CN107333280A - The detection method of user terminal and its adjacent cell - Google Patents
The detection method of user terminal and its adjacent cell Download PDFInfo
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- CN107333280A CN107333280A CN201610285280.4A CN201610285280A CN107333280A CN 107333280 A CN107333280 A CN 107333280A CN 201610285280 A CN201610285280 A CN 201610285280A CN 107333280 A CN107333280 A CN 107333280A
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- user terminal
- ranking circuit
- sss
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
Abstract
A kind of detection method of user terminal and its adjacent cell.Methods described includes：When receiving the data comprising master sync signal PSS of base station transmission, received data and local PSS sequences are made into related operation, multiple correlations are obtained；Respectively according to the correlation, calculating obtains corresponding average；Judge to calculate whether obtained each average is stablized；Corresponding correlation is chosen according to judged result to input to the first ranking circuit；The candidate peak for determining to detect for auxiliary synchronous signals SSS according to the output result of the first ranking circuit, and adjacent cell is detected for the SSS candidate peaks detected according to described.The delay of PSS detection-phases and power consumption in adjacent cell detection process can be reduced using methods described.
Description
Technical field
The present invention relates to communication technical field, and in particular to the detection side of a kind of user terminal and its adjacent cell
Method.
Background technology
In GSM, after user terminal start, by cell initial searching process, conjunction is resided in
In suitable serving cell, and progressively set up wireless communication procedure.Meanwhile, user terminal be also required to detection with
The neighbouring cell of the serving cell (referred to as " adjacent cell "), and to the communication matter of the adjacent cell detected
Amount be constantly tracked measurement, so as to be its progress cell reselection and switching prepare.
At present, after resident service cell, user terminal is when detecting adjacent cell, it will usually receive base station
What is sent includes master sync signal (PSS) data.Afterwards, user terminal to received data successively
PSS detections and SSS detections are carried out, to obtain the information of respective cell.
Specifically, user terminal is after the data comprising PSS of base station transmission are received, first to the number
SSS detections are carried out according to progress PSS detections, then to the data, so as to the knot detected according to SSS
Really, the information of respective cell is obtained.Wherein, PSS detections are carried out to the data, will the data
Make related operation with local PSS sequences, to produce multiple correlations.SSS detections are carried out to the data,
Detect that the correlation filtered out intercepts corresponding data according to PSS, then by the data being truncated to and locally
SSS sequences make related operation, so as to the result according to related operation, and obtaining final is used for cell
The candidate peak of detection, and according to the information of the candidate peak acquisition respective cell for cell detection, it is complete
The detection process of paired adjacent cell.
However, in above-mentioned adjacent cell detection process, the delay of detection is larger, it is difficult to meet user's request.
The content of the invention
The problem to be solved in the present invention is how to reduce the delay of PSS detection-phases in adjacent cell detection process
And power consumption.
To solve the above problems, the embodiments of the invention provide a kind of detection method of user terminal adjacent cell,
Methods described includes：When receiving the data comprising master sync signal PSS of base station transmission, it will be connect
The data received make related operation with local PSS sequences, obtain multiple correlations；Respectively according to the phase
Pass is worth, and calculating obtains corresponding average；Judge to calculate whether obtained each average is stablized；According to judgement knot
Fruit chooses corresponding correlation and inputted to the first ranking circuit, wherein, first ranking circuit is suitable to pair
The correlation inputted is ranked up, and chooses from the correlation inputted the maximum of the first predetermined number
Value；The candidate peak for determining to detect for auxiliary synchronous signals SSS according to the output result of the first ranking circuit,
And adjacent cell is detected for the SSS candidate peaks detected according to described.
Alternatively, it is described to judge to calculate whether obtained average is stablized, including it is following any one：According to
The default equal value stabilization moment whether is reached at the time of the average correspondence, to judge to calculate obtained average
Whether stablize；According to the fluctuation of average in the two neighboring period, to judge described to calculate obtained average
Whether stablize.
Alternatively, it is described to be inputted according to the corresponding correlation of judged result selection to the first ranking circuit, bag
Include：When the average for judging that calculating is obtained is unstable, by the correlation corresponding to unstable average
Input to first ranking circuit is ranked up；It is right when judging to calculate the obtained equal value stabilization
After correlation corresponding to stable average is screened, then input to first ranking circuit and arranged
Sequence.
Alternatively, the output result according to the first ranking circuit determines to be used for auxiliary synchronous signals SSS inspections
The candidate peak of survey, including：Chosen from the ranking results of the described first sequence circuit output more than first
The correlation of predetermined threshold value is used as the candidate peak detected for SSS.
Alternatively, first predetermined threshold value is related to the size of the average.
Alternatively, first ranking circuit is bubble sort circuit, and first predetermined number is bubbling
The depth of sequence.
Alternatively, the candidate peak that SSS detections are used for described in the basis is detected to adjacent cell, is wrapped
Include：According to the data for including SSS for the candidate peak interception that SSS is detected；By the number intercepted
Make related operation according to local SSS sequences；The correlation obtained respectively according to related operation, calculating is obtained
Corresponding average；Judge to calculate whether obtained each average is stablized；Corresponding phase is chosen according to judged result
Pass value is inputted to the second ranking circuit, wherein, second ranking circuit is suitable to the correlation to being inputted
It is ranked up, and chooses from the correlation inputted the maximum of the second predetermined number；According to described
The output result of two ranking circuits determines the candidate peak for cell detection, and according to the cell detection
Candidate peak adjacent cell is detected.
Alternatively, it is described to judge to calculate whether obtained average is stablized, including it is following any one：According to
The default equal value stabilization moment whether is reached at the time of the average correspondence, to judge to calculate obtained average
Whether stablize；According to the fluctuation of average in the two neighboring period, to judge described to calculate obtained average
Whether stablize..
Alternatively, it is described to be inputted according to the corresponding correlation of judged result selection to the second ranking circuit, bag
Include：When the average for judging that calculating is obtained is unstable, by the correlation corresponding to unstable average
Input to second ranking circuit is ranked up；It is right when judging to calculate the obtained equal value stabilization
After correlation corresponding to stable average is screened, then input to second ranking circuit and arranged
Sequence.
Alternatively, the output result according to second ranking circuit determines the time for cell detection
Peak value is selected, including：Chosen from the ranking results of the described second sequence circuit output more than the second default threshold
The correlation of value is used as the candidate peak for cell detection.
Alternatively, second predetermined threshold value makees what related operation was obtained with described and local SSS sequences
The size of the corresponding average of correlation is related.
Alternatively, second ranking circuit is bubble sort circuit, and second predetermined number is bubbling
The depth of sequence.
The embodiment of the present invention additionally provides a kind of user terminal, and the user terminal includes：Receiving unit,
Suitable for receiving the data for including master sync signal PSS that base station is sent；First arithmetic element, connects suitable for working as
When receiving the data comprising master sync signal PSS of base station transmission, by received data and local PSS
Sequence makees related operation, obtains multiple correlations；Second arithmetic element, suitable for respectively according to the correlation
Value, calculating obtains corresponding average；Judging unit, suitable for judging to calculate whether obtained each average is stablized；
Unit is chosen, is inputted suitable for choosing corresponding correlation according to judged result to the first ranking circuit, wherein,
First ranking circuit is suitable to be ranked up the correlation inputted, and from the correlation inputted
Choose the maximum of the first predetermined number；Detection unit, suitable for the output result according to the first ranking circuit
It is determined that the candidate peak detected for auxiliary synchronous signals SSS, and according to the candidate detected for SSS
Peak value is detected to adjacent cell.
Alternatively, whether the judging unit, reach default at the time of suitable for according to average correspondence
The equal value stabilization moment, to judge to calculate whether obtained average is stablized；Or according to the two neighboring period
The fluctuation of interior average, to judge whether the average that the calculating is obtained is stablized..
Alternatively, the selection unit includes：First chooses subelement, suitable for calculating what is obtained when judgement
When the average is unstable, the correlation corresponding to unstable average is inputted to the described first sequence electricity
Road is ranked up；Second chooses subelement, right suitable for when judging to calculate the obtained equal value stabilization
After correlation corresponding to stable average is screened, then input to first ranking circuit and arranged
Sequence.
Alternatively, the detection unit, suitable for being selected from the ranking results of the described first sequence circuit output
The correlation more than the first predetermined threshold value is taken as the candidate peak detected for SSS.
Alternatively, first predetermined threshold value is related to the size of the average.
Alternatively, first ranking circuit is integrated in the user terminal.
Alternatively, first ranking circuit is bubble sort circuit, and first predetermined number is bubbling
The depth of sequence.
Alternatively, the detection unit includes：Subelement is intercepted, suitable for being used for SSS detections according to described
Candidate peak interception include SSS data；Computing subelement, suitable for by the data intercepted and locally
SSS sequences make related operation；Computation subunit, suitable for the correlation obtained respectively according to related operation,
Calculating obtains corresponding average；Judgment sub-unit, suitable for judging to calculate whether obtained each average is stablized；
Subelement is chosen, is inputted suitable for choosing corresponding correlation according to judged result to the second ranking circuit, its
In, second ranking circuit is suitable to be ranked up the correlation that is inputted, and from the correlation inputted
The maximum of the second predetermined number is chosen in value；Detection sub-unit, suitable for according to second ranking circuit
Output result determine candidate peak for cell detection, and according to the candidate peak of the cell detection
Adjacent cell is detected.
Alternatively, whether the judgment sub-unit, reach default at the time of suitable for according to average correspondence
The equal value stabilization moment, to judge to calculate whether obtained average is stablized；Or according to the two neighboring time
The fluctuation of average in section, to judge whether the average that the calculating is obtained is stablized.
Alternatively, the selection subelement, including：First chooses module, suitable for being obtained when judgement calculating
The average it is unstable when, by the correlation corresponding to unstable average input to described second sequence
Circuit is ranked up；Second chooses module, right suitable for when judging to calculate the obtained equal value stabilization
After correlation corresponding to stable average is screened, then input to second ranking circuit and arranged
Sequence.
Alternatively, the detection sub-unit, suitable for from the ranking results of the described second sequence circuit output
The correlation chosen more than the second predetermined threshold value is used as the candidate peak for cell detection.
Alternatively, second predetermined threshold value makees what related operation was obtained with described and local SSS sequences
The size of the corresponding average of correlation is related.
Alternatively, second ranking circuit is integrated in the user terminal.
Alternatively, second ranking circuit is bubble sort circuit, and second predetermined number is bubbling
The depth of sequence.
Compared with prior art, technical scheme at least has advantages below：
Using such scheme, by after received data and local PSS sequences are made into related operation,
Respectively according to the correlation, calculating obtains corresponding average, and whether judges to calculate obtained each average
It is stable, and then corresponding correlation can be selected to input to the first ranking circuit according to judged result, finally
The candidate peak for determining to detect for SSS according to the output result of the first ranking circuit, to be used according to described
Adjacent cell is detected in the SSS candidate peaks detected.Due to the average calculated can be it is stable,
Can also be unstable, therefore input to the correlation of the first ranking circuit can be stable average institute
Correlation corresponding to corresponding correlation or unstable average.That is, no matter counting
Whether obtained average is stablized, and can input to the first ranking circuit and be ranked up, and carries out follow-up
Detection, and just need not input corresponding correlation to the first ranking circuit after the average of stabilization to be obtained,
Therefore the delay of PSS detection-phases in adjacent cell detection process can be reduced, shortens whole adjacent cell detection
Time needed for process, improve detection efficiency.In addition, selected section correlation is inputted to the first sequence electricity
Road is ranked up, and all correlations of not according to determine the candidate peak detected eventually for SSS, because
This can effectively reduce the power consumption of first ranking circuit, also can just lower in adjacent cell detection process
The power consumption of PSS detection-phases.
Further, by the way that the correlation corresponding to unstable average is directly inputted into the first row
Sequence circuit is ranked up, and after being screened to the correlation corresponding to stable average, then input to institute
The first ranking circuit is stated to be ranked up, can effective control input peak value into the first ranking circuit quantity,
Reduce the power consumption of first ranking circuit.Also, it can be controlled finally by first ranking circuit
What is obtained is used for the quantity for the peak value that SSS is detected, reduces the complexity of subsequent treatment.
Further, by choosing pre- more than first from the ranking results of the described first sequence circuit output
If the correlation of threshold value, it is used as the candidate peak detected for SSS, input can be removed to the
Correlation in one ranking circuit corresponding to unstable average, improves the accuracy of SSS detections.
Further, because first predetermined threshold value is related to the size of the average, therefore, utilize
First predetermined threshold value, more accurately can select use from the ranking results of the first sequence circuit output
The candidate peak detected in SSS, further improves the accuracy of SSS detections.
Further, get after the candidate peak detected for SSS, be used for SSS detections according to described
Candidate peak interception include SSS data, it is then the data intercepted are related to local SSS sequences work
Computing, and then by judging whether the average that related operation is obtained corresponding to correlation is stablized, to choose phase
The correlation answered is inputted to the second ranking circuit and is ranked up, to obtain the candidate eventually for cell detection
Peak value.Because the average that related operation obtains corresponding to correlation can be stable or unstable
Fixed, therefore input is to the correlation that the correlation of the second ranking circuit can be corresponding to stable average,
It can also be the correlation corresponding to unstable average.That is, no matter calculating obtained average is
No stabilization, can input to the second ranking circuit and be ranked up, and carry out subsequent detection, and need not treat
Just corresponding correlation is inputted to the first ranking circuit after the average stablized, therefore neighbour can be reduced
The delay of SSS detection-phases during cell detection, shortens the time needed for whole adjacent cell detection process,
Improve detection efficiency.It is ranked up in addition, selected section correlation is inputted to the second ranking circuit, and root
The peak value eventually for cell detection is determined according to the output of second ranking circuit, and not according to is all
Correlation determines the peak value eventually for cell detection, can effectively reduce the work(of second ranking circuit
Consumption, also can just reduce the power consumption of SSS detection-phases in adjacent cell detection process.
Further, by the way that the correlation corresponding to unstable average is directly inputted into the second row
Sequence circuit is ranked up, and after being screened to the correlation corresponding to stable average, then input to institute
The second ranking circuit is stated to be ranked up, can effective control input peak value into the second ranking circuit quantity,
Reduce the power consumption of second ranking circuit.Also, it can be controlled finally by second ranking circuit
The quantity of the peak value for cell detection obtained, reduces the complexity of subsequent treatment.
Further, by choosing pre- more than second from the ranking results of the described second sequence circuit output
If the correlation of threshold value, be used as it is described be used for the candidate peak of cell detection, input can be removed to the
Correlation in two ranking circuits corresponding to unstable average, improves the accuracy of cell detection.
Further, because second predetermined threshold value is related to the size of the average, therefore, utilize
Second predetermined threshold value, more accurately can select use from the ranking results of the second sequence circuit output
In the candidate peak of cell detection, the accuracy of cell detection is further improved.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the detection method of adjacent cell in the embodiment of the present invention；
Fig. 2 is a kind of flow chart of the detection method of another adjacent cell in the embodiment of the present invention；
Fig. 3 is a kind of method flow diagram of SSS detections in the embodiment of the present invention；
Fig. 4 is the method flow diagram of another SSS detections in the embodiment of the present invention；
Fig. 5 is a kind of structural representation of user terminal in the embodiment of the present invention；
Fig. 6 is a kind of structural representation of detection unit in the embodiment of the present invention.
Embodiment
At present, user terminal is after the data comprising PSS of base station transmission are received, first to the data
PSS detections are carried out, then SSS detections are carried out to the data, so as to the result detected according to SSS,
Obtain the information of respective cell.
In PSS detection-phases, the data and local PSS sequences are made into related operation and obtain multiple peak values
Afterwards, respectively according to the corresponding average of each peak computational, after the average of stabilization to be obtained, according to it is described
Value determines corresponding peak threshold, then is respectively compared each peak value with the peak threshold, will be greater than
The peak value of the peak threshold is used as the candidate peak detected for SSS.
In SSS detection-phases, corresponding data are intercepted according to the candidate peak detected for SSS, then will
The data intercepted make related operation with local SSS sequences, and then are counted respectively according to the peak value of related operation
Calculate after corresponding average, the average of stabilization to be obtained, corresponding peak threshold determined according to the average,
Finally each peak value is compared with the peak threshold respectively, the peak value conduct of the peak threshold is will be greater than
Candidate peak for cell detection.
However, in above-mentioned detection process, either in PSS detection-phases, or in SSS detection-phases,
It is both needed to that after obtaining stable average subsequent detection could be carried out, causes corresponding detection-phase to exist necessarily
Delay.In addition, it is determined that during for the SSS candidate peaks detected or candidate peak for cell detection,
All correlations need to be compared with corresponding peak threshold, could finally determine corresponding candidate
Peak value, causes the power consumption for doing corresponding detection-phase higher.
In view of the above-mentioned problems, The embodiment provides a kind of detection method of user terminal adjacent cell,
Using methods described, when PSS detection-phases determine the candidate peak for SSS detections, pass through and judge
Whether the corresponding average of each peak value is stablized, to select corresponding correlation to input to the first ranking circuit, most
The candidate peak detected for SSS is determined according to the output result of the first ranking circuit eventually.Due to no matter counting
Whether obtained average is stablized, and can input to the first ranking circuit and be ranked up, and carries out follow-up
Detection, and just need not input corresponding correlation to the first ranking circuit after the average of stabilization to be obtained,
Therefore the delay of PSS detection-phases in adjacent cell detection process can be reduced.In addition, selected section is related
Value input to the first ranking circuit is ranked up, rather than all correlations are inputted to the first sequence electricity
Road is ranked up, and can effectively be reduced the power consumption of first ranking circuit, also can just be reduced adjacent cell
The power consumption of PSS detection-phases in detection process.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings
The specific embodiment of the present invention is explained.
Reference picture 1, the embodiments of the invention provide a kind of detection method of user terminal adjacent cell, the side
Method may include steps of：
Step 11, judge whether to receive the data for including master sync signal PSS that base station is sent.
In specific implementation, user terminal is resided in after suitable serving cell, can receive multiple base stations
Can be comprising information such as PSS, SSS in the data of transmission, the data, the data sent to each base station
It is both needed to carry out the detection of adjacent cell.
When receiving the data comprising PSS of base station transmission, step 12 is performed, step is otherwise continued executing with
Rapid 11.
Step 12, received data and local PSS sequences are made into related operation, obtains multiple correlations
Value.
In specific implementation, related operation refers to and two or more variable elements for possessing correlation is entered
Row analysis, so as to weigh the computing of the related intimate degree of two Variable Factors.In embodiments of the invention
In, two sequences are made with related operation, that is, calculates the computing of the level of intimate between two sequences.
In specific implementation, the local PSS sequences can be obtained ahead of time and be stored in the user terminal
's.Get after the data comprising master sync signal PSS, by the data and local PSS sequences
Correlation is carried out, multiple correlations are obtained, each correlation is a peak value.
In an embodiment of the present invention, the 1st correlation, the 2nd correlation ... ..., n-th of phase
Pass is worth ... ..., n-th correlation, is arranged according to the time order and function order of sampling, wherein, n
And N is positive integer, and n≤N.
Step 13, respectively according to the correlation, calculating obtains corresponding average.
In specific implementation, according to n-th of correlation cor_v (n), it can be calculated and obtained using a variety of methods
Corresponding average noise_v (n).For example, mean value computation parameter can be obtained previously according to limited number of time experiment
Alpha1, recycles the corresponding average noise_v (n-1) of (n-1)th correlation cor_v (n-1) and by as follows
Formula calculates and obtains noise_v (n)：
Noise_v (n)=(1-alpha1) * noise_v (n-1)+cor_v (n) * alpha1 (1)
It is, of course, also possible to the corresponding average of each correlation is calculated using other methods, also, it is each equal
The computational methods of value can be with identical, can also be different.But no matter which kind of method each correlation is calculated using
Corresponding average, is not construed as limiting the invention, and within protection scope of the present invention.
Step 14, judge to calculate whether obtained each average is stablized.
In specific implementation, step 14 can be performed after an average is often obtained, can also obtain many
Step 14 is performed after individual average, step 14 is performed again after whole averages can also be obtained.
