SIGNALING IN A WIRELESS POSITIONING SYSTEM
3 Assignments
0 Petitions
Accused Products
Abstract
Devices, systems, and methods for sending positional information from transmitters/beacons. In one implementation a transmitter generates a range block including a ranging signal and a hybrid block including positioning data, and sends the range block and hybrid block in predefined slots in a transmit frame. A receiver in a user device receives signals from a plurality of transmitters and generates position/location information using trilateration and measured altitude information in comparison with transmitter altitude information.
-
Citations
21 Claims
- 1. (canceled)
-
2. A method for providing information used to compute a position of a receiver, comprising:
-
generating a first range block that includes a first ranging signal; sending the first range block from a first transmitter during a first transmit frame using a predefined slot of a plurality of predefined slots; generating a first hybrid block that includes one or more of (1) data associated with a location of the first transmitter and (2) data associated with environmental conditions that are associated with the first transmitter; and sending the first hybrid block from the first transmitter during a second transmit frame using one of the plurality of predefined slots.
-
-
21. A positioning system for providing information used to compute a position of a receiver, the positioning system comprising a plurality of terrestrial transmitters, wherein each of the plurality of transmitters:
-
generates a range block that includes a ranging signal corresponding to that transmitter; sends the range block during a first transmit frame using one of a plurality of predefined slots; generates a hybrid block that includes one or more of (1) data associated with a location of that transmitter and (2) data associated with environmental conditions that are associated with that transmitter; and sends the hybrid block during a second transmit frame using one of the plurality of predefined slots.
-
Specification