Method and apparatus for performing radio link monitoring and/or channel quality indicator measurement in wireless communication system

1. A method for measuring a channel in a wireless communication system, the method comprising:

receiving, by a user equipment (UE), a first measurement configuration message from a network, wherein the first measurement configuration message includes configuration information for a radio link monitoring (RLM) measurement and a channel quality indicator (CQI) measurement;

performing, by the UE, a first RLM measurement or a first CQI measurement based on the first measurement configuration;

detecting, by the UE, an in-device coexistence (IDC) interference, wherein the IDC interference is detected when two different types of radio access technology (RAT) schemes are turned on;

after detecting the IDC interference, performing, by the UE, a second RLM measurement or a second CQI measurement, based on the first measurement configuration, wherein the second RLM measurement or the second CQI measurement is performed without an avoidance of the IDC interference;

transmitting, by the UE, an IDC indication to the network, wherein the IDC indication includes one or more unusable frequencies and one or more time division multiplexing (TDM) patterns causing the IDC interference;

after transmitting the IDC indication, performing, by the UE, a third RLM measurement or a third CQI measurement, based on the first measurement configuration, wherein the third RLM measurement is performed with the avoidance of the IDC interference, and the third CQI measurement is performed without the avoidance of the IDC interference;

receiving, by the UE, a second measurement configuration message from the network, wherein the second measurement configuration message includes one or more TDM patterns resolving the IDC interference;

after receiving the second measurement configuration message, performing, by the UE, a fourth RLM measurement or a fourth CQI measurement, based on the second measurement configuration, wherein the fourth RLM measurement or the fourth CQI measurement is performed with the avoidance of the IDC interference.

2. The method of claim 1 , wherein the third RLM measurement is performed excluding subframes affected by the IDC interference.

3. The method of claim 1 , wherein the fourth RLM measurement is performed excluding subframes affected by the IDC interference.

4. The method of claim 1 , wherein the one or more TDM patterns resolving the IDC interference indicate one or more discontinuous reception (DRX) patterns that resolve the IDC interference.

5. A terminal device for measuring a channel in a wireless communication system, the terminal device comprising:

a radio communication transceiver for transmitting and receiving radio signals to and from an outside; and

a control processor connected to the radio communication transceiver, and configured to:

control the radio communication transceiver to receive a first measurement configuration message from a network, wherein the first measurement configuration message includes configuration information for a radio link monitoring (RLM) measurement and a channel quality indicator (CQI) measurement;

perform a first RLM measurement or a first CQI measurement based on the first measurement configuration;

detect an in-device coexistence (IDC) interference, wherein the IDC interference is detected when two different types of radio access technology (RAT) schemes are turned on within a user equipment, UE;

after detecting the IDC interference, perform a second RLM measurement or a second CQI measurement, based on the first measurement configuration, wherein the second RLM measurement or the second CQI measurement is performed without an avoidance of the IDC interference;

control the radio communication transceiver to transmit an IDC indication to the network, wherein the IDC indication includes one or more unusable frequencies and one or more time division multiplexing (TDM) patterns causing the IDC interference;

after transmitting the IDC indication by the radio communication transceiver, perform a third RLM measurement or a third CQI measurement, based on the first measurement configuration, wherein the third RLM measurement is performed with the avoidance of the IDC interference, and the third CQI measurement is performed without the avoidance of the IDC interference;

control the radio communication transceiver to receive a second measurement configuration message from the network, wherein the second measurement configuration message includes one or more TDM patterns resolving the IDC interference;

after receiving the second measurement configuration message by the radio communication transceiver, perform a fourth RLM measurement or a fourth CQI measurement, based on the second measurement configuration, wherein the fourth RLM measurement or the fourth CQI measurement is performed with the avoidance of the IDC interference.