Enhanced codeword-based block acknowledgement for wi-fi
AssigneeIntel Corporation
InventorsLaurent Cariou, Robert Stacey
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Abstract
This disclosure describes systems, methods, and devices related to codeword-based acknowledgments in Wi-Fi. A device may generate low-density parity-check (LDPC) codewords, each having a same length; generate a first physical layer (PHY) protocol data unit (PPDU) including the LDPC codewords; transmit the first PPDU to a second device; identify an acknowledgment received from the second device, the acknowledgment including a bitmap indicating that a first LDPC codeword of the LDPC codewords was not received by the second device; generate, based on the bitmap, a second PPDU including the first LDPC codeword; and transmit the second PPDU to the second device.
Claims20
An apparatus of a device, the apparatus comprising processing circuitry coupled to storage, the processing circuitry configured to:
- generate low-density parity-check (LDPC) codewords, each having a same length;
- generate a first physical layer (PHY) protocol data unit (PPDU) comprising the LDPC codewords;
- transmit the first PPDU to a second device;
- identify an acknowledgment received from the second device, the acknowledgment comprising a bitmap indicating that a first LDPC codeword of the LDPC codewords was not received by the second device;
- generate, based on the bitmap, a second PPDU comprising the first LDPC codeword;
- and
- transmit the second PPDU to the second device.
A computer-readable storage medium comprising instructions to cause processing circuitry of a device, upon execution of the instructions by the processing circuitry, to:
- identify a first physical layer (PHY) protocol data unit (PPDU) received from a second device, the first PPDU comprising low-density parity-check (LDPC) codewords, each having a same length;
- determine that a first LDPC codeword of the LDPC codewords was not received by the device;
- generate a bitmap comprising an indication that the first LDPC codeword was not received by the device;
- generate an acknowledgment comprising the bitmap;
- transmit the bitmap the second device;
- and
- identify a second PPDU received from the second device, the second PPDU comprising the first LDPC codeword.
A method for using codeword-based acknowledgments, the method comprising:
- generating, by processing circuitry of a first device, low-density parity-check (LDPC) codewords, each having a same length;
- generating, by the processing circuitry, a first physical layer (PHY) protocol data unit (PPDU) comprising the LDPC codewords;
- transmitting, by the processing circuitry, the first PPDU to a second device;
- identifying, by the processing circuitry, an acknowledgment received from the second device, the acknowledgment comprising a bitmap indicating that a first LDPC codeword of the LDPC codewords was not received by the second device;
- generating, by the processing circuitry, based on the bitmap, a second PPDU comprising the first LDPC codeword;
- and
- transmitting, by the processing circuitry, the second PPDU to the second device.
Dependencies are inferred from the claim text.