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 August 2001|
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 from the previous version, in the areas of:
• introduction of unique system type codes for regulatory reference to the various system types detailed in the present document, refer to new annex A (normative) and related categories of system types of spectral efficiency;
• additional systems types E, F and G for OFDM modulation or system type HC with higher interference tolerance;
• additional regulation for CW spectral lines exceeding the spectrum mask;
• additional requirements for RBER when leased-line option is offered.