Repeater

A repeater comprising:

• a received signal analysis section that analyzes information of a broadcast channel of a received signal from a base station to generate analysis information;
• a frequency selection section that selects frequencies in order from a frequency of a signal of a lowest path loss value according to the analysis information;
• a downlink signal amplification section that amplifies downlink signals per frequency selected in the frequency selection section;
• an uplink signal amplification section that amplifies uplink signals per frequency selected in the frequency selection section;
• and
• a stop control section that, when reception quality is equal to or lower than a threshold according to the analysis information, controls the downlink signal amplification section and the uplink signal amplification section to stop operating and not output signals.

A repeater comprising:

• a received signal analysis section that analyzes information of a broadcast channel of a received signal from a base station to generate analysis information;
• a frequency selection section that selects frequencies in order from a frequency of a signal of lowest base station interference power according to the analysis information;
• a downlink signal amplification section that amplifies downlink signals per frequency selected in the frequency selection section;
• an uplink signal amplification section that amplifies uplink signals per frequency selected in the frequency selection section;
• and
• a stop control section that, when reception quality is equal to or lower than a threshold according to the analysis information, controls the downlink signal amplification section and the uplink signal amplification section to stop operating and not output signals.

A repeater comprising:

• a received signal analysis section that analyzes information of a broadcast channel of a received signal from a base station to generate analysis information;
• a frequency selection section that selects frequencies in order from a frequency of a signal of highest reception quality according to the analysis information;
• a downlink signal amplification section that amplifies downlink signals per frequency selected in the frequency selection section;
• an uplink signal amplification section that amplifies uplink signals per frequency selected in the frequency selection section;
• and
• a stop control section that, when base station interference power is equal to or higher than a threshold according to the analysis information, controls the downlink signal amplification section and the uplink signal amplification section to stop operating and not output signals.

A repeater comprising:

• a received signal analysis section that analyzes information of a broadcast channel of a received signal from a base station to generate analysis information;
• a frequency selection section that selects frequencies in order from a frequency of a signal of a lowest path loss value according to the analysis information;
• a downlink signal amplification section that amplifies downlink signals per frequency selected in the frequency selection section;
• an uplink signal amplification section that amplifies uplink signals per frequency selected in the frequency selection section;
• and
• a stop control section that, when base station interference power is equal to or higher than a threshold according to the analysis information, controls the downlink signal amplification section and the uplink signal amplification section to stop operating and not output signals.

A repeater comprising:

• a received signal analysis section that analyzes information of a broadcast channel of a received signal from a base station to generate analysis information;
• a frequency selection section that selects frequencies in order from a frequency of a signal of lowest base station interference power according to the analysis information;
• a downlink signal amplification section that amplifies downlink signals per frequency selected in the frequency selection section;
• an uplink signal amplification section that amplifies uplink signals per frequency selected in the frequency selection section;
• and
• a stop control section that, when the base station interference power is equal to or higher than a threshold, controls the downlink signal amplification section and the uplink signal amplification section to stop operating and not output signals.