CN103731383A - Interference elimination method and device and receiver - Google Patents
Interference elimination method and device and receiver Download PDFInfo
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- CN103731383A CN103731383A CN201310699838.XA CN201310699838A CN103731383A CN 103731383 A CN103731383 A CN 103731383A CN 201310699838 A CN201310699838 A CN 201310699838A CN 103731383 A CN103731383 A CN 103731383A
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Abstract
The invention provides an interference elimination method and device and a receiver. The interference elimination method includes the steps that equilibrium processing is conducted on received signals through equilibrium parameters of a serving cell, and then equilibrium signals of the serving cell are acquired; blind reconstruction or soft reconstruction of a common signal channel of the serving cell is conducted on the equilibrium signals of the serving cell, and then reconstructed chips of the common signal channel of the serving cell are acquired; soft reconstruction of non-public signal channels of the serving cell is conducted on the equilibrium signals of the serving cell, and reconstructed chips of the non-public signal channels of the serving cell are acquired, wherein the non-public signal channels of the serving cell are signal channels of which the receiving power is larger than a first preset threshold and in which the common signal channel of the serving cell is not included; the reconstructed chips of the common signal channel of the serving cell and the reconstructed chips of the non-public signal channels of the serving cell are removed in the equilibrium signals of the serving cell, and then linear interference elimination processing is conducted to acquire first level target signals of the serving cell. According to the interference elimination method and device, signal interference of the receiver can be effectively eliminated.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of interference elimination method and device, receiver.
Background technology
At code division multiple access (Code Division Multiple Access, CDMA) in communication system, along with the requirement of communication quality and data rate is improved constantly, receiver technology develops into balanced reception machine from Rake receiver, and further develops into interference cancellation receiver.In actual applications; interference cancellation receiver can adopt linear disturbance removing method to disturb elimination conventionally, and this method is used linear disturbance technology for eliminating completely, although can eliminate to a certain extent interference; but disturb eradicating efficacy still poor, cause residual interference still larger.
Summary of the invention
The embodiment of the invention discloses a kind of interference elimination method and device, receiver, effectively the signal of cancellation receiver disturbs.
Embodiment of the present invention first aspect discloses a kind of interference elimination method, comprising:
Utilize the balance parameters of Serving cell to make to received signal equilibrium treatment, obtain Serving cell equalizing signal;
Described Serving cell equalizing signal is carried out to the blind reconstruct of Serving cell common signal channel or soft reconstruct, obtain Serving cell common signal channel reconstruct chip;
Described Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell chip, wherein, the non-common signal channel in described Serving cell is the Serving cell channel of received power except the common signal channel of described Serving cell over the first default thresholding;
Described Serving cell equalizing signal is deducted to the non-common signal channel reconstruct of described Serving cell common signal channel reconstruct chip and described Serving cell chip, then make linear disturbance Processing for removing, obtain first order Serving cell echo signal.
In the possible implementation of the first of embodiment of the present invention first aspect, described method also comprises:
Described Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain first order Serving cell common signal channel reconstruction signal;
After described first order Serving cell echo signal is added to the non-common signal channel reconstruct in the above Serving cell chip, make convolution with Serving cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in first order Serving cell;
Utilize the balance parameters of interfered cell to make equilibrium treatment to described reception signal, obtain interfered cell equalizing signal;
Described interfered cell equalizing signal is carried out to the blind reconstruct of interfered cell common signal channel or soft reconstruct, obtain interfered cell common signal channel reconstruct chip, and described interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain first order interfered cell common signal channel reconstruction signal;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described first order Serving cell, make equilibrium treatment, obtain interfered cell, second level equalizing signal;
Interfered cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in interfered cell, second level chip, and make linear disturbance Processing for removing after interfered cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in interfered cell, described second level chip, obtain interfered cell, second level echo signal; Wherein, the non-common signal channel in described interfered cell is the interfered cell channel of received power except the common signal channel of described interfered cell over the second default thresholding;
After interfered cell, described second level echo signal is added to the non-common signal channel reconstruct in the above interfered cell, second level chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in interfered cell, the second level;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described first order Serving cell and interfered cell, the described second level, make equilibrium treatment, obtain third level interfered cell equalizing signal;
Described third level interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in third level interfered cell chip, and make linear disturbance Processing for removing after described third level interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described third level interfered cell chip, obtain third level interfered cell echo signal;
After described third level interfered cell echo signal is added to the non-common signal channel reconstruct in the above third level interfered cell chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in third level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in interfered cell, the described second level and described third level interfered cell, make equilibrium treatment, obtain fourth stage Serving cell equalizing signal;
Described fourth stage Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in fourth stage Serving cell chip, and make linear disturbance Processing for removing after described fourth stage Serving cell equalizing signal is deducted to the non-common signal channel reconstruct in described fourth stage Serving cell chip, obtain described fourth stage Serving cell echo signal.
In conjunction with the possible implementation of the first of embodiment of the present invention first aspect, in the possible implementation of the second of embodiment of the present invention first aspect, described method also comprises:
After described fourth stage Serving cell echo signal is added to the non-common signal channel reconstruct in the above fourth stage Serving cell chip, make convolution with Serving cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in described fourth stage Serving cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described fourth stage Serving cell and described third level interfered cell, make equilibrium treatment, obtain level V interfered cell equalizing signal;
Described level V interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in level V interfered cell chip, and make linear disturbance Processing for removing after described level V interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described level V interfered cell chip, obtain level V interfered cell echo signal;
After described level V interfered cell echo signal is added to the non-common signal channel reconstruct in the above level V interfered cell chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in described level V interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described fourth stage Serving cell and described level V interfered cell, make equilibrium treatment, obtain the 6th grade of interfered cell equalizing signal;
Described the 6th grade of interfered cell equalizing signal carried out to the non-common channel soft reconstruct in interfered cell, obtain the 6th grade of non-common signal channel reconstruct in interfered cell chip, and make linear disturbance Processing for removing after described the 6th grade of interfered cell equalizing signal deducted to described the 6th grade of non-common signal channel reconstruct in interfered cell chip, obtain the 6th grade of interfered cell echo signal;
After described the 6th grade of interfered cell echo signal added to the above the 6th grade of non-common signal channel reconstruct in interfered cell chip, make convolution with interfered cell time domain channel impulse response, obtain the 6th grade of non-common signal channel reconstruction signal in interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described level V interfered cell and described the 6th grade of non-common signal channel reconstruction signal in interfered cell, make equilibrium treatment, obtain the 7th grade of Serving cell equalizing signal;
Described the 7th grade of Serving cell equalizing signal carried out to the non-common channel soft reconstruct in Serving cell, obtain the 7th grade of non-common signal channel reconstruct in Serving cell chip, and make linear disturbance Processing for removing after described the 7th grade of Serving cell equalizing signal deducted to described the 7th grade of non-common signal channel reconstruct in Serving cell chip, obtain described the 7th grade of Serving cell echo signal.
In conjunction with the possible implementation of the first of embodiment of the present invention first aspect, in the third possible implementation of embodiment of the present invention first aspect, described method also comprises:
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of described first order interfered cell common signal channel reconstruction signal and N-1 level interfered cell, make equilibrium treatment, obtain N level Serving cell equalizing signal; Wherein, described N is more than or equal to 3 natural number;
Described N level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N level Serving cell chip, and described N level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N level Serving cell echo signal.
In conjunction with the third possible implementation of embodiment of the present invention first aspect, in the 4th kind of possible implementation of embodiment of the present invention first aspect, described method also comprises:
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N-1 level interfered cell and described N level Serving cell echo signal, make equilibrium treatment, obtain N level interfered cell equalizing signal;
Described N level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N level interfered cell chip, and described N level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell and described N level Serving cell echo signal, make equilibrium treatment, obtain N+1 level interfered cell equalizing signal;
Described N+1 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+1 level interfered cell chip, and described N+1 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+1 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell, described N level Serving cell echo signal and the non-common signal channel reconstruction signal in described N+1 level interfered cell, make equilibrium treatment, obtain N+1 level Serving cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N level Serving cell chip, described N+1 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+1 level Serving cell chip, and described N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+1 level Serving cell echo signal.
In conjunction with the 4th kind of possible implementation of embodiment of the present invention first aspect, in the 5th kind of possible implementation of embodiment of the present invention first aspect, described method also comprises:
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N level interfered cell and the non-common signal channel reconstruction signal in described N+1 level interfered cell, make equilibrium treatment, obtain N+2 level interfered cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N level interfered cell chip, described N+2 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+2 level interfered cell chip, and described N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in described N+2 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+1 level interfered cell and the non-common signal channel reconstruction signal in described N+2 level interfered cell, make equilibrium treatment, obtain N+3 level interfered cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N level interfered cell chip, described N+3 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+3 level interfered cell chip, and described N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in described N+3 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of described first order interfered cell common signal channel reconstruction signal and N+2 level interfered cell, the non-common signal channel reconstruction signal in N+3 level interfered cell, make equilibrium treatment, obtain N+4 level Serving cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N level Serving cell chip, described N+4 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+4 level Serving cell chip, and described N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+4 level Serving cell echo signal.
In the 6th kind of possible implementation of embodiment of the present invention first aspect, described method also comprises:
Described Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain first order Serving cell common signal channel reconstruction signal;
After described first order Serving cell echo signal is added to the non-common signal channel reconstruct in the above Serving cell chip, make convolution with Serving cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in first order Serving cell;
Utilize the balance parameters of interfered cell to make equilibrium treatment to described reception signal, obtain interfered cell equalizing signal;
Described interfered cell equalizing signal is carried out to the blind reconstruct of interfered cell common signal channel or soft reconstruct, obtain interfered cell common signal channel reconstruct chip, and described interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain first order interfered cell common signal channel reconstruction signal;
Described interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in interfered cell chip, and make linear disturbance Processing for removing after described interfered cell equalizing signal is deducted to the non-common signal channel reconstruct of described interfered cell common signal channel reconstruct chip and described interfered cell chip, obtain first order interfered cell echo signal; Wherein, the non-common signal channel in described interfered cell is the interfered cell channel of received power except the common signal channel of described interfered cell over the second default thresholding;
After described first order interfered cell echo signal is added to the non-common signal channel reconstruct in the above interfered cell chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in first order interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described first order interfered cell, make equilibrium treatment, obtain Serving cell, second level equalizing signal;
Serving cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell, second level chip, and make linear disturbance Processing for removing after Serving cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in Serving cell, described second level chip, obtain Serving cell, second level echo signal.
In conjunction with the 6th kind of possible implementation of embodiment of the present invention first aspect, in the 7th kind of possible implementation of embodiment of the present invention first aspect, described method also comprises:
After Serving cell, described second level echo signal is added to the non-common signal channel reconstruct in the above Serving cell, second level chip, make convolution with Serving cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in Serving cell, the second level;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described first order Serving cell and first order interfered cell, make equilibrium treatment, obtain interfered cell, second level equalizing signal;
Interfered cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in interfered cell, second level chip, and make linear disturbance Processing for removing after interfered cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in interfered cell, described second level chip, obtain interfered cell, second level echo signal;
After interfered cell, described second level echo signal is added to the non-common signal channel reconstruct in the above interfered cell, second level chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in interfered cell, the second level;
After being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N-1 level Serving cell and the non-common signal channel reconstruction signal in N-1 level interfered cell, described reception signal makes equilibrium treatment, obtain N level interfered cell equalizing signal, wherein, described N is more than or equal to 3 natural number;
Described N level interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in N level interfered cell chip, and make linear disturbance Processing for removing after described N level interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described N level interfered cell chip, obtain N level interfered cell echo signal;
After described N level interfered cell echo signal is added to the above the non-common signal channel reconstruct in N level interfered cell chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in N level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell, make equilibrium treatment, obtain N+1 level Serving cell equalizing signal;
Described N+1 level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+1 level Serving cell chip, and described N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+1 level Serving cell echo signal.
In conjunction with the 7th kind of possible implementation of embodiment of the present invention first aspect, in the 8th kind of possible implementation of embodiment of the present invention first aspect, described method also comprises:
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal and the non-common signal channel reconstruction signal in described N level interfered cell, make equilibrium treatment, obtain N+2 level interfered cell equalizing signal;
Described N+2 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+2 level interfered cell chip, and described N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+2 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level described Serving cell echo signal and the non-common signal channel reconstruction signal in described N+2 level interfered cell, make equilibrium treatment, obtain N+3 level interfered cell equalizing signal;
Described N+3 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+3 level interfered cell chip, and described N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+3 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+2 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, make equilibrium treatment, obtain N+4 level Serving cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N+1 level Serving cell chip, described N+4 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+4 level Serving cell chip, and described N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+4 level Serving cell echo signal.
In conjunction with the 8th kind of possible implementation of embodiment of the present invention first aspect, in the 9th kind of possible implementation of embodiment of the present invention first aspect, described method also comprises:
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+2 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, make equilibrium treatment, obtain N+5 level interfered cell equalizing signal;
After being added to the above non-common signal channel reconstruction signal in N+2 level interfered cell, described N+5 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+5 level interfered cell chip, and described N+5 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in described N+5 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+5 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, make equilibrium treatment, obtain N+6 level interfered cell equalizing signal;
After being added to the above non-common signal channel reconstruction signal in N+3 level interfered cell, described N+6 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+6 level interfered cell chip, and described N+6 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+6 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N+5 level interfered cell and the non-common signal channel reconstruction signal in described N+6 level interfered cell, make equilibrium treatment, obtain N+7 level Serving cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N+1 level Serving cell chip, described N+7 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+7 level Serving cell chip, and described N+7 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+7 level Serving cell echo signal.
In conjunction with the possible implementation of arbitrary clock in embodiment of the present invention first aspect or embodiment of the present invention first aspect first to the 9th kind, in the tenth kind of possible implementation of embodiment of the present invention first aspect, described described Serving cell equalizing signal is carried out to the blind reconstruct of Serving cell common signal channel or soft reconstruct, obtain Serving cell common signal channel reconstruct chip, comprising:
Described Serving cell equalizing signal is carried out to descrambling and de-spreading, obtain Serving cell common signal channel symbol;
Described Serving cell common signal channel symbol is carried out that common signal channel reconstruct symbol is sentenced firmly or softly sentenced, obtain Serving cell common signal channel reconstruct symbol;
Described Serving cell common signal channel reconstruct symbol carries out spectrum-spreading and scrambling, obtains Serving cell common signal channel reconstruct chip.
In conjunction with the possible implementation of arbitrary clock in embodiment of the present invention first aspect or embodiment of the present invention first aspect first to the 9th kind, in the 11 kind of possible implementation of embodiment of the present invention first aspect, described described Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell chip, comprising:
Described Serving cell equalizing signal is carried out to descrambling and de-spreading, obtain Serving cell common signal channel symbol;
Described Serving cell common signal channel symbol is carried out to non-common signal channel reconstruct symbol is soft to be sentenced, obtain the non-common signal channel reconstruct in Serving cell symbol;
Described Serving cell non-common signal channel reconstruct symbol is carried out to spectrum-spreading and scrambling, obtain the non-common signal channel reconstruct in described Serving cell chip.
Embodiment of the present invention second aspect discloses a kind of interference blanking unit, comprising:
The first balanced unit, for utilizing the balance parameters of Serving cell to make to received signal equilibrium treatment, obtains Serving cell equalizing signal;
The first reconfiguration unit, carries out the blind reconstruct of Serving cell common signal channel or soft reconstruct for the described Serving cell equalizing signal that described the first balanced unit is obtained, and obtains Serving cell common signal channel reconstruct chip;
The second reconfiguration unit, for the described Serving cell equalizing signal that described the first balanced unit is obtained, carry out the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell chip, wherein, the non-common signal channel in described Serving cell is the Serving cell channel of received power except the common signal channel of described Serving cell over the first default thresholding;
The first computing unit, for the described Serving cell equalizing signal that described the first balanced unit is obtained, deduct the non-common signal channel reconstruct in the described Serving cell chip that described Serving cell common signal channel reconstruct chip that described the first reconfiguration unit obtains and described the second reconfiguration unit obtain, and export the first residual signal;
The first linear interference cancellation unit, for described first residual signal of described the first computing unit output is made to linear disturbance Processing for removing, obtains first order Serving cell echo signal.
In the possible implementation of the first of second of the embodiment of the present invention, described device also comprises:
First volume product unit, makes convolution for described Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response that described the first reconfiguration unit is obtained, obtains first order Serving cell common signal channel reconstruction signal;
The second computing unit, adds for the described first order Serving cell echo signal that described the first linear interference cancellation unit is obtained the non-common signal channel reconstruct in the described Serving cell chip that the above second reconfiguration unit obtains, and exports the first cumulative signal;
Volume Two product unit, for described the first cumulative signal and the Serving cell time domain channel impulse response of described the second computing unit output are made to convolution, obtains the non-common signal channel reconstruction signal in first order Serving cell;
Described the first balanced unit, also for utilizing the balance parameters of interfered cell to make equilibrium treatment to described reception signal, obtains interfered cell equalizing signal;
Described the first reconfiguration unit, also carries out the blind reconstruct of interfered cell common signal channel or soft reconstruct for the described interfered cell equalizing signal that described the first balanced unit is obtained, and obtains interfered cell common signal channel reconstruct chip;
Described first volume product unit, also makes convolution for described interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response that described the first reconfiguration unit is obtained, obtains first order interfered cell common signal channel reconstruction signal;
Described device also comprises:
The 3rd computing unit, for described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described first order Serving cell, and export the second residual signal;
The second balanced unit, for described the second residual signal is made to equilibrium treatment, obtains interfered cell, second level equalizing signal;
Reconstructed unit, for interfered cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in interfered cell, second level chip;
The 4th computing unit, for interfered cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in interfered cell, described second level chip, and exports the 3rd residual signal;
The second linear disturbance is eliminated unit, for described the 3rd residual signal is made to linear disturbance Processing for removing, obtains interfered cell, second level echo signal; Wherein, the non-common signal channel in described interfered cell is the interfered cell channel of received power except the common signal channel of described interfered cell over the second default thresholding;
The 5th computing unit, for interfered cell, described second level echo signal is added to the non-common signal channel reconstruct in the above interfered cell, second level chip, and exports the second cumulative signal;
The 3rd convolution unit, for described the second cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in interfered cell, the second level;
Described the 3rd computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described first order Serving cell and interfered cell, the described second level, and export the 4th residual signal;
Described the second balanced unit, also for described the 4th residual signal is made to equilibrium treatment, obtains third level interfered cell equalizing signal;
Described reconstructed unit, also for described third level interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in third level interfered cell chip;
Described the 4th computing unit, also for described third level interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described third level interfered cell chip, and exports the 5th residual signal;
Described the second linear disturbance is eliminated unit, also for described the 5th residual signal is made to linear disturbance Processing for removing, obtains third level interfered cell echo signal;
Described the 5th computing unit, also for described third level interfered cell echo signal is added to the non-common signal channel reconstruct in the above third level interfered cell chip, and exports the 3rd cumulative signal;
Described the 3rd convolution unit, for described the 3rd cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in third level interfered cell;
Described the 3rd computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in interfered cell, the described second level and described third level interfered cell, and export the 6th residual signal;
Described the second balanced unit, also for making equilibrium treatment to described the 6th residual signal, fourth stage Serving cell equalizing signal;
Described reconstructed unit, also for described fourth stage Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtains the non-common signal channel reconstruct in fourth stage Serving cell chip;
Described the 4th computing unit, also for described fourth stage Serving cell equalizing signal is deducted to the non-common signal channel reconstruct in described fourth stage Serving cell chip, and exports the 7th residual signal;
Described the second linear disturbance is eliminated unit, also, for described the 7th residual signal is made to linear disturbance Processing for removing, obtains described fourth stage Serving cell echo signal.
In conjunction with the possible implementation of the first of embodiment of the present invention second aspect, in the possible implementation of the second of embodiment of the present invention second aspect:
Described the 5th computing unit, also for described fourth stage Serving cell echo signal is added to the non-common signal channel reconstruct in the above fourth stage Serving cell chip, and exports the 4th cumulative signal;
Described the 3rd convolution unit, also, for described the 4th cumulative signal and Serving cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in described fourth stage Serving cell;
Described the 3rd computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described fourth stage Serving cell and described third level interfered cell, and export the 8th residual signal;
Described the second balanced unit, also for described the 8th residual signal is made to equilibrium treatment, obtains level V interfered cell equalizing signal;
Described reconstructed unit, also for described level V interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in level V interfered cell chip;
Described the 4th computing unit, also for described level V interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described level V interfered cell chip, and exports the 9th residual signal;
Described the second linear disturbance is eliminated unit, also for described the 9th residual signal is made to linear disturbance Processing for removing, obtains level V interfered cell echo signal;
Described the 5th computing unit, also for described level V interfered cell echo signal is added to the non-common signal channel reconstruct in the above level V interfered cell chip, and exports the 5th cumulative signal;
Described the 3rd convolution unit, also, for described the 5th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in described level V interfered cell;
Described the 3rd computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described fourth stage Serving cell and described level V interfered cell, and export the tenth residual signal;
Described the second balanced unit, also for described the tenth residual signal is made to equilibrium treatment, obtains the 6th grade of interfered cell equalizing signal;
Described reconstructed unit, also, for described the 6th grade of interfered cell equalizing signal carried out to the non-common channel soft reconstruct in interfered cell, obtains the 6th grade of non-common signal channel reconstruct in interfered cell chip;
Described the 4th computing unit, also for described the 6th grade of interfered cell equalizing signal being deducted to described the 6th grade of non-common signal channel reconstruct in interfered cell chip, and exports the 11 residual signal;
Described the second linear disturbance is eliminated unit, also for described the 11 residual signal is made to linear disturbance Processing for removing, obtains the 6th grade of interfered cell echo signal;
Described the 5th computing unit, also for described the 6th grade of interfered cell echo signal being added to the above the 6th grade of non-common signal channel reconstruct in interfered cell chip, and exports the 6th cumulative signal;
Described the 3rd convolution unit, also for described the 6th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the 6th grade of non-common signal channel reconstruction signal in interfered cell;
Described the 3rd computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described level V interfered cell and described the 6th grade of non-common signal channel reconstruction signal in interfered cell, and export the 12 residual signal;
Described the second balanced unit, also for described the 12 residual signal is made to equilibrium treatment, obtains the 7th grade of Serving cell equalizing signal;
Described reconstructed unit, also, for described the 7th grade of Serving cell equalizing signal carried out to the non-common channel soft reconstruct in Serving cell, obtains the 7th grade of non-common signal channel reconstruct in Serving cell chip;
Described the 4th computing unit, also for described the 7th grade of Serving cell equalizing signal being deducted to described the 7th grade of non-common signal channel reconstruct in Serving cell chip, and exports the 13 residual signal;
Described the second linear disturbance is eliminated unit, also for described the 13 residual signal is made to linear disturbance Processing for removing, obtains described the 7th grade of Serving cell echo signal.
In conjunction with the possible implementation of the first of embodiment of the present invention second aspect, in the third possible implementation of embodiment of the present invention second aspect, described device also comprises:
The 6th computing unit, for described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of described first order interfered cell common signal channel reconstruction signal and N-1 level interfered cell, and exporting the 14 residual signal, described N is more than or equal to 3 natural number;
The 3rd balanced unit, for described the 14 residual signal is made to equilibrium treatment, obtains N level Serving cell equalizing signal; Wherein, described N is more than or equal to 3 natural number;
The 4th reconfiguration unit, for described N level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N level Serving cell chip;
Volume Four product unit, for described N level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N level Serving cell echo signal.
In conjunction with the third possible implementation of embodiment of the present invention second aspect, in the 4th kind of possible implementation of embodiment of the present invention second aspect, described device also comprises:
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N-1 level interfered cell and described N level Serving cell echo signal, and export the 15 residual signal;
Described the 3rd balanced unit, also for described the 15 residual signal is made to equilibrium treatment, obtains N level interfered cell equalizing signal;
Described the 4th reconfiguration unit, also for described N level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N level interfered cell chip;
Described Volume Four product unit, also for described N level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N level interfered cell;
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell and described N level Serving cell echo signal, and export the 16 residual signal;
Described the 3rd balanced unit, also for described the 16 residual signal is made to equilibrium treatment, obtains N+1 level interfered cell equalizing signal;
Described the 4th reconfiguration unit, also for described N+1 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+1 level interfered cell chip;
Described Volume Four product unit, also for described N+1 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+1 level interfered cell;
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell, described N level Serving cell echo signal and the non-common signal channel reconstruction signal in described N+1 level interfered cell, and export the 17 residual signal;
Described the 3rd balanced unit, also for described the 17 residual signal is made to equilibrium treatment, obtains N+1 level Serving cell equalizing signal;
Described device also comprises:
The 7th computing unit, for described N+1 level Serving cell equalizing signal is added to the above the non-common signal channel reconstruct in N level Serving cell chip, and exports the 7th cumulative signal;
Described the 4th reconfiguration unit, also for utilizing described the 7th cumulative signal to carry out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+1 level Serving cell chip;
Described Volume Four product unit, also for described N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+1 level Serving cell echo signal.
In conjunction with the 4th kind of possible implementation of embodiment of the present invention second aspect, in the 5th kind of possible implementation of embodiment of the present invention second aspect,
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N level interfered cell and the non-common signal channel reconstruction signal in described N+1 level interfered cell, and export the 18 residual signal;
Described the 3rd balanced unit, also for described the 18 residual signal is made to equilibrium treatment, obtains N+2 level interfered cell equalizing signal;
Described the 7th computing unit, also for described N+2 level interfered cell equalizing signal is added to the above the non-common signal channel reconstruct in N level interfered cell chip, and exports the 8th cumulative signal;
Described the 4th reconfiguration unit, also for utilizing described the 8th cumulative signal to carry out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+2 level interfered cell chip;
Described Volume Four product unit, also for described N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in described N+2 level interfered cell;
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+1 level interfered cell and the non-common signal channel reconstruction signal in described N+2 level interfered cell, and export the 19 residual signal;
Described the 3rd balanced unit, also for described the 19 residual signal is made to equilibrium treatment, obtains N+3 level interfered cell equalizing signal;
Described the 7th computing unit, also for described N+3 level interfered cell equalizing signal is added to the above the non-common signal channel reconstruct in N level interfered cell chip, and exports the 9th cumulative signal;
Described the 4th reconfiguration unit, also for utilizing described the 9th cumulative signal to carry out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+3 level interfered cell chip;
Described Volume Four product unit, also for described N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in described N+3 level interfered cell;
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of described first order interfered cell common signal channel reconstruction signal and N+2 level interfered cell, the non-common signal channel reconstruction signal in N+3 level interfered cell, and export the 20 residual signal;
Described the 3rd balanced unit, also for described the 20 residual signal is made to equilibrium treatment, obtains N+4 level Serving cell equalizing signal;
Described the 7th computing unit, also for described N+4 level Serving cell equalizing signal is added to the above the non-common signal channel reconstruct in N level Serving cell chip, and exports the tenth cumulative signal;
Described the 4th reconfiguration unit, also for utilizing described the tenth cumulative signal to carry out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+4 level Serving cell chip;
Described Volume Four product unit, also for described N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+4 level Serving cell echo signal.
In the 6th kind of possible implementation of embodiment of the present invention second aspect, described device also comprises:
First volume product unit, makes convolution for described Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response that described the first reconfiguration unit is obtained, obtains first order Serving cell common signal channel reconstruction signal;
The second computing unit, adds for the described first order Serving cell echo signal that described the first linear interference cancellation unit is obtained the non-common signal channel reconstruct in the described Serving cell chip that the above second reconfiguration unit obtains, and exports the first cumulative signal;
Volume Two product unit, for described the first cumulative signal and the Serving cell time domain channel impulse response of described the second computing unit output are made to convolution, obtains the non-common signal channel reconstruction signal in first order Serving cell;
Described the first balanced unit, also for utilizing the balance parameters of interfered cell to make equilibrium treatment to described reception signal, obtains interfered cell equalizing signal;
Described device also comprises:
Reconstructed unit, carries out the blind reconstruct of interfered cell common signal channel or soft reconstruct for the described interfered cell equalizing signal that described the first balanced unit is obtained, and obtains interfered cell common signal channel reconstruct chip;
The 3rd convolution unit, also makes convolution for described interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response that described reconstructed unit is obtained, obtains first order interfered cell common signal channel reconstruction signal;
The 4th reconfiguration unit, carries out the non-common channel soft reconstruct in interfered cell for the described interfered cell equalizing signal that described the first balanced unit is obtained, and obtains the non-common signal channel reconstruct in interfered cell chip; Wherein, the non-common signal channel in described interfered cell is the interfered cell channel of received power except the common signal channel of described interfered cell over the second default thresholding;
The 3rd computing unit, for described interfered cell equalizing signal being deducted to the non-common signal channel reconstruct of described interfered cell common signal channel reconstruct chip and described interfered cell chip, and exports the second residual signal;
The second linear disturbance is eliminated unit, for described the second residual signal is made to linear disturbance Processing for removing, obtains first order interfered cell echo signal;
The 4th computing unit, for described first order interfered cell echo signal is added after the non-common signal channel reconstruct in the above interfered cell chip, and exports the second cumulative signal;
Volume Four product unit, for described the second cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in first order interfered cell;
Described device also comprises:
The 5th computing unit, for described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described first order interfered cell, and export the 3rd residual signal;
The second balanced unit, for to described the 3rd residual signal equilibrium treatment, obtains Serving cell, second level equalizing signal;
The 5th reconfiguration unit, for Serving cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtains the non-common signal channel reconstruct in Serving cell, second level chip;
The 6th computing unit, for Serving cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in Serving cell, described second level chip, and exports the 4th residual signal;
The 3rd linear disturbance is eliminated unit, for described the 4th residual signal is made to linear disturbance Processing for removing, obtains Serving cell, second level echo signal.
In conjunction with the 6th kind of possible implementation of embodiment of the present invention second aspect, in the 7th kind of possible implementation of embodiment of the present invention second aspect, described device also comprises:
The 7th computing unit, for Serving cell, described second level echo signal is added to the non-common signal channel reconstruct in the above Serving cell, second level chip, and exports the 3rd cumulative signal;
The 5th convolution unit, for described the 3rd cumulative signal and Serving cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in Serving cell, the second level;
Described the 5th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described first order Serving cell and first order interfered cell, and export the 5th residual signal;
Described the second balanced unit, also, for to described the 5th residual signal equilibrium treatment, obtains interfered cell, second level equalizing signal;
Described the 5th reconfiguration unit, also for interfered cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in interfered cell, second level chip;
Described the 6th computing unit, also for interfered cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in interfered cell, described second level chip, and exports the 6th residual signal;
Described the 3rd linear disturbance is eliminated unit, also for described the 6th residual signal is made to linear disturbance Processing for removing, obtains interfered cell, second level echo signal;
Described the 7th computing unit, also for interfered cell, described second level echo signal is added to the non-common signal channel reconstruct in the above interfered cell, second level chip, and exports the 4th cumulative signal;
Described the 5th convolution unit, also for described the 4th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in interfered cell, the second level;
Described the 5th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N-1 level Serving cell and the non-common signal channel reconstruction signal in N-1 level interfered cell, and export the 7th residual signal, wherein, described N is more than or equal to 3 natural number;
Described the second balanced unit, also, for to described the 7th residual signal equilibrium treatment, obtains N level interfered cell equalizing signal;
Described the 5th reconfiguration unit, also for described N level interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in N level interfered cell chip;
Described the 6th computing unit, also for described N level interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described N level interfered cell chip, and exports the 8th residual signal;
Described the 3rd linear disturbance is eliminated unit, also for described the 8th residual signal is made to linear disturbance Processing for removing, obtains N level interfered cell echo signal;
Described the 7th computing unit, also for described N level interfered cell echo signal is added to the above the non-common signal channel reconstruct in N level interfered cell chip, and exports the 5th cumulative signal;
Described the 5th convolution unit, also for described the 5th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N level interfered cell;
Described device also comprises:
The 8th computing unit, for described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell, and export the 9th residual signal;
The 3rd balanced unit, for described the 9th residual signal is made to equilibrium treatment, obtains N+1 level Serving cell equalizing signal;
The 6th reconfiguration unit, for described N+1 level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+1 level Serving cell chip;
The 6th convolution unit, for described N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+1 level Serving cell echo signal.
In conjunction with the 7th kind of possible implementation of embodiment of the present invention second aspect, in the 8th kind of possible implementation of embodiment of the present invention second aspect:
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal and the non-common signal channel reconstruction signal in described N level interfered cell, and export the tenth residual signal;
Described the 3rd balanced unit, also for described the tenth residual signal is made to equilibrium treatment, obtains N+2 level interfered cell equalizing signal;
Described the 6th reconfiguration unit, also for described N+2 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+2 level interfered cell chip;
Described the 6th convolution unit, also for described N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+2 level interfered cell;
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level described Serving cell echo signal and the non-common signal channel reconstruction signal in described N+2 level interfered cell, and export the 11 residual signal;
Described the 3rd balanced unit, also for described the 11 residual signal is made to equilibrium treatment, obtains N+3 level interfered cell equalizing signal;
Described the 6th reconfiguration unit, also for described N+3 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+3 level interfered cell chip;
Described the 6th convolution unit, also for described N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+3 level interfered cell;
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+2 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, and export the 12 residual signal;
Described the 3rd balanced unit, also for described the 12 residual signal is made to equilibrium treatment, obtains N+4 level Serving cell equalizing signal;
Described device also comprises:
The 9th computing unit, for described N+4 level Serving cell equalizing signal is added to the above the non-common signal channel reconstruct in N+1 level Serving cell chip, and exports the 6th cumulative signal;
Described the 6th reconfiguration unit, also for carrying out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct according to described the 6th cumulative signal, obtains the non-common signal channel reconstruct in N+4 level Serving cell chip;
Described the 6th convolution unit, also for described N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+4 level Serving cell echo signal.
In conjunction with the 8th kind of possible implementation of embodiment of the present invention second aspect, in the 9th kind of possible implementation of embodiment of the present invention second aspect:
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+2 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, and export the 13 residual signal;
Described the 3rd balanced unit, also for described the 13 residual signal is made to equilibrium treatment, obtains N+5 level interfered cell equalizing signal;
Described the 9th computing unit, also for described N+5 level interfered cell equalizing signal is added to the above non-common signal channel reconstruction signal in N+2 level interfered cell, and exports the 7th cumulative signal;
Described the 6th reconfiguration unit, also for carrying out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct according to described the 7th cumulative signal, obtains the non-common signal channel reconstruct in N+5 level interfered cell chip;
Described the 6th convolution unit, also for described N+5 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in described N+5 level interfered cell;
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+5 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, and export the 14 residual signal;
Described the 3rd balanced unit, also for described the 14 residual signal is made to equilibrium treatment, obtains N+6 level interfered cell equalizing signal;
Described the 9th computing unit, also for described N+6 level interfered cell equalizing signal is added to the above non-common signal channel reconstruction signal in N+3 level interfered cell, and exports the 8th cumulative signal;
Described the 6th reconfiguration unit, also for carrying out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct according to described the 8th cumulative signal, obtains the non-common signal channel reconstruct in N+6 level interfered cell chip;
Described the 6th convolution unit, also for described N+6 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+6 level interfered cell;
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N+5 level interfered cell and the non-common signal channel reconstruction signal in described N+6 level interfered cell, and export the 15 residual signal;
Described the 3rd balanced unit, also for described the 15 residual signal is made to equilibrium treatment, obtains N+7 level Serving cell equalizing signal;
Described the 9th computing unit, also for described N+7 level Serving cell equalizing signal is added to the above the non-common signal channel reconstruct in N+1 level Serving cell chip, and exports the 9th cumulative signal;
Described the 6th reconfiguration unit, also for carrying out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct according to described the 9th cumulative signal, obtains the non-common signal channel reconstruct in N+7 level Serving cell chip;
Described the 6th convolution unit, also for described N+7 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+7 level Serving cell echo signal.
In conjunction with any possible implementation in embodiment of the present invention second aspect or embodiment of the present invention second aspect first to nine kind, in the tenth kind of possible implementation of embodiment of the present invention second aspect, the described Serving cell equalizing signal that described the first reconfiguration unit obtains described the first balanced unit carries out the blind reconstruct of Serving cell common signal channel or soft reconstruct, and the mode that obtains Serving cell common signal channel reconstruct chip is specially:
The described Serving cell equalizing signal that the first reconfiguration unit obtains described the first balanced unit carries out descrambling and de-spreading, obtains described Serving cell common signal channel symbol; And described Serving cell common signal channel symbol is carried out that common signal channel reconstruct symbol is sentenced firmly or softly sentenced, obtain Serving cell common signal channel reconstruct symbol; And described Serving cell common signal channel reconstruct symbol is carried out to spectrum-spreading and scrambling, to obtain Serving cell common signal channel reconstruct chip.
In conjunction with any possible implementation in embodiment of the present invention second aspect or embodiment of the present invention second aspect first to nine kind, in the 11 kind of possible implementation of embodiment of the present invention second aspect, the described Serving cell equalizing signal that described the second reconfiguration unit obtains described the first balanced unit carries out the non-common channel soft reconstruct in Serving cell, and the mode that obtains the non-common signal channel reconstruct in Serving cell chip is specially:
The described Serving cell equalizing signal that the second reconfiguration unit obtains described the first balanced unit carries out descrambling and de-spreading, obtains Serving cell common signal channel symbol; And described Serving cell common signal channel symbol is carried out to non-common signal channel reconstruct symbol is soft to be sentenced, obtain the non-common signal channel reconstruct in Serving cell symbol; And described Serving cell non-common signal channel reconstruct symbol is carried out to spectrum-spreading and scrambling, obtain the non-common signal channel reconstruct chip that Serving cell power surpasses thresholding.
The embodiment of the present invention third aspect discloses a kind of receiver, described receiver comprises the disclosed interference blanking unit of embodiment of the present invention second aspect and the reception antenna being connected with described interference blanking unit, wherein, described reception antenna is used for receiving signal, and described reception signal is inputed to described interference blanking unit.
In the embodiment of the present invention, Serving cell equalizing signal is carried out to the blind reconstruct of Serving cell common signal channel or soft reconstruct, and Serving cell equalizing signal is carried out to can the achieve a butt joint reconstruct of collecting mail number of the non-common channel soft reconstruct in Serving cell and disturb and eliminate, further Serving cell equalizing signal is deducted and make linear disturbance Processing for removing after the non-common signal channel reconstruct of Serving cell common signal channel reconstruct chip and Serving cell chip and can realize in conjunction with reconstruct interference cancellation techniques and linear disturbance technology for eliminating coming the reception signal of receiver to be carried out to interference elimination treatment simultaneously, with only adopt linear disturbance technology for eliminating to carry out interference elimination treatment to compare, the embodiment of the present invention more effectively signal of cancellation receiver is disturbed.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 a is the disclosed a kind of process schematic diagram that disturbs elimination of the embodiment of the present invention;
Fig. 1 b is the flow chart of the disclosed a kind of interference elimination method of the embodiment of the present invention;
Fig. 2 is the disclosed a kind of process schematic diagram that disturbs elimination of the embodiment of the present invention;
Fig. 3 is the process schematic diagram of the disclosed a kind of part iterative interference cancellation of the embodiment of the present invention;
Fig. 4 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Fig. 5 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Fig. 6 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Fig. 7 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Fig. 8 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Fig. 9 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 10 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 11 is the disclosed another kind of process schematic diagram of eliminating that disturbs of the embodiment of the present invention;
Figure 12 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 13 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 14 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 15 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 16 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 17 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 18 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 19 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 20 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 21 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 22 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention;
Figure 23 is the structural representation of the disclosed a kind of interference blanking unit of the embodiment of the present invention;
Figure 24 is the structural representation of the disclosed another kind of interference blanking unit of the embodiment of the present invention;
Figure 25 is the structural representation of the disclosed a kind of iteration interference sections of the embodiment of the present invention;
Figure 26 is the structural representation of the disclosed another kind of interference blanking unit of the embodiment of the present invention;
Figure 27 is the structural representation of the disclosed another kind of iteration interference sections of the embodiment of the present invention;
The structural representation of the disclosed another kind of interference blanking unit of Figure 28 embodiment of the present invention;
The structural representation of the disclosed a kind of receiver of Figure 29 embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of interference elimination method and device, receiver, in this interference elimination method, as shown in Figure 1a, can utilize the balance parameters of Serving cell to make to received signal equilibrium treatment, obtain Serving cell equalizing signal; Serving cell equalizing signal is carried out to the blind reconstruct of Serving cell common signal channel or soft reconstruct, obtain Serving cell common signal channel reconstruct chip (chip is also code signal); And Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell chip, wherein, the non-common signal channel in Serving cell is for received power except service district common channel is over the Serving cell channel of the first default thresholding; Serving cell equalizing signal is deducted to the non-common signal channel reconstruct of Serving cell common signal channel reconstruct chip and Serving cell chip, then make linear disturbance Processing for removing, obtain first order Serving cell echo signal.The embodiment of the present invention can the reception signal of receiver be carried out to interference elimination treatment in conjunction with reconstruct interference cancellation techniques and linear disturbance technology for eliminating simultaneously, thereby more effectively the signal of cancellation receiver disturbs.Wherein, the specific implementation method of linear disturbance Processing for removing is existing introduction in the prior art, for example, and can be referring to WO2007/102897A2, the present embodiment does not illustrate, and the object that linear disturbance is eliminated is exactly to remove the interference that cause the reception signal of Serving cell interfered cell.The echo signal of Yi Ge community is namely carried out linear disturbance and is eliminated the signal that obtains Gai community afterwards.Equilibrium treatment can comprise at least one that do to received signal in frequency domain equalization and time domain equalization.Frequency domain equalization is for eliminating the distortion that receives signal, and time domain equalization is for eliminating the intersymbol interference that receives signal.Serving cell equalizing signal is exactly to do to received signal the result that equilibrium treatment obtains.The reconstruction signal of this community namely does to this cell signal the result that reconstruct obtains.In embodiments of the present invention, can carry out multistage dissimilar computing (linear disturbance elimination, equilibrium treatment or reconstruction processing as described above), obtain echo signal, equalizing signal or the reconstruction signal of multistage different districts (Serving cell or interfered cell).Below be elaborated respectively.
The embodiment of the present invention can be applicable in wireless receiver, as wireless terminal (being also subscriber equipment) or base station etc.In one in embodiment, described wireless receiver disturbs by carrying out the present embodiment method or adopting the structure of follow up device embodiment can realize the signal of cancellation receiver effectively, obtains the result of calculation of the signal of required community.Subscriber equipment sees that the logical described Serving cell common signal channel of crossing is connected with cordless communication network, and except the common signal channel of described Serving cell, other channels between UE and cordless communication network are the non-common signal channels in Serving cell.In the present embodiment, Serving cell is exactly that base station is used for providing for wireless terminal the community of service.Interfered cell is exactly wireless terminal while working in Serving cell, the working signal of this Serving cell is formed to the community of disturbing.
Refer to Fig. 1 b, Fig. 1 b is the flow chart of the disclosed a kind of interference elimination method of the embodiment of the present invention.As shown in Figure 1 b, this interference elimination method can comprise the following steps.
101, utilize the balance parameters of Serving cell to make to received signal equilibrium treatment, obtain Serving cell equalizing signal.
In the embodiment of the present invention, the balance parameters of Serving cell can comprise and the relevant channel estimation results obtaining of known pilot signal of Serving cell, received signal power and the noise power of Serving cell.Correspondingly, can utilize to the relevant channel estimation results obtaining of known pilot signal of Serving cell, received signal power and the noise power of Serving cell and make to received signal equilibrium treatment, to obtain Serving cell equalizing signal.
In the embodiment of the present invention, equilibrium refers to the equilibrium to the characteristic of channel, and the equalizer of receiver produces the characteristic contrary with channel, be used for offsetting channel time become the intersymbol interference that multipath transmisstion characteristic causes.In other words, by equalizer, eliminate the frequency of channel and the selectivity of time.Wherein, equilibrium has two Basic Ways: one for frequency domain equalization, and it makes to comprise that total transfer function of the whole system of equalizer meets the condition of undistorted transmission.It proofreaies and correct respectively amplitude-frequency characteristic and group delay characteristic often, and sequential equilibrium adopts this frequency domain equalization method conventionally.Two is time domain equalization, is exactly directly from time response, to consider, makes to comprise that the impulse response of the whole system of equalizer meets the condition without intersymbol interference.About making to received signal equilibrium treatment, obtain Serving cell equalizing signal, the embodiment of the present invention is follow-up also can be introduced by specific embodiment, is not first described in detail herein.
102, Serving cell equalizing signal is carried out to the blind reconstruct of Serving cell common signal channel or soft reconstruct, obtain Serving cell common signal channel reconstruct chip, and Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain first order Serving cell common signal channel reconstruction signal.
In the embodiment of the present invention, Serving cell common signal channel can comprise following at least one: primary synchronization channel (Primary Synchronization Channel, P-SCH), auxiliary synchronization channel (Secondary Synchronization Channel, S-SCH), Primary Common Pilot Channel (Primary Common Pilot Channel, P-CPICH), Primary Common Control Physical Channel (Primary Common Control Physical Channel, P-CCPCH) and Page Indication Channel (Paging Indicator Channel, PICH) etc.
For instance, in the embodiment of the present invention, the chip carrying respectively due to P-SCH, S-SCH and P-CPICH is known array c
p-SCH.C
s-SCHand c
p-CPICH, it should be noted that, the known array in the present embodiment is predefined sequence in air protocol, and these known arrays are known to terminal in advance.Take P-SCH as example, and Serving cell sends at each time slot of P-SCH the Primary Synchronisation Code C that comprises 256 chips
p-SCH, so that terminal is carried out slot synchronization (for system, the Primary Synchronisation Code of each community is all identical), wherein, c
p-SCHcan also be called PSC code, P-SCH code, main synchronizing sequence etc.For S-SCH, S-SCH is upper, and that send is the auxiliary synchronous code c that comprises 256 chips
s-SCH, each c
s-SCHto choose from 16 different chip sequences, the c sending on S-SCH
s-SCHhave 64 kinds of definite combinations, wherein, c
s-SCHbe called again SSC code, S-SCH code, secondary synchronization sequences etc.Therefore, if when the chip of Serving cell common signal channel carrying is known array, can extract default sequence from the equalizing signal of Serving cell, as: c
p-SCH, c
s-SCHand c
p-CPICH, and according to known array c
p-SHC, c
s-SCHand c
p-CPICHcome reconstruct (being blind reconstruct or soft reconstruct) P-SCH, S-SCH and P-CPICH reconstruct chip.
For instance, in the embodiment of the present invention, the chip carrying due to P-CCPCH, PICH is unknown nucleotide sequence, be that these sequences are not known in terminal realization, therefore, when if the chip of Serving cell common signal channel (comprising P-CCPCH, PICH etc.) carrying is unknown nucleotide sequence, above-mentioned Serving cell equalizing signal is carried out to the blind reconstruct of Serving cell common signal channel or soft reconstruct, obtaining Serving cell common signal channel reconstruct chip can comprise the following steps:
A1, Serving cell equalizing signal is carried out to descrambling and de-spreading, to obtain Serving cell common signal channel symbol.
B1, Serving cell common signal channel symbol is carried out that common signal channel reconstruct symbol is sentenced firmly or softly sentences (how a symbol is done and firmly sentenced or the soft specific implementation of sentencing can be referring to other prior aries), to obtain Serving cell common signal channel reconstruct symbol.
C1, Serving cell common signal channel reconstruct symbol is carried out to spectrum-spreading and scrambling, to obtain Serving cell common signal channel reconstruct chip.
In the embodiment of the present invention, about Serving cell equalizing signal being carried out to the blind reconstruct of Serving cell common signal channel or soft reconstruct, obtain Serving cell common signal channel reconstruct chip, the embodiment of the present invention is follow-up also can be introduced by specific embodiment, is not first described in detail herein.
103, Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell chip, wherein, the non-common signal channel in Serving cell is for received power except service district common channel is over the Serving cell channel of the first default thresholding; And make linear disturbance Processing for removing after Serving cell equalizing signal is deducted to the non-common signal channel reconstruct of Serving cell common signal channel reconstruct chip and Serving cell chip, obtain first order Serving cell echo signal.
In the embodiment of the present invention, non-common signal channel can comprise special signal and shared channel etc.
In the embodiment of the present invention, Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtaining the non-common signal channel reconstruct in Serving cell chip can comprise the following steps:
A2, Serving cell equalizing signal is carried out to descrambling and de-spreading, to obtain Serving cell common signal channel symbol.
B2, Serving cell common signal channel symbol is carried out to non-common signal channel reconstruct symbol is soft to be sentenced, to obtain the non-common signal channel reconstruct in Serving cell symbol.
C2, Serving cell non-common signal channel reconstruct symbol is carried out to spectrum-spreading and scrambling, to obtain the power of Serving cell, surpass the non-common signal channel reconstruct chip of thresholding.
104, make convolution with Serving cell time domain channel impulse response after first order Serving cell echo signal being added to the non-common signal channel reconstruct in Serving cell chip, obtain the non-common signal channel reconstruction signal in first order Serving cell.
As a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps:
A3, utilize the balance parameters of interfered cell to make to received signal equilibrium treatment, obtain interfered cell equalizing signal.
In the embodiment of the present invention, the balance parameters of interfered cell can comprise and the relevant channel estimation results obtaining of known pilot signal of interfered cell, received signal power and the noise power of interfered cell.Correspondingly, can utilize to the relevant channel estimation results obtaining of known pilot signal of interfered cell, received signal power and the noise power of interfered cell and make to received signal equilibrium treatment, to obtain interfered cell equalizing signal.
B3, interfered cell equalizing signal is carried out to the blind reconstruct of interfered cell common signal channel or soft reconstruct, obtain interfered cell common signal channel reconstruct chip, and interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain first order interfered cell common signal channel reconstruction signal.
In the embodiment of the present invention, about interfered cell equalizing signal being carried out to the blind reconstruct of interfered cell common signal channel or soft reconstruct, obtain interfered cell common signal channel reconstruct chip, the embodiment of the present invention is follow-up also can be introduced by specific embodiment, is not first described in detail herein.
In the embodiment of the present invention, interfered cell equalizing signal is carried out to the blind reconstruct of interfered cell common signal channel or soft reconstruct, obtaining interfered cell common signal channel reconstruct chip is and Serving cell equalizing signal is carried out to the blind reconstruct of Serving cell common signal channel or soft reconstruct, obtain Serving cell common signal channel reconstruct chip similar, after the embodiment of the present invention, extended meeting is introduced by specific embodiment, is not first described in detail herein.
Further, as a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps:
A4, interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in interfered cell chip, and make linear disturbance Processing for removing after interfered cell equalizing signal is deducted to the non-common signal channel reconstruct of interfered cell common signal channel reconstruct chip and interfered cell chip, obtain first order interfered cell echo signal; Wherein, the non-common signal channel in interfered cell is the interfered cell channel of received power except the common signal channel of interfered cell over the second default thresholding; Wherein, the second default thresholding can be identical or not identical with the above-mentioned first default thresholding;
B4, make convolution with interfered cell time domain channel impulse response after first order interfered cell echo signal is added to the non-common signal channel reconstruct in interfered cell chip, obtain the non-common signal channel reconstruction signal in first order interfered cell.
For instance, refer to Fig. 2, Fig. 2 is the disclosed a kind of process schematic diagram that disturbs elimination of the embodiment of the present invention.As shown in Figure 2, can make equilibrium treatment to the reception signal r of receiver, obtain respectively Serving cell 1 equalizing signal, interfered cell 2 equalizing signals and interfered cell 3 equalizing signals; Wherein, the reception signal r of receiver is made to equilibrium treatment, the process that obtains Serving cell 1 equalizing signal, interfered cell 2 equalizing signals and interfered cell 3 equalizing signals is specifically as follows:
According to the relevant channel estimation results H obtaining of the known pilot signal to Serving cell 1, interfered cell 2 and interfered cell 3
1, H
2and H
3, the received signal power P of each community
1 (1), P
2 (1)and P
3 (1), and noise power P
n (1), obtain respectively Serving cell 1 equalizing signal x
1 (1), interfered cell 2 equalizing signal x
2 (1)and interfered cell 3 equalizing signal x
3 (1)as follows:
Wherein, ()
trepresenting matrix transposition,
representing matrix conjugate transpose, ()
-1representing matrix is inverted, e
drepresent one except D element be the vector that 1 other element is 0.
Further, in the embodiment of the present invention, obtaining Serving cell 1 equalizing signal x
1 (1), interfered cell 2 equalizing signal x
2 (1)and interfered cell 3 equalizing signal x
3 (1)after, can be according to Serving cell equalizing signal and interfered cell equalizing signal difference reconstruct Serving cell, interfered cell common signal channel reconstruction signal and non-common signal channel reconstruction signal.Wherein, as shown in Figure 2, according in the process of equalizing signal reconstruct Serving cell, Serving cell common signal channel reconstruction signal and non-common signal channel reconstruction signal, need to distinguish reconstruct Serving cell common signal channel reconstruct chip and the non-common signal channel reconstruct in Serving cell chip according to Serving cell equalizing signal.Take WCDMA as example, and common signal channel comprises P-SCH, S-SCH, P-CPICH, P-CCPCH and PICH, but not common signal channel comprises dedicated channel and shared channel.Take Serving cell 1 as example, and due to P-SCH, S-SCH and P-CPICH carrying is known array c
p-SHC, c
p-SHCand c
p-CPICH, so their reconstruction signal is respectively:
r
c1，P-CPICH＝h
1*c
P-CPICH
Wherein,
represent P-SCH reconstruct chip,
represent S-SCH reconstruct chip, h
1represent Serving cell 1 time domain channel impulse response, * represents to do convolution, PO
p-SCHthe power bias that represents the relative P-CPICH of P-SCH, PO
s-SCHthe power bias that represents the relative P-CPICH of S-SCH.Due to the unknown nucleotide sequence of P-CCPCH and PICH carrying, therefore, in the process of reconstruct Serving cell common signal channel reconstruct chip, need to firmly sentence or softly sentence.Take P-CCPCH as example, first to Serving cell equalizing signal x
1 (1)carry out descrambling and de-spreading, to obtain P-CCPCH symbol s
p-CCPCH, that is:
Wherein, c
sc,(n) represent the scrambler of Serving cell 1, c
oVSF, P-CCPCH(n) represent the ovsf code of P-CCPCH, N
p-CCPCHthe spreading factor that represents P-CCPCH.
Then, to s
p-CCPCHfirmly sentence, to obtain P-CCPCH reconstruct symbol
that is:
Wherein, a represents amplitude, d
kthe standard symbol that represents P-CCPCH modulation system used, || represent delivery.
Or, to s
p-CCPCHcarry out softly sentencing, to obtain P-CCPCH reconstruct symbol
that is:
Wherein, K represents the standard symbol number that P-CCPCH modulation system used comprises, and Pr () represents probability.
Secondly, to P-CCPCH reconstruct symbol
carry out spectrum-spreading and scrambling, thereby can obtain P-CCPCH reconstruct chip c
p-CCPCH, that is:
Further, can be by P-CCPCH reconstruct chip c
p-CCPCHwith Serving cell time domain channel impulse response h
1make convolution, obtain first order Serving cell P-CCPCH reconstruction signal r
c1, P-CCPCH, that is:
r
c1，P-CCPCH＝h
1*c
P-CCPCH
Wherein, PO
p-CCPCHthe power bias that represents the relative P-CPICH of P-CCPCH.
In the embodiment of the present invention, similar with reconstruct P-CCPCH reconstruction signal, Serving cell equalizing signal is carried out to descrambling and de-spreading and obtain after the common signal channel symbol of Serving cell, can carry out softly sentencing to Serving cell common signal channel symbol, to obtain the non-common signal channel reconstruct in Serving cell symbol; Further, can carry out spectrum-spreading and scrambling to the non-common signal channel reconstruct of Serving cell merit symbol, to obtain the non-common signal channel reconstruct of Serving cell power chip c
d1, that is:
Wherein, J represents the number of the non-common signal channel in Serving cell, PO
jthe power bias that represents the relative P-CPICH of non-common signal channel j,
represent non-common signal channel j reconstruct symbol, c
oVSF, jthe ovsf code that represents non-common signal channel j, C
sC, 1the scrambler that represents Serving cell 1.
In the embodiment of the present invention, as shown in Figure 2, Serving cell equalizing signal can be deducted to the non-common signal channel reconstruct of Serving cell common signal channel reconstruct chip and Serving cell chip, that is:
Then, to y
1make linear disturbance Processing for removing, i.e. y first
1to descrambling and de-spreading:
Wherein, C
sC, 1the diagonal matrix that represents the scrambler formation of Serving cell 1, W represents that all spreading factors are the matrix of the ovsf code formation of N.
Secondly, add up the power of each code channel, for example, by cumulative mean, add up, that is:
Wherein, z
1nmm the symbol that represents n code channel, M represents cumulative symbolic number.Use again the inverse of each code channel power to the weighting of descrambling and de-spreading result, and add and expand after scrambling from y
1in cut, can obtain the first order Serving cell 1 echo signal y ' after disturb suppressing
1that is:
Wherein, Δ
Δfor λ
1: 1constructible diagonal matrix, μ
1for weight coefficient, and
Finally, by y '
1with the non-common signal channel reconstruct in Serving cell 1 chip c
c1be added rear and Serving cell 1 time domain channel impulse response h
1make convolution, obtain the non-common signal channel reconstruction signal in first order Serving cell 1
that is:
In the embodiment of the present invention, according to the detailed process of equalizing signal reconstruct interfered cell, interfered cell common signal channel reconstruction signal and non-common signal channel reconstruction signal and above-mentioned detailed process according to equalizing signal reconstruct Serving cell, Serving cell common signal channel reconstruction signal and non-common signal channel reconstruction signal, be that similarly the embodiment of the present invention is not described in detail.
As a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps, to realize further iterative interference cancellation, that is:
A5, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in first order interfered cell, obtain Serving cell, second level equalizing signal.
B5, Serving cell, second level equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell, second level chip, and make linear disturbance Processing for removing after Serving cell, second level equalizing signal is deducted to the non-common signal channel reconstruct in Serving cell, second level chip, obtain Serving cell, second level echo signal.
Further, can also comprise:
C5, make convolution with Serving cell time domain channel impulse response after Serving cell, second level echo signal is added to the non-common signal channel reconstruct in Serving cell, second level chip, obtain the non-common signal channel reconstruction signal in Serving cell, the second level.
Further, as a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps, to realize further iterative interference cancellation, that is:
A6, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in first order Serving cell and first order interfered cell, obtain interfered cell, second level equalizing signal;
B6, interfered cell, second level equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in interfered cell, second level chip, and make linear disturbance Processing for removing after interfered cell, second level equalizing signal is deducted to the non-common signal channel reconstruct in interfered cell, second level chip, obtain interfered cell, second level echo signal;
C6, make convolution with interfered cell time domain channel impulse response after interfered cell, second level echo signal is added to the non-common signal channel reconstruct in interfered cell, second level chip, obtain the non-common signal channel reconstruction signal in interfered cell, the second level.
For instance, refer to Fig. 3, Fig. 3 is the process schematic diagram of the disclosed a kind of part iterative interference cancellation of the embodiment of the present invention.As shown in Figure 3, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3), the non-common signal channel reconstruction signal in first order interfered cell (being interfered cell 2 and 3) (is r
o2 (1)and r
o3 (1)) after make equilibrium treatment, obtain Serving cell, the second level 1 equalizing signal
(being N=2), that is:
Wherein, r
e=r-r
c1-r
c2-r
c3 with
serving cell 1 while representing iterative interference cancellation respectively, interfered cell 2 and 3 received signal power.Further, as shown in Figure 3, can be according to Serving cell, the second level 1 non-common signal channel reconstruct chip in Serving cell, the equalizing signal soft reconstruct second level 1, and make linear disturbance Processing for removing after Serving cell, the second level 1 equalizing signal is deducted to the non-common signal channel reconstruct in Serving cell, the second level 1 chip, obtain Serving cell, the second level 1 echo signal; And, Serving cell, the second level 1 echo signal is added after the non-common signal channel reconstruct in Serving cell, the second level 1 chip and Serving cell 1 time domain channel impulse response h
1make convolution, obtain Serving cell, the second level 1 non-common signal channel reconstruction signal r
o1 (2).
As shown in Figure 3, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3), the non-common signal channel reconstruction signal in first order Serving cell 1 (is r
o1 (1)) and and the non-common signal channel reconstruction signal in first order interfered cell 3 (be r
o3 (1)) after make equilibrium treatment, obtain interfered cell, the second level 2 equalizing signals (being N=2).Further, as shown in Figure 3, can be according to interfered cell, the second level 2 non-common signal channel reconstruct chips in interfered cell, the equalizing signal soft reconstruct second level 2, and make linear disturbance Processing for removing after interfered cell, the second level 2 equalizing signals are deducted to the non-common signal channel reconstruct in interfered cell, the second level 2 chip, obtain interfered cell, the second level 2 echo signals; And, interfered cell, the second level 2 echo signals are added after the non-common signal channel reconstruct in interfered cell, the second level 2 chip and interfered cell 2 time domain channel impulse response h
2make convolution, obtain interfered cell, the second level 2 non-common signal channel reconstruction signal r
o2 (2).
As shown in Figure 3, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3), the non-common signal channel reconstruction signal in first order Serving cell 1 (is r
o1 (1)) and and the non-common signal channel reconstruction signal in first order interfered cell 2 (be r
o2 (1)) after make equilibrium treatment, obtain interfered cell, the second level 3 equalizing signals (being N=2).Further, as shown in Figure 3, can be according to interfered cell, the second level 3 non-common signal channel reconstruct chips in interfered cell, the equalizing signal soft reconstruct second level 3, and make linear disturbance Processing for removing after interfered cell, the second level 3 equalizing signals are deducted to the non-common signal channel reconstruct in interfered cell, the second level 3 chip, obtain interfered cell, the second level 3 echo signals; And, interfered cell, the second level 3 echo signals are added after the non-common signal channel reconstruct in interfered cell, the second level 3 chip to the time domain channel impulse response h with interfered cell 3
3make convolution, obtain interfered cell, the second level 3 non-common signal channel reconstruction signal r
o2 (2).
In the part iterative interference cancellation process shown in Fig. 3, identical with the process according to the first order Serving cell non-common signal channel reconstruct in the soft reconstruct of equalizing signal Serving cell chip that embodiment describes above according to the process of Serving cell, the second level non-common signal channel reconstruct in Serving cell, equalizing signal soft reconstruct second level chip, and it is also identical with the process according to the first order interfered cell non-common signal channel reconstruct in the soft reconstruct of equalizing signal interfered cell chip that embodiment describes above according to the process of interfered cell, the second level non-common signal channel reconstruct in interfered cell, equalizing signal soft reconstruct second level chip, and, in the part iterative interference cancellation process shown in Fig. 3, the specific implementation process that linear disturbance is eliminated is identical with the specific implementation process that the linear disturbance that embodiment describes is above eliminated, the embodiment of the present invention does not repeat.
In the embodiment of the present invention, the part iterative interference cancellation process shown in Fig. 3 can repeat several times, and the embodiment of the present invention is not construed as limiting.
For instance, refer to Fig. 4, Fig. 4 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Compare with Fig. 3, Fig. 4 can only carry out the part iterative interference cancellation of interfered cell 2 and 3.As shown in Figure 4, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3), N-1 level Serving cell 1(N is more than or equal to 3 natural number) non-common signal channel reconstruction signal (is r
o1 (N-1)) and the non-common signal channel reconstruction signal in N-1 level interfered cell 3 (be r
o3 (N-1)) after make equilibrium treatment, obtain N level interfered cell 2 equalizing signals; Further, can carry out the non-common channel soft reconstruct in interfered cell to N level interfered cell 2 equalizing signals, obtain the non-common signal channel reconstruct chip in N level interfered cell 2, and make linear disturbance Processing for removing after N level interfered cell 2 equalizing signals are deducted to the non-common signal channel reconstruct chip in N level interfered cell 2, obtain N level interfered cell 2 echo signals; And then, N level interfered cell 2 echo signals can be added after the non-common signal channel reconstruct chip in N level interfered cell 2 and interfered cell 2 time domain channel impulse response h
2make convolution, obtain the non-common signal channel reconstruction signal r in N level interfered cell 2
o2 (N).
As shown in Figure 4, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3), N-1 level Serving cell 1(N is more than or equal to 2 natural number) non-common signal channel reconstruction signal (be r
o1 (N-1)) and the non-common signal channel reconstruction signal in N-1 level interfered cell 2 (be r
o2 (N-1)) after make equilibrium treatment, obtain N level interfered cell 3 equalizing signals; Further, can carry out the non-common channel soft reconstruct in interfered cell to N level interfered cell 3 equalizing signals, obtain the non-common signal channel reconstruct chip in N level interfered cell 3, and make linear disturbance Processing for removing after N level interfered cell 3 equalizing signals are deducted to the non-common signal channel reconstruct chip in N level interfered cell 3, obtain N level interfered cell 3 echo signals; And then, N level interfered cell 3 echo signals can be added after the non-common signal channel reconstruct chip in N level interfered cell 3 and interfered cell 3 time domain channel impulse response h
3make convolution, obtain the non-common signal channel reconstruction signal r in N level interfered cell 3
o3 (N).
In the embodiment of the present invention, the part iterative interference cancellation process shown in Fig. 4 can repeat several times, and the embodiment of the present invention is not construed as limiting.
Further, as a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps, to realize further iterative interference cancellation, that is:
A7, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N level interfered cell, obtain N+1 level Serving cell equalizing signal;
B7, N+1 level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+1 level Serving cell chip, and N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+1 level Serving cell target.
For instance, refer to Fig. 5, Fig. 5 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Fig. 5 can only carry out the part iterative interference cancellation of Serving cell 1.As shown in Figure 5, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3), the non-common signal channel reconstruction signal in N level interfered cell (being interfered cell 2 and 3) (is r
o2 (N)and r
o3 (N)) after make equilibrium treatment, obtain N+1 level Serving cell 1 equalizing signal
that is:
Wherein, r
e=r-r
c1-r
c2-r
c3.
with
serving cell 1 while representing iterative interference cancellation respectively, interfered cell 2 and 3 signal power.Further, as shown in Figure 5, can be according to N+1 level Serving cell 1 equalizing signal
reconstruct (being blind reconstruct or soft reconstruct) the non-common signal channel reconstruct chip in N+1 level Serving cell 1
particularly, can be to N+1 level Serving cell 1 equalizing signal
carry out following descrambling and de-spreading, that is:
Wherein, N represents spreading factor, when the non-common signal channel over thresholding exists, to the non-common signal channel existing, uses the method for mating with standard constellation to detect the modulation system that may use, if modulation system can not be detected, obtain blind reconstruct symbol (being non-common signal channel reconstruct symbol):
If modulation system can be detected, obtain soft reconstruct symbol (being non-common signal channel reconstruct symbol):
Reconstruct symbol obtained above (being non-common signal channel reconstruct symbol) is added to expansion scrambling, to obtain the non-common signal channel reconstruct chip of N+1 level Serving cell 1
that is:
Finally, can be by the non-common signal channel reconstruct chip in N+1 level Serving cell 1
with Serving cell 1 time domain channel impulse response h
1make convolution, obtain N+1 level Serving cell 1 echo signal
that is:
Further, as a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps, to realize further iterative interference cancellation, that is:
A8, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of N+1 level Serving cell echo signal and N level interfered cell, obtain N+2 level interfered cell equalizing signal;
B8, N+2 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+2 level interfered cell chip, and N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+2 level interfered cell.
For instance, refer to Fig. 6, Fig. 6 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Fig. 6 can only carry out the part iterative interference cancellation of interfered cell 2.As shown in Figure 6, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3), N+1 level Serving cell 1 echo signal r
o1 (N+1)and the non-common signal channel reconstruction signal r in N level interfered cell 3
o3 (N)after make equilibrium treatment, obtain N+2 level interfered cell 2 equalizing signals, and according to N+2 level interfered cell 2 equalizing signal reconstruct (being blind reconstruct or soft reconstruct) the non-common signal channel reconstruct chip in N+2 level interfered cell 2, and by N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell 2 time domain channel impulse response h
2make convolution, obtain the non-common signal channel reconstruction signal r in N+2 level interfered cell 2
o2 (N+2).
Further, as a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps, to realize further iterative interference cancellation, that is:
A9, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of N+1 level Serving cell echo signal and N+2 level interfered cell, obtain N+3 level interfered cell equalizing signal;
B9, to the blind reconstruct of the non-common signal channel in equalizing signal interfered cell, N+3 level interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+3 level interfered cell chip, and N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+3 level interfered cell.
For instance, refer to Fig. 7, Fig. 7 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Fig. 7 can only carry out the part iterative interference cancellation of interfered cell 3.As shown in Figure 7, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3) (be r
c), N+1 level Serving cell 1 echo signal r
o1 (N+1)and the non-common signal channel reconstruction signal r in N+2 level interfered cell 2
o2 (N+2)after make equilibrium treatment, obtain N+3 level interfered cell 3 equalizing signals, and according to N+3 level interfered cell 3 equalizing signal reconstruct (being blind reconstruct or soft reconstruct) the non-common signal channel reconstruct chip in N+3 level interfered cell 3, and by N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell 3 time domain channel impulse response h
3make convolution, obtain the non-common signal channel reconstruction signal r in N+3 level interfered cell 3
o3 (N+3).
Further, as a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps, to realize further iterative interference cancellation, that is:
A10, after being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in N+2 level interfered cell and the non-common signal channel reconstruction signal in N+3 level interfered cell, reception signal makes equilibrium treatment, to obtain N+4 level Serving cell equalizing signal;
B10, carry out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct after N+4 level Serving cell equalizing signal being added to the non-common signal channel reconstruct chip of N+1 level Serving cell, obtain the non-common signal channel reconstruct chip of N+4 level Serving cell, and N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+4 level Serving cell echo signal.
For instance, refer to Fig. 8, Fig. 8 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Fig. 8 can only carry out the part iterative interference cancellation of Serving cell 1.As shown in Figure 8, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3), N+1 level Serving cell 1 echo signal r
o1 (N+1), the non-common signal channel reconstruction signal r in N+2 level interfered cell 2
o2 (N+2)and the non-common signal channel reconstruction signal r in N+3 level interfered cell 3
o3 (N+3)after make equilibrium treatment, obtain N+4 level Serving cell 1 equalizing signal, and N+4 level Serving cell equalizing signal added to the non-common signal channel reconstruct in N+1 level Serving cell chip c
1 (N+1)after carry out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+4 level Serving cell chip c
1 (N+4), and by N+4 level Serving cell 1 non-common signal channel reconstruct chip c
1 (N+4)with Serving cell 1 time domain channel impulse response h
1make convolution, obtain N+4 level Serving cell 1 echo signal r
o1 (N+4).
Further, as a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps, to realize further iterative interference cancellation, that is:
A11, after being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in N+2 level interfered cell and the non-common signal channel reconstruction signal in N+3 level interfered cell, reception signal makes equilibrium treatment, to obtain N+5 level interfered cell equalizing signal;
B11, after being added to the non-common signal channel reconstruction signal in N+2 level interfered cell, N+5 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+5 level interfered cell chip, and N+5 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+5 level interfered cell.
For instance, refer to Fig. 9, Fig. 9 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Fig. 9 can only carry out the part iterative interference cancellation of interfered cell 2.As shown in Figure 9, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3), N+4 level Serving cell 1 echo signal r
o1 (N+4), the non-common signal channel reconstruction signal r in N+2 level interfered cell 2
o2 (N+2)and the non-common signal channel reconstruction signal r in N+3 level interfered cell 3
o3 (N+3)after make equilibrium treatment, obtain N+5 level interfered cell 2 equalizing signals, and N+5 level interfered cell 2 equalizing signals added to N+2 level interfered cell 2 non-common signal channel reconstruct chip c
2 (N+2)after carry out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain N+5 level interfered cell 2 non-common signal channel reconstruct chip c
2 (N+5), and by N+5 level interfered cell 2 non-common signal channel reconstruct chip c
2 (N+5)with interfered cell 2 time domain channel impulse response h
2make convolution, obtain the non-common signal channel reconstruction signal r in N+5 level interfered cell 2
o2 (N+5).
Further, as a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps, to realize further iterative interference cancellation, that is:
A12, after being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in N+5 level interfered cell and the non-common signal channel reconstruction signal in N+3 level interfered cell, reception signal makes equilibrium treatment, to obtain N+6 level interfered cell equalizing signal;
B12, after being added to the non-common signal channel reconstruction signal in N+3 level interfered cell, N+6 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct chip of N+6 level interfered cell, and N+6 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+6 level interfered cell.
For instance, refer to Figure 10, Figure 10 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Figure 10 can only carry out the part iterative interference cancellation of interfered cell 3.As shown in figure 10, reception signal r can be deducted to first order Serving cell 1 common signal channel reconstruction signal (is r
c1), first order interfered cell (being interfered cell 2 and 3) common signal channel reconstruction signal (is r
c2and r
c3), N+4 level Serving cell 1 echo signal r
o1 (N+4), the non-common signal channel reconstruction signal r in N+5 level interfered cell 2
o2 (N+5)and the non-common signal channel reconstruction signal r in N+3 level interfered cell 3
o3 (N+3)after make equilibrium treatment, obtain N+6 level interfered cell 3 equalizing signals, and N+6 level interfered cell 3 equalizing signals added to N+3 level interfered cell 3 non-common signal channel reconstruct chip c
3 (N+3)after carry out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain N+6 level interfered cell 3 non-common signal channel reconstruct chip c
3 (N+6), and by N+6 level interfered cell 3 non-common signal channel reconstruct chip c
3 (N+6)with interfered cell 3 time domain channel impulse response h
3make convolution, obtain the non-common signal channel reconstruction signal r in N+6 level interfered cell 3
o3 (N+6).
Further, as a kind of optional execution mode, the described interference elimination method of Fig. 1 can also comprise the following steps, to realize further iterative interference cancellation, that is:
A12 ', make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N+5 level interfered cell and the non-common signal channel reconstruction signal in N+6 level interfered cell, obtain N+7 level Serving cell equalizing signal;
B12 ', after being added to the non-common signal channel reconstruct in N+1 level Serving cell chip, N+7 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+7 level Serving cell chip, and N+7 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+7 level Serving cell echo signal.
In the embodiment of the present invention, the part iterative interference cancellation process shown in Fig. 2～Figure 10 all can repeat several times, and the embodiment of the present invention is not construed as limiting.
Refer to Figure 11, Figure 11 is the disclosed another kind of process schematic diagram of eliminating that disturbs of the embodiment of the present invention.As shown in figure 11, can utilize respectively the balance parameters of Serving cell, the balance parameters of interfered cell to received signal r make equilibrium treatment, obtain respectively Serving cell 1 equalizing signal x
1 (1), interfered cell 2 equalizing signal x
2 (1)and interfered cell 3 equalizing signal x
3 (1), and then can be respectively according to Serving cell 1 equalizing signal x
1 (1), interfered cell 2 equalizing signal x
2 (1)and interfered cell 3 equalizing signal x
3 (1)reconstruct Serving cell 1 common signal channel reconstruct chip, interfered cell 2 common signal channel reconstruct chips and interfered cell 3 common signal channel reconstruct chips, and, can be by Serving cell 1 common signal channel reconstruct chip and Serving cell 1 time domain channel impulse response h
1make convolution, and by interfered cell 2 common signal channel reconstruct chips and interfered cell 2 time domain channel impulse response h
2make convolution, and by interfered cell 3 common signal channel reconstruct chips and interfered cell 3 time domain channel impulse response h
3make convolution, thereby obtain first order Serving cell 1, first order interfered cell 2 and first order interfered cell 3 common signal channel reconstruction signals.Wherein, in the interference cancellation process shown in Figure 11, adopt r '
cthe summation that represents the common signal channel reconstruction signal of first order Serving cell 1, first order interfered cell 2 and first order interfered cell 3, the embodiment of the present invention is follow-up not to be repeated.
In the embodiment of the present invention, in the interference cancellation process shown in Figure 11, can also be to Serving cell 1 equalizing signal x
1 (1)carry out the non-common channel soft reconstruct in Serving cell 1, obtain the non-common signal channel reconstruct in Serving cell 1 chip c
d1, and by Serving cell 1 equalizing signal x
1 (1)deduct Serving cell 1 common signal channel reconstruct chip and the non-common signal channel reconstruct in Serving cell 1 chip c
d1after make linear disturbance Processing for removing, obtain first order Serving cell 1 echo signal, first order Serving cell 1 echo signal can be added to the non-common signal channel reconstruct in Serving cell 1 chip c further
d1afterwards with Serving cell 1 time domain channel impulse response h
1make convolution, obtain first order Serving cell non-common signal channel reconstruction signal r '
o1 (1).
As a kind of optional execution mode, on the basis of eliminating in the interference shown in Figure 11, the embodiment of the present invention can be carried out following steps, to realize further iterative interference cancellation, that is:
A13, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in first order Serving cell, obtain interfered cell, second level equalizing signal;
B13, interfered cell, second level equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in interfered cell, second level chip, and make linear disturbance Processing for removing after interfered cell, second level equalizing signal is deducted to the non-common signal channel reconstruct in interfered cell, second level chip, obtain interfered cell, second level echo signal; Wherein, the non-common signal channel in interfered cell is the interfered cell channel of received power except the common signal channel of interfered cell over the second default thresholding;
C13, make convolution with interfered cell time domain channel impulse response after interfered cell, second level echo signal is added to the non-common signal channel reconstruct in interfered cell, second level chip, obtain the non-common signal channel reconstruction signal in interfered cell, the second level.
For instance, refer to Figure 12, Figure 12 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Figure 12 can only carry out the part iterative interference cancellation of interfered cell 2.As shown in figure 12, can deduct r ' by receiving signal r
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), first order Serving cell 1 non-common signal channel reconstruction signal r '
o1 (1)after make equilibrium treatment, obtain interfered cell, the second level 2 equalizing signals;
And, interfered cell, the second level 2 equalizing signals are carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in interfered cell, the second level 2 chip, and make linear disturbance Processing for removing after interfered cell, the second level 2 equalizing signals are deducted to the non-common signal channel reconstruct in interfered cell, the second level 2 chip, obtain interfered cell, the second level 2 echo signals;
And, interfered cell, the second level 2 echo signals are added after the non-common signal channel reconstruct in interfered cell, the second level 2 chip and interfered cell 2 time domain channel impulse response h
2make convolution, obtain interfered cell, the second level 2 non-common signal channel reconstruction signal r '
o2 (1).
Further, as a kind of optional execution mode, the embodiment of the present invention can further be carried out following steps, to realize further iterative interference cancellation, that is:
A14, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in first order Serving cell and interfered cell, the second level, obtain third level interfered cell equalizing signal;
B14, third level interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in third level interfered cell chip, and make linear disturbance Processing for removing after third level interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in third level interfered cell chip, obtain third level interfered cell echo signal;
C14, make convolution with interfered cell time domain channel impulse response after third level interfered cell echo signal is added to the non-common signal channel reconstruct in third level interfered cell chip, obtain the non-common signal channel reconstruction signal in third level interfered cell.
For instance, refer to Figure 13, Figure 13 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Figure 13 can only carry out the part iterative interference cancellation of interfered cell 3.As shown in figure 13, can deduct r ' by receiving signal r
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), first order Serving cell 1 non-common signal channel reconstruction signal r '
o1 (1)and interfered cell, the second level 2 non-common signal channel reconstruction signal r '
o2 (1)after make equilibrium treatment, obtain third level interfered cell 3 equalizing signals;
And, third level interfered cell 3 equalizing signals are carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in third level interfered cell 3 chip, and make linear disturbance Processing for removing after third level interfered cell 3 equalizing signals are deducted to the non-common signal channel reconstruct in third level interfered cell 3 chip, obtain third level interfered cell 3 echo signals;
And, third level interfered cell 3 echo signals are added after the non-common signal channel reconstruct in third level interfered cell 3 chip and interfered cell 3 time domain channel impulse response h
3make convolution, obtain third level interfered cell 3 non-common signal channel reconstruction signal r '
o3 (1).
Further, as a kind of optional execution mode, the embodiment of the present invention can further be carried out following steps, to realize further iterative interference cancellation, that is:
A15, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in interfered cell, the second level and third level interfered cell, obtain fourth stage Serving cell equalizing signal.
