Method, an apparatus and a computer program product for positioning
First Claim
1. An apparatus comprising at least one processor and memory including computer program code, the memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following:
- obtain information of signal strength of one or more wireless signals transmitted by one or more access points;
obtain information of signal strength distribution of the wireless signals;
use the information of signal strength and the information of signal strength distribution in relation to a plurality of radio maps which comprise information of signal strength measurements of the one or more access points to determine a first likelihood that a device is in an indoors area and to determine a second likelihood that the device is in an outdoors area, wherein one or more of the radio maps cover the indoors area and one or more of the radio maps cover the outdoors area;
determine that the device is indoors, if the first likelihood is greater than the second likelihood; and
determine that the device is outdoors, if the second likelihood is greater than the first likelihood.
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Accused Products
Abstract
The invention relates to determination of a location of a device of a user. In a methods, information of signal strength of one or more wireless signals and information of signal strength distribution of wireless signals is obtained by a device. The information of signal strength and the information of signal strength distribution are used to determine at least one likelihood whether the device is inside an area. In the method radio maps representing signal strength distribution in the building may be used.
29 Citations
20 Claims
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1. An apparatus comprising at least one processor and memory including computer program code, the memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following:
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obtain information of signal strength of one or more wireless signals transmitted by one or more access points; obtain information of signal strength distribution of the wireless signals; use the information of signal strength and the information of signal strength distribution in relation to a plurality of radio maps which comprise information of signal strength measurements of the one or more access points to determine a first likelihood that a device is in an indoors area and to determine a second likelihood that the device is in an outdoors area, wherein one or more of the radio maps cover the indoors area and one or more of the radio maps cover the outdoors area; determine that the device is indoors, if the first likelihood is greater than the second likelihood; and determine that the device is outdoors, if the second likelihood is greater than the first likelihood. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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obtaining information of signal strength of one or more wireless signals transmitted by one or more access points; obtaining information of signal strength distribution of the wireless signals; using the information of signal strength and the information of signal strength distribution in relation to a plurality of radio maps which comprise information of signal strength measurements of the one or more access points to determine a first likelihood that a device is in an indoors area and to determine a second likelihood that the device is in an outdoors area, wherein one or more of the radio maps cover the indoors area and one or more of the radio maps cover the outdoors area; determining that the device is indoors, if the first likelihood is greater than the second likelihood; and determining that the device is outdoors, if the second likelihood is greater than the first likelihood. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer program product embodied on a non-transitory computer readable medium, comprising computer program code configured to, when executed on at least one processor, cause an apparatus or a system to:
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obtain information of signal strength of one or more wireless signals transmitted by one or more access points; obtain information of signal strength distribution of the wireless signals; use the information of signal strength and the information of signal strength distribution in relation to a plurality of radio maps which comprise information of signal strength measurements of the one or more access points to determine a first likelihood that a device is in an indoors area and to determine a second likelihood that the device is in an outdoors area, wherein one or more of the radio maps cover the indoors area and one or more of the radio maps cover the outdoors area; determine that the device is indoors, if the first likelihood is greater than the second likelihood; and determine that the device is outdoors, if the second likelihood is greater than the first likelihood. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification