Long-Term Evolution (LTE) is a technological standard for wireless mobile broadband networks. LTE will make the use of the latest technologies. Orthogonal ______ Division Multiple Access ( a technology well suited to achieving high peak data rates in high-spectrum bandwidths) will be used on the downlink. On the uplink, LTE will use ______ Carrier Frequency Division Multiple Access, which offers advantages in power ______ and terminal battery life as compared to technologies used today. The latest antenna technologies will also be used, such as ______ , which employs multiple transmit and receive antennas. This results in numerous data paths effectively operating in ______ and-through appropriate coding/decoding-significant throughput gains.
A. parallel B. Serial
C. ManageabilityD. Adaptability
参考答案：A
解析： 长期演进(LTE)是一个无线移动宽带网络的技术标准。LTE使用了目前最新的一些技术。在其下行链路中采用的正交频(Frequency)分多址接入(OFDMA)，是一种非常适合实现高带宽的峰值数据速率的技术。在上行链路上，LTE将采用单(Single)载波频分多址接入(SC-FDMA)，它比当前使用的一些技术提供了更高的能源效率(efficiency)和终端电池寿命等优势。LTE也使用了诸如MIMO这一最新的天线技术，采用多个发射和接收天线。在多条的数据通信路径上可以有效地实现并行(parallel)操作，并通过采用相应的编码/解码技术，获得较高的通信容量。