Wireless transmitting apparatus, wireless receiving apparatus, wireless transmission method, wireless reception method, wireless communication system, and wireless communication method

A wireless receiving apparatus that performs wireless communication connection with a wireless transmitting apparatus which comprises:

• a symbol generating circuit that converts a transmission data bit stream to a data symbol sequence;
• a training signal generating circuit that generates a training signal including information for carrier recovery, information for clock recovery, and information for frame synchronization;
• a multiplex circuit that multiplexes said training signal and said data symbol sequence, and generates a transmission burst signal;
• and
• a digital-to-analog conversion circuit that performs a digital-to-analog conversion of said transmission burst signal,
• the training signal generated by said training signal generating circuit being inserted into a transmission burst as a pilot signal at fixed symbol intervals by said multiplex circuit, and
• the wireless receiving apparatus comprising:
• a receiving circuit that receives a wireless burst signal transmitted from said wireless transmitting apparatus;
• an analog-to-digital conversion circuit that performs an analog-to-digital conversion of said received burst signal;
• a symbol timing synchronization circuit that performs symbol timing synchronization using the received burst signal that was subject to analog-to-digital conversion;
• a frame detection circuit that detects a frame position from the received burst signal for which symbol timing was established, and extracts a pilot signal;
• a frame synchronization circuit that performs frame synchronization using data relating to said detected frame position;
• a carrier frequency estimation circuit that performs a carrier frequency estimation using pilot signal data extracted by said frame detection circuit;
• a carrier frequency correction circuit that performs carrier frequency correction of the received burst signal for which symbol timing was established, using said estimated carrier frequency;
• a channel estimation circuit that estimates channel distortion based on said frequency-corrected received burst signal, and outputs information related to channel distortion;
• a channel compensation circuit that corrects channel distortion of said frequency-corrected received burst signal, using said information related to channel distortion;
• and
• a symbol decision circuit that converts a data symbol sequence of said channel-compensated received burst signal to a received data bit stream,
• wherein said training signal generating circuit comprises:
• a synchronization code sequence generating circuit that generates a synchronization code sequence signal for frame synchronization;
• a differential encoding circuit that differentially encodes said synchronization code sequence signal;
• and
• an interleave circuit that interleaves said differentially encoded synchronization code sequence signal.

A wireless transmission method comprising:

• a symbol generating process of converting a transmission data bit stream to a data symbol sequence;
• a training signal generating process of generating a training signal including information for carrier recovery, information for clock recovery, and information for frame synchronization;
• a multiplex process of multiplexing said training signal and said data symbol sequence, and generating a transmission burst signal;
• and
• a digital-to-analog conversion process of performing a digital-to-analog conversion of said transmission burst signal;
• and
• the training signal generated in said training signal generating process being inserted into a transmission burst as a pilot signal at fixed symbol intervals by said multiplex process,
• wherein said training signal generating process comprises:
• a synchronization code sequence generating process of generating a synchronization code sequence signal for frame synchronization;
• a differential encoding process of differentially encoding said synchronization code sequence signal;
• and
• an interleave process of interleaving said differentially encoded synchronization code sequence signal.

A wireless reception method in a wireless receiving apparatus which performs wireless communication connection with a wireless transmitting apparatus comprising:

• a symbol generating circuit that converts a transmission data bit stream to a data symbol sequence;
• a training signal generating circuit that generates a training signal including information for carrier recovery, information for clock recovery, and information for frame synchronization;
• a multiplex circuit that multiplexes said training signal and said data symbol sequence, and generates a transmission burst signal;
• and
• a digital-to-analog conversion circuit that performs a digital-to-analog conversion of said transmission burst signal;
• the training signal generated by said training signal generating circuit being inserted into a transmission burst as a pilot signal at fixed symbol intervals by said multiplex circuit;
• the wireless reception method comprising:
• a receiving process of receiving a wireless burst signal transmitted from said wireless transmitting apparatus;
• an analog-to-digital conversion process of performing an analog-to-digital conversion of said received burst signal;
• a symbol timing synchronization process of performing symbol timing synchronization using the received burst signal that was subject to analog-to-digital conversion;
• a frame detection process of detecting a frame position from the received burst signal for which symbol timing was established, and extracting a pilot signal;
• a frame synchronization process of performing frame synchronization using data relating to said detected frame position;
• a carrier frequency estimation process of performing a carrier frequency estimation using pilot signal data extracted in said frame detection process;
• a carrier frequency correction process of performing carrier frequency correction of the received burst signal for which symbol timing was established, using said estimated carrier frequency;
• a channel estimation process of estimating channel distortion based on said frequency-corrected received burst signal, and outputs information related to channel distortion;
• a channel compensation process of correcting channel distortion of said frequency-corrected received burst signal, using said information related to channel distortion;
• and
• a symbol decision of converting a data symbol sequence of said channel-compensated received burst signal to a received data bit stream,
• wherein said training signal generating process comprises:
• a synchronization code sequence generating process of generating a synchronization code sequence signal for frame synchronization;
• a differential encoding process of differentially encoding said synchronization code sequence signal;
• and
• an interleave process of interleaving said differentially encoded synchronization code sequence signal.

A wireless communication system including a wireless receiving apparatus and a wireless transmitting apparatus,

• said wireless transmitting apparatus comprising:
• a symbol generating circuit that converts a transmission data bit stream to a data symbol sequence;
• a training signal generating circuit that generates a training signal including information for carrier recovery, information for clock recovery, and information for frame synchronization;
• a multiplex circuit that multiplexes said training signal and said data symbol sequence, and generates a transmission burst signal;
• and
• a digital-to-analog conversion circuit that performs a digital-to-analog conversion of said transmission burst signal;
• the training signal generated by said training signal generating circuit being inserted into a transmission burst as a pilot signal at fixed symbol intervals by said multiplex circuit,
• said wireless receiving apparatus comprising:
• a receiving circuit that receives a wireless burst signal transmitted from said wireless transmitting apparatus;
• an analog-to-digital conversion circuit that performs an analog-to-digital conversion of said received burst signal;
• a symbol timing synchronization circuit that performs symbol timing synchronization using the received burst signal that was subject to analog-to-digital conversion;
• a frame detection circuit that detects a frame position from the received burst signal for which symbol timing was established, and extracts a pilot signal;
• a frame synchronization circuit that performs frame synchronization using data relating to said detected frame position;
• a carrier frequency estimation circuit that performs a carrier frequency estimation using pilot signal data extracted by said frame detection circuit;
• a carrier frequency correction circuit that performs carrier frequency correction of the received burst signal for which symbol timing was established, using said estimated carrier frequency;
• a channel estimation circuit that estimates channel distortion based on said frequency-corrected received burst signal, and outputs information related to channel distortion;
• a channel compensation circuit that corrects channel distortion of said frequency-corrected received burst signal, using said information related to channel distortion;
• and
• a symbol decision circuit that converts a data symbol sequence of said channel-compensated received burst signal to a received data bit stream,
• wherein said training signal generating circuit comprises:
• a synchronization code sequence generating circuit that generates a synchronization code sequence signal for frame synchronization;
• a differential encoding circuit that differentially encodes said synchronization code sequence signal;
• and
• an interleave circuit that interleaves said differentially encoded synchronization code sequence signal.

A wireless communication method for a wireless communication system including a wireless receiving apparatus and a wireless transmitting apparatus, said wireless communication method comprising:

• a symbol generating process of converting a transmission data bit stream to a data symbol sequence;
• a training signal generating process of generating a training signal including information for carrier recovery, information for clock recovery, and information for frame synchronization;
• a multiplex process of multiplexing said training signal and said data symbol sequence, and generating a transmission burst signal;
• and
• a digital-to-analog conversion process of performing a digital-to-analog conversion of said transmission burst signal;
• a training signal generated by said training signal generating circuit being inserted into a transmission burst as a pilot signal at fixed symbol intervals in said multiplex process;
• a receiving process of receiving a wireless burst signal transmitted from said wireless transmitting apparatus;
• an analog-to-digital conversion process of performing an analog-to-digital conversion of said received burst signal;
• a symbol timing synchronization process of performing symbol timing synchronization using the received burst signal that was subject to analog-to-digital conversion;
• a frame detection process of detecting a frame position from the received burst signal for which symbol timing was established, and extracting a pilot signal;
• a frame synchronization process of performing frame synchronization using data relating to said detected frame position;
• a carrier frequency estimation process of performing a carrier frequency estimation using pilot signal data extracted in said frame detection process;
• a carrier frequency correction process of performing carrier frequency correction of the received burst signal for which symbol timing was established, using said estimated carrier frequency;
• a channel estimation process of estimating channel distortion based on said frequency-corrected received burst signal, and outputting information related to channel distortion;
• a channel compensation process of correcting channel distortion of said frequency-corrected received burst signal, using said information related to channel distortion;
• and
• a symbol decision of converting a data symbol sequence of said channel-compensated received burst signal to a received data bit stream,
• wherein said training signal generating process comprises:
• a synchronization code sequence generating process of generating a synchronization code sequence signal for frame synchronization;
• a differential encoding process of differentially encoding said synchronization code sequence signal;
• and
• an interleave process of interleaving said differentially encoded synchronization code sequence signal.