CN106488485A - WCDMA terminal frame boundaries and the method and apparatus disturbing comma detector - Google Patents
WCDMA terminal frame boundaries and the method and apparatus disturbing comma detector Download PDFInfo
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- CN106488485A CN106488485A CN201510527207.9A CN201510527207A CN106488485A CN 106488485 A CN106488485 A CN 106488485A CN 201510527207 A CN201510527207 A CN 201510527207A CN 106488485 A CN106488485 A CN 106488485A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- H—ELECTRICITY
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- H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
- H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
- H04W56/007—Open loop measurement
- H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
- H04W56/0085—Open loop measurement based on arrival time vs. expected arrival time detecting a given structure in the signal
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Abstract
The present invention relates to a kind of terminal frame boundaries and the method and apparatus disturbing comma detector.The method comprises the following steps：Auxiliary synchronous code correlation value calculation is carried out to the multiple time slots receiving, obtains the auxiliary synchronous code of each time slot；Before all time slots receiving a frame, predict the scrambler group number of this frame using the syntagmatic of the auxiliary synchronous code of multiple time slots of reception, no matter the plurality of time slot is continuous slot or discontinuous time slot；And the border of this frame is determined according to the scrambler group number of prediction.
Description
Technical field
The present invention relates to the inspection of a kind of WCDMA terminal, especially WCDMA terminal frame boundaries and scrambler group
The method and apparatus surveyed.
Background technology
WCDMA (WCDMA, Wideband Code Division Multiple Access)
It is one of global the most widely used 3G standard.Cell searching is to realize terminal and base station in mobile communication
Between synchronous important physical layer process, synchronous with Target cell for realizing terminal, obtain Target cell master
Scrambler.Whether the main scrambler according to Target cell is it is known that cell searching is segmented into whole plot search and letter
The cell searching changed, the former does not know the main scrambler of Target cell, the main scrambler of the latter's known target cell.
The initial cell that whole plot search is carried out after being for example used for starting up of terminal selects, to receive Cell Broadcast CB
System message, then decide whether resident in this cell.Initial cell selection course is divided into whole plot
Search, acquisition system message and cell select 3 stages.Wherein whole plot search be divided into slot synchronization,
Frame synchronization and scrambler group (Scrambling Code Group) identification, main scrambler identify 3 steps, respectively
Related to P-SCH, S-SCH, P-CPICH physical channel.Frame synchronization and scrambler group (Scrambling Code
Group) identification needs to carry out frame boundaries and disturbs comma detector.
One radio frames 10ms of WCDMA include 15 time slots, and each time slot has 2560 chips,
System realizes down-going synchronous by synchronous channel SCH.In the context of the present invention, without especially saying
Bright, frame refers to radio frames.Primary synchronization channel (Primary Synchronization Channel) and auxiliary with
Step channel (Secondary Synchronization Channel) is transmitted in front 256 chips of a time slot,
As shown in Figure 1.
Secondary synchronization code SSC mono- has 16 kinds, regular distribution in 15 time slots of radio frames,
Every kind of distribution mode is a kind of pattern (pattern), defines altogether 64 kinds (being shown in Table 1).Every kind of pattern and
Scrambling code group number is one-to-one, so once it is determined that current scrambling code group number, having determined that target is little
The starting point of area's radio frames, realizes frame synchronization.Herein if no special instructions, frame refers to radio frames.
Frame boundary detection and disturb comma detector be related complete, so herein if no special instructions, both
Refer to same operation.
Table 1 SSC Pattern and scrambler group
The SSC data of 256 chip of each time slot of synchronous channel SCH and local 16 SSC code words
After associative operation, export corresponding 16 correlations.
Because directly related amount of calculation is very big, thus using FHT (Fast Hasmard Transform, soon
Fast Hadamard transform) to simplify calculating, first of Z code, input data sequence is made with the segmentation phase of 16 points of length
Close, then 4 butterfly computations that 16 accumulated values after segmentation are done with 16 points of FHT.
Known technology conducting frame border detection and when disturbing comma detector, is by continuous slot receiving data, often
Each time slot of individual cell take above 256chip data related to local SSC code word obtain 16 correlations to
Amount is deposited；After collecting continuous N frame (such as N=7) data, to 240 storage correlations, to scrambler group
It is cumulative that 64 groups of table carry out time slot traversal, the individual correlation descending sort of final 960 (64*15), obtains
Timeslot number corresponding to big correlation and block number are judging final frame boundaries and scrambler group number.
This known technology require time slot must be continuous receive, and after collecting the whole frame data of 15 time slots,
Just start frame boundaries and the detection of scrambler group number；For adapting to the scene of signal difference in addition it is also necessary to continuously receive multiframe (example
As 7 frames), lead to the time granule disposably taking very long, be easy to take under many standby modes scene and lose
Lose, lead to search the net time ceaselessly toward pusher, search net flow process and elongate or failure.In addition, because of holding time tool
There is exclusiveness, once searching net to occupy timeslice (such as 7 frame) success, the paging of another standby mode and be
If system message sink point also during this period of time will be unable to receive, finally improve and lose paging and the system of losing disappears
The probability of breath.
Content of the invention
The technical problem to be solved is a kind of method providing terminal frame boundaries and disturbing comma detector
And device, frame boundaries can be carried out using shorter time granule and disturb comma detector.
The present invention for solve above-mentioned technical problem and employed technical scheme comprise that proposition a kind of terminal frame boundaries and
The method disturbing comma detector, comprises the following steps：Auxiliary synchronous code correlation meter is carried out to the multiple time slots receiving
Calculate, obtain the auxiliary synchronous code of each time slot；Before all time slots receiving a frame, many using reception
The syntagmatic of the auxiliary synchronous code of individual time slot predicts the scrambler group number of this frame, and no matter the plurality of time slot is continuous
Time slot or discontinuous time slot；And the border of this frame is determined according to the scrambler group number of prediction.
In one embodiment of this invention, using the syntagmatic of the auxiliary synchronous code of multiple time slots of reception
Predict that the step of the scrambler group number of this frame includes：Auxiliary synchronous code using the first time slot in the plurality of time slot
Search an auxiliary synchronous code relation table, possible scrambler group number set is narrowed down to first set；Many using this
The auxiliary synchronous code of the second time slot in individual time slot searches this auxiliary synchronous code relation table, by possible scrambler group
Number set narrows down to second set from this first set；By that analogy, until possible scrambler group number set only
Comprise a scrambler group number；Wherein this auxiliary synchronous code relation table record comprises one first auxiliary synchronous code and one
The possible scrambler group number set of the combination of two auxiliary synchronous codes, wherein this first auxiliary synchronous code is for searching
Specific auxiliary synchronous code, this second auxiliary synchronous code is any one auxiliary synchronous code, and this second assist in synchronization
Code corresponding to time slot be located at this time slot corresponding to the first auxiliary synchronous code after and be spaced zero, one or more when
Gap.
In one embodiment of this invention, this auxiliary synchronous code relation table constructs in advance and stores.
In one embodiment of this invention, the quantity of the plurality of time slot is 3-5.
In one embodiment of this invention, said method also includes entering using the one or more time slots of other reception
Row auxiliary synchronous code correlation value calculation, obtains the other auxiliary synchronous code of each time slot, using this other auxiliary
The scrambler to verify this frame for the syntagmatic of synchronous code and the auxiliary synchronous code of multiple time slots of reception before
Group number.
In one embodiment of this invention, repeatedly predict the scrambler group number of this frame, and in each this frame of prediction
Judge when scrambler group number is consistent to disturb comma detector success.
In one embodiment of this invention, said method is also included by the auxiliary of timeslot number identical in multiple frames together
Step code correlation is added up, and obtains the auxiliary synchronous code of each time slot using the correlation after adding up.
The present invention also proposes a kind of terminal frame boundaries and disturbs the device of comma detector, including：Auxiliary synchronous code is related
Value computing module, for carrying out auxiliary synchronous code correlation value calculation to the multiple time slots receiving, obtains each time slot
Auxiliary synchronous code；Scrambler group and frame boundary detection module, for before all time slots receiving a frame,
Predict the scrambler group number of this frame using the syntagmatic of the auxiliary synchronous code of multiple time slots of reception, no matter should
Multiple time slots are continuous slot or discontinuous time slot, and determine the side of this frame according to the scrambler group number of prediction
Boundary.
