Method for performing measurement and terminal

1. A method for performing measurements, the method performed by a user equipment (UE) and comprising:

receiving a measurement subframe pattern for a neighbor cell and a measurement timing configuration for a discovery signal;

applying both of the measurement subframe pattern and the measurement timing configuration,

wherein the measurement subframe pattern for the neighbor cell is not identical to the measurement timing configuration for the discovery signal;

selecting at least one subframe to perform a measurement; and

performing the measurement by using the discovery signal of the neighbor cell on the at least one selected subframe.

2. The method of claim 1 , wherein the at least one selected subframe corresponds to at least one overlapped subframe between the measurement subframe pattern and the measurement timing configuration.

3. The method of claim 1 , wherein the selecting step includes:

selecting specific subframes based on the measurement subframe pattern; and

selecting the at least one subframe among the specific subframes based on the measurement timing configuration.

4. The method of claim 1 , wherein the measurement timing configuration is configured per carrier frequency.

5. The method of claim 1 , further comprising:

if the neighbor cell is in a deactivated state, using the discovery signal rather than a cell-specific reference signal (CRS) to perform the measurements.

6. The method of claim 1 , wherein the discovery signal is a signal based on at least one of a cell-specific reference signal (CRS), a channel-state information reference signal (CSI-RS), a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).

7. The method of claim 1 , wherein if the measurement is for measuring a received signal strength indicator (RSSI), the measurement is performed on all orthogonal frequency division multiplexing (OFDM) symbols of a subframe.

8. A user equipment (UE) for performing measurements, comprising:

a radio frequency (RF) unit configured to receive a measurement subframe pattern for a neighbor cell and a measurement timing configuration for a discovery signal;

a processor configured to:

apply both of the measurement subframe pattern and the measurement timing configuration,

wherein the measurement subframe pattern for the neighbor cell is not identical to the measurement timing configuration for the discovery signal,

select at least one subframe to perform a measurement, and

perform the measurement by using the discovery signal of the neighbor cell on the at least one selected subframe.

9. The UE of claim 8 , wherein the at least one selected subframe corresponds to at least one overlapped subframe between the measurement subframe pattern and the measurement timing configuration.

10. The UE of claim 8 , wherein in order to select the at least one subframe, the processor is further configured to:

select specific subframes based on the measurement subframe pattern; and

select the at least one subframe among the specific subframes based on the measurement timing configuration.

11. The UE of claim 8 , wherein the measurement timing configuration is configured per carrier frequency.

12. The UE of claim 8 , wherein the processor is further configured to

if the neighbor cell is in a deactivated state, use the discovery signal rather than a cell-specific reference signal (CRS) to perform the measurements.

13. The UE of claim 8 , wherein

the discovery signal is a signal based on at least one of a cell-specific reference signal (CRS), a channel-state information reference signal (CSI-RS), a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).

14. The UE of claim 8 , wherein if the measurement is for measuring a received signal strength indicator (RSSI), the measurement is performed on all orthogonal frequency division multiplexing (OFDM) symbols of a subframe.