CN103167555A - Mobile management entity (MME) load control method, system and managerial subsystem - Google Patents

Abstract

The invention discloses a mobile management entity (MME) load control method. The MME load control method comprises that after a managerial subsystem receives a load warning message from an MME, a load weight factor of the MME is calculated by the managerial subsystem; and the load weight factor is arranged to the MME by the managerial subsystem. The invention further discloses a load control method. The load control method comprises the steps of judging whether a mean load index is greater than a preset mean load index threshold or not after the managerial subsystem receives a warning message of the MME, if the mean load index is judged to be greater than the preset mean load index threshold, informing the MME of refusing accessed users or discarding signaling, or else, parts of users of the MME are updated to other MMEs. The invention further discloses an MME load control system and a managerial subsystem in a corresponding mode. By means of the MME load control method, the system and the managerial subsystem, resources are saved, load control is carried out under the premise that other services are not influenced to the greatest extent, and load sharing can be effectively conducted in an MME pool.

Description

MME duty control method, system and ADMINISTRATION SUBSYSTEM

Technical field

The present invention relates to moving communicating field, relate in particular to a kind of MME duty control method, system and ADMINISTRATION SUBSYSTEM.

Background technology

In mobile management entity (MME) commercialization; can occur because some reason causes the user to break out the situation that surpasses normal traffic model service request number of times in the short time; at this moment; the central processing unit of MME (CPU) resource, data field resource, interface or the inner exchanging bandwidth ability that all may reach capacity even; even collapse thereby cause system loading to be leapt high, this has brought huge challenge for core network of mobile operator.

In addition, due to the fast development of EPC related service, number of users constantly increases sharply, and it is also trend of the times that mobile operator adopts the deployment way in MME pond.Therefore, be no matter to avoid the overload of a certain MME or the load sharing in MME pond, all need as much as possible the MME in the pond to be done load balancing.The purpose of the load balancing between MME is: according to load balancing situation between MME in the pond, the UE that allows newly to enter the MME pond is directed on MME suitable in the pond.

From 3GPP agreement (TS 23.401) and present realization, the load balancing flow process of MME normally:

MME can issue eNodeB with the fixed capacity of this equipment;

Relevant eNodeB calculates the weight of a certain MME according to the volumeter of each MME in the pond;

Relevant eNodeB carries out the adjustment of business load according to the weight situation of a certain MME, if a certain MME weight is higher, eNodeB just selects this MME as much as possible, and then increases the load of this MME.

But there is following problem in above-mentioned load control mode:

In practical application, in the MME pond, the weight factor of MME generally is configured to a fixing value, and and non-binding actual conditions dynamic calculation gained, cause this weight factor to have little significance, and eNodeB considers from efficiency, can not adjust in real time the load weight factor.

Although existing correlation technique proposes when the weight of a certain MME departs from assign thresholds, the scheme that the load of this MME is adjusted accordingly, but, if the weight of a certain MME departs to some extent and just triggers eNodeB and stress newly to select MME, can cause the MME load sharing in the MME pond frequently to adjust, cause the waste of resource, even may cause some MME overload.

Process along with the MME commercialization, operator is when disposing the MME pond, how to allow each MME carries out load sharing in time, effectively in the pond, in addition in load sharing, can the customer service on other MME not affected to some extent, also can not produce new overload to other MME, be that operator compares stubborn problem all the time.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of MME duty control method, system and ADMINISTRATION SUBSYSTEM, the control of can loading under the prerequisite that does not as far as possible affect other business, and can effectively carry out load sharing in the MME pond.

For achieving the above object, technical scheme of the present invention is achieved in that

A kind of mobile management entity MME duty control method comprises:

After ADMINISTRATION SUBSYSTEM is received load warning information from MME, calculate the load weight factor of described MME;

ADMINISTRATION SUBSYSTEM arranges described load weight factor to described MME.

The method also comprises: described MME notifies described load weight factor to base station eNodeB.

The method also comprises: ADMINISTRATION SUBSYSTEM is calculated the acquiescence load weight factor of each MME in the MME pond in advance, and is handed down to corresponding MME.

After calculating the load weight factor of described MME, the method also comprises:

Whether the load weight factor that ADMINISTRATION SUBSYSTEM judges described calculating is less than the acquiescence load weight factor of described MME, judge that the load weight factor of described calculating is less than the acquiescence load weight factor of described MME, carry out subsequent operation, be about to described load weight factor and arrange to described MME.

ADMINISTRATION SUBSYSTEM judges that the load weight factor of described calculating is not less than the acquiescence load weight factor of described MME, and the average overload duration of described MME improves the load thresholding of described MME over default thresholding.

Described calculating acquiescence load weight factor is:

According to

Calculate the acquiescence load weight factor Weigh of MME-t _t, wherein, Cap _tBe the professional ability of MME-t, N is the quantity of MME in the MME pond.

The method also comprises:

MME judges whether load balancing is effective, judges that load balancing is invalid, sends a warning message to ADMINISTRATION SUBSYSTEM;

After ADMINISTRATION SUBSYSTEM is received described warning information, calculate the average load index in MME pond, and judge that whether described average load index is greater than default average load index thresholding, judge described average load index greater than default average load index thresholding, notify the user of the new access of described MME refusal or abandon signaling; Otherwise, the certain customers of described MME are updated on other MME.

Described MME judges that whether load balancing be effectively: judge whether load factor descends,

The load factor Oload of MME _i=SerAbRatio _i* MaxCpuRatio _i* CurrUserRatio _i, wherein, SerAbRatio is the ratio of current business ability and maximum traffic ability, and MaxCpuRatio is current peak C PU occupancy, and CurrUserRatio is the ratio of active user's number and maximum number of user.

Described ADMINISTRATION SUBSYSTEM is network management system NMS or Element management system EMS.

A kind of MME duty control method comprises:

After ADMINISTRATION SUBSYSTEM is received the warning information of MME, calculate the average load index in MME pond, and judge that whether described average load index is greater than default average load index thresholding, judge described average load index greater than default average load index thresholding, notify the user of the new access of described MME refusal or abandon signaling; Otherwise, the certain customers of described MME are updated on other MME.

Before ADMINISTRATION SUBSYSTEM was received the warning information of MME, the method also comprised: MME judges whether load balancing is effective, judges that load balancing is invalid, sends a warning message to ADMINISTRATION SUBSYSTEM.

Described MME judges that whether load balancing be effectively: judge whether load factor descends,

The load factor Oload of MME _i=SerAbRatio _i* MaxCpuRatio _i* CurrUserRatio _i, wherein, SerAbRatio is the ratio of current business ability and maximum traffic ability, and MaxCpuRatio is current peak C PU occupancy, and CurrUserRatio is the ratio of active user's number and maximum number of user.

A kind of ADMINISTRATION SUBSYSTEM comprises: receiver module, load weight factor computing module and Executive Module; Wherein,

Described receiver module is used for receiving the load warning information from MME;

Described load weight factor computing module after the load warning information of receiving at receiver module from MME, calculates the load weight factor of described MME;

Described Executive Module is used for the load weight factor that described load weight factor computing module calculates is arranged to described MME.

This ADMINISTRATION SUBSYSTEM also comprises acquiescence load weight factor computing module, is used for calculating in advance the acquiescence load weight factor of MME each MME of pond, and is handed down to corresponding MME.

Described ADMINISTRATION SUBSYSTEM also comprises the first judge module,

Described the first judge module is used for load weight factor that judgement load weight factor computing module calculates whether less than the acquiescence load weight factor of described MME, and notifies Executive Module with judged result;

Described Executive Module, concrete being used for arranges described load weight factor to described MME when the first judge module judges that described load weight factor is loaded weight factor less than the acquiescence of described MME.

Described the first judge module also is used for judging further whether the average overload duration of described MME surpasses default thresholding when the load weight factor of judging described calculating is not less than the acquiescence load weight factor of described MME;

Described Executive Module also is used for judging that at the first judge module the load weight factor of described calculating is not less than the acquiescence load weight factor of described MME, and the average overload duration of described MME improves the load thresholding of described MME when surpassing default thresholding.

Described ADMINISTRATION SUBSYSTEM also comprises: average load index computing module and the second judge module; Wherein,

Described receiver module also is used for receiving MME because of the warning information of the invalid transmission of load balancing;

Described average load index computing module is used for calculating the average load index in MME pond after receiver module is received described warning information;

Whether described the second judge module, the average load index that is used for judging described calculating greater than default average load index thresholding, and notifies Executive Module with judged result;

Described Executive Module is used for notifying the user of the new access of described MME refusal or abandoning signaling when the second judge module is judged described average load index greater than default average load index thresholding; When the second judge module judges that described average load index is not more than default average load index thresholding, the certain customers of described MME are updated on other MME.

Described ADMINISTRATION SUBSYSTEM is NMS or EMS.

A kind of MME load control system comprises above-mentioned ADMINISTRATION SUBSYSTEM and MME.

A kind of MME load control system comprises ADMINISTRATION SUBSYSTEM and MME; Wherein,

Described ADMINISTRATION SUBSYSTEM, be used for after receiving the warning information of MME, calculate the average load index in MME pond, and judge that whether described average load index is greater than default average load index thresholding, judge described average load index greater than default average load index thresholding, notify the user of the new access of described MME refusal or abandon signaling; Otherwise, the certain customers of described MME are updated on other MME;

Described MME is used for judging whether load balancing is effective, judges that load balancing is invalid, sends a warning message to ADMINISTRATION SUBSYSTEM.

After MME duty control method of the present invention, system and ADMINISTRATION SUBSYSTEM, ADMINISTRATION SUBSYSTEM are received load warning information from MME, calculate the load weight factor of described MME; ADMINISTRATION SUBSYSTEM arranges described load weight factor to described MME.The present invention can calculate the load weight factor of each MME in the MME pond, and the weight factor of in time loading is issued eNodeB, simultaneously, the present invention is in conjunction with the actual load of MME, especially Overload, therefore the calculating of the weight factor of just loading when satisfying certain condition can not cause the unnecessary adjustment of load sharing frequently in the MME pond.In a word, the present invention can saving resource, the control of loading under the prerequisite that does not as far as possible affect other business, and can effectively carry out load sharing in the MME pond.

Description of drawings

Fig. 1 is MME duty control method schematic flow sheet of the present invention;

Fig. 2 is load balancing estimation flow schematic diagram of the present invention;

Fig. 3 is that the embodiment of the present invention 1 is carried out the method flow schematic diagram that the MME load is controlled;

Fig. 4 is that the embodiment of the present invention 2 is carried out the method flow schematic diagram that the MME load is controlled;

Fig. 5 is the described MME load balancing of the embodiment of the present invention 3 estimation flow schematic diagram;

Fig. 6 is the described MME load balancing of the embodiment of the present invention 4 estimation flow schematic diagram.

Embodiment

Basic thought of the present invention is: after ADMINISTRATION SUBSYSTEM is received load warning information from MME, calculate the load weight factor of described MME; ADMINISTRATION SUBSYSTEM arranges described load weight factor to described MME.

Fig. 1 is MME duty control method schematic flow sheet of the present invention, and as shown in Figure 1, the method comprises:

Step 101: ADMINISTRATION SUBSYSTEM is received the overload warning information from MME.

Here, suppose in the inside, MME pond to have N MME (N＞=2), ADMINISTRATION SUBSYSTEM unifies to access each MME in the pond by relevant interface.ADMINISTRATION SUBSYSTEM can be a network element, also can be comprised of a plurality of network elements, and in practical application, ADMINISTRATION SUBSYSTEM can be network management system (NMS), Element management system (EMS) etc.

Step 102: ADMINISTRATION SUBSYSTEM is calculated the load weight factor of described MME.

The load weight factor computational methods will after embodiment in be described in detail.

Step 103: whether the load weight factor that ADMINISTRATION SUBSYSTEM judges described calculating less than the acquiescence load weight factor of described MME, if so, and execution in step 104; Otherwise, execution in step 105.

Need to prove, ADMINISTRATION SUBSYSTEM need to be calculated the acquiescence load weight factor of each MME in the MME pond in advance, and is handed down to corresponding MME.

Step 104: ADMINISTRATION SUBSYSTEM arranges described load weight factor to described MME.

Need to prove, after MME obtains described load weight factor, described load weight factor can be notified to eNodeB, carry out MME load balancing by eNodeB according to described load weight factor.

Step 105: ADMINISTRATION SUBSYSTEM judges whether the average overload duration of described MME surpasses default thresholding, if so, and execution in step 106; Otherwise, wouldn't adjust the load thresholding.

Step 106: the load thresholding that improves described MME.

Need to prove, the present invention can further include MME load balancing estimation flow, and Fig. 2 is load balancing estimation flow schematic diagram of the present invention, and as shown in Figure 2, this flow process comprises:

Step 201:MME judges whether load balancing is effective, if effectively, and execution in step 202; Otherwise, execution in step 203.

Here, MME judge load balancing whether effectively can for: judge whether load factor descends, load factor descends, and shows that load balancing is effective.

Step 202: described MME sends overload to eNodeB and stops (Overload Stop) message after load factor drops to the setting thresholding.

Optionally, the load factor of MME drops to less than after slight load thresholding, can send Overload Stop message to eNodeB.

Step 203: described MME sends a warning message to ADMINISTRATION SUBSYSTEM.

Here, whether MME can surpass common load thresholding, important load thresholding, the serious thresholding of loading according to load factor, sends corresponding warning information to ADMINISTRATION SUBSYSTEM.

Step 204: after ADMINISTRATION SUBSYSTEM is received described warning information, calculate the average load index in MME pond.

Step 205: whether ADMINISTRATION SUBSYSTEM judges described average load index greater than default average load index thresholding, if so, and execution in step 206; Otherwise, execution in step 207.

Need to prove, average load index thresholding can be identical with slight load thresholding.

Step 206: notify the user of the new access of described MME refusal or abandon signaling.

The average load index shows that greater than default average load index thresholding the load in the pond is generally higher, does not need to adjust.

Step 207: the certain customers of described MME are updated on other MME.

The average load index is not more than default average load index thresholding, can seek a minimum MME of load, and the certain customers of current alarm MME are updated on target MME.

The invention allows for a kind of MME duty control method, comprising:

After ADMINISTRATION SUBSYSTEM is received the warning information of MME, calculate the average load index in MME pond, and judge that whether described average load index is greater than default average load index thresholding, judge described average load index greater than default average load index thresholding, notify the user of the new access of described MME refusal or abandon signaling; Otherwise, the certain customers of described MME are updated on other MME.

Before ADMINISTRATION SUBSYSTEM was received the warning information of MME, the method also comprised: MME judges whether load balancing is effective, judges that load balancing is invalid, sends a warning message to ADMINISTRATION SUBSYSTEM.

Described MME judges that whether load balancing be effectively: judge whether load factor descends,

The load factor Oload of MME _i=SerAbRatio _i* MaxCpuRatio _i* CurrUserRatio _i, wherein, SerAbRatio is the ratio of current business ability and maximum traffic ability, and MaxCpuRatio is current peak C PU occupancy, and CurrUserRatio is the ratio of active user's number and maximum number of user.

The present invention also correspondingly proposes a kind of ADMINISTRATION SUBSYSTEM, and this ADMINISTRATION SUBSYSTEM comprises: receiver module, load weight factor computing module and Executive Module; Wherein,

Described receiver module is used for receiving the load warning information from MME;

Described load weight factor computing module after the load warning information of receiving at receiver module from MME, calculates the load weight factor of described MME;

Described Executive Module is used for the load weight factor that described load weight factor computing module calculates is arranged to described MME.

This ADMINISTRATION SUBSYSTEM also comprises acquiescence load weight factor computing module, is used for calculating in advance the acquiescence load weight factor of MME each MME of pond, and is handed down to corresponding MME.

Described ADMINISTRATION SUBSYSTEM also comprises the first judge module,

Described the first judge module is used for load weight factor that judgement load weight factor computing module calculates whether less than the acquiescence load weight factor of described MME, and notifies Executive Module with judged result;

Described Executive Module, concrete being used for arranges described load weight factor to described MME when the first judge module judges that described load weight factor is loaded weight factor less than the acquiescence of described MME.

Described the first judge module also is used for judging further whether the average overload duration of described MME surpasses default thresholding when the load weight factor of judging described calculating is not less than the acquiescence load weight factor of described MME;

Described Executive Module also is used for judging that at the first judge module the load weight factor of described calculating is not less than the acquiescence load weight factor of described MME, and the average overload duration of described MME improves the load thresholding of described MME when surpassing default thresholding.

Described ADMINISTRATION SUBSYSTEM also comprises: average load index computing module and the second judge module; Wherein,

Described receiver module also is used for receiving MME because of the warning information of the invalid transmission of load balancing;

Described average load index computing module is used for calculating the average load index in MME pond after receiver module is received described warning information;

Whether described the second judge module, the average load index that is used for judging described calculating greater than default average load index thresholding, and notifies Executive Module with judged result;

Described Executive Module is used for notifying the user of the new access of described MME refusal or abandoning signaling when the second judge module is judged described average load index greater than default average load index thresholding; When the second judge module judges that described average load index is not more than default average load index thresholding, the certain customers of described MME are updated on other MME.

Described ADMINISTRATION SUBSYSTEM is NMS or EMS.

The present invention has also correspondingly proposed a kind of MME load control system, and this system comprises above-mentioned ADMINISTRATION SUBSYSTEM and MME.

The present invention has also correspondingly proposed a kind of MME load control system, and this system comprises ADMINISTRATION SUBSYSTEM and MME; Wherein,

Described ADMINISTRATION SUBSYSTEM, be used for after receiving the warning information of MME, calculate the average load index in MME pond, and judge that whether described average load index is greater than default average load index thresholding, judge described average load index greater than default average load index thresholding, notify the user of the new access of described MME refusal or abandon signaling; Otherwise, the certain customers of described MME are updated on other MME;

Described MME is used for judging whether load balancing is effective, judges that load balancing is invalid, sends a warning message to ADMINISTRATION SUBSYSTEM.

Below in conjunction with specific embodiment, the present invention is described in further detail.

Embodiment 1

In the present embodiment, ADMINISTRATION SUBSYSTEM is NMS, and Fig. 3 is that the embodiment of the present invention 1 is carried out the method flow schematic diagram that the MME load is controlled, and as shown in Figure 3, this flow process comprises:

Step 301: the acquiescence load weight factor that each MME in the MME pond is set.

Concrete, the acquiescence load weight factor of MME-t

Wherein, Cap _tBe the professional ability of MME-t, can be expressed as the maximum user that MME-t supports and adhere to number, maximum carrying number, the maximum signaling quantity of processing etc., N is the quantity of MME in the MME pond.

A certain MME-i in step 302:MME pond (the load factor Oload of 1＜=i＜=N) _iWhen reaching the slight thresholding of overload, MME-i sends overload to eNodeB and begins (Overload Start) message, and triggers the threshold alarm of northbound interface, namely to the NMS alarm.

Need to prove the load factor Oload of MME _iThe load condition that reflects current MME, with professional ability, cpu load, online user number etc. are relevant.

Suppose that SerAbRatio is the ratio of current business ability and maximum traffic ability, MaxCpuRatio is current peak C PU occupancy, CurrUserRatio is the ratio of active user's number and maximum number of user, the current load factor computing formula of MME can for:

Oload _i＝SerAbRatio _i*MaxCpuRatio _i*CurrUserRatio _i

After step 303:NMS receives the alarm of northbound interface, obtain the performance index such as MME load factor and the average overload duration of MME by the FTP interface, and the load weight factor of calculating MME-i according to load factor and the professional ability of MME-i

Optionally, $\stackrel{\‾}{W{\mathrm{eigh}}_i}=\frac{(1-{\mathrm{Olaod}}_i){\mathrm{Cap}}_i}{{\mathrm{\Σ}}_{i=1}^N\left({1-\mathrm{Olaod}}_i\right){\mathrm{Cap}}_i}$

Wherein, Olaod _iBe the current load factor of equipment, Cap _iBe the professional ability of equipment, the maximum user that can be expressed as the equipment support adheres to number, maximum carrying number or the maximum signaling quantity of processing etc.

Step 304:NMS will calculate

Weigh with current MME-i configuration _iCompare.

Step 305:

NMS incites somebody to action by northbound interface

Be handed down to MME-i, be set to the weight factor of current MME-i, and notice is to eNodeB.

Step 306: if

NMS observes the current MME-i average overload duration of the MME AvgOloadTime in period the last period, if AvgOloadTime surpasses predefined thresholding, think that overladen situation frequently occurs this MME-i, but in fact other MME in the relative pond of this MME also have more rich ability space, so should suitably heighten the thresholding of the load factor of this MME.

If AvgOloadTime does not surpass predefined thresholding, think that the situation that load is leapt high occurs this MME-i, does not temporarily adjust load weight factor and thresholding.

Embodiment 2

In the present embodiment, ADMINISTRATION SUBSYSTEM is EMS, and Fig. 4 is that the embodiment of the present invention 2 is carried out the method flow schematic diagram that the MME load is controlled, and as shown in Figure 4, this flow process comprises:

Step 401: the acquiescence load weight factor that each MME in the MME pond is set.

Concrete, the acquiescence load weight factor of MME-t

Wherein, Cap _tBe the professional ability of MME-t, can be expressed as the maximum user that MME-t supports and adhere to number, maximum carrying number, the maximum signaling quantity of processing etc., N is the quantity of MME in the MME pond.

A certain MME-i in step 402:MME pond (the load factor Oload of 1＜=i＜=N) _iWhen reaching the slight thresholding of overload, MME-i sends overload to eNodeB and begins (Overload Start) message, and triggers the threshold alarm of northbound interface, namely to the EMS alarm.

Need to prove the load factor Oload of MME _iThe load condition that reflects current MME, with professional ability, cpu load, online user number etc. are relevant.

Suppose that SerAbRatio is the ratio of current business ability and maximum traffic ability, MaxCpuRatio is current peak C PU occupancy, and CurrUserRatio is the ratio of active user's number and maximum number of user.The current load factor computing formula of MME can for:

Oload _i＝SerAbRatio _i*MaxCpuRatio _i*CurrUserRatio _i

After step 403:EMS receives the alarm of northbound interface, obtain the performance index such as MME load factor and the average overload duration of MME by the FTP interface, and the load weight factor of calculating MME-i according to load factor and the professional ability of MME-i

Optionally, $\stackrel{\‾}{W{\mathrm{eigh}}_i}=\frac{\left({1-\mathrm{Olaod}}_i\right){\mathrm{Cap}}_i}{{\mathrm{\Σ}}_{i=1}^N\left({1-\mathrm{Olaod}}_i\right){\mathrm{Cap}}_i}$

Wherein, Olaod _iBe the current load factor of equipment, Cap _iBe the professional ability of equipment, the maximum user that can be expressed as the equipment support adheres to number, maximum carrying number or the maximum signaling quantity of processing etc.

Step 404:EMS will calculate

Weigh with current MME-i configuration _iCompare.

Step 405:

EMS incites somebody to action by northbound interface

Be handed down to MME-i, be set to the weight factor of current MME-i, and notice is to eNodeB.

Step 406: if

EMS observes the current MME-i average overload duration of the MME AvgOloadTime in period the last period, if AvgOloadTime surpasses predefined thresholding, think that overladen situation frequently occurs this MME-i, but in fact other MME in the relative pond of this MME also have more rich ability space, so should suitably heighten the thresholding of the load factor of this MME.

If AvgOloadTime does not surpass predefined thresholding, think that the situation that load is leapt high occurs this MME-i, does not temporarily adjust load weight factor and thresholding.

Embodiment 3

In the present embodiment, ADMINISTRATION SUBSYSTEM is NMS, and Fig. 5 is the described MME load balancing of the embodiment of the present invention 3 estimation flow schematic diagram, and as shown in Figure 5, this flow process comprises:

Step 501: whether assessment MME load balancing flow process comes into force.

Step 502:MME load balancing flow process comes into force, and eNodeB is when carrying out load sharing operation and making the load factor of MME drop under dependent thresholds (as slight load thresholding), and MME sends out Overload Stop message to eNodeB.

Step 503:MME load balancing flow process lost efficacy, MME produces the alarm of the serious thresholding of load factor, after NMS receives alarm by northbound interface, calculate the average load Index A vgOload in MME pond, and judge that AvgOload is whether higher than the slight thresholding of alarm.

Step 504: if AvgOload illustrates that higher than the thresholding of slight alarm the load in the pond is generally higher, do not need to adjust, but need the user of the new access of refusal or abandon signaling.

Step 505: if AvgOload lower than the thresholding of slight alarm, can seek a MME that load is minimum by Upper NM Station NMS, the user of current alarm MME is updated on target MME.

Embodiment 4

In the present embodiment, ADMINISTRATION SUBSYSTEM is EMS, and Fig. 6 is the described MME load balancing of the embodiment of the present invention 4 estimation flow schematic diagram, and as shown in Figure 6, this flow process comprises:

Step 601: whether assessment MME load balancing flow process comes into force.

Step 602:MME load balancing flow process comes into force, and eNodeB is when carrying out load sharing operation and making the load factor of MME drop under dependent thresholds (as slight load thresholding), and MME sends out Overload Stop message to eNodeB.

Step 603:MME load balancing flow process lost efficacy, MME produces the alarm of the serious thresholding of load factor, after EMS receives alarm by northbound interface, calculate the average load Index A vgOload in MME pond, and judge that AvgOload is whether higher than the slight thresholding of alarm.

Step 604: if AvgOload illustrates that higher than the thresholding of slight alarm the load in the pond is generally higher, do not need to adjust, but need the user of the new access of refusal or abandon signaling.

Step 605: if AvgOload lower than the thresholding of slight alarm, can seek a MME that load is minimum by Upper NM Station EMS, the user of current alarm MME is updated on target MME.

The above is only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.

Claims (20)

1. a mobile management entity MME duty control method, is characterized in that, the method comprises:

After ADMINISTRATION SUBSYSTEM is received load warning information from MME, calculate the load weight factor of described MME;

ADMINISTRATION SUBSYSTEM arranges described load weight factor to described MME.

2. method according to claim 1, is characterized in that, the method also comprises: described MME notifies described load weight factor to base station eNodeB.

3. method according to claim 1, is characterized in that, the method also comprises: ADMINISTRATION SUBSYSTEM is calculated the acquiescence load weight factor of each MME in the MME pond in advance, and is handed down to corresponding MME.

4. method according to claim 3, is characterized in that, after calculating the load weight factor of described MME, the method also comprises:

Whether the load weight factor that ADMINISTRATION SUBSYSTEM judges described calculating is less than the acquiescence load weight factor of described MME, judge that the load weight factor of described calculating is less than the acquiescence load weight factor of described MME, carry out subsequent operation, be about to described load weight factor and arrange to described MME.

5. method according to claim 4, is characterized in that, the method also comprises:

ADMINISTRATION SUBSYSTEM judges that the load weight factor of described calculating is not less than the acquiescence load weight factor of described MME, and the average overload duration of described MME improves the load thresholding of described MME over default thresholding.

6. method according to claim 3, is characterized in that, described calculating acquiescence load weight factor is:

According to

Calculate the acquiescence load weight factor Weigh of MME-t _t, wherein, Cap _tBe the professional ability of MME-t, N is the quantity of MME in the MME pond.

7. the described method of according to claim 1 to 6 any one, is characterized in that, the method also comprises:

MME judges whether load balancing is effective, judges that load balancing is invalid, sends a warning message to ADMINISTRATION SUBSYSTEM;

After ADMINISTRATION SUBSYSTEM is received described warning information, calculate the average load index in MME pond, and judge that whether described average load index is greater than default average load index thresholding, judge described average load index greater than default average load index thresholding, notify the user of the new access of described MME refusal or abandon signaling; Otherwise, the certain customers of described MME are updated on other MME.

8. method according to claim 7, is characterized in that, described MME judges that whether load balancing be effectively: judge whether load factor descends,

The load factor Oload of MME _i=SerAbRatio _i* MaxCpuRatio _i* CurrUserRatio _i, wherein, SerAbRatio is the ratio of current business ability and maximum traffic ability, and MaxCpuRatio is current peak C PU occupancy, and CurrUserRatio is the ratio of active user's number and maximum number of user.

9. the described method of according to claim 1 to 6 any one, is characterized in that, described ADMINISTRATION SUBSYSTEM is network management system NMS or Element management system EMS.

10. a MME duty control method, is characterized in that, the method comprises:

After ADMINISTRATION SUBSYSTEM is received the warning information of MME, calculate the average load index in MME pond, and judge that whether described average load index is greater than default average load index thresholding, judge described average load index greater than default average load index thresholding, notify the user of the new access of described MME refusal or abandon signaling; Otherwise, the certain customers of described MME are updated on other MME.

11. method according to claim 10 is characterized in that, before ADMINISTRATION SUBSYSTEM was received the warning information of MME, the method also comprised: MME judges whether load balancing is effective, judges that load balancing is invalid, sends a warning message to ADMINISTRATION SUBSYSTEM.

12. method according to claim 11 is characterized in that, described MME judges that whether load balancing be effectively: judge whether load factor descends,

The load factor Oload of MME _i=SerAbRatio _i* MaxCpuRatio _i* CurrUserRatio _i, wherein, SerAbRatio is the ratio of current business ability and maximum traffic ability, and MaxCpuRatio is current peak C PU occupancy, and CurrUserRatio is the ratio of active user's number and maximum number of user.

13. an ADMINISTRATION SUBSYSTEM is characterized in that, this ADMINISTRATION SUBSYSTEM comprises: receiver module, load weight factor computing module and Executive Module; Wherein,

Described receiver module is used for receiving the load warning information from MME;

Described load weight factor computing module after the load warning information of receiving at receiver module from MME, calculates the load weight factor of described MME;

Described Executive Module is used for the load weight factor that described load weight factor computing module calculates is arranged to described MME.

14. ADMINISTRATION SUBSYSTEM according to claim 13 is characterized in that, this ADMINISTRATION SUBSYSTEM also comprises acquiescence load weight factor computing module, is used for calculating in advance the acquiescence load weight factor of MME each MME of pond, and is handed down to corresponding MME.

15. ADMINISTRATION SUBSYSTEM according to claim 14 is characterized in that, described ADMINISTRATION SUBSYSTEM also comprises the first judge module,

Described the first judge module is used for load weight factor that judgement load weight factor computing module calculates whether less than the acquiescence load weight factor of described MME, and notifies Executive Module with judged result;

Described Executive Module, concrete being used for arranges described load weight factor to described MME when the first judge module judges that described load weight factor is loaded weight factor less than the acquiescence of described MME.

16. ADMINISTRATION SUBSYSTEM according to claim 15 is characterized in that,

Described the first judge module also is used for judging further whether the average overload duration of described MME surpasses default thresholding when the load weight factor of judging described calculating is not less than the acquiescence load weight factor of described MME;

Described Executive Module also is used for judging that at the first judge module the load weight factor of described calculating is not less than the acquiescence load weight factor of described MME, and the average overload duration of described MME improves the load thresholding of described MME when surpassing default thresholding.

17. according to claim 13 to the 16 described ADMINISTRATION SUBSYSTEM of any one, it is characterized in that, described ADMINISTRATION SUBSYSTEM also comprises: average load index computing module and the second judge module; Wherein,

Described receiver module also is used for receiving MME because of the warning information of the invalid transmission of load balancing;

Described average load index computing module is used for calculating the average load index in MME pond after receiver module is received described warning information;

Whether described the second judge module, the average load index that is used for judging described calculating greater than default average load index thresholding, and notifies Executive Module with judged result;

Described Executive Module is used for notifying the user of the new access of described MME refusal or abandoning signaling when the second judge module is judged described average load index greater than default average load index thresholding; When the second judge module judges that described average load index is not more than default average load index thresholding, the certain customers of described MME are updated on other MME.

18. according to claim 13 to the 16 described ADMINISTRATION SUBSYSTEM of any one, it is characterized in that, described ADMINISTRATION SUBSYSTEM is NMS or EMS.

19. a MME load control system is characterized in that, this system comprises the described ADMINISTRATION SUBSYSTEM of claim 13 to 18 any one and MME.

20. a MME load control system is characterized in that this system comprises ADMINISTRATION SUBSYSTEM and MME; Wherein,

Described ADMINISTRATION SUBSYSTEM, be used for after receiving the warning information of MME, calculate the average load index in MME pond, and judge that whether described average load index is greater than default average load index thresholding, judge described average load index greater than default average load index thresholding, notify the user of the new access of described MME refusal or abandon signaling; Otherwise, the certain customers of described MME are updated on other MME;

Described MME is used for judging whether load balancing is effective, judges that load balancing is invalid, sends a warning message to ADMINISTRATION SUBSYSTEM.

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