Utilization of Patent Information for Humanitarian Purpose: Focusing on Technologies in the Public Domain

Due to its exclusive nature of intellectual property rights, there have been numerous tensions between intellectual property and human rights. In order to reconcile those tensions, many different kinds of efforts, especially in the area of patent, have been made, which include legislative, licensing, and policy-based approaches. However, one of the best ways to acquire accessibility to technologies without legal constraint is to use technologies in the public domain. Many life-improving technologies that people in least developed countries (LDCs) need might be found in patent documents under public domain, because not only many patents are expired way before their legally allowed protection term of twenty years, but also technologies which impoverished people need usually may not be the technologies which were recently patent granted. In addition, many of patented technologies in developed countries are not usually filed at LDCs. Recent projects conducted by the Korean Intellectual Property Office and World Intellectual Property Organization show how to utilize patent information in assisting impoverished people in LDCs, which might be another reconciliatory way of tensions between developed and developing countries regarding patent system

Stochastic Channel Modeling for Railway Tunnel Scenarios at 25 GHz

More people prefer using rail traffic for travel or for commuting owing to its convenience and flexibility. The railway scenario has become an important communication scenario in the fifth generation era. The communication system should be designed to support high‐data‐rate demands with seamless connectivity at a high mobility. In this paper, the channel characteristics are studied and modeled for the railway tunnel scenario with straight and curved route shapes. On the basis of measurements using the “Mobile Hotspot Network” system, a three‐dimensional ray tracer (RT) is calibrated and validated for the target scenarios. More channel characteristics are explored via RT simulations at 25.25 GHz with a 500‐MHz bandwidth. The key channel parameters are extracted, provided, and incorporated into a 3rd‐Generation‐Partnership‐Project‐like stochastic channel generator. The necessary channel information can be practically realized, which can support the link‐level and system‐level design of the communication system in similar scenarios

Technical challenges and solutions for 10 cm-level positioning accuracy towards 6G

This paper presents insights about schemes required to provide ultra-precise positioning services for multifarious environments. It describes positioning services and their requirements, and divides the services into “living convenience” and “productivity improvement”, and the requirements into “positioning quality” and “system efficiency”. It also presents the current accuracy levels, technical challenges, and research directions of positioning schemes that are based on satellite/communication system, image, ray-tracing, and fingerprint. Ultimately, this paper presents scenarios and solutions that provide 10cm-level positioning accuracy for both outdoor and indoor environments

Recent Advances in Nanoengineering of Electrode‐Electrolyte Interfaces to Realize High‐Performance Li‐Ion Batteries

A suitable interface between the electrode and electrolyte is crucial in achieving highly stable electrochemical performance for Li-ion batteries, as facile ionic transport is required. Intriguing research and development have recently been conducted to form a stable interface between the electrode and electrolyte. Therefore, it is essential to investigate emerging knowledge and contextualize it. The nanoengineering of the electrode-electrolyte interface has been actively researched at the electrode/electrolyte and interphase levels. This review presents and summarizes some recent advances aimed at nanoengineering approaches to build a more stable electrode-electrolyte interface and assess the impact of each approach adopted. Furthermore, future perspectives on the feasibility and practicality of each approach will also be reviewed in detail. Finally, this review aids in projecting a more sustainable research pathway for a nanoengineered interphase design between electrode and electrolyte, which is pivotal for high-performance, thermally stable Li-ion batteries

Design of cellular, satellite, and integrated systems for 5G and beyond

International audience5G AgiLe and fLexible integration of SaTellite And cellulaR (5G-ALLSTAR) is a Korea-Europe (KR-EU) collaborative project for developing multi-connectivity (MC) technologies that integrate cellular and satellite networks to provide seamless, reliable, and ubiquitous broadband communication services and improve service continuity for 5G and beyond. The main scope of this project entails the prototype development of a millimeter-wave 5G New Radio (NR)-based cellular system, an investigation of the feasibility of an NR-based satellite system and its integration with cellular systems, and a study of spectrum sharing and interference management techniques for MC. This article reviews recent research activities and presents preliminaryresults and a plan for the proof of concept (PoC) of three representative use cases (UCs) and one joint KR-EU UC. The feasibility of each UC and superiority of the developed technologies will be validated with key performance indicators using corresponding PoC platforms. The final achievements of the project are expected to eventually contribute to the technical evolution of 5G, which will pave the road for next-generation communications

6G in the sky: On-demand intelligence at the edge of 3D networks (Invited paper)

Sixth generation will exploit satellite, aerial, and terrestrial platforms jointly to improve radio access capability and unlock the support of on-demand edge cloud services in three-dimensional (3D) space, by incorporating mobile edge computing (MEC) functionalities on aerial platforms and low-orbit satellites. This will extend the MEC support to devices and network elements in the sky and forge a space-borne MEC, enabling intelligent, personalized, and distributed on-demand services. End users will experience the impression of being surrounded by a distributed computer, fulfilling their requests with apparently zero latency. In this paper, we consider an architecture that provides communication, computation, and caching (C3) services on demand, anytime, and everywhere in 3D space, integrating conventional ground (terrestrial) base stations and flying (non-terrestrial) nodes. Given the complexity of the overall network, the C3 resources and management of aerial devices need to be jointly orchestrated via artificial intelligence-based algorithms, exploiting virtualized network functions dynamically deployed in a distributed manner across terrestrial and non-terrestrial nodes.European Union in the Horizon 2020 EU-Korea project 5G-ALLSTAR, GA no. 815323, by the Institute for Information & Communications Technology Promotion (IITP) grant funded by the Korean government (MSIT No. 2018-0-00175) and by Grant No. P102-18-27023S, funded by the Czech Science Foundation.Peer ReviewedPostprint (published version

5G-ALLSTAR: An Integrated Satellite-Cellular System for 5G and Beyond

This paper provides an overview of recent research activities of the 5G AgiLe and fLexible integration of SaTellite And cellulaR (5G-ALLSTAR) project which aims to develop Multi-Connectivity technology that integrates the cellular and satellite networks to provide seamless, reliable and ubiquitous broadband services. 5G-ALLSTAR also entails developing millimeter-wave (mmWave) 5G New Radio (NR)-based cellular access system and investigating the feasibility of NR-based satellite access for providing broadband and reliable 5G services. In addition, spectrum sharing between cellular and satellite networks is studied. With all the technologies developed, 5G-ALLSTAR will showcase the first fully integrated satellite and cellular prototype system for 5G and beyond 5G (B5G) services at a big event (e.g., sporting event like Roland-Garros) in 2021. This paper also provides a preliminary techno-economic analysis on potential use cases targeting vertical markets, and introduces recent standardization activities of relevance