| 摘要 |
A method in a wireless communication network infrastructure entity (200), including transmitting a plurality of symbols in a sequence, some of the symbols associated with a first transmission mode, for example, point-to-point, and some other symbols associated with a second transmission mode, for example, point-to-multipoint, different than the first transmission mode. And formatting the symbols associated with the first transmission mode with a first cyclic prefix and formatting the symbols associated with the second transmission mode with a second prefix, before transmitting the symbols. In one embodiment, the cyclic prefixes have different durations.
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