| 摘要 |
An apparatus and method for Orthogonal Cover Code (OCC) generation, and OCC mapping, includes generating the first group of OCC sequences, which is used to generate the first group of OCC sequences; generating the second group of OCC sequences, which is used to mirror the columns of the first group of OCC sequences to generate the second group of OCC sequences; generating the third group of OCC sequences, which is used to perform cyclic shift on the column vectors of the first group of OCC sequences to generate the third group of OCC sequences; and generating the fourth group of OCC sequences, which is used to mirror the columns of the third group of OCC sequences to generate the fourth group of OCC sequences. |
| 主权项 |
1. An orthogonal cover code generation apparatus, comprising
a processor configured to:
generate a first group of orthogonal cover code sequences C1 represented by a matrix of [Cn,1(1), Cn,1(2), . . . Cn,1(M)], which satisfy that any adjacent truncated sub cover code sequences [C2j-1,1(2m−1), C2j-1,1(2m)] and [C2j,1(2m−1), C2j,1(2m)] are also mutually orthogonal, wherein n is an index of N orthogonal cover code sequences included in the first group of orthogonal cover code sequences, M is a spreading factor of the orthogonal cover code sequence as a spreading sequence, N≦M, j is an integer satisfying 1≦j≦N/2, and m is an integer satisfying 1≦m≦M/2; perform column mirroring on the first group of orthogonal cover code sequences, so as to generate a second group of orthogonal cover code sequences C2; perform cyclic shift processing of column vectors on the first group of orthogonal cover code sequences, so as to generate a third group of orthogonal cover code sequences C3; column mirroring on the third group of orthogonal cover code sequences, so as to generate a fourth group of orthogonal cover code sequences C4; and a transmitter configured to:
transmit each of the first group, second group, third group, and fourth group of orthogonal cover code sequences. |
