Patent ID: 11876662
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A signal demodulation method, comprising:
receiving, by a terminal device, a first tracking reference signal from a first transmission reception apparatus of a single frequency network cell;
receiving, by the terminal device, a second tracking reference signal from a second transmission reception apparatus of the single frequency network cell, wherein the first tracking reference signal and the second tracking reference signal occupy different time-frequency resources;
receiving, by the terminal device, indication information from the first transmission reception apparatus or the second transmission reception apparatus, wherein the indication information indicates one or more tracking reference signals for receiving a downlink signal, the one or more tracking reference signals for receiving the downlink signal are at least one of the first tracking reference signal and the second tracking reference signal, and the downlink signal comprises a demodulation reference signal and downlink data;
determining, by the terminal device based on the one or more tracking reference signals for receiving the downlink signal, a first carrier frequency on which the downlink signal is to be received;
receiving, by the terminal device, the demodulation reference signal and the downlink data based on the first carrier frequency; and
demodulating, by the terminal device, the downlink data based on the demodulation signal.