CN105553534B - Signal processing method, device and baseband processing chip - Google Patents
Signal processing method, device and baseband processing chip Download PDFInfo
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- CN105553534B CN105553534B CN201510907400.5A CN201510907400A CN105553534B CN 105553534 B CN105553534 B CN 105553534B CN 201510907400 A CN201510907400 A CN 201510907400A CN 105553534 B CN105553534 B CN 105553534B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
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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
- H04B7/0802—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 antenna selection
- H04B7/0822—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 antenna selection according to predefined selection scheme
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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
- H04B7/0802—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 antenna selection
- H04B7/0825—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 antenna selection with main and with auxiliary or diversity antennas
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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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Abstract
The embodiment of the invention discloses a kind of signal processing methods, device and baseband processing chip, there are two types of operating modes for baseband processing chip tool, it is related that the signal that local primary synchronization signal sequence respectively receives primary antenna access to the signal that auxiliary antennas paths receive carries out sliding, and obtained correlated results is handled, automatically determine the operating mode of baseband processing chip, realization allows baseband processing chip adaptive antenna operating mode, to which designer is when carrying out system design, it is single antenna operating mode or double antenna operating mode that baseband processing chip need not be paid close attention to again, to provide convenience to designer.
Description
Technical field
The present invention relates to signal processing technology fields, more specifically to a kind of signal processing method, device and base band
Handle chip.
Background technique
In the practical application of LTE system, how to reduce terminal cost is always industry manufacturer in carry out system design
The factor of consideration, the use occasion of especially some dedicated networks, it might even be possible to sacrifice some performances to bring lower product
Cost.The possible receiving antenna number for being designed as reducing terminal of one kind of cost is reduced, so that antenna is brought, simulation and radio frequency
The cost of device, modulus switching device reduces.
As shown in Figure 1, being the basic structure schematic diagram of LTE communication module, including baseband processing chip, analog radio frequency device
Part, A/D converter, digital analog converter etc..Wherein, main body antennas paths are responsible for sending and receiving data, and auxiliary antennas paths are responsible for receiving number
According to.If electronic equipment is the electronic equipment of double antenna operating mode, two antennas paths are needed while being received, if electronic equipment
For the electronic equipment of single antenna operating mode, then in order to reduce cost, auxiliary antennas paths in LTE communication module (dotted line in Fig. 1
Shown in frame) it is not present, that is, there was only antennas paths all the way, at this point, setting if electronic equipment is still used by two receiving antennas
The baseband processing chip of meter, then baseband processing chip will be calculated still by two antenna receiving paths, by the handling capacity for the system that reduces
Or sensitivity, therefore, it is necessary to select the baseband processing chip designed by a receiving antenna.
As it can be seen that designer is during designing electronic equipment, it is necessary to select base band corresponding with antenna reception pattern
Chip is handled, the design of electron equipment is made troubles.Inventor has found in the implementation of the present invention, if Base-Band Processing core
Piece can adaptive antenna operating mode, paying close attention to baseband processing chip without designer is designed by two receiving antennas
Chip, or by single receiving antenna design chip, convenience will be brought to designer.
Therefore, baseband processing chip adaptive antenna operating mode how to be allowed to become urgent problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of signal processing method, device and baseband processing chip, to allow Base-Band Processing core
Piece adaptive antenna operating mode.
To achieve the above object, the present invention provides the following technical scheme that
A kind of signal processing method, be applied to baseband processing chip, the baseband processing chip have primary antenna access and
Auxiliary antennas paths, which comprises
The signal and the auxiliary antenna received respectively to the primary antenna access using local primary synchronization signal sequence is logical
It is related that the signal that road receives carries out sliding, obtain several correlated results corresponding with the primary antenna access and with the auxiliary day
The corresponding several correlated results of line access；
Calculate the performance number of each sliding correlated results；
Determine corresponding first sliding position of corresponding with primary antenna access maximum power value, and with the auxiliary day
Corresponding second sliding position of the corresponding maximum power value of line access；
If the distance between first sliding position and second sliding position are greater than preset threshold, by the base band
Processing chip is configured to single antenna operating mode, otherwise, configures double antenna operating mode for the baseband processing chip.
The above method, it is preferred that the baseband processing chip uses maximum-ratio combing receiver architecture, described by the base
Tape handling chip is configured to single antenna operating mode
The merging coefficient of the primary antenna access is set to 1, the merging coefficient of the auxiliary antennas paths is set to 0.
The above method, it is preferred that the baseband processing chip uses maximum-ratio combing receiver architecture, described by the base
Tape handling chip is configured to double antenna operating mode
Determine corresponding with primary antenna access automatic gain control circuit the first yield value and with the auxiliary antenna
Second yield value of the corresponding automatic gain control circuit of access；
Based on first yield value and second yield value, merging coefficient and the institute of the primary antenna access are determined
State the merging coefficient of auxiliary antennas paths.
The above method, it is preferred that it is described to be based on first yield value and second yield value, determine the primary antenna
The merging coefficient of access and the merging coefficient of the auxiliary antennas paths include:
If first yield value is greater than or equal to second yield value, the merging coefficient of the primary antenna access is institute
The inverse of the absolute value of the first yield value and the second yield value difference is stated, the merging coefficient of the auxiliary antennas paths is 1；
If first yield value is less than second yield value, the merging coefficient of the primary antenna access is 1, described auxiliary
The inverse for merging the absolute value that coefficient is first yield value and the second yield value difference of antennas paths.
The above method, it is preferred that described that the primary antenna access is received respectively using local primary synchronization signal sequence
Signal carry out that sliding is related to include: to the signal that the auxiliary antennas paths receive
When carrying out sliding correlation using the signal that the local primary synchronization signal sequence receives the primary antenna access,
The starting sliding position of sliding window is located at the start bit of symbol where PSS sequence in the signal that the primary antenna access receives
The position of N number of point before setting；The termination sliding position of the sliding window is located at the signal that the primary antenna access receives
The position of N number of point after the initial position of symbol where middle PSS sequence；
When carrying out sliding correlation using the signal that the local primary synchronization signal sequence receives the auxiliary antennas paths,
The starting sliding position of sliding window is located at the start bit of symbol where PSS sequence in the signal that the auxiliary antennas paths receive
The position of N number of point before setting；The termination sliding position of the sliding window is located at the signal that the auxiliary antennas paths receive
The position of N number of point after the initial position of symbol where middle PSS sequence.
A kind of signal processing apparatus, be applied to baseband processing chip, the baseband processing chip have primary antenna access and
Auxiliary antennas paths, described device include:
Slide correlation module, the letter for receiving respectively to the primary antenna access using local primary synchronization signal sequence
It is related number to carry out sliding to the signal that the auxiliary antennas paths receive, and obtains corresponding several related to the primary antenna access
And several correlated results corresponding with the auxiliary antennas paths as a result；
Computing module, for calculating the performance number of each sliding correlated results；
First determining module is used for corresponding first sliding position of determining maximum power value corresponding with the primary antenna,
And corresponding second sliding position of corresponding with auxiliary antenna maximum power value；
Second determining module, if being greater than for the distance between first sliding position and second sliding position pre-
If threshold value, single antenna operating mode is configured by the baseband processing chip, otherwise, is configured the baseband processing chip to double
Antenna operating mode.
Above-mentioned apparatus, it is preferred that the baseband processing chip uses maximum-ratio combing receiver architecture, by the base band
In terms of processing chip is configured to single antenna operating mode, second determining module is specifically used for,
The merging coefficient of the primary antenna access is set to 1, the merging coefficient of the auxiliary antennas paths is set to 0.
Above-mentioned apparatus, it is preferred that the baseband processing chip uses maximum-ratio combing receiver architecture, by the base band
In terms of processing chip is configured to double antenna operating mode, second determining module is specifically used for,
Determine corresponding with primary antenna access automatic gain control circuit the first yield value and with the auxiliary antenna
Second yield value of the corresponding automatic gain control circuit of access；
Based on first yield value and second yield value, merging coefficient and the institute of the primary antenna access are determined
State the merging coefficient of auxiliary antennas paths.
Above-mentioned apparatus, it is preferred that be based on first yield value and second yield value, determining that the primary antenna is logical
In terms of the merging coefficient for merging coefficient and the auxiliary antennas paths on road, second determining module is specifically used for,
If first yield value is greater than or equal to second yield value, the merging coefficient of the primary antenna access is institute
The inverse of the absolute value of the first yield value and the second yield value difference is stated, the merging coefficient of the auxiliary antennas paths is 1；
If first yield value is less than second yield value, the merging coefficient of the primary antenna access is 1, described auxiliary
The inverse for merging the absolute value that coefficient is first yield value and the second yield value difference of antennas paths.
A kind of baseband processing chip, at signal described in primary antenna access, auxiliary antennas paths and any one as above
Manage device.
