CN106332046A - Method of dynamically selecting wireless resources in dual-connectivity DC mode - Google Patents
Method of dynamically selecting wireless resources in dual-connectivity DC mode Download PDFInfo
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- CN106332046A CN106332046A CN201510335098.0A CN201510335098A CN106332046A CN 106332046 A CN106332046 A CN 106332046A CN 201510335098 A CN201510335098 A CN 201510335098A CN 106332046 A CN106332046 A CN 106332046A
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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
-
- 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
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a method of dynamically selecting wireless resources in a dual-connectivity DC mode. The method comprises steps: an MeNB and an SeNB interact load information through an X2 interface; UE reports an uplink split bearer memory status report BSR to a network side; the MeNB makes a decision of dynamically changing wireless resources according to the load information of the MeNB and the SeNB and the BSR information, and the UE is announced through PDCCH signaling; and the UE activates the corresponding wireless resource configuration according to the PDCCH signaling. The uplink split bearer resources can be dynamically changed according to the load condition of the network side and the UE service amount through the physical layer signaling, and an important role is played in improving the rate and the cell throughput.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to dynamic selection under a kind of dual link DC pattern wireless
The method of resource
Background technology
Along with the development of wireless mobile telecommunication technology, two-forty, low latency, low cost are proposed more by people
Carry out the highest requirement.LTE (Long Term Evolution) project creates the most in this context,
Pursue higher peak rate and shorter propagation delay time.
The main performance target of LTE project includes: can provide descending in 20MHz spectral bandwidth
100Mbps, the peak rate of up 50Mbps, improve the performance of Cell Edge User, improves community and holds
Amount；Reducing system delay, the internal unidirectional transmission time delay of user plane, less than 5ms, controls plane from sleep shape
State is to state of activation migration time less than 50ms, and the migration time from resident state to state of activation is less than
100ms；Support the MPS process of 100Km radius；Can provide for 350Km/h high velocity mobile users
> access service of 100kbps；Support paired or non-paired frequency spectrum；Support bandwidth varying, maximum 20M band
Wide.
LTE uses the simple squamous being made up of access network eNB (Evolved Node B) in the network architecture
Changing All-IP Network Architecture, this structure is conducive to simplifying network and reduction postpones, it is achieved that low time delay, low
Complexity and the requirement of low cost.ENB include physical layer, MAC (Medium Access Control) layer,
RRC (Radio Resource Control), scheduling, Access Control, carrying control, access mobile management
Deng.Grid (Mesh) mode direct interconnection will be used between eNB and eNB, progressively level off to typical IP
Broadband network structure.
In physical-layer techniques, LTE have employed OFDM (Orthogonal Frequency Division
Multiplexing), advanced for MIMO (Multiple Input Multiple Output) etc. Radio Transmission Technology
And link circuit self-adapting scheduling mode of based on channel and interference coordination technique.Further increase the speed of user
Rate and cell throughout, improve cell-edge performance.
Along with the development of wireless communication technology, and the further serious hope of low time delay, two-forty, at LTE-A
The technology that stage introducing is new, such as carrier aggregation CA (Carrier Aggregation), relaying Relay technology,
Multipoint cooperative CoMP (Coordinated Multipoint), eICIC (Enhanced Inter-Cell
Interference Coordination) etc. wireless technology.
Carrier aggregation CA was incorporated in LTE-A in the R10 stage, supported the carrier aggregation of most 5 carrier waves.
In R11, further enhance CA, support that many TA (Time Advance) scene and different up-downgoing are joined
Than the carrier aggregation between TDD under scene (Time Division Duplexing) community.R12 enters one
Step strengthens to be supported between FDD (Frequency Division Duplexing) and TDD different systems community
Carrier aggregation.In R12, introduce concept and the network of dual link DC (Dual Connectivity) simultaneously
Framework.Purpose is to further enhance small-cell covering scene lower network performance and speed.
Under DC scene, bearer types is divided into SCG (Secondary Cell Group) bearer, MCG
(Master Cell Group) bearer and split bearer.Wherein for split bearer, under descending support
Row data can be transmitted on MCG and SCG simultaneously, but upstream data can only be in MCG, SCG
Side transmission, by high-rise RRC signal deployment.
In existing DC, for split bearer, descending support downlink data can simultaneously at MCG and
The upper transmission of SCG, but upstream data can only transmit the side in MCG, SCG, by high-rise RRC
Signal deployment.Can not dynamically change resource according to cell load and portfolio, affect network performance.
Multiformity and complexity development along with mobile communication system service so that service dynamic changes.Simultaneously
Network side change over time, the load of network side is also being continually changing, so according to the load of network side
Situation and how many dynamic change up split bearer bearing resources of portfolio and quantity are for improving speed
Significant with cell throughout.If changed by RRC signaling, then speed slowly and additionally introduces
Too much signaling traffic load.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of method dynamically selecting Radio Resource under dual link pattern,
Including: MeNB and SeNB passes through X2 interface interacting load information；UE reporting uplink split bearer
Internal storage state report BSR to network side；Described MeNB is according to the load of described MeNB and SeNB
Information and described BSR information, made the judgement dynamically changing Radio Resource, and led to by PDCCH signaling
Know described UE；UE activates corresponding radio-resource-configuration according to described PDCCH signaling.
Preferably, described UE reports BSR to which base station of network side is determined by high level configuration.Further
, when described UE reports BSR to SeNB, this described BSR is also sent to MeNB by described SeNB.
Preferably, the result of described judgement includes: MCG side resource and/or SCG side resource.
Preferably, the method stated, it is characterised in that the information that described PDCCH signaling comprises includes: DRB
ID and activation resource instruction.
Preferably, described PDCCH signaling is carried multiple data radio bearers resource active order, described
UE is made a distinction by described DRB ID.
Preferably, also including: in the initialization procedure of described DC, network side configures split bearer simultaneously
MCG side and SCG side ascending resource, described UE according to RRC configuration instruction default activation MCG
Side ascending resource or SCG side ascending resource.
Preferably, also include: in a dc mode, on described UE, MeNB and SeNB are carried out for many times
State operating process.
The present invention dynamically can be changed by physical layer signaling according to the loading condition of network side and UE portfolio
Up split bearer bearing resource, significant for improving speed and cell throughout.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, retouch below
Accompanying drawing in stating is some embodiments of the present invention, for those of ordinary skill in the art, is not paying
On the premise of creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that the ascending resource of the embodiment of the present invention dynamically adjusts flow chart.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the present invention
Accompanying drawing in embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention, it is clear that
Described embodiment is a part of embodiment of the present invention rather than whole embodiments；It should be noted that
In the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Based on
Embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly fall into the scope of protection of the invention.
In the present embodiment, it is provided that a kind of method dynamically selecting Radio Resource under dual link DC pattern,
Including: MeNB and SeNB passes through X2 interface interacting load information；UE reporting uplink split bearer
Internal storage state report BSR to network side；Described MeNB is according to the load of described MeNB and SeNB
Information and described BSR information, made the judgement dynamically changing Radio Resource, and led to by PDCCH signaling
Know described UE；UE activates corresponding radio-resource-configuration according to described PDCCH signaling.
Said method dynamically can be changed by physical layer signaling according to the loading condition of network side and UE portfolio
Become up split bearer bearing resource, thus improve speed and cell throughout.
In one alternate embodiment, UE reports BSR to which base station of network side is determined by high level configuration.
In one alternate embodiment, when UE reports BSR to SeNB, described SeNB is also described by this
BSR is sent to MeNB.
In one alternate embodiment, the result of judgement includes: MCG side resource and/or SCG side resource.
In one alternate embodiment, the information that PDCCH signaling comprises includes: DRB ID and activation resource
Instruction.
In one alternate embodiment, described PDCCH signaling is carried multiple data radio bearers resource swash
Life makes, and described UE is made a distinction by described DRB ID.
In one alternate embodiment, also including: in the initialization procedure of described DC, network side is simultaneously
The MCG side of configuration split bearer and SCG side ascending resource, described UE is according to RRC configuration instruction
Default activation MCG side ascending resource or SCG side ascending resource.
In one alternate embodiment, also include: in a dc mode, described UE, MeNB and SeNB
Repeatedly carry out aforesaid operations process.
Below in conjunction with Fig. 1, preferred embodiment is illustrated.
A.UE is in connection status and locates DC pattern, during DC configures, for split bearer
It is configured with SCG side and the ascending resource of MCG side simultaneously, and according to RRC configuration instruction default activation pair
The SCG side answered or the ascending resource of MCG side.
Interacting load information between b.MeNB and SeNB.
C.UE reports BSR to corresponding network node, and such as MeNB or SeNB or both sides are
There is feedback.
If d. the BSR of UE feedback sends and gives SeNB, then this BSR information is sent to by SeNB
MeNB。
The e.MeNB load information according to MeNB and SeNB and the BSR of UE, make dynamically change
The judgement of more Radio Resource, and signaled to UE by PDCCH.
The information comprised in PDCCH signaling has DRB id, activates resource and indicates, such as MCG side resource,
Or SCG side resource, or MCG and SCG side resource.This PDCCH signaling can be taken simultaneously
The dynamic activation command of resource with multiple DRB, UE is distinguished by DRB id.
The ascending resource change about the split bearer specifying DRB that f.UE is given according to MeNB,
Select to activate corresponding wireless uplink resource.
UE, MeNB and SeNB constantly repeat said process step b～f, thus root during realizing DC
The dynamic adjustment of ascending resource is carried out according to offered load and portfolio.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can
Completing with the hardware relevant by programmed instruction, aforesaid program can be stored in an embodied on computer readable and deposit
In storage media, this program upon execution, performs to include the step of said method embodiment；And aforesaid storage
Medium includes: the various media that can store program code such as ROM, RAM, magnetic disc or CD.
Last it is noted that above example is only in order to illustrate technical scheme, rather than it is limited
System；Although the present invention being described in detail with reference to previous embodiment, those of ordinary skill in the art
It is understood that the technical scheme described in foregoing embodiments still can be modified by it, or to it
Middle part technical characteristic carries out equivalent；And these amendments or replacement, do not make appropriate technical solution
Essence departs from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. the method dynamically selecting Radio Resource under a dual link DC pattern, it is characterised in that including:
MeNB and SeNB passes through X2 interface interacting load information；
The internal storage state report BSR of UE reporting uplink split bearer is to network side；
Described MeNB, according to the load information of described MeNB and SeNB and described BSR information, makes
Dynamically change the judgement of Radio Resource, and signal described UE by PDCCH；
UE activates corresponding radio-resource-configuration according to described PDCCH signaling.
Method the most according to claim 1, it is characterised in that described UE reports BSR to network
Which base station of side is determined by high level configuration.
Method the most according to claim 1 and 2, it is characterised in that also include: on described UE
When reporting BSR to SeNB, this described BSR is also sent to MeNB by described SeNB.
Method the most according to claim 1, it is characterised in that the result of described judgement includes: MCG
Side resource and/or SCG side resource.
Method the most according to claim 1, it is characterised in that described PDCCH signaling comprises
Information includes: DRB ID and activation resource instruction.
Method the most according to claim 5, it is characterised in that carry in described PDCCH signaling
Multiple data radio bearers resource active orders, described UE is made a distinction by described DRB ID.
Method the most according to claim 1, it is characterised in that also include:
In the initialization procedure of described DC, network side configures MCG side and the SCG of split bearer simultaneously
Side ascending resource, described UE is according to RRC configuration instruction default activation MCG side ascending resource or SCG
Side ascending resource.
