CN103813384A

CN103813384A - Method and device for balancing business in wireless network cell set

Info

Publication number: CN103813384A
Application number: CN201210454261.1A
Authority: CN
Inventors: 葛磊; 李达华; 杨兴伦; 张小林; 陈汉华
Original assignee: China Mobile Group Guangdong Co Ltd
Current assignee: China Mobile Group Guangdong Co Ltd
Priority date: 2012-11-13
Filing date: 2012-11-13
Publication date: 2014-05-21
Anticipated expiration: 2032-11-13
Also published as: CN103813384B

Abstract

The invention relates to a method and a device for balancing business in a wireless network cell set. The method includes the following steps: selecting a part of or all cells in adjacent cells of a first cell to form a cell set with the first cell; calculating a first business balancing parameter of the first cell relative to the cell set according to the resource utilization rate and a covering correlation parameter of the cells in the cell set; judging whether the business of the first cell is balanced according to whether the first business balancing parameter is located in a preset section; adjusting a service parameter of the first cell according to the first business balancing parameter to enable an absolute value of a difference value of a second business balancing parameter of the first cell subjected to service parameter adjustment relative to the cell set and a business balancing parameter threshold to be smaller than an absolute value of a difference value of the first business balancing parameter and the business balancing parameter threshold. The business balancing parameter threshold is limited in the preset section. The method and the device solve the problem in the traditional art that human resources are limited, and the optimization period is long.

Description

Business equalization methods and device in a kind of wireless network set of cells

Technical field

The present invention relates to wireless communication technology field, relate in particular to business equalization methods and device in a kind of wireless network set of cells.

Background technology

Gsm wireless net is made up of cellular basestation community, communicates by letter with data service for the user in its coverage provides radio channel resource to carry out speech business in each cellular cell.The sufficient situation of channel resource of community is closely associated with access performance and the service quality of community, affects user awareness.Due to user's distribution and business demand geographically with temporal dynamic change, make the channel capacity configuration of community static state can not adapt to user's communication requirement, there is the unmatched situation of traffic carrying capacity and channel resource.

In order to address the above problem, the current two class solutions that mainly contain:

(1) hardware adjustment: rolling base station construction and regularly carrier frequency adjustment; This is the effective means that solves longer capacity requirement, but the implementation cycle is long, and the manpower and materials that relate to are larger.

(2) parameter optimization: the signal of idle pulley and enable mode effectively covers relevant parameter and traffic channel assignments parameter is carried out business equilibrium by optimizing; This is the effective means that solves capacity problem short-term, burst, although can only solve capacity requirement by a small margin, short-term, quick, flexible, low cost, be the important means of daily network operation.

User's communication behavior and its Working Life are closely bound up, and its distribution and business demand are quite frequent with temporal variation geographically, and therefore, carrying out business equilibrium by parameter optimization is important, the effective means that solves current network capacity problem.

Parameter optimization is carried out business equilibrium can be divided into following two kinds:

(1) the business equilibrium in community: mainly refer to the business equilibrium between speech business and the data service in community, carry out business equilibrium by the channel assignment strategy of optimizing in community.

(2) the business equilibrium of minizone: mainly refer to the business equilibrium between neighbor cell, carry out business equilibrium by controlling the idle pulley of community and effective covering border of enable mode.

Business equilibrium in current area is in up-to-date technical scheme: by the channel demands of traffic statistics analysis assessment speech business in 15 minutes and data service, calculate the cell channel allocation of parameters thresholdings such as half rate thresholding, dynamic PDCH channel thresholding and TBF thresholding by algorithm, can realize the service dynamic equilibrium in community.But due to the service dynamic equilibrium of just carrying out in community, in the time that the cell channel utilization of resources is nervous, conventionally ensure speech business demand to sacrifice data service.

Business equilibrium for minizone generally comprises the following aspects content:

(1) determine the direction of business equilibrium.Comprise and distinguish He Xian community, busy community, determine the Target cell that business is shared.

(2) measuring of business equilibrium.The step-length of parameter adjustment and the coupling that needs balanced traffic carrying capacity when business is balanced.

(3) selection of parameter.Multiple parameters can be carried out the business equilibrium of minizone, need to determine that those parameter combinations can effectively solve the balanced demand of current business.

(4) the balanced demand of dynamic service.Dynamic, adaptively carry out business equilibrium to adapt to the frequent variations of business demand.

Business equilibrium between prior art scheme small area is generally performed such: technical staff finds that by means such as customer complaint, on-the-spot test and traffic measurement index analysis community or section exist the too high situation of traffic load, determine the business equilibrium that need to carry out minizone.Analyze the indexs such as the every line telephone traffic in community, congested number, PDCH reusing degree and distinguish busy community, then the Target cell that business is shared is tentatively determined in the distribution on map according to busy community.Then according to the service conditions of busy community, attempt according to Optimization Experience the adjustment step-length that some parameters are different, change final determine parameter and the amplitude adjusted by continuous observed traffic index.

The inter-cell traffic balanced operation flow process of prior art scheme as shown in Figure 1,

1) as can be seen from Figure 1, in prior art scheme, there is no unified standard for the assessment of business relative equilibrium situation and the selection of business equalization target community of community, depend on technical staff's empirical analysis.The relative equilibrium situation of the business equilibrium of minizone based on community in certain area carried out, and the reasonable assessment of the business equilibrium situation of community and the Target cell of business equilibrium is related to efficiency and the effect of optimization.

2) adjustment of different parameters is different to the effect of business equilibrium, and in prior art scheme, the selection of parameter and amplitude thereof are not measured foundation.Determine by making repeated attempts, efficiency is lower.

3) due to balanced hysteresis of business of minizone, the service dynamic equilibrium while causing community high load capacity in community ensures speech business demand to sacrifice data service conventionally, affects user awareness.

4) index monitoring in traditional network optimization means, index extraction, index analysis and enforcement adjustment scheme all need technical staff manually to participate in, and links is consuming time longer, causes adjustment cycle long, and effect is adjusted in impact.

5) workflow relies on manually, optimizes and revises effect and is limited to network optimization technical staff's technical capability and the familiarity to network, and subjectivity is larger, thereby has influence on the effect of optimization of enforcement.

Summary of the invention

The present invention is in order to solve the problems of the technologies described above, and proposes business equalization methods and device in a kind of wireless network set of cells, solved in conventional art human resources limited, and enforcement means are more subjective, the shortcoming that optimization cycle is long.

In order to achieve the above object, the technical solution used in the present invention is: business equalization methods in a kind of wireless network set of cells, comprises the following steps:

From the adjacent area of the first community, select part or all of community, and described the first community forms a set of cells;

Calculate the first business balance parameters of the first community with respect to described set of cells according to the covering relevance of the resource utilization of described set of cells small area and community;

Whether be positioned at a pre-set interval according to described the first business balance parameters and judge that whether described the first Zone is balanced;

Adjust the service parameter of the first community according to described the first business balance parameters, wherein, the first community after adjustment service parameter is less than the absolute value of the difference of the first business balance parameters and described business balance parameters thresholding with respect to the absolute value of the second business balance parameters of described set of cells and the difference of a business balance parameters thresholding, described business balance parameters thresholding is positioned at described pre-set interval.

Further, from the adjacent area of the first community, select part or all of community to be specially: the community of the predetermined number going out according to incidence coefficient selective sequential from big to small, the incidence coefficient of the first adjacent area is the ratio of the first numerical value and second value, wherein, the first numerical value is the number of times that dominant frequency corresponding to the first adjacent area occurs in measurement report set, second value be described the first community report the first adjacent area dominant frequency is measured time overall measurement number of reports.

Further, calculate the first business balance parameters E of the first community with respect to described set of cells according to the covering relevance of the resource utilization of described set of cells small area and community _sas follows:

E_{S} = \frac{R_{S}}{Σ_{i} (R_{i} \times {F^{'}}_{si})}

Wherein, R _srepresent described the first cell channel resource utilization, R _irepresent the channel resource utilance of i adjacent area of described the first community, F ' _sirepresent the covering relevance parameter of i adjacent area in described set of cells, for the incidence coefficient of all adjacent areas in the incidence coefficient of described i adjacent area and set of cells and ratio.

Further, described service parameter comprises:

Can change the first kind service parameter of the capacity of the channel of described the first community; And/or

Can change the Equations of The Second Kind service parameter on the covering border of described the first community.

Further, described Equations of The Second Kind service parameter comprises: the adjacent area handoff threshold parameter of described the first community and/or frequency power parameter and/or the cell reselection parameters of described the first community.

Further, corresponding to different congestion level, different service parameters has different priority, the business balance parameters of described the first community of described foundation is adjusted in the step of service parameter of the first community, adjusts described service parameter according to the service parameter priority corresponding with current congestion grade order from big to small.

Further, corresponding to different congestion level, the predeterminable different adjusting range of each service parameter, the traffic carrying capacity of calculating described the first community extrapolation after a service parameter adjustment or absorbing, judges whether described the first community accumulative total extrapolation after this service parameter adjustment or the traffic carrying capacity absorbing are less than the traffic carrying capacity that described the first community need to extrapolate or absorb;

When after this service parameter of adjustment, the traffic carrying capacity of the first community accumulative total extrapolation or absorption is less than the traffic carrying capacity that need to extrapolate or absorb in described the first community, select again the service parameter of next priority in current congestion grade to adjust, until the traffic carrying capacity of described the first community accumulative total extrapolation or absorption is not less than the traffic carrying capacity that described the first community need to extrapolate or absorb.

Further, business balance parameters according to described the first community is adjusted in the step of service parameter of the first community, service parameter by adjusting the first community is to all adjacent areas transmission service in described set of cells, wherein, the first business balance parameters of described the first community is greater than a business balance parameters thresholding, or

Absorb business by the service parameter of adjusting the first community to all adjacent areas in described set of cells, wherein, the first business balance parameters of described the first community is less than described business balance parameters thresholding.

Further, the service parameter by adjusting the first community is to the second community transmission service in the adjacent area of selecting, and wherein, the channel resource utilance of described the second community is less than the channel resource utilance of described the first community, or

The business that absorbs the second community in the adjacent area of selecting by adjusting the service parameter of the first community, wherein, the channel resource utilance of described the second community is greater than the channel resource utilance of described the first community.

Further, according to described the first community with respect to the second community described in the selective sequential from big to small of the absolute value of the 3rd business balance parameters of i adjacent area in described set of cells, described the 3rd business balance parameters is the covering relevance parameter of i adjacent area and the product of the first numerical value in described set of cells, the difference of the channel resource utilance that described the first numerical value is described i adjacent area and the resource utilization of described the first community.

The present invention also provides business balancer in a kind of wireless network set of cells, comprising:

Select module, for selecting part or all of community from the adjacent area of the first community, and described the first community forms a set of cells;

The first business balance parameters acquisition module, for the first business balance parameters with respect to described set of cells according to covering relevance calculation of parameter first community of the resource utilization of described set of cells small area and community;

Judge module, judges that for whether be positioned at a pre-set interval according to described the first business balance parameters whether described the first Zone is balanced;

The balanced adjusting module of business, for adjust the service parameter of the first community according to described the first business balance parameters, wherein, the first community after adjustment service parameter is less than the absolute value of the difference of the first business balance parameters and described business balance parameters thresholding with respect to the absolute value of the second business balance parameters of described set of cells and the difference of a business balance parameters thresholding, described business balance parameters thresholding is positioned at described pre-set interval.

Further, described selection module is specifically for the community of the predetermined number that goes out according to incidence coefficient selective sequential from big to small, the incidence coefficient of the first adjacent area is the ratio of the first numerical value and second value, wherein, the first numerical value is the number of times that dominant frequency corresponding to the first adjacent area occurs in measurement report set, second value be described the first community report the first adjacent area dominant frequency is measured time overall measurement number of reports.

Further, described the first business balance parameters E _sas follows:

E_{S} = \frac{R_{S}}{Σ_{i} (R_{i} \times {F^{'}}_{si})}

Further, described service parameter comprises:

Further, corresponding to different congestion level, different service parameters has different priority, and the balanced adjusting module of described business is for adjusting described service parameter according to the service parameter priority corresponding with current congestion grade order from big to small.

Further, the balanced adjusting module of described business also for the cell-level service parameter by adjusting the first community to all adjacent areas transmission service in described set of cells, wherein, the first business balance parameters of described the first community is greater than a business balance parameters thresholding, or

Absorb business by the cell-level service parameter of adjusting the first community to all adjacent areas in described set of cells, wherein, the first business balance parameters of described the first community is less than described business balance parameters thresholding.

Further,

The balanced adjusting module of described business concrete also for according to described the first community with respect to the second community described in the selective sequential from big to small of the absolute value of the 3rd business balance parameters of i adjacent area of described set of cells, described the 3rd business balance parameters is the covering relevance parameter of i adjacent area and the product of the first numerical value in described set of cells, the difference of the channel resource utilance that described the first numerical value is described i adjacent area and the resource utilization of described the first community.

The invention has the beneficial effects as follows: unify, reasonably assess business relative equilibrium situation and business equilibrium direction in set of cells, the priority of different service parameters is set according to different congestion level, thereby reach careful and efficient effect of optimization, human resources are solved in traditional business balancing technique limited, enforcement means are more subjective, the shortcoming that optimization cycle is long.

Accompanying drawing explanation

Fig. 1 represents business balanced operation flow chart between prior art small area;

Fig. 2 represents business equalization methods flow chart in wireless network set of cells of the present invention;

Fig. 3 represents the balanced flow chart of adjusting the first scheme of the present invention;

Fig. 4 represents the balanced flow chart of adjusting first scheme of the present invention;

Fig. 5 represents the balanced flow chart of adjusting the third scheme of the present invention;

Fig. 6 represents the balanced flow chart of adjusting the 4th kind of scheme of the present invention;

Fig. 7 represents the adjustment scheme flow chart of the present invention the first community in underload scene;

Fig. 8 represents the balanced overall flow figure that adjusts of business in wireless network set of cells of the present invention;

Fig. 9 represents the nearby region measurement report reporting schematic diagram of the first community;

Figure 10 represents the first business balance parameters schematic diagram;

Figure 11 represents the 3rd business balance parameters schematic diagram;

Figure 12 represents the graph of a relation of channel resource utilance and congested number;

Figure 13 represents the graph of a relation of channel resource utilance and idle channel number.

Embodiment

Below in conjunction with accompanying drawing, structure of the present invention and principle are elaborated, illustrated embodiment, only for explaining the present invention, not limits protection scope of the present invention with this.

In order to realize the business equilibrium of community, as shown in Figure 2, the present embodiment provides business equalization methods in a kind of wireless network set of cells, comprises the following steps:

Adjust the service parameter of the first community according to the business balance parameters of described the first community, wherein, adjust service parameter Hou community is less than the difference of the first business balance parameters and described business balance parameters thresholding absolute value with respect to the absolute value of the second business balance parameters of described set of cells and the difference of a business balance parameters thresholding, described business balance parameters thresholding is positioned at described pre-set interval.

Unified, reasonably assess business relative equilibrium situation and business equilibrium direction in set of cells, solved in conventional art human resources limited, enforcement means are more subjective, the shortcoming that optimization cycle is long.

It is to be noted, the first business balance parameters is the original business balance parameters of the first community with respect to described set of cells, or last time adjust after business balance parameters, the second business balance parameters be by adjust service parameter the business of the first community is carried out to business balance parameters after equilibrium, new.

Realize the business equilibrium of the first community, need to take into full account the covering relevance of the neighboring interval of the first community and the first community, to assess relative business equilibrium situation and select to carry out the associated cell of business equilibrium and adjust strategy.Therefore, need to set up set of cells.

In the present embodiment, from the adjacent area of the first community, select part or all of community to be specially: the community of the predetermined number going out according to incidence coefficient selective sequential from big to small, the incidence coefficient of the first adjacent area is the ratio of the first numerical value and second value, wherein, the first numerical value is the number of times that dominant frequency corresponding to the first adjacent area occurs in measurement report set, second value be described the first community report the first adjacent area dominant frequency is measured time overall measurement number of reports.

The adjacent area close with the Relationship Comparison of the first community is the candidate adjacent of MS switching or gravity treatment, in order effectively to realize the business equilibrium of the first community, in the present embodiment, choose the adjacent area that can be reported by high frequency as the last six adjacent area in numerous adjacent areas, described incidence coefficient is taked the last six nearby region measurement ratio in the present embodiment, and incidence coefficient is the ratio of adjacent cell the measurement report number occurring as the last six adjacent area and the overall measurement number of reports that Serving cell reports during adjacent area dominant frequency is measured.

Be implemented as follows:

As shown in Figure 9, the adjacent area dominant frequency that mobile station MS issues GSM network in enable mode is measured frequency collection and is traveled through measurement; In measuring process, to decoding the measurement frequency BCCH of base station identity code BSIC, be designated an adjacent area of Serving cell with BCCH/BSIC combination, sort according to the signal strength measurement of adjacent area, get in the measurement report that the first six strong adjacent area (the last six is only a kind of specific implementation, and signal strength measurement specifically comprises that the measurement result of several adjacent areas does not affect the realization of the embodiment of the present invention) reports at each SACCH cycle 480ms and report corresponding measurement result; The last six cell measurement ratio is the ratio of measurement report total hits in Serving cell during adjacent area BCCH/BSIC is combined in the hits of conduct the last six adjacent area in the collected measurement report set of NCS and this BCCH and measures.

NCS is systematic collection MS(travelling carriage) a kind of function (NCS is only a kind of specific implementation of this function, and the implementation of this function does not affect the realization of the embodiment of the present invention) of the measurement report set of the dominant frequency metrical information of the adjacent area of the first community of reporting.The incidence coefficient of minizone, by the covering relevance of the last the six measurement scale assessment minizone, neighbor cell in NCS and the ability that business is shared, only has the strong adjacent area of relevance of covering just likely to carry out effective traffic equilibrium.

The quantity of described set of cells small area can be set according to conditions such as regions, because the foundation of set of cells is the business equilibrium that realizes described the first community for more effective, so the adjacent area of described the first community and described the first community need to be greater than zero in the switchable number of services of busy.

In order to guarantee that the effective business in minizone in set of cells shares ability, the last six measurement scale of the adjacent area of described the first community is greater than 1%.

Calculate the first business balance parameters E of the first community with respect to described set of cells according to the covering relevance of the resource utilization of described set of cells small area and community _sas follows:

E_{S} = \frac{R_{S}}{Σ_{i} (R_{i} \times {F^{'}}_{si})}

Wherein, R _srepresent described the first cell channel resource utilization, R _irepresent the channel resource utilance of i adjacent area of described the first community, F ' _sirepresenting the covering relevance parameter of i adjacent area in described set of cells, is the incidence coefficient F of described i adjacent area _siwith the incidence coefficient of all adjacent areas in set of cells and ratio.

The detailed process of calculating described the first business balance parameters is as follows:

(1) calculation plot channel resource utilance first:

Cell channel resource utilization is assessed the Traffic Channel demand of community and the match condition of available channel by the channel demands of standardization speech business and data service, has reflected the channel resource applied load of community.Judge the business equilibrium direction of community according to the channel resource utilance contrast of Serving cell and adjacent area.

The acquisition methods of standardization voice traffic channel quantity required has a lot, in the present embodiment, by look-up-table function, according to the standardization voice traffic channel quantity required of Ireland table estimation certain GOSXia community institute traffic carried.

Described standardization voice traffic channel quantity required N _v:

N _v=erlangB_device(T，B)

Wherein T represents community traffic carried, and B represents the percent of call lost of voice service.

The channel demands quantity N of described data service _pobtain by following formula:

N_{p} = P \times \frac{D}{Q}

Wherein P represents the quantity of the data traffic channels PDCH of mean allocation, and D represents the utilance of the data traffic channels PDCH of community, and Q represents the target exploitation rate of data traffic channels PDCH.

Certainly, data traffic channels quantity required also can application mix Ireland table or additive method obtain.The resource utilization R of described set of cells small area: wherein Na represents community available traffic channel quantity.

(2) obtain the covering relevance parameter F of described set of cells small area ' _si:

By the cell channel resource utilization in set of cells with cover relevance parameter acquiring the first community with respect to the first business balance parameters Es of described set of cells:

E_{S} = \frac{R_{S}}{Σ_{i} (R_{i} \times {F^{'}}_{si})}

As shown in figure 10, the first business balance parameters of the first community can reflect the current traffic load in the first community in set of cells whether in relative equilibrium and drift rate thereof.In the present embodiment, judge whether equilibrium has following two kinds of modes: mode one for the business of the first community: whether equal a preset value according to the first business balance parameters of described the first community and judge that whether the business of described the first community is balanced, in the present embodiment, described preset value is 1, is specially: as the first business balance parameters E _s> 1, push service outside community totally needs in described set of cells, as the first business balance parameters E _s=1, the traffic load of community, in relative equilibrium in described set of cells, makes the variance minimum of the channel resource utilance in described set of cells, as the first business balance parameters E _s< 1, community totally need to absorb business in described set of cells.

Mode two: because the traffic carrying capacity of community is in the different periods, number of services varies widely, so too frequent for fear of the balanced adjustment of Zone, in the present embodiment, whether be positioned at a pre-set interval by the first business balance parameters of described the first community and judge that whether the business of described the first community is balanced, in the present embodiment, described pre-set interval is (1.1, 0.9), be specially: when the first business balance parameters of the first community is positioned at described pre-set interval (1.1, 0.9) when interior, the traffic load of the first community is in relative equilibrium state, when the business balance parameters of the first community is positioned at described pre-set interval (1.1, 0.9) when outer, the traffic load imbalance of the first community.In the time that the first business balance parameters of the first community is greater than 1.1, the service needed of the first community outwards pushes, and in the time that the first business balance parameters of the first community is less than 0.9, the first community need to absorb business.Therefore, can judge the cell-level business balance policy that should take the first community according to the first business balance parameters of the first community, instruct as the adjustment direction of the cell-level business balance parameters such as the layer thresholding of the C2 algorithm parameter of idle pulley, dual-frequency network.

Adjust the service parameter of the first community according to the first business balance parameters of described the first community, wherein, adjust service parameter Hou community is less than the difference of the first business balance parameters and described business balance parameters thresholding absolute value with respect to the absolute value of the second business balance parameters of described set of cells and the difference of a business balance parameters thresholding, described business balance parameters thresholding is positioned at described pre-set interval.

In the present embodiment, judging the first Zone when unbalanced according to the first business balance parameters, by adjusting the service parameter of the first community, make to adjust service parameter Hou community is less than the difference of the first business balance parameters and described business balance parameters thresholding absolute value with respect to the absolute value of the second business balance parameters of described set of cells and the difference of a business balance parameters thresholding.

In order to make the first Zone in optimal equalization state, in the time judging whether described the first community the first business balance parameters whether balanced criterion is described the first community equals a preset value, described business balance parameters thresholding is described preset value, when adjusting the service parameter of the first community, make to adjust service parameter Hou community and equal described business balance parameters thresholding with respect to the second business balance parameters of described set of cells, adjusting service parameter Hou community is 1 o'clock with respect to the second business balance parameters of described set of cells and the difference of a business balance parameters thresholding, the business of described the first community is in optimal equalization state.

In the time judging whether described the first community the first business balance parameters whether balanced criterion is described the first community is positioned at a pre-set interval, described service parameter thresholding is positioned at described pre-set interval, when adjusting the service parameter of the first community, make to adjust the first community after service parameter is less than the difference of the first business balance parameters and described business balance parameters thresholding absolute value with respect to the absolute value of the second business balance parameters of described set of cells and the difference of a business balance parameters thresholding, and the first community after adjustment service parameter is positioned at described pre-set interval with respect to the second business balance parameters of described set of cells, the business of described the first community is in optimal equalization state.

In the present embodiment, in order effectively to adjust the equilibrium of the first Zone, business balance parameters according to described the first community is adjusted in the step of service parameter of the first community, service parameter by adjusting the first community is to all adjacent areas transmission service in described set of cells, wherein, the first business balance parameters of described the first community is greater than a business balance parameters thresholding, or

Although above-mentioned adjustment can reach the business equilibrium of the first community, but, outside the first community needs when push service, the all adjacent areas that are not the first community can absorb business, service parameter push service outside all adjacent areas of adjusting the first community, can cause the business of some adjacent area unbalanced, even congested serious, so for fear of the generation of above-mentioned situation, also proposed following adjustment scheme in the present embodiment:

Service parameter by adjusting the first community is to the second community transmission service in the adjacent area of selecting, and wherein, the channel resource utilance of described the second community is less than the channel resource utilance of described the first community, or

If the neighboring interval business of carrying out the first Zone with the channel resource utilance contrast of the adjacent area of the first community by the first community is balanced, exist the channel resource rate of an adjacent area to be less than the channel resource utilance of described the first community, but the relevance of this adjacent area and described the first community is poor, so that affect the efficiency of the first Zone equilibrium, so need to be according to described the first community with respect to the second community described in the selective sequential from big to small of the absolute value of the 3rd business balance parameters of i adjacent area in described set of cells, described the 3rd business balance parameters is the covering relevance parameter of i adjacent area and the product of the first numerical value in described set of cells, the difference of the channel resource utilance that described the first numerical value is described i adjacent area and the resource utilization of described the first community.

The first community is with respect to the 3rd business balance parameters E of i adjacent area in set of cells _si=F ' _si× (R _i-R _s)

Wherein, F ' _sirepresent the covering relevance parameter of i adjacent area in described set of cells, R _irepresent the channel resource utilance of described i adjacent area, R _srepresent the resource utilization of described the first community.

As shown in figure 11, as the 3rd business balance parameters E _si> need take 0, the first community to absorb the balance policy of associated cell business in set of cells, as the 3rd business balance parameters E _si=0, the traffic load of minizone is temporarily in relative equilibrium, as the 3rd business balance parameters E _si< need take 0, the first community in set of cells the balance policy of push service outside associated cell.

Therefore, can judge the business balance policy that should take the first community according to described the 3rd business balance parameters, and combine according to demand the associated adjacent area of extrapolation and the business of absorption, to reach the effect of traffic grooming.

And according to the first business balance parameters and the 3rd business balance parameters, in carrying out described the first Zone equilibrium, can also play the business equilibrium of all communities in set of cells, as shown in figure 11, that is, obtain the business balance policy of the first community by described the first business balance parameters, outside described the first community needs under the condition of push service, select the 3rd business balance parameters to be greater than zero by the 3rd business balance parameters, and the larger adjacent area of the 3rd business balance parameters absorb business; Meanwhile, select the 3rd business balance parameters to be less than zero, and the larger adjacent area transmission service of the absolute value of the 3rd business balance parameters, reach the business equilibrium of community in set of cells.

For example: if the first business balance parameters Es 1.3 of the GSM1800 community of low layer in dual-frequency network, in set of cells, need extrapolation business, can take to shrink as promoted layer threshold parameter LAYERTHR the border of the GSM1800 community under enable mode, and/or shrink GSM1800 cell boarder under idle pulley by reducing the modes such as parameters C RO, outwards push the business of GSM1800 community.And according to the 3rd business balance parameters Esi sequence of minizone, the neighboring BS relationship parameter OFFSET that the 3rd business balance parameters Esi is less than-0.3 same layer adjacent area carries out negative bias and moves contraction handoff boundary, outwards push the business of this adjacent area, to reach the object of business equilibrium in set of cells.

In the present embodiment, comprise for the described service parameter of adjusting the first Zone equilibrium:

Described Equations of The Second Kind service parameter comprises: the adjacent area handoff threshold parameter of described the first community and/or frequency power parameter and/or the cell reselection parameters of described the first community.

In the present embodiment, if it is very large to adjust the amplitude of a service parameter, be enough to meet the traffic carrying capacity that the first community needs are extrapolated or absorbed, adjust the object that a service parameter can reach the first Zone equilibrium, if it is little to adjust the amplitude of a service parameter, be not enough to meet the traffic carrying capacity that the first community needs are extrapolated or absorbed, need to adjust multiple service parameters and combine.Generally, the adjusting range of service parameter is excessive or affect network quality, in the present embodiment, adopts the multiple parameters of adjustment to reach the adjustment of the first Zone equilibrium.

Corresponding to different congestion level, the predeterminable different adjusting range of each service parameter, the traffic carrying capacity of calculating described the first community extrapolation after a service parameter adjustment or absorbing, judges whether described the first community accumulative total extrapolation after this service parameter adjustment or the traffic carrying capacity absorbing are less than the traffic carrying capacity that described the first community need to extrapolate or absorb;

In order to realize the adjustment that becomes more meticulous.Measure (being adjusting range) to realize parameter adjustment by corresponding with balanced traffic carrying capacity the effect of various parameter adjustments.

(1) parameter adjustment on impact covering border is measured

According to radio signal propagation theory, show that by received signal level difference and the relation table of distance business balance parameters adjusts corresponding covering and change ratio, as following table:

" signal level difference and the relation table apart from difference " that drawn by " signal level difference and the relation apart from difference " of above table can derive following relation:

Level difference value	Cover ratio	Traffic assimilation ratio	Level difference value	Cover ratio	Traffic extrapolation ratio
						1	1.06	0.06	-1	0.94	0.06
2	1.12	0.12	-2	0.89	0.11
						3	1.19	0.19	-3	0.84	0.16
4	1.26	0.26	-4	0.79	0.21
						5	1.33	0.33	-5	0.75	0.25
6	1.41	0.41	-6	0.71	0.29

Power difference	Cover ratio	Traffic assimilation ratio	Power difference	Cover ratio	Traffic extrapolation ratio
						1	1.06	0.06	-1	0.94	0.06
2	1.12	0.12	-2	0.89	0.11
						3	1.19	0.19	-3	0.84	0.16
4	1.26	0.26	-4	0.79	0.21
						5	1.33	0.33	-5	0.75	0.25
6	1.41	0.41	-6	0.71	0.29

Above form represents signal level difference value and the relation table apart from difference, covering corresponding to signal level difference that can obtain the service parameter generation of adjusting described the first community changes ratio, cover and change ratio according to equalizing traffic=current business amount *, further adjust the equalizing traffic of the service parameter of described the first community according to covering variation ratio calculation, wherein, described covering changes ratio and is equivalent to described the first community extrapolation or the traffic carrying capacity absorbing and ratio of current business amount, thus the business portfolio effect of quantification service parameter adjustment.

For example: adjustment one service parameter makes the signal of the first community cover electrical level rising or reduces 1dB, and corresponding level difference value is 1dB, and the covering of correspondence variation ratio is 6%.

Be the negative effect that network brings in order to reduce to adjust service parameter, the amplitude that service parameter is adjusted is unsuitable excessive, according to the default adjusting range of adjusting a service parameter, calculate corresponding covering and change ratio, thereby calculate the traffic carrying capacity of adjusting this service parameter first community extrapolation or absorbing, if the traffic carrying capacity that total traffic carrying capacity of adjusting the first community extrapolation after this service parameter or absorb is less than the first community expection extrapolation or absorbs, continue to adjust next service parameter, until the first Zone equilibrium.

(2) parameter adjustment that affects border, adjacent area is measured

Described in when while being the first handoff threshold value according to handoff threshold value, the measurement report number of samples of the first adjacent area and handoff threshold value are the second handoff threshold value, the ratio calculation handoff boundary business of the difference of measurement report number of samples of the first adjacent area and the overall measurement of the first community report hits value changes ratio, the parameter adjustment of neighboring BS relationship handoff threshold measure into the difference of described the second handoff threshold value and described the first handoff threshold value wherein, described handoff boundary business changes ratio be the first community with the first community extrapolation or the traffic carrying capacity absorbing and ratio of current business amount described in the covering boundary of described the first adjacent area.

Instantiation is as follows:

The 2dB/4dB/6dB that in measuring according to NCS, customization arranges measures the MRR sampling number of sampled point and synchro measure, and corresponding handoff boundary business variation ratio is measured in the neighboring BS relationship handoff threshold parameter adjustment that can evaluate 2dB/4dB/6dB:

2dB business changes ratio=(TIMESRELSS2-TIMESRELSS)/total sampled point of community MRR

4dB business changes ratio=(TIMESRELSS3-TIMESRELSS)/total sampled point of community MRR

6dB business changes ratio=(TIMESRELSS4-TIMESRELSS)/total sampled point of community MRR

(TIMESRELSS, TIMESRELSS2, TIMESRELSS3, TIMESRELSS4 corresponding NCS customized parameter RELSSP=0 respectively, RELSS2N=2, RELSS3N=4, the sampling number of RELSS4N=6 handoff threshold value).

Be the negative effect that network brings in order to reduce to adjust service parameter, the amplitude that service parameter is adjusted is unsuitable excessive, according to the default adjusting range of adjusting a neighboring BS relationship handoff threshold parameter, calculate corresponding handoff boundary business and change ratio, thereby calculate the traffic carrying capacity of adjusting this neighboring BS relationship handoff threshold parameter first community extrapolation or absorbing, if the traffic carrying capacity that total traffic carrying capacity of adjusting the first community extrapolation after this neighboring BS relationship handoff threshold parameter or absorb is less than the first community expection extrapolation or absorbs, continue to adjust next service parameter, until the first Zone equilibrium.

Corresponding to different congestion level, different service parameters has different priority, the business balance parameters of described the first community of described foundation is adjusted in the step of service parameter of the first community, adjusts described service parameter according to the service parameter priority corresponding with current congestion grade order from big to small.

For fear of other performances that affect network because of service parameter adjustment, the adjusting range of service parameter is unsuitable excessive, so the traffic carrying capacity that need to extrapolate and absorb according to the first community, can select multiple parameters to adjust, to reach the first Zone equilibrium, and according to the traffic congestion grade of community, choosing as much as possible affects smaller parameter to network performance and preferentially adjusts, in the congested more serious situation of Dan community, need preferential selection the balanced effectively service parameter of Zone, the selection of the priority of service parameter, and service parameter adjusting range, the quantity of the service parameter that need to adjust can be according to the balanced cycle of Zone, the traffic carrying capacity that needs extrapolation or absorb is set.

Below illustrate corresponding to different congestion level, different service parameters has different priority.

As shown in figure 12, in the time that channel resource utilance is greater than 90%, will produce significantly congested, so using channel resource utilance be greater than 90% outside the first community needs the boundary of push service.Channel resource utilance is greater than 150% as superelevation load boundary.Congestedly may be the service of provisional obstruction user access network but repeatedly attempt still can obtaining service after access, also likely user is final cannot access network service because congested, is designated as perceiving congestion.So set high load scenarios condition:

(channel resource utilance >90%) or (perceiving congestion >0)

And in the time that cell channel resource utilization is greater than 90%, the channel of community starts to occur congested; In the time that cell channel resource utilization is greater than 120%, the channel congestion of community is more obvious; In the time that the channel resource utilance of community is greater than 150%, the channel congestion of community is serious, so under described high load scenarios condition, set following several adjustment schemes according to the channel resource utilance of the adjacent area of the first cell channel resource utilization and the first community:

The first scheme: under the condition of (cell channel resource utilization >120%or perceiving congestion rate >=2%) andmin (channels of neighboring areas resource utilization) >70%, set the preferential described first kind service parameter of adjusting, then adjust described Equations of The Second Kind service parameter.

