A radio frequency system for performing RF-based sensing in order to detect sensing events, the system comprising multiple nodes (26, 28, 30) configured for transmitting and/or receiving radio frequency messages, wherein the radio frequency messages include radio frequency based sensing messages and radio frequency data messages, and the radio frequency system configured for: - determining that at least part of the radio frequency sensing messages and/or at least part of the radio frequency data messages transmitted by a transmitting node of the radio frequency system were not received by one or more receiving nodes (28, 30) of the radio frequency system and - determining whether missing of at least part of the radio frequency messages is caused by movement of an object, animal or person in at least one transmission path between the transmitting node and the one or more receiving nodes (28, 30) based on one or more radio frequency system criteria, wherein the one or more radio frequency system criteria comprise at least one of: - whether only at least part of the radio frequency based sensing messages, whether only at least part of the radio frequency data messages, or whether both at least part of the radio frequency based sensing messages and at least part of the radio frequency data messages are missing; and - a discrepancy between missed parts of the radio frequency based sensing messages and missed parts of the radio frequency data messages, wherein the discrepancy comprises a difference of an amount of missed parts of RF-based sensing messages and an amount of missed parts of RF data messages, or a ratio of the amount of the missed parts of the RF-based sensing messages and the amount of the missed parts of the RF data messages. - determining that at least part of the radio frequency sensing messages and/or at least part of the radio frequency data messages transmitted by a transmitting node of the radio frequency system were not received by one or more receiving nodes (28, 30) of the radio frequency system and - determining whether missing of at least part of the radio frequency messages is caused by movement of an object, animal or person in at least one transmission path between the transmitting node and the one or more receiving nodes (28, 30) based on one or more radio frequency system criteria, wherein the one or more radio frequency system criteria comprise at least one of: - whether only at least part of the radio frequency based sensing messages, whether only at least part of the radio frequency data messages, or whether both at least part of the radio frequency based sensing messages and at least part of the radio frequency data messages are missing; and - a discrepancy between missed parts of the radio frequency based sensing messages and missed parts of the radio frequency data messages, wherein the discrepancy comprises a difference of an amount of missed parts of RF-based sensing messages and an amount of missed parts of RF data messages, or a ratio of the amount of the missed parts of the RF-based sensing messages and the amount of the missed parts of the RF data messages. - whether only at least part of the radio frequency based sensing messages, whether only at least part of the radio frequency data messages, or whether both at least part of the radio frequency based sensing messages and at least part of the radio frequency data messages are missing; and - a discrepancy between missed parts of the radio frequency based sensing messages and missed parts of the radio frequency data messages, wherein the discrepancy comprises a difference of an amount of missed parts of RF-based sensing messages and an amount of missed parts of RF data messages, or a ratio of the amount of the missed parts of the RF-based sensing messages and the amount of the missed parts of the RF data messages.