RADIO PARAMETER GROUP GENERATING APPARATUS, TRANSMITTER AND RECEIVER

摘要

A radio parameter group generating apparatus has a means for deriving a set of radio parameter groups defining a symbol that has an effective symbol portion having the same duration as the effective symbol portion defined by another set of radio parameter groups and that also has a guard interval portion having a different duration than the guard interval portion defined by the other set of radio parameter groups. The present apparatus has a means for deriving a set of radio parameter groups such that the occupation percentage of a guard interval portion to a single symbol defined by the set of radio parameter groups is equal to the occupation percentage of a guard interval portion to a single symbol defined by another set of radio parameter groups.