The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2004
Filed:
May. 18, 2000
Carl F. Cao, Nepean, CA;
Richard A. Houle, Nepean, CA;
Dabin Wang, Nepean, CA;
Fozia A. Zaidi, Ottawa, CA;
Don W. Bennett, Ottawa, CA;
Yajun Liu, Nepean, CA;
Biswajit B. Nandy, Kanata, CA;
Nabil N. Seddigh, North Gower, CA;
Nausheen Naz, Ottawa, CA;
Satheesa Nadaragh, Scarborough, CA;
Nortel Networks Limited, St. Laurent, CA;
Abstract
Systems and methods applicable in the context of the TCP/IP suite of protocols explicitly are provided which allow for separate and preferential treatment of L -L control packets compared to the treatment of L data packets. This provides a performance gain at the cost of providing such preferential treatment for high error and long delay channels such as wireless links. Advantageously, channel utilization may be increased, for example by 5-50% depending on link conditions, on high error and long delay transmission links. More generally the invention distinguishes between control packets such as transport layer (for example, TCP, OSI Layer or L ) and application layer (for example, OSI Layer ) control packets and data packets, and transmits the control packets with higher reliability and lower delays. The benefit may be significant for IP applications where data objects transferred are small and are bursty, e.g., Web browsing and e-mail access.