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本帖最后由 Vortex 于 2021-3-3 01:32 编辑
例如的sdm660系列的X12 LTE,骁龙X12 LTE理论上支撑下行600Mbps、上行150Mbps，通过下行三载波聚合（3x20MHz）和256-QAM，实现高达600 Mbps的下载峰值速度,然而大部分中端机器实际仅支撑 2cc
Nokia 7.2 (Global) (TA-1196) 4G Bands and Combos| Modem Specification | | Modem Model | Snapdragon X12 | | Release Year | 2019 | | LTE DL/UL Modulation | 256QAM / 64QAM | | LTE Bands | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41 | | LTE Category (DL/UL) | 13 / 5 | | LTE Max Speed (DL/UL) | 400 / 75 Mbps |
| DL Band/CA | DL MIMO (Streams) | UL Band/CA | | | | | 1-1 | 2+2 (4) | 1 | | 1 | 2 (2) | 1 | | 1C | 2+2 (4) | 1 | | 3-1 | 2+2 (4) | 1 | | 3-3 | 2+2 (4) | 3 | | 3 | 2 (2) | 3 | | 3-1 | 2+2 (4) | 3 | | 3B | 2+2 (4) | 3 | | 3C | 2+2 (4) | 3 | | 5-1 | 2+2 (4) | 1 | | 5-3 | 2+2 (4) | 3 | | 5-5 | 2+2 (4) | 5 | | 5 | 2 (2) | 5 | | 5-1 | 2+2 (4) | 5 | | 5-3 | 2+2 (4) | 5 | | 7-1 | 2+2 (4) | 1 | | 7-3 | 2+2 (4) | 3 | | 7-7 | 2+2 (4) | 7 | | 7 | 2 (2) | 7 | | 7-1 | 2+2 (4) | 7 | | 7-3 | 2+2 (4) | 7 | | 7B | 2+2 (4) | 7 | | 7C | 2+2 (4) | 7 | | 8-1 | 2+2 (4) | 1 | | 8 | 2 (2) | 8 | | 8-1 | 2+2 (4) | 8 | | 20-1 | 2+2 (4) | 1 | | 20-3 | 2+2 (4) | 3 | | 20-7 | 2+2 (4) | 7 | | 20 | 2 (2) | 20 | | 20-1 | 2+2 (4) | 20 | | 20-3 | 2+2 (4) | 20 | | 20-7 | 2+2 (4) | 20 | | 28-3 | 2+2 (4) | 3 | | 28-7 | 2+2 (4) | 7 | | 28 | 2 (2) | 28 | | 28-3 | 2+2 (4) | 28 | | 28-7 | 2+2 (4) | 28 | | 38-28 | 2+2 (4) | 28 | | 38 | 2 (2) | 38 | | 38C | 2+2 (4) | 38 | | 40-20 | 2+2 (4) | 20 | | 40-40 | 2+2 (4) | 40 | | 40 | 2 (2) | 40 | | 40C | 2+2 (4) | 40 | | 41 | 2 (2) | 41 |
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发表于 2021-3-3 01:25:00