CN114205059B

CN114205059B - Information interaction method, device and storage medium

Info

Publication number: CN114205059B
Application number: CN202010888366.2A
Authority: CN
Inventors: 黄远芳
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2023-08-29
Anticipated expiration: 2040-08-28
Also published as: CN114205059A

Abstract

The embodiment of the application provides an information interaction method, an information interaction device and a readable storage medium, wherein the RIC is used in an O-RAN system and has the capability of communicating with a core network, and comprises the following steps: determining a communication interface for communicating with a core network; receiving PDU session resource establishment notification message sent by a core network through a communication interface; establishing a corresponding first PDU session according to the PDU session resource establishment notification message; determining terminal reporting information corresponding to a first PDU session; the terminal reporting information is added into the PDU conversation resource interface notification message, and the PDU conversation resource interface notification message is sent to the core network through the communication interface, so that the information interaction between the core network and the RIC is realized, and a basis is provided for the core network to adjust the RAN strategy and parameters.

Description

Information interaction method, device and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to an information interaction method, an information interaction device, and a storage medium.

Background

The RIC (Radio Access Network Intelligent Controller, radio access network controller) defined by the O-RAN (Open-Radio Access Network, open radio access network) architecture may include a Near-RT RIC (Near Real Time RAN Intelligent Controller, near-real-time radio access network controller) and a Non-RT RIC (Non Real Time RAN Intelligent Controller, non-real-time radio access network controller).

In the prior art, the core network cannot acquire information from the RIC, which affects the decision of the core network to the RAN.

Therefore, how to solve the information interaction between the core network and the RIC is a technical problem that needs to be solved currently.

Disclosure of Invention

The embodiment of the application provides an information interaction method, an information interaction device and a storage medium, which are used for solving the defect that a core network cannot acquire information from RIC in the prior art and realizing information interaction between the core network and the RIC.

In a first aspect, an embodiment of the present application provides an information interaction method, which is used for a radio access network controller RIC in an open radio access network O-RAN system, where the RIC has a capability of communicating with a core network, and includes:

determining a communication interface for communicating with the core network;

receiving a protocol data unit PDU session resource establishment notification message sent by the core network through the communication interface;

establishing a corresponding first PDU session according to the PDU session resource establishment notification message;

determining terminal reporting information corresponding to the first PDU session;

and adding the terminal reporting information into a PDU session resource interface notification message, and sending the PDU session resource interface notification message to the core network through the communication interface.

Optionally, according to an embodiment of the present application, the RIC is a Near real-time radio access network controller Near-RT RIC, and the Near-RT RIC is connected to a Non-real time radio access network controller Non-RT RIC in the O-RAN system through an A1 interface;

the determining a communication interface for communicating with the core network includes:

if the Near-RT RIC is provided with a first interface directly connected with the core network, determining that the first interface is the communication interface;

and if the first interface is not set by the Near-RT RIC, and a second interface which is directly connected with the core network is set by the Non-RT RIC, determining that the A1 interface and the second interface are the communication interfaces.

Optionally, according to an embodiment of the present application, the RIC is a Non-RT RIC, and the Non-RT RIC is connected to a Near-RT RIC in the O-RAN system through an A1 interface;

if the Non-RT RIC is provided with a third interface directly connected with the core network, determining the third interface as the communication interface;

and if the Non-RT RIC is not provided with the third interface, the Near-RT RIC is provided with a fourth interface which is directly connected with the core network, and the A1 interface and the fourth interface are determined to be the communication interfaces.

Optionally, according to an embodiment of the present application, the determining the terminal reporting information corresponding to the first PDU session includes:

detecting that a terminal reporting triggering condition is met;

and acquiring terminal reporting information corresponding to the first PDU session according to the terminal reporting triggering condition.

Optionally, according to the information interaction method of an embodiment of the present application, the reporting triggering condition of the terminal includes: the radio resources at the RAN side cannot meet the requirements of QoS flows; and/or receiving indication information that the core network needs to perform QoS policy adjustment;

the terminal reporting information comprises: radio resource prediction information and/or radio resource allocation information based on QoS performance requirements.

Optionally, according to the information interaction method of an embodiment of the present application, the terminal report information further includes terminal location information.

Optionally, the information interaction method according to an embodiment of the present application further includes:

receiving PDU session resource update notification message sent by the core network through the communication interface;

and updating the first PDU session according to the PDU session resource updating notification message.

Receiving a PDU session resource release notification message sent by the core network through the communication interface;

and releasing the first PDU session according to the PDU session resource release notification message.

In a second aspect, an embodiment of the present application further provides an information interaction method, where the method is used for a core network, and the core network has a capability of communicating with a radio access network controller RIC in an open radio access network O-RAN system, and includes:

determining a communication interface for communicating with the RIC;

transmitting a protocol data unit PDU session resource establishment notification message to the RIC through the communication interface, so that the RIC establishes a corresponding first PDU session according to the PDU session resource establishment notification message;

and receiving a PDU (protocol data unit) session resource interface notification message sent by the RIC through the communication interface, wherein the PDU session resource interface notification message comprises terminal reporting information corresponding to the first PDU session.

The determining a communication interface to communicate with the RIC, comprising:

Optionally, according to the information interaction method of an embodiment of the present application, the terminal reporting information includes: radio resource prediction information and/or radio resource allocation information based on QoS performance requirements;

The information interaction method further comprises the following steps:

and carrying out QoS strategy adjustment according to the wireless resource prediction information and/or the wireless resource allocation information based on the QoS performance requirement.

and transmitting a PDU session resource update notification message to the RIC through the communication interface, so that the RIC updates the first PDU session according to the PDU session resource update notification message.

and sending a PDU session resource release notification message to the RIC through the communication interface, so that the RIC releases the first PDU session according to the PDU session resource release notification message.

In a third aspect, an embodiment of the present application further provides an information interaction device, including a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and implementing the steps of the information interaction method according to the first aspect as described above.

In a fourth aspect, an embodiment of the present application further provides an information interaction device, including a memory, a transceiver, and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and implementing the steps of the information interaction method according to the second aspect as described above.

In a fifth aspect, an embodiment of the present application further provides an information interaction device, where the device is used for a radio access network controller RIC in an open radio access network O-RAN system, where the RIC has a capability of communicating with a core network, and includes:

a first determining module, configured to determine a communication interface that communicates with the core network;

a first receiving module, configured to receive, through the communication interface, a protocol data unit PDU session resource establishment notification message sent by the core network;

a session establishment module, configured to establish a corresponding first PDU session according to the PDU session resource establishment notification message;

a second determining module, configured to determine terminal reporting information corresponding to the first PDU session;

and the notification message sending module is used for adding the terminal reporting information into a PDU session resource interface notification message and sending the PDU session resource interface notification message to the core network through the communication interface.

In a sixth aspect, an embodiment of the present application further provides an information interaction device, which is used in a core network, where the core network has a capability of communicating with a radio access network controller RIC in an open radio access network O-RAN system, and includes:

a communication interface determining module for determining a communication interface for communicating with the RIC;

a first sending module, configured to send a protocol data unit PDU session resource establishment notification message to the RIC through the communication interface, so that the RIC establishes a corresponding first PDU session according to the PDU session resource establishment notification message;

and the notification message receiving module is used for receiving a PDU (protocol data unit) session resource interface notification message sent by the RIC through the communication interface, wherein the PDU session resource interface notification message comprises terminal reporting information corresponding to the first PDU session.

In a seventh aspect, an embodiment of the present application further provides a processor-readable storage medium, where a computer program is stored, where the computer program is configured to cause the processor to perform the steps of the information interaction method according to the first aspect.

The embodiment of the application provides an information interaction method, an information interaction device and a readable storage medium, which are used for RIC in an O-RAN system, wherein the RIC has the capability of communicating with a core network and comprises the following steps: determining a communication interface for communicating with a core network; receiving PDU session resource establishment notification message sent by a core network through a communication interface; establishing a corresponding first PDU session according to the PDU session resource establishment notification message; determining terminal reporting information corresponding to a first PDU session; the terminal reporting information is added into the PDU conversation resource interface notification message, and the PDU conversation resource interface notification message is sent to the core network through the communication interface, so that the information interaction between the core network and the RIC is realized, and a basis is provided for the core network to adjust the RAN strategy and parameters.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of an O-RAN system architecture according to an embodiment of the present application;

fig. 2 is a schematic flow chart of an information interaction method according to an embodiment of the present application;

fig. 3 is a schematic diagram of a protocol structure of an N2-O interface according to an embodiment of the present application;

fig. 4 is a schematic diagram of a notification procedure of a PDU session resource establishment message according to an embodiment of the present application;

fig. 5 is a schematic diagram of a PDU session resource establishment message according to an embodiment of the present application;

fig. 6 is a schematic diagram of a notification procedure of a PDU session resource interface message according to an embodiment of the present application;

fig. 7 is a schematic diagram of a PDU session resource interface message according to an embodiment of the present application;

fig. 8 is a message schematic diagram of PDU session resource message forwarding according to an embodiment of the present application;

Fig. 9 is a schematic diagram of a notification procedure of a PDU session resource update message according to an embodiment of the present application;

fig. 10 is a schematic diagram of a PDU session resource update message according to an embodiment of the present application;

fig. 11 is a schematic diagram of a notification process of a PDU session resource release message according to an embodiment of the present application;

fig. 12 is a schematic diagram of a PDU session resource release message according to an embodiment of the present application;

fig. 13 is a schematic flow chart of an information interaction method according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of an information interaction device according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of an information interaction device according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of an information interaction device according to an embodiment of the present application;

fig. 17 is a schematic structural diagram of an information interaction device according to an embodiment of the present application.

Detailed Description

In the embodiment of the application, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in embodiments of the present application means two or more, and other adjectives are similar.

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The RICs defined by the O-RAN architecture may include Near-RT RICs and Non-RT RICs. At present, the core network cannot acquire information from the RIC, which affects the decision of the core network to the RAN. Therefore, how to solve the information interaction between the core network and the RIC is a technical problem that needs to be solved currently.

As shown in fig. 1, the intelligent applications on the Near-RT RIC and the Non-RT RIC may collect measurement data and service data from the E2 node through the E2 interface, receive policy information and other redundant information (enrichment information, such as service information from a service server) from the Non-RT RIC through the A1 interface, analyze the data using AI/ML (Artificial Intelligence/Machine Learning) model, provide finer radio resource prediction and allocation policy, and guarantee reliability, latency, bandwidth, etc. of QoS (Quality of Service ) in diverse radio environments and traffic demands. The Near-RT RIC and the Non-RT RIC may instruct the RAN via the E2 interface to monitor and alter QoS parameters at the DRB (Data Radio Bearer ) level and monitor and reconfigure radio resources according to a prediction and allocation policy of radio resources based on QoS performance requirements.

For QoS parameters of QoS flows, detection and control thereof are both performed in the core network. In the O-RAN architecture, the Near-RT RIC/Non-RT RIC has no interface with the core network, so that the core network cannot be informed of the prediction condition of the wireless resource, the QoS parameter monitoring condition and the condition of whether the wireless resource is matched with the QoS performance requirement, and the core network cannot acquire the QoS prediction and monitoring information from the Near-RT RIC/Non-RT RIC, thereby influencing the decision of the core network for adjusting the QoS parameter.

The application provides an interface between a Near-RT RIC/Non-RT RIC and a core network, such as an N2-O interface shown in figure 1, and the N2-O interface is used for carrying out service quality notification control (QoS Notification Control), so that the Near-RT RIC/Non-RT RIC can acquire wireless resource prediction and distribution information based on QoS performance requirements by using intelligent application thereon, and interact with the core network through the service quality notification control to provide basis for the core network to adjust QoS strategies and parameters.

The embodiment of the application provides an information interaction method, an information interaction device and a storage medium, which are used for solving the technical problem of information interaction between a core network and RIC.

The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, applicable systems may be global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), time division synchronous CDMA (Time Division Synchronous Code Division Multiple Access, TD-SCDMA), general packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE) including TD-LTE and FDD LTE, long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), new air interface (New Radio, NR) systems, and the like. Terminal devices and network devices are included in these various systems. Core network parts may also be included in the system, such as evolved packet system (Evolved Packet System, EPS), 5G system (5 GS/5 GC), etc.

The terminal device according to the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and embodiments of the present application are not limited in this respect.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for the terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiment of the present application. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

The following is a description of specific examples.

Fig. 2 is a flow chart of an information interaction method provided in an embodiment of the present application, where the method is used for RIC in an O-RAN system, and the RIC has a capability of communicating with a core network, and may perform the following steps:

s201, determining a communication interface for communicating with a core network.

Specifically, the RIC in the O-RAN system determines its communication interface with the core network. For example, the interface may be an N2-O interface as shown in FIG. 1.

The protocol structure of the N2-O interface is shown in fig. 3, and the application protocol of the N2-O interface includes: flow control transmission protocol (Stream Control Transmission Protocol, SCTP); internetworking protocol (Internet Protocol, IP); a Data Link Layer (DLL); physical Layer (PL).

S202, receiving PDU session resource establishment notification message sent by the core network through the communication interface.

Specifically, the RIC in the O-RAN system receives a PDU (Protocol Data Unit ) session resource establishment notification message sent by the core network through the communication interface.

For example, in an exemplary scenario, a Near-RT RIC or Non-RT RIC in the O-RAN system shown in fig. 1 may receive a PDU session resource establishment notification message sent by the core network through the N2-O interface, where the message may be an SMF (Session Management Function ) in the core network, and send the message to an AMF (Access and Mobility Management Function ) in the core network, where the AMF sends the message to the Near-RT RIC or Non-RT RIC.

S203, establishing a corresponding first PDU session according to the PDU session resource establishment notification message.

Specifically, the RIC in the O-RAN system establishes a corresponding first PDU session according to the PDU session resource establishment notification message.

In an example scenario, as shown in fig. 4, the core network sends a message of PDU session resource establishment notification to RIC (i.e., near-RT RIC and Non-RT RIC), the content of which is shown in fig. 5.

S204, determining the terminal reporting information corresponding to the first PDU session.

Specifically, the RIC in the O-RAN system determines the terminal reporting information corresponding to the first PDU session.

The terminal reports information, which can be various information. Such as: radio resource prediction information and/or radio resource allocation information based on QoS performance requirements.

S205, the terminal report information is added into the PDU conversation resource interface notice information, and the PDU conversation resource interface notice information is sent to the core network through the communication interface.

Specifically, the RIC in the O-RAN system adds the terminal reporting information to the PDU session resource interface notification message, and sends the PDU session resource interface notification message to the core network through the communication interface. Wherein the communication interface may be an N2-O interface between the RIC and the core network.

In an example scenario, as shown in fig. 6, RIC (i.e., near-RT RIC and Non-RT RIC) may send PDU session resource interface notification messages to the core network over the communication interface, such as: AMF in core network. In addition, the AMF in the core network may also retransmit the PDU session resource interface notification message to the SMF in the core network.

The content of the PDU session resource interface notification message may be as shown in fig. 7.

In addition, the cell/group name in fig. 7 includes the protocol data unit session resource message forwarding, and the message content of the protocol data unit session resource message forwarding may be as shown in fig. 8.

As can be seen from the above embodiments, by a RIC for use in an O-RAN system, the RIC has the capability to communicate with a core network, comprising: determining a communication interface for communicating with a core network; receiving PDU session resource establishment notification message sent by a core network through a communication interface; establishing a corresponding first PDU session according to the PDU session resource establishment notification message; determining terminal reporting information corresponding to a first PDU session; the terminal reporting information is added into the PDU conversation resource interface notification message, and the PDU conversation resource interface notification message is sent to the core network through the communication interface, so that the information interaction between the core network and the RIC is realized, and a basis is provided for the core network to adjust the RAN strategy and parameters.

In an alternative embodiment, the RIC may be a Near-RT RIC, which is connected to a Non-RT RIC in an O-RAN system via an A1 interface. The A1 interface can be bidirectional transmission, and can send the strategy or information from the Non-RT RIC to the Near-RT RIC, and can feed back the execution result of the Near-RT RIC strategy to the Non-RT RIC.

When the determining a communication interface for communicating with the core network in S201 in the above information interaction method is performed, it may include:

s201-mode 1, if the Near-RT RIC is provided with a first interface directly connected with the core network, determining that the first interface is a communication interface for communicating with the core through the Near-RT RIC.

Specifically, for example, in the system architecture schematic of the O-RAN shown in fig. 1, when there is an N2-O interface directly connected between the Near-RT RIC and the core network, the N2-O interface is determined to be a communication interface where the Near-RT RIC communicates with the core.

S201-mode 2, if the Near-RT RIC is not provided with the first interface, the Non-RT RIC is provided with a second interface directly connected with the core network, and the A1 interface and the second interface are determined to be communication interfaces for the Near-RT RIC to communicate with the core.

Specifically, for example, in the system architecture schematic of the O-RAN shown in fig. 1, when the N2-O interface is not set in the Near-RT RIC, and the N2-O interface directly connected to the core network is set in the Non-RT RIC, it is determined that the N2-O interface directly connected to the A1 interface and the Non-RT RIC and the core network is a communication interface for the Near-RT RIC to communicate with the core.

In an alternative embodiment, the RIC may be a Non-RT RIC, where the Non-RT RIC is connected to a Near-RT RIC in the O-RAN system through an A1 interface, and when the determining in S201 in the information interaction method is performed, a communication interface for communicating with the core network may further include:

s201-3 rd mode, if the Non-RT RIC is provided with a third interface directly connected with the core network, determining that the third interface is a communication interface for communication between the Non-RT RIC and the core.

Specifically, for example, in the system architecture schematic of the O-RAN shown in fig. 1, when the Non-RT RIC is provided with an N2-O interface directly connected to the core network, the N2-O interface is determined to be a communication interface where the Non-RT RIC communicates with the core.

S201-4 th mode, if no third interface is set in the Non-RT RIC, and a fourth interface directly connected with the core network is set in the Near-RT RIC, determining that the A1 interface and the fourth interface are communication interfaces for communication between the Non-RT RIC and the core.

Specifically, for example, in the system architecture schematic of the O-RAN shown in fig. 1, when the N2-O interface is not set in the Non-RT RIC, and the N2-O interface directly connected to the core network is set in the Near-RT RIC, it is determined that the N2-O interface directly connected to the A1 interface and the Near-RT RIC and the core network is a communication interface for communicating between the Non-RT RIC and the core.

According to the embodiment, the information can be transmitted in two directions through the A1 interface between the Near-RT RIC and the Non-RT RIC, meanwhile, the Near-RT RIC and the Non-RT RIC can respectively communicate with the core network directly, and also can communicate with the core network through the A1 interface and the N2-O interface, and the communication mode is two-way, so that the diversity of information interaction between the Near-RT RIC or the Non-RT RIC and the core network can be realized, and the improvement of the information interaction efficiency is facilitated.

In an optional embodiment, when the terminal determining that the first PDU session corresponds to the terminal in S204 in the above information interaction method is executed, the method may include:

s2041, detecting that the terminal reporting triggering condition is met.

Specifically, the RIC detects that a trigger condition reported by the terminal is satisfied, where the trigger condition may include, but is not limited to, the following three ways:

the first is active triggering: when radio resources on the RAN side cannot meet the requirements of quality of service QoS flows, such as when the prediction of RIC indicates that QoS policies may need to be adjusted.

The second is passive triggering: the RIC receives indication information that the core network needs to perform QoS policy adjustment, such as adjusting the priority of QoS.

The third is active triggering and passive triggering: namely, when the wireless resource at the RAN side can not meet the requirement of the QoS flow, actively triggering; and the RIC receives the indication information that the core network needs to adjust the QoS strategy.

S2042, according to the terminal reporting triggering condition, acquiring terminal reporting information corresponding to the first PDU session.

Specifically, the Near-RT RIC or the Non-RT RIC acquires terminal reporting information corresponding to the PDU session resource establishment notification message according to the terminal reporting triggering condition.

The terminal reporting information may include, but is not limited to, the following four information:

first kind: radio resource prediction information based on QoS performance requirements;

second kind: radio resource allocation information;

third kind: radio resource prediction information and radio resource allocation information based on QoS performance requirements.

Fourth kind: terminal position information (including predicted information of the terminal trajectory).

The embodiment can determine conditions for information interaction and information for interaction between the RIC and the core network by determining various triggering conditions and various information reported by the terminal corresponding to the first PDU session, thereby realizing information interaction between the RIC and the core network.

In an optional embodiment, the information interaction manner may further include:

s206, receiving PDU conversation resource update notification information sent by the core network through the communication interface.

Specifically, the RIC (i.e., near-RT RIC and Non-RT RIC) receives the PDU session resource update notification message sent by the core network through the communication interface.

The communication interface may be four interfaces set forth in the information interaction method described above.

S207, updating the first PDU session according to the PDU session resource update notification message.

Specifically, the RIC (i.e., near-RT RIC and Non-RT RIC) updates the first PDU session based on the PDU session resource update notification message.

In an example scenario, as shown in fig. 9, the core network transmits a PDU session resource update notification message to RIC (i.e., near-RT RIC and Non-RT RIC) through the N2-O interface, and the message content of the PDU session resource update notification message may be as shown in fig. 10.

According to the embodiment, the PDU conversation resource updating notification message sent by the core network is received through the communication interface, so that the RIC can update the first PDU conversation according to the PDU conversation resource updating notification message, the updating of the PDU conversation according to the indication of the core network is achieved, and the accuracy of the PDU conversation is improved.

s208, receiving PDU session resource release notification information sent by the core network through the communication interface.

Specifically, the RIC (i.e., near-RT RIC and Non-RT RIC) receives the PDU session resource release notification message sent by the core network through the communication interface.

S209, according to the PDU conversation resource release notification message, the first PDU conversation is released.

Specifically, the RIC (i.e., near-RT RIC and Non-RT RIC) releases the first PDU session according to the PDU session resource release notification message.

In an example scenario, as shown in fig. 11, the core network may send a PDU session resource release notification message to RIC (i.e., near-RT RIC and Non-RTRIC) through an N2-O interface, and the message content of the PDU session resource release notification message may be as shown in fig. 12.

According to the embodiment, the PDU session resource release notification message sent by the core network is received through the communication interface, so that the RIC can release the first PDU session according to the PDU session resource release notification message, thereby realizing that the RIC finishes the release of the PDU session according to the indication of the core network and improving the efficiency of the PDU session.

Fig. 13 is a flow chart of an information interaction method provided by an embodiment of the present application, where the method is used in a core network, and the core network has a capability of communicating with RIC in an O-RAN system, and as shown in fig. 13, the method may include the following steps:

s1301, determining a communication interface for communicating with the RIC.

Specifically, the core network determines its communication interface with the RIC.

For example, the interface may be an N2-O interface as shown in FIG. 1.

The protocol structure of the N2-O interface is shown in fig. 3, and the application protocol of the N2-O interface includes: a stream control transmission protocol; an internetworking protocol; a data link layer; physical layer.

S1302, sending PDU session resource establishment notification message to RIC through communication interface, so that RIC establishes corresponding first PDU session according to PDU session resource establishment notification message.

For example, in an exemplary scenario, a PDU session resource establishment notification message sent by the core network may be received through an N2-O interface between RIC in the O-RAN system as shown in fig. 1, where the message may be sent by an SMF in the core network to an AMF in the core network, and then the AMF sends the message to the RAN.

Specifically, the core network sends a PDU session resource establishment notification message to the RIC through the communication interface, and the RIC establishes a corresponding first PDU session according to the PDU session resource establishment notification message sent by the core network.

S1303, receiving a PDU conversation resource interface notification message sent by the RIC through the communication interface, wherein the PDU conversation resource interface notification message comprises terminal reporting information corresponding to the first PDU conversation.

Specifically, the core network receives a PDU session resource interface notification message sent by the RIC, where the PDU session resource interface notification message includes terminal reporting information corresponding to the first PDU session, where the terminal reporting information may have multiple kinds of information. Such as: radio resource prediction information and/or radio resource allocation information based on QoS performance requirements.

In an example scenario, as shown in fig. 6, the core network receives a PDU session resource interface notification message sent by RIC (i.e., near-RT RIC and Non-RT RIC) over the communication interface, the content of the PDU session resource interface notification message is shown in fig. 7, and the message content of the PDU session resource message forwarding is shown in fig. 8.

As can be seen from the above embodiments, by using the information interaction method for a core network having the capability to communicate with RIC in an O-RAN system, comprising: determining a communication interface for communicating with the RIC; transmitting PDU session resource establishment notification information to the RIC through the communication interface, so that the RIC establishes a corresponding first PDU session according to the PDU session resource establishment notification information; and receiving a PDU session resource interface notification message sent by the RIC through the communication interface, wherein the PDU session resource interface notification message comprises terminal reporting information corresponding to the first PDU session, so that information interaction between the core network and the RIC is realized, and a basis is provided for the core network to adjust the RAN strategy and parameters.

In an alternative embodiment, the RIC may be a Near-RT RIC, which is connected to a Non-RT RIC in an O-RAN system via an A1 interface. The A1 interface can be bidirectional transmission, and can send the strategy or information from the Non-RT RIC to the Near-RT RIC, and the Near-RT RIC can also feed back the strategy execution result to the Non-RT RIC.

When the communication interface for communicating with the RIC is determined in S1301 in the above information interaction method, the method may include the steps of:

s1301-1 st way, if the Near-RT RIC is provided with a first interface directly connected with the core network, determining that the first interface is a communication interface for communicating with the core through the Near-RT RIC.

S1301-2, if the Near-RT RIC is not provided with the first interface, the Non-RT RIC is provided with a second interface directly connected with the core network, and the A1 interface and the second interface are determined to be communication interfaces for the Near-RT RIC and the core.

In an alternative embodiment, the RIC may be a Non-RT RIC, where the Non-RT RIC is connected to a Near-RT RIC in the O-RAN system through an A1 interface, and when the determining in S1301 in the information interaction method is performed, a communication interface that communicates with the RIC may further include:

s1301-3, if the Non-RT RIC is provided with a third interface directly connected with the core network, determining that the third interface is a communication interface for communication between the Non-RT RIC and the core.

S1301-4 mode, if no third interface is set in the Non-RT RIC, the Near-RT RIC is provided with a fourth interface directly connected with the core network, and the A1 interface and the fourth interface are determined to be communication interfaces for communication between the Non-RT RIC and the core.

According to the embodiment, the two-way transmission of information can be performed through the A1 interface between the Near-RT RIC and the Non-RT RIC, meanwhile, the core network can be respectively and directly communicated with the Near-RT RIC and the Non-RT RIC, and also can be communicated with the Near-RT RIC and the Non-RT RIC through the A1 interface and the N2-O interface, and the communication mode is two-way, so that the diversity of information interaction between the core network and the Near-RT RIC or the Non-RT RIC can be realized, and the improvement of the information interaction efficiency is facilitated.

In an alternative embodiment, when the terminal in S1303 in the above information interaction method is executed, the terminal reporting information may include, but is not limited to, the following four types of information:

second kind: radio resource allocation information;

Fourth kind: terminal position information (including track information of the terminal).

In an optional embodiment, the information interaction method may further include:

the core network may perform QoS policy adjustment according to the radio resource prediction information, the radio resource allocation information, the radio resource prediction information, and the radio resource allocation information based on QoS performance requirements.

Specifically, the processing manner of the core network for QoS policy adjustment may be: the core network obtains information and adjusts QoS parameters, such as priority, guaranteed flow rate, etc., through PCF (Policy Control Function, policy adjustment function).

As can be seen from the above embodiments, by determining that the terminal reporting information may include multiple information, the core network performs QoS policy adjustment according to the radio resource prediction information, the radio resource allocation information, the radio resource prediction information, and the radio resource allocation information that may be based on QoS performance requirements, and may determine information about information interaction between the RIC and the core network, so as to implement information interaction between the core network and the RIC (i.e., near-RT RIC and Non-RT RIC), and perform QoS policy adjustment.

s1304, a PDU session resource update notification message is sent to the RIC via the communication interface to cause the RIC to update the first PDU session according to the PDU session resource update notification message.

Specifically, the core network sends the PDU session resource update notification message to the RICs (i.e., near-RT RICs and Non-RT RICs) through the communication interface, so that the RICs (i.e., near-RT RICs and Non-RT RICs) update the first PDU session according to the PDU session resource update notification message, where the communication interface may be four interfaces set forth in the above information interaction method.

In an example scenario, as shown in fig. 9, the core network transmits a PDU session resource update notification message to RIC (i.e., near-RT RIC and Non-RT RIC) over the N2-O interface, the message content of which is shown in fig. 10.

According to the embodiment, the PDU conversation resource updating notification message is sent to the RIC through the communication interface, so that the RIC can update the first PDU conversation according to the PDU conversation resource updating notification message, the updating of the PDU conversation according to the indication of the core network is achieved, and the accuracy of the PDU conversation is improved.

s1305, the PDU session resource release notification message is sent to the RIC through the communication interface, so that the RIC releases the first PDU session according to the PDU session resource release notification message.

Specifically, the core network sends PDU session resource release notification messages to RICs (i.e., near-RT RICs and Non-RT RICs) through the communication interface, so that the RICs (i.e., near-RT RICs and Non-RT RICs) release the first PDU session according to the PDU session resource release notification messages.

In an example scenario, as shown in fig. 11, the core network sends a PDU session resource release notification message to RIC (i.e., near-RT RIC and Non-RT RIC) over the N2-O interface, the message content of which is shown in fig. 12.

As can be seen from the above embodiments, the PDU session resource release notification message is sent to the RIC through the communication interface, so that the RIC can release the first PDU session according to the PDU session resource release notification message, thereby implementing that the RIC completes the release of the PDU session according to the indication of the core network, and improving the efficiency of the PDU session.

Fig. 14 is a schematic structural diagram of an information interaction device according to an embodiment of the present application, where the information interaction device is used in an RIC in an O-RAN system, and the RIC has a capability of communicating with a core network, and includes a memory 1420, a transceiver 1400, and a processor 1410.

Where in FIG. 14, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by the processor 1410 and various circuits of the memory represented by the memory 1420, are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 1400 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 1410 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1410 in performing operations.

The processor 1410 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA), or a complex programmable logic device (Complex Programmable Logic Device, CPLD), and the processor may also employ a multi-core architecture.

A memory 1420 for storing a computer program; a transceiver 1400 for receiving and transmitting data under the control of the processor; a processor 1410 for reading the computer program in the memory and performing the following operations:

determining a communication interface for communicating with the core network;

In an alternative embodiment, the RIC is a Near real-time radio access network controller, near-RT RIC, and the Near-RT RIC is connected to a Non-real time radio access network controller, non-RT RIC, in the O-RAN system through an A1 interface;

In an alternative embodiment, the RIC is a Non-RT RIC, and the Non-RT RIC is connected to a Near-RT RIC in the O-RAN system through an A1 interface;

and if the Non-RT RIC is not provided with the third interface, the Near-RT RIC is provided with a fourth interface which is directly connected with the core network, and the A1 interface and the fourth interface are the communication interfaces.

In an optional embodiment, the determining the terminal reporting information corresponding to the first PDU session includes:

Detecting that a terminal reporting triggering condition is met;

In an optional embodiment, the reporting, by the terminal, a trigger condition includes: the radio resources at the RAN side cannot meet the requirements of QoS flows; and/or receiving indication information that the core network needs to perform QoS policy adjustment;

In an alternative embodiment, the terminal report information further includes terminal location information.

In an alternative embodiment, the method further comprises:

Fig. 15 is a schematic structural diagram of an information interaction device according to an embodiment of the present application, where the information interaction device is used in a core network, and the core network has a capability of communicating with RIC in an O-RAN system, and the capability includes a memory 1520, a transceiver 1500, and a processor 1510.

Wherein in fig. 15, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 1510 and various circuits of memory represented by memory 1520, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 1500 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 1510 is responsible for managing the bus architecture and general processing, and the memory 1520 may store data used by the processor 1510 in performing operations.

The processor 1510 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.

A memory 1520 for storing a computer program; a transceiver 1500 for transceiving data under the control of the processor; a processor 1510 for reading the computer program in the memory and performing the following operations:

determining a communication interface for communicating with the RIC;

In an optional embodiment, the terminal reporting information includes: radio resource prediction information and/or radio resource allocation information based on QoS performance requirements;

The processor is also configured to perform the following operations:

In an alternative embodiment, the method further comprises:

It should be noted that, the above device provided in the embodiment of the present application can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.

Fig. 16 is a schematic structural diagram of an information interaction device according to an embodiment of the present application, where the device is used in an RIC in an O-RAN system, and the RIC has a capability of communicating with a core network, and includes:

a first determining module 161, configured to determine a communication interface for communicating with the core network;

a first receiving module 162, configured to receive, through the communication interface, a protocol data unit PDU session resource establishment notification message sent by the core network;

a session establishment module 163, configured to establish a corresponding first PDU session according to the PDU session resource establishment notification message;

a second determining module 164, configured to determine terminal reporting information corresponding to the first PDU session;

a notification message sending module 165, configured to add the terminal reporting information to a PDU session resource interface notification message, and send the PDU session resource interface notification message to the core network through the communication interface.

the first determining module 161 may include:

a first determining submodule, configured to determine, if the Near-RT RIC is provided with a first interface directly connected to the core network, that the first interface is the communication interface;

and the second determining submodule is used for determining the A1 interface and the second interface to be the communication interface if the first interface is not set by the Near-RT RIC and the second interface which is directly connected with the core network is set by the Non-RT RIC.

the first determining module 161 may include:

a third determining submodule, configured to determine, if the Non-RT RIC is provided with a third interface directly connected to the core network, that the third interface is the communication interface;

And a fourth determining submodule, configured to determine that the A1 interface and the fourth interface are the communication interfaces if the Non-RT RIC is not provided with the third interface, and the Near-RT RIC is provided with the fourth interface directly connected with the core network.

In an alternative embodiment, the second determining module 164 may include:

a fifth determining submodule, configured to detect that a trigger condition reported by the terminal is met;

and a sixth determining submodule, configured to obtain terminal reporting information corresponding to the first PDU session according to the terminal reporting trigger condition.

In an optional embodiment, the reporting, by the terminal in the fifth determining submodule, a trigger condition includes: the radio resources at the RAN side cannot meet the requirements of QoS flows; and/or receiving indication information that the core network needs to perform QoS policy adjustment;

the reporting information by the terminal in the sixth determining submodule may include: radio resource prediction information and/or radio resource allocation information based on QoS performance requirements. In an alternative embodiment, the terminal reporting information in the sixth determining submodule may further include terminal location information.

In an alternative embodiment, the information interaction device may further include:

a second receiving module, configured to receive, through the communication interface, a PDU session resource update notification message sent by the core network;

and the updating module is used for updating the first PDU session according to the PDU session resource updating notification message.

a third receiving module, configured to receive, through the communication interface, a PDU session resource release notification message sent by the core network;

and the release module is used for releasing the first PDU session according to the PDU session resource release notification message.

Fig. 17 is a schematic structural diagram of an information interaction device according to an embodiment of the present application, where the device is used in a core network, and the core network has a capability of communicating with RIC in an O-RAN system, and includes:

a communication interface determination module 171 for determining a communication interface for communicating with the RIC;

a first sending module 172, configured to send a protocol data unit PDU session resource establishment notification message to the RIC through the communication interface, so that the RIC establishes a corresponding first PDU session according to the PDU session resource establishment notification message;

a notification message receiving module 173, configured to receive a PDU session resource interface notification message sent by the RIC through the communication interface, where the PDU session resource interface notification message includes terminal reporting information corresponding to the first PDU session.

In an alternative embodiment, the RIC is a Near-RT RIC, and the Near-RT RIC is connected to a Non-RT RIC in the O-RAN system through an A1 interface;

the communication interface determining module 171 may include:

a first communication interface determining submodule, configured to determine that the first interface is the communication interface if the Near-RT RIC is provided with the first interface directly connected to the core network;

And the second communication interface determining submodule is used for determining the A1 interface and the second interface to be the communication interfaces if the first interface is not set by the Near-RT RIC and the second interface directly connected with the core network is set by the Non-RT RIC.

the communication interface determining module 171 may include:

a third communication interface determining submodule, configured to determine that the third interface is the communication interface if the Non-RT RIC is provided with the third interface directly connected to the core network;

and a fourth interface determining submodule, configured to determine that the A1 interface and the fourth interface are the communication interfaces if the Non-RT RIC is not provided with the third interface and the Near-RT RIC is provided with the fourth interface directly connected with the core network.

In an alternative embodiment, the reporting information of the terminal in the notification message receiving module 173 may include: radio resource prediction information and/or radio resource allocation information based on QoS performance requirements; the information interaction device further includes:

And the strategy adjustment module is used for carrying out QoS strategy adjustment according to the wireless resource prediction information and/or the wireless resource allocation information based on the QoS performance requirement.

In an alternative embodiment, the reporting information of the terminal in the notification message receiving module 173 may further include: terminal position information.

In an alternative embodiment, the information interaction device further includes:

and the updating module is used for sending a PDU session resource updating notification message to the RIC through the communication interface so that the RIC updates the first PDU session according to the PDU session resource updating notification message.

and the release module is used for sending a PDU session resource release notification message to the RIC through the communication interface so that the RIC releases the first PDU session according to the PDU session resource release notification message.

As can be seen from the above embodiments, by using the information interaction device for a core network having the capability to communicate with RIC in an O-RAN system, comprising: determining a communication interface for communicating with the RIC; transmitting PDU session resource establishment notification information to the RIC through the communication interface, so that the RIC establishes a corresponding first PDU session according to the PDU session resource establishment notification information; and receiving a PDU session resource interface notification message sent by the RIC through the communication interface, wherein the PDU session resource interface notification message comprises terminal reporting information corresponding to the first PDU session, so that information interaction between the core network and the RIC is realized, and a basis is provided for the core network to adjust the RAN strategy and parameters.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only memory (ROM), a random access memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In another aspect, an embodiment of the present application further provides a processor readable storage medium, where a computer program is stored, where the computer program is configured to cause the processor to perform the method provided in the foregoing embodiments, where the method includes: information interaction methods for RIC in O-RAN systems, or information interaction methods for core networks.

