20150909_Benefits of C-RAN and Adoption Trends
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Transcript of 20150909_Benefits of C-RAN and Adoption Trends
Benefits of C-RAN and adoption trends Monica Paolini, Senza Fili
9 September, 2015
| 2 | © Senza Fili Consulting LLC 2015
Agenda
September 9, 2015
Dr. Chih-Lin I, Chief Scientist of Wireless Technologies, China Mobile Research Institute
Gael Derven, VP partnership & Business Development, E-Blink
Eran Bello, VP Products and Marketing, ASOCS
Panel discussion and Q&A
| 3 | © Senza Fili Consulting LLC 2015
C-RAN survey results
September 9, 2015
Cost savings are major motivation for C-RAN adoption But yet difficult to assess cost savings in the long term
| 4 | © Senza Fili Consulting LLC 2015
C-RAN survey results
September 9, 2015
Asia is the fastest moving market for C-RAN, followed by North America
| 5 | © Senza Fili Consulting LLC 2015
C-RAN survey results
September 9, 2015
C-RAN and small cells strengthen each other value proposition
| 6 | © Senza Fili Consulting LLC 2015
C-RAN survey results
September 9, 2015
Fiber availability is still perceived as the major obstacle to C-RAN adoption
September 9, 2015
Senza Fili provides advisory support on wireless data technologies and services. At Senza Fili we have in depth expertise in financial modelling, market forecasts and research, white paper preparation, business plan support, RFP preparation and management, due diligence, and training. Our client base is international and spans the entire value chain: clients include wireline, fixed wireless, and mobile operators, enterprises and other vertical players, vendors, system integrators, investors, regulators, and industry associations. We provide a bridge between technologies and services, helping our clients assess established and emerging technologies, leverage these technologies to support new or existing services, and build solid, profitable business models. Independent advice, a strong quantitative orientation, and an international perspective are the hallmarks of our work. For additional information, visit www.senzafiliconsulting.com, or contact us at [email protected] or +1 425 657 4991.
Monica Paolini, PhD, is the founder and president of Senza Fili. She is an expert in wireless technologies and has helped clients worldwide to understand technology and customer requirements, evaluate business plan opportunities, market their services and products, and estimate the market size and revenue opportunity of new and established wireless technologies. She has frequently been invited to give presentations at conferences and has written several reports and articles on wireless broadband technologies. She has a PhD in cognitive science from the University of California, San Diego (US), an MBA from the University of Oxford (UK), and a BA/MA in philosophy from the University of Bologna (Italy). You can contact Monica at [email protected].
September 9, 2015
Monica Paolini Senza Fili www.senzafiliconsulting.com [email protected]
See you in Cologne at RAN World, 29-30 September 2015 www.ranworldevent.com
| 9 | © Senza Fili Consulting LLC 2015
Recent Progress in C-RAN
Dr. Chih-Lin I Chief Scientist, Wireless Technologies
China Mobile Research Institute
C-RAN Webinar, September 9, 2015
| 10 | © Senza Fili Consulting LLC 2015 10
C-RAN per CMCC White Paper in 2009
…
RRU
RRU
RRU
RRU
RRU
RRU
RRU
Virtual BS Pool
Distributed RRU
High bandwidth optical transport network
Real-time Cloud for centralized processing
…
Centralized Control and/or Processing Centralized processing resource pool that
can support 10~1000 cells
Collaborative Radio Multi-cell Joint scheduling and processing
Real-Time Cloud (Virtualization) Target to Open IT platform
Consolidate the processing resource into a
Cloud
Flexible multi-standard operation and
migration
Clean System Target Less power consuming
Lower OPEX
Fast system roll-out
Q1 2012: Revolutionary Evolution of RAN; Essential Element of 5G!
| 11 | © Senza Fili Consulting LLC 2015 11
Beijing
TD-LTE C-RAN Trials & Deployment
(2013~ now)
Fuzhou • First WDM field trial • 2nd stage finished with 17 sites centralization with passive WDM solution • 22% CAPEX saving, consistent with Qingdao Case • Subsequent C-RAN deployment in TD-L
deployment
Qingdao
World-first WDM outdoor version 7 sites, 2-antenna RRUs
Verification of C-RAN UL CoMP with
cell-edge data rate improved by 50 – 300%
20% saving of CAPEX in overall
Hefei
Qingdao
Fuzhou
Beijing
HetNet
15 sites in 4 super cell
Data rate improved by 50%
Hefei
CPRI over OTN in an area of 1.9km^2
20 sites centralization at 1st stage
more than 100 sites on 2nd stage
Our C-RAN networks span across more than 12
provinces and cities, including 2G, 3G since 2010 and 4G
since 2012
In one city, the ongoing TD-LTE deployment, involving
more than 1000 sites, is mainly adopting C-RAN
Chengdu Guangz
hou
C-RAN trial and deployment in CMCC Key findings:
C-RAN greatly speeds up the network deployment and
saves the TCO
FH solutions are mature and diverse for different
scenarios
C-RAN greatly helps the system performance
improvement
Winner of Best Overall RAN Initiative (Trial) of RANNY Awards
| 12 | © Senza Fili Consulting LLC 2015 12
Other Commercial C-RAN deployments
PR:DOCOMO Verifies Advanced C-RAN in outdoor environment…
KT
• C-RAN commercialization in
2011
• Around 12 central offices in
Seoul with each supporting
1000 FDD LTE and 1200~7200 WCDMA carriers
SKT
• C-RAN commercial deployment
since 2011
• Similar centralization scale to KT
• L2/L3 processing on x86 platform
• one server to support 144 carriers
Softbank
• In China, CU and CT has started C-RAN deployment extensively since 2014;
• DoCoMo has just successfully completed an outdoor-commercial-
environment verification of its Advanced C-RAN, achieving a 240Mbps
downlink using 35MHz bandwidth in February 2015
• C-RAN has also been tested or deployed in Europe and North America, e.g.
Orange, Verizon etc. Source: KT, SKT, DOCOMO
| 13 | © Senza Fili Consulting LLC 2015 13
• End2end system: from EPC, baseband, radio to UE
• Front-end: CPRI termination
• Linux: special optimization to improve real-time performance
• Commercial EPC, UE
• Integrated with SmarTile
• BS configuration & management modules
• 20MHz, 2 antennas
• 4*2-ant SmarTile, [email protected]
• Live migration
• IQ data transportation via PCIe and 10GE
EPC soft BBU SmarTile
PCIe CPRI EPC RT-Linux+ Driver
VM+OAI
SmarTile
Commercial UE
(Samsung)
Spectrum analyzer
(Keysight)
Front-End
RAN virtualization: the story in a C-RAN prototype
LTE VM-based L1+L2+L3 live migration
• Based on OAI *, yet significant improvements via SW architecture redesign & various optimization
• 5MHz -> 20MHz LTE
• Peak DL throughput (45Mbps, Config. 3, single port)
• FFT module processing time saved by 1/3
• Dynamic DL resource scheduling to support adaptive video coding (edge app.)
