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US 12,699,178 B2Granted
Inter-node ranging method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorYupeng Hu
Life of this patent
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Abstract
An inter-node ranging method includes a first node that sends a plurality of first sequences to a second node; the first node receives a plurality of second delayed sequences from the second node; the first node determines a first phase difference between the first sequences and the second delayed sequences; and the first node determines a distance between the first node and the second node based on the first phase difference.
Claims20
A method implemented by a first node, wherein the method comprising:
- sending, to a second node, first sequences;
- receiving, from the second node in response to the first sequences, second delayed sequences;
- splicing, based on a first order of sending the first sequences, the first sequences into a first long sequence;
- splicing, based on a second order of receiving the second delayed sequences, the second delayed sequences into a second long sequence;
- obtaining, based on the first long sequence and the second long sequence, a first phase difference between the first sequences and the second delayed sequences;
- and
- obtaining, based on the first phase difference, a distance between the first node and the second node.
4 more elements
A method implemented by a second node, the method comprising:
- receiving, from a first node, first delayed sequences, wherein the first delayed sequences are based on a channel delay on first sequences;
- receiving, after receiving the first delayed sequences, second delayed sequences instructing to send third sequences to the first node, wherein the second delayed sequences are based on the channel delay on fourth sequences from the first node;
- and
- sending, to the first node in response to the first delayed sequences, second sequences to enable the first node to obtain a distance between the first node and the second node.
1 more element
A first node comprising:
- a transmitter configured to send first sequences to a second node;
- a receiver configured to receive second delayed sequences from the second node in response to the first sequences;
- one or more processors coupled to the transmitter and the receiver and configured to:
- splice, based on a first order of sending the first sequences, the first sequences into a first long sequence;
- splice, based on a second order of receiving the second delayed sequences, the second delayed sequences into a second long sequence;
- obtain, based on the first long sequence and the second long sequence, a phase difference between the first sequences and the second delayed sequences;
- and
- obtain, based on the phase difference, a distance between the first node and the second node.
5 more elements
Dependencies are inferred from the claim text.