CN101415174A - Mobile management net element, method and system for recovering network - Google Patents

Mobile management net element, method and system for recovering network Download PDF

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Publication number
CN101415174A
CN101415174A CNA200810219259XA CN200810219259A CN101415174A CN 101415174 A CN101415174 A CN 101415174A CN A200810219259X A CNA200810219259X A CN A200810219259XA CN 200810219259 A CN200810219259 A CN 200810219259A CN 101415174 A CN101415174 A CN 101415174A
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communication equipment
communication interface
normal
communication
operate
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CNA200810219259XA
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CN101415174B (en
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曾文杰
王利杰
吕阳明
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN200810219259XA priority Critical patent/CN101415174B/en
Publication of CN101415174A publication Critical patent/CN101415174A/en
Priority to PCT/CN2009/000535 priority patent/WO2010057357A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition

Abstract

The embodiment of the invention discloses a method for recovering a mobile management network element and a network as well as a system thereof. The network recovery method comprises: the working state of communication equipment in the same location zone or the working state of a communication interface of the communication equipment is determined; the communication equipment is a mobile switching center or a visitor location register; the working state information of the communication equipment or the communication interface in the same location zone is recorded; when the communication equipment or the communication interface which communicates with the mobile management network element breaks down, the communication interface or the communication equipment which works normally in the location zone is selected for communication according to the recorded working state information of the communication equipment or the communication interface. By adopting the embodiment of the invention, network recovery capacity and reliability can be effectively improved.

Description

Mobile management net element, network recovery method and system
Technical field
The present invention relates to mobile communication technology, relate in particular to a kind of mobile management net element, network recovery method and system.
Background technology
There is CS (Circuit Switched, circuit switching) in the mobile communication system, PS (Packet Switched, packet switching) two big switching domains, the CS territory provides the circuit-switched service of phone and so on, and the PS territory provides the packet switching service of surfing Internet with cell phone and so on.Be (promptly to support two kinds of business of CS and PS simultaneously under the situation of I in the network work pattern, portable terminal can be enjoyed two kinds of services of CS/PS simultaneously), the equipment MSC in CS territory (Mobile-services Switching Center, mobile switching centre) or the Gs interface function between the equipment SGSN (Serving GPRS Support Node, GPRS serving GPRS support node) in VLR (Visitors LocationRegister) and PS territory enable.When MS (Mobile Station, travelling carriage) also network enabled pattern I, MS can initiate to unite request flow process (as: Combined GPRS/IMSI Attach, Combined RA/LA Updating), simultaneously in the CS territory, the registration of PS territory.At this moment, some interactive operations can take place in the Gs interface between MSC/VLR and the SGSN.
Under the Iu-Flex networking scenario, a plurality of MSC/VLR and RAN (Radio Access Network wireless access network) node can be formed a CS Pool district, RAN node in the Pool district all is connected with all MSC/VLR, therefore, the LA (Location Area, lane place) of a RAN node covering will be under the jurisdiction of a plurality of MSC/VLR.
The inventor finds that there is following shortcoming in prior art in implementing process of the present invention:
When certain MSC/VLR in the CS Pool district breaks down, the MSC/VLR that SGSN can choose this fault according to the lane place and the IMSI-V value of MS registration, the combined process flow of MS initiation at this moment will be failed, and Gs interface can't operate as normal; This IMSI-V value calculates a V value [(IMSI div10) modulo 1000] according to IMSI (International Mobile StationEquipment Indentifier, International Mobile Station Equipment Identity) number.In addition, the link layer between SGSN and the MSC/VLR breaks down and also can communication failure occur because of the communication interface between SGSN and MSC/VLR (Gs interface).Therefore, under MSC/VLR or communication interface failure situations, the non-constant of the recovery capability of network has seriously influenced network performance.
Summary of the invention
The embodiment of the invention provides a kind of mobile management net element, network recovery method and system, can improve the recovery capability and the reliability of network.
The network recovery method that the embodiment of the invention provides comprises:
Determine the operating state of the communication equipment in the same position district, or and described communication equipment between the operating state of communication interface; Described communication equipment is mobile switching centre or Visited Location Registor;
Write down the communication equipment in the described same position district or the work state information of communication interface;
When the communication equipment of communicating by letter with mobile management net element or communication interface break down,, in described lane place, select the communication equipment or the communication interface of operate as normal to communicate according to the communication equipment of described record or the work state information of communication interface.
The embodiment of the invention also provides a kind of mobile management net element, comprising:
Determination module is used for determining the operating state at the communication equipment in same position district, or and described communication equipment between the operating state of communication interface;
Logging modle is used for writing down the communication equipment in described same position district or the work state information of communication interface;
Communication module, when the communication equipment of communicating by letter with mobile management net element or communication interface break down, mobile management net element selects the communication equipment or the communication interface of operate as normal to communicate in described lane place according to the communication equipment of described record or the work state information of communication interface.
Correspondingly, the present invention also provides a kind of network recovery system, comprising: mobile management net element and be positioned at the communication equipment in same position district;
Described mobile management net element is used for determining the operating state at the communication equipment in same position district, or and described communication equipment between the operating state of communication interface; Described communication equipment is mobile switching centre or Visited Location Registor;
When the communication equipment that is connected with mobile management net element or communication interface broke down, mobile management net element selected the communication equipment or the communication interface of operate as normal to communicate in described lane place according to the work state information of described record.
Implement the embodiment of the invention, have following beneficial effect:
Operating state by the communication equipment of active detecting in the same position district, or and described communication equipment between the operating state of communication interface, and when the communication equipment that communicates with or communication interface break down, in time switch on the communication equipment or communication interface of operate as normal, improved the recovery capability and the reliability of network effectively.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of network recovery method embodiment among the present invention;
Fig. 2 is the schematic flow sheet of the another embodiment of network recovery method among the present invention;
Fig. 3 is the schematic flow sheet of the another embodiment of network recovery method among the present invention;
Fig. 4 is the schematic flow sheet of the another embodiment of network recovery method among the present invention;
Fig. 5 is the schematic flow sheet of the another embodiment of network recovery method among the present invention;
Fig. 6 is the structural representation of network recovery system embodiment among the present invention;
Fig. 7 is the structural representation of the another embodiment of network recovery system among the present invention;
Fig. 7 a is that as shown in Figure 7 SGSN is MS 1Choose the schematic diagram of the MSC/VLR-2 of normal operating conditions;
Fig. 7 b is that as shown in Figure 7 SGSN is MS 2Choose the schematic diagram of the MSC/VLR-3 of normal operating conditions;
Fig. 7 c is that as shown in Figure 7 SGSN is MS 3Choose the schematic diagram of the MSC/VLR-4 of normal operating conditions;
Fig. 7 d is that as shown in Figure 9 SGSN is MS 1Choose the schematic diagram of the MSC/VLR-2 of normal operating conditions;
Fig. 7 e is that as shown in Figure 9 SGSN is MS 3Choose the schematic diagram of the MSC/VLR-4 of normal operating conditions;
Fig. 8 is the structural representation of mobile management net element embodiment among the present invention;
Fig. 9 is the structural representation of the another embodiment of mobile management net element among the present invention;
Figure 10 is the structural representation of the another embodiment of mobile management net element among the present invention.
Embodiment
The embodiment of the invention provides a kind of mobile management net element, network recovery method and system, can improve the recovery capability and the reliability of network.
In embodiments of the present invention, when breaking down for the communication interface between MSC/VLR and mobile management net element and the MSC/VLR, it is similar reselecting the principle that MSC/VLR or communication interface communicate, therefore in the following embodiments, mainly communicate and be example, network recovery method, mobile management net element and network recovery system that the embodiment of the invention provides are described to reselect MSC/VLR.
Referring to Fig. 1, be the schematic flow sheet of network recovery method embodiment among the present invention.
The network recovery method that present embodiment provides comprises:
Step 100 is determined the operating state of the communication equipment in the same position district, or and described communication equipment between the operating state of communication interface; Described communication equipment is mobile switching centre or Visited Location Registor;
Step 101 writes down the communication equipment in the described same position district or the work state information of communication interface;
Step 102, when the communication equipment of communicating by letter with mobile management net element or communication interface break down, according to the communication equipment of described record or the work state information of communication interface, in described lane place, select the communication equipment or the communication interface of operate as normal to communicate.
Implement above-mentioned network recovery method, can initiatively be recorded in the operating state of the communication equipment in the same position district, or and described communication equipment between the operating state of communication interface, and when communication equipment or communication interface break down, in time switch on the communication equipment or communication interface of operate as normal, improved the recovery capability and the reliability of network effectively.
Referring to Fig. 2, be the schematic flow sheet of the another embodiment of network recovery method among the present invention.
The network recovery method that present embodiment provides is based on method shown in Figure 1, describes the idiographic flow that mobile management net element is determined the operating state of in same position district mobile switching centre or Visited Location Registor emphatically:
Step 200, mobile management net element is to each mobile switching centre or Visited Location Registor transmit status detect-message in the same position district; This state-detection message is the existing request message of mobile management net element to mobile switching centre or Visited Location Registor transmission, for example: existing BSSAP+-LOCATION-UPDATE-REQUEST message in the 3GPP protocol specification; Or newly-increased state detection message, for example BSSAP+-STATUS-TEST-TEST message or the like.
Step 201 is judged in duration or number of times that timer is provided with, whether receives the response message that each mobile switching centre or Visited Location Registor return;
If mobile switching centre or Visited Location Registor operating state are normal, then can in time respond the state-detection message that this mobile management net element sends, for example: when mobile management net element sends in the 3GPP protocol specification existing BSSAP+-LOCATION-UPDATE-REQUEST message to mobile switching centre or Visited Location Registor, mobile switching centre or Visited Location Registor operate as normal then can in time be returned response messages such as BSSAP+-LOCATION-UPDATE-ACCEPT or BSSAP+-LOCATION-UPDATE-REJECT to mobile management net element; If mobile management net element is when mobile switching centre or Visited Location Registor transmission BSSAP+-STATUS-TEST-TEST message, mobile switching centre or Visited Location Registor operate as normal then can in time be returned the BSSAP+-STATUS-TEST-ACK response message to mobile management net element.
If in duration or number of times that timer is provided with, receive response message to described state-detection message, then change step 202 over to, if in duration or number of times that timer is provided with, do not receive response message, then change step 203 over to described state-detection message;
Step 202 is judged the mobile switching centre or the Visited Location Registor operate as normal that send this response message;
Step 203 judges that the mobile switching centre or the Visited Location Registor that receive this state-detection message break down.
