CN1177444C - Realizing method for enhancing 3G nucleus network reliability using allopatric back-up - Google Patents
Realizing method for enhancing 3G nucleus network reliability using allopatric back-up Download PDFInfo
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- CN1177444C CN1177444C CNB011353805A CN01135380A CN1177444C CN 1177444 C CN1177444 C CN 1177444C CN B011353805 A CNB011353805 A CN B011353805A CN 01135380 A CN01135380 A CN 01135380A CN 1177444 C CN1177444 C CN 1177444C
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Abstract
The present invention relates to a realization method using a home location register to carry out backup in different areas to increase the reliability of a 3G core network under an IP signaling networking environment, which comprises the following steps: a home location register is added in a 3G core network, and an IP address is allocated to the home location register; the home location register is connected to the IP signaling network of the 3G core network through a router, a link used for backing up message transfer is added between two home location registers, and a set of protocol used for backing up message transfer is selected. Because a home location register is skillfully added in the 3G core network and the theoretical distance of the links between the two home location registers and the links between the two home location registers and communication nodes can not be limited in the present invention, distant backup in different areas can be realized by the method, and the problem that users can not carry out services caused by equipment in a disaster condition can be prevented, so that the reliability of the 3G core network can be effectively increased, and the high usability of the users' carrying out services can be fully ensured.
Description
Technical field
The present invention relates to a kind of implementation method that improves radio core network reliability, particularly relate to and a kind ofly under the IP signaling network environment, utilize attaching position register (HLR---Home Location Register) remote backup to improve the implementation method of 3G core network reliability.
Background technology
The effect of attaching position register in the 3G core network (HLR---Home Location Register) mainly is storing user subscription and routing iinformation, miscellaneous equipment in attaching position register (HLR---Home LocationRegister) and the network is undertaken alternately by signaling, 3GPP has proposed 3G core network of future generation---the architecture of 3G technology at present, in new architecture, as shown in Figure 1, signaling is transmitted on IP, in IP network, the different nodes in the marked network are come in use signaling point code and IP address.Therefore, the effect of attaching position register (HLR---Home Location Register) in the 3G core network is extremely important, can cause a large number of users can not carry out business if break down.Attaching position register (HLR---Home Location Register) only relies on the reliability of equipment self to guarantee user's high availability in the existing 3G core network, if run into disaster (for example: earthquake, fire) then can't guarantee user's availability.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide the implementation method that a kind of remote remote backup that utilizes attaching position register under the IP signaling network environment improves the 3G core network reliability, this implementation method may further comprise the steps:
A, in the 3G core network, increase the remote backup equipment that the first attaching position register function can be provided---second attaching position register;
B, give this alternate device---second attaching position register distributes an IP address different with the IP address of first attaching position register;
C, with this alternate device---second attaching position register is online by the IP signaling that router is connected to the 3G core network, and increases by one be used for the link that backup messages is transmitted between two attaching position registers;
D, between two attaching position registers, select a cover to be used for the agreement that backup messages is transmitted;
E, judge whether first attaching position register breaks down, if there is fault to forward the j step to; Otherwise
F, communication node send to first attaching position register with information and are handled by first attaching position register;
G, judge whether two links between the attaching position register damage and second attaching position register fault whether, if forward the i step to, otherwise
H, first attaching position register will wherein relate to the message of user data change and the signaling annexation relevant information of the new account message and first home location register sends to second attaching position register and backs up in realtime process ends by it;
The relevant information that i, first attaching position register can not in time send to second attaching position register backs up, and after the link and second attaching position register recover normally by the time, first attaching position register sends to second attaching position register, process ends with the information of backup;
The IP address that j, second attaching position register are revised as first attaching position register with the IP address of oneself, and take over first attaching position register by second attaching position register and handle, at this moment
The message and the message of opening an account that k, second attaching position register will wherein relate to the user data change back up, and after first attaching position register recovered normally by the time, second attaching position register all sent to first attaching position register with the message of backup.
Judge among the above-mentioned steps e wherein whether fault may further comprise the steps first attaching position register:
E1, second attaching position register send heartbeat message to first attaching position register;
E2, judge whether first attaching position register returns success, if forward step e6 to, otherwise
E3, judge whether repeating transmission number of times that surpass to set, if forward step e5 to, otherwise
E4, will retransmit number of times and add one, lay equal stress on the heartbeat message that sends to first attaching position register, forward step e2 then to;
E5, first attaching position register is set breaks down;
E6, with the retransmission counter zero clearing, first attaching position register is set does not break down, and finish this subtask.
Judge among the above-mentioned steps g wherein whether two links between the attaching position register damage and second attaching position register whether fault may further comprise the steps:
G1, first attaching position register send heartbeat message to second attaching position register;
G2, judge whether second attaching position register returns success; If forward g6 to, otherwise
G3, judge whether repeating transmission number of times that surpass to set, if forward g5 to, otherwise
G4, will retransmit number of times and add one, and resend heartbeat message and give second attaching position register, forward step g 2 then to;
G5, be provided with that two backup chains between the attaching position register damage or the second attaching position register equipment break down;
G6, with the retransmission counter zero clearing, and be provided with two links between the attaching position register normally and the second attaching position register equipment normal.
The agreement that is used for the backup messages transmission among the above-mentioned steps d can have multiple mode, can be 1, utilize existing SCCP (SCCP---Signaling Connection and Control Part) agreement, a kind of backup communication agreement of definition on the basis of SCCP SCCP about the attaching position register applying portion; 2, utilize existing MAP (MAP---Mobile ApplicationPart) agreement, the MAP MAP expanded, with the MAP extended message that increases as the message that is used to back up; If 3 attaching position register internet usage agreements (IP---Internet Private) intercommunication can increase attaching position register applying portion message as the message that is used to back up on Internet protocol IP.
The present invention has the alternate device of identical function owing to add one dexterously in the 3G core network with first attaching position register (HLR---Home Location Register)---second attaching position register (HLR---Home Location Register), (HLR---HomeLocation Register) can be without limits to first attaching position register (HLR---Home Location Register) and the theoretic distance of link of each communication node because second attaching position register, therefore can realize by this method at a distance existing attaching position register (HLR---Home Location Register) being carried out remote backup, prevent since attaching position register (HLR---Home Location Register) equipment in calamitous situation (as earthquake, fire etc.) user who causes under can not carry out professional problem, thereby effectively improve the reliability of 3G core network, guarantee that fully the user carries out professional high availability.
Description of drawings
Describe implementation method of the present invention in detail below in conjunction with accompanying drawing:
Fig. 1 is the networking diagram of attaching position register in the existing 3G core network;
Fig. 2 is the networking diagram of attaching position register in the 3G core network of the present invention;
Fig. 3 is the networking diagram after the first attaching position register fault in the 3G core network of the present invention;
Fig. 4 is the process chart of implementation method of the present invention;
Fig. 5 is the whether troubleshooting process figure of first attaching position register that judges of the present invention;
Fig. 6 of the present inventionly judges whether two links between the attaching position register damage and second attaching position register process chart of fault whether.
Embodiment
As Fig. 2～shown in Figure 5, the implementation method of utilizing remote backup to improve the 3G core network reliability of the present invention may further comprise the steps:
At first, in the 3G core network, increase the remote backup equipment that the first attaching position register HLR1 function can be provided---the second attaching position register HLR2; Promptly in the 3G core network, add one with the first attaching position register HLR1 not in same place but have alternate device---the second attaching position register HLR2 with the first attaching position register HLR1 identical function.And to this alternate device---the second ownership shift register HLR2 distributes an IP address; Promptly distribute to IP address different of the second attaching position register HLR2 with the first attaching position register HLR1.Simultaneously with this alternate device---it is online and communicate with other communication node that the second attaching position register HLR2 is connected to the IP signaling of 3G core network, and increase by one be used for the link that backup messages is transmitted between the first attaching position register HLR1 and the second attaching position register HLR2; Wherein attaching position register has the form of multiple networking in the 3G core network, choosing typical networking mode in this implementation method is radio core network of future generation---the architecture of 3G technology that 3GPP proposes, the principle of attaching position register remote backup is described, in this new architecture, attaching position register carries out the mutual of message by the miscellaneous equipment in signaling and the network.Signaling is transmitted on IP, and in IP network, use signaling point code and IP address to come different nodes in the marked network, under this networking mode, attaching position register communicates by the router pair communication node with other, and the remote backup principle of attaching position register is identical in other networking plan.Wherein, described communication node comprises Signalling Transfer Point (STP---Signaling TransferPoint), mobile switching centre (MSC---Mobile Switch Center), gateway MSC communication nodes such as (Gateway MSC).
Secondly, between two attaching position registers, select a cover to be used for the agreement that backup messages is transmitted;
Being used for two backup messages transmission agreements between the ownership shift register this moment in this step has multiple implementation, and can utilize following several protocol modes, but be not limited to this several protocol modes,
1) if take to utilize the mode of existing SCCP (SCCP) agreement, can utilize the 0 class message of SCCP, encapsulation is used for Backup Data message transmitted and acknowledge message between HLR in N-DATA message.The cell coding of ad-hoc location can be set in N-DATA message, distinguish different type of messages, thereby can carry out different processing according to different message.According to general Naming conventions, the message of this type can be called HLR APPLICATION PART (HLR applying portion).
2), can increase corresponding type of message and application context and identify and be used for Backup Data message transmitted and acknowledge message between HLR if take mode that MAP (MAP) is expanded.Such message can be called the MAP extended message.
3) if take the mode of definition new information on the IP agreement, can utilize TCP or UDP message, encapsulation is used for Backup Data message transmitted and acknowledge message between HLR in message.The cell coding of ad-hoc location can be set in TCP or UDP message, distinguish different type of messages, thereby can carry out different processing according to different message.According to general Naming conventions, the message of this type can be called HLRAPPLICATION PART (HLR applying portion).
Then, judge whether the first attaching position register HLR1 has fault, in this step, judge that whether the first attaching position register HLR1 has fault, comprises the steps:
E1, second attaching position register send heartbeat message to first attaching position register;
E2, judge whether first attaching position register returns success, if forward step e6 to, otherwise
E3, judge whether repeating transmission number of times that surpass to set, if forward step e5 to, otherwise
E4, will retransmit number of times and add one, and resend heartbeat message and give first attaching position register, forward step e2 then to;
E5, first attaching position register is set breaks down;
E6, with the retransmission counter zero clearing, first attaching position register is set does not break down, and finish this subtask.According to above-mentioned judged result,, then forward following step j to if the first attaching position register HLR1 has fault; Otherwise
F, each communication node all sends to the first attaching position register HLR1 with information and is handled by the first attaching position register HLR1, whether the link that determines the second attaching position register HLR2 then normally reaches is judged whether the second attaching position register HLR2 has fault, promptly utilize heartbeat message to judge the accessibility of link between two attaching position registers, the content that this heartbeat message carries can be arbitrarily, it mainly is to send out a message square tube to cross return messages content and the previous content that sends are compared to judge whether link is normal, and the handling process of this heartbeat message comprises the steps:
G1, the first attaching position register HLR1 send heartbeat message to the second attaching position register HLR2;
G2, judge whether to receive receive the response and receive the response whether correct; If do not receive or incorrect, forward step g 4 to, otherwise
G3, retransmit number of times and be set to zero, and Link State is set can uses, promptly link between the two normally and the second attaching position register HLR2 fault-free;
G4, judge whether repeating transmission number of times that surpass to set, if forward step g 6 to, otherwise
G5, repeating transmission number of times add one, and rotate back into step g 2 after resend message;
G6, that Link State is set is unavailable, and promptly undesired the and second attaching position register HLR2 of link between the two has fault, and rotates back into step g 1.
Result according to the judgment processing of above-mentioned steps, if link is normal, the message that the first attaching position register HLR1 will need to back up promptly wherein relates to message that user data changes and the relevant informations such as signaling annexation of the new account message and the first attaching position register HLR1 are preserved, and the message content that will need to back up sends to the second attaching position register HLR2; The first attaching position register HLR1 carries out back-up processing with the message that needs send to the second attaching position register HLR2 if link is undesired, and after waiting until that link is normal, message with all backups sends to the second attaching position register HLR2 again, consistent with the content that guarantees the second attaching position register HLR2 with the content of the first attaching position register HLR1, thus make the second attaching position register HLR2 can when the first attaching position register HLR1 fault, take over its work smoothly.
J, communication node all send to the second attaching position register HLR2 with information, and take over the first attaching position register HLR1 by the second attaching position register HLR2 and handle; In this step, when the second attaching position register HLR2 is found to the first attaching position register HLR1 fault is arranged, the second attaching position register HLR2 is revised as the IP address of oneself the IP address of the first attaching position register HLR1 automatically, wherein the method that the second attaching position register HLR2 is revised as the IP address of the first attaching position register HLR1 with the IP address of oneself in this step should adopt a kind of of following proposal: 1), the first attaching position register HLR1 and the second attaching position register HLR2 are arranged on the same network segment, because if HLR does not contain router feature, the IP address that the second attaching position register HLR2 directly changes the address into the first attaching position register HLR1 can have problems: if the first attaching position register HLR1 and the second attaching position register HLR2 be not on the same network segment, although then the first attaching position register HLR1 works as machine, far the routing iinformation in the routing table can't change, therefore the second attaching position register HLR2 can externally send out the IP bag, but the IP bag that returns the second attaching position register HLR2 still can mail to the physical subnets at the first attaching position register HLR1 place, and can not arrive the second attaching position register HLR2 place physical subnets.2), two attaching position registers itself are set to router, at it during when machine, the periphery routing update message finds that this route is unreachable, and the second attaching position register HLR2 place router will trigger other and close on router and carry out routing update, but this has certain time delay; For not violating the principle of hierarchical routing, require the router of the first attaching position register HLR1, the second attaching position register HLR2 to be positioned at identical higher level's subnet.Signaling annexation and other node that the while second attaching position register HLR2 utilizes the first attaching position register HLR1 to issue it connect, no matter whether the link between itself and the first attaching position register HLR1 normally all should take over its work, and since the second attaching position register HLR2 backed up all user profile of the first attaching position register HLR1 and provide and the first attaching position register HLR1 identical functions, thereby make the business that when bust takes place the first attaching position register HLR1, does not influence the user, improved the reliability of 3G core network.The information that the while second attaching position register HLR2 will wherein relate to user data change and new account again backs up; And after the first attaching position register HLR1 recovers normally by the time, the second attaching position register HLR2 sends to the first attaching position register HLR1 with the message of all backups, both contents are consistent again, guarantee that the first attaching position register HLR1 can normally carry out business after recovery, simultaneously, the first attaching position register HLR1 is after recovering normally, the second attaching position register HLR2 the message of all backups is not sent to the first attaching position register HLR1 during this period of time in, can not take over the second attaching position register HLR2 at once and carry out work to avoid normally to provide professional because of the not quite identical first attaching position register HLR1 that causes of both contents, after promptly having only backup messages transmission by the time to finish, the first attaching position register HLR1 just reverts to original IP address and service is provided, the IP address of second attaching position register HLR2 modification simultaneously oneself is former addresses distributed, promptly returns to the preceding state of the first attaching position register HLR1 fault.
Claims (8)
1, a kind of implementation method of utilizing remote backup to improve the 3G core network reliability is characterized in that may further comprise the steps:
A, in the 3G core network, increase the remote backup equipment that the first attaching position register function can be provided---second attaching position register;
B, give this alternate device---second attaching position register distributes an IP address different with the IP address of first attaching position register;
C, with this alternate device---it is online and communicate with other communication node that second attaching position register is connected to the IP signaling of 3G core network by router, and increase by one be used for the link that backup messages is transmitted between two attaching position registers;
D, between two attaching position registers, select a cover to be used for the agreement that backup messages is transmitted;
E, judge whether first attaching position register breaks down, if there is fault to forward the j step to; Otherwise
F, communication node send to first attaching position register with information and are handled by first attaching position register;
G, judge whether two links between the attaching position register damage and second attaching position register fault whether, if forward the i step to, otherwise
H, first attaching position register will wherein relate to the message of user data change and the signaling annexation relevant information of the new account message and first home location register sends to second attaching position register and backs up in realtime process ends by it;
The relevant information that i, first attaching position register can not in time send to second attaching position register backs up, and after the link and second attaching position register recover normally by the time, first attaching position register sends to second attaching position register, process ends with the information of backup;
The IP address that j, second attaching position register are revised as first attaching position register with the IP address of oneself, and take over the first attaching position register work and the information that receives is handled by second attaching position register, at this moment
Message and new account message that k, second attaching position register will wherein relate to the user data change back up, and after first attaching position register recovered normally by the time, second attaching position register all sent to first attaching position register with the message of backup.
2, implementation method according to claim 1 is characterized in that among the above-mentioned steps a increasing the remote backup equipment that the first attaching position register function can be provided---second attaching position register be in the 3G core network, add one with first attaching position register not in same place but have alternate device with the first attaching position register identical function---second attaching position register.
3, implementation method according to claim 1 is characterized in that the communication node that connects with the IP signaling network chain among the above-mentioned steps c comprises Signalling Transfer Point or mobile switching centre or GMSC (gateway mobile switching center).
4, implementation method according to claim 1 is characterized in that judging among the above-mentioned steps e whether first attaching position register breaks down may further comprise the steps:
E1, second attaching position register send heartbeat message to first attaching position register;
E2, judge whether first attaching position register returns success, if forward step e6 to, otherwise
E3, judge whether repeating transmission number of times that surpass to set, if forward step e5 to, otherwise
E4, will retransmit number of times and add one, and resend heartbeat message and give first attaching position register, forward step e2 then to;
E5, first attaching position register is set breaks down;
E6, with the retransmission counter zero clearing, first attaching position register is set does not break down, and finish this subtask.
5, implementation method according to claim 1, it is characterized in that judging among the above-mentioned steps g whether two links between the attaching position register damage and second attaching position register whether fault may further comprise the steps:
G1, first attaching position register send heartbeat message to second attaching position register;
G2, judge whether second attaching position register returns success; If forward g6 to, otherwise
G3, judge whether repeating transmission number of times that surpass to set, if forward g5 to, otherwise
G4, will retransmit number of times and add one, and resend heartbeat message and give second attaching position register, forward step g 2 then to;
G5, be provided with that two chains between the attaching position register damage or second attaching position registers break down;
G6, with the retransmission counter zero clearing, and be provided with two links between the attaching position register normally and second attaching position register normal.
6, implementation method according to claim 1, the agreement that it is characterized in that being used among the above-mentioned steps d backup messages transmission is to utilize existing SCCP agreement, a kind of backup communication agreement about the attaching position register applying portion of definition on the basis of SCCP agreement.
7, implementation method according to claim 1, the agreement that it is characterized in that being used among the above-mentioned steps d backup messages transmission is to utilize existing MAP agreement, the MAP agreement is expanded, with the MAP extended message that increases as the message that is used to back up.
8, implementation method according to claim 1, it is characterized in that the agreement that is used for the backup messages transmission among the above-mentioned steps d is: if first attaching position register and the second attaching position register internet usage protocol interconnection then increase attaching position register applying portion message as the message that is used to back up in Internet protocol.
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| CNB011353805A CN1177444C (en) | 2001-09-25 | 2001-09-25 | Realizing method for enhancing 3G nucleus network reliability using allopatric back-up |
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| CNB011353805A CN1177444C (en) | 2001-09-25 | 2001-09-25 | Realizing method for enhancing 3G nucleus network reliability using allopatric back-up |
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| CN1177444C true CN1177444C (en) | 2004-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188527B (en) * | 2007-12-24 | 2012-03-14 | 杭州华三通信技术有限公司 | A heartbeat detection method and device |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454955C (en) * | 2003-04-11 | 2009-01-21 | 华为技术有限公司 | Stand-by of IP telephone route and recovery method |
| CN1310481C (en) * | 2003-05-21 | 2007-04-11 | 华为技术有限公司 | Method for realizing application characteristic dual processor backup |
| CN100527881C (en) * | 2004-12-02 | 2009-08-12 | 中兴通讯股份有限公司 | A method for updating user dynamic data in real-time in mobile communication network |
| CN100456701C (en) * | 2006-10-17 | 2009-01-28 | 华为技术有限公司 | Apparatus and method for improving reliability of communication system and communication system thereof |
-
2001
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101188527B (en) * | 2007-12-24 | 2012-03-14 | 杭州华三通信技术有限公司 | A heartbeat detection method and device |
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| CN1411219A (en) | 2003-04-16 |
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