As shown in Figure 3, an instantiation is as follows:

Adjust parameter DTHNAMR/DTHAMR, trigger the half rate of more branched MS priority allocation community of holding half rate, increase Zone channel capacity;

Judge whether the telephone traffic that need to extrapolate community is greater than the telephone traffic of adjusting parameter DTHNAMR/DTHAMR expection absorption;

The telephone traffic that need to extrapolate in community is greater than under the condition of the telephone traffic of adjusting parameter DTHNAMR/DTHAMR expection absorption, adjusts parameter ODPDCHLIMIT, limits the quantity of dynamic data Traffic Channel, preferentially ensures the channel demands of speech business;

Judge whether the telephone traffic that need to extrapolate community is greater than the summation of adjusting the telephone traffic of parameter DTHNAMR/DTHAMR expection absorption and adjusting the telephone traffic of parameter ODPDCHLIMIT expection extrapolation;

The telephone traffic that need to extrapolate in community is greater than to be adjusted under the telephone traffic of parameter DTHNAMR/DTHAMR expection absorption and the condition of the summation of the telephone traffic of adjustment parameter ODPDCHLIMIT expection extrapolation, adjust B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR, reduce cell signal power, shrink overlay area;

Judge whether the telephone traffic that need to extrapolate community is greater than the telephone traffic adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust parameter ODPDCHLIMIT expection extrapolation telephone traffic and the summation of telephone traffic of adjusting B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR expection extrapolation;

The telephone traffic that the telephone traffic that need to extrapolate in community is greater than the telephone traffic adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust parameter ODPDCHLIMIT expection extrapolation with adjust under the condition of summation of telephone traffic of B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR expection extrapolation, adjust parameter A CCMIN, improve the signal coverage criteria of access community.

In Fig. 3, W represents the telephone traffic that need to extrapolate in the first community, D represents to adjust the telephone traffic that parameter DTHNAMR/DTHAMR expection absorbs, E represents to adjust the telephone traffic that parameter ODPDCHLIMIT expection absorbs, and P represents to adjust the telephone traffic of B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR expection extrapolation.

First scheme: under the condition of (cell channel resource utilization >=150%or perceiving congestion rate >=2%) andmin (channels of neighboring areas resource utilization) <70%, set the preferential described first kind service parameter of adjusting, then adjust described Equations of The Second Kind service parameter.

As shown in Figure 4, an instantiation is as follows:

The telephone traffic that need to extrapolate in community is greater than to be adjusted under the telephone traffic of parameter DTHNAMR/DTHAMR expection absorption and the condition of the summation of the telephone traffic of adjustment parameter ODPDCHLIMIT expection extrapolation, adjustment parameter L AYERTHR;

Judge whether the telephone traffic that need to extrapolate community is greater than the telephone traffic adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust parameter ODPDCHLIMIT expection extrapolation telephone traffic and the summation of telephone traffic of adjusting parameter L AYERTHR expection extrapolation;

The telephone traffic that the telephone traffic that need to extrapolate in community is greater than the telephone traffic adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust parameter ODPDCHLIMIT expection extrapolation with adjust under the condition of summation of telephone traffic of parameter L AYERTHR expection extrapolation, adjust parameters C RO;

Judge whether the telephone traffic that need to extrapolate community is greater than telephone traffic, the telephone traffic of adjusting parameter ODPDCHLIMIT expection extrapolation adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust parameter L AYERTHR expection extrapolation telephone traffic and the summation of telephone traffic of adjusting parameters C RO expection extrapolation;

The telephone traffic that the telephone traffic that need to extrapolate in community is greater than telephone traffic, the telephone traffic of adjusting parameter ODPDCHLIMIT expection extrapolation adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust parameter L AYERTHR expection extrapolation with adjust under the condition of summation of telephone traffic of parameters C RO expection extrapolation, adjust the neighboring BS relationship parameter OFFSETP of selected adjacent area;

Judge whether the telephone traffic that need to extrapolate community is greater than telephone traffic, the telephone traffic of adjusting parameter ODPDCHLIMIT expection extrapolation, the telephone traffic of adjusting parameter L AYERTHR expection extrapolation adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust parameters C RO expection extrapolation telephone traffic and the summation of telephone traffic of adjusting parameter OFFSETP expection extrapolation;

The telephone traffic that the telephone traffic that need to extrapolate in community is greater than telephone traffic, the telephone traffic of adjusting parameter ODPDCHLIMIT expection extrapolation, the telephone traffic of adjusting parameter L AYERTHR expection extrapolation adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust parameters C RO expection extrapolation with adjust under the condition of summation of telephone traffic of parameter OFFSETP expection extrapolation, adjust B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR;

Judge whether the telephone traffic that need to extrapolate community is greater than telephone traffic, the telephone traffic of adjusting parameter ODPDCHLIMIT expection extrapolation, the telephone traffic of adjusting parameter L AYERTHR expection extrapolation, the telephone traffic of adjusting parameters C RO expection extrapolation adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust parameter OFFSETP expection extrapolation telephone traffic and the summation of telephone traffic of adjusting B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR expection extrapolation;

The telephone traffic that the telephone traffic that need to extrapolate in community is greater than telephone traffic, the telephone traffic of adjusting parameter ODPDCHLIMIT expection extrapolation, the telephone traffic of adjusting parameter L AYERTHR expection extrapolation, the telephone traffic of adjusting parameters C RO expection extrapolation adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust parameter OFFSETP expection extrapolation with adjust under the condition of summation of telephone traffic of B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR expection extrapolation, adjust parameter A CCMIN;

Judge whether the telephone traffic that need to extrapolate community is greater than telephone traffic, the telephone traffic of adjusting parameter ODPDCHLIMIT expection extrapolation, the telephone traffic of adjusting parameter L AYERTHR expection extrapolation, the telephone traffic of adjusting parameters C RO expection extrapolation, the telephone traffic of adjusting parameter OFFSETP expection extrapolation adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR expection extrapolation telephone traffic and the summation of telephone traffic of adjusting parameter A CCMIN expection extrapolation;

The telephone traffic that the telephone traffic that need to extrapolate in community is greater than telephone traffic, the telephone traffic of adjusting parameter ODPDCHLIMIT expection extrapolation, the telephone traffic of adjusting parameter L AYERTHR expection extrapolation, the telephone traffic of adjusting parameters C RO expection extrapolation, the telephone traffic of adjusting parameter OFFSETP expection extrapolation adjusting parameter DTHNAMR/DTHAMR expection and absorb, adjust B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR expection extrapolation with adjust under the condition of summation of telephone traffic of parameter A CCMIN expection extrapolation, adjust parameter L AYER.

In Fig. 4, W represents the telephone traffic that need to extrapolate in the first community, D represents to adjust the telephone traffic that parameter DTHNAMR/DTHAMR expection absorbs, E represents to adjust the telephone traffic that parameter ODPDCHLIMIT expection absorbs, L represents to adjust the telephone traffic of parameter L AYERTHR expection extrapolation, C represents to adjust the telephone traffic of parameters C RO expection extrapolation, O represents to adjust the telephone traffic of parameter OFFSETP expection extrapolation, P represents to adjust the telephone traffic of B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR expection extrapolation, and A represents to adjust the telephone traffic of parameter A CCMIN expection extrapolation.

The third scheme: (cell channel resource utilization is (120%, 150%) under the condition of and min (channels of neighboring areas resource utilization) <70%, set preferential adjacent area handoff threshold parameter and the cell reselection parameters of adjusting in described Equations of The Second Kind service parameter, then adjust the frequency power parameter of the first community.

As shown in Figure 5, an instantiation is as follows:

Adjust parameter L AYERTHR;

Judge whether the telephone traffic that need to extrapolate community is greater than the telephone traffic of adjusting parameter L AYERTHR expection extrapolation;

The telephone traffic that need to extrapolate in community is greater than under the condition of the telephone traffic of adjusting parameter L AYERTHR expection extrapolation, adjusts parameters C RO;

Judge whether the telephone traffic that need to extrapolate community is greater than the summation of adjusting the telephone traffic of parameter L AYERTHR expection extrapolation and adjusting the telephone traffic of parameters C RO expection extrapolation;

The telephone traffic that need to extrapolate in community is greater than to be adjusted under the telephone traffic of parameter L AYERTHR expection extrapolation and the condition of the summation of the telephone traffic of adjustment parameters C RO expection extrapolation, adjusts parameter OFFSETP;

Judge whether the telephone traffic that need to extrapolate community is greater than telephone traffic, the telephone traffic of adjusting parameters C RO expection extrapolation and the summation of telephone traffic of adjusting parameter OFFSETP expection extrapolation of adjusting parameter L AYERTHR expection extrapolation;

The telephone traffic that need to extrapolate in community be greater than adjust parameter L AYERTHR expection extrapolation telephone traffic, adjust parameters C RO expection extrapolation telephone traffic with adjust under the condition of summation of telephone traffic of parameter OFFSETP expection extrapolation, adjust B parameter SPWRB/BSPWRT/BSPWR/BSTXPWR.

The 4th kind of scheme: (cell channel resource utilization is (90%, 120%) under the condition of and min (channels of neighboring areas resource utilization) <70%, set the preferential adjacent area handoff threshold parameter of adjusting in described Equations of The Second Kind service parameter, then adjust the cell reselection parameters of the first community.

As shown in Figure 6, an instantiation is as follows:

Adjust parameter L AYERTHR;

Judge that descending TBF is created as power and whether is less than 90, and judge whether EDGE reusing degree is greater than 4;

Be created as power at descending TBF and be less than 90, and EDGE reusing degree is greater than under 4 condition, adjust parameter ODPDCHLIMIT;

Be created as power at descending TBF and be less than 90, and EDGE reusing degree is greater than under 4 condition, adjust parameters C RH.

As shown in figure 13, its bend represents that community number of available channels is 28,21,13,6 from top to bottom successively, in the time that channel resource utilance is less than 70%, all can there be enough channel reply business readjustments the community of various configurations, so channel resource utilance is less than to 70% boundary as the first community readjustment business (when adjusting the service parameter of the first community, while being less than 70% to the channel resource utilance of the first community, by the service parameter readjustment of the first community, realize service parameter and reduce with absorption business).So set underload scene condition:

(channel resource utilance <70%) and (perceiving congestion=0)

Adjustment scheme under underload scene condition is: under the condition of (channel resource utilance <70%) and (perceiving congestion=0), set and adjust described first kind service parameter and Equations of The Second Kind service parameter, value before the balanced adjustment of the business of progressively recovering, to make described the first community absorb traffic carrying capacity, realize the equilibrium of described the first Zone.

As shown in Figure 7, an instantiation is as follows:

Judge whether LAYER is adjusted to acquiescence stencil value;

Be adjusted at LAYER under the condition of acquiescence stencil value, judge whether ACCMIN is adjusted to acquiescence stencil value;

Be adjusted at ACCMIN under the condition of acquiescence stencil value, judge whether ODPDCHLIMIT is adjusted to acquiescence stencil value;

Be adjusted at ODPDCHLIMIT under the condition of acquiescence stencil value, judge whether BSPWRB/BSPWRT/BSPWR/BSTXPWR is adjusted to acquiescence stencil value;

Be adjusted at BSPWRB/BSPWRT/BSPWR/BSTXPWR under the condition of acquiescence stencil value, judge whether OFFSETP is adjusted to acquiescence stencil value;

Be adjusted at OFFSETP under the condition of acquiescence stencil value, judge whether CRO/PT is adjusted to maximum;

Be adjusted under peaked condition at CRO/PT, judge whether LAYERTHR is adjusted to maximum;

LAYERTHR is adjusted to maximum, and underload processing finishes.

As from the foregoing, under high load scenarios condition for adjusting the first scheme, first scheme, the third scheme of Zone equilibrium, the Congestion Level SPCC of the 4th kind of corresponding community of scheme reduces gradually, so in order effectively to carry out Zone equilibrium, under high load scenarios condition, the priority orders of the balanced adjustment scheme of Zone is as follows: the first scheme, first scheme, the third scheme, the 4th kind of scheme.

As shown in Figure 8, in the present embodiment, under the unbalanced state of the first Zone, the flow process of the service parameter of adjustment the first community is as follows:

Judge that whether described the first community is in higher load condition;

Not during in higher load condition in described the first community, judge that whether described the first community is in low load condition;

In described the first community during in low load condition, select underload scene to adjust the business equilibrium of the first community described in project setting;

Under condition in described the first community in higher load condition, judge whether community in described set of cells meets corresponding first pre-conditioned of described the first scheme for adjusting described the first Zone equilibrium, described pre-conditioned be (the first cell channel resource utilization >120%or perceiving congestion rate >=2%) andmin (channels of neighboring areas resource utilization) >70%;

In set of cells, community meets under described the first pre-conditioned condition, selects the first Zone equilibrium described in described the first project setting;

In set of cells, community does not meet under described the first pre-conditioned condition, judge whether community in set of cells meets corresponding second pre-conditioned of described first scheme for adjusting described the first Zone equilibrium, described second pre-conditioned: (the first cell channel resource utilization >=150%or perceiving congestion rate >=2%) and min (channels of neighboring areas resource utilization) <70%;

In set of cells, community meets under described the second pre-conditioned condition, selects described first scheme to adjust described the first Zone equilibrium;

Do not meet under described the second pre-conditioned condition in described the first community, judge whether community in set of cells meets corresponding the 3rd pre-conditioned of described the third scheme for adjusting described the first Zone equilibrium, described the 3rd pre-conditioned: the first cell channel resource utilization is at (120%, 150%) andmin (channels of neighboring areas resource utilization) <70%;

In set of cells, community meets under described the 3rd pre-conditioned condition, selects the first Zone equilibrium described in described the third project setting;

In set of cells, community does not meet under described the 3rd pre-conditioned condition, judge whether community in set of cells meets corresponding the 4th pre-conditioned of described the 4th kind of scheme for adjusting described the first Zone equilibrium, described the 4th pre-conditioned be that cell channel resource utilization is at (90%, 120%) and min (channels of neighboring areas resource utilization) <70%;

In set of cells, community meets under described the 4th pre-conditioned condition, selects the first Zone equilibrium described in described the 4th kind of project setting.

The balanced scheme of adjusting of the first Zone is not limited to the above, and the priority orders of adjusting service parameter is also not limited to the above, equally, adjust the quantity of service parameter be also not limited to above shown in, in a word, the setting of the balanced adjustment scheme of above the first Zone, is only several specific embodiments in the balanced adjustment scheme of business of the present invention, and the balanced adjustment scheme of business of the present invention is not limited to this.

In the present embodiment, if by one or more in above-mentioned adjustment scheme, the traffic load of the first community, still in non-equilibrium state, can further be optimized by network configuration optimization means such as carrier wave adjustment, coverage optimizations.The mode of carrying out network hardware adjustment optimization community is exemplified below:

A, carrier frequency expand and subtract appearance: according to the cell business volume peak value of a period of time, the carrier frequency capacity requirement of assessment community, carries out carrier frequency and the expansion of corresponding corollary equipment subtracts appearance.

B, antenna direction adjustment: by the adjustment of antenna cover direction, the coverage of balanced peripheral cell and traffic carrying capacity.

C, antenna downtilt adjustment: by the adjustment of Downtilt, control the coverage of community and suppressed covering, thereby control the traffic carrying capacity of community.

D, antenna height adjustment: by adjusting the suspension height of antenna, control the coverage of community, thereby control the traffic carrying capacity of community.

The antenna of E, replacing different performance parameter: change the antenna of appropriate antenna gain, half-power angle, control the coverage of community, thereby control the traffic carrying capacity of community.

F, build new base station: share the traffic carrying capacity of high traffic load community by building double frequency base station, common location, indoor distributed system, new site.

Below by the first community " Y61BDZC " being carried out to the balanced assessment of business and business equilibrium flow performing, business equalization methods in wireless network set of cells of the present invention is described:

(1) incidence coefficient of minizone calculates

Incidence coefficient calculates:

Incidence coefficient F _si=TIMES/REPARFCN, wherein TIMES represents the measurement report number that adjacent cell occurs as the last six adjacent area, REPARFCN be illustrated in adjacent area dominant frequency measured during the overall measurement number of reports that reports of Serving cell.

Measurement data compute associations coefficient in being measured by NCS is as following table:

Set up set of cells:

In the present embodiment, in set of cells, adjacent area quantity is set to 10, according to adjacent area selected condition:

A: busy business is switched number >0;

B: the last six cell measurement ratio >1%;

C: press incidence coefficient descending sort top 10;

Neighboring Cell List in set of cells is as follows:

By incidence coefficient normalization, obtain the covering relevance parameter of i adjacent area in described set of cells:

(2) the channel resource utilance of community is calculated

Standardization voice traffic channel demand number carries out ERLANG B inquiry by 2% the percent of call lost, and data traffic channels demand number calculates by 90% target P DCH utilance.

The first business balance parameters of (3) first communities calculates

Denominator during the business balance parameters of the first community calculates is the comprehensive normalization weighting cell channel resource utilization (the normalization weighting cell channel resource utilization summation of each adjacent area) in adjacent area in set of cells

As seen from the above table, the business balance parameters Es of the first community is 1.34, is greater than 1, the first community and needs outer push service.

(4) in set of cells, the 3rd business balance parameters calculates

If only select push service and an adjacent area absorption business outside an adjacent area in the business balancing procedure of minizone, [Y61BDZC, Y61BDZ2] the 3rd business equilibrium degree Esi negative value sequence minimum, [Y61BDZC, Y61BDZ1] the 3rd business equilibrium degree Esi maximum on the occasion of sequence, enter to elect as the adjacent area of the business equilibrium of minizone.If according to " traffic of initiatively extrapolating, Passive intake traffic, in good time readjustment " strategy, only selection [Y61BDZC, Y61BDZ2] this to the neighboring BS relationship traffic of extrapolating.

(5) the balanced service parameter adjustment amount of business calculates

The channel resource utilance Rs of the first community is 133.91%, the comprehensive normalization weighting cell channel resource utilization 99.72% in adjacent area of the first community, so when the channel resource utilance Rs of the first community decline 34.19% just can be in relative equilibrium state, in the situation that the first community number of available channels is 54, the channel occupancy of corresponding overload is 18.46; By corresponding 16.61 equalizing traffic W of 0.9 every line telephone traffic assessment.

Can further be promoted to 30% if set maximum half speed thresholding DTHAMR/DTHNAMR allowing in the balanced flow process of the first Zone, minimum dynamic data business thresholding ODPDCHLIMIT can further drop to 60%; Suppose that it is 25% that current area has arranged half rate thresholding, dynamic data traffic gate is limited to 65%, and the first community can increase the channel capacity of (5%+5%) * 54=5.4 by service parameter adjustment so.

The balanced extrapolation telephone traffic that needs of the first Zone, reduce the channel occupancy 13.06 of overload, by 0.9 every line telephone traffic assessment corresponding 11.75 equivalent telephone traffic (voice portfolio+data service busy channel) be equalizing traffic, the balanced traffic ratio of need be:

The level allowing if set changes and is no more than 2dB, so according to " signal level difference with relation table " apart from difference known level difference value be-corresponding covering variation ratio is (89%-1) when 2dB, 11% the balanced telephone traffic of can extrapolating.

As shown in the table, be no more than 2dB if set the adjacent area boundary shifts allowing, measure statistics according to NCS and MRR, adjust 5.64% the telephone traffic of can extrapolating when adjacent area boundary shifts OFFSET is 2dB.

In example, about the setting of the service parameter adjustment amount of business equilibrium is to avoid crossing and significantly adjusting so that affect other performances of network in an adjustment cycle in optimizing and revising, can arrange according to real network situation.

(6) the balanced adjustment scheme of inter-cell traffic is carried out

Adjust Scheme Choice:

From the business equilibrium degree Es of the community of community Y61BDZC, in set of cells, the unbalanced community of business need to be optimized and revised; Channel utilization Rs, higher than 120%, is high load capacity community; If now perceiving congestion is greater than 2%, carry out first scheme, if being less than 2%, perceiving congestion carries out the third scheme.Below carry out respectively first scheme example and the third scheme example.

First scheme:

A: according to above-mentioned setting, half rate thresholding DTHAMR/DTHNAMR can adjust to 30% by 25% maximum, telephone traffic 54* (30%-25%) the * 0.9=2.43 that now expection absorbs, residue extrapolation telephone traffic is 16.61-2.43=14.18.

B: dynamic data business thresholding ODPDCHLIMIT can adjust to 60% by 65% time, telephone traffic 54* (65%-60%) the * 0.9=2.43 that now expection absorbs, residue extrapolation telephone traffic is 14.18-2.43=11.75.

C: adjust layer thresholding LAYERTHR by-72dB to-70dB, the covering of contractions-2dB, now expection extrapolation telephone traffic is 62.19* (89%-1)=6.84, the residue telephone traffic of extrapolating is 11.75-6.84=4.91.

D: adjust layer thresholding CRO, the covering of contraction-2dB, now expection extrapolation telephone traffic is 62.19* (89%-1)=6.84, residue extrapolation telephone traffic is 4.91-6.84=-1.93<0, finishes to adjust flow process.

The third scheme:

A: adjust layer thresholding LAYERTHR by-72dB to-70dB, the covering of contractions-2dB, now expection extrapolation telephone traffic is 62.19* (89%-1)=6.84, the residue telephone traffic of extrapolating is 16.61-6.84=9.77.

B: adjust layer thresholding CRO, the covering of contraction-2dB, now expection extrapolation telephone traffic is 62.19* (89%-1)=6.84, residue extrapolation telephone traffic is 9.77-6.84=2.93.

C: adjust neighboring BS relationship [Y61BDZC, Y61BDZ2] biasing OFFSET, Y61BDZC shrinks adjacent area border-2dB, now expection extrapolation telephone traffic is 62.19*5.64%=3.51, residue extrapolation telephone traffic is 2.93-3.51=-0.58<0, finishes to adjust flow process.

In the present embodiment, can specifically comprise following several for the service parameter of adjusting Zone equilibrium in set of cells:

Business balance parameters in community mainly contains following parameter:

DTHAMR: the dynamic half-rate channel HR for the MS that supports AMR coding distributes thresholding.The ratio of the non-inaccessible Traffic Channel that can use when idle traffic channel full rate FRYu community is lower than this thresholding, to supporting the half rate AMR-HR of MS priority allocation community of AMR coding.This setting parameter the triggering thresholding of AMR-HR priority allocation.

DTHNAMR: for not supporting AMR coding but support the dynamic half-rate channel HR of the MS of dual rate to distribute thresholding.The ratio of the non-inaccessible Traffic Channel that can use when idle traffic channel full rate FRYu community is lower than this thresholding, to not supporting the half rate HR of MS priority allocation community of AMR coding.This setting parameter the triggering thresholding of HR priority allocation.

ODPDCHLIMIT: the dynamic data Traffic Channel ODPDCH ratio restriction of channel group.In indicating channel group, can distribute the ratio that becomes the traffic channel full rate of ODPDCH channel and account for all non-inaccessible Traffic Channels in channel group, this parameter limit the quantity of ODPDCH channel.

TBFDLLIMIT: when the downlink temporary block stream TBF number coexisting on the current average every data traffic channels PDCH in community exceedes this thresholding, monthly dynamics data traffic channels ODPDCH will be attempted in community, attempt unsuccessfully if distribute, descending TBF will continue to be dispensed on the PDCH channel of having deposited until produce congested.This parameter is the thresholding that new ODPDCH channel is distributed in triggering cell.

TBFULLIMIT: when the temporary up-link block flow TBF number coexisting on the current average every data traffic channels PDCH in community exceedes this thresholding, monthly dynamics data traffic channels ODPDCH will be attempted in community, attempt unsuccessfully if distribute, up TBF will continue to be dispensed on the PDCH channel of having deposited until produce congested.This parameter is the thresholding that new ODPDCH channel is distributed in triggering cell.

PDCHPREEMPT: defined to produce because voice traffic channel is required and empty in advance strategy when dynamic data Traffic Channel ODPDCH is emptied in advance, had eight kinds of strategies.This setting parameter in emptying in advance the strategy to ODPDCH protection.

0 represents that all ODPDCH channels can empty in advance.

1 represents can empty in advance except the ODPDCH channel as dual transfer mode DTM business.

2 represent can empty in advance except the ODPDCH channel as flow data business.

3 represent except emptying in advance as the ODPDCH channel of dual transfer mode DTM business and flow data business.

4 represent except emptying in advance as the essential ODPDCH channel of carrying synchronizing function.

5 represent except emptying in advance as the carrying essential ODPDCH of synchronizing function and the ODDPCH channel of dual transfer mode DTM business.

6 represent except emptying in advance as the carrying essential ODPDCH of synchronizing function and the ODDPCH channel of flow data business.

7 represent can empty in advance except the ODDPCH channel of the essential ODPDCH as carrying synchronizing function, dual transfer mode DTM business, flow data business.

8 represent that only available free ODPDCH channel can empty in advance.

GPRSPRIO: this parameter is controlled at the dynamic PDCH that can empty in advance in the channel assessment procedure of the function such as dynamic half rate distribution, cell load sharing, sub cell load sharing, GSM-UMTS cell reselection and switching, BTS economize on electricity and whether is regarded as idle channel, has 32 kinds of combinations.Channel estimating and ODPDCH that this setting parameter affects above-mentioned functions empty in advance.

And the business balance parameters of following minizone:

BSPWRB: the transmitting power of base station dominant frequency carrier wave.This setting parameter is related to the signal cover of community.

BSPWRT: the transmitting power of the non-dominant frequency carrier wave in base station.This setting parameter is related to the signal cover of community.

ACCMIN: the minimum incoming level thresholding of mobile station MS access gsm system.This setting parameter is related to the Service coverage under the idle pulley of community.

CRO: cell reselection biasing.This parameter is given signal biasing to cell reselection weight in cell reselection decision rule under idle pulley, wherein in the time of PT=31 CRO act as negative bias.

PT: punishment duration.This setting parameter under idle pulley, in cell reselection decision rule, cell reselection weight is given the duration of interim signal punishment, wherein in the time of PT=31, make the negative bias that act as of CRO.

CRH: cell reselection magnetic hysteresis.This setting parameter under GSM idle pulley the signal magnetic hysteresis at the cell reselection on border, lane place in cell reselection decision rule, but in GPRS, all cell reselections are all worked.

BSPWR: the Effective Radiated Power of base station dominant frequency channel.This setting parameter under enable mode for the Effective Radiated Power of the location algorithm reference point of switch decision, affect the calculating that path loss is relevant.

BSTXPWR: the Effective Radiated Power of the non-dominant frequency channel in base station.This setting parameter under enable mode for the Effective Radiated Power of the location algorithm reference point of switch decision, affect the calculating that path loss is relevant.

LAYER: cell layer.In the switch decision of location algorithm, Hierarchical Cell Structure function is given different priority to belonging to Ceng community, different districts meeting under certain signal conditioning, and the priority of layer 1 is the highest.

LAYERTHR: cell layer thresholding.Community has the required satisfied signal strength threshold of priority of cell layer, affects the coverage of the priority of cell layer.

The signal bias of KOFFSET:K algorithm.In location algorithm, adopt Ericsson's 1 algorithm to carry out the signal strength signal intensity bias of arranging by signal strength signal intensity while queuing substantially in adjacent area, affect the handoff boundary of two neighbor cells, have both positive and negative biasing.

OFFSET: the signal bias of Ericsson's 3 algorithms.In location algorithm, adopt Ericsson's 3 algorithms to carry out adjacent area signal strength signal intensity bias while substantially queuing up, affect the handoff boundary of two neighbor cells, have both positive and negative biasing.

Along with increasing rapidly of network traffic, a large amount of carrier frequency dilatations and base station construction make network capacity obtain the growth of extensive style, but on region and on the time, still exist more unbalancedly, make network capacity fail to make full use of.For making network capacity reasonable disposition, must change traditional community static capacity configuration, change according to bunch (set of cells) interior service distribution, by bunch in the dynamic capacity equilibrium of minizone, make the traffic carrying capacity in whole region obtain abundant equilibrium on region He on the time, thereby improve the radio network information channel utilization of resources.For effectively carrying out the business equilibrium of minizone, the present invention proposes the balanced appraisal procedure of business in set of cells, unify, reasonably assess business relative equilibrium situation and business equilibrium direction in set of cells; The measurement method of adjusting by business balance parameters, standard parameter adjustment; Set up different business equalization scheme according to different congestion level, specific aim is implemented different business balance optimizing combined measures, Zone is transshipped to part reasonable diffluence to other communities, thereby make full use of the Radio Resource of whole net, better ensure that traffic carrying capacity absorbs and user awareness.This appraisal procedure application simultaneously can be implemented by software systems, has reached in real time, and effect of optimization efficiently, has solved in conventional art human resources limited, and enforcement means are more subjective, the shortcoming that optimization cycle is long.

Described selection module is specifically for the community of the predetermined number that goes out according to incidence coefficient selective sequential from big to small, the incidence coefficient of the first adjacent area is the ratio of the first numerical value and second value, wherein, the first numerical value is the number of times that dominant frequency corresponding to the first adjacent area occurs in measurement report set, second value be described the first community report the first adjacent area dominant frequency is measured time overall measurement number of reports.

Described the first business balance parameters E _sas follows:

E_{S} = \frac{R_{S}}{Σ_{i} (R_{i} \times {F^{'}}_{si})}

Described service parameter comprises:

Corresponding to different congestion level, different service parameters has different priority, and the balanced adjusting module of described business is for adjusting described service parameter according to the service parameter priority corresponding with current congestion grade order from big to small.

The balanced adjusting module of described business also for the service parameter by adjusting the first community to all adjacent areas transmission service in described set of cells, wherein, the first business balance parameters of described the first community is greater than a business balance parameters thresholding, or

Absorb business by the service parameter of adjusting the first community to all adjacent areas in described set of cells, wherein, the first business balance parameters of described the first community is less than described business balance parameters thresholding, or

The above is preferred embodiment of the present invention, it should be pointed out that to those skilled in the art, not departing under the prerequisite of principle of the present invention, can also make some improvements and modifications, and these improvements and modifications also should be considered as protection range of the present invention.

Claims

1. a business equalization methods in wireless network set of cells, is characterized in that, comprises the following steps:

2. business equalization methods in wireless network set of cells according to claim 1, is characterized in that, selects part or all of community to be specially from the adjacent area of the first community:

The community of the predetermined number going out according to incidence coefficient selective sequential from big to small, the incidence coefficient of the first adjacent area is the ratio of the first numerical value and second value, wherein, the first numerical value is the number of times that dominant frequency corresponding to the first adjacent area occurs in measurement report set, second value be described the first community report the first adjacent area dominant frequency is measured time overall measurement number of reports.

3. business equalization methods in wireless network set of cells according to claim 2, it is characterized in that, calculate the first business balance parameters E of the first community with respect to described set of cells according to the covering relevance of the resource utilization of described set of cells small area and community _sas follows:

E_{S} = \frac{R_{S}}{Σ_{i} (R_{i} \times {F^{'}}_{si})}

Wherein, R _srepresent described the first cell channel resource utilization, R _irepresent the channel resource utilance of i adjacent area of described the first community, F' _sirepresent the covering relevance parameter of i adjacent area in described set of cells, for the incidence coefficient of all adjacent areas in the incidence coefficient of described i adjacent area and set of cells and ratio.

4. business equalization methods in wireless network set of cells according to claim 1, is characterized in that, described service parameter comprises:

5. business equalization methods in wireless network set of cells according to claim 4, it is characterized in that, described Equations of The Second Kind service parameter comprises: the adjacent area handoff threshold parameter of described the first community and/or frequency power parameter and/or the cell reselection parameters of described the first community.

6. business equalization methods in wireless network set of cells according to claim 1, it is characterized in that, corresponding to different congestion level, different service parameters has different priority, the business balance parameters of described the first community of described foundation is adjusted in the step of service parameter of the first community, adjusts described service parameter according to the service parameter priority corresponding with current congestion grade order from big to small.

7. business equalization methods in wireless network set of cells according to claim 6, it is characterized in that, corresponding to different congestion level, the predeterminable different adjusting range of each service parameter, the traffic carrying capacity of calculating described the first community extrapolation after a service parameter adjustment or absorbing, judges whether described the first community accumulative total extrapolation after this service parameter adjustment or the traffic carrying capacity absorbing are less than the traffic carrying capacity that described the first community need to extrapolate or absorb;

8. business equalization methods in wireless network set of cells according to claim 1, it is characterized in that, business balance parameters according to described the first community is adjusted in the step of service parameter of the first community, service parameter by adjusting the first community is to all adjacent areas transmission service in described set of cells, wherein, the first business balance parameters of described the first community is greater than a business balance parameters thresholding, or

9. business equalization methods in wireless network set of cells according to claim 1, is characterized in that, adjust in the step of service parameter of the first community according to the business balance parameters of described the first community,

10. business equalization methods in wireless network set of cells according to claim 9, is characterized in that,

According to described the first community with respect to the second community described in the selective sequential from big to small of the absolute value of the 3rd business balance parameters of i adjacent area in described set of cells, described the 3rd business balance parameters is the covering relevance parameter of i adjacent area and the product of the first numerical value in described set of cells, the difference of the channel resource utilance that described the first numerical value is described i adjacent area and the resource utilization of described the first community.

Business balancer in 11. 1 kinds of wireless network set of cells, is characterized in that, comprising:

Business balancer in 12. wireless network set of cells according to claim 11, it is characterized in that, described selection module is specifically for the community of the predetermined number that goes out according to incidence coefficient selective sequential from big to small, the incidence coefficient of the first adjacent area is the ratio of the first numerical value and second value, wherein, the first numerical value is the number of times that dominant frequency corresponding to the first adjacent area occurs in measurement report set, second value be described the first community report the first adjacent area dominant frequency is measured time overall measurement number of reports.

Business balancer in 13. wireless network set of cells according to claim 11, is characterized in that described the first business balance parameters E _sas follows:

E_{S} = \frac{R_{S}}{Σ_{i} (R_{i} \times {F^{'}}_{si})}

Business balancer in 14. wireless network set of cells according to claim 11, is characterized in that, described service parameter comprises:

Business balancer in 15. wireless network set of cells according to claim 14, it is characterized in that, described Equations of The Second Kind service parameter comprises: the adjacent area handoff threshold parameter of described the first community and/or frequency power parameter and/or the cell reselection parameters of described the first community.

Business balancer in 16. wireless network set of cells according to claim 11, it is characterized in that, corresponding to different congestion level, different service parameters has different priority, and the balanced adjusting module of described business is for adjusting described service parameter according to the service parameter priority corresponding with current congestion grade order from big to small.

Business balancer in 17. wireless network set of cells according to claim 11, it is characterized in that, the balanced adjusting module of described business also for the service parameter by adjusting the first community to all adjacent areas transmission service in described set of cells, wherein, the first business balance parameters of described the first community is greater than a business balance parameters thresholding, or

Business balancer in 18. wireless network set of cells according to claim 11, it is characterized in that, also the second community transmission service to the adjacent area of selecting for the service parameter by adjusting the first community of the balanced adjusting module of described business, wherein, the channel resource utilance of described the second community is less than the channel resource utilance of described the first community, or

Business balancer in 19. wireless network set of cells according to claim 18, is characterized in that,