High-Speed Downlink Packet Access - WikipediaHigh-Speed Downlink Packet Access（HSDPA）ã¯ç¬¬3世代移動通信システム(3G) 通信プãƒãƒˆã‚³ãƒ«ã®ä¸€ç¨®ã§HSPAファミリーã®1ã¤ã§ã‚ã‚Šã€Universal Mobile Telecommunications System (UMTS) ã«åŸºã¥ããƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®ãƒ‡ãƒ¼ã‚¿è»¢é€é€Ÿåº¦ã¨å®¹é‡ã‚’改善ã™ã‚‹ã€‚3.5Gã€3G+ã€turbo 3G ãªã©ã¨ã‚‚。HSDPAã®ã‚µãƒãƒ¼ãƒˆã™ã‚‹ä¸‹ã‚Šè»¢é€é€Ÿåº¦ã¯ 1.8/3.6/7.2/14.4Mbit/s ã§ã‚る。HSPA+ã§ã¯ã•ã‚‰ã«é«˜é€Ÿãªãƒ‡ãƒ¼ã‚¿è»¢é€ã‚’実ç¾ã—ã¦ãŠã‚Šã€DC-HSDPAã§ã¯ä¸‹ã‚Šæœ€å¤§42Mbit/sã€UMTS Release 9 ã§ã¯ä¸‹ã‚Šæœ€å¤§84Mbit/sã¨ãªã£ã¦ã„ã‚‹[1]。 UMTS release 5 ã§ã€HSDPAã®ãŸã‚ã«æ–°ãŸãªãƒˆãƒ©ãƒ³ã‚¹ãƒãƒ¼ãƒˆå±¤ High-Speed Downlink Shared Channel (HS-D
CDMA2000 1x - Wikipedia
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