An implementation method of a distributed base station interface protocol

Abstract

The present invention relates to the technical field of distributed base station interface protocols, and particularly relates to a method for implementing a distributed base station interface protocol. The method includes: configuring a plurality of interface modules for connecting functional modules within the protocol layer M-Plane, and invoking the corresponding interface modules through a distributed task scheduler Schedule Server to implement the invocation of corresponding operation tasks; implementing the protocol docking between a baseband processing unit BBU and a remote radio unit RRU by configuring a protocol manager Netconf Manager; adding a protocol adaptation layer to unify different protocols through a YANG model, and invoking an RRU control interface through a middleware scheduling module; adding a protocol adaptation management module for configuring the protocol adaptation layer to implement the adaptation of requests for third-party protocols, CPRI protocols, and eCPRI protocols. The present invention can achieve flexible expansion of the RRU for third-party management protocols, particularly for the personalized requirements of some special environments or dedicated network customers for management protocols, and make up for the deficiencies of Netconf in terms of security and specific application scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of distributed base station interface protocols, and particularly relates to a method for implementing a distributed base station interface protocol. Background Art

[0002] A distributed base station (DBS) is a key component in a wireless network architecture. Especially for 5G distributed base stations, it is the development direction of the wireless network architecture. Its main purpose is to improve the flexibility and performance of the network by separating the baseband processing unit (BBU) and the remote radio unit (RRU) of the base station. The fronthaul protocol between the baseband processing unit (BBU) and the remote radio unit (RRU) is crucial, which determines the efficiency, latency, and reliability of data transmission. The main role of the 4G fronthaul protocol is to provide a standardized high-bandwidth interface for the communication between the 4G BBU and RRU, especially suitable for the separation of the baseband and radio frequency modules in the distributed base station architecture. 5G fronthaul is an enhanced version of 4G fronthaul, specifically designed for 5G network requirements, providing higher bandwidth efficiency and a more flexible network architecture. Among them, the M-plane protocol is an important concept in the wireless communication network, especially in the fronthaul application layer protocol architecture of 5G. The M-plane protocol mainly refers to the Management Plane (M-Plane), which is responsible for the management and control of network devices, covering the configuration, control, and performance management of base station devices such as BBU and RRU.

[0003] The current 5G fronthaul application layer protocol architecture is implemented through Netconf and the M-Plane protocol that supports the YANG model, and most of them are applied to 5G distributed base stations. When it is necessary to upgrade a traditional distributed base station to a 5G distributed base station, all 4G fronthaul protocols need to be updated to 5G fronthaul protocols, so the cost is relatively high; the flexibility of the traditional 4G fronthaul protocol architecture is relatively poor, and its support for protocol compatibility, especially for protocol evolution, is particularly insufficient. Compared with the M-Plane protocol architecture, the traditional 4G fronthaul protocol has a higher coupling degree, and a lower modularity and security, and can no longer meet the requirements of flexibility and stability. When deploying projects, sometimes it is necessary to be compatible with both Netconf and third-party management protocols at the same time, and Netconf itself has a dependence on the 5G fronthaul interface. When the 5G fronthaul interface is interrupted, Netconf will also interrupt the communication with the BBU and the management server, which is not conducive to device fault management. Summary of the Invention

[0004] The present invention is based on a software architecture of Netconf and M-Plane, realizing a modular design of functional interfaces. The internal calls use a unified M-Plane interface, and the data structures of the YANG model are used to define all data and operations.

[0005] The technical solution proposed by the present invention is: a method for implementing a distributed base station interface protocol, the method comprising:

[0006] Configure multiple interface modules for connecting functional modules within the protocol layer M-Plane, and call the corresponding interface modules through the distributed task scheduler Schedule Server to implement the call of corresponding operation tasks;

[0007] Implement the protocol docking between the baseband processing unit BBU and the remote radio unit RRU by configuring the protocol manager Netconf Manager;

[0008] Add a protocol adaptation layer to unify different protocols through the YANG model, and call the RRU control interface through the middleware scheduling module;

[0009] Add a protocol adaptation management module for configuring the protocol adaptation layer to implement the adaptation of third-party protocols, CPRI protocols, and eCPRI protocol requests.

[0010] Preferably, the step of configuring multiple interface modules for connecting functional modules within the protocol layer M-Plane, and calling the corresponding interface modules through the distributed task scheduler Schedule Server to implement the call of corresponding operation tasks includes the following steps:

[0011] Configure one or more of a software upgrade management interface module, a hardware management interface module, a connection management interface module, and a management device interface module within the protocol layer;

[0012] Call the corresponding interface module through the Schedule Server set within M-Plane to implement the operation tasks of the corresponding functional module, and the operation tasks include module startup, log management, and event activation.

[0013] Preferably, the step of adding a protocol adaptation layer to unify different protocols through the YANG model, and calling the RRU control interface through the middleware scheduling module includes the following steps:

[0014] Within the standard open radio access network architecture ORAN, add a protocol adaptation layer and a middleware scheduling module;

[0015] The protocol sent by the third-party protocol interface is parsed and converted through the protocol adaptation layer. Specifically, data conversion is performed through the YANG model of the data modeling language to generate corresponding network configuration data one;

[0016] The middleware is scheduled through the middleware scheduling module, and the radio frequency control interface is called through the middleware to implement operations on the RRU. Specifically:

[0017] The middleware is set in the M-Plane. The middleware is used to read the network configuration data one, perform radio frequency control according to the network configuration data one, and thus implement the control of the RRU.

[0018] Preferably, the addition of the protocol adaptation layer unifies different protocols through the YANG model, and the RRU control interface is called through the middleware scheduling module. It further includes:

[0019] The CPRI protocol is identified through the protocol adaptation layer, and data conversion is performed through the YANG model to generate corresponding network configuration data two;

[0020] The middleware is scheduled through the middleware scheduling module, the middleware reads the network configuration data two, and radio frequency control is performed according to the network data two to implement the control of the RRU.

[0021] Preferably, the addition of the protocol adaptation management module is used to configure the protocol adaptation layer to implement the adaptation of requests for third-party protocols, CPRI protocols, and eCPRI protocols, including the following steps:

[0022] A protocol request condition table is established, specifically including:

[0023] Create a database table or configuration file to define the mapping relationship between different protocol requests and YANG model commands; record the conditions of each protocol request and the corresponding YANG model commands. The YANG model commands include protocol type, command ID, and data format fields;

[0024] According to the protocol request condition table, multiple command requests and data of the third-party protocol or CPRI protocol are mapped to one command request and data request of the YANG model;

[0025] According to the protocol request table, one command request of the third-party protocol or CPRI protocol is mapped to multiple command requests and data requests of the YANG model;

[0026] According to the protocol request table, one request command of the third-party protocol or CPRI protocol is mapped to one command request and data request of the YANG model.

[0027] Preferably, the addition protocol adaptation management module is used to configure the protocol adaptation layer to implement the adaptation of third-party protocols, CPRI protocols, and eCPRI protocol requests, and further includes the following steps:

[0028] Set up a request condition check process;

[0029] When the request operations of the third-party protocol or the CPRI protocol meet multiple trigger conditions in the request condition table, the temporarily stored one-time conditions are cleared;

[0030] When the request operations of the third-party protocol or the CPRI protocol do not meet multiple trigger conditions in the request condition table, the existing trigger conditions are temporarily stored, and the existing trigger conditions include: one-time conditions, timeliness conditions, and permanent conditions.

[0031] Preferably, it further includes the following steps:

[0032] Set up a third-party protocol conversion module;

[0033] The third-party protocol conversion module performs protocol parsing and conversion on the protocol sent through the third-party protocol interface or the UDP channel, and converts it into an operation command for controlling the RRU by calling the middleware through the M-Plane interface; specifically including:

[0034] The third-party protocol conversion module parses the received third-party protocol data packet and extracts the valid information, and the valid information includes data format and command structure;

[0035] Convert the valid information obtained by parsing into the standard command format required by the M-Plane interface;

[0036] Through the M-Plane interface, the converted command is passed to the middleware;

[0037] The middleware performs corresponding operations according to the received command, including configuring RRU parameters and querying status;

[0038] After the RRU executes the operation, the result is fed back to the middleware, and the middleware then feeds back the result to the third-party system through the M-Plane interface.

[0039] Preferably, mapping multiple command requests and data of the third-party protocol or the CPRI protocol to one command request and data request of the YANG model according to the protocol request condition table includes the following steps:

[0040] Parse the received multiple protocol requests and extract the key information;

[0041] According to the protocol request condition table, merge or convert these requests to form one request that conforms to the YANG model;

[0042] Send this merged request through the interface of the YANG model.

[0043] The present invention also provides a computer-readable storage medium storing a computer program, and the computer program is executed by a processor to implement the method for implementing a distributed base station interface protocol as described above.

[0044] Advantages of the present invention:

[0045] 1. The present invention makes internal calls through a unified M-Plane interface to ensure the consistency and scalability of the architecture, and uses the data structure of the YANG model to define all data and operations, realizing an efficient and standardized management and operation process. This not only enhances the flexibility of the system but also provides a solid foundation for the future expansion of functions and the compatibility of protocols.

[0046] 2. Based on the Netconf architecture, the present invention integrates a third-party protocol conversion module, which is responsible for parsing and converting third-party protocol interfaces (such as protocols transmitted through UDP channels). Through protocol conversion, these external protocols are converted into internal operation commands that can be called through the M-Plane interface, and the RRU device is controlled through middleware. This ensures that the system can be compatible with multiple protocols, enhances flexibility, and at the same time maintains unified management and control of the RRU. Through the standardized processing of the YANG model, protocol compatibility and operation consistency are ensured.

[0047] 3. The present invention ensures that when all trigger conditions of the requested operation are met through the request condition check process, the corresponding operation request can be immediately executed, and the temporarily stored one-time conditions are automatically cleared. For conditions that are not fully met, the system will temporarily store the existing one-time conditions, time-limited conditions, and permanent conditions. Among them, the time-limited conditions will be immediately cleared after timeout to ensure the efficient and expected operation logic of the system. In addition, the system can intelligently manage complex trigger conditions, thus significantly improving the automation level and reliability of condition processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a flowchart of the method for implementing a distributed base station interface protocol of the present invention.

[0049] Figure 2 It is a schematic diagram of the M-plane protocol module of the present invention.

[0050] Figure 3 It is a modular schematic diagram of a distributed base station interface protocol of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0051] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and other obvious variations can be conceived by those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other implementation schemes, variant schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present invention.

[0052] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of the element can be multiple. The term "a" cannot be understood as a limitation on the number.

[0053] Reference Figures 1-3 , the technical solution provided by the present invention is: a method for implementing a distributed base station interface protocol, including the following steps:

[0054] I. Configure multiple interface modules for connecting functional modules within the protocol layer M-Plane, and call the corresponding interface modules through the distributed task scheduler Schedule Server to implement the call of corresponding operation tasks, including:

[0055] Configure one or more of a software upgrade management interface module, a hardware management interface module, a connection management interface module, and a management device interface module within the protocol layer;

[0056] Call the corresponding interface module through the Schedule Server set within the M-Plane to implement the operation tasks of the corresponding functional module, and the operation tasks include module startup, log management, and event scheduling.

[0057] II. Implement the protocol docking between the baseband processing unit BBU and the remote radio unit RRU by configuring the protocol manager Netconf Manager;

[0058] III. Add a protocol adaptation layer; use the YANG model to define the data structure of the third-party protocol interface. This includes defining data types, data formats, data ranges, etc.; then, parse the raw data sent by the third-party protocol and convert it into the format defined by the YANG model. Specifically, it includes operations such as encoding / decoding, data mapping, and unit conversion.

[0059] Integrate middleware in the M-Plane so that it can read the network configuration data one generated by the protocol adaptation layer, write control logic so that the middleware can execute corresponding radio frequency control commands according to the network configuration data one; establish the interaction between the middleware and the radio frequency control interface so that the middleware can send instructions to the RRU and receive its feedback.

[0060] Map the control parameters in Network Configuration Data 1 to specific RF control instructions, and call the RF control interface through the middleware to send control instructions to the RRU, such as adjusting the power level, frequency selection, etc.;

[0061] Monitor the status information of the RRU to ensure its correct response to control instructions and make adjustments if necessary.

[0062] Add a protocol adaptation management module for configuring the protocol adaptation layer to achieve adaptation to third-party protocols, CPRI protocols, and eCPRI protocol requests. It includes the following steps:

[0063] 1. Establish a protocol request condition table, specifically including:

[0064] Create a database table or configuration file to define the mapping relationship between different protocol requests and YANG model commands; record the conditions of each protocol request and the corresponding YANG model commands, and the YANG model commands include protocol type, command ID, and data format fields;

[0065] 2. According to the protocol request condition table, map multiple command requests and data of the third-party protocol or CPRI protocol to one command request and data request of the YANG model; specifically including: parsing the received multiple protocol requests to extract key information; according to the protocol request condition table, merge or convert these requests to form a request that conforms to the YANG model; send this merged request through the interface of the YANG model.

