Preamble generator for a multi-band - ofdm - transmitter - reception - apparatus and method for generating a preamble for a multi-band - ofdm - transmitter - reception - apparatus

摘要

Preamble generator for a multi-band - - - frequency division multiplexing (ofdm -) transmitter - reception - device of a wireless personal network (wpans), which is between a period of time - frequency - nesting - mode (tfi), in the data packets from the transmitter - reception - device in different frequency bands in accordance with a predetermined frequency - hopping - pattern to be transmitted, and a fixed frequency - nesting - mode (ffi) is switchable, in which data packets from the transmitter - reception - a device in at least a fixed frequency band are sent,with the preamble generator in the fixed frequency - nesting - mode (ffi) a predetermined preamble of data packets or scrambles scrambled, in that the preamble with a pseudo - accident data sequence is multiplied, wherein the preamble generator a first selection unit for selection of the preamble in a function of a channel selecting signal, a second selection unit for selecting a long pseudo - accident data sequence in a function of the channel selecting signal and a third selection unit for selecting a short pseudo - accident data sequence has as a function of the channel selecting signal.