CN103905346A - Interference signal processing method and device - Google Patents

Abstract

The embodiment of the invention discloses an interference signal processing method and device. According to the method, a service cell of an edge user is used to measure the information of an interference cell; the information is sent to the interference cell; and the interference cell coordinates pilot frequency configuration parameters according to the information, which can reduce interference signals produced by the interference cell on the edge user.

Description

A kind of method and apparatus of interference signal processing

Technical field

The invention belongs to the communications field, relate in particular to a kind of method and apparatus of interference signal processing.

Background technology

3G Long Term Evolution (Long Term Evolution, and the follow-up evolution of LTE (Long Term Evolution-Advanced LTE), LTE-A) main flow networking scene is all identical networking, for Cell Edge User, the presence of intercell interference being subject to is very serious, in order to address this problem, LTE-A is also that Rel-10 and Rel-11 have proposed coordination multi-point transmitting (Coordinated Multi-Point, CoMP) concept of (coordinating between LTE-A small area to reach and disturbing inhibition or disturb the object of utilizing), object is exactly in order to solve problem of co-channel interference, promote cell capacity.

According to whether colocation site of Serving cell and cooperation cell, COMP is divided between station CoMP Intra-eNB CoMP in CoMP Inter-eNB CoMP and station.According to subscriber equipment (User equipment, UE) whether data need to carry out in multiple cooperation cell alternately, COMP Further Division is coordinated scheduling/coordinates beam excipient (Coordinating Schedule/Coordinating Beamforming, CS/CB), (Dynamic Cell Selection is selected in dynamic cell, and multi-plot joint transmitting (Joint Transmission DCS), JT), wherein, JT can be divided into SU(Single User according to dispatching number of users on identical running time-frequency resource)-JT and MU(Multi-User)-JT.

For TDD BF transmission technology, CS/CB is mainly divided into coordinates beam and switches (Coordinating Beam Switch, CBS) and coordinates beam excipient (Coordinating Beamforming, CBF).CBS adopts the wave beam of predetermined rule to switch in time domain or frequency domain, reaching all users in every community carries out overall wave beam and dodges, reduce and disturb, and then avoid flashlight effect (because the adjacent cell wave beam moment is all changing, cause channel quality instruction (the Channel Quality Indicator of feedback, CQI cannot reflect the channel quality in next moment), improving performance.Because CBS needs, the whole network is unified to be coordinated, and constraint is larger in realization.

CBF is by the user's weights on the identical scheduling resource in cooperation community are adjusted, and then reduction presence of intercell interference.CBF feature: 1) business datum need to not carried out alternately in cooperation community, requires lower to backhaul capacity; 2), owing to relating to channel information measurement, cooperation community needs mutual a small amount of user's schedule information.The to sum up main application scenarios of CBF: any scene that need to improve marginal user performance between interior and station of standing, is used for macrocell scene.

The feature of JT: all cooperation cell all need data message and the schedule information of interactive user, and backhaul is had relatively high expectations.In promoting edges cover, can improve community average spectral efficiency (ase).For JT, need to carry out phase alignment between the RRU of cooperation cell, be difficult point at present.This is also the advantage of our scheme.

To sum up, the main application scenarios of JT: have high power capacity backhaul resources, any scene that need to improve marginal user performance and elevator system spectrum efficiency.

Prior art is CoMP, be mainly CBF and JT scheme, the main algorithm of CBF has letter leakage to make an uproar than (Signal-to-Leakage-Noise Ratio, SLNR) and ZF (Zero Forcing, ZF), SLNR needs base station side to know the noise of terminal, ZF need to carry out interference avoidance making a start, thereby cause useful signal intensity to incur loss, two schemes all needs interactive channel state information and schedule information simultaneously, exists compared with low capacity requirement for backhaul.

JT scheme is the wireless remote control unit of multiple cooperation cell (Radio Remote Unit, RRU) virtually turn to a RRU, for cooperation UE, antenna number is double, thereby adopt BF algorithm to obtain array gain, if consider multi-user beam excipient (Multi-User Beamforming, MUBF), can also obtain spatial reuse gain, reach and utilize the object of disturbing.

For CBF, SLNR needs terminal feedback noise, and feedback overhead is larger, and ZF need to estimate the channel condition information of collaboration user, useful signal intensity is had to impact simultaneously, and performance is difficult to ensure.JT scheme needs interaction data and channel condition information between multiple communities, also needs to ensure phase alignment between many RRU simultaneously, at present for realizing difficult point.

Summary of the invention

The object of the embodiment of the present invention is to provide a kind of method of interference signal processing, can effectively suppress one or more strong jamming cell signals to subscriber equipment interference.

First aspect, a kind of method of interference signal processing, described method comprises:

Determine edge customer scheduling configuration parameter, interfered cell information and/or service cell information; Described scheduling configuration parameter at least comprises scheduling resource position, pilot tone port numbers, reference signal initiation parameter, and described reference signal initiation parameter at least comprises scrambler mark, the pilot frequency sequence initialization seed value, the timeslot number n that introduce _s; Described interfered cell information at least comprises the interfered cell identification number that described edge customer signal is produced to interference; Described service cell information at least comprises the Serving cell identification number of described edge customer;

By privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to interfered cell, make described interfered cell adjust the scheduling configuration parameter of dispatched users according to described edge customer scheduling configuration parameter, make the pilot tone of described edge customer and described dispatched users orthogonal, wherein, described dispatched users is to take user identical or part running time-frequency resource with described edge customer in described interfered cell;

Revise the orthogonal guide frequency quantity of described edge customer, the quantity that makes the orthogonal guide frequency of described edge customer is the original quantity of orthogonal guide frequency of described edge customer and quantity sum of the orthogonal guide frequency of described dispatched users, but the maximum orthogonality pilot number that the system that is no more than designs in advance, if exceed, described orthogonal guide frequency quantity is set to described maximum orthogonality pilot number, and makes the base station protocol failure codeword number of described edge customer;

Described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, detects decoding by MIMO antenna system.

In conjunction with first aspect, in the possible implementation of the first of first aspect, the orthogonal guide frequency quantity of the described edge customer of described amendment, comprising:

Set in advance described interfered cell and only coordinate P transport layer stream.

In conjunction with the possible implementation of the first of first aspect or first aspect, in the possible implementation of the second of first aspect, the orthogonal guide frequency quantity of the described edge customer of described amendment, comprising:

The quantity of the orthogonal guide frequency of interfered cell, according to the size of the interference signal intensity of interfered cell, is distributed, when the interfered cell of interference signal intensity maximum in multiple interfered cells, the quantity of distributing maximum orthogonal guide frequencies in described Serving cell.

In conjunction with first aspect, in the third possible implementation of first aspect, describedly by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to interfered cell, make described interfered cell according to described edge customer scheduling configuration parameter adjustment coordinate the scheduling configuration parameter of dispatched users in described interfered cell, comprising:

Describedly by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to strong jamming community, described in making interfered cell coordinate according to described edge customer scheduling configuration parameter adjustment described in the scheduling configuration parameter of dispatched users in strong jamming community.

In conjunction with the third possible implementation of the possible implementation of the second of the possible implementation of the first of first aspect or first aspect or first aspect or first aspect, in the 4th kind of possible implementation of first aspect, described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, comprising:

The maximum orthogonality pilot number that described edge customer designs in advance according to described system, carries out orthogonal pilot channels estimation.

Second aspect, a kind of method of interference signal processing, described method comprises:

Interfered cell receives the scheduling configuration parameter of the Serving cell transmission of edge customer by privately owned interface or X2 interface;

The scheduling configuration parameter of the dispatched users of described interfered cell is coordinated in described interfered cell according to described scheduling configuration parameter.

In conjunction with second aspect, in the possible implementation of the first of second aspect, described method also comprises:

Described interfered cell receives after harmony messages, all safeguards a timer, and in the time not receiving within the predetermined time the coordination request of Serving cell, does not carry out and the coordination of described Serving cell described interfered cell.

In conjunction with the possible implementation of the first of second aspect or second aspect, in the possible implementation of the second of second aspect, the scheduling configuration parameter of the dispatched users of described interfered cell is coordinated in described interfered cell according to described scheduling configuration parameter, comprising:

Described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community.

In conjunction with the possible implementation of the second of second aspect, in the third possible implementation of second aspect, described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the edge customer of the dispatched users of described strong jamming community and described multiple Serving cells the overlapping ratio of running time-frequency resource judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the overlapping ratio of the running time-frequency resource of described edge customer is maximum, described in edge customer described in strong jamming cell coordination.

In conjunction with the possible implementation of the second of second aspect, in the 4th kind of possible implementation of second aspect, described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, the described strong jamming community ratio overlapping according to described running time-frequency resource, the information of the described strong jamming community of measuring with described multiple Serving cells is calculated interference factor, when calculating the interference factor of described edge customer when maximum, described in edge customer described in strong jamming cell coordination.

In conjunction with the possible implementation of the second of second aspect, in the 5th kind of possible implementation of second aspect, described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the sequencing of described coordination request judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the Serving cell of described edge customer is sent coordination request at first, edge customer described in strong jamming cell coordination, and described strong jamming community identifies the dispatched users of the described strong jamming community after coordinating, make identified dispatched users no longer receive the coordination request of other Serving cells.

The third aspect, a kind of equipment of interference signal processing, described equipment comprises:

Determining unit, for determining edge customer scheduling configuration parameter, interfered cell information and/or service cell information; Described scheduling configuration parameter at least comprises scheduling resource position, pilot tone port numbers, reference signal initiation parameter, and described reference signal initiation parameter at least comprises scrambler mark, the pilot frequency sequence initialization seed value, the timeslot number n that introduce _s; Described interfered cell information at least comprises the interfered cell identification number that described edge customer signal is produced to interference; Described service cell information at least comprises the Serving cell identification number of described edge customer;

Transmitting element, for the scheduling configuration parameter of described edge customer being sent to interfered cell by privately owned interface or X2 interface, make described interfered cell adjust the scheduling configuration parameter of dispatched users according to described edge customer scheduling configuration parameter, make the pilot tone of described edge customer and described dispatched users orthogonal, wherein, described dispatched users is to take user identical or part running time-frequency resource with described edge customer in described interfered cell;

Amendment unit, for revising the orthogonal guide frequency quantity of described edge customer, the quantity that makes the orthogonal guide frequency of described edge customer is the original quantity of orthogonal guide frequency of described edge customer and quantity sum of the orthogonal guide frequency of described dispatched users, but the maximum orthogonality pilot number that the system that is no more than designs in advance, if exceed, described orthogonal guide frequency quantity is set to described maximum orthogonality pilot number, and makes the base station protocol failure codeword number of described edge customer;

Estimation unit, carries out orthogonal pilot channels estimation for described edge customer according to the quantity of amended orthogonal guide frequency, detects decoding by MIMO antenna system.

In conjunction with the third aspect, in the possible implementation of the first of the third aspect, the orthogonal guide frequency quantity of the described edge customer of execution step amendment in described amendment unit, comprising:

Set in advance described interfered cell and only coordinate P transport layer stream.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, in the possible implementation of the second of the third aspect, in described amendment unit, execution step changes the orthogonal guide frequency quantity of described edge customer, comprising:

The quantity of the orthogonal guide frequency of interfered cell, according to the size of the interference signal intensity of interfered cell, is distributed, when the interfered cell of interference signal intensity maximum in multiple interfered cells, the quantity of distributing maximum orthogonal guide frequencies in described Serving cell.

In conjunction with the third aspect, in the third possible implementation of the third aspect, described transmitting element, specifically for:

Describedly by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to strong jamming community, described in making interfered cell adjust according to described edge customer scheduling configuration parameter described in the scheduling configuration parameter of dispatched users in interfered cell.

In conjunction with the third possible implementation of the possible implementation of the second of the possible implementation of the first of the third aspect or the third aspect or the third aspect or the third aspect, in the 4th kind of possible implementation of the third aspect, described estimation unit, specifically for:

The maximum orthogonality pilot number that described edge customer designs in advance according to described system, carries out orthogonal pilot channels estimation.

Fourth aspect, a kind of equipment of interference signal processing, described equipment comprises:

Receiving element, the scheduling configuration parameter sending by the Serving cell of privately owned interface or X2 interface reception edge customer for interfered cell;

Coordination unit, coordinates the scheduling configuration parameter of the dispatched users of described interfered cell according to described scheduling configuration parameter for described interfered cell.

In conjunction with fourth aspect, in the possible implementation of the first of fourth aspect, described equipment also comprises:

Timer, receives after harmony messages for described interfered cell, all safeguards a timer, and in the time not receiving within the predetermined time the coordination request of Serving cell, does not carry out and the coordination of described Serving cell described interfered cell.

In conjunction with the possible implementation of the first of fourth aspect or fourth aspect, in the possible implementation of the second of fourth aspect, described coordination unit, specifically for:

Described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community.

In conjunction with the possible implementation of the second of fourth aspect, in the third possible implementation of fourth aspect, described coordination unit, specifically for:

In the time that strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the edge customer of the dispatched users of described strong jamming community and described multiple Serving cells the overlapping ratio of running time-frequency resource judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the overlapping ratio of the running time-frequency resource of described edge customer is maximum, described in edge customer described in strong jamming cell coordination.

In conjunction with the possible implementation of the second of fourth aspect, in the 4th kind of possible implementation of fourth aspect, described coordination unit, specifically for:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, the described strong jamming community ratio overlapping according to described running time-frequency resource, the information of the described strong jamming community of measuring with described multiple Serving cells is calculated interference factor, when calculating the interference factor of described edge customer when maximum, described in edge customer described in strong jamming cell coordination.

In conjunction with the possible implementation of the second of fourth aspect, in the 5th kind of possible implementation of fourth aspect, described coordination unit, specifically for:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the sequencing of described coordination request judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the Serving cell of described edge customer is sent coordination request at first, edge customer described in strong jamming cell coordination, and described strong jamming community identifies the dispatched users of the described strong jamming community after coordinating, make identified dispatched users no longer receive the coordination request of other Serving cells.

The invention provides a kind of method of interference signal processing, described method is by the information of the measurements interference community, Serving cell of edge customer, and described information is sent to described interfered cell, make described interfered cell according to described information reconciliation pilot frequency configuration parameter, thereby realize the interference signal minimizing that interfered cell produces described edge customer.

Brief description of the drawings

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 skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the method schematic diagram of a kind of interference signal processing of providing of the embodiment of the present invention one;

Fig. 2 is the method flow diagram of a kind of interference signal processing of providing of the embodiment of the present invention two;

Fig. 3 is the method flow diagram of a kind of interference signal processing of providing of the embodiment of the present invention three;

Fig. 4 is the method flow diagram of a kind of interference signal processing of providing of the embodiment of the present invention four;

Fig. 5 is the method schematic diagram of a kind of interference signal processing of providing of the embodiment of the present invention;

Fig. 6 is the method schematic diagram of a kind of interference signal processing of providing of the embodiment of the present invention;

Fig. 7 is the method flow diagram of a kind of interference signal processing of providing of the embodiment of the present invention five;

Fig. 8 is the equipment structure chart of a kind of interference signal processing of providing of the embodiment of the present invention six;

Fig. 9 is the equipment structure chart of a kind of interference signal processing of providing of the embodiment of the present invention seven;

Figure 10 is the structure drawing of device of a kind of base station of providing of the embodiment of the present invention eight;

Figure 11 is the structure drawing of device of a kind of subscriber equipment of providing of the embodiment of the present invention nine.

Embodiment

In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Embodiment mono-

The 9th edition (Long Term Evolution-Release9 of Long Term Evolution, LTE-Rel9) introduce multi-user beam excipient (Multi-User Beamforming, MUBF), adopt demodulated reference signal (Demodulation Reference Signal, DMRS) Antenna Port ensures the orthogonality between MUBF pilot tone, (transparent expression UE does not need to know whether oneself is MUBF transmitting to realize transparent MUBF, do not need to know whether that other users and it has shared identical running time-frequency resource), MUBF receiver can have multiple situation, as terminal is carried out least mean-square error (Minimum Mean Square Error by self fluxion, MMSE) detect, or adopt interference rejection to merge (Interference Reject Combining, IRC) detect and (estimate the statistics interference covariance matrix of pairing user and other interference signals, carry out IRC detection), or carry out MMSE detection by the total fluxion of pairing, abandon virtual stream testing result and reach the effect of disturbing inhibition, the detection algorithm principle here can be MMSE, IRC, maximum likelihood (Maximum Likelihood, ML), parallel interference is eliminated (Parallel Interference Cancellation, PIC), serial interference elimination (Successive Interference Cancellation, SIC) etc., obviously, the scheme detecting by the total fluxion of MUBF, owing to estimating pairing user's instantaneous channel information, thereby can reach good interference rejection.

Consider that the differentiation of Walsh code has:

$r(l,k)=H_0{w}_{00}{\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{<figure-callout\; id="0"\; label="scid"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">scid</figure-callout>}0}+q\&CenterDot;H_0{w}_{01}{\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{<figure-callout\; id="0"\; label="scid"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">scid</figure-callout>}0}+I_{00}+n_{00}---\left(1\right)$

$r(l+1,k)=H_0{w}_{00}{\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{<figure-callout\; id="0"\; label="scid"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">scid</figure-callout>}0}+\stackrel{\&OverBar;}{q}\&CenterDot;H_0{w}_{01}{\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{<figure-callout\; id="0"\; label="scid"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">scid</figure-callout>}0}+I_{01}+n_{01}---\left(2\right)$

Wherein q is the s in formula (3).Q=0or1,

l is pilot tone OFDM symbol, and k is pilot sub-carrier number.

Here suppose continuous two OFDMs (Orthogonal Frequency Division multiplexing, OFDM) symbol changes and can ignore, thereby a code point pilot tone is applicable to middle low speed scene.lS channel estimating:

${\mathrm{<figure-callout\; id="7"\; label="H\; port"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">H</figure-callout>}}_{\mathrm{port}}={\hat{H}}_0{\hat{w}}_{00}=\frac{{\mathrm{<figure-callout\; id="0"\; label="r\; usr"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">\; <figure-callout\; id="0"\; label="r\; usr"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">r</figure-callout>\; </figure-callout>}}_{\mathrm{usr}}\&CenterDot;{\left({\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{scid}0}\right)}^{*}+{\mathrm{<figure-callout\; id="0"\; label="r\; usr"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">\; <figure-callout\; id="1"\; label="r\; usr"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">r</figure-callout>\; </figure-callout>}}_{\mathrm{usr}}\&CenterDot;{\left({\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{scid}0}\right)}^{*}}{2}$

$=\frac{H_0{w}_{00}+I_{00}{\left({\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{scid}0}\right)}^{*}+n_{00}{\left({\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{scid}0}\right)}^{*}+H_0{w}_{00}+I_0{\left({\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{scid}0}\right)}^{*}+n_{01}{\left({\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{scid}0}\right)}^{*}}{2}---\left(3\right)$

$=H_0{w}_{00}+\frac{I_{00}{\left({\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{scid}0}\right)}^{*}+n_{00}{\left({\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{scid}0}\right)}^{*}+I_{01}{\left({\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{scid}0}\right)}^{*}+n_{01}{\left({\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{scid}0}\right)}^{*}}{2}$

$H_{\mathrm{port}8,\mathrm{LS}}={\hat{H}}_0{\hat{w}}_{01}=\frac{{\mathrm{<figure-callout\; id="0"\; label="r\; usr"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">\; <figure-callout\; id="0"\; label="r\; usr"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">r</figure-callout>\; </figure-callout>}}_{\mathrm{usr}}\&CenterDot;q\&CenterDot;{\left({\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{scid}0}\right)}^{*}+\stackrel{\&OverBar;}{q}\&CenterDot;{\mathrm{<figure-callout\; id="0"\; label="r\; usr"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">\; <figure-callout\; id="1"\; label="r\; usr"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">r</figure-callout>\; </figure-callout>}}_{\mathrm{usr}}\&CenterDot;{\left({\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{scid}0}\right)}^{*}}{2}$

$=\frac{H_0{w}_{01}+q(I_{00}{\left({\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{scid}0}\right)}^{*}+n_{00}{\left({\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{scid}0}\right)}^{*})+H_0{w}_{01}+\stackrel{\&OverBar;}{q}(I_{01}{\left({\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{scid}0}\right)}^{*}+n_{01}{\left({\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{scid}0}\right)}^{*})}{2}---\left(4\right)$

$=H_0{w}_{01}+\frac{q(I_{00}{\left({\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{scid}0}\right)}^{*}+n_{00}{\left({\mathrm{<figure-callout\; id="0"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_0^{\mathrm{scid}0}\right)}^{*})+\stackrel{\&OverBar;}{q}(I_{01}{\left({\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{scid}0}\right)}^{*}+n_{01}{\left({\mathrm{<figure-callout\; id="1"\; label="s"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">s</figure-callout>}}_1^{\mathrm{scid}0}\right)}^{*})}{2}$

Wherein, () ^*for asking for conjugate operation.

Can find out from formula above, for orthogonal guide frequency demodulated reference signal (Demodulation Reference Signal, DRS) channel estimating, pilot frequency locations least square (Least Square, LS) channel estimation value well demodulation out, and, owing to adopting two continuous pilot position channel values to do on average, the variance of noise section has also reduced, and can bring good performance gain in low signal-to-noise ratio (Signal to Noise Ratio, SNR) interval.

In Fig. 1, suppose that left side pilot tone port Port7 configures the UE1 to community 1, Cell1, the right pilot tone port Port8 configures the UE2 to Cell2, and UE1 and UE2 are positioned on identical running time-frequency resource, and for LTE Rel-8/9/10 agreement, pilot signal is $r\left(m\right)=\frac{1}{\sqrt{2}}(1-2\&CenterDot;c\left(2m\right))+\mathrm{<figure-callout\; id="1"\; label="j"\; filenames="HDA00002672702200011.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{1}{\sqrt{2}}(1-2\&CenterDot;c(2m+1)),$ Wherein c (i) is pseudo random sequence, pilot frequency sequence generate seed with

it is relevant,

for minizone, pilot tone exists to be disturbed, and UE1 or UE2 also just cannot carry out transparent MIMO by the total fluxion of MUBF and detect reception.

If random seed c _initnumber not associated with each physical cell identity, as adopted

as long as ensure X, n between multiple communities _sCID, n _sconsistency, just can accomplish as in single subdistrict, ensure the orthogonality of pilot tone port.This patent is with pilot frequency sequence initialization seed

for example, to carry out the minizone coordination of making a start, and then reach receiving terminal and disturb the object suppressing, other randomization seeds designs be as long as not associated each physical cell identity number can design by the present invention of this principle, amendment interaction parameter.

Under identical networking scene, community 1 is the Resource Block (Resource Block, RB) of edge UE scheduling, SCID, X value, No. Port, timeslot number n _sinform the strong jamming of community 2(community by X2 interface or privately owned interface, strong jamming community is definite can adopt the measured value of local area signal and adjacent area interference signal as received signal strength indicator (Received Signal Strength Indication, RSSI) or interference signal intensity (as Reference Signal Received Power Reference Signal Receiving Power, RSRP) or letter dry than (Signal to Interference plus Noise Ratio, SINR) difference is less than a threshold value, community 2 is configured to the SCID identical with 1 edge UE scheduling RB position, community on these RB as far as possible, X value, orthogonal No. Port, timeslot number n _s.The edge UE1 of community 1 carries out demodulation by 2 streams, and (the transmission number of plies of the initial instruction of supposition UE1 (is indicated by Rank Indicator, RI) be 1, for single current sends), in order to make UE1 carry out demodulation by 2 streams, in the transmission number of plies of base station side amendment UE1, (cell edge UE is generally a transport layer, by single-stream transmission, the RI value that base station side amendment UE reports), single current is revised as double fluid, other flow processs are still consistent with single current, second code word is virtual code word, and second layer corresponding to code word is virtual level, do not carry out data transmission.UE1 demodulation is carried out demodulation by 2 streams, as adopt the receivers such as MMSE/ML/PIC/SIC, suppose that second code word is invalid virtual code word (base station is known), the A/N of two code words of feedback (confirms the non-confirmation of Acknowledge/ Negative, ACK/NACK) be cyclic redundancy check (CRC) (Cycic Redundancy Check, CRC) check results, ACK represents that verification is correct, NACK represents check errors), second code word is N (NACK), base station is known, does not carry out any operation.The Multiinputoutput (Multiple InputMultiple Output, MIMO) finally completing in the transparent situation of terminal UE detects, and demodulation reaches inter-cell coordination and disturbs the object that suppresses reception.

The first step: Cell1 determines edge UE scheduling parameter configuration, disturbed condition.(safeguarding the mark whether this RB coordinated or required other cell coordinations to cross) simultaneously;

Second step: Cell1 informs that by privately owned interface or X2 interface upper surface information is respectively to Cell2/7/8(the strong jamming community that Cell1UE1/3/2 is corresponding);

The 3rd step: Cell2/7/8 adjusts the PORT/SCID/X configuration of corresponding dispatched users according to upper surface information, and stamps and coordinate mark (bring again and coordinate while avoiding other communities to carry out above Cell1 similar operations, also have information repeated interaction);

The 4th step: the Cell1 edge UE1 transmission number of plies is 2, other transmitting flow processs are consistent with the transmission number of plies 1, Cell1 base station protocol failure codeword number;

The 5th step: UE is 2 to carry out the channel estimating of two orthogonal guide frequencies by the transmission number of plies, carries out 2 stream MIMO and detects, decoding, the A/N of two code words of feedback.

Embodiment bis-

With reference to figure 2, Fig. 2 is the method flow diagram of a kind of interference signal processing of providing of the embodiment of the present invention two.As shown in Figure 2, said method comprising the steps of:

Step 201, determines edge customer scheduling configuration parameter, interfered cell information and/or service cell information; Described scheduling configuration parameter at least comprises scheduling resource position, pilot tone port numbers, reference signal initiation parameter, and described reference signal initiation parameter at least comprises scrambler mark, the pilot frequency sequence initialization seed value, the timeslot number n that introduce _s; Described interfered cell information at least comprises the interfered cell identification number that described edge customer signal is produced to interference; Described service cell information at least comprises the Serving cell identification number of described edge customer;

Wherein, edge customer is user according to the reference signal quality of measuring Serving cell and interfered cell, and in the time that both differ in a default threshold value, this user is edge customer.Interfered cell is the interference signal that user receives other communities except service cell signal, and described other communities are interfered cell.Serving cell is to be user's service, and the community transmitting control signal to user.

Concrete, Cell1, the scheduling configuration parameter of edge customer Cell1UE1, interfered cell information and/or service cell information are confirmed in community 1, described scheduling configuration parameter comprises that scheduling resource position, pilot tone port numbers, reference signal initiation parameter are as the pilot frequency sequence initialization seed value of scrambler mark, introducing, timeslot number n _sdeng, described interfered cell information comprises interfered cell identification number (the Received Signal Strength Indication that described edge customer signal is produced to interference, RSSI) and interference signal intensity (Reference SignalReceiving Power, RSRP) one of at least, described service cell information comprises the Serving cell identification number of described edge customer, signal strength signal intensity and signal quality are (as dry than Signal to Interference plus Noise Ratio in believed, be abbreviated as SINR, carry dry making an uproar than Carrier to Interference plus Noise Ratio, be abbreviated as CINR, signal to noise ratio Signal to Noise Ratio, be abbreviated as SNR, signal interference ratio Signal to Interference Ratio, be abbreviated as SIR, Reference Signal Received Quality Reference Signal Receiving Quality, one of be abbreviated as RSRQ) at least.

Step 202, by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to interfered cell, make described interfered cell adjust the scheduling configuration parameter of dispatched users according to described edge customer scheduling configuration parameter, make the pilot tone of described edge customer and described dispatched users orthogonal, wherein, described dispatched users is to take user identical or part running time-frequency resource with described edge customer in described interfered cell;

Described dispatched users is to take user identical or the identical running time-frequency resource of part with Cell1 edge customer in Cell2 community.

Alternatively, describedly by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to interfered cell, make described interfered cell adjust the scheduling configuration parameter of dispatched users in described interfered cell according to described edge customer scheduling configuration parameter.

Step 203, revise the orthogonal guide frequency quantity of described edge customer, the quantity that makes the orthogonal guide frequency of described edge customer is the original quantity of orthogonal guide frequency of described edge customer and quantity sum of the orthogonal guide frequency of described dispatched users, but the maximum orthogonality pilot number that the system that is no more than designs in advance, if exceed, described orthogonal guide frequency quantity is set to described maximum orthogonality pilot number, and makes the base station protocol failure codeword number of described edge customer;

Alternatively, the orthogonal guide frequency quantity of the described edge customer of described amendment, comprising:

Set in advance described interfered cell and only coordinate P transport layer stream.

Alternatively, the orthogonal guide frequency quantity of the described edge customer of described amendment, comprising:

The quantity of the orthogonal guide frequency of interfered cell, according to the size of the interference signal intensity of interfered cell, is distributed in described Serving cell, and in multiple interfered cells the interfered cell of interference signal intensity maximum, the quantity of distributing maximum orthogonal guide frequencies.

Concrete, Cell1, according to interference signal intensity, carries out pilot tone port assignment to Cell2/3/4, if Cell2 is that Cell1UE1Cell2 distributes 2 ports, Cell3 distributes 1 port, now do not need again mutual with Cell4 because do not had orthogonal guide frequency port to distribute.

Step 204, described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, detects decoding by MIMO antenna system.

Alternatively, the maximum orthogonality pilot number that described edge customer designs in advance according to described system, carries out orthogonal pilot channels estimation.

The embodiment of the present invention provides a kind of method of interference signal processing, described method is by the information of the measurements interference community, Serving cell of edge customer, and described information is sent to described interfered cell, make described interfered cell according to described information reconciliation pilot frequency configuration parameter, the interference signal that interfered cell produces described edge customer is reduced.

Embodiment tri-

With reference to figure 3, Fig. 3 is the method flow diagram of a kind of interference signal processing of providing of the embodiment of the present invention three.As shown in Figure 3, said method comprising the steps of:

Step 301, interfered cell receives the scheduling configuration parameter of the Serving cell transmission of edge customer by privately owned interface or X2 interface;

Step 302, the scheduling configuration parameter of the dispatched users of described interfered cell is coordinated in described interfered cell according to described scheduling configuration parameter.

As one embodiment alternatively, described method also comprises:

Described interfered cell receives after harmony messages, all safeguards a timer, and in the time not receiving within the predetermined time the coordination request of Serving cell, does not carry out and the coordination of described Serving cell described interfered cell.

Alternatively, the scheduling configuration parameter of the dispatched users of described interfered cell is coordinated in described interfered cell according to described scheduling configuration parameter, comprising:

Described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community.

Concrete, described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the edge customer of the dispatched users of described strong jamming community and described multiple Serving cells the overlapping ratio of running time-frequency resource judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the overlapping ratio of the running time-frequency resource of described edge customer is maximum, described in strong jamming community be that described edge customer is coordinated.

Concrete, described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, the described strong jamming community ratio overlapping according to described running time-frequency resource, the information of the described strong jamming community of measuring with described multiple Serving cells is calculated interference factor, when calculating the interference factor of described edge customer when maximum, described in edge customer described in strong jamming cell coordination.

Concrete, described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the sequencing of described coordination request judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the Serving cell of described edge customer is sent coordination request at first, edge customer described in strong jamming cell coordination, and described strong jamming community identifies the dispatched users of the described strong jamming community after coordinating, make identified dispatched users no longer receive the coordination request of other Serving cells.

The embodiment of the present invention provides a kind of method of interference signal processing, the scheduling configuration parameter that described method sends by receiving Serving cell, and coordinate the scheduling configuration parameter of the dispatched users of described interfered cell according to described scheduling configuration parameter, the interference that described interfered cell produces described edge customer is reduced.

Embodiment tetra-

With reference to figure 4, Fig. 4 is the method flow diagram of a kind of interference signal processing of providing of the embodiment of the present invention four.As shown in Figure 4, said method comprising the steps of:

Step 401, determines edge customer scheduling configuration parameter, interfered cell information and/or service cell information; Described scheduling configuration parameter at least comprises scheduling resource position, pilot tone port numbers, reference signal initiation parameter, and described reference signal initiation parameter at least comprises scrambler mark, the pilot frequency sequence initialization seed value, the timeslot number n that introduce _s; Described interfered cell information at least comprises the interfered cell identification number that described edge customer signal is produced to interference; Described service cell information at least comprises the Serving cell identification number of described edge customer;

Step 402, by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to strong jamming community, described in making, the scheduling configuration parameter of dispatched users is adjusted in strong jamming community according to described edge customer scheduling configuration parameter, make the pilot tone of described edge customer and described dispatched users orthogonal, wherein, described dispatched users is in described strong jamming community and described edge customer takies user identical or part running time-frequency resource;

Concrete, under identical networking scene, community 1 is the running time-frequency resource position of edge UE1 scheduling, reference signal initiation parameter is informed (strong jamming community, strong jamming community by X2 interface or privately owned interface, interference signal Qiang community), as in table 1 for UE1, strong jamming community has 2/3/4/5, strong jamming community is community 2, reference table 1 and table 2.

Optional embodiment, when the RSRP(of strong jamming community can be other signal quality measured values) while being greater than predetermined threshold value with the difference of the RSRP of Serving cell, do not carry out the coordination process of Cell2 and edge customer., when the difference that judges the RSRP of strong jamming community and the RSRP of Serving cell is greater than the threshold value setting in advance, described strong jamming community is negligible to the interference effect of described edge customer, therefore, does not need to carry out the coordination of cell2 and edge customer.

As Fig. 5, strong jamming community Cell2 and Cell1UE1 exist the overlapping user of scheduling running time-frequency resource to have 3, Cell2UE1/2/3, Cell2UE15 RB (Resource Block) and Cell1UE1 are overlapping, also have 2 RB and Cell1UE1 not overlapping, because the overlapping ratio of Cell2UE1 is 5/7, be greater than 1/2, Cell2UE1 need to coordinate to Cell1UE1, no longer receive the coordination of other edge customers, Cell2UE1, according to the pilot tone parameter configuration of the scheduling configuration parameter amendment of Cell1UE1 oneself, reaches the object orthogonal with Cell1UE1 pilot tone; For Cell2UE3, due to completely overlapping with Cell1UE1, carry out the amendment of pilot tone parameter configuration with Cell2UE1 is similar; For Cell2UE3, due to the overlapping ratio of Cell1UE1 be 3/7, be less than 1/2, now need according to whether having other edge customers to have coordination requirement to Cell2UE3, if had, and it is larger than 3/7 to take ratio, and Cell2UE3 coordinates at preferential and other communities.Now, the sequencing that Cell2 also can coordinate according to request is coordinated, and no matter overlapping ratio or other conditions, if Cell1 is the community of carrying out at first interference coordination to Cell2 request, Cell2 is with regard to only for Cell1UE1 carries out interference coordination so, Cell2UE1/2/3 all, according to the pilot tone parameter configuration of the scheduling configuration parameter amendment of Cell1UE1 oneself, reaches the object orthogonal with Cell1UE1 pilot tone.

A kind of optional embodiment is, by privately owned interface and/or X2 interface by described edge customer scheduling configuration parameter and interfered cell information, as RSRP etc., send to strong jamming community Cell2, Cell2 may accept the coordination request of multiple communities, now Cell2UE1 and UE3 need to coordinate community according to signal strength parameters such as overlapping ratio and RSRP and selected, as Fig. 5, the strong jamming community of Cell3UE1 is also Cell2, also need Cell2 to coordinate, now Cell2 just need to carry out decision-making, can consider to adopt interference factor to weigh.

Concrete, for Cell2UE1, need decision-making to coordinate according to Cell1 or the demand of Cell3, as Fig. 6, according to table 1 and table 2, Cell2 is RSRP_Cell1_UE1=-93dBm to the interference signal intensity of Cell1 UE1, and Cell2 is RSRP_Cell3_UE1=-88dBm to the interference signal intensity of Cell3 UE1, and the interference factor of coordinating for Cell1 UE1 can be expressed as γ ₁, the interference factor of coordinating for Cell3UE1 can be expressed as γ ₂10 ^{((88)-(93))/10}, wherein γ ₁for Cell1 UE1 and the overlapping RB of Cell2 UE1 take the ratio of the total RB number of Cell2 UE1, γ in this example ₁=5/7, wherein γ ₂=4/7, obviously γ ₂10 ^{((88)-(93))/10}be greater than γ ₁, Cell2 UE1 is preferably Cell3 UE1 and coordinates.Here weight calculation has only been considered interference signal intensity, does not consider the signal quality of Cell1 UE1 and Cell3 UE1 itself and other interfered cell information.

As the optional embodiment of another kind, Cell1 sends to strong jamming community Cell2 by privately owned interface and/or X2 interface by information, and the packets of information is here containing Cell ID, RSRP, RSSI, SINR, SIR, CINR, SNR, one of at least, Cell1 interference factor can comprise the S1NR of Cell1 UE1, CINR to RSRQ, SIR, SNR, RSRQ is one of at least, the signal strength signal intensity of the Serving cell Cell1 that Cell1 UE1 measures, the information such as other interfered cell signal strength signal intensities.Finally record with Cell1 UE1 scheduling running time-frequency resource and have the multiplexing fluxion of overlapping user, being assumed to Cell2 UE1 is that L1 stream and Cell2 UE2 are L2 stream, then give alternately pilot tone port numbers, the reference signal initiation parameter of the Cell1 UE1 of Cell2 according to Cell1, Cell2 UE1 and Cell2 UE2 complete the amendment of pilot tone parameter configuration, reach the object orthogonal with Cell1 UE1 pilot tone.

The priority river pagination of coordinating request according to described request when described strong jamming community judge whether with described multiple Serving cells in one of them Serving cell carry out universal time coordinated,, strong jamming community identifies the dispatched users after coordinating, and makes identified dispatched users no longer receive the coordination request of other Serving cells.Final Cell2 needs mark to carry out the running time-frequency resource of pilot tone parameter configuration amendment, avoids again carrying out alternately with other communities.

Table 1

Table 2

Table 3

In this step, in the described strong jamming community that takies identical or the identical running time-frequency resource of part according to the adjustment of described edge customer scheduling configuration parameter and described edge customer, the orthogonal guide frequency configuration parameter of dispatched users is specially: according to the scheduling resource position of described edge customer, reference signal initiation parameter as scrambler mark, the pilot frequency sequence initialization seed value introduced, timeslot number n _sdeng, by the reference signal initiation parameter of dispatched users in taking the strong jamming community of identical or part same band with described edge customer as scrambler mark, the pilot frequency sequence initialization seed value introduced, timeslot number n _sbe adjusted to the value identical with described edge customer; According to the pilot tone port numbers of described edge customer, by from described edge customer take identical part is identical or the strong jamming community of the identical running time-frequency resource of part in the pilot tone port numbers of dispatched users be adjusted to the value different with described edge customer, ensure the orthogonality between pilot tone.

Step 403, revise the orthogonal guide frequency quantity of described edge customer, the quantity that makes the orthogonal guide frequency of described edge customer is the original quantity of orthogonal guide frequency of described edge customer and quantity sum of the orthogonal guide frequency of described dispatched users, but the maximum orthogonality pilot number that the system that is no more than designs in advance, if exceed, described orthogonal guide frequency quantity is set to described maximum orthogonality pilot number, and makes the base station protocol failure codeword number of described edge customer;

Invalid code word is imaginary code word, a code word has identical modulation and coding parameter configuration, a code word can be mapped to one or more transport layers or stream, each transport layer or stream need there is corresponding pilot tone port, be used for carrying out the detection demodulation of data, different agreement is all had an agreement to this, can comprise one or more code words to user's service, suppose corresponding 1 transport layer of each code word, in the time that amendment transport layer or stream are 2, need two code words, and data in the past only have a code word, thereby because the increase of transport layer or stream causes fabricating another one code word, this imaginary code word is invalid code word, or also can become virtual code word.Transport layer and stream are equivalents.

In this step, revise the multiplexing fluxion of described edge customer from K1 (being more than or equal to 1) to K2, K2=min (K1+L, Z), in strong jamming community Cell2, the orthogonal guide frequency quantity of dispatched users is L, Z is the maximum orthogonality pilot number of system, utilize pilot tone before the amendment of described edge customer and the parameter of data, adjust code word mapping relations, ensure that described edge customer data-mapping is to one or more code words, correspond to K1 layer multiplex data, virtual code word corresponds to K2-K1 layer multiplex data, and make the base station protocol failure codeword number of described edge customer.

As another kind of embodiment, after described edge customer can be supposed amendment, total fluxion K2 is Z, carries out channel estimating and MIMO detection frequently by Z conductance always.

In this step, described edge customer needs K2 conductance frequently to carry out channel estimating, and in order to obtain the channel estimation value that all orthogonal guide frequencies are corresponding, RANK value (multiplexing fluxion) K1 that revises edge customer described in the base station of described edge customer is K2; And ensure that K1 stream is mapped to one or more code words, be designated as effective code word, effectively code word only comprises the initial data of K1 stream, still transmitting is consistent other handling processes with K1 stream, remaining K2-K1 stream is virtual stream, correspond to virtual code word, described virtual stream is not carried out data and pilot transmission, makes described edge customer carry out demodulation according to the quantity K2 of total orthogonal guide frequency.

For example, the edge UE1 of community 1 carries out channel estimating by the orthogonal guide frequency that on UE1 scheduling resource, community 1/2 relates to, as table 1 and Fig. 2, obtain the channel estimation value that all orthogonal guide frequencies are corresponding, suppose that Cell1UE1 is 1 stream transmitting, Cell2 UE1 is 1 stream transmitting, Cell2 UE2 is 2 stream transmittings, the total orthogonal guide frequency number of system is 2, then Cell1 UE1 carries out demodulation by total layer (stream) several 2, in order to make UE1 carry out demodulation by 2 streams, be the multiplexing fluxion that this edge customer of 2(RANK value representation sends in the RANK value of base station side amendment UE1, base station by downlink signaling as RI(Rank Indicator) inform that user transmits the number of plies), the multiplexing fluxion of Cell1 UE1 is revised as 2 streams from 1 stream, and ensure that 1 original stream of Cell1 UE1 is mapped to a code word (if the K1>1 of Cell1 UE1, can be multiple code words), be designated as effective code word, effectively code word only comprises the initial data of 1 stream, other handling process still with 1 stream transmittings are consistent, as data and pilot transmission, all undertaken by 1 stream, be that effective running time-frequency resource need to be considered frequently by 2 conductances, other K2-K1=1 streams are virtual stream, do not carry out data and pilot transmission.

Step 404, described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, detects decoding by MIMO antenna system.

In this step, described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, detect (MIMO detection by MIMO antenna system, as MMSE detects, ML detects, IRC detection etc.), decoding, verification, if the check results of virtual code word is not passed through, retransmission process is not carried out in base station.

For example, UE1 demodulation is carried out demodulation by K2 stream, as adopt the receivers such as MMSE/ML/IRC, virtual code word corresponding to virtual stream is invalid virtual code word (base station is known), UE1 feeds back the CRC check result of each code word, if virtual code word CRC check erroneous results, after base station is known, does not carry out retransmission operation.The MIMO antenna system (Multiple-Input Multiple-Out-put, MIMO) that finally completes UE1 detects, and demodulation reaches inter-cell coordination and disturbs the object that suppresses reception.

The embodiment of the present invention provides a kind of method of interference signal processing, described method is by the information of the measurements interference community, Serving cell of edge customer, and strong jamming community described in described information is sent to, make the strongest described interfered cell according to described information reconciliation pilot frequency configuration parameter, the interference signal that described in making, strong jamming community produces described edge customer reduces, make effectively to suppress strong jamming cell signal to described edge customer interference.

Embodiment five

With reference to figure 7, Fig. 7 is the method flow diagram of a kind of interference signal processing of providing of the embodiment of the present invention five.Described method comprises:

Step 701, determines edge customer scheduling configuration parameter, interfered cell information and/or service cell information; Described scheduling configuration parameter at least comprises scheduling resource position, pilot tone port numbers, reference signal initiation parameter, and described reference signal initiation parameter at least comprises scrambler mark, the pilot frequency sequence initialization seed value, the timeslot number n that introduce _s; Described interfered cell information at least comprises the interfered cell identification number that described edge customer signal is produced to interference; Described service cell information at least comprises the Serving cell identification number of described edge customer;

For example, under identical networking scene, community 1 (Cell1) is the running time-frequency resource position of edge UE1 scheduling, reference signal configuration information exchange crosses X2 interface or privately owned interface is informed (strong jamming community, strong jamming community, interference signal compare Qiang community, can judge by the difference of interfered cell RSRP and Cell1 UE1 Serving cell RSRP, only have when difference is less than certain threshold value and just coordinate, as table 1, suppose that threshold value is 5dB, so for Cell1 UE1, only need to coordinate Cell2, Cell3 and Cell4), as in following table for UE1, strong jamming community has 2/3/4, strong jamming community is community 2, reference table 4.Optional embodiment, in the time that the RSRP of strong jamming community (can be other signal quality measured values) is greater than predetermined threshold value with the difference of the RSRP of Serving cell, does not carry out the coordination process of strong jamming community.

Table 4

Step 702, by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to strong jamming community Cell2/3/4, make Cell2/3/4 take the pilot frequency configuration parameter of the dispatched users of identical or the identical running time-frequency resource of part according to the adjustment of described edge customer scheduling configuration parameter and described edge customer, make the pilot tone of described edge customer and described dispatched users orthogonal, wherein, described dispatched users is to take user identical or part running time-frequency resource with described edge customer in described interfered cell;

Alternatively, Cell2 UE1 is L1 stream, and Cell2 UE2 is L2 stream, L1≤L2, final UE2 carries out pilot tone orthogonalization by L2 stream with Cell1 UE1 on earth, or is consistent and carries out pilot tone orthogonalization parameter configuration by L1 stream multiplexing transmission and Cell1 UE1 with Cell2 UE1, is optional.Finally coordinating L1 stream or the result of L2 stream, (result is designated as L to Cell2 simultaneously, be described as the quantity of the orthogonal guide frequency of dispatched users in strong jamming community) send to Cell1 by privately owned interface and/or X2 interface, Cell1 UE1 can calculate amended total orthogonal guide frequency number according to this result

In this step, in Cell2/3/4, exist the overlapping user of scheduling running time-frequency resource whether to coordinate with Cell1 UE1, the final fluxion refer step 703 of coordinating of Cell2/3/4, suppose that it is 1 stream that Cell2 finally coordinates fluxion, Cell3 is 2 streams, Cell4 is 2 streams, the maximum fluxion of system is 4 streams, Cell2/3/4 receives the edge customer scheduling configuration parameter that Cell1 sends separately, as table 4, and Cell2 interference signal intensity maximum, Cell3 and Cell4 take second place, thereby Cell2 first coordinates, now after described edge UE and Cell2 coordination, total pilot tone port number is 2, also do not reach system maximum orthogonality pilot tone port number, Cell2 sends to Cell3 table 5, Cell3 is according to parameter coordination pilot tone port, after now coordinating, total pilot tone port number is 4, reach system maximum orthogonality pilot tone port number, then Cell3 and Cell2 similar fashion, send and coordinate rear information to Cell4, Cell4 finds to have reached maximum orthogonality pilot tone port number, just no longer coordinate.

Optional embodiment is, Cell2/3/4 is receiving after Cell1 harmony messages, all safeguard a timer, within the time of agreement, do not receive the harmony messages of interference signal intensity Geng Qiang community in Cell1 harmony messages, as Cell3 does not receive Cell2, Cell4 does not receive Cell3, does not just carry out and the coordinated manipulation of Cell1.

Optional embodiment is, the pilot tone port of only coordinating P stream is all fixed in all strong jammings community, be 4 at supposition system maximum orthogonality pilot tone port number, in a stream situation of described edge customer Cell1 UE1 transmitting, if P=1, Cell2/3/4 only coordinates a stream, if P=2, because system has the restriction of maximum orthogonality pilot tone port number, only coordinate Cell2.

Another kind of optional embodiment is that Cell1, according to interference signal intensity, carries out pilot tone port assignment to Cell2/3/4, as Cell2 distributes 2 ports, Cell3 distributes 1 port, now do not need again mutual with Cell4 because do not had orthogonal guide frequency port to distribute.

Table 5

In this step, in the described strong jamming community that takies identical or the identical running time-frequency resource of part according to the adjustment of described edge customer scheduling configuration parameter and described edge customer, the orthogonal guide frequency configuration parameter of dispatched users is specially: the pilot frequency sequence initialization seed value that identifies, introduces as scrambler according to the scheduling resource position of described edge customer, reference signal initiation parameter, timeslot number n _sdeng, by the reference signal initiation parameter of dispatched users in taking the strong jamming community of identical or part same band with described edge customer as scrambler mark, the pilot frequency sequence initialization seed value introduced, timeslot number n _sbe adjusted to the value identical with described edge customer; According to the pilot tone port numbers of described edge customer, the strong jamming district pilots port arrangement of the pilot tone port numbers of coordinates interference cell coordination or agreement, by from described edge customer take identical part is identical or the strong jamming community of the identical running time-frequency resource of part in the pilot tone port numbers of dispatched users be adjusted to the value different with other coordinates interference community user orthogonal guide frequency port numbers with described edge customer, ensure the orthogonality between pilot tone.

Step 703, revise the orthogonal guide frequency quantity of described edge customer, the quantity that makes the orthogonal guide frequency of described edge customer is the original quantity of orthogonal guide frequency of described edge customer and quantity sum of the orthogonal guide frequency of described dispatched users, but the maximum orthogonality pilot tone port number that the system that is no more than designs in advance, if exceed, described orthogonal guide frequency quantity is set to described maximum orthogonality pilot number, and makes the base station protocol failure codeword number of described edge customer;

In this step, revise the multiplexing fluxion of described edge customer from K1 (being more than or equal to 1) to K2, K2=min (K1+L, Z), in the Cell2/3/4 of strong jamming community, the orthogonal guide frequency quantity of dispatched users is L, Z is the maximum orthogonality pilot number of system, as in the time that the quantity Z of all orthogonal guide frequencies of system is less than K1+L, and K2=Z; Utilize pilot tone before the amendment of described edge customer and the parameter of data, adjust code word mapping relations, ensure that described edge customer data-mapping is to one or more code words, correspond to K1 layer multiplex data, virtual code word corresponds to K2-K1 layer multiplex data, and makes the base station protocol failure codeword number of described edge customer.As another kind of embodiment, after described edge customer can be supposed amendment, total fluxion K2 is Z, carries out channel estimating frequently by Z conductance always.

When dispatched users has when multiple, as Cell2 UE1/2/3 scheduling resource all with as described in edge customer deposit overlappingly, L may be selected to be UE1, UE2, pilot number maximum in UE3, equals the transmission number of plies maximum in UE1/2/3, the maximum orthogonality pilot number that Z is system, optionally, to lack owing to needing the fluxion of coordinating on some scheduling resource, as Fig. 5, the Cell2 UE1 transmission number of plies is L1=1, the Cell2 UE2 transmission number of plies is L2=2, the Cell2UE3 transmission number of plies is L3=3, the described edge customer transmission number of plies is K1=1, if described edge customer carries out pilot settings by K2=K1+3, the resource taking for Cell2 UE1, the interference of described edge customer is only had to a layer, if therefore carry out pilot number setting by 3 interfere with layer, described edge customer is detected to decoding and bring extra complexity, and may introduce larger detection error, for example is avoided such feelings

do, additive method does not enumerate as set up the form method such as table look-up according to simulation result.Utilize pilot tone before the amendment of described edge customer and the parameter of data, adjust code word mapping relations, ensure that described edge customer data-mapping is to one or more code words, correspond to K1 layer multiplex data, virtual code word corresponds to K2-K1 layer multiplex data, and makes the base station protocol failure codeword number of described edge customer.

In this step, described edge customer needs K2 conductance frequently to carry out channel estimating, and in order to obtain the channel estimation value that all orthogonal guide frequencies are corresponding, RANK value (multiplexing fluxion) K1 that revises edge customer described in the base station of described edge customer is K2; And ensure that K1 stream is mapped to one or more code words, be designated as effective code word, effectively code word only comprises the initial data of K1 stream, still transmitting is consistent other handling processes with K1 stream, remaining K2-K1 stream is virtual stream, correspond to virtual code word, described virtual stream is not carried out data and pilot transmission, makes described edge customer carry out demodulation according to the quantity K2 of total orthogonal guide frequency.

Step 704, described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, detects decoding by MIMO antenna system.

In this step, described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, detect (MIMO detection by MIMO antenna system, as MMSE detects, ML detects, IRC detection etc.), decoding, verification, if the check results of virtual code word is not passed through, retransmission process is not carried out in base station.

The embodiment of the present invention provides a kind of method of interference signal processing, the scheduling configuration parameter that described method sends by receiving Serving cell, and according to the scheduling configuration parameter of the dispatched users of the described multiple interfered cells of described scheduling configuration parameter coordination, the interference that described multiple interfered cell produces described edge customer is reduced.

Embodiment six

With reference to figure 8, Fig. 8 is the equipment structure chart of a kind of interference signal processing of providing of the embodiment of the present invention six.Described equipment comprises as lower unit:

Determining unit 801, for determining edge customer scheduling configuration parameter, interfered cell information and/or service cell information; Described scheduling configuration parameter at least comprises scheduling resource position, pilot tone port numbers, reference signal initiation parameter, and described reference signal initiation parameter at least comprises scrambler mark, the pilot frequency sequence initialization seed value, the timeslot number n that introduce _s; Described interfered cell information at least comprises the interfered cell identification number that described edge customer signal is produced to interference; Described service cell information at least comprises the Serving cell identification number of described edge customer;

Transmitting element 802, for the scheduling configuration parameter of described edge customer being sent to interfered cell by privately owned interface or X2 interface, make described interfered cell adjust the scheduling configuration parameter of dispatched users according to described edge customer scheduling configuration parameter, make the pilot tone of described edge customer and described dispatched users orthogonal, wherein, described dispatched users is to take user identical or part running time-frequency resource with described edge customer in described interfered cell;

Attainable, described transmitting element, specifically for:

Describedly by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to strong jamming community, described in making interfered cell coordinate according to described edge customer scheduling configuration parameter adjustment described in the scheduling configuration parameter of dispatched users in interfered cell.

Amendment unit 803, for revising the orthogonal guide frequency quantity of described edge customer, the quantity that makes the orthogonal guide frequency of described edge customer is the original quantity of orthogonal guide frequency of described edge customer and quantity sum of the orthogonal guide frequency of described dispatched users, but the maximum orthogonality pilot number that the system that is no more than designs in advance, if exceed, described orthogonal guide frequency quantity is set to described maximum orthogonality pilot number, and makes the base station protocol failure codeword number of described edge customer;

Attainable, the orthogonal guide frequency quantity of the described edge customer of execution step amendment in described amendment unit 803, comprising:

Set in advance described interfered cell and only coordinate P transport layer stream.

Attainable, in described amendment unit 803, execution step changes the orthogonal guide frequency quantity of described edge customer, comprising:

The quantity of the orthogonal guide frequency of interfered cell, according to the size of the interference signal intensity of interfered cell, is distributed, when the interfered cell of interference signal intensity maximum in multiple interfered cells, the quantity of distributing maximum orthogonal guide frequencies in described Serving cell.

Estimation unit 804, carries out orthogonal pilot channels estimation for described edge customer according to the quantity of amended orthogonal guide frequency, detects decoding by MIMO antenna system.

As the attainable mode of another kind, described estimation unit, specifically for:

The maximum orthogonality pilot number that described edge customer designs in advance according to described system, carries out orthogonal pilot channels estimation.

The embodiment of the present invention provides a kind of subscriber equipment, the scheduling configuration parameter that described subscriber equipment sends by receiving Serving cell, and according to the scheduling configuration parameter of the dispatched users of the described multiple interfered cells of described scheduling configuration parameter coordination, the interference that described multiple interfered cell produces described edge customer is reduced.

Embodiment seven

With reference to figure 9, Fig. 9 is the equipment structure chart of a kind of interference signal processing of providing of the embodiment of the present invention seven.Described equipment comprises as lower unit:

Receiving element 901, the scheduling configuration parameter sending by the Serving cell of privately owned interface or X2 interface reception edge customer for interfered cell;

Coordination unit 902, coordinates the scheduling configuration parameter of the dispatched users of described interfered cell according to described scheduling configuration parameter for described interfered cell.

Attainable, described coordination unit 902, specifically for:

Described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community.

Attainable, described coordination unit 902, specifically for:

In the time that strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the edge customer of the dispatched users of described strong jamming community and described multiple Serving cells the overlapping ratio of running time-frequency resource judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the overlapping ratio of the running time-frequency resource of described edge customer is maximum, described in edge customer described in strong jamming cell coordination.

Attainable, described coordination unit 902, specifically for:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, the described strong jamming community ratio overlapping according to described running time-frequency resource, the information of the described strong jamming community of measuring with described multiple Serving cells is calculated interference factor, when calculating the interference factor of described edge customer when maximum, described in edge customer described in strong jamming cell coordination.

Attainable, described coordination unit 902, specifically for:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the sequencing of described coordination request judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the Serving cell of described edge customer is sent coordination request at first, edge customer described in strong jamming cell coordination, and described strong jamming community identifies the dispatched users of the described strong jamming community after coordinating, make identified dispatched users no longer receive the coordination request of other Serving cells.

As the attainable mode of one, described equipment also comprises:

Timer, receives after harmony messages for described interfered cell, all safeguards a timer, and in the time not receiving within the predetermined time the coordination request of Serving cell, does not carry out and the coordination of described Serving cell described interfered cell.

The embodiment of the present invention provides a kind of subscriber equipment, the scheduling configuration parameter that described subscriber equipment sends by receiving Serving cell, and according to the scheduling configuration parameter of the dispatched users of the described multiple interfered cells of described scheduling configuration parameter coordination, the interference that described multiple interfered cell produces described edge customer is reduced.

Embodiment eight

With reference to Figure 10, Figure 10 is the structure drawing of device of a kind of base station of providing of the embodiment of the present invention eight.With reference to Figure 10, Figure 10 is a kind of base station 1000 that the embodiment of the present invention provides, and the specific embodiment of the invention does not limit the specific implementation of described equipment.Described base station 1000 comprises:

Processor (processor) 1001, communication interface (Communications Interface) 1002, memory (memory) 1003, bus 1004.

Processor 1001, communication interface 1002, memory 1003 completes mutual communication by bus 1004.

Communication interface 1002, for communicating with subscriber equipment;

Processor 1001, for executive program.

Particularly, program can comprise program code, and described program code comprises computer-managed instruction.

Processor 1001 may be a central processor CPU, or specific integrated circuit ASIC(Application Specific Integrated Circuit), or be configured to implement one or more integrated circuits of the embodiment of the present invention.

Memory 1003, for depositing program.Memory 1003 may comprise high-speed RAM memory, also may also comprise nonvolatile memory (non-volatile memory).Program specifically can comprise:

Determine edge customer scheduling configuration parameter, interfered cell information and/or service cell information; Described scheduling configuration parameter at least comprises scheduling resource position, pilot tone port numbers, reference signal initiation parameter, and described reference signal initiation parameter at least comprises scrambler mark, the pilot frequency sequence initialization seed value, the timeslot number n that introduce _s; Described interfered cell information at least comprises the interfered cell identification number that described edge customer signal is produced to interference; Described service cell information at least comprises the Serving cell identification number of described edge customer;

By privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to interfered cell, make described interfered cell adjust the scheduling configuration parameter of dispatched users according to described edge customer scheduling configuration parameter, make the pilot tone of described edge customer and described dispatched users orthogonal, wherein, described dispatched users is to take user identical or part running time-frequency resource with described edge customer in described interfered cell;

Revise the orthogonal guide frequency quantity of described edge customer, the quantity that makes the orthogonal guide frequency of described edge customer is the original quantity of orthogonal guide frequency of described edge customer and quantity sum of the orthogonal guide frequency of described dispatched users, but the maximum orthogonality pilot number that the system that is no more than designs in advance, if exceed, described orthogonal guide frequency quantity is set to described maximum orthogonality pilot number, and makes the base station protocol failure codeword number of described edge customer;

Described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, detects decoding by MIMO antenna system.

The orthogonal guide frequency quantity of the described edge customer of described amendment, comprising:

Set in advance described interfered cell and only coordinate P transport layer stream.

The orthogonal guide frequency quantity of the described edge customer of described amendment, comprising:

The quantity of the orthogonal guide frequency of interfered cell, according to the size of the interference signal intensity of interfered cell, is distributed, when the interfered cell of interference signal intensity maximum in multiple interfered cells, the quantity of distributing maximum orthogonal guide frequencies in described Serving cell.

Describedly by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to interfered cell, make described interfered cell according to described edge customer scheduling configuration parameter adjustment coordinate the scheduling configuration parameter of dispatched users in described interfered cell, comprising:

Describedly by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to strong jamming community, described in making interfered cell coordinate according to described edge customer scheduling configuration parameter adjustment described in the scheduling configuration parameter of dispatched users in interfered cell.

Described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, comprising:

The maximum orthogonality pilot number that described edge customer designs in advance according to described system, carries out orthogonal pilot channels estimation.

Embodiment nine

With reference to Figure 11, Figure 11 is the structure drawing of device of a kind of subscriber equipment of providing of the embodiment of the present invention nine.With reference to Figure 11, Figure 11 is a kind of subscriber equipment 1100 that the embodiment of the present invention provides, and the specific embodiment of the invention does not limit the specific implementation of described equipment.Described subscriber equipment 1100 comprises:

Processor (processor) 1101, communication interface (Communications Interface) 1102, memory (memory) 1103, bus 1104.

Processor 1101, communication interface 1102, memory 1103 completes mutual communication by bus 1104.

Communication interface 1102, for communicating with base station;

Processor 1101, for executive program.

Particularly, program can comprise program code, and described program code comprises computer-managed instruction.

Processor 1101 may be a central processor CPU, or specific integrated circuit ASIC(Application Specific Integrated Circuit), or be configured to implement one or more integrated circuits of the embodiment of the present invention.

Memory 1103, for depositing program.Memory 1103 may comprise high-speed RAM memory, also may also comprise nonvolatile memory (non-volatile memory).Program specifically can comprise:

Interfered cell receives the scheduling configuration parameter of the Serving cell transmission of edge customer by privately owned interface or X2 interface;

The scheduling configuration parameter of the dispatched users of described interfered cell is coordinated in described interfered cell according to described scheduling configuration parameter.

Described method also comprises:

Described interfered cell receives after harmony messages, all safeguards a timer, and in the time not receiving within the predetermined time the coordination request of Serving cell, does not carry out and the coordination of described Serving cell described interfered cell.

The scheduling configuration parameter of the dispatched users of described interfered cell is coordinated in described interfered cell according to described scheduling configuration parameter, comprising:

Described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community.

Described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the edge customer of the dispatched users of described strong jamming community and described multiple Serving cells the overlapping ratio of running time-frequency resource judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the overlapping ratio of the running time-frequency resource of described edge customer is maximum, described in edge customer described in strong jamming cell coordination.

Described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, the described strong jamming community ratio overlapping according to described running time-frequency resource, the information of the described strong jamming community of measuring with described multiple Serving cells is calculated interference factor, when calculating the interference factor of described edge customer when maximum, described in edge customer described in strong jamming cell coordination.

Described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the sequencing of described coordination request judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the Serving cell of described edge customer is sent coordination request at first, edge customer described in strong jamming cell coordination, and described strong jamming community identifies the dispatched users of the described strong jamming community after coordinating, make identified dispatched users no longer receive the coordination request of other Serving cells.

The above is only the preferred embodiment of the present invention, does not form limiting the scope of the present invention.Any any amendment of doing within the present invention, be equal to and replace and improvement etc., all should be included within requirement of the present invention comprises scope.

