CN102164385A - Switching method and relay node - Google Patents
Switching method and relay node Download PDFInfo
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- CN102164385A CN102164385A CN2010101122192A CN201010112219A CN102164385A CN 102164385 A CN102164385 A CN 102164385A CN 2010101122192 A CN2010101122192 A CN 2010101122192A CN 201010112219 A CN201010112219 A CN 201010112219A CN 102164385 A CN102164385 A CN 102164385A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The embodiment of the invention discloses a switching method and a relay node. The switching method comprises the following steps that: the relay node (RN) receives a switching request sent by a base station, wherein the switching request comprises bearing configuration information of a relay link and quality of service (QoS) information corresponding to a target access link; the RN establishes a relay link bearer according to the bearing configuration information of the relay link; and the RN generates the bearing re-configuration information of the target access link according to the QoS information corresponding to the target access link, and transmits the bearing re-configuration information of the target access link to user equipment through the base station. By the technical scheme of the embodiment of the invention, the switching of the user equipment between the relay node and the base station is realized.
Description
Technical field
The present invention relates to moving communicating field, particularly a kind of changing method and via node.
Background technology
Switching is the key technology of moving communicating field, is following portable terminal is set up reliable mobile communication between numerous mobile communication system or mobile cell basis.Switching can portable terminal be in mobile status following time ensure professional service quality (Quality of Service, hereinafter to be referred as: QoS), and make portable terminal when changing Network Access Point, still can keep its ongoing connection.Usually trigger the reason of switching and comprise wireless environment reason and professional reason of changes.Wherein, the wireless environment reason comprises radio link quality, received signal intensity and better sub-district etc. occurs that service reason comprises class of business, traffic carrying capacity and load control etc.
Long Term Evolution (Long Term Evolution, hereinafter to be referred as: LTE), be to carry out information interaction between the base station by X2 interface, with realize subscriber equipment (User Equipment, hereinafter to be referred as: UE) switch to the process of target BS from source base station.
At present, after introducing type one via node (type 1 relay node) among the LTE, can't effectively switch between the base station that type 1 RN and this RN adhere to.
Summary of the invention
The embodiment of the invention provides a kind of changing method and via node, in order to realize the switching of subscriber equipment between via node and base station.
The embodiment of the invention provides a kind of changing method, comprising:
Via node RN receives the handoff request that the base station sends, and described handoff request comprises the carrying configuration information of repeated link and the QoS information of target access link correspondence;
RN sets up the repeated link carrying according to the carrying configuration information of described repeated link;
RN passes through described base station with the carrying reconfiguration information of described target access link and sends to subscriber equipment according to the carrying reconfiguration information of the QoS information generation target access link of described target access link correspondence.
The embodiment of the invention provides a kind of changing method, comprising:
Via node RN sends handoff request to the base station;
Described RN receives the carrying reconfiguration information of the target access link of described base station transmission;
Described RN sends to subscriber equipment with the carrying reconfiguration information of described target access link.
The embodiment of the invention provides a kind of via node, comprising:
First receiver module is used to receive the handoff request that the base station sends, and described handoff request comprises the QoS information of repeated link carrying configuration information and target access link correspondence;
First sets up module, is used for setting up the repeated link carrying according to the carrying configuration information of described repeated link;
First generation module is used for the carrying reconfiguration information according to the QoS information generation target access link of described target access link correspondence;
First sending module is used for the carrying reconfiguration information of described target access link is sent to subscriber equipment through described base station.
The embodiment of the invention provides a kind of via node, comprising:
Second sending module is used for sending handoff request and the carrying reconfiguration information of target access link being sent to subscriber equipment to the base station;
Second receiver module is used to receive the carrying reconfiguration information of the described target access link that described base station sends.
In the embodiment of the invention, RN sends to UE with the carrying reconfiguration information of the target access link of base station or RN generation, thereby has realized the switching of UE between RN and eNB.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The flow chart of a kind of changing method that Fig. 1 provides for the embodiment of the invention;
The flow chart of the another kind of changing method that Fig. 2 provides for the embodiment of the invention;
The flow chart of the another kind of changing method that Fig. 3 provides for the embodiment of the invention;
The flow chart of the another kind of changing method that Fig. 4 provides for the embodiment of the invention;
The flow chart of the another kind of changing method that Fig. 5 provides for the embodiment of the invention;
The flow chart of the another kind of changing method that Fig. 6 provides for the embodiment of the invention;
The flow chart of the another kind of changing method that Fig. 7 provides for the embodiment of the invention;
The flow chart of the another kind of changing method that Fig. 8 provides for the embodiment of the invention;
The flow chart of the another kind of changing method that Fig. 9 provides for the embodiment of the invention;
The flow chart of the another kind of changing method that Figure 10 provides for the embodiment of the invention;
The structural representation of a kind of via node that Figure 11 provides for the embodiment of the invention;
The structural representation of the another kind of via node that Figure 12 provides for the embodiment of the invention;
The structural representation of the another kind of via node that Figure 13 provides for the embodiment of the invention;
The structural representation of a kind of base station that Figure 14 provides for the embodiment of the invention;
The structural representation of the another kind of base station that Figure 15 provides for the embodiment of the invention;
The structural representation of the another kind of base station that Figure 16 provides for the embodiment of the invention;
The structural representation of a kind of switched system that Figure 17 provides for the embodiment of the invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The flow chart of a kind of changing method that Fig. 1 provides for the embodiment of the invention, as shown in Figure 1, this method comprises:
In the present embodiment, the target access link is the link between UE and the RN.
In the present embodiment, UE can finish the foundation of target access link carrying according to the carrying reconfiguration information of this target access link after receiving the carrying reconfiguration information of target access link.In the present embodiment, after UE switches RN from the base station, can communicate with network side immediately by the repeated link carrying and the carrying of target access link of setting up.
In the present embodiment, step 103 can also be for being positioned at before the step 102.
In the technical scheme of present embodiment, after RN receives the handoff request of base station transmission, set up the repeated link carrying according to the carrying configuration information of the repeated link in the handoff request, generate the carrying reconfiguration information of target access link according to the QoS information of target access link correspondence, and the carrying reconfiguration information of target access link sent to UE through the base station, thereby UE is switched into RN from the base station.
The flow chart of the another kind of changing method that Fig. 2 provides for the embodiment of the invention, as shown in Figure 2, this method comprises:
Step 201, UE are to base station reporting measurement reports (Measurement Report).
UE can report the measurement result of sub-district, current place and neighbor cell by measurement report to the base station.
Switch decision is carried out according to measurement report in step 202, base station.
The base station can according to the RRM of measurement report and neighbor cell correspondence (Radio ResourceManagement, hereinafter to be referred as: RRM) information is carried out switch decision; Perhaps switch decision can be carried out according to the RRM information of measurement report, neighbor cell correspondence and the repeated link channel quality information of neighbor cell correspondence in the base station.
Owing in the present embodiment, need to realize that UE switches between the base station that RN and this RN adhere to, so adopt the repeated link channel quality information of neighbor cell to carry out switching judging, can make handoff decision result more accurate.
The base station is according to determining Target cell in the neighbor cell of above-mentioned switching judgment information from measurement report.In the present embodiment, Target cell is the sub-district of RN, and promptly UE switches to RN from the base station of adhering to.
Step 203, base station send handoff request (blHandoverRequest) to RN, and this handoff request comprises the carrying configuration information of repeated link and the QoS information of target access link correspondence.
The QoS information from base station of the carrying configuration information of repeated link and target access link correspondence is that UE institute supporting business distributes.
The QoS information of target access link correspondence can be used for RN and carries out the judgement whether the UE business is supported, and carries out the carrying configuration of accept business at access link.
Wherein, the QoS information of target access link correspondence can comprise following at least a:
Service type indication (QoS Class Indicator, hereinafter to be referred as: QCI), allocation priority (Allocation Retention Priority, hereinafter to be referred as: ARP), Maximum Bit Rate (Maximum BitRate, hereinafter to be referred as: MBR) with assurance bit rate (Guaranted Bit Rate, hereinafter to be referred as: GBR), UE cell-of-origin institute supporting business correspondence converge Maximum Bit Rate (Aggregate Maximum BitRate, hereinafter to be referred as: AMBR).
In the present embodiment, the QoS information of target access link correspondence also comprise on the target access link corresponding packet delay budget (Packet Delay Budget, hereinafter to be referred as: PDB) or also comprise PDB corresponding on the repeated link in the handoff request.
Wherein, the carrying configuration information of repeated link can comprise: the base station is the carrying configuration parameter at repeated link that UE institute supporting business distributes.
Step 204, RN set up the repeated link carrying according to the carrying configuration information of repeated link.
In switching the process of preparing, RN just can set up the repeated link carrying according to the carrying configuration information of repeated link, and after feasible switching was finished, UE can communicate with network side by the repeated link carrying immediately, avoid long time delay, improved user experience.
Step 205, RN generate the carrying reconfiguration information of target access link according to the QoS information of target access link correspondence.
In the present embodiment, when the QoS information of target access link correspondence comprised PDB corresponding on the target access link, RN can directly generate the carrying reconfiguration information of target access link according to the QoS information of target access link correspondence.
Perhaps, in the present embodiment, when also comprising on the repeated link corresponding PDB in the handoff request, RN can generate the carrying reconfiguration information of target access link according to corresponding PDB on the QoS information of target access link correspondence and the repeated link.Particularly, RN can be known PDB corresponding on the access link of source according to the QCI in the QoS information of target access link correspondence, PDB corresponding on PDB corresponding on the access link of source and the repeated link is subtracted each other corresponding PDB on the generation target access link, and generate the carrying reconfiguration information of target access link according to PDB corresponding on the QoS information of target access link correspondence and the target access link, wherein, the source access link is the link between UE and the base station.
In the present embodiment, because the mode that the base station adopts the centralized control distribution to carry out is set up the execution of the business on the two-hop link (comprising target access link and repeated link) QoS and is safeguarded, and the configuration of the service bearer of two-hop link is different from the service bearer configuration of one hop link, therefore, the base station sends to and can carry the corresponding QoS information of target access link carrying and the carrying configuration information of repeated link in the handoff request of RN in the step 203, and RN is the carrying reconfiguration information that generates access link according to the QoS information of target access link correspondence etc. in the step 206.
Step 206, RN send handover acknowledge message (blHandoverResponse) to the base station.
The information that this handover acknowledge message is carried can comprise the carrying reconfiguration information of target access link.In the present embodiment, the carrying reconfiguration information of target access link can be included in target in the handover acknowledge message in source transparent transmission container (The Target To The Source Transparent Container).
Further, this handover acknowledge message information of carrying can also comprise:
1)E-RAB?ID
This E-RAB ID is the Target cell corresponding EPS bearing identification of accepting business.
2) E-RAB refusal service lists (E-RAB Not Admitted List)
This E-RAB Not Admitted List is that Target cell is refused professional corresponding EPS carrying, specifically comprises EPS bearing identification symbol and refuses the reason that this EPS carrying inserts.
Step 207, base station send wireless resource control connection reconfiguration message (RRCConnectionReconfiguration) to UE, and this wireless resource control connection reconfiguration message comprises the carrying reconfiguration information of target access link.
In this step, the base station passes through UE by wireless resource control connection reconfiguration message with the carrying reconfiguration information of target access link, thereby makes that UE can be according to setting up the carrying of target access link between the carrying reconfiguration information of target access link and the RN.
Step 208, UE insert RN at random.
Step 209, UE send wireless resource control connection reconfiguration to RN and finish message (RRCConnectionReconfigurationComplete).
After execution in step 208 and the step 209, UE finishes switching.
In the present embodiment, step 205 can also be for being positioned at before the step 204.
In the technical scheme of present embodiment, the base station sends to carrying configuration information and the corresponding QoS information of target access link carrying that can carry repeated link in the handoff request of RN, therefore, switch to the RN process from the base station at UE, can set up the repeated link carrying according to the carrying configuration information of repeated link, and RN need generate the carrying reconfiguration information of target access link according to the corresponding QoS information of target access link carrying etc., thereby guaranteed that UE switches to the foundation of bearer service the RN process from the base station.
One embodiment of the invention provides a kind of changing method, and to be UE switch to the scene of target RN from source RN to present embodiment, and wherein source RN is attached under the source base station, and target RN is attached under the target BS.The flow chart of the another kind of changing method that Fig. 3 provides for the embodiment of the invention, as shown in Figure 3, this method comprises:
Step 301, UE are to source RN reporting measurement reports.
Step 302, source RN carry out switch decision according to measurement report.
Step 303, source RN send handoff request by source base station and target BS to target RN, and this handoff request comprises the carrying configuration information of repeated link and the QoS information of target access link correspondence.
Step 304, target RN set up the repeated link carrying according to the carrying configuration information of repeated link, generate the carrying reconfiguration information of target access link according to the QoS information of target access link correspondence.
Step 305, target RN will send handover acknowledge message to source RN by target BS and source base station.
Particularly, this handover acknowledge message can comprise the carrying reconfiguration information of target access link.
Step 306, source RN send wireless resource control connection reconfiguration message to UE, and this wireless resource control connection reconfiguration message comprises the carrying reconfiguration information of target access link.
UE can insert target RN according to setting up the access link carrying between the carrying reconfiguration information of target access link and the target RN.
Step 307, UE be from source RN attachment removal, and carry out synchronously with target RN.
Step 308, source RN are to the target RN status report that transmits Sequence Number.
Step 309, source RN transmit user face data to source base station.
The user face data that step 310, source base station reception sources RN transmit, and the user face data that source RN is transmitted carries out buffer memory.
Step 311, UE insert target RN at random.
Step 312, source base station are transmitted user face data to target RN.
In the present embodiment, step 312 can also be for being positioned at before the step 311.
Step 313, UE send wireless resource control connection reconfiguration to target RN and finish message (RRCConnectionReconfigurationComplete).
Thereby UE finishes the handoff procedure from source RN to target RN.
Step 314, target RN send switch acknowledgment message (blHandoverConfirm) to target eNB.
Step 315, target BS send UE context release message to source base station.
Step 316, source base station discharge the user face data of buffer memory.
Step 317, source base station send UE context release message to source RN.
Step 318, source RN discharge resource.
In the technical scheme of present embodiment, source base station carries out buffer memory with the user face data that the source RN that receives transmits, and switches to from source RN the target RN process at UE, and further the user face data with buffer memory is transmitted to target RN by target BS.When UE successfully when source RN switches to target RN, source base station discharges the user face data of buffer memory again, avoided that UE fails when switching to target RN in handoff procedure, source RN needs by the Un interface user face data to be returned to source base station again, and be transmitted to source RN by source base station, the user face data that causes has transmitted twice problem on the Un interface, thereby has saved the interface-free resources on the Un interface.
The flow chart of the another kind of changing method that Fig. 4 provides for the embodiment of the invention, as shown in Figure 4, this method comprises:
In the present embodiment, the target access link is the link between UE and the base station.
In the technical scheme of present embodiment, RN receives the carrying reconfiguration information of the target access link of base station transmission after the base station sends handoff request, and the carrying reconfiguration information of target access link is sent to UE, thereby UE is switched into the base station from RN.
The flow chart of the another kind of changing method that Fig. 5 provides for the embodiment of the invention, as shown in Figure 5, this method comprises:
Step 501, RN send handoff request to the base station.
Step 502, RN receive the carrying reconfiguration information of the target access link of base station transmission, and the carrying reconfiguration information of this target access link is generated by the QoS information of base station according to the target access link correspondence of knowing in advance.
In the present embodiment, the target access link is the link between UE and the base station.
Step 503, RN send to UE with the carrying reconfiguration information of this target access link.
In the technical scheme of present embodiment, RN is after the base station sends handoff request, the base station generates the carrying reconfiguration information of target access link according to the QoS information of the target access link correspondence of knowing in advance, and the carrying reconfiguration information of target access link is sent to UE, thereby UE is switched into the base station from RN by RN.
The flow chart of the another kind of changing method that Fig. 6 provides for the embodiment of the invention, as shown in Figure 6, this method comprises:
Step 601, UE are to the RN reporting measurement reports.
UE can report the measurement result of sub-district, current place and neighbor cell by measurement report to RN.
Step 602, RN send handoff request (blHandoverRequire) to the base station, comprise measurement report in this handoff request.
Switch decision is carried out according to measurement report in step 603, base station.
Particularly, switch decision can be carried out according to the RRM information of measurement report and neighbor cell correspondence in the base station; Perhaps switch decision can be carried out according to the RRM information of measurement report, neighbor cell correspondence and the repeated link channel quality information of neighbor cell correspondence in the base station.
Owing in the present embodiment, need to realize that UE switches between the base station that RN and this RN adhere to, so adopt the repeated link channel quality information of neighbor cell to carry out switching judging, can make handoff decision result more accurate.
Step 604, base station generate the carrying configuration information of target access link according to the QoS information of the target access link correspondence of knowing in advance.
In the present embodiment, the QoS information of target access link correspondence can comprise following at least a: QCI, ARP, MBR, GBR and AMBR.
In the present embodiment, because the mode that the base station adopts the centralized control distribution to carry out is carried out QoS foundation to the business on the two-hop link and is safeguarded, therefore when the UE that is attached to RN is linked into network, the base station just can be known the QoS information of the target access link correspondence of this UE institute supporting business correspondence in advance, that is to say that the base station can know the QoS information of the target access link correspondence that the carrying configuration information that generates the target access link is required in advance.Therefore, RN need not to carry the QoS information of target access link correspondence in the present embodiment step 602 in the handoff request that the base station sends.
Step 605, base station send switching command (blHandoverCommand) to RN, and this switching command comprises the carrying reconfiguration information of target access link.
Particularly, the carrying reconfiguration information of target access link can comprise: be the accept business carrying relevant parameter of the target access link that reconfigures of Target cell.
Step 606, RN send wireless resource control connection reconfiguration message (RRCConnectionReconfiguration) to UE, and this wireless resource control connection reconfiguration message comprises the carrying reconfiguration information of target access link.
Particularly, UE can be according to setting up the carrying of target access link between the carrying reconfiguration information of target access link and the base station.
Step 607, UE be access base station at random.
Step 608, UE send wireless resource control connection reconfiguration to the base station and finish message (RRCConnectionReconfigurationComplete).
After execution in step 607 and the step 608, UE finishes switching.
In the present embodiment, can also comprise after the step 601 and before the step 602: RN carries out preliminary ruling according to the measurement result that UE reports, and when RN inquires when having service quality than better sub-district, cell-of-origin in the measurement report, judgement is switched.Execution in step 602 and step 603 are carried out conclusive judgement by the base station according to measurement report in step 603 again.
In the technical scheme of present embodiment, because the mode that the base station adopts the centralized control distribution to carry out is carried out QoS foundation to the business on the two-hop link and is safeguarded, therefore when the UE that is attached to RN is linked into network, the base station just can be known the QoS information of the target access link correspondence of this UE institute supporting business correspondence in advance, need not RN again by the QoS information of Un interface to base station transmission target access link correspondence, thus the interface-free resources of having saved the Un interface.In addition; because the base station can also be known the contextual information that user security is relevant in advance; the contextual information that this user security is relevant can comprise encryption/protection algorithm integrallty that the user supports etc.; therefore need not RN and send the relevant contextual information of user security by the Un interface to the base station again, thus the interface-free resources of further having saved the Un interface.
The flow chart of the another kind of changing method that Fig. 7 provides for the embodiment of the invention, as shown in Figure 7, this method comprises:
Step 701, UE are to the RN reporting measurement reports.
UE can report the measurement result of sub-district, current place and neighbor cell by measurement report to RN.
Step 702, RN carry out switch decision according to measurement report.
Step 703, RN send handoff request (blHandoverRequire) to the base station.
Step 704 to step 708 can repeat no more referring to the step 604 among the embodiment of Fig. 6 to step 608 herein.
In the present embodiment, can also comprise after the step 701 and before the step 702: RN carries out preliminary switch decision according to the measurement result that UE reports, and when RN inquires when having service quality than better sub-district, cell-of-origin in the measurement report, judgement is switched.Execution in step 702 and step 703 are carried out conclusive judgement by the base station according to the switching judgment information measurement report in step 703 again.
In the present embodiment, carry out switch decision according to measurement report, need not RN and passed through the Un interface and send measurement report, thereby saved the interface-free resources of Un interface to the base station by RN.
The flow chart of the another kind of changing method that Fig. 8 provides for the embodiment of the invention, as shown in Figure 8, this method comprises:
In the present embodiment, the source access link is the link between UE and the RN.
In the present embodiment, the target access link is the link between UE and the base station.
In the technical scheme of present embodiment, RN is after the base station sends handoff request, the base station generates the carrying reconfiguration information of target access link according to the QoS information of the institute of the UE in handoff request supporting business correspondence, and the carrying reconfiguration information of target access link is sent to UE, thereby UE is switched into the base station from RN by RN.
The flow chart of the another kind of changing method that Fig. 9 provides for the embodiment of the invention, as shown in Figure 9, this method comprises:
Switch decision is carried out according to measurement report in step 903, base station.
In this step, UE is known the carrying configuration information that continues employing source access link after receiving wireless resource control connection reconfiguration message.
In the present embodiment, can also comprise after the step 901 and before the step 902: RN carries out preliminary ruling according to the measurement result that UE reports, and when RN inquires when having service quality than better sub-district, cell-of-origin in the measurement report, judgement is switched.Execution in step 902 and step 903 are carried out conclusive judgement by the base station according to measurement report in step 903 again.
In the technical scheme of present embodiment, when base station after corresponding PDB determines the carrying configuration information of source access link reshuffled on according to the QoS information of the UE institute supporting business correspondence that comprises in the handoff request that receives and source access link, generate the carrying reconfiguration information of target access link according to the QoS information of UE institute supporting business correspondence, and the carrying reconfiguration information of target access link sent to UE by RN, thereby UE is switched into the base station from RN.When the base station according to the QoS information of the UE institute supporting business correspondence that comprises in the handoff request that receives and source access link on corresponding PDB judge when need not the carrying configuration information of target access link reshuffled, can directly return handover acknowledge by RN to UE, make the carrying configuration information access base station of UE, thereby UE is switched into the base station from RN according to the source access link.
The flow chart of the another kind of changing method that Figure 10 provides for the embodiment of the invention, as shown in figure 10, this method comprises:
UE can report the measurement result of sub-district, current place and neighbor cell by measurement report to RN.
In the technical scheme of present embodiment, carry out switch decision according to measurement report, need not RN and passed through the Un interface and send measurement report, thereby saved the interface-free resources of Un interface to the base station by RN.
The structural representation of a kind of via node that Figure 11 provides for the embodiment of the invention, as shown in figure 11, this via node comprises that first receiver module 11, first sets up module 12, first generation module 13 and first sending module 14.
Further, when the QoS information of target access link correspondence comprised PDB corresponding on the target access link, first generation module 13 can directly generate the carrying reconfiguration information of target access link according to the QoS information of target access link correspondence.
Further, when comprising PDB corresponding on the repeated link in the handoff request that first receiver module 11 sends, first generation module 13 can generate the carrying reconfiguration information of target access link according to PDB corresponding on the QoS information of target access link correspondence and the repeated link.
After the via node of present embodiment receives the handoff request of base station transmission, set up the repeated link carrying according to the carrying configuration information of the repeated link in the handoff request, generate the carrying reconfiguration information of target access link according to the QoS information of target access link correspondence, and the carrying reconfiguration information of target access link sent to UE through the base station, thereby UE is switched into via node from the base station.
The structural representation of the another kind of via node that Figure 12 provides for the embodiment of the invention, as shown in figure 12, this via node comprises: second sending module 21 and second receiver module 22.
Second sending module 21 sends handoff request to the base station.Second receiver module 22 receives the carrying reconfiguration information of the target access link of base station transmission.Second sending module 21 sends to UE with the carrying reconfiguration information of the target access link that second receiver module 22 receives.
The via node of present embodiment is after the base station sends handoff request, receive the carrying reconfiguration information of the target access link of base station transmission, via node sends to UE with the carrying reconfiguration information of the target access link that the base station that receives sends, thereby UE is switched into the base station from via node.
The structural representation of the another kind of via node that Figure 13 provides for the embodiment of the invention, as shown in figure 13, this via node comprises: second sending module 21 and second receiver module 22.
Second sending module 21 sends handoff request to the base station.Second receiver module 22 receives the carrying reconfiguration information of the target access link of base station transmission, and the carrying reconfiguration information of this target access link is generated by the QoS information of base station according to the target access link correspondence of knowing in advance.Second sending module 21 sends to UE with the carrying reconfiguration information of target access link.
Further, second receiver module 22 also can receive the measurement report that UE reports, and second sending module 21 can also comprise the measurement report that UE reports to the handoff request that the base station sends, and carries out switch decision for the base station according to measurement report.
Further, via node can also comprise the first switch decision module 23.The first switch decision module 23 can be carried out switch decision according to the measurement report that second receiver module 22 receives.The switch decision that the first switch decision module 23 is carried out can be preliminary switch decision, after the first switch decision module 23 is carried out preliminary switch decision, send the handoff request that comprises measurement report by second sending module 21 to the base station, carry out final switch decision according to measurement report for the base station.
The via node of present embodiment is after the base station sends handoff request, the base station generates the carrying reconfiguration information of target access link according to the QoS information of the target access link correspondence of knowing in advance, via node sends to UE with the carrying reconfiguration information of the target access link that the base station that receives sends, thereby UE is switched into the base station from via node.
In the present embodiment, the handoff request that sends to the base station of second sending module 21 can comprise corresponding PDB on the carrying configuration information of QoS information, source access link of UE institute supporting business correspondence and the source access link.Second receiver module 22 can receive the carrying reconfiguration information of the target access link of base station transmission, after the carrying reconfiguration information of this target access link is determined the carrying configuration information of source access link reshuffled according to PDB corresponding on the QoS information of UE institute supporting business correspondence and the source access link by the base station, generate according to the QoS information of UE institute supporting business correspondence.Second sending module 21 sends to UE with the carrying reconfiguration information of target access link.
The via node of present embodiment is after the base station sends handoff request, the base station generates the carrying reconfiguration information of target access link according to the QoS information of the institute of the UE in handoff request supporting business correspondence, via node sends to UE with the carrying reconfiguration information of the target access link that the base station that receives sends, thereby UE is switched into the base station from RN.
The structural representation of a kind of base station that Figure 14 provides for the embodiment of the invention, as shown in figure 14, this base station comprises: the 4th sending module 41 and the 4th receiver module 42.
The 4th sending module 41 sends handoff request to RN, this handoff request comprises the carrying configuration information of repeated link and the QoS information of target access link correspondence, sets up repeated link carrying according to the carrying configuration information of repeated link and generates the carrying reconfiguration information of target access link and the carrying reconfiguration information of target access link is sent to the 4th receiver module 42 according to the QoS information of target access link correspondence for RN.The carrying of the 4th receiver module 42 receiving target access link is reshuffled.The 4th sending module 41 is reshuffled the carrying of the target access link of the 4th receiver module 42 receptions and is sent to UE.
RN in the present embodiment can adopt the RN among the embodiment of Figure 11.
The base station of present embodiment sends handoff request to via node, set up the repeated link carrying for via node according to the carrying configuration information of the repeated link in the handoff request, generate the carrying reconfiguration information of target access link according to the QoS information of target access link correspondence, the base station sends to UE with the carrying reconfiguration information of the target access link that the via node that receives sends, thereby UE is switched into via node from the base station.
The structural representation of the another kind of base station that Figure 15 provides for the embodiment of the invention, as shown in figure 15, this base station comprises: the 5th receiver module 51, second generation module 52 and the 5th sending module 53.
The 5th receiver module 51 receives the handoff request that RN sends.After second generation module 52 receives the handoff request of RN transmission at the 5th receiver module 51, generate the carrying reconfiguration information of target access link according to the QoS information of the target access link correspondence of knowing in advance.The 5th sending module 53 sends to UE with the carrying reconfiguration information of target access link through RN.
RN in the present embodiment can adopt the RN in embodiment illustrated in fig. 13.
After the base station of present embodiment receives the handoff request of via node transmission, generate the carrying reconfiguration information of target access link according to the QoS information of the target access link correspondence of knowing in advance, and the carrying reconfiguration information of target access link sent to UE through RN, thereby UE is switched into the base station from RN.
The structural representation of the another kind of base station that Figure 16 provides for the embodiment of the invention, as shown in figure 16, this base station comprises: the 6th receiver module 61, first judge module the 62, the 3rd generate module 63 and the 6th sending module 64.
The 6th receiver module 61 receives the handoff request that RN send, and this handoff request comprises corresponding PDB on the carrying configuration information of QoS information, source access link of UE institute supporting business correspondence and the source access link.First judge module 62 judges whether the carrying configuration information of source access link is reshuffled according to PDB corresponding on the QoS information of UE institute supporting business correspondence and the source access link.The 3rd generates module 63 when first judge module 62 after corresponding PDB determines the carrying configuration information of source access link reshuffled on according to the QoS information of UE institute supporting business correspondence and source access link, according to the carrying reconfiguration information of the QoS information generation target access link of UE institute supporting business correspondence.The 6th sending module 64 sends to UE with the carrying reconfiguration information of target access link through RN.
RN in the present embodiment can adopt the RN in embodiment illustrated in fig. 13.
After the base station of present embodiment receives the handoff request of RN transmission, generate the carrying reconfiguration information of target access link according to the QoS information of the institute of the UE in handoff request supporting business correspondence, and the carrying reconfiguration information of the target access link that receives sent to UE through RN, thereby UE is switched into the base station from RN.
The structural representation of a kind of switched system that Figure 17 provides for the embodiment of the invention, as shown in figure 17, this switched system comprises via node 1 and base station 2.
Via node 1 can adopt the via node among the embodiment of Figure 11, and the base station among the embodiment of Figure 14 can be adopted in base station 2.
Perhaps, via node 1 can adopt the via node in embodiment illustrated in fig. 13, and the base station among the embodiment of Figure 15 can be adopted in base station 2.
Perhaps, via node 1 can adopt the via node in embodiment illustrated in fig. 13, and the base station among the embodiment of Figure 16 can be adopted in base station 2.
Switched system in the present embodiment can be realized the switching of UE between via node and base station.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (16)
1. a changing method is characterized in that, comprising:
Via node RN receives the handoff request that the base station sends, and described handoff request comprises the carrying configuration information of repeated link and the service quality QoS information of target access link correspondence;
RN sets up the repeated link carrying according to the carrying configuration information of described repeated link;
RN passes through described base station with the carrying reconfiguration information of described target access link and sends to subscriber equipment according to the carrying reconfiguration information of the QoS information generation target access link of described target access link correspondence.
2. method according to claim 1 is characterized in that, the QoS information of described target access link correspondence comprises grouping time-delay budget PDB corresponding on the target access link.
3. method according to claim 1 is characterized in that, described handoff request also comprises PDB corresponding on the repeated link;
Described RN comprises according to the carrying reconfiguration information that the QoS information of described target access link correspondence generates the target access link: described RN generates the carrying reconfiguration information of described target access link according to corresponding PDB on the QoS information of described target access link correspondence and the described repeated link.
4. method according to claim 1 is characterized in that described RN comprises target RN;
Described method also comprises:
Source base station buffer memory that described target RN reception sources RN adheres to and the user face data that sends.
5. a changing method is characterized in that, comprising:
Via node RN sends handoff request to the base station;
Described RN receives the carrying reconfiguration information of the target access link of described base station transmission;
Described RN sends to subscriber equipment with the carrying reconfiguration information of described target access link.
6. method according to claim 5 is characterized in that, the carrying reconfiguration information of described target access link is generated by the service quality QoS information of described base station according to the target access link correspondence of knowing in advance.
7. method according to claim 5 is characterized in that, described handoff request comprises corresponding grouping time-delay budget PDB on the carrying configuration information of QoS information, source access link of UE institute supporting business correspondence and the source access link;
After the carrying reconfiguration information of described target access link is determined the carrying configuration information of described source access link reshuffled according to corresponding PDB on the QoS information of described UE institute supporting business correspondence and the described source access link by described base station, generate according to the QoS information of described UE institute supporting business correspondence.
8. according to the arbitrary described method of claim 5 to 7, it is characterized in that described handoff request also comprises the measurement report of user equipment to report; Described RN is after the base station sends handoff request, and described method also comprises: switch decision is carried out according to described measurement report in described base station.
9. method according to claim 8 is characterized in that, described RN is before the base station sends handoff request, and described method also comprises:
Described RN receives the measurement report of user equipment to report;
Described RN carries out preliminary switch decision according to described measurement report.
10. a via node is characterized in that, comprising:
First receiver module is used to receive the handoff request that the base station sends, and described handoff request comprises the service quality QoS information of repeated link carrying configuration information and target access link correspondence;
First sets up module, is used for setting up the repeated link carrying according to the carrying configuration information of described repeated link;
First generation module is used for the carrying reconfiguration information according to the QoS information generation target access link of described target access link correspondence;
First sending module is used for the carrying reconfiguration information of described target access link is sent to subscriber equipment through described base station.
11. via node according to claim 10 is characterized in that, the QoS information of described target access link correspondence comprises grouping time-delay budget PDB corresponding on the target access link.
12. via node according to claim 10 is characterized in that, described handoff request also comprises PDB corresponding on the repeated link;
Described first generation module is used for generating the carrying reconfiguration information of described target access link according to PDB corresponding on the QoS information of described target access link correspondence and the described repeated link.
13. a via node is characterized in that, comprising:
Second sending module is used for sending handoff request and the carrying reconfiguration information of target access link being sent to subscriber equipment to the base station;
Second receiver module is used to receive the carrying reconfiguration information of the described target access link that described base station sends.
14. via node according to claim 13 is characterized in that, the carrying reconfiguration information of described target access link is generated by the service quality QoS information of described base station according to the target access link correspondence of knowing in advance.
15. via node according to claim 13 is characterized in that, handoff request comprises corresponding grouping time-delay budget PDB on the carrying configuration information of QoS information, source access link of UE institute supporting business correspondence and the source access link;
After the carrying reconfiguration information of described target access link is determined the carrying configuration information of described source access link reshuffled according to corresponding PDB on the QoS information of described UE institute supporting business correspondence and the described source access link by described base station, generate according to the QoS information of described UE institute supporting business correspondence.
16., it is characterized in that second receiver module also is used to receive the measurement report of user equipment to report according to the arbitrary described via node of claim 13 to 15; Then described handoff request also comprises described measurement report, carries out switch decision for described base station according to described measurement report.
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| CN201010112219.2A CN102164385B (en) | 2010-02-21 | 2010-02-21 | Switching method and relay node |
| PCT/CN2011/071112 WO2011100894A1 (en) | 2010-02-21 | 2011-02-21 | Switching method and relay node |
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| CN201010112219.2A CN102164385B (en) | 2010-02-21 | 2010-02-21 | Switching method and relay node |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102164385B (en) | 2015-01-07 |
| WO2011100894A1 (en) | 2011-08-25 |
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