EP-4742783-A1 - POSITIONING METHOD AND APPARATUS, AND DEVICE, STORAGE MEDIUM AND CHIP

EP4742783A1EP 4742783 A1EP4742783 A1EP 4742783A1EP-4742783-A1

Abstract

Provided is a position method and a positioning apparatus, relating to the technical field of communications. The method is performed by a positioning device. The method includes: positioning (601, 802) a zero-power tag device based on a first radio signal from the zero-power tag device; wherein the first radio signal is actively transmitted by the zero-power tag device in response to the zero-power tag device receiving a second radio signal, or the first radio signal is passively transmitted via backscatter modulation on the second radio signal; wherein the second radio signal is used to energize the zero-power tag device or wake up the zero-power tag device.

Inventors

HU, Rongyi

Assignees

GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

Dates

Publication Date: 20260513
Application Date: 20230703

Claims (20)

A positioning method, performed by a positioning device, the method comprising: positioning a zero-power tag device based on a first radio signal from the zero-power tag device; wherein the first radio signal is actively transmitted by the zero-power tag device in response to the zero-power tag device receiving a second radio signal, or the first radio signal is passively transmitted via backscatter modulation on the second radio signal; wherein the second radio signal is used to energize the zero-power tag device or wake up the zero-power tag device.
The method according to claim 1, wherein the second radio signal is further used to trigger the zero-power tag device to transmit the first radio signal; or the first radio signal is transmitted in a case where the zero-power tag device receives a third radio signal for triggering transmission of the first radio signal, and receives energy from the second radio signal and/or backscatters the second radio signal.
The method according to claim 1 or 2, wherein the second radio signal is transmitted by at least one of: the positioning device; at least one device for transmitting radio signals other than the positioning device; or the positioning device, and at least one device for transmitting radio signals other than the positioning device.
The method according to any one of claims 1 to 3, wherein the positioning device is an initiating positioning device, wherein the initiating positioning device is configured to initiate positioning of the zero-power tag device; or the positioning device is one of at least one intermediate device, wherein the intermediate device is configured to assist an initiating positioning device in positioning the zero-power tag device, the initiating positioning device being configured to initiate positioning of the zero-power tag device.
The method according to any one of claims 1 to 4, wherein the second radio signal comprises: a first carrier signal or a plurality of second carrier signals; wherein the plurality of the second carrier signals are transmitted by a same device, or the plurality of the second carrier signals are respectively transmitted by a plurality of devices.
The method according to claim 5, wherein the plurality of second carrier signals differ in at least one of: a transmission time, a frequency, or a transmission period.
The method according to any one of claims 1 to 6, wherein the first radio signal comprises at least one of: a single third carrier signal or a plurality of fourth carrier signals; wherein the plurality of fourth carrier signals are transmitted consecutively, or the plurality of fourth carrier signals are transmitted periodically.
The method according to claim 7, wherein the plurality of fourth carrier signals have different frequencies.
The method according to claim 4, wherein in a case where the positioning device is the intermediate device, positioning the zero-power tag device based on the first radio signal from the zero-power tag device comprises: in response to receiving a trigger signal from an initiating positioning device, positioning the zero-power tag device based on the first radio signal from the zero-power tag device.
The method according to claim 9, further comprising: reporting a positioning result of positioning the zero-power tag device to the initiating positioning device.
The method according to claim 9 or 10, wherein the trigger signal comprises at least one of: a wake-up signal for waking up the positioning device; or a positioning trigger signal for triggering the positioning device to position the zero-power tag device.
The method according to any one of claims 1 to 11, further comprising: receiving the first radio signal from the zero-power tag device.
The method according to any one of claims 1 to 12, wherein positioning the zero-power tag device based on the first radio signal from the zero-power tag device comprises: calculating a relative position between the zero-power tag device and the positioning device based on the first radio signal from the zero-power tag device and a predetermined positioning algorithm.
The method according to claim 13, wherein the positioning algorithm comprises at least one of: a ranging algorithm based on a signal strength; an angle measurement algorithm based on a signal angle of arrival and a signal angle of departure; a positioning algorithm based on a signal phase difference; or a positioning algorithm based on a signal time difference of arrival.
The method according to claim 13 or 14, wherein calculating the relative position between the zero-power tag device and the positioning device based on the first radio signal from the zero-power tag device and the predetermined positioning algorithm comprises: calculating the relative position between the zero-power tag device and the positioning device based on the first radio signal, the positioning algorithm, and position information of the positioning device.
The method according to claim 15, wherein the position information of the positioning device is acquired based on at least one of: a machine vision positioning algorithm; or an inertial navigation positioning algorithm.
The method according to any one of claims 1 to 16, wherein at least one of the first radio signal or the second radio signal is a radio signal transmitted over sidelink communication.
A positioning method, performed by a zero-power tag device, the method comprising: in response to receiving a second radio signal, actively transmitting a first radio signal, or passively transmitting the first radio signal via backscatter modulation on the second radio signal; wherein the first radio signal is configured for a positioning device to position the zero-power tag device, and the second radio signal is used to energize to the zero-power tag device or wake up the zero-power tag device.
The method according to claim 18, wherein the second radio signal is further used to trigger the zero-power tag device to transmit the first radio signal; or the first radio signal is transmitted in a case where the zero-power tag device receives a third radio signal for triggering transmission of the first radio signal, and receives energy from the second radio signal and/or backscatters the second radio signal.
The method according to claim 18 or 19, wherein the second radio signal is transmitted by at least one of: the positioning device; at least one device for transmitting radio signals other than the positioning device; or the positioning device, and at least one device for transmitting radio signals other than the positioning device.

Description

TECHNICAL FIELD The present disclosure relates to the technical field of communications, and in particular, relates to a positioning method, and an apparatus, a device, a storage medium, and a chip thereof. RELATED ART With the continuous development of mobile communications technologies, the demand for positioning based on mobile communications is increasing. In the related arts, positioning may be performed between two terminals over the Internet of things (IoT) or a cellular network. For example, an IoT connection or a cellular network connection is established between two terminals in the IoT and the cellular network establish, and then applications such as absolute positioning, relative positioning, ranging, and direction finding are implemented by receiving and detecting signals over the IoT connection or the cellular network connection. SUMMARY Embodiments of the present disclosure provide a positioning method, and an apparatus, a device, a storage medium and a chip thereof. The technical solutions are as follows. According to an aspect of the embodiments of the present disclosure, a positioning method is provided. The method is performed by a positioning device. The method includes: positioning a zero-power tag device based on a first radio signal from the zero-power tag device; wherein the first radio signal is actively transmitted by the zero-power tag device in response to receiving a second radio signal, or the first radio signal is passively transmitted via backscatter modulation on the second radio signal; wherein the second radio signal is used to energize the zero-power tag device or wake up the zero-power tag device. The first radio signal is actively transmitted by the zero-power tag device or passively transmitted by the zero-power tag device via backscatter modulation on the second radio signal in response to the zero-power tag device receiving energy from the second radio signal or being waked up by the second radio signal. According to an aspect of the embodiments of the present disclosure, a positioning method is provided. The method is performed by a zero-power tag device. The method includes: in response to receiving a second radio signal, actively transmitting a first radio signal, or passively transmitting the first radio signal via backscatter modulation on the second radio signal; wherein the first radio signal is configured for a positioning device to position the zero-power tag device, and the second radio signal is used to energize the zero-power tag device or wake up the zero-power tag device. According to another aspect of the embodiments of the present disclosure, a positioning apparatus is provided. The apparatus includes: a positioning module, configured to position a zero-power tag device based on a first radio signal from the zero-power tag device; wherein the first radio signal is actively transmitted by the zero-power tag device in response to receiving a second radio signal, or the first radio signal is passively transmitted via backscatter modulation on the second radio signal; wherein the second radio signal is used to energize the zero-power tag device or wake up the zero-power tag device. According to another aspect of the embodiments of the present disclosure, a positioning apparatus is provided. The apparatus includes: a transmitting module, configured to, in response to receiving a second radio signal, actively transmit a first radio signal, or passively transmit the first radio signal via backscatter modulation on the second radio signal; wherein the first radio signal is configured for a positioning device to position the zero-power tag device, and the second radio signal is used to energize the zero-power tag device or wake up the zero-power tag device. According to another aspect of the embodiments of the present disclosure, a positioning device is provided. The device includes a processor, a memory, and a transceiver. The memory stores one or more computer programs. The processor, when running the one or more computer programs, causes the positioning device to perform the positioning method performed by the positioning device. According to another aspect of the embodiments of the present disclosure, a zero-power tag device is provided. The device includes a processor, a memory, and a transceiver. The memory stores one or more computer programs. The processor, when running the one or more computer programs, causes the positioning device to perform the positioning method performed by the zero-power tag device. According to another aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided. The computer-readable storage medium stores one or more computer programs. The one or more computer programs, when run by a processor, causes the processor to perform the positioning method as described above. According to another aspect of the embodiments of the present disclosure, a chip is provided. The chip, when running on a