B15, fourth stage Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in fourth stage Serving cell chip, and make linear disturbance Processing for removing after fourth stage Serving cell equalizing signal is deducted to the non-common signal channel reconstruct in fourth stage Serving cell chip, obtain fourth stage Serving cell echo signal.
Further, can also carry out following steps, to realize further iterative interference cancellation:
C15, make convolution with Serving cell time domain channel impulse response after fourth stage Serving cell echo signal is added to the non-common signal channel reconstruct in fourth stage Serving cell chip, obtain the non-common signal channel reconstruction signal in fourth stage Serving cell.
For instance, refer to Figure 14, Figure 14 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Figure 14 can only carry out the part iterative interference cancellation of Serving cell 1.As shown in figure 14, can deduct r ' by receiving signal r
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), interfered cell, the second level 2 non-common signal channel reconstruction signal r '
o2 (1)and third level interfered cell 3 non-common signal channel reconstruction signal r '
o3 (1)after make equilibrium treatment, obtain fourth stage Serving cell 1 equalizing signal;
And, fourth stage Serving cell 1 equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in fourth stage Serving cell 1 chip, and make linear disturbance Processing for removing after fourth stage Serving cell 1 equalizing signal is deducted to the non-common signal channel reconstruct in fourth stage Serving cell 1 chip, obtain fourth stage Serving cell 1 echo signal;
Further, fourth stage Serving cell 1 echo signal can also be added after the non-common signal channel reconstruct in fourth stage Serving cell 1 chip and Serving cell 1 time domain channel impulse response h
1make convolution, obtain fourth stage Serving cell 1 non-common signal channel reconstruction signal r '
o1 (2).
Further, as a kind of optional execution mode, the embodiment of the present invention can further be carried out following steps, to realize further iterative interference cancellation, that is:
A16, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in fourth stage Serving cell and the non-common channel signal in third level interfered cell, obtain level V interfered cell equalizing signal;
B16, level V interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in level V interfered cell chip, and make linear disturbance Processing for removing after level V interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in level V interfered cell chip, obtain level V interfered cell echo signal;
C16, make convolution with interfered cell time domain channel impulse response after level V interfered cell echo signal is added to the non-common signal channel reconstruct in level V interfered cell chip, obtain the non-common signal channel reconstruction signal in level V interfered cell.
For instance, refer to Figure 15, Figure 15 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Figure 15 can only carry out the part iterative interference cancellation of interfered cell 2.As shown in figure 15, can deduct r ' by receiving signal r
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), fourth stage Serving cell 1 non-common signal channel reconstruction signal r '
o1 (2)and third level interfered cell 3 non-common signal channel reconstruction signal r '
o3 (1)after make equilibrium treatment, obtain level V interfered cell 2 equalizing signals;
And, level V interfered cell 2 equalizing signals are carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in level V interfered cell 2 chip, and make linear disturbance Processing for removing after level V interfered cell 2 equalizing signals are deducted to the non-common signal channel reconstruct in level V interfered cell 2 chip, obtain level V interfered cell 2 echo signals;
And, level V interfered cell 2 echo signals are added after the non-common signal channel reconstruct in level V interfered cell 2 chip and interfered cell 2 time domain channel impulse response h
2make convolution, obtain level V interfered cell 2 non-common signal channel reconstruction signal r '
o2 (2).
Further, as a kind of optional execution mode, the embodiment of the present invention can further be carried out following steps, to realize further iterative interference cancellation, that is:
A17, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in fourth stage Serving cell and the non-common channel signal in level V interfered cell, obtain the 6th grade of interfered cell equalizing signal;
B17, the 6th grade of interfered cell equalizing signal carried out to the non-common channel soft reconstruct in interfered cell, obtain the 6th grade of non-common signal channel reconstruct in interfered cell chip, and make linear disturbance Processing for removing after the 6th grade of interfered cell equalizing signal deducted to the 6th grade of non-common signal channel reconstruct in interfered cell chip, obtain the 6th grade of interfered cell echo signal;
C17, make convolution with interfered cell time domain channel impulse response after the 6th grade of interfered cell echo signal added to the 6th grade of non-common signal channel reconstruct in interfered cell chip, obtain the 6th grade of non-common signal channel reconstruction signal in interfered cell.
For instance, refer to Figure 16, Figure 16 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Figure 16 can only carry out the part iterative interference cancellation of interfered cell 3.As shown in figure 16, can deduct r ' by receiving signal r
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), fourth stage Serving cell 1 non-common signal channel reconstruction signal r '
o1 (2)and level V interfered cell 2 non-common signal channel reconstruction signal r '
o2 (2)after make equilibrium treatment, obtain the 6th grade of interfered cell 3 equalizing signals;
And, the 6th grade of interfered cell 3 equalizing signals are carried out to the non-common channel soft reconstruct in interfered cell, obtain the 6th grade of non-common signal channel reconstruct in interfered cell 3 chip, and make linear disturbance Processing for removing after the 6th grade of interfered cell 3 equalizing signals are deducted to the 6th grade of non-common signal channel reconstruct in interfered cell 3 chip, obtain the 6th grade of interfered cell 3 echo signals;
And, the 6th grade of interfered cell 3 echo signals are added after the 6th grade of non-common signal channel reconstruct in interfered cell 3 chip and interfered cell 3 time domain channel impulse response h
3make convolution, obtain the 6th grade of interfered cell 3 non-common signal channel reconstruction signal r '
o3 (2).
Further, as a kind of optional execution mode, the embodiment of the present invention can further be carried out following steps, to realize further iterative interference cancellation, that is:
A17 ', make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in level V interfered cell and the 6th grade of non-common signal channel reconstruction signal in interfered cell, obtain the 7th grade of Serving cell equalizing signal;
B17 ', the 7th grade of Serving cell equalizing signal carried out to the non-common channel soft reconstruct in Serving cell, obtain the 7th grade of non-common signal channel reconstruct in Serving cell chip, and make linear disturbance Processing for removing after the 7th grade of Serving cell equalizing signal deducted to the 7th grade of non-common signal channel reconstruct in Serving cell chip, obtain the 7th grade of Serving cell echo signal.
Further, as a kind of optional execution mode, the embodiment of the present invention can further be carried out following steps, to realize further iterative interference cancellation, that is:
A18, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of first order interfered cell common signal channel reconstruction signal and N-1 level interfered cell, obtain N level Serving cell equalizing signal; Wherein, N is more than or equal to 3 natural number;
B18, N level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N level Serving cell chip, and N level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N level Serving cell echo signal.
For instance, refer to Figure 17, Figure 17 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Figure 17 can only carry out the part iterative interference cancellation of Serving cell 1.As shown in figure 17, can deduct r ' by receiving signal r
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), the non-common signal channel reconstruction signal r ' in N-1 level interfered cell 2
o2 (N-1)and the non-common signal channel reconstruction signal r ' in N-1 level interfered cell 3
o3 (N-1)after make equilibrium treatment, obtain N level Serving cell 1 equalizing signal;
And, N level Serving cell 1 equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain N level Serving cell 1 non-common signal channel reconstruct chip c '
1 (N), and by N level Serving cell 1 non-common signal channel reconstruct chip c '
1 (N)with Serving cell 1 time domain channel impulse response h
1make convolution, obtain N level Serving cell 1 echo signal r '
o1 (N).
Further, as a kind of optional execution mode, the embodiment of the present invention can further be carried out following steps, to realize further iterative interference cancellation, that is:
A19, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N-1 level interfered cell and N level Serving cell echo signal, obtain N level interfered cell equalizing signal;
B19, N level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N level interfered cell chip, and N level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N level interfered cell.
For instance, refer to Figure 18, Figure 18 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Figure 18 can only carry out the part iterative interference cancellation of interfered cell 2.As shown in figure 18, can deduct r ' by receiving signal r
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), the non-common signal channel reconstruction signal r ' in N-1 level interfered cell 3
o3 (N-1)and N level Serving cell 1 echo signal r '
o1 (N)after make equilibrium treatment, obtain N level interfered cell 2 equalizing signals;
And, N level interfered cell 2 equalizing signals are carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain N level interfered cell 2 non-common signal channel reconstruct chip c '
2 (N), and by N level interfered cell 2 non-common signal channel reconstruct chip c '
2 (N)with interfered cell 2 time domain channel impulse response h
2make convolution, obtain the non-common signal channel reconstruction signal r ' in N level interfered cell 2
o2 (N).
Further, as shown in figure 19, the embodiment of the present invention can further be carried out the part iterative interference cancellation of interfered cell 3, that is:
Reception signal r is deducted to r '
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), the non-common signal channel reconstruction signal r ' in N level interfered cell 2
o2 (N)and N level Serving cell 1 echo signal r '
o1 (N)after make equilibrium treatment, obtain N+1 level interfered cell 3 equalizing signals;
And, N+1 level interfered cell 3 equalizing signals are carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain N+1 level interfered cell 3 non-common signal channel reconstruct chip c '
3 (N+1), and by N+1 level interfered cell 3 non-common signal channel reconstruct chip c '
3 (N+1)with interfered cell 3 time domain channel impulse response h
3make convolution, obtain the non-common signal channel reconstruction signal r ' in N+1 level interfered cell 3
o3 (N+1).
Further, as a kind of optional execution mode, the embodiment of the present invention can further be carried out following steps, to realize further iterative interference cancellation, that is:
A20, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N level interfered cell, the non-common signal channel reconstruction signal of N level Serving cell echo signal and N+1 level interfered cell, obtain N+1 level Serving cell equalizing signal;
B20, after being added to the non-common signal channel reconstruct in N level Serving cell chip, N+1 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+1 level Serving cell chip, and N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+1 level Serving cell echo signal.
For instance, refer to Figure 20, Figure 20 is the process schematic diagram of the disclosed another kind of iterative interference cancellation of the embodiment of the present invention.Wherein, Figure 20 can only carry out the part iterative interference cancellation of Serving cell 1.As shown in figure 20, can deduct r ' by receiving signal r
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), the non-common signal channel reconstruction signal r ' in N level Serving cell 1
o1 (N), the non-common signal channel reconstruction signal r ' in N level interfered cell 2
o2 (N)and the non-common signal channel reconstruction signal r ' in N+1 level interfered cell 3
o3 (N+1)after make equilibrium treatment, obtain N+1 level Serving cell 1 equalizing signal;
And, N+1 level Serving cell 1 equalizing signal is added to N level Serving cell 1 non-common signal channel reconstruct chip c '
1 (N)after carry out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain N+1 level Serving cell 1 non-common signal channel reconstruct chip c '
1 (N+1), and by N+1 level Serving cell 1 non-common signal channel reconstruct chip c '
1 (N+1)with Serving cell 1 time domain channel impulse response h
1make convolution, obtain N+1 level Serving cell 1 echo signal r '
o1 (N+1).
Further, as a kind of optional execution mode, the embodiment of the present invention can further be carried out following steps, to realize further iterative interference cancellation, that is:
A21, after receiving signal and deduct the non-common signal channel reconstruction signal of non-common signal channel reconstruction signal and N+1 level interfered cell of first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, N+1 level Serving cell echo signal, N level interfered cell, make equilibrium treatment, obtain N+2 level interfered cell equalizing signal;
B21, after being added to the non-common signal channel reconstruct in N level interfered cell chip, N+2 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+2 level interfered cell chip, and N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+2 level interfered cell.
For instance, refer to Figure 21, Figure 21 is the process schematic diagram of the disclosed another kind of part iterative interference cancellation of the embodiment of the present invention.Wherein, Figure 21 can only carry out the part iterative interference cancellation of interfered cell 2.As shown in figure 21, can deduct r ' by receiving signal r
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), N+1 level Serving cell 1 echo signal r '
o1 (N+1), the non-common signal channel reconstruction signal r ' in N level interfered cell 2
o2 (N)and the non-common signal channel reconstruction signal r ' in N+1 level interfered cell 3
o3 (N+1)after make equilibrium treatment, obtain N+2 level interfered cell 2 equalizing signals;
And, N+2 level interfered cell 2 equalizing signals are added to N level interfered cell 2 non-common signal channel reconstruct chip c '
2 (N)after carry out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain N+2 level interfered cell 2 non-common signal channel reconstruct chip c '
2 (N+2), and by N+2 level interfered cell 2 non-common signal channel reconstruct chip c '
2 (N+2)with interfered cell 2 time domain channel impulse response h
2make convolution, obtain the non-common signal channel reconstruction signal r ' in N+2 level interfered cell 2
o2 (N+2).
Further, as shown in figure 22, the embodiment of the present invention can further be carried out the part iterative interference cancellation of interfered cell 3, that is:
Reception signal r is deducted to r '
c(being the summation of first order Serving cell 1 common signal channel reconstruction signal, first order interfered cell 2 common signal channel reconstruction signals and first order interfered cell 3 common signal channel reconstruction signals), N+1 level Serving cell 1 echo signal r '
o1 (N+1), the non-common signal channel reconstruction signal r ' in N+2 level interfered cell 2
o2 (N+2)and the non-common signal channel reconstruction signal r ' in N+1 level interfered cell 3
o3 (N+1)after make equilibrium treatment, obtain N+3 level interfered cell 3 equalizing signals;
And, N+3 level interfered cell 3 equalizing signals are added to N level interfered cell 3 non-common signal channel reconstruct chip c '
3 (N)after carry out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain N+3 level interfered cell 3 non-common signal channel reconstruct chip c '
3 (N+3), and by N+3 level interfered cell 3 non-common signal channel reconstruct chip c '
3 (N+3)with interfered cell 3 time domain channel impulse response h
3make convolution, obtain the non-common signal channel reconstruction signal r ' in N+3 level interfered cell 3
o3 (N+3).
Further, the embodiment of the present invention can further be carried out the part iterative interference cancellation of Serving cell, that is:
A22, make equilibrium treatment after reception signal is deducted to first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of first order interfered cell common signal channel reconstruction signal and N+2 level interfered cell, the non-common signal channel reconstruction signal in N+3 level interfered cell, obtain N+4 level Serving cell equalizing signal;
B22, after being added to the non-common signal channel reconstruct in N level Serving cell chip, N+4 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+4 level Serving cell chip, and N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+4 level Serving cell echo signal.
In the embodiment of the present invention, the iterative interference cancellation process shown in Figure 20～Figure 22 all can repeat several times, and the embodiment of the present invention is not construed as limiting.
Above the disclosed interference elimination method of the embodiment of the present invention be have been described in detail, the embodiment of the present invention can the reception signal of receiver be carried out to interference elimination treatment in conjunction with reconstruct interference cancellation techniques and linear disturbance technology for eliminating simultaneously, with only adopt linear disturbance technology for eliminating to carry out interference elimination treatment to compare, the embodiment of the present invention more effectively signal of cancellation receiver is disturbed.
In addition, the disclosed interference of the embodiment of the present invention is eliminated and can be carried out iterative interference cancellation, and along with disturbing the iteration of eliminating to carry out, the embodiment of the present invention can improve signal to noise ratio step by step, thereby can obtain better interference eradicating efficacy.
Refer to Figure 23, Figure 23 is the structure chart of the disclosed a kind of interference blanking unit of the embodiment of the present invention.This interference blanking unit can be applied to receiver, signal receiver, device and system, and the embodiment of the present invention is not construed as limiting.As shown in figure 23, this interference blanking unit can comprise:
The first balanced unit 2301, for utilizing the balance parameters of Serving cell to make to received signal equilibrium treatment, obtains Serving cell equalizing signal;
The first reconfiguration unit 2302, carries out the blind reconstruct of Serving cell common signal channel or soft reconstruct for the Serving cell equalizing signal that the first balanced unit 2301 is obtained,, obtain Serving cell common signal channel reconstruct chip;
The second reconfiguration unit 2303, for the Serving cell equalizing signal that the first balanced unit 2301 is obtained, carry out the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell chip, wherein, the non-common signal channel in Serving cell is for received power except service district common channel is over the Serving cell channel of the first default thresholding;
The first computing unit 2304, for the Serving cell equalizing signal that the first balanced unit 2301 is obtained, deduct the non-common signal channel reconstruct in the Serving cell chip that Serving cell common signal channel reconstruct chip that the first reconfiguration unit 2302 obtains and the second reconfiguration unit 2303 obtain, and export the first residual signal;
The first linear interference cancellation unit 2305, for the first residual signal of the first computing unit 2304 outputs is made to linear disturbance Processing for removing, obtains first order Serving cell echo signal.
See also Figure 24, Figure 24 is the structural representation of the another kind of interference blanking unit that obtains after being optimized by the interference blanking unit shown in Figure 23.Compare with the interference blanking unit shown in Figure 23, the interference blanking unit shown in Figure 24 can also comprise iterative interference cancellation part, in order to realize further iterative interference cancellation.Wherein, the iterative interference cancellation part that the interference blanking unit shown in Figure 24 comprises can comprise:
First volume product unit 2306, makes convolution for Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response that the first reconfiguration unit 2302 is obtained, obtains first order Serving cell common signal channel reconstruction signal;
The second computing unit 2307, adds for the first order Serving cell echo signal that the first linear interference cancellation unit 2305 is obtained the non-common signal channel reconstruct in the Serving cell chip that the second reconfiguration unit obtains, and exports the first cumulative signal;
Volume Two product unit 2308, for the first cumulative signal and the Serving cell time domain channel impulse response of the second computing unit 2307 outputs are made to convolution, obtains the non-common signal channel reconstruction signal in first order Serving cell.
As a kind of optional execution mode, in the interference blanking unit shown in Figure 24:
The first above-mentioned balanced unit 2301, also for utilizing the balance parameters of interfered cell to make to received signal equilibrium treatment, obtains interfered cell equalizing signal;
The first above-mentioned reconfiguration unit 2302, also carries out the blind reconstruct of interfered cell common signal channel or soft reconstruct for the interfered cell equalizing signal that the first balanced unit 2301 is obtained, and obtains interfered cell common signal channel reconstruct chip;
Above-mentioned first volume product unit 2306, also makes convolution for interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response that the first reconfiguration unit 2302 is obtained, obtains first order interfered cell common signal channel reconstruction signal;
Correspondingly, the iterative interference cancellation of the interference blanking unit shown in Figure 24 part can also comprise:
The 3rd computing unit 2309, for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in first order Serving cell, and exports the second residual signal;
The second balanced unit 2310, for the second residual signal is made to equilibrium treatment, obtains interfered cell, second level equalizing signal;
The 4th computing unit 2312, for interfered cell, second level equalizing signal being deducted to the non-common signal channel reconstruct in interfered cell, second level chip, and exports the 3rd residual signal;
The second linear disturbance is eliminated unit 2313, for the 3rd residual signal is made to linear disturbance Processing for removing, obtains interfered cell, second level echo signal; Wherein, the non-common signal channel in interfered cell is the interfered cell channel of received power except the common signal channel of interfered cell over the second default thresholding;
The 5th computing unit 2314, for interfered cell, second level echo signal being added to the non-common signal channel reconstruct in interfered cell, second level chip, and exports the second cumulative signal;
The 3rd convolution unit 2315, for the second cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in interfered cell, the second level;
The 3rd above-mentioned computing unit 2309, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in first order Serving cell and interfered cell, the second level, and export the 4th residual signal;
The second above-mentioned balanced unit 2310, also for the 4th residual signal is made to equilibrium treatment, obtains third level interfered cell equalizing signal;
Above-mentioned reconstructed unit 2311, also for third level interfered cell equalizing signal being carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in third level interfered cell chip;
The 4th above-mentioned computing unit 2312, also for third level interfered cell equalizing signal being deducted to the non-common signal channel reconstruct in third level interfered cell chip, and exports the 5th residual signal;
The second above-mentioned linear disturbance is eliminated unit 2313, also for the 5th residual signal is made to linear disturbance Processing for removing, obtains third level interfered cell echo signal;
The 5th above-mentioned computing unit 2314, also for third level interfered cell echo signal being added to the non-common signal channel reconstruct in third level interfered cell chip, and exports the 3rd cumulative signal;
The 3rd above-mentioned convolution unit 2315, also for described the 3rd cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in third level interfered cell;
The 3rd above-mentioned computing unit 2309, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in interfered cell, the second level and third level interfered cell, and export the 6th residual signal;
The second above-mentioned balanced unit 2310, also for the 6th residual signal is made to equilibrium treatment, fourth stage Serving cell equalizing signal;
Above-mentioned reconstructed unit 2311, also for fourth stage Serving cell equalizing signal being carried out to the non-common channel soft reconstruct in Serving cell, obtains the non-common signal channel reconstruct in fourth stage Serving cell chip;
The 4th above-mentioned computing unit 2312, also for fourth stage Serving cell equalizing signal being deducted to the non-common signal channel reconstruct in fourth stage Serving cell chip, and exports the 7th residual signal;
The second above-mentioned linear disturbance is eliminated unit 2313, also for the 7th residual signal is made to linear disturbance Processing for removing, obtains fourth stage Serving cell echo signal.
As a kind of optional execution mode, in the interference blanking unit shown in Figure 24:
The 5th above-mentioned computing unit 2314, also for fourth stage Serving cell echo signal being added to the non-common signal channel reconstruct in fourth stage Serving cell chip, and exports the 4th cumulative signal;
The 3rd above-mentioned convolution unit 2315, also for the 4th cumulative signal and Serving cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in fourth stage Serving cell;
The 3rd above-mentioned computing unit 2309, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in fourth stage Serving cell and third level interfered cell, and export the 8th residual signal;
The second above-mentioned balanced unit 2310, also for the 8th residual signal is made to equilibrium treatment, obtains level V interfered cell equalizing signal;
Above-mentioned reconstructed unit 2311, also for level V interfered cell equalizing signal being carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in level V interfered cell chip;
The 4th above-mentioned computing unit 2312, also for level V interfered cell equalizing signal being deducted to the non-common signal channel reconstruct in level V interfered cell chip, and exports the 9th residual signal;
The second above-mentioned linear disturbance is eliminated unit 2313, also for the 9th residual signal is made to linear disturbance Processing for removing, obtains level V interfered cell echo signal;
The 5th above-mentioned computing unit 2314, also for level V interfered cell echo signal being added to the non-common signal channel reconstruct in level V interfered cell chip, and exports the 5th cumulative signal;
The 3rd above-mentioned convolution unit 2315, also for the 5th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in level V interfered cell;
The 3rd above-mentioned computing unit 2309, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in fourth stage Serving cell and level V interfered cell, and export the tenth residual signal;
The second above-mentioned balanced unit 2310, also for the tenth residual signal is made to equilibrium treatment, obtains the 6th grade of interfered cell equalizing signal;
Above-mentioned reconstructed unit 2311, also for the 6th grade of interfered cell equalizing signal carried out to the non-common channel soft reconstruct in interfered cell, obtains the 6th grade of non-common signal channel reconstruct in interfered cell chip;
The 4th above-mentioned computing unit 2312, also for the 6th grade of interfered cell equalizing signal being deducted to the 6th grade of non-common signal channel reconstruct in interfered cell chip, and exports the 11 residual signal;
The second above-mentioned linear disturbance is eliminated unit 2313, also for the 11 residual signal is made to linear disturbance Processing for removing, obtains the 6th grade of interfered cell echo signal;
The 5th above-mentioned computing unit 2314, also for the 6th grade of interfered cell echo signal being added to the 6th grade of non-common signal channel reconstruct in interfered cell chip, and exports the 6th cumulative signal;
The 3rd above-mentioned convolution unit 2315, also for the 6th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the 6th grade of non-common signal channel reconstruction signal in interfered cell;
The 3rd above-mentioned computing unit 2309, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in level V interfered cell and the 6th grade of non-common signal channel reconstruction signal in interfered cell, and export the 12 residual signal;
The second above-mentioned balanced unit 2310, also for the 12 residual signal is made to equilibrium treatment, obtains the 7th grade of Serving cell equalizing signal;
Above-mentioned reconstructed unit 2311, also for the 7th grade of Serving cell equalizing signal carried out to the non-common channel soft reconstruct in Serving cell, obtains the 7th grade of non-common signal channel reconstruct in Serving cell chip;
The 4th above-mentioned computing unit 2312, also for the 7th grade of Serving cell equalizing signal being deducted to the 7th grade of non-common signal channel reconstruct in Serving cell chip, and exports the 13 residual signal;
The second above-mentioned linear disturbance is eliminated unit 2313, also for the 13 residual signal is made to linear disturbance Processing for removing, obtains the 7th grade of Serving cell echo signal.
As a kind of optional execution mode, in the interference blanking unit shown in Figure 24, can further include iterative interference cancellation part as shown in figure 25, wherein, the iterative interference cancellation part shown in Figure 25 can comprise:
The 6th computing unit 2316, for reception signal is deducted to first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of first order interfered cell common signal channel reconstruction signal and N-1 level interfered cell, and exporting the 14 residual signal, N is more than or equal to 3 natural number;
The 3rd balanced unit 2317, for the 14 residual signal is made to equilibrium treatment, obtains N level Serving cell equalizing signal; Wherein, described N is more than or equal to 3 natural number;
The 4th reconfiguration unit 2318, for N level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N level Serving cell chip;
Volume Four product unit 2319, for N level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N level Serving cell echo signal.
As a kind of optional execution mode, in the iterative interference cancellation part shown in Figure 25:
The 6th above-mentioned computing unit 2316, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N-1 level interfered cell and described N level Serving cell echo signal, and export the 15 residual signal;
The 3rd above-mentioned balanced unit 2317, also for the 15 residual signal is made to equilibrium treatment, obtains N level interfered cell equalizing signal;
The 4th above-mentioned reconfiguration unit 2318, also for N level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N level interfered cell chip;
Above-mentioned Volume Four product unit 2319, also for N level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N level interfered cell;
The 6th above-mentioned computing unit 2316, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N level interfered cell and N level Serving cell echo signal, and export the 16 residual signal;
The 3rd above-mentioned balanced unit 2317, also for the 16 residual signal is made to equilibrium treatment, obtains N+1 level interfered cell equalizing signal;
The 4th above-mentioned reconfiguration unit 2318, also for N+1 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+1 level interfered cell chip;
Above-mentioned Volume Four product unit 2319, also for N+1 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+1 level interfered cell;
The 6th above-mentioned computing unit 2316, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N level interfered cell, the non-common signal channel reconstruction signal of N level Serving cell echo signal and N+1 level interfered cell, and export the 17 residual signal;
The 3rd above-mentioned balanced unit 2317, also for the 17 residual signal is made to equilibrium treatment, obtains N+1 level Serving cell equalizing signal;
Correspondingly, in the iterative interference cancellation part shown in Figure 25, also comprise:
The 7th computing unit 2320, for N+1 level Serving cell equalizing signal is added to the non-common signal channel reconstruct in N level Serving cell chip, and exports the 7th cumulative signal;
The 4th above-mentioned reconfiguration unit 2318, also for utilizing the 7th cumulative signal to carry out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+1 level Serving cell chip;
Above-mentioned Volume Four product unit 2319, also for N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+1 level Serving cell echo signal.
As a kind of optional execution mode, in the iterative interference cancellation part shown in Figure 25:
The 6th above-mentioned computing unit 2316, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in N level interfered cell and the non-common signal channel reconstruction signal in N+1 level interfered cell, and export the 18 residual signal;
The 3rd above-mentioned balanced unit 2317, also for the 18 residual signal is made to equilibrium treatment, obtains N+2 level interfered cell equalizing signal;
The 7th above-mentioned computing unit 2320, also for N+2 level interfered cell equalizing signal is added to the non-common signal channel reconstruct in N level interfered cell chip, and exports the 8th cumulative signal;
The 4th above-mentioned reconfiguration unit 2318, also for utilizing the 8th cumulative signal to carry out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+2 level interfered cell chip;
Above-mentioned Volume Four product unit 2319, also for N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+2 level interfered cell;
The 6th above-mentioned computing unit 2316, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in N+1 level interfered cell and the non-common signal channel reconstruction signal in N+2 level interfered cell, and export the 19 residual signal;
The 3rd above-mentioned balanced unit 2317, also for the 19 residual signal is made to equilibrium treatment, obtains N+3 level interfered cell equalizing signal;
The 7th above-mentioned computing unit 2320, also for N+3 level interfered cell equalizing signal is added to the non-common signal channel reconstruct in N level interfered cell chip, and exports the 9th cumulative signal;
The 4th above-mentioned reconfiguration unit 2318, also for utilizing the 9th cumulative signal to carry out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+3 level interfered cell chip;
Above-mentioned Volume Four product unit 2319, also for N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+3 level interfered cell;
The 6th above-mentioned computing unit 2316, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of first order interfered cell common signal channel reconstruction signal and N+2 level interfered cell, the non-common signal channel reconstruction signal in N+3 level interfered cell, and export the 20 residual signal;
The 3rd above-mentioned balanced unit 2317, also for the 20 residual signal is made to equilibrium treatment, obtains N+4 level Serving cell equalizing signal;
The 7th above-mentioned computing unit 2320, also for N+4 level Serving cell equalizing signal is added to the non-common signal channel reconstruct in N level Serving cell chip, and exports the tenth cumulative signal;
The 4th above-mentioned reconfiguration unit 2318, also for utilizing the tenth cumulative signal to carry out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+4 level Serving cell chip;
Above-mentioned Volume Four product unit 2319, also for N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+4 level Serving cell echo signal.
See also Figure 26, Figure 26 is the structural representation of the another kind of interference blanking unit that obtains after being optimized by the interference blanking unit shown in Figure 23.Compare with the interference blanking unit shown in Figure 23, the interference blanking unit shown in Figure 26 can also comprise iterative interference cancellation part, in order to realize further iterative interference cancellation.Wherein, the iterative interference cancellation part that the interference blanking unit shown in Figure 26 comprises can comprise:
First volume product unit 2321, makes convolution for Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response that the first reconfiguration unit 2302 is obtained, obtains first order Serving cell common signal channel reconstruction signal;
The second computing unit 2322, adds for the first order Serving cell echo signal that the first linear interference cancellation unit 2305 is obtained the non-common signal channel reconstruct in the Serving cell chip that the second reconfiguration unit 2303 obtains, and exports the first cumulative signal;
Volume Two product unit 2323, for the first cumulative signal and the Serving cell time domain channel impulse response of the second computing unit 2322 outputs are made to convolution, obtains the non-common signal channel reconstruction signal in first order Serving cell;
The first above-mentioned balanced unit 2301, also for utilizing the balance parameters of interfered cell to make to received signal equilibrium treatment, obtains interfered cell equalizing signal;
Correspondingly, the iterative interference cancellation part that the interference blanking unit shown in Figure 26 comprises can comprise:
The 3rd convolution unit 2325, also makes convolution for interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response that reconstructed unit 2324 is obtained, obtains first order interfered cell common signal channel reconstruction signal;
The 4th reconfiguration unit 2326, carries out the non-common channel soft reconstruct in interfered cell for the interfered cell equalizing signal that the first balanced unit 2301 is obtained, and obtains the non-common signal channel reconstruct in interfered cell chip; Wherein, the non-common signal channel in interfered cell is the interfered cell channel of received power except the common signal channel of interfered cell over the second default thresholding;
The 3rd computing unit 2327, for interfered cell equalizing signal being deducted to the non-common signal channel reconstruct of interfered cell common signal channel reconstruct chip and interfered cell chip, and exports the second residual signal;
The second linear disturbance is eliminated unit 2328, for the second residual signal is made to linear disturbance Processing for removing, obtains first order interfered cell echo signal;
The 4th computing unit 2329, for first order interfered cell echo signal being added after the non-common signal channel reconstruct in interfered cell chip, and exports the second cumulative signal;
Volume Four product unit 2330, for the second cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in first order interfered cell;
As a kind of execution mode, the iterative interference cancellation part that the interference blanking unit shown in Figure 26 comprises can also comprise:
The 5th computing unit 2331, for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in first order interfered cell, and exports the 3rd residual signal;
The second balanced unit 2332, for to the 3rd residual signal equilibrium treatment, obtains Serving cell, second level equalizing signal;
The 5th reconfiguration unit 2333, for Serving cell, second level equalizing signal being carried out to the non-common channel soft reconstruct in Serving cell, obtains the non-common signal channel reconstruct in Serving cell, second level chip;
The 6th computing unit 2334, for Serving cell, second level equalizing signal being deducted to the non-common signal channel reconstruct in Serving cell, second level chip, and exports the 4th residual signal;
The 3rd linear disturbance is eliminated unit 2335, for the 4th residual signal is made to linear disturbance Processing for removing, obtains Serving cell, second level echo signal.
As a kind of execution mode, the iterative interference cancellation part that the interference blanking unit shown in Figure 26 comprises can also comprise:
The 7th computing unit 2336, for Serving cell, second level echo signal being added to the non-common signal channel reconstruct in Serving cell, second level chip, and exports the 3rd cumulative signal;
The 5th convolution unit 2337, for described the 3rd cumulative signal and Serving cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in Serving cell, the second level;
The 5th above-mentioned computing unit 2331, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in first order Serving cell and first order interfered cell, and export the 5th residual signal;
The second above-mentioned balanced unit 2332, also, for to the 5th residual signal equilibrium treatment, obtains interfered cell, second level equalizing signal;
The 5th above-mentioned reconfiguration unit 2333, also for interfered cell, second level equalizing signal being carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in interfered cell, second level chip;
The 6th above-mentioned computing unit 2334, also for interfered cell, second level equalizing signal being deducted to the non-common signal channel reconstruct in interfered cell, second level chip, and exports the 6th residual signal;
The 3rd above-mentioned linear disturbance is eliminated unit 2335, also for the 6th residual signal is made to linear disturbance Processing for removing, obtains interfered cell, second level echo signal;
The 7th above-mentioned computing unit 2336, also for interfered cell, second level echo signal being added to the non-common signal channel reconstruct in interfered cell, second level chip, and exports the 4th cumulative signal;
The 5th above-mentioned convolution unit 2337, also for the 4th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in interfered cell, the second level;
The 5th above-mentioned computing unit 2331, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N-1 level Serving cell and the non-common signal channel reconstruction signal in N-1 level interfered cell, and export the 7th residual signal, wherein, N is more than or equal to 3 natural number;
The second above-mentioned balanced unit 2332, also, for to the 7th residual signal equilibrium treatment, obtains N level interfered cell equalizing signal;
The 5th above-mentioned reconfiguration unit 2333, also for N level interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in N level interfered cell chip;
The 6th above-mentioned computing unit 2334, also for N level interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in N level interfered cell chip, and exports the 8th residual signal;
The 3rd above-mentioned linear disturbance is eliminated unit 2335, also for the 8th residual signal is made to linear disturbance Processing for removing, obtains N level interfered cell echo signal;
The 7th above-mentioned computing unit 2336, also for N level interfered cell echo signal is added to the non-common signal channel reconstruct in N level interfered cell chip, and exports the 5th cumulative signal;
The 5th above-mentioned convolution unit 2337, also for the 5th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N level interfered cell;
As a kind of optional execution mode, in the interference blanking unit shown in Figure 26, can further include iterative interference cancellation part as shown in figure 27, wherein, the iterative interference cancellation part shown in Figure 27 can comprise:
The 8th computing unit 2338, for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N level interfered cell, and exports the 9th residual signal;
The 3rd balanced unit 2339, for the 9th residual signal is made to equilibrium treatment, obtains N+1 level Serving cell equalizing signal;
The 6th reconfiguration unit 2340, for N+1 level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+1 level Serving cell chip;
The 6th convolution unit 2341, for N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+1 level Serving cell echo signal.
As a kind of optional execution mode, in the iterative interference cancellation part shown in Figure 27:
The 8th above-mentioned computing unit 2338, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of N+1 level Serving cell echo signal and N level interfered cell, and export the tenth residual signal;
The 3rd above-mentioned balanced unit 2339, also for the tenth residual signal is made to equilibrium treatment, obtains N+2 level interfered cell equalizing signal;
The 6th above-mentioned reconfiguration unit 2340, also for N+2 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+2 level interfered cell chip;
The 6th above-mentioned convolution unit 2341, also for N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+2 level interfered cell;
The 8th above-mentioned computing unit 2338, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of N+1 level Serving cell echo signal and N+2 level interfered cell, and export the 11 residual signal;
The 3rd above-mentioned balanced unit 2339, also for the 11 residual signal is made to equilibrium treatment, obtains N+3 level interfered cell equalizing signal;
The 6th above-mentioned reconfiguration unit 2340, also for N+3 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+3 level interfered cell chip;
The 6th above-mentioned convolution unit 2341, also for N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+3 level interfered cell;
The 8th above-mentioned computing unit 2338, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in N+2 level interfered cell and the non-common signal channel reconstruction signal in N+3 level interfered cell, and export the 12 residual signal;
The 3rd above-mentioned balanced unit 2339, also for the 12 residual signal is made to equilibrium treatment, obtains N+4 level Serving cell equalizing signal;
As a kind of optional execution mode, in the iterative interference cancellation part shown in Figure 27, can also comprise:
The 9th computing unit 2342, for N+4 level Serving cell equalizing signal is added to the non-common signal channel reconstruct in N+1 level Serving cell chip, and exports the 6th cumulative signal;
The 6th above-mentioned reconfiguration unit 2340, also for carrying out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct according to the 6th cumulative signal, obtains the non-common signal channel reconstruct in N+4 level Serving cell chip;
The 6th above-mentioned convolution unit 2341, also for N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+4 level Serving cell echo signal.
As a kind of optional execution mode, in the iterative interference cancellation part shown in Figure 27:
The 8th above-mentioned computing unit 2338, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in N+2 level interfered cell and the non-common signal channel reconstruction signal in N+3 level interfered cell, and export the 13 residual signal;
The 3rd above-mentioned balanced unit 2339, also for the 13 residual signal is made to equilibrium treatment, obtains N+5 level interfered cell equalizing signal;
The 9th above-mentioned computing unit 2342, also for N+5 level interfered cell equalizing signal is added to the non-common signal channel reconstruction signal in N+2 level interfered cell, and exports the 7th cumulative signal;
The 6th above-mentioned reconfiguration unit 2340, also for carrying out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct according to the 7th cumulative signal, obtains the non-common signal channel reconstruct in N+5 level interfered cell chip;
The 6th above-mentioned convolution unit 2341, also for N+5 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+5 level interfered cell;
The 8th above-mentioned computing unit 2338, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in N+5 level interfered cell and the non-common signal channel reconstruction signal in N+3 level interfered cell, and export the 14 residual signal;
The 3rd above-mentioned balanced unit 2339, also for the 14 residual signal is made to equilibrium treatment, obtains N+6 level interfered cell equalizing signal;
The 9th above-mentioned computing unit 2342, also for N+6 level interfered cell equalizing signal is added to the non-common signal channel reconstruction signal in N+3 level interfered cell, and exports the 8th cumulative signal;
The 6th above-mentioned reconfiguration unit 2340, also for carrying out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct according to the 8th cumulative signal, obtains the non-common signal channel reconstruct in N+6 level interfered cell chip;
The 6th above-mentioned convolution unit 2341, also for N+6 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+6 level interfered cell;
The 8th above-mentioned computing unit 2338, also for reception signal being deducted to first order Serving cell common signal channel reconstruction signal, first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N+5 level interfered cell and the non-common signal channel reconstruction signal in N+6 level interfered cell, and export the 15 residual signal;
The 3rd above-mentioned balanced unit 2339, also for the 15 residual signal is made to equilibrium treatment, obtains N+7 level Serving cell equalizing signal;
The 9th above-mentioned computing unit 2342, also for N+7 level Serving cell equalizing signal is added to the non-common signal channel reconstruct in N+1 level Serving cell chip, and exports the 9th cumulative signal;
The 6th above-mentioned reconfiguration unit 2340, also for carrying out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct according to the 9th cumulative signal, obtains the non-common signal channel reconstruct in N+7 level Serving cell chip;
The 6th above-mentioned convolution unit 2341, also for N+7 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+7 level Serving cell echo signal.
As a kind of optional execution mode, in the disclosed interference blanking unit of the embodiment of the present invention, during Serving cell common signal channel carrying unknown nucleotide sequence, the first reconfiguration unit 2301 can carry out descrambling and de-spreading to Serving cell equalizing signal, obtains Serving cell common signal channel symbol; And Serving cell common signal channel symbol is carried out that common signal channel reconstruct symbol is sentenced firmly or softly sentenced, to obtain Serving cell common signal channel reconstruct symbol; And Serving cell common signal channel reconstruct symbol is carried out to spectrum-spreading and scrambling, to obtain Serving cell common signal channel reconstruct chip.
As a kind of optional execution mode, in the disclosed interference blanking unit of the embodiment of the present invention, the second reconfiguration unit 2304 can carry out descrambling and de-spreading to Serving cell equalizing signal, to obtain Serving cell common signal channel symbol; And Serving cell common signal channel symbol is carried out to non-common signal channel reconstruct symbol is soft to be sentenced, to obtain the non-common signal channel reconstruct in Serving cell symbol; And the non-common signal channel reconstruct symbol that Serving cell power surpasses thresholding is carried out to spectrum-spreading and scrambling, to obtain Serving cell power, surpass the non-common signal channel reconstruct chip of thresholding.
Above the disclosed interference blanking unit of the embodiment of the present invention is described in detail, the embodiment of the present invention can the reception signal of receiver be carried out to interference elimination treatment in conjunction with reconstruct interference cancellation techniques and linear disturbance technology for eliminating simultaneously, with only adopt linear disturbance technology for eliminating to carry out interference elimination treatment to compare, the embodiment of the present invention more effectively signal of cancellation receiver is disturbed.
The disclosed interference blanking unit of the embodiment of the present invention can also carry out practical iterative interference cancellation.Because under interference environment, the channel number of Serving cell is less, and power is relatively high, and linear disturbance technology for eliminating is just in time applicable to the less situation of the number of channel, along with disturbing the iteration of eliminating to carry out, signal to noise ratio improves step by step, and reconstruct interference cancellation techniques is just in time applicable to the scene that signal to noise ratio is higher, so the embodiment of the present invention can, when maintaining lower complexity, obtain good interference eradicating efficacy.
Refer to Figure 28, Figure 28 is the structure chart of the disclosed another kind of interference blanking unit of the embodiment of the present invention, for carrying out the disclosed interference elimination method of the embodiment of the present invention.As shown in figure 28, this interference blanking unit 2800 comprises: at least one processor 1001, CPU for example, at least one network interface 1004 or other user interfaces 1003, memory 1005, at least one communication bus 1002.Communication bus 1002 is for realizing the connection communication between these assemblies.Wherein, user interface 1003 optionally can comprise USB interface and other standards interface, wireline interface.Network interface 1004 optionally can comprise Wi-Fi interface and other wave points.Memory 1005 may comprise high-speed RAM memory, also may also comprise non-unsettled memory (non-volatile memory), for example at least one magnetic disc store.Memory 1005 optionally can comprise at least one and be positioned at the storage device away from aforementioned processing device 1001.
In the interference blanking unit shown in Figure 28, network interface 1004 can be connected with the reception antenna of receiver, memory 1005 is for storage program, and processor 1001 is for calling the program of memory 1005 storages, and carries out disclosed interference elimination method before the embodiment of the present invention.Wherein, interference blanking unit shown in Figure 28 can the reception signal of receiver carry out to interference elimination treatment in conjunction with reconstruct interference cancellation techniques and linear disturbance technology for eliminating simultaneously, with only adopt linear disturbance technology for eliminating to carry out interference elimination treatment to compare, more effectively the signal of cancellation receiver disturbs.
Refer to Figure 29, Figure 29 is the structure chart of the disclosed a kind of receiver of the embodiment of the present invention.As shown in figure 29, this receiver 2900 comprises interference blanking unit 2901 and the reception antenna 2902 being connected with interference blanking unit 2901, and wherein, reception antenna 2902 is for receiving signal, and exports the reception signal receiving to interference blanking unit 2901.Wherein, the structure of interference blanking unit 2901, function can be identical with structure, the function of the disclosed interference blanking unit of embodiment above, and the embodiment of the present invention is not repeated.The disclosed receiver of the embodiment of the present invention can the reception signal of receiver carry out to interference elimination treatment in conjunction with reconstruct interference cancellation techniques and linear disturbance technology for eliminating simultaneously, with only adopt linear disturbance technology for eliminating to carry out interference elimination treatment to compare, more effectively the signal of cancellation receiver disturbs.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment is to come the hardware that instruction is relevant to complete by program, this program can be stored in a computer-readable recording medium, storage medium can comprise: flash disk, read-only memory (Read-Only Memory, ROM), random access device (Random Access Memory, RAM), disk or CD etc.
Above the disclosed interference elimination method of the embodiment of the present invention and device, receiver are described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.
Claims (25)
1. an interference elimination method, is characterized in that, comprising:
Utilize the balance parameters of Serving cell to make to received signal equilibrium treatment, obtain Serving cell equalizing signal;
Described Serving cell equalizing signal is carried out to the blind reconstruct of Serving cell common signal channel or soft reconstruct, obtain Serving cell common signal channel reconstruct chip;
Described Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell chip, wherein, the non-common signal channel in described Serving cell is the Serving cell channel of received power except the common signal channel of described Serving cell over the first default thresholding;
After described Serving cell equalizing signal is deducted to the non-common signal channel reconstruct of described Serving cell common signal channel reconstruct chip and described Serving cell chip, make linear disturbance Processing for removing, obtain first order Serving cell echo signal.
2. interference elimination method according to claim 1, is characterized in that, described method also comprises:
Described Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain first order Serving cell common signal channel reconstruction signal;
After described first order Serving cell echo signal is added to the non-common signal channel reconstruct in the above Serving cell chip, make convolution with Serving cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in first order Serving cell;
Utilize the balance parameters of interfered cell to make equilibrium treatment to described reception signal, obtain interfered cell equalizing signal;
Described interfered cell equalizing signal is carried out to the blind reconstruct of interfered cell common signal channel or soft reconstruct, obtain interfered cell common signal channel reconstruct chip, and described interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain first order interfered cell common signal channel reconstruction signal;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described first order Serving cell, make equilibrium treatment, obtain interfered cell, second level equalizing signal;
Interfered cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in interfered cell, second level chip, and make linear disturbance Processing for removing after interfered cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in interfered cell, described second level chip, obtain interfered cell, second level echo signal; Wherein, the non-common signal channel in described interfered cell is the interfered cell channel of received power except the common signal channel of described interfered cell over the second default thresholding;
After interfered cell, described second level echo signal is added to the non-common signal channel reconstruct in the above interfered cell, second level chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in interfered cell, the second level;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described first order Serving cell and interfered cell, the described second level, make equilibrium treatment, obtain third level interfered cell equalizing signal;
Described third level interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in third level interfered cell chip, and make linear disturbance Processing for removing after described third level interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described third level interfered cell chip, obtain third level interfered cell echo signal;
After described third level interfered cell echo signal is added to the non-common signal channel reconstruct in the above third level interfered cell chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in third level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in interfered cell, the described second level and described third level interfered cell, make equilibrium treatment, obtain fourth stage Serving cell equalizing signal;
Described fourth stage Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in fourth stage Serving cell chip, and make linear disturbance Processing for removing after described fourth stage Serving cell equalizing signal is deducted to the non-common signal channel reconstruct in described fourth stage Serving cell chip, obtain described fourth stage Serving cell echo signal.
3. interference elimination method according to claim 2, is characterized in that, described method also comprises:
After described fourth stage Serving cell echo signal is added to the non-common signal channel reconstruct in the above fourth stage Serving cell chip, make convolution with Serving cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in described fourth stage Serving cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described fourth stage Serving cell and described third level interfered cell, make equilibrium treatment, obtain level V interfered cell equalizing signal;
Described level V interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in level V interfered cell chip, and make linear disturbance Processing for removing after described level V interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described level V interfered cell chip, obtain level V interfered cell echo signal;
After described level V interfered cell echo signal is added to the non-common signal channel reconstruct in the above level V interfered cell chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in described level V interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described fourth stage Serving cell and described level V interfered cell, make equilibrium treatment, obtain the 6th grade of interfered cell equalizing signal;
Described the 6th grade of interfered cell equalizing signal carried out to the non-common channel soft reconstruct in interfered cell, obtain the 6th grade of non-common signal channel reconstruct in interfered cell chip, and make linear disturbance Processing for removing after described the 6th grade of interfered cell equalizing signal deducted to described the 6th grade of non-common signal channel reconstruct in interfered cell chip, obtain the 6th grade of interfered cell echo signal;
After described the 6th grade of interfered cell echo signal added to the above the 6th grade of non-common signal channel reconstruct in interfered cell chip, make convolution with interfered cell time domain channel impulse response, obtain the 6th grade of non-common signal channel reconstruction signal in interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described level V interfered cell and described the 6th grade of non-common signal channel reconstruction signal in interfered cell, make equilibrium treatment, obtain the 7th grade of Serving cell equalizing signal;
Described the 7th grade of Serving cell equalizing signal carried out to the non-common channel soft reconstruct in Serving cell, obtain the 7th grade of non-common signal channel reconstruct in Serving cell chip, and make linear disturbance Processing for removing after described the 7th grade of Serving cell equalizing signal deducted to described the 7th grade of non-common signal channel reconstruct in Serving cell chip, obtain described the 7th grade of Serving cell echo signal.
4. interference elimination method according to claim 2, is characterized in that, described method also comprises:
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of described first order interfered cell common signal channel reconstruction signal and N-1 level interfered cell, make equilibrium treatment, obtain N level Serving cell equalizing signal; Wherein, described N is more than or equal to 3 natural number;
Described N level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N level Serving cell chip, and described N level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N level Serving cell echo signal.
5. interference elimination method according to claim 4, is characterized in that, described method also comprises:
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N-1 level interfered cell and described N level Serving cell echo signal, make equilibrium treatment, obtain N level interfered cell equalizing signal;
Described N level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N level interfered cell chip, and described N level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell and described N level Serving cell echo signal, make equilibrium treatment, obtain N+1 level interfered cell equalizing signal;
Described N+1 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+1 level interfered cell chip, and described N+1 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+1 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell, described N level Serving cell echo signal and the non-common signal channel reconstruction signal in described N+1 level interfered cell, make equilibrium treatment, obtain N+1 level Serving cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N level Serving cell chip, described N+1 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+1 level Serving cell chip, and described N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+1 level Serving cell echo signal.
6. interference elimination method according to claim 5, is characterized in that, described method also comprises:
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N level interfered cell and the non-common signal channel reconstruction signal in described N+1 level interfered cell, make equilibrium treatment, obtain N+2 level interfered cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N level interfered cell chip, described N+2 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+2 level interfered cell chip, and described N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in described N+2 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+1 level interfered cell and the non-common signal channel reconstruction signal in described N+2 level interfered cell, make equilibrium treatment, obtain N+3 level interfered cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N level interfered cell chip, described N+3 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+3 level interfered cell chip, and described N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in described N+3 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of described first order interfered cell common signal channel reconstruction signal and N+2 level interfered cell, the non-common signal channel reconstruction signal in N+3 level interfered cell, make equilibrium treatment, obtain N+4 level Serving cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N level Serving cell chip, described N+4 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+4 level Serving cell chip, and described N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+4 level Serving cell echo signal.
7. interference elimination method according to claim 1, is characterized in that, described method also comprises:
Described Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain first order Serving cell common signal channel reconstruction signal;
After described first order Serving cell echo signal is added to the non-common signal channel reconstruct in the above Serving cell chip, make convolution with Serving cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in first order Serving cell;
Utilize the balance parameters of interfered cell to make equilibrium treatment to described reception signal, obtain interfered cell equalizing signal;
Described interfered cell equalizing signal is carried out to the blind reconstruct of interfered cell common signal channel or soft reconstruct, obtain interfered cell common signal channel reconstruct chip, and described interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain first order interfered cell common signal channel reconstruction signal;
Described interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in interfered cell chip, and make linear disturbance Processing for removing after described interfered cell equalizing signal is deducted to the non-common signal channel reconstruct of described interfered cell common signal channel reconstruct chip and described interfered cell chip, obtain first order interfered cell echo signal; Wherein, the non-common signal channel in described interfered cell is the interfered cell channel of received power except the common signal channel of described interfered cell over the second default thresholding;
After described first order interfered cell echo signal is added to the non-common signal channel reconstruct in the above interfered cell chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in first order interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described first order interfered cell, make equilibrium treatment, obtain Serving cell, second level equalizing signal;
Serving cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell, second level chip, and make linear disturbance Processing for removing after Serving cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in Serving cell, described second level chip, obtain Serving cell, second level echo signal.
8. interference elimination method according to claim 7, is characterized in that, described method also comprises:
After Serving cell, described second level echo signal is added to the non-common signal channel reconstruct in the above Serving cell, second level chip, make convolution with Serving cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in Serving cell, the second level;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described first order Serving cell and first order interfered cell, make equilibrium treatment, obtain interfered cell, second level equalizing signal;
Interfered cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in interfered cell, second level chip, and make linear disturbance Processing for removing after interfered cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in interfered cell, described second level chip, obtain interfered cell, second level echo signal;
After interfered cell, described second level echo signal is added to the non-common signal channel reconstruct in the above interfered cell, second level chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in interfered cell, the second level;
After being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N-1 level Serving cell and the non-common signal channel reconstruction signal in N-1 level interfered cell, described reception signal makes equilibrium treatment, obtain N level interfered cell equalizing signal, wherein, described N is more than or equal to 3 natural number;
Described N level interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtain the non-common signal channel reconstruct in N level interfered cell chip, and make linear disturbance Processing for removing after described N level interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described N level interfered cell chip, obtain N level interfered cell echo signal;
After described N level interfered cell echo signal is added to the above the non-common signal channel reconstruct in N level interfered cell chip, make convolution with interfered cell time domain channel impulse response, obtain the non-common signal channel reconstruction signal in N level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell, make equilibrium treatment, obtain N+1 level Serving cell equalizing signal;
Described N+1 level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+1 level Serving cell chip, and described N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+1 level Serving cell echo signal.
9. interference elimination method according to claim 8, is characterized in that, described method also comprises:
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal and the non-common signal channel reconstruction signal in described N level interfered cell, make equilibrium treatment, obtain N+2 level interfered cell equalizing signal;
Described N+2 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+2 level interfered cell chip, and described N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+2 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level described Serving cell echo signal and the non-common signal channel reconstruction signal in described N+2 level interfered cell, make equilibrium treatment, obtain N+3 level interfered cell equalizing signal;
Described N+3 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+3 level interfered cell chip, and described N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+3 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+2 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, make equilibrium treatment, obtain N+4 level Serving cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N+1 level Serving cell chip, described N+4 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+4 level Serving cell chip, and described N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+4 level Serving cell echo signal.
10. interference elimination method according to claim 9, is characterized in that, described method also comprises:
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+2 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, make equilibrium treatment, obtain N+5 level interfered cell equalizing signal;
After being added to the above non-common signal channel reconstruction signal in N+2 level interfered cell, described N+5 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+5 level interfered cell chip, and described N+5 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in described N+5 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+5 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, make equilibrium treatment, obtain N+6 level interfered cell equalizing signal;
After being added to the above non-common signal channel reconstruction signal in N+3 level interfered cell, described N+6 level interfered cell equalizing signal carries out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+6 level interfered cell chip, and described N+6 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtain the non-common signal channel reconstruction signal in N+6 level interfered cell;
After described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N+5 level interfered cell and the non-common signal channel reconstruction signal in described N+6 level interfered cell, make equilibrium treatment, obtain N+7 level Serving cell equalizing signal;
After being added to the above the non-common signal channel reconstruct in N+1 level Serving cell chip, described N+7 level Serving cell equalizing signal carries out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtain the non-common signal channel reconstruct in N+7 level Serving cell chip, and described N+7 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtain N+7 level Serving cell echo signal.
11. according to the interference elimination method described in claim 1～10 any one, it is characterized in that,
Described described Serving cell equalizing signal is carried out to the blind reconstruct of Serving cell common signal channel or soft reconstruct, obtains Serving cell common signal channel reconstruct chip, comprising:
Described Serving cell equalizing signal is carried out to descrambling and de-spreading, obtain Serving cell common signal channel symbol;
Described Serving cell common signal channel symbol is carried out that common signal channel reconstruct symbol is sentenced firmly or softly sentenced, obtain Serving cell common signal channel reconstruct symbol;
Described Serving cell common signal channel reconstruct symbol carries out spectrum-spreading and scrambling, obtains described Serving cell common signal channel reconstruct chip.
12. according to the interference elimination method described in claim 1～10 any one, it is characterized in that, described described Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtains the non-common signal channel reconstruct in Serving cell chip, comprising:
Described Serving cell equalizing signal is carried out to descrambling and de-spreading, obtain Serving cell common signal channel symbol;
Described Serving cell common signal channel symbol is carried out to non-common signal channel reconstruct symbol is soft to be sentenced, obtain the non-common signal channel reconstruct in Serving cell symbol;
Described Serving cell non-common signal channel reconstruct symbol is carried out to spectrum-spreading and scrambling, obtain the non-common signal channel reconstruct in described Serving cell chip.
13. 1 kinds of interference blanking units, is characterized in that, comprising:
The first balanced unit, for utilizing the balance parameters of Serving cell to make to received signal equilibrium treatment, obtains Serving cell equalizing signal;
The first reconfiguration unit, carries out the blind reconstruct of Serving cell common signal channel or soft reconstruct for the described Serving cell equalizing signal that described the first balanced unit is obtained, and obtains Serving cell common signal channel reconstruct chip;
The second reconfiguration unit, for the described Serving cell equalizing signal that described the first balanced unit is obtained, carry out the non-common channel soft reconstruct in Serving cell, obtain the non-common signal channel reconstruct in Serving cell chip, wherein, the non-common signal channel in described Serving cell is the Serving cell channel of received power except the common signal channel of described Serving cell over the first default thresholding;
The first computing unit, for the described Serving cell equalizing signal that described the first balanced unit is obtained, deduct the non-common signal channel reconstruct in the described Serving cell chip that described Serving cell common signal channel reconstruct chip that described the first reconfiguration unit obtains and described the second reconfiguration unit obtain, and export the first residual signal;
The first linear interference cancellation unit, for described first residual signal of described the first computing unit output is made to linear disturbance Processing for removing, obtains first order Serving cell echo signal.
14. interference blanking units according to claim 13, is characterized in that, described device also comprises:
First volume product unit, makes convolution for described Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response that described the first reconfiguration unit is obtained, obtains first order Serving cell common signal channel reconstruction signal;
The second computing unit, adds for the described first order Serving cell echo signal that described the first linear interference cancellation unit is obtained the non-common signal channel reconstruct in the described Serving cell chip that the above second reconfiguration unit obtains, and exports the first cumulative signal;
Volume Two product unit, for described the first cumulative signal and the Serving cell time domain channel impulse response of described the second computing unit output are made to convolution, obtains the non-common signal channel reconstruction signal in first order Serving cell;
Described the first balanced unit, also for utilizing the balance parameters of interfered cell to make equilibrium treatment to described reception signal, obtains interfered cell equalizing signal;
Described the first reconfiguration unit, also carries out the blind reconstruct of interfered cell common signal channel or soft reconstruct for the described interfered cell equalizing signal that described the first balanced unit is obtained, and obtains interfered cell common signal channel reconstruct chip;
Described first volume product unit, also makes convolution for described interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response that described the first reconfiguration unit is obtained, obtains first order interfered cell common signal channel reconstruction signal;
Described device also comprises:
The 3rd computing unit, for described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described first order Serving cell, and export the second residual signal;
The second balanced unit, for described the second residual signal is made to equilibrium treatment, obtains interfered cell, second level equalizing signal;
Reconstructed unit, for interfered cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in interfered cell, second level chip;
The 4th computing unit, for interfered cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in interfered cell, described second level chip, and exports the 3rd residual signal;
The second linear disturbance is eliminated unit, for described the 3rd residual signal is made to linear disturbance Processing for removing, obtains interfered cell, second level echo signal; Wherein, the non-common signal channel in described interfered cell is the interfered cell channel of received power except the common signal channel of described interfered cell over the second default thresholding;
The 5th computing unit, for interfered cell, described second level echo signal is added to the non-common signal channel reconstruct in the above interfered cell, second level chip, and exports the second cumulative signal;
The 3rd convolution unit, for described the second cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in interfered cell, the second level;
Described the 3rd computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described first order Serving cell and interfered cell, the described second level, and export the 4th residual signal;
Described the second balanced unit, also for described the 4th residual signal is made to equilibrium treatment, obtains third level interfered cell equalizing signal;
Described reconstructed unit, also for described third level interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in third level interfered cell chip;
Described the 4th computing unit, also for described third level interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described third level interfered cell chip, and exports the 5th residual signal;
Described the second linear disturbance is eliminated unit, also for described the 5th residual signal is made to linear disturbance Processing for removing, obtains third level interfered cell echo signal;
Described the 5th computing unit, also for described third level interfered cell echo signal is added to the non-common signal channel reconstruct in the above third level interfered cell chip, and exports the 3rd cumulative signal;
Described the 3rd convolution unit, for described the 3rd cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in third level interfered cell;
Described the 3rd computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in interfered cell, the described second level and described third level interfered cell, and export the 6th residual signal;
Described the second balanced unit, also for making equilibrium treatment to described the 6th residual signal, fourth stage Serving cell equalizing signal;
Described reconstructed unit, also for described fourth stage Serving cell equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtains the non-common signal channel reconstruct in fourth stage Serving cell chip;
Described the 4th computing unit, also for described fourth stage Serving cell equalizing signal is deducted to the non-common signal channel reconstruct in described fourth stage Serving cell chip, and exports the 7th residual signal;
Described the second linear disturbance is eliminated unit, also, for described the 7th residual signal is made to linear disturbance Processing for removing, obtains described fourth stage Serving cell echo signal.
