CN103079235A - Method and device for realizing load balance in long term evolution (LTE) system - Google Patents
Method and device for realizing load balance in long term evolution (LTE) system Download PDFInfo
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- CN103079235A CN103079235A CN2013100165230A CN201310016523A CN103079235A CN 103079235 A CN103079235 A CN 103079235A CN 2013100165230 A CN2013100165230 A CN 2013100165230A CN 201310016523 A CN201310016523 A CN 201310016523A CN 103079235 A CN103079235 A CN 103079235A
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Abstract
The invention relates to the field of communication, and discloses a method and device for realizing the load balance in a long term evolution (LTE) system, which are used for improving the system performance. The method comprises the steps of: determining key performance indicators (KPI) of all communities according to performance indicators, determining the communities which have the probabilities that the KPIs are higher than a set first performance indicator threshold in a monitoring time and reach a preset probability threshold as communities to be balanced, screening N adjacent communities with KPIs lower than a preset second performance indicator threshold respectively according to each community to be balanced, and carrying out load balancing adjustment between each community to be balanced and the corresponding N adjacent communities, wherein N is a positive integer which is more than 1. Consequently, the load balancing efficiency is increased, meanwhile, the service quality of the communities with low loads can be effectively ensured, so that balanced users can normally use the service, accordingly, the system service quality is ensured, the whole system performance is effectively improved, the safety, stability and capacity of the system are increased, and the system reaches an overall optimization state.
Description
Technical field
The present invention relates to the communications field, particularly a kind of method and device of in the LTE system, realizing load balancing.
Background technology
At LTE(Long Term Evolution, Long Term Evolution) in the communication system, the increase of cell load can affect the index performance of customer service, if can not reduce timely and effectively the load of residential quarter, when the load of system is increased to the warning line of system, will causes the rapid variation of performance of system even cause system crash; Simultaneously, because the load skewness, for the heavy load residential quarter, its resource that has is relatively deficient to cause user's service quality to can not get abundant guarantee easily, for the underload residential quarter, but has the situation of the wasting of resources.
For the problems referred to above, consult shown in Figure 1ly, at present, the solution that adopts in the LTE system is: each eNB is to O﹠amp; M(Operations﹠amp; Maintenance, operation and maintenance) report information on load separately, by O﹠amp; M carries out the decision-making of load balancing; Perhaps, pass through the mutual information on load separately of X2 interface between each eNB, and make the decision-making of load balancing, also need to be by O﹠amp after each eNB makes a policy; M confirms, just can carry out follow-up equalization operation by confirming rear eNB.
Obviously, what adopt under the prior art is to force balance policy, and namely each eNB must force the user equilibrium in the heavy load residential quarter to the underload residential quarter according to tactful content.Yet, do so the signal coverage varies of but not considering each residential quarter, might have a strong impact on systematic function.
For example: if with respect to for balanced user, the signal covering power of underload residential quarter a little less than, perhaps, there is not signal to cover, so, the user by equilibrium to the underload residential quarter, signal difference can appear, can't use smoothly professional situation, at this moment, the underload residential quarter can't guarantee user's service quality, can make the user be in the equilibrium state of rattling frequently when serious, namely between underload residential quarter and heavy load residential quarter repeatedly by equilibrium, obviously, can make like this user after the equilibrium can't normally use business, thereby seriously reduced the performance of system, affected Systems balanth.
In view of this, need to provide a kind of method of new load balancing to overcome defects.
Summary of the invention
The embodiment of the invention provides a kind of method and device of realizing load balancing in the LTE system, in order to improve the performance of system.
The concrete technical scheme that the embodiment of the invention provides is as follows:
In LTE, realize the method for load balancing, comprising:
In default monitoring period of time, periodically obtain KPI corresponding to each residential quarter that specifies the network element administration, wherein, KPI corresponding to each residential quarter is based on that the performance index of the respective cell of described reported by network elements generate;
Will be in described monitoring period of time, the residential quarter that the probability that KPI is higher than the first performance index thresholding of setting reaches default probability threshold is defined as treating balanced residential quarter;
According to each call log data for the treatment of balanced residential quarter, determine corresponding adjacent area and KPI corresponding to adjacent area that treats balanced residential quarter respectively;
Treat balanced residential quarter for each respectively, filter out N the adjacent area that KPI is lower than the second performance index thresholding of setting, and treat to carry out the load balancing adjustment between balanced residential quarter and corresponding N adjacent area at each respectively, N is the positive integer greater than 1.
In Long Term Evolution LTE, realize the device of load balancing, comprising:
Acquiring unit is used in default monitoring period of time, periodically obtains KPI Key Performance Indicator KPI corresponding to each residential quarter that specifies the network element administration, and wherein, KPI corresponding to each residential quarter is based on that the performance index of the respective cell of described reported by network elements generate;
Determining unit, being used for will be in described monitoring period of time, the residential quarter that the probability that KPI is higher than the first performance index thresholding of setting reaches default probability threshold is defined as treating balanced residential quarter, and respectively according to each call log data for the treatment of balanced residential quarter, determine corresponding adjacent area and KPI corresponding to adjacent area that treats balanced residential quarter;
Main control unit, be used for treating balanced residential quarter for each respectively, filter out N the adjacent area that KPI is lower than the second performance index thresholding of setting, and treat to carry out the load balancing adjustment between balanced residential quarter and corresponding N adjacent area at each respectively, N is the positive integer greater than 1.
In the embodiment of the invention, management devices is determined the KPI of each residential quarter according to performance index, will be in monitoring period of time the KPI probability that is higher than the first performance index thresholding of the setting residential quarter that reaches default probability threshold be defined as treating balanced residential quarter, and treat that for each balanced residential quarter filters out the adjacent area that N KPI is lower than the second default performance index thresholding respectively, and treat to carry out the load balancing adjustment between balanced residential quarter and corresponding N adjacent area at each respectively, N is the positive integer greater than 1; Like this, when having improved load balancing efficient, service quality that can effective guarantee underload residential quarter, make the user after the equilibrium can normally use business, thereby guaranteed the service quality of system, effectively improve the entire system performance, improved Security of the system, stability and capacity, made system reach the state of a total optimization.
Description of drawings
Fig. 1 is Solution Architecture schematic diagram under the prior art;
Fig. 2 is the general introduction flow chart of realizing the system loading equilibrium in the embodiment of the invention;
Fig. 3 is the detail flowchart of realizing the system loading equilibrium in the embodiment of the invention;
Fig. 4 is management devices illustrative view of functional configuration in the embodiment of the invention.
Embodiment
In order in the LTE system, to realize effective load balancing, in the embodiment of the invention, management devices can pass through at OMC(Operation and Maintenance Centre, operation maintenance center) performance data that each eNB that obtains in the database reports, load condition to the residential quarter of each eNB administration in the network carries out Real-Time Monitoring, and the performance index of determining to select monitoring in default monitoring period of time are when satisfying certain condition, automatically trigger the load balancing optimization analysis, according to analysis result the load balancing adjustment is carried out in each residential quarter again.
In the embodiment of the invention, management devices can be system's background server, also can be the independent device that carries out specially the load balancing adjustment that arranges, and can also be O﹠amp; A certain functional module among the M is not given unnecessary details one by one at this.
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is elaborated.
In the embodiment of the invention, at pretreatment stage, management devices can be set up acquisition tasks, by management control interface following parameter is set:
Network element object to be optimized; As, can be the eNB in the existing network of appointment;
Monitoring time scope (also claiming monitoring period of time); As, can specific to hour;
Call out more detailed logging: as, the cell ID of the Neighboring Relation Table of number of users, user ID and residential quarter of the current access in residential quarter and each adjacent area and performance data etc. can be comprised.
The performance data of statistics: as, can be every service feature data of residential quarter;
Network configuration data and collection period thereof; As, so-called network configuration data can comprise the residential quarter sign, Neighboring Relation Table, radio configuration parameters (as, the frequency range of use, signal sending/receiving power, service life cycle etc.);
The cell-level performance index of monitoring and thresholding corresponding to each performance index; As, the performance index of so-called appointment, can comprise a kind of or combination in any in following several index: the DL GBR PRB usage(Downlink Guaranteed Bit Rate Physical Resource Block usage of residential quarter, descending guarantee bit rate Physical Resource Block utilance), the UL GBR PRB usage(Uplink Guaranteed Bit Rate Physical Resource Block usage of residential quarter, up assurance bit rate Physical Resource Block utilance), the DL non-GBR PRB usage(Downlink Non-Guaranteed Bit Rate Physical Resource Block usage of residential quarter, descending non-assurance bit rate Physical Resource Block utilance), the UL non-GBR PRB usage(Uplink Non-Guaranteed Bit Rate Physical Resource Block usage of residential quarter, up non-assurance bit rate Physical Resource Block utilance), the DL Total PRB usage(Downlink total Physical Resource Block usage of residential quarter, descending total Physical Resource Block utilance) and the ULTotal PRB usage(Uplink total Physical Resource Block usage of residential quarter, up total Physical Resource Block utilance), wherein, corresponding thresholding of performance index.
After configuring above-mentioned parameters, management devices can periodically gather performance data and the network configuration data that each eNB reports in the corresponding monitoring period of time, and carries out harmony and judge.
Consult shown in Figure 2ly, in the embodiment of the invention, realize that the general introduction flow process of system loading equilibrium is as follows:
Step 200: management devices is in default monitoring period of time, periodically obtain KPI(Key Performance Indicator corresponding to each residential quarter that specifies the eNB administration, KPI Key Performance Indicator), wherein, KPI corresponding to each residential quarter is based on that the performance index of the respective cell that above-mentioned eNB reports generate.
(be called residential quarter A) as an example of any one residential quarter example, concrete, management devices can be in default monitoring period of time obtains the performance data of the residential quarter A that eNB reports by the OMC database, and periodically add up at least a performance index corresponding to residential quarter A based on the performance data that obtains according to preset configuration, and at least a performance index corresponding to the residential quarter A that will add up each time acquisition namely periodically gather the KPI of residential quarter A as the KPI(of the residential quarter A of each time statistics acquisition), wherein, preset configuration is used to indicate for residential quarter A to add up which kind performance index, can according to user's indication configuration, also can adopt the system default configuration; Further, the monitoring period of time of above-mentioned setting also can according to user's indication configuration, perhaps adopt the system default configuration.
Still take residential quarter A as example, in the present embodiment, the KPI of residential quarter A is designated as T, according to the statistics of performance data, T can comprise a kind of or combination in any in the following parameter:
DL GBR PRB average utilization=MAC(Media Access Control, media access control) for the DL GBR PRB number * 100% that DL GBR PRB total number/residential quarter A can use of residential quarter A scheduling.
UL GBR PRB average utilization=MAC is for the UL GBR PRB number * 100% that UL GBR PRB total number/residential quarter A can use of residential quarter A scheduling.
DL non-GBR PRB average utilization=MAC is for the DL non-GBR PRB number * 100% that DL non-GBR PRB total number/residential quarter A can use of residential quarter A scheduling.
UL non-GBR PRB average utilization=MAC is for the UL non-GBR PRB number * 100% that UL non-GBR PRB total number/residential quarter A can use of residential quarter A scheduling.
DL Total PRB average utilization=MAC is for the DL Total PRB number * 100% that DL Total PRB number/residential quarter A can use of residential quarter A total activation.
UL Total PRB average utilization=MAC is for the UL Total PRB number * 100% that UL Total PRB number/residential quarter A can use of residential quarter A total activation.
Step 210: management devices will be in above-mentioned monitoring period of time, and the residential quarter that the probability that KPI is higher than the first performance index thresholding of setting reaches corresponding probability threshold is defined as treating balanced residential quarter.
Still take residential quarter A as example, the KPI that supposes residential quarter A is designated as T, and the performance index thresholding of setting is designated as TH, then management devices is analyzed the accumulated probability distribution of KPI in monitoring period of time of residential quarter A, if in monitoring period of time, T〉probability of TH reaches default probability threshold, and then management devices is defined as treating balanced residential quarter with residential quarter A.
Above-mentioned only take residential quarter A as example, in the practical application, management devices can adopt aforesaid way that each residential quarter in the cell list is carried out the harmony judgement one by one, thereby obtains to treat balanced cell list.
On the other hand, still take residential quarter A as example, when whether management devices is higher than the first performance index thresholding of setting at the KPI that judges residential quarter A, that each performance index that the KPI with residential quarter A comprises compare with corresponding the first performance index cervical orifice of uterus limit respectively, be respectively corresponding first performance index cervical orifice of uterus limits of each performance index, each the first performance index cervical orifice of uterus limit is pre-configured by administrative staff, when management devices determines that any one performance index that the KPI of residential quarter A comprises are higher than corresponding primary energon thresholding, determine that the KPI of residential quarter A is higher than the first performance index thresholding of setting, namely no matter any performance index are higher than corresponding the first performance index cervical orifice of uterus limit, and management devices all can be defined as residential quarter A to treat balanced residential quarter.
Step 220: management devices is determined corresponding adjacent area and KPI corresponding to adjacent area that treats balanced residential quarter respectively according to each call log data for the treatment of balanced residential quarter.
Management devices can be analyzed the load condition of respectively treating balanced residential quarter by respectively treating the calling more detailed logging of balanced residential quarter.Concrete, management devices can be according to the ECGI(EUTRAN Cell Global Identity that treats balanced residential quarter, the universal mobile telecommunications system land radio access web cellular global identity of evolution) sign imports from the OMC database and respectively treats the calling more detailed logging of balanced residential quarter, and according to the definite KPI that respectively treats adjacent area and the adjacent area of balanced residential quarter of the calling more detailed logging that obtains, wherein, the content of the performance index that the KPI of adjacent area comprises is consistent with the content of the performance index that the KPI that treats balanced residential quarter comprises, and namely can be a kind of or combination in any (it is consistent with the KPI that treats balanced residential quarter specifically to choose mode) in the following parameter: the DLGBR PRB average utilization of adjacent area, the UL GBR PRB average utilization of adjacent area, the DL non-GBR PRB utilance of adjacent area, the DL Total PRB average utilization of the UL non-GBR PRB average utilization of adjacent area and residential quarter.
Step 230: management devices is treated balanced residential quarter for each respectively, filter out N the adjacent area that KPI is lower than the second performance index thresholding of setting, and treat to carry out the load balancing adjustment between balanced residential quarter and corresponding N adjacent area at each respectively, wherein, N for preset greater than 1 positive integer.
Concrete, (hereinafter referred to as residential quarter B) is as example take any one adjacent area, when whether management devices is lower than the second performance index thresholding of setting at the KPI that judges residential quarter B, that each performance index that the KPI with residential quarter B comprises compare with corresponding the second performance index cervical orifice of uterus limit respectively, be respectively corresponding second performance index cervical orifice of uterus limits of each performance index, each the second performance index cervical orifice of uterus limit is pre-configured by administrative staff, when each performance index that management devices comprises at the KPI that determines residential quarter B all are lower than corresponding primary energon thresholding, determine that the KPI of residential quarter B is lower than the second performance index thresholding of setting, namely only have all properties index all to be lower than corresponding the second performance index cervical orifice of uterus limit, management devices just can and treat at residential quarter B to carry out between the balanced residential quarter equilibrium adjustment.
For example, suppose that residential quarter, the adjacent area B of residential quarter A satisfies following 6 conditions, then management devices can be listed residential quarter B in the balanced Neighboring Cell List of quilt of residential quarter A:
Adjacent area DL GBR PRB average utilization≤TH
DL-GBR
Adjacent area UL GBR PRB average utilization≤TH
UL-GBR
Adjacent area DL non-GBR PRB average utilization≤TH
DLnon-GBR
Adjacent area UL non-GBR PRB average utilization≤TH
ULnon-GBR
Adjacent area DL Total PRB average utilization≤TH
DLnon-GBR
Adjacent area UL Total PRB average utilization≤TH
ULnon-GBR
Treat balanced residential quarter (the following residential quarter A that still is called) for any one, after filtering out KPI corresponding to residential quarter A and being lower than the residential quarter of the second performance index thresholding of setting, management devices can carry out prioritization to each adjacent area that filters out according to user's switching frequency order from high to low, the priority of adjacent domain that user's switching frequency is high is high, then, select again the highest top n adjacent area of user's switching frequency, prepare to carry out the load adjustment of follow-up minizone; Wherein, user's switching frequency refers to the current frequency of using professional user to carry out the minizone switching.
Further, management devices can be treated to carry out the load balancing adjustment between balanced residential quarter and corresponding N adjacent area at each respectively, still treat that with any one balanced residential quarter is residential quarter A, its any one adjacent area that filters out is that residential quarter B is example, consult shown in Figure 3ly when carrying out load balancing and adjust, management devices can be carried out following operation:
Steps A, management devices are formulated corresponding first according to the handoff parameter of residential quarter A and residential quarter B and are adjusted substrategy.
Concrete, management devices can adopt but be not limited in the following mode any one:
Does the first mode of operation: management devices need further to judge that the handoff parameter of residential quarter A and residential quarter B satisfies Mn+Ofn+Ocn-Hys＞Ms+Ofs+Ocs+Off? (being called the A3 event in the relevant criterion) wherein, Mn is the Reference Signal Received Power measurement result of adjacent cell, Ofn is the frequency shift (FS) of residential quarter B, Ocn is the residential quarter skew of residential quarter B, Hys is the sluggish parameter of A3 event, Ms is the Reference Signal Received Power measurement result of Serving cell, Ofs is the frequency shift (FS) of residential quarter A, Ocs is the residential quarter skew of residential quarter A, and Off is A3 event offset parameter.
If then management devices is determined the handoff parameter of residential quarter A and residential quarter B not to be adjusted, otherwise management devices is determined to increase Ofn and Ocn, and reduces Hys, Ofs, Ocs and Off.
Adopt aforesaid way to formulate first and adjust substrategy, management devices can indicate corresponding eNB that residential quarter A and residential quarter B are carried out the handoff parameter adjustment targetedly, thereby can play the effect of control handoff boundary, more be conducive to be positioned at the current of residential quarter A and B edge zone, residential quarter and use professional user to switch to rapidly residential quarter B.In like manner, management devices can adopt same way as to formulate corresponding the first adjustment substrategy for residential quarter A and N corresponding selected adjacent area thereof, thereby can be in the OL situation of residential quarter A, to be arranged in the current of residential quarter A and each edge zone, adjacent area and use professional user to switch to rapidly each selected adjacent area, and then reach the purpose that realizes load balancing.
Does the second mode of operation: management devices need further to judge that the handoff parameter of residential quarter A and residential quarter B satisfies Mn+Ofn+Ocn-Hys＞Thresh? (being called the A4 event in the relevant criterion), wherein Thresh was default thresholding.
If then management devices is determined the handoff parameter of residential quarter A and residential quarter B not to be adjusted, otherwise management devices is determined to increase Ofn and Ocn, and reduces Hys.
Adopt aforesaid way to formulate first and adjust substrategy, management devices can also indicate corresponding eNB that residential quarter A and residential quarter B are carried out the handoff parameter adjustment targetedly, thereby can play the effect of control handoff boundary, more be conducive to be positioned at the current of residential quarter A and B edge zone, residential quarter and use professional user to switch to rapidly residential quarter B.In like manner, management devices can adopt same way as to formulate corresponding the first adjustment substrategy for residential quarter A and each corresponding selected adjacent area thereof, thereby can be in the OL situation of residential quarter A, to be arranged in the current of residential quarter A and each edge zone, adjacent area and use professional user to switch to rapidly each selected adjacent area, and then reach the purpose that realizes load balancing.
Does the third mode of operation: management devices need further to judge whether the handoff parameter of residential quarter A and residential quarter B satisfies Ms+Hys＜Thresh1 and Mn+Ofn+Ocn-Hys＞Thresh2 simultaneously? (being called the A5 event in the relevant criterion), wherein Thresh1 and Thresh2 were default thresholding.
If then management devices is determined the handoff parameter of residential quarter A and residential quarter B not to be adjusted, otherwise management devices is determined to increase Ofn and Ocn, and reduces Hys.
Adopt aforesaid way to formulate first and adjust substrategy, management devices can also indicate corresponding eNB that residential quarter A and residential quarter B are carried out the handoff parameter adjustment targetedly, thereby can play the effect of control handoff boundary, more be conducive to be positioned at the current of residential quarter A and B edge zone, residential quarter and use professional user to switch to rapidly residential quarter B.In like manner, management devices can adopt same way as to formulate corresponding the first adjustment substrategy for residential quarter A and each corresponding selected adjacent area thereof, thereby can be in the OL situation of residential quarter A, to be arranged in the current of residential quarter A and each edge zone, adjacent area and use professional user to switch to rapidly each selected adjacent area, and then reach the purpose that realizes load balancing.
Step B: management devices issues above-mentioned the first adjustment strategy to the eNB of residential quarter A attributive eNB and residential quarter B ownership respectively, and order acquisition first is adjusted tactful eNB and according to tactful content the handoff parameter of residential quarter A and residential quarter B adjusted.
Adopt the method for above-mentioned steps A and step B record, management devices can be treated to carry out the load balancing adjustment between balanced residential quarter and the corresponding N adjacent area at each.Give unnecessary details no longer one by one at this.
In the above-described embodiments, in order to guarantee to adjust effect, better, management devices can be before issuing the first corresponding adjustment strategy to each eNB, the network configuration data that imports according to pretreatment stage judge formulate first adjust the value of the handoff parameter that comprises in the strategy whether in the number range of regulation, if then send first and adjust strategy; Otherwise, send again first after the first value of adjusting the handoff parameter in the strategy adjusted and adjust strategy.
Based on above-described embodiment, for safeguards system performance further, better, management devices can be after filtering out N adjacent area of correspondence for each until balanced residential quarter respectively, continue respectively to treat that for each balanced residential quarter sorts to a corresponding N adjacent area according to user's gravity treatment frequency order from high to low, and filtering out respectively M the highest adjacent area of user's gravity treatment frequency that each treats that balanced residential quarter is corresponding, M is the positive integer greater than 1; Then, treat to carry out the load balancing adjustment between balanced residential quarter and corresponding M adjacent area at each respectively.
For example, treat that with any one balanced residential quarter is residential quarter A, be example and any one adjacent area is residential quarter C, when management devices carries out the load balancing adjustment between residential quarter A and residential quarter C, can formulate corresponding second according to the reselecting parameters of residential quarter C and adjust strategy, and it is tactful to issue above-mentioned the second adjustment to the eNB that residential quarter C belongs to, and order obtains the tactful eNB of the second adjustment and carries out the reselecting parameters adjustment according to tactful content; Wherein, better, the second adjustment strategy of formulating can be: the Qoffet(deviant that increases residential quarter C), like this, management devices can indicate corresponding eNB that residential quarter C is carried out the reselecting parameters adjustment targetedly, thereby can play the effect on control gravity treatment border, the free subscriber (being the current professional user that do not use) that more is conducive to be positioned at residential quarter A and C edge zone, residential quarter reselects to rapidly residential quarter C.
In like manner, management devices can adopt same way as to formulate corresponding the second adjustment substrategy for residential quarter A and M corresponding selected adjacent area thereof, thereby can be in the OL situation of residential quarter A, the free subscriber that will be arranged in residential quarter A and each edge zone, adjacent area reselects to rapidly each selected adjacent area, and then reaches the purpose that realizes load balancing.
Further, better, management devices can be before issuing the second corresponding adjustment strategy to each eNB, the network configuration data that imports according to pretreatment stage judge formulate second adjust the value of the reselecting parameters that comprises in the strategy whether in the number range of regulation, if then send second and adjust strategy; Otherwise, send again second after the 21 value of adjusting the reselecting parameters in the strategy adjusted and adjust strategy.
In the above-described embodiments, management devices is formulated first and is adjusted the flow process of strategy and the flow process that strategy is adjusted in formulation second, can successively carry out, and also can carry out simultaneously, and each the first adjustment strategy of formulating and each the second adjustment strategy can independently issue separately, also can merge to issue.Issue as example with merging, management devices can be adjusted strategy and second with first and adjust the tactful eNB that the Radio Parameter Adjustment worker singly is issued to correspondence that merges into, and determine whether success of adjusting operation according to the feedback of eNB, wherein, adjust life and can make the employing script mode realize, issue by the inside story interface.
Based on above-described embodiment, in follow-up flow process, management devices can continue to monitor the network performance after the adjustment, and whether assessment is because the cell load index deterioration that wireless parameter (being that handoff parameter is or/and reselecting parameters) unreasonable allocation causes.If load performance improves, illustrate that then load imbalance is caused by the wireless parameter unreasonable allocation, and if load performance does not improve, then point out the network optimization engineer need to adopt other optimization means.
Based on above-described embodiment, to consult shown in Figure 4ly, in the embodiment of the invention, management devices comprises acquiring unit 40, determining unit 41 and main control unit 42, wherein,
Acquiring unit 40 is used in default monitoring period of time, periodically obtains KPI corresponding to each residential quarter that specifies the network element administration, and wherein, KPI corresponding to each residential quarter is based on that the performance index of the respective cell of reported by network elements generate;
Determining unit 41, being used for will be in monitoring period of time, the residential quarter that the probability that KPI is higher than the first performance index thresholding of setting reaches default probability threshold is defined as treating balanced residential quarter, and respectively according to each call log data for the treatment of balanced residential quarter, determine corresponding adjacent area and KPI corresponding to adjacent area that treats balanced residential quarter;
The method of putting down in writing among the performed concrete operations of above-mentioned acquiring unit 40, determining unit 41 and main control unit 42 and the embodiment is corresponding, does not give unnecessary details one by one at this.
In sum, in the embodiment of the invention, management devices is determined the KPI of each residential quarter according to performance index, will be in monitoring period of time the KPI probability that is higher than the first performance index thresholding of the setting residential quarter that reaches default probability threshold be defined as treating balanced residential quarter, and treat that for each balanced residential quarter filters out the adjacent area that N KPI is lower than the second default performance index thresholding respectively, and treat to carry out the load balancing adjustment between balanced residential quarter and corresponding N adjacent area at each respectively, N is the positive integer greater than 1; Like this, when having improved load balancing efficient, service quality that can effective guarantee underload residential quarter, make the user after the equilibrium can normally use business, thereby guaranteed the service quality of system, effectively improve the entire system performance, improved Security of the system, stability and capacity, made system reach the state of a total optimization.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, complete implement software example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form of the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device producing a machine, so that the instruction of carrying out by the processor of computer or other programmable data processing device produces the device of the function that is used for being implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, so that the instruction that is stored in this computer-readable memory produces the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, so that carry out the sequence of operations step producing computer implemented processing at computer or other programmable devices, thereby be provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction that computer or other programmable devices are carried out.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative concept of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the embodiment of the invention and not break away from the spirit and scope of the embodiment of the invention.Like this, if these of the embodiment of the invention are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (24)
1. in Long Term Evolution LTE, realize the method for load balancing, it is characterized in that, comprising:
In default monitoring period of time, periodically obtain KPI Key Performance Indicator KPI corresponding to each residential quarter that specifies the network element administration, wherein, KPI corresponding to each residential quarter is based on that the performance index of the respective cell of described reported by network elements generate;
Will be in described monitoring period of time, the residential quarter that the probability that KPI is higher than the first performance index thresholding of setting reaches default probability threshold is defined as treating balanced residential quarter;
According to each call log data for the treatment of balanced residential quarter, determine corresponding adjacent area and KPI corresponding to adjacent area that treats balanced residential quarter respectively;
Treat balanced residential quarter for each respectively, filter out N the adjacent area that KPI is lower than the second performance index thresholding of setting, and treat to carry out the load balancing adjustment between balanced residential quarter and corresponding N adjacent area at each respectively, N is the positive integer greater than 1.
2. the method for claim 1 is characterized in that, in default monitoring period of time, periodically obtain KPI corresponding to any one residential quarter, wherein, described KPI corresponding to any one residential quarter is based on that the performance index of this any one residential quarter of reported by network elements generate, and comprising:
In default monitoring period of time, obtain the performance data of described any one residential quarter of reported by network elements by operation maintenance center's OMC database;
Periodically add up at least a performance index corresponding to described any one residential quarter based on the performance data that obtains according to preset configuration;
At least a performance index that described any one residential quarter of each time statistics acquisition is corresponding are as the KPI of described any one residential quarter of each time statistics acquisition.
3. the method for claim 1 is characterized in that, determines that the KPI of any one residential quarter is higher than the first performance index thresholding of setting, comprising:
Each performance index that the KPI of described any one residential quarter is comprised compare with corresponding the first performance index cervical orifice of uterus limit respectively;
Determine that at least a performance index that the KPI of described residential quarter comprises reach corresponding the first performance index cervical orifice of uterus in limited time, determine that the KPI of described residential quarter reaches described the first performance index thresholding.
4. the method for claim 1 is characterized in that, determines that any one KPI that treats any one adjacent area of balanced residential quarter is lower than the second performance index thresholding of setting, comprising:
Each performance index that the KPI of described any one adjacent area is comprised compare with corresponding the second performance index cervical orifice of uterus limit respectively;
When determining that each performance index that the KPI of described any one adjacent area comprises all are lower than corresponding primary energon thresholding, determine that the KPI of described any one adjacent area is lower than the second performance index thresholding of setting.
5. method as claimed in claim 4 is characterized in that, for described any one treat balanced adjacent area, filter out N the adjacent area that KPI is lower than the second performance index thresholding of setting, comprising:
Determine described any one treat that all KPI corresponding to balanced residential quarter are lower than the adjacent area of the second performance index thresholding of setting;
According to user's switching frequency order from high to low sorted in each adjacent area;
Filter out N the highest adjacent area of user's switching frequency.
6. such as each described method of claim 1-5, it is characterized in that, between any one treats any one adjacent area in balanced residential quarter and corresponding N the adjacent area, carry out the load balancing adjustment, comprising:
According to described any one treat that the handoff parameter of balanced residential quarter and described any one adjacent area formulates corresponding first and adjust strategy;
Respectively to described any one treat that the network element of balanced residential quarter ownership and the network element that described any one adjacent area belongs to separately issue described first and adjust strategy, order obtains the described first network element of adjusting strategy and carries out the handoff parameter adjustment according to tactful content.
7. method as claimed in claim 6 is characterized in that, according to described any one treat that the handoff parameter of balanced residential quarter and described any one adjacent area formulates corresponding first and adjust substrategy, comprising:
Judge described any one treat that the handoff parameter of balanced residential quarter and described any one adjacent area satisfies Mn+Ofn+Ocn-Hys＞Ms+Ofs+Ocs+Off? wherein, Mn is the Reference Signal Received Power measurement result of adjacent cell, Ofn is the frequency shift (FS) of described any one adjacent area, Ocn is the residential quarter skew of described any one adjacent area, Hys is sluggish parameter, Ms is the Reference Signal Received Power measurement result of Serving cell, Ofs be described any one treat the frequency shift (FS) of balanced residential quarter, Ocs be described any one treat the residential quarter skew of balanced residential quarter, Off is offset parameter; If then determine handoff parameter not to be adjusted; Otherwise, determine to increase described Ofn and Ocn, and reduce described Hys, Ofs, Ocs and Off; Perhaps,
Judge described any one treat that the handoff parameter of balanced residential quarter and described any one adjacent area satisfies Mn+Ofn+Ocn-Hys＞Thresh? wherein, Thresh is default thresholding; If then determine handoff parameter not to be adjusted; Otherwise, then determine to increase described Ofn and Ocn, and reduce described Hys; Perhaps,
Judge described any one treat whether the handoff parameter of balanced residential quarter and described any one adjacent area satisfies Ms+Hys＜Thresh1 and Mn+Ofn+Ocn-Hys＞Thresh2 simultaneously? wherein, Thresh1 and Thresh2 are default thresholding; If then determine handoff parameter not to be adjusted; Otherwise, determine to increase described Ofn and Ocn, and reduce described Hys.
8. method as claimed in claim 6 is characterized in that, to described any one treat that the network element of balanced residential quarter ownership and the network element that described any one adjacent area belongs to separately issue described first and adjust strategy, comprising:
Do you judge that according to default network configuration data the value that makes the tactful handoff parameter that comprises of described the first adjustment is in the number range of regulation?
If then directly send described first and adjust strategy; Otherwise, send again described first after the described first value of adjusting the handoff parameter that strategy comprises adjusted and adjust strategy.
9. such as each described method of claim 1-5, it is characterized in that, further comprise:
After filtering out N adjacent area of correspondence for each until balanced residential quarter respectively, continue respectively to treat that for each balanced residential quarter sorts to a corresponding N adjacent area according to user's gravity treatment frequency order from high to low, and filtering out respectively M the highest adjacent area of user's gravity treatment frequency that each treats that balanced residential quarter is corresponding, M is the positive integer greater than 1;
Treat to carry out the load balancing adjustment between balanced residential quarter and corresponding M adjacent area at each respectively.
10. method as claimed in claim 9 is characterized in that, carries out the load balancing adjustment between any one treats any one adjacent area in balanced residential quarter and corresponding M the adjacent area, comprising:
Formulate corresponding second according to the reselecting parameters of described any one adjacent area and adjust strategy;
Network element to described any one adjacent area ownership issues described the second adjustment strategy, and order acquisition described second is adjusted tactful network element and carried out the reselecting parameters adjustment according to tactful content.
11. method as claimed in claim 10 is characterized in that, formulates corresponding second according to the reselecting parameters of described any one adjacent area and adjusts substrategy, comprising:
Increase the deviant Qoffet of described any one adjacent area.
12. method as claimed in claim 10 is characterized in that, the network element that belongs to described any one adjacent area issues described first and adjusts strategy, comprising:
Do you judge that according to default network configuration data the value that makes the tactful reselecting parameters that comprises of described the second adjustment is in the number range of regulation?
If then directly send described second and adjust strategy; Otherwise, send again described second after the described second value of adjusting the reselecting parameters that strategy comprises adjusted and adjust strategy.
13. in Long Term Evolution LTE, realize the device of load balancing, it is characterized in that, comprising:
Acquiring unit is used in default monitoring period of time, periodically obtains KPI Key Performance Indicator KPI corresponding to each residential quarter that specifies the network element administration, and wherein, KPI corresponding to each residential quarter is based on that the performance index of the respective cell of described reported by network elements generate;
Determining unit, being used for will be in described monitoring period of time, the residential quarter that the probability that KPI is higher than the first performance index thresholding of setting reaches default probability threshold is defined as treating balanced residential quarter, and respectively according to each call log data for the treatment of balanced residential quarter, determine corresponding adjacent area and KPI corresponding to adjacent area that treats balanced residential quarter;
Main control unit, be used for treating balanced residential quarter for each respectively, filter out N the adjacent area that KPI is lower than the second performance index thresholding of setting, and treat to carry out the load balancing adjustment between balanced residential quarter and corresponding N adjacent area at each respectively, N is the positive integer greater than 1.
14. device as claimed in claim 13, it is characterized in that, described acquiring unit is in default monitoring period of time, periodically obtain KPI corresponding to any one residential quarter, wherein, described KPI corresponding to any one residential quarter is based on that the performance index of this any one residential quarter of reported by network elements generate, and comprising:
In default monitoring period of time, obtain the performance data of described any one residential quarter of reported by network elements by operation maintenance center's OMC database;
Periodically add up at least a performance index corresponding to described any one residential quarter based on the performance data that obtains according to preset configuration;
At least a performance index that described any one residential quarter of each time statistics acquisition is corresponding are as the KPI of described any one residential quarter of each time statistics acquisition.
15. device as claimed in claim 13 is characterized in that, described determining unit determines that the KPI of any one residential quarter is higher than the first performance index thresholding of setting, comprising:
Each performance index that the KPI of described any one residential quarter is comprised compare with corresponding the first performance index cervical orifice of uterus limit respectively;
Determine that at least a performance index that the KPI of described residential quarter comprises reach corresponding the first performance index cervical orifice of uterus in limited time, determine that the KPI of described residential quarter reaches described the first performance index thresholding.
16. device as claimed in claim 13 is characterized in that, described determining unit determines that any one KPI that treats any one adjacent area of balanced residential quarter is lower than the second performance index thresholding of setting, comprising:
Each performance index that the KPI of described any one adjacent area is comprised compare with corresponding the second performance index cervical orifice of uterus limit respectively;
When determining that each performance index that the KPI of described any one adjacent area comprises all are lower than corresponding primary energon thresholding, determine that the KPI of described any one adjacent area is lower than the second performance index thresholding of setting.
17. device as claimed in claim 16 is characterized in that, described main control unit for described any one treat balanced adjacent area, filter out N the adjacent area that KPI is lower than the second performance index thresholding of setting, comprising:
Determine described any one treat that all KPI corresponding to balanced residential quarter are lower than the adjacent area of the second performance index thresholding of setting;
According to user's switching frequency order from high to low sorted in each adjacent area;
Filter out N the highest adjacent area of user's switching frequency.
18., it is characterized in that described main control unit carries out the load balancing adjustment between any one treats any one adjacent area in balanced residential quarter and corresponding N the adjacent area, comprising such as each described device of claim 13-17:
According to described any one treat that the handoff parameter of balanced residential quarter and described any one adjacent area formulates corresponding first and adjust strategy;
Respectively to described any one treat that the network element of balanced residential quarter ownership and the network element that described any one adjacent area belongs to separately issue described first and adjust strategy, order obtains the described first network element of adjusting strategy and carries out the handoff parameter adjustment according to tactful content.
19. device as claimed in claim 18 is characterized in that, described main control unit according to described any one treat that the handoff parameter of balanced residential quarter and described any one adjacent area formulates corresponding first and adjust substrategy, comprising:
Judge described any one treat that the handoff parameter of balanced residential quarter and described any one adjacent area satisfies Mn+Ofn+Ocn-Hys＞Ms+Ofs+Ocs+Off? wherein, Mn is the Reference Signal Received Power measurement result of adjacent cell, Ofn is the frequency shift (FS) of described any one adjacent area, Ocn is the residential quarter skew of described any one adjacent area, Hys is sluggish parameter, and Ms is the Reference Signal Received Power measurement result of Serving cell
, Ofs be described any one treat the frequency shift (FS) of balanced residential quarter, Ocs be described any one treat the residential quarter skew of balanced residential quarter, Off is offset parameter; If then determine handoff parameter not to be adjusted; Otherwise, determine to increase described Ofn and Ocn, and reduce described Hys, Ofs, Ocs and Off; Perhaps,
Judge described any one treat that the handoff parameter of balanced residential quarter and described any one adjacent area satisfies Mn+Ofn+Ocn-Hys＞Thresh? wherein, Thresh is default thresholding; If then determine handoff parameter not to be adjusted; Otherwise, then determine to increase described Ofn and Ocn, and reduce described Hys; Perhaps,
Judge described any one treat whether the handoff parameter of balanced residential quarter and described any one adjacent area satisfies Ms+Hys＜Thresh1 and Mn+Ofn+Ocn-Hys＞Thresh2 simultaneously? wherein, Thresh1 and Thresh2 are default thresholding; If then determine handoff parameter not to be adjusted; Otherwise, determine to increase described Ofn and Ocn, and reduce described Hys.
20. device as claimed in claim 18 is characterized in that, described main control unit to described any one treat that the network element of balanced residential quarter ownership and the network element that described any one adjacent area belongs to separately issue described first and adjust strategy, comprising:
Do you judge that according to default network configuration data the value that makes the tactful handoff parameter that comprises of described the first adjustment is in the number range of regulation?
If then directly send described first and adjust strategy; Otherwise, send again described first after the described first value of adjusting the handoff parameter that strategy comprises adjusted and adjust strategy.
21. such as each described device of claim 13-17, it is characterized in that described main control unit is further used for:
After filtering out N adjacent area of correspondence for each until balanced residential quarter respectively, continue respectively to treat that for each balanced residential quarter sorts to a corresponding N adjacent area according to user's gravity treatment frequency order from high to low, and filtering out respectively M the highest adjacent area of user's gravity treatment frequency that each treats that balanced residential quarter is corresponding, M is the positive integer greater than 1;
Treat to carry out the load balancing adjustment between balanced residential quarter and corresponding M adjacent area at each respectively.
22. device as claimed in claim 21 is characterized in that, described main control unit carries out the load balancing adjustment between any one treats any one adjacent area in balanced residential quarter and corresponding M the adjacent area, comprising:
Formulate corresponding second according to the reselecting parameters of described any one adjacent area and adjust strategy;
Network element to described any one adjacent area ownership issues described the second adjustment strategy, and order acquisition described second is adjusted tactful network element and carried out the reselecting parameters adjustment according to tactful content.
23. device as claimed in claim 22 is characterized in that, described main control unit is formulated corresponding second according to the reselecting parameters of described any one adjacent area and is adjusted substrategy, comprising:
Increase the deviant Qoffet of described any one adjacent area.
24. device as claimed in claim 22 is characterized in that, described main control unit issues described the first adjustment strategy to the network element of described any one adjacent area ownership, comprising:
Do you judge that according to default network configuration data the value that makes the tactful reselecting parameters that comprises of described the second adjustment is in the number range of regulation?
If then directly send described second and adjust strategy; Otherwise, send again described second after the described second value of adjusting the reselecting parameters that strategy comprises adjusted and adjust strategy.
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