Patent ID: 8989004
Filing Date: 2015-03-24
Classification: H04L,H04W

Abstract:
1. A method of wireless communication operable at a user equipment, comprising: receiving at least a portion of a multi-link packet data convergence protocol (PDCP) flow from each of a plurality of base stations; reordering PDCP protocol data units (PDUs) corresponding to the multi-link PDCP flow according to a PDCP sequence number in each of the PDCP PDUs to form a queue of received PDCP PDUs; determining that a gap in the PDCP sequence numbers exists in the queue of received PDCP PDUs; starting a skew timer based on determining that the gap exists; passing, to one or more upper layers from the queue of received PDCP PDUs, PDCP PDUs having contiguous PDCP sequence numbers lower than a PDCP sequence number corresponding to the gap, when the skew timer corresponding to the gap expires; and flushing, from the queue of received PDCP PDUs, PDCP PDUs having PDCP sequence numbers higher than the PDCP sequence number corresponding to the gap, without passing the PDCP PDUS having the PDCP sequence numbers higher than the PDCP sequence number corresponding to the gap to the one or more upper layers.