15. interference blanking units according to claim 14, is characterized in that,
Described the 5th computing unit, also for described fourth stage Serving cell echo signal is added to the non-common signal channel reconstruct in the above fourth stage Serving cell chip, and exports the 4th cumulative signal;
Described the 3rd convolution unit, also, for described the 4th cumulative signal and Serving cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in described fourth stage Serving cell;
Described the 3rd computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described fourth stage Serving cell and described third level interfered cell, and export the 8th residual signal;
Described the second balanced unit, also for described the 8th residual signal is made to equilibrium treatment, obtains level V interfered cell equalizing signal;
Described reconstructed unit, also for described level V interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in level V interfered cell chip;
Described the 4th computing unit, also for described level V interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described level V interfered cell chip, and exports the 9th residual signal;
Described the second linear disturbance is eliminated unit, also for described the 9th residual signal is made to linear disturbance Processing for removing, obtains level V interfered cell echo signal;
Described the 5th computing unit, also for described level V interfered cell echo signal is added to the non-common signal channel reconstruct in the above level V interfered cell chip, and exports the 5th cumulative signal;
Described the 3rd convolution unit, also, for described the 5th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in described level V interfered cell;
Described the 3rd computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described fourth stage Serving cell and described level V interfered cell, and export the tenth residual signal;
Described the second balanced unit, also for described the tenth residual signal is made to equilibrium treatment, obtains the 6th grade of interfered cell equalizing signal;
Described reconstructed unit, also, for described the 6th grade of interfered cell equalizing signal carried out to the non-common channel soft reconstruct in interfered cell, obtains the 6th grade of non-common signal channel reconstruct in interfered cell chip;
Described the 4th computing unit, also for described the 6th grade of interfered cell equalizing signal being deducted to described the 6th grade of non-common signal channel reconstruct in interfered cell chip, and exports the 11 residual signal;
Described the second linear disturbance is eliminated unit, also for described the 11 residual signal is made to linear disturbance Processing for removing, obtains the 6th grade of interfered cell echo signal;
Described the 5th computing unit, also for described the 6th grade of interfered cell echo signal being added to the above the 6th grade of non-common signal channel reconstruct in interfered cell chip, and exports the 6th cumulative signal;
Described the 3rd convolution unit, also for described the 6th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the 6th grade of non-common signal channel reconstruction signal in interfered cell;
Described the 3rd computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described level V interfered cell and described the 6th grade of non-common signal channel reconstruction signal in interfered cell, and export the 12 residual signal;
Described the second balanced unit, also for described the 12 residual signal is made to equilibrium treatment, obtains the 7th grade of Serving cell equalizing signal;
Described reconstructed unit, also, for described the 7th grade of Serving cell equalizing signal carried out to the non-common channel soft reconstruct in Serving cell, obtains the 7th grade of non-common signal channel reconstruct in Serving cell chip;
Described the 4th computing unit, also for described the 7th grade of Serving cell equalizing signal being deducted to described the 7th grade of non-common signal channel reconstruct in Serving cell chip, and exports the 13 residual signal;
Described the second linear disturbance is eliminated unit, also for described the 13 residual signal is made to linear disturbance Processing for removing, obtains described the 7th grade of Serving cell echo signal.
16. interference blanking units according to claim 14, is characterized in that, described device also comprises:
The 6th computing unit, for described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of described first order interfered cell common signal channel reconstruction signal and N-1 level interfered cell, and exporting the 14 residual signal, described N is more than or equal to 3 natural number;
The 3rd balanced unit, for described the 14 residual signal is made to equilibrium treatment, obtains N level Serving cell equalizing signal; Wherein, described N is more than or equal to 3 natural number;
The 4th reconfiguration unit, for described N level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N level Serving cell chip;
Volume Four product unit, for described N level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N level Serving cell echo signal.
17. interference blanking units according to claim 16, is characterized in that,
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N-1 level interfered cell and described N level Serving cell echo signal, and export the 15 residual signal;
Described the 3rd balanced unit, also for described the 15 residual signal is made to equilibrium treatment, obtains N level interfered cell equalizing signal;
Described the 4th reconfiguration unit, also for described N level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N level interfered cell chip;
Described Volume Four product unit, also for described N level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N level interfered cell;
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell and described N level Serving cell echo signal, and export the 16 residual signal;
Described the 3rd balanced unit, also for described the 16 residual signal is made to equilibrium treatment, obtains N+1 level interfered cell equalizing signal;
Described the 4th reconfiguration unit, also for described N+1 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+1 level interfered cell chip;
Described Volume Four product unit, also for described N+1 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+1 level interfered cell;
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell, described N level Serving cell echo signal and the non-common signal channel reconstruction signal in described N+1 level interfered cell, and export the 17 residual signal;
Described the 3rd balanced unit, also for described the 17 residual signal is made to equilibrium treatment, obtains N+1 level Serving cell equalizing signal;
Described device also comprises:
The 7th computing unit, for described N+1 level Serving cell equalizing signal is added to the above the non-common signal channel reconstruct in N level Serving cell chip, and exports the 7th cumulative signal;
Described the 4th reconfiguration unit, also for utilizing described the 7th cumulative signal to carry out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+1 level Serving cell chip;
Described Volume Four product unit, also for described N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+1 level Serving cell echo signal.
18. interference blanking units according to claim 17, is characterized in that,
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N level interfered cell and the non-common signal channel reconstruction signal in described N+1 level interfered cell, and export the 18 residual signal;
Described the 3rd balanced unit, also for described the 18 residual signal is made to equilibrium treatment, obtains N+2 level interfered cell equalizing signal;
Described the 7th computing unit, also for described N+2 level interfered cell equalizing signal is added to the above the non-common signal channel reconstruct in N level interfered cell chip, and exports the 8th cumulative signal;
Described the 4th reconfiguration unit, also for utilizing described the 8th cumulative signal to carry out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+2 level interfered cell chip;
Described Volume Four product unit, also for described N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in described N+2 level interfered cell;
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+1 level interfered cell and the non-common signal channel reconstruction signal in described N+2 level interfered cell, and export the 19 residual signal;
Described the 3rd balanced unit, also for described the 19 residual signal is made to equilibrium treatment, obtains N+3 level interfered cell equalizing signal;
Described the 7th computing unit, also for described N+3 level interfered cell equalizing signal is added to the above the non-common signal channel reconstruct in N level interfered cell chip, and exports the 9th cumulative signal;
Described the 4th reconfiguration unit, also for utilizing described the 9th cumulative signal to carry out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+3 level interfered cell chip;
Described Volume Four product unit, also for described N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in described N+3 level interfered cell;
Described the 6th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of described first order interfered cell common signal channel reconstruction signal and N+2 level interfered cell, the non-common signal channel reconstruction signal in N+3 level interfered cell, and export the 20 residual signal;
Described the 3rd balanced unit, also for described the 20 residual signal is made to equilibrium treatment, obtains N+4 level Serving cell equalizing signal;
Described the 7th computing unit, also for described N+4 level Serving cell equalizing signal is added to the above the non-common signal channel reconstruct in N level Serving cell chip, and exports the tenth cumulative signal;
Described the 4th reconfiguration unit, also for utilizing described the tenth cumulative signal to carry out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+4 level Serving cell chip;
Described Volume Four product unit, also for described N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+4 level Serving cell echo signal.
19. interference blanking units according to claim 13, is characterized in that, described device also comprises:
First volume product unit, makes convolution for described Serving cell common signal channel reconstruct chip and Serving cell time domain channel impulse response that described the first reconfiguration unit is obtained, obtains first order Serving cell common signal channel reconstruction signal;
The second computing unit, adds for the described first order Serving cell echo signal that described the first linear interference cancellation unit is obtained the non-common signal channel reconstruct in the described Serving cell chip that the above second reconfiguration unit obtains, and exports the first cumulative signal;
Volume Two product unit, for described the first cumulative signal and the Serving cell time domain channel impulse response of described the second computing unit output are made to convolution, obtains the non-common signal channel reconstruction signal in first order Serving cell;
Described the first balanced unit, also for utilizing the balance parameters of interfered cell to make equilibrium treatment to described reception signal, obtains interfered cell equalizing signal;
Described device also comprises:
Reconstructed unit, carries out the blind reconstruct of interfered cell common signal channel or soft reconstruct for the described interfered cell equalizing signal that described the first balanced unit is obtained, and obtains interfered cell common signal channel reconstruct chip;
The 3rd convolution unit, also makes convolution for described interfered cell common signal channel reconstruct chip and interfered cell time domain channel impulse response that described reconstructed unit is obtained, obtains first order interfered cell common signal channel reconstruction signal;
The 4th reconfiguration unit, carries out the non-common channel soft reconstruct in interfered cell for the described interfered cell equalizing signal that described the first balanced unit is obtained, and obtains the non-common signal channel reconstruct in interfered cell chip; Wherein, the non-common signal channel in described interfered cell is the interfered cell channel of received power except the common signal channel of described interfered cell over the second default thresholding;
The 3rd computing unit, for described interfered cell equalizing signal being deducted to the non-common signal channel reconstruct of described interfered cell common signal channel reconstruct chip and described interfered cell chip, and exports the second residual signal;
The second linear disturbance is eliminated unit, for described the second residual signal is made to linear disturbance Processing for removing, obtains first order interfered cell echo signal;
The 4th computing unit, for described first order interfered cell echo signal is added after the non-common signal channel reconstruct in the above interfered cell chip, and exports the second cumulative signal;
Volume Four product unit, for described the second cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in first order interfered cell;
Described device also comprises:
The 5th computing unit, for described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described first order interfered cell, and export the 3rd residual signal;
The second balanced unit, for to described the 3rd residual signal equilibrium treatment, obtains Serving cell, second level equalizing signal;
The 5th reconfiguration unit, for Serving cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in Serving cell, obtains the non-common signal channel reconstruct in Serving cell, second level chip;
The 6th computing unit, for Serving cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in Serving cell, described second level chip, and exports the 4th residual signal;
The 3rd linear disturbance is eliminated unit, for described the 4th residual signal is made to linear disturbance Processing for removing, obtains Serving cell, second level echo signal.
20. interference blanking units according to claim 19, is characterized in that, described device also comprises:
The 7th computing unit, for Serving cell, described second level echo signal is added to the non-common signal channel reconstruct in the above Serving cell, second level chip, and exports the 3rd cumulative signal;
The 5th convolution unit, for described the 3rd cumulative signal and Serving cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in Serving cell, the second level;
Described the 5th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal of the non-common signal channel reconstruction signal in described first order Serving cell and first order interfered cell, and export the 5th residual signal;
Described the second balanced unit, also, for to described the 5th residual signal equilibrium treatment, obtains interfered cell, second level equalizing signal;
Described the 5th reconfiguration unit, also for interfered cell, described second level equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in interfered cell, second level chip;
Described the 6th computing unit, also for interfered cell, described second level equalizing signal is deducted to the non-common signal channel reconstruct in interfered cell, described second level chip, and exports the 6th residual signal;
Described the 3rd linear disturbance is eliminated unit, also for described the 6th residual signal is made to linear disturbance Processing for removing, obtains interfered cell, second level echo signal;
Described the 7th computing unit, also for interfered cell, described second level echo signal is added to the non-common signal channel reconstruct in the above interfered cell, second level chip, and exports the 4th cumulative signal;
Described the 5th convolution unit, also for described the 4th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in interfered cell, the second level;
Described the 5th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in N-1 level Serving cell and the non-common signal channel reconstruction signal in N-1 level interfered cell, and export the 7th residual signal, wherein, described N is more than or equal to 3 natural number;
Described the second balanced unit, also, for to described the 7th residual signal equilibrium treatment, obtains N level interfered cell equalizing signal;
Described the 5th reconfiguration unit, also for described N level interfered cell equalizing signal is carried out to the non-common channel soft reconstruct in interfered cell, obtains the non-common signal channel reconstruct in N level interfered cell chip;
Described the 6th computing unit, also for described N level interfered cell equalizing signal is deducted to the non-common signal channel reconstruct in described N level interfered cell chip, and exports the 8th residual signal;
Described the 3rd linear disturbance is eliminated unit, also for described the 8th residual signal is made to linear disturbance Processing for removing, obtains N level interfered cell echo signal;
Described the 7th computing unit, also for described N level interfered cell echo signal is added to the above the non-common signal channel reconstruct in N level interfered cell chip, and exports the 5th cumulative signal;
Described the 5th convolution unit, also for described the 5th cumulative signal and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N level interfered cell;
Described device also comprises:
The 8th computing unit, for described reception signal is deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N level interfered cell, and export the 9th residual signal;
The 3rd balanced unit, for described the 9th residual signal is made to equilibrium treatment, obtains N+1 level Serving cell equalizing signal;
The 6th reconfiguration unit, for described N+1 level Serving cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+1 level Serving cell chip;
The 6th convolution unit, for described N+1 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+1 level Serving cell echo signal.
21. interference blanking units according to claim 20, is characterized in that,
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal and the non-common signal channel reconstruction signal in described N level interfered cell, and export the tenth residual signal;
Described the 3rd balanced unit, also for described the tenth residual signal is made to equilibrium treatment, obtains N+2 level interfered cell equalizing signal;
Described the 6th reconfiguration unit, also for described N+2 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+2 level interfered cell chip;
Described the 6th convolution unit, also for described N+2 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+2 level interfered cell;
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level described Serving cell echo signal and the non-common signal channel reconstruction signal in described N+2 level interfered cell, and export the 11 residual signal;
Described the 3rd balanced unit, also for described the 11 residual signal is made to equilibrium treatment, obtains N+3 level interfered cell equalizing signal;
Described the 6th reconfiguration unit, also for described N+3 level interfered cell equalizing signal is carried out to the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct, obtains the non-common signal channel reconstruct in N+3 level interfered cell chip;
Described the 6th convolution unit, also for described N+3 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+3 level interfered cell;
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+1 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+2 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, and export the 12 residual signal;
Described the 3rd balanced unit, also for described the 12 residual signal is made to equilibrium treatment, obtains N+4 level Serving cell equalizing signal;
Described device also comprises:
The 9th computing unit, for described N+4 level Serving cell equalizing signal is added to the above the non-common signal channel reconstruct in N+1 level Serving cell chip, and exports the 6th cumulative signal;
Described the 6th reconfiguration unit, also for carrying out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct according to described the 6th cumulative signal, obtains the non-common signal channel reconstruct in N+4 level Serving cell chip;
Described the 6th convolution unit, also for described N+4 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+4 level Serving cell echo signal.
22. interference blanking units according to claim 21, is characterized in that,
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+2 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, and export the 13 residual signal;
Described the 3rd balanced unit, also for described the 13 residual signal is made to equilibrium treatment, obtains N+5 level interfered cell equalizing signal;
Described the 9th computing unit, also for described N+5 level interfered cell equalizing signal is added to the above non-common signal channel reconstruction signal in N+2 level interfered cell, and exports the 7th cumulative signal;
Described the 6th reconfiguration unit, also for carrying out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct according to described the 7th cumulative signal, obtains the non-common signal channel reconstruct in N+5 level interfered cell chip;
Described the 6th convolution unit, also for described N+5 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in described N+5 level interfered cell;
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, described N+4 level Serving cell echo signal, the non-common signal channel reconstruction signal in described N+5 level interfered cell and the non-common signal channel reconstruction signal in described N+3 level interfered cell, and export the 14 residual signal;
Described the 3rd balanced unit, also for described the 14 residual signal is made to equilibrium treatment, obtains N+6 level interfered cell equalizing signal;
Described the 9th computing unit, also for described N+6 level interfered cell equalizing signal is added to the above non-common signal channel reconstruction signal in N+3 level interfered cell, and exports the 8th cumulative signal;
Described the 6th reconfiguration unit, also for carrying out the blind reconstruct of the non-common signal channel in interfered cell or soft reconstruct according to described the 8th cumulative signal, obtains the non-common signal channel reconstruct in N+6 level interfered cell chip;
Described the 6th convolution unit, also for described N+6 level interfered cell non-common signal channel reconstruct chip and interfered cell time domain channel impulse response are made to convolution, obtains the non-common signal channel reconstruction signal in N+6 level interfered cell;
Described the 8th computing unit, also for described reception signal being deducted to described first order Serving cell common signal channel reconstruction signal, described first order interfered cell common signal channel reconstruction signal, the non-common signal channel reconstruction signal in described N+5 level interfered cell and the non-common signal channel reconstruction signal in described N+6 level interfered cell, and export the 15 residual signal;
Described the 3rd balanced unit, also for described the 15 residual signal is made to equilibrium treatment, obtains N+7 level Serving cell equalizing signal;
Described the 9th computing unit, also for described N+7 level Serving cell equalizing signal is added to the above the non-common signal channel reconstruct in N+1 level Serving cell chip, and exports the 9th cumulative signal;
Described the 6th reconfiguration unit, also for carrying out the blind reconstruct of the non-common signal channel in Serving cell or soft reconstruct according to described the 9th cumulative signal, obtains the non-common signal channel reconstruct in N+7 level Serving cell chip;
Described the 6th convolution unit, also for described N+7 level Serving cell non-common signal channel reconstruct chip and Serving cell time domain channel impulse response are made to convolution, obtains N+7 level Serving cell echo signal.
23. according to the interference blanking unit described in claim 13～22 any one, it is characterized in that, the described Serving cell equalizing signal that described the first reconfiguration unit obtains described the first balanced unit carries out the blind reconstruct of Serving cell common signal channel or soft reconstruct, and the mode that obtains Serving cell common signal channel reconstruct chip is specially:
The described Serving cell equalizing signal that the first reconfiguration unit obtains described the first balanced unit carries out descrambling and de-spreading, obtains described Serving cell common signal channel symbol; And described Serving cell common signal channel symbol is carried out that common signal channel reconstruct symbol is sentenced firmly or softly sentenced, obtain Serving cell common signal channel reconstruct symbol; And described Serving cell common signal channel reconstruct symbol is carried out to spectrum-spreading and scrambling, to obtain Serving cell common signal channel reconstruct chip.
24. according to the interference blanking unit described in claim 13～22 any one, it is characterized in that, the described Serving cell equalizing signal that described the second reconfiguration unit obtains described the first balanced unit carries out the non-common channel soft reconstruct in Serving cell, and the mode that obtains the non-common signal channel reconstruct in Serving cell chip is specially:
The described Serving cell equalizing signal that the second reconfiguration unit obtains described the first balanced unit carries out descrambling and de-spreading, obtains Serving cell common signal channel symbol; And described Serving cell common signal channel symbol is carried out to non-common signal channel reconstruct symbol is soft to be sentenced, obtain the non-common signal channel reconstruct in Serving cell symbol; And described Serving cell non-common signal channel reconstruct symbol is carried out to spectrum-spreading and scrambling, obtain the non-common signal channel reconstruct chip that Serving cell power surpasses thresholding.
25. 1 kinds of receivers, it is characterized in that, described receiver comprises the interference blanking unit described in claim 13～24 any one and the reception antenna being connected with described interference blanking unit, wherein, described reception antenna is used for receiving signal, and described reception signal is inputted to described interference blanking unit.
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