CN113206782A

CN113206782A - Communication method and device for wireless network intelligent control platform and home edge gateway

Info

Publication number: CN113206782A
Application number: CN202110331971.4A
Authority: CN
Inventors: 刘东杰; 黄永明; 尤建洁
Original assignee: Network Communication and Security Zijinshan Laboratory
Current assignee: Network Communication and Security Zijinshan Laboratory
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-08-03
Anticipated expiration: 2041-03-26
Also published as: CN113206782B

Abstract

The invention discloses a communication method and a device of a wireless network intelligent control platform and a home edge gateway, wherein the communication method comprises the following steps: the home edge gateway receives a data message sent by the wireless unit; the home edge gateway sends the data message to Near-RT RIC according to the routing strategy; wherein the Near-RT RIC communicates with the home edge gateway through a first interface; the Near-RT RIC responds according to the data message; the home edge gateway receives the data message from the RU deployed in the home network and forwards the data message to the corresponding DU according to the routing strategy from the Near-RT RIC, so that load balance of the DU or rapid switching when the DU fails is realized, wireless network resources can be more effectively utilized, and the comprehensive cost investment of an operator network of the wireless network is reduced.

Description

Communication method and device for wireless network intelligent control platform and home edge gateway

Technical Field

The invention relates to the technical field of communication, in particular to a communication method and a communication device for a wireless network intelligent control platform and a home edge gateway.

Background

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

In view of the characteristics of high cost and large network building scale of single-station equipment of the 5G network, the concept of the open RAN for intelligent management of the radio access network is a hot spot of research. The introduction of the wireless network intelligent control platform can realize comprehensive intelligent control and management of the access network by the open RAN, thereby renovating the traditional management mode, reducing the construction difficulty, more effectively utilizing wireless network resources and reducing the network comprehensive cost investment of operators of the wireless network.

By means of the RAN architecture of the 5G network, the flow data and behavior operation of the home edge gateway can be analyzed by using technologies such as artificial intelligence and the like, so that the aims of improving the resource configuration accuracy and improving the user experience are fulfilled. However, the interaction analysis between the wireless network intelligent control platform and the home edge gateway is still in a discussion stage at present, and corresponding technologies and specifications are lacked to support the effective interaction of the wireless network intelligent control platform and the home edge gateway.

Disclosure of Invention

In order to solve the above problems, the present invention provides a communication method and apparatus for a wireless network intelligent control platform and a home edge gateway, which can realize communication interaction between the wireless network intelligent control platform and the home edge gateway, thereby more effectively utilizing wireless network resources and reducing the network comprehensive cost investment of wireless network operators.

In order to achieve the above object, an aspect of the present invention provides a method for a wireless network intelligent control platform to communicate with a home edge gateway, including:

the home edge gateway receives a data message sent by the wireless unit;

the home edge gateway sends the data message to Near-RT RIC according to the routing strategy; wherein the Near-RT RIC communicates with the home edge gateway through a first interface;

and the Near-RT RIC responds according to the data message.

As an optional communication method, the routing strategy is formulated by the Near-RT RIC according to state information; wherein, the state information includes the load and the operation state of the DU.

As an optional communication method, the Near-RT RIC collects the state information of the DU through a second interface.

As an optional communication method, the Near-RT RIC collects the state information of the DU through a second interface, and further includes:

the Near-RT RIC subscribes state information to the DU;

when the DU detects that an event meeting the conditions occurs, the DU reports state information to the Near-RT RIC; wherein the conditions include that the DU is faulty and the load reaches a threshold.

As an optional communication method, when the DU detects an event meeting a condition, the DU reports status information to the Near-RT RIC, and then the method further includes:

and the Near-RT RIC adjusts the communication relation between the DU and the home edge gateway according to the state information.

On the other hand, the invention also provides a communication device of the wireless network intelligent control platform and the home edge gateway, which comprises the following components:

the home edge gateway is used for receiving the data message sent by the wireless unit and sending the data message to Near-RT RIC according to a routing strategy; wherein the Near-RT RIC communicates with the home edge gateway through a first interface;

and the Near-RT RIC is used for responding according to the data message.

