CN102142907A - Method and device for detecting radio frequency channels - Google Patents
Method and device for detecting radio frequency channels Download PDFInfo
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- CN102142907A CN102142907A CN2010101029742A CN201010102974A CN102142907A CN 102142907 A CN102142907 A CN 102142907A CN 2010101029742 A CN2010101029742 A CN 2010101029742A CN 201010102974 A CN201010102974 A CN 201010102974A CN 102142907 A CN102142907 A CN 102142907A
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Abstract
The embodiment of the invention relates to a radio communication technology, in particular to a method and device for detecting radio frequency channels, which are used for solving the problem of incapability of finding a damaged radio frequency channel, caused by bottom noise raise due to the damage of the channel because each radio frequency channel is independently judged by adopting a signal detection method in the prior art. The method in the embodiment of the invention comprises the steps of: determining measurement values of M currently used radio frequency channels, wherein M is a positive integer which is not more than the quantity of antennae and not less than 2; determining at least one reference radio frequency channel from the M radio frequency channels; and comparing the measurement values of the radio frequency channels to be detected in the M radio frequency channels with the measurement values of the reference radio frequency channels, and determining whether the radio frequency channels to be detected are failed according to a comparison result, wherein the reference radio frequency channels and the radio frequency channels to be detected are different. By adopting the embodiment of the invention, detection accuracy rate and system performance can be improved.
Description
Technical field
The present invention relates to wireless communication technology, the method and apparatus that particularly a kind of radio-frequency channel is detected.
Background technology
One of key technology of TD-SCDMA (Time Division Synchronized Code Division Multiple Access, TD SDMA) system is exactly the smart antenna algorithm.The prerequisite of this smart antenna algorithm application is to adopt intelligent antenna array.
In order to ensure the function of smart antenna, present scheme mainly is periodically antenna array to be carried out antenna calibration, compensates the phase place and the amplitude error of respectively working between the antenna.
Another function of periodic antenna calibration is whether the monitoring radio-frequency channel physical damage takes place.Concrete, whether surpass the radio-frequency channel that thresholding determines whether to exist fault by the absolute power that receives the calibrating sequence signal.Because it is slower that the radio frequency hardware performance changes, and periodic antenna calibration (being operated in GP (guardperiod, protection time slot)) can disturb uplink random to insert signal, therefore generally is to carry out primary calibration work in one hour.
The scheme whether present detection radio-frequency channel physical damage takes place is to determine according to the measured value of each radio-frequency channel whether this radio-frequency channel breaks down, that is to say independently judging each radio-frequency channel, thereby cause to find the radio-frequency channel damaged.
In sum, detect in the scheme that whether breaks down the radio-frequency channel at present, owing to adopt the method for input that each radio-frequency channel independently is judged,, thereby cause to find the radio-frequency channel damaged if passage self damage causes the end lifting of making an uproar.
Summary of the invention
The method and apparatus that the embodiment of the invention provides a kind of radio-frequency channel to detect, in order to solve the method that exists in the prior art each radio-frequency channel is independently judged owing to adopting input, cause the end lifting of making an uproar if passage self damages, thereby to cause to find to have damaged the problem of radio-frequency channel.
The method that a kind of radio-frequency channel that the embodiment of the invention provides is detected, this method comprises:
Determine the measured value of the current M that is a using radio-frequency channel, wherein M is not more than antenna amount, and is not less than 2 positive integer;
From M radio-frequency channel, determine at least one benchmark radio-frequency channel;
The measured value of radio-frequency channel to be detected in M the radio-frequency channel and the measured value of each benchmark radio-frequency channel are compared successively, and determine according to comparative result whether radio-frequency channel to be detected breaks down;
Wherein, the benchmark radio-frequency channel is different radio-frequency channels with radio-frequency channel to be detected.
The device that a kind of radio-frequency channel that the embodiment of the invention provides is detected, this device comprises:
The measured value determination module is used for determining the measured value of the current M that is a using radio-frequency channel, and wherein M is not more than antenna amount, and is not less than 2 positive integer;
Benchmark passage determination module is used for definite at least one benchmark radio-frequency channel from M radio-frequency channel;
Comparison module is used for the measured value of the radio-frequency channel that M radio-frequency channel is to be detected and the measured value of each benchmark radio-frequency channel and compares successively, and determines according to comparative result whether radio-frequency channel to be detected breaks down;
Wherein, the benchmark radio-frequency channel is different radio-frequency channels with radio-frequency channel to be detected.
The embodiment of the invention is determined at least one benchmark radio-frequency channel from M radio-frequency channel, the measured value of radio-frequency channel to be detected in M the radio-frequency channel and the measured value of each benchmark radio-frequency channel are compared successively, and determine according to comparative result whether radio-frequency channel to be detected breaks down, wherein M is not more than antenna amount, and is not less than 2 positive integer.Because being identical signal, the theoretical principle of smart antenna in different passages, has only phase difference, there is not amplitude difference, if same signal differs greatly in different passages, it is unusual to illustrate that passage exists, detect the radio-frequency channel and whether break down so each radio-frequency channel combined, thereby can find the radio-frequency channel damaged, guarantee to eat dishes without rice or wine proper communication, improve the accuracy rate and the systematic function that detect.
Description of drawings
The apparatus structure schematic diagram that Fig. 1 detects for embodiment of the invention radio-frequency channel;
Fig. 2 is the method flow schematic diagram that first kind of radio-frequency channel of the embodiment of the invention detected;
Fig. 3 is the method flow schematic diagram that second kind of radio-frequency channel of the embodiment of the invention detected.
Embodiment
The embodiment of the invention is determined at least one benchmark radio-frequency channel from M radio-frequency channel, the measured value of radio-frequency channel to be detected in M the radio-frequency channel and the measured value of each benchmark radio-frequency channel are compared successively, and determine according to comparative result whether radio-frequency channel to be detected breaks down, wherein M is not more than antenna amount, and is not less than 2 positive integer.Detect the radio-frequency channel and whether break down because each radio-frequency channel combined, thereby can find the radio-frequency channel damaged, guaranteed the proper communication of eating dishes without rice or wine, improved the accuracy rate and the systematic function that detect.
Wherein, the scheme of the embodiment of the invention can be applied among the TD-SCDMA, also can be applied in other systems that need detect the radio-frequency channel.
The measured value of the embodiment of the invention can be a power measurement values, includes but not limited to a kind of among the following measurement:
The received signal code power value (RSCP) of the received bandwidth total power value (RTWB) of radio-frequency channel, the slot interfering signal of time sign indicating number performance number (ISCP) of radio-frequency channel and radio-frequency channel;
Further the measured value of the embodiment of the invention can also comprise the signal to noise ratio (snr) of user terminal, and promptly the signal to noise ratio of the user terminal of measuring by the radio-frequency channel is as the measured value of this radio-frequency channel.
Need to prove, the value that the measured value of the embodiment of the invention is not limited to give above, as long as can be by calculating baseband signal, the performance number of measuring all be to use the embodiment of the invention.
Because the embodiment of the invention can be with the value of a plurality of different capacities as measured value, thereby increased the means of investigation problem, and realized simply, cost is low.
Below in conjunction with Figure of description the embodiment of the invention is described in further detail.
As shown in Figure 1, the device of embodiment of the invention radio-frequency channel detection comprises: measured value determination module 10, benchmark passage determination module 20 and comparison module 30.
Measured value determination module 10 is used for determining the measured value of the current M that is a using radio-frequency channel, and wherein M is not more than antenna amount, and is not less than 2 positive integer.
Benchmark passage determination module 20 is used for definite at least one benchmark radio-frequency channel from M radio-frequency channel.
The benchmark radio-frequency channel is different radio-frequency channels with radio-frequency channel to be detected.
Wherein, current radio-frequency channel of using is to think not have the passage of damage, can notify measured value determination module 10 by calibration system, also can detect which radio-frequency channel by measured value determination module 10 and use.
In specific implementation process, the value of M can be set as required, such as the measured value that can determine the radio-frequency channel that all are using; The value of preferable M can be greater than Q/2.Wherein, Q is the antenna number of intelligent antenna array.
Measured value determination module 10 determines that the mode of measured values includes but not limited to a kind of in the following manner:
The base band data that receives according to LTE Baseband Processing Unit calculates the measured value of M radio-frequency channel;
Calculate the measured value of M radio-frequency channel according to the base band data of handling through AD (Analog to Digital Converter, analog to digital converter);
Calculate the measured value of M radio-frequency channel according to the base band data of handling through DDC (Digital Down Conversion, Digital Down Convert);
According to calculating the measured value of M radio-frequency channel through the base band data after AD processing and the DDC processing.
Benchmark passage determination module 20 determines from M radio-frequency channel that specifically what benchmark radio-frequency channels can set as required.
It is a variety of that benchmark passage determination module 20 determines that from M radio-frequency channel the mode of at least one benchmark radio-frequency channel has, following enumerate several.
Mode one, benchmark passage determination module 20 are arranged in order the measured value of M radio-frequency channel from big to small, determine to come a last M-N measured value, with the radio-frequency channel of the measured value correspondence determined as the benchmark radio-frequency channel;
Wherein, N is not less than 1 and less than the positive integer of M, and N is not more than the maximum quantity of the excessive radio-frequency channel of detection power.Preferable, N is less than M/2.
In specific implementation process, the quantity of the radio-frequency channel that detection power is excessive can be set according to the performance of system.
Such as M is 10, and the maximum quantity of the radio-frequency channel that detection power is excessive is 4, then N can be set at 4.
After being arranged in order from big to small according to measured value, can be with the radio-frequency channel of the individual measured value correspondence of back 6 (10-4) as the benchmark radio-frequency channel.
Certainly, also can from back 6, select the radio-frequency channel of part measured value correspondence as required as the benchmark radio-frequency channel.That is to say that radio-frequency channel to be detected and benchmark radio-frequency channel sum can equal M, also can be less than M.
Accordingly, it is poor that comparison module 30 is done the measured value of selecting at least one radio-frequency channel to be detected and each benchmark radio-frequency channel in the radio-frequency channel of top n measured value correspondence, judge in all differences obtain that whether quantity greater than the difference of first threshold value is greater than first threshold, if determine then to break down in the radio-frequency channel of the measured value correspondence of selection; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
Concrete, the radio-frequency channel that comparison module 30 determines to come top n measured value correspondence is radio-frequency channel to be detected, from come the top n measured value, select corresponding radio-frequency channel not detect, an and measured value of numerical value maximum, with the measured value selected successively with the measured value of each benchmark radio-frequency channel do poor, judge in all differences obtain that whether quantity greater than the difference of first threshold value is greater than first threshold, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, continue to carry out and from come the top n measured value, select corresponding radio-frequency channel not detect, and the step of a measured value of numerical value maximum; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
In specific implementation process, comparison module 30 can be determined maximum measured value earlier, and it is poor then the measured value of the measured value of maximum and each benchmark radio-frequency channel to be done.Such as the benchmark radio-frequency channel is 6, then can obtain 6 differences.
Then each difference and first threshold value are compared, determine quantity greater than the difference of first threshold value, to compare greater than the quantity and the first threshold of the difference of first threshold value then, if greater than first threshold, determine then to break down in the radio-frequency channel of maximum measured value correspondence greater than the quantity of the difference of first threshold value; Otherwise do not break down in the radio-frequency channel of determining maximum measured value correspondence.
Behind the radio-frequency channel of a measured value correspondence that has detected the numerical value maximum, can check and whether also have the radio-frequency channel (whether the quantity of promptly checking radio-frequency channel after testing equals N) that needs detection, if have then detect the radio-frequency channel of a second largest measured value correspondence of numerical value again, and the like.The mode of the radio-frequency channel that concrete detection mode and a measured value that detects the numerical value maximum are corresponding is identical, does not repeat them here.
Preferable, do not break down if determine the radio-frequency channel of maximum measured value correspondence, then comparison module 30 can stop other radio-frequency channels to be detected are detected.
Wherein, the first threshold and first threshold value can be set as required, in order to improve the accuracy rate of monitoring, can during greater than first threshold value, determine to break down in the radio-frequency channel of measured value correspondence in all differences; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence.
In specific implementation process, benchmark passage determination module 20 also can be arranged in order the measured value of M radio-frequency channel from small to large, and the radio-frequency channel of determining to come the most preceding M-N measured value correspondence is the benchmark radio-frequency channel;
Accordingly, the radio-frequency channel of N measured value correspondence was radio-frequency channel to be detected after comparison module 30 was determined to come.
Mode two, benchmark passage determination module 20 are arranged in order the measured value of M radio-frequency channel from big to small, determine to come a most preceding M-P measured value.With the radio-frequency channel of the measured value correspondence determined as the benchmark radio-frequency channel;
Wherein, P is not less than 1 and less than the positive integer of M, and P is not more than the maximum quantity of the too small radio-frequency channel of detection power.Preferable, P is less than M/2.
In specific implementation process, the quantity of the radio-frequency channel that detection power is too small can be set according to the performance of system.
Such as M is 10, and the maximum quantity of the radio-frequency channel that detection power is too small is 3, then N can be set at 4.
After being arranged in order from big to small according to measured value, can be with the radio-frequency channel of the individual measured value correspondence of preceding 7 (10-3) as the benchmark radio-frequency channel.
Certainly, as required also can be in the past select the radio-frequency channel of part measured value correspondence as the benchmark radio-frequency channel in 7.That is to say that radio-frequency channel to be detected and benchmark radio-frequency channel sum can equal M, also can be less than M.
Accordingly, it is poor that comparison module 30 is done the measured value of the radio-frequency channel to be detected in the radio-frequency channel of P the measured value correspondence in back and each benchmark radio-frequency channel, and take absolute value, judge in all absolute values obtain that whether quantity greater than the absolute value of second threshold value is greater than second threshold value, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, otherwise do not break down in the radio-frequency channel of definite measured value correspondence of selecting.
Concrete, the radio-frequency channel of P measured value correspondence was radio-frequency channel to be detected after comparison module 30 was determined to come, from come P the measured value in back, select corresponding radio-frequency channel not detect, an and measured value of numerical value minimum, do poorly with the measured value of each benchmark radio-frequency channel the measured value selected successively, and take absolute value.Judge in all absolute values obtain that whether quantity greater than the absolute value of second threshold value is greater than second threshold value, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, continue to carry out from come P the measured value in back and select corresponding radio-frequency channel not detect, and the step of a measured value of numerical value minimum; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
In specific implementation process, comparison module 30 can be determined minimum measured value earlier, and it is poor then the measured value of the measured value of minimum and each benchmark radio-frequency channel to be done, and takes absolute value.Such as the benchmark radio-frequency channel is 7, then can obtain 7 absolute values.
Then each absolute value and second threshold value are compared, determine quantity greater than the absolute value of second threshold value, to compare greater than the quantity and second threshold value of the absolute value of second threshold value then, if greater than second threshold value, determine then to break down in the radio-frequency channel of minimum measured value correspondence greater than the quantity of the absolute value of second threshold value; Otherwise do not break down in the radio-frequency channel of determining maximum measured value correspondence.
Behind the radio-frequency channel of a measured value correspondence that has detected the numerical value minimum, can check and whether also have the radio-frequency channel (whether the quantity of promptly checking radio-frequency channel after testing equals N) that needs detection, if have then detect the radio-frequency channel of a little measured value correspondence of numerical value second again, and the like.The mode of the radio-frequency channel that concrete detection mode and a measured value that detects the numerical value minimum are corresponding is identical, does not repeat them here.
Preferable, do not break down if determine the radio-frequency channel of minimum measured value correspondence, then comparison module 30 can stop other radio-frequency channels to be detected are detected.
Wherein, the right threshold value and second threshold value can be set as required, in order to improve the accuracy rate of monitoring, can during greater than second threshold value, determine to break down in the radio-frequency channel of measured value correspondence at all absolute values; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence.
In specific implementation process, benchmark passage determination module 20 also can be arranged in order the measured value of M radio-frequency channel from small to large, and the radio-frequency channel of determining to come last M-N measured value correspondence is the benchmark radio-frequency channel;
Accordingly, to determine to come the radio-frequency channel of top n measured value correspondence be radio-frequency channel to be detected to comparison module 30.
In the enforcement, mode one then can be adopted in the excessive radio-frequency channel of detection power if desired; Mode two then can be adopted in the too small radio-frequency channel of detection power if desired; Excessive and the too small radio-frequency channel of detection power then can be used in combination mode one and mode two if desired.
The device that embodiment of the invention radio-frequency channel is detected can be the base station, can also be other equipment of network side.
As shown in Figure 2, the method for first kind of radio-frequency channel detection of the embodiment of the invention comprises the following steps:
The benchmark radio-frequency channel is different radio-frequency channels with radio-frequency channel to be detected.
Wherein, current radio-frequency channel of using is to think not have the passage of damage, can be notified by calibration system, also can detect which radio-frequency channel and use.
In specific implementation process, the value of M can be set as required, such as the measured value that can determine the radio-frequency channel that all are using; The value of preferable M can be greater than Q/2.Wherein, Q is the antenna number of intelligent antenna array.
In the step 201, the mode of determining measured value includes but not limited to a kind of in the following manner:
The base band data that receives according to LTE Baseband Processing Unit calculates the measured value of M radio-frequency channel;
Calculate the measured value of M radio-frequency channel according to the base band data of handling through AD;
Calculate the measured value of M radio-frequency channel according to the base band data of handling through DDC;
According to calculating the measured value of M radio-frequency channel through the base band data after AD processing and the DDC processing.
Concrete, the form of the base band data that receives is r (i)=this plural form of a+bj.
Calculate the received power value of signal on the time domain according to following formula:
N represents the data of N the chip (chip) that receive.
Wherein, the mould value of formula one can be determined according to formula two.Determine the mould of complex signal according to following formula, value:
Specifically definite what benchmark radio-frequency channels can be set as required from M radio-frequency channel.
Because the embodiment of the invention can directly utilize the base band data on each 5ms time slot to determine measured value, compare in the background technology one hour and carry out primary calibration work, shortened the time of calibration operation, the radio-frequency channel that can in shorter time, note abnormalities.
In the step 202, the mode of determining at least one benchmark radio-frequency channel from M radio-frequency channel has a variety of, following enumerate several.
In mode one, the step 202, the measured value of M radio-frequency channel is arranged in order from big to small, determines to come a last M-N measured value, with the radio-frequency channel of the measured value correspondence determined as the benchmark radio-frequency channel;
Wherein, N is not less than 1 and less than the positive integer of M, and N is not more than the maximum quantity of the excessive radio-frequency channel of detection power.Preferable, N is less than M/2.
In specific implementation process, the quantity of the radio-frequency channel that detection power is excessive can be set according to the performance of system.
Such as M is 10, and the maximum quantity of the radio-frequency channel that detection power is excessive is 4, then N can be set at 4.
After being arranged in order from big to small according to measured value, can be with the radio-frequency channel of the individual measured value correspondence of back 6 (10-4) as the benchmark radio-frequency channel.
