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Comparison of mobile phone standards - Wikipedia, the free ...
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日期：2026-04-18
In 3G, the most prevalent technology was UMTS with CDMA-2000 in close contention. All radio access ... CDMA: any speaker can talk at any time; however each uses a different language. Each listener can .... 3GPP Release 7. UMTS W-CDMA .... [show]. v &middo...看更多
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