• Host -> VM
• New branch setup in OAI for C-RAN (Sep. 2014, https://svn.eurecom.fr/openairsvn/openair4G/branches/cran)
*: OAI: http://www.openairinterface.org/
First PoC developed in house
| 14 | © Senza Fili Consulting LLC 2015 14
Virtualized C-RAN demoed in MWC 2015
World-first L1+L2+L3 live migration demonstration Highlights:
• Optimization on RT performance of hypervisor and OS
• Interrupt response time: traditional v.s. optimized
• Max: 1.68ms vs 16.90us
• Avg: 100us vs 4us
• LTE in VM without acceleration
• World-first L1+L2+L3 live migration demonstration
• Optimized down-time performance to 10ms order of magnitude
• No service interruption during LM
• I/Q data soft handover during LM
• Memory sharing to allow high-speed communication b/w Frond-end card, OS and VM
| 15 | © Senza Fili Consulting LLC 2015 15
First field trial for C-RAN virtualization with accelerator-based solution
• Multi-RAT: GSM & TD-LTE
• TD-LTE:
• Hybrid indoor and outdoor
coverage
• 18 indoor cells
• 3 outdoor cells
• BBU pool
• Centralized COTS components
• 4 standard IT racks, hosting 17 HP
servers
• 3 10Gbps switches and 1 Gbps
switch
• Accelerator for L1 processing
• Demo cases
• GSM voice calls
• iPhone for LTE 2A video streaming
• iPhone for LTE 2A video streaming
with live migration
• Dongle for LTE 2A DL
| 16 | © Senza Fili Consulting LLC 2015 16
…
RRU
RRU RRU
RRU
RRU
RRU
RRU
Virtual BS Pool
…
Real-time Cloud for
centralized processing
Distributed RRU
High bandwidth optical
transport network
Massive antennas (160Gbps for 128 Ant.)
Massive carriers
(9.8Gbps for each carrier2 with 20M&8 Ant.)
Challenges for future interface/transport network
CPRI →NGFI
P2P connection
Low-efficiency,
High consumption,
Inflexibility
• The key is function re-split between BBU and RRU & re-design of underlined transport networks
• NGFI encapsulation , IEEE 1904 WG (2-3 Jun in Beijing hosted by CMCC)
• Latency enhancement , TSN • Synchronization, IEEE 1588WG & ITU-T
The objectives of NGFI
• Decoupling cell&UE proc. and UL&DL
NGFI considerations
• Support 5G key tech.
• Enable statistical multiplexing for FH
NGFI: the next big thing
• First NGFI workshop on 4th June, 2015
Ethernet as promising solution
| 17 | © Senza Fili Consulting LLC 2015 17
The 1st NGFI workshop in Beijing
http://labs.chinamobile.com/cran/
下一代前传网络接口
白 皮 书
White Paper of
Next Generation Fronthaul Interface
版本号 1.0
2015年6月4日
中国移动通信研究院
上海贝尔股份有限公司
诺基亚网络
中兴通讯股份有限公司
博通公司
英特尔中国研究中心
• June 4th, CMRI, Beijing
• NGFI White Paper version 1 (co-authored by
CMCC, Broadcom, Intel, Alcatel-Lucent, ZTE,
Nokia)
• Keynote speech
• Panel discussion
• MoU signing ceremony (including Broadcom,
Intel, Alcatel-Lucent, ZTE, Nokia, Xilinx)
| 18 | © Senza Fili Consulting LLC 2015 18
Relevant SDO activities
• IEEE
• IEEE 1904.3 TF: newly founded to address the CPRI encapsulation in the form of Ethernet packet
• IEEE TSN: work item under preparation
• IEEE 1588WG: considering specialized solutions to improved synchronization accuracy
• A NGFI working group (WG) under preparation under the sponsorship of an IEEE-SA Standards
Sponsor with founding members of CMCC, AT&T, Huawei, Broadcom (more to join)
• CCSA:
• Newly founded project in CCSA to study the requirements, scenarios and the key technologies
• NGMN:
• Initial analysis on function split for LTE
• NGFI as a key building block for 5G
• ITU-T:
• Initial discussion on how to support synchronization for NGFI
• ITU-T FG for IMT-2020, FH being one of the key topics
| 19 | © Senza Fili Consulting LLC 2015 19
CMCC 5G System Architecture
Unified RAN architecture + Common high layer protocol(UCN/NMC)
Low Freq. evolved RIT
SDAI(Adaptive radio access)
Low Freq. New RIT High frequency RIT Massive-MTC RIT Mission-Critical RIT
PTN PON Transportation
network
Core Network
Low-latency &
high-reliability
Seamless wide-area
coverage Hotspot and high
data rate Low-power &
massive-connections
SDN/NFV
based on CRAN/NGFI
| 20 | © Senza Fili Consulting LLC 2015 20
Towards No More Cell
Rethink cellular: towards “No More Cell “in Ultra Dense Network (UDN)
Almost equivalent number and tx power of AP and UE in UDN
Unique UE ID in connected mode and network coordinated initial access
Enhanced UL measurement for sync and mobility, towards seamless handover
Data only Carrier design, for low cost AP deployment
User centric Access Cloudlet
with on-demand minimum system information
Data only Carrier
No cell specific common broadcast
Macro assisted
Preferred uplink mobility measurement
Network coordinated UE ID,
Random Access, AP selection,
RRC, Mobility and etc.
