Patent ID: 11968000
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A non-transitory computer readable medium storing software instructions configured to control at least one processor, of a network node of a communications network configured to provide Citizen Broadband Radio Service (CBRS) to at least one end user device (EUD) in a coverage area of the network node, to perform steps of:
detecting interference from at least one aggressor device in the network; and
reporting the detected interference to at least one of a Spectrum Access System (SAS) and a co-existence manager (CxM) of the communications network;
wherein detecting interference from at least one aggressor device in the network comprises:
receiving, from each of the or more EUDs in the coverage area of the network node, a respective report including, for each one of two or more signal sources: an identifier of the signal source, and a parameter value indicative of a respective power level of a signal received by the EUD from the signal source, the two or more signal sources comprising the network node and at least one interference signal source;
calculating, for each one of the one or more EUDs in the coverage area of the network node, a respective Signal to Interference Ratio (SIR) value for each interference signal source, based on the received parameter values;
calculating a respective Cumulative Distribution Function (CDF) for each interference signal source, based on the SIR values calculated for each one of the one or more EUDs;
calculating, for each interference signal source, a respective probability that SIR is not more than a first predetermined threshold, based on the respective CDF of that interference signal source; and
identifying each interference signal source as an aggressor device when the respective probability calculated for that interference signal source is equal to or more than a second predetermined threshold.