Communication system, communication method and mobile terminal

A communication system for communication with a mobile terminal comprising:

• a wide cell base station for executing communication with the mobile terminal in a wide cell;
• a plurality of narrow cell base stations for executing communications with the mobile terminal in a plurality of narrow cells included in the wide cell;
• and
• an integrated base station for executing communications with the wide cell base station and the narrow cell base stations,
• wherein:
• the wide cell base station executes communication with the mobile terminal;
• the narrow cell base stations execute only one-way communications with the mobile terminal;
• and
• the narrow cell base stations transmit the same signals to the respective narrow cells after the wide cell base station has received an information request to the narrow cells outputted from the mobile terminal.

A communication system for communication with a mobile terminal comprising:

• a wide cell base station for executing communication with the mobile terminal in a wide cell;
• a plurality of narrow cell base stations for executing communications with the mobile terminal in a plurality of narrow cells included in the wide cell;
• and
• an integrated base station for executing communications with the wide cell base station and the narrow cell base stations,
• wherein:
• the integrated base station through an optical transmission line;
• and
• the wide cell base station and the narrow cell base stations communicate with the mobile terminal through radio waves.

A communication method comprising the steps of:

• executing communication between a wide cell base station and a mobile terminal when the mobile terminal exists within a wide cell;
• and
• executing communication between narrow cell base stations and the mobile terminal when the mobile terminal exists within any one of a plurality narrow cells included in the wide cell,
• wherein:
• the wide cell base station and the narrow cell base stations execute communication respectively with the mobile terminal based on communication with an integrated base station;
• the wide cell base station executes communication with the mobile terminal on a two-way communication basis;
• the narrow cell base stations execute only one-way communication with the mobile terminal;
• and
• the narrow cell base stations repeatedly transmit the same signals in respective narrow cells after communication is set up between the wide cell base station and the mobile terminal.

A communication method comprising the steps of:

• executing communication between a wide cell base station and a mobile terminal when the mobile terminal exists within a wide cell;
• and
• executing communication between narrow cell base stations and the mobile terminal when the mobile terminal exists within any one of a plurality narrow cells included in the wide cell,
• wherein:
• the wide cell base station and the narrow cell base stations execute communication respectively with the mobile terminal based on communication with an integrated base station;
• the wide cell base station executes communication with the mobile terminal on a two-way communication basis;
• the narrow cell base stations execute only one-way communication with the mobile terminal;
• and
• the narrow cell base stations respectively transmit the same signals in the narrow cells after the wide cell base station has received an information request in the narrow cells outputted from the mobile terminal.