TIME SLOT INCLUDING REFERENCE SYMBOL USED IN TRANSMISSION NETWORK OF CDMA TYPE

摘要

PROBLEM TO BE SOLVED: To better estimate a transmission channel at high speed based on a structure of a time slot where P-sets of reference symbols occupy two separate fields even when a terminal is moving faster. SOLUTION: A time slot IT consists of P-sets of reference symbols and (N-P)-sets of symbols that are not the reference symbols, and the reference symbols strictly occupy two separate fields 41,42. A transmission channel based on the reference symbols is better estimated in the case that the reference symbols appear at the two separate fields, 1st correlation executed on the 1st reference symbol fields attains 1st estimation of the transmission channel and 2nd correlation executed on a 2nd reference symbol filed that is received is used for executing 2nd estimation of the transmission channel. The transmission channel is estimated at any time through interpolation between the two estimations and other symbols can be detected by using the estimation.