FIELD: communication systems which support multi-access with orthogonal frequency division, in particular, device and method for adaptive selection of sub-channels.
SUBSTANCE: wireless communication system divides whole frequency band onto a set of bands of sub-carriers and includes a set of sub-channels, each one of which includes a set of sub-carrier bands. Number of sub-carrier groups equals the number of base stations, included in the system, and they are created by classification of sub-carrier bands. For a certain base station, corresponding sub-carrier bands are detected in each group, in accordance to a series. Sub-carrier bands, detected in each group, are selected as a sub-channel of a certain base station. Further, indexes of sub-carrier groups, to which each sub-carrier belongs, making up the sub-channel, change each time when sub-channel is selected to achieve required advantage of separation.
EFFECT: ensured time-frequency two-dimensional selection of sub-carriers in OFDMA communication system.
8 cl, 5 dwg, 2 tbl
