LTE免授权频带介质接入设计

A. Bhorkar, C. Ibars, A. Papathanassiou, Pingping Zong
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引用次数: 41

摘要

本文提出了一种适合于无授权频段LTE (Long term evolution, LTE- u)运行的介质接入协议。MAC设计考虑了LTE- u对在未授权频段(如WiFi和传统LTE)运行的设备的影响。LTE- u设计与传统LTE系统的不同之处在于,传统LTE系统本质上是一个同步的、严格控制的系统。通过详细的系统级模拟器实现和3GPP仿真测试场景对LTE-U的性能进行了研究。我们表明,我们提出的MAC设计可以在未经许可的频带中实现高吞吐量,并实现与现有系统的共存。此外,信道保留机制的使用被证明可以提高LTE-U蜂窝的边缘性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Medium access design for LTE in unlicensed band
In this paper, a medium access protocol suitably adapted for the operation of Long term evolution (LTE) in unlicensed band (LTE-U) is proposed. The MAC design considers the impact of LTE-U on the devices operating in unlicensed band, such as WiFi and legacy LTE. The LTE-U design differences from the legacy LTE system, an inherently a synchronized, tightly controlled system are explored. The performance of LTE-U is studied via a detailed system level simulator implementation and 3GPP simulation test scenarios. We show that our proposed MAC design enables high throughput in unlicensed band and achieves co-existence with the incumbent systems. Moreover, the use of channel reservation mechanisms is shown to improve LTE-U cell edge performance.
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