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Ç¥ÁعøÈ£ TTAE.IE-802.11ax-2021 ±¸Ç¥ÁعøÈ£
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ÇѱÛÇ¥ÁØ¸í °íÈ¿À² ¹«¼±·£À» À§ÇÑ Çâ»óµÈ MAC ¹× PHY °èÃþ ±Ô°Ý (IEEE Std 802.11ax-2021)
¿µ¹®Ç¥Áظí Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 6: Enhancements for High Efficiency WLAN (IEEE Std 802.11ax-2021)
Çѱ۳»¿ë¿ä¾à ÀÌ Ç¥ÁØÀº °¡Á¤ ¹× ±â¾÷ ȯ°æ¿¡¼­ÀÇ °íÈ¿À² ¹«¼±·£ ¼­ºñ½º¸¦ Á¦°øÇϱâ À§ÇÑ 6¼¼´ë ¹«¼±·£ Ç¥ÁØÀÌ´Ù. ±âÁ¸ ¹«¼±·£ Ç¥ÁØ ´ëºñ OFDMA (Orthogonal Frequency Division Multiple Access) ±â¼úÀ» ½Å±Ô·Î µµÀÔÇÏ¿© È¥ÀâÇÑ ¹«¼±·£ ȯ°æ¿¡¼­ÀÇ ¼º´ÉÀ» Çâ»ó½ÃÄ×´Ù. À̸¦ À§ÇØ ±âÁ¸ 64FFT (Fast Fourier Transform)/20MHz ±â¹ÝÀÇ OFDM (Orthogonal Frequency Division Modulation) Numerology¸¦ 256FFT/20MHz ·Î º¯°æÇÏ¿´°í, ÃÖ´ë 16 Spatial Stream Áö¿ø, 1024 QAM Áö¿ø, TWT (Target Wake Time) ±â´É, Spatial Reuse ±â´É µî ´Ù¾çÇÑ ¼º´É Çâ»ó ±â¼úµéÀÌ Æ÷ÇԵǾú´Ù.
¿µ¹®³»¿ë¿ä¾à IEEE 802.11ax-2021 or 802.11ax is an IEEE standard for wireless local-area networks (WLANs) and the successor of 802.11ac. The main goal of this standard is enhancing throughput-per-area in high-density scenarios, such as corporate offices, shopping malls and dense residential apartments. It is designed to operate in license-exempt bands between 1 and 7.125 GHz, including the 2.4 and 5 GHz bands already in common use as well as the much wider 6 GHz band (5.925–7.125 GHz in the US).
Specifically, it incorporates the following methods:
- Orthogonal Frequency-Division Multiple Access (OFDMA)
- Spatial Reuse: better power-control methods to avoid interference with neighboring networks
- Higher order 1024‑QAM modulation
- Target Wake Time : dependability improvements of power consumption
- DL/UL MU-MIMO: up-link direction added with the down-link of MIMO and MU-MIMO to further increase throughput
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°ü·ÃÆÄÀÏ TTAE.IE-802.11ax-2021.pdf TTAE.IE-802.11ax-2021.pdf            

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