Datang Mobile Communications Equipment Co., Ltd.

Boyang Hu

Shaohui Sun

Bin Ren

Gang Li

Ren Da

Zhenyu Zhang

Rongyi Fang

Shaoshuai Fan

Mengfan Zhou

Provided in the embodiments of the present disclosure are a carrier phase tracking method and device for an orthogonal frequency division multiplexing (OFDM) multi-carrier system. The method includes: performing frequency domain tracking on a received current OFDM symbol and determining a phase of each subcarrier; analyzing a phase curve of all subcarriers and determining an inter-symbol phase average offset, and the inter-symbol phase average offset is used to characterize an estimated value of a difference obtained by subtracting a second value from a first value, the first value is a carrier phase value of the current OFDM symbol, and the second value is an estimated value of a carrier phase of a previous OFDM symbol; and performing time domain tracking by using the inter-symbol phase average offset as an input phase and determining an estimated value of a carrier phase of the current OFDM symbol.

Carrier phase tracking method and device for orthogonal frequency division multiplexing multi-carrier system

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Beijing, China

Boyang Hu