Advanced node 5G Massive MIMO RadioUnit
The customer goal was to have a state-ofthe-
art low-power, multiple-channel 5G
massive MIMO Radio Unit (RU) capable of
operating reliably in demanding
environments.
The power per channel targets were several
times lower than any other systems having
similar RF and processing performance.
Customer Challenge
Customer Challange
The project posed intricate challenges,
demanding extensive digital content to
facilitate a complex 32 channel MIMO
beamformer. This necessitated the use of an
advanced FinFET node; due to this recent
node the RF Front-end, PLL, ADCs and DACs
needed to be developed to meet the
demanding system-level performance and
power requirements.
The fine balance between power efficiency of
the PA and complexity in the design's Digital
Pre-Distortion (DPD) control loop presented a
significant challenge, requiring meticulous
simulation and prototyping efforts.
The 32 RF Tx and Rx channels with demanding
performance requirements, multiple SerDes
and large digital signal processing chain
meant the design was highly complex and a
first-of-a-kind challenge
Highlights
Cortex R52 in dual core configuration with NEON co-processing
CoreSight SoC-600 for embedded trace
CoreLink NIC400 8 physical instances forming a hierarchical AXI based interconnect
CoreLink DMA-330
CoreLink GIC-400 Interrupt controller
CoreStone APB Dual Timer
PrimeCell PL061 GPIO
PrimeCell PL031 Inter Processor
Communication Module
PrimeCell PL031 Real Time Clock
PrimeCell PL022 SPI
PrimeCell PL011 UART
SP805 Watchdog timer
Other 3rd pary IPs
56Gb SerDes
Channel ADC and DAC
PA feedback ADC
RF PLLs
Digital PLLs S
PVT Sensor
Gb Ethernet
Quad SPI Flash
Application Area
Infrastructure
Functional Safety
High Reliability
5G
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