Download Wireless Cloud GENi

Wireless Cloud
GENi-FIRE Workshop
Washington D.C.
September 17th, 2015
Ivan Seskar
WINLAB (Wireless Information Network Laboratory)
Rutgers University
seskar (at) winlab (.) rutgers (.) edu
1
Basestation Architecture Evolution
Traditional
Design
Cloud Radio Access
Network (CRAN)
Current
Design
Power
Amplifier
FRONTHAUL
Power
Amplifier
Power
Amplifier
Remote
Radio
Head
(RRH)
•
•
•
Baseband
Power
Amplifier
Power
Amplifier
Common Public Radio
Interface (CPRI)
Open Base Station
Architecture Initiative
(OBSAI)
Open Radio Equipment
Interface (ETSI-ORI)
Transport
Control &
Mgmt.
Baseband
Baseband
Transport
Control &
Mgmt.
Baseband
Transport
Baseband
Control
&
Transport
Mgmt.
Control
&
Transport
Mgmt.
Control &
Mgmt.
Baseband
Unit
(BBU)
Core Network
BACKHAUL
Core Network
•
S11,R4,R6
Core Network
Core Network
CRAN Requirements
WiFi:
• Shortest SIFS interval = 10 μs
LTE (20 MHz LTE, 2x2 MIMO):
• CPRI fronthaul - 2.5 Gbps with BER < 10e-12
• Phase error of ± 1.5 - 5 μs
• Frequency error: ±50 ppb
• Delay < 3 ms total (0.1- 0.2 ms on fronthaul)
• Jitter < 65 ns
Multiple 1000 of GOPS (for a large system)
5G Wireless: Industry Concepts for 5G

Several industry white papers on 5G released in 2015:
Multi-purpose network with significant performance improvements
Ref: Nokia 5G White Paper, Feb 2015
Machine-to-machine and IoT applications (some requiring low latency)
Ref: Ericsson 5G White Paper, Feb 2015
Ref: Nokia 5G White Paper, Feb 2015
4
Densely deployed wireless networks with cloud integration
WINLAB
5G Wireless: Technical Challenges
Faster Cellular
Radios Access
~1-10 Gbps
~1000x capacity
Low-Latency/
Low-Power
Access Network
For Real-Time IoT
New Spectrum
& Dynamic
Spectrum
Access
Next-Gen
Mobile
Network
Wideband PHY
Custom PHY for IoT
60 Ghz & other new bands
Mobile network redesign
Massive MIMO
New MAC protocols
Convergence with Internet
Cloud RAN arch
RAN redesign
New unlicensed/shared
spectrum
Clean-slate Mobile Internet
mmWave (60 Ghz)
Light-weight control
Dynamic spectrum access
Software Defined Networks
Multi-Radio access
Control/data separation
Spectrum sharing techniques
HetNet (+WiFi, etc.)
Network protocol
redesign
Non-contiguous spectrum
Open wireless network
APIs
Network/DB coordination
methods
Cloud services &
computing
….
Edge cloud/fog computing
…
….
Virtualization, NFV
WINLAB
CRAN Expanded
OBRIT Extension: Proposal
OBRIT Extension: Current
• 40 USRP X310s
– Available FPGA resources:
Resource Type
Number
DSP48 Blocks
58K
Block Rams (18 kB)
14K
Logic Cells
7.2M
Slices (LUTs)
1.5M
– 2 x UBX-160 (10 MHz - 6 GHz RF, 160 MHz BB BW)
– 2 x 10G Ethernet for fronthaul/interconnect
– Four corner movable mini-racks (4 x 20 x 20 -> 1 x 80 x 80)
• > 500+ GPP Cores (?)
• 4 x 48 port 10G switches with 40G TOR switch
Clock Distribution
Open Issues
• What is our programming model for this mixed
environment?
• How much initial work do we as a community
need to do in order to get average experimenter
involved?
• What other communities we need to get involved
(i.e. who will help with virtualized real-time
platform)?
• How can we move these highly-programmable
platforms “outside” of the testbed?