公开(公告)号：US20180262283A1

公开(公告)日：2018-09-13

申请号：US15906111

申请日：2018-02-27

Applicant: NXP B.V.

Inventor： GUSTAVO GUARIN ARISTIZABAL ,  Arnaud Sion ,  Ralf Reuter ,  Marcel Welpot

IPC: H04B17/345

Abstract: A wireless communication unit (100) is described that comprises: at least one receiver configured to receive a radio frequency signal on at least one receiver channel (262, 264, 266, 268) and comprising a plurality of receiver circuits; at least one interference detection circuit (244, 248, 252) coupled to an output of at least one of the plurality of receiver circuits and configured to detect a saturation event of a signal output from the at least one of the plurality of receiver circuits; and a controller (114) configured to identify interference in a received signal. The at least one interference detection circuit (244, 248, 252) comprises at least one counter (118) configured to count a number of saturation events in at least one of the plurality of receiver circuits over a time limited period; and at least one comparator (202, 212, 222) coupled to the at least one counter (118) and configured to compare a count value of the number of saturation events from the at least one counter (118) with a counter threshold to indicate a presence of interference in the signal, when the counter threshold is exceeded.

公开(公告)号：US10790916B2

公开(公告)日：2020-09-29

申请号：US15906111

申请日：2018-02-27

Applicant: NXP B.V.

Inventor： Gustavo Guarin Aristizabal ,  Arnaud Sion ,  Ralf Reuter ,  Marcel Welpot

IPC: H04B17/345 ,  G01S7/35 ,  G01S7/285 ,  G01S7/02

Abstract: A wireless communication unit (100) is described that comprises: at least one receiver configured to receive a radio frequency signal on at least one receiver channel (262, 264, 266, 268) and comprising a plurality of receiver circuits; at least one interference detection circuit (244, 248, 252) coupled to an output of at least one of the plurality of receiver circuits and configured to detect a saturation event of a signal output from the at least one of the plurality of receiver circuits; and a controller (114) configured to identify interference in a received signal. The at least one interference detection circuit (244, 248, 252) comprises at least one counter (118) configured to count a number of saturation events in at least one of the plurality of receiver circuits over a time limited period; and at least one comparator (202, 212, 222) coupled to the at least one counter (118) and configured to compare a count value of the number of saturation events from the at least one counter (118) with a counter threshold to indicate a presence of interference in the signal, when the counter threshold is exceeded.