CN105208588A - Method for replacing terminal anchor base station - Google Patents
Method for replacing terminal anchor base station Download PDFInfo
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- CN105208588A CN105208588A CN201410287621.2A CN201410287621A CN105208588A CN 105208588 A CN105208588 A CN 105208588A CN 201410287621 A CN201410287621 A CN 201410287621A CN 105208588 A CN105208588 A CN 105208588A
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Abstract
The invention proposes a method for replacing a terminal anchor base station. The method includes the following steps that: base stations report idleness degree parameters to a management entity; the management entity calculates the idleness degree of each base station and transmits idleness indication messages to the base stations; when an anchor base station is busy, and a service base station establishes a tunnel with the anchor base station, the anchor base station transmits an anchor base station busy indication to the service base station to prompt the service base station to replace the anchor base station; and the service base station performs anchor base station replacement operation according to the prompting of the anchor base station. With the method of the invention adopted, the load of the base stations can be adjusted autonomously, and the problem of excessively high load of the base stations can be solved, and improvement of the stability of a network can be benefitted, and user experience can be enhanced.
Description
Technical field
The present invention relates to moving communicating field, particularly relate to a kind of method changing dead end anchor base station.
Background technology
When many base station networkings, uneven due to customer service and geographical distribution, traditional access can cause the laod unbalance of base station, the utilance of wireless network entirety can be caused further to reduce and the decline of user QoS.
Under normal circumstances, manual mode is taked in load of base station equilibrium, is dependent on long-term base station sight data.When regular overload occurs in base station, regulate base station relevant system parameters and ensure that base station is normally run.But the place that this mode changes greatly in time for load of base station, can cause manual adjustments base station system parameter frequently.Meanwhile, once anchor base station breaks down, then cannot be returned with the business datum of this base station great amount of terminals that is anchor.
Existing replacing anchor base station mechanism, notifies to realize by message between base station mutually.This realization has obvious deficiency: 1) all need between any base station in same Route Area regular to carry out the mutual of Payload message, when base station is more, can waste system resource very much, increase overhead; 2) each base station all needs the load information knowing all base stations in its Route Area, place, makes each base station need preserve a large amount of data; 3) when transmission switches across Route Area, serving BS need know the station list of Route Area, anchor base station place.When anchor base station sends fault, the load information of base station in Route Area, anchor base station place is not known because of serving BS, serving BS can only by repeatedly attempting setting up with the base station of Route Area, anchor base station place contacting, the user of former anchor base station is taken in request target base station, and it is lower that this implementation can cause changing anchor efficiency.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of method changing dead end anchor base station, and the method comprises: base station reports busy extent index to management entity; Management entity calculates the busy degree of each base station, and it is to this transmission base station, base station busy Indication message; Anchor base station busy, when there being serving BS to set up tunnel to it, described anchor base station sends the busy instruction of anchor base station to it, and prompting serving BS changes anchor base station; Serving BS, according to the prompting of anchor base station, carries out the operation of replacing anchor base station.
Further, the method also comprises: if anchor base station busy degree reduces, and management entity sends the not busy Indication message in base station to anchor base station, and anchor base station can not send the busy instruction of anchor base station again to the tunnel request of setting up received thereafter.
Further, the method also comprises: serving BS detects anchor base station fault, carries out the operation of replacing anchor base station.Wherein, described serving BS detects that anchor base station fault comprises: described serving BS can't detect the tunnel heartbeat message with anchor base station; And/or, after request message is set up in described serving BS transmission tunnel, do not receive tunnel and set up request-reply message.
Preferably, described replacing anchor base station operation specifically comprises: serving BS sends to management entity and changes anchor base station request; Management entity is that serving BS selects multiple anchor base station, and assignable tunnelling user number under new anchor base station is provided, be handed down to serving BS; The user changing anchor is assigned to new anchor base station by serving BS, sends data importing request, set up two layer tunnel with new anchor base station to new anchor base station.
Further, described to this new anchor base station transmission data importing request, the process setting up two layer tunnel with this new anchor base station comprises: described serving BS sends data importing request to new anchor base station, sets up list item required for data retransmission, and carries user data; Described new anchor base station sets up list item needed for data retransmission, and return data imports response.Needed for data retransmission, list item comprises: tunnel, DAIB table, CCB table and address filtering table.
Further, the method also comprises: upgrade DAIB, address filtering table, acl list between described serving BS and terminal.
Preferably, the method also comprises: after described serving BS receives the new anchor base station information that described management entity issues, this information is preserved a period of time, during this period, if have anchor base station load too high or the fault of identical Route Area, serving BS selects anchor base station to change from the new anchor base station list of preserving.
Preferably, the method also comprises: serving BS sends to old anchor base station and removes anchor base station request, deletes tunnel and notifies that old anchor base station deletes user's anchor base station information.
The method of replacing dead end anchor base station that the present invention proposes, normally runs at network, unmanned when intervening, and system can the base station of Timeliness coverage load too high, regulates load of base station in an autonomous manner, solves the problem that load of base station is too high.Further, when anchor base station breaks down, it can be the new anchor base station of terminal distribution.This invention is conducive to improving network stabilization, strengthens Consumer's Experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the basic procedure block diagram of the inventive method;
Fig. 2 is network equipment link composition in the inventive method;
Fig. 3 is that base station reports tunnel busy parameter flow chart;
Fig. 4 is management entity instruction base station busy and triggers to change anchor base station flow chart;
Fig. 5 is anchor base station fault one, and serving BS triggers changes anchor base station flow chart;
Fig. 6 is anchor base station fault two, and serving BS triggers changes anchor base station flow chart.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments; It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The present invention is by wireless network management entity, and all base stations in Overall Network, make each base station not need to know the load information of other base stations.Management entity, according to each load of base station situation, for the terminal use being anchor base station with the base station of load too high distributes new anchor base station, thus reduces the load of former anchor base station.When anchor base station breaks down, anchor mechanisms is changed in serving BS startup, and management entity distributes new anchor base station, makes the business datum of user terminal be continued transmission.
The key step of the method for replacing dead end anchor base station provided by the invention please refer to accompanying drawing 1, mainly comprises:
Base station reports busy extent index to management entity; Management entity calculates the busy degree of each base station, and it is to this transmission base station, base station busy Indication message; Anchor base station busy, when there being serving BS to set up tunnel to it, described anchor base station sends the busy instruction of anchor base station to it, and prompting serving BS changes anchor base station; Serving BS, according to the prompting of anchor base station, carries out the operation of replacing anchor base station.
Further, the method also comprises: if anchor base station busy degree reduces, and management entity sends the not busy Indication message in base station to anchor base station, and anchor base station can not send the busy instruction of anchor base station again to the tunnel request of setting up received thereafter.
Further, the method also comprises: serving BS detects anchor base station fault, carries out the operation of replacing anchor base station.Wherein, described serving BS detects that anchor base station fault comprises: described serving BS can't detect the tunnel heartbeat message with anchor base station; And/or, after request message is set up in described serving BS transmission tunnel, do not receive tunnel and set up request-reply message.
Preferably, described replacing anchor base station operation specifically comprises: serving BS sends to management entity and changes anchor base station request; Management entity is that serving BS selects multiple anchor base station, and assignable tunnelling user number under new anchor base station is provided, be handed down to serving BS; The user changing anchor is assigned to new anchor base station by serving BS, sends data importing request, set up two layer tunnel with new anchor base station to new anchor base station.
Further, described to this new anchor base station transmission data importing request, the process setting up two layer tunnel with this new anchor base station comprises: described serving BS sends data importing request to new anchor base station, sets up list item required for data retransmission, and carries user data; Described new anchor base station sets up list item needed for data retransmission, and return data imports response.Needed for data retransmission, list item comprises: tunnel, DAIB table, CCB table and address filtering table.
Further, the method also comprises: upgrade DAIB, address filtering table, acl list between described serving BS and terminal.
