CN102223645A

CN102223645A - Interference coordination self-optimizing method of cellular mobile communication system

Info

Publication number: CN102223645A
Application number: CN201110144587XA
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: 2011-10-19
Anticipated expiration: 2031-05-31
Also published as: CN102223645B

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 influences systematic function in the communication system.With OFDM(Orthogonal Frequency Division Multiplexing, OFDM) technology is the LTE(Long Term Evolution on basis, Long Term Evolution) in the system, because inside, sub-district strict same orthogonal resource piece of restriction (time, frequency, space three-dimensional) when carrying out resource allocation is to distribute to a plurality of users simultaneously, therefore, be to exist common road to disturb hardly in inside, sub-district.

But along with the continuous development of the communication technology, in order to pursue the higher availability of frequency spectrum, identical networking becomes of LTE system and pursues one's goal.Under the identical networking scene, identical frequency resource is all reused in sub-districts all in the network, though can guarantee the higher availability of frequency spectrum of center of housing estate by the spatial separation 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 the scheduling of resource and the allocation strategy of each sub-district, avoid the interference of minizone.Typical partial frequency multiplexing is the several sections (being divided into three parts usually) that system's available frequencies resource branch is orthogonal, then, edge customer for adjacent sub-district can only use mutually orthogonal frequency resource, and other resource that central user can use edge customer not use, but, must be reduced in the power level on these frequency resources.

It should be noted that partial frequency multiplexing must combine with power control, otherwise do not have effect.

As shown in Figure 1, with sub-district 1 as with reference to the sub-district, as can be seen after carrying out partial frequency multiplexing, because the frequency resource power that use in the central area sub-district 2 to 7 is lower, so the presence of intercell interference that the edge customer of sub-district 1 is subjected to is less.Simultaneously, because therefore the frequency resource quadrature that the edge customer of frequency resource that sub-district 2 to 7 edge region are used and sub-district 1 uses, does not exist interference between the two.

(2) coordinating semi-static interference.

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

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

HII indicates following a period of time of this sub-district will distribute which PRB(Physical Resource Block, Physical Resource Block) give edge customer, these resources, 1bit/PRB are avoided using in adjacent sub-district as far as possible when the scheduling edge customer.OI indicates the disturbed condition on each PRB of this sub-district, is divided into high, medium and low Three Estate, and adjacent sub-district receives that the interference power adjustment is carried out in this indication back on corresponding PRB and the user dispatches adjustment.

The 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 sub-district, notify which PRB of adjacent sub-district to send with high power, adjacent sub-district 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.

The minizone is carried out coordinated scheduling real-time dynamicly, reduces the method for presence of intercell interference.In LTE, pass through CoMP(Coordinated Multiple Points, coordinate multipoint) the realization dynamic interference coordination.The cycle of dynamic interference coordination is the millisecond magnitude, requires the real-time information interaction in minizone, and the time of resource coordination is usually with TTI(Transmission Time Interval, Transmission Time Interval) be unit.The typical time delay of X2 interface is 10-20ms, and therefore, dynamic interference coordination completely can't be realized in the sub-district between different base station.Dynamic interference coordination is used between the different sectors of same base station more.At present 3GPP(Third Generation 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) information transmitted is at the CoMP of a plurality of transmission nodes in, PDCCH(Physical Downlink Control Channel, Physical Downlink Control Channel) control information of transmission is not carried out CoMP and is transmitted separately by the Serving cell eNode B (evolved base station) at terminal place in.According to data message, promptly whether information transmitted is shared between a plurality of transmission nodes among the PDSCH, and descending CoMP technology can be divided into two classes:

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

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

Three kinds of schemes are to the requirement of base station information interaction ability and the difference of interference coordination ability as can be seen by the contrast of above various interference coordination technique, and applied scene is difference to some extent also.Coordinate for static interference, be mainly used in interference and not serious, traffic carrying capacity changes under the inviolent scene; For coordinating semi-static interference, require to carry out between the base station information interaction, adjust the parameter of interference coordination, can effectively suppress presence of intercell interference, improve the cell edge throughput; For dynamic interference coordination, require the minizone to carry out real-time information interaction, cooperation in the Intra-siteCoMP(multipoint cooperative website) occur in the website, this moment can be in the mutual a large amount of information in a plurality of minizones of same website because do not return the restriction of capacity.Cooperate between Inter-siteCoMP(multipoint cooperative website) occur between a plurality of websites, passback capacity and time delay have been proposed requirements at the higher level, therefore, be mainly used in the interference between different sectors in the same sub-district of inhibition for dynamic interference coordination.

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

For three kinds of above-mentioned interference coordination modes, under different situations, 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, uses also easyly, and the complexity of dynamic interference coordination is the highest, and is also the highest to the requirement of the capacity of back haul link and delay.

Therefore, how in the LTE system, to select different technical schemes to reach most important for the balance between interference coordination performance gain and the enforcement complexity at different interference strengths, avoid when environment is better, still adopting the higher interference coordination schemes of complexity to cause situation just to become a problem that presses for solution, but do not propose the scheme of selection interference coordination technique automatically in the prior art at present system resource waste.

Summary of the invention

The embodiment of the invention provides a kind of interference coordination self-organization method of cell mobile communication systems, thereby, can be the suitable interference coordination schemes of corresponding cell selecting according to current system status.

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

The edge of statistics sub-district, 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 sub-district 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 sub-district that counts on and center and default corresponding every disturbance state information, the interference coordination schemes that described sub-district is current is carried out parameter adjustment, wherein, the interference coordination schemes that can use of described sub-district specifically comprises static interference coordination, coordinating semi-static interference and dynamic interference coordination;

When the disturbance state information after the described parameter adjustment reached the switch condition of default interference coordination schemes, the interference coordination schemes conversion was carried out to described sub-district in described base station;

When the disturbance state information after the conversion of the disturbance state information after the described parameter adjustment or described interference coordination schemes reached the desired value of described default corresponding every disturbance state information, the optimization to the interference coordination schemes of described sub-district was finished in described base station.

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

The base station is provided with the disturbance state information measurement cycle of sub-district;

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

Preferably, the interference coordination schemes that described sub-district 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 sub-district that counts on and center and default corresponding every disturbance state information, the interference coordination schemes that described sub-district is current is carried out parameter adjustment, specifically comprises:

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

When in every disturbance state information at the edge of the current described sub-district that counts on and center is determined in described base station, having at least one item not reach the desired value of default corresponding interference state information, described base station increases the parameter of the current interference coordination schemes in described sub-district, when described base station determined that every disturbance state information at the edge of the current described sub-district that counts on and center has reached the desired value of default corresponding every disturbance state information all, described base station reduced the parameter of the current interference coordination schemes in described sub-district.

Preferably, when the disturbance state information after the described parameter adjustment reached the switch condition of default interference coordination schemes, the interference coordination schemes conversion was carried out to described sub-district in described base station, specifically comprises:

Confirming the current interference coordination schemes in described sub-district when described base station is the static interference universal time coordinated, if every disturbance state information at the edge of described sub-district 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 sub-district in described base station;

When described base station confirms that the current interference coordination schemes in described sub-district is coordinating semi-static interference, if every disturbance state information at the edge of described sub-district 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 sub-district in described base station;

When described base station confirms that the current interference coordination schemes in described sub-district is dynamic interference coordination, if every disturbance state information at the edge of described sub-district 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 sub-district, and the triggering coordinating semi-static interference, and initial parameter is a maximum;

When described base station confirms that the current interference coordination schemes in described sub-district is coordinating semi-static interference, if every disturbance state information at the edge of described sub-district 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 sub-district.

Preferably, when the disturbance state information after the conversion of described interference coordination schemes 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 sub-district, and triggers covering or capacity optimization or other interference self-optimizings to described sub-district.

Preferably, before the edge of statistics sub-district, described base station and the disturbance state information at center, comprise that also described base station is provided with the optimization threshold value of every disturbance state information at the edge of sub-district and center;

When the disturbance state information after the conversion of the disturbance state information after the described parameter adjustment or described interference coordination schemes reaches the desired value of described default corresponding every disturbance state information, the optimization to the interference coordination schemes of described sub-district is finished in described base station, specifically comprises:

Confirming the current interference coordination schemes in described sub-district when described base station is the static interference universal time coordinated, if every disturbance state information at the edge of described sub-district and center all reaches the desired value of described default corresponding every disturbance state information, the optimization to the interference coordination schemes of described sub-district is finished in described base station;

When described base station confirms that the current interference coordination schemes in described sub-district is coordinating semi-static interference, if every disturbance state information at the edge of described sub-district 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 the optimization to the interference coordination schemes of described sub-district is finished in described base station;

When described base station confirms that the current interference coordination schemes in described sub-district is dynamic interference coordination, if every disturbance state information at the edge of described sub-district 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 the optimization to the interference coordination schemes of described sub-district is finished in described base station.

Preferably, when the average throughput at the edge of the described sub-district of described base station statistics is equal to or greater than the average throughput desired value at edge of default corresponding described sub-district, described base station determines that the average throughput at the edge of described sub-district reaches the average throughput desired value at the edge of corresponding described sub-district, when the average throughput at the center of the described sub-district of described base station statistics was equal to or greater than the average throughput desired value at center of default corresponding described sub-district, described base station determined that the average throughput at the center of described sub-district reaches the average throughput desired value at the edge of corresponding described sub-district;

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

Preferably, time threshold is optimized for each sub-district is provided with interference coordination schemes in described base station;

When described base station triggers was carried out the optimization process of interference coordination schemes to a sub-district, described base station began the interference coordination schemes Optimizing operation timing to described sub-district;

The time of the interference coordination schemes Optimizing operation being carried out in described sub-district when described base station reaches described interference coordination schemes when optimizing time threshold, and the optimization to the interference coordination schemes of described sub-district is finished in described base station.

Preferably, described base station for each sub-district is provided with maximum continuous measurement number of times;

When described base station successfully counts on the disturbance state information at the edge of a sub-district and center, described base station adds 1 to the continuous measurement number of times of described sub-district, successfully do not count on the disturbance state information at the edge and the center of a sub-district when described base station, or the current interference coordination schemes generation parameter adjustment in described sub-district, or the interference coordination schemes conversion is when taking place in described sub-district, and described base station is to the count results clear 0 of the continuous measurement number of times of described sub-district;

When described base station determined that the count results of the continuous measurement number of times of described sub-district reaches described maximum continuous measurement number of times, the optimization to the interference coordination schemes of described sub-district was finished in described base station.

Preferably, described base station is provided with maximum conversion times continuously for each sub-district;

When change a current interference coordination schemes in sub-district described base station, described base station adds 1 to the continuous conversion times of described sub-district, when parameter adjustment was carried out to the current interference coordination schemes in described sub-district in described base station, described base station was to the count results of the continuous conversion times of described sub-district clear 0;

When described base station determined that the count results of the continuous conversion times of described sub-district reaches the continuous conversion times of described maximum, the optimization to the interference coordination schemes of described sub-district was finished in described base station.

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

By using technical scheme proposed by the invention, the base station is when being the corresponding interference coordination schemes of cell selecting, determine the current interference coordination schemes that adopts in this sub-district earlier, and current interference coordination schemes parameter is optimized according to the measured value and the gap between the desired value of the disturbance state information at cell edge/center, in the time still can not satisfying goal-selling after the parameter optimization, then carry out the conversion of interference coordination schemes, thereby, can be the suitable interference coordination schemes of cell selecting according to current system status, carry out the balance between system interference coordination performance validity and the reliability, the combination property of raising system has been avoided resource waste.

Description of drawings

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

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

Fig. 2 is a multipoint cooperative transmission schematic diagram in the 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 invention;

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

The schematic diagram of Fig. 5 for changing between different interference coordination schemes in the embodiment of the invention;

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 Fig. 6 provides for the embodiment of the invention;

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 Fig. 7 provides for the embodiment of the invention;

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 Fig. 8 provides for the embodiment of the invention;

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 Fig. 9 provides for the embodiment of the invention.

Embodiment

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

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

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

Wherein, the disturbance state information at the edge of a sub-district and center comprises:

The average throughput at the edge of this sub-district and frame error rate, and the average throughput at the center of this sub-district and frame error rate.

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

(1) base station is provided with disturbance state information measurement cycle of sub-district.

Setting operation herein can be that other network equipments are provided with in the base station by concrete instruction; it also can be the corresponding cycle allocation plan that generates by predetermined strategy in the base station; or directly dispose by manual operation, the variation of concrete allocation plan can't influence protection scope of the present invention.

Need to prove, for the optimization result for interference coordination schemes timely tests, 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 is finished, can in time get access to corresponding measurement result, come to test optimizing the result.

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

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

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

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

Kind according to concrete disturbance state information changes, and its judgment rule that whether satisfies the desired value of corresponding every disturbance state information also can carry out corresponding adjustment, specifies as follows:

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

Need further be pointed out that; set and corresponding certainty of measurement demand at concrete system environments; 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 influence protection scope of the present invention.

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

The current interference coordination schemes in sub-district is confirmed in step S302, base station, and, the interference coordination schemes that the sub-district is current is carried out the parameter setting according to the relation between the desired value of the disturbance state information at the edge of the current sub-district that counts on and center and default corresponding every disturbance state information.

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

It is to be noted, the parameter setting up procedure of being realized in this step, be actually according to the relation between the desired value of the disturbance state information at the edge of sub-district and center and default corresponding every disturbance state information, and corresponding rule, the parameter renegotiation setting of carrying out, i.e. parameter adjustment.

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

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

At first, need to prove, in the application scenarios of reality, in order to guarantee to have suitable solution to handle 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 the parameter adjustment reaches preset target value, just correspondingly for different interference coordination schemes, have 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.

After having finished the determining of interference coordination schemes type in this step, concrete parameter adjustment rule is as follows:

When in every disturbance state information at the edge of the current sub-district that counts on and center is determined in the base station, having at least one item not reach the desired value of default corresponding interference state information, the base station increases the parameter of the current interference coordination schemes in sub-district, when the base station determined that every disturbance state information at the edge of the current sub-district that counts on and center has reached the desired value of default corresponding every disturbance state information all, the base station reduced the parameter of the current interference coordination schemes in sub-district.

Further, in the application scenarios of reality, 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, the base station is adjusted according to corresponding adjustment numerical value the parameter in the current interference coordination schemes, and counts after each the adjustment.

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

In the technical scheme that the embodiment of the invention proposed, preferentially carry out the consumption that parameter adjustment can avoid directly carrying out the system resource that the interference coordination schemes conversion brought, make the optimizing process of interference coordination schemes have level, incremental.

The interference coordination schemes conversion is carried out to the sub-district in step S303, base station.

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

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

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

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

Situation two, when the base station confirms that the current interference coordination schemes in sub-district is coordinating semi-static interference, if every disturbance state information at the edge of sub-district 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 the sub-district in the base station.

Situation three, when the base station confirms that the current interference coordination schemes in sub-district is dynamic interference coordination, if every disturbance state information at the edge of sub-district 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, the base station stops dynamic interference coordination to the sub-district, and the triggering coordinating semi-static interference, and initial parameter is a maximum.

Situation four, when the base station confirms that the current interference coordination schemes in sub-district is coordinating semi-static interference, if every disturbance state information at the edge of sub-district 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 the base station stops coordinating semi-static interference to the sub-district.

In above-mentioned various situations, consider in the operation of reality, 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 the interference coordination effect, the basic enterprising stepping action attitude interference coordination that can coordinate in static interference then, the interference coordination effect that is to say static interference coordination, coordinating semi-static interference and dynamic interference coordination strengthens successively, and the amount that is consumed also improves successively.

The technical scheme that the embodiment of the invention proposed is for fear of the significantly significantly variation of the system resources consumption that conversion brought of interference coordination schemes, so, for the conversion of interference coordination schemes also is 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 being carried out when current interference coordination schemes can't realize corresponding optimization aim, improved the interference coordination effect, increased the consumption of system resource, opposite, 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 being carried out in the time of might having the situation of interference coordination surplus, reduce the interference coordination effect, reduced the consumption of system resource.

The optimization to the interference coordination schemes of sub-district is finished in step S304, base station.

On the one hand, the base station can be in the Optimizing operation that directly finishes current interference coordination schemes in such cases.

On the other hand, in order to prevent to optimize the situation of the interference coordination surplus that is caused, the embodiment of the invention also further defines the upper limit of optimizing effect, concrete form is by before the disturbance state information at the edge of base station statistics sub-district and center, the mode of optimization threshold value that every disturbance state information at the edge of sub-district and center is set realizes, make measured value not only reach corresponding desired value if optimize the result, and superfluous optimization effect and the difference between the desired value have reached corresponding optimization threshold value, then also need to carry out the conversion or the parameter adjustment of corresponding interference coordination schemes, it is superfluous to exceeding under the situation of optimizing threshold value to have only corresponding optimization effect not have, just can confirm to finish optimization to the interference coordination schemes of this sub-district, the purpose of doing like this is to save unnecessary consumption of system resources, in the application of reality, can adjust by the endless form that combines with above-mentioned step S302 and S303, in this no longer repeat specification.

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

Situation one, confirm that when the base station the current interference coordination schemes in sub-district is the static interference universal time coordinated, if every disturbance state information at the edge of sub-district and center all reaches the desired value of default corresponding every disturbance state information, the optimization to the interference coordination schemes of sub-district is finished in the base station.

Situation two, when the base station confirms that the current interference coordination schemes in sub-district is coordinating semi-static interference, if every disturbance state information at the edge of sub-district 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 optimizing threshold value, and the optimization to the interference coordination schemes of sub-district is finished in the base station.

Situation three, when the base station confirms that the current interference coordination schemes in sub-district is dynamic interference coordination, if every disturbance state information at the edge of sub-district 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 optimizing threshold value, and the optimization to the interference coordination schemes of sub-district is finished in the base station.

Step S305, base station stop the optimization to the interference coordination schemes of sub-district, and trigger covering or capacity optimization or other interference self-optimizings to the sub-district.

In the application scenarios of reality, because the interference coordination effect can get a promotion by the mode of upgrading interference coordination schemes and parameter regulation, therefore, only can not be when solving the disturbed condition of current area by such mode, just can trigger this step, therefore, the concrete processing procedure of this step is as follows.

When the base station confirms that the current interference coordination schemes in sub-district is dynamic interference coordination, if every disturbance state information at the edge of sub-district and/or center does not all reach preset target value, and the parameter adjusted of dynamic interference coordination is to maximum, the base station stops the optimization to the interference coordination schemes of sub-district, and triggers covering or capacity optimization or other interference self-optimizings to the sub-district.

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

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

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

As follows by setting specifying of mode that mode that corresponding interference coordination schemes optimizes time threshold limits corresponding optimizing process:

Time threshold is optimized for each sub-district is provided with interference coordination schemes in described base station;

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; corresponding interference coordination schemes optimization is proceeded in the sub-district that does not reach optimization aim; 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 influence protection scope of the present invention.

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

In the application of reality; above-mentioned maximum continuous measurement number of times and maximum conversion times continuously can be set simultaneously, also can only set wherein one as required, are not perhaps having under the situation of corresponding demand; do not set relevant parameters, such variation does not influence protection scope of the present invention.

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

Specifying of the mode that mode by setting corresponding maximum continuous measurement number of times limits corresponding optimizing process is as follows:

Described base station is maximum continuous measurement number of times for each sub-district is provided with;

Described base station is maximum conversion times continuously for each sub-district is provided with;

By technical scheme that the above embodiment of the invention provided as can be seen, the present invention determines suitable interference coordination schemes, the adjustment relevant parameter by the average throughput at cell edge and center and the gap between frame error rate measured value and the corresponding desired value.Simultaneously, should be incremental to the selection of interference coordination schemes, for example, when adopting the static interference coordinate scheme, can not directly trigger the dynamic interference coordination scheme.Like this, avoided systematic function that bigger saltus step takes place at short notice, also avoided when environment is better, still adopting the higher interference coordination schemes of complexity simultaneously, thereby cause situation to system resource waste, when overcoming presence of intercell interference, improve utilization ratio of wireless resources effectively, improved the performance and the efficient of back haul link.

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

The core of the technical scheme that the embodiment of the invention proposed is to preestablish the measuring period of sub-district average throughput and frame error rate, and the desired value of the average throughput at cell edge and center and frame error rate, certainly, because the interference coordination demand difference at 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 also inequality.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 determine whether that according to comparative result needs carry out the interference coordination self-optimizing.

In optimizing process, the base station is determined the interference coordination schemes of this current employing in sub-district earlier, adopt current interference coordination schemes to carry out parameter adjustment (it is fixed to reset) if judge, whether can improve systematic function, in the time can under current interference coordination schemes, carrying out parameter adjustment, preferentially carry out parameter adjustment; And under current interference coordination schemes, can't carry out parameter adjustment the time, can carry out the conversion of interference coordination schemes, under new interference coordination schemes, carry out parameter optimization again.

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

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

Set the base station for the average throughput of this sub-district and the measuring period of frame error rate by corresponding instruction or other modes, determine the desired value of average throughput of the cell edge that this this sub-district sets and the desired value of frame error rate by emulation then, and the desired value of the desired value of the average throughput of center of housing estate and frame error rate.

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

The 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, affirmation base station are for the current interference coordination schemes that adopts in this sub-district, average throughput and the measured value of frame error rate and the relation between the corresponding desired value according to cell edge and center, carry out the relevant parameter adjustment, in corresponding interference coordination schemes parameter adjustment optimizing process, when adopting the switch condition of interference coordination schemes when meeting, carry out the interference coordination schemes conversion.

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

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

Step S404, base station triggers be to covering or capacity self-optimizing process or other liberalization processes of this sub-district, and finish the Optimizing operation of current interference coordination schemes.

The Optimizing operation of current interference coordination schemes is finished in step S405, base station.

Provided the schematic diagram of changing between the different interference coordination schemes in the embodiment of the invention among Fig. 5, switch condition shown in the figure specifies 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, and 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 satisfy corresponding projects scale value, and the parameter adjustment of coordinating semi-static interference has reached maximum.

Condition three, continuous KInferior measurement all has the average throughput at cell edge or center and frame error rate measured value to satisfy corresponding desired value, and the parameter adjustment of dynamic interference coordination has reached minimum value, and the continuous conversion of the scheme between coordinating semi-static interference and the dynamic interference coordination is no more than MInferior.

Condition four, continuous KInferior measurement all has the average throughput at cell edge or center and frame error rate measured value to satisfy corresponding desired value, and the parameter adjustment of coordinating semi-static interference has reached minimum value, and the continuous conversion of scheme between coordinating semi-static interference and the static interference coordination is no more than MInferior.

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

Condition six, continuous KInferior measurement all has the average throughput at cell edge and center and frame error rate measured value to satisfy corresponding desired value.

Condition seven, continuous KInferior measurement all has cell edge and center average throughput measured value to satisfy corresponding average throughput desired value, and the difference between itself and the desired value is less than threshold value, and the frame error rate measured value at cell edge and center satisfies corresponding frame error rate desired value;

Perhaps, the average throughput measured value and the frame error rate at cell edge and center all satisfy desired value, and and the static interference coordinate scheme between continuously conversion times surpass MInferior.

Condition eight, continuous KInferior measurement all has the average throughput measured value at cell edge and center to satisfy corresponding average throughput desired value, and the difference between itself and the desired value is less than threshold value, and the frame error rate measured value at cell edge and center satisfies corresponding frame error rate desired value;

Perhaps, cell edge and center average throughput and frame error rate measured value all satisfy corresponding desired value, and and the coordinating semi-static interference scheme between continuously conversion times surpass MInferior.

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

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

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

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

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

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

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

When employing static interference coordinate scheme, and satisfied condition 6 o'clock, finish the Optimizing operation of this interference coordination schemes.

When employing coordinating semi-static interference scheme, and satisfied condition 7 o'clock, finish the Optimizing operation of this interference coordination schemes.

When employing dynamic interference coordination scheme, and satisfied condition 8 o'clock, finish the Optimizing operation of this interference coordination schemes.

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

It is to be noted; for convenience of description; in declarative procedure as the described embodiment of Fig. 6 to 9; the resource waste that measurement brought for the conversion that prevents to carry out continuously the interference coordination mode and continuous disturbance state information; further set maximum conversion times and maximum continuous measurement number of times continuously in the present embodiment; implement in the scene concrete; whether maximum conversion times and/or maximum continuous measurement number of times continuously are set, and should the continuous conversion times of maximum and the size of maximum continuous measurement number of times can not influence 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.

Be limited in the maximum times of performed interference coordination schemes in the interference coordination operating process herein with the frequency threshold value record; this is a kind of avatar of the time threshold in the previous embodiment of the present invention; be for interference coordination operation being carried out the qualification on the time range equally, such variation does not influence protection scope of the present invention.

Frequency threshold value herein is the maximum times of the Optimizing operation of default interference coordination schemes, counts by corresponding counter, and this kind qualification is a kind of example that provides for convenience of description, does not limit protection scope of the present invention.

If surpass, execution in step S602 then;

If do not surpass, execution in step S605 then.

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 present embodiment, after the optimization process of an interference coordination schemes triggers, can carry out repeatedly the Optimizing 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 Optimizing operation of interference coordination schemes is counted, and the base station determines according to corresponding count results whether the Optimizing operation number of times of current interference coordination schemes surpasses default frequency threshold value.

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

Step S604, base station are with the counter O reset of the optimization number of times of interference coordination schemes, be set measuring period in the base station, and set the 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 according to this cell load situation, customer service type and distribution of traffic.

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

If overtime, execution in step S606 then;

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

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

In this step, the maximum number of times of resurveying can also further be set, when measuring failure, the current number of times of resurveying is added 1, when measuring successfully, empty the current number of times record of resurveying, and the continuous measurement number of times added 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 to measure success.

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

If surpass, execution in step S602 then;

If do not surpass, execution in step S608 then.

The current interference coordination schemes that adopts in this sub-district is determined in step S608, base station.

If this sub-district adopts static interference to coordinate, then execution in step S701;

If coordinating semi-static interference, then execution in step S801 are adopted in this sub-district;

If dynamic interference coordination, then execution in step S901 are adopted in this sub-district.

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

If the average throughput at cell edge and center and the measured value of frame error rate all satisfy corresponding desired value, then direct execution in step S704.

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

If the average throughput at cell edge and center does not all satisfy corresponding desired value, then execution in step S702;

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

If all be not above two kinds of situations, then execution in step S703.

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

Step S702, the base station interference coordination schemes that this sub-district is current are coordinated to be converted to coordinating semi-static interference by static interference, and relevant parameters is set to minimum value.

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

The parameter adjustment that static interference is coordinated is carried out to this sub-district in step S703, base station.

In this process, number of times record zero clearing in the continuous measurement time counter, further, owing to also set the restriction of maximum continuous conversion times in the present embodiment, so, when parameter adjustment takes place, just no longer have the continuous conversion of interference coordination mode, need be with the counting record zero clearing of continuous conversion times, direct then execution in step S704.

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

After this step is finished, return execution in step S601.

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

It should be noted that herein the requirement of satisfying desired value 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 satisfy corresponding projects scale value, and specific description is referring to the explanation among the step S701.

On the other hand, the difference between measured value and the desired value does not surpass threshold value, does not promptly have superfluous optimization.

If the average throughput at cell edge and center and the measured value of frame error rate all satisfy corresponding projects scale value, and the difference between measured value and the desired value does not surpass threshold value (being the defined optimization threshold value of preamble), then execution in step S809;

Otherwise, execution in 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 satisfy corresponding desired value.

