CN103684522B - A kind of method and apparatus of multi-cell joint detection - Google Patents

Abstract

The invention discloses a kind of method and apparatus of multi-cell joint detection, the method comprises: network equipment obtains the correlation information between neighbor cell, and obtains the related cell pair that correlation meets preset requirement; Described network equipment utilizes double small district joint-detection mode described correlation to be met to the related cell of preset requirement to carrying out joint-detection.In the embodiment of the present invention, the information that adjacent cell user can be utilized to participate in joint-detection carries out multi-cell joint detection, thus makes uplink receiving signal achieve the better quality of reception, and reduces the interference of the whole network.

Description

A kind of method and apparatus of multi-cell joint detection

Technical field

The present invention relates to communication technical field, particularly relate to a kind of method and apparatus of multi-cell joint detection.

Background technology

At TD-SCDMA(TimeDivision-SynchronousCodeDivisionMultipleAcc ess, TD SDMA) in system, joint-detection (also known as Multiuser Detection) is one of core algorithm of TD-SCDMA system, joint-detection makes full use of and takies same asset (time slot, carrier wave) different user (physical code channel) between correlation, the intersymbol interference caused by multipath can be eliminated to greatest extent, the bad multi-access inference caused of code channel correlation, and the interference etc. of co-frequency neighbor cell.

Because the code channel in a time slot in TD-SCDMA system is that 16(user is few), the scrambler of base station is short (16), and uplink synchronous ensures the channel impulse response of the different user feature such as in the estimating window that length is 16, make to adopt the amount of calculation of joint detection algorithm little, and provide the possibility of realization.

Single community associated detection regards the user of adjacent cell as noise source, and the multiple antennas of multiple community to combine the complexity carrying out detecting very high, current chip hardware disposal ability can only accomplish the joint-detection of 1 or 2 antenna in cell; Wherein, the computing formula of joint-detection is as follows:

$\stackrel{\→}{d}={[A^H(R_n^{-1}\⊗I)A+I]}^{-1}{A}^H(R_n^{-1}\⊗I)\stackrel{\→}{e}={[A^H(R_{n1}^{-1}\⊗I)A+{\mathrm{\σ}}_{n\_\mathrm{rel}}^{2}I]}^{-1}{A}^H(R_{n1}^{-1}\⊗I)\stackrel{\→}{e};$ In above-mentioned formula, in order to carry out joint-detection based on above-mentioned formula, concrete analysis process is as follows: as shown in Figure 1, for the mode schematic diagram of TD-SCDMA system in same time slot, as can be seen from Figure 1, the data of each user are first through spreading code spread spectrum, and then by cumulative after channel, at receiver place, superimposed noise obtains receiving sequence e=Ad+n, then by detector (demodulator), demodulation is carried out to the data of all users, obtain estimated sequence.

For the mode of the TD-SCDMA system shown in Fig. 1, then the block diagram of the receiving terminal test section of TD-SCDMA system as shown in Figure 2; As can be seen from Figure 2, for the configuration of single community 8 antenna, through the AGC(AutomaticGainControl of 8 antennas, automatic growth control) after process, channel estimating is carried out to MID code data part, and obtains channel impulse response by the process after channel estimating.Further, write the discrete convolution of the compound spreading code after weighting, scrambling and complex value and channel impulse response as matrix form, can be used to the compound channel impulse response B matrix (in 16 chip period or in the scrambler cycle) of characterization system, B matrix is expanded, system transfers A matrix can be obtained.

As shown in Figure 3, for B matrix notation schematic diagram under multi-user multi-antenna, the spreading factor of a kth user is Q (k) ∈ (1,2,4,8,16), the symbolic number that each scrambler periodic packets contains is Nr=16/Q (k), and wherein Nr can think again the VRU(VirtualResourceUnit that spreading factor Q (k) is corresponding, virtual resource unit) number; Carry out row expansion during multi-user, be arranged in order symbolic number corresponding to the spreading factor of each user (VRU number); Adopt row expansion (Ka represents antenna number) during multiple antennas, each reception antenna has different channel impulse responses, carries out convolution with same spreading code, and arrange first convolution results of all antennas, the rest may be inferred.

In a convolution results, include the value (different colours represents) in different antennae, the size of B matrix is the effective length of each row is (Q (k)+W-1) Ka, total VRU number of all users of behavior; Namely indication multi-user can be this community user herein, also can be adjacent cell user; When producing B matrix column vector to adjacent cell user, adjacent cell channel can be adopted to estimate, and obtaining adjacent cell channel impulse response obtains with corresponding spreading code convolution.

As shown in Figure 4, be the expression schematic diagram using B matrix to form A battle array, the numeral 22 in Fig. 4 represents the symbol numbers of the first half of the Midamble code (i.e. training sequence) of the single time slot numerically certificate of TD-SCDMA system; Namely the computing formula applying above-mentioned joint-detection can calculate the joint detection results of Received signal strength.

In prior art, known by the description of system battle array make, in the system battle array of structure, there is adjacent cell user configuration information, when this community adopts MMSE(MinimumMeanSquareError to received signal, least mean-square error) demodulating information of adjacent cell VRU can be obtained after demodulation; And in inter-base station interface, do not define the mutual of adjacent cell demodulating data in current agreement, by the restriction that system realizes, can not support to transmit between the base station of big data quantity; Under this system, the data message of the adjacent cell user demodulated is discarded by as interfere information, and namely single community associated detection regards the user of adjacent cell as noise.

Realizing in process of the present invention, inventor finds at least there is following problem in prior art:

Because single community associated detection regards the upward signal of adjacent cell user as noise, abandoned adjacent cell user participate in joint-detection after information, thus gain be there is no to the detection of adjacent cell subscriber signal.

Summary of the invention

The embodiment of the present invention provides a kind of method and apparatus of multi-cell joint detection, carries out multi-cell joint detection with the information utilizing adjacent cell user to participate in joint-detection.

For achieving the above object, the embodiment of the present invention provides a kind of method of multi-cell joint detection, comprising:

Network equipment obtains the correlation information between neighbor cell, and obtains the related cell pair that correlation meets preset requirement;

Described network equipment utilizes double small district joint-detection mode described correlation to be met to the related cell of preset requirement to carrying out joint-detection.

The embodiment of the present invention provides a kind of method of multi-cell joint detection, comprising:

Network equipment to related cell to carrying out joint-detection;

Information relevant to other communities in joint detection results is sent to other communities described by described network equipment, the information relevant to self received by the soft merging in other communities described.

The embodiment of the present invention provides a kind of equipment of multi-cell joint detection, comprising:

Acquisition module, for obtaining the correlation information between neighbor cell, and obtains the related cell pair that correlation meets preset requirement;

Detection module, meets the related cell of preset requirement to carrying out joint-detection for utilizing double small district joint-detection mode to described correlation.

The embodiment of the present invention provides a kind of equipment of multi-cell joint detection, comprising:

Detection module, for related cell to carrying out joint-detection;

Sending module, for sending to other communities described, the information relevant to self received by the soft merging in other communities described by information relevant to other communities in joint detection results.

Compared with prior art, the embodiment of the present invention at least has the following advantages: in the embodiment of the present invention, the information that adjacent cell user can be utilized to participate in joint-detection carries out multi-cell joint detection, thus makes uplink receiving signal achieve the better quality of reception, and reduces the interference of the whole network.

Accompanying drawing explanation

In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the mode schematic diagram of TD-SCDMA system in same time slot in prior art;

Fig. 2 is the schematic diagram of the block diagram of the receiving terminal test section of TD-SCDMA system in prior art;

Fig. 3 be in prior art under multi-user multi-antenna B matrix notation schematic diagram;

Fig. 4 is the expression schematic diagram using B matrix to form A battle array in prior art;

Fig. 5 is the method flow schematic diagram of a kind of multi-cell joint detection that the embodiment of the present invention one provides;

Fig. 6 is the application scenarios schematic diagram of the embodiment of the present invention one;

Fig. 7 is the relevant treatment schematic diagram of double small district joint-detection mode in the embodiment of the present invention one;

Fig. 8 is the device structure schematic diagram of a kind of multi-cell joint detection that the embodiment of the present invention two provides;

Fig. 9 is the device structure schematic diagram of a kind of multi-cell joint detection that the embodiment of the present invention two provides.

Embodiment

Below in conjunction with the accompanying drawing in the present invention, be clearly and completely described the technical scheme in the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment one

The embodiment of the present invention one provides a kind of method of multi-cell joint detection, and the method can be applied in the TD-SCDMA system based on centralized deployment mode, and as shown in Figure 5, the method comprises the following steps:

Step 501, network equipment obtains the correlation information between neighbor cell, and obtains the related cell pair that correlation meets preset requirement.

In the embodiment of the present invention, the correlation information that network equipment obtains between neighbor cell includes but not limited to: network equipment utilizes the UE(UserEquipment of adjacent Liang Ge community, subscriber equipment) channel impulse response activates in the other side community respectively quantity and mean value obtains correlation information between neighbor cell; Wherein, the UE of the adjacent Liang Ge community quantity that channel impulse response activates in the other side community respectively and mean value larger, the right correlation in the related cell that Ze Gailiangge community forms is stronger.

Concrete, the correlation defining adjacent two minizones in the embodiment of the present invention is: within measurement unit's time, the inside UE quantity that channel impulse response activates in the other side community respectively of adjacent Liang Ge community and mean value, and the inside UE of adjacent Liang Ge community respectively in the other side community channel impulse response activate quantity and mean value larger, the right correlation in the related cell that Ze Gailiangge community forms is stronger, and can based on the right correlation in related cell to related cell to sorting (from small to large sequence or sort from big to small), then the related cell pair that correlation is the strongest can be obtained.

In the embodiment of the present invention, the UE quantity that channel impulse response activates in the other side community respectively of adjacent Liang Ge community and mean value, include but not limited to: the quantity of overlapping covered interior the activated UE in minizone of this Liang Ge community, follow-up for the quantity of activation UE be described.

Be described in detail to the embodiment of the present invention below in conjunction with the application scenarios shown in Fig. 6, suppose that this community is A, multiple same frequency adjacent cell is respectively B1, B2, B3, B4, B5, B6; Then network equipment needs to obtain the correlation information between all neighbor cells (A, B1, B2, B3, B4, B5, B6) in whole region, and sorts to the correlation of neighbor cell.

In figure 6, the mean value (quantity of overlapping covered interior the activated UE in minizone of Ji Liangge community) of the UE number that the numeral of minizone overlapping region activates in Liang Ge community simultaneously, therefore to the sort result of (from big to small sequence) of the correlation of neighbor cell can be: (A:B1), (B4:B5), (B1:B2), (B2:B3), (A:B5), (A:B3), (B1:B6).

It should be noted that, above-mentioned community is not final related cell pair to (A:B1), (B4:B5), (B1:B2), (B2:B3), (A:B5), (A:B3), (B1:B6), also needs to obtain final related cell pair based on above-mentioned ranking results further; First judge that community is to relation step by step according to order, A and B1 is defined as related cell pair, B4 and B5 is defined as related cell pair, again judge B1 and B2 can not be formed related cell to (its reason be B1 the selected community as A to), again judge that B2 and B3 can form related cell pair, again judge that A and B5, A and B3, B1 and B6 all can not form community pair.

Based on above-mentioned process, known currently have related cell to (A:B1), (B4:B5), (B2:B3), and based on the correlation information between adjacent cell, the result sorted to the correlation of neighbor cell is (A:B1), (B4:B5), (B2:B3).

In the embodiment of the present invention, for above-mentioned related cell to (A:B1), (B4:B5), (B2:B3), need therefrom to select the related cell pair that correlation meets preset requirement; Such as, when preset requirement is the strongest related cell pair of correlation, then correlation meets the related cell of preset requirement to being (A:B1); Again such as, when preset requirement is the strongest two related cell pair of correlation, then correlation meets the related cell of preset requirement to being (A:B1), (B4:B5).

In actual applications, the configuration of preset requirement can based on BBU(BuildingBasebandUnit, baseband processing unit) handling property of hardware processing resources; Such as, if the handling property of BBU hardware processing resources is to process the right calculating in two related cell, then preset requirement is two related cell pair that correlation is the strongest; If the handling property of BBU hardware processing resources is to process the right calculating in a related cell, then preset requirement is the related cell pair that correlation is the strongest.

For convenience of description, the related cell meeting preset requirement for correlation in the embodiment of the present invention carries out follow-up explanation to a related cell the strongest for correlation to (A:B1).

Step 502, network equipment utilizes double small district joint-detection mode correlation to be met to the related cell of preset requirement to carrying out joint-detection.

In the embodiment of the present invention, above-mentioned network equipment utilizes double small district joint-detection mode correlation to be met to the related cell of preset requirement to carrying out joint-detection, include but not limited to: network equipment utilizes transmission bandwidth information and deferred message correlation to be met the related cell of preset requirement to being configured on corresponding BBU hardware processing resources, and utilizes double small district joint-detection mode to meet the related cell of preset requirement to carrying out joint-detection to correlation by BBU hardware processing resources.

Further, network equipment utilizes transmission bandwidth information and deferred message correlation to be met the related cell of preset requirement to being configured on corresponding BBU hardware processing resources, include but not limited to: when the related cell that correlation meets preset requirement is to a related cell pair the strongest for correlation, then network equipment needs the strongest for this correlation related cell maximum and postpone on the BBU hardware processing resources of minimum contiguous base band to being configured to mutual transmission bandwidth; Such as, that related cell is configured to mutual transmission bandwidth to (A:B1) is maximum and postpone on minimum BBU hardware processing resources for network equipment.

It should be noted that, when the related cell that correlation meets preset requirement is to the multiple related cell pair strong for correlation, then network equipment is maximum and postpone on minimum BBU hardware processing resources to being configured to mutual transmission bandwidth by related cell the strongest for correlation, the related cell of correlation the last the second is large and postpone on time little BBU hardware processing resources to being configured to mutual transmission bandwidth time, by that analogy.

Such as, it is maximum and postpone on minimum BBU hardware processing resources that related cell is configured to mutual transmission bandwidth to (A:B1) by network equipment, and it is time large and postpone on time little BBU hardware processing resources that related cell is configured to mutual transmission bandwidth to (B4:B5).

In the embodiment of the present invention, network equipment utilizes double small district joint-detection mode correlation to be met to the related cell of preset requirement to carrying out joint-detection, comprise further: network equipment obtains the IQ(In-phaseQuadrature that correlation meets the internal Liang Ge community, related cell of preset requirement, inphase quadrature) circuit-switched data, decompose from the initial data of IQ circuit-switched data receiving terminal and receive data, and utilize MMSE algorithm to obtain correlation to meet the right joint detection results in the related cell of preset requirement.

Be described in detail below in conjunction with the relevant treatment of the application scenarios shown in Fig. 7 to double small district joint-detection mode; In the figure 7, the related cell that correlation meets preset requirement is to for related cell is to (A:B1), left-hand broken line represents IQ circuit-switched data interface, because the scene applying this double small district joint-detection mode is applicable to the physical treatment resource of connection at a high speed, baseband processing resource is the IQ circuit-switched data that directly can obtain Liang Ge community, according to this characteristic, directly can most optimally decompose reception data from the initial data of IQ circuit-switched data receiving terminal, and utilize MMSE algorithm to obtain optimal performance solution.

Further, at B dotted line place, represent the channel estimation results tectonic syntaxis matrix B of Liang Ge community, the feature of its matrix is 16 antenna two community multi-user's matrixes by the matrix-expand in Fig. 3; And owing to activating the whole UE Jun Liangge communities being not Liang Ge community, when generating the generation of B matrix, in its column vector, element portions is 0, and therefore its follow-up matrix operation may correspond to simplification, reaches the object reducing and process complexity.

Step 503, information relevant to small area for the related cell not meeting preset requirement in joint detection results (i.e. the result of the joint-detection of step 502) to other is sent to this community, the information relevant to self received by the soft merging in this community by network equipment.Wherein, network equipment to related cell to after carrying out joint-detection, information relevant to other communities in joint detection results can be sent to other communities described, the information relevant to self received by the soft merging in other communities described.

Such as, for above-mentioned related cell to (A:B1), (B4:B5), (B2:B3), meeting the related cell of preset requirement to being (A:B1), do not meet the related cell of preset requirement to during for (B4:B5) and (B2:B3), information relevant to the joint detection results Zhong Yu community B4 of (A:B1) for related cell is then needed to send to community B4, information relevant to the joint detection results Zhong Yu community B5 of (A:B1) for related cell is sent to community B5, information relevant to the joint detection results Zhong Yu community B2 of (A:B1) for related cell is sent to community B2, information relevant to the joint detection results Zhong Yu community B3 of (A:B1) for related cell is sent to community B3.

Further, each community is after receiving the information of being correlated with to the joint detection results Zhong Yuzhe community of (A:B1) related cell, can the information relevant to self that receives of soft merging, thus realize multiple cell up combine to receive strengthen, promote uplink receiving gain.

In the embodiment of the present invention, because soft merging process is applicable to process in BBU pond data interaction Bandwidth-Constrained scene between resource, therefore the process of the information relevant to self that receives of the soft merging in community, its method characteristic is: the adjacent cell data in the joint detection results of single community extracted, and sends to corresponding adjacent cell; Adjacent cell is sent into channel code decoder after doing the soft merging of relative users data and is done decoded operation.

Further, first average (mathematical expectation) (squared to amplitude, to be exactly the power activating each demodulation symbol corresponding to VRU) is got to the symbol amplitude b in two data blocks corresponding to the activation VRU of each adjacent cell UE: $A^{\left(j\right)}=\frac{1}{4N}\underset{k=1}{\overset{2}{\mathrm{\Σ}}}\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}\left(\right|\mathrm{Re}\left(b_{22j+i}^k\right)|+|\mathrm{Im}\left(b_{22j+i}^k\right)\left|\right),N=22;$

Afterwards, solve the variance of tonal signal according to average, be similar to and regard noise power as, provided by following formula:

${\left({\mathrm{\σ}}^2\right)}^j=\frac{1}{4N}\underset{k=1}{\overset{2}{\mathrm{\Σ}}}\underset{i=0}{\overset{N-1}{\mathrm{\Σ}}}({|\mathrm{Re}\left(b_{22j+i}^k\right)-{\stackrel{\‾}{d}}^{\left(j\right)}|}^2+{|\mathrm{Im}\left(b_{22j+i}^k\right)-{\stackrel{\‾}{d}}^{\left(j\right)}|}^2),N=22;j=0,...,K_{\mathrm{vru}}-1$

Afterwards, by the measurement A of each VRU ^(j), (σ ²) ^jpack with the Soft Inform ation after adjacent cell UE data demodulates and send to corresponding adjacent cell, be characterized in demand bandwidth less (single VRU only has 44 symbols).

In the embodiment of the present invention, after the information relevant to self that the soft merging in community receives (after the Soft Inform ation of related cell to this UE that the UE upstream data after joint-detection in (A:B1) and B2, B3 send over merge), then this network equipment also needs the SIR(SignaltoInterference again estimating UE, signal-to-jamming ratio), and the comparative result of the sir target value configured according to the SIR again estimated and open sea wharf, obtain power control command word, and send to UE.

Concrete, in the process of SIR again estimating UE, for the uplink receiving signal of a certain UE, suppose A _nrepresent the reception amplitude estimation value on the n of community, the variance of the interference noise that Shi community n measures, if F _nrepresent the multiplication factor merged, then network equipment estimates the SIR of UE again by following formula: $\mathrm{SIR}=\frac{{(\underset{n}{\mathrm{\Σ}}{A}_n\·F_n)}^2}{\underset{n}{\mathrm{\Σ}}{F}_n^2\·{\mathrm{\σ}}_n^2}.$

Further, according to maximum-ratio combing principle, simply F can also be established _n=A _n, and utilize above-mentioned formula again to estimate the SIR of UE.

Further, power control command word is obtained at the comparative result of the sir target value configured according to the SIR again estimated and open sea wharf, and send in the process of UE: up due to multiple cell Integrated Receiver list UE, the SIR of its estimation is higher than the SIR of single community reception, therefore the uplink transmission power of UE can force down by power control, and the most system-wide interference power entirety reduces.

It should be noted that, when same UE all activates in multiple minizone, because UE is different apart from multiple adjacent cell distance, the peak that its up impulse response obtains in each community is different, suppose that impulse response window width is configured to 16Chip, then need the multiple impulse response position Synthesis of multiple cell to consider, in uplink synchronous control procedure, ensure its equal not exit window in each community.

Based on this, can also comprise in the embodiment of the present invention: network equipment is by sending SS command word to UE, require that UE sends the time point of data or delayed transmission data or maintenance transmission data in advance, to adjust the uplink synchronous of UE, and ensure the multiple impulse response positions not exit window of UE in multiple community.

Wherein, the peak in Peak (n) ShiUE community n is supposed, P _boundthe reserved protection width on estimating window both sides, Peak _maxthe position at the peak value place that in multiple cell impulse response, power is the highest, Peak _targetpeak value target location (being traditionally arranged to be 1/3rd of window width); Then:

Network equipment, by sending SS command word to UE, requires that UE sends the time point of data or delayed transmission data or maintenance transmission data in advance, specifically comprises:

If $\underset{n=0}{\overset{N}{\mathrm{Max}}}\left(\mathrm{Peak}\left(n\right)\right)<16-P_{\mathrm{bound}},$ And then: work as Peak _max>Peak _targettime, by sending SS command word to UE, network equipment requires that UE sends data in advance; Work as Peak _max<Peak _targettime, network equipment requires the delayed transmission data of UE by sending SS command word to UE; Or,

If $\underset{n=0}{\overset{N}{\mathrm{Max}}}\left(\mathrm{Peak}\left(n\right)\right)>16-P_{\mathrm{bound}},$ And $\underset{n=0}{\overset{N}{\mathrm{Min}}}\left(\mathrm{Peak}\left(n\right)\right)>P_{\mathrm{bound}},$ Then: by sending SS command word to UE, network equipment requires that UE sends data in advance; Or,

If $\underset{n=0}{\overset{M}{\mathrm{Max}}}\left(\mathrm{Peak}\left(n\right)\right)<16-P_{\mathrm{bound}},$ And $\underset{n=0}{\overset{N}{\mathrm{Min}}}\left(\mathrm{Peak}\left(n\right)\right)<P_{\mathrm{bound}},$ Then: network equipment requires the delayed transmission data of UE by sending SS command word to UE; Or,

If $\underset{n=0}{\overset{N}{\mathrm{Max}}}\left(\mathrm{Peak}\left(n\right)\right)>16-P_{\mathrm{bound}},$ And $\underset{n=0}{\overset{N}{\mathrm{Min}}}\left(\mathrm{Peak}\left(n\right)\right)<P_{\mathrm{bound}},$ Then: by sending SS command word to UE, network equipment requires that UE keeps sending the time point of data.

In sum, in the embodiment of the present invention, by by community strong for correlation to be configured to connecting band roomy, postpone low contiguous processing function unit process, and adopt the associated detecting method of expansion to realize strengthening multi-cell joint detection, the demodulating information of this community UE that soft merging adjacent cell is sent, make the signal of uplink receiving achieve the better quality of reception, and reduce the interference of the whole network; And have and take into account the advantage such as implementation complexity and transmission bandwidth restriction, be conducive to the advantages such as fast Development, scene applicability be strong.

Embodiment two

Based on the inventive concept same with said method, additionally provide a kind of equipment of multi-cell joint detection in the embodiment of the present invention, as shown in Figure 8, this equipment comprises:

Acquisition module 11, for obtaining the correlation information between neighbor cell, and obtains the related cell pair that correlation meets preset requirement;

Detection module 12, meets the related cell of preset requirement to carrying out joint-detection for utilizing double small district joint-detection mode to described correlation.

Described acquisition module 11, specifically for utilizing the correlation information between the user equipment (UE) quantity that channel impulse response activates in the other side community respectively of adjacent Liang Ge community and mean value acquisition neighbor cell; Wherein, the UE of the adjacent Liang Ge community quantity that channel impulse response activates in the other side community respectively and mean value larger, the right correlation in the related cell that Ze Gailiangge community forms is stronger.

The UE quantity that channel impulse response activates in the other side community respectively of described adjacent Liang Ge community and mean value, comprising: the quantity of overlapping covered interior the activated UE in minizone of this Liang Ge community.

Described detection module 12, specifically for utilizing transmission bandwidth information and deferred message that described correlation is met the related cell of preset requirement to being configured on corresponding baseband processing unit BBU hardware processing resources, and double small district joint-detection mode is utilized to meet the related cell of preset requirement to carrying out joint-detection to described correlation by described BBU hardware processing resources.

Described detection module 12, when the related cell being further used for meeting preset requirement in described correlation is to a related cell pair the strongest for correlation, the strongest for this correlation related cell is maximum and postpone on minimum BBU hardware processing resources to being configured to mutual transmission bandwidth.

Described detection module 12, be further used for obtaining the inphase quadrature IQ circuit-switched data that described correlation meets the internal Liang Ge community, related cell of preset requirement, decompose from the initial data of IQ circuit-switched data receiving terminal and receive data, and utilize least mean-square error MMSE algorithm to obtain described correlation to meet the right joint detection results in the related cell of preset requirement.

