Techniques for estimating distance between wireless communication devices
First Claim
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1. A first apparatus for wireless communication, comprising:
- an interface for obtaining a plurality of training signals received in a plurality of directions from a second apparatus; and
a processing system configured to estimate a distance between the first apparatus and the second apparatus, wherein the estimation comprises estimating the distance based on receive powers of first and second training signals of the plurality of training signals.
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Abstract
Certain aspects of the present disclosure relate to techniques and apparatus for estimating a distance between a first and second apparatus. For example, the first apparatus may obtain a plurality of training signals received in a plurality of directions from a second apparatus and estimate, based on the plurality of training signals, a distance between the first apparatus and the second apparatus. In certain aspects, the distance may be estimated based on a ratio of receive powers of first and second training signals of the plurality of training signals.
32 Citations
32 Claims
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1. A first apparatus for wireless communication, comprising:
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an interface for obtaining a plurality of training signals received in a plurality of directions from a second apparatus; and a processing system configured to estimate a distance between the first apparatus and the second apparatus, wherein the estimation comprises estimating the distance based on receive powers of first and second training signals of the plurality of training signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A first apparatus for wireless communication, comprising:
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a first interface for outputting, for transmission, a plurality of training signals in a plurality of directions to a second apparatus; a second interface for obtaining, from the second apparatus, parameters corresponding to the training signals as received at the second apparatus; and a processing system configured to estimate, based on the parameters, a distance between the first apparatus and the second apparatus, wherein the parameters comprise receive powers of first and second training signals of the plurality of training signals. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for wireless communication by a first apparatus, comprising:
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obtaining a plurality of training signals received in a plurality of directions from a second apparatus; and estimating, based on the plurality of training signals, a distance between the first apparatus and the second apparatus, wherein the estimation comprises estimating the distance based on receive powers of first and second training signals of the plurality of training signals. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. A method for wireless communication by a first apparatus, comprising:
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outputting, for transmission, a plurality of training signals in a plurality of directions to a second apparatus; obtaining, from the second apparatus, parameters corresponding to the training signals as received at the second apparatus; and estimating, based on the parameters, a distance between the first apparatus and the second apparatus, wherein the parameters comprise receive powers of first and second training signals of the plurality of training signals. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification