CN108768488B - Data transmission method and relay device - Google Patents
Data transmission method and relay device Download PDFInfo
- Publication number
- CN108768488B CN108768488B CN201810206424.1A CN201810206424A CN108768488B CN 108768488 B CN108768488 B CN 108768488B CN 201810206424 A CN201810206424 A CN 201810206424A CN 108768488 B CN108768488 B CN 108768488B
- Authority
- CN
- China
- Prior art keywords
- relay device
- data transmission
- communication connection
- communication
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
The invention relates to the technical field of wireless communication, and discloses a data transmission method and a relay device. The method comprises the following steps: each functional device in the same space establishes first communication connection with a first relay device respectively; each functional device in the same space performs data transmission with the first relay device through the first communication connection respectively so as to realize data transmission among the functional devices in the same space; the first relay devices in different spaces respectively establish second communication connection with the second relay devices; the first relay devices in different spaces respectively perform data transmission with the second relay devices through the second communication connection, so that data transmission between the first relay devices in different spaces is realized, and data transmission between the functional devices in different spaces is realized. Through the mode, the data transmission distance and the data transmission efficiency can be improved.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a data transmission method and a relay apparatus.
Background
The inventor of the invention finds that the frequency band of the communication protocol based on longer transmission distance of the existing relay station is generally smaller in bandwidth, and can not realize point-to-point rapid transmission of a large amount of data, for example, the frequency band communication protocol can not adapt to 4K super-definition video, VR technology and the like; or the existing relay station is based on a communication protocol with a larger bandwidth, although the existing relay station can meet the requirement of point-to-point rapid transmission of a large amount of data, the ductility of the existing relay station is poor, the transmission distance is short, obstacles cannot be bypassed, and only line-of-sight communication, namely, face-to-face communication without obstacles, can be achieved.
Disclosure of Invention
In view of the above, the present invention provides a data transmission method and a relay device, which can improve data transmission distance and data transmission efficiency.
In order to solve the technical problems, the invention adopts a technical scheme that: there is provided a data transmission method, the method comprising: each functional device in the same space establishes first communication connection with a first relay device respectively; each functional device in the same space performs data transmission with the first relay device through the first communication connection respectively so as to realize data transmission among the functional devices in the same space; the first relay devices in different spaces respectively establish second communication connection with the second relay devices; the first relay devices in different spaces respectively perform data transmission with the second relay devices through the second communication connection, so that data transmission between the first relay devices in different spaces is realized, and data transmission between the functional devices in different spaces is realized.
The method comprises the following steps of performing data transmission between the functional devices in the same space through a first communication connection and a first relay device respectively, wherein the steps of performing data transmission between the functional devices in the same space specifically comprise: the data sending end transmits data to the first relay device through the first communication connection, and then transmits the data to the data receiving end through the first communication connection via the first relay device, wherein the data sending end and the data receiving end are functional devices in the same space.
Wherein, first relay device in different spaces carries out data transmission through second communication connection and second relay device respectively to realize carrying out data transmission between the first relay device in different spaces, thereby realize carrying out data transmission's step specifically including between the functional device in different spaces: the data sending end transmits data to the first relay device through the first communication connection, the first relay device transmits the data to the second relay device through the second communication connection, then the data are transmitted to the first relay device in different spaces through the second communication connection via the second relay device, and the data are transmitted to the data receiving end through the first communication connection via the first relay device in different spaces, wherein the data sending end and the data receiving end are functional devices in different spaces.
The data transmission efficiency of the first communication connection is higher than that of the second communication connection, and the maximum data transmission distance of the first communication connection is smaller than that of the second communication connection.
The first communication connection is a 60G millimeter wave communication connection, and the second communication connection is a 2.4G/5G communication connection.
In order to solve the technical problem, the invention adopts another technical scheme that: the relay device comprises a controller, a first communication chip and a second communication chip, wherein the controller is respectively coupled with the first communication chip and the second communication chip, and is used for controlling the first communication chip to establish first communication connection with a function device, so that the function devices in the same space respectively carry out data transmission with the relay device through the first communication connection, and the data transmission among the function devices in the same space is realized; and the controller is used for controlling the second communication chip to establish second communication connection with the second relay device, so that the relay device performs data transmission with the second relay device through the second communication connection, and data transmission between the relay devices in different spaces is realized, and thus data transmission between the functional devices in different spaces is realized.
The relay device further comprises a buffer, the buffer is coupled with the controller, the buffer is used for storing the data received by the first communication chip and the second communication chip, and the buffer is used for storing the data required to be sent by the first communication chip and the second communication chip.
The functional device is provided with a third communication chip corresponding to the relay device, so that the functional device establishes a first communication connection with the first communication chip of the relay device through the third communication chip on the functional device.
