Method and apparatus for determining the position of a portable device
First Claim
1. An apparatus for determining a location of a wireless device in a wireless communication network provided by a plurality of base stations;
- and the apparatus comprising;
a signal strength table characterizing signal strengths relative to each of plurality base stations at each of a plurality of locations in the wireless communication network; and
a positioning service module to correlate an actual received signal strength for a communication with the wireless device with at least one of the received signal strengths in the signal strength table, whereby to determine the position of the wireless device.
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Accused Products
Abstract
Method and Apparatus are disclosed for determining the position of a portable device in a wireless network formed by a plurality of base stations. In an embodiment an apparatus for determining a location of a wireless device in a wireless communication network provided by a plurality of base stations is disclosed. The apparatus comprises a signal strength table and a positioning service module. The signal strength table characterizes signal strengths relative to each of plurality base stations at each of a plurality of locations in the wireless communication network. The positioning service module correlates an actual received signal strength for a communication with the wireless device with at least one of the received signal strengths in the signal strength table, to determine the position of the wireless device. Alternate means and methods are also disclosed for determining the position of the portable device.
113 Citations
23 Claims
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1. An apparatus for determining a location of a wireless device in a wireless communication network provided by a plurality of base stations;
- and the apparatus comprising;
a signal strength table characterizing signal strengths relative to each of plurality base stations at each of a plurality of locations in the wireless communication network; and
a positioning service module to correlate an actual received signal strength for a communication with the wireless device with at least one of the received signal strengths in the signal strength table, whereby to determine the position of the wireless device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- and the apparatus comprising;
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8. A method for determining a location of a wireless device in a wireless communication network provided by a plurality of base stations;
- and the method comprising;
characterizing signal strengths relative to each of the base stations at each of a plurality of locations in the wireless communication network; and
correlating an actual received signal strength for a communication with the wireless device with at least one of the signal strengths characterized in the characterizing act, whereby to determine the position of the wireless device. - View Dependent Claims (9, 10)
- and the method comprising;
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11. A method in a portable device for determining a position of the portable device in a wireless communication network provided by a plurality of base stations;
- and the method comprising;
acquiring an identity of at least one of the plurality of base stations within a transmission range of the portable device, retrieving a list comprising information about which of the plurality of base stations cover specific position segments in the wireless communication network formed by the plurality of base stations; and
determining the position of the portable device from the information in the list and the acquired identity. - View Dependent Claims (12, 13, 14, 15, 16)
- and the method comprising;
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17. A portable device operable in a wireless communication network provided by a plurality of base stations;
- and the portable device comprising;
means for acquiring an identity of at least one of the plurality of base stations within a transmission range of the portable device;
means for retrieving a list comprising information about which base stations cover specific position segments in the wireless communication network formed by the plurality of base stations; and
means for determining the position of the portable device from the information in the list and the acquired identity. - View Dependent Claims (18, 19, 20)
- and the portable device comprising;
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21. A method for determining a position of a portable device in a wireless communication network provided by a plurality of base stations;
- and the method comprising;
transmitting an identity from corresponding ones of the plurality of base stations within a transmission range of the portable device to the portable device;
transmitting a list from one of the plurality of base stations to the portable device, and the list comprising information about which of the plurality of base stations cover specific position segments in the wireless communication network formed by the plurality of base stations; and
determining within the portable device, a position of the portable device from the information in the list and the transmitted identity. - View Dependent Claims (22, 23)
- and the method comprising;
Specification