After finishing above-mentioned mobile management net element and determining the flow process of operating state of mobile switching centre in the same position district or Visited Location Registor, according to result of determination, the work state information of mobile switching centre or Visited Location Registor in the mobile management net element record position district;
Particularly, according to the situation of returning response message, if judge a mobile switching centre or Visited Location Registor operate as normal, then the operating state with normal this mobile switching centre of identification record or Visited Location Registor is an operate as normal; This normal sign is corresponding one by one with mobile switching centre or Visited Location Registor; Break down if judge a mobile switching centre or Visited Location Registor, then write down the operating state of this mobile switching centre or Visited Location Registor for breaking down with a failure identification; This failure identification is corresponding one by one with mobile switching centre or Visited Location Registor.
Implement above-mentioned network recovery method, mobile management net element passes through to communication equipment or communication interface transmit status detect-message, and the response of this state-detection message being returned according to communication equipment or communication interface, by normal sign or failure identification, be recorded in the operating state of the communication equipment in the same position district, or the operating state of the communication interface between mobile management net element and the described communication equipment, and when communication equipment or communication interface break down, in time switch on the communication equipment or communication interface of operate as normal, improved the recovery capability and the reliability of network effectively.
Referring to Fig. 3, be the schematic flow sheet of the another embodiment of network recovery method among the present invention.
Present embodiment is described the work state information of mobile management net element according to its record emphatically based on network recovery method shown in Figure 1, selects the mobile switching centre of operate as normal or the process that Visited Location Registor connects in the lane place:
Step 300, mobile management net element are determined the mobile switching centre or the Visited Location Registor of operate as normal according to the work state information of its record; Particularly, mobile management net element is with the communication equipment of normal identification record operate as normal or the work state information of communication interface, this normal sign is corresponding one by one with communication equipment or communication interface, the communication equipment that breaks down with failure identification record or the work state information of communication interface, this failure identification is corresponding one by one with communication equipment or communication interface; So according to a normal sign, get final product unique mobile switching centre or Visited Location Registor of determining an operate as normal, according to all normal signs, can determine the mobile switching centre or the Visited Location Registor of all operate as normal in this lane place, and can be according to failure identification, determine the mobile switching centre or the Visited Location Registor that break down, thereby determine in this lane place, other mobile switching centres or Visited Location Registor do not break down, and promptly are in normal operating conditions.
Step 301 is adjusted mobile switching centre or the corresponding IMSI-V thresholding of Visited Location Registor with each operate as normal;
Particularly, according to the alternative weight that presets, the IMSI-V thresholding of the mobile switching centre of breaking down or Visited Location Registor is redistributed mobile switching centre or Visited Location Registor to each operate as normal; Then the mobile switching centre of each operate as normal or the IMSI-V thresholding of Visited Location Registor correspondence are adjusted into IMSI-V thresholding and the original IMSI-V thresholding that distribution obtains;
Step 302, according to the IMSI-V thresholding that adjustment obtains, mobile management net element selects the mobile switching centre of operate as normal or Visited Location Registor to connect in the lane place.
Implement above-mentioned network recovery method, mobile management net element can be recorded in the operating state of the communication equipment in the same position district, or the operating state of the communication interface between mobile management net element and the described communication equipment, and when communication equipment or communication interface break down, in time switch on the communication equipment or communication interface of operate as normal, improved the recovery capability and the reliability of network effectively.
In the embodiment of the invention, SGSN mainly is made up of two flow processs for the MSC/VLR system of selection:
1, the operating state of SGSN active detecting MSC/VLR, particularly, SGSN utilizes the operating state of existing flow process or newly-increased flow process active detecting MSC/VLR, and writes down normal, the malfunction of each MSC/VLR related with it with normal sign or failure identification.
2, SGSN Dynamic Selection MSC/VLR, promptly on original IMSI-V value system of selection basis, in normal sign of MSC/VLR or failure identification according to the SGSN record, dynamically adjust the range of choice of the affiliated IMSI-V value of MSC/VLR of malfunction, only select normal MSC/VLR, do not select the MSC/VLR of fault.
Following present embodiment will describe the process of the operating state of SGSN active detecting MSC/VLR in detail:
Referring to Fig. 4, be the schematic flow sheet of the another embodiment of network recovery method of the present invention, the main flow process of describing the operating state of SGSN active detecting MSC/VLR in the present embodiment.
Present embodiment is to utilize BSSAP+-LOCATION-UPDATE-REQUEST to judge the MSC/VLR state.
Particularly, step 400, SGSN sends BSSAP+-LOCATION-UPDATE-REQUEST message to MSC/VLR;
Need to prove, when the MSC/VLR operating state is normal, the BSSAP+-LOCATION-UPDATE-REQUEST message that SGSN initiates be can in time respond, and BSSAP+-LOCATION-UPDATE-ACCEPT message or BSSAP+-LOCATION-UPDATE-REJECT message replied to SGSN.
If MSC/VLR operating state fault can't respond the request message of SGSN so in duration that presets or number of times, in the present embodiment, preset duration or number of times and realize by the T6-1 timer in the SGSN.
Then in step 401, SGSN utilizes whether operate as normal of the cumulative number of T6-1 timer expiry or operating state that the accumulative total duration is judged MSC/VLR.
Step 402, SGSN receives the message of any BSSAP+ layer from this MSC/VLR, then cumulative number or the accumulative total duration with the T6-1 timer expiry resets.
Step 403, if the cumulative number of T6-1 timer expiry surpasses the times N umGs of SGSN configuration, perhaps the accumulative total duration of response timeout surpasses the duration TimeGs of SGSN configuration, SGSN just judges that the operating state of this MSC/VLR is for breaking down so.
Step 403, after SGSN judged that the operating state of certain MSC/VLR is fault, if SGSN receives the message of any BSSAP+ layer from this MSC/VLR, will to recover the state of this MSC/VLR be operate as normal to SGSN so.
Implement above-mentioned network recovery method, mobile management net element is by sending existing BSSAP+-LOCATION-UPDATE-REQUEST message to communication equipment in the same position district or communication interface, detect the operating state of communication equipment or communication interface, and the operating state of record communication equipment, or the operating state of the communication interface between mobile management net element and the described communication equipment, when communication equipment or communication interface break down, in time switch on the communication equipment or communication interface of operate as normal, improved the recovery capability and the reliability of network effectively.
Referring to Fig. 5, be the schematic flow sheet of the another embodiment of network recovery method of the present invention, the main another flow process of describing the operating state of SGSN active detecting MSC/VLR in the present embodiment.
State detection message BSSAP+-STATUS-TEST between newly-increased SGSN of present embodiment and the MSC/VLR, and detect the operating state of MSC/VLR according in duration that presets or number of times, whether receiving state detection acknowledge message BSSAP+-STATUS-TEST-ACK.Duration that presets in the present embodiment or number of times are by timer T GsRealize.
Particularly, in step 500, SGSN periodically initiates state detection message BSSAP+-STATUS-TEST to its related MSC/VLR, and starts timer T Gs
Step 501, after the normal MSC/VLR of operating state received this test post, recoil state was surveyed acknowledge message BSSAP+-STATUS-TEST-ACK.
Step 502, after SGSN received the state detection acknowledge message, TGs resetted with timer.
The BSSAP+-STATUS-TEST message content
Cell (Information Element) Essential/optional attribute (Presence) Form (Format) Length (Length)
Type of message (Message type) M V 1
VLR number (VLR number) M TLV 5-11
SGSN number (SGSN number) M TLV 5-11
The BSSAP+-STATUS-TEST-ACK message content
Cell (Information Element) Essential/optional attribute (Presence) Form (Format) Length (Length)
Type of message (Message type) M V 1
VLR number (VLR number) M TLV 5-11
SGSN number (SGSN number) M TLV 5-11
If step 503 is the timer T of SGSN GsExpired times surpass the times N of system configuration Gs, SGSN just judges this MSC/VLR status fault so.
During the MSC/VLR status fault, SGSN is the transmit status probe message of hold period still.In case receive the state detection acknowledge message BSSAP+-STATUS-TEST-ACK of MSC/VLR, SGSN just judges that the recovering state of this MSC/VLR is normal.
As the MSC/VLR that is associated with SGSN all operate as normal the time, SGSN still selects VLR according to original IMSI-V value static configuration.
Implement above-mentioned network recovery method, mobile management net element is by sending newly-increased state detection message to communication equipment in the same position district or communication interface, detect the operating state of communication equipment or communication interface, and the operating state of record communication equipment, or the operating state of the communication interface between mobile management net element and the described communication equipment, when communication equipment or communication interface break down, in time switch on the communication equipment or communication interface of operate as normal, improved the recovery capability and the reliability of network effectively.
Fig. 6 is the structural representation of network recovery system embodiment among the present invention.
The network recovery system that present embodiment provides comprises: be arranged in mobile management net element 1 and at MSC/VLR20, the MSC/VLR21......MSC/VLR2n in same position district or the like; Wherein n is a natural number.
Described mobile management net element 1 is used for determining the operating state at same position district MSC/VLR20, MSC/VLR21......MSC/VLR2n, and writes down the work state information of MSC/VLR20, MSC/VLR21......MSC/VLR2n in this lane place; In the time of the mobile management net element specific implementation, can be SGSN or MME (Mobility Management Entity, mobile management entity).
The MSC/VLR that communicates by letter with mobile management net element 1 (MSC/VLR21 as shown in Figure 6) break down or and MSC/VLR21 between communication interface when breaking down, mobile management net element 1 is according to the work state information of its record, in this lane place, select operate as normal MSC/VLR (for example MSC/VLR20, MSC/VLR22......MSC/VLR2n), or the communication interface of operate as normal communicates.
Implement above-mentioned network recovery system, mobile management net element initiatively is recorded in the operating state of the communication equipment in the same position district, or and described communication equipment between the operating state of communication interface; Described communication equipment is mobile switching centre or Visited Location Registor, and when breaking down with communication equipment of communicating by letter or communication interface, in time be connected on the communication equipment or communication interface of operate as normal, improved the recovery capability and the reliability of network effectively.
The MSC/VLR operating state fault that certain if (a plurality of) are related, and other MSC/VLR is operate as normal still, SGSN is according to the operating state of MSC/VLR so, the IMSI-V value that can adjust fault MSC/VLR correspondence dynamically is to normal MSC/VLR, the ratio of adjusting can be distributed according to the weight of subscribing, under the default situation according to the uniform distribution of normal MSC/VLR number.
Under the Iu-Flex networking scenario, 4 MSC/VLR are arranged in the CS Pool district, there are the interface conjunctionn relation in SGSN and this four MSC/VLR, also comprise 4 RAN Node in this system, and the ground, lane place under these 4 RAN Node is under the jurisdiction of a plurality of MSC/VLR.When supposing that 4 MSC/VLR states are all normal in the CS Pool district, the IMSI-V value on the SGSN is allocated as follows:
Figure A200810219259D00151
When the state of MSC/VLR-1 becomes fault, it is as follows that SGSN will adjust the IMSI-V value method of salary distribution automatically, the normal MSC/VLR-2 of state, MSC/VLR-3, MSC/VLR-4 will newly obtain the IMSI-V value of MSC/VLR-1, redistribute the IMSI-V value of fault MSC/VLR-1 according to the ratio of " the alternative weight of MSC/VLR ":
CS Pool district MSC/VLR The MSC/VLR operating state IMSI-V value on the related SGSN is distributed The alternative weight of MSC/VL R The newly-increased IMSI-V value of distributing
MSC/VLR-1 Fault 0～V 1 W 1
MSC/VLR-2 Normally V 1+1～V 2 W 2 0～ V 1*W 2/(W 2+W 3+W 4)-1
MSC/VLR-3 Normally V 2+1～V 3 W3 V 1*W 2/(W 2+W 3+W 4) ～ V 1*(W 2+W 3)/(W 2+W 3+W 4)-1
MSC/VLR-4 Normally V 3+1～999 W 4 V 1*(W 2+W 3)/(W 2+W 3+W 4) ～V 1
At this moment, the IMSI-V on the associated SGSN of the normal MSC/VLR of state comprises two parts: 1, the IMSI-V value of the original configuration of SGSN; 2, newly-increased IMSI-V value of distributing.IMSI-V value scope as MSC/VLR-2 is V 1+ 1～V 2With 0～V 1* W 2/ (W 2+ W 3+ W 4)-1.
Fault has appearred in 2 MSC/VLR in CS Pool, fault occurred as MSC/VLR-1 and MSC/VLR-3, and will to adjust the IMSI-V value method of salary distribution automatically as follows for SGSN so:
CS Pool district MSC/VLR MSC/V LR operating state IMSI-V value on the related SGSN is distributed The alternative weight of MSC/VLR The newly-increased IMSI-V value of distributing
MSC/VLR-1 Fault 0～V 1 W 1
MSC/VLR-2 Normally V 1+1～V 2 W 2 0～V 1*W 2/(W 2+W 4)-1， V 2+1～ V 2+(V 3-V 2)*W 2/(W 2+W 4)
MSC/VLR-3 Fault V 2+1～V 3 W 3
MSC/VLR-4 Normally V 3+1～999 W 4 V 1*W 2/(W 2+W 4)～ V 1， V 2+(V 3-V 2)*W 2/(W 2+W 4)+1～V 3
The IMSI-V value scope of MSC/VLR-2 is: V 1+ 1～V 2, 0～V 1* W 2/ (W 2+ W 4)-1 and V 2+ 1～V 2+ (V 3-V 2) * W 2/ (W 2+ W 4)
In addition, the setting of " the alternative weight of MSC/VLR " value can be calculated according to the user capacity of each MSC/VLR.
The network recovery system that provides with the embodiment of the invention realizes the process of mobile management net element selection MSC/VLR below, illustrates that the structure of the network recovery system that the embodiment of the invention provides is formed and function.
Referring to Fig. 7, be the structural representation of the another embodiment of network recovery system among the present invention.
As shown in Figure 7, suppose under the Iu-Flex networking scenario that 4 MSC/VLR are arranged in the CS Pool district, there are the Gs interface incidence relation in SGSN and this 4 MSC/VLR.
All operate as normal the time, the MSi of different IMS I-V value can be registered on 4 different MSC/VLR-1 through SGSN for 4 MSC/VLR.IMSI-V value relations of distribution configuration on the SGSN is as follows:
CS Pool district MSC MSC/VLR operating state (Gs interface operating state) IMSI-V on the related SGSN distributes The alternative weight of MSC/VLR
MSC/VLR-1 Normally 0～200 20
MSC/VLR-2 Normally 201～500 30
MSC/VLR-3 Normally 501～800 30
MSC/VLR-4 Normally 801～999 20
Scene 1: when MSC/VLR-1 broke down, the BSSAP+-LOCATION-UPDATE-REQUEST message that the last a plurality of MS of SGSN initiate mail to after the MSC/VLR-1, does not receive response message.When the cumulative number of the T6-1 timer expiry on the SGSN surpassed NumGs, SGSN judged the status fault of MSC/VLR-1, and the IMSI-V value that automatic dynamic is adjusted on the SGSN is as follows:
CS Pool district MSC The MSC/VLR operating state IMSI-V on the related SGSN distributes MSC/VLR selects weight The newly-increased IMSI-V value of distributing
MSC/VLR -1 Fault 20
MSC/VLR -2 Normally 201～500 30 0～74
MSC/VLR -3 Normally 501～800 30 75～149
MSC/VLR -4 Normally 801～999 20 150～200
Follow-up MSj is when initiating combined process flow, and SGSN will reselect the normal MSC/VLR of state.
Referring to Fig. 7 a, SGSN is MS 1Choose the MSC/VLR-2 of normal operating conditions;
Referring to Fig. 7 b, SGSN is MS 2Choose the MSC/VLR-3 of normal operating conditions;
Referring to Fig. 7 c, SGSN is MS 3Choose the MSC/VLR-4 of normal operating conditions.
Scene 2: when MSC/VLR-1 broke down, the BSSAP+-LOCATION-UPDATE-REQUEST message that the last a plurality of MS of SGSN initiate mail to after the MSC/VLR-1, does not receive response message.The accumulative total duration of the T6-1 timer expiry on SGSN surpasses Time GsThe time, SGSN judges the status fault of MSC/VLR-1.The processing of follow-up SGSN repeats no more with scene 1.
