SingleRAN Cloud BB Solution 03

Huawei Cloud BB Solutionwww.huawei.com HUAWEI TECHNOLOGIES CO., LTD. Contents  Challenge and Solution Overview  Cloud BB Hardware Architecture  Cloud BB Coordination Solution HUAWEI TECHNOLOGIES CO., LTD. Page 2 Why Go for Cloud BB Solution-Saving TCO & Improving QoE TCO Increasing CAPEX& OPEX when adding sites for MBB traffic Centralized BBU for decreasing TCO Challenges Cloud BB Solution Decreasing Cell Edge Experience due to interference Coordination Across BBU improving QoE Edge HUAWEI TECHNOLOGIES CO., LTD. Page 3 HUAWEI’s Understanding of Cloud BB Evolution BB Virtualization in future  Based on General Purpose CPU with L1 accelerators; Cloud BB  Low power consumption with high performance  Open API BBU Coordination for inter CELL coordination  Coordinated technology to improve network throughput . Centralized BBU for TCO saving  Site Space Saving  Energy Saving  O&M Simplified HUAWEI TECHNOLOGIES CO., LTD. Page 4 solution 2：Distributed BBU(USU) Page 5 solution 3：Distributed BBU (relaxed backhaul) .HUAWEI Cloud BB solution overview Macro Site Intelligent Coordination 消费者也是多任务的，他们可能在任何时间，任何地点开  UL CoMP 展业务，营销者的尖叫不能只是单一渠道的活动，必须要横  Carrier Aggregation (CA) 扩所有媒介和渠道，与消费者行为相符合。  Coordinated Scheduling & Power Control (CSPC)  Same Frequency Network(SFN) RRU GE/10GE S1/Se/X2/eX2 Fiber CPRI Access Network GE S1/Se/X2 GE S1/Se/X2/eX2 Fiber 10GE eX2 solution 1：Centralized BBU HUAWEI TECHNOLOGIES CO.. LTD. DU Cloud interworking concept. support 9.Comp. eX2 extended interface concept  Phase2: Function split DU Cloud and RU. support CPRI 4. support UMTS/LTE  ORI R2 2013Q1 released. 3GPP ETSI ORI Open Radio equipment Interface RU-DU(CPRI) interface open  ORI R1 released in 2012. LTD.Comp enhancement  R12:inter site CA  Page 6 .1. support CPRI 4.Industry Standardization Progress NGMN NGMN P-CRAN project. TCO saving analysis. eICIC  R11:CA. support tree. start from march 2011 by CMCC(CMCC/FT/DT/KT/STK/Telus/Hu awei/ZTE/ALU/NSN/EricssonIntel)  Phase1: CRAN Architecture. ring connection Before R12. support CPRI 4.3.803 Gbps(line speed)  ORI R3(CPRI 4. no research on Cloud BB Features which related with Huawei Cloud BB architecture:  R8:ICIC  R9:None  R10:CA. support GSM CPRI. LTE CPRI compression.2. BB virtualization research  HUAWEI TECHNOLOGIES CO..2) will release in 2014Q1. Page 7 . Cloud BB (Macro with Micro) will deploy in hot part area in UMTS and LTE network.1% 2016 90.5% 0. LTD.5% 0% 0% 2014 97.4% 5% 1.Cloud BB Global Market Forecast BBU Coordination (Macro with Micro) Traditional Macro Site BBU Stack BBU Coordination （Macro with Macro） 2012 96.5% 2..4% 3% 0. HUAWEI TECHNOLOGIES CO.6% 3%  BBU Stack is becoming important scenario in urban for TCO saving BBU Coordination will deployed firstly in LTE High load network  As Small Cell market booming. Contents  Challenge and Solution Overview  Cloud BB Hardware Architecture  Cloud BB Coordination Solution HUAWEI TECHNOLOGIES CO. Page 8 .. LTD. Analysis of Cloud BB Solutions BBU hotel USU3910 USU3910 Dependency Scenario G E 10GE BBU BBU Centralized BBU Distributed BBU(USU) Distributed BBU(Relaxed Backhaul) ≤10us(microsecond) ≤130us <4ms(millisecond) Backhaul Dedicated Dedicated Network Reuse Backhaul Network Bandwidth per BBU Dedicated ≥ 1*10GE ≥ 100Mbps Assumption baseline : 100% 80% 20~30% Network Latency (from BBU1 to BBU2) Coordinator Feature Gain