Reception quality in plural antenna receivers

摘要

A method for assessing reception quality of a common transmission by a set of receivers comprising deriving a reception quality metric for different combinations of the set, and assessing each against a threshold which varies according to the number of receivers in the respective combination. A received signal contains packets having CRC check data. Each packet is divided in two and a separate CRC check done for each half. Copies of each received packet are made so that multiple comparisons can be done using every combination of receive antennas. A false check metric is computed, defined as the ratio of false checks performed on the combinations of received packets to the total number of checks made. Such assessment allows transmission power and/or the number of active receivers to be set according to a given reception criterion.