WO2016101263A1

WO2016101263A1 - Communication method and network element apparatus

Info

Publication number: WO2016101263A1
Application number: PCT/CN2014/095133
Authority: WO
Inventors: 刘涛
Original assignee: 华为技术有限公司
Priority date: 2014-12-26
Filing date: 2014-12-26
Publication date: 2016-06-30
Also published as: CN105519230A; CN105519230B

Abstract

Provided in an embodiment of the present invention are a communication method and network element apparatus, the communication method comprising: establishing a wireless link between a second network element and an air interface provided by a user equipment (UE) function module arranged in a first network element, the second network element being an apparatus having a network access function; the first network element is in communication with the second network element via the wireless link; and through the communication method and the network element apparatus, the first network element can establish the wireless link between the second network element having the network access function and the air interface provided by the UE function module arranged in the first network element, the wireless link being a communication link directly established between the two network elements required to communicate, thus effectively reducing communication delay between the two network elements.

Description

Communication method and network element device

Technical field

The embodiments of the present invention relate to the field of wireless communications technologies, and in particular, to a communication method and a network element device.

Background technique

In the prior art, a communication link between two network elements is usually established based on a wired communication technology, such as a traditional S1 link between a Mobile Management Entity (MME) and a base station, a base station, and a base station. The traditional X2 links, etc., are realized by wired communication technologies such as optical fibers and network cables. The communication process based on these wired communication links usually needs to pass through multiple devices. The data in the communication link needs to pass multiple hops to reach the destination address during the transmission process, which tends to cause a high delay in data transmission.

Take the traditional X2 link as an example. If the traditional X2 link passes through multiple devices, the data transmitted by the traditional X2 link needs to be transmitted to the destination network element after multiple hops. 1 is a schematic diagram of a conventional X2 link in the prior art. As shown in Figure 1, the physical bearer of the traditional X2 link is an IP network, and the base station A and the base station B establish a traditional X2 link at the logical level through the interconnected wired IP network, and the base station A transmits to the base station B through the traditional X2 link. In the case of data, the data can reach the base station B at least 3 times through the switch 11, the router 12 and the switch 13. In general, if the network is not congested, increasing the number of hops will result in a delay of 0.5 ms, especially in the optical fiber transmission. In the middle, as the transmission distance increases, the delay is higher. Therefore, in some communication scenarios where the performance of the traditional X2 link is required and the delay is strictly required, the traditional X2 link cannot meet the delay requirement, which may adversely affect the interaction of the performance data.

Summary of the invention

The embodiment of the invention provides a communication method and a network element device, and establishes a wireless link with a second network element having a network access function by using an air interface provided by the UE function module, where the wireless link is directly needed in two The communication link established between the network elements that communicates can effectively reduce the communication delay between the two network elements.

In a first aspect, the embodiment of the present invention provides a network element device, where the network element device is a first network element, and includes:

a module is configured to establish a wireless link with the second network element by using an air interface provided by the user equipment UE function module that is disposed in the first network element, where the second network element is configured to have network access device;

And a communication module, configured to communicate with the second network element on the wireless link.

With reference to the first aspect, in the first implementation, the first network element is a device with a network access function; the network element device further includes:

a sending module, configured to send an X2 link establishment request to the second network element on the wireless link;

The receiving module is configured to receive an X2 link setup response sent by the second network element.

With reference to the first embodiment of the first aspect, in the second embodiment, the method further includes:

a determining module, configured to: after the sending module sends an X2 link establishment request to the second network element, on the wireless link, determine the first network element and the second The traditional X2 link between network elements is faulty.

With reference to the first embodiment of the first aspect, in the third embodiment, the method further includes:

a marking module, configured to, after the receiving module receives the X2 link setup response sent by the second network element, marking the wireless link as the first network element and the second network Air interface X2 link between the elements;

With reference to the third embodiment of the first aspect, in the fourth implementation, the communications module specifically includes:

And a splitting unit, configured to offload the data stream on the air interface X2 link and on the traditional X2 link between the first network element and the second network element.

With reference to the fourth embodiment of the first aspect, in the fifth implementation, the offloading unit is specifically configured to use the available bandwidth resources in the bandwidth resources of the air interface X2 link and the bandwidth resources of the traditional X2 link. Using the available bandwidth resources, offloading the data stream to be transmitted on the air interface X2 link and the X2 link; and/or,

Determining, by the first network element, the data stream to be transmitted on the air interface X2 link and the traditional X2 chain according to the QoS configuration of the QoS parameter of the traditional X2 link and the QoS configuration of the air interface X2 link Divide on the road.

In conjunction with the fifth embodiment of the first aspect, in the sixth embodiment, the QoS configuration includes at least one or a combination of the following configurations:

Delay configuration, priority configuration.

With reference to any one of the fourth to sixth embodiments of the first aspect, in the seventh implementation, the communication module further includes an adjusting unit, configured to use the available bandwidth in the bandwidth resource of the traditional X2 link The bandwidth resource requirement of the resource and the data stream to be transmitted is adjusted, and the bandwidth resource of the air interface X2 link and the bandwidth resource of the traditional X2 link are adjusted.

With reference to any one of the first to seventh embodiments of the first aspect, in the eighth implementation, optionally, the sending module sends the second network element on the wireless link The receiving module is further configured to receive a neighbor cell measurement report sent by the UE in the serving cell managed by the first network element, before the air interface X2 link establishment request is performed;

The determining module is further configured to determine, according to the neighbor cell measurement report, that the network element that manages the neighboring cell is the second network element.

With reference to any one of the first to eighth embodiments of the first aspect, in the ninth embodiment, the UE function module is set in the second network element, and optionally, the sending module is in the The determining module is further configured to determine an established radio link failure before sending the X2 link setup request to the second network element, where the established radio link is the second The network element is established with the first network element by using an air interface provided by the UE function module disposed in the second network element.

With reference to the first aspect, in the tenth embodiment, the first network element is a device with a network access function, and a connection is established with the mobility management entity MME, or the first network element is an MME, and the sending module is further used to Sending, by the wireless link, an S1 link establishment request to the second network element;

The receiving module is further configured to receive an S1 link setup response sent by the second network element.

With reference to the tenth embodiment of the first aspect, in the eleventh embodiment, after the receiving module receives the S1 link setup response sent by the second network element, the method further includes:

The marking module is further configured to mark the wireless link as an air interface S1 link.

In a second aspect, an embodiment of the present invention provides a communication method, where the method includes:

The first network element establishes a wireless link with the second network element by using an air interface provided by the user equipment UE function module in the first network element, where the second network element is a device with a network access function. ;

The first network element communicates with the second network element on the wireless link.

With reference to the second aspect, in the first implementation, the first network element is a device with a network access function;

Correspondingly, before the first network element communicates with the second network element on the wireless link, the method further includes:

Sending, by the first network element, an X2 link establishment request to the second network element on the wireless link;

The first network element receives an X2 link setup response sent by the second network element on the wireless link.

With reference to the first embodiment of the second aspect, in the second implementation, before the sending, by the first network element, the air interface X2 link establishment request to the second network element, the first network element further includes:

The first network element determines a traditional X2 link failure between the first network element and the second network element.

With reference to the first embodiment of the second aspect, in the third implementation, after the receiving, by the first network element, the X2 link setup response sent by the second network element, the first network element further includes:

The first network element marks the wireless link as an air interface X2 link between the first network element and the second network element;

With reference to the third embodiment of the second aspect, in the fourth implementation, the first network element is in communication with the second network element on the wireless link, including:

The first network element performs a offload transmission on the air interface X2 link and on the traditional X2 link between the first network element and the second network element.

With reference to the fourth implementation manner of the second aspect, in the fifth implementation, the first network element, the data stream is on the air interface X2 link, and between the first network element and the second network element The offload transmission on the X2 link includes:

The first network element flows the data to be transmitted in the air interface X2 chain according to the available bandwidth resources in the bandwidth resources of the air interface X2 link and the available bandwidth resources in the bandwidth resources of the traditional X2 link. Diverting on the road and the conventional X2 link; and/or,

Determining, by the first network element, the data stream to be transmitted on the air interface X2 link and the traditional X2 link according to the QoS configuration of the X2 link and the QoS configuration of the air interface X2 link Divide on.

With reference to the fifth embodiment of the second aspect, in the sixth embodiment, the QoS configuration includes at least one or a combination of the following configurations:

Delay configuration, priority configuration.

With reference to any one of the fourth to sixth embodiments of the second aspect, in the seventh embodiment, the method further includes:

The first network element adjusts the bandwidth resource of the air interface X2 link and the bandwidth resource of the traditional X2 link according to the available bandwidth resource in the bandwidth resource of the X2 link and the bandwidth resource requirement of the data stream to be transmitted. .

With reference to any one of the first to seventh embodiments of the second aspect, in the eighth implementation, the first network element sends an air interface X2 chain to the second network element on the wireless link Before the road establishment request, it also includes:

Receiving, by the first network element, a neighbor cell measurement report sent by the UE in the serving cell managed by the first network element;

The first network element determines, according to the neighbor cell measurement report, that the network element that manages the neighboring cell is the second network element.

With reference to any one of the first to eighth embodiments of the second aspect, in the ninth embodiment, the UE function module is set in the second network element, and the first network element is in the wireless chain. On the road, before sending the air interface X2 link establishment request to the second network element, the method further includes:

Determining an established radio link failure by the first network element; the established radio link is an air interface provided by the UE function module that is disposed in the second network element by the second network element, Established with the first network element.

With reference to the second aspect, in the tenth embodiment, the first network element is a device with a network access function, and the connection is established with the mobility management entity MME, or the first network element is an MME, and the first network element is in the Before communicating with the second network element on the wireless link, the method further includes:

Sending, by the first network element, an S1 link establishment request to the second network element on the wireless link;

The first network element receives an S1 link setup response sent by the second network element on the wireless link.

With reference to the tenth embodiment of the second aspect, in the eleventh embodiment, after the receiving, by the first network element, the S1 link setup response sent by the second network element, the first network element further includes:

The first network element marks the wireless link as an air interface S1 link.

In the communication method and the network element device provided by the embodiment of the present invention, the first network element may adopt an air interface provided by the UE function module and a second network with a network access function, because the UE function module is set in the first network element. The wireless link is established, and the wireless link does not need to pass other devices except the first network element and the second network element, and when the first network element and the second network element use the wireless link to transmit information, the information does not need to go through other The device may be from the first network element to the second network element, or from the second network element to the first network element, that is, the wireless link in this embodiment is directly established between two network elements that need to communicate. The link can effectively reduce the communication delay between two network elements.

DRAWINGS

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

1 is a schematic diagram of a conventional X2 link in the prior art;

2 is a schematic structural diagram of Embodiment 1 of a network element device according to the present invention;

3 is a schematic structural diagram of Embodiment 2 of a network element device according to the present invention;

4 is a schematic structural diagram of Embodiment 3 of a network element device according to the present invention;

FIG. 5 is a schematic flowchart of Embodiment 1 of a communication method according to the present invention;

FIG. 6 is a schematic flowchart of Embodiment 2 of a communication method according to the present invention;

FIG. 7 is a schematic flowchart diagram of Embodiment 3 of a communication method according to the present invention;

8 is a schematic flowchart of Embodiment 4 of a communication method according to the present invention;

FIG. 9 is a schematic flowchart diagram of Embodiment 5 of a communication method according to the present invention.

detailed description

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

FIG. 2 is a schematic structural diagram of Embodiment 1 of a network element device according to the present invention. As shown in FIG. 2, in this embodiment, the network element device is a first network element, and the opposite end of the first network element is a second network element, where the first network element has a UE (User Equipment) function module. The second network element is a device with a network access function, such as a base station, an AP access device, and the like. In this implementation, the first network element includes:

The establishing module 21 is configured to establish a wireless link with the second network element by using an air interface provided by the user equipment UE function module that is disposed in the first network element, where the second network element has a network access function. device of;

The working module of the UE may be a built-in mobile terminal, or a virtual UE implemented by means of software and/or hardware. The first network element may be configured by a UE function module disposed in the first network element. Providing an air interface, establishing a wireless link with the second network element; optionally, the foregoing UE function module initiates a wireless link establishment process to the second network element by using the air interface of the mobile terminal as an identity of the mobile terminal, and may refer to The random access process, the handover process, and the like involve a process of establishing a link through the air interface; but the two ends of the wireless link established by the UE function module through the air interface are the first network element and the second network element at the logical layer, and In the process of establishing a radio link through the air interface, the UE function module carries a specific identifier in the signaling sent to the second network element, so that the second network element can be the first The UE function module in a network element is different from the normal UE in the communication network. For example, in the signaling sent by the UE function module, a specific cell is assigned a value different from that of the normal UE, such as The assignment of the cell "rn-SubframeConfigReq" is different from that of the normal UE; after the second network element identifies the UE function module, optionally, the working module of the core network can be simulated by the second network element to complete the UE function. The access process of the module completes the establishment of the above wireless link.

The communication module 22 is configured to communicate with the second network element on the wireless link.

Optionally, the number of the function modules of the UE that is set in the first network element may be multiple, and when the number of the second network element is at least one, the first network element may pass the foregoing establishing module 21, Establishing a wireless link with each of the second network elements. Further, at least one wireless link may be established between the first network element and any one of the at least one of the second network elements.

In this embodiment, because the UE function module is set in the first network element, the first network element may use an air interface provided by the UE function module, and establish a wireless link with the second network element having the network access function, the wireless chain. The road does not need to pass other devices except the first network element and the second network element, and the first When the network element and the second network element use the wireless link to transmit information, the information may be from the first network element to the second network element or from the second network element to the first network element, that is, in this embodiment. The wireless link is a communication link established directly between two network elements that need to communicate, which can effectively reduce the communication delay between two network elements.

FIG. 3 is a schematic structural diagram of Embodiment 2 of a network element device according to the present invention. As shown in FIG. 3, this embodiment is further described on the basis of the embodiment shown in FIG. 2. Specifically, the first network element further includes:

The sending module 23 is configured to send an X2 link setup request to the second network element on the wireless link.

The receiving module 24 is configured to receive an X2 link setup response sent by the second network element.

It can be understood that the sending module 23 sends an X2 link setup request to the second network element on the wireless link, and then the second network element sends an X2 link setup response to the first network element, which can be regarded as the first network element and The second network element negotiates to configure the foregoing wireless link to have a traditional X2 link function;

Further, the determining module 25 is configured to: after the sending module 23 sends an X2 link establishment request to the second network element, on the wireless link, determine the first network element. A traditional X2 link failure with the second network element.

When the determining module 25 determines that the traditional X2 link between the first network element and the second network element is faulty, the determining module 25 triggers the sending module 23 to send the second network element on the wireless link. Sending an X2 link setup request, and then the receiving module 24 receives the second network element to send an X2 link setup response to the first network element, that is, the first network element and the second network element negotiate to configure the wireless link to have The traditional X2 link function establishes a backup link for the traditional X2 link of the above failure.

Further, the marking module 26 is further configured to mark the wireless link as an air interface X2 link between the first network element and the second network element;

It can be understood that, after the first network element and the second network element are configured by multiple working modules, all the working modules in the first network element and the second network element are required after the wireless link has the function of the traditional X2 link. It is known that the wireless link has the function of a traditional X2 link, so that when different working modules of the first network element and the second network element need to communicate with each other, the wireless link or the traditional X2 can be selected according to requirements; The module learns that the wireless link has a conventional X2 link function, the tagging module 26 needs to mark it, or the tagging module 26 needs to perform it when there is another wireless link between the first network element and the second network element. Marked to distinguish the first network element from each module within the second network element from each wireless link.

Then, in communication, the communication module 22 specifically includes a offloading unit 221 for performing data flow on the air interface X2 link and on a traditional X2 link between the first network element and the second network element. Split transmission.

Further, the offloading unit 221 is specifically configured to: according to the available bandwidth resources in the bandwidth resources of the air interface X2 link and the available bandwidth resources in the bandwidth resources of the traditional X2 link, the data stream to be transmitted is Diverting the air interface X2 link and the traditional X2 link; and/or,

Determining, by the first network element, the data stream to be transmitted on the air interface X2 link and the traditional X2 chain according to the QoS configuration of the QoS parameter of the traditional X2 link and the QoS configuration of the air interface X2 link Divide on the road. The QoS configuration includes at least one or a combination of the following configurations:

Delay configuration, priority configuration.

Optionally, the communication module 22 further includes an adjusting unit 222, configured to adjust the air interface X2 chain according to available bandwidth resources in the bandwidth resource of the traditional X2 link and bandwidth resource requirements of the data stream to be transmitted. Bandwidth resources of the road and bandwidth resources of the traditional X2 link.

After the wireless link is established, the first network element can establish an air interface X2 link. However, the first network element passes through the UE function module set in the first network element, and after establishing a wireless link with the second network element, the other link between the first network element and the second network element (such as the traditional X2) The link can meet the communication needs of both parties, and does not need a wireless link to replace the traditional X2 link or share the required data stream on the traditional X2 link; however, it is considered to be transmitted in the subsequent communication process. When the data stream is increased, or the traditional X2 link fails, the air interface X2 link can be quickly established based on the established wireless link, and the wireless link does not need to be re-established, thereby avoiding spending more time; therefore, optionally, The sending module 23 is further configured to: before the sending, by the sending module 23, the air interface X2 link establishment request to the second network element, the receiving module 24 is further configured to receive, in the serving cell managed by the first network element, a neighbor cell measurement report sent by the UE;

The determining module 25 is further configured to determine, according to the neighbor cell measurement report, that the network element that manages the neighboring cell is the second network element, and trigger the establishment of the wireless link as an air interface X2 link.

In addition, a UE function module is set in the second network element, and the second network element establishes an established air interface with the first network element by using an air interface provided by the UE function module disposed in the second network element. Wireless link, so the transmitting module 23 is on the wireless link, optionally, to the Before the second network element sends the X2 link establishment request, the determining module 25 is further configured to: when the established wireless link is faulty, trigger the establishment module of the first network element to re-establish a network element with the second network element. The wireless link, or the triggering transmitting module and the receiving module, are based on the wireless link established by the establishing module, so that it has the function of the traditional X2 link.

Flexible, the first network element is a device with a network access function, and the connection is established with the mobility management entity MME, or the first network element is the MME, and the sending module 23 is further configured to be on the wireless link. Sending an S1 link establishment request to the second network element;

The receiving module 24 is further configured to receive an S1 link setup response sent by the second network element. Then, after the receiving module 24 receives the S1 link setup response sent by the second network element, the marking module 26 is further configured to mark the wireless link as an air interface S1 link.

In this embodiment, because the UE function module is set in the first network element, the first network element may use an air interface provided by the UE function module, and establish a wireless link with the second network element having the network access function, the wireless chain. The device does not need to pass other devices except the first network element and the second network element. When the first network element and the second network element use the wireless link to transmit information, the information may be from the first network element to the first The second network element, or the second network element to the first network element, that is, the wireless link in this embodiment is a communication link established directly between two network elements that need to communicate, which can effectively reduce two networks. Communication delay between elements.

It should be noted that the network element device provided in FIG. 2 and FIG. 3 above may be implemented in other manners. For example, in the network element device shown in FIG. 2 and FIG. 3, the division of each module and unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple modules or units may be combined or further Divided into multiple modules or units, or some features can be ignored or not executed. In another point, there is a communication connection between each module and unit, and the communication connection may be realized by indirect coupling or direct coupling through some interfaces, and the communication connection may be in an electrical, mechanical or other form.

In addition, each module in each network element device embodiment may be integrated into one functional module, or may exist in a separate physical state; and each module may be implemented in the form of hardware and/or software.

FIG. 4 is a schematic structural diagram of Embodiment 3 of a network element device according to the present invention. As shown in FIG. 4, the network element device is a first network element, and the opposite end of the first network element is a second network element, where the first network element has a UE (User Equipment) function module, The second network element is a device with network access function. For example, the base station, the AP access device, and the like, the present embodiment provides a possible implementation manner of the network element device, including:

The processor 31 is configured to establish a wireless link with the second network element by using an air interface provided by the user equipment UE function module that is disposed in the first network element, where the second network element has a network access function. device of;

The processor 31 is further configured to communicate with the second network element on the wireless link.

Further, the first network element further includes a transmitter 32 and a receiver 33.

The transmitter 32 is configured to send an X2 link setup request to the second network element on the wireless link.

The receiver 33 is configured to receive an X2 link setup response sent by the second network element.

Further, the processor 31, optionally, before the sending the X2 link establishment request to the second network element, on the wireless link, is further configured to determine the first network element and the second network Traditional X2 link failure between elements;

The processor 31 is further configured to mark the wireless link as an air interface X2 link between the first network element and the second network element;

Thus, the processor 31 can be configured to offload the data stream on the air interface X2 link and on the traditional X2 link between the first network element and the second network element.

During the offloading, the processor 31 is specifically configured to: according to the available bandwidth resources in the bandwidth resources of the air interface X2 link and the available bandwidth resources in the bandwidth resources of the traditional X2 link, the data stream to be transmitted is Diverting the air interface X2 link and the X2 link; and/or,

Determining, by the first network element, the data stream to be transmitted on the air interface X2 link and the traditional X2 link according to the QoS configuration of the X2 link and the QoS configuration of the air interface X2 link Divide on. The QoS configuration includes at least one or a combination of the following configurations:

Delay configuration, priority configuration.

In addition, when the first network element communicates with the second network element, the processor 31 is further configured to adjust according to the available bandwidth resource in the bandwidth resource of the traditional X2 link and the bandwidth resource requirement of the data stream to be transmitted. The bandwidth resource of the air interface X2 link and the bandwidth resource of the traditional X2 link.

Optionally, the receiver 33 is configured to receive, by the first network element, the serving cell managed by the first network element, before sending the air interface X2 link establishment request to the second network element. inside a neighbor cell measurement report sent by the UE;

The processor 31 is further configured to determine, according to the neighbor cell measurement report, that the network element that manages the neighboring cell is the second network element, thereby triggering establishment of a wireless link or establishing an air interface X2 chain on the wireless link. road.

In addition, the processor 31, optionally, on the wireless link, before sending the X2 link setup request to the second network element, is also used to determine that the established radio link failure also triggers establishment of the wireless Establishing an air interface X2 link on the wireless link or on the wireless link; wherein the second network element is provided with a UE function module, and the established wireless link is the second network element The air interface provided by the UE function module disposed in the second network element is established with the first network element.

Flexible, the first network element is a device with a network access function, and establishes a connection with the mobility management entity MME, or the first network element is an MME, and the transmitter 32 is further configured to use the wireless link to The second network element sends an S1 link establishment request;

The receiver 33 is further configured to receive an S1 link setup response sent by the second network element. Optionally, after the receiver 33 receives the S1 link setup response sent by the second network element, the processor 31 may further mark the wireless link as an air interface S1 link.

It should be noted that the network element devices shown in FIG. 2 to FIG. 4 can be used in the following various method embodiments. Each module and device in the network element device corresponds to each step in the following method embodiments. The operational procedures and benefits can be seen in the various method embodiments described below.

FIG. 5 is a schematic flowchart diagram of Embodiment 1 of a communication method according to the present invention. As shown in FIG. 5, the executor of the present embodiment is a first network element, and the opposite end of the first network element is a second network element, where the first network element has a UE (User Equipment) function module. The second network element is a device with a network access function, such as a base station, an AP access device, etc., and the method for communicating between the first network element and the second network element provided in this embodiment may apply multiple communication standards, such as LTE (Long Time Evolution, long Evolution), UMTS (Universal Mobile Telecommunications System), GSM (Global System for Mobile Communications), Wi-Fi (Wireless Fidelity), Wimax (Worldwide Interoperability for Microwave Access) , global microwave interconnection access) and other communication standards, specifically, this implementation is as follows:

S101. The first network element establishes a wireless link with the second network element by using an air interface provided by the UE function module that is disposed in the first network element.

S102. The first network element communicates with the second network element on the wireless link.

Optionally, the number of the function modules of the UE that are set in the first network element may be multiple. When the number of the second network element is at least one, the first network element may pass through the foregoing S101. A second network element establishes a wireless link; further, at least one wireless link may be established between the first network element and any one of the at least one of the second network elements.

In this embodiment, because the UE function module is set in the first network element, the first network element may use an air interface provided by the UE function module, and establish a wireless link with the second network element having the network access function, the wireless chain. The path does not need to pass through other devices except the first network element and the second network element. When the first network element and the second network element use the wireless link to transmit information, the information does not need to pass other devices. The first network element to the second network element, or the second network element to the first network element, that is, the wireless link in this embodiment is a communication link established directly between two network elements that need to communicate. It can effectively reduce the communication delay between two network elements.

FIG. 6 is a schematic flowchart diagram of Embodiment 2 of a communication method according to the present invention. As shown in FIG. 6, the embodiment of the present invention is further described based on the embodiment shown in FIG. 5. In this embodiment, the first network element is a device with a network access function, and the present embodiment is Examples include:

S201: The first network element establishes a wireless link with the second network element by using an air interface provided by the user equipment UE function module that is disposed in the first network element.

In this embodiment, the first network element is a device with a network access function, and the second network element is also a device with a network access function. In the prior art, between the first network element and the second network element. The communication is performed by the traditional X2 link implemented by the wired communication technology, but in this embodiment, the first network element adopts an air interface provided by the user equipment UE function module disposed in the first network element, and the The second network element establishes a wireless link, and the wireless link can be used to replace the traditional X2 link in the prior art. Specifically, in an optional manner, the first network element and the second network element establish a wireless chain. After the road, the operation and maintenance personnel configure the wireless link to have the function of the traditional X2 link, that is, an air interface X2 is established; when the automation capability of the network element in the communication network is high, it can be self-established through the following S202 to S203. Air interface X2 link:

S202. The first network element sends an X2 link setup request to the second network element on the wireless link.

S203. The first network element receives the X2 link setup response sent by the second network element on the wireless link.

It can be understood that the first network element sends an X2 link setup request to the second network element on the wireless link, and then the second network element sends an X2 link setup response to the first network element, which can be regarded as the first network element. And the second network element is configured to configure the foregoing wireless link to have a traditional X2 link function. It can be understood that the first network element and the second network element are configured by multiple working modules, and in the foregoing S202 and S203, Implemented by a working module in the first network element, correspondingly, the second network element receives the X2 link setup request on the wireless link, and the X2 link setup response sent on the wireless link is also performed by the second After a certain working module in the network element is completed, after STP and S203 are configured, all the working modules in the first network element and the second network element are required to know that the wireless link has a traditional X2 chain. The function of the road, so that when different working modules of the first network element and the second network element need to communicate with each other, the wireless link or the traditional X2 may be selected according to requirements; in order to make each working module know that the wireless link has a traditional X2 chain Road function, so you need to perform the following S204 Or the first network element and a second network element between the When there are other wireless links, S204 is performed to distinguish the first network element from the second network element from the other wireless links and the wireless link having the traditional X2 link function, as follows:

S204. The first network element marks the radio link as an air interface X2 link between the first network element and the second network element.

Correspondingly, in the perspective of the second network element, the wireless link is also marked as an air interface X2 link between the first network element and the second network element;

Communication with the second network element is then performed on the air interface X2 link in accordance with S205 described below.

S205. The first network element communicates with the second network element on the air interface X2 link.

Further, the UE is configured with the UE function module in the first network element, and after the first network element is powered on, the UE function module set in the first network element searches for a nearby cell, and is set in the first network element. The UE function module searches for the cell A, and the UE function module set in the first network element initiates a random access process to the network element corresponding to the cell A. The UE function module set in the first network element in this embodiment is used. Different from other common UEs in the communication network, the UE function module performs the random access process, and the assignment of the signal "rn-SubframeConfigReq" in the signaling is different from that of the normal UE, so that the second network element can use the first network. The UE function module in the meta-communication is different from the normal UE in the communication network; at this time, for the first network element, the network element corresponding to the cell A is the second network element, and after the random access process is completed, the first network The wireless link between the network element corresponding to the cell A is established.

After the establishment of the wireless link is complete, the first network element can immediately perform the foregoing S202-S203 to establish an air interface X2 link. However, the first network element passes through the UE function module set in the first network element, and after establishing a wireless link with the second network element, the other link between the first network element and the second network element (such as the traditional X2) The link can meet the communication needs of both parties, and does not need a wireless link to replace the traditional X2 link or share the required data stream on the traditional X2 link; however, it is considered to be transmitted in the subsequent communication process. When the data stream is increased, or the traditional X2 link fails, the air interface X2 link can be quickly established based on the established wireless link, and the wireless link does not need to be re-established, thereby avoiding spending more time; therefore, an optional In the mode, after performing S201, the air interface X2 link is not immediately established, and the wireless link is not released, that is, before the step S202 is performed, the following steps are performed:

C1: The first network element receives a neighbor cell measurement report sent by the UE in the serving cell managed by the first network element.

The measurement report associated with the neighboring cell is generated after the terminal measures the neighboring cell and obtains a measurement result, and determines that the measurement result satisfies an entry condition of the measurement report event.

C2: The first network element determines, according to the neighbor cell measurement report, that the network element that manages the neighboring cell is the second network element.

For example, in S201, after the first network element is powered on, the UE function module set in the first network element searches for a nearby cell, and when the UE function module set in the first network element searches for the cell A, The UE function module set in the first network element initiates a random access procedure to the network element corresponding to the cell A. After the random access process is completed, the wireless link between the first network element and the network element corresponding to the cell A The network element corresponding to the cell A is the second network element for the first network element, and the first network element records the ID information of the second network element.

Then, in C1, the UE in the serving cell managed by the first network element measures the neighboring cell and obtains the measurement result, and the UE in the serving cell managed by the first network element determines that the measurement result satisfies the entry condition of the measurement report event. The measurement report associated with the neighboring cell is generated, and the measurement report is sent to the first network element. If possible, the UE in the serving cell managed by the first network element is managed by the first network element. The cell is switched to the neighboring cell, so that the network element corresponding to the first cell and the neighboring cell needs to perform multiple signaling transmissions. Therefore, the first network element determines the ID information of the network element corresponding to the neighboring cell, and The recorded second network element has the same ID information, and the network element that manages the neighboring cell is determined to be the second network element, that is, the first network element performs C2, and the first network element and the second network element are determined to be more The second signaling is performed because the first network element uses the air interface X2 link and the second network element to perform signaling, which makes the communication efficiency higher. Therefore, the first network element executes C2, and the first network element is triggered to execute S202-S203. To establish the first network element and the first X2 link air interface between the network elements, and then in accordance with S205, transmission and signaling the second network element on the air interface X2 link.

FIG. 7 is a schematic flowchart diagram of Embodiment 3 of a communication method according to the present invention. As shown in FIG. 7, the embodiment of the present invention is further described on the basis of the embodiment shown in FIG. 5. In this embodiment, the first network element is a device with a network access function, and The mobility management entity MME establishes a connection, Or the first network element is the MME, the embodiment includes:

S301: The first network element establishes a wireless link with the second network element by using an air interface provided by the user equipment UE function module that is disposed in the first network element.

When the first network element is the MME, and the second network element is the device with the network access function, in the prior art, the communication between the first network element and the second network element is implemented by using a wired communication technology. The traditional S1 link is used, but in this embodiment, the first network element uses the air interface provided by the user equipment UE function module disposed in the first network element, and establishes a wireless link with the second network element. The wireless link is used to replace the traditional S1 link in the prior art. Specifically, in an optional manner, after the first network element establishes a wireless link with the second network element, the operation and maintenance personnel use the wireless The link is configured as an air interface S1 link. The air interface S1 link is a wireless link with the traditional S1 link function. When the automation capability of the network element in the communication network is high, the S1 chain can be established from the following S302 to S303. road;

Flexible, when the first network element is a device with a network access function, and establishes a connection with the mobility management entity MME, that is, the first network element has established a traditional S1 link with the MME; when the second network element needs a traditional When the S1 link establishes communication with the MME, the first network element establishes a wireless link with the second network element by using an air interface provided by the user equipment UE function module disposed in the first network element, so that the second network element A link exists between the element and the MME, and the link is composed of a traditional S1 link between the first network element and the MME, and a wireless link between the first network element and the second network element, and then the operation and maintenance personnel The wireless link is configured to have the traditional S1 link function, or the wireless link is configured to have the traditional S1 link function spontaneously through the following S302-S303, and the second network element and the MME can pass through the first network. The wireless link between the element and the second network element and the traditional S1 link between the first network element and the MME communicate.

