5G terminal is more susceptible to environmental impacts because of its more sophisticated and complex design. To investigate the effect of human hands on 5G terminal, we construct the measurement system and test the transmission performance of 5G mobile phone in the free space and human hand model, respectively. The combination of B3 (4G) and N77 (5G) TRP is tested and analyzed since 5G mobile phones need to be connected to both 4G and 5G networks under NSA network. It is obtained that the TRP tested in SAM hand phantom is lower than that of measurements in free space. Moreover, the measured results show that left hand and right hand have different impact on the performance of the mobile phone, which is closely related to the layout of the mobile phone. Therefore, we cannot only use the level of EIRP to evaluate the transmitting performance of DUT, but also need to introduce abnormal rate to evaluate. The abnormal rates of N77 are higher than that of B3 when the DUT is fixed in SAM hand phantom. The test results can help researchers to optimize the layout of mobile phones.

中文翻译：

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SAM手模对EN‐DC 5G终端的TRP的影响

5G终端由于其更复杂，更复杂的设计而更容易受到环境影响。为了研究人的手对5G终端的影响，我们构建了测量系统，并分别在自由空间和人的手模型中测试了5G手机的传输性能。由于需要在NSA网络下将5G手机同时连接到4G和5G网络，因此对B3（4G）和N77（5G）TRP的组合进行了测试和分析。结果表明，在SAM手模中测试的TRP低于自由空间中的测量值。而且，测量结果表明，左手和右手对手机的性能有不同的影响，这与手机的布局密切相关。因此，我们不仅要用EIRP的水平来评估DUT的传输性能，还要引入异常速率来评估。当DUT固定在SAM手模中时，N77的异常率高于B3。测试结果可以帮助研究人员优化手机的布局。