Comparison HUAWEI TECHNOLOGIES CO. LTD. Huawei proprietary. No spread without permission.. Page 9 . Page 10 .. LTD. Huawei proprietary. No spread without permission.Cloud BB Architecture & Connection HUAWEI TECHNOLOGIES CO. Centralized BBU Architecture USU BBU S1/X2 Centralized BBU Coordination data transfer across centralized BBU Backhaul Network eX2 over Optical Fiber Centralized Cloud BB RRU RRU RRU RRU RRU HUAWEI TECHNOLOGIES CO.. Huawei proprietary. Recommended Application Scenario: Deploy in areas with sufficient fiber for saving OPEX and improving user experience ① Distance between BBU&USU: <100 m ② Distance between 1st Level USU& 2nd Level USU:<100m Page 11 . LTD. No spread without permission. (3 baseband for 1 BBU) 1 Cloud BB support 120 BBUs Max. No spread without permission. Page 12 Cloud BB . Huawei proprietary. (12 1st Level USUs+6 2nd Level USU) HUAWEI TECHNOLOGIES CO. LTD.Centralized BBU Connection Introduction USU1 USU2 USU6 … USU1 … USU6 2nd Level USU USU7 USU12 1st Level USU … … BBU1 … … BBU10 BBU1 BBU10 BBU1 Maximum 120BBUs*36 Cells … BBU10 BBU1 BBU10 Centralized Cloud BB Specification Max. Configuration 1 USU support 10 BBUs Max.. Distributed BBU Architecture (USU) Backhaul Network RRU eX2 over Optical Fiber BBU S1/X2 RRU Distributed Cloud BB BBU 1st level USU RRU S1/X2 RRU BBU ①BBU-1st Level USU distance: 10km ②BBU-BBU max. Page 13 .. Recommended Application Scenario: Request small scale centralized BBU and large area coordination Deploy optical transmission for eX2 Huawei proprietary. distance: 20km ③E2E time delay:<130us BBU HUAWEI TECHNOLOGIES CO. No spread without permission. LTD. Configuration 40GE 40GE 1st Level USU1 3910 10GE … 10GE 1st Level USU 6 10GE … … BBU1 BBU25 UCCU HUAWEI TECHNOLOGIES CO.. LTD.Distributed BBU (USU) Connection Introduction Distributed Cloud BB Specification 2nd Level USU Max. 1 Cloud BB support 150 BBUs Max. (6*1st Level USUs) . 10GE UCCU BBU1 UCCU BBU25 UCCU Page 14 1 USU support 25 BBUs Max. Huawei proprietary.Distributed BBU (Relaxed Backhaul) Architecture Backhaul Network Coordination data transfer over legacy Backhaul S1/X2 S1/X2 RRU RRU RRU RRU RRU BBU BBU BBU BBU RRU BBU BBU Distributed Cloud BB (Relaxed Backhaul) BBU Reuse the legacy S1/X2 backhaul to carry the coordination data No need to deploy dedicated optical transmission network Coordination gain depends on the latency of the transmission HUAWEI TECHNOLOGIES CO. LTD. RRU Page 15 .. No spread without permission. Huawei proprietary. LTD.. Page 16 .Transmission Solution for Front Haul in Centralized Cloud BB & in Distributed Cloud BB HUAWEI TECHNOLOGIES CO. No spread without permission. BBU/RRU insert long distant white Optic Mode BBU、RRU insert long-distant color Optic mode. LTD. Chain RRU 1 Dark Fiber RRU Active WDM Passive WDM topology :Ring.. BB-RF over OTN Sufficient fiber resource Insufficiency fiber resource Lack of fiber resource BW. 10Gbps 80Gbps/800Gbps 80Gbps/800Gbps Latency/ Jitter 5us/km 0ns 5us/km ±1ns <21us + 5us/km ±3ns Distance 20KM 20KM 15. Chain RRU 2 topology :Ring.8KM Pros Mature technical Saving fiber Saving more fiber Cons Most fiber consuming High Maintenance cost High device cost Scenario HUAWEI TECHNOLOGIES CO. Passive WDM Active WDM Active WDM Page 17 . Tree.Front Haul Transmission Solution (Optical) RRU BBU topology :Ring. Chain RRU BBU Passive WDM 3 Passive WDM BBU Solution Dark Fiber (P2P Fiber) Tech RRU chain or loop. Tree. passive WDM module BBU、RRU are connected by short distant optic directly. Tree. Front Haul Transmission Solution (Micro Wave: Not Recommend) Solution Tech Scenario BW. Latency/ Jitter Distance Micro Wave (Not Recommend) Only Eband can be used( 71-76. LTD.. The current version only support one hop.5G One hop 45us(next release 35us)， Jitter 20ns.81-86 GHz) Lack of fiber resource 2. 