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.
本发明减轻了下行信令负荷，增加了基于高速下行分组接入的数据传输的灵活性。
This invention reduces the down loading, improves the agility of the data transmission based on high speed down grouped connection.
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.
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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