Claims (22)

1. a method for interference signal processing, is characterized in that, described method comprises:

Determine edge customer scheduling configuration parameter, interfered cell information and/or service cell information; Described scheduling configuration parameter at least comprises scheduling resource position, pilot tone port numbers, reference signal initiation parameter, and described reference signal initiation parameter at least comprises scrambler mark, the pilot frequency sequence initialization seed value, the timeslot number n that introduce _s; Described interfered cell information at least comprises the interfered cell identification number that described edge customer signal is produced to interference; Described service cell information at least comprises the Serving cell identification number of described edge customer;

By privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to interfered cell, make described interfered cell adjust the scheduling configuration parameter of dispatched users according to described edge customer scheduling configuration parameter, make the pilot tone of described edge customer and described dispatched users orthogonal, wherein, described dispatched users is to take user identical or part running time-frequency resource with described edge customer in described interfered cell;

Revise the orthogonal guide frequency quantity of described edge customer, the quantity that makes the orthogonal guide frequency of described edge customer is the original quantity of orthogonal guide frequency of described edge customer and quantity sum of the orthogonal guide frequency of described dispatched users, but the maximum orthogonality pilot number that the system that is no more than designs in advance, if exceed, described orthogonal guide frequency quantity is set to described maximum orthogonality pilot number, and makes the base station protocol failure codeword number of described edge customer;

Described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, detects decoding by MIMO antenna system.

2. method according to claim 1, is characterized in that, the orthogonal guide frequency quantity of the described edge customer of described amendment, comprising:

Set in advance described interfered cell and only coordinate P transport layer stream.

3. method according to claim 1 and 2, is characterized in that, the orthogonal guide frequency quantity of the described edge customer of described amendment, comprising:

The quantity of the orthogonal guide frequency of interfered cell, according to the size of the interference signal intensity of interfered cell, is distributed, when the interfered cell of interference signal intensity maximum in multiple interfered cells, the quantity of distributing maximum orthogonal guide frequencies in described Serving cell.

4. method according to claim 1, it is characterized in that, describedly by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to interfered cell, make described interfered cell according to described edge customer scheduling configuration parameter adjustment coordinate the scheduling configuration parameter of dispatched users in described interfered cell, comprising:

Describedly by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to strong jamming community, described in making interfered cell coordinate according to described edge customer scheduling configuration parameter adjustment described in the scheduling configuration parameter of dispatched users in interfered cell.

5. according to the method described in claim 1-4 any one, it is characterized in that, described edge customer carries out orthogonal pilot channels estimation according to the quantity of amended orthogonal guide frequency, comprising:

The maximum orthogonality pilot number that described edge customer designs in advance according to described system, carries out orthogonal pilot channels estimation.

6. a method for interference signal processing, is characterized in that, described method comprises:

Interfered cell receives the scheduling configuration parameter of the Serving cell transmission of edge customer by privately owned interface or X2 interface;

The scheduling configuration parameter of the dispatched users of described interfered cell is coordinated in described interfered cell according to described scheduling configuration parameter.

7. method according to claim 6, is characterized in that, described method also comprises:

Described interfered cell receives after harmony messages, all safeguards a timer, and in the time not receiving within the predetermined time the coordination request of Serving cell, does not carry out and the coordination of described Serving cell described interfered cell.

8. according to the method described in claim 6 or 7, it is characterized in that, the scheduling configuration parameter of the dispatched users of described interfered cell is coordinated in described interfered cell according to described scheduling configuration parameter, comprising:

Described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community.

9. method according to claim 8, is characterized in that, described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the edge customer of the dispatched users of described strong jamming community and described multiple Serving cells the overlapping ratio of running time-frequency resource judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the overlapping ratio of the running time-frequency resource of described edge customer is maximum, described in edge customer described in strong jamming cell coordination.

10. method according to claim 8, is characterized in that, described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, the described strong jamming community ratio overlapping according to described running time-frequency resource, the information of the described strong jamming community of measuring with described multiple Serving cells is calculated interference factor, when calculating the interference factor of described edge customer when maximum, described in edge customer described in strong jamming cell coordination.

11. methods according to claim 8, is characterized in that, described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community, comprising:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the sequencing of described coordination request judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the Serving cell of described edge customer is sent coordination request at first, edge customer described in strong jamming cell coordination, and described strong jamming community identifies the dispatched users of the described strong jamming community after coordinating, make identified dispatched users no longer receive the coordination request of other Serving cells.

The equipment of 12. 1 kinds of interference signal processing, is characterized in that, described equipment comprises:

Determining unit, for determining edge customer scheduling configuration parameter, interfered cell information and/or service cell information; Described scheduling configuration parameter at least comprises scheduling resource position, pilot tone port numbers, reference signal initiation parameter, and described reference signal initiation parameter at least comprises scrambler mark, the pilot frequency sequence initialization seed value, the timeslot number n that introduce _s; Described interfered cell information at least comprises the interfered cell identification number that described edge customer signal is produced to interference; Described service cell information at least comprises the Serving cell identification number of described edge customer;

Transmitting element, for the scheduling configuration parameter of described edge customer being sent to interfered cell by privately owned interface or X2 interface, make described interfered cell adjust the scheduling configuration parameter of dispatched users according to described edge customer scheduling configuration parameter, make the pilot tone of described edge customer and described dispatched users orthogonal, wherein, described dispatched users is to take user identical or part running time-frequency resource with described edge customer in described interfered cell;

Amendment unit, for revising the orthogonal guide frequency quantity of described edge customer, the quantity that makes the orthogonal guide frequency of described edge customer is the original quantity of orthogonal guide frequency of described edge customer and quantity sum of the orthogonal guide frequency of described dispatched users, but the maximum orthogonality pilot number that the system that is no more than designs in advance, if exceed, described orthogonal guide frequency quantity is set to described maximum orthogonality pilot number, and makes the base station protocol failure codeword number of described edge customer;

Estimation unit, carries out orthogonal pilot channels estimation for described edge customer according to the quantity of amended orthogonal guide frequency, detects decoding by MIMO antenna system.

13. equipment according to claim 12, is characterized in that, the orthogonal guide frequency quantity of the described edge customer of execution step amendment in described amendment unit, comprising:

Set in advance described interfered cell and only coordinate P transport layer stream.

14. according to the equipment described in claim 12 or 13, it is characterized in that, in described amendment unit, execution step changes the orthogonal guide frequency quantity of described edge customer, comprising:

The quantity of the orthogonal guide frequency of interfered cell, according to the size of the interference signal intensity of interfered cell, is distributed, when the interfered cell of interference signal intensity maximum in multiple interfered cells, the quantity of distributing maximum orthogonal guide frequencies in described Serving cell.

15. equipment according to claim 12, is characterized in that, described transmitting element, specifically for:

Describedly by privately owned interface or X2 interface, the scheduling configuration parameter of described edge customer is sent to strong jamming community, described in making interfered cell coordinate according to described edge customer scheduling configuration parameter adjustment described in the scheduling configuration parameter of dispatched users in interfered cell.

16. according to the equipment described in claim 12-15 any one, it is characterized in that, and described estimation unit, specifically for:

The maximum orthogonality pilot number that described edge customer designs in advance according to described system, carries out orthogonal pilot channels estimation.

The equipment of 17. 1 kinds of interference signal processing, is characterized in that, described equipment comprises:

Receiving element, the scheduling configuration parameter sending by the Serving cell of privately owned interface or X2 interface reception edge customer for interfered cell;

Coordination unit, coordinates the scheduling configuration parameter of the dispatched users of described interfered cell according to described scheduling configuration parameter for described interfered cell.

18. equipment according to claim 17, is characterized in that, described equipment also comprises:

Timer, receives after harmony messages for described interfered cell, all safeguards a timer, and in the time not receiving within the predetermined time the coordination request of Serving cell, does not carry out and the coordination of described Serving cell described interfered cell.

19. according to the equipment described in claim 17 or 18, it is characterized in that, and described coordination unit, specifically for:

Described strong jamming community coordinate according to described scheduling configuration parameter described in the pilot frequency configuration parameter of dispatched users of strong jamming community.

20. equipment according to claim 19, is characterized in that, described coordination unit, specifically for:

In the time that strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the edge customer of the dispatched users of described strong jamming community and described multiple Serving cells the overlapping ratio of running time-frequency resource judge whether with described multiple Serving cells in one of them Serving cell coordinate

In the time that the overlapping ratio of the running time-frequency resource of described edge customer is maximum, described in edge customer described in strong jamming cell coordination.

21. equipment according to claim 19, is characterized in that, described coordination unit, specifically for:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, the described strong jamming community ratio overlapping according to described running time-frequency resource, the information of the described strong jamming community of measuring with described multiple Serving cells is calculated interference factor, when calculating the interference factor of described edge customer when maximum, described in edge customer described in strong jamming cell coordination.

22. equipment according to claim 19, is characterized in that, described coordination unit, specifically for:

In the time that described strong jamming community receives the coordination request from multiple Serving cells, described strong jamming community according to the sequencing of described coordination request judge whether with described multiple Serving cells in one of them Serving cell coordinate, in the time that the Serving cell of described edge customer is sent coordination request at first, edge customer described in strong jamming cell coordination, and described strong jamming community identifies the dispatched users of the described strong jamming community after coordinating, make identified dispatched users no longer receive the coordination request of other Serving cells.

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