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.:

US 7746852 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 29, 2010

Filed:

Feb. 25, 2005
Applicants:

Hitomi Teraoka, Yokohama, JP;

Naruhito Nakahara, Yokohama, JP;

Inventors:

Hitomi Teraoka, Yokohama, JP;

Naruhito Nakahara, Yokohama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

A communication system using PPP in which a plurality of layer 3 protocols are defined has a problem. PDSN cannot judge which of layer 3 protocols is equipped in a terminal, and NCP phase processes corresponding to all layer 3 protocols of the system are executed. This increases the number of PPP packets transmitted/received between the terminal and PDSN, which prolongs a connection time. In the invention, a new procedure of the NCP phase process is established in a communication system, by which the terminal firstly notifies a layer 3 protocol to PDSN and thereafter the NCP phase process is executed. PDSN waits for a notice of the layer 3 protocol from the terminal, selects the corresponding layer 3 protocol from the layer 3 protocols according to the notice, and executes the NCP phase.


Find Patent Forward Citations

Teraoka, Hitomi. (2010). Packet data serving node and communication method using the same (U.S. Patent No. 7746852). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7746852

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