ETSI - EN 301 021
Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Time Division Multiple Access (TDMA) Point-to-Multipoint DRRS in Division Duplex (FDD) Bands in the Range 3 GHz to 11 GHz
|Publication Date:||1 April 1998|
The present document specifies the minimum and optional requirements for system parameters of Time Division Multiple Access (TDMA) Point to Multipoint (P-MP) Radio Systems in the terrrestrial Fixed Service operating in frequency bands in the range 3 GHz to 11 GHz.
The present document covers the following typical Point-to-Multipoint (P-MP) applications:
- Voice-band data;
- telex, related to analogue interfaces;
- data up to 64 kbit/s or beyond with optional interfaces;
- digital video;
- digital audio, related to digital interfaces.
Radio terminals from different manufacturers are not intended to inter-work at radio frequency (i.e. no common air interface).
The present document defines the requirements of radio terminal and radio-relay equipment including the interfaces. The requirements for multiplex, network management and antenna / feeder equipment may be addressed elsewhere.
Testing to the present document will be undertaken with the guidance of a generic test methods document EN 301 126 , which is under preparation.
The present document covers fixed P-MP services operating in the 3,5 GHz, 3,7 GHz and 10,5 GHz bands and having the frequency plans as given in ERC Recommendations 14-03 , 12-08  and 12-05 , respectively.
The present document covers Time Division Multiple Access (TDMA) systems.