CN101489283B - System load controlling method based on token values - Google Patents
System load controlling method based on token values Download PDFInfo
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- CN101489283B CN101489283B CN2008100041167A CN200810004116A CN101489283B CN 101489283 B CN101489283 B CN 101489283B CN 2008100041167 A CN2008100041167 A CN 2008100041167A CN 200810004116 A CN200810004116 A CN 200810004116A CN 101489283 B CN101489283 B CN 101489283B
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- rrc connection
- rnc
- connection request
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Abstract
The present invention discloses a method for controlling system load based on token value. A wireless network controller determines to admit or refuse the wireless resource control connection request operation according to the token value required for the wireless resource control connection request transmitted by the user equipment and the characteristic of wireless resource control connection request for completing the control to system load. When the invention is applied, different token values are distributed in RNC according to different reasons for establishing RRC connection. The connection request is admitted or refused according to a certain control algorithm for obtaining the objective of load control. The solution in the invention does not require the evenly distribution of strategy of AC baked in the SIM card of UE in the network. The system load is not generated with large-scale swinging after adopting a load control strategy.
Description
Technical field
The present invention relates to the 3G (Third Generation) Moblie technical field, (Radio Network Controller, RNC) side group is in the control method of the system loading of token values more specifically to relate in a kind of 3G (Third Generation) Moblie (3G) network radio network controller.
Background technology
In the third generation mobile system, a RNC administers a plurality of base stations (Node B) down, and each Node B can be that (User Equipment UE) provides service to a plurality of subscriber equipmenies simultaneously.In the peak period of festivals or holidays telephone traffic and data service, a large amount of UE accesses can cause the system loading of RNC sharply soaring at short notice, exceed the maximum processing capability of RNC.System's overload operation can cause service quality reduction, systematic function to descend, and may cause system's machine of delaying to paralyse when serious.Therefore must be to the RNC control of loading, the assurance system can safely and steadily run at load boom period.
This system loading control generally is made up of two parts:
Load detection module is used for that system loading is carried out periodicity and detects;
Load control Executive Module is used for carrying out corresponding load control strategy according to above-mentioned testing result.
RNC equipment generally all adopts the overload control method based on system message that the 3G agreement is recommended at present.In 3-G (Generation Three mobile communication system), each UE all belong to an access category (AccessClass, AC), fire client identification module (Subscriber Identity Model in UE, SIM) in the card, wherein 0-9 is the regular grade user, and 11-15 is the special user.When finding the system loading overload, RNC determines that according to the system loading overload conditions which other UE of level inserts, revise system information block (System Information Block, SIB) UE inserts rank and forbids indication parameter in 3/4, forbids that by system broadcast message other user of these levels inserts then.After UE receives system broadcast message, upgrade SIB3 information.UE is sending RRC (Radio Resource Control, Radio Resource control) obtain the Access Class Barred List that is kept among the SIB3 before the connection request message, if the Access Class Barred of this UE correspondence is barred, then UE thinks that network does not allow to insert.Like this, system controls the system loading of RNC indirectly by forbidding the method for certain classification user access network.
Above-mentioned duty control method based on system message depends on the AC classification of being fired in the SIM card of UE among the mobile network (the AC classification of domestic consumer is equally distributed in the hypothetical network) in actual applications, require the user in an area must be evenly distributed on the 0-9 level, otherwise load control does not reach effect.Yet, the AC classification of various places SIM card probably is not equally distributed in the network operation of reality, the user of certain areas may concentrate on limited several AC classifications, if having limited the UE of these several AC classifications inserts, system is in idling conditions substantially, if do not limit, then system loading can't maintain stable state; Also promptly, this control strategy is enabled He Guan and is closed and cause occurring the significantly swing of system loading, has lost the meaning of system loading control.
Therefore,, provide a kind of effective method can guarantee system's operate as normal when a large amount of UE requests inserts, and system loading can significantly not swing, become problem demanding prompt solution in the industry at the situation of regional user's AC classification non-uniform Distribution.
Summary of the invention
Technical problem to be solved by this invention provides a kind of control method of the system loading based on token values, guarantee that when Bulk Call and data service insert RNC can operate as normal, avoid significantly dancing of the load that exists in other duty control methods simultaneously.
In order to address the above problem, the invention provides a kind of control method of the system loading based on token values,
The radio resource control RRC connection request that radio network controller (RNC) sends according to user equipment (UE) is operated and is remained the token values number in needed token values, this RRC connection request operation types, the system, nearest RRC connects the situation of foundation and the characteristic of this RRC connection request operation, decide admittance or refuse this RRC connection request operation, finish control system loading;
The characteristic of described RRC connection request operation comprises assurance operation, normal running, guarantees that wherein operation is not subjected to the constraint of token sum, directly admits;
Described RNC initialization is provided with load control cycle timer, and described load control cycle timer is used to be provided with the load control cycle;
The control that described RNC finishes system loading comprises:
T1, RNC connect the reason of setting up according to this RRC after receiving that request message is set up in the RRC connection of UE transmission, obtain corresponding RRC connection request and operate needed token values C
iCharacteristic with the operation of RRC connection request;
T2, RNC upgrade C
mValue: C
m=C
m+ C
i, C wherein
mBe the accumulated value at the token values of n-1 cycleoperation actual request, n is the integer greater than 1;
T3, judge whether the characteristic of described RRC connection request operation is to guarantee operation, if then upgrade C
vValue: C
v=C
v+ C
i, C wherein
vIt is the actual token values accumulated value of being admitted operation of n cycle;
T4, permission UE insert, and RNC sends RRC Connection Setup message to UE, finishes the control to system loading.
Further, said method also can comprise, among the described step t3,, then may further comprise the steps if the characteristic of described RRC connection request operation is not to guarantee operation,
If C
v+ C
i＞ThreshTks, wherein ThreshTks is the maximum token score value that RNC is distributed in a load control cycle, then refuses UE and inserts, RNC sends RRC Connection Reject message to UE, finishes the control to system loading.
Further, said method also can comprise, if C
v+ C
i≤ ThreshTks then may further comprise the steps,
If C
v+ C
i≤ InsuredTks, wherein InsuredTks is RNC minimum assurance token values in a load control cycle, then upgrades C
vValue: C
v=C
v+ C
iAllow UE to insert, RNC sends RRC Connection Setup message to UE, finishes the control to system loading.
Further, said method also can comprise, if C
v+ C
i＞InsuredTks then may further comprise the steps,
If P
Ctrl%＜100%, wherein P
Ctrl% is the discreet value in n cycle RRC connection request operation admittance ratio, the then random number between value 0-100; Judge that whether this random number is greater than P
Ctrl, if, then refusing UE and insert, RNC sends RRC Connection Reject message to UE, finishes the control to system loading.
Further, said method also can comprise, described P
Ctrl% is calculated as
C wherein
EstiBe the discreet value of accumulated value of the token values of n cycleoperation request,
C=C wherein
1+ (C
1-C
0)/SlopePower, SlopePower are the slope weighted reciprocal, SlopePower 〉=1, the n C during the cycle
0, C
1, C
mValue be C
0=C
1, C
1=C
m, C
m=0, C
v=0, wherein C is the token sum, C
0, C
1Represent the accumulated value ∑ C of the token values of n-2, the request of n-1 cycleoperation respectively
i
Further, said method also can comprise, if P
Ctrl% 〉=100% then upgrades C
vValue: C
v=C
v+ C
iAllow UE to insert, RNC sends RRC Connection Setup message to UE, finishes the control to system loading.
Further, said method also can comprise, is not more than P if judge described random number
Ctrl, then upgrade C
vValue: C
v=C
v+ C
iAllow UE to insert, RNC sends RRC Connection Setup message to UE, finishes the control to system loading.
Further, said method also can comprise, when described load control cycle timer then after, described RNC estimates the C of following one-period
EstiAnd P
Ctrl%.
Compared with prior art, use the present invention, in RNC, connect the different reasons of setting up and distribute different token values, connection request is admitted and refused to reach the purpose of load control according to certain control algolithm according to RRC; The AC classification that scheme in this invention need not to require to be fired in the SIM card of UE in the network is equally distributed, and significantly swinging can not appear in system loading yet behind the employing load control strategy.
Description of drawings
Fig. 1 is the schematic diagram that load is estimated process in the specific embodiment of the invention;
Fig. 2 is the flow chart that load control is carried out in the specific embodiment of the invention;
Fig. 3 is when the RRC attended operation is admitted in the specific embodiment of the invention, the interacting message between UE and UTRAN;
Fig. 4 is when the RRC attended operation is refused in the specific embodiment of the invention, the interacting message between UE and UTRAN.
Embodiment
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Main design of the present invention is that the resource in the RNC system is quantized with the token sum, and the RRC connection request of various different reasons is operated the consumer that is considered as resource, and its resource that need consume is weighed with token number (token values).Certain token values (a variety of causes that RRC connects the request of foundation sees the following form 1) that all RRC connection request operations distribute according to its reason for claim, for example, the token number of distributing to the RRC connection request operation of " position renewal " is 10, the token number of distributing to the RRC connection request operation of " conversation class calling " is that 15 (the numerical value here just illustrates, do not represent the token number of actual allocated), all must be before various RRC connection request operations are carried out to its token values that needs of system's application, also promptly apply for the system resource that it needs, needed token values number is operated according to this RRC connection request by system, this RRC connection request operation types, residue token values number in the system, nearest RRC connects the characteristic of situation about setting up and the operation of RRC connection request, and (characteristic of RRC connection request operation comprises and guarantees operation, normal running, guarantee that wherein operation is not subjected to the constraint of token sum, directly admit), decide admittance or the operation of refusal RRC connection request according to certain algorithm.
Table 1
| RRC connects the reason of setting up | The corresponding service type |
| Emergency Call，Inter-RAT cell re-selection，Inter-RAT cell change order， | Urgent call, intersystem cell reselection, intersystem handover request |
| Registration，Detach | RT register traffic (upgrading), Detach as the position |
| Originating?Conversational?Call | The conversation class caller |
| Terminating?Conversational?Call | Conversation class is called |
| Originating Streaming Call，Originating Interactive Call，Originating Background Call，Originating Subscribed traffic Call | Stream class, background classes, interactive class caller |
| Terminating Streaming Call，Terminating Interactive Call，Terminating Background Call | Stream class, background classes, interactive class are called |
| Originating?Low?Priority?Signalling | The caller of low priority signaling |
| Originating High Priority Signalling，Terminating High Priority Signalling | The high priority signaling |
| Terminating?Low?Priority?Signalling | The low priority signaling is called |
| Terminating-cause?unknown | Reason the unknown |
| Call?re-establishment | Call re-establishment |
Wherein, the time that the RRC of single UE connects is not eternal, and after a period of time, connection can be released; The resource that RNC distributes to the RRC connection is limited within a certain period of time, but is again reproducible after a period of time.The control cycle of among the present invention the define system during this period of time of resource-constrained in the RNC system being loaded is controlled the process of various RRC connection request operation application token values in each control cycle, reaches the purpose of control system load.
Comprise two parts among the present invention in the load controlling function:
1, system loading is periodically estimated module: be used for system loading is periodically estimated, and send estimation results to load control Executive Module;
System loading is periodically estimated module and is comprised load control cycle timer, is used for the load control cycle is carried out timing.
System loading is periodically estimated module, according to the RRC connection foundation request situation in preceding N cycle, estimates the quantity of next periodic request, calculates refusal ratio of following one-period, and sends estimation results to load control Executive Module.
2, load control Executive Module: be used for according to the estimation results that receives the process of application token values when control UE inserts.
System loading control Executive Module is adjudicated final control system load to the RRC connection request of setting up of UE.
Limited resources adopts token sum C to weigh in the system loading control cycle T, system resource token number (token values) C that the RRC attended operation of different reasons is spent
iExpression.If token values summation (the ∑ C of operation requests in period T
i) surpassed the token that system had sum C (being illustrated in the interior system of time T will not have enough resources to admit following operation), then refuse the operation requests of back, thing followed problem is: suppose T=T
1+ T
2If, at T
1In time period, ∑ C
i＞C is then at T
2Any operation all can't insert in time period.Adopt the interior possible token values request total amount C of estimated time section T in advance among the present invention
Esti, the method for load random rejection in time period T of overload solved the problems referred to above.
Being described below of predictive algorithm:
Suppose, the highest number of tokens that system can distribute in unit interval is MaxTksPerTimeSlot, the token number that the minimum assurance of system distributes in unit interval is InsuredTksPerTimeSlot, the cycle of system loading control is T, the reservation load ratio of system is RsdLdRatio%, then in the period T, highest number of tokens ThreshTks that system can distribute and minimum assurance token number InsuredTks are:
ThreshTks＝T*MaxTksPerTimeSlot*(1-RsdLdRatio％)
InsuredTks＝T*InsuredTksPerTimeSlot
In this arthmetic statement, two interior RRC situations of sense cycle were basis (N=2) before the load of following one-period was estimated, but were not limited to the situation of N=2.
If C
0, C
1Represent accumulated value (the ∑ C of the token values of n-2, the request of n-1 cycleoperation respectively
i), C
mBe accumulated value at the token values of n-1 cycleoperation actual request, C
EstiBe the discreet value of accumulated value of the token values of n cycleoperation request, C
vBe the actual token values accumulated value of being admitted operation of n cycle, when the n cycle begins, refresh C
0, C
1, C
mValue:
C
0＝C
1，C
1＝C
m，C
m＝0，C
v＝0
Calculate C simultaneously
Esti, its computing formula is as follows:
C＝C
1+(C
1-C
0)/SlopePower(SlopePower≥1)
In the n cycle, the discreet value of operation admittance ratio is P
Ctrl%, its computing formula is as follows
A kind of control method of the system loading based on token values, comprise, the RRC connection request that RNC sends according to UE is operated the characteristic of needed token values and the operation of RRC connection request, decides and admits or the operation of refusal RRC connection request, finishes the control to system loading.
Fig. 1 is the schematic diagram that load is estimated process, and is specific as follows:
Step 101:RNC initialization is provided with load control cycle timer, and described load control cycle timer is used to be provided with the load control cycle;
Step 102: load control cycle timer then after, RNC estimates the C of following one-period
EstiAnd P
Ctrl%.
Fig. 2 is the flow chart that load control is carried out; When the RRC attended operation was admitted, the interacting message between UE and UTRAN was seen Fig. 3; During RRC attended operation refusal, the interacting message between UE and UTRAN is seen Fig. 4.
The enforcement that load control is carried out, specific as follows,
Step 201:RNC receives that the RRC of UE connects and sets up request message;
Step 202: connect the reason of setting up according to RRC, obtain corresponding operating corresponding token score value C
iCharacteristic (guaranteeing operation/normal running) with the operation of RRC connection request;
Step 203: upgrade C
mValue: C
m=C
m+ C
i
Step 204: guarantee operation if be operating as, then execution in step 210, otherwise, carry out next step;
Step 205: if C
v+ C
i＞ThreshTks, then execution in step 212, otherwise, carry out next step;
Step 206: if C
v+ C
i≤ InsuredTks, then execution in step 210, otherwise, carry out next step;
Step 207: if P
Ctrl＜100%, then carry out next step, otherwise, execution in step 210;
Step 208: the random number between value 0-100;
Step 209: judge that whether this random number is greater than P
CtrlIf comparative result is true, then execution in step 212, otherwise, carry out next step;
Step 210: upgrade C
vValue: C
v=C
v+ C
i
Step 211: admit this operation, allow UE to insert, RNC sends RRC Connection Setup message to UE, jump procedure 213;
Step 212: refuse this operation, refusal UE inserts, and RNC sends RRC Connection Reject message to UE;
Step 213: finish.
In sum, the duty control method that the present invention proposes based on token values, the AC type that need not UE in the network evenly distributes, and this method realizes simple, effect is remarkable, the access that has well solved a large amount of UE can cause system loading sharply to raise and exceed the maximum processing capability problem of RNC, and the assurance system still can safely and steadily run when inserting the peak period.The present invention has been successfully applied to the S-CDMA of time division duplex, and (Time Duplex Synchronous Code Division MultipleAccess is TD-SCDMA) in network and wideband CDMA (the Wideband Code Division MultipleAccess) network.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1. the control method based on the system loading of token values is characterized in that,
The radio resource control RRC connection request that radio network controller (RNC) sends according to user equipment (UE) is operated and is remained the token values number in needed token values, this RRC connection request operation types, the system, nearest RRC connects the situation of foundation and the characteristic of this RRC connection request operation, decide admittance or refuse this RRC connection request operation, finish control system loading;
The characteristic of described RRC connection request operation comprises assurance operation, normal running, guarantees that wherein operation is not subjected to the constraint of token sum, directly admits;
Described RNC initialization is provided with load control cycle timer, and described load control cycle timer is used to be provided with the load control cycle;
The control that described RNC finishes system loading comprises:
T1, RNC connect the reason of setting up according to this RRC after receiving that request message is set up in the RRC connection of UE transmission, obtain corresponding RRC connection request and operate needed token values C
iCharacteristic with the operation of RRC connection request;
T2, RNC upgrade C
mValue: C
m=C
m+ C
i, C wherein
mBe the accumulated value at the token values of n-1 cycleoperation actual request, n is the integer greater than 1;
T3, judge whether the characteristic of described RRC connection request operation is to guarantee operation, if then upgrade C
vValue: C
v=C
v+ C
i, C wherein
vIt is the actual token values accumulated value of being admitted operation of n cycle;
T4, permission UE insert, and RNC sends RRC Connection Setup message to UE, finishes the control to system loading.
2. the method for claim 1 is characterized in that,
Among the described step t3,, then may further comprise the steps if the characteristic of described RRC connection request operation is not to guarantee operation,
If C
v+ C
i＞ThreshTks, wherein ThreshTks is the maximum token score value that RNC is distributed in a load control cycle, then refuses UE and inserts, RNC sends RRC Connection Reject message to UE, finishes the control to system loading.
3. method as claimed in claim 2 is characterized in that,
If C
v+ C
i≤ ThreshTks then may further comprise the steps,
If C
v+ C
i≤ InsuredTks, wherein InsuredTks is RNC minimum assurance token values in a load control cycle, then upgrades C
vValue: C
v=C
v+ C
iAllow UE to insert, RNC sends RRC Connection Setup message to UE, finishes the control to system loading.
4. method as claimed in claim 3 is characterized in that,
If C
v+ C
i＞InsuredTks then may further comprise the steps,
If P
Ctrl%＜100%, wherein P
Ctrl% is the discreet value in n cycle RRC connection request operation admittance ratio, the then random number between value 0-100; Judge that whether this random number is greater than P
Ctrl, if, then refusing UE and insert, RNC sends RRC Connection Reject message to UE, finishes the control to system loading.
5. method as claimed in claim 4 is characterized in that, described P
Ctrl% is calculated as
C wherein
EstiBe the discreet value of accumulated value of the token values of n cycleoperation request,
C=C wherein
1+ (C
1-C
0)/SlopePower, SlopePower are the slope weighted reciprocal, SlopePower 〉=1, the n C during the cycle
0, C
1, C
mValue be C
0=C
1, C
1=C
m, C
m=0, C
v=0, C
0, C
1Represent the accumulated value ∑ C of the token values of n-2, the request of n-1 cycleoperation respectively
i
6. method as claimed in claim 5 is characterized in that,
If P
Ctrl% 〉=100% then upgrades C
vValue: C
v=C
v+ C
iAllow UE to insert, RNC sends RRC Connection Setup message to UE, finishes the control to system loading.
7. method as claimed in claim 4 is characterized in that,
Be not more than P if judge described random number
Ctrl, then upgrade C
vValue: C
v=C
v+ C
iAllow UE to insert, RNC sends RRC Connection Setup message to UE, finishes the control to system loading.
8. method as claimed in claim 5 is characterized in that,
When described load control cycle timer then after, described RNC estimates the C of following one-period
EstiAnd P
Ctrl%.
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|---|---|---|---|
| CN2008100041167A CN101489283B (en) | 2008-01-17 | 2008-01-17 | System load controlling method based on token values |
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|---|---|---|---|
| CN2008100041167A CN101489283B (en) | 2008-01-17 | 2008-01-17 | System load controlling method based on token values |
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| US8837443B2 (en) | 2010-08-13 | 2014-09-16 | Sharp Kabushiki Kaisha | Reducing congestion in wireless communication networks |
| CN101984698A (en) * | 2010-11-02 | 2011-03-09 | 华为技术有限公司 | Test carrier frequency access method, relevant device and system |
| CN104486796B (en) * | 2014-12-08 | 2018-04-10 | 大唐移动通信设备有限公司 | A kind of connection control method and device based on signal command board load |
| US10423800B2 (en) * | 2016-07-01 | 2019-09-24 | Capitalogix Ip Owner, Llc | Secure intelligent networked architecture, processing and execution |
| CN109451842B (en) * | 2017-12-14 | 2022-03-01 | 北京小米移动软件有限公司 | Power saving method and device for user equipment, user equipment and base station |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1835632A (en) * | 2005-03-18 | 2006-09-20 | 中兴通讯股份有限公司 | Overload control method of broadband CDMA communication system |
| CN101060471A (en) * | 2006-06-23 | 2007-10-24 | 华为技术有限公司 | Token resource stream control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1835632A (en) * | 2005-03-18 | 2006-09-20 | 中兴通讯股份有限公司 | Overload control method of broadband CDMA communication system |
| CN101060471A (en) * | 2006-06-23 | 2007-10-24 | 华为技术有限公司 | Token resource stream control method |
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