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US 10,732,254 B2Granted
Channel-based positioning device, channel-based positioning system and channel-based positioning method
AssigneeIndustrial Technology Research Institute
InventorsPi-Chen Chiu, Ting-Wu Ho, Chia-Lung Liu
Life of this patent
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Abstract
The disclosure provides a channel-based positioning device, a channel-based positioning system and a channel-based positioning method. The channel-based positioning method includes: calculating a plurality of angles of arrival (AoA), a plurality of angles of departure (AoD) and a plurality of time of flight (ToF) of signals according to a plurality of channel state information transmitted from a terminal apparatus to a base station; determining a path type of the signals according to the plurality of AoA, AoD and ToF of the signals; and calculating a position information of the terminal apparatus relative to the base station through a specific algorithm.
Claims24
A channel-based positioning device, comprising:
- a receiving module configured for receiving a plurality of channel state information (CSI) of a plurality of signals transmitted by a terminal apparatus to a base station, wherein the terminal apparatus includes at least two terminal antennae, and the base station includes at least two base station antennae;
- a calculating module configured for calculating a plurality of angles of departure (AoD), a plurality of angles of arrival (AoA) and a plurality of time of flight (ToF) of the plurality of signals of the terminal apparatus relative to the base station based on the plurality of signals comprising the CSI;
- a path type determining module configured for determining a path type of the plurality of signals based on the plurality of AoD, the plurality of AoA and the plurality of ToF and determining whether a first difference between the AoA or the AoD of signals from any two of the at least two terminal antennae reaches a first threshold, whether a second difference between the ToF of the signals from the two terminal antennae reaches a second threshold, whether the AoD of the two terminal antennae has a greater one or a less one of different standard deviations, or whether the AoD of the two terminal antennae are dividable in two groups or not;
- and
- a positioning module configured for calculating position information of the terminal apparatus relative to the base station based on the path type of the plurality of signals.
2 more elements
A channel-based positioning system, comprising:
- a base station including at least two base station antennae;
- a terminal apparatus including at least two terminal antennae and configured for transmitting a plurality of signals to the base station for the base station to obtain a plurality of channel state information (CSI);
- and
- a positioning device, including:
- a receiving module configured for receiving the plurality of CSI;
- a calculating module configured for calculating a plurality of angles of departure (AoD), a plurality of angles of arrival (AoA) and a plurality of time of flight (ToF) of the plurality of signals of the terminal apparatus relative to the base station based on the plurality of signals comprising the CSI;
- a path type determining module configured for determining a path type of the plurality of signals based on the plurality of AoD, the plurality of AoA and the plurality of ToF and determining whether a first difference between the AoA or the AoD of signals from any two of the at least two terminal antennae reaches a first threshold, whether a second difference between the ToF of the signals from the two terminal antennae reaches a second threshold, whether the AoD of the two terminal antennae has a greater one or a less one of different standard deviations, or whether the AoD of the two terminal antennae are dividable in two groups or not;
- and
- a positioning module configured for calculating position information of the terminal apparatus relative to the base station based on the path type of the plurality of signals.
6 more elements
A channel-based positioning method, comprising:
- obtaining a plurality of channel state information (CSI) of a plurality of signals transmitted by a terminal apparatus to a base station, wherein the terminal apparatus includes at least two terminal antennae, and the base station includes at least two base station antennae;
- calculating a plurality of angles of departure (AoD), a plurality of angles of arrival (AoA) and a plurality of time of flight (ToF) of the plurality of signals of the terminal apparatus relative to the base station based on the plurality of signals comprising the CSI;
- determining a path type of the plurality of signals based on the plurality of AoD, the plurality of AoA and the plurality of ToF and determining whether a first difference between the AoA or the AoD of signals from any two of the at least two terminal antennae reaches a first threshold, whether a second difference between the ToF of the signals from the two terminal antennae reaches a second threshold, whether the AoD of the two terminal antennae has a greater one or a less one of different standard deviations, or whether the AoD of the two terminal antennae are dividable in two groups or not;
- and
- calculating position information of the terminal apparatus relative to the base station based on the path type of the plurality of signals.
2 more elements
Dependencies are inferred from the claim text.