CN103561481A - Self-establishing method and device for X2 interfaces - Google Patents
Self-establishing method and device for X2 interfaces Download PDFInfo
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- CN103561481A CN103561481A CN201310567717.XA CN201310567717A CN103561481A CN 103561481 A CN103561481 A CN 103561481A CN 201310567717 A CN201310567717 A CN 201310567717A CN 103561481 A CN103561481 A CN 103561481A
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Abstract
The embodiment of the invention provides a self-establishing method and device for X2 interfaces. The method comprises the steps that a wireless network cooperation network element in charge of cooperation with a bearing network sends interconnection requirement applying information to a bearing network cooperation network element to inform the bearing network cooperation network element the X2 interfaces need to be established between which eNodeBs, and the bearing network cooperation network element establishes bearing paths for establishing the X2 interfaces between the eNodeBs. Thus, the X2 interfaces can be automatically established in a dynamic mode, and the complexity and the cost for establishing the X2 interfaces in a static mode are reduced.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of X2 interface from method for building up and device.
Background technology
In Long Term Evolution (Long Term Evolution, LTE) communication system, for guaranteeing may to exist between enode (eNodeB) between the website of demand for interconnection, all dispose path, need to exist between the eNodeB of demand for interconnection and set up X2 interface those.
In prior art, by wireless network planning personnel and bearer network planning personnel's communication, adopt static configuration mode to carry out the foundation of X2 interface.Concrete, bearer network carries out the network planning according to the networking demand of wireless network, and X2 interface is set up existing between the eNodeB of demand for interconnection in the IP address of the X2 interface providing according to wireless network.
In technique scheme, when needs are set up X2 interface in a large number, the serious bearer network technology that relies on, cause the site apparatus of bearer network may occur that link configuration surpasses the situation of specification, layoutprocedure is complicated, and cost is high, can not guarantee economically rational capital expenditure (Capital Expenditure, CAPEX) and operation cost (Operating Expense, OPEX).
Summary of the invention
The embodiment of the present invention provide a kind of X2 interface from method for building up and device, by dynamical fashion, automatically set up X2 interface, to reduce static mode, set up complexity and the cost of X2 interface.
First aspect, the embodiment of the present invention provide a kind of X2 interface from method for building up, comprising:
The collaborative network element of wireless network sends demand for interconnection solicitation message to the collaborative network element of bearer network, described demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface, so that described bearer network collaborative network unit sets up the foundation of the required bearer path of X2 according to described indication information;
The collaborative network element of described wireless network receives the demand for interconnection response message that the collaborative network element of described bearer network sends.
In the possible implementation of the first aspect first, the collaborative network element of described wireless network also comprises before sending demand for interconnection solicitation message to the collaborative network element of bearer network:
The collaborative network element of described wireless network generates the described indication information that need to set up each enode eNodeB of X2 interface.
May implementation in conjunction with the first of first aspect, in the possible implementation of the second aspect first, the collaborative network element of described wireless network comprises before generating the indication information of described each enode eNodeB that need to set up X2 interface:
The collaborative network element of described wireless network obtains the neighborhood region correlation chart of described eNodeB;
The collaborative network element of described wireless network is inquired about the community configured information of described eNodeB, and described community configured information shows the cell conditions of the upper configuration of described eNodeB;
The collaborative network element of described wireless network generates the described indication information that need to set up each enode eNodeB of X2 interface, comprising:
Described wireless network collaborative network unit, according to described neighborhood region correlation chart and described community configured information, generates the described indication information that need to set up each enode eNodeB of X2 interface.
In conjunction with the first or the possible implementation of the second of first aspect, first aspect, in the third the possible implementation aspect first, the collaborative network element of described wireless network sends demand for interconnection solicitation message to bearer network, comprising:
Described wireless network collaborative network unit is integrated on the wireless side network element of software defined network SDN, described bearer network collaborative network unit is integrated on the network controller of described SDN, the collaborative network element of described wireless network, by the northbound interface of described network controller, sends demand for interconnection solicitation message to the collaborative network element of described bearer network; Or,
Described wireless network collaborative network unit is integrated on the wireless side network element of legacy network, described bearer network collaborative network unit is integrated on the Element management system EMS of described legacy network, the collaborative network element of described wireless network, by the northbound interface of described EMS, sends demand for interconnection solicitation message to the collaborative network element of described bearer network.
In conjunction with the first, the second or the third possible implementation of first aspect, first aspect, in the 4th kind of possible implementation aspect first, the method also comprises:
The collaborative network element of described wireless network sends X2 interface to the collaborative network element of described bearer network and deletes Indication message, so that Indication message is deleted according to described X2 interface by described bearer network collaborative network unit, X2 interface is deleted.
Second aspect, the embodiment of the present invention provide a kind of X2 interface from method for building up, comprising:
The collaborative network element of bearer network receives the demand for interconnection solicitation message that the collaborative network element of wireless network sends, and described demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface;
Described bearer network collaborative network unit, according to described indication information, sets up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface;
The collaborative network element of described bearer network sends demand for interconnection response message to described wireless network.
In the possible implementation of the first aspect second, described indication information is that described wireless network collaborative network unit generates according to neighborhood region correlation chart and community configured information;
Described bearer network collaborative network unit, according to described indication information, sets up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface, comprising:
Configuration path, according to described indication information, shines upon to obtain to setting up the eNodeB of X2 interface in described bearer network collaborative network unit;
Described bearer network collaborative network unit, according to described configuration path, sets up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface.
In the possible implementation of the second aspect second, described bearer network collaborative network unit, according to described indication information, before setting up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface, comprising:
The collaborative network element of described bearer network obtains network topological information;
Described according to described indication information, between the eNodeB that need to set up X2 interface, set up the required bearer path of X2 interface, comprising:
Described bearer network collaborative network unit, according to described indication information and described network topological information, sets up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface.
The first or the possible implementation of the second in conjunction with second aspect, second aspect, in the third possible implementation aspect second, the collaborative network element of described bearer network receives the demand for interconnection solicitation message that the collaborative network element of wireless network sends, and comprising:
Described bearer network collaborative network unit is integrated on the network controller of software defined network SDN, described wireless network collaborative network unit is integrated on the wireless side network element of described SDN, and the collaborative network element of described bearer network receives by the northbound interface of described network controller the demand for interconnection solicitation message that the collaborative network element of described wireless network sends; Or,
Described bearer network collaborative network unit is integrated on the Element management system EMS of legacy network, described wireless network collaborative network unit is integrated on the wireless side network element of described legacy network, and the collaborative network element of described bearer network receives by the northbound interface of described EMS the demand for interconnection solicitation message that the collaborative network element of described wireless network sends.
The first, the second or the third possible implementation in conjunction with second aspect, second aspect, in the 4th kind of possible implementation aspect second, the collaborative network element of described bearer network receives the X2 interface deletion Indication message that described wireless network sends;
Indication message is deleted according to described X2 interface by described bearer network collaborative network unit, and X2 interface is deleted.
The 3rd aspect, the embodiment of the present invention provides a kind of wireless network to work in coordination with network element, comprising:
Sending module, for sending demand for interconnection solicitation message to the collaborative network element of bearer network, described demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface, so that described bearer network collaborative network unit sets up the foundation of the required bearer path of X2 according to described indication information;
Receiver module, the demand for interconnection response message sending for receiving the collaborative network element of described bearer network.
In the possible implementation of the first aspect the 3rd, the collaborative network element of described wireless network also comprises:
Processing module, for generating the described indication information that need to set up each enode eNodeB of X2 interface.
The first possibility implementation in conjunction with the 3rd aspect, in the possible implementation of the second aspect the 3rd, described processing module, also for obtaining the neighborhood region correlation chart of described eNodeB, inquire about the community configured information of described eNodeB, described community configured information shows the cell conditions of the upper configuration of described eNodeB, according to described neighborhood region correlation chart and described community configured information, generates the described indication information that need to set up each enode eNodeB of X2 interface.
The first or the possible implementation of the second in conjunction with the 3rd aspect, the 3rd aspect, in the third possible implementation aspect the 3rd, described sending module is by the northbound interface of network controller, to the collaborative network element of described bearer network, send demand for interconnection solicitation message, described wireless network collaborative network unit is integrated on the wireless side network element of software defined network SDN, and described bearer network collaborative network unit is integrated on the network controller of described SDN; Or,
Described sending module is by the northbound interface of Element management system EMS, to the collaborative network element of described bearer network, send demand for interconnection solicitation message, described wireless network collaborative network unit is integrated on the wireless side network element of legacy network, and described bearer network collaborative network unit is integrated on the described EMS of described legacy network.
The first, the second or the third possible implementation in conjunction with the 3rd aspect, the 3rd aspect, in the 4th kind of possible implementation aspect the 3rd, described sending module, also for sending X2 interface to the collaborative network element of described bearer network, delete Indication message, so that Indication message is deleted according to described X2 interface by described bearer network collaborative network unit, X2 interface is deleted.
The 4th aspect, a kind of bearer network is worked in coordination with network element, comprising:
Receiver module, the demand for interconnection solicitation message sending for receiving the collaborative network element of wireless network, described demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface;
Processing module for the described indication information receiving according to described receiver module, is set up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface;
Sending module, for sending demand for interconnection response message to described wireless network.
In the possible implementation of the first aspect the 4th, described processing module, be used for according to described indication information, to setting up the eNodeB of X2 interface, shine upon to obtain configuration path, according to described configuration path, between the eNodeB that need to set up X2 interface, set up the required bearer path of X2 interface, wherein, described indication information is that described wireless network collaborative network unit generates according to neighborhood region correlation chart and community configured information.
In the possible implementation of the second aspect the 4th, described processing module, be used for obtaining network topological information, according to described indication information and described network topological information, between the eNodeB that need to set up X2 interface, set up the required bearer path of X2 interface.
The first or the possible implementation of the second in conjunction with the 4th aspect, the 4th aspect, in the third possible implementation aspect the 4th, described receiver module, specifically for the northbound interface by described network controller, receive the demand for interconnection solicitation message that the collaborative network element of described wireless network sends, described bearer network collaborative network unit is integrated on the network controller of software defined network SDN, and described wireless network collaborative network unit is integrated on the wireless side network element of described SDN; Or, northbound interface by described EMS receives the demand for interconnection solicitation message that the collaborative network element of described wireless network sends, it is upper that described bearer network collaborative network unit is integrated in the Element management system EMS of legacy network, and described wireless network collaborative network unit is integrated on the wireless side network element of described legacy network.
The first, the second or the third possible implementation in conjunction with the 4th aspect, the 4th aspect, in the 4th kind of possible implementation aspect the 4th, described receiver module, the X2 interface deletion Indication message also sending for receiving described wireless network;
Described processing module, also, for deleting Indication message according to described X2 interface, deletes X2 interface.
The X2 interface that the embodiment of the present invention provides from method for building up and device, be responsible for carrying out the collaborative network element of collaborative wireless network with bearer network and send demand for interconnection solicitation message to the collaborative network element of bearer network, inform between collaborative which eNodeB of network element of bearer network and need to set up X2 interface, make the collaborative network element of bearer network between the eNodeB that need to set up X2 interface, set up the foundation of the required bearer path of X2 interface, thereby with dynamical fashion, automatically set up X2 interface, reduced complexity and cost that static mode is set up X2 interface.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creativeness, work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart from method for building up embodiment mono-of X2 interface of the present invention;
Fig. 2 is the flow chart from method for building up embodiment bis-of X2 interface of the present invention;
Fig. 3 is that the present invention realizes X2 interface from the logic diagram of setting up in SDN network;
Fig. 4 is that the present invention realizes X2 interface from the logic diagram of setting up in legacy network;
Fig. 5 is the structural representation of the collaborative network element embodiment mono-of wireless network of the present invention;
Fig. 6 is the structural representation of the collaborative network element embodiment bis-of wireless network of the present invention;
Fig. 7 is the structural representation of the collaborative network element embodiment mono-of bearer network of the present invention;
Fig. 8 is the structural representation of the collaborative network element embodiment tri-of wireless network of the present invention;
Fig. 9 is the structural representation of the collaborative network element embodiment bis-of bearer network of the present invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the flow chart from method for building up embodiment mono-of X2 interface of the present invention, and the executive agent of the present embodiment is the collaborative network element of the wireless network in wireless network, is applicable to automatically set up by dynamical fashion the scene of X2 interface.Concrete, the present embodiment comprises the steps:
101, the collaborative network element of wireless network sends demand for interconnection solicitation message to the collaborative network element of bearer network, demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface, so that bearer network collaborative network unit sets up the foundation of the required bearer path of X2 interface according to indication information.
In general, the wireless access side of cordless communication network and core net part can be referred to as wireless network, and public data network or internet (Internet) part is referred to as bearer network.In the present embodiment, wireless network side has the collaborative network element of wireless network, to be responsible for the entity collaborative with bearer network, it is newly-increased network element in network, also can integratedly be arranged in wireless network on existing network element, for example, can be arranged on eNodeB, mobile management entity (Mobile Managenment Entity, MME), gateway (Service Gateway, SGW) etc.Bearer network side has the collaborative network element of bearer network, to be responsible for the entity collaborative with wireless network, it is newly-increased network element in network, also can integratedly be arranged in bearer network on existing network element, for example, can be arranged on the network controller of software defined network, on the Element management system (Element Management System, EMS) of legacy network.
In this step, the collaborative network element of wireless network sends the demand for interconnection solicitation message of carrying each eNodeB indication information that need to set up X2 interface to the collaborative network element of bearer network, inform between collaborative which eNodeB of network element of bearer network and need to configure X2 interface, make bearer network collaborative network unit according to indication information, between the eNodeB that need to set up X2 interface, set up the foundation of the required bearer path of X2 interface.Establish after bearer path, mean the successful foundation of X2 interface.
102, the collaborative network element of wireless network receives the demand for interconnection response message that the collaborative network element of bearer network sends.
If bearer network collaborative network unit successfully sets up and need to configure after the required bearer path of X2 interface according to indication information, to the collaborative network element of wireless network, send the demand for interconnection response message that indication X2 interface is successfully set up, accordingly, the collaborative network element of wireless network receives this message; Otherwise, if bearer network collaborative network unit according to indication information, fails to set up, need to configure the required bearer path of X2 interface, to the collaborative network element of wireless network send indication X2 interface set up failed demand for interconnection should message, accordingly, the collaborative network element of wireless network receives this message.
The X2 interface that the embodiment of the present invention provides is from method for building up, be responsible for carrying out the collaborative network element of collaborative wireless network with bearer network and send demand for interconnection solicitation message to the collaborative network element of bearer network, inform between collaborative which eNodeB of network element of bearer network and need to set up X2 interface, make the collaborative network element of bearer network between the eNodeB that need to set up X2 interface, set up the foundation of the required bearer path of X2 interface, thereby with dynamical fashion, automatically set up X2 interface, reduced complexity and cost that static mode is set up X2 interface.
Further, in above-described embodiment one, the collaborative network element of wireless network need to first generate each eNodeB indication information that need to set up X2 interface before sending demand for interconnection solicitation message to the collaborative network element of bearer network.
Concrete, the collaborative network element of wireless network obtains the neighborhood region correlation chart of eNodeB, and the community configured information ，Gai district configuration information of inquiry eNodeB shows the cell conditions of the upper configuration of eNodeB.According to this difference information, generation need to be set up the indication information of each eNodeB of X2 interface.
Further, in above-described embodiment one, wireless network collaborative network unit is integrated on the wireless side network element of software defined network, bearer network collaborative network unit is integrated on the network controller of software defined network, the collaborative network element of wireless network, by the northbound interface of network controller, sends demand for interconnection solicitation message to the collaborative network element of bearer network; Or, wireless network collaborative network unit is integrated on the wireless side network element of legacy network, bearer network collaborative network unit is integrated on the Element management system EMS of legacy network, and the collaborative network element of wireless network, by the northbound interface of EMS, sends demand for interconnection solicitation message to the collaborative network element of bearer network.
Fig. 2 is the flow chart from method for building up embodiment bis-of X2 interface of the present invention, and the executive agent of the present embodiment is the collaborative network element of the bearer network in bearer network, is applicable to automatically set up by dynamical fashion the scene of X2 interface.Concrete, the present embodiment comprises the steps:
201, the collaborative network element of bearer network receives the demand for interconnection solicitation message that the collaborative network element of wireless network sends, and demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface.
In the present embodiment, the associated description of working in coordination with network element about wireless network, bearer network, the collaborative network element of bearer network, wireless network refers to 101 in Fig. 1 embodiment mono-, repeats no more herein.In this step, the collaborative network element of bearer network receives the demand for interconnection solicitation message of carrying each eNodeB indication information that need to set up X2 interface that the collaborative network element of wireless network sends.
202, bearer network collaborative network unit, according to indication information, sets up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface.
After receiving demand for interconnection solicitation message, the indication information carrying according to this interconnected solicitation message, the foundation of setting up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface.Establish after bearer path, mean the successful foundation of X2 interface.
203, collaborative network element sends demand for interconnection response message to wireless network.
If bearer network collaborative network unit successfully sets up and need to configure after the required bearer path of X2 interface according to indication information, to the collaborative network element of wireless network, send the demand for interconnection response message that indication X2 interface is successfully set up; Otherwise, if according to indication information, failing to set up, bearer network collaborative network unit need to configure the required bearer path of X2 interface, to the collaborative network element transmission of wireless network indication X2 interface, setting up failed demand for interconnection should message.
The X2 interface that the embodiment of the present invention provides is from method for building up, load and wireless network carry out the collaborative network element of collaborative bearer network after receiving the collaborative network element transmission of wireless network demand for interconnection solicitation message, be informed in and between which eNodeB, need to set up X2 interface, and the foundation of setting up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface, thereby with dynamical fashion, automatically set up X2 interface, reduced complexity and cost that static mode is set up X2 interface.
Further, in above-described embodiment two, indication information is that wireless network collaborative network unit generates according to neighborhood region correlation chart and community configured information, bearer network collaborative network unit is according to this indication information, to setting up the eNodeB of X2 interface, shine upon to obtain configuration path, and according to configuration path, between the eNodeB that need to set up X2 interface, set up the required bearer path of X2 interface.
Further, in above-described embodiment two, bearer network collaborative network unit, according to indication information, before setting up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface, need to obtain the network topological information of wireless network.Then, according to indication information and network topological information, between the eNodeB that need to set up X2 interface, set up the required bearer path of X2 interface.
Further, in above-described embodiment two, bearer network collaborative network unit is integrated on the network controller of software defined network, wireless network collaborative network unit is integrated on the wireless side network element of software defined network, and the collaborative network element of bearer network receives by the northbound interface of network controller the demand for interconnection solicitation message that the collaborative network element of wireless network sends; Or, bearer network collaborative network unit is integrated on the Element management system EMS of legacy network, wireless network collaborative network unit is integrated on the wireless side network element of legacy network, and the collaborative network element of bearer network receives by the northbound interface of EMS the demand for interconnection solicitation message that the collaborative network element of wireless network sends.
In recent years, proposed the concept of software defined network (Software Defined Network, SDN), wherein, it is separated that OpenFlow technology has realized the forwarding of the control strategy in IP network and data policy.Therefore, based on OpenFlow technology, the embodiment of the present invention is divided into two large classes by current cordless communication network, and a kind of is the SDN network that has adopted OpenFlow technology, and in this network, the forwarding of control strategy and data policy is separated from each other; It is another kind of that in order not adopt the legacy network of OpenFlow technology, in this network, chain of command and data surface mix, unrealized separation physically, i.e. and the forwarding of control strategy and data policy is controlled by Element management system EMS etc.Below, by describing technical solution of the present invention in detail, how in above-mentioned two kinds of networks, to realize the foundation certainly of X2 interface.
Fig. 3 is that the present invention realizes X2 interface from the logic diagram of setting up in SDN network.As shown in Figure 3, dotted line right side is bearer network, it comprises SDN network of network controller and OpenFlow switch, and OpenFlow switch can be connected with network controller through an escape way by OpenFlow agreement, and bearer network contract network can integratedly be arranged on network controller; Dotted line left side is wireless network, it comprises self-organizing neuroid (Self-Organization Network, SON) network element, operation support subsystem (Operation Support Subsystem, OSS), eNodeB, MME, SGW etc., and enable (Enabler) network element, wherein, Enabler is a network element that wireless network ability is opened to the outside world, and its deploy has wireless network collaborative network unit.
Concrete, operation principle is as follows: first, Enabler network element obtains and faces cell relation table, and inquires about the community configured information of each eNodeB.Facing cell relation table can be by terminal automatic acquisition, directly report Enabler network element, or pass through other reported by network elements to Enabler, and on eNodeB, configured which community, in OSS system or on other network elements, can check in, according to facing cell relation table and community configured information, Enabler determines needs to configure X2 interface between which eNodeB.For example, if after inquiry OSS system, find certain three eNodeB, be assumed to be an eNodeB, the 2nd eNodeB and the 3rd eNodeB, wherein on an eNodeB, dispose community A, community B, on the 2nd eNodeB, dispose community C, community D, on the 3rd eNodeB, dispose community E, community F, if facing cell relation table shows: community A and community C are adjacent cell, community D and community E are adjacent cell, illustrate between an eNodeB and the 2nd eNodeB and need to configure X2 interface, between the 2nd eNodeB and the 3rd eNodeB, need to configure X2 interface, and between an eNodeB and the 3rd eNodeB without configuration X2 interface.Enabler network element is according to facing the indication information that the generations such as cell relation table, community configured information need to be set up each eNodeB of X2 interface.In addition, if Enabler network element is not preserved the relevant informations such as IP of the X2 interface of relevant eNodeB, also need to obtain the relevant informations such as IP of X2 interface.
Secondly, after getting above-mentioned various information, Enabler is by the northbound interface of network controller, REST interface for example, to network controller, send the demand for interconnection solicitation message of carrying indication information, between informing network controller any two eNodeB, be specially between any two IP addresses and need to configure bearing link to set up X2 interface.Concrete, the sample of this demand for interconnection solicitation message is as follows:
POST http://www.sdncontroller.org/order<resource-order> <item>...HTTP/1.1
Wherein key item (ITEM) is as follows:
<LTE>
<X2_LINK>
<src_ip>10.70.16.89</src_ip>
<dst_ip>10.70.16.86</dst_ip>
<src_ip>10.70.17.89</src_ip>
<dst_ip>10.70.17.86</dst_ip>
<src_ip>10.70.16.89</src_ip>
<dst_ip>10.70.17.86</dst_ip>
…
</X2_LINK>
</LTE>
When needs are deleted X2 interface, Enabler network element sends X2 interface and deletes Indication message to network controller, so that Enabler network element is deleted Indication message according to this X2 interface, X2 interface is deleted.Concrete, the sample of this X2 interface deletion Indication message is as follows:
DELETE http://www.sdncontroller.org/delete<resource-order> <item>...HTTP/1.1。
Again, network controller is after getting the information of Enabler transmission, according to the whole network of network topology information getting, for example adopt Link Layer Discovery Protocol (Link Layer Discovery Protocol, LLDP), Intermediate System-to-Intermediate System (Intermediate system to intermediate system, ISIS) agreement or other Topology Discovery Protocols etc. obtain network topological information, generate stream table information and are handed down to corresponding OpenFlow switch.Wherein, stream table information is exactly one and forwards rule, and showing needs to carry out the forwarding of control strategy and data policy between which eNodeB.
Finally, OpenFlow switch, according to stream table Information generation stream table, is set up forward-path, thereby is reached the object of automatically setting up X2 interface according to demand.After the foundation certainly of carrying out X2 interface, network controller is responded demand for interconnection response message to Enabler network element.
In above-described embodiment, eNodeB is linked into after bearer network, Enabler network element is by address resolution protocol (the Address Resolution Protocol of eNodeB, ARP) learn and get the IP address of eNodeB, certainly, also can monitor by DHCP (Dynamic Host Configuration Protocol snooping, DHCP snooping) learns and the IP address that gets eNodeB.Therefore, Enabler network element sends behind the IP address of eNodeB to network controller, network controller can be known the OpenFlow switch that eNodeB connects, thereby in bearer network, automatically sets up the forward-path between network controller and OpenFlow switch.
It should be noted that, be all to take wireless network to be elaborated as IP-based network as example in above-described embodiment, the IP address that the collaborative network element of wireless network need to obtain the X2 interface of eNodeB.Yet the present invention is not as restriction, in other possible execution modes, wireless network also can the IP-based network of right and wrong.
In addition, also it should be noted that, above-mentioned Fig. 3 is only a logic diagram, and the connecting line in figure only represents the relation on each cellular logic, does not refer to concrete connected mode.
Fig. 4 is that the present invention realizes X2 interface from the logic diagram of setting up in legacy network.As shown in Figure 4, dotted line right side is bearer network, it comprises Element management system (Element Management System, EMS) and the load bearing equipment (Bearer Equipment) of legacy network, and the collaborative network element of bearer network can integratedly be arranged on Element management system; Dotted line side is wireless network, it comprises self-organizing neuroid (Self-Organization Network, SON) network element, eNodeB, MME, SGW etc., and wireless operation support system (Wireless OSS), wherein, Wireless OSS network element deploy has wireless network collaborative network unit.
Concrete, operation principle is as follows: first, Wireless OSS obtains and faces cell relation table, and inquires about the community configured information of each eNodeB.Concrete, can, referring to the implementation of above-mentioned Fig. 3 embodiment E nabler network element, repeat no more herein.
Secondly, face cell relation table, community configured information and relative address information as IP etc. getting, and be converted into after indication information, Wireless OSS is by the northbound interface of Element management system, to Element management system, send the demand for interconnection solicitation message of carrying indication information, between informing network controller any two eNodeB, be specially between any two IP addresses and need to configure bearing link to set up X2 interface.
Finally, Element management system is after getting the information of Wireless OSS transmission, obtain network topology information, and topology information and demand for interconnection solicitation message etc. is sent to load bearing equipment, by load bearing equipment, set up the foundation of the required bearing link of X2 interface, thus realize X2 interface from process of establishing.
In above-described embodiment, because the northbound interface of the Element management system of bearer network is the northbound interface of atomic level operation, therefore, wireless network need to be criticized and run the automatic foundation that script is realized X2 interface.
It should be noted that, above-mentioned Fig. 4 is only a logic diagram, and the connecting line in figure only represents the relation on each cellular logic, does not refer to concrete connected mode.
Fig. 5 is the structural representation of the collaborative network element embodiment mono-of wireless network of the present invention, and the collaborative network element of wireless network that the present embodiment provides is the device embodiment corresponding with Fig. 1 embodiment of the present invention, and specific implementation process does not repeat them here.Concrete, the collaborative network element 100 of wireless network that the present embodiment provides specifically comprises:
Sending module 11, for sending demand for interconnection solicitation message to the collaborative network element of bearer network, demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface, so that bearer network collaborative network unit sets up the foundation of the required bearer path of X2 according to indication information;
The collaborative network element of wireless network that the embodiment of the present invention provides, be responsible for carrying out the collaborative network element of collaborative wireless network with bearer network and send demand for interconnection solicitation message to the collaborative network element of bearer network, inform between collaborative which eNodeB of network element of bearer network and need to set up X2 interface, make the collaborative network element of bearer network between the eNodeB that need to set up X2 interface, set up the foundation of the required bearer path of X2 interface, thereby with dynamical fashion, automatically set up X2 interface, reduced complexity and cost that static mode is set up X2 interface.
Fig. 6 is the structural representation of the collaborative network element embodiment bis-of wireless network of the present invention.As shown in Figure 6, the collaborative network element of wireless network that the present embodiment provides, on the collaborative network element of wireless network shown in above-mentioned Fig. 5 basis, further, also comprises:
Further, processing module 13, also for obtaining the neighborhood region correlation chart of eNodeB, the community configured information of inquiry eNodeB, community configured information shows the cell conditions of the upper configuration of eNodeB, according to neighborhood region correlation chart and community configured information, generation need to be set up the indication information of each enode eNodeB of X2 interface.
Further, sending module 11 is by the northbound interface of network controller, to the collaborative network element of bearer network, send demand for interconnection solicitation message, wireless network collaborative network unit is integrated on the wireless side network element of software defined network SDN, and bearer network collaborative network unit is integrated on the network controller of SDN; Or,
Sending module 11 is by the northbound interface of Element management system EMS, to the collaborative network element of bearer network, send demand for interconnection solicitation message, wireless network collaborative network unit is integrated on the wireless side network element of legacy network, and bearer network collaborative network unit is integrated on the EMS of legacy network
Further, sending module 11, also deletes Indication message for sending X2 interface to the collaborative network element of bearer network, so that Indication message is deleted according to X2 interface by bearer network collaborative network unit, X2 interface is deleted.
Fig. 7 is the structural representation of the collaborative network element embodiment mono-of bearer network of the present invention, and the collaborative network element of wireless network that the present embodiment provides is the device embodiment corresponding with Fig. 2 embodiment of the present invention, and specific implementation process does not repeat them here.Concrete, the collaborative network element 200 of bearer network that the present embodiment provides specifically comprises:
Sending module 23, for sending demand for interconnection response message to wireless network.
The collaborative network element of bearer network that the embodiment of the present invention provides, load and wireless network carry out the collaborative network element of collaborative bearer network after receiving the collaborative network element transmission of wireless network demand for interconnection solicitation message, be informed in and between which eNodeB, need to set up X2 interface, and the foundation of setting up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface, thereby with dynamical fashion, automatically set up X2 interface, reduced complexity and cost that static mode is set up X2 interface.
Further, processing module 22, be used for according to indication information, to setting up the eNodeB of X2 interface, shine upon to obtain configuration path, according to configuration path, between the eNodeB that need to set up X2 interface, set up the required bearer path of X2 interface, wherein, indication information is that wireless network collaborative network unit generates according to neighborhood region correlation chart and community configured information.
Further, processing module 22 for obtaining network topological information, according to indication information and network topological information, is set up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface.
Further, receiver module 21, specifically for the northbound interface by network controller, receive the demand for interconnection solicitation message that the collaborative network element of wireless network sends, bearer network collaborative network unit is integrated on the network controller of software defined network SDN, and wireless network collaborative network unit is integrated on the wireless side network element of SDN; Or, northbound interface by EMS receives the demand for interconnection solicitation message that the collaborative network element of wireless network sends, bearer network collaborative network unit is integrated on the Element management system EMS of legacy network, and wireless network collaborative network unit is integrated on the wireless side network element of legacy network.
Further, receiver module 21, the X2 interface deletion Indication message also sending for receiving wireless network, processing module 22, also, for deleting Indication message according to X2 interface, deletes X2 interface.
Fig. 8 is the structural representation of the collaborative network element embodiment tri-of wireless network of the present invention.As shown in Figure 8, the collaborative network element 300 of wireless network that the present embodiment provides comprises: processor 31, memory 32, reflector 33, receiver 34.Memory 32, reflector 33 and receiver 34 are connected with processor 31 by bus.Wherein, instruction is carried out in memory 32 storages, when collaborative network element 300 operation of wireless network, between processor 31 and memory 32, communicate by letter, processor 31 carry out instructions make wireless network work in coordination with network element 300 execution X2 interface provided by the invention from method for building up.
Wherein, reflector 33, for sending demand for interconnection solicitation message to the collaborative network element of bearer network, demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface, so that bearer network collaborative network unit sets up the foundation of the required bearer path of X2 according to indication information;
Receiver 34, the demand for interconnection response message sending for receiving the collaborative network element of bearer network.
Further, processor 31, for generating the indication information of each enode eNodeB that need to set up X2 interface.
Further, processor 31, for obtaining the neighborhood region correlation chart of eNodeB, according to neighborhood region correlation chart and community configured information, generation need to be set up the indication information of each enode eNodeB of X2 interface.
Further, reflector 33, for by the northbound interface of network controller, sends demand for interconnection solicitation message to the collaborative network element of bearer network, wireless network collaborative network unit is integrated on the wireless side network element of software defined network SDN, and bearer network collaborative network unit is integrated on the network controller of SDN; Or, reflector 33, for by the northbound interface of EMS, sends demand for interconnection solicitation message to the collaborative network element of bearer network, wireless network collaborative network unit is integrated on the wireless side network element of legacy network, and bearer network collaborative network unit is integrated on the Element management system EMS of legacy network.
Further, reflector 33, deletes Indication message for sending X2 interface to the collaborative network element of bearer network, so that Indication message is deleted according to X2 interface by bearer network collaborative network unit, X2 interface is deleted.
Fig. 9 is the structural representation of the collaborative network element embodiment bis-of bearer network of the present invention.As shown in Figure 9, the collaborative network element 400 of bearer network that the present embodiment provides comprises: processor 41, memory 42, reflector 43, receiver 44.Memory 42, reflector 43 and receiver 44 are connected with processor 41 by bus.Wherein, instruction is carried out in memory 42 storages, when collaborative network element 400 operation of bearer network, between processor 41 and memory 42, communicate by letter, processor 41 carry out instructions make bearer network work in coordination with network element 400 execution X2 interface provided by the invention from method for building up.
Wherein, receiver 44, the demand for interconnection solicitation message sending for receiving the collaborative network element of wireless network, demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface;
Further, processor 41, be used for according to indication information, to setting up the eNodeB of X2 interface, shine upon to obtain configuration path, according to configuration path, between the eNodeB that need to set up X2 interface, set up the required bearer path of X2 interface, wherein, indication information is that wireless network collaborative network unit generates according to neighborhood region correlation chart and community configured information.
Further, processor 41 for obtaining network topological information, according to indication information and network topological information, is set up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface.
Further, receiver 44, for the northbound interface by network controller, receive the demand for interconnection solicitation message that the collaborative network element of wireless network sends, bearer network collaborative network unit is integrated on the network controller of software defined network SDN, and wireless network collaborative network unit is integrated on the wireless side network element of SDN; Or, receiver 44, for the northbound interface by EMS, receive the demand for interconnection solicitation message that the collaborative network element of wireless network sends, it is upper that bearer network collaborative network unit is integrated in the Element management system EMS of legacy network, and wireless network collaborative network unit is integrated on the wireless side network element of legacy network.
Further, receiver 44, deletes Indication message for receiving the X2 interface that wireless network sends, and correspondingly thinks that processor 41, for deleting Indication message according to X2 interface, is deleted X2 interface.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of program command.Aforesaid program can be stored in a computer read/write memory medium.This program, when carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (20)
- X2 interface from a method for building up, it is characterized in that, comprising:The collaborative network element of wireless network sends demand for interconnection solicitation message to the collaborative network element of bearer network, described demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface, so that described bearer network collaborative network unit sets up the foundation of the required bearer path of X2 according to described indication information;The collaborative network element of described wireless network receives the demand for interconnection response message that the collaborative network element of described bearer network sends.
- 2. method according to claim 1, is characterized in that, the collaborative network element of described wireless network also comprises before sending demand for interconnection solicitation message to the collaborative network element of bearer network:The collaborative network element of described wireless network generates the described indication information that need to set up each enode eNodeB of X2 interface.
- 3. method according to claim 2, is characterized in that, the collaborative network element of described wireless network comprises before generating the indication information of described each enode eNodeB that need to set up X2 interface:The collaborative network element of described wireless network obtains the neighborhood region correlation chart of described eNodeB;The collaborative network element of described wireless network is inquired about the community configured information of described eNodeB, and described community configured information shows the cell conditions of the upper configuration of described eNodeB;The collaborative network element of described wireless network generates the described indication information that need to set up each enode eNodeB of X2 interface, comprising:Described wireless network collaborative network unit, according to described neighborhood region correlation chart and described community configured information, generates the described indication information that need to set up each enode eNodeB of X2 interface.
- 4. according to the method described in claim 1～3 any one, it is characterized in that, the collaborative network element of described wireless network sends demand for interconnection solicitation message to bearer network, comprising:Described wireless network collaborative network unit is integrated on the wireless side network element of software defined network SDN, described bearer network collaborative network unit is integrated on the network controller of described SDN, the collaborative network element of described wireless network, by the northbound interface of described network controller, sends demand for interconnection solicitation message to the collaborative network element of described bearer network; Or,Described wireless network collaborative network unit is integrated on the wireless side network element of legacy network, described bearer network collaborative network unit is integrated on the Element management system EMS of described legacy network, the collaborative network element of described wireless network, by the northbound interface of described EMS, sends demand for interconnection solicitation message to the collaborative network element of described bearer network.
- 5. according to the method described in claim 1～4 any one, it is characterized in that, also comprise:The collaborative network element of described wireless network sends X2 interface to the collaborative network element of described bearer network and deletes Indication message, so that Indication message is deleted according to described X2 interface by described bearer network collaborative network unit, X2 interface is deleted.
- X2 interface from a method for building up, it is characterized in that, comprising:The collaborative network element of bearer network receives the demand for interconnection solicitation message that the collaborative network element of wireless network sends, and described demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface;Described bearer network collaborative network unit, according to described indication information, sets up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface;The collaborative network element of described bearer network sends demand for interconnection response message to described wireless network.
- 7. method according to claim 6, is characterized in that, described indication information is that described wireless network collaborative network unit generates according to neighborhood region correlation chart and community configured information;Described bearer network collaborative network unit, according to described indication information, sets up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface, comprising:Configuration path, according to described indication information, shines upon to obtain to setting up the eNodeB of X2 interface in described bearer network collaborative network unit;Described bearer network collaborative network unit, according to described configuration path, sets up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface.
- 8. method according to claim 6, is characterized in that, described bearer network collaborative network unit, according to described indication information, before setting up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface, comprising:The collaborative network element of described bearer network obtains network topological information;Described according to described indication information, between the eNodeB that need to set up X2 interface, set up the required bearer path of X2 interface, comprising:Described bearer network collaborative network unit, according to described indication information and described network topological information, sets up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface.
- 9. according to the method described in claim 6～8 any one, it is characterized in that, the collaborative network element of described bearer network receives the demand for interconnection solicitation message that the collaborative network element of wireless network sends, and comprising:Described bearer network collaborative network unit is integrated on the network controller of software defined network SDN, described wireless network collaborative network unit is integrated on the wireless side network element of described SDN, and the collaborative network element of described bearer network receives by the northbound interface of described network controller the demand for interconnection solicitation message that the collaborative network element of described wireless network sends; Or,Described bearer network collaborative network unit is integrated on the Element management system EMS of legacy network, described wireless network collaborative network unit is integrated on the wireless side network element of described legacy network, and the collaborative network element of described bearer network receives by the northbound interface of described EMS the demand for interconnection solicitation message that the collaborative network element of described wireless network sends.
- 10. according to the method described in claim 6～9 any one, it is characterized in that, also comprise:The collaborative network element of described bearer network receives the X2 interface deletion Indication message that described wireless network sends;Indication message is deleted according to described X2 interface by described bearer network collaborative network unit, and X2 interface is deleted.
- 11. 1 kinds of collaborative network elements of wireless network, is characterized in that, comprising:Sending module, for sending demand for interconnection solicitation message to the collaborative network element of bearer network, described demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface, so that described bearer network collaborative network unit sets up the foundation of the required bearer path of X2 according to described indication information;Receiver module, the demand for interconnection response message sending for receiving the collaborative network element of described bearer network.
- 12. wireless networks according to claim 11 are worked in coordination with network element, it is characterized in that, also comprise:Processing module, for generating the described indication information that need to set up each enode eNodeB of X2 interface.
- 13. wireless networks according to claim 12 are worked in coordination with network element, it is characterized in that,Described processing module, also for obtaining the neighborhood region correlation chart of described eNodeB, inquire about the community configured information of described eNodeB, described community configured information shows the cell conditions of the upper configuration of described eNodeB, according to described neighborhood region correlation chart and described community configured information, generate the described indication information that need to set up each enode eNodeB of X2 interface.
- 14. according to the collaborative network element of the wireless network described in claim 11～13 any one, it is characterized in that,Described sending module is by the northbound interface of network controller, to the collaborative network element of described bearer network, send demand for interconnection solicitation message, described wireless network collaborative network unit is integrated on the wireless side network element of software defined network SDN, and described bearer network collaborative network unit is integrated on the network controller of described SDN; Or,Described sending module is by the northbound interface of Element management system EMS, to the collaborative network element of described bearer network, send demand for interconnection solicitation message, described wireless network collaborative network unit is integrated on the wireless side network element of legacy network, and described bearer network collaborative network unit is integrated on the described EMS of described legacy network.
- 15. according to the collaborative network element of the wireless network described in claim 11～14 any one, it is characterized in that,Described sending module, also deletes Indication message for sending X2 interface to the collaborative network element of described bearer network, so that Indication message is deleted according to described X2 interface by described bearer network collaborative network unit, X2 interface is deleted.
- 16. 1 kinds of collaborative network elements of bearer network, is characterized in that, comprising:Receiver module, the demand for interconnection solicitation message sending for receiving the collaborative network element of wireless network, described demand for interconnection solicitation message is carried the indication information of each enode eNodeB that need to set up X2 interface;Processing module for the described indication information receiving according to described receiver module, is set up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface;Sending module, for sending demand for interconnection response message to described wireless network.
- 17. bearer networks according to claim 16 are worked in coordination with network element, it is characterized in that,Described processing module, be used for according to described indication information, to setting up the eNodeB of X2 interface, shine upon to obtain configuration path, according to described configuration path, between the eNodeB that need to set up X2 interface, set up the required bearer path of X2 interface, wherein, described indication information is that described wireless network collaborative network unit generates according to neighborhood region correlation chart and community configured information.
- 18. bearer networks according to claim 16 are worked in coordination with network element, it is characterized in that,Described processing module for obtaining network topological information, according to described indication information and described network topological information, is set up the required bearer path of X2 interface between the eNodeB that need to set up X2 interface.
- 19. according to the collaborative network element of the bearer network described in claim 16～18 any one, it is characterized in that,Described receiver module, specifically for the northbound interface by described network controller, receive the demand for interconnection solicitation message that the collaborative network element of described wireless network sends, described bearer network collaborative network unit is integrated on the network controller of software defined network SDN, and described wireless network collaborative network unit is integrated on the wireless side network element of described SDN; Or, northbound interface by described EMS receives the demand for interconnection solicitation message that the collaborative network element of described wireless network sends, it is upper that described bearer network collaborative network unit is integrated in the Element management system EMS of legacy network, and described wireless network collaborative network unit is integrated on the wireless side network element of described legacy network.
- 20. according to the collaborative network element of the bearer network described in claim 16～19 any one, it is characterized in that,Described receiver module, the X2 interface deletion Indication message also sending for receiving described wireless network;Described processing module, also, for deleting Indication message according to described X2 interface, deletes X2 interface.
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