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US 12,719,545 B2Granted
Interferometer techniques for subterahertz MIMO systems
AssigneeHuawei Technologies Co., Ltd.
InventorsAhmad Abu Al Haija, Mohammadhadi Baligh
Life of this patent
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Abstract
Techniques of using interferometry for sensing movement of an object in a communications network operating at high frequency are provided. The distance between slits does not need to be large to achieve high resolution due to the short wavelength (λ) at high frequency. Therefore, considering multi-panel, or multi-portion panel transmission, the distance between panels, or portions of a panel, may be sufficient to achieve high accuracy, even considering the case of the single panel that is virtually divided into two or more subpanels by controlling the phase shifts in each subpanel. Methods of signaling associated with an over-the-air (OTA) interferometer between a transmitter and receiver for measuring movement of an object are provided.
Claims20
A method comprising:
- receiving, by a user equipment (UE), first configuration information including information pertaining to reference signals used during interferometric measurement;
- measuring, by the UE, signal strength of the reference signals in a plurality of time slots based on the first configuration information, wherein a reference signal transmitted from at least a portion of an antenna panel of a base station in each of the plurality of time slots has a different phase value from another reference signal transmitted from at least one other portion of the antenna panel of the base station or a portion of another antenna panel of the base station in each of the plurality of time slots;
- and
- sending, by the UE, feedback information based on measurements made during the plurality of time slots.
1 more element
A device comprising:
- at least one processor;
- and
- a computer-readable storage media, having stored thereon, computer executable instructions, that when executed by the at least one processor, cause the device to perform operations including:
- receiving first configuration information including information pertaining to reference signals used during interferometric measurement;
- measuring signal strength of the reference signals in a plurality of time slots based on the first configuration information, wherein a reference signal transmitted from at least a portion of an antenna panel of a base station in each of the plurality of time slots has a different phase value from another reference signal transmitted from at least one other portion of the antenna panel of the base station or a portion of another antenna panel of the base station in each of the plurality of time slots;
- and
- sending feedback information based on measurements made during the plurality of time slots,
- wherein the device is or is part of a user equipment (UE).
5 more elements
A method comprising:
- transmitting, by a base station, first configuration information including information pertaining to reference signals used during interferometric measurement;
- transmitting, by the base station, reference signals in a plurality of time slots based at least in part on the first configuration information, wherein a reference signal transmitted from at least a portion of an antenna panel of the base station in each of the plurality of time slots has a different phase value from another reference signal transmitted from at least one other portion of the antenna panel of the base station or a portion of another antenna panel of the base station in each of the plurality of time slots;
- receiving, by the base station, feedback information based on measurements of signal strength of the reference signals in the plurality of time slots based on the first configuration information;
- and
- determining, by the base station, an amount of movement of an object based on the feedback information.
2 more elements
A device comprising:
- at least one processor;
- and
- a computer-readable storage media, having stored thereon, computer executable instructions, that when executed by the at least one processor, cause the device to perform operations including:
- transmitting first configuration information including information pertaining to reference signals used during interferometric measurement;
- transmitting reference signals in a plurality of time slots based at least in part on the first configuration information, wherein a reference signal transmitted from at least a portion of an antenna panel of a base station in each of the plurality of time slots has a different phase value from another reference signal transmitted from at least one other portion of the antenna panel of the base station or a portion of another antenna panel of the base station in each of the plurality of time slots;
- receiving feedback information based on measurements of signal strength of the reference signals in the plurality of time slots based on the first configuration information;
- and
- determining an amount of movement of an object based on the feedback information,
- wherein the device is or is part of the base station.
6 more elements
Dependencies are inferred from the claim text.