Sequential multi-antenna selectable transmitting method for code division multi-path channel
A transmission method and antenna selection technology, which are applied in the field of sequential multi-antenna selection transmission and transmission preprocessing of code division multipath channels, and can solve the problem that it is difficult to calculate the closed-form solution of channel capacity. Practicality, the effect of reducing complexity
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[0028] The present invention is applicable to TD-HSPA + When the system is redundant due to the large number of transmitting antennas, antenna selection is needed to reduce the use of antenna ports and thus reduce the computational complexity. In the actual system, both LTE and TD-HSPA+ are currently aimed at dual streams. The reason for sending at most dual data streams is that under the existing system configuration and considering the limitations of actual channels, it is possible to send at most 2 streams. Realized, no matter how many data streams are demanding on the actual channel conditions, there is not much realization value under the trade-off.
[0029] For the dual-stream data parallel spread-spectrum transmission system, the wireless multipath fading channel coefficients are comprehensively considered when calculating the equivalent channel correlation matrix at the sending end of the system; according to the correlation matrix calculation method proposed by the pr...
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