CN103987085A - Inter-cell mobility load balance method and mobility load balance device - Google Patents

Inter-cell mobility load balance method and mobility load balance device Download PDF

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CN103987085A
CN103987085A CN201310049344.7A CN201310049344A CN103987085A CN 103987085 A CN103987085 A CN 103987085A CN 201310049344 A CN201310049344 A CN 201310049344A CN 103987085 A CN103987085 A CN 103987085A
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adjacent area
serving cell
users
balanced
resource occupation
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CN103987085B (en
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唐加强
刘保卫
陆姜旻
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The embodiment of the invention discloses an inter-cell mobility load balance method and the embodiment of the invention also discloses a mobility load balance device. The method includes the following steps: a service base station measuring a user number occupation ratio and a resource occupation ratio of a service cell and when the user number occupation ratio b1 of the service cell exceeds a corresponding threshold t1 or the resource occupation ratio b2 exceeds a corresponding threshold t2, obtaining user number occupation ratios and resource occupation ratios of all adjacent cells of the service cell; and according to user number occupation ratio difference values and resource occupation ratio difference values of the service cell and the adjacent cells of the service cell, selecting a first adjacent cell from all the adjacent cells to carry out load balance processing with the service cell, wherein the load balance processing includes at least one of user number balancing and resource load balancing. Compared with the prior balance methods, the inter-cell mobility load balance method is lower in complexity and capable of better maintaining system balance and stability and ensuring service quality to all users and providing a flexible load balance processing method to operators.

Description

The method of minizone moving load equilibrium and moving load balancer
Technical field
The present invention relates to communication technical field, relate in particular to method and the moving load balancer of a kind of minizone moving load equilibrium.
Background technology
Self-organizing network (Self-Organization Network, SON) mainly comprises three parts, self-configuring, self-optimizing and healing certainly.In the related protocol of self-optimizing part and white paper, mainly comprise mobile robustness optimization (Mobility Robust Optimization, MRO), moving load balanced (Mobility Load Balance, MLB).MRO realizes the optimization of handoff threshold parameter, reduces too early, crosses evening and pingpang handoff; MLB adjusts by the handoff parameter of user class, allows the reason of specific user based on load be switched to Target cell, reaches network load balance, stabilizing network business, improves user's overall feeling object.
Existing MLB only considers resources occupation rate, comprises Physical Resource Block (Physical Resource Block, PRB) occupancy, the indication of hardware (Hardware, HW) load, transmission load (Transport Network Load, TNL) indication.Actual main is PRB occupancy.Existing MLB flow process is as follows:
1) measure the load of Serving cell, if overload balanced thresholding, enter MLB flow process.2) Target cell that meets MLB switching condition, to the load of each adjacent area of request, all adjacent areas, is determined in Serving cell.3) the edge customer equipment (User Equipment, UE) of traversal Serving cell and Target cell crossover region, selection can reduce Serving cell load, can not cause again the UE of table tennis MLB.4) Cell Individual Offset (Cell Individual Offset, CIO) of initiating in the direction of adjacent area is adjusted, and triggering terminal arrives Target cell based on resource load switching.
Prior art is only considered the resource load of current reality, but online user's online and downloading service have sudden and dynamic change, cause the very risky of pingpang handoff, so the equilibrium of system and poor stability, has also reduced QoS of customer.
In addition, the diversity of mobile subscriber, fixed-line subscriber also makes to be difficult to critic network actual effect according to the resource load of current reality, cannot bring comprehensive performance boost.For example, operator generally provides two kinds of set meal scenes: a) not speed limit rate and flow of monthly payment.In this case, the fluctuation of user's burst service is severe, may take whole community PRB resource.B) monthly payment speed limit rate and flow.In this case, the maximum rate fluctuation range of single terminal is little, relatively stable.Prior art is only applicable to b scene, but cannot comprehensively take into account a scene.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, the method and apparatus of a kind of minizone moving load equilibrium is provided, and to solve in existing MLB technology, cannot take into account all users' service quality, the equilibrium of system and the problem of poor stability.
In order to solve the problems of the technologies described above, first aspect, provides the method for a kind of minizone moving load equilibrium, comprising:
The number of users that serving BS is measured Serving cell take than with resource occupation ratio, number of users when described Serving cell takies than b1 over corresponding thresholding t1, or when resource occupation surpasses corresponding thresholding t2 than b2, the number of users that obtains all adjacent areas of described Serving cell take than with resource occupation ratio;
According to the number of users of described Serving cell and each adjacent area, described Serving cell, take than difference and resource occupation and compare difference, from described all adjacent areas, choose the first adjacent area and load balancing processing is carried out in described Serving cell, at least one comprising in the balanced and balancing resource load of number of users processed in described load balancing.
As the possible implementation of the first of described first aspect, described in obtain described Serving cell number of users take than comprising with resource occupation ratio:
Described serving BS sends resource status request to the base station of described each adjacent area, and the number of users that described resource status request carries described each adjacent area of request takies than the indication with resource occupation ratio;
Described serving BS receives the resource status updating message that the base station of described each adjacent area sends, the number of users that described resource status updating message carries described each adjacent area take than with resource occupation ratio.
As the possible implementation of the second of described first aspect, describedly from described all adjacent areas, choose the first adjacent area and comprise:
From described all adjacent areas, choose balanced adjacent area and form the set of balanced adjacent area, wherein, number of users when described Serving cell takies than b1 over corresponding thresholding t1, or when the resource occupation of described Serving cell surpasses corresponding thresholding t2 than b2, described balanced adjacent area all meets the following conditions: described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described balanced adjacent area, or described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described balanced adjacent area than difference;
From the set of described balanced adjacent area, choose any one balanced adjacent area meeting the following conditions as described the first adjacent area: when described b1 surpasses described t1, described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described the first adjacent area; Or when described b2 surpasses described t2, described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described the first adjacent area than difference.
In conjunction with the possible implementation of the second of described first aspect, the third possible implementation of described first aspect is also provided, described the first adjacent area and the described Serving cell chosen from described all adjacent areas carried out load balancing and processed and comprise:
(if B1 * U-B2 * R) >h, it is balanced that number of users is carried out in described Serving cell and described the first adjacent area; If | B1 * U-B2 * R|≤h, balanced the and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; (if B1 * U-B2 * R) <h, Workload Balance is carried out in described Serving cell and described the first adjacent area; Wherein, to be described Serving cell take and compare difference with the number of users of described the first adjacent area B1; B2 is that difference is compared with the resource occupation of described the first adjacent area in described Serving cell; H>0, it is configured to limit the probability that the balanced and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; U is illustrated in the weight of number of users equilibrium while carrying out load balancing processing; R is illustrated in the weight of Workload Balance while carrying out load balancing processing; And U and R's and be 1.
The third possible implementation in conjunction with described first aspect, the 4th kind of possible implementation of described first aspect is also provided, described Serving cell carries out with described the first adjacent area that number of users is balanced to be comprised: described serving BS sends handover request to the base station of described the first adjacent area balanced to carry out the number of users of described Serving cell and described the first adjacent area, and this handover request carries and takies than the cause value of request switching because of number of users; Described Serving cell and described the first adjacent area are carried out the balanced and Workload Balance of number of users simultaneously and are comprised: described serving BS sends handover request to carry out number of users equilibrium and the Workload Balance of described Serving cell and described the first adjacent area to the base station of described the first adjacent area, this handover request carry because of number of users take than with resource occupation than the cause value of request switching.
In conjunction with the third or the 4th kind of possible implementation of described first aspect, the 5th kind of possible implementation of described first aspect is also provided, after described method, also comprise:
Measure the current CU in described Serving cell than b3 and resource occupation than b4, judge whether to meet: described b3 surpasses described t1, or described b4 surpasses described t2; If do not met, load balancing is finished dealing with, if met,: any one balanced adjacent area of choosing non-described the first adjacent area from described balanced adjacent area set is as the second adjacent area, the CU current according to described Serving cell compares b4 than b3 and resource occupation, and the number of users of current and described the second adjacent area, described Serving cell takies than difference B3 and resource occupation and judges whether to meet than difference B4: when described b3 surpasses described t1, described B3 surpasses described T1; Or when described b4 surpasses described t2, described B4 surpasses described T2; If met,, according to the value of (B3 * U-B4 * R) and the difference of h, determine which kind of load balancing processing described Serving cell and described the second adjacent area carry out.
Second aspect, provides a kind of moving load balancer, comprising:
The first measuring unit, for measure the number of users of Serving cell take than with resource occupation ratio;
The first trigger element, takies than b1 and surpasses corresponding thresholding t1 for the number of users in described Serving cell, or resource occupation is while surpassing corresponding thresholding t2 than b2, triggers following the first acquiring unit;
The first acquiring unit, for obtain the number of users of all adjacent areas of described Serving cell take than with resource occupation ratio;
The first processing unit, for taking than difference and resource occupation and compare difference according to the number of users of described Serving cell and each adjacent area, described Serving cell, from described all adjacent areas, choose the first adjacent area and load balancing processing is carried out in described Serving cell, at least one comprising in the balanced and balancing resource load of number of users processed in described load balancing.
As the possible implementation of the first of described second aspect, described the first acquiring unit comprises:
Send subelement, for the base station to described each adjacent area, send resource status request, the number of users that described resource status request carries described each adjacent area of request takies than the indication with resource occupation ratio; Receive subelement, the resource status updating message sending for receiving the base station of described each adjacent area, the number of users that described resource status updating message carries described each adjacent area take than with resource occupation ratio.
As the possible implementation of the second of described second aspect, described the first processing unit comprises:
Set generates subelement, for choose balanced adjacent area from described all adjacent areas, form the set of balanced adjacent area, wherein, number of users when described Serving cell takies than b1 over corresponding thresholding t1, or when the resource occupation of described Serving cell surpasses corresponding thresholding t2 than b2, described balanced adjacent area all meets the following conditions: described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described balanced adjacent area, or described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described balanced adjacent area than difference; Choose subelement, for choosing any one balanced adjacent area meeting the following conditions from the set of described balanced adjacent area as described the first adjacent area: when described b1 surpasses described t1, described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described the first adjacent area; Or when described b2 surpasses described t2, described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described the first adjacent area than difference.
In conjunction with the possible implementation of the second of described second aspect, the third possible implementation of described second aspect is also provided, described the first processing unit also comprises: balanced subelement, for determining that according to the value of (B1 * U-B2 * R) and the difference of h which kind of load balancing processing described Serving cell and described the first adjacent area carry out, and comprising:
(if B1 * U-B2 * R) >h, it is balanced that number of users is carried out in described Serving cell and described the first adjacent area; If | B1 * U-B2 * R|≤h, balanced the and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; (if B1 * U-B2 * R) <h, Workload Balance is carried out in described Serving cell and described the first adjacent area; Wherein, to be described Serving cell take and compare difference with the number of users of described the first adjacent area B1; B2 is that difference is compared with the resource occupation of described the first adjacent area in described Serving cell; H>0, it is configured to limit the probability that the balanced and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; U is illustrated in the weight of number of users equilibrium while carrying out load balancing processing; R is illustrated in the weight of Workload Balance while carrying out load balancing processing; And U and R's and be 1.
In conjunction with the third possible implementation of described second aspect, the 4th kind of possible implementation of described second aspect is also provided, described balanced subelement comprises:
Sending module, for the base station to described the first adjacent area, sending handover request processes to carry out the load balancing of described Serving cell and described the first adjacent area, wherein: when (B1 * U-B2 * R) >h, described handover request carries because number of users takies the cause value switching than request, balanced with the number of users of described the first adjacent area to carry out described Serving cell; When B1 * U-B2 * R|≤h, described handover request carries because number of users takies than the cause value switching than request with resource occupation, to carry out the balanced and Workload Balance of the number of users of described Serving cell and described the first adjacent area.
In conjunction with the third or the 4th kind of possible implementation of described second aspect, the 5th kind of possible implementation of described second aspect is also provided, described device also comprises:
The second measuring unit, for executing in described Serving cell and described the first adjacent area after load balancing processes, measures the current CU in described Serving cell and compares b4 than b3 and resource occupation; The second trigger element, meets for judging whether: described b3 surpasses described t1, or described b4 surpasses described t2; If do not met, load balancing is finished dealing with, if met, triggers following the second processing unit; The second processing unit, any one the balanced adjacent area that is used for choosing non-described the first adjacent area from described balanced adjacent area set is as the second adjacent area, the CU current according to described Serving cell compares b4 than b3 and resource occupation, and the number of users of current and described the second adjacent area, described Serving cell takies than difference B3 and resource occupation and judges whether to meet than difference B4: when described b3 surpasses described t1, described B3 surpasses described T1; Or when described b4 surpasses described t2, described B4 surpasses described T2, if met,, according to the value of (B3 * U-B4 * R) and the difference of h, determine which kind of load balancing processing described Serving cell and described the second adjacent area carry out.
Implement the embodiment of the present invention, there is following beneficial effect: the method that the embodiment of the present invention provides is lower with respect to the complexity of the equalization methods of loading based on resource separately; By considering actual user's number and real resource load, carry out MLB, equilibrium that can better maintenance system is with stable, and taken into account the service quality to all users; Simultaneously for operator provides load balancing processing mode flexibly under the different strategies of distributing telephone numbers, terminal type.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is according to the schematic flow sheet of the minizone moving load equalization methods of an embodiment of the present invention;
Fig. 2 is according to the schematic flow sheet of the minizone moving load equalization methods of an embodiment of the present invention;
Fig. 3 A is according to the structural representation of the moving load balancer of an embodiment of the present invention;
Fig. 3 B is according to the structural representation of the first acquiring unit of Fig. 3 A illustrated embodiment;
Fig. 3 C is according to the structural representation of the first processing unit of Fig. 3 A illustrated embodiment;
Fig. 4 is according to the structural representation of the moving load balancer of an embodiment of the present invention;
Fig. 5 is according to the structural representation of the moving load balancer of an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is that with reference to Fig. 1, the method comprises according to the schematic flow sheet of the minizone moving load equalization methods of an embodiment of the present invention:
100: the number of users that serving BS is measured Serving cell take than with resource occupation ratio, number of users when described Serving cell takies than b1 over corresponding thresholding t1, or when resource occupation surpasses corresponding thresholding t2 than b2, the number of users that obtains all adjacent areas of described Serving cell take than with resource occupation ratio.
