Title :
Measurements of downlink power level distributions in LTE networks
Author :
Colombi, Davide ; Thors, Bjorn ; Wiren, N. ; Larsson, L.-E. ; Tornevik, Christer
Author_Institution :
Ericsson Res., Stockholm, Sweden
Abstract :
Human exposure to the radio frequency electromagnetic fields (EMF) emitted by radio base stations (RBS) is proportional to the transmitted power. Thus, knowledge of actual power levels is key for a correct estimate of the actual EMF exposure. In this study, downlink output power distributions for RBSs in a 4G LTE mobile communication network have been determined. By extracting data using the operations support system (OSS) of the network, statistics were obtained based on 24 hours measurements for more than 5000 RBSs. The network measurement approach was verified with in-situ power density measurements. It was found that the actual output power levels are significantly below the theoretical maximum. For high-traffic periods, the 90th percentile transmitted power was found to be about 12% of the theoretical maximum.
Keywords :
4G mobile communication; Long Term Evolution; electromagnetic fields; statistical analysis; telecommunication power management; 4G LTE mobile communication network; LTE networks; downlink output power distribution; downlink power level distribution; in-situ power density measurement; network measurement approach; operations support system; radio base station; radio frequency electromagnetic field; time 24 hour; Density measurement; Downlink; Electromagnetic fields; Long Term Evolution; Mobile communication; Power generation; Power measurement;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2013 International Conference on
Conference_Location :
Torino
Print_ISBN :
978-1-4673-5705-0
DOI :
10.1109/ICEAA.2013.6632196