| 摘要 |
PCT No. PCT/FI96/00700 Sec. 371 Date Nov. 24, 1997 Sec. 102(e) Date Nov. 24, 1997 PCT Filed Dec. 27, 1996 PCT Pub. No. WO97/24816 PCT Pub. Date Jul. 10, 1997The invention relates to calculating an estimate representing noise and signal quality, and to a receiver of a radio system. The highest value of a correlation vector is compared either to the second highest value or to the mean value of the other values. If a specific spreading code is used in the reception of the signal, the comparison forms a ratio of the signal and disturbance, the ratio being applicable particularly to combining signals from the diversity branches of a diversity receiver, whereby the method makes it possible to combine the signals even prior to detection. If the reception employs a spreading code with which no signal received by the receiver has been transmitted, it is possible by comparing the correlation values to form a noise quality estimate, an estimate value higher of which meaning that the receiver is receiving a signal and not just noise.
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