CN102811462A - Overload processing method and system for mobility management entity - Google Patents
Overload processing method and system for mobility management entity Download PDFInfo
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- CN102811462A CN102811462A CN201110146633XA CN201110146633A CN102811462A CN 102811462 A CN102811462 A CN 102811462A CN 201110146633X A CN201110146633X A CN 201110146633XA CN 201110146633 A CN201110146633 A CN 201110146633A CN 102811462 A CN102811462 A CN 102811462A
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Abstract
The invention discloses an overload processing method for a mobility management entity, the method comprises the following steps: when UE (user equipment) registered in the overload MME (mobility management entity ) requests to access the overload MME, completing an establishing process of RRC (radio resource control) with the UE; establishing types and overload operation types of the MME according to business of the UE, and judging whether to reject the business of the UE accessing the overload MME or not; guiding the UE which has registered in the overload MME and is rejected accessing the UE to other normal MMEs to carry out business access by a process of load redistribution. The invention further discloses an evolution base station, by adopting the method and the base station, the UE registered in the overload MME can still carry out normal business access when the MME is overloaded.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of overload processing method and system of mobile management entity.
Background technology
Mobile management entity (MME) is under improper situation, and during like hardware and/or software fault, MME possibly transship.When overload took place, MME was through " overload beginning " process of S1AP agreement, reached with this MME to have the load balancing between the evolution base station (eNode B, abbreviation eNB) that the S1 interface is connected.
Concrete load balancing process is as shown in Figure 1,
At first; The MME1 that overload takes place initiates overload beginning process, sends overload beginning message to connected eNode B, wherein; In the overload beginning message; Can carry the overload action type after MME transships, thereby the MME of the service access overload of control eNode B restriction UE specifically comprises following several kinds:
1, " reject all RRC connection establishments for non-emergency mobile originated data transfer "; Requiring eNode B refusal to send cause value to this MME is the access request of " mo-data ", and the master who promptly refuses UE exhales data service to insert;
2, " reject all RRC connection establishments for signalling " requires eNode B refusal to send the access request of cause value for " mo-data ", " mo-signalling " to this MME; The master who promptly refuses UE exhales data service and the main signaling traffic of exhaling to insert;
3, " only permit RRC connection establishments for emergency sessions and mobile terminated services " requires eNode B refusal to send the access request of cause value for " highPriorityAccess ", " mo-data ", " mo-signalling " to this MME; The high priority of promptly refusing UE inserts, main data service and the main signaling traffic of exhaling of exhaling inserts, and is that " emergency " and " mt-Access " is promptly urgent and exhaled (comprise and exhaled data and quilt to be exhaled signaling traffic) access and only allow cause value.
The overload of eNode B record MME1 is accomplished overload beginning process, and afterwards, eNode B will carry out subsequent operation based on the indication of MME in overload beginning message;
Connect the request of foundation when sending Radio Resource control (RRC) to eNode B at the UE of MME1 registration; When attempting to insert MME1; ENode B will be according to the type of service of UE request access; With above-mentioned overload action type; Judge whether to refuse the access of UE, insert, then send the RRC connection refused message to UE if be judged as refusal; And in this message, carry a stand-by period, indication UE initiates RRC again and connects after the stand-by period;
After having passed through the above-mentioned stand-by period, UE will initiate RRC through eNode B to MME1 once more and connect, if the overload of MME1 is not removed, then eNode B will refuse the access of UE once more.
By finding out for the processing of overload MME in the prior art; For the UE that is registered to overload MME; ENodeB possibly refuse UE and insert according to type of service and the overload action type of MME that UE request inserts, and this can have a strong impact on the UE user's who registers at this MME impression.Different according to overload operation, the lightest overload is treated to refusal data service access, causes that this UE can't carry out data service before overload is removed; The strongest overload is treated to only to be accepted urgency traffic and inserts, and causes that this UE can't carry out business such as tracing section updating, short message before overload is removed; In a word, after the MME overload, prior art can't guarantee that the UE that has been registered in overload MME can carry out normal service access.
Summary of the invention
The embodiment of the invention provides a kind of overload processing method of mobile management entity, can when MME transships, make the UE that is registered to overload MME still can carry out normal service access.
The embodiment of the invention provides a kind of evolution base station, can when MME transships, make the UE that is registered to overload MME still can carry out normal service access.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of mobile management entity overload processing method, this method comprises:
When the UE request that is registered to overload MME inserted said overload MME, completion was connected the process of foundation with the RRC of said UE;
Set up the overload action type of type and said MME according to the business of said UE, judge whether to refuse the said overload of the service access MME of said UE;
To be registered to said overload MME, and be rejected the said UE of access, and, guide to other normal MME and carry out service access through the heavy assigning process of load.
