GEO-Mobile Radio Interface Specifications (Release 2); General Packet Radio Service; Part 5: Radio interface physical layer specifications; Sub-part 4: Modulation; GMPRS-1 05.004
3.3.1
3.2.1
3.1.1
2.3.1
2.2.1
2.1.1
1.3.1
1.2.1
1.1.1