| 摘要 |
The present invention relates to a receiver for a radio network. The receiver comprises a receiving unit and a channel estimation unit (18). The receiving unit is arranged to receive a number of time domain signals forming a plurality of symbols, each symbol having a cyclic prefix. The channel estimation unit is (18) arranged to determine a channel estimate (hos) in the time domain for a user (u) based on known pilots in the signals received by the receiving unit, and to determine the channel estimate (hos) estimate (hos) for a user (u) using a DFT matrix (V) with a fundamental period related to a number (Nc) of sub-carriers associated to said user (u), wherein the channel estimate (hos) has a length of L taps, L being less that the number (Nc) of sub-carriers associated to said user. The present invention also relates to a method for determining a channel estimate (hos) for a radio channel.
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