NTT DoCoMo Inc. announced Monday that it will launch its next-generation mobile phone service on Oct. 1 in parts of Tokyo, claiming it has improved on reception problems that plagued a trial service that began in May.

NTT DoCoMo Inc. President Keiji Tachikawa holds a 3G mobile phone during a news conference.

But DoCoMo also revealed that none of the planned moving images and music distribution services for the higher-speed data capability -- namely i-motion, M-stage visual and M-stage music -- will start on the day the world's first full-fledged 3G service is launched.