Apparatus and method for wireless distance measurement
First Claim
1. A method for operating a second wireless device in a wireless communication system, the method comprising:
- receiving a first signal for distance measurement transmitted from a first wireless device;
receiving a reflected signal, wherein the reflected signal is the first signal reflected by a reflector;
estimating a distance between the second wireless device and the reflector, wherein;
the first signal comprises a beam signal transmitted to the reflector and a sidelobe signal of the beam signal, andthe distance is estimated based on a reception time difference between the sidelobe signal and the reflected signal;
determining an accuracy for the distance based on a correlation peak regarding the reflected signal; and
displaying the estimated distance on a screen of the second wireless device.
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Accused Products
Abstract
The present disclosure relates to a sensor network, Machine Type Communication (MTC), Machine-to-Machine (M2M) communication, and technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the above technologies, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. An apparatus and method for measuring a distance between wireless devices using a first signal transmitted/received between the wireless devices in a wireless communication system are provided. The method includes: receiving the first signal for distance measurement transmitted from a first of the wireless devices; receiving a signal reflected by a reflector after being transmitted from the first of the wireless devices; and based on the received first signal and the received reflected signal, estimating a distance between the second of the wireless devices and the reflector.
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Citations
36 Claims
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1. A method for operating a second wireless device in a wireless communication system, the method comprising:
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receiving a first signal for distance measurement transmitted from a first wireless device; receiving a reflected signal, wherein the reflected signal is the first signal reflected by a reflector; estimating a distance between the second wireless device and the reflector, wherein; the first signal comprises a beam signal transmitted to the reflector and a sidelobe signal of the beam signal, and the distance is estimated based on a reception time difference between the sidelobe signal and the reflected signal; determining an accuracy for the distance based on a correlation peak regarding the reflected signal; and displaying the estimated distance on a screen of the second wireless device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for operating by a first wireless device in a wireless communication system, the method comprising:
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transmitting a first signal for distance measurement, wherein the first signal comprises a beam signal transmitted to a reflector and a sidelobe signal of the beam signal; and receiving, from the second wireless device, information about a distance between a second wireless device and a reflector, wherein the distance is estimated by the second wireless device based on a reception time difference between the sidelobe signal and the reflected signal, wherein an accuracy for the distance is determined based on a correlation peak regarding the reflected signal; and displaying the estimated distance on a screen of the first wireless device. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus of a second wireless device in a wireless communication system, the apparatus comprising:
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a screen; least one transceiver configured to; receive a first signal for distance measurement transmitted from a first wireless device; and receive a reflected signal, wherein the reflected signal is the first signal reflected by a reflector; and at least one processor configured to; estimate a distance between the second wireless device and the reflector, wherein; the first signal comprises a beam signal transmitted to the reflector and a sidelobe signal of the beam signal, and the distance is estimated based on a reception time difference between the sidelobe signal and the reflected signal; determine an accuracy for the distance based on a correlation peak regarding the reflected signal; and display the estimated distance on the screen. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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28. An apparatus of a first wireless device in a wireless communication system, the apparatus comprising:
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a screen; at least one transceiver configured to; transmit a first signal for distance measurement, wherein the first signal comprises a beam signal transmitted to a reflector and a sidelobe signal of the beam signal; and receive, from a second wireless device, information about a distance between the second wireless device and a reflector, wherein the distance is estimated by the second wireless device based on a reception time difference between the sidelobe signal and the reflected signal, wherein an accuracy for the distance is determined based on a correlation peak regarding the reflected signal; and at least one processor configured to display the estimated distance on the screen of the first wireless device. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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Specification