WO2020029784A1

WO2020029784A1 - Method for obtaining address, and method and device for sending address

Info

Publication number: WO2020029784A1
Application number: PCT/CN2019/097068
Authority: WO
Inventors: 李大鹏; 高音
Original assignee: 中兴通讯股份有限公司
Priority date: 2018-08-10
Filing date: 2019-07-22
Publication date: 2020-02-13
Also published as: CN110830600A; CN110830600B

Abstract

Provided are a method for obtaining an address, and a method and device for sending an address. The method for obtaining an address comprises: receiving an interface message sent by a proxy base station connected to a core network or sent by the core network, wherein the interface message carries a transport layer address of a second base station, and the second base station is connected to the proxy base station and is not directly connected to the core network; and obtaining the transport layer address of the second base station carried in the interface message.

Description

Method for obtaining address, method and device for sending address

This application claims priority from a Chinese patent application filed with the Chinese Patent Office on August 10, 2018 with application number 201810911026.X, the entire contents of which are incorporated herein by reference.

Technical field

The present application relates to the field of communications, and in particular, to an address acquisition method, an address transmission method, and a device.

Background technique

In some network architectures, there are base station nodes that have established a control plane connection with the core network (Evolved Packet Core, EPC), and there are also base station nodes that have not established a control plane connection with the core network. For these base station nodes that have not established a control plane connection with the core network, the base station nodes that have established a control plane connection with the core network can obtain the name information or identification information of the base station node through the Automatic Neighborhood Relationship Function (ANR). (For example, the next generation base station node identifier (Next Generation NodeB Identifier, gNB ID)), but the transport layer address information (Transport Network Layer Address, TNL address) of the base station node cannot be obtained. Because some connections, such as Stream Control Transmission Protocol (SCTP) connections, require both parties to know each other's own transport layer address. When other base station nodes cannot know each other's transport layer address, they cannot communicate with each other. The other party establishes a connection; accordingly, these base station nodes that have not established a control plane connection with the core network cannot obtain the transmission layer address information of other base station nodes, and thus cannot establish a connection between the two.

Summary of the invention

Embodiments of the present invention provide a method for obtaining an address, a method for sending an address, and a device, so as to at least solve a problem that a base station node connected to a core network cannot obtain transmission layer address information of a base station node not connected to the core network in related technologies .

According to an embodiment of the present application, a method for obtaining an address, which is applied to a first base station connected to a core network, includes:

Receiving an interface message sent by an agent base station connected to the core network or sent by the core network, wherein the interface message carries a transport layer address of a second base station, and the second base station and the agent The base station is connected and has no direct connection with the core network;

Acquiring a transport layer address of the second base station carried in the interface message.

According to an embodiment of the present application, a method for sending an address, which is applied to a proxy base station connected to a core network, includes:

Sending or sending a first interface message to a first base station connected to the core network, where the first interface message carries a transport layer address of a second base station and is sent to the core network The first interface message is used to instruct the core network to send a second interface message to the first base station, where the second interface message carries the second network interface message obtained by the core network from the first interface message. A transport layer address of a second base station, where the second base station is connected to the proxy base station and has no direct connection to the core network.

According to an embodiment of the present application, an address sending method is provided, which is applied to a second base station and includes: sending a first interface message to a proxy base station, wherein the first interface message carries a message of the second base station. Transport layer address, the first interface message is used to instruct the proxy base station to send or send a second interface message to the first base station connected to the core network, where the second interface message carries the The proxy base station obtains the transport layer address of the second base station from the first interface message, the proxy base station is connected to the core network, the second base station is connected to the proxy base station, and is connected to the proxy base station The core network is not directly connected.

According to an embodiment of the present application, a method for obtaining an address, which is applied to a second base station, includes: receiving a first interface message sent by a proxy base station connected to a core network, where the first interface message carries To obtain a transport layer address of a first base station connected to the core network, the second base station is connected to the proxy base station and is not directly connected to the core network; obtaining the first base station carried in the first interface message The transport layer address of a base station.

According to an embodiment of the present application, an address sending method applied to a proxy base station connected to a core network includes: sending a first interface message to a second base station, where the first interface message carries The transport layer address of a first base station connected to the core network, the second base station is connected to the proxy base station and has no direct connection to the core network.

According to an embodiment of the present application, an address sending method applied to a first base station connected to a core network includes: sending the first base station to the core network or sending a first base station to a proxy base station connected to the core network. An interface message, where the first interface message carries a transport layer address of the first base station, and the first interface message sent to the core network is used to instruct the core network to send the carrying information to the proxy base station. The second interface message of the transport layer address of the first base station obtained by the core network, and the first interface message sent to the proxy base station is used to instruct the proxy base station to send a second base station carrying the proxy The third interface message of the transport layer address of the first base station obtained by the base station, the second base station is connected to the proxy base station and has no direct connection to the core network.

According to another embodiment of the present application, a first base station is provided. The first base station is connected to a core network, and includes: a receiving module, configured to receive a packet sent by a proxy base station connected to the core network or sent by a proxy base station. The interface message sent by the core network, wherein the interface message carries a transport layer address of a second base station, the second base station is connected to the proxy base station and has no direct connection to the core network;

An obtaining module, configured to obtain a transport layer address of the second base station carried in the interface message.

According to another embodiment of the present application, a proxy base station is provided. The proxy base station is connected to the core network, and includes:

A sending module, configured to send or send a first interface message to a first base station connected to the core network, where the first interface message carries a transport layer address of a second base station and sends the The first interface message sent by the core network is used to instruct the core network to send a second interface message to the first base station, and the second interface message carries the core network message from the first interface The transport layer address of the second base station obtained in the second base station is connected to the proxy base station and has no direct connection to the core network.

According to another embodiment of the present application, a second base station is provided, including:

A sending module, configured to send a first interface message to the proxy base station, wherein the first interface message carries a transport layer address of the second base station, and the first interface message is used to instruct the proxy base station to send a message to the The first base station connected to the core network sends or sends a second interface message to the core network, wherein the second interface message carries the second base station obtained by the proxy base station from the first interface message. The proxy base station is connected to the core network, the second base station is connected to the proxy base station and is not directly connected to the core network.

A receiving module, configured to receive a first interface message sent by a proxy base station connected to a core network, where the first interface message carries a transport layer address of a first base station connected to the core network, and the first Two base stations are connected to the proxy base station and are not directly connected to the core network;

An obtaining module, configured to obtain a transport layer address of the first base station carried in the first interface message.

A sending module, configured to send a first interface message to a second base station, where the first interface message carries a transport layer address of the first base station connected to the core network, and the second base station and the agent The base station is connected and has no direct connection with the core network.

According to another embodiment of the present application, a first base station is provided. The first base station is connected to a core network and includes:

A sending module, configured to send a first interface message to the core network or to a proxy base station connected to the core network, where the first interface message carries a transport layer address of the first base station, and The first interface message sent by the core network is used to instruct the core network to send a second interface message carrying the transport layer address of the first base station obtained by the core network to the proxy base station, and to the proxy base station The first interface message sent is used to instruct the proxy base station to send to the second base station a third interface message carrying the transport layer address of the first base station obtained by the proxy base station, and the second base station communicates with all The proxy base station is connected and has no direct connection with the core network.

According to another embodiment of the present application, a system is provided, including a core network, and further including a first base station as described above, a proxy base station as described above, and a second base station as described above.

According to another embodiment of the present application, a system is provided, including a core network, and further including a second base station as described above, a proxy base station as described above, and a first base station as described above.

According to yet another embodiment of the present application, an electronic device is provided, including a memory and a processor. The memory stores a computer program, and the processor is configured to run the computer program to perform any one of the foregoing methods. Steps in the examples.

Through this application, since the core network or the proxy base station sends the transport layer address information of the second base station node that is not connected to the core network to the base station node that is connected to the core network, the base station nodes connected to the core network get unconnected. The transport layer address information of the second base station on which the core network establishes a connection, therefore, the problem that the base station node connected to the core network in the related art cannot obtain the transport layer address information of the base station node that is not connected to the core network can be solved. To achieve the effect of improving the connectivity between network elements in the network architecture.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described here are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

FIG. 1 is a schematic diagram of a network architecture according to an embodiment of the present invention;

2 is a flowchart of an address acquisition method according to an embodiment of the present invention;

3 is a flowchart of an address sending method according to an embodiment of the present invention;

4 is a flowchart of sending an address according to an embodiment of the present invention;

5 is a flowchart of an address acquisition method according to an embodiment of the present invention;

6 is a flowchart of sending an address according to an embodiment of the present invention;

7 is a flowchart of sending an address according to an embodiment of the present invention;

8 is a structural block diagram of a first base station according to an embodiment of the present invention;

9 is a structural block diagram of a proxy base station according to an embodiment of the present invention;

10 is a structural block diagram of a second base station according to an embodiment of the present invention;

11 is a structural block diagram of a second base station according to an embodiment of the present invention;

12 is a structural block diagram of a proxy base station according to an embodiment of the present invention;

13 is a structural block diagram of a first base station according to an embodiment of the present invention;

14 is a schematic structural diagram of a network architecture according to an embodiment of the present application;

15 is a schematic structural diagram of a network architecture according to an embodiment of the present application;

FIG. 16 is a schematic structural diagram of a network architecture according to an embodiment of the present application.

detailed description

Hereinafter, the present application will be described in detail with reference to the drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

It should be noted that the terms “first” and “second” in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

In addition, it should be noted that “base station” and “base station node” in the following refer to the same object, that is, both refer to a certain base station. The “first base station” in the embodiment of the present invention does not refer to a specific base station, and may be any base station connected to the core network. Similarly, the “agent base station” may also be any base station connected to the core network. The "second base station" may be any base station that is not directly connected to the core network and is connected to the proxy base station.

The embodiment of the present application can be run on the network architecture shown in FIG. 1. As shown in FIG. 1, the network architecture includes: a core network, a first base station, a proxy base station, and a second base station, where the first base station and the proxy base station are respectively Connected to the core network, the second base station is connected to the proxy base station and there is no direct connection between the second base station and the core network.

Example 1

In this embodiment, a method for obtaining an address running in the foregoing network architecture is provided, which is applied to a first base station. FIG. 2 is a flowchart of a method for obtaining an address according to an embodiment of the present invention. As shown in FIG. It includes the following steps:

Step S202: Receive an interface message sent by the proxy base station connected to the core network or sent by the core network, where the interface message carries the transport layer address of the second base station obtained by the proxy base station or the core network. The second base station is connected to the proxy base station and is not directly connected to the core network.

Step S204: Obtain a transport layer address of the second base station carried in the interface message.

Through the above steps, since the core network or the proxy base station sends the transport layer address information of the second base station node that is not connected to the core network to the base station node that is connected to the core network, the base station nodes connected to the core network get unconnected. The transport layer address information of the second base station on which the core network establishes a connection, therefore, the problem that the base station node connected to the core network in the related art cannot obtain the transport layer address information of the base station node that is not connected to the core network can be solved. To achieve the effect of improving the connectivity between network elements in the network architecture.

It should be noted that the connection between the proxy base station and the core network may be a direct connection or an indirect connection, and the connection type may be a control plane connection.

Optionally, the execution subject of the above steps may be a base station or the like, but is not limited thereto.

Optionally, receiving the interface message sent by the proxy base station connected to the core network or sent by the core network includes at least one of the following: when the transport layer address of the second base station is stored on the core network, receiving the message sent by the core network Interface message, where the transport layer address is sent by the second base station to the core network through the proxy base station; when the transport layer address of the second base station is stored on the proxy base station, the interface message sent by the proxy base station is received, where the transport layer address It is passed by the second base station to the proxy base station; when the transport layer address of the second base station is stored on the second base station, the interface message sent by the second base station through the proxy base station connected to the core network or sent through the core network is received.

Optionally, when the transport layer address of the second base station is stored on the core network, before receiving the interface message sent by the core network, the method further includes: sending an address request message to the core network, where the address request message is used to request to obtain the second base station The transport layer address, where the address request message carries the identifier of the second base station.

Optionally, when the transport layer address of the second base station is stored on the proxy base station, before receiving the interface message sent by the proxy base station, the method further includes: sending an address request message to the proxy base station, and the address request message is used to request to obtain the second base station. The transport layer address of the base station, where the address request message carries the identity of the second base station.

Optionally, when the transport layer address of the second base station is stored on the second base station, before receiving the interface message sent by the second base station through the proxy base station connected to the core network or sent through the core network, the method further includes: The proxy base station or core network sends an address request message. The address request message is used to request to obtain the transport layer address of the second base station. The address request message carries the identifier of the second base station, and the address request message is used to instruct the proxy base station to The second base station acquires the transport layer address of the second base station or instructs the core network to obtain the transport layer address of the second base station from the second base station through the proxy base station.

Optionally, before sending the address request message to the proxy base station, the method further includes: receiving the identity of the proxy base station sent by the proxy base station, the identity of the second base station connected to the proxy base station, and the correspondence relationship between the second base station and the proxy base station or Receive the identifier of the proxy base station, the identifier of the second base station connected to the proxy base station, the correspondence between the second base station and the proxy base station, and the storage state of the transport layer address of the second base station, where the storage state is used to indicate Whether the proxy base station stores the transport layer address of the second base station.

This embodiment also provides a method for sending an address running in the foregoing network architecture, which is applied to a proxy base station. FIG. 3 is a flowchart of a method for obtaining an address according to an embodiment of the present invention. As shown in FIG. 3, this process It includes the following steps:

Step S302: Send or send a first interface message to the first base station connected to the core network, where the first interface message carries the transport layer address of the second base station obtained by the proxy base station, and sends the first interface message to the core network. An interface message is used to instruct the core network to send a second interface message to the first base station. The second interface message carries the transport layer address of the second base station obtained by the core network from the first interface message. The second base station is connected to the proxy base station. And there is no direct connection to the core network.

Through the above steps, the problem that the base station node connected to the core network cannot obtain the transport layer address information of the base station node not connected to the core network in the related art is solved. To achieve the effect of improving the connectivity between network elements in the network architecture.

Optionally, before sending or sending the first interface message to the first base station connected to the core network, the method further includes: receiving a third interface message sent by the second base station; and obtaining a first interface message carried in the third interface message. The transport layer address of the two base stations.

Optionally, before receiving the third interface message sent by the second base station, the method further includes: sending a first address request message to the second base station, where the first address request message is used to request to obtain a transport layer address of the second base station .

Optionally, before sending or sending the first interface message to the first base station connected to the core network, the method further includes: receiving a second address request message sent by the first base station or sent by the core network, the first The two address request message is used for requesting to obtain the transport layer address of the second base station. The second address request message carries the identifier of the second base station, and the second address request message sent by the core network carries the first The identity of the second base station is obtained by the core network from the first base station, and the second address request message is used to indicate at least one of the following: instruct the proxy base station to send a first interface message to the first base station; and instruct the proxy base station to send the first to the core network. Interface message; instructs the proxy base station to send the first interface message to the first base station after obtaining the transport layer address of the second base station from the second base station; instructs the proxy base station to obtain the transport layer address of the second base station from the second base station To send a first interface message to the core network.

This embodiment also provides a method for sending an address running in the foregoing network architecture, which is applied to a second base station. FIG. 4 is a flowchart of a method for obtaining an address according to an embodiment of the present invention. As shown in FIG. 4, The process includes the following steps:

Step S402: Send a first interface message to the proxy base station, where the first interface message carries the transport layer address of the second base station, and the first interface message is used to instruct the proxy base station to send to the first base station connected to the core network or to the first base station connected to the core network. The core network sends a second interface message, where the second interface message carries the transport layer address of the second base station obtained by the proxy base station from the first interface message, the proxy base station is connected to the core network, and the second base station is connected to the proxy base station and No direct connection to the core network.

Optionally, before sending the first interface message to the proxy base station, the method further includes:

Receive a first address request message sent by a proxy base station, where the first address request message is used to request to obtain a transport layer address of a second base station.

This embodiment also provides a method for sending an address running in the foregoing network architecture, which is applied to a second base station. FIG. 5 is a flowchart of a method for obtaining an address according to an embodiment of the present invention. As shown in FIG. The process includes the following steps:

Step S502: Receive a first interface message sent by a proxy base station connected to the core network, where the first interface message carries a transport layer address of the first base station connected to the core network obtained by the proxy base station, and the second base station and The proxy base station is connected and is not directly connected to the core network.

Step S504: Obtain the transport layer address of the first base station carried in the first interface message.

Through the above steps, the problem that the base station node not connected to the core network in the related art cannot obtain the transport layer address information of the base station node connected to the core network is solved. To achieve the effect of improving the connectivity between network elements in the network architecture.

Optionally, the execution subject of the above steps may be a base station.

Optionally, before receiving the first interface message sent by the proxy base station, the method further includes: sending a first address request message to the proxy base station, where the first address request message is used for requesting to obtain a transport layer address of the first base station, where: The first address request message carries the identifier of the first base station. The first address request message is used to instruct the proxy base station to obtain the transport layer address of the first base station from the first base station or to instruct the proxy base station to obtain the first base station through the core network. After sending the transport layer address, send an interface message to the second base station.

This embodiment also provides a method for sending an address running in the foregoing network architecture, which is applied to a proxy base station. FIG. 6 is a flowchart of a method for obtaining an address according to an embodiment of the present invention. As shown in FIG. 6, this process It includes the following steps:

Step S602: Send a first interface message to the second base station, where the first interface message carries the transport layer address of the first base station connected to the core network obtained by the proxy base station, and the second base station is connected to the proxy base station and connected to the core. The network is not directly connected.

Optionally, before sending the first interface message to the second base station, the method further includes: receiving a second interface message sent by the first base station or sent by the core network, where the second interface message carries the information of the first base station. The transport layer address, where the transport layer address of the first base station carried in the second interface message sent by the core network is obtained by the core network from the first base station; the first base station carried in the second interface message is obtained Transport-layer address.

Optionally, before receiving the second interface message sent by the first base station or sent by the core network, the method further includes: sending a first address request message to the first base station or sending the first address request message to the core network. For obtaining the transport layer address information of the first base station, wherein the first address request message carries the identifier of the first base station, and the first address request message sent to the first base station is used to instruct the first base station to send the second base station to the proxy base station. An interface message. The first address request message sent to the core network is used to instruct the core network to send a second interface message to the proxy base station.

Optionally, before sending the first interface message to the second base station, the method further includes: receiving a first address request message sent by the second base station, where the first address request message is used to request to obtain a transport layer address of the first base station The first address request message carries the identifier of the first base station.

This embodiment also provides a method for sending an address running in the foregoing network architecture, which is applied to a first base station. FIG. 7 is a flowchart of a method for obtaining an address according to an embodiment of the present invention. As shown in FIG. The process includes the following steps:

Step S702: Send a first interface message to the core network or to a proxy base station connected to the core network. The first interface message carries a transport layer address of the first base station, and the first interface message sent to the core network is used for The core network is instructed to send the second interface message carrying the transport layer address of the first base station obtained by the core network to the proxy base station, and the first interface message sent to the proxy base station is used to instruct the proxy base station to send the second base station with the proxy base station. In the obtained third interface message of the transport layer address of the first base station, the second base station is connected to the proxy base station and is not directly connected to the core network.

Optionally, before sending the first interface message to the core network or to the proxy base station connected to the core network, the method further includes: receiving a first address request sent by the core network or sent by the proxy base station, wherein the first The address request is used to obtain a transport layer address of the first base station, and the first address request is used to instruct the first base station to send a first interface message to the proxy base station or to instruct the first base station to send a first interface message to the core network.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary universal hardware platform, and of course, also by hardware, but in many cases the former is Better implementation. Based on such an understanding, the technical solution of this application that is essentially or contributes to related technologies can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (Read-Only Memory) , ROM) / Random Access Memory (RAM), magnetic disks, compact discs, including a number of instructions to enable a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the present invention Methods of various embodiments.

Example 2

A first base station is provided in this embodiment, and FIG. 8 is a schematic structural diagram of a first base station according to an embodiment of the present invention. As shown in FIG. 8, the structure includes a receiving module 81 for receiving a signal from a core network. The interface message sent by the connected proxy base station or sent by the core network, where the interface message carries the transport layer address of the second base station obtained by the proxy base station or obtained by the core network, and the second base station is connected to the proxy base station And there is no direct connection with the core network; the obtaining module 83 is configured to obtain the transport layer address of the second base station carried in the interface message.

With the above structure, the problem that the base station node connected to the core network cannot obtain the transport layer address information of the base station node not connected to the core network in the related art is solved. To achieve the effect of improving the connectivity between network elements in the network architecture.

Optionally, the receiving module 81 includes at least one of the following: a first receiving submodule, configured to receive an interface message sent by the core network when the transport layer address of the second base station is stored on the core network, where the transport layer address is Sent by the second base station to the core network through the proxy base station; the second receiving submodule is configured to receive the interface message sent by the proxy base station when the transport layer address of the second base station is stored on the proxy base station, where the transport layer address is Passed by the second base station to the proxy base station; a third receiving sub-module is configured to receive the second base station sent by the proxy base station connected to the core network or through the second base station when the transport layer address of the second base station is stored on the second base station; Interface messages sent by the core network.

Optionally, the first base station further includes: a sending module, the sending module includes at least one of the following: a first sending submodule, configured to receive an interface sent by the core network when the transport layer address of the second base station is stored on the core network; Before the message, an address request message is sent to the core network. The address request message is used to request to obtain the transport layer address of the second base station, where the address request message carries the identity of the second base station; the second sending submodule is used to be the first When the transport layer address of the second base station is stored on the proxy base station, before receiving the interface message sent by the proxy base station, the address request message is sent to the proxy base station. The address request message is used to request to obtain the transport layer address of the second base station, where the address request The message carries the identity of the second base station; a third sending sub-module is used to receive the second base station's sending or Send the address to the proxy base station or core network before the interface message sent by the core network. The address request message is used to request The message of taking the transport layer address of the second base station, wherein the address request message carries the identifier of the second base station, and the address request message is used to instruct the proxy base station to obtain the transport layer address of the second base station from the second base station or to instruct the core network. Obtain the transport layer address of the second base station from the second base station through the proxy base station.

Optionally, the first base station further includes: an identity receiving module, configured to receive the identity of the agent base station, the identity of the second base station connected to the agent base station, and the second before sending the address request message to the agent base station. Correspondence between the base station and the proxy base station or receiving the identity of the proxy base station sent by the proxy base station, the identity of the second base station connected to the proxy base station, the correspondence between the second base station and the proxy base station, and the storage state of the transport layer address of the second base station The storage status is used to indicate whether the proxy base station stores a transport layer address of the second base station.

In this embodiment, a proxy base station is also provided. FIG. 9 is a schematic structural diagram of a first base station according to an embodiment of the present invention. As shown in FIG. 9, the structure includes a sending module 91 for connecting to a core network. The first base station sends or sends the first interface message to the core network, where the first interface message carries the transport layer address of the second base station obtained by the proxy base station, and sends the first interface message to the core network to indicate the core network Send a second interface message to the first base station. The second interface message carries the transport layer address of the second base station obtained by the core network from the first interface message. The second base station is connected to the proxy base station and has no direct connection to the core network.

Optionally, the proxy base station further includes: a receiving module, configured to receive the third interface message sent by the second base station before sending to the first base station connected to the core network or sending the first interface message to the core network; an obtaining module, It is used to obtain the transport layer address of the second base station carried in the third interface message.

Optionally, the proxy base station further includes: a request sending module, configured to send a first address request message to the second base station before receiving the third interface message sent by the second base station, where the first address request message is used to request acquisition The transport layer address of the second base station.

Optionally, the proxy base station further includes: a request receiving module, configured to receive, before sending the first interface message to the first base station connected to the core network or to the core network, the first base station or the core network. A second address request message, the second address request message is used to request to obtain a transport layer address of the second base station, where the second address request message carries an identifier of the second base station, and the second address request sent by the core network The identifier of the second base station carried in the message is obtained by the core network from the first base station, and the second address request message is used to indicate at least one of the following: instruct the proxy base station to send a first interface message to the first base station; and instruct the proxy The base station sends a first interface message to the core network; instructs the proxy base station to send the first interface message to the first base station after obtaining the transport layer address of the second base station from the second base station; and instructs the proxy base station to obtain the first interface message from the second base station. After the transmission layer address of the two base stations, the first interface message is sent to the core network.

A second base station is also provided in this embodiment. FIG. 10 is a schematic structural diagram of a first base station according to an embodiment of the present invention. As shown in FIG. 10, the structure includes: a sending module 101 for sending to a proxy base station. A first interface message, where the first interface message carries the transport layer address of the second base station, and the first interface message is used to instruct the proxy base station to send or send the second interface message to the first base station connected to the core network Wherein, the second interface message carries the transport layer address of the second base station obtained by the proxy base station from the first interface message, the proxy base station is connected to the core network, and the second base station is connected to the proxy base station and is not directly connected to the core network.

Optionally, the second base station further includes: a receiving module, configured to receive the first address request message sent by the proxy base station before sending the first interface message to the proxy base station, where the first address request message is used to request to obtain the second The transport layer address of the base station.

A second base station is also provided in this embodiment. FIG. 11 is a schematic structural diagram of a first base station according to an embodiment of the present invention. As shown in FIG. 11, the structure includes: a receiving module 111 for receiving a packet from a core. The first interface message sent by the proxy base station connected to the network, where the first interface message carries the transport layer address of the first base station connected to the core network obtained by the proxy base station, and the second base station is connected to the proxy base station and is connected to the core network. No direct connection; an obtaining module 113 is configured to obtain a transport layer address of a first base station carried in a first interface message.

With the above structure, the problem that the base station node not connected to the core network in the related art cannot obtain the transport layer address information of the base station node connected to the core network is solved. To achieve the effect of improving the connectivity between network elements in the network architecture.

Optionally, the second base station further includes: a request sending module, configured to send a first address request message to the proxy base station before receiving the first interface message sent by the proxy base station, where the first address request message is used to request to obtain the first The transport layer address of the base station, where the first address request message carries the identifier of the first base station, and the first address request message is used to instruct the proxy base station to obtain the transport layer address of the first base station from the first base station or to instruct the proxy After the base station obtains the transport layer address of the first base station through the core network, it sends an interface message to the second base station.

In this embodiment, a proxy base station is also provided. FIG. 12 is a schematic structural diagram of a first base station according to an embodiment of the present invention. As shown in FIG. 12, the structure includes a sending module 121 for sending to a second base station. A first interface message, where the first interface message carries a transport layer address of the first base station connected to the core network obtained by the proxy base station, and the second base station is connected to the proxy base station and has no direct connection to the core network.

Optionally, the proxy base station further includes: a receiving module, configured to receive the second interface message sent by the first base station or sent by the core network before sending the first interface message to the second base station, where the second interface message includes Carrying the transport layer address of the first base station, wherein the transport layer address of the first base station carried in the second interface message sent by the core network is obtained by the core network from the first base station;

The obtaining module is configured to obtain a transport layer address of the first base station carried in the second interface message.

Optionally, the proxy base station further includes: a request sending module, configured to send the first address request message to the first base station or the core network before receiving the second interface message sent by the first base station or the core network. The first address request message is used to obtain the transport layer address information of the first base station, where the first address request message carries the identifier of the first base station, and the first address request message sent to the first base station is used to indicate the first The base station sends a second interface message to the proxy base station, and the first address request message sent to the core network is used to instruct the core network to send the second interface message to the proxy base station.

Optionally, the proxy base station further includes a request receiving module, configured to receive the first address request message sent by the second base station before sending the first interface message to the second base station, where the first address request message is used to request to obtain the first address request message. A transport layer address of a base station, and the first address request message carries an identifier of the first base station.

A first base station is also provided in this embodiment. FIG. 13 is a schematic structural diagram of a first base station according to an embodiment of the present invention. As shown in FIG. 13, the structure includes a sending module 131 for sending to a core network. Or sending a first interface message to the proxy base station connected to the core network, where the first interface message carries the transport layer address of the first base station, wherein the first interface message sent to the core network is used to instruct the core network to send to the proxy base station The second interface message carrying the transport layer address of the first base station obtained by the core network, and the first interface message sent to the proxy base station is used to instruct the proxy base station to send the second base station with the first base station obtained by the proxy base station. The third interface message of the transport layer address, the second base station is connected to the proxy base station and is not directly connected to the core network.

Optionally, the first base station further includes: a receiving module, configured to receive the first interface message sent by the core network or the proxy base station before sending the first interface message to the core network or to the proxy base station connected to the core network. An address request, where the first address request is used to obtain a transmission layer address of the first base station, and the first address request is used to instruct the first base station to send a first interface message to the proxy base station or to instruct the first base station to send a first interface message to the core network. An interface message. It should be noted that, as used above, the term “module” may implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and conceived.

It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to the above: the above modules are located in the same processor; or the above modules are arbitrarily combined The forms are located in different processors.

Embodiment 3 A system is provided in this embodiment, which includes a core network, and further includes a first base station, a proxy base station, and a second base station in the first three embodiments in the foregoing embodiment 2.

Through the structure of the above system, the problem that the base station node connected to the core network cannot obtain the transport layer address information of the base station node not connected to the core network in the related art is solved. To achieve the effect of improving the connectivity between network elements in the network architecture.

This embodiment further provides a system including a core network, and further including a first base station, a proxy base station, and a second base station in the last three embodiments in the foregoing Embodiment 2.

Through the structure of the above system, the problem that the base station node that is not connected to the core network in the related art cannot obtain the transport layer address information of the base station node that is connected to the core network is solved. To achieve the effect of improving the connectivity between network elements in the network architecture.

Example 4

An embodiment of the present invention further provides a storage medium. The storage medium stores a computer program, where the computer program is configured to execute the steps in any one of the method embodiments in Embodiment 1 when running. This will not be repeated here.

Optionally, in this embodiment, the foregoing storage medium may be configured to store a computer program for performing the following steps:

S1. Receive an interface message sent by the proxy base station connected to the core network or sent by the core network, where the interface message carries the transport layer address of the second base station obtained by the proxy base station or the core network, The second base station is connected to the proxy base station and is not directly connected to the core network.

S2. Obtain a transport layer address of the second base station carried in the interface message.

Through the above steps, the problem that the base station node connected to the core network in the related art cannot obtain the transport layer address information of the base station node not connected to the core network is solved. To achieve the effect of improving the connectivity between network elements in the network architecture.

Optionally, in this embodiment, the foregoing storage medium may include, but is not limited to, various media that can store a computer program, such as a U disk, ROM, RAM, mobile hard disk, magnetic disk, or optical disk.

An embodiment of the present application further provides an electronic device including a memory and a processor. The memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the foregoing method embodiments.

Optionally, the electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the processor, and the input-output device is connected to the processor.

Optionally, in this embodiment, the foregoing processor may be configured to execute the following steps by a computer program:

Through the above steps, since the core network or the proxy base station sends the transport layer address information of the second base station node that is not connected to the core network to the base station node connected to the core network, so that the node connected to the core network is located in the core network. The transport layer address information of the connected second base station is established. Therefore, the problem that the base station node connected to the core network in the related art cannot obtain the transport layer address information of the base station node that is not connected to the core network can be solved. To achieve the effect of improving the connectivity between network elements in the network architecture.

Optionally, for specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and optional implementation manners, and details are not described in this embodiment.

The following specific embodiments explain the content of the embodiments of the present invention based on three architectures. It should be noted that, in the following specific embodiments, the second base station node refers to a control plane connection (such as an S1 connection or an S1 connection) to the core network. NG (Next Generation (NG) connection) base stations; proxy base stations refer to base stations with a control plane connection (such as S1 connection or NG connection) to the core network, and the proxy base station is also connected to a second base station; the first base station , Proxy base station, and second base station can be any of gNB, en-gNB, evolved base station node (Evloved NodeB, eNB), or ng-eNB, and is not limited to this, other base stations can also be, without affecting Implementation of this application.

It should be noted that, in the case of no conflict, the methods described in the following specific embodiments for obtaining the TNL address of the second base station according to the first base station can be used to reversely obtain the method for obtaining the TNL address of the first base station by the second base station. The reverse method is also within the protection scope of this application. Except for the part specifically described in this request document, the reverse method is not described in the following specific implementations.

Specific Embodiment One:

The first embodiment describes that the TNL address information of the second base station is stored in the core network, and the core network feeds back the TNL address information of the second base station stored by the second base station to the first base station based on the address request of the first base station. Methods.

FIG. 14 is a schematic diagram of a network structure according to a first embodiment of the present invention. The architecture shown in FIG. 14 is taken as an example to explain the first alternative embodiment of the present invention. As shown in FIG. 14, the architecture of the embodiment of the present invention includes long-term evolution (Long Term Evolution (LTE) core network EPC, first base station eNB2, proxy base station proxy-eNB, and second base station en-gNB. Among them, EPC includes Mobility Management Entity (MME) / Serving Gateway (SGW); eNB2 and proxy eNB can establish S1 connection with EPC respectively; proxy eNB can respectively connect with second base station en-gNB and eNB2 Establish X2 connection.

eNB2 can obtain the transport layer address of en-gNB through the following steps:

Step 1: The second base station (en-gNB) sends its own transport layer address information and the base station identifier to the proxy eNB through an X2 interface message; wherein the second base station's transport layer address information is used in the second An SCTP connection is established between the base station and other base stations.

Step 2: The proxy base station (proxy eNB) receives the transport layer address information of the second base station (en-gNB) and the base station identifier (en-gNB) of the second base station (en-gNB) that it receives and connects to the proxy eNB. en-gNB ID) is sent to the MME through the S1 interface.

Then, eNB2 can obtain the transport layer address information of the second base station (en-gNB) through the address discovery method, and eNB2 can also obtain the second base station identification (en-gNB ID) through the automatic neighbor relationship function (ANR), where the address The discovery method includes the following steps:

Step 1: eNB2 sends a request message to the core network to request the TNL address of the second base station (en-gNB), where the request message carries the identity of the second base station. The request message may be an eNB configuration transmission (CONFIGURATION TRANSFER) message of the S1 interface.

Step 2: The core network MME returns a response message to the eNB2 based on the transport layer address information of the second base station (en-gNB) and the base station identifier stored therein, where the response message includes the TNL address of the en-gNB and the en- gNB's en-gNB ID.

The architecture of the embodiment of the present invention may also be the architecture shown in FIG. 15. As shown in FIG. 15, the architecture of the embodiment of the present invention includes a core network access and mobility management function (AMF) / user plane. Management Function (User Plane Function, UPF), base station gNB1, base station ng-eNB1, proxy base station proxyng-eNB, and second base station gNB, among which base station gNB1, base station ng-eNB1, and proxy base station proxyng-eNB can communicate with the core, respectively. The network establishes an NG connection; the base station ng-eNB1 can establish an XN connection with the base station gNB1 and the proxy base station proxy ng-eNB respectively; the proxy base station proxy ng-eNB can establish an XN connection with the base station gNB1 and the second base station gNB respectively.

The base station gNB1 or the base station ng-eNB1 can obtain the TNL address of the second base station gNB through the following steps:

Step 1: The second base station gNB passes its own transport layer address (TNL address) and the base station identifier to the proxy base station proxyen-gNB through the XN interface message.

Step 2: The proxy base station Proxy ng-eNB sends the gNB ID of the second base station and one or more transport layer addresses of the second base station gNB to the core network through the NG interface message.

Then, the base station gNB1 or the base station ng-eNB1 can obtain the transport layer address information of the second base station (gNB) through the address discovery method, and the base station gNB1 or the base station ng-eNB1 can also obtain the second base station identifier through the automatic neighbor relationship function (ANR). (gNB ID), where the address discovery method includes the following steps:

Step 1: The base station gNB1 or the base station ng-eNB1 sends a request message to the core network to request the TNL address of the second base station gNB, where the request message carries the identity of the second base station.

Step 2: The core network returns a response message to the base station gNB1 or the base station ng-eNB1 based on the transport layer address information of the second base station (en-gNB) and the base station identifier stored therein, where the response message includes the TNL address of the second base station And the base station identification of the second base station.

The architecture of the embodiment of the present invention may also be the architecture shown in FIG. 16. As shown in FIG. 16, the architecture of the embodiment of the present invention includes a core network AMF / UPF, a base station gNB1, a base station ng-eNB1, a proxy base station proxy gNB, Two base stations ng-eNB.

Among them, base station gNB1, base station ng-eNB1, and proxy base station proxy gNB can establish NG connections with the core network respectively; base station ng-eNB1 can establish XN connections with base station gNB1, proxy base station proxy gNB, and proxy base station gNB can be connected to base stations gNB1 and The second base station ng-eNB establishes an XN connection.

The base station gNB1 or the base station ng-eNB1 can obtain the TNL address of the second base station ng-eNB through the following steps:

Step 1: The second base station ng-eNB passes its own transport layer address (TNL address) and base station identity to the proxy base station proxy gNB through the XN interface message.

Step 2: The proxy base station proxy NB sends the ng-eNB ID of the second base station and one or more transport layer addresses of the second base station ng-eNB to the core network through the NG interface message.

Then, the base station gNB1 or the base station ng-eNB1 can obtain the transport layer address information of the second base station (ng-eNB) through the address discovery method. The base station gNB1 or the base station ng-eNB1 can also obtain the second base station through the automatic neighbor relationship function (ANR) Base station identification (ng-eNB ID), where the address discovery method includes the following steps:

Step 1: The base station gNB1 or the base station ng-eNB1 sends a request message to the core network to request the TNL address of the second base station ng-eNB. The request message carries the identifier of the second base station, and the request message may be an NG interface message.

Step 2: The core network returns a response message to the base station gNB1 or the base station ng-eNB1 based on the transport layer address information of the second base station (en-gNB) and the base station identifier stored therein, where the response message includes the TNL address of the second base station And the base station identifier of the second base station, the response message may be an NG interface message.

It should be noted that, in a specific implementation manner, the method for transmitting the transport layer address (TNL address) and / or the base station identifier of the second base station to the proxy base station may be that the second base station actively sends to the proxy base station to carry its own TNL address. The interface message identified with itself may also be that the proxy base station requests these contents from the second base station through the interface message, and then the second base station feeds back to the proxy base station through the interface message. In addition, in the first specific embodiment, the proxy base station itself may save the TNL address information and the base station identifier of the second base station it receives, or may not store it.

Specific implementation mode two:

In addition to the address discovery method described in the first specific embodiment, the address discovery method may also be implemented in the following manner: That is, the second base station in the first specific embodiment transmits its own transport layer address (TNL address) to the proxy base station. After that, the proxy base station directly sends the transport layer address and the base station identifier of the second base station to other base stations.

Specifically, taking the architecture shown in FIG. 14 as an example, the address discovery method may be:

Step 1: The proxy base station sends the TNL address information of the second base station connected to the proxy base station and the base station identifier of the second base station to the eNB2 through an X2 interface message.

Through this step 1, other base stations, namely eNB2 in FIG. 14, can obtain the TNL address information of the second base station.

It should be noted that the above address discovery function enables some or all of the base stations that can establish a connection with the proxy base station to passively obtain the TNL address information of the second base station and the base station identifier of the second base station, and even passively obtain the The TNL address information and base station identifiers of all the second base stations to which the proxy base station is connected. As to whether the base station will use these information and identifiers to establish a connection with the second base station, this embodiment is not limited, and the base station can use these information and the second base station immediately. The base station establishes the SCTP connection, and it can also be used when there is a connection demand.

In addition to the manner in which the TNL address and the base station identifier of the second base station are stored in the above proxy base station, the proxy base station actively sends the TNL address information and the base station identifier of the second base station to the first base station, and the first base station may also use the first base station directly to the proxy. The base station sends a request message to obtain the TNL address information of the second base station. However, this method requires that the first base station first needs to determine whether the target base station (second base station) with which it wants to establish an SCTP connection is registered on the proxy base station. That is, the target base station for sending the request needs to be determined first, and specifically includes the following steps:

Step 1: The proxy base station sends the base station identifier of the second base station connected to the proxy base station to other base stations connected to the proxy base station. The other base stations include the first base station.

Step 2: After receiving the identity of the second base station, the first base station can determine whether the target base station (second base station) with which it wants to establish an SCTP connection is registered on the proxy base station or on which proxy base station. After determining the target proxy base station to send the request, the first base station may send a first request message to the target proxy base station to request the TNL address of the second base station, where the first request message carries its own first base station identifier and the second base station. Base station identification.

Step 3: After the proxy base station receives the first request message, if the proxy base station itself saves the TNL address information of the second base station corresponding to the second base station identifier carried in the first request message, the TNL address information The first response message is sent to the first base station corresponding to the first base station identifier carried in the first request message.

If the TNL address information of the second base station is not stored in the proxy base station, the proxy base station determines the second base station corresponding to the second base station identifier by using the second base station identifier carried in the first request, and sends the first base station to the second base station. Two request messages request the TNL address of the second base station, where the second request message carries at least the first base station identifier and may also carry the base station identifier of the second base station.

Step 4: After receiving the second request message, the second base station sends a second response message to the proxy base station, where the second response message carries the first base station identifier, the second base station identifier, and one or more of the second base station. TNL address.

Step 5: After receiving the second response message, the proxy base station sends a third response message to the first base station corresponding to the first base station identifier according to the first base station identifier carried in the second response message. Carry at least the second base station identifier and one or more TNL addresses of the second base station.

It should be noted that, in addition to the above steps, the first base station may obtain the TNL address information of the second base station by sending a request message to the proxy base station in the following manner:

Step 1: The proxy base station sends the base station identifier of the second base station to which it is connected and the TNL address storage status of the second base station to other base stations to which it is connected. The other base stations include the first base station; where the address storage status can indicate Whether the TNL address of a second base station connected to the base station is stored on the proxy base station.

Step 2: After the first base station receives the second base station identifier and the TNL address storage status, it can determine whether the target base station (second base station) with which the first base station wants to establish an SCTP connection is registered on the proxy base station and whether Whether the proxy base station stores the TNL address information of the second base station. If the second base station is registered on the proxy base station and the TNL address is also stored on the proxy base station, the first base station may send a first request message to the proxy base station, requesting The TNL address of the second base station, where the first request message carries the base station identifier of the second base station and the base station identifier of the first base station.

Step 3: When the proxy base station receives the first request message, it sends the TNL address of the second base station corresponding to the second base station identifier carried in the first request message to the first request in the form of a first response message. The first base station corresponding to the first base station identifier carried in the message.

In this way, the first base station can know whether the target base station (second base station) that it wants to establish the SCTP connection is registered on the proxy base station, and can also know whether the TNL address of the second base station is stored on the proxy base station.

It should be noted that the above-mentioned first request message, second request message, first response message, second response message, and third response message may be X2 interface messages.

In addition, taking FIG. 15 and FIG. 16 as examples, in the network architecture shown in FIG. 15 and FIG. 16, the first base station gNB1 or the first base station ng-eNB1 obtains the TNL address of the second base station gNB or ng-eNB through the proxy base station. The method of information is basically the same as the above method, and will not be repeated here. It should be noted that in these two architectures, the message formats of sending messages, request messages, and response messages are different from the above message formats, and the two architectures use XN interface messages.

Specific example mode three

The third embodiment describes the method for the base station to obtain the TNL address of the second base station. The difference between the third embodiment and the first embodiment and the second embodiment is mainly that in the third embodiment, the proxy base station and the core network None of the TNL address information of the second base station is stored, and the TNL address information of the second base station is still stored on the second base station.

Taking the architecture shown in FIG. 14 as an example, the method for the base station to obtain the TNL address information of the second base station is:

Step 1: The proxy eNB obtains the base station identifier of the second base station (en-gNB) through the X2 interface.

Step 2: The proxy eNB sends the correspondence between its own base station identification and the base station identification of the second base station (en-gNB) to which it is connected to the core network MME through the S1 interface.

Through the steps 1 and 2, the proxy base station obtains the base station identifier of the second base station connected to itself, and the core network obtains the base station identifier of the proxy base station connected to the core network, and all the first base stations connected to the proxy base station. The base station identifier of the second base station and the corresponding relationship between the proxy base station and the second base station.

Then, other base stations can obtain the TNL address information of the second base station through the address discovery method. Other base stations may also obtain a second base station identification (en-gNB ID) through an automatic neighbor cell relationship (ANR).

It should be noted that the address discovery method described in the third embodiment is different from the methods in the first embodiment and the second embodiment. The address discovery method in the third embodiment is as follows:

Step 1: The first base station (eNB 2) sends a first request message to the core network to request the TNL address of the second base station en-gNB, where the first request message carries the base station identifier of the first base station eNB2 and the second base station's Identification and request content (TNL address request), and can also carry the transport layer address information of the first base station eNB2 used to establish the SCTP connection; the request message may be an S1 interface message, such as an eNB CONFIGURATION TRANSFER message of the S1 interface.

Step 2: After receiving the first request message, the core network sends a second request message to the proxy base station. The second request message also includes the base station identifier of the first base station eNB2 and the second base station carried in the request message. And the content of the request.

In this step, the core network reads the identifier of the second base station carried in the request message, and connects the second base station identifier with the base station identifier of the proxy base station that it has stored with itself, and connects with the proxy base station. All the base station identifiers of the second base stations and the correspondence between the proxy base station and the second base station are matched, and the second base station is registered in the proxy base station proxy eNB by addressing, so the sending destination of the requested content is determined. The second request message may be an S1 interface message, such as a MME CONFIGURATION TRANSFER message.

Step 3: After receiving the second request message, the proxy base station sends the base station identifier of the first base station eNB2, the identity of the second base station, and the request content carried in the second request message to the second base station en through the third request message. -gNB. The third request message may be an X2 interface message or other message forms;

In this step, the proxy base station Proxy eNB determines that the base station identification is not the proxy base station identification by checking the base station identification in the target address included in the second request message, and associates the base station identification with itself and all connected with itself. The base station identifier of the second base station is matched, and it is determined that the sending target of the third request message is the second base station en-gNB.

Step 4: The second base station en NB receives the third request message and returns a first response message to the proxy base station proxy eNB; wherein the first response message includes the second base station corresponding to the request content in the third request message The ID and one or more TNL addresses of the second base station used to establish the SCTP connection, and the target address of the first response message also includes the first base station identifier eNB2 ID carried in the third request message. The first response message may be an X2 interface message or other message form.

Step 5: After receiving the first response message, the proxy base station sends the content carried in the first response message to the core network MME in the form of a second response message. The second response message includes the first base station identifier, the second base station ID corresponding to the request content in the third request message, and one or more second base station TNL addresses for establishing an SCTP connection. The second response message may be an S1 interface message or other message format, for example, it may be an eNB CONFIGURATION TRANSFER message of the S1 interface.

Step 6: The core network MME sends the content of the second response message it receives to the eNB 2 in the form of a third response message, where the third response message includes the TNL address of the second base station en-gNB and the second The identity of the base station en-gNB.

Through the above steps, the first base station can obtain the TNL address information of the second base station, so that it can establish an SCTP connection with it.

Taking FIG. 15 and FIG. 16 as examples, in the network architecture shown in FIG. 15 and FIG. 16, the first base station gNB1 or the first base station ng-eNB1 obtains the TNL of the second base station gNB or ng-eNB through the core network and the proxy base station. The method of the address information is basically the same as the above method, and is not repeated here. It should be noted that, in these two architectures, the message formats of each request message, forward message, and response message are different from the above message formats. In this embodiment, an NG interface message or an XN interface message format is adopted.

Specific Embodiment 4

This specific implementation manner 4 is different from the above three specific implementation manners. The foregoing three specific implementation manners describe the process in which the first base station obtains the TNL address information of the second base station, and this specific implementation manner 4 describes the second implementation manner. A process in which the base station obtains TNL address information of the first base station. It should be noted that, for consistency of the descriptions before and after, in the fourth specific implementation manner, the base station names of the foregoing three specific implementation manners are still continued. In addition, it should be noted that in the fourth specific embodiment, the TNL address information of the base station is stored in the base station itself.

Taking the architecture shown in FIG. 14 as an example, the fourth embodiment adopts the same steps as the third embodiment, so that the proxy base station obtains the base station identity of the second base station connected to itself, and the core network obtains the base station identity from the core. The base station identifiers of the proxy base stations connected to the network, the base station identifiers of all the second base stations connected to the proxy base station, and the corresponding relationships between the proxy base stations and the second base stations are not described in detail.

Then, the second base station may obtain the TNL address information of the first base station through an address discovery method. The second base station may also obtain the first base station identification (eNB2 ID) through the automatic neighbor cell relationship function (ANR).

The address discovery method in the fourth embodiment includes:

Step 1: The second base station en NB sends a first request message to the proxy base station proxy eNB to request the TNL address of the first base station eNB 2. The first request message carries the identity of the first base station eNB2 and the identity of the second base station en NB. . It may also carry the transport layer address information of the second base station enNB for establishing the SCTP connection; the first request message may be an X2 interface message or other message form;

Step 2: The proxy eNB sends a second request message to the core MME based on the first request message it receives to request the TNL address information of the first base station, where the second request message includes the first base station identifier and the second base station. en gNB logo.

When the proxy base station Proxy eNB detects that the target base station identifier in the first request message is not its own base station identifier, the proxy base station sends a second request message to the core network MME to request the address information of the first base station.

The second request message may be an S1 interface message or other forms of messages. For example, the second request message may be an eNB CONFIGURATION TRANSFER message of the S1 interface,

Step 3: After receiving the second request message, the core network MME sends a third request message to the eNB 2 based on the second request message. The third request message includes the first base station identifier eNB2 and the second base station identifier en-gNB ID. .

Step 4: After receiving the third request message, the first base station eNB2 returns a first response message to the core network MME according to the request content (requesting the TNL address of the first base station) in the third request message; It includes the first base station eNB2 ID and one or more TNL address information of the first base station for establishing an SCTP connection, and the target address in the first response message includes the second base station identifier enNBNB ID. The first response message may be an S1 interface message or another form of message, for example, it may be an eNB CONFIGURATION TRANSFER message of an S1 interface message;

Step 5: After receiving the first response message, the core network MME sends a second response message to the proxy base station proxy eNB based on the first response message. The second response message also includes the first base station in the first response message. eNB2 ID, one or more TNL address information of the first base station for establishing an SCTP connection, and a second base station identifier;

In this step, the core network MME reads the identifier of the second base station carried in the first response message, and uses the second base station identifier with the base station identifier of the proxy base station stored by itself and connected to the core network, and the proxy base station. The base station identities of all connected second base stations and the correspondence between the proxy base station and the second base station are matched, and the second base station is addressed to be registered on the proxy base station proxy eNB, so it is determined to send a second response message to the proxy base station proxy eNB.

The second response message may be an S1 interface message or other forms of messages, for example, it may be an MME CONFIGURATION TRANSFER message of the S1 interface.

Step 6: After receiving the second response message, the proxy eNB sends a third response message to the second base station en-gNB based on the second response message. The third response message also includes the second response message. The first base station eNB2 ID, one or more TNL address information of the first base station for establishing an SCTP connection, and the second base station identifier.

In this step, when the proxy base station Proxy eNB determines that the base station identifier in the target address in the second response message is not its own base station identifier, the base station identifier in the target address and the base station identifier of the second base station to which it is connected Matching is performed to determine that the sending destination of the third response message is the second base station.

Through the above steps, the second base station can obtain the TNL address information of the first base station, so that it can establish an SCTP connection with it.

In addition, optionally, taking FIG. 15 and FIG. 16 as examples, in the network architecture shown in FIG. 15 and FIG. 16, the second base station gNB or ng-eNB obtains the first base station gNB1 or the first base station through the proxy base station and the core network. The method of the TNL address information of the base station ng-eNB1 is basically the same as the above method, and details are not described herein again. It should be noted that in these two architectures, the message formats of each request message and response message are different from the above message formats. In this embodiment, NG interface messages or XN interface messages are used.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The fifth embodiment also describes the process in which the second base station acquires the TNL address information of the first base station. In the fifth embodiment, the TNL address information of the base station is stored in the base station itself. The fifth embodiment differs from the fourth embodiment. First, it:

Step 2: The proxy eNB sends the correspondence between its own base station identifier and the base station identifier of the second base station (en-gNB) to which it is connected to the first base station eNB2 through the S1 interface.

Through the steps 1 and 2, the proxy base station obtains the base station identifier of the second base station connected to itself, and the first base station obtains the base station identifier of the proxy base station connected to the core network, and all the first base stations connected to the proxy base station. The base station identifier of the second base station and the corresponding relationship between the proxy base station and the second base station.

Then, the second base station may obtain the TNL address information of the first base station through an address discovery method. The second base station may also obtain the first base station identification (eNB2 ID) through the automatic neighbor cell relationship function (ANR). The address discovery method in Embodiment 5 includes:

Step 1: The second base station en NB sends a first request message to the proxy base station proxy eNB to request the TNL address of the first base station eNB 2. The first request message carries the identity of the first base station eNB 2 and the identity of the second base station en NB. It may also carry the transport layer address information of the second base station enNBN used to establish the SCTP connection; the first request message may be an X2 interface message.

Step 2: The proxy eNB sends a second request message to the first base station eNB2 based on the first request message it receives. The second request message carries the identifier of the first base station eNB2 and the identifier of the second base station enNBN. The second request message may be an X2 interface message.

Step 3: After the first base station eNB 2 receives the second request message, it returns a first response message to the proxy base station proxy eNB, where the first response message carries the first base station eNB2 ID and one or more TNLs of the first base station. The address and the en-gNB ID of the second base station; the first response message may be an X2 interface message.

In this step, because the first base station itself stores the base station identifiers of the proxy base stations connected to the core network, the base station identifiers of all the second base stations connected to the proxy base station, and the corresponding relationship between the proxy base stations and the second base station, The first base station may match the identity of the second base station in the second request message with the corresponding relationship saved by itself to obtain the receiving target (agent base station) of the first response message;

Step 4: The proxy eNB sends a second response message to the second base station en-gNB based on the received first response message. The second response message carries the first base station eNB2 ID and one or more of the first base station. TNL address information and a second base station identifier for establishing an SCTP connection; the second response message may be an X2 interface message;

Optionally, taking FIG. 15 and FIG. 16 as examples, in the network architecture shown in FIG. 15 and FIG. 16, the second base station gNB or ng-eNB obtains the first base station gNB1 or the first base station ng through the proxy base station and the core network. -The method of the TNL address information of the eNB1 is basically the same as the above method, and is not repeated here. It should be noted that, in these two architectures, the message formats of each request message and response message are different from the above message formats. In this embodiment, NG interface messages or XN interface messages are used.

It should be noted that when the second base station sends the first request message to the proxy base station, it is necessary to determine that the first base station is connected to the proxy base station. The determining method may be that the proxy base station sends the base station identifier of the second base station to which it is connected to other base stations to which it is connected, which also includes the first base station. Then, the first base station may determine the first base station according to the received information. The second base station is connected to the proxy base station.

It should be noted that the above specific implementations generally include the following two methods:

1. The target base station (the first base station or the second base station) does not send its own TNL address information to other subjects (the proxy base station and the core network). The TNL address information of the target base station can be obtained through a request message or a response message. Obtaining the TNL address of the target base station between the first base station and the second base station through the proxy base station and the core network or only through the proxy base station;

2. The target base station (second base station) sends its own TNL address to the proxy base station or the core network via the proxy base station, and then the proxy base station can send the address information to the demand base station or the demand base station requests the core network or the proxy base station. The address information.

It should be noted that, in an optional implementation manner, when the first base station requests the TNL address of the second base station from other subjects by sending a request message, the request message may also carry the transport layer address of the first base station itself. In this way, the TNL address information can be transmitted to the second base station following the request message. In this way, the second base station obtains the TNL address information of the first base station. Conversely, when the second base station wants to request the TNL address of the first base station from other subjects by sending a request message, it can also carry its own TNL address information in the request message, and the TNL address information will be passed along the request message. To the first base station, the first base station obtains the TNL address of the second base station.

In addition, it should be noted that in the specific embodiments of the present application, the X2 interface message may be an X2 interface setup message, a base station update message, or a custom X2 interface message format, but regardless of the message format or form, this The X2 interface messages in the embodiment must all be able to carry the transport layer address information and / or the base station identification and / or address storage status of the second base station; similarly, the XN interface message may be an XN interface setup message, a base station update message, or a custom XN interface message format, but regardless of the message format or form, the XN interface message in this embodiment must be able to carry the transport layer address information and / or base station identification and / or address storage status of the second base station; S1 The interface message may be an S1 interface setup message, a base station update message, or a custom S1 interface message format, but regardless of the message format or form, the S1 interface message must be able to carry the transport layer address information of the second base station and / or The base station identifier is the base station identifier of the second base station. Similarly, the NG interface message may be an NG interface setup message. The base station configuration update message or a customized NG interface message format, but no matter what the message format or format is, the NG interface message must be able to carry the base station identity of the second base station and / or the base station identity of one or more transport layers of the base station. Address information.

In summary, the various messages in the embodiments of the present invention need to meet the necessary conditions for implementing the specific implementation, that is, they can carry various information in the method of the embodiment.

In addition, it should be noted that in the embodiments of the present application, whether it is a request message, a response message, or an interface message, the base station identifier and / or the TNL address information of the base station may be one or more, a set, or Multiple sets can be carried in the form of custom fields in the message, or they can be distinguished by using custom fields, numbers, or special identifiers.

Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present application may be implemented by a general-purpose computing device, and they may be concentrated on a single computing device or distributed in a network composed of multiple computing devices. Above, optionally, they may be implemented with program code executable by a computing device, so that they may be stored in a storage device and executed by the computing device, and in some cases, may be in a different order than here The steps shown or described are performed either by making them into individual integrated circuit modules or by making multiple modules or steps into a single integrated circuit module. As such, this application is not limited to any particular combination of hardware and software.

The above description is only a preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, this application may have various modifications and changes. Any modification, equivalent replacement, or improvement made within the principles of this application shall be included in the protection scope of this application.

Claims

A method for obtaining an address, which is applied to a first base station connected to a core network, includes:

Receiving an interface message sent by an agent base station connected to the core network or sent by the core network, wherein the interface message carries a transport layer address of a second base station, and the second base station and the agent The base station is connected and has no direct connection with the core network;

Acquiring a transport layer address of the second base station carried in the interface message.
The method according to claim 1, wherein the receiving an interface message sent by a proxy base station connected to the core network or sent by the core network comprises at least one of the following:

Receiving the interface message sent by the core network when the transport layer address of the second base station is stored on the core network, wherein the transport layer address is sent by the second base station through the proxy base station To the core network;

Receiving the interface message sent by the proxy base station when the transport layer address of the second base station is stored on the proxy base station, wherein the transport layer address is passed by the second base station to the proxy Base station

And when the transport layer address of the second base station is stored on the second base station, receiving the second base station sends the second base station through a proxy base station connected to the core network or sends the second base station through the core network. Interface messages.
The method according to claim 2, further comprising at least one of the following:

When the transport layer address of the second base station is stored on the core network, before receiving the interface message sent by the core network, an address request message is sent to the core network. The address request message is used for Requesting to obtain a transport layer address of the second base station, wherein the address request message carries an identifier of the second base station;

In the case where the transport layer address of the second base station is stored on the proxy base station, before receiving the interface message sent by the proxy base station, sending an address request message to the proxy base station, the address request message For requesting to obtain a transport layer address of the second base station, wherein the address request message carries an identifier of the second base station;

In the case where the transport layer address of the second base station is stored on the second base station, the receiving is sent by the second base station through a proxy base station connected to the core network or through the core network. Before sending an interface message to the proxy base station or the core network, the address request message is used to request to obtain a transport layer address of the second base station, where the address request message carries all The identifier of the second base station, and the address request message is used to instruct the proxy base station to obtain the transport layer address of the second base station from the second base station or to instruct the core network to obtain the second base station from the proxy base station through the proxy base station The second base station obtains a transport layer address of the second base station.
The method according to claim 3, before the sending the address request message to the proxy base station, further comprising: receiving an identity of the proxy base station sent by the proxy base station, and the second The identity of the base station and the correspondence between the second base station and the proxy base station or the identity of the proxy base station that received the proxy base station, the identity of the second base station connected to the proxy base station, the second base station The correspondence between the base station and the proxy base station and the storage state of the transport layer address of the second base station, wherein the storage state is used to indicate whether the transport base address of the second base station is stored on the proxy base station.
An address sending method applied to a proxy base station connected to a core network includes:

Sending or sending a first interface message to a first base station connected to the core network, where the first interface message carries a transport layer address of a second base station and is sent to the core network The first interface message is used to instruct the core network to send a second interface message to the first base station, where the second interface message carries the second network interface message obtained by the core network from the first interface message. A transport layer address of a second base station, where the second base station is connected to the proxy base station and has no direct connection to the core network.
The method according to claim 5, before the sending or sending the first interface message to the first base station connected to the core network, further comprising:

Receiving a third interface message sent by the second base station;

Acquiring a transport layer address of the second base station carried in the third interface message.
The method according to claim 6, before the receiving the third interface message sent by the second base station, further comprising:

Send a first address request message to the second base station, where the first address request message is used to request to obtain a transport layer address of the second base station.
The method according to claim 5, before the sending or sending the first interface message to the first base station connected to the core network, further comprising:

Receiving a second address request message sent by the first base station or sent by the core network, where the second address request message is used to request to obtain a transport layer address of the second base station, where the second The address request message carries the identifier of the second base station, and the identifier of the second base station carried in the second address request message sent by the core network is that the core network sends the identifier from the first And obtained at a base station, the second address request message is used to indicate at least one of the following:

Instruct the proxy base station to send the first interface message to the first base station;

Instruct the proxy base station to send the first interface message to the core network;

Instruct the proxy base station to send the first interface message to the first base station after obtaining the transport layer address of the second base station from the second base station;

Instruct the proxy base station to send the first interface message to the core network after obtaining the transport layer address of the second base station from the second base station.
An address sending method applied to a second base station includes:

Sending a first interface message to the proxy base station, where the first interface message carries a transport layer address of the second base station, and the first interface message is used to instruct the proxy base station to connect to the first A base station sends or sends a second interface message to the core network, wherein the second interface message carries a transport layer address of the second base station obtained by the proxy base station from the first interface message, The proxy base station is connected to the core network, and the second base station is connected to the proxy base station and is not directly connected to the core network.
The method according to claim 9, before the sending the first interface message to the proxy base station, further comprising:

Receiving a first address request message sent by the proxy base station, where the first address request message is used to request to obtain a transport layer address of the second base station.
A method for obtaining an address, which is applied to a second base station and includes:

Receiving a first interface message sent by a proxy base station connected to a core network, where the first interface message carries a transport layer address of a first base station connected to the core network, and the second base station and the The proxy base station is connected and is not directly connected to the core network;

Acquiring a transport layer address of the first base station carried in the first interface message.
The method according to claim 11, before the receiving the first interface message sent by the proxy base station, further comprising:

Send a first address request message to the proxy base station, where the first address request message is used to request to obtain a transport layer address of the first base station, wherein the first address request message carries the first base station Identifier, the first address request message is used to instruct the proxy base station to obtain the transport layer address of the first base station from the first base station or to instruct the proxy base station to obtain the first base station through the core network. After the transport layer address of the first base station, send the first interface message to the second base station.
An address sending method applied to a proxy base station connected to a core network includes:

Sending a first interface message to a second base station, where the first interface message carries a transport layer address of the first base station connected to the core network, and the second base station is connected to the proxy base station and The core network is not directly connected.
The method according to claim 13, before the sending the first interface message to the second base station, further comprising:

Receiving a second interface message sent by the first base station or sent by the core network, where the second interface message carries a transport layer address of the first base station, and The transport layer address of the first base station carried in the sent second interface message is obtained by the core network from the first base station;

Acquiring the transport layer address of the first base station carried in the second interface message.
The method according to claim 14, before the receiving the second interface message sent by the first base station or sent by the core network, further comprising:

Send a first address request message to the first base station or to the core network, where the first address request message is used to obtain transport layer address information of the first base station, wherein the first address request message Carrying the identifier of the first base station, the first address request message sent to the first base station is used to instruct the first base station to send a second interface message to the proxy base station and to the core network The first address request message sent is used to instruct the core network to send the second interface message to the proxy base station.
The method according to claim 13, before the sending the first interface message to the second base station, further comprising:

Receiving a first address request message sent by the second base station, where the first address request message is used to request to obtain a transport layer address of the first base station, and the first address request message carries the first address request message The identity of a base station.
An address sending method applied to a first base station connected to a core network includes:

Sending a first interface message to the core network or to a proxy base station connected to the core network, where the first interface message carries a transport layer address of the first base station, and sending to the core network The first interface message is used to instruct the core network to send the second interface message carrying the transport layer address of the first base station obtained by the core network to the proxy base station, and send the second interface message to the proxy base station. The first interface message is used to instruct the proxy base station to send a third interface message to the second base station that carries the transport layer address of the first base station obtained by the proxy base station, and the second base station and the proxy The base station is connected and has no direct connection with the core network.
The method according to claim 17, before the sending the first interface message to the core network or to the proxy base station connected to the core network, further comprising:

Receiving a first address request sent by the core network or sent by the proxy base station, wherein the first address request is used to obtain a transport layer address of the first base station, and the first address request is used for Instruct the first base station to send the first interface message to the proxy base station or to instruct the first base station to send the first interface message to the core network.
A first base station, where the first base station is connected to a core network and includes:

The receiving module is configured to receive an interface message sent by the proxy base station connected to the core network or sent by the core network, wherein the interface message carries a transport layer address of a second base station, and the second A base station is connected to the proxy base station and is not directly connected to the core network;

The obtaining module is configured to obtain a transport layer address of the second base station carried in the interface message.
A proxy base station, which is connected to a core network and includes:

The sending module is configured to send or send a first interface message to the first base station connected to the core network, where the first interface message carries a transport layer address of the second base station and sends the The first interface message sent by the core network is used to instruct the core network to send a second interface message to the first base station, and the second interface message carries the core network message from the first interface The transport layer address of the second base station obtained in the second base station is connected to the proxy base station and has no direct connection to the core network.
A second base station includes:

The sending module is configured to send a first interface message to the proxy base station, wherein the first interface message carries a transport layer address of the second base station, and the first interface message is used to instruct the proxy base station to send a message to the proxy base station. The first base station connected to the core network sends or sends a second interface message to the core network, wherein the second interface message carries the second base station obtained by the proxy base station from the first interface message. The proxy base station is connected to the core network, the second base station is connected to the proxy base station and is not directly connected to the core network.
A second base station includes:

The receiving module is configured to receive a first interface message sent by a proxy base station connected to a core network, where the first interface message carries a transport layer address of a first base station connected to the core network, and the first Two base stations are connected to the proxy base station and are not directly connected to the core network;

The obtaining module is configured to obtain a transport layer address of the first base station carried in the first interface message.
A proxy base station, which is connected to a core network and includes:

The sending module is configured to send a first interface message to a second base station, where the first interface message carries a transport layer address of the first base station connected to the core network, and the second base station and the agent The base station is connected and has no direct connection with the core network.
A first base station, where the first base station is connected to a core network and includes:

The sending module is configured to send a first interface message to the core network or to a proxy base station connected to the core network, where the first interface message carries a transport layer address of the first base station, where The first interface message sent by the core network is used to instruct the core network to send a second interface message carrying the transport layer address of the first base station obtained by the core network to the proxy base station, and send the second interface message to the proxy base station. The first interface message sent by a proxy base station is used to instruct the proxy base station to send a third interface message carrying a transport layer address of the first base station obtained by the proxy base station to a second base station, and the second base station It is connected to the proxy base station and has no direct connection to the core network.
A system includes a core network, and further includes a first base station according to claim 19, a proxy base station according to claim 20, and a second base station according to claim 21.
A system includes a core network, and further includes a second base station according to claim 22, a proxy base station according to claim 23, and a first base station according to claim 24.
An electronic device includes a memory and a processor, and a computer program is stored in the memory, and the processor is configured to run the computer program to execute any one of claims 1 to 4 and 5 to 8 Item, any of 9-10, any of 11-12, any of 13-16, or any of 17-18.