Patent ID: 9072015
Filing Date: 2015-06-30
Classification: H04L,H04W

Abstract:
1. A method of performing handover by a mobile terminal from a source base station to a target base station, the mobile terminal having a Radio Resource Control (RRC) layer and a Radio Link Control (RLC) layer, the method comprising: receiving, at the RRC layer of the mobile terminal, a handover command from the source base station; transmitting, by the RRC layer of the mobile terminal to the RLC layer of the mobile terminal, an indication associated with the handover command; upon receiving the indication, reassembling, at the RLC layer of the mobile terminal, at least one RLC service data unit (SDU) from at least one protocol data unit (PDU) having a sequence number that is less than a variable, wherein the variable indicates a sequence number following a highest sequence number among at least one PDU received out of sequence by the RLC layer of the mobile terminal; and delivering the reassembled at least one RLC SDU from the RLC layer of the mobile terminal to an upper layer of the mobile terminal.