Cell specific
Common broadcast
Access, Sync, Scheduling and etc
Mobility: hard handover
No more Cell Reconstruct common broadcast
Centralized radio control for access, Sync,
Scheduling and etc
Remove C-RNTI and hard handover
Macro AP
Broadcast all system information over SFN
| 21 | © Senza Fili Consulting LLC 2015 21
“No More Cell”: User Oriented Network based on C-RAN
User 1 User 2
BBU Pool
RRU1 RRU2 RRU3
vCell1
RRU4 RRU5
vCell2
User1
vBBU1
RRU BBU
Switch and Forward
User2
vBBU2
Cell only exists when user comes
| 22 | © Senza Fili Consulting LLC 2015 22
• Various SDOs and initiatives: NGMN, IEEE, ITU-T, ETSI, EU S7FP project, OAI, ETSI etc.
C-RAN: from little known to well known to common consensus in 7
years • Strong and continuously maturing ecosystem: from CT to IT, from
transport to wireless, from centralization to virtualization
Fronthaul & NGRI BBU pooling HW platform virtualization
| 23 | © Senza Fili Consulting LLC 2015 23
C-RAN is not a single technology, it’s a technology path
Multiple phases, features and gains
Revolutionary Evolution of RAN
Summary
Essential Enabling Element of 5G
NGFI for multi-level collaboration, and more
IEEE NGFI WG being launched
5G: Joint Design of AI/MAC/RA and RAN Architecture!
| 24 | © Senza Fili Consulting LLC 2015
Thank you!
| 25 | © Senza Fili Consulting LLC 2015
“Wireless fronthaul picks up...
...where fiber leaves off”
| 26 | © Senza Fili Consulting LLC 2015
BBU Mobile
core
Mobile core
Backhaul (Fiber / wireless)
C-RAN
Fronthaul (Fiber / Wireless)
RRU
…to centralization…
…and densification
x10
Macro, Remote cell, Metro cell, Small cell
LTE – A / 5G / C-RAN
Carrier aggregation CoMP,
V-RAN…
BBU
BBU
BBU
BBU
BBU BBU
RRU
From distribution…
µRR
U
BBU
µRRU
µRR
U
µRR
U
µRR
U RRU RRU
RRU
RRU
RRU and µRRU
Network evolution
26
| 27 | © Senza Fili Consulting LLC 2015
Wireless fronthaul complements fiber
Fronthaul
BBU Hotel C-RAN
Optical fronthaul network
RRU
RRU
Wireless
Fiber
Very last mile
Backhaul
Macro RRU
µRRU
Macro RRU
µRRU
27
Wireless fronthaul picks up … where fiber leaves off
| 28 | © Senza Fili Consulting LLC 2015
Network densification with wireless fronthaul
Turn every site into a local C-RAN and add remote macro & micro sectors
28
| 29 | © Senza Fili Consulting LLC 2015
~510M
29
Adding a remote sector for capacity
| 30 | © Senza Fili Consulting LLC 2015
Adding a remote sector for VIP coverage
30
| 31 | © Senza Fili Consulting LLC 2015
EBlink at RAN World – Cologne – 29 & 30 Sep
31
www.e-blink.com / [email protected]
| 32 | © Senza Fili Consulting LLC 2015
| 33 | © Senza Fili Consulting LLC 2015
2015 ASOCS Ltd. Confidential
Virtual-RAN: Delivering on the C-RAN Promise Eran Bello, VP Product & Marketing
September 9, 2015
| 34 | © Senza Fili Consulting LLC 2015 34 Confidential
Traditional RAN Topology
D-RAN Distributed RAN
Traditional Baseband
EPC
Backhaul
Transport
Fronthaul Baseband
to RRH (Local)
CPRI over Fiber
| 35 | © Senza Fili Consulting LLC 2015 35 Confidential
Traditional RAN Topology: Challenges
• Air-interface, configuration specific – Non-agile
• Individual cell planning – High CAPEX
• Individual cell maintenance – High OPEX
• Purpose built appliances – Non-Scalable
D-RAN Distributed RAN
Traditional Baseband
EPC
Backhaul
Transport
Fronthaul Baseband
to RRH (Local)
CPRI over Fiber
| 36 | © Senza Fili Consulting LLC 2015 36 Confidential
Centralized RAN Topology: Base Station ‘Hoteling’
C-RAN Centralized RAN
Traditional Baseband
EPC
Backhaul
Transport
Centralized
Baseband Pool
Fronthaul
Transport Baseband to RRH
CPRI over Fiber
SAME Appliances:
• Non-agile
• High CAPEX
Centralization:
• Improved scalability
• Improved OPEX
D-RAN Distributed RAN
Traditional Baseband
EPC
Backhaul
Transport
Fronthaul Baseband
to RRH (Local)
CPRI over Fiber
| 37 | © Senza Fili Consulting LLC 2015 37 Confidential
Virtual RAN Topology: Decoupling of Software & Hardware
vRAN Virtualized RAN
Virtual Baseband
Backhaul
Transport
Fronthaul
Transport Baseband to RRH
CPRI over Fiber
Virtualized
Baseband Pool
C-RAN Centralized RAN
Traditional Baseband
EPC
Backhaul
Transport
Centralized
Baseband Pool
Fronthaul
Transport Baseband to RRH
CPRI over Fiber
D-RAN Distributed RAN
Traditional Baseband
EPC
Backhaul
Transport
Fronthaul Baseband
to RRH (Local)
CPRI over Fiber
Air-interface agnostic
Centralization and Virtualization
Max agility
Max scalability
Low CAPEX
Low OPEX
| 38 | © Senza Fili Consulting LLC 2015 38 Confidential
Traditional Small Cells Topology
• Purpose built appliances – Non-Scalable
• Air-interface, configuration specific – Non-Agile
• Individual cell maintenance – High OPEX
• Small cell coverage and capacity – Non-Scalable
EPC
Small Cells Distributed RAN
Traditional Baseband
Backhaul
Transport
Backhaul
Transport to
Proprietary RRH
| 39 | © Senza Fili Consulting LLC 2015 39 Confidential
Traditional Small Cells Topology: Meeting Bands Required
Small Cells Distributed RAN
Traditional Baseband
EPC
Backhaul
Transport
Backhaul
Transport to
Proprietary RRH
Increasing densification for coverage
• High CAPEX
• Non-Scalable
Individual cell maintenance
• High OPEX
Air-interface, configuration specific
• Non-agile
| 40 | © Senza Fili Consulting LLC 2015 40 Confidential
Traditional Small Cells Topology: Meeting Capacity Required
Small Cells Distributed RAN
Traditional Baseband
EPC
Backhaul
Transport
Backhaul
Transport to
Proprietary RRH
Increasing densification for capacity
• High CAPEX
• Non-Scalable
Individual cell maintenance
• High OPEX
Air-interface, configuration specific
• Non-agile
| 41 | © Senza Fili Consulting LLC 2015 41 Confidential
D-RAN Split Topology: Adding Appliance to the Network
Small Cells Distributed RAN
Traditional Baseband
EPC
Backhaul
Transport
D-RAN Split Distributed RAN with
Split Baseband
EPC
Backhaul
Transport
Backhaul
Transport to
Proprietary RRH
Backhaul
Transport to
Proprietary RRH
SAME purpose built distributed
appliances
• Non-agile
• Non-Scalable
• High CAPEX
• High OPEX
| 42 | © Senza Fili Consulting LLC 2015 42 Confidential
Virtual RAN Topology: Decoupling of Software & Hardware
Small Cells Distributed RAN
Traditional Baseband
EPC
Backhaul
Transport
D-RAN Split Distributed RAN with
Split Baseband
EPC
Backhaul
Transport
Backhaul
Transport to
Proprietary RRH
