Spectrum estimation for low-load LTE signals

摘要

A method includes receiving a signal in a communication terminal. A power spectral density, which the signal would have under full-load conditions of a transmitter transmitting the signal, is estimated based on the received signal. An operation is performed in the communication terminal using the estimated power spectral density.

主权项

1. A method, comprising:
receiving a signal in a communication terminal; estimating, based on the received signal, a power spectral density that the signal would have under full-load conditions of a transmitter transmitting the signal, by defining multiple hypotheses, each hypothesis specifying a respective set of one or more of time-frequency bins in which the signal is hypothesized to comprise reference signals, measuring a respective received power level of the signal in each of the sets, selecting a hypothesis in which the received power level is maximal, and estimating the power spectral density under the full-load conditions based on the selected hypothesis; and performing an operation in the communication terminal using the estimated power spectral density.