By above scheme it is found that a kind of signal processing method, device and baseband processing chip provided by the present application, utilize
The signal that the signal and auxiliary antennas paths that local primary synchronization signal sequence respectively receives primary antenna access receive is slided
Dynamic correlation calculates the performance number of each sliding correlated results；Determine corresponding with primary antenna access maximum power value corresponding the
One sliding position, and corresponding second sliding position of maximum power value corresponding with auxiliary antennas paths；If the first sliding position
The distance between second sliding position is greater than preset threshold, configures single antenna operating mode for baseband processing chip, otherwise,
Double antenna operating mode is configured by baseband processing chip.That is, signal processing method provided in an embodiment of the present invention, dress
It sets and baseband processing chip, there are two types of operating modes for baseband processing chip tool, by local primary synchronization signal sequence respectively to main day
The signal that line access receives carries out that sliding is related to the signal that auxiliary antennas paths receive, and carries out to obtained correlated results
Processing, automatically determines the operating mode of baseband processing chip, and realization allows baseband processing chip adaptive antenna operating mode, thus
Designer is when carrying out system design, it is not necessary to which paying close attention to baseband processing chip again is single antenna operating mode or double antenna work
Mode, to provide convenience to designer.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the basic structure schematic diagram of general LTE communication module；
Fig. 2 is a kind of implementation flow chart of signal processing method provided by the embodiments of the present application；
Fig. 3 is a kind of realization stream provided by the embodiments of the present application for configuring baseband processing chip to double antenna operating mode
Figure；
Fig. 4 is a kind of structural schematic diagram of signal processing apparatus provided by the embodiments of the present application.
Specification and claims and term " first " in above-mentioned attached drawing, " second ", " third " " the 4th " etc. (if
In the presence of) it is part for distinguishing similar, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that embodiments herein described herein can be in addition to illustrating herein
Sequence in addition is implemented.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
Signal processing method and device provided in an embodiment of the present invention are applied to baseband processing chip, the baseband processing chip
It is integrated with primary antenna access and auxiliary antennas paths, wherein primary antenna access is responsible for sending and receiving data, and auxiliary antennas paths are responsible for receiving number
According to.
Referring to Fig. 2, Fig. 2 is a kind of implementation flow chart of signal processing method provided by the embodiments of the present application, can wrap
It includes:
Step S21: primary antenna access is received respectively using locally generated primary synchronization signal sequence (abbreviation PSS)
It is related that signal and the signal that auxiliary antennas paths receive carry out sliding, obtain several correlated results corresponding with primary antenna access and
Several correlated results corresponding with auxiliary antennas paths；
Local primary synchronization signal sequence is locally generated primary synchronization signal sequence.It is not only sharp in the embodiment of the present invention
Sliding correlation is carried out to the signal that primary antenna access receives with local primary synchronization signal sequence, also utilizes local primary synchronization signal
It is related that sequence carries out sliding to the signal that auxiliary antennas paths receive.
When carrying out sliding correlation, the length of sliding window is the length of local PSS, as shown in Figure 1, baseband processing chip from
The signal that primary antenna access receives signal and auxiliary antennas paths receive is the signal after being sampled by A/D converter,
That is digital signal.Therefore, in the embodiment of the present invention, sliding window is slided in the signal received by sampled point, and every sliding is primary,
The signal received that local PSS and sliding window are covered carries out relevant calculation.
Due to there are three locally generated PSS, in the position of each sliding window, each local PSS with sliding
The signal that window was covered receive carries out a relevant calculation, that is to say, that for the signal that primary antenna access receives,
Each sliding window position carries out relevant calculation three times, similarly, for the signal that auxiliary antennas paths receive, each sliding window
Mouth position also carries out relevant calculation three times.
Step S22: the performance number of each sliding correlated results is calculated；
To with relevant calculation each time as a result, calculate correlated results performance number.Specifically, the power of correlated results
Value can be square of the mould of correlated results.
Step S23: determining corresponding first sliding position of corresponding with primary antenna access maximum power value, and with auxiliary day
Corresponding second sliding position of the corresponding maximum power value of line access；
In the embodiment of the present invention, if determining maximum power from the performance number of dry-charged plates correlated results corresponding with primary antenna
Value, and if determining maximum power value from the performance number of dry-charged plates correlated results corresponding with auxiliary antennas paths.
Corresponding first sliding position of corresponding with primary antenna access maximum power value may be considered logical by primary antenna
The initial position of symbol where primary synchronization signal sequence in the LTE subframe that road receives.Maximum work corresponding with auxiliary antennas paths
Rate, which is worth corresponding second sliding position, may be considered primary synchronization signal sequence in the LTE subframe received by auxiliary antennas paths
The initial position of place symbol.
Step S24: if the distance between the first sliding position and the second sliding position are greater than preset threshold, by Base-Band Processing
Chip is configured to single antenna operating mode, otherwise, configures double antenna operating mode for baseband processing chip.
If the distance between the first sliding position and the second sliding position are greater than preset threshold, illustrate baseband processing chip
Auxiliary antenna receiving path does not have the devices such as external antenna, analog radio frequency device and A/D converter, and only outside primary antenna access
Connect the devices such as antenna, analog radio frequency device and A/D converter.
If the distance between the first sliding position and the second sliding position are less than or equal to preset threshold, illustrate Base-Band Processing
The devices such as the auxiliary antenna receiving path of chip and the equal external antenna of primary antenna access, analog radio frequency device and A/D converter.
Optionally, preset threshold can be 20 sampled points.
It, can also be with that is, baseband processing chip can both work in single antenna operating mode in the embodiment of the present invention
Work is in double antenna operating mode.Specific works are received in which kind of mode, by baseband processing chip according in primary antenna access
Signal in received in the initial position (i.e. the first sliding position) of symbol and auxiliary antennas paths where primary synchronization signal sequence
Signal in the distance between initial position (i.e. the second sliding position) of symbol where primary synchronization signal sequence determine.If should be away from
From preset threshold is greater than, baseband processing chip is determined with single antenna mode of operation, otherwise, it determines baseband processing chip is with double
Antenna operating mode work.
Signal processing method provided in an embodiment of the present invention, there are two types of operating modes for baseband processing chip tool, by this landlord
It is related that the signal that synchronous signal sequence respectively receives primary antenna access and the signal that auxiliary antennas paths receive carry out sliding,
And obtained correlated results is handled, automatically determine the operating mode of baseband processing chip, realization allows baseband processing chip
Adaptive antenna operating mode, so that designer is when carrying out system design, it is not necessary to which paying close attention to baseband processing chip again is Dan Tian
Line operating mode or double antenna operating mode, to provide convenience to designer.
Optionally, in the embodiment of the present invention, baseband processing chip uses maximum-ratio combing (maximum ratio
Combining, MRC) receiver architecture.
In maximum-ratio combing receiver architecture, need to obtain the merging of the merging coefficient and auxiliary antennas paths of primary antenna access
Coefficient, so that the signal that the signal received to primary antenna access and auxiliary antennas paths receive merges processing.
It optionally, can be with by a kind of implementation for stating baseband processing chip and being configured to single antenna operating mode are as follows:
The merging coefficient of primary antenna access is set to 1, the merging coefficient of auxiliary antennas paths is set to 0.
That is, baseband processing chip is still pressed two antenna receiving paths and is calculated in the embodiment of the present invention, but due to
The merging coefficient of auxiliary antennas paths is set to 0, is equivalent to auxiliary antennas paths side and is not received by signal, baseband processing chip is equivalent to
It is calculated by single antenna access, the handling capacity and sensitivity of system will not be reduced.
Optionally, a kind of realization flow graph of double antenna operating mode is configured as shown in figure 3, can be with by baseband processing chip
Include:
Step S31: determining the first yield value of corresponding with primary antenna access automatic gain control circuit, and determine with it is auxiliary
Second yield value of the corresponding automatic gain control circuit of antennas paths；
Step S32: it is based on the first yield value and the second yield value, determines the merging coefficient and auxiliary antenna of primary antenna access
The merging coefficient of access.
In the embodiment of the present invention, two-way is determined according to the yield value of the automatic gain control circuit of two-way antenna receiving path
The merging coefficient of antenna receiving path.
Optionally, it is based on the first yield value and the second yield value, determines the merging coefficient and auxiliary antenna of primary antenna access
A kind of implementation of the merging coefficient of access can be with are as follows:
If the first yield value is greater than or equal to the second yield value, the merging coefficient of primary antenna access are as follows: the first yield value
With the inverse of the absolute value of the second yield value difference；The merging coefficient of auxiliary antennas paths is 1；
The merging coefficient formula of primary antenna access can indicate are as follows:
α=1/ | gain0-gain1 | (1)
Wherein, α is the merging coefficient of main antennas paths, and gain0 is the first yield value, and gain1 is the second yield value.
If the first yield value is 1 less than the second yield value, the merging coefficient of primary antenna access；The merging of auxiliary antennas paths
Coefficient are as follows: the inverse of the first yield value and the absolute value of the second yield value difference.
The merging coefficient formula of auxiliary antennas paths can indicate are as follows:
β=1/ | gain0-gain1 | (2)
Wherein, supplemented by β antennas paths merging coefficient, gain0 be the first yield value, gain1 be the second yield value.
Optionally, signal primary antenna access received respectively using local primary synchronization signal sequence and auxiliary antennas paths
The signal received slide relevant specific implementation can be with are as follows:
When carrying out sliding correlation to the signal that primary antenna access receives using local primary synchronization signal sequence, sliding window
Starting sliding position be located at PSS sequence in the signal that primary antenna access receives where symbol initial position before it is N number of
The position of point；The termination sliding position of sliding window is located in the signal that primary antenna access receives symbol where PSS sequence
The position of N number of point after initial position；
When carrying out sliding correlation to the signal that auxiliary antennas paths receive using local primary synchronization signal sequence, sliding window
Starting sliding position be located at PSS sequence in the signal that auxiliary antennas paths receive where symbol initial position before it is N number of
The position of point；The termination sliding position of sliding window is located in the signal that auxiliary antennas paths receive symbol where PSS sequence
The position of N number of point after initial position.
That is, in the embodiment of the present invention, primary antenna access is received using local primary synchronization signal sequence letter
It number carries out sliding relevant mode, be slided with the signal received using local primary synchronization signal sequence to auxiliary antennas paths
Relevant mode is identical.Sliding position each N number of sampling before and after the initial position of symbol where PSS sequence in the signal received
The position of point, total 2N sliding position.For example, in the LTE subframe received, if the initial position of symbol where PSS sequence
For m-th sampled point, then in the embodiment of the present invention, sliding window slides the M-N sampled point since LTE subframe, next
A sliding position is the M-N+1 sampled point, next one sampled point is M-N+1 sampled point, and so on, until sliding window
Mouth slides into the M+N sampled point and terminates sliding.
Optionally, relevant calculation can be carried out by following formula:
Wherein, subscriptRXFor distinguishing primary antenna access and auxiliary antennas paths, such asRX=0Indicate primary antenna access,RX=1It indicates
Auxiliary antennas paths；Nid2 indicates the index of the primary synchronization signal of current area, value 0,1,2；Local_PSS is locally generated
Primary synchronization signal sequence；Local_PSS*(Nid2, i) indicates that call number is the i-th of the local primary synchronization signal sequence of Nid2
The conjugation value of a value；Rx_Data is the time-domain signal sequence that antenna receives；Corr_Result is correlated results；N is to slide
The initial position of dynamic window, value can be 0~199, and totally 200 points, can choose the LTE subframe being currently received in practice
Preceding 100 sampled points of symbol initial position where middle PSS are to rear 100 sampled points.
Corresponding with embodiment of the method, the embodiment of the present invention also provides a kind of signal processing apparatus, and the embodiment of the present invention mentions
A kind of structural schematic diagram of the signal processing apparatus of confession is as shown in figure 4, may include:
Slide correlation module 41, computing module 42, the first determining module 43 and the second determining module 44；Wherein,
The signal that sliding correlation module 41 is used to respectively receive primary antenna access using local primary synchronization signal sequence
It is related to carry out sliding to the signal that auxiliary antennas paths receive, obtain several correlated results corresponding with primary antenna access and with it is auxiliary
The corresponding several correlated results of antennas paths；
Local primary synchronization signal sequence is locally generated primary synchronization signal sequence.It is not only sharp in the embodiment of the present invention
Sliding correlation is carried out to the signal that primary antenna access receives with local primary synchronization signal sequence, also utilizes local primary synchronization signal
It is related that sequence carries out sliding to the signal that auxiliary antennas paths receive.
When carrying out sliding correlation, the length of sliding window is the length of local PSS, as shown in Figure 1, baseband processing chip from
The signal that primary antenna access receives signal and auxiliary antennas paths receive is the signal after being sampled by A/D converter,
That is digital signal.Therefore, in the embodiment of the present invention, sliding window is slided in the signal received by sampled point, and every sliding is primary,
The signal received that local PSS and sliding window are covered carries out relevant calculation.
Due to there are three locally generated PSS, in the position of each sliding window, each local PSS with sliding
The signal that window was covered receive carries out a relevant calculation, that is to say, that for the signal that primary antenna access receives,
Each sliding window position carries out relevant calculation three times, similarly, for the signal that auxiliary antennas paths receive, each sliding window
Mouth position also carries out relevant calculation three times.
Computing module 42 is used to calculate the performance number of each sliding correlated results；
To with relevant calculation each time as a result, calculate correlated results performance number.Specifically, the power of correlated results
Value can be square of the mould of correlated results.
First determining module 43 is used for corresponding first sliding position of determining maximum power value corresponding with primary antenna, and
Corresponding second sliding position of corresponding with auxiliary antenna maximum power value；
In the embodiment of the present invention, if determining maximum power from the performance number of dry-charged plates correlated results corresponding with primary antenna
Value, and if determining maximum power value from the performance number of dry-charged plates correlated results corresponding with auxiliary antennas paths.
Corresponding first sliding position of corresponding with primary antenna access maximum power value may be considered logical by primary antenna
The initial position of symbol where primary synchronization signal sequence in the LTE subframe that road receives.Maximum work corresponding with auxiliary antennas paths
Rate, which is worth corresponding second sliding position, may be considered primary synchronization signal sequence in the LTE subframe received by auxiliary antennas paths
The initial position of place symbol.
If the second determining module 44 is greater than preset threshold for the distance between the first sliding position and the second sliding position,
Single antenna operating mode is configured by baseband processing chip, otherwise, configures double antenna operating mode for baseband processing chip.
If the distance between the first sliding position and the second sliding position are greater than preset threshold, illustrate baseband processing chip
Auxiliary antenna receiving path does not have the devices such as external antenna, analog radio frequency device and A/D converter, and only outside primary antenna access
Connect the devices such as antenna, analog radio frequency device and A/D converter.
If the distance between the first sliding position and the second sliding position are less than or equal to preset threshold, illustrate Base-Band Processing
The devices such as the auxiliary antenna receiving path of chip and the equal external antenna of primary antenna access, analog radio frequency device and A/D converter.
Optionally, preset threshold can be 20 sampled points.
It, can also be with that is, baseband processing chip can both work in single antenna operating mode in the embodiment of the present invention
Work is in double antenna operating mode.Specific works are received in which kind of mode, by baseband processing chip according in primary antenna access
Signal in received in the initial position (i.e. the first sliding position) of symbol and auxiliary antennas paths where primary synchronization signal sequence
Signal in the distance between initial position (i.e. the second sliding position) of symbol where primary synchronization signal sequence determine.If should be away from
From preset threshold is greater than, baseband processing chip is determined with single antenna mode of operation, otherwise, it determines baseband processing chip is with double
Antenna operating mode work.
Signal processing apparatus provided in an embodiment of the present invention, there are two types of operating modes for baseband processing chip tool, by this landlord
It is related that the signal that synchronous signal sequence respectively receives primary antenna access and the signal that auxiliary antennas paths receive carry out sliding,
And obtained correlated results is handled, automatically determine the operating mode of baseband processing chip, realization allows baseband processing chip
Adaptive antenna operating mode, so that designer is when carrying out system design, it is not necessary to which paying close attention to baseband processing chip again is Dan Tian
Line operating mode or double antenna operating mode, to provide convenience to designer.
Optionally, in the embodiment of the present invention, baseband processing chip uses maximum-ratio combing (maximum ratio
Combining, MRC) receiver architecture.
In maximum-ratio combing receiver architecture, need to obtain the merging of the merging coefficient and auxiliary antennas paths of primary antenna access
Coefficient, so that the signal that the signal received to primary antenna access and auxiliary antennas paths receive merges processing.
Optionally, in terms of configuring single antenna operating mode for baseband processing chip, the second determining module 44 specifically may be used
To be used for,
The merging coefficient of primary antenna access is set to 1, the merging coefficient of auxiliary antennas paths is set to 0.
That is, baseband processing chip is still pressed two antenna receiving paths and is calculated in the embodiment of the present invention, but due to
The merging coefficient of auxiliary antennas paths is set to 0, is equivalent to auxiliary antennas paths side and is not received by signal, baseband processing chip is equivalent to
It is calculated by single antenna access, the handling capacity and sensitivity of system will not be reduced.
Optionally, in terms of configuring double antenna operating mode for baseband processing chip, the second determining module 44 specifically may be used
To be used for,
Determine the first yield value of automatic gain control circuit corresponding with primary antenna access, and determining and auxiliary antennas paths
Second yield value of corresponding automatic gain control circuit；
Based on the first yield value and the second yield value, the conjunction for merging coefficient and auxiliary antennas paths of primary antenna access is determined
And coefficient.
In the embodiment of the present invention, two-way is determined according to the yield value of the automatic gain control circuit of two-way antenna receiving path
The merging coefficient of antenna receiving path.
Optionally, it is being based on the first yield value and the second yield value, is determining the merging coefficient and auxiliary day of primary antenna access
In terms of the merging coefficient of line access, the second determining module 44 specifically can be used for,
If the first yield value is greater than or equal to the second yield value, the merging coefficient of primary antenna access is the first yield value and the
The inverse of the absolute value of two yield value differences, the merging coefficient of auxiliary antennas paths are 1；
If the first yield value is 1 less than the second yield value, the merging coefficient of primary antenna access, the merging system of auxiliary antennas paths
Number is the inverse of the absolute value of the first yield value and the second yield value difference.
Optionally, sliding correlation module 41 specifically can be used for, using local primary synchronization signal sequence to primary antenna access
When the signal received carries out sliding correlation, the starting sliding position of sliding window is located in the signal that primary antenna access receives
The position of N number of point before the initial position of symbol where PSS sequence；The termination sliding position of sliding window is logical positioned at primary antenna
The position of N number of point in the signal that road receives after the initial position of symbol where PSS sequence；
When carrying out sliding correlation to the signal that auxiliary antennas paths receive using local primary synchronization signal sequence, sliding window
Starting sliding position be located at PSS sequence in the signal that auxiliary antennas paths receive where symbol initial position before it is N number of
The position of point；The termination sliding position of sliding window is located in the signal that auxiliary antennas paths receive symbol where PSS sequence
The position of N number of point after initial position.
That is, in the embodiment of the present invention, primary antenna access is received using local primary synchronization signal sequence letter
It number carries out sliding relevant mode, be slided with the signal received using local primary synchronization signal sequence to auxiliary antennas paths
Relevant mode is identical.Sliding position each N number of sampling before and after the initial position of symbol where PSS sequence in the signal received
The position of point, total 2N sliding position.For example, in the LTE subframe received, if the initial position of symbol where PSS sequence
For m-th sampled point, then in the embodiment of the present invention, sliding window slides the M-N sampled point since LTE subframe, next
A sliding position is the M-N+1 sampled point, next one sampled point is M-N+1 sampled point, and so on, until sliding window
Mouth slides into the M+N sampled point and terminates sliding.
A kind of baseband processing chip is also disclosed in the embodiment of the present invention, which has primary antenna access, auxiliary day
Line access and signal processing apparatus as described above.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of signal processing method, it is applied to baseband processing chip, the baseband processing chip has primary antenna access and auxiliary
Antennas paths, which is characterized in that the described method includes:
The signal and the auxiliary antennas paths received respectively to the primary antenna access using local primary synchronization signal sequence is connect
The signal received carries out sliding correlation, obtains several correlated results corresponding with the primary antenna access and leads to the auxiliary antenna
The corresponding several correlated results in road；
Calculate the performance number of each sliding correlated results；
Corresponding first sliding position of determination maximum power value corresponding with the primary antenna access, and it is logical with the auxiliary antenna
Corresponding second sliding position of the corresponding maximum power value in road；
If the distance between first sliding position and second sliding position are greater than preset threshold, by the Base-Band Processing
Chip is configured to single antenna operating mode, otherwise, configures double antenna operating mode for the baseband processing chip.
2. the method according to claim 1, wherein the baseband processing chip uses maximum-ratio combing receiver
Framework, it is described to configure single antenna operating mode for the baseband processing chip and include:
The merging coefficient of the primary antenna access is set to 1, the merging coefficient of the auxiliary antennas paths is set to 0.
3. the method according to claim 1, wherein the baseband processing chip uses maximum-ratio combing receiver
Framework, it is described to configure double antenna operating mode for the baseband processing chip and include:
Determine corresponding with primary antenna access automatic gain control circuit the first yield value and with the auxiliary antennas paths
Second yield value of corresponding automatic gain control circuit；
Based on first yield value and second yield value, the merging coefficient of the primary antenna access and described auxiliary is determined
The merging coefficient of antennas paths.
4. according to the method described in claim 3, it is characterized in that, described be based on first yield value and second gain
Value, the merging coefficient of the merging coefficient and the auxiliary antennas paths that determine the primary antenna access include:
If first yield value is greater than or equal to second yield value, the merging coefficient of the primary antenna access is described the
The inverse of one yield value and the absolute value of the second yield value difference, the merging coefficient of the auxiliary antennas paths are 1；
If first yield value is less than second yield value, the merging coefficient of the primary antenna access is 1, the auxiliary antenna
The inverse for merging the absolute value that coefficient is first yield value and the second yield value difference of access.
5. the method according to claim 1, wherein described utilize local primary synchronization signal sequence respectively to described
The signal that primary antenna access receives carries out that sliding is related to include: to the signal that the auxiliary antennas paths receive
When carrying out sliding correlation using the signal that the local primary synchronization signal sequence receives the primary antenna access, sliding
The initial position of symbol where the starting sliding position of window is located at PSS sequence in the signal that the primary antenna access receives it
The position of preceding N number of point；The termination sliding position of the sliding window is located at PSS in the signal that the primary antenna access receives
The position of N number of point after the initial position of symbol where sequence；
When carrying out sliding correlation using the signal that the local primary synchronization signal sequence receives the auxiliary antennas paths, sliding
The initial position of symbol where the starting sliding position of window is located at PSS sequence in the signal that the auxiliary antennas paths receive it
The position of preceding N number of point；The termination sliding position of the sliding window is located at PSS in the signal that the auxiliary antennas paths receive
The position of N number of point after the initial position of symbol where sequence.
6. a kind of signal processing apparatus, it is applied to baseband processing chip, the baseband processing chip has primary antenna access and auxiliary
Antennas paths, which is characterized in that described device includes:
Slide correlation module, signal for being received respectively to the primary antenna access using local primary synchronization signal sequence and
The signal that the auxiliary antennas paths receive carries out sliding correlation, obtains several correlated results corresponding with the primary antenna access
With several correlated results corresponding with the auxiliary antennas paths；
Computing module, for calculating the performance number of each sliding correlated results；
First determining module is used for corresponding first sliding position of determining maximum power value corresponding with the primary antenna, and
Corresponding second sliding position of corresponding with auxiliary antenna maximum power value；
Second determining module, if being greater than default threshold for the distance between first sliding position and second sliding position
Value, configures single antenna operating mode for the baseband processing chip, otherwise, configures double antenna for the baseband processing chip
Operating mode.
7. device according to claim 6, which is characterized in that the baseband processing chip uses maximum-ratio combing receiver
Framework, in terms of configuring single antenna operating mode for the baseband processing chip, second determining module is specifically used for,
The merging coefficient of the primary antenna access is set to 1, the merging coefficient of the auxiliary antennas paths is set to 0.
8. device according to claim 6, which is characterized in that the baseband processing chip uses maximum-ratio combing receiver
Framework, in terms of configuring double antenna operating mode for the baseband processing chip, second determining module is specifically used for,
Determine corresponding with primary antenna access automatic gain control circuit the first yield value and with the auxiliary antennas paths
Second yield value of corresponding automatic gain control circuit；
Based on first yield value and second yield value, the merging coefficient of the primary antenna access and described auxiliary is determined
The merging coefficient of antennas paths.
9. device according to claim 8, which is characterized in that be based on first yield value and second gain
Value determines the merging coefficient aspect for merging coefficient and the auxiliary antennas paths of the primary antenna access, and described second determines
Module is specifically used for,
If first yield value is greater than or equal to second yield value, the merging coefficient of the primary antenna access is described the
The inverse of one yield value and the absolute value of the second yield value difference, the merging coefficient of the auxiliary antennas paths are 1；
If first yield value is less than second yield value, the merging coefficient of the primary antenna access is 1, the auxiliary antenna
The inverse for merging the absolute value that coefficient is first yield value and the second yield value difference of access.
10. a kind of baseband processing chip, which is characterized in that including primary antenna access, auxiliary antennas paths and as claim 6-9 appoints
Signal processing apparatus described in meaning one.
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| CN101370224A (en) * | 2007-08-17 | 2009-02-18 | 中兴通讯股份有限公司 | Multi-antenna modulate type detection method for EDGE system |
| CN102122997A (en) * | 2011-03-21 | 2011-07-13 | 中兴通讯股份有限公司 | Method, device and terminal for detecting long term evolution (LTE) master synchronizing signal |
| CN102571668A (en) * | 2012-01-06 | 2012-07-11 | 合肥东芯通信股份有限公司 | Phase compensation method and system in LTE (long term evolution) system |
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| CN101370224A (en) * | 2007-08-17 | 2009-02-18 | 中兴通讯股份有限公司 | Multi-antenna modulate type detection method for EDGE system |
| CN102122997A (en) * | 2011-03-21 | 2011-07-13 | 中兴通讯股份有限公司 | Method, device and terminal for detecting long term evolution (LTE) master synchronizing signal |
| CN102571668A (en) * | 2012-01-06 | 2012-07-11 | 合肥东芯通信股份有限公司 | Phase compensation method and system in LTE (long term evolution) system |
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