Patent ID: 9585061
Date: 2017-02-28
CPC Classifications: H04L,H04W

Claim:
1. A method for processing data in a mobile device, the method comprising: transferring, by the mobile device to an RLC (Radio Link Control) layer of the mobile device, one or more PDCP SDUs to which respective PDCP (Packet Data Convergence Protocol) SNs (sequence numbers) are added, wherein the respective PDCP SNs are associated with corresponding SDUs of the one or more PDCP SDUs and are used to cipher the corresponding SDUs of the one or more PDCP SDUs; and forwarding, by the mobile device after handover, at least one PDCP SDU of which delivery has not been confirmed from among the one or more PDCP SDUs by using a respective PDCP SN of the at least one PDCP SDU.