Designing Baseband Systems
Baseband, which is the modem layer for 5G networks, has evolved through multiple steps as compared to 4G networks. 5G technology provides an exponential increase in bandwidth and the number of connections and services offered, so implementing baseband transmission is a key architecture decision that will impact the design of the entire network.
To reduce cost of deployment and operations, carriers have been deploying a newer structure that includes Centralized Radio Access Network (C-RAN) and virtualized Radio Access Network (v-RAN) technologies. To support the new architecture that is needed, 5G network’s classic layer—Baseband Unit (BBU)—has been split into the Distributed Unit (DU), which forms the lower layer, and the Centralized Unit (CU), which forms the upper layer.
Interactive Block Diagrams for Baseband Systems
Baseband BBU-DU Block Diagram
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Baseband CU Block Diagram
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We understand the distinct design and deployment challenges of creating complex 5G equipment. Our innovative technologies enable:
- Efficient and highly accurate end-to-end network synchronization
- Easy deployment of network equipment
- Power- and space-efficient network equipment designs
- Network equipment security
Our product portfolio includes:
- Well-established SyncE and IEEE® 1588 timing solutions and software
- The industry’s only Ethernet PHYs with simultaneous support for IEEE 1588 time stamping and 128-bit MACsec (IEEE 802.1AE-2006) or 256-bit MACsec (IEEE 802.1AEbn-2011) with no loss of accuracy
- RF Power Amplifiers (PAs), Low-Noise Amplifiers (LNAs) and varactor diodes for frequencies of more than 6 GHz
- Power over Ethernet (PoE) solutions that combine with our low-power FPGAs to deliver power savings of 2W–4W
- Highly secure FPGAs to create tamper-resistant and clone-resistant designs
- Industry-leading portfolio of security solutions including root of trust and Trusted Platform Module (TPM) devices
- Extensive selection of power components such as Power Management ICs (PMICs), microcontrollers (MCUs) and Digital Signal Controllers (DSCs) with innovative on-chip peripherals for power conversion and Power over Ethernet (PoE) silicon and system products