A wireless terminal communicates over a radio interface with a radio access node of a radio access network (RAN). The wireless terminal comprises receiver circuitry and processor circuitry. The receiver circuitry is configured to receive system information (SI) from the radio access node. The processor circuitry configured to perform an SI message acquisition process to acquire the system information, and terminate the SI message acquisition process after attempting SI message acquisition in accordance with configured information. The configured information may be a first number of modification periods or a prescribed number of transmission opportunities.