A receiving apparatus is to receive data by use of a second protocol data unit, which stores first protocol data units of a first layer set for each of multiple radio bearers and which is based on a second layer corresponding to a lower layer of the first layer. The apparatus includes a providing unit that provides the first protocol data unit, which is stored in the second protocol data unit with specific information specifying the second protocol data unit in the second layer. The apparatus includes a discarding unit that provides another first protocol data unit, which is stored in the second protocol data unit storing the erroneous first protocol data unit with reference to the specific information in the case that a predetermined first protocol data unit includes an error in the first layer.