CN110061765A - A kind of onboard double 2 × 2 MIMO wireless control systems of 5G - Google Patents
A kind of onboard double 2 × 2 MIMO wireless control systems of 5G Download PDFInfo
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- CN110061765A CN110061765A CN201910307172.6A CN201910307172A CN110061765A CN 110061765 A CN110061765 A CN 110061765A CN 201910307172 A CN201910307172 A CN 201910307172A CN 110061765 A CN110061765 A CN 110061765A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
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Abstract
The present invention discloses a kind of onboard double 2 × 2MIMO wireless control systems of 5G, including hardware platform, bottom layer driving mould group and upper layer application mould group；At least there are the hardware platform two idle spi bus and several GPIO ports, power supply unit to connect with GPIO port, power for hardware platform；Two panels AD9371 chip, an AD9528 chip and a fpga chip are carried on hardware platform, wherein two panels AD9371 chip and an AD9528 chip share the first spi bus, and are respectively controlled by different CS chip selection signals.2 AD9371 chips of onboard platform intergration in the present invention, to support the MIMO of double 2 × 2 (namely 4 × 4), it is only necessary to which 16 onboard platforms just constitute 64 aerial arrays, not only reduce cost, and installation space greatly reduces, and is laid out also more compact, reasonable.
Description
Technical field
The present invention relates to domain of communication equipment, are specifically related to a kind of wireless control system for 5G communication.
Background technique
5G network be also latest generation mobile communications network in the 5th generation, up to tens on peak transmission rate theory
G (unit: bps, i.e. bits per second) is as many as hundreds times faster than 4G network currently in use.
Since transmission of the signal on shf band has the shortcomings that loss is big, transmission range is short, this technology before this
Problem becomes always the bottleneck for restricting industry network Development, until Samsung of South Korea in 2014 utilizes 64 antenna elements
Adaptive array transmission technology has captured this problem, becomes high-speed remote of the signal on shf band from transmission
It may.2016, Nokia cooperated to complete the test job of 5G signal in Canada with Bell Co..The end of the year 2017, in state
In the 78th plenary session of telecommunication standard tissue 3GPP RAN of border, 5G NR version is formally issued, this is that first, the whole world is commercially available
The 5G standard of deployment.To the end of the year 2018, National Industrial and informationization portion are respectively China Telecom, China Mobile and China Unicom
5G test frequency resource has been divided, has indicated that 5G network formally enters deployment and commercial stage at home.
Under this overall background, as the foundation stone of 5G network, aerial array product and its control system with MIMO just at
For an indispensable important component for constructing 5G network.The aerial array of current MIMO substantially uses 2 × 2
(2 × 2, i.e., 2 receive+2 hairs to mimo antenna battle array, and 1 receipts, 1 hair is an antenna pair, it is that a radio frequency system can work normally most
Junior unit), wireless control system software is also based on the exploitation of this aerial array.Such as HJX-AD9371-SDR software wireless
Level platform.
Similar HJX-AD9371-SDR Software Radio platform all haves the defects that following and deficiency substantially at present:
(1) current platform is only assessment version (AD9371 Evaluation Boards) mostly, is available to visitor
Family carries out test and secondary development, from real commercial there are also with a certain distance from；
(2) platform only supports 2 × 2 MIMO (to use a piece of AD9371 chip, the RF transmitting-receiving received with one 2 with 2 hairs
Device), if to form 64 aerial arrays (i.e. 64 × 64 MIMO), 32 onboard platforms are needed, not only cost is high, and
And biggish installation space is occupied, so that layout is more difficult；
(3) the control software of the platform is developed based on Atmel ARM9 embedded platform, in design its bottom layer driving with it is upper
The degree of coupling between layer application is higher, not fully follows the theory of embedded development, and upper layer application developer needs to close closely
The structure design of bottom hardware is infused, therefore portable poor；
(4) for the purpose of safety, which applies hardware watchdog equipment, this causes platform that should not safeguard and grasp
Make, although platform software provides the function of console interaction for user, operability is poor, and reliability is not high, in operation slightly
There is careless or upper layer application that cannot carry out dog feeding operation in time because certain reason is hung up, house dog will lead to system weight
It opens.
Summary of the invention
Goal of the invention: present invention aims in view of the deficiencies of the prior art, provide a kind of onboard double 2 × 2 MIMO of 5G without
Line control system supports 4 × 4 mimo antenna battle arrays, meets the layout needs of set installation space, reduces cost, realizes business
Change.
Technical solution: onboard double 2 × 2 MIMO wireless control systems of 5G of the present invention, including hardware platform, bottom drive
Dynamic model group and upper layer application mould group；
The hardware platform at least has two idle spi bus and several GPIO ports, power supply unit and GPIO port
Connection is powered for hardware platform；Two panels AD9371 chip, an AD9528 chip and a fpga chip are carried on hardware platform,
Middle two panels AD9371 chip and an AD9528 chip share the first spi bus, and are carried out respectively by different CS chip selection signals
Control, AD9528 chip are used to provide operating clock signals for AD9371 chip, and fpga chip is handed over the second spi bus
Mutually, function relevant to configuration AD9371 and front channels parameter is provided；
The bottom layer driving mould group include the first spi bus device management module, the second spi bus device management module and
GPIO control module, the first spi bus device management module and the first spi bus communicate, and are controlled by upper layer application mould group
Two panels AD9371 chip is configured, two panels AD9371 chip using different copies, identical configuration parameter form into
Row configuration；The second spi bus device management module and the second spi bus communicate, and the resource that driving plate loading system provides is real
The now read-write of each chipset of spi bus, the control of GPIO port, and IOCTL interface is provided for upper layer application；
Upper layer application mould group passes through the IOCTL interface that bottom layer driving mould group provides, with the first spi bus device management module
Communication, the first spi bus of control are written and read AD9371 chip.
Further preferably technical solution is the present invention, and the hardware platform is ARM9 embedded platform or ARM
Cortex-A8 embedded platform.
Preferably, the hardware platform also has at least one ETHERNET network interface resource and a serial ports or USB
Mouth resource；The hardware platform is connected in interchanger or local area network by ETHERNET network interface resource.
Preferably, the bottom layer driving mould group controls GPIO end feet, and is abstracted, and makes it to upper layer application mould group
It is invisible.
Preferably, the upper layer application mould group includes local O&M module, configuration management module and remote monitoring module.
Preferably, the upper layer application mould group follows the general api interface pair of ADI standard configuration process and its offer
AD9371 chip is configured one by one.
The present invention also provides a kind of 5G aerial arrays, including 16 above-mentioned wireless control systems, each wireless control system
It is unified to power using identical hardware environment, it is unified to configure.
The utility model has the advantages that (1) present invention is designed directly against commercial use and demand, purpose is stronger；In the present invention
2 AD9371 chips of onboard platform intergration, to support the MIMO of double 2 × 2 (namely 4 × 4), it is only necessary to 16 onboard platforms
64 aerial arrays are just constituted, not only reduce cost, and installation space greatly reduces, are laid out also more compact, reasonable；
(2) control software of the invention follows the design concept of embedded system, answers bottom layer driving and upper layer in design
Function mutually separates, and upper layer application thus greatly reduces two without paying close attention to the driving of lower layer is how to interact with hardware
The degree of coupling between person, so that software is transplanted in new embedded platform in which can be convenient；
(3) the onboard platform in the present invention is not necessarily to house dog equipment, but provides safety by software systems itself
It supports, therefore is more conducive to safeguard；
(4) Control System Software of the invention unified Socket interface is externally provided can according to corresponding interface protocol
To pass through network implementations Distant supervision and control.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wireless control system of the present invention.
Fig. 2 is the local O&M module flow diagram in upper layer application functional module of the present invention.
Fig. 3 is the configuration management module flow chart in upper layer application functional module of the present invention.
Fig. 4 is the remote monitoring module flow chart in upper layer application functional module of the present invention.
Specific embodiment
Technical solution of the present invention is described in detail below by attached drawing, but protection scope of the present invention is not limited to
The embodiment.
Embodiment: a kind of onboard double 2 × 2 MIMO wireless control systems of 5G, as shown in Figure 1, including hardware platform, bottom
Drive mould group and upper layer application mould group.
The hardware platform is ARM9 embedded platform, ARM Cortex-A8 embedded platform or other platforms, but selected
The platform selected at least can provide 2 idle onboard included spi bus, an ETHERNET network interface resource, a serial ports or
USB port resource and several GPIO port resources.Power supply unit is connect with GPIO port, is powered for hardware platform；On hardware platform
Carry two panels AD9371 chip, an AD9528 chip and a fpga chip.Single onboard system uses double 2 × 2 MIMO structures,
This 2 are respectively configured by ARM system software (including bottom layer driving and upper layer application) using 2 AD9371 chips
The RF transceiver of AD9371 is to normal operating conditions, to realize 4 × 4 MIMO functions.Two panels AD9371 chip and an AD9528
Chip shares the first spi bus, and is respectively controlled by different CS chip selection signals, and AD9528 chip is used to be AD9371
Chip provides operating clock signals, therefore can be dead with configured in advance, to be not take up spi bus resource；Fpga chip is referring to existing
Some radio platforms are interacted with the second spi bus, provide function relevant to configuration AD9371 and front channels parameter
Energy.
The bottom layer driving mould group include the first spi bus device management module, the second spi bus device management module and
GPIO control module, the first spi bus device management module and the first spi bus communicate, and are controlled by upper layer application mould group
Two panels AD9371 chip is configured, two panels AD9371 chip using different copies, identical configuration parameter form into
Row configuration；The second spi bus device management module and the second spi bus communicate, and the resource that driving plate loading system provides is real
The now read-write of each chipset of spi bus, the control of GPIO port, and IOCTL interface is provided for upper layer application；Bottom layer driving
Mould group controls GPIO end feet, and is abstracted, and keeps it invisible to upper layer application mould group.This wireless control system follows embedding
The utility strategies of embedded system draw a clear the function boundary of bottom layer driving and upper layer application, bottom layer driving are made to be conceived to particular hardware
Platform, realization directly controls hardware device, and upper layer application is then conceived to specific application scenarios, and correlation function is converted
For the operation unrelated with hardware, and required IOCTL is determined for these operations.
Upper layer application mould group passes through the IOCTL interface that bottom layer driving mould group provides, with the first spi bus device management module
Communication, the first spi bus of control are written and read AD9371 chip.The upper layer application mould group includes local O&M mould
Block, configuration management module and remote monitoring module.The upper layer application mould group follows the logical of ADI standard configuration process and its offer
AD9371 chip is configured one by one with api interface.
In terms of operability, in the present embodiment other than the console interactive interface in addition to providing local of wireless control system,
The figure application interactive interface in PC machine also is provided for user, allows user that onboard system is passed through ETHERNET connection
Into interchanger or local area network, to realize the Distant supervision and control to onboard system.
To ensure system safety, other than the necessary port of opening, unnecessary port and related service are closed, and increase
Password system log authentication function.
Using the wireless control system of 16 the present embodiment, 64 aerial arrays are formed, are supplied to the use of the base station 5G, each nothing
Line control system uses identical hardware environment, unified to power, unified to configure.
Local O&M block process such as Fig. 2, in upper layer application functional module are as follows:
1. operation maintenance personnel starts to access local board system；
2. operation maintenance personnel checks LOG information, board system current operating conditions are analyzed；
3. if there is failure:
It is equipment fault, then analyzing failure cause and excludes；
It is software fault or software function is needed to upgrade, then updates new software；
4. if operation maintenance personnel is re-powered to onboard system, checks configuration management module after troubleshooting or update software
Whether operation is normal, and confirmation is errorless, then terminates local maintenance work；
5. then operation maintenance personnel can close unnecessary service and corresponding port, and add if there is system security risk
Strong entry password management.
Configuration management module process such as Fig. 3, in upper layer application functional module are as follows:
1. configuration system loads default configuration information first；
2. continuing load driver module, and open corresponding device file；
3. loading successfully, then FPGA state is checked；
4. being initially configured the external clock (can realize by configuring AD9528) of AD9371 if FPGA status ready；
5. succeeding, then ADI process is followed, first AD9371 is configured according to configuration copy 1 and (uses 9371_ in Fig. 3
0 mark)；
6. succeeding, then second AD9371 is configured and (identified in Fig. 3 with 9371_1) according to configuration copy 2；
7. succeeding, then preposition RF channel parameter is configured；
8. succeeding, then configuration work successfully completes；
Otherwise, if either step fails in previous action, configuration work fails, and configuration system will be error message
It is included in system LOG, can be warned by controlling LED light, be checked and use for the operation maintenance personnel later period.
Remote monitoring module process such as Fig. 4, in upper layer application functional module are as follows:
1. PC machine end staff starts to check onboard system operation situation；
2. PC machine end, which is applied, issues connection request to board by local area network；
3. connection request can be received if board system normal operation, connection is established with the application of PC machine end；
4. PC machine end applies to board system and issues status query request；
It is applied 5. current state is fed back to PC machine end by board system；
Judge board system with the presence or absence of failure according to the status information of feedback 6. PC machine end is applied；
7. then PC machine end applies to board system sending and disconnects request, board system such as board system normal operation
It will be switched off the connection applied with PC machine end；Otherwise, if board system is without response, or there are failure, PC machine end monitoring personnels for feedback
It will notice operation maintenance personnel intervention.
As described above, must not be explained although the present invention has been indicated and described referring to specific preferred embodiment
For the limitation to invention itself.It without prejudice to the spirit and scope of the invention as defined in the appended claims, can be right
Various changes can be made in the form and details for it.
Claims (7)
1. a kind of onboard double 2 × 2 MIMO wireless control systems of 5G, including hardware platform, bottom layer driving mould group and upper layer application mould
Group；
It is characterized in that, the hardware platform at least has two idle spi bus and a several GPIO ports, power supply unit with
GPIO port connection, powers for hardware platform；Two panels AD9371 chip, an AD9528 chip and a FPGA are carried on hardware platform
Chip, wherein two panels AD9371 chip and an AD9528 chip share the first spi bus, and pass through different CS chip selection signal point
Do not controlled, AD9528 chip be used for for AD9371 chip provide operating clock signals, fpga chip and the second spi bus into
Row interaction provides function relevant to configuration AD9371 and front channels parameter；
The bottom layer driving mould group includes the first spi bus device management module, the second spi bus device management module and GPIO
Control module, the first spi bus device management module and the first spi bus communicate, and are controlled by upper layer application mould group to two
Piece AD9371 chip is configured, and two panels AD9371 chip is matched in the form of different copies, identical configuration parameter
It sets；The second spi bus device management module and the second spi bus communicate, and the resource that driving plate loading system provides realizes SPI
The read-write of each chipset of bus, the control of GPIO port, and IOCTL interface is provided for upper layer application；
Upper layer application mould group passes through the IOCTL interface that bottom layer driving mould group provides, logical with the first spi bus device management module
News, the first spi bus of control are written and read AD9371 chip.
2. onboard double 2 × 2 MIMO wireless control systems of 5G according to claim 1, which is characterized in that the hardware is flat
Platform is ARM9 embedded platform or ARM Cortex-A8 embedded platform.
3. onboard double 2 × 2 MIMO wireless control systems of 5G according to claim 2, which is characterized in that the hardware is flat
Platform also has at least one ETHERNET network interface resource and a serial ports or USB port resource；The hardware platform passes through
ETHERNET network interface resource is connected in interchanger or local area network.
4. onboard double 2 × 2 MIMO wireless control systems of 5G according to claim 1, which is characterized in that the bottom drives
Dynamic model group controls GPIO end feet, and is abstracted, and keeps it invisible to upper layer application mould group.
5. onboard double 2 × 2 MIMO wireless control systems of 5G according to claim 1, which is characterized in that answer on the upper layer
It include local O&M module, configuration management module and remote monitoring module with mould group.
6. onboard double 2 × 2 MIMO wireless control systems of 5G according to claim 5, which is characterized in that answer on the upper layer
AD9371 chip is configured one by one with the general api interface that mould group follows ADI standard configuration process and its offer.
7. a kind of 5G aerial array, including wireless control system described in 16 claim 1~6 any one, each wireless controlled
System processed uses identical hardware environment, unified to power, unified to configure.
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| CN201910307172.6A CN110061765B (en) | 2019-04-17 | 2019-04-17 | 5G onboard double 2X 2MIMO wireless control system |
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| CN201910307172.6A CN110061765B (en) | 2019-04-17 | 2019-04-17 | 5G onboard double 2X 2MIMO wireless control system |
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| CN110061765B CN110061765B (en) | 2021-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021109525A1 (en) * | 2019-12-03 | 2021-06-10 | 南京汇君半导体科技有限公司 | Method for digital wave control signal interface of large-scale antenna array |
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| EP1460496A1 (en) * | 2003-03-19 | 2004-09-22 | Robert Bosch Gmbh | Peripheral chip set |
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| WO2014160161A1 (en) * | 2013-03-14 | 2014-10-02 | Rosemount Inc. | Communications unit for an industrial process network |
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