User Manual

Architecture
Nortel Networks Confidential
3–60
PE/DCL/DD/0063
411–9001–063
Standard 12.07/EN September 2000
GSM/BSS V12
Amplification RX module
(LNA–Splitter)
Amplification TX module
(LPA)
Radio unit
(e–RDRX)
RX1 (RF)
RX2 analog–to–digital
converter
Logic unit (e–LDRX)
TX1 (RF)
Frequency translation
(IF/RF)
RX1 (IF) TX1 (IF)
RX radio
function
TX radio
function
Frequency translation
(LF/IF)
Frequency translation
(LF/IF)
Frequency translation
(IF/RF)
Figure 3–17 Radio unit (e–RDRX): functional unit