摘要
随着移动互联网的发展,为了获得更高的峰值速率和频谱效率,第三代合作伙伴计划(3GPP)提出了长期演进(LTE)系统。2010年以来,全球共部署了113个LTE商用网络,但是其中大部分都是基于频分双工(FDD)的。本文首先研究了时分双工LTE(TD-LTE)系统中的4种主要多输入多输出(MIMO)传输模式(TM);然后通过链路级仿真,评估了不同信噪比和参数配置的8×2下行平均吞吐量;最后给出了结合信道模拟器的室内性能测试方法。
With the development of mobile Internet service, long term evolution （LTE） system was proposed in the third gen- eration partnership project （3GPP） to provide higher data rates and frequency efficiency. Since the year of 2010, 113 LTE net-works have been commercially deployed worldwide, and most of the networks are based on frequency division duplexing （FDD）. In this paper, four major MIMO transmission modes （TMs） in time division-LTE （TD-LTE） are studied and analyzed. Then, link level simulation is carried out to evaluate the 8 × 2 downlink throughput for different signal to noise ratios and parameter settings. Finally, indoor test method is prooosed based on the channel emulator.
出处
《电信网技术》
2013年第9期58-62,共5页
Telecommunications Network Technology
