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 2003|
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 channel spacing is intended to be the same in downlink and uplink directions.
This revision extends the scope to cover systems employing basically TDMA multi-access but which also allows for additional methods (such as OFDMA) combined with TDMA, to be used to provide another dimension of multiple access.