarm of the power that causes RRU that can change in time at least.
According to an aspect of the present invention; A kind of modification method of RRU power controlling models is provided; Comprise: the power of the radiofrequency signal through adopting the RRU emission that suction-type power detection mode measures and the base band power that obtains according to the current received orthogonal data in the same way of RRU obtain the power gain value of transmission channel; Use the transmission channel gain of power gain value modified R RU power controlling models; According to revised transmission channel gain, the sense channel gain of modified R RU power controlling models and receive path gain.
According to a further aspect in the invention, a kind of checkout equipment is provided, has comprised: the power meter module is used to adopt the power of the radiofrequency signal of the RRU emission that suction-type power detection mode measures; Communication module is connected with said RRU through interface, is used to receive the current received I/Q data from baseband pool unit of said RRU of said RRU transmission; Control module is used for obtaining base band power from said I/Q data solver, and according to the power that said base band power and said power meter module measure, obtains the power gain value of transmission channel.
According to a further aspect of the invention, another kind of checkout equipment is provided, has comprised: the power meter module is used to adopt the power of the radiofrequency signal of the RRU emission that suction-type power detection mode measures; Judge module is used to judge whether the power that said power meter module measures reaches preset power, if then trigger communication module; Said communication module is connected with said RRU through interface, is used for sending notice to said RRU, and the power of notifying said power meter module to measure has reached said preset power.
According to a further aspect of the invention; A kind of correcting device of RRU power controlling models is provided; Comprise: computing module; Be used for the power of the radiofrequency signal through adopting the RRU emission that suction-type power detection mode measures and the base band power that obtains according to the current received orthogonal data in the same way of RRU, obtain the power gain value of transmission channel; First correcting module is used to use the transmission channel gain of said power gain value modified R RU power controlling models; Second modified module is used for revising the sense channel gain and the receive path gain of said RRU power controlling models according to revised said transmission channel gain.
Through the present invention; The power and the base band power that obtains through the I/Q data solver of the radiofrequency signal of the RRU emission through accurately measuring; Can obtain the power gain value of transmission channel, thereby can revise, and then can revise sense channel and receive path to the transmission channel gain of RRU power controlling models; Thereby make the gain characteristic of the reaction channel that RRU power controlling models can be correct, the stability of the RRU power of assurance.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation according to the checkout equipment of the embodiment of the invention one;
Fig. 2 is the structural representation according to the checkout equipment of the embodiment of the invention two;
Fig. 3 is the structural representation according to the correcting device of the RRU power controlling models of the embodiment of the invention three;
Fig. 4 is the flow chart according to the modification method of the RRU power controlling models of the embodiment of the invention four;
Fig. 5 is the correction flow chart according to the RRU power controlling models of the embodiment of the invention five;
Fig. 6 is according to the mutual sketch map between checkout equipment, RRU and the BBU in the embodiment of the invention five;
Fig. 7 is the correction flow chart according to the RRU power controlling models of the embodiment of the invention six.
Embodiment
Hereinafter will and combine embodiment to specify the present invention with reference to accompanying drawing.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
Embodiment one
Fig. 1 is the structural representation according to embodiment of the invention checkout equipment, and is as shown in Figure 1, and this checkout equipment comprises: power meter module 10, communication module 12 and control module 14.
Wherein, power meter module 10 is used to adopt the power of the radiofrequency signal of the RRU emission that suction-type power detection mode measures, and promptly calculates RRU antenna opening power; The groundwork of power meter module 10 is that foundation/corrections that the radiofrequency signal to RRU output is measured as follow-up RRU power ride gain model accurately provides reference accurately, and notifies control module 14 through internal interface accurately with the size of the power signal that collects.
For example; Power meter module 10 can adopt digital-to-analogue conversion (Analog-Digital Conversion; Abbreviate ADC as) power of the radiofrequency signal of the mode measure R RU output of sampling; Perhaps, also can microwave detector be set, the power of the radiofrequency signal through microwave detector measure R RU output in power meter module 10.If adopting the mode of ADC sampling measures; Because the strict clock synchronization of TD-SCDMA; Therefore; Need in power meter module 10, realize the clock synchronization of checkout equipment and tested RRU by configurable clock generator synchronization module (for example, the GPS module), thereby can calculate the performance number of antenna opening accurately.
For example, communication module 12 can adopt but be not limited to network interface or serial ports and RRU communication, and concrete interface mode can be confirmed according to the external interface pattern of the RRU unit that is connected.In the present embodiment, checkout equipment can provide abundant external interface to satisfy the RRU communication with variety classes producer.
The major function of communication module 12 is the communication work of accomplishing between control module 14 and the RRU.Wherein, The main contents of communication transmission comprise control information and data message; Wherein data message comprises the (In-phase/Quadrature of quadrature in the same way of the baseband pool unit (BBU) that current RRU receives; Abbreviate I/Q as) data (also can be called base band data, these data send to checkout equipment by the RRU side).Because RRU is when transmitting; The RRU baseband signal is through field programmable gate array (Field Programmable Gate Array; Abbreviate FPGA as) to deliver in the pre-distortion module, the pre-distortion module is accomplished Digital Up Convert (Digital Up-Conversion abbreviates DUC as), peak clipping (Crest-Factor Reduction; Abbreviate CFR as) and the function of digital pre-distortion (DPD); And give digital to analog converter (DAC) with the I/Q data after the up-conversion, and digital to analog converter (DAC) carries out digital-to-analogue conversion and sees analog if signal off, and this signal sends to antenna opening through power amplifier again.Therefore, checkout equipment can instead be separated the power that obtains the RRU emitting radio frequency signal after obtaining the I/Q data that RRU receives through communication module 12.Wherein, communication module 12 can make RRU to give checkout equipment from the IQ data forwarding that the BBU side gets access to through control signal notice RRU.Control signal mainly comprises the control information of variable gain on the passage (mailing to the RRU side by this equipment).
In embodiments of the present invention; The control module 14 main transmitting-receiving controls of accomplishing control signal; The antenna opening power that will calculate from power meter module 10 is as the output power of transmission channel; The base band power that will come out from the I/Q data solver that communication module 12 gets access to draws the power gain value of down going channel (being transmission channel) as the input power of transmission channel through above-mentioned two power calculation.
The above-mentioned checkout equipment that provides according to the embodiment of the invention; The power of radiofrequency signal that can be through accurate measure R RU output is use power during with RRU output radiofrequency signal; Power gain to transmission channel is revised, thereby can realize the power problem of RRU is located fast.
Embodiment two
Fig. 2 is the structural representation according to the checkout equipment of the embodiment of the invention two; Be with the difference of embodiment one; In embodiments of the present invention, the base band power when checkout equipment does not calculate RRU output radiofrequency signal, but when the power of measuring reaches preset performance number; Notice RRU is by the power gain of RRU calculating transmission channel.As shown in Figure 2, this checkout equipment mainly comprises: power meter module 20, judge module 22 and communication module 24.Wherein, similar with embodiment one, power meter module 20 is used to adopt the power of the radiofrequency signal of the RRU emission that suction-type power detection mode measures; Judge module 22 is used to judge whether the power that said power meter module measures reaches preset power, if then trigger communication module 24; Communication module 24 is connected with RRU through interface, is used for sending notice to RRU, and the power that notice power meter module 20 measures has reached preset power.In embodiments of the present invention, communication module 24 is similar with embodiment one, can through but be not limited to network interface or serial ports and RRU communication.
In embodiments of the present invention, RRU can be with the gain of minimum step value adjustment downlink passage, until receiving the above-mentioned notice that communication module 24 sends.
Wherein, above-mentioned preset power can be the nominal power of checkout equipment, and; Checkout equipment can send to RRU with its nominal power through communication module 24; RRU is when knowing that performance number that power meter module 20 is measured reaches this nominal power, and the base band power that adopts according to the current emission signal can calculate the power gain of transmission channel, for example; The base band data that RRU can issue through buffer memory BBU is converted out corresponding base band power according to this base band data of buffer memory.Thereby can revise the transmission channel gain of the RRU power controlling models of BBU side preservation.And can further trigger the power gain that RRU calculates sense channel and receive path.
Embodiment three
Fig. 3 is that as shown in Figure 3, this device mainly comprises according to the structural representation of the correcting device of the RRU power controlling models of the embodiment of the invention: computing module 30, first correcting module 32 and second modified module 34.Wherein, Computing module 30; Be used for the power of the radiofrequency signal through adopting the RRU emission that suction-type power detection mode measures and the base band power that obtains according to current received quadrature in the same way (I/Q) data of RRU, obtain the power gain value of transmission channel; First correcting module 32 is used to use the transmission channel gain of this power gain value modified R RU power controlling models; Second modified module 34 is used for according to revised transmission channel gain the sense channel gain of modified R RU power controlling models and receive path gain.
Wherein, The computing module 30 of the embodiment of the invention can adopt the checkout equipment of the foregoing description one to realize that perhaps, computing module 30 also can adopt checkout equipment of the foregoing description two and RRU to unite realization; Promptly by the antenna opening power of the checkout equipment measure R RU described in the embodiment; When performance number is preset in this power arrival, checkout equipment notice RRU, RRU is after receiving notice; According to the base band power value of this preset performance number and the use of RRU current emission signal, can obtain the power gain value of transmission channel.
Wherein, first correcting module 32 can be so that the transmission channel gain of the RRU power controlling models that the power gain value correction BBU side of the transmission channel that computing module 30 obtains is preserved.And second correcting module 34 can be revised sense channel gain and receive path gain according to the method for describing among the following embodiment.
In the embodiment of the invention, can when RRU uses, the power problem of RRU be located fast, thus the stability of assurance RRU power.
Embodiment four
Fig. 4 is that as shown in Figure 4, this method mainly may further comprise the steps according to the flow chart of the modification method of the RRU power controlling models of the embodiment of the invention four:
Step S402, the power of the radiofrequency signal through adopting the RRU emission that suction-type power detection mode measures and the base band power that obtains according to the current received I/Q data of RRU obtain the power gain value of transmission channel;
For example, the power of the radiofrequency signal that the checkout equipment employing suction-type power detection mode measure R RU that is provided by the embodiment of the invention two launches is when the performance number that measures (for example reaches preset power; The nominal power of checkout equipment) time, checkout equipment sends notice to said RRU, after RRU receives notice; Be handed down to the I/Q data of RRU according to BBU; Calculate base band power, then, RRU is with the output power of above-mentioned preset power as transmission channel; With the input power of this base band power, calculate the power gain value of transmission channel as transmission channel.
Perhaps; The checkout equipment that is provided by the embodiment of the invention one adopts the power of the radiofrequency signal of suction-type power detection mode measure R RU output, and receives the I/Q data of RRU transmission, wherein; These I/Q data are the current I/Q data that receive of RRU; Checkout equipment obtains base band power according to this I/O data solver then, and last, checkout equipment is with the output power of the power that measures as transmission channel; With the input power of base band power, calculate the power gain value of transmission channel as transmission channel.
Wherein, can pass through external interface (for example, network interface or serial ports) between RRU and the checkout equipment and carry out communication.
Wherein, checkout equipment can pass through the power of the radiofrequency signal of microwave detector measure R RU emission; Perhaps; The power of the radiofrequency signal that the mode measure R RU that also can adopt ADC to sample launches is under the situation that this mode of employing is measured, for the accuracy that guarantees to measure; Before the power of the radiofrequency signal of measure R RU emission, checkout equipment can also adjust its clock and RRU synchronous.
Step S404 uses the transmission channel gain of the power gain value modified R RU power controlling models of transmission channel;
Step S406, according to revised transmission channel gain, the sense channel gain of modified R RU power controlling models and receive path gain.
For example, RRU loopback emission through and sense channel, detect the power of the radiofrequency signal that this sense channel receives, obtain sense channel power; RRU obtains the input power of sense channel according to the I/Q data and the transmission channel gain of current reception then; RRU is the output power of above-mentioned sense channel power as sense channel and receive path then, obtains the power gain value of sense channel and receive path according to above-mentioned input power and output power; At last, RRU uses the sense channel gain and the receive path gain of the power gain value modified R RU power controlling models of sense channel and receive path.
Through the method that the embodiment of the invention provides, can locate fast the power problem of RRU, guaranteed the stability of the power of RRU.
