Patent ID: 9326215
Filing Date: 2016-04-26
CPC Classification: H04L,H04W

Claim Text:
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, a handover command; receiving, at the RLC layer, an indication associated with the handover command; upon receiving the indication, reassembling, at the RLC layer, 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; delivering, at the RLC layer, the reassembled at least one RLC SDU to an upper layer of the mobile terminal; and discarding, at the RLC layer, at least one remaining PDU that could not be reassembled into at least one RLC SDU.