CN113825259A - Electric power little basic station information receiving arrangement based on 5G technique - Google Patents
Electric power little basic station information receiving arrangement based on 5G technique Download PDFInfo
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Abstract
The invention discloses a power small cell information receiving device based on a 5G technology. The device comprises a baseband processing unit and a radio frequency remote unit; the hardware design of the baseband processing unit specifically comprises a transmission module, a baseband module, a control module and a power supply module; the software design of the baseband processing unit specifically comprises a central unit and a distribution unit, the central unit and the distribution unit are separately communicated through an F1 interface by adopting a structure conforming to a 5G RAN system and setting a service data adaptation protocol layer; the radio frequency far-end unit hardware design specifically comprises an amplifier part and a transceiver part, and the antenna part is connected with the baseband processing unit; the radio frequency remote unit software design specifically includes a radio frequency function and a part of ethernet communication function for convergence and statistical multiplexing. The invention can realize complete wireless access, provide communication, calculation and storage functions, deeply integrate AI application capability, directly access to a power grid application platform and support customized development aiming at power service requirements.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a power small base station information receiving device based on a 5G technology.
Background
The fifth Generation Mobile Communication Technology (5th Generation Mobile Communication Technology, abbreviated as 5G) is a new Generation broadband Mobile Communication Technology with the characteristics of high speed, low time delay and large connection, and is a network infrastructure for realizing man-machine interconnection.
The small base station refers to a small integrated base station, and is a general name of a base station type different from a macro base station at present. The small base stations can be divided into three different types according to the positions of the small base stations when the small base stations are applied: home base stations for home applications, enterprise/indoor base stations for small or retail enterprises, outdoor base stations for public applications, small base stations that can improve user network experience in homes, offices and public places, reduce customer churn and help operators gain market share.
The existing power network has the problems of flexible network and service adjustment, difficult optical fiber deployment and the like, so the problem of real-time power communication is considered, and the existing small base station provides the small power base station which is suitable for the power system based on the 5G technology.
Disclosure of Invention
The invention provides a power small base station information receiving device based on a 5G technology, which comprises: the system comprises a baseband processing unit and a radio frequency remote unit;
the hardware design of the baseband processing unit specifically comprises a transmission module, a baseband module, a control module and a power module, wherein the transmission module is responsible for completing communication and protocol adaptation, and the baseband module is responsible for completing upper-layer protocol processing, signal coding and decoding and modulation and demodulation and communication with a radio frequency module; the control module is responsible for clock management, signaling processing and operation processing, and the power supply module is responsible for power supply;
the software design of the baseband processing unit specifically comprises a central unit and a distribution unit, the central unit and the distribution unit are separately communicated through an F1 interface by adopting a structure conforming to a 5G RAN system and setting a service data adaptation protocol layer;
the radio frequency far-end unit hardware design specifically comprises an amplifier part and a transceiver part, is responsible for the control and processing of a radio frequency part circuit, and connects an antenna part with a baseband processing unit;
the radio frequency remote unit software design specifically includes a radio frequency function and a part of ethernet communication function for convergence and statistical multiplexing.
Preferably, the baseband processing unit adds a controller layer to provide an interface for introducing RAN control functions into certain applications.
Preferably, the controller layer on the central unit consists of cross slices, inter-slice controllers and corresponding applications running on the northbound interface; the control command and the interaction with the 5G base station are carried out through a southbound interface; the central unit provides a network information management function, maintains all statistical information and configuration-related information about the basic network entity through a RAN information base, and discloses original data to a northbound interface for higher-layer application programs to use; the CUs also support real-time applications, and event notification services of the host server to initiate queries to the RAN information base to perform operations, issuing control commands through the northbound interface.
Preferably, in the central unit, the controller layer communicates with the functional entity RAN NF through a RAN controller agent, connecting the distributed and centralized NFs with the logical centralized controller; the RAN controller agent is used as a middleware between the controller and the NF, has a local data storage function and stores the latest monitoring information from the NF; the RAN controller agent is used for controlling the data volume sent to the controller layer; the southbound interface is a unified interface between the RAN controller agent and the controller for monitoring and reconfiguring NFs.
Preferably, the distribution unit provides a virtual control function, providing precise definition and scope for control operations via access layer protocols, and the control modules adopt the same structure, providing functionality according to the scope of their respective protocols.
Preferably, each programmable NF in the central unit and the distribution units supports interaction with the RAN controller agent to exchange control information with northbound applications deployed on top of the controller; an interactive interface is arranged between the RAN controller agent and the RAN data analysis function, and the RAN data analysis function is responsible for collecting monitoring information related to the user equipment and the radio access network; the RAN controller agent transmits the information obtained from the RAN data analysis function to the controller and then to the northbound application program, and the RAN controller agent transmits the information obtained from the RAN data analysis function to the controller and then to the northbound application program; the RAN controller agent also routes reconfiguration information from the controller to the various functional entities in the central unit and the distribution units.
Preferably, the RAN software architecture is also capable of being extended according to grid requirements.
Preferably, the amplifier part of the radio frequency remote unit is responsible for amplifying the transmission energy of the wireless signal and consists of a microwave integrated circuit; the transceiver part is responsible for the processing of the radio signals, including digital-to-analog conversion and analog-to-digital conversion.
Preferably, the radio frequency far-end unit receives radio frequency signals through the antenna feeder, down-converts the received signals to intermediate frequency signals, and sends the intermediate frequency signals to the baseband processing unit for processing after amplification processing, analog-to-digital conversion, digital down-conversion, matched filtering and automatic gain control; receiving downlink baseband data transmitted by a baseband processing unit, forwarding cascaded radio frequency remote unit data, and performing filtering, digital-to-analog conversion and radio frequency signal up-conversion on a downlink signal; the radio frequency channel receiving and transmitting multiplexing function is provided, so that the receiving and the transmitting share one antenna channel, and the filtering function is provided.
Preferably, the device adopts a three-level software architecture of a central unit/a distribution unit/a radio frequency remote unit, supports the combination of the central unit/the distribution unit, and supports the calculation of multiple access edges and the function sinking of a user port; support communication, computing, storage capabilities; supporting interworking with a data network; the support provides network management capability of the communication network and deeply fuses AI analysis capability.
The invention has the following beneficial effects: the small 5G power base station can provide a complete wireless access solution, simultaneously provides communication, calculation and storage functions, deeply integrates AI application capacity, can be directly accessed to a power grid application platform, and supports customized development aiming at power service requirements.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic position diagram of a power small base station information receiving device based on 5G technology in a 5G communication network;
fig. 2 and 3 are schematic diagrams of a power small cell base station information receiving device based on the 5G technology.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment of the application provides a little basic station information receiver of electric power based on 5G technique, the position of device in 5G communication network is as shown in fig. 1, this integration little basic station is based on white box ization open platform, be applicable to the electric wire netting and use the scene, if (for example public network low time ductility, security etc. can not satisfy electric power business demand region, in the transformer substation, join in marriage electrical room, current conversion station, transmission line corridor etc. provide complete wireless access solution, provide communication simultaneously, calculate, memory function, the deep integrated AI application ability, can directly access electric wire netting application platform to support to the customization development of electric power business demand.
As shown in fig. 2 and fig. 3, the electric small cell information receiving apparatus based on the 5G technology includes a BBU (Baseband Unit) and an RRU (Remote Radio Unit), and relates to top layer design, CU/DU protocol stack software development and debugging, physical layer protocol stack software development and debugging, driver software development and debugging, Radio frequency device software/hardware development and debugging, and the like; meanwhile, the UPF/MEC is integrated to perform local processing and analysis of data, so that the functions of calculation and storage are provided, and the deep fusion AI capability is supported. Wherein:
(1) BBU (Baseband Unit ):
the BBU is used as a core component of the air interface access of the integrated small base station and can bear the basic capability of the radio access network such as baseband processing, signaling processing, state monitoring and the like. An Intel FlexRAN hardware reference architecture is introduced into the BBU so as to support a fully virtualized radio access network, good support is provided for network slicing, the performance of the traditional radio access network BBU can be realized in a general x86 server platform, and 5G radio connection with high throughput and low time delay is provided. Compared with the traditional universal server, the BBU can meet the basic telecommunication network function and performance requirements, and can meet the deployment and application of edge scenes.
The hardware design of the BBU specifically comprises the following steps: the hardware platform based on the general processor (x86) and the programmable logic device (FPGA) is developed in a combined mode and specifically comprises a transmission module, a baseband module, a control module and a power supply module. The transmission module is responsible for completing communication and protocol adaptation, and the baseband module is responsible for completing upper-layer protocol processing, signal coding and decoding and modulation and demodulation and communication with the radio frequency module; the control module is responsible for clock management, signaling processing and operation processing, and the power supply module is responsible for power supply.
The software design of the BBU specifically comprises the following steps:
wherein, the BBU includes a CU (Centralized Unit) and a DU (Distributed Unit), and supports virtualization and containerization. Mobile Edge Computing (MEC) software can be deployed on the BBU, and can be combined with the Internet of things, so that the expansion of the networking function is supported, and diversified deployment requirements of operators and vertical industries are supported based on standardized interfaces.
The RAN (radio access network) software architecture of the BBU adopts a baseline architecture, conforms to the 3GPP Release specification related to 5G RAN, and has the characteristics that a Service Data Adaptation Protocol (SDAP) layer is added, a CU and a DU are separated and are communicated through an F1 interface; meanwhile, the RAN adds a controller layer to provide an interface for introducing RAN control functions into some application programs to implement.
Specifically, the controller layer on the CU consists of cross-slices (XSC), inter-slice controllers (ISC), and corresponding Applications (APP) running on the northbound interface (NBI). The control commands and the interaction with the gbb (5G base station) take place via the southbound interface (SoBI).
The CU part provides network information management functions, maintaining all statistical and configuration-related information about the underlying network entities via the RAN Information Base (RIB). Current implementations of RIB expose raw data to the northbound API for use by higher level applications. The CU sections also support real-time applications. The application, as well as the event notification service of the host server, initiates an inquiry to the RIB to perform an operation, issuing a control command through the northbound interface. Real-time application execution is supported, such as a MAC scheduler.
In the CU, the controller layer communicates with the RAN NF (functional entity) through a RAN Controller Agent (RCA), connecting the distributed and centralized NFs with the logical centralized controller. The RCA is used as a middleware between the controller and the NF, has a local data storage function, and stores the latest monitoring information from the NF; RCA is used for controlling the data volume sent to the controller layer; SoBI is a unified interface between RCAs and controllers for monitoring and reconfiguring NFs.
The DU part provides a virtual control function, provides precise definition and range for control operation through access layer protocols (RRC, MAC/RLC, PDCP), and the control modules adopt the same structure, provides functions according to the range of their respective protocols, and implements, for example, a MAC/RLC control module for scheduling, an RRC control module for radio resource control, and the like.
Each programmable NF in the DU and CU supports interaction with the RCA to exchange control information with northbound applications deployed on top of the controller. There is an interworking interface between the RCA and a RAN data analysis function (RAN-DAF) that is responsible for collecting monitoring information related to the User Equipment (UE) and the RAN, such as Channel Quality Indicators (CQI), power levels, path loss, radio link quality, radio resource usage, Modulation and Coding Schemes (MCS), Radio Link Control (RLC) buffer status information, etc. The RCA may forward information obtained from the RAN-DAF to the controller and then to the northbound application, and the RCA may forward information obtained from the RAN-DAF to the controller and then to the northbound application, such as slice RRM, slice-aware RAT selection, elastic resource control, etc. The RCA also routes reconfiguration information from the controller to the respective NFs in the CUs and DUs.
In addition, the RAN software architecture is also expanded to meet possible grid requirements, so that the network architecture is transitioned to a more decentralized system, and digitization thereof is accelerated. For example, multiple VNFs including SaaS and IaaS, multiple VNFs for Self-X functionality, etc. may be provided. In addition, the power grid is a key infrastructure core part, so that the service quality is guaranteed to be important, and the self-optimization process of the performance KPI of the power grid can be further provided.
In particular, the extension part of the RAN, also includes methods to implement identification and data routing optimization for small and even ultra-small IoT devices. At the resource and function level, a large number of application-specific VNFs deployed on the edge side are included, and these VNFs can be used for power grid infrastructure monitoring, power grid control digitization, implementation of separation of abstract description and entity devices by constructing power grid assets using a digital twin technology, introduction of a block chain technology to store critical data in a clearly traceable manner, convenience of infrastructure maintenance and safer media interaction, and high-precision mobility management services, and can better manage new generation internet of things devices, such as unmanned aerial vehicles, to perform automatic security inspection.
(2) RRU (Remote Radio Unit, Radio Remote Unit):
the RRU is mainly composed of hardware, software specifically comprises a radio frequency function and a part of Ethernet communication function for convergence and statistical multiplexing, and the part of the Ethernet function is moved to the RRU, so that some convergence and statistical multiplexing work can be carried out before network forwarding, and the bandwidth pressure of forwarded data is reduced.
The RRU hardware mainly comprises an amplifier part and a transceiver part, is responsible for control and processing of a radio frequency part circuit, and connects an antenna part and a BBU part. The amplifier part of the RRU is responsible for amplifying the transmission energy of the wireless signal and mainly comprises a microwave integrated circuit; the transceiver is responsible for processing wireless signals, and comprises a DA (digital-to-analog conversion) part and an AD (analog-to-digital conversion) part, and the digital processing function can be realized by an FPGA (field programmable gate array), a DSP (digital signal processor) or a CPU (central processing unit).
Specifically, the RRU receives a radio frequency signal through an antenna feeder, down-converts the received signal to an intermediate frequency signal, and sends the intermediate frequency signal to the BBU after amplification processing, analog-to-digital conversion, digital down-conversion, matched filtering, and automatic gain control; receiving downlink baseband data transmitted by the BBU, forwarding the cascaded RRU data, and performing filtering, digital-to-analog conversion and radio frequency signal up-conversion on a downlink signal; the radio frequency channel receiving and transmitting multiplexing function is provided, so that the receiving and the transmitting share one antenna channel, and the filtering function is provided.
The method and the device adopt a three-level software architecture of the CU/DU/RRU to support the functions of CU/DU combination, MEC (multi-access edge calculation), UPF (user port function) sinking and the like. Specifically, the local UPF component of the power 5G is based on a cloud IT architecture, each functional entity is software-decoupled, and can be deployed on a general x86 server, and different functional components are combined according to the power 5G networking requirements, so that flexible deployment is achieved.
The method meets the requirements of efficient and flexible deployment and industry differentiation through the functions of the simplest UPF, improves the industrial value through increment, and avoids the increase of research and development and maintenance cost caused by the fragmented customization requirement.
In a scenario with low requirements on UPF throughput and delay, an acceleration scheme combining software and hardware can be considered. For example, the UPF cost performance is improved by adopting the functions of automatic hashing of a standard network card and the like and the frequency load allocation function of the CPU. In a scene with strict requirements on various indexes of the UPF, the FPGA intelligent network card is used as standard acceleration hardware, and based on a hardware acceleration technology, the selection of the acceleration hardware needs to consider the high concurrency and low time delay processing capability of the hardware, so that the flexible adjustment of an acceleration function is supported.
The 5G MEC platform component provides communication, calculation and storage supporting capabilities, supports intercommunication with a data network, provides network management capabilities of the communication network and deeply integrates AI analysis capabilities.
The network management software system provides an operation maintenance management function, is realized based on a NetConf/TR069 southward interface, supports the integration of OMC network management equipment and base station equipment of different manufacturers, and promotes the unified management and control and intelligent operation and maintenance of the 5G wireless small base station by the core concept of cloud network fusion and intelligent management and control.
Corresponding to the above embodiments, an embodiment of the present invention provides a computer storage medium, including: at least one memory and at least one processor;
the memory is used for storing one or more program instructions;
the processor is used for running one or more program instructions to execute a power transmission network optimal service path planning method.
In accordance with the embodiments, the present invention provides a computer-readable storage medium, where one or more program instructions are contained in the computer-readable storage medium, and the one or more program instructions are used for a processor to execute a method for planning an optimal service path of an electric power transmission network.
The embodiment of the invention discloses a computer-readable storage medium, in which computer program instructions are stored, and when the computer program instructions are run on a computer, the computer is caused to execute the above method for planning the optimal service path of the power transmission network.
In an embodiment of the invention, the processor may be an integrated circuit chip having signal processing capability. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete Gate or transistor logic device, discrete hardware component.
The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The processor reads the information in the storage medium and completes the steps of the method in combination with the hardware.
The storage medium may be a memory, for example, which may be volatile memory or nonvolatile memory, or which may include both volatile and nonvolatile memory.
The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory.
The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), SLDRAM (SLDRAM), and Direct Rambus RAM (DRRAM).
The storage media described in connection with the embodiments of the invention are intended to comprise, without being limited to, these and any other suitable types of memory.
Those skilled in the art will appreciate that the functionality described in the present invention may be implemented in a combination of hardware and software in one or more of the examples described above. When software is applied, the corresponding functionality may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made on the basis of the technical solutions of the present invention should be included in the scope of the present invention.
Claims (10)
1. A small power base station information receiving device based on 5G technology is characterized by comprising: the system comprises a baseband processing unit and a radio frequency remote unit;
the hardware design of the baseband processing unit specifically comprises a transmission module, a baseband module, a control module and a power module, wherein the transmission module is responsible for completing communication and protocol adaptation, and the baseband module is responsible for completing upper-layer protocol processing, signal coding and decoding and modulation and demodulation and communication with a radio frequency module; the control module is responsible for clock management, signaling processing and operation processing, and the power supply module is responsible for power supply;
the software design of the baseband processing unit specifically comprises a central unit and a distribution unit, the central unit and the distribution unit are separately communicated through an F1 interface by adopting a structure conforming to a 5G RAN system and setting a service data adaptation protocol layer;
the radio frequency far-end unit hardware design specifically comprises an amplifier part and a transceiver part, is responsible for the control and processing of a radio frequency part circuit, and connects an antenna part with a baseband processing unit;
the radio frequency remote unit software design specifically includes a radio frequency function and a part of ethernet communication function for convergence and statistical multiplexing.
2. The small power base station information receiving device based on 5G technology as claimed in claim 1, wherein the baseband processing unit adds a controller layer to provide an interface for introducing RAN control functions into some application programs.
3. The electric small base station information receiving device based on 5G technology as claimed in claim 2, characterized in that the controller layer on the central unit is composed of cross slices, an inner slice controller and corresponding application programs running on a northbound interface; the control command and the interaction with the 5G base station are carried out through a southbound interface; the central unit provides a network information management function, maintains all statistical information and configuration-related information about the basic network entity through a RAN information base, and discloses original data to a northbound interface for higher-layer application programs to use; the CUs also support real-time applications, and event notification services of the host server to initiate queries to the RAN information base to perform operations, issuing control commands through the northbound interface.
4. The small power base station information receiving apparatus based on 5G technology according to claim 3, wherein in the central unit, the controller layer communicates with the functional entity RAN NF through a RAN controller agent, and connects the distributed and centralized NFs with the logical centralized controller; the RAN controller agent is used as a middleware between the controller and the NF, has a local data storage function and stores the latest monitoring information from the NF; the RAN controller agent is used for controlling the data volume sent to the controller layer; the southbound interface is a unified interface between the RAN controller agent and the controller for monitoring and reconfiguring NFs.
5. The electric small cell information receiving apparatus based on 5G technology as claimed in claim 4, wherein the distribution unit provides a virtual control function, provides precise definition and range for control operation through access layer protocol, and the control module adopts the same structure, providing function according to the range of its corresponding protocol.
6. The 5G technology-based power small cell information receiving apparatus of claim 5, wherein each programmable NF in the central unit and the distribution unit supports interaction with a RAN controller agent to exchange control information with a northbound application deployed on top of the controller; an interactive interface is arranged between the RAN controller agent and the RAN data analysis function, and the RAN data analysis function is responsible for collecting monitoring information related to the user equipment and the radio access network; the RAN controller agent transmits the information obtained from the RAN data analysis function to the controller and then to the northbound application program, and the RAN controller agent transmits the information obtained from the RAN data analysis function to the controller and then to the northbound application program; the RAN controller agent also routes reconfiguration information from the controller to the various functional entities in the central unit and the distribution units.
7. The small power base station information receiving device based on 5G technology as claimed in claim 1, wherein RAN software architecture can be further expanded according to power grid requirements.
8. The electric small base station information receiving device based on 5G technology as claimed in claim 1, wherein the amplifier part of the radio frequency remote unit, which is responsible for amplifying the transmission energy of the wireless signal, is composed of a microwave integrated circuit; the transceiver part is responsible for the processing of the radio signals, including digital-to-analog conversion and analog-to-digital conversion.
9. The information receiving device of the small power base station based on the 5G technology according to claim 8, wherein the radio frequency remote unit receives a radio frequency signal through an antenna feeder, down-converts the received signal to an intermediate frequency signal, and sends the intermediate frequency signal to the baseband processing unit for processing after the amplification processing, the analog-to-digital conversion, the digital down-conversion, the matched filtering and the automatic gain control; receiving downlink baseband data transmitted by a baseband processing unit, forwarding cascaded radio frequency remote unit data, and performing filtering, digital-to-analog conversion and radio frequency signal up-conversion on a downlink signal; the radio frequency channel receiving and transmitting multiplexing function is provided, so that the receiving and the transmitting share one antenna channel, and the filtering function is provided.
10. The information receiving device of the small power base station based on the 5G technology according to claim 1, wherein the device adopts a three-level software architecture of a central unit/a distribution unit/a radio frequency remote unit, supports the combination of the central unit/the distribution unit, and supports the calculation of multiple access edges and the function sinking of a user port; support communication, computing, storage capabilities; supporting interworking with a data network; the support provides network management capability of the communication network and deeply fuses AI analysis capability.
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