Systems and methods for low power wake up signal and operations for WLAN
First Claim
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1. An apparatus for wirelessly communicating with a wireless station, the apparatus comprising:
- a first transceiver comprising a first receiver, and configured to receive a backoff signal from the wireless station during a first time period, the backoff signal configured to indicate a second time period;
a processor operationally coupled to the first transceiver and configured to refrain the first transceiver from transmitting a wireless signal during the second time period,the first receiver further configured to wirelessly receive data packets at a first transmission bandwidth and consume power at a first power level during operation; and
a second receiver operationally coupled to the first receiver and configured to detect a wake-up signal received from the wireless station, the second receiver configured to consume power during operation at a second power level that is less than the first power level, andwherein the processor is operationally coupled to the first receiver and the second receiver and configured to wake up the first receiver when the second receiver successfully detects the wake-up signal, and to determine a recurring time period based on an association with the wireless station,wherein a second transmission bandwidth of the wake-up signal is less than the first transmission bandwidth, and wherein the second receiver is configured to detect the wake-up signal via a wireless channel, a bandwidth of the wireless channel being less than the first transmission bandwidth, andwherein the second receiver is further configured to detect the wake-up signal based on the recurring time period.
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Abstract
Systems, methods, and devices for wireless communication. In one aspect an apparatus for wirelessly communicating with a wireless station is provided. The apparatus comprises a first transceiver configured to receive a backoff signal from the wireless station during a first time period, the backoff signal configured to indicate a second time period. The apparatus further comprises a processor operationally coupled to the first transceiver and configured to refrain the first transceiver from transmitting a wireless signal during the second time period.
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Citations
70 Claims
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1. An apparatus for wirelessly communicating with a wireless station, the apparatus comprising:
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a first transceiver comprising a first receiver, and configured to receive a backoff signal from the wireless station during a first time period, the backoff signal configured to indicate a second time period; a processor operationally coupled to the first transceiver and configured to refrain the first transceiver from transmitting a wireless signal during the second time period, the first receiver further configured to wirelessly receive data packets at a first transmission bandwidth and consume power at a first power level during operation; and a second receiver operationally coupled to the first receiver and configured to detect a wake-up signal received from the wireless station, the second receiver configured to consume power during operation at a second power level that is less than the first power level, and wherein the processor is operationally coupled to the first receiver and the second receiver and configured to wake up the first receiver when the second receiver successfully detects the wake-up signal, and to determine a recurring time period based on an association with the wireless station, wherein a second transmission bandwidth of the wake-up signal is less than the first transmission bandwidth, and wherein the second receiver is configured to detect the wake-up signal via a wireless channel, a bandwidth of the wireless channel being less than the first transmission bandwidth, and wherein the second receiver is further configured to detect the wake-up signal based on the recurring time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. An apparatus for wirelessly communicating with a wireless first transceiver, a second transceiver and a second wireless receiver via a wireless medium, the apparatus comprising:
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a processor configured to; determine a back-off time period based, at least in part, on a phase-locked loop (PLL) converge time and calibration coefficients of the second wireless receiver and a duration of a low power wake up signal; generate a clear to send (CTS) frame configured to indicate the first transceiver defers an access to the wireless medium during the back-off time period; and a transmitter operationally coupled to the processor and configured to; transmit data packets to the first transceiver at a first transmission bandwidth; transmit clear to send (CTS) frame to the first transceiver, and transmit the low power wakeup signal to the second receiver on a wireless channel with a second transmission bandwidth less than the first transmission bandwidth, the wakeup signal configured to wake up the first second transceiver. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method of wirelessly communicating with a wireless station, the method comprising:
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receiving, at a first receiver, data packets at a first transmission bandwidth, the first receiver configured to consume power at a first power level during operation; receiving, at the first receiver, a backoff signal from the wireless station during a first time period, the backoff signal configured to indicate a second time period; refraining, at a processor operationally coupled to the first receiver, from transmitting a wireless signal during the second time period; detecting, at a second receiver operationally coupled to the first receiver, a wake-up signal received from the wireless station, the second receiver configured to consume power during operation at a second power level that is less than the first power level; and waking, via the processor, the first receiver when the second receiver successfully detects the wake-up signal, wherein the processor is operationally coupled to the second receiver; determining, via the processor, a recurring time period based on an association with the wireless station, wherein a second transmission bandwidth of the wake-up signal is less than the first transmission bandwidth, and wherein the second receiver is configured to detect the wake-up signal via a wireless channel, a bandwidth of the wireless channel being less than the first transmission bandwidth, wherein detecting the wake-up signal comprises detecting the wake-up signal based on the recurring time period. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. A method of wirelessly communicating with a wireless first transceiver, a second transceiver and a second wireless receiver via a wireless medium, the method comprising:
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transmitting data packets to the first transceiver over a first transmission bandwidth; determining a back-off time period based, at least in part, on a phase-locked loop (PLL) converge time and calibration coefficients of the second wireless receiver and a duration of a low power wake up signal; generating a clear to send (CTS) frame configured to indicate a time period to the first transceiver such that the first transceiver defers an access to the wireless medium during the time period; transmitting the clear to send (CTS) frame to the first transceiver; transmitting the low power wake-up signal to the second receiver via a wireless channel with a second transmission bandwidth less than the first transmission bandwidth, the wake-up signal configured to wakeup the second transceiver. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
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Specification