Viavi Solutions Inc.
Method for reducing false detection of successful decoding of cyclic redundancy check codes

Abstract:

A network testing device may receive, from a base station, an encoded physical downlink control channel (PDCCH) payload and decode the encoded PDCCH payload to obtain candidate PDCCH payloads and to generate path metrics (PMs), wherein each PM of the PMs corresponds to one candidate PDCCH payload of the candidate PDCCH payloads. The network testing device may perform a cyclic redundancy check on each of the candidate PDCCH payloads to determine, from the PMs, a passing PM, and may determine, based on the PMs, a confidence value associated with the passing PM. The network testing device may discard, based on determining that the confidence value does not satisfy a threshold, the passing PM, or may output, based on determining that the confidence value satisfies the threshold, a candidate PDCCH payload corresponding to the passing PM. The network testing device may transmit, based on the candidate PDCCH payload, data to the base station.