H
Hazhir Shokri Razaghi
Researcher at Ericsson
Publications - 13
Citations - 1414
Hazhir Shokri Razaghi is an academic researcher from Ericsson. The author has contributed to research in topics: Random access & NarrowBand IOT. The author has an hindex of 8, co-authored 13 publications receiving 1246 citations.
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A Primer on 3GPP Narrowband Internet of Things (NB-IoT)
Y.-P. Eric Wang,Xingqin Lin,Ansuman Adhikary,Asbjörn Grövlen,Sui Yutao,Yufei Blankenship,Johan Bergman,Hazhir Shokri Razaghi +7 more
TL;DR: In this article, the air interface of NB-IoT is discussed and the various design rationales during the standardization of NBIoTs in Release 13 and point out several open areas for future evolution.
Journal ArticleDOI
A Primer on 3GPP Narrowband Internet of Things
Y.-P. Eric Wang,Xingqin Lin,Ansuman Adhikary,Asbjörn Grövlen,Sui Yutao,Yufei Blankenship,Johan Bergman,Hazhir Shokri Razaghi +7 more
TL;DR: How NB-IoT addresses key IoT requirements such as deployment flexibility, low device complexity, long battery lifetime, support of massive numbers of devices in a cell, and significant coverage extension beyond existing cellular technologies is described.
Journal ArticleDOI
Positioning for the Internet of Things: A 3GPP Perspective
Xingqin Lin,Johan Bergman,Fredrik Gunnarsson,Olof Liberg,Sara Modarres Razavi,Hazhir Shokri Razaghi,Henrik Rydn,Sui Yutao +7 more
TL;DR: In this paper, the authors focus on the design challenges of positioning support in LTE-M and NB-IoT, and provide an overview of the OTDOA architecture and protocols.
Posted Content
Positioning for the Internet of Things: A 3GPP Perspective
Xingqin Lin,Johan Bergman,Fredrik Gunnarsson,Olof Liberg,Sara Modarres Razavi,Hazhir Shokri Razaghi,Henrik Rydén,Sui Yutao +7 more
TL;DR: The design challenges of positioning support in LTE-M and NB-IoT are identified, the 3GPP's work in enhancing the positioning support is overviewed, and an overview of the OTDOA architecture and protocols is provided.
Journal ArticleDOI
Overview of 3GPP Release 14 Further Enhanced MTC
Andreas Höglund,Johan Bergman,Xingqin Lin,Olof Liberg,Antti Ratilainen,Hazhir Shokri Razaghi,Tuomas Tirronen,Emre Yavuz +7 more
TL;DR: In Release 14, LTE-M has been further enhanced by features in important areas, which increases the maximum supported data rates, the support for location services with significantly improved accuracy, and support for multicast to enable, for example, simultaneous firmware downloads to a multitude of devices.