Patent ID: 8767671

Claim:
A Space Division Multiple Access (SDMA) transmission method based on a statistical characteristic pattern, comprising: a) configuring multiple receiving and transmitting antennae at a base station side into one or more antenna arrays, and dividing multiple space resources for each antenna array by way of multiple unitary matrixes; b) comparing, at the base station side, a diagonalization performance among the unitary matrixes for a correlation matrix of subscriber channels with a long-time statistical correlation matrix of the subscriber channels in order to determine the unitary matrix that matches the characteristic pattern of the long-time statistical correlation matrix, then calculating an optimal diagonalized correlation matrix so as to determine the space resource divisions for the subscribers and space directions occupied by the subscribers in the divisions, and then performing characteristic pattern clustering for the subscribers in a cell with the space resource divisions of the subscribers; c) grouping the subscribers that belong to a same characteristic pattern cluster into space division subscriber groups on the basis of the space directions occupied by each subscriber to create one or more space division subscriber groups that can share a same time-frequency resource by way of a SDMA technique, wherein different subscribers in each space division subscriber group occupy specific space directions different from the directions occupied by other subscribers in the group; d) carrying out SDMA transmission, by the subscribers in a same space division subscriber group, with their space resource divisions, wherein each subscriber performs SDMA transmission in a long-time statistical characteristic pattern, by way of one or more column vectors in the corresponding unitary matrix, and wherein the signals transmitted by each subscriber in the long-time statistical characteristic pattern comprises special pilot signals and data signals, and the data signals can be signals generated by short time pre-coding with a short-time channel information; e) dynamically performing, at the base station side, subscriber characteristic pattern clustering and space division subscriber grouping as described above, performed dynamically as the long-time statistical characteristics of the channels between the base station and a subscribers change with a movement of the subscribers to generate updated characteristic pattern clusters for the subscribers and updated space division subscriber groups, and to thereby carry out the SDMA transmission in the characteristic pattern described above.