AnyCell Connectivity - A New Era for Mobile Networks
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Transcript of AnyCell Connectivity - A New Era for Mobile Networks
Dr. Michael Ritter
AnyCell™ Connectivity – A New Era for Mobile Networks
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 2 2
Fully IP-Oriented
Radio Access Network Evolution
1992 2003 2009 2011 2013
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 3 3
Public Access Small Cells
Different small cell flavors and deployment scenarios
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 4 4
From Remote Radio Head to Cloud-RAN
RRH
RRH
RRH
BBU
RRH
RRH
BBU
RRH EPC
CPRI
CPRI
S1
S1
X2
RRH
RRH
RRH
RRH
RRH
RRH EPC
CPRI
CPRI
S1
X2
BBU Pool
Centralizing control for improved flexibility and efficiency
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 5 5
• Benefits
• Tight interference and spectrum coordination
• Highest spectral efficiency
• Phase synchronization of RRHs not required
• Small footprint and simple deployment
• Challenges
• Low-latency, high bandwidth connection
• CPRI needs to be transported over fiber
• Limited reach
• Multi-radio LTE+WiFi small cells not supported
Centralized vs. Distributed BBUs
Fronthaul and backhaul will co-exist for RAN interconnection
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 6 6
Evolution Towards Super Cells
Connectivity for any protocol, capacity, size and topology
Legacy RAN HetNet
Super Cells Centralized RAN
Mobile Fronthaul
Mobile Backhaul
Next-Gen Backhaul
AnyCell™ Connectivity
more nodes deeper network
more deployment options
more capacity lower latency more transparency
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 7 7
Mobile Backhaul for Small Cells
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 8 8
HetNet – Heterogeneous Networks
HetNet is fast becoming a reality to be supported by the backhaul network
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 9 9
• Environmentally hardened – outdoor deployment
• Ergonomically appealing – form, size and color
• Installation options – compliant to local planning requirements
• Security profile – more easy to gain access
Small Cell Demarcation Challenges
Small footprint, light weight and high security
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 10 10
End-to-End Service OAM
FSP 150 provides rich service OAM consistent across the entire network
• Critical for turn-up, assurance and trouble shooting
• Rich OAM implementation enables high service availability
• Standardized implementation for seamless inter working
• Tight performance constraints require accurate measurement
Turn-Up Testing
In-Service Monitoring
Performance Assurance
Trouble Shooting
Network Maintenance
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 11 11
Small Cell Backhaul
Small Cells
Macro Cell Evolved
Packet Core
Macro Cell Backhaul Network
Small Cell Backhaul Network
Leading to a deeper and more heterogeneous infrastructure
Small Cells
FSP Service Manager
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 12 12
Radio Access Network Synchronization
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 13 13
Need for Phase Synchronization
Challenge to synchronization architecture of today’s networks
• Time Division Duplex mode (TD-LTE)
• Small cells enable more efficient spectrum utilization
• Enhanced Inter-Cell Interference Coordination (eICIC)
• Coordinated Multipoint transmission (CoMP)
Downlink
Uplink
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 14 14
Application Radio Interface Backhaul
Frequency Phase Frequency Phase
CDMA 2000 ±50ppb ±3 to 10µs GPS GPS
GSM ±50ppb n/a ±16ppb n/a
WCDMA ±50ppb n/a ±16ppb n/a
LTE (FDD) ±50ppb n/a ±16ppb n/a
LTE (TDD) ±50ppb ±1.5µs ±16ppb ±1.1µs
LTE-A MBSFN ±50ppb ±1 to 5µs ±16ppb ±1.1µs
LTE-A CoMP ±50ppb ±1 to 5µs ±16ppb ±1.1µs
LTE-A eICIC ±50ppb ±1 to 5µs ±16ppb ±1.1µs
Mobile Backhaul Synchronization Needs
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 15 15
RAN Synchronization Options
• Network-based timing distribution
• ITU-T Synchronous Ethernet Good long-term solution for hop-by-hop frequency distribution
• IEEE 1588v2 – Precision Time Protocol Favored solution for combined frequency and phase alignment
• GNSS-based synchronization
• GPS or GLONASS Global coverage with availability challenges
Combination required to meet precision and availability targets
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 16 16
Syncjack™ Timing Distribution & Assurance
Efficient and highly available synchronization of radio base stations
T-GM
GNSS
PRTC
PTP Grandmaster
Packet-Based Backhaul Network
APTS mini-GM Probe
Local Base Station
GNSS
Remote Base Station
T-SC
T-SC
T-SC
T-SC
FSP Sync Manager
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 17 17
Managed CPRI Fronthaul
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 18 18
Application Channels Antenna Configuration CPRI Line Rate
WCDMA 4 x 5 MHz 1 sector, MIMO 2x2 1228.0 Mbps
LTE 20 MHz 1 sector, MIMO 2x2 2457.6 Mbps
WCDMA & LTE 1 x 5 MHz 20 MHz
3 sectors, MIMO 2x2 9830.4 Mbps
CPRI Interface Protocol
Scaling with technology, channel spectrum and radio sectors
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 19 19
Mobile Fronthaul Architectures
All common network architectures are supported by CPRI
Point-to-Point
Star
Linear
Ring
RRH BBU
RRH
RRH
RRH
RRH
RRH BBU
RRH
RRH
RRH BBU
RRH RRH
RRH
BBU
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 20 20
Access Link Monitoring for Fronthaul
Non-intrusive fiber monitoring and optical service assurance
RRH
RRH
RRH
RRH RRH RRH
Small Cell Small Cell Small Cell Macro Cell
Centralized BBU Pool
FSP 3000 ALM
FSP Service Manager
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 21 21
AnyCell™ Connectivity
© 2014 ADVA Optical Networking. All rights reserved. Confidential. 22 22
AnyCell™ Connectivity
Evolved Packet Core Macro Cell
Small Cell
Small Cell (RRH)
Macro Cell Hub Site
Small Cell (RRH)
Backhaul and fronthaul efficiency for radio access networks
Thank You
IMPORTANT NOTICE
The content of this presentation is strictly confidential. ADVA Optical Networking is the exclusive owner or licensee of the content, material, and information in this presentation. Any reproduction, publication or reprint, in whole or in part, is strictly prohibited.
The information in this presentation may not be accurate, complete or up to date, and is provided without warranties or representations of any kind, either express or implied. ADVA Optical Networking shall not be responsible for and disclaims any liability for any loss or damages, including without limitation, direct, indirect, incidental, consequential and special damages, alleged to have been caused by or in connection with using and/or relying on the information contained in this presentation.
Copyright © for the entire content of this presentation: ADVA Optical Networking.