User equipments, base stations, and communication methods

A base station, comprising:

• control circuitry configured to generate a master information block (MIB) for a serving cell, the MIB including a first RRC parameter providing a subcarrier spacing (SCS) and a second RRC parameter indicating a total number of resource blocks (RBs) for a control resource set (CORESET),
• to determine the serving cell is barred for the UE;
• transmission circuitry configured to transmit, to a user equipment (UE), the MIB of the serving cell, wherein the serving cell is determined as a barred cell for the UE;
• and
• the control circuitry is further configured to determine whether intra-frequency cell reselection on a same frequency as the barred cell or not by the UE based on whether the SCS corresponds to 15 kHz and/or whether the total number is larger than the first value.

A communication method performed by a user equipment (UE), comprising:

• receiving, from a base station, a master information block (MIB) of a serving cell, wherein the serving cell is determined as a barred cell;
• determining, whether a subcarrier spacing (SCS) provided by a first RRC parameter in the MIB corresponds to 15 kHz and/or whether a total number of resource blocks (RBs) indicated by a second RRC parameter in the MIB for a control resource set (CORESET) is larger than a first value;
• and
• determinizing whether to perform intra-frequency cell reselection on a same frequency as the barred cell or not based on whether the SCS corresponds to 15 kHz and/or whether the total number is larger than the first value.