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技 术 文 件
技术文件名称:LTE类产品测试方法指导
(CMW500)
技术文件编号: 版 本:V1.0
共 53 页 (包括封面)
拟 制 审 核 会 签 标准化 批 准
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目录
1.1 CMW500初始配置设置 ........................................................................................................ 3 1.2最大发射功率测试 ................................................................................................................. 9 1.3最大功率衰减(MPR) ....................................................................................................... 11 1.3附加最大功率衰减(A-MPR) ........................................................................................... 13 1.3配置UE功率测试 ................................................................................................................ 15 1.4矢量幅度误差EVM(PUSCH)......................................................................................... 18 1.5频率误差 ............................................................................................................................... 20 1.6占用带宽 ............................................................................................................................... 20 1.7 ACLR临道泄露比 ................................................................................................................ 21 1.8绝对功率控制容限 ............................................................................................................... 25 1.9相对功率控制容限 ............................................................................................................... 29 1.10带内发射(InBandEmissions) ......................................................................................... 34 1.11 IQ Const ............................................................................................................................... 35 1.10 EVM vs C(subcarrier) .................................................................................................... 38 1.11 Spectrum Flatness ................................................................................................................ 38 1.12 Spectrum Emission Mask .................................................................................................... 40 2.1 LTE Ext.BLER ...................................................................................................................... 42 2.2最大输入电平 ....................................................................................................................... 44 附录: ......................................................................................................................................... 46
A.LTE对应频段 .................................................................................................. 46 B.EVM的计算 .................................................................................................... 48 C.频谱发射模板的通过判定 .............................................................................. 48 D.最大功率衰减的测试目的 .............................................................................. 48 E.LTE综测软件使用介绍 .................................................................................. 49 F.LTE校准校准环境的搭建 ............................................................................... 51
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1.1 CMW500初始配置设置
针对CMW500的初始化操作进行介绍,主要进行信令下的测试。 初始化设置
(1)点击CMW500左上角RESET键,弹出复位界面
(2)选择Global菜单下的Reset选项,然后点击Reset按钮确认
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(3)设置线损,在LTE Signaling界面下点击Config按钮,在RF Settings下选择测试端口以及线损,设置为1.00dB
(4)设置功率控制模式,在LTE Signaling界面下点击Config按钮,在Uplink Power
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Control下选择TX Power Control(TPC),Active TPC Setup选择为Max power模式。
(6)网络连接设置,在LTE Signaling界面下点击Config按钮,在Connection下选择Additional Spectrum Emission设置为NS_01模式。UE Meas. Filter Coefficient设置FC4模式。
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