Handset and network quality performance benchmarking for QoE improvement

Micheli, Davide; Curto, Alessandra; Mazzurco, Marina; Pierucci, Laura; Fantacci, R.; Simoni, Renato

doi:10.1109/glocomw.2013.6825147

Cited by 12 publications

(6 citation statements)

References 5 publications

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“…Recently a reverberation chamber has been extensively used with a live TIM LTE radio base station, to analyze the effect of multipath. In all the experiments, it has been found that a delay spread in the range 1-2 µ s badly affect the performances of LTE packet transmission, in terms of BLER and end-user throughput [21], [26]- [29]. Those published results confirm the outcomes of this paper and encourage utilizing the reverberation chamber as a method to study mobile phone radio propagation in real conditions.…”

Section: Resultssupporting

confidence: 81%

Multipath and Doppler Characterization of an Electromagnetic Environment by Massive MDT Measurements From 3G and 4G Mobile Terminals

et al. 2019

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This paper describes an innovative approach to radio channel characterization in UMTS and LTE mobile networks. In place of traditional drive tests (DT), which employ a single test mobile, a massive collection of georeferenced radio measurements is made from a wide population of user equipment (UE). This is possible with new 3GPP features, called ''minimization of DTs'' (MDT), which are implemented in the last generation UEs and enable the reporting of additional periodical measurements, including GPS position and estimated UE distance (i.e. delay) over the radio path. This opens to new fields of investigation in the mobile radio channel, unreachable with the legacy DT approach, such as multipath and Doppler analysis. The UE MDT data of UMTS and LTE RAN of Telecom Italia Mobile, in the Italian midsized city of Bologna, have been statistically analyzed. The big data elaboration has been performed with the Nokia proprietary system ''GeoSynthesis.'' The results give a high-resolution geographical view of the abovementioned channel phenomena affecting the quality and user experience. They are in good accordance with network performance indicators: the higher the multipath time, the worse the decoding performance of radio blocks (block error rate). The estimated Doppler shift also fits the known mobility patterns in the urban environment.

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Section: Resultssupporting

confidence: 81%

Multipath and Doppler Characterization of an Electromagnetic Environment by Massive MDT Measurements From 3G and 4G Mobile Terminals

et al. 2019

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“…In the second set of measurements, in order to apply the experimental results given by a monochromatic signal to a modern communication systems, a modulated phase shift keying (PSK) and a quadrature amplitude modulation (QAM) signals used into the Universal Mobile Telecommunication Systems (UMTSs) modulation are transmitted through the different propagation channels emulated within the RC. Such modulations, based on low-bit-rate (PSK) and high-speed packet data (QAM) are employed to emulate within the IUN RC the real propagation conditions on UMTS systems [31,32]. Hence, an MER is measured.…”

Section: Resultsmentioning

confidence: 99%

Mode‐stirred reverberating chamber autocorrelation function: model, multifrequency measurements and applications

Sorrentino

Gifuni

Ferrara

et al. 2015

IET Science, Measurement & Technology

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In this study, a simple model for the autocorrelation function (ACF) within a reverberating chamber (RC) is\ud developed and verified. In particular, in a well-stirred RC when n mechanical stirrers operate, the ACF of the total field\ud is given by the product of n ACFs obtained when the n stirrers are singularly operated. Hence, a parameterisation of\ud the ACF is accomplished. Accordingly, it is possible to parameterise the coherence time, TC, of the RC emulated\ud wireless propagation channels. Experiments accomplished at the RC of the Università degli Studi di Napoli Parthenope,\ud formerly Istituto Universitario Navale, confirm the soundness of the proposed model and its operational effectiveness

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“…This test, even not related to a single precise actual channel model, is of great interest for the manufacturer of the BS and for mobile phone network operators like Telecom Italia. In fact, the real radio coverage and propagation conditions, in especial way in indoor environments, are currently one of the major issues in granting quality of voice and data packet services [36]. It is estimated that the great part of the user traffic is generated in indoor environment where the radio condition are sometimes very bad due to the building structure attenuation of signals transmitted by the external BS to the indoor user equipments like phones, tablet, dongle [37]- [39].…”

Section: Methodsmentioning

confidence: 99%

Power Boosting and Compensation During OTA Testing of a Real 4G LTE Base Station in Reverberation Chamber

Micheli

Barazzetta

Moglie

et al. 2015

IEEE Trans. Electromagn. Compat.

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A fully operational 4G long-term evolution (LTE) base station is tested in a reverberation chamber to analyze its performance in the presence of a multipath environment, typical of wireless and vehicular communications. Transmission quality parameters are measured ranging from the empty chamber situation (very rich multipath channel) to a very high loading condition to mitigate multipath. In that way, both outdoor and indoor propagation are accounted for. A large attenuation is inserted between the transmitter and the antenna to reduce the signal received by the user to real-life values encountered in both outdoor and indoor environments. In these scenarios, operators may choose to transmit a constant power spectral density throughout all LTE spectrum, or to increase the energy of control channels at the expense of data channels in order to enforce transmission and provide better quality to the user, especially in poor radio conditions. This is called “power boosting,” and its effect is analyzed in this paper

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Handset and network quality performance benchmarking for QoE improvement

Cited by 12 publications

References 5 publications

Multipath and Doppler Characterization of an Electromagnetic Environment by Massive MDT Measurements From 3G and 4G Mobile Terminals

Multipath and Doppler Characterization of an Electromagnetic Environment by Massive MDT Measurements From 3G and 4G Mobile Terminals

Mode‐stirred reverberating chamber autocorrelation function: model, multifrequency measurements and applications

Power Boosting and Compensation During OTA Testing of a Real 4G LTE Base Station in Reverberation Chamber

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