METHOD AND SYSTEM FOR TESTING A RADIO FREQUENCY DATA PACKET SIGNAL TRANSCEIVER AT A LOW NETWORK MEDIA LAYER

摘要

Method and system for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) by monitoring RF data packet signals between a tester and a DUT at a low network media layer, such as the physical (PHY) layer in accordance with the Open Systems Interconnection (OSI) reference model stack. By testing at a low layer, fewer signal conversions and data packet operations are required to perform various basic DUT tests, such as data packet throughput, DUT signal transmission performance, DUT packet type detection without packet decoding, validation of rate adaptation algorithms, and bit error rate (BER) testing.

主权项

1. A method for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) at a low network media layer, comprising:
conveying to a DUT a first RF data packet signal having a first data packet signal duration T and including a first plurality of N data packets and a plurality of first bits B contained in said first plurality of N data packets; receiving a second RF data packet signal originating from said DUT and including a second plurality of data packets with respective data packet start times and occupying respective frame intervals with respective frame interval start times; responding to at least said second RF data packet signal by providing one or more test signals related to at least said second plurality of data packets; and processing said one or more test signals by performing one or more of
determining a ratio of B*N/T when said second RF data packet signal includes a plurality of DUT response packets responsive to said first RF data packet signal,detecting one or more time differences, among said second plurality of data packets, between one or more of said respective data packet start times and one or more related ones of said respective frame interval start times,detecting one or more data packet types included in said second RF data packet signal related to said respective frame intervals,detecting a reduction in a data rate included in said second RF data packet signal related to one or more interruptions in a sequence of tester response packets included in said first RF data packet signal and responsive to said second RF data packet signal, ordetecting a number of said plurality of DUT response packets responsive to said first RF data packet signal while conveying said first RF data packet signal to said DUT with a plurality of signal powers.