Patent ID: 9706510
Date: 2017-07-11
CPC Classifications: H04J,H04W

Claim:
1. A base station, comprising: a base station indoor apparatus; and a base station outdoor apparatus communicably coupled to the base station indoor apparatus via at least a single data line; wherein the base station outdoor apparatus is configured to receive a reference clock source signal from a satellite signal processing module which is configured to perform decoding processing on a satellite radio frequency signal received by a satellite antenna, and to perform demodulation processing on a ground service signal received by a ground service antenna to obtain a demodulated signal; wherein the base station outdoor apparatus is further configured to perform phase discrimination processing on a current system clock signal and the reference clock source signal to obtain a phase difference, to generate a data packet carrying the phase difference, and to send the data packet carrying both the phase difference obtained from the satellite radio frequency signal and the demodulated signal obtained from the ground service signal over the single data line to the base station indoor apparatus; and wherein the base station indoor apparatus is configured to receive the data packet and the demodulated signal, to obtain the carried phase difference from the data packet, and to perform phase-locked tracking according to the phase difference, so as to obtain a calibrated system clock signal.