| 摘要 |
<p>An encoder and method for efficient synchronization channel encoding in UTRA TDD mode by: producing a codeword a, where a=dG+z modulo-2, where d represents a predetermined code group to be encoded, G represents a predetermined generator matrix, and z represents a function of the code group number and a row of the generator matrix; producing values s<SUB>k</SUB>=2a<SUB>2k+1</SUB>+a<SUB>k</SUB>;k=0, 1, 2, 3, and associated values b<SUB>0</SUB>,b<SUB>1</SUB>,b<SUB>2</SUB>; and producing a value S<SUB>ssc </SUB>associated with the code group, where S<SUB>ssc</SUB>=(b<SUB>0</SUB>c<SUB>pi(0)</SUB>,b<SUB>1</SUB>c<SUB>pi(1)</SUB>,b<SUB>2</SUB>c<SUB>pi(2)</SUB>), c<SUB>pi</SUB> represents a code within the code group, and b<SUB>0</SUB>,b<SUB>1</SUB>,b<SUB>2</SUB>epsilon(±1,±j). This provides an efficient encoding architecture for the synchronization channel in UTRA TDD mode; and, in addition, by simple manipulation of the generation matrix, a higher chip rate signal may be signalled while still preserving the signalling information for the lower chip rate.</p> |
