Reliable dual sub-carrier modulation schemes in high efficiency WLAN

  • US 10,616,017 B2
  • Filed: 05/25/2016
  • Issued: 04/07/2020
  • Est. Priority Date: 05/26/2015
  • Status: Active Grant
First Claim
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1. A method comprising:

  • encoding a data packet to be transmitted from a source station to a destination station in a wireless local area network, wherein the data packet comprises one or more signaling (SIG) fields and a data field;

    inserting a Dual Carrier Modulation (DCM) indication bit that indicates whether DCM is applied in one of the fields;

    modulating and mapping encoded bits of a field over a first sub-carrier using a first mapping scheme, and modulating and mapping the same encoded bits over a second sub-carrier using a second mapping scheme 4 when DCM is applied for the field; and

    generating the data packet with the DCM indication bit and transmitting the data packet to the destination station, wherein the data packet is either a single-user (SU) PPDU having a SIG-A field comprises the DCM indication bit indicating whether DCM is applied for the data field, or a multi-user (MU) PPDU having a SIG-A field followed by a SIG-B field.

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