WO2014166112A1

WO2014166112A1 - Method and device for across-system interoperation

Info

Publication number: WO2014166112A1
Application number: PCT/CN2013/074151
Authority: WO
Inventors: 邢平平; 房明; 陈燕燕; 谭斌
Original assignee: 华为技术有限公司
Priority date: 2013-04-12
Filing date: 2013-04-12
Publication date: 2014-10-16
Also published as: CN104303590B; CN104303590A

Abstract

The present invention provides a method and a device for across-system interoperation, and relates to the technical field of communications. The method comprises: receiving a first message comprising first wireless network information of a core network, generating second wireless network information according to an air interface protocol and the first wireless network information of the core network in the first message, and sending the second wireless network information to a user equipment. In the present invention, second wireless network information is generated according to an air interface protocol and first wireless network information of a core network in a received first message and the second wireless network information is sent, or fourth wireless network information is generated according to an interface protocol of a terrestrial interface and third wireless network information of a user equipment in the received second message and the fourth wireless network information is sent; in this manner, across-system decoupling of the terrestrial interface and the air interface is implemented, across-system integration is implemented, and inter-system operation signaling and time delay are reduced, and accordingly, decoupling of network standards between an NAS interface, the air interface and the terrestrial interface is implemented, thereby forming a real Single RAN integrating multiple network standards.

Description

Description Method and device for inter-system interoperability

The present invention relates to the field of communications technologies, and in particular, to a method and device for inter-system interoperation. Background technique

At present, 2G/3G (2nd Generation/3rd Generation, 2nd Generation Mobile Communication Technology/3rd Generation Mobile Communication Technology) network has been widely deployed in many regions. With the rapid development of communication technologies, a new generation of evolutionary networks such as LTE (Long Term Evolution) networks have already covered some urban areas and traffic hotspots, and thus there are concurrent networks and 2G/3G networks. In order to reduce the cost, a Single RAN (Single Radio Access Network) solution shared by the radio access network device is generated. The Fusion Network provides a single RAN technology evolution method. Cross-system interoperability technology is the key technology for logical network convergence in the Fusion Network's Single RAN solution.

In the existing cross-system interoperation process, the air interface and the ground interface are corresponding, and the NAS (Non Access Stratum) interface and the air interface/ground interface are also corresponding to the NAS interface, air interface and ground. The network standard of the interface is related. E.g. UMTS (Universal Mobile

The Telecommunications System (UET) network connects the UE (User Equipment) to the UMTS core network through the air interface and the ground interface of the UMTS network. If the UE connected to the UMTS network needs to switch to the LTE network, the UMTS access network needs to send a handover request to the UMTS core network, and the UMTS core network sends a request to the target LTE core network, and the target LTE core network sends a handover request to the target LTE access. The LTE access network performs the configuration of the air interface resource, and returns the handover response to the LTE core network, and sends the handover command message to the UMTS network UE through the ground interface and the air interface of the UMTS network, and the UMTS network UE configures according to the received air interface resource. It is required to configure an air interface connection and then access the target LTE network.

In the prior art, each network system is independent. For each network standard, the NAS interface, the air interface and the ground interface are end-to-end coupled, which leads to interoperability between the systems. End-to-end inter-system interoperability signaling is extended and the NAS interface and air interface cannot be implemented. The network interface between the ground interfaces is decoupled, so that the true multi-network standard Single RAN cannot be formed. Summary of the invention

In order to solve the problems in the prior art, embodiments of the present invention provide a method and device for inter-system interoperation. The technical solution is as follows:

In a first aspect, a method for inter-system interoperability is provided, the method comprising:

The access network device receives the first message sent by the core network by using a ground interface between the access network and the core network, where the first message includes the first wireless network information of the core network;

The access network device parses the first wireless network information of the core network from the first message;

The access network device generates second wireless network information according to the air interface protocol of the air interface between the access network and the user equipment and the first wireless network information of the core network;

The access network device sends the second wireless network information to the user equipment by using an air interface between the access network and the user equipment.

With reference to the first aspect, in a first possible implementation manner of the first aspect, a network interface of a ground interface between the access network and a core network, and between the access network and the user equipment The air interface of the air interface is inconsistent.

With reference to the first aspect, the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first message further includes the first non-access stratum NAS information of the core network; The method further includes:

If the network standard of the ground interface between the access network and the core network is different from the network format of the air interface between the access network and the user equipment, the access network device is from the first Parsing out the first NAS information of the core network in the message;

The access network device converts the first NAS information of the core network into the second NAS information according to the network standard of the air interface between the access network and the user equipment;

The access network device sends the second NAS information to the user equipment by using an air interface between the access network and the user equipment.

A second aspect provides an access network device, where the access network device includes:

a first receiving module, configured to receive, by using a ground interface between the access network and the core network, a first message sent by the core network, where the first message includes first wireless network information of the core network;

a first parsing module, configured to parse the first wireless network information of the core network from the first message received by the first receiving module; a first generating module, configured to generate second wireless network information according to an air interface protocol of the air interface between the access network and the user equipment, and the first wireless network information of the core network that is parsed by the first parsing module;

And a first sending module, configured to send the second wireless network information obtained by the first generating module to the user equipment by using an air interface between the access network and the user equipment.

With reference to the second aspect, in a first possible implementation manner of the second aspect, a network interface of the ground interface between the access network and the core network, and an air interface between the access network and the user equipment The network standard is inconsistent.

With reference to the second aspect, the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the first message received by the first receiving module further includes the core network First non-access stratum NAS information;

The first parsing module is further configured to: when a network standard of a ground interface between the access network and the core network is different from a network format of an air interface between the access network and the user equipment, Parsing the first NAS information of the core network from the first message received by the first receiving module; the first generating module is further configured to: according to the access network and the user equipment The air interface of the air interface converts the first NAS information of the core network parsed by the first parsing module into the second NAS information;

The first sending module is further configured to send the second NAS information obtained by the first generating module to the user equipment by using an air interface between the access network and the user equipment.

A third aspect provides an access network device, where the access network device includes:

a receiver, configured to receive, by using a ground interface between the access network and the core network, a first message sent by the core network, where the first message includes first wireless network information of the core network;

a processor, configured to parse the first wireless network information of the core network from the first message received by the receiver; according to an air interface protocol of the air interface between the access network and the user equipment, Generating, by the first wireless network information of the core network, second wireless network information;

And a transmitter, configured to send the second wireless network information obtained by the processor to the user equipment by using an air interface between the access network and the user equipment.

With reference to the third aspect, in a first possible implementation manner of the third aspect, a network interface of the ground interface between the access network and the core network, and an air interface between the access network and the user equipment The network standard is inconsistent.

In combination with the third aspect, the first possible implementation of the third aspect, the second In a possible implementation manner, the received first message further includes a first non-access stratum of the core network

NAS information;

The processor is further configured to: if a network standard of a ground interface between the access network and the core network is different from a network format of an air interface between the access network and the user equipment, Decoding out the first NAS information of the core network in the first message; converting the first NAS information of the core network into the second NAS information by using a network standard of the air interface between the access network and the user equipment The transmitter is further configured to send the second NAS information obtained by the processor to the user equipment by using an air interface between the access network and the user equipment.

In a fourth aspect, a method for inter-system interoperation is provided, the method comprising:

The access network device receives the second message sent by the user equipment by using an air interface between the access network and the user equipment, where the second message includes third wireless network information of the user equipment;

The access network device parses the third wireless network information of the user equipment from the second message;

The access network device generates fourth wireless network information according to an interface protocol of the ground interface between the access network and the core network and third wireless network information of the user equipment;

The access network device sends the fourth wireless network information to the core network through a ground interface between the access network and the core network.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, a network interface of the ground interface between the access network and the core network, and an air interface between the access network and the user equipment The network standard is inconsistent.

With reference to the fourth aspect, the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the second message further includes a third non-access stratum NAS of the user equipment Information; the method further includes:

If the network standard of the ground interface between the access network and the core network is different from the network format of the air interface between the access network and the user equipment, the access network device is from the second Parsing out the third NAS information of the user equipment in the message;

The access network device converts the third NAS information of the user equipment into the fourth NAS information according to the network system of the ground interface between the access network and the core network;

The access network device sends the fourth NAS information to the core network through a ground interface between the access network and the core network.

A fifth aspect provides an access network device, where the access network device includes: a second receiving module, configured to receive, by using an air interface between the access network and the user equipment, a second message sent by the user equipment, where the second message includes third wireless network information of the user equipment; And parsing, by the second message received by the second receiving module, the third wireless network information of the user equipment;

a second generating module, configured to generate fourth wireless network information according to an interface protocol of the ground interface between the access network and the core network, and third wireless network information of the user equipment that is parsed by the second parsing module ;

And a second sending module, configured to send the second wireless network information of the core network obtained by the second generating module to the core network by using a ground interface between the access network and the core network.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, a network interface of the ground interface between the access network and the core network, and an air interface between the access network and the user equipment The network standard is inconsistent.

With reference to the fifth aspect, the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the second message received by the second receiving module further includes the user equipment Third non-access stratum NAS information;

The second parsing module is further configured to: when a network standard of a ground interface between the access network and the core network is different from a network format of an air interface between the access network and the user equipment, Parsing third NAS information of the user equipment from the second message received by the second receiving module;

The second generating module is further configured to convert the third NAS information of the user equipment parsed by the second parsing module into a fourth according to a network format of the ground interface between the access network and the core network NAS information;

The second sending module is further configured to send the fourth NAS information obtained by the second generating module to the core network by using a ground interface between the access network and the core network.

A sixth aspect provides an access network device, where the access network device includes:

a receiver, configured to receive, by using an air interface between the access network and the user equipment, a second message sent by the user equipment, where the second message includes third wireless network information of the user equipment;

a processor, configured to parse the third wireless network information of the user equipment from the second message received by the receiver; according to an interface protocol and a ground interface between the access network and a core network Generating, by the third wireless network information of the user equipment, fourth wireless network information;

a transmitter, configured to send the processing by using a ground interface between the access network and the core network The fourth wireless network information obtained by the device is sent to the core network.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, a network interface of the ground interface between the access network and the core network, and an air interface between the access network and the user equipment The network standard is inconsistent.

With reference to the sixth aspect, the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the received second message further includes a third non-contact of the user equipment Incoming NAS information;

The processor is further configured to: if a network standard of a ground interface between the access network and the core network is different from a network format of an air interface between the access network and the user equipment, Decoding out the third NAS information of the user equipment in the second message; converting the third NAS information of the user equipment into the fourth network according to the network standard of the ground interface between the access network and the core network NAS information;

The transmitter is further configured to send, by using a ground interface between the access network and the core network, the fourth NAS information obtained by the processor to the core network.

In the embodiment of the present invention, the access network device generates the second wireless network information by sending the second wireless network information according to the air interface protocol of the air interface and the first wireless network information of the core network in the parsed first message. Generating, by the user equipment, the fourth wireless network information according to the interface protocol of the ground interface and the third wireless network information in the parsed second message, and sending the fourth wireless network information to the core network, completing the cross-system ground interface and At the same time, the air interface decoupling realizes the cross-system fusion, reduces the inter-system operation signaling and delays, and realizes the decoupling of the network interface between the NAS interface, the air interface and the ground interface, and forms a true multi-network standard fusion Single RAN. DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a flowchart of a first method for inter-system interoperation according to an embodiment of the present invention;

2 is a flow chart of a second method for inter-system interoperation according to another embodiment of the present invention; FIG. 3 is a schematic diagram of a process for inter-system interoperation according to another embodiment of the present invention; A third flow chart of a method for inter-system interoperation provided by an embodiment; FIG. 5 is a flowchart of a fourth method for inter-system interoperation according to another embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a first access network device according to another embodiment of the present invention; FIG. 7 is a schematic structural diagram of a second access network device according to another embodiment of the present invention. detailed description

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Embodiments of the present invention provide a method for inter-system interoperation, as shown in FIG. 1 , which is specifically described below.

The access network device receives the first message sent by the core network by using a ground interface between the access network and the core network, where the first message includes the first wireless network information of the core network.

102. The access network device parses the first wireless network information of the core network from the first message.

103. The access network device generates second wireless network information according to the air interface protocol of the air interface between the access network and the user equipment and the first wireless network information of the core network.

The access network device may be an access network logical entity having multiple network system processing capabilities. Therefore, the user equipment and the access network device may establish an air interface connection by using any network standard, that is, the access network and the user. The air interface between the devices may be any network standard. For example, it may be UMTS, or LTE, and is not limited herein.

104. The access network device sends the second wireless network information to the user equipment by using an air interface between the access network and the user equipment.

According to the method provided by the embodiment of the present invention, the access network device generates the second wireless network information by using the air interface protocol of the air interface and the first wireless network information of the core network in the parsed first message, and sends the second wireless network information. For the user equipment, when the cross-system ground interface and air interface decoupling are completed, the cross-system fusion is realized, the inter-system operation signaling delay is reduced, thereby realizing the decoupling of the network interface between the NAS interface, the air interface and the ground interface, forming a true Single RAN of the multi-network standard. Another embodiment of the present invention provides a method for inter-system interoperation. Referring to FIG. 2, the process of the method provided in this embodiment is specifically as follows:

The access network device receives the second message sent by the user equipment by using an air interface between the access network and the user equipment, where the second message includes the third wireless network information of the user equipment.

202. The access network device parses the third wireless network information of the user equipment from the second message.

203. An interface protocol and a user of the access network device according to the ground interface between the access network and the core network The third wireless network information of the device generates fourth wireless network information.

204. The access network device sends the fourth wireless network information to the core network through a ground interface between the access network and the core network.

In summary, the method provided by the embodiment of the present invention, the access network device generates the fourth wireless network information by using the interface protocol according to the ground interface and the third wireless network information in the parsed second message, and the fourth wireless The network information is sent to the core network, and the cross-system fusion is realized at the same time as the cross-system ground interface and air interface decoupling are realized, and the inter-system operation signaling delay is reduced, thereby realizing the network system decoupling between the NAS interface, the air interface and the ground interface. A method for forming a true multi-network system merging In order to more clearly explain a cross-system interoperation method provided by the foregoing embodiment, combined with the content of the foregoing embodiment, the following embodiment is taken as an example, and a cross-system interoperation is performed. The method is described in detail, as shown in the following examples. Another embodiment of the present invention provides a method for inter-system interoperation. For convenience of description, the core network device shown in FIG. 3 is used as the MME (Mobility Management Entity) in the core network. The network standard of the network is an LTE network, and the access network device is an access network logical entity having multiple network system processing capabilities. Specifically, it may be an SRC (Single Radio Controller), an access network, and a user equipment. The network interface between the air interface is a UMTS network, and the ground interface between the SRC and the MME is an S1 interface of the LTE network standard. The air interface between the SRC and the UE is a Uu interface of the UMTS network standard, and the method provided in this embodiment is used as an example. Detailed instructions are given. The SRC is an access network device with multiple network system processing capabilities, so that the SRC can receive the first message after receiving the first message sent by the core network from the ground interface between the access network and the core network. The first wireless network information of the core network in the middle network is configured to conform to the second wireless network information of the air interface protocol of another network standard, and the first NAS of the core network in the received first message (Non Access Stratum, non-connected) The information of the ingress layer is converted into the second NAS information conforming to another network standard, thereby realizing the decoupling of the network standard between the air interface and the ground interface, and forming a true multi-network system splicing Single RAN. Referring to FIG. 4, the process of the method provided in this embodiment is specifically as follows:

401. The access network device receives the first message sent by the core network by using a ground interface between the access network and the core network, where the first message includes the first wireless network information of the core network.

For this step, the receiving manner of the first message sent by the receiving core network is not specifically limited in this embodiment, and the number of the first messages sent is multiple, including but not limited to using batch processing. The way to receive a message, or the way to receive a message all at once.

For example, the first message is an E-RAB (Enhanced Radio Access Bearer) assignment request. Referring to FIG. 3, the SRC receives all the MMEs through the ground interface between the SRC and the MME. E-RAB SETUP REQUEST. Of course, for the case where the number of the first message is multiple, the first message sent by the MME may also be received in batches through the terrestrial interface between the SRC and the MME.

It should be noted that, in this embodiment and the following embodiments, the core network device, the access network device, or the user equipment may send a response message to the sending device of the message while processing the received message. The process of sending and processing a response message is not described in this embodiment. For example, after the SRC receives the E-RAB SETUP REQUEST sent by the MME from the ground interface between the SRC and the MME, the SRC sends an E-RAB SETUP RESPONSE message to the MME, and responds to the establishment request. The message is not specifically described in this embodiment.

In addition, the first message in this embodiment and the subsequent embodiments refers to a message that needs to be performed in an air interface process, or information that needs to be performed in an air interface process, and is not limited to an access network process. The messages processed between the core networks, or the messages that do not include the air interface process information, are not described in this embodiment.

402. The access network device determines whether the first NAS information of the core network is included in the first message. If not, step 406 is directly performed; otherwise, step 403 is performed.

For this step, the determining method for determining whether the first NAS of the core network is included in the first message is not specifically limited. For example, the first message may be parsed to determine whether the first message includes the first NAS information of the core network. The first message may also be determined by determining the length of the first message to determine whether the first message contains the first NAS information of the core network.

Optionally, the first message may further include a message cell indicating a network standard of the core network, and the user equipment may determine, according to the enumerated value of the message cell, a network standard of the first NAS information of the core network, for example, 0 represents GSM. (Global System of Mobile Communication, Global System for Mobile Communication), 1 stands for UMTS, 2 stands for LTE, etc. Here, the correspondence between the enumerated value and the system is not limited, and the correspondence between the enumerated value and the system can be changed at any time.

Specifically, in FIG. 3, the SRC parses the E-RAB SETUP REQUEST to determine whether the E-RAB SETUP REQUEST contains the NAS information of the core network.

403. The access network device determines whether the network standard of the ground interface between the access network and the core network is the same as the network standard of the air interface between the access network and the user equipment. If they are consistent, the steps are directly performed. 406. If not, perform step 404.

For this step, because the network standard of the ground interface between the access network and the core network and the network standard of the air interface between the access network and the user equipment are recorded in the access network, the access network device can be based on the recorded ground. The network standard of the interface determines the network standard of the core network. At the same time, the access network device can determine the network standard of the user equipment according to the network format of the recorded air interface, and further determine whether the network standard of the ground interface and the network standard of the air interface are consistent.

Specifically, the SRC in Figure 3 is based on the network format of the ground interface between the recorded SRC and the core network, and the network format of the air interface between the LTE and the UE and the SRC is UMTS, and the network interface of the ground interface is inconsistent with the air interface.

Optionally, when the first message includes a message cell indicating a network standard of the core network, the access network device may further determine a network standard of the core network according to the message cell.

404. The access network device parses the first NAS information of the core network from the first message.

For this step, the method for parsing the first NAS information of the core network from the first message is not limited, including but not limited to decapsulating the first message, and decoding the core in the first message. The first NAS information of the network.

Specifically, still taking FIG. 3 as an example, the SRC decodes the E-RAB SETUP REQUEST, and parses out the first NAS information of the core network as an LTE NAS, and specifically may activate an EPS (Evloved Packet System). Activate dedicated EPS bearer context request information.

405. The access network device converts the first NAS information of the core network into the second NAS information according to the network standard of the air interface between the access network and the user equipment.

The method for converting the first NAS information of the parsed core network into the second NAS information is not specifically limited. For example, the parameters related to the network standard in the first NAS information of the core network are changed to users. The parameters corresponding to the device network standard can of course be converted in other ways.

The second NAS information belongs to the network standard of the air interface, and the air interface network standard is a network standard supported by the user equipment, for example, a network system that can be used by the user equipment for the current service.

Specifically, still taking FIG. 3 as an example, the SRC converts the first NAS information of the core network that has been parsed in step 404: LTE NAS: Activate dedicated EPS bearer context request information into a UMTS NAS: Requests a second PDP (Packet Data Protocol) , packet data protocol) context Request Secondary PDP Context Activation information.

406. The access network device parses the first wireless network information of the core network from the first message.

For this step, the method for parsing the first wireless network information of the core network from the first message is not specifically limited, including but not limited to decapsulating the first message, and decoding the first message. The first wireless network information of the core network. The specific content of the first wireless network information of the core network is not limited in this embodiment, and may be, for example, voice data, data size, and the like.

Specifically, still taking FIG. 3 as an example, the SRC decodes the E-RAB SETUP REQUEST message, and parses out the first wireless network information of the core network in the E-RAB assignment request.

407. The access network device generates second wireless network information according to the air interface protocol of the air interface between the access network and the user equipment and the first wireless network information of the core network.

For this step, since the network standard of the air interface between the access network and the user equipment is recorded in the access network, the access network is based on the air interface protocol of the air interface between the recorded access network and the user equipment and the first of the core network. The wireless network information generates the second wireless network information, for example, the access network device generates the air interface protocol according to the air interface protocol of the air interface between the access network and the user equipment, and the radio bearer parameter in the first wireless network information of the core network. The radio bearer parameters are used to obtain the second radio network information, such as the radio bearer parameters such as the delay and the rate, and the radio bearer parameters of the corresponding air interface are generated, and the second radio network information is obtained, and other parameters may be generated, which are not specifically limited herein.

Specifically, the network format of the air interface between the SRC and the UE in the SRC in FIG. 3 is recorded in the UMTS network, so the SRC is based on the UMTS network air interface protocol and the E-RAB assignment request message of the air interface between the recorded SRC and the UE. The radio bearer parameter of the first radio network information of the core network generates a radio bearer parameter of the UMTS air interface, and obtains the second radio network information.

In addition, the network standard of the air interface between the access network and the user equipment and the network interface of the ground interface between the access network and the core network may be any network standard, for example, may be a GSM network or a UMTS network. It is either an LTE network or another network standard. If the network standard of the air interface between the access network and the user equipment is the same as the network interface of the ground interface between the access network and the core network, the access network device may directly according to the recorded air interface between the access network and the user equipment. The air interface protocol and the first wireless network information of the core network in the first message generate second wireless network information; if the air interface between the access network and the user equipment is a network interface and a ground interface between the access network and the core network The network system is different. The access network device can map the interface protocol of the ground interface between the access network and the core network into multiple air interface protocols of different air interfaces between the access network and the user equipment. For example, mapping the interface protocol of one type of ground interface with the air interface protocol of three air interfaces, or implementing two kinds of ground The interface protocol of the interface is mapped to the air interface protocol of the three air interfaces, or the interface protocol of the three ground interfaces is mapped to the air interface protocol of the three air interfaces. The access network device uses the multi-protocol mapping capability to access the network. The interface protocol of the ground interface with the core network is mapped to the air interface protocol of the air interface between the access network and the user equipment, according to the air interface protocol between the air interface between the access network and the user equipment, and the core network in the first message. The first wireless network information generates second wireless network information.

Specifically, the network standard of the UE in FIG. 3 is a UMTS network, the network standard of the MME is an LTE network, and the interface protocol of the ground interface between the SRC and the MME is an LTE network interface protocol, and the SRC uses the multi-protocol mapping capability to the ground interface. The LTE network ground interface protocol is mapped to the UMTS network air interface protocol of the air interface between the SRC and the UE, and the SRC is based on the UMTS network air interface protocol between the SRC and the UE and the first wireless network information of the core network in the E-RAB assignment request message. The air interface radio bearer parameter generates a radio bearer parameter of the UMTS network air interface protocol, and obtains the second radio network information.

It should be noted that with the development of communication technologies, if a new network standard different from the existing network standard is generated, or a new network standard compatible with various existing network standards is generated, the access network and the core network may be The network interface of the ground interface is fixed to the new network standard. The interface protocol of the ground interface between the access network and the core network of the access network device is mapped to the multi-protocol mapping capability of the air interface protocol of the different interfaces of the air interface between the access network and the user equipment, and is converted into a ground type. The interface protocol of the interface and the one-to-many protocol mapping capability of the air interface protocol mapping. The access network device ensures that the evolution of the air interface network standard does not affect the evolution of the ground interface through the one-to-many protocol mapping capability, and truly implements the ground interface and the air interface. Interpretation.

408. The access network device sends the second wireless network information and the second NAS information to the user equipment by using an air interface between the access network and the user equipment.

For this step, if it is determined in step 402 that the received first message does not contain the first NAS information of the core network, this step is to send the second wireless network information; if step 402 determines that the received first message contains the core network The first NAS information, but the 403 step determines the network standard of the ground interface between the access network and the core network and the network standard of the air interface between the access network and the user equipment, and the core network included in the first message at this time The first NAS information does not need to be converted into a network system. Therefore, the step may be to pass the second wireless network information and the first NAS information of the core network included in the received first message to the access network and the user equipment. The air interface between the two is sent to the user equipment.

In addition, in this embodiment, the second wireless network information and the second NAS information are not limited. For example, the second wireless network information and the second NAS information may be formed into a message, and the message is sent to the user equipment through the air interface. Or forming a second wireless network message into a message, second The NAS information forms another message, and two messages are sent separately. This embodiment does not specifically limit the manner in which the message is formed. For example, the information may be encoded to form a message.

Specifically, still taking FIG. 3 as an example, the SRC encapsulates the second wireless network information in a UMTS: RADIO BEARER SETUP message to form a first message; and the second NAS information UMTS NAS: Request Secondary PDP Context Activation The information is encoded and encapsulated in a UMTS: DOWNLINK DIRECT TRANSFER message to form a second message. Of course, if the received first message does not include the first NAS information of the core network, the SRC directly encapsulates the second wireless network information in a UMTS: RADIO BEARER SETUP message to form a message; or if the received first message includes a core The NAS information of the network, but the network standard of the ground interface between the access network and the core network is consistent with the network standard of the air interface between the access network and the UE, and the SRC will use the second wireless network information and the core network in the first message. The first NAS information is encapsulated into a message.

In addition, for sending a message that is sent between the access network and the user equipment, after the first message is sent by the access network device, the user equipment returns a response message, and then sends a second message, which in turn The analogy may be used to send a plurality of messages in other manners, which is not specifically limited in this embodiment.

Specifically, in Figure 3, the SRC sends the first message UMTS: RADIO BEARER SETUP, after receiving the first message success response message UMTS sent by the UE: RADIO BEARER COMPLETE, SRC again Send the second message UMTS: DOWNLINK DIRECT TRANSFER. After sending the second message, the SRC will receive the second message success response message UMTS: UPLINK DIRECT TRANSFER sent by the UE. At this time, the SRC sends the first message to the MME. The core network successfully responds to the message LTE E-RAB Setup Response message (LTE E-RAB SETUP RESPONSE). If the SRC sends the first message, and receives the message failure response message UMTS: RADIO BEARER FAILURE sent by the UE, the subsequent message transmission is stopped, and the SRC sends the first message to the MME. The core network failure response message LTE E-RAB Setup Failure Response message (LTE E-RAB SETUP RESPONSE) is sent.

It should be noted that, in the cross-system interoperation diagram provided in FIG. 3, the user equipment may be a single user equipment or multiple user equipments. The core of the cross-system interoperation diagram provided in FIG. 3 is used in this embodiment. The network standard of the network is not specifically limited, and may be, for example, an LTE network, a GSM network, or a UMTS network, or other network standards, a core network and an access network. The network format of the ground interface is not limited. The network format of the air interface between the access network and the user equipment in the cross-system interoperation diagram provided in FIG. 3 is not specifically limited. For example, the LTE network may be used. It can also be a GSM network, or a UMTS network, or other network standard.

In summary, the method provided by the embodiment of the present invention, the access network device generates the second wireless network information according to the air interface protocol of the air interface and the first wireless network information of the core network parsed in the first message by receiving the first message. And sending, when the cross-system ground interface and air interface decoupling are completed, the cross-system fusion is realized, the inter-system operation signaling delay is reduced, thereby realizing the decoupling of the network interface between the NAS interface, the air interface and the ground interface, forming a true Single RAN with multiple network standards. Another embodiment of the present invention provides a method for inter-system interoperation. For convenience of description, the core network device shown in FIG. 3 is the MME in the core network, and the network standard is LTE network. The network device is an access network logical entity having multiple network system processing capabilities. Specifically, it may be an SRC. The network interface between the access network and the user equipment is a UMTS network, and the ground interface between the SRC and the MME is For the S1 interface of the LTE network standard, the Uu interface of the UMTS network standard is used as an example for the air interface between the SRC and the UE. The method provided in this embodiment is described in detail. The SRC is an access network device that has a plurality of network system processing capabilities, so that the SRC can receive the second message after receiving the second message sent by the user equipment from the air interface between the access network and the user equipment. The third wireless network information of the user equipment is configured to conform to the fourth wireless network information of the interface protocol of the ground interface of another network standard, and convert the third NAS information of the user equipment in the received second message into conforming to another A fourth NAS information of the network standard, thereby realizing decoupling of the network standard between the air interface and the ground interface, forming a true multi-network system splicing Single RAN. Referring to FIG. 5, the process of the method provided in this embodiment is specifically as follows:

501. The access network device receives the second message sent by the user equipment by using an air interface between the access network and the user equipment, where the second message includes third wireless network information of the user equipment.

For this step, the receiving manner of the second message sent by the user equipment is not specifically limited in this embodiment. For the case of sending multiple second messages, the method includes, but is not limited to, receiving the message in batches, or adopting one-time The way all messages are received.

Specifically, taking the second message as the initial direct transmission message as an example, referring to FIG. 3, the SRC receives all the UMTS: INITIAL DIRECT TRANSFER sent by the user equipment through the air interface between the SRC and the UE, of course, The number of the second message is multiple. The second message sent by the user equipment may also be received in batches through the air interface between the SRC and the UE. 502. The access network device determines whether the third NAS information of the user equipment is included in the second message. If not, directly performing 506. Otherwise, performing step 503.

In this embodiment, the method for determining whether the third NAS of the user equipment is included in the second message is not specifically limited. For example, the second message may be parsed to determine whether the second message includes the third NAS information of the user equipment. It is determined by other means whether the second message contains the third NAS information of the user equipment.

In addition, the received second message includes a message cell that represents the user equipment network standard, and the core network device can determine the network format of the third NAS of the user equipment according to the correspondence between the enumerated values of the message cells in the second message. For example, 0 represents GSM, 1 represents UMTS, 2 represents LTE, etc., and the correspondence between the enumerated value and the system is not limited, and the correspondence between the enumerated value and the system can be changed at any time.

Specifically, in FIG. 3, the SRC parses the UMTS: INITIAL DIRECT TRANSFER message, and determines whether the message contains the UMTS NAS information of the UE.

503. The access network device determines whether the network standard of the ground interface between the access network and the core network is consistent with the network format of the air interface between the access network and the user equipment. If they are consistent, step 506 is directly performed. Then step 504 is performed.

For this step, since the network standard of the terrestrial interface and the network standard of the air interface are recorded in the access network, the access network device determines the ground interface according to the recorded network standard of the terrestrial interface and the network standard of the air interface. Is the network standard of the network standard and the air interface consistent?

Specifically, the SRC in FIG. 3 determines that the ground interface is inconsistent with the network format of the air interface according to the recorded network format of the ground interface, and the network format of the air interface is the UMTS network.

504. The access network device parses the third NAS information of the user equipment from the second message.

For this step, the embodiment does not specifically determine the parsing manner of the third NAS information of the user equipment from the second message, including but not limited to decapsulating the second message, and obtaining the user in the second message by decoding. The third NAS information of the device.

Specifically, in FIG. 3, the SRC decodes the UMTS: INITIAL DIRECT TRANSFER and parses the third NAS information UMTS NAS of the UMTS network: Attach Request information.

505. The access network device converts the third NAS information of the user equipment into the fourth NAS information according to the network standard of the ground interface between the access network and the core network.

The network standard of the ground interface between the access network and the core network is a type supported by the core network. The network system does not specifically limit the manner in which the third NAS information of the parsed user equipment is converted into the fourth NAS information. For example, the parameter related to the network standard in the third NAS information of the user equipment is changed into a core. The parameters corresponding to the network standard of the network can of course be converted in other ways.

Specifically, still taking FIG. 3 as an example, the SRC converts the third NAS information UMTS NAS: Attach Request information of the user equipment that has been parsed in step 504 into LTE NAS: Attach Request information.

506. The access network device parses the third wireless network information of the user equipment from the second message. For this step, the method for parsing the third wireless network information of the user equipment from the second message is not specifically limited, including but not limited to decapsulating the second message, and obtaining the second message by decoding. The third wireless network information of the core network. The specific content of the third wireless network information of the user equipment is not limited in this embodiment, and may be, for example, voice data, data size, and the like.

Specifically, still taking FIG. 3 as an example, the SRC decodes the UMTS: INITIAL DIRECT TRANSFER message and parses the third wireless network information of the UMTS network INITIAL DIRECT TRANSFER message.

507. The access network device generates fourth wireless network information according to an interface protocol of a ground interface between the access network and the core network and third wireless network information of the user equipment.

For this step, since the network standard of the terrestrial interface between the access network and the core network is recorded in the access network, the access network is based on the recorded interface protocol of the ground interface between the access network and the core network and the user equipment. The third wireless network information generates fourth wireless network information, for example, the access network device generates a ground interface according to an interface protocol of a ground interface between the access network and the core network, and a radio bearer parameter in the third wireless network information of the user equipment. The radio bearer parameter corresponding to the interface protocol obtains the fourth radio network information, for example, the radio bearer parameters such as the delay and the rate are generated to generate the radio bearer parameters of the corresponding terrestrial interface, to obtain the fourth radio network information, and of course, other parameters may also be generated. No specific limitation.

Specifically, the network format of the ground interface between the SRC and the MME in the SRC in FIG. 3 is recorded in the LTE network, so the SRC is based on the interface protocol of the ground interface of the LTE network between the SRC and the MME and the INITIAL DIRECT TRANSFER message. The radio bearer parameter in the third radio network information of the UE generates a radio bearer parameter of the LTE terrestrial interface, to obtain fourth radio network information.

In addition, the network standard of the ground interface between the access network and the core network and the air interface between the access network and the user equipment may each be any network standard, for example, may be a GSM network or a UMTS network. Or an LTE network. If the network interface of the ground interface and the empty The network system of the interface is the same. The access network device can directly generate the fourth wireless network information according to the interface protocol of the ground interface between the recorded access network and the core network and the third wireless network information of the user equipment in the second message. If the network standard of the ground interface is different from the network format of the air interface, the access network device may map the air interface protocol between the access network and the user equipment to the ground between the access network and the core network of multiple network standards. Interface protocol of the interface. For example, the mapping between the air interface protocol of one type of air interface and the interface protocol of the three ground interfaces, or the mapping of the air interface protocol of the two air interfaces and the interface protocol of the three ground interfaces, or the air interface protocol of three air interfaces and three types of air interface protocols The interface protocol of the ground interface, the access network device maps the air interface protocol between the access network and the user equipment to the interface protocol between the access network and the core network through the multi-protocol mapping capability. The interface protocol of the ground interface between the network and the core network and the third wireless network information of the user equipment in the second message generate fourth wireless network information.

Specifically, the network standard of the UE in FIG. 3 is a UMTS network, and the network format of the MME is an LTE network. The SRC maps the air interface protocol of the UMTS network between the SRC and the UE to the SRC and the MME through the multi-protocol mapping capability. LTE network ground interface protocol of the ground interface, the SRC generates an LTE network ground interface protocol according to the LTE network ground interface protocol between the SRC and the MME and the terrestrial interface radio bearer parameters in the third wireless network information of the UE in the INITIAL DIRECT TRANSFER message The wireless bearer parameters obtain the fourth wireless network information.

It should be noted that with the development of communication technologies, if a new network standard different from the existing network standard is generated, or a new network standard compatible with various existing network standards is generated, the access network and the core network may be The network interface of the ground interface is fixed to the new network standard. The air interface protocol of the air interface between the access network and the user equipment of the access network device is mapped to the multi-protocol mapping capability of the interface protocol of the ground interface between the access network of the plurality of network standards and the core network, and is transformed into multiple air interfaces. The multi-to-one protocol mapping capability of the protocol and the interface protocol mapping of the ground interface, the access network device ensures the evolution of the air interface network system without affecting the evolution of the ground interface, and truly implements the ground interface and the air interface. Decoupling.

508. The access network device sends the fourth wireless network information and the fourth NAS information to the core network through a ground interface between the access network and the core network.

For this step, if it is determined by step 502 that the received second message does not contain the third NAS information of the user equipment, this step is to send the fourth wireless network information; if step 502 determines that the received second message contains the user equipment Third NAS information, but step 503 determines the network format of the air interface between the access network and the user equipment and the network interface of the ground interface between the access network and the core network The third NAS information of the user equipment included in the second message does not need to be converted into a network standard. Therefore, the step is to use the fourth wireless network information and the user equipment included in the received second message. The third NAS information is sent to the core network through a terrestrial interface between the access network and the core network.

In addition, in this embodiment, the manner of sending the fourth wireless network information and the fourth NAS information is not limited. For example, the fourth wireless network information and the fourth NAS information may form a message, and the message is sent to the core network through the ground interface. Or forming a fourth wireless network message into a message, fourth

The NAS information forms another message, and two messages are sent separately. This embodiment does not specifically limit the manner in which the message is formed. For example, the information may be encoded to form a message.

Specifically, still taking FIG. 3 as an example, the SRC encodes the LTE NAS: Attach Request information and the fourth wireless network information, and encapsulates a message in the LTE: INITIAL UE MESSAGE. Of course, if the received second message does not include the third NAS information of the UE, the SRC encapsulates the fourth wireless network information into a message; or if the received second message includes the third NAS information of the UE, but the SRC and the UE The air interface between the air interface and the network standard of the ground interface between the SRC and the core network are the same, and the SRC encapsulates the fourth wireless network information and the received third NAS information of the UE into one message.

In summary, the method provided by the embodiment of the present invention, the access network device generates the fourth wireless network information according to the third wireless network information of the user equipment that is parsed in the second message of the interface protocol of the ground interface by receiving the second message. And sending, when the cross-system ground interface and air interface decoupling are completed, the cross-system fusion is realized, the inter-system operation signaling delay is reduced, thereby realizing the decoupling of the network interface between the NAS interface, the air interface and the ground interface, forming a true Single RAN with multiple network standards.

It should be noted that the foregoing embodiment shown in FIG. 1 is specifically a cross-system transmission method for downlink messages, and the embodiment shown in FIG. 2 is specifically a cross-system transmission method for uplink messages, and the access network device can simultaneously implement FIG. 1 and FIG. 2 . For the embodiment shown, the embodiments shown in FIG. 4 and FIG. 5 can also be implemented by the same access network device, and are not limited herein.

Another embodiment of the present invention provides an access network device, which is used to implement the method for implementing inter-system interoperation provided by the foregoing embodiment of FIG. Referring to Figure 6, the access network device includes:

The first receiving module 601 is configured to receive, by using a ground interface between the access network and the core network, a first message sent by the core network, where the first message includes the first wireless network information of the core network.

The first parsing module 602 is configured to parse the first wireless network information of the core network from the first message received by the first receiving module 601.

The first generation module 603 is configured to use an air interface protocol according to an air interface between the access network and the user equipment. The first wireless network information of the core network parsed by the first parsing module 602 generates second wireless network information.

The first sending module 604 is configured to send the second wireless network information obtained by the first generating module 603 to the user equipment by using an air interface between the access network and the user equipment.

Further, the access network device is further configured to perform the method for implementing inter-system interoperation provided by the foregoing embodiment shown in FIG. 4, where the first message received by the first receiving module 601 further includes the first NAS information of the first network. ;

The first parsing module 602 is further configured to receive, when the network format of the terrestrial interface between the access network and the core network and the network format of the air interface between the access network and the user equipment are inconsistent, received from the first receiving module 601. The first NAS information of the core network is parsed in the first message.

The first generation module 603 is further configured to convert the first NAS information of the core network parsed by the first parsing module 602 into the second NAS information according to the network standard of the air interface between the access network and the user equipment.

The first sending module 604 is further configured to send the second NAS information generated by the first generating module 603 to the user equipment by using an air interface between the access network and the user equipment.

In summary, in the device provided by the embodiment of the present invention, the access network device generates the second wireless network information according to the air interface protocol of the air interface and the first wireless network information of the core network parsed in the first message by receiving the first message. And sending, when the cross-system ground interface and air interface decoupling are completed, the cross-system fusion is realized, the inter-system operation signaling delay is reduced, thereby realizing the decoupling of the network interface between the NAS interface, the air interface and the ground interface, forming a true Single RAN with multiple network standards. Another embodiment of the present invention provides an access network device, which is used to implement the method for implementing inter-system interoperation provided by the embodiment shown in FIG. 2 above. Referring to FIG. 7, the access network device includes: a second receiving module 701, configured to receive, by using an air interface between the access network and the user equipment, a second message sent by the user equipment, where the second message includes the third wireless of the user equipment. Internet Information.

The second parsing module 702 is configured to parse the third wireless network information of the user equipment from the second message received by the second receiving module 701.

The second generation module 703 is configured to generate a fourth wireless network according to the interface protocol of the ground interface between the access network and the core network and the third wireless network information of the user equipment that is parsed by the second parsing module 702. Information.

The second sending module 704 is configured to send the fourth wireless network information obtained by the second generating module 703 to the core network by using a ground interface between the access network and the core network.

Further, the access network device is further configured to perform the method for implementing inter-system interoperation provided by the foregoing embodiment shown in FIG. 5, where the second message received by the second receiving module 701 further includes third NAS information of the user equipment;

The second parsing module 702 is further configured to: when the network standard of the ground interface between the access network and the core network and the network format of the air interface between the access network and the user equipment are inconsistent, received from the second receiving module 701 The third NAS information of the user equipment is parsed in the second message.

The second generation module 703 is further configured to generate fourth NAS information according to the interface protocol of the ground interface between the access network and the core network and the third NAS information of the user equipment parsed by the second parsing module 702.

The second sending module 704 is further configured to send, by using a ground interface between the access network and the core network, the fourth NAS information obtained by the second generating module 703 to the core network.

In summary, the device provided by the embodiment of the present invention, the access network device generates the fourth wireless network according to the interface protocol of the ground interface and the third wireless network information of the user equipment that is parsed in the second message by receiving the second message. Information and transmission, while implementing cross-system ground interface and air interface decoupling, realize cross-system convergence, reduce inter-system operation signaling and delay, thereby realizing network system decoupling between NAS interface, air interface and ground interface, forming true Single RAN of the multi-network standard. Another embodiment of the present invention provides an access network device, which is used to perform the method embodiment shown in FIG. 1. The access network device includes:

The receiver is configured to receive, by using a ground interface between the access network and the core network, a first message sent by the core network, where the first message includes the first wireless network information of the core network.

a processor, configured to parse the first wireless network information of the core network from the first message received by the receiver; generate an air interface according to the air interface between the access network and the user equipment, and generate the first wireless network information of the core network Second wireless network information.

And a transmitter, configured to send the second network information obtained by the processor to the user equipment by using an air interface between the access network and the user equipment.

Further, the access network device may be further configured to perform the steps of the embodiment shown in FIG. 4, where the received first message further includes the first NAS information of the core network, the processor, and the access network and the core. The network standard of the ground interface between the networks and the network interface between the access network and the user equipment are not Consistently, parsing the first NAS information of the core network from the first message; converting the first NAS information of the core network into the second NAS information according to the network standard of the air interface between the access network and the user equipment.

The transmitter is further configured to send the second NAS information of the user equipment obtained by the processor to the user equipment by using an air interface between the access network and the user equipment.

In the device provided by the embodiment, the access network device generates the second wireless network information according to the air interface protocol of the air interface and the first wireless network information of the core network that is parsed in the first message, and sends the second wireless network information. When the system ground interface and the air interface are decoupled, the cross-system fusion is realized, and the inter-system operation signaling and delay are reduced, thereby realizing the decoupling of the network interface between the NAS interface, the air interface and the ground interface, and forming a true multi-network standard fusion Single. RAN. Another embodiment of the present invention provides an access network device, which is configured to perform the steps of the embodiment shown in FIG. 2, where the access network device includes:

The receiver is configured to receive, by using an air interface between the access network and the user equipment, a second message sent by the user equipment, where the second message includes third wireless network information of the user equipment.

a processor, configured to parse the third wireless network information of the user equipment from the second message received by the receiver; generate an interface protocol according to the ground interface between the access network and the core network, and generate third wireless network information of the user equipment Fourth wireless network information.

And a transmitter, configured to send fourth wireless network information obtained by the processor to the core network through a ground interface between the access network and the core network.

Further, the device is further configured to perform the steps of the embodiment shown in FIG. 5, where the received second message further includes third NAS information of the user equipment, and the processor is further configured to be used between the access network and the core network. The network standard of the ground interface and the network format of the air interface between the access network and the user equipment are inconsistent, and the third NAS information of the user equipment is parsed from the second message; the network according to the ground interface between the access network and the core network The system converts the third NAS information of the user equipment into the fourth NAS information.

The transmitter is further configured to send the fourth NAS information obtained by the processor to the core network through a ground interface between the access network and the core network.

In summary, the device provided by the embodiment of the present invention, the access network device receives the second message, according to the interface protocol of the ground interface and the third wireless network information of the user equipment that is parsed in the second message. Generating the fourth wireless network information and transmitting, achieving cross-system convergence while completing cross-system ground interface and air interface decoupling, reducing inter-system operation signaling and delay, thereby implementing network standard between NAS interface, air interface and ground interface Decoupling, forming a true multi-network standard integration of the Single RAN. It should be noted that: the apparatus and device for inter-system interoperation provided by the foregoing embodiments are only illustrated by the division of the foregoing functional modules when implementing cross-system interoperation. In actual applications, the foregoing functions may be allocated according to requirements. It is completed by different functional modules, that is, the internal structure of the device and the device are divided into different functional modules to complete all or part of the functions described above. In addition, the device and device for inter-system interoperation provided by the foregoing embodiments are the same as the method for implementing inter-system interoperation. The specific implementation process is described in detail in the method embodiment, and details are not described herein again.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

A person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium. The storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are within the spirit and scope of the present invention, should be included in the scope of the present invention. Inside.

Claims

claims

1. A cross-system interoperability method, characterized in that the method includes:

The access network device receives the first message sent by the core network through the ground interface between the access network and the core network, where the first message includes the first wireless network information of the core network;

The access network device generates second wireless network information based on the air interface protocol of the air interface between the access network and the user equipment and the first wireless network information of the core network;

The access network device sends the second wireless network information to the user equipment through an air interface between the access network and the user equipment.

