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Radio over Ethernet (RoE) Subsystem


Enables next generation 5G eCPRI wireless applications

Product Description

The Xilinx® Radio over Ethernet Framer (RoE Framer) core is part of a complete subsystem solution developed on the Zynq® UltraScale+™ MPSoC, relying on both hardware and software to provide a comprehensive and efficient computing platform for the required protocols and features: eCPRI, IEEE 1914.3, IEEE 1588, Synchronous Ethernet, Node and Network OAM. The core enables radio data transmission through a packet-based transport network connecting Remote Radio Units (RRU) to the centralized Baseband Unit (BBU).

Key Features and Benefits

  • Includes eCPRI example design
  • Supports IEEE 802.1 Ethernet packets, optionally including VLAN tags, as well as UDP over IPv4 or IPv6.
  • Automates in hardware the encapsulation and extraction of I/Q radio samples in and from the transported packets, formed according to the eCPRI Specification V1.1
  • Supports different functional decompositions between RRUs and BBUs and can transport either time domain or frequency domain I/Q samples.
  • Fully compatible with xRAN Control, User and Synchronization Plane Specification v1.0.
  • Supports up to four 10 Gb/s or two 25 Gb/s Ethernet ports, relying on 10G/25G High Speed Ethernet Subsystem instantiation.
  • Each I/Q sample input and output port is implemented as a 64-bit AXI4-Stream interface and the number of supported interfaces can be either 1, 2, 4, 8, or 16. Transport packet sizes and internal buffers are fully customizable.
  • Real-time control packets can be associated to each radio data flow. The size and format of control packets can be programmed independently from data packets.
  • Programmable reception window to support networks with different packet delay variation.
  • Time alignment using IEEE 1588, the subsystem can also align the generation and collection of I/Q samples to the 10ms Start of Radio Frame pulse.
  • Supports all eCPRI message types, including one-way delay measurement based on PCS/PMA level timestamps, relying on API software.



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