CN102215545A - Method and device for re-establishing return link in relay network - Google Patents
Method and device for re-establishing return link in relay network Download PDFInfo
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- CN102215545A CN102215545A CN2010101458610A CN201010145861A CN102215545A CN 102215545 A CN102215545 A CN 102215545A CN 2010101458610 A CN2010101458610 A CN 2010101458610A CN 201010145861 A CN201010145861 A CN 201010145861A CN 102215545 A CN102215545 A CN 102215545A
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Abstract
The embodiment of the invention provides a method and device for re-establishing a return link in a relay network, and the method and device provided by the invention can be used for solving the problem that the return link can not be re-established when a relay node is subjected to a wireless link failure. The method comprises the following steps: when the relay node re-establishes the return link, if a reestablishment cell is not the original residence cell of the relay node, the relay node requests the base station of the reestablishment cell to re-establish the return link; information required for re-establishing the return link is sent to the base station of the reestablishment cell; and the base station of the reestablishment cell re-establishes the relay node and a terminal covered by the relay node according to the information required for re-establishing the return link.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to method and the device thereof of rebuilding return link in a kind of junction network.
Background technology
In 3GPP LTE (Long Term Evolution, Long Term Evolution) system, the sub-district process of reconstruction mainly is to solve the problem that UE (User Equipment, subscriber equipment) connection is interrupted under the terminal connection status by Signalling exchange, to avoid the UE call drop.Cause the reason of UE link interruption under linking status can comprise following several:
(1) Radio Link Failure;
(2) handoff failure;
(3) parity check failure;
(4) RRC (Radio Resource Control, Radio Resource control) connects reconfiguration failure.
When UE finds above one or more situations, carry out the cell selecting process, hang up the Radio Link carrying of all chains of command and user's face, and recover the connection of interruption by RRC connection re-establishment process.
Fig. 1 shows the process of RRC connection re-establishment.As shown in the figure, when UE choose can be resident the sub-district after, send RRC connection reconstruction request (RRCConnectionReestablishmentRequest) message, rebuild with the request network side and connect (seeing step 101); After network side is received this request, if network side preservation has the corresponding contextual information of this UE, then send the RRC connection reconstruction and agree (RRCConnectionReestablishment) message, stand this connection to agree to rebuild, and configuration respective wireless bearing resource (seeing step 102); After UE receives the connection re-establishment order, then finish connection reconstruction according to corresponding configuration, and send the RRC connection re-establishment to network side and finish (RRCConnectionReestablishmentComplete) message, finish (seeing step 103) to confirm the RRC connection reconstruction.
But, in the above-mentioned RRC connection re-establishment flow process, need to rebuild the contextual information that UE is preserved in the sub-district, otherwise process of reconstruction will not have the UE contextual information to fail owing to rebuilding the sub-district.In some scene, if former sub-district has little time to initiate switching command, then Target cell can't obtain to ask the contextual information of the UE of RRC connection re-establishment, belongs to different base station if rebuild the sub-district with former persistent district, and then RRC rebuilds the process of standing and will fail probably.At this problem, prior art can make source base station that the contextual information of UE is sent to target BS by triggering corresponding switching flow, thereby realizes the RRC connection re-establishment.
In LTE Release10 version, RN (Relay Node, via node) is used as the expansion system ovelay range, improve the important means of power system capacity and introduce network, RN UE at its covering in the Release10 network is similar to a DeNB (base station), then is similar to a terminal at DeNB, as shown in Figure 2, therefore also there is the link re-establishment problem that is similar to UE in RN, and promptly return link is rebuild problem.
The inventor finds that there is following defective at least in prior art in realizing process of the present invention:
In LTE Release10 version, as shown in Figure 3, at because radio link quality changes and to cause the return link decreased performance, and RLF (Radio Link Failure) has taken place, can cause the return link process of reconstruction this moment.But because RN does not support to switch, therefore the base station that rebuilds the sub-district in some cases can't obtain the relevant information that return link is rebuild, context as the UE under this RN covering, and this context to be this RN cover that UE down rebuilds that the RRC connection is necessary, therefore it is unsuccessful to cause return link to be rebuild, and then makes all UE under this RN covering all produce call drop.
Summary of the invention
The embodiment of the invention provides method and the device thereof of rebuilding return link in a kind of junction network, in order to solve in the existing junction network problem that can't rebuild return link during via node generation Radio Link Failure.
