CN104349301A

CN104349301A - Double-connection realization method, system and base station

Info

Publication number: CN104349301A
Application number: CN201310349610.8A
Authority: CN
Inventors: 陈中明; 杜忠达
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2013-08-09
Filing date: 2013-08-09
Publication date: 2015-02-11
Also published as: WO2014169841A1

Abstract

The invention discloses a double-connection realization method, which comprises the following steps that when data connection corresponding to an anchor point cell is modified, one non-anchor point cell in all non-anchor point cells is modified into a new anchor point cell, and in addition, the original anchor point cell is modified into a non-anchor point cell. Meanwhile, the invention also discloses a base station and a double-connection realization system. When the method, the system and the base station are adopted, the interruption of data transmission between UE (user equipment) and a network can be effectively avoided.

Description

The implementation method of dual link, system and base station

Technical field

The present invention relates to Long Term Evolution (LTE, Long Term Evolution) technology, particularly relate to the implementation method of a kind of dual link (Dual Connectivity), system and base station.

Background technology

Fig. 1 is the general frame schematic diagram of LTE system in prior art, as shown in Figure 1, the framework of LTE system comprises: mobile management entity (MME, Mobility Management Entity), gateway (SGW, Serving GetWay), subscriber equipment (UE, User Equipment) and base station (eNB, eNodeB); Wherein, the interface between UE and eNB is UU interface, and the interface between eNB and MME is S1-MME(S1for the control plane) interface, the interface between eNB and SGW is S1-U interface, and the interface between two eNB is X2 interface.Here, UE also can be called terminal.

In LTE system, the process that UE sets up calling comprises: set up chain of command link between UE and eNB and the process of user face link and the process of the chain of command link set up between eNB and core net and user face link.After the calling procedure foundation of UE, chain of command data between eNB and core net are carried by the connection of setting up between the MME in eNB and core net, user face data between eNB and core net is carried by the evolution RAB (ERAB, E-UTRAN Radio Access Bearer) set up between the SGW in eNB and core net; And the user face data between eNB and UE adopts Data Radio Bearer (DRB, Data Radio Bearer) to carry, chain of command data then adopt Signaling Radio Bearer (SRB, Signalling Radio Bearer) to carry.

Along with the surge of mobile subscriber's large discharge business, simultaneously in order to adding users throughput and enhancing travelling performance, many companies and operation commercial city are tended to seek a kind of new enhanced scheme, and dual link technology is comparatively typical technical scheme in enhanced scheme.In dual link technology, as shown in Figure 2, UE can keep being connected with two or more eNB simultaneously, and give an example, UE is in the coverage of macrocell 1 and macrocell 2 simultaneously, macrocell 1 and macrocell 2 belong to different eNB, when adopting dual link technology, UE keeps being connected with macrocell 1, simultaneously, UE keeps being connected with macrocell 2, and namely UE all sets up DRB with macrocell 1 and macrocell 2 simultaneously.Adopt dual link technology, when network load is unbalanced, network side can the data volume transmitted in the data link set up respectively with two or more community of real-time monitoring UE.In dual link technology, can in all communities of UE access, select a community as host cell, that is, multiple data cube computation that control and management is set up be responsible in the community as host cell, to ensure speed and the correctness of transfer of data.

But, there is following defect in current dual link technology: when host cell changes, need to be changed by handoff procedure, and after UE receives switching command, until access new host cell, the transfer of data between UE and network is interrupted.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of implementation method of dual link, system and base station, effectively can avoid the interruption of transfer of data between UE and network.

For achieving the above object, technical scheme of the present invention is achieved in that

The invention provides a kind of implementation method of dual link, comprising:

During amendment data cube computation corresponding to anchor point community, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community.

In such scheme, when there being more than three data cube computation in described dual link, when new anchor point community is revised as in a non-anchor community in all non-anchor communities, described method also comprises:

New anchor point community is determined from described all non-anchor communities;

Accordingly, describedly new anchor point community be revised as in a non-anchor community in all non-anchor communities be:

New anchor point community is revised as in the new anchor point community determined.

In such scheme, described new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community, comprising:

The second base station that first base station of described former anchor point community ownership and described new anchor point community belong to, UE and core net are carried out alternately, described UE also carries out alternately with described second base station, and described second base station and described core net are carried out alternately, make a non-anchor community in all non-anchor communities be revised as new anchor point community, and make described former anchor point community be revised as non-anchor community.

In such scheme, the second base station that first base station of described former anchor point community ownership and described new anchor point community belong to, UE and core net are carried out alternately, described UE also carries out alternately with described second base station, and described second base station and described core net are carried out alternately, a non-anchor community in all non-anchor communities is made to be revised as new anchor point community, and make described former anchor point community be revised as non-anchor community, comprising:

Described first base station sends the message of amendment anchor point community or the message of amendment signaling bear to described second base station;

After described first base station receives the acknowledge message that described second base station returns, send the message of amendment anchor point community or the message of amendment signaling bear to described UE;

Described former anchor point community is modified as described new anchor point community, has revised backward described second base station and replied the message revised after receiving the message of amendment anchor point community or the message of amendment signaling bear by described UE;

Described second base station receives after amendment that described UE replys completes message, sends the message of amendment anchor point community or the message of amendment signaling bear to described core net;

Described core net is carried out alternately with described second base station after receiving the message of amendment anchor point community or the message of amendment signaling bear, realizes setting up signaling bear with described new anchor point community, and data path is transferred to described new anchor point community; Meanwhile, described core net and described first base station are carried out alternately, delete the signaling bear set up with described former anchor point community.

In such scheme, described method also comprises:

When revising data cube computation corresponding to described former anchor point community, the data cube computation that described UE and the data between network other community in all communities of described dual link except described former anchor point community is corresponding transmits.

In such scheme, the data cube computation that described UE and the data between network other community in all communities of described dual link except described former anchor point community is corresponding transmits, comprising:

Described second base station sends the message of amendment non-anchor community to described UE or deletes community and increase the message of community;

Described UE receives the message of amendment non-anchor community or deletes community after increasing the message of community, the data of interrupting on the data cube computation that described former anchor point community is corresponding send, before completing data cube computation corresponding to the described former anchor point community of amendment, the data cube computation that other community in all communities of described dual link except described former anchor point community of the data between described UE with described network is corresponding transmits.

In such scheme, described method also comprises:

During amendment data cube computation corresponding to non-anchor community, the data cube computation that described UE is corresponding with other community in all communities of described dual link except the non-anchor community of revising of the data between network transmits.

In such scheme, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and after non-anchor community is revised as in former anchor point community, described method also comprises:

Revise with data cube computation corresponding to the non-anchor community of described former anchor point community amendment, complete the amendment of data cube computation corresponding to described former anchor point community.

Present invention also offers a kind of base station, described base station comprises: modified module, during for revising data cube computation corresponding to anchor point community, new anchor point community being revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community.

In such scheme, described modified module, also for when there being more than three data cube computation in described dual link, when new anchor point community is revised as in a non-anchor community in all non-anchor communities, determines new anchor point community from described all non-anchor communities; Accordingly, new anchor point community is revised as in the new anchor point community determined.

In such scheme, described base station also comprises: transport module, during for revising data cube computation corresponding to described former anchor point community, the data cube computation that other community making the data between UE with network in all communities of described dual link except described former anchor point community is corresponding transmits.

In such scheme, described transport module, time also for revising data cube computation corresponding to non-anchor community, make data cube computation corresponding to other community in all communities of described dual link except the non-anchor community of revising of the data between described UE with described network transmits.

In such scheme, described modified module, also for new anchor point community is revised as in a non-anchor community in all non-anchor communities, and after non-anchor community is revised as in former anchor point community, revise with data cube computation corresponding to the non-anchor community of described former anchor point community amendment, complete the amendment of data cube computation corresponding to described former anchor point community.

What invention further provides a kind of dual link realizes system, described system comprises: the first base station, during for revising data cube computation corresponding to anchor point community, new anchor point community being revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community.

In such scheme, described first base station, also for when there being more than three data cube computation in described dual link, when new anchor point community is revised as in a non-anchor community in all non-anchor communities, determines new anchor point community from described all non-anchor communities; Accordingly, new anchor point community is revised as in the new anchor point community determined.

In such scheme, described system also comprises: UE, the second base station and core net; Wherein,

Described first base station, new anchor point community is being revised as in a non-anchor community in all non-anchor communities, and when non-anchor community is revised as in former anchor point community, specifically for: the second base station belonged to described new anchor point community, described UE and core net are carried out alternately, described UE also carries out alternately with described second base station, and described second base station and described core net are carried out alternately, make a non-anchor community in all non-anchor communities be revised as new anchor point community, and make described former anchor point community be revised as non-anchor community.

In such scheme, described first base station, for sending the message of amendment anchor point community or the message of amendment signaling bear to described second base station, and after receiving the acknowledge message that described second base station returns, send the message of amendment anchor point community or the message of amendment signaling bear to described UE;

Described UE, for receive described first base station send amendment anchor point community message or amendment signaling bear message after, described former anchor point community is modified as described new anchor point community, has revised backward described second base station and replied the message revised;

Described second base station, after the amendment of replying for receiving described UE completes message, sends the message of amendment anchor point community or the message of amendment signaling bear to described core net;

Described core net, for receive described second base station send amendment anchor point community message or amendment signaling bear message after, carry out alternately with described second base station, realize setting up signaling bear with described new anchor point community, and data path is transferred to described new anchor point community; Meanwhile, carry out alternately with described first base station, delete the signaling bear set up with described former anchor point community.

In such scheme, described first base station, time also for revising data cube computation corresponding to described former anchor point community, the data cube computation that other community making the data between UE with network in all communities of described dual link except described former anchor point community is corresponding transmits.

In such scheme, when revising data cube computation corresponding to described anchor point community, described second base station, for sending the message of amendment non-anchor community or deleting community and increase the message of community to described UE;

Described UE, for receive described second base station send amendment non-anchor community message after, the data of interrupting on the data cube computation that described former anchor point community is corresponding send, before completing data cube computation corresponding to the described former anchor point community of amendment, the data cube computation corresponding with other community in all communities of described dual link except described former anchor point community of the data between described network transmits.

In such scheme, described first base station, time also for revising data cube computation corresponding to non-anchor community, make data cube computation corresponding to other community in all communities of described dual link except the non-anchor community of revising of the data between described UE with described network transmits.

In such scheme, described first base station, also for new anchor point community is revised as in a non-anchor community in all non-anchor communities, and after non-anchor community is revised as in former anchor point community, revise with data cube computation corresponding to the non-anchor community of described former anchor point community amendment, complete the amendment of data cube computation corresponding to described former anchor point community.

The implementation method of dual link provided by the invention, system and base station, during amendment data cube computation corresponding to anchor point community, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community, due to former anchor point community is revised in order to non-anchor community, and redefine new anchor point community, therefore, when the data cube computation that the described former anchor point community of amendment is corresponding, based on the characteristic of dual link technology, can make to have remained data cube computation between UE and network, thus efficiently avoid the interruption of transfer of data between UE and network in dual link change process, and then improve performance and the Consumer's Experience of user data service.

Accompanying drawing explanation

Fig. 1 is the general frame schematic diagram of LTE system in prior art;

Fig. 2 is the system architecture schematic diagram of dual link technology;

Fig. 3 is the implementation method schematic flow sheet of dual link of the present invention;

Fig. 4 is the implementation method schematic flow sheet of the embodiment of the present invention one dual link;

Fig. 5 is the implementation method schematic flow sheet of the embodiment of the present invention two dual link;

Fig. 6 is the implementation method schematic flow sheet of the embodiment of the present invention three dual link;

Fig. 7 is the implementation method schematic flow sheet of the embodiment of the present invention four dual link;

Fig. 8 is the structural representation of base station of the present invention;

Fig. 9 be dual link of the present invention realize system configuration schematic diagram.

Embodiment

Basic thought of the present invention is: during amendment data cube computation corresponding to anchor point community, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community.

Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.

The implementation method of dual link of the present invention, as shown in Figure 3, comprises the following steps:

Step 301: during amendment data cube computation corresponding to anchor point community, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community;

Here, described dual link refers to that UE belongs to different base station simultaneously community with two or more keeps data cube computation.

Described anchor point community refers to host cell, and in other words, multiple data cube computation that control and management is set up are responsible in host cell, to ensure speed and the correctness of transfer of data; Correspondingly, described non-anchor community refers to non-host cell, and in other words, the transmission of data is only responsible in non-host cell.

In all communities of described dual link, only have an anchor point community, all the other communities are non-anchor community.

The opportunity of data cube computation corresponding to amendment anchor point community can be: the dtr signal of described former anchor point community or the overload etc. of described former anchor point community.

When there being more than three data cube computation in described dual link, when new anchor point community is revised as in a non-anchor community in all non-anchor communities, the method can further include:

Accordingly, described new anchor point community is revised as in a non-anchor community in all non-anchor communities, is specially:

When determining new anchor point community, select in all non-anchor communities of described dual link, can determine according to the rule pre-set, when the rule such as pre-set for setting up data cube computation between more than UE and three community, then determine that the non-anchor community that in two or more non-anchor community, signal is stronger is new anchor point community.

Determine that the mode of new anchor point community can also have alternate manner, be those skilled in the art's conventional techniques means, will not enumerate here.

Described new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community, in other words, anchor point community changes.

Described new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community, specifically comprise:

The second base station that first base station of described former anchor point community ownership and described new anchor point community belong to, UE and core net are carried out alternately, UE also carries out alternately with described second base station, and described second base station and core net are carried out alternately, make a non-anchor community in all non-anchor communities be revised as new anchor point community, and make described former anchor point community be revised as non-anchor community;

More specifically, described first base station sends the message of amendment anchor point community or the message of amendment signaling bear to described second base station;

Described second base station receive described UE reply amendment complete message after, to core net send amendment anchor point community message or amendment signaling bear message;

New anchor point community is revised as in a non-anchor community in all non-anchor communities, and after non-anchor community is revised as in former anchor point community, the method can also comprise:

The standard of described first base station and described second base station can be all FDD or TDD.

Step 302: when revising data cube computation corresponding to described former anchor point community, the data cube computation that other community in all communities of described dual link except described former anchor point community of the data between UE with network is corresponding transmits.

Particularly, described second base station sends the message of amendment non-anchor community to described UE or deletes community and increase the message of community;

Wherein, other community described can be described new anchor point community and/or non-anchor community.Here, when practical application, can the data controlled between described UE with described network be transmit on the data cube computation that described new anchor point community is corresponding as required, or transmit on the data cube computation that non-anchor community is corresponding, or transmit on data cube computation corresponding to described new anchor point community and non-anchor community.

The method can also comprise:

During amendment data cube computation corresponding to non-anchor community, the data cube computation that other community in all communities of described dual link except the non-anchor community of revising of the data between described UE with described network is corresponding transmits.

Here, the opportunity of the data cube computation that amendment non-anchor community is corresponding can be: the dtr signal of non-anchor community or the overload etc. of non-anchor community.

Other community described can be anchor point community and/or non-anchor community.Here, when practical application, can the data controlled between described UE with described network be transmit on the data cube computation that anchor point community is corresponding as required, or transmit on the data cube computation that other non-anchor community is corresponding, or transmit on the data cube computation that anchor point community and other non-anchor community are corresponding.

Wherein, the specific implementation that the data cube computation that other community in all communities of described dual link except the non-anchor community of revising of the data between described UE with described network is corresponding carries out transmitting can adopt prior art, repeats no more here.

In LTE system, base station is eNB.

Embodiment one

In the present embodiment, UE is in the coverage of multiple community of base station 1 and multiple communities of base station 2 simultaneously, and UE connects with base station 1 and base station 2 simultaneously, particularly, UE is set up by the community 1 of base station 1 and the community 2 of base station 2 simultaneously data cube computation, and community 1 is anchor point community, community 2 is non-anchor community; Base station 1 is in Frequency Division Duplexing (FDD)-Long Term Evolution (FDD-LTE, Frequency Division Duplexing-Long Term Evolution) standard network in, in other words, the standard of base station 1 is Frequency Division Duplexing (FDD) (FDD, Frequency Division Duplexing), base station 2 is in time division duplex-Long Term Evolution (TDD-LTE, Time Division Duplexing-Long Term Evolution) standard network in, in other words, the standard of base station 2 is time division duplex (TDD, Time Division Duplexing); In LTE system, base station is eNB.The implementation method of the present embodiment dual link, as shown in Figure 4, comprises the following steps:

Step 401: base station 1 is to UE sending measuring task;

Here, base station 1 is not the content that the present invention is concerned about to the opportunity of UE sending measuring task.

Step 402:UE measures after receiving measurement task, and to base station 1 reporting measurement reports;

Here, the concrete processing procedure that UE carries out measuring can adopt prior art.

Step 403: after base station 1 receives the measurement report that UE reports, finds community 1 dtr signal of base station 1 according to measurement report, community 3 signal of base station 1 is comparatively strong, determines to change community 1 into community 3;

Here, community 1 dtr signal is thought in base station 1, and the specific implementation that community 3 signal is stronger is not the content that the present invention is concerned about.

Step 404: base station 1 sends the message of amendment anchor point community or the message of amendment signaling bear to base station 2;

Here, the message of the amendment anchor point community sent to base station 2 or the message of amendment signaling bear comprise new anchor point cell information, the configuration information of signaling bear can also be comprised, the such as configuration information of wireless spread-spectrum technology (RLC, Radio Link Control) and the configuration information of logic channel.Wherein, described new anchor point cell information is the mark of community 2.

Step 405: base station 2 confirms configuration, returns acknowledge message to base station 1 after receiving the message of amendment anchor point community or the message of amendment signaling bear;

Step 406: after base station 1 receives the acknowledge message of base station 2, sends the message of amendment anchor point community or the message of amendment signaling bear to UE;

Here, new anchor point cell information is comprised to the message of the amendment anchor point community that UE sends or the message of amendment signaling bear; The configuration information of signaling bear can also be comprised, the configuration information of such as RLC and the configuration information of logic channel.Wherein, described new anchor point cell information is the mark of community 2.

Community 2 is modified as new anchor point community after receiving the message of amendment anchor point community or the message of amendment signaling bear by step 407:UE, and replys amendment to the base station 2 of new anchor point community ownership to complete message;

Here, the concrete processing procedure that community 2 is modified as new anchor point community by UE is those skilled in the art's conventional techniques means, repeats no more here.

Step 408: base station 2 receive UE reply amendment complete message after, to core net send amendment anchor point community message or amendment signaling bear message;

Here, comprise new anchor point cell information to the message of the amendment anchor point community that core net sends or the message of amendment signaling bear, the configuration information of signaling bear and the IP address information of community 2 can also be comprised.Wherein, described new anchor point cell information is the mark of community 2.

Step 409: after core net receives the message of amendment anchor point community or the message of amendment signaling bear, carry out alternately with base station 2, to realize setting up signaling bear with new anchor point community, and data path is transferred to new anchor point community, simultaneously, core net sends the message of deleting community 1 to base station 1, to delete the signaling bear set up with community 1;

Here, new anchor point community is community 2.

Described data path is specially general packet wireless service tunnel protocol (GTP-U, the General Packet radio Service Tunnel-User) tunnel in user face.

Step 410: the base station 2 that new anchor point community belongs to sends the message of amendment non-anchor community to UE or deletes community and increase the message of community, namely deletes community 1 and increases the message of community 3;

Here, revise the message of non-anchor community or delete community and the message increasing community comprises the mark of community 1 and community 3; Send the message of amendment non-anchor community or delete community and the object increasing the message of community allows UE that community 3 is revised as from community 1 in non-anchor community.

Step 411:UE receives amendment deletion community, non-anchor community and after increasing the message of community, the data of interrupting in community 1 send, and access community 3 also starts to carry out data transmission in community 3.

Here, before extremely accessing community 3 after the UE data of interrupting in community 1 send, UE carries out data transmission in new anchor point community and community 2, like this, maintains the continuity of transfer of data.

Because community 1 and community 3 all belong to base station 1, so after UE is linked into community 3, the related resource of community 1 correspondence can be deleted in base station 1 namely.

Here, it should be noted that: the standard of base station 1 can be TDD, and the standard of base station 2 can be FDD, or the standard of base station 1 and base station 2 is TDD or FDD, in other words, the standard of base station 1 and base station 2 on the present invention without any impact.

Embodiment two

In the present embodiment, UE is in the coverage of multiple community of base station 1 and multiple communities of base station 2 simultaneously, and UE connects with base station 1 and base station 2 simultaneously, particularly, UE is set up by the community 3 of base station 1 and the community 2 of base station 2 simultaneously data cube computation, and community 2 is anchor point community, community 3 is non-anchor community; Base station 1 is in the network of FDD-LTE standard, and in other words, the standard of base station 1 is FDD, and base station 2 is in TDD-LTE, and in the network of standard, in other words, the standard of base station 2 is TDD; In LTE system, base station is eNB.The implementation method of the present embodiment dual link, as shown in Figure 5, comprises the following steps:

Step 501: base station 2 is to UE sending measuring task;

Here, base station 2 is not the content that the present invention is concerned about to the opportunity of UE sending measuring task.

Step 502:UE measures after receiving measurement task, and to base station 2 reporting measurement reports;

Step 503: after base station 2 receives the measurement report that UE reports, finds community 2 dtr signal of base station 2 according to measurement report, community 4 signal of base station 3 is comparatively strong, determines to change community 2 into community 4;

Here, community 2 dtr signal is thought in base station 2, and the specific implementation that community 4 signal of base station 3 is stronger is not the content that the present invention is concerned about.

Step 504: base station 2 sends the message of amendment anchor point community or the message of amendment signaling bear to base station 1;

Here, the message of the amendment anchor point community sent to base station 1 or the message of amendment signaling bear comprise new anchor point cell information, can also comprise the configuration information of signaling bear, the configuration information of such as RLC and the configuration information of logic channel.Wherein, described new anchor point cell information is the mark of community 3.

Step 505: base station 1 confirms configuration, returns acknowledge message to base station 2 after receiving the message of amendment anchor point community or the message of amendment signaling bear;

Step 506: after base station 2 receives the acknowledge message of base station 1, sends the message of amendment anchor point community or the message of amendment signaling bear to UE;

Here, new anchor point cell information is comprised to the message of the amendment anchor point community that UE sends or the message of amendment signaling bear; The configuration information of signaling bear can also be comprised, the configuration information of such as RLC and the configuration information of logic channel.Wherein, described new anchor point cell information is the mark of community 3.

Community 3 is modified as new anchor point community after receiving the message of amendment anchor point community or the message of amendment signaling bear by step 507:UE, sends amendment complete message to the base station 1 of new anchor point community ownership;

Here, the concrete processing procedure that community 3 is modified as new anchor point community by UE is those skilled in the art's conventional techniques means, repeats no more here.

Step 508: base station 1 receive UE reply amendment complete message after, to core net send amendment anchor point community message or amendment signaling bear message;

Here, comprise new anchor point cell information to the message of the amendment anchor point community that core net sends or the message of amendment signaling bear, the configuration information of signaling bear and the IP address information of community 3 can also be comprised.Wherein, described new anchor point cell information is the mark of community 3.

Step 509: after core net receives the message of amendment anchor point community or the message of amendment signaling bear, carry out alternately with base station 1, to realize setting up signaling bear with new anchor point community, and data path is transferred to new anchor point community, simultaneously, core net sends the message of deleting community 2 to base station 2, to delete the signaling bear set up with community 2;

Here, new anchor point community is community 3.

Described data path is specially GTP-U tunnel.

Step 510: the base station 1 that new anchor point community belongs to sends the message of amendment non-anchor community to UE or deletes community and increase the message of community, and meanwhile, base station 1 sends to UE to increase the message of community 4 to base station 3;

Here, revise the message of non-anchor community or delete community and the message increasing community comprises the mark of community 2 and community 4; Send the message of amendment non-anchor community or delete community and the object increasing the message of community allows UE that community 4 is revised as from community 2 in non-anchor community.

After base station 3 receives the message increasing community 4, the related resource of reserved community 4 correspondence, so that UE can access community 4.

Step 511:UE receives the message of amendment non-anchor community or deletes community and after increasing the message of community, interrupt the data transmission in community 2, access community 4 and also start to carry out data transmission in community 4, perform step 512 afterwards.

Here, before extremely accessing community 4 after the UE data of interrupting in community 2 send, UE carries out data transmission in new anchor point community and community 3, like this, maintains the continuity of transfer of data.

Step 512: base station 1 sends to UE to delete the message of community 2 to base station 2.

Here, after UE is linked into community 4, base station 1 needs to send to UE to delete the message of community 2 to base station 2, so that base station 2 receives to after the message of UE deletion community 2, deletes the related resource of community 2 correspondence.

Here, it should be noted that: the standard of base station 1 can be TDD, and the standard of base station 2 can be FDD, or the standard of base station 1 and base station 2 is TDD or FDD, in other words, the standard of base station 1 and base station 2 on the present invention without any impact; In like manner, the standard of base station 3 can be TDD or FDD, the standard of base station 3 on the present invention also without any impact.

Embodiment three

In the present embodiment, UE is in the coverage of multiple community of base station 1 and multiple communities of base station 2 simultaneously, and UE connects with base station 1 and base station 2 simultaneously, particularly, UE is set up by the community 1 of base station 1 and the community 2 of base station 2 simultaneously data cube computation, and community 1 is anchor point community, community 2 is non-anchor community; Base station 1 is in the network of FDD standard, and in other words, the standard of base station 1 is FDD, and base station 2 is in the network of TDD-LTE standard, and in other words, the standard of base station 2 is TDD; In LTE system, base station is eNB.The implementation method of the present embodiment dual link, as shown in Figure 6, comprises the following steps:

According to the relevant information of self, step 601: base station 1 finds the overload of community 1, finds that the load of the community 3 of base station 1 is comparatively light, determines to change community 1 into community 3;

Here, base station 1 finds the overload of community 1, find that according to self relevant information the concrete processing procedure that the load of the community 3 of base station 1 is lighter is not the content that the present invention is concerned about, that is: base station 1 judges the overload of community 1, concrete processing procedure that the load of community 3 is lighter is not the content that the present invention is concerned about.

Step 602: base station 1 sends the message of amendment anchor point community or the message of amendment signaling bear to base station 2;

Here, the message of the amendment anchor point community sent to base station 2 or the message of amendment signaling bear comprise new anchor point cell information, can also comprise the configuration information of signaling bear, the configuration information of such as RLC and the configuration information of logic channel.Wherein, described new anchor point cell information is the mark of community 3.

Step 603: base station 2 confirms configuration, returns acknowledge message to base station 1 after receiving the message of amendment anchor point community or the message of amendment signaling bear;

Step 604: after base station 1 receives the acknowledge message of base station 2, sends the message of amendment anchor point community or the message of amendment signaling bear to UE;

Community 2 is modified as new anchor point community after receiving the message of amendment anchor point community or the message of amendment signaling bear by step 605:UE, and replys amendment to the base station 2 of new anchor point community ownership to complete message;

Step 606: base station 2 receive UE reply amendment complete message after, to core net send amendment anchor point community message or amendment signaling bear message;

Step 607: after core net receives the message of amendment anchor point community or the message of amendment signaling bear, carry out alternately with base station 2, to realize setting up signaling bear with new anchor point community, and data path is transferred to new anchor point community, simultaneously, core net sends the message of deleting community 1 to base station 1, to delete the signaling bear set up with community 1;

Here, new anchor point community is community 2.

Described data path is specially GTP-U tunnel.

Step 608: the base station 2 that new anchor point community belongs to sends the message of amendment non-anchor community to UE or deletes community and increase the message of community, namely deletes community 1 and increases the message of community 3;

Step 609:UE receives the message of amendment non-anchor community or deletes community and after increasing the message of community, interrupt the data transmission in community 1, access community 3 and also start to carry out data transmission in community 3.

For embodiment one, embodiment two and embodiment three, when practical application, if base station needs two of dual link Serving cells all to change, then can according to the amendment urgency of two Serving cells and the good experience ensureing UE service, first can revise non-anchor community is the community that signal is good, or first amendment anchor point community is the community that signal is good.Wherein, described amendment urgency refers to: the signal strength signal intensity of Serving cell has made UE normally cannot receive, send data.

Embodiment four

In the present embodiment, UE be in simultaneously multiple communities of base station 1, multiple community of base station 2 and base station 3 multiple communities coverage in, and UE connects with base station 1, base station 2 and base station 3 simultaneously, particularly, UE is set up by the community 3 of the community 1 of base station 1, the community 2 of base station 2 and base station 3 simultaneously data cube computation, and community 1 is anchor point community, community 2 and community 3 are non-anchor community; Base station 1 is in the network of FDD-LTE standard, and in other words, the standard of base station 1 is FDD, base station 2 is in the network of TDD-LTE standard, and in other words, the standard of base station 2 is TDD, base station 3 is in the network of FDD-LTE standard, and in other words, the standard of base station 3 is FDD; In LTE system, base station is eNB.The implementation method of the present embodiment dual link, as shown in Figure 7, comprises the following steps:

Step 701: base station 1 is to UE sending measuring task;

Step 702:UE measures after receiving measurement task, and to base station 1 reporting measurement reports;

Step 703: after base station 1 receives the measurement report that UE reports, finds community 1 dtr signal of base station 1 according to measurement report, community 4 signal of base station 1 is comparatively strong, determines to change community 1 into community 4;

Here, community 1 dtr signal is thought in base station 1, and the specific implementation that community 4 signal is stronger is not the content that the present invention is concerned about.

Step 704: base station 1 sends the message of amendment anchor point community or the message of amendment signaling bear to base station 2;

Here, base station 1 finds the signal strength signal intensity of signal strength signal intensity higher than the community 3 of base station 3 of the community 2 of base station 2 simultaneously according to the measurement report of terminal to report, therefore, determines that the community 2 of base station 2 is new anchor point community.

The message of the amendment anchor point community sent to base station 2 or the message of amendment signaling bear comprise new anchor point cell information, can also comprise the configuration information of signaling bear, the configuration information of such as RLC and the configuration information of logic channel.Wherein, described new anchor point cell information is the mark of community 2.

Step 705: base station 2 confirms configuration, returns acknowledge message to base station 1 after receiving the message of amendment anchor point community or the message of amendment signaling bear;

Step 706: after base station 1 receives the acknowledge message of base station 2, sends the message of amendment anchor point community or the message of amendment signaling bear to UE;

Community 2 is modified as new anchor point community after receiving the message of amendment anchor point community or the message of amendment signaling bear by step 707:UE, and replys amendment to the base station 2 of new anchor point community ownership to complete message;

Step 708: base station 2 receive UE reply amendment complete message after, to core net send amendment anchor point community message or amendment signaling bear message;

Step 709: after core net receives the message of amendment anchor point community or the message of amendment signaling bear, carry out alternately with base station 2, to realize setting up signaling bear with new anchor point community, and data path is transferred to new anchor point community, simultaneously, core net sends the message of deleting community 1 to base station 1, to delete the signaling bear set up with community 1;

Here, new anchor point community is community 2.

Described data path is specially GTP-U tunnel.

Step 710: the base station 2 that new anchor point community belongs to sends the message of amendment non-anchor community to UE or deletes community and increase the message of community, namely deletes the message that community 1 increases community 4;

Here, revise the message of non-anchor community or delete community and the message increasing community comprises the mark of community 1 and community 4; Send the message of amendment non-anchor community or delete community and the object increasing the message of community allows UE that community 4 is revised as from community 1 in non-anchor community.

Step 711:UE receives the message of amendment non-anchor community or deletes community and after increasing the message of community, interrupt the data transmission in community 1, access community 4 and also start to carry out data transmission in community 4.

Here, UE interrupt data in community 1 send after to before access community 4, UE can carry out data transmission in new anchor point community and community 2 and/or community 3, like this, maintains the continuity of transfer of data.

Because community 1 and community 4 all belong to base station 1, so after UE is linked into community 4, the related resource of community 1 correspondence can be deleted in base station 1 namely.

When practical application, if the community 4 switched does not belong to base station 1, when the base station 2 that then new anchor point community belongs to sends the message of amendment non-anchor community to UE, the base station belonged to community 4 is needed to send to UE to increase the message of community 4, so that the related resource of community 4 correspondence is reserved in the base station that community 4 belongs to UE, so that UE can access community 4; Accordingly, after UE accesses community 4, the base station 2 that new anchor point community belongs to needs to send to UE to delete the message of community 1 to base station 1, so that base station 1 receives to after the message of UE deletion community 1, deletes the related resource of community 1 correspondence.

Here, it should be noted that: the standard of base station 1 can be TDD, the standard of base station 2 can be FDD, the standard of base station 1 can be TDD, or, the standard of base station 1, base station 2 and base station 3 is TDD or FDD, in other words, the standard of base station 1, base station 2 and base station 3 on the present invention without any impact.

It should be noted that: the processing procedure that the processing procedure of data cube computation and embodiment three are set up in UE and more than four base stations is simultaneously identical, repeats no more here.

For realizing said method, present invention also offers a kind of base station, as shown in Figure 8, this base station comprises: modified module 81, during for revising data cube computation corresponding to anchor point community, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community.

This base station can further include: transport module 82, during for revising data cube computation corresponding to described former anchor point community, the data cube computation that other community making the data between UE with network in all communities of described dual link except described former anchor point community is corresponding transmits.

Wherein, described modified module 81, also for when there being more than three data cube computation in described dual link, when new anchor point community is revised as in a non-anchor community in all non-anchor communities, determines new anchor point community from described all non-anchor communities; Accordingly, new anchor point community is revised as in the new anchor point community determined.

Described transport module 82, time also for revising data cube computation corresponding to non-anchor community, make data cube computation corresponding to other community in all communities of described dual link except the non-anchor community of revising of the data between described UE with described network transmits.

Described modified module 81, also for new anchor point community is revised as in a non-anchor community in all non-anchor communities, and after non-anchor community is revised as in former anchor point community, revise with data cube computation corresponding to the non-anchor community of described former anchor point community amendment, complete the amendment of data cube computation corresponding to described former anchor point community.

In practical application, described modified module 81 specifically can by the central processing unit (CPU in base station, Central Processing Unit), digital signal processor (DSP, Digital Singnal Processor) or programmable logic array (FPGA, Field-Programmable Gate Array) realization; Described transport module 82 specifically can by the transceiver implementation of base station.

Here, the concrete processing procedure of the modified module in base station of the present invention describes in detail hereinbefore, repeats no more.

Based on said method and base station, what present invention also offers a kind of dual link realizes system, as shown in Figure 9, comprise: the first base station 91, during for needing to revise data cube computation corresponding to anchor point community, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community.

Particularly, by the modified module of the first base station 91 when revising data cube computation corresponding to anchor point community, new anchor point community being revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in described former anchor point community.

Wherein, described first base station 91, time also for revising data cube computation corresponding to described former anchor point community, the data cube computation that other community making the data between UE with network in all communities of described dual link except described former anchor point community is corresponding transmits.

Particularly, when revising data cube computation corresponding to described anchor point community by the transport module of the first base station 91, the data cube computation that other community making the data between UE with network in all communities of described dual link except described former anchor point community is corresponding transmits.

Here, the base station that belongs to for former anchor point community, described first base station 91.

Described first base station 91, also for when there being more than three data cube computation in described dual link, when new anchor point community is revised as in a non-anchor community in all non-anchor communities, determines new anchor point community from described all non-anchor communities; Accordingly, new anchor point community is revised as in the new anchor point community determined.

This system can further include: UE92, the second base station 93 and core net 94; Wherein,

Described first base station 91, new anchor point community is being revised as in a non-anchor community in all non-anchor communities, and when non-anchor community is revised as in former anchor point community, specifically for: the second base station 93 belonged to described new anchor point community, described UE92 and core net 94 are carried out alternately, described UE92 also carries out alternately with described second base station 93, and described second base station 93 is carried out alternately with described core net 94, make a non-anchor community in all non-anchor communities be revised as new anchor point community, and make described former anchor point community be revised as non-anchor community.

More specifically, described first base station 91, for sending the message of amendment anchor point community or the message of amendment signaling bear to described second base station 93, and after receiving the acknowledge message that described second base station 92 returns, send the message of amendment anchor point community or the message of amendment signaling bear to described UE92;

Described UE92, for receive described first base station 91 send amendment anchor point community message or amendment signaling bear message after, described former anchor point community is modified as described new anchor point community, has revised backward described second base station 93 and replied the message revised;

Described second base station 93, after the amendment of replying for receiving described UE92 completes message, sends the message of amendment anchor point community or the message of amendment signaling bear to described core net 94;

Described core net 94, for receive described second base station 93 send amendment anchor point community message or amendment signaling bear message after, carry out alternately with described second base station 93, realize setting up signaling bear with described new anchor point community, and data path is transferred to described new anchor point community; Meanwhile, carry out alternately with described first base station 91, delete the signaling bear set up with described former anchor point community.

Wherein, described second base station 93 is the base station of described new anchor point community ownership.

Described first base station 91, time also for revising data cube computation corresponding to non-anchor community, make data cube computation corresponding to other community in all communities of described dual link except the non-anchor community of revising of the data between described UE92 with described network transmits.

Particularly, during by the data cube computation that the transport module amendment non-anchor community of the first base station 91 is corresponding, make data cube computation corresponding to other community in all communities of described dual link except the non-anchor community of revising of the data between described UE92 with described network transmits.

When revising data cube computation corresponding to described anchor point community, described second base station 93, for sending the message of amendment non-anchor community to described UE92;

Described UE92, for receiving the message of the amendment non-anchor community that described second base station 93 sends or deleting community after increasing the message of community, the data of interrupting on the data cube computation that described former anchor point community is corresponding send, before completing data cube computation corresponding to the described former anchor point community of amendment, the data cube computation corresponding with other community in all communities of described dual link except described former anchor point community of the data between described network transmits.

Described first base station, also for new anchor point community is revised as in a non-anchor community in all non-anchor communities, and after non-anchor community is revised as in former anchor point community, revise with data cube computation corresponding to the non-anchor community of described former anchor point community amendment, complete the amendment of data cube computation corresponding to described former anchor point community.

Particularly, by the modified module of described first base station, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and after non-anchor community is revised as in former anchor point community, revise with data cube computation corresponding to the non-anchor community of described former anchor point community amendment, complete the amendment of data cube computation corresponding to described former anchor point community.

In LTE system, base station is eNB.

Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.

Claims

1. an implementation method for dual link, is characterized in that, described method comprises:

2. method according to claim 1, is characterized in that, when there being more than three data cube computation in described dual link, when new anchor point community is revised as in a non-anchor community in all non-anchor communities, described method also comprises:

3. method according to claim 1, is characterized in that, described new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community, comprising:

The second base station that first base station of described former anchor point community ownership and described new anchor point community belong to, subscriber equipment (UE) and core net are carried out alternately, described UE also carries out alternately with described second base station, and described second base station and described core net are carried out alternately, make a non-anchor community in all non-anchor communities be revised as new anchor point community, and make described former anchor point community be revised as non-anchor community.

4. method according to claim 3, it is characterized in that, the second base station that first base station of described former anchor point community ownership and described new anchor point community belong to, UE and core net are carried out alternately, described UE also carries out alternately with described second base station, and described second base station and described core net are carried out alternately, make a non-anchor community in all non-anchor communities be revised as new anchor point community, and make described former anchor point community be revised as non-anchor community, comprising:

5. the method according to any one of Claims 1-4, is characterized in that, described method also comprises:

6. want the method described in 5 according to right, it is characterized in that, the data cube computation that described UE and the data between network other community in all communities of described dual link except described former anchor point community is corresponding transmits, comprising:

7. the method according to any one of Claims 1-4, is characterized in that, described method also comprises:

8. the method according to any one of Claims 1-4, is characterized in that, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and after non-anchor community is revised as in former anchor point community, described method also comprises:

9. a base station, it is characterized in that, described base station comprises: modified module, during for revising data cube computation corresponding to anchor point community, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community.

10. base station according to claim 9, it is characterized in that, described modified module, also there are more than three data cube computation in described dual link for working as, when new anchor point community is revised as in a non-anchor community in all non-anchor communities, from described all non-anchor communities, determine new anchor point community; Accordingly, new anchor point community is revised as in the new anchor point community determined.

11. base stations according to claim 9 or 10, it is characterized in that, described base station also comprises: transport module, during for revising data cube computation corresponding to described former anchor point community, the data cube computation that other community making the data between UE with network in all communities of described dual link except described former anchor point community is corresponding transmits.

12. base stations according to claim 11, it is characterized in that, described transport module, time also for revising data cube computation corresponding to non-anchor community, make data cube computation corresponding to other community in all communities of described dual link except the non-anchor community of revising of the data between described UE with described network transmits.

13. base stations according to claim 9 or 10, it is characterized in that, described modified module, also for new anchor point community is revised as in a non-anchor community in all non-anchor communities, and after non-anchor community is revised as in former anchor point community, revise with data cube computation corresponding to the non-anchor community of described former anchor point community amendment, complete the amendment of data cube computation corresponding to described former anchor point community.

14. 1 kinds of dual link realize system, it is characterized in that, described system comprises: the first base station, during for revising data cube computation corresponding to anchor point community, new anchor point community is revised as in a non-anchor community in all non-anchor communities, and non-anchor community is revised as in former anchor point community.

15. systems according to claim 14, it is characterized in that, described first base station, also there are more than three data cube computation in described dual link for working as, when new anchor point community is revised as in a non-anchor community in all non-anchor communities, from described all non-anchor communities, determine new anchor point community; Accordingly, new anchor point community is revised as in the new anchor point community determined.

16. systems according to claim 14, is characterized in that, described system also comprises: UE, the second base station and core net; Wherein,

17. systems according to claim 15, is characterized in that,

Described first base station, for sending the message of amendment anchor point community or the message of amendment signaling bear to described second base station, and after receiving the acknowledge message that described second base station returns, send the message of amendment anchor point community or the message of amendment signaling bear to described UE;

18. according to claim 14 to the system described in 17 any one, it is characterized in that, described first base station, time also for revising data cube computation corresponding to described former anchor point community, the data cube computation that other community making the data between UE with network in all communities of described dual link except described former anchor point community is corresponding transmits.

19. systems according to claim 18, is characterized in that, when revising data cube computation corresponding to described anchor point community, described second base station, for sending the message of amendment non-anchor community or deleting community and increase the message of community to described UE;

20. according to claim 14 to the system described in 17 any one, it is characterized in that, described first base station, time also for revising data cube computation corresponding to non-anchor community, make data cube computation corresponding to other community in all communities of described dual link except the non-anchor community of revising of the data between described UE with described network transmits.

21. according to claim 14 to the system described in 17 any one, it is characterized in that, described first base station, also for new anchor point community is revised as in a non-anchor community in all non-anchor communities, and after non-anchor community is revised as in former anchor point community, revise with data cube computation corresponding to the non-anchor community of described former anchor point community amendment, complete the amendment of data cube computation corresponding to described former anchor point community.