CN102223645B

CN102223645B - Interference coordination self-optimizing method of cellular mobile communication system

Info

Publication number: CN102223645B
Application number: CN201110144587.XA
Authority: CN
Inventors: 彭木根; 李雪娜; 王文博
Original assignee: Beijing University of Posts and Telecommunications
Current assignee: Tyco Systems Dongguan Technology Co ltd
Priority date: 2011-05-31
Filing date: 2011-05-31
Publication date: 2014-04-16
Anticipated expiration: 2031-05-31
Also published as: CN102223645A

Abstract

The invention discloses an interference coordination self-optimizing method of a cellular mobile communication system. By using a technical scheme provided by the invention, a base station firstly determines an interference coordination scheme used currently by a cell while selecting corresponding interference coordination schemes for the cell, and optimizes parameters of the current interference coordination scheme according to the difference between a target value and a measured value of interference state information of cell edge/center; when a preset target still cannot be satisfied after optimizing the parameters, the base station converts the interference coordination schemes, thereby selecting the appropriate interference coordination scheme for the cell according to the current system conditions and balancing the effectiveness and the reliability of the system interference coordination performance, so that comprehensive performance of the system is improved, and wasting of system resources is avoided.

Description

A kind of interference coordination self-organization method of cell mobile communication systems

Technical field

The present invention relates to communication technical field, relate in particular to a kind of interference coordination self-organization method of cell mobile communication systems.

Background technology

Interference is a key factor that affects systematic function in communication system.With OFDM(Orthogonal Frequency Division Multiplexing, OFDM) technology is basic LTE(Long Term Evolution, Long Term Evolution) in system, because inside, community same orthogonal resource piece of strict restriction (time, frequency, space three-dimensional) when carrying out resource distribution is to distribute to a plurality of users simultaneously, therefore in inside, community, be, to exist hardly common road to disturb.

But along with the development of the communication technology, in order to pursue the higher availability of frequency spectrum, identical networking becomes of LTE system and pursues a goal.Under identical networking scene, identical frequency resource is all reused in communities all in network, although can guarantee the higher availability of frequency spectrum of center of housing estate by space isolation characteristic like this, Cell Edge User but must be stood very serious presence of intercell interference.

According to the change frequency of interference coordination strategy and the cycle of cell-to-cell information interaction, in existing technical scheme, interference coordination technique can be divided into following three classes:

(1) static interference is coordinated.

By the method for pre-configured or the network planning, limit scheduling of resource and the allocation strategy of each community, avoid the interference of minizone.Typical partial frequency multiplexing be by system can with frequency resource divide the several parts that are orthogonal (being conventionally divided into three parts), then, edge customer for adjacent community can only be used mutually orthogonal frequency resource, and other resource that central user can be used edge customer not use, but, must be reduced in the power level in these frequency resources.

It should be noted that partial frequency multiplexing must combine with power control, otherwise there is no effect.

As shown in Figure 1, using community 1 as with reference to community, can find out after carrying out partial frequency multiplexing, the frequency resource power using in central area due to community 2 to 7 is lower, so the presence of intercell interference that the edge customer of community 1 is subject to is less.Meanwhile,, therefore, there is not interference between the two in the frequency resource quadrature due to the frequency resources of community 2 to 7 edge region uses and the edge customer use of community 1.

(2) coordinating semi-static interference.

Minizone is the information such as user power information, cell load information, resource allocation information, interfere information in mutual community at a slow speed.Community utilizes these information, and coordinated resource allocation and power division reach the object of interference coordination.The cycle of its information interaction and action is generally a few tens of milliseconds to hundreds of millisecond.In LTE standard, support coordinating semi-static interference scheduling, defined up-downgoing indication information.

Uplink load information mainly comprises: HII(High Interference Indicator, high interference indication) and OI(Overload Indicator, excess load indication).

HII indicates following a period of time of this community will distribute which PRB(Physical Resource Block, Physical Resource Block) to edge customer, adjacent cell avoids using these resources, 1bit/PRB when scheduling edge customer as far as possible.OI indicates the disturbed condition on each PRB of this community, is divided into high, medium and low Three Estate, and adjacent cell is received and on corresponding PRB, carried out interference power adjustment after this indication and user dispatches adjustment.

Down load information spinner will comprise: RNTP(Relative Narrowband TX Power, relative arrowband transmitted power), be used to refer to the downlink transmission power grade on the PRB of this community, which PRB is notice adjacent cell send with high power, adjacent cell is at scheduling edge UE(User Equipment, subscriber equipment, i.e. terminal equipment) time avoid using these PRB as far as possible.

(3) dynamic interference coordination.

Minizone is carried out coordinated scheduling real-time dynamicly, reduces the method for presence of intercell interference.In LTE by CoMP(Coordinated Multiple Points, coordinate multipoint) realize dynamic interference coordination.The cycle of dynamic interference coordination is millisecond magnitude, requires the real-time information interaction in minizone, and the time of resource coordination is conventionally with TTI(Transmission Time Interval, Transmission Time Interval) be unit.The typical time delay of X2 interface is 10-20ms, and therefore, between different base station, dynamic interference coordination completely cannot be realized in community.Dynamic interference coordination is more between the different sectors for same base station.At current 3GPP(ThirdGeneration Partnership Project, 3G (Third Generation) Moblie partner plan) the CoMP CoMP of index certificate only in, be PDSCH(Physical Downlink Shared Channel, Physical Downlink Shared Channel) in, the information of transmission is at the CoMP of a plurality of transmission nodes, PDCCH(Physical Downlink Control Channel, Physical Downlink Control Channel) in, the control information of transmission is not carried out CoMP by the Serving cell eNode B(evolved base station at terminal place) transmit separately.According to data message, whether the information of transmitting in PDSCH is shared between a plurality of transmission nodes, and descending CoMP technology can be divided into two classes:

The first kind, Combined Treatment technology, the data message that will transmit is shared between each transmission node of CoMP cooperation collection.

Equations of The Second Kind, coordinated scheduling/wave beam forming technology, the data message that will transmit can only be sent by the eNode B at place, Serving cell, how to dispatch and how to carry out wave beam forming by a plurality of transmission nodes are common, to determine.

By the contrast of above various interference coordination technique, can find out the difference of three kinds of schemes to the requirement of base station information interaction ability and interference coordination ability, applied scene is difference to some extent also.For static interference, coordinate, be mainly used in interference not serious, traffic carrying capacity changes under inviolent scene; For coordinating semi-static interference, require to carry out information interaction between base station, adjust the parameter of interference coordination, can effectively suppress presence of intercell interference, improve cell edge throughput; For dynamic interference coordination, require minizone to carry out real-time information interaction, cooperation in Intra-siteCoMP(multipoint cooperative website) occur in a website, now because quantitative limitation is held in passback, can be in a plurality of minizones of same website mutual a large amount of information.Between Inter-siteCoMP(multipoint cooperative website, cooperate) occur between a plurality of websites, passback capacity and time delay have been proposed to requirements at the higher level, therefore, for dynamic interference coordination, be mainly used in and suppress the interference between different sectors in same community.

In realizing process of the present invention, inventor finds at least to exist in prior art following problem:

For three kinds of above-mentioned interference coordination modes, different in the situation that, and quality is also had nothing in common with each other:

From the performance of interference coordination, dynamic interference coordination can obtain maximum performance gain, and the performance that static interference is coordinated is the poorest.

From the complexity of technical scheme, the complexity that static interference is coordinated is minimum, applies also easyly, and the complexity of dynamic interference coordination is the highest, also the highest to the requirement of the capacity of back haul link and delay.

Therefore, how in LTE system, for different interference strengths, to select different technical schemes to reach most important for the balance between interference coordination performance gain and enforcement complexity, avoiding still adopting when environment is better interference coordination schemes that complexity is higher to cause just becomes a problem in the urgent need to address to the situation of system resource waste, but in currently available technology, does not propose automatically to select the scheme of interference coordination technique.

Summary of the invention

The embodiment of the present invention provides a kind of interference coordination self-organization method of cell mobile communication systems, thereby, can be that suitable interference coordination schemes is selected in corresponding community according to current system situation.

In order to achieve the above object, the embodiment of the present invention provides a kind of interference coordination self-organization method of cell mobile communication systems, and the method at least comprises the following steps:

The edge of statistics community, base station and the disturbance state information at center, wherein, described disturbance state information comprises average throughput and frame error rate;

The interference coordination schemes that described community is current is confirmed in described base station, and according to the relation between the desired value of the disturbance state information at the edge of the current described community counting on and center and default corresponding every disturbance state information, the interference coordination schemes that described community is current is carried out to parameter adjustment, wherein, the interference coordination schemes that described community can be applied specifically comprises static interference coordination, coordinating semi-static interference and dynamic interference coordination;

When the disturbance state information after described parameter adjustment reaches the switch condition of default interference coordination schemes, interference coordination schemes conversion is carried out to described community in described base station;

When the disturbance state information after the disturbance state information after described parameter adjustment or the conversion of described interference coordination schemes reaches the desired value of described default corresponding every disturbance state information, described base station completes the optimization to the interference coordination schemes of described community.

Preferably, before the edge of statistics community, described base station and the disturbance state information at center, also comprise:

Base station is arranged to the disturbance state information measurement cycle of community;

The loading condition current according to each community, the distribution of customer service type and traffic carrying capacity, described base station arranges the desired value of the edge of community and every disturbance state information at center, the average throughput desired value and the frame error rate desired value that specifically comprise the edge of described community, and the average throughput desired value at the center of described community and frame error rate desired value.

Preferably, the interference coordination schemes that described community is current is confirmed in described base station, and according to the relation between the desired value of the disturbance state information at the edge of the current described community counting on and center and default corresponding every disturbance state information, the interference coordination schemes that described community is current is carried out to parameter adjustment, specifically comprises:

Described base station confirms that the current interference coordination schemes in described community is static interference coordination, coordinating semi-static interference or dynamic interference coordination;

When the desired value that has at least one item not reach default corresponding disturbance state information in the edge of the current described community counting on and every disturbance state information at center is determined in described base station, described base station increases the parameter of the current interference coordination schemes in described community, when described base station determines that the edge of the current described community counting on and every disturbance state information at center have all reached the desired value of default corresponding every disturbance state information, described base station reduces the parameter of the current interference coordination schemes in described community.

Preferably, when the disturbance state information after described parameter adjustment reaches the switch condition of default interference coordination schemes, interference coordination schemes conversion is carried out to described community in described base station, specifically comprises:

When described base station, confirming the current interference coordination schemes in described community is static interference universal time coordinated, if every disturbance state information at the edge of described community and center does not all reach the desired value of described default corresponding every disturbance state information, coordinating semi-static interference is triggered to described community in described base station;

When described base station confirms that the current interference coordination schemes in described community is coordinating semi-static interference, if every disturbance state information at the edge of described community and center does not all reach the desired value of described default corresponding every disturbance state information, and the parameter adjusted of described coordinating semi-static interference is to maximum, and dynamic interference coordination is triggered to described community in described base station;

When described base station confirms that the current interference coordination schemes in described community is dynamic interference coordination, if every disturbance state information at the edge of described community and center all reaches the desired value of described default corresponding every disturbance state information, and the parameter adjusted of described dynamic interference coordination is to minimum value, described base station stops dynamic interference coordination to described community, and trigger coordinating semi-static interference, and initial parameter is maximum;

When described base station confirms that the current interference coordination schemes in described community is coordinating semi-static interference, if every disturbance state information at the edge of described community and center all reaches the desired value of described default corresponding every disturbance state information, and the parameter adjusted of described coordinating semi-static interference is to minimum value, and described base station stops coordinating semi-static interference to described community.

Preferably, when the disturbance state information after described interference coordination schemes conversion does not reach the desired value of described default corresponding every disturbance state information, described base station stops the optimization to the interference coordination schemes of described community, and triggers the covering of described community or capacity optimization.

Preferably, before the edge of statistics community, described base station and the disturbance state information at center, also comprise that described base station arranges the optimization threshold value of the edge of community and every disturbance state information at center;

When the disturbance state information after the disturbance state information after described parameter adjustment or the conversion of described interference coordination schemes reaches the desired value of described default corresponding every disturbance state information, described base station completes the optimization to the interference coordination schemes of described community, specifically comprises:

When described base station, confirming the current interference coordination schemes in described community is static interference universal time coordinated, if every disturbance state information at the edge of described community and center all reaches the desired value of described default corresponding every disturbance state information, described base station completes the optimization to the interference coordination schemes of described community;

When described base station confirms that the current interference coordination schemes in described community is coordinating semi-static interference, if every disturbance state information at the edge of described community and center all reaches the desired value of described default corresponding every disturbance state information, and the difference between the desired value of every disturbance state information and corresponding every disturbance state information is less than described optimization threshold value, and described base station completes the optimization to the interference coordination schemes of described community;

When described base station confirms that the current interference coordination schemes in described community is dynamic interference coordination, if every disturbance state information at the edge of described community and center all reaches the desired value of described default every disturbance state information, and the difference between the desired value of every disturbance state information and corresponding every disturbance state information is less than described optimization threshold value, and described base station completes the optimization to the interference coordination schemes of described community.

Preferably, when the average throughput at the edge of the described community of described base station statistics is equal to or greater than the average throughput desired value at edge of default corresponding described community, described base station determines that the average throughput at the edge of described community reaches the average throughput desired value at the edge of corresponding described community, when the average throughput at the center of the described community of described base station statistics is equal to or greater than the average throughput desired value at center of default corresponding described community, described base station determines that the average throughput at the center of described community reaches the average throughput desired value at the edge of corresponding described community,

When the frame error rate at the edge of the described community of described base station statistics is equal to or less than the frame error rate desired value at edge of default corresponding described community, described base station determines that the frame error rate at the edge of described community reaches the frame error rate desired value at the edge of corresponding described community, when the frame error rate at the center of the described community of described base station statistics is equal to or less than the frame error rate desired value at center of default corresponding described community, described base station determines that the frame error rate at the center of described community reaches the frame error rate desired value at the center of corresponding described community.

Preferably, Wei Ge community, described base station arranges interference coordination schemes optimization time threshold;

When the optimization process of interference coordination schemes is carried out in described base station triggers Dui Yige community, described base station starts the interference coordination schemes Optimum Operation timing to described community;

The time of interference coordination schemes Optimum Operation being carried out in described community when described base station reaches described interference coordination schemes while optimizing time threshold, and the optimization to the interference coordination schemes of described community is finished in described base station.

Preferably, Wei Ge community, described base station arranges maximum continuous measurement number of times;

When described base station successfully counts on the edge of Yi Ge community and the disturbance state information at center, described base station adds 1 to the continuous measurement number of times of described community, when described base station does not successfully count on the disturbance state information at edge and the center of Yi Ge community, or the current interference coordination schemes generation parameter adjustment in described community, or while there is interference coordination schemes conversion in described community, the count results clear 0 of described base station to the continuous measurement number of times of described community;

When described base station determines that the count results of the continuous measurement number of times of described community reaches described maximum continuous measurement number of times, described base station completes the optimization to the interference coordination schemes of described community.

Preferably, Wei Ge community, described base station arranges maximum conversion times continuously;

When the current interference coordination schemes in Dui Yige community, described base station is changed, described base station adds 1 to the continuous conversion times of described community, when parameter adjustment is carried out to the current interference coordination schemes in described community in described base station, described base station is to the count results of the continuous conversion times of described community clear 0;

When described base station determines that the count results of the continuous conversion times of described community reaches the continuous conversion times of described maximum, described base station completes the optimization to the interference coordination schemes of described community.

Compared with prior art, in the present invention, at least have the following advantages:

By applying technical scheme proposed by the invention, when corresponding interference coordination schemes is selected in Wei community, base station, first determine current the adopted interference coordination schemes in this community, and according to the measured value of the disturbance state information at cell edge/center and the gap between desired value, current interference coordination schemes parameter is optimized, in the time of still can not meeting goal-selling after parameter optimization, carry out the conversion of interference coordination schemes, thereby, can be that suitable interference coordination schemes is selected in community according to current system situation, carry out the balance between system interference coordination performance validity and reliability, the combination property of raising system, avoided the waste of system resource.

Accompanying drawing explanation

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

Fig. 1 is the schematic diagram of partial frequency multiplexing in prior art;

Fig. 2 is coordinated multipoint transmission schematic diagram in prior art;

The interference coordination self-organization method flow chart of a kind of cell mobile communication systems that Fig. 3 provides for the embodiment of the present invention;

Fig. 4 is the interference coordination self-organization method of a kind of cell mobile communication systems of providing of the embodiment of the present invention schematic flow sheet in the optimizing process of an interference coordination schemes;

Fig. 5 is the schematic diagram of changing between disturbance coordinate scheme in the embodiment of the present invention;

Fig. 6 is the schematic flow sheet of the interference coordination self-organization method of the cell mobile communication systems in a kind of concrete application scenarios that provides of the embodiment of the present invention;

Fig. 7 is the schematic flow sheet of the interference coordination self-organization method of the cell mobile communication systems in a kind of concrete application scenarios that provides of the embodiment of the present invention;

Fig. 8 is the schematic flow sheet of the interference coordination self-organization method of the cell mobile communication systems in a kind of concrete application scenarios that provides of the embodiment of the present invention;

Fig. 9 is the schematic flow sheet of the interference coordination self-organization method of the cell mobile communication systems in a kind of concrete application scenarios that provides of the embodiment of the present invention.

Embodiment

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

As shown in Figure 3, the embodiment of the present invention provides a kind of interference coordination self-organization method of cell mobile communication systems, and the method at least comprises the following steps:

The edge of step S301, statistics community, base station and the disturbance state information at center.

Wherein, the disturbance state information at the edge of Yi Ge community and center comprises:

The average throughput at the edge of this community and frame error rate, and the average throughput at the center of this community and frame error rate.

Before this step, in order to guarantee the smooth realization of follow-up step, also need to comprise following setting process:

(1) base station is arranged to the disturbance state information measurement cycle of community.

Setting operation herein can be that other network equipments arrange in base station by concrete instruction; also can be the corresponding cycle allocation plan generating by strategy default in base station; or directly configure by manual operation, the variation of concrete allocation plan can't affect protection scope of the present invention.

It should be noted that, for the optimum results for interference coordination schemes is timely tested, the above-mentioned disturbance state information measurement cycle should combine with the optimization time of interference coordination schemes, to guarantee after an interference coordination schemes optimization completes, can get in time corresponding measurement result, optimum results is tested.

Certainly; in practical operation; also corresponding event trigger mechanism can be set; after an interference coordination schemes optimization (comprising follow-up parameter adjustment and scheme conversion) completes; carry out the measurement of corresponding disturbance state information, such variation does not affect protection scope of the present invention.

(2) loading condition current according to each community, the distribution of customer service type and traffic carrying capacity, base station arranges the desired value of the edge of community and every disturbance state information at center.

Wherein, corresponding with corresponding disturbance state information, in this step, the desired value of set every disturbance state information does not specifically comprise:

The average throughput desired value at the edge of this community and frame error rate desired value, and the average throughput desired value at the center of this community and frame error rate desired value.

According to the kind of concrete disturbance state information, change, its judgment rule that whether meets the desired value of corresponding every disturbance state information also can carry out corresponding adjustment, is described as follows:

When the average throughput at the edge of the described community of described base station statistics is equal to or greater than the average throughput desired value at edge of default corresponding described community, described base station determines that the average throughput at the edge of described community reaches the average throughput desired value at the edge of corresponding described community, when the average throughput at the center of the described community of described base station statistics is equal to or greater than the average throughput desired value at center of default corresponding described community, described base station determines that the average throughput at the center of described community reaches the average throughput desired value at the edge of corresponding described community.

Need to further be pointed out that; for concrete system environments, set and corresponding certainty of measurement demand; the particular type of above-mentioned disturbance state information can also further select other can characterize the information type of the disturbance state of current area, and such variation does not affect protection scope of the present invention.

In addition, in subsequent descriptions in embodiments of the present invention, there is equally the corresponding situation of above-mentioned explanation, the same type setting rule that can adjust flexibly corresponding disturbance state information with reference to above-mentioned explanation, and the judgment rule that whether meets the desired value of corresponding every disturbance state information, no longer repeated description.

Step S302, the current interference coordination schemes in confirmation community, base station, and according to the relation between the desired value of the disturbance state information at the edge of the current community counting on and center and default corresponding every disturbance state information, the interference coordination schemes that community is current is carried out to parameter setting.

In actual applications, according to the type of existing interference coordination schemes, set, the current interference coordination schemes in community that base station may be confirmed, is specially a kind of in static interference coordination, coordinating semi-static interference or dynamic interference coordination.

It is to be noted, the parameter setting up procedure realized in this step, be actually according to the relation between the desired value of the disturbance state information at the edge of community and center and default corresponding every disturbance state information, and regular accordingly, the parameter of carrying out is reseted and is put, i.e. parameter adjustment.

When the disturbance state information of reseting postpone when parameter reaches the switch condition of default interference coordination schemes, execution step S303.

When the disturbance state information of reseting postpone when parameter reaches the desired value of default every disturbance state information, execution step S304.

First, it should be noted that, in actual application scenarios, in order to guarantee can both have suitable solution to process for all situations, the switch condition of above-mentioned interference coordination schemes should cover out all situations outside the situation that disturbance state information after parameter adjustment reaches default desired value, just correspondingly for different interference coordination schemes, there is different switch conditions, but the set of all switch conditions should cover all situations the situation of desired value that disturbance state information after parameter adjustment (reset and put) reaches default every disturbance state information.

Completed in this step after the determining of interference coordination schemes type, concrete parameter adjustment rule is as follows:

When the desired value that has at least one item not reach default corresponding disturbance state information in the edge of the current community counting on and every disturbance state information at center is determined in base station, the parameter of the interference coordination schemes that increase community, base station is current, when base station determines that the edge of the current community counting on and every disturbance state information at center have all reached the desired value of default corresponding every disturbance state information, base station reduces the parameter of the current interference coordination schemes in community.

Further, in actual application scenarios, too frequent for fear of parameter adjustment, can set in advance the adjustment numerical value of parameter adjustment each time and the frequency threshold value of parameter adjustment, when trigger parameter adjustment each time, base station is adjusted according to corresponding adjustment numerical value the parameter in current interference coordination schemes, and counts after each adjustment.

And when parameter adjustment is to maximum or minimum value, or when the number of times of the current parameter adjustment of carrying out reaches default frequency threshold value, the conversion operations of corresponding interference coordination schemes can be triggered in base station according to following step S303, illustrate in corresponding description and provide.

In the technical scheme proposing in the embodiment of the present invention, preferentially carry out the consumption that parameter adjustment can avoid directly carrying out the system resource that interference coordination schemes conversion brings, make the optimizing process of interference coordination schemes there is level, incremental.

Interference coordination schemes conversion is carried out to community in step S303, base station.

When the disturbance state information after interference coordination schemes conversion reaches the desired value of default corresponding every disturbance state information, execution step S304.

When the disturbance state information after interference coordination schemes conversion does not reach the desired value of default corresponding every disturbance state information, execution step S305.

In actual application scenarios, the conversion of the interference coordination schemes in this step comprises following several situation:

Situation one, when confirmation community, base station, current interference coordination schemes is static interference universal time coordinated, if every disturbance state information at the edge of community and center does not all reach the desired value of default corresponding every disturbance state information, coordinating semi-static interference is triggered to community in base station.

Situation two, when the current interference coordination schemes in confirmation community, base station is coordinating semi-static interference, if every disturbance state information at the edge of community and center does not all reach the desired value of default corresponding every disturbance state information, and the parameter adjusted of coordinating semi-static interference is to maximum, and dynamic interference coordination is triggered to community in base station.

Situation three, when the current interference coordination schemes in confirmation community, base station is dynamic interference coordination, if every disturbance state information at the edge of community and center all reaches the desired value of default corresponding every disturbance state information, and the parameter adjusted of dynamic interference coordination is to minimum value, base station stops dynamic interference coordination to community, and trigger coordinating semi-static interference, and initial parameter is maximum.

Situation four, when the current interference coordination schemes in confirmation community, base station is coordinating semi-static interference, if every disturbance state information at the edge of community and center all reaches the desired value of default corresponding every disturbance state information, and the parameter adjusted of coordinating semi-static interference is to minimum value, and base station stops coordinating semi-static interference to community.

In above-mentioned various situations, consider in actual operation, it is basic interference coordination schemes that static interference is coordinated, and further carry out coordinating semi-static interference thereon, can improve the effect of interference coordination, if further heightening interference coordination effect, can be by the enterprising stepping Mobile state interference coordination in the basis of coordinating in static interference, the interference coordination effect that is to say static interference coordination, coordinating semi-static interference and dynamic interference coordination strengthens successively, and the amount consuming also improves successively.

The technical scheme that the embodiment of the present invention proposes is for fear of the significantly variation of the system resources consumption that significantly conversion of interference coordination schemes brings, so, for the conversion of interference coordination schemes, be also incremental carrying out, only can be according to above-mentioned order, the conversion of carrying out interference coordination schemes step by step.

Wherein, above-mentioned situation one and situation two are updating operation of the interference coordination schemes of carrying out when current interference coordination schemes cannot realize corresponding optimization aim, improved interference coordination effect, increased the consumption of system resource, contrary, situation three and situation four fundamental rules are to have realized corresponding optimization aim in current interference coordination schemes, and the degraded operation of the interference coordination schemes of carrying out while likely there is the situation of interference coordination surplus, reduce interference coordination effect, reduced the consumption of system resource.

