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LOW PAPR SEQUENCE DESIGNING METHOD FOR USE IN RADIO COMMUNICATION SYSTEM

Abstract(summary):

Disclosed is a low PAPR sequence designing method for use in a radio communication system. First, a related parameter of a designed sequence is set and multiple iterations are performed, in one of the iterations, generated according to the parameter is a sequence of a designated length having multiple 0 and 1 as elements in a Bernoulli distribution conforming to a designated probability density parameter, the generated sequence is filtered on the basis of a PAPR of the sequence, the parameter for the next iteration is updated on the basis of the filtered sequence, and when the last of the iterations is completed, a sequence of the least PAPR is mapped to produce a low PAPR sequence having -1 and 1 as elements. Compared with the prior art, the present invention allows designing of a low PAPR sequence of an arbitrary length, where the sequence comprises only +1 and -1 as elements, and provides great autocorrelation performance. The present invention allows a low PAPR sequence to be produced even in a condition in which a specific value is taken at a specific position in a sequence, thus further broadening applicable scenarios and range of applications of the present invention. The present invention is applicable in but not limited to the designing of a long training sequence of an OFDM system.


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