端到端重配置技术综述

A Survey of End-to-End Reconfiguration Technology

端到端重配置(E2R)技术起源于软件无线电(SDR)技术,利用SDR终端和基站等可重配置实体为基础定义网络架构,结合先进的资源管理机制和灵活的空中接口实现技术,实现了对异构环境的灵活适应和对异构无线资源的有效利用。E2R技术研究中有3个关键点,包括E2R的体系结构、E2R的资源管理和E2R的空中接口实现,已取得较大成果。E2R技术作为一种具有高适变能力的技术,是使异构无线系统从目前的隔离态走向互通与协同、实现网络融合的最具发展潜质的无线网络技术。目前,E2R的研究已成为未来无线通信网络领域的关键课题之一。

The End-to-End Reconfigurability （E2R） technology is derived from the Software Defined Radio （SDR） and establishes the network architecture composed of the SDR terminals and base stations as well as other network elements. It aims at realizing the flexible adaptability of the heterogeneous radio environment and the effective utilization of radio resources with the help of advanced radio resources management mechanisms and flexible air interfaces. There are three key research points of the E2R technology including its architecture, resource management and air interface, and the research has already gotten some results. As a highly suitable technology, E2R changes the heterogeneous wireless system from separated to connected and collaborated. It＇ s the wireless network technology that has the most potential in realizing network convergence. Nowadays, E2R has become the main focus of researches regarding the future wireless communications network.