Patent ID: 7873096

Claim:
A wave-number-division multiplexing transmission apparatus that transmits data in a wave-number spectrum specific to both symbol and mobile station, and comprising: an encoder for encoding transmission data; a data-modulation unit for modulating output data from said encoder; a time-domain compression and repetition unit for compressing the time domains of each symbol of the transmission-symbol sequence that is output from said modulation unit, and repeating the symbols a specified number of times; a symbol-rearrangement unit for rearranging each of the symbols of the obtained repetitive-symbol sequence so that they have the same arrangement as said transmission-symbol sequence; a spreading-code-generation unit for generating a specified wave number code that makes up a Walsh code as a spreading code for each symbol of said repetitive-symbol sequence; a spreading unit for multiplying each symbol of said repetitive-symbol sequence with said spreading code to spread the symbols; and a transmission unit for transmitting the output from said spreading unit.