Step S304, base station complete the optimization to the interference coordination schemes of community.

On the one hand, the Optimum Operation of current interference coordination schemes can directly finished in such cases in base station.

On the other hand, in order to prevent from optimizing the situation of the interference coordination surplus causing, the embodiment of the present invention also further defines the upper limit of effect of optimization, concrete form is before the disturbance state information by the edge in statistics community, base station and center, the mode that the optimization threshold value of the edge of community and every disturbance state information at center is set realizes, if optimum results makes measured value not only reach corresponding desired value, and superfluous effect of optimization and difference between desired value have reached corresponding optimization threshold value, also need to carry out conversion or the parameter adjustment of corresponding interference coordination schemes, only have corresponding effect of optimization not have superfluous to exceeding in the situation of optimizing threshold value, just can confirm the optimization of the interference coordination schemes of Dui Gai community, the object of doing is like this to save unnecessary system resources consumption, in actual application, the endless form that can combine by the step S302 with above-mentioned and S303 is adjusted, be not repeated.

In actual application scenarios, in conjunction with above-mentioned optimization threshold value, the corresponding processing mode of this step comprises following several situation:

Situation one, when confirmation community, base station, current interference coordination schemes is static interference universal time coordinated, if every disturbance state information at the edge of community and center all reaches the desired value of default corresponding every disturbance state information, base station completes the optimization to the interference coordination schemes of community.

Situation two, when the current interference coordination schemes in confirmation community, base station is coordinating semi-static interference, if every disturbance state information at the edge of community and center all reaches the desired value of default corresponding every disturbance state information, and the difference between the desired value of every disturbance state information and corresponding every disturbance state information is less than optimization threshold value, and base station completes the optimization to the interference coordination schemes of community.

Situation three, when the current interference coordination schemes in confirmation community, base station is dynamic interference coordination, if every disturbance state information at the edge of community and center all reaches the desired value of default corresponding every disturbance state information, and the difference between the desired value of every disturbance state information and corresponding every disturbance state information is less than optimization threshold value, and base station completes the optimization to the interference coordination schemes of community.

Step S305, base station stop the optimization to the interference coordination schemes of community, and trigger the covering of community or capacity optimization.

In actual application scenarios, the mode that can regulate by upgrading interference coordination schemes and parameter due to interference coordination effect gets a promotion, therefore, only can not be when solving the disturbed condition of current area in the mode by such, just can trigger this step, therefore, the concrete processing procedure of this step is as follows.

When the current interference coordination schemes in confirmation community, base station is dynamic interference coordination, if every disturbance state information at the edge of community and/or center does not all reach default desired value, and the parameter adjusted of dynamic interference coordination is to maximum, base station stops the optimization to the interference coordination schemes of community, and triggers the covering of community or capacity optimization.

Certainly; if the switching strategy of concentrated interference coordination schemes is not to take dynamic interference coordination as terminal; so; accordingly; also can in the process of other interference coordination schemes, realize this step; stop corresponding optimization process, such variation does not affect protection scope of the present invention.

Need to further be pointed out that, in order more to optimize corresponding optimizing process, in actual applications, the mode that can also optimize by setting corresponding interference coordination schemes time threshold limits corresponding optimizing process, in actual application scenarios, corresponding time threshold has embodied the time range that is optimized operation, thereby avoids unconfined continue to optimize brought systematic function and the impact of resource occupation.

In concrete enforcement scene; corresponding time threshold also can be expressed as the mode of frequency threshold value; can reach equally the effect that restriction optimizing process can unrestrictedly not loop, concrete application mode and time threshold are similar, and this belongs to protection scope of the present invention equally.

By setting corresponding interference coordination schemes, optimize being described as follows of mode that the mode of time threshold limits corresponding optimizing process:

Wei Ge community, described base station arranges interference coordination schemes and optimizes time threshold;

By such mode; on the one hand; when the current interference coordination schemes optimization time does not reach this time threshold; can be by the mode of circular treatment; to reaching the community of optimization aim, do not proceed corresponding interference coordination schemes optimization; on the other hand; also can avoid unconfined loop optimization operation; make resource occupation and scheme optimization reach coordination; the size of concrete interference coordination schemes optimization time threshold can be set according to actual needs, and such variation does not affect protection scope of the present invention.

Except the setting of time threshold, the technical scheme that the embodiment of the present invention proposes has also proposed maximum continuous measurement number of times and the maximum concept of conversion times continuously, maximum continuous measurement number of times wherein takies in order to the system resource of avoiding still constantly carrying out disturbance state information measurement bring after disturbance state information reaching desired value, on the other hand, the maximum restriction of conversion times continuously has guaranteed that corresponding interference coordination schemes can not be absorbed in the situation of continuous conversion, the system resources consumption of avoiding constantly scheme conversion to bring.

In actual application; above-mentioned maximum continuous measurement number of times and maximum conversion times continuously can be set simultaneously, also can only set as required wherein one, or in the situation that there is no corresponding demand; do not set corresponding parameter, such variation does not affect protection scope of the present invention.

Below, the concrete application scheme to maximum continuous measurement number of times and maximum continuous conversion times describes respectively.

By setting being described as follows of mode that the mode of corresponding maximum continuous measurement number of times limits corresponding optimizing process:

Wei Ge community, described base station arranges maximum continuous measurement number of times;

Wei Ge community, described base station arranges maximum conversion times continuously;

The technical scheme being provided by the above embodiment of the present invention can find out, the present invention determines suitable interference coordination schemes, adjustment relevant parameter by the average throughput at cell edge and center and the gap between frame error rate measured value and corresponding desired value.Meanwhile, should be incremental to the selection of interference coordination schemes, for example, when adopting static interference coordinate scheme, can not directly trigger dynamic interference coordination scheme.Like this, avoided systematic function that larger saltus step occurs at short notice, also avoided still adopting the interference coordination schemes that complexity is higher when environment is better simultaneously, thereby cause the situation to system resource waste, when overcoming presence of intercell interference, effectively improve the utilance of Radio Resource, improved performance and the efficiency of back haul link.

In order more clearly to set forth the technology of the embodiment of the present invention, below in conjunction with concrete application scenarios, be elaborated.

