US Patent No: 6,741,555

Number of patents in Portfolio can not be more than 2000

Enhancement of explicit congestion notification (ECN) for wireless network applications

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Abstract

An Explicit Congestion Notification (ECN) method is disclosed for wireless applications to avoid network congestion in a TCP/IP packet-switched network. Such method comprises transmitting, at a source node, data packets to a destination node, via at least an intermediate node; determining, at the intermediate node, if an incipient congestion is encountered, setting a Congestion Experienced (CE) flag in each data packet to notify congestion; sending, at the destination node, an ECN-Echo acknowledgment packet back to the source node to inform congestion; reducing, at the source node, a congestion window and a transmission rate to avoid congestion; if the packet loss is due to congestion, re-transmitting, at the source node, only a lost packet to the destination node; alternatively, if the packet loss is due to transmission error, re-transmitting, the lost packet to the destination node, while increasing a round-trip timeout but maintaining the same congestion window.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NOKIA, INC.IRVING, TX77
VRINGO INFRASTRUCTURE INC.NEW YORK, NY112

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Shiduan Beijing, CN 7 135
Li, Xiang Baltimore, MD 92 208
Ma, Jian Thousand Oaks, CA 66 534
Wu, Jing Redwood City, CA 108 678

Cited Art

Patent Info (Count) # Cites Year
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (2)
6,252,851 Method for regulating TCP flow over heterogeneous networks 91 1998
6,415,329 Method and apparatus for improving efficiency of TCP/IP protocol over high delay-bandwidth network 194 1998
 
AVAYA INC. (1)
6,483,805 Internet differentiated services service for transaction applications 65 1998
 
CISCO TECHNOLOGY, INC. (1)
5,313,454 Congestion control for cell networks 594 1992
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
5,892,753 System and method for dynamically refining PMTU estimates in a multimedia datastream internet system 50 1996
 
NOKIA TELECOMMUNICATIONS OY (1)
6,219,713 Method and apparatus for adjustment of TCP sliding window with information about network conditions 46 1998
 
NOKIA TELECOMMUNICATIONS, INC. (1)
6,215,769 Enhanced acknowledgment pacing device and method for TCP connections 116 1998

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
BROADCOM CORPORATION (7)
7,463,707 Upstream frequency control for docsis based satellite systems 2 2003
7,408,892 Upstream adaptive modulation in DOCSIS based applications 6 2003
8,098,606 Modified upstream channel descriptor messages for DOCSIS-based broadband communication systems 0 2003
7,145,888 Explicit congestion notification for DOCSIS based broadband communication systems 8 2003
7,738,596 High speed data service via satellite modem termination system and satellite modems 4 2003
7,606,188 Explicit congestion notification for DOCSIS based broadband communication systems 1 2006
7,860,041 Upstream adaptive modulation in a communications system 0 2008
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (4)
6,975,591 Methodology for improving TCP throughput over lossy communication links 10 2000
7,050,393 Method, system, and product for alleviating router congestion 0 2001
7,720,951 Method, system, and product for alleviating router congestion 0 2005
7,839,777 Method, system, and apparatus for accelerating resolution of network congestion 1 2007
 
APPLE INC. (2)
6,996,624 Reliable real-time transport protocol 46 2001
7,380,014 Reliable real-time transport protocol 13 2006
 
BITTORRENT, INC. (2)
7,706,260 End-system dynamic rate limiting of background traffic 2 2007
8,385,201 End-system dynamic rate limiting of background traffic 0 2010
 
FUJITSU LIMITED (2)
7,376,748 Data delivering system 0 2000
7,385,931 Detection of network misconfigurations 3 2003
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (2)
7,333,439 Sending/receiving method, and device for the same 2 2001
7,036,069 Method and entity of packet loss distinction 3 2003
 
NOKIA CORPORATION (2)
7,283,469 Method and system for throughput and efficiency enhancement of a packet based protocol in a wireless network 3 2002
7,760,646 Congestion notification in 3G radio access 2 2006
 
SAMSUNG ELECTRONICS CO., LTD. (2)
7,310,761 Apparatus and method for retransmitting data packets in mobile ad hoc network environment 2 2004
7,881,200 Method of controlling transmission rate and communication device using the same 0 2006
 
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (2)
7,200,111 Method for improving TCP performance over wireless links 11 2001
7,020,083 Method for improving TCP performance over wireless links 19 2001
 
ALCATEL LUCENT (1)
7,782,847 Method and system for verifying connectivity of multi-segment pseudo-wires by tracing 3 2006
 
CISCO TECHNOLOGY, INC. (1)
7,787,361 Hybrid distance vector protocol for wireless mesh networks 2 2006
 
CONEXANT SYSTEMS, INC. (1)
7,315,515 TCP acceleration system 5 2003
 
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (1)
7,233,572 Method and apparatus for transmitting packet by using indirect acknowledgement timer in wired/wireless integrated network 6 2002
 
F5 NETWORKS, INC. (1)
8,379,515 TCP throughput control by imposing temporal delay 0 2007
 
INTEL CORPORATION (1)
7,733,770 Congestion control in a network 1 2005
 
NTT DOCOMO, INC. (1)
7,817,552 Communication control method and system 2 2004
 
RICOH COMPANY, LTD. (1)
7,487,202 Printer system, server, printing method, program and recording medium 0 2002
 
SHARP KABUSHIKI KAISHA (1)
7,428,595 System and method for streaming TCP messages in an enterprise network 5 2002
 
SYMANTEC CORPORATION (1)
7,821,937 Network protocol with damage loss resilient congestion control algorithm 4 2007
 
VARITEK INDUSTRIES, INC. (1)
7,215,648 Apparatus and method for efficient live webcasting and network connectivity 4 2001

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 25, 2015
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00