Out of sequence delivery of an SDU in a radio device

A radio device comprising:

• processor circuitry;
• and
• a storage unit storing instructions executable by said processor circuitry whereby said radio device is operative to:
• receive a plurality of Protocol Data Units, PDUs, of a PDU sequence over a radio interface;
• detect that a PDU of the sequence of the received PDUs is missing;
• for each of the received PDUs, identify which Service Data Unit(s), SDU, it relates to;
• based on said identifying, determine that a complete SDU is obtainable from one or several PDUs of the received PDUs, which one or several PDUs are later in the sequence of the received PDUs than the missing PDU;
• obtain the complete SDU from said one or several PDUs;
• perform a packet inspection of the obtained complete SDU to determine the type of data it carries;
• based on the performed packet inspection, determine that the complete SDU fulfils a predetermined criterion;
• and
• deliver the complete SDU which fulfils the predetermined criterion to a higher layer in the radio device, before receiving a retransmission of the PDU which was not properly received.