Receiver and a method for mobile communications

摘要

In a method and a mobile communications receiver for processing signals from a first cell and a second cell a timing of the signal from the first cell and the second cell is obtained. A timing difference (δ) between the timings of signals from the first and the second cell is determined and based on that a timing (κ) for a window for discrete Fourier transform, DFT, processing is adjusted. DFT processing of the signals using the timing (κ) of the DFT window is then performed.

主权项

1. A method, in a mobile communications receiver, of processing signals from a first cell and a second cell, the method comprising:
obtaining a timing of the signal from the first cell; obtaining a timing of the signal from the second cell; determining a timing difference between the timings of signals from the first and the second cell; adjusting a timing for a window for discrete Fourier transform, DFT, processing based on the timing difference; performing DFT processing of the signals using the timing of the DFT window; obtaining a power delay profile of the first cell and a power delay profile of the second cell, the power delay profiles comprising a number of channel taps having respective tap powers; and adjusting the timing of the window by minimizing the sum, over all channel taps, of the respective tap power multiplied with a respective number of samples that are covered by the FFT window but are outside a symbol of interest.