Embodiment five
In embodiments of the present invention, when using RRU with the outfield, cause RRU power controlling models to lose efficacy because channel gain changes, the checkout equipment that uses the foregoing description two to provide is modified to example to RRU power controlling models and describes.
Fig. 5 is the correction flow chart according to the RRU power controlling models of the embodiment of the invention; Fig. 6 is the mutual sketch map between checkout equipment in the embodiment of the invention, RRU and the BBU; As illustrated in Figures 5 and 6, in embodiments of the present invention, RRU power controlling models revised mainly may further comprise the steps:
Step S501; The radio frequency interface of the suction-type power meter of checkout equipment is connected to the antenna opening place of Remote Radio Unit through matched load; And use netting twine that checkout equipment is connected with Remote Radio Unit; Checkout equipment can be discerned the network interface IP address of Remote Radio Unit automatically, sets up the socket communication;
Step S502, checkout equipment sends message to Remote Radio Unit, obtains the type of Remote Radio Unit;
Step S503, checkout equipment notice Remote Radio Unit gets into the gain calibration operating conditions, and informs the nominal power of Remote Radio Unit checkout equipment;
Step S504, its state of Remote Radio Unit notice baseband pool unit (Base band Unit abbreviates BBU as) changes;
Step S505, baseband pool unit issue the corresponding base band data of calibration power to Remote Radio Unit after learning that Remote Radio Unit gets into the gain calibration attitude;
Step S506, Remote Radio Unit is with the gain of the minimum step value adjustment downlink passage of transmission channel gain;
Step S507, Remote Radio Unit judge that the power meter module until checkout equipment detects the nominal power whether its antenna opening power reaches the gain corrective, if, execution in step S508 then, otherwise, execution in step S506 returned;
When checkout equipment finds can inform after the antenna opening power of Remote Radio Unit reaches the nominal power of self setting that its antenna opening power of Remote Radio Unit reaches the nominal power of sending to before;
Step S508, the software module of Remote Radio Unit can be adjusted out the fixed gain of downlink passage and the fixed gain of sense channel again;
Step S509, Remote Radio Unit loopback transmission channel and sense channel, the signal through transmission channel produces carries out accounting again to the gain of receive path;
Step S510, Remote Radio Unit passes through IR agreement transparent transmission message with the device number of revised downlink passage, sense channel and receive path gain binding Remote Radio Unit, passes to baseband pool unit.
The Remote Radio Unit of accomplishing this gain makeover process will receive the channel gain through revising that baseband pool unit issues, the power controlling models that Remote Radio Unit will be new according to command enable when reconfiguring the sub-district.Thereby can effectively solve the Remote Radio Unit power abnormal problem that causes owing to the time reason.
Embodiment six
In embodiments of the present invention, when using RRU with the outfield, cause RRU power controlling models to lose efficacy because channel gain changes, the checkout equipment that uses the foregoing description one to provide is modified to example to RRU power controlling models and describes.
Fig. 7 is the correction flow chart according to the RRU power controlling models of the embodiment of the invention, and is as shown in Figure 7, mainly may further comprise the steps:
Step S701; The radio frequency interface of the suction-type power meter of checkout equipment is connected to the antenna opening place of Remote Radio Unit through matched load; And use netting twine that checkout equipment is connected with Remote Radio Unit; Checkout equipment can be discerned the network interface IP address of Remote Radio Unit automatically, sets up the socket communication;
Step S702, checkout equipment sends message to Remote Radio Unit, obtains the type of Remote Radio Unit;
Step S703, checkout equipment notice Remote Radio Unit gets into the gain calibration operating conditions, and informs the nominal power of Remote Radio Unit checkout equipment;
Step S704, its state of Remote Radio Unit notice baseband pool unit (Base band Unit abbreviates BBU as) changes;
Step S705, baseband pool unit issue the corresponding base band data of calibration power to Remote Radio Unit after learning that Remote Radio Unit gets into the gain calibration attitude;
Step S706, the power meter module of checkout equipment is measured the antenna opening power of Remote Radio Unit;
Step S707, checkout equipment obtain the current I/Q data that receive of RRU, and from the I/Q data of obtaining, calculate base band power;
Step S708, checkout equipment is according to the antenna opening power that measures and resolve the base band power that obtains, and calculates the power gain value of downlink passage;
Step S709, checkout equipment is transferred to RRU with the power gain value of downlink passage through communication module;
Step S710, Remote Radio Unit is the basis with the power gain value of this downlink passage, Remote Radio Unit loopback transmission channel and sense channel, the signal through transmission channel produces carries out accounting again to the gain of receive path;
Step S711, Remote Radio Unit passes through IR agreement transparent transmission message with the device number of revised downlink passage, sense channel and receive path gain binding Remote Radio Unit, passes to baseband pool unit.
