CN104936163A - Dual-connectivity secondary evolved node B adding method, device and evolved node B - Google Patents
Dual-connectivity secondary evolved node B adding method, device and evolved node B Download PDFInfo
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- CN104936163A CN104936163A CN201510338674.7A CN201510338674A CN104936163A CN 104936163 A CN104936163 A CN 104936163A CN 201510338674 A CN201510338674 A CN 201510338674A CN 104936163 A CN104936163 A CN 104936163A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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Abstract
The invention discloses a dual-connectivity secondary evolved node B adding method, a dual-connectivity secondary evolved node B adding device and the evolved node B; multiple candidate SeNB (secondary evolved nodes B) are optimally selected and added in a long-term evolution communication system. A master evolved node N obtains secondary cells of the candidate secondary evolved nodes B, secondary evolved node cell B load information and/or user equipment UE velocity information and secondary cell type of the secondary evolved node B, filters the secondary cells of the candidate secondary evolved nodes B and ranks the filtered the secondary cells of the secondary evolved nodes B on basis of priorities; the master evolved node B selects one or more secondary cells of the secondary evolved nodes B from the priority-ranked the secondary cells of the secondary evolved nodes B as target secondary evolved nodes B and transmits request messages to the one or more target secondary evolved nodes B to realize additions of subsequent secondary evolved nodes B. According to invention, the SeNB is optimally selected according to SeNB resource status information and/or UE velocity information, so that E-RAB (Evolved Universal Mobile Telecommunications System Terrestrial Radio Access Network Radio Access Bearer) can obtain the best service in the SeNB, thereby improving the user experience; meanwhile, the SeNB addition flow is performed to reduce SeNB addition time delays.
Description
Technical field
The present invention relates in Long Term Evolution (LTE:Long Term Evolution) communication system, dual link prothetic group station (SeNB:Secondary eNB, be also called auxiliary evolved node B) preferably add problem, preferably add problem when especially there is some candidate SeNB.
Background technology
Dual link (DC:Dual Connectivity) make subscriber equipment (UE:User Equipment) can with two base stations (eNB:Evolved Node B, also known as evolved node B) set up and keep connecting, wherein, UE and dominant base (MeNB:Master Evolved Node B, also known as main evolved Node B) set up chain of command and connect, and set up user face with SeNB and be connected.By dual link, chain of command and user face can realize being separated, thus improve the performance of system, the especially performance of heterogeneous network.
The idiographic flow that SeNB adds is as follows:
When 1.MeNB determines that request SeNB is evolved universal mobile telecommunications system land radio access web RAB (E-RAB:Evolved Universal Mobile Telecommunications SystemTerrestrial Radio Access Network Radio Access Bearer) distributing radio resource, send prothetic group station to SeNB and add request (SeNB Addition Request), and carry auxiliary cell set (SCG:Secondary Cell Group) configuration information (SCG-Config), with instruction E-RAB feature (E-RAB parameter, transport network layer (TNL:Transport Network Layer) address information).In addition, MeNB indicates main plot to configure (MCG:Master Cell Group) and whole UE ability in SCG-Config.MeNB provides up-to-date request to add the measurement result of SCG community;
If 2. RRM (the RRM:Radio Resource Management) module of SeNB can receive resource request, it just distributes corresponding Radio Resource and corresponding transport network resources.SeNB triggers Stochastic accessing to perform the synchronous of SeNB radio-resource-configuration.SeNB replys prothetic group station to MeNB and adds request-reply message (SeNB Addition Request Acknowledge), and carries the new Radio Resource of SCG in SCG-Config;
If 3. MeNB accepts new configuration, MeNB sends wireless heterogeneous networks to UE and connects reprovision (RRCConnection Reconfiguration) message, carries the new radio-resource-configuration of the SCG of corresponding SCG-Config;
The new configuration of 4.UE application, and reply wireless heterogeneous networks and connect reprovision and complete (RRC ConnectionReconfiguration Complete) message;
5.MeNB completes (SeNB Reconfiguraton Complete) message informing SeNB UE to SeNB transmission prothetic group station reprovision and have successfully completed reconstitution process;
6., by Stochastic accessing (RA:Random Access) process, UE performs the synchronous of SeNB;
7., for SCG carrying, MeNB takes action according to the load characteristic of corresponding E-RAB and reduces to activate due to dual link the service disconnection caused.MeNB to transmit Sequence Number state transmission (SN StatusTransfer) message to SeNB, carries uplink and downlink PDCP (PDCP:Packet DataConvergence Protocol) sequence number and Hyper Frame Number (HFN:Hyper Frame Number) state;
8. data retransmission.Data from gateway (SGW:Serving Gateway) arrive MeNB, are then forwarded to SeNB by MeNB;
9.MeNB sends E-RAB amendment instruction (E-RAB Modification Indication) information updating user plane path to Mobility Management Entity (MME:Mobility Management Entity);
10.MME and SGW realizes bearing modification alternately;
11.SGW sends to MeNB and terminates mark (End Marker) grouping, and is forwarded to SeNB via MeNB;
12.MME sends E-RAB amendment to MeNB and confirms (E-RAB Modification Confirm) message.
But current SeNB adds flow process and does not consider SeNB optimal selection problem.Especially when there is some candidate SeNB, if selecting the SeNB added to be in higher load condition, being difficult to the service quality ensureing E-RAB by causing SeNB, thus affecting Consumer's Experience.
Summary of the invention
In view of the above deficiency of prior art, the invention provides a kind of SeNB adding method and device thereof.Its core concept is as follows: MeNB obtains the information of preset filtration and selection algorithm needs from correspondent entity; MeNB obtains candidate SeNB; The SeNB that MeNB is ineligible according to filter algorithm filtering; MeNB is according to selection algorithm preferred SeNB from candidate SeNB; MeNB adds strategy according to preset SeNB to initiate and performs SeNB adding procedure.
The present invention solves the problems of the technologies described above adopted technical scheme:
A kind of dual link prothetic group station adding method, realize when there is some candidate SeNB in Long Term Evolution communication system preferably adding, described method comprises:
Dominant base obtains candidate prothetic group Zhan Fu community, the auxiliary cell load information in prothetic group station and/or the auxiliary cell type of user equipment (UE) velocity information and prothetic group station, and described candidate's prothetic group Zhan Fu community is filtered, then prioritization is carried out to the described prothetic group Zhan Fu community after filtration;
Dominant base selects one or more prothetic group Zhan Fu community as target prothetic group station from the described prothetic group Zhan Fu community after prioritization, then sends a request message to realize follow-up prothetic group station to described one or more target prothetic group station and adds.
Further, described dominant base obtains candidate prothetic group Zhan Fu community, comprising:
Dominant base obtains auxiliary cell set SCG and configures, and then sends radio resource control RRC to UE and connects reallocation message, and described RRC connects reallocation message and carries measurement configuration;
UE measures auxiliary community according to described measurement configuration, and then send measurement report message to described dominant base, described measurement report message carries the auxiliary cell information in prothetic group station meeting report condition.
Further, described dominant base obtains candidate prothetic group Zhan Fu community, also comprises:
Dominant base obtains geographical location information and the covering radius information of auxiliary cell set SCG configuration and described auxiliary cell set Zhong Fu community, then obtain the geographical location information of UE, and export candidate prothetic group Zhan Fu community according to the geographical location information of described auxiliary community and the geographical location information of covering radius information and described UE.
Further, described dominant base obtains UE velocity information, comprising:
Dominant base sends a request message to UE and asks described UE report speed information; UE replys to described dominant base the velocity information that response message reports described UE.
Further, described dominant base obtains UE velocity information, also comprises:
Dominant base obtains the historical information of UE, according to community and the residence time calculating average residence time of described UE in community of the visit of described historical information, then estimates the speed of described UE according to described average residence time.
Further, described prothetic group Zhan Fu community to be filtered, comprising:
Dominant base filters described prothetic group Zhan Fu community according to the resource state information obtained, and filtering resources occupation rate reaches the prothetic group Zhan Fu community of certain threshold value;
And/or dominant base filters described prothetic group Zhan Fu community according to the UE velocity information obtained, when described UE speed is fast state, filtering cell type is the prothetic group Zhan Fu community of verysmall or small.
Further, described prioritization is carried out to prothetic group Zhan Fu community, comprising:
Dominant base carries out prioritization according to the Reference Signal Received Power RSRP in measurement report and/or Reference Signal Received Quality RSRQ to prothetic group Zhan Fu community;
Dominant base carries out prioritization according to the resource utilization in resource status renewal to prothetic group Zhan Fu community;
Dominant base calculates weighted average weight according to ranking results, then carries out prioritization according to described average weight to prothetic group Zhan Fu community.
Further, described prothetic group station is added, and comprising:
Dominant base selects one or more prothetic group Zhan Fu community from high to low according to priority from the candidate's prothetic group Zhan Fu community after prioritization, then sends prothetic group station to described one or more prothetic group station and adds request message;
Dominant base adding the prothetic group Zhan Fu community of request-reply message from replying prothetic group station, selecting the prothetic group Zhan Fu community that priority is the highest, then send RRC connection reallocation message to UE after collecting described one or more prothetic group station reply response message;
Dominant base discharges the context of described UE at described prothetic group station to not selected but that request-reply message is added at reply prothetic group station transmission prothetic group station, prothetic group station releasing request message.
This method on the basis of existing technology, according to SeNB resource state information or/and the preferred SeNB of UE velocity information, makes E-RAB can obtain best service at SeNB, thus improves the experience of user; Meanwhile, add flow process by executed in parallel SeNB, reduce SeNB and add time delay.
Accompanying drawing explanation
Fig. 1 is overall process schematic diagram of the present invention.
Fig. 2 is the process schematic diagram that serial SeNB adds.
Fig. 3 is the process schematic diagram that parallel SeNB adds.
Fig. 4 is the process schematic diagram that MeNB obtains SeNB resource state information.
Fig. 5 is the process schematic diagram that MeNB obtains UE velocity information.
Fig. 6 is the process schematic diagram that MeNB obtains SeNB cell type.
Fig. 7 is MeNB carries out the filter algorithm of filtering process schematic diagram to SeNB.
Fig. 8 is the process schematic diagram of the selection algorithm of the preferred SeNB of MeNB.
Fig. 9 is the process schematic diagram that MeNB obtains candidate SeNB.
Embodiment
With embodiment, working of an invention step is described below.
Embodiment 1:
Overall process of the present invention as shown in Figure 1.
101st step: MeNB obtains corresponding information according to preset decision parameter from correspondent entity.If select SeNB according to resource status, then MeNB and SeNB obtains the resource state information of SeNB alternately; If select SeNB according to UE speed, then the mutual acquisition speed information of MeNB and UE, goes to the 102nd step;
102nd step: MeNB obtains the SeNB of candidate, goes to the 103rd step;
103rd step: MeNB filters the candidate SeNB obtained according to filter algorithm, and filtering does not meet the SeNB of prerequisite, goes to the 104th step;
104th step: MeNB is according to selection algorithm preferred SeNB from the candidate SeNB after filtration; If preset strategy is parallel interpolation, then select the SeNB satisfied condition; Add if preset strategy is serial, then select the SeNB that priority is the highest, go to the 105th step;
105th step: MeNB adds strategy according to preset SeNB to initiate and performs SeNB to add flow process.If preset strategy is parallel interpolation, then initiate to add flow process to all SeNB satisfied condition, then, MeNB is according to selection algorithm preferred SeNB from the successful SeNB of interpolation, and send RRC connection reprovision to UE, meanwhile, initiate release flow process to other not selected SeNB.Add if preset strategy is serial, then initiate to add flow process to the preferred SeNB out of the 4th step, if add unsuccessfully, then select the SeNB of suboptimum to initiate to add, the like.
Embodiment 2:
Serial SeNB of the present invention adds process as shown in Figure 2.This embodiment is added unsuccessfully with the first prothetic group station, then adds the second prothetic group station and successfully for example is described.
201st step: the information of the corresponding parameter that MeNB acquisition algorithm and judgement need, goes to the 201st step;
202nd step: MeNB obtains candidate SeNB, goes to the 203rd step;
203rd step: MeNB filters the candidate SeNB obtained according to filter algorithm, goes to the 204th step;
204th step: MeNB, according to selection algorithm preferred SeNB 1 from the SeNB after filtration, goes to the 205th step;
205th step: MeNB sends prothetic group station to SeNB and adds request message, goes to the 206th step;
206th step: SeNB carries out admission processing, receives unsuccessfully backward MeNB to reply prothetic group station and adds request refuse information (SeNB Addition Request Reject), go to the 207th step;
207th step: MeNB, according to algorithm preferred next SeNB 2 from the SeNB after filtration, goes to the 208th step;
208th step: MeNB sends prothetic group station to SeNB and adds request message, goes to the 209th step;
209th step: SeNB carries out admission processing, receives successfully backward MeNB to reply prothetic group station and adds request-reply message, go to the 210th step;
210th step: MeNB sends wireless heterogeneous networks to UE and connects the newly assigned resource of reallocation message configuration SeNB, goes to the 211st step;
211st step: after UE process success, replys wireless heterogeneous networks connection reprovision to MeNB and completes message, go to the 212nd step;
212nd step: MeNB sends prothetic group station reprovision to SeNB and completes message, goes to the 213rd step;
213rd step: UE is synchronized to SeNB by random access procedure, goes to the 214th step;
214th step: for SCG carrying, MeNB takes action according to the load characteristic of corresponding E-RAB and reduces to activate due to dual link the service disconnection caused.MeNB transmits message to the SeNB state that transmits Sequence Number, and carries uplink and downlink PDCP sequence number and HFN state, goes to the 215th step;
215th step: data retransmission.Data from SGW arrive MeNB, are then forwarded to SeNB by MeNB, go to the 216th step;
216th step: MeNB sends universal mobile telecommunications system land radio access web RAB amendment Indication message to MME and upgrades user plane path, goes to the 217th step;
217th step: MME and SGW realizes bearing modification alternately, goes to the 218th step;
218th step: SGW sends to MeNB and terminates identification packet, and is forwarded to SeNB via MeNB, goes to the 219th step;
219th step: MME replys universal mobile telecommunications system land radio access web RAB amendment acknowledge message to MeNB.
Embodiment 3:
Parallel SeNB of the present invention adds process as shown in Figure 3.
301st step: the information of the corresponding parameter that MeNB acquisition algorithm and judgement need, goes to the 301st step;
302nd step: MeNB obtains candidate SeNB, goes to the 303rd step;
303rd step: MeNB filters (the candidate SeNB quantity after filtering in this embodiment is N) the candidate SeNB obtained according to filter algorithm, goes to the 304th step;
304th step: MeNB sends prothetic group station to SeNB 1 and adds request message, goes to the 305th step;
305th step: MeNB sends prothetic group station to SeNB 2 and adds request message, goes to the 306th step;
306th step: MeNB sends SeNB successively and adds request, sends prothetic group station and adds request message, go to the 307th step to SeNB N;
307th step: SeNB 1 process is replied prothetic group station to MeNB and is added request-reply message, go to the 308th step after please adding and asking message success;
308th step: SeNB 2 replys prothetic group station to MeNB and adds request-reply message, go to the 309th step after processing and adding request message success;
309th step: SeNB replys prothetic group station to MeNB successively and adds request-reply message, and to the last SeNBN replys prothetic group station interpolation request-reply message to MeNB, goes to the 310th step;
310th step: MeNB, according to selection algorithm preferred SeNB 1 from the SeNB replying response message, goes to the 311st step;
311st step: MeNB sends wireless heterogeneous networks to UE and connects reallocation message, and the new resources that configuration SeNB distributes go to the 312nd step;
312nd step: after UE process success, replys wireless heterogeneous networks connection reprovision to MeNB and completes message, go to the 313rd step;
313rd step: MeNB sends prothetic group station reprovision to preferred SeNB 1 and completes message, goes to the 314th step;
314th step: MeNB sends prothetic group station releasing request message to not selected SeNB 2, and release UE context, goes to the 315th step;
315th step: MeNB sends prothetic group station releasing request message to not selected SeNB successively, until send prothetic group station releasing request message to SeNB N, goes to the 316th step;
316th step: by random access procedure, UE is synchronized to SeNB 1, goes to the 317th step;
317th step: MeNB to transmit Sequence Number status message to SeNB 1, goes to the 318th step;
318th step: data retransmission.Data from SGW arrive MeNB, are then forwarded to SeNB by MeNB, go to the 319th step;
The mutual realizing route of 319th step: MeNB and MME upgrades.
Embodiment 4:
ENB of the present invention obtains the process of SeNB resource state information as shown in Figure 4.
401st step: MeNB obtains the identification information of SeNB, goes to the 402nd step;
402nd step: MeNB sends resource status request (Resource Status Request) message to SeNB, goes to the 403rd step;
403rd step: after the success of SeNB process request message, replys resource status response (ResourceStatus Response) message to MeNB.SeNB initiates to measure according to the parameter of carrying in request message, goes to the 404th step;
404th step: SeNB sends resource status to MeNB and upgrades (Resource Status Update) message, the result of the measurement that report is received.
Embodiment 5:
MeNB of the present invention obtains the process of UE velocity information as shown in Fig. 5 (a).
501st step: MeNB obtains UE identification information, goes to the 502nd step;
502nd step: MeNB sends a request message to UE, the information such as request UE report speed, go to the 503rd step;
503rd step: UE replys request response to MeNB, the information such as report UE speed.
Alternatively, MeNB can also obtain UE velocity information, as shown in Fig. 5 (b) by following process.
501st step: MeNB obtains the historical information of the subscriber equipment preserved according to customer equipment identification, go to the 502nd step;
502nd step: the residence time in community according to the community visited in historical information and subscriber equipment, MeNB calculates the average residence time of subscriber equipment, goes to the 503rd step;
The average residence time calculated and preset threshold value compare by the 503rd step: MeNB, if the average residence time of UE is less than preset threshold value, go to the 504th step; Otherwise, go to the 505th step;
504th step: exporting subscriber equipment speed state is at a high speed;
505th step: exporting subscriber equipment speed state is non-high-speed.
Embodiment 6:
MeNB of the present invention obtains the process of SeNB cell type as shown in Fig. 6 (a).
601st step: MeNB obtains SeNB identification information, goes to the 502nd step;
602nd step: MeNB sends a request message to SeNB, the information such as request SeNB reporting cell type, go to the 503rd step;
The information such as the 603rd step: SeNB replys request-reply message to MeNB, report SeNB cell type.
Alternatively, MeNB can also obtain SeNB cell type information, as shown in Fig. 6 (b) by following process.
601st step: webmaster is that dominant base configures auxiliary cell set (comprising the information such as Physical Cell Identifier, descending carrier frequency, cell type), goes to the 602nd step;
602nd step: by data syn-chronization, is synchronized to MeNB by the auxiliary cell set (comprising the information such as Physical Cell Identifier, descending carrier frequency, cell type) of configuration, obtains the cell type of corresponding SeNB from MeNB.
Embodiment 7:
MeNB of the present invention carries out the filter algorithm process of filtering as shown in Figure 7 to SeNB.
701st step: MeNB judges whether preset be filter SeNB according to load, if so, goes to the 702nd step; Otherwise, go to the 703rd step;
702nd step: according to the SeNB resource state information obtained, MeNB filtering resource occupation reaches the SeNB of preset thresholding;
703rd step: MeNB judges whether preset be filter SeNB according to UE speed, if so, goes to the 704th step; Otherwise, go to the 705th step;
704th step: according to the UE velocity information obtained, when subscriber equipment speed state is high speed, MeNB filtering cell type is the SeNB of verysmall or small;
705th step: MeNB judges whether preset be filter SeNB according to load and UE speed, if so, goes to the 706th step; Otherwise, terminate;
706th step: according to the SeNB resource status obtained and UE velocity information, MeNB filtering resource occupation reaches the SeNB of preset thresholding; Or/and when subscriber equipment is high speed, filtering cell type is the SeNB of verysmall or small.
Embodiment 8:
The selection algorithm process of the preferred SeNB of MeNB of the present invention as shown in Figure 8.
