Enhancements of narrowband IoT in 3GPP Rel-14 and Rel-15

Ratasuk, Rapeepat; Mangalvedhe, Nitin; Xiong, Zhilan; Robert, Michel; Bhatoolaul, David

doi:10.1109/cscn.2017.8088599

Cited by 37 publications

(22 citation statements)

References 3 publications

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“…3GPP Release 15 included further enhancements in the form of support for improved latency, power consumption, measurement accuracy, cell range and load control. To extend the range of deployment options, it also specified smallcell and time division duplex (TDD) support for NB-IoT [48]. In 3GPP Release 16, additional enhancements and extensions for NB-IoT are specified to further improve the efficiency of network operation.…”

Section: B Enhancements For Nb-iotmentioning

confidence: 99%

Towards Enabling Critical mMTC: A Review of URLLC Within mMTC

et al. 2020

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Massive machine-type communication (mMTC) and ultrareliable and low-latency communication (URLLC) are two key service types in the fifth-generation (5G) communication systems, pursuing scalability and reliability with low-latency, respectively. These two extreme services are envisaged to agglomerate together into critical mMTC shortly with emerging use cases (e.g., wide-area disaster monitoring, wireless factory automation), creating new challenges to designing wireless systems beyond 5G. While conventional network slicing is effective in supporting a simple mixture of mMTC and URLLC, it is difficult to simultaneously guarantee the reliability, latency, and scalability requirements of critical mMTC (e.g., < 4ms latency, 106 devices/km 2 for factory automation) with limited radio resources. Furthermore, recently proposed solutions to scalable URLLC (e.g., machine learning aided URLLC for driverless vehicles) are ill-suited to critical mMTC whose machine type users have extremely limited energy budget and computing capability that should be tightly optimized for given tasks. In view of this, this paper aims to characterize promising use cases of critical mMTC and search for their possible solutions. To this end, we first review the state-of-theart (SOTA) technologies for separate mMTC and URLLC services and then identify key challenges from conflicting SOTA requirements, followed by potential approaches to prospective critical mMTC solutions at different layers. Index Terms-Ultra reliable low latency communication (URLLC), massive machine type communications (mMTC), critical mMTC, 5G, beyond 5G.

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Section: B Enhancements For Nb-iotmentioning

confidence: 99%

Towards Enabling Critical mMTC: A Review of URLLC Within mMTC

et al. 2020

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“…Narrowband IoT is a clean-slate LPWAN standard specified by the 3GPP standardization organization. It was introduced in LTE Release 13 [5], with significant improvements made in Releases 14 and 15 [12]. NB-IoT is designated as a 5G mMTC enabler in Release 15 [6] and will thus stay relevant in future mobile networks.…”

Section: Narrowband Iot Fundamentalsmentioning

confidence: 99%

“…T min = 25 ms, TBS = 680 b → R max = TBS/T min = 27.2 kbps for a 180 kHz PRB (12) In NB-IoT, there are multiple factors that contribute to the total system latency. Liberg et al [1] performed system-level simulations to evaluate the latency under different signal conditions and deployment modes, as shown in Table 1.…”

Section: Npdcch Scheduling Info T = Nmentioning

confidence: 99%

A Systematic Analysis of Narrowband IoT Quality of Service

Matz

Fernández-Prieto

Canada-Bago

et al. 2020

Sensors

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Narrowband-IoT (NB-IoT) is part of a novel group of access technologies referred to as Low-Power Wide Area Networks (LPWANs), which provide energy-efficient and long-range network access to IoT devices. Although NB-IoT Release 13 has been deployed by Mobile Network Operators (MNO), detailed Quality of Service (QoS) evaluations in public networks are still rare. In this paper, systematic physical layer measurements are conducted, and the application layer performance is verified. Special consideration is given to the influence of the radio parameters on the application layer QoS. Additionally, NB-IoT is discussed in the context of typical smart metering use cases. The results indicate that NB-IoT meets most theoretical Third Generation Partnership Project (3GPP) design goals in a commercial deployment. NB-IoT provides a wide coverage by using signal repetitions, which improve the receiver sensitivity, but simultaneously increase the system latency. The maximum data rates are consistent over a wide range of coverage situations. Overall, NB-IoT is a reliable and flexible LPWAN technology for sensor applications even under challenging radio conditions. Four smart metering transmission categories are analyzed, and NB-IoT is verified to be appropriate for applications that are not latency sensitive.

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“…To this extent, IoT possesses the power to revolutionize the way we live, towards an intelligent society. The 3rd Generation Partnership Project (3GPP) set up the NB-IoT standard as part of Release 13 which is currently evolving and growing towards new releases with improved capabilities, as it is going to be a crucial application in the future 5G network [3], [4]. The key challenge of this technology, in terms of connectivity, is to provide a global and ubiquitous coverage to the IoT devices.…”

Section: Introductionmentioning

confidence: 99%

Resource Allocation Approach for Differential Doppler Reduction in NB-IoT over LEO Satellite

Kodheli

Andrenacci

Maturo

et al. 2018

2018 9th Advanced Satellite Multimedia Systems Conference and the 15th Signal Processing for Space Communications Workshop (ASM

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Internet of things (IoT) over satellite is an attractive system architecture which has been proposed as a key-enabling technology, to extend the coverage in remote areas (e.g. desert, ocean, forest, etc), particularly where a terrestrial network is impossible or impractical to reach. One of the most promising technologies that fit the IoT vision of low-power, wide area networks (LPWAN) is the narrowband IoT (NB-IoT). While low earth orbit (LEO) satellites are favourable because of their lower round trip time (RTT) and lower propagation loss in the communication link, they come up with a significantly increased Doppler shift. In our NB-IoT over LEO satellite architecture, we identify the problem of high differential Doppler among channels of different users on Earth, which leads to the performance degradation of our system. In this paper, we propose a resource allocation approach in order to reduce the high values of differential Doppler under the maximum value supported by the standard itself.

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Enhancements of narrowband IoT in 3GPP Rel-14 and Rel-15

Cited by 37 publications

References 3 publications

Towards Enabling Critical mMTC: A Review of URLLC Within mMTC

Towards Enabling Critical mMTC: A Review of URLLC Within mMTC

A Systematic Analysis of Narrowband IoT Quality of Service

Resource Allocation Approach for Differential Doppler Reduction in NB-IoT over LEO Satellite

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