Method for efficient retransmission timeout estimation in NACK-based protocols

A retransmission timeout and negative acknowledgment technology, applied in transmission modification based on link quality, data exchange network, digital transmission system, etc., can solve the problems that cannot be minimized at the same time

Inactive Publication Date: 2003-07-16
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Description
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However, these two parameters cannot be minimized simultaneously because they represent a f

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  • Method for efficient retransmission timeout estimation in NACK-based protocols
  • Method for efficient retransmission timeout estimation in NACK-based protocols
  • Method for efficient retransmission timeout estimation in NACK-based protocols

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[0025] In the following description, for the purpose of explanation and not limitation, specific details such as special structure, interface, technology, etc. are proposed in order to provide a thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented in other embodiments that deviate from these specific details. Moreover, for the sake of clarity, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to affect the description of the present invention by unnecessary details.

[0026] According to an embodiment of the present invention, a mechanism for controlling the retransmission of data packets in a digital communication environment is provided. Referring to FIG. 2, the system 10 using the present invention includes a first system 12, such as a server device, and a second system 14, such as a client device, communicating with each other through an access li...

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Abstract

Disclosed is a system and method for estimating retransmission timeout (RTO) in a real-time streaming applications over the Internet between a server and a client. Accordingly, the present invention employs retransmission timeout (RTO) in NACK-based applications to support multiple retransmission attempts per lost packet, wherein the RTO is estimated by an actual around-trip delay (RTT) and a smooth inter-packet delay variance.

Description

[0001] Compare related applications [0002] This application claims priority to the U.S. Provisional Application Serial No. 60 / 262,591 filed on January 18, 2001, the teachings of which are incorporated herein for reference. Technical field [0003] The present invention relates to retransmission timeout (RTO) estimation, and particularly to a system and method for estimating the RTO in a negative acknowledgement (NACK)-based real-time streaming application that supports multiple retransmissions of the same packet. Background technique [0004] Generally, there are two types of Internet transmission protocols that support lost packet recovery in data communication networks. The first method is proposed under Transmission Control Protocol (TCP) based on ACK, which involves a receiver that sends a positive acknowledgment (ACK) in response to each received packet. The second method is based on NACK under the User Datagram Protocol (UDP), which involves a receiver that sends a NACK in...

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Application Information

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IPC IPC(8): H04L1/16H04L1/00H04L1/12H04L1/18H04L12/56H04L29/02H04L29/06
CPCH04L1/0021H04L29/06027H04L1/0001H04L47/283H04L1/1854H04L1/1809H04L47/10H04L1/1848H04L2001/125H04L29/06H04L9/40H04L1/16H04L65/1101
Inventor D·洛圭诺夫H·拉哈
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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