3 结果
lte user equipment (ue) receiver performance has significant impact to cellular radio network coverage and capacity. it determines the maximum data throughput across the air interface between the lte base station (enb, evolved node b) and the mobile network subscriber ue, thus it determines the total capacity across the air interface. therefore, it is one of the most important measurements to verify the actual receiver performance of individual devices, and a key metric to compare different devices, in particular.this paper shall give an introduction to receiver performance measurements and discusses the measurement metrics as well as the challenges of over the air (ota) measurements.
5g networks will need to offer more capacity and flexibility while lowering the operational expenses of the system. two new technologies can simultaneously address both the increase in capacity and the increase in energy efficiency: virtualization & massive mimo. this white paper provides an overview of test solutions addressing current and future requirements for antenna verification including both conducted and over-the-air (ota) test methods, which result from applying massive mimo antenna technology.this white papers complements the white paper (1ma276) from rohde & schwarz, which introduces fundamental theory behind beamforming antennas and provides calculation methods for radiation patterns, a number of simulation results as well as some real world measurement results for small linear arrays.
现代移动电话能够同时支持蜂窝及非蜂窝无线通信标准。 但这也意味着单个设备内的子系统在操作时必须极为接近（设备内共存）。 产生的相互泄漏有时候可能引起极大的干扰。该应用指南使用初步理论分析并且展示了可以如何测量设备内共存的问题。 如需获取德文版本，请访问 。