The invention relates to a method for reconfiguring a cellular radio network connection comprising a network part having a connection to a mobile station through at least one radio bearer. According to the invention, a first party of the connection, i.e. the network part or the mobile station, sends a second party of the connection, i.e. the mobile station or the network part, a reconfiguration request message concerning at least one radio bearer. The second party of the connection possibly replies to this by sending the first party of the connection a reply message to the radio bearer reconfiguration request message. The radio bearer reconfiguration request message comprises at least one radio bearer identifier and, for example, bearer quality of service of the radio bearer in question. The possible reply message comprises at least one radio bearer identifier and possibly also bearer quality of service assigned to the radio bearer in question, or a cause for a failed reconfiguration of the radio bearer in question.