PACKET DATA RESENDING CONTROL METHOD AND APPARATUS THEREFOR

Title:

PACKET DATA RESENDING CONTROL METHOD AND APPARATUS THEREFOR

Document Type and Number:

WIPO Patent Application WO/2003/049484

Kind Code:

A1

Abstract:

A packet data resending control method and an apparatus for the method in packet data communication, especially downstream high−speed packet data transmission such as HSDPA, having an enhanced resending transmission efficiency by receiving an upstream control signal of acknowledgment&sol negative responses efficiently. In a network constructed to include a base station host control device, a plurality of base station under the control device and a terminal station, the packet data resending control method comprises allowing the base station host device to send downstream packet data, to be transmitted to the terminal station, to the base stations, transmitting the downstream packet data from a specific base station which is one of the base stations to the terminal station, allowing the base stations to receive an upstream control signal to be returned from the terminal station for acknowledging the reception of the downstream packet data, notifying the specific base station of the upstream control signal received by another base station other than the specific base station through the base station host control device, and allowing the specific base station to determine packet data to be resent on the basis of the reception state of the upstream control signal from the terminal station and the reception state of the upstream control signal of the other base station.

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Inventors:

OBUCHI KAZUHISA (JP)
YANO TETSUYA (JP)

Application Number:

PCT/JP2001/010522

Publication Date:

June 12, 2003

Filing Date:

November 30, 2001

Export Citation:

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Assignee:

FUJITSU LTD (JP)
OBUCHI KAZUHISA (JP)
YANO TETSUYA (JP)

International Classes:

H04L1/18; H04W28/00; H04W28/04; H04W36/18; H04W88/08; H04W88/12; H04L1/00; H04L1/12; H04L1/16; (IPC1-7): H04Q7/38

Foreign References:

JPH11308657A	1999-11-05
JP2001237753A	2001-08-31

Other References: