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Which of the following 3G standard is used in Japan?

(a) Cdma2000

(b) TD-SCDMA

(c) UMTS

(d) UTRA

I have been asked this question in homework.

My enquiry is from Third Generation (3G) Wireless Networks topic in chapter Modern Wireless Communication Systems of Wireless/Mobile

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Correct answer is (c) UMTS

For explanation I would say: Japan uses UMTS (W-CDMA) standard for its 3G network. The standards used are UMTS 800, UMTS 900, UMTS 1500, UMTS 1700 and UMTS 2100. They are standardized by ARIB (Association of Radio industries and Business).

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