In one embodiment of this invention, the multiple of reception are utilized in this scrambler group and frame boundary detection module
The syntagmatic of the auxiliary synchronous code of time slot predicts that the step of the scrambler group number of this frame comprises the following steps：Using
The auxiliary synchronous code of the first time slot in the plurality of time slot searches an auxiliary synchronous code relation table, and possible is disturbed
Block number set narrows down to first set；Being searched using the auxiliary synchronous code of the second time slot in the plurality of time slot should
Auxiliary synchronous code relation table, possible scrambler group number set is narrowed down to second set from this first set；With
This analogizes, until possible scrambler group number set only comprises a scrambler group number；Wherein this auxiliary synchronous code closes
It is the possible scrambler group number collection combining that table record comprises one first auxiliary synchronous code and one second auxiliary synchronous code
Close, wherein this first auxiliary synchronous code is the specific auxiliary synchronous code for searching, this second auxiliary synchronous code is
Any one auxiliary synchronous code, and this time slot corresponding to the second auxiliary synchronous code is right positioned at this first auxiliary synchronous code institute
After answering time slot and interval zero, one or more time slot.
The present invention due to using above technical scheme, being allowed to compared with prior art, using arbitrarily discontinuous
The assist in synchronization code word of time slot to detect frame boundaries and scrambler group number in advance, in each time slot assist in synchronization code word
After data receiver relevant treatment, carry out auxiliary synchronous code character code word and judge identification, using this auxiliary identifying
Synchronization code word is reducing possible scrambler group number scope it is achieved that frame side in the case of not collecting whole frame data
Boundary and the detection in advance of scrambler group number.
Brief description
It is that the above objects, features and advantages of the present invention can be become apparent, below in conjunction with accompanying drawing to this
Bright specific embodiment elaborates, wherein：
Fig. 1 illustrates the schematic diagram of WCDMA synchronizing channel.
Fig. 2 illustrates the terminal frame boundaries of one embodiment of the invention and the logic diagram of scrambler set detecting device.
Fig. 3 illustrates the terminal frame boundaries of one embodiment of the invention and the flow chart of scrambler group detection method.
Fig. 4 illustrates that disturbing of 16 kinds of code words in follow-up (0-13, interval) time slot that time slot SSC code is 1
Code character.
Fig. 5 illustrates frame boundaries and the discontinuous time slot reception process disturbing comma detector.
Fig. 6 illustrates that multiframe SSC correlation adds up rear 240 correlations.
Specific embodiment
Embodiments of the invention propose terminal frame boundaries and the method and apparatus disturbing comma detector, can be using relatively
Short time granule is carrying out frame boundaries and disturb comma detector.According to embodiments of the invention, can be dispersedly
Receive the multiple discontinuous time slot in WCDMA frame, gradually predict the scrambler group of this frame using these time slots
Number, finally lock unique scrambler group number and determine frame boundaries.The mode of this discontinuous reception is especially suitable
For there being the simultaneously standby multi-mode multi-standby terminal of various modes, because now only need to be with time slot for the time
Grain is without the long granule of occupancy.
In the present embodiment, the example of terminal include but is not limited to mobile phone, panel computer, notebook computer,
Wearable device.Terminal need support WCDMA mode, this pattern can for terminal support various modes it
One, and terminal can have the various modes comprising WCDMA mode simultaneously standby.
Fig. 2 illustrates the terminal frame boundaries of one embodiment of the invention and the logic diagram of scrambler set detecting device.Ginseng
Examine shown in Fig. 1, the device of the present embodiment may include RF receiver module 201, auxiliary synchronous code (SSC) correlation
Computing module 202, scrambler group and frame boundary detection module 203, multi-frame accumulation boundary judgment module 204 and number
According to reception control module 205.Radio frequency (RF) receiver module 201, auxiliary synchronous code (SSC) correlation value calculation module
202nd, scrambler group and frame boundary detection module 203 and multi-frame accumulation boundary judgment module 204 are sequentially connected, to pass
Delivery data stream.Data receiver control module 205 connects RF receiver module 201 to control its DRP data reception process.
Scrambler group and frame boundary detection module 203 and multi-frame accumulation boundary judgment module 204 connect data receiver control module
Whether 205 continue to data according to border detection progress notification the latter and/or to receive in which way.
RF receiver module 201 can receive wireless signal under the control of data receiver control module 205.Number
According to receiving control module 205, RF receiver module 201 is configured to execute the data receiver by time slot granule, often
Secondary receiving data length is all N number of time slot, N>=1.According to actual scene or algorithm performance, smallest particles
Can be n time slot.For example, it is possible to setting n=3 (N is not the integral multiple of n).For the side of description
Just, in the context of the present invention, if not otherwise specified, smallest particles is 1 time slot.
SSC correlation value calculation module 202 carries out the SSC correlation value calculation of time slot, obtains the SSC of each time slot.
For example, SSC correlation value calculation module 202 can conventionally carry out 256 before each time slot
Chip (Chip) data and the associative operation of 16 local SSC codes, export correlation vector.When realizing, use
Local z sequence and input data sequence are divided into 16 sections and add up, and carry out 16 points of FHT (Fast again after adding up
Hasmard Transform, fast hadamard transform), result is multiplied by 16 SSC that (1-j) is this time slot
Code word correlated results, this result saves, and is also required to use during the cumulative boundary judgment of multiframe correlation.
16 SSC code word correlated results are ranked up further.If maximum correlation peak is than secondary strong correlation
Peak value is greater than the threshold range setting, then can be determined that this time slot code word is the corresponding code of maximum correlation peak
Word.Otherwise, the 2 code word outputs of relevant peaks highest are taken.
Scrambler group and frame boundary detection module 203 can utilize before all time slots receiving a frame in advance
The syntagmatic of the SSC of multiple time slots receiving predicts the scrambler group number of this frame, and thereby determines that the side of this frame
Boundary.
For this reason, constructing SSC relation table first and being stored in scrambler group and frame boundary detection module 203, with
The SSC code for having been detected by is inquired about.SSC relation table record comprises one the oneth SSC and one the 2nd SSC
Combination possible scrambler group number set.Here, a SSC can be specific SSC, it is used for making a look up.
2nd SSC be any one SSC, and time slot corresponding to the 2nd SSC be located at time slot corresponding to a SSC it
Afterwards and be spaced zero, one or more (for WCDMA frame, most 13) time slot.
That is, a specific SSC can be selected, such as 1, then select any one in 1 to 16 respectively
Individual SSC.Relation table is listed this two SSC place slot time zero (i.e. two time slots are continuous), one
In the case of individual or multiple time slot, combinations thereof relation may corresponding scrambler group.For example when Fig. 4 illustrates
Gap SSC code is the scrambler group of 1 follow-up (0-13, interval) time slot 16 kinds of code words of appearance, and this can lead to
Cross traversal list 1 to obtain.A in Fig. 4 (1, x) represent that code word 1 arrives all possible scrambler group scope of code word x,
It should be noted that：
1) code word 1 and code word x are probably adjacent time-slots.For example in table 2 below, the 2nd row represent x value,
A (1, x) it is the 3rd scrambler group (0-64) set arranging；
2) code word 1 and code word x are also likely to be non-adjacent time slot, and they are spaced 1 to 13 time slots does not have
Receive.For example, the 2nd time slot of table 3 below does not receive, and x is the code word of the 3rd time slot, and A (1, x)
It is scrambler group (0-64) set of the 4th row in table 3 below；
For another example the 2nd of table 4 below does not all receive to the 14th time slot, and x is the code word of the 15th time slot,
A (1, x) it is scrambler group (0-64) set that in following table, the 4th arranges.
The first time slot SSC code of table 2 is the possible group set of 1 16 kinds of code words of subsequent timeslot
| First time slot SSC | 2nd time slot SSC | Scrambler group (0-64) is gathered |
| 1 | 1 | 0,1 |
| 2 | 0,2,3,4 | |
| 3 | 5 | |
| 4 | 6 | |
| 5 | 1,5,7 | |
| 6 | 8,9 | |
| 7 | 10,11 | |
| 8 | 3,11,12,13 | |
| 9 | 14,15 | |
| 10 | 14,16 | |
| 11 | 17 | |
| 12 | 18,19 | |
| 13 | 7,12,18 | |
| 14 | 9 | |
| 15 | 2,4,13,20 | |
| 16 | 8,21 |
The first time slot SSC code of table 3 is the possible scrambler of 1 time slot of 1 subsequent interval, 16 kinds of code words of time receiving gap again
Group set
The first time slot SSC code of table 4 is 13 time slots of 1 subsequent interval, may the disturbing of 16 kinds of code words of time receiving gap again
Code character scope
In tectonic relationship table, the SSC code word pass that some time slots have specific interval can be constructed as needed
System.For example construct the SSC code word relation table of each two adjacent time-slots in continuous multiple time slots (being spaced apart 0).
And for example in the time slot of construction fixed interval 1-2 time slot, close time slot SSC code word relation between any two
Table (as time slot 1,3,5,7).For another example construct not in the time slot of fixed interval, close time slot two-by-two it
Between SSC code word relation table (as time slot 1,3,7,8,11).Those skilled in the art can basis
Need flexibly to construct these relation tables.Relation table is more, then allow to carry out disturbing the time slot relation of comma detector
More flexible, on the contrary then time slot relation is stricter.
By constructing above-mentioned relation table, it is somebody's turn to do it is possible to use when determining the SSC code word of a time slot
SSC code word tables look-up to determine possible group set, and possible scrambler group number set generally can be reduced by this
To first set.The SSC code word recycling another time slot is tabled look-up, and can enter possible scrambler group number set
One step narrows down to second set from first set.By that analogy, until possible scrambler group number set only comprises
One scrambler group number.The process tabled look-up is to go to search first time slot SSC in each table using SSC code word as index
Consistent relation table therewith, draws the SSC of one or more time slots of subsequent interval (depending on relation table)
The possible scope of code word.
By said method, when the SSC code word determining a time slot, general, 64 scrambler groups (group)
Scope just can narrow down to 22 (being shown in Table 2).If there being 2 time slots (continuously or discontinuously) inside 1 frame
SSC codeword detection out, then scrambler group scope just can narrow down to 1-9, the like, make
Just necessarily be can determine uniquely with the individual time slot of N (N is generally 3-5) arbitrarily (including discontinuous and continuous)
Scrambler group (group ID).So that the SSC code word of certain time slot is for 1 as a example illustrate (SSC code below
Word is any one principle in 1-16 is similar).
Fig. 4 represents, current code word is 1, and possible group scope remembers S0If, a rear code word x (1-16
Scope arbitrary value) when, possible group set A (1, x), then just be can determine that by two code words identifications
Group set is S0∩ A (1, x), if so when continuously to confirm 5 code words be a, b, c, d, e, f,
So group set is finally S5As follows：
S1=S0∩A(a,b)
S2=S1∩B(b,c)
S3=S2∩C(c,d)
S4=S3∩D(d,e)
S5=S4∩D(e,f)
Certainly, the above is more satisfactory situation, the SSC correlation code word output of each time slot in real process
May not be unique.So a, b, c, d, e, f are codeword set, such as a has 2 code words to represent
For a={ a1,a2, b is that unique code word is expressed as b={ b1}.If c, d are unique code words, and
Only corresponding a1When, then can be a in a2Reject a={ a1, simplify Si.
In practice it is also possible to middle occurCode word is so had to confirm mistake before explanation, this connects
Receive and judge unsuccessfully, to need to restart from S0Start.
After the SSC code word of several time slots calculates, if SiIn only remain unique scrambler group number after, remain
This scrambler group number lower is exactly the scrambler group number of prediction.
It is preferred that after predicting unique scrambler group number, then k time slot can be received to verify, general k
1-2 can be taken.If the SSC code word of checking time slot is mated with the scrambler group of prediction, then it is determined that
Specifically disturb comma detector success (corresponding frame boundaries also can determine that).It is preferred that in order to improve reliability,
Can specify that needs are repeated several times by judging unanimously could adjudicate successfully, be specifically shown in judgment condition 1 hereinafter.
If the SSC code word of checking time slot is mismatched with the scrambler group of prediction, then judge current scrambler group inspection
Survey as flase drop, needs continuation detection.Scrambler group and frame boundary detection module 203 output information S2, notify data
Receive control module 205 and continue configuration frame boundary detection data.
Judgment condition 1：If the continuous secondary scrambler group testing result of m (such as m=5) is consistent, then judge this
The frame boundaries of secondary WCDMA cell searching and disturb comma detector success.
Fig. 5 illustrates the frame boundaries of 5 frames (50ms) interior 45 time slots reception and scrambler group detection process is shown
Meaning explanation.First, 1-5 time slot receives, to S during the 5th5In only one of which scrambler group number y, then
Continue to the 6th and 7 time slots to verify；Checking finds that the SSC code word of the 6th and 7 time slots is also belonging to disturb
Block number y, then success count adds 1.Then, the 6th and 7 time slots and the 8th, 9,10 time slots receive,
New S5In also only one of which scrambler group number y, the continue to the 11st, 12 time slots also verify coupling, then
Success count adds 1 again.Thus and thus, if until receiving the 26th, 27 time slots, success count is added to
5, meet judgment condition 1, then judge the frame boundaries of this WCDMA cell searching and disturb comma detector
Success, follow-up 28-45 time slot avoids the need for have received.
If continuous 15 times () are all failed to meet judgment condition 1 by time slot testing result taking m=5 as a example,
Scrambler group and frame boundary detection module 203 output information S1, notify multi-frame accumulation boundary judgment module 204 to carry out
Multiframe SSC correlation adds up and adjudicates.Multiframe SSC correlation add up judgement be before by time slot judgement benefit
Fill, they use identical data, when simply above received all time slot data being pressed identical
Gap number (normalization) correlation accumulates together, and then makes decisions again.
For example in Fig. 5, receive for the 1st, 3,14,34 times and belong to identical time slot (timeslot number is identical), the 2nd,
13rd, 23,33,45 receptions fall within identical time slot.The AGC that different time-gap uses when receiving is different
, so needing when amalgamation result to carry out power normalization.
After multiframe identical time slot correlation (normalization) adds up, the correlation under each time slot is a vector,
It is the correlation of 16 SSC code words.It is possible that not receiving all the time on some time slots after merging, can
To set a default value, have no effect on the judgement setting thresholding below.That is, cumulative be not required for
In every frame, 15 time slots all collect, and can be 1 to 15.
After Fig. 6 is merging, there is the individual correlation of 240 (15*16) in 1 frame 15 time slot.For convenience of explanation,
Assume that each time slot has reception, it is 0-EF that 240 correlations are numbered by 16 systems.
In order to determine scrambler group number, need to travel through each scrambler group, successively suppose frame boundaries be time slot 0-14 (no
It is real time slot), calculate 15 accumulation correlations respectively.In figure 5 above with No. 0 scrambler group (be shown in Table 1,
Time slot code word order is 1,1,2,8,9,10,15,8,10,16,2,7,15,7,16) be
Example is it is assumed that real frame boundaries are 0 time slot, then take numbering 0,10,21,37,48,59,6E,
77th, 89,9F, A1, B6, CE, D6, EF correlation adds up and obtains final correlation.Assume true
Frame boundaries be 2 time slots, then take numbering 20,30,41,57,68,79,8E, 97, A9, BF,
C1, D6, CE, D6, EE, 6,1F correlation adds up and obtains final correlation.
Finally it is ranked up in 960 correlations, take the corresponding scrambler group number of maximum to enter set G0If deposited
Other values and maximum difference in the thresholding setting, then be also selected in G0But (can for simplifying realization
Set and be at most only selected in TOP3), G0For this judgement output.
In order to improve reliability it is also desirable to the judgement that added up several times.1st time is frame0-framekFrame tires out
Plus judgement, carry out frame the 2nd time1-framek+1Frame adds up and adjudicates, and carries out frame the 3rd time2-framek+2
Frame adds up and adjudicates, by that analogy.
Judgment condition 2：If certain scrambler group number exports in judgement (i.e. in continuous 3 multi-frame accumulation
Gi∩Gi+1∩Gi+2), then judge the frame boundaries of this WCDMA cell searching and disturb comma detector success.
It should be noted that after starting the cumulative judgement of multiframe SSC correlation, the new time slot data receiving is pressed non-
Continuous slot SSC codeword decision is carried out simultaneously.
Supplementary additionally as an exception, if there isSo judge epicycle multiframe
Adding up adjudicates unsuccessfully, multi-frame accumulation boundary judgment module 204 output information S3, Qiang Zhiyaoqius data receiver control
Molding block 205 to configure N frame data by continuous slot reception mode and finally to be detected trial；If still
So do not meet judgment condition 1 or judgment condition 2, then this cell searching failure, need again from
PSC begins look for boundary of time slot.
Can determine how to carry out data receiver according to the progress of judgement in data receiver control module 205.Specifically
For, if receiving scrambler group and frame boundary detection module 203 or the frame of multi-frame accumulation boundary judgment module 204
Boundary judgment success feedback information S4, then can stop undone time slot and receive；If receiving multi-frame accumulation side
Boundary's judging module 204 requires to receive information S3 of mode by continuous slot, then carry out for granule by frame
Data receiver.Under double standby scene, either press time slot granule or frame granule receives, between being required for treating
Coordinate timeslice it is anticipated that, more difficult than by time slot granule by frame granular way.
Conclude above-mentioned, a kind of present invention terminal frame boundaries and the method disturbing comma detector.Fig. 3 illustrates the present invention
The terminal frame boundaries of one embodiment and the flow chart of scrambler group detection method.With reference to shown in Fig. 3, method includes
Following steps：
In step 301, auxiliary synchronous code correlation value calculation is carried out to the multiple time slots receiving, obtain the auxiliary of each time slot
Help synchronous code；
In step 302, before all time slots receiving a frame, auxiliary using multiple time slots of reception
The syntagmatic helping synchronous code predicts the scrambler group number of this frame, and no matter the plurality of time slot is continuous slot or not
Continuous slot；And
In step 303, determine the border of this frame according to the scrambler group number of prediction.
In step 302, can also be entered using the other one or more time slots (generally 1-2) that receive
Row SSC correlation value calculation, obtain each time slot other SSC, using this other SSC with connect before
The scrambler group number to verify this frame for the syntagmatic of the SSC of multiple time slots receiving.
In step 302, can also repeatedly predict the scrambler group number of this frame, and the scrambler in each this frame of prediction
Judge when group number is consistent to disturb comma detector success.
In step 301, may also include and the auxiliary synchronous code correlation of timeslot number identical in multiple frames is carried out
Cumulative, and the auxiliary synchronous code of each time slot is obtained using the correlation after adding up.
Unique in step 302, if scrambler group number cannot be determined, can conventionally receive
Detection scrambler group number and frame boundaries after all time slots together.
The above embodiment of the present invention carrys out detection frame in advance using the SSC code word of arbitrarily discontinuous 3-5 time slot
Border and scrambler group number, after each time slot SSC data receiver relevant treatment, carry out SSC code word immediately
Judge identification, reduce possible scrambler group number scope using this SSC code word identifying, realize not receiving
Frame boundaries in the case of neat frame data and the detection in advance of scrambler group number.And detection in advance can receive
The number of timeslots significantly less than a frame for the number of timeslots in the case of, successfully determine required scrambler group number
And frame boundaries.The embodiment of the present invention can also be closed the SSC correlation vector of identical time slot after multiframe receives
And after detected again, improve the success rate of detection.
The terminal frame boundaries of the above embodiment of the present invention can be in such as computer with the method disturbing comma detector
Software, hardware or computer software are carried out with the computer-readable medium combining of hardware.For
For hardware is implemented, embodiment described in the present invention can be in one or more special ICs
(ASIC), digital signal processor (DSP), digital signal processor (DAPD), programmable
Logical device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller,
Microprocessor, carry out in addition reality for executing the selection combination of other electronic installations of above-mentioned functions or said apparatus
Apply.In some circumstances, this kind of embodiment can be implemented by controller.
For software is implemented, embodiment described in the present invention can pass through such as program module
And the independent software module such as function module (functions) is being carried out, wherein often (procedures)
One module executes one or more functions described herein and operation.Software code can be by compiling suitable
Journey language calls the turn the application software write to be carried out, and can be stored in internal memory, by controller or processor
Execution.
Although the present invention to describe with reference to current specific embodiment, common skill in the art
Art personnel it should be appreciated that above embodiment be intended merely to illustrate the present invention, without departing from the present invention essence
Various equivalent change or replacement also can be made, therefore, as long as the connotation in the present invention in the case of god
In the range of the change of above-described embodiment, modification all will be fallen in the range of following claims.
Claims (9)
1. a kind of terminal frame boundaries and the method disturbing comma detector, comprise the following steps：
Auxiliary synchronous code correlation value calculation is carried out to the multiple time slots receiving, obtains the auxiliary synchronous code of each time slot；
Before all time slots receiving a frame, using the group of the auxiliary synchronous code of multiple time slots of reception
Close the scrambler group number of this frame of Relationship Prediction, no matter the plurality of time slot is continuous slot or discontinuous time slot；With
And
Determine the border of this frame according to the scrambler group number of prediction.
2. the method for claim 1 is it is characterised in that auxiliary using multiple time slots of reception
The syntagmatic helping synchronous code predicts that the step of the scrambler group number of this frame includes：
Auxiliary synchronous code using the first time slot in the plurality of time slot searches an auxiliary synchronous code relation table, will
Possible scrambler group number set narrows down to first set；
Search this auxiliary synchronous code relation table using the auxiliary synchronous code of the second time slot in the plurality of time slot, will
Possible scrambler group number set narrows down to second set from this first set；
By that analogy, until possible scrambler group number set only comprises a scrambler group number；
Wherein this auxiliary synchronous code relation table record comprises one first auxiliary synchronous code and one second auxiliary synchronous code
The possible scrambler group number set of combination, wherein this first auxiliary synchronous code are the specific assist in synchronization for searching
Code, this second auxiliary synchronous code is any one auxiliary synchronous code, and this time slot position corresponding to the second auxiliary synchronous code
After this time slot corresponding to the first auxiliary synchronous code and be spaced zero, one or more time slot.
3. method as claimed in claim 2 is it is characterised in that this auxiliary synchronous code relation table is structure in advance
Make and store.
4. the method for claim 1 is it is characterised in that the quantity of the plurality of time slot is 3-5.
5. the method for claim 1 it is characterised in that also include using other receive one or
Multiple time slots carry out auxiliary synchronous code correlation value calculation, obtain the other auxiliary synchronous code of each time slot, using this
The syntagmatic of other auxiliary synchronous code and the auxiliary synchronous code of multiple time slots of reception before to be verified
The scrambler group number of this frame.
6. the method as described in claim 1 or 5 is it is characterised in that repeatedly predict the scrambler group of this frame
Number, and judge when the scrambler group number of each this frame of prediction is consistent to disturb comma detector success.
7. the method for claim 1 is it is characterised in that also include time slot identical in multiple frames
Number auxiliary synchronous code correlation added up, and obtain the assist in synchronization of each time slot using the correlation after cumulative
Code.
8. a kind of terminal frame boundaries and the device disturbing comma detector, including：
Auxiliary synchronous code correlation value calculation module is related for the multiple time slots receiving are carried out with auxiliary synchronous code
Value calculates, and obtains the auxiliary synchronous code of each time slot；
Scrambler group and frame boundary detection module, for before all time slots receiving a frame, using connecing
The syntagmatic of the auxiliary synchronous code of multiple time slots received predicts the scrambler group number of this frame, no matter the plurality of time slot
It is continuous slot or discontinuous time slot, and determine the border of this frame according to the scrambler group number of prediction.
9. device as claimed in claim 8 is it is characterised in that this scrambler group and frame boundary detection module
The syntagmatic of the auxiliary synchronous code of middle multiple time slots using reception predicts the step of the scrambler group number of this frame
Suddenly comprise the following steps：
Auxiliary synchronous code using the first time slot in the plurality of time slot searches an auxiliary synchronous code relation table, will
Possible scrambler group number set narrows down to first set；
Search this auxiliary synchronous code relation table using the auxiliary synchronous code of the second time slot in the plurality of time slot, will
Possible scrambler group number set narrows down to second set from this first set；
By that analogy, until possible scrambler group number set only comprises a scrambler group number；
Wherein this auxiliary synchronous code relation table record comprises one first auxiliary synchronous code and one second auxiliary synchronous code
The possible scrambler group number set of combination, wherein this first auxiliary synchronous code are the specific assist in synchronization for searching
Code, this second auxiliary synchronous code is any one auxiliary synchronous code, and this time slot position corresponding to the second auxiliary synchronous code
After this time slot corresponding to the first auxiliary synchronous code and be spaced zero, one or more time slot.
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