Methods and systems for enhanced round trip time (RTT) exchange
First Claim
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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 timing 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, wherein a field of the at least one field specifies a minimum time duration between transmission of consecutive fine timing measurement messages of the plurality of fine timing measurement messages in the burst of fine timing measurement messages.
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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.
23 Citations
27 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 timing 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, wherein a field of the at least one field specifies a minimum time duration between transmission of consecutive fine timing measurement messages of the plurality of fine timing measurement messages in the burst of fine timing measurement messages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. 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 configured to initiate transmission of a fine timing measurement request message through the transceiver to a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more timing 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, wherein a field of the at least one field specifies a minimum time duration between transmission of consecutive fine timing measurement messages of the plurality of fine timing measurement messages in the burst of fine timing measurement messages. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A first wireless transceiver device, comprising:
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 timing 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, wherein a field of the at least one field specifies a minimum time duration between transmission of consecutive fine timing measurement messages of the plurality of fine timing measurement messages in the burst of fine timing measurement messages. - View Dependent Claims (17)
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18. An article comprising:
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a non-transitory storage medium comprising computer-readable instructions stored thereon which are executable by a 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 timing 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, wherein a field of the at least one field specifies a minimum time duration between transmission of consecutive fine timing measurement messages of the plurality of fine timing measurement messages in the burst of fine timing measurement messages.
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19. 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 timing aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission, wherein a field of the at least one field specifies a minimum time duration between transmission of consecutive fine timing measurement messages of the plurality of fine timing measurement messages in the burst of fine timing measurement messages; and in response to receipt of the fine timing measurement request message, transmitting the plurality of fine timing measurement messages to the second wireless transceiver device based, at least in part, on the field of the at least one field specifying the minimum time duration between transmission of the consecutive fine timing measurement messages. - View Dependent Claims (20, 21, 22, 23, 24)
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25. 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 configured to; obtain a fine timing measurement request message received at the transceiver from a second wireless transceiver device, the fine timing measurement request message comprising at least one field specifying one or more timing aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission, wherein a field of the at least one field specifies a minimum time duration between transmission of consecutive fine timing measurement messages of the plurality of fine timing measurement messages in the burst of fine timing measurement messages; and in response to receipt of the fine timing measurement request message, initiate transmission, through the transceiver, of the plurality of fine timing measurement messages to the second wireless transceiver device based, at least in part, on the field of the at least one field specifying a minimum time duration between transmission of consecutive fine timing messages.
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26. 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 timing aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission, wherein a field of the at least one field specifies a minimum time duration between transmission of consecutive fine timing measurement messages of the plurality of fine timing measurement messages in the burst of fine timing measurement messages; and means for transmitting, in response to receipt of the fine timing measurement request message, the plurality of fine timing measurement messages to the second wireless transceiver device based, at least in part, on the field of the at least one field.
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27. An article comprising:
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a non-transitory storage medium comprising computer-readable instructions stored thereon which are executable by a computing apparatus of a first wireless transceiver device to; receive 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 timing aspects for transmission of a plurality of fine timing measurement messages in a burst of fine timing measurement messages requested for transmission, wherein a field of the at least one field specifies a minimum time duration between transmission of consecutive fine timing measurement messages of the plurality of fine timing measurement messages in the burst of fine timing measurement messages; and in response to receipt of the fine timing measurement request message, initiate transmission, of the plurality of fine timing measurement messages to the second wireless transceiver device based, at least in part, on the field of the at least one field specifying a minimum time duration between transmission of consecutive fine timing messages.
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Specification