CN111565418A

CN111565418A - O-RAN and MEC communication method and system

Info

Publication number: CN111565418A
Application number: CN202010669734.4A
Authority: CN
Inventors: 尤建洁; 刘东杰
Original assignee: Network Communication and Security Zijinshan Laboratory
Current assignee: Network Communication and Security Zijinshan Laboratory
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2020-08-21
Anticipated expiration: 2040-07-13
Also published as: WO2022011862A1; CN111565418B

Abstract

The embodiment of the invention discloses a communication method and a communication system of an O-RAN and an MEC, relates to the technical field of communication, and can realize communication interaction between the MEC and the O-RAN. The invention comprises the following steps: configuring an MEC function support module on an O-RAN, and performing first encapsulation on first information through the MEC function support module; the O-RAN sends the information subjected to the first encapsulation to the MEC system, wherein the first information comprises information required by the MEC system; configuring an RIC function support module on the MEC system, and performing second packaging on second information through the RIC function support module; the MEC system sends the information after the second encapsulation to the O-RAN. The method is suitable for the communication between the MEC and the O-RAN.

Description

O-RAN and MEC communication method and system

Technical Field

The invention relates to the technical field of communication, in particular to a communication method and system of an O-RAN and an MEC.

Background

With the mutation of international situation, the 5G construction is further accelerated in China, and various secondary development and application schemes based on 5G technology are accelerated. The 3GPP defines three major scenarios for 5G applications: eMBB, URLLC, and mMTC.

The O-RAN is generated by considering the characteristics of high cost and large network building scale of single-station equipment of the 5G network. The O-RAN reduces the construction difficulty by comprehensively renovating the access network and reduces the comprehensive cost investment of the operator network of the wireless network. Meanwhile, the MEC is used as a key technology of 5G evolution, provides cloud computing capability and an IT service environment at the edge of a network closer to a user, and has the characteristics of ultralow time delay, ultrahigh bandwidth, localization, high real-time analysis and processing and the like.

However, the combination of MEC and O-RAN is still under discussion, and the corresponding technology and specification are lacking to support the effective interaction between the two.

Disclosure of Invention

The embodiment of the invention provides a communication method and a communication system of an O-RAN and an MEC, which can realize communication interaction between the MEC and the O-RAN.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

in one aspect, an embodiment of the present application provides a communication method between an O-RAN and an MEC, including:

configuring an MEC function support module on an O-RAN, and performing first encapsulation on first information through the MEC function support module;

the O-RAN sends the information after the first encapsulation to the MEC system, wherein the first information includes information required by the MEC system, and the information required by the MEC system at least includes: the first encapsulation matches a second resolution of the MEC system for available resource information for a current wireless network and prediction information for future wireless network resources;

configuring an RIC function support module on the MEC system, and performing second packaging on second information through the RIC function support module;

the MEC system sends the information subjected to the second encapsulation to the O-RAN, wherein the second information comprises information required by an RIC function, and the information required by the RIC function at least comprises: the second package matches the first analysis of the RIC function.

In another aspect, an embodiment of the present application provides a communication system between an O-RAN and an MEC, including:

configuring an MEC function support module on the O-RAN and configuring an RIC function support module on the MEC system;

the MEC function support module is configured to perform first encapsulation on first information, and the O-RAN is configured to send the information subjected to the first encapsulation to the MEC system, where the first information includes information required by the MEC system, and the information required by the MEC system at least includes: the first encapsulation matches a second resolution of the MEC system for available resource information for a current wireless network and prediction information for future wireless network resources;

the RIC function support module is configured to perform second encapsulation on second information, and the MEC system is configured to send the information subjected to the second encapsulation to the O-RAN, where the second information includes information required by an RIC function, and the information required by the RIC function at least includes: the second package matches the first analysis of the RIC function.

In the communication method and system between the O-RAN and the MEC provided by the embodiment of the present invention, the O-RAN has an MEC function support module, and the module is responsible for encapsulating information required by the MEC system into a format that can be analyzed by the MEC system and transmitting the information to the MEC system through a corresponding protocol (e.g., UDP, SCTP). The MEC system has an RIC function support module which is responsible for packaging information required by the RIC function into a format which can be analyzed by the RIC function and transmitting the information to the RIC function through a corresponding protocol (such as UDP, SCTP). When the O-RAN and the MEC belong to different operators, a mutual authentication mechanism needs to be provided between the O-RAN and the MEC to guarantee the credibility and the safety of interaction between the O-RAN and the MEC. Through the communication scheme of the O-RAN and the MEC, the two are interacted effectively, the access network and the edge computing depth are combined, service is provided at the network edge close to the user, the access network capacity customization is realized, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an interaction architecture of an MEC and an O-RAN according to an embodiment of the present invention;

fig. 2 is an interface interaction diagram of an MEC and an O-RAN according to an embodiment of the present invention;

fig. 3 is a flowchart of an MEC-triggered interaction between an MEC and an O-RAN according to an embodiment of the present invention;

fig. 4 is a flowchart of an O-RAN triggered interaction between an MEC and an O-RAN according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Some english abbreviations appearing in the present examples respectively represent:

NSSF (Network Slice Selection Function),

NRF (Network storage Function),

NEF (Network expose Function),

AUSF (Authentication Server Function),

AMF (Access and Mobility Management Function),

SMF (Session Management Function),

PCF (Policy Control Function),

URLLC (Ultra-reliable and Low Latency Communications),

UDP (User Datagram Protocol),

UPF (User Plane Function),

UDM (Unified Data Management),

MEC (Multi-Access Edge Computing),

MEC System Level (MEC System Level),

MEC Orchester (MEC Orchestrator),

Operation support System,

MEC Platform (MEC Platform),

MEC Host Level (MEC Host Level),

LAND (Local Area Data Network, Local Data Network),

Service Management and organization Framework,

RAN (Radio Access Network),

O-RAN (Open Radio Access Network),

O-CU (O-RAN centralized unit),

A CP (control plane),

UP (User plane),

A UE (User Equipment),

O-CU-CP (control plane of O-RAN centralized Unit),

O-CU-UP (user plane of O-RAN convergence unit),

O-DU (O-RAN distributed unit),

An O-RU (O-RAN Radio Unit, O-RAN Radio frequency Unit),

RIC (RAN Intelligent Controller),

RT (real time),

Non-RT RIC (Non-RT RAN Intelligent Controller, Non-real-time Wireless network),

Near-RT RIC (Near-real-time radio network intelligent Controller),

PCC (Policy Control and Charging),

5G (5 th Generation mobile networks or 5th Generation wireless systems, 5th-Generation, fifth Generation mobile communication technology),

3GPP (3 rd Generation Partnership Project, third Generation Partnership Project),

eMBB (Enhanced Mobile Broadband)

SCTP (Stream Control Transmission Protocol)

mMTC (Massive Machine Type Communication),

It should be noted that, in fig. 1 and 2, N1, N3, N4, N6, a1, E1, E2, F1-C and F1-U respectively represent the codes of the interfaces that are currently available, and these interfaces and the related codes are already commonly used in the current 5G technology and are already defined in the current standard, and those skilled in the art can understand the meanings thereof based on the related information of the current 5G technology.

The method flow in this embodiment may be implemented on an interaction architecture of the MEC and the O-RAN as shown in fig. 1. Wherein, the ETSI GS MEC specification defines the MEC reference architecture, and the ETSI MEC system is composed of two parts, namely a MEC host level and a MEC system level. The MEC host level includes UPF, MEC platform, and MEC application, among others. The MEC system level comprises an operation support system, an MEC organizer and the like. The MEC orchestrator is a core function in the management of the MEC system level, and is primarily responsible for maintaining an overall view of the MEC system, including the deployed MEC hosts, available resources, available MEC services, and network topology.

The O-RAN industry alliance defines an O-RAN architecture, and introduces two-stage non-real-time and real-time RIC on the basis of a 5G access network CU/DU architecture and function virtualization. The RIC mainly utilizes big data analysis and an artificial intelligence engine to sense and predict the wireless network environment and make decisions on allocation of wireless resources. According to the processing time delay characteristic, the RIC is divided into a Non-real-time wireless network intelligent controller Non-RT RIC and a Near-real-time wireless network intelligent controller Near-RT RIC. The Near-RT RIC can realize Near-real-time control and optimization of RAN elements and resources through fine-grained data collection and operation through an E2 interface; Non-RT RIC supports Non-real-time control and optimization of RAN elements and resources, AI/ML workflow (including model training and updating), and application/function guidance for policy-based near-RT RIC. The non-real-time RIC supports the import of customized strategies and the generation of artificial intelligence models and applications. Near real-time RIC supports online real-time execution of artificial intelligence model reasoning and applications. The interface between the O-CU and the O-DU is F1.

The embodiment of the invention provides a communication method of an O-RAN and an MEC, which comprises the following steps of:

on the O-RAN side:

configuring MEC functionality on O-RANThe MEC function supporting module is used for performing first packaging on first information; and the O-RAN sends the information subjected to the first encapsulation to the MEC system, wherein the first information comprises information required by the MEC system, and the first encapsulation is matched with the second analysis of the MEC system and is transmitted to the MEC system through a corresponding protocol (such as UDP and SCTP). The information required by the MEC system at least includes: it should be noted that the O-RAN itself has the information, which may be collected or counted by the O-RAN, and then passes through an interface (referred to as X in this embodiment) between the O-RAN and the MEC_mInterface) sends this information to the MEC.

On the MEC system side:

configuring an RIC function support module on the MEC system, and performing second packaging on second information through the RIC function support module; the MEC system sends the information subjected to the second encapsulation to the O-RAN, wherein the second information comprises information required by an RIC function, and the information required by the RIC function at least comprises: the second package matches the first analysis of the RIC function and transmits the information to the RIC function through a corresponding protocol (such as UDP, SCTP).

The MEC function support module and the RIC function support module in this embodiment both represent a functional module applied to the MEC system and the O-RAN, and in this embodiment, whether the functional module is implemented by hardware or software is not limited.

In this embodiment, before the first information is first encapsulated by the MEC function support module, the method further includes: and an Xm interface is established between a system level management function (MEC) orchestrator of the MEC system and the near real-time RIC in the O-RAN, and the information which is packaged is transmitted through the Xm interface. For example, as shown in fig. 1, in order to support the interaction between the 5G MEC and the O-RAN, an interface Xm between the MEC and the O-RAN is designed and defined in this embodiment, and specifically, an interaction interface exists between the MEC system level management function MEC orchestrator and the near real-time RIC in the O-RAN. Through this interface, the MEC system will receive information from the O-RAN about the wireless network, including information on available resources of the current wireless network and predictions of future wireless network resources; through this interface, the O-RAN will receive information about the service from the MEC system, including information about the type of service, a prediction of occupied resources for the service, service resource requests, etc. When the O-RAN and the MEC belong to different operators, a mutual authentication mechanism needs to be provided between the O-RAN and the MEC to guarantee the credibility and the safety of interaction between the O-RAN and the MEC.

In a preferred embodiment of this embodiment, the MEC system and the O-RAN perform data interaction through a UDP protocol or an SCTP protocol. The above-mentioned first encapsulation matches the second parsing, and the second encapsulation matches the first parsing, which can be understood as a specific adopted algorithm for encapsulating/parsing data based on UDP protocol or SCTP protocol, where "matching" means that the encapsulated data packet can be unpacked by parsing. For example, as shown in fig. 2, the interface interaction diagram of the MEC and the O-RAN is shown, and the O-RAN has an MEC function support module, which is responsible for encapsulating the information required by the MEC system into a format that can be resolved by the MEC system and transmitting the information to the MEC system through a corresponding protocol (e.g., UDP, SCTP). The MEC system has an RIC function support module which is responsible for packaging information required by the RIC function into a format which can be analyzed by the RIC function and transmitting the information to the RIC function through a corresponding protocol (such as UDP, SCTP).

In this embodiment, an interaction procedure triggered by the MEC is further provided, where after the MEC system sends the information after the second encapsulation to the O-RAN, the method further includes: the MEC system generates a subscription message through an MEC composer, sends the subscription message to Near-RT RIC through the MEC composer, and simultaneously subscribes wireless network resource information to the O-RAN; the Near-RTRIC generates a message subscribed by the MEC system according to local information and generates a response message; the Near-RT RIC replies the response message to the MEC orchestrator, wherein parameters in the response message at least comprise available bandwidth information and time information; and the MEC system updates the service parameters according to the received response message. The local information for Near-RTRIC may include: and (4) information of wireless network resources where the Near-RTRIC is locally located. In this embodiment, both the MEC system and the O-RAN may subscribe to one or more messages, for example, if the MEC system subscribes to the current radio network resource, the reply message includes the current radio network resource available status. It can be understood that the MEC system subscribes to messages generated by the Near-RT RIC. The message subscribed by the O-RAN is generated by the MEC system; therefore, message interaction and mutual perception between the MEC system and the O-RAN are achieved, in the process, the MEC system is equivalent to question extraction, and the O-RAN is equivalent to answer.

For example, in the communication process between the MEC and the O-RAN, the interaction flow triggered by the MEC is shown in fig. 3, which includes:

step 1: the MEC generates a subscription message according to the business requirement, and specifically, an MEC orchestrator in the MEC system generates the subscription message according to the MEC application/service requirement (for example, information such as business type and resource occupation model statistics). For example: and the user initiates an MEC application service of the 8K high-definition video, and then the MEC can subscribe the current wireless resource information to the O-RAN so as to judge whether the current bandwidth resource can meet the requirement of the user high-definition video.

Step 2: the MEC orchestrator sends a subscription message to the Near-RT RIC, and subscribes to the O-RAN for wireless network resource information, such as available bandwidth, wireless resource statistics, etc.

And step 3: the Near-RT RIC generates a message subscribed by the MEC according to the local information, and generates a reply response when a subscription condition (such as a time period) is satisfied.

And 4, step 4: the Near-RT RIC replies a response message to the MEC orchestrator, wherein the response message carries parameters such as available bandwidth, time and the like;

and 5: the MEC system optimizes service parameters (e.g. video bit rate of video service) and the like according to the received information.

In this embodiment, an interaction procedure triggered by an O-RAN is further provided, where after the MEC system sends the information after the second encapsulation to the O-RAN, the method further includes: the O-RAN generates a subscription message according to network requirements through a Near-RT RIC, and sends the subscription message to the MEC orchestrator through the Near-RT RIC; the MEC orchestrator generates a message subscribed by the O-RAN according to local information and generates a response message; the MEC composer replies the response message to the Near-RT RIC, wherein parameters in the response message at least comprise service types; and the Near-RT RIC updates the wireless resource allocation according to the received response message.

The network requirement includes information such as bandwidth, priority, etc. The local information of the MEC system contains service requirements such as service type, bandwidth, etc. The local information of the O-RAN includes radio resource availability, etc. It should be noted that the contents of the response messages sent by the respective devices are not the same, and it can be generally understood that, in the process of asking and answering 2 devices one by one, the messages generally appear in pairs, that is, the request message and the response message generally appear in pairs, the MEC system sends out an inquiry to the O-RAN by sending out the request message, and the O-RAN feeds back the response message to the MEC system as an answer, and vice versa.

For example, in the communication process between the MEC and the O-RAN, the interaction flow triggered by the O-RAN is shown in fig. 4, which includes:

step 1: and the O-RAN generates a subscription message according to the network requirement, and specifically, the Near-RT RIC generates the subscription message according to the network requirement.

Step 2: the Near-RT RIC sends subscription messages to the MEC orchestrator, such as information of the service type, statistics of the resource occupancy model, etc.

And step 3: the MEC orchestrator generates messages subscribed to by the O-RAN based on the local information and generates a reply response when a subscription condition (e.g., a time period) is met.

And 4, step 4: the MEC orchestrator replies a response message to the Near-RT RIC, wherein the response message carries parameters such as service types;

and 5: the Near-RT RIC optimizes the allocation of radio resources according to the received information, and the specific way of optimizing the allocation of radio resources may depend on specific application scenarios, for example: the priority is adjusted up or down, or resources are reserved for certain services, or resources are preempted, and the like.

It should be noted that, in the present embodiment, an interaction process between the MEC composer and Near-RT RIC is used for example, and the interaction process is also applicable to interaction between the MEC composer and Non-RT RIC, which is not described herein again.

In this embodiment, to support interaction between the 5G MEC and the O-RAN, an interface Xm between the MEC and the O-RAN is provided, and specifically, an interaction interface exists between the MEC system level management function MEC orchestrator and the near real-time RIC in the O-RAN. Through this interface the MEC system will receive information from the O-RAN about the wireless network, in particular information including available resources of the current wireless network and predictions of future wireless network resources. Through this interface the O-RAN will receive information about the service from the MEC system, in particular including information about the type of service, prediction of occupied resources by the service, service resource requests, etc.

The O-RAN has an MEC function support module which is responsible for packaging information required by the MEC system into a format which can be analyzed by the MEC system and transmitting the information to the MEC system through a corresponding protocol (such as UDP, SCTP). The MEC system has an RIC function support module which is responsible for packaging information required by the RIC function into a format which can be analyzed by the RIC function and transmitting the information to the RIC function through a corresponding protocol (such as UDP, SCTP). When the O-RAN and the MEC belong to different operators, a mutual authentication mechanism needs to be provided between the O-RAN and the MEC to guarantee the credibility and the safety of interaction between the O-RAN and the MEC.

Through the communication scheme of the O-RAN and the MEC, the two are interacted effectively, the access network and the edge computing depth are combined, service is provided at the network edge close to the user, the access network capacity customization is realized, and the user experience is improved.

In this embodiment, a communication system between the O-RAN and the MEC is further provided, where in the system architecture shown in fig. 1 and 2, an MEC function support module is configured on the O-RAN, and an RIC function support module is configured on the MEC system.

The MEC function support module is configured to perform first encapsulation on first information, and the O-RAN is configured to send the information subjected to the first encapsulation to the MEC system, where the first information includes information required by the MEC system, and the information required by the MEC system at least includes: the first encapsulation matches a second resolution of the MEC system for available resource information for a current wireless network and prediction information for future wireless network resources.

Specifically, the encapsulated information is transmitted between the system level management function MEC orchestrator of the MEC system and the near real-time RIC in the O-RAN through an Xm interface. And the MEC system and the O-RAN perform data interaction through a UDP (user Datagram protocol) or a SCTP (stream control Transmission protocol).

Specifically, the MEC orchestrator is further configured to generate a subscription message and send the subscription message to a Near-RT RIC, and the MEC system is further configured to subscribe to wireless network resource information from the O-RAN. The Near-RT RIC is used for generating a message subscribed by the MEC system according to local information, generating a response message, replying the response message to the MEC composer, wherein parameters in the response message at least comprise available bandwidth information and time information, and the MEC system is also used for updating service parameters according to the received response message.

Specifically, the Near-RT RIC is further configured to generate a subscription message according to a network requirement, and send the subscription message to the MEC orchestrator. And the MEC orchestrator is further used for generating a message subscribed by the O-RAN according to local information, generating a response message, and then replying the response message to the Near-RT RIC, wherein parameters in the response message at least comprise service types. And the Near-RT RIC is also used for updating the wireless resource allocation according to the received response message.

The steps of a method or algorithm described in connection with the disclosure herein may be embodied in hardware or in software instructions executed by a processor. The software instructions may be comprised of corresponding software modules that may be stored in Random Access Memory (RAM), flash memory, Read Only Memory (ROM), Erasable Programmable Read Only Memory (EPROM), Electrically Erasable Programmable Read Only Memory (EEPROM), registers, a hard disk, a removable hard disk, a compact disc read only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. Additionally, the ASIC may reside in a core network interface device. Of course, the processor and the storage medium may reside as discrete components in a core network interface device.

Those skilled in the art will recognize that in one or more of the examples described above, the functions described herein may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The above-mentioned embodiments, objects, technical solutions and advantages of the present application are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present application should be included in the scope of the present application.