Preferably, said overload action type begins message through the overload of sending after the said MME overload and obtains.
Preferably, said business is set up type, sets up acquisition request through the RRC connection that said UE initiates.
Preferably, will be registered to said overload MME, and be rejected the said UE of access, and, guide to other normal MME and carry out service access, comprise through the heavy assigning process of load:
Sending cause value to said UE is the RRC connection release message of load balancing, guides the said UE initiating updating of tracking area that is registered to overload MME, reselects MME;
In the tracing section updating process that said UE initiates; For said UE selects other normal MME except that said overload MME in the MME pond; And accomplish the tracing section updating process of said UE at said normal MME, said UE is guided to said normal MME carry out service access.
A kind of evolution base station, this base station comprises:
Connect and to set up module, be used for when the UE request that is registered to overload MME inserts said overload MME, completion is connected the process of foundation with the RRC of said UE;
Judge module is used for setting up after module is accomplished and the RRC of said UE is connected the process of foundation in said connection, sets up the overload action type of type and said MME according to the business of said UE, judges whether to refuse the said overload of the service access MME of said UE;
Bootstrap module links to each other with said judge module, is used for being registered to said overload MME, and is rejected the said UE of access, through the heavy assigning process of load, guides to other normal MME and carries out service access.
Preferably, said judge module comprises:
Overload type acquiring unit is used for beginning message through the overload that send MME overload back and obtains said overload type;
Business is set up the type acquiring unit, and the RRC connection that is used for initiating through UE is set up the said business of acquisition request and set up type;
Judging unit; Be used for after said connection is set up the module completion and the RRC of said UE is connected the process of foundation; Overload type of obtaining according to said overload type acquiring unit and said business are set up the said business that the type acquiring unit obtains and are set up type, judge whether to refuse the service access overload MME of said UE.
Preferably, said bootstrap module comprises:
The unit is initiated in guiding, is used for after said judge module is judged the service access of the said UE of refusal, and sending cause value to said UE is the RRC connection release message of load balancing, guides the said UE initiating updating of tracking area that is registered to overload MME, reselects MME;
The unit is accomplished in guiding; Initiating the unit with said guiding links to each other; Be used for tracing section updating process in said UE initiation; For said UE selects other normal MME except that overload MME in the MME pond, and accomplish tracing section updating, UE is guided to normal MME carry out service access at this normal condition MME.
Visible by above-mentioned technical scheme; The overload processing method and the evolution base station of this mobile management entity of the present invention; When MME transships, will register at this MME, but refusal inserts the UE of overload MME; Guide to other normal MME through the heavy assigning process of the load of the present invention's design, can carry out normal service access at the UE of overload MME registration thereby make.
Description of drawings
Fig. 1 is the process flow figure after the MME overload in the prior art;
Fig. 2 is the process flow figure after the embodiment of the invention MME overload;
Fig. 3 is the processing method message flow chart after the embodiment of the invention MME overload;
Fig. 4 is the evolution base station structural representation of the embodiment of the invention;
Fig. 5 is the judge module structural representation of the embodiment of the invention;
Fig. 6 is the bootstrap module structural representation of the embodiment of the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, to further explain of the present invention.
The present invention mainly is when MME transships, will be in this MME registration, but refusal inserts the UE of overload MME, guides to other normal MME through the heavy assigning process of load, can carry out normal service access thereby make at the UE of overload MME registration.
Fig. 2 is the MME overload process flow figure of the embodiment of the invention, and as shown in Figure 2, this method comprises the steps:
When step 202, UE request insert overload MME, set up the overload action type of type and MME according to the business of UE, the service access that judges whether to refuse UE is transshipped MME;
In the step 202, said overload action type, the overload that can send from MME overload back begins to obtain the message; Said business is set up type, can connect the request of foundation from the radio resource control RRC that UE initiates to obtain.
In the step 203, concrete bootup process can utilize the load balancing process of MME to realize, for example: initiating cause value to UE is the RRC connection release message of load balancing, guides the said UE initiating updating of tracking area that is registered to overload MME, reselects MME;
After UE receives that cause value is the RRC connection release message of " load balancing "; Can think that current registered MME is in unloaded state; Then the special casual user's terminal iidentification (GUTI) in the whole world that will originally preserve is changed to illegal state, and the initiating updating of tracking area process;
In the tracing section updating process that said UE initiates, for said UE selects other normal MME except that overload MME in the MME pond, and accomplish tracing section updating at this normal condition MME, UE is guided to normal MME carry out service access.
Above-mentioned process, tracing section updating process and the UE that is connected the process of foundation with the RRC of UE, specifically judges whether to refuse the UE service access receives that cause value is that processing procedure after the RRC connection release message of " load balancing " is existing mature technology; The present invention does not improve these detailed processes, therefore repeats no more here.
Particularly, the concrete message flow of said method is as shown in Figure 3,
Step 301, overload beginning process, MME1 transships, and through overload beginning message informing eNB, contains the overload operation field in the message, is used to carry the overload operational order.After eNB received overload beginning message, it was overload that MME1 is set, and stored the instruction that the overload operation field is carried, and was used for subsequent operation.
Process is set up in step 302, RRC connection, specifically is to be sent to eNB by UE to be directed against the RRC connection foundation request that overload MME is MME1, and eNB returns the RRC connection and sets up message, and UE sends the RRC connection setup complete message to eNB again, and completion RRC connection is set up.Certainly; This step is the situation that has been registered to overload MME to UE, whether is registered to overload MME if confirm UE as yet, then can send RRC to overload MME at UE and connect when setting up request; Further judge whether UE is registered to MME1; If UE is not registered to MME1, then UE is selected to the MME pond, to remove other normal MME of MME1, be assumed to be MME2; Otherwise after the execution of step 302, get into step 303;
Step 303 judges whether to refuse the service access of UE, if judge and break off relations access, then execution in step 304, otherwise carry out normal UE service access process.
Step 304, eNB initiates the heavy assigning process of load, and sending cause value to UE is the RRC connection release message of load balancing, and guiding UE initiating updating of tracking area is reselected MME; After UE receives that cause value is the RRC connection release message of load balancing, think that current registered MME1 is in unloaded state, can the GUTI that is distributed by MME1 that originally preserved be changed to illegal state; Send TAU/RRC to eNB and connect the request of foundation (the target MME that carries in the request is empty, i.e. NULL MME), and the initiating updating of tracking area process; In the tracing section updating process; ENB is that UE selects other normal MME except that MME1 in the MME pond, is assumed to be MME2, and accomplishes the tracing section updating at MME2; UE is guided to normal MME2, carry out the follow-up business access procedure.
The present invention also provides a kind of evolution base station, is used to realize above-mentioned processing method, and this base station is as shown in Figure 4, comprising:
Connect and to set up module 401, be used for when the UE request that is registered to overload MME inserts said overload MME, completion is connected the process of foundation with the radio resource control RRC of said UE;
Wherein, said judge module 402 is as shown in Figure 5, comprising:
Overload type acquiring unit 501 is used for beginning message through the overload that send MME overload back and obtains said overload type;
Business is set up type acquiring unit 502, and the RRC connection that is used for initiating through UE is set up the said business of acquisition request and set up type;
Judging unit 503; Be used for after said connection is set up module 401 completion and the RRC of said UE is connected the process of foundation; Overload type of obtaining according to said overload type acquiring unit 501 and said business are set up the said business that type acquiring unit 502 obtains and are set up type, judge whether to refuse the service access overload MME of said UE.
In addition, said bootstrap module 403 is as shown in Figure 6, comprising:
Visible by the above embodiments; The overload processing method and the evolution base station of this mobile management entity of the present invention; When MME transships, will register at this MME, but refusal inserts the UE of overload MME; Guide to other normal MME through the heavy assigning process of the load of the present invention's design, can carry out normal service access at the UE of overload MME registration thereby make.
Claims (7)
1. mobile management entity overload processing method is characterized in that this method comprises:
When the user terminal UE request that is registered to the overload mobile management entity MME inserted said overload MME, completion was connected the process of foundation with the radio resource control RRC of said UE;
Set up the overload action type of type and said MME according to the business of said UE, judge whether to refuse the said overload of the service access MME of said UE;
To be registered to said overload MME, and be rejected the said UE of access, and, guide to other normal MME and carry out service access through the heavy assigning process of load.
2. mobile management entity overload processing method as claimed in claim 1 is characterized in that, said overload action type begins message through the overload of sending after the said MME overload and obtains.
3. mobile management entity overload processing method as claimed in claim 1 is characterized in that said business is set up type, sets up acquisition request through the RRC connection that said UE initiates.
4. like claim 1,2 or 3 described mobile management entity overload processing methods, it is characterized in that, will be registered to said overload MME; And be rejected the said UE of access; Through the heavy assigning process of load, guide to other normal MME and carry out service access, comprising:
Sending cause value to said UE is the RRC connection release message of load balancing, guides the said UE initiating updating of tracking area that is registered to overload MME, reselects MME;
In the tracing section updating process that said UE initiates; For said UE selects other normal MME except that said overload MME in the MME pond; And accomplish the tracing section updating process of said UE at said normal MME, said UE is guided to said normal MME carry out service access.
5. an evolution base station is characterized in that, this base station comprises:
Connect and to set up module, be used for when the user terminal UE of the mobile management entity MME that is registered to overload request inserts said overload MME, completion is connected the process of foundation with the radio resource control RRC of said UE;
Judge module is used for setting up after module is accomplished and the RRC of said UE is connected the process of foundation in said connection, sets up the overload action type of type and said MME according to the business of said UE, judges whether to refuse the said overload of the service access MME of said UE;
Bootstrap module links to each other with said judge module, is used for being registered to said overload MME, and is rejected the said UE of access, through the heavy assigning process of load, guides to other normal MME and carries out service access.
6. evolution base station as claimed in claim 5 is characterized in that, said judge module comprises:
Overload type acquiring unit is used for beginning message through the overload that send MME overload back and obtains said overload type;
Business is set up the type acquiring unit, and the RRC connection that is used for initiating through UE is set up the said business of acquisition request and set up type;
Judging unit; Be used for after said connection is set up the module completion and the RRC of said UE is connected the process of foundation; Overload type of obtaining according to said overload type acquiring unit and said business are set up the said business that the type acquiring unit obtains and are set up type, judge whether to refuse the service access overload MME of said UE.
7. evolution base station as claimed in claim 5 is characterized in that, said bootstrap module comprises:
The unit is initiated in guiding, is used for after said judge module is judged the service access of the said UE of refusal, and sending cause value to said UE is the RRC connection release message of load balancing, guides the said UE initiating updating of tracking area that is registered to overload MME, reselects MME;
The unit is accomplished in guiding; Initiating the unit with said guiding links to each other; Be used for tracing section updating process in said UE initiation; For said UE selects other normal MME except that overload MME in the MME pond, and accomplish tracing section updating, UE is guided to normal MME carry out service access at this normal condition MME.
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| WO2018133604A1 (en) * | 2017-01-23 | 2018-07-26 | 中兴通讯股份有限公司 | Access control method, network element, user equipment, and computer storage medium |
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| WO2015172376A1 (en) * | 2014-05-16 | 2015-11-19 | 华为技术有限公司 | Method and device for accessing network by user equipment of voice service |
| US10425955B2 (en) | 2015-05-29 | 2019-09-24 | Huawei Technologies Co., Ltd. | Bearer setup method and apparatus |
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| WO2017076110A1 (en) * | 2015-11-06 | 2017-05-11 | 中兴通讯股份有限公司 | Overload control method, device and system |
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| US11751121B2 (en) | 2016-03-31 | 2023-09-05 | Huawei Technologies Co., Ltd. | Radio access control method, apparatus, and system |
| US11064421B2 (en) | 2016-03-31 | 2021-07-13 | Huawei Technologies Co., Ltd. | Radio access control method, apparatus, and system |
| CN108605266B (en) * | 2016-03-31 | 2020-09-11 | 华为技术有限公司 | Wireless access control method, device and system |
| CN108605266A (en) * | 2016-03-31 | 2018-09-28 | 华为技术有限公司 | Wireless access control method, apparatus and system |
| CN109952783A (en) * | 2016-11-08 | 2019-06-28 | 瑞典爱立信有限公司 | Faulty equipment load protection |
| CN109952783B (en) * | 2016-11-08 | 2022-04-05 | 瑞典爱立信有限公司 | Fault device load protection |
| CN108347746A (en) * | 2017-01-23 | 2018-07-31 | 中兴通讯股份有限公司 | Connection control method, access network elements and user equipment |
| CN108347743A (en) * | 2017-01-23 | 2018-07-31 | 中兴通讯股份有限公司 | Connection control method, access network elements, core network element and user equipment |
| WO2018133604A1 (en) * | 2017-01-23 | 2018-07-26 | 中兴通讯股份有限公司 | Access control method, network element, user equipment, and computer storage medium |
| CN108347746B (en) * | 2017-01-23 | 2024-05-03 | 中兴通讯股份有限公司 | Access control method, access network element and user equipment |
| CN110798853A (en) * | 2018-08-02 | 2020-02-14 | 成都鼎桥通信技术有限公司 | Communication method, device and system |
| CN110798853B (en) * | 2018-08-02 | 2023-04-25 | 成都鼎桥通信技术有限公司 | Communication method, device and system |
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