CN101247612B - Video telephone traffic prediction method and capacity scale estimation method - Google Patents

Abstract

The invention discloses a prediction method for visual telephone traffic and an estimation method for a capacity scale. The prediction method for visual telephone traffic includes the following steps: S202, a planning area is divided into at least one area according to a wireless propagation mode and a transaction characteristic; S204, voice traffic in each divided area is respectively counted; and S206, the visual telephone traffic in each area is counted under the condition of inducing a visual telephone transaction. The counted traffic and the counted capacity scale can be pressed close to an actual condition and user behavior through the invention, and a capacity requirement is avoid to being highly valued in some areas, therefore, a network creation scale is reduced, network creation cost is decreased.

Description

Video telephone traffic evaluation method and capacity scale estimation method

Technical field

The present invention relates to the communications field, relate more specifically to a kind of video telephone traffic evaluation method and a kind of capacity scale estimation method.

Background technology

As everyone knows,, not only directly have influence on the capacity scale estimation of base station as the traffic modeling of the miscellaneous service in the 3G wireless network planning, and determined the scale of investment of engineering construction and be constructed and put into operation after economic benefit.One of 3G system most important character can provide flexibly for the user exactly, polytype business widely, at circuit domain (CS), traditional speech business arranged not only, also has characteristic service-video telephone of 3G; And packet domain (PS) has more provided miscellaneous data service.Before how at home 3G does not open as yet, make up scientific and rational business model for these are professional, the emphasis that becomes 3G network planning also is one of difficult point.

Wherein, speech business and middle low-speed data service can provide certain reference by the 2G system, and high-speed data service also can be according to some parameters of the Internet; Visual telephone service is that the 2G system can't provide, really have one of business of 3G characteristic, also is the 3G business that present operator emphasis is promoted mainly, and is the target service that covers continuously.Because 2G does not provide this business,, can't provide the reference of telephone traffic by the 2G existing network data of this area therefore for particular locality.Though there is the operation experience of some video telephone existing networks abroad, also there are certain difference in users at home and abroad custom and operator's operation strategy, reference fully.

Present domestic try net for the modeling flow process of CS as shown in Figure 1.To plan that at first the area is divided into zones of different (dense city, general city, suburb and rural area) according to wireless propagation environment and business characteristic; Set up each regional speech business model then respectively, and visual telephone service is directly according to the certain proportion value of voice telephone traffic amount, this value generally gets 10% during domestic planning; Then calculate the CS telephone traffic in conjunction with this zone prospective users number; Carry out the estimation of field capacity scale at last.There is following problem in such modeling:

Speech business is the basic service of mobile communication, all can use between all kinds of zones, all types of user, and difference only is on the numerical value of telephone traffic; And it is, not only be subjected to the restriction of a lot of user's factors such as terminal type, use habit, and relevant with the operation strategy of operator as the video telephone of 3G characteristic service.Be not all necessarily to introduce video telephone at the All Ranges in planning area, also not all user can use this business.

Video telephone is pressed 10% value of voice telephone traffic, does not have the foundation of theory and practice.And each department, each regional user behavior all there are differences, and all value by a certain percentage is also also improper.

Therefore, need a kind of can according to area feature prediction CS telephone traffic to be planned more can closing to reality modeling method.Because video telephone and speech business all belong to session service, all be used to satisfy the conversation demand, on operating characteristic, has certain similitude, just the former use has been Duoed the factor of some restrictions than the latter, and speech business can be predicted according to present 2G existing network data, therefore, we can predict the traffic model of visual telephone service in conjunction with the actual conditions in planning area, on the basis of speech business traffic model.Thereby provide a kind of method of rational prediction CS business model.

Summary of the invention

In view of above-mentioned one or more problems, the present invention proposes a kind of video telephone traffic evaluation method and a kind of capacity scale estimation method, so that the telephone traffic and the volume calculation in planning area are more reasonable, thereby improve the accuracy of the network planning.

According to an aspect of the present invention, provide a kind of video telephone traffic evaluation method, it may further comprise the steps: S202, will plan that the area is divided at least one zone according to radio transmission model and service feature; S204, each the regional voice telephone traffic amount after statistics is divided respectively; And S206, introduce in the zone under the situation of visual telephone service, add up each regional video telephone traffic.This method can be used for the 3G (Third Generation) Moblie network planning.

Wherein, in step S202, will plan that regional classification is following at least one zone: dense city, general city, suburb and rural area.

Wherein, in step S204, telephone traffic was calculated by following equation when single user of speech business was busy: ${\mathrm{Traffic}}_{\mathrm{voice}}=\frac{{\mathrm{BHCA}}_{\mathrm{voice}}\×\mathrm{CallDurati}{\mathrm{on}}_{\mathrm{voice}}}{3600},$ Wherein, the number of times that BHCA makes a call when being busy, CallDuration continues duration for calling out.

Wherein, step S206 comprises: S2062, and statistics is introduced the existing network high-class terminals ratio factor1 in the zone of visual telephone service; S2064, the existing network travelling carriage of statistical regions is called out the ratio factor2 of travelling carriage; S2066 determines the percept of call completed factor3 in the zone; S2068 determines the restriction factor4 that user behavior is accustomed to; S2070, telephone traffic when hurrying according to following equation calculating visual telephone service list user: ${\mathrm{BHCA}}_{\mathrm{videophone}}={\mathrm{BHCA}}_{\mathrm{voice}}\×\underset{i=1}{\overset{4}{\mathrm{\Π}}}{\mathrm{Factor}}_i,$ CallDuration _videophone＝CallDuration _voice，? ${\mathrm{Traffic}}_{\mathrm{videophone}}=\frac{{\mathrm{BHCA}}_{\mathrm{videophone}}\×\mathrm{CallDurati}{\mathrm{on}}_{\mathrm{videophone}}}{3600};$ And S2072, telephone traffic is calculated the visual telephone service telephone traffic in zone when busy according to the prospective users quantity in the zone and single user.

According to a further aspect in the invention, provide a kind of capacity scale estimation method, it may further comprise the steps: S302, will plan that the area is divided at least one zone according to radio transmission model and service feature; S304, each the regional voice telephone traffic amount after statistics is divided respectively; S306 introduces in the zone under the situation of visual telephone service, adds up each regional video telephone traffic; And S308, according to voice telephone traffic amount and video telephone traffic estimation region capacity scale.This method can be used for the 3G (Third Generation) Moblie network planning.

Wherein, in step S302, will plan that regional classification is following at least one zone: dense city, general city, suburb and rural area.

Wherein, in step S304, telephone traffic was calculated by following equation when single user of speech business was busy: ${\mathrm{Traffic}}_{\mathrm{voice}}=\frac{{\mathrm{BHCA}}_{\mathrm{voice}}\×\mathrm{CallDurati}{\mathrm{on}}_{\mathrm{voice}}}{3600},$ Wherein, the number of times that BHCA makes a call when being busy, CallDuration continues duration for calling out.

Wherein, step S306 comprises: S3062, and statistics is introduced the existing network high-class terminals ratio factor1 in the zone of visual telephone service; S3064, the existing network travelling carriage of statistical regions is called out the ratio factor2 of travelling carriage; S3066 determines the percept of call completed factor3 in the zone; S3068 determines the restriction factor4 that user behavior is accustomed to; S3070, telephone traffic when hurrying according to following equation calculating visual telephone service list user: ${\mathrm{BHCA}}_{\mathrm{videophone}}={\mathrm{BHCA}}_{\mathrm{voice}}\×\underset{i=1}{\overset{4}{\mathrm{\Π}}}{\mathrm{Factor}}_i,$ CallDuration _videophone＝CallDuration _voice，? ${\mathrm{Traffic}}_{\mathrm{videophone}}=\frac{{\mathrm{BHCA}}_{\mathrm{videophone}}\×\mathrm{CallDurati}{\mathrm{on}}_{\mathrm{videophone}}}{3600};$ And S3072, telephone traffic is calculated the visual telephone service telephone traffic in zone when busy according to the prospective users quantity in the zone and single user.

The present invention is directed to the capacity planning of 3G system initial stage wireless network, provide a kind of method of the CS of estimation telephone traffic, make that the telephone traffic and the volume calculation in planning area are more reasonable, improved the accuracy of the network planning, for science, directive function have reasonably been played in the 3G initial stage network planning.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is existing C S traffic forecast and capacity planning flow chart;

Fig. 2 A is the flow chart according to video telephone traffic prediction method of the present invention;

Fig. 2 B is the particular flow sheet according to the step S206 of video telephone traffic prediction method of the present invention;

Fig. 3 A is the flow chart according to capacity scale estimation method of the present invention;

Fig. 3 B is the particular flow sheet according to the step S306 of capacity scale estimation method of the present invention; And

Fig. 4 is the flow chart according to the embodiment of CS traffic of the present invention modeling and volume calculation.

Embodiment

Below with reference to accompanying drawing, describe in detail according to the specific embodiment of the present invention.

Fig. 2 A shows the flow chart according to video telephone traffic prediction method of the present invention; Fig. 2 B shows the particular flow sheet according to the step S206 of video telephone traffic prediction method of the present invention; Fig. 3 A shows the flow chart according to capacity scale estimation method of the present invention; And Fig. 3 B shows the particular flow sheet according to the step S306 of capacity scale estimation method of the present invention.

Shown in Fig. 2 A, video telephone traffic prediction method according to the present invention may further comprise the steps: S202, to plan that the area is divided at least one zone according to radio transmission model and service feature, wherein, this at least one zone can comprise one or more with in the lower area: dense city, general city, suburb and rural area; S204, each the regional voice telephone traffic amount after statistics is divided respectively; And S206, introduce in the zone under the situation of visual telephone service, add up each regional video telephone traffic.Can be used for the 3G (Third Generation) Moblie network planning according to video telephone traffic prediction method of the present invention.

Wherein, in step S204, telephone traffic was calculated by following equation when single user of speech business was busy: ${\mathrm{Traffic}}_{\mathrm{voice}}=\frac{{\mathrm{BHCA}}_{\mathrm{voice}}\×\mathrm{CallDurati}{\mathrm{on}}_{\mathrm{voice}}}{3600},$ Wherein, the number of times that BHCA makes a call when being busy, CallDuration continues duration for calling out.

Wherein, shown in Fig. 2 B, step S206 comprises: S2062, and statistics is introduced the existing network high-class terminals ratio factor1 in the zone of visual telephone service; S2064, the existing network travelling carriage of statistical regions is called out the ratio factor2 of travelling carriage; S2066 determines the percept of call completed factor3 in the zone; S2068 determines the restriction factor4 that user behavior is accustomed to; S2070, telephone traffic when hurrying according to following equation calculating visual telephone service list user: ${\mathrm{BHCA}}_{\mathrm{videophone}}={\mathrm{BHCA}}_{\mathrm{voice}}\×\underset{i=1}{\overset{4}{\mathrm{\Π}}}{\mathrm{Factor}}_i,$ CallDuration _videophone＝CallDuration _voice，? ${\mathrm{Traffic}}_{\mathrm{videophone}}=\frac{{\mathrm{BHCA}}_{\mathrm{videophone}}\×\mathrm{CallDurati}{\mathrm{on}}_{\mathrm{videophone}}}{3600};$ And S2072, telephone traffic is calculated the visual telephone service telephone traffic in zone when busy according to the prospective users quantity in the zone and single user.

As shown in Figure 3A, capacity scale estimation method according to the present invention may further comprise the steps: S302, to plan that the area is divided at least one zone according to radio transmission model and service feature, wherein, this at least one zone can comprise one or more with in the lower area: dense city, general city, suburb and rural area; S304, each the regional voice telephone traffic amount after statistics is divided respectively; S306 introduces in the zone under the situation of visual telephone service, adds up each regional video telephone traffic; And S308, according to voice telephone traffic amount and video telephone traffic estimation region capacity scale.Can be used for the 3G (Third Generation) Moblie network planning according to capacity scale estimation method of the present invention.

Wherein, in step S304, telephone traffic was calculated by following equation when single user of speech business was busy: ${\mathrm{Traffic}}_{\mathrm{voice}}=\frac{{\mathrm{BHCA}}_{\mathrm{voice}}\×\mathrm{CallDurati}{\mathrm{on}}_{\mathrm{voice}}}{3600},$ Wherein, the number of times that BHCA makes a call when being busy, CallDuration continues duration for calling out.

Wherein, shown in Fig. 3 B, step S306 comprises: S3062, and statistics is introduced the existing network high-class terminals ratio factor1 in the zone of visual telephone service; S3064, the existing network travelling carriage of statistical regions is called out the ratio factor2 of travelling carriage; S3066 determines the percept of call completed factor3 in the zone; S3068 determines the restriction factor4 that user behavior is accustomed to; S3070, telephone traffic when hurrying according to following equation calculating visual telephone service list user:

${\mathrm{BHCA}}_{\mathrm{videophone}}={\mathrm{BHCA}}_{\mathrm{voice}}\×\underset{i=1}{\overset{4}{\mathrm{\Π}}}{\mathrm{Factor}}_i,$ CallDuration _videophone＝CallDuration _voice，? ${\mathrm{Traffic}}_{\mathrm{videophone}}=\frac{{\mathrm{BHCA}}_{\mathrm{videophone}}\×\mathrm{CallDurati}{\mathrm{on}}_{\mathrm{videophone}}}{3600};$ And S3072, telephone traffic is calculated the visual telephone service telephone traffic in zone when busy according to the prospective users quantity in the zone and single user.

Particularly, with reference to shown in Figure 4, illustrate according to CS traffic of the present invention modeling and volume calculation flow process:

S402 is divided into dense city, general city, suburb and rural area with concrete planning area according to radio transmission model and service feature.

S404 for the regional speech data of adding up the 2G existing network respectively of each class planning, comprises the number of times BHCA that makes a call when doing and calls out continuing duration CallDuration, as the speech business model at 3G initial stage.Calculate single user telephone traffic when busy by following equation:

${\mathrm{Traffic}}_{\mathrm{voice}}=\frac{{\mathrm{BHCA}}_{\mathrm{voice}}\×{\mathrm{CallDuration}}_{\mathrm{voice}}}{3600}.$

For example, the existing network voice telephone traffic amount of statistics dense city obtains the number of times BHCA that the every user's mean busy hour of this zone speech business makes a call _Voice=1.2, the time that per call keeps is Call Duration=60s, as the speech business model at 3G initial stage.Telephone traffic when the single user of the speech business that calculates by above-mentioned equation is busy is 1.8*60/3600=0.02erl.

S406 for each class zone, judges whether to introduce visual telephone service according to the operation strategy, if video telephone is introduced in such zone, then carries out step S408 to step S416, otherwise directly arrives step S418.

S408, the ratio of the existing network high-end user in statistical rules area is designated as factor1.As the most basic business, the equal support voice business of portable terminal of high, medium and low shelves.Different therewith, the use of video telephone is subjected to the restriction of mobile terminal style, has only high-end mobile phone just to have video telephone function usually.For example, in dense city, according to the actual conditions of this area, consider that the user of high-end mobile phone mostly is fashion personage and city noble, its ratio that accounts for 3G subscription is about 20%.Like this, when the calling party dialed phone, the probability that the callee has video telephone function equally was 20%, i.e. Factor ₁=0.2.

S410, the statistical rules area is moved and is exhaled mobile probability, is designated as factor2.In voice call, mainly contain following three kinds of situations: fixed line exhale mobile, move exhale fixed line, move exhale mobile.The video telephone popularity rate of present domestic fixed line is 0% substantially, may having only when moving of visual telephone service is taken place like this exhale when mobile.Wherein, moving and exhaling mobile probability is 40%, like this, and Factor ₂=0.4.

S412 according to test result, determines call completing rate factor3.According to the experience of external existing network and domestic try net, the call completing rate of video telephone is lower than speech business.Generally speaking, the video telephone call completing rate is 60%, like this, and Factor ₃=0.6.

S414 determines the restriction of user behavior custom, is designated as factor4.The use of visual telephone service is when normally the calling party is in the relative fixed position.Usually, people's behavior state has only fixing and moves two kinds, and might as well establish the probability that the calling party is in fixed-site is 50%; And the probability of dialing video telephone that will stop in the moving process just is 50% * 50%=25%, like this, and Factor ₄=0.5+0.25=0.75.

S416 sets up this zone visual telephone service model

${\mathrm{BHCA}}_{\mathrm{videophone}}={\mathrm{BHCA}}_{\mathrm{voice}}\×\underset{i=1}{\overset{4}{\mathrm{\Π}}}{\mathrm{Factor}}_i$

CallDurati?on _videophone＝CallDurati?on _voice

Consider that operator attracts the user to use the 3G business as early as possible, generally adopts the rate identical with speech business to video telephone.The call duration of getting the two like this is identical.Calculate regional single user telephone traffic when busy by following equation:

${\mathrm{Traffic}}_{\mathrm{videophone}}=\frac{{\mathrm{BHCA}}_{\mathrm{videophone}}\×\mathrm{CallDurati}{\mathrm{on}}_{\mathrm{videophone}}}{3600}$

For example, set up the visual telephone service model of dense city

${\mathrm{BHCA}}_{\mathrm{videophone}}={\mathrm{BHCA}}_{\mathrm{voice}}\×\underset{i=1}{\overset{4}{\mathrm{\Π}}}{\mathrm{Factor}}_i=1.2\×0.036=0.0432$

Call?Duration＝60s

Telephone traffic was when so single user was busy:

${\mathrm{Traffic}}_{\mathrm{videophone}}=\frac{{\mathrm{BHCA}}_{\mathrm{videophone}}\×\mathrm{CallDurati}{\mathrm{on}}_{\mathrm{videophone}}}{3600}$

$=\frac{0.0432\×60}{3600}$

$=0.72\mathrm{merl}$

As can be seen, the visual telephone service telephone traffic of the wireless network planning initial stage of dense city prediction only accounts for 3.6% of voice telephone traffic amount.

S418, according to regional prospective users number, the total CS telephone traffic in zoning.

For example, the expection 3G subscription number of dense city is 100,000, and the voice telephone traffic amount in then should the zone is 0.02erl * 100000=2000erl, and video telephone traffic is 72erl.If determine according to 10% of speech business, then video telephone traffic capacity=2000erl * 10%=200erl.

S420 carries out the estimation of field capacity scale.All kinds of parameters in conjunction with each zone are carried out volume calculation.

For example, the related data of dense city is as follows:

The ascending load of system design: 50%

Speech business blocking rate: 2%

Adjacent area interference factor: 0.65

Orthogonal factor: 0.6

City area: 40.8 square kilometres (calculation plot radius)

Service conditions is as follows in the planning zone:

Under the situation that satisfies the CS capacity requirement, need 21 base stations, this moment, down load was 61.94%.

If just merely determine video telephone traffic according to 10% of speech business telephone traffic, then satisfy 30 base stations of capacity requirement needs, this moment, down load was 67.02%.The base station number of pre-planning has had more about 43% than this method of use.

As can be seen, adopt method prediction video telephone traffic of the present invention, not only more press close to the actual conditions and the user behavior in planning area, and can also avoid too high estimation planning regional capacity demand, thereby reduced the networking scale, reduced the networking cost in some areas.

In sum, the present invention by statistical rules from different places the existing network data, user behavior feature etc. in zone obtain a kind of by the speech business parameter with plan that regional user behavior estimates the method for visual telephone service parameter, thereby established a basis for the foundation of the actual CS of 3G system traffic model and the capacity planning of whole network.This method has increased important thinking to the network planning, for the capacity planning at initial stage provides a kind of quick and easy, rational evaluation method.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. a video telephone traffic evaluation method is characterized in that, said method comprising the steps of:

S202 will plan that the area is divided at least one zone according to radio transmission model and service feature;

S204, each the regional voice telephone traffic amount after statistics is divided respectively; And

S206 introduces under the situation of visual telephone service in described zone, adds up each regional video telephone traffic;

Wherein, described step S206 comprises:

S2062, statistics is introduced the existing network high-class terminals ratio factor1 in the zone of visual telephone service;

S2064, the existing network travelling carriage of adding up described zone is called out the ratio factor2 of travelling carriage;

S2066 determines the percept of call completed factor3 in the described zone;

S2068 determines the restriction factor4 that user behavior is accustomed to;

S2070, telephone traffic when hurrying according to following equation calculating visual telephone service list user:

CallDuration _Videophone=CallDuration _Voice, ${\mathrm{Traffic}}_{\mathrm{videophone}}=\frac{{\mathrm{BHCA}}_{\mathrm{videophone}}\×{\mathrm{CallDuration}}_{\mathrm{videophone}}}{3600};$ And

S2072, telephone traffic is calculated the visual telephone service telephone traffic in described zone when busy according to the prospective users quantity in the described zone and described single user;

Wherein, Traffic _VideophoneTelephone traffic when hurrying for visual telephone service list user, BHCA _VideophoneThe number of times that makes a call during for visual telephone service busy, CallDuration _VideophoneBe the lasting duration of the calling of visual telephone service, CallDuration _VoiceBe the lasting duration of the calling of speech business, BHCA _VoiceThe number of times that makes a call during for speech business busy.

2. video telephone traffic evaluation method according to claim 1 is characterized in that, in described step S202, is following at least one zone with described planning regional classification: dense city, general city, suburb and rural area.

3. video telephone traffic evaluation method according to claim 1 is characterized in that, in described step S204, telephone traffic was calculated by following equation when single user of described speech business was busy:

Wherein, the number of times that BHCA makes a call when being busy, CallDuration continues duration for calling out.

4. according to each described video telephone traffic evaluation method in the claim 1 to 3, it is characterized in that described method is used for the 3G (Third Generation) Moblie network planning.

5. a capacity scale estimation method is characterized in that, said method comprising the steps of:

S302 will plan that the area is divided at least one zone according to radio transmission model and service feature;

S304, each the regional voice telephone traffic amount after statistics is divided respectively;

S306 introduces under the situation of visual telephone service in described zone, adds up each regional video telephone traffic; And

S308 estimates described field capacity scale according to described voice telephone traffic amount and described video telephone traffic;

Wherein, described step S306 comprises:

S3062, statistics is introduced the existing network high-class terminals ratio factor1 in the zone of visual telephone service;

S3064, the existing network travelling carriage of adding up described zone is called out the ratio factor2 of travelling carriage;

S3066 determines the percept of call completed factor3 in the described zone;

S3068 determines the restriction factor4 that user behavior is accustomed to;

S3070, telephone traffic when hurrying according to following equation calculating visual telephone service list user:

CallDuration _Videophone=CallDuration _Voice, ${\mathrm{Traffic}}_{\mathrm{videophone}}=\frac{{\mathrm{BHCA}}_{\mathrm{videophone}}\×{\mathrm{CallDuration}}_{\mathrm{videophone}}}{3600};$ And

S3072, telephone traffic is calculated the visual telephone service telephone traffic in described zone when busy according to the prospective users quantity in the described zone and described single user;

Wherein, Traffic _VideophoneTelephone traffic when hurrying for visual telephone service list user, BHCA _VideophoneThe number of times that makes a call during for visual telephone service busy, CallDuration _VideophoneBe the lasting duration of the calling of visual telephone service, CallDuration _VoiceBe the lasting duration of the calling of speech business, BHCA _VoiceThe number of times that makes a call during for speech business busy.

6. capacity scale estimation method according to claim 5 is characterized in that, in described step S302, is following at least one zone with described planning regional classification: dense city, general city, suburb and rural area.

7. capacity scale estimation method according to claim 5 is characterized in that, in described step S304, telephone traffic was calculated by following equation when single user of described speech business was busy:

Wherein, the number of times that BHCA makes a call when being busy, CallDuration continues duration for calling out.

8. according to each described capacity scale estimation method in the claim 5 to 7, it is characterized in that described method is used for the 3G (Third Generation) Moblie network planning.

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