A method (100, 200, 300, 400) of operating a network node, the method comprising: attempting to obtain a scheduled uplink transmission from a transmitter; in response to successful decoding at the network node of the scheduled uplink transmission, concluding (103, 406) that the uplink transmission is not skipped by the transmitter; in response to unsuccessful decoding at the network node of the scheduled uplink transmission and a signal strength measurement for the attempt to obtain the scheduled uplink transmission being below a threshold, concluding (105, 411) that the uplink transmission is skipped by the transmitter; and in response to unsuccessful decoding at the network node of the scheduled uplink transmission and the signal strength measurement for the attempt to obtain the scheduled uplink transmission exceeding the threshold, performing (106, 203, 416) rescheduling of the uplink transmission, characterized by the method further comprising, for an n:th rescheduling of the uplink transmission, wherein n ≥ 1: attempting to obtain an n:th rescheduled version of the uplink transmission; and in response to unsuccessful decoding at the network node of the n:th rescheduled version of the uplink transmission and a signal strength measurement for the attempt to obtain the n:th rescheduled version of the uplink transmission exceeding a threshold: checking whether the number n of times that the uplink transmission has been rescheduled has reached a threshold number; and in response to the threshold number having been reached, concluding that the uplink transmission is not skipped by the transmitter, and in response to concluding that the uplink transmission is not skipped by the transmitter, updating (109, 204): an outer loop link adaptation adjustment; and/or a block error rate, BLER, counter. attempting to obtain a scheduled uplink transmission from a transmitter; in response to successful decoding at the network node of the scheduled uplink transmission, concluding (103, 406) that the uplink transmission is not skipped by the transmitter; in response to unsuccessful decoding at the network node of the scheduled uplink transmission and a signal strength measurement for the attempt to obtain the scheduled uplink transmission being below a threshold, concluding (105, 411) that the uplink transmission is skipped by the transmitter; and in response to unsuccessful decoding at the network node of the scheduled uplink transmission and the signal strength measurement for the attempt to obtain the scheduled uplink transmission exceeding the threshold, performing (106, 203, 416) rescheduling of the uplink transmission, characterized by the method further comprising, for an n:th rescheduling of the uplink transmission, wherein n ≥ 1: attempting to obtain an n:th rescheduled version of the uplink transmission; and in response to unsuccessful decoding at the network node of the n:th rescheduled version of the uplink transmission and a signal strength measurement for the attempt to obtain the n:th rescheduled version of the uplink transmission exceeding a threshold: checking whether the number n of times that the uplink transmission has been rescheduled has reached a threshold number; and in response to the threshold number having been reached, concluding that the uplink transmission is not skipped by the transmitter, and in response to concluding that the uplink transmission is not skipped by the transmitter, updating (109, 204): an outer loop link adaptation adjustment; and/or a block error rate, BLER, counter. attempting to obtain an n:th rescheduled version of the uplink transmission; and in response to unsuccessful decoding at the network node of the n:th rescheduled version of the uplink transmission and a signal strength measurement for the attempt to obtain the n:th rescheduled version of the uplink transmission exceeding a threshold: checking whether the number n of times that the uplink transmission has been rescheduled has reached a threshold number; and in response to the threshold number having been reached, concluding that the uplink transmission is not skipped by the transmitter, and checking whether the number n of times that the uplink transmission has been rescheduled has reached a threshold number; and in response to the threshold number having been reached, concluding that the uplink transmission is not skipped by the transmitter, and in response to concluding that the uplink transmission is not skipped by the transmitter, updating (109, 204): an outer loop link adaptation adjustment; and/or a block error rate, BLER, counter.