The core of the technical scheme that the embodiment of the present invention proposes is to preset the measuring period of community average throughput and frame error rate, and the average throughput at cell edge and center and the desired value of frame error rate, certainly, interference coordination demand difference due to center of housing estate and edge, the desired value of the average throughput at cell edge and center, and the desired value of the frame error rate at cell edge and center can be not identical.Then, the cell edge that utilization records and the average throughput at center and projects scale value of frame error rate and setting compare, and according to comparative result, determine whether to carry out interference coordination self-optimizing.

In optimizing process, the interference coordination schemes of this current employing in community is first determined in base station, if judgement adopts current interference coordination schemes to carry out parameter adjustment (it is fixed to reset), whether can improve systematic function, in the time can carrying out parameter adjustment under current interference coordination schemes, preferentially carry out parameter adjustment; And cannot carry out parameter adjustment under current interference coordination schemes time, can carry out the conversion of interference coordination schemes, under new interference coordination schemes, carry out again parameter optimization.

The schematic flow sheet of the interference coordination self-organization method of a kind of cell mobile communication systems providing for the embodiment of the present invention as shown in Figure 4, in the optimizing process of an interference coordination schemes.

Step S401, set in advance base station for average throughput and the frame error rate desired value at the average throughput of community and the measuring period of frame error rate and this cell edge and center.

By corresponding instruction or other modes, set base station for the average throughput of this community and the measuring period of frame error rate, then by emulation, determine the desired value of average throughput and the desired value of frame error rate of the cell edge that Gai Zhe community sets, and the desired value of the average throughput of center of housing estate and the desired value of frame error rate.

Certainly, base station also can be after systems organization be good, according to this cell load intensity, in conjunction with factors such as community environment of living in, customer service type and distribution of traffic, carry out system emulation and determine described cell edge and the average throughput at center and the desired value of frame error rate.

Average throughput and the frame error rate of this cell edge added up in step S402, base station, and the average throughput of center of housing estate and frame error rate.

Step S403, confirmation base station are for current the adopted interference coordination schemes in this community, according to the relation between the measured value of the average throughput at cell edge and center and frame error rate and corresponding desired value, carry out relevant parameter adjustment, in corresponding interference coordination schemes parameter adjustment optimizing process, when meeting the switch condition of adopted interference coordination schemes, carry out interference coordination schemes conversion.

In the time of still cannot reaching the average throughput at this cell edge and center and the desired value of frame error rate after interference coordination schemes is optimized, execution step S404.

While reaching the average throughput at this cell edge and center and the desired value of frame error rate after interference coordination schemes is optimized, execution step S405.

The covering of step S404, base station triggers Dui Gai community or capacity self-optimizing process or other liberalization processes, and finish the Optimum Operation of current interference coordination schemes.

The Optimum Operation of current interference coordination schemes is finished in step S405, base station.

In Fig. 5, provided the schematic diagram of changing between the disturbance coordinate scheme in the embodiment of the present invention, shown in figure, switch condition is described as follows:

The average throughput measured value of condition one, cell edge is less than the desired value of the average throughput of cell edge, user's frame error rate measured value of cell edge is greater than the desired value of user's frame error rate of cell edge, and the average throughput measured value of center of housing estate is less than the desired value of the average throughput of center of housing estate, user's frame error rate measured value of center of housing estate is greater than the desired value of user's frame error rate of center of housing estate.

The average throughput at condition two, cell edge and center and frame error rate measured value all do not meet corresponding projects scale value, and the parameter adjustment of coordinating semi-static interference has reached maximum.

Condition three, continuous K measurement all have the average throughput at cell edge or center and frame error rate measured value to meet corresponding desired value, the parameter adjustment of dynamic interference coordination has reached minimum value, and the scheme between coordinating semi-static interference and dynamic interference coordination is changed and is no more than M time continuously.

Condition four, continuous K measurement all have the average throughput at cell edge or center and frame error rate measured value to meet corresponding desired value, the parameter adjustment of coordinating semi-static interference has reached minimum value, and the scheme between coordinating semi-static interference and static interference coordination is changed and is no more than M time continuously.

The average throughput at condition five, cell edge and center and frame error rate measured value not all meet corresponding desired value, and the parameter adjustment of dynamic interference coordination has reached maximum.

Condition six, continuous K measurement all have the average throughput at cell edge and center and frame error rate measured value to meet corresponding desired value.

Condition seven, continuous K measurement all have cell edge and center average throughput measured value to meet corresponding average throughput desired value, and the difference between itself and desired value is less than threshold value, and the frame error rate measured value at cell edge and center meets corresponding frame error rate desired value;

Or average throughput measured value and the frame error rate at cell edge and center all meet desired value, and and static interference coordinate scheme between continuously conversion times over M time.

Condition eight, continuous K measurement all have the average throughput measured value at cell edge and center to meet corresponding average throughput desired value, and the difference between itself and desired value is less than threshold value, and the frame error rate measured value at cell edge and center meets corresponding frame error rate desired value;

Or cell edge and center average throughput and frame error rate measured value all meet corresponding desired value, and and coordinating semi-static interference scheme between continuously conversion times over M time.

Need to further be pointed out that; above-mentioned K represents maximum continuous measurement number of times; M represents maximum conversion times continuously; it is all the threshold parameter arranging for fear of too much taking of system resource; concrete size; and whether set corresponding parameter and can adjust according to actual needs, corresponding variation can't affect protection scope of the present invention.

According to above-mentioned each condition, being described as follows of the concrete transfer process in Fig. 5.

When adopting static interference coordinate scheme, and satisfy condition for the moment, trigger coordinating semi-static interference scheme.

When adopting coordinating semi-static interference scheme, and satisfy condition 2 o'clock, carry out coordinating semi-static interference scheme to the conversion of dynamic interference coordination scheme.

When adopting dynamic interference coordination scheme, and satisfy condition 3 o'clock, carry out dynamic interference coordination scheme to the conversion of coordinating semi-static interference scheme.

When adopting coordinating semi-static interference scheme, and satisfy condition 4 o'clock, carry out coordinating semi-static interference scheme to the conversion of static interference coordinate scheme.

When adopting dynamic interference coordination scheme, and satisfy condition 5 o'clock, stop the optimization of interference coordination schemes, trigger and cover or capacity optimization, finish the optimizing process of this interference coordination schemes.

When adopting static interference coordinate scheme, and satisfy condition 6 o'clock, finish the Optimum Operation of this interference coordination schemes.

When adopting coordinating semi-static interference scheme, and satisfy condition 7 o'clock, finish the Optimum Operation of this interference coordination schemes.

When adopting dynamic interference coordination scheme, and satisfy condition 8 o'clock, finish the Optimum Operation of this interference coordination schemes.

