Patent ID: 9473272
Filing Date: 2016-10-18
CPC Classification: H04L,H04W

Claim Text:
1. A method for two-stage reordering of received protocol data units (PDUs) in a wireless communication system, the method comprising: receiving, in a wireless transmit receive unit (WTRU) PDUs from a plurality of Node-Bs, wherein each of the received PDUs has a transmission sequence number (TSN); reordering the received PDUs from each of the plurality of Node-Bs using the TSN in a MAC layer in different reordering queues; delivering the received PDUs from a plurality of reordering queues to one logical channel in an RLC layer; reordering the received PDUs in the RLC layer based on a sequence number (SN); starting a timer when at least a RLC PDU is missing based on SN of the RLC PDU; and receiving, in at least one of the plurality of Node-Bs, a status report from the WTRU 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.