| 摘要 |
<p>An encoder and method for efficient synchronisation 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 Sk=2a2k+1+ak;k=0,1,2,3, and associated values b0,b1,b2; and producing a value SSSC associated with the code group, where SSSC=(b0c¿π(0),b1cπ(1),b2cπ(2)), cπ represents a code within the code group, and b¿0?,b1,b2 ε(±1,±j). This provides an efficient encoding architecture for the synchronisation channel in UTRA TDD mode; and, in addition, by simple manipulation of the generation matrix, a higher chip rate signal may be signalled whilst still preserving the signalling information for the lower chip rate.</p> |