Rebuild the method for return link in the junction network that the embodiment of the invention provides, comprising:
When via node is rebuild return link, be not the former persistent district of this via node if rebuild the sub-district, then described via node request is rebuild the base station of sub-district and is carried out the return link reconstruction, and will rebuild the base station that the required information of return link sends to the reconstruction sub-district;
The base station that rebuilds the sub-district is carried out connection reconstruction according to the required information of described reconstruction return link at the terminal of described via node and covering thereof.
The via node equipment that the embodiment of the invention provides comprises:
Judge module is used for judging and rebuilding whether the sub-district is the former persistent district of this via node when via node is rebuild return link;
Rebuilding module is used for when described judge module judges that rebuilding the sub-district is not the former persistent district of this via node, and the base station that the sub-district is rebuild in request is carried out return link and rebuild, and will rebuild the base station that the required information of return link sends to the reconstruction sub-district.
The base station equipment that the embodiment of the invention provides comprises:
Interface module is used to receive the request of the reconstruction return link that via node sends, and rebuilds the required information of return link;
Rebuilding module, be used for according to described interface module receive request and rebuild the required information of return link, carry out connection reconstruction at the terminal of described via node and covering thereof.
In the above embodiment of the present invention, via node is rebuild return link in decision, and when judge rebuilding the sub-district and not being the former persistent district of this via node, send to the base station that rebuilds the sub-district by rebuilding the required information of return link, can be so that rebuild the base station of sub-district according to the required information of described reconstruction return link, terminal at described via node and covering thereof is carried out connection reconstruction, thereby when not having the relevant information of via node return link reconstruction at the reconstruction sub-district, can receive the information of the reconstruction return link of its transmission from via node, thereby finish connection reconstruction, and then guarantee that the terminal under this via node can proper communication at the terminal of this via node and covering thereof.
Description of drawings
Fig. 1 is the schematic flow sheet of RRC connection re-establishment in the prior art;
Fig. 2 is a Release10 system configuration schematic diagram of introducing via node in the prior art;
Fig. 3 is that the RRC behind the introducing via node rebuilds the schematic flow sheet of upright failure in the prior art;
Rebuild the logic flow schematic diagram of return link in the junction network that Fig. 4 provides for the embodiment of the invention;
Rebuild the signaling process schematic diagram of return link in the junction network that Fig. 5 provides for the embodiment of the invention;
The structural representation of the via node equipment that Fig. 6 provides for the embodiment of the invention;
The structural representation of the base station equipment that Fig. 7 provides for the embodiment of the invention.
Embodiment
For solving in the existing junction network, the base station that rebuilds the sub-district can't obtain to ask to rebuild the relevant information of the RN of return link, and RN does not support to switch, therefore the base station that causes rebuilding the sub-district can't be the problem of this RN reconstruction return link, and the embodiment of the invention provides the technical scheme of rebuilding return link in a kind of junction network.This technical scheme can be embodied as a kind of method, perhaps a kind of RN equipment, perhaps a kind of base station equipment.
Below in conjunction with the accompanying drawing in the embodiments of the invention, the technical scheme in the embodiments of the invention is clearly and completely described, obviously, the embodiments described below only are the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of embodiments of the invention protection.
Referring to Fig. 4, rebuild the logic flow schematic diagram of return link in the junction network that provides for the embodiment of the invention.The related network architecture of this flow process can be as shown in Figure 2, RN connects reasons such as reconfiguration failure because of Radio Link Failure, handoff failure, parity check failure or return link, when causing to carry out the return link reconstruction, this RN sends the request of passback link re-establishment to DeNB, to start the return link process of reconstruction.
As shown in Figure 4, the return link process of reconstruction can comprise:
In this step,, can determine to need to rebuild return link if RN detects when Radio Link Failure, handoff failure, parity check failure or return link taking place connecting reconfiguration failure.
Generally, RN can listen to the public information that DeNB sends, include cell identity information in this public information, as the sub-district physical label, RN can compare cell ID that listens to and the cell ID that oneself disposes, if both unanimities think that then rebuilding the sub-district is former persistent district, are other sub-districts (sub-districts that the cell ID that promptly listens to is indicated) otherwise build the sub-district.
The return link of the DeNB of step 403, RN reconstruction and former persistent district.The RRC connection reconstruction flow process of terminal in the reusable prior art of return link process of reconstruction in this step can realize according to the RRC connection reconstruction process of UE in the prior art.As, RN initiates return link to the DeNB of former persistent district and rebuilds request, the DeNB of former persistent district distributes MBSFN (MulticastBroadcast Single Frequency Network for this RN, Multicast Broadcast Single Frequency Network) subframe, and, carry out connection reconstruction at the terminal of this RN and covering thereof according to the required information of reconstruction return link of this RN of its preservation.
In the step 404 of above-mentioned flow process, the DeNB that rebuilds the sub-district carries out the connection reconstruction process at this RN and the UE that covered thereof, can comprise:
The DeNB that rebuilds the sub-district is the RN distribution of carrying out the MBSFN subframe, the foundation (being the foundation of radio bearer connecting interface) of S1/X2 interface, and the reconstruction indication that sends relevant RN to the DeNB of former persistent district;
The DeNB of former persistent district sends the sequence of downlink data packet to Target cell, and the downlink data packet that will receive is transmitted to the DeNB of Target cell;
The DeNB that rebuilds the sub-district is after obtaining former persistent district downlink data packet sequence, send GW Path Switch (gateway path transfer) signaling to network side MME (Mobility Management Entity), and after knowing that MME finishes Path Switch (path transfer), send ContextRelease (context release) information to the DeNB of former persistent district.
In order to rebuild the process of return link in the above junction network of clearer description, Fig. 5 shows the signaling process schematic diagram of rebuilding return link in a kind of junction network.
As shown in Figure 5, rebuild, and when determining the base station that rebuilds the sub-district and not being the base station of the former persistent district of this RN, the signaling process of rebuilding return link can comprise when RN need initiate return link:
Step 501, RN send to the base station (being shown target DeNB among the figure) that rebuilds the sub-district and rebuild request message, wherein carry the RN return link and rebuild required information, and the context as all UE under RN and the covering thereof also can comprise the identify label of this RN.
Step 502, target DeNB send to this RN and rebuild order, and wherein the configuration information of portability MBSFN subframe carries out the MBSFN sub-frame configuration to indicate RN.
Step 503, RN send reconstruction to target DeNB and finish message after finishing corresponding operating (as the configuration of MBSFN subframe) according to the reconstruction order.
Step 504, target DeNB send reconfiguration message to RN, and RN carries out reshuffling of return link with indication.
Step 505, RN send the S1 interface to target DeNB and set up message according to the reconfiguration message that receives.
Step 506, target DeNB send eNB to core net node (as MME) and reshuffle updating message after finishing the S1 interface configuration of this RN.
Step 507, RN send X2 interface to target DeNB and set up message.
Step 508, target DeNB send eNB to core net node and reshuffle updating message after the X2 interface configuration of finishing this RN.
Step 509, target DeNB send to source DeNB (i.e. the base station of the former persistent district of this RN) and rebuild indication information, this step can with the executed in parallel of eating dishes without rice or wine, i.e. this step execution not necessarily will be after eating dishes without rice or wine to execute the reconstruction order, under target DeNB thinks possible situation, can when finishing the information transmission, reconstruction send to source DeNB simultaneously.
Step 510, source DeNB send the SN status report according to the reconstruction indication that receives to target DeNB, portability downlink data packet sequence wherein, and can further carry the downlink data packet that receives.
Step 511, target DeNB are to core net node transmit path Transfer Message.
Step 512, core net node shift acknowledge message finishing after the path shifts out to target DeNB return path.
Step 513, target DeNB send respective contexts information release message to source DeNB, discharge the contextual information of the UE under this RN and the covering thereof with indication source DeNB.
In the step 501 of above-mentioned flow process, can promptly increase new information unit, rebuild required information with carrying RN return link by to existing transformation of rebuilding request message.
In the step 509 of above-mentioned flow process, the reusable existing switching of target DeNB confirms that signaling sends the reconstruction indication information to source DeNB, promptly confirms to increase new information unit in the signaling in existing switching, in order to the bearer reconstruction indication information.Also can use new signaling bear to rebuild indication information.
In fact, on the one hand, RN sends to the RN return link of target DeNB and rebuilds the reconstruction request message transmission that required information can not passed through step 501, send to target DeNB but finish message by the reconstruction of step 503, or setting up message by the S1 interface of step 505 sends to target DeNB, or by the embodiment of the invention newly-built message send to target DeNB;
On the other hand, target DeNB send to the MBSFN subframe configuration information of RN can be not reconstruction order by step 502 send, but send by the reconfiguration message of step 504, or by the embodiment of the invention newly-built message send.
More than the use capable of being combined of various situations, thereby form the signaling process that different embodiments of the invention provide.
Among the above embodiment of the present invention, can be by existing message or signaling be improved, promptly increase new information unit, what need be sent by this message with carrying rebuilds relevant information with return link, rebuilds required information (comprising the context of all UE under RN and the covering thereof, the identify label of RN etc.) as above-mentioned RN return link.
Among the above embodiment of the present invention, target DeNB can rebuild request message according to this and determine that the RN needs carry out return link and rebuild after receiving the reconstruction request message of RN.For example, can in rebuilding request message, carry return link and rebuild indication information (as sign),, and then send the reconstruction order to RN so that target DeNB can learn that the RN needs carry out return link and rebuild according to this indication information; Can also show that this reconstruction request message is to be used to ask the base station to carry out the message that return link is rebuild by other modes, C-RNTI as the sign RN by operator planning, DeNB just can know that receiving after RN uses the reconstruction request that this C-RNTI sends this reconstructions request is the request that this RN asks the reconstruction return link according to making an appointment.
By above flow process as can be seen, in the above embodiment of the present invention, rebuild return link in the RN decision, and when determine rebuilding the sub-district and not being former persistent district, in the return link process of reconstruction, will rebuild the required information of return link and send to and rebuild the sub-district, rebuild the return link that the sub-district can be set up this RN according to this information, thereby not be the sight of former persistent district at the reconstruction sub-district of RN thereby make, realize the return link process of reconstruction, and then guaranteed the proper communication of the UE under the corresponding RN.In addition, in the return link process of reconstruction, RN can be (as rebuilding the sub-district before RN sends the reconstruction order before RN disposes the MBSFN subframe rebuilding the sub-district, send by the request of rebuilding), perhaps after RN finishes the MBSFN sub-frame configuration according to the indication of rebuilding the sub-district (sending to target DeNB) as finish message by reconstruction, when perhaps RN sets up the S1/X2 interface in request reconstruction sub-district, send to target DeNB with rebuilding the required information of return link.
Based on identical technical conceive, the embodiment of the invention also provides a kind of via node equipment and a kind of base station equipment.
As shown in Figure 6, the via node equipment that the embodiment of the invention provides can comprise: judge module 601, rebuilding module 602, wherein:
Rebuilding module 602 is used for when judge module 601 judges that rebuilding sub-districts is not the former persistent district of this via node, and the base station that the sub-district is rebuild in request is carried out return link and rebuild, and will rebuild the base station that the required information of return link sends to the reconstruction sub-district.This module also is used in judge module 601 when judging that rebuilding sub-districts is the former persistent district of this via node, initiates return link to the base station of former persistent district and rebuilds.
In the above-mentioned via node equipment, rebuilding module 602 can be carried on the required information of described reconstruction return link the reconstruction request message that is used to ask to rebuild return link and send; Perhaps, the configuration information of the MBSFN subframe that sends according to the base station that rebuilds the sub-district is finished after the configuration of MBSFN subframe, and the information-bearing that described reconstruction return link is required is finished message in reconstruction and sent; Perhaps, described reconstruction return link is required information-bearing sends in the message that is used for asking to set up the radio bearer connecting interface.
In the above-mentioned via node equipment, rebuilding module 602 also can be used for receiving the reconstruction order of the configuration information that carries the MBSFN subframe, or receive the message that is used to send reconfiguration information of the configuration information carry the MBSFN subframe, or receive the newly-built message of the configuration information that carries the MBSFN subframe; And the configuration of carrying out the MBSFN subframe according to the configuration information of described MBSFN subframe.
In the above-mentioned via node equipment, rebuilding module 602 can specifically be used for, and sends the request of reconstruction to the base station of described reconstruction sub-district, wherein carries the identification information that is used to represent to ask to rebuild return link; Perhaps, send the request of reconstruction, the sign of wherein carrying described via node, the described sign that is used to represent this via node request reconstruction return link of making an appointment that is designated to the base station of described reconstruction sub-district.
As shown in Figure 7, the base station equipment that the embodiment of the invention provides can comprise:
Rebuilding module 702, be used for according to interface module 701 receive described request and rebuild the required information of return link, carry out connection reconstruction at the terminal of described via node and covering thereof.
In the above-mentioned base station equipment, rebuilding module 702 can specifically be used to receive the reconstruction request message that is used to ask to rebuild return link that described via node sends, and wherein carries the required information of return link of rebuilding; Perhaps, receive the reconstruction that described via node sends and finish message after the configuration information of the MBSFN subframe that sends according to this base station is finished the configuration of MBSFN subframe, wherein carry the required information of reconstruction return link; Perhaps, receive the message that is used to ask to set up the radio bearer connecting interface, wherein carry the required information of return link of rebuilding.
In the above-mentioned base station equipment, the configuration information that rebuilding module 702 also can be used for also being used for the MBSFN subframe is carried on the reconstruction order or is carried on the message that is used for sending reconfiguration information, and sends to described via node by described interface module.
In the above-mentioned base station equipment, rebuilding module 702 can specifically be used for behind the interface of foundation and described via node, sends to the base station of the former persistent district of described via node by interface module 701 and rebuilds indication information.
In the above-mentioned base station equipment, interface module 701 can specifically be used for, receive the reconstruction request that described via node sends, wherein carry the identification information that is used to represent to ask to rebuild return link, the perhaps sign of via node, being designated of described via node are made an appointment is used to represent that this via node request rebuilds the sign of return link; Rebuilding module 702 can specifically be used for, and the described identification information that carries in the described reconstruction request that receives according to interface module 701 or the sign of described via node determine that this request is the request of rebuilding return link for via node.
In the above-mentioned base station equipment, the required information of described reconstruction return link that interface module 701 receives can comprise: the identity information of via node, the context of this via node, and the context of the terminal of this via node covering.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (17)
1. rebuild the method for return link in the junction network, it is characterized in that, may further comprise the steps:
When via node is rebuild return link, be not the former persistent district of this via node if rebuild the sub-district, then described via node request is rebuild the base station of sub-district and is carried out the return link reconstruction, and will rebuild the base station that the required information of return link sends to the reconstruction sub-district;
The base station that rebuilds the sub-district is carried out connection reconstruction according to the required information of described reconstruction return link at the terminal of described via node and covering thereof.
2. the method for claim 1 is characterized in that, also comprises:
If rebuilding the sub-district is the former persistent district of described via node, then described via node is initiated return link to the base station of former persistent district and is rebuild;
The information that the base station of described former persistent district is required according to the reconstruction return link of the described via node of its preservation is carried out connection reconstruction at the terminal of described via node and covering thereof.
3. method as claimed in claim 1 or 2 is characterized in that, described via node is carried on the required information of described reconstruction return link the reconstruction request message that is used for asking to rebuild return link and sends to the base station that rebuilds the sub-district;
Perhaps, the described via node information-bearing that described reconstruction return link is required is finished message in reconstruction and is sent to the base station that rebuilds the sub-district;
Perhaps, described via node is carried on the required information of described reconstruction return link the message that is used for asking to set up interface and sends to the base station that rebuilds the sub-district;
Perhaps, described via node is carried on the required information of described reconstruction return link to send to the base station that rebuilds the sub-district in the newly-built message.
4. method as claimed in claim 1 or 2, it is characterized in that, rebuild the process of return link, also comprise: the base station that rebuilds the sub-district is described via node configuration Multicast Broadcast Single Frequency Network MBSFN subframe, and the configuration information of MBSFN subframe is carried on rebuilds in the order, or be carried on the message that is used for sending reconfiguration information, or be carried on and send to described via node in the newly-built message.
5. method as claimed in claim 1 or 2, it is characterized in that, rebuild the process of return link, also comprise: behind the interface of foundation of the base station of described reconstruction sub-district and described via node, the base station of described reconstruction sub-district sends to the base station of the former persistent district of described via node and rebuilds indication information.