2 hops is planning 1KM Pros Saving more fiber Cons Very Limited BW. Page 18 . HUAWEI TECHNOLOGIES CO. LTD.Dark Fiber Case for Centralized BBU Deployment in JAPAN HUAWEI TECHNOLOGIES CO. Page 19 .. 9G CPRI OTU2 Working OTU2 4..LGU+ Korea CPRI over OTN Solution Remote Site Site 1 Site 2 4. Protection OSN1800 OTU2CP6 OSN1800 Page 20 4. LTD.6GHz LTE-A RRU Cloud BB OSN 1800 Remote Site 4.9G CPRI .9G CPRI CRPI over OTN (w/p) Mobile Backhaul OSN 1800 Core Gateway OSN 1800 4.9G CPRI Remote Site BBU Core Site OSN 1800 Huawei: 18*RRUs per BBU/DU 4.9G CPRI 40 * OTU2 CP6 OTU2 4.9G CPRI Site n 2.9G CPRI HUAWEI TECHNOLOGIES CO. Page 21 . Cons PROS Cons BBU Centralization may decrease device cost including BBP. LTD.HUAWEI’s View on Centralized Cloud BB – Pros Vs. finding balance point in deploying Cloud BB at this stage is Important HUAWEI TECHNOLOGIES CO. BBU Centralization need 40~50 times of CPRI transmission backhaul Coordinated feature. increase cell edge throughput & improve KPI Deploying coordinated feature need additional switching board and box. Considering the benefits and costs of Cloud BB. such as Inter-site CoMP. MPT & BBU box etc.. • • CAPEX saving by 30% • Roof construction/Air Conditioner/Civil Work/Equipment OPEX saving by 50% • Site Rental greatly reduced Page 22 .. LTD. 7 years TCO  Fiber linked to site directly.TCO Saving Case in China Mobile TCO Saving Case Analysis by China Mobile CAPEX Reducing 30% OPEX Reducing 50% 50% Statistics from “China Mobile CRAN white paper” Analysis Baseline  Based on indoor DBS  China southern urban city. not include transmission deployment HUAWEI TECHNOLOGIES CO. Page 23 .Recommend Number of BBUs for Cloud BB Huawei Viewpoint 3 BBU centralized. (fiber to site penetration: 95%) China Mobile 8~10 BBU centralized is recommended for TCO saving. LTD. (Fiber to site penetration: 80%) Small scale is economical (~20 sites) Dutch Telecom HUAWEI TECHNOLOGIES CO. TCO can save 24.5% using direct fiber. 10 sites is balancing point.. 5G 50% 2. LTD.. •Bandwidth reduction to: 1/10 •Less CoMP gain against traditional DBS •Difficult BB upgrade Page 24 .5 0 CPRI 67% 1 2011 RF L1 RF 2012 2014 BB-RF BBU L1 L2 L3 TRP L2 L3 TRP Data: Huawei Research •Bandwidth reduction to: 1/3 Recommended HUAWEI TECHNOLOGIES CO.0 1.5 BBU 1.25G 800M 0.CPRI interface transmission optimization CPRI Compression BW (Gbps) Interface Re-definition BW (Gbps) 2.5 2. Contents Page 25  Challenge and Solution Overview  Cloud BB Hardware Architecture  Cloud BB Coordination Solution HUAWEI TECHNOLOGIES CO.. LTD. . . Lampsite . Indoor Coverage Eg. LTD. Micro Page 26 HUAWEI TECHNOLOGIES CO.Huawei Cloud BB Coordination Solution Interleaving resource  CSPC Joint Process  UL CoMP  CA Eliminate the cell edge  SFN  ASFN Cloud BB Localized Macro IP RAN Distributed Macro Hetnet Eg. Non-CA user . F1 Increases user throughput Increase spectrum resource CA user Cloud BB Combine resources for its serving cell with one frequency and a number