CN103906182A - Method and system for searching for cells with pipeline combination - Google Patents
Method and system for searching for cells with pipeline combination Download PDFInfo
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- CN103906182A CN103906182A CN201210587817.4A CN201210587817A CN103906182A CN 103906182 A CN103906182 A CN 103906182A CN 201210587817 A CN201210587817 A CN 201210587817A CN 103906182 A CN103906182 A CN 103906182A
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Abstract
The invention provides a method and system for searching for cells with pipeline combination. The method includes the steps that elements of a first primary scrambling code counter set and elements of a first power value set are compared with a preset threshold to determine whether a proper cell is found out; an output result of each primary/secondary synchronization process is increased from a certain effective value to an effective set, a detection range is increased, detection time is shortened, besides, a primary scrambling code detection process is achieved through a method combining primary scrambling code counter thresholds and power value thresholds, and the probability of missing detection is lowered. Moreover, when each process is repeated, results of the same position in a previous position set need to be combined and updated, and accordingly detection accuracy is improved. Besides, the maximum execution times of each process are set, invalid frequency point detection is skipped in time, and accordingly detection resources are saved.
Description
Technical field
The present invention relates to communication technical field, the method and system of the Cell searching that particularly a kind of flowing water merges.
Background technology
At Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA) in the Cell searching technology in system, WCDMA system need to realize and the synchronizeing of base station by three step Cell searchings: the first step (Stage1) realizes slot synchronization, assisted by primary synchronization channel (P-SCH), determined the time slot head that receives signal; Second step (Stage2) achieve frame is synchronous, has been assisted by auxiliary synchronization channel (S-SCH), determines and receives the frame head of signal and the scrambler group number at the main scrambler place that community is used; It is synchronous that the 3rd step (Stage3) realizes pilot tone, assisted by primary pilot channel (P-CPICH), determines the main scrambling code number of community; Finally read the system message of community by Primary Common Control Physical Channel (P-CCPCH) channel.
As shown in Figure 1, above-mentioned three steps are to be mutually related, and previous is the condition of latter, while realization, can adopt flowing structure.Current flowing structure specific implementation step is as follows:
Stage1 utilizes the correlation of PSC code at N
tindividual time slot carries out main synchronizing process, exports a time slot head and give Stage2 when end; Then continue with N
tindividual time slot is the cycle to repeat main synchronizing process;
Stage2, according to the time slot head of Stage1 output, utilizes the correlation of SSC code at N
tindividual time slot carries out auxiliary synchronizing process, and when end, output receives frame head and the corresponding main scrambler group number of data; Then continue with N
tindividual time slot is the cycle to repeat auxiliary synchronizing process;
Stage3, according to frame head and the main scrambler group number of Stage2 output, utilizes the correlation of CPICH at N
tindividual time slot carries out main scrambler testing process; If there is the value that exceedes default thresholding in 8 main scrambler counters, think that Cell searching finishes, otherwise continue with N
tindividual time slot is to repeat main scrambler testing process the cycle.
For flowing structure, each process is all used fixing N
tindividual time slot, each process finishes that the testing result of this process is input to next process and synchronously carries out; Suppose that Stage3 has carried out K
3inferior, the total time of Cell searching is so: T=(K
3+ 2) N
tt
slot
Wherein, T
slotfor the time slot duration.Obviously,, in the time that channel circumstance is reasonable, flowing structure can obviously shorten the time of Cell searching.But there are following four shortcomings in current flowing structure:
1, each process N
tindividual time slot is only exported a result, if this result is insincere, follow-up all results are all insincere, thereby wasted detection time and resource;
2, the fixing N that uses of each process
tindividual time slot, when channel circumstance is poor, because this time is too short, the testing result obtaining is insincere, causes the time that Cell searching need to be longer, even failed;
3, this structure only by main scrambler counter and default thresholding relatively judge whether to finish Cell searching, can increase undetected probability;
4, this structure is when channel circumstance is poor, and the unlimited flowing water that carries out, may spend longer time and resource but or detect unsuccessfully.
Summary of the invention
Flowing structure detection time of current Cell searching is long, testing result confidence level is poor, false dismissal probability is larger and the problem of the wasting of resources of invalid frequency to solve for the method and system that the object of the present invention is to provide the Cell searching that a kind of flowing water merges.
For solving the problems of the technologies described above, the invention provides:
A method for the Cell searching that flowing water merges, described method adopts flowing structure, comprising:
Step 1: utilize the correlation of Primary Synchronisation Code at N
tindividual time slot carries out main synchronizing process to obtain the position collection of the first slot synchronization, and with N
tindividual time slot is the cycle to repeat main synchronizing process, wherein, and N
tfor natural number;
Step 2: according to the position collection of the first slot synchronization, utilize the correlation of secondary synchronization code at N
tindividual time slot carries out the first main scrambler group number collection that auxiliary synchronizing process is answered to obtain the initial position collection of the first frame and the initial position set pair of described the first frame, and with N
tindividual time slot is the cycle to repeat auxiliary synchronizing process, wherein, and N
tfor natural number;
Step 3: according to the initial position collection of the first frame and the first main scrambler group number collection, utilize the correlation of Common Pilot Channel at N
tindividual time slot carries out main scrambler testing process, obtains the first main scrambler counter set and the first performance number collection in each frame start position, and with N
tindividual time slot is to repeat main scrambler testing process the cycle, wherein, and N
tfor natural number;
If arbitrary element that described the first main scrambler counter set and the first performance number are concentrated is greater than default thresholding, Cell searching finishes;
If described the first main scrambler counter set and the concentrated element of the first performance number are all less than default thresholding, first of identical frame start position the main scrambler counter set and the first performance number collection are upgraded, obtain the main scrambler counter set of N and N performance number collection, if the main scrambler counter set of described N and the concentrated element of N performance number are all less than default thresholding, repeat to upgrade, if arbitrary element that the main scrambler counter set of described N and N performance number are concentrated is greater than default thresholding, Cell searching finishes.
The method of the Cell searching optionally, merging at described flowing water comprises: repeating in main synchronizing process, the position collection of the N slot synchronization of obtaining carries out time slot merging according to the position collection of N-1 slot synchronization, upgrade the position collection of N slot synchronization, wherein, N is natural number, and N is greater than 2.
Optionally, the method for the Cell searching merging at described flowing water comprises: in the process of position collection of upgrading N slot synchronization, the concentrated element in position of described N slot synchronization sorts by performance number size, and wherein, N is natural number, and N is greater than 2.
Optionally, the method of the Cell searching merging at described flowing water comprises: in auxiliary synchronizing process, initial position collection and the main scrambler group number of the N collection of N frame obtaining carries out time slot merging according to the initial position collection of N-1 frame and the main scrambler group number of N-1 collection, upgrade the initial position collection of N frame and the main scrambler group number of N collection, wherein, N is natural number, and N is greater than 2.
Optionally, the method of the Cell searching merging at described flowing water comprises: in the process of the initial position collection of renewal N frame and the main scrambler group number of N collection, the element element corresponding sequence concentrated with the position of described N slot synchronization that the position collection that described N frame is initial and the main scrambler group number of N are concentrated, wherein, N is natural number, and N is greater than 2.
Meanwhile, the present invention also provides a kind of system of Cell searching of flowing water merging, and described system adopts flowing structure, comprising:
Primary Synchronisation Code module, for utilizing the correlation of Primary Synchronisation Code at N
tindividual time slot carries out main synchronizing process to obtain the position collection of the first slot synchronization, and with N
tindividual time slot is the cycle to repeat main synchronizing process, wherein, and N
tfor natural number;
Secondary synchronization code module, for according to Primary Synchronisation Code module, utilizes the correlation of secondary synchronization code at N
tindividual time slot carries out the first main scrambler group number collection that auxiliary synchronizing process is answered to obtain the initial position collection of the first frame and the initial position set pair of described the first frame, and with N
tindividual time slot is the cycle to repeat auxiliary synchronizing process, wherein, and N
tfor natural number;
Main scrambler detection module, for according to secondary synchronization code module, utilizes the correlation of Common Pilot Channel at N
tindividual time slot carries out main scrambler testing process, obtains the first main scrambler counter set and the first performance number collection in each frame start position, and with N
tindividual time slot is to repeat main scrambler testing process the cycle, wherein, and N
tfor natural number;
Judgement and update module, if be greater than default thresholding for described the first main scrambler counter set and the concentrated arbitrary element of the first performance number, Cell searching finishes; If described the first main scrambler counter set and the concentrated element of the first performance number are all less than default thresholding, first of identical frame start position the main scrambler counter set and the first performance number collection are upgraded, obtain the main scrambler counter set of N and N performance number collection, if the main scrambler counter set of described N and the concentrated element of N performance number are all less than default thresholding, repeat to upgrade, if arbitrary element that the main scrambler counter set of described N and N performance number are concentrated is greater than default thresholding, Cell searching finishes.
