ETSI - EN 301 021
Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Time Division Multiple Access (TDMA); Point-to-Multipoint Radio Systems in the Frequency Division Duplex (FDD) Bands in the Range 3 GHz to 11 GHz
|Publication Date:||1 May 1999|
The present document covers equipment intended to operate in the
paired frequency bands which can be used by equipment employing
Frequency Division Duplex (FDD) techniques. A corresponding EN is
not available specific to Time-Division-Duplex
Applications 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;
- ISDN; - digital video;
- digital audio, related to digital interfaces.
Radio terminals from different manufacturers are not intended to interwork 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.