Further describe technical scheme proposed by the invention below, specifically, as shown in Fig. 6 to 9, corresponding processing procedure is described as follows.

It is to be noted; for convenience of description; in the declarative procedure of the embodiment as described in Fig. 6 to 9; in order to prevent from carrying out continuously the waste of the system resource that the conversion of interference coordination mode and the measurement of continuous disturbance state information bring; in the present embodiment, further set maximum conversion times and maximum continuous measurement number of times continuously; concrete, implement in scene; whether maximum conversion times and/or maximum continuous measurement number of times are continuously set, and the size of the continuous conversion times of this maximum and maximum continuous measurement number of times can not affect protection scope of the present invention.

Step S601, base station judge whether the counting record of counter of the optimization number of times of interference coordination schemes surpasses default frequency threshold value.

With frequency threshold value record, be limited in the maximum times of performed interference coordination schemes in an interference coordination operating process herein; this is a kind of avatar of the time threshold in previous embodiment of the present invention; that such variation does not affect protection scope of the present invention for interference coordination is operated and carries out the restriction in time range equally.

Frequency threshold value is herein the maximum times of the Optimum Operation of default interference coordination schemes, by corresponding counter, counts, and this kind of restriction is a kind of example providing for convenience of description, do not limit protection scope of the present invention.

If surpassed, perform step S602;

If do not surpassed, perform step S605.

The optimizing process of this interference coordination schemes is finished in step S602, base station.

The optimization process of interference coordination schemes is triggered in step S603, base station according to corresponding indication or triggering rule.

In the technical scheme of the present embodiment, after the optimization process of an interference coordination schemes triggers, can carry out repeatedly the Optimum Operation of interference coordination schemes, in the optimization process of an interference coordination schemes, the counter of the optimization number of times by interference coordination schemes, number of times to the Optimum Operation of interference coordination schemes is counted, and base station determines according to corresponding count results whether the Optimum Operation number of times of current interference coordination schemes surpasses default frequency threshold value.

In addition, consider the various concrete conditions in practical operation, except above-mentioned frequency threshold value, in the present embodiment, further set maximum continuous measurement number of times as the end foundation of the optimization process of an interference coordination schemes, illustrate and refer to step S607.

Step S604, base station are by the counter O reset of the optimization number of times of interference coordination schemes, be set measuring period in base station, and according to this cell load situation, customer service type and distribution of traffic, set average throughput desired value and the frame error rate desired value of this cell edge and the average throughput desired value of center of housing estate and frame error rate desired value.

Step S605, base station judge that whether measuring period timer is overtime.

If overtime, perform step S606;

If do not have overtimely, continue execution step S605, wait for the beginning of next measuring period, to start the measurement of corresponding cell edge and center average throughput and frame error rate.

Step S606, timer zero clearing measuring period, average throughput and the frame error rate at this cell edge and center added up in base station, and when measuring successfully, continuous measurement time counter added to 1.

In this step, the maximum number of times of resurveying can also be further set, when measuring unsuccessfully, the current number of times of resurveying is added to 1, when measuring successfully, empty the current number of times record of resurveying, and continuous measurement number of times is added to 1, when the current number of times record of resurveying reaches maximum and resurveys number of times, can report an error to system, remind corresponding measurement handling process or equipment are detected, break down judging whether, cause measuring successfully.

Step S607, base station judge whether to surpass maximum continuous measurement number of times.

If surpassed, perform step S602;

If do not surpassed, perform step S608.

The interference coordination schemes that this community is current adopted is determined in step S608, base station.

If this community adopts static interference to coordinate, perform step S701;

If this community adopts coordinating semi-static interference, perform step S801;

If this community adopts dynamic interference coordination, perform step S901.

Step S701, base station be this cell edge and the average throughput at center and the measured value of frame error rate and corresponding projects scale value relatively.

If the average throughput at cell edge and center and the measured value of frame error rate all meet corresponding desired value, directly perform step S704.

In actual application scenarios, the measured value of the average throughput at cell edge and center meets corresponding desired value, the measured value that is specially the average throughput at cell edge and center is more than or equal to respectively the desired value of the average throughput at cell edge and center, the measured value of the frame error rate at cell edge and center meets corresponding desired value, and the measured value that is specially the frame error rate at cell edge and center is less than or equal to respectively the desired value of the frame error rate at cell edge and center.

If the average throughput at cell edge and center does not all meet corresponding desired value, perform step S702;

In actual application scenarios, the measured value of the average throughput at cell edge and center does not meet corresponding desired value, the measured value that is specially the average throughput at cell edge and center is less than respectively the desired value of the average throughput at cell edge and center, the measured value of the frame error rate at cell edge and center does not meet corresponding desired value, and the measured value that is specially the frame error rate at cell edge and center is greater than respectively the desired value of the frame error rate at cell edge and center.

If be not all above two kinds of situations, perform step S703.

Below, meet or do not meet the situation of corresponding desired value for the average throughput at cell edge and center and the measured value of frame error rate, corresponding explanation is consistent with above-mentioned explanation, no longer repeat specification.

Step S702, the current interference coordination schemes in Jiang Gai community, base station are coordinated to be converted to coordinating semi-static interference by static interference, and corresponding parameter is set to minimum value.

After this step is complete, the number of times in continuous measurement time counter is recorded to zero clearing, the counting record of continuous conversion times is added to 1, then directly perform step S704.

The parameter adjustment of static interference coordination is carried out in step S703, Dui Gai community, base station.

In this process, number of times in continuous measurement time counter records zero clearing, further, owing to also having set the restriction of maximum continuous conversion times in the present embodiment, so, when there is parameter adjustment, just no longer there is the continuous conversion of interference coordination mode, the counting of continuous conversion times need to be recorded to zero clearing, then directly perform step S704.

Step S704, the counting record of the counter of the optimization number of times of interference coordination schemes is added to 1.

After this step completes, return to execution step S601.

Step S801, base station determine whether the average throughput at this cell edge and center and the measured value of frame error rate meet the requirement of corresponding projects scale value.

It should be noted that the requirement that meets desired value herein comprises the implication of two aspects:

On the one hand, the average throughput at cell edge and center and the measured value of frame error rate all meet corresponding projects scale value, and specific description is referring to the explanation in step S701.

On the other hand, the difference between measured value and desired value does not surpass threshold value, there is no superfluous optimization.

If the average throughput at cell edge and center and the measured value of frame error rate all meet corresponding projects scale value, and the difference between measured value and desired value surpasses threshold value (above defined optimization threshold value), performs step S809;

Otherwise, execution step S802.

Step S802, base station judge whether the average throughput at cell edge and center and the measured value of frame error rate all meet corresponding desired value.

If so, represent whether the average throughput at edge, current area and center and the measured value of frame error rate are all better than corresponding desired value, just the difference between measured value and desired value surpasses threshold value, has superfluous optimization, therefore, and execution step S803;

If not, in the average throughput at cell edge and center and the measured value of frame error rate, there is the situation that does not meet corresponding projects scale value, perform step S806.

Step S803, base station judge whether the parameter of current coordinating semi-static interference is minimum value.

If so, execution step S804;

If not, execution step S807.

Step S804, base station judge whether the current number of times that carries out continuously the conversion of interference coordination mode in this community reaches maximum conversion times continuously.

If reached, the optimizing process of this interference coordination mode is finished in base station, directly performs step S602;

If do not reached, execution step S805.

Step S805, the current interference coordination schemes in Jiang Gai community, base station are converted to static interference by coordinating semi-static interference and coordinate.

Accordingly, the number of times in continuous measurement time counter is recorded to zero clearing, the counting record of continuous conversion times is added to 1, then directly perform step S809.

Step S806, base station judge whether the parameter of current coordinating semi-static interference is maximum.

If so, execution step S808;

If not, execution step S807.

The parameter adjustment of coordinating semi-static interference is carried out in step S807, Dui Gai community, base station.

In this process, the number of times in continuous measurement time counter records zero clearing, and the counting of continuous conversion times is recorded to zero clearing, then directly performs step S809.

Step S808, the current interference coordination schemes in Jiang Gai community, base station are converted to dynamic interference coordination by coordinating semi-static interference, and corresponding parameter is set to minimum value.

Step S809, the counting record of the counter of the optimization number of times of interference coordination schemes is added to 1.

After this step completes, return to execution step S601.

Step S901, base station determine whether the average throughput at this cell edge and center and the measured value of frame error rate meet the requirement of corresponding projects scale value.

It should be noted that with step S801 similarly, the requirement that meets desired value herein comprises the implication of two aspects:

If the average throughput at cell edge and center and the measured value of frame error rate all meet corresponding projects scale value, and the difference between measured value and desired value surpasses threshold value (above defined optimization threshold value), performs step S909;

Otherwise, execution step S902.

Step S902, base station judge whether the average throughput at cell edge and center and the measured value of frame error rate all meet corresponding projects scale value.

If so, represent whether the average throughput at edge, current area and center and the measured value of frame error rate are all better than corresponding desired value, just the difference between measured value and desired value surpasses threshold value, has superfluous optimization, therefore, and execution step S903;

If not, in the measured value of the average throughput at cell edge and center, there is the situation that does not meet corresponding projects scale value, perform step S906.

Step S903, base station judge whether the parameter of current dynamic interference coordination is minimum value.

If so, execution step S904;

If not, execution step S907.

Step S904, base station judge whether the current number of times that carries out continuously the conversion of interference coordination mode in this community reaches maximum conversion times continuously.

If do not reached, execution step S905.

Step S905, the current interference coordination schemes in Jiang Gai community, base station are converted to coordinating semi-static interference by dynamic interference coordination.

Accordingly, the number of times in continuous measurement time counter is recorded to zero clearing, the counting record of continuous conversion times is added to 1, then directly perform step S909.

Step S906, base station judge whether the parameter of current dynamic interference coordination is maximum.

If so, execution step S908;

If not, execution step S907.

The parameter adjustment of dynamic interference coordination is carried out in step S907, Dui Gai community, base station.

In this process, the number of times in continuous measurement time counter records zero clearing, and the counting of continuous conversion times is recorded to zero clearing, then directly performs step S909.

Trigger the covering of community or capacity optimization step S908, Dui Gai community, base station.

After completing this step, the optimizing process of this interference coordination mode is finished in base station, directly performs step S602.

Step S909, the counting record of the counter of the optimization number of times of interference coordination schemes is added to 1.

After this step completes, return to execution step S601.

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

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

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

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

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

Claims

1. an interference coordination self-organization method for cell mobile communication systems, is characterized in that, the method at least comprises the following steps:

When the disturbance state information after the disturbance state information after described parameter adjustment or the conversion of described interference coordination schemes reaches the desired value of described default corresponding every disturbance state information, described base station completes the optimization to the interference coordination schemes of described community;

Wherein, the interference coordination schemes that described community is current is confirmed in described base station, and according to the relation between the desired value of the disturbance state information at the edge of the current described community counting on and center and default corresponding every disturbance state information, the interference coordination schemes that described community is current is carried out to parameter adjustment, specifically comprises:

When the desired value that has at least one item not reach default corresponding disturbance state information in the edge of the current described community counting on and every disturbance state information at center is determined in described base station, described base station increases the parameter of the current interference coordination schemes in described community, when described base station determines that the edge of the current described community counting on and every disturbance state information at center have all reached the desired value of default corresponding every disturbance state information, described base station reduces the parameter of the current interference coordination schemes in described community;

When the disturbance state information after described parameter adjustment reaches the switch condition of default interference coordination schemes, interference coordination schemes conversion is carried out to described community in described base station, specifically comprises:

2. the method for claim 1, is characterized in that, before the edge of statistics community, described base station and the disturbance state information at center, also comprises:

3. the method for claim 1, is characterized in that,

When the disturbance state information after described interference coordination schemes conversion does not reach the desired value of described default corresponding every disturbance state information, described base station stops the optimization to the interference coordination schemes of described community, and triggers the covering of described community or capacity optimization.

4. the method for claim 1, is characterized in that, before the edge of statistics community, described base station and the disturbance state information at center, also comprises that described base station arranges the optimization threshold value of the edge of community and every disturbance state information at center;

5. the method as described in any one in claim 1 to 4, is characterized in that,

When the average throughput at the edge of the described community of described base station statistics is equal to or greater than the average throughput desired value at edge of default corresponding described community, described base station determines that the average throughput at the edge of described community reaches the average throughput desired value at the edge of corresponding described community, when the average throughput at the center of the described community of described base station statistics is equal to or greater than the average throughput desired value at center of default corresponding described community, described base station determines that the average throughput at the center of described community reaches the average throughput desired value at the edge of corresponding described community,

6. the method as described in any one in claim 1 to 4, is characterized in that,

7. the method as described in any one in claim 1 to 4, is characterized in that,

8. the method as described in any one in claim 1 to 4, is characterized in that,