METHODS AND SYSTEMS FOR ENHANCED ROUND TRIP TIME (RTT) EXCHANGE
First Claim
Patent Images
1. A method comprising, at a first wireless transceiver device:
- transmitting a fine timing measurement request message to a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission from the second wireless transceiver in response to receipt of the fine timing measurement request message at the second wireless transceiver device.
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Abstract
Disclosed are systems, methods and devices for obtaining round trip time measurements for use in location based services. In particular implementations, a fine timing measurement request message wirelessly transmitted by a first transceiver device to a second transceiver device may permit additional processing features in computing or applying a signal round trip time measurement. Such a signal round trip time measurement may be used in positioning operations.
52 Citations
72 Claims
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1. A method comprising, at a first wireless transceiver device:
transmitting a fine timing measurement request message to a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission from the second wireless transceiver in response to receipt of the fine timing measurement request message at the second wireless transceiver device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A first wireless transceiver device comprising:
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a transceiver to transmit messages to and receive messages from a wireless communication network; and one or more processors to initiate transmission of a fine timing measurement request message through said transceiver to a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission from the second wireless transceiver in response to receipt of the fine timing measurement request message at the second wireless transceiver device. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. An article comprising:
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A non-transitory storage medium comprising machine-readable instructions stored thereon which are executable by a special purpose computing apparatus of a first wireless transceiver device to; initiate transmission of a fine timing measurement request message to a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission from the second wireless transceiver in response to receipt of the fine timing measurement request message at the second wireless transceiver device. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A first wireless transceiver device comprising:
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means for transmitting a fine timing measurement request message to a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission from the second wireless transceiver in response to receipt of the fine timing measurement request message at the second wireless transceiver device; and means for receiving from said second transceiver device one or more fine timing measurement request frames transmitted based, at least in part, on said at least one field. - View Dependent Claims (50, 51, 52, 53, 54)
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55. A method comprising, at a first wireless transceiver device:
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receiving a fine timing measurement request message from a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission; and in response to receipt of said fine timing measurement request message, transmitting one or more bursts of fine timing measurement messages to said second wireless transceiver device based, at least in part, on said at least one field. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62)
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63. A first wireless transceiver device comprising:
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a transceiver to transmit messages to and receive messages from a wireless communication network; and one or more processors to; obtain a fine timing measurement request message received at said transceiver from a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission; and in response to receipt of said fine timing measurement request message, initiate transmission of one or more bursts of fine timing measurement messages through said transceiver to said second wireless transceiver device based, at least in part, on said at least one field.
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- 66. The first wireless transceiver device of claim 66, wherein the one or more bursts of fine timing measurement messages are transmitted such that a number of fine timing measurement messages are transmitted in said burst based, at least in part, on a field of the at least one field.
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71. An article comprising:
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a non-transitory storage medium comprising machine-readable instructions stored thereon which are executable by a special purpose computing apparatus of a first wireless transceiver device to; obtain a fine timing measurement request message received at said first wireless transceiver device from a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission; and in response to receipt of said fine timing measurement request message, initiate transmission of one or more bursts of fine timing measurement messages to said second wireless transceiver device based, at least in part, on said at least one field.
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72. A first wireless transceiver device comprising:
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means for receiving a fine timing measurement request message from a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission; and means for transmitting one or more bursts of fine timing measurement messages to said second wireless transceiver device in response to receipt of said fine timing measurement request message based, at least in part, on said at least one field.
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Specification