Communication method for wireless fidelity wi-fi system and apparatus
OwnerBaoyu Sun, Yongli Yan +1inventors
InventorsBaoyu Sun, Yongli Yan, Wei Ruan
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Abstract
This application provides a communication method for a wireless fidelity Wi-Fi system and an apparatus, and relates to the field of communication technologies, to improve an anti-interference capability of an IoT device, and improve a coverage capability and a wall penetration capability. The communication method for a wireless fidelity Wi-Fi system includes: generating a Wi-Fi frame including a preamble, where a synchronization sequence of the preamble includes at least one extension code, and the extension code includes N symbols generated based on a Barker code, where N=α*M, M is a chip length of the Barker code, and α is a positive integer; and transmitting the Wi-Fi frame.
Claims20
A communication method for a wireless fidelity Wi-Fi system, comprising:
- generating a Wi-Fi frame comprising a preamble, wherein a synchronization sequence of the preamble comprises at least one extension code, and the extension code comprises N symbols generated based on a Barker code, wherein N-α*M, M is a chip length of the Barker code, and a is a positive integer;
- and
- transmitting the Wi-Fi frame.
A communication method for a wireless fidelity Wi-Fi system, comprising:
- generating a Wi-Fi frame comprising a PSDU, wherein the PSDU comprises an extension header and a payload, the payload comprises a plurality of data code blocks, each data code block comprises a coding field and a check field, and the extension header indicates one or more pieces of the following information:
- a length of the payload, a coding scheme and a modulation scheme of the coding field, and a type of the check field;
- performing channel coding on the data code blocks by using the coding scheme;
- performing rate matching on data code blocks obtained through the channel coding;
- modulating data code blocks obtained through the rate matching based on the modulation scheme, wherein the modulation scheme comprises differential modulation;
- and
- transmitting the modulated data code blocks.
A communication method for a wireless fidelity Wi-Fi system, comprising:
- receiving a Wi-Fi frame, wherein a synchronization sequence of a preamble of the Wi-Fi frame comprises at least one extension code, and the extension code comprises N symbols generated based on a Barker code, wherein N=α*M, M is a chip length of the Barker code, and a is a positive integer;
- and
- despreading the Wi-Fi frame based on the Barker code, to obtain the synchronization sequence in the preamble.
Dependencies are inferred from the claim text.