Transmitter, transmission method used by the same, receiver for receiving a radio signal from transmitter and wireless communication system including the same

摘要

A transmitter incorporates a table (TBL1) for assigning the frame lengths of 560 μs and 600 μs to the code “0” in a binary system and assigning the frame lengths of 600 μs and 560 μs to the code “1” in the binary system. The transmitter refers to the table (TBL1) and assigns the two frame lengths of 560 μs and 600 μs and the two frame lengths of 600 μs and 560 μs to the codes “0” and “1”, respectively, in the code sequences [0,0], [0,1], [1,0] and [1,1] representing the transmission information “0” to “3” represented using the binary system, and sequentially transmits four radio signals having the assigned four frame lengths.

主权项

1. A transmitter comprising:
a generating unit configured to assign at least two different frame lengths to each code in a code sequence that represents transmission information and is represented using a base n (n is an integer not less than 2) to generate a plurality of frame lengths representing the code sequence; and a transmitting unit configured to sequentially receive the plurality of frame lengths from the generating unit and to sequentially transmit a plurality of radio signals having the received plurality of frame lengths, wherein the generating unit is configured to generate a plurality of frame lengths such that a first frame length included in a first plurality of frame lengths representing a first code sequence obtained by converting first transmission information to the base n is greater than a second frame length included in a second plurality of frame lengths representing a second code sequence obtained by converting second transmission information to the base n, the second transmission information being different from the first transmission information, and a third frame length included in the first plurality of frame lengths is smaller than a fourth frame length included in the second plurality of frame lengths, a place in order of the first frame length within the first plurality of frame lengths is equal to a place in order of the second frame length within the second plurality of frame lengths, and a place in order of the third frame length within the first plurality of frame lengths is equal to a place in order of the fourth frame length within the second plurality of frame lengths.