Wireless communication apparatus, base station system, and wireless communication apparatus controlling method

A base station system comprising a baseband processing device and a wireless communication apparatus, wherein

• the baseband processing device includes:
• a baseband processing unit that performs a baseband processing process on either a signal received from the wireless communication apparatus or a signal to be transmitted to the wireless communication apparatus;
• and
• a controlling unit that allocates the wireless communication apparatus on which the process is to be performed, to the baseband processing unit, and
• the wireless communication apparatus includes:
• a selecting unit that selects a first mode in which communication between the baseband processing device and a mobile communication terminal is intermediated when a first condition is satisfied and that selects a second mode in which communication between another wireless communication apparatus and the mobile communication terminal is intermediated when a second condition is satisfied;
• a wireless processing unit that, when the selecting unit selects the first mode, receives a wireless signal from the mobile communication terminal, converts the received wireless signal into a baseband signal, and transmits the baseband signal to the baseband processing unit, and also, receives a baseband signal from the baseband processing unit, converts the received baseband signal into a wireless signal, and transmits the wireless signal to the mobile communication terminal;
• and
• a repeater unit that, when the selecting unit selects the second mode, transfers a signal output from said another wireless communication apparatus to the mobile communication terminal, and also transfers a signal output from the mobile communication terminal to said another wireless communication apparatus.

A wireless communication apparatus controlling method comprising:

• detecting that one of first and second conditions is satisfied;
• when the first condition is satisfied, receiving a wireless signal from a mobile communication terminal, converting the received wireless signal into a baseband signal, and transmitting the baseband signal to a baseband processing device, and also, receiving a baseband signal from the baseband processing device, converting the received baseband signal into a wireless signal, and transmitting the wireless signal to the mobile communication terminal;
• and
• when the second condition is satisfied, transferring a signal output from said another wireless communication apparatus to the mobile communication terminal, and also, transferring a signal output from the mobile communication terminal to another wireless communication apparatus.