Physical layer procedures for LTE in unlicensed spectrum

An apparatus for performing control plane measurements in a wireless device, comprising:

• a radio-frequency transceiver configured to receive radio-frequency signals over an unlicensed spectrum across multiple sub-frames;
• a memory;
• and
• a processor communicatively coupled to the radio-frequency transceiver and the memory, the processor and the memory configured to:
• perform, on the radio-frequency signals received over the unlicensed spectrum across the multiple sub-frames, radio resource management (RRM) measurements of a cell;
• identify a first subset of the RRM measurements associated with a first subset of the sub-frames including opportunistic transmissions and a second subset of the RRM measurements associated with a second subset of the sub-frames including guaranteed transmissions;
• determine one or more RRM measurement values based on both the first subset of the RRM measurements and the second subset of the RRM measurements;
• measure reference signal received power (RSRP) with the radio-frequency transceiver to obtain RSRP measurements associated with the first subset of the sub-frames and RSRP measurements associated with the second subset of the sub-frames;
• and
• determine one of the RRM measurement values by combining, into a single RSRP value, the RSRP measurements associated with the first subset of the sub-frames and the RSRP measurements associated with the second subset of the sub-frames
• compare the one or more RRM measurement values to a threshold value or an RRM measurement value for another cell to detect an RRM event;
• and
• report the RRM event to the cell.

An apparatus for performing control plane measurements in a wireless device, comprising:

• means for performing, on radio-frequency signals received via a radio-frequency transceiver over an unlicensed spectrum across multiple sub-frames, radio resource management (RRM) measurements of a cell;
• means for identifying a first subset of the RRM measurements associated with a first subset of the sub-frames including opportunistic transmissions and a second subset of the RRM measurements associated with a second subset of the sub-frames including guaranteed transmissions;
• and
• means for determining one or more RRM measurement values based on both of the first subset of the RRM measurements and the second subset of the RRM measurements, wherein:
• the means for performing RRM measurements are further for measuring reference signal received power (RSRP) with a radio-frequency transceiver to obtain RSRP measurements associated with the first subset of the sub-frames and RSRP measurements associated with the second subset of the sub-frames, and the means for determining the one or more measurement values are further for determining one of the RRM measurements by combining, into a single RSRP value, the RSRP measurements associated with the first subset of the sub-frames and the RSRP measurements associated with the second subset of the sub-frames;
• means for comparing the one or more RRM measurement values to a threshold value or an RRM measurement value for another cell to detect an RRM event;
• and
• means for reporting the RRM event to the cell.

A non-transitory computer-readable medium storing computer executable code for execution by a processor for performing control plane measurements in a wireless device, comprising:

• code for performing, on radio-frequency signals received via a radio-frequency transceiver over an unlicensed spectrum across multiple sub-frames, radio resource management (RRM) measurements of a cell, wherein the code for performing the RRM measurements includes code for measuring reference signal received power (RSRP) with the radio-frequency transceiver to obtain RSRP measurements associated with a first subset of the sub-frames including opportunistic transmissions and RSRP measurements associated with a second subset of the sub-frames including guaranteed transmissions;
• code for identifying a first subset of the RRM measurements associated with the first subset of the sub-frames and a second subset of the RRM measurements associated with the second subset of the sub-frames;
• and
• code for determining one or more RRM measurement values based on both of the first subset of the RRM measurements and the second subset of the RRM measurements, wherein the code for determining one of the RRM measurement values includes code for combining, into a single RSRP value, the RSRP measurements associated with the first subset of the sub-frames and the RSRP measurements associated with the second subset of the sub-frames;
• code for comparing the one or more RRM measurement values to a threshold value or an RRM measurement value for another cell to detect an RRM event;
• and
• code for reporting the RRM event to the cell.