CN102625357A - CoMP-based admission control method and base station - Google Patents
CoMP-based admission control method and base station Download PDFInfo
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- CN102625357A CN102625357A CN2011100343898A CN201110034389A CN102625357A CN 102625357 A CN102625357 A CN 102625357A CN 2011100343898 A CN2011100343898 A CN 2011100343898A CN 201110034389 A CN201110034389 A CN 201110034389A CN 102625357 A CN102625357 A CN 102625357A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/086—Load balancing or load distribution among access entities
- H04W28/0861—Load balancing or load distribution among access entities between base stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/12—Setup of transport tunnels
Abstract
The invention relates to a coordinated multi-pointtransmission/reception(CoMP)-based bearing admission control method and a CoMP-based base station. When user equipment (UE) makes a request for service access, a CoMP cell that the UE is accessed initially performs the following operations that: resource state reports reported by other CoMP cells in the group that the CoMP cell is located at are obtained; measurement reports of all the CoMP cells in the group are obtained, wherein the measurement reports are reported by the UE; according to the resource state reports and the measurement reports of all the cells in the CoMP group, weighted queuing is carried out on all the CoMP cells in the group and N CoMP cells are screened according to a weighted queuing result; and it is determined whether total resources of the screened N cells meet a requirement of a service that the UE requests to establish; if so, admission is carried out and bearing is established; if not, the service access is rejected. According to the invention, the effective bearing admission control scheme utilizing the CoMP technology is provided.
Description
Technical field
The present invention relates to wireless communication system, particularly in LTE-A (Long TermEvolution-Advanced, the long-term evolution upgrading) system based on acceptance controlling method and the base station of CoMP.
Background technology
Multipoint cooperative transmission and reception technique CoMP (Coordinated Multi-pointtransmission/reception) propose for edge customer throughput, edge customer frequency efficiency and entire system performance in order further to satisfy the LTE system; Succession LTE-A (Long Term Evolution-Advanced, long-term evolution upgrading) as the LTE system is appointed as element important in its technological frame.Be meant the collaborative UE of participation of a plurality of transmission points of separating on the geographical position (subscriber equipment) transmission with/accept data, receive quality of signals to improve edge customer equipment.The covering that can increase high data rate through transmission and the reception technique of CoMP in the system, thus improve the throughput of cell edge or increase throughput of system.
In the LTE system; The same time has only a sub-district for certain UE service, in the LTE-A system, adopts the CoMP technology can realize that a plurality of sub-districts are a UE service; But in the prior art, still neither one effectively utilizes the carrying of CoMP technology to admit the control solution.
Summary of the invention
The technical problem that the present invention will solve provides a kind ofly carries acceptance controlling method and based on the base station of CoMP, to solve the problem that controlling schemes is admitted in the carrying that does not still effectively utilize the CoMP technology based on CoMP.
For solving above technical problem, the invention provides a kind of acceptance controlling method based on CoMP, during subscriber equipment (UE) request access service, operation below said UE carries out the initial CoMP sub-district of inserting:
Obtain the resource status report that other CoMP sub-districts in the collection of place report;
Obtain the measurement report of all CoMP sub-districts in the collection that said UE reports;
Resource status report and measurement report according to all sub-districts in the CoMP collection carry out the weighting queuing to all CoMP sub-districts in collecting, and screen N CoMP sub-district according to weighting queuing result;
Judge that whether N sub-district total resources that filter out can satisfy the business demand that said UE request is set up, and if can satisfy and then admit and set up carrying, otherwise refuse this service access.
Further, obtaining the resource status report that other CoMP sub-districts in the place collection report comprises: the CoMP sub-district reports said resource status report according to default setting or according to the RQ cycle property of the initial CoMP sub-district of inserting of said UE in the collection.
Further, the measurement report that obtains all CoMP sub-districts in the collection that said UE reports comprises: said UE reports said measurement report according to default setting or according to the RQ cycle property of the initial CoMP sub-district of inserting of said UE.
Further; Said measurement report comprises signal quality, pre-coding matrix index (PMI), CQI (CQI) or rank index (RI), and the weighting ordering is carried out according to resource status report, signal quality, PMI, CQI or the RI of this CoMP sub-district and interior other CoMP sub-districts of collection in said initial access CoMP sub-district.
For solving above technical problem, the present invention also provides a kind of CoMP cell base station, and this base station comprises:
Resource status report acquisition module is used to obtain the resource status report that other CoMP sub-districts in the collection of place report;
The measurement report acquisition module is used to obtain the measurement report of all CoMP sub-districts in the collection that the initial UE that inserts of current base station reports;
CoMP sub-district screening module is used for according to the resource status report and the measurement report of all sub-districts in the CoMP collection weighting queuing being carried out in all CoMP sub-districts in collecting, and screens N CoMP sub-district according to weighting queuing result;
Carry and admit control module, be used to judge whether N sub-district total resources that filter out can satisfy the business demand that said UE request is set up, and if can satisfy and then admit and set up carrying, otherwise refuse this service access.
Further, the CoMP sub-district periodically reports according to default setting in the resource status report collection that obtains of said resource status report acquisition module; The measurement report that said measurement report acquisition module obtains is that said UE reports according to default setting.
Further, said resource status report acquisition module is obtained the report of said resource status and is comprised that other CoMP sub-districts are sent resource statuss report request and received the resource status that periodically send other CoMP sub-districts in the collection in collection and report; Said measurement report acquisition module obtains said measurement report and comprises to said UE transmission measurement control request, and receives the measurement report that said UE sends.
Further; Said measurement report comprises signal quality, pre-coding matrix index (PMI), CQI (CQI) or rank index (RI), and the weighting ordering is carried out according to resource status report, signal quality, PMI, CQI or the RI of this CoMP sub-district and interior other CoMP sub-districts of collection in said initial access CoMP sub-district.
Among the present invention; The measurement report of all sub-districts in the CoMP collection that resource situation that main CoMP sub-district can report according to auxilliary CoMP sub-district and UE report; Weighting queuing and screening are carried out in all sub-districts in the CoMP collection, thereby judge whether to satisfy the UE service access according to the total resources of sub-district, screening back.Such judgement and select system is based upon carrying on the only sub-district according to the relevant information that UE measures, simultaneously set up carry at the beginning of just with load balancing in each sub-district, realized load balancing.
Description of drawings
Fig. 1 is the sketch map that the present invention is based on the acceptance controlling method of CoMP;
Fig. 2 sets up in the embodiment of the invention LTE-A system based on the CoMP technology to admit successful signaling process figure;
Fig. 3 is the overtime processing signaling flow chart of embodiment of the invention UE measurement report;
Fig. 4 is that the interior sub-district of the CoMP collection total resources of embodiment of the invention screening are not enough, admits the failed signaling flow chart.
Embodiment
In LTE, the same time has only a sub-district to be certain UE service, and the service bearer of UE can only be based upon in this sub-district.But at LTE-A (Long Term Evolution-Advanced; Long-term evolution upgrading) in the system; Adopt the CoMP technology; Can realize that a plurality of sub-districts are that same UE serves simultaneously, the present invention just is being based on this technology can load condition that a kind of CoMP of judgement concentrates each sub-district and admission service be provided, and promptly carries acceptance controlling method.
Fig. 1 is the sketch map that the present invention is based on the acceptance controlling method of CoMP.During subscriber equipment (UE) request access service, operation below said UE carries out the initial CoMP sub-district of inserting (the present invention is also referred to as main CoMP sub-district or main plot):
Step 101: obtain the resource status report that other CoMP sub-districts in the collection of place report;
The CoMP sub-district can report said resource status report according to the system default setting or according to the RQ cycle property of main CoMP sub-district in the collection.
The said CoMP cell set of the present invention can be that static in advance the setting also can dynamically arrange according to the particular measurement result.
Step 102: the measurement report that obtains all CoMP sub-districts in the collection that said UE reports;
UE can be according to the request of system default setting or main CoMP sub-district to main CoMP sub-district reporting measurement reports.
Particularly, measurement report comprises signal quality, pre-coding matrix index (PMI), CQI (CQI) or rank index (RI).
Above step 101 and step 102 be order in no particular order.
