CN105530622A - Method and system for updating X2 address - Google Patents
Method and system for updating X2 address Download PDFInfo
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- CN105530622A CN105530622A CN201410563681.2A CN201410563681A CN105530622A CN 105530622 A CN105530622 A CN 105530622A CN 201410563681 A CN201410563681 A CN 201410563681A CN 105530622 A CN105530622 A CN 105530622A
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- base station
- address
- source base
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/16—Interfaces between hierarchically similar devices
- H04W92/20—Interfaces between hierarchically similar devices between access points
Abstract
The invention discloses a method and a system for updating an X2 address. The method comprises the steps that when the X2 address of a source base station changes, an updating message is sent to a target base station; and the target base station obtains the X2 address of the source base station according to the updating message to update the X2 address, and establishes an X2 communication link via the updated X2 address. According to the method disclosed by the invention, the source base station sends the updating message to the target base station, and the target base station obtains the X2 address of the source base station according to the updating message to update the X2 address, so the problem that the existing LTE36.413 protocol does not describe when the X2 address of the source base station changes, how to notify the target base station, resulting in interruption of the X2 communication link of the target base station and the source base station, is solved; and the source base station and the target base station re-establish the X2 communication link in time, so related functions depending on the X2 communication link are guaranteed.
Description
Technical field
The application relates to wireless access technology, espespecially a kind of method and device realizing the renewal of X2 address.
Background technology
The agreement 36.413 of 3GPP defines the acquisition message of X2 address, solution is provided like this: source base station is as set up X2 communication link with target BS for the transmission of self-organizing network (SON) X2 is set up automatically, then sent a request message by the link between core net, message is transparent transmission between core net, and be transmitted to target BS, target BS returns the X2 transport addresses information of oneself by response message, and the follow-up X2 communication link setting up two base stations.This method in the X2 address of configuration opposite end, two base stations, is very easy to later maintenance work without the need to manual.
But there is drawback in current agreement, in the protocol and undefined X2 address occur change message and stream flow process, and in actual application environment, due to the change of network topology structure, there is the possibility changed in X2 address, once the X2 address of base station is changed, the other end causing communicating with cannot be known its change occurred, or still use original X2 address to communicate, cause the X2 communication link between two base stations cannot set up for a long time.If adopt the base station of artificial communication to reconfigure the mode of X2 communication link, although the communication of two base stations can be recovered, inefficiency, configure and be not easy to implement.
Summary of the invention
In order to solve the problem, the invention provides a kind of method and system realizing X2 address and upgrade, when X2 address changes, can realize reconfiguring of X2 communication link by base station self, realize X2 communication link and connect, efficiency improves, and exploitativeness is strong.
In order to reach object of the present invention, the application provides a kind of method realizing X2 address and upgrade; Comprise:
When the X2 address of source base station occurs to change, send updating message to target BS;
Target BS according to the X2 address of lastest imformation acquisition source base station, to upgrade, and sets up X2 communication link with the X2 address upgraded.
Further, target BS specifically comprises according to lastest imformation acquisition source base station X2 address:
Target BS, according to described lastest imformation, sends the request message obtaining X2 address to source base station;
Source base station contains the feedback information of the X2 address of source base station to target BS feedback packet according to request message;
Target BS obtains the X2 address of source base station according to feedback information.
Further, when the X2 address of source base station occurs to change, send updating message to target BS and specifically comprise:
Source base station sends the updating message of the base station eNB transformat of X2 address change to mobile management entity MME;
The updating message that the updating message of eNB transformat is converted to MME transformat is sent to target BS by MME.
Further, the feedback information that source base station contains source base station X2 address according to request message to target BS feedback packet specifically comprises:
Source base station contains the feedback information of source base station X2 address to target BS feedback packet through MME according to request message.
Further, when source base station judges the generation chain rupture of X2 communication link, the method also comprises:
Source base station opens the protection timer of an X2 communication link; when protecting timer to expire; send and obtain the request message of X2 address to target BS, with according to target BS, request message feed back, the feedback information of the X2 address that includes target BS renewal sets up X2 communication link.
Further, when target BS judges the generation chain rupture of X2 communication link, the method also comprises:
Target BS opens the protection timer of an X2 communication link; when protecting timer to expire; transmission obtains the request message of X2 address to source base station, to set up X2 communication link according to source base station to the feedback information including the X2 address that source base station upgrades that request message feeds back.
On the other hand, the application also provides a kind of system realizing X2 address and upgrade, and comprising: source base station and object base station; Wherein,
Source base station, during for occurring in X2 address to change, sends updating message to target BS;
Target BS, for the X2 address according to lastest imformation acquisition source base station, to upgrade, and sets up X2 communication link with the X2 address upgraded.
Further, source base station specifically for, X2 address occur change time, to target BS send updating message; Contain the feedback information of source base station X2 address to target BS feedback packet according to request message;
Target BS specifically for, when receiving updating message, send to source base station and obtain the request message of X2 address; According to the feedback information that source base station sends, the X2 address of source base station is upgraded, and set up communication link with the X2 address upgraded.
Further, this system also comprises mobile management entity (MME);
Source base station specifically for, when occurring in X2 address to change, send the updating message of the base station eNB transformat of X2 address change to mobile management entity MME;
MME is used for, and the updating message that the updating message of eNB transformat is converted to MME transformat is sent to target BS.
Further, this system also comprises mobile management entity MME;
Source base station specifically for, X2 address occur change time, to target BS send updating message; Contain the feedback information of source base station X2 address to target BS feedback packet according to request message; Source base station contains the feedback information of source base station X2 address to target BS feedback packet through MME according to request message;
MME is used for, and the feedback information that receiving package contains source base station X2 address sends to target BS.
Further, source base station also for, when judging the generation chain rupture of X2 communication link, open the protection timer of an X2 communication link, when protecting timer to expire, transmission obtains the request message of X2 address to target BS, to set up X2 communication link according to target BS to the feedback information including the X2 address that target BS upgrades that request message feeds back;
Target BS also for; when judging the generation chain rupture of X2 communication link; open the protection timer of an X2 communication link; when protecting timer to expire; transmission obtains the request message of X2 address to source base station, to set up X2 communication link according to source base station to the feedback information including the X2 address that source base station upgrades that request message feeds back.
Compared with prior art, technical scheme provided by the invention, comprising: when the X2 address of source base station occurs to change, send updating message to target BS; Target BS according to the X2 address of lastest imformation acquisition source base station, to upgrade, and sets up X2 communication link with the X2 address upgraded.The present invention sends updating message, target BS according to the X2 address of lastest imformation acquisition source base station, to upgrade by source base station to target BS, solving current LTE36.413 agreement does not describe when X2 address change occurs source base station, how notification target base station, causes target BS and source base station to occur the problem of X2 interrupted communication link; Make source base station and target BS re-establish X2 communication link in time, the function of relevant dependence X2 communication link obtains guarantee.
Accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to technical scheme, and forms a part for specification, is used from the technical scheme explaining the application, does not form the restriction to technical scheme with the embodiment one of the application.
Fig. 1 is the flow chart that the present invention realizes the method that X2 address upgrades;
Fig. 2 is the structured flowchart that the present invention realizes the system that X2 address upgrades.
Embodiment
For making the object of the application, technical scheme and advantage clearly understand, hereinafter will by reference to the accompanying drawings the embodiment of the application be described in detail.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
Fig. 1 is the flow chart that the present invention realizes the method that X2 address upgrades, and as shown in Figure 1, comprising:
When the X2 address of step 100, source base station occurs to change, send updating message to target BS.Specifically comprise:
Source base station sends the updating message of base station (eNB) transformat of X2 address change to mobile management entity (MME);
The updating message that the updating message of eNB transformat is converted to MME transformat is sent to target BS by MME.
Step 102, target BS according to the X2 address of lastest imformation acquisition source base station, to upgrade, and set up X2 communication link with the X2 address upgraded.
In this step, the X2 address that target BS obtains source base station according to lastest imformation specifically comprises:
Target BS, according to described lastest imformation, sends the request message obtaining X2 address to source base station;
It should be noted that, send to source base station the request message obtaining X2 address also to need through MME, message is generally eNBCONFIGURATIONTRANSFER, X2 address changes, can't cause the link generation problem of two base stations and MME, have target BS ID inside eNBCONFIGURATIONTRANSFER message, MME can forward.
Source base station contains the feedback information of the X2 address of source base station to target BS feedback packet according to request message; Here, specifically comprise: source base station contains the feedback information of source base station X2 address to target BS feedback packet through MME according to request message.
Target BS obtains the X2 address of source base station according to feedback information.
It should be noted that, the present invention just carries the X2 address of source base station when why no longer sending updating message, be the message in order to the existing agreement of compatibility and flow process, reduce the amendment to agreement, when solving the problem that X2 address upgrades, reduce the impact on existing protocol.
When source base station judges the generation chain rupture of X2 communication link, the inventive method also comprises:
Source base station opens the protection timer of an X2 communication link; when protecting timer to expire; send and obtain the request message of X2 address to target BS, with according to target BS, request message feed back, the feedback information of the X2 address that includes target BS renewal sets up X2 communication link.
When target BS judges the generation chain rupture of X2 communication link, the inventive method also comprises:
Target BS opens the protection timer of an X2 communication link; when protecting timer to expire; transmission obtains the request message of X2 address to source base station, to set up X2 communication link according to source base station to the feedback information including the X2 address that source base station upgrades that request message feeds back.
It should be noted that; source base station and target BS are a relative concept; the base station that the renewal of X2 address occurs can define as source base station; when there is X2 interrupted communication link; source base station and target BS all can open the protection timer of X2 communication link, and both can work simultaneously.
It should be noted that, lastest imformation is sent to target BS by source base station, know that to make target BS the chain rupture of X2 communication link is caused by X2 address change, and then send a request message, obtain the X2 address upgraded, according to the renewal of target BS to source base station X2 address, realize reconnecting of communication link.
The present invention sends updating message, target BS according to the X2 address of lastest imformation acquisition source base station, to upgrade by source base station to target BS, solving current LTE36.413 agreement does not describe when X2 address change occurs source base station, how notification target base station, causes target BS and source base station to occur the problem of X2 interrupted communication link; Enable source base station and target BS re-establish X2 communication link in time, the function of relevant dependence X2 communication link can be protected.
Fig. 2 is the structured flowchart that the present invention realizes the system that X2 address upgrades, and as shown in Figure 2, comprising: source base station and object base station; Wherein,
Source base station and object base station; Wherein,
Source base station, during for occurring in X2 address to change, sends updating message to target BS;
Target BS, for the X2 address according to lastest imformation acquisition source base station, to upgrade, and sets up X2 communication link with the X2 address upgraded.
Source base station, during specifically for occurring in X2 address to change, sends updating message to target BS; Contain the feedback information of source base station X2 address to target BS feedback packet according to request message;
Target BS, during specifically for receiving updating message, sends the request message obtaining X2 address to source base station; According to the feedback information that source base station sends, the X2 address of source base station is upgraded, and set up X2 communication link with the X2 address upgraded.
Present system also comprises mobile management entity (MME);
Described source base station specifically for, when occurring in X2 address to change, send the updating message of the base station eNB transformat of X2 address change to MME; Source base station contains the feedback information of source base station X2 address to target BS feedback packet through MME according to request message; Contain the feedback information of source base station X2 address to target BS feedback packet according to request message;
MME is used for, and the updating message that the updating message of eNB transformat is converted to MME transformat is sent to target BS; MME is used for, and the feedback information that receiving package contains source base station X2 address sends to target BS.
Source base station also for, when judging the generation chain rupture of X2 communication link, open the protection timer of an X2 communication link, when protecting timer to expire, transmission obtains the request message of X2 address to target BS, to set up X2 communication link according to target BS to the feedback information including the X2 address that target BS upgrades that request message feeds back;
Target BS also for; when judging the generation chain rupture of X2 communication link; open the protection timer of an X2 communication link; when protecting timer to expire; transmission obtains the request message of X2 address to source base station, to set up X2 communication link according to source base station to the feedback information including the X2 address that source base station upgrades that request message feeds back.
For clear statement the present invention, below by way of specific embodiment, carry out clear detailed description in detail to the present invention, embodiment, only for clearly demonstrating the present invention, is not limited to protection content of the present invention.
Embodiment 1
In this embodiment, provide after a kind of source base station X2 address changes, proactive notification target BS and target BS obtain the process of X2 transport address again by protection timer.
Source base station X2 changes address, and send the updating message of eNB transformat to MME, the updating message of eNB transformat can be eNBCONFIGURATIONTRANSFER message here, carries the field that X2 address upgrades in message.(following table 1X2TNLConfigurationChange field).
