| D2D研究现状及发展前景 |
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| 引用本文： | 焦岩,高月红,杨鸿文,杨大成.D2D研究现状及发展前景[J].电信工程技术与标准化,2014(6):83-87. |
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| 作者姓名： | 焦岩 高月红 杨鸿文 杨大成 |
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| 作者单位： | 北京邮电大学,北京邮电大学,北京邮电大学,北京邮电大学 |
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| 摘 要： | LTE Device to Device(D2D)Proximity Services(LTE终端直通近距离服务)即我们熟知的LTE-D2D(端到端)技术。2013年,D2D成为3GPP组织重点研讨技术之一,其标准化工作正在讨论完善之中。LTE-D2D是在LTE-A系统(辅助)控制或无网络基础设施的情况下,用户设备在授权频段上直接进行通信的技术。它的出现将在一定程度上缓解无线频谱资源匮乏的问题,并能够提升蜂窝系统频谱效率。文章对D2D通信的发展历程、场景和关键技术进行了介绍,最后展望D2D技术发展前景及在未来应用中的情况。
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| 关 键 词： | DD 频谱效率 公共安全 中继 |
| 收稿时间： | 2014/5/20 0:00:00 |
| 修稿时间： | 2014/5/20 0:00:00 |
Research situation and development prospect of D2D |
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| jiaoyan,Gao Yuehong,Yang Hongwen and Yang Dacheng.Research situation and development prospect of D2D[J].Telecom Engineering Technics and Standardization,2014(6):83-87. |
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| Authors: | jiaoyan Gao Yuehong Yang Hongwen and Yang Dacheng |
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| Affiliation: | Beijing University of Posts and Telecommunications,Beijing University of Posts and Telecommunications,Beijing University of Posts and Telecommunications,Beijing University of Posts and Telecommunications |
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| Abstract: | LTE Device to Device (D2D) Proximity Services is known to us all as D2D underlaying a LTE-Advanced cellular network. In the year of 2013, D2D technology was identified by 3GPP as one of the main researching techniques, and the standardization of D2D is in hot discussion. LTE-D2D is a new technology that can support UEs (user equipment) connected with each other directly within (or partial within) and without cellular network coverage on the licensed spectrum. It will solve the scarcity of the wireless spectrum resource to a certain extent, and increase the spectrum efficiency of the cellular system. In this article, the development, scenarios and the key technologies of D2D are introduced, and finally some application in the future is proposed. |
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| Keywords: | D2D spectrum efficiency Public Safety relay |
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