Patent ID: 9049016
Filing Date: 2015-06-02
Classification: H04L,H04W

Abstract:
1. A Universal Terrestrial Radio Access Network (UTRAN) for two-stage reordering of received protocol data units (PDUs) comprising: a receiver configured to receive PDUs from a plurality of Node-Bs, wherein each of the received PDUs has a transmission sequence number (TSN); a first reordering entity configured to reorder the received PDUs from each of the plurality of Node-Bs using the TSN in a MAC layer in different reordering queues; a processor configured to deliver the received PDUs from a plurality of reordering queues to one logical channel in an RLC layer; a second reordering entity configured to reorder the received PDUs in the RLC layer based on a sequence number (SN); a timer configured to start when at least a RLC PDU is missing based on SN of the RLC PDU; and a transmitter configured to transmit a status report indicating missing RLC PDU based on SN of the RLC PDU on a condition that the timer expires, wherein the transmission of the status report is delayed on a condition that a RLC PDU is missing based on SN of the RLC PDU and the timer is running.