6. method as claimed in claim 1 or 2 is characterized in that, described via node request is rebuild the base station of sub-district and carried out the return link reconstruction, comprising:
Described via node sends the request of reconstruction to the base station of described reconstruction sub-district, wherein carries the identification information that is used to represent to ask to rebuild return link;
Perhaps, described via node sends the request of reconstruction to the base station of described reconstruction sub-district, the sign of wherein carrying described via node, the described sign that is used to represent this via node request reconstruction return link of making an appointment that is designated.
7. method as claimed in claim 1 or 2 is characterized in that, the required information of described reconstruction return link comprises: the identity information of via node, the context of this via node, and the context of the terminal of this via node covering.
8. a via node equipment is characterized in that, comprising:
Judge module is used for judging and rebuilding whether the sub-district is the former persistent district of this via node when via node is rebuild return link;
Rebuilding module is used for when described judge module judges that rebuilding the sub-district is not the former persistent district of this via node, and the base station that the sub-district is rebuild in request is carried out return link and rebuild, and will rebuild the base station that the required information of return link sends to the reconstruction sub-district.
9. equipment as claimed in claim 8 is characterized in that,
Described rebuilding module also is used for initiating return link to the base station of former persistent district and rebuilding when described judge module judges that rebuilding the sub-district is the former persistent district of this via node.
10. equipment as claimed in claim 8 or 9 is characterized in that,
Described rebuilding module specifically is used for the required information of described reconstruction return link, is carried on the reconstruction request message that is used to ask to rebuild return link and sends; Perhaps, described reconstruction return link is required information-bearing is finished the message transmission in reconstruction; Perhaps, described reconstruction return link is required information-bearing sends in the message that is used for asking to set up interface.
11. equipment as claimed in claim 8 or 9, it is characterized in that, described rebuilding module, also be used to receive the reconstruction order of the configuration information that carries the MBSFN subframe, or receive the message that is used to send reconfiguration information of the configuration information carry the MBSFN subframe, or receive the newly-built message of the configuration information that carries the MBSFN subframe; And the configuration of carrying out the MBSFN subframe according to the configuration information of described MBSFN subframe.
12. equipment is characterized in that as claimed in claim 8 or 9, described rebuilding module specifically is used for, and sends the request of reconstruction to the base station of described reconstruction sub-district, wherein carries the identification information that is used to represent to ask to rebuild return link; Perhaps, send the request of reconstruction, the sign of wherein carrying described via node, the described sign that is used to represent this via node request reconstruction return link of making an appointment that is designated to the base station of described reconstruction sub-district.
13. a base station equipment is characterized in that, comprising:
Interface module is used to receive the request of the reconstruction return link that via node sends, and rebuilds the required information of return link;
Rebuilding module, be used for according to described interface module receive described request and rebuild the required information of return link, carry out connection reconstruction at the terminal of described via node and covering thereof.
14. equipment as claimed in claim 13 is characterized in that,
Described interface module specifically is used to receive the reconstruction request message that is used to ask to rebuild return link that described via node sends, and wherein carries the required information of return link of rebuilding; Perhaps, message is finished in the reconstruction that receives described via node transmission, wherein carries the required information of return link of rebuilding; Perhaps, receive the message that is used to ask to set up interface, wherein carry the required information of return link of rebuilding.
15. equipment as claimed in claim 13 is characterized in that,
Described rebuilding module also is used for the configuration information of MBSFN subframe is carried on the reconstruction order or is carried on the message that is used for sending reconfiguration information, and sends to described via node by described interface module.
16. equipment as claimed in claim 13 is characterized in that, described rebuilding module also is used for, and behind the interface of foundation and described via node, sends the reconstruction indication information by described interface module to the base station of the former persistent district of described via node.
17. equipment as claimed in claim 13 is characterized in that,
Described interface module specifically is used for, receive the reconstruction request that described via node sends, wherein carry the identification information that is used to represent to ask to rebuild return link, the perhaps sign of via node, being designated of described via node are made an appointment is used to represent that this via node request rebuilds the sign of return link;
Described rebuilding module specifically is used for, and the described identification information that carries in the described reconstruction request that receives according to described interface module or the sign of described via node determine that this request is the request of rebuilding return link for via node.
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| CN201010145861.0A CN102215545B (en) | 2010-04-09 | 2010-04-09 | Method and device for re-establishing return link in relay network |
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| CN201010145861.0A CN102215545B (en) | 2010-04-09 | 2010-04-09 | Method and device for re-establishing return link in relay network |
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