CN114630265A - Near real-time wireless intelligent controller architecture and wireless function enhancement method thereof - Google Patents
Near real-time wireless intelligent controller architecture and wireless function enhancement method thereof Download PDFInfo
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Abstract
A near real-time wireless intelligent controller architecture and a wireless function enhancement method thereof are provided, wherein the near real-time wireless intelligent controller architecture comprises: the system comprises a cloud platform, a near real-time wireless intelligent controller (nRT RIC) platform and a wireless functional entity xAPP; the cloud platform is used for carrying out life cycle management on the nRT RIC platform and the xAPP software carriers, configuring routing paths among the software carriers, and carrying out message transmission between the xAPs and the nRT RIC platform; the nRT RIC platform runs on the cloud platform and is used for managing the xAPP and/or realizing part or all of wireless functions; the xAPP runs on the nRT RIC platform and is used for realizing the enhancement function of the wireless function. The invention can realize the combination of SBA decentralization and management and control of main and auxiliary functions of an application layer, provides a unified solution for nRT RIC basic functions and increment functions, and can realize AI drive and nRT RIC function enhancement of a digital twin simulation environment.
Description
Technical Field
The invention relates to the technical field of mobile communication, in particular to a near real-time wireless intelligent controller architecture and a wireless function enhancement method thereof.
Background
Fig. 1 shows an overall architecture of an open radio access network (O-RAN) given by the international union of O-RAN (O-RAN Alliance). In this architecture, a non-Real-Time wireless Intelligent Controller (non-RT RIC) and a Near-Real-Time wireless Intelligent Controller (Near Real-Time Radio Intelligent Controller, nRT RIC, which is also sometimes referred to herein as Near-RT RIC) are introduced.
In an O-RAN overall architecture scheme, functional entities of xApp are introduced into an nRT RIC. The xApp runs related Artificial Intelligence (AI) content, and interacts with an nrT RIC architecture (Near-RT RIC frame) through an Open application program interface (Open API), so as to realize the control of an E2 node (E2 node). How to control the wireless functional entity is an urgent problem to be solved.
Disclosure of Invention
At least one embodiment of the present invention provides a method and a device for enhancing a wireless function of a near real-time wireless intelligent controller architecture, which can implement control of a wireless function entity based on the near real-time wireless intelligent controller architecture of an SBA.
According to one aspect of the invention, at least one embodiment provides a near real-time wireless intelligent controller architecture, comprising: the system comprises a cloud platform, a near real-time wireless intelligent controller (nRT RIC) platform and a wireless functional entity xAPP; wherein,
the cloud platform is used for managing the nRT RIC platform and the software carriers of the xAPP, configuring a routing path among the software carriers, and/or configuring the routing path among the xAPPs and performing message transmission between the xAPP and the nRT RIC platform;
the nRT RIC platform runs on the cloud platform and is used for managing the xAPP and/or realizing part or all of wireless functions;
the xAPP runs on the nRT RIC platform and is used for realizing the enhancement function of the wireless function.
Furthermore, in accordance with at least one embodiment of the present invention, the xAPP is further configured to obtain measurement parameters through the nRT RIC platform, execute the enhanced function based on the measurement parameters, generate at least one of control information, policy information, information on demand for wireless management by an algorithm, and indication information, and send the generated information to the nRT RIC platform;
the nRT RIC platform is further configured to receive measurement parameters reported by the functional entity in the radio access network and send the measurement parameters to the corresponding xAPP, and/or receive information sent by the xAPP, and determine whether to operate the received information or send the received information to the base station.
In addition, according to at least one embodiment of the present invention, the nRT RIC platform is further configured to implement a part or all of the radio resource management RRM function, and send a radio resource control RRC control command requirement generated by the RRM function to a functional entity in the radio access network through interaction with the radio access network.
Furthermore, according to at least one embodiment of the present invention, the nRT RIC platform manages the xAPP, and specifically includes at least one of: responding to an expansion process, an activation process, a registration process and a management process of the xAPP, and configuring and maintaining routing information from the xAPP to the nrT RIC platform.
In addition, according to at least one embodiment of the present invention, the xAPP is further configured to send a registration request message to the nRT RIC platform in a request or response manner, where the registration request message carries at least one of identification information, function description information, measurement parameter description information, and output result description information of the xAPP;
the nRT RIC platform is further configured to receive the registration request message, and when the registration is successful, perform at least one of the following operations: establishing an information exchange link with the xAPP, configuring initial parameters of the xPP start, and providing measurement parameters for the xPP.
In addition, according to at least one embodiment of the present invention, the xAPP is further configured to apply for a service to the nRT RIC platform in a subscription or notification manner, where the subscription or notification includes periodic subscription or periodic reporting, and/or event-triggered subscription or event-triggered reporting;
the nRT RIC platform is further configured to send a notification to the xAPP in response to the service application of the xAPP, where the notification includes: the nRT RIC platform provides service content and/or obtains service indication information.
Furthermore, according to at least one embodiment of the present invention, the xAPP is further configured to send a service request message to the nRT RIC platform in a request or response manner, where the service request message carries identification information of the xAPP and the provided service information, and the service information includes at least one of the following: strategy or control indication information of radio resource management, user service management strategy or control indication information, and management strategy or control indication information of connection between devices;
and the nRT RIC platform is further configured to receive the service request message and return a service response message indicating whether service information is available to the xAPP.
Furthermore, in accordance with at least one embodiment of the present invention, the xAPP interacts with the nRT RIC platform through a logical API interface.
According to another aspect of the present invention, at least one embodiment provides a wireless functionality enhancement method for a near real-time wireless intelligent controller architecture, the near real-time wireless intelligent controller architecture comprising: the system comprises a cloud platform, a near real-time wireless intelligent controller (nRT RIC) platform and a wireless functional entity xAPP; the method comprises the following steps:
through the cloud platform, life cycle management is carried out on the nRT RIC platform and the xAPP software carriers, routing paths among the software carriers are configured, and message transmission is carried out between the xAPs and the nRT RIC platform;
managing the xAPP through the nRT RIC platform running on the cloud platform, and/or realizing partial or all wireless functions;
and the xAPP running on the nRT RIC platform realizes the enhancement function of the wireless function.
Further, in accordance with at least one embodiment of the present invention, there is also provided:
obtaining measurement parameters via the nRT RIC platform by the xAPP, executing the enhanced function based on the measurement parameters, generating at least one of control information, policy information, demand information for wireless management by an algorithm, and indication information, and transmitting the generated information to the nRT RIC platform;
and receiving the measurement parameters reported by the functional entity in the wireless access network and sending the measurement parameters to the corresponding xAPP through the nRT RIC platform, and/or receiving information sent by the xAPP and judging whether to operate the received information or send the received information to the base station.
Further, in accordance with at least one embodiment of the present invention, there is also provided:
and realizing part or all of the Radio Resource Management (RRM) functions through the nRT RIC platform, and sending the requirements of Radio Resource Control (RRC) control commands generated by the RRM functions to a functional entity in the radio access network through interaction with the radio access network.
Furthermore, according to at least one embodiment of the present invention, the nRT RIC platform manages the xAPP, and specifically includes at least one of: responding to an expansion process, an activation process, a registration process and a management process of the xAPP, and configuring and maintaining routing information from the xAPP to the nrT RIC platform.
Further, in accordance with at least one embodiment of the present invention, there is also provided:
sending a registration request message to the nRT RIC platform by the xAPP in a request or response manner, where the registration request message carries at least one of identification information, function description information, measurement parameter description information, and output result description information of the xAPP;
receiving, by the nRT RIC platform, the registration request message, and when the registration is successful, performing at least one of the following operations: establishing an information exchange link with the xAPP, configuring initial parameters of the xPP start, and providing measurement parameters for the xPP.
Further, in accordance with at least one embodiment of the present invention, there is also provided:
applying for service to the nRT RIC platform through the xAPP in a subscription or notification manner, wherein the subscription or notification includes periodic subscription or periodic reporting, and/or event-triggered subscription or event-triggered reporting;
sending a notification to the xAPP in response to the service application of the xPP through the nrT RIC platform, wherein the notification comprises: the nRT RIC platform provides service content and/or obtains service indication information.
Further, in accordance with at least one embodiment of the present invention, there is also provided:
sending a service request message to the nRT RIC platform by the xAPP in a request or response manner, where the service request message carries identification information of the xAPP and the provided service information, and the service information includes at least one of the following: strategy or control indication information of radio resource management, user service management strategy or control indication information, and management strategy or control indication information of connection between devices;
and receiving the service request message through the nRT RIC platform, and returning a service response message indicating whether service information is available to the xAPP.
Furthermore, in accordance with at least one embodiment of the present invention, the xAPP interacts with the nRT RIC platform through a logical API interface.
In accordance with another aspect of the present invention, at least one embodiment provides a near real-time wireless intelligent controller architecture, comprising a processor and a transceiver, wherein,
the processor is used for running an nRT RIC platform on a cloud platform, running a wireless functional entity xAPP on the nRT RIC platform, managing software carriers of the nRT RIC platform and the xAPP through the cloud platform, configuring a routing path among the software carriers, and/or configuring the routing path among the xAPPs and performing message transmission between the xAPP and the nRT RIC platform; managing the xAPP through the nRT RIC platform, and/or realizing partial or all wireless functions; and realizing the enhancement function of the wireless function through the xAPP.
According to another aspect of the invention, at least one embodiment provides a near real-time wireless intelligent controller architecture, comprising: a processor, a memory and a program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method as described above.
According to another aspect of the invention, at least one embodiment provides a computer-readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of the method as described above.
Compared with the prior art, the near real-time wireless intelligent controller architecture and the wireless function enhancement method thereof provided by the embodiment of the invention can realize the combination of SBA decentralization and the management and control of main and auxiliary functions of an application layer, provide a unified solution for the basic function and the increment function of the nRT RIC, and realize the enhancement of AI drive and the function of the nRT RIC in a digital twin simulation environment.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a diagram of an overall O-RAN architecture of the O-RAN International Union organization;
FIG. 2 is a schematic diagram of an overall design of a near real-time wireless intelligent controller;
FIG. 3 is a schematic diagram of a near real-time wireless intelligent controller architecture according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a registration process of a wireless functional entity xAPP according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an embodiment of the invention, in which xApp applies for a wireless functional service to an nRT RIC Framework;
FIG. 6 is a schematic diagram of xApp providing radio functions to an nRT RIC Framework in accordance with an embodiment of the present invention;
FIG. 7 is a schematic diagram of a logical connection relationship between xApp and an nRT RIC Framework according to an embodiment of the present invention;
FIG. 8 is a diagram of functional layers in interaction between xApp and nRT RIC Framework in an embodiment of the present invention;
FIG. 9 is a schematic diagram of the xApp of the Radio Function and the nRT RIC Framework deployed on a cloud platform according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a wireless function enhancement method according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a near real-time wireless intelligent controller architecture according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.
The techniques described herein are not limited to NR systems and Long Time Evolution (LTE)/LTE Evolution (LTE-a) systems, and may also be used for various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. CDMA systems may implement Radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA), and so on. UTRA includes Wideband CDMA (Wideband Code Division Multiple Access, WCDMA) and other CDMA variants. TDMA systems may implement radio technologies such as Global System for Mobile communications (GSM). The OFDMA system may implement radio technologies such as Ultra Mobile Broadband (UMB), evolved-UTRA (E-UTRA), IEEE 802.21(Wi-Fi), IEEE802.16(WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are parts of the Universal Mobile Telecommunications System (UMTS). LTE and higher LTE (e.g., LTE-A) are new UMTS releases that use E-UTRA. UTRA, E-UTRA, UMTS, LTE-A, and GSM are described in documents from an organization named "third Generation Partnership Project" (3 GPP). CDMA2000 and UMB are described in documents from an organization named "third generation partnership project 2" (3GPP 2). The techniques described herein may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes NR systems for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications.
The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
FIG. 2 shows an overall design schematic of the Near-RT RIC, wherein the xApp model is introduced in the Near-RT RIC, in order to achieve the capability openness and the capability of rapidly introducing third parties.
Specifically, one implementation based on fig. 2 is to encapsulate all Radio Resource Management (RRM) functions into different xApp, where the Near-RT RIC of fig. 2 is transparently transmitted by xApp (xApp 1-xApp N), where xApp directly interacts with the base station through an E2 interface, and the Near-RT RIC is only responsible for processing messages of an E2 interface.
xApp is a functional entity defined in IT, existing in the form of one micro service (Microservice) on a cloud platform. The nRT RIC architecture (Near-RT RIC Framework) is also used as a micro-service of the cloud platform, and peer-to-peer software functional entities are arranged between the nRT RIC architecture and the Near-RT RIC Framework on the cloud platform. Meanwhile, xApp cannot be used as a functional entity of Near-RT RIC Framework from the principle of protocol layer peer-to-peer. Thus, the following paradox exists: from the perspective of cloud platform technology, xApp and Near-RT RIC Framework are peer-to-peer micro-service software entities; from the perspective of the function of the Near-RT RIC, the function operated inside the xApp is the function operated in the Near-RT Framework, and strict upper and lower layer constraints exist between the two functions.
The Service-based Architecture (SBA) is a basic Architecture of a fifth-generation mobile communication system (5G), and combines the characteristics and technical development trend of a network of a mobile core network to divide network functions into services that can be flexibly called, and lightweight interfaces are used for communication among the services, so that the aim of realizing high efficiency, software and openness of the 5G system is achieved.
The SBA architecture is applied to a 5G core network, and the SBA is mainly characterized in that flexible interaction (service) among all functional modules can be realized through a standard service model, and each component can be flexibly loaded according to needs. In the 5G core network, a logic control function is abstracted into independent functional components, and the independent network functional components can be flexibly combined according to service requirements. The network function component is logically decoupled from other components and the network function supports neutral interfaces, which can provide services to other network function callers through the same interface messages, converting multiple coupled interfaces into a single interface, thereby reducing the number of interfaces. The network function gateway framework provides management functions of registration, discovery, monitoring and the like of the network function, and the independent characteristics ensure that the existing network service is not influenced in the process of newly adding or upgrading the network function. The modular control plane architecture enables plug and play through flexible orchestration of network functions.
Against the paradox mentioned in the background art, the embodiment of the present invention provides a centralized SBARIC architecture to solve the paradox, and implement unification of the parallelism and hierarchy constraint logic relationship by defining the constraint relationship between the upper layer and the lower layer in a layered manner.
In the embodiment of the invention, the RIC frame is taken as the center of a wireless function layer to realize the control of the wireless function layer; based on the SBA architecture, flexible control of xApp of wireless functions is realized.
Fig. 3 shows a schematic diagram of a centralized SBAnRT RIC-based architecture according to an embodiment of the present invention, where the architecture includes a Cloud platform (Cloud Framework), a near real-time wireless intelligent controller platform (nRT RIC Framework), and a wireless functional entity (xAPP); wherein,
the cloud platform is used for managing the nRT RIC platform and the xAPP software carriers, configuring a routing path among the software carriers, and/or configuring the routing path among the xAPPs and performing message transmission between the xAPP and the nRT RIC platform;
the nRT RIC platform runs on the cloud platform and is used for managing the xAPP and/or realizing part or all of wireless functions;
the xAPP runs on the nRT RIC platform and is used for realizing the enhancement function of the wireless function.
In the embodiment of the invention, the enhancement functions of various wireless functions are operated on different Microservice (Microservice) software bodies to form a software form of xApp. Herein, where not specifically illustrated, Radio Function (xApp) is used to refer to the wireless functionality of xApp. The enhanced Function of the wireless Function refers to a 5G or 4G system, and in addition to various wireless functions already defined in the prior art, various auxiliary functions aiming at enhancing the existing wireless functions are introduced in the form of Radio Function (xApp), such as: an algorithm enhancement of Radio Resource Management (RRM); and completing the judgment of the moving direction of the user by Radio Function (xApp), classifying the users in the cell according to the moving direction, generating a strategy for switching the users between the cells, and sending the strategy to a switching algorithm of RRM (Radio resource management) so as to realize the rapid convergence of the switching algorithm and improve the system performance. The nRT RIC architecture runs on one Microservice (Microservice) bearer. Where not specifically stated herein, nRT RIC Framework is used to refer to the RIC platform.
