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. 18, 2007
Filed:
May. 13, 2003
Robert Harold Sparr, Menlo Park, CA (US);
Ali Dolatshahi Pirooz, Fremont, CA (US);
Robert Harold Sparr, Menlo Park, CA (US);
Ali Dolatshahi Pirooz, Fremont, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
The present invention is directed towards a look-up table implementation of a WCDMA frame synchronization and a cell group ID detection (both of which are comprised within a 'secondary search' process). The secondary search process receives a signal (which is formatted as slots within a frame) and determines ('decides') information encoded in the received signal according to the slots of the received signal. The determined information is used to produce a sequence of values. A sequence of values (which have been determined from successive slots) is used to produce an index into a table that stores secondary search results. The secondary search codes are arranged such that a minimum sequence of values can be used to determine frame synchronization and group identification. The table is configured to return information that is sufficient for determining frame synchronization and the group ID of the received signal.