WO2019077839A1 - Wireless communication station, system, method, and non-transitory computer-readable medium - Google Patents

Wireless communication station, system, method, and non-transitory computer-readable medium Download PDF

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Publication number
WO2019077839A1
WO2019077839A1 PCT/JP2018/028520 JP2018028520W WO2019077839A1 WO 2019077839 A1 WO2019077839 A1 WO 2019077839A1 JP 2018028520 W JP2018028520 W JP 2018028520W WO 2019077839 A1 WO2019077839 A1 WO 2019077839A1
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WIPO (PCT)
Prior art keywords
station
control information
transmission
transmission control
reception
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PCT/JP2018/028520
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French (fr)
Japanese (ja)
Inventor
博文 大坪
憲昭 住田
直道 間島
育実 和田
Original Assignee
Ｎｅｃネットワーク・センサ株式会社
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Priority to JP2019549120A priority Critical patent/JPWO2019077839A1/en
Publication of WO2019077839A1 publication Critical patent/WO2019077839A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding

Definitions

  • the present invention relates to a wireless communication station, system, method and program, and more particularly to a wireless communication station, system, method and program having a modulator / demodulator capable of performing adaptive coding rate modulation in non-line-of-sight communication. .
  • non-line-of-sight communication may be referred to as OH (Over the Horizon) communication.
  • the adaptive coding rate modulation scheme may be referred to as ACM (Adaptive Coding and Modulation).
  • a base station determines a communication route determining unit that determines a communication route used for communication with a terminal, and the determined communication route. And a ratio calculation unit that calculates the ratio of the amount of data transmission for each determined communication route, and the communication route in the determined best communication condition. Transmits a control signal to the terminal via the communication path, and transmits data to the terminal based on the calculated data transmission amount for each communication path via a plurality of communication paths including the communication path in the best communication condition. It is disclosed that the mobile terminal has a base station transmitter, and the terminal has a terminal receiver that receives control signals and data. Patent Document 1 discloses that a communication path to be used for communication is determined based on the reception status of each of a plurality of communication paths, and the amount of data to be transmitted on the determined transmission path is determined.
  • a base station includes a modulation scheme determination unit that determines a modulation scheme of communication for each of the communication paths, and a coding rate determination unit that determines coding rates for each of the communication paths. It is disclosed that the modulation scheme determination unit and the coding rate determination unit determine the modulation scheme and the coding rate based on the information indicating the reception status included in the response signal transmitted from the terminal.
  • Patent Document 1 transmitting the same data together with the transmission control information of the own station and the transmission control information of the other station in a transmission channel in a single communication channel of non-line-of-sight communication, and transmitting the transmission channel It is not disclosed to receive, demodulate and decode the same data based on the control information contained in.
  • the present invention has been made to solve such a problem, and provides a radio communication station, system, method and program having a modem capable of performing adaptive coding rate modulation in non-line-of-sight communication.
  • the purpose is to
  • the wireless communication station is A demodulation unit that performs demodulation and decoding based on the station transmission control information included in the reception channel received from the opposite station communicating with the local station; A control unit that generates new game transmission control information on control of transmission data of the corresponding station based on the reception status of the reception channel; The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station A modulation unit that transmits transmission data by including it in the transmission channel; Equipped with
  • the wireless communication station is A demodulation unit that performs demodulation and decoding based on the station transmission control information included in the reception channel received from the opposite station communicating with the local station; A control unit that is included in the reception channel and transmits the reception status of the transmission channel transmitted from the local station at the other station to a modulation unit; Local transmission control information on control of transmission data of the local station is generated based on the reception status of the transmission channel at the other station, and encoding and modulation are performed based on the local transmission control information, and the local station
  • the modulation unit which transmits transmission control information, the reception status of the reception channel at the own station, and the transmission data of the own station in the transmission channel; Equipped with
  • a wireless communication system is A system comprising an own station and a game station in communication with the own station, comprising:
  • the own station is An own station demodulation unit that performs demodulation and decoding based on the opposite station transmission control information included in the own station reception channel received from the opposite station;
  • a self-station control unit that generates new game transmission control information related to control of transmission data of the opposite station based on the reception status of the self-station reception channel;
  • the encoding and modulation are performed based on the own station transmission control information related to the control of the own station transmission data included in the own station reception channel, and the own station transmission control information, the new game transmission control information, and the own station
  • a self-station modulation unit for transmitting the transmission data of the above-mentioned station in a self-station transmission channel
  • the game is A station demodulation unit that performs demodulation and decoding based on the station transmission control information included in the station reception channel received from the station;
  • a station control unit that generates new own station transmission control information
  • the method according to the invention is Performing demodulation and decoding based on game transmission control information included in the reception channel received from the station communicating with the own station; Generating new game transmission control information related to control of transmission data of the station based on the reception status of the reception channel; The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station Transmitting the transmission data with the transmission channel included; Equipped with
  • the program according to the present invention is Performing demodulation and decoding based on game transmission control information included in the reception channel received from the station communicating with the own station; Generating new game transmission control information related to control of transmission data of the station based on the reception status of the reception channel; The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station Transmitting the transmission data with the transmission channel included; On a computer.
  • a wireless communication station, system, method and program having a modulator / demodulator capable of performing adaptive coding rate modulation in out-of-sight communication.
  • FIG. 1 is a block diagram illustrating a wireless communication station according to Embodiment 1;
  • FIG. 2 is a block diagram illustrating a modulation unit according to Embodiment 1;
  • FIG. 2 is a diagram illustrating a modulation scheme and a coding rate according to Embodiment 1.
  • FIG. 2 is a block diagram illustrating the configuration of a frame according to Embodiment 1;
  • FIG. 2 is a block diagram illustrating a demodulation unit and a control unit according to the first embodiment.
  • FIG. 7 is a block diagram illustrating a wireless communication station according to Embodiment 2;
  • FIG. 1 is a block diagram illustrating a radio communication station according to the first embodiment.
  • the system 10s includes A station and B station.
  • the station A is referred to as a wireless communication station 10
  • the station B is referred to as a wireless communication station 20.
  • a tropospheric scatter path 80 exists between the wireless communication station 10 (station A) and the wireless communication station 20 (station B).
  • the tropospheric scatterer 80 is a non-line-of-sight communication path due to tropospheric scatterers.
  • the wireless communication station 10 communicates with the wireless communication station 20 via the troposphere scatterer 80.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the apparatus In mobile communication, there is an adaptive coding rate modulation technique used in LTE (Long Term Evolution) and in satellite communication DVB-S2 (Digital Video Broadcasting-Satellite Second Generation).
  • the apparatus wireless communication station
  • the apparatus is an apparatus in which the technique of the adaptive coding rate modulation method is incorporated in a modem for line-of-sight communication.
  • the radio communication station 10 which is a station A, includes a modulator-demodulator 10m, and the modulator-demodulator 10m includes a controller 11, a modulator 12, and a demodulator 13.
  • the control unit 11 controls transmission / reception coding rate, modulation scheme and the like, and the modulation unit 12 encodes and modulates data to transmit.
  • the demodulator 13 receives data from the wireless communication station 20 which is station B, and demodulates and decodes the received data.
  • the wireless communication station 20 is a wireless communication station that communicates in opposition to the wireless communication station 10. Therefore, the wireless communication station 10 may be referred to as a home station, and the wireless communication station 20 may be referred to as a game.
  • the wireless communication station 10 further includes a plurality of antennas (not shown), a wireless interface (not shown), and the like for communicating with the wireless communication station 20 via the troposphere scattering path 80.
  • the plurality of antennas and the wireless interface of the wireless communication station 10 are general ones, and thus the description thereof is omitted.
  • the wireless communication station 10 transmits data to the wireless communication station 20 via the troposphere scatterer 80 on the transmission channel TC1.
  • the wireless communication station 20 receives data transmitted from the wireless communication station 10 on the reception channel RC1 and the reception channel RC2.
  • the number of reception channels is larger than the number of transmission channels.
  • the wireless communication station 20 transmits data to the wireless communication station 10 via the troposphere scatterer 80 on the transmission channel TC1.
  • the wireless communication station 10 receives data transmitted from the wireless communication station 20 on the reception channel RC1 and the reception channel RC2.
  • the demodulation unit 13 of the wireless communication station 10 demodulates and decodes the received data based on the transmission control information on the other station included in the reception channels RC1-RC2 received from the wireless communication station 20 communicating with the wireless communication station 10 in the opposite direction. I do.
  • the demodulator 13 may thus receive a plurality of receive channels RC1-RC2.
  • the demodulation unit 13 extracts counter transmission control information (self-station reception control information) included in the reception channels RC1 and RC2.
  • the counter transmission control information includes the modulation scheme and the coding rate of data transmitted from the wireless communication station 20 and received by the wireless communication station 10.
  • the demodulation unit 13 demodulates and decodes the received data based on the modulation scheme and the coding rate included in the peer transmission control information.
  • the data of the reception channels RC1 to RC2 transmitted from the wireless communication station 20 and received by the wireless communication station 10 includes the point-to-point transmission control information.
  • the game transmission control information is information on control of data transmitted from the radio communication station 20 which is the game, and includes a modulation scheme and a coding rate of the data.
  • the wireless communication station 10 When receiving data, the wireless communication station 10 demodulates and decodes the data based on the modulation scheme and the coding rate. As described above, since the opposite station transmission control information is used when receiving, demodulating and decoding data, it may be referred to as own station reception control information.
  • the demodulation unit 13 extracts the own-station transmission control information included in the reception channels RC1 to RC2 received from the wireless communication station 20. Further, the demodulation unit 13 outputs, to the control unit 11, the reception status of the reception channels RC1-RC2 received from the radio communication station 20 and the extracted self-station transmission control information.
  • the demodulation unit 13 includes a function capable of correcting distortion of the transmission data generated by the transmission data of the radio communication station 20 propagating through the communication line out of line of sight due to tropospheric scattering or mountain diffraction. For example, an adaptive equalizer may be mentioned as one having such a function that can be corrected.
  • the control unit 11 generates new game transmission control information related to control of transmission data of the radio communication station 20 based on the reception status of the reception channels RC1 to RC2 output from the demodulation unit 13.
  • the control unit 11 When the reception condition of the reception channels RC1 to RC2 is bad, the control unit 11 generates new game transmission control information in which a modulation scheme having a low degree of modulation and a low coding rate are set. When the reception condition of the reception channels RC1 to RC2 is good, the control unit 11 generates new point-to-point transmission control information in which a modulation scheme (multi-level modulation) having a high modulation factor and a high coding rate are set.
  • a modulation scheme multi-level modulation
  • the control unit 11 generates the carrier to noise ratio, the signal to noise ratio, the reception level and the error rate of the reception channels RC1 to RC2 based on the reception situation.
  • the control unit 11 generates new transmission control information on control of transmission data of the radio communication station 20 based on at least one of the carrier to noise ratio, the signal to noise ratio, the reception level and the error rate.
  • the control unit 11 When the signal-to-noise ratio is low, the control unit 11 generates new point-to-point transmission control information in which a modulation scheme with a low degree of modulation and a low coding rate are set. When the signal-to-noise ratio is high, the control unit 11 generates new point-to-point transmission control information in which a modulation scheme (multi-level modulation) with a high degree of modulation and a high coding rate are set.
  • a modulation scheme multi-level modulation
  • the control unit 11 generates a carrier-to-noise ratio, a signal-to-noise ratio, a reception level and an error rate for each of the plurality of reception channels RC1-RC2 based on the reception status.
  • the control unit 11 may generate new transmission control information on the basis of the plurality of generated carrier-to-noise ratios, the signal-to-noise ratio, the reception level, and the average value of at least one of the error rates.
  • the new transmission control information on the other side includes the modulation scheme, the coding scheme, and the coding rate of the transmission data of the wireless communication station 20 (transmission data transmitted from the wireless communication station 20).
  • the own-station transmission control information also includes the modulation scheme, the coding scheme, and the coding rate of transmission data of the wireless communication station 10 (transmission data transmitted from the wireless communication station 10).
  • One example of the coding scheme is BCH coding or Low Density Parity Check (LDPC) coding.
  • LDPC Low Density Parity Check
  • the control unit 11 outputs, to the modulation unit 12, the generated game transmission control information and the local transmission control information acquired from the demodulation unit 13.
  • the modulation unit 12 encodes and modulates transmission data based on own-station transmission control information related to control of transmission data of the radio communication station 10 included in the reception channels RC1 to RC2 from the radio communication station 20. That is, the modulation unit 12 determines the modulation scheme and the coding rate from the own-station transmission control information acquired from the control unit 11, and performs transmission data encoding and modulation.
  • the modulation unit 12 includes the transmission control information of the own station, the new transmission control information on the other station, and the transmission data of the radio communication station 10 in the transmission channel TC1 and transmits the transmission channel TC1 to the radio communication station 20.
  • the transmission channel TC1 is transmitted to the tropospheric scatterer 80.
  • the modulation unit 12 may multiplex and transmit its own station transmission control information, new counter transmission control information, and transmission data of the wireless communication station 10 in a frame. That is, the modulation unit 12 may time division multiplex and transmit own-station transmission control information, new counter transmission control information, and transmission data.
  • control information the own station transmission control information and the new counter transmission control information
  • transmission data the transmission data can be carried on a single same transmission channel, and the control information and the transmission data are transmitted separately. There is no need to send on the channel.
