Low power operations in a wireless tunneling transceiver
First Claim
1. A full-duplex transceiver device for wirelessly tunneling communications between a first host device and a second host device while maintaining compliance of the communications between the first and second host devices with a wired communication protocol, the transceiver device comprising:
- a transmitter including;
a high frequency transmitting circuit operational in a high power state to receive transmit data from the first host device and to encode the transmit data in a first transmit baseband signal at a first data rate, the transmit data targeted for the second host device and compliant with the wired communication protocol, the high frequency transmitting circuit disabled in one or more low power states,a low frequency transmitting circuit operational in the one or more low power states to generate a second transmit baseband signal at a second data rate lower than the first data rate, the second transmit baseband signal comprising control information, andan up-converter circuit configured to;
receive the first transmit baseband signal and modulate the first transmit baseband signal onto a carrier signal to generate a first transmit wireless signal when in the high power state, andreceive the second transmit baseband signal and modulate the second transmit baseband signal onto the carrier signal to generate a second transmit wireless signal when in the one or more low power states;
a receiver including;
a down-converter circuit configured to receive a receive wireless signal and to demodulate the receive wireless signal to generate a receive baseband signal,a high frequency receiving circuit operational in the high power state to receive the receive baseband signal, the high frequency receiving circuit configured to decode the receive baseband signal to obtain receive data for providing to the first host device, the receive data compliant with the wired communication protocol, the high frequency receiving circuit disabled when in the one or more low power states, anda low frequency receiving circuit operational in the one or more low power states to;
receive the receive baseband signal,generate a control signal based on control information in the receive baseband signal, anddetermine an on-period of an envelope of the receive baseband signal based at least in part on an edge of the receive baseband signal; and
a state machine configured to;
control switching of the transceiver device between the high power state and the one or more low power states based in part on the control signal, andcontrol an operation state of the transceiver device based at least in part on a pulse width of the on-period of the envelope of the receive baseband signal.
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Accused Products
Abstract
A wireless tunneling system tunnels communications between a first host device and a second host device through a wireless link, while maintaining compliance of the communications between the first and second host devices with a wired communication protocol and operates in a power efficient manner. Two host devices may communicate with each other through a wireless link using the wireless tunneling system, as if two host devices were connected through the wired cable. The wireless tunneling system operates in one of a high power state and one or more low power states. In the high power state, the wireless tunneling system exchanges data at a higher data rate for tunneling. In the low power state, the wireless tunneling system disables power hungry components for conserving power.
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Citations
18 Claims
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1. A full-duplex transceiver device for wirelessly tunneling communications between a first host device and a second host device while maintaining compliance of the communications between the first and second host devices with a wired communication protocol, the transceiver device comprising:
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a transmitter including; a high frequency transmitting circuit operational in a high power state to receive transmit data from the first host device and to encode the transmit data in a first transmit baseband signal at a first data rate, the transmit data targeted for the second host device and compliant with the wired communication protocol, the high frequency transmitting circuit disabled in one or more low power states, a low frequency transmitting circuit operational in the one or more low power states to generate a second transmit baseband signal at a second data rate lower than the first data rate, the second transmit baseband signal comprising control information, and an up-converter circuit configured to; receive the first transmit baseband signal and modulate the first transmit baseband signal onto a carrier signal to generate a first transmit wireless signal when in the high power state, and receive the second transmit baseband signal and modulate the second transmit baseband signal onto the carrier signal to generate a second transmit wireless signal when in the one or more low power states; a receiver including; a down-converter circuit configured to receive a receive wireless signal and to demodulate the receive wireless signal to generate a receive baseband signal, a high frequency receiving circuit operational in the high power state to receive the receive baseband signal, the high frequency receiving circuit configured to decode the receive baseband signal to obtain receive data for providing to the first host device, the receive data compliant with the wired communication protocol, the high frequency receiving circuit disabled when in the one or more low power states, and a low frequency receiving circuit operational in the one or more low power states to; receive the receive baseband signal, generate a control signal based on control information in the receive baseband signal, and determine an on-period of an envelope of the receive baseband signal based at least in part on an edge of the receive baseband signal; and a state machine configured to; control switching of the transceiver device between the high power state and the one or more low power states based in part on the control signal, and control an operation state of the transceiver device based at least in part on a pulse width of the on-period of the envelope of the receive baseband signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for wirelessly tunneling communications between a first host device and a second host device while maintaining compliance of the communications between the first and second host devices with a wired communication protocol using a full-duplex transceiver, the method comprising:
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receiving, by a high frequency transmitting circuit when operating in a high power state, transmit data from the first host device; encoding, by the high frequency transmitting circuit, the transmit data in a first transmit baseband signal at a first data rate, the transmit data targeted for the second host device and compliant with the wired communication protocol; generating, by a low frequency transmitting circuit when operating in one or more low power states, a second transmit baseband signal at a second data rate lower than the first data rate, the second transmit baseband signal comprising control information; receiving, by an up-converter circuit, the first transmit baseband signal when in the high power state; modulating, by the up-converter circuit, the first transmit baseband signal onto a carrier signal to generate a first transmit wireless signal when in the high power state; receiving, by the up-converter circuit, the second transmit baseband signal when in the one or more power states; modulating, by the up-converter circuit, the second transmit baseband signal onto the carrier signal to generate a second transmit wireless signal when in the one or more low power states; receiving, by a down-converter circuit, a receive wireless signal; demodulating, by the down-converter circuit, the receive wireless signal to generate a receive baseband signal; decoding, by a high frequency receiving circuit operating in the high power state, the receive baseband signal to obtain receive data for providing to the first host device, the receive data compliant with the wired communication protocol; generating, by a low frequency receiving circuit operating in the one or more low power states, a control signal based on control information in the receive baseband signal; controlling, by a state machine, switching between the high power state and the one or more low power states based in part on the control signal; determining an on-period of an envelope of the receive baseband signal based at least in part on an edge of the receive baseband signal; and controlling an operation state of the transceiver based at least in part on a pulse width of the determined on-period of the envelope of the receive baseband signal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification