RANsemi recently unveiled the RNS805‑RU‑BB, a cutting-edge integrated baseband board designed for the development of 5G and 4G Open RAN Radio Units (O‑RUs). This innovative board supports Split 7.2 architectures and covers all 5G FR1 frequency bands from 600 MHz to 6 GHz, catering to manufacturers and system integrators looking to create multi‑band, multi‑operator O‑RU solutions.
The RNS805‑RU‑BB combines RANsemi’s RNS805 O‑RU system‑on‑chip (SoC) with Texas Instruments’ AFE7769D 4T4R multi‑band RF transceiver. Measuring 165 mm × 170 mm, this board serves as a comprehensive Category A Split 7.2 baseband platform, featuring digital pre‑distortion (DPD), GNSS/IEEE 1588/SyncE timing synchronisation, and support for both TDD and FDD modes. It is versatile enough to be used with various RF front‑end modules and can be deployed in configurations ranging from indoor small cells to outdoor macro units.
With support for 4T4R small‑cell operation with 200 MHz occupied bandwidth, three‑carrier aggregation using 300 MHz instantaneous bandwidth, and mixed‑mode configurations like 2T2R TDD combined with 2T2R FDD, the board is a game-changer. The integrated DPD capability enables power amplifiers linearisation, enhancing spectral performance for both 4G and 5G applications.
Connectivity options include eCPRI fronthaul via SFP28 for 10/25 GbE or 10 GbE copper Ethernet. The board also offers discrete RF interfaces for flexible power‑amplifier connections across different deployment scenarios. It comes equipped with RJ45 and USB debug interfaces, supports Power over Ethernet (PoE) and 12 V auxiliary power, and includes a full 5G NR and LTE O‑RU software licence covering management, control, synchronisation, and user‑plane functions.
The RNS805‑RU‑BB can function as a standalone unit or be used in a dual‑board configuration for more complex radio architectures. Whether for laboratory testing or commercial deployment, this board is a versatile solution.
Filed Under: 5G, RF, SoC, Tools, Transceivers
