| 摘要 |
The invention relates to a method for establishing a quality indicator (CQI) of a radio transmission channel in a first cell of a cellular network using a plurality of orthogonal frequency-division multiplexed subcarriers for transmitting data, said method including: a first transmitter device (NB1) located in the first cell transmitting (11) a reference control signal (SP1) including a total-load control signal (SPCT) modulating one or more of said orthogonal subcarriers, during one or more first symbol times dedicated to the transmission of symbols other than data symbols, and a useful-load control signal (SPCE) modulating one or more orthogonal subcarriers during at least one second symbol time dedicated to the transmission of data symbols; for every cell adjacent to the first cell in the cellular network, a transmitting device (NB2) located in said adjacent cell transmitting (13) an interfering control signal (SP2) modulating, during the first symbol time(s) during which the total-load control signal (SPCT) modulates one or more subcarriers, said subcarrier modulated by the total-load control signal (SPCT); a receiving device (M) located in the first cell measuring (20) a quality indicator of the channel under the total load (CQICT) using the total-load control signal (SPCT) and a quality indicator of the channel under the useful load (CQICE) using the useful-load control signal (SPCE); and determining (30) the quality indicator (CQI) of the radio transmission channel according to the quality indicator of the channel under the useful load (CQICE) and the quality indicator of the channel under the total load (CQICT). |
