Signal transmitting method and transmitter in radio multiplex transmission system

Abstract

A disclosed signal transmission method in a radio multiplex transmission system comprises the steps of: serial-to-parallel converting serial data to be transmitted into N (N: two or more) parallel data series; independently performing an error-correcting encoding process on the parallel signals of the N data series serial-to-parallel converted; parallel-to-serial converting the parallel signals encoded with error-correcting codes; performing an interleaving process on the parallel-to-serial converted signals; serial-to-parallel converting the interleaved signals into L (L: two or more) parallel data series and transmitting each of the L data series using L antennas; receiving the transmitted signals; separating the received signals into M (M: two or more) data series and parallel-to-serial converting the M data series; performing a deinterleaving process on the parallel-to-serial converted signals; serial-to-parallel converting the deinterleaved signals into N data series; independently performing an error-correcting decoding process on the parallel signals of the N data series serial-to-parallel converted; and parallel-to-serial converting the signals in which the error-correcting codes are decoded, thereby recovering the transmitted data.

1 . A signal transmission method in a radio multiplex transmission system, the signal transmission method comprising the steps of: 
 serial-to-parallel converting serial data to be transmitted into N (N: two or more) parallel data series;    independently performing an error-correcting encoding process and/or an interleaving process on parallel signals of the N data series serial-to-parallel converted;    transmitting each of the processed signals using a plurality of transmission antennas;    receiving the transmitted signals;    separating the received signals into M (M: two or more) data series;    independently performing a deinterleaving process and/or an error-correcting decoding process on each of the separated signals; and    parallel-to-serial converting the processed signals, thereby recovering the transmitted data.    
     
     
         2 . A signal transmission method in a radio multiplex transmission system, the signal transmission method comprising the steps of: 
 serial-to-parallel converting serial data to be transmitted into M (M: two or more) parallel data series;    independently performing an error-correcting encoding process on parallel signals of the M data series serial-to-parallel converted;    parallel-to-serial converting the parallel signals encoded with error-correcting codes;    performing an interleaving process on the parallel-to-serial converted signals; and    serial-to-parallel converting the interleaved signals into N (N: two or more) parallel data series and transmitting the N parallel data series using a plurality of transmission antennas.    
     
     
         3 . A signal reception method in a radio multiplex transmission system, the signal reception method comprising the steps of: 
 receiving signals transmitted from a transmitter, using a plurality of antennas;    separating the received signals into N (N: two or more) data series and parallel-to-serial converting the N data series;    performing a deinterleaving process on the parallel-to-serial converted signals;    serial-to-parallel converting the deinterleaved signals into M parallel data series;    independently performing an error-correcting decoding process on the parallel signals of the M data series serial-to-parallel converted; and    parallel-to-serial converting the signals in which error-correcting codes are decoded, thereby recovering the transmitted data.    
     
     
         4 . A signal transmission method in a radio multiplex transmission system, the signal transmission method comprising the steps of: 
 performing an error-correcting encoding process on serial data to be transmitted;    serial-to-parallel converting the serial signals encoded with error-correcting codes into N (N: two or more) parallel data series;    independently performing an interleaving process on the parallel signals of the N data series serial-to-parallel converted; and    transmitting the interleaved-signals using a plurality of transmission antennas.    
     
     
         5 . A signal reception method in a radio multiplex transmission system, the signal reception method comprising the steps of: 
 receiving signals transmitted from a transmitter, using a plurality of antennas;    separating the received signals into L (L: two or more) data series;    independently performing a deinterleaving process on each of the separated signals;    parallel-to-serial converting the deinterleaved signals; and    performing an error-correcting decoding process on the parallel-to-serial converted signals, thereby recovering the transmitted data.    
     
     
         6 . A transmitter used in a radio multiplex transmission system, the transmitter comprising: 
 a first serial-to-parallel converter for inputting serial data to be transmitted and for serial-to-parallel converting the input serial data into M (M: two or more) parallel data series;    M error-correcting encoders for independently performing an error-correcting encoding process on the parallel signals of the M data series output from the first serial-to-parallel converter;    a parallel-to-serial converter for parallel-to-serial converting the M parallel signals output from the M error-correcting encoders;    an interleaver for performing an interleaving process on the serial signals output from the parallel-to-serial converter;    a second serial-to-parallel converter for serial-to-parallel converting the signals output from the interleaver into N (N: two or more) parallel data series; and    a plurality of transmission antennas for transmitting the N parallel signals output from the second serial-to-parallel converter.    
     
     
         7 . A transmitter used in a radio multiplex transmission system, the transmitter comprising: 
 an error-correcting encoder for performing an error-correcting encoding process on serial data to be transmitted;    a serial-to-parallel converter for serial-to-parallel converting serial signals output from the error-correcting encoder into N (N: two or more) parallel data series;    N interleavers for independently performing an interleaving process on the parallel signals of the N data series output from the serial-to-parallel converter; and    a plurality of transmission antennas for transmitting the N signals output from each interleaver.    
     
     
         8 . A signal transmission method in a radio multiplex transmission system, the signal transmission method comprising the steps of: 
 selecting, in accordance with predetermined transmission control information, whether to perform an error-correcting encoding process on serial data to be transmitted in a parallel manner or in a serial manner; and    selecting whether to perform an interleaving process on the data encoded with error-correcting codes in a parallel manner or in a serial manner.    
     
     
         9 . A signal reception method in a, radio multiplex transmission system, the signal reception method comprising the steps of: 
 selecting, in accordance with predetermined reception control information, whether to perform a deinterleaving process on received signals in a parallel manner or in a serial manner; and    selecting whether to perform an error-correcting decoding process on the deinterleaved signals in a parallel manner or in a serial manner.    
     
     
         10 . A transmitter used in a radio multiplex transmission system, the transmitter comprising: 
 a plurality of selecting switches for selecting a connection relationship between serial data and a plurality of error-correcting encoders and a plurality of interleavers;    a control information demodulating unit for receiving predetermined transmission control information from a receiver and for demodulating the received transmission control information;    a structure determining unit for determining, in accordance with the demodulated transmission control information, whether to connect to the error-correcting encoders in a parallel manner for serial data to be transmitted and whether to connect to the interleavers in a parallel manner for the data encoded with error-correcting codes; and    a switching control unit for controlling the plural selecting switches in accordance with the determined information.    
     
     
         11 . A receiver used in a radio multiplex transmission system, the receiver comprising: 
 is a plurality of selecting switches for selecting a connection relationship between received signals and a plurality of deinterleavers and a plurality of error-correcting decoders;    a control information demodulating unit for receiving predetermined reception control information from a transmitter and for demodulating the received reception control information;    a switching control unit for controlling the plurality of selecting switches in order to select, in accordance with the demodulated reception control information, whether to connect to the deinterleavers in a parallel manner for received signals and whether to connect to the error-correcting decoders in a parallel manner for the deinterleaved signals.