The updating message that the updating message of eNB transformat is converted to MME transformat is sent to target BS by MME; Such as, MMECONFIGURATIONTRANSFER (X2 address undated parameter).
Target BS sends the request message obtaining X2 address after receiving the updating message of X2 address, source base station ground to source base station, such as, and eNBCONFIGURATIONTRANSFER, acquisition request X2 address parameter.
Source base station contains the feedback information of source base station X2 address to target BS feedback packet according to request message, feedback information is forwarded to target BS by MME.
According to feedback information, the X2 address of target BS to source base station upgrades, and sets up communication link with the X2 address upgraded.
In the present embodiment, source base station notifies target BS by X2TNLConfigurationChange parameter (X2 address change) newly-increased in eNBCONFIGURATIONTRANSFER message, target BS can know that X2 chain rupture causes because source base station X2 transport address changes in time, thus can restart X2 transport address acquisition flow process.Concrete message structure is as shown in table 1:
Wherein, X2TNLConfigurationChange, for representing that whether X2 transport address changes mark, TRUE represents and changes.X2TNLConfigurationInfo, so with the new X2 transport address changed, be exactly mainly IP address.
Table 1, eNB/MMECONFIGURATIONTRANSFER message
Wherein, X2TNLConfigurationChange, for representing that whether X2 transport address changes mark, TRUE represents and changes.X2TNLConfigurationInfo, so with the new X2 transport address changed, be exactly mainly IP address.
Embodiment 2
Target BS judges the X2 communication link generation chain rupture with source base station, and open protection timer, such as Timer_x2link, assumed by default is 3 minutes.
When protection timer Timer_x2link expires; at this moment; likely that genuine physical link interrupts; or the X2 address change of source base station; because target BS is in the message not receiving source base station; cannot determine, so target BS sends the request message obtaining X2 address, suppose it is eNBCONFIGURATIONTRANSFER (request X2 transport address).
What source base station contained the X2 address of renewal by MME feedback packet feeds back to target BS, to set up X2 communication link.
By above embodiment, solve current LTE36.413 agreement do not describe when source base station occur X2 transport address change time, how notification target base station, thus cause target BS and source base station always may be in X2 interrupted communication link problem; Thus enabling source base station and target BS re-establish X2 communication link in time, the function of related dependant X2 communication link can be protected.
Although the execution mode disclosed by the application is as above, the execution mode that described content only adopts for ease of understanding the application, and be not used to limit the application, as the concrete implementation method in embodiment of the present invention.Those of skill in the art belonging to any the application; under the prerequisite not departing from the spirit and scope disclosed by the application; any amendment and change can be carried out in the form implemented and details; but the scope of patent protection of the application, the scope that still must define with appending claims is as the criterion.
Claims (11)
1. realize the method that X2 address upgrades, it is characterized in that, comprising:
When the X2 address of source base station occurs to change, send updating message to target BS;
Target BS according to the X2 address of lastest imformation acquisition source base station, to upgrade, and sets up X2 communication link with the X2 address upgraded.
2. method according to claim 1, is characterized in that, described target BS obtains source base station X2 address according to lastest imformation and specifically comprises:
Described target BS, according to described lastest imformation, sends the request message obtaining X2 address to source base station;
Described source base station contains the feedback information of the X2 address of source base station to target BS feedback packet according to request message;
Described target BS obtains the X2 address of source base station according to feedback information.
3. method according to claim 1 and 2, is characterized in that, when the X2 address of described source base station occurs to change, sends updating message specifically comprise to target BS:
Source base station sends the updating message of the base station eNB transformat of X2 address change to mobile management entity MME;
The updating message that the updating message of eNB transformat is converted to MME transformat is sent to target BS by MME.
4. method according to claim 2, is characterized in that, the feedback information that described source base station contains source base station X2 address according to request message to target BS feedback packet specifically comprises:
Source base station contains the feedback information of source base station X2 address to target BS feedback packet through MME according to request message.
5. method according to claim 1 and 2, is characterized in that, when source base station judges the generation chain rupture of X2 communication link, the method also comprises:
Described source base station opens the protection timer of an X2 communication link; when protecting timer to expire; send and obtain the request message of X2 address to target BS, with according to target BS, request message feed back, the feedback information of the X2 address that includes target BS renewal sets up X2 communication link.
6. method according to claim 1 and 2, is characterized in that, when target BS judges the generation chain rupture of X2 communication link, the method also comprises:
Described target BS opens the protection timer of an X2 communication link; when protecting timer to expire; transmission obtains the request message of X2 address to source base station, to set up X2 communication link according to source base station to the feedback information including the X2 address that source base station upgrades that request message feeds back.
7. realize the system that X2 address upgrades, it is characterized in that, comprising: source base station and object base station; Wherein,
Source base station, during for occurring in X2 address to change, sends updating message to target BS;
Target BS, for the X2 address according to lastest imformation acquisition source base station, to upgrade, and sets up X2 communication link with the X2 address upgraded.
8. system according to claim 7, is characterized in that,
Described source base station specifically for, X2 address occur change time, to target BS send updating message; Contain the feedback information of source base station X2 address to target BS feedback packet according to request message;
Described target BS specifically for, when receiving updating message, send to source base station and obtain the request message of X2 address; According to the feedback information that source base station sends, the X2 address of source base station is upgraded, and set up communication link with the X2 address upgraded.
9. system according to claim 7, is characterized in that, this system also comprises mobile management entity MME;
Described source base station specifically for, when occurring in X2 address to change, send the updating message of the base station eNB transformat of X2 address change to mobile management entity MME;
MME is used for, and the updating message that the updating message of eNB transformat is converted to MME transformat is sent to target BS.
10. system according to claim 8, is characterized in that, this system also comprises mobile management entity MME;
Described source base station specifically for, X2 address occur change time, to target BS send updating message; Contain the feedback information of source base station X2 address to target BS feedback packet according to request message; Source base station contains the feedback information of source base station X2 address to target BS feedback packet through MME according to request message;
MME is used for, and the feedback information that receiving package contains source base station X2 address sends to target BS.
11. systems according to claim 7, is characterized in that,
Described source base station also for, when judging the generation chain rupture of X2 communication link, open the protection timer of an X2 communication link, when protecting timer to expire, transmission obtains the request message of X2 address to target BS, to set up X2 communication link according to target BS to the feedback information including the X2 address that target BS upgrades that request message feeds back;
Described target BS also for; when judging the generation chain rupture of X2 communication link; open the protection timer of an X2 communication link; when protecting timer to expire; transmission obtains the request message of X2 address to source base station, to set up X2 communication link according to source base station to the feedback information including the X2 address that source base station upgrades that request message feeds back.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410563681.2A CN105530622A (en) | 2014-10-21 | 2014-10-21 | Method and system for updating X2 address |
| PCT/CN2015/084234 WO2016062127A1 (en) | 2014-10-21 | 2015-07-16 | Method for implementing x2 address update, and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410563681.2A CN105530622A (en) | 2014-10-21 | 2014-10-21 | Method and system for updating X2 address |
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| CN105530622A true CN105530622A (en) | 2016-04-27 |
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| CN201410563681.2A Withdrawn CN105530622A (en) | 2014-10-21 | 2014-10-21 | Method and system for updating X2 address |
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| CN (1) | CN105530622A (en) |
| WO (1) | WO2016062127A1 (en) |
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| CN101541093B (en) * | 2008-03-21 | 2013-04-24 | 华为技术有限公司 | Method and device for establishing and maintaining interface connection |
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| CN103220815B (en) * | 2012-01-18 | 2019-02-15 | 中兴通讯股份有限公司 | A kind of inter-base station interface connection method for building up and device |
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- 2014-10-21 CN CN201410563681.2A patent/CN105530622A/en not_active Withdrawn
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| CN101299876A (en) * | 2007-04-30 | 2008-11-05 | 华为技术有限公司 | Synchronisation method, communication switching method, wireless network and node |
| CN101674667A (en) * | 2008-09-10 | 2010-03-17 | 中兴通讯股份有限公司 | Method for managing X2 connection relation among base stations |
| CN101730305A (en) * | 2008-10-10 | 2010-06-09 | 中兴通讯股份有限公司 | Method for informing base station transport address in long-term evolution system |
| CN101730306A (en) * | 2008-10-22 | 2010-06-09 | 中兴通讯股份有限公司 | Base station transport address alteration notification method, system, mobile management entity and base station |
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| WO2016062127A1 (en) | 2016-04-28 |
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