| 摘要 |
A method of performing a multicast broadcast service (MBS) transmission in a multiple-input-multiple-output (MIMO) communication comprising: a. transmitting first data over a first MIMO layer, the first data being lower quality data; and b transmitting second data over a second MIMO layer, the second data being enhancement data for enhancing the lower quality data; wherein, the MBS transmission is to be defined at a subscriber station by the result of enhancing the lower quality data with the enhancement data if the first and second data is successfully received, and the MBS transmission is to be defined at the subscriber station by the lower quality data alone if the first data is successfully received and the second data is not.
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