Patent ID: 9094875
Filing Date: 2015-07-28
Classification: H04L,H04W

Abstract:
1. A mobile station comprising: a receiver configured to receive a first PDCP (Packet Data Convergence Protocol) PDU (Protocol Data Unit) to which a first sequence number is added from a source base station and a second PDCP PDU from a target base station that applies a second sequence number transferred from the source base station as a sequence number of a PDCP (Packet Data Convergence Protocol) SDU (Service Data Unit) received from a host station and creates the second PDCP PDU; a buffer configured to store a PDCP SDU corresponding to the first PDCP PDU and a PDCP SDU corresponding to the second PDCP PDU; and a reordering unit configured to perform in order delivery of the stored PDCP SDUs based on the sequence numbers corresponding to the PDCP SDUs.