Method the most according to claim 1, it is characterised in that also include: in a dc mode,
Described UE, MeNB and SeNB carry out aforesaid operations process many times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510335098.0A CN106332046A (en) | 2015-06-16 | 2015-06-16 | Method of dynamically selecting wireless resources in dual-connectivity DC mode |
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| CN201510335098.0A CN106332046A (en) | 2015-06-16 | 2015-06-16 | Method of dynamically selecting wireless resources in dual-connectivity DC mode |
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| WO2018170923A1 (en) * | 2017-03-24 | 2018-09-27 | Nokia Technologies Oy | Packet data convergence protocol windows with split bearers |
| WO2018201878A1 (en) * | 2017-05-04 | 2018-11-08 | 中兴通讯股份有限公司 | Method and device for determining load configuration and sending information, primary base station and auxiliary base station |
| WO2019029664A1 (en) * | 2017-08-10 | 2019-02-14 | 中兴通讯股份有限公司 | Multi-connection communication indication method and execution method, corresponding device and system |
| WO2019047124A1 (en) * | 2017-09-07 | 2019-03-14 | Oppo广东移动通信有限公司 | Data transmission method and terminal device |
| WO2019095635A1 (en) * | 2017-11-15 | 2019-05-23 | Oppo广东移动通信有限公司 | Data duplication transmission control method, user equipment, and node |
| WO2019161742A1 (en) * | 2018-02-24 | 2019-08-29 | 维沃移动通信有限公司 | Secondary cell group maintenance method, terminal device, and network node |
| CN110461048A (en) * | 2018-05-08 | 2019-11-15 | 中国移动通信有限公司研究院 | A kind of method and user equipment adjusting traffic handling capability |
| CN110831256A (en) * | 2018-08-09 | 2020-02-21 | 中兴通讯股份有限公司 | Method and device for recovering data radio bearer, storage medium and electronic device |
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Cited By (23)
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| US11018984B2 (en) | 2017-03-24 | 2021-05-25 | Nokia Technologies Oy | Packet data convergence protocol windows with split bearers |
| WO2018170923A1 (en) * | 2017-03-24 | 2018-09-27 | Nokia Technologies Oy | Packet data convergence protocol windows with split bearers |
| WO2018201878A1 (en) * | 2017-05-04 | 2018-11-08 | 中兴通讯股份有限公司 | Method and device for determining load configuration and sending information, primary base station and auxiliary base station |
| CN109246833A (en) * | 2017-05-04 | 2019-01-18 | 中兴通讯股份有限公司 | Carrying configures determining, method for sending information and device, master base station and prothetic group station |
| CN109246833B (en) * | 2017-05-04 | 2024-02-06 | 中兴通讯股份有限公司 | Bearer configuration determination method, bearer configuration information sending method, bearer configuration determination device, bearer configuration information sending device, main base station and auxiliary base station |
| WO2019029664A1 (en) * | 2017-08-10 | 2019-02-14 | 中兴通讯股份有限公司 | Multi-connection communication indication method and execution method, corresponding device and system |
| WO2019047124A1 (en) * | 2017-09-07 | 2019-03-14 | Oppo广东移动通信有限公司 | Data transmission method and terminal device |
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| WO2019095635A1 (en) * | 2017-11-15 | 2019-05-23 | Oppo广东移动通信有限公司 | Data duplication transmission control method, user equipment, and node |
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| CN111052853A (en) * | 2017-11-15 | 2020-04-21 | Oppo广东移动通信有限公司 | Control method, user equipment and node for data replication transmission |
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| WO2019161742A1 (en) * | 2018-02-24 | 2019-08-29 | 维沃移动通信有限公司 | Secondary cell group maintenance method, terminal device, and network node |
| CN110461048A (en) * | 2018-05-08 | 2019-11-15 | 中国移动通信有限公司研究院 | A kind of method and user equipment adjusting traffic handling capability |
| CN110461048B (en) * | 2018-05-08 | 2022-06-07 | 中国移动通信有限公司研究院 | Method for adjusting communication processing capability and user equipment |
| CN110831256A (en) * | 2018-08-09 | 2020-02-21 | 中兴通讯股份有限公司 | Method and device for recovering data radio bearer, storage medium and electronic device |
| CN110831256B (en) * | 2018-08-09 | 2024-03-15 | 中兴通讯股份有限公司 | Method and device for recovering data radio bearer, storage medium and electronic device |
| WO2020125125A1 (en) * | 2018-12-20 | 2020-06-25 | 中兴通讯股份有限公司 | Method and device for determining data transmission channel, electronic apparatus, and readable medium |
| CN111787621B (en) * | 2019-02-13 | 2023-07-14 | Oppo广东移动通信有限公司 | Bearer configuration method and device and network equipment |
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| CN112020099B (en) * | 2019-05-31 | 2022-05-20 | 大唐移动通信设备有限公司 | Uplink data distribution method and device |
| CN112020099A (en) * | 2019-05-31 | 2020-12-01 | 大唐移动通信设备有限公司 | Uplink data distribution method and device |
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Application publication date: 20170111 |