The document describes a private LTE network demonstration using an FPGA-based layer 2 switch solution with PTP synchronization. A PTP grand master provides precise timing to power over Ethernet hubs which supply power to sXGP access points connected in a ring topology. The access points provide wireless connectivity to user equipment. The demonstration aims to research and develop expanded communication solutions and IoT devices using the sXGP method for on-premises networks.

1. Page 1iPOP2020, Virtual Conference, Japan
Private LTE (sXGP) over PTP flow through
the FPGA based Layer-2 switch solution.
PTP Grand Master
PoE_HUB（PS#1)
AP#1.1
（sXGP Accesspoint） AP#1.6~1.7
Cat5e
RS#2
PS#2
AP#2.1 AP#2.6~2.7
RS#21
PS#21
AP#21.1
AP#21.6~21.7
sXGP EPC Server
Optical Fiber
RS#22
PS#22
AP#22.1
AP#22.6~22.7
RSTP Ring Topology
UE

2. Page 2iPOP2020, Virtual Conference, Japan
Showcase Demo
Showcase Demo image @ K2 Campus

3. Page 3iPOP2020, Virtual Conference, Japan
FPGA based IEEE1588 PTP solution
Special Thanks to COMCORES http://comcores.com/IEEE1588HW.html
Zynq UltraScale+ MPSoC ZCU102 Evaluation Kit

4. Page 4iPOP2020, Virtual Conference, Japan
Showcase Demo & Future plans
• We provide on-premises communication solutions
using the sXGP (shared XGP) method.
• We will proceed with research and development
of communication equipment and IoT devices to
further expand sXGP.
L2Switch with PTP&SyncE
PoE_HUB（Power Over Ether&SyncE)
sXGP Accesspoint
Cat5e
sXGP EPC
PTP Grand Master Clock
Time1
Time2
Time2
Time1
Time2
~Low latency, nano order
Precision Time Protocol (PTP)
Cloud
Facial recognition
Web Camera
app
Time synchronization