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高速下行封包接入 （High Speed Downlink Packet Access，縮寫為 HSDPA）是一種 行動通訊 協定，又稱為 3.5G （3½G），屬於 W-CDMA 技術的延伸。. 該協定在 W-CDMA 下行鏈路中提供 封包資料 業務，在一個5MHz 載波 上的傳輸速率可達8-10 Mbit/s（如採用 MIMO 技術，則可達20 Mbit/s ...
High Speed Downlink Packet Access (HSDPA) is an enhanced 3G (third-generation) mobile communications protocol in the High-Speed Packet Access (HSPA) family. HSDPA is also known as 3.5G and 3G+. It allows networks based on the Universal Mobile
高速分組接入（英語： High Speed Packet Access，縮寫：HSPA），是W-CDMA第一個進化技術，HSPA可增加資料傳輸速率（1－3Mbps），可減少延遲。HSPA 由HSDPA、HSUPA組成，隨後還有HSPA+的推出。HSPA+在3GPP release 7中定義。
高速下行分组接入（ High Speed Downlink Packet Access，縮寫為 HSDPA ）是一种移动通信协议，又称为3.5G（3½G），属于W-CDMA技术的延伸。 该协议在 W-CDMA 下行链路中提供 分组数据 业务，在一个5MHz 载波 上的传输速率可达8-10 Mbit/s（如采用 MIMO 技术，则可达20 Mbit/s
高速下行链路分组接入（HSDPA，High Speed Downlink Packet Access）是R5规范中包含的关键新特性，是一些无线增强技术的集合，利用HSDPA技术可以在现有技术的基础上使下行数据峰值速率有很大的提高。
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What is an HSDPA USB modem?
What is high speed downlink packet access (HSDPA)?
What is HSPA (High Speed Packet Access)?
What is HSDPA & how does it work?
An HSDPA USB modem is a small external device that allows a computer with a USB port to connect to high-speed 3G wireless networks. 3G networks are high-speed networks often maintained by cellular service providers to allow cell phone handsets to access the Internet.
ZTE is the manufacturer of the MF622 HSDPA USB modem and has provided the information on its features and use set out in this user guide. The contents are believed to be correct at the time of going to press, but any information, products or services mentioned may be modified, supplemented or withdrawn.
