LTE In-Band Relay Prototype and Field Measurement
LTE In-Band Relay Prototype and Field Measurement
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DOI：
10.1109/vetecs.2012.6239938
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发表时间：
2012-05
期刊：
影响因子：
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通讯作者：
Jiansong Gan;Zhiheng Guo;K. Sandlund;Jianjun Liu;Xiaodong Shen;Rui Fan;Weihong Liu;Hai Wang;Guangyi Liu
中科院分区：
文献类型：
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作者：
Jiansong Gan;Zhiheng Guo;K. Sandlund;Jianjun Liu;Xiaodong Shen;Rui Fan;Weihong Liu;Hai Wang;Guangyi Liu
中继是LTE版本10中定义的特征，以在新区域中提供覆盖和/或提高小区边缘吞吐量。为了研究中继在真实的网络中的性能，开发了一个LTE TDD带内中继原型。基于该原型，使用LTE Release-8终端进行了一些现场测量。测试了室内场景和室外场景。测量结果表明，中继器（一旦被适当地部署）在施主eNB的覆盖空洞中提供良好的覆盖。除了覆盖扩展之外，中继还可以提高施主eNB的覆盖不良区域（即小区边缘）中的数据速率。由该中继原型服务的终端的吞吐量在上行链路中达到约8 Mbps，在下行链路中达到约20 Mbps。关于延迟，给定上行链路数据总是被调度，经由中继的测量的往返时间比直接经由施主eNB的测量的往返时间大大约10 ms。
Relaying is a feature defined in LTE Release 10 to provide coverage in new areas and/or to improve cell-edge throughput. For the purpose of investigating relay's performance in a real network, an LTE TDD in-band relay prototype was developed. Based on this prototype some field measurements were conducted using LTE Release-8 terminals. Both indoor scenarios and outdoor scenarios were tested. Measurement results show that relays (once properly deployed) provide good coverage in the coverage holes of a donor eNB. Besides coverage extension, relays can also improve data rate in the poorly-covered area of a donor eNB, i.e. cell edge. The throughput of a terminal served by this relay prototype reaches around 8 Mbps in the uplink and 20 Mbps in the downlink. Regarding latency, given uplink data is always scheduled, the measured round-trip time via the relay is around 10 ms larger than that directly via the donor eNB.