CN103889003B - Cut-in method, access network and the aggregation gateway of long-term evolving network - Google Patents
Cut-in method, access network and the aggregation gateway of long-term evolving network Download PDFInfo
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- CN103889003B CN103889003B CN201210560517.7A CN201210560517A CN103889003B CN 103889003 B CN103889003 B CN 103889003B CN 201210560517 A CN201210560517 A CN 201210560517A CN 103889003 B CN103889003 B CN 103889003B
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Abstract
The invention discloses a kind of cut-in method of long-term evolving network, access network and aggregation gateways.LTE network provided by the present invention includes aggregation gateway and multiple micro-base stations, and aggregation gateway is connected with multiple micro-base stations.This method includes：Any one or multiple micro-base stations in multiple micro-base stations send control face data to aggregation gateway；Aggregation gateway receives control face data, and polymerization control face data is sent to the mobile management entity of core net；And aggregation gateway receives the control face data that mobile management entity is sent to one or more micro-base stations in multiple micro-base stations, is distributed to corresponding micro-base station.By technical solution provided by the present invention, logic interfacing number and Signalling exchange between access net and core net are reduced, saves resources of core network.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of cut-in method of long-term evolving network, access network with
Aggregation gateway.
Background technology
In the case of being limited in frequency spectrum resource, the sharp increase of Future Data flow, Microcell are successfully managed
(Small Cell) enhancing technology, which becomes long term evolution, enhances (Long Term Evolution-Advanced, LTE-A) version
12 and follow-up evolution in effective solution.
For Microcell, since micro-base station transmission power is relatively low and potential application carrier frequency is higher, coverage area is much smaller than
Macrocell.Therefore, it for the typical cases scene such as hot spot city and shopping mall area, needs to dispose more Microcell, to protect
Demonstrate,prove effective covering of above-mentioned zone and rate enhancing.
As shown in Figure 1, the existing wireless access networks of LTE-A are only made of base station (eNodeB), by X2 logics between base station
Interface is attached, while base station is attached by S1 interfaces with core net.When having more micro-base station in network, if
Using existing framework, each micro-base station needs directly to be attached with core net, causes micro-base station and core network element S1 logic interfacings
Number and Signalling exchange largely rise, and lead to mobile management entity (Mobility Management Entity, MME)
Management operating burden sharply increases.Particularly, when needing to dispose more Microcell, greater number of micro-base station will be used,
Cause more with the logic interfacing number of core net, Signalling exchange, not only occupy more resources of core network and be difficult into
Row centralized management.
Invention content
One side according to embodiments of the present invention, a technical problem to be solved are：A kind of long term evolution is provided
Cut-in method, access network and the aggregation gateway of network, reduce the logic interfacing number and Signalling exchange with core net, save core
Heart net resource.
A kind of cut-in method of LTE network provided in an embodiment of the present invention, the LTE network include aggregation gateway with it is multiple
Micro-base station, the aggregation gateway are connected with the multiple micro-base station, the method includes：
Any one or multiple micro-base stations in the multiple micro-base station are by S1-MME interface to the aggregation gateway
Send control face data；
The aggregation gateway receives the control face data, polymerize the control face data, is sent by S1-MME interface
To the mobile management entity of core net；And
The aggregation gateway receives the mobile management entity by S1-MME interface and is sent in the multiple micro-base station
The control face data of one or more micro-base stations is distributed to corresponding micro-base station by S1-MME interface.
Preferably, the method further includes：
Any one or multiple micro-base stations in the multiple micro-base station are sent out by S1-U interface to the aggregation gateway
Send user face data；
The aggregation gateway receives the user face data, polymerize the user face data, and send by S1-U interface
To the gateway of core net；And
The aggregation gateway by S1-U interface receive the gateway be sent in the multiple micro-base station one or
The user face data of multiple micro-base stations is distributed to corresponding micro-base station by S1-U interface.
Preferably, the method further includes：
The micro-base station sends user face data by S1-U interface to the gateway of core net；And
The micro-base station receives the user face data of gateway transmission by S1-U interface.
Preferably, the method further includes：
The aggregation gateway is according to the network load amount of the multiple micro-base station, to the radio resource of the multiple micro-base station
Coordinated.
Preferably, the aggregation gateway is according to the network load amount of the multiple micro-base station, to the multiple micro-base station
Radio resource is coordinated, and specifically includes：
The aggregation gateway identifies the magnitude relationship of network load and predetermined threshold from the multiple micro-base station；
It is more than or equal to the predetermined threshold in response to the network load for identifying micro-base station, is full using the micro-base station
Micro-base station is loaded, the aggregation gateway notifies the adjacent micro-base station of the full load micro-base station, so that the adjacent micro-base station
The non-cell edge user terminal that usable radio resources are scheduled to the adjacent micro-base station uses；
It is less than the predetermined threshold in response to the network load for identifying micro-base station, using the micro-base station as non-full load base
It stands, the aggregation gateway notifies the adjacent micro-base station of the non-full load micro-base station, so that the adjacent micro-base station will be different
Usable radio resources dispatch the cell edge user terminal of the adjacent micro-base station and use.
Preferably, the method further includes：
The micro-base station sends micro-base station handover information to the aggregation gateway, and the micro-base station handover information includes switching
Request message, ability information of user terminal, user terminal radio configuration contextual information in any one or it is a variety of；
The micro-base station handover information is transmitted to corresponding micro-base station by the aggregation gateway.
