Establishment of the indicator of the quality of a radio channel by decorrelation of the radio conditions and the activity network

摘要

The present invention relates to a process for the establishment of a quality indicator (cqi) of a radio transmission channel in a first cell of a cellular network using a plurality of multiplexed in - orthogonal carrier frequency in order to transmit data, this method comprising: the transmission (11), by a first emitter device (nb) located in the first cell, of a pilot signal of reference (sp) comprising a pilot signal of the total load (spct) modulating one or more of these under - orthogonal carriers, during one or several first symbol time dedicated to the symbol transmission of data symbols, and a pilot signal of the actual load (spce) modulating one or several under - orthogonal carriers for at least a second symbol time dedicated to the transmission of data symbols, for each cell in the region of the first cell in the cellular network, the transmission (13), by a transmitter (nb) located in the adjacent cell, of a pilot signal interfere (sp) modulating, during the first symbol time during which the pilot signal of the total load (spct) module one or more carriers under -) - carrier modulated by the pilot signal of the total load (spct); the measurement (20), by a receiver device (m) located in the first cell, a quality indicator of the channel in the total load (cqict) by means of the pilot signal of the total load (spct) and a quality indicator of the channel in the actual load (cqice) by means of the pilot signal of the actual load (spce); and the determination (30) of the quality indicator (cqi) of the radio transmission channel from the quality indicator of the channel in the actual load (cqice) and the quality indicator of the channel in the total load (cqict).