WO2016180116A1 - Procédé et dispositif d'utilisation de faisceau - Google Patents

Procédé et dispositif d'utilisation de faisceau Download PDF

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Publication number
WO2016180116A1
WO2016180116A1 PCT/CN2016/078719 CN2016078719W WO2016180116A1 WO 2016180116 A1 WO2016180116 A1 WO 2016180116A1 CN 2016078719 W CN2016078719 W CN 2016078719W WO 2016180116 A1 WO2016180116 A1 WO 2016180116A1
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WIPO (PCT)
Prior art keywords
frequency band
signal
communication end
frequency
channel
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PCT/CN2016/078719
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English (en)
Chinese (zh)
Inventor
刁心玺
王欣晖
窦建武
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中兴通讯股份有限公司
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Publication of WO2016180116A1 publication Critical patent/WO2016180116A1/fr

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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
    • H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • This application relates to, but is not limited to, the field of wireless communications.
  • the millimeter wave band can provide large-bandwidth wireless transmission.
  • the millimeter wave has good directivity, and it is easy to obtain the advantage of large-bandwidth continuous spectrum.
  • the millimeter wave also has difficulty in beam-orientation at the transceiver end, and communication at the transceiver end. The link is vulnerable to occlusion blocking.
  • the first device and the second device communicate through a low frequency band communication link to determine a search angle; then, the first device is in a direction indicated by the search angle.
  • Generating a first millimeter wave signal to search the second device wherein the first millimeter wave signal is a high frequency millimeter wave signal; and then, the first device receives feedback information sent by the second device, The second device sends the feedback information after receiving the first millimeter wave signal in a direction indicated by the search angle; and then, after receiving the feedback information, the first device determines
  • the second device implements millimeter wave phased array beam alignment in a direction indicated by the search angle.
  • the related art only selects available frequency bands in the high and low frequency bands to establish a communication link, lacks cooperation between frequency bands, and cannot quickly recognize the channel state of the millimeter wave band, that is, cannot dynamically and efficiently use the millimeter wave band or the wireless optical band, thereby causing The alignment of the beam at the transceiver end is low.
  • This paper provides a beam using method and device, which can improve the alignment rate of the beam at the transceiver end.
  • a method of using a beam comprising:
  • the first frequency band and the second frequency band include at least one of the following frequency band combinations:
  • the first frequency band is a frequency band having a frequency lower than 5 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 5 GHz
  • the first frequency band is a frequency band having a frequency lower than 10 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 10 GHz
  • the first frequency band is a frequency band having a frequency lower than 20 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 20 GHz
  • the first frequency band is a frequency band having a frequency lower than 30 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 30 GHz
  • the first frequency band is a frequency band having a frequency lower than 40 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 40 GHz
  • the first frequency band is a radio wave band having a frequency lower than 80 GHz
  • the second frequency band is a light wave band having a wavelength greater than 300 nm.
  • the method for performing visible channel identification between the first communication end and the second communication end by using the first frequency band includes:
  • the first communication end transmits the first signal on the first frequency band; or the first communication end transmits the first signal and the second signal on the first frequency band;
  • Sub-step two corresponding to the first communication end transmitting a first signal on a first frequency band, and the second communication end receiving the first signal by using two or more antennas;
  • the first communication end transmitting the first signal and the second signal on the first frequency band, and the second communication end receiving the first and second signals by using two or more antennas;
  • Sub-step three corresponding to the first communication end transmitting the first signal on the first frequency band, and acquiring the correlation of the first signal on the receiving antenna used by the second communication end;
  • the first communication end transmitting the first signal on the first frequency band or corresponding to the first communication end Transmitting the first and second signals on the first frequency band to obtain a variance of the first signal on the receiving antenna used by the second communication end;
  • Sub-step four corresponding to the first communication end transmitting the first signal on the first frequency band, determining whether the correlation between the different receiving antennas used by the first signal at the second communication end is greater than a visible channel correlation threshold, If yes, the channel between the transceivers is determined as a visible channel;
  • the rank number of the correlation matrix between the different receiving antennas used by the first and second signals at the second communication end is equal to 1, if , the channel between the transceivers is determined to be a visible channel;
  • the first communication end transmitting the first signal on the first frequency band or corresponding to the first communication end transmitting the first signal and the second signal on the first frequency band, determining that the first signal is used by the second communication end Whether the variance of the signal strength on different receiving antennas is smaller than the visible channel variance threshold, and if so, the channel between the transmitting and receiving terminals is determined as a visible channel.
  • the method for determining whether the rank of the correlation matrix between different receiving antennas used by the first signal and the second signal at the second communication end is equal to 1 includes the following steps:
  • the judgment is performed using the acquired rank index parameter RI data and/or precoding matrix index parameter PMI data.
  • the transmitting the service data by using the second frequency band between the first communication end and the second communication end includes the following steps:
  • the first communication end sends the following at least one type of control information to the second communication end by using the first frequency band:
  • Service data transmission channel indication information the information including time/frequency resource location information occupied by the service data transmission channel on the second frequency band;
  • Non-visible channel NLOS indication information
  • a beam direction adjustment indication information on the second frequency band including an adjustment direction and/or an adjustment amount of a beam direction of the first communication end on the second frequency band
  • the second communication end sends the following at least one type of control information to the first communication end by using the first frequency band:
  • Service data transmission channel indication information the information including time/frequency resource location information occupied by the service data transmission channel on the second frequency band;
  • Non-visible channel NLOS indication information
  • the beam direction adjustment indication information on the second frequency band including an adjustment direction and/or an adjustment amount of the beam direction of the second communication end on the second frequency band.
  • the method further includes: beam pointing guidance on the second frequency band;
  • the beam pointing guidance on the second frequency band includes the following steps:
  • the beam is directed to the first communication end, or a beam directed to the first communication end is selected from the beams on the second frequency band of the second communication end using at least one of the azimuth and elevation angles.
  • the measuring, in the first frequency band, at least one of an azimuth and a tilt angle of the second communication end relative to the first communication end including:
  • Acquiring amplitude and/or phase information of the second communication end transmit signal on the first frequency band using the antenna array at the first communication end, and estimating the azimuth or pitch angle using the amplitude and/or phase information;
  • the measuring at least one of an azimuth and a tilt angle of the first communication end relative to the second communication end on the first frequency band includes:
  • Acquiring amplitude and/or phase information of the first communication end transmit signal on the first frequency band using the antenna array at the second communication end, using the amplitude and/or phase information to estimate the azimuth or pitch angle;
  • a beam using device is applied to a communication end, comprising: a visible channel identification module, and a traffic channel configuration module on a second frequency band; wherein
  • the visible channel identification module is configured to: perform visible channel identification between the first frequency band and the opposite end;
  • the traffic channel configuration module on the second frequency band is configured to: after the visible channel is identified by using the first frequency band, use the second frequency band to transmit service data with the opposite end;
  • the first frequency band and the second frequency band include at least one of the following frequency band combinations:
  • the first frequency band is a frequency band having a frequency lower than 5 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 5 GHz
  • the first frequency band is a frequency band having a frequency lower than 10 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 10 GHz
  • the first frequency band is a frequency band having a frequency lower than 20 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 20 GHz
  • the first frequency band is a frequency band having a frequency lower than 30 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 30 GHz
  • the first frequency band is a frequency band having a frequency lower than 40 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 40 GHz
  • the first frequency band is a radio wave band having a frequency lower than 80 GHz
  • the second frequency band is a light wave band having a wavelength greater than 300 nm.
  • the visible channel identification module includes a transmitting unit, a first receiving unit, a first acquiring unit, and a first determining unit;
  • the transmitting unit is configured to: transmit a first signal to the opposite end on the first frequency band; or transmit the first signal and the second signal to the opposite end on the first frequency band;
  • the first receiving unit is configured to: receive the first signal transmitted by the opposite end by using two or more antennas;
  • the first acquiring unit is configured to: acquire a correlation of the first signal on a receiving antenna used by the opposite end;
  • the first determining unit is configured to: determine whether a correlation between different receiving antennas used by the first signal at the opposite end is greater than a visible channel correlation threshold, and if yes, determine a channel between the transmitting and receiving ends as visible channel.
  • the visible channel identification module includes a transmitting unit, a second receiving unit, a second acquiring unit, and a second determining unit;
  • the transmitting unit is configured to: transmit a first signal to the opposite end on the first frequency band; or transmit the first signal and the second signal to the opposite end on the first frequency band;
  • the second receiving unit is configured to receive the first signal and the second signal transmitted by the opposite end by using two or more antennas;
  • the second acquiring unit is configured to: acquire a correlation matrix of the first signal and the second signal on the receiving antenna used by the opposite end;
  • the second determining unit is configured to: determine whether the rank number of the correlation matrix between different receiving antennas used by the first signal and the second signal at the opposite end is equal to 1, and if yes, determine the channel between the transceiver terminals as Visual channel.
  • the visible channel identification module includes a transmitting unit, a third receiving unit, a third obtaining unit, and a third determining unit;
  • the transmitting unit is configured to: transmit a first signal to the opposite end on the first frequency band; or transmit the first signal and the second signal to the opposite end on the first frequency band;
  • the third receiving unit is configured to: receive the first signal transmitted by the opposite end by using two or more antennas; or receive the first signal of the opposite end by using two or more antennas and Second signal
  • the third acquiring unit is configured to: acquire a variance of the first signal on the receiving antenna used by the opposite end;
  • the third determining unit is configured to: determine whether the variance of the signal strength of the first signal used on different receiving antennas used by the opposite end is smaller than the visible channel variance threshold, and if yes, determine the channel between the transmitting and receiving ends as View channel.
  • the second determining unit is configured to:
  • the judgment is performed using the acquired rank index parameter RI data and/or precoding matrix index parameter PMI data.
  • the traffic channel configuration module on the second frequency band is set to:
  • the at least one type of control information is sent to the opposite end by using the first frequency band:
  • the control information includes time/frequency resource location information occupied by the service data transmission channel on a second frequency band;
  • Non-visible channel NLOS indication information
  • the beam direction adjustment indication information on the second frequency band the information including the adjustment direction and/or the adjustment amount of the beam pointing to the communication terminal on the second frequency band.
  • the device further includes: a beam pointing guidance module on the second frequency band, where the beam pointing guiding module is configured to:
  • the beam pointing guiding module on the second frequency band is set to:
  • the arrival time and/or arrival time difference information is used to estimate the azimuth or pitch angle using the arrival time and/or arrival time difference information.
  • a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
  • visual channel identification is performed between the first communication end and the second communication end using the first frequency band; after the visible channel is identified using the first frequency band, the first communication is performed
  • the second frequency band is used to transmit service data between the terminal and the second communication end; the communication terminal can dynamically and efficiently use the millimeter wave band or the wireless optical band, thereby improving the alignment ratio of the beam between the communication ends.
  • FIG. 1 is a schematic flow chart of an embodiment of a method for using a beam according to the present invention
  • FIG. 2 is a schematic structural diagram of an embodiment of a beam using device according to the present invention.
  • FIG. 3 is a schematic structural diagram of a second embodiment of a beam using device according to the present invention.
  • the beam using method provided by the embodiment of the present invention can be applied when communicating between the communication terminals through the millimeter wave band and wireless optical communication.
  • the beam usage method provided in this embodiment may be performed by a beam using device, where the beam using device may be separately set or may be disposed on a communication terminal, where the communication terminal may be a base station or a mobile terminal, and the device may adopt a software/hardware. achieve.
  • the beam usage method and device are described in detail below.
  • FIG. 1 is a schematic flowchart of a method for using a beam according to an embodiment of the present invention. As shown in FIG. 1 , the method for using the beam includes:
  • Step 101 Perform visual channel identification between the first communication end and the second communication end by using the first frequency band.
  • the visible channel in this embodiment includes a channel between the first communication end and the second communication end that has no occlusion state on the frequency band.
  • the first frequency band and the second frequency band include at least one of the following frequency band combinations:
  • the first frequency band is a frequency band having a frequency lower than 5 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 5 GHz
  • the first frequency band is a frequency band having a frequency lower than 10 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 10 GHz
  • the first frequency band is a frequency band having a frequency lower than 20 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 20 GHz
  • the first frequency band is a frequency band having a frequency lower than 30 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 30 GHz
  • the first frequency band is a frequency band having a frequency lower than 40 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 40 GHz
  • the first frequency band is a radio wave band having a frequency lower than 80 GHz
  • the second frequency band is a light wave band having a wavelength greater than 300 nm.
  • the using the first frequency band to perform visible channel identification between the first communication end and the second communication end includes:
  • the first communication end transmits the first signal on the first frequency band; or the first communication end transmits the first signal and the second signal on the first frequency band;
  • Sub-step two corresponding to the first communication end transmitting a first signal on a first frequency band, and the second communication end receiving the first signal by using two or more antennas;
  • the first communication end transmitting the first signal and the second signal on the first frequency band, and the second communication end receiving the first and second signals by using two or more antennas;
  • Sub-step three corresponding to the first communication end transmitting the first signal on the first frequency band, and acquiring the correlation of the first signal on the receiving antenna used by the second communication end;
  • Sub-step four corresponding to the first communication end transmitting the first signal on the first frequency band, determining whether the correlation between the different receiving antennas used by the first signal at the second communication end is greater than a visible channel correlation threshold, If yes, the channel between the transceivers is determined as a visible channel;
  • the rank number of the correlation matrix between the different receiving antennas used by the first and second signals at the second communication end is equal to 1, if , the channel between the transceivers is determined to be a visible channel;
  • the first communication end transmitting the first signal on the first frequency band or corresponding to the first communication end transmitting the first signal and the second signal on the first frequency band, determining that the first signal is used by the second communication end Whether the variance of the signal strength on different receiving antennas is smaller than the visible channel variance threshold, and if so, the channel between the transmitting and receiving ends is determined as a visible channel;
  • the method for determining whether the rank number of the correlation matrix between different receiving antennas used by the first signal and the second signal at the second communication end is equal to 1 includes the following steps:
  • the judgment is performed using the acquired rank index parameter RI data and/or precoding matrix index parameter PMI data.
  • the following three implementation manners are provided for the first communication end to determine the visible channel on the frequency band between the second communication end and the second communication end:
  • the first communication end uses at least two antennas to receive a first signal sent by the second communication end on the first frequency band; and then, the first communication end is configured according to the first Determining, by a signal, a correlation of the first signal on the at least two antennas; and then, the first communications end determines, according to the correlation, whether the correlation is greater than a visible channel correlation threshold; If yes, determining that the first frequency band is a visible channel; if not, determining that the first frequency band is a channel with an occlusion state.
  • the first communication end uses at least two antennas, and receives the second pass a first signal transmitted by the signal end on the first frequency band; then, the first communication end determines a variance of signal strength of the first signal on each of the antennas according to the first signal; Determining, according to the variance, whether the variance is smaller than a visible channel variance threshold; if yes, determining that the first frequency band is a visible channel; if not, determining that the first frequency band is The channel that blocks the state.
  • the first communication end uses at least two antennas, and receives a first signal and a second signal sent by the second communication end on the first frequency band; and then, the first communication end Determining, according to the first signal and the second signal, a correlation matrix rank number between the first signal and the second signal between each of the antennas; and then, the first communication end is configured according to the Determining the correlation matrix rank number, determining whether the correlation matrix rank number is equal to 1; if yes, determining that the first frequency band is a visible channel; if not, determining that the first frequency band is an occlusion channel.
  • the first communication end determines whether the correlation matrix rank number is equal to 1, and includes: using the obtained Rank Indexing Parameter (Rank Indication/Index, RI for short) data and/or precoding matrix index parameter (Precoding Matrix Indication) /Index, referred to as PMI) data is judged.
  • the RI is a rank indication/index parameter adopted by the 3GPP LTE MIMO system
  • the PMI is a precoding matrix indication/index parameter adopted by the 3GPP LTE MIMO system.
  • the visible channel correlation threshold ranges from 0.7 to 0.95; typically, the visible channel correlation threshold ranges from 0.8 to 0.9;
  • the calculation method of the visible channel correlation includes: taking a signal amplitude/intensity received on two or more antennas as a set of statistical samples, and the received signal amplitude/intensity on each antenna includes one or two The signal amplitude/intensity of the transmitting antenna is calculated according to the calculation method of autocorrelation/cross-correlation in statistics; or, the calculation method of the MIMO channel correlation matrix is used for calculation;
  • the visible channel variance threshold ranges from 0.05 to 0.3; typically, the visible channel variance threshold ranges from 0.1 to 0.2; the calculation method of the visible channel variance Including: taking a signal amplitude/intensity on two or more antennas as a set of statistical samples, and calculating according to the calculation method of variance in statistics.
  • Step 102 After identifying the visible channel by using the first frequency band, use the second frequency band to transmit service data between the first communication end and the second communication end.
  • the first frequency band is used to view between the first communication end and the second communication end.
  • Channel identification after identifying the visible channel using the first frequency band, using the second frequency band to transmit service data between the first communication end and the second communication end.
  • the communication terminal can dynamically and efficiently use the millimeter wave band or the wireless optical band, thereby improving the alignment ratio of the beam between the communication ends.
  • the method for transmitting service data by using the second frequency band between the first communication end and the second communication end includes the following steps:
  • the first communication end sends the following at least one type of control information to the second communication end by using the first frequency band:
  • Service data transmission channel indication information the information including time/frequency resource location information occupied by the service data transmission channel on the second frequency band;
  • Non-visual channel NLOS: Non-Line Of Sight
  • NLOS Non-Line Of Sight
  • a beam direction adjustment indication information on the second frequency band including an adjustment direction and/or an adjustment amount of a beam direction of the first communication end on the second frequency band
  • the second communication end sends the following at least one type of control information to the first communication end by using the first frequency band:
  • Service data transmission channel indication information the information including time/frequency resource location information occupied by the service data transmission channel on the second frequency band;
  • Non-visible channel NLOS indication information
  • the beam direction adjustment indication information on the second frequency band including an adjustment direction and/or an adjustment amount of the beam direction of the second communication end on the second frequency band.
  • the beam usage method provided in this embodiment may further include:
  • the beam pointing guidance on the second frequency band includes the following steps:
  • Measuring azimuth and elevation angle of the second communication end relative to the first communication end on the first frequency band At least one of the parameters, using at least one of the azimuth and pitch angles to direct a beam of the first communication end on the second frequency band to the second communication end, or using at least one of the azimuth and pitch angles Selecting, by the first communication end, a beam directed to the second communication end among the beams on the second frequency band; and/or
  • the beam is directed to the first communication end, or a beam directed to the first communication end is selected from the beams on the second frequency band of the second communication end using at least one of the azimuth and elevation angles.
  • the manner in which the first communication end performs beam pointing guidance to the second communication end on the second frequency band includes at least the following four types:
  • the electric sweep mode adjusts the beam pointing, including changing the direction of the composite beam by changing the signal amplitude and/or phase in the RF channel to/from different antennas;
  • the composite beam includes the transmitted wave number and/or the receive beam;
  • the second, electromechanical drive mode adjusts the beam pointing, including using a motor drive to adjust the orientation of the radio or optical antenna interface;
  • the beam selection mode adjusts beam pointing, including selecting a radio or optical antenna interface with a specific pointing as a transmitting/receiving antenna;
  • the fourth optically adjusting the beam pointing, including electromagnetically adjusting the position of the lens or electromagnetically/piezoelectrically adjusting the position of the optical galvanometer to effect a change in optical beam pointing.
  • the method for measuring at least one of azimuth and a pitch angle of a second communication end relative to a first communication end on a first frequency band including:
  • Acquiring amplitude and/or phase information of the second communication end transmit signal on the first frequency band using the antenna array at the first communication end, and estimating the azimuth or pitch angle using the amplitude and/or phase information;
  • measuring the orientation of the first communication end relative to the second communication end on the first frequency band At least one of the parameters of the pitch angle, including:
  • Acquiring amplitude and/or phase information of the first communication end transmit signal on the first frequency band using the antenna array at the second communication end, using the amplitude and/or phase information to estimate the azimuth or pitch angle;
  • the operation of the visible channel identification is performed before measuring at least one of azimuth or pitch angle of the second communication end relative to the first communication end on the first frequency band.
  • the operation of the visible channel identification is performed before measuring at least one of an azimuth or a tilt angle of the first communication end relative to the second communication end on the first frequency band.
  • estimating the azimuth or elevation angle using the amplitude and/or phase information includes at least the following two implementations. the way:
  • the first communication end acquires first information of a second communication end transmitting signal on the first frequency band by using an antenna array, where the first information includes an amplitude of a signal transmitted by the second communication end And/or phase information; the first communication end determines the azimuth and/or pitch angle by the first information.
  • the first communication end acquires second information of a second communication end transmitting signal on the first frequency band by using an antenna array, where the second information includes one or a combination of the following: The arrival time difference of the communication terminal transmitting the signal to the first communication end and the arrival time difference information of each antenna of the second communication end to the first communication end; the first communication end determines the location by using the second information Azimuth and/or pitch angle.
  • the channel occlusion state of the millimeter wave/wireless optical frequency band is quickly recognized, and the millimeter wave/wireless optical frequency band is dynamically and efficiently used, and the beam alignment speed is improved, thereby realizing a single hop hit of the beam.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for performing the beam using method.
  • the beam using apparatus is applied to a communication end, and includes: a visible channel identification module 21 and a traffic channel configuration module 22 on a second frequency band. . among them,
  • the visible channel identification module 21 is configured to: perform visible channel identification between the first frequency band and the opposite end;
  • the visible channel identification module 21 can include: an antenna unit, a radio frequency receiving channel, a radio frequency transmitting channel, and a channel measurement data processing unit.
  • the traffic channel configuration module 22 on the second frequency band is configured to transmit the service data using the second frequency band with the opposite end after identifying the visible channel using the first frequency band.
  • the traffic channel configuration module 22 on the second frequency band may include: an antenna unit, a radio frequency receiving channel, a radio frequency transmitting channel, and a channel configuration control unit.
  • the first frequency band and the second frequency band include at least one of the following frequency band combinations:
  • the first frequency band is a frequency band having a frequency lower than 5 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 5 GHz
  • the first frequency band is a frequency band having a frequency lower than 10 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 10 GHz
  • the first frequency band is a frequency band having a frequency lower than 20 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 20 GHz
  • the first frequency band is a frequency band having a frequency lower than 30 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 30 GHz
  • the first frequency band is a frequency band having a frequency lower than 40 GHz
  • the second frequency band is a frequency band having a frequency higher than or equal to 40 GHz
  • the first frequency band is a radio wave band having a frequency lower than 80 GHz
  • the second frequency band is a light wave band having a wavelength greater than 300 nm.
  • the beam using device may be applied to the first communication end or to the second communication end.
  • the opposite end is the second communication end; when the beam is used When the device is applied to the second communication end, the opposite end is the first communication end.
  • the first frequency band is used to perform visible channel identification between the first communication end and the second communication end; after the first frequency band is used to identify the visible channel, the first communication end and the first communication end are used.
  • the service data is transmitted between the second frequency band.
  • the communication terminal can dynamically and efficiently use the millimeter wave band or the wireless optical band, thereby improving the alignment ratio of the beam between the communication ends.
  • the visible channel identification module 21 is configured to: use at least two antennas, and receive a first signal sent by the opposite end on the first frequency band; according to the first signal, Determining a correlation of the first signal on the at least two antennas; determining, according to the correlation, whether the correlation is greater than a visible channel correlation threshold; if yes, determining that the first frequency band is visible Channel; if not, determining that the first frequency band is a channel with an occlusion state;
  • the visible channel identification module 21 includes a transmitting unit, a first receiving unit, a first acquiring unit, and a first determining unit.
  • the transmitting unit is configured to: transmit a first signal to the opposite end on the first frequency band; or transmit the first signal and the second signal to the opposite end on the first frequency band;
  • the first receiving unit is configured to: receive the first signal transmitted by the opposite end by using two or more antennas;
  • the first acquiring unit is configured to: acquire a correlation of the first signal on a receiving antenna used by the opposite end;
  • the first determining unit is configured to: determine whether a correlation between different receiving antennas used by the first signal at the opposite end is greater than a visible channel correlation threshold, and if yes, determine a channel between the transmitting and receiving ends as visible channel.
  • the visible channel identification module 21 includes a transmitting unit, a second receiving unit, a second acquiring unit, and a second determining unit.
  • the transmitting unit is configured to: transmit a first signal to the opposite end on the first frequency band; or transmit the first signal and the second signal to the opposite end on the first frequency band;
  • the second receiving unit is configured to receive the first signal and the second signal transmitted by the opposite end by using two or more antennas;
  • the second obtaining unit is configured to: acquire the first signal and the second signal used at the opposite end a correlation matrix on the receiving antenna;
  • the second determining unit is configured to: determine whether the rank number of the correlation matrix between different receiving antennas used by the first signal and the second signal at the opposite end is equal to 1, and if yes, determine the channel between the transceiver terminals as Visual channel.
  • the second determining unit is configured to determine using the obtained rank index parameter RI data and/or precoding matrix index parameter PMI data.
  • the visible channel identification module 21 includes a transmitting unit, a third receiving unit, a third obtaining unit, and a third determining unit.
  • the transmitting unit is configured to: transmit a first signal to the opposite end on the first frequency band; or transmit the first signal and the second signal to the opposite end on the first frequency band;
  • the third receiving unit is configured to: receive the first signal transmitted by the opposite end by using two or more antennas; or receive the first signal and the second signal of the opposite end by using two or more antennas signal;
  • the third acquiring unit is configured to: acquire a variance of the first signal on the receiving antenna used by the opposite end;
  • the third determining unit is configured to: determine whether the variance of the signal strength of the first signal used on different receiving antennas used by the opposite end is smaller than the visible channel variance threshold, and if yes, determine the channel between the transmitting and receiving ends as View channel.
  • the visible channel identification module 21 is configured to: receive the first signal and the second signal sent by the opposite end on the first frequency band by using at least two antennas; Determining, by the first signal and the second signal, a correlation matrix rank number of the first signal and the second signal between each of the antennas; determining the correlation according to the correlation matrix rank number Whether the matrix rank number is equal to 1; if yes, determining that the first frequency band is a visible channel; if not, determining that the first frequency band is a channel having an occlusion state.
  • the visible channel identification module 21 is configured to determine using the obtained rank index parameter RI data and/or precoding matrix index parameter PMI data.
  • the traffic channel configuration module 22 on the second frequency band is set to:
  • the at least one type of control information is sent to the opposite end by using the first frequency band:
  • the control information includes time/frequency resource location information occupied by the service data transmission channel on a second frequency band;
  • Non-visual channel NLOS: Non-Line Of Sight
  • NLOS Non-Line Of Sight
  • the beam direction adjustment indication information on the second frequency band the information including the adjustment direction and/or the adjustment amount of the beam pointing to the communication terminal on the second frequency band.
  • FIG. 3 is a schematic structural diagram of a second embodiment of a beam-use device according to the present invention.
  • the beam-using device may further include: a beam-direction guiding module 23 on a second frequency band;
  • the beam pointing guidance module 23 on the second frequency band is configured to perform beam pointing guidance to the opposite end on the second frequency band.
  • the beam pointing guidance module 23 on the second frequency band is configured to: measure at least one of an azimuth and a tilt angle of the opposite end with respect to the communication end on the first frequency band, using the At least one of azimuth and pitch angles directs a beam on the second frequency band of the communication terminal to the opposite end, or selects from a beam on the second frequency band of the communication terminal using at least one of the azimuth and pitch angles A beam pointing to the opposite end.
  • the beam pointing guidance module 23 on the second frequency band is set to:
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the embodiment of the invention realizes that the communication end can dynamically and efficiently use the millimeter wave band or the wireless optical band, thereby improving the alignment ratio of the beam between the communication ends.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un dispositif d'utilisation d'un faisceau. Le procédé comprend les étapes suivantes : utiliser une première bande de fréquences pour effectuer une identification de canal visible entre un premier terminal de communication et un second terminal de communication ; et après l'identification d'un canal visible en utilisant la première bande de fréquences, utiliser une seconde bande de fréquences pour transmettre des données de service entre le premier terminal de communication et le second terminal de communication.
PCT/CN2016/078719 2015-08-06 2016-04-07 Procédé et dispositif d'utilisation de faisceau WO2016180116A1 (fr)

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