CN104469831B - Fault detection method and device are shunk in the network coverage - Google Patents
Fault detection method and device are shunk in the network coverage Download PDFInfo
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Abstract
The present invention relates to a kind of network coverage to shrink fault detection method and device, wherein, method includes the communication sample data that collection obtains target BS, and each sample data that communicates includes the Timing Advance of user equipment (UE) corresponding to the communication sample；The All Time lead of acquisition is averaged, obtains average time lead；According to average time lead, the average coverage distance of target BS is obtained；Centered on target BS, on the camber line that average coverage distance is radius, radially each communication sample data, each efficient communication sample after being screened are screened to close to the base station and with pre-determined distance scope on the direction away from base station；Obtain the up-downgoing equilibrium valve of each efficient communication sample, and according to up-downgoing equilibrium valve, determine whether target BS occurs the network coverage and shrink failure, and then realization in time, actively, efficiently detects the network coverage and shrinks failure, helps solve network coverage contraction failure in time.
Description
Technical field
The present invention relates to telecommunication technology field, more particularly to a kind of network coverage to shrink fault detection method and device.
Background technology
The network coverage is shunk, and refers to the normal coverage areas of a base station cell due to being caused by the influence of certain factor
Coverage diminishes.For example, originally the scope within the 4km of base station can normal talking, now can only be apart from base station
Scope ability normal talking within 2km, i.e., the cellphone subscriber in region is unable to normal talking between 2km to the 4km of base station.Net
Network covering, which is shunk, causes the normal talking business of user in original some network coverage normal regions to be affected.
After base station equipment enters network operation, the gradual aging of equipment, antenna performance decline, and dilatation inevitably be present
The reason such as Power Control in combining and the network optimization, the network coverage is caused to shrink and influence the phenomenon that user uses.By to base
Station structure and its operation logic are analyzed, can be roughly divided into the reason for causing the network coverage to be shunk failures of antenna feed system,
Several major classes such as base station sub-system failure, other fault warnings.
Failure is shunk for the network coverage, is found after all not having network signal by customer complaint at present, Er Qieyi
As be all after there occurs large area customer complaint is compared, just can determine whether that failure is shunk in the network coverage, time-consuming and not for this method
Beneficial in time, effectively detect the network coverage shrink failure.
The content of the invention
The present invention provides a kind of network coverage and shrinks fault detection method and device, to realize in time, actively, efficiently
Detect the network coverage and shrink failure, help solve network coverage contraction failure in time.
The present invention provides a kind of network coverage and shrinks fault detection method, including：
Collection obtains the communication sample data of target BS, and each sample data that communicates includes user corresponding to the communication sample
The Timing Advance of equipment UE；
The All Time lead of acquisition is averaged, obtains average time lead；
According to the average time lead, the average coverage distance of the target BS is obtained；
It is on the camber line of radius, radially to close to described in the average coverage distance centered on the target BS
It is each after being screened with pre-determined distance scope screening each communication sample data on the direction of base station and the remote base station
Efficient communication sample；
The up-downgoing equilibrium valve of each efficient communication sample is obtained, and according to the up-downgoing equilibrium valve, determines the target
Whether base station, which occurs the network coverage, is shunk failure.
The present invention also provides a kind of network coverage and shrinks failure detector, including：
Acquisition module, the communication sample data of target BS is obtained for gathering, and each sample data that communicates includes the communication
The Timing Advance of user equipment (UE) corresponding to sample；
Computing module, for being averaged to the All Time lead of acquisition, obtain average time lead；According to institute
Average time lead is stated, obtains the average coverage distance of the target BS；
Screening module, for being footpath on the camber line of radius in the average coverage distance centered on the target BS
Each communication sample data is screened to close to the base station and with pre-determined distance scope on the direction away from the base station, is obtained
Each efficient communication sample after to screening；
The acquisition module, it is additionally operable to obtain the up-downgoing equilibrium valve of each efficient communication sample；
Determining module, for according to the up-downgoing equilibrium valve, determining whether the target BS occurs network coverage receipts
Contracting failure.
Fault detection method and device are shunk in the network coverage of the present invention, by obtaining in each communication sample of target BS
Timing Advance, and the All Time lead data to getting are averaged, and obtain average time lead and target
The average coverage distance in base station；Again centered on target BS, on the camber line that average coverage distance is radius, radially to close to mesh
Each communication sample is screened on mark base station and the direction of remote target BS, each efficient communication sample after being screened
This；Further according to the up-downgoing equilibrium valve of each efficient communication sample, determine whether target BS occurs the network coverage and shrink failure.
And then realization in time, actively, efficiently detects the network coverage and shrinks failure, help solve network coverage contraction failure in time.
Brief description of the drawings
Fig. 1 is the schematic flow sheet for the embodiment one that fault detection method is shunk in inventive network covering；
Fig. 2 is the schematic flow sheet for the embodiment two that fault detection method is shunk in inventive network covering；
Fig. 3 is the structural representation for the embodiment one that failure detector is shunk in inventive network covering.
Embodiment
Fig. 1 is the schematic flow sheet for the embodiment one that fault detection method is shunk in inventive network covering.As shown in figure 1,
Method described in the present embodiment one, including：
Step 101, collection obtain the communication sample data of target BS, and each sample data that communicates includes the communication sample pair
User equipment (User Equipment, the abbreviation answered：UE Timing Advance (Timing Advance, abbreviation)：TA).
Specifically, the network coverage is shunk, refer to the normal coverage areas of a base station cell due to by certain factor
Influence causes coverage to diminish.For example, originally the scope within the 4km of base station can normal talking, now can only be
Scope ability normal talking within the 2km of base station, i.e., the UE in region can not positive normal open between 2km to the 4km of base station
Words.The network coverage, which is shunk, causes the normal talking business of user in original some network coverage normal regions to be affected.Therefore,
If wanting, the network coverage for obtaining somewhere shrinks situation, it is necessary to detect the coverage of the base station of this area.It can specifically pass through
Failure detector is shunk in the network coverage, with fixed sampling time interval t, in acquisition time T, to corresponding to Target cell
Target BS carries out the collection of communication sample data, it is preferred that sampling time interval t is 480ms, and acquisition time T can basis
The average daily telephone traffic quantity of cell corresponding to target BS carries out reference settings, if the average daily telephone traffic of cell is more than or equal to
5ERL overlay area (or according to the region of the community user density more than 200), acquisition time T are 80 hours；It is if small
Overlay area (or the cell coverage area in user density less than 200) of the average daily telephone traffic in area less than 5ERL, collection
Time T is 120 hours.
The Timing Advance TA of user equipment (UE) is included in communication sample data.TA is reflected between UE and base station indirectly
Distance, TA is bigger, and UE and the distance between base station are more remote.Signal has delay in space propagation, as UE during calling to
Direction away from base station is moved, then the signal sent from base station will " more and more slower " arrival UE, at the same time, UE signal
The arrival base station of meeting " more and more slower ", postpone signals of long certain UE that base station can be caused to receive on this time slot and received with base station
The time slot of next other UE signals is overlapped, causes intersymbol interference, and therefore, during progress is called, UE issues base station
The time delay value of UE measurements is carried on measurement report head, and base station must monitor the time that calling reaches, and on the downlink channel
Sent and instructed to UE with the frequencies of 480ms once, the time that instruction UE is sent in advance, this time is exactly TA.
Step 102, the All Time lead to acquisition are averaged, and obtain average time lead.
Step 103, according to average time lead, obtain the average coverage distance of target BS.
Specifically, TA codomain is 0~63 (0~233 μ s), 0~63bit of coding that it is timed in advance is limited, and makes one
As the coverage distance of base station be 35km, be calculated as follows：
R=1/2*3.7 μ s/bit*63bit*c=35km；
Wherein, 3.7 μ s/bit are per bit durations, and 63bit is to adjust maximum number bits the time, and c is that the light velocity (propagate by signal
Speed), 1/2 considers coming and going for signal.
Therefore, distance corresponding to 1bit is 554m, that is to say, that distance corresponding to a TA value is 554m.
For example, when the ue is in an idle mode, it can utilize synchronizing channel (Synchronization Channel, letter
Claim：SCH) adjust the sequential inside UE, but it be not aware that it is how far apart from base station.If UE and base station are at a distance of 30km's
Words, then UE sequential will 100 μ s slower than base station.When UE sends its first RACH (Random Access
Channel, referred to as：RACH) during signal, just 100 μ s of evening, then propagation delay by 100 μ s, just have when reaching base station
200 μ s overall delay, it is likely that and the pulse generation conflict of the adjacent time-slots near base station.Therefore, RACH and others one
A little channel access pulses will be shorter than other pulses.Only after the time sequence adjusting signals TA of base station is received, UE could be sent normally
The pulse of length.In this above-mentioned example, UE just needs the signal of 200 μ s transmissions in advance.
Using TA measured values come positioning UE and the distance of base station, so as to judge base station coverage condition and communication specimen sample point
Distribution situation, 0~63bit is specifically corresponded to the 0~63 of TA values, carry out section distribution division according to 554m, each communicate sample
Sampled point can be all distributed in TA values some threshold value corresponding to 0~63.If the coverage of a base station is shunk, then
The statistical distribution of communication sample in its acquisition time T can be also varied from.
Average time lead can be obtained according to the All Time lead TA of acquisition after above-mentioned division has been carried out
TAav, average time lead TAavComputational methods it is as follows：
A) shunk in the network coverage and measurement task is formulated on failure detector, start timing advance counter
C100650001 to C1006500033, each counter correspond to 2 bit in timer coding 64bit；
B) corresponding relation is as shown in table 1 between counter and base station range：
Table 1, counter and base station range corresponding relation
C) the coverage distance weighted average in each section：Counter is identified using counter_i, the count value is
TA is the number of analog value, and wherein i identifies counter sequence number (i=0~32), such as counter_0 count value is sequence number
For 0 counter C100650001 count value, the count value is exactly TA=0 number；XiIt is corresponding with TA values to identify base station
Coverage section (is identified shown in scope) i.e. in table 1, and span is 0~64.Then be averaged coverage distance TAavComputational methods
For：
Due to XiMark base station cell corresponds to coverage section, and span is 0~64, therefore is actually had：
In other words, TAavValue try to achieve as follows：
TAav=(sum ([C100650001]) * 0+sum ([C100650002]) * 2+sum ([C100650003]) * 4+sum
([C100650004])*6+sum([C100650005])*8+sum([C100650006])*10+sum([C100650007])*
12+sum([C100650008])*14+sum([C100650009])*16+sum([C100650010])*18+sum
([C100650011])*20+sum([C100650012])*22+sum([C100650013])*24+sum
([C100650014])*26+sum([C100650015])*28+sum([C100650016])*30+sum
([C100650017])*32+sum([C100650018])*34+sum([C100650019])*36+sum
([C100650020])*38+sum([C100650021])*40+sum([C100650022])*42+sum
([C100650023])*44+sum([C100650024])*46+sum([C100650025])*48+sum
([C100650026])*50+sum([C100650027])*52+sum([C100650028])*54+sum
([C100650029])*56+sum([C100650030])*58+sum([C100650031])*60+sum
([C100650032])*62+sum([C100650033])*64)/Sum([C100650001]+[C100650002]+
[C100650003]+[C100650004]+[C100650005]+[C100650006]+[C100650007]+[C100650008]
+[C100650009]+[C100650010]+[C100650011]+[C100650012]+[C100650013]+
[C100650014]+[C100650015]+[C100650016]+[C100650017]+[C100650018]+[C100650019]
+[C100650020]+[C100650021]+[C100650022]+[C100650023]+[C100650024]+
[C100650025]+[C100650026]+[C100650027]+[C100650028]+[C100650029]+[C100650030]
+[C100650031]+[C100650032]+[C100650033])。
The average time lead TA of base station is determinedavAnd then the distance according to corresponding to a TA value is 554m, the mesh
The average coverage distance of mark base station is assured that, and the average coverage distance has been concentrated around target BS covering model
Most of UE communication sample under enclosing.
Step 104, centered on target BS, in average coverage distance on the camber line of radius, radially to close to target
Each communication sample data is screened with pre-determined distance scope on base station and the direction of remote target BS, it is each effective after being screened
Communicate sample.
Specifically, centered on target BS, on the camber line that average coverage distance is radius, radially to close to target base
Stand and away from target BS direction on pre-determined distance scope (i.e. in TA span), to what is obtained in step 101
Communication sample is screened, the efficient communication sample after being screened.Due to having got the flat of target BS in step 103
Equal coverage distance, therefore the average coverage distance has been concentrated around most of UE communication sample under target BS covering, with
This average coverage distance is screening starting point, can greatly improve the screening efficiency of efficient communication sample.It should be noted that have
The screening of effect communication sample can be restricted to screening conditions in the present embodiment in several ways.
Step 105, the up-downgoing equilibrium valve for obtaining each efficient communication sample, and according to up-downgoing equilibrium valve, determine target
Whether base station, which occurs the network coverage, is shunk failure.
Specifically, a call will be normally carried out, upper line level and descending level difference value are needed in reasonable normal range (NR),
10dBm is usually no more than, it is boundary that 12dBm is taken on usual engineering significance.Base station is according to network related protocol standard, with fixed
Sampling time interval t, gather the up-downgoing level value intensity of UE local environments.And target BS is assessed according to up-downgoing equilibrium valve
The network coverage whether occurs and shrinks failure.
Fault detection method is shunk in the network coverage that the present embodiment provides, by obtaining in each communication sample of target BS
Timing Advance, and the All Time lead data to getting are averaged, and obtain average time lead and target
The average coverage distance in base station；Again centered on target BS, on the camber line that average coverage distance is radius, radially to close to mesh
Each communication sample is screened on mark base station and the direction of remote target BS, each efficient communication sample after being screened
This；Further according to the up-downgoing equilibrium valve of each efficient communication sample, determine whether target BS occurs the network coverage and shrink failure.
And then realization in time, actively, efficiently detects the network coverage and shrinks failure, help solve network coverage contraction failure in time.
Fig. 2 is the schematic flow sheet for the embodiment two that fault detection method is shunk in inventive network covering.As shown in Fig. 2
Method described in the present embodiment two, including：
Step 201, collection obtain the communication sample data of target BS, and each sample data that communicates includes the communication sample pair
The Timing Advance for the user equipment (UE) answered；Also include UE downlink reception level, carrier/interface ratio corresponding to the communication sample；Also wrap
Include：UE terminal actual emission power, downlink reception level corresponding to the communication sample.
Specifically, UE can be by measurement report by UE Timing Advance, UE downlink reception level, carrier/interface ratio, UE
The information such as terminal actual emission power be sent to target BS, failure detector is shunk in the network coverage, and collection obtains target
The communication sample data of base station, includes UE Timing Advance in the sample data that communicates, UE downlink reception level, carrier/interface ratio,
The information such as UE terminal actual emission power, downlink reception level.
Step 202, the All Time lead to acquisition are averaged, and obtain average time lead.
Step 203, according to average time lead, obtain the average coverage distance of target BS.
Step 204, centered on target BS, in average coverage distance on the camber line of radius, radially to close to target
With pre-determined distance scope on base station and direction away from target BS, be more than or equal to according to communication sample downlink reception level-
80dBm, and the carrier/interface ratio for the sample that communicates is less than or equal to 12dBm screening conditions, removes each communication sample for meeting screening conditions,
Each efficient communication sample after being screened.
Specifically, centered on target BS, on the camber line that average coverage distance is radius, radially to close to target base
Stand and the direction away from target BS on pre-determined distance scope, communication sample is judged one by one, if communicating sample
Data meet condition one and condition two simultaneously, then the communication sample is invalid communication sample, is otherwise efficient communication sample.Condition
First, downlink reception level >=-80dBm；Condition two, carrier interference ratio C/I≤12dBm.Setting screening conditions one and screening conditions two is
Itd is proposed based on following reason：In the case where descending level value is relatively good, and signal quality is poor, illustrates that the communication sample will
It is repeater overlay area, or receiving external disturbance causes, is not belonging to proper communication sample category.It is real in Practical Project
Trample and middle find that such communication sample proportion probably 3% or so, according to normal distribution law, belongs to exceptional communication sample.By setting
Screening conditions are put, the communication sample of data exception can be removed, are advantageous to improve the analysis of follow-up each efficient communication sample
Efficiency and precision of analysis.
Step 205, uplink receiving level, the carrier frequency power take-off for obtaining target BS；According to terminal actual emission power
With the difference of uplink receiving level, up path loss is obtained；According to the difference of carrier frequency power take-off and downlink reception level, obtain
Obtain downlink path loss；According to up path loss and the difference of downlink path loss, the upper and lower of each efficient communication sample is obtained
Row equilibrium valve.
Specifically, up-downgoing equilibrium valve=up path loss-downlink path loss；
Up path loss=terminal actual emission power-uplink receiving level；
Downlink path loss=carrier frequency power take-off-downlink reception level；
Wherein, carrier frequency power take-off=carrier frequency initial power-carrier frequency power grade × 2+ power fine setting-combination loss-
Lower Mobile state power control grade × 2+ dynamic powers enhancing PBT (Power BoosterTechnology) gain；Wherein, at the beginning of carrier frequency
Beginning power be performance number corresponding to CF power type, carrier frequency power grade, power fine setting be carrier configuration power trim values,
Lower Mobile state power control grade, dynamic PBT gains are the arrange parameter of base station；For dynamic PBT yield values, if calling starts
Dynamic PBT functions, then dynamic PBT gains are 3dB, and otherwise dynamic PBT gains are 0dB；The value of combination loss, depending on base station
Transceiver station BTS unit types and combining mode, such as BTS312：One-level combining, coupling allocation unit module CDU, combining damage
Consume for 4.5db；Two level combining, coupling allocation unit module CDU+ Simple Combiner Units module SCU, combination loss 8db；
BTS3012：Dual density dual duplex cells D DPU+ combinings export, combination loss 4.3db.
Step 206, up-downgoing equilibrium valve is correspondingly subdivided into default M balance level, M is positive integer；If first
The efficient communication sample size in efficient communication sample size or m-th balance level in balance level, account for all effectively
The ratio of communication sample size is more than the first proportion threshold value, determines that target BS occurs the network coverage and shrinks failure.
Specifically, the up-downgoing equilibrium valve of several efficient communication samples obtained in step 205 is correspondingly subdivided into pre-
If several balance levels, the balance level reflects the balance of uplink downlink, it is preferred that M is set as 11, first
Proportion threshold value is set as 30%, i.e. balance level is divided into 1 grade to 11 grades, if the quantity of efficient communication sample is at 1 grade or 11
Proportion is more than 30% in level, then judges that target BS occurs the network coverage and shrinks failure.Up level value and descending level
Value measurement difference bigger (communication sample number is more in namely 1 grade or 11 grades of sections) illustrate to exist problem possibility it is bigger, it is necessary to
The parts such as carrier frequency, carrier frequency line, feeder head, feeder line connection and antenna are investigated one by one, confirmation causes main diversity electricity
The main reason for adjusted value is excessive is caused by which part, is found out the concrete reason for causing covering contraction problem, is finally done
Corresponding disposal.It should be noted that those skilled in the art can be according to the concrete condition of base station, to balance level and first
Proportion threshold value is set, and the application is not particularly limited to this.
Illustrate application of the present embodiment in fault detect is shunk in the network coverage below by way of two cases：
Failure is shunk in case one, the covering of Qianjiang Mt Jigong base station network
It is first according to step 201~step 205 and obtains the up-downgoing equilibrium valve of efficient communication sample, target BS is outdoor
Macro station, carrier frequency initial power are 40W, i.e. 46dBm；For dynamic PBT gains, the target BS does not start dynamic PBT gains,
So take 0dBm；Power fine setting is default value, is calculated by 0dBm；Combination loss takes 4.5dBm；Communicate sample collection time T
Calculated for the time 5 days (5*24 hours), obtain table 2.
Table 2, Qianjiang Mt Jigong base station communication sample balance level distribution statisticses
Found by analytical table 2, the base station of Qianjiang Mt Jigong cell has serious descending strong up weak situation, balance etc.
The accounting of level 11 is seriously higher, has exceeded 90%, more than default first proportion threshold value, therefore, it is determined that uplink loss mistake
Greatly, that the network coverage is shunk, it is necessary to which upper station checks receiving path and hardware system be present.To each bar line of base station behind upper station
Checked, when checking combiner line, find the combiner line of Mt Jigong cell and the company of another cell of Mt Jigong
There is reversed situation in line, through test after adjustment, corresponding index recovers normal, and on-the-spot test does not occur not can turn on situation yet, because
This judgement is due to that combiner wiring issue causes covering to shrink failure, after being corrected to the line of the cell, repetition measurement
As a result show, its overall coverage rate is obviously improved, and telephone traffic adds 2 times, and coverage distance adds 2km or so from 1km.By
Carry out the collection of communication sample after processing to the base station again, obtain such as the statistics of table 3.
Qianjiang Mt Jigong base station communication sample balance level distribution statisticses after table 3, processing
Failure is shunk in case two, the covering of tenth of the twelve Earthly Branches sun Houxi base station network
It is first according to step 201~step 205 and obtains the up-downgoing equilibrium valve of efficient communication sample, and is accordingly subdivided into 11
Individual balance level shows that 1 grade of communication sample proportion is up to 66%, illustrates that the base station has seriously up after being counted
Strong descending weak situation, therefore, it is determined that it, which has covering, shrinks failure.Specific data are as shown in table 4.
Table 4, tenth of the twelve Earthly Branches sun Houxi base station communication sample balance level distribution statisticses
Upper base station carries out exchange checking to each hardware, it is found that tenth of the twelve Earthly Branches sun Houxi cell is present and covered caused by combiner hidden failures
Lid contraction problem, before processing UE can not normal talking, call voice is clear after processing, can normal talking.It can be seen that by effective
The up-downgoing equilibrium valve of communication sample carries out statistical analysis, substantially increases the recall rate that failure is shunk in the network coverage, improves
Fault clearance efficiency.
Further, after step 205, up-downgoing equilibrium valve can also be correspondingly subdivided into default M balance etc.
Level, M is positive integer；It is if effectively logical in the efficient communication sample size or m-th balance level in first balance level
Believe sample size, account for the ratio of whole efficient communication sample sizes between the first proportion threshold value and the second proportion threshold value, and
The actual telephone traffic of target BS respective cell and the difference of standard telephone traffic, are more than the 3rd ratio with the ratio of standard telephone traffic
Threshold value, determine that target BS occurs the network coverage and shrinks failure.
Specifically, M is preferably 11, the first proportion threshold value is preferably 30%, and the second proportion threshold value is preferably 20%, the 3rd ratio
Example threshold value is preferably 10%；That is, balance level is divided into 1 grade to 11 grades, if the quantity of efficient communication sample at 1 grade or
Proportion is less than 30% and more than 20% in 11 grades, while the actual telephone traffic of target BS respective cell and standard telephone traffic
Difference, be more than 10% with the ratio of standard telephone traffic, then judge that network coverage contraction failure occurs for target BS.Generally, mark
The statistics of quasi- telephone traffic is and the telephone traffic average obtained in the case that traffic model is stable within the time of minimum one week,
It is also to be obtained in the case where traffic model is stable that actual acquisition, which obtains telephone traffic, is excluding situations such as traffic model is unstable
Afterwards, the failure such as network coverage contraction frequently can lead to telephone traffic reduction, but in Practical Project practice, received
During contracting breakdown judge, this point often have ignored.Therefore, the distribution of grades and telephone traffic for considering up-downgoing equilibrium valve are dashed forward
The situation of drop, can more efficiently and accurately determine whether target BS occurs the network coverage and shrink failure.
Fault detection method is shunk in the network coverage that the present embodiment provides, by obtaining in each communication sample of target BS
Timing Advance, and the All Time lead data to getting are averaged, and obtain average time lead and target
The average coverage distance in base station；Again centered on target BS, on the camber line that average coverage distance is radius, radially to close to mesh
Each communication sample is screened on mark base station and the direction of remote target BS, each efficient communication sample after being screened
This；Further according to the up-downgoing equilibrium valve of each efficient communication sample, determine whether target BS occurs the network coverage and shrink failure.
Realize that in time, actively, efficiently detecting the network coverage shrinks failure, help solve network coverage contraction failure in time.
Fig. 3 is the structural representation for the embodiment one that failure detector is shunk in inventive network covering, as shown in figure 3,
The device of the present embodiment includes：Acquisition module 1, the communication sample data of target BS is obtained for gathering, respectively communicate sample number
According to the Timing Advance for including user equipment (UE) corresponding to the communication sample.Computing module 2, for being carried to the All Time of acquisition
Preceding amount is averaged, and obtains average time lead；According to average time lead, obtain the average covering of target BS away from
From.Screening module 3, for centered on target BS, in average coverage distance on the camber line of radius, radially to close to target
Each communication sample data is screened with pre-determined distance scope on base station and the direction of remote target BS, it is each effective after being screened
Communicate sample.Wherein, acquisition module 1, it is additionally operable to obtain the up-downgoing equilibrium valve of each efficient communication sample.Determining module 4, is used for
According to up-downgoing equilibrium valve, determine whether target BS occurs the network coverage and shrink failure.
The device of the present embodiment, available for the technical scheme for performing embodiment of the method one shown in Fig. 1, its realization principle and skill
Art effect is similar, and here is omitted.
Failure detector is shunk in the network coverage that the present embodiment provides, by obtaining in each communication sample of target BS
Timing Advance, and the All Time lead data to getting are averaged, and obtain average time lead and target
The average coverage distance in base station；Again centered on target BS, on the camber line that average coverage distance is radius, radially to close to mesh
Each communication sample is screened on mark base station and the direction of remote target BS, each efficient communication sample after being screened
This；Further according to the up-downgoing equilibrium valve of each efficient communication sample, determine whether target BS occurs the network coverage and shrink failure.
Realize that in time, actively, efficiently detecting the network coverage shrinks failure, help solve network coverage contraction failure in time.
Further, on the basis of Fig. 3 shown devices, each sample data that communicates also includes：Corresponding to the communication sample
UE downlink reception level, carrier/interface ratio, terminal actual emission power, the downlink reception level of UE corresponding to the communication sample.Sieve
Modeling block 3, specifically for being more than or equal to -80dBm according to communication sample downlink reception level, and the carrier/interface ratio for the sample that communicates is less than
Screening conditions equal to 12dBm, remove each communication sample for meeting screening conditions, each efficient communication sample after being screened.
Acquisition module 1, uplink receiving level, carrier frequency power take-off specifically for obtaining target BS；According to terminal actual transmission work(
Rate and the difference of uplink receiving level, obtain up path loss；According to the difference of carrier frequency power take-off and downlink reception level,
Obtain downlink path loss；According to up path loss and the difference of downlink path loss, the upper of each efficient communication sample is obtained
Descending equilibrium valve.Determining module 4, specifically for up-downgoing equilibrium valve is correspondingly subdivided into default M balance level, M is just
Integer；If the efficient communication sample number in efficient communication sample size or m-th balance level in first balance level
Amount, the ratio for accounting for whole efficient communication sample sizes are more than the first proportion threshold value, determine that target BS occurs the network coverage and shunk
Failure.Or determining module 4, specifically for up-downgoing equilibrium valve is correspondingly subdivided into default M balance level, M is just whole
Number；If the efficient communication sample size in efficient communication sample size or m-th balance level in first balance level,
The ratio of whole efficient communication sample sizes is accounted between the first proportion threshold value and the second proportion threshold value, and target BS is corresponding
The actual telephone traffic of cell and the difference of standard telephone traffic, are more than the 3rd proportion threshold value with the ratio of standard telephone traffic, determine mesh
Mark base station and network coverage contraction failure occurs.
The device of the present embodiment, available for the technical scheme for performing embodiment of the method two shown in Fig. 2, its realization principle and skill
Art effect is similar, and here is omitted.
Failure detector is shunk in the network coverage that the present embodiment provides, by obtaining in each communication sample of target BS
Timing Advance, and the All Time lead data to getting are averaged, and obtain average time lead and target
The average coverage distance in base station；Again centered on target BS, on the camber line that average coverage distance is radius, radially to close to mesh
Each communication sample is screened on mark base station and the direction of remote target BS, each efficient communication sample after being screened
This；Further according to the up-downgoing equilibrium valve of each efficient communication sample, determine whether target BS occurs the network coverage and shrink failure.
Realize that in time, actively, efficiently detecting the network coverage shrinks failure, help solve network coverage contraction failure in time.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (6)
1. fault detection method is shunk in a kind of network coverage, it is characterised in that including：
Collection obtains the communication sample data of target BS, and each sample data that communicates includes user equipment corresponding to the communication sample
UE Timing Advance；
The All Time lead of acquisition is averaged, obtains average time lead；
According to the average time lead, the average coverage distance of the target BS is obtained；
It is on the camber line of radius, radially to close to the target in the average coverage distance centered on the target BS
Each communication sample data is screened with pre-determined distance scope on base station and the direction of the remote target BS, after obtaining screening
Each efficient communication sample；
The up-downgoing equilibrium valve of each efficient communication sample is obtained, and according to the up-downgoing equilibrium valve, determines the target BS
The network coverage whether occurs and shrinks failure；
Wherein, respectively communication sample data also includes：UE downlink reception level, carrier/interface ratio corresponding to the communication sample；The sieve
Select each communication sample data, each efficient communication sample after being screened, including：
- 80dBm is more than or equal to according to the communication sample downlink reception level, and the carrier/interface ratio of the communication sample is less than or equal to
12dBm screening conditions, remove each communication sample for meeting the screening conditions, each efficient communication sample after being screened
This；
Each communication sample data also includes：UE terminal actual emission power corresponding to the communication sample；The acquisition is each effectively
The up-downgoing equilibrium valve of communication sample, including：
Obtain uplink receiving level, the carrier frequency power take-off of the target BS；
According to the difference of the terminal actual emission power and the uplink receiving level, up path loss is obtained；
According to the difference of the carrier frequency power take-off and the downlink reception level, downlink path loss is obtained；
According to up path loss and the difference of the downlink path loss, the up-downgoing for obtaining each efficient communication sample is put down
Weighing apparatus value.
2. according to the method for claim 1, it is characterised in that it is described according to the up-downgoing equilibrium valve, determine the mesh
Whether mark base station, which occurs the network coverage, is shunk failure, including：
The up-downgoing equilibrium valve is correspondingly subdivided into default M balance level, the M is positive integer；If first balance
The efficient communication sample size in efficient communication sample size or m-th balance level in grade, accounts for whole efficient communications
The ratio of sample size is more than the first proportion threshold value, determines that the target BS occurs the network coverage and shrinks failure.
3. according to the method for claim 1, it is characterised in that it is described according to the up-downgoing equilibrium valve, determine the mesh
Whether mark base station, which occurs the network coverage, is shunk failure, including：
The up-downgoing equilibrium valve is correspondingly subdivided into default M balance level, the M is positive integer；
If the efficient communication sample number in efficient communication sample size or m-th balance level in first balance level
Amount, accounts for the ratio of whole efficient communication sample sizes between the first proportion threshold value and the second proportion threshold value, and the target
The actual telephone traffic of base station respective cell and the difference of standard telephone traffic, are more than the 3rd ratio with the ratio of the standard telephone traffic
Threshold value, determine that the target BS occurs the network coverage and shrinks failure.
4. failure detector is shunk in a kind of network coverage, it is characterised in that including：
Acquisition module, the communication sample data of target BS is obtained for gathering, and each sample data that communicates includes the communication sample
The Timing Advance of corresponding user equipment (UE)；
Computing module, for being averaged to the All Time lead of acquisition, obtain average time lead；According to described flat
Equal Timing Advance, obtain the average coverage distance of the target BS；
Screening module, for centered on the target BS, in the average coverage distance on the camber line of radius, radially to
Each communication sample number is screened close to the target BS and with pre-determined distance scope on the direction away from the target BS
According to each efficient communication sample after being screened；
The acquisition module, it is additionally operable to obtain the up-downgoing equilibrium valve of each efficient communication sample；
Determining module, for according to the up-downgoing equilibrium valve, determining whether the target BS occurs the network coverage and shrink event
Barrier；
Wherein, respectively communication sample data also includes：UE downlink reception level, carrier/interface ratio corresponding to the communication sample；
The screening module, specifically for being more than or equal to -80dBm according to the communication sample downlink reception level, and it is described logical
Believe that the carrier/interface ratio of sample is less than or equal to 12dBm screening conditions, remove each communication sample for meeting the screening conditions, obtain
Each efficient communication sample after to screening；
Each communication sample data also includes：UE terminal actual emission power corresponding to the communication sample；
The acquisition module, uplink receiving level, carrier frequency power take-off specifically for obtaining the target BS；According to described
The difference of terminal actual emission power and the uplink receiving level, obtain up path loss；According to the carrier frequency machine top work(
Rate and the difference of the downlink reception level, obtain downlink path loss；According to up path loss and the lower walking along the street
The difference of footpath loss, obtains the up-downgoing equilibrium valve of each efficient communication sample.
5. device according to claim 4, it is characterised in that the determining module, specifically for the up-downgoing is put down
Weighing apparatus value is correspondingly subdivided into default M balance level, and the M is positive integer；If the efficient communication sample in first balance level
Efficient communication sample size in this quantity or m-th balance level, the ratio for accounting for whole efficient communication sample sizes are more than
First proportion threshold value, determine that the target BS occurs the network coverage and shrinks failure.
6. device according to claim 4, it is characterised in that the determining module, specifically for the up-downgoing is put down
Weighing apparatus value is correspondingly subdivided into default M balance level, and the M is positive integer；If the efficient communication sample in first balance level
Efficient communication sample size in this quantity or m-th balance level, the ratio for accounting for whole efficient communication sample sizes are located at
Between first proportion threshold value and the second proportion threshold value, and the actual telephone traffic of the target BS respective cell and standard telephone traffic
Difference, be more than the 3rd proportion threshold value with the ratio of the standard telephone traffic, determine that the target BS occurs the network coverage and received
Contracting failure.
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| CN105101263B (en) * | 2015-06-26 | 2019-05-14 | 中国联合网络通信集团有限公司 | A kind of method and device of the performance parameter of determining antenna-feeder system |
| CN106358213B (en) * | 2016-09-22 | 2020-01-31 | 中国联合网络通信集团有限公司 | Evaluation method and device of indoor distribution system |
| CN107148041B (en) * | 2017-06-20 | 2020-12-18 | 义乌市智享通讯设备有限公司 | Method for detecting abnormal operation of wireless access equipment and wireless access equipment |
| CN108093420B (en) * | 2018-02-13 | 2021-05-14 | 中国联合网络通信集团有限公司 | Base station selection method, device and computer readable storage medium |
| CN110401967B (en) * | 2018-04-25 | 2022-10-21 | 中国移动通信有限公司研究院 | Information processing method, device, base station and computer storage medium |
| CN112785012B (en) * | 2021-01-25 | 2024-03-22 | 恒安嘉新（北京）科技股份公司 | Method and device for determining maintenance grade of base station, storage medium and electronic equipment |
| CN113365305B (en) * | 2021-06-29 | 2022-12-20 | 中国电信股份有限公司 | Network coverage data processing method, device, medium and electronic equipment |
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