Optionally, it is periodically that serving BS takies than the measurement with resource occupation ratio for number of users, for example, every 1 second, measure once with upgrade number of users take than with resource occupation ratio.
Optionally, described serving BS travels through the neighbor cell configuration list of described Serving cell, so with the number of users that the order of described neighbor cell configuration list is obtained all adjacent areas of described Serving cell take than with resource occupation ratio.
The present invention will be described for clearer, for some nouns (comprising prior art noun), is explained as follows:
Number of users takies ratio: actual activated state number of users and community activated state number of users maximum specification percent value.As 20M TDD community, activated state number of users maximum specification is assumed to be 1000, actual activation 200, and CU ratio is 20%.
Resource occupation ratio: real system distributes the percentage of the total RB number of resources of Resource Block (Resource Block, the RB) number of resources of use and community to online user.As 20M TDD community, RB number of resources is 100, actually takies 60, and resource occupation ratio is 60%.
Number of users is balanced: two minizones, are all the equalization methods of adjustment aim mutually with number of users.
Workload Balance: two minizones, are all the equalization methods of adjustment aim mutually with resource occupation ratio.
T1: the number of users that trigger to adopt method that the embodiment of the present invention provides to carry out load balancing processing takies and compares thresholding.
T2: the resource occupation that the method that triggering the employing embodiment of the present invention provides is carried out load balancing processing compares thresholding.
T1: when described b1 surpasses described t1, the number of users of the adjacent area that Serving cell and qualified and its execution load balancing are processed takies the thresholding than difference.
T2: when described b2 surpasses described t2, the resource occupation of the adjacent area that Serving cell and qualified and its execution load balancing are processed is than the thresholding of difference.(for T1 and T2, relate to hereinafter.)
In prior art, system seizure condition is the comprehensive state general designation that comprises interface-free resources, hardware cpu resource, transmission TNL resource.During practical application, eating dishes without rice or wine is exactly PRB resource occupation ratio.That CPU and TNL resource exist is basic, normal, high, four other status indicators of level of overload.Optionally, in a kind of implementation of the present embodiment, the calculating of described b2 comprises the PRB resource of eating dishes without rice or wine.And for the hardware resource HW of described adjacent area, the load condition of transfer resource TNL, only by defined basic, normal, high, four grades of overload in agreement as the entry condition of select target community.For example: if Yi Ge community exists HW and TNL high load capacity or overload condition, do not select this community to switch as Target cell, and then just without the number of users that judges Yu Gai community, Serving cell, take than difference and resource occupation whether surpass respective threshold than difference.
Optionally, in a kind of implementation of the present embodiment, the number of users that obtains each adjacent area of described Serving cell by X2 message take than with resource occupation ratio.Further alternative, the number of users that serving BS periodically obtains each adjacent area of described Serving cell take than with resource occupation ratio, for example, serving BS sends resource status request to each adjacent area of described Serving cell, in this message can agreement each adjacent area to described serving BS feedback user number, for example take, than the cycle with resource occupation ratio (: 5 seconds), to such an extent as to each adjacent area every the set time from trend serving BS feed back its number of users take than with resource occupation ratio.
102: according to the number of users of described Serving cell and each adjacent area, described Serving cell, take than difference and resource occupation and compare difference, from described all adjacent areas, choose the first adjacent area and load balancing processing is carried out in described Serving cell, at least one comprising in number of users equilibrium and balancing resource load processed in described load balancing, for example, comprise following several load balancing processing mode: only carry out number of users equilibrium, only carry out Workload Balance, carry out number of users equilibrium and Workload Balance simultaneously.
Optionally, in a kind of implementation of the present embodiment, described the first adjacent area of choosing meets the following conditions: when described b1 surpasses described t1, described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described the first adjacent area; Or when described b2 surpasses described t2, described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described the first adjacent area than difference.
The method synthesis that the present embodiment provides considers that actual user's number and real resource load carry out MLB, the equalization methods of loading based on resource separately with respect to prior art, and the complexity of the present embodiment is lower; In addition, with respect to prior art, only based on resource load, carry out MLB, the equilibrium that the present embodiment can better maintenance system is with stable, and taken into account the service quality to all users.
Optionally, in a kind of implementation of the present embodiment, in 100, the number of users that can obtain in the following manner all adjacent areas of described Serving cell take than with resource occupation ratio:
Step 1: the serving BS of Serving cell sends resource status request to the base station of each adjacent area, described Serving cell, the number of users that described resource status request carries described each adjacent area of request takies than the indication with resource occupation ratio.
Step 2: described serving BS receives the resource status updating message that the base station of described each adjacent area sends, the number of users that described resource status updating message carries described each adjacent area take than with resource occupation ratio.
Certainly, after step 1, and before step 2, the base station of described each adjacent area can send resource status request response to described serving BS, with represent described each adjacent area base station will to described serving BS feedback user number take than with resource occupation ratio.If after step 1, the base station of described each adjacent area sends resource status request failure message to described serving BS, does not perform step 2.Further alternative, above-mentioned resource status request response, resource status request failure message all carries number of users and takies than indicating with resource occupation ratio.
Optionally, in a kind of implementation of the present embodiment, in 102, from described all adjacent areas, choose in the following manner described the first adjacent area:
Step 1: choose balanced adjacent area and form the set of balanced adjacent area from described all adjacent areas, wherein, number of users when described Serving cell takies than b1 over corresponding thresholding t1, or when the resource occupation of described Serving cell surpasses corresponding thresholding t2 than b2 (based on described b1 and described b2, and the number of users of described each adjacent area now obtaining takies than taking than difference and resource occupation than difference than calculating number of users with resource occupation), described balanced adjacent area all meets the following conditions: described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described balanced adjacent area, or, described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described balanced adjacent area than difference.
Step 2: choose any one balanced adjacent area meeting the following conditions as described the first adjacent area from the set of described balanced adjacent area:
When described b1 surpasses described t1, described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described the first adjacent area; Or when described b2 surpasses described t2, described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described the first adjacent area than difference.
Wherein, the form that the set of balanced adjacent area can list embodies, and the present invention does not limit putting in order of list Zhong Ge community.Certainly, in other implementations of the present embodiment, also can directly from described all adjacent areas, choose described the first adjacent area and without generating the set of balanced adjacent area.
Optionally, in a kind of implementation of the present embodiment, after choosing described the first adjacent area, 102 comprise following several processing mode:
Process one: if (B1 * U-B2 * R) >h, it is balanced that number of users is carried out in described Serving cell and described the first adjacent area.Comprise: the edge customer of the poor throughput of some (for example: throughput is lower than the edge customer of first threshold) switches based on number of users, to reach described Serving cell balanced with the number of users of described the first adjacent area (that is: B1≤T1) and to reduce the impact on real resource load.Further alternative, if reach B1≤T1 after equilibrium, but do not reach b1≤t1, (number of users based on current takies than difference and resource occupation and chooses this another adjacent area than difference, and selection standard is identical with the selection standard of described the first adjacent area to choose another adjacent area.Below corresponding position is no longer repeated in this description) execution load balancing processing.
Process two: if | B1 * U-B2 * R|≤h, balanced the and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously.Comprise: the edge customer of some switches based on number of users and resource load.For example: the edge customer that travels through described Serving cell and described the first adjacent area, wherein, the terminal of high-throughput (for example: throughput reaches the edge customer of Second Threshold) is switched based on Workload Balance, the terminal of poor throughput based on number of users equilibrium switch, to reach number of users and resource load simultaneously balanced (that is: B1≤T1 and B2≤T2).Further alternative, if reached B1≤T1 and B2≤T2 after equilibrium, but do not reach b1≤t1 and b2≤t2 simultaneously, choose another adjacent area and carry out load balancing processing.
Process three: if (B1 * U-B2 * R) <h, Workload Balance is carried out in described Serving cell and described the first adjacent area.Comprise: the edge customer of the high-throughput of some switches based on resource load, to reach the equilibrium (that is: B2≤T2) of resource load and to reduce the impact on number of users.Further alternative, if reach B2≤T2 after equilibrium, but fail to reach b2≤t2, choose another adjacent area and carry out load balancing processing.
Wherein, to be described Serving cell take and compare difference with the number of users of described the first adjacent area B1; B2 is that difference is compared with the resource occupation of described the first adjacent area in described Serving cell; H>0, it is configured to limit the probability that simultaneously carries out the balanced and Workload Balance of number of users between described Serving cell and described the first adjacent area; U is illustrated in the weight of number of users equilibrium while carrying out load balancing processing; R is illustrated in the weight of Workload Balance while carrying out load balancing processing; And U and R's and be 1.Wherein, h is as configurable parameter, also can be configured to avoid two equalization targets rattle (that is: the ping-pong phenomenon of load balancing processing mode mentioned below).Optionally, h=0.1, U+R=1(U ∈ [0,1], R ∈ [0,1]).Exemplary: U=0.4, R=0.6.Further alternative, if U is configured to 0, in method provided by the invention, the number of users of not considering described Serving cell takies when described Serving cell and takies than difference with the number of users of other communities, only carries out the equilibrium based on resource load that is:.If R is configured to 0, only carry out the equilibrium based on number of users.
Wherein, can open an account according to the user in the time period in network throughput, the system specification, mobile subscriber's ratio, flowed fluctuation situation, number of users fluctuation situation of above-mentioned number of users weight U and resource load weight R carried out liberalization, with Continuous optimization weighted value.
The method that this implementation provides, consider that number of users and resource load carry out MLB simultaneously, and by configure weights value, flexible configuration number of users and the impact of resource load on moving load equilibrium, adapt to actual networking and commercial scene, simultaneously for operator provides moving load balanced way flexibly under the different strategies of distributing telephone numbers, terminal type.
Optionally, in this implementation, carrying out above-mentioned processing for the moment, described serving BS is balanced with the number of users of described the first adjacent area to carry out described Serving cell to the base station transmission handover request of described the first adjacent area, described handover request carries because number of users takies the cause value switching than request, to carry out load balancing based on number of users, processes (for example: thereby the CIO that adjusts described the first adjacent area triggers UE, switch).
Optionally, in this implementation, when carrying out above-mentioned processing two, described serving BS sends handover request to carry out the balanced and Workload Balance of the number of users of described Serving cell and described the first adjacent area to the base station of described the first adjacent area, described handover request carries because number of users takies than the cause value that request is switched with resource occupation ratio, so that the load balancing of carrying out based on number of users and resource load is processed.
Optionally, in a kind of implementation of the present embodiment, after 102, described method also comprises:
Measure the current CU in described Serving cell than b3 and resource occupation than b4, judge whether to meet: described b3 surpasses described t1, or described b4 surpasses described t2; If do not met, load balancing is finished dealing with, if met, from all adjacent areas of described Serving cell, chooses the second adjacent area and carries out load balancing processing.Exemplary, can choose described the second adjacent area in conjunction with the balanced adjacent area set in above-mentioned implementation, comprising:
Any one balanced adjacent area of choosing non-described the first adjacent area from described balanced adjacent area set is as the second adjacent area, the CU current according to described Serving cell compares b4 than b3 and resource occupation, and the number of users of current and described the second adjacent area, described Serving cell takies than difference B3 and resource occupation and judges whether to meet than difference B4: when described b3 surpasses described t1, described B3 surpasses described T1; Or when described b4 surpasses described t2, described B4 surpasses described T2;
If met, according to the value of (B3 * U-B4 * R) and the difference of h, determine described Serving cell and described the second adjacent area are carried out which kind of load balancing processing (exemplary, concrete deterministic process please refer to processing one, the processing two of carrying out in 102 and processes three, does not repeat) herein.If do not met, from described balanced adjacent area set, choose another adjacent area again, repeat above-mentioned deterministic process.
Those skilled in the art are to be understood that, the method of choosing described the second adjacent area in this implementation is also applicable to choose described the first adjacent area in each implementation of the present embodiment, exemplary, can be after generating the set of balanced adjacent area, therefrom choose at random a balanced adjacent area and judge whether it meets the condition as described the first adjacent area that is selected, if met, this equilibrium adjacent area is described the first adjacent area, otherwise, choose at random another balanced adjacent area and repeat above-mentioned deterministic process.
Those skilled in the art are to be understood that equally, in this implementation, because serving BS can be with its each adjacent area agreement by described each adjacent area periodic feedback CU ratio and resource occupation ratio, therefore, the number of users of described the second adjacent area take than with resource occupation than periodically updating.
Fig. 2 is that with reference to Fig. 2, described method comprises according to the schematic flow sheet of the minizone moving load equalization methods of an embodiment of the present invention:
200: b1 and b2 are measured in Serving cell.B1 and b2 be respectively the number of users of Serving cell take than with resource occupation ratio, t1 and t2 are respectively the corresponding thresholdings of b1 and b2.Optionally, this measurement can be periodically, and for example, serving BS was initiated one-shot measurement to upgrade b1 and b2 every 1 second.
201: during any one in the b1>t1 that satisfies condition, condition b2>t2 (or two) condition, carry out 202, otherwise, repeat 200.
202: serving BS takies than difference and resource occupation and compares difference according to the number of users of described Serving cell now and each adjacent area, described Serving cell, from described all adjacent areas, choose first object adjacent area, the number of users of measuring described Serving cell and this first object adjacent area takies than difference B1 and resource occupation than difference B2, and carries out 203.
Optionally, serving BS is periodic (can be [1,10] second measuring period) to the measurement of B1 and B2, for example, every 5 seconds, measures once.
Optionally, in a kind of implementation of the present embodiment, by generating the balanced adjacent area of middle description embodiment illustrated in fig. 1, gather, then from described set, choose described first object adjacent area.
203: according to B1 and B2, judge, if b1>t1 and B1>T1, or, if b2>t2 and B2>T2 carry out 204, otherwise carry out 207.Wherein, T1, T2 are respectively the corresponding thresholdings of B1, B2.
204: judge whether to meet (B1 * U-B2 * R) >h, if do not met, carry out 205; If met, the edge customer that travels through described Serving cell and described first object adjacent area is processed with the load balancing of carrying out based on number of users, comprising:
Select the edge customer of a poor throughput to carry out the switching (edge customer of this poor throughput is switched to first object adjacent area by Serving cell) based on number of users equilibrium; (for example: 5 seconds wait for a period of time.Waiting time can be consistent with the measuring period of B1, B2), remeasure B1(or measure B1 and B2), and judge whether to meet B1≤T1, if meet, carry out 207, if do not met, select the edge customer of another poor throughput to repeat above-mentioned processing, the rest may be inferred.
205: judge whether to meet | B1 * U-B2 * R|≤h, if do not met, carries out 206; If met, the edge customer that travels through described Serving cell and described first object adjacent area is processed with the load balancing of carrying out based on number of users and resource load, comprising:
Select the edge customer of a poor throughput to carry out the switching based on number of users equilibrium, select the edge customer of a high-throughput to carry out the switching (edge customer of this high-throughput is switched to first object adjacent area by Serving cell) based on Workload Balance simultaneously.(for example: 5 seconds wait for a period of time.Waiting time can be consistent with the measuring period of B1, B2), remeasure B1 and B2, and judge whether to meet B1≤T1 and B2≤T2, if met, carry out 207, if do not met, repeat to select other edge customers to carry out and switch.Further alternative, if B1≤T1 and B2>T2 can only select the edge customer of a high-throughput to carry out the switching based on Workload Balance; If B2≤T2 and B1>T1 can only select the edge customer of a poor throughput to carry out the switching based on number of users equilibrium; If B1>T1 and B2>T2, the load balancing repeating based on number of users and resource load is processed, and the rest may be inferred.
206: judge whether to meet (B1 * U-B2 * R) <h, if do not met, carry out 207; If met, the edge customer that travels through described Serving cell and described first object adjacent area is processed with the load balancing of carrying out based on resource load, comprising:
Select the edge customer of a high-throughput to carry out the switching based on Workload Balance; (for example: 5 seconds wait for a period of time.Waiting time can be consistent with the measuring period of B1, B2), remeasure B2(or measure B1 and B2), and judge whether to meet B2≤T2, if meet, carry out 207, if do not met, select the edge customer of another high-throughput to repeat above-mentioned processing, the rest may be inferred.
Optionally, in a kind of implementation of the present embodiment, in 204,205 and 206, determine each time after the mode of load balancing processing, not carrying out immediately corresponding load balancing processes, but whether the load balancing processing mode that judges described Serving cell ping-pong phenomenon occurs, (if identical with the k-2 time of the mode that the k time load balancing in described Serving cell is processed, and different from the k-1 time, think and occur the ping-pong phenomenon of load balancing processing mode.This essence of phenomena is that to cause resource unbalanced due to number of users adjustment, or resource load adjustment causes, and user is unbalanced to cause).If generation ping-pong phenomenon, current flow process finishes, after stagnating a period of time, (for example stagnate 1 minute, like this, resource load condition or the number of users situation of each community can change a lot), remeasure again number of users take than with resource occupation than (start to measure and load balancing process) next time, thereby avoid ping-pong phenomenon.
207: judge whether to meet b1≤t1 and b2≤t2, if not, choose the second target adjacent area and carry out load balancing processing, if so, this load balancing processing finishes.Wherein, choosing the flow process of carrying out load balancing processing in the second target adjacent area carries out load balancing and processes similar to the above-mentioned first object adjacent area of choosing, or please refer to embodiment illustrated in fig. 1 in for the explanation of choosing described the second adjacent area and described Serving cell and carry out load balancing processing, do not repeat herein.
It will be appreciated by those skilled in the art that carrying out after load balancing processing with described the second target adjacent area, can also continue to carry out load balancing processing with other adjacent areas.
Optionally, in a kind of implementation of the present embodiment, serving BS in load balancing processing procedure, the value of periodic measurement b1, b2.
Optionally, in 204, serving BS sends handover request and receives corresponding switching request response to the base station of described first object adjacent area, described handover request carries because number of users takies the cause value switching than request, to notify the base station of described first object adjacent area to carry out the equilibrium based on number of users.
Optionally, in 205, serving BS sends handover request and receives corresponding switching request response to the base station of described first object adjacent area, described handover request carries because number of users takies than the cause value that request is switched with resource load, to notify the base station of described first object adjacent area to carry out the equilibrium based on number of users and resource load.
Optionally, in 206, serving BS sends handover request and receives corresponding switching request response to the base station of described first object adjacent area, described handover request carries the cause value switching because of the request of resource load, to notify the base station of described first object adjacent area to carry out the equilibrium based on resource load.
Optionally, in 207, while reaching each time b1≤t1 and b2≤t2, stagnation a period of time (for example: 60 seconds) is carried out number of users again and is taken than the measurement with resource occupation ratio.
Optionally, under with frequency MLB scene, in above-mentioned 204,205,206, thereby the automatic adjustment aim of system community CIO value triggers UE switching with the A3 formula meeting in LTE agreement.
It will be appreciated by those skilled in the art that various embodiments of the present invention are not limited to frequency, alien frequencies, different system, between Nei He base station, base station, the scenes such as Active state and Idle state, all applicable.In various embodiments of the present invention, also can replace the equilibrium based on number of users by the equilibrium of carrying out based on bearer types or carrying number.
Fig. 3 A is the moving load balancer according to an embodiment of the present invention, and with reference to Fig. 3 A, described moving load balancer 30 comprises:
The first measuring unit 32, for measure the number of users of Serving cell take than with resource occupation ratio.Exemplary, the number of users that periodically (for example, the cycle is 1 second) measures described Serving cell take than with resource occupation ratio.
Optionally, by traveling through the neighbor cell configuration list of described Serving cell, and then with the number of users that the order of described neighbor cell configuration list is obtained all adjacent areas of described Serving cell take than with resource occupation ratio.
The first trigger element 34, takies than b1 and surpasses corresponding thresholding t1 for the number of users in described Serving cell, or resource occupation is while surpassing corresponding thresholding t2 than b2, triggers following the first acquiring unit 36.
The first acquiring unit 36, for obtain the number of users of all adjacent areas of described Serving cell take than with resource occupation ratio.
The first processing unit 38, for taking than difference and resource occupation and compare difference according to the number of users of described Serving cell and each adjacent area, described Serving cell, from described all adjacent areas, choose the first adjacent area and load balancing processing is carried out in described Serving cell, at least one comprising in the balanced and balancing resource load of number of users processed in described load balancing.
Optionally, in a kind of implementation of the present embodiment, described the first adjacent area that described the first processing unit 38 is chosen meets the following conditions: when described b1 surpasses described t1, described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described the first adjacent area; Or when described b2 surpasses described t2, described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described the first adjacent area than difference.
The moving load balancer 30 that the present embodiment provides can consider actual user's number and real resource load carries out MLB, the better equilibrium of maintenance system and stable, and taken into account the service quality to all users.
Optionally, in a kind of implementation of the present embodiment, with reference to Fig. 3 B, the first acquiring unit 36 comprises:
Send subelement 361, for the base station to described each adjacent area, send resource status request, the number of users that described resource status request carries described each adjacent area of request takies than the indication with resource occupation ratio.
Receive subelement 362, the resource status updating message sending for receiving the base station of described each adjacent area, the number of users that described resource status new information carries described each adjacent area take than with resource occupation ratio.
Optionally, in a kind of implementation of the present embodiment, with reference to Fig. 3 C, the first processing unit 38 comprises:
Set generates subelement 381, for choose balanced adjacent area from described all adjacent areas, form the set of balanced adjacent area, wherein, number of users when described Serving cell takies than b1 over corresponding thresholding t1, or when the resource occupation of described Serving cell surpasses corresponding thresholding t2 than b2, described balanced adjacent area all meets the following conditions: described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described balanced adjacent area, or described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described balanced adjacent area than difference.
Choose subelement 382, for choosing any one balanced adjacent area meeting the following conditions from the set of described balanced adjacent area as described the first adjacent area: when described b1 surpasses described t1, described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described the first adjacent area; Or when described b2 surpasses described t2, described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described the first adjacent area than difference.
Balanced subelement 383, for determining according to the value of (B1 * U-B2 * R) and the difference of h which kind of load balancing processing described Serving cell and described the first adjacent area carry out, comprise: if (B1 * U-B2 * R) >h, it is balanced that number of users is carried out in described Serving cell and described the first adjacent area; If | B1 * U-B2 * R|≤h, balanced the and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; (if B1 * U-B2 * R) <h, Workload Balance is carried out in described Serving cell and described the first adjacent area.
Wherein, to be described Serving cell take and compare difference with the number of users of described the first adjacent area B1; B2 is that difference is compared with the resource occupation of described the first adjacent area in described Serving cell; H>0, it is configured to limit the probability that the balanced and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; U is illustrated in the weight of number of users equilibrium while carrying out load balancing processing; R is illustrated in the weight of Workload Balance while carrying out load balancing processing; And U and R's and be 1.
The device that this implementation provides can consider that number of users and resource load carry out MLB simultaneously, and by configure weights value, flexible configuration number of users and the impact of resource load on moving load equilibrium, adapt to actual networking and commercial scene.
Further alternative, in a kind of implementation of the present embodiment, described balanced subelement 383 also comprises:
Sending module, for the base station to described the first adjacent area, sending handover request processes to carry out the load balancing of described Serving cell and described the first adjacent area, wherein: when (B1 * U-B2 * R) >h, described handover request carries because number of users takies the cause value switching than request, balanced with the number of users of described the first adjacent area to carry out described Serving cell; When B1 * U-B2 * R|≤h, described handover request carries because number of users takies than the cause value switching than request with resource occupation, to carry out the balanced and Workload Balance of the number of users of described Serving cell and described the first adjacent area; When (B1 * U-B2 * R) < h, described handover request carries the cause value switching than request because of resource occupation, to carry out the Workload Balance of described Serving cell and described the first adjacent area.
Fig. 4 is the moving load balancer according to an embodiment of the present invention, and with reference to Fig. 4, described moving load balancer 40 comprises:
The first measuring unit 32, the first trigger element 34 and the first acquiring unit 36 (for the description of these three unit, please refer to the corresponding description in embodiment illustrated in fig. 3), and
The first processing unit 38, for the description of described the first processing unit 38, please refer to the description in implementation shown in Fig. 3 C.
The second measuring unit 42, for executing in described Serving cell and described the first adjacent area after load balancing processes, measures the current CU in described Serving cell and compares b4 than b3 and resource occupation.
The second trigger element 44, meets for judging whether: described b3 surpasses described t1, or described b4 surpasses described t2; If do not met, load balancing is finished dealing with, if met, triggers following the second processing unit 46.
The second processing unit 46, any one the balanced adjacent area that is used for choosing non-described the first adjacent area from described balanced adjacent area set is as the second adjacent area, the CU current according to described Serving cell compares b4 than b3 and resource occupation, and the number of users of current and described the second adjacent area, described Serving cell takies than difference B3 and resource occupation and judges whether to meet than difference B4: when described b3 surpasses described t1, described B3 surpasses described T1; Or when described b4 surpasses described t2, described B4 surpasses described T2.If met, according to the value of (B3 * U-B4 * R) and the difference of h, determine described Serving cell and described the second adjacent area are carried out which kind of load balancing processing (concrete, to please refer in Fig. 3 C illustrated embodiment the explanation for balanced subelement 383).If do not meet, adopt identical method to choose another adjacent area and carry out above-mentioned judgement processing procedure.
The moving load balancer 40 that the present embodiment provides can improve equilibrium and the stability of system by the MLB that carries out repeating, and improves QoS of customer.
Each detailed functions explanation of installing for the embodiment of the present invention please refer to the respective description in embodiment of the method, repeats no more herein.
Existing product and method generally all consider in the networking stage for number of users equilibrium, and only consider the number of users thresholding whether up to specification of Serving cell oneself, do not consider the number of users situation of other adjacent areas, also do not consider the number of users situation of Service Period.And after user-network access, not doing business or very low traffic carrying capacity is also very common scene, while carrying out the calculating of resource load, be not consider this part user's.The method and apparatus that each embodiment of the present invention provides can take into account this part user's situation, considering number of users takies than carrying out MLB with resource occupation ratio, the better equilibrium of maintenance system and stable, and taken into account the service quality to all users.
Fig. 5 is the moving load balancer according to an embodiment of the present invention, with reference to Fig. 5, described moving load balancer 50 comprises: transmitter 51, receiver 52, memory 53 and the processor 54 being connected with described transmitter 51, receiver 52, memory 53.Wherein, thus memory 53 stores various programs, application is carried out following processing to be called by processor 54:
The number of users of measuring Serving cell take than with resource occupation ratio, number of users when described Serving cell takies than b1 over corresponding thresholding t1, or when resource occupation surpasses corresponding thresholding t2 than b2, the number of users that obtains all adjacent areas of described Serving cell take than with resource occupation ratio;
According to the number of users of described Serving cell and each adjacent area, described Serving cell, take than difference and resource occupation and compare difference, from described all adjacent areas, choose the first adjacent area and load balancing processing is carried out in described Serving cell, at least one comprising in the balanced and balancing resource load of number of users processed in described load balancing.
Optionally, in a kind of implementation of the present embodiment, the number of users that obtains in the following manner all adjacent areas of described Serving cell take than with resource occupation ratio:
Base station transmission resource status request by from transmitter 51 to described each adjacent area, the number of users that described resource status request carries described each adjacent area of request takies than the indication with resource occupation ratio;
By receiver 52, receive the resource status updating message that the base station of described each adjacent areas sends, the number of users that described resource status updating message carries described each adjacent area take than with resource occupation ratio.
Optionally, in a kind of implementation of the present embodiment, described processor 54 is chosen described the first adjacent area in the following manner from described all adjacent areas:
From described all adjacent areas, choose balanced adjacent area and form the set of balanced adjacent area, wherein, number of users when described Serving cell takies than b1 over corresponding thresholding t1, or when the resource occupation of described Serving cell surpasses corresponding thresholding t2 than b2, described balanced adjacent area all meets the following conditions: described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described balanced adjacent area, or described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described balanced adjacent area than difference;
From the set of described balanced adjacent area, choose any one balanced adjacent area meeting the following conditions as described the first adjacent area: when described b1 surpasses described t1, described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described the first adjacent area; Or when described b2 surpasses described t2, described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described the first adjacent area than difference.
Further alternative, described processor 54 carries out judging and processing:
(if B1 * U-B2 * R) >h, it is balanced that number of users is carried out in described Serving cell and described the first adjacent area; If | B1 * U-B2 * R|≤h, balanced the and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; (if B1 * U-B2 * R) <h, Workload Balance is carried out in described Serving cell and described the first adjacent area; Wherein, to be described Serving cell take and compare difference with the number of users of described the first adjacent area B1; B2 is that difference is compared with the resource occupation of described the first adjacent area in described Serving cell; H>0, it is configured to limit the probability that the balanced and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; U is illustrated in the weight of number of users equilibrium while carrying out load balancing processing; R is illustrated in the weight of Workload Balance while carrying out load balancing processing; And U and R's and be 1.
Wherein, when (B1 * U-B2 * R) >h, by transmitter 51, to the base station of described the first adjacent area, send handover request balanced with the number of users of described the first adjacent area to carry out described Serving cell, this handover request carries and takies than the cause value of asking switching because of number of users; When | during B1 * U-B2 * R|≤h, by transmitter 51, to the base station of described the first adjacent area, send handover request to carry out the balanced and Workload Balance of the number of users of described Serving cell and described the first adjacent area, this handover request carry because of number of users take than with resource occupation than the cause value of request switching; When (B1 * U-B2 * R) < h, by transmitter 51, to the base station of described the first adjacent area, send handover request to carry out the Workload Balance of described Serving cell and described the first adjacent area, this handover request carries because resource occupation is than the cause value of request switching.
Optionally, after executing and processing with the load balancing of described the first adjacent area, described processor 54 is also carried out following processing by transmitter 51 and receiver 52:
Measure the current CU in described Serving cell than b3 and resource occupation than b4, judge whether to meet: described b3 surpasses described t1, or described b4 surpasses described t2;
If do not met, load balancing is finished dealing with, if met,: any one balanced adjacent area of choosing non-described the first adjacent area from described balanced adjacent area set is as the second adjacent area, according to the current CU in described Serving cell than b3 and resource occupation than b4, and the number of users of current and described the second adjacent area, described Serving cell takies than difference B3 and resource occupation and judges whether to meet than difference B4:
When described b3 surpasses described t1, described B3 surpasses described T1; Or when described b4 surpasses described t2, described B4 surpasses described T2;
If met,, according to the value of (B3 * U-B4 * R) and the difference of h, determine which kind of load balancing processing described Serving cell and described the second adjacent area carry out.
Below with the form statistical correlation data of form, to embody more intuitively in the present invention, according to weight U, R, consider number of users and take than difference and resource occupation and than difference, carry out the effect of MLB.
Form (one) when carrying out the balanced and Workload Balance of number of users simultaneously, and the method that the employing embodiment of the present invention provides is carried out the portfolio effect after MLB.Wherein, D1/D2 is the value after B1/B2 equilibrium.Because in the edge UE choosing simultaneously, for the UE of underload, can cut out based on number of users equilibrium, for the UE of high load capacity, can cut out based on resource load, final number of users takies than difference and resource occupation and is all decreased to lower than T1/T2 than difference.
Form (one)
When form (two) is not considered actual load situation for only considering that number of users is balanced (so easy monitoring and maintenance), adopt method provided by the invention to carry out the effect after MLB.Wherein, D1/D2 is the value after B1/B2 equilibrium.Because it is balanced only to enter monolateral number of users, during actual equilibrium, can select the UE that edge cell throughput is less to cut out (having on-line UE without the possibility of business), so only reduce number of users here, take ratio.
Form (two)
Form (three) when only considering that Workload Balance is not considered number of users situation, adopts method provided by the invention to carry out the effect after MLB.Wherein, D1/D2 is the value after B1/B2 equilibrium.Because can only enter monolateral Workload Balance, during actual equilibrium, can select the UE that edge cell throughput is larger to cut out (existing a small amount of terminal to take the possibility of most of resource), so only reduce resource load here.
Form (three)
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, to come the hardware that instruction is relevant to complete by computer program, described program can be stored in a computer read/write memory medium, this program, when carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.

Claims (12)

1. a method for minizone moving load equilibrium, is characterized in that, described method comprises:
The number of users that serving BS is measured Serving cell take than with resource occupation ratio, number of users when described Serving cell takies than b1 over corresponding thresholding t1, or when resource occupation surpasses corresponding thresholding t2 than b2, the number of users that obtains all adjacent areas of described Serving cell take than with resource occupation ratio;
According to the number of users of described Serving cell and each adjacent area, described Serving cell, take than difference and resource occupation and compare difference, from described all adjacent areas, choose the first adjacent area and load balancing processing is carried out in described Serving cell, at least one comprising in the balanced and balancing resource load of number of users processed in described load balancing.
2. method as claimed in claim 1, is characterized in that, described in obtain all adjacent areas of described Serving cell number of users take than comprising with resource occupation ratio:
Described serving BS sends resource status request to the base station of described each adjacent area, and the number of users that described resource status request carries described each adjacent area of request takies than the indication with resource occupation ratio;
Described serving BS receives the resource status updating message that the base station of described each adjacent area sends, the number of users that described resource status updating message carries described each adjacent area take than with resource occupation ratio.
3. method as claimed in claim 1, is characterized in that, describedly from described all adjacent areas, chooses the first adjacent area and comprises:
From described all adjacent areas, choose balanced adjacent area and form the set of balanced adjacent area, wherein, when the number of users of described Serving cell takies than b1, surpass corresponding thresholding t1, or when the resource occupation of described Serving cell is than b2 during over corresponding thresholding t2, described balanced adjacent area all meets the following conditions:
Described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described balanced adjacent area, or described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described balanced adjacent area than difference;
From the set of described balanced adjacent area, choose any one balanced adjacent area meeting the following conditions as described the first adjacent area:
When described b1 surpasses described t1, described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described the first adjacent area; Or when described b2 surpasses described t2, described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described the first adjacent area than difference.
4. method as claimed in claim 3, is characterized in that, described the first adjacent area and the described Serving cell chosen from described all adjacent areas carried out load balancing and processed and comprise:
(if B1 * U-B2 * R) >h, it is balanced that number of users is carried out in described Serving cell and described the first adjacent area;
If | B1 * U-B2 * R|≤h, balanced the and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously;
(if B1 * U-B2 * R) <h, Workload Balance is carried out in described Serving cell and described the first adjacent area;
Wherein, to be described Serving cell take and compare difference with the number of users of described the first adjacent area B1; B2 is that difference is compared with the resource occupation of described the first adjacent area in described Serving cell; H>0, it is configured to limit the probability that the balanced and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; U is illustrated in the weight of number of users equilibrium while carrying out load balancing processing; R is illustrated in the weight of Workload Balance while carrying out load balancing processing; And U and R's and be 1.
5. method as claimed in claim 4, is characterized in that,
Described Serving cell carries out with described the first adjacent area that number of users is balanced to be comprised:
Described serving BS sends handover request to the base station of described the first adjacent area balanced with the number of users of described the first adjacent area to carry out described Serving cell, and this handover request carries and takies than the cause value of asking switching because of number of users;
Described Serving cell and described the first adjacent area are carried out the balanced and Workload Balance of number of users simultaneously and are comprised:
Described serving BS sends handover request to carry out the balanced and Workload Balance of the number of users of described Serving cell and described the first adjacent area to the base station of described the first adjacent area, this handover request carry because of number of users take than with resource occupation than the cause value of request switching.
6. method as described in claim 4 or 5, is characterized in that, after described method, also comprises:
Measure the current CU in described Serving cell than b3 and resource occupation than b4, judge whether to meet: described b3 surpasses described t1, or described b4 surpasses described t2;
If do not met, load balancing is finished dealing with, if met,: any one balanced adjacent area of choosing non-described the first adjacent area from described balanced adjacent area set is as the second adjacent area, according to the current CU in described Serving cell than b3 and resource occupation than b4, and the number of users of current and described the second adjacent area, described Serving cell takies than difference B3 and resource occupation and judges whether to meet than difference B4:
When described b3 surpasses described t1, described B3 surpasses described T1; Or when described b4 surpasses described t2, described B4 surpasses described T2;
If met,, according to the value of (B3 * U-B4 * R) and the difference of h, determine which kind of load balancing processing described Serving cell and described the second adjacent area carry out.
7. a moving load balancer, is characterized in that, described device comprises:
The first measuring unit, for measure the number of users of Serving cell take than with resource occupation ratio;
The first trigger element, takies than b1 and surpasses corresponding thresholding t1 for the number of users in described Serving cell, or resource occupation is while surpassing corresponding thresholding t2 than b2, triggers following the first acquiring unit;
The first acquiring unit, for obtain the number of users of all adjacent areas of described Serving cell take than with resource occupation ratio;
The first processing unit, for taking than difference and resource occupation and compare difference according to the number of users of described Serving cell and each adjacent area, described Serving cell, from described all adjacent areas, choose the first adjacent area and load balancing processing is carried out in described Serving cell, at least one comprising in the balanced and balancing resource load of number of users processed in described load balancing.
8. install as claimed in claim 7, it is characterized in that, described the first acquiring unit comprises:
Send subelement, for the base station to described each adjacent area, send resource status request, the number of users that described resource status request carries described each adjacent area of request takies than the indication with resource occupation ratio;
Receive subelement, the resource status updating message sending for receiving the base station of described each adjacent area, the number of users that described resource status updating message carries described each adjacent area take than with resource occupation ratio.
9. install as claimed in claim 7, it is characterized in that, described the first processing unit comprises:
Set generates subelement, for choose balanced adjacent area from described all adjacent areas, form the set of balanced adjacent area, wherein, number of users when described Serving cell takies than b1 over corresponding thresholding t1, or when the resource occupation of described Serving cell surpasses corresponding thresholding t2 than b2, described balanced adjacent area all meets the following conditions:
Described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described balanced adjacent area, or described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described balanced adjacent area than difference;
Choose subelement, for choosing any one balanced adjacent area meeting the following conditions from the set of described balanced adjacent area as described the first adjacent area:
When described b1 surpasses described t1, described Serving cell takies than difference and surpasses corresponding thresholding T1 with the number of users of described the first adjacent area; Or when described b2 surpasses described t2, described Serving cell surpasses corresponding thresholding T2 with the resource occupation of described the first adjacent area than difference.
10. install as claimed in claim 9, it is characterized in that, described the first processing unit also comprises:
Balanced subelement, for determining that according to the value of (B1 * U-B2 * R) and the difference of h which kind of load balancing processing described Serving cell and described the first adjacent area carry out, and comprising:
(if B1 * U-B2 * R) >h, it is balanced that number of users is carried out in described Serving cell and described the first adjacent area; If | B1 * U-B2 * R|≤h, balanced the and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; (if B1 * U-B2 * R) <h, Workload Balance is carried out in described Serving cell and described the first adjacent area;
Wherein, to be described Serving cell take and compare difference with the number of users of described the first adjacent area B1; B2 is that difference is compared with the resource occupation of described the first adjacent area in described Serving cell; H>0, it is configured to limit the probability that the balanced and Workload Balance of number of users is carried out in described Serving cell and described the first adjacent area simultaneously; U is illustrated in the weight of number of users equilibrium while carrying out load balancing processing; R is illustrated in the weight of Workload Balance while carrying out load balancing processing; And U and R's and be 1.
11. install as claimed in claim 10, it is characterized in that, described balanced subelement comprises:
Sending module, sends handover request for the base station to described the first adjacent area and processes to carry out the load balancing of described Serving cell and described the first adjacent area, wherein:
When (B1 * U-B2 * R) >h, described handover request carries because number of users takies the cause value switching than request, balanced with the number of users of described the first adjacent area to carry out described Serving cell;
When B1 * U-B2 * R|≤h, described handover request carries because number of users takies than the cause value switching than request with resource occupation, to carry out the balanced and Workload Balance of the number of users of described Serving cell and described the first adjacent area.
12. device, is characterized in that as described in claim 10 or 11, described device also comprises:
The second measuring unit, for executing in described Serving cell and described the first adjacent area after load balancing processes, measures the current CU in described Serving cell and compares b4 than b3 and resource occupation;
The second trigger element, meets for judging whether: described b3 surpasses described t1, or described b4 surpasses described t2;
If do not met, load balancing is finished dealing with, if met, triggers following the second processing unit;
The second processing unit, any one the balanced adjacent area that is used for choosing non-described the first adjacent area from described balanced adjacent area set is as the second adjacent area, according to the current CU in described Serving cell than b3 and resource occupation than b4, and the number of users of current and described the second adjacent area, described Serving cell takies than difference B3 and resource occupation and judges whether to meet than difference B4:
When described b3 surpasses described t1, described B3 surpasses described T1; Or when described b4 surpasses described t2, described B4 surpasses described T2,
If met,, according to the value of (B3 * U-B4 * R) and the difference of h, determine which kind of load balancing processing described Serving cell and described the second adjacent area carry out.
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