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:
Dec. 28, 2004
Filed:
Jan. 15, 1999
Chiung-Shien Wu, Hsinchu, TW;
Industrial Technology Research Institute, Chutung Hsinchu, TW;
Abstract
A medium access control (MAC) protocol for controlling data communication in a multi-channel communication system (e.g., a wideband code division multiple access system). The protocol provides a procedure for transmitting, via a plurality of data links and control links, data packets between a first station (e.g., a base station) and one or more second stations (e.g., mobile stations). The protocol includes initial transmission of one or more data request packets each having a preamble code and a cyclic redundant code from the second stations to the first station, subsequent transmission of one or more channel assignment commands from the first station to one or more of the second stations based on the data request packets processed by the first station, and final transmission of one or more data packets from the one or more of the second stations to the first station based on the channel assignment commands. The data and request packets, which are respectively transmitted over a forward control link and a plurality of reverse control links, are respectively encoded by a predetermined number of scrambling codes.