Optionally, in the system of the Cell searching merging at described flowing water, comprise in Primary Synchronisation Code module:
First merges module, carries out time slot merging for the position collection of the N slot synchronization obtained according to the position collection of N-1 slot synchronization;
The first update module, for upgrading the position collection of N slot synchronization, wherein, N is natural number, and N is greater than 2.
Optionally, in the system of the Cell searching merging at described flowing water, in Primary Synchronisation Code module, also comprise: the first order module, the concentrated element in position for described N slot synchronization sorts by performance number size, wherein, N is natural number, and N is greater than 2.
Optionally, in the system of the Cell searching merging at described flowing water, comprise in secondary synchronization code module:
Second merges module, carries out time slot merging for initial position collection and the main scrambler group number of the N collection of N frame obtaining according to the initial position collection of N-1 frame and the main scrambler group number of N-1 collection;
The second update module, for upgrading the initial position collection of N frame and the main scrambler group number of N collection, wherein, N is natural number, and N is greater than 2.
Optionally, in the system of the Cell searching merging at described flowing water, in secondary synchronization code module, also comprise: the second order module, for initial position collection and the concentrated element element corresponding sequence concentrated with the position of described N slot synchronization of the main scrambler group number of N of described N frame, wherein, N is natural number, and N is greater than 2.
The method and system of the Cell searching merging at a kind of flowing water provided by the invention, there is following beneficial effect: by the Output rusults of each primary/secondary synchronizing process is increased to an efficient set by some effective values, expand detection range, shorten detection time, and the method by main scrambler counter thresholding and the combination of performance number thresholding is carried out main scrambler testing process, has reduced undetected probability.
In addition, in the time that each process repeats, need to merge the result of upgrading the concentrated same position in a front position, improved the accuracy detecting, and by each process being arranged to the maximum number of times of carrying out, the detection of jumping out in time invalid frequency, has saved detection resource.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the flowing structure schematic diagram of the method for the Cell searching of prior art;
Fig. 2 is the flowing structure schematic diagram of the method for the Cell searching of flowing water merging of the present invention;
Fig. 3 is the schematic flow sheet of the method for the Cell searching of flowing water merging of the present invention;
Fig. 4 is the structural representation of the system of the Cell searching of flowing water merging of the present invention.
Embodiment
The method and system of the Cell searching that a kind of flowing water the present invention being proposed below in conjunction with the drawings and specific embodiments merges is described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts very the form of simplifying and all uses non-ratio accurately, only in order to convenient, the object of the aid illustration embodiment of the present invention lucidly.
Combination and the maximum technology such as number of times of carrying out that the present invention uses output detections set, merge testing result, main scrambler counter and two kinds of thresholdings of performance number have solved that flowing structure detection time of current Cell searching is long, testing result confidence level is poor, false dismissal probability is larger and the problem of the wasting of resources of invalid frequency.
In cell search process of the present invention, the concept that detects set is as follows respectively:
The position collection p of the slot synchronization of the n time main synchronizing process output
pSC, n, described p
pSC, nsize be N
pSC, preferred, described N
pSCsize is 3;
The initial position collection p of frame of the n time auxiliary synchronizing process output
sSC, nwith main scrambler group number collection g
n, described p
sSC, nand g
nsize be N
pSC* N
sSC, preferred N
sSCsize is 2;
Main scrambler testing process is exported main scrambling code number collection s and performance number collection
the size of described s is 8*N
pSC* N
sSCin individual element, exceed the number of times of default main scrambler counter thresholding, described in
size be 8*N
pSC* N
sSCin individual element, exceed the number of times of pre-designed performance number thresholding;
Wherein, the element of the position collection of the slot synchronization of main synchronizing process output sorts by performance number size, the element of auxiliary synchronizing process output is corresponding with it, and the concentrated element of main scrambling code number that main scrambler detects output is also to arrange according to the descending order of main synchronizing process performance number.
Please refer to Fig. 2, it is the flowing structure schematic diagram of the method for the Cell searching of flowing water merging of the present invention.
Please refer to Fig. 3, it is the schematic flow sheet of the method for the Cell searching of flowing water merging of the present invention.
As shown in Figures 2 and 3, the method for the Cell searching that a kind of flowing water merges, described method adopts flowing structure, comprising:
Step 1: utilize the correlation of Primary Synchronisation Code at N
tindividual time slot carries out main synchronizing process to obtain the position collection p of the first slot synchronization
pSC, 0, and with N
tindividual time slot is the cycle to repeat main synchronizing process, wherein, and N
tfor natural number; Preferably, N
tget 15.
In order to improve judgement accuracy, repeating in main synchronizing process, the position collection p of the N slot synchronization of obtaining
pSC, ncarry out N according to the position collection of N-1 slot synchronization
tindividual time slot merges, and upgrades the position collection p of N slot synchronization
pSC, n, and carry out slot synchronization position judgment, and the concentrated element in the position of N slot synchronization sorts by performance number size, and wherein N is natural number, and N is greater than 2.
When main synchronizing process repeats after nine times, stop main synchronizing process and export the position collection of the 9th slot synchronization.To repeating main synchronizing process, the maximum number of times of carrying out is set, the detection of jumping out in time invalid frequency, has saved detection resource.
Step 2: according to the position collection p of the first slot synchronization
pSC, 0, utilize the correlation of secondary synchronization code at N
tindividual time slot carries out auxiliary synchronizing process to obtain the initial position collection p of the first frame
sSC, 0the position collection p initial with described the first frame
sSC, 0the first corresponding main scrambler group number collection g
0(special, the corresponding multiple main scrambler group numbers of each time slot original position possibility and frame timing position), and repeat auxiliary synchronizing process taking Nt time slot as the cycle, wherein, N
tfor natural number; Preferably, N
tget 15.
In order to improve judgement accuracy, in auxiliary synchronizing process, the initial position collection p of N frame obtaining
sSC, nthe position collection p initial with described N frame
sSC, nthe corresponding main scrambler group number of N collection g
nthe main scrambler group number of the N-1 collection of answering according to the initial position collection of N-1 frame and the initial position set pair of described N-1 frame carries out N
tindividual time slot merges, and upgrades the initial position collection p of N frame
sSC, nthe position collection p initial with described N frame
sSC, nthe corresponding main scrambler group number of N collection g
n, and the concentrated element element corresponding sequence concentrated with the position of described N slot synchronization of N scrambler group number that position collection initial described N frame and the initial position set pair of described N frame are answered, wherein, N is natural number, and N is greater than 2.
When auxiliary synchronizing process repeats after 5 times, stop the 5th main scrambler group number collection that the initial position collection of auxiliary synchronizing process output renewal the 5th frame and the initial position set pair of described the 5th frame are answered.Auxiliary synchronizing process is arranged to the maximum number of times of carrying out, and the detection of jumping out in time invalid frequency, has saved detection resource.
Step 3: the position collection p initial according to the first frame
sSC, 0with the first scrambler group number collection g
0, utilize the correlation of Common Pilot Channel at N
tindividual time slot carries out main scrambler testing process, at N
tin individual time slot, each frame start position obtains 8 the first main scrambler counter set γ
0with the first performance number collection
and with N
tindividual time slot is to repeat main scrambler testing process the cycle, wherein, and N
tfor natural number;
If described the first main scrambler counter set γ
0with the first performance number collection
in arbitrary element be greater than default thresholding λ
scramb, 0, Cell searching finishes, and output the first main scrambler counter is greater than thresholding λ
scramb, 0corresponding main scrambling code number collection s and the first performance number are greater than thresholding
corresponding community.Wherein, β
scrambbe the performance number judging threshold (preferred, described threshold value gets 1/8) of main scrambler testing process,
for γ
0the performance number corresponding to main scrambler of middle number of times maximum.
If described the first main scrambler counter set γ
0with the first performance number collection
in element be all less than default thresholding λ
scramb, 0, to first of identical frame start position the main scrambler counter set γ
0with the first performance number collection
upgrade, obtain the main scrambler counter set of N γ
nwith N performance number collection
if the main scrambler counter set of described N and the concentrated element of N performance number are all less than default thresholding λ
scramb, n, repeat this step, if arbitrary element that the main scrambler counter set of described N and N performance number are concentrated is greater than default thresholding, Cell searching finishes, the main scrambler counter of output N is greater than thresholding λ
scramb, ncorresponding main scrambling code number collection s and N performance number are greater than thresholding
corresponding community.Wherein, λ
scramb, nvalue and to merge the relation of update times as shown in table 1:
| n | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| λ scramb,n | 38 | 64 | 89 | 113 | 137 | 160 | 182 | 204 | 227 | 248 | 270 |
Table 1
When main scrambler testing process repeats, after 11 times, to stop main scrambler testing process, finish Cell searching.Illustrate that this time search does not also detect community, think that this frequency is invalid, again carry out this fluvial processes at next frequency.
Please refer to Fig. 4, it is the structural representation of the system of Cell searching of the present invention.As shown in Figure 4, the system of the Cell searching that a kind of flowing water merges, described system adopts flowing structure, comprising:
Primary Synchronisation Code module 41, for utilizing the correlation of Primary Synchronisation Code at N
tindividual time slot carries out main synchronizing process to obtain the position collection of the first slot synchronization, and with N
tindividual time slot is the cycle to repeat main synchronizing process, wherein, and N
tfor natural number;
Concrete, described Primary Synchronisation Code module 41 comprises:
First merges module 51, carries out N for the position collection of the N slot synchronization obtained according to the position collection of N-1 slot synchronization
tindividual time slot merges;
The first update module 52, for upgrading the position collection of N slot synchronization;
The first order module 53, for carrying out slot synchronization position judgment, the concentrated element in the position of N slot synchronization sorts by performance number size, and wherein, N is natural number, and N is greater than 2;
The first output module 54, for repeating after nine times when main synchronizing process, stops main synchronizing process and exports the position collection of the 9th slot synchronization.
Secondary synchronization code module 42, for according to Primary Synchronisation Code module 41, utilizes the correlation of secondary synchronization code at N
tindividual time slot carries out the first main scrambler group number collection that auxiliary synchronizing process is answered to obtain the initial position collection of the first frame and the initial position set pair of described the first frame, and with N
tindividual time slot is the cycle to repeat auxiliary synchronizing process, wherein, and N
tfor natural number;
Concrete, secondary synchronization code module 42 comprises:
Second merges module 55, carries out time slot merging for initial position collection and the N scrambler group number collection of N frame obtaining according to the initial position collection of N-1 frame and the main scrambler group number of N-1 collection;
The second update module 56, for upgrading the initial position collection of N frame and the main scrambler group number of N collection;
The second order module 57, for by position collection initial described N frame and the concentrated element element corresponding sequence concentrated with the position of described N slot synchronization of the main scrambler group number of N, wherein, N is natural number, and N is greater than 2;
The second output module 58, for repeating after 5 times when auxiliary synchronizing process, stops the 5th main scrambler group number collection that the initial position collection of auxiliary synchronizing process output renewal the 5th frame and the initial position set pair of described the 5th frame are answered.
Main scrambler detection module 43, for according to secondary synchronization code module 42, utilizes the correlation of Common Pilot Channel at N
tindividual time slot carries out main scrambler testing process, obtains the first main scrambler counter set and the first performance number collection in each frame start position, and with N
tindividual time slot is to repeat main scrambler testing process the cycle, wherein, and N
tfor natural number;
Concrete, described main scrambler detection module 43 comprises:
The 3rd output module 59, after 11 times, stops main scrambler testing process for repeating when main scrambler testing process, finishes Cell searching.
Judgement and update module 44, if be greater than default thresholding for described the first main scrambler counter set and the concentrated arbitrary element of the first performance number, Cell searching finishes;
If described the first main scrambler counter set and the concentrated element of the first performance number are all less than default thresholding, first of identical frame start position the main scrambler counter set and the first performance number collection are upgraded, obtain the main scrambler counter set of N and N performance number collection, if the main scrambler counter set of described N and the concentrated element of N performance number are all less than default thresholding, repeat this step, if arbitrary element that the main scrambler counter set of described N and N performance number are concentrated is greater than default thresholding, Cell searching finishes.
According to the combination of said structure, by the Output rusults of each primary/secondary synchronizing process is increased to an efficient set by some effective values, expand detection range, shorten detection time, and the method by main scrambler counter thresholding and the combination of performance number thresholding is carried out main scrambler testing process, has reduced undetected probability.
In addition, in the time that each process repeats, need to merge the result of upgrading the concentrated same position in a front position, improved the accuracy detecting, and by each process being arranged to the maximum number of times of carrying out, the detection of jumping out in time invalid frequency, has saved detection resource.
Foregoing description is only the description to preferred embodiment of the present invention, the not any restriction to the scope of the invention, and any change, modification that the those of ordinary skill in field of the present invention does according to above-mentioned disclosure, all belong to the protection range of claims.
Claims (10)
1. a method for the Cell searching that flowing water merges, is characterized in that, described method adopts flowing structure, comprising:
Step 1: utilize the correlation of Primary Synchronisation Code at N
tindividual time slot carries out main synchronizing process to obtain the position collection of the first slot synchronization, and with N
tindividual time slot is the cycle to repeat main synchronizing process, wherein, and N
tfor natural number;
Step 2: according to the position collection of the first slot synchronization, utilize the correlation of secondary synchronization code at N
tindividual time slot carries out the first main scrambler group number collection that auxiliary synchronizing process is answered to obtain the initial position collection of the first frame and the initial position set pair of described the first frame, and with N
tindividual time slot is the cycle to repeat auxiliary synchronizing process, wherein, and N
tfor natural number;
Step 3: according to the initial position collection of the first frame and the first main scrambler group number collection, utilize the correlation of Common Pilot Channel at N
tindividual time slot carries out main scrambler testing process, obtains the first main scrambler counter set and the first performance number collection in each frame start position, and with N
tindividual time slot is to repeat main scrambler testing process the cycle, wherein, and N
tfor natural number;
If arbitrary element that described the first main scrambler counter set and the first performance number are concentrated is greater than default thresholding, Cell searching finishes;
If described the first main scrambler counter set and the concentrated element of the first performance number are all less than default thresholding, first of identical frame start position the main scrambler counter set and the first performance number collection are upgraded, obtain the main scrambler counter set of N and N performance number collection, if the main scrambler counter set of described N and the concentrated element of N performance number are all less than default thresholding, repeat to upgrade, if arbitrary element that the main scrambler counter set of described N and N performance number are concentrated is greater than default thresholding, Cell searching finishes.
2. the method for the Cell searching that flowing water according to claim 1 merges, it is characterized in that, comprise: repeating in main synchronizing process, the position collection of the N slot synchronization of obtaining carries out time slot merging according to the position collection of N-1 slot synchronization, upgrade the position collection of N slot synchronization, wherein, N is natural number, and N is greater than 2.
3. the method for the Cell searching that flowing water according to claim 2 merges, is characterized in that, comprising: in the process of position collection of upgrading N slot synchronization, the concentrated element in position of described N slot synchronization sorts by performance number size, wherein, N is natural number, and N is greater than 2.
4. the method for the Cell searching that flowing water according to claim 1 merges, it is characterized in that, comprise: in auxiliary synchronizing process, initial position collection and the main scrambler group number of the N collection of N frame obtaining carries out time slot merging according to the initial position collection of N-1 frame and the main scrambler group number of N-1 collection, upgrade the initial position collection of N frame and the main scrambler group number of N collection, wherein, N is natural number, and N is greater than 2.
5. the method for the Cell searching that flowing water according to claim 4 merges, it is characterized in that, comprise: in the process of the initial position collection of renewal N frame and the main scrambler group number of N collection, the element element corresponding sequence concentrated with the position of described N slot synchronization that the position collection that described N frame is initial and the main scrambler group number of N are concentrated, wherein, N is natural number, and N is greater than 2.
6. a system for the Cell searching that flowing water merges, is characterized in that, described system adopts flowing structure, comprising:
Primary Synchronisation Code module, for utilizing the correlation of Primary Synchronisation Code at N
tindividual time slot carries out main synchronizing process to obtain the position collection of the first slot synchronization, and with N
tindividual time slot is the cycle to repeat main synchronizing process, wherein, and N
tfor natural number;
Secondary synchronization code module, for according to Primary Synchronisation Code module, utilizes the correlation of secondary synchronization code at N
tindividual time slot carries out the first main scrambler group number collection that auxiliary synchronizing process is answered to obtain the initial position collection of the first frame and the initial position set pair of described the first frame, and with N
tindividual time slot is the cycle to repeat auxiliary synchronizing process, wherein, and N
tfor natural number;
Main scrambler detection module, for according to secondary synchronization code module, utilizes the correlation of Common Pilot Channel at N
tindividual time slot carries out main scrambler testing process, obtains the first main scrambler counter set and the first performance number collection in each frame start position, and with N
tindividual time slot is to repeat main scrambler testing process the cycle, wherein, and N
tfor natural number;
Judgement and update module, if be greater than default thresholding for described the first main scrambler counter set and the concentrated arbitrary element of the first performance number, Cell searching finishes; If described the first main scrambler counter set and the concentrated element of the first performance number are all less than default thresholding, first of identical frame start position the main scrambler counter set and the first performance number collection are upgraded, obtain the main scrambler counter set of N and N performance number collection, if the main scrambler counter set of described N and the concentrated element of N performance number are all less than default thresholding, repeat to upgrade, if arbitrary element that the main scrambler counter set of described N and N performance number are concentrated is greater than default thresholding, Cell searching finishes.
7. the system of the Cell searching that flowing water according to claim 6 merges, is characterized in that, comprises in Primary Synchronisation Code module:
First merges module, carries out time slot merging for the position collection of the N slot synchronization obtained according to the position collection of N-1 slot synchronization;
The first update module, for upgrading the position collection of N slot synchronization, wherein, N is natural number, and N is greater than 2.
8. the system of the Cell searching that flowing water according to claim 7 merges, is characterized in that, also comprises: the first order module in Primary Synchronisation Code module, the concentrated element in position for described N slot synchronization sorts by performance number size, wherein, N is natural number, and N is greater than 2.
9. the system of the Cell searching that flowing water according to claim 6 merges, is characterized in that, comprises in secondary synchronization code module:
Second merges module, carries out time slot merging for initial position collection and the main scrambler group number of the N collection of N frame obtaining according to the initial position collection of N-1 frame and the main scrambler group number of N-1 collection;
The second update module, for upgrading the initial position collection of N frame and the main scrambler group number of N collection, wherein, N is natural number, and N is greater than 2.
10. the system of the Cell searching that flowing water according to claim 9 merges, it is characterized in that, in secondary synchronization code module, also comprise: the second order module, for initial position collection and the concentrated element element corresponding sequence concentrated with the position of described N slot synchronization of the main scrambler group number of N of described N frame, wherein, N is natural number, and N is greater than 2.
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|---|---|---|---|
| CN201210587817.4A CN103906182B (en) | 2012-12-28 | 2012-12-28 | Method and system for searching for cells with pipeline combination |
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|---|---|---|---|
| CN201210587817.4A CN103906182B (en) | 2012-12-28 | 2012-12-28 | Method and system for searching for cells with pipeline combination |
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