GEO-Mobile Radio Interface Specifications (Release 3); Third Generation Satellite Packet Radio Service; Part 5: Radio interface physical layer specifications; Sub-part 6: Radio Subsystem Link Control; GMR-1 3G 45.008 (V3.2.1)
The present document specifies several control aspects for the radio link between the Mobile Earth Station (MES) and the Gateway Station (GS) in the GMR-1 3G Mobile Satellite System. It specifies the operation of power control and defines dead link detection. It makes requirements for DTX operation. The present document also defines requirements for the MES for monitoring system information@ as prerequisites to system access@ and upon exit from dedicated mode. It makes requirements for spot beam selection and reselection. It defines the nature of the measurements that the MES uses to implement these processes. Timing and frequency control aspects of link control are to be found in GMR-1 3G 45.010 [6]@ and messages for timing and frequency control are defined in GMR-1 3G 44.008 [3].