ETSI - EN 301 021
Fixed Radio Systems; Point-to-Multipoint Equipment; Time Division Multiple Access (TDMA); Point-to-Multipoint Digital Radio Systems in Frequency Bands in the Range 3 GHz to 11 GHz
|Publication Date:||1 February 2002|
The present document covers equipment, which may operate in frequency bands that have paired frequencies, which can be used by either equipment employing Frequency Division Duplex (FDD) or Time Division Duplex (TDD) techniques. For use with Time Division Duplex only one frequency of the frequency pair will be used and for the purpose of the present document the tx/rx separation will be zero.
The present document contains a revision to allow flexible channel spacings where block assignments have been made in accordance with ERC P-MP recommendations. Nevertheless, the channel spacing is intended be the same in down-link and up-link directions.
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 terrestrial 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 ,  and .
The present document covers fixed P-MP services operating in the 3,5 GHz, 3,7 GHz and 10,5 GHz bands, having the frequency plans as given in ERC Recommendations 14-03 , 12-08 , 12-05  and in ITU-R Recommendation F.1189-1 .
The present document covers Time Division Multiple Access (TDMA) systems.