Auto-detection of repeated signals
First Claim
1. A system comprising:
- circuitry configured to receive a frame comprising a first portion and a second portion, the first portion comprising a first signal field and a second signal field;
a detector configured to (i) determine a first decision metric component that is based on a hypothesis that the second signal field is a repeated version of the first signal field, (ii) determine a second decision metric component that is based on a hypothesis that the second signal field is not the repeated version of the first signal field, and (iii) make a determination, based on the first decision metric component and the second decision metric component, of whether the second signal field is the repeated version of the first signal field; and
a decoder coupled with the detector, the decoder configured to process the second portion of the frame in accordance with a first format responsive to the determination indicating that the second signal field is not the repeated version of the first signal field, and to decode the second portion of the frame in accordance with a second format responsive to the determination indicating that the second signal field is the repeated version of the first signal field.
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Accused Products
Abstract
Systems and techniques relating to repeated signal detection are described. A described system includes a receiver to receive a frame including first and second portions, the first portion including first and second signal fields; a detector to determine a first decision metric component based on a hypothesis that the second signal field is a repeated version of the first signal field, determine a second decision metric component based on a hypothesis that the second signal field is not the repeated version, and make a determination, based on the first and second decision metric components, of whether the second signal field is the repeated version; and a decoder to process the second portion in accordance with a first format if the second signal field is not the repeated version, and to decode the second portion in accordance with a second format if the second signal field is the repeated version.
33 Citations
20 Claims
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1. A system comprising:
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circuitry configured to receive a frame comprising a first portion and a second portion, the first portion comprising a first signal field and a second signal field; a detector configured to (i) determine a first decision metric component that is based on a hypothesis that the second signal field is a repeated version of the first signal field, (ii) determine a second decision metric component that is based on a hypothesis that the second signal field is not the repeated version of the first signal field, and (iii) make a determination, based on the first decision metric component and the second decision metric component, of whether the second signal field is the repeated version of the first signal field; and a decoder coupled with the detector, the decoder configured to process the second portion of the frame in accordance with a first format responsive to the determination indicating that the second signal field is not the repeated version of the first signal field, and to decode the second portion of the frame in accordance with a second format responsive to the determination indicating that the second signal field is the repeated version of the first signal field. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device comprising:
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a receiver configured to receive a frame comprising a first portion and a second portion, the first portion comprising a first signal field and a second signal field; and a processor coupled with the receiver, wherein the processor is programmed to determine a first decision metric component that is based on a hypothesis that the second signal field is a repeated version of the first signal field, and determine a second decision metric component that is based on a hypothesis that the second signal field is not the repeated version of the first signal field, wherein the processor is programmed to make a determination, based on the first decision metric component and the second decision metric component, of whether the second signal field is the repeated version of the first signal field, and wherein the processor is programmed to decode the second portion of the frame in accordance with a first format responsive to the determination indicating that the second signal field is not the repeated version of the first signal field, and to decode the second portion of the frame in accordance with a second format responsive to the determination indicating that the second signal field is the repeated version of the first signal field. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method comprising:
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receiving a frame comprising a first portion and a second portion, the first portion comprising a first signal field and a second signal field; determining a first decision metric component that is based on a hypothesis that the second signal field is a repeated version of the first signal field; determining a second decision metric component that is based on a hypothesis that the second signal field is not the repeated version of the first signal field; performing a determination, based on the first decision metric component and the second decision metric component, of whether the second signal field is the repeated version of the first signal field; and decoding the second portion of the frame in accordance with a first format or a second format, wherein the first format, is used for decoding based on the determination indicating that the second signal field is not the repeated version of the first signal field, and wherein the second format is used for decoding based on the determination indicating that the second signal field is the repeated version of the first signal field. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification