Methods, systems and computer readable media for simulating per user equipment (UE) doppler shifts for testing air interface devices

摘要

The subject matter described herein includes methods, systems, and computer readable media for simulating per-UE Doppler shifts. One exemplary method includes generating uplink signals to be transmitted from a plurality of different simulated UEs to an air interface device under test. The method further includes applying per-UE Doppler shifts to the signals, wherein applying per-UE Doppler shifts includes applying different Doppler shifts to at least some of the signals. The method further includes transmitting the signals to the air interface device under test.

主权项

1. A method for testing an air interface device using per user equipment (UE) Doppler shifted signals, the method comprising:
at a network equipment test device:
generating uplink signals including per-UE time domain uplink signals to be transmitted from plural simulated UEs to an air interface device under test;applying per-UE Doppler shifts to the per-UE time domain uplink signals, wherein applying per-UE Doppler shifts to the per-UE time domain uplink signals includes applying different Doppler shifts to at least some of the per-UE time domain uplink signals, wherein applying per-UE Doppler shifts includes utilizing a plurality of per UE Doppler in the network equipment test device that apply Doppler shifts to the per-UE time domain uplink signalsperforming discrete Fourier transformation and subcarrier mapping of the per-UE time domain, Doppler shifted uplink signals to produce a frequency domain entire bandwidth uplink signal;performing inverse fast Fourier transformation of the frequency domain entire bandwidth uplink signal to produce a time domain entire bandwidth uplink signal; andtransmitting the time domain entire bandwidth uplink signal to the air interface device under test.