Communication device and method

Details Communication device and method Communication device and method

2006-01-31

2006-01-31

Nguyen, Chau (Department: 2661)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S235000, C370S230000

Reexamination Certificate

active

06992982

ABSTRACT:
A device and method for controlling data unit communications between a sender and a receiver, and flexibly responding to a potential data loss event. Data to be sent are divided into data units and transmitted from the sender to the receiver. The receiver acknowledges correct receipt of the data units by returning acknowledgment data units to the sender. If the receiver fails to receive a data unit, the sender retransmits the data unit using a flow control procedure using adaptive parameters and the acknowledgment data units. If the receiver then correctly receives and acknowledges the data unit, the sender determines whether the data unit was correctly received as a result of the original transmitting step or the retransmitting step. If the former (i.e., the original transmitting step), an excessive delay response procedure is selectively performed. If the latter (i.e., the retransmitting step), a data unit loss response procedure is selectively performed.

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