O-RAN Radio Interface Subsystem


Enables next generation 5G eCPRI wireless applications

Product Description

The AMD O-RAN Radio Interface (O-RAN Radio IF) core is part of a system solution developed on the Zynq™ UltraScale+™ MPSoC, relying on both hardware and software to provide a comprehensive and efficient computing platform required to implement an O-RAN radio unit. The core supports the use of the following protocols: eCPRI, IEEE 1914.3 (NGFI), IEEE 1588, Synchronous Ethernet, and Node and Network OAM. The core enables radio data transmission through a packet-based transport network connecting Remote Radio Units (RRUs) to the centralized Baseband Unit (BBU).

Key Features and Benefits

  • Provides O-RU (O-RAN radio unit) function only
  • Supports standard IEEE 802.1 Ethernet packets, optionally including VLAN tags, as well as UDP over IPv4 or IPv6, over Ethernet.
  • Fully programmable filtering rules allow the hardware to identify and manage user plane packets.
  • Each Ethernet and IP/UDP header field is fully programmable.
  • Alignment to an external 10 ms Start of Radio Frame pulse, enabling 1588 synchronization.
  • The core implements O-RAN Control, User and Synchronization Plane Specification v4.0 (O-RAN Specification v4.0). Not all features are supported; see the O-RAN Support Matrix for full details. In this mode, the core supports up to four 10 Gb/s or four 25 Gb/s Ethernet ports. Mixed rate mode is not supported.
    • Currently supports eight component carriers (CCs), with independent uplink and downlink timers.
    • Supports a resolution of down to one resource block (RB) per section message.
    • U-Plane support for up to 16 spatial streams with 2048 flow IDs and four shared unsolicited data streams
    • Four unsolicited uplink data ports for use in SRS and one PRACH uplink data port
    • The core implements the radio fronthaul interface, managing both the control and user planes, implementing the appropriate timing advances and compensating for the delay variations of packets coming from different BBUs. User radio blocks with related beam IDs are extracted from received packets at the appropriate symbol period and forwarded through AXI4-Stream outputs to external double buffers interfacing the beamforming function


Resource Utilization



Featured Documents

Default Default Title Document Type Date