COMMUNICATION METHOD OF SHARING CHARACTERISTIC INFORMATION OF COMMUNICATION SYSTEM USING PREAMBLE, METHOD OF GENERATING THE PREAMBLE AND COMMUNICATION SYSTEM OF ENALBLING THE METHODS

摘要

PURPOSE: A communication method for sharing characteristic information by using a preamble, a method for generating a preamble, and a communication system which is applied with the same are provided to efficiently share the characteristic information of a wireless telecommunication system by minimizing an amount of an information bit. CONSTITUTION: A first repetitive pattern about a real number and a second repetitive pattern about an imaginary number at a preamble are determined in a time domain(810). The first repetitive pattern and the second repetitive pattern depend on subcarrier selection or the subcarrier sequence of selected subcarriers and the allocation of a subcarrier phase value. Two or more subcarriers are selected from a plurality of subcarriers(821). A subcarrier sequence and subcarrier phase value of the preamble, which is mapped in two or more subcarriers, are determined(822,823). A transmitter generates the preamble by mapping the subcarrier sequence and the subcarrier phase value in the selected subcarriers(830). The preamble is transmitted(840).