Huawei Technologies Co., Limited

Li Xian

Tingzhao Li

Xingwen Li

Dongming Yin

Lihong Jiang

Xianglin Peng

Embodiments of the present application provide an I/Q signal transmission method and an apparatus. The method includes: calculating, by a sending end, a first amplitude value and a first phase value of a first I/Q signal; obtaining, by the sending end, an amplitude quantization level of the first amplitude value and a phase quantization level of the first phase value, and the phase quantization level is used to indicate a phase value transmitted per unit of bit width; quantizing, by the sending end, the first amplitude value according to the amplitude quantization level, to obtain a second amplitude value after the quantization, and quantizing the first phase value according to the phase quantization level, to obtain a second phase value after the quantization; and transmitting, by the sending end, the second amplitude value, the second phase value, the amplitude quantization level, and the phase quantization level to a receiving end.

I/Q signal transmission method and system, and apparatus

Embodiments of the present invention provide a device and method for communication correction. The device includes a receiving channel and a correction channel, where the receiving channel includes an analog radio-frequency front end, a demodulator, a first analog-to-digital converter, and a first channel correction module that are connected sequentially, and the correction channel includes a frequency converter, a second analog-to-digital converter, and a digital processor that are connected sequentially, where the analog radio-frequency front end is further connected to the frequency converter, and the digital processor is connected to the first channel correction module. With the technical solutions of the present invention, channel correction is performed on the receiving channel by the correction channel, so as to improve the precision of receiving a radio signal.

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Chengdu, China

Li Xian