Method for estimating time of arrival based on non-contiguous spectrums and apparatus

A communication apparatus, comprising:

• a communication interface, wherein the communication interface is configured to receive a plurality of signals from a transmit end on a plurality of frequency bands, wherein the plurality of frequency bands are in a one-to-one correspondence with the plurality of signals;
• and
• a processor configured to execute a group of programs or instructions that, when executed by the processor, cause the communication apparatus to:
• determine, based on the plurality of signals, channel frequency responses (CFRs) of the frequency bands corresponding to the plurality of signals;
• determine a CFR of a full bandwidth based on the CFRs of the frequency bands corresponding to the plurality of signals, wherein the full bandwidth comprises the plurality of frequency bands, and a frequency domain range of the full bandwidth is the same as a frequency domain range of the plurality of signals at the transmit end, wherein there is a gap frequency band between every two adjacent frequency bands in the plurality of frequency bands, values of the CFR of the full bandwidth on the plurality of frequency bands are values of the CFRs corresponding to the plurality of frequency bands, and a value of the CFR of the full bandwidth on the gap frequency band is zero;
• and
• determine a time of arrival estimate based on the CFR of the full bandwidth, wherein the time of arrival estimate is used to determine location information of a terminal device.

A non-transitory computer readable storage medium, storing computer instructions that, when executed by a network device, cause the network device to:

• receive a plurality of signals from a transmit end on a plurality of frequency bands, wherein the plurality of frequency bands are in a one-to-one correspondence with the plurality of signals;
• determine, based on the plurality of signals, channel frequency responses (CFRs) of the frequency bands corresponding to the plurality of signals;
• determine a CFR of a full bandwidth based on the CFRs of the frequency bands corresponding to the plurality of signals, wherein the full bandwidth comprises the plurality of frequency bands, and a frequency domain range of the full bandwidth is the same as a frequency domain range of the plurality of signals at the transmit end, wherein there is a gap frequency band between every two adjacent frequency bands in the plurality of frequency bands, values of the CFR of the full bandwidth on the plurality of frequency bands are values of the CFRs corresponding to the plurality of frequency bands, and a value of the CFR of the full bandwidth on the gap frequency band is zero;
• and
• determine a time of arrival estimate based on the CFR of the full bandwidth, wherein the time of arrival estimate is used to determine location information of a terminal device.