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METHOD AND DEVICE FOR TRANSFERRING DATA FROM WIRELESS LAN TO PLURALITY OF STAS

  • US 20160301451A1
  • Filed: 06/19/2014
  • Published: 10/13/2016
  • Est. Priority Date: 12/14/2013
  • Status: Active Grant
First Claim
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1. A method of transmitting data to a plurality of stations (STAs) in a wireless local area network (LAN), the method comprising:

  • generating, by an access point (AP), a multiple input multiple output (MIMO)-orthogonal frequency division multiple access (OFDMA) format physical layer convergence procedure (PLCP) protocol data unit (PPDU) comprising a plurality of sub-channel format PPDUs, wherein the plurality of sub-channel format PPDUs are transmitted through a plurality of sub-channel bands, wherein each of the plurality of sub-channel format PPDUs comprises a signal field and at least one training field for MIMO transmission, wherein the number of the at least one training field is determined based on a maximum value of the number of spatial streams for the sub-channel format PPDUs, wherein the signal field indicates the number of the at least one training field; and

    transmitting, by the AP, the MIMO-OFDMA format PPDU to the plurality of STAs,wherein the number of training fields for MIMO transmission and included respectively in the plurality of sub-channel format PPDUs is identical.

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