CONTENTS

Policy on Intellectual Property Right (IPR)
�1���� General objectives
�2���� Digital technology
�3���� Service types
������� 3.1���� Bearer services
������� 3.2���� Teleservices
������� 3.3���� Supplementary services
�4���� Architecture common to all digital systems
������� 4.1���� Base station layout
������� 4.2���� Channel design
������� 4.3���� Network architecture and assignment of functions
�5���� Incorporation of externally developed specification material
�6���� Digital cellular systems and their enhancements
������� 6.1���� GSM
������� 6.2���� TIA/EIA-136 TDMA
������� 6.3���� TIA/EIA-95 CDMA
������� 6.4���� PDC