CN106817189B - 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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- CN106817189B CN106817189B CN201610270949.2A CN201610270949A CN106817189B CN 106817189 B CN106817189 B CN 106817189B CN 201610270949 A CN201610270949 A CN 201610270949A CN 106817189 B CN106817189 B CN 106817189B
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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
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
- H04J11/0093—Neighbour cell search
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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Abstract
A kind of detection method of user terminal and its adjacent cell.The described method includes：Receive the data for including primary synchronization signal PSS that base station is sent；Received data and local PSS sequences are made into related operation；According to the peak value that related operation obtains, self-adapting detecting is carried out to adjacent cell.The calculation amount of adjacent cell detection process can be reduced using the method, and reduces the false drop rate of adjacent cell detection process.
Description
This application claims on November 30th, 2015 to submit Patent Office of the People's Republic of China, Application No. 201510859777.8, invention name
The referred to as priority of the Chinese patent application of " detection method of user terminal and its adjacent cell ", entire contents are tied by quoting
It closes in this application.
Technical field
The present invention relates to fields of communication technology, and in particular to the detection method of a kind of user terminal and its adjacent cell.
Background technology
In mobile communication system, after user terminal start, by cell initial searching process, reside in suitably service it is small
In area, and progressively establish wireless communication procedure.Meanwhile user terminal is also required to detection and the neighbouring cell of the serving cell
(referred to as " adjacent cell "), and the communication quality of the adjacent cell to detecting is constantly tracked measurement, to carry out cell weight for it
Choosing and switching are prepared.
At present, after resident service cell, user terminal is when detecting adjacent cell, it will usually receive including for base station transmission
Primary synchronization signal (PSS) data.Afterwards, user terminal carries out received data PSS detections and SSS detections successively, with
Obtain the information of respective cell.
However, the above-mentioned required detection time of adjacent district detecting method is longer, detection efficiency is caused to be told somebody what one's real intentions are.
The content of the invention
The problem to be solved in the present invention is how to shorten the detection time of adjacent cell, improves the detection efficiency of adjacent area.
To solve the above problems, an embodiment of the present invention provides a kind of detection method of user terminal adjacent cell, the sides
Method includes：Receive the data for including primary synchronization signal PSS that base station is sent；Received data and local PSS sequences are made
Related operation；According to the peak value that related operation obtains, self-adapting detecting is carried out to adjacent cell.
Optionally, the peak value obtained according to related operation carries out self-adapting detecting to adjacent cell, including：According to inspection
It surveys target to shield the making choice property of peak value obtained, and adjacent cell is adaptively examined according to not shielded peak value
It surveys, the detection target includes：The cell of the cell of same synchronic group or different synchronic groups, wherein, each synchronic group corresponds to
Different peak value sections.
Optionally, it is described that the making choice property of peak value obtained is shielded according to detection target, and according to not shielded
Peak value carries out self-adapting detecting to adjacent cell, including：When detecting the cell that target is same synchronic group, obtained in related operation
Peak value in, will be except the corresponding off peak peak value shielding of k-th of synchronic group cell to be detected, and according to not shielded peak
It is worth and self-adapting detecting is carried out to the information of other cells in k-th of synchronic group, k≤K, k is positive integer, and K is synchronic group
Sum；It, will be with having detected not in the peak value obtained in related operation when detecting the cell that target is different synchronic group
The corresponding peak value shielding with the peak value section of synchronic group cell, and according to not shielded peak value to cell in other synchronic groups
Information carries out self-adapting detecting.
Optionally, the not shielded peak value of the basis carries out certainly the information of other cells in k-th of synchronic group
Detection is adapted to, including：The peak value that the related operation is obtained is respectively compared with corresponding peak threshold；When from the phase
When filtering out the peak value more than corresponding peak threshold in the peak value that pass computing obtains, it is more than corresponding peak value according to what is filtered out
The peak value of threshold value carries out secondary synchronization signal SSS detections, obtains the information of other cells in k-th of synchronic group, otherwise performs
The PSS detections of next round.
Optionally, the peak value more than corresponding peak threshold that the basis filters out carries out secondary synchronization signal SSS detections,
Including：According to the data for including SSS more than the peak value interception of corresponding peak threshold filtered out；The data that will be intercepted
Make related operation with local SSS sequences；By the result of the related operation respectively compared with corresponding peak threshold；When from
When the peak value more than corresponding peak threshold is filtered out in the peak value that the related operation obtains, obtained according to the peak value filtered out
Otherwise the information of other cells in k-th of synchronic group performs the SSS detections of next round.
Optionally, the not shielded peak value of the basis carries out self-adapting detecting to the information of cell in other synchronic groups,
Including：Respectively by the not shielded peak value compared with corresponding peak threshold；When from the not shielded peak value
In when filtering out the peak value more than corresponding peak threshold, carried out according to the peak value more than corresponding peak threshold filtered out auxiliary
Synchronizing signal SSS is detected, and obtains the information of other synchronic group cells, otherwise performs the PSS detections of next round.
Optionally, the peak value more than corresponding peak threshold that the basis filters out carries out secondary synchronization signal SSS detections,
Including：According to the data for including SSS more than the peak value interception of corresponding peak threshold filtered out；The data that will be intercepted
Make related operation with local SSS sequences；By the result of the related operation respectively compared with corresponding peak threshold；When from
When the peak value more than corresponding peak threshold is filtered out in the peak value that the related operation obtains, obtained according to the peak value filtered out
Otherwise the information of other corresponding synchronic group cells performs the SSS detections of next round.
Optionally, according to information of the signal by the cell in strong other synchronic groups to weak sequence detection or same synchronic group
In other cell informations.
Optionally, the peak value obtained according to related operation carries out self-adapting detecting to adjacent cell, including：By described in
The peak value that related operation obtains is respectively compared with corresponding peak threshold；It is sieved when in the peak value obtained from the related operation
When selecting the peak value more than corresponding peak threshold, SSS inspections are carried out according to the peak value more than corresponding peak threshold filtered out
It surveys, obtains the information of corresponding adjacent cell, otherwise perform the PSS detections of next round.
Optionally, the peak value more than corresponding peak threshold that the basis filters out carries out SSS detections, including：According to
The data for including SSS more than the peak value interception of corresponding peak threshold filtered out；By the data intercepted and local SSS
Sequence makees related operation；By the result of the related operation respectively compared with corresponding peak threshold；When from the correlation
When the peak value more than corresponding peak threshold is filtered out in the peak value that computing obtains, obtained according to the peak value filtered out corresponding adjacent small
Otherwise the information in area performs the SSS detections of next round.
The embodiment of the present invention additionally provides a kind of user terminal, and the user terminal includes：Receiving unit, suitable for receiving base
Stand send the data for including PSS；Arithmetic element, suitable for received data and local PSS sequences are made related operation；Inspection
Unit is surveyed, suitable for the peak value obtained according to related operation, self-adapting detecting is carried out to adjacent cell.
Optionally, the detection unit is suitable for shielding the making choice property of peak value obtained according to detection target, and root
Self-adapting detecting is carried out to adjacent cell according to not shielded peak value, the detection target includes：The cell of same synchronic group or not
The cell of same synchronic group, wherein, each synchronic group corresponds to different peak value sections.
Optionally, the detection unit includes：First detection sub-unit, suitable for being the small of same synchronic group when detection target
In the peak value of related operation acquisition, peak value corresponding with the same synchronic group cell detected is shielded by Qu Shi, and according to
Not shielded peak value carries out self-adapting detecting to the information of other cells in the same synchronic group；Second detection sub-unit,
Suitable for when detect target be different synchronic groups cell when, related operation obtain peak value in, will be with having detected not
The corresponding peak value shielding with the peak value section of synchronic group cell, and according to not shielded peak value to cell in other synchronic groups
Information carries out self-adapting detecting.
Optionally, first detection sub-unit includes：First comparison module, suitable for the peak for obtaining the related operation
Value is respectively compared with corresponding peak threshold；First detection module screens suitable for working as from the result of the related operation
When going out to be more than the peak value of corresponding peak threshold, auxiliary synchronous letter is carried out according to the peak value more than corresponding peak threshold filtered out
Number SSS detection obtains the information of other cells in k-th of synchronic group；First control module, suitable for ought be not from the correlation
When the peak value more than corresponding peak threshold is filtered out in the result of computing, the receiving unit, arithmetic element and are controlled
One detection sub-unit performs the PSS detections of next round.
Optionally, the first detection module includes：First data cutout submodule is big suitable for being filtered out according to
The data of SSS are included in the peak value interception of corresponding peak threshold；First computing submodule, suitable for by the data intercepted and originally
Ground SSS sequences make related operation；First comparison sub-module, suitable for by the result of the related operation respectively with corresponding peak value threshold
Value is compared；First acquisition submodule is filtered out from the peak value that the related operation obtains suitable for working as more than corresponding peak value
During the peak value of threshold value, the information of other cells in k-th of synchronic group is obtained according to the peak value filtered out；First control
Module, suitable for when filtering out the peak value more than corresponding peak threshold in the peak value not obtained from the related operation, controlling institute
State the SSS detections that first detection module performs next round.
Optionally, the first screening submodule is suitable for screening the result of the related operation.
Optionally, the first screening submodule, suitable for from the result of the related operation, choosing each preset time point
The corresponding peak value d_pss (i) of d_time_pss (i), wherein, i represents i-th of time point, and i≤N, i are positive integer, and N is default
The sum at time point；And suitable for the corresponding peak value d_pss (i) of each preset time point d_time_pss (i) that will select with
The corresponding peak threshold d_thresld_pss (i) of the preset time point d_time_pss (i) is compared respectively, filters out
The peak value of d_pss (i) ＞ d_thresld_pss (i).
Optionally, second detection sub-unit, including：Second comparison module, suitable for not shielded described in general respectively
Peak value is compared with corresponding peak threshold；Second detection module filters out suitable for working as from the not shielded peak value
More than corresponding peak threshold peak value when, secondary synchronization signal is carried out according to the peak value filtered out more than corresponding peak threshold
SSS is detected, and obtains the information of other synchronic group cells；Second control module, suitable for ought be not from the not shielded peak value
When being more than the peak value of corresponding peak threshold described in filtering out, the receiving unit, arithmetic element and the second detection are controlled
Unit performs the PSS detections of next round.
Optionally, second detection module includes：Second data cutout submodule is big suitable for being filtered out according to
The data of SSS are included in the peak value interception of corresponding peak threshold；Second computing submodule, suitable for by the data intercepted and originally
Ground SSS sequences make related operation；Second comparison sub-module, suitable for by the result of the related operation respectively with corresponding peak value threshold
Value is compared；Second acquisition submodule is filtered out from the peak value that the related operation obtains suitable for working as more than corresponding peak value
During the peak value of threshold value, the information of other corresponding synchronic group cells is obtained according to the peak value filtered out；Second control submodule,
Suitable for when filtering out the peak value more than corresponding peak threshold in the peak value not obtained from the related operation, controlling described second
Detection module performs the SSS detections of next round.
Optionally, first detection sub-unit is small by other in the strong extremely weak same synchronic group of sequence detection according to signal
Area's information, second detection sub-unit, according to signal by the strong information to other synchronic group cells of weak sequence detection.
Optionally, the detection unit includes：Comparing subunit, suitable for the peak value that obtains the related operation respectively with
Corresponding peak threshold is compared；3rd detection sub-unit filters out suitable for working as from the peak value that the related operation obtains
More than corresponding peak threshold peak value when, SSS detections are carried out according to the peak value filtered out more than corresponding peak threshold, are obtained
Take the information of corresponding adjacent cell；Control subelement, suitable for ought not filtered out from the peak value that the related operation obtains be more than pair
During the peak value for the peak threshold answered, the receiving unit, arithmetic element and the 3rd detection sub-unit is controlled to perform next round
PSS is detected.
Optionally, the 3rd detection sub-unit includes：Data cutout module, suitable for according to described in filter out be more than pair
The peak value interception for the peak threshold answered includes the data of SSS；Computing module, suitable for by the data intercepted and local SSS sequences
Make related operation；3rd comparison module, suitable for by the result of the related operation respectively compared with corresponding peak threshold；
3rd detection module, suitable for the peak value for being more than corresponding peak threshold ought do not filtered out from the peak value that the related operation obtains
When, the 3rd detection sub-unit is controlled to perform the SSS detections of next round.
Compared with prior art, technical scheme at least has the following advantages：
By the way that the data received and local PSS sequences are made related operation, and then the peak value obtained according to related operation,
Self-adapting detecting is carried out to adjacent cell, the time for detecting each adjacent area can be neatly adjusted, and then effectively shorten entire adjacent area
Detection time, improve detection efficiency.
Further, the making choice property of peak value that is obtained is shielded according to detection target by elder generation, further according to not shielded
The peak value covered carries out adjacent cell self-adapting detecting, and the quantity of peak value when can reduce subsequent detection is reduced in detection process
Calculation amount improves the detection efficiency of adjacent cell.Also, pass through the masked segment peak value of selectivity, it is possible to reduce to subsequent detection
Interference, reduce false drop rate.
Further, by do not filtered out from the not shielded peak value it is described more than corresponding peak threshold
During peak value, the PSS detections of next round are performed so that entire detection process includes the PSS more taken turns detections, and then can be by flexible
Ground sets the time span of each round PSS detections, and is detected by wheel, after obtaining the peak value more than corresponding peak threshold,
Subsequent SSS detections are carried out again, can effectively be shortened the time required to being screened to not shielded peak value, be further improved inspection
Survey efficiency.
Further, the peak value of corresponding peak threshold is more than by being filtered out in the peak value not obtained from related operation
When, perform the SSS detections of next round so that entire detection process is divided into more wheel SSS detections, and then can be by flexibly setting
The time span of each round SSS detections, and be detected by wheel, after obtaining the peak value more than corresponding peak threshold, further according to
The peak value that is obtained obtains the information of other corresponding synchronic group cells, can effectively shorten to the peak value that related operation obtains into
The time required to row screening, detection efficiency is further improved..
Description of the drawings
Fig. 1 is a kind of flow chart of the detection method of user terminal adjacent cell in the embodiment of the present invention；
Fig. 2 is a kind of structure diagram of user terminal in the embodiment of the present invention；
Fig. 3 is a kind of structure diagram of first detection unit in the embodiment of the present invention；
Fig. 4 is a kind of structure diagram of second detection unit in the embodiment of the present invention；
Fig. 5 is a kind of structure diagram of detection unit in the embodiment of the present invention.
Specific embodiment
At present, user terminal first carries out PSS inspections after the data comprising PSS of base station transmission are received to the data
Survey, then to the data carry out SSS detections, so as to according to SSS detect as a result, obtain respective cell information.Wherein,
PSS detections are carried out to the data, i.e., the data and local PSS sequences are made into related operation, to generate multiple peak values.To institute
State data progress SSS detections, i.e., the peak value obtained according to PSS detections intercepts corresponding data, then by the data being truncated to and originally
Ground SSS sequences make related operation, so as to the result according to related operation and according to identical detection time, obtain corresponding small
The information in area completes the detection process to adjacent cell.
However, in above-mentioned adjacent cell detection process, the data can generate more peak value after related operation,
PSS detection-phases after need to all peak values more than corresponding peaks threshold value be filtered out, then carry out SSS detections, also, in SSS
Detection-phase, need to be by the peak value filtered out respectively compared with corresponding peak threshold, after obtaining whole candidate peaks,
Adjacent area detection is carried out, the time for thus causing entire adjacent area detection is longer, and detection efficiency is relatively low.
In view of the above-mentioned problems, the embodiment provides a kind of detection method of user terminal adjacent cell, the sides
Method by the data received and local PSS sequences after related operation is made, by the peak value obtained according to related operation, to adjacent small
Area carries out self-adapting detecting, can neatly adjust the time being detected to each adjacent area, effectively shorten the inspection of entire adjacent area
The time is surveyed, improves detection efficiency.
It is understandable for the above objects, features and advantages of the present invention is enable to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment explain in detail.
As shown in Figure 1, an embodiment of the present invention provides a kind of detection method of user terminal adjacent cell, the method can be with
Include the following steps：
Step 11, the data for including primary synchronization signal PSS that base station is sent are received.
In specific implementation, after user terminal resides in suitable serving cell, the number that multiple base stations are sent can be received
According to can include the information such as PSS, SSS in the data, the data that each base station is sent are both needed to carry out with the detection of adjacent cell.
In the embodiment of the present invention, one of base station for being received with the user terminal send comprising primary synchronization signal PSS
It is illustrated exemplified by data r.
Step 12, received data and local PSS sequences are made into related operation.
In specific implementation, the local PSS sequences can be obtained ahead of time and be stored in the user terminal.It gets
It is after the data r comprising primary synchronization signal PSS, the data r is related to local PSS sequences progress, obtain channel impulse
Response.Desired peak value can be obtained according to the channel impulse response, the position of PSS is may determine that according to the peak value.
Step 13, the peak value obtained according to related operation carries out self-adapting detecting to adjacent cell.
In specific implementation, after obtaining the peak value that related operation obtains, a variety of methods progress adjacent cells oneself may be employed
Adapt to detection.
In one embodiment of this invention, the different phase detected according to adjacent cell, both can be to the related operation
After the peak value of acquisition carries out adaptive selection, that is, after PSS detection-phases carry out self-adapting detecting, then the peak to filtering out
Value carries out non-adaptive SSS detections, thus shortens detection time of the adjacent cell in PSS detection-phases；It can also be to the phase
After closing the non-adaptive screening of peak value progress that computing obtains, then the peak value to filtering out carries out adaptive SSS detections, it is possible thereby to
Shorten detection time of the adjacent cell in SSS detection-phases；It can also be carried out in the peak value obtained to the related operation adaptive
After screening, then the peak value to filtering out carries out adaptive SSS detections, it is possible thereby to shorten adjacent cell in PSS and SSS detection-phases
Detection time.
In specific implementation, adaptive selection is carried out to the peak value that the related operation obtains and a variety of screening sides may be employed
For example, entire adjacent area detection process can be set to include the PSS detections of multichannel, each round is divided according to the length of time for method
Detection, that is, the sequencing according to the time, are detected by wheel.The wheel number specifically detected can be carried out according to actual conditions
Setting.The PSS that entire adjacent area detection process is divided into several wheels is detected, and then can be by rationally setting the time of each round long
Degree quickly, neatly obtains the peak value that can be used for SSS detections, further improves detection efficiency.
Specifically, multiple preset time points are pre-set, the PSS detections of a wheel are performed in each preset time point.It is each
The PSS detections of wheel can be implemented in accordance with the following steps：The data of PSS are included in the acquisition of a certain preset time point, and do related fortune
It calculates；In the peak value obtained in related operation, by the corresponding peak value screen in peak value section of synchronic group cells different from what is detected
It covers, and the peak value more than corresponding peak threshold is filtered out from unscreened peak value, to carry out secondary synchronization signal SSS detections.
If being more than the peak value of corresponding peak threshold described in not filtered out when the PSS detections of front-wheel from the not shielded peak value,
The PSS detections of next round are then performed, that is, are repeated the above process in next preset time point, one default up to wherein
Time point filters out the peak value for being more than corresponding peak threshold from the not shielded peak value.
In specific implementation, a variety of detection methods can also be used by adaptive SSS detections being carried out to the peak value filtered out.Than
Such as, the SSS that can set entire adjacent area detection process includes several wheels is detected, according to the inspection of the length division each round of time
It surveys, that is, the sequencing according to the time, it is detected by wheel.The wheel number specifically detected can be set according to actual conditions
It is fixed.The SSS that entire adjacent area detection process is divided into several wheels is detected, and then can be by rationally setting the time of each round long
Degree quickly, neatly obtains and can further improve detection efficiency with the peak value of cell detection.
Specifically, multiple preset time points are pre-set, the SSS detections of a wheel are performed in each preset time point.It is each
The SSS detections of wheel can be implemented in accordance with the following steps：The data of SSS are included in the acquisition of a certain preset time point, and do related fortune
It calculates；In the peak value obtained in related operation, the peak value more than corresponding peak threshold is filtered out, as the peak for cell detection
Value.If when the SSS detections of front-wheel do not filter out the peak value for being more than corresponding peak threshold, the SSS for performing next round is examined
Survey, that is, repeated the above process in next preset time point, until wherein a preset time point filter out it is described big
In the peak value of corresponding peak threshold.
It in another embodiment of the invention, can be first according to detection target to peak value the making choice property screen that is obtained
It covers, self-adapting detecting, peak value when thus can not only reduce subsequent detection is carried out to adjacent cell further according to not shielded peak value
Quantity, reduce detection process in calculation amount, improve the detection efficiency of adjacent cell, and can reduce and subsequent detection is done
It disturbs, reduces false drop rate.
Wherein, the detection target can include:The cell of the cell of same synchronic group or different synchronic groups, wherein,
Each synchronic group corresponds to different peak value sections.The quantity of synchronic group and the corresponding peak value section of each synchronic group can be advance
It sets.When the peak value of a cell falls into the corresponding peak value section of a synchronic group, which is the cell of the synchronic group.It is different same
The cell for walking group is asynchronous cell.For example, the corresponding peak value sections of synchronic group A are [80,100], the corresponding peak regions of synchronic group B
Between for [60,80), 1 corresponding peak value of cell be 85,2 corresponding peak value of cell be 74, then cell 1 be synchronic group A cell, it is small
Area 2 is the cell of synchronic group B, and cell 1 is asynchronous cell with cell 2.
It, will be with having detected in the peak value that can be obtained in related operation when detecting the cell that target is same synchronic group
The corresponding peak value shielding of same synchronic group cell gone out, and it is small to other in the same synchronic group according to not shielded peak value
The information in area carries out self-adapting detecting.
In specific implementation, a variety of methods may be employed by peak value screen corresponding with the same synchronic group cell detected
It covers, and self-adapting detecting is carried out to the information of other cells in the same synchronic group according to not shielded peak value.
In specific implementation, first the result of the related operation can be screened, then the peak value to filtering out carries out
SSS is detected, to obtain the information of other cells in k-th of synchronic group.Wherein, in order to shorten the detection time of adjacent cell,
Both adaptive selection can be carried out to the result of related operation, then the peak value to filtering out carries out non-adaptive SSS detections, also may be used
It, can also be right to carry out non-adaptive screening, then the adaptive SSS detections of the progress of the peak value to filtering out to the result of related operation
The result of related operation carries out adaptive selection, then the peak value to filtering out carries out adaptive SSS detections.
In one embodiment of this invention, when carrying out adaptive selection to the result of related operation, each synchronic group cell
Detection process can include several wheels PSS detect, according to the time length division each round detection, that is, according to when
Between sequencing, be detected by wheel.The wheel number specifically detected can be set according to actual conditions.By each synchronic group
The detection process of cell is divided into the PSS detections of several wheels, so can by rationally setting the time span of each round, it is quick,
The peak value that can be used for SSS detections is neatly obtained, further improves detection efficiency.
Specifically, multiple preset time points are pre-set, the PSS detections of a wheel are performed in each preset time point.It is each
The PSS detections of wheel can be implemented in accordance with the following steps：The data of PSS are included in the acquisition of a certain preset time point, and do related fortune
It calculates, then from the peak value that related operation obtains, from the corresponding peak value of cell of k-th of synchronic group, filters out more than corresponding
The peak value of peak threshold, to carry out SSS detections.If it is more than corresponding peak threshold described in not filtered out when the PSS detections of front-wheel
Peak value, then perform the PSS detections of next round, that is, repeated the above process in next preset time point, until wherein
One preset time point filters out the peak value for being more than corresponding peak threshold.
In one embodiment of this invention, following method may be employed, SSS detections is carried out to the peak value filtered out：It is each same
The SSS detections of several wheels can be included by walking the detection process in group of mean people area, divide the detection of each round according to the length of time, also
It is the sequencing according to the time, is detected by wheel.The wheel number specifically detected can be set according to actual conditions.It will be every
The detection process of a synchronic group cell is divided into the SSS detections of several wheels, and then can be by rationally setting the time of each round long
Degree quickly, neatly obtains and can further improve detection efficiency with the peak value of cell detection.
Specifically, multiple preset time points are pre-set, the SSS detections of a wheel are performed in each preset time point.It is each
The SSS detections of wheel can be implemented in accordance with the following steps：The data of SSS are included in the acquisition of a certain preset time point, and do related fortune
It calculates；In the peak value obtained in related operation, the peak value more than corresponding peak threshold is filtered out, as the peak for cell detection
Value.If when the SSS detections of front-wheel do not filter out the peak value for being more than corresponding peak threshold, the SSS for performing next round is examined
Survey, that is, repeated the above process in next preset time point, until wherein a preset time point filter out it is described big
In the peak value of corresponding peak threshold.
It, will be with having detected in the peak value obtained in related operation when detecting the cell that target is different synchronic group
Different synchronic group cells the corresponding peak value shielding of peak value section, and according to not shielded peak value to small in other synchronic groups
The information in area carries out self-adapting detecting.
In specific implementation, first not shielded peak value can be screened, then the peak value to filtering out carries out SSS inspections
It surveys, to obtain the information of cell in other synchronic groups.It wherein, both can be to not shielded in order to shorten the detection time of adjacent cell
The peak value covered carries out adaptive selection, then the peak value to filtering out carries out non-adaptive SSS detections, can also be to not shielded
Peak value carries out non-adaptive screening, then the peak value to filtering out carries out adaptive SSS detections, can also be to not shielded peak value
Adaptive selection is carried out, then the peak value to filtering out carries out adaptive SSS detections.
In specific implementation, adaptive selection is carried out to not shielded peak value and the peak value to filtering out carries out certainly
Adapting to SSS detections, there are a variety of methods.
In specific implementation, a variety of methods may be employed to screen the not shielded peak value.The present invention's
In one embodiment, the detection process of asynchronous cell can be set to include the PSS detections of several wheels, be divided according to the length of time every
The detection of one wheel, that is, the sequencing according to the time, are detected by wheel.The wheel number specifically detected can be according to actual feelings
Condition is set.The PSS that the detection process of each synchronic group cell is divided into several wheels is detected, and then can be by rationally setting
The time span of each round quickly, neatly obtains the peak value that can be used for SSS detections, further improves detection efficiency.
Specifically, multiple preset time points are pre-set, the PSS detections of a wheel are performed in each preset time point.It is each
The PSS detections of wheel can be implemented in accordance with the following steps：The data of PSS are included in the acquisition of a certain preset time point, and do related fortune
It calculates, then from the peak value that related operation obtains, from the corresponding peak value of cell of k-th of synchronic group, filters out more than corresponding
The peak value of peak threshold, to carry out SSS detections.If it is more than corresponding peak threshold described in not filtered out when the PSS detections of front-wheel
Peak value, then perform the PSS detections of next round, that is, repeated the above process in next preset time point, until wherein
One preset time point filters out the peak value for being more than corresponding peak threshold.
In one embodiment of this invention, following method may be employed, SSS detections is carried out to the peak value filtered out：It sets different
The SSS detections of several wheels can be included by walking the detection process of cell, according to the detection of the length division each round of time, that is,
According to the sequencing of time, it is detected by wheel.The wheel number specifically detected can be set according to actual conditions.It will be asynchronous
The detection process of cell is divided into the SSS detections of several wheels, so can by rationally setting the time span of each round, it is quick,
Detection efficiency can be further improved with the peak value of cell detection by neatly obtaining.
Specifically, multiple preset time points are pre-set, the SSS detections of a wheel are performed in each preset time point.It is each
The SSS detections of wheel can be implemented in accordance with the following steps：The data of SSS are included in the acquisition of a certain preset time point, and do related fortune
It calculates；In the peak value obtained in related operation, the peak value more than corresponding peak threshold is filtered out, as the peak for cell detection
Value.If when the SSS detections of front-wheel do not filter out the peak value for being more than corresponding peak threshold, the SSS for performing next round is examined
Survey, that is, repeated the above process in next preset time point, until wherein a preset time point filter out it is described big
In the peak value of corresponding peak threshold.
It should be noted that the peak value each filtered out can correspond to multiple cells, a cell can also be only corresponded to.
That is the information of the cell in a synchronic group can be obtained according to a peak value, can also only obtain small in multiple synchronic groups
The information in area.Wherein, the strong cell of signal can correspond to larger peak value, can also correspond to smaller peak value, and signal is weak
Cell usually corresponds to smaller peak value, therefore, can be according to signal by strong in the information of the cell in detecting other synchronic groups
It is detected to weak order, i.e., the cell of the strong synchronic group of signal is first detected, further according to the letter of the strong synchronic group cell of signal
Breath, the cell of the weak synchronic group of detection signal, when avoiding the weak cell of first detection signal, the strong cell of signal is corresponding smaller
Peak value detection is interfered, detection efficiency is improved with this, reduces false drop rate.
For example, the cell detected includes：Cell 1 in synchronic group A, cell 2 and cell 3 in synchronic group B, then may be used
With the information of the cell 1 in synchronic group A, the cell 2 in synchronic group B and cell 3, the letter of the cell 4 in detection synchronic group C
Breath.Further according to the information of the cell 1 in synchronic group A, the cell 2 in synchronic group B and the cell 4 in cell 3, synchronic group C, detection
The information of cell 5 in synchronic group D.Continue to detect according to the method described above, until when meeting the condition for stopping detection, stop inspection
It surveys.
It should be noted that in specific implementation, it can be after each synchronic group detects cell, then detect each synchronization
Other cells in group after the cell in detecting a synchronic group, that is, can also detect the letter of other cells in the synchronic group
Breath.Other cell informations in the information for detecting other synchronic group cells, with the detection same synchronic group, can be simultaneously
Row processing, can also serial process, from sequentially limiting.
It should be noted that either detecting the information of other synchronic group cells, still detect in same synchronic group
The cell information detected can be put into cell list by the information of other cells, in order to subsequently carry out cell switching
With the operations such as gravity treatment.
As shown in the above, the detection method of adjacent cell described in the embodiment of the present invention, by being obtained according to related operation
The peak value obtained carries out self-adapting detecting to adjacent cell, can flexibly set the detection time of different community, and shortening entirely detected
Journey the time it takes improves detection efficiency.
In order to more fully understand those skilled in the art and realize the present invention, below to above-mentioned user terminal adjacent cell
The corresponding user terminal of detection method is described in detail.
As shown in Fig. 2, an embodiment of the present invention provides a kind of user terminal 30, the user terminal 30 includes：It receives single
Member 31, arithmetic element 32 and detection unit 33.Wherein：
The receiving unit 31 is suitable for receiving the data for including PSS that base station is sent.
The arithmetic element 32 is suitable for received data and local PSS sequences making related operation.
The detection unit 33 is suitable for the peak value obtained according to related operation, and self-adapting detecting is carried out to adjacent cell.
In specific implementation, the detection unit 33 is suitable for according to detection target to peak value the making choice property screen that is obtained
It covers, and self-adapting detecting carries out adjacent cell according to not shielded peak value, the detection target includes：Same synchronic group it is small
Area or the cell of different synchronic groups, wherein, each synchronic group corresponds to different peak value sections.
In one embodiment of this invention, the detection unit 33 can include：First detection sub-unit 331 and second
Detection sub-unit 332.Wherein：
First detection sub-unit 331, suitable for when detecting the cell that target is same synchronic group, being obtained in related operation
In the peak value obtained, peak value corresponding with the same synchronic group cell detected is shielded, and according to not shielded peak value pair
The information of other cells carries out self-adapting detecting in the same synchronic group.
Second detection sub-unit 332, suitable for when detect target be different synchronic groups cell when, in related operation
In the peak value of acquisition, the corresponding peak value in the peak value section of synchronic group cells different from what is detected is shielded, and according to not by
The peak value of shielding carries out self-adapting detecting to the information of cell in other synchronic groups.
With reference to Fig. 3, in specific implementation, first detection sub-unit 331 can include：First comparison module 41, the
One detection module 42 and the first control module 43.Wherein：
First comparison module 41 be suitable for the peak value that obtains the related operation respectively with corresponding peak threshold into
Row compares；
The first detection module 42 is filtered out from the result of the related operation more than corresponding peak value threshold suitable for working as
During the peak value of value, secondary synchronization signal SSS detections are carried out according to the peak value filtered out more than corresponding peak threshold, described in acquisition
The information of other cells in k-th of synchronic group；
First control module 43, suitable for ought not filtered out from the result of the related operation more than corresponding peak value
During the peak value of threshold value, the receiving unit 31,32 and first detection sub-unit 331 of arithmetic element is controlled to perform next round
PSS is detected.
In specific implementation, the first detection module 42 can include：First data cutout submodule 421, the first fortune
Operator module 422, the first comparison sub-module 423, the first acquisition submodule 424 and the first control submodule 425.Wherein：
The first data cutout submodule 421, suitable for the peak more than corresponding peak threshold filtered out according to
Value interception includes the data of SSS；
The first computing submodule 422, suitable for the data intercepted and local SSS sequences are made related operation；
First comparison sub-module 423, suitable for the result of the related operation is compared respectively with corresponding peak threshold
Compared with；
First acquisition submodule 424 is filtered out from the peak value that the related operation obtains suitable for working as more than corresponding peak value
During the peak value of threshold value, the information of other cells in k-th of synchronic group is obtained according to the peak value filtered out；
First control submodule 425 is more than corresponding peak suitable for that ought not filtered out from the peak value that the related operation obtains
When being worth the peak value of threshold value, the first detection module is controlled to perform the SSS detections of next round.
With reference to Fig. 4, in specific implementation, second detection sub-unit 332 can include：Second comparison module 51, the
Two detection modules 52 and the second control module 53.Wherein：
Second comparison module 51 is suitable for respectively comparing the not shielded peak value with corresponding peak threshold
Compared with；
Second detection module 52 is suitable for described more than corresponding peak when being filtered out from the not shielded peak value
When being worth the peak value of threshold value, secondary synchronization signal SSS detections are carried out according to the peak value more than corresponding peak threshold filtered out, are obtained
The information of other synchronic group cells；
Second control module 53 is suitable for not filtering out from the not shielded peak value described more than corresponding
During the peak value of peak threshold, the receiving unit, arithmetic element and the second detection sub-unit is controlled to perform the PSS inspections of next round
It surveys.
In specific implementation, second detection module 52 can include：Second data cutout submodule 521, the second fortune
Operator module 522, the second comparison sub-module 523, the second acquisition submodule 524 and the second control submodule 525.Wherein：
The second data cutout submodule 521, suitable for the peak more than corresponding peak threshold filtered out according to
Value interception includes the data of SSS；
The second computing submodule 522, suitable for the data intercepted and local SSS sequences are made related operation；
Second comparison sub-module 523, suitable for by the result of the related operation respectively with corresponding peak threshold into
Row compares；
Second acquisition submodule 524 is filtered out from the peak value that the related operation obtains more than correspondence suitable for working as
During the peak value of peak threshold, the information of other corresponding synchronic group cells is obtained according to the peak value filtered out；
Second control submodule 525, suitable for ought not filtered out from the peak value that the related operation obtains be more than pair
When answering the peak value of peak threshold, second detection module is controlled to perform the SSS detections of next round.
In specific implementation, first detection sub-unit 331 according to signal by strong to the weak same synchronization of sequence detection
Other cell informations in group.Second detection sub-unit 332, according to signal by strong other synchronous group of mean peoples to weak sequence detection
The information in area.
With reference to Fig. 5, in specific implementation, the detection unit 33 can include：Comparing subunit 333, the 3rd detection
Unit 334 and control subelement 335.Wherein：
The comparing subunit 333, suitable for the peak value that obtains the related operation respectively with corresponding peak threshold into
Row compares；
3rd detection sub-unit 334 is filtered out from the peak value that the related operation obtains more than correspondence suitable for working as
Peak threshold peak value when, SSS detections are carried out according to the peak value filtered out more than corresponding peak threshold, are obtained corresponding adjacent
The information of cell；
The control subelement 335, suitable for that ought not filtered out from the peak value that the related operation obtains more than corresponding
During the peak value of peak threshold, the receiving unit, arithmetic element and the 3rd detection sub-unit is controlled to perform the PSS inspections of next round
It surveys.
In specific implementation, the 3rd detection sub-unit 334 can include：Data cutout module 3341, computing module
3342, the 3rd comparison module 3343 and the 3rd detection module 3344.Wherein：
The data cutout module 3341, the peak value more than corresponding peak threshold suitable for being filtered out according to intercept
Data comprising SSS；
The computing module 3342, suitable for the data intercepted and local SSS sequences are made related operation；
3rd comparison module 3343, suitable for the result of the related operation is carried out respectively with corresponding peak threshold
Compare；
3rd detection module 3344 corresponds to suitable for that ought not filter out to be more than from the peak value that the related operation obtains
During the peak value of peak threshold, the 3rd detection sub-unit is controlled to perform the SSS detections of next round.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Relevant hardware to be instructed to complete by program, which can be stored in a computer readable storage medium, storage
Medium can include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the scope of restriction.
Claims (14)
1. a kind of detection method of user terminal adjacent cell, which is characterized in that including：
Receive the data for including primary synchronization signal PSS that base station is sent；
Received data and local PSS sequences are made into related operation；
According to the peak value that related operation obtains, self-adapting detecting is carried out to adjacent cell, including：
The making choice property of peak value obtained is shielded according to detection target, and adjacent cell is carried out according to not shielded peak value
Self-adapting detecting, the detection target include：The cell of the cell of same synchronic group or different synchronic groups, wherein, Mei Getong
Step group corresponds to different peak value sections.
2. the detection method of user terminal adjacent cell as described in claim 1, which is characterized in that described according to detection target pair
Making choice property of the peak value shielding obtained, and self-adapting detecting is carried out to adjacent cell according to not shielded peak value, including：
When detecting the cell that target is same synchronic group, in the peak value obtained in related operation, by except to be detected k-th it is same
The corresponding off peak peak value shielding in group of mean people area is walked, and it is small to other in k-th of synchronic group according to not shielded peak value
The information in area carries out self-adapting detecting, and k≤K, k are positive integer, and K is the sum of synchronic group；
It, will be with having detected not in the peak value obtained in related operation when detecting the cell that target is different synchronic group
The corresponding peak value shielding with the peak value section of synchronic group cell, and according to not shielded peak value to cell in other synchronic groups
Information carries out self-adapting detecting.
3. the detection method of user terminal adjacent cell as claimed in claim 2, which is characterized in that the basis is not shielded
Peak value carries out self-adapting detecting to the information of other cells in k-th of synchronic group, including：
The peak value that the related operation is obtained is respectively compared with corresponding peak threshold；
When filtering out the peak value more than corresponding peak threshold in the peak value obtained from the related operation, according to what is filtered out
Peak value more than corresponding peak threshold carries out secondary synchronization signal SSS detections, obtains other cells in k-th of synchronic group
Otherwise information performs the PSS detections of next round.
4. the detection method of user terminal adjacent cell as claimed in claim 3, which is characterized in that the basis filters out big
Secondary synchronization signal SSS detections are carried out in the peak value of corresponding peak threshold, including：
According to the data for including SSS more than the peak value interception of corresponding peak threshold filtered out；
The data intercepted and local SSS sequences are made into related operation；
By the result of the related operation respectively compared with corresponding peak threshold；
When filtering out the peak value more than corresponding peak threshold in the peak value obtained from the related operation, according to what is filtered out
Peak value obtains the information of other cells in k-th of synchronic group, otherwise performs the SSS detections of next round.
5. the detection method of user terminal adjacent cell as claimed in claim 2, which is characterized in that the basis is not shielded
Peak value carries out self-adapting detecting to the information of cell in other synchronic groups, including：
Respectively by the not shielded peak value compared with corresponding peak threshold；
When filtering out the peak value more than corresponding peak threshold from the not shielded peak value, it is more than according to what is filtered out
The peak value of corresponding peak threshold carries out secondary synchronization signal SSS detections, obtains the information of other synchronic group cells, under otherwise performing
The PSS detections of one wheel.
6. the detection method of user terminal adjacent cell as claimed in claim 5, which is characterized in that the basis filters out big
Secondary synchronization signal SSS detections are carried out in the peak value of corresponding peak threshold, including：
According to the data for including SSS more than the peak value interception of corresponding peak threshold filtered out；
The data intercepted and local SSS sequences are made into related operation；
By the result of the related operation respectively compared with corresponding peak threshold；
When filtering out the peak value more than corresponding peak threshold in the peak value obtained from the related operation, according to what is filtered out
Peak value obtains the information of other corresponding synchronic group cells, otherwise performs the SSS detections of next round.
7. the detection method of user terminal adjacent cell as claimed in claim 2, which is characterized in that according to signal by strong to weak
Other cell informations in the information of cell in other synchronic groups of sequence detection or same synchronic group.
8. a kind of user terminal, which is characterized in that including：
Receiving unit, suitable for receiving the data for including PSS that base station is sent；
Arithmetic element, suitable for received data and local PSS sequences are made related operation；
Detection unit, suitable for being shielded according to detection target to the making choice property of peak value obtained, and according to not shielded peak
Value carries out adjacent cell self-adapting detecting, and the detection target includes：The cell of same synchronic group or different synchronic groups it is small
Area, wherein, each synchronic group corresponds to different peak value sections.
9. user terminal as claimed in claim 8, which is characterized in that the detection unit includes：
First detection sub-unit, suitable for when detect target be same synchronic group cell when, related operation obtain peak value in,
It will be shielded except the corresponding off peak peak value of k-th of synchronic group cell to be detected, and according to not shielded peak value to described
The information of other cells carries out self-adapting detecting in k-th of synchronic group, and k≤K, k are positive integer, and K is the sum of synchronic group；
Second detection sub-unit, suitable for when detect target be different synchronic groups cell when, related operation obtain peak value
In, the corresponding peak value in the peak value section of synchronic group cells different from what is detected is shielded, and according to not shielded peak value
Self-adapting detecting is carried out to the information of cell in other synchronic groups.
10. user terminal as claimed in claim 9, which is characterized in that first detection sub-unit includes：
First comparison module, suitable for the peak value that obtains the related operation respectively compared with corresponding peak threshold；
First detection module filters out the peak value more than corresponding peak threshold suitable for working as from the result of the related operation
When, secondary synchronization signal SSS detections are carried out according to the peak value more than corresponding peak threshold filtered out, obtain described k-th together
Walk the information of other cells in group；
First control module, suitable for the peak value more than corresponding peak threshold ought do not filtered out from the result of the related operation
When, the receiving unit, arithmetic element and the first detection sub-unit is controlled to perform the PSS detections of next round.
11. user terminal as claimed in claim 10, which is characterized in that the first detection module includes：
First data cutout submodule, the peak value interception more than corresponding peak threshold suitable for being filtered out according to include
The data of SSS；
First computing submodule, suitable for the data intercepted and local SSS sequences are made related operation；
First comparison sub-module, suitable for by the result of the related operation respectively compared with corresponding peak threshold；
First acquisition submodule, suitable for working as the peak filtered out from the peak value that the related operation obtains more than corresponding peak threshold
During value, the information of other cells in k-th of synchronic group is obtained according to the peak value filtered out；
First control submodule is more than corresponding peak threshold suitable for that ought not filtered out from the peak value that the related operation obtains
During peak value, the first detection module is controlled to perform the SSS detections of next round.
12. user terminal as claimed in claim 9, which is characterized in that second detection sub-unit, including：
Second comparison module, suitable for respectively by the not shielded peak value compared with corresponding peak threshold；
Second detection module filters out the peak value more than corresponding peak threshold suitable for working as from the not shielded peak value
When, secondary synchronization signal SSS detections are carried out according to the peak value more than corresponding peak threshold filtered out, obtain other synchronous group of mean peoples
The information in area；
Second control module, it is described more than corresponding peak threshold suitable for that ought not filtered out from the not shielded peak value
During peak value, the receiving unit, arithmetic element and the second detection sub-unit is controlled to perform the PSS detections of next round.
13. user terminal as claimed in claim 12, which is characterized in that second detection module includes：
Second data cutout submodule, the peak value interception more than corresponding peak threshold suitable for being filtered out according to include
The data of SSS；
Second computing submodule, suitable for the data intercepted and local SSS sequences are made related operation；
Second comparison sub-module, suitable for by the result of the related operation respectively compared with corresponding peak threshold；
Second acquisition submodule, suitable for working as the peak filtered out from the peak value that the related operation obtains more than corresponding peak threshold
During value, the information of other corresponding synchronic group cells is obtained according to the peak value filtered out；
Second control submodule is more than corresponding peak threshold suitable for that ought not filtered out from the peak value that the related operation obtains
During peak value, second detection module is controlled to perform the SSS detections of next round.
14. user terminal as claimed in claim 9, which is characterized in that first detection sub-unit is according to signal by by force extremely
Other cell informations in the same synchronic group of weak sequence detection, second detection sub-unit, according to signal by strong to weak suitable
Sequence detects the information of other synchronic group cells.
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