数字红利频谱中数字地面电视广播对LTE TDD的干扰分析

2010 2nd IEEE InternationalConference on Network Infrastructure and Digital Content Pub Date : 2010-12-03 DOI:10.1109/ICNIDC.2010.5657872

Weidong Wang, Ben Wang, Z. Lv, Wei Huang, Yinghai Zhang

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引用次数: 18

摘要

TD-SCDMA的演进是LTE TDD。但1GHz以下频谱资源的稀缺是LTE TDD部署中最严重的问题之一。数字红利频谱是用于从模拟电视转换为数字电视的空闲频段，是部署1GHz以下LTE TDD的理想频段。因此，数字红利频谱中数字地面电视广播(DTTB)与LTE TDD的共存问题在频谱规划中十分重要[1]。本文以中国数字电视标准为基础，采用确定性分析方法和蒙特卡罗仿真，对DTTB到LTE TDD的干扰进行了分析。结果表明，LTE TDD上行链路受到的干扰较为严重。如果保护距离已经很大，增加保护距离的效果不显著。如果在网络规划和频谱规划中采取合理措施，两种系统在相邻信道中共存是可能的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Analysis of interference from digital Terrestrial Television Broadcast to LTE TDD in Digital Dividend spectrum

The evolution of TD-SCDMA is LTE TDD. But the scarcity of spectrum resource below 1GHz is one of the most serious problems in the deployment of LTE TDD. Digital Dividend spectrum, which is free up for the conversion from analog TV to digital TV, is the ideal frequency band to deploy LTE TDD below 1GHz. So the coexistence issue between Digital Terrestrial Television Broadcast (DTTB) and LTE TDD in Digital Dividend Spectrum is important in the spectrum plan [1]. In this paper, the interference from DTTB to LTE TDD is analyzed using deterministic analysis method and Monte Carlo simulation based on the digital TV standard of China. The results show that the uplink of LTE TDD is interfered more seriously. The effect of increasing protecting distance is not significant if protection distance is already large. The coexistence of the two systems in adjacent channels is possible if reasonable measures are taken in the network plan and spectrum plan.

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2010 2nd IEEE InternationalConference on Network Infrastructure and Digital Content

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