MODULATING SYSTEM WITH PLURALTY OF CARRIERS WITH CYCLIC DELAYS DIVERSITY Russian patent published in 2009 - IPC H04L27/26 

FIELD: communication means.

SUBSTANCE: invention pertains to data transmission within wireless communication system. There are described methods of data transmission with diversity of cyclic delays and off-set of pilot-signal. To diverse cyclic delays OFDM-symbols are generated, with various durations of cyclic delays. Durations of cyclic delays for OFDM-symbols may be selected time-version against durations of cyclic delays for OFDM-symbols, transmitted by the neighboring base-station. FDM pilot signal is generated and multiplexed into multiple sets of sub-ranges into periods of symbols. Signals for the second method of radio communication (for example, W-CDMA) may be generated for the data subject to transmission by this method of radio communication. OFDM-symbols are multiplexed into time intervals, used for OFDM, and signals for the second radio communication method (W-CDMA) are multiplexed into time intervals used for that radio communication method. One or several modulated signals may be generated based on multiplexed OFDM-symbols and signals. Each modulated signal is transmitted by the corresponding aerial.

EFFECT: improved efficiency of broadcasting data transmission.

39 cl, 11 dwg