3gbkingcom 2021 May 2026

However, in 2021, most countries had already moved to 4G or 5G, so 3G might have been in the process of being phased out. China's telecom companies might have been decommissioning 3G networks in favor of higher generations. For example, China Unicom might have completed 3G decommissioning by 2021. Let me verify the timeline: China Unicom shut down its 3G network in December 2021. So if the paper is about that event, it could discuss the reasons, impact on consumers, strategies employed, etc.