Data Transmission Method Using Fractional Physical Resource Blocks, and Device Therefor
AssigneeHuawei Technologies Co., Ltd.
InventorsYi Zhang, Zhenfei Tang
Life of this patent
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Abstract
Embodiments of the present invention relate to the field of communications technologies. The method includes: determining, according to a fractional physical resource block (F-PRB) resource index allocated to UE and according to a quantity of F-PRBs included in each physical resource block PRB pair, an antenna port used to send data to the UE; sending downlink control information (DCI) to the UE, where a transmission format of the DCI is DCI 1A, and carries the F-PRB resource index that is allocated to the UE; and sending the data to the UE by using the antenna port.
Claims14
A data transmission method, comprising:
- determining, by a base station according to a quantity of fractional physical resource blocks (F-PRBs) comprised in a physical resource block (PRB) pair, and according to an F-PRB resource index allocated to a user equipment, an antenna port to use to send data to the user equipment;
- sending, by the base station, downlink control information (DCI) to the user equipment, wherein a transmission format of the DCI is DCI 1A, and the DCI carries the F-PRB resource index allocated to the user equipment;
- and
- sending, by the base station, the data to the user equipment using the antenna port.
A data transmission method, comprising:
- receiving, by a user equipment, downlink control information (DCI) from a base station, wherein a transmission format of the DCI is DCI 1A, and the DCI carries a fractional physical resource block (F-PRB) resource index allocated to the user equipment;
- determining, by the user equipment according to the F-PRB resource index allocated to the user equipment and a quantity of F-PRBs comprised in a PRB pair, an antenna port to be used by the base station to send data to the user equipment;
- and
- receiving, by the user equipment, data from the base station using the antenna port.
An apparatus, comprising:
- a processor;
- and
- a non-transitory memory storing a program to be executed by the processor, the program including instructions for:
- determining, according to a quantity of fractional physical resource blocks (F-PRBs) comprised in a physical resource block (PRB) pair, and according to a F-PRB resource index allocated to user equipment, an antenna port to use to send data to the user equipment;
- and
- sending downlink control information (DCI) to the user equipment, wherein a transmission format of the DCI is DCI 1A, and the DCI carries the F-PRB resource index allocated to the user equipment, and receiving the DCI causes the user equipment to determine the antenna port according to the F-PRB resource index allocated to the user equipment and according to the quantity of the F-PRBs comprised in the PRB pair;
- and
- sending the data to the user equipment using the antenna port.
An apparatus, comprising:
- a processor;
- and
- a non-transitory memory storing a program to be executed by the processor, the program including instructions for:
- receiving downlink control information (DCI) from a base station, wherein a transmission format of the DCI is DCI 1A, and the DCI carries a fractional physical resource block (F-PRB) resource index allocated to user equipment;
- and
- determining, according to the F-PRB resource index allocated to the user equipment, and according to a quantity of F-PRBs comprised in a PRB pair, an antenna port to be used to receive data from the base station;
- and
- receiving data from the base station using the antenna port.
Dependencies are inferred from the claim text.