[0066] 3. According to the protocol request table, map one command request of the third-party protocol or CPRI protocol to multiple command requests and data requests of the YANG model;

[0067] 4. According to the protocol request table, map one request command of the third-party protocol or CPRI protocol to one command request and data request of the YANG model.

[0068] In addition, in order to accurately adapt to various protocols, it also includes the following steps:

[0069] Set up a request condition check process; when the request operations of the third-party protocol or CPRI protocol meet multiple trigger conditions in the request condition table, clear the temporarily stored one-time conditions; when the request operations of the third-party protocol or CPRI protocol do not meet multiple trigger conditions in the request condition table, temporarily store the existing trigger conditions, and the existing trigger conditions include: one-time conditions, timeliness conditions, and permanent conditions.

[0070] In some preferred embodiments, the conversion process for the third-party protocol includes the following steps:

[0071] Set up a third-party protocol conversion module; the third-party protocol conversion module performs protocol parsing and conversion on the protocols sent by the third-party protocol interface or UDP channel, and converts them into operation commands for controlling the RRU by calling the middleware through the M-Plane interface; specifically including:

[0072] The third-party protocol conversion module parses the received third-party protocol data packets, extracts the valid information, and the valid information includes data format and command structure; converts the valid information obtained by parsing into the standard command format required by the M-Plane interface; through the M-Plane interface, transfers the converted command to the middleware; the middleware performs corresponding operations according to the received command, including configuring RRU parameters and querying status; after the RRU executes the operation, feeds back the result to the middleware, and the middleware then feeds back the result to the third-party system through the M-Plane interface.

[0073] The present invention also provides a computer-readable storage medium, and the computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the implementation method of a distributed base station interface protocol described above.

[0074] Embodiments disclosed in the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. Embodiments disclosed in the present invention include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program codes for performing the methods shown in the flowcharts. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part, and / or installed from a removable medium. When the computer program is executed by a central processing unit (CPU), the above functions defined in the methods of the present application are performed. It should be noted that the computer-readable medium in the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the two. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium can include, but are not limited to: an electrical connection with one or more wire segments, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, the computer-readable storage medium can be any tangible medium that contains or stores a program, and the program can be used by or in combination with an instruction execution system, apparatus, or device. In the present application, the computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, which carries the computer-readable program code. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than the computer-readable storage medium, and the computer-readable medium can send, propagate, or transmit a program for use by or in combination with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted by any suitable medium, including but not limited to: wireless, wire segments, optical cables, RF, etc., or any suitable combination of the above.

[0075] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagram may represent a module, a segment of a program, or a portion of code that contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions noted in the blocks may occur in a different order than that noted in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0076] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Without departing from the above principles, the embodiments of the present invention may be subject to any variation or modification.

Claims

1. A method for implementing a distributed base station interface protocol, characterized in that The method includes: Configure multiple interface modules for connecting functional modules within the protocol layer M-Plane, and call the corresponding interface modules through the distributed task scheduler Schedule Server to implement the call of corresponding operation tasks; Implement the protocol docking between the baseband processing unit BBU and the remote radio unit RRU by configuring the protocol manager Netconf Manager; Add a protocol adaptation layer to unify different protocols through the YANG model, and call the RRU control interface through the middleware scheduling module; Add a protocol adaptation management module for configuring the protocol adaptation layer to implement the adaptation of third-party protocol, CPRI protocol, and eCPRI protocol requests; The addition of the protocol adaptation layer includes the following steps: Within the standard open radio access network architecture ORAN, add a protocol adaptation layer and a middleware scheduling module; parse and convert the protocol sent by the third-party protocol interface through the protocol adaptation layer; schedule the middleware through the middleware scheduling module, and call the radio frequency control interface through the middleware to implement the operation of the RRU.

2. The implementation method of a distributed base station interface protocol according to claim 1, characterized in that The configuration of multiple interface modules for connecting functional modules within the protocol layer M-Plane and the call of the corresponding interface modules through the distributed task scheduler ScheduleServer to implement the call of corresponding operation tasks includes the following steps: Configure one or more of the software upgrade management interface module, hardware management interface module, connection management interface module, and management device interface module within the protocol layer; Call the corresponding interface module through the Schedule Server set within M-Plane to implement the operation tasks of the corresponding functional module, and the operation tasks include module startup, log management, and event scheduling.

3. The implementation method of a distributed base station interface protocol according to claim 2, characterized in that The addition of the protocol adaptation layer to unify different protocols through the YANG model and call the RRU control interface through the middleware scheduling module includes the following steps: Within the standard open radio access network architecture ORAN, add a protocol adaptation layer and a middleware scheduling module; Parse and convert the protocol sent by the third-party protocol interface through the protocol adaptation layer, specifically perform data conversion through the data modeling language YANG model to generate the corresponding network configuration data one; Schedule the middleware through the middleware scheduling module, and call the radio frequency control interface through the middleware to implement the operation of the RRU. Specifically: The middleware is set within M-Plane, and the middleware is used to read the network configuration data one, perform radio frequency control according to the network configuration data one, and thus implement the control of the RRU.

4. The implementation method of a distributed base station interface protocol according to claim 3, characterized in that The addition of the protocol adaptation layer to unify different protocols through the YANG model and call the RRU control interface through the middleware scheduling module further includes: Identify the CPRI protocol through the protocol adaptation layer, perform data conversion through the YANG model to generate the corresponding network configuration data two; Schedule the middleware through the middleware scheduling module, read the network configuration data two through the middleware, and perform radio frequency control according to the network data two to implement the control of the RRU.

5. The implementation method of a distributed base station interface protocol according to claim 4, characterized in that, The added protocol adaptation management module is used to configure the protocol adaptation layer to achieve the adaptation of third-party protocol, CPRI protocol, and eCPRI protocol requests, including the following steps: Establish a protocol request condition table, specifically including: Create a database table or configuration file to define the mapping relationship between different protocol requests and YANG model commands; record the conditions of each protocol request and the corresponding YANG model commands, where the YANG model commands include protocol type, command ID, and data format fields; According to the protocol request condition table, map multiple command requests and data of the third-party protocol or CPRI protocol to one command request and data request of the YANG model; According to the protocol request table, map one command request of the third-party protocol or CPRI protocol to multiple command requests and data requests of the YANG model; According to the protocol request table, map one request command of the third-party protocol or CPRI protocol to one command request and data request of the YANG model.

6. The implementation method of a distributed base station interface protocol according to claim 5, characterized in that The added protocol adaptation management module is used to configure the protocol adaptation layer to achieve the adaptation of third-party protocol, CPRI protocol, and eCPRI protocol requests, and further includes the following steps: Set up a request condition check process; When the request operations of the third-party protocol or CPRI protocol meet multiple trigger conditions in the request condition table, clear the temporarily stored one-time conditions; When the request operations of the third-party protocol or CPRI protocol do not meet multiple trigger conditions in the request condition table, temporarily store the existing trigger conditions, where the existing trigger conditions include: one-time conditions, timeliness conditions, and permanent conditions.

7. The implementation method of a distributed base station interface protocol according to claim 1, characterized in that, It further includes the following steps: Set up a third-party protocol conversion module; Through the third-party protocol conversion module, perform protocol parsing and conversion on the protocol sent through the third-party protocol interface or UDP channel, and convert it into an operation command for controlling the RRU by calling the middleware through the M-Plane interface; Specifically including: The third-party protocol conversion module parses the received data packet of the third-party protocol and extracts the valid information, where the valid information includes data format and command structure; Convert the obtained valid information into the standard command format required by the M-Plane interface; Through the M-Plane interface, transfer the converted command to the middleware; The middleware performs corresponding operations according to the received command, including configuring RRU parameters and querying status; After the RRU performs the operation, feedback the result to the middleware, and the middleware then feedbacks the result to the third-party system through the M-Plane interface.

8. The implementation method of a distributed base station interface protocol according to claim 5, characterized in that The step of mapping multiple command requests and data of the third-party protocol or CPRI protocol to one command request and data request of the YANG model according to the protocol request condition table includes the following steps: Parse the received multiple protocol requests and extract the key information; According to the protocol request condition table, merge or convert these requests to form one request that conforms to the YANG model; Send this merged request through the interface of the YANG model.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the method for implementing a distributed base station interface protocol according to any one of claims 1-8 above.

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