Patent ID: 8532010

Claim:
A transmission method for an uplink transport layer in a mobile communication network comprising a plurality of mobile stations, a plurality of base stations connected to said plurality of mobile stations, and a radio network controller connected to said plurality of base stations, each of said plurality of base stations including a transmission queue, the method comprising: transmitting a data packet, to which a transmission sequence number is attached, to said plurality of base stations from said mobile station, the transmission sequence number being increased on a packet-by-packet basis; receiving the transmitted data packet from said mobile station at said plurality of base stations; decoding the received data packet at said plurality of base stations; storing a correctly decoded data packet into said transmission queue at each of said plurality of base stations; transmitting the data packet stored in said transmission queue to said radio network controller from said plurality of base stations; receiving said transmitted data packet from said plurality of base stations at said radio network controller; updating reception status at said radio network controller; sending said reception status to said plurality of base stations from said radio network controller; receiving said reception status from said radio network controller at a first base station from among said plurality of base stations; and updating, at said first base station, said transmission queue of the first base station in response to said received reception status, wherein said reception status is a next expected packet transmission sequence number generated , by said radio network controller, after combining data packets transmitted from said plurality of base stations, and wherein said updating of the transmission queue of the first base station includes the first base station removing a data packet stored in its transmission queue if the transmission sequence number of the data packet is smaller than said next expected packet transmission sequence number.