Channel estimation in a MIMO UWB channel

摘要

MIMO UWB communications apparatus is configured to transmit a channel estimation sequence comprising a plurality of sequentially transmitted symbols in accordance with a first band-hopping sequence from one antenna of the apparatus, while another antenna is transmitting another sequence of channel estimation symbols in accordance with another, complimentary band-hopping sequence. A legacy device will be capable of synchronising with the channel estimation signals sent in accordance with the first band-hopping sequence, while a MIMO receiver will be able to determine channel estimates for all MIMO channels on the basis of the combined channel estimation transmissions.