2. The method according to claim 1, characterized in that: the network standard of the ground interface between the access network and the core network and the network standard of the air interface between the access network and the user equipment Inconsistent.

3. The method according to claim 1 or 2, characterized in that the first message also includes the first non-access layer NAS information of the core network; the method further includes:

If the network standard of the ground interface between the access network and the core network is inconsistent with the network standard of the air interface between the access network and the user equipment, the access network equipment starts from the first The first NAS information of the core network is parsed from the message;

The access network device sends the second NAS information to the user equipment through the air interface between the access network and the user equipment.

4. An access network device, characterized in that, the access network device includes:

The first receiving module is configured to receive the first message sent by the core network through the ground interface between the access network and the core network, where the first message contains the first wireless network information of the core network;

A first parsing module, configured to parse the first wireless network information of the core network from the first message received by the first receiving module; A first generating module configured to generate second wireless network information based on the air interface protocol of the air interface between the access network and the user equipment and the first wireless network information of the core network parsed by the first parsing module;

The first sending module is configured to send the second wireless network information obtained by the first generating module to the user equipment through the air interface between the access network and the user equipment.

5. The method according to claim 4, characterized in that the network standard of the ground interface between the access network and the core network is inconsistent with the network standard of the air interface between the access network and the user equipment.

6. The access network device according to claim 4 or 5, characterized in that, the first message received by the first receiving module also includes the first non-access layer NAS information of the core network;

The first parsing module is also configured to: when the network standard of the ground interface between the access network and the core network is inconsistent with the network standard of the air interface between the access network and the user equipment, The first NAS information of the core network is parsed from the first message received by the first receiving module; the first generating module is also configured to analyze the relationship between the access network and the user equipment. Convert the first NAS information of the core network parsed by the first parsing module into the second NAS information according to the network standard of the air interface;

The first sending module is further configured to send the second NAS information obtained by the first generating module to the user equipment through the air interface between the access network and the user equipment.

7. An access network device, characterized in that, the access network device includes:

A receiver, configured to receive the first message sent by the core network through the ground interface between the access network and the core network, where the first message contains the first wireless network information of the core network;

A processor, configured to parse the first wireless network information of the core network from the first message received by the receiver; according to the air interface protocol of the air interface between the access network and the user equipment and the The first wireless network information of the core network generates the second wireless network information;

A transmitter, configured to send the second network information obtained by the processor to the user equipment through the air interface between the access network and the user equipment.

8. The access network equipment according to claim 7, characterized in that: between the access network and the core network The network standard of the ground interface between the access network and the user equipment is inconsistent with the network standard of the air interface between the access network and the user equipment.

9. The access network device according to claim 7 or 8, wherein the first message also includes the first non-access layer NAS information of the core network;

The processor is also configured to: if the network standard of the ground interface between the access network and the core network is inconsistent with the network standard of the air interface between the access network and the user equipment, The first NAS information of the core network is parsed from the first message; and the first NAS information of the core network is converted into second NAS information according to the network standard of the air interface between the access network and the user equipment. ;

The transmitter is further configured to send the second NAS information obtained by the processor to the user equipment through the air interface between the access network and the user equipment.

10. A cross-system interoperability method, characterized in that the method includes:

The access network device receives the second message sent by the user equipment through the air interface between the access network and the user equipment, where the second message includes the third wireless network information of the user equipment;

The access network device generates fourth wireless network information based on the interface protocol of the ground interface between the access network and the core network and the third wireless network information of the user equipment;

11. The method according to claim 10, characterized in that the network standard of the ground interface between the access network and the core network is inconsistent with the network standard of the air interface between the access network and the user equipment.

12. The method according to claim 10 or 11, wherein the second message further includes the third non-access layer NAS information of the user equipment; the method further includes:

If the network standard of the ground interface between the access network and the core network is inconsistent with the network standard of the air interface between the access network and the user equipment, the access network device switches from the second The message parses out the third NAS information of the user equipment; The access network device converts the third NAS information of the user equipment into fourth NAS information according to the network standard of the terrestrial interface between the access network and the core network;

13. An access network device, characterized in that, the access network device includes:

The second receiving module is configured to receive the second message sent by the user equipment through the air interface between the access network and the user equipment, where the second message contains the third wireless network information of the user equipment;

A second parsing module, configured to parse the third wireless network information of the user equipment from the second message received by the second receiving module;

The second generation module is configured to generate a fourth wireless network based on the network standard of the terrestrial interface between the access network and the core network and the third wireless network information of the user equipment parsed by the second parsing module. information;

The second sending module is configured to send the fourth wireless network information obtained by the second generating module to the core network through the ground interface between the access network and the core network.

14. The access network equipment according to claim 13, characterized in that: the network standard of the ground interface between the access network and the core network and the network standard of the air interface between the access network and the user equipment The format is inconsistent.

15. The access network device according to claim 13 or 14, characterized in that the second message received by the second receiving module also includes the third non-access layer NAS information of the user equipment;

The second parsing module is also configured to: when the network standard of the ground interface between the access network and the core network is inconsistent with the network standard of the air interface between the access network and the user equipment, Parse the third NAS information of the user equipment from the second message received by the second receiving module;

The second generation module is also configured to convert the third NAS information of the user equipment parsed by the second parsing module into a third NAS information according to the network standard of the terrestrial interface between the access network and the core network. Four NAS information;

The second sending module is further configured to send the fourth NAS information obtained by the second generating module to the core network through the ground interface between the access network and the core network.

16. An access network device, characterized in that, the access network device includes:

A receiver, configured to receive the second message sent by the user equipment through the air interface between the access network and the user equipment, where the second message contains the third wireless network information of the user equipment;

A processor, configured to parse the third wireless network information of the user equipment from the second message received by the receiver; according to the interface protocol of the ground interface between the access network and the core network and the The third wireless network information of the user equipment generates fourth wireless network information;

A transmitter, configured to send the fourth wireless network information obtained by the processor to the core network through a ground interface between the access network and the core network.

17. The access network equipment according to claim 16, characterized in that: the network standard of the ground interface between the access network and the core network and the network standard of the air interface between the access network and the user equipment Inconsistent.

18. The access network device according to claim 16 or 17, characterized in that the received second message also includes the third non-access layer NAS information of the user equipment;

The processor is also configured to: if the network standard of the ground interface between the access network and the core network is inconsistent with the network standard of the air interface between the access network and the user equipment, The third NAS information of the user equipment is parsed in the second message; according to the network standard of the ground interface between the access network and the core network, convert the third NAS information of the user equipment into a fourth NAS information;

The transmitter is further configured to send the fourth NAS information obtained by the processor to the core network through the ground interface between the access network and the core network.