| 摘要 |
Embodiments of the present invention provide a data transmission method, a base station, and a user equipment. The data transmission method includes: determining, by a base station, a modulation and coding level and a time-frequency resource, and determining, in a first or second modulation and transport block size index table, a TBS index and a modulation mode, where a second TBS index is not smaller than a first TBS index; and sending service data and a system scheduling control signal to a user equipment by adopting the selected TBS. In this way, the base station can select a larger TBS to achieve a higher coding rate and increase a system throughput. |
| 主权项 |
1. A data transmission method, comprising:
determining, by a base station, a modulation and coding level; determining, by the base station, in a first modulation and transport block size (TBS) index table, a first TBS index and a first modulation mode that correspond to the modulation and coding level, or determining, by the base station, in a second modulation and TBS index table, a second TBS index and a second modulation mode that correspond to the modulation and coding level, wherein the second TBS index is larger than or equal to the first TBS index; determining, by the base station, a time-frequency resource, and determining, according to the time-frequency resource, a quantity of physical resource block pairs; selecting, by the base station in a TBS table, a TBS corresponding to one of (a) the quantity of physical resource pairs and (b) the determined first TBS index or the determined second TBS index; sending, by the base station, service data to a user equipment by adopting the selected TBS; and sending, by the base station, a system scheduling control signal to the user equipment, wherein the system scheduling control signal comprises the modulation and coding level and the time-frequency resource. |
