System and method for providing simulated hardware-in-the-loop testing of wireless communications networks
First Claim
1. A system for testing a wireless network of transceivers, comprising:
- an optical modulator, adapted to modulate optical energy with signal energy propagating from a first group of said transceivers of said network to form a vector of optical signals;
an optical matrix-vector multiplier (MVM), adapted to receive said vector of optical signals, and having a matrix of optical channel weights which are modifiable in accordance with desired parameters to simulate at least one parameter of said wireless network, said optical MVM being further adapted to output signals based on said received vector of optical signals and said optical channel weights;
a detector device, adapted to detect said output signals and to provide said output signals as an output vector of signals to a second group of transceivers of said network; and
a delay device, adapted to impose respective delays on each of said output signals before said output signals are received by said detector device.
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Abstract
A system and method for efficiently and effectively simulating hardware-in-the-loop testing of a wireless communications network. The system and method employs an optical matrix-vector multiplier (MVM) for performing optical signal processing to simulate radio frequency (RF) signal propagation characteristics in a mobile wireless communications network. Specifically, the system and method employs an optical modulator, which is adapted to modulate optical energy with signal energy, such as radio frequency (RF) signal energy, propagating from a first group of transceivers of the network to form a vector of optical signals. The optical matrix-vector multiplier (MVM) receives the vector of optical signals, and has a matrix of optical channel weights which are modifiable in accordance with desired parameters to represent at least on parameter of the wireless network. The optical MVM is further adapted to output signals based on the received vector of optical signals and the optical channel weights. The system and method further employs a detector device, adapted to detect the output signals and to provide the output signals as an output vector of signals to a second group of transceivers of the network.
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Citations
24 Claims
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1. A system for testing a wireless network of transceivers, comprising:
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an optical modulator, adapted to modulate optical energy with signal energy propagating from a first group of said transceivers of said network to form a vector of optical signals; an optical matrix-vector multiplier (MVM), adapted to receive said vector of optical signals, and having a matrix of optical channel weights which are modifiable in accordance with desired parameters to simulate at least one parameter of said wireless network, said optical MVM being further adapted to output signals based on said received vector of optical signals and said optical channel weights; a detector device, adapted to detect said output signals and to provide said output signals as an output vector of signals to a second group of transceivers of said network; and a delay device, adapted to impose respective delays on each of said output signals before said output signals are received by said detector device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for testing a wireless network of transceivers, comprising:
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modulating optical energy with signal energy propagating from a first group of said transceivers of said network to form a vector of optical signals; receiving said vector of optical signals at an optical matrix-vector multiplier (MVM) having a matrix of optical channel weights which are modifiable in accordance with desired parameters to simulate at least one parameter of said wireless network; outputting output signals from said optical MVM based on said received vector of optical signals and said optical channel weights; detecting said output signals and to provide said output signals as an output vector of signals to a second group of transceivers of said network; and imposing respective delays on each of said output signals before said output signals are detected by said detecting. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification