DEVICE AND METHOD OF CHANNEL ASSESSMENT IN SYSTEM OF CELLULAR COMMUNICATIONS WITH MULTIPLEXING WITH ORTHOGONAL FREQUENCY DISTRIBUTION, WHICH USES MULTIPLE TRANSMITTING ANTENNAE

摘要

FIELD: physics. ^ SUBSTANCE: invention is related to device and method of channel assessment in communications system with OFDM. Device and method of channel assessment with application of signals of preambles received from servicing Unit B and neighboring Units B, each having N(>1) of transmitting antennae, in UE, which has M(>1) of receiving antennae, in wide-range system of wireless communication. Unit of calculation of Units B number calculates maximum number N of channel-assessed Units B, using preambles length, number of antennae in every Unit B and number of paths of multiradiate distribution. Generator of matrixes of preambles of cells multiplicity generates matrix x of preambles of cells multiplicity by generating of matrix of Unit B preambles for every of Units B and selection of matrixes of N preambles of Units B in accordance with capacity of reception among matrixes of Units B preambles. Facility of channel assessment performs channel assessment, using x and signals received through M of antennae for the period of preambles reception. ^ EFFECT: accurate channel assessment by ruling out intercellular interference in communications system MIMO. ^ 28 cl, 20 dwg