CN103686762A - WCDMA system cell coverage evaluation method and device - Google Patents

Abstract

The invention discloses a WCDMA system cell coverage evaluation method and device, and relates to the field of wireless communication. By the adoption of the WCDMA system cell coverage evaluation method and device, more cell coverage evaluation results can be provided based on existing weak coverage evaluation, and an effective reference is provided for site layout and network configuration. The method mainly includes the steps that all MRs reported by terminals in a cell are required, wherein the MRs include signal strength of a plurality of pilot signals detected by the terminals; redundancy converge of the cell and the supplement coverage situation of cells adjacent to the cell are evaluated according to the signal strength of the multiple pilot signals included in the MRs. The WCDMA system cell coverage evaluation method and device are mainly used in the process of evaluating the wireless signal coverage situation of the cells.

Description

A kind of WCDMA system cell coverage evaluating method and device

Technical field

The present invention relates to wireless communication field, relate in particular to a kind of Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA) system cell coverage evaluating method and device.

Background technology

In wireless communication field, at the networking initial stage, because the website of WCDMA wireless network is limited, it covers inadequate resource, and weak covering is this stage subject matter.Therefore, for the ease of operator, analyze network coverage situation, whether the community coverage evaluating method that prior art provides is that launch weak coverage cell for community.

Conventional community coverage evaluating method is for analyzing by fixed test or measurement report (Measure Report, MR), from whether the weak angle analysis community covering covers whether reach communication quality requirement.A MR can comprise the measurement result of the detected a plurality of pilot signals of UE in community, if the signal strength signal intensity of a plurality of pilot signals, all lower than default thresholding, or only has a pilot signal to reach default thresholding.Like this, in comprehensive Yi Ge community, all effective MR add up, and judge whether this community exists weak covering problem.

But along with network sustainable development, wireless network stations progressively increases, cover resource progressively sufficient, the problem that the wireless network stations of operator sets up required care has been not only weak covering problem.In recent years data service rapid growth, WCDMA network load is increasing, and the resources such as power blindly expand, and site resource blindly supplements, and causes netting the problems such as interior interference, community redundant cover and becomes increasingly conspicuous.

Visible, only from weak angle of coverage, evaluate coverage condition, lack covering problem is comprehensively analyzed, existing scheme is difficult to effective location, deals with problems.On the one hand, regional area, owing to stopping or inadequate resource, causes covering thin; On the other hand, hot zones station spacing is constantly dwindled, and redundant cover obviously increases.Traffic carrying capacity sharp increase simultaneously, multicarrier are introduced, and cause network dynamic and region to become clear day by day, and how reasonable analysis subzone network coverage condition is the important step of network management and investment to take reasonable measure.

Therefore, need a kind of subzone network that considers many factors badly and cover reasonable evaluation method and device, to instruct network management personnel to carry out efficiently in order network configuration, add network coverage resource etc., and be unlikely to the difficult situation that causes underutilization of resources and the wasting of resources to coexist.

Summary of the invention

Embodiments of the invention provide a kind of WCDMA system cell coverage evaluating method and device, can on the basis of existing weak coverage evaluating, provide more community coverage evaluating result, for website layout and network configuration provide effective reference.

For achieving the above object, embodiments of the invention adopt following technical scheme:

A WCDMA system cell coverage evaluating method, comprising:

Obtain whole measurement report MR of each terminal to report in community, in wherein said MR, comprise the signal strength signal intensity of a plurality of pilot signals that terminal detects;

According to the signal strength signal intensity of the described a plurality of pilot signals that comprise in described MR, assess the redundant cover situation of described community.

A WCDMA system cell coverage evaluating device, comprising:

Acquiring unit, for obtaining whole measurement report MR of each terminal to report in community, comprises the signal strength signal intensity of a plurality of pilot signals that terminal detects in wherein said MR;

Redundant cover assessment unit, the signal strength signal intensity of the described a plurality of pilot signals that comprise for the MR obtaining according to described acquiring unit, assesses the redundant cover situation of described community.

WCDMA system cell coverage evaluating method and device that the embodiment of the present invention provides, by obtaining whole measurement report MR of each terminal to report in community, and the signal strength signal intensity of a plurality of pilot signals that detect according to the terminal comprising in MR, the redundant cover situation of assessment community, compare with the technology that the weak coverage condition of prior art Zhong Jindui community is assessed, can be according to the pilot signal quality of the actual detection of terminal, the effective pilot tone that analyzes current area is too much, or there are a plurality of adjacent pilot frequencies Serving cell pilot tone to be caused to the redundant cover situation of interference, thereby can on the basis of existing weak coverage evaluating, provide more community coverage evaluating result, using and avoid website layout too intensive or as the parameter configuration foundation of adjacent sites, for website layout and network configuration provide effective reference.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is a kind of WCDMA system cell coverage evaluating method flow diagram in the embodiment of the present invention 1;

Fig. 2 is a kind of WCDMA system cell coverage evaluating method flow diagram in the embodiment of the present invention 2;

Fig. 3 is a kind of WCDMA system cell coverage evaluating installation composition schematic diagram in the embodiment of the present invention 3.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment 1

The embodiment of the present invention provides a kind of WCDMA system cell coverage evaluating method, as shown in Figure 1, comprising:

101, obtain whole MR of each terminal to report in community, in wherein said MR, comprise the signal strength signal intensity of a plurality of pilot signals that terminal detects.

Wherein, each terminal, when meeting measurement report condition, can send measurement report to radio network controller (Radio Network Controller, RNC).In MR, can comprise the detected pilot signal quantity of terminal, and the signal strength signal intensity of each pilot signal etc.

102,, according to the signal strength signal intensity of the described a plurality of pilot signals that comprise in described MR, assess the redundant cover situation of described community.

Wherein, the redundant cover assessment of scenario of community can be comprised the covering redundancy of community is assessed, also can comprise the pilot pollution situation of community is assessed.In actual applications, can select a kind of in above-mentioned two kinds of redundant cover assessment of scenario, can two kinds all adopt yet and obtain comprehensive redundant cover assessment of scenario result, the embodiment of the present invention does not limit this.

The WCDMA system cell coverage evaluating method that the embodiment of the present invention provides, by obtaining whole measurement report MR of each terminal to report in community, and the signal strength signal intensity of a plurality of pilot signals that detect according to the terminal comprising in MR, the redundant cover situation of assessment community, compare with the technology that the weak coverage condition of prior art Zhong Jindui community is assessed, can be according to the pilot signal quality of the actual detection of terminal, the effective pilot tone that analyzes current area is too much, or there are a plurality of adjacent pilot frequencies Serving cell pilot tone to be caused to the redundant cover situation of interference, thereby can on the basis of existing weak coverage evaluating, provide more community coverage evaluating result, using and avoid website layout too intensive or as the parameter configuration foundation of adjacent sites, for website layout and network configuration provide effective reference.

Embodiment 2

The embodiment of the present invention provides a kind of WCDMA system cell coverage evaluating method, as shown in Figure 2, comprising:

201, extract community to be assessed as all MR records of Serving cell, and reject extraneous data, obtain whole MR of each terminal to report of described community.

Wherein, RNC can store its each community of administering in the MR record of each terminal to report, what for the present embodiment, will use is that community to be assessed is as all MR records of Serving cell.In these MR record, also may there are blank or the incomplete report of data etc., or in a MR, not only comprise the signal strength signal intensity of each pilot tone that terminal detects, also comprise other items of information such as signal to noise ratio and cell scrambling.In order to improve the accuracy of assessment result, and reduce the unnecessary statistics load of evaluation process, can reject invalid record and outlier, only retain the parameter relevant to community coverage evaluating.

For example, after preliminary treatment, data comprise upper each pilot signal strength of every MR, and complete or collected works are recorded as

{R _i,cell(j)}，i=1,…,M，j=1,…,N， （1）

In formula (1), M and N are positive integer, and M represents in MR complete or collected works MR number altogether, and N represents the different districts sum detecting in MR complete or collected works, cell (i) number order only need with system in cell number be consistent.The MR of community to be assessed records form can be with reference to following table 1.

Table 1

In table 1, the sequence number that MR_ID is MR, the row that MR_ID is identical belongs to same MR, and every a line represents the testing result of a pilot signal in a bar MR.CELLSERIAL is the sequence number of pilot tone in wall scroll MR.CPICH_CELLID is cell id, and CPICH_PSC is scrambler, and CPICH_ECNO is signal to noise ratio, and CPICH_RSCP is signal strength signal intensity.

202,, according to the signal strength signal intensity of the pilot signal comprising in wall scroll MR, judge whether described wall scroll MR is the weak point that covers; Wherein, if strong waveguide frequency signal intensity, lower than weak covering thresholding, judges that described wall scroll MR is as weak covering point in described wall scroll MR.

Concrete, first a plurality of pilot signals in every MR being carried out to pilot frequency intensity sequence from high to low according to signal strength signal intensity, sortord, can be with reference to following table 2 to the result after every MR sequence as formula (2).

R _i,top(k)，i=1,…,M，k=1,…,K， （2）

In formula (2), k=1 ..., K is pilot signal strength sequence, and because Active Set and monitoring collection size limit to some extent, the pilot number comprising in wall scroll MR is limited, and K is pilot signal quantity sum in two set.R _{i, top (k)}representative signal strength signal intensity in i bar MR is arranged the signal strength signal intensity of the pilot signal of k.

Table 2

Wherein, table 2 is for every result that MR carries out signal strength signal intensity rearrangement in Yi Ge community.Every a line represents all intensity of pilot signal sequences in a MR, and mr_id is MR sequence number,

RSCP_CELLID_32101 represents the cell ID of assessed community, and TOTALRSCP represents average signal strength, and RSCP_1 is to the arrangement from high to low of RSCP_4 representation signal intensity.

Then, the rank results of associative list 2, extracts every MR signal that above signal strength signal intensity is the strongest as the first pilot strength signal, and the pilot signal that obtains extracting is as following formula (3), so that subsequent step 203 is used.

B _i=R _i,top(1)，i=1,…,M （3）

In formula (3), R _{i, top (1)}representative signal strength signal intensity in i bar MR is arranged the 1st pilot signal strength.

203, the weak number that covers point in the MR of each terminal to report in described community, divided by the MR number that participates in adding up, is obtained to the weak coating ratio in community.

Wherein, below can calculation plot weak coating ratio, sets the weak thresholding α dBm that covers, and weak covering sampled point ratio is η _{rscp≤α dBm}, algorithm is as formula (4):

${\mathrm{\η}}_{\mathrm{rscp}\≤\mathrm{\αdBm}}=\frac{1}{M}\underset{i=1}{\overset{M}{\mathrm{\Σ}}}\frac{1}{2}(\mathrm{sign}(\mathrm{\α}-B_i)+1)\×100\%---\left(4\right)$

In formula (4), sign () is sign function, and representative gets 1 when value is for positive number in bracket, when value is for negative or 0 in bracket, gets-1.For example, establish α=-100dBm, in the weak sampled point ratio η that covers of formula (4) statistics _{rscp≤α dBm}=15.5%.

204,, according to the signal strength signal intensity of the pilot signal comprising in wall scroll MR, add up signal strength signal intensity in described wall scroll MR and, higher than the pilot number of useful signal thresholding β, obtain the redundancy of wall scroll MR.

Wherein, formula (2) provides each MR pilot frequency intensity sequence, the redundancy of wall scroll MR

be defined as signal strength signal intensity higher than the pilot number of β dBm, wherein β is useful signal thresholding.The redundancy of wall scroll MR

calculating can be with reference to following formula (5).

In formula (5),

represent the redundancy of i bar MR, M participates in the quantity of whole MR of assessment in community.Sign () is sign function, and representative gets 1 when value is for positive number in bracket, when value is for negative or 0 in bracket, gets-1.β is useful signal thresholding, and in i bar MR, each pilot signal is judged to determine

be worth, so can calculate the redundancy of every MR.

205, according to the redundancy of described wall scroll MR, calculate the redundancy mean value of the MR of each terminal to report in described community, obtain the covering redundancy of described community.

Wherein, the algorithm of the covering redundancy Φ of calculation plot can be with reference to following formula (6).

In formula (6), for the redundancy of every MR,

representative is sued for peace to the redundancy of M bar MR, and M is for participating in whole MR numbers of evaluates calculation.For example, establish β=-95dBm, according to formula (5) and (6), the covering redundancy Φ of calculation plot _{cell (k)=P}=1.097.

206,, according to the signal strength signal intensity of the pilot signal comprising in wall scroll MR, judge whether described wall scroll MR is pilot pollution point; Wherein, if in a plurality of pilot signals in described wall scroll MR between signal strength signal intensity and the strongest pilot frequency intensity gap lower than the pilot number a predetermined level is exceeded of interference threshold, judge that described wall scroll MR is as pilot pollution point.

Wherein, pilot pollution covers over-redundancy to be caused, and defines, when the strongest pilot frequency intensity of wall scroll MR surpasses predetermined threshold δ by conventional pilot pollution, and when gap is lower than the pilot number a predetermined level is exceeded of interference threshold between signal strength signal intensity and the strongest pilot frequency intensity, be judged to be pilot pollution point.For example, our hypothesis ought the strongest pilot tone R _{i, top (1)}during>=δ dBm, the pilot number that is not less than the strongest pilot frequency intensity 3dB surpasses 3, thinks pilot pollution point, sees formula (7).

${\mathrm{\&theta;}}_i=\left\{\begin{array}{cc}1,& R_{i,\mathrm{top}\left(5\right)}-R_{i,\mathrm{top}\left(1\right)}\&GreaterEqual;-3\mathrm{dB}\\ 0,& R_{i,\mathrm{top}\left(5\right)}-R_{i,\mathrm{top}\left(1\right)<-3\mathrm{dB}}\end{array}\right.---\left(7\right)$

In formula (7), R _{i, top (1)}the pilot frequency intensity that representation signal intensity is the strongest, it is the intensity level that signal strength signal intensity is arranged the 1st pilot tone, in reference table 2 according to the sequence of pilot frequency intensity, and the decision threshold of above-mentioned pilot pollution is known, the intensity that the condition that meets pilot pollution point at least will have 4 pilot tones and the strongest pilot tone be the poor 3dBm of being not less than only, therefore formula (7) if implication for signal strength signal intensity in i bar MR, arrange the 5th pilot signal strength and be not less than 3dBm with the difference of strong pilot tone, i bar MR is designated as a pilot pollution point, θ _i=1; Otherwise i bar MR is not pilot pollution point, θ _i=0.

207, the MR number divided by participation statistics by the number of pilot pollution point in the MR of each terminal to report in described community, obtains district pilots and pollutes ratio.

Wherein, after judging that each MR is whether as pilot pollution point, just can calculate the ratio of pilot pollution point, the algorithm that concrete district pilots pollutes ratio Θ is shown in formula (8).

${\mathrm{\&Theta;}}_{\mathrm{psc}\left(k\right)=P}=\frac{1}{M}\underset{i=1}{\overset{M}{\mathrm{\&Sigma;}}}{\mathrm{\&theta;}}_i---\left(8\right)$

Wherein,

to being judged to be the MR number summation of pilot pollution point, θ in the whole MR that participate in adding up _ibe whether i bar MR is the sign of pilot pollution point, 1 representative is that 0 representative is not.M is the number that participates in whole MR of statistics.For example, establish δ=-90dBm, according to formula (7) and (8), calculation plot Θ=0.0073%.

208,, according to the signal strength signal intensity of a plurality of pilot signals that comprise in the MR of described terminal to report, according to district pilots intensity, determine the weighted value of single MR.

Wherein, be mainly that assessment adjacent area supplements coverage condition to Serving cell, be called and supplement coverage coefficient ψ _{psc (j)}, being defined as adjacent area in MR complete or collected works, the weighted frequency that effectively pilot signal strength occurs, is shown in formula (10).Suppose that associated weight is Serving cell pilot frequency intensity function, note ω=f (R), supposes that supplementary covering is difficult to promote radio link quality when R> γ.Weighting function f (R) is shown in formula (9).

$f\left(R\right)=\left\{\begin{array}{cc}3& R\&le;\mathrm{\&alpha;}\\ 2& \mathrm{\&alpha;}<R<\mathrm{\&gamma;}\\ 1& \mathrm{\&gamma;}<R\end{array}\right.---\left(9\right)$

In formula (9), the criteria for classifying of weight and the value of weight, for for example, can also be only other criteria for classifying and corresponding weighted value in actual applications, and the present embodiment does not limit this.

209, after signal strength signal intensity is added higher than weighted value corresponding to the adjacent area pilot tone of valid signal strengths thresholding β, the cumulative sum of weighted value divided by whole MR, obtains adjacent area and supplements coverage coefficient.

Wherein, the algorithm of the supplementary coverage coefficient in adjacent area can be with reference to following formula (10).

${\mathrm{\&psi;}}_{\mathrm{psc}\left(j\right)}=\frac{\underset{i=1}{\overset{M}{\mathrm{\&Sigma;}}}f\left(R_{i,\mathrm{psc}\left(j\right)}\right)\frac{1}{2}(\mathrm{sign}(R_{i,\mathrm{psc}\left(j\right)}-\mathrm{\&beta;})+1)}{\underset{i=1}{\overset{M}{\mathrm{\&Sigma;}}}f\left(R_{i,\mathrm{psc}\left(j\right)}\right)}\&times;100\%,j=1,...,N---\left(10\right)$

In formula (10), R _{i, cell (j)}represent the signal strength signal intensity of j adjacent area pilot tone in i bar MR, β is default useful signal thresholding.Sign () is sign function, represents that when value is for positive number in bracket, sign () gets 1, and when in bracket, value is for negative or 0, sign () gets-1.F(R _{i, psc (k)=P}) be the weighted value of j adjacent area pilot tone in i bar MR.

For example, while establishing pilot frequency intensity higher than γ=-90dBm, redundant cover is difficult to promote radio link quality.According to formula (9) and (10), calculate each adjacent area covering contribution coefficient, obtain result of calculation as shown in table 3.

Table 3

210, output community coverage evaluating result.

Wherein, described community coverage evaluating result comprises that the weak coverage condition in community, community cover redundancy, district pilots pollution condition and adjacent area and supplement coverage coefficient distribution etc., and the community coverage evaluating result of output can reflect the actual conditions such as supplementary covering of community service quality, website layout dense degree and adjacent sites more all sidedly.The concrete form of output community coverage evaluating result can be list, block diagram or other graphic forms, and the present embodiment does not limit this.

For example, the weak coating ratio in this community is 15.5%, and community redundancy is only 1.097, and pilot pollution ratio 7.3e-5, illustrates that the weak covering in community is more serious, and periphery can be less by overlapping covering resource; Supplement first three community of coverage coefficient and be respectively 30513,30514,30427, other communities supplement coverage coefficient and sharply decline.Therefore, can join in conjunction with basic data community work, search community and adjacent cell position, according to position, the higher adjacent area of supplementary coverage coefficient, weak overlay area, positioning service community general orientation, adjusts and supplements the lower and close together adjacent area work ginseng of coverage coefficient, or mend station, strengthen and cover redundancy, promote covering quality.

The community coverage evaluating method that the embodiment of the present invention provides, by obtaining whole measurement report MR of each terminal to report in community, and the signal strength signal intensity of a plurality of pilot signals that detect according to the terminal comprising in MR, the redundant cover situation of assessment community, compare with the technology that the weak coverage condition of prior art Zhong Jindui community is assessed, can be according to the pilot signal quality of the actual detection of terminal, the effective pilot tone that analyzes current area is too much, or there are a plurality of adjacent pilot frequencies Serving cell pilot tone to be caused to the redundant cover situation of interference, thereby can on the basis of existing weak coverage evaluating, provide more community coverage evaluating result, using and avoid website layout too intensive or as the parameter configuration foundation of adjacent sites, for website layout and network configuration provide effective reference.

And, by calculating adjacent area, supplement coverage coefficient and weak coating ratio, the influence degree of the pilot signal that can reflect neighbor cell to the quality of service of terminal in current area, and whether current region need to set up website or control the problems such as interference, for website layout and network configuration provide abundanter reference information.

Embodiment 3

The embodiment of the present invention provides a kind of community coverage evaluating device, as shown in Figure 3, comprising:

Acquiring unit 31, for obtaining whole measurement report MR of each terminal to report in community, comprises the signal strength signal intensity of a plurality of pilot signals that terminal detects in wherein said MR;

Redundant cover assessment unit 32, the signal strength signal intensity of the described a plurality of pilot signals that comprise for the MR obtaining according to described acquiring unit 31, assesses the redundant cover situation of described community.

Further, described redundant cover assessment unit 32 comprises redundancy assessment subelement 321;

Described redundancy assessment subelement 321 for:

The signal strength signal intensity of the pilot signal comprising in the wall scroll MR obtaining according to described acquiring unit 31, adds up signal strength signal intensity in described wall scroll MR and, higher than the pilot number of useful signal thresholding β, obtains the redundancy of wall scroll MR;

According to the redundancy of described wall scroll MR, calculate the redundancy mean value of the MR of each terminal to report in described community, obtain the covering redundancy of described community.

Further, described redundant cover unit 32 comprises pilot pollution assessment subelement 322;

Described pilot pollution assessment subelement 322 for:

The signal strength signal intensity of the pilot signal comprising in the wall scroll MR obtaining according to described acquiring unit 31, judges whether described wall scroll MR is pilot pollution point; Wherein, if the strong waveguide frequency signal intensity in described wall scroll MR surpasses thresholding, and in a plurality of pilot signal between signal strength signal intensity and the strongest pilot frequency intensity gap lower than the pilot number a predetermined level is exceeded of interference threshold, judge that described wall scroll MR is as pilot pollution point;

The number of pilot pollution point in the MR of each terminal to report in described community, divided by the MR number that participates in statistics, is obtained to district pilots and pollutes ratio.

Further, this device also comprises: adjacent area supplements coverage evaluating unit 33;

Described adjacent area supplement coverage evaluating unit 33 for:

After described acquiring unit 31 obtains whole measurement report MR of each terminal to report in community, the signal strength signal intensity of a plurality of pilot signals that comprise in the MR of the terminal to report obtaining according to described acquiring unit, determines the weighted value of single MR according to district pilots intensity;

After signal strength signal intensity is cumulative higher than weighted value corresponding to the adjacent area pilot tone of valid signal strengths thresholding β, the cumulative sum of weighted value divided by whole MR, obtains adjacent area and supplements coverage coefficient.

Further, this device also comprises weak coverage evaluating unit 34;

Described weak coverage evaluating unit 34 for:

After described acquiring unit 31 obtains whole measurement report MR of each terminal to report in community, the signal strength signal intensity of the strong waveguide frequency signal comprising in the wall scroll MR obtaining according to described acquiring unit, judges whether described wall scroll MR is the weak point that covers; Wherein, if strong waveguide frequency signal intensity, lower than certain thresholding, judges that described wall scroll MR is as weak covering point in described wall scroll MR;

The weak number that covers point in the MR of each terminal to report in described community, divided by the MR number that participates in statistics, is obtained to the weak coating ratio in community.

Further, described acquiring unit 31 also for:

Extract described community as all MR records of Serving cell, and reject invalid and extraneous data, obtain whole MR of each terminal to report of described community.

The community coverage evaluating device that the embodiment of the present invention provides, by obtaining whole measurement report MR of each terminal to report in community, and the signal strength signal intensity of a plurality of pilot signals that detect according to the terminal comprising in MR, the redundant cover situation of assessment community, compare with the technology that the weak coverage condition of prior art Zhong Jindui community is assessed, can be according to the pilot signal quality of the actual detection of terminal, the effective pilot tone that analyzes current area is too much, or there are a plurality of adjacent pilot frequencies Serving cell pilot tone to be caused to the redundant cover situation of interference, thereby can on the basis of existing weak coverage evaluating, provide more community coverage evaluating result, using and avoid website layout too intensive or as the parameter configuration foundation of adjacent sites, for website layout and network configuration provide effective reference.

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 essential common hardware by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium can read, as the floppy disk of computer, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims (12)

1. a Wideband Code Division Multiple Access (WCDMA) WCDMA system cell coverage evaluating method, is characterized in that, comprising:

Obtain whole measurement report MR of each terminal to report in community, in wherein said MR, comprise the signal strength signal intensity of a plurality of pilot signals that terminal detects;

According to the signal strength signal intensity of the described a plurality of pilot signals that comprise in described MR, assess the redundant cover situation of described community.

2. community according to claim 1 coverage evaluating method, is characterized in that, described according to the signal strength signal intensity of the described a plurality of pilot signals that comprise in described MR, assesses the redundant cover situation of described community, comprising:

According to the signal strength signal intensity of the pilot signal comprising in wall scroll MR, add up signal strength signal intensity in described wall scroll MR and, higher than the pilot number of useful signal thresholding β, obtain the redundancy of wall scroll MR;

According to the redundancy of described wall scroll MR, calculate the redundancy mean value of the MR of each terminal to report in described community, obtain the covering redundancy of described community.

3. community according to claim 1 coverage evaluating method, is characterized in that, described according to the signal strength signal intensity of the described a plurality of pilot signals that comprise in described MR, assesses the redundant cover situation of described community, comprising:

According to the signal strength signal intensity of the pilot signal comprising in wall scroll MR, judge whether described wall scroll MR is pilot pollution point; Wherein, if meet following two conditions in described wall scroll MR, judge that described wall scroll MR is as pilot pollution point: the first, the strongest pilot tone surpasses predetermined threshold δ, the second, in described wall scroll MR between signal strength signal intensity and the strongest pilot frequency intensity gap lower than the pilot number a predetermined level is exceeded of interference threshold;

The number of pilot pollution point in the MR of each terminal to report in described community, divided by the MR number that participates in statistics, is obtained to district pilots and pollutes ratio.

4. community according to claim 1 coverage evaluating method, is characterized in that, in obtaining community, after whole measurement report MR of each terminal to report, described method also comprises:

According to the signal strength signal intensity of a plurality of pilot signals that comprise in the MR of described terminal to report, according to described district pilots intensity, determine the weighted value of wall scroll MR;

After signal strength signal intensity is cumulative higher than weighted value corresponding to the adjacent area pilot tone of valid signal strengths thresholding β, the cumulative sum of weighted value divided by whole MR, obtains adjacent area and supplements coverage coefficient.

5. community according to claim 1 coverage evaluating method, is characterized in that, in obtaining community, after whole measurement report MR of each terminal to report, described method also comprises:

According to the signal strength signal intensity of the pilot signal comprising in wall scroll MR, judge whether described wall scroll MR is the weak point that covers; Wherein, if signal strength signal intensity is lower than weak covering signalc threshold in described wall scroll MR, judge that described wall scroll MR is as weak covering point;

The weak number that covers point in the MR of each terminal to report in described community, divided by the MR number that participates in statistics, is obtained to the weak coating ratio in community.

6. according to the community coverage evaluating method described in any one in claim 1-5, it is characterized in that, described in obtain whole measurement report MR of each terminal to report in community, comprising:

Extract described community as all MR records of Serving cell, and reject invalid and extraneous data, obtain whole MR of each terminal to report of described community.

7. a Wideband Code Division Multiple Access (WCDMA) WCDMA system cell coverage evaluating device, is characterized in that, comprising:

Acquiring unit, for obtaining whole measurement report MR of each terminal to report in community, comprises the signal strength signal intensity of a plurality of pilot signals that terminal detects in wherein said MR;

Redundant cover assessment unit, the signal strength signal intensity of the described a plurality of pilot signals that comprise for the MR obtaining according to described acquiring unit, assesses the redundant cover situation of described community.

8. community according to claim 7 coverage evaluating device, is characterized in that, described redundant cover assessment unit comprises redundancy assessment subelement;

Described redundancy assessment subelement is used for:

The signal strength signal intensity of the pilot signal comprising in the wall scroll MR obtaining according to described acquiring unit, adds up signal strength signal intensity in described wall scroll MR and, higher than the pilot number of useful signal thresholding β, obtains the redundancy of wall scroll MR;

According to the redundancy of described wall scroll MR, calculate the redundancy mean value of the MR of each terminal to report in described community, obtain the covering redundancy of described community.

9. community according to claim 7 coverage evaluating device, is characterized in that, described redundant cover assessment unit comprises pilot pollution assessment subelement;

Described pilot pollution assessment subelement is used for:

The signal strength signal intensity of the pilot signal comprising in the wall scroll MR obtaining according to described acquiring unit, judges whether described wall scroll MR is pilot pollution point; Wherein, if described wall scroll MR meets following two conditions, judge that described wall scroll MR is as pilot pollution point: the first, the strongest pilot tone surpasses thresholding δ, the second, in a plurality of pilot signals between signal strength signal intensity and the strongest pilot frequency intensity gap lower than the pilot number a predetermined level is exceeded of interference threshold;

The number of pilot pollution point in the MR of each terminal to report in described community, divided by the MR number that participates in statistics, is obtained to district pilots and pollutes ratio.

10. community according to claim 7 coverage evaluating device, is characterized in that, also comprises: adjacent area supplements coverage evaluating unit;

Described adjacent area supplements coverage evaluating unit and is used for:

According to the signal strength signal intensity of a plurality of pilot signals that comprise in the MR of described terminal to report, according to described district pilots intensity, determine the weighted value of wall scroll MR;

After signal strength signal intensity is cumulative higher than weighted value corresponding to the adjacent area pilot tone of valid signal strengths thresholding β, the cumulative sum of weighted value divided by whole MR, obtains adjacent area and supplements coverage coefficient.

11. community according to claim 7 coverage evaluating devices, is characterized in that, also comprise weak coverage evaluating unit;

Described weak coverage evaluating unit is used for:

After described acquiring unit obtains whole measurement report MR of each terminal to report in community, the signal strength signal intensity of strong waveguide frequency signal in the wall scroll MR obtaining according to described acquiring unit, judges whether described wall scroll MR is the weak point that covers; Wherein, if strong waveguide frequency signal intensity, lower than useful signal thresholding, judges that described wall scroll MR is as weak covering point in described wall scroll MR;

The weak number that covers point in the MR of each terminal to report in described community, divided by the MR number that participates in statistics, is obtained to the weak coating ratio in community.

12. according to the community coverage evaluating device described in any one in claim 7-11, it is characterized in that, described acquiring unit also for:

Extract described community as all MR records of Serving cell, and reject invalid and extraneous data, obtain whole MR of each terminal to report of described community.

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