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Open Circuit Switching for an End-to-End 5G Dedicated Connection
Mika Skarp Founder & CTO
About Cloudstreet
Network service orchestration platform for mobile operators first developed at Nokia’s Silicon Valley campus, founded in 2012
Fully developed business/network layer application for the delivery of differentiated Quality of Service / Quality of Experience (QoS/QoE) for mobile broadband.
Real-time, dynamic profile-based service for application-aware bandwidth allocation.
First LTE/5G mobile network-ready business model to commercialize the delivery of guaranteed bandwidth capacity on-demand.
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90% of mobile traffic will be consumed By OTT video
Differentiating Traffic Classes
Best effort, email type service, social media and downloading short video files
Capacity sensitive, Netflix type service, buffering possible (sub classes) SD, HD and 4K
Delay sensitive, live video receiving/transmitting, gaming, zero buffering (sub classes) SD, HD and 4K
NUMBER OF USERS
4
End-to-End Dynamic Capacity Principles • One single SDN controller or controller cluster manages one network • Communication is based on edge network routing tables and white listing • In mobile networks, the SDN controller is called the Dynamic Profile Controller (DPC)
DISTRIBUTED ARCHITECTURE
3 MANDATORY & 3 OPTIONAL
PROCESSES
DEDICATED CAPACITY
• Possible from any point in any part of the network • Can be delivered by predefined profiles or service parameters (e.g. in/out bandwidth, latency, jitter, BER Etc). • Can also be refused, in which case a best effort connection will be provided • Requires that the customer knows the destination • Can be pre-ordered • Redundant capacity is requested separately • Can be allocated inside existing connection and can be resold further • Allows the connection to be split without breaking the contract • Connections parameters are set based on;
• type of traffic • amount of traffic application requires
• No over dimensioning or statistical multiplexing, but logical connections
• Request for dedicated capacity • Dedicated capacity creation • Remove dedicated capacity
• Test dedicated capacity (optional) • Monitor dedicated capacity (optional) • Provide billing information (optional)
MANDATORY PROCESSES OPTIONAL PROCESSES
5
Dynamic Capacity Use Cases: Healthcare
• HD image and video downlinks via low latency, dedicated capacity (2.5 Mbps, <1ms) • Remote instrument control vial symmetric, low latency dedicated capacity (0.8 Mbps, <1ms) • Sensor monitoring downlinking via low bitrate, dedicated capacity (0.2 Mbps, <50ms)
REMOTE OPERATION (three separate connections)
• HD image and video via symmetric, dedicated capacity (2.5 Mbps, <200 ms) PHYSICIAN CONSULT
• Sensor monitoring low bitrate uplink dedicated capacity (0.2 Mbps, <200 ms) PATIENT MONITORING
Technical Description Network View
COMCAST WLAN ACCESS POINT
e.g. AWS, Google
CORE NETWORK
Carrier 1 – AT&T
R A
D I
O
A C
C E
S S
Carrier 3 - Comcast
CORE
CL
OU
D
CORE NETWORK
3GPP IEEE802
DPC
Controller
DPC
Carrier 2 – Verizon
AT&T COMCAST
PCRF
SDN Controller
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End-to-End Dynamic Capacity Architecture
C O N T R O L P L A N E
Access (virtual) Access (virtual) Core (virtual) Core (virtual) Application
PGW APN APN PGW
PCRF Provisioning platform
Provisioning Platform
Virtualization platform
DPC SDN Controller Orchestration SDN
Controller DPC
U S E R P L A N E
K N O W L E D G E P L A N E
PCRF
Technical Description End Device View
LTE UE
1
RADIO NETWORK
4G
PGW
APN
VPN to Cloud
PCRF
Cloudstreet DPC
Application requests dedicated bearer from DPC and reports Cell ID if RF level is good enough
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DPC check if the user has right to use requested bearer and if there is room in the cell and will send request to PGW for new dedicated bearer application. Status is reported back to UE
• From 92% reliability to 99,99% (2Mbps)
• 8 simultaneous data bearers through one SIM card
• Only selected Applications can use dedicated bearer
• Different APN per dedicated bearer provides opportunity for end-to-end SLA
• Group functions
• DPC has open north and south bound interfaces
