Abstract
An apparatus and method for Orthogonal Cover Code(OCC) generation and an apparatus and method for OCC mapping are disclosed in the present invention wherein the apparatus for OCC generation includes: a means for generating the first group of OCC sequences which is used to generate the first group of OCC sequences; a means for 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; a means for 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 a means for 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. According to the above-mentioned technical solution of the present invention the randomization of the pilot sequence is improved the problem of data transmission power imbalance is solved the orthogonality requirements in both time dimension and frequency dimension are satisfied and more robust channel estimation performance is provided.
An apparatus and method for Orthogonal Cover Code(OCC) generation and an apparatus and method for OCC mapping are disclosed in the present invention wherein the apparatus for OCC generation includes: a means for generating the first group of OCC sequences which is used to generate the first group of OCC sequences; a means for 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; a means for 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 a means for 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. According to the above-mentioned technical solution of the present invention the randomization of the pilot sequence is improved the problem of data transmission power imbalance is solved the orthogonality requirements in both time dimension and frequency dimension are satisfied and more robust channel estimation performance is provided.
The invention claims a generating device and method for orthogonal cover code and orthogonal cover code mapping method and device wherein the orthogonal mask generation device comprising: a first set of orthogonal sequence generating device for generating a first group of orthogonal cover code sequences; second group of orthogonal sequence generating device which is used for the first group of orthogonal cover code sequences for array image processing to generate a second group of orthogonal cover code sequences a third group orthogonal sequence generating device for the first group of orthogonal cover code sequences to array vector cyclic shift processing. to generate a third group of orthogonal cover code sequence and a fourth group orthogonal sequence generating device for a third group of orthogonal cover code sequences to array image processing to generate a fourth group of orthogonal cover code sequences. according to the technical solution of the invention can increase the pilot sequence of randomization that transmission data power is not balanced and the time-frequency two-dimensional orthogonality requirement providing a more robust channel estimation performance.
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