different block diagrams of different widely used LTE modulation techniques with Gray coding and BER performances in a wireless channel

物理上行控制信道PUCCH，用于承载上行链路控制信息，根据所承载的上行控制信息的不同，LTE物理层支持不同的PUCCH格式，采用不同的发送方式。(The physical uplink control channel PUCCH is used to carry uplink control information. According to the different uplink control information, LTE physical layer supports differe

TD-LTE下行传输采用了MIMO-OFDM的物理层构架，通过最多4个发射天线并行传输多个（最多4个）数据流，能够有效地提高峰值传输速率。LTE的物理层处理过程中，预编码是其核心功能模块，物理下行共享信道的几种主要传输模式都是通过预编码实现的。(The td-scdma LTE downlink transmission adopted MIMO - OFDM frame, the physical transmission antennas parallel transmission by u

3D-MIMO信道模型 仿真代码 可由此建立LTE现今采用的3DMIMO模型(MATLAB simulation program, based on multivariate statistical modeling method of three-dimensional spatial domain 3D MIMO channel. The 2D MIMO channel modeling is extended to three-dimensional spatial domain chan