Method for measuring end-to-end delay in asynchronous packet transfer network, and asynchronous packet transmitter and receiver

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7835290
APP PUB NO 20070097865A1
SERIAL NO

11503592

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided are a method for measuring an end-to-end delay, and asynchronous packet transmitter/receiver, capable of conveniently and exactly measuring a packet delay in an asynchronous packet transfer network in which a transfer priority is determined as in MPLS. The method includes the steps of continuously transmitting a higher priority packet and a lower priority packet at an ingress node, measuring a time when the higher priority packet arrives at an egress node, measuring a time when the lower priority packet arrives at the egress node, and calculating a delay time from the arrival time of the higher and lower priority packets. The higher and lower priority packets each include Coupled Label and Sequence Number fields for discriminating one of the packets that are repeatedly transmitted, the Coupled Label field of the higher priority packet is recorded with a label value of the lower priority packet, and the Coupled Label field of the lower priority packet is recorded with a label value of the higher priority packet.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEDAEJEON6016

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lee, Soon Seok Daejeon, KR 37 144
Song, Jong Tae Daejeon, KR 3 15

Cited Art Landscape

Patent Info (Count) # Cites Year
 
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (1)
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XEROX CORPORATION (1)
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GLOBALFOUNDRIES INC. (1)
* 5852723 Method and apparatus for prioritizing traffic in half-duplex networks 64 1996
 
VERIZON LABORATORIES INC. (1)
6912216 Method and system for estimating performance metrics in a packet-switched communication network 9 2000
 
TEXAS INSTRUMENTS INCORPORATED (1)
* 6381214 Memory-efficient leaky bucket policer for traffic management of asynchronous transfer mode data communications 56 1998
 
FUJITSU LIMITED (1)
* 6331982 Connection control system and method in a switch 13 1996
 
DAEWOO ELECTRONICS CORPORATION (1)
* 6215791 Queue management system capable of controlling priority and jitter 32 1998
 
NORTEL NETWORKS LIMITED (1)
* 5450394 Delay monitoring of telecommunication networks 142 1994
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (3)
* 9602383 General packet radio service tunnel performance monitoring 0 2013
* 2014/0105,044 GENERAL PACKET RADIO SERVICE TUNNEL PERFORMANCE MONITORING 3 2013
9338678 Performance monitoring of control and provisioning of wireless access points (CAPWAP) control channels 0 2013
 
CIENA CORPORATION (2)
* 9608755 Network element clock synchronization systems and methods using optical transport network delay measurement 0 2011
* 2012/0213,508 NETWORK ELEMENT CLOCK SYNCHRONIZATION SYSTEMS AND METHODS USING OPTICAL TRANSPORT NETWORK DELAY MEASUREMENT 3 2011
 
FUJITSU LIMITED (1)
* 9118537 Reception apparatus, communication apparatus, transmission apparatus, receiving method, and transmitting method 0 2011
 
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD. (2)
* 2011/0019,685 METHOD AND SYSTEM FOR PACKET PREEMPTION FOR LOW LATENCY 1 2009
9455905 Encapsulation for link layer preemption 1 2014
* Cited By Examiner

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