FIELD: communication means.
SUBSTANCE: invention pertains to wireless communication systems. As per the method, first expected coverage zones are defined for the plurality of transfers subject to transmission within several time intervals. Length of the cyclic prefix for these transfers is selected based on the expected coverage zones. Length of the cyclic prefix for each of the transfers may be selected out of the set of permissible cyclic prefix lengths based on the expected coverage zone for the transfer, dislocation of the pilot-signal, etc. For example, the shortest length of the cyclic prefix may be selected for each of the local transfers, and the longest length of the cyclic prefix may be selected for each of broadcasting transfers. Selected length of the cyclic prefix may be transported to the terminals. Transfers are processed (for example, OFDM-modulation is conducted) on the bases of the selected length of the cyclic prefix. Length of the cyclic prefix may be periodically selected, for example in every super-frame.
EFFECT: reduced negative effect of delays dispersion.
33 cl, 17 dwg
Authors
Dates
2009-09-27—Published
2005-06-03—Filed