WO2015070763A1

WO2015070763A1 - Self-establishing method and apparatus for x2 interface

Info

Publication number: WO2015070763A1
Application number: PCT/CN2014/090925
Authority: WO
Inventors: 尹树成; 孔涛; 刘维华; 杜伟; 胡杰辉
Original assignee: 华为技术有限公司
Priority date: 2013-11-14
Filing date: 2014-11-12
Publication date: 2015-05-21
Also published as: CN103561481A

Abstract

A self-establishing method and apparatus for an X2 interface are provided in embodiments of the present invention. The method comprises: a wireless network cooperative element with responsibility for cooperating with a bearing network transmits a request message of interconnection requirement to the bearing network cooperative element, and informs the bearing network cooperative element that among which eNodeBs the X2 interface is required to be established so that the bearing network cooperative element can establish bearing paths needed by the X2 interface establishment among the eNodeBs requiring for establishing the X2 interface. Therefore, the X2 interface is automatically established in dynamic mode, while the complexity and costs for establishing the X2 interface in static mode are reduced.

Description

Self-establishment method and device for X2 interface

Technical field

The present invention relates to the field of communications technologies, and in particular, to a self-establishing method and apparatus for an X2 interface.

Background technique

In a Long Term Evolution (LTE) communication system, an X2 interface needs to be established between eNodeBs that have interconnection requirements to ensure that there are paths between the eNodeBs.

In the prior art, the communication between the wireless network planner and the bearer network planner is performed, and the static configuration mode is used to establish the X2 interface. Specifically, the bearer network performs network planning according to the networking requirements of the wireless network, and establishes an X2 interface between the eNodeBs with interconnection requirements according to the IP address of the X2 interface provided by the wireless network.

In the above technical solution, when a large number of X2 interfaces need to be established, the bearer network technology is heavily relied on, and the site equipment carrying the network may have a link configuration exceeding the specification. The configuration process is complicated, the cost is high, and the economic capital cannot be guaranteed. Capital Expenditure (CAPEX) and Operating Expense (OPEX).

Summary of the invention

The embodiment of the invention provides a self-establishing method and device for the X2 interface, and automatically establishes an X2 interface in a dynamic manner to reduce the complexity and cost of establishing the X2 interface in a static manner.

In a first aspect, an embodiment of the present invention provides a self-establishing method for an X2 interface, including:

The wireless network cooperative network element sends an interconnection requirement request message to the bearer network cooperative network element, where the interconnection requirement application message carries indication information of each evolved node eNodeB that needs to establish an X2 interface, so that the bearer network cooperative network element according to the indication Information is established to establish a bearer path required to establish X2;

The wireless network cooperative network element receives the interconnection requirement response message sent by the bearer network cooperative network element.

In a first possible implementation manner of the first aspect, before the sending, by the wireless network, the network element, the

The wireless network cooperative network element generates indication information of each evolved node eNodeB that needs to establish an X2 interface.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the radio network cooperative network element generates the indication information of each eNodeB that needs to establish an X2 interface Previously, including:

The wireless network cooperative network element acquires a neighbor relationship table of the eNodeB;

The wireless network cooperative network element queries the cell configuration information of the eNodeB, where the cell configuration information indicates a cell condition configured on the eNodeB;

The wireless network cooperative network element generates the indication information of each eNodeB that needs to establish an X2 interface, including:

The wireless network cooperative network element generates, according to the neighbor relationship table and the cell configuration information, indication information of each evolved node eNodeB that needs to establish an X2 interface.

In conjunction with the first aspect, the first or the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the wireless network cooperative network element sends the interconnection to the bearer network Demand application message, including:

The wireless network cooperative network element is integrated on the wireless side network element of the software defined network SDN, and the bearer network cooperative network element is integrated on the network controller of the SDN, and the wireless network cooperative network element is controlled by the network. The northbound interface of the device sends an interconnection requirement application message to the bearer network cooperative network element; or

The wireless network cooperative network element is integrated on the wireless side network element of the traditional network, and the bearer network cooperative network element is integrated on the network element management system EMS of the traditional network, and the wireless network cooperative network element passes the EMS. The northbound interface sends an interconnection requirement application message to the bearer network cooperative network element.

In conjunction with the first aspect, the first, the second, or the third possible implementation of the first aspect, in a fourth possible implementation of the first aspect, the method further includes:

The wireless network cooperative network element sends an X2 interface deletion indication message to the bearer network cooperative network element, so that the bearer network cooperative network element deletes the X2 interface according to the X2 interface deletion indication message.

In a second aspect, an embodiment of the present invention provides a self-establishing method for an X2 interface, including:

The bearer network cooperative network element receives the interconnection requirement request message sent by the wireless network cooperative network element, where the interconnection requirement application message carries the indication information of each evolved node eNodeB that needs to establish an X2 interface;

According to the indication information, the bearer network cooperative network element establishes a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface;

The bearer network cooperative network element sends an interconnect requirement response message to the wireless network.

In a first possible implementation manner of the second aspect, the indication information is generated by the wireless network cooperative network element according to the neighbor relationship table and the cell configuration information;

According to the indication information, the bearer network cooperative network element needs to establish a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface, including:

The bearer network cooperative network element performs mapping on the eNodeB that needs to establish an X2 interface according to the indication information to obtain a configuration path.

The bearer network cooperative network element establishes a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface according to the configuration path.

In a second possible implementation manner of the second aspect, the bearer network cooperative network element, according to the indication information, before the bearer path required for establishing the X2 interface between the eNodeBs that need to establish the X2 interface, includes:

The bearer network cooperative network element acquires network topology information;

The bearer path required to establish an X2 interface between the eNodeBs that need to establish an X2 interface according to the indication information, including:

The bearer network cooperative network element establishes a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface according to the indication information and the network topology information.

With reference to the second aspect, the first or the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the bearer network cooperative network element receives the wireless network collaborative network The interconnection demand application message sent by the meta, including:

The bearer network cooperative network element is integrated on the network controller of the software-defined network SDN, and the wireless network cooperative network element is integrated on the wireless side network element of the SDN, and the bearer network cooperative network element is controlled by the network. The northbound interface of the device receives the interconnection requirement application message sent by the wireless network collaborative network element; or

The bearer network cooperative network element is integrated on the network element management system EMS of the traditional network, and the wireless network cooperative network element is integrated on the wireless side network element of the traditional network, and the bearer network cooperative network element passes the EMS. The northbound interface receives the interconnection requirement application message sent by the wireless network collaborative network element.

With reference to the second aspect, the first, the second, or the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the bearer network cooperative network element receives The X2 interface sent by the wireless network deletes the indication message;

The bearer network cooperative network element deletes the X2 interface according to the X2 interface deletion indication message.

In a third aspect, an embodiment of the present invention provides a wireless network cooperative network element, including:

a sending module, configured to send an interconnection requirement request message to the bearer network cooperative network element, where the interconnection requirement application message carries indication information of each eNodeB that needs to establish an X2 interface, so that the bearer network cooperative network element according to the indication Information is established to establish a bearer path required to establish X2;

The receiving module is configured to receive an interconnection requirement response message sent by the bearer network cooperative network element.

In a first possible implementation manner of the third aspect, the wireless network cooperative network element further includes:

And a processing module, configured to generate indication information of each evolved node eNodeB that needs to establish an X2 interface.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the processing module is further configured to obtain a neighbor relationship table of the eNodeB, and query the eNodeB The cell configuration information, the cell configuration information indicating the cell condition configured on the eNodeB, and the indication information of each eNodeB that needs to establish an X2 interface is generated according to the neighbor relationship table and the cell configuration information.

With reference to the third aspect, the first or the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the sending module passes the northbound interface of the network controller, Sending an interconnection requirement application message to the bearer network cooperative network element, where the wireless network collaborative network element is integrated on a wireless side network element of the software defined network SDN, and the bearer network cooperative network element is integrated in the network controller of the SDN Up; or,

The sending module sends an interconnection requirement request message to the bearer network cooperative network element by using a northbound interface of the network element management system EMS, where the wireless network cooperative network element is integrated on the wireless side network element of the traditional network, where the bearer network A collaborative network element is integrated on the EMS of the legacy network.

With reference to the third aspect, the first, the second, or the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the sending module is further used to Sending an X2 interface deletion indication message to the bearer network cooperative network element, so that the bearer network cooperative network element deletes the X2 interface according to the X2 interface deletion indication message.

In a fourth aspect, a bearer network cooperative network element includes:

a receiving module, configured to receive an interconnection requirement request message sent by the wireless network cooperative network element, where the interconnection requirement application message carries indication information of each evolved node eNodeB that needs to establish an X2 interface;

a processing module, configured to establish, according to the indication information received by the receiving module, a bearer path required for establishing an X2 interface between eNodeBs that need to establish an X2 interface;

And a sending module, configured to send an interconnection requirement response message to the wireless network.

In a first possible implementation manner of the fourth aspect, the processing module is configured to: according to the indication information, map an eNodeB that needs to establish an X2 interface to obtain a configuration path, according to the configuration path, in need A bearer path required for establishing an X2 interface between the eNodeBs of the X2 interface, where the indication information is generated by the radio network cooperative network element according to the neighbor relationship table and the cell configuration information.

In a second possible implementation manner of the fourth aspect, the processing module is configured to acquire network topology information, and establish an X2 between the eNodeBs that need to establish an X2 interface according to the indication information and the network topology information. The bearer path required for the interface.

With reference to the fourth aspect, the first or the second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the receiving module is specifically configured to pass the network The northbound interface of the controller receives the interconnection requirement request message sent by the wireless network cooperative network element, where the bearer network cooperative network element is integrated on a network controller of the software defined network SDN, and the wireless network collaborative network element is integrated in the The wireless side network element of the SDN is received by the northbound interface of the EMS, and the interconnection requirement request message sent by the wireless network cooperative network element is received, and the bearer network cooperative network element is integrated on the network element management system EMS of the traditional network. The wireless network cooperative network element is integrated on a wireless side network element of the traditional network.

With reference to the fourth aspect, the first, the second, or the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the receiving module is further used Receiving an X2 interface deletion indication message sent by the wireless network;

The processing module is further configured to delete the X2 interface according to the X2 interface deletion indication message.

The self-establishment method and device for the X2 interface provided by the embodiment of the present invention, the wireless network cooperative network element responsible for coordinating with the bearer network sends an interconnection requirement application message to the bearer network cooperative network element, and informs the bearer network of the cooperative network element which eNodeBs need Establishing an X2 interface, so that the bearer network cooperative NEs establish the bearer path required to establish an X2 interface between the eNodeBs that need to establish an X2 interface, thereby automatically establishing an X2 interface in a dynamic manner, thereby reducing the complexity of establishing the X2 interface in a static manner. And cost.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventiveness and labor.

1 is a flowchart of Embodiment 1 of a self-establishment method of an X2 interface according to the present invention;

2 is a flowchart of Embodiment 2 of a self-establishment method of an X2 interface according to the present invention;

3 is a logic block diagram of implementing self-establishment of an X2 interface in an SDN network according to the present invention;

4 is a logic block diagram of implementing self-establishment of an X2 interface in a conventional network according to the present invention;

5 is a schematic structural diagram of Embodiment 1 of a wireless network cooperative network element according to the present invention;

6 is a schematic structural diagram of Embodiment 2 of a wireless network cooperative network element according to the present invention;

FIG. 7 is a schematic structural diagram of Embodiment 1 of a bearer network cooperative network element according to the present invention;

8 is a schematic structural diagram of Embodiment 3 of a wireless network cooperative network element according to the present invention;

FIG. 9 is a schematic structural diagram of Embodiment 2 of a bearer network cooperative network element according to the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. Based on the embodiments of the present invention, those skilled in the art are not making creative labor All other embodiments obtained below are within the scope of the invention.

1 is a flowchart of a first embodiment of a self-establishment method of an X2 interface according to the present invention. The execution subject of the present embodiment is a wireless network cooperative network element in a wireless network, and is applicable to a scenario in which an X2 interface is automatically established in a dynamic manner. Specifically, the embodiment includes the following steps:

The wireless network cooperative network element sends an interconnection requirement application message to the bearer network cooperative network element, and the interconnection requirement application message carries the indication information of each eNodeB that needs to establish an X2 interface, so that the bearer network cooperative network element establishes X2 according to the indication information. The establishment of the bearer path required by the interface.

Generally, the wireless access side and the core network part of the wireless communication network may be referred to as a wireless network, and the public data network or the Internet (Internet) part is referred to as a bearer network. In this embodiment, the wireless network side has a wireless network cooperative network element, which is an entity responsible for cooperating with the bearer network, but may be a newly added network element in the network, or may be integrated and set on an existing network element in the wireless network, for example, It can be set in an eNodeB, a Mobile Management Entity (MME), a Service Gateway (SGW), and the like. The bearer network side has a bearer network cooperative network element, and is an entity responsible for cooperating with the wireless network, which may be a newly added network element in the network, or may be integrated and set on the existing network element in the bearer network, for example, may be set in the software. Define the network controller of the network and the element management system (EMS) of the traditional network.

In this step, the wireless network cooperative network element sends an interconnection requirement request message carrying the indication information of each eNodeB that needs to establish an X2 interface to the bearer network cooperative network element, and informs the bearer network cooperative network element which eNodeBs need to configure an X2 interface, so that the bearer network is configured. The cooperative network element establishes a bearer path required for establishing an X2 interface between the eNodeBs that need to establish an X2 interface according to the indication information. After the bearer path is established, it means that the X2 interface is successfully established.

102. The wireless network cooperative network element receives the interconnection requirement response message sent by the bearer network cooperative network element.

After the bearer network cooperative network element successfully establishes the bearer path required to configure the X2 interface according to the indication information, the interworking request response message indicating that the X2 interface is successfully established is sent to the wireless network cooperative network element, and correspondingly, the wireless network cooperative network element receives If the bearer network cooperative network element fails to establish the bearer path required to configure the X2 interface according to the indication information, send a message indicating that the X2 interface fails to be established to the wireless network cooperative network element, and correspondingly The wireless network cooperative network element receives the message.

The X2 interface self-establishment method provided by the embodiment of the present invention, the wireless network cooperative network element responsible for coordinating with the bearer network sends an interconnection requirement application message to the bearer network cooperative network element, and informs the bearer network cooperative network element which eNodeBs need to establish an X2 interface. The bearer network cooperative network element establishes the bearer path required for establishing the X2 interface between the eNodeBs that need to establish the X2 interface, thereby automatically establishing the X2 interface in a dynamic manner, which reduces the complexity and cost of establishing the X2 interface in a static manner.

Further, in the first embodiment, before the wireless network cooperative network element sends the interconnection requirement application message to the bearer network cooperative network element, the eNodeB indication information of the X2 interface needs to be established.

Specifically, the wireless network cooperative network element acquires the neighbor relationship table of the eNodeB, and queries the cell configuration information of the eNodeB, where the configuration information of the area indicates the cell condition configured on the eNodeB. Based on the two pieces of information, the indication information of each eNodeB that needs to establish an X2 interface is generated.

Further, in the first embodiment, the wireless network cooperative network element is integrated on the wireless side network element of the software-defined network, and the bearer network cooperative network element is integrated on the network controller of the software-defined network, and the wireless network cooperative network element is controlled by the network. The northbound interface of the device sends an interconnection request request message to the bearer network cooperative network element; or the wireless network cooperative network element is integrated on the wireless side network element of the traditional network, and the bearer network cooperative network element is integrated in the traditional network element management system EMS The wireless network cooperative network element sends an interconnection requirement application message to the bearer network cooperative network element through the northbound interface of the EMS.

2 is a flowchart of Embodiment 2 of a self-establishment method of an X2 interface according to the present invention. The executor of the present embodiment is a bearer network cooperative network element in a bearer network, and is applicable to a scenario in which an X2 interface is automatically established in a dynamic manner. Specifically, the embodiment includes the following steps:

201. The bearer network cooperative network element receives the interconnection requirement application message sent by the wireless network cooperative network element, and the interconnection requirement application message carries the indication information of each evolved node eNodeB that needs to establish an X2 interface.

For the description of the wireless network, the bearer network, the bearer network cooperative network element, and the wireless network cooperative network element, refer to 101 in the first embodiment of FIG. 1 , and details are not described herein again. In this step, the bearer network cooperative network element receives the interconnection requirement application message that is sent by the wireless network cooperative network element and carries the indication information of each eNodeB that needs to establish an X2 interface.

202. The bearer network cooperative network element needs to establish an eNodeB of the X2 interface according to the indication information. The bearer path required to establish an X2 interface between them.

After receiving the interconnection requirement application message, the bearer path required for establishing the X2 interface is established between the eNodeBs that need to establish an X2 interface according to the indication information carried in the interconnection application message. After the bearer path is established, it means that the X2 interface is successfully established.

203. The collaborative network element sends an interconnection requirement response message to the wireless network.

If the bearer network cooperative network element successfully establishes the bearer path required to configure the X2 interface according to the indication information, then sends an interconnection requirement response message indicating that the X2 interface is successfully established to the wireless network cooperative network element; otherwise, if the bearer network cooperative network element is The indication information, if the bearer path required to configure the X2 interface is not successfully established, sends a message to the wireless network cooperative network element indicating that the X2 interface fails to be established.

The X2 interface self-establishment method provided by the embodiment of the present invention, the bearer network cooperative network element that cooperates with the wireless network, after receiving the wireless network cooperative network element to send the interconnection requirement application message, knows which eNodeBs need to establish an X2 interface, The establishment of the bearer path required for establishing the X2 interface between the eNodeBs that need to establish the X2 interface, thereby automatically establishing the X2 interface in a dynamic manner, thereby reducing the complexity and cost of establishing the X2 interface in a static manner.

Further, in the second embodiment, the indication information is that the wireless network cooperative network element is generated according to the neighbor relationship table and the cell configuration information, and the bearer network cooperative network element maps the eNodeB that needs to establish the X2 interface to obtain the configuration according to the indication information. Path, and the bearer path required to establish an X2 interface between eNodeBs that need to establish an X2 interface according to the configuration path.

Further, in the foregoing Embodiment 2, the bearer network cooperative network element needs to acquire the network topology information of the wireless network before establishing the bearer path required for the X2 interface between the eNodeBs that need to establish the X2 interface according to the indication information. Then, according to the indication information and the network topology information, the bearer path required for the X2 interface is established between the eNodeBs that need to establish the X2 interface.

Further, in the second embodiment, the bearer network cooperative network element is integrated on the network controller of the software-defined network, and the wireless network cooperative network element is integrated on the wireless side network element of the software-defined network, and the bearer network cooperative network element is controlled by the network. The northbound interface of the device receives the interconnection requirement application message sent by the wireless network cooperative network element; or the bearer network cooperative network element is integrated in the network element management system EMS of the traditional network, and the wireless network cooperative network element is integrated in the wireless side network element of the traditional network The bearer network cooperative network element receives the interconnection requirement application message sent by the wireless network collaborative network element through the northbound interface of the EMS.

In recent years, the concept of Software Defined Network (SDN) has been proposed. Among them, OpenFlow technology realizes the separation and separation of control policies and data policies in IP networks. Therefore, based on the OpenFlow technology, the current embodiment of the present invention divides the current wireless communication network into two categories, one is an SDN network using OpenFlow technology, in which the control strategy and the forwarding of the data policy are separated from each other; For a traditional network that does not use OpenFlow technology, the control plane and the data plane are mixed, and physical separation is not implemented. That is, the control policy and data policy forwarding are controlled by the network element management system EMS. In the following, how the technical solution of the present invention implements the self-establishment of the X2 interface in the above two networks will be described in detail.

FIG. 3 is a logic block diagram of implementing self-establishment of an X2 interface in an SDN network according to the present invention. As shown in Figure 3, the right side of the dotted line is the bearer network, which includes the network controller of the SDN network and the OpenFlow switch. The OpenFlow switch can be connected to the network controller through a secure channel through the OpenFlow protocol. The bearer network collaborative network can be integrated in the network. On the controller; the left side of the dotted line is a wireless network, which includes a Self-Organization Network (SON) network element, an Operation Support Subsystem (OSS), an eNodeB, an MME, an SGW, etc., and The Enabler network element, wherein the Enabler is a network element that opens the wireless network capability to the outside, and the wireless network cooperative network element is deployed on the network element.

Specifically, the working principle is as follows: First, the Enabler network element obtains the temporary relationship table, and queries the cell configuration information of each eNodeB. The temporary relationship table can be automatically obtained by the terminal, and directly reported to the Enabler network element, or reported to the Enabler through other network elements, and the eNodeB, which cells are configured, can be found on the OSS system or other network elements, according to The neighbor relationship table and the cell configuration information, the Enabler determines which eNodeBs need to be configured with the X2 interface. For example, after querying the OSS system, a certain three eNodeBs are found, which are assumed to be the first eNodeB, the second eNodeB, and the third eNodeB, where the first eNodeB is configured with the cell A and the cell B, and the second eNodeB is configured with the cell C, In the cell D, the third eNodeB is configured with the cell E and the cell F. If the cell relationship table indicates that the cell A and the cell C are neighbor cells, and the cell D and the cell E are neighbor cells, the first eNodeB and the second eNodeB are The X2 interface needs to be configured between the first eNodeB and the third eNodeB, and the X2 interface is not required to be configured between the first eNodeB and the third eNodeB. The Enabler network element generates the fingers of each eNodeB that needs to establish an X2 interface according to the relationship table and the cell configuration information. Show information. In addition, if the Enabler network element does not store the IP information of the X2 interface of the related eNodeB, the related information such as the IP of the X2 interface needs to be acquired.

Secondly, after obtaining the foregoing various information, the Enabler sends an interconnection requirement application message carrying the indication information to the network controller through the northbound interface of the network controller, for example, the REST interface, to notify the network controller of which two eNodeBs are specific. A bearer link needs to be configured between the two IP addresses to establish an X2 interface. Specifically, the example of the interconnection requirement application message is as follows:

POST http://www.sdncontroller.org/order<resource-order><item>...HTTP/1.1

The key items (ITEM) are 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 the X2 interface needs to be deleted, the Enabler NE sends an X2 interface deletion indication message to the network controller, so that the Enabler network element deletes the X2 interface according to the X2 interface deletion indication message. Specifically, the X2 interface deletes the indication message as follows:

DELETE http://www.sdncontroller.org/delete<resource-order><item>...HTTP/1.1.

After the network controller obtains the information sent by the Enabler, according to the obtained network topology information of the entire network, for example, a Link Layer Discovery Protocol (LLDP), an intermediate system to an intermediate system (Intermediate system to The intermediate system (ISIS) protocol or other topology discovery protocol obtains network topology information, generates flow table information, and delivers the information. Give the corresponding OpenFlow switch. The flow table information is a forwarding rule, indicating which eNodeBs need to forward control policies and data policies.

Finally, the OpenFlow switch generates a flow table based on the flow table information and establishes a forwarding path, thereby achieving the purpose of automatically establishing an X2 interface according to requirements. After the self-establishment of the X2 interface, the network controller responds to the interconnection requirement response message to the Enabler network element.

In the above embodiment, after the eNodeB accesses the bearer network, the Enabler network element learns the IP address of the eNodeB through the address resolution protocol (ARP) of the eNodeB, and of course, can also be monitored by the dynamic host configuration protocol ( Dynamic Host Configuration Protocol snooping (DHCP snooping) learns to obtain the IP address of the eNodeB. Therefore, after the Enabler network element sends the IP address of the eNodeB to the network controller, the network controller can know the OpenFlow switch connected by the eNodeB, thereby automatically establishing a forwarding path between the network controller and the OpenFlow switch in the bearer network.

It should be noted that, in the above embodiments, the wireless network is an IP-based network as an example. The wireless network cooperative network element needs to obtain the IP address of the X2 interface of the eNodeB. However, the present invention is not limited thereto. In other possible implementations, the wireless network may also be a non-IP based network.

In addition, it should be noted that FIG. 3 is only a logical block diagram, and the connecting lines in the figure only indicate the logical relationship of each network, and do not refer to a specific connection manner.

FIG. 4 is a logic block diagram of implementing self-establishment of an X2 interface in a conventional network according to the present invention. As shown in Figure 4, the right side of the dotted line is the bearer network, which includes the element management system (EMS) and the bearer equipment of the traditional network. The bearer network cooperative network element can be integrated and set in the network element management system. The dotted line side is a wireless network, which includes a Self-Organization Network (SON) network element, an eNodeB, an MME, an SGW, and the like, and a Wireless Operation Support System (Wireless OSS), where the Wireless OSS network element A wireless network collaborative network element is deployed.

Specifically, the working principle is as follows: First, the Wireless OSS obtains the temporary relationship table and queries the cell configuration information of each eNodeB. For details, refer to the implementation process of the Enabler network element in the foregoing embodiment of FIG. 3, and details are not described herein again.

Secondly, after obtaining the temporary relationship table, the cell configuration information, and the related address information, such as IP, and converting the information into the indication information, the Wireless OSS passes the northbound interface of the network element management system. An interconnection requirement application message carrying the indication information is sent to the network element management system to notify the network controller of which two eNodeBs, and specifically, which two IP addresses need to be configured with a bearer link to establish an X2 interface.

After the network element management system obtains the information sent by the Wireless OSS, the network topology information is obtained, and the topology information and the interconnection request application message are sent to the bearer device, and the bearer device performs the bearer link required for establishing the X2 interface. Established to implement the self-establishment process of the X2 interface.

In the above embodiment, since the northbound interface of the network element management system of the bearer network is a northbound interface of atomic level operation, the wireless network needs to run a script to implement automatic establishment of the X2 interface.

It should be noted that FIG. 4 is only a logical block diagram, and the connecting lines in the figure only indicate the logical relationship of each network, and do not refer to a specific connection manner.

FIG. 5 is a schematic structural diagram of Embodiment 1 of a wireless network cooperative network element according to the present invention. The wireless network cooperative network element provided in this embodiment is an apparatus embodiment corresponding to the embodiment of FIG. 1 of the present invention, and the specific implementation process is not described herein again. Specifically, the wireless network collaboration network element 100 provided in this embodiment specifically includes:

The sending module 11 is configured to send an interconnection requirement request message to the bearer network cooperative network element, where the interconnection requirement application message carries the indication information of each eNodeB that needs to establish an X2 interface, so that the bearer network cooperative network element establishes the X2 according to the indication information. The establishment of the required bearer path;

The receiving module 12 is configured to receive an interconnection requirement response message sent by the network cooperative network element.

The wireless network cooperative network element provided by the embodiment of the present invention is configured to send a connection request request message to the bearer network cooperative network element of the wireless network cooperative network element that cooperates with the bearer network, and notify the bearer network cooperative network element which eNodeBs need to establish an X2 interface. The bearer network cooperative network element establishes the bearer path required for establishing the X2 interface between the eNodeBs that need to establish the X2 interface, thereby automatically establishing the X2 interface in a dynamic manner, which reduces the complexity and cost of establishing the X2 interface in a static manner.

FIG. 6 is a schematic structural diagram of Embodiment 2 of a wireless network cooperative network element according to the present invention. As shown in FIG. 6, the wireless network cooperative network element provided in this embodiment is further based on the wireless network cooperative network element shown in FIG. 5, and further includes:

The processing module 13 is configured to generate indication information of each evolved node eNodeB that needs to establish an X2 interface.

Further, the processing module 13 is further configured to obtain a neighbor relationship table of the eNodeB, query the cell configuration information of the eNodeB, and the cell configuration information indicates the cell condition configured on the eNodeB, and generate the X2 according to the neighbor relationship table and the cell configuration information. The indication information of each evolved node eNodeB of the interface.

Further, the sending module 11 sends an interconnection requirement application message to the bearer network cooperative network element through the northbound interface of the network controller, and the wireless network cooperative network element is integrated on the wireless side network element of the software defined network SDN, and the bearer network cooperative network element is integrated. On the network controller of the SDN; or,

The sending module 11 sends an interconnection requirement request message to the bearer network cooperative network element through the northbound interface of the network element management system EMS, and the wireless network cooperative network element is integrated on the wireless side network element of the traditional network, and the bearer network cooperative network element is integrated in the traditional network. On EMS

Further, the sending module 11 is further configured to send an X2 interface deletion indication message to the bearer network cooperative network element, so that the bearer network cooperative network element deletes the indication message according to the X2 interface, and deletes the X2 interface.

FIG. 7 is a schematic structural diagram of Embodiment 1 of a bearer network cooperative network element according to the present invention. The wireless network cooperative network element provided in this embodiment is an apparatus embodiment corresponding to the embodiment of FIG. 2 of the present invention, and the specific implementation process is not described herein again. Specifically, the bearer network cooperative network element 200 provided in this embodiment specifically includes:

The receiving module 21 is configured to receive an interconnection requirement application message sent by the wireless network cooperative network element, where the interconnection requirement application message carries indication information of each evolved node eNodeB that needs to establish an X2 interface;

The processing module 22 is configured to establish, according to the indication information received by the receiving module 21, a bearer path required for establishing an X2 interface between the eNodeBs that need to establish an X2 interface;

The sending module 23 is configured to send an interconnection requirement response message to the wireless network.

The bearer network cooperative network element provided by the embodiment of the present invention, the bearer network cooperative network element that performs the cooperation with the wireless network, after receiving the communication request message of the wireless network cooperative network element, knows which eNodeBs need to establish an X2 interface, And establishing an bearer path required for establishing an X2 interface between eNodeBs that need to establish an X2 interface, thereby automatically establishing X2 in a dynamic manner. The interface reduces the complexity and cost of establishing an X2 interface in a static manner.

Further, the processing module 22 is configured to: according to the indication information, map an eNodeB that needs to establish an X2 interface to obtain a configuration path, and establish a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface according to the configuration path, where The indication information is generated by the wireless network cooperative network element according to the neighbor relationship table and the cell configuration information.

Further, the processing module 22 is configured to acquire network topology information, and establish a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface according to the indication information and the network topology information.

Further, the receiving module 21 is configured to receive, by using a northbound interface of the network controller, an interconnection requirement application message sent by the wireless network collaborative network element, where the bearer network cooperative network element is integrated on a network controller of the software defined network SDN, and the wireless network cooperates. The network element is integrated on the wireless side network element of the SDN; or the northbound interface of the EMS receives the interconnection requirement application message sent by the wireless network collaborative network element, and the bearer network cooperative network element is integrated in the traditional network element management system EMS, wireless The network cooperative network element is integrated on the wireless side network element of the traditional network.

Further, the receiving module 21 is further configured to receive an X2 interface deletion indication message sent by the wireless network, and the processing module 22 is further configured to delete the X2 interface according to the X2 interface deletion indication message.

FIG. 8 is a schematic structural diagram of Embodiment 3 of a wireless network cooperative network element according to the present invention. As shown in FIG. 8, the wireless network cooperative network element 300 provided in this embodiment includes: a processor 31, a memory 32, a transmitter 33, and a receiver 34. The memory 32, the transmitter 33 and the receiver 34 are connected to the processor 31 via a bus. The memory 32 stores execution instructions. When the wireless network cooperative network element 300 is running, the processor 31 communicates with the memory 32, and the processor 31 executes the execution instructions so that the wireless network cooperates with the network element 300 to execute the X2 interface provided by the present invention. Establish a method.

The transmitter 33 is configured to send an interconnection requirement request message to the bearer network cooperative network element, where the interconnection requirement application message carries the indication information of each eNodeB that needs to establish an X2 interface, so that the bearer network cooperative network element is established according to the indication information. The establishment of the bearer path required by X2;

The receiver 34 is configured to receive an interconnection requirement response message sent by the bearer network cooperative network element.

Further, the processor 31 is configured to generate indication information of each evolved node eNodeB that needs to establish an X2 interface.

Further, the processor 31 is configured to obtain a neighbor relationship table of the eNodeB, and generate, according to the neighbor relationship table and the cell configuration information, indication information of each evolved node eNodeB that needs to establish an X2 interface.

Further, the transmitter 33 is configured to send, by using a northbound interface of the network controller, an interconnection requirement application message to the bearer network cooperative network element, where the wireless network cooperative network element is integrated on the wireless side network element of the software defined network SDN, and the bearer network cooperation is performed. The network element is integrated on the network controller of the SDN; or the transmitter 33 is configured to send an interconnection requirement application message to the bearer network cooperative network element through the northbound interface of the EMS, and the wireless network cooperative network element is integrated in the wireless side network of the traditional network. In the element, the bearer network cooperative network element is integrated on the EMS of the traditional network element management system.

Further, the transmitter 33 is configured to send an X2 interface deletion indication message to the bearer network cooperative network element, so that the bearer network cooperative network element deletes the indication message according to the X2 interface, and deletes the X2 interface.

FIG. 9 is a schematic structural diagram of Embodiment 2 of a bearer network cooperative network element according to the present invention. As shown in FIG. 9, the bearer network cooperative network element 400 provided in this embodiment includes: a processor 41, a memory 42, a transmitter 43, and a receiver 44. The memory 42, the transmitter 43, and the receiver 44 are connected to the processor 41 via a bus. The memory 42 stores execution instructions. When the bearer network cooperative network element 400 is running, the processor 41 communicates with the memory 42, and the processor 41 executes the execution instruction so that the bearer network cooperative network element 400 performs the X2 interface provided by the present invention. Establish a method.

The receiver 44 is configured to receive an interconnection requirement application message sent by the wireless network cooperative network element, where the interconnection requirement application message carries indication information of each evolved node eNodeB that needs to establish an X2 interface;

The processor 41 is configured to establish, according to the indication information, a bearer path required for establishing an X2 interface between the eNodeBs that need to establish an X2 interface;

The transmitter 42 is configured to send an interconnection demand response message to the wireless network.

Further, the processor 41 is configured to: according to the indication information, map the eNodeB that needs to establish the X2 interface to obtain the configuration path, and establish a bearer path required for the X2 interface between the eNodeBs that need to establish the X2 interface according to the configuration path, where The indication information is generated by the wireless network cooperative network element according to the neighbor relationship table and the cell configuration information.

Further, the processor 41 is configured to acquire network topology information, and establish a bearer required for the X2 interface between the eNodeBs that need to establish an X2 interface according to the indication information and the network topology information. path.

Further, the receiver 44 is configured to receive, by using a northbound interface of the network controller, an interconnection requirement application message sent by the wireless network cooperative network element, where the bearer network cooperative network element is integrated on a network controller of the software defined network SDN, and the wireless network collaboration network The receiver is integrated on the wireless side network element of the SDN; or the receiver 44 is configured to receive the interconnection requirement application message sent by the wireless network cooperative network element through the northbound interface of the EMS, and the network element of the legacy network is integrated in the traditional network. On the system EMS, the wireless network cooperative network element is integrated on the wireless side network element of the traditional network.

Further, the receiver 44 is configured to receive an X2 interface deletion indication message sent by the wireless network, and correspondingly, the processor 41 is configured to delete the X2 interface according to the X2 interface deletion indication message.

One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above may be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

A self-establishing method for an X2 interface, comprising:

The wireless network cooperative network element sends an interconnection requirement request message to the bearer network cooperative network element, where the interconnection requirement application message carries indication information of each evolved node eNodeB that needs to establish an X2 interface, so that the bearer network cooperative network element according to the indication Information is established to establish a bearer path required to establish X2;

The wireless network cooperative network element receives the interconnection requirement response message sent by the bearer network cooperative network element.
The method according to claim 1, wherein before the wireless network cooperative network element sends the interconnection requirement application message to the bearer network cooperative network element, the method further includes:

The wireless network cooperative network element generates indication information of each evolved node eNodeB that needs to establish an X2 interface.
The method according to claim 2, wherein before the wireless network cooperative network element generates the indication information of each evolved node eNodeB that needs to establish an X2 interface, the method includes:

The wireless network cooperative network element acquires a neighbor relationship table of the eNodeB;

The wireless network cooperative network element queries the cell configuration information of the eNodeB, where the cell configuration information indicates a cell condition configured on the eNodeB;

The wireless network cooperative network element generates the indication information of each eNodeB that needs to establish an X2 interface, including:

The wireless network cooperative network element generates, according to the neighbor relationship table and the cell configuration information, indication information of each evolved node eNodeB that needs to establish an X2 interface.
The method according to any one of claims 1 to 3, wherein the wireless network cooperative network element sends an interconnection requirement application message to the bearer network, including:

The wireless network cooperative network element is integrated on the wireless side network element of the software defined network SDN, and the bearer network cooperative network element is integrated on the network controller of the SDN, and the wireless network cooperative network element is controlled by the network. The northbound interface of the device sends an interconnection requirement application message to the bearer network cooperative network element; or

The wireless network cooperative network element is integrated on the wireless side network element of the traditional network, and the bearer network cooperative network element is integrated on the network element management system EMS of the traditional network, and the wireless network cooperative network element passes the EMS. The northbound interface sends an interconnection requirement application message to the bearer network cooperative network element.
The method according to any one of claims 1 to 4, further comprising:

The wireless network cooperative network element sends an X2 interface deletion indication message to the bearer network cooperative network element, so that the bearer network cooperative network element deletes the X2 interface according to the X2 interface deletion indication message.
A self-establishing method for an X2 interface, comprising:

The bearer network cooperative network element receives the interconnection requirement request message sent by the wireless network cooperative network element, where the interconnection requirement application message carries the indication information of each evolved node eNodeB that needs to establish an X2 interface;

According to the indication information, the bearer network cooperative network element establishes a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface;

The bearer network cooperative network element sends an interconnect requirement response message to the wireless network.
The method according to claim 6, wherein the indication information is generated by the wireless network cooperative network element according to a neighbor relationship table and cell configuration information;

According to the indication information, the bearer network cooperative network element needs to establish a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface, including:

The bearer network cooperative network element performs mapping on the eNodeB that needs to establish an X2 interface according to the indication information to obtain a configuration path.