Scene 3: when MSC/VLR-1 broke down, the state detection message BSSAP+-STATUS-TEST message that SGSN periodically initiates mail to after the MSC/VLR-1, surpassed N GsThe inferior state detection acknowledge message of not receiving, SGSN judges the status fault of MSC/VLR-1.The processing of follow-up SGSN repeats no more with scene 1.
Scene 4: when MSC/VLR-1 and MSC/VLR-3 broke down simultaneously, the BSSAP+-LOCATION-UPDATE-REQUEST message that the last a plurality of MS of SGSN initiate mail to after MSC/VLR-1, the MSC/VLR-3, does not receive response message.The cumulative number of the T6-1 timer expiry on SGSN surpasses Num GsThe time, SGSN judges the status fault of MSC/VLR-1, MSC/VLR-3, and the IMSI-V value that automatic dynamic is adjusted on the SGSN is as follows:
CS Pool district MSC The MSC/VLR operating state Related SGSN goes up the IMSI-V value of distributing MSC/VLR selects weight The newly-increased IMSI-V value of distributing
MSC/VLR -1 Fault 20
MSC/VLR -2 Normally 201～500 30 0～119， 501～680
MSC/VLR -3 Fault 30
MSC/VLR -4 Normally 801～999 20 120～200， 681～800
Follow-up MS jWhen initiating combined process flow, SGSN will reselect the normal MSC/VLR of state.
Referring to Fig. 7 d, SGSN is MS 1Choose the MSC/VLR-2 of normal operating conditions;
Referring to Fig. 7 e, SGSN is MS 3Choose the MSC/VLR-4 of normal operating conditions;
Scene 5: when MSC/VLR-1 and MSC/VLR-3 broke down simultaneously, the BSSAP+-LOCATION-UPDATE-REQUEST message that the last a plurality of MS of SGSN initiate mail to after MSC/VLR-1, the MSC/VLR-3, does not receive response message.The accumulative total duration of the T6-1 timer expiry on SGSN surpasses Time GsThe time, SGSN judges the status fault of MSC/VLR-1, MSC/VLR-3.The processing of follow-up SGSN repeats no more with scene 4.
Scene 6: when MSC/VLR-1 and MSC/VLR-3 broke down simultaneously, the state detection message BSSAP+-STATUS-TEST message that SGSN periodically initiates mail to after MSC/VLR-1, the MSC/VLR-3, surpassed N GsThe inferior state detection acknowledge message of not receiving, SGSN judges the status fault of MSC/VLR-1, MSC/VLR-3.The processing of follow-up SGSN repeats no more with scene 4.
Implement above-mentioned network recovery system, mobile management net element initiatively is recorded in the operating state of the communication equipment in the same position district, or and described communication equipment between the operating state of communication interface; Described communication equipment is mobile switching centre or Visited Location Registor, and when breaking down with communication equipment of communicating by letter or communication interface, the communication equipment or the IMSI-V value on the communication interface that break down are assigned on the communication equipment or communication interface of operate as normal, select the communication equipment or the communication interface of operate as normal to communicate thereby in time starve, improved the recovery capability and the reliability of network effectively.
Referring to Fig. 8, be the structural representation of mobile management net element embodiment among the present invention.
Mobile management net element in the present embodiment comprises:
Determination module 10 is used for determining the operating state at the communication equipment in same position district, or and described communication equipment between the operating state of communication interface; Described communication equipment is mobile switching centre or Visited Location Registor;
Logging modle 11 is used for writing down the communication equipment in described same position district or the work state information of communication interface;
Communication module 12, when the communication equipment of communicating by letter with mobile management net element or communication interface break down, mobile management net element selects the communication equipment or the communication interface of operate as normal to communicate in described lane place according to the communication equipment of described record or the work state information of communication interface.
Need to prove that above-mentioned communication equipment is specially: mobile switching centre or Visited Location Registor.
Above-mentioned mobile management net element can active detecting be arranged in the mobile switching centre in same position district or the operating state of Visited Location Registor, or and MSC/VLR between the operating state of communication interface, and when connected MSC/VLR or communication interface break down, in time switch on the MSC/VLR of operate as normal or the communication interface and communicate, improved the recovery capability and the reliability of network effectively.
The mobile management net element that provides with the embodiment of the invention is selected the process of MSC/VLR below, illustrates that the structure of the mobile management net element that the embodiment of the invention provides is formed and function.
Fig. 9 is the structural representation of the another embodiment of mobile management net element among the present invention.
Present embodiment is described the composition and the function of determination module 10 emphatically based on mobile management net element shown in Figure 8, and determination module 10 specifically comprises:
Detect-message transmitting element 100 is used for each mobile switching centre or Visited Location Registor transmit status detect-message to the same position district; This state-detection message is the existing request message of mobile management net element to mobile switching centre or Visited Location Registor transmission, for example BSSAP+-LOCATION-UPDATE-REQUEST message; Or newly-increased state detection message, for example BSSAP+-STATUS-TEST-TEST message or the like.
Response message receiving element 101 is used to receive the response message that each mobile switching centre or Visited Location Registor return; Need to prove, if mobile switching centre or Visited Location Registor operating state are normal, then can in time respond the state-detection message that mobile management net element sends, for example: mobile management net element is when mobile switching centre or Visited Location Registor transmission BSSAP+-LOCATION-UPDATE-REQUEST message, mobile switching centre or Visited Location Registor operate as normal then can in time be returned response messages such as BSSAP+-LOCATION-UPDATE-ACCEPT or BSSAP+-LOCATION-UPDATE-REJECT to mobile management net element; If mobile management net element is when mobile switching centre or Visited Location Registor transmission BSSAP+-STATUS-TEST message, mobile switching centre or Visited Location Registor operate as normal then can in time be returned the BSSAP+-STATUS-TEST-ACK response message to mobile management net element.
Operating state determining unit 102, if in duration that presets or number of times, response message receiving element 101 receives the response message to state-detection message, then judges mobile switching centre or the Visited Location Registor operate as normal that sends this response message;
If in duration that presets or number of times, response message receiving element 101 does not receive the response message to described state-detection message, judges that then the mobile switching centre or the Visited Location Registor that receive this state-detection message break down.
Need to prove, describedly preset duration or number of times can be realized by timer.
Above-mentioned mobile management net element is by to the MSC/VLR/ communication interface transmit status detect-message that is arranged in the same position district, according to MSC/VLRDE operating state to the energy active detecting of this state-detection message, or and MSC/VLR between the operating state of communication interface, and when connected MSC/VLR or communication interface break down, in time switch on the MSC/VLR of operate as normal or the communication interface and communicate, improved the recovery capability and the reliability of network effectively.
Figure 10 is the structural representation of the another embodiment of mobile management net element among the present invention.
Present embodiment is described the composition and the function of logging modle 11 and communication module 12 emphatically based on mobile management net element shown in Figure 8,
Described logging modle 11 comprises:
Normal identify unit 110, with the communication equipment of the described operate as normal of normal identification record or the work state information of communication interface, described normal sign is corresponding one by one with communication equipment or communication interface;
Failure identification unit 111, with the work state information of failure identification described communication equipment that breaks down of record or communication interface, described failure identification is corresponding one by one with communication equipment or communication interface.
Described communication module 12 specifically comprises:
Determining unit 120 has been used for according to mobile management the work state information of the logging modle record of network element, determines the mobile switching centre or the Visited Location Registor of operate as normal; Particularly,, get final product unique mobile switching centre or Visited Location Registor of determining an operate as normal,, can determine the mobile switching centre or the Visited Location Registor of all operate as normal in this lane place according to all normal signs according to a normal sign.
Adjustment unit 121 is used to adjust mobile switching centre or the corresponding IMSI-V thresholding of Visited Location Registor with each operate as normal;
Communication unit 121 is used for the IMSI-V thresholding that obtains according to adjustment, selects the mobile switching centre or the Visited Location Registor of operate as normal to connect in the lane place.It is prior art that linkage unit 121 is selected the process of mobile switching centre or Visited Location Registor according to IMSI-V, repeats no more.
Optionally, above-mentioned adjustment unit 121 comprises in concrete enforcement:
Distribute subelement 1210, be used for, the IMSI-V thresholding of the mobile switching centre of breaking down or Visited Location Registor is redistributed mobile switching centre or Visited Location Registor to each operate as normal according to the alternative weight that presets;
Adjust subelement 1211, be used for the mobile switching centre of each operate as normal or the IMSI-V thresholding of Visited Location Registor correspondence are adjusted into IMSI-V thresholding and the original IMSI-V thresholding that distribution obtains.
Above-mentioned mobile management net element is by to the MSC/VLR/ communication interface transmit status detect-message that is arranged in the same position district, according to MSC/VLRDE operating state to the energy active detecting of this state-detection message, or and MSC/VLR between communication interface operating state and normally identify and failure identification comes record with corresponding, and when connected MSC/VLR or communication interface break down, IMSI-V value on the MSC/VLR/ communication interface that breaks down can be adjusted on the MSC/VLR/ communication interface of operate as normal, communicate thereby can in time switch on the MSC/VLR of operate as normal or the communication interface, improved the recovery capability and the reliability of network effectively.
Implement above-mentioned network recovery method, system and mobile management net element, be arranged in the mobile switching centre in same position district or the operating state of Visited Location Registor by the mobile management net element active detecting, perhaps detect and MSC/VLR between the operating state of communication interface (for example Gs interface), and when the mobile switching centre that communicates with or Visited Location Registor or corresponding communication interface break down, in time switch in the mobile switching centre or Visited Location Registor or communication interface of operate as normal, improved the recovery capability and the reliability of network effectively.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement by hardware.Based on such understanding, all or part of can the embodying that technical scheme of the present invention contributes to background technology with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.

Claims (14)

1, a kind of network recovery method is characterized in that, comprising:
Determine the operating state of the communication equipment in the same position district, or and described communication equipment between the operating state of communication interface; Described communication equipment is mobile switching centre or Visited Location Registor;
Write down the communication equipment in the described same position district or the work state information of communication interface;
When the communication equipment of communicating by letter with mobile management net element or communication interface break down,, in described lane place, select the communication equipment or the communication interface of operate as normal to communicate according to the communication equipment of described record or the work state information of communication interface.
2, network recovery method as claimed in claim 1 is characterized in that, determines the operating state of the communication equipment in the same position district, or and described communication equipment between the operating state of communication interface, comprising:
To each communication equipment in the same position district or communication interface transmit status detect-message;
If in duration that presets or number of times, receive response message to described state-detection message, then judge communication equipment or the communication interface operate as normal that sends this response message;
If in duration that presets or number of times, do not receive response message to described state-detection message, judge that then the communication equipment or the communication interface that receive this state-detection message break down.
3, network recovery method as claimed in claim 2 is characterized in that, described state-detection message is to communication equipment or the existing request message of communication interface transmission or newly-increased state detection message.
4, as the described network recovery method of claim 1-3, it is characterized in that, write down the communication equipment in the described same position district or the work state information of communication interface, comprising:
With the communication equipment of the described operate as normal of normal identification record or the work state information of communication interface, described normal sign is corresponding one by one with communication equipment or communication interface;
With the work state information of failure identification described communication equipment that breaks down of record or communication interface, described failure identification is corresponding one by one with communication equipment or communication interface.
5, network recovery method as claimed in claim 4 is characterized in that, according to the communication equipment of described record or the work state information of communication interface, selects the communication equipment or the communication interface of operate as normal to communicate in described lane place, comprising:
According to described normal sign or failure identification, determine the communication equipment or the communication interface of operate as normal;
Adjust communication equipment or the corresponding IMSI-V thresholding of communication interface with each operate as normal;
According to the IMSI-V thresholding that described adjustment obtains, in described lane place, select the communication equipment or the communication interface of operate as normal to connect.
6, network recovery method as claimed in claim 5 is characterized in that, the communication equipment or the corresponding IMSI-V value of communication interface of described adjustment and each operate as normal comprise:
According to the alternative weight that presets, the IMSI-V thresholding of the communication equipment that breaks down or communication interface is redistributed communication equipment or communication interface to each operate as normal;
The communication equipment of described each operate as normal or the IMSI-V thresholding of communication interface correspondence are adjusted into IMSI-V thresholding and the original IMSI-V thresholding that distribution obtains.
7, a kind of mobile management net element is characterized in that, comprising:
Determination module is used for determining the operating state at the communication equipment in same position district, or and described communication equipment between the operating state of communication interface;
Logging modle is used for writing down the communication equipment in described same position district or the work state information of communication interface;
Communication module, when the communication equipment of communicating by letter with mobile management net element or communication interface break down, mobile management net element selects the communication equipment or the communication interface of operate as normal to communicate in described lane place according to the communication equipment of described record or the work state information of communication interface.
8, mobile management net element as claimed in claim 7 is characterized in that, described determination module comprises:
The detect-message transmitting element is used for each communication equipment or the communication interface transmit status detect-message of described lane place;
The response message receiving element is used to receive the response message that each communication equipment or communication interface are returned;
The operating state determining unit, if in duration that presets or number of times, described response message receiving element receives the response message to described state-detection message, then judges communication equipment or the communication interface operate as normal that sends this response message;
If in duration that presets or number of times, described response message receiving element does not receive the response message to described state-detection message, judges that then the communication equipment or the communication interface that receive this state-detection message break down.
9, mobile management net element as claimed in claim 8 or 9 is characterized in that described logging modle comprises:
Normal identify unit, with the communication equipment of the described operate as normal of normal identification record or the work state information of communication interface, described normal sign is corresponding one by one with communication equipment or communication interface;
The failure identification unit, with the work state information of failure identification described communication equipment that breaks down of record or communication interface, described failure identification is corresponding one by one with communication equipment or communication interface.
10, mobile management net element as claimed in claim 9 is characterized in that, described communication module comprises:
Determining unit is used for determining the communication equipment or the communication interface of operate as normal according to described normal sign or failure identification;
Adjustment unit is used to adjust communication equipment or the corresponding IMSI-V thresholding of communication interface with each operate as normal;
Linkage unit is used for the IMSI-V thresholding that obtains according to described adjustment, selects the communication equipment or the communication interface of operate as normal to communicate in described lane place.
11, mobile management net element as claimed in claim 10 is characterized in that, described adjustment unit comprises:
Distribute subelement, be used for, the IMSI-V thresholding of the communication equipment that breaks down or communication interface is redistributed communication equipment or communication interface to each operate as normal according to the alternative weight that presets;
Adjust subelement, be used for the communication equipment of described each operate as normal or the IMSI-V thresholding of communication interface correspondence are adjusted into IMSI-V thresholding and the original IMSI-V thresholding that distribution obtains.
12, a kind of network recovery system is characterized in that, comprising: mobile management net element and be positioned at the communication equipment in same position district;
Described mobile management net element is used for determining the operating state at the communication equipment in same position district, or and described communication equipment between the operating state of communication interface; Described communication equipment is mobile switching centre or Visited Location Registor;
When the communication equipment that is connected with mobile management net element or communication interface broke down, mobile management net element selected the communication equipment or the communication interface of operate as normal to communicate in described lane place according to the work state information of described record.
13, network recovery as claimed in claim 12 system, it is characterized in that, described mobile management net element is according to the normal sign or the failure identification of its record, after determining the communication equipment or communication interface of operate as normal, adjust communication equipment or the corresponding IMSI-V thresholding of communication interface with each operate as normal; And, in described lane place, select the communication equipment or the communication interface of operate as normal to connect according to the IMSI-V thresholding that described adjustment obtains.
14, as claim 12 or 13 described network recovery systems, it is characterized in that mobile management net element is used for
According to the alternative weight that presets, the IMSI-V thresholding of the communication equipment that breaks down or communication interface is redistributed communication equipment or communication interface to each operate as normal; The communication equipment of described each operate as normal or the IMSI-V thresholding of communication interface correspondence are adjusted into IMSI-V thresholding and the original IMSI-V thresholding that distribution obtains.
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