5G Algorithm Development and Evaluation Platform
BigCat Wireless has put together a system that can be used to develop and evaluate Signal Processing Algorithms, analyse repartitoning of various Base Band and Radio functions across different parts of the 5G Wireless network, evaluate transmission of IQ Symbols over Ethernet and create a Massive Beamforming infrastructure with up to 64 antennas in the Downlink. Radio over Ethernet is also demonstratable and developable in this setup.
5G System Architecture Evolution
The 5G evolution not only aims to usher in higher bandwidth, throughput and interconnected devices among others, but also aims to reduce costs and enable scalability and flexibility of the network. Ethernet based NGFI (Next Generation Front Haul Interface) is expected to be the choice to transport symbols. NGFI aims to redefine system partition with the objective of carrying more information. This will also involve moving around Baseband functions between the eNodeB, RAU and RRH for better efficiency in the NGFI. Although standards are evolving and ideas being proposed, a likely evolution on the function partition is detailed below.
NGFI along with repartition of functions across eNodeB, RAU and RRH will create more economical and scalable 5G solutions
A Possible functional partition in the 5G System Architecture
- Information Level Processing
- Cross Layer functions like Frequency and Time Domain Scheduling
- Control Plane
- Bit Level Processing
- MIMO (SDMA, Beamforming, etc)
- Modem functions, Synchronization,
- Symbol Level Processing
- Channel Estimation and MIMO Processing
- CFR, DPD
A 5G solution not only requires complex Signal processing but needs precise delay and calibration engineering coupled with using non deterministic Interfaces like Ethernet to precisely align symbols across multiple antennas to enable Massive MIMO.
|Chanel Estimation||Massive MIMO||CFR, Envelope Tracking, DPD|
Frequency and Time Domain Scheduling
|IEEE 1588||JESD 204B|
BigCat Wireless — your 5G Development and Solutions partner