  • the wireless communication station 20 has the same configuration as the wireless communication station 10.
  • the wireless communication station 20 includes a control unit 21, a modulation unit 22, and a demodulation unit 23.
  • the demodulation unit 23 of the wireless communication station 20 performs demodulation and decoding based on the own station transmission control information included in the reception channels RC1 to RC2 received from the wireless communication station 10.
  • the control unit 21 generates new own-station transmission control information related to control of transmission data of the radio communication station 10 based on the reception status of the reception channels RC1-RC2 received from the radio communication station 10.
  • the modulation unit 22 performs encoding and modulation based on the transmission control information on the other side regarding control of transmission data of the wireless communication station 20 included in the reception channels RC1 to RC2 received from the wireless communication station 10. In addition, the modulation unit 22 transmits, to the radio communication station 10, the transmission control information including the other-station transmission control information, the new own-station transmission control information, and the transmission data of the radio communication station 20 in the transmission channel TC1.
  • the demodulator 13 of the radio communication station 10 receives the reception channels RC1-RC2 from the radio communication station 20, and the controller 11 determines the radio communication station 20 based on the reception status of the reception channels RC1-RC2.
  • the modulation scheme and coding rate of transmission data are determined.
  • the modulation scheme and coding rate determined by the modulation unit 12 are included in the transmission channel TC1 and transmitted toward the radio communication station 20.
  • the parts involved in this determination among the radio communication station 10 are only the control unit 11, the modulation unit 12, and the demodulation unit 13.
  • the control unit 11, the modulation unit 12, and the demodulation unit 13 are parts at the physical layer level.
  • the modulation scheme and the coding rate are determined at the physical layer level without involving the layer higher than the physical layer.
  • the radio communication station 10 transmits data to the troposphere scattering path 80 through the transmission channel TC1 and receives data through the reception channel RC1 and the reception channel RC2. Further, as in the case of the wireless communication station 10, the wireless communication station 20 transmits data on one transmission channel and receives data on two reception channels. Without being limited thereto, the wireless communication station may transmit and receive using one transmission channel and a number of channels other than two reception channels.
  • control unit 11 may be referred to as an own station control unit
  • the modulation unit 12 may be referred to as an own station modulation unit
  • the demodulation unit 13 may be referred to as an own station demodulation unit
  • control unit 21 may be referred to as a game control unit
  • the modulation unit 22 may be referred to as a game modulation unit
  • the demodulation unit 23 may be referred to as a game demodulation unit.
  • reception channel received from the wireless communication station 10 may be referred to as a counter reception channel
  • reception channel received from the wireless communication station 20 may be referred to as a home station reception channel
  • transmission channel transmitted by the wireless communication station 10 may be referred to as a local station transmission channel
  • transmission channel transmitted by the wireless communication station 20 may be referred to as a counter transmission channel.
  • FIG. 2 is a block diagram illustrating a modulator according to the first embodiment.
  • FIG. 3 is a diagram illustrating the modulation scheme and the coding rate according to the first embodiment.
  • FIG. 4 is a block diagram illustrating the configuration of a frame according to the first embodiment.
  • the input data is encoded by the encoding unit 121.
  • the processing of the coding unit 121 is performed based on the modulation scheme and the coding rate.
  • the modulation scheme and the coding rate are determined by the own-station transmission control information input from the control unit 11.
  • the modulation scheme and the coding rate can be selected and determined as shown in FIG. 3, for example.
  • the modulation scheme is multi-valued.
  • the coding rate increases as the value of control information increases. Therefore, for example, when the reception condition is bad (when the signal-to-noise ratio is low, etc.), a small value may be set as the value of the control information in the local station transmission control information.
  • a modulation scheme with a low degree of modulation and a low coding rate are set.
  • the data encoded by the encoding unit 121 of the modulation unit 12 is modulated and encoded by the modulation processing unit 124 based on the modulation scheme and the coding rate included in the local transmission control information.
  • the first control information is inserted in the first control information insertion unit 125 for the modulated and encoded data.
  • the first control information includes information indicating the start of a frame, own-station transmission control information, information indicating a frame length, and the presence or absence of known data.
  • the own-station transmission control information includes control information shown in FIG. A predetermined modulation scheme and coding rate can be set by setting a predetermined number in the control information.
  • the second control information insertion unit 126 inserts and outputs the second control information in the data into which the first control information is inserted.
  • the processing of the second control information insertion unit 126 is the same as the processing of the first control information insertion unit 125, so the description will be omitted.
  • known data is inserted in the known data insertion unit 127 as shown in FIG.
  • known data of Y symbol is inserted between data 1 and data 2.
  • the data into which the known data is inserted is output to the baseband waveform shaping unit 129.
  • the data into which the known data is inserted is waveform-shaped by the baseband waveform shaping unit 129 and output to the quadrature modulation unit 130.
  • waveform shaping is waveform shaping with a root raised cosine filter.
  • the waveform-shaped data is converted into a radio frequency f1 which is a radio frequency of one channel by the orthogonal modulation unit 130, and is output as a transmission channel TC1.
  • FIG. 5 is a block diagram illustrating a demodulation unit and a control unit according to the first embodiment.
  • reception data of reception channels RC1 to RC2 are input to the orthogonal demodulation unit 131 for each channel.
  • the input reception data is converted into a baseband by the orthogonal demodulation unit 131, and is output to the baseband waveform shaping unit 132.
  • the same data is loaded in the two receive channels RC1-RC2, and diversity reception is performed using the receive channels RC1-RC2.
  • the data converted to the baseband is waveform-shaped by the baseband waveform shaping unit 132.
  • waveform shaping is waveform shaping with a root raised cosine filter.
  • the waveform-shaped data is output to the equalizer 134.
  • the equalizer 134 corrects distortion of the transmission data generated by the transmission data of the wireless communication station 20 propagating through the troposphere scattering path 80.
  • an adaptive equalizer (not shown) can be used.
  • processing by the adaptive equalizer is performed based on the modulation method detected by the first control information detection unit 135 and the position of the frame.
  • the processing of focusing the components of the leading wave and the lag wave generated by the data propagating through the troposphere scattering path 80 and squaring the amplitude of the data is performed adaptively to the fluctuating fading .
  • data output from the adaptive equalizer is subjected to diversity combining processing. The data output from the equalizer 134 is output to the control unit 11 and the first control information detection unit 135.
  • the first control information detection unit 135 detects the first control information from the data, and performs demodulation and decoding processing on the detected first control information. By performing demodulation and decoding processing on the first control information, the peer transmission control information included in the first control information is detected. Since the transmission control information on the other side includes control information, and the control information includes the modulation scheme and the coding rate, the modulation scheme and the coding rate are extracted from the control information. The extracted modulation scheme and coding rate are output to the demodulation processing unit 138 and the decoding unit 141.
  • the second control information detection unit 136 detects the second control information from the data, and performs demodulation and decoding processing on the detected second control information. By performing demodulation and decoding processing on the second control information, own-station transmission control information included in the second control information is detected.
  • the own-station transmission control information includes control information, and the control information includes a modulation scheme and a coding rate.
  • the detected own-station transmission control information is output to the control unit 11. Further, the output from the second control information detection unit 136 is output to the demodulation processing unit 138.
  • the demodulation processing unit 138 demodulates the data based on the modulation scheme extracted by the first control information detection unit 135.
  • the data subjected to demodulation processing is subjected to error correction processing by the decoding unit 141 based on the coding rate extracted by the first control information detection unit 135.
  • the error-corrected data is output.
  • the control unit 11 calculates (estimates) the carrier to noise ratio, the signal to noise ratio, the reception level, and the error rate of the data output from the equalizer 134.
  • a modulation scheme and coding for inferring the propagation situation of the tropospheric scattering path 80 based on at least one of the calculated carrier to noise ratio, signal to noise ratio, reception level and error rate, and transmitting from the wireless communication station 20 Determine the rate.
  • the control unit 11 may calculate the carrier-to-noise ratio, the signal-to-noise ratio, the reception level, and the error rate of the known data shown in FIG. 4 among the data output from the equalizer 134. Normally, using known data rather than using data can more accurately calculate the carrier to noise ratio, signal to noise ratio, reception level and error rate.
  • control unit 11 calculates the carrier-to-noise ratio, signal-to-noise ratio, reception level and error rate of the data and control information (data 1, data 2, data n, etc.) shown in FIG. You may
  • the control unit 11 may calculate the error correction rate, estimate the propagation state based on the calculated error correction rate, and determine the modulation scheme and the coding rate.
  • the control unit 11 includes the determined modulation scheme and coding rate in the on-station transmission control information, and outputs the on-station transmission control information to the modulation unit 12. In addition, the control unit 11 outputs the own-station transmission control information extracted by the second control information detection unit 136 to the modulation unit 12.
  • the modulation scheme and coding rate to be transmitted by the wireless communication station 20 which is the station B are determined based on the reception condition of the wireless communication station 10 which is the station A.
  • the adaptive coding rate modulation scheme is selected in the propagation situation where multipath fading occurs in the troposphere scattering path 80 by the opposing station B determining the modulation scheme and coding rate transmitted by the station A. It can be realized.
  • the modulation scheme and coding rate of the other station are determined at the physical layer level without involving the upper layer than the physical layer, multipath fading occurs and the reception status of radio waves Adaptive code rate modulation can be controlled at high speed even in out-of-sight communication that changes momentarily.
  • control information (the own-station transmission control information and new counter transmission control information) and transmission data are transmitted on a single same transmission channel by time division multiplexing. This eliminates the need to transmit control information and transmission data on separate transmission channels.
  • modulation scheme and the coding rate have conventionally been fixed and selective, by using the adaptive coding rate modulation scheme, it is possible to effectively utilize the frequency band and optimize the throughput for the band. .
  • FIG. 6 is a block diagram illustrating a radio communication station according to the second embodiment.
  • a system 20s includes a wireless communication station 30 (station A) and a wireless communication station 40 (station B).
  • the wireless communication station 30 includes a demodulator 33, a controller 31, and a modulator 32.
  • the wireless communication station 40 includes a demodulator 43, a controller 41, and a modulator 42.
  • the radio communication station 30 feeds back to the radio communication station 40 the reception status of the reception channels RC31 to RC32 transmitted from the radio communication station 40 and received by the radio communication station 30.
  • the wireless communication station 40 feeds back to the wireless communication station 30 the reception status of the reception channels RC41 to RC42 transmitted from the wireless communication station 30 and received by the wireless communication station 40.
  • the radio communication station 30 performs coding and modulation processing based on the reception status of the reception channels RC41 to 42 included in the reception channels RC31 to RC32. That is, the radio communication station 30 generates own-station transmission control information based on the reception status of the reception channel RC41-42 fed back from the radio communication station 40 included in the reception channel RC31-RC32. The wireless communication station 30 performs encoding and modulation processing based on the generated own-station transmission control information.
  • the demodulation unit 33 performs demodulation and decoding based on the other-station transmission control information included in the reception channels RC31 to RC32 received from the wireless communication station 40 that communicates with the wireless communication station 30 in a face-to-face manner.
  • the control unit 31 acquires from the demodulation unit 33 the reception status at the radio communication station 40 of the transmission channel TC31 which is included in the reception channels RC31 to RC32 and transmitted from the radio communication station 30, and sends the reception status to the modulation unit 32. Transmit
  • the transmission channel TC31 transmitted from the wireless communication station 30 is received by the wireless communication station 40 as reception channels RC41 to RC42 via the troposphere scatterer 80.
  • the modulation unit 32 generates own-station transmission control information related to control of transmission data of the radio communication station 30 based on the reception state (reception state of the reception channels RC41 to RC42) of the transmission channel TC31 at the radio communication station 40. Also, the modulation unit 32 performs encoding and modulation based on the generated own-station transmission control information. The modulation unit 32 transmits its own transmission control information, the reception condition of the reception channels RC31 to RC32 at the radio communication station 30, and the transmission data of the radio communication station 30 in the transmission channel TC31.
  • Embodiment 2 local transmission control information can be generated based on the reception status, and adaptive coding rate modulation can be performed. As a result, it is possible to provide a wireless communication station, system, method and program having a modulator / demodulator capable of performing adaptive coding rate modulation in out-of-sight communication.
  • the present invention has been described as the hardware configuration in the above embodiment, the present invention is not limited to this.
  • the present invention can also realize the processing of each component by causing a central processing unit (CPU) to execute a computer program.
  • CPU central processing unit
  • Non-transitory computer readable media include various types of tangible storage media.
  • Examples of non-transitory computer readable media are magnetic recording media (eg flexible disk, magnetic tape, hard disk drive), magneto-optical recording media (eg magneto-optical disk), CD-ROM (Read Only Memory), CD-R, It includes a CD-R / W, a semiconductor memory (for example, a mask ROM, a PROM (Programmable ROM), an EPROM (Erasable PROM)), a flash ROM, and a RAM (Random Access Memory).
  • the programs may be supplied to the computer by various types of transitory computer readable media.
  • Examples of temporary computer readable media include electrical signals, light signals, and electromagnetic waves.
  • the temporary computer readable medium can provide the program to the computer via a wired communication path such as electric wire and optical fiber, or a wireless communication path.
  • a demodulation unit that performs demodulation and decoding based on the station transmission control information included in the reception channel received from the opposite station communicating with the local station;
  • a control unit that generates new game transmission control information on control of transmission data of the corresponding station based on the reception status of the reception channel;
  • the encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station
  • a modulation unit that transmits transmission data by including it in the transmission channel; Wireless communication station with.
  • the own-station transmission control information includes a modulation scheme, an encoding scheme, and a coding rate of the transmission data of the own station,
  • Each of the counter transmission control information and the new counter transmission control information includes a modulation scheme, a coding scheme, and a coding rate of the transmission data of the counter station.
  • the wireless communication station according to appendix 1.
  • the demodulation unit includes a function capable of correcting distortion of the transmission data generated by the transmission data of the opposite station propagating through a communication path out of line of sight due to tropospheric scattering or mountain diffraction.
  • the wireless communication station according to appendix 1 or 2.
  • the control unit generates a carrier to noise ratio, a signal to noise ratio, a reception level and an error rate of the reception channel based on the reception condition, and the carrier to noise ratio, the signal to noise ratio, the reception level and Generating new game transmission control information related to control of transmission data of the corresponding station based on at least one of the error rates;
  • the radio communication station according to any one of appendices 1 to 3.
  • the modulation unit multiplexes the own-station transmission control information, the new peer transmission control information, and the transmission data of the own station in a frame, and transmits the multiplexed data.
  • the radio communication station according to any one of appendices 1 to 4.
  • the modulation unit transmits a plurality of the transmission channels.
  • the radio communication station according to any one of appendices 1 to 5.
  • a demodulation unit that performs demodulation and decoding based on the station transmission control information included in the reception channel received from the opposite station communicating with the local station;
  • a control unit that is included in the reception channel and transmits the reception status of the transmission channel transmitted from the local station at the other station to a modulation unit;
  • Local transmission control information on control of transmission data of the local station is generated based on the reception status of the transmission channel at the other station, and encoding and modulation are performed based on the local transmission control information, and the local station
  • the modulation unit which transmits transmission control information, the reception status of the reception channel at the own station, and the transmission data of the own station in the transmission channel; Wireless communication station with.
  • a system comprising an own station and a game station in communication with the own station, comprising:
  • the own station is An own station demodulation unit that performs demodulation and decoding based on the opposite station transmission control information included in the own station reception channel received from the opposite station;
  • a self-station control unit that generates new game transmission control information related to control of transmission data of the opposite station based on the reception status of the self-station reception channel;
  • the encoding and modulation are performed based on the own station transmission control information related to the control of the own station transmission data included in the own station reception channel, and the own station transmission control information, the new game transmission control information, and the own station
  • a self-station modulation unit for transmitting the transmission data of the above-mentioned station in a self-station transmission channel
  • the game is A station demodulation unit that performs demodulation and decoding based on the station transmission control information included in the station reception channel received from the station;
  • a station control unit that generates new own station transmission control information related to control of transmission
  • (Appendix 9) Performing demodulation and decoding based on game transmission control information included in the reception channel received from the station communicating with the own station; Generating new game transmission control information related to control of transmission data of the station based on the reception status of the reception channel; The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station Transmitting the transmission data with the transmission channel included; How to have it.
  • the modulation unit transmits the own-station transmission control information, the new peer transmission control information, and the transmission data of the own station in at least one of the plurality of transmission channels.
  • the radio communication station according to appendix 6.
  • the demodulation unit receives a plurality of the reception channels.
  • the radio communication station according to any one of appendices 1 to 6.
  • the control unit generates a carrier-to-noise ratio, a signal-to-noise ratio, a reception level and an error rate for each of the plurality of reception channels based on the reception status of each of the plurality of reception channels, and the plurality of generated carrier-to-noises Generating the new point-to-point transmission control information based on an average value of at least one of a ratio, the signal-to-noise ratio, the reception level, and the error rate;
  • the wireless communication station according to appendix 12.

Abstract

The purpose of the present invention is to provide: a wireless communication station having a modem capable of achieving adaptive coding rate and modulation during over-the-horizon communication; a system; a method; and a program. A wireless communication station (10) pertaining to the present invention is provided with: a demodulation unit (13) for carrying out demodulation and decoding on the basis of counterpart-station transmission control information included in a reception channel; a control unit (11) for generating, on the basis of a reception state, new counterpart-station transmission control information pertaining to control of transmission data of the counterpart-station (20); and a modulation unit (12) for carrying out coding and modulation on the basis of host-station transmission control information included in the reception channel and pertaining to control of transmission data of the host-station (10), and for transmitting the host-station transmission control information, the new counterpart-station transmission control information, and the transmission data together in a transmission channel (TC1). Whereas a modulation method and a coding rate are selected in a fixed manner in the existing state of the art, when this adaptive coding rate and modulation method is adopted, a frequency band can be effectively utilized and throughput can be optimized with respect to the frequency band.

Description

無線通信局、システム、方法及び非一時的なコンピュータ可読媒体Wireless communication station, system, method and non-transitory computer readable medium
　本発明は、無線通信局、システム、方法及びプログラムに関するものであり、特に、見通し外通信において、適応符号化率変調を行うことが可能な変復調器を有する無線通信局、システム、方法及びプログラムに関する。 The present invention relates to a wireless communication station, system, method and program, and more particularly to a wireless communication station, system, method and program having a modulator / demodulator capable of performing adaptive coding rate modulation in non-line-of-sight communication. .
　見通し外通信には、対流圏での散乱を利用して、長距離の見通し外通信を行うものがある。この長距離の見通し外通信では、周波数選択性マルチパスフェージングが発生し、天候や気温の変化により電波の伝搬状況が刻一刻と変化し、これに伴い電波の受信状況も刻一刻と変化する。このような電波の受信状況が刻一刻と変化する見通し外通信において、適応符号化率変調を実現することが求められている。その理由は、適応符号化率変調では、電波の受信状況に応じて伝送速度を切替えることができ、受信状況が悪い場合でも最低限の伝送速度を確保するので通信が途中で切れることがなく、電波を効率的に使用できるからである。 There are some out-of-sight communications that use long-range out-of-sight communications using scatter in the troposphere. In this long-distance non-line-of-sight communication, frequency selective multipath fading occurs, and the propagation condition of the radio wave changes every moment due to the change of the weather or the air temperature, and the reception condition of the radio wave changes accordingly every moment. In non-line-of-sight communication in which the reception condition of such radio waves changes every moment, it is required to realize adaptive coding rate modulation. The reason is that in adaptive coding rate modulation, the transmission rate can be switched according to the reception condition of radio waves, and even if the reception condition is poor, the minimum transmission rate is secured, so communication does not break off halfway. This is because radio waves can be used efficiently.
　尚、見通し外通信を、ＯＨ(Over the Horizon)通信と称することもある。また、適応符号化率変調方式を、ＡＣＭ(Adaptive Coding and Modulation)と称することもある。 Note that non-line-of-sight communication may be referred to as OH (Over the Horizon) communication. Also, the adaptive coding rate modulation scheme may be referred to as ACM (Adaptive Coding and Modulation).
　特許文献１には、複数の通信経路を同時に利用して無線通信を行う無線通信システムにおいて、基地局は、端末との通信に用いる通信経路を決定する通信経路決定部と、決定された通信経路のうち最良の通信状況にある通信経路を判定する最良経路判定部と、決定された通信経路毎のデータ送信量の割合を算出する割合算出部と、判定された最良の通信状況にある通信経路を介して端末に制御信号の送信を行うとともに、最良の通信状況にある通信経路を含む複数の通信経路を介して、算出された通信経路毎のデータ送信量に基づき端末にデータの送信を行う基地局側送信部とを有し、端末は、制御信号及びデータの受信を行う端末側受信部を有する、ことが開示されている。特許文献１には、複数の通信経路のそれぞれの受信状況に基づいて、通信に使用する通信経路を決定し、該決定された伝送路で伝送するデータ量を決定することが開示されている。 According to Patent Document 1, in a wireless communication system that performs wireless communication by simultaneously using a plurality of communication routes, a base station determines a communication route determining unit that determines a communication route used for communication with a terminal, and the determined communication route. And a ratio calculation unit that calculates the ratio of the amount of data transmission for each determined communication route, and the communication route in the determined best communication condition. Transmits a control signal to the terminal via the communication path, and transmits data to the terminal based on the calculated data transmission amount for each communication path via a plurality of communication paths including the communication path in the best communication condition. It is disclosed that the mobile terminal has a base station transmitter, and the terminal has a terminal receiver that receives control signals and data. Patent Document 1 discloses that a communication path to be used for communication is determined based on the reception status of each of a plurality of communication paths, and the amount of data to be transmitted on the determined transmission path is determined.
　また、特許文献１には、基地局は、通信経路のそれぞれについての通信の変調方式を決定する変調方式決定部と、通信経路のそれぞれについての符号化率を決定する符号化率決定部と、を更に備え、変調方式決定部及び符号化率決定部は、端末から送信される応答信号に含まれる受信状況を示す情報に基づきそれぞれ変調方式及び符号化率を決定することが開示されている。 Further, in Patent Document 1, a base station includes a modulation scheme determination unit that determines a modulation scheme of communication for each of the communication paths, and a coding rate determination unit that determines coding rates for each of the communication paths. It is disclosed that the modulation scheme determination unit and the coding rate determination unit determine the modulation scheme and the coding rate based on the information indicating the reception status included in the response signal transmitted from the terminal.
　しかしながら、特許文献１には、見通し外通信の単一の通信路で、同一のデータを自局の送信制御情報と対局の送信制御情報と共に送信チャンネルに含めて送信すること、及び、該送信チャンネルに含まれる制御情報に基づいて該同一のデータを受信し、復調及び復号することは開示されていない。 However, according to Patent Document 1, transmitting the same data together with the transmission control information of the own station and the transmission control information of the other station in a transmission channel in a single communication channel of non-line-of-sight communication, and transmitting the transmission channel It is not disclosed to receive, demodulate and decode the same data based on the control information contained in.
特開２０１６－２０８３４６号公報JP, 2016-208346, A
　上述のように、見通し外通信において、同一のデータを送信チャンネルで適応符号化率変調して送信し、該同一のデータを受信し、復調及び復号することが難しいという問題があった。 As described above, in non-line-of-sight communication, there is a problem that it is difficult to adaptively modulate the same data on a transmission channel and transmit it, receive the same data, and demodulate and decode.
　本発明は、このような問題を解決するためになされたものであり、見通し外通信において、適応符号化率変調を行うことが可能な変復調器を有する無線通信局、システム、方法及びプログラムを提供することを目的とする。 The present invention has been made to solve such a problem, and provides a radio communication station, system, method and program having a modem capable of performing adaptive coding rate modulation in non-line-of-sight communication. The purpose is to
　本発明に係る無線通信局は、
　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行う復調部と、
　前記受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成する制御部と、
　前記受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを送信チャンネルに含めて送信する変調部と、
　を備える。 The wireless communication station according to the present invention is
A demodulation unit that performs demodulation and decoding based on the station transmission control information included in the reception channel received from the opposite station communicating with the local station;
A control unit that generates new game transmission control information on control of transmission data of the corresponding station based on the reception status of the reception channel;
The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station A modulation unit that transmits transmission data by including it in the transmission channel;
Equipped with
　本発明に係る無線通信局は、
　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行う復調部と、
　前記受信チャンネルに含まれ、前記自局から送信された送信チャンネルの前記対局での受信状況を変調部へ伝送する制御部と、
　前記送信チャンネルの前記対局での受信状況に基づいて前記自局の送信データの制御に関する自局送信制御情報を生成し、前記自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記受信チャンネルの前記自局での受信状況と前記自局の前記送信データとを前記送信チャンネルに含めて送信する前記変調部と、
　を備える。 The wireless communication station according to the present invention is
A demodulation unit that performs demodulation and decoding based on the station transmission control information included in the reception channel received from the opposite station communicating with the local station;
A control unit that is included in the reception channel and transmits the reception status of the transmission channel transmitted from the local station at the other station to a modulation unit;
Local transmission control information on control of transmission data of the local station is generated based on the reception status of the transmission channel at the other station, and encoding and modulation are performed based on the local transmission control information, and the local station The modulation unit which transmits transmission control information, the reception status of the reception channel at the own station, and the transmission data of the own station in the transmission channel;
Equipped with
　本発明に係る無線通信システムは、
　自局と前記自局と対向して通信する対局とを備えたシステムであって、
　前記自局は、
　前記対局から受信した自局受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行う自局復調部と、
　前記自局受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成する自局制御部と、
　前記自局受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを自局送信チャンネルに含めて送信する自局変調部と、を有し、
　前記対局は、
　前記自局から受信した対局受信チャンネルに含まれる前記自局送信制御情報に基づいて復調及び復号化を行う対局復調部と、
　前記対局受信チャンネルの受信状況に基づいて前記自局の送信データの制御に関する新たな自局送信制御情報を生成する対局制御部と、
　前記対局受信チャンネルに含まれる前記対局の送信データの制御に関する対局送信制御情報に基づいて符号化及び変調を行い、前記対局送信制御情報と前記新たな自局送信制御情報と前記対局の前記送信データとを対局送信チャンネルに含めて送信する対局変調部と、を有する。 A wireless communication system according to the present invention is
A system comprising an own station and a game station in communication with the own station, comprising:
The own station is
An own station demodulation unit that performs demodulation and decoding based on the opposite station transmission control information included in the own station reception channel received from the opposite station;
A self-station control unit that generates new game transmission control information related to control of transmission data of the opposite station based on the reception status of the self-station reception channel;
The encoding and modulation are performed based on the own station transmission control information related to the control of the own station transmission data included in the own station reception channel, and the own station transmission control information, the new game transmission control information, and the own station A self-station modulation unit for transmitting the transmission data of the above-mentioned station in a self-station transmission channel, and
The game is
A station demodulation unit that performs demodulation and decoding based on the station transmission control information included in the station reception channel received from the station;
A station control unit that generates new own station transmission control information related to control of transmission data of the own station based on the reception status of the opposite station reception channel;
The encoding and modulation are performed based on the counter transmission control information related to the control of the transmission data of the counterpart contained in the reception reception channel, and the transmission control information of the counterpart, the new own transmission control information and the transmission data of the counterpart And a counter modulation unit for transmitting the signal with the counter transmission channel included.
　本発明に係る方法は、
　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行うステップと、
　前記受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成するステップと、
　前記受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを送信チャンネルに含めて送信するステップと、
　を備える。 The method according to the invention is
Performing demodulation and decoding based on game transmission control information included in the reception channel received from the station communicating with the own station;
Generating new game transmission control information related to control of transmission data of the station based on the reception status of the reception channel;
The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station Transmitting the transmission data with the transmission channel included;
Equipped with
　本発明に係るプログラムは、
　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行うステップと、
　前記受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成するステップと、
　前記受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを送信チャンネルに含めて送信するステップと、
　をコンピュータに実行させる。 The program according to the present invention is
Performing demodulation and decoding based on game transmission control information included in the reception channel received from the station communicating with the own station;
Generating new game transmission control information related to control of transmission data of the station based on the reception status of the reception channel;
The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station Transmitting the transmission data with the transmission channel included;
On a computer.
　本発明によれば、見通し外通信において、適応符号化率変調を行うことが可能な変復調器を有する無線通信局、システム、方法及びプログラムを提供することができる。 According to the present invention, it is possible to provide a wireless communication station, system, method and program having a modulator / demodulator capable of performing adaptive coding rate modulation in out-of-sight communication.
実施の形態１に係る無線通信局を例示するブロック図である。FIG. 1 is a block diagram illustrating a wireless communication station according to Embodiment 1; 実施の形態１に係る変調部を例示するブロック図である。FIG. 2 is a block diagram illustrating a modulation unit according to Embodiment 1; 実施の形態１に係る変調方式と符号化率を例示する図である。FIG. 2 is a diagram illustrating a modulation scheme and a coding rate according to Embodiment 1. 実施の形態１に係るフレームの構成を例示するブロック図である。FIG. 2 is a block diagram illustrating the configuration of a frame according to Embodiment 1; 実施の形態１に係る復調部と制御部を例示するブロック図である。FIG. 2 is a block diagram illustrating a demodulation unit and a control unit according to the first embodiment. 実施の形態２に係る無線通信局を例示するブロック図である。FIG. 7 is a block diagram illustrating a wireless communication station according to Embodiment 2;
　以下、図面を参照して本発明の実施の形態について説明する。各図面において、同一又は対応する要素には同一の符号が付されており、説明の明確化のため、必要に応じて重複説明を省略する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding elements are denoted by the same reference numerals, and redundant description will be omitted as appropriate for the sake of clarity.
　［実施の形態１］
　図１は、実施の形態１に係る無線通信局を例示するブロック図である。 First Embodiment
FIG. 1 is a block diagram illustrating a radio communication station according to the first embodiment.
　図１に示すように、実施の形態１に係るシステム１０ｓは、Ａ局とＢ局とを備える。Ａ局を無線通信局１０と称し、Ｂ局を無線通信局２０と称する。無線通信局１０（Ａ局）と無線通信局２０（Ｂ局）との間には対流圏散乱路８０が存在する。対流圏散乱路８０は、対流圏散乱による見通し外の通信路である。無線通信局１０は、対流圏散乱路８０を介して無線通信局２０と通信する。 As shown in FIG. 1, the system 10s according to the first embodiment includes A station and B station. The station A is referred to as a wireless communication station 10, and the station B is referred to as a wireless communication station 20. A tropospheric scatter path 80 exists between the wireless communication station 10 (station A) and the wireless communication station 20 (station B). The tropospheric scatterer 80 is a non-line-of-sight communication path due to tropospheric scatterers. The wireless communication station 10 communicates with the wireless communication station 20 via the troposphere scatterer 80.
　尚、無線通信局１０や無線通信局２０の変調方式として、ＯＦＤＭ(Orthogonal Frequency Division Multiplexing)を適用することが可能である。 Note that OFDM (Orthogonal Frequency Division Multiplexing) can be applied as a modulation method of the wireless communication station 10 or the wireless communication station 20.
　移動体通信ではＬＴＥ(Long Term Evolution)で使われており、衛星通信ではＤＶＢ－Ｓ２(Digital Video Broadcasting - Satellite Second Generation)で使われている適応符号化率変調方式の技術がある。実施の形態１に係る装置（無線通信局）は、この適応符号化率変調方式の技術を見通し外通信向け変復調器に組込んだ装置である。 In mobile communication, there is an adaptive coding rate modulation technique used in LTE (Long Term Evolution) and in satellite communication DVB-S2 (Digital Video Broadcasting-Satellite Second Generation). The apparatus (wireless communication station) according to the first embodiment is an apparatus in which the technique of the adaptive coding rate modulation method is incorporated in a modem for line-of-sight communication.
　Ａ局である無線通信局１０は、変復調器１０ｍを備え、変復調器１０ｍは、制御部１１と変調部１２と復調部１３とを備える。制御部１１は、送受信の符号化率及び変調方式等を制御し、変調部１２は、データを符号化及び変調して送信する。復調部１３は、Ｂ局である無線通信局２０からのデータを受信し、受信したデータを復調及び復号化する。無線通信局２０は、無線通信局１０と対向して通信する無線通信局である。よって、無線通信局１０を自局と称し、無線通信局２０を対局と称することもある。 The radio communication station 10, which is a station A, includes a modulator-demodulator 10m, and the modulator-demodulator 10m includes a controller 11, a modulator 12, and a demodulator 13. The control unit 11 controls transmission / reception coding rate, modulation scheme and the like, and the modulation unit 12 encodes and modulates data to transmit. The demodulator 13 receives data from the wireless communication station 20 which is station B, and demodulates and decodes the received data. The wireless communication station 20 is a wireless communication station that communicates in opposition to the wireless communication station 10. Therefore, the wireless communication station 10 may be referred to as a home station, and the wireless communication station 20 may be referred to as a game.
　無線通信局１０は、さらに、無線通信局２０と対流圏散乱路８０を介して通信するための複数のアンテナ（図示しない）や無線インターフェース（図示しない）等を備える。無線通信局１０の複数のアンテナや無線インターフェースは、一般的なものなので、これらの説明は省略する。 The wireless communication station 10 further includes a plurality of antennas (not shown), a wireless interface (not shown), and the like for communicating with the wireless communication station 20 via the troposphere scattering path 80. The plurality of antennas and the wireless interface of the wireless communication station 10 are general ones, and thus the description thereof is omitted.
　無線通信局１０は、データを、送信チャンネルＴＣ１で対流圏散乱路８０を介して無線通信局２０に送信する。無線通信局２０は、無線通信局１０から送信されたデータを、受信チャンネルＲＣ１と受信チャンネルＲＣ２で受信する。ダイバーシティ受信をするため、受信チャンネルの数が送信チャンネルの数よりも多い。 The wireless communication station 10 transmits data to the wireless communication station 20 via the troposphere scatterer 80 on the transmission channel TC1. The wireless communication station 20 receives data transmitted from the wireless communication station 10 on the reception channel RC1 and the reception channel RC2. In order to perform diversity reception, the number of reception channels is larger than the number of transmission channels.
　一方、無線通信局２０は、データを、送信チャンネルＴＣ１で対流圏散乱路８０を介して無線通信局１０に送信する。無線通信局１０は、無線通信局２０から送信されたデータを、受信チャンネルＲＣ１と受信チャンネルＲＣ２で受信する。 On the other hand, the wireless communication station 20 transmits data to the wireless communication station 10 via the troposphere scatterer 80 on the transmission channel TC1. The wireless communication station 10 receives data transmitted from the wireless communication station 20 on the reception channel RC1 and the reception channel RC2.
　無線通信局１０の復調部１３は、無線通信局１０と対向して通信する無線通信局２０から受信した受信チャンネルＲＣ１－ＲＣ２に含まれる対局送信制御情報に基づいて、受信データの復調及び復号化を行う。復調部１３は、このように、複数の受信チャンネルＲＣ１－ＲＣ２を受信してもよい。 The demodulation unit 13 of the wireless communication station 10 demodulates and decodes the received data based on the transmission control information on the other station included in the reception channels RC1-RC2 received from the wireless communication station 20 communicating with the wireless communication station 10 in the opposite direction. I do. The demodulator 13 may thus receive a plurality of receive channels RC1-RC2.
　具体的には、復調部１３は、受信の際、受信チャンネルＲＣ１－ＲＣ２に含まれる対局送信制御情報（自局受信制御情報）を抽出する。対局送信制御情報には、無線通信局２０から送信され無線通信局１０が受信したデータの変調方式と符号化率が含まれる。復調部１３は、対局送信制御情報に含まれる変調方式と符号化率に基づいて受信したデータの復調及び復号化を行う。 Specifically, at the time of reception, the demodulation unit 13 extracts counter transmission control information (self-station reception control information) included in the reception channels RC1 and RC2. The counter transmission control information includes the modulation scheme and the coding rate of data transmitted from the wireless communication station 20 and received by the wireless communication station 10. The demodulation unit 13 demodulates and decodes the received data based on the modulation scheme and the coding rate included in the peer transmission control information.
　無線通信局２０から送信され無線通信局１０で受信した受信チャンネルＲＣ１－ＲＣ２のデータには、対局送信制御情報が含まれる。対局送信制御情報は、対局である無線通信局２０から送信されたデータの制御に関する情報であって、該データの変調方式と符号化率が含まれる。 The data of the reception channels RC1 to RC2 transmitted from the wireless communication station 20 and received by the wireless communication station 10 includes the point-to-point transmission control information. The game transmission control information is information on control of data transmitted from the radio communication station 20 which is the game, and includes a modulation scheme and a coding rate of the data.
　無線通信局１０は、データを受信の際、この変調方式と符号化率に基づいてデータを復調及び復号化する。このように、対局送信制御情報は、データを受信し復調及び復号化する際に使用されるので、自局受信制御情報と称することもある。 When receiving data, the wireless communication station 10 demodulates and decodes the data based on the modulation scheme and the coding rate. As described above, since the opposite station transmission control information is used when receiving, demodulating and decoding data, it may be referred to as own station reception control information.
　また、復調部１３は、無線通信局２０から受信した受信チャンネルＲＣ１－ＲＣ２に含まれる自局送信制御情報を抽出する。また、復調部１３は、無線通信局２０から受信した受信チャンネルＲＣ１－ＲＣ２の受信状況と、抽出した自局送信制御情報とを、制御部１１へ出力する。復調部１３は、無線通信局２０の送信データが対流圏散乱、又は、山岳回折による見通し外の通信路を伝搬することによって生じた送信データの歪を補正することができる機能を含む。この補正することができる機能を有するものとしては、例えば、適応等化器が挙げられる。 Further, the demodulation unit 13 extracts the own-station transmission control information included in the reception channels RC1 to RC2 received from the wireless communication station 20. Further, the demodulation unit 13 outputs, to the control unit 11, the reception status of the reception channels RC1-RC2 received from the radio communication station 20 and the extracted self-station transmission control information. The demodulation unit 13 includes a function capable of correcting distortion of the transmission data generated by the transmission data of the radio communication station 20 propagating through the communication line out of line of sight due to tropospheric scattering or mountain diffraction. For example, an adaptive equalizer may be mentioned as one having such a function that can be corrected.
　制御部１１は、復調部１３から出力された受信チャンネルＲＣ１－ＲＣ２の受信状況に基づいて、無線通信局２０の送信データの制御に関する新たな対局送信制御情報を生成する。 The control unit 11 generates new game transmission control information related to control of transmission data of the radio communication station 20 based on the reception status of the reception channels RC1 to RC2 output from the demodulation unit 13.
　制御部１１は、受信チャンネルＲＣ１－ＲＣ２の受信状況が悪い場合、変調度が低い変調方式と低い符号化率が設定された新たな対局送信制御情報を生成する。制御部１１は、受信チャンネルＲＣ１－ＲＣ２の受信状況が良い場合、変調度が高い変調方式（多値変調）と高い符号化率が設定された新たな対局送信制御情報を生成する。 When the reception condition of the reception channels RC1 to RC2 is bad, the control unit 11 generates new game transmission control information in which a modulation scheme having a low degree of modulation and a low coding rate are set. When the reception condition of the reception channels RC1 to RC2 is good, the control unit 11 generates new point-to-point transmission control information in which a modulation scheme (multi-level modulation) having a high modulation factor and a high coding rate are set.
　制御部１１は、受信状況に基づいて受信チャンネルＲＣ１－ＲＣ２のキャリア対雑音比、信号対雑音比、受信レベル及び誤り率を生成する。制御部１１は、キャリア対雑音比、信号対雑音比、受信レベル及び誤り率の少なくともいずれか１つに基づいて無線通信局２０の送信データの制御に関する新たな対局送信制御情報を生成する。 The control unit 11 generates the carrier to noise ratio, the signal to noise ratio, the reception level and the error rate of the reception channels RC1 to RC2 based on the reception situation. The control unit 11 generates new transmission control information on control of transmission data of the radio communication station 20 based on at least one of the carrier to noise ratio, the signal to noise ratio, the reception level and the error rate.
　制御部１１は、信号対雑音比が低い場合、変調度が低い変調方式と低い符号化率が設定された新たな対局送信制御情報を生成する。制御部１１は、信号対雑音比が高い場合、変調度が高い変調方式（多値変調）と高い符号化率が設定された新たな対局送信制御情報を生成する。 When the signal-to-noise ratio is low, the control unit 11 generates new point-to-point transmission control information in which a modulation scheme with a low degree of modulation and a low coding rate are set. When the signal-to-noise ratio is high, the control unit 11 generates new point-to-point transmission control information in which a modulation scheme (multi-level modulation) with a high degree of modulation and a high coding rate are set.
　尚、制御部１１は、複数の受信チャンネルＲＣ１－ＲＣ２のそれぞれの受信状況に基づいて、それぞれにキャリア対雑音比、信号対雑音比、受信レベル及び誤り率を生成する。制御部１１は、生成した複数のキャリア対雑音比、信号対雑音比、受信レベル及び誤り率の少なくともいずれか１つの平均値に基づいて、新たな対局送信制御情報を生成してもよい。 The control unit 11 generates a carrier-to-noise ratio, a signal-to-noise ratio, a reception level and an error rate for each of the plurality of reception channels RC1-RC2 based on the reception status. The control unit 11 may generate new transmission control information on the basis of the plurality of generated carrier-to-noise ratios, the signal-to-noise ratio, the reception level, and the average value of at least one of the error rates.
　新たな対局送信制御情報は、無線通信局２０の送信データ（無線通信局２０から送信される送信データ）の変調方式と符号化方式と符号化率を含む。また、自局送信制御情報は、無線通信局１０の送信データ（無線通信局１０から送信される送信データ）の変調方式と符号化方式と符号化率を含む。 The new transmission control information on the other side includes the modulation scheme, the coding scheme, and the coding rate of the transmission data of the wireless communication station 20 (transmission data transmitted from the wireless communication station 20). The own-station transmission control information also includes the modulation scheme, the coding scheme, and the coding rate of transmission data of the wireless communication station 10 (transmission data transmitted from the wireless communication station 10).
　符号化方式の１つの例としては、ＢＣＨ符号化やＬＤＰＣ(Low Density Parity Check)符号化が挙げられる。 One example of the coding scheme is BCH coding or Low Density Parity Check (LDPC) coding.
　制御部１１は、生成した対局送信制御情報と、復調部１３から取得した自局送信制御情報と、を変調部１２へ出力する。 The control unit 11 outputs, to the modulation unit 12, the generated game transmission control information and the local transmission control information acquired from the demodulation unit 13.
　変調部１２は、無線通信局２０からの受信チャンネルＲＣ１－ＲＣ２に含まれる無線通信局１０の送信データの制御に関する自局送信制御情報に基づいて、送信データの符号化及び変調を行う。すなわち、変調部１２は、制御部１１から取得した自局送信制御情報から変調方式と符号化率を決定し、送信データの符号化及び変調を行う。 The modulation unit 12 encodes and modulates transmission data based on own-station transmission control information related to control of transmission data of the radio communication station 10 included in the reception channels RC1 to RC2 from the radio communication station 20. That is, the modulation unit 12 determines the modulation scheme and the coding rate from the own-station transmission control information acquired from the control unit 11, and performs transmission data encoding and modulation.
　変調部１２は、自局送信制御情報と新たな対局送信制御情報と無線通信局１０の送信データとを、送信チャンネルＴＣ１に含めて無線通信局２０に送信する。送信チャンネルＴＣ１は、対流圏散乱路８０へ送信される。 The modulation unit 12 includes the transmission control information of the own station, the new transmission control information on the other station, and the transmission data of the radio communication station 10 in the transmission channel TC1 and transmits the transmission channel TC1 to the radio communication station 20. The transmission channel TC1 is transmitted to the tropospheric scatterer 80.
　尚、変調部１２は、自局送信制御情報と新たな対局送信制御情報と無線通信局１０の送信データとをフレーム内に多重化して送信してもよい。すなわち、変調部１２は、自局送信制御情報と新たな対局送信制御情報と送信データとを、時分割多重して送信してもよい。 Note that the modulation unit 12 may multiplex and transmit its own station transmission control information, new counter transmission control information, and transmission data of the wireless communication station 10 in a frame. That is, the modulation unit 12 may time division multiplex and transmit own-station transmission control information, new counter transmission control information, and transmission data.
　時分割多重することにより、制御情報（自局送信制御情報と新たな対局送信制御情報）と送信データを単一の同一の送信チャンネルに乗せることができ、制御情報と送信データとを別の送信チャンネルで送信する必要がなくなる。 By time division multiplexing, the control information (the own station transmission control information and the new counter transmission control information) and the transmission data can be carried on a single same transmission channel, and the control information and the transmission data are transmitted separately. There is no need to send on the channel.
　一方で、無線通信局２０は、無線通信局１０と同様な構成を有する。無線通信局２０は、制御部２１と変調部２２と復調部２３とを備える。 On the other hand, the wireless communication station 20 has the same configuration as the wireless communication station 10. The wireless communication station 20 includes a control unit 21, a modulation unit 22, and a demodulation unit 23.
　無線通信局２０の復調部２３は、無線通信局１０から受信した受信チャンネルＲＣ１－ＲＣ２に含まれる自局送信制御情報に基づいて復調及び復号化を行う。 The demodulation unit 23 of the wireless communication station 20 performs demodulation and decoding based on the own station transmission control information included in the reception channels RC1 to RC2 received from the wireless communication station 10.
　制御部２１は、無線通信局１０から受信した受信チャンネルＲＣ１－ＲＣ２の受信状況に基づいて無線通信局１０の送信データの制御に関する新たな自局送信制御情報を生成する。 The control unit 21 generates new own-station transmission control information related to control of transmission data of the radio communication station 10 based on the reception status of the reception channels RC1-RC2 received from the radio communication station 10.
　変調部２２は、無線通信局１０から受信した受信チャンネルＲＣ１－ＲＣ２に含まれる無線通信局２０の送信データの制御に関する対局送信制御情報に基づいて符号化及び変調を行う。また、変調部２２は、対局送信制御情報と新たな自局送信制御情報と無線通信局２０の送信データとを、送信チャンネルＴＣ１に含めて無線通信局１０に送信する。 The modulation unit 22 performs encoding and modulation based on the transmission control information on the other side regarding control of transmission data of the wireless communication station 20 included in the reception channels RC1 to RC2 received from the wireless communication station 10. In addition, the modulation unit 22 transmits, to the radio communication station 10, the transmission control information including the other-station transmission control information, the new own-station transmission control information, and the transmission data of the radio communication station 20 in the transmission channel TC1.
　実施の形態１においては、無線通信局１０の復調部１３が無線通信局２０からの受信チャンネルＲＣ１－ＲＣ２を受信し、制御部１１が受信チャンネルＲＣ１－ＲＣ２の受信状況に基づいて無線通信局２０の送信データの変調方式及び符号化率を決定する。そして、変調部１２が決定された変調方式及び符号化率を送信チャンネルＴＣ１に含めて無線通信局２０に向けて送信する。 In the first embodiment, the demodulator 13 of the radio communication station 10 receives the reception channels RC1-RC2 from the radio communication station 20, and the controller 11 determines the radio communication station 20 based on the reception status of the reception channels RC1-RC2. The modulation scheme and coding rate of transmission data are determined. Then, the modulation scheme and coding rate determined by the modulation unit 12 are included in the transmission channel TC1 and transmitted toward the radio communication station 20.
　対局である無線通信局２０の変調方式及び符号化率を決定するに際して、無線通信局１０のうち、この決定に関与した部位は、制御部１１と変調部１２と復調部１３だけである。これら制御部１１と変調部１２と復調部１３部は、物理層レベルの部位である。このように、実施の形態１においては、物理層よりも上位層は関与せずに、物理層レベルで変調方式及び符号化率を決定する。物理層レベルで変調方式及び符号化率を決定することにより、マルチパスフェージングが発生し電波の受信状況が刻一刻と変化する見通し外通信においても高速に適応符号化率変調を制御することができる。 In determining the modulation scheme and the coding rate of the radio communication station 20 which is the opposite station, the parts involved in this determination among the radio communication station 10 are only the control unit 11, the modulation unit 12, and the demodulation unit 13. The control unit 11, the modulation unit 12, and the demodulation unit 13 are parts at the physical layer level. Thus, in the first embodiment, the modulation scheme and the coding rate are determined at the physical layer level without involving the layer higher than the physical layer. By determining the modulation scheme and coding rate at the physical layer level, it is possible to control adaptive coding rate modulation at high speed even in out-of-sight communication where multi-path fading occurs and radio reception status changes every moment. .
　尚、実施の形態１においては、無線通信局１０は、送信チャンネルＴＣ１でデータを対流圏散乱路８０に送信し、受信チャンネルＲＣ１と受信チャンネルＲＣ２でデータを受信する例を示した。また、無線通信局２０も無線通信局１０と同様に、１つの送信チャンネルでデータを送信し、２つの受信チャンネルでデータを受信する例を示した。これには限定されずに、無線通信局は、１つの送信チャンネル、２つの受信チャンネル以外の数のチャンネルを使用して送受信をしてもよい。 In the first embodiment, the radio communication station 10 transmits data to the troposphere scattering path 80 through the transmission channel TC1 and receives data through the reception channel RC1 and the reception channel RC2. Further, as in the case of the wireless communication station 10, the wireless communication station 20 transmits data on one transmission channel and receives data on two reception channels. Without being limited thereto, the wireless communication station may transmit and receive using one transmission channel and a number of channels other than two reception channels.
　また、制御部１１を自局制御部と称し、変調部１２を自局変調部と称し、復調部１３を自局復調部と称することもある。また、制御部２１を対局制御部と称し、変調部２２を対局変調部と称し、復調部２３を対局復調部と称することもある。 Also, the control unit 11 may be referred to as an own station control unit, the modulation unit 12 may be referred to as an own station modulation unit, and the demodulation unit 13 may be referred to as an own station demodulation unit. Also, the control unit 21 may be referred to as a game control unit, the modulation unit 22 may be referred to as a game modulation unit, and the demodulation unit 23 may be referred to as a game demodulation unit.
　また、無線通信局１０から受信した受信チャンネルを対局受信チャンネルと称することもあり、無線通信局２０から受信した受信チャンネルを自局受信チャンネルと称することもある。また、無線通信局１０が送信した送信チャンネルを自局送信チャンネルと称することもあり、無線通信局２０が送信した送信チャンネルを、対局送信チャンネルと称することもある。 Also, the reception channel received from the wireless communication station 10 may be referred to as a counter reception channel, and the reception channel received from the wireless communication station 20 may be referred to as a home station reception channel. Also, the transmission channel transmitted by the wireless communication station 10 may be referred to as a local station transmission channel, and the transmission channel transmitted by the wireless communication station 20 may be referred to as a counter transmission channel.
　図２は、実施の形態１に係る変調部を例示するブロック図である。
　図３は、実施の形態１に係る変調方式と符号化率を例示する図である。
　図４は、実施の形態１に係るフレームの構成を例示するブロック図である。 FIG. 2 is a block diagram illustrating a modulator according to the first embodiment.
FIG. 3 is a diagram illustrating the modulation scheme and the coding rate according to the first embodiment.
FIG. 4 is a block diagram illustrating the configuration of a frame according to the first embodiment.
　図２に示すように、入力されたデータは、符号化部１２１により符号化される。符号化部１２１の処理は、変調方式及び符号化率に基づいて行われる。変調方式及び符号化率は、制御部１１から入力された自局送信制御情報により決定される。変調方式及び符号化率は、例えば、図３に示すようなものを選択し決定することができる。 As shown in FIG. 2, the input data is encoded by the encoding unit 121. The processing of the coding unit 121 is performed based on the modulation scheme and the coding rate. The modulation scheme and the coding rate are determined by the own-station transmission control information input from the control unit 11. The modulation scheme and the coding rate can be selected and determined as shown in FIG. 3, for example.
　図３においては、制御情報の値が大きくなるに従って変調方式が多値化する。また、制御情報の値が大きくなるに従って符号化率が高くなる。よって、例えば、受信状況が悪い場合（信号対雑音比が低い場合等）、自局送信制御情報には、制御情報の値として小さな値を設定すればよい。それにより、対局である無線通信局２０には、変調度が低い変調方式と低い符号化率が設定される。 In FIG. 3, as the value of the control information increases, the modulation scheme is multi-valued. Also, the coding rate increases as the value of control information increases. Therefore, for example, when the reception condition is bad (when the signal-to-noise ratio is low, etc.), a small value may be set as the value of the control information in the local station transmission control information. As a result, in the radio communication station 20 which is the station, a modulation scheme with a low degree of modulation and a low coding rate are set.
