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2020, vol. 12, br. 1, str. 8-12
Statistical analysis of CQI reporting and MIMO utilization for downlink scheduling in live LTE mobile network
(naslov ne postoji na srpskom)
aAspire Technology Unlimited - Belgrade Branch Office, Belgrade
bEricsson Spain, Madrid, Spain
cUniverzitet u Beogradu, Elektrotehnički fakultet

e-adresaigor.tomic@aspiretechnology.com, djordje.lukic@aspiretechnology.com, milutin.davidovic@ericsson.com, ddrajic@etf.bg.ac.rs, predrag.ivanis@etf.bg.ac.rs
Ključne reči: CQI (Channel Quality Indicator); downlink scheduling; LTE (Long Term Evolution); MIMO (Multiple Input Multiple Output)
Sažetak
(ne postoji na srpskom)
This paper considers a Multiple Input Multiple Output (MIMO) downlink scheduling procedure in Long Term Evolution (LTE) cellular networks. In particular, the relationship between Channel Quality Indicator (CQI) and MIMO utilization in LTE Frequency Division Duplex (FDD) systems was examined using the statistical analysis. Data was collected from a mature mobile network deployed in typical frequency bands for LTE FDD used in Europe - Band 3, Band 7 and Band 20. Obtained numerical results showed a significant correlation between reported CQI value and MIMO utilization.
Reference
*** (2019) Evolved Universal Terrestrial Radio Access (E-UTRA): Physical layer procedures. 3GPP TS 36.213 15.7.0, September
*** (2016) Radio wave propagation guidelines. Ericsson Internal
Cox, C. (2014) An introduction to LTE. Chichester: John Wiley & Sons, 2 nd edition
Davidović, M., Bjeković, S., Tomić, I. (2015) On the impact of network load on LTE network downlink performance. u: 59th International Conference IcETRAN 2015, Srebrno Jezero
Davidović, M., Tomić, I., Drajić, D., Čiča, Z. (2019) On the impact of NB-IoT on LTE MBB downlink performance. Telfor Journal, vol. 11, br. 1, str. 20-24
Elnashar, A., El-Saidny, M.A. (2013) Looking at LTE in practice: A performance analysis of the LTE system based on field test results. IEEE Vehicular Technology Magazine, 8(3), 81-92, September
Gospić, N., Tomić, I., Popović, D., Bogojević, D. (2010) Razvoj mobilnih telekomunikacija, od GSM do LTE. Univerzitet u Beogradu, Saobraćajni fakultet
Tomić, I., Simić, I. (2009) 3GPP LTE Long Term evolution: 4G system. u: YU INFO 2009, Kopaonik
Tomić, I.A., Lukić, Đ., Davidović, M., Drajić, D.D., Ivaniš, P. (2019) Statistical analysis of CQI reporting and MIMO utilization for downlink scheduling in live LTE mobile network. u: 27th Telecommunications Forum (TELFOR), November
Tomić, I.A., Davidović, M.S., Bjeković, S.M. (2015) On the downlink capacity of LTE cell. u: 23 rd Telecommunications Forum TELFOR 2015, Belgrade, 181-185
 

O članku

jezik rada: engleski
vrsta rada: neklasifikovan
DOI: 10.5937/telfor2001008T
primljen: 02.05.2020.
prihvaćen: 12.06.2020.
objavljen: 31.07.2020.
objavljen u SCIndeksu: 09.10.2020.

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