Certainly, also can from back 6, select the radio-frequency channel of part measured value correspondence as required as the benchmark radio-frequency channel.That is to say that radio-frequency channel to be detected and benchmark radio-frequency channel sum can equal M, also can be less than M.
Accordingly, in the step 203, it is poor that the measured value of selecting at least one radio-frequency channel to be detected and each benchmark radio-frequency channel in the radio-frequency channel of top n measured value correspondence is done;
Whether judge in all differences obtain quantity greater than the difference of first threshold value greater than first threshold, if determine then to break down in the radio-frequency channel of the measured value correspondence selected; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
Concrete, in the step 203, the radio-frequency channel of determining to come top n measured value correspondence is radio-frequency channel to be detected, from come the top n measured value, select corresponding radio-frequency channel not detect, an and measured value of numerical value maximum, with the measured value selected successively with the measured value of each benchmark radio-frequency channel do poor, judge in all differences obtain that whether quantity greater than the difference of first threshold value is greater than first threshold, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, continue to carry out and from come the top n measured value, select corresponding radio-frequency channel not detect, and the step of a measured value of numerical value maximum; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
In specific implementation process, in the step 203, can determine earlier maximum measured value, it is poor then the measured value of the measured value of maximum and each benchmark radio-frequency channel to be done.Such as the benchmark radio-frequency channel is 6, then can obtain 6 differences.
Then each difference and first threshold value are compared, determine quantity greater than the difference of first threshold value, to compare greater than the quantity and the first threshold of the difference of first threshold value then, if greater than first threshold, determine then to break down in the radio-frequency channel of maximum measured value correspondence greater than the quantity of the difference of first threshold value; Otherwise do not break down in the radio-frequency channel of determining maximum measured value correspondence.
Behind the radio-frequency channel of a measured value correspondence that has detected the numerical value maximum, can check and whether also have the radio-frequency channel (whether the quantity of promptly checking radio-frequency channel after testing equals N) that needs detection, if have then detect the radio-frequency channel of a second largest measured value correspondence of numerical value again, and the like.The mode of the radio-frequency channel that concrete detection mode and a measured value that detects the numerical value maximum are corresponding is identical, does not repeat them here.
Preferable, do not break down if determine the radio-frequency channel of maximum measured value correspondence, then can stop other radio-frequency channels to be detected are detected.
Wherein, the first threshold and first threshold value can be set as required, in order to improve the accuracy rate of monitoring, can during greater than first threshold value, determine to break down in the radio-frequency channel of measured value correspondence in all differences; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence.
In the step 202, also the measured value of M radio-frequency channel can be arranged in order from small to large, the radio-frequency channel of determining to come the most preceding M-N measured value correspondence is the benchmark radio-frequency channel;
Accordingly, in the step 203, the radio-frequency channel of N measured value correspondence is radio-frequency channel to be detected after determining to come.
In mode two, the step 202, the measured value of M radio-frequency channel is arranged in order from big to small, determines to come a most preceding M-P measured value.With the radio-frequency channel of the measured value correspondence determined as the benchmark radio-frequency channel;
Wherein, P is not less than 1 and less than the positive integer of M, and P is not more than the maximum quantity of the too small radio-frequency channel of detection power.Preferable, P is less than M/2.
In specific implementation process, the quantity of the radio-frequency channel that detection power is too small can be set according to the performance of system.
Such as M is 10, and the maximum quantity of the radio-frequency channel that detection power is too small is 3, then N can be set at 4.
After being arranged in order from big to small according to measured value, can be with the radio-frequency channel of the individual measured value correspondence of preceding 7 (10-3) as the benchmark radio-frequency channel.
Certainly, as required also can be in the past select the radio-frequency channel of part measured value correspondence as the benchmark radio-frequency channel in 7.That is to say that radio-frequency channel to be detected and benchmark radio-frequency channel sum can equal M, also can be less than M.
Accordingly, in the step 203, it is poor that the measured value of the radio-frequency channel to be detected in the radio-frequency channel of P the measured value correspondence in back and each benchmark radio-frequency channel is done, and take absolute value;
Judge in all absolute values obtain that whether quantity greater than the absolute value of second threshold value is greater than second threshold value, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, otherwise do not break down in the radio-frequency channel of definite measured value correspondence of selecting.
Concrete, in the step 203, the radio-frequency channel of P measured value correspondence is radio-frequency channel to be detected after determining to come, from come P the measured value in back, select corresponding radio-frequency channel not detect, an and measured value of numerical value minimum, do poorly with the measured value of each benchmark radio-frequency channel the measured value selected successively, and take absolute value.Judge in all absolute values obtain that whether quantity greater than the absolute value of second threshold value is greater than second threshold value, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, continue to carry out from come P the measured value in back and select corresponding radio-frequency channel not detect, and the step of a measured value of numerical value minimum; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
In specific implementation process, in the step 203, can determine earlier minimum measured value, it is poor then the measured value of the measured value of minimum and each benchmark radio-frequency channel to be done, and takes absolute value.Such as the benchmark radio-frequency channel is 7, then can obtain 7 absolute values.
Then each absolute value and second threshold value are compared, determine quantity greater than the absolute value of second threshold value, to compare greater than the quantity and second threshold value of the absolute value of second threshold value then, if greater than second threshold value, determine then to break down in the radio-frequency channel of minimum measured value correspondence greater than the quantity of the absolute value of second threshold value; Otherwise do not break down in the radio-frequency channel of determining maximum measured value correspondence.
Behind the radio-frequency channel of a measured value correspondence that has detected the numerical value minimum, can check and whether also have the radio-frequency channel (whether the quantity of promptly checking radio-frequency channel after testing equals N) that needs detection, if have then detect the radio-frequency channel of a little measured value correspondence of numerical value second again, and the like.The mode of the radio-frequency channel that concrete detection mode and a measured value that detects the numerical value minimum are corresponding is identical, does not repeat them here.
Preferable, do not break down if determine the radio-frequency channel of minimum measured value correspondence, then comparison module 30 can stop other radio-frequency channels to be detected are detected.
Wherein, the right threshold value and second threshold value can be set as required, in order to improve the accuracy rate of monitoring, can during greater than second threshold value, determine to break down in the radio-frequency channel of measured value correspondence at all absolute values; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence.
In the step 202, also the measured value of M radio-frequency channel can be arranged in order from small to large, the radio-frequency channel of determining to come last M-N measured value correspondence is the benchmark radio-frequency channel;
Accordingly, in the step 203, the radio-frequency channel of determining to come top n measured value correspondence is radio-frequency channel to be detected.
In the enforcement, mode one then can be adopted in the excessive radio-frequency channel of detection power if desired; Mode two then can be adopted in the too small radio-frequency channel of detection power if desired; Excessive and the too small radio-frequency channel of detection power then can be used in combination mode one and mode two if desired.
The executive agent of embodiment of the invention method can be the base station, can also be other equipment of network side.
As shown in Figure 3, the method for second kind of radio-frequency channel detection of the embodiment of the invention comprises the following steps:
The base band data that step 302, definite basis receive is determined the measured value of each radio-frequency channel, supposes M radio-frequency channel altogether.
Wherein, N is the quantity of the excessive radio-frequency channel of the detection power of supporting.
Whether all differences that step 307, judgement obtain are all greater than first threshold value, if then execution in step 308; Otherwise, execution in step 310.
Break down in the radio-frequency channel of step 308, definite measured value correspondence of selecting, and execution in step 309.
Whether the quantity of step 309, judgement radio-frequency channel after testing equals N, if then execution in step 318; Otherwise, return step 306.
Do not break down in the radio-frequency channel of step 310, definite measured value correspondence of selecting, and execution in step 318.
Wherein, P is the quantity of the too small radio-frequency channel of the detection power of supporting.
Whether all absolute values that step 314, judgement obtain are all greater than second threshold value, if then execution in step 315; Otherwise, execution in step 317.
Break down in the radio-frequency channel of step 315, definite measured value correspondence of selecting, and execution in step 316.
Whether the quantity of step 316, judgement radio-frequency channel after testing equals P, if then execution in step 318; Otherwise, return step 313.
Do not break down in the radio-frequency channel of step 317, definite measured value correspondence of selecting, and execution in step 318.
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 complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in 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.
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 by 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 energy 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 carrying out on computer or other programmable devices 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 creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
From the foregoing description as can be seen: the embodiment of the invention is determined the measured value of the current M that is a using radio-frequency channel, and wherein M is not more than antenna amount, and is not less than 2 positive integer; From M radio-frequency channel, determine at least one benchmark radio-frequency channel; The measured value of radio-frequency channel to be detected in M the radio-frequency channel and the measured value of each benchmark radio-frequency channel are compared successively, and determine according to comparative result whether radio-frequency channel to be detected breaks down.
Detect the radio-frequency channel and whether break down because each radio-frequency channel combined, thereby can find the radio-frequency channel damaged, guaranteed the proper communication of eating dishes without rice or wine, improved the accuracy rate and the systematic function that detect.
Further, because the embodiment of the invention can directly utilize the base band data on each 5ms time slot to determine measured value, compare in the background technology one hour and carry out primary calibration work, shortened the time of calibration operation, the radio-frequency channel that can in shorter time, note abnormalities;
Further, because the embodiment of the invention can be with the value of a plurality of different capacities as measured value, thereby increased the means of investigation problem, and realized simply, cost is low.