Preferably, the aggregation gateway is multiple, and the method further includes：
Any two aggregation gateway in the multiple aggregation gateway is respectively connected to described two by X2 interface transmission
Micro-base station handover information between the micro-base station of aggregation gateway.
Preferably, the method further includes：
The aggregation gateway is respectively connected to the aggregation gateway and the macro base station by X2 interface and macro base station transmission
Micro-base station between micro-base station handover information.
The aggregation gateway of a kind of LTE network provided according to embodiments of the present invention, the aggregation gateway and multiple micro-base stations
It is connected, the aggregation gateway includes：
Control plane data processing unit for receiving the control face data of micro-base station transmission, polymerize the control face data；
And give the control plane data distribution for being sent to micro-base station received from mobile management entity to corresponding micro-base station；
Control plane data transceiving unit, the mobile management that core net is sent to for the control face data after polymerizeing are real
Body；And receive the control face data that mobile management entity is sent to micro-base station；
Wherein, control plane is carried out by S1-MME interface between the control plane data processing unit and the micro-base station
The transmission of data；Control face data is carried out by S1-MME interface between the Transmit-Receive Unit and the mobile management entity
It transmits.
Preferably, the aggregation gateway further includes：
User face data processing unit for receiving the user face data of micro-base station transmission, polymerize the user face data；
And the user face data for being sent to micro-base station received from gateway is distributed to corresponding micro-base station；
User face data Transmit-Receive Unit, for the user face data after polymerizeing to be sent to the gateway of core net；With
And receive the user face data that gateway is sent to micro-base station；
Wherein, user plane number is carried out by S1-U interface between the user face data processing unit and the micro-base station
According to transmission；User face data is carried out by S1-U interface between the user face data Transmit-Receive Unit and the gateway
Transmission.
Preferably, the aggregation gateway further includes：
Interference coordination unit, for the network load amount according to the multiple micro-base station, to the nothing of the multiple micro-base station
Line resource is coordinated.
Preferably, the interference coordination unit, specifically for from the multiple micro-base station, identification network load is with making a reservation for
The magnitude relationship of threshold value；It is more than or equal to the predetermined threshold in response to the network load for identifying micro-base station, with described micro-
Base station is full load micro-base station, and the aggregation gateway notifies the adjacent micro-base station of the full load micro-base station, so that the phase
The non-cell edge user terminal that usable radio resources are scheduled to the adjacent micro-base station by adjacent micro-base station uses；In response to identification
The network load for going out micro-base station is less than the predetermined threshold, and using the micro-base station as non-full loaded base station, the aggregation gateway is led to
The adjacent micro-base station of the non-full load micro-base station is known, so that the adjacent micro-base station dispatches different usable radio resources
The cell edge user terminal of the adjacent micro-base station uses.
Preferably, the aggregation gateway further includes：
Handover information transfer unit, for transmitting micro-base station handover information, the micro-base station switching letter for multiple micro-base stations
Breath include handover request message, ability information of user terminal, user terminal radio configuration contextual information in any one
It is or a variety of.
Preferably, the aggregation gateway further includes：
X2 interface unit, between adjacent aggregation gateway, the convergence to be respectively connected to by X2 interface transmission
Micro-base station handover information between the micro-base station of gateway and the adjacent aggregation gateway.
Preferably, the X2 interface unit, is additionally operable between macro base station, is respectively connected to by X2 interface transmission described
Micro-base station handover information between aggregation gateway and the micro-base station of the macro base station.
A kind of LTE access networks provided according to embodiments of the present invention, the network include aggregation gateway, multiple micro- bases
It stands, the aggregation gateway is connected with the multiple micro-base station, wherein：
The aggregation gateway, for receiving the control face data that the micro-base station is sent；It polymerize the control face data, and
It is sent to the mobile management entity of core net；And it receives the mobile management entity and is sent in the multiple micro-base station one
Or the control face data of multiple micro-base stations, it is distributed to corresponding micro-base station；
Any one micro-base station in the multiple micro-base station, for sending control face data to the aggregation gateway；It connects
Receive the control face data for coming from mobile management entity transmission of the aggregation gateway distribution；
The transmission of control face data is carried out between the aggregation gateway and the micro-base station by S1-MME interface；It is described
The transmission of control face data is carried out between aggregation gateway and the mobile management entity by S1-MME interface.
Preferably, the aggregation gateway is additionally operable to receive the user face data that the micro-base station is sent；It polymerize the user
Face data, and it is sent to the gateway of core net；And it receives the gateway and is sent to one in the multiple micro-base station
The user face data of a or multiple micro-base stations, is distributed to corresponding micro-base station.
Wherein, the transmission of user face data is carried out between the aggregation gateway and the micro-base station by S1-U interface；Institute
State the transmission for carrying out user face data between aggregation gateway and the mobile management entity by S1-U interface.
Preferably, the micro-base station is additionally operable to send user plane number to the gateway of core net by S1-U interface
According to；The user face data of the gateway transmission is received by S1-U interface.
Preferably, the aggregation gateway, specifically in the multiple micro-base station, identifying network load and predetermined threshold
Magnitude relationship；
It is more than or equal to the predetermined threshold in response to the network load for identifying micro-base station, is full using the micro-base station
Micro-base station is loaded, notifies the adjacent micro-base station of the full load micro-base station, so that the adjacent micro-base station scheduling is described adjacent
The cell edge user terminal of micro-base station uses the radio resource different from the full load micro-base station；
It is less than the predetermined threshold in response to the network load for identifying micro-base station, using the micro-base station as non-full load base
It stands, notifies the adjacent micro-base station of the non-full load micro-base station, so that the adjacent micro-base station dispatches the adjacent micro-base station
Cell edge user terminal use the radio resource different from the non-full load micro-base station.
Preferably, the aggregation gateway is additionally operable to transmit micro-base station handover information, micro- base for the multiple micro-base station
Handover information of standing include handover request message, ability information of user terminal, user terminal radio configuration contextual information in
Any one is a variety of；
The multiple micro-base station is additionally operable to send micro-base station handover information to the aggregation gateway；Or receive the remittance
The handover request message of poly- gateway forwards.
Preferably, the network includes multiple aggregation gateways, any two convergence in the multiple aggregation gateway
Gateway, the micro-base station for being additionally operable to be respectively connected between the micro-base station of described two aggregation gateways by X2 interface transmission switch letter
Breath.
Preferably, the network further includes：
Macro base station establishes connection for passing through X2 interface with the aggregation gateway；
The aggregation gateway, be additionally operable to by the transmission of X2 interface and macro base station be respectively connected to the aggregation gateway with it is described
Micro-base station handover information between the micro-base station of macro base station.
Preferably, the micro-base station is low power nodes LPN, specifically includes long-distance radio frequency unit RU/RRH, micro-base station
Micro base stations, femto base station Pico base stations, Home eNodeB Femto base stations, relay node Relay Node.
The cut-in method of long-term evolving network, access network and the aggregation gateway provided based on the above embodiment of the present invention,
Core network access again after multiple micro-base stations are polymerize by aggregation gateway, compared with existing scheme, can significantly reduce access net
Logic interfacing number and Signalling exchange between core net save resources of core network.For the more micro-base station deployment of following LTE
Scene, by effectively reducing logic interfacing number and Signalling exchange between access net and core net, moreover it is possible to by aggregation gateway
Realize the centralized management and optimization to micro-base station.
In addition, multiple micro-base stations polymerize by aggregation gateway after core network access again, moreover it is possible to reduce micro-base station to core
The influence of heart net.For example, when micro-base station frequently switches on, due to not being connected with core net directly, the switch of micro-base station will not band
Carry out relevant string Flow Control Transmission Protocol (Stream Control Transmission Protocol, the SCTP) connections of MME to build
Vertical and release, so as to avoid the operation of micro-base station to the influence of core net.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Simultaneously, it should be appreciated that for ease of description, the size of the various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need to that it is further discussed.
The attached drawing of a part for constitution instruction describes the embodiment of the present invention, and is used to solve together with the description
Release the principle of the present invention.
With reference to attached drawing, according to following detailed description, the present invention can be more clearly understood, wherein：
Fig. 1 shows the access network diagram of existing long-term evolving network；
Fig. 2 shows a kind of flow diagrams of embodiment of cut-in method of long-term evolving network provided by the present invention；
Fig. 3 shows the flow diagram of the cut-in method another kind embodiment of long-term evolving network provided by the present invention；
Fig. 4 shows the flow diagram of another embodiment of the cut-in method of long-term evolving network provided by the present invention；
Fig. 5 shows a kind of structure diagram of embodiment of the aggregation gateway of long-term evolving network provided by the present invention；
Fig. 6 shows a kind of structure diagram for applying example of access network of long-term evolving network provided by the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It should note
It anticipates and arrives：Unless specifically stated otherwise, the component and the positioned opposite of step otherwise illustrated in these embodiments does not limit this hair
Bright range.
It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to the present invention
And its application or any restrictions that use.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
All other embodiments obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
In shown here and discussion all examples, any occurrence should be construed as merely illustrative, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
In various embodiments of the present invention, by increasing aggregation gateway in LTE wireless access networks, so as to which LTE be made to access net
Aggregation gateway and two kinds of base station node are contained, wherein, aggregation gateway, can be with macro base station in same physics as logic entity
It is physically wholely set or individual physical entity.Base station includes macro base station, micro-base station etc., the transmission power of micro-base station
Less than macro base station.It is connected between aggregation gateway and multiple micro-base stations by establishing corresponding logic interfacing.
Micro-base station in various embodiments of the present invention can be various low power nodes (Lower Power Node, LPN), example
Such as long-distance radio frequency unit (Remote Radio Unit/Remote Radio Head, RU/RRH), micro- (Micro) base station, pico-
(Pico) base station, Home eNodeB (Femto), relay node (Relay Node).
Shown in Figure 2, Fig. 2 shows a kind of streams of embodiment of cut-in method of long-term evolving network provided by the present invention
Journey schematic diagram.LTE network includes aggregation gateway and multiple micro-base stations, and aggregation gateway is connected with multiple micro-base stations, the embodiment
Cut-in method includes：
201, any one or multiple micro-base stations in multiple micro-base stations are sent by S1-MME interface to aggregation gateway
Control face data；
202, aggregation gateway receives control face data, and polymerization control face data is sent to core net by S1-MME interface
Mobile management entity；And
203 aggregation gateways receive mobile management entity by S1-MME interface and are sent in multiple micro-base stations one or more
The control face data of a micro-base station is distributed to corresponding micro-base station by S1-MME interface.
The operation of above-mentioned 201-202 can be performed with 203 operation operated simultaneously, prior to or after 203.
In the method that the above embodiment of the present invention provides, multiple micro-base stations access core again after being polymerize by aggregation gateway
Heart net compared with existing scheme, can significantly reduce logic interfacing number and Signalling exchange between access net and core net, reduction pair
Core network element resource saves resources of core network.
The micro-base station of aggregation gateway connection transmits control face data by converging net and core net, and user face data can
To be transmitted by aggregation gateway and core net, it is also possible to directly be transmitted without aggregation gateway with core net.For
Micro-base station, with the presence or absence of aggregation gateway can be in network it is transparent, micro-base station not in sensing network with the presence or absence of aggregation gateway,
So that it is not distinguished in micro-base station processing operation.
Shown in Figure 3, Fig. 3 shows the cut-in method another kind embodiment of long-term evolving network provided by the present invention
Flow diagram.A user face data of embodiment is transmitted by aggregation gateway and core net according to the method for the present invention
Specific example, this method can also include compared with Fig. 2 embodiments：
301, any one or multiple micro-base stations in multiple micro-base stations are sent to aggregation gateway by S1-U interface and used
Family face data；
302, aggregation gateway receives user face data, syndication users face data, and passes through S1-U interface and be sent to core net
Gateway (Service-Gateway, S-GW)；And
303, aggregation gateway receives gateway by S1-U interface and is sent in multiple micro-base stations one or more micro- bases
The user face data stood is distributed to corresponding micro-base station by S1-U interface.
The operation of above-mentioned 301-302 can be performed with 303 operation operated simultaneously, prior to or after 303.In Fig. 3
S1 interfaces include S1-MME and S1-U interface.
Shown in Figure 4, Fig. 4 shows another embodiment of the cut-in method of long-term evolving network provided by the present invention
Flow diagram.What a user face data of embodiment was directly transmitted with core net according to the method for the present invention specifically shows
Example, this method can also include compared with Fig. 2 embodiments：
401, micro-base station sends user face data by S1-U interface to the gateway of core net；And
402, micro-base station receives the user face data of gateway transmission by S1-U interface.
A specific example of embodiment, this method further include according to the method for the present invention：
Aggregation gateway coordinates the radio resource of multiple micro-base stations according to the network load amount of multiple micro-base stations.Show
Example property, the radio resource of multiple micro-base stations can be coordinated by following operation aggregation gateway：
Aggregation gateway identifies the magnitude relationship of network load and predetermined threshold from multiple micro-base stations；
It is more than or equal to predetermined threshold in response to the network load for identifying micro-base station, using micro-base station as the micro- base of full load
It stands, aggregation gateway notifies the adjacent micro-base station of full load micro-base station, so that usable radio resources are scheduled to by adjacent micro-base station
The non-cell edge user terminal of adjacent micro-base station uses；It is less than predetermined threshold in response to the network load for identifying micro-base station,
Using micro-base station as non-full loaded base station, aggregation gateway notifies the adjacent micro-base station of non-full load micro-base station, so that adjacent micro- base
It stands and different usable radio resources is dispatched to the cell edge user terminal use of adjacent micro-base station.
Based on above-described embodiment, for the multiple micro-base stations being connected with same aggregation gateway, aggregation gateway is according to each micro-
The physical load of base station carries out the coordination of scheduling of resource, realizes interference coordination.When micro-base station full load, due to the micro-base station
Need to dispatch all radio resources for user service, therefore, aggregation gateway notifies the adjacent micro-base station of the micro-base station, so that
The non-cell edge user terminal that usable radio resources are scheduled to adjacent micro-base station by adjacent micro-base station uses, so as to avoid phase
Multiple Cell Edge User of adjacent micro-base station are dispatched on identical radio resource, cause signal interference.When micro-base station is non-full negative
During load, then adjacent micro-base station can be allowed to be dispatched to user on different radio resources, to reduce interference.Radio resource can with when
Different time-domain resources or frequency domain resource.
A specific example of embodiment, this method further include according to the method for the present invention：
Micro-base station sends micro-base station handover information to aggregation gateway, and micro-base station handover information includes handover request message, uses
Family terminal ability information, user terminal radio configuration contextual information in any one or it is a variety of；Aggregation gateway will be micro-
Switching information of base station is transmitted to corresponding micro-base station.
In existing LTE frameworks, the X2 interface between micro-base station is switched, is needed between source base station and target BS
Transmit base station handover relevant information.Compared with existing scheme, in the above-described embodiments, X2 can not be passed through between multiple micro-base stations
Interface is attached.Micro-base station is connected with aggregation gateway, and the switching that can be completed by aggregation gateway between related micro-base station is believed
Breath transmits, so as to effectively reduce X2 interface and physical connection number.
A specific example of embodiment according to the method for the present invention, aggregation gateway can be multiple, and this method further includes：It is more
Any two aggregation gateway in a aggregation gateway, by X2 interface transmission be respectively connected to two aggregation gateways micro-base station it
Between micro-base station handover information.
Due to being accessed in network in existing LTE, micro-base station needs to use X2 with neighbouring a large amount of macro base stations or micro-base station
Interface is connected, physical connection and logic interfacing huge amount between these base stations.By above-described embodiment, do not have between micro-base station
It establishes X2 interface two-by-two each other, but by transmitting handover relevant information between aggregation gateway, can significantly reduce between base station
Logic interfacing and physical connection number.
A specific example of embodiment, this method further include according to the method for the present invention：
Aggregation gateway is respectively connected to by X2 interface and macro base station transmission between aggregation gateway and the micro-base station of macro base station
Micro-base station handover information.
Similarly, in existing LTE frameworks, micro-base station needs are connect with neighbouring a large amount of macro base stations or micro-base station using X2
Mouth is connected, physical connection and logic interfacing huge amount between these base stations.By above-described embodiment, that are not had between micro-base station
This establishes X2 interface two-by-two, but by transmitting handover relevant information between aggregation gateway and macro base station, so as to reduce between base station
Logic interfacing and physical connection number.
The operation of handover information is transmitted between above-mentioned aggregation gateway and neighbouring macro base station or aggregation gateway, needs not move through core
Heart net reduces the load of core net.For example, if user 1 carries out base station switching, the affiliated micro-base station connection of user 1 with user 2
To an aggregation gateway 1, the affiliated micro-base station of user 2 is connected to another aggregation gateway 2 or the own base station of user 2 is
Macro base station 2.If not having X2 interface connection between aggregation gateway 1 and neighbouring macro base station 2 or aggregation gateway 2, which cuts
It is changed to S1 switchings, source base station and target BS are forwarded by S1 interfaces via MME realizes handover request notice and response message
It sends and receives, increases the load of core net.And pass through above-described embodiment, aggregation gateway 1 and neighbouring macro base station 2 or convergence net
The X2 interface connection between 2 is closed, the transmission of handover information is realized, the load of core net can be reduced.
Shown in Figure 5, Fig. 5 shows a kind of knot of embodiment of the aggregation gateway of long-term evolving network provided by the present invention
Structure schematic diagram.Aggregation gateway in the embodiment is connected with multiple micro-base stations, and the aggregation gateway of LTE network includes：
Control plane data processing unit 501, for receiving the control face data of micro-base station transmission, polymerization control face data；
And give the control plane data distribution for being sent to micro-base station received from mobile management entity to corresponding micro-base station；
Control plane data transceiving unit 502 is sent to the mobile management of core net for the control face data after polymerizeing
Entity；And receive the control face data that mobile management entity is sent to micro-base station.
The biography of control face data can be carried out between control plane data processing unit and micro-base station by S1-MME interface
It passs；The transmission of control face data is carried out between Transmit-Receive Unit and mobile management entity by S1-MME interface.
Aggregation gateway can be wholely set or be separately provided with the macro base station in existing network.
According to a specific example of aggregation gateway embodiment of the present invention, aggregation gateway can also include：
User face data processing unit 503, for receiving the user face data of micro-base station transmission, syndication users face data；
And the user face data for being sent to micro-base station received from gateway is distributed to corresponding micro-base station；
User face data Transmit-Receive Unit 504, for the user face data after polymerizeing to be sent to the gateway of core net；
And receive the user face data that gateway is sent to micro-base station.
The transmission of user face data can be carried out between user face data processing unit and micro-base station by S1-U interface；
The transmission of user face data is carried out between user face data Transmit-Receive Unit and gateway by S1-U interface.
According to a specific example of aggregation gateway embodiment of the present invention, aggregation gateway can also include：
Interference coordination unit 505, for the network load amount according to multiple micro-base stations, to the radio resource of multiple micro-base stations
Coordinated.
Illustratively, interference coordination unit 505 is specifically used for from multiple micro-base stations, identifies network load and predetermined threshold
Magnitude relationship；It is more than or equal to predetermined threshold in response to the network load for identifying micro-base station, using micro-base station as full load
Micro-base station, aggregation gateway notify the adjacent micro-base station of full load micro-base station, so that adjacent micro-base station is by usable radio resources tune
It spends to the non-cell edge user terminal use of adjacent micro-base station；It is less than predetermined threshold in response to the network load for identifying micro-base station
Value, using micro-base station as non-full loaded base station, aggregation gateway notifies the adjacent micro-base station of non-full load micro-base station, so that adjacent micro-
The cell edge user terminal that different usable radio resources are dispatched adjacent micro-base station by base station uses.
According to a specific example of aggregation gateway embodiment of the present invention, aggregation gateway can also include：
Handover information transfer unit 506, for transmitting micro-base station handover information, micro-base station handover information for multiple micro-base stations
Including handover request message, ability information of user terminal, user terminal radio configuration contextual information in any one or
Person is a variety of.
According to a specific example of aggregation gateway embodiment of the present invention, aggregation gateway can also include：
X2 interface unit 507, between adjacent aggregation gateway, convergence net to be respectively connected to by X2 interface transmission
Close the micro-base station handover information between the micro-base station of adjacent aggregation gateway.
According to a specific example of aggregation gateway embodiment of the present invention, X2 interface unit 507 be additionally operable to macro base station it
Between, the micro-base station handover information being respectively connected between aggregation gateway and the micro-base station of macro base station is transmitted by X2 interface.X2 connects
Mouth unit 507 can be set in handover information transfer unit 506.
