Method and apparatus for performing channel sounding using transparent pseudo random noise
AssigneeSamsung Electronics Co., Ltd.
InventorsFei TONG, Jacob C. Sharpe
Life of this patent
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Abstract
Methods and devices for performing channel sounding, including: receiving a channel sounding signal generated based on a sounding sequence and an artificial noise symbol from the second electronic device; subtracting the artificial noise symbol from the channel sounding signal to reconstruct the sounding sequence; calculating a travel time between the first electronic device and the second electronic device based on the sounding sequence; and determining a distance between the first electronic device and the second electronic device based on the travel time.
Claims20
A first electronic device for performing channel sounding, the first electronic device comprising:
- a transceiver configured to communicate with a second electronic device;
- at least one processor;
- and
- a memory configured to store instructions which, when executed by the at least one processor, cause the first electronic device to:
- receive a channel sounding signal generated based on a sounding sequence and an artificial noise symbol from the second electronic device;
- subtract the artificial noise symbol from the channel sounding signal to reconstruct the sounding sequence;
- calculate a travel time between the first electronic device and the second electronic device based on the sounding sequence;
- and
- determine a distance between the first electronic device and the second electronic device based on the travel time.
A method of performing channel sounding, the method being performed by at least one processor and comprising:
- receiving, by a first electronic device from a second electronic device, a channel sounding signal generated based on a sounding sequence and an artificial noise symbol from the second electronic device;
- subtracting the artificial noise symbol from the channel sounding signal to reconstruct the sounding sequence;
- calculating a travel time for the channel sounding signal between the first electronic device and the second electronic device based on the sounding sequence;
- and
- determining a distance between the first electronic device and the second electronic device based on the travel time.
A second electronic device for performing channel sounding, the second electronic device comprising:
- a Gaussian frequency-shift keying (GFSK) modulator configured to generate a sounding sequence;
- an orthogonal frequency-division multiplexing (OFDM) modulator configured to generate an artificial noise symbol;
- at least one processor;
- and
- a memory configured to store instructions which, when executed by the at least one processor, cause the second electronic device to:
- generate a channel sounding signal based on a sum of the sounding sequence and the artificial noise symbol;
- and
- transmit the channel sounding signal to a receiver.
Dependencies are inferred from the claim text.