User equipment and system performing transmission and reception operations

A method for a user equipment (UE), comprising the steps of:

• receiving a system information configuration for at least one system information (SI) message, the configuration indicating a periodicity at which the at least one SI message is being broadcasted,
• determining that receiving the at least one SI message, to be broadcasted in one of plural first time windows that are reoccurring at the indicated periodicity, is unsuccessful, and
• transmitting a SI request for the at least one SI message after determining the unsuccessful receipt of the at least one SI message, wherein the SI request includes an indication of the at least one SI message to be broadcasted,
• wherein:
• receiving the at least one SI message within at least one second time window occurs after the one of the plural first time windows and before the next of the first time window that is reoccurring at the indicated periodicity, and determining that receiving the at least one SI message is successful.

A base station (BS), comprising:

• a transmitter, which in operation, transmits a system information configuration for at least one system information (SI) message, the configuration indicating a periodicity at which the at least one SI message is being broadcasted, and
• a receiver, which in operation, receives a SI request for the at least one SI message after a determination of an unsuccessful receipt of the at least one SI message to be broadcasted in one of plural first time windows that are reoccurring at the indicated periodicity, wherein the SI request includes an indication of the at least one SI message to be broadcasted,
• wherein:
• the transmitter, in operation, transmits the at least one SI message within at least one second time window which occurs after the one of the plural first time windows and before the next of the first time window that is reoccurring at the indicated periodicity, enabling the determination that receiving the at least one SI message is successful.

A method for a base station (BS), comprising the steps of:

• transmitting a system information configuration for at least one system information (SI) message, the configuration indicating a periodicity at which the at least one SI message is being broadcasted, and
• receiving a SI request for the at least one SI message after a determination of an unsuccessful receipt of the at least one SI message to be broadcasted in one of plural first time windows that are reoccurring at the indicated periodicity, wherein the SI request includes an indication of the at least one SI message to be broadcasted,
• wherein:
• transmitting the at least one SI message within at least one second time window which occurs after the one of the plural first time windows and before the next of the first time window that is reoccurring at the indicated periodicity, enabling the determination that receiving the at least one SI message is successful.