Patent ID: 7283474
Filing Date: 2007-10-16
Classification: H04L,H04W

Abstract:
1. A packet data transmission network system, comprising: a receiver; a network element; and a sender for transmitting data packets to the receiver through a packet data connection via the network element and a radio part, the receiver being arranged to acknowledge each received data packet by an acknowledgment message containing header data comprising a field indicating a window size, a number of transmitted bytes for which the sender has not received an acknowledgment from the receiver being not allowed to exceed the window size; wherein said network element is arranged to buffer data packets transmitted from the sender to the receiver and to receive the acknowledgement message transmitted from the receiver to the sender, detect transmission conditions comprising buffering conditions of the data packets at said network element and radio conditions of the radio part between the sender and the receiver, and modify the field indicating the window size included in the acknowledgement message in accordance with the transmission conditions.