摘要 :
The discontinuous reception (DRX) mechanism is commonly employed in current LTE networks to improve energy efficiency of user equipment (UE). DRX allows UEs to monitor the physical downlink control channel (PDCCH) discontinuously ...
展开
The discontinuous reception (DRX) mechanism is commonly employed in current LTE networks to improve energy efficiency of user equipment (UE). DRX allows UEs to monitor the physical downlink control channel (PDCCH) discontinuously when there is no downlink traffic for them, thus reducing their energy consumption. However, DRX power savings are achieved at the expense of some increase in packet delay since downlink traffic transmission must be deferred until the UEs resume listening to the PDCCH. In this paper, we present a promising mechanism that reduces energy consumption of UEs using DRX while simultaneously maintaining average packet delay around a desired target. Furthermore, our proposal is able to achieve significant power savings without either increasing signaling overhead or requiring any changes to deployed wireless protocols.
收起
摘要 :
В статье рассмотрена архитектура частных сетей LTE (pLTE). Освещены вопросы частотного обеспечения таких сетей. Представлено реш...
展开
В статье рассмотрена архитектура частных сетей LTE (pLTE). Освещены вопросы частотного обеспечения таких сетей. Представлено решение pLTE, разработанное специалистами ООО "СПЕКТР".
收起
摘要 :
Już wkrótce większość urządzeń Internet of Things (loT) będzie komunikować się za pomocą bezprzewodowych technologii typu maszyna z maszyną (M2M). Obecnie technologie 2G i 3G dominują na komórkowym rynku loT, ale prz...
展开
Już wkrótce większość urządzeń Internet of Things (loT) będzie komunikować się za pomocą bezprzewodowych technologii typu maszyna z maszyną (M2M). Obecnie technologie 2G i 3G dominują na komórkowym rynku loT, ale przyszłość należy do czwartej generacji LTE realizowanej za pomocą NB-loT (wąskopasmowy loT) i eMTC (ulepszona komunikacja M2M). Nowe technologie umożliwią operatorom telefonii komórkowej szerszy dostęp do bezprzewodowego rynku loT.
收起
摘要 :
The purpose of this work is to present a proposal for the virtualization of the core of the LTE network using free software. To do this, we start from the fundamental characteristics of LTE mobile networks, focusing on the details...
展开
The purpose of this work is to present a proposal for the virtualization of the core of the LTE network using free software. To do this, we start from the fundamental characteristics of LTE mobile networks, focusing on the details of the network core at the user plane and control plane. Next, two free software projects that are based on the implementation of the virtualized network core (Magma Core and OMEC) are analyzed, and applying comparative methods, the most appropriate is selected. As a result, it isobtained that the Magma Core solution is the most suitable for the implementation of the virtualized LTE network core due to the results obtained in a set of indicators, highlighting the flexibility of its architecture, its best efficiency/cost ratio and its possibility of deployment. as the core of an LTE network in different scenarios. Finally, the AGW (Access Gateway) component of the chosen solution (Magma Core) that represents an Evolved Packet Core (EPC) was implemented in a virtual laboratory environment, which allowed us to verify its possibilities as a virtualized EPC.
收起
原文获取