The nRT RIC platform according to the embodiment of the present invention can implement a plurality of functions shown in fig. 2, such as functions of a message Infrastructure (Messaging Infrastructure), Conflict resolution (collision management), Subscription management (Subscription Mgmt), management service (Mgmt. services (xApp, E2, etc.)), Shared Data Layer (Shared Data Layer), Database (Database), E2 Termination (E2 Termination), and in addition to the above functions, the nRT RIC platform further has:
a) the management functions of the Network Function (NF, that is, the xApp software entity in fig. 2 that carries various Radio enhancement functions) include registration, routing information and monitoring detection of each NF, activation, registration, management, and the like of each NF when the nRT RIC scale is extended, and routing configuration and control from each Radio Function (xApp) to the NF.
b) Various radio resource management functions, i.e., RRM algorithms, have been defined in 5G or 4G systems. In the nRT RIC Framework, all defined RRM functions are run. Interacting with a Radio Access Network (RAN) through an nRT RIC frame, sending a Control command of RRM algorithm parameters to an RRC functional entity in the RAN, and then generating an RRC signaling by the RRC functional entity to configure the UE, or generating a Control message by the RRC functional entity or configuring a functional entity inside the RAN by the signaling, such as a physical layer (PHY) of layer 1(L1), a Service Data Adaptation Protocol (SDAP) of layer 2(L2), a Packet Data Convergence Protocol (PDCP), a Radio Link Control (RLC), a Media Access Control (MAC), and other entities. Each functional entity (such as the protocol functional entities of L1 and L2, and the RRC of L3, etc.) in a Radio Access Network (RAN) reports various required measurement parameters, including UE-level and cell-level, to an nRT RIC frame.
The xApp (radio function) of the embodiment of the invention is used for realizing various wireless related function enhancements or algorithm enhancements. The basic radio functions or algorithms such as RRM are not included in the xApp. xApp (radio function) directly runs on the nrT RIC Framework, various required measurement parameters are obtained through the nrT RIC Framework, the generated information of control, strategy (Policy), requirement or indication of algorithm operation on wireless management and the like is sent to the nrT RIC Framework, and the nrT RIC Framework decides whether to send the information to a base station or not (comprising various operations such as abandoning, correcting and adding).
The Cloud platform (Cloud Framework) of the embodiment of the invention is used for completing the generation, registration, life cycle management and release of software carriers (any one of micro service (Microservice), Virtual Machine (VM), Container (Container), Docker and the like) of each xApp (radio function) and nrT RIC Framework; and completing the establishment, configuration and control of routing paths among all software carriers; completing the message transmission between each xApp (radio function) and nRT RIC frame, xApp (radio function).
The service and message interaction between the entities will be described with reference to the drawings.
1. Register message of SBA interface (SBAI _ Register)
As shown in fig. 4, in a process of registering xApp (radio function) to an nRT RIC Framework, when an xApp (radio function) is deployed, the xApp performs wireless function registration to the nRT RIC Framework, and specifically, a Request/Response mode may be adopted.
Here, the content of the Request (Request) message may specifically include: the identity identification information and function expression of xApp (radio function), measurement parameter description or requirement, output result description and other information. The content of the Response message may specifically include: response of registration success or failure.
If the registration is successful, the nRT RIC frame establishes information for the xapp (radio function), establishes an information exchange link, configures initial parameters for starting the xapp (radio function), and provides existing measurement parameters that can be used for the xapp (radio function).
2. Service application message of SBAI interface (SBAI _ Request)
As shown in fig. 5, the radio function entity xapp (radio function) applies for a radio function service to the near real-time radio intelligent control platform (nRT RIC Framework), and may specifically adopt a subscription or notification (Subscribe/Notify) manner.
Here, the subscription (Subscribe) message includes information such as a period or event triggering mode, a service type of the application, and the like. The method includes a periodic or event-triggered manner, such as periodic subscription and periodic reporting, and event-triggered subscription and event-triggered reporting. The content of the notification (Notify) message includes at least: service contents provided by the nRT RIC Framework, such as various measurement parameters of the subscription, and a feedback result of the control pair generated last time; or a method of obtaining a service, such as a storage address of the service content, a database access indication of the storage service, etc.
3. Service message of SBAI interface (SBAI _ Serving)
As shown in fig. 6, a radio function entity xapp (radio function) provides a radio function to a near real-time wireless intelligent control platform (nRT RIC Framework). When an xApp (radio function) is operated, an operation result is obtained, and service is provided for the nrT RIC Framework.
Here, a Request/Response scheme may be employed. Wherein, the content of the Request message includes: the service provided by the service includes a policy or control instruction for Radio Resource Management, a user service Management policy or control instruction, a Management policy or control instruction for connection between devices, various controls or instructions for Radio Resource Management (RRM), and the like. The contents of the Response message include: the response of availability or not of the service, if a conflict occurs, carries the reason (Cause) of the conflict.
In the interface model between the near real-time wireless intelligent control platform (nRT RIC Framework) and the wireless functional entity xapp (radio function), the logical connection relationship between xapp (radio function) and nRT RIC Framework in the embodiment of the present invention is as shown in fig. 7:
each xapp (radio function) is a radio function running on the nRT RIC Framework, and includes an AI model, an AI-driven radio management algorithm, training of the AI model, a digital twin simulation system of the base station (a simulation system including partial or full functions), an RRM algorithm, a protocol stack function (RLC/MAC/PDCP/SDAP/RRC, etc.) of Layer 1(Layer1, L1) or Layer 2(Layer2, L2) or Layer 3(Layer3, L3) on the base station, and an operation maintenance (O & M) function (Log customization and reporting, information tracking, system parameter configuration, alarm collection, etc.).
Each xApp (radio function) function applies for an operation permission to the nrT RIC Framework according to a uniform interface (API) defined by the nrT RIC Framework and a uniform function information template, and can be operated as a part of the nrT RIC function after the nrT RIC Framework permission is obtained.
xApp (radio function) obtains measurement data (Metrics) required by operation through an nRT RIC Framework, and generated control commands, strategies, indications or requirements are transmitted to a base station through the nRT RIC Framework, such as Conflict resolution (Conflict validation). When the base station measurement data stored in the nRT RIC frame is updated, the measurement information or data may be distributed to the corresponding xapp (radio function) according to the function requirement of each xapp (radio function).
The xApp (radio function) and the nRT RIC Framework interact through an Application Program Interface (API). The API Interface may be an Open Interface (Open Interface) or a private Interface (private Interface).
Fig. 8 is a schematic diagram of functional layers in interaction between xapp (radio function) and nRT RIC Framework, where each functional layer has a protocol for completing the interaction. xApp (radio function) and nRT RIC Framework are functional entities running on a Cloud platform (Cloud Framework), and exist in the forms of Virtual machines (Virtual machines), Micro services (Micro services), containers (containers) and the like. Each xApp (radio function) and nRT RIC Framework interact through an API.
FIG. 9 presents a schematic diagram of the xApp of the Radio Function and the nRT RIC Framework deployed on the Cloud platform (Cloud Framework). From the perspective of the Cloud platform, each xApp is a software function, and Service Management and Orchestration (SMO) performs various operations such as Management of Life Cycle of each software (Life Cycle Management), Orchestration (organization), and monitoring (Monitor) through the same Interface (O & M Interface for Cloud).
From the functional perspective of xapp (radio function) and nRT RIC Framework, nRT RIC Framework is the master, and xapp (radio function) is one of the functions running on nRT RIC Framework. The two interact with each other through a logical API (API Message, indicated by a dotted line in fig. 9), and the path of the API Message route is configured and transmitted through the Cloud frame. The SMO performs operations such as parameter configuration, monitoring, maintenance, tracking and alarming in the aspect of wireless Function through an operation maintenance Interface (O & M Interface for Radio Function). Because the nRT RIC frame is used as a master, the operation and maintenance of SMO can be connected only with the nRT RIC frame, and then the nRT RIC frame generates operation and maintenance control for each xapp (radio function) according to the indication of SMO. Or the SMO can uniformly control xApp (Radio Function) and nrT RIC Framework, and each has an independent operation maintenance Interface (O & M Interface for Radio Function).
As can be seen from the above description, based on the above near real-time wireless intelligent controller architecture, the xAPP in the embodiment of the present invention may also be configured to obtain a measurement parameter through the nRT RIC platform, execute the enhanced function based on the measurement parameter, generate at least one of control information, policy information, demand information of an algorithm for wireless management, and indication information, and send the generated information to the nRT RIC platform; the nRT RIC platform is further configured to receive measurement parameters reported by the functional entity in the radio access network and send the measurement parameters to the corresponding xAPP, and/or receive information sent by the xAPP, and determine whether to operate the received information or send the received information to the base station.
In the embodiment of the present invention, the nRT RIC platform may be further configured to implement a part or all of the radio resource management RRM function, and send a radio resource control RRC control command requirement generated by the RRM function to a functional entity in the radio access network through interaction with the radio access network.
In the embodiment of the present invention, the nRT RIC platform manages the xAPP, and specifically includes at least one of the following: responding to an expansion process, an activation process, a registration process and a management process of the xAPP, and configuring and maintaining routing information from the xAPP to the nrT RIC platform.
In this embodiment of the present invention, the xAPP may be further configured to send a registration request message to the nRT RIC platform in a request or response manner, where the registration request message carries at least one of identification information, function description information, measurement parameter description information, and output result description information of the xAPP. The nRT RIC platform is further configured to receive the registration request message, and when the registration is successful, perform at least one of the following operations: establishing an information exchange link with the xAPP, configuring initial parameters of the xPP start, and providing measurement parameters for the xPP.
Specifically, the xAPP may be further configured to apply for a service to the nRT RIC platform in a subscription or notification manner, where the subscription or notification includes periodic subscription or periodic reporting, and/or event-triggered subscription or event-triggered reporting; the nRT RIC platform is further configured to send a notification to the xAPP in response to the service application of the xAPP, where the notification includes: the nRT RIC platform provides service content and/or obtains service indication information.
Specifically, the xAPP is further configured to send a service request message to the nRT RIC platform in a request or response manner, where the service request message carries identification information of the xAPP and the provided service information, and the service information includes at least one of the following: strategy or control indication information of radio resource management, user service management strategy or control indication information, and management strategy or control indication information of connection between devices; and the nRT RIC platform is further configured to receive the service request message and return a service response message indicating whether service information is available to the xAPP.
Here, the xAPP interacts with the nRT RIC platform through a logical API interface.
Through the content, the invention provides a centralized SBA nrT RIC framework, namely an SBA framework of nrT RIC, and divides and defines the functions of two functional software bodies (xApp (radio function) and nrT RIC fromwork) under the framework, and in addition, provides a constraint relation between the xApp (radio function) and the nrT RIC fromwork: the nRT RIC frofiber provides all operational support for xapp (radio function); each xApp (radio function) directly interacts with an nRT RIC fromwork; no direct interaction exists between xApp (radio function), and all interactions pass through nRT RIC fromwork. In addition, a message model of an interactive interface between xApp (radio function) and nrT RIC fromath is also provided.
The framework of the embodiment of the invention realizes the combination of SBA decentralization and main (function) and auxiliary (function) control of an application layer, realizes a unified solution of nRT RIC basic functions and increment functions, and can realize the enhancement of AI drive and nRT RIC functions of a digital twin simulation environment.
An application example of the near real-time wireless intelligent controller architecture according to the embodiment of the present invention is provided below by taking admission control as an example.
For admission controlled xApp:
1) parameter (Mextrics) application: subscribing cell-level load information including the number of users, the total number of GBRs and the position information of each user to Near-RT RIC;
2) and (3) xApp calculation: predicting the position change trend of the user according to the position information of the user, wherein the position change trend comprises the moving direction of the user, the moving speed of the user and the like; calculating the load of the cell, including the increasing change trend of GBR and the total number change trend of UE;
3) generating control: (Request-Response) generating control information, such as a user list that the user is rejected or transplanted to a neighboring cell, and a requirement information table of the user that the cell can accommodate;
after receiving the control information, the Near-RT RIC frame performs Conflict resolution (Conflict Mitigation) and generates control on the base station as required.
Based on the above near real-time wireless intelligent controller architecture, an embodiment of the present invention further provides a wireless function enhancement method, as shown in fig. 10, the method includes:
102, managing the xPP through the nRT RIC platform running on the cloud platform, and/or realizing partial or all wireless functions;
and 103, realizing the enhancement function of the wireless function through the xAPP running on the nRT RIC platform.
Optionally, the method further includes:
obtaining measurement parameters via the nRT RIC platform by the xAPP, executing the enhanced function based on the measurement parameters, generating at least one of control information, policy information, demand information for wireless management by an algorithm, and indication information, and transmitting the generated information to the nRT RIC platform;
and receiving the measurement parameters reported by the functional entity in the wireless access network and sending the measurement parameters to the corresponding xAPP through the nRT RIC platform, and/or receiving information sent by the xAPP and judging whether to operate the received information or send the received information to the base station.
Optionally, the method further includes:
and realizing part or all of Radio Resource Management (RRM) functions through the nRT RIC platform, and sending the Radio Resource Control (RRC) control command requirements generated by the RRM functions to a functional entity in the radio access network through interaction with the radio access network.
Optionally, the nRT RIC platform manages the xAPP, and specifically includes at least one of the following: responding to an expansion process, an activation process, a registration process and a management process of the xAPP, and configuring and maintaining routing information from the xAPP to the nrT RIC platform.
Optionally, the method further includes:
sending a registration request message to the nRT RIC platform by the xAPP in a request or response manner, where the registration request message carries at least one of identification information, function description information, measurement parameter description information, and output result description information of the xAPP;
receiving, by the nRT RIC platform, the registration request message, and when the registration is successful, performing at least one of the following operations: establishing an information exchange link with the xAPP, configuring initial parameters of the xPP start, and providing measurement parameters for the xPP.
Optionally, the method further includes:
applying for service to the nRT RIC platform through the xAPP in a subscription or notification manner, wherein the subscription or notification includes periodic subscription/periodic reporting, and/or event-triggered subscription/event-triggered reporting;
sending a notification to the xAPP in response to the service application of the xPP through the nrT RIC platform, wherein the notification comprises: the nRT RIC platform provides service content and/or obtains service indication information.
Optionally, the method further includes:
sending a service request message to the nRT RIC platform by the xAPP in a request or response manner, where the service request message carries identification information of the xAPP and the provided service information, and the service information includes at least one of the following: strategy or control indication information of radio resource management, user service management strategy or control indication information, and management strategy or control indication information of connection between devices;
and receiving the service request message through the nRT RIC platform, and returning a service response message indicating whether service information is available to the xAPP.
Optionally, the xAPP and the nRT RIC platform interact through a logical API interface.
As shown in fig. 11, an embodiment of the present invention provides a near real-time wireless intelligent controller architecture (may also be referred to as a near real-time wireless intelligent controller system), including: a processor 1101, a transceiver 1102, a memory 1103, and a bus interface, wherein:
in the embodiment of the present invention, the near real-time wireless intelligent controller architecture further includes: a program stored on the memory 1103 and executable on the processor 1101, the program when executed by the processor 1101 performing the steps of:
running an nRT RIC platform on a cloud platform, running a wireless functional entity xAPP on the nRT RIC platform, performing life cycle management on software carriers of the nRT RIC platform and the xAPP through the cloud platform, configuring routing paths among the software carriers, and performing message transmission between the xAPPs and between the xAPP and the nRT RIC platform; managing the xAPP through the nRT RIC platform, and/or realizing partial or all wireless functions; and realizing the enhancement function of the wireless function through the xAPP.
Optionally, the processor further implements the following steps when executing the program:
obtaining measurement parameters via the nRT RIC platform by the xAPP, executing the enhanced function based on the measurement parameters, generating at least one of control information, policy information, demand information for wireless management by an algorithm, and indication information, and transmitting the generated information to the nRT RIC platform; and receiving the measurement parameters reported by the functional entity in the wireless access network and sending the measurement parameters to the corresponding xAPP through the nRT RIC platform, and/or receiving information sent by the xAPP and judging whether to operate the received information or send the received information to the base station.
Optionally, the processor further implements the following steps when executing the program:
and realizing part or all of the Radio Resource Management (RRM) functions through the nRT RIC platform, and sending the requirements of Radio Resource Control (RRC) control commands generated by the RRM functions to a functional entity in the radio access network through interaction with the radio access network.
Optionally, the processor further implements the following steps when executing the program:
responding to an expansion process, an activation process, a registration process and a management process of the xAPP, and configuring and maintaining routing information from the xAPP to the nrT RIC platform.
Optionally, the processor further implements the following steps when executing the program:
sending a registration request message to the nRT RIC platform by the xAPP in a request or response manner, where the registration request message carries at least one of identification information, function description information, measurement parameter description information, and output result description information of the xAPP;
receiving, by the nRT RIC platform, the registration request message, and when the registration is successful, performing at least one of the following operations: establishing an information exchange link with the xAPP, configuring initial parameters of the xPP start, and providing measurement parameters for the xPP.
Optionally, the processor further implements the following steps when executing the program:
applying for service to the nRT RIC platform through the xAPP in a subscription or notification manner, wherein the subscription or notification includes periodic subscription/periodic reporting, and/or event-triggered subscription/event-triggered reporting;
sending a notification to the xAPP in response to the service application of the xPP through the nrT RIC platform, wherein the notification comprises: the nRT RIC platform provides service content and/or obtains service indication information.
Optionally, the processor further implements the following steps when executing the program:
sending a service request message to the nRT RIC platform by the xAPP in a request or response manner, where the service request message carries identification information of the xAPP and the provided service information, and the service information includes at least one of the following: strategy or control indication information of radio resource management, user service management strategy or control indication information, and management strategy or control indication information of connection between devices;
and receiving the service request message through the nRT RIC platform, and returning a service response message indicating whether service information is available to the xAPP.
Optionally, the xAPP and the nRT RIC platform interact through a logical API interface.
It can be understood that, in the embodiment of the present invention, when the computer program is executed by the processor 1101, each process of the method embodiment shown in fig. 10 can be implemented, and the same technical effect can be achieved.
In fig. 11, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1101, and various circuits, represented by memory 1103, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1102 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 1101 is responsible for managing the bus architecture and general processing, and the memory 1103 may store data used by the processor 1101 in performing operations.
It should be noted that the terminal in this embodiment is a device corresponding to the method shown in fig. 10, and the implementation manners in the above embodiments are all applied to the embodiment of the device, and the same technical effects can be achieved. In the device, the transceiver 1102 and the memory 1103, and the transceiver 1102 and the processor 1101 may be communicatively connected through a bus interface, and the functions of the processor 1101 may also be implemented by the transceiver 1102, and the functions of the transceiver 1102 may also be implemented by the processor 1101. It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.
In some embodiments of the invention, there is also provided a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of:
the method comprises the steps that an nRT RIC platform runs on a cloud platform, a wireless functional entity xAPP runs on the nRT RIC platform, software carriers of the nRT RIC platform and the xAPP are managed through the cloud platform, routing paths among the software carriers are configured, and/or message transmission is performed between the xAPPs and the nRT RIC platform; managing the xAPP through the nRT RIC platform, and/or realizing partial or all wireless functions; and realizing the enhancement function of the wireless function through the xAPP.
When executed by the processor, the program can implement all the implementation manners in the wireless function enhancement method, and can achieve the same technical effect, and is not described herein again to avoid repetition.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (19)
1. A near real-time wireless intelligent controller architecture, comprising: the system comprises a cloud platform, a near real-time wireless intelligent controller (nRT RIC) platform and a wireless functional entity xAPP; wherein,
the cloud platform is used for managing the nRT RIC platform and the xAPP software carriers, configuring a routing path among the software carriers, and/or configuring the routing path among the xAPPs and performing message transmission between the xAPP and the nRT RIC platform;
the nRT RIC platform runs on the cloud platform and is used for managing the xAPP and/or realizing part or all of wireless functions;
the xAPP runs on the nRT RIC platform and is used for realizing the enhancement function of the wireless function.
2. The near real-time wireless intelligent controller architecture of claim 1,
the xAPP is further configured to obtain measurement parameters through the nrT RIC platform, execute the enhanced function based on the measurement parameters, generate at least one of control information, policy information, demand information for wireless management by an algorithm, and indication information, and send the generated information to the nrT RIC platform;
the nRT RIC platform is further configured to receive measurement parameters reported by the functional entity in the radio access network and send the measurement parameters to the corresponding xAPP, and/or receive information sent by the xAPP, and determine whether to operate the received information or send the received information to the base station.
3. The near real-time wireless intelligent controller architecture of claim 1,
the nRT RIC platform is further configured to implement a part or all of the radio resource management RRM function, and send a radio resource control RRC control command requirement generated by the RRM function to a functional entity in the radio access network through interaction with the radio access network.
4. The near real-time wireless intelligent controller architecture of claim 1,
the nRT RIC platform manages the xAPP, and specifically comprises at least one of the following components: responding to an expansion process, an activation process, a registration process and a management process of the xAPP, and configuring and maintaining routing information from the xAPP to the nrT RIC platform.
5. The near real-time wireless intelligent controller architecture of claim 4,
the xAPP is further configured to send a registration request message to the nrT RIC platform in a request or response manner, where the registration request message carries at least one of identification information, function description information, measurement parameter description information, and output result description information of the xAPP;
the nRT RIC platform is further configured to receive the registration request message, and when the registration is successful, perform at least one of the following operations: establishing an information exchange link with the xAPP, configuring initial parameters of the xPP start, and providing measurement parameters for the xPP.
6. The near real-time wireless intelligent controller architecture of claim 4,
the xPP is further configured to apply for a service to the nRT RIC platform in a subscription or notification manner, where the subscription or notification includes periodic subscription/periodic reporting, and/or event-triggered subscription/event-triggered reporting;
the nRT RIC platform is further configured to send a notification to the xAPP in response to the service application of the xAPP, where the notification includes: the nRT RIC platform provides service content and/or obtains service indication information.
7. The near real-time wireless intelligent controller architecture of claim 4,
the xAPP is further configured to send a service request message to the nRT RIC platform in a request or response manner, where the service request message carries identification information of the xAPP and the provided service information, and the service information includes at least one of the following: strategy or control indication information of radio resource management, user service management strategy or control indication information, and management strategy or control indication information of connection between devices;
and the nRT RIC platform is further configured to receive the service request message and return a service response message indicating whether service information is available to the xAPP.
8. The near real-time wireless intelligent controller architecture of claim 1,
and the xAPP and the nRT RIC platform interact through a logical API (application program interface).
9. A wireless function enhancement method of a near real-time wireless intelligent controller architecture is characterized in that the near real-time wireless intelligent controller architecture comprises the following steps: the system comprises a cloud platform, a near real-time wireless intelligent controller (nRT RIC) platform and a wireless functional entity xAPP; the method comprises the following steps:
managing the nRT RIC platform and the xAPP software carriers through the cloud platform, configuring a routing path among the software carriers, and/or configuring the routing path among the xAPs and performing message transmission between the xAPs and the nRT RIC platform;
managing the xAPP through the nRT RIC platform running on the cloud platform, and/or realizing partial or all wireless functions;
and the xAPP running on the nRT RIC platform realizes the enhancement function of the wireless function.
10. The wireless functionality enhancement method of claim 9, further comprising:
obtaining measurement parameters via the nRT RIC platform by the xAPP, executing the enhanced function based on the measurement parameters, generating at least one of control information, policy information, demand information for wireless management by an algorithm, and indication information, and transmitting the generated information to the nRT RIC platform;
and receiving the measurement parameters reported by the functional entity in the wireless access network and sending the measurement parameters to the corresponding xAPP through the nRT RIC platform, and/or receiving information sent by the xAPP and judging whether to operate the received information or send the received information to the base station.
11. The wireless functionality enhancement method of claim 9, further comprising:
and realizing part or all of the Radio Resource Management (RRM) functions through the nRT RIC platform, and sending the requirements of Radio Resource Control (RRC) control commands generated by the RRM functions to a functional entity in the radio access network through interaction with the radio access network.
12. The wireless functionality enhancement method of claim 9,
the nRT RIC platform manages the xAPP, and specifically comprises at least one of the following components: responding to the expansion process, the activation process, the registration process and the management process of the xPP, and configuring and maintaining the routing information from the xPP to the nRT RIC platform.
13. The wireless functionality enhancement method of claim 12, further comprising:
sending a registration request message to the nRT RIC platform by the xAPP in a request or response manner, where the registration request message carries at least one of identification information, function description information, measurement parameter description information, and output result description information of the xAPP;
receiving, by the nRT RIC platform, the registration request message, and when the registration is successful, performing at least one of the following operations: establishing an information exchange link with the xAPP, configuring initial parameters of the xPP start, and providing measurement parameters for the xPP.
14. The wireless functionality enhancement method of claim 12, further comprising:
applying for service to the nRT RIC platform through the xAPP in a subscription or notification manner, wherein the subscription or notification includes periodic subscription or periodic reporting, and/or event-triggered subscription or event-triggered reporting;
sending a notification to the xAPP in response to the service application of the xPP through the nrT RIC platform, wherein the notification comprises: the nRT RIC platform provides service content and/or obtains service indication information.
15. The wireless functionality enhancement method of claim 12, further comprising:
sending a service request message to the nRT RIC platform by the xAPP in a request or response manner, where the service request message carries identification information of the xAPP and the provided service information, and the service information includes at least one of the following: strategy or control indication information of radio resource management, user service management strategy or control indication information, and management strategy or control indication information of connection between devices;
and receiving the service request message through the nRT RIC platform, and returning a service response message indicating whether service information is available to the xAPP.
16. The wireless functionality enhancement method of claim 9,
and the xAPP and the nrT RIC platform interact through a logical API (application programming interface).
17. A near real-time wireless intelligent controller architecture is characterized by comprising a processor and a transceiver, wherein,
the processor is used for running an nRT RIC platform on a cloud platform, running a wireless functional entity xAPP on the nRT RIC platform, managing software carriers of the nRT RIC platform and the xAPP through the cloud platform, configuring a routing path among the software carriers, and/or configuring the routing path among the xAPPs and performing message transmission between the xAPP and the nRT RIC platform; managing the xAPP through the nRT RIC platform, and/or realizing partial or all wireless functions; and realizing the enhancement function of the wireless function through the xAPP.
18. A near real-time wireless intelligent controller architecture, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method according to any of claims 9 to 16.
19. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 9 to 16.
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