As an optional communication device, the Near-RT RIC communicates with the DU through the second interface, and is configured to collect status information of the DU, where the status information includes a load and an operation status of the DU.

As an optional communication device, the routing policy is formulated by the Near-RT RIC according to the state information.

As an alternative communication means, the DU communicates with the CU through a third interface.

Compared with the prior art, the invention has the beneficial effects that: the home edge gateway receives the data message from the RU deployed in the home network and forwards the data message to the corresponding DU according to the routing strategy from the Near-RT RIC, so that load balance of the DU or rapid switching when the DU fails is realized, wireless network resources can be more effectively utilized, and the comprehensive cost investment of an operator network of the wireless network is reduced.

Drawings

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

Fig. 1 is an architecture diagram of an open intelligent RAN according to an embodiment of the present invention;

fig. 2 is an interface interaction diagram of an open intelligent RAN and a home edge gateway according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating interaction between Near-RT RIC and DU according to an embodiment of the present invention;

fig. 4 is an information subscription flowchart of Near-RT RIC and home edge gateway provided in the embodiment of the present invention.

Fig. 5 is a flowchart of policy issuing between Near-RT RIC and home edge gateway according to the embodiment of the present invention.

Detailed Description

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

Some english abbreviations appearing in the present examples respectively represent:

eMBB (Enhanced Mobile Broadband)

mMTC (Massive Machine Type Communication),

URLLC (Ultra-reliable and Low Latency Communications),

Service Management and organization Framework,

RAN (Radio Access Network),

CU (Central Unit),

CP (Control Plane),

UP (User Plane),

A UE (User Equipment),

CU-CP (control plane of centralized Unit),

CU-UP (user plane of centralized unit),

A DU (Distributed Unit),

RU (Radio Unit, Radio frequency Unit),

RIC (RAN Intelligent Controller),

RT (Real Time ),

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

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

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

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

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

The method flow in this embodiment may be implemented on an interactive architecture of an open intelligent RAN and a home edge gateway as shown in fig. 2. As shown in fig. 1, based on a CU/DU architecture and function virtualization of a 5G access network, a two-stage non-real-time and real-time wireless network Intelligent Controller (RAN Intelligent Controller, RIC) is introduced into an architecture of an open Intelligent RAN. The RIC mainly utilizes big data analysis and an artificial intelligence engine to sense and predict the wireless network environment and make decisions on allocation of wireless resources. According to the processing time delay characteristic, the RIC is divided into a Non-real-time wireless network intelligent controller Non-RT RIC and a Near-real-time wireless network intelligent controller Near-RT RIC. Specifically, the Near-RT RIC can realize Near-real-time control and optimization of functions and resources of the E2 node through fine-grained data collection and operation on an E2 interface. Near-RT RIC supports online real-time execution of artificial intelligence model reasoning and application. The Non-RT RIC is an internal function of an SMO (Service Management and organization) in an open intelligent RAN architecture, and provides an A1 interface for the Near-RT RIC. Non-RT RIC supports intelligent RAN optimization by providing policy-based guidance, machine learning model management, and enhanced information for Near-RT RIC. Non-RT RIC supports the introduction of customized strategies and the generation of artificial intelligence models and applications. The main functional unit of the open intelligent RAN also includes a central unit CU and a distributed unit DU, with an interface F1 between them.

To provide a better service experience for the home network, an interaction interface H1 is defined between Near-RT RIC and the home edge gateway. Through an H1 interface, Near-RT RIC can issue a strategy, and the home edge gateway can report the state.

In the embodiment of the present invention, an interactive flow of Near-RT RIC and DU as shown in fig. 3 is provided, which substantially includes:

step 1: the Near-RT RIC and the DU carry out information interaction through an E2 interface, the Near-RT RIC subscribes state information to the DU, such as the current load condition, the running condition and the like, and the DU replies a response to the subscription message from the Near-RT.

Step 2: the DU detects the occurrence of an event that satisfies a condition, such as the occurrence of a fault, the load reaching a threshold, etc.

And step 3: and the DU reports state information, such as current load, running state and the like, to the Near-RT RIC.

The Near-RT RIC may formulate routing policies according to the state information, and then issue the routing policies to the home edge gateway, and when the home edge gateway connects a plurality of DUs, adjust the connection state between the home edge gateway and the DUs according to the routing policies, for example, when a DU fails, immediately switch the data path, or when the load of a DU reaches a threshold, adjust the signal transmission between the DU and the home edge gateway, thereby achieving load balancing.

In an embodiment of the present invention, an information subscription flow between Near-RT RIC and a home edge gateway is further provided as shown in fig. 4, where the flow substantially includes:

step 1: the Near-RT RIC and the home edge gateway perform information interaction through an H1 interface, the Near-RT RIC subscribes information to the home edge gateway, such as equipment running conditions, policy rule execution conditions and the like, and the home edge gateway replies a response to the subscription message from the Near-RT.

Step 2: the home edge gateway detects the occurrence of events meeting conditions, such as equipment failure, abnormal execution of policy rules from Near-RT RIC, and the like.

And step 3: and the home edge gateway reports corresponding subscription information to the Near-RT RIC.

In the embodiment of the present invention, a routing policy control flow of Near-RT RIC and home edge gateway as shown in fig. 5 is further provided, where the flow substantially includes:

step 1: the Near-RT RIC and the home edge gateway perform information interaction through an H1 interface, and the Near-RT RIC routes the strategy control information to the home edge gateway.

Step 2: and the home edge gateway adjusts the routing according to the routing strategy indicated by the Near-RT RIC.

And step 3: and the home edge gateway reports a corresponding routing adjustment result to the Near-RT RIC.

Through the communication scheme of the open intelligent RAN and the home edge gateway, effective interaction between the two is achieved, the home network and the access network are deeply combined, service is provided at the edge of the home network closer to a user, home network capacity customization is achieved, and user experience is improved.

In addition, an embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium may store a program, and when the program is executed, the program includes some or all of the steps of the fingerprint fusion identification method of any wireless communication device described in the above method embodiments.

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 integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable memory. 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 memory and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

An exemplary flow chart of a method for implementing a service chain according to an embodiment of the present invention is described above with reference to the accompanying drawings. It should be noted that the numerous details included in the above description are merely exemplary of the invention and are not limiting of the invention. In other embodiments of the invention, the method may have more, fewer, or different steps, and the order, inclusion, function, etc. of the steps may be different from that described and illustrated.

Claims

1. A communication method between a wireless network intelligent control platform and a home edge gateway is characterized by comprising the following steps:

the home edge gateway receives a data message sent by the RU;

and the Near-RT RIC responds according to the data message.

2. The communication method according to claim 1, wherein: the routing strategy is formulated by the Near-RT RIC according to state information; wherein, the state information includes the load and the operation state of the DU.

3. The communication method according to claim 2, wherein: the Near-RT RIC collects the state information of the DUs over a second interface.

4. The communication method of claim 3, wherein the Near-RT RIC collects the state information of the DU through a second interface, further comprising:

the Near-RT RIC subscribes state information to the DU;

when the DU detects that an event meeting the conditions occurs, the DU reports state information to the Near-RT RIC; wherein

The conditions include that the DU is faulty and the load reaches a threshold.

5. The communication method according to claim 4, wherein when the DU detects an event meeting a condition, the DU reports status information to the Near-RT RIC, and thereafter further comprising:

6. The utility model provides a communication device of wireless network intelligent control platform and home edge gateway which characterized in that: the method comprises the following steps:

and the Near-RT RIC is used for responding according to the data message.

7. The communication device of claim 6, wherein: and the Near-RT RIC is communicated with the DU through a second interface and is used for collecting the state information of the DU, and the state information comprises the load and the running state of the DU.

8. The communication device of claim 7, wherein: and the routing strategy is formulated by the Near-RT RIC according to the state information.

9. The communication device of claim 6, wherein: and the DU communicates with the CU through a third interface.

10. A computer-readable storage medium, which stores a computer program, wherein the computer program, when executed by a processor, implements the steps of a method for a wireless network intelligent control platform to communicate with a home edge gateway as claimed in any one of claims 1 to 5.