APPARATUS AND METHODS FOR JOINTLY DECODING MESSAGES BASED ON APRIORI KNOWLEDGE OF MODIFIED CODEWORD TRANSMISSION
摘要
<p>A method and apparatus for jointly decoding a first and second message is disclosed. The signaling scenario illustrated by FIG. 1 and using the codeword properties defined herein, the various embodiments may combine multiple messages under the hypothesis that the value of a message portion corresponding any subsequent observed transmission is different. Accordingly a first buffer may store the first observed message frame (509) and a second buffer may sum the LLR's of subsequent observed frames (513). In the embodiments disclosed, two decoding hypotheses are required only; a first where the two buffers are combined directly (513) and a second where the difference codeword bit LLR's of the first buffer (509) are inverted before combining with those of the second buffer (519). A maximum of N transmissions is allowed by the receiver (523), after which a decoding failure is declared.</p>
申请公布号
WO2007087512(A2)
申请公布日期
2007.08.02
申请号
WO2007US60868
申请日期
2007.01.22
申请人
MOTOROLA INC.;STEWART, KENNETH, A.;BUCKLEY, MICHAEL, E.;PEYRUSSE, OLIVIER;SMOLINSKE, JEFFREY, C.
发明人
STEWART, KENNETH, A.;BUCKLEY, MICHAEL, E.;PEYRUSSE, OLIVIER;SMOLINSKE, JEFFREY, C.