　図２に戻り、変調部１２の説明を続ける。変調部１２の符号化部１２１により符号化されたデータは、変調処理部１２４にて自局送信制御情報に含まれる変調方式及び符号化率に基づいて変調及び符号化される。 Returning to FIG. 2, the description of the modulation unit 12 is continued. The data encoded by the encoding unit 121 of the modulation unit 12 is modulated and encoded by the modulation processing unit 124 based on the modulation scheme and the coding rate included in the local transmission control information.
　変調及び符号化されたデータは、第１制御情報挿入部１２５にて第１制御情報が挿入される。第１制御情報は、フレームの開始を示す情報や自局送信制御情報やフレーム長や既知データの有無を示す情報が含まれる。自局送信制御情報には、図３に示す制御情報が含まれる。制御情報に所定の番号を設定することで、所定の変調方式及び符号化率を設定することができる。 The first control information is inserted in the first control information insertion unit 125 for the modulated and encoded data. The first control information includes information indicating the start of a frame, own-station transmission control information, information indicating a frame length, and the presence or absence of known data. The own-station transmission control information includes control information shown in FIG. A predetermined modulation scheme and coding rate can be set by setting a predetermined number in the control information.
　第１制御情報が挿入されたデータは、次に、第２制御情報挿入部１２６にて第２制御情報が挿入され出力される。第２制御情報挿入部１２６の処理は、第１制御情報挿入部１２５の処理と同様であるため説明は省略する。 Next, the second control information insertion unit 126 inserts and outputs the second control information in the data into which the first control information is inserted. The processing of the second control information insertion unit 126 is the same as the processing of the first control information insertion unit 125, so the description will be omitted.
　第２制御情報が挿入されたデータは、次に、既知データ挿入部１２７にて、図４に示すように既知データが挿入される。例えば、データ１とデータ２との間にＹシンボルの既知データが挿入される。 Next, as the data into which the second control information is inserted, known data is inserted in the known data insertion unit 127 as shown in FIG. For example, known data of Y symbol is inserted between data 1 and data 2.
　既知データが挿入されたデータは、ベースバンド波形整形部１２９に出力される。 The data into which the known data is inserted is output to the baseband waveform shaping unit 129.
　既知データが挿入されたデータは、ベースバンド波形整形部１２９にて、波形整形され、直交変調部１３０へ出力される。波形整形の１つの例として、ルート・レイズド・コサイン・フィルタで波形整形することが挙げられる。 The data into which the known data is inserted is waveform-shaped by the baseband waveform shaping unit 129 and output to the quadrature modulation unit 130. One example of waveform shaping is waveform shaping with a root raised cosine filter.
　波形整形されたデータは、直交変調部１３０にて、１チャンネルの無線周波数である無線周波数ｆ１へ変換され、送信チャンネルＴＣ１として出力される。 The waveform-shaped data is converted into a radio frequency f1 which is a radio frequency of one channel by the orthogonal modulation unit 130, and is output as a transmission channel TC1.
　図５は、実施の形態１に係る復調部と制御部を例示するブロック図である。 FIG. 5 is a block diagram illustrating a demodulation unit and a control unit according to the first embodiment.
　図５に示すように、受信では、受信チャンネルＲＣ１－ＲＣ２の受信データが、チャンネル毎に直交復調部１３１に入力される。入力した受信データは、直交復調部１３１にて、ベースバンドに変換され、ベースバンド波形整形部１３２へ出力される。尚、２つの受信チャンネルＲＣ１－ＲＣ２には同一のデータが搭載されており、受信チャンネルＲＣ１－ＲＣ２を使用してダイバーシティ受信する。 As shown in FIG. 5, in reception, reception data of reception channels RC1 to RC2 are input to the orthogonal demodulation unit 131 for each channel. The input reception data is converted into a baseband by the orthogonal demodulation unit 131, and is output to the baseband waveform shaping unit 132. The same data is loaded in the two receive channels RC1-RC2, and diversity reception is performed using the receive channels RC1-RC2.
　ベースバンドに変換されたデータは、ベースバンド波形整形部１３２にて、波形整形される。波形整形の１つの例として、ルート・レイズド・コサイン・フィルタで波形整形することが挙げられる。 The data converted to the baseband is waveform-shaped by the baseband waveform shaping unit 132. One example of waveform shaping is waveform shaping with a root raised cosine filter.
　波形整形されたデータは、等化器１３４へ出力される。 The waveform-shaped data is output to the equalizer 134.
　等化器１３４は、無線通信局２０の送信データが対流圏散乱路８０を伝搬することによって生じた送信データの歪を補正する。歪の補正には、例えば、適応等化器（図示しない）を使用することができる。 The equalizer 134 corrects distortion of the transmission data generated by the transmission data of the wireless communication station 20 propagating through the troposphere scattering path 80. For distortion correction, for example, an adaptive equalizer (not shown) can be used.
　等化器１３４では、第１制御情報検出部１３５で検出された変調方式とフレームの位置に基づいて、適応等化器による処理が行われる。適応等化器による処理は、データが対流圏散乱路８０を伝搬することによって生じた進み波や遅れ波の成分の集束やデータの振幅の自乗化の処理が、変動するフェージングに適応して行われる。等化器１３４内において、適応等化器から出力したデータは、ダイバーシティ合成処理される。等化器１３４から出力されたデータは、制御部１１及び第１制御情報検出部１３５へ出力される。 In the equalizer 134, processing by the adaptive equalizer is performed based on the modulation method detected by the first control information detection unit 135 and the position of the frame. In the processing by the adaptive equalizer, the processing of focusing the components of the leading wave and the lag wave generated by the data propagating through the troposphere scattering path 80 and squaring the amplitude of the data is performed adaptively to the fluctuating fading . In the equalizer 134, data output from the adaptive equalizer is subjected to diversity combining processing. The data output from the equalizer 134 is output to the control unit 11 and the first control information detection unit 135.
　第１制御情報検出部１３５では、データから第１制御情報を検出し、検出した第１制御情報に対して復調及び復号処理を行う。第１制御情報に対して復調及び復号処理を行うことにより、第１制御情報に含まれる対局送信制御情報が検出される。対局送信制御情報には制御情報が含まれ、制御情報には変調方式及び符号化率が含まれるので、制御情報から変調方式及び符号化率が抽出される。抽出された変調方式及び符号化率は、復調処理部１３８と復号化部１４１へ出力される。 The first control information detection unit 135 detects the first control information from the data, and performs demodulation and decoding processing on the detected first control information. By performing demodulation and decoding processing on the first control information, the peer transmission control information included in the first control information is detected. Since the transmission control information on the other side includes control information, and the control information includes the modulation scheme and the coding rate, the modulation scheme and the coding rate are extracted from the control information. The extracted modulation scheme and coding rate are output to the demodulation processing unit 138 and the decoding unit 141.
　第２制御情報検出部１３６では、データから第２制御情報を検出し、検出した第２制御情報に対して復調及び復号処理を行う。第２制御情報に復調及び復号処理を行うことにより、第２制御情報に含まれる自局送信制御情報が検出される。自局送信制御情報には制御情報が含まれ、制御情報には変調方式及び符号化率が含まれる。検出され自局送信制御情報は、制御部１１へ出力される。また、第２制御情報検出部１３６からの出力は、復調処理部１３８へ出力される。 The second control information detection unit 136 detects the second control information from the data, and performs demodulation and decoding processing on the detected second control information. By performing demodulation and decoding processing on the second control information, own-station transmission control information included in the second control information is detected. The own-station transmission control information includes control information, and the control information includes a modulation scheme and a coding rate. The detected own-station transmission control information is output to the control unit 11. Further, the output from the second control information detection unit 136 is output to the demodulation processing unit 138.
　復調処理部１３８では、第１制御情報検出部１３５で抽出された変調方式に基づいてデータが復調処理される。 The demodulation processing unit 138 demodulates the data based on the modulation scheme extracted by the first control information detection unit 135.
　復調処理されたデータは、第１制御情報検出部１３５で抽出された符号化率に基づいて、復号化部１４１にて誤り訂正処理される。誤り訂正処理されたデータは、出力される。 The data subjected to demodulation processing is subjected to error correction processing by the decoding unit 141 based on the coding rate extracted by the first control information detection unit 135. The error-corrected data is output.
　制御部１１では、等化器１３４から出力したデータのキャリア対雑音比、信号対雑音比、受信レベル及び誤り率を算出（推定）する。算出したキャリア対雑音比、信号対雑音比、受信レベル及び誤り率の少なくともいずれか１つに基づいて、対流圏散乱路８０の伝搬状況を推測し、無線通信局２０から送信する変調方式及び符号化率を決定する。 The control unit 11 calculates (estimates) the carrier to noise ratio, the signal to noise ratio, the reception level, and the error rate of the data output from the equalizer 134. A modulation scheme and coding for inferring the propagation situation of the tropospheric scattering path 80 based on at least one of the calculated carrier to noise ratio, signal to noise ratio, reception level and error rate, and transmitting from the wireless communication station 20 Determine the rate.
　制御部１１は、等化器１３４から出力したデータのうち、図４に示す既知データのキャリア対雑音比、信号対雑音比、受信レベル及び誤り率を算出してもよい。通常は、データを使用するよりも既知データを使用する方が、より正確にキャリア対雑音比、信号対雑音比、受信レベル及び誤り率を算出することができるからである。 The control unit 11 may calculate the carrier-to-noise ratio, the signal-to-noise ratio, the reception level, and the error rate of the known data shown in FIG. 4 among the data output from the equalizer 134. Normally, using known data rather than using data can more accurately calculate the carrier to noise ratio, signal to noise ratio, reception level and error rate.
　これには限定されずに、制御部１１は、図４に示すデータ及び制御情報（データ１、データ２、データｎ等）のキャリア対雑音比、信号対雑音比、受信レベル及び誤り率を算出してもよい。 Without being limited thereto, the control unit 11 calculates the carrier-to-noise ratio, signal-to-noise ratio, reception level and error rate of the data and control information (data 1, data 2, data n, etc.) shown in FIG. You may
　制御部１１は、誤り訂正率を算出し、算出した誤り訂正率に基づいて、伝搬状況を推測し、変調方式及び符号化率を決定してもよい。 The control unit 11 may calculate the error correction rate, estimate the propagation state based on the calculated error correction rate, and determine the modulation scheme and the coding rate.
　制御部１１は、決定した変調方式及び符号化率を対局送信制御情報に含め、対局送信制御情報を変調部１２へ出力する。また、制御部１１は、第２制御情報検出部１３６が抽出した自局送信制御情報を変調部１２へ出力する。 The control unit 11 includes the determined modulation scheme and coding rate in the on-station transmission control information, and outputs the on-station transmission control information to the modulation unit 12. In addition, the control unit 11 outputs the own-station transmission control information extracted by the second control information detection unit 136 to the modulation unit 12.
　実施の形態１においては、Ａ局である無線通信局１０の受信状況に基づいて、Ｂ局である無線通信局２０の送信する変調方式及び符号化率を決定する。このように、対向するＢ局が、Ａ局の送信する変調方式及び符号化率を決定することにより、対流圏散乱路８０でのマルチパスフェージングが発生する伝搬状況において、適応符号化率変調方式を実現することができる。 In the first embodiment, the modulation scheme and coding rate to be transmitted by the wireless communication station 20 which is the station B are determined based on the reception condition of the wireless communication station 10 which is the station A. In this way, the adaptive coding rate modulation scheme is selected in the propagation situation where multipath fading occurs in the troposphere scattering path 80 by the opposing station B determining the modulation scheme and coding rate transmitted by the station A. It can be realized.
　その結果、見通し外通信において、適応符号化率変調を行うことが可能な変復調器を有する無線通信局、システム、方法及びプログラムを提供することができる。 As a result, it is possible to provide a wireless communication station, system, method and program having a modulator / demodulator capable of performing adaptive coding rate modulation in out-of-sight communication.
　また、実施の形態１においては、物理層よりも上位層は関与せずに、物理層レベルで対局の変調方式及び符号化率を決定するので、マルチパスフェージングが発生し電波の受信状況が刻一刻と変化する見通し外通信においても高速に適応符号化率変調を制御することができる。 Also, in the first embodiment, since the modulation scheme and coding rate of the other station are determined at the physical layer level without involving the upper layer than the physical layer, multipath fading occurs and the reception status of radio waves Adaptive code rate modulation can be controlled at high speed even in out-of-sight communication that changes momentarily.
　また、実施の形態１においては、制御情報（自局送信制御情報と新たな対局送信制御情報）と送信データを単一の同一の送信チャンネルに時分割多重で送信する。これにより、制御情報と送信データとを、別の送信チャンネルで送信する必要がない。また、従来は変調方式と符号化率は固定的な選択式であったが、適応符号化率変調方式にすることにより、周波数帯域を有効に活用し、帯域に対するスループットを最適にすることができる。 Further, in the first embodiment, control information (the own-station transmission control information and new counter transmission control information) and transmission data are transmitted on a single same transmission channel by time division multiplexing. This eliminates the need to transmit control information and transmission data on separate transmission channels. Also, although the modulation scheme and the coding rate have conventionally been fixed and selective, by using the adaptive coding rate modulation scheme, it is possible to effectively utilize the frequency band and optimize the throughput for the band. .
　［実施の形態２］
　図６は、実施の形態２に係る無線通信局を例示するブロック図である。 Second Embodiment
FIG. 6 is a block diagram illustrating a radio communication station according to the second embodiment.
