Invention Grant
- Patent Title: Method and apparatus for decoding a repeated message
- Patent Title (中): 用于解码重复消息的方法和装置
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Application No.: US13297998Application Date: 2011-11-16
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Publication No.: US08693583B2Publication Date: 2014-04-08
- Inventor: Sajal Kumar Das , Miguel M. Lopez
- Applicant: Sajal Kumar Das , Miguel M. Lopez
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (Publ)
- Current Assignee Address: SE Stockholm
- Agency: Coats and Bennett, P.L.L.C.
- Priority: IN2628/DEL/2011 20110909
- Main IPC: H04L27/06
- IPC: H04L27/06

Abstract:
Techniques for decoding repeated messages sent from a transmitter are improved with information obtained from the decoding of the first transmission and by augmenting Chase combining techniques with a voting-based combining method. In an example method, first encoded bits corresponding to a first instance of the repeated message and demodulated to obtain first soft bits, which are decoded to obtain first decoded bits. Second encoded bits corresponding to a second instance of the repeated message are demodulated to obtain second soft bits. The first decoded bits are re-encoded to obtain re-encoded bits. Sign values for modified soft bits are determined from sign values for the first soft bits, the sign values for the second soft bits, and the sign values for the re-encoded bits. The modified soft bits are combined with the first soft bits and decoded.
Public/Granted literature
- US20130064331A1 METHOD AND APPARATUS FOR DECODING A REPEATED MESSAGE Public/Granted day:2013-03-14
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