CN104811230A - Multi-radio wireless networking device - Google Patents
Multi-radio wireless networking device Download PDFInfo
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- CN104811230A CN104811230A CN201510134936.8A CN201510134936A CN104811230A CN 104811230 A CN104811230 A CN 104811230A CN 201510134936 A CN201510134936 A CN 201510134936A CN 104811230 A CN104811230 A CN 104811230A
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Abstract
The invention provides a multi-radio wireless networking device. The device comprises a wireless subsystem, a bus unit, a wireless expansion unit, a central processing unit and a wired network interface; the wireless subsystem comprises wireless RF units; the bus unit reuses a physical data channel from the wireless subsystem to the central data processing unit; drive software can identify the different wireless RF units and ensure that each RF unit can work normally and independently, distribution of system resource is coordinated, and the conflict of resource use is avoided; and the wireless expansion unit expands wireless functions of the system, so that a single-path wireless system can be expanded into four wireless RF units that can work independently. The frequency spectrum is separated from the space in the multi-radio technology, so that electromagnetic waves can be radiated in a directed manner in certain independent frequency range, the data throughput of wireless network of the device is multiplied, and the connection reliability of the wireless network is improved.
Description
Technical field
The present invention relates to wireless network transmissions field, be specifically related to a kind of many wireless radiofrequencies networking equipment.
Background technology
The feature of multiple-input, multiple-output (MIMO) wireless system uses multiple antenna respectively at transmitting terminal and receiving terminal, transmitting terminal maps the data-signal that will send by space-time and is mapped on many antennas and sends, the decoding when signal that each antenna receives by receiving terminal carries out sky thus recover data-signal.
Mimo system can send simultaneously and receive multiple data flow, therefore can improve the capacity of wireless channel exponentially, and when not increasing frequency bandwidth and transmitted power, the availability of frequency spectrum can improve exponentially.
Common Wireless Communication Equipment, comprises wireless router, wireless bridge and wireless relay apparatus.Wireless router, adopts MIMO scheme more.Equipment one general configuration many omnidirectional antennas, for wireless coverage and the data wireless transmission of indoor and outdoors.Wireless bridge, uses gain directional antenna more, for setting up point-to-point and point-to-multipoint wireless network.These common Wireless Communication Equipment do not possess routing function between wireless network (in fact, wireless router or wireless bridge realize be data retransmission) between cable network and wireless network; In addition, during wireless network is built, usually due to apart from too far away between data sending terminal and receiving terminal, or there are the reasons such as shelter, the direct connection of point-to-point cannot be formed, need, by one or more wireless relay nodes forwarding data, to realize the Wireless Data Transmission between transmitting-receiving two-end by the mode of relay.Wireless relay apparatus adopts one or more omnidirectional antennas, realizes quorum sensing inhibitor and the wireless connections of omnidirectional 360 degree.The shortcoming of omnidirectional antenna is due to omnidirectional's energy dissipation, and make the decay of wireless signal very fast, cause the reduction of network transmission speed, for longer-distance remote point, the connection of network and reliability can not be guaranteed.In sum, Wireless Communication Equipment cannot realize data retransmission between different networks and route in the market, and the wireless device relay capabilities used as relay point is not enough, is difficult to the application needs meeting large-scale wireless networking.
Summary of the invention
The present invention is directed to above-mentioned prior art Problems existing to make improvements, namely the technical problem to be solved in the present invention is to provide a kind of many wireless radiofrequencies networking equipment, this many wireless radiofrequencies networking equipment is integrated with multiple radio frequency unit that can work independently, the configurable operating frequency of each radio frequency unit, modulating mode, mode of operation and transmitting power etc., and connect the directional antenna of high-gain.Many radio-frequency techniques by being separated in frequency spectrum and space, make electromagnetic wave can in certain separate frequency bands directed radiation, expand equipment wireless network data throughput exponentially, the connection reliability of wireless network have also been obtained lifting.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A kind of many wireless radiofrequencies networking equipment, comprising: wireless subsystem, bus unit, wireless extensions unit, CPU, wired network interface;
Described wireless subsystem comprises some radio frequency units;
Described bus unit is multiplexing to the physical data channel of central data processing unit by wireless subsystem; Its drive software can identify different radio frequency units, ensures that each radio frequency unit can independently normally work, the distribution of coherent system resource, avoids resource to use conflict;
Described wireless extensions unit is responsible for the expansion of system wireless systemic-function, wireless system is expanded to the radio frequency units that four tunnels can work independently;
Described CPU is responsible for the resource management of whole system, task scheduling and network management;
Described wired network interface is used for being connected with spider lines.
Described bus unit comprises HBIO bus and FPGA.
Described FPGA controls a SDIO interface and turns SDIO interface, complete left side SD Host with between the SD Host of right side while communicate;
SDIO interface supports SDIO 1bit pattern, SDIO 4bit pattern and SPI transmission mode, wherein, SDIO4bit mode transfer speed can be connected by DATA [3:0] CCLK CCMD six data wires with the transfer of data of each SD Host more than 100Mbps, FPGA; SD Host holds and drives by general category SD equipment development;
The outside Large Copacity SDRAM of two panels is used for the data cached buffer memory of data, interface occurs when preventing SDIO interface busy and blocks, the situations such as loss of data.
The invention has the beneficial effects as follows: the main distinction of the present invention and legacy wireless devices is equipment to be integrated with multiple radio frequency units that can work independently, each radio frequency units can configuration operation parameter separately, comprise operating frequency, adjustment modes, mode of operation and transmitting power etc., data can realize data retransmission between heterogeneous networks (comprising wireless network and cable network), complete the route between wireless network segment.Traditional wireless router and the general integrated single wireless network of wireless bridge device and multiple cable network, network data forwards, for bridge joint wireless network and cable network between wireless and cable network.If the present invention is realized by the mode of the system integration, multiple legacy wireless devices (such as wireless router or wireless bridge) and a cable router can be linked together.The effect of every platform wireless device is equivalent to a radio frequency units in the present invention, and cable router realizes route between different networks and exchanges data.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is structure principle chart of the present invention;
Fig. 2 is fpga logic block diagram of the present invention.
Embodiment
As shown in Figure 1, 2, the present invention discloses a kind of many wireless radiofrequencies networking equipment, comprising: wireless subsystem, bus unit, wireless extensions unit, CPU, wired network interface;
Wireless subsystem comprises some radio frequency units;
Bus unit is multiplexing to the physical data channel of central data processing unit by wireless subsystem; Its drive software can identify different radio frequency units, ensures that each radio frequency unit can independently normally work, the distribution of coherent system resource, avoids resource to use conflict;
Wireless extensions unit is responsible for the expansion of system wireless systemic-function, wireless system is expanded to the radio frequency units that four tunnels can work independently;
CPU is responsible for the resource management of whole system, task scheduling and network management;
Wired network interface is used for being connected with spider lines.
Bus unit comprises HBIO bus and FPGA.
FPGA controls a SDIO interface and turns SDIO interface, complete left side SD Host with between the SD Host of right side while communicate;
SDIO interface supports SDIO 1bit pattern, SDIO 4bit pattern and SPI transmission mode, wherein, SDIO 4bit mode transfer speed can be connected by DATA [3:0] CCLK CCMD six data wires with the transfer of data of each SD Host more than 100Mbps, FPGA; SD Host holds and drives by general category SD equipment development;
The outside Large Copacity SDRAM of two panels is used for the data cached buffer memory of data, interface occurs when preventing SDIO interface busy and blocks, the situations such as loss of data.
Below for four road wireless subsystems, the present invention is described further:
FPGA controls a SDIO interface and turns four SDIO interfaces, complete left side SD Host 0 with between the SDHost1 ~ SD Host4 of right side while communicate.
SDIO interface supports SDIO 1bit pattern, SDIO 4bit pattern and SPI transmission mode.Wherein SDIO4bit mode transfer speed can more than 100Mbps.FPGA is connected by DATA [3:0] CCLK CCMD six data wires with the transfer of data of each SD Host.SD Host holds and drives by general category SD equipment development.
The outside Large Copacity SDRAM of two panels is used for the data cached buffer memory of data, interface occurs when preventing SDIO interface busy and blocks, the situations such as loss of data.
FPGA internal logic main flow is as follows:
SD Host0 writes:
1, SD protocol analysis, data check:
Hold when receiving SD Host0 the instruction sent, first FPGA resolves instruction, identify.Then respond according to the sequential of SD agreement, read the data that SD Host0 sends simultaneously.Data check is carried out according to CRC check rule after reading completes.
2, Data Analysis, subpackage:
After receiving data, the data protocol that FPGA decides through consultation according to two ends is resolved data, and identifies the direction (SD Host1 ~ SD Host4) of each data transmission, is divided into four corresponding packets.
3, SDRAM controls:
The read-write of control SDRAM, by the data that are parsed stored in SDRAM, waits for that SD Host1 ~ SDHost4 reads.
4, SD protocol encapsulation:
When FPGA receives the reading command of SD Host1 ~ SD Host4, first from SDRAM, read corresponding data, then data are pressed SD protocol encapsulation.
5, Data Analysis, subpackage:
FPGA Real time identification SD Host1 ~ SD Host4 instruction, receives when reading instruction, sends packaged corresponding data.
SD Host0 reads:
1, SD protocol analysis, data check: instruction, the data of resolving, verifying SD Host1 ~ SD Host4.
2, data encapsulation, interpolation Host identify: the agreement that the data received are decided through consultation according to two ends encapsulated, identify Data Source.
3, SDRAM controls: write SDRAM, waits for that SD Host0 reads.
4, SD protocol encapsulation, SD Host0 instructions parse, sends the data to SD Host0.
In addition, can be realized by the mode of the system integration, multiple legacy wireless devices (such as wireless router) is linked together by a cable router.Every platform wireless device is equivalent to a wireless subsystem of channel wireless radio multi transmission equipment, and cable router realizes route between different networks and exchanges data.
To sum up, the present invention can be realized by the mode of the system integration, multiple legacy wireless devices (such as wireless router or wireless bridge) is linked together by a cable router.Every platform wireless device is equivalent to a radio frequency units in the present invention, and cable router realizes route between different networks and exchanges data.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the networking equipment of wireless radiofrequency more than, is characterized in that, comprising: wireless subsystem, bus unit, wireless extensions unit, CPU, wired network interface;
Described wireless subsystem comprises some radio frequency units;
Described bus unit is multiplexing to the physical data channel of central data processing unit by wireless subsystem; Its drive software can identify different radio frequency units, ensures that each radio frequency unit can independently normally work, the distribution of coherent system resource, avoids resource to use conflict;
Described wireless extensions unit is responsible for the expansion of system wireless systemic-function, wireless system is expanded to the radio frequency units that four tunnels can work independently;
Described CPU is responsible for the resource management of whole system, task scheduling and network management;
Described wired network interface is used for being connected with spider lines.
2. many wireless radiofrequencies networking equipment according to claim 1, is characterized in that: described bus unit comprises HBIO bus and FPGA.
3. many wireless radiofrequencies networking equipment according to claim 2, is characterized in that, described FPGA controls a SDIO interface and turns SDIO interface, complete left side SD Host with between the SD Host of right side while communicate;
SDIO interface supports SDIO 1bit pattern, SDIO 4bit pattern and SPI transmission mode, wherein, SDIO4bit mode transfer speed can be connected by DATA [3:0] CCLK CCMD six data wires with the transfer of data of each SD Host more than 100Mbps, FPGA; SD Host holds and drives by general category SD equipment development;
The outside Large Copacity SDRAM of two panels is used for the data cached buffer memory of data, interface occurs when preventing SDIO interface busy and blocks, the situations such as loss of data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510134936.8A CN104811230A (en) | 2015-03-26 | 2015-03-26 | Multi-radio wireless networking device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510134936.8A CN104811230A (en) | 2015-03-26 | 2015-03-26 | Multi-radio wireless networking device |
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| CN104811230A true CN104811230A (en) | 2015-07-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111198837A (en) * | 2019-12-25 | 2020-05-26 | 深圳市紫光同创电子有限公司 | SDIO interface system based on FPGA and controller bridging method |
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| CN101778493A (en) * | 2009-12-29 | 2010-07-14 | 中兴通讯股份有限公司 | Terminal equipment supporting various network access modes, system and realization method |
| WO2010138264A2 (en) * | 2009-05-26 | 2010-12-02 | Intel Corporation | Techniques for interworking between heterogeneous radios background |
| CN102098763A (en) * | 2010-12-29 | 2011-06-15 | 中兴通讯股份有限公司 | Dual-mode wireless terminal and handover method thereof |
| CN205051694U (en) * | 2015-03-26 | 2016-02-24 | 王灏 | Many wireless radiofrequencies network deployment equipment |
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2015
- 2015-03-26 CN CN201510134936.8A patent/CN104811230A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116040A (en) * | 2005-02-03 | 2008-01-30 | Bsh博施及西门子家用器具有限公司 | Method and device for controlling transition of at least one network-enabled device, in particular a household device, from a first network access means to a second network access means |
| WO2010138264A2 (en) * | 2009-05-26 | 2010-12-02 | Intel Corporation | Techniques for interworking between heterogeneous radios background |
| CN101778493A (en) * | 2009-12-29 | 2010-07-14 | 中兴通讯股份有限公司 | Terminal equipment supporting various network access modes, system and realization method |
| CN102098763A (en) * | 2010-12-29 | 2011-06-15 | 中兴通讯股份有限公司 | Dual-mode wireless terminal and handover method thereof |
| CN205051694U (en) * | 2015-03-26 | 2016-02-24 | 王灏 | Many wireless radiofrequencies network deployment equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111198837A (en) * | 2019-12-25 | 2020-05-26 | 深圳市紫光同创电子有限公司 | SDIO interface system based on FPGA and controller bridging method |
| CN111198837B (en) * | 2019-12-25 | 2022-07-26 | 深圳市紫光同创电子有限公司 | SDIO interface system based on FPGA and controller bridging method |
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Application publication date: 20150729 |