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US 10,897,338 B2Granted
Data transmission method, channel estimation method, and apparatus
AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.
InventorHai Tang
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Abstract
Embodiments of the present invention provide a data transmission method, a channel estimation method, and a device. The data transmission method comprises: sending, by a first device, an uplink pilot signal to a second device through antenna ports in a first antenna port set; and sending, by the first device, preprocessed uplink control information on which a preprocess is performed to the second device through at least some antenna ports in the first antenna port set.
Claims18
A data transmission method, comprising:
- obtaining an uplink pilot signal and uplink control information;
- determining a bandwidth of the uplink pilot signal and a bandwidth of the uplink control information,
- preprocessing, by a first device, the uplink control information, wherein the bandwidth of the preprocessed uplink control information is equal to the bandwidth of the uplink pilot signal;
- sending the uplink pilot signal and the preprocessed uplink control information to a second device;
- wherein the uplink pilot signal is a signal on which the preprocess is not performed, and the uplink pilot signal is configured for uplink channel estimation and demodulation of the uplink control information;
- wherein preprocessing, by a first device, the uplink control information comprises:
- performing, by the first device, Discrete Fourier Transform (DFT) on the uplink control information.
4 more elements
A data transmission method, comprising:
- receiving, by a second device, an uplink pilot signal and preprocessed uplink control information that is sent by a first device, wherein a bandwidth of the preprocessed uplink control information is equal to a bandwidth of the uplink pilot signal, and the uplink pilot signal is a signal on which the preprocess is not performed, and the preprocess is Discrete Fourier Transform (DFT);
- performing, by the second device, channel estimation according to the uplink pilot signal to obtain uplink channel information;
- and
- demodulating, by the second device, the preprocessed uplink control information according to the uplink channel information.
1 more element
A data transmission device, comprising:
- a memory storing program instructions;
- and
- a processor;
- wherein when the program instructions are executed by the processor, the apparatus is configured to:
- obtain an uplink pilot signal and uplink control information;
- determine a bandwidth of the uplink pilot signal and a bandwidth of the uplink control information;
- preprocessing the uplink control information, wherein the bandwidth of the preprocessed uplink control information is equal to the bandwidth of the uplink pilot signal;
- send the uplink pilot signal and the preprocessed uplink control information to a second device;
- wherein the uplink pilot signal is a signal on which the preprocess is not performed, and the uplink pilot signal is configured for uplink channel estimation and demodulation of the uplink control information;
- wherein preprocessing the uplink control information comprises:
- performing, by the first device, Discrete Fourier Transform (DFT) on the uplink control information.
8 more elements
Dependencies are inferred from the claim text.