801st step: MeNB obtains weighted factor corresponding to preset average weight factor (factor calculating average weight in the present embodiment is radio signal quality and SeNB load).That is, MeNB obtains and is used for the radio signal quality of average weight and the weighted factor of load, goes to the 802nd step;
802nd step: to filtration after qualified SeNB according to radio signal quality from getting well to differing from sequence, go to the 803rd step;
803rd step: to qualified SeNB after filtration according to load from light to reordering, go to the 804th step;
804th step: the average weight calculating SeNB according to the sequence number after weighted factor and sequence, goes to the 805th step;
805th step: the average weight according to SeNB sorts from small to large, goes to the 806th step;
806th step: export and come the minimum SeNB of the most front average weight.
Embodiment 9:
MeNB of the present invention obtains the process of candidate SeNB as shown in Fig. 9 (a).
901st step: MeNB obtains customer equipment identification, the auxiliary group of base stations of configuration, measures the information such as configuration, goes to the 902nd step;
902nd step: MeNB sends wireless heterogeneous networks to UE and connects reallocation message, carries information such as measuring configuration, goes to the 903rd step;
903rd step: after UE process success, replys wireless heterogeneous networks connection reprovision to MeNB and completes message, go to the 904th step;
904th SeNB of step: UE to correspondence measures, and when satisfying condition, sends measurement report (Measurement Report) information reporting SeNB information to MeNB.
Alternatively, MeNB can also obtain candidate SeNB, as shown in Fig. 9 (b) by following process.
901st step: MeNB obtains the SeNB group of configuration and covering radius, the geographical location information (comprising longitude and latitude etc.) of correspondence, goes to the 902nd step;
902nd step: obtain its geographical location information (comprising longitude and latitude etc.) (alternatively, MeNB sends a request message to UE, and UE replys to MeNB the geographical location information etc. that request response reports UE) alternately with UE, go to the 903rd step;
903rd step: obtain first SeNB, go to the 904th step;
904th step: calculate coverage according to the longitude and latitude of SeNB and covering radius, then judges that the geographical position of subscriber equipment is whether within SeNB coverage.If in coverage, go to the 905th step; Otherwise, go to the 906th step;
905th step: this SeNB is put into candidate SeNB list, goes to the 906th step;
906th step: judge whether it is last SeNB? if so, the 908th step is gone to; Otherwise, go to the 907th step;
907th step: obtain next SeNB, goes to the 904th step;
908th step: export candidate SeNB list.
Obviously, implement also should coordinate corresponding auxiliary facility and technological means when using of the present invention, in the describing of text of the present invention, these corresponding auxiliary facilities and technological means have been considered as conventional technological means.Without departing from the spirit and scope of the present invention; those skilled in the art are not when departing from scope and spirit of the present invention, and all apparent amendment about form and details carry out it or change all should drop within protection scope of the present invention.
Claims (12)
1. a dual link prothetic group station adding method, realize when there is some candidate's prothetic group station SeNB in Long Term Evolution communication system preferably adding, it is characterized in that, described method comprises:
Dominant base MeNB obtains candidate prothetic group Zhan Fu community, the auxiliary cell load information in prothetic group station and/or the auxiliary cell type of user equipment (UE) velocity information and prothetic group station, and described candidate's prothetic group Zhan Fu community is filtered, then prioritization is carried out to the described prothetic group Zhan Fu community after filtration;
Dominant base selects one or more prothetic group Zhan Fu community as target prothetic group station from the described prothetic group Zhan Fu community after prioritization, then sends a request message to realize follow-up prothetic group station to described one or more target prothetic group station and adds.
2. method according to claim 1, is characterized in that, described dominant base obtains candidate prothetic group Zhan Fu community, comprising:
Dominant base obtains auxiliary cell set SCG and configures, and then sends radio resource control RRC to UE and connects reallocation message, and described RRC connects reallocation message and carries measurement configuration;
UE measures auxiliary community according to described measurement configuration, and then send measurement report message to described dominant base, described measurement report message carries the auxiliary cell information in prothetic group station meeting report condition.
3. method according to claim 1, is characterized in that, described dominant base obtains candidate prothetic group Zhan Fu community, also comprises:
Dominant base obtains geographical location information and the covering radius information of auxiliary cell set SCG configuration and described auxiliary cell set Zhong Fu community, then obtain the geographical location information of UE, and export candidate prothetic group Zhan Fu community according to the geographical location information of described auxiliary community and the geographical location information of covering radius information and described UE.
4. method according to claim 1, is characterized in that, described dominant base obtains UE velocity information, comprising:
Dominant base sends a request message to UE and asks described UE report speed information; UE replys to described dominant base the velocity information that response message reports described UE.
5. method according to claim 1, is characterized in that, described dominant base obtains UE velocity information, also comprises:
Dominant base obtains the historical information of UE, according to community and the residence time calculating average residence time of described UE in community of the visit of described historical information, then estimates the speed of described UE according to described average residence time.
6. method according to claim 1, is characterized in that, describedly filters prothetic group Zhan Fu community, comprising:
Dominant base filters described prothetic group Zhan Fu community according to the resource state information obtained, and filtering resources occupation rate reaches the prothetic group Zhan Fu community of certain threshold value;
And/or dominant base filters described prothetic group Zhan Fu community according to the UE velocity information obtained, when described UE speed is fast state, filtering cell type is the prothetic group Zhan Fu community of verysmall or small.
7. method according to claim 1, is characterized in that, describedly carries out prioritization to prothetic group Zhan Fu community, comprising:
Dominant base carries out prioritization according to the Reference Signal Received Power RSRP in measurement report and/or Reference Signal Received Quality RSRQ to prothetic group Zhan Fu community;
Dominant base carries out prioritization according to the resource utilization in resource status renewal to prothetic group Zhan Fu community;
Dominant base calculates weighted average weight according to ranking results, then carries out prioritization according to described average weight to prothetic group Zhan Fu community.
8. method according to claim 1, is characterized in that, described prothetic group station is added, and comprising:
Dominant base selects one or more prothetic group Zhan Fu community from high to low according to priority from the candidate's prothetic group Zhan Fu community after prioritization, then sends prothetic group station to described one or more prothetic group station and adds request message;
Dominant base adding the prothetic group Zhan Fu community of request-reply message from replying prothetic group station, selecting the prothetic group Zhan Fu community that priority is the highest, then send RRC connection reallocation message to UE after collecting described one or more prothetic group station reply response message;
Dominant base discharges the context of described UE at described prothetic group station to not selected but that request-reply message is added at reply prothetic group station transmission prothetic group station, prothetic group station releasing request message.
9. method according to claim 7, is characterized in that, described weighted average Weight computation, comprising:
Dominant base obtains the weight of signal quality and resource status, obtain the sequence number after being sorted in prothetic group Zhan Fu community according to signal quality descending from getting well to differing from and according to resource utilization from low to high ascending order sorted in described prothetic group Zhan Fu community after sequence number, then calculate the average weight of described prothetic group Zhan Fu community according to the sum of products of weight and sequence number.
10. method according to claim 8, is characterized in that, described prothetic group station is added, and also comprises:
Dominant base is when once only from the prothetic group Zhan Fu community after prioritization, preferably a prothetic group Zhan Fu community is added, if prothetic group station is replied at described prothetic group station add refuse information, select next prothetic group Zhan Fu community to initiate prothetic group station again to add, the rest may be inferred, until attempted all prothetic group Zhan Fu communities after filtration.
11. 1 kinds of prothetic group station adding sets, is characterized in that, comprising: the first receiver module, filtering module, sequence and selection module, the first sending module; Wherein:
First receiver module, receives measurement report for dominant base and resource status upgrades, and described measurement report and described resource status is upgraded the information of carrying and sends to described filtering module and sequence and select module;
Filtering module, filters the candidate's prothetic group Zhan Fu community obtained when adding prothetic group station for dominant base;
Sequence and selection module, for dominant base, prioritization is carried out to the prothetic group Zhan Fu community satisfied condition after filtration, and select one or more prothetic group Zhan Fu community from high to low according to priority, the information of described prothetic group Zhan Fu community is sent to described first sending module;
First sending module, for sending to target prothetic group station to add to realize follow-up prothetic group station described sequence and the information of the one or more prothetic group Zhan Fu communities selecting module to send.
12. 1 kinds of base stations, is characterized in that, comprise the prothetic group station adding set described in claim 11.
Priority Applications (1)
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