S302. The first network element sends an S1 link setup request to the second network element on the wireless link.

S303. The first network element receives an S1 link setup response sent by the second network element on the wireless link.

It can be understood that the first network element sends an S1 link setup request to the second network element, and then the second network element sends an S1 link setup response to the first network element, which can be regarded as the first network element and the second network element. The above-mentioned wireless link is configured to have the traditional S1 link function, that is, an air interface S1 link is established, and then the second network element is connected to the wireless link with the traditional S1 link function according to the following S305. Communicate.

The above S302 and S303 are implemented by a working module in the first network element, and correspondingly, the second The network element receives the S1 link setup request on the wireless link, and the S1 link setup response sent on the wireless link is also completed by a working module in the second network element, and the wireless is performed through S302 and S303. After the link configuration is complete, all the working modules in the first network element and the second network element are required to know that the wireless link has the function of the S1 link, so that different working modules in the first network element and the second network element are When communication is required, the wireless link or the conventional X2 can be selected as needed; in order for each working module to know that the wireless link has the S1 link function, the following S304 is also required:

S304. The first network element marking radio link is an air interface S1 link.

Correspondingly, in the perspective of the second network element, the wireless link is also marked as an air interface S1 link;

S305. The first network element communicates with the second network element on the air interface S1 link.

FIG. 8 is a schematic flowchart diagram of Embodiment 4 of a communication method according to the present invention. As shown in FIG. 8, the first network element establishes a wireless link with the second network element by using an air interface provided by the user equipment UE function module disposed in the first network element, where the wireless chain is in this embodiment. The path may be matched with a link established by the first network element and the second network element based on the wired communication technology. Specifically, in this embodiment, the air interface X2 link established based on the wireless link is used for description. This embodiment includes :

S401. The first network element establishes a wireless link with the second network element by using an air interface provided by the user equipment UE function module that is disposed in the first network element.

S402. The first network element sends an X2 link establishment request to the second network element on the wireless link.

S403. The first network element receives an X2 link setup response sent by the second network element on the wireless link.

S404. The first network element marks the radio link as an air interface X2 link between the first network element and the second network element.

The above S401 to S404 are the same as the foregoing S201 to S204. Alternatively, in the embodiment, before the occurrence of S402, the steps described in the above C1 to C2 are generated to trigger the first network element to implement S402 to S403. If the first network element determines a traditional X2 link fault between the first network element and the second network element, the first network element performs S402-S403 to establish a fault. The backup link of the traditional X2 link, that is, the failure of the traditional X2 link triggers the first network element to perform S402-S403, or the failure of the traditional X2 link triggers the first network element to execute S401-S403 to establish a fault of the above-mentioned fault. The backup link of the traditional X2 link; or the conventional X2 link is not faulty. In this embodiment, a wireless link for sharing the transmission load of the traditional X2 link is established through S401 to S403 or S402 to S403. The first network element carries the ID identifier of the first network element in the X2 link setup request sent by the wireless link, and optionally, the wireless link between the first network element and the second network element is only If the number of the wireless links between the first network element and the second network element is multiple, S404 is also performed to distinguish the first network element from the second network element. a wireless link that implements the traditional X2 link function and other wireless links;

When the air interface X2 link is used to share the transmission load of the traditional X2 link, the specific process of the first network element communicating with the second network element on the wireless link is as follows:

S405. The first network element performs a offload transmission on the air interface X2 link and the traditional X2 link between the first network element and the second network element.

Optionally, according to the available bandwidth resources in the bandwidth resources of the air interface X2 link and the available bandwidth resources in the bandwidth resources of the traditional X2 link, the data stream to be transmitted may be in the air interface X2 link and the Diverting on the traditional X2 link;

For example, when the air interface X2 link and the traditional X2 link are initially established, the respective bandwidth resources are configured. For example, the bandwidth resource of the air interface X2 link is 8M bandwidth, and the bandwidth resource of the traditional X2 link is 2M bandwidth; Before the link and the traditional X2 link transmit the data stream, the available bandwidth resource in the bandwidth resource of the air interface X2 link is 8M bandwidth, and the available bandwidth resource in the bandwidth resource of the traditional X2 link is 2M bandwidth; When streaming, the data stream to be transmitted is shunted according to the ratio of the bandwidth of the air interface X2 link to the bandwidth of the traditional X2 link: 8:2;

Then, in the process of transmitting data between the air interface X2 link and the traditional X2 link, the traffic of the transmitted data stream changes in real time, so that the split ratio of the data stream to be transmitted can be dynamically adjusted in real time, for example, the air interface X2 link is learned. The bandwidth of the bandwidth of the air interface X2 link is 2M bandwidth. The traditional X2 link occupies 1M bandwidth. In this case, the bandwidth of the traditional X2 link is in the bandwidth resource. The available bandwidth resource is the unoccupied 1M bandwidth, and the data stream to be transmitted in real time is compared on the air interface X2 link and the traditional X2 link. Example 2: 1 for shunting;

Considering that the communication environment is complex and variable, the bandwidth resources configured during the initial establishment of the air interface X2 link may not be completely used due to interference and other factors during actual communication transmission, which may affect the transmission of information. Therefore, the first network element may Adjusting the bandwidth resource of the air interface X2 link and the bandwidth resource of the traditional X2 link according to the available bandwidth resource in the bandwidth resource of the traditional X2 link and the bandwidth resource requirement of the data stream to be transmitted; for example, the air interface X2 When the link is initially established, the bandwidth resource of the air interface X2 link is configured to be 8M bandwidth, and then the first network element and the second network element are used for data offloading using the traditional X2 link and the air interface X2 link, due to communication interference, etc. Factor: The 4M bandwidth of the 8M bandwidth of the air interface X2 link is unavailable, only the remaining 4M bandwidth is available, while the available bandwidth resource on the traditional X2 link is 2M; but the bandwidth resource requirement of the data stream to be transmitted is 8M bandwidth. In order to complete the transmission of the data stream normally, the 8M bandwidth of the air interface X2 link can be adjusted to 10M bandwidth in real time, thereby changing the available bandwidth resources from 4M bandwidth to 6M bandwidth, and then The data stream to be transmitted is split on the air interface X2 link and the conventional X2 link in a 6:2 ratio.

