Patent ID: 7372842
Filing Date: 2008-05-13
Classification: H04L,H04W

Abstract:
1. A method for transmitting a high-speed packet data in a mobile communication system including a first Node B, a UE (User Equipment) located in a cell occupied by the first Node B, and a second Node B neighboring to the first Node B, wherein the mobile communication system transmits a control signal over a shared control channel in order to transmit the high-speed packet data from the first Node B to the UE, and has a downlink transmission period for transmitting the high-speed packet data over a data channel, an uplink transmission period for transmitting from the UE to the first Node B an acknowledgement signal indicating whether the UE has received the high-speed packet data from the first Node B, and a transmission gap required by the UE to acquire second Node B information necessary for a handover to the second Node B when the UE enters a handover region between the first Node B and the second Node B, wherein a HSDPA cycle including the downlink transmission period and uplink transmission period is a minimum period required for transmitting data, the method comprising the steps of: transmitting, by the first Node B, the high-speed packet data to the UE from the first Node B if a period from a start point of the HSDPA cycle to a start point of the transmission gap is greater than or equal to the downlink transmission period and is less than the size of the HSDPA cycle; and receiving, by the UE, the high-speed packet data and transmitting, by the UE, the acknowledgement signal to the Node B after transmission gap.