CN110278018A - Detection method, device and the storage medium and electronic equipment of maximum-ratio combing - Google Patents
Detection method, device and the storage medium and electronic equipment of maximum-ratio combing Download PDFInfo
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- CN110278018A CN110278018A CN201810205836.3A CN201810205836A CN110278018A CN 110278018 A CN110278018 A CN 110278018A CN 201810205836 A CN201810205836 A CN 201810205836A CN 110278018 A CN110278018 A CN 110278018A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/04—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources
- H04W40/10—Communication route or path selection, e.g. power-based or shortest path routing based on wireless node resources based on available power or energy
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/12—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality
- H04W40/16—Communication route or path selection, e.g. power-based or shortest path routing based on transmission quality or channel quality based on interference
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Abstract
This disclosure relates to a kind of detection method of maximum-ratio combing, device and storage medium and electronic equipment, this method comprises: obtaining the corresponding sampled point energy value of multipath in each cell of activation collection；Destination path is determined from the multipath according to the sampled point energy value；The quality of reception of each cell is obtained by the sampled point energy value of the destination path；Target cell, and the detection of the maximum-ratio combing by Target cell progress receiver are filtered out from the cell according to the quality of reception.
Description
Technical field
This disclosure relates to wireless communication technology field, and in particular, to a kind of detection method of maximum-ratio combing, device and
Storage medium and electronic equipment.
Background technique
Since wireless signal will appear diffraction and diffraction etc. during channel communication, so that multipath effect is caused, RAKE
Receiver can use multipath effect and the multipath signal in multipath received and demodulated, and then again believe the multipath after demodulation
It number is merged according to high specific to obtain optimal reception benefit, therefore, it is (wide that RAKE reception technique has become WCDMA at present
Band CDMA；Wideband Code division multiple access；WCDMA) mobile communication system generally uses
A kind of diversity receiving technology.
But since the signal strength of each cell of activation collection is different, and the mutual immunity between each cell is stronger,
In this way, with the movement (such as user terminal carry out mobile soft handover) of user terminal so that the change in signal strength of cell compared with
Greatly, at this point, it is preferable that the cell portion may deteriorate the quality of reception if the quality of reception of cell portion signal becomes poor
Cell, to affect the reliability of the maximum-ratio combing of Rake receiver.
Summary of the invention
To solve the above-mentioned problems, the present disclosure proposes a kind of detection method of maximum-ratio combing, device and storage mediums
And electronic equipment.
According to the first aspect of the embodiments of the present disclosure, a kind of detection method of maximum-ratio combing is provided, receiver is applied to,
Include:
Obtain the corresponding sampled point energy value of multipath in each cell of activation collection；
Destination path is determined from the multipath according to the sampled point energy value；
The quality of reception of each cell is obtained by the sampled point energy value of the destination path；
Target cell is filtered out from the cell according to the quality of reception, and is received by the Target cell
The detection of the maximum-ratio combing of machine.
Optionally, the corresponding sampled point energy value of multipath includes: in each cell for obtaining activation collection
The window center of the search window of each of the activation collection cell is determined according to history samples point energy value；
Determine deviation post of the multipath relative to the window center described in each cell；
By the deviation post carry out coherent channel estimation and incoherent channel estimation successively obtain the first estimated value and
Second estimated value, and the corresponding sampled point energy of the multipath is obtained according to first estimated value and second estimated value
Value.
Optionally, described to determine that destination path includes: from the multipath according to the sampled point energy value
At least one initial path is filtered out from the multipath according to the sampled point energy value；
The destination path is determined according to the initial path.
Optionally, described that at least one initial path packet is filtered out from the multipath according to the sampled point energy value
It includes:
The multipath for determining that the sampled point energy value is more than or equal to the first screening parameter is the initial path；Or,
The multipath that preset quantity is determined according to the sequence of the sampled point energy value from big to small is the initial path；
Or,
The multipath for determining that the sampled point energy value is more than or equal to the first screening parameter is initial path to be determined, and
Determine that the initial path to be determined of the preset quantity is described initial according to the sequence of the sampled point energy value from big to small
Path.
Optionally, it is described for being more than or equal to the multipath of the first screening parameter in the determination sampled point energy value
Before initial path, further includes:
Maximum sampled point energy value is determined from the sampled point energy value；
First screening parameter is determined according to the maximum sampled point energy value.
Optionally, described that the target is determined according to the initial path when the initial path includes multiple paths
Path includes:
Obtain the energy failures region of each initial path；The energy failures region is adopting for the initial path
Sampling point energy value is in the region of failure state；
Determine whether the initial path is located at outside the energy failures region；
When the initial path is located at outside the energy failures region, determine that the initial path is path to be determined；
The destination path is determined according to the path to be determined.
Optionally, the energy failures region for obtaining each initial path includes:
The energy failures region of each initial path is obtained by failed areas obtaining step；
The failed areas obtaining step includes:
The target initial path bigger than the sampled point energy value of current initial path is obtained from multiple initial paths；
The energy failures region of the current initial path is determined according to the target initial path.
Optionally, described to determine that the destination path includes: according to the path to be determined
Obtain the noise region in all paths to be determined；
Noise mean value is obtained according to sampled point energy value in the noise region；
The destination path is obtained from the path to be determined according to the noise mean value.
Optionally, described the destination path is obtained from the path to be determined according to the noise mean value to include:
The second screening parameter is determined according to the noise mean value and the first parameter preset；
The destination path is obtained from the path to be determined according to second screening parameter.
Optionally, the sampled point energy value by the destination path obtains the quality of reception packet of each cell
It includes:
Obtain whole sampled point energy values of the destination paths and value；
Obtain the total quantity of all destination paths；
The quality of reception of each cell is obtained according to described and value and the total quantity and the noise mean value.
Optionally, described Target cell is filtered out from the cell according to the quality of reception to include:
The maximum quality of reception is obtained from all qualities of reception of the cell；
Third screening parameter is determined according to the maximum quality of reception and the second parameter preset；
The Target cell is filtered out from the cell according to the third screening parameter.
According to the second aspect of an embodiment of the present disclosure, a kind of detection device of maximum-ratio combing is provided, receiver is applied to,
Include:
First obtains module, the corresponding sampled point energy value of multipath in each cell for obtaining activation collection；
Determining module, for determining destination path from the multipath according to the sampled point energy value；
Second obtains module, and the reception of each cell is obtained for the sampled point energy value by the destination path
Quality；
Processing module for filtering out Target cell from the cell according to the quality of reception, and passes through the mesh
Mark the detection that cell carries out the maximum-ratio combing of receiver.
Optionally, the first acquisition module includes:
First determines submodule, for determining each of the activation collection cell according to history samples point energy value
The window center of search window；
Second determines submodule, for determining offset of the multipath relative to the window center described in each cell
Position；
First acquisition submodule, for by the deviation post carry out coherent channel estimation with incoherent channel estimation according to
It is secondary to obtain the first estimated value and the second estimated value, and the multipath is obtained according to first estimated value and second estimated value
Corresponding sampled point energy value.
Optionally, the determining module includes:
First screening submodule, it is initial for filtering out at least one from the multipath according to the sampled point energy value
Path；
Third determines submodule, for determining the destination path according to the initial path.
Optionally, the first screening submodule, for determining that the sampled point energy value is more than or equal to the first sieve
The multipath for selecting parameter is the initial path；Or,
The multipath that preset quantity is determined according to the sequence of the sampled point energy value from big to small is the initial path；
Or,
The multipath for determining that the sampled point energy value is more than or equal to the first screening parameter is initial path to be determined, and
Determine that the initial path to be determined of the preset quantity is described initial according to the sequence of the sampled point energy value from big to small
Path.
Optionally, the determining module further include:
4th determines submodule, for determining maximum sampled point energy value from the sampled point energy value；
5th determines submodule, for determining first screening parameter according to the maximum sampled point energy value.
Optionally, when the initial path includes multiple paths, the third determines submodule, for obtaining each institute
State the energy failures region of initial path；The energy failures region is that the sampled point energy value of the initial path is in failure
The region of state；
Determine whether the initial path is located at outside the energy failures region；
When the initial path is located at outside the energy failures region, determine that the initial path is path to be determined；
The destination path is determined according to the path to be determined.
Optionally, the third determines submodule, for obtaining each initial road by failed areas obtaining step
The energy failures region of diameter；
The failed areas obtaining step includes:
The target initial path bigger than the sampled point energy value of current initial path is obtained from multiple initial paths；
The energy failures region of the current initial path is determined according to the target initial path.
Optionally, the third determines submodule, for obtaining the noise region in all paths to be determined；
Noise mean value is obtained according to sampled point energy value in the noise region；
The destination path is obtained from the path to be determined according to the noise mean value.
Optionally, the third determines submodule, for determining second according to the noise mean value and the first parameter preset
Screening parameter；
The destination path is obtained from the path to be determined according to second screening parameter.
Optionally, the second acquisition module includes:
Second acquisition submodule, for obtain whole sampled point energy values of the destination paths and value；
Third acquisition submodule, for obtaining the total quantity of all destination paths；
4th acquisition submodule, for obtaining each institute according to described and value and the total quantity and the noise mean value
State the quality of reception of cell.
Optionally, the processing module includes:
5th acquisition submodule, for obtaining the maximum quality of reception from all qualities of reception of the cell；
6th determines submodule, for determining third screening ginseng according to the maximum quality of reception and the second parameter preset
Number；
Second screening submodule is small for filtering out the target from the cell according to the third screening parameter
Area.
According to the third aspect of an embodiment of the present disclosure, a kind of computer readable storage medium is provided, calculating is stored thereon with
The step of machine program, which realizes method described above when being executed by processor.
According to a fourth aspect of embodiments of the present disclosure, a kind of electronic equipment is provided, comprising:
Memory is stored thereon with computer program；And
One or more processor, for executing the program in the memory, to realize the step of method described above
Suddenly.
