EP-4742769-A1 - FREQUENCY ERROR MEASUREMENT METHOD AND APPARATUS, DEVICE, MEDIUM, AND PROGRAM PRODUCT

Abstract

The present application relates to the field of zero power consumption, and discloses a frequency error measurement method and apparatus, a device, a medium, and a program product. The method is executed by a first device. The method comprises: transmitting a first signal, the first signal being used for a second device to measure a frequency error of the first device, and the first device being a zero-power-consumption device. According to the method, the first signal for the second device to measure the frequency error of the zero-power-consumption device is transmitted, so that the frequency error between an actual transmission frequency of the first signal and an expected transmission frequency is measured, and the frequency error can be used for helping to adjust the zero-power-consumption device, thereby ensuring the accuracy of the frequency of the zero-power-consumption device.

Inventors

• XU, WEIJIE

Assignees

• GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Dates

Publication Date

20260513

Application Date

20230707

Claims (20)

1. A method for measuring frequency errors, performed by a first device, the method comprising: transmitting a first signal, wherein the first signal is used for a second device to measure a frequency error of the first device; wherein the first device is a zero-power device.
2. The method according to claim 1, further comprising: receiving frequency error information, wherein the frequency error information is used to indicate the frequency error.
3. The method according to claim 2, further comprising: adjusting a frequency of an oscillator of the zero-power device based on the frequency error information.
4. The method according to any one of claims 1 to 3, wherein the first signal is transmitted over a first channel determined by the first device; and the frequency error is a difference between a first frequency and a second frequency; wherein the first frequency is determined based on an actual transmit frequency of the first signal or an actual transmit frequency range of the first signal, and the second frequency is determined based on a reference point frequency or a channel frequency range of the first channel.
5. The method according to claim 4, wherein the first channel is specified in a communication protocol or configured by a network device; or the first channel is a channel in a first channel set, wherein the first channel set is specified in a communication protocol or configured by a network device.
6. The method according to claim 5, wherein the first channel is selected from channels other than two edge channels in the first channel set.
7. The method according to claim 5, wherein the first channel is randomly selected from the first channel set.
8. The method according to claim 6 or 7, further comprising: transmitting a channel number of the first channel.
9. The method according to any one of claims 1 to 8, wherein the first signal is transmitted at an instant of detecting an idle channel; or the first signal is transmitted within a periodic time window; or the first signal is transmitted in response to receiving first signaling.
10. The method according to claim 9, wherein a parameter of the periodic time window is specified in a communication protocol or configured by a network device; or a parameter of the periodic time window is associated with a first channel; wherein the parameter of the periodic time window comprises at least one of a period, a duration, or a start position of the period.
11. The method according to claim 9, wherein the first signaling is used to indicate a time window for the first device to transmit the first signal.
12. The method according to any one of claims 1 to 11, wherein the first signal is transmitted prior to transmission of an association request; or the first signal is transmitted prior to transmission of a random access preamble.
13. The method according to any one of claims 2 to 11, wherein the first signal is transmitted together with an association request, wherein the frequency error information is carried in an association response; or the first signal is transmitted together with a random access preamble, wherein the frequency error information is carried in a random access response.
14. The method according to any one of claims 1 to 11, wherein the first signal is transmitted prior to transmission of a probe request; or the first signal is transmitted together with a probe request; or the first signal is transmitted prior to transmission of uplink data; or the first signal is transmitted prior to reception of downlink data.
15. The method according to claim 2, wherein the frequency error information is received over a first channel; or the frequency error information is received at a same frequency as the first signal.
16. The method according to claim 15, wherein an actual transmit frequency of the frequency error information is offset from a second frequency, wherein the second frequency is determined based on a reference point frequency or channel frequency range of the first channel.
17. The method according to claim 2, wherein the frequency error information is received over a second channel, wherein the second channel is specified in a communication protocol or configured by a network device.
18. The method according to any one of claims 1 to 17, wherein a transmission bit rate of the frequency error information is less than a threshold.
19. The method according to any one of claims 1 to 18, wherein transmitting the first signal comprises: transmitting the first signal to the second device; wherein the second device a device in a wireless fidelity (Wi-Fi) system or a device in a cellular communication system.
20. A method for measuring frequency errors, performed by a second device, the method comprising: receiving a first signal, wherein the first signal is used for the second device to measure a frequency error of a first device; wherein the first device is a zero-power device.

Description

TECHNICAL FIELD Embodiments of the present disclosure relate to the zero-power field, and particularly relate to a method and apparatus for measuring frequency errors, and a device, a medium and a program product thereof. RELATED ART With the continuous evolvement of wireless communication technologies, the Internet of things (IoT) technology is applied to all aspects of production and life such as smart homes, smart cities, smart factories, remote monitoring, and intelligent transportation. Due to the requirements on the power consumption, size, and the like of IoT in different scenarios, a zero-power IoT, which has ultra-low power consumption and an ultra-small size and is battery-free, has emerged. SUMMARY The present disclosure provides a method and apparatus for measuring frequency errors, and a device, a medium and a program product thereof. The technical solutions at least include the following contents. According to an aspect of the embodiments of the present disclosure, a method for measuring frequency errors is provided. The method is performed by a first device, and the method includes: transmitting a first signal, wherein the first signal is used for a second device to measure a frequency error of the first device; wherein the first device is a zero-power device. According to another aspect of the embodiments of the present disclosure, a method for measuring frequency errors is provided. The method is performed by a second device, and the method includes: receiving a first signal, wherein the first signal is used for the second device to measure a frequency error of a first device; wherein the first device is a zero-power device. According to another aspect of the embodiments of the present disclosure, an apparatus for measuring frequency errors is provided. The apparatus includes: a transmitting module, configured to transmit a first signal, wherein the first signal is used for a second device to measure a frequency error of the first device; wherein the first device is a zero-power device. According to another aspect of the embodiments of the present disclosure, an apparatus for measuring frequency errors is provided. The apparatus includes: a receiving module, configured to receive a first signal, wherein the first signal is used for a second device to measure a frequency error of a first device; wherein the first device is a zero-power device. According to another aspect of the embodiments of the present disclosure, a first device is provided. The first device includes: a processor; a transceiver communicably connected to the processor; and a memory configured to store at least one instruction executable by the processor; wherein the processor is configured to load and run the at least one instruction to perform the methods for measuring frequency errors as described above. According to another aspect of the embodiments of the present disclosure, a second device is provided. The second device includes: a processor; a transceiver communicably connected to the processor; and a memory configured to store at least one instruction executable by the processor; wherein the processor is configured to load and run the at least one instruction to perform the methods for measuring frequency errors as described above. According to another aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided. The computer-readable storage medium stores at least one program, wherein the at least one program is loaded and run by a processor to perform the methods for measuring frequency errors as described above. According to another aspect of the embodiments of the present disclosure, a computer program product or a computer program is provided. The computer program product or computer program includes at least one computer instruction stored in a computer-readable storage medium, wherein the at least one computer instruction, when loaded and run by a processor, causes the processor to perform the methods for measuring frequency errors as described above. The technical solutions according to the embodiments of the present disclosure at least have the following beneficial effects. By transmitting the first signal used for the second device to measure the frequency error of a zero-power device, a difference between an actual transmit frequency and an expected transmission of the first signal is measured and taken as the frequency error. The frequency error is used for adjusting the zero-power device, thereby ensuring the frequency accuracy of the zero-power device. BRIEF DESCRIPTION OF DRAWINGS For clearer descriptions of the technical solutions according to the embodiments of the present disclosure, the accompanying drawings required for describing the embodiments are briefly introduced hereinafter. Apparently, the accompanying drawings in the following description illustrate merely some embodiments of the present disclosure, and those of ordinary skill in the art may still de