Methods, user equipment and network node for performing channel state measurements

A user equipment (UE) comprising:

• processing circuitry and memory, the memory comprising instructions executable by the processing circuitry whereby the UE is operative to:
• perform a plurality of signal power measurements of received signal power, each signal power measurement being associated with a respective subframe of a first plurality of subframes;
• evaluate, for each of the respective subframes, a power difference between an estimated received signal power and the received signal power;
• determine a second plurality of subframes by excluding those subframes from the first plurality of subframes in which the power difference exceeds a certain power threshold;
• and
• generate channel state information as a function of the signal power measurements of the second plurality of subframes.

A non-transitory computer readable medium storing a computer program product for controlling a User Equipment (UE) of a radio access network, the computer program product comprising software instructions which, when run on processing circuitry of the UE, causes the UE to:

• perform a plurality of signal power measurements of received signal power, each signal power measurement being associated with a respective subframe of a first plurality of subframes;
• evaluate, for each of the respective subframes, a power difference between an estimated received signal power and the received signal power;
• determine a second plurality of subframes by excluding those subframes from the first plurality of subframes in which the power difference exceeds a certain power threshold;
• and
• generate channel state information as a function of the signal power measurements of the second plurality of subframes.

A network node (eNB) of a radio access network adapted for communicating with a User Equipment (UE) over a communication channel, the eNB comprising:

• processing circuitry and memory, the memory comprising instructions executable by the processing circuitry whereby the eNB is operative to:
• generate information, to be sent to the UE, indicating a plurality of subframes where reference signals transmitted on an unlicensed carrier by a Secondary Cell (SCell) are available for received signal power measurements, wherein the information to be sent to the UE comprises an identifier of each of the plurality of subframes of the unlicensed carrier;
• and
• evaluate a measurement report received from the UE, the measurement report comprising a respective received signal power measurement for each of the plurality of subframes.