Mitsubishi Electric Corporation

Ntt Docomo, Inc.

Fumiki Hasegawa

Mitsuru Mochizuki

Koji Ono

Masayuki Nakazawa

Kuniyuki Suzuki

Takayuki Nonami

Naohito Tomoe

Takao Someya

Takefumi Yamada

Hiroki Zukawa

Toshirou Kawahara

Yutaka Fuke

A base station device is configured to set, for each communication terminal device, a radio format for signals transmitted to and received from the communication terminal device. The radio format is set for each communication terminal device in accordance with, for example, a type of use including a moving speed of the communication terminal device. The base station device may be configured to change the radio format for the communication terminal device based on the information about a change in the environment of a radio communication between the communication terminal device and the base station device and a change including the communication terminal device's location. The signals transmitted and received between the base station device and the communication terminal device include radio formats in which at least one of a length of a symbol of the signal and a length of a cyclic prefix in an OFDM scheme differs.

Communication system, base station, and communication terminal for controlling interference from neighboring cells

Communication system

A base station has a first wireless communication unit that communicates with mobile stations for offering a first radio communication service to the mobile stations, and a second wireless communication unit that communicates with mobile stations for offering a second radio communication service that is different from the first radio communication service to the mobile stations. At the base station, a communication service continuation restrictor is provided that restricts operation of the base station as to whether or not, when it is detected that either one of the first or the second radio communication service is not executable, another radio communication service should be continued. Whether or not the other communication service should be continued can be set at the communication service continuation restrictor.

Base station and communication system to restrict communication service

Growing community of inventors

Tokyo, Japan

Fumiki Hasegawa