Patent ID: 6778501
Filing Date: 2004-08-17
Classification: H04L

Abstract:
A method for acknowledging data packet reception status, in accordance with a Selective Repeat ARQ scheme, for a sequence of data packets being transmitted from a sending node to a receiving node in a telecommunications network, wherein each data packet is assigned a sequence number indicating an order of transmission, and wherein the sequence of data packets are grouped into blocks of data packets, said method comprising the steps of:generating a first bitmap number which identifies a first block of data packets by defining the sequence number of the first data packet in the first block of data packets; generating a first bitmap which defines the reception status for the data packets associated with the first block of data packets; generating a second bitmap number which identifies a second block of data packets relative to the first block of data packets; generating a second bitmap which defines the reception status for the data packets associated with the second block of data packets; and transmitting the first bitmap number, the first bitmap, the second bitmap number and the second bitmap from the receiver to the sender.