1. According to the current 3GPP division, 5G NR mainly includes two major spectrum ranges. The 450MHz-6000MHz frequency range is FR1, which is often referred to as Sub-6GHz, and the 24250MHz-52600MHz frequency range is FR2, which is often referred to as millimeter wave; 2. FR1 includes 26 frequency bands from n1/n2/n3, FR2 includes three frequency bands n257, n258, mn260, and currently mainly used at home and abroad are 7 frequency bands n1/n3/n28/n41/n77/n78/n79 . 3. The main frequency bands of domestic 5G networks are that China Telecom and China Unicom use the n78 frequency band, while China Mobile uses the n41 and n79. Therefore, the 5G mobile phones released in the domestic market support these frequency bands to meet the requirements.
