Wireless local area network system and receiver adapted for use thereof and associated method
First Claim
1. A system comprising:
- a server;
a receiver that is part of a wireless network and is in communication with said server as a network client, the receiver comprising;
a plurality of radio frequency (RF) front-end circuits each configured to receive wireless signals from mobile nodes within a wireless network along an allocated channel for each front-end circuit;
a signal waveform detector circuit at each allocated channel configured to detect a signal waveform on the respective allocated channel and generate a trigger waveform indicative of information describing a desired signal to be captured, wherein the signal waveform detector circuit at each allocated channel is further configured to generate the trigger waveform, wherein the trigger waveform is indicative of modulation type, data format, and time-of-arrival (TOA) information of a desired signal to be captured; and
a plurality of processors each specific to an allocated channel and connected to a respective front-end circuit for the allocated channel, each processor being configured to receive a respective trigger waveform and, responsive to the trigger waveform, capture a desired signal specific to the respective allocated channel and acquire time-of-arrival (TOA) information for determining a location based on the captured desired signal, wherein the receiver is further configured to provide the TOA information to the server.
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Accused Products
Abstract
A wireless local area network (WLAN) includes a server and receiver in communication with the server as a network client. A plurality of radio frequency (RF) front-end circuits are each configured for receiving wireless signals from mobile nodes within the WLAN along an allocated channel specific for a front-end circuit. A plurality of baseband processors each specific to an allocated channel are connected to a respective front-end circuit for the allocated channel and capture a desired signal specific to the allocated channel. A system controller is connected to each baseband processor for configuring each baseband processor and processing the desired signal and obtaining message data and signal metrics for each allocated channel that are communicated to the server.
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Citations
28 Claims
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1. A system comprising:
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a server; a receiver that is part of a wireless network and is in communication with said server as a network client, the receiver comprising; a plurality of radio frequency (RF) front-end circuits each configured to receive wireless signals from mobile nodes within a wireless network along an allocated channel for each front-end circuit; a signal waveform detector circuit at each allocated channel configured to detect a signal waveform on the respective allocated channel and generate a trigger waveform indicative of information describing a desired signal to be captured, wherein the signal waveform detector circuit at each allocated channel is further configured to generate the trigger waveform, wherein the trigger waveform is indicative of modulation type, data format, and time-of-arrival (TOA) information of a desired signal to be captured; and a plurality of processors each specific to an allocated channel and connected to a respective front-end circuit for the allocated channel, each processor being configured to receive a respective trigger waveform and, responsive to the trigger waveform, capture a desired signal specific to the respective allocated channel and acquire time-of-arrival (TOA) information for determining a location based on the captured desired signal, wherein the receiver is further configured to provide the TOA information to the server. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a server; a receiver that is part of a wireless network and is in communication with said server as a network client, the receiver comprising; a plurality of radio frequency (RF) front-end circuits each configured to receive wireless signals from mobile nodes within a wireless network along an allocated channel for each front-end circuit; a signal waveform detector circuit at each allocated channel configured to detect a signal waveform on the respective allocated channel and generate a trigger waveform indicative of information describing a desired signal to be captured, wherein the trigger waveform is indicative of modulation type, data format, and time-of-arrival (TOA) information of a desired signal to be captured; a plurality of processors each specific to an allocated channel and connected to a respective front-end circuit for the allocated channel, each processor being configured to receive a respective trigger waveform and, responsive to the trigger waveform, capture a desired signal specific to the respective allocated channel and acquire time-of-arrival (TOA) information for determining a location based on the captured desired signal; and a plurality of TOA processors each specific to a respective allocated channel and RF front-end circuit, each TOA processor being configured to receive TOA information and generate a time stamp for the captured desired signal received in a respective allocated channel, wherein each TOA processor is configured to process TOA information when said receiver is part of a geometric array of networked nodes, determine first-to-arrive signals based on a common network timing signal, and conduct differentiation of the first-to-arrive signals to locate a desired wireless node; wherein the receiver is further configured to provide the TOA information to the server.
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11. A receiver comprising:
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a plurality of radio frequency (RF) front-end circuits each configured to receive wireless signals from mobile nodes within a wireless network along an allocated channel for each front-end circuit; a signal waveform detector circuit at each allocated channel configured to detect a signal waveform on the respective allocated channel and generate a trigger waveform indicative of information describing a desired signal to be captured, wherein the signal waveform detector circuit at each allocated channel is further configured to generate the trigger waveform, wherein the waveform is indicative of modulation type, data format, and time-of-arrival (TOA) information of a desired signal to be captured; and a plurality of processors each specific to an allocated channel and connected to a respective front-end circuit for the allocated channel, each processor being configured to receive a respective trigger waveform and, responsive to the trigger waveform, capture a desired signal specific to a respective allocated channel and acquire time-of-arrival (TOA) information for determining a location based on the captured desired signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A receiver comprising:
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a plurality of radio frequency (RF) front-end circuits each configured to receive wireless signals from mobile nodes within a wireless network along an allocated channel for each front-end circuit; a signal waveform detector circuit at each allocated channel configured to detect a signal waveform on the respective allocated channel and generate a trigger waveform indicative of information describing a desired signal to be captured, wherein the trigger waveform is indicative of modulation type, data format, and time-of-arrival (TOA) information of a desired signal to be captured; a plurality of processors each specific to an allocated channel and connected to a respective front-end circuit for the allocated channel, each processor being configured to receive a respective trigger waveform and, responsive to the trigger waveform, capture a desired signal specific to a respective allocated channel and acquire time-of-arrival (TOA) information for determining a location based on the captured desired signal; and a plurality of TOA processors each specific to a respective allocated channel and RF front-end circuit, each TOA processor being configured to receive TOA information and generate a time stamp for the captured desired signal received in an allocated channel, wherein each TOA processor is configured to process TOA information when said receiver is part of a geometric array of networked nodes, determine first-to-arrive signals based on a common network timing signal, and conduct differentiation of the first-to-arrive signals to locate a desired wireless node.
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22. A method comprising:
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receiving, at a receiver, wireless signals transmitted from mobile nodes within a wireless network along a plurality of allocated channels; detecting a signal waveform on each of the allocated channels; generating a trigger waveform indicative of information describing a desired signal to be captured, the waveform being indicative of modulation type, data format, and time-of-arrival (TOA) information of a desired signal to be captured; receive a respective trigger waveform; capturing desired signals within each allocated channel in response to receipt of the trigger waveform; and acquiring time-of-arrival (TOA) information for determining a location based on the captured desired signals. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification