Method and apparatus for enabling a mobile station to adapt its revision level based on network protocol revision level

摘要

The disclosure relates to a method of operating a mobile station (10) and a mobile station. A protocol version of a serving general packet radio service support node (30) of a general packet radio service core network is determined from a value of at least one received bit. A quality of service information element in a message is adapted according to the determined protocol version of the serving general packet radio service support node.