Shown in Figure 6, Fig. 6 shows a kind of structure for applying example of access network of long-term evolving network provided by the present invention
Schematic diagram.It should be noted that in Fig. 6 in addition to aggregation gateway, necessary to part network element not realizes present invention access net,
For example, macro base station and core network element MME and S-GW.
The LTE access networks that the embodiment provides include aggregation gateway 601, multiple micro-base stations 602.Aggregation gateway 601 with
Multiple micro-base stations 602 are connected.
Aggregation gateway 601 is used to receive the control face data of micro-base station transmission；Polymerization control face data, and it is sent to core
The mobile management entity of net；And receive the control that mobile management entity is sent to one or more micro-base stations in multiple micro-base stations
Face data is distributed to corresponding micro-base station；
Any one micro-base station 602 in multiple micro-base stations, for sending control face data to aggregation gateway；Receive convergence
The control face data for coming from mobile management entity transmission of gateway distribution.
The transmission of control face data is carried out between aggregation gateway 601 and micro-base station 602 by S1-MME interface；Converge net
Close the transmission for carrying out control face data by S1-MME interface between mobile management entity.
According to inventive network embodiment specific example, aggregation gateway 601 is additionally operable to receive what micro-base station was sent
User face data；Syndication users face data, and it is sent to the gateway of core net；And receive gateway be sent to it is multiple
The user face data of one or more micro-base stations, is distributed to corresponding micro-base station in micro-base station.Between aggregation gateway and micro-base station
The transmission of user face data is carried out by S1-U interface；It is carried out between aggregation gateway and mobile management entity by S1-U interface
The transmission of user face data.
According to inventive network embodiment specific example, micro-base station 602 is additionally operable to through S1-U interface to core
The gateway of net sends user face data；The user face data of gateway transmission is received by S1-U interface.
According to inventive network embodiment specific example, aggregation gateway 601 is specifically used in multiple micro-base stations,
Identify the magnitude relationship of network load and predetermined threshold；It is more than or equal in response to the network load for identifying micro-base station predetermined
Threshold value using micro-base station as full load micro-base station, notifies the adjacent micro-base station of full load micro-base station, so that adjacent micro-base station is dispatched
The cell edge user terminal of adjacent micro-base station uses the radio resource different from full load micro-base station；
It is less than predetermined threshold in response to the network load for identifying micro-base station, using micro-base station as non-full loaded base station, notice
The adjacent micro-base station of non-full load micro-base station, so that the cell edge user terminal that adjacent micro-base station dispatches adjacent micro-base station makes
With the radio resource different from non-full load micro-base station.
According to inventive network embodiment specific example, aggregation gateway 601 is additionally operable to transmit for multiple micro-base stations
Micro-base station handover information, micro-base station handover information include handover request message, ability information of user terminal, user terminal it is wireless
Be configured contextual information in any one or it is a variety of；Multiple micro-base stations 602 are additionally operable to cut to aggregation gateway transmission micro-base station
Change information；Or receive the handover request message of aggregation gateway forwarding.
According to inventive network embodiment specific example, which includes multiple aggregation gateways, multiple convergence nets
Any two aggregation gateway in the Central Shanxi Plain is additionally operable to be respectively connected between the micro-base station of two aggregation gateways by X2 interface transmission
Micro-base station handover information.
According to inventive network embodiment specific example, which further includes：
Macro base station 603 establishes connection for passing through X2 interface with aggregation gateway；
Aggregation gateway 601 is additionally operable to be respectively connected to aggregation gateway and macro base station by X2 interface and the transmission of macro 603 station of base
Micro-base station between micro-base station handover information.
Net is accessed as 2 aggregation gateways (as shown in Fig. 6 interior joints 1 and node 2), 2 macro bases in the LET that Fig. 6 is shown
It stands (as shown in Fig. 6 interior joints 1 and node 3), 8 micro-base station (as shown in micro-base station 1-8 in Fig. 6) compositions.
Node 1 is macro base station and the physical entity of aggregation gateway co-sited, and node 2 is the physical entity for realizing aggregation gateway,
Node 3 is macro base station physical entity.MME and S-GW represents the mobile management entity and gateway of core net respectively.
Micro-base station 1,2,3,4 is connected by S1 interfaces with node 1, and micro-base station 5,6,7,8 passes through S1 interfaces and 2 phase of node
Even.Node 1,2,3 is connected by S1 interfaces with the MME and S-GW of core net.Connected between node 1,2,3 by X2 interface
It connects.It can be attached by X2 interface between micro-base station, such as micro-base station 2 in Fig. 6 and micro-base station 3, can not also be attached,
Such as micro-base station 1 in Fig. 6 and micro-base station 2.
According to said one embodiment, aggregation gateway can provide the polymerization of S1 Interface Controllers face data and user face data
Distribution.Therefore, the control face data of the micro-base station being attached with aggregation gateway and user face data by the aggregation gateway into
Row polymerization distribution.According to another above-mentioned embodiment, aggregation gateway can also only provide the polymerization point of S1 Interface Controller face datas
Hair, for the micro-base station being attached with aggregation gateway, control face data sends core net to by aggregation gateway；Its user
Face data needs not move through aggregation gateway, is transmitted directly to core net.
