LTE Beamforming Testing
应用文章
A common theme in modern wireless communications is the use of multi-antenna techniques, such as beamforming and spatial multiplexing in order to improve the cell capacity and throughput. A common problem encountered by customers today, is the inability to verify and visualize the signal at the RF antenna.
This application note briefly summarizes multi-antenna techniques, before introducing the concept of beamforming, its advantages and specific use within modern communications systems such as LTE. Multi-antenna beamforming measurement challenges are discussed from an eNB basestation test perspective, as well as the importance of calibration when testing the performance of a beamforming transmission system.
An introduction to the Keysight Technologies, Inc. LTE/LTE-A Multi-Channel Reference Solution is provided. This reference solution combines phase coherent, 8-channel PXI VSAs and VSGs with 89600 VSA analysis software and configuration and calibration tools enabling quick visualization and verification of LTE beamforming signals.