Patent ID: 8824376

Claim:
A method for sending status information in a mobile communications system, the method comprising: constructing a status protocol data unit (PDU), the status PDU used to provide positive and/or negative acknowledgements of acknowledged mode data (AMD) PDUs or portions of AMD PDUs; and transmitting the constructed status PDU to a peer radio link control (RLC) entity, wherein the constructing step is performed by considering available resources such that the constructed status PDU fits to a total size of the available resources, and by using a receive state variable and a maximum status transmit state variable, wherein the available resources refer to the total size of RLC PDUs indicated by a lower layer, and wherein the status PDU is for AMD PDUs with sequence numbers that include a sequence number of the receive state variable and at least one sequence number between the sequence number of the receive state variable and a sequence number of the maximum status transmit state variable.