WO2022156551A1 - 一种波束方向的调节方法及相关设备 - Google Patents

一种波束方向的调节方法及相关设备 Download PDF

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Publication number
WO2022156551A1
WO2022156551A1 PCT/CN2022/070915 CN2022070915W WO2022156551A1 WO 2022156551 A1 WO2022156551 A1 WO 2022156551A1 CN 2022070915 W CN2022070915 W CN 2022070915W WO 2022156551 A1 WO2022156551 A1 WO 2022156551A1
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WIPO (PCT)
Prior art keywords
communication device
information
beam direction
antenna
movement
Prior art date
Application number
PCT/CN2022/070915
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English (en)
French (fr)
Inventor
植美鹏
曾焱
王祥
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
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Priority claimed from CN202110090671.1A external-priority patent/CN114828034B/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2022156551A1 publication Critical patent/WO2022156551A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services

Definitions

  • the present application relates to the field of wireless communication, and in particular, to a beam direction adjustment method and related equipment.
  • millimeter-wave spectrum resources are more abundant, but due to the relatively high frequency of millimeter-wave, the propagation in the air will be greatly attenuated. Therefore, general millimeter-wave antennas use beamforming technology to narrow the millimeter-wave beam to increase the gain.
  • the time required for antenna alignment is longer. For example, if the station (Station, STA) moves, the STA may not be able to receive the millimeter wave beam transmitted by the access point (Access Point, AP), that is, the AP does not achieve antenna alignment. Then, the AP needs to perform 360° omnidirectional scanning according to a certain mode to complete the antenna alignment, which takes a long time.
  • STA station
  • AP Access Point
  • Embodiments of the present application provide a beam direction adjustment method and related equipment, which are convenient for realizing rapid alignment of antennas.
  • an embodiment of the present application provides a method for adjusting a beam direction.
  • the first communication device and the second communication device transmit information in a first beam direction. If the second communication device moves, the antennas of both parties cannot be aligned temporarily, thereby affecting normal communication. Then, before the second communication device moves, its possible next movement direction can be predicted, and the first information can be sent to the first communication device in the first beam direction.
  • the first information includes information used to indicate the predicted movement direction of the second communication device.
  • the first communication device adjusts the beam direction used for transmitting information with the second communication device.
  • the adjusted beam direction is the second beam direction. Further, the first communication device transmits information in the second beam direction with the second communication device moved according to the predicted movement direction.
  • the first communication device can know the next possible movement direction of the second communication device. Then, the first communication device can adjust the beam direction according to the first information, and transmit information with the moved second communication device in the adjusted second beam direction, thereby realizing rapid alignment of the antenna.
  • the method further includes: the first communication device sending the second information to the second communication device.
  • the second information is used to indicate at least one of a scanning path and a scanning speed adjusted by the first communication device from the first beam direction to the second beam direction. Therefore, the second communication device in the moving process can synchronously adjust the beam direction according to the second information, so as to ensure that the second communication device maintains communication with the first communication device during the moving process. That is to say, during the movement of the second communication device, both parties need to adjust the beam directions corresponding to their own antennas to align the antennas, so that the two parties can maintain communication.
  • the second communication device can also adjust the scanning speed of its own antenna synchronously according to the scanning speed of the first communication device, so that the synchronization effect of the two antennas is better.
  • the method further includes: after the first communication device receives the first information sent by the second communication device, it can learn that the second communication device will move next. Then, the first communication device can increase the width of the beam, so as to better track and align the second communication device.
  • the first communication device includes a first antenna.
  • the first communication device receiving the first information sent by the second communication device in the first beam direction includes: the first communication device receiving the first information sent by the second communication device through the first antenna in the first beam direction.
  • the transmission of information between the first communication device in the second beam direction and the second communication device after moving according to the predicted movement direction includes: the first communication device communicates with the second communication device after moving according to the predicted movement direction through the first antenna in the second beam direction. Information is transmitted between the second communication devices.
  • the first communication device includes a first antenna and a second antenna.
  • the first communication device receiving the first information sent by the second communication device in the first beam direction includes: the first communication device receiving the first information sent by the second communication device through the first antenna in the first beam direction.
  • the transmission of information between the first communication device in the second beam direction and the second communication device after moving according to the predicted movement direction includes: the first communication device communicates with the second communication device after moving according to the predicted movement direction through the second antenna in the second beam direction. Information is transmitted between the second communication devices. Alternatively, the first communication device transmits information between the second communication device after moving according to the predicted movement direction through the first antenna and the second antenna in the second beam direction.
  • the first communication device has multiple available antennas, the beam direction corresponding to the second antenna can be adjusted in advance when the first antenna is currently aligned, and when the first antenna cannot be aligned, it can be directly switched to the first antenna.
  • the antenna resources are better utilized, and the tracking effect of the antenna on the second communication device is better.
  • the first communication device can also use multiple antennas to communicate with the second communication device at the same time, so that the communication quality can be improved.
  • the movement direction includes a combination of multiple movement directions
  • the first information further includes the duration of the movement of the second communication device in each movement direction and the movement duration of the second communication device in every two adjacent movement directions. The time interval between moves. This enables the first communication device to more accurately acquire each subsequent action behavior of the second communication device.
  • the frequency used by the second communication device to send the first information is lower than the frequency used to send the service data.
  • the second communication device sends service data through millimeter waves with a relatively large bandwidth, and sends the first information through low-frequency electromagnetic waves.
  • Using low-frequency electromagnetic waves can reduce attenuation during transmission and the possibility of signals being blocked, thereby improving transmission. The stability of the first information.
  • the second communication device may send the service data and the first information together to the first communication device through a data frame, and the implementation cost is low.
  • the second communication device may also use a low-order modulation and coding scheme (Modulation and Coding Scheme, MCS) to send the first information, so as to improve the stability of transmitting the first information, for example, the order of the MCS is less than or equal to 3.
  • MCS Modulation and Coding Scheme
  • the present application provides a beam direction adjustment method.
  • the second communication device sends first information to the first communication device in the first beam direction, so that the first communication device adjusts the beam direction used to transmit information with the second communication device according to the first information.
  • the adjusted beam direction is the second beam direction, and the first information includes information used to indicate the predicted movement direction of the second communication device.
  • the second communication device transmits information with the first communication device in the second beam direction after moving according to the predicted movement direction.
  • the method before the second communication device moves according to the predicted movement direction and transmits information to the first communication device in the second beam direction, the method further includes: the second communication device receives the second communication device sent by the first communication device. information.
  • the second information is used to indicate at least one of a scanning path and a scanning speed adjusted by the first communication device from the first beam direction to the second beam direction.
  • the second communication device adjusts the beam direction according to the second information, so that the second communication device maintains communication with the first communication device during the moving process.
  • the method further includes: the second communication device adjusts, according to the second information, a beam width used for information transmission between the second communication device and the first communication device, wherein the adjusted beam width is greater than the pre-adjusted beam width.
  • the second communication device includes a first antenna
  • sending the first information to the first communication device in the first beam direction by the second communication device includes: An antenna transmits the first information to the first communication device.
  • transmitting information with the first communication device in the second beam direction includes: after the second communication device moves according to the predicted movement direction, the second communication device communicates with the first communication device through the first antenna in the second beam direction after moving according to the predicted movement direction transmit information.
  • the second communication device includes a first antenna and a second antenna
  • sending the first information to the first communication device by the second communication device in the first beam direction includes: the second communication device is in the first beam
  • the first information is sent to the first communication device through the first antenna in the direction.
  • transmitting information with the first communication device in the second beam direction includes: after the second communication device moves according to the predicted movement direction, and then communicates with the first communication device through the second antenna in the second beam direction Information is transmitted, or, after the second communication device moves according to the predicted movement direction, the information is transmitted with the first communication device through the first antenna and the second antenna in the second beam direction.
  • the movement direction includes a combination of multiple movement directions
  • the first information further includes the duration of the movement of the second communication device in each movement direction and the movement duration of the second communication device in every two adjacent movement directions. The time interval between moves.
  • the frequency used by the second communication device to send the first information to the first communication device is lower than the frequency used by the second communication device to send data information, and the second communication device receives the data sent by the first communication device.
  • the frequency used by the second information is lower than the frequency used by the second communication device to receive the data information.
  • the present application provides a beam direction adjustment device, the beam direction adjustment device includes a transceiver unit and an adjustment unit.
  • the transceiver unit is configured to: receive first information sent by the second communication device in the first beam direction, where the first information includes information used to indicate a predicted movement direction of the second communication device.
  • the adjusting unit is configured to: adjust the beam direction used for information transmission with the second communication device according to the first information, wherein the adjusted beam direction is the second beam direction.
  • the transceiver unit is further configured to: transmit information in the second beam direction with the second communication device that has moved according to the predicted movement direction.
  • the transceiver unit is further configured to: send second information to the second communication device, where the second information is used to instruct the first communication device to adjust the scanning path and scanning from the first beam direction to the second beam direction at least one of the speeds, so that the second communication device during the movement adjusts the beam direction according to the second information, so that the second communication device maintains communication with the first communication device during the movement.
  • the adjustment unit is further configured to: adjust the beam width used for information transmission between the second communication device and the first information, wherein the adjusted beam width is greater than the pre-adjustment beam width.
  • the first communication device includes a first antenna.
  • the transceiver unit is specifically configured to: receive the first information sent by the second communication device through the first antenna in the first beam direction. Information is transmitted between the second communication device after moving according to the predicted movement direction through the first antenna in the second beam direction.
  • the first communication device includes a first antenna and a second antenna.
  • the transceiver unit is specifically configured to: receive the first information sent by the second communication device through the first antenna in the first beam direction.
  • Information is transmitted between the second communication device and the second communication device moved according to the predicted movement direction through the second antenna in the second beam direction.
  • the information is transmitted between the second communication device after moving according to the predicted movement direction through the first antenna and the second antenna in the second beam direction.
  • the movement direction includes a combination of multiple movement directions
  • the first information further includes the duration of the movement of the second communication device in each movement direction and the movement duration of the second communication device in every two adjacent movement directions. The time interval between moves.
  • the frequency used by the first communication device to receive the first information sent by the second communication device is lower than the frequency used by the first communication device to receive data information, and the first communication device sends the second communication device The frequency used by the second information is lower than the frequency used by the first communication device to send the data information.
  • the present application provides a beam direction adjustment device, the beam direction adjustment device includes a transceiver unit and an adjustment unit.
  • the transceiver unit is configured to: send the first information to the first communication device in the first beam direction, so that the first communication device adjusts the beam direction used for transmitting information with the second communication device according to the first information.
  • the adjusted beam direction is the second beam direction
  • the first information includes information used to indicate the predicted movement direction of the second communication device. Further, after moving according to the predicted movement direction, information is transmitted with the first communication device in the second beam direction.
  • the transceiver unit before the second communication device moves according to the predicted movement direction and transmits information to the first communication device in the second beam direction, the transceiver unit is further configured to: receive the second information sent by the first communication device, The second information is used to indicate at least one of a scanning path and a scanning speed adjusted by the first communication device from the first beam direction to the second beam direction.
  • the adjusting unit is configured to: adjust the beam direction according to the second information during the moving process, so that the second communication device maintains communication with the first communication device during the moving process.
  • the adjusting unit is further configured to: adjust the beam width used for information transmission with the first communication device according to the second information, wherein the adjusted beam width is greater than the pre-adjusted beam width.
  • the second communication device includes the first antenna.
  • the transceiver unit is specifically configured to: send the first information to the first communication device through the first antenna in the first beam direction. After moving according to the predicted movement direction, information is transmitted with the first communication device through the first antenna in the second beam direction.
  • the second communication device includes a first antenna and a second antenna.
  • the transceiver unit is specifically configured to: send the first information to the first communication device through the first antenna in the first beam direction. After moving according to the predicted movement direction, information is transmitted with the first communication device through the second antenna in the second beam direction. Or, after moving according to the predicted movement direction, information is transmitted with the first communication device in the second beam direction through the first antenna and the second antenna.
  • the movement direction includes a combination of multiple movement directions
  • the first information further includes the duration of the movement of the second communication device in each movement direction and the movement duration of the second communication device in every two adjacent movement directions. The time interval between moves.
  • the frequency used by the second communication device to send the first information to the first communication device is lower than the frequency used by the second communication device to send data information, and the second communication device receives the data sent by the first communication device.
  • the frequency used by the second information is lower than the frequency used by the second communication device to receive the data information.
  • the present application provides a communication device, including: a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver are connected to each other through a line, and instructions are stored in the memory.
  • the processor invokes the instructions in the memory for executing the beam direction adjustment method shown in any one of the implementation manners of the first aspect.
  • the present application provides a communication device, including: a processor, a memory, and a transceiver.
  • the processor, the memory, and the transceiver are connected to each other through a line, and instructions are stored in the memory.
  • the processor invokes the instructions in the memory for executing the beam direction adjustment method shown in any one of the implementation manners of the second aspect.
  • the present application provides a communication system, including a first communication device and a second communication device.
  • the first communication device is the communication device shown in the fifth aspect
  • the second communication device is the communication device shown in the sixth aspect.
  • the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, wherein, when the computer program is executed by hardware, any one of the methods in the first aspect or the second aspect can be implemented some or all of the steps.
  • the present application provides a computer program product, which, when run on a computer, causes the computer to execute part or all of the steps of any one of the methods in the first aspect or the second aspect.
  • the first communication device will receive the first information sent by the second communication device in the first beam direction, where the first information includes information used to indicate the predicted movement direction of the second communication device. That is, the first communication device can know the next possible movement direction of the second communication device. Then, the first communication device can adjust the beam direction according to the first information, and transmit information with the moved second communication device in the adjusted second beam direction, thereby realizing rapid alignment of the antenna.
  • Fig. 1 is a kind of scene schematic diagram of antenna scanning alignment
  • FIG. 2 is a schematic diagram of an embodiment of a method for adjusting a beam direction in an embodiment of the present application
  • FIG. 3 is a schematic diagram of an antenna scanning path in an embodiment of the present application.
  • FIG. 4 is a schematic diagram of adjusting the beam direction in an embodiment of the present application.
  • FIG. 5 is another schematic diagram of adjusting the beam direction in an embodiment of the present application.
  • FIG. 6 is a schematic diagram of adjusting the beam width in an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a possible beam direction adjustment device
  • FIG. 8 is a schematic structural diagram of a possible communication device
  • FIG. 9 is a schematic structural diagram of a communication system provided by the present application.
  • the present application provides a beam direction adjustment method and related equipment, which can realize the rapid alignment of the antenna.
  • first and second in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, rather than limiting a specific sequence or sequence. It is to be understood that the above terms are interchangeable under appropriate circumstances so that the embodiments described herein can be practiced in sequences other than those described herein.
  • the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion.
  • a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units expressly listed, but may include steps or units not expressly listed or for such process, method, product or Other steps or units inherent to the device.
  • FIG. 1 is a schematic diagram of a scenario of antenna scanning alignment.
  • the AP and the STA can communicate normally, that is, the AP and the STA transmit information in the same beam direction.
  • the position of the STA is not fixed, and when the STA moves, the antenna cannot be aligned.
  • both parties need to perform antenna scanning to adjust the beam directions corresponding to their respective antennas, thereby re-realizing antenna alignment.
  • the AP if the antennas are not aligned, the AP will perform an omnidirectional 360° antenna scan according to a predetermined pattern to complete the antenna alignment.
  • the moving mode of the STA is irregular.
  • the antenna alignment can be achieved quickly.
  • the scanning direction of the AP antenna is not consistent with the moving direction of the STA, and the moving direction of the STA may be different each time. Therefore, if the AP scans the antenna according to a fixed pattern every time, it will take a long time to realize the antenna alignment.
  • FIG. 2 is a schematic diagram of an embodiment of a method for adjusting a beam direction in an embodiment of the present application.
  • the adjustment method of the beam direction includes the following steps.
  • the present application does not limit the specific types of the first communication device and the second communication device in the following embodiments.
  • the types of the first communication device and the second communication device include but are not limited to AP and STA.
  • a scenario to which the embodiments of the present application are applied may be a wireless communication system based on antenna alignment, or a space optical communication system based on beam alignment, which is not specifically limited here.
  • the embodiments of the present application are mainly introduced below based on a wireless communication system.
  • both the first communication device and the second communication device can radiate electromagnetic waves into space through their respective antennas.
  • the gain of a directional antenna in different directions will also be different.
  • both parties need to implement antenna alignment. That is, the signal sent by the first communication device in the beam direction used by the first communication device can be received by the second communication device.
  • the signal sent by the second communication device in the beam direction used by the second communication device can also be received by the first communication device.
  • the second communication device sends first information to the first communication device in the current first beam direction, where the first information includes information for indicating a predicted movement direction of the second communication device.
  • the first communication device is an AP
  • the second communication device is VR glasses worn by the player.
  • the VR glasses can predict the player's next actions according to the instructions of the game, for example, actions such as left, right, jump up, squat or rotate. It is equivalent to the VR glasses that can predict the next possible movement direction of itself.
  • the above-mentioned first information should also include the first identification of the first communication device and the second identification of the second communication device.
  • the first communication device may determine that it is the recipient of the first information according to the first identification, and determine the second communication device that performs information interaction with itself according to the second identification.
  • the movement direction predicted by the second communication device is specifically a combination of multiple movement directions.
  • the first information may further include the duration of the movement of the second communication device in each direction and the duration of each adjacent movement of the second communication device. The time interval between moves in both directions of motion.
  • the manner in which the second communication device sends the first information includes but is not limited to the following manners.
  • the first and second communication devices can send the service data and the first information together to the first communication device through the data frame, and the implementation cost is low.
  • the frequency used by the second communication device to send the first information is lower than the frequency used to send the service data.
  • the second communication device sends service data through millimeter waves with a relatively large bandwidth, and sends the first information through low-frequency electromagnetic waves. Using low-frequency electromagnetic waves can reduce attenuation during transmission and the possibility of signals being blocked, thereby improving transmission.
  • the stability of the first information The third and second communication devices use a low-order modulation and coding scheme (Modulation and Coding Scheme, MCS) to send the first information to improve the stability of transmitting the first information, for example, the order of the MCS is less than or equal to 3.
  • MCS Modulation and Coding Scheme
  • the first communication device determines the scanning path of the antenna according to the first information.
  • the first communication device can determine the next scanning path of the local antenna according to the movement direction predicted by the second communication device. That is to say, during the process that the second communication device moves according to the predicted movement direction, the first communication device can track and align the second communication device through antenna scanning.
  • FIG. 3 is a schematic diagram of an antenna scanning path in an embodiment of the present application.
  • the first communication device establishes a coordinate system with its own position as an origin. Before the second communication device does not move, the first communication device may determine the beam direction in the coordinate system when the current antenna is aligned, and then determine the scanning path of the beam according to the predicted movement direction.
  • the second communication device moves in the Z-axis direction, such as jumping up or squatting, the first communication device needs to adjust the angle between the beam direction and the plane where the X-axis and the Y-axis are located.
  • the first communication device sends the second information to the second communication device.
  • the first communication device before the first communication device adjusts the beam direction, the first communication device sends the second information to the second communication device, which is used to inform the second communication device of the scanning path for adjusting the beam direction next.
  • the purpose is to allow the second communication device to synchronously adjust the beam direction corresponding to its own antenna during the moving process.
  • the second message may also indicate the scanning speed of the first communication device to scan according to the scanning path, so that the two parties adjust the beam direction synchronization effect better and help improve the stability of communication.
  • the manner in which the first communication device sends the second information includes but is not limited to the following manners.
  • the first communication device can send the service data and the second information together to the second communication device through the data frame, and the implementation cost is low.
  • the frequency used by the first communication device to send the second information is lower than the frequency used to send the service data.
  • the first communication device sends service data through millimeter waves with a relatively large bandwidth, and sends second information through low-frequency electromagnetic waves.
  • the use of low-frequency electromagnetic waves can reduce attenuation during transmission and the possibility of signals being blocked, thereby improving transmission.
  • the stability of the second information In the third type, the first communication device uses a low-order MCS to send the second information, so as to improve the stability of transmitting the second information, for example, the order of the MCS is less than or equal to 3.
  • the first communication device adjusts the beam direction according to the scanning path.
  • the first communication device When the first communication device detects that the antenna is not aligned, it means that the second communication device has started to move. Then, the first communication device will start to adjust the beam direction corresponding to its own antenna according to the determined scanning path. Specifically, the first communication device may detect the current channel transmission quality parameters, such as bit error rate and retransmission rate, in real time. If the first communication device detects that the current channel transmission quality is poor, it can be considered that the antenna is not aligned. It should be noted that, there may be various implementation manners for the first communication device to adjust the beam direction, which is not specifically limited here. For example, the first communication device may adjust the beam direction by mechanically adjusting the rotation direction of the antenna. For another example, the first communication device may adjust the beam direction by adjusting the phase of the transmitted electromagnetic wave through the phase shifter.
  • the first communication device may adjust the beam direction by mechanically adjusting the rotation direction of the antenna.
  • the first communication device may adjust the beam direction by adjusting the phase of the transmitted electromagnetic wave through the phase shifter.
  • FIG. 4 is a schematic diagram of adjusting the beam direction in an embodiment of the present application.
  • the first communication device 10 currently has only one antenna available to communicate with the second communication device 20 .
  • the first communication device 10 is currently communicating with the second communication device through the first antenna in the first beam direction.
  • the second communication device 20 cannot be aligned with the first antenna due to movement, the first The communication device 10 will adjust the beam direction corresponding to the first antenna to achieve tracking and alignment of the second communication device 20 .
  • FIG. 5 is another schematic diagram of adjusting the beam direction in the embodiment of the present application.
  • the first communication device 10 has multiple antennas available to communicate with the second communication device 20 .
  • the first communication device 10 is currently communicating with the second communication device 20 through the first antenna in the first beam direction, and the first communication device 10 can adjust the movement direction according to the predicted movement direction of the second communication device 20 The beam direction corresponding to the second antenna.
  • the beam direction corresponding to the second antenna can be adjusted in advance, and when the first antenna cannot be aligned, it can be directly switched to the second antenna to work, making better use of antenna resources , and the tracking effect of the antenna on the second communication device 20 is better.
  • the first communication device 10 can also use multiple antennas to communicate with the second communication device 20 at the same time, so that the communication quality can be improved.
  • the antennas cannot be aligned, the beam directions corresponding to the multiple antennas are adjusted at the same time, so as to realize the tracking and alignment of the second communication device 20 .
  • the first communication device 10 in addition to adjusting the beam direction, can also adjust the beam width.
  • FIG. 6 is a schematic diagram of adjusting the beam width in an embodiment of the present application. Specifically, after the first communication device 10 receives the first information sent by the second communication device 20, it can know that the second communication device 20 will move next. Then, the first communication device 10 can increase the width of the beam, so as to better track and align the second communication device 20 .
  • the second communication device adjusts the beam direction according to the second information.
  • the second communication device After receiving the second information sent by the first communication device, the second communication device can learn the antenna scanning path of the first communication device. After the second communication device moves, its own antenna will not be able to aim at the first communication device. Then, when the second communication device starts to move, it can synchronously adjust the beam direction corresponding to its own antenna according to the antenna scanning path of the first communication device, so as to achieve antenna alignment.
  • the second communication device can also learn the scanning speed of the first communication device through the second information, and the second communication device can synchronously adjust the scanning speed of its own antenna according to the scanning speed of the first communication device, It makes the synchronization effect of the two antenna scans better. That is to say, during the movement of the second communication device, both parties need to adjust the beam directions corresponding to their own antennas to align the antennas, so that the two parties can maintain communication.
  • the second communication device may also adjust the beam width. Specifically, the second communication device can increase the width of the beam to facilitate faster antenna alignment.
  • the first communication device and the second communication device transmit information in the second beam direction.
  • both the first communication device and the second communication device can adjust the beam direction corresponding to their own antenna to the second beam direction. Then, the first communication device can receive the information sent by the second communication device in the second beam direction. Similarly, the second communication device may also receive the information sent by the first communication device in the second beam direction.
  • the first communication device will receive the first information sent by the second communication device in the first beam direction, where the first information includes information used to indicate the predicted movement direction of the second communication device. That is, the first communication device can know the next possible movement direction of the second communication device. Then, the first communication device can adjust the beam direction according to the first information, and transmit information with the moved second communication device in the adjusted second beam direction, thereby realizing rapid alignment of the antenna.
  • the beam direction adjustment method in the embodiment of the present application has been described above, and the beam direction adjustment apparatus and the communication device for executing the above method in the embodiment of the present application are described below.
  • FIG. 7 is a schematic structural diagram of a possible beam direction adjustment device.
  • the beam direction adjustment device includes a transceiver unit 701 and an adjustment unit 702 .
  • the beam direction adjustment apparatus may be the first communication device in the above embodiment shown in FIG. 2 , or may be the second communication device in the above embodiment shown in FIG. 2 .
  • the apparatus for adjusting the beam direction is the first communication device in the embodiment shown in FIG. 2, and the adjustment unit 702 is configured to perform steps 202 and 204 in the embodiment shown in FIG.
  • the unit 701 is configured to perform the information sending and receiving operation of the first communication device in the above-mentioned embodiment shown in FIG. 2 .
  • the apparatus for adjusting the beam direction is the second communication device in the above-mentioned embodiment shown in FIG. 2
  • the adjusting unit 702 is configured to perform step 205 in the above-mentioned embodiment shown in FIG. 2
  • the transceiver unit 701 It is used to perform the information sending and receiving operation of the second communication device in the above-mentioned embodiment shown in FIG. 2 .
  • FIG. 8 is a schematic structural diagram of a possible communication device.
  • the communication device includes a processor 801 , a memory 802 and a transceiver 803 .
  • the processor 801, the memory 802 and the transceiver 803 are connected to each other by wires, wherein the memory 802 is used to store program instructions and data.
  • Transceiver 803 includes a transmitter and a receiver. It should be noted that the communication device may be the first communication device or the second communication device in the embodiment shown in FIG. 2 above.
  • the memory 802 stores program instructions and data supporting the steps in the embodiment shown in FIG. 2
  • the processor 801 and the transceiver 803 are used to execute the method steps in the embodiment shown in FIG. 2 .
  • the communication device is the first communication device in the embodiment shown in FIG. 2
  • the processor 801 is configured to execute steps 202 and 204 in the embodiment shown in FIG. 2
  • the transceiver 803 is configured to execute the foregoing Information sending and receiving operations of the first communication device in the embodiment shown in FIG. 2
  • the communication device is the second communication device in the embodiment shown in FIG. 2
  • the processor 801 is configured to execute step 205 in the embodiment shown in FIG. 2
  • the transceiver 803 is configured to execute the embodiment shown in FIG. 2. The information sending and receiving operation of the second communication device in .