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

If not, promptly there are the situation that does not satisfy corresponding projects scale value, then execution in step S806 in the measured value of the average throughput at cell edge and center and frame error rate.

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

If, execution in step S804;

If not, execution in step S807.

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

If reach, the optimizing process of this interference coordination mode is finished in the base station, promptly direct execution in step S602;

If do not reach, execution in step S805.

Step S805, the base station interference coordination schemes that this sub-district is current are converted to static interference by coordinating semi-static interference and coordinate.

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

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

If, execution in step S808;

If not, execution in step S807.

The parameter adjustment of coordinating semi-static interference is carried out in step S807, base station to this sub-district.

In this process, the number of times in the continuous measurement time counter writes down zero clearing, and the counting of continuous conversion times is write down zero clearing, direct then execution in step S809.

Step S808, the base station interference coordination schemes that this sub-district is current are converted to dynamic interference coordination by coordinating semi-static interference, and relevant parameters 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 1.

After this step is finished, return execution in step S601.

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

It should be noted that with step S801 similarly, the requirement of satisfying 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 satisfy corresponding projects scale value, and the difference between measured value and the desired value does not surpass threshold value (being the defined optimization threshold value of preamble), then execution in step S909;

Otherwise, execution in 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 satisfy corresponding projects scale value.

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

If not, promptly there are the situation that does not satisfy corresponding projects scale value, then execution in step S906 in the measured value of the average throughput at cell edge and center.

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

If, execution in step S904;

If not, execution in step S907.

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

If do not reach, execution in step S905.

Step S905, the base station interference coordination schemes that this sub-district is current are converted to coordinating semi-static interference by dynamic interference coordination.

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

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

If, execution in step S908;

If not, execution in step S907.

The parameter adjustment of dynamic interference coordination is carried out in step S907, base station to this sub-district.

In this process, the number of times in the continuous measurement time counter writes down zero clearing, and the counting of continuous conversion times is write down zero clearing, direct then execution in step S909.

Step S908, base station are to covering or capacity optimization or other the interference self-optimizing of this sub-district triggering to the sub-district.

After finishing this step, the optimizing process of this interference coordination mode is finished in the base station, promptly direct execution in step S602.

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

After this step is finished, return execution in step S601.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of 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, module in the 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 among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number is not represented the quality of embodiment just to description.

More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims

1. the interference coordination self-organization method of a cell mobile communication systems is characterized in that, this method may further comprise the steps at least:

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

3. the method for claim 1, it is characterized in that, the interference coordination schemes that described sub-district 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 sub-district that counts on and center and default corresponding every disturbance state information, the interference coordination schemes that described sub-district is current is carried out parameter adjustment, specifically comprises:

4. the method for claim 1 is characterized in that, when the disturbance state information after the described parameter adjustment reached the switch condition of default interference coordination schemes, the interference coordination schemes conversion was carried out to described sub-district in described base station, specifically comprises:

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

When the disturbance state information after the conversion of described interference coordination schemes 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 sub-district, and triggers covering or capacity optimization or other interference self-optimizings to described sub-district.

6. the method for claim 1 is characterized in that, before the edge of statistics sub-district, described base station and the disturbance state information at center, comprises that also described base station is provided with the optimization threshold value of every disturbance state information at the edge of sub-district and center;

7. as any described method in the claim 1 to 6, it is characterized in that,

When the average throughput at the edge of the described sub-district of described base station statistics is equal to or greater than the average throughput desired value at edge of default corresponding described sub-district, described base station determines that the average throughput at the edge of described sub-district reaches the average throughput desired value at the edge of corresponding described sub-district, when the average throughput at the center of the described sub-district of described base station statistics was equal to or greater than the average throughput desired value at center of default corresponding described sub-district, described base station determined that the average throughput at the center of described sub-district reaches the average throughput desired value at the edge of corresponding described sub-district;

8. as any described method in the claim 1 to 6, it is characterized in that,

9. as any described method in the claim 1 to 6, it is characterized in that,

10. as any described method in the claim 1 to 6, it is characterized in that,