Step 103: resource status report and measurement report according to all sub-districts in the CoMP collection carry out the weighting queuing to all CoMP sub-districts in collecting, and screen N CoMP sub-district according to weighting queuing result;
Particularly, the weighting ordering is carried out according to resource status report, signal quality, PMI, CQI or the RI of other CoMP sub-districts in this CoMP sub-district and the collection in main CoMP sub-district, such as resource status weights account for 40%, signal quality accounts for 30%, other respectively account for 10%.
The CoMP sub-district number N of screening is relevant with the system configuration screening strategy, and for example its screening strategy can be according to system configuration or UE user's CAMEL-Subscription-Information etc., but the maximum carrying number that N can not can support greater than UE self.
Generally speaking, the CAMEL-Subscription-Information of UE is configured on the core net, and when the information of the screening strategy of system configuration and UE was relevant, core net can be passed through E-RAB signaling master CoMP sub-district when the user inserts.
Step 104: judge that whether N sub-district total resources that filter out can satisfy the business demand that said UE request is set up, and if can satisfy and then admit and set up carrying, otherwise refuse this service access.
The inventive method goes for being positioned at the UE of center of housing estate, also goes for the UE of cell edge, and when UE was positioned at cell edge, it admitted the control effect more obvious.Understandably, thus when UE initiate to insert request, can carry relevant information can show that whether being in is cell edge.
Preferably; Main CoMP sub-district is sent periodic resources to auxilliary CoMP sub-district and is measured control; Auxilliary CoMP sub-district is according to the resource measurement report that periodically reports the cycle time of measuring in the control; When the UE requested service was set up, the measurement control (signal quality, PMI, RI, CQI etc.) of eNodeB all sub-districts in UE sends about the CoMP collection was behind the UE reporting measurement reports.ENodeB carries out weighting queuing (resource, signal quality, PMI, RI, CQI etc.) to all sub-districts in the CoMP collection, carries quantity (n) according to the signatory maximum that can accept of UE and screens qualified TOP (n) sub-district.Whether the resource summation of judging these sub-districts filter out this moment again satisfies will be set up professional resource, carries if satisfy to set up with this business admission and on all sub-districts, otherwise refuses this service access.
Admittance control based on CoMP can make the user who is in cell edge use Internet resources through the CoMP technology, and load balancing has been realized in each sub-district in the CoMP collection.
Hereinafter will combine accompanying drawing that embodiments of the invention are elaborated.Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.
In order to further specify the present invention, be elaborated below in conjunction with accompanying drawing and embodiment.
Embodiment 1
UE request inserts one or more when professional, and the admittance control flow when local resource can satisfy in the CoMP collection of screening is as shown in Figure 2:
Step 201: the resource measurement request is sent in other sub-districts in the CoMP collection, main plot;
This measurement request is only sent once, carries the sub-district and reports resource situation information, report cycle etc.
The time cycle that requires in the resource measurement request of other sub-districts according to the main plot in the step 202:CoMP collection reports current local resource loading condition;
Step 203: core net is sent E-RAB (evolution RAB EVOLVEDRADIO ACCESS BEAR) to the main plot and is admitted request;
Step 204: the main plot is sent to UE and is measured control request; Require UE to measure all cell signal quality, PMI (Precoding Matrix Indicator in the present CoMP collection; Pre-coding matrix index), CQI (Channel Quality Indication; CQI), RI (Rank Indication, order indication).
Step 205:UE is according to the signal quality of measuring sub-district in the CoMP collection that the control request reporting measurement arrives, PMI, RI, CQI etc.;
Step 206: the relevant information of sub-district is carried out weighted in the CoMP collection that reports according to UE, is ranked in all not congested sub-districts;
Step 207: the carrying number that can admit according to the UE maximum screens the sub-district of weighted, selects corresponding TOP sub-district;
Step 208: the TOP sub-district existing resource summation according to filtering out judges whether to satisfy this service access;
All local resource summations of step 209:TOP satisfy user's access, and the main plot is sent E-RAB to core net and admitted success response.
Embodiment 2
Present embodiment UE request inserts one or more when professional, handling process when the UE measurement report is overtime, and as shown in Figure 3, this handling process comprises:
Step 301: the resource measurement request is sent in other sub-districts in the CoMP collection, main plot;
This measurement request is only sent once, carries the sub-district and reports resource situation information, report cycle etc.
Step 302: the time cycle that requires in the resource measurement request of other sub-districts according to the main plot in the collection reports current local resource loading condition;
Step 303: the E-RAB that core net is sent to the main plot admits request;
Step 304: the main plot is sent to UE and is measured control request, requires UE to measure all cell signal quality, CQI, PMI, RI etc. in the present CoMP collection.
Step 305: in the time-out time of system configuration, do not receive the measurement report of UE, the main plot is sent E-RAB to core net and is admitted failure response.
Embodiment 3
In the present embodiment, UE request inserts one or more when professional, and the admittance control procedure when the residue local resource is not enough in the CoMp collection of screening back is as shown in Figure 4:
Step 401: the resource measurement request is sent in other sub-districts in the CoMP collection, main plot;
This measurement request is only sent once, carries the sub-district and reports resource situation information, report cycle etc.
Step 402: the time cycle that requires in the resource measurement request of other sub-districts according to the main plot in the collection reports current local resource loading condition;
Step 403: the E-RAB that core net is sent to the main plot admits request;
Step 404: the main plot is sent to UE and is measured control request, requires UE to measure all cell signal quality, CQI, PMI, RI etc. in the present CoMP collection;
Step 405:UE is according to the signal quality of measuring the CoMP collection sub-district that the control request reporting measurement arrives, PMI, RI, CQI etc.;
Step 406: the relevant information of sub-district is carried out weighted in the CoMP collection that reports according to UE, is ranked in all not congested sub-districts;
Step 407: the carrying number that can admit according to the UE maximum screens the sub-district of weighted, selects corresponding TOP sub-district;
Step 408: the TOP sub-district existing resource summation according to filtering out judges whether to satisfy this service access;
All local resource summations of step 409:TOP do not satisfy user's access, and the main plot is sent E-RAB to core net and admitted failure response.
Corresponding to above method, the present invention also provides a kind of CoMP cell base station, and this base station comprises:
Resource status report acquisition module is used to obtain the resource status report that other CoMP sub-districts in the collection of place report;
The measurement report acquisition module is used to obtain the measurement report of all CoMP sub-districts in the collection that the initial UE that inserts of current base station reports;
CoMP sub-district screening module is used for according to the resource status report and the measurement report of all sub-districts in the CoMP collection weighting queuing being carried out in all CoMP sub-districts in collecting, and screens N CoMP sub-district according to weighting queuing result;
Carry and admit control module, be used to judge whether N sub-district total resources that filter out can satisfy the business demand that said UE request is set up, and if can satisfy and then admit and set up carrying, otherwise refuse this service access.
Further, the CoMP sub-district periodically reports according to default setting in the resource status report collection that obtains of said resource status report acquisition module; The measurement report that said measurement report acquisition module obtains is that said UE reports according to default setting.
Further, said resource status report acquisition module is obtained the report of said resource status and is comprised that other CoMP sub-districts are sent resource statuss report request and received the resource status that periodically send other CoMP sub-districts in the collection in collection and report; Said measurement report acquisition module obtains said measurement report and comprises to said UE transmission measurement control request, and receives the measurement report that said UE sends.
Further; Said measurement report comprises signal quality, pre-coding matrix index (PMI), CQI (CQI) or rank index (RI), and the weighting ordering is carried out according to resource status report, signal quality, PMI, CQI or the RI of this CoMP sub-district and interior other CoMP sub-districts of collection in said initial access CoMP sub-district.
More than said base station comprise the ENB (eNodeB, the Node B in the evolution) in the LTE-A system.
Among the present invention, signal quality, PMI, RI, the CQI of all sub-districts carry out weighting queuing and screening to all sub-districts in the CoMP collection in the CoMP collection that resource situation that main CoMP sub-district can periodically report according to auxilliary CoMP sub-district and UE report.Thereby the total resources according to sub-district, screening back judge whether to satisfy the UE service access.Such judgement and select system is based upon carrying on the only sub-district according to the relevant information that UE measures, simultaneously set up carry at the beginning of just with load balancing in each sub-district, realized load balancing.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to accomplish through program, said program can be stored in the computer-readable recording medium, like read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each module in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (8)
1. the acceptance controlling method based on CoMP is characterized in that, during subscriber equipment (UE) request access service, and operation below said UE carries out the initial CoMP sub-district of inserting:
Obtain the resource status report that other CoMP sub-districts in the collection of place report;
Obtain the measurement report of all CoMP sub-districts in the collection that said UE reports;
Resource status report and measurement report according to all sub-districts in the CoMP collection carry out the weighting queuing to all CoMP sub-districts in collecting, and screen N CoMP sub-district according to weighting queuing result;
Judge that whether N sub-district total resources that filter out can satisfy the business demand that said UE request is set up, and if can satisfy and then admit and set up carrying, otherwise refuse this service access.
