PHYSICAL LAYER PROCEDURES FOR LTE IN UNLICENSED SPECTRUM

摘要

A method for control plane measurements in a wireless device is described, the method comprising measuring, across multiple sub-frames received over an unlicensed spectrum, received cell-specific reference signals, CRS, from a cell to obtain CRS measurements, identifying one or both of a first subset of the CRS measurements associated with a first subset of the sub-frames including opportunistic transmissions and a second subset of the CRS measurements associated with a second subset of the sub-frames including guaranteed transmissions, computing one or both of a first signal to interference plus noise ratio, SINR, value for the first subset of the CRS measurements and a second SINR value for the second subset of the CRS measurements, and monitoring a radio link condition of the wireless device based at least in part on the first SINR value computed for the first subset of CRS measurements or the second SINR value computed for the second subset of CRS measurements. Also, a corresponding apparatus and a corresponding computer-readable medium are described.