And the second relay device is provided with a fourth communication chip corresponding to the relay device, so that the second relay device establishes second communication connection with the second communication chip of the relay device through the fourth communication chip on the second relay device.
The first communication chip and the second communication chip are respectively coupled with an antenna array.
The invention has the beneficial effects that: the method is different from the prior art that the relay station cannot simultaneously realize high-efficiency data transmission and long-distance data transmission. According to the invention, the functional devices in the same space are in first communication connection with the first relay device, and high-efficiency data transmission between the functional devices and the first relay device is realized through the first communication connection, so that high-efficiency data transmission between the functional devices in the same space is realized; and the first relay device and the second relay device in different spaces establish second communication connection, and long-distance data transmission between the first relay device and the second relay device in different spaces is realized through the second communication connection, so that long-distance data transmission between the functional devices in different spaces is realized, and the data transmission distance and the data transmission efficiency of the relay devices can be improved.
Drawings
Fig. 1 is a schematic flow chart of a first embodiment of a data transmission method according to the present invention;
FIG. 2 is a flow chart illustrating a second embodiment of a data transmission method according to the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of a data transmission system corresponding to the data transmission method of the present invention;
FIG. 4 is a flow chart of a third embodiment of the data transmission method of the present invention;
FIG. 5 is a schematic structural diagram of an embodiment of a relay device of the present invention;
fig. 6 is a schematic structural diagram of an antenna array according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a data transmission method according to a first embodiment of the present invention.
S101: each functional device in the same space establishes first communication connection with a first relay device respectively;
in this embodiment, the same space is defined as a space region separated by an obstacle (e.g., a reinforced concrete wall, etc.) capable of blocking wireless communication, and no obstacle capable of completely blocking wireless communication in the space exists in the space, and the space concept as described above is the same space as that described in this embodiment. In order to realize efficient data transmission among functional devices in the same space, it is necessary to establish a first communication connection with a first relay device via the functional device using the first relay device as a medium, so as to realize efficient data transmission among the functional devices in the same space.
S102: each functional device in the same space performs data transmission with the first relay device through the first communication connection respectively so as to realize data transmission among the functional devices in the same space;
in this embodiment, after each functional device in the same space establishes the first communication connection with the first relay device, each functional device in the same space performs data transmission with the first relay device through the first communication connection, so as to realize data transmission between each functional device in the same space. Each functional device transmits data to be transmitted to other functional devices to the first relay device through the first communication connection, and the first relay device is used as a medium to realize efficient data transmission among different functional devices in the same space.
S103: the first relay devices in different spaces respectively establish second communication connection with the second relay devices;
in this embodiment, the different spaces are defined as different space areas divided by an isolation structure at least including an obstacle (such as a reinforced concrete wall) capable of obstructing wireless communication. Different spaces respectively comprise different numbers of functional devices, if data transmission is to be realized between the functional devices in the different spaces, the functional devices in the different spaces need to be respectively in first communication connection with the first relay devices in the corresponding spaces, and the first relay devices in the different spaces are respectively in second communication connection with the second relay devices, so that long-distance data transmission between the functional devices in the different spaces is realized.
S104: the first relay devices in different spaces respectively carry out data transmission with the second relay devices through second communication connection so as to realize data transmission among the first relay devices in different spaces and further realize data transmission among the functional devices in different spaces;
in this embodiment, after the first relay devices in different spaces establish the second communication connection with the second relay device, long-distance data transmission between the first relay device and the second relay device can be achieved, so that data transmission between the first relay devices in different spaces can be achieved. And each first relay device transmits data with the functional device in the space where the first relay device is located, and transmits the data of the functional device in the space where the first relay device is located, which needs to be transmitted to the functional devices in different spaces, to the first relay device in the corresponding space through the second relay device, and further to the corresponding functional device, so that long-distance data transmission between the functional devices in different spaces is realized.
As can be seen from the above, in the present invention, the functional device and the first relay device in the same space establish the first communication connection, and the data transmission between the functional device and the first relay device with high transmission efficiency is realized through the first communication connection, so as to realize the high-efficiency data transmission between the functional devices in the same space; and the first relay device and the second relay device in different spaces establish second communication connection, and long-distance data transmission between the first relay device and the second relay device in different spaces is realized through the second communication connection, so that long-distance data transmission between the functional devices in different spaces is realized, and the data transmission distance and the data transmission efficiency of the relay devices can be improved.
Referring to fig. 2-3, fig. 2 is a schematic flow chart of a second embodiment of the data transmission method of the present invention, and fig. 3 is a schematic structural diagram of an embodiment of a data transmission system corresponding to the data transmission method of the present invention.
The data transmission method set forth in this embodiment may be applicable to sharing of high-quality video and audio files in the same space, for example, a smart phone puts a movie with a higher resolution of 1080p or 4K to a smart television; or file transmission operation with large data volume is carried out among different smart phones in the same space; the data transmission method set forth in this embodiment may also be applicable to long-distance data transmission in different spaces, for example, workers in different offices may transmit files across areas by using their own smartphones. Of course, the applicable environment of the data transmission method described in this embodiment includes, but is not limited to, the foregoing, and any application scenario in which it is required to implement short-distance efficient data transmission and long-distance data transmission may be the applicable environment of the data transmission method described in this embodiment, and is not limited herein. Moreover, the data transmitted by the data transmission method set forth in this embodiment is not limited to the macro-defined file (e.g., video and audio file, etc.), and may also be a data packet based on a communication protocol in the wireless communication process, etc.
It should be noted that the data transmission method described in this embodiment includes, but is not limited to, the following steps.
S201: each functional device in the same space establishes first communication connection with a first relay device respectively;
in this embodiment, the same space is defined as a space region separated by an obstacle (e.g., a reinforced concrete wall, etc.) capable of blocking wireless communication, and no obstacle capable of completely blocking wireless communication in the space exists in the space, and the space concept as described above is the same space as that described in this embodiment. In order to realize efficient data transmission between the functional devices 301 in the same space, it is necessary to establish a first communication connection 303 between each functional device 301 in the same space and the first relay device 302, to realize efficient data transmission between the functional device 301 and the first relay device 302 by using the first communication connection 303, and to further realize efficient data transmission between the functional devices 301 in the same space. The first relay device 302 and each functional device 301 in the corresponding space are all located in the space.
Alternatively, the first communication connection 303 may be a 60G millimeter wave communication connection or the like, which is a millimeter wave based on the 11ad/WiGig protocol, and has a higher data transmission efficiency, which may reach a transmission efficiency of an ideal peak value of 4.62Gbps, and a higher bandwidth of the millimeter wave is used to implement point-to-point large data burst communication of the functional devices 301 in the same space, thereby implementing efficient data transmission between the functional devices 301 in the same space.
Electromagnetic waves in the frequency domain of 30-300 GHz (the wavelength is 1-10 mm) are generally called millimeter waves, and are located in the overlapping wavelength range of microwave and far-infrared wave, so that the electromagnetic waves have the characteristics of two wave spectrums. When the millimeter waves are transmitted by utilizing an atmospheric window (when the millimeter waves and the submillimeter waves are transmitted in the atmosphere, certain frequency with minimum attenuation caused by resonance absorption of gas molecules is small), the attenuation is small, and the influence of natural light and a heat radiation source is small. And the millimeter wave has extremely wide bandwidth, generally, the frequency range of the millimeter wave is considered to be 26.5-300 GHz, and the bandwidth is up to 273.5 GHz. More than 10 times the total bandwidth from dc to microwave. Even if atmospheric absorption is considered, only four main windows can be used for propagation in the atmosphere, but the total bandwidth of the four windows can reach 135GHz, which is 5 times of the sum of the bandwidths of the bands below the microwave. This is clearly very attractive today when frequency resources are tight. Furthermore, the millimeter wave beam is narrow, and the millimeter wave beam is much narrower than the microwave beam under the same antenna size. For example, a 12cm antenna, has a beam width of 18 degrees at 9.4GHz and only 1.8 degrees at 94 GHz. Small objects that are closer together or the details of the objects that are viewed more clearly can be resolved. The propagation of millimeter waves is much less affected by the weather and can be considered to be all-weather. The millimeter wave components have lower requirements on the sizes of the millimeter wave components, so that the millimeter wave system is easier to miniaturize. The factors influencing the propagation characteristics of millimeter waves mainly include: the millimeter wave signals are attenuated, scattered, polarized and propagated by the combined action of molecular absorption (oxygen, water vapor, etc.), precipitation (including rain, fog, snow, hail, clouds, etc.), airborne matter (dust, smoke, etc.), and the environment (including vegetation, the ground, obstacles, etc.) that make up the components of the atmosphere. Therefore, although the 60G millimeter wave communication connection has high data transmission efficiency, the penetration is poor, and the communication connection cannot penetrate through obstacles such as walls and the like which obstruct wireless communication, and the transmission efficiency changes obviously with the increase of the data transmission distance, so that the 60G millimeter wave communication connection is not suitable for long-distance data transmission.
Alternatively, the function device 301 may be at least one of a display, a mobile terminal, a projector, a camera, and other intelligent devices. By realizing the association communication between the function device 301 and the first relay device 302 and the second relay device 304, the function device 301 is controlled to be turned on/off or the function device 301 is controlled to perform daily work, such as turning on/off a remote control display, controlling a projector to project a file shared by the mobile terminal, and the like. Of course, the function device 301 includes, but is not limited to, the above-mentioned smart device capable of performing the associated communication with the first relay device 302 and the second relay device 304, which can be the function device 301 described in this embodiment.
