Position determination with peer-to-peer communication
First Claim
1. An apparatus comprising:
- at least one processor configured to generate a request for assistance in determining a position estimate for a target terminal, to select at least one sector in a wireless network for sending the request, and to send the request to at least one ranging terminal located in the at least one sector and capable of providing the assistance; and
a memory coupled to the at least one processor.
2 Assignments
0 Petitions
Accused Products
Abstract
For position determination with peer-to-peer communication, a target terminal broadcasts a request for assistance in determining its position. At least one ranging terminal receives the request. Each ranging terminal sends a response with a time of arrival (TOA) measurement for the request and the position of the ranging terminal. For two-way peer-to-peer, the target terminal receives at least one response from the at least one ranging terminal, obtains a TOA measurement for each response, estimates the distance to each ranging terminal based on the TOA measurement for the request and/or the TOA measurement for the response, and computes a position estimate for itself based on the estimated distance and the position for each ranging terminal. For one-way peer-to-peer, a network entity receives at least one response from the at least one ranging terminal, computes a position estimate for the target terminal, and sends the position estimate to the target terminal.
222 Citations
40 Claims
-
1. An apparatus comprising:
-
at least one processor configured to generate a request for assistance in determining a position estimate for a target terminal, to select at least one sector in a wireless network for sending the request, and to send the request to at least one ranging terminal located in the at least one sector and capable of providing the assistance; and
a memory coupled to the at least one processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A method comprising:
-
generating, at a target terminal, a request for assistance in determining a position estimate for the target terminal;
selecting at least one sector in a wireless network for sending the request; and
sending the request to at least one ranging terminal located in the at least one sector and capable of providing the assistance. - View Dependent Claims (18, 19)
-
-
20. An apparatus comprising:
-
means for generating, at a target terminal, a request for assistance in determining a position estimate for the target terminal;
means for selecting at least one sector in a wireless network for sending the request; and
means for sending the request to at least one ranging terminal located in the at least one sector and capable of providing the assistance. - View Dependent Claims (21, 22)
-
-
23. An apparatus comprising:
-
at least one processor configured to receive from a target terminal a request for assistance in determining a position estimate for the target terminal, to obtain ranging information suitable for determining the position estimate for the target terminal, and to send a response with the ranging information; and
a memory coupled to the at least one processor. - View Dependent Claims (24, 25, 26, 27)
-
-
28. A method of comprising:
-
receiving at a ranging terminal a request for assistance in determining a position estimate for a target terminal;
obtaining ranging information suitable for determining the position estimate for the target terminal; and
sending a response with the ranging information. - View Dependent Claims (29)
-
-
30. An apparatus comprising:
-
means for receiving at a ranging terminal a request for assistance in determining a position estimate for a target terminal;
means for obtaining ranging information suitable for determining the position estimate for the target terminal; and
means for sending a response with the ranging information. - View Dependent Claims (31)
-
-
32. An apparatus comprising:
-
at least one processor configured to receive at least one response from at least one ranging terminal for a request sent by a target terminal for assistance in determining a position estimate for the target terminal, and to determine the position estimate for the target terminal based on the at least one response from the at least one ranging terminal, wherein each response includes ranging information suitable for determining the position estimate for the target terminal; and
a memory coupled to the at least one processor. - View Dependent Claims (33, 34, 35, 36, 37, 38)
-
-
39. An apparatus comprising:
-
means for receiving at least one response from at least one ranging terminal for a request sent by a target terminal for assistance in determining a position estimate for the target terminal, wherein each response includes ranging information suitable for determining the position estimate for the target terminal; and
means for determining the position estimate for the target terminal based on the at least one response from the at least one ranging terminal. - View Dependent Claims (40)
-
Specification