Please clarify the following in LTE PSM mode. Especially TAU is based on time vs frequency is 1/Time. What is frequency second ?? Is it frequency or it is seconds in time ? The unit of CONFIG_LTE_PSM_REQ_RPTAU is based on time.
From
developer.nordicsemi.com/.../README.html
-
CONFIG_LTE_PSM_REQ_RPTAUoption set to a value greater than the value of CONFIG_UDP_DATA_UPLOAD_FREQUENCY_SECONDS.