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:
Jan. 27, 2015
Filed:
Apr. 25, 2011
Fanping Du, Shenzhen, CN;
Fanping Du, Shenzhen, CN;
ZTE Corporation, Shenzhen, Guangdong Province, CN;
Abstract
The disclosure provides a channel decoding method and a tail biting convolutional decoder. The method comprises: the tail biting convolutional decoder performs add-compare-select processing on metric values of 2states according to input data to be decoded and N zeros input after the data to obtain final cumulative metric values of the 2states, and stores selection result of add-compare-select processing, wherein N is the constraint length of tail biting convolutional coding; the tail biting convolutional decoder starts to backtrack from one state of the 2states according to the selection result to obtain intermediate decoding result after the add-compare-select processing is finished; the tail biting convolutional decoder outputs the bits except the last N bits of the intermediate decoding result as decoded result of the data to be decoded. The tail biting convolutional decoder comprises an add-compare-select module, a backtracking module and an outputting module.