WO2022247685A1 - 信息传输方法、反射设备、基站、***、电子设备和介质 - Google Patents
信息传输方法、反射设备、基站、***、电子设备和介质 Download PDFInfo
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- WO2022247685A1 WO2022247685A1 PCT/CN2022/093250 CN2022093250W WO2022247685A1 WO 2022247685 A1 WO2022247685 A1 WO 2022247685A1 CN 2022093250 W CN2022093250 W CN 2022093250W WO 2022247685 A1 WO2022247685 A1 WO 2022247685A1
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- 238000004590 computer program Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 9
- 238000005562 fading Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
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- 239000011159 matrix material Substances 0.000 description 2
- 230000004584 weight gain Effects 0.000 description 2
- 235000019786 weight gain Nutrition 0.000 description 2
- 238000013500 data storage Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/20—Communication route or path selection, e.g. power-based or shortest path routing based on geographic position or location
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/42—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
Definitions
- This application is not limited to the field of wireless communication technology.
- the coverage area of communication network is getting larger and larger. People can obtain high-quality communication services in high-speed vehicles such as cars or trains.
- the line of sight (Line Of Sight, LOS) path is often used for the transmission of communication signals. Because of the lack of reflectors, it is difficult for the wireless channel in this system to support more than two streams. Transmission, resulting in the low traffic of a single terminal of the air-to-air wireless communication network, passengers on the plane cannot obtain high-quality communication services, resulting in a decline in user experience.
- the present application provides an information transmission method, a reflection device, a base station, a system, an electronic device and a medium.
- the present application provides an information transmission method, which is applied to reflection equipment.
- the method includes: obtaining communication information sent by a base station, and the communication information is carried by a communication signal; according to the reflection weight of the reflection equipment, by corresponding to the reflection weight The beam reflects the communication signal to the airborne terminal.
- the present application provides an information transmission method, which is applied to a base station.
- the method includes: sending a communication signal carrying communication information to a reflection device, so that the reflection device can use the reflection weight corresponding to the reflection weight according to the reflection weight of the reflection device.
- the beam reflects the communication signal to the on-board terminal.
- the present application provides a reflection device, including: a first acquisition module configured to obtain communication information sent by a base station, and the communication information is carried by a communication signal; a reflection module configured to use the reflection weight of the reflection device to pass The beam corresponding to the reflection weight reflects the communication signal to the airborne terminal.
- the present application provides a base station, including: a bearer module configured to use a communication signal to carry communication information; a sending module configured to send a communication signal to a reflection device, so that the reflection device can pass the reflection weight according to the reflection weight of the reflection device The beam corresponding to the reflection weight reflects the communication signal to the airborne terminal.
- the present application provides an information transmission system, which includes: a reflection device configured to implement the information transmission method of the first aspect; a base station configured to implement the information transmission method of the second aspect; an airborne terminal configured to obtain The communication information sent by the base station is used to generate response information based on the communication information, and the target transmission channel is used to transmit the response information to the reflection device, so that the reflection device transmits the response information to the base station.
- the present application provides an electronic device, including: one or more processors; a memory, on which one or more programs are stored, and when the one or more programs are executed by the one or more processors, the One or more processors implement any of the information transfer methods described herein.
- the present application provides a readable storage medium, where a computer program is stored in the readable storage medium, and when the computer program is executed by a processor, any one of the information transmission methods described herein is implemented.
- FIG. 1 shows a schematic diagram of the composition and structure of the ground-to-air wireless communication system of the present application.
- Fig. 2 shows a schematic flowchart of the information transmission method provided by the present application.
- Fig. 3 shows a schematic flowchart of the information transmission method provided by the present application.
- Fig. 4 shows a schematic flowchart of the information transmission method provided by the present application.
- Fig. 5 shows a block diagram of the reflection device provided by the present application.
- FIG. 6 shows a block diagram of a base station provided by the present application.
- Fig. 7 shows a block diagram of the composition of the information transmission system provided by the present application.
- Fig. 8 shows a schematic flow chart of the transmission of downlink information in the information transmission system provided by the present application.
- FIG. 9 shows a schematic flow chart of transmitting uplink information by using an omnidirectional antenna in the information transmission system provided by the present application.
- FIG. 10 shows a schematic flow chart of using directional antennas to transmit uplink information in the information transmission system provided by the present application.
- FIG. 11 shows a schematic flowchart of the transmission of downlink communication signals using a transmission channel based on a synchronization signal and a PBCH block in the information transmission system provided by the present application.
- FIG. 12 shows a schematic flow chart of transmitting downlink communication signals based on channel state information in the information transmission system provided by the present application.
- FIG. 13 shows a schematic flowchart of downlink information transmission based on active RIS in the information transmission system provided by the present application.
- FIG. 14 shows a schematic flow chart of transmitting uplink information based on active RIS in the information transmission system provided by the present application.
- FIG. 15 shows a schematic flow chart of transmitting downlink information based on passive RIS in the information transmission system provided by the present application.
- FIG. 16 shows a schematic flow chart of transmitting uplink information based on passive RIS in the information transmission system provided by the present application.
- Fig. 17 shows a structural diagram of an exemplary hardware architecture of a computing device capable of implementing the information transmission method and apparatus provided by the present application.
- FIG. 1 shows a schematic diagram of the composition and structure of the ground-to-air wireless communication system of the present application.
- an Air To Ground (ATG) wireless communication system includes the following devices: a core network device 101 , an Internet device 102 , a base station 104 and an airborne terminal 103 .
- ATG Air To Ground
- the base station 104 is a ground base station, and the airborne terminal 103 is a terminal installed on an aircraft.
- the base station 104 not only needs to communicate with the onboard terminal 103, but also needs to communicate with the intelligent terminals (such as smart phones, tablet computers, etc.) used by passengers on the plane.
- the base station 104 communicates with the intelligent terminals used by the passengers on the aircraft, it communicates with the intelligent terminals used by the passengers on the aircraft through the airborne mobile hotspot (Wi-Fi) equipment installed on the aircraft.
- Wi-Fi airborne mobile hotspot
- the onboard Wi-Fi equipment needs to be carried, and the communication pressure is too heavy.
- the movement speed of the aircraft can reach 800-1200Km/h, which belongs to the ultra-high-speed transportation means, and the passengers on the aircraft cannot obtain high-quality communication services.
- bandwidth resources are extremely precious resources, and it is impossible to use them all in a private network system such as the ATG wireless communication system; and the communication between the airborne terminal 103 and the base station 104 mostly uses a line of sight (Line Of Sight, LOS) path Signal transmission, wherein the LOS path indicates that there is a clear, unblocked communication channel between the airborne terminal 103 and the base station 104, and the airborne terminal 103 can directly receive the communication signal sent by the base station 104. Due to the particularity of the communication channel corresponding to the LOS path, the communication channel based on the LOS path cannot support multi-stream transmission. How to increase the number of single-user data streams and data rate in an environment where the LOS path is dominant such as air-to-air coverage is an urgent problem to be solved.
- LOS path Line Of Sight
- the first aspect of the present application provides an information transmission method.
- Fig. 2 shows a schematic flowchart of the information transmission method provided by the present application. This information transmission method can be applied to reflective devices. As shown in FIG. 2, the information transmission method of the present application may include the following steps S201 and S202.
- step S201 the communication information sent by the base station is acquired.
- the communication information is carried by a communication signal.
- the communication information includes any one or more of broadcast information, channel state information, downlink control information and downlink service information.
- the reflection device may be an active device or a passive device.
- the active reflective device can adjust the angle of the beam corresponding to the target transmission channel between the reflective device and the airborne terminal according to the control information sent by the base station, so that the target transmission channel can More accurate transmission of communication information to the airborne terminal.
- the passive reflective device In the case that the reflective device is determined to be a passive device, the passive reflective device cannot automatically adjust the reflection weight between it and the airborne terminal.
- the installation position of the passive reflection device is determined by preset network planning parameters, and the installation position includes installation angle information, installation height information, and the relationship between the passive reflection device and the base station Any one or several of the distance information between them.
- the passive reflection device is a device specially set up and configured to reflect the communication signal to the airborne terminal, rather than a general obstacle.
- the passive reflection device may use a beam (ie, a wide beam) with a beam width greater than or equal to a preset width threshold, so as to increase the probability that the airborne terminal receives communication information.
- the beamwidth includes: horizontal beamwidth and/or vertical beamwidth.
- the preset width threshold includes: Half Power beam width (HPBW).
- step S202 according to the reflection weight of the reflection device, the communication signal is reflected to the airborne terminal through the beam corresponding to the reflection weight.
- the reflection weight of the reflection device can be adjusted adaptively, so that the direction of the beam corresponding to the communication signal reflected to the airborne terminal is more accurate.
- the reflection weight can be the reflection angle of the reflection device, or the beam width corresponding to the reflection signal, etc.
- the reflection weight above is only an example, and can be set according to the specific implementation. Other unspecified reflection weights can also be Within the protection scope of the present application, details are not repeated here.
- the communication signal carrying the communication information is sent to the reflection device for the reflection device to reflect the communication signal to the airborne terminal through the beam corresponding to the reflection weight according to the reflection weight of the reflection device, so as to ensure that the transmission through the target
- the communication information transmitted through the channel can reach the airborne terminal smoothly, improving the channel quality of air coverage; on the basis of the traditional transmission channel between the base station and the airborne terminal, by adding reflection equipment, the distance between the base station and the airborne terminal is increased.
- the communication path increases the number of concurrent data streams sent by the base station to the airborne terminal, enabling the air-to-air coverage wireless communication system to support multi-stream transmission and increase the communication rate of the terminal.
- Fig. 3 shows a schematic flowchart of the information transmission method provided by the present application. This information transmission method can be applied to reflective devices. As shown in Figure 3, the information transmission method of the present application may include the following steps S301 to S304.
- step S301 the communication information sent by the base station is acquired.
- the communication information sent by the base station is acquired through the first transmission channel and/or the second transmission channel.
- the first transmission channel is a line-of-sight transmission channel between the reflection device and the base station
- the second transmission channel is a non-line-of-sight transmission channel between the reflection device and the base station.
- non-line-of-sight transmission channel is a transmission channel determined based on a non-line-of-sight (No Line Of Sight, NLOS) path.
- the line-of-sight transmission channel is a transmission channel determined based on the LOS path.
- reflection devices for example, a first reflection device and a second reflection device
- these reflection devices block the communication signal between the airborne terminal and the base station, while the communication information sent by the base station It can directly reach the second reflection device via the first transmission channel, or can reach the second reflection device via the second transmission channel (for example, the communication information sent by the base station is forwarded by the first reflection device, so that the second reflection device can obtain the communication information).
- the device enables the current device (that is, the second reflection device) to obtain the communication information sent by the base station through multiple transmission channels, which can increase the number of concurrent data streams sent by the base station to the current device and improve the communication quality of the current device.
- step S302 control information sent by the base station is acquired.
- control information includes angle adjustment information, and/or direction adjustment information of the beam corresponding to the target transmission channel.
- the reflective device includes a reconfigurable intelligent reflective surface (Reconfigable Intelligent Surface, RIS) device, and the RIS device can automatically adjust its corresponding to the target transmission channel between the airborne terminal according to the obtained control information.
- RIS reconfigurable Intelligent Surface
- step S303 the reflection weight of the beam corresponding to the target transmission channel is adjusted according to the control information.
- a target transmission channel is selected from the multiple transmission channels as the transmission channel for the communication information.
- the RIS device can increase or decrease the reflection weight of the beam corresponding to the target transmission channel between it and the airborne terminal according to the adjustment information of the angle; it can also adjust the information according to the direction of the beam corresponding to the target transmission channel to adjust The horizontal direction and/or vertical direction of the beam corresponding to the target transmission channel; the direction of the beam corresponding to the target transmission channel and the angle of the beam corresponding to the target transmission channel may also be adjusted simultaneously according to the control information. In this way, the beam corresponding to the target transmission channel can target the airborne terminal to ensure the accuracy of the target transmission channel.
- control information is only an example, and other undescribed control information is also within the protection scope of the present application, which can be set according to specific situations, and will not be repeated here.
- step S304 according to the reflection weight of the reflection device, the communication signal is reflected to the airborne terminal through the beam corresponding to the reflection weight.
- the traditional transmission channel between the base station and the airborne terminal is based on the transmission channel corresponding to the LOS path.
- adding a target transmission channel can make the base station and the airborne terminal.
- the transmission channels between the on-board terminals are more abundant, and the number of concurrent data streams sent by the base station to the on-board terminals is increased.
- the airborne terminal can receive the communication information sent by the base station through multiple different transmission channels, which improves the signal quality of the airborne terminal and ensures the integrity and accuracy of the communication information received by the airborne terminal.
- the communication information sent by the base station is obtained through the first transmission channel and/or the second transmission channel, that is, the communication information sent by the base station is obtained through multiple transmission channels, which can increase the concurrent data flow sent by the base station to the current device number, improve the communication quality of the current device; and obtain the control information through the first transmission channel (that is, the line-of-sight transmission channel between the current device and the base station), which can ensure the accuracy of the control information; use the control information to adjust the reflection weight , which can ensure that the communication information transmitted through the target transmission channel can reach the airborne terminal smoothly, and improve the channel quality of air coverage.
- the first transmission channel that is, the line-of-sight transmission channel between the current device and the base station
- the method before adjusting the reflection weight of the beam corresponding to the target transmission channel according to the control information, the method further includes: acquiring the position information of the reflection device and the position information of the airborne terminal; The location information and the location information of the reflection device determine the control information.
- the location information of the airborne terminal can be longitude and latitude information
- the location information of the current device can also be longitude and latitude information.
- the relative position of the airborne terminal and the current device can be accurately calculated through the longitude and latitude information, and then the control information can be determined according to the relative position. .
- determining the location information of the airborne terminal and the location information of the current device through the latitude and longitude information can improve the accuracy of the location information of each device, thereby improving the accuracy of the control information.
- the reflecting device includes a plurality of reflecting units to be used; determining the control information according to the position information of the airborne terminal and the position information of the reflecting device, including: according to the position information of the airborne terminal and the position of the reflecting device information, select a target reflection unit from multiple reflection units to be used, and determine the reflection weight corresponding to the target reflection unit; determine the control information according to the reflection weight corresponding to the target reflection unit.
- each reflective unit to be used may be a low-cost passive reflective element, or may be an active reflective element. Different reflection elements correspond to different reflection weights.
- the specific orientation for example, relative position information (for example, amplitude information) and/or relative angle information (for example, phase information) of the airborne terminal relative to the reflecting device can be determined. ), etc.
- control information is determined according to the reflection weights corresponding to the target reflection units (or the reflection weights of the target reflection units), including: according to the reflection weights corresponding to multiple target reflection units , sort multiple target reflection units to obtain the sorting result, for example, take the target reflection unit with the largest reflection weight gain as the final target reflection unit, and determine the control information according to the reflection weight corresponding to the final target reflection unit .
- Using a target reflection unit with the largest reflection weight gain as the final target reflection unit can improve the accuracy of control information.
- multiple reflection units can cooperate to realize the target transmission channel and realize the adjustment of the target transmission channel. Significantly improve the performance of wireless communication networks.
- the target transmission channel is a channel corresponding to a beam based on an enhanced or nulled signal.
- the null signal is to amplify the useful signal to the greatest extent, suppress the interference signal, and align the main lobe of the beam with the incident direction of the useful signal. Through the null signal, the lowest gain point in the beam pattern can be obtained. Ensure the accuracy of the beam, thereby improving the accuracy of the target transmission channel.
- the method further includes: corresponding to the response signal sent by the airborne terminal The beam is reflected to the base station.
- the response signal carries a response message
- the response message is information fed back by the airborne terminal for the communication information.
- the base station By reflecting the beam corresponding to the response signal sent by the airborne terminal (which carries the response signal) to the base station, the base station can accurately obtain the response information fed back by the airborne terminal, ensuring normal communication.
- the second aspect of the present application provides an information transmission method.
- Fig. 4 shows a schematic flowchart of the information transmission method provided by the present application.
- the information transmission method can be applied to a base station.
- the information transmission method of the present application may include the following steps S401 and S402.
- step S401 use a communication signal to carry communication information.
- control information is information configured to adjust the reflection weight of the beam corresponding to the target transmission channel
- the target transmission channel is a transmission channel between the reflection device and the airborne terminal.
- step S402 a communication signal is sent to the reflection device.
- the reflection device When it is determined that the reflection device receives the communication signal, the reflection device reflects the communication signal to the airborne terminal through the beam corresponding to the reflection weight according to the reflection weight of the reflection device, and the reflection weight is the beam corresponding to the target transmission channel
- the reflection weight, the target transmission channel is the transmission channel between the reflection device and the airborne terminal.
- the method before sending the communication signal to the reflection device, the method further includes: acquiring control information, the control information is configured to adjust the reflection weight of the beam corresponding to the target transmission channel, and the target transmission channel is the reflection device Transmission channel with the onboard terminal; transmits control information to the reflection device.
- the reflection device will adjust the reflection weight of the beam corresponding to the target transmission channel between it and the airborne terminal according to the control information, so as to ensure that the angle of the beam corresponding to the target transmission channel can meet the transmission requirements (for example, the target transmission channel corresponds to The angle of the beam can accurately correspond to the airborne terminal, so that the airborne terminal can accurately receive the communication information sent by the reflection device), and improve the transmission accuracy of communication information.
- the reflection device adjusts the reflection weight of the beam corresponding to the target transmission channel according to the control information, so that the reflection device uses the target transmission channel quickly and accurately.
- the communication information is transmitted to the airborne terminal to ensure that the airborne terminal can accurately receive the communication information.
- Add reflection equipment between the base station and the airborne terminal By adding the reflection equipment, the communication path between the base station and the airborne terminal is increased, thereby increasing the number of concurrent data streams sent by the base station to the airborne terminal, so that the air coverage
- the wireless communication system can support multi-stream transmission and improve the communication rate of the terminal.
- acquiring the control information includes: acquiring location information of the reflective device and location information of the airborne terminal; and determining the control information according to the location information of the airborne terminal and the location information of the reflective device.
- the location information of the airborne terminal and the location information of the reflecting device can be represented by longitude and latitude information, which can accurately characterize the relative position between the airborne terminal and the reflecting device, and then determine the control information according to the relative position to ensure that the reflecting device can According to the control information, the target transmission channel between it and the airborne terminal is accurately adjusted to improve the transmission accuracy of communication information.
- the method before transmitting the control information to the reflection device, the method further includes: acquiring the location information of the base station; and determining the beam corresponding to the first transmission channel according to the location information of the base station and the location information of the reflection device Angle.
- the first transmission channel is a line-of-sight transmission channel between the reflection device and the base station. Through the first transmission channel, it can be ensured that the reflective device can obtain the control information sent by the base station more quickly and accurately, and the accuracy of the control information can be ensured.
- the line-of-sight transmission channel is a transmission channel determined based on the LOS path.
- the base station can accurately send communication information or control information to the reflective device through the first transmission channel, so that the reflective device can adjust the angle of the beam corresponding to the target transmission channel between the reflective device and the airborne terminal according to the control information, and realize the control of the base station. Accurate control of reflective devices.
- the first transmission channel includes: a transmission channel based on channel state information, and/or a transmission channel based on a synchronization signal and a PBCH block.
- the synchronization signal and PBCH block include: primary synchronization signal (Primary Synchronization Signals, PSS), secondary synchronization signal (Secondary Synchronization Signals, SSS) and broadcast physical channel (Physical Broadcast CHannel, PBCH) .
- PSS Primary Synchronization Signals
- SSS Secondary Synchronization Signals
- broadcast physical channel Physical Broadcast CHannel
- the channel state information is used to characterize the channel properties of the communication link.
- the channel state information includes: the attenuation factor of the communication signal on each transmission channel.
- the base station uses the reference signal (Channel State Information-Reference Signal, CSI-RS) port of the channel state information and the reflective device to which the transmit beam points, so that the terminal can obtain more accurate channel estimation.
- CSI-RS Channel State Information-Reference Signal
- the target transmission channel includes: a channel determined based on the first beam of the airborne terminal, or, a channel determined based on the second beam of the airborne terminal, the beam width of the first beam is smaller than that of the second beam beam width.
- the beam width includes: horizontal beam width and/or vertical beam width.
- the preset width thresholds include: half power width.
- using the target transmission channel to transmit the communication information between the airborne terminal and the base station can increase The number of concurrent data streams between the airborne terminal and the base station enables the air-to-air coverage wireless communication system to support multi-stream transmission and improve the communication rate of the terminal.
- the method further includes: in the case of determining that the target transmission channel is a channel determined based on the second beam of the airborne terminal, adopting the principle of maximum ratio combining
- the information transmitted by the target transmission channel is processed to obtain response information, wherein the response information is the response information fed back by the airborne terminal forwarded by the reflection device for the communication information.
- the principle of maximum ratio combination is that the base station determines the weights corresponding to each received signal according to the strength of the received signal, and performs weighted combination processing on each received signal to make the processed received signal clearer and ensure The received signal can get more complete response information.
- the second beam may be a beam corresponding to an omnidirectional antenna.
- the transmitted energy of the omnidirectional antenna not only acts on the LOS path between the airborne terminal and the base station, but also acts on the LOS path between the airborne terminal and other reflection devices. NLOS trail.
- the base station can process the information transmitted by the target transmission channel according to the magnitude of the reflected energy corresponding to each reflecting device, using the principle of maximum ratio combination, so that the obtained response information sent by the airborne terminal is more complete.
- a third aspect of the present application provides a reflection device.
- Fig. 5 shows a block diagram of the reflection device provided by the present application.
- the reflection device includes the following modules: a first acquisition module 501 configured to acquire communication information sent by a base station, and the communication information is carried by a communication signal; a reflection module 502 configured to pass The beam corresponding to the reflection weight reflects the communication signal to the airborne terminal.
- the control information and communication information sent by the base station are acquired through the first acquisition module, and the adjustment module is used to adjust the angle of the beam corresponding to the target transmission channel according to the control information, so as to ensure that the communication information transmitted through the target transmission channel can reach the machine smoothly.
- Carrying terminals to improve the channel quality of air-to-air coverage Use the first transmission module to transmit communication information to the airborne terminal through the target transmission channel.
- FIG. 6 shows a block diagram of a base station provided by the present application.
- the base station includes the following modules: a bearer module 601 configured to use communication signals to carry communication information; a sending module 602 configured to send communication signals to reflection devices for the reflection devices to pass according to the reflection weights of the reflection devices The beam corresponding to the reflection weight reflects the communication signal to the airborne terminal.
- the control information and communication information used to adjust the angle of the beam corresponding to the target transmission channel are obtained through the second acquisition module, and then the second transmission module is used to transmit the control information and communication information to the reflection device, so that the reflection device
- the transmission channel between the airborne terminal and the airborne terminal can be more accurate, ensuring that the communication information transmitted through the target transmission channel can reach the airborne terminal smoothly, and improving the channel quality of air coverage; on the basis of the transmission channel between the traditional base station and the airborne terminal
- increasing the target transmission channel increases the number of concurrent data streams sent by the base station to the airborne terminal, enabling the wireless communication system with air coverage to support multi-stream transmission and improving the communication rate of the terminal.
- a fifth aspect of the present application provides an information transmission system.
- Fig. 7 shows a block diagram of the composition of the information transmission system provided by the present application.
- the information transmission system includes the following equipment: reflection device 710, configured to implement the information transmission method of the first aspect; base station 720, configured to implement the information transmission method of the second aspect; airborne terminal 730, configured to obtain the communication sent by the base station 720 information, generate response information according to the communication information, and use the target transmission channel to transmit the response information to the reflection device 710, so that the reflection device 710 transmits the response information to the base station 720.
- the reflective device may be an active device configured to implement the information transmission method of the first aspect; it may also be a passive device that forwards the received communication information sent by the base station 720 to the airborne terminal 730 through different reflection weights .
- the airborne terminal 730 may be an aircraft, an unmanned aerial vehicle or other terminals supported by the air coverage system.
- Base station 720 may be a terrestrial base station.
- the base station 720 sends control information to the reflection device 710 through the port corresponding to the CSI-RS, so that the reflection device 710 adjusts the angle of the beam directed to the reflection device 710 according to the control information, so that the reflection device 710 can accurately transmit the communication information sent by the base station. Forward to the airborne terminal 730. It is ensured that the airborne terminal 730 obtains information such as more accurate channel estimation, channel quality indicator (Channel Quality Indicator, CQI), rank indicator (Rank Indication, RI), and precoding matrix indicator (Precoding Matrix Indicator, PMI).
- CQI Channel Quality Indicator
- RI rank indicator
- PMI precoding Matrix Indicator
- the CQI is used to measure and reflect the channel quality of the Physical Downlink Shared Channel (PDSCH).
- PDSCH Physical Downlink Shared Channel
- 0-15 is used to represent the channel quality of PDSCH. 0 means the worst channel quality, 15 means the best channel quality.
- the base station 720 can transmit more data to the airborne terminal 730; otherwise, if the channel quality of the PDSCH is poor, the base station 720 can only transmit less data to the airborne terminal 730.
- RI is used to indicate the effective number of data layers of PDSCH. Through the RI reported by the airborne terminal 730, the base station 720 can know the number of code words (Code Word, CW) supported by the airborne terminal 730.
- the PMI is used to indicate the index of the codebook set. Through the PMI reported by the airborne terminal 730, it can be determined whether the communication signal transmitted by the PDSCH is an optimal signal.
- control information includes position information of the airborne terminal 730 and/or angle adjustment information of the beam corresponding to the first transmission channel, which is a non-line-of-sight transmission channel between the reflection device 710 and the base station 730 .
- Communication information includes any one or more of broadcast information, channel state information, downlink control information, and downlink service information.
- the downlink control information is configuration information corresponding to downlink service information, and is used to configure and adjust different service data.
- the reflection device 710 after the reflection device 710 obtains the location information of the airborne terminal 730, it can determine the distance between the reflection device 710 and the airborne terminal 730 through the location information of the reflection device 710 itself and the location information of the airborne terminal 730. The angle of the beam corresponding to the target transmission channel, and then adjust the angle of the beam corresponding to the target transmission channel according to the angle, so that the airborne terminal 730 can accurately receive the communication information forwarded by the reflection device 710, and improve the air coverage Signal quality.
- the uplink channel in the information transmission system (the channel that the airborne terminal 730 transmits to the base station 720 through different transmission channels)
- different types of transmission antennas used by the airborne terminal 730 can be used to correspond to different transmission channels. channel.
- the target transmission channel is added, and the The number of concurrent data streams sent by the base station to the airborne terminal is increased, so that the wireless communication system with air coverage can support multi-stream transmission and improve the communication rate of the terminal.
- Fig. 8 shows a schematic flowchart of downlink information transmission in the information transmission system provided by the present application.
- the information transmission system may include a plurality of reflection devices, for example, the information transmission system includes: a first reflection device 711, a second reflection device 712, a third reflection device 713, ..., an Nth reflection device 71N, Wherein, N is an integer greater than or equal to 1.
- the downlink transmission channel in the information transmission system is a transmission channel for transmitting the communication information sent by the base station 720 to the airborne terminal 730 .
- the downlink transmission channel includes the following channels: 0) the 0th downlink channel: base station 720 ⁇ airborne terminal 730; 1) the first downlink channel: base station 720 ⁇ first reflection device 711 ⁇ airborne terminal 730; 2) the second downlink channel : base station 720 ⁇ second reflecting device 712 ⁇ airborne terminal 730; 3) the third downlink channel: base station 720 ⁇ third reflecting device 713 ⁇ airborne terminal 730; ...; N) Nth downlink channel: base station 720 ⁇ the first N reflecting device 71N ⁇ airborne terminal 730 .
- the N reflection devices may include both active devices and passive devices.
- the passive device means that the reflection device cannot automatically adjust the reflection weight between itself and the airborne terminal 730 .
- the installation position of the passive reflection device is a position determined by preset network planning parameters, and the installation position includes installation angle information, installation height information, and the distance between the passive reflection device and the base station 720 Any one or several types of distance information.
- the passive reflection device may use a beam with a beam width greater than or equal to a preset width threshold (ie, a wide beam) to increase the probability that the airborne terminal 730 receives communication information.
- the beam width includes: a horizontal beam width and a vertical beam width.
- the horizontal beam width indicates the angle between two directions in which the radiation power on both sides of the maximum radiation direction drops by 3dB in the horizontal direction.
- the vertical beam width indicates the angle between two directions in which the radiation power on both sides of the maximum radiation direction drops by 3dB in the vertical direction.
- the preset width threshold includes half power width.
- the active device means that the reflection device can automatically adjust the reflection weight of the beam corresponding to the target transmission channel between it and the airborne terminal 730 according to the control information sent by the base station 720, so that the communication information forwarded by the reflection device can reach the airborne terminal 730 smoothly.
- the terminal 730 improves the signal quality of the airborne terminal 730 .
- the base station 720 will generate a beam with a fixed emission angle, so that the angle of the beam corresponds to the reflection devices around it, so as to ensure that the control information and communication information sent by the base station 720 can be accurately transmitted to each reflection device .
- the downlink information forwarded by each reflection device to the airborne terminal 730 is only communication information, excluding the control information sent by the base station 720 to each reflection device.
- the airborne terminal 730 receives the communication information sent by the base station 720 through different downlink transmission channels.
- the base station 720 can obtain the position information of the airborne terminal 730 and the position information of each reflection device through the Global Positioning System (Global Positioning System, GPS), and then determine each reflection device according to the above position information. Angles corresponding to beams of the target transmission channel between the airborne terminals 730 .
- Global Positioning System Global Positioning System, GPS
- multiple reflection units to be used are included; the reflection device can select a target reflection unit from the plurality of reflection units to be used according to the position information of the airborne terminal 730 and the position information of the reflection device itself, and Determine the reflection weight corresponding to the target reflection unit; determine the beam correspondence of the target transmission channel between the reflection device and the airborne terminal 730 according to the reflection weight corresponding to the target reflection unit (or the reflection weight of the target reflection unit) Angle.
- the antenna used by the airborne terminal 730 in the information transmission system may be an omnidirectional antenna or a directional antenna, but the direction of the directional antenna is adjustable.
- FIG. 9 shows a schematic flow chart of transmitting uplink information by using an omnidirectional antenna in the information transmission system provided by the present application.
- FIG. 10 shows a schematic flow chart of using directional antennas to transmit uplink information in the information transmission system provided by the present application.
- the uplink transmission channel in the information transmission system is a transmission channel for transmitting the communication information sent by the airborne terminal 730 to the base station 720 .
- the uplink transmission channel includes the following channels: 0) 0th downlink channel: airborne terminal 730 ⁇ base station 720; 1) first downlink channel: airborne terminal 730 ⁇ first reflection device 711 ⁇ base station 720; 2) second downlink channel : airborne terminal 730 ⁇ second reflection device 712 ⁇ base station 720; 3) the third downlink channel: airborne terminal 730 ⁇ third reflection device 713 ⁇ base station 720; ...; N) Nth downlink channel: airborne terminal 730 ⁇ Nth reflection device 71N ⁇ base station 720 .
- the antenna used by the airborne terminal 730 is an omnidirectional antenna, and the beam corresponding to the omnidirectional antenna is a wide beam (that is, the beam width of the beam corresponding to the omnidirectional antenna is greater than or equal to the preset width threshold) .
- the transmission energy of the omnidirectional antenna not only acts on the LOS path between the airborne terminal 730 and the base station 720, but also acts on the NLOS path between the airborne terminal 730 and other reflecting devices (that is, the airborne terminal 730 and the base station There are multiple reflection devices between 720, which block the communication signal between the airborne terminal 730 and the base station 720).
- the base station 720 may process the received signal according to the magnitude of the reflected energy corresponding to each reflecting device, using the principle of maximum ratio combination, so as to obtain more complete communication information sent by the airborne terminal 730 .
- the principle of maximum ratio combination is to determine the corresponding weight of each received signal according to the strength of the received signal, and perform weighted combination processing on each received signal to make the processed received signal clearer and ensure that the processed received signal is passed. Receive the signal to get more complete communication information.
- the antenna used by the airborne terminal 730 is a directional antenna whose direction can be adjusted, and the beam corresponding to the directional antenna is a narrow beam (that is, the beam width of the beam corresponding to the directional antenna is smaller than the preset width threshold) .
- the main transmission energy of the directional antenna acts on the LOS path between the airborne terminal 730 and the base station 720 , so that the uplink communication information sent by the airborne terminal 730 can reach the base station 720 more accurately.
- the number of concurrent data streams between the airborne terminal 730 and the base station 720 is increased, and the communication rate of the terminal is improved.
- the base station 720 in the information transmission system may use a transmission channel based on a synchronization signal and a PBCH block to transmit downlink communication signals.
- FIG. 11 shows a schematic flowchart of the transmission of downlink communication signals using a transmission channel based on a synchronization signal and a PBCH block in the information transmission system provided by the present application.
- the information transmission system is a 5G-based time division duplex (Time Division Dual, TDD) air-to-air coverage wireless communication system.
- the base station 720 corresponds to two reflective devices (ie, the first reflective device 711 and the second reflective device 712 ), and each reflective device is an active device.
- the beams sent by the base station 720 include: a first SSB modulated beam 741 , a second SSB modulated beam 742 , a third SSB modulated beam 743 and a fourth SSB modulated beam 744 .
- the third SSB modulated beam 743 corresponds to the first reflecting device 711
- the fourth SSB modulated beam 744 corresponds to the second reflecting device 712 .
- the base station 720 in the information transmission system may transmit downlink communication signals based on channel state information.
- FIG. 12 shows a schematic flow chart of transmitting downlink communication signals based on channel state information in the information transmission system provided by the present application.
- the channel state information is used to characterize the channel properties of the communication link.
- the channel state information includes: the attenuation factor of the communication signal on each transmission channel. For example, any one or more of signal scattering (Scattering) information, environmental fading (fading, multipath fading or shadowing fading) information, and distance attenuation (power decay of distance) information.
- Scattering signal scattering
- environmental fading fading, multipath fading or shadowing fading
- distance attenuation power decay of distance
- base station 720 may transmit multiple beams. As shown in FIG. 12 , the beams sent by the base station 720 include: a first channel state beam 751 , a second channel state beam 752 , a third channel state beam 753 and a fourth channel state beam 754 .
- the channel state information transmitted by each channel state beam can ensure the reliability of communication.
- the base station 720 directs different transmit beams to different reflective devices based on ports corresponding to Channel State Information-Reference Signal (CSI-RS). For example, make the third channel state beam 753 correspond to the first reflection device 711, or make the fourth channel state beam 754 correspond to the second reflection device 712, etc., so that the terminal can obtain more accurate channel estimation.
- CSI-RS Channel State Information-Reference Signal
- FIG. 13 shows a schematic flowchart of downlink information transmission based on active RIS in the information transmission system provided by the present application.
- the base station 720 performs downlink communication with the first airborne terminal 731 and the second airborne terminal 732 in the following manner.
- the base station 720 sends a first control signal 7631 to the first reflection device 711, so that the first reflection device 711 adjusts the emission angle between itself and the first airborne terminal 731 according to the first control signal 7631.
- the base station 720 sends a second control signal 7632 to the second reflection device 712, so that the second reflection device 712 adjusts the emission angle between itself and the second airborne terminal 732 according to the second control signal 7632.
- the base station 720 may transmit the first control signal 7631 and/or the second control signal 7632 through a communication channel in a WIFI or 4G communication network.
- the base station 720 adopts the TDD communication method, uses the time division multiplexing beam 7611 at the first time at the first time to send the first downlink communication information; at the second time uses the time division multiplexing beam 7621 at the second time to send the second downlink communication information.
- the first reflection device 711 When the first reflection device 711 receives the first downlink communication information, the first reflection device 711 forwards the first downlink communication information to the first airborne terminal 731 using the time division multiplexing forwarding beam 76111 at the first moment; When the first reflection device 711 receives the second downlink communication information, the first reflection device 711 forwards the second downlink communication information to the first airborne terminal 731 by using the time division multiplexing forwarding beam 76211 at the second moment.
- the second reflection device 712 When the second reflection device 712 receives the first downlink communication information, the second reflection device 712 forwards the first downlink communication information to the second airborne terminal 732 using the time division multiplexing forwarding beam 76112 at the first moment; When the second reflection device 712 receives the second downlink communication information, the second reflection device 712 forwards the second downlink communication information to the second airborne terminal 732 by using the time division multiplexing forwarding beam 76212 at the second moment.
- the first reflection device and the second reflection device forward different downlink communication information sent by the base station to the airborne terminal at different times, so that the airborne terminal can receive the downlink communication information sent by the base station through multiple transmission channels, which can increase the number of transmissions sent by the base station.
- the number of concurrent data streams to the airborne terminal enables the information transmission system to support multi-stream transmission and improve the communication rate of the terminal.
- FIG. 14 shows a schematic flow chart of transmitting uplink information based on active RIS in the information transmission system provided by the present application.
- the third uplink feedback beam 773 used by the first airborne terminal 731 and the fourth uplink feedback beam 774 used by the second airborne terminal 732 may be based on a directional antenna (for example, a directionally adjustable directional Antennas) may also be beams corresponding to non-directional antennas (for example, omnidirectional antennas).
- a directional antenna for example, a directionally adjustable directional Antennas
- non-directional antennas for example, omnidirectional antennas
- the beam width of the beam corresponding to the directional antenna with adjustable direction is different from the beam width of the beam corresponding to the omnidirectional antenna.
- the downlink transmission channel of a reflective device is determined based on the beam corresponding to the direction-adjustable directional antenna, its uplink transmission channel also needs to be determined based on the beam corresponding to the direction-adjustable directional antenna.
- the downlink transmission channel of a reflection device is determined based on the beam corresponding to the omnidirectional antenna, its uplink transmission channel also needs to be determined based on the beam corresponding to the omnidirectional antenna, so that the channel gain of the uplink transmission channel ( For example, the fading condition of the uplink channel) is improved.
- the first airborne terminal 731 and the second airborne terminal 732 perform uplink communication with the base station 720 in the following manner.
- the first airborne terminal 731 can send the first uplink feedback information to the base station 720 through the third uplink feedback beam 773, or can use the first uplink feedback beam 771 through the first reflection device 711 to send the received first uplink feedback information to the base station 720.
- the first uplink feedback information sent in 731 is forwarded to the base station 720.
- the base station 720 obtains the first uplink feedback information sent by the first airborne terminal 731 through multiple different transmission channels, which can improve the quality of the received signal and ensure the integrity and accuracy of the received first uplink feedback information.
- the second airborne terminal 732 can send the second uplink feedback information to the base station 720 through the fourth uplink feedback beam 774, or can use the second uplink feedback beam 772 through the second reflection device 712 to transmit the second uplink feedback information received by it to the base station 720.
- the second uplink feedback information sent by the airborne terminal 732 is forwarded to the base station 720 .
- the base station 720 obtains the second uplink feedback information sent by the second airborne terminal 732 through multiple different transmission channels, which can improve the quality of the received signal and ensure the integrity and accuracy of the received second uplink feedback information.
- the information transmission system is a 4G-based frequency division duplex (Frequency Division Duplexing, FDD) air-to-air coverage wireless communication system.
- the information transmission system includes: three passive reflection devices (namely, the third reflection device 713, the fourth reflection device 714 and the fifth reflection device 715), the base station 720, the first airborne terminal 731 and the second airborne Terminal 732.
- FIG. 15 shows a schematic flow chart of transmitting downlink information based on passive RIS in the information transmission system provided by the present application.
- the base station 720 corresponds to the third reflective device 713, the fourth reflective device 714 and the fifth reflective device 715 respectively, and each passive reflective device adopts a beam whose beam width is greater than or equal to a preset width threshold (ie, wide beam).
- a preset width threshold ie, wide beam
- the base station 720 uses the first downlink sending beam 781 to broadcast the downlink information, so that the first airborne terminal 731 and the second airborne terminal 732 can acquire the downlink information.
- the downlink information includes synchronization information and/or downlink broadcast information
- the first downlink transmission beam is a beam corresponding to a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).
- PDSCH Physical Downlink Shared Channel
- the third reflection device 713 uses the second downlink transmission beam 782 to forward the downlink information to the first airborne terminal 731; after determining that the fourth reflection device 714 In the case of receiving the downlink information sent by the base station 720, the fourth reflection device 714 uses the third downlink transmission beam 783 to forward the downlink information to the second airborne terminal 732; In the case of information, the fifth reflection device 715 forwards the downlink information to the second airborne terminal 732 by using the fourth downlink sending beam 784 .
- the number of data streams received by the airborne terminal can be increased, so that the 4G-based FDD air-to-air coverage wireless communication system can support multi-stream transmission and improve the communication rate of the terminal.
- FIG. 16 shows a schematic flow chart of transmitting uplink information based on passive RIS in the information transmission system provided by the present application.
- each airborne terminal may use a directional antenna with adjustable direction, and each reflection device may use a beam whose beam width is greater than or equal to a preset width threshold (ie, a wide beam) for each passive reflection device.
- a preset width threshold ie, a wide beam
- the first airborne terminal 731 uses the second uplink sending beam 792 to send the first uplink information to the base station 720
- the second airborne terminal 732 uses the fourth uplink sending beam 794 to send the second uplink information to the base station 720.
- the third reflection device 713 uses the first uplink transmission beam 791 to forward the first uplink information to the base station 720; therefore, the base station
- the first uplink information received by 720 is through two different transmission channels (that is, the LOS path transmission channel between the first airborne terminal 731 and the base station 720, and the first airborne terminal 731, the third reflecting device 713 and the
- the information obtained from the NLOS (transmission channel) formed by the base station 720 increases the number of data streams between the base station 720 and the first airborne terminal 731.
- the fourth reflection device 714 uses the third uplink transmission beam 793 to forward the second uplink information to the base station 720;
- the fifth reflection device 715 uses the fifth uplink sending beam 795 to forward the second uplink information to the base station 720 .
- the second uplink information received by the base station 720 is through three different transmission channels (that is, the LOS path transmission channel between the second airborne terminal 732 and the base station 720, and the second airborne terminal 732, the fourth reflected The NLOS transmission channel formed by the device 714 and the base station 720, and the NLOS transmission channel formed by the second airborne terminal 732, the fifth reflecting device 715, and the base station 720)
- the information obtained by adding the base station 720 and the second airborne terminal 732 The number of data streams in between improves the channel gain of the uplink transmission channel of the base station 720 (for example, the fading condition of the uplink channel).
- Fig. 17 shows a structural diagram of an exemplary hardware architecture of a computing device capable of implementing the information transmission method and apparatus provided by the present application.
- a computing device 1700 includes an input device 1701 , an input interface 1702 , a central processing unit 1703 , a memory 1704 , an output interface 1705 , and an output device 1706 .
- the input interface 1702, the central processing unit 1703, the memory 1704, and the output interface 1705 are connected to each other through the bus 1707, and the input device 1701 and the output device 1706 are respectively connected to the bus 1707 through the input interface 1702 and the output interface 1705, and then connected to the computing device 1700 other component connections.
- the input device 1701 receives input information from the outside, and transmits the input information to the central processing unit 1703 through the input interface 1702; the central processing unit 1703 processes the input information based on computer-executable instructions stored in the memory 1704 to generate Output information, temporarily or permanently store the output information in the memory 1704, and then transmit the output information to the output device 1706 through the output interface 1705; the output device 1706 outputs the output information to the outside of the computing device 1700 for the user to use.
- the computing device shown in FIG. 17 may be implemented as an electronic device, and the electronic device may include: a memory configured to store a program; a processor configured to run the program stored in the memory to Execute the information transmission method described in the above embodiments.
- the computing device shown in FIG. 17 can be implemented as an information transmission system, and the information transmission system can include: a memory configured to store a program; a processor configured to run the program stored in the memory , so as to execute the information transmission method described in the above implementation manner.
- the communication signal is reflected to the airborne terminal through the beam corresponding to the reflection weight according to the reflection weight of the reflection device, so as to ensure the communication information It can reach the airborne terminal smoothly and improve the channel quality of air coverage.
- the communication path between the base station and the airborne terminal is increased, thereby increasing the number of concurrent data streams sent by the base station to the airborne terminal, so that the The wireless communication system with empty coverage can support multi-stream transmission and improve the communication rate of the terminal.
- the reflection device by sending a communication signal carrying communication information to the reflection device, the reflection device can pass the reflection weight corresponding to the reflection weight according to the reflection weight of the reflection device
- the beam reflects the communication signal to the airborne terminal, ensuring that the communication information can reach the airborne terminal smoothly, and improving the channel quality of air coverage; on the basis of the traditional transmission channel between the base station and the airborne terminal, by adding reflection equipment, increase
- the communication path between the base station and the airborne terminal is increased, thereby increasing the number of concurrent data streams sent from the base station to the airborne terminal, enabling the air-to-air coverage wireless communication system to support multi-stream transmission, and improving the communication rate of the terminal.
- the communication path between the base station and the airborne terminal can be increased, thereby increasing the number of concurrent data streams sent by the base station to the airborne terminal, so that
- the wireless communication system with air-to-air coverage can support multi-stream transmission and improve the communication rate of the terminal.
- Computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code written in any combination of one or more programming languages or object code.
- ISA instruction set architecture
- Any logic flow block diagrams in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions.
- Computer programs can be stored on memory.
- the memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random-access memory (RAM), optical memory devices and systems (digital versatile disc DVD or CD), etc.
- Computer readable media may include non-transitory storage media.
- the data processor can be of any type suitable for the local technical environment, such as but not limited to general purpose computer, special purpose computer, microprocessor, digital signal processor (DSP), application specific integrated circuit (ASIC), programmable logic device (FGPA) and processors based on multi-core processor architectures.
- DSP digital signal processor
- ASIC application specific integrated circuit
- FGPA programmable logic device
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Abstract
Description
Claims (19)
- 一种信息传输方法,应用于反射设备,包括:获取基站发送的通信信息,所述通信信息使用通信信号进行承载;依据所述反射设备的反射权值,通过与所述反射权值对应的波束将所述通信信号反射至机载终端。
- 根据权利要求1所述的方法,其中,在所述依据所述反射设备的反射权值,通过与所述反射权值对应的波束将所述通信信号反射至机载终端之前,所述方法还包括:获取所述基站发送的控制信息;依据所述控制信息调整目标传输信道对应的波束的反射权值,所述目标传输信道是所述反射设备与所述机载终端之间的传输信道。
- 根据权利要求2所述的方法,其中,在所述依据所述控制信息调整目标传输信道对应的波束的反射权值之前,所述方法还包括:获取所述反射设备的位置信息和所述机载终端的位置信息;依据所述机载终端的位置信息和所述反射设备的位置信息,确定所述控制信息。
- 根据权利要求3所述的方法,其中,所述反射设备包括多个待使用反射单元;所述依据所述机载终端的位置信息和所述反射设备的位置信息,确定所述控制信息,包括:依据所述机载终端的位置信息和所述反射设备的位置信息,从所述多个待使用反射单元中选择目标反射单元,并确定所述目标反射单元对应的反射权值;依据所述目标反射单元对应的反射权值,确定所述控制信息。
- 根据权利要求1所述的方法,其中,所述获取基站发送的通信信息,包括:通过第一传输信道和第二传输信道中的至少一个,获取所述基站发送的所述通信信息,所述第一传输信道是所述反射设备与所述基站之间的视距径传输信道,所述第二传输信道是所述反射设备和所述基站之间的非视距径传输信道。
- 根据权利要求1所述的方法,其中,在所述依据所述反射设备的反射权值,通过与所述反射权值对应的波束将所述通信信号反射至机载终端之后,所述方法还包括:将所述机载终端发送的响应信号对应的波束反射至所述基站;其中,所述响应信号承载响应消息,所述响应消息是所述机载终端针对所述通信信息反馈的信息。
- 根据权利要求1至6中任一项所述的方法,其中,所述通信信息包括:广播信息、信道状态信息、下行控制信息和下行业务信息中的任意一种或几种。
- 一种信息传输方法,应用于基站,包括:发送承载通信信息的通信信号至反射设备,以供所述反射设备依据所述反射设备的反射权值,通过与所述反射权值对应的波束将所述通信信号反射至机载终端。
- 根据权利要求8所述的方法,其中,在所述发送承载通信信息的通信信号至反射设备之前,所述方法还包括:获取控制信息,所述控制信息配置用于调整目标传输信道对应的波束的反射权值,所述目标传输信道是所述反射设备与所述机载终端之间的传输信道;将所述控制信息传输至所述反射设备。
- 根据权利要求9所述的方法,其中,所述获取控制信息,包括:获取所述反射设备的位置信息和所述机载终端的位置信息;依据所述机载终端的位置信息和所述反射设备的位置信息,确定所述控制信息。
- 根据权利要求10所述的方法,其中,在所述将所述控制信息传输至所述反射设备之前,所述方法还包括:获取所述基站的位置信息;依据所述基站的位置信息和所述反射设备的位置信息,确定第一传输信道对应的波束的角度,所述第一传输信道是所述反射设备与所述基站之间的视距径传输信道。
- 根据权利要求11所述的方法,其中,所述第一传输信道包括:基于信道状态信息的传输信道,和/或,基于同步信号和广播物理信道PBCH块的传输信道。
- 根据权利要求9所述的方法,其中,所述目标传输信道包括:基于所述机载终端的第一波束确定的信道,或,基于所述机载终端的第二波束确定的信道,所述第一波束的波束宽度小于所述第二波束的波束宽度。
- 根据权利要求13所述的方法,其中,在所述将所述控制信息传输至所述反射设备之后,所述方法还包括:在确定所述目标传输信道是基于所述机载终端的第二波束确定的信道的情况下,采用最大比合并原则对所述目标传输信道传输的信息进行处理,获得响应信息;其中,所述响应信息是所述机载终端针对所述通信信息反馈的响应信息。
- 一种反射设备,包括:第一获取模块,配置为获取基站发送的通信信息,所述通信信息使用通信信号进行承载;反射模块,配置为依据所述反射设备的反射权值,通过与所述反射权值对应的波束将所述通信信号反射至机载终端。
- 一种基站,包括:承载模块,配置为使用通信信号承载通信信息;发送模块,配置为发送所述通信信号至反射设备,以供所述反射设备依据所述反射设备的反射权值,通过与所述反射权值对应的波束将所述通信信号反射至机载终端。
- 一种信息传输***,包括:反射设备,配置为执行如权利要求1-7中任一项所述的信息传输方法;基站,配置为执行如权利要求8-14中任一项所述的信息传输方法;机载终端,配置为获取所述基站发送的通信信息,并依据所述通信信息生成响应信息,采用目标传输信道传输所述响应信息至所述反射设备,以使所述反射设备传输所述响应信息至所述基站。
- 一种电子设备,包括:一个或多个处理器;存储器,其上存储有一个或多个程序,当所述一个或多个程序被所述一个或多个处理器执行时,使得所述一个或多个处理器实现如权利要求1-7中任一项所述的信息传输方法,或,如权利要求8-14中任一项所述的信息传输方法。
- 一种可读存储介质,其中,所述可读存储介质存储有计算机程序,所述计算机程序被处理器执行时实现如权利要求1-7中任一项 所述的信息传输方法,或,如权利要求8-14中任一项所述的信息传输方法。
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CN111181615A (zh) * | 2019-11-29 | 2020-05-19 | 广东工业大学 | 一种基于智能反射面的多小区无线通信方法 |
CN111245494A (zh) * | 2020-01-13 | 2020-06-05 | 东南大学 | 基于智能反射面的定位信息辅助波束控制方法 |
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US20140266870A1 (en) * | 2013-03-13 | 2014-09-18 | The Boeing Company | Compensating for a non-ideal surface of a reflector in a satellite communication system |
CN111181615A (zh) * | 2019-11-29 | 2020-05-19 | 广东工业大学 | 一种基于智能反射面的多小区无线通信方法 |
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