NDLI: Current Consumption Measurements with a Carrier Aggregation Smartphone

Content Provider	IEEE Xplore Digital Library
Author	Sanchez-Mejias, R. Yu Guo Lauridsen, M. Mogensen, P. Maestro Ruiz de Temino, L.A.
Copyright Year	2014
Description	Author affiliation: Nokia, Irving, TX, USA (Sanchez-Mejias, R.; Yu Guo; Maestro Ruiz de Temino, L.A.) \|\| Dept. of Electron. Syst., Aalborg Univ., Aalborg, Denmark (Lauridsen, M.; Mogensen, P.)
Abstract	Carrier Aggregation (CA) is introduced in LTE release 10 to improve data rates by allowing the User Equipment (UE) to receive data on more than one LTE carrier. The related increased complexity is expected to affect the UE current consumption, but yet no empirical evaluation has been published on this topic. Currently there are only theoretical expansions of LTE release 8 power models available, but this article presents the first publicly available current consumption measurements on a commercial CA-capable UE. In this work it is examined how the activation and use of CA (10 + 10 MHz) affects the UE current consumption with different traffic profiles such as FTP or web browsing. For a large FTP download the average CA current consumption is reduced 13% compared to single-carrier 10 MHz due to increased data rate and extended idle time, which allows the UE to enter a low-current sleep mode. For small data bursts, such as keep-alive messages, configuring CA results in 17 mA average current increase during RRC connected state inactivity periods. Depending on the UE background activity, this could translate into 3% to 8% reduction of the UE's stand-by battery life.
Starting Page	1
Ending Page	5
File Size	202224
Page Count	5
File Format	PDF
ISBN	9781479944491
DOI	10.1109/VTCFall.2014.6965929
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-14
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Current measurement Throughput Batteries Monitoring YouTube Streaming media Power measurement
Content Type	Text
Resource Type	Article

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