Method and Apparatus for Generating a Physical Layer (PHY) Data Unit for Hybrid Automatic Repeat Request (HARQ)
First Claim
1. A method for generating a physical layer (PHY) data unit for transmission in a wireless local area network (WLAN), the method comprising:
- determining, at a communication device, that the PHY data unit is to be transmitted according to a hybrid automatic repeat request (HARQ) process;
generating, at a communication device, a PHY data portion of the PHY data unit, wherein generating the PHY data portion comprises, for each of a plurality of PHY protocol service data units (PSDUs) to be included in the PHY data unit and in response to determining that the PHY data unit is to be transmitted according to the HARQ process;
selecting a segment boundary within a last-occurring orthogonal frequency division (OFDM) symbol from among a set of multiple segment boundaries,adding pre-forward error correction (pre-FEC) padding bits to the PSDU such that, after encoding the PSDU according to a forward error correction (FEC) code, coded bits of the PSDU end on the selected segment boundary, andindividually encoding the PSDU according to the FEC code;
generating, at a communication device, a PHY preamble, wherein generating the PHY preamble comprises, in response to determining that the PHY data unit is to be transmitted according to the HARQ process;
generating the PHY preamble to include a plurality of indications of a plurality of durations of the respective PSDUs within the PHY data portion.
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Accused Products
Abstract
A communication device generates a physical layer (PHY) data portion of a PHY data unit, including, for each of a plurality of PHY protocol service data units (PSDUs) to be included in the PHY data unit: selecting a segment boundary within a last-occurring orthogonal frequency division (OFDM) symbol from among a set of multiple segment boundaries, adding pre-forward error correction (pre-FEC) padding bits to the PSDU such that, after encoding the PSDU according to a forward error correction (FEC) code, coded bits of the PSDU end on the selected segment boundary, and individually encoding the PSDU according to the FEC code. The communication device generates a PHY preamble, which includes generating the PHY preamble to include a plurality of indications of a plurality of durations of the respective PSDUs within the PHY data portion.
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Citations
16 Claims
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1. A method for generating a physical layer (PHY) data unit for transmission in a wireless local area network (WLAN), the method comprising:
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determining, at a communication device, that the PHY data unit is to be transmitted according to a hybrid automatic repeat request (HARQ) process; generating, at a communication device, a PHY data portion of the PHY data unit, wherein generating the PHY data portion comprises, for each of a plurality of PHY protocol service data units (PSDUs) to be included in the PHY data unit and in response to determining that the PHY data unit is to be transmitted according to the HARQ process; selecting a segment boundary within a last-occurring orthogonal frequency division (OFDM) symbol from among a set of multiple segment boundaries, adding pre-forward error correction (pre-FEC) padding bits to the PSDU such that, after encoding the PSDU according to a forward error correction (FEC) code, coded bits of the PSDU end on the selected segment boundary, and individually encoding the PSDU according to the FEC code; generating, at a communication device, a PHY preamble, wherein generating the PHY preamble comprises, in response to determining that the PHY data unit is to be transmitted according to the HARQ process; generating the PHY preamble to include a plurality of indications of a plurality of durations of the respective PSDUs within the PHY data portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless communication device, comprising:
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a network interface device associated with a first communication device, wherein the network interface device is implemented on one or more integrated circuit (IC) devices, and wherein the one or more IC devices are configured to; determine that the PHY data unit is to be transmitted according to a hybrid automatic repeat request (HARQ) process, and generate a PHY data portion of the PHY data unit, wherein generating the PHY data portion comprises, for each of a plurality of PHY protocol service data units (PSDUs) to be included in the PHY data unit and in response to determining that the PHY data unit is to be transmitted according to the HARQ process; selecting a segment boundary within a last-occurring orthogonal frequency division (OFDM) symbol from among a set of multiple segment boundaries, adding pre-forward error correction (pre-FEC) padding bits to the PSDU such that, after encoding the PSDU according to a forward error correction (FEC) code, coded bits of the PSDU end at the selected segment boundary, and individually encoding the PSDU according to the FEC code; wherein the one or more IC devices are further configured to generate a PHY preamble, wherein generating the PHY preamble comprises, in response to determining that the PHY data unit is to be transmitted according to the HARQ process; generating the PHY preamble to include a plurality of indications of a plurality of durations of the respective PSDUs within the PHY data portion. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification