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5G-Advanced (3GPP Rel-18/19) · Pro
Rel-19 significantly enhances carrier aggregation capabilities in NR. Inter-band CA for FR2 (mmWave) allows aggregation of multiple mmWave bands — for example, combining n257 (28 GHz) and n258 (26 GHz) carriers for peak rates exceeding 20 Gbps. This was previously limited to intra-band CA within a single mmWave band. The specification also increases the maximum number of component carriers from 16 to 32 in certain configurations, with up to 8 carriers active simultaneously. FR1+FR2 CA combinations are expanded, enabling mid-band coverage carriers to supplement mmWave capacity carriers within…
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