Data transmission method, sending device, and receiving device
AssigneeHuawei Technologies Co., Ltd.
InventorJianqin Liu
Life of this patent
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Abstract
Embodiments of the present invention relate to the communications field, and provide a data transmission method, a sending device, and a receiving device. Transmission requirements of different subbands can be maximally satisfied, and a system throughput can be improved. The method includes: determining, by a sending device, rank indicators of J (an integer greater than or equal to 1) subbands corresponding to a to-be-transmitted channel, where the rank indicators of the J subbands are not totally the same; determining, by the sending device based on a rank indicator of each of the J subbands, a transmission block size.
Claims20
A method of data transmission, comprising:
- determining, by a sending device, rank indicators of J subbands corresponding to a to-be-transmitted channel, wherein at least one of the rank indicators of the J subbands is different than at least another of the rank indicators of the J subbands, and J is an integer greater than or equal to 2;
- determining, by the sending device based on a rank indicator of each of the J subbands, a transmission block size and a quantity of transmission layers that corresponds to the subband, wherein the transmission block size is a transmission block size corresponding to the J subbands or a transmission block size corresponding to each of the J subbands;
- mapping, by the sending device based on the rank indicator of each of the J subbands, a transmission block corresponding to the subband to a transmission layer corresponding to the subband;
- and
- mapping, by the sending device, data carried on the transmission layer corresponding to the subband to a time-frequency resource for transmission.
A sending device, comprising:
- a processor, configured to:
- determine rank indicators of J subbands corresponding to a to-be-transmitted channel, wherein at least one of the rank indicators of the J subbands is different than at least another of the rank indicators of the J subbands, and J is an integer greater than or equal to 2;
- determine, based on a rank indicator of each of the J subbands, a transmission block size and a quantity of transmission layers that corresponds to the subband, wherein the transmission block size is a transmission block size corresponding to the J subbands or a transmission block size corresponding to each of the J subbands;
- and
- map, based on the rank indicator of each of the J subbands, a transmission block corresponding to the subband to a transmission layer corresponding to the subband;
- and
- a transmitter, configured to map data carried on the transmission layer corresponding to the subband to a time-frequency resource for transmission.
Dependencies are inferred from the claim text.