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:
Sep. 30, 2014
Filed:
Apr. 06, 2011
Shi Cheng, Sunnyvale, CA (US);
Ravi Narasimhan, Los Altos, CA (US);
Shi Cheng, Sunnyvale, CA (US);
Ravi Narasimhan, Los Altos, CA (US);
Applied Micro Circuits Corporation, Sunnyvale, CA (US);
Abstract
A system and method are provided for Single Carrier-Frequency-Division Multiple Access (SC-FDMA) Physical Uplink Control Channel (PUCCH) format 2/2a/2b detection. A receiver accepts a plurality of multicarrier signals transmitted simultaneously from a plurality of transmitters, with overlapping carrier frequencies. For each multicarrier signal, a single tap measurement of time delay is performed using a Direction of Arrival (DoA) technique. After performing a back-end processing operation, PUCCH 2/2a/2b format signals are detected. The back-end processing operation is selected from one of the following options: (1) decorrelation, channel estimation, equalization per user, and decoding per user; (2) channel estimation, equalization, and decoding per user; (3) decorrelation plus maximum likelihood detection (ML) per user; and, (4) ML detection over all users. Selection criteria is also provided.