System level emulation of TD-SCDMA wireless networks

摘要

A wireless network emulation system undersamples log files when the conditions represented in the log files would require a faster refresh rate than the channel emulator can provide. A representative sample may be selected based on number of channel taps, delay spread, maximum value, or being first, last or otherwise identifiable within a group. The RF information from the selected sample is utilized as being representative of a group of related samples for a given time period corresponding to the refresh rate of the channel emulator.

主权项

1. A method comprising:
using at least one computer,
loading at least one log file which represents wireless network conditions;for a selected frequency, loading a group of time slots from the at least one log file corresponding to a predetermined time period based on an emulation resource setting refresh rate;selecting one of the loaded time slots;using radio frequency information associated with the selected time slot to represent the group of time slots;generating a playback file which represents the network conditions based on the radio frequency information selected to represent the group of time slots; andsetting resources of a channel emulator based on the playback file to recreate the wireless network conditions.