The Remote Radio Unit of accomplishing this gain makeover process will receive the channel gain through revising that baseband pool unit issues, the power controlling models that Remote Radio Unit will be new according to command enable when reconfiguring the sub-district.Thereby can effectively solve the Remote Radio Unit power abnormal problem that causes owing to the time reason.
Need to prove; Though the foregoing description describes with the example that is modified to of RRU power controlling models, is not limited to this, in practical application; The technical scheme that when producing, also can use the embodiment of the invention to provide; Thereby can replace complicated instrument to accomplish the work of passage calibration in process of production, practice thrift the service time of complicated instrument, for enterprise production is practiced thrift cost.
From above description; Can find out; In embodiments of the present invention; IQ data source through getting access to from the RRU side is set up or modified R RU power controlling models to the whole the way of restraint of the gain of antenna opening, for transmission, reception and the sense channel of RRU, all is to gain as stable channel through the fixed gain of whole piece passage and the adjustable gain on the passage.Thereby when producing, can accomplish the calibration work of emission, detection and receive path, save the service time of complicated instrument in the unit interval, enhance productivity.In external field environment, can locate fast, and possibility is provided for the quick reparation of RRU power controlling models the power problem of Remote Radio Unit.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, and in some cases, can carry out step shown or that describe with the order that is different from here by calculation element; Perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the modification method of a radio frequency remote unit RRU power controlling models is characterized in that, comprising:
The power of the radiofrequency signal through adopting the RRU emission that suction-type power detection mode measures and the base band power that obtains according to the current received I/Q of the quadrature in the same way data of RRU obtain the power gain value of transmission channel;
Use the transmission channel gain of said power gain value modified R RU power controlling models;
According to revised said transmission channel gain, revise the sense channel gain and the receive path gain of said RRU power controlling models.
2. method according to claim 1; It is characterized in that; The power of the radiofrequency signal that the RRU that measures through employing suction-type power detection mode exports and the base band power that obtains according to the current received I/Q data of RRU, the power gain value that obtains transmission channel comprises:
Checkout equipment adopts the power of the radiofrequency signal of suction-type power detection mode measure R RU emission, and when the performance number that measures reached preset power, said checkout equipment sent notice to said RRU;
Said RRU receives said notice, and the said I/Q data computation that is handed down to said RRU through baseband pool unit BBU goes out said base band power;
Said RRU with the input power of said base band power as said transmission channel, calculates the power gain value of said transmission channel with the output power of said preset power as said transmission channel.
3. method according to claim 2 is characterized in that, said checkout equipment adopts the power of the radiofrequency signal of suction-type power detection mode measure R RU output to comprise:
Said RRU receives and the corresponding base band data of said preset power, adjusts the gain of said transmission channel with the minimum step value, until the said notice that receives said checkout equipment;
Said checkout equipment judges whether the performance number that measures reaches said preset power, if send said notice to said RRU.
4. method according to claim 1; It is characterized in that; The power of the radiofrequency signal that the RRU that measures through employing suction-type power detection mode exports and the base band power that obtains according to the current received I/Q of the quadrature in the same way data of RRU, the power gain value that obtains transmission channel comprises:
Checkout equipment adopts the power of the radiofrequency signal of suction-type power detection mode measure R RU output;
Said checkout equipment receives the I/Q data of said RRU transmission, and wherein, said I/Q data are the current I/Q data that receive of said RRU;
Said checkout equipment obtains said base band power according to said I/O data solver;
Said checkout equipment with the input power of said base band power as said transmission channel, calculates the power gain value of said transmission channel with the output power of the power that measures as said transmission channel.
5. according to each described method in the claim 2 to 4, it is characterized in that said checkout equipment is measured the power of the radiofrequency signal of said RRU emission through microwave detector.
6. according to each described method in the claim 2 to 4, it is characterized in that said checkout equipment adopts the mode of analog-to-digital conversion ADC sampling to measure the power of the radiofrequency signal of said RRU emission; Before the power of the radiofrequency signal of measuring said RRU emission, said method also comprises: said checkout equipment its clock of adjustment and said RRU are synchronous.
7. according to each described method in the claim 2 to 4, it is characterized in that said RRU carries out communication through external interface and said checkout equipment, wherein, said external interface comprises: network interface or serial ports.
8. according to each described method in the claim 1 to 4, it is characterized in that according to revised said transmission channel gain, sense channel gain and the receive path gain of revising said RRU power controlling models comprise:
The said emission of said RRU loopback through with said sense channel, detect the power of the radiofrequency signal that said sense channel receives, obtain sense channel power;
Said RRU obtains the input power of said sense channel according to the I/Q data and the gain of said transmission channel of current reception;
Said RRU is the output power of said sense channel power as said sense channel and said receive path, obtains the power gain value of said sense channel and said receive path according to said input power and said output power;
Said RRU uses the sense channel gain and the receive path gain of the said RRU power of the power gain value correction controlling models of said sense channel and said receive path.
9. a checkout equipment is characterized in that, comprising:
The power meter module is used to adopt the power of the radiofrequency signal of the RRU emission that suction-type power detection mode measures;
Communication module is connected with said RRU through interface, is used to receive the current received I/Q data from baseband pool unit of said RRU of said RRU transmission;
Control module is used for obtaining base band power from said I/Q data solver, and according to the power that said base band power and said power meter module measure, obtains the power gain value of transmission channel.
10. checkout equipment according to claim 9 is characterized in that, said interface comprises: network interface or serial ports.
11. a checkout equipment is characterized in that, comprising:
The power meter module is used to adopt the power of the radiofrequency signal of the RRU emission that suction-type power detection mode measures;
Judge module is used to judge whether the power that said power meter module measures reaches preset power, if then trigger communication module;
Said communication module is connected with said RRU through interface, is used for sending notice to said RRU, and the power of notifying said power meter module to measure has reached said preset power.
12. the correcting device of a RRU power controlling models is characterized in that, comprising:
Computing module is used for the power of the radiofrequency signal through adopting the RRU emission that suction-type power detection mode measures and the base band power that obtains according to the current received I/Q of the quadrature in the same way data of RRU, obtains the power gain value of transmission channel;
First correcting module is used to use the transmission channel gain of said power gain value modified R RU power controlling models;
Second modified module is used for revising the sense channel gain and the receive path gain of said RRU power controlling models according to revised said transmission channel gain.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010273914.7A CN102387522B (en) | 2010-08-31 | 2010-08-31 | The modification method of Remote Radio Unit Power control model and device, checkout equipment |
| PCT/CN2011/074441 WO2012028001A1 (en) | 2010-08-31 | 2011-05-20 | Modification method, device and detection equipment for power control model of radio remote unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010273914.7A CN102387522B (en) | 2010-08-31 | 2010-08-31 | The modification method of Remote Radio Unit Power control model and device, checkout equipment |
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| CN102387522A true CN102387522A (en) | 2012-03-21 |
| CN102387522B CN102387522B (en) | 2015-11-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN201160312Y (en) * | 2007-11-23 | 2008-12-03 | 深圳国人通信有限公司 | RRU testing system of base band dragged away subsystem and BBU simulating apparatus |
| JP2010148020A (en) * | 2008-12-22 | 2010-07-01 | Fujitsu Ltd | Wireless transmitter, and carrier leak control method |
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| WO2017121125A1 (en) * | 2016-01-14 | 2017-07-20 | 中兴通讯股份有限公司 | Link calibration method and apparatus, and radio-frequency feed-in system |
| CN108112021A (en) * | 2016-11-24 | 2018-06-01 | 大唐移动通信设备有限公司 | A kind of retransmission method and equipment of radio-frequency channel detection data |
Also Published As
| Publication number | Publication date |
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| CN102387522B (en) | 2015-11-25 |
| WO2012028001A1 (en) | 2012-03-08 |
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