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, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (23)
1. the method that detects of a radio-frequency channel is characterized in that this method comprises:
Determine the measured value of the current M that is a using radio-frequency channel, wherein M is not more than antenna amount, and is not less than 2 positive integer;
From M radio-frequency channel, determine at least one benchmark radio-frequency channel;
The measured value of radio-frequency channel to be detected in M the radio-frequency channel and the measured value of each benchmark radio-frequency channel are compared successively, and determine according to comparative result whether radio-frequency channel to be detected breaks down;
Wherein, the benchmark radio-frequency channel is different radio-frequency channels with radio-frequency channel to be detected.
2. the method for claim 1 is characterized in that, describedly determines that from M radio-frequency channel at least one benchmark radio-frequency channel specifically comprises:
The measured value of M radio-frequency channel is arranged in order from big to small;
Determine to come a last M-N measured value;
With the radio-frequency channel of the measured value correspondence determined as the benchmark radio-frequency channel;
Wherein, N is not less than 1 and less than the positive integer of M, and N is not more than the maximum quantity of the excessive radio-frequency channel of detection power.
3. method as claimed in claim 2 is characterized in that, the described step of determining whether radio-frequency channel to be detected breaks down specifically comprises:
It is poor that the measured value of selecting at least one radio-frequency channel to be detected and each benchmark radio-frequency channel in the radio-frequency channel of top n measured value correspondence is done;
Whether judge in all differences obtain quantity greater than the difference of first threshold value greater than first threshold, if determine then to break down in the radio-frequency channel of the measured value correspondence selected; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
4. method as claimed in claim 3 is characterized in that, the described step of determining whether radio-frequency channel to be detected breaks down specifically comprises:
The radio-frequency channel of determining to come top n measured value correspondence is radio-frequency channel to be detected;
From come the top n measured value, select corresponding radio-frequency channel not detect, and a measured value of numerical value maximum;
With the measured value selected successively with the measured value of each benchmark radio-frequency channel do poor;
Judge in all differences obtain that whether quantity greater than the difference of first threshold value is greater than first threshold, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, continue to carry out and from come the top n measured value, select corresponding radio-frequency channel not detect, and the step of a measured value of numerical value maximum; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
5. method as claimed in claim 4 is characterized in that, does not break down if determine the radio-frequency channel of the measured value correspondence of selection, then stops other radio-frequency channels to be detected are detected.
6. the method for claim 1 is characterized in that, describedly determines that from M radio-frequency channel at least one benchmark radio-frequency channel specifically comprises:
The measured value of M radio-frequency channel is arranged in order from big to small;
Determine to come a most preceding M-P measured value;
With the radio-frequency channel of the measured value correspondence determined as the benchmark radio-frequency channel;
Wherein, P is not less than 1 and less than the positive integer of M, and P is not more than the maximum quantity of the too small radio-frequency channel of detection power.
7. method as claimed in claim 6 is characterized in that, the described step of determining whether radio-frequency channel to be detected breaks down specifically comprises:
It is poor that the measured value of the radio-frequency channel to be detected in the radio-frequency channel of P the measured value correspondence in back and each benchmark radio-frequency channel is done, and take absolute value;
Judge in all absolute values obtain that whether quantity greater than the absolute value of second threshold value is greater than second threshold value, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, otherwise do not break down in the radio-frequency channel of definite measured value correspondence of selecting.
8. method as claimed in claim 7 is characterized in that, the described step of determining whether radio-frequency channel to be detected breaks down specifically comprises:
The radio-frequency channel of P measured value correspondence is radio-frequency channel to be detected after determining to come;
From come P the measured value in back, select corresponding radio-frequency channel not detect, and a measured value of numerical value minimum;
Do poorly with the measured value of each benchmark radio-frequency channel the measured value selected successively, and take absolute value;
Judge in all absolute values obtain that whether quantity greater than the absolute value of second threshold value is greater than second threshold value, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, continue to carry out from come P the measured value in back and select corresponding radio-frequency channel not detect, and the step of a measured value of numerical value minimum; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
9. method as claimed in claim 8 is characterized in that, does not break down if determine the radio-frequency channel of the measured value correspondence of selection, then stops other radio-frequency channels to be detected are detected.
10. as the arbitrary described method of claim 1～9, it is characterized in that the measured value of the described definite current M that is a using radio-frequency channel specifically comprises:
The base band data that receives according to LTE Baseband Processing Unit calculates the measured value of M radio-frequency channel; Or
According to calculating the measured value of M radio-frequency channel through the base band data after analog to digital converter AD processing and/or the Digital Down Convert DDC processing.
11., it is characterized in that described measured value comprises a kind of in received bandwidth total power value, slot interfering signal of time sign indicating number performance number, the received signal code power value as the arbitrary described method of claim 1～9.
12. method as claimed in claim 11 is characterized in that, this method also comprises:
At least two performance numbers in received bandwidth total power value, slot interfering signal of time sign indicating number performance number and received signal code power value are during respectively as measured value, with each performance number during as measured value all detected radio-frequency channel of breaking down as the fault radio-frequency channel.
13. the device that the radio-frequency channel is detected is characterized in that this device comprises:
The measured value determination module is used for determining the measured value of the current M that is a using radio-frequency channel, and wherein M is not more than antenna amount, and is not less than 2 positive integer;
Benchmark passage determination module is used for definite at least one benchmark radio-frequency channel from M radio-frequency channel;
Comparison module is used for the measured value of the radio-frequency channel that M radio-frequency channel is to be detected and the measured value of each benchmark radio-frequency channel and compares successively, and determines according to comparative result whether radio-frequency channel to be detected breaks down;
Wherein, the benchmark radio-frequency channel is different radio-frequency channels with radio-frequency channel to be detected.
14. device as claimed in claim 13 is characterized in that, described benchmark passage determination module specifically is used for:
The measured value of M radio-frequency channel is arranged in order from big to small, determines to come a last M-N measured value, with the radio-frequency channel of the measured value correspondence determined as the benchmark radio-frequency channel;
Wherein, N is not less than 1 and less than the positive integer of M, and N is not more than the maximum quantity of the excessive radio-frequency channel of detection power.
15. device as claimed in claim 14 is characterized in that, described comparison module specifically is used for:
It is poor that the measured value of selecting at least one radio-frequency channel to be detected and each benchmark radio-frequency channel in the radio-frequency channel of top n measured value correspondence is done, judge in all differences obtain that whether quantity greater than the difference of first threshold value is greater than first threshold, if determine then to break down in the radio-frequency channel of the measured value correspondence of selection; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
16. device as claimed in claim 15 is characterized in that, described comparison module specifically is used for:
The radio-frequency channel of determining to come top n measured value correspondence is radio-frequency channel to be detected, from come the top n measured value, select corresponding radio-frequency channel not detect, an and measured value of numerical value maximum, with the measured value selected successively with the measured value of each benchmark radio-frequency channel do poor, judge in all differences obtain that whether quantity greater than the difference of first threshold value is greater than first threshold, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, continue to carry out and from come the top n measured value, select corresponding radio-frequency channel not detect, and the step of a measured value of numerical value maximum; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
17. device as claimed in claim 16 is characterized in that, described comparison module also is used for:
Do not break down if determine the radio-frequency channel of the measured value correspondence of selection, then stop other radio-frequency channels to be detected are detected.
18. device as claimed in claim 13 is characterized in that, described benchmark passage determination module specifically is used for:
The measured value of M radio-frequency channel is arranged in order from big to small, determines to come a most preceding M-P measured value, with the radio-frequency channel of the measured value correspondence determined as the benchmark radio-frequency channel;
Wherein, P is not less than 1 and less than the positive integer of M, and P is not more than the maximum quantity of the too small radio-frequency channel of detection power.
19. device as claimed in claim 18 is characterized in that, described comparison module specifically is used for:
It is poor that the measured value of the radio-frequency channel to be detected in the radio-frequency channel of P the measured value correspondence in back and each benchmark radio-frequency channel is done, and take absolute value, judge in all absolute values obtain that whether quantity greater than the absolute value of second threshold value is greater than second threshold value, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, otherwise do not break down in the radio-frequency channel of definite measured value correspondence of selecting.
20. device as claimed in claim 19 is characterized in that, described comparison module specifically is used for:
The radio-frequency channel of P measured value correspondence is radio-frequency channel to be detected after determining to come, from come P the measured value in back, select corresponding radio-frequency channel not detect, an and measured value of numerical value minimum, with the measured value selected successively with the measured value of each benchmark radio-frequency channel do poor, and take absolute value, judge in all absolute values obtain that whether quantity greater than the absolute value of second threshold value is greater than second threshold value, if, then break down in the radio-frequency channel of determining the measured value correspondence of selection, continue to carry out from come P the measured value in back and select corresponding radio-frequency channel not detect, and the step of a measured value of numerical value minimum; Otherwise do not break down in the radio-frequency channel of determining the measured value correspondence of selection.
21. device as claimed in claim 20 is characterized in that, described comparison module also is used for:
Do not break down if determine the radio-frequency channel of the measured value correspondence of selection, then stop other radio-frequency channels to be detected are detected.
22., it is characterized in that described measured value determination module specifically is used for as the arbitrary described device of claim 15～21:
The base band data that receives according to LTE Baseband Processing Unit calculates the measured value of M radio-frequency channel; Or
According to calculating the measured value of M radio-frequency channel through the base band data after analog to digital converter AD processing and/or the Digital Down Convert DDC processing.
23., it is characterized in that described measured value comprises a kind of in received bandwidth total power value, slot interfering signal of time sign indicating number performance number, the received signal code power value as the arbitrary described device of claim 15～21;
Described device also comprises:
Processing module, when being used at least two performance numbers in received bandwidth total power value, slot interfering signal of time sign indicating number performance number and received signal code power value respectively as measured value, with each performance number during as measured value all detected radio-frequency channel of breaking down as the fault radio-frequency channel.
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