In the embodiment of the present invention, this equipment also comprises: sending module 13, for information relevant to small area for the related cell not meeting preset requirement in joint detection results to other is sent to this community, and the information relevant to self received by the soft merging in this community.

Described acquisition module 11, also for again estimating the signal-to-jamming ratio SIR of UE, according to the comparative result of the sir target value that the SIR again estimated and open sea wharf configure, obtains power control command word;

Described sending module 13, also for the power control command word obtained is sent to UE.

Described acquisition module 11, is further used for the SIR again being estimated UE by following formula:

$\mathrm{SIR}=\frac{{(\underset{n}{\mathrm{\&Sigma;}}{A}_n\&CenterDot;F_n)}^2}{\underset{n}{\mathrm{\&Sigma;}}{F}_n^2\&CenterDot;{\mathrm{\&sigma;}}_n^2};$

Wherein, for the uplink receiving signal of UE, A _nrepresent the reception amplitude estimation value on the n of community, the variance of the interference noise that Shi community n measures, F _nrepresent the multiplication factor merged.

When UE all activates in multiple minizone; Described sending module 13, also for by sending SS command word to UE, requiring that UE sends the time point of data or delayed transmission data or maintenance transmission data in advance, to adjust the uplink synchronous of UE, ensureing the multiple impulse response positions not exit window of UE in multiple community.

Described sending module 13, if be further used for and then: work as Peak _max>Peak _targettime, require that UE sends data in advance by sending SS command word to UE; Work as Peak _max<Peak _targettime, require the delayed transmission data of UE by sending SS command word to UE; Or,

If $\underset{n=0}{\overset{N}{\mathrm{Max}}}\left(\mathrm{Peak}\left(n\right)\right)>16-P_{\mathrm{bound}},$ And $\underset{n=0}{\overset{N}{\mathrm{Min}}}\left(\mathrm{Peak}\left(n\right)\right)>P_{\mathrm{bound}},$ Then: require that UE sends data in advance by sending SS command word to UE; Or,

If $\underset{n=0}{\overset{M}{\mathrm{Max}}}\left(\mathrm{Peak}\left(n\right)\right)<16-P_{\mathrm{bound}},$ And $\underset{n=0}{\overset{N}{\mathrm{Min}}}\left(\mathrm{Peak}\left(n\right)\right)<P_{\mathrm{bound}},$ Then: require the delayed transmission data of UE by sending SS command word to UE; Or,

If $\underset{n=0}{\overset{N}{\mathrm{Max}}}\left(\mathrm{Peak}\left(n\right)\right)>16-P_{\mathrm{bound}},$ And $\underset{n=0}{\overset{N}{\mathrm{Min}}}\left(\mathrm{Peak}\left(n\right)\right)<P_{\mathrm{bound}},$ Then: require that UE keeps sending the time point of data by sending SS command word to UE;

Wherein, the peak in Peak (n) ShiUE community n, P _boundthe reserved protection width on estimating window both sides, Peak _maxthe position at the peak value place that in multiple cell impulse response, power is the highest, Peak _targetit is peak value target location.

Wherein, the modules of apparatus of the present invention can be integrated in one, and also can be separated deployment.Above-mentioned module can merge into a module, also can split into multiple submodule further.

Embodiment three

Based on the inventive concept same with said method, additionally provide a kind of equipment of multi-cell joint detection in the embodiment of the present invention, as shown in Figure 9, this equipment comprises:

Detection module 21, for related cell to carrying out joint-detection;

Sending module 22, for sending to other communities described, the information relevant to self received by the soft merging in other communities described by information relevant to other communities in joint detection results.

Described sending module 22, specifically for again estimating the signal-to-jamming ratio SIR of UE, and the comparative result of the sir target value configured according to the SIR again estimated and open sea wharf, obtain power control command word, and send to UE.

Described sending module 22, is further used for the SIR again being estimated UE by following formula:

$\mathrm{SIR}=\frac{{(\underset{n}{\mathrm{\&Sigma;}}{A}_n\&CenterDot;F_n)}^2}{\underset{n}{\mathrm{\&Sigma;}}{F}_n^2\&CenterDot;{\mathrm{\&sigma;}}_n^2};$

Wherein, for the uplink receiving signal of UE, A _nrepresent the reception amplitude estimation value on the n of community, the variance of the interference noise that Shi community n measures, F _nrepresent the multiplication factor merged.

Wherein, the modules of apparatus of the present invention can be integrated in one, and also can be separated deployment.Above-mentioned module can merge into a module, also can split into multiple submodule further.

Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform method described in each embodiment of the present invention.

It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.

It will be appreciated by those skilled in the art that the module in the device in embodiment can carry out being distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices being different from the present embodiment.The module of above-described embodiment can merge into a module, also can split into multiple submodule further.

The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.

Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.

Claims (26)

1. a method for multi-cell joint detection, is characterized in that, comprising:

Network equipment obtains the correlation information between neighbor cell, and obtains the related cell pair that correlation meets preset requirement;

Described network equipment utilizes double small district joint-detection mode described correlation to be met to the related cell of preset requirement to carrying out joint-detection;

Wherein, described network equipment obtains the relevant information between neighbor cell, comprising:

Described network equipment utilizes the correlation information between the user equipment (UE) quantity that channel impulse response activates in the other side community respectively of adjacent Liang Ge community and mean value acquisition neighbor cell; Wherein, the UE of the adjacent Liang Ge community quantity that channel impulse response activates in the other side community respectively and mean value larger, the right correlation in the related cell that Ze Gailiangge community forms is stronger.

2. the method for claim 1, is characterized in that, the UE quantity that channel impulse response activates in the other side community respectively of described adjacent Liang Ge community and mean value, comprising: the quantity of overlapping covered interior the activated UE in minizone of this Liang Ge community.

3. the method for claim 1, is characterized in that, described network equipment utilizes double small district joint-detection mode described correlation to be met to the related cell of preset requirement to carrying out joint-detection, comprising:

Described network equipment utilizes transmission bandwidth information and deferred message described correlation to be met the related cell of preset requirement to being configured on corresponding baseband processing unit BBU hardware processing resources, and utilizes double small district joint-detection mode to meet the related cell of preset requirement to carrying out joint-detection to described correlation by described BBU hardware processing resources.

4. method as claimed in claim 3, is characterized in that, described network equipment utilizes transmission bandwidth information and deferred message described correlation to be met the related cell of preset requirement to being configured on corresponding BBU hardware processing resources, comprising:

When the related cell that described correlation meets preset requirement is to a related cell pair the strongest for correlation, described network equipment is maximum and postpone on minimum BBU hardware processing resources to being configured to mutual transmission bandwidth by the strongest for this correlation related cell.

5. the method as described in claim 1 or 3, is characterized in that, described network equipment utilizes double small district joint-detection mode described correlation to be met to the related cell of preset requirement to carrying out joint-detection, comprises further:

Described network equipment obtains the inphase quadrature IQ circuit-switched data that described correlation meets the internal Liang Ge community, related cell of preset requirement, decompose from the initial data of IQ circuit-switched data receiving terminal and receive data, and utilize least mean-square error MMSE algorithm to obtain described correlation to meet the right joint detection results in the related cell of preset requirement.

6. the method as described in claim 1 or 3, is characterized in that, described network equipment utilizes double small district joint-detection mode described correlation to be met to the related cell of preset requirement to carrying out joint-detection, comprises further afterwards:

Information relevant to small area for the related cell not meeting preset requirement in joint detection results to other is sent to this community by described network equipment, the information relevant to self received by the soft merging in this community.

7. method as claimed in claim 6, it is characterized in that, after the information relevant to self that the soft merging in this community receives, described method comprises further:

Described network equipment estimates the signal-to-jamming ratio SIR of UE again, and the comparative result of the sir target value configured according to the SIR again estimated and open sea wharf, obtain power control command word, and send to UE.

8. method as claimed in claim 7, it is characterized in that, described network equipment estimates the SIR of UE again, specifically comprises:

Described network equipment estimates the SIR of UE again by following formula:

Wherein, for the uplink receiving signal of UE, A _nrepresent the reception amplitude estimation value on the n of community, the variance of the interference noise that Shi community n measures, F _nrepresent the multiplication factor merged.

9. the method for claim 1, is characterized in that, when UE all activates in multiple minizone, described method comprises further:

Described network equipment, by sending SS command word to UE, requires that UE sends the time point of data or delayed transmission data or maintenance transmission data in advance, to adjust the uplink synchronous of UE, and ensures the multiple impulse response positions not exit window of UE in multiple community.

10. method as claimed in claim 9, is characterized in that, described network equipment, by sending SS command word to UE, requires that UE sends the time point of data or delayed transmission data or maintenance transmission data in advance, specifically comprises:

If and then: work as Peak _max>Peak _targettime, by sending SS command word to UE, described network equipment requires that UE sends data in advance; Work as Peak _max<Peak _targettime, described network equipment requires the delayed transmission data of UE by sending SS command word to UE; Or,

If and then: by sending SS command word to UE, described network equipment requires that UE sends data in advance; Or,

If and then: described network equipment requires the delayed transmission data of UE by sending SS command word to UE; Or,

If and then: by sending SS command word to UE, described network equipment requires that UE keeps sending the time point of data;

Wherein, the peak in Peak (n) ShiUE community n, P _boundthe reserved protection width on estimating window both sides, Peak _maxthe position at the peak value place that in multiple cell impulse response, power is the highest, Peak _targetit is peak value target location.

The method of 11. 1 kinds of multi-cell joint detections, is characterized in that, comprising:

Network equipment to related cell to carrying out joint-detection;

Information relevant to other communities in joint detection results is sent to other communities described by described network equipment, the information relevant to self received by the soft merging in other communities described.

12. methods as claimed in claim 11, is characterized in that, after the information relevant to self that the soft merging in other communities described receives, described method comprises further:

Described network equipment estimates the signal-to-jamming ratio SIR of UE again, and the comparative result of the sir target value configured according to the SIR again estimated and open sea wharf, obtain power control command word, and send to UE.

13. methods as claimed in claim 12, it is characterized in that, described network equipment estimates the SIR of UE again, specifically comprises:

Described network equipment estimates the SIR of UE again by following formula:

Wherein, for the uplink receiving signal of UE, A _nrepresent the reception amplitude estimation value on the n of community, the variance of the interference noise that Shi community n measures, F _nrepresent the multiplication factor merged.

The equipment of 14. 1 kinds of multi-cell joint detections, is characterized in that, comprising:

Acquisition module, for obtaining the correlation information between neighbor cell, and obtains the related cell pair that correlation meets preset requirement;

Detection module, meets the related cell of preset requirement to carrying out joint-detection for utilizing double small district joint-detection mode to described correlation;

Wherein, described acquisition module, specifically for utilizing the correlation information between the user equipment (UE) quantity that channel impulse response activates in the other side community respectively of adjacent Liang Ge community and mean value acquisition neighbor cell; Wherein, the UE of the adjacent Liang Ge community quantity that channel impulse response activates in the other side community respectively and mean value larger, the right correlation in the related cell that Ze Gailiangge community forms is stronger.

15. equipment as claimed in claim 14, is characterized in that, the UE quantity that channel impulse response activates in the other side community respectively of described adjacent Liang Ge community and mean value, comprising: the quantity of overlapping covered interior the activated UE in minizone of this Liang Ge community.

16. equipment as claimed in claim 14, is characterized in that,

Described detection module, specifically for utilizing transmission bandwidth information and deferred message that described correlation is met the related cell of preset requirement to being configured on corresponding baseband processing unit BBU hardware processing resources, and double small district joint-detection mode is utilized to meet the related cell of preset requirement to carrying out joint-detection to described correlation by described BBU hardware processing resources.

17. equipment as claimed in claim 16, is characterized in that,

Described detection module, when the related cell being further used for meeting preset requirement in described correlation is to a related cell pair the strongest for correlation, the strongest for this correlation related cell is maximum and postpone on minimum BBU hardware processing resources to being configured to mutual transmission bandwidth.

18. equipment as described in claim 14 or 16, is characterized in that,

Described detection module, be further used for obtaining the inphase quadrature IQ circuit-switched data that described correlation meets the internal Liang Ge community, related cell of preset requirement, decompose from the initial data of IQ circuit-switched data receiving terminal and receive data, and utilize least mean-square error MMSE algorithm to obtain described correlation to meet the right joint detection results in the related cell of preset requirement.

19. equipment as described in claim 14 or 16, is characterized in that, also comprise:

Sending module, for information relevant to small area for the related cell not meeting preset requirement in joint detection results to other is sent to this community, the information relevant to self received by the soft merging in this community.

20. equipment as claimed in claim 19, is characterized in that,

Described acquisition module, also for again estimating the signal-to-jamming ratio SIR of UE, and the comparative result of the sir target value configured according to the SIR again estimated and open sea wharf, obtain power control command word;

Described sending module, also for the power control command word obtained is sent to UE.

21. equipment as claimed in claim 20, is characterized in that,

Described acquisition module, is further used for the SIR again being estimated UE by following formula:

Wherein, for the uplink receiving signal of UE, A _nrepresent the reception amplitude estimation value on the n of community, the variance of the interference noise that Shi community n measures, F _nrepresent the multiplication factor merged.

22. equipment as claimed in claim 19, is characterized in that, when UE all activates in multiple minizone;

Described sending module, also for by sending SS command word to UE, requiring that UE sends the time point of data or delayed transmission data or maintenance transmission data in advance, to adjust the uplink synchronous of UE, and ensureing the multiple impulse response positions not exit window of UE in multiple community.

23. equipment as claimed in claim 22, is characterized in that,

Described sending module, if be further used for and then: work as Peak _max>Peak _targettime, require that UE sends data in advance by sending SS command word to UE; Work as Peak _max<Peak _targettime, require the delayed transmission data of UE by sending SS command word to UE; Or,

If and then: require that UE sends data in advance by sending SS command word to UE; Or,

If and then: require the delayed transmission data of UE by sending SS command word to UE; Or,

If and then: require that UE keeps sending the time point of data by sending SS command word to UE;

Wherein, the peak in Peak (n) ShiUE community n, P _boundthe reserved protection width on estimating window both sides, Peak _maxthe position at the peak value place that in multiple cell impulse response, power is the highest, Peak _targetit is peak value target location.

The equipment of 24. 1 kinds of multi-cell joint detections, is characterized in that, comprising:

Detection module, for related cell to carrying out joint-detection;

Sending module, for sending to other communities described, the information relevant to self received by the soft merging in other communities described by information relevant to other communities in joint detection results.

25. equipment as claimed in claim 24, is characterized in that,

Described sending module, specifically for again estimating the signal-to-jamming ratio SIR of UE, and the comparative result of the sir target value configured according to the SIR again estimated and open sea wharf, obtain power control command word, and send to UE.

26. equipment as claimed in claim 25, is characterized in that,

Described sending module, is further used for the SIR again being estimated UE by following formula:

Wherein, for the uplink receiving signal of UE, A _nrepresent the reception amplitude estimation value on the n of community, the variance of the interference noise that Shi community n measures, F _nrepresent the multiplication factor merged.