　図６に示すように、実施の形態２に係るシステム２０ｓは、無線通信局３０（Ａ局）と無線通信局４０（Ｂ局）とを備える。無線通信局３０は、復調部３３と制御部３１と変調部３２とを備える。無線通信局４０は、復調部４３と制御部４１と変調部４２とを備える。 As shown in FIG. 6, a system 20s according to the second embodiment includes a wireless communication station 30 (station A) and a wireless communication station 40 (station B). The wireless communication station 30 includes a demodulator 33, a controller 31, and a modulator 32. The wireless communication station 40 includes a demodulator 43, a controller 41, and a modulator 42.
　実施の形態２に係る無線通信局３０は、無線通信局４０から送信され無線通信局３０が受信した受信チャンネルＲＣ３１－ＲＣ３２の受信状況を、無線通信局４０にフィードバックする。逆に、無線通信局４０は、無線通信局３０から送信され無線通信局４０が受信した受信チャンネルＲＣ４１－ＲＣ４２の受信状況を、無線通信局３０にフィードバックする。 The radio communication station 30 according to the second embodiment feeds back to the radio communication station 40 the reception status of the reception channels RC31 to RC32 transmitted from the radio communication station 40 and received by the radio communication station 30. Conversely, the wireless communication station 40 feeds back to the wireless communication station 30 the reception status of the reception channels RC41 to RC42 transmitted from the wireless communication station 30 and received by the wireless communication station 40.
　無線通信局３０は、受信チャンネルＲＣ３１－ＲＣ３２に含まれる受信チャンネルＲＣ４１－４２の受信状況に基づいて符号化及び変調処理を行う。すなわち、無線通信局３０は、受信チャンネルＲＣ３１－ＲＣ３２に含まれる無線通信局４０からフィードバックされた受信チャンネルＲＣ４１－４２の受信状況に基づいて、自局送信制御情報を生成する。無線通信局３０は、生成された自局送信制御情報に基づいて符号化及び変調処理を行う。 The radio communication station 30 performs coding and modulation processing based on the reception status of the reception channels RC41 to 42 included in the reception channels RC31 to RC32. That is, the radio communication station 30 generates own-station transmission control information based on the reception status of the reception channel RC41-42 fed back from the radio communication station 40 included in the reception channel RC31-RC32. The wireless communication station 30 performs encoding and modulation processing based on the generated own-station transmission control information.
　具体的な内容を以下に記載する。復調部３３は、無線通信局３０と対向して通信する無線通信局４０から受信した受信チャンネルＲＣ３１－ＲＣ３２に含まれる対局送信制御情報に基づいて復調及び復号化を行う。 Specific contents are described below. The demodulation unit 33 performs demodulation and decoding based on the other-station transmission control information included in the reception channels RC31 to RC32 received from the wireless communication station 40 that communicates with the wireless communication station 30 in a face-to-face manner.
　制御部３１は、受信チャンネルＲＣ３１－ＲＣ３２に含まれ、無線通信局３０から送信された送信チャンネルＴＣ３１の無線通信局４０での受信状況を復調部３３から取得し、該受信状況を変調部３２へ伝送する。 The control unit 31 acquires from the demodulation unit 33 the reception status at the radio communication station 40 of the transmission channel TC31 which is included in the reception channels RC31 to RC32 and transmitted from the radio communication station 30, and sends the reception status to the modulation unit 32. Transmit
　無線通信局３０から送信された送信チャンネルＴＣ３１は、対流圏散乱路８０を介して、無線通信局４０で受信チャンネルＲＣ４１－ＲＣ４２として受信される。 The transmission channel TC31 transmitted from the wireless communication station 30 is received by the wireless communication station 40 as reception channels RC41 to RC42 via the troposphere scatterer 80.
　変調部３２は、送信チャンネルＴＣ３１の無線通信局４０での受信状況（受信チャンネルＲＣ４１－ＲＣ４２の受信状況）に基づいて無線通信局３０の送信データの制御に関する自局送信制御情報を生成する。また、変調部３２は、生成された自局送信制御情報に基づいて符号化及び変調を行う。変調部３２は、自局送信制御情報と、受信チャンネルＲＣ３１－ＲＣ３２の無線通信局３０での受信状況と、無線通信局３０の送信データと、を送信チャンネルＴＣ３１に含めて送信する。 The modulation unit 32 generates own-station transmission control information related to control of transmission data of the radio communication station 30 based on the reception state (reception state of the reception channels RC41 to RC42) of the transmission channel TC31 at the radio communication station 40. Also, the modulation unit 32 performs encoding and modulation based on the generated own-station transmission control information. The modulation unit 32 transmits its own transmission control information, the reception condition of the reception channels RC31 to RC32 at the radio communication station 30, and the transmission data of the radio communication station 30 in the transmission channel TC31.
　実施の形態２においては、受信状況に基づいて自局送信制御情報を生成し、適応符号化率変調を行うことができる。その結果、見通し外通信において、適応符号化率変調を行うことが可能な変復調器を有する無線通信局、システム、方法及びプログラムを提供することができる。 In Embodiment 2, local transmission control information can be generated based on the reception status, and adaptive coding rate modulation can be performed. As a result, it is possible to provide a wireless communication station, system, method and program having a modulator / demodulator capable of performing adaptive coding rate modulation in out-of-sight communication.
　尚、上記の実施の形態では、本発明をハードウェアの構成として説明したが、本発明はこれに限定されるものではない。本発明は、各構成要素の処理を、ＣＰＵ（Central Processing Unit）にコンピュータプログラムを実行させることにより実現することも可能である。 Although the present invention has been described as the hardware configuration in the above embodiment, the present invention is not limited to this. The present invention can also realize the processing of each component by causing a central processing unit (CPU) to execute a computer program.
　上記の実施の形態において、プログラムは、様々なタイプの非一時的なコンピュータ可読媒体（non-transitory computer readable medium）を用いて格納され、コンピュータに供給することができる。非一時的なコンピュータ可読媒体は、様々なタイプの実態のある記録媒体(tangible storage medium)を含む。非一時的なコンピュータ可読媒体の例は、磁気記録媒体（例えばフレキシブルディスク、磁気テープ、ハードディスクドライブ）、光磁気記録媒体（例えば光磁気ディスク）、ＣＤ－ＲＯＭ（Read Only Memory）、ＣＤ－Ｒ、ＣＤ－Ｒ／Ｗ、半導体メモリ（例えば、マスクＲＯＭ、ＰＲＯＭ（Programmable ROM）、ＥＰＲＯＭ(Erasable PROM)）、フラッシュＲＯＭ、ＲＡＭ(Random Access Memory)を含む。また、プログラムは、様々なタイプの一時的なコンピュータ可読媒体（transitory computer readable medium）によってコンピュータに供給されてもよい。一時的なコンピュータ可読媒体の例は、電気信号、光信号、及び電磁波を含む。一時的なコンピュータ可読媒体は、電線及び光ファイバ等の有線通信路、又は無線通信路を介して、プログラムをコンピュータに供給できる。 In the above embodiment, the program can be stored using various types of non-transitory computer readable media and supplied to a computer. Non-transitory computer readable media include various types of tangible storage media. Examples of non-transitory computer readable media are magnetic recording media (eg flexible disk, magnetic tape, hard disk drive), magneto-optical recording media (eg magneto-optical disk), CD-ROM (Read Only Memory), CD-R, It includes a CD-R / W, a semiconductor memory (for example, a mask ROM, a PROM (Programmable ROM), an EPROM (Erasable PROM)), a flash ROM, and a RAM (Random Access Memory). Also, the programs may be supplied to the computer by various types of transitory computer readable media. Examples of temporary computer readable media include electrical signals, light signals, and electromagnetic waves. The temporary computer readable medium can provide the program to the computer via a wired communication path such as electric wire and optical fiber, or a wireless communication path.
　また、上記の実施形態の一部又は全部は、以下の付記のようにも記載されうるが、以下には限られない。 Moreover, although a part or all of the above-mentioned embodiment may be described as the following additional notes, it is not limited to the following.
　（付記１）
　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行う復調部と、
　前記受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成する制御部と、
　前記受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを送信チャンネルに含めて送信する変調部と、
　を備えた無線通信局。 (Supplementary Note 1)
A demodulation unit that performs demodulation and decoding based on the station transmission control information included in the reception channel received from the opposite station communicating with the local station;
A control unit that generates new game transmission control information on control of transmission data of the corresponding station based on the reception status of the reception channel;
The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station A modulation unit that transmits transmission data by including it in the transmission channel;
Wireless communication station with.
　（付記２）
　前記自局送信制御情報は、前記自局の前記送信データの変調方式と符号化方式と符号化率を含み、
　前記対局送信制御情報及び前記新たな対局送信制御情報のそれぞれは、前記対局の前記送信データの変調方式と符号化方式と符号化率を含む、
　付記１に記載の無線通信局。 (Supplementary Note 2)
The own-station transmission control information includes a modulation scheme, an encoding scheme, and a coding rate of the transmission data of the own station,
Each of the counter transmission control information and the new counter transmission control information includes a modulation scheme, a coding scheme, and a coding rate of the transmission data of the counter station.
The wireless communication station according to appendix 1.
　（付記３）
　前記復調部は、前記対局の前記送信データが対流圏散乱、又は、山岳回折による見通し外の通信路を伝搬することによって生じた前記送信データの歪を補正することができる機能を含む、
　付記１又は２に記載の無線通信局。 (Supplementary Note 3)
The demodulation unit includes a function capable of correcting distortion of the transmission data generated by the transmission data of the opposite station propagating through a communication path out of line of sight due to tropospheric scattering or mountain diffraction.
The wireless communication station according to appendix 1 or 2.
　（付記４）
　前記制御部は、前記受信状況に基づいて前記受信チャンネルのキャリア対雑音比、信号対雑音比、受信レベル及び誤り率を生成し、前記キャリア対雑音比、前記信号対雑音比、前記受信レベル及び前記誤り率の少なくともいずれか１つに基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成する、
　付記１乃至３のいずれか１つに記載の無線通信局。 (Supplementary Note 4)
The control unit generates a carrier to noise ratio, a signal to noise ratio, a reception level and an error rate of the reception channel based on the reception condition, and the carrier to noise ratio, the signal to noise ratio, the reception level and Generating new game transmission control information related to control of transmission data of the corresponding station based on at least one of the error rates;
The radio communication station according to any one of appendices 1 to 3.
　（付記５）
　前記変調部は、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを、フレーム内に多重化して送信する、
　付記１乃至４のいずれか１つに記載の無線通信局。 (Supplementary Note 5)
The modulation unit multiplexes the own-station transmission control information, the new peer transmission control information, and the transmission data of the own station in a frame, and transmits the multiplexed data.
The radio communication station according to any one of appendices 1 to 4.
　（付記６）
　前記変調部は、複数の前記送信チャンネルを送信する、
　付記１乃至５のいずれか１項に記載の無線通信局。 (Supplementary Note 6)
The modulation unit transmits a plurality of the transmission channels.
The radio communication station according to any one of appendices 1 to 5.
　（付記７）
　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行う復調部と、
　前記受信チャンネルに含まれ、前記自局から送信された送信チャンネルの前記対局での受信状況を変調部へ伝送する制御部と、
　前記送信チャンネルの前記対局での受信状況に基づいて前記自局の送信データの制御に関する自局送信制御情報を生成し、前記自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記受信チャンネルの前記自局での受信状況と前記自局の前記送信データとを前記送信チャンネルに含めて送信する前記変調部と、
　を備えた無線通信局。 (Appendix 7)
A demodulation unit that performs demodulation and decoding based on the station transmission control information included in the reception channel received from the opposite station communicating with the local station;
A control unit that is included in the reception channel and transmits the reception status of the transmission channel transmitted from the local station at the other station to a modulation unit;
Local transmission control information on control of transmission data of the local station is generated based on the reception status of the transmission channel at the other station, and encoding and modulation are performed based on the local transmission control information, and the local station The modulation unit which transmits transmission control information, the reception status of the reception channel at the own station, and the transmission data of the own station in the transmission channel;
Wireless communication station with.
　（付記８）
　自局と前記自局と対向して通信する対局とを備えたシステムであって、
　前記自局は、
　前記対局から受信した自局受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行う自局復調部と、
　前記自局受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成する自局制御部と、
　前記自局受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを自局送信チャンネルに含めて送信する自局変調部と、を有し、
　前記対局は、
　前記自局から受信した対局受信チャンネルに含まれる前記自局送信制御情報に基づいて復調及び復号化を行う対局復調部と、
　前記対局受信チャンネルの受信状況に基づいて前記自局の送信データの制御に関する新たな自局送信制御情報を生成する対局制御部と、
　前記対局受信チャンネルに含まれる前記対局の送信データの制御に関する対局送信制御情報に基づいて符号化及び変調を行い、前記対局送信制御情報と前記新たな自局送信制御情報と前記対局の前記送信データとを対局送信チャンネルに含めて送信する対局変調部と、を有する、
　システム。 (Supplementary Note 8)
A system comprising an own station and a game station in communication with the own station, comprising:
The own station is
An own station demodulation unit that performs demodulation and decoding based on the opposite station transmission control information included in the own station reception channel received from the opposite station;
A self-station control unit that generates new game transmission control information related to control of transmission data of the opposite station based on the reception status of the self-station reception channel;
The encoding and modulation are performed based on the own station transmission control information related to the control of the own station transmission data included in the own station reception channel, and the own station transmission control information, the new game transmission control information, and the own station A self-station modulation unit for transmitting the transmission data of the above-mentioned station in a self-station transmission channel, and
The game is
A station demodulation unit that performs demodulation and decoding based on the station transmission control information included in the station reception channel received from the station;
A station control unit that generates new own station transmission control information related to control of transmission data of the own station based on the reception status of the opposite station reception channel;
The encoding and modulation are performed based on the counter transmission control information related to the control of the transmission data of the counterpart contained in the reception reception channel, and the transmission control information of the counterpart, the new own transmission control information and the transmission data of the counterpart And a counter modulation section that transmits the signal in the counter transmission channel.
system.
　（付記９）
　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行うステップと、
　前記受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成するステップと、
　前記受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを送信チャンネルに含めて送信するステップと、
　を備えた方法。 (Appendix 9)
Performing demodulation and decoding based on game transmission control information included in the reception channel received from the station communicating with the own station;
Generating new game transmission control information related to control of transmission data of the station based on the reception status of the reception channel;
The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station Transmitting the transmission data with the transmission channel included;
How to have it.
　（付記１０）
　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行うステップと、
　前記受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成するステップと、
　前記受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを送信チャンネルに含めて送信するステップと、
　をコンピュータに実行させるプログラム。 (Supplementary Note 10)
Performing demodulation and decoding based on game transmission control information included in the reception channel received from the station communicating with the own station;
Generating new game transmission control information related to control of transmission data of the station based on the reception status of the reception channel;
The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station Transmitting the transmission data with the transmission channel included;
A program that causes a computer to execute.
　（付記１１）
　前記変調部は、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを、前記複数の前記送信チャンネルの少なくとも１つに含めて送信する、
　付記６に記載の無線通信局。 (Supplementary Note 11)
The modulation unit transmits the own-station transmission control information, the new peer transmission control information, and the transmission data of the own station in at least one of the plurality of transmission channels.
The radio communication station according to appendix 6.
　（付記１２）
　前記復調部は、複数の前記受信チャンネルを受信する、
　付記１乃至６のいずれか１つに記載の無線通信局。 (Supplementary Note 12)
The demodulation unit receives a plurality of the reception channels.
The radio communication station according to any one of appendices 1 to 6.
　（付記１３）
　前記制御部は、前記複数の前記受信チャンネルのそれぞれの受信状況に基づいて、それぞれにキャリア対雑音比、信号対雑音比、受信レベル及び誤り率を生成し、前記生成した複数の前記キャリア対雑音比、前記信号対雑音比、前記受信レベル及び前記誤り率の少なくともいずれか１つの平均値に基づいて、前記新たな対局送信制御情報を生成する、
　付記１２に記載の無線通信局。 (Supplementary Note 13)
The control unit generates a carrier-to-noise ratio, a signal-to-noise ratio, a reception level and an error rate for each of the plurality of reception channels based on the reception status of each of the plurality of reception channels, and the plurality of generated carrier-to-noises Generating the new point-to-point transmission control information based on an average value of at least one of a ratio, the signal-to-noise ratio, the reception level, and the error rate;
The wireless communication station according to appendix 12.
　なお、本発明は上記実施の形態に限られたものではなく、趣旨を逸脱しない範囲で適宜変更することが可能である。 The present invention is not limited to the above embodiment, and can be appropriately modified without departing from the scope of the present invention.
　以上、実施の形態を参照して本願発明を説明したが、本願発明は上記によって限定されるものではない。本願発明の構成や詳細には、発明のスコープ内で当業者が理解し得る様々な変更をすることができる。 As mentioned above, although this invention was demonstrated with reference to embodiment, this invention is not limited by the above. The configuration and details of the present invention can be modified in various ways that can be understood by those skilled in the art within the scope of the invention.
　この出願は、２０１７年１０月１６日に出願された日本出願特願２０１７－２００３０３を基礎とする優先権を主張し、その開示の全てをここに取り込む。 This application claims priority based on Japanese Patent Application No. 2017-200303 filed on Oct. 16, 2017, the entire disclosure of which is incorporated herein.
　１０、２０、３０、４０…無線通信局
　１０ｍ、２０ｍ、３０ｍ、４０ｍ…変復調器
　１０ｓ、２０ｓ…システム
　１１、２１、３１、４１…制御部
　１２、２２、３２、４２…変調部
　１３、２３、３３、４３…復調部
　８０…対流圏散乱路
　１２１…符号化部
　１２４…変調処理部
　１２５…第１制御情報挿入部
　１２６…第２制御情報挿入部
　１２７…既知データ挿入部
　１２９…ベースバンド波形整形部
　１３０…直交変調部
　１３１…直交復調部
　１３２…ベースバンド波形整形部
　１３４…等化器
　１３５…第１制御情報検出部
　１３６…第２制御情報検出部
　１３８…復調処理部
　１４１…復号化部
　ｆ１…無線周波数
　ＴＣ１、ＴＣ３１、ＴＣ４１…送信チャンネル
　ＲＣ１、ＲＣ２、ＲＣ３１、ＲＣ３２、ＲＣ４１、ＲＣ４２…受信チャンネル
　Ｄ１、Ｄ２、Ｄｎ、Ｘ１、Ｘ２、Ｙ…シンボル 10, 20, 30, 40: Wireless communication station 10m, 20m, 30m, 40m ... Modulator / demodulator 10s, 20s ... System 11, 21, 31, 41 ... Control unit 12, 22, 32, 42 ... Modulation unit 13, 23, 33, 43 Demodulation section 80 Tropospheric scattering path 121 Coding section 124 Modulation processing section 125 First control information insertion section 126 Second control information insertion section 127 Known data insertion section 129 Baseband waveform shaping section 130 Orthogonal modulation unit 131 Orthogonal demodulation unit 132 Baseband waveform shaping unit 134 Equalizer 135 First control information detection unit 136 Second control information detection unit 138 Demodulation processing unit 141 Decoding unit f1 Radio frequency TC1, TC31, TC41 ... Transmission channel RC1, RC2, RC31, RC32, RC41, RC42 ... Reception channel D1, D2 Dn, X1, X2, Y ... symbol

Claims (10)

  1. 　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行う復調手段と、
    　前記受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成する制御手段と、
    　前記受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを送信チャンネルに含めて送信する変調手段と、
    　を備えた無線通信局。     Demodulation means for performing demodulation and decoding based on the station transmission control information included in the reception channel received from the station communicating with the own station;
    Control means for generating new game transmission control information on control of transmission data of the station based on the reception status of the reception channel;
    The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station Modulation means for transmitting the transmission data with the transmission channel included;
    Wireless communication station with.
  2. 　前記自局送信制御情報は、前記自局の前記送信データの変調方式と符号化方式と符号化率を含み、
    　前記対局送信制御情報及び前記新たな対局送信制御情報のそれぞれは、前記対局の前記送信データの変調方式と符号化方式と符号化率を含む、
    　請求項１に記載の無線通信局。     The own-station transmission control information includes a modulation scheme, an encoding scheme, and a coding rate of the transmission data of the own station,
    Each of the counter transmission control information and the new counter transmission control information includes a modulation scheme, a coding scheme, and a coding rate of the transmission data of the counter station.
    The wireless communication station according to claim 1.
  3. 　前記復調手段は、前記対局の前記送信データが対流圏散乱、又は、山岳回折による見通し外の通信路を伝搬することによって生じた前記送信データの歪を補正することができる機能を含む、
    　請求項１又は２に記載の無線通信局。     The demodulation means includes a function capable of correcting distortion of the transmission data caused by the transmission data of the opposite station propagating through a communication path out of line of sight due to tropospheric scattering or mountain diffraction.
    The wireless communication station according to claim 1 or 2.
  4. 　前記制御手段は、前記受信状況に基づいて前記受信チャンネルのキャリア対雑音比、信号対雑音比、受信レベル及び誤り率を生成し、前記キャリア対雑音比、前記信号対雑音比、前記受信レベル及び前記誤り率の少なくともいずれか１つに基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成する、
    　請求項１乃至３のいずれか１項に記載の無線通信局。     The control means generates a carrier to noise ratio, a signal to noise ratio, a reception level and an error rate of the reception channel based on the reception condition, and the carrier to noise ratio, the signal to noise ratio, the reception level and Generating new game transmission control information related to control of transmission data of the corresponding station based on at least one of the error rates;
    The wireless communication station according to any one of claims 1 to 3.
  5. 　前記変調手段は、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを、フレーム内に多重化して送信する、
    　請求項１乃至４のいずれか１項に記載の無線通信局。     The modulation means multiplexes and transmits the own-station transmission control information, the new counter-transmission control information, and the transmission data of the own station in a frame.
    The wireless communication station according to any one of claims 1 to 4.
  6. 　前記変調手段は、複数の前記送信チャンネルを送信する、
    　請求項１乃至５のいずれか１項に記載の無線通信局。     The modulation means transmits a plurality of the transmission channels.
    The wireless communication station according to any one of claims 1 to 5.
  7. 　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行う復調手段と、
    　前記受信チャンネルに含まれ、前記自局から送信された送信チャンネルの前記対局での受信状況を変調手段へ伝送する制御手段と、
    　前記送信チャンネルの前記対局での受信状況に基づいて前記自局の送信データの制御に関する自局送信制御情報を生成し、前記自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記受信チャンネルの前記自局での受信状況と前記自局の前記送信データとを前記送信チャンネルに含めて送信する前記変調手段と、
    　を備えた無線通信局。     Demodulation means for performing demodulation and decoding based on the station transmission control information included in the reception channel received from the station communicating with the own station;
    Control means for transmitting to the modulation means the reception status at the other station of the transmission channel transmitted from the own station and included in the reception channel;
    Local transmission control information on control of transmission data of the local station is generated based on the reception status of the transmission channel at the other station, and encoding and modulation are performed based on the local transmission control information, and the local station The modulation means for transmitting transmission control information, the reception status of the reception channel at the own station, and the transmission data of the own station included in the transmission channel;
    Wireless communication station with.
  8. 　自局と前記自局と対向して通信する対局とを備え、
    　前記自局は、
    　前記対局から受信した自局受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行う自局復調手段と、
    　前記自局受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成する自局制御手段と、
    　前記自局受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを自局送信チャンネルに含めて送信する自局変調手段と、を有し、
    　前記対局は、
    　前記自局から受信した対局受信チャンネルに含まれる前記自局送信制御情報に基づいて復調及び復号化を行う対局復調手段と、
    　前記対局受信チャンネルの受信状況に基づいて前記自局の送信データの制御に関する新たな自局送信制御情報を生成する対局制御手段と、
    　前記対局受信チャンネルに含まれる前記対局の送信データの制御に関する対局送信制御情報に基づいて符号化及び変調を行い、前記対局送信制御情報と前記新たな自局送信制御情報と前記対局の前記送信データとを対局送信チャンネルに含めて送信する対局変調手段と、を有する、
    　システム。     And a game station that communicates with the own station and the own station.
    The own station is
    A local station demodulation means for performing demodulation and decoding based on the local station transmission control information included in the local station reception channel received from the local station;
    Own station control means for generating new game transmission control information related to control of transmission data of the opposite station based on the reception status of the own station reception channel;
    The encoding and modulation are performed based on the own station transmission control information related to the control of the own station transmission data included in the own station reception channel, and the own station transmission control information, the new game transmission control information, and the own station A self-station modulation unit for transmitting the transmission data of the above-mentioned station in a self-station transmission channel,
    The game is
    A station demodulation means for performing demodulation and decoding based on the station transmission control information contained in the station reception channel received from the station;
    Game control means for generating new own station transmission control information related to control of transmission data of the own station based on the reception status of the opposite station reception channel;
    The encoding and modulation are performed based on the counter transmission control information related to the control of the transmission data of the counterpart contained in the reception reception channel, and the transmission control information of the counterpart, the new own transmission control information and the transmission data of the counterpart And a counter modulation means for transmitting in a counter transmission channel.
    system.
  9. 　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行うステップと、
    　前記受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成するステップと、
    　前記受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを送信チャンネルに含めて送信するステップと、
    　を備えた方法。     Performing demodulation and decoding based on game transmission control information included in the reception channel received from the station communicating with the own station;
    Generating new game transmission control information related to control of transmission data of the station based on the reception status of the reception channel;
    The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station Transmitting the transmission data with the transmission channel included;
    How to have it.
  10. 　自局と対向して通信する対局から受信した受信チャンネルに含まれる対局送信制御情報に基づいて復調及び復号化を行うステップと、
    　前記受信チャンネルの受信状況に基づいて前記対局の送信データの制御に関する新たな対局送信制御情報を生成するステップと、
    　前記受信チャンネルに含まれる前記自局の送信データの制御に関する自局送信制御情報に基づいて符号化及び変調を行い、前記自局送信制御情報と前記新たな対局送信制御情報と前記自局の前記送信データとを送信チャンネルに含めて送信するステップと、
    　をコンピュータに実行させるプログラムが格納される非一時的なコンピュータ可読媒体。     Performing demodulation and decoding based on game transmission control information included in the reception channel received from the station communicating with the own station;
    Generating new game transmission control information related to control of transmission data of the station based on the reception status of the reception channel;
    The encoding and modulation are performed based on the own station transmission control information related to the control of the transmission data of the own station included in the reception channel, and the own station transmission control information, the new game transmission control information, and the own station Transmitting the transmission data with the transmission channel included;
    Non-transitory computer readable medium storing a program that causes a computer to execute.
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