Patent ID: 9178825
Filing Date: 2015-11-03
Classification: H04L

Abstract:
1. A data processing method, comprising: receiving, by a receiver, a first data flow, wherein the first data flow is a 1× symbol rate data flow obtained after a 2× symbol rate quadrature phase shift keying (QPSK) modulation signal undergoes frame synchronization adjustment, balancing, data extraction, and constellation position determining; performing interpolation, by the receiver, into the first data flow to obtain a second data flow; receiving, by the receiver, a third data flow, wherein the third data flow is a 2× symbol rate data flow obtained after the 2× symbol rate QPSK modulation signal undergoes frame synchronization adjustment and balancing; calculating, by the receiver, a data flow signal quality difference between the third data flow and the second data flow; obtaining, by the receiver, a digital pre-distortion (DPD) non-linear distortion compensation coefficient according to the data flow signal quality difference and the third data flow or the second data flow.