Method for collecting per call measurement data and mobility management device and base station thereof

A mobility management entity MME device for collecting per call measurement data PCMD, comprising:

• a receiving device for receiving an instruction to start/stop PCMD collection and for receiving a message including an indication of whether the base station is capable of collecting the PCMD;
• and
• a controlling device for controlling, when the instruction to start the PCMD collection is received, a sending device to send a message including an indication of starting collecting the PCMD to at least one base station capable of collecting the PCMD, and controlling, when the instruction to stop the PCMD collection is received, the sending device to send a message including an indication of stopping collecting the PCMD to the at least one base station capable of collecting the PCMD;
• and
• the sending device for sending the message including the indication of starting and/or stopping collecting the PCMD to the at least one base station capable of collecting the PCMD.

A base station for collecting per call measurement data PCMD, comprising:

• a receiving device for receiving a message sent from a mobility management entity MME device, which includes an indication of starting and/or stopping collecting the PCMD;
• a collecting device for collecting the PCMD for at least one user equipment UE connection when the message including the indication of starting collecting the PCMD is received;
• and
• a sending device for sending a message including the collected PCMD to the MME device and for sending a message including an indication of whether the base station is capable of collecting the PCMD to the MME device.