Patent ID: 9485040
Filing Date: 2016-11-01
CPC Classification: H04B

Claim Text:
1. A method of testing a data packet signal transceiver, comprising: providing, via a signal path, a test data packet signal having a test data packet signal power and including a plurality of test data packets and a plurality of test data packet signal power levels for reception by a device under test (DUT) having an operating characteristic defined by a data packet error rate (PER) as a function of data packet signal power (PWR) with a maximum PER at a minimum PWR, a minimum PER at a maximum PWR and a plurality of intermediate data packet error rates (PERs) at a plurality of intermediate data packet signal powers (PWRs) between said minimum PWR and said maximum PWR; receiving, from said DUT via said signal path, a plurality of response data packets each of which is indicative of reception of at least one of said plurality of test data packets; computing a test PER as a function of said plurality of response data packets and said plurality of test data packets; repeating said providing, receiving and computing while providing said test data packet signal power iteratively at alternating incrementally higher and lower power levels, at least once on a packet-by-packet basis, to produce, as a function of successive ones of said received pluralities of response data packets and corresponding ones of said pluralities of test data packets, a plurality of subsequent test PERs by decreasing said PWR after computing a test PER lower than a predetermined one of said plurality of intermediate PERs at one of said plurality of intermediate PWRs and increasing said PWR after computing a test PER higher than said predetermined one of said plurality of intermediate PERs, wherein said PER as a function of said PWR defines a non-linear modulation curve having terminating said repeating said providing, receiving and computing in response to said plurality of subsequent test PERs including at least one of