European digital cellular telecommunications system (Phase 2) - Rate adaption on the Mobile Station - Base Station System - (MS-BSS) Interface - (GSM 04.21)
This European Telecommunication Standard (ETS) defines the rate adaption functions to be used in GSM PLMN Mobile Stations for adapting terminal interface data rates to the MS-BSS interface data rates in accordance with GSM 03.10 The provision of these functions will depend on the services a particular station is designed to support.