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US 8,948,063 B2Granted
Method and system for real-time calibration and reporting of processing delay
AssigneeQUALCOMM Incorporated
InventorsBabak Aryan, Xiaoyin He, Mohammad Ali Tassoudji
Life of this patent
Estimating the term…
Abstract
The subject matter disclosed herein relates to a system and method for estimating transmit chain and receive chain processing delays by a first wireless device. In a particular implementation, a first signal may be wirelessly transmitted from a first wireless device and at least a portion of the first signal may be received by a receiver of the first wireless device during transmission of the first signal. A first transmit processing delay and a first receive processing delay associated with the first signal may be measured or determined based at least in part on the receipt of the at least a portion of the first signal during the transmission of the first signal.
Claims48
A method, comprising:
- forming a preamble and at least one data capsule at a first observed time measurement;
- wirelessly transmitting a first signal from a first wireless device at a second observed time measurement, wherein the first signal comprises the preamble and the at least one data capsule;
- receiving, by a receiver of the first wireless device at a third observed time measurement, at least a portion of the preamble of the first signal during transmission of the preamble of the first signal;
- measuring a combined first transmit chain and first receive chain delay of the first wireless device based at least in part on a calculated difference between the third and first observed time measurements during the transmission of the preamble of the first signal;
- and
- embedding a measurement of the combined first transmit chain and first receive chain delay of the first wireless device within the at least one data capsule of the first signal during the transmission of the preamble of the first signal, wherein the measurement is wirelessly transmitted within the at least one data capsule of the first signal.
3 more elements
An apparatus, comprising:
- a transmitter to wirelessly transmit a first signal at a first observed time measurement, wherein the first signal comprises a preamble and at least one data capsule;
- a receiver to receive at least a portion of the preamble of the first signal during transmission of the preamble of the first signal at a second observed time measurement;
- and
- a processor programmed with instructions to:
- form the preamble and the at least one data capsule at a third observed time measurement;
- estimate a combined first transmit chain and first receive chain delay of the apparatus based at least in part on a calculated difference between the third and second observed time measurements of the first signal during the transmission of the preamble of the first signal, and
- embed a measurement of the combined first transmit chain and first receive chain delay of the first wireless device within the at least one data capsule of the first signal during the transmission of the preamble of the first signal, wherein the measurement is wirelessly transmitted within the at least one data capsule of the first signal.
4 more elements
An apparatus, comprising:
- means for forming a preamble and at least one data capsule at a first observed time measurement;
- means for wirelessly transmitting a first signal at a second observed time measurement, wherein the first signal comprises the preamble and the at least one data capsule;
- means for receiving at least a portion of the preamble of the first signal during transmission of the preamble of the first signal at a third observed time measurement;
- means for estimating a combined first transmit chain and first receive chain delay of the apparatus based at least in part on a calculated difference between the third and first observed time measurements during the transmission of the preamble of the first signal;
- and
- means for embedding a measurement of the combined first transmit chain and first receive chain delay within the at least one data capsule of the first signal during the transmission of the preamble of the first signal, wherein the measurement is wirelessly transmitted within the at least one data capsule of the first signal.
3 more elements
An article comprising:
- a non-transitory storage medium having stored thereon instructions executable by a processor to:
- form a preamble and at least one data capsule at a first observed time measurement;
- transmit of a first signal from a first wireless device at a second observed time measurement, wherein the first signal comprises the preamble and at the least one data capsule;
- measure a combined first transmit chain and first receive chain delay of the first wireless device based at least in part on a calculated difference between the first observed time measurement and a third observed time measurement at which the at least a portion of the preamble is received by a receiver of a device comprising the article during the transmission of the preamble of the first signal;
- and
- embed a measurement of the combined first transmit chain and first receive chain delay of the first wireless device within the at least one data capsule during the transmission of the preamble of the first signal, wherein the measurement is wireles sly transmitted within the at least one data capsule of the first signal.
3 more elements
Dependencies are inferred from the claim text.