Claims

1. A method for communicating between an O-RAN and an MEC, comprising: configuring an MEC function support module on an O-RAN, and performing first encapsulation on first information through the MEC function support module; the O-RAN sends the information after the first encapsulation to an MEC system, wherein the first information includes information required by the MEC system, and the information required by the MEC system at least includes: the first encapsulation matches a second resolution of the MEC system for available resource information for a current wireless network and prediction information for future wireless network resources; configuring an RIC function support module on the MEC system, and performing second packaging on second information through the RIC function support module; the MEC system sends the information subjected to the second encapsulation to the O-RAN, wherein the second information comprises information required by an RIC function, and the information required by the RIC function at least comprises: the second package matches the first analysis of the RIC function.

2. The method according to claim 1, wherein before the first encapsulating, by the MEC functionality support module, the first information, further comprises: and an Xm interface is established between a system level management function (MEC) orchestrator of the MEC system and the near real-time RIC in the O-RAN, and the information which is packaged is transmitted through the Xm interface.

3. The method according to claim 1 or 2, wherein the data interaction between the MEC system and the O-RAN is performed through UDP protocol or SCTP protocol.

4. The method of claim 2, after the MEC system sends the second encapsulated information to the O-RAN, further comprising: the MEC system generates a subscription message through an MEC composer, sends the subscription message to Near-RT RIC through the MEC composer, and simultaneously subscribes wireless network resource information to the O-RAN; the Near-RT RIC generates a message subscribed by the MEC system according to local information and generates a response message; the Near-RT RIC replies the response message to the MEC orchestrator, wherein parameters in the response message at least comprise available bandwidth information and time information; and the MEC system updates the service parameters according to the received response message.

5. The method of claim 2, after the MEC system sends the second encapsulated information to the O-RAN, further comprising: the O-RAN generates a subscription message according to network requirements through a Near-RT RIC, and sends the subscription message to the MEC orchestrator through the Near-RT RIC; the MEC orchestrator generates a message subscribed by the O-RAN according to local information and generates a response message; the MEC composer replies the response message to the Near-RT RIC, wherein parameters in the response message at least comprise service types; and the Near-RT RIC updates the wireless resource allocation according to the received response message.

6. A communication system of O-RAN and MEC is characterized in that an MEC function supporting module is configured on the O-RAN, and an RIC function supporting module is configured on the MEC system; the MEC function support module is configured to perform first encapsulation on first information, and the O-RAN is configured to send the information subjected to the first encapsulation to the MEC system, where the first information includes information required by the MEC system, and the information required by the MEC system at least includes: the first encapsulation matches a second resolution of the MEC system for available resource information for a current wireless network and prediction information for future wireless network resources; the RIC function support module is configured to perform second encapsulation on second information, and the MEC system is configured to send the information subjected to the second encapsulation to the O-RAN, where the second information includes information required by an RIC function, and the information required by the RIC function at least includes: the second package matches the first analysis of the RIC function.

7. The system according to claim 6, wherein said encapsulated information is transmitted between a system level management function, MEC, orchestrator of said MEC system and said near real time RIC in said O-RAN via an Xm interface.

8. The system according to claim 6 or 7, wherein the data interaction between the MEC system and the O-RAN is performed through UDP protocol or SCTP protocol.

9. The system of claim 7, wherein the MEC orchestrator is further configured to generate a subscription message and send the subscription message to a Near-RT RIC, and wherein the MEC system is further configured to subscribe to wireless network resource information from the O-RAN; the Near-RT RIC is used for generating a message subscribed by the MEC system according to local information, generating a response message, replying the response message to the MEC composer, wherein parameters in the response message at least comprise available bandwidth information and time information, and the MEC system is also used for updating service parameters according to the received response message.

10. The system of claim 7, wherein the Near-RT RIC is further configured to generate a subscription message according to network requirements and send the subscription message to the MEC orchestrator; the MEC orchestrator is further configured to generate a message subscribed by the O-RAN according to local information, generate a response message, and then reply the response message to the Near-RT RIC, where parameters in the response message at least include a service type; and the Near-RT RIC is also used for updating the wireless resource allocation according to the received response message.