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3 W's of smartphone power consumption: Who, Where and How much is draining my battery?
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Recent advances in cloud computing have simplified the way that both software development and testing are performed. Unfortunately, this is not true for battery testing for which state of the art test-beds simply consist of one phone attached to a power meter. These test-beds have limited resources, access, and are overall hard to maintain; for these reasons, they often sit idle with no experiment to run. In this paper, we propose to share existing battery testing setups and build BatteryLab, a distributed platform for battery measurements. Our vision is to transform independent battery testing setups into vantage points of a planetary-scale measurement platform offering heterogeneous devices and testing conditions. In the paper, we design and deploy a combination of hardware and software solutions to enable BatteryLab's vision. We then preliminarily evaluate BatteryLab's accuracy of battery reporting, along with some system benchmarking. We also demonstrate how BatteryLab can be used by researchers to investigate a simple research question.
A Google case study finds ML training in the cloud can reduce CO 2 e emissions up to 100×.
The fifth generation (5G) wireless technology is primarily developed to support three classes of use cases, namely, enhanced mobile broadband (eMBB), ultra-reliable and low-latency communication (URLLC), and massive machine-type communication (mMTC), with significantly different requirements in terms of data rate, latency, connection density, and power consumption. Meanwhile, there are several key use cases, such as industrial wireless sensor networks, video surveillance, and wearables, whose requirements fall in-between those of eMBB, URLLC, and mMTC. In this regard, 5G can be further optimized to efficiently support such mid-range use cases. Therefore, in Release 17, the 3rd generation partnership project (3GPP) developed the essential features to support a new device type enabling reduced capability (RedCap) new radio (NR) devices aiming at lower cost/complexity, smaller physical size, and longer battery life compared to regular 5G NR devices. In this article, we provide a comprehensive overview of 3GPP Release 17 Red-Cap while describing newly introduced features, cost reduction and power saving gains, and performance and coexistence impacts. Moreover, we present key design guidelines, fundamental tradeoffs, and future outlook for RedCap evolution.
The rapid development of the smartphones penetrated in every aspect of daily life starting from the health care, education, economics, social life etc. The prominence of the smartphones comes due to their size and connectivity, size made them the first handy personal computer available for 24\7 to the users. Unfortunately, the power of these smart devices and applications are limited and dependent on their battery power, which directly effects their usability. To overcome the shortage of battery life, scientists conducted several researches to get more power efficient hardware components, operating system and applications. This paper introduces review to the different techniques introduced to reduce the power consumptions in smartphones by using any mean.
Ue power saving with traffic classification and ue assistance
- Anum Ali
- Yuqiang Heng
- Vutha Va
- Priyabrata Parida
- Jianzhong Charlie Boon Loong Ng
- Zhang
- Ali Anum