So far, be described in detail a kind of long-term evolving network according to the present invention cut-in method, access network with
Aggregation gateway.In order to avoid the design of the masking present invention, some details known in the field are not described.People in the art
Member as described above, can be appreciated how to implement technical solution disclosed herein completely.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with its
The difference of its embodiment, the same or similar part cross-reference between each embodiment.For access network with
For aggregation gateway embodiment, since it is substantially corresponding with embodiment of the method, so description is fairly simple, related part referring to
The part explanation of embodiment of the method.
The cut-in method, access network and convergence net of the long-term evolving network of the present invention may be achieved in many ways
It closes.For example, it can realize that the long-term of the present invention is drilled by any combinations of software, hardware, firmware or software, hardware, firmware
Cut-in method, access network and aggregation gateway into network.The said sequence of the step of for the method is merely to carry out
Illustrate, the step of method of the invention is not limited to sequence described in detail above, unless specifically stated otherwise.In addition,
In some embodiments, the present invention can be also embodied as recording program in the recording medium, these programs include being used to implement
Machine readable instructions according to the method for the present invention.Thus, the present invention also covering storage is used to perform according to the method for the present invention
Program recording medium.
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that above example merely to illustrating, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above example.This hair
Bright range is defined by the following claims.
Claims (12)
1. a kind of cut-in method of LTE network, which is characterized in that the LTE network includes aggregation gateway and multiple micro-base stations, institute
Aggregation gateway is stated with the multiple micro-base station to be connected, the method includes：
Any one or multiple micro-base stations in the multiple micro-base station are sent by S1-MME interface to the aggregation gateway
Control face data；
The aggregation gateway receives the control face data, polymerize the control face data, core is sent to by S1-MME interface
The mobile management entity of heart net；
The aggregation gateway receives the mobile management entity by S1-MME interface and is sent in the multiple micro-base station one
Or the control face data of multiple micro-base stations, corresponding micro-base station is distributed to by S1-MME interface；
The micro-base station sends micro-base station handover information to the aggregation gateway, and the micro-base station handover information includes handover request
Message, ability information of user terminal, user terminal radio configuration contextual information in any one or it is a variety of；
The micro-base station handover information is transmitted to corresponding micro-base station by the aggregation gateway；
The aggregation gateway identifies the magnitude relationship of network load and predetermined threshold from the multiple micro-base station；
It is more than or equal to the predetermined threshold in response to the network load for identifying micro-base station, using the micro-base station as full load
Micro-base station, the aggregation gateway notify the adjacent micro-base station of the full load micro-base station, so that the adjacent micro-base station can
It is used with non-cell edge user terminal of the wireless resource scheduling to the adjacent micro-base station；
It is less than the predetermined threshold in response to the network load for identifying micro-base station, using the micro-base station as non-full loaded base station,
The aggregation gateway notifies the adjacent micro-base station of the non-full load micro-base station, so that the adjacent micro-base station can by different
The cell edge user terminal of adjacent micro-base station uses described in wireless resource scheduling；
The aggregation gateway is multiple, and the method further includes：
Any two aggregation gateway in the multiple aggregation gateway is respectively connected to described two convergences by X2 interface transmission
Micro-base station handover information between the micro-base station of gateway.
2. according to the method described in claim 1, it is characterized in that, the method further includes：
Any one or multiple micro-base stations in the multiple micro-base station are sent by S1-U interface to the aggregation gateway to be used
Family face data；
The aggregation gateway receives the user face data, polymerize the user face data, and pass through S1-U interface and be sent to core
The gateway of heart net；And
The aggregation gateway receives the gateway by S1-U interface and is sent to one or more in the multiple micro-base station
The user face data of micro-base station is distributed to corresponding micro-base station by S1-U interface.
3. according to the method described in claim 1, it is characterized in that, the method further includes：
The micro-base station sends user face data by S1-U interface to the gateway of core net；And
The micro-base station receives the user face data of gateway transmission by S1-U interface.
4. according to the method described in claim 1, it is characterized in that, the method further includes：
The aggregation gateway is respectively connected to the micro- of the aggregation gateway and the macro base station by the transmission of X2 interface and macro base station
Micro-base station handover information between base station.
5. a kind of aggregation gateway of LTE network, which is characterized in that the aggregation gateway is connected with multiple micro-base stations, the remittance
Poly- gateway includes：
Control plane data processing unit for receiving the control face data of micro-base station transmission, polymerize the control face data；And
Give the control plane data distribution for being sent to micro-base station received from mobile management entity to corresponding micro-base station；
Control plane data transceiving unit is sent to the mobile management entity of core net for the control face data after polymerizeing；With
And receive the control face data that mobile management entity is sent to micro-base station；
Wherein, control face data is carried out by S1-MME interface between the control plane data processing unit and the micro-base station
Transmission；The transmission of control face data is carried out between the Transmit-Receive Unit and the mobile management entity by S1-MME interface；
Handover information transfer unit, for transmitting micro-base station handover information, the micro-base station handover information packet for multiple micro-base stations
Include handover request message, ability information of user terminal, user terminal radio configuration contextual information in any one or
It is a variety of；
Interference coordination unit, for from the multiple micro-base station, identifying the magnitude relationship of network load and predetermined threshold；Response
It is more than or equal to the predetermined threshold in the network load for identifying micro-base station, using the micro-base station as full load micro-base station,
The aggregation gateway notifies the adjacent micro-base station of the full load micro-base station, so that the adjacent micro-base station provides available wireless
The non-cell edge user terminal that source is scheduled to the adjacent micro-base station uses；Network load in response to identifying micro-base station is small
In the predetermined threshold, using the micro-base station as non-full loaded base station, the aggregation gateway notifies the non-full load micro-base station
Adjacent micro-base station so that different usable radio resources are dispatched the cell of the adjacent micro-base station by the adjacent micro-base station
Edge user terminal uses；
X2 interface unit, between adjacent aggregation gateway, the aggregation gateway to be respectively connected to by X2 interface transmission
Micro-base station handover information between the micro-base station of the adjacent aggregation gateway.
6. aggregation gateway according to claim 5, which is characterized in that the aggregation gateway further includes：
User face data processing unit for receiving the user face data of micro-base station transmission, polymerize the user face data；And
The user face data for being sent to micro-base station received from gateway is distributed to corresponding micro-base station；
User face data Transmit-Receive Unit, for the user face data after polymerizeing to be sent to the gateway of core net；And it connects
Receive the user face data that gateway is sent to micro-base station；
Wherein, user face data is carried out by S1-U interface between the user face data processing unit and the micro-base station
It transmits；The biography of user face data is carried out between the user face data Transmit-Receive Unit and the gateway by S1-U interface
It passs.
7. aggregation gateway according to claim 5, which is characterized in that the X2 interface unit, be additionally operable to macro base station it
Between, the micro-base station being respectively connected to by X2 interface transmission between the aggregation gateway and the micro-base station of the macro base station switches letter
Breath.
8. a kind of LTE accesses network, which is characterized in that the network includes aggregation gateway, multiple micro-base stations, the aggregation gateway
It is connected with the multiple micro-base station, wherein：
The aggregation gateway, for receiving the control face data that the micro-base station is sent；It polymerize the control face data, and sends
To the mobile management entity of core net；And it receives the mobile management entity and is sent in the multiple micro-base station one or more
The control face data of a micro-base station, is distributed to corresponding micro-base station；
Any one micro-base station in the multiple micro-base station, for sending control face data to the aggregation gateway；Receive institute
State the control face data for coming from mobile management entity transmission of aggregation gateway distribution；
The transmission of control face data is carried out between the aggregation gateway and the micro-base station by S1-MME interface；The convergence
The transmission of control face data is carried out between gateway and the mobile management entity by S1-MME interface；
Wherein, the aggregation gateway is additionally operable to transmit micro-base station handover information, the micro-base station switching for the multiple micro-base station
Information include handover request message, ability information of user terminal, user terminal radio configuration contextual information in it is any one
Kind is a variety of；
The multiple micro-base station is additionally operable to send micro-base station handover information to the aggregation gateway；Or receive the convergence net
Close the handover request message of forwarding；
The aggregation gateway, specifically in the multiple micro-base station, identifying the magnitude relationship of network load and predetermined threshold；
It is more than or equal to the predetermined threshold in response to the network load for identifying micro-base station, using the micro-base station as full load
Micro-base station notifies the adjacent micro-base station of the full load micro-base station, so that the adjacent micro-base station dispatches adjacent micro- base
The cell edge user terminal stood uses the radio resource different from the full load micro-base station；
It is less than the predetermined threshold in response to the network load for identifying micro-base station, using the micro-base station as non-full loaded base station,
The adjacent micro-base station of the non-full load micro-base station is notified, so that the adjacent micro-base station dispatches the small of the adjacent micro-base station
Area edge user terminal uses the radio resource different from the non-full load micro-base station；
Wherein, the network includes multiple aggregation gateways, any two aggregation gateway in the multiple aggregation gateway, also
For being respectively connected to the micro-base station handover information between the micro-base station of described two aggregation gateways by X2 interface transmission.
9. network according to claim 8, which is characterized in that the aggregation gateway is additionally operable to receive the micro-base station hair
The user face data sent；It polymerize the user face data, and is sent to the gateway of core net；And receive the service network
The user face data for being sent to one or more micro-base stations in the multiple micro-base station is closed, is distributed to corresponding micro-base station；
Wherein, the transmission of user face data is carried out between the aggregation gateway and the micro-base station by S1-U interface；The remittance
The transmission of user face data is carried out between poly- gateway and the mobile management entity by S1-U interface.
10. network according to claim 8, which is characterized in that the micro-base station is additionally operable to through S1-U interface to core
The gateway of heart net sends user face data；The user face data of the gateway transmission is received by S1-U interface.
11. network according to claim 8, which is characterized in that the network further includes：
Macro base station establishes connection for passing through X2 interface with the aggregation gateway；
The aggregation gateway is additionally operable to be respectively connected to the aggregation gateway and the macro base by X2 interface and macro base station transmission
Micro-base station handover information between the micro-base station stood.
12. according to the network described in claim 8 to 11 any one, which is characterized in that the micro-base station is low power nodes
LPN specifically includes long-distance radio frequency unit RU/RRH, micro-base station Micro base stations, femto base station Pico base stations, Home eNodeB Femto
Base station, relay node Relay Node.
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| CN106851750B (en) * | 2015-12-03 | 2020-06-30 | 大唐移动通信设备有限公司 | Communication method, base station and system |
| CN106941720A (en) * | 2016-01-04 | 2017-07-11 | 中国移动通信集团公司 | A kind of information processing method and small base station system |
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