HSPA（高速分组接入技术）是WCDMA 旳强化版本，通俗来说算是3.5G网络，包括HSDPA和HSUPA。HSDPA理论最高上行384Kbps，理论最高下行14.4Mbps。
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高速下行分组接入技术 HSDPA ; High Speed Downlink Packet Access ; High Speed Data Packet Access
高速下行分组接入（HSDPA）和演变数据优化（EV-DO）等3G的最新加强技术进步迅速。
And the latest enhancements of 3G technology, such as HSDPA and EV-DO, are improving fast.
混合自动重传请求是高速下行分组接入(HSDPA)和高速上行分组接入(HSUPA)中的关键技术。
It is one of the key techniques in the high speed downlink packet access (HSDPA) and high speed uplink packet access (HSUPA).
高速下行分组接入(HSDPA)作为WCDMA的增强技术，大大提高了下行数据速率。
As an enhanced technology of WCDMA, HSDPA has greatly increased the transmission rate of downstream data.
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