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:
Jul. 26, 2011
Filed:
Jan. 13, 2006
Suman Das, Colonia, NJ (US);
Shirish Nagaraj, Cedar Knolls, NJ (US);
Subramanian Vasudevan, Morristown, NJ (US);
Harish Viswanathan, Morristown, NJ (US);
Suman Das, Colonia, NJ (US);
Shirish Nagaraj, Cedar Knolls, NJ (US);
Subramanian Vasudevan, Morristown, NJ (US);
Harish Viswanathan, Morristown, NJ (US);
Alcatel-Lucent USA Inc., Murray Hill, NJ (US);
Abstract
A signaling method is provided that can improve the efficiency of forward-link control signaling in OFDM systems. The method involves using a set of forward-link subcarriers that are dedicated for control information, and are shared by a set of two or more users. The control information destined for each user is spread using a respective spreading code, thereby to provide a spread control message. The spread control messages destined for the various users are summed together prior to transmission.