, both can be equal one by one when judging whether the corresponding average of each correlation is stable in specific implementation
Value is judged, multiple averages can also be judged simultaneously.Also, the order judged is unrestricted, such as
It can one by one be judged according to the order by 0~N, can also one by one be sentenced according to the order by N~0
It is disconnected, it can also be judged using other orders, as long as the corresponding average of all correlations has all judged
Finish.
In specific implementation, it can judge whether each average is stablized using a variety of methods.To judge n-th
Exemplified by whether the corresponding average noise_v (n) of correlation cor_v (n) are stable, in one embodiment of this invention,
At the time of can pre-estimating corresponding to equal value stabilization, and by judging at the time of average noise_v (n) correspondences
Whether the default equal value stabilization moment is reached, to judge whether average noise_v (n) stablizes.In the present invention
Another embodiment in, it is default whether fluctuation that can also be by calculating average in the adjacent both ends time is less than
The mode of value, to judge whether average noise_v (n) stablizes, such as, can first calculate noise_v (n-k)
To noise_v (n) average value s1, and calculating noise_v (n) to noise_v (n+k) average value s2,
Judge whether s1 and s2 difference is less than preset value, judge whether noise_v (n) stablizes with this.
The difference between noise_v (n) and noise_v (n-1) can be calculated, is less than preset difference value in the difference
When, judge that noise_v (n) is stable, otherwise judge that noise_v (n) is unstable.It is, of course, also possible to using it
Its method judges whether noise_v (n) stablizes, specific unrestricted.
Step 15, corresponding correlation is chosen according to judged result to input to first ranking circuit.
In specific implementation, first ranking circuit is suitable to be ranked up the correlation inputted, and
The maximum of the first predetermined number is chosen from the correlation inputted.Wherein, first predetermined number
It can be configured according to specific ranking circuit.Such as, first ranking circuit can be bubbling row
Sequence circuit, first predetermined number is the depth of bubble sort.By setting the first sequence electricity
Road, it is possible to reduce resulting is used for the quantity for the candidate peak that SSS is detected, it is possible thereby to reduce follow-up
The complexity of the processing procedure such as smooth.
Specifically, when the average for judging that calculating is obtained is unstable, by corresponding to unstable average
Correlation input to first ranking circuit and be ranked up, that is to say, that it is not steady in the average
Before fixed, corresponding correlation is inputted to first ranking circuit.
When judging to calculate the obtained equal value stabilization, the correlation corresponding to stable average is carried out
After screening, then input to first ranking circuit and be ranked up.Such as, it can be determined that stable average
Whether corresponding correlation cor_v (n) is more than the second predetermined threshold value, and then pre- more than second in cor_v (n)
If during threshold value, cor_v (n) inputs to first ranking circuit are ranked up.By rationally setting institute
The second predetermined threshold value is stated, the power consumption of the first ranking circuit can be effectively reduced.Under normal circumstances, average is treated
After stable, the number more than the correlation of the second predetermined threshold value can drop to less than 0.1%, and this is for saving
The effect of the power consumption of first ranking circuit is apparent.
Step 16, determine what is detected for auxiliary synchronous signals SSS according to the output result of the first ranking circuit
Candidate peak, and adjacent cell is detected for the SSS candidate peaks detected according to described.
In specific implementation, because unstable correlation enters the first ranking circuit, therefore, in order to
These false correlations are removed, can be by the ranking results of the described first sequence circuit output respectively at first
Predetermined threshold value is compared, and therefrom chooses the correlation more than the first predetermined threshold value, is used for SSS as described
The candidate peak of detection.
In specific implementation, in order to improve the accuracy of detection, first predetermined threshold value can be according to institute
The size for stating average is configured, such as, first predetermined threshold value can for the average with it is corresponding
The product of adjusting thresholds parameter, i.e. the first predetermined threshold value=average * adjusting thresholds parameters.It is, of course, also possible to
Using other methods, first predetermined threshold value is set, it is specific unrestricted.
Fig. 2 is the detection method of user terminal adjacent cell in another embodiment of the present invention.Shown in Fig. 2
In embodiment, obtain after correlation, in PSS detection-phases, according to the order by 0~N to each correlation
Value calculates average one by one, and often obtains judging whether stabilization after an average.Below to shown in Fig. 2
Detection method is described in detail：
Reference picture 2, methods described may include steps of：
Step 21, judge whether to receive the data for including PSS that base station is sent.
When receiving the data comprising PSS of base station transmission, step 22 is performed, step is otherwise continued executing with
Rapid 21.
Step 22, received data and local PSS sequences are made into related operation, obtains multiple correlations
Value.
On step 21 and 22, it can specifically respectively refer to above-mentioned real to step 11 and 12 description progress
Apply, here is omitted.
Step 23, the corresponding average of n-th of correlation is calculated.
Step 24, judge whether the corresponding average cor_v (n) of n-th of correlation stablizes.
In specific implementation, n initial value is 0.That is, according to the order by 0~N, one by one
Value is judged, i.e., first judge whether cor_v (0) stablizes, and performs subsequent step according to judged result, then
Judge cor_v (1), and subsequent step ... ... is performed according to judged result, finally judge that cor_v (N) is
No stabilization, and subsequent step is performed according to judged result.
When the corresponding average noise_v (n) of n-th of correlation cor_v (n) is stable, step 26 is performed, it is no
Then perform step 25.
Step 25, by cor_v (n) inputs to the first ranking circuit.
Judged by the stability one by one to each average, and after the equal value stabilization, that is, input to
First ranking circuit, can be with effectively save memory space.In embodiments of the invention, first sequence
Circuit can be bubble sort circuit.
On step 23~25, the above-mentioned description to step 13~15 can be specifically respectively referred to, herein no longer
Repeat.
Step 26, judge whether cor_v (n) is more than the second predetermined threshold value T2.
When cor_v (n) is more than the second predetermined threshold value T2, step 25 is performed, step 27 is otherwise performed.
Step 27, judge whether n is equal to N.
As n=N, step 29 is performed, step 28 is otherwise performed.
Step 28, n++.
That is, calculating the corresponding average of (n+1)th correlation, and then judge whether it stablizes.
Step 29, determine what is detected for auxiliary synchronous signals SSS according to the output result of the first ranking circuit
Candidate peak, and adjacent cell is detected for the SSS candidate peaks detected according to described.
In specific implementation, the output result of the first ranking circuit can be entered respectively at the first predetermined threshold value
Row compares, and therefrom chooses the correlation more than the first predetermined threshold value, is used as the time detected for SSS
Select peak value.
As shown in the above, the detection method of middle user terminal adjacent cell is implemented using the present invention,
When PSS detection-phases determine the candidate peak for SSS detections, by judging the corresponding average of each peak value
Whether stablize, to select corresponding correlation to input to the first ranking circuit, finally according to the first sequence electricity
The output result on road determines the candidate peak detected for SSS, can not only reduce adjacent cell detection process
The delay of middle PSS detection-phases, and the work(of PSS detection-phases in adjacent cell detection process can be reduced
Consumption.
In specific implementation, in order to reduce power consumption and the delay of SSS detection-phases, obtain for SSS inspections
After the candidate peak of survey, it is referred to the method shown in Fig. 3 and carries out implementing SSS detections.
Specifically, methods described may include steps of：
Step 31, according to the data for including SSS for the candidate peak interception that SSS is detected.
In specific implementation, obtain after the candidate peak detected for SSS, the number sent from base station
In, interception again includes SSS data.
Step 32, the data intercepted and local SSS sequences are made into related operation.
It is truncated to after the data comprising SSS, the data are related to local PSS sequences progress, obtain
Multiple correlations, each correlation is a peak value.
In an embodiment of the present invention, the 1st correlation, the 2nd correlation ... ..., m-th of phase
Pass is worth ... ..., m-th correlation, is arranged according to the time order and function order of sampling, wherein, m
And M is positive integer, and m≤M.
Step 33, the correlation obtained respectively according to related operation, calculating obtains corresponding average.
In specific implementation, according to m-th of correlation cor_u (m), it can be calculated using a variety of methods
To corresponding average noise_u (m).For example, mean value computation parameter can be obtained previously according to limited number of time experiment
Alpha2, recycles the corresponding average noise_u (m-1) of the m-1 correlation cor_u (m-1) and by such as
Lower formula calculates and obtains noise_u (m)：
Noise_u (m)=(1-alpha2) * noise_u (m-1)+cor_v (m) * alpha2 (2)
It is, of course, also possible to the corresponding average of each correlation is calculated using other methods, also, it is each equal
The computational methods of value can be with identical, can also be different.But no matter which kind of method each correlation is calculated using
Corresponding average, is not construed as limiting the invention, and within protection scope of the present invention.
Step 34, judge to calculate whether obtained each average is stablized.
In specific implementation, step 34 can be performed after an average is often obtained, can also obtain many
Step 34 is performed after individual average, step 34 is performed again after whole averages can also be obtained.
, both can be equal one by one when judging whether the corresponding average of each correlation is stable in specific implementation
Value is judged, multiple averages can also be judged simultaneously.Also, the order judged is unrestricted, such as
It can one by one be judged according to the order by 0~M, can also one by one be sentenced according to the order by M~0
It is disconnected, it can also be judged using other orders, as long as the corresponding average of all correlations has all judged
Finish.
In specific implementation, it can judge whether each average is stablized using a variety of methods.To judge m-th
Exemplified by whether the corresponding average noise_u (m) of correlation cor_u (m) are stable, in one embodiment of this invention,
At the time of can pre-estimating corresponding to equal value stabilization, and by judging at the time of average noise_u (m) correspondences
Whether the default equal value stabilization moment is reached, to judge whether average noise_u (m) stablizes.In the present invention
Another embodiment in, it is default whether fluctuation that can also be by calculating average in the adjacent both ends time is less than
The mode of value, to judge whether average noise_u (m) stablizes, such as, can first calculate noise_u (m-k)
To noise_u (m) average value s1, and calculating noise_u (m) to noise_u (m+k) average value s2,
Judge whether s1 and s2 difference is less than preset value, judge whether noise_u (m) stablizes with this.
Step 35, corresponding correlation is chosen according to judged result to input to the second ranking circuit.
In specific implementation, second ranking circuit is suitable to be ranked up the correlation inputted, and
The maximum of the second predetermined number is chosen from the correlation inputted.Wherein, second predetermined number
It can be configured according to specific ranking circuit.Such as, second ranking circuit can be bubbling row
Sequence circuit, second predetermined number is the depth of bubble sort.By setting the second sequence electricity
Road, it is possible to reduce the quantity of the resulting candidate peak for cell detection, it is possible thereby to reduce follow-up
The complexity of the processing procedure such as smooth.
Specifically, when the average for judging that calculating is obtained is unstable, by corresponding to unstable average
Correlation input to second ranking circuit and be ranked up, that is to say, that it is not steady in the average
Before fixed, corresponding correlation is inputted to second ranking circuit.
When judging to calculate the obtained equal value stabilization, the correlation corresponding to stable average is carried out
After screening, then input to second ranking circuit and be ranked up.Such as, it can be determined that stable average
Whether corresponding correlation cor_u (m) is more than the 3rd predetermined threshold value, and then is more than the 3rd in cor_u (m)
During predetermined threshold value, cor_u (m) inputs to second ranking circuit are ranked up.By rationally setting
3rd predetermined threshold value, can effectively reduce the power consumption of the second ranking circuit.Under normal circumstances, treat
After value stabilization, the number more than the correlation of the 3rd predetermined threshold value can drop to less than 0.1%, and this is for section
The effect for saving the power consumption of the second ranking circuit is apparent.
Step 36, the candidate peak for cell detection is determined according to the output result of second ranking circuit
Value, and adjacent cell is detected according to the candidate peak of the cell detection.
In specific implementation, because unstable correlation enters the second ranking circuit, therefore, in order to
These false correlations are removed, can be by the ranking results of the described second sequence circuit output respectively at second
Predetermined threshold value is compared, and therefrom chooses the correlation more than the second predetermined threshold value, as described for small
The candidate peak of area's detection.
In specific implementation, in order to improve the accuracy of detection, second predetermined threshold value can be according to institute
The size for stating average is configured, such as, second predetermined threshold value can for the average with it is corresponding
The product of adjusting thresholds parameter, i.e. the second predetermined threshold value=average * adjusting thresholds parameters.It is, of course, also possible to
Using other methods, second predetermined threshold value is set, it is specific unrestricted.
Fig. 4 is the detection method of user terminal adjacent cell in another embodiment of the present invention.Shown in Fig. 4
In embodiment, obtain after correlation, in SSS detection-phases, according to the order by 0~M to each correlation
Value calculates average one by one, and often obtains judging whether stabilization after an average.Below to shown in Fig. 4
Detection method is described in detail：
Reference picture 4, methods described may include steps of：
Step 41, according to the data for including SSS for the candidate peak interception that SSS is detected.
Step 42, the data intercepted and local SSS sequences are made into related operation.
On step 41 and 42, it can specifically respectively refer to above-mentioned real to step 31 and 32 description progress
Apply, here is omitted.
Step 43, the corresponding average of m-th of correlation is calculated.
Step 44, judge whether the corresponding average cor_u (m) of m-th of correlation stablizes.
In specific implementation, m initial value is 0.That is, according to the order by 0~M, one by one
Average is judged, i.e., first judge whether cor_u (0) stablizes, and performs subsequent step according to judged result,
Cor_u (1) is judged again, and subsequent step ... ... is performed according to judged result, finally judges that cor_u (M) is
No stabilization, and subsequent step is performed according to judged result.
When the corresponding average noise_u (m) of m-th of correlation cor_u (m) is stable, step 46 is performed,
Otherwise step 45 is performed.
Step 45, by cor_u (m) inputs to the second ranking circuit.
Judged by the stability to average one by one, and after the equal value stabilization, that is, inputted to
Two ranking circuits, can be with effectively save memory space.In embodiments of the invention, the second sequence electricity
Road can be bubble sort circuit.
On step 43~45, the above-mentioned description to step 33~35 can be specifically respectively referred to, herein no longer
Repeat.
Step 46, judge whether cor_u (m) is more than the 3rd predetermined threshold value T3.
When cor_u (m) is more than the 3rd predetermined threshold value T3, step 45 is performed, step 47 is otherwise performed.
Step 47, judge whether m is equal to M.
As m=M, step 49 is performed, step 48 is otherwise performed.
Step 48, m++.
That is, calculating the corresponding average of the m+1 correlation, and then judge whether it stablizes.
Step 49, determine what is detected for auxiliary synchronous signals SSS according to the output result of the first ranking circuit
Candidate peak, and adjacent cell is detected for the SSS candidate peaks detected according to described.
In specific implementation, the output result of the first ranking circuit can be entered respectively at the first predetermined threshold value
Row compares, and therefrom chooses the correlation more than the first predetermined threshold value, is used as the time detected for SSS
Select peak value.
From above-described embodiment, get after the candidate peak detected for SSS, be used for according to described
The candidate peak interception of SSS detections includes SSS data, then by the data intercepted and local SSS sequences
Row make related operation, and then by judging whether the average that related operation is obtained corresponding to correlation is stablized,
Input to the second ranking circuit choosing corresponding correlation and be ranked up, to obtain eventually for cell inspection
The candidate peak of survey, can not only reduce the delay of SSS detection-phases in adjacent cell detection process, shorten
Time needed for whole adjacent cell detection process, improve detection efficiency.And adjacent cell detection can be reduced
During SSS detection-phases power consumption.
In order that those skilled in the art more fully understand and realized the present invention, below to above-mentioned user terminal
The corresponding user terminal of detection method of adjacent cell is described in detail.
A kind of reference picture 5, user terminal of the embodiment of the present invention, the user terminal can include：Receive
Unit 51, the first arithmetic element 52, the second arithmetic element 53, judging unit 54, choose unit 55 with
And detection unit 56.Wherein：
The receiving unit 51, suitable for receiving the data for including master sync signal PSS that base station is sent；
First arithmetic element 52, suitable for when receive base station transmission comprising master sync signal PSS
During data, received data and local PSS sequences are made into related operation, multiple correlations are obtained；
Second arithmetic element 53, suitable for according to the correlation, calculating obtains corresponding average respectively；
The judging unit 54, suitable for judging to calculate whether obtained each average is stablized；
The selection unit 55, is inputted to the first sequence suitable for choosing corresponding correlation according to judged result
Circuit, wherein, first ranking circuit is suitable to be ranked up the correlation inputted, and defeated from institute
The maximum of the first predetermined number is chosen in the correlation entered；
The detection unit 56, suitable for being determined to be used for auxiliary synchronous letter according to the output result of the first ranking circuit
The candidate peak of number SSS detection, and adjacent cell is carried out for the candidate peak that SSS is detected according to described
Detection.
It should be noted that in an embodiment of the present invention, second arithmetic element 53 can use many
Kind of method calculates the average obtained corresponding to each correlation, and each average computational methods can with identical,
Can also be different.
It should be noted that in specific implementation, both can often obtain one in second arithmetic element 53
After average, i.e., determine whether to be input to first ranking circuit by the judging unit 54,
It can be determined after second arithmetic element 53 obtains multiple averages, then by the judging unit 54
First ranking circuit whether is input to, whole can also be obtained in second arithmetic element 53
After average, then by the judging unit 54 determine whether to be input to first ranking circuit, have
Body is unrestricted.
As shown in the above, the user terminal in the embodiment of the present invention, determines to use in PSS detection-phases
When the candidate peak that SSS is detected, judge whether the corresponding average of each peak value is steady by judging unit 54
It is fixed, and then select corresponding correlation to input to the first ranking circuit, finally by examining by selection unit 55
The candidate peak that unit 56 determines to detect for SSS according to the output result of the first ranking circuit is surveyed, not only
The delay of PSS detection-phases in adjacent cell detection process can be reduced, and adjacent cell detection can be reduced
During PSS detection-phases power consumption.
In specific implementation, whether the judging unit 54 reaches at the time of suitable for according to average correspondence
To the default equal value stabilization moment, to judge to calculate whether obtained average is stablized；Or according to adjacent two
The fluctuation of average in the individual period, to judge whether the average that the calculating is obtained is stablized.
In specific implementation, the selection unit 55 can include：First chooses subelement 551 and the
Two choose subelement 552.Wherein：
Described first chooses subelement 551, suitable for when the average for judging that calculating is obtained is unstable, inciting somebody to action
Correlation corresponding to unstable average is inputted to first ranking circuit and is ranked up；
Described second chooses subelement 552, suitable for when judging to calculate the obtained equal value stabilization, to steady
After correlation corresponding to fixed average is screened, then input to first ranking circuit and be ranked up.
In specific implementation, the detection unit 56, suitable for the sequence from the described first sequence circuit output
As a result it is middle to choose the correlation more than the first predetermined threshold value as the candidate peak detected for SSS.
In specific implementation, first predetermined threshold value is related to the size of the average.
In specific implementation, first ranking circuit can be independently arranged with the user terminal, can be with
It is integrated in the user terminal.That is, the user terminal can include first ranking circuit.
In specific implementation, first ranking circuit can be bubble sort circuit, and described first presets
Number is the depth of bubble sort.
In specific implementation, reference picture 6, the detection unit 56 can include：Subelement 61 is intercepted,
Computing subelement 62, computation subunit 63, judgment sub-unit 64 chooses subelement 65 and detection
Unit 66.Wherein：
The interception subelement 61, suitable for including SSS according to the candidate peak interception for SSS detections
Data；
The computing subelement 62, suitable for the data intercepted and local SSS sequences are made into related operation；
The computation subunit 63, suitable for the correlation obtained respectively according to related operation, calculating is obtained pair
The average answered；
The judgment sub-unit 64, suitable for judging to calculate whether obtained each average is stablized；
The selection subelement 65, is inputted to second row suitable for choosing corresponding correlation according to judged result
Sequence circuit, wherein, second ranking circuit is suitable to be ranked up the correlation that is inputted, and from institute
The maximum of the second predetermined number is chosen in the correlation of input；
The detection sub-unit 66, suitable for being determined according to the output result of second ranking circuit for small
The candidate peak of area's detection, and adjacent cell is detected according to the candidate peak of the cell detection.
It should be noted that in an embodiment of the present invention, the computation subunit 63 can use a variety of
Method, which is calculated, obtains average corresponding to each correlation, and each average computational methods can with identical,
Can also be different.
It should be noted that in specific implementation, both can often obtain one in the computation subunit 63 equal
After value, i.e., determine whether to be input to first ranking circuit by the judgment sub-unit 64,
It can be determined after the computation subunit 63 obtains multiple averages, then by the judgment sub-unit 64
First ranking circuit whether is input to, can also be obtained in the computation subunit 63 all
After value, then by the judgment sub-unit 64 determine whether to be input to first ranking circuit, have
Body is unrestricted.
In specific implementation, the judgment sub-unit 64, suitable for according to the average correspondence at the time of whether
The default equal value stabilization moment is reached, to judge to calculate whether obtained average is stablized；Or according to adjacent
The fluctuation of average in two periods, to judge whether the average that the calculating is obtained is stablized.
In specific implementation, the selection subelement 65 can include：First chooses module 651 and the
Two choose module 652.Wherein：
Described first chooses module 651, suitable for when judge to calculate the obtained average it is unstable when, will not
Correlation corresponding to stable average, which is inputted to second ranking circuit, to be ranked up；
Described second chooses module 652, suitable for when judging to calculate the obtained equal value stabilization, to stable
Average corresponding to correlation screened after, then input to second ranking circuit and be ranked up.
In specific implementation, the detection sub-unit 66, suitable for the row from the described second sequence circuit output
The correlation more than the second predetermined threshold value is chosen in sequence result as the candidate peak for cell detection.
In specific implementation, second predetermined threshold value makees related operation institute with described and local SSS sequences
The size of the corresponding average of correlation of acquisition is related.
In specific implementation, second ranking circuit can be independently arranged with the user terminal, can be with
It is integrated in the user terminal.That is, the user terminal can include second ranking circuit.
In specific implementation, second ranking circuit can be bubble sort circuit, and described second presets
Number is the depth of bubble sort.
When SSS detection-phases determine the candidate peak for cell detection, by judgment sub-unit 64 come
Judge whether the corresponding average of each peak value is stablized, and then select by selection subelement 65 corresponding correlation
Input is finally true according to the output result of the first ranking circuit by detection sub-unit 66 to the first ranking circuit
Surely it is used for the candidate peak of cell detection, can not only reduces SSS detection-phases in adjacent cell detection process
Delay, and the power consumption of SSS detection-phases in adjacent cell detection process can be reduced.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment
Rapid to can be by program to instruct the hardware of correlation to complete, the program can be stored in a computer can
Read in storage medium, storage medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, it can make various changes or modifications, therefore the guarantor of the present invention
Shield scope should be defined by claim limited range.
Claims (26)
1. a kind of detection method of user terminal adjacent cell, it is characterised in that including：
When receiving the data comprising master sync signal PSS of base station transmission, by received data
Make related operation with local PSS sequences, obtain multiple correlations；
Respectively according to the correlation, calculating obtains corresponding average；
Judge to calculate whether obtained each average is stablized；
Corresponding correlation is chosen according to judged result to input to the first ranking circuit, wherein, described first
Ranking circuit is suitable to be ranked up the correlation that is inputted, and chooses from the correlation inputted first
The maximum of predetermined number；
The candidate for determining to detect for auxiliary synchronous signals SSS according to the output result of first ranking circuit
Peak value, and adjacent cell is detected for the auxiliary synchronous signals SSS candidate peaks detected according to described.
2. the detection method of user terminal adjacent cell as claimed in claim 1, it is characterised in that the judgement
Calculate whether obtained average is stablized, including it is following any one：
The default equal value stabilization moment whether is reached at the time of according to average correspondence, to judge to calculate
To average whether stablize；
According to the fluctuation of average in the two neighboring period, to judge whether the average that the calculating is obtained is steady
It is fixed.
3. the detection method of user terminal adjacent cell as claimed in claim 1, it is characterised in that the basis
Judged result is chosen corresponding correlation and inputted to the first ranking circuit, including：
When the average for judging that calculating is obtained is unstable, by the correlation corresponding to unstable average
Input to first ranking circuit is ranked up；
When judging to calculate the obtained equal value stabilization, the correlation corresponding to stable average is carried out
After screening, then input to first ranking circuit and be ranked up.
4. the detection method of user terminal adjacent cell as claimed in claim 3, it is characterised in that the basis
The output result of first ranking circuit determines the candidate peak detected for auxiliary synchronous signals SSS, bag
Include：
The correlation more than the first predetermined threshold value is chosen from the ranking results of the described first sequence circuit output
It is used as the candidate peak detected for SSS.
5. the detection method of user terminal adjacent cell as claimed in claim 4, it is characterised in that described first
Predetermined threshold value is related to the size of the average.
6. the detection method of user terminal adjacent cell as claimed in claim 1, it is characterised in that described first
Ranking circuit is bubble sort circuit, and first predetermined number is the depth of bubble sort.
7. the detection method of the user terminal adjacent cell as described in any one of claim 1~6, it is characterised in that
Adjacent cell is detected for the auxiliary synchronous signals SSS candidate peaks detected described in the basis, including：
According to the data for including SSS for the candidate peak interception that auxiliary synchronous signals SSS is detected；
The data intercepted and local SSS sequences are made into related operation；
The correlation obtained respectively according to related operation, calculating obtains corresponding average；
Judge to calculate whether obtained each average is stablized；
Corresponding correlation is chosen according to judged result to input to the second ranking circuit, wherein, described second
Ranking circuit is suitable to be ranked up the correlation that is inputted, and chooses from the correlation inputted second
The maximum of predetermined number；
Candidate peak for cell detection, and root are determined according to the output result of second ranking circuit
Adjacent cell is detected according to the candidate peak of the cell detection.
8. the detection method of user terminal adjacent cell as claimed in claim 7, it is characterised in that the judgement
Calculate whether obtained average is stablized, including it is following any one：
The default equal value stabilization moment whether is reached at the time of according to average correspondence, to judge to calculate
To average whether stablize；
According to the fluctuation of average in the two neighboring period, to judge whether the average that the calculating is obtained is steady
It is fixed.
9. the detection method of user terminal adjacent cell as claimed in claim 7, it is characterised in that the basis
Judged result is chosen corresponding correlation and inputted to the second ranking circuit, including：
When the average for judging that calculating is obtained is unstable, by the correlation corresponding to unstable average
Input to second ranking circuit is ranked up；
When judging to calculate the obtained equal value stabilization, the correlation corresponding to stable average is carried out
After screening, then input to second ranking circuit and be ranked up.
10. the detection method of user terminal adjacent cell as claimed in claim 9, it is characterised in that described
The candidate peak for cell detection is determined according to the output result of second ranking circuit, including：
The correlation more than the second predetermined threshold value is chosen from the ranking results of the described second sequence circuit output
It is used as the candidate peak for cell detection.
11. the detection method of user terminal adjacent cell as claimed in claim 10, it is characterised in that described
Two predetermined threshold values and correlation that related operation the obtained corresponding average made with local SSS sequences
Size is related.
12. the detection method of user terminal adjacent cell as claimed in claim 7, it is characterised in that described
Two ranking circuits are bubble sort circuit, and second predetermined number is the depth of bubble sort.
13. a kind of user terminal, it is characterised in that including：
Receiving unit, suitable for receiving the data for including master sync signal PSS that base station is sent；
First arithmetic element, suitable for when receive base station transmission the data comprising master sync signal PSS when,
Received data and local PSS sequences are made into related operation, multiple correlations are obtained；
Second arithmetic element, suitable for according to the correlation, calculating obtains corresponding average respectively；
Judging unit, suitable for judging to calculate whether obtained each average is stablized；
Unit is chosen, is inputted suitable for choosing corresponding correlation according to judged result to the first ranking circuit,
Wherein, first ranking circuit is suitable to be ranked up the correlation that is inputted, and from the phase inputted
The maximum of the first predetermined number is chosen in the value of pass；
Detection unit, suitable for being determined to be used for auxiliary synchronous signals according to the output result of first ranking circuit
The candidate peak of SSS detections, and adjacent cell is examined for the SSS candidate peaks detected according to described
Survey.
14. user terminal as claimed in claim 13, it is characterised in that the judging unit, suitable for working as root
The default equal value stabilization moment whether is reached at the time of according to average correspondence, to judge to calculate obtain equal
Whether value is stablized；Or according to the fluctuation of average in the two neighboring period, to judge that the calculating is obtained
Average whether stablize.
15. user terminal as claimed in claim 13, it is characterised in that the selection unit includes：
First chooses subelement, suitable for when judge to calculate the obtained average it is unstable when, will be unstable
Average corresponding to correlation input to first ranking circuit and be ranked up；
Second chooses subelement, suitable for when judging to calculate the obtained equal value stabilization, to the equal of stabilization
After the corresponding correlation of value is screened, then input to first ranking circuit and be ranked up.
16. user terminal as claimed in claim 15, it is characterised in that the detection unit, suitable for from institute
The correlation more than the first predetermined threshold value is chosen in the ranking results for stating the first sequence circuit output as described
The candidate peak detected for SSS.
17. user terminal as claimed in claim 16, it is characterised in that first predetermined threshold value with it is described
The size of average is related.
18. user terminal as claimed in claim 13, it is characterised in that first ranking circuit is integrated in
The user terminal.
19. user terminal as claimed in claim 18, it is characterised in that first ranking circuit is bubbling
Ranking circuit, first predetermined number is the depth of bubble sort.
20. the user terminal as described in any one of claim 13~19, it is characterised in that the detection unit
Including：
Subelement is intercepted, suitable for according to the number for including SSS for the candidate peak interception that SSS is detected
According to；
Computing subelement, suitable for the data intercepted and local SSS sequences are made into related operation；
Computation subunit, suitable for the correlation obtained respectively according to related operation, calculating obtains corresponding equal
Value；
Judgment sub-unit, suitable for judging to calculate whether obtained each average is stablized；
Subelement is chosen, is inputted suitable for choosing corresponding correlation according to judged result to the second ranking circuit,
Wherein, second ranking circuit is suitable to be ranked up the correlation that is inputted, and from the phase inputted
The maximum of the second predetermined number is chosen in the value of pass；
Detection sub-unit, suitable for being determined to be used for cell detection according to the output result of second ranking circuit
Candidate peak, and adjacent cell is detected according to the candidate peak of the cell detection.
21. user terminal as claimed in claim 20, it is characterised in that the judgment sub-unit, suitable for root
The default equal value stabilization moment whether is reached at the time of according to average correspondence, to judge to calculate obtain equal
Whether value is stablized；Or according to the fluctuation of average in the two neighboring period, to judge that the calculating is obtained
Average whether stablize.
22. user terminal as claimed in claim 20, it is characterised in that the selection subelement, including：
First chooses module, suitable for when judge to calculate the obtained average it is unstable when, will be unstable
Correlation corresponding to average is inputted to second ranking circuit and is ranked up；
Second chooses module, suitable for when judging to calculate the obtained equal value stabilization, to stable average
After corresponding correlation is screened, then input to second ranking circuit and be ranked up.
23. user terminal as claimed in claim 20, it is characterised in that the detection sub-unit, suitable for from
The correlation more than the second predetermined threshold value is chosen as institute in the ranking results of the second sequence circuit output
State the candidate peak for cell detection.
24. user terminal as claimed in claim 20, it is characterised in that second predetermined threshold value with it is described
It is related to the size that local SSS sequences make the corresponding average of correlation that related operation is obtained.
25. user terminal as claimed in claim 20, it is characterised in that second ranking circuit is integrated in
The user terminal.
26. user terminal as claimed in claim 25, it is characterised in that second ranking circuit is bubbling
Ranking circuit, second predetermined number is the depth of bubble sort.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107343286A (en) * | 2016-04-29 | 2017-11-10 | 北京展讯高科通信技术有限公司 | The detection method of user terminal and its adjacent cell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102421114A (en) * | 2011-11-30 | 2012-04-18 | 合肥东芯通信股份有限公司 | Device and method for searching same-frequency neighbor cells of long term evolution (LTE) system |
| CN102510566A (en) * | 2011-11-30 | 2012-06-20 | 合肥东芯通信股份有限公司 | Method and device for searching neighbor-cell of LTE (long term evolution) system |
| CN103856956A (en) * | 2012-11-29 | 2014-06-11 | 重庆重邮信科通信技术有限公司 | LTE system cell detection method |
| US20150139190A1 (en) * | 2013-11-18 | 2015-05-21 | Mbit Wireless, Inc. | Method and apparatus for neighbor cell tracking |
-
2016
- 2016-04-29 CN CN201610285280.4A patent/CN107333280B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102421114A (en) * | 2011-11-30 | 2012-04-18 | 合肥东芯通信股份有限公司 | Device and method for searching same-frequency neighbor cells of long term evolution (LTE) system |
| CN102510566A (en) * | 2011-11-30 | 2012-06-20 | 合肥东芯通信股份有限公司 | Method and device for searching neighbor-cell of LTE (long term evolution) system |
| CN103856956A (en) * | 2012-11-29 | 2014-06-11 | 重庆重邮信科通信技术有限公司 | LTE system cell detection method |
| US20150139190A1 (en) * | 2013-11-18 | 2015-05-21 | Mbit Wireless, Inc. | Method and apparatus for neighbor cell tracking |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107343286A (en) * | 2016-04-29 | 2017-11-10 | 北京展讯高科通信技术有限公司 | The detection method of user terminal and its adjacent cell |
| CN107343286B (en) * | 2016-04-29 | 2019-12-06 | 北京展讯高科通信技术有限公司 | User terminal and method for detecting adjacent cell thereof |
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