Patent ID: 9538411
Date: 2017-01-03
CPC Classifications: H04W

Claim:
1. A method for transferring a status report in a wireless communication system, the method comprising: configuring a Packet Data Convergence Protocol (PDCP) status report used by a PDCP layer located above a Radio Link Control (RLC) layer, wherein if a field of an extended PDCP sequence number regarding the PDCP status report is configured, the PDCP status report includes an indicator indicating a count value of a first non-received PDCP service data unit (SDU); and transferring the configured PDCP status report to a lower layer, wherein the indicator is a first missing sequence number count (FMS COUNT) value which contains the count value of the first non-received PDCP SDU, and wherein the field of the extended PDCP sequence number is extended up to 15 bits by using three reserved bits.