Backhaul
Transport to
Proprietary RRH
vRAN Virtualized RAN
Virtual Baseband
Backhaul
Transport
Fronthaul
Transport Baseband to RRH
CPRI over Fiber
Virtualized
Baseband Pool
Air-interface agnostic
Centralization and Virtualization
Max agility
Max scalability
Low CAPEX
Low OPEX
| 43 | © Senza Fili Consulting LLC 2015 43 Confidential
In-Building vRAN: DAS & vBS= HIGH Coverage &Capacity
vRAN Virtualized RAN
Virtual Baseband
EPC
Backhaul
Transport
Virtualized
Baseband Pool
Fronthaul
Transport Baseband to RRH
CPRI over Fiber
EPC
Backhaul
Transport
Virtual
Base Station
(vBS) Baseband Pool
Fronthaul
Transport Baseband to RRH
CPRI over Fiber
Distributed Antenna System (DAS)
• Air-interface agnostic
• Neutral Host
• Wide Band
• Full agility
• Full scalability
• Low CAPEX
• Low OPEX
| 44 | © Senza Fili Consulting LLC 2015 44 Confidential
RAN Use-cases
Rural area
• Distributed RAN
• Traditional Macro
Base Stations
• High Power
Small Cells
In-building Residential
and Small to Mid-size
Enterprise
• WiFi
• Femto Cells
High Dense Urban
• Virtual RAN
In-building Mid-size to
Large Venues and
Enterprise
• WiFi
• Virtual RAN
| 45 | © Senza Fili Consulting LLC 2015 45 Confidential
Virtual Base Station Overview
A key component in vRAN: virtual Radio Access Network
A software based implementation of traditional base station
Deployed in virtual machines on standard COTS servers
Enable shared and dynamic resource allocation
| 46 | © Senza Fili Consulting LLC 2015 46 Confidential
Fully Virtualized Base Station On Standard Cloud
• Cloud-RAN deployment at any scale, on an open platform
• Unmatched spectrum, energy efficiency
• Significantly reduced TCO
| 47 | © Senza Fili Consulting LLC 2015 47 Confidential
NFV vBS-Based RAN: Cloud RAN at the Metro & Edge
Complete RAN Virtualization: Every Layer, all functions, any RRU
| 48 | © Senza Fili Consulting LLC 2015 48 Confidential
Expanding NFV through vBS at the Edge
Deploying vBS at the edge enables other
NFV VNF to migrate from core to premise
vEPC, vIMS, vCDN, vSecurity, vMonitoring, etc.
vCD
N
vBS vEPC vSEC
| 49 | © Senza Fili Consulting LLC 2015 49 Confidential
In-building and Outdoor vRAN: Value Proposition
Multi
Antenna
sector
Single
Antenna
sector
MIMO CoMP
Improved spectrum efficiency • Enables implementation of advanced technologies to optimize utilization • Joint Processing/Joint Transmission (JP/JT) type of CoMP
Reduced probability for rip & replace • Virtual Base Station resources allocated per
deployment topology • Reduces on site engineering time for long manual
antenna positioning • Enables Pay as you Grow approach
Neutral host platform • A Single platform can support various Carries • Enables Capacity based charging
Evolving DAS to DRAS networks • Distributed Radio Antenna System!
| 50 | © Senza Fili Consulting LLC 2015 50 Confidential
Summary
Complete RAN Virtualization
• Every layer, all functions, any RRH and scale
• Unparalleled spectrum efficiency
• A single unified platform for neutral hosts and Carrier of Carriers
• Future proof, paving the way to 5G
| 51 | © Senza Fili Consulting LLC 2015
www.asocsnetworks.com
Thank You!