  • the processor shown in FIG. 8 above may adopt a general-purpose central processing unit (Central Processing Unit, CPU), a microprocessor, an application-specific integrated circuit ASIC, or at least one integrated circuit for executing related programs , so as to realize the technical solutions provided by the embodiments of the present application.
  • the memory shown in Figure 8 above may store operating systems and other applications.
  • program codes for implementing the technical solutions provided by the embodiments of the present application are stored in a memory and executed by a processor.
  • a memory may be included within the processor.
  • the processor and memory are two separate structures.
  • FIG. 9 is a schematic structural diagram of a communication system provided by the present application.
  • the communication system includes a first communication device 901 and a second communication device 902 .
  • the first communication device 901 is configured to execute part or all of the steps of any one of the methods performed by the first optical communication device in the above-mentioned embodiment shown in FIG. 2 .
  • the second communication device 902 is configured to execute part or all of the steps of any one of the methods performed by the second optical communication device in the above-mentioned embodiment shown in FIG. 2 .
  • the above-mentioned processing unit or processor may be a central processing unit, a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices , transistor logic devices, hardware components, or any combination thereof.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes an integration of one or more available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), and the like.

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Abstract

本申请实施例公开了一种波束方向的调节方法及相关设备，可以实现天线的快速对准。本申请实施例方法包括：第一通信设备在第一波束方向上接收第二通信设备发送的第一信息。其中，第一信息包括用于指示第二通信设备的预测运动方向的信息。接下来，第一通信设备将根据第一信息调节与第二通信设备之间传输信息所采用的波束方向。其中，调节后的波束方向为第二波束方向。进而，第一通信设备在第二波束方向上与按照预测运动方向移动后的第二通信设备传输信息。

Description

一种波束方向的调节方法及相关设备
本申请要求于2021年1月22日提交中国国家知识产权局、申请号为202110090671.1、申请名称为“一种波束方向的调节方法及相关设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信领域，尤其涉及一种波束方向的调节方法及相关设备。
背景技术
随着用户对WiFi带宽需求的提高，越来越多的厂商开始投入到毫米波的应用与开发当中。毫米波频谱资源相对于一般的WiFi频谱资源来说比较丰富，但是毫米波由于频率比较高，在空气中传播会有很大的衰减。所以，一般毫米波天线会使用波束成形的技术让毫米波的波束变窄以调高增益。
由于毫米波的波束较窄，天线对准所需要的时间较长。例如，若站点(Station，STA)进行了移动，STA可能将无法接收到接入点(Access Point，AP)发射的毫米波的波束，即AP没有实现天线对准。那么，AP就需要按照一定的模式进行360°全方位扫描以完成天线对准，所消耗的时间较长。
发明内容
本申请实施例提供了一种波束方向的调节方法及相关设备，便于实现天线的快速对准。
第一方面，本申请实施例提供了一种波束方向的调节方法。首先，第一通信设备和第二通信设备在第一波束方向上传输信息。若第二通信设备进行了移动就会导致双方的天线暂时无法对准，从而影响正常通信。那么，在第二通信设备移动之前可以对自身接下来可能的运动方向进行预测，并在第一波束方向上向第一通信设备发送第一信息。其中，第一信息包括用于指示第二通信设备的预测运动方向的信息。接下来，第一通信设备根据第一信息调节与第二通信设备之间传输信息所采用的波束方向。其中，调节后的波束方向为第二波束方向。进而，第一通信设备在第二波束方向上与按照预测运动方向移动后的第二通信设备传输信息。
在该实施方式中，第一通信设备可以知道第二通信设备接下来可能的运动方向。那么，第一通信设备就可以根据第一信息来调节波束方向，并在调节后的第二波束方向上与移动后的第二通信设备传输信息，从而实现天线的快速对准。
在一些可能的实施方式中，方法还包括：第一通信设备向第二通信设备发送第二信息。其中，第二信息用于指示第一通信设备由第一波束方向向第二波束方向调节的扫描路径和扫描速度中的至少一个。从而使得移动过程中的第二通信设备根据第二信息同步调节波束方向，确保第二通信设备在移动过程中与第一通信设备保持通信。也就是说，在第二通信 设备的移动过程中，双方都需要调节自身天线对应的波束方向来进行天线对准，使得双方可以保持通信。另外，第二通信设备也可以根据第一通信设备的扫描速度来同步调节自身天线的扫描速度，使得双方天线扫描的同步效果更好。
在一些可能的实施方式中，方法还包括：第一通信设备收到第二通信设备发送的第一信息后，即可获知第二通信设备接下来会进行移动。那么，第一通信设备就可以将波束的宽度调大，从而更好地对第二通信设备进行跟踪和对准。
在一些可能的实施方式中，第一通信设备包括第一天线。第一通信设备在第一波束方向上接收第二通信设备发送的第一信息包括：第一通信设备在第一波束方向上通过第一天线接收第二通信设备发送的第一信息。
第一通信设备在第二波束方向上与按照预测运动方向移动后的第二通信设备之间传输信息包括：第一通信设备在第二波束方向上通过第一天线与按照预测运动方向移动后的第二通信设备之间传输信息。
在该实施方式中，在第一通信设备只有一条可用天线情况下，提供了一种波束调节的具体实现方式，提高了本方案的实用性。
在一些可能的实施方式中，第一通信设备包括第一天线和第二天线。第一通信设备在第一波束方向上接收第二通信设备发送的第一信息包括：第一通信设备在第一波束方向上通过第一天线接收第二通信设备发送的第一信息。
第一通信设备在第二波束方向上与按照预测运动方向移动后的第二通信设备之间传输信息包括：第一通信设备在第二波束方向上通过第二天线与按照预测运动方向移动后的第二通信设备之间传输信息。或者，第一通信设备在第二波束方向上通过第一天线和第二天线与按照预测运动方向移动后的第二通信设备之间传输信息。
通过这种方式，如果第一通信设备有多条可用的天线，在当前第一天线对准时就可以提前去调节第二天线对应的波束方向，当第一天线无法对准时就可以直接切换到第二天线上工作，更好地利用了天线资源，并且天线对第二通信设备的跟踪效果更好。另外，第一通信设备也可以同时采用多条天线与第二通信设备进行通信，从而可以提高通信质量。
在一些可能的实施方式中，运动方向包括多个运动方向的组合，第一信息还包括第二通信设备按每个运动方向进行移动的时长以及第二通信设备按每相邻两个运动方向进行移动之间的时间间隔。使得第一通信设备可以更精确地获取到第二通信设备接下来的每一个动作行为。
在一些可能的实施方式中，第二通信设备发送第一信息所采用的频率低于发送业务数据所采用的频率。例如，第二通信设备通过带宽较大的毫米波来发送业务数据，并通过低频电磁波来发送第一信息，使用低频电磁波可以降低传输过程中的衰减和信号被阻挡的可能性，从而提高了传输第一信息的稳定性。
在一些可能的实施方式中，第二通信设备可以通过数据帧将业务数据和第一信息一同发送给第一通信设备，实现的代价较低。第二通信设备也可以采用低阶的调制编码策略(Modulation and Coding Scheme，MCS)来发送第一信息，以提高传输第一信息的稳定性， 例如，MCS的阶数小于或等于3。
第二方面，本申请提供了一种波束方向的调节方法。首先，第二通信设备在第一波束方向上向第一通信设备发送第一信息，以使得第一通信设备根据第一信息调节与第二通信设备之间传输信息所采用的波束方向。其中，调节后的波束方向为第二波束方向，第一信息包括用于指示第二通信设备的预测运动方向的信息。接下来，第二通信设备按照预测运动方向移动后在第二波束方向上与第一通信设备传输信息。
在一些可能的实施方式中，第二通信设备按照预测运动方向移动后在第二波束方向上与第一通信设备传输信息之前，方法还包括：第二通信设备接收第一通信设备发送的第二信息。其中，第二信息用于指示第一通信设备由第一波束方向向第二波束方向调节的扫描路径和扫描速度中的至少一个。第二通信设备在移动过程中根据第二信息调节波束方向，使得第二通信设备在移动过程中与第一通信设备保持通信。
在一些可能的实施方式中，方法还包括：第二通信设备根据第二信息调节与第一通信设备之间传输信息所采用的波束宽度，其中，调节后的波束宽度大于调节前的波束宽度。
在一些可能的实施方式中，第二通信设备包括第一天线，第二通信设备在第一波束方向上向第一通信设备发送第一信息包括：第二通信设备在第一波束方向上通过第一天线向第一通信设备发送第一信息。
第二通信设备按照预测运动方向移动后在第二波束方向上与第一通信设备传输信息包括：第二通信设备按照预测运动方向移动后在第二波束方向上通过第一天线与第一通信设备传输信息。
在一些可能的实施方式中，第二通信设备包括第一天线和第二天线，第二通信设备在第一波束方向上向第一通信设备发送第一信息包括：第二通信设备在第一波束方向上通过第一天线向第一通信设备发送第一信息。
第二通信设备按照预测运动方向移动后在第二波束方向上与第一通信设备传输信息包括：第二通信设备按照预测运动方向移动后在第二波束方向上通过第二天线与第一通信设备传输信息，或者，第二通信设备按照预测运动方向移动后在第二波束方向上通过第一天线和第二天线与第一通信设备传输信息。
在一些可能的实施方式中，运动方向包括多个运动方向的组合，第一信息还包括第二通信设备按每个运动方向进行移动的时长以及第二通信设备按每相邻两个运动方向进行移动之间的时间间隔。
在一些可能的实施方式中，第二通信设备向第一通信设备发送第一信息所采用的频率低于第二通信设备发送数据信息所采用的频率，第二通信设备接收第一通信设备发送的第二信息所采用的频率低于第二通信设备接收数据信息所采用的频率。
第三方面，本申请提供了一种波束方向调节装置，该波束方向调节装置包括收发单元和调节单元。
收发单元用于：在第一波束方向上接收第二通信设备发送的第一信息，第一信息包括用于指示第二通信设备的预测运动方向的信息。
调节单元用于：根据第一信息调节与第二通信设备之间传输信息所采用的波束方向，其中，调节后的波束方向为第二波束方向。
收发单元还用于：在第二波束方向上与按照预测运动方向移动后的第二通信设备传输信息。
在一些可能的实施方式中，收发单元还用于：向第二通信设备发送第二信息，第二信息用于指示第一通信设备由第一波束方向向第二波束方向调节的扫描路径和扫描速度中的至少一个，以使得移动过程中的第二通信设备根据第二信息调节波束方向，使得第二通信设备在移动过程中与第一通信设备保持通信。
在一些可能的实施方式中，调节单元还用于：根据第一信息调节与第二通信设备之间传输信息所采用的波束宽度，其中，调节后的波束宽度大于调节前的波束宽度。
在一些可能的实施方式中，第一通信设备包括第一天线。收发单元具体用于：在第一波束方向上通过第一天线接收第二通信设备发送的第一信息。在第二波束方向上通过第一天线与按照预测运动方向移动后的第二通信设备之间传输信息。
在一些可能的实施方式中，第一通信设备包括第一天线和第二天线。收发单元具体用于：在第一波束方向上通过第一天线接收第二通信设备发送的第一信息。在第二波束方向上通过第二天线与按照预测运动方向移动后的第二通信设备之间传输信息。或者，在第二波束方向上通过第一天线和第二天线与按照预测运动方向移动后的第二通信设备之间传输信息。
在一些可能的实施方式中，运动方向包括多个运动方向的组合，第一信息还包括第二通信设备按每个运动方向进行移动的时长以及第二通信设备按每相邻两个运动方向进行移动之间的时间间隔。
在一些可能的实施方式中，第一通信设备接收第二通信设备发送的第一信息所采用的频率低于第一通信设备接收数据信息所采用的频率，第一通信设备向第二通信设备发送第二信息所采用的频率低于第一通信设备发送数据信息所采用的频率。
第四方面，本申请提供了一种波束方向调节装置，该波束方向调节装置包括收发单元和调节单元。
收发单元用于：在第一波束方向上向第一通信设备发送第一信息，以使得第一通信设备根据第一信息调节与第二通信设备之间传输信息所采用的波束方向。其中，调节后的波束方向为第二波束方向，第一信息包括用于指示第二通信设备的预测运动方向的信息。进而，按照预测运动方向移动后在第二波束方向上与第一通信设备传输信息。
在一些可能的实施方式中，第二通信设备按照预测运动方向移动后在第二波束方向上与第一通信设备传输信息之前，收发单元还用于：接收第一通信设备发送的第二信息，第二信息用于指示第一通信设备由第一波束方向向第二波束方向调节的扫描路径和扫描速度中的至少一个。调节单元用于：在移动过程中根据第二信息调节波束方向，使得第二通信设备在移动过程中与第一通信设备保持通信。
在一些可能的实施方式中，调节单元还用于：根据第二信息调节与第一通信设备之间 传输信息所采用的波束宽度，其中，调节后的波束宽度大于调节前的波束宽度。
在一些可能的实施方式中，第二通信设备包括第一天线。收发单元具体用于：在第一波束方向上通过第一天线向第一通信设备发送第一信息。按照预测运动方向移动后在第二波束方向上通过第一天线与第一通信设备传输信息。
在一些可能的实施方式中，第二通信设备包括第一天线和第二天线。收发单元具体用于：在第一波束方向上通过第一天线向第一通信设备发送第一信息。按照预测运动方向移动后在第二波束方向上通过第二天线与第一通信设备传输信息。或者，按照预测运动方向移动后在第二波束方向上通过第一天线和第二天线与第一通信设备传输信息。
在一些可能的实施方式中，运动方向包括多个运动方向的组合，第一信息还包括第二通信设备按每个运动方向进行移动的时长以及第二通信设备按每相邻两个运动方向进行移动之间的时间间隔。
在一些可能的实施方式中，第二通信设备向第一通信设备发送第一信息所采用的频率低于第二通信设备发送数据信息所采用的频率，第二通信设备接收第一通信设备发送的第二信息所采用的频率低于第二通信设备接收数据信息所采用的频率。
第五方面，本申请提供了一种通信设备，包括：处理器、存储器以及收发器，处理器、存储器以及收发器通过线路互相连接，存储器中存储有指令。该处理器调用该存储器中的指令用于执行上述第一方面中任一实施方式所示的波束方向的调节方法。
第六方面，本申请提供了一种通信设备，包括：处理器、存储器以及收发器，处理器、存储器以及收发器通过线路互相连接，存储器中存储有指令。该处理器调用该存储器中的指令用于执行上述第二方面中任一实施方式所示的波束方向的调节方法。
第七方面，本申请提供了一种通信系统，包括第一通信设备和第二通信设备。其中，第一通信设备为上述第五方面所示的通信设备，第二通信设备为上述第六方面所示的通信设备。
第八方面，本申请提供了一种计算机可读存储介质，计算机可读存储介质存储有计算机程序，其中，计算机程序被硬件执行时能够实现上述第一方面或第二方面中的任意一种方法部分或全部步骤。
第九方面，本申请提供了一种计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第二方面中任意一种方法的部分或全部步骤。
本申请实施例中，第一通信设备会在第一波束方向上接收第二通信设备发送的第一信息，第一信息中包括用于指示第二通信设备的预测运动方向的信息。也就是说，第一通信设备可以知道第二通信设备接下来可能的运动方向。那么，第一通信设备就可以根据第一信息来调节波束方向，并在调节后的第二波束方向上与移动后的第二通信设备传输信息，从而实现天线的快速对准。
附图说明
图1为一种天线扫描对准的场景示意图；
图2为本申请实施例中波束方向的调节方法的一个实施例示意图；
图3为本申请实施例中天线扫描路径的一种示意图；
图4为本申请实施例中调节波束方向的一种示意图；
图5为本申请实施例中调节波束方向的另一种示意图；
图6为本申请实施例中调节波束宽度的一种示意图；
图7为一种可能的波束方向调节装置的结构示意图；
图8为一种可能的通信设备的结构示意图；
图9为本申请提供的一种通信系统的结构示意图。
具体实施方式
本申请提供了一种波束方向的调节方法及相关设备，可以实现天线的快速对准。需要说明的是，本申请说明书和权利要求书及上述附图中的术语“第一”和“第二”等用于区别类似的对象，而非限定特定的顺序或先后次序。应该理解，上述术语在适当情况下可以互换，以便在本申请描述的实施例能够以除了在本申请描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
图1为一种天线扫描对准的场景示意图。如图1所示，在AP和STA双方的天线对准的基础下，AP和STA可以正常进行通信，即AP和STA在同一个波束方向上传输信息。然而，STA的位置并非是固定不变的，当STA移动时就会出现天线无法对准的情况。这时就需要双方进行天线扫描以调节各自天线对应的波束方向，从而重新实现天线对准。以AP为例，若天线没有对准，AP将按照预定的模式进行全方位360°的天线扫描以完成天线对准。但是STA的移动方式是没有规律的，若AP天线的扫描方向与STA的移动方向一致就能较快地实现天线对准。但是大部分情况下，AP天线的扫描方向与STA的移动方向并不是一致的，并且STA每次移动的方向都可能是不同的。因此，如果AP每次都按照固定的模式来进行天线扫描，势必需要消耗较长的时间才能实现天线对准。
为此，本申请提供了一种波束方向的调节方法，可以实现天线的快速对准。图2为本申请实施例中波束方向的调节方法的一个实施例示意图。在示例中，波束方向的调节方法包括如下步骤。需要说明的是，本申请不限定下面实施例中第一通信设备和第二通信设备的具体类型，例如，第一通信设备和第二通信设备的类型包括但不限于AP和STA。另外，本申请实施例所应用的场景可以是基于天线对准的无线通信系统，也可以是基于光束对准的空间光通信系统，具体此处不做限定。为便于描述，下面主要基于无线通信系统来对本申请实施例进行介绍。
201、第二通信设备在第一波束方向上向第一通信设备发送的第一信息。
本实施例中，对于第一通信设备和第二通信设备来说，它们都可以通过各自的天线向 空间中辐射电磁波。定向天线在不同方向上的增益也会不同，为了保证通信质量，就需要采用天线增益较好的波束方向来传输信息。并且，为了保证第一通信设备和第二通信设备之间的正常通信，需要双方实现天线对准。也就是说，第一通信设备在其所采用的波束方向上发送的信号能被第二通信设备收到。同理，第二通信设备在其所采用的波束方向上发送的信号也能被第一通信设备收到。
需要说明的是，若第二通信设备进行了移动就会导致双方的天线暂时无法对准，从而影响正常通信。那么，在第二通信设备移动之前可以对自身接下来可能的运动方向进行预测。进而，第二通信设备在当前的第一波束方向上向第一通信设备发送第一信息，其中，第一信息包括用于指示第二通信设备的预测运动方向的信息。例如，在玩家进行虚拟现实(Virtual Reality，VR)游戏的场景中，第一通信设备为AP，第二通信设备为玩家佩带的VR眼镜。由于VR游戏通常要求玩家按照指令完成一些指定动作，因此VR眼镜可以根据游戏的指令来预测玩家接下来的动作，例如，向左、向右、上跳、下蹲或旋转等动作。也就相当于VR眼镜可以预测出自身接下来可能的移动方向。应理解，上述第一信息中还应当包括第一通信设备的第一标识和第二通信设备的第二标识。第一通信设备可以根据第一标识来确定自身是第一信息的接收方，并根据第二标识确定与自身进行信息交互的第二通信设备。
在一些可能的实施方式中，第二通信设备所预测的运动方向具体是多个运动方向的组合。那么，为了使第一通信设备可以更精确地获取到第二通信设备接下来的每一个动作行为，第一信息中还可以包括第二通信设备按每个方向进行移动的时长以及按每相邻两个运动方向进行移动之间的时间间隔。
需要说明的是，第二通信设备发送第一信息的方式包括但不限于以下列举的几种方式。第一种、第二通信设备可以通过数据帧将业务数据和第一信息一同发送给第一通信设备，实现的代价较低。第二种、第二通信设备发送第一信息所采用的频率低于发送业务数据所采用的频率。例如，第二通信设备通过带宽较大的毫米波来发送业务数据，并通过低频电磁波来发送第一信息，使用低频电磁波可以降低传输过程中的衰减和信号被阻挡的可能性，从而提高了传输第一信息的稳定性。第三种、第二通信设备采用低阶的调制编码策略(Modulation and Coding Scheme，MCS)来发送第一信息，以提高传输第一信息的稳定性，例如，MCS的阶数小于或等于3。
202、第一通信设备根据第一信息确定天线的扫描路径。
第一通信设备收到第一信息后，可以根据第二通信设备预测的运动方向来确定本地天线接下来的扫描路径。也即是说，在第二通信设备按照预测运动方向进行移动的过程中，第一通信设备可以通过天线扫描对第二通信设备进行跟踪和对准。具体地，图3为本申请实施例中天线扫描路径的一种示意图。如图3所述，第一通信设备以自身所在的位置为原点建立坐标系。在第二通信设备没有移动之前，第一通信设备可以确定当前天线对准时在坐标系中的波束方向，进而根据预测的运动方向来确定波束的扫描路径。以图3为例，若第二通信设备在Z轴方向上移动，例如上跳或者下蹲，则第一通信设备需要调节波束方向 与X轴和Y轴所在平面的夹角。
203、第一通信设备向第二通信设备发送第二信息。
本实施例中，在第一通信设备调节波束方向之前，第一通信设备会向第二通信设备发送第二信息，用来告知第二通信设备其接下来调节波束方向的扫描路径。其目的是为了让第二通信设备在移动过程中也同步调节自身天线所对应的波束方向。在一些可能的实施方式中，第二消息还可以指示第一通信设备按照扫描路径进行扫描的扫描速度，使得双方调节波束方向的同步效果更好，有助于提高通信的稳定性。
需要说明的是，第一通信设备发送第二信息的方式包括但不限于以下列举的几种方式。第一种、第一通信设备可以通过数据帧将业务数据和第二信息一同发送给第二通信设备，实现的代价较低。第二种、第一通信设备发送第二信息所采用的频率低于发送业务数据所采用的频率。例如，第一通信设备通过带宽较大的毫米波来发送业务数据，并通过低频电磁波来发送第二信息，使用低频电磁波可以降低传输过程中的衰减和信号被阻挡的可能性，从而提高了传输第二信息的稳定性。第三种、第一通信设备采用低阶的MCS来发送第二信息，以提高传输第二信息的稳定性，例如，MCS的阶数小于或等于3。
204、第一通信设备根据扫描路径调节波束方向。
当第一通信设备检测到天线没有对准时，即说明第二通信设备已经开始了移动。那么，第一通信设备将根据已经确定的扫描路径开始调节自身天线所对应的波束方向。具体地，第一通信设备可以实时检测当前的信道传输质量参数，如误码率和重传率等。若第一通信设备检测到当前的信道传输质量较差，即可认为天线没有对准。需要说明的是，第一通信设备调节波束方向的实现方式可以有多种，具体此处不做限定。例如，第一通信设备可以通过机械式调节天线的旋转方向来调节波束方向。又例如，第一通信设备可以通过移相器调节所发射电磁波的相位来调节波束方向。
应理解，基于第一通信设备自身可用天线数量的不同，也可以有多种调节方式，下面分别进行介绍。
第一种、图4为本申请实施例中调节波束方向的一种示意图。第一通信设备10当前只有一条可用的天线来与第二通信设备20进行通信。例如图4所示，第一通信设备10当前是在第一波束方向上通过第一天线与第二通信设备进行通信的，当第二通信设备20由于移动导致第一天线无法对准时，第一通信设备10将调节第一天线对应的波束方向，以实现对第二通信设备20的跟踪和对准。
第二种、图5为本申请实施例中调节波束方向的另一种示意图。第一通信设备10有多条可用的天线来与第二通信设备20进行通信。例如图5所示，第一通信设备10当前是在第一波束方向上通过第一天线与第二通信设备20进行通信的，第一通信设备10可以根据第二通信设备20的预测运动方向调节第二天线对应的波束方向。通过这种方式，在当前第一天线对准时就可以提前去调节第二天线对应的波束方向，当第一天线无法对准时就可以直接切换到第二天线上工作，更好地利用了天线资源，并且天线对第二通信设备20的跟踪效果更好。需要说明的是，第一通信设备10也可以同时采用多条天线与第二通信设备20 进行通信，从而可以提高通信质量。当天线无法对准时就同时调节这多条天线对应的波束方向，以实现对第二通信设备20的跟踪和对准。
在一些可能的实施方式中，第一通信设备10除了调节波束方向之外，还可以调节波束宽度。图6为本申请实施例中调节波束宽度的一种示意图。具体地，第一通信设备10收到第二通信设备20发送的第一信息后，即可获知第二通信设备20接下来会进行移动。那么，第一通信设备10就可以将波束的宽度调大，从而更好地对第二通信设备20进行跟踪和对准。
205、第二通信设备根据第二信息调节波束方向。
第二通信设备收到第一通信设备发送的第二信息后，即可获知第一通信设备的天线扫描路径。由于第二通信设备移动后自身的天线也将无法对准第一通信设备。那么，当第二通信设备开始移动时，就可以根据第一通信设备的天线扫描路径来同步调节自身天线对应的波束方向，以实现天线对准。在一些可能的实施方式中，第二通信设备还可以通过第二信息获知第一通信设备的扫描速度，第二通信设备就可以根据第一通信设备的扫描速度来同步调节自身天线的扫描速度，使得双方天线扫描的同步效果更好。也就是说，在第二通信设备的移动过程中，双方都需要调节自身天线对应的波束方向来进行天线对准，使得双方可以保持通信。
应理解，基于第二通信设备自身可用天线数量的不同，也可以有多种调节方式，具体与上述步骤204中所介绍的方法类似，此处不再赘述。
在一些可能的实施方式中，第二通信设备除了调节波束方向之外，还可以调节波束宽度。具体地，第二通信设备可以将波束的宽度调大，便于更快地实现天线对准。
206、第一通信设备和第二通信设备在第二波束方向上传输信息。
在第二通信设备的移动结束后，第一通信设备和第二通信设备都可以将自身天线对应的波束方向调节到第二波束方向。那么，第一通信设备可以在第二波束方向上接收到第二通信设备发送的信息。同理，第二通信设备也可以在第二波束方向上接收到第一通信设备发送的信息。
本申请实施例中，第一通信设备会在第一波束方向上接收第二通信设备发送的第一信息，第一信息中包括用于指示第二通信设备的预测运动方向的信息。也就是说，第一通信设备可以知道第二通信设备接下来可能的运动方向。那么，第一通信设备就可以根据第一信息来调节波束方向，并在调节后的第二波束方向上与移动后的第二通信设备传输信息，从而实现天线的快速对准。
上面对本申请实施例中的波束方向的调节方法进行了描述，下面对本申请实施例中用于执行上述方法的波束方向调节装置和通信设备进行描述。
图7为一种可能的波束方向调节装置的结构示意图。该波束方向调节装置包括收发单元701和调节单元702。需要说明的是，该波束方向调节装置可以是上述图2所示实施例中的第一通信设备，也可以是上述图2所示实施例中的第二通信设备。在一种可能的实现方式中，波束方向调节装置是上述图2所示实施例中的第一通信设备，调节单元702用于执 行上述图2所示实施例中的步骤202和步骤204，收发单元701用于执行上述图2所示实施例中第一通信设备的信息收发操作。在另一种可能的实现方式中，波束方向调节装置是上述图2所示实施例中的第二通信设备，调节单元702用于执行上述图2所示实施例中的步骤205，收发单元701用于执行上述图2所示实施例中第二通信设备的信息收发操作。
图8为一种可能的通信设备的结构示意图。该通信设备包括处理器801、存储器802以及收发器803。该处理器801、存储器802以及收发器803通过线路互相连接，其中，存储器802用于存储程序指令和数据。收发器803包含发射机和接收机。需要说明的是，该通信设备可以是上述图2所示实施例中的第一通信设备或第二通信设备。
在一种可能的实现方式中，存储器802存储了支持图2所示实施例中步骤的程序指令和数据，处理器801和收发器803用于执行图2所示实施例中的方法步骤。具体地，若该通信设备为上述图2所示实施例中的第一通信设备，则处理器801用于执行图2所示实施例中的步骤202和步骤204，收发器803用于执行上述图2所示实施例中第一通信设备的信息收发操作。若该通信设备为上述图2所示实施例中的第二通信设备，则处理器801用于执行图2所示实施例中的步骤205，收发器803用于执行上述图2所示实施例中第二通信设备的信息收发操作。
需要说明的是，上述图8中所示的处理器可以采用通用的中央处理器(Central Processing Unit，CPU)，微处理器，应用专用集成电路ASIC，或者至少一个集成电路，用于执行相关程序，以实现本申请实施例所提供的技术方案。上述图8中所示的存储器可以存储操作系统和其他应用程序。在通过软件或者固件来实现本申请实施例提供的技术方案时，用于实现本申请实施例提供的技术方案的程序代码保存在存储器中，并由处理器来执行。在一实施例中，处理器内部可以包括存储器。在另一实施例中，处理器和存储器是两个独立的结构。
图9为本申请提供的一种通信系统的结构示意图。该通信系统包括第一通信设备901和第二通信设备902。第一通信设备901用于执行上述图2所示实施例中由第一光通信设备执行的任意一种方法的部分或全部步骤。第二通信设备902用于执行上述图2所示实施例中由第二光通信设备执行的任意一种方法的部分或全部步骤。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，随机接入存储器等。具体地，例如：上述处理单元或处理器可以是中央处理器，通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。上述的这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
当使用软件实现时，上述实施例描述的方法步骤可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。

Claims (18)

  1. 一种波束方向的调节方法，其特征在于，包括：
    第一通信设备在第一波束方向上接收第二通信设备发送的第一信息，所述第一信息包括用于指示所述第二通信设备的预测运动方向的信息；
    所述第一通信设备根据所述第一信息调节与所述第二通信设备之间传输信息所采用的波束方向，其中，调节后的所述波束方向为第二波束方向；
    所述第一通信设备在所述第二波束方向上与按照所述预测运动方向移动后的所述第二通信设备传输信息。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备向所述第二通信设备发送第二信息，所述第二信息用于指示所述第一通信设备由所述第一波束方向向所述第二波束方向调节的扫描路径和扫描速度中的至少一个，以使得移动过程中的所述第二通信设备根据所述第二信息调节波束方向，使得所述第二通信设备在移动过程中与所述第一通信设备保持通信。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备根据所述第一信息调节与所述第二通信设备之间传输信息所采用的波束宽度，其中，调节后的波束宽度大于调节前的波束宽度。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述第一通信设备包括第一天线，所述第一通信设备在所述第一波束方向上接收所述第二通信设备发送的所述第一信息包括：
    所述第一通信设备在所述第一波束方向上通过所述第一天线接收所述第二通信设备发送的所述第一信息；
    所述第一通信设备在所述第二波束方向上与按照所述预测运动方向移动后的所述第二通信设备之间传输信息包括：
    所述第一通信设备在所述第二波束方向上通过所述第一天线与按照所述预测运动方向移动后的所述第二通信设备之间传输信息。
  5. 根据权利要求1至3中任一项所述的方法，其特征在于，所述第一通信设备包括第一天线和第二天线，所述第一通信设备在所述第一波束方向上接收所述第二通信设备发送的所述第一信息包括：
    所述第一通信设备在所述第一波束方向上通过所述第一天线接收所述第二通信设备发送的所述第一信息；
    所述第一通信设备在所述第二波束方向上与按照所述预测运动方向移动后的所述第二通信设备之间传输信息包括：
    所述第一通信设备在所述第二波束方向上通过所述第二天线与按照所述预测运动方向移动后的所述第二通信设备之间传输信息，或者，所述第一通信设备在所述第二波束方向上通过所述第一天线和所述第二天线与按照所述预测运动方向移动后的所述第二通信设备之间传输信息。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述运动方向包括多个运动 方向的组合，所述第一信息还包括所述第二通信设备按每个运动方向进行移动的时长以及所述第二通信设备按每相邻两个运动方向进行移动之间的时间间隔。
  7. 根据权利要求2至6中任一项所述的方法，其特征在于，所述第一通信设备接收所述第二通信设备发送的所述第一信息所采用的频率低于所述第一通信设备接收数据信息所采用的频率，所述第一通信设备向所述第二通信设备发送所述第二信息所采用的频率低于所述第一通信设备发送数据信息所采用的频率。
  8. 一种波束方向的调节方法，其特征在于，包括：
    第二通信设备在第一波束方向上向第一通信设备发送第一信息，以使得所述第一通信设备根据所述第一信息调节与所述第二通信设备之间传输信息所采用的波束方向，其中，调节后的所述波束方向为第二波束方向，所述第一信息包括用于指示所述第二通信设备的预测运动方向的信息；
    所述第二通信设备按照所述预测运动方向移动后在所述第二波束方向上与所述第一通信设备传输信息。
  9. 根据权利要求8所述的方法，其特征在于，所述第二通信设备按照所述预测运动方向移动后在所述第二波束方向上与所述第一通信设备传输信息之前，所述方法还包括：
    所述第二通信设备接收所述第一通信设备发送的第二信息，所述第二信息用于指示所述第一通信设备由所述第一波束方向向所述第二波束方向调节的扫描路径和扫描速度中的至少一个；
    所述第二通信设备在移动过程中根据所述第二信息调节波束方向，使得所述第二通信设备在移动过程中与所述第一通信设备保持通信。
  10. 根据权利要求9所述的方法，其特征在于，所述方法还包括：
    所述第二通信设备根据所述第二信息调节与所述第一通信设备之间传输信息所采用的波束宽度，其中，调节后的波束宽度大于调节前的波束宽度。
  11. 根据权利要求8至10中任一项所述的方法，其特征在于，所述第二通信设备包括第一天线，所述第二通信设备在所述第一波束方向上向所述第一通信设备发送所述第一信息包括：
    所述第二通信设备在所述第一波束方向上通过第一天线向所述第一通信设备发送所述第一信息；
    所述第二通信设备按照所述预测运动方向移动后在所述第二波束方向上与所述第一通信设备传输信息包括：
    所述第二通信设备按照所述预测运动方向移动后在所述第二波束方向上通过所述第一天线与所述第一通信设备传输信息。
  12. 根据权利要求8至10中任一项所述的方法，其特征在于，所述第二通信设备包括第一天线和第二天线，所述第二通信设备在所述第一波束方向上向所述第一通信设备发送所述第一信息包括：
    所述第二通信设备在所述第一波束方向上通过第一天线向所述第一通信设备发送所述第一信息；
    所述第二通信设备按照所述预测运动方向移动后在所述第二波束方向上与所述第一通信 设备传输信息包括：
    所述第二通信设备按照所述预测运动方向移动后在所述第二波束方向上通过所述第二天线与所述第一通信设备传输信息，或者，所述第二通信设备按照所述预测运动方向移动后在所述第二波束方向上通过所述第一天线和所述第二天线与所述第一通信设备传输信息。
  13. 根据权利要求8至12中任一项所述的方法，其特征在于，所述运动方向包括多个运动方向的组合，所述第一信息还包括所述第二通信设备按每个运动方向进行移动的时长以及所述第二通信设备按每相邻两个运动方向进行移动之间的时间间隔。
  14. 根据权利要求9至13中任一项所述的方法，其特征在于，所述第二通信设备向所述第一通信设备发送所述第一信息所采用的频率低于所述第二通信设备发送数据信息所采用的频率，所述第二通信设备接收所述第一通信设备发送的所述第二信息所采用的频率低于所述第二通信设备接收数据信息所采用的频率。
  15. 一种通信设备，其特征在于，包括：处理器、存储器以及收发器，所述处理器、所述存储器以及所述收发器通过线路互相连接，所述存储器中存储有指令，所述处理器调取所述指令用于执行如权利要求1至7中任一项所述的方法。
  16. 一种通信设备，其特征在于，包括：处理器、存储器以及收发器，所述处理器、所述存储器以及所述收发器通过线路互相连接，所述存储器中存储有指令，所述处理器调取所述指令用于执行如权利要求8至14中任一项所述的方法。
  17. 一种通信系统，其特征在于，包括第一通信设备和第二通信设备，所述第一通信设备是如权利要求15所述的通信设备，所述第二通信设备是如权利要求16所述的通信设备。
  18. 一种计算机可读存储介质，其特征在于，包括计算机指令，当所述计算机指令在计算机设备上运行时，使得所述计算机设备执行如权利要求1至14中任一项所述的方法。
PCT/CN2022/070915 2021-01-22 2022-01-10 一种波束方向的调节方法及相关设备 WO2022156551A1 (zh)

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