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US 12,669,580 B2Granted
Wireless communication with enhanced maximum permissible exposure (MPE) compliance
AssigneeQUALCOMM Incorporated
InventorsRoberto Rimini, Tsai-Chen Huang
Life of this patent
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Abstract
Aspects of the disclosure relate to classifying a target object. An electronic device may transmit a detection signal and receive a reflection signal reflected from the target object. The electronic device then determines, based on one or more features of the reflection signal, a category of the target object and adjusts at least one transmission parameter based on the category. The electronic device then transmits an adjusted signal using the transmission parameter. Other aspects, embodiments, and features are also claimed and described.
Claims30
A method of wireless communication comprising:
- transmitting a plurality of detection signals;
- receiving, corresponding to the plurality of detection signals, a plurality of reflection signals reflected from an object;
- categorizing, based on variations over time of measurements of the plurality of reflection signals, the object as a living object or a non-living object, wherein the variations over time of the measurements comprise at least one of:
- a variance of a dynamic time warping of the plurality of reflection signals;
- a maximum of the dynamic time warping of the plurality of reflection signals;
- a variance of a difference between a peak power in each reflection signal of the plurality of reflection signals, and an average peak power across the plurality of reflection signals;
- a variance of a difference between a distance where a peak power lies in each reflection signal of the plurality of reflection signals, and an average distance where the peak power lies in the plurality of reflection signals;
- a variance of a real part of time domain samples of the plurality of reflection signals;
- or
- a variance of an imaginary part of time domain samples of the plurality of reflection signals;
- and
- transmitting, using a transmission parameter, a transmission signal, wherein:
- the transmission parameter is a first transmission parameter if the object is categorized as the living object;
- and
- the transmission parameter is a second transmission parameter if the object is categorized as the non-living object, wherein the second transmission parameter is different from the first transmission parameter.
12 more elements
A wireless communication device comprising:
- one or more processors;
- and
- a transceiver coupled to the one or more processors, wherein the one or more processors are coupled to a memory, and wherein the wireless communication device is configured to:
- transmit a plurality of detection signals;
- receive corresponding to the plurality of detection signals, a plurality of reflection signals reflected from an object;
- categorize, based on variations over time of measurements of the plurality of reflection signals, the object as a living object or a non-living object, wherein the variations over time of the measurements comprise at least one of:
- a variance of a dynamic time warping of the plurality of reflection signals;
- a maximum of the dynamic time warping of the plurality of reflection signals;
- a variance of a difference between a peak power in each reflection signal of the plurality of reflection signals, and an average peak power across the plurality of reflection signals;
- a variance of a difference between a distance where a peak power lies in each reflection signal of the plurality of reflection signals, and an average distance where the peak power lies in the plurality of reflection signals;
- a variance of a real part of time domain samples of the plurality of reflection signals;
- or
- a variance of an imaginary part of time domain samples of the plurality of reflection signals;
- and
- transmit, using a transmission parameter, a transmission signal, wherein:
- the transmission parameter is a first transmission parameter if the object is categorized as the living object;
- and
- the transmission parameter is a second transmission parameter if the object is categorized as the non-living object, wherein the second transmission parameter is different from the first transmission parameter.
15 more elements
An apparatus for wireless communication comprising:
- means for transmitting a plurality of detection signals;
- means for receiving, corresponding to the plurality of detection signals, a plurality of reflection signals reflected from an object;
- means for categorizing, based on variations over time of measurements of the plurality of reflection signals, the object as a living object or a non-living object, wherein the variations over time of the measurements comprise at least one of:
- a variance of a dynamic time warping of the plurality of reflection signals;
- a maximum of the dynamic time warping of the plurality of reflection signals;
- a variance of a difference between a peak power in each reflection signal of the plurality of reflection signals, and an average peak power across the plurality of reflection signals;
- a variance of a difference between a distance where a peak power lies in each reflection signal of the plurality of reflection signals, and an average distance where the peak power lies in the plurality of reflection signals;
- a variance of a real part of time domain samples of the plurality of reflection signals;
- or
- a variance of an imaginary part of time domain samples of the plurality of reflection signals;
- and
- means for transmitting, using a transmission parameter, a transmission signal, wherein:
- the transmission parameter is a first transmission parameter if the object is categorized as the living object;
- and
- the transmission parameter is a second transmission parameter if the object is categorized as the non-living object, wherein the second transmission parameter is different from the first transmission parameter.
12 more elements
A non-transitory computer readable medium having code stored thereon that, when executed, causes a wireless communication device to:
- transmit a plurality of detection signals;
- receive, corresponding to the plurality of detection signals, a plurality of reflection signals reflected from an object;
- categorize, based on variations over time of measurements of the plurality of reflection signals, the object as a living object or a non-living object, wherein the variations over time of the measurements comprise at least one of:
- a variance of a dynamic time warping of the plurality of reflection signals;
- a maximum of the dynamic time warping of the plurality of reflection signals;
- a variance of a difference between a peak power in each reflection signal of the plurality of reflection signals, and an average peak power across the plurality of reflection signals;
- a variance of a difference between a distance where a peak power lies in each reflection signal of the plurality of reflection signals, and an average distance where the peak power lies in the plurality of reflection signals;
- a variance of a real part of time domain samples of the plurality of reflection signals;
- or
- a variance of an imaginary part of time domain samples of the plurality of reflection signals;
- and
- transmit, using a transmission parameter, a transmission signal, wherein:
- the transmission parameter is a first transmission parameter if the object is categorized as the living object;
- and
- the transmission parameter is a second transmission parameter if the object is categorized as the non-living object, wherein the second transmission parameter is different from the first transmission parameter.
12 more elements
Dependencies are inferred from the claim text.