The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic storage (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical storage (e.g., CD, DVD, BD, HVD, etc.), semiconductor storage (e.g., ROM, EPROM, EEPROM, nonvolatile storage (NAND FLASH), solid State Disk (SSD)), and the like.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. An information interaction method for a radio access network controller RIC in an open radio access network O-RAN system, said RIC having the capability to communicate with a core network, comprising:

determining a communication interface for communicating with the core network;

adding the terminal report information into a PDU session resource interface notification message, and sending the PDU session resource interface notification message to the core network through the communication interface;

the RIC is Near-real-time radio access network controller Near-RT RIC, and the Near-RT RIC is connected with Non-real-time radio access network controller Non-RT RIC in the O-RAN system through an A1 interface;

if the first interface is not set by the Near-RT RIC, and a second interface directly connected with the core network is set by the Non-RT RIC, determining that the A1 interface and the second interface are the communication interfaces; or alternatively, the process may be performed,

the RIC is a Non-RT RIC, and the Non-RT RIC is connected with a Near-RT RIC in the O-RAN system through an A1 interface;

2. The method of claim 1, wherein the determining that the terminal corresponding to the first PDU session reports information comprises:

detecting that a terminal reporting triggering condition is met;

3. The method of claim 2, wherein the reporting, by the terminal, the trigger condition includes: the radio resources at the RAN side cannot meet the requirements of QoS flows; and/or receiving indication information that the core network needs to perform QoS policy adjustment;

4. A method according to claim 3, wherein the terminal reporting information further comprises terminal location information.

5. The method as recited in claim 1, further comprising:

6. The method as recited in claim 1, further comprising:

7. An information interaction method, characterized in that the method is used for a core network, said core network having the capability to communicate with a radio access network controller RIC in an open radio access network O-RAN system, comprising:

determining a communication interface for communicating with the RIC;

receiving a PDU (protocol data unit) session resource interface notification message sent by the RIC through the communication interface, wherein the PDU session resource interface notification message comprises terminal reporting information corresponding to the first PDU session;

8. The method of claim 7, wherein the reporting information by the terminal comprises: radio resource prediction information and/or radio resource allocation information based on QoS performance requirements;

the information interaction method further comprises the following steps:

9. The method of claim 8, wherein the terminal reporting information further comprises terminal location information.

10. The method as recited in claim 7, further comprising:

11. The method as recited in claim 7, further comprising:

12. An information interaction device for a radio access network controller RIC in an open radio access network O-RAN system, the RIC having the capability to communicate with a core network, comprising a memory, a transceiver, and a processor:

A memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

determining a communication interface for communicating with the core network;

13. The apparatus of claim 12, wherein the determining that the terminal corresponding to the first PDU session reports information comprises:

detecting that a terminal reporting triggering condition is met;

14. The apparatus of claim 13, wherein the terminal reporting the trigger condition comprises: the radio resources at the RAN side cannot meet the requirements of QoS flows; and/or receiving indication information that the core network needs to perform QoS policy adjustment;

15. The apparatus of claim 14, wherein the terminal reporting information further comprises terminal location information.

16. The apparatus as recited in claim 12, further comprising:

17. The apparatus as recited in claim 12, further comprising:

18. An information interaction device for a core network having the capability to communicate with a radio access network controller RIC in an open radio access network O-RAN system, comprising a memory, a transceiver, a processor:

Determining a communication interface for communicating with the RIC;

19. The apparatus of claim 18, wherein the terminal reporting information comprises: radio resource prediction information and/or radio resource allocation information based on QoS performance requirements;

the processor is also configured to perform the following operations:

20. The apparatus of claim 19, wherein the terminal reporting information further comprises terminal location information.

21. The apparatus as recited in claim 18, further comprising:

22. The apparatus as recited in claim 18, further comprising:

23. An information interaction device for a radio access network controller, RIC, in an open radio access network, O-RAN, system, said RIC having the capability to communicate with a core network, comprising:

a notification message sending module, configured to add the terminal reporting information to a PDU session resource interface notification message, and send the PDU session resource interface notification message to the core network through the communication interface;

the first determination module further includes:

a second determining submodule, configured to determine that, if the first interface is not set by the Near-RT RIC, the Non-RT RIC is provided with a second interface directly connected to the core network, and the A1 interface and the second interface are the communication interfaces; or alternatively, the process may be performed,

the first determination module further includes:

24. An information interaction device for a core network, said core network having the capability to communicate with a radio access network controller RIC in an open radio access network O-RAN system, comprising:

a notification message receiving module, configured to receive a PDU session resource interface notification message sent by the RIC through the communication interface, where the PDU session resource interface notification message includes terminal reporting information corresponding to the first PDU session;

the RIC is a Near-RT RIC, and the Near-RT RIC is connected with a Non-RT RIC in the O-RAN system through an A1 interface;

the communication interface determination module further includes:

A second communication interface determining submodule, configured to determine that, if the Near-RT RIC does not set the first interface, the Non-RT RIC is set with a second interface directly connected to the core network, the A1 interface and the second interface are the communication interfaces; or alternatively, the process may be performed,

the communication interface determination module further includes:

25. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the method of any one of claims 1 to 6 or the method of any one of claims 7 to 11.