Method for minimizing receive packet processing for a personal computer implementation of a wireless local area network adapter
First Claim
1. A method for the reduction of receive packet processing in a communications system receiver comprising the steps of:
- establishing a set of criteria which identifies a packet as one requiring demodulation;
detecting a packet preamble to trigger at least one waveform identification function;
determining with the at least one waveform identification function if said detected packet meets an established criteria for demodulation, the established criteria comprising at least one of data rate, modulation type, signal to noise ratio, or coding rate; and
interrupting a host processor to begin demodulation if said detected packet meets the established criteria for demodulation.
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Accused Products
Abstract
A method and wireless local area network (WLAN) adapter for the reduction of receive packet processing in a communications system receiver. The method includes establishing a set of criteria which identifies a packet as one requiring demodulation. The method further includes detecting a packet preamble to trigger at least one waveform identification function and determining with the at least one waveform identification function of the detected packet meets an established criteria for demodulation. The established criteria may include at least one of data rate, modulation type, signal to noise ratio, or coding rate. If the detected packet meets the established criteria for demodulation, a host processor may be interrupted to begin demodulation.
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Citations
18 Claims
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1. A method for the reduction of receive packet processing in a communications system receiver comprising the steps of:
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establishing a set of criteria which identifies a packet as one requiring demodulation; detecting a packet preamble to trigger at least one waveform identification function; determining with the at least one waveform identification function if said detected packet meets an established criteria for demodulation, the established criteria comprising at least one of data rate, modulation type, signal to noise ratio, or coding rate; and interrupting a host processor to begin demodulation if said detected packet meets the established criteria for demodulation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A wireless local area network (WLAN) adapter for use with a host processor, the WLAN adapter comprising:
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a receive amplifier; an analog-to-digital converter; and a baseband processor, wherein the adapter is configured to (i) analyze received data from the analog-to-digital converter to detect a packet preamble and to trigger at least one waveform identification function (ii) determine whether the data contains information destined for the host processor by using a waveform detector to determine that the detected packet meets an established criteria for demodulation the established criteria comprising at least one of data rate, modulation type, signal to noise ratio, or coding rate and (iii) selectively transfer samples to the host processor when the data contains information destined for the host processor. - View Dependent Claims (16, 17, 18)
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Specification