CN106817713B - The detection method of user terminal and its adjacent cell - Google Patents

The detection method of user terminal and its adjacent cell Download PDF

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Publication number
CN106817713B
CN106817713B CN201610270599.XA CN201610270599A CN106817713B CN 106817713 B CN106817713 B CN 106817713B CN 201610270599 A CN201610270599 A CN 201610270599A CN 106817713 B CN106817713 B CN 106817713B
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peak value
sss
pss
detection
time point
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CN106817713A (en
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洪波
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Beijing Ziguang Zhanrui Communication Technology Co Ltd
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Beijing Spreadtrum Hi Tech Communications Technology Co Ltd
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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
    • 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
    • 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

Abstract

A kind of detection method of user terminal and its adjacent cell.The described method includes: receiving the data comprising primary synchronization signal PSS that base station is sent；Received data and local PSS sequence are made into related operation；In the peak value that related operation obtains, the corresponding peak value in the peak value section of synchronic group cells different from what is detected is shielded, and according to the information of not shielded other synchronic group cells of peak detection, wherein each synchronic group corresponds to different peak value sections；Other cell informations in the same synchronic group are detected according to the cell information detected in same synchronic group.The calculation amount of adjacent cell detection process can be reduced using the method, and reduces the false detection rate of adjacent cell detection process.

Description

The detection method of user terminal and its adjacent cell
This application claims submission on November 30th, 2015 Patent Office of the People's Republic of China, application No. is 201510859777.8, invention names The referred to as priority of the Chinese patent application of " detection method of user terminal and its adjacent cell ", entire contents pass through reference knot 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 technique
In mobile communication system, user terminal booting after, by cell initial searching process, reside in suitably service it is small In area, and gradually 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 measurement is constantly tracked to the communication quality of the adjacent cell detected, to carry out cell weight for it Choosing and switching are prepared.
Currently, user terminal is when detecting adjacent cell after resident service cell, it will usually receive base station transmission include Primary synchronization signal (PSS) data.Later, user terminal successively carries out PSS detection and SSS detection to received data, with Obtain the information of respective cell.
However, calculation amount when carrying out SSS detection is larger in above-mentioned adjacent cell detection process, entire adjacent cell detection Process is extremely complex.In addition, there is certain interference in SSS detection process, cause the false detection rate of above-mentioned adjacent cell detection process compared with It is high.
Summary of the invention
The problem to be solved in the present invention is how to reduce the calculation amount of adjacent cell detection process, and reduce adjacent cell and detected The false detection rate of journey.
To solve the above problems, the embodiment of the invention provides a kind of detection method of user terminal adjacent cell, the side Method includes: the data comprising primary synchronization signal PSS for receiving base station and sending；Received data and local PSS sequence are made Related operation；It is in the peak value that related operation obtains, the peak value section of synchronic group cells different from what is detected is corresponding Peak value shielding, and according to the information of not shielded other synchronic group cells of peak detection, wherein each synchronic group is corresponding different Peak value section；Other cells letter in the same synchronic group is detected according to the cell information detected in same synchronic group Breath.
Optionally, the information of not shielded other synchronic group cells of peak detection of the basis, comprising: to it is described not by The peak value of shielding is screened；Secondary synchronization signal SSS detection is carried out according to the peak value filtered out.
Optionally, described that the not shielded peak value is screened, comprising: the peak value obtained from the related operation In, choose the corresponding peak value d_pss (i) of each preset time point d_time_pss (i), wherein i i-th of time point of expression, i≤ N, i are positive integer, and N is the sum of preset time point；The corresponding peak value of each preset time point d_time_pss (i) that will be selected D_pss (i) peak threshold d_thresld_pss (i) corresponding with the preset time point d_time_pss (i) is compared respectively Compared with filtering out the peak value of d_pss (i) > d_thresld_pss (i).
Optionally, the peak value that the basis filters out carries out secondary synchronization signal SSS detection, comprising: as d_pss (i) > d_ Thresld_pss (i) includes the data of SSS according to the d_pss (i) interception；By the data intercepted and local SSS sequence Make related operation, and from the peak value that related operation obtains, chooses the corresponding peak value d_ of each preset time point d_time_sss (j) Sss (j), wherein j indicates that j-th of preset time point, j≤M, j are positive integer, and M is the sum of preset time point；It will select The corresponding peak value d_sss (j) of each preset time point d_time_sss (j) and the preset time point d_time_sss (j) it is right The peak threshold d_thresld_sss (j) answered is compared respectively；As d_sss (i) > d_thresld_sss (i), according to The d_sss (i) obtains the information of other corresponding synchronic group cells.
Optionally, described that other in the same synchronic group are detected according to the cell information detected in same synchronic group Cell information, comprising: according to the information of the cell detected in k-th of synchronic group, k-th of synchronic group is executed except dry Operation is disturbed, k≤K, k are positive integer, and K is the sum of synchronic group；Respectively according to the peak value section except k-th of synchronic group after interference In peak value, interception include PSS data；The data intercepted and local PSS sequence are made into related operation respectively；Basis respectively The result of related operation detects other cell informations in k-th of synchronic group.
It is optionally, described that other cell informations in k-th of synchronic group are detected according to the result of related operation, comprising: The peak value obtained to the related operation screens；SSS detection is carried out to the peak value filtered out.
Optionally, the peak value obtained to the related operation screens, comprising: obtains from the related operation In peak value, the corresponding peak value d_pss (i) of each preset time point d_time_pss (i) is chosen, wherein i indicates i-th of time point, I≤N, i are positive integer, and N is the sum of preset time point；Each preset time point d_time_pss (i) selected is corresponding Peak value d_pss (i) peak threshold d_thresld_pss (i) corresponding with the preset time point d_time_pss (i) respectively into Row compares, and filters out the peak value of d_pss (i) > d_thresld_pss (i).
Optionally, the described pair of peak value filtered out carries out SSS detection, comprising: as d_pss (i) > d_thresld_pss It (i) include the data of SSS according to the d_pss (i) interception when；By the data intercepted fortune related to local SSS sequence work It calculates；From the peak value that related operation obtains, the corresponding peak value d_sss (j) of each preset time point d_time_sss (j) is chosen, In, j indicates that j-th of preset time point, j≤M, j are positive integer, and M is the sum of preset time point；By select it is each default when Between the corresponding peak value d_sss (j) of point d_time_sss (j) peak value threshold corresponding with the preset time point d_time_sss (j) Value d_thresld_sss (j) is compared respectively；As d_sss (j) > d_thresld_sss (j), according to the d_sss (j) information of respective cell in k-th of synchronic group is obtained.
Optionally, according to signal by the strong information to the cell in other synchronic groups of weak sequence detection or same synchronic group In other cell informations.
Optionally, the information of not shielded other synchronic group cells of peak detection of the basis, comprising: respectively will be described Not shielded peak value is compared with corresponding peak threshold, is filtered out in the not shielded peak value and is greater than corresponding peak It is worth the peak value of threshold value；Secondary synchronization signal SSS detection is carried out according to the peak value greater than corresponding peak threshold filtered out, obtains it The information of his synchronic group cell.
Optionally, when the peak value for being greater than corresponding peak threshold is not filtered out from the not shielded peak value When, the method also includes: execute the PSS detection of next round.
Optionally, the basis filters out peak value carries out SSS detection, comprising: according to it is described filter out be greater than and correspond to Peak threshold peak value interception include SSS data；The data intercepted and local SSS sequence are made into related operation；From phase It closes in the peak value that operation obtains, filters out the peak value for being greater than corresponding peak threshold；It is obtained according to the peak value filtered out corresponding The information of other synchronic group cells.
Optionally, when not filtering out the peak value for being greater than corresponding peak threshold from the peak value that the related operation obtains, The method also includes: execute the SSS detection of next round.
Optionally, described that other in the same synchronic group are detected according to the cell information detected in same synchronic group Cell information, comprising:, will be in addition to the corresponding peak value of k-th of synchronic group cell to be detected in the peak value that related operation obtains Peak value shielding, and in k-th of synchronic group according to not shielded peak detection other cells information, wherein it is each Synchronic group corresponds to different peak value sections, and k≤K, k are positive integer, and K is the sum of synchronic group.
Optionally, in k-th of synchronic group according to not shielded peak detection other cells information, packet It includes: the not shielded peak value being compared with corresponding peak threshold respectively, is filtered out greater than corresponding peak threshold Peak value；SSS detection is carried out according to the peak value greater than corresponding peak threshold filtered out, is obtained in k-th of synchronic group The information of other cells.
Optionally, when not filtering out the peak value greater than corresponding peak threshold from the not shielded peak value, institute State method further include: execute the PSS detection of next round.
Optionally, the basis filters out peak value carries out SSS detection, comprising: according to it is described filter out be greater than and correspond to Peak threshold peak value interception include SSS data；The data intercepted and local SSS sequence are made into related operation；From phase It closes in the peak value that operation obtains, filters out the peak value for being greater than corresponding peak threshold；The kth is obtained according to the peak value filtered out The information of other cells in a synchronic group.
Optionally, when not filtering out the peak value for being greater than corresponding peak threshold from the peak value that the related operation obtains, The method also includes: execute the SSS detection of next round.
The embodiment of the invention also provides a kind of user terminal, the user terminal includes: receiving unit, is suitable for receiving base Stand send the data comprising PSS；Arithmetic element, suitable for received data and local PSS sequence are made related operation；The One detection unit, suitable in the peak value that related operation obtains, by the peak value section of synchronic group cells different from what is detected Corresponding peak value shielding, and according to the information of not shielded other synchronic group cells of peak detection, wherein each synchronic group pair Answer different peak value sections；Second detection unit, suitable for according to the cell information detection detected in same synchronic group Other cell informations in same synchronic group.
Optionally, the first detection unit includes: the first screening subelement, be suitable for the not shielded peak value into Row screening；First detection sub-unit, suitable for carrying out SSS detection to the peak value filtered out.
Optionally, the first screening subelement includes: the first selection module, suitable for from the peak that the related operation obtains In value, the corresponding peak value d_pss (i) of each preset time point d_time_pss (i) is chosen, wherein i indicates i-th of time point, i ≤ N, i are positive integer, and N is the sum of preset time point；First screening module, suitable for each preset time point d_ that will be selected The corresponding peak value d_pss (i) of time_pss (i) peak threshold d_ corresponding with the preset time point d_time_pss (i) Thresld_pss (i) is compared respectively, filters out the peak value of d_pss (i) > d_thresld_pss (i).
Optionally, first detection sub-unit includes: the first data cutout module, is suitable for working as d_pss (i) > d_ It include the data of SSS according to the d_pss (i) interception when thresld_pss (i)；Second chooses module, suitable for will be intercepted Data and local SSS sequence make related operation, and from the peak value that related operation obtains, choose each preset time point d_ The corresponding peak value d_sss (j) of time_sss (j), wherein j indicates j-th of preset time point, and j≤M, j are positive integer, and M is pre- If the sum at time point；Second screening module, suitable for the corresponding peak value of each preset time point d_time_sss (j) that will be selected D_sss (j) peak threshold d_thresld_sss (i) corresponding with the preset time point d_time_sss (j) is compared respectively Compared with；Module is obtained, is suitable for as d_sss (i) > d_thresld_sss (i), is obtained according to the d_sss (i) corresponding The information of other synchronic group cells.
Optionally, the second detection unit includes: except interference subelement, suitable for having detected according in k-th of synchronic group The information of cell out executes except interference operation k-th of synchronic group, and k≤K, k are positive integer, and K is the total of synchronic group Number；Data cutout subelement, suitable for including according to peak value, interception in the peak value section except k-th of synchronic group after interference respectively The data of PSS；Operation subelement, suitable for the data intercepted and local PSS sequence are made related operation respectively；Second detection Unit, suitable for detecting other cell informations in k-th of synchronic group according to the result of related operation respectively.
Optionally, second detection sub-unit, comprising: third screening module, suitable for what is obtained to the related operation Peak value is screened；Second detection module, suitable for carrying out SSS detection to the peak value filtered out.
Optionally, the third screening module includes: the first selection submodule, suitable for from the peak that the related operation obtains In value, the corresponding peak value d_pss (i) of each preset time point d_time_pss (i) is chosen, wherein i indicates i-th of time point, i ≤ N, i are positive integer, and N is the sum of preset time point；First detection sub-module, suitable for each preset time point d_ that will be selected The corresponding peak value d_pss (i) of time_pss (i) peak threshold d_ corresponding with the preset time point d_time_pss (i) Thresld_pss (i) is compared respectively, filters out the peak value of d_pss (i) > d_thresld_pss (i).
Optionally, second detection module, comprising: data cutout submodule is suitable for working as d_pss (i) > d_ It include the data of SSS according to the d_pss (i) interception when thresld_pss (i)；Operation submodule, suitable for will be intercepted Data and local SSS sequence make related operation；Second chooses submodule, each suitable for choosing from the peak value that related operation obtains The corresponding peak value d_sss (j) of preset time point d_time_sss (j), wherein j indicates j-th of preset time point, and j≤M, j are Positive integer, M are the sum of preset time point；Second detection sub-module, suitable for each preset time point d_time_ that will be selected The corresponding peak value d_sss (j) of sss (j) peak threshold d_thresld_ corresponding with the preset time point d_time_sss (j) Sss (j) is compared respectively；Acquisition submodule is suitable for as d_sss (j) > d_thresld_sss (j), according to the d_ Sss (j) obtains the information of respective cell in k-th of synchronic group.
Optionally, the first detection unit, according to signal by the strong letter to other synchronic group cells of weak sequence detection Breath；The second detection unit is according to signal by strong to other cell informations in the weak same synchronic group of sequence detection.
Optionally, the first detection unit includes: the second screening subelement, and being suitable for respectively will the not shielded peak Value is compared with corresponding peak threshold, filters out the peak for being greater than corresponding peak threshold in the not shielded peak value Value；Second detection sub-unit, suitable for carrying out secondary synchronization signal SSS inspection according to the peak value greater than corresponding peak threshold filtered out It surveys, obtains the information of other synchronic group cells.
Optionally, the method also includes first control units, suitable for not from the peak value that the related operation obtains When filtering out the peak value for being greater than corresponding peak threshold, controls the receiving unit, arithmetic element and the first screening subelement and hold The PSS of row next round is detected.
Optionally, second detection sub-unit includes: the second data cutout module, big suitable for what is filtered out according to In the data that the peak value interception of corresponding peak threshold includes SSS；First computing module, suitable for by the data intercepted and local SSS sequence makees related operation；Third screening module is greater than corresponding peak value suitable for filtering out from the peak value that related operation obtains The peak value of threshold value；First detection module, suitable for obtaining the information of other corresponding synchronic group cells according to the peak value filtered out.
Optionally, the user terminal further include: the second control unit, suitable for ought be not from the peak that the related operation obtains When filtering out the peak value for being greater than corresponding peak threshold in value, the SSS that second detection sub-unit repeats next round is controlled Detection.
Optionally, the second detection unit, suitable for that will remove k-th to be detected in the peak value that related operation obtains The corresponding off peak peak value shielding of synchronic group cell, and its in k-th of synchronic group according to not shielded peak detection The information of his cell, wherein each synchronic group corresponds to different peak value sections, and k≤K, k are positive integer, and K is the total of synchronic group Number.
Optionally, the second detection unit includes: third screening subelement, and being suitable for will the not shielded peak value point It is not compared with corresponding peak threshold, filters out the peak value greater than corresponding peak threshold；Third detection sub-unit, is suitable for SSS detection is carried out according to the peak value greater than corresponding peak threshold filtered out, obtains other cells in k-th of synchronic group Information.
Optionally, the user terminal further include: third control unit, suitable for ought be not from the result of the related operation When filtering out the peak value greater than corresponding peak threshold, the PSS detection that the second detection unit executes next round is controlled.
Optionally, the third detection sub-unit includes: third data cutout module, big suitable for what is filtered out according to In the data that the peak value interception of corresponding peak threshold includes SSS；Second computing module, suitable for by the data intercepted and local SSS sequence makees related operation；4th screening module is greater than corresponding peak value suitable for filtering out from the peak value that related operation obtains The peak value of threshold value；Second detection module, suitable for obtaining other cells in k-th of synchronic group according to the peak value filtered out Information.
Optionally, the user terminal further include: the 4th control unit, suitable for ought be not from the peak that the related operation obtains When filtering out the peak value for being greater than corresponding peak threshold in value, the SSS detection that the third detection sub-unit executes next round is controlled.
Compared with prior art, technical solution of the present invention has at least the following advantages:
After the data received and local PSS sequence are made related operation, pass through the peak value that will be obtained in related operation In synchronic group cells different from what is detected the corresponding peak value shielding of peak value section, and then can be according to not shielded peak Value detects the information of other synchronic group cells, described with together further according to the cell information detection detected in same synchronic group Walk other cell informations in group.Since the corresponding peak value in peak value section of the different synchronic group cells detected has shielded, because This can reduce the quantity of peak value when carrying out subsequent detection, reduce the calculation amount in detection process.And it is detected by shielding The corresponding peak value in peak value section of different synchronic group cells out, it is possible to reduce the interference to subsequent detection reduces false detection rate.
Further, the peak value for being greater than corresponding peak threshold is not being filtered out from the not shielded peak value When, the PSS detection of next round is executed, so that entire asynchronous cell detection process includes the PSS detection more taken turns, and then can be passed through The time span of each round PSS detection is flexibly set, and is detected by wheel, the peak value for being greater than corresponding peak threshold is obtained Afterwards, then subsequent SSS detection is carried out, can effectively shortens the time required to being screened to not shielded peak value, further mentions High detection efficiency.
Further, it when not filtering out the peak value for being greater than corresponding peak threshold from the peak value that related operation obtains, holds The SSS of row next round is detected, so that entire asynchronous cell detection process is divided into more wheel SSS detections, and then can be by neatly The time span of each round SSS detection is set, and is detected by wheel, is obtained after being greater than the peak value of corresponding peak threshold, then The information of other corresponding synchronic group cells, the peak that can be effectively shortened to related operation acquisition are obtained according to peak value obtained The time required to value is screened, detection efficiency is further increased.
Further, in the result of related operation, the corresponding peak value of cell of k-th of synchronic group is filtered out, that is, By except the corresponding off peak peak value shielding of the cell of k-th of synchronic group, PSS detection is successively carried out further according to the peak value filtered out And SSS detection, it is possible thereby to when reducing k-th of synchronic group of subsequent detection peak value quantity, reduce detection process in calculation amount, Improve the detection efficiency of adjacent cell.It, can be with and by will be except the corresponding off peak peak value shielding of the cell of k-th of synchronic group The interference to subsequent detection is reduced, false detection rate is reduced.
Detailed description of the invention
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 method flow diagram of other cell informations in same synchronic group in the embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of user terminal in the embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of first detection unit in the embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of second detection unit in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another user terminal in the embodiment of the present invention.
Specific embodiment
Currently, user terminal after the data comprising PSS for receiving base station transmission, first carries out PSS inspection to the data Survey, then to the data carry out SSS detection, so as to according to SSS detect as a result, obtain respective cell information.Wherein, PSS detection is carried out to the data, i.e., the data and local PSS sequence are made into related operation, to generate multiple peak values.To institute It states data and carries out SSS detection, i.e., corresponding data are intercepted according to the detected peak value of PSS, then by the data being truncated to and originally Ground SSS sequence makees related operation, so as to obtain corresponding small according to the result of related operation and according to identical detection time The information in area completes the detection process to adjacent cell.
However, the data can generate more peak value after PSS is detected in above-mentioned adjacent cell detection process, because This, when carrying out SSS detection according to the peak value, the calculation amount that will lead to the SSS detection is larger.Also, PSS detection generates In peak value, including the peak value of the cell detected, and the peak value of the cell detected can detect SSS and generate interference, lead SSS is caused to detect in cell obtained, false detection rate is higher.
In view of the above-mentioned problems, the embodiment provides a kind of detection method of user terminal adjacent cell, the side Method is after making related operation for the data received and local PSS sequence, will be with by by the peak value that related operation obtains The corresponding peak value shielding in the peak value section of the different synchronic group cells detected, and then can be examined according to not shielded peak value The information for surveying other synchronic group cells detects the same synchronic group further according to the cell information detected in same synchronic group In other cell informations.It, can since the corresponding peak value in peak value section of the different synchronic group cells detected has shielded The quantity of peak value when subsequent detection is carried out to reduce, and reduces the calculation amount in detection process.And it is detected by shielding The corresponding peak value in peak value section of different synchronic group cells, it is possible to reduce the interference to subsequent detection reduces false detection rate.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention Specific embodiment explain in detail.
As shown in Figure 1, the embodiment of the 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 comprising primary synchronization signal PSS that base station is sent are received.
In specific implementation, after user terminal resides in suitable serving cell, it can receive the number that multiple base stations are sent According to, may include the information such as PSS, SSS in the data, to each base station send data be both needed to carry out adjacent cell detection. 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 for data r.
Step 12, received data and local PSS sequence are made into related operation.
In specific implementation, the local PSS sequence 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 sequence progress, obtain channel impulse Response.Desired peak value can be obtained according to the channel impulse response, may determine that the position of PSS according to the peak value.
Step 13, in the peak value that related operation obtains, by the peak value section of synchronic group cells different from what is detected Corresponding peak value shielding, and according to the information of not shielded other synchronic group cells of peak detection.
In an embodiment of the present invention, each synchronic group corresponds to different peak value sections.The quantity of synchronic group and each same The corresponding peak value section of step group can be preset.It, should when the peak value of a cell falls into the corresponding peak value section of a synchronic group Cell is the cell of the synchronic group.The cell of different synchronic groups is asynchronous cell.For example, the corresponding peak value section synchronic group A is [80,100], the corresponding peak value section synchronic group B be [60,80), the corresponding peak value of cell 1 is 85, and the corresponding peak value of cell 2 is 74, then cell 1 is the cell of synchronic group A, and cell 2 is the cell of synchronic group B, and cell 1 and cell 2 are asynchronous cell.
Since the adjacent cell of the user terminal may correspond to multiple synchronic groups, in the peak value that related operation obtains In, first the corresponding peak value in the peak value section of synchronic group cells different from what is detected can be shielded, further according to not shielded Peak value detect the information of other synchronic group cells one by one.Wherein, the different synchronic group cells detected include at least The resident corresponding synchronic group of serving cell of the user terminal.
In specific implementation, according to not shielded peak value, other can be detected one by one using a variety of methods and synchronize a group of mean people The information in area.
In one embodiment of this invention, first the not shielded peak value can be screened, further according to filtering out Peak value carry out SSS detection, finally according to SSS detection result obtain respective cell information.
In specific implementation, the not shielded peak value can be screened using a variety of methods.Of the invention In one embodiment, N number of preset time point can be first preset, and a peak threshold is arranged to each preset time point；Later, From the peak value that the related operation obtains, the corresponding peak value of each preset time point is chosen, and by each preset time point pair The peak value answered peak threshold corresponding with the preset time point is compared, filter out greater than corresponding peak threshold it is default when Between put corresponding peak value.
For example, the corresponding peak threshold of i-th of preset time point d_time_pss (i) is d_thresld_pss (i), In the peak value that related operation obtains, the corresponding peak value of i-th of preset time point d_time_pss (i) is d_pss (i).Compare d_ The size of pss (i) and d_thresld_pss (i), if d_pss (i) > d_thresld_pss (i), the d_pss (i) is i.e. For the peak value filtered out.It is possible thereby to filter out multiple peak values.
In another embodiment of the invention, the information of other synchronic group cells is detected one by one according to not shielded peak value When, first the not shielded peak value can be compared respectively with corresponding peak threshold, filter out and described do not shielded Peak value in be greater than the peak value of corresponding peak threshold, complete to detect the PSS of the data, be greater than pair further according to what is filtered out The peak value for the peak threshold answered carries out SSS detection, obtains the information of other synchronic group cells.
In specific implementation, the detection process of asynchronous cell can only include the PSS detection of a wheel, also may include several The PSS of wheel is detected.When the detection process of asynchronous cell includes the PSS detection of several wheels, can be divided according to the length of time The detection of each round, that is, according to the sequencing of time, detected by wheel.The wheel number specifically detected can be according to reality Situation is set.The detection process of asynchronous cell is divided into the PSS detection of several wheels, and then can be each by being rationally arranged The time span of wheel quickly, neatly obtains the peak value that can be used for SSS detection, further increases detection efficiency.
Specifically, multiple preset time points are preset, execute the PSS detection of a wheel in each preset time point.It is each The PSS detection of wheel can be implemented in accordance with the following steps: obtaining the data comprising PSS in a certain preset time point, and do related fortune It calculates；In the peak value that related operation obtains, by the corresponding peak value screen in peak value section of synchronic group cells different from what is detected It covers, and filters out the peak value greater than corresponding peak threshold from unscreened peak value, to carry out secondary synchronization signal SSS detection. If the PSS detection when front-wheel does not filter out the peak value for being greater than corresponding peak threshold from the not shielded peak value, The PSS detection of next round is then executed, that is, is repeated the above process in next preset time point, one default up to wherein Time point filters out the peak value for being greater than corresponding peak threshold from the not shielded peak value.
In specific implementation, secondary synchronization signal SSS detection can be carried out to the peak value filtered out using a variety of methods. It should be noted that the method for carrying out SSS detection to each peak value filtered out may be the same or different.
In one embodiment of this invention, M preset time point can be first preset, and each preset time point is set Set a peak threshold.It can include the data of SSS according to the peak value interception filtered out after obtaining the peak value that one filters out, The data intercepted and local SSS sequence are made into related operation again.Later, it from the peak value that the related operation obtains, chooses The corresponding peak value of each preset time point, and by the corresponding peak value of each preset time point peak value corresponding with the preset time point Threshold value is compared, it is last according to peak value corresponding to the preset time point for being greater than corresponding peak threshold obtain accordingly other The information of synchronic group cell.
For example, the corresponding peak threshold of j-th of preset time point d_time_sss (j) is d_thresld_sss (j), In the peak value that related operation obtains, the corresponding peak value of j-th of preset time point d_time_sss (j) is d_sss (j).Compare d_ The size of sss (j) and d_thresld_sss (j), if d_sss (j) > d_thresld_sss (j), according to the d_sss (j) information of other corresponding synchronic group cells is obtained.
It in another embodiment of the invention, can basis when carrying out SSS detection according to the peak value that PSS detection filters out The peak value interception filtered out includes the data of SSS, then the data intercepted and local SSS sequence are made related operation.It Afterwards, the peak value which obtains is compared with corresponding peak threshold respectively, it is last according to greater than corresponding peak The peak value for being worth threshold value obtains the information of other corresponding synchronic group cells.The data intercepted and local SSS sequence are being made into phase Before closing operation, first the data intercepted can also be executed except interference operation, to reduce false detection rate.
In specific implementation, the detection process of asynchronous cell can only include the SSS detection of a wheel, also may include several The SSS of wheel is detected.When the detection process of adjacent cell includes the SSS detection of several wheels, can be divided according to the length of time every The detection of one wheel, that is, according to the sequencing of time, detected by wheel.The wheel number specifically detected can be according to practical feelings Condition is set.The detection process of asynchronous cell is divided into the SSS detection of several wheels, and then can be by the way that each round is rationally arranged Time span, quickly, neatly obtain can further increase detection efficiency with the peak value of cell detection.
Specifically, multiple preset time points are preset, execute the SSS detection of a wheel in each preset time point.It is each The SSS detection of wheel can be implemented in accordance with the following steps: obtaining the data comprising SSS in a certain preset time point, and do related fortune It calculates；In the peak value that related operation obtains, the peak value greater than corresponding peak threshold is filtered out, as the peak for cell detection Value.If the SSS detection when front-wheel does not filter out the peak value for being greater than corresponding peak threshold, the SSS inspection of next round is executed 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 biggish peak value, can also correspond to lesser peak value, and signal is weak Cell usually corresponds to lesser peak value, therefore, can be according to signal by strong when detecting the information of the cell in other synchronic groups It is detected to weak sequence, 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 formerly detecting the weak cell of signal, the strong cell of signal is corresponding smaller Peak value detection is interfered, so as to improve detection efficiency, reduce false detection rate.
For example, the cell detected includes: the cell 1 in synchronic group A, cell 2 and cell 3 in synchronic group B then may be used To detect the letter of the cell 4 in synchronic group C according to the information of the cell 1 in synchronic group A, the cell 2 in synchronic group B and cell 3 Breath.Further according to the cell 1 in synchronic group A, the information of 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.It continues to test according to the method described above, until stopping inspection when meeting the condition for stopping detection It surveys.
It should be noted that progress SSS detection time is unrestricted, can both all qualified peak values be being filtered out SSS detection is successively carried out according to the peak value filtered out respectively again afterwards, it can also be after often filtering out a qualified peak value, i.e., SSS detection is carried out according to the peak value filtered out.
Step 14, other cells in the same synchronic group are detected according to the cell information detected in same synchronic group Information.
In specific implementation, according to the cell information detected in same synchronic group, a variety of methods, detection can be used Other cell informations in the same synchronic group.
As shown in Fig. 2, in one embodiment of this invention, its in the same synchronic group can be detected with the following method His cell information.Specifically, the method may include following steps:
Step 21, according to the information of the cell detected in k-th of synchronic group, k-th of synchronic group execution is removed Interference operation, k≤K, k are positive integer, and K is the sum of synchronic group.
In specific implementation, according to the information of the cell detected in k-th of synchronic group, to k-th of synchronic group It executes except interference operation, i.e., in the corresponding peak value section of k-th of synchronic group, rejecting has detected the corresponding peak of cell removed Value avoids the cell detected from generating interference to subsequent detection, reduces false detection rate.Wherein, except the specific method of interference operation There are many, herein with no restriction, but no matter using where method progress is described except interference operation, do not constitute to limit of the invention System, and it is within the scope of the present invention.
Step 22, respectively according to the peak value in the peak value section except k-th of synchronic group after interference, interception includes PSS's Data.
Step 23, the data intercepted and local PSS sequence are made into related operation respectively.
Step 24, other cell informations in k-th of synchronic group are detected according to the result of related operation respectively.
About step 22-24, in specific implementation, k-th synchronic group is executed except after interference operation, first according to described the Remaining peak value in the peak value section of k synchronic group, interception include the data of PSS.Later, by the data intercepted and local PSS sequence makees related operation, obtains multiple peak values, small further according to other in k-th of synchronic group described in peak detection obtained The information in area.Certainly, detection can only obtain the information of a cell in k-th of synchronic group every time, it is also possible to obtain described The information of multiple cells in k-th of synchronic group.
It may include cell 2, cell 3, cell 6 etc. in synchronic group B for example, k-th of synchronic group is synchronic group B, In, cell 2 is the information of the cell detected, and cell 3, cell 6 are undetected cell.Therefore, detection cell 3 and When the information of cell 6, the peak value of cell 2 can be first rejected in the corresponding peak value section synchronic group B, then respectively according to synchronic group Remaining peak value intercepts corresponding data in the corresponding peak value section B.The data intercepted are made into phase with local PSS sequence respectively Operation is closed, then detects the information of cell 3 according to the result of related operation respectively.After detecting the information of cell 3, further according to small The information of area 2 and cell 3 repeats above-mentioned detection process, detects the information of cell 6.
In another embodiment of the invention, described same according to the cell information detection detected in same synchronic group Other cell informations in synchronic group, including；In the peak value that related operation obtains, k-th of synchronic group cell to be detected will be removed Corresponding off peak peak value shielding, and in k-th of synchronic group according to not shielded peak detection other cells letter Breath.Since the corresponding peak value in peak value section of the different synchronic group cells detected has shielded, after progress can be reduced The quantity of peak value when the cell of the different synchronic group of continuous detection, that is, when reducing subsequent detection asynchronous cell peak value quantity, The calculation amount in detection process is reduced, the detection efficiency of adjacent cell is improved.And the different synchronic groups detected by shielding The corresponding peak value in peak value section of cell, it is possible to reduce the interference to subsequent detection reduces false detection rate.
In specific implementation, according to the related operation as a result, can be detected using a variety of methods, to obtain State other cell informations in k-th of synchronic group.
In one embodiment of this invention, the peak value that can first obtain to the related operation screens, then to screening Peak value out carries out SSS detection, to obtain other cell informations in k-th of synchronic group.
Wherein, the peak value obtained to the related operation screens, and carries out SSS detection to the peak value filtered out There are a variety of methods.
In one embodiment of this invention, the peak value that can be obtained with the following method to related operation screens: can First to preset N number of preset time point, and a peak threshold is arranged to each preset time point；Later, from the related fortune It calculates in the peak value obtained, chooses the corresponding peak value of each preset time point, and by the corresponding peak value of each preset time point and be somebody's turn to do The corresponding peak threshold of preset time point is compared, and is filtered out corresponding to the preset time point greater than corresponding peak threshold Peak value.
For example, the corresponding peak threshold of i-th of preset time point d_time_pss (i) is d_thresld_pss (i), In the peak value that related operation obtains, the corresponding peak value of i-th of preset time point d_time_pss (i) is d_pss (i).Compare d_ The size of pss (i) and d_thresld_pss (i), if d_pss (i) > d_thresld_pss (i), the d_pss (i) is i.e. For the peak value filtered out.
In another embodiment of the invention, other in k-th of synchronic group according to not shielded peak detection are small When the information in area, first the not shielded peak value can be compared with corresponding peak threshold respectively, filter out and be greater than The peak value of corresponding peak threshold, it is final that SSS detection is carried out according to the peak value greater than corresponding peak threshold filtered out, it obtains The information of other cells in k-th of synchronic group.
It should be noted that the detection process of each synchronic group cell can only include the PSS detection of a wheel, also can wrap Include the PSS detection of several wheels.When the detection process of each synchronic group cell include several wheels PSS detection when, can according to when Between length divide the detection of each round, that is, according to the sequencing of time, detected by wheel.The wheel number specifically detected It can be set according to the actual situation.The detection process of each synchronic group cell is divided into the PSS detection of several wheels, Jin Erke Quickly, neatly to obtain the peak value that can be used for SSS detection, further mention by the time span that each round is rationally arranged High detection efficiency.
Specifically, multiple preset time points are preset, execute the PSS detection of a wheel in each preset time point.It is each The PSS detection of wheel can be implemented in accordance with the following steps: obtaining the data comprising PSS in 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 greater than corresponding The peak value of peak threshold, to carry out SSS detection.If being greater than corresponding peak threshold described in not filtering out when the PSS detection of front-wheel Peak value, then execute the PSS detection 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 greater than corresponding peak threshold.
In one embodiment of this invention, SSS detection: Ke Yixian can be carried out to the peak value filtered out with the following method M preset time point is preset, and a peak threshold is arranged to each preset time point.After obtaining the peak value that one filters out, It can include the data of SSS according to the peak value interception filtered out, then the data intercepted are related to local SSS sequence work Operation.Later, from the peak value that the related operation obtains, the corresponding peak value of each preset time point is chosen, and will be each pre- It is last according to greater than corresponding peak value if time point corresponding peak value peak threshold corresponding with the preset time point is compared Peak value corresponding to the preset time point of threshold value obtains the information of respective cell in k-th of synchronic group.
For example, the corresponding peak threshold of j-th of preset time point d_time_sss (j) is d_thresld_sss (j), In the peak value that related operation obtains, the corresponding peak value of j-th of preset time point d_time_sss (j) is d_sss (j).Compare d_ The size of sss (j) and d_thresld_sss (j), if d_sss (j) > d_thresld_sss (j), according to the d_sss (j) information of respective cell in k-th of synchronic group is obtained.
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 multiple cells in a synchronic group can be obtained according to a peak value, can also only obtain in a synchronic group The information of one cell.Wherein, the strong cell of signal can correspond to biggish peak value, can also correspond to lesser peak value, and signal Weak cell usually corresponds to lesser peak value, therefore, can be according to signal when detecting the information of the cell in same synchronic group It is detected by strong to weak sequence, i.e., first detects the strong cell of signal, further according to the information of the strong cell of signal, detect signal Weak cell, when avoiding formerly detecting the weak cell of signal, the corresponding lesser peak value of the strong cell of signal causes to do to detection It disturbs, so as to improve detection efficiency, reduces false detection rate.
It in another embodiment of the invention, can be first according to the sieve when carrying out SSS detection according to the peak value filtered out The peak value interception greater than corresponding peak threshold selected includes the data of SSS, then by the data intercepted and local SSS sequence Make related operation, and then from the peak value that related operation obtains, the peak value for being greater than corresponding peak threshold is filtered out, finally according to institute The peak value filtered out obtains the information of other cells in k-th of synchronic group.
It should be noted that the detection process of each synchronic group cell can only include the SSS detection of a wheel, also can wrap Include the SSS detection of several wheels.When the detection process of each synchronic group cell include several wheels SSS detection when, can according to when Between length divide the detection of each round, that is, according to the sequencing of time, detected by wheel.The wheel number specifically detected It can be set according to the actual situation.The detection process of each synchronic group cell is divided into the SSS detection of several wheels, Jin Erke Quickly, neatly to obtain and can further increase inspection with the peak value of cell detection by the time span that each round is rationally arranged Survey efficiency.
Specifically, multiple preset time points are preset, execute the SSS detection of a wheel in each preset time point.It is each The SSS detection of wheel can be implemented in accordance with the following steps: obtaining the data comprising SSS in a certain preset time point, and do related fortune It calculates；In the peak value that related operation obtains, the peak value greater than corresponding peak threshold is filtered out, as the peak for cell detection Value.If the SSS detection when front-wheel does not filter out the peak value for being greater than corresponding peak threshold, the SSS inspection of next round is executed 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 in specific implementation, it can be after each synchronic group detects cell, then detect each synchronization Other cells in group, can also detect the letter of other cells in the synchronic group after detecting the cell in a 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 not also sequentially be limited with serial process.
It should be noted that either detecting the information of other synchronic group cells, still detect in same synchronic group The information of other cells, the cell information that can will test out are put into cell list, in order to subsequent progress cell switching It is operated with gravity treatment etc..
As shown in the above, the detection method of adjacent cell described in the embodiment of the present invention, by that will be obtained in related operation In the peak value obtained, the corresponding peak value in the peak value section of synchronic group cells different from what is detected is shielded, and then can basis The information of not shielded other synchronic group cells of peak detection is examined further according to the cell information detected in same synchronic group Survey other cell informations in the same synchronic group, it is possible to reduce carry out the quantity of peak value when subsequent detection, reduce detection process In calculation amount, and the interference to subsequent detection can be reduced, reduce false detection rate.In addition, by first detecting different synchronic groups The information of cell, then other cell informations in same synchronic group are detected, it can be shortened with the detection time of flexible setting different community Entire detection process the time it takes.
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 figure 3, the user terminal 30 includes: to receive list the embodiment of the invention provides a kind of user terminal 30 Member 31, arithmetic element 32, first detection unit 33 and second detection unit 34.Wherein:
The receiving unit 31 is suitable for receiving the data comprising PSS that base station is sent.The arithmetic element 32 is suitable for institute The data and local PSS sequence received make related operation.The first detection unit 33 is suitable at the peak that related operation obtains In value, 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 detects the information of other synchronic group cells, wherein each synchronic group corresponds to different peak value sections.The second detection unit 34 are suitable for detecting other cell informations in the same synchronic group according to the cell information detected in same synchronic group.
In specific implementation, as shown in figure 4, the first detection unit 33 includes: the first screening subelement 41 and first Detection sub-unit 42.Wherein, the first screening subelement 41 is suitable for screening the not shielded peak value.Described One detection sub-unit 42 is suitable for carrying out SSS detection to the peak value filtered out.
In specific implementation, the first screening subelement 41 includes: the first selection module 411 and the first screening module 412.Wherein, described first module 411 is chosen suitable for choosing each preset time point d_ from the peak value that the related operation obtains The corresponding peak value d_pss (i) of time_pss (i), wherein i indicates i-th of time point, and i≤N, i are positive integer, when N is default Between the sum put.First screening module 412 is suitable for the corresponding peak of each preset time point d_time_pss (i) that will be selected Value d_pss (i) peak threshold d_thresld_pss (i) corresponding with the preset time point d_time_pss (i) carries out respectively Compare, filters out the peak value of d_pss (i) > d_thresld_pss (i).
In specific implementation, first detection sub-unit 42 includes: the first data cutout module 421, and second chooses mould Block 422, the second screening module 423 and acquisition module 424.Wherein, the data cutout module 421 is suitable for working as d_pss (i) > It include the data of SSS according to the d_pss (i) interception when d_thresld_pss (i).The second selection module 422 is suitable for The data intercepted and local SSS sequence are made into related operation, and from the peak value that related operation obtains, choose each preset time The corresponding peak value d_sss (j) of point d_time_sss (j), wherein j indicates j-th of preset time point, and j≤M, j are positive integer, M For the sum of preset time point.Second screening module 423 is suitable for each preset time point d_time_sss (j) that will be selected Corresponding peak value d_sss (j) peak threshold d_thresld_sss (i) corresponding with the preset time point d_time_sss (j) It is compared respectively.The acquisition module 424 is suitable for as d_sss (i) > d_thresld_sss (i), according to the d_sss (i) information of respective cell in k-th of synchronic group is obtained.
In specific implementation, as shown in figure 5, the second detection unit 34 includes: except interference subelement 51, data cutout Subelement 52, operation subelement 53 and the second detection sub-unit 54.Wherein, described except interference subelement 51 is suitable for according to kth The information of the cell detected in a synchronic group executes except interference operation k-th of synchronic group, and k≤K, k is positive whole Number, K are the sum of synchronic group.The data cutout subelement 52 is suitable for respectively according to the peak except k-th of synchronic group after interference It is worth peak value in section, interception includes the data of PSS.The operation subelement 53 is suitable for respectively by the data intercepted and local PSS sequence makees related operation.Second detection sub-unit 54 is suitable for respectively according to described k-th of the result of related operation detection Other cell informations in synchronic group.
In specific implementation, second detection sub-unit 54 includes: third screening module 541 and the second detection module 542.Wherein, the peak value that the third screening module 541 is suitable for obtaining the related operation screens.Second detection Module 542 is suitable for carrying out SSS detection to the peak value filtered out.
In specific implementation, the third screening module 541 includes: the first selection submodule 5411 and the first detection submodule Block 5412.Wherein, the first selection submodule 5411 is suitable for from the peak value that the related operation obtains, when choosing each default Between the corresponding peak value d_pss (i) of point d_time_pss (i), wherein i indicate i-th of time point, i≤N, i are positive integer, and N is The sum of preset time point.First detection sub-module 5412 is suitable for each preset time point d_time_pss that will be selected (i) corresponding peak value d_pss (i) peak threshold d_thresld_pss corresponding with the preset time point d_time_pss (i) (i) it is compared respectively, filters out the peak value of d_pss (i) > d_thresld_pss (i).
In specific implementation, second detection module 542 includes: data cutout submodule 5421, operation submodule 5422, second chooses submodule 5423, the second detection sub-module 5424 and acquisition submodule 5425.Wherein, the data cutout Submodule 5421 is suitable for as d_pss (i) > d_thresld_pss (i), includes the number of SSS according to the d_pss (i) interception According to.The operation submodule 5422 is suitable for the data intercepted and local SSS sequence making related operation.Described second chooses son Module 5423 is suitable for from the peak value that related operation obtains, and chooses the corresponding peak value d_ of each preset time point d_time_sss (j) Sss (j), wherein j indicates that j-th of preset time point, j≤M, j are positive integer, and M is the sum of preset time point.Described second Detection sub-module 5424 be suitable for will the corresponding peak value d_sss (j) of each preset time point d_time_sss (j) that select with it is described The corresponding peak threshold d_thresld_sss (j) of preset time point d_time_sss (j) is compared respectively.Acquisition Module 5425 is suitable for as d_sss (j) > d_thresld_sss (j), obtains k-th of synchronization according to the d_sss (j) The information of respective cell in group.
It should be noted that in specific implementation, the first detection unit 33 and second detection unit 34 can be according to Signal is by other cell informations in the strong information to other synchronic group cells of weak sequence detection or same synchronic group.
As shown in fig. 6, the user terminal 60 includes: to receive list the embodiment of the invention provides a kind of user terminal 60 Member 61, arithmetic element 62 and first detection unit 63.Wherein:
The receiving unit 61 is suitable for receiving the data comprising PSS that base station is sent.The arithmetic element 62 is suitable for institute The data and local PSS sequence received make related operation.The first detection unit 63 is suitable at the peak that related operation obtains In value, 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 detects the information of other synchronic group cells, wherein each synchronic group corresponds to different peak value sections.The second detection unit 64, suitable for the corresponding off peak peak value screen of k-th of synchronic group cell to be detected will be removed in the peak value that related operation obtains Cover, and in k-th of synchronic group according to not shielded peak detection other cells information, wherein each synchronic group pair Different peak value sections is answered, k≤K, k are positive integer, and K is the sum of synchronic group.
In specific implementation, the first detection unit 63 may include: the second screening subelement 631 and the second detection Subelement 632, wherein the second screening subelement 631 is suitable for the not shielded peak value and corresponding peak value respectively Threshold value is compared, and filters out the peak value for being greater than corresponding peak threshold in the not shielded peak value, second detection Subelement 632 is suitable for carrying out secondary synchronization signal SSS detection according to the peak value greater than corresponding peak threshold filtered out, obtains it The information of his synchronic group cell.
In specific implementation, the user terminal 60 can also include: first control unit 65, be suitable for not from the phase When filtering out the peak value for being greater than corresponding peak threshold in the peak value that pass operation obtains, the receiving unit 61, arithmetic element are controlled 62 and first screening subelement 631 execute next round PSS detection.
In specific implementation, second detection sub-unit 632 may include: the second data cutout module 6321, and first Computing module 6322, third screening module 6323 and first detection module 6324.Wherein: the second data cutout module 6321 data of the peak value interception comprising SSS greater than corresponding peak threshold for being suitable for filtering out according to, first fortune It calculates module 6322 to be suitable for the data intercepted and local SSS sequence making related operation, the third screening module 6323 is suitable for From the peak value that related operation obtains, the peak value for being greater than corresponding peak threshold is filtered out, the first detection module 6324 is suitable for The information of other corresponding synchronic group cells is obtained according to the peak value filtered out.
In specific implementation, the user terminal 60 can also include: the second control unit 66, and being suitable for ought be from the phase When filtering out the peak value for being greater than corresponding peak threshold in the peak value that pass operation obtains, 632 weight of the second detection sub-unit is controlled The SSS detection of next round is executed again.
In specific implementation, the second detection unit 64 may include: third screening subelement 641 and third inspection Survey subelement 642.Wherein, third screening subelement 641 be suitable for by the result of the related operation respectively with corresponding peak Value threshold value is compared, and filters out the peak value greater than corresponding peak threshold, and the third detection sub-unit 642 is suitable for according to sieve The peak value greater than corresponding peak threshold selected carries out SSS detection, obtains the letter of other cells in k-th of synchronic group Breath.
In specific implementation, the user terminal 60 can also include: third control unit 67, and being suitable for ought be from the phase Close in the result of operation when filtering out the peak value greater than corresponding peak threshold, control the second detection unit 64 execute it is next The PSS of wheel is detected.
In specific implementation, the third detection sub-unit 642 may include: third data cutout module 6421, and second Computing module 6422, the 4th screening module 6423 and the second detection module 6424.Wherein, the third data cutout module 6421, the peak value interception greater than corresponding peak threshold suitable for filtering out according to includes the data of SSS；Second fortune Module 6422 is calculated, suitable for the data intercepted and local SSS sequence are made related operation；4th screening module 6423 is fitted It is greater than the peak value for corresponding to peak threshold in filtering out from the peak value that related operation obtains；Second detection module 6424 is fitted In the information for obtaining other cells in k-th of synchronic group according to the peak value filtered out.
In specific implementation, the user terminal 60 can also include: the 4th control unit 68, and being suitable for ought be from the phase When filtering out the peak value for being greater than corresponding peak threshold in the peak value that pass operation obtains, controls the third detection sub-unit 642 and hold The SSS of row next round is detected.
In specific implementation, according to signal, by strong extremely weak sequence detection, other synchronize group of mean peoples to the first detection unit 63 The information in area.The second detection unit 64 is according to signal by strong to other cells letter in the weak same synchronic group of sequence detection Breath.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone 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 range of restriction.

Claims (26)

1. a kind of detection method of user terminal adjacent cell characterized by comprising
Receive the data comprising primary synchronization signal PSS that base station is sent；
Received data and local PSS sequence are made into related operation；
In the peak value that related operation obtains, by the corresponding peak value screen in peak value section of synchronic group cells different from what is detected It covers, and according to the information of not shielded other synchronic group cells of peak detection, wherein each synchronic group corresponds to different peak values Section；
Other cell informations in the same synchronic group are detected according to the cell information detected in same synchronic group, comprising: According to the information of the cell detected in k-th of synchronic group, k-th of synchronic group is executed except interference operation, according to removing Other cell informations in same synchronic group described in peak detection in the peak value section of k-th of synchronic group after interference.
2. the detection method of user terminal adjacent cell as described in claim 1, which is characterized in that the basis is not shielded The information of other synchronic group cells of peak detection, comprising:
The not shielded peak value is screened；
Secondary synchronization signal SSS detection is carried out according to the peak value filtered out.
3. the detection method of user terminal adjacent cell as claimed in claim 2, which is characterized in that described not shielded to described Peak value screened, comprising:
From the peak value that the related operation obtains, the corresponding peak value d_pss of each preset time point d_time_pss (i) is chosen (i), wherein i indicates i-th of time point, and i≤N, i are positive integer, and N is the sum of preset time point；
By the corresponding peak value d_pss (i) of each preset time point d_time_pss (i) selected and the preset time point d_ The corresponding peak threshold d_thresld_pss (i) of time_pss (i) is compared respectively, filters out d_pss (i) > d_ The peak value of thresld_pss (i).
4. the detection method of user terminal adjacent cell as claimed in claim 3, which is characterized in that the peak that the basis filters out Value carries out secondary synchronization signal SSS detection, comprising:
It include the data of SSS according to the d_pss (i) interception as d_pss (i) > d_thresld_pss (i)；
The data intercepted and local SSS sequence are made into related operation, and from the peak value that related operation obtains, chosen each default The corresponding peak value d_sss (j) of time point d_time_sss (j), wherein j indicates j-th of preset time point, and j≤M, j are positive whole Number, M are the sum of preset time point；
By the corresponding peak value d_sss (j) of each preset time point d_time_sss (j) selected and the preset time point d_ The corresponding peak threshold d_thresld_sss (j) of time_sss (j) is compared respectively；
As d_sss (i) > d_thresld_sss (i), other corresponding synchronic group cells are obtained according to the d_sss (i) Information.
5. the detection method of user terminal adjacent cell as described in claim 1, which is characterized in that described according to same synchronic group In the cell information that has detected detect other cell informations in the same synchronic group, comprising:
According to the information of the cell detected in k-th of synchronic group, k-th of synchronic group is executed except interference operates, k≤ K, k are positive integer, and K is the sum of synchronic group；
Respectively according to the peak value in the peak value section except k-th of synchronic group after interference, interception includes the data of PSS；
The data intercepted and local PSS sequence are made into related operation respectively；
Other cell informations in k-th of synchronic group are detected according to the result of related operation respectively.
6. the detection method of user terminal adjacent cell as claimed in claim 5, which is characterized in that described according to related operation As a result other cell informations in k-th of synchronic group are detected, comprising:
The peak value obtained to the related operation screens；
SSS detection is carried out to the peak value filtered out.
7. the detection method of user terminal adjacent cell as claimed in claim 6, which is characterized in that described to the related operation The peak value of acquisition is screened, comprising:
From the peak value that the related operation obtains, the corresponding peak value d_pss of each preset time point d_time_pss (i) is chosen (i), wherein i indicates i-th of time point, and i≤N, i are positive integer, and N is the sum of preset time point；
By the corresponding peak value d_pss (i) of each preset time point d_time_pss (i) selected and the preset time point d_ The corresponding peak threshold d_thresld_pss (i) of time_pss (i) is compared respectively, filters out d_pss (i) > d_ The peak value of thresld_pss (i).
8. the detection method of user terminal adjacent cell as claimed in claim 7, which is characterized in that the described pair of peak value filtered out Carry out SSS detection, comprising:
It include the data of SSS according to the d_pss (i) interception as d_pss (i) > d_thresld_pss (i)；
The data intercepted and local SSS sequence are made into related operation；
From the peak value that related operation obtains, the corresponding peak value d_sss (j) of each preset time point d_time_sss (j) is chosen, In, j indicates that j-th of preset time point, j≤M, j are positive integer, and M is the sum of preset time point；
By the corresponding peak value d_sss (j) of each preset time point d_time_sss (j) selected and the preset time point d_ The corresponding peak threshold d_thresld_sss (j) of time_sss (j) is compared respectively；
As d_sss (j) > d_thresld_sss (j), obtained according to the d_sss (j) corresponding in k-th of synchronic group The information of cell.
9. the detection method of user terminal adjacent cell as described in claim 1, 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.
10. the detection method of user terminal adjacent cell as described in claim 1, which is characterized in that the basis is not shielded Peak detection other synchronic group cells information, comprising:
The not shielded peak value is compared with corresponding peak threshold respectively, filters out the not shielded peak value In be greater than corresponding peak threshold peak value；
Secondary synchronization signal SSS detection is carried out according to the peak value greater than corresponding peak threshold filtered out, obtains other synchronic groups The information of cell.
11. the detection method of user terminal adjacent cell as claimed in claim 10, which is characterized in that when not shielded from described When filtering out the peak value for being greater than corresponding peak threshold in the peak value covered, further includes: execute the PSS detection of next round.
12. the detection method of user terminal adjacent cell as described in claim 10 or 11, which is characterized in that described according to screening Peak value out carries out SSS detection, comprising:
It include the data of SSS according to the peak value interception greater than corresponding peak threshold filtered out；
The data intercepted and local SSS sequence are made into related operation；
From the peak value that related operation obtains, the peak value for being greater than corresponding peak threshold is filtered out；
The information of other corresponding synchronic group cells is obtained according to the peak value filtered out.
13. the detection method of user terminal adjacent cell as claimed in claim 12, which is characterized in that when not from the related fortune When filtering out the peak value for being greater than corresponding peak threshold in the peak value that calculation obtains, further includes: execute the SSS detection of next round.
14. a kind of user terminal characterized by comprising
Receiving unit, the data comprising PSS sent suitable for receiving base station；
Arithmetic element, suitable for received data and local PSS sequence are made related operation；
First detection unit, suitable in the peak value that related operation obtains, by the peak of synchronic group cells different from what is detected It is worth the corresponding peak value shielding in section, and according to the information of not shielded other synchronic group cells of peak detection, wherein Mei Getong Step group corresponds to different peak value sections；
Second detection unit, suitable for detecting its in the same synchronic group according to the cell information detected in same synchronic group His cell information, comprising: according to the information of the cell detected in k-th of synchronic group, k-th of synchronic group execution is removed Interference operation, according to other in same synchronic group described in the peak detection in the peak value section except k-th of synchronic group after interference Cell information.
15. user terminal as claimed in claim 14, which is characterized in that the first detection unit includes:
First screening subelement, suitable for being screened to the not shielded peak value；
First detection sub-unit, suitable for carrying out SSS detection to the peak value filtered out.
16. user terminal as claimed in claim 15, which is characterized in that described first, which screens subelement, includes:
First chooses module, suitable for from the peak value that the related operation obtains, choosing each preset time point d_time_pss (i) Corresponding peak value d_pss (i), wherein i indicates i-th of time point, and i≤N, i are positive integer, and N is the sum of preset time point；
First screening module, 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).
17. user terminal as claimed in claim 16, which is characterized in that first detection sub-unit includes:
First data cutout module is suitable for as d_pss (i) > d_thresld_pss (i), is intercepted according to the d_pss (i) Data comprising SSS；
Second chooses module, suitable for the data intercepted and local SSS sequence are made related operation, and obtained from related operation In peak value, choose the corresponding peak value d_sss (j) of each preset time point d_time_sss (j), wherein j indicate j-th it is default when Between point, j≤M, j are positive integer, and M is the sum of preset time point；
Second screening module, suitable for the corresponding peak value d_sss (j) of each preset time point d_time_sss (j) that will select with The corresponding peak threshold d_thresld_sss (i) of the preset time point d_time_sss (j) is compared respectively；
Obtain module, be suitable for as d_sss (i) > d_thresld_sss (i), according to the d_sss (i) obtain accordingly its The information of his synchronic group cell.
18. user terminal as claimed in claim 14, which is characterized in that the second detection unit includes:
Except interference subelement, suitable for the information according to the cell detected in k-th of synchronic group, to k-th of synchronic group It executes except interference operation, k≤K, k are positive integer, and K is the sum of synchronic group；
Data cutout subelement, suitable for including according to peak value, interception in the peak value section except k-th of synchronic group after interference respectively The data of PSS；
Operation subelement, suitable for the data intercepted and local PSS sequence are made related operation respectively；
Second detection sub-unit is believed suitable for detecting other cells in k-th of synchronic group according to the result of related operation respectively Breath.
19. user terminal as claimed in claim 18, which is characterized in that second detection sub-unit, comprising:
Third screening module, the peak value suitable for obtaining to the related operation screen；
Second detection module, suitable for carrying out SSS detection to the peak value filtered out.
20. user terminal as claimed in claim 19, which is characterized in that the third screening module includes:
First chooses submodule, suitable for from the peak value that the related operation obtains, choosing each preset time point d_time_pss (i) corresponding peak value d_pss (i), wherein i indicates i-th of time point, and i≤N, i are positive integer, and N is the total of preset time point Number；
First detection sub-module, suitable for the corresponding peak value d_pss (i) of each preset time point d_time_pss (i) that will be selected Peak threshold d_thresld_pss (i) corresponding with the preset time point d_time_pss (i) is compared respectively, screening The peak value of d_pss (i) > d_thresld_pss (i) out.
21. user terminal as claimed in claim 20, which is characterized in that second detection module, comprising:
Data cutout submodule is suitable for as d_pss (i) > d_thresld_pss (i), is intercepted and is wrapped according to the d_pss (i) Data containing SSS；
Operation submodule, suitable for the data intercepted and local SSS sequence are made related operation；
Second chooses submodule, right suitable for from the peak value that related operation obtains, choosing each preset time point d_time_sss (j) The peak value d_sss (j) answered, wherein j indicates that j-th of preset time point, j≤M, j are positive integer, and M is the total of preset time point Number；
Second detection sub-module, suitable for the corresponding peak value d_sss (j) of each preset time point d_time_sss (j) that will be selected Peak threshold d_thresld_sss (j) corresponding with the preset time point d_time_sss (j) is compared respectively；
Acquisition submodule is suitable for as d_sss (j) > d_thresld_sss (j), obtains the kth according to the d_sss (j) The information of respective cell in a synchronic group.
22. user terminal as claimed in claim 14, which is characterized in that the first detection unit, according to signal by by force extremely The information of other synchronic group cells of weak sequence detection；The second detection unit is according to signal by strong same to weak sequence detection Other cell informations in one synchronic group.
23. user terminal as claimed in claim 14, which is characterized in that the first detection unit includes:
Second screening subelement is screened suitable for being respectively compared the not shielded peak value with corresponding peak threshold It is greater than the peak value of corresponding peak threshold in the not shielded peak value out；
Second detection sub-unit, suitable for carrying out secondary synchronization signal SSS according to the peak value greater than corresponding peak threshold filtered out Detection, obtains the information of other synchronic group cells.
24. user terminal as claimed in claim 23, which is characterized in that further include: first control unit is suitable for not from institute It states when filtering out the peak value for being greater than corresponding peak threshold in the peak value of related operation acquisition, controls the receiving unit, operation list Member and the first screening subelement execute the PSS detection of next round.
25. the user terminal as described in claim 23 or 24, which is characterized in that second detection sub-unit includes:
Second data cutout module, the peak value interception greater than corresponding peak threshold suitable for filtering out according to include SSS Data；
First computing module, suitable for the data intercepted and local SSS sequence are made related operation；
Third screening module, suitable for from the peak value that related operation obtains, filtering out the peak value for being greater than corresponding peak threshold；
First detection module, suitable for obtaining the information of other corresponding synchronic group cells according to the peak value filtered out.
26. user terminal as claimed in claim 25, which is characterized in that further include: the second control unit, being suitable for ought be from institute It states when filtering out the peak value for being greater than corresponding peak threshold in the peak value of related operation acquisition, controls the second detection sub-unit weight The SSS detection of next round is executed again.
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Publication number Priority date Publication date Assignee Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101682361A (en) * 2007-05-25 2010-03-24 高通股份有限公司 Scrambling methods for synchronization channels
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
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
CN104735750A (en) * 2013-12-20 2015-06-24 联芯科技有限公司 Cell searching method and terminal

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100969780B1 (en) * 2003-10-31 2010-07-13 삼성전자주식회사 Apparatus and method for transmitting/receiving pilot signal in an orthogonal frequency division multiplexing communication system
JP4463780B2 (en) * 2005-06-14 2010-05-19 株式会社エヌ・ティ・ティ・ドコモ Transmitting apparatus and transmitting method
CN101719889B (en) * 2009-11-25 2012-07-11 意法·爱立信半导体（北京）有限公司 Method and device for detecting main synchronizing signal
CN102148785B (en) * 2010-02-05 2014-03-12 中兴通讯股份有限公司 Methods and devices for detecting main synchronous signal and generating sequence in LTE (Long Term Evolution) system
KR101443191B1 (en) * 2010-11-17 2014-09-25 한국전자통신연구원 Cell searcher of mobile terminal and neighbor cell searching method thereof
CN102857996B (en) * 2011-06-28 2015-03-18 普天信息技术研究院有限公司 Cell search timing synchronization method
CN103037434A (en) * 2011-09-29 2013-04-10 重庆重邮信科通信技术有限公司 Method and device for reporting community global situation identification number
CN102769904B (en) * 2012-04-26 2015-05-06 重庆重邮信科通信技术有限公司 Method and device for capturing terminal main synchronization signals in LTE (long term evolution) system
CN103546191B (en) * 2013-11-01 2015-10-07 东南大学 Universe covers the main synchronizing sequence Interference Cancellation detection method of multi-beam S-LTE
CN104378764B (en) * 2014-09-17 2018-04-27 北京北方烽火科技有限公司 A kind of LTE system co-frequency cell detection method and device
CN106817714B (en) * 2015-11-30 2019-07-02 北京展讯高科通信技术有限公司 The detection method of user terminal and its adjacent cell

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101682361A (en) * 2007-05-25 2010-03-24 高通股份有限公司 Scrambling methods for synchronization channels
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
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
CN104735750A (en) * 2013-12-20 2015-06-24 联芯科技有限公司 Cell searching method and terminal

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