A method controls transport network layer congestion detection in HSDPA systems. The method involves detecting, at an SRNC, a condition requiring the disabling, at a Node B, of measurements performed on certain fields of a data frame for detecting congestion for certain packet flows; sending, from the SRNC to the Node B, a command for disabling said measurements for the concerned packet flows; and resetting, at the Node B, any measurement performed until reception of said command for disabling the congestion detection.