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DNB and 2nd 5G network: needed or not?
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culain99
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 Apr 30 2025, 11:15 AM
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What are all the 5G bands active locally right now? Different websites give different data... really confusing. Do we actually have N26 850mhz active?, most websites list it. And is our N28 700mhz....N28a or N28b? 4G anchor frequency B28a or B28b?
Where/how to confirm this?
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Bands 5G
n26 (850), n28a (700), n28b (700), n78 (3500), n257 mmWave (28GHz)
Bands 4G
B1 (2100), B3 (1800), B5 (850), B7 (2600), B8 (900), B20 (800), B28a (700), B28b (700), B38 (TDD 2600), B40 (TDD 2300)
Bands 2G
B3 (1800), B8 (900)
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culain99
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May 4 2025, 06:04 PM
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QUOTE(OfficiallyAhmad @ May 4 2025, 03:15 PM) For Malaysia 5G, we officially use B28(a and b) and N78 only. Any proof of B28b frequency being used? B28a yes I check thru apps giving tower earfcn few locations (phone used to check support a/b both) |
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culain99
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May 4 2025, 07:12 PM
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QUOTE(OfficiallyAhmad @ May 4 2025, 06:55 PM) The proof is we use 758 Mhz – 778MHz for downlink and 703MHz – 723MHz for uplink for the B28. Technically we don't use subdivisions of B28a or B28b, we use 20MHz of B28. So if the phone only support half of B28, the phone can't connect to Malaysia 5G NSA since B28a or B28b subdivision only support 15MHz of bandwidth. Here the references for B28a and B28b: • 28A: 703-718 MHz (Uplink) and 758-773 MHz (Downlink) • 28B: 718-748 MHz (Uplink) and 773-803 MHz (Downlink) Base on your statement no china local market phone being import and sold here which support b28a only cannot connect to 5G here. Yet they are being sold online and in shops...and seller confirm can work with 5G here. Anyway I have only seen b28 earfcn 9310, which should be 713/768 mhz (if no mistake in online calculators)... which fall under b28a. Anyone connect to tower with different earfcn for b28.... please post here. |
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culain99
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May 4 2025, 07:27 PM
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QUOTE(OfficiallyAhmad @ May 4 2025, 07:15 PM) Is there any examples of China phone that only have B28a that can connect to Malaysia 5G NSA? You can refer kimovil for redmi (k50,k60,70,turbo 3, turbo 4), Oneplus ( ace pro, ace 2, ace 2 pro etc). Realme and others local china market phones. GSMarena does not give breakdown of b28a/b28b. global models will have listed full b28 on kimovil This post has been edited by culain99: May 4 2025, 07:30 PM |
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culain99
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May 4 2025, 07:35 PM
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QUOTE(OfficiallyAhmad @ May 4 2025, 07:32 PM) I learn new things today, and yeah you are right that I'm also referring to GSMarena for the B28a and B28b frequency range info. My mistake. Thank you for the clarification. No problem, if anyone connect to b28 tower with earfcn other than 9310....please update here. |
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