S202: the data sending end transmits data to the first relay device through the first communication connection;
in this embodiment, after the functional devices 301 in the same space establish the first communication connection 303 with the first relay device 302, the data transmission operation can be performed. The functional device 301 that transmits data among the functional devices 301 in the same space is a data transmitting end, and the functional device 301 that receives data is a data receiving end, and the data transmitting end transmits the data that needs to be transmitted to the data receiving end to the first relay device 302 through the first communication connection 303, and forwards the data to the data receiving end via the first relay device 302, thereby realizing data transmission between the data transmitting end and the data receiving end in the same space. Because the first communication connection 303 has higher data transmission efficiency, the data transmission efficiency between the data transmitting end and the first relay apparatus 302 is higher, and it can reach an ideal peak value of 4.62Gbps, so as to improve the transmission efficiency of the link in which the first relay apparatus 302 transmits data to the first relay apparatus 302 at the data transmitting end.
S203: the first relay device transmits data to a data receiving end through a first communication connection;
in this embodiment, after receiving the data transmitted from the data transmitting end, the first relay apparatus 302 also transmits the data to the data receiving end through the first communication connection 303, so as to complete the data transmission from the data transmitting end to the data receiving end. In summary, the data transmission efficiency between the data transmitting end and the first relay apparatus 302 is higher, and the data transmission efficiency between the data receiving end and the first relay apparatus 302 is also higher, so that the data transmission process between the data transmitting end and the data receiving end in the same space has higher data transmission efficiency, and high-efficiency data transmission between the functional apparatuses 301 in the same space is realized.
For example, the technical solution described in the present embodiment is described in detail by taking an example of a smart phone delivering a movie to a projector. The smartphone and the projector are located in the same space, and the smartphone and the projector establish a first communication connection 303 with the first relay device 302, respectively. The smart phone transmits a movie to be released to the first relay device 302 through the first communication connection 303 in a data packet mode, the first relay device 302 transmits the data packet to the projector through the first communication connection 303, and the projector opens and releases the content in the data packet after receiving the data packet, namely, the movie released from the smart phone to the projector.
Referring to fig. 4, fig. 4 is a flowchart illustrating a data transmission method according to a third embodiment of the present invention.
S301: each functional device in the same space establishes first communication connection with a first relay device respectively;
in this embodiment, the same space is defined as a space region separated by an obstacle (e.g., a reinforced concrete wall, etc.) capable of blocking wireless communication, and no obstacle capable of completely blocking wireless communication in the space exists in the space, and the space concept as described above is the same space as that described in this embodiment. In order to realize efficient data transmission between each functional device 301 and the first relay device 302 in the same space, it is necessary to establish a first communication connection 303 between each functional device 301 and the first relay device 302 in the same space, and to realize efficient data transmission between the functional device 301 and the first relay device 302 by using the first communication connection 303. The first relay device 302 and each functional device 301 in the corresponding space are all located in the space.
S302: the first relay devices in different spaces respectively establish second communication connection with the second relay devices;
in this embodiment, the different spaces are defined as different space areas divided by an isolation structure at least including an obstacle (such as a reinforced concrete wall) capable of obstructing wireless communication. Different spaces respectively include different numbers of functional devices 301, and in order to implement data transmission between the functional devices 301 in different spaces, it is necessary that the functional devices 301 in the different spaces respectively establish a first communication connection 303 with a first relay device 302 in a corresponding space, and the first relay device 302 in the different spaces respectively establish a second communication connection 305 with a second relay device 304, so as to implement space-spanning and long-distance data transmission between the functional devices 301 in the different spaces.
Optionally, the second communication connection 305 may be a 2.4G/5G communication connection or the like, the radio wave in the frequency band to which 2.4G/5G belongs is based on an 11n/ac communication protocol, and the radio wave in the frequency band to which 2.4G/5G belongs has good penetrability, and can penetrate through obstacles such as walls to realize data cross-space transmission; the optical fiber has good refraction and diffraction capabilities, can bypass obstacles, and realizes a larger maximum data transmission distance; the method has good NLOS (Non-Line Of Sight) characteristics, and achieves the data transmission efficiency reaching a plurality Of Gbps level under the transmission condition Of MIMO (Multiple-Input Multiple-Output). The second communication connection 305 is thus used to enable cross-space, long-range data transmission between the first relay device 302 and the second relay device 304. Ideally, the transmission efficiency of the first communication connection 303 is higher than that of the second communication connection 305, but the maximum data transmission distance of the first communication connection 303 is smaller than that of the second communication connection 305.
The 2.4G/5G communication connection is the combined communication connection of 2.4G and 5G dual-frequency communication. Both 2.4G communication and 5G communication are based on the 11n/ac communication protocol, and higher frequency means higher data transmission efficiency, but poorer data transmission distance and penetration, so that wireless communication with certain data transmission efficiency and data transmission distance is realized by integrating 2.4G communication and 5G communication. In an ideal state, the data transmission efficiency of the 2.4G/5G communication connection is not as good as that of the 60G millimeter wave communication connection, but the 2.4G/5G communication connection has good penetrability and refractive and diffractive capabilities, so that the 2.4G/5G communication connection has a larger maximum data transmission distance, and data transmission in different spaces and long distances can be realized.
Alternatively, the second relay apparatus 304 may be a router or the like, and the second relay apparatus 304 is a router based on 2.4G/5G communication, and may establish the second communication connection 305 with the first relay apparatus 302. Through the second communication connection 305 established between the first relay device 302 and the second relay device 304, data transmission across a space and a long distance between the first relay device 302 and the second relay device 304 in different spaces is realized.
A Router (Router) is a device that connects local area networks and wide area networks in the internet. The route is automatically selected and set according to the channel condition, and the signals are transmitted in the front and back order by the best path. A router is the hub of the internet. At present, routers are widely applied to various industries, and various products with different grades become the main force for realizing the internal connection of various backbone networks, interconnection among backbone networks and interconnection and intercommunication services of the backbone networks and the Internet. The main difference between routing and switches is that switches occur at layer two (the data link layer) of the OSI reference model, while routing occurs at layer three, the network layer. This difference determines that the routing and the switch need to use different control information during the process of moving information, so the way in which the routing and the switch implement their respective functions is different. Routers, also known as Gateway devices (gateways), are used to connect multiple logically separate networks, so-called logical networks, representing a single network or a sub-network. This may be accomplished by the routing function of the router when data is transferred from one subnet to another. Therefore, the router has the functions of judging the network address and selecting the IP path, can establish flexible connection in a multi-network interconnection environment, can connect various subnets by completely different data grouping and medium access methods, only receives the information of a source station or other routers, and belongs to interconnection equipment of a network layer.
It should be noted that the first communication connection 303 and the second communication connection 305 are not limited to the above-mentioned 60G millimeter wave communication connection and 2.4G/5G communication connection, and both the first communication connection 303 capable of achieving high data transmission efficiency in the same space and the second communication connection 305 capable of achieving different spatial long data transmission distances can be the first communication connection 303 and the second communication connection 305 described in this embodiment. The second relay device 304 is not limited to the router described above, and any relay device based on the second communication connection 305 and capable of achieving different spatial length data transmission distances may be the second relay device 304 described in this embodiment, and is not limited herein.
S303: the data sending end transmits data to the first relay device through a first communication connection, and the first relay device transmits the data to the second relay device through a second communication connection;
in this embodiment, functional apparatuses 301 in different spaces need to perform data transmission, the functional apparatus 301 performing the data transmission operation is the data transmitting side, and the functional apparatus 301 performing the data receiving operation is the data receiving side. The data transmitting end efficiently transmits data that the data transmitting end needs to transmit to the data receiving end in different spaces to the first relay device 302 through the first communication connection 303, the first relay device 302 transmits the data to the second relay device 304 through the second communication connection 305, and the data is forwarded to the data receiving end through the second relay device 304, so that the data is transmitted across the spaces and the long distance.
S304: transmitting data to a first relay device in a different space through a second communication connection via a second relay device, and transmitting data to a data receiving end through a first communication connection via the first relay device in the different space;
in this embodiment, after receiving the data transmitted from the first relay device 302 in the space where the data transmitting end is located, the second relay device 304 also performs data transmission across a space and a long distance through the second communication connection 305, transmits the data to the first relay device 302 in the space where the data receiving end is located, and efficiently transmits the data to the data receiving end through the first communication connection 303 via the first relay device 302, thereby completing the data transmission across a space and a long distance between the data transmitting end and the data receiving end.
For example, the technical solution described in the present embodiment is described in detail by taking the transmission document of the staff in different offices as an example. The smartphones of the workers in different offices establish a first communication connection 303 with the first relay device 302 respectively, and the first relay devices 302 in different offices establish a second communication connection 305 with the second relay devices 304 respectively, wherein the workers in an office transfer files to the first relay device 302 in the office where the workers are located, transfer the files to the second relay device 304 via the first relay device 302, transfer the files to the first relay device 302 in the target office via the second relay device 304, and then transfer the files to the smartphones of the target workers via the first relay device 302.
In summary, in the data transmission method provided by the present invention, the functional devices in the same space establish a first communication connection with the first relay device, the first communication connection has higher data transmission efficiency, and the data transmission with high transmission efficiency between the functional devices and the first relay device is realized through the first communication connection, so as to realize the high-efficiency data transmission between the functional devices in the same space; and the first relay device and the second relay device in different spaces establish second communication connection, the second communication connection has good penetrability and refractive and diffractive capabilities, and can bypass obstacles to realize cross-space and long-distance data transmission, so that the long-distance data transmission of the first relay device and the second relay device in different spaces is realized through the second communication connection, the long-distance data transmission between the functional devices in different spaces is realized, and the data transmission distance and the data transmission efficiency of the relay devices can be improved.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of a relay device in the present invention. It should be noted that the relay device described in this embodiment may be the first relay device described in the above embodiments.
In this embodiment, the relay device 500 includes a controller 501, a first communication chip 502 and a second communication chip 503, wherein the controller 501 is coupled to the first communication chip 502 and the second communication chip 503 respectively, that is, the controller 501 can be electrically connected to the first communication chip 502 and the second communication chip 503 through circuit traces respectively, or the controller 501 can be electrically connected to the first communication chip 502 and the second communication chip 503 through other connectors and connection media. The controller 501 is configured to control the first communication chip 502 to establish a first communication connection with the functional devices, so that each functional device in the same space performs data transmission with the relay device 500 through the first communication connection, so as to implement data transmission between each functional device in the same space; and the controller 501 is configured to control the second communication chip 503 to establish a second communication connection with a second relay device, so that the relay device 500 performs data transmission with the second relay device through the second communication connection, so as to implement data transmission between the relay devices 500 in different spaces, thereby implementing data transmission between functional devices in different spaces.
Further, the first communication chip 502 may be a 60G millimeter wave communication chip or the like, which is responsible for efficient data transmission between functional devices in the space where the relay device 500 is located. Since the first communication chip 502 performs wireless communication based on millimeter waves, supports the 11ad protocol and the WiGig protocol, has a sufficiently large bandwidth, and can achieve a theoretical data transmission efficiency of 4.62Gbps in an ideal state by a simple modulation method (for example, QPSK, etc.).
QPSK (Quadrature Phase Shift key) digital demodulation includes: analog-to-digital conversion, decimation or interpolation, matched filtering, clock and carrier recovery, etc. In an actual tuning demodulation circuit, incoherent carrier demodulation is adopted, and a local oscillator signal has frequency deviation and phase jitter with a carrier signal at a transmitting end, so that a demodulated analog I, Q baseband signal is a signal with carrier errors. Even if the analog baseband signal is sampled and judged by adopting a clock with accurate timing, the obtained digital signal is not the modulation signal of the original transmitting end, and the error accumulation causes the increase of the bit error rate after sampling judgment, so that the digital QPSK demodulation circuit needs to compensate the carrier error and reduce the influence caused by incoherent carrier demodulation. In addition, the sampling clock of the ADC is not extracted from the signal, when the sampling clock is not synchronized with the input data, the sampling will not be performed at the optimal sampling time, the statistical signal-to-noise ratio of the obtained sampling value is not the highest, and the bit error rate is high, so a clock synchronized with the input symbol rate needs to be recovered in the circuit to correct the sampling point error caused by fixed sampling, and accurate phase timing information can provide a correct clock for the channel error correction decoding after digital demodulation. The correction method is that a timing recovery and carrier recovery module generates timing and carrier errors through a certain algorithm, an interpolation or extractor extracts or interpolates and filters sampling values after A/D conversion under the control of timing and carrier error signals to obtain the value of the signal at the optimal sampling point, and the algorithms adopted by different chips are different, for example, the maximum likelihood algorithm of carrier phase and timing phase joint estimation by a data-aided (DA) method can be adopted.
The second communication chip 503 may be a 2.4G/5G communication chip or the like, and is responsible for data transmission across a long distance and space between the relay device 500 and the second relay device described in the above embodiments. The establishment of the second communication connection is achieved with either an 11n chip (QCA6174A) or an 11ac chip (WCN3990) supporting 2 x 2 MU-MIMO.
The controller 501 is an arithmetic circuit set having independent computing capability, such as a CPU (Central Processing Unit). The relay device 500 is mainly responsible for communication of a communication protocol between the first communication chip 502 and the second communication chip 503 and establishment of a data transmission channel, and specifically is responsible for realizing data transmission between the first communication chip 502 and the second communication chip 503, or data transmission between the first communication chip 502 and the second communication chip 503 and other communication devices. In consideration of the difference in data transmission efficiency between the first communication chip 502 and the second communication chip 503 in the relay device 500, the relay device 500 includes a buffer 504, the buffer 504 is coupled to the controller 501, the buffer 504 is used for storing data received by the first communication chip 502 and the second communication chip 503, and the buffer 504 is also used for storing data required to be transmitted by the first communication chip 502 and the second communication chip 503, that is, the controller 501 stores the data received by the first communication chip 502 and the second communication chip 503 in the buffer 504 and reads the data required to be transmitted by the first communication chip 502 and the second communication chip 503 from the buffer 504. In this way, the data received by the first communication chip 502 and the second communication chip 503 is stored in the buffer 504, and the data that the first communication chip 502 and the second communication chip 503 need to transmit is read from the buffer 504, so as to achieve the buffering effect of the buffer 504, and avoid that the second communication chip 503 cannot transmit the data transmitted by the first communication chip 502 to the target communication device in time to cause data retention in the data transmission process between the first communication chip 502 and the second communication chip 503 because the data transmission efficiency of the first communication chip 502 is higher than that of the second communication chip 503.
Further, an antenna array 505 may be coupled to each of the first communication chip 502 and the second communication chip 503, the antenna array 505 includes a plurality of antenna elements 601, polarization directions 602 of the antenna elements 601 on the same plane are perpendicular or parallel to each other, so that the antenna array 505 can output linear polarization radiation electric fields, circular polarization radiation electric fields, elliptical polarization radiation electric fields, and the like in different polarization directions, so that the relay device 500 performs well in terms of antenna gain, polarization directions for receiving radio signals, and the like, as shown in fig. 6.
Further, the functional device is provided with a third communication chip corresponding to the relay device 500, and the functional device establishes a first communication connection with the first communication chip 502 of the relay device 500 through the third communication chip thereon, so as to realize high-efficiency data transmission between the functional device and the relay device 500; the second relay device is provided with a fourth communication chip corresponding to the relay device 500, and the second relay device establishes a second communication connection with the second communication chip 503 of the relay device 500 through the fourth communication chip on the second relay device, so that space-spanning and long-distance data transmission between the second relay device and the relay device 500 is realized. Of course, the second relay device may also be the relay device 500 described in this embodiment, and the second communication chip 503 establishes the second communication connection with the relay device 500 in a different space, so that data transmission between the second relay device and the relay device 500 across a long distance and a space can also be achieved, which is not limited herein.
In summary, the relay device of the present invention establishes the first communication connection with the functional device through the first communication chip to achieve efficient data transmission between the functional device and the relay device, and establishes the second communication connection with the second relay device through the second communication chip to achieve data transmission between the relay devices in different spaces, thereby achieving data transmission between the functional devices in different spaces across a space and a long distance, and improving a data transmission distance and data transmission efficiency.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A method of data transmission, the method comprising:
each functional device in the same space establishes first communication connection with a first relay device respectively;
the same space is a space area separated by a barrier capable of blocking wireless communication, and no barrier capable of completely blocking wireless communication exists in the same space;
each functional device in the same space performs data transmission with the first relay device through the first communication connection respectively so as to realize data transmission among the functional devices in the same space;
the first relay devices in different spaces respectively establish second communication connection with the second relay devices;
the different spaces at least comprise different space areas which are divided by an isolation structure and used as obstacles capable of hindering wireless communication;
the first relay devices in different spaces respectively perform data transmission with the second relay device through the second communication connection, so that data transmission between the first relay devices in different spaces is realized, and data transmission between the functional devices in different spaces is realized;
the data transmission efficiency of the first communication connection is higher than that of the second communication connection, and the maximum data transmission distance of the first communication connection is smaller than that of the second communication connection.
2. The method according to claim 1, wherein the step of performing data transmission between the functional devices in the same space via the first communication connection and the first relay device respectively comprises:
and the data sending end transmits data to the first relay device through the first communication connection, and then transmits the data to the data receiving end through the first communication connection via the first relay device, wherein the data sending end and the data receiving end are functional devices in the same space.
3. The method according to claim 1, wherein the first relay devices in different spaces perform data transmission with the second relay devices through the second communication connections, respectively, so as to implement data transmission between the first relay devices in different spaces, and thus implement data transmission between the functional devices in different spaces specifically includes:
the data sending end transmits data to the first relay device through the first communication connection, the first relay device transmits the data to the second relay device through the second communication connection, then the data are transmitted to the first relay devices in different spaces through the second relay device through the second communication connection, and the data are transmitted to the data receiving end through the first communication connection through the first relay devices in the different spaces, wherein the data sending end and the data receiving end are functional devices in the different spaces.
4. The method of claim 1, wherein the first communication connection is a 60G millimeter wave communication connection and the second communication connection is a 2.4G/5G communication connection.
5. A relay device is characterized by comprising a controller, a first communication chip and a second communication chip, wherein the controller is respectively coupled with the first communication chip and the second communication chip, and is used for controlling the first communication chip to establish a first communication connection with a function device, so that each function device in the same space respectively carries out data transmission with the relay device through the first communication connection, and data transmission among the function devices in the same space is realized; the controller is used for controlling the second communication chip to establish a second communication connection with a second relay device, so that the relay device performs data transmission with the second relay device through the second communication connection, and data transmission between the relay devices in different spaces is realized, and data transmission between the functional devices in different spaces is realized;
the same space is a space area separated by a barrier capable of blocking wireless communication, and no barrier capable of completely blocking wireless communication exists in the same space;
the different spaces at least comprise different space areas which are divided by an isolation structure and used as obstacles capable of hindering wireless communication;
the data transmission efficiency of the first communication connection is higher than that of the second communication connection, and the maximum data transmission distance of the first communication connection is smaller than that of the second communication connection.
6. The relay device according to claim 5, further comprising a buffer coupled to the controller, wherein the buffer is configured to store data received by the first communication chip and the second communication chip, and the buffer is configured to store data required to be transmitted by the first communication chip and the second communication chip.
7. The relay device according to claim 5, wherein the functional device is provided with a third communication chip corresponding to the relay device, so that the functional device establishes the first communication connection with the first communication chip of the relay device through the third communication chip thereon.
8. The relay device according to claim 5, wherein the second relay device is provided with a fourth communication chip corresponding to the relay device, so that the second relay device establishes the second communication connection with the second communication chip of the relay device through the fourth communication chip thereon.
9. The relay device according to claim 5, wherein an antenna array is coupled to each of the first communication chip and the second communication chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810206424.1A CN108768488B (en) | 2018-03-13 | 2018-03-13 | Data transmission method and relay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810206424.1A CN108768488B (en) | 2018-03-13 | 2018-03-13 | Data transmission method and relay device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108768488A CN108768488A (en) | 2018-11-06 |
| CN108768488B true CN108768488B (en) | 2021-02-26 |
Family
ID=63980333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810206424.1A Active CN108768488B (en) | 2018-03-13 | 2018-03-13 | Data transmission method and relay device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108768488B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111200816A (en) * | 2020-01-21 | 2020-05-26 | 南通大学 | Wireless communication device and wireless communication method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420785A (en) * | 2006-12-11 | 2012-04-18 | 村田机械株式会社 | Relay server and relay communication system |
| WO2016132525A1 (en) * | 2015-02-20 | 2016-08-25 | 株式会社日立国際電気 | Wireless communication system and wireless communication method |
| JP2016170935A (en) * | 2015-03-12 | 2016-09-23 | セイコーエプソン株式会社 | Method of manufacturing electrooptic device |
-
2018
- 2018-03-13 CN CN201810206424.1A patent/CN108768488B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420785A (en) * | 2006-12-11 | 2012-04-18 | 村田机械株式会社 | Relay server and relay communication system |
| WO2016132525A1 (en) * | 2015-02-20 | 2016-08-25 | 株式会社日立国際電気 | Wireless communication system and wireless communication method |
| JP2016170935A (en) * | 2015-03-12 | 2016-09-23 | セイコーエプソン株式会社 | Method of manufacturing electrooptic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108768488A (en) | 2018-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11489573B2 (en) | Hybrid digital-analog mmwave repeater/relay with full duplex | |
| US9654241B2 (en) | Systems and methods for signal frequency division in wireless communication systems | |
| US8149758B2 (en) | Wireless communication system | |
| US8842788B2 (en) | Systems and methods for improved high capacity in wireless communication systems | |
| US20040054425A1 (en) | Method and apparatus for information conveyance and distribution | |
| Wells | Multi-gigabit microwave and millimeter-wave wireless communications | |
| US20050113045A1 (en) | Bridged ultra-wideband communication method and apparatus | |
| US11638318B2 (en) | Systems and methods for improving wireless mesh networks | |
| US20200037381A1 (en) | Systems and methods for improving wireless mesh networks | |
| WO2000074281A1 (en) | System and method for line of sight path communication | |
| CN108768488B (en) | Data transmission method and relay device | |
| US7336902B1 (en) | Integrated electro-optic hybrid communication system | |
| Shoji et al. | 70-GHz-band OFDM transceivers based on self-heterodyne scheme for millimeter-wave wireless personal area network | |
| US20220159478A1 (en) | Mesh relay module | |
| WO2022131968A1 (en) | Methods and system for providing high-speed communications on a high-speed railway | |
| Hayashi et al. | Millimeter-wave impulse radio technology | |
| EP0902556B1 (en) | Telecommunication system and method using radio link | |
| Sacchi | The new frontier of EHF for broadcast and multimedia satellite services | |
| WO2020191939A1 (en) | Communication gateway apparatus | |
| Series | Fixed service use and future trends | |
| Sato et al. | A 38 GHz-band 1 Gbps TDD FWA system using co-polarization dual antenna with high spatial isolation | |
| Dat et al. | Radio-over-free-space optical system for simultaneous transmission of 5G NR mmW and sub-THz RAT signals | |
| Gilmore et al. | The world's fastest wireless backhaul radio: A case study in industry-research collaboration | |
| JP2943889B2 (en) | Diversity transmission / reception method | |
| Kishida et al. | QAM UWB-Impulse Radio Using Optical Pulses Position Modulation for Optical Fiber-Wireless Links |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |