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TD-LTE中继作为无线蜂窝网络中的一个节点,具有提升小区边缘用户吞吐量,扩展网络覆盖以及提供高速无线回传链路的能力.爱立信作为TD-LTE中继技术的领导者开发了“TD-LTE游牧中继”带内中继试验系统,接入链路完全兼容3GPP TD-LTER8协议,使TD-LTE中继能够放置于不同的地理位置,使用商用或者预商用终端对中继部署的外场无线环境及性能进行试验,对TD-LTE在外场部署的特点和性能研究具有重大的意义.本文中对游牧中继在无线网络中的性能以及无线回传信道进行了场外研究测试,通过TD-LTE在外场测试中的性能分析对TD-LTE中继的现场部署给出了位置及天线朝向等方面的建议,本文研究中发现TD-LTE中继在非直视类型的回传链路环境下对小区边缘的吞吐量仍然具有极大的提高.
As a node in the wireless cellular network, TD-LTE relay has the ability to improve cell edge user throughput, extend network coverage and provide high-speed wireless backhaul links.As Ericsson’s leader in TD-LTE relay technology, TD- “TD-LTE nomadic trunk” in-band relay test system, the access link is fully compatible with 3GPP TD-LTER8 protocol so that TD-LTE trunks can be placed in different geographical locations, using commercial or pre-commercial terminal alignment Following the deployment of the field of wireless environment and performance testing, TD-LTE deployment in the field of the characteristics and performance of great significance.In this paper, nomadic relay in the wireless network performance and wireless backhaul channel off-site research Test, TD-LTE in the field test through the performance analysis of the TD-LTE relay on-site deployment gives the location and orientation of the antenna and so on, this study found TD-LTE relay in the non-direct type of back The throughput of the cell edge in the transmission link environment still has a tremendous improvement.