2. the method for claim 1 is characterized in that: obtain the resource status report that other CoMP sub-districts in the collection of place report and comprise: the CoMP sub-district reports said resource status report according to default setting or according to the RQ cycle property of the initial CoMP sub-district of inserting of said UE in the collection.
3. according to claim 1 or claim 2 method is characterized in that: the measurement report that obtains all CoMP sub-districts in the collection that said UE reports comprises: said UE reports said measurement report according to default setting or according to the RQ cycle property of the initial CoMP sub-district of inserting of said UE.
4. the method for claim 1; It is characterized in that: said measurement report comprises signal quality, pre-coding matrix index (PMI), CQI (CQI) or rank index (RI), and the weighting ordering is carried out according to resource status report, signal quality, PMI, CQI or the RI of this CoMP sub-district and interior other CoMP sub-districts of collection in said initial access CoMP sub-district.
5. a CoMP cell base station is characterized in that, this base station comprises:
Resource status report acquisition module is used to obtain the resource status report that other CoMP sub-districts in the collection of place report;
The measurement report acquisition module is used to obtain the measurement report of all CoMP sub-districts in the collection that the initial UE that inserts of current base station reports;
CoMP sub-district screening module is used for according to the resource status report and the measurement report of all sub-districts in the CoMP collection weighting queuing being carried out in all CoMP sub-districts in collecting, and screens N CoMP sub-district according to weighting queuing result;
Carry and admit control module, be used to judge whether N sub-district total resources that filter out can satisfy the business demand that said UE request is set up, and if can satisfy and then admit and set up carrying, otherwise refuse this service access.
6. base station as claimed in claim 5 is characterized in that: the CoMP sub-district periodically reports according to default setting in the resource status report collection that said resource status report acquisition module is obtained; The measurement report that said measurement report acquisition module obtains is that said UE reports according to default setting.
7. base station as claimed in claim 5 is characterized in that: said resource status report acquisition module is obtained said resource status report and is comprised that other CoMP sub-districts are sent resource status report request and received the resource status report that periodically send other CoMP sub-districts in the collection in collection; Said measurement report acquisition module obtains said measurement report and comprises to said UE transmission measurement control request, and receives the measurement report that said UE sends.
8. base station as claimed in claim 5; It is characterized in that: said measurement report comprises signal quality, pre-coding matrix index (PMI), CQI (CQI) or rank index (RI), and the weighting ordering is carried out according to resource status report, signal quality, PMI, CQI or the RI of this CoMP sub-district and interior other CoMP sub-districts of collection in said initial access CoMP sub-district.
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| CN2011100343898A CN102625357A (en) | 2011-02-01 | 2011-02-01 | CoMP-based admission control method and base station |
| PCT/CN2011/082010 WO2012103760A1 (en) | 2011-02-01 | 2011-11-10 | Admission control method based on comp and base station |
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| CN2011100343898A CN102625357A (en) | 2011-02-01 | 2011-02-01 | CoMP-based admission control method and base station |
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| CN104602298A (en) * | 2015-01-30 | 2015-05-06 | 中国联合网络通信集团有限公司 | Air interface congestion control method and base station |
| CN107046703A (en) * | 2016-02-05 | 2017-08-15 | 华为技术有限公司 | Connection control method and base station |
| CN107046703B (en) * | 2016-02-05 | 2021-01-29 | 华为技术有限公司 | Access control method and base station |
| CN110933760A (en) * | 2019-11-28 | 2020-03-27 | 北京明略软件系统有限公司 | Bearing admission control method, device and base station equipment |
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| WO2012103760A1 (en) | 2012-08-09 |
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