Saudi operator STC said it has successfully demonstrated new radio (NR) time division duplex (TDD) and frequency division duplex (FDD) carrier aggregation (CA) using Ericsson Spectrum Sharing (ESS) in FDD band and on a single MediaTek Dimensity 5G chipset. It established a 5G non-standalone (NSA) data call by aggregating 20MHz on FDD spectrum (shared with LTE using ESS) and 100 MHz on TDD spectrum in live network conditions in Riyadh.
Additionally, NSA Dual Connectivity was enabled in order to aggregate two more LTE carriers using 40 MHz total bandwidth. It said combining NR FDD 700 MHz with NR TDD 3.6 GHz provides benefits in both coverage and capacity enhancements.
Using NR FDD 700MHz with Ericsson Spectrum Sharing (ESS) enables spectrum sharing between 5G NR and LTE for more efficiency and NR coverage extension of mid-band TDD. The tests showed that aggregating 5G connections can provide users with greater throughput and enables STC efficiently to manage 5G higher capacity.
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