Preferably, the method also comprises: after described serving BS receives the new anchor base station information that described management entity issues, this information is preserved a period of time, during this period, if have anchor base station load too high or the fault of identical Route Area, serving BS selects anchor base station to change from the new anchor base station list of preserving.
Preferably, the method also comprises: serving BS sends to old anchor base station and removes anchor base station request, deletes tunnel and notifies that old anchor base station deletes user's anchor base station information.
The present invention selects multiple new anchor base station to be handed down to serving BS by management entity, serving BS is to each base station assigned user number, thus the load too high avoiding a large number of users to be switched to target BS causing this target BS, and then carry out anchor base station continually and change anchor operation.
Be described in detail below by the specific implementation of the present invention in McWiLL network.
Change the network architecture diagram of dead end anchor base station methods as shown in Figure 2, each part function declaration is as follows:
Wireless terminal: the termination function module realizing McWiLL broadband multimedia cluster system network.
Base station: the air interface function realizing McWiLL broadband multimedia cluster system, comprises air interface physical layer, MAC layer and Network layer function, and user is linked into different business service networks.
EMS: as wireless network management entity, realizes the Network Management Function of McWiLL broadband multimedia cluster system.
Base station described by accompanying drawing 3 reports its busy extent index flow chart to EMS, and this flow process comprises:
Step 101, base station report its tunnel busy parameter to EMS, and start timer T100;
The busy degree of this base station of busy calculation of parameter that step 102, EMS are reported by base station, if base station busy degree changes, then EMS informing base station;
Step 103, base timer T100 time-out, base station reports its tunnel busy degree to EMS again, and starts timer T100.
Embodiment one: please refer to accompanying drawing 4, management entity EMS indicates base station busy and triggers and changes anchor base station flow process, and this flow process comprises:
By the busy degree of base station, step 201, EMS judge to do in this base station, then its Indication message that hurries to this transmission base station, base station;
After step 202, former anchor base station receive this message, record it and hurry.This state does not have any impact to the tunnel existed, and sets up request to the tunnel received thereafter, after former anchor base station replys tunnel foundation response, can notify tunnel foundation side " anchor base station is done " immediately;
Step 203, serving BS send tunnel to former anchor base station and set up request;
Step 204, former anchor base station find that its tunnel does, then set up tunnel, set up response to serving BS tunnel;
Step 205, former anchor base station send anchor base station to serving BS and to hurry Indication message, and the user that prompting has just set up that tunnel needs to delete, MAC is corresponding in message needs to change anchor base station;
Step 206, serving BS then send to EMS and change anchor base station request;
After step 207, EMS receive this information, analyze all base stations state connected to the network, whether have the information such as high severity alarm, current busy degree in the recent period, select multiple new anchor base station, and assignable tunnelling user number under providing each new anchor base station, be handed down to serving BS by changing anchor response;
Step 208, serving BS receive and change anchor response, preserve the new anchorage station number of distribution and can distribute tunnelling user number information, and under being assigned to new anchor base station by needing the user changing anchor, corresponding distributed tunnelling user number subtracts one.Send data importing request to new anchor base station, set up all list items required for data retransmission, comprise tunnel, DAIB table, CCB table, address filtering table, tell this new anchor base station its using the new anchor base station as user, and carry the data of user's necessity;
Step 209, new anchor base station set up all list items required for data retransmission, and comprise tunnel, DAIB table, CCB table, address filtering table, return data imports response;
Step 210, serving BS send to old base station and remove anchor base station request, delete tunnel and notify that old anchor base station deletes user's anchor base station information;
Step 211, old anchor base station are replied and are removed anchor base station response.
Step 212, upgrade between serving BS and terminal DAIB, address filtering table, acl list upgrade;
Step 213, judge that this base station is not busy by the busy degree of base station as EMS, then its to this transmission base station, base station not busy Indication message, after anchor base station replys response to the tunnel received the thereafter request of setting up, the busy instruction of anchor base station can not be sent again.
Embodiment two: please refer to accompanying drawing 5, anchor base station fault, serving BS triggers changes anchor base station flow process; This fault causes tunnel between base station and sets up unsuccessfully.This flow process comprises:
Step 301, wireless terminal initiate data service registration request to base station, send DataServiceRequest message, carry the IPlist data that present terminal connects, comprise ip address, mac address, ip type, the attributes such as conversation type;
Step 302, base station return DataServiceResponse message to terminal;
Step 303, base station judge terminal i plist data, judge that anchor base station belonging to this IP is as other base station, send tunnel and set up request message, carried terminal id, and set up the port that tunnel uses to anchor base station;
Step 304, serving BS receive tunnel and set up response 3 time-out;
Step 305, serving BS send to EMS and change anchor base station request;
After step 306, EMS receive this information, analyze base station state connected to the network, whether have the information such as high severity alarm, current busy degree in the recent period, select multiple new anchor base station, and assignable tunnelling user number under providing each new anchor base station, be handed down to serving BS by changing anchor response;
Step 307, serving BS receive and change anchor response, preserve the new anchorage station number of distribution and can distribute tunnelling user number information, and under the tunnel failed user of foundation is assigned to new anchor base station, corresponding distributed tunnelling user number subtracts one.Send data importing request to new anchor base station, set up all list items required for data retransmission, comprise tunnel, DAIB table, CCB table, address filtering table, tell new anchor base station its using the new anchor base station as user, and carry the data of user's necessity;
Step 308, new anchor base station set up all list items required for data retransmission, and comprise tunnel, DAIB table, CCB table, address filtering table, return data imports response;
Step 309, upgrade between serving BS and terminal DAIB, address filtering table, acl list upgrade.
Embodiment three: please refer to accompanying drawing 6, anchor base station fault, serving BS triggers changes anchor base station flow chart.This fault causes tunnel heartbeat message between base station and takes defeat.This flow process comprises:
Step 401, wireless terminal initiate data service registration request to BS, send DataServiceRequest message, carry the IPlist data that present terminal connects, comprise ip address, mac address, ip type, the attributes such as conversation type;
Step 402, base station return DataServiceResponse message to terminal;
Step 403, base station judge terminal i plist data, judge that anchor base station belonging to this IP is as other base station, send tunnel and set up request message, carried terminal id, and set up the port that tunnel uses to anchor base station;
Step 404, between serving BS and former anchor base station, set up tunnel;
Step 405, former anchor base station timing can send tunnel heartbeat message to serving BS;
Step 406, serving BS repeatedly can not receive tunnel heartbeat message;
Step 407, serving BS judge to lose with former anchor base station to connect, and send change anchor base station request to EMS,
After step 408, EMS receive this information, analyze base station state connected to the network, whether have the information such as high severity alarm, current busy degree in the recent period, select multiple new anchor base station, and assignable tunnelling user number under providing each new anchor base station, be handed down to serving BS by changing anchor response;
Step 409, serving BS receive and change anchor response, preserve the new anchorage station number of distribution and can distribute tunnelling user number information, and under user heartbeat do not received is assigned to new anchor base station, corresponding distributed tunnelling user number subtracts one.Send data importing request to new anchor base station, set up all list items required for data retransmission, comprise tunnel, DAIB table, CCB table, address filtering table, tell this new anchor base station its using the new anchor base station as user, and carry the data of user's necessity;
Step 410, new anchor base station set up all list items required for data retransmission, and comprise tunnel, DAIB table, CCB table, address filtering table, return data imports response;
Step 411, serving BS remove the tunnel of old anchor base station, send tunnel termination request to old base station;
Step 412, old anchor base station reply tunnel termination response, and this replys because the operating state of old anchor base station may not exist;
Step 413, upgrade between serving BS and terminal DAIB, address filtering table, acl list upgrade.
In above-mentioned three embodiments, EMS is handed down to the new anchor base station information provided in the replacing anchor base station response of serving BS, and serving BS can preserve a period of time, such as 5 minutes.At this moment, if having anchor base station load too high or the fault of identical Route Area, serving BS can select anchor base station from the new anchor base station list of preserving, and the distributed tunnelling user number of this anchor base station subtracts one.
As can be seen from above each embodiment, the replacing dead end anchor base station mechanism utilizing method provided by the invention to realize, has the following advantages: automatically regulate wireless network load balancing, do not need human intervention; Without the need to arranging for terminal specifically " anchor base station ", reducing maintenance cost, enhancing the maintainability of terminal; Avoid because load of base station is too high and cause the instability of system, ensure the normal operation of network; Anchor base station solves once cannot obtain with the business datum of this base station great amount of terminals that is anchor the problem that returns after breaking down.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. change a method for dead end anchor base station, it is characterized in that, the method comprises:
Base station reports busy extent index to management entity;
Management entity calculates the busy degree of each base station, and it is to this transmission base station, base station busy Indication message;
Anchor base station busy, when there being serving BS to set up tunnel to it, described anchor base station sends the busy instruction of anchor base station to it, and prompting serving BS changes anchor base station;
Serving BS, according to the prompting of anchor base station, carries out the operation of replacing anchor base station.
2. method according to claim 1, is characterized in that, the method also comprises:
If anchor base station busy degree reduces, management entity sends the not busy Indication message in base station to anchor base station, and anchor base station no longer sends the busy instruction of anchor base station to the tunnel received thereafter request of setting up.
3. method according to claim 1, is characterized in that, the method also comprises: serving BS detects anchor base station fault, carries out the operation of replacing anchor base station.
4. method according to claim 3, is characterized in that, described serving BS detects that anchor base station fault comprises: described serving BS can't detect the tunnel heartbeat message with anchor base station; And/or, after request message is set up in described serving BS transmission tunnel, do not receive tunnel and set up request-reply message.
5. the method according to Claims 1 to 4 any one, is characterized in that, described replacing anchor base station operation specifically comprises:
Serving BS sends to management entity and changes anchor base station request;
Management entity is that serving BS selects multiple anchor base station, and assignable tunnelling user number under new anchor base station is provided, be handed down to serving BS;
The user changing anchor is assigned to new anchor base station by serving BS, sends data importing request, set up two layer tunnel with new anchor base station to new anchor base station.
6. method according to claim 5, it is characterized in that, described to this new anchor base station transmission data importing request, the process setting up two layer tunnel with this new anchor base station comprises: described serving BS sends data importing request to new anchor base station, set up list item required for data retransmission, and carry user data; Described new anchor base station sets up list item needed for data retransmission, and return data imports response.
7. method according to claim 6, is characterized in that, needed for described data retransmission, list item comprises: tunnel, DAIB table, CCB table and address filtering table.
8. method according to claim 7, is characterized in that, the method also comprises: upgrade DAIB, address filtering table, acl list between described serving BS and terminal.
9. method according to claim 5, is characterized in that, the method also comprises:
After described serving BS receives the new anchor base station information that described management entity issues, this information is preserved a period of time, during this period, if having anchor base station load too high or the fault of identical Route Area, serving BS selects anchor base station to change from the new anchor base station list of preserving.
10. the method according to claim 1 ~ 9 any one, is characterized in that, the method also comprises: serving BS sends to old anchor base station and removes anchor base station request, deletes tunnel and notifies that old anchor base station deletes user's anchor base station information.
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| CN201410287621.2A CN105208588A (en) | 2014-06-24 | 2014-06-24 | Method for replacing terminal anchor base station |
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| CN201410287621.2A CN105208588A (en) | 2014-06-24 | 2014-06-24 | Method for replacing terminal anchor base station |
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| CN101601204A (en) * | 2006-12-13 | 2009-12-09 | 日本电气株式会社 | The mobility anchor allocation method that uses in home network system and this home network system |
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| CN1620161A (en) * | 2003-11-21 | 2005-05-25 | 三菱电机株式会社 | Mobile communication system, master base station and slave base station |
| CN101502046A (en) * | 2006-08-14 | 2009-08-05 | 卢森特技术有限公司 | Broadcast anchor availability indication |
| CN101601204A (en) * | 2006-12-13 | 2009-12-09 | 日本电气株式会社 | The mobility anchor allocation method that uses in home network system and this home network system |
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