LTE Advanced

About: LTE Advanced is a research topic. Over the lifetime, 4055 publications have been published within this topic receiving 74262 citations. The topic is also known as: Long-Term Evolution Advanced & LTE-A.

LTE Advanced — A further evolutionary step for Next Generation Mobile Networks

Abstract: The World Radio Conference in 2007 identified additional spectrum for IMT-2000 and IMT-Advanced systems. That's why also 3GPP has started a feasibility study for LTE-Advanced techniques to continuously evolve LTE technology. LTE-Advanced is expected to enable download peak rates over 1Gbps at 100MHz bandwidth and in the upload peak rates over 0.5Gbps. Novel techniques on radio interface are going to be analyzed especially to improve spectral efficiency and cell edge performance. Advanced Antenna systems, Multi-User and Multi-Cell Multiple-Input Multiple-Output, Coordinated Multi-Point (CoMP) transmission schemes for interference reduction, Cooperative Relaying are some of potential features to enhance the Next Generation Mobile Network.

4G, LTE-Advanced Pro and The Road to 5G, Third Edition

Abstract: The upcoming 5G specifications from 3GPP, to be available in 2018, will include LTE-Advanced Pro as well as a new 5G radio-access technology. This practical and very successful book, written by engineers working closely with 3GPP, gives insight into the newest technologies and standards adopted by 3GPP, with detailed explanations of the specific solutions chosen and their implementation in LTE, LTE-Advanced, and LTE-Advanced Pro, as well as providing a detailed description of the path to 5G and the associated underlying technologies. This edition has been thoroughly revised and updated to reflect the large extensions to LTE as introduced in 3GPP Releases 12 and 13 and the role of LTE in the upcoming 5G era. New to this edition includes updated content on: 4G and 5G Radio Access Spectrum for 4G and 5G Machine-Type Communication Device-to-Device Communication License-assisted Access Full-dimension MIMOSmall-cell enhancements, eIMTA, FDD+TDD aggregation, dual connectivity Requirements on and general structure of 5G wireless access, addressing the existing and new usage scenarios for 5GTechnical solutions for the new 5G radio-access technology The authors of this book all work at Ericsson Research and have been deeply involved in 3G and 4G development and standardization. They are leading experts in the field and are today actively contributing to the standardization of 4G and 5G within 3GPP. The leading book on 3GPP specifications for LTE, LTE-Advanced, and LTE-Advanced Pro covering up to and including Release 13, written by Ericsson engineers who are heavily involved in the development of 3GPP specificationsTen new chapters and coverage of all major features introduced with Release 12 and 13Two completely new chapters on 5G wireless access including a detailed description of the key technology components under development by 3GPP

A Survey of Self-Interference in LTE-Advanced and 5G New Radio Wireless Transceivers

Abstract: This article presents a comprehensive survey of the literature on self-interference (SI) in long-term evolution advanced (LTE-A) and fifth-generation (5G) new radio transceivers and should serve the reader as a guide and starting point for further work on SI management. Current trends in cellular transceiver designs are discussed, and reasons why new technologies, such as carrier aggregation, cause potential sensitivity degradation due to self-interfering signals are highlighted. The survey provides an overview of the most common interference mechanisms and continues with a taxonomy on SI mitigation architectures by comparing the strengths and weaknesses of various techniques.

Performance study of LTE experimental testbed using OpenAirInterface

Abstract: The next generation, 5G wireless access, is going to support a wide range of new applications and use cases, with the capabilities including very high achievable data rate, very low latency, ultra-high reliability and the possibility to handle extreme device densities. To avoid the costly deployment, operation and maintenance of future mobile network, Radio Access Network (RAN) virtualization or Cloud RAN is the answer to the problem. The idea is to move the baseband processing to the data center and run the RAN L1, L2 and L3 protocol layers using the commodity hardware, such as high-performance general purpose processors. An open source software-based LTE implementation, such as OpenAirInterface (OAI), is definitely accelerating the RAN cloudization and also realizing the possibility of low cost LTE network deployment in the future. In this paper, we describe the OAI LTE implementation emphasizing on the user plane data flow. We have successfully emulated over-the-air transmission for 1 UE and 1 eNB LTE network supporting both FDD Band 5 and TDD Band 38. We have also performed a thorough profiling of OAI, in terms of execution time, on the user plane data flow. Our results could be served as the reference for future optimization by open source community.

QoS performance analysis on carrier aggregation based LTE-A systems

Abstract: Carrier aggregation (CA) is a good solution for third-generation (3G) Long Term Evolution-Advanced (LTE-A) systems to fulfil the system bandwidth (BW) extension requirements and also ensure the backwards compatibility towards 3G LTE In this paper, we compare the quality of service (QoS) performances of two different multi-user scheduling schemes in CA based LTE-A systems, ie separated random user scheduling (SRUS) and joint user scheduling (JUS) The former is simpler but less efficient while the latter is optimal but with higher signalling overhead Moreover, only one single component carrier (CC) is needed to access for user equipment (UE) in the case of SRUS while all the CCs have to be connected in the case of JUS Simulation results show that the SRUS scheme is feasible and only little performance loss in continuous and heavy traffic load scenarios with full or Poisson-based finite buffer traffic input