A method of scheduling and making material time balancing decisions for a set of balanced tasks. The outer tube has slots accompanying adjustable electromagnetic coupling structures. The antenna array may be used in various installations, including cellular, PCS, MMDS, LMDS and in-building communication systems such as LANS or WLANS. The results of multiplications by the multipliers when the coefficient groups kb1 to kb3 are inputted, are added between corresponding multipliers by adders. A connector piece connects the deployment ramp to the vehicle. The BWE encoding unit generates as the extension data a first parameter which specifies a lower subband which is to be copied as the higher frequency spectrum from among a plurality of the lower subbands which form the lower frequency spectrum obtained by the MDCT unit and a second parameter which specifies a gain of the lower subband after being copied.