The bearer network cooperative network element establishes a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface according to the configuration path.
The method according to claim 6, wherein the bearer network cooperative network element, according to the indication information, before the bearer path required for establishing the X2 interface between the eNodeBs that need to establish the X2 interface, includes:

The bearer network cooperative network element acquires network topology information;

The bearer path required to establish an X2 interface between the eNodeBs that need to establish an X2 interface according to the indication information, including:

The bearer network cooperative network element establishes a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface according to the indication information and the network topology information.
The method according to any one of claims 6 to 8, wherein the bearer network cooperative network element receives the interconnection requirement application message sent by the wireless network collaborative network element, and includes:

The bearer network cooperative network element is integrated on the network controller of the software-defined network SDN, and the wireless network cooperative network element is integrated on the wireless side network element of the SDN, and the bearer network cooperative network element is controlled by the network. The northbound interface of the device receives the interconnection requirement application message sent by the wireless network collaborative network element; or

The bearer network cooperative network element is integrated on the network element management system EMS of the traditional network, and the wireless network cooperative network element is integrated on the wireless side network element of the traditional network, and the bearer network cooperative network element passes the EMS. The northbound interface receives the interconnection requirement application message sent by the wireless network collaborative network element.
The method according to any one of claims 6 to 9, further comprising:

The bearer network cooperative network element receives an X2 interface deletion indication message sent by the wireless network;

The bearer network cooperative network element deletes the X2 interface according to the X2 interface deletion indication message.
A wireless network cooperative network element, comprising:

a sending module, configured to send an interconnection requirement request message to the bearer network cooperative network element, where the interconnection requirement application message carries indication information of each eNodeB that needs to establish an X2 interface, so that the bearer network cooperative network element according to the indication Information is established to establish a bearer path required to establish X2;

The receiving module is configured to receive an interconnection requirement response message sent by the bearer network cooperative network element.
The wireless network cooperative network element according to claim 11, further comprising:

And a processing module, configured to generate indication information of each evolved node eNodeB that needs to establish an X2 interface.
The wireless network cooperative network element according to claim 12, wherein

The processing module is further configured to obtain a neighbor relationship table of the eNodeB, and query cell configuration information of the eNodeB, where the cell configuration information indicates a cell condition configured on the eNodeB, according to the neighbor relationship table and The cell configuration information is used to generate indication information of each evolved node eNodeB that needs to establish an X2 interface.
The wireless network cooperative network element according to any one of claims 11 to 13, wherein

The sending module sends an interconnection requirement request message to the bearer network cooperative network element by using a northbound interface of the network controller, where the wireless network cooperative network element is integrated on a wireless side network element of the software defined network SDN, where the bearer network The cooperative network element is integrated on the network controller of the SDN; or

The sending module sends an interconnection requirement request message to the bearer network cooperative network element by using a northbound interface of the network element management system EMS, where the wireless network cooperative network element is integrated on the wireless side network element of the traditional network, where the bearer network A collaborative network element is integrated on the EMS of the legacy network.
The wireless network cooperative network element according to any one of claims 11 to 14, wherein

The sending module is further configured to send an X2 interface deletion indication message to the bearer network cooperative network element, so that the bearer network cooperative network element deletes the X2 interface according to the X2 interface deletion indication message.
A bearer network cooperative network element, which is characterized by:

a receiving module, configured to receive an interconnection requirement request message sent by the wireless network cooperative network element, where the interconnection requirement application message carries indication information of each evolved node eNodeB that needs to establish an X2 interface;

a processing module, configured to establish, according to the indication information received by the receiving module, a bearer path required for establishing an X2 interface between eNodeBs that need to establish an X2 interface;

And a sending module, configured to send an interconnection requirement response message to the wireless network.
The bearer network cooperative network element according to claim 16, wherein

The processing module is configured to: according to the indication information, map an eNodeB that needs to establish an X2 interface to obtain a configuration path, and establish a bearer path required for establishing an X2 interface between the eNodeBs that need to establish an X2 interface according to the configuration path. The indication information is generated by the wireless network cooperative network element according to the neighbor relationship table and the cell configuration information.
The bearer network cooperative network element according to claim 16, wherein

The processing module is configured to acquire network topology information, and establish a bearer path required for the X2 interface between the eNodeBs that need to establish an X2 interface according to the indication information and the network topology information.
The bearer network cooperative network element according to any one of claims 16 to 18, wherein

The receiving module is configured to receive, by using a northbound interface of the network controller, an interconnection requirement request message sent by the wireless network collaborative network element, where the bearer network cooperative network element is integrated on a network controller of a software defined network SDN The wireless network cooperative network element is integrated on the wireless side network element of the SDN; or the northbound interface of the EMS receives the interconnection requirement application message sent by the wireless network cooperative network element, where the bearer network collaborative network The element is integrated on the network element management system EMS of the traditional network, and the wireless network cooperative network element is integrated on the wireless side network element of the traditional network.
The bearer network cooperative network element according to any one of claims 16 to 19, wherein

The receiving module is further configured to receive an X2 interface deletion indication message sent by the wireless network;

The processing module is further configured to delete the X2 interface according to the X2 interface deletion indication message.