Multi-carrier and direct-spread-spectrum are employed by CDMA2000 to support wideband data service.

CDMA2000采用多载波和直接序列扩频两种方式来达到提供宽带数据业务的目的。

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Multi-carrier and direct-spread-spectrum are employed by CDMA2000 to support wideband data service.

CDMA2000采用多载波和直接序列扩频两种方式来达到提供宽带数据业务的目的。

youdao