æè¿è©±é¡ã®Wi-Fi 6ïŒIEEE 802.11axïŒæè¡ã«å¯Ÿå¿ããæ©åšãåžå Žã«ç»å ŽããŠããŸãã ããããæ°äžä»£ã® Wi-Fi ãã¯ãããžãŒãWi-Fi 7 (IEEE 802.11be) ã®éçºããã§ã«é²è¡äžã§ããããšãç¥ã£ãŠãã人ã¯ã»ãšãã©ããŸããã Wi-Fi 7 ãã©ã®ãããªãã®ã«ãªãã®ãã¯ããã®èšäºã§ã芧ãã ããã
èæ¯
2020 幎 30 æã«ãç§ãã¡ã®ç掻ã«å€§ããªåœ±é¿ãäžãã IEEE 802.11 ãããžã§ã¯ãã® 802.11 åšå¹Žãç¥ããŸãã çŸåšãIEEE 4 èŠæ Œãã¡ããªãŒã§å®çŸ©ãããŠãã Wi-Fi ãã¯ãããžãŒã¯ãã€ã³ã¿ãŒããããžã®æ¥ç¶ã«äœ¿çšãããæãäžè¬çãªã¯ã€ã€ã¬ã¹ ãã¯ãããžãŒã§ããããŠãŒã¶ãŒ ãã©ãã£ãã¯ã®åå以äžã Wi-Fi ãæ ã£ãŠããŸãã æºåž¯é»è©±æè¡ã¯ 5G ãã 802.11G ã«ååã眮ãæãããªã©ãXNUMX 幎ããšã«ãã©ã³ãåãå€æŽããŠããŸãããWi-Fi ãŠãŒã¶ãŒã«ãšã£ãŠã¯ãããŒã¿é床ã®åäžãæ°ãããµãŒãã¹ãæ°æ©èœã®å°å ¥ã¯ã»ãšãã©æ°ã¥ãããã«è¡ãããŠããŸãã æ©åšã®ç®±ã«ãããXNUMXãã®åŸã«ç¶ããnãããacãããŸãã¯ãaxãã®æåãæ°ã«ãã顧客ã¯ã»ãšãã©ããŸããã ãããããã㯠Wi-Fi ãé²åããŠããªããšããæå³ã§ã¯ãããŸããã
Wi-Fi ã®é²åã®èšŒæ ã® 2 ã€ã¯ãå®æ ŒããŒã¿é床ã®åçãªåäžã§ãã1997 幎ããŒãžã§ã³ã® 10 Mbps ãããWi-Fi 802.11 ãšããŠãç¥ãããææ°ã® 6ax æšæºã§ã¯ã»ãŒ XNUMX Gbps ã«ãŸã§å¢å ããŠããŸããææ°ã® Wi-Fi ã¯ããã®é床ã«å°éããŠããŸããããé«éãªä¿¡å·ãšã³ãŒãã®èšèšãããå¹
åºããã£ãã«ããã¯ãããžãŒã®äœ¿çšã«ããããã©ãŒãã³ã¹ã®åäž
äž»æµã®é«éã¯ã€ã€ã¬ã¹ ããŒã«ã« ãšãªã¢ ãããã¯ãŒã¯ã«å ããŠãWi-Fi ã®é²åã«ã¯ããã€ãã®ããããªãããžã§ã¯ããå«ãŸããŠããŸãã ããšãã°ãWi-Fi HaLow (802.11ah) ã¯ãWi-Fi ãã¯ã€ã€ã¬ã¹ ã¢ãã®ã€ã³ã¿ãŒãããåžå Žã«å°å ¥ããè©Šã¿ã§ããã ããªæ³¢ Wi-Fi (802.11ad/ay) ã¯ãéåžžã«çãè·é¢ã§ãã£ãŠããæ倧 275 Gbps ã®å ¬ç§°ããŒã¿ ã¬ãŒãããµããŒãããŸãã
é«è§£å床ãã㪠ã¹ããªãŒãã³ã°ãä»®æ³çŸå®ãšæ¡åŒµçŸå®ãã²ãŒã ããªã¢ãŒã ãªãã£ã¹ãã¯ã©ãŠã ã³ã³ãã¥ãŒãã£ã³ã°ã«é¢é£ããæ°ããã¢ããªã±ãŒã·ã§ã³ãšãµãŒãã¹ãããã³ã¯ã€ã€ã¬ã¹ ãããã¯ãŒã¯äžã®æ¿ãããã©ãã£ãã¯ã䌎ãå€æ°ã®ãŠãŒã¶ãŒããµããŒãããå¿ èŠæ§ã«ã¯ãé«ãããã©ãŒãã³ã¹ãå¿ èŠã§ãã
Wi-Fi 7 ã®ç®æš
2019 幎 802.11 æãããŒã«ã«ããã³ã¡ããããªã¿ã³ ãšãªã¢ ãããã¯ãŒã¯æšæºå§å¡äŒã® XNUMX ã¯ãŒãã³ã° ã°ã«ãŒãã® BE (TGbe) ãµãã°ã«ãŒãã¯ãWi-Fi æšæºãžã®æ°ããªè¿œå ã«åããäœæ¥ãéå§ããŸããã å ¬ç§°ã¹ã«ãŒãããã¯æ倧 40 Gbit/s ä»¥äž ãäžè¬çãªãWi-Fi ç¯å² <= 7 GHz ã® 30 ã€ã®åšæ³¢æ°ãã£ãã«ã§ã å€ãã®ææžã«ã¯ãå°ãªããšã 40 Gbps ã®æ倧ã¹ã«ãŒãããããèšèŒãããŠããŸãããæ°ããç©çå±€ãããã³ã«ã¯ XNUMX Gbps ãè¶ ããå ¬ç§°é床ãæäŸããŸãã
Wi-Fi 7 ã®ãã XNUMX ã€ã®éèŠãªéçºæ¹åã¯ã ãªã¢ã«ã¿ã€ã ã¢ããªã±ãŒã·ã§ã³ã®ãµããŒã (ã²ãŒã ãä»®æ³çŸå®ãšæ¡åŒµçŸå®ãããããå¶åŸ¡)ã Wi-Fi ã¯ãªãŒãã£ãªãšãããªã®ãã©ãã£ãã¯ãç¹å¥ãªæ¹æ³ã§åŠçããŸãããWi-Fi ãããã¯ãŒã¯ã§ã¯æéã«ææãªãããã¯ãŒãã³ã°ãšãåŒã°ãããæšæºã¬ãã«ã§ä¿èšŒãããäœé 延 (ããªç§) ãæäŸããããšãåºæ¬çã«éèŠã§ãããšé·ãéèããããŠããããšã¯æ³šç®ã«å€ããŸããäžå¯èœã 2017 幎 802.11 æãIITP RAS ãšåœç«ç 究倧åŠé«ççµæžåŠéšã®ããŒã (PR ãšããŠåãåããªãã§ãã ãã) ããIEEE 2018 ã°ã«ãŒãã§å¯Ÿå¿ããææ¡ãè¡ããŸããã ãã®ææ¡ã¯å€ãã®é¢å¿ãéãããã®åé¡ãããã«ç 究ããããã« 802.11 幎 7 æã«ç¹å¥ãµãã°ã«ãŒããçºè¶³ããŸããã ãªã¢ã«ã¿ã€ã ã¢ããªã±ãŒã·ã§ã³ã®ãµããŒãã«ã¯ãé«ãå ¬ç§°ããŒã¿ ã¬ãŒããšåŒ·åããããªã³ã¯å±€æ©èœã®äž¡æ¹ãå¿ èŠã§ãããããXNUMX ã¯ãŒãã³ã° ã°ã«ãŒãã¯ãWi-Fi XNUMX å ã§ãªã¢ã«ã¿ã€ã ã¢ããªã±ãŒã·ã§ã³ããµããŒãããæ¹æ³ãéçºããããšã決å®ããŸããã
Wi-Fi 7 ã®éèŠãªåé¡ã¯ã4GPP ã«ãã£ãŠéçºãããåãã©ã€ã»ã³ã¹äžèŠã®åšæ³¢æ°åž¯åã§åäœããã»ã«ã©ãŒ ãããã¯ãŒã¯ ãã¯ãããžãŒ (5G/3G) ãšã®å ±åã§ãã LTE-LAA/NR-Uã«ã€ããŠè©±ããŠããŸãã Wi-Fi ãšã»ã«ã©ãŒ ãããã¯ãŒã¯ã®å ±åã«é¢é£ããåé¡ãç 究ããããã«ãIEEE 802.11 ã¯å ±ååžžèšå§å¡äŒ (Coex SC) ãç«ã¡äžããŸããã 3 幎 802.11 æã«ãŠã£ãŒã³ã§å€æ°ã®äŒè°ãéå¬ããã2019GPP ãš IEEE 802 åå è ã®å ±åã¯ãŒã¯ã·ã§ãããéå¬ãããã«ãããããããæè¡çãœãªã¥ãŒã·ã§ã³ã¯ãŸã æ¿èªãããŠããŸããã ãã®ç¡çãã«ã€ããŠèãããã説æã¯ãIEEE 3 ãš XNUMXGPP ã®äž¡æ¹ããäºãã®ãã¯ãããžãŒã«æºæ ããããã«ç¬èªã®ãã¯ãããžãŒãå€æŽããããšã«æ¶æ¥µçã§ãããšããããšã§ãã ãããã£ãŠã Coex SC ã®è°è«ã Wi-Fi 7 èŠæ Œã«åœ±é¿ãäžãããã©ããã¯çŸæç¹ã§ã¯äžæã§ã.
éçºå·¥çš
Wi-Fi 7 ã®éçºããã»ã¹ã¯éåžžã«åæ段éã«ãããŸããããããŸã§ã«ãIEEE 500be ãšããŠãç¥ããã次æ Wi-Fi 7 ã®æ°æ©èœã«ã€ã㊠802.11 件è¿ãã®ææ¡ãè¡ãããŠããŸãã ã»ãšãã©ã®ã¢ã€ãã¢ã¯ be ãµãã°ã«ãŒãã§è°è«ãããŠãããšããã§ããããŸã 決å®ãããŠããŸããã ä»ã®ã¢ã€ãã¢ãæè¿æ¿èªãããŸããã 以äžã«ãã©ã®ææ¡ãæ¿èªãããã©ã®ææ¡ãè°è«ãããŠããã ãã§ããããæ確ã«ç€ºããŸãã
åœåã¯2021幎2024æãŸã§ã«äž»èŠãªæ°æ©æ§ã®éçºãå®äºããäºå®ã ã£ãã ãã®èŠæ Œã®æçµããŒãžã§ã³ã¯ 2020 幎åé ãŸã§ã«å®æããäºå®ã§ãã 11幎2021æã1beã¯çŸåšã®äœæ¥ããŒã¹ã§éçºãäºå®éãã«é²ããã©ããã«ã€ããŠæžå¿µãè¡šæããã æšæºéçºããã»ã¹ãã¹ããŒãã¢ããããããã«ããµãã°ã«ãŒãã¯ã2 幎ãŸã§ã«ãªãªãŒã¹ã§ããåªå
床ã®é«ãæ©èœã®å°æ°ã®ã»ãã (ãªãªãŒã¹ 320) ãéžæããæ®ãã¯ãªãªãŒã¹ 4 ã®ãŸãŸã«ããããšã«åæããŸãããåªå
床ã®é«ãæ©èœã¯ãäž»ãªããã©ãŒãã³ã¹ã®åäžãããããã¯ãã§ãã 6 MHzã16K-QAMãWi-Fi XNUMX ããã® OFDMA ãžã®æãããªæ¹åãXNUMX ã¹ããªãŒã ã® MU-MIMO ã®ãµããŒããå«ãŸããŠããŸãã
ã³ãããŠã€ã«ã¹ã®åœ±é¿ã§ãã°ã«ãŒãã¯çŸåšçŽæ¥äŒãããšã¯ãªããå®æçã«é»è©±äŒè°ãéå¬ããŠããã ãããã£ãŠãéçºã¯ããããæžéããŸããããåæ¢ããŸããã§ããã
æè¡è©³çŽ°
Wi-Fi 7 ã®äž»ãªé©æ°ãèŠãŠã¿ãŸãããã
- æ°ããç©çå±€ãããã³ã«ã¯ãWi-Fi 6 ãããã³ã«ã XNUMX åã«æ¡åŒµããŠéçºãããã®ã§ãã æ倧 320 MHz ã®åž¯åå¹ ã空é MU-MIMO ã¹ããªãŒã æ°ã® XNUMX åããã«ãããå ¬ç§°ã¹ã«ãŒãããã 2Ã2 = 4 åå¢å ããŸãã Wi-Fi 7 ãå€èª¿ã®äœ¿çšãéå§ 4K-QAMããã«ãããå ¬ç§°ã¹ã«ãŒããããããã« 20% å¢å ããŸãã ãããã£ãŠãWi-Fi 7 㯠Wi-Fi 2 ã®å®æ ŒããŒã¿ ã¬ãŒãã® 2x1,2x4,8 = 6 åãæäŸããŸããWi-Fi 7 ã®æ倧å®æ Œã¹ã«ãŒããã㯠9,6 Gbps x 4,8 = 46 Gbit/s ã§ãã ããã«ãWi-Fi ã®å°æ¥ã®ããŒãžã§ã³ãšã®äºææ§ã確ä¿ããããã«ãç©çå±€ãããã³ã«ã«é©åœçãªå€æŽãå ããããŸããããŠãŒã¶ãŒã«ã¯ãããèŠããªããŸãŸã«ãªããŸãã
- ãã£ã³ãã«ã¢ã¯ã»ã¹æ¹æ³ãå€æŽãã ãªã¢ã«ã¿ã€ã ã¢ããªã±ãŒã·ã§ã³ã®ãµããŒã æç·ãããã¯ãŒã¯ã® IEEE 802 TSN ã®çµéšãèæ ®ããŠå®è¡ãããŸãã æšæºå§å¡äŒã§é²è¡äžã®è°è«ã¯ããã£ãã« ã¢ã¯ã»ã¹ã®ã©ã³ãã ããã¯ãªãæé ããã©ãã£ã㯠ãµãŒãã¹ ã«ããŽãªããããã£ãŠãªã¢ã«ã¿ã€ã ãã©ãã£ãã¯ã®åå¥ã®ãã¥ãŒãããã³ãã±ãã ãµãŒãã¹ ããªã·ãŒã«é¢é£ããŠããŸãã
- Wi-Fi 6 (802.11ax) ã§å°å ¥ çŽäº€åšæ³¢æ°åå²å€å â æéåå²ããã³åšæ³¢æ°åå²ãã£ãã« ã¢ã¯ã»ã¹æ¹åŒ (4G ããã³ 5G ãããã¯ãŒã¯ã§äœ¿çšãããŠãããã®ãšåæ§) â æé©ãªãªãœãŒã¹å²ãåœãŠã®ããã®æ°ããªæ©äŒãæäŸããŸãã ãã ãã11ax ã§ã¯ãOFDMA ã¯ååãªæè»æ§ããããŸããã ãŸããã¢ã¯ã»ã¹ ãã€ã³ãããæå®ã®ãµã€ãºã®ãªãœãŒã¹ ãããã¯ã 6 ã€ã ãã¯ã©ã€ã¢ã³ã ããã€ã¹ã«å²ãåœãŠãããšãã§ããŸãã 第 11 ã«ãã¯ã©ã€ã¢ã³ã ã¹ããŒã·ã§ã³éã®çŽæ¥éä¿¡ã¯ãµããŒããããŠããŸããã ã©ã¡ãã®æ¬ ç¹ãã¹ãã¯ãã«å¹çãäœäžãããŸãã ããã«ãåŸæ¥ã® Wi-Fi XNUMX OFDMA ã«ã¯æè»æ§ããªããããé«å¯åºŠãããã¯ãŒã¯ã§ã¯ããã©ãŒãã³ã¹ãäœäžãããªã¢ã«ã¿ã€ã ã¢ããªã±ãŒã·ã§ã³ã«ãšã£ãŠéèŠãªé 延ãå¢å ããŸãã XNUMXbe ã¯ãããã® OFDMA ã®åé¡ã解決ããŸãã
- Wi-Fi 7 ã§ç¢ºèªãããŠããé©åœçãªå€æŽã® XNUMX ã€ã¯ããã€ãã£ã ãµããŒãã§ãã ç°ãªãåšæ³¢æ°ã§ã®è€æ°ã®äžŠåæ¥ç¶ã®åæ䜿çšããã¯ã巚倧ãªããŒã¿ ã¬ãŒããšéåžžã«äœãé 延ã®äž¡æ¹ã«éåžžã«åœ¹ç«ã¡ãŸãã ææ°ã®ãããã»ããã¯ãã§ã«ãããšãã° 2.4 GHz ããã³ 5 GHz 垯åã§è€æ°ã®æ¥ç¶ãåæã«äœ¿çšã§ããŸããããããã®æ¥ç¶ã¯ç¬ç«ããŠããããããã®ãããªæäœã®æå¹æ§ã¯å¶éãããŸãã 11be ã§ã¯ããã£ãã« ãªãœãŒã¹ã®å¹ççãªäœ¿çšãå¯èœã«ãããã£ãã« ã¢ã¯ã»ã¹ ãããã³ã«ã®ã«ãŒã«ã«å€§å¹ ãªå€æŽã䌎ããã£ãã«éã®åæã¬ãã«ãèŠã€ãããŸãã
- éåžžã«å¹ ã®åºããã£ãã«ãšå€æ°ã®ç©ºéã¹ããªãŒã ã䜿çšãããšãMIMO ããã³ OFDMA ã«å¿ èŠãªãã£ãã«ç¶æ æšå®æé ã«é¢é£ããé«ããªãŒããŒãããã®åé¡ãçºçããŸãã ãã®ãªãŒããŒãããã«ãããå ¬ç§°ããŒã¿ ã¬ãŒãã®å¢å ã«ããå©çãçžæ®ºãããŸãã ãããæåŸ ããŠããŸãã ãã£ãã«ç¶æ ã®è©äŸ¡æé ãæ¹èšãããŸã.
- Wi-Fi 7 ã«é¢é£ããŠãæšæºå§å¡äŒã¯ããã€ãã®ãé«åºŠãªãããŒã¿è»¢éæ¹æ³ã®äœ¿çšã«ã€ããŠè°è«ããŠããŸãã çè«çã«ã¯ããããã®æ¹æ³ã¯ãåãæ¹åãŸãã¯å察æ¹åãžã®åæéä¿¡ã ãã§ãªããç¹°ãè¿ãéä¿¡ãè©Šè¡ããå Žåã®ã¹ãã¯ãã«å¹çãåäžãããŸãã ç§ãã¡ã¯ãçŸåšæºåž¯é»è©±ãããã¯ãŒã¯ãå
šäºéã¢ãŒããããã³éçŽäº€å€å
æ¥ç¶ (NOMA) ã§äœ¿çšãããŠãããã€ããªããèªååéèŠæ± (HARQ) ã«ã€ããŠè©±ããŠããŸãã ãããã®ãã¯ããã¯ã¯çè«çã«ã¯æç®ã§ããç 究ãããŠããŸãããããã«ãã£ãŠããããããçç£æ§ã®åäžããããããå®è£
ããåªåã«å€ãããã©ããã¯ãŸã æããã§ã¯ãããŸããã
- äœ¿çš ãã«ã¯ 次ã®åé¡ã«ããè€éã«ãªããŸãã Wi-Fi ã§ã¯ããªãŒããŒããããåæžããããã«ãã±ãããçµåãããŸãã çŸåšã®ããŒãžã§ã³ã® Wi-Fi ã§ã¯ãæ¥çããããã±ããå ã®åãã±ããã®é ä¿¡ã確èªããã確èªãåŸãããªãå Žåã¯ããã£ãã« ã¢ã¯ã»ã¹ ãããã³ã«æ¹åŒã䜿çšããŠãã±ããã®éä¿¡ãç¹°ãè¿ãããŸãã HARQ ã¯åè©Šè¡ãããŒã¿ ãªã³ã¯ããç©çå±€ã«ç§»åããŸããç©çå±€ã«ã¯ãã±ããã¯ååšãããã³ãŒãã¯ãŒãã®ã¿ãååšããã³ãŒãã¯ãŒãã®å¢çã¯ãã±ããã®å¢çãšäžèŽããŸããã ãã®éåæã«ãããWi-Fi ã§ã® HARQ ã®å®è£ ãè€éã«ãªããŸãã
- é¢ããŠã¯ å šäºéã®çŸåšãã»ã«ã©ãŒ ãããã¯ãŒã¯ã§ã Wi-Fi ãããã¯ãŒã¯ã§ããã¢ã¯ã»ã¹ ãã€ã³ã (åºå°å±) ãšã®éã§åãåšæ³¢æ°ãã£ãã«ã§ããŒã¿ãåæã«éä¿¡ããããšã¯ã§ããŸããã æè¡çãªèŠ³ç¹ããèŠããšãããã¯éä¿¡ä¿¡å·ãšåä¿¡ä¿¡å·ã®ãã¯ãŒã®å·®ã倧ããããã§ãã åä¿¡ä¿¡å·ããéä¿¡ä¿¡å·ãæžç®ããããžã¿ã«ãšã¢ããã°ãçµã¿åãããéä¿¡äžã« Wi-Fi ä¿¡å·ãåä¿¡ã§ãããããã¿ã€ãããããŸãããå®éã«æäŸã§ããå©åŸã¯ãåžžã«ç¡èŠã§ãããã®ã«ãªãå¯èœæ§ããããŸããäžæµã¯äžææµãšçãããããŸããïŒå¹³åããŠãç é¢å ãã§ã¯äžæµæµã®æ¹ãå€§å¹ ã«å€§ãããªããŸãïŒã ããã«ããã®ãããªåæ¹åäŒéã¯ãããã³ã«ãå€§å¹ ã«è€éåããŸãã
- MIMO ã䜿çšããŠè€æ°ã®ã¹ããªãŒã ãéä¿¡ããã«ã¯ãéä¿¡è ãšåä¿¡è ã«è€æ°ã®ã¢ã³ãããå¿ èŠã§ãããéçŽäº€ã¢ã¯ã»ã¹ã§ã¯ãã¢ã¯ã»ã¹ ãã€ã³ã㯠5 ã€ã®ã¢ã³ãããã XNUMX 人ã®åä¿¡è ã«åæã«ããŒã¿ãéä¿¡ã§ããŸãã ææ°ã® XNUMXG ä»æ§ã«ã¯ãããŸããŸãªéçŽäº€ã¢ã¯ã»ã¹ ãªãã·ã§ã³ãå«ãŸããŠããŸãã ãããã¿ã€ã ãã Wi-Fi 㯠2018 幎㫠IITP RAS ã§åããŠäœæãããŸãã (ç¹°ãè¿ãã«ãªããŸãããPR ãšã¯èããªãã§ãã ãã)ã 30 ïœ 40% ã®ããã©ãŒãã³ã¹ã®åäžãå®èšŒãããŸããã éçºããããã¯ãããžãŒã®å©ç¹ã¯ãäžäœäºææ§ã§ãã7 ã€ã®åä¿¡è ã®ãã¡ 2020 ã€ã¯ãWi-Fi XNUMX ããµããŒãããŠããªãå€ãããã€ã¹ã§ããå¯èœæ§ããããŸããäžè¬ã«ãç°ãªãäžä»£ã®ããã€ã¹ãåæã«åäœã§ãããããäžäœäºææ§ã®åé¡ã¯éåžžã«éèŠã§ãã Wi-Fi ãããã¯ãŒã¯äžã§ã çŸåšãäžçäžã®ããã€ãã®ããŒã ã NOMA ãš MU-MIMO ã®äœµçšã®æå¹æ§ãåæããŠããããã®çµæããã®ã¢ãããŒãã®å°æ¥ã®éåœã決å®ããŸãã ãŸãããããã¿ã€ãã®éçºãç¶ç¶ããŠããã次ã®ããŒãžã§ã³ã¯ XNUMX 幎 XNUMX æã® IEEE INFOCOM ã«ã³ãã¡ã¬ã³ã¹ã§çºè¡šãããäºå®ã§ãã
- æåŸã«ããã XNUMX ã€ã®éèŠãªã€ãããŒã·ã§ã³ã§ãããéåœã¯äžéæã§ãã ã¢ã¯ã»ã¹ãã€ã³ãã®é£æºéçšã å€ãã®ãã³ããŒã¯ãšã³ã¿ãŒãã©ã€ãº Wi-Fi ãããã¯ãŒã¯çšã«ç¬èªã®éäžã³ã³ãããŒã©ãŒãæã£ãŠããŸããããã®ãããªã³ã³ãããŒã©ãŒã®æ©èœã¯éåžžãé·æçãªãã©ã¡ãŒã¿ãŒæ§æãšãã£ãã«éžæã«éå®ãããŠããŸãã æšæºå§å¡äŒã¯ã調æŽãããéä¿¡ã¹ã±ãžã¥ãŒãªã³ã°ãããŒã ãã©ãŒãã³ã°ãããã«ã¯åæ£å MIMO ã·ã¹ãã ãªã©ãé£æ¥ããã¢ã¯ã»ã¹ ãã€ã³ãéã®ç·å¯ãªé£æºã«ã€ããŠè°è«ããŠããŸãã æ€èšäžã®ã¢ãããŒãã®äžã«ã¯ãé次干æžé€å» (NOMA ãšã»ãŒåã) ã䜿çšãããã®ããããŸãã 11be 調æŽã®ã¢ãããŒãã¯ãŸã éçºãããŠããŸãããããã®èŠæ Œã«ãããç°ãªãã¡ãŒã«ãŒã®ã¢ã¯ã»ã¹ ãã€ã³ããçžäºã®éä¿¡ã¹ã±ãžã¥ãŒã«ã調æŽããŠçžäºå¹²æžã軜æžã§ããããã«ãªãã®ã¯ééããããŸããã ãã®ä»ã®ããè€éãªã¢ãããŒã (åæ£å MU-MIMO ãªã©) ãæšæºã«å®è£ ããã®ã¯ããå°é£ã«ãªããŸãããã°ã«ãŒãã®äžéšã®ã¡ã³ããŒã¯ãªãªãŒã¹ 2 å ã§å®è£ ããããšã決æããŠããŸããçµæã«é¢ä¿ãªããã¢ã¯ã»ã¹ ãã€ã³ã調æŽæ¹æ³ã®éåœã¯æ±ºãŸããŸããã¯äžæã§ãã èŠæ Œã«å«ãŸããŠããŠãåžå Žã«æµéããªãå¯èœæ§ããããŸãã 以åãHCCA (11e) ã HCCA TXOP Negotiation (11be) ãªã©ã®ãœãªã¥ãŒã·ã§ã³ã䜿çšã㊠Wi-Fi éä¿¡ã«ç§©åºãããããããšãããšãã«ãåæ§ã®ããšãèµ·ãããŸããã
èŠçŽãããšãæåã® 7 ã€ã®ã°ã«ãŒãã«é¢é£ããææ¡ã®ã»ãšãã©ã¯ Wi-Fi XNUMX ã®äžéšãšãªãäžæ¹ãæåŸã® XNUMX ã€ã®ã°ã«ãŒãã«é¢é£ããææ¡ã¯ããã®æå¹æ§ã蚌æããããã«å€§å¹ ãªè¿œå 調æ»ãå¿ èŠã«ãªãããã§ãã
æè¡çãªè©³çŽ°
Wi-Fi 7 ã«é¢ããæè¡çãªè©³çŽ°ãèªãããšãã§ããŸã
åºæïŒ habr.com