Physical layer low power communication method and apparatus
First Claim
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1. A physical layer low power communication method performed by a receiver, the method comprising:
- receiving a data packet from a transmitter;
measuring a channel quality using a preamble and signal field information included in the data packet and determining whether recovery of the data packet is possible based on the measured channel quality;
calculating an error generation rate according to a determination result; and
when the error generation rate is higher than a predetermined reference, discarding the data packet and operating in a power save mode,wherein the discarding the data packet and operating in the power save mode comprises;
confirming a length of the data packet and a data rate using the signal field information;
calculating a transmission time of the data packet based on the length of the data packet and the data rate; and
operating in the power save mode for the transmission time.
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Abstract
A physical layer low power communication method and apparatus are provided. The physical layer low power communication method may include receiving a data packet from a transmitter, measuring a channel quality using a preamble and signal field information included in the data packet and determining whether recovery of the data packet is possible, calculating an error generation rate according to a determination result, and discarding the data packet and operating in a power save mode when the error generation rate is higher than a predetermined reference.
44 Citations
16 Claims
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1. A physical layer low power communication method performed by a receiver, the method comprising:
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receiving a data packet from a transmitter; measuring a channel quality using a preamble and signal field information included in the data packet and determining whether recovery of the data packet is possible based on the measured channel quality; calculating an error generation rate according to a determination result; and when the error generation rate is higher than a predetermined reference, discarding the data packet and operating in a power save mode, wherein the discarding the data packet and operating in the power save mode comprises; confirming a length of the data packet and a data rate using the signal field information; calculating a transmission time of the data packet based on the length of the data packet and the data rate; and operating in the power save mode for the transmission time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A physical layer low power communication method performed by a transmitter, the method comprising:
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transmitting a data packet to a receiver; receiving a response control frame from the receiver when the data packet is not normally received by the receiver; and changing a data transmission method to a transmission method of a next data packet to be transmitted, the transmission method of the next data packet being included in the response control frame, wherein the receiver determines whether to receive the data packet by measuring a channel quality using a preamble and signal field information included in the data packet, determining whether recovery of the data packet is possible based on the measured channel quality, calculating an error generation rate according to a determination result, determining whether the error generation rate is higher than a predetermined reference, and, when the error generation rate is higher than a predetermined reference, discarding the data packet and operating in a power save mode, and wherein the discarding the data packet and operating in the power save mode comprises; confirming a length of the data packet and a data rate using the signal field information; calculating a transmission time of the data packet based on the length of the data packet and the data rate; and operating in the power save mode for the transmission time. - View Dependent Claims (12, 13, 14)
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15. A physical layer low power communication apparatus comprising:
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an antenna to receive and transmit signals; a transceiving unit to demodulate a received signal and modulate a transmission signal; a frontend module to function as an interface between the antenna and the transceiving unit; an analog-to-digital converter and digital-to-analog converter (ADC/DAC) to convert a signal type between an analog signal and a digital signal with respect to the received signal and the transmission signal; a baseband processor to generate a frame corresponding to a transmission frame format of the transmission signal; and a processor to determine whether to receive the signals and whether to operate in a power save mode by analyzing field information of the received signal, wherein the processor calculates an error generation rate related to recovery possibility of a data packet using a preamble and signal field information included in the data packet of the received signal, and, when the error generation rate is higher than a predetermined reference, discards the data packet and operates in the power save mode, wherein, to discard the data packet and to operate in the power save mode, the processor is configured to; confirm a length of the data packet and a data rate using the signal field information; calculate a transmission time of the data packet based on the length of the data packet and the data rate; and operate in the power save mode for the transmission time. - View Dependent Claims (16)
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Specification