Through the above technical solutions, obtaining the corresponding sampled point energy value of multipath in each cell of activation collection；According to institute
It states sampled point energy value and determines destination path from the multipath；It is obtained by the sampled point energy value of the destination path each
The quality of reception of the cell；Target cell is filtered out from the cell according to the quality of reception, and passes through the target
Cell carries out the detection of the maximum-ratio combing of receiver, in this way, by screening to the multipath in each cell, to pass through
Multipath after screening carries out the assessment of the quality of reception to cell, and according to the quality of reception is filtered to obtain target to cell small
Area improves the maximum-ratio combing of receiver (e.g., RAKE receiver) so that Target cell participates in the detection of maximum-ratio combing
Reliability, and improve communication quality.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is a kind of flow chart of the detection method of maximum-ratio combing shown in disclosure exemplary embodiment；
Fig. 2 is the flow chart of the detection method of another maximum-ratio combing shown in disclosure exemplary embodiment；
Fig. 3 is the block diagram of the detection device of the first maximum-ratio combing shown in disclosure exemplary embodiment；
Fig. 4 is the block diagram of the detection device of second of maximum-ratio combing shown in disclosure exemplary embodiment；
Fig. 5 is the block diagram of the detection device of the third maximum-ratio combing shown in disclosure exemplary embodiment；
Fig. 6 is the block diagram of the detection device of the 4th kind of maximum-ratio combing shown in disclosure exemplary embodiment；
Fig. 7 is the block diagram of the detection device of the 5th kind of maximum-ratio combing shown in disclosure exemplary embodiment；
Fig. 8 is the block diagram of the detection device of the 6th kind of maximum-ratio combing shown in disclosure exemplary embodiment；
Fig. 9 is the block diagram of a kind of electronic equipment shown in disclosure exemplary embodiment.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
Firstly, the application scenarios to the disclosure are described, the disclosure can be applied to be divided by RAKE receiver
Collect received scene, under the scene, due in land mobile channel, there are barrier (such as building, massif) in space,
The phenomenon that produce multipath transmisstion, in turn resulting in user terminal, there are multipath signals, in a wcdma system, if multipath is believed
Time delay between number is more than or equal to preset threshold, then RAKE receiver can isolate aerial multipath signal, and will divide
Multipath signal from after is demodulated and is merged, to eliminate the difference of phase between multipath signal, frequency and amplitude etc., from
And the multipath fading of signal is avoided, improve communication quality.
In the related art, firstly, RAKE receiver is after receiving the signal of different community, can to each cell into
Row Multipath searching obtains multipath signal, so as to get the multidiameter delay of each multipath signal in each cell, then,
It, can be right respectively using multiple RAKE receiving branch according to the multidiameter delay of the multipath signal searched for each cell
The multipath signal is demodulated (including descrambling and de-spreading, channel estimation and channel rotation correction processing etc.), in this way, passing through above-mentioned solution
After tune, the phase of each RAKE receiving branch output data sequence is almost the same, and the multipath signal weighting that signal amplitude is big
Weight it is big, signal amplitude it is small multipath signal weighting weight it is small, so as to each multipath signal carry out maximum-ratio combing when
It realizes optimal merging effect, still, maximum-ratio combing is carried out to multipath signal through the above way, is had the following problems:
There are when the poor small and weak area of the quality of reception in above-mentioned multiple cells, participated in most if the small and weak area to be demodulated to the data sequence come
The combined detection of big ratio, then may be decreased the reliability of the maximum-ratio combing of RAKE receiver, to reduce communication quality.
To solve the above-mentioned problems, the present disclosure proposes a kind of detection method of maximum-ratio combing, device and storage mediums
And electronic equipment, by obtaining the corresponding sampled point energy value of multipath in each cell that activation collects, according to the sampled point energy
Magnitude determines destination path from multipath, and the reception matter of each cell is obtained according to the sampled point energy value of the destination path
Amount, filters out Target cell from the cell according to the quality of reception, and the maximum-ratio combing of receiver is carried out by the Target cell
Detection, in this way, by being screened to the multipath in each cell, to be received by the multipath after screening to cell
The assessment of quality, and cell is filtered according to the quality of reception to obtain Target cell, so that Target cell participates in high specific and closes
And detection, improve the reliability of the maximum-ratio combing of receiver (e.g., RAKE receiver), and improve communication quality.
The disclosure is described in detail combined with specific embodiments below.
Fig. 1 is a kind of flow chart of the detection method of maximum-ratio combing shown in disclosure exemplary embodiment, is applied to
Receiver (receiver may include RAKE receiver), as shown in Figure 1, this method comprises:
S101, the corresponding sampled point energy value of multipath in each cell of activation collection is obtained.
Wherein, which is the set that the cell of connection is established with user terminal, which is to pass through
The corresponding energy value of multipath in each cell that search window determines.
S102, destination path is determined from the multipath according to the sampled point energy value.
In land mobile communication system, user terminal is often in the more complicated environment of landform (as included building
Object and massif etc.), in this way, diffraction and diffraction etc. can occur in signals transmission between base station and user terminal, to make
At multipath effect, therefore, there are Multipath Transmission, the disclosure can screen the multipath to obtain destination path signal, thus
The quality of reception of the cell can be accurately obtained by the destination path in the next steps.
S103, the quality of reception that each cell is obtained by the sampled point energy value of the destination path.
Wherein, which may include signal-to-noise ratio.
S104, Target cell is filtered out from the cell according to the quality of reception, and is received by the Target cell
The detection of the maximum-ratio combing of machine.
Using the above method, by being screened to the multipath in each cell, thus by the multipath after screening to small
Area carries out the assessment of the quality of reception, and is filtered to obtain Target cell to cell according to the quality of reception, so that Target cell is joined
With the detection of maximum-ratio combing, in this way, improving the reliability of the maximum-ratio combing of RAKE receiver, and communication matter is improved
Amount.
Fig. 2 is a kind of flow chart of the detection method of maximum-ratio combing shown in disclosure exemplary embodiment, is applied to
Receiver (receiver may include RAKE receiver), as shown in Fig. 2, this method comprises:
S201, the window center for activating the search window of each cell of collection is determined according to history samples point energy value.
Wherein, which is the set that the cell of connection is established with user terminal, and the long N of the window of the search window is preparatory
It is arranged, illustratively, according to WCDMA agreement: the searching route of cell is generally in the range of ± 80chip, therefore, the search
The long N of the window of window can be 160chip, and certainly, the window length of the search window can also be according to the data processing of RAKE receiver
Ability adjusts accordingly, and still, the window length of the search window cannot be configured too short, to prevent during Multipath searching
There is the serious phenomenon of path missing inspection.
It should be noted that the window length of the corresponding search window of each cell can be identical, and each this is small
The search window in area is all using the most strong energy path of the history in the cell as window center, in a kind of possible implementation
In, available history samples point energy value, and the most strong energy path of the history is determined according to the history samples point energy value, i.e.,
The corresponding path of maximum history samples point energy value is the most strong energy path of the history, wherein the history samples point energy value
RAKE receiver be can be in the sampled point energy value of previous frame, above-mentioned example is merely illustrative, and the disclosure does not limit this
It is fixed.
S202, deviation post of the multipath relative to the window center in each cell is determined.
There are multipaths in each cell, and the window center of the search window of the cell is the most strong energy path of history,
Therefore, usually after determining window center, can the both ends in the search window from window center to search window successively go
Other strong energy path is detected, in this way, the deviation post can be respectively relative to the search window for the multipath in the cell
Window center position.
S203, the first estimated value is successively obtained by deviation post progress coherent channel estimation and incoherent channel estimation
With the second estimated value, and the corresponding sampled point energy value of the multipath is obtained according to first estimated value and second estimated value.
In this step, in the search window, each path in the multipath is equivalent to a sampled point, in this way, can
To get the sampled point energy value in each path in the multipath respectively, the process for specifically obtaining the sampled point energy value can be with
It with reference to the prior art, repeats no more, is filtered out from the multipath so as to pass through the sampled point energy value in the next steps
Destination path.
S204, at least one initial path is filtered out from the multipath according to the sampled point energy value.
In this step, it includes: true at least one initial path being filtered out from the multipath according to the sampled point energy value
The multipath that the fixed sampled point energy value is more than or equal to the first screening parameter is the initial path；Or, according to the sampled point energy
The sequence of magnitude from big to small determines that the multipath of preset quantity is the initial path；Or, determine the sampled point energy value be greater than or
The multipath that person is equal to the first screening parameter is initial path to be determined, and true according to the sequence of sampled point energy value from big to small
The initial path to be determined of the fixed preset quantity is the initial path, in this way, can be according to the data processing energy of RAKE receiver
Power limits the quantity of multipath.
In addition, being the initial path in the multipath for determining that the sampled point energy value is more than or equal to the first screening parameter
Before, further includes: maximum sampled point energy value is determined from the sampled point energy value, and is determined according to the maximum sampled point energy value
The sampled point energy value can be ranked up by first screening parameter according to descending in one possible implementation, from
And the maximum sampled point energy value is determined according to the ranking results, wherein the corresponding path of maximum sampled point energy value is most
Big energy path, illustratively, first screening parameter can be the difference of maximum sampled point energy value and M1db, i.e., maximum sampling
Point energy value and 10-M1/10Product, the method for above-mentioned the first screening parameter of acquisition is merely illustrative, and the disclosure does not make this
It limits.
It should be noted that when the initial path includes a path, it is determined that the initial path is destination path；?
When the initial path includes multiple paths, then path to be determined is determined according to the initial path, and true according to the path to be determined
Set the goal path, and the mistake that destination path is obtained when the initial path includes multiple paths will be described in detail in subsequent step S205
Journey.
S205, destination path is determined according to the initial path.
In this step, the destination path is determined by following steps:
S11, the energy failures region for obtaining each initial path.
Wherein, which is that the sampled point energy value of the initial path is in the region of failure state, the mistake
Effect state be the sampled point energy value in the energy failures region when can be with ignored state, in a kind of possible realization
In mode, the energy failures region of each initial path can be obtained by failed areas obtaining step, which obtains
Taking step includes: the initial road of target that acquisition is bigger than the sampled point energy value of current initial path from multiple initial paths
Diameter, and determine according to the target initial path energy failures region of the current initial path, if the current initial path exists
Then accordingly there are multiple energy failures regions in multiple target initial paths, further, which can be set
For the region within the scope of the +/- M2samples of the target initial path, M2 is less than 1chip, and the value of M2 can be according to adopting
Sample rate determines that illustratively, when sample rate is 1 sampling, the corresponding value of M2 is 0；When sample rate is 2 sampling, M2 pairs
The value answered is 1；When sample rate is 4 sampling, the corresponding value of M2 is 3, it should be noted that the sample rate connects for RAKE
Number of samples of the receipts machine in WCDMA minimum unit time 1chips (10/38400ms), above-mentioned example are merely illustrative, this
It is open that this is not construed as limiting.
S12, determine whether the initial path is located at outside the energy failures region.
When the initial path is located at outside the energy failures region, S13 and S14 is executed；
When the initial path is located in the energy failures region, S15 is executed.
S13, determine that the initial path is path to be determined.
S14, destination path is determined according to the path to be determined.
In this step, destination path can be determined from the path to be determined by following steps:
S141, the noise region for obtaining all paths to be determined.
Wherein, which can be the region outside all +/- M2samples ranges in the path to be determined.
S142, noise mean value is obtained according to sampled point energy value in the noise region.
Optionally, in the energy and value and the noise region for obtaining whole sampled point energy values in the noise region
The corresponding sampled point of whole sampled point energy values number of samples, in this way, the ratio between the energy and value and the number of samples is
For the noise mean value.
S143, the destination path is obtained from the path to be determined according to the noise mean value.
Wherein, the second screening parameter is determined according to the noise mean value and the first parameter preset, and is joined according to second screening
Number obtains the destination path from the path to be determined, which can be passed through by algorithm simulating or actual test
Test determination, second screening parameter can be the noise mean value and first parameter preset product, illustratively, this first preset
Parameter can be 1.5, in this way, when the sampled point energy value in the path to be determined is more than or equal to second screening parameter,
Determine that the path to be determined is destination path, when the sampled point energy value in the path to be determined is less than second screening parameter,
The path to be determined is filtered out, above-mentioned example is merely illustrative, and the disclosure is not construed as limiting this.
S15, determine that the initial path is Invalid path.
In this way, the Invalid path can be filtered out, so that Invalid path is without carrying out connecing for cell in the next steps
The assessment for receiving quality, to improve the accuracy rate of the quality of reception of cell.
S206, the quality of reception that each cell is obtained by the sampled point energy value of the destination path.
In this step, the acquisition modes of the quality of reception of each cell are as follows: obtain the sampled point of all destination paths
Energy value and value, and the total quantity of all destination paths is obtained, thus according to this and value and the total quantity and the noise
Mean value obtains the quality of reception of each cell, which may include signal-to-noise ratio, specifically, it is possible, firstly, to calculate this
Ratio between value and the total quantity obtains average energy value, then, determines that this is small according to the average energy value and the noise mean value
The quality of reception in area, wherein the calculation formula of the quality of reception of the cell can indicate are as follows: SNR=(RSCP-NOISE)/
NOISE, wherein SNR indicates the quality of reception, and RSCP indicates average energy value, and NOISE indicates noise mean value.
S207, the maximum quality of reception is obtained from all qualities of reception of the cell.
Illustratively, can to all the cells the quality of reception according to descending sort, so as to true according to ranking results
The maximum quality of reception is made, above-mentioned example is merely illustrative, and the disclosure is not construed as limiting this.
S208, third screening parameter is determined according to the maximum quality of reception and the second parameter preset.
In this step, which can be the product of the maximum quality of reception and the second parameter preset, should
Second parameter preset can also be empirically determined by algorithm simulating or actual test, and illustratively, which can be with
It is 0.25, so that being screened in the next steps by the third screening parameter to whole cells.
S209, Target cell is filtered out from the cell according to the third screening parameter.
Wherein it is possible to successively determine whether the quality of reception of the cell is more than or equal to the third screening parameter, and
When the quality of reception of the cell is more than or equal to the third screening parameter, determine that the cell is Target cell；In the cell
When the quality of reception is less than the third screening parameter, the cell is filtered out.
S210, by the Target cell carry out receiver maximum-ratio combing detection.
Wherein, using the destination path of obtained Target cell as Traffic Channel (such as DPDCH, AGCH, SCCPCH,
DPCCH, RGCH and HICH etc.) RX path, every RX path has relevant traffic channel data, and maximum-ratio combing can
To obtain after demodulating to the traffic channel data between different community, which can refer to the prior art, repeat no more.
Using the above method, by being screened to the multipath in each cell, thus by the multipath after screening to small
Area carries out the assessment of the quality of reception, and is filtered to obtain Target cell to cell according to the quality of reception, so that Target cell is joined
With the detection of maximum-ratio combing, in this way, improving the reliability of the maximum-ratio combing of RAKE receiver, and communication matter is improved
Amount.
Fig. 3 is a kind of block diagram of the detection device of maximum-ratio combing shown in disclosure exemplary embodiment, applied to connecing
Receipts machine, as shown in Figure 3, comprising:
First obtains module 301, the corresponding sampled point energy value of multipath in each cell for obtaining activation collection；
Determining module 302, for determining destination path from the multipath according to the sampled point energy value；
Second obtains module 303, and the reception of each cell is obtained for the sampled point energy value by the destination path
Quality；
Processing module 304, for filtering out Target cell from the cell according to the quality of reception, and it is small by the target
Area carries out the detection of the maximum-ratio combing of receiver.
Fig. 4 is a kind of block diagram of the detection device of maximum-ratio combing shown in disclosure exemplary embodiment, such as Fig. 4 institute
Show, which includes:
First determines submodule 3011, for determining each of the activation collection cell according to history samples point energy value
The window center of search window；
Second determines submodule 3012, for determining bits of offset of the multipath relative to the window center in each cell
It sets；
First acquisition submodule 3013, for carrying out coherent channel estimation and incoherent channel estimation by the deviation post
The first estimated value and the second estimated value are successively obtained, and it is corresponding according to first estimated value with second estimated value to obtain the multipath
Sampled point energy value.
Fig. 5 is a kind of block diagram of the detection device of maximum-ratio combing shown in disclosure exemplary embodiment, such as Fig. 5 institute
Show, which includes:
First screening submodule 3021, it is initial for filtering out at least one from the multipath according to the sampled point energy value
Path；
Third determines submodule 3022, for determining the destination path according to the initial path.
Optionally, the first screening submodule 3021, for determining that the sampled point energy value is more than or equal to the first sieve
The multipath for selecting parameter is the initial path；Or,
The multipath that preset quantity is determined according to the sequence of sampled point energy value from big to small is the initial path；Or,
The multipath for determining that the sampled point energy value is more than or equal to the first screening parameter is initial path to be determined, and is pressed
The initial path to be determined that the preset quantity is determined according to the sequence of sampled point energy value from big to small is the initial path.
Fig. 6 is a kind of block diagram of the detection device of maximum-ratio combing shown in disclosure exemplary embodiment, such as Fig. 6 institute
Show, the determining module 302 further include:
4th determines submodule 3023, for determining maximum sampled point energy value from the sampled point energy value；
5th determines submodule 3024, for determining first screening parameter according to the maximum sampled point energy value.
Optionally, when the initial path includes multiple paths, which determines submodule 3022, for obtaining each be somebody's turn to do
The energy failures region of initial path；The energy failures region is that the sampled point energy value of the initial path is in failure state
Region；
Determine whether the initial path is located at outside the energy failures region；
When the initial path is located at outside the energy failures region, determine that the initial path is path to be determined；
The destination path is determined according to the path to be determined.
Optionally, which determines submodule 3022, for obtaining each initial road by failed areas obtaining step
The energy failures region of diameter；
The failed areas obtaining step includes:
The initial road of the multiple targets bigger than the sampled point energy value of current initial path is obtained from multiple initial paths
Diameter；
The energy failures region of the current initial path is determined according to the target initial path.
Optionally, which determines submodule 3022, for obtaining the noise region in all paths to be determined；
Noise mean value is obtained according to sampled point energy value in the noise region；
The destination path is obtained from the path to be determined according to the noise mean value.
Optionally, which determines submodule 3022, for determining second according to the noise mean value and the first parameter preset
Screening parameter；
The destination path is obtained from the path to be determined according to second screening parameter.
Fig. 7 is a kind of block diagram of the detection device of maximum-ratio combing shown in disclosure exemplary embodiment, such as Fig. 7 institute
Show, which includes:
Second acquisition submodule 3031, for obtain all the destination paths sampled point energy value and value；
Third acquisition submodule 3032, for obtaining the total quantity of all destination paths；
4th acquisition submodule 3033, for according to should and value and the total quantity and the noise mean value obtain that each this is small
The quality of reception in area.
Fig. 8 is a kind of block diagram of the detection device of maximum-ratio combing shown in disclosure exemplary embodiment, such as Fig. 8 institute
Show, which includes:
5th acquisition submodule 3041, for obtaining the maximum quality of reception from all qualities of reception of the cell；
6th determines submodule 3042, for determining third screening ginseng according to the maximum quality of reception and the second parameter preset
Number；
Second screening submodule 3043, for filtering out the Target cell from the cell according to the third screening parameter.
Using above-mentioned apparatus, by being screened to the multipath in each cell, thus by the multipath after screening to small
Area carries out the assessment of the quality of reception, and is filtered to obtain Target cell to cell according to the quality of reception, so that Target cell is joined
With the detection of maximum-ratio combing, in this way, improving the reliability of the maximum-ratio combing of RAKE receiver, and communication matter is improved
Amount.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
Fig. 9 is the block diagram of a kind of electronic equipment 900 shown according to an exemplary embodiment.As shown in figure 9, the electronics is set
Standby 900 may include: processor 901, memory 902.The electronic equipment 900 can also include multimedia component 903, input/
Export one or more of (I/O) interface 904 and communication component 905.
Wherein, processor 901 is used to control the integrated operation of the electronic equipment 900, to complete above-mentioned maximum-ratio combing
Detection method in all or part of the steps.Memory 902 is for storing various types of data to support to set in the electronics
Standby 900 operation, these data for example may include any application or method for operating on the electronic equipment 900
Instruction and the relevant data of application program.The memory 902 can be by any kind of volatibility or non-volatile memories
Equipment or their combination are realized, such as static random access memory (Static Random Access Memory, letter
Claim SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only
Memory, abbreviation EEPROM), Erasable Programmable Read Only Memory EPROM (Erasable Programmable Read-Only
Memory, abbreviation EPROM), programmable read only memory (Programmable Read-Only Memory, abbreviation PROM), only
It reads memory (Read-Only Memory, abbreviation ROM), magnetic memory, flash memory, disk or CD.Multimedia component
903 may include screen and audio component.Wherein screen for example can be touch screen, and audio component is for exporting and/or inputting
Audio signal.For example, audio component may include a microphone, microphone is for receiving external audio signal.Institute is received
Audio signal can be further stored in memory 902 or be sent by communication component 905.Audio component further includes at least one
A loudspeaker is used for output audio signal.I/O interface 904 provides interface between processor 901 and other interface modules, on
Stating other interface modules can be keyboard, mouse, button etc..These buttons can be virtual push button or entity button.Communication
Component 905 is for carrying out wired or wireless communication between the electronic equipment 900 and other equipment.Wireless communication, such as Wi-Fi,
Bluetooth, near-field communication (Near Field Communication, abbreviation NFC), 2G, 3G or 4G or they one of or it is several
The combination of kind, therefore the corresponding communication component 905 may include: Wi-Fi module, bluetooth module, NFC module.
In one exemplary embodiment, electronic equipment 900 can be by one or more application specific integrated circuit
(Application Specific Integrated Circuit, abbreviation ASIC), digital signal processor (Digital
Signal Processor, abbreviation DSP), digital signal processing appts (Digital Signal Processing Device,
Abbreviation DSPD), programmable logic device (Programmable Logic Device, abbreviation PLD), field programmable gate array
(Field Programmable Gate Array, abbreviation FPGA), controller, microcontroller, microprocessor or other electronics member
Part is realized, for executing the detection method of above-mentioned maximum-ratio combing.
In a further exemplary embodiment, a kind of computer readable storage medium including program instruction is additionally provided, it should
The step of detection method of above-mentioned maximum-ratio combing is realized when program instruction is executed by processor.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (24)
1. a kind of detection method of maximum-ratio combing, which is characterized in that be applied to receiver, comprising:
Obtain the corresponding sampled point energy value of multipath in each cell of activation collection；
Destination path is determined from the multipath according to the sampled point energy value；
The quality of reception of each cell is obtained by the sampled point energy value of the destination path；
Target cell is filtered out from the cell according to the quality of reception, and receiver is carried out by the Target cell
The detection of maximum-ratio combing.
2. the method according to claim 1, wherein multipath is corresponding in each cell for obtaining activation collection
Sampled point energy value includes:
The window center of the search window of each of the activation collection cell is determined according to history samples point energy value；
Determine deviation post of the multipath relative to the window center described in each cell；
Coherent channel estimation is carried out by the deviation post and incoherent channel estimation successively obtains the first estimated value and second
Estimated value, and the corresponding sampled point energy value of the multipath is obtained according to first estimated value and second estimated value.
3. the method according to claim 1, wherein it is described according to the sampled point energy value from the multipath
Determine that destination path includes:
At least one initial path is filtered out from the multipath according to the sampled point energy value；
The destination path is determined according to the initial path.
4. according to the method described in claim 3, it is characterized in that, it is described according to the sampled point energy value from the multipath
Filtering out at least one initial path includes:
The multipath for determining that the sampled point energy value is more than or equal to the first screening parameter is the initial path；Or,
The multipath that preset quantity is determined according to the sequence of the sampled point energy value from big to small is the initial path；Or,
The multipath for determining that the sampled point energy value is more than or equal to the first screening parameter is initial path to be determined, and according to
The sequence of the sampled point energy value from big to small determines that the initial path to be determined of the preset quantity is the initial path.
5. according to the method described in claim 4, it is characterized in that, being greater than or waiting in the determination sampled point energy value
In the first screening parameter multipath be the initial path before, further includes:
Maximum sampled point energy value is determined from the sampled point energy value；
First screening parameter is determined according to the maximum sampled point energy value.
6. according to the described in any item methods of claim 3-5, which is characterized in that in the initial path include multiple paths
When, it is described to determine that the destination path includes: according to the initial path
Obtain the energy failures region of each initial path；The energy failures region is the sampled point of the initial path
Energy value is in the region of failure state；
Determine whether the initial path is located at outside the energy failures region；
When the initial path is located at outside the energy failures region, determine that the initial path is path to be determined；
The destination path is determined according to the path to be determined.
7. according to the method described in claim 6, it is characterized in that, the energy failures area for obtaining each initial path
Domain includes: the energy failures region that each initial path is obtained by failed areas obtaining step；
The failed areas obtaining step includes:
The target initial path bigger than the sampled point energy value of current initial path is obtained from multiple initial paths；
The energy failures region of the current initial path is determined according to the target initial path.
8. the method according to the description of claim 7 is characterized in that described determine the target road according to the path to be determined
Diameter includes:
Obtain the noise region in all paths to be determined；
Noise mean value is obtained according to sampled point energy value in the noise region；
The destination path is obtained from the path to be determined according to the noise mean value.
9. according to the method described in claim 8, it is characterized in that, it is described according to the noise mean value from the path to be determined
It is middle to obtain the destination path and include:
The second screening parameter is determined according to the noise mean value and the first parameter preset；
The destination path is obtained from the path to be determined according to second screening parameter.
10. method according to claim 8 or claim 9, which is characterized in that the sampled point energy by the destination path
The quality of reception that value obtains each cell includes:
Obtain whole sampled point energy values of the destination paths and value；
Obtain the total quantity of all destination paths；
The quality of reception of each cell is obtained according to described and value and the total quantity and the noise mean value.
11. the method according to claim 1, wherein described sieve from the cell according to the quality of reception
Selecting Target cell includes:
The maximum quality of reception is obtained from all qualities of reception of the cell；
Third screening parameter is determined according to the maximum quality of reception and the second parameter preset；
The Target cell is filtered out from the cell according to the third screening parameter.
12. a kind of detection device of maximum-ratio combing, which is characterized in that be applied to receiver, comprising:
First obtains module, the corresponding sampled point energy value of multipath in each cell for obtaining activation collection；
Determining module, for determining destination path from the multipath according to the sampled point energy value；
Second obtains module, and the reception matter of each cell is obtained for the sampled point energy value by the destination path
Amount；
Processing module, for filtering out Target cell from the cell according to the quality of reception, and it is small by the target
Area carries out the detection of the maximum-ratio combing of receiver.
13. device according to claim 12, which is characterized in that described first, which obtains module, includes:
First determines submodule, for determining the search of each of the activation collection cell according to history samples point energy value
The window center of window；
Second determines submodule, for determining bits of offset of the multipath relative to the window center described in each cell
It sets；
First acquisition submodule is successively obtained for carrying out coherent channel estimation and incoherent channel estimation by the deviation post
To the first estimated value and the second estimated value, and the multipath is obtained according to first estimated value and second estimated value and is corresponded to
Sampled point energy value.
14. device according to claim 12, which is characterized in that the determining module includes:
First screening submodule, for filtering out at least one initial road from the multipath according to the sampled point energy value
Diameter；
Third determines submodule, for determining the destination path according to the initial path.
15. device according to claim 14, which is characterized in that the first screening submodule, for being adopted described in determination
The multipath that sampling point energy value is more than or equal to the first screening parameter is the initial path；Or,
The multipath that preset quantity is determined according to the sequence of the sampled point energy value from big to small is the initial path；Or,
The multipath for determining that the sampled point energy value is more than or equal to the first screening parameter is initial path to be determined, and according to
The sequence of the sampled point energy value from big to small determines that the initial path to be determined of the preset quantity is the initial path.
16. device according to claim 15, which is characterized in that the determining module further include:
4th determines submodule, for determining maximum sampled point energy value from the sampled point energy value；
5th determines submodule, for determining first screening parameter according to the maximum sampled point energy value.
17. the described in any item devices of 4-16 according to claim 1, which is characterized in that in the initial path include multiple roads
When diameter, the third determines submodule, for obtaining the energy failures region of each initial path；The energy failures area
Domain is that the sampled point energy value of the initial path is in the region of failure state；
Determine whether the initial path is located at outside the energy failures region；
When the initial path is located at outside the energy failures region, determine that the initial path is path to be determined；
The destination path is determined according to the path to be determined.
18. device according to claim 17, which is characterized in that the third determines submodule, for passing through failure area
Domain obtaining step obtains the energy failures region of each initial path；
The failed areas obtaining step includes:
The target initial path bigger than the sampled point energy value of current initial path is obtained from multiple initial paths；
The energy failures region of the current initial path is determined according to the target initial path.
19. device according to claim 18, which is characterized in that the third determines submodule, for obtaining whole institutes
State the noise region in path to be determined；
Noise mean value is obtained according to sampled point energy value in the noise region；
The destination path is obtained from the path to be determined according to the noise mean value.
20. device according to claim 19, which is characterized in that the third determines submodule, for making an uproar according to
Sound mean value and the first parameter preset determine the second screening parameter；
The destination path is obtained from the path to be determined according to second screening parameter.
21. device described in 9 or 20 according to claim 1, which is characterized in that described second, which obtains module, includes:
Second acquisition submodule, for obtain whole sampled point energy values of the destination paths and value；
Third acquisition submodule, for obtaining the total quantity of all destination paths；
4th acquisition submodule is each described small for being obtained according to described and value and the total quantity and the noise mean value
The quality of reception in area.
22. device according to claim 11, which is characterized in that the processing module includes:
5th acquisition submodule, for obtaining the maximum quality of reception from all qualities of reception of the cell；
6th determines submodule, for determining third screening parameter according to the maximum quality of reception and the second parameter preset；
Second screening submodule, for filtering out the Target cell from the cell according to the third screening parameter.
23. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The step of any one of claim 1-11 the method is realized when execution.
24. a kind of electronic equipment characterized by comprising
Memory is stored thereon with computer program；And
One or more processor realizes any one of claim 1-11 institute for executing the program in the memory
State method.
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