CN104796948B - Radio bearer modification method and system in dual link network - Google Patents
Radio bearer modification method and system in dual link network Download PDFInfo
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- CN104796948B CN104796948B CN201410028500.6A CN201410028500A CN104796948B CN 104796948 B CN104796948 B CN 104796948B CN 201410028500 A CN201410028500 A CN 201410028500A CN 104796948 B CN104796948 B CN 104796948B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
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Abstract
The problem of the invention discloses the radio bearer modification method and system in a kind of dual link network, are related to wireless communication technology field, and the present invention is solved in the dual link network using 3C frameworks, and DRB QoS relevant parameters are changed between SeNB and UE.When parameter change occurs, MeNB can send bearing modification instruction to SeNB, and instruction SeNB completes the modification of the DRB between UE, and implementation method is simple, takes full advantage of the advantage of doubly-linked connection technology, ensure that the regular traffic transmission of user.
Description
Technical field
The present invention relates to wireless communication technology field, the radio bearer modification method in more particularly to a kind of dual link network
And system.
Background technology
Dual link network is the research hotspot of Current wireless communication technology, and the network architecture is as shown in Figure 1.In this network
In, user terminal（UE）While and macro base station（MeNB）And micro-base station（SeNB）Between keep eat dishes without rice or wine to connect, it means that macro base
It stands and micro-base station can provide service for UE simultaneously.It is communicated by using dual link, when UE carries out movement simultaneously inside macrocell
Into or when leaving a cell, can not perform handoff procedure, and only by macro base station using resource reconfiguration process come
It is configured for UE or discharges small local resource, the relevant control process that core net performs at this time will greatly reduce, so as to reduce core
Net signaling traffic load, further, since not performing handoff procedure, the mobility performance of network will have larger improvement.It can be seen that it introduces
Dual link, which communicates, can reduce the signaling traffic load of network, can improve the mobility performance of network in addition.
In dual link network, it is currently suggested basis of two kinds of user plane frameworks as future studies：1A and 3C frameworks,
With reference to Fig. 2 a）And 2b）, wherein, RLC is radio link control entity, and DTCH is Dedicated Traffic Channel, and MAC is media access control
System.Under 3C frameworks, support to shunt EPS carryings, i.e. MeNB and SeNB can establish Data Radio Bearer with UE respectively
（Data Radio Bearer, DRB）To transmit same evolved packet system（Evolved Packet System, EPS）It holds
It carries.
In existing LTE system, the modification of carrying is divided into two kinds of situations：One kind is bearer quality of service（QoS）Relevant parameter
Update, another kind is the update for carrying non-qos parameter.Two kinds of situation processes are slightly distinguished.
It can be by packet data network gateway for the process for changing bearer QoS parameters（PDN Gateway, PGW）Triggering or
Home subscriber server（Home Subscriber Server, HSS）Triggering.Idiographic flow is as shown in figure 3, when carrying
The situation of qos parameter modification, either PGW or HSS triggerings, can be by mobility management entity（Mobility Management
Entity, MME）To base station（eNB）Send bearing modification request.ENB, which is received, to be changed the QoS of corresponding radio bearer after the message and matches
It puts, and RRC connection reconfiguration message is sent to UE, instruction UE carries out the QoS configuration modifications of corresponding radio bearer.UE refers to according to eNB
Show the QoS configurations of modification carrying, and message is completed to eNB feedback RRC connection reconfigurations.ENB receives UE feedback bearing modifications and completes
Confirmation message after, bearing modification response confirmation bearing modification will be fed back to MME and completed.
In the dual link network using 3C frameworks, support to shunt EPS carryings, i.e., carried for same EPS
Data can establish DRB respectively with MeNB and SeNB and be transmitted.There is no S1 under 3C frameworks, between SeNB and MME to connect
Mouthful.When there is a situation where change bearer QoS parameters, can not according to existing LTE system bearing modification process from MME directly to SeNB
Bearing modification request is sent, the modification of bearer QoS parameters can not be carried out to SeNB.
Invention content
（One）Technical problems to be solved
The technical problem to be solved by the present invention is to：How in the dual link network of 3C frameworks, between realization SeNB and UE
Bearer QoS parameters modification.
（Two）Technical solution
In order to solve the above technical problems, the present invention provides a kind of radio bearer modification method in dual link network, institute
The method of stating includes the following steps：
S1:Macro base station is received as the bearing modification request transmitted by mobility management entity MME, is sent and is carried to micro-base station
Modification instruction, the bearing modification instruction include：Evolved packet system EPS load identifications to be modified and corresponding DRB marks
Know, QoS configuration informations；
S2：After the micro-base station receives the bearing modification instruction, carrying configuration is carried out according to the QoS configuration informations
Modification after the completion of modification, feeds back the response of the first bearing modification to the macro base station；
S3：The macro base station sends radio resource control RRC connection reconfiguration message, the RRC connections weight to user terminal
Include with message：Evolved packet system EPS load identifications to be modified and corresponding DRB marks, QoS configuration informations；
S4：After the user terminal receives the RRC connection reconfigurations message, held according to the QoS configuration informations
Configuration modification is carried, after the completion of modification, RRC connection reconfigurations is sent to the macro base station and completes message；
S5：After the macro base station receives the RRC connection reconfigurations completion message, the second carrying is sent to the micro-base station
Modification response, to realize that the bearer QoS parameters between micro-base station and user terminal are changed.
Wherein, in step S1, after macro base station reception is as the bearing modification request transmitted by mobility management entity MME, first
EPS bearer QoS parameters during the bearing modification is asked map, and to obtain radio bearer qos parameter, the QoS matches
Confidence breath includes：The radio bearer qos parameter.
Wherein, in step S1, macro base station is received as after the bearing modification request transmitted by mobility management entity MME, sentencing
Whether the EPS carryings in the disconnected bearing modification request have the DRB of corresponding micro-base station, are repaiied if so, then sending carrying to micro-base station
Change instruction.
Wherein, in step S1, the macro base station judges the EPS in the bearing modification request according to locally store information
Whether carrying has the DRB of corresponding micro-base station.
Wherein, the RRC connection reconfigurations message further includes：Micro-base station identifies.
The invention also discloses the radio bearer modification system in a kind of dual link network, the system comprises：Macro base station,
Micro-base station and user terminal,
The macro base station is sent out for receiving as the bearing modification request transmitted by mobility management entity MME to micro-base station
Bearing modification is sent to indicate, the bearing modification instruction includes：Evolved packet system EPS load identifications to be modified and corresponding
DRB marks, QoS configuration informations；
After the micro-base station is for receiving the bearing modification instruction, carries out carrying according to the QoS configuration informations and match
Modification is put, after the completion of modification, feeds back the response of the first bearing modification to the macro base station；
The macro base station is additionally operable to send radio resource control RRC connection reconfiguration message, the RRC connections to user terminal
Reallocation message includes：Evolved packet system EPS load identifications to be modified and corresponding DRB marks, QoS configuration informations；
After the user terminal is for receiving the RRC connection reconfigurations message, held according to the QoS configuration informations
Configuration modification is carried, after the completion of modification, RRC connection reconfigurations is sent to the macro base station and completes message；
The macro base station is additionally operable to after receiving the RRC connection reconfigurations completion message, and second is sent to the micro-base station
Bearing modification responds, to realize that the bearer QoS parameters between micro-base station and UE are changed.
Wherein, the macro base station is additionally operable to receive as after the bearing modification request transmitted by mobility management entity MME, first
EPS bearer QoS parameters during the bearing modification is asked map, and to obtain radio bearer qos parameter, the QoS matches
Confidence breath includes：The radio bearer qos parameter.
Wherein, the macro base station is additionally operable to receive as after the bearing modification request transmitted by mobility management entity MME, sentencing
Whether the EPS carryings in the disconnected bearing modification request have the DRB of corresponding micro-base station, are repaiied if so, then sending carrying to micro-base station
Change instruction.
Wherein, the macro base station judges whether is EPS carryings in bearing modification request according to locally store information
There is the DRB of corresponding micro-base station.
Wherein, the RRC connection reconfigurations message further includes：Micro-base station identifies.
（Three）Advantageous effect
The present invention is solved in the dual link network using 3C frameworks, and what DRBQoS relevant parameters were changed between SeNB and UE asks
Topic.When parameter change occurs, MeNB can send bearing modification instruction to SeNB, and instruction SeNB completes to repair DRB between UE
Change, implementation method is simple, takes full advantage of the advantage of doubly-linked connection technology, ensure that the regular traffic transmission of user.
Description of the drawings
Fig. 1 is the framework schematic diagram of dual link network；
Fig. 2 a) it is user plane 1A configuration diagrams in dual link network；
Fig. 2 b) it is user plane 3C configuration diagrams in dual link network；
Fig. 3 is the flow chart of the modification bearer QoS parameters of PGW/HSS triggerings in the prior art；
Fig. 4 is the flow diagram of the radio bearer modification method in the dual link network of one embodiment of the present invention；
Fig. 5 is the flow chart of the radio bearer modification method in the dual link network of an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the specific embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but be not limited to the scope of the present invention.
Fig. 4 is the flow diagram of the radio bearer modification method in the dual link network of one embodiment of the present invention；Ginseng
According to Fig. 4, the described method comprises the following steps：
S1:Macro base station is received as the bearing modification request transmitted by mobility management entity MME, is sent and is carried to micro-base station
Modification instruction, the bearing modification instruction include：Evolved packet system EPS load identifications to be modified and corresponding DRB marks
Know, QoS configuration informations；
S2：After the micro-base station receives the bearing modification instruction, carrying configuration is carried out according to the QoS configuration informations
Modification after the completion of modification, feeds back the response of the first bearing modification to the macro base station；
S3：The macro base station sends radio resource control RRC connection reconfiguration message, the RRC connections weight to user terminal
Include with message：Evolved packet system EPS load identifications to be modified and corresponding DRB marks, QoS configuration informations；
S4：After the user terminal receives the RRC connection reconfigurations message, held according to the QoS configuration informations
Configuration modification is carried, after the completion of modification, RRC connection reconfigurations is sent to the macro base station and completes message；
S5：After the macro base station receives the RRC connection reconfigurations completion message, the second carrying is sent to the micro-base station
Modification response, to realize that the bearer QoS parameters between micro-base station and UE are changed.
Due to only having EPS to carry QoS in core-network side, radio bearer QoS can not be transmitted directly to macro base station, in order to just
In the modification for realizing radio bearer QoS, it is preferable that in step S1, macro base station is received as transmitted by mobility management entity MME
After bearing modification request, the EPS bearer QoS parameters during first the bearing modification is asked map, to obtain radio bearer
Qos parameter, the QoS configuration informations include：The radio bearer qos parameter.
For ease of confirming the object of bearing modification request, it is preferable that in step S1, macro base station is received by mobile management reality
After bearing modification request transmitted by body MME, judge whether the EPS carryings in the bearing modification request have corresponding micro-base station
DRB, if so, then sending bearing modification instruction to micro-base station.
The efficiency of object is confirmed to improve, it is preferable that in step S1, the macro base station judges according to locally store information
Whether the EPS carryings in the bearing modification request have the DRB of corresponding micro-base station.
Since for user terminal, the information such as all instructions, message are transmitted by macro base station, in order to distinguish
Which is to adjust the relationship between micro-base station and user terminal, it is preferable that the RRC connection reconfigurations message further includes：It is micro-
Base Station Identification.
In present embodiment, step S1~S2 does not have sequence first with step S3~5, can first carry out step S3~S5,
Step S1~S2 is performed again, and only macro base station receives the response of the first bearing modification and feeds back the second bearing modification to micro-base station and rings
Ying Hou just calculates the DRB modifications realized between micro-base station and user terminal.
In present embodiment, the information such as message, response, instruction between micro-base station and macro base station pass through Xn interfaces or X2
Interface transmits.
Embodiment
The present embodiment is directed to the scene of modification bearer QoS parameters, as shown in figure 5, the method includes：
1st, when MeNB is received as the bearing modification request transmitted by MME；
MeNB first determines whether that the EPS in the bearing modification request carries the DRB for whether having corresponding SeNB.
If the 2, the EPS carries the DRB of corresponding SeNB, by the bearing modification ask in EPS carry QoS into
Row mapping to obtain radio bearer QoS, and sends bearing modification instruction to SeNB, and the bearing modification instruction includes：It is to be repaired
The evolved packet system EPS load identifications changed and corresponding DRB marks, QoS configuration informations, the QoS configuration informations include：Institute
Radio bearer QoS is stated, meanwhile, the SeNB DRB that the instruction modification that MeNB is asked according to the bearing modification is locally stored are carried
QoS configuration informations.
3rd, SeNB receives the bearing modification instruction of MeNB transmissions, and carrying relevant parameter is carried out according to the QoS configuration informations
Modification, modification completes backward MeNB and feeds back the response of the first bearing modification.
4th, MeNB sends RRC connection reconfiguration message to UE, and the RRC connection reconfigurations message includes：Evolution to be modified point
System system EPS load identifications and corresponding DRB marks, QoS configuration informations.
5th, UE carries out carrying configuration modification according to the QoS configuration informations, and after the completion of modification, RRC connections are sent to MeNB
It re-matches and completes message.
6th, MeNB sends the response of the second bearing modification after receiving RRC connection reconfigurations and completing message to SeNB, micro- to realize
Bearer QoS parameters modification between base station and UE.
7th, MeNB sends the response of third bearing modification to MME.
The step of step 8~9 are with the prior art is essentially identical, so repeat no more.
The invention also discloses the radio bearer modification system in a kind of dual link network, the system comprises：Macro base station,
Micro-base station and user terminal,
The macro base station is sent out for receiving as the bearing modification request transmitted by mobility management entity MME to micro-base station
Bearing modification is sent to indicate, the bearing modification instruction includes：Evolved packet system EPS load identifications to be modified and corresponding
DRB marks, QoS configuration informations；
After the micro-base station is for receiving the bearing modification instruction, carries out carrying according to the QoS configuration informations and match
Modification is put, after the completion of modification, feeds back the response of the first bearing modification to the macro base station；
The macro base station is additionally operable to send radio resource control RRC connection reconfiguration message, the RRC connections to user terminal
Reallocation message includes：The evolved packet system EPS load identifications to be modified and corresponding DRB marks, QoS configuration informations；
After the user terminal is for receiving the RRC connection reconfigurations message, held according to the QoS configuration informations
Configuration modification is carried, after the completion of modification, RRC connection reconfigurations is sent to the macro base station and completes message；
The macro base station is additionally operable to after receiving the RRC connection reconfigurations completion message, and second is sent to the micro-base station
Bearing modification responds, to realize that the bearer QoS parameters between micro-base station and UE are changed.
Preferably, the macro base station is additionally operable to receive as after the bearing modification request transmitted by mobility management entity MME,
EPS carryings QoS during first the bearing modification is asked maps, to obtain radio bearer QoS, the QoS configuration informations
Including：Radio bearer QoS.
Preferably, the macro base station is additionally operable to receive as after the bearing modification request transmitted by mobility management entity MME,
Judge whether the EPS carryings in the bearing modification request have the DRB of corresponding micro-base station, carried if so, then being sent to micro-base station
Modification instruction.
Preferably, the macro base station judges that the EPS carryings in the bearing modification request are according to locally store information
The no DRB for having corresponding micro-base station.
Preferably, the RRC connection reconfigurations message further includes：Micro-base station identifies.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff without departing from the spirit and scope of the present invention, can also make a variety of changes and modification, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (10)
1. a kind of radio bearer modification method in dual link network, which is characterized in that the described method comprises the following steps：
S1:Macro base station is received as the bearing modification request transmitted by mobility management entity MME, and bearing modification is sent to micro-base station
Instruction, the bearing modification instruction include：Evolved packet system EPS load identifications to be modified and corresponding data are wirelessly held
Carry DRB marks, service quality QoS configuration information；
S2：After the micro-base station receives the bearing modification instruction, carry out carrying configuration according to the QoS configuration informations and repair
Change, after the completion of modification, feed back the response of the first bearing modification to the macro base station；
S3：The macro base station sends radio resource control RRC connection reconfiguration message to user terminal, and the RRC connection reconfigurations disappear
Breath includes：Evolved packet system EPS load identifications to be modified and corresponding DRB marks, QoS configuration informations；
S4：After the user terminal receives the RRC connection reconfigurations message, carry out carrying according to the QoS configuration informations and match
Modification is put, after the completion of modification, RRC connection reconfigurations is sent to the macro base station and completes message；
S5：After the macro base station receives the RRC connection reconfigurations completion message, the second bearing modification is sent to the micro-base station
Response, to realize that the bearer QoS parameters between micro-base station and user terminal are changed.
2. the method as described in claim 1, which is characterized in that in step S1, macro base station is received by mobility management entity MME
After transmitted bearing modification request, the EPS bearer QoS parameters during first the bearing modification is asked map, to obtain
Radio bearer qos parameter, the QoS configuration informations include：The radio bearer qos parameter.
3. method as claimed in claim 2, which is characterized in that in step S1, macro base station is received by mobility management entity MME
After transmitted bearing modification request, judge whether the EPS carryings in the bearing modification request have the DRB of corresponding micro-base station,
If so, then bearing modification instruction is sent to micro-base station.
4. method as claimed in claim 3, which is characterized in that in step S1, the macro base station according to locally store information come
Judge whether the EPS carryings in the bearing modification request have the DRB of corresponding micro-base station.
5. such as method according to any one of claims 1 to 4, which is characterized in that the RRC connection reconfigurations message further includes：
Micro-base station identifies.
6. a kind of radio bearer modification system in dual link network, which is characterized in that the system comprises：Macro base station, micro- base
It stands and user terminal,
The macro base station holds for receiving as the bearing modification request transmitted by mobility management entity MME to micro-base station transmission
Modification instruction is carried, the bearing modification instruction includes：Evolved packet system EPS load identifications to be modified and corresponding data
Radio bearer DRB marks, service quality QoS configuration information；
After the micro-base station is for receiving the bearing modification instruction, carries out carrying configuration according to the QoS configuration informations and repair
Change, after the completion of modification, feed back the response of the first bearing modification to the macro base station；
The macro base station is additionally operable to send radio resource control RRC connection reconfiguration message, the RRC connection reconfigurations to user terminal
Message includes：Evolved packet system EPS load identifications to be modified and corresponding DRB marks, QoS configuration informations；
After the user terminal is for receiving the RRC connection reconfigurations message, carries out carrying according to the QoS configuration informations and match
Modification is put, after the completion of modification, RRC connection reconfigurations is sent to the macro base station and completes message；
The macro base station is additionally operable to after receiving the RRC connection reconfigurations completion message, and the second carrying is sent to the micro-base station
Modification response, to realize that the bearer QoS parameters between micro-base station and user terminal are changed.
7. system as claimed in claim 6, which is characterized in that the macro base station is additionally operable to receive by mobility management entity
After bearing modification request transmitted by MME, the EPS bearer QoS parameters during first the bearing modification is asked map, to obtain
Radio bearer qos parameter is obtained, the QoS configuration informations include：The radio bearer qos parameter.
8. system as claimed in claim 7, which is characterized in that the macro base station is additionally operable to receive by mobility management entity
After bearing modification request transmitted by MME, judge whether the EPS carryings in the bearing modification request have corresponding micro-base station
DRB, if so, then sending bearing modification instruction to micro-base station.
9. system as claimed in claim 8, which is characterized in that the macro base station judged according to locally store information described in hold
Carry whether the EPS carryings in modification request have the DRB of corresponding micro-base station.
10. the system as described in any one of claim 6~9, which is characterized in that the RRC connection reconfigurations message further includes：
Micro-base station identifies.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3352489B1 (en) | 2015-09-14 | 2021-04-14 | Nec Corporation | Method for a base station for adding a second base station, and a corresponding base station |
| CN106572479B (en) * | 2015-10-10 | 2020-02-14 | 中国移动通信集团公司 | Selection method, triggering method, device and base station of wireless data bearer |
| CN108307437A (en) * | 2016-08-12 | 2018-07-20 | 中兴通讯股份有限公司 | A kind of method and device of data processing |
| CN108156670B (en) * | 2016-12-05 | 2020-11-03 | 宏达国际电子股份有限公司 | Apparatus and method for processing communication |
| CN110248382B (en) * | 2017-01-05 | 2020-09-08 | 华为技术有限公司 | Information transmission method and device |
| CN110856223B (en) | 2017-05-05 | 2020-10-27 | 华为技术有限公司 | Communication method, centralized unit, distributed unit, base station and terminal equipment |
| CN108990125B (en) | 2017-06-01 | 2020-12-22 | 华为技术有限公司 | Data transmission method, terminal equipment and network equipment |
| CN109041129B (en) * | 2017-06-12 | 2022-12-13 | 中兴通讯股份有限公司 | Method and device for improving QoS negotiation of dual-connection architecture |
| CN109246765B (en) * | 2017-06-13 | 2023-12-29 | 中兴通讯股份有限公司 | User plane data session management method and device |
| KR102388500B1 (en) * | 2017-06-15 | 2022-04-21 | 삼성전자 주식회사 | Method and apparatus for handling mobility in dual rrc system |
| CN109246844B (en) * | 2017-06-16 | 2022-07-15 | 中兴通讯股份有限公司 | Configuration method and system of radio bearer |
| CN108401540B (en) * | 2017-11-29 | 2021-11-23 | 北京小米移动软件有限公司 | Management method and device of data radio bearer identification pool |
| CN110351043B (en) | 2018-04-04 | 2024-08-02 | 荣耀终端有限公司 | Communication method and device |
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