ANTENNA-DIVERSITY RECEIVER AND METHOD OF OPERATING AN ANTENNA-DIVERSITY RECEIVER AND A TRANSMITTER IN A FREQUENCY-HOPPING COMMUNICATION SYSTEM

摘要

An antenna-diversity receiver receives data units from a transmitter in a frequency-hopping communication system . The frequency-hopping system has a channel set comprising of two or more channels, each channel having its own frequency range, wherein the channel set comprises a set of two or more advertising channels and a set of two or more data channels, and wherein the receiver comprises an antenna set comprising of two or more antennas (20, 22).;The transmitter has an advertising mode in which the transmitter transmits an advertising signal and switches from one advertising channel to another advertising channel in accordance with a sequence of advertising intervals, each advertising interval comprising one or more advertising packets;;The receiver has an antenna sampling mode in which the receiver receives, successively for each combination of an antenna of the antenna set and an advertising channel of the set of advertising channels, one or more advertising packets on the respective advertising channel using the respective antenna, and in which the receiver determines a corresponding signal quality value and selects, for each data channel, a respective antenna from the antenna set on the basis of the determined signal quality values.