Apparatus and method for performing measurement report considering in-device coexistence interference

A method for transmitting a measurement report by an UE in a wireless communication system, comprising:

• detecting interference caused by transmission of a first frequency band in a first network system against reception of a second frequency band in a second network system;
• transmitting assistant information indicating occurrence of the interference or a probability of occurrence of interference of the second frequency band;
• obtaining at least one of measurement samples by performing measurement about the second frequency band based on at least one among a first measurement rule obtaining measurement samples in an interval when the interference does not occur, a second measurement rule obtaining measurement samples in an interval when the interference does not occur and measurement samples by removing in-device co-existence interference by using an interference removal method in an interval when the interference occurs, and a third measurement rule obtaining a first measurement sample reflecting the interference and a second measurement sample by removing the interference in an interval when the interference occurs, and
• transmitting a measurement report including measurement values obtained by filtering of the at least one of measurement samples.

An eNB receiving a measurement report in a wireless communication system, comprising:

• a receiver receiving assistant information indicating occurrence of interference caused by transmission of a first frequency band in a first network system against reception of a second frequency band in a second network system or a probability of occurrence of the interference from an UE;
• and
• a transmitter transmitting responding information indicating coordination of the interference based on the assistant information to the UE,
• wherein the receiver receives a measurement report including measurement values obtained by filtering of at least one of measurement samples obtained by performing measurement about the second frequency band based on at least one among a first measurement rule obtaining measurement samples in an interval when the interference does not occur, a second measurement rule obtaining measurement samples in an interval when the interference does not occur and measurement samples by removing in-device coexistence interference by using an interference removal method in an interval when the interference occurs, and a third measurement rule obtaining a first measurement sample reflecting the interference and a second measurement sample by removing the interference in an interval when the interference occurs from the UE.

A user equipment (UE) transmitting a report, comprising:

• an interference detection unit detecting In-Device Coexistence (DS) interference caused by transmission through a first frequency band of a first network against reception through a second frequency band of a second network;
• an assistant information generation unit generating assistant information indicating occurrence or expectation of the IDC interference;
• a measurement controller obtaining measurement values not including the IDC interference and generating the measurement report including the measurement values;
• and
• a transmitter transmitting the assistant information and the measurement report to an evolved NodeB (eNB).

A method for transmitting a report, comprising:

• detecting In-Device Coexistence (IDC) interference caused by transmission through a first frequency band of a first network against reception through a second frequency band of a second network;
• transmitting assistant information indicating occurrence or expectation of the IDC interference to an evolved NodeB (eNB);
• and,
• transmitting the measurement report including measurement values without the IDC interference, to the eNB.