Sensor-aided beam management at user equipment
AssigneeSamsung Electronics Co., Ltd.
InventorsHoda Shahmohammadian, Jung Hyun Bae, Jungwon Lee, Dongwoon Bai
Life of this patent
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Abstract
Methods and apparatuses are provided in which position information is determined corresponding to movement of a user equipment (UE) from first local coordinates to second local coordinates. Receive angles of the UE are derived from the position information of the UE. A beamforming weight of the UE is determined based on the derived receive angles of the UE. The beamforming weight is configured such that a beam direction of the second local coordinates matches a beam direction of the first local coordinates.
Claims19
A method comprising:
- determining position information corresponding to movement of a user equipment (UE) from first local coordinates to second local coordinates;
- deriving receive angles of the UE from the position information of the UE;
- and
- determining a beamforming weight of the UE based on the derived receive angles of the UE, wherein the beamforming weight is configured to compensate for a change in a local coordinate system of the UE such that a beam direction associated with the first local coordinates is preserved.
A method comprising:
- estimating a first beamforming channel of a user equipment (UE) associated with first local coordinates;
- determining position information corresponding to movement of the UE from the first local coordinates to second local coordinates;
- estimating a second beamforming channel of the UE corresponding to the second local coordinates based on the first beamforming channel and the position information;
- and
- determining a beamforming weight for the second local coordinates based on the second beamforming channel and a decision metric, wherein the beamforming weight corresponds to a change in a beam direction associated with the second local coordinates,
- wherein the first beamforming channel is estimated based on a sensing channel recovery algorithm, and the second beamforming channel is estimated based on a technique including at least one of maximum likelihood, minimum mean square error (MMSE), autoregressive (AR) modeling, Kalman filtering, and Wiener filtering.
A user equipment (UE) comprising:
- a processor;
- and
- a non-transitory computer readable storage medium storing instructions that, when executed, cause the processor to:
- determine position information corresponding to movement of the UE from first local coordinates to second local coordinates;
- derive receive angles of the UE from the position information of the UE;
- and
- determine a beamforming weight of the UE based on the derived receive angles of the UE, wherein the beamforming weight is configured to compensate for a change in a local coordinate system of the UE such that a beam direction associated with the first local coordinates is preserved.
Dependencies are inferred from the claim text.