Optionally, when the first network element performs the offload transmission on the traditional X2 link between the first network element and the second network element, the first network element may further perform the data transmission according to the traditional X2 link between the first network element and the second network element. The QoS configuration of the QoS parameter of the traditional X2 link and the QoS configuration of the air interface X2 link, offloading the data stream to be transmitted on the air interface X2 link and the traditional X2 link; wherein the QoS The configuration includes at least one or a combination of the following configurations: delay configuration, priority configuration.

For example, when the first network element and the second network element are transmitting at the current time or the data stream being transmitted on the traditional X2 link has a higher delay requirement, the established air interface X2 link has a lower delay than the conventional one. The X2 link is configured to migrate the data stream to be transmitted from the traditional X2 link to the air interface X2 link, so as to prevent the communication between the first network element and the second network element from being interrupted due to excessive delay;

In addition, the foregoing QoS configuration may be learned by the first network element according to the static configuration of the traditional X2 link and the air interface X2 link, or may be obtained by detecting the traditional X2 link and the air interface X2 link in real time; for example, the current time The communication environment of the traditional X2 link is good, and the traditional X2 link can meet the delay requirement of the information to be transmitted; then the traditional X2 link is used to transmit the data stream to be transmitted; but in the subsequent transmission process, the first network element By detecting that the delay of the traditional X2 link becomes higher and the delay requirement of the information being transmitted on the traditional X2 link cannot be met, the data stream to be transmitted on the traditional X2 link can be migrated to the real-time in real time. Air interface X2 link.

Optionally, the first network element may further combine the QoS configuration of the QoS parameter of the traditional X2 link with the QoS configuration of the air interface X2 link, and the available bandwidth resources in the bandwidth resource of the air interface X2 link and the traditional X2 link. The available bandwidth resources in the bandwidth resource, and the data stream to be transmitted is offloaded on the air interface X2 link and the traditional X2 link.

In this embodiment, because the UE function module is set in the first network element, the first network element may use an air interface provided by the UE function module, and establish a wireless link with the second network element having the network access function, the wireless chain. The device does not need to pass other devices except the first network element and the second network element. When the first network element and the second network element use the wireless link to transmit information, the information may be from the first network element to the first The second network element, or the second network element to the first network element, that is, the wireless link in this embodiment is a communication link established directly between two network elements that need to communicate, which can effectively reduce two networks. The communication delay between the elements; and when the wireless link is configured as the air interface X2 link, the air interface X2 link can replace the traditional X2 link or cooperate with the traditional X2 link to efficiently implement the first network element and Communication transmission between the second network elements.

FIG. 9 is a schematic flowchart diagram of Embodiment 5 of a communication method according to the present invention. As shown in FIG. 9 , in the embodiment, the first network element is used as the base station A, and the second network element is used as the base station B. Based on the foregoing embodiments of the foregoing communication methods, further description is provided. as follows:

S501. The base station A establishes the radio link 1 with the base station B by using an air interface provided by the UE function module disposed in the base station A.

S502. The base station A sends an X2 link establishment request to the base station B on the radio link 1.

S503. The base station A receives the X2 link setup response sent by the base station B on the radio link 1.

S504. The base station A marks the radio link 1 as the air interface X2 link 1.

At the same time, base station B also marks radio link 1 as air interface X2 link 1.

S505. The base station A communicates with the base station B on the air interface X2 link 1.

In the foregoing S501 to S505, the base station A as the first network element establishes the radio link 1 with the base station B as the second network element by using the air interface provided by the UE function module set in the base station A; The wireless link 1 establishes the air interface X2 link 1 and communicates with the second network element on the air interface X2 link 1. For details, refer to the foregoing S401 to S405.

S506. The base station B determines that the radio link 1 is faulty.

For example, within a preset time, the base station B does not receive the heartbeat response of the base station A on the air interface X2 link 1 established based on the radio link 1, and confirms that the radio link 1 is faulty.

S507. The base station B establishes the radio link 2 with the base station A by using an air interface provided by the UE function module disposed in the base station B.

For the base station B that establishes the radio link 2, the foregoing radio link 1 is an established radio link. When determining that the established radio link is faulty, in this embodiment, the base station B serves as the first network element, and the base station The air interface provided by the UE function module in B establishes a wireless link 2 with the base station A as the second network element at this time;

That is to say, in the communication network, when the UE function module is built in two devices with network access functions, when the wireless link to be used between two devices with network access functions is faulty, Any one of the devices with the network access function can initiate the establishment of the wireless link and solve the problem caused by the faulty wireless link in time.

S508. The base station B sends an X2 link establishment request to the base station A on the radio link 2.

S509. The base station B receives the X2 link setup response sent by the base station A on the radio link 2.

S510. The base station B marks the radio link 2 as the air interface X2 link 2.

At the same time, base station A also marks radio link 2 as air interface X2 link 2.

S511. The base station B communicates with the base station A on the air interface X2 link 2.

In a possible case, when the base station A performs S501 to S505, the UE function module in the base station B initiates a random access procedure by searching for a cell when the base station B is powered on, and has established a wireless chain with the base station A. Road 2; but since base station A uses radio link 1 to establish air interface X2 link 1, communicate with base station B; then base station B does not use radio link 2, and does not release radio link 2; then when base station B executes S506 If it is determined that the wireless link 1 is faulty, the base station B can immediately execute S508 to S511 without performing S507.

In this embodiment, because the UE function module is set in the first network element, the first network element may use an air interface provided by the UE function module, and establish a wireless link with the second network element having the network access function, the wireless chain. The device does not need to pass other devices except the first network element and the second network element. When the first network element and the second network element use the wireless link to transmit information, the information may be from the first network element to the first The second network element, or the second network element to the first network element, that is, the wireless link in this embodiment is a communication link established directly between two network elements that need to communicate, which can effectively reduce two networks. The communication delay between the elements; and when the wireless link is configured as the air interface X2 link, the air interface X2 link can replace the X2 link or cooperate with the X2 link to efficiently implement the first network element and the second Communication transmission between network elements.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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

Claims

A network element device, where the network element device is a first network element, including:

a module is configured to establish a wireless link with the second network element by using an air interface provided by the user equipment UE function module that is disposed in the first network element, where the second network element is configured to have network access device;

And a communication module, configured to communicate with the second network element on the wireless link.
The network element device according to claim 1, wherein the first network element is a device having a network access function; and the network element device further includes:

a sending module, configured to send an X2 link establishment request to the second network element on the wireless link;

The receiving module is configured to receive an X2 link setup response sent by the second network element.
The network element device of claim 2, further comprising:

a determining module, configured to determine, between the first network element and the second network element, before the sending module sends an X2 link establishment request to the second network element on the wireless link The traditional X2 link is faulty.
The network element device of claim 2, further comprising:

a marking module, configured to mark, after the receiving module receives the X2 link setup response sent by the second network element, the radio link as an air interface between the first network element and the second network element X2 link;
The network element device according to claim 4, wherein the communication module specifically comprises:

And a splitting unit, configured to offload the data stream on the air interface X2 link and on the traditional X2 link between the first network element and the second network element.
The network element device according to claim 5, wherein the offloading unit is specifically configured to be available according to available bandwidth resources in a bandwidth resource of the air interface X2 link and bandwidth resources of the traditional X2 link. a bandwidth resource, where the data stream to be transmitted is offloaded on the air interface X2 link and the X2 link; and/or,

Determining, by the first network element, the data stream to be transmitted on the air interface X2 link and the traditional X2 chain according to the QoS configuration of the QoS parameter of the traditional X2 link and the QoS configuration of the air interface X2 link Divide on the road.
The network element device according to claim 6, wherein the QoS configuration comprises at least one or a combination of two of the following configurations:

Delay configuration, priority configuration.
The network element device according to any one of claims 5 to 7, wherein the communication module further comprises an adjusting unit, configured to allocate bandwidth resources and required transmissions according to bandwidth resources of the traditional X2 link. The bandwidth resource requirement of the data stream is adjusted, and the bandwidth resource of the air interface X2 link and the bandwidth resource of the traditional X2 link are adjusted.
The network element device according to any one of claims 2 to 8, wherein before the sending module sends an air interface X2 link establishment request to the second network element on the wireless link, The receiving module is further configured to receive a neighbor cell measurement report sent by the UE in the serving cell managed by the first network element;

The determining module is further configured to determine, according to the neighbor cell measurement report, that the network element that manages the neighboring cell is the second network element.
The network element device according to any one of claims 2 to 9, wherein a UE function module is set in the second network element, and the transmitting module is on the wireless link, Before the second network element sends the X2 link establishment request, the determining module is further configured to determine that the established wireless link is faulty; and the established wireless link is that the second network element is set to be in the second The air interface provided by the UE function module in the network element is established with the first network element.
The network element device according to claim 1, wherein the first network element is a device having a network access function, and the connection is established with the mobility management entity MME, or the first network element is an MME, and the sending module further And transmitting, on the wireless link, an S1 link establishment request to the second network element;

The receiving module is further configured to receive an S1 link setup response sent by the second network element.
The network element device according to claim 11, wherein after the receiving module receives the S1 link setup response sent by the second network element, the method further includes:

The marking module is further configured to mark the wireless link as an air interface S1 link.
A communication method, characterized in that the method comprises:

The first network element establishes a wireless link with the second network element by using an air interface provided by the user equipment UE function module in the first network element, where the second network element is a device with a network access function. ;

The first network element communicates with the second network element on the wireless link.
The method according to claim 13, wherein the first network element is a device having a network access function;

Correspondingly, before the first network element communicates with the second network element on the wireless link, the method further includes:

Sending, by the first network element, an X2 link establishment request to the second network element on the wireless link;

The first network element receives an X2 link setup response sent by the second network element on the wireless link.
The method according to claim 14, wherein the first network element, before the sending of the air interface X2 link establishment request to the second network element, on the wireless link, further includes:

The first network element determines a traditional X2 link failure between the first network element and the second network element.
The method according to claim 14, wherein the first network element, after receiving the X2 link setup response sent by the second network element, on the wireless link, further includes:

The first network element marks the wireless link as an air interface X2 link between the first network element and the second network element;
The method according to claim 16, wherein the first network element communicates with the second network element on the wireless link, including:

The first network element performs a offload transmission on the air interface X2 link and on the traditional X2 link between the first network element and the second network element.
The method according to claim 17, wherein the first network element streams the data on the air interface X2 link and the X2 link between the first network element and the second network element Split transmission on, including:

The first network element flows the data to be transmitted in the air interface X2 chain according to the available bandwidth resources in the bandwidth resources of the air interface X2 link and the available bandwidth resources in the bandwidth resources of the traditional X2 link. Diverting on the road and the conventional X2 link; and/or,

Determining, by the first network element, the data stream to be transmitted on the air interface X2 link and the traditional X2 link according to the QoS configuration of the X2 link and the QoS configuration of the air interface X2 link Divide on.
The method of claim 18, wherein the QoS configuration comprises at least one or a combination of two of the following configurations:

Delay configuration, priority configuration.
The method according to any one of claims 17 to 19, further comprising:

The first network element adjusts the bandwidth resource of the air interface X2 link and the bandwidth resource of the traditional X2 link according to the available bandwidth resource in the bandwidth resource of the X2 link and the bandwidth resource requirement of the data stream to be transmitted. .
The method according to any one of claims 14 to 20, wherein the first network element, before the air interface X2 link establishment request is sent to the second network element on the wireless link, further includes :

Receiving, by the first network element, a neighbor cell measurement report sent by the UE in the serving cell managed by the first network element;

The first network element determines, according to the neighbor cell measurement report, that the network element that manages the neighboring cell is the second network element.
The method according to any one of claims 14 to 21, wherein a UE function module is set in the second network element, and the first network element is on the wireless link, to the Before the second NE sends the air interface X2 link establishment request, it also includes:

Determining an established radio link failure by the first network element; the established radio link is an air interface provided by the UE function module that is disposed in the second network element by the second network element, Established with the first network element.
The method according to claim 13, wherein the first network element is a device having a network access function, and the connection is established with the mobility management entity MME, or the first network element is an MME, and the first network element is Before communicating with the second network element on the wireless link, the method further includes:

Sending, by the first network element, an S1 link establishment request to the second network element on the wireless link;

The first network element receives an S1 link setup response sent by the second network element on the wireless link.
The method according to claim 23, wherein the first network element, after receiving the S1 link setup response sent by the second network element, on the wireless link, further includes:

The first network element marks the wireless link as an air interface S1 link.