of other cells with different frequencies.Intelligent CA to aggregate all possibilities CA works everywhere in Cloud BB scenario CA Scheduling with Load balance Cell 0 + Cell1 CA Cell 0 + Cell 2 CA Cell 1 F2 Cell 2 F2 ~30% F2 Average Throughput Gain  Load balance based on Cell 0 both control plane and F1 user plane resources. LTD. Commercial 2014H1 Page 27 HUAWEI TECHNOLOGIES CO.. Uplink CoMP introduces fastest uplink cell edge speed  UL CoMP Principle Base Band RRU UE1 UE2 cell edge • UE1: in cell edge.0) Inter-Site Uplink CoMP (eRAN7.. • 15%~200% cell edge gain. gain from interference attenuation HUAWEI TECHNOLOGIES CO. gain from joint receiving • UE2 in cell center. • 7%~10% cell average gain • 9%~20% cell average gain Page 28 .0) • 10%~200% cell edge gain. BBU Cloud BB Intra-Site Uplink CoMP (eRAN3. LTD. Combine multiple cells into one logical cell SFN (Single Frequency Network) applicable scenarios • Scenarios 1: High site density. avoid call drop. LTD. improve user experience in cell edge Page 29 .. • Scenario 3: High-speed railway coverage Benefits: Reduce handoff.Adaptive SFN/SDMA eliminates cell edge SFN . short Inter-site distance Normal cells SFN • Scenarios 2: Combine indoor coverage and outdoor coverage SFN SFN Adaptive SFN / SDMA 72% throughput gain (vs. normal SFN) HUAWEI TECHNOLOGIES CO. 7 users on neighbor cells CloudBB UE1 UE2 Cell1 Cell2 * Available in eRAN7. 3 users on center cell.5µs • Cell edge throughput: 150%～200% Gain • Cell average throughput: 25%～40% Page 30 Gain . LTD.0 Fast Coordination • Millisecond level delay based on Cloud BB architecture RB level coordination • RB (Resource Block) level HUAWEI TECHNOLOGIES CO.CSPC improves cell edge throughput 30~220% CSPC:(Coordinated Scheduling & Power Control ) Field Test in shanghai : 8 cells.. TTI level power control • Adjust Tx power level in adjacent cells per TTI • Require time sync: ±1. LTD. Softbank(1) Reusing Existing PHS sites 160K PHS site across the whole country Supper dense BTS deployment High performance: • Omni antenna. Multi-antenna application • High BTS density: ISD = 100 ~ 200m • Limited site space • Need Interference control Low TCO & High Performance of the super dense network is most concerned HUAWEI TECHNOLOGIES CO. Page 31 .Case Study: Huawei Cloud BB in Japan.. Softbank (2) Centralized Cloud BB for Saving TCO Improved Performance Easy Network Expansion Saving Site Rental Cost due to centralized BBU Reuse the dark fiber w/o additional cost on fronthaul High Network Reliability Improved SINR: 10dB By using SFN @ Cloud BB HUAWEI TECHNOLOGIES CO. Page 32 . LTD..Case Study: Huawei Cloud BB in Japan. UL CoMP.. Korea CA Based on Cloud BB to Getting Better User Experience  Quick Network Roll-out LGU+ Background: Rich in fibers & sites macro macro Cloud BB 300 2000 2000 5000 4500 12000 Site On Air Cell On Air USU Front Haul Dec Jan Feb  Improved Network Performance • To stabilize KPI for phase 1 • Phase 2: CA. DL CoMP CS HUAWEI TECHNOLOGIES CO. LTD. Huawei Confidential .Case Study: Huawei Cloud BB in LGU+ Large Scale Cloud BB Help to reduce 70% Site Rental Cost LGU+ Background: Multi-band coexisting 2600M 20M Large Scale Cloud BB • 100+ Golden Cluster • Each Golden Cluster with 10 centralized BBU 40M 2100M 15M 1800M 10M 900M 30M 360 cells per site 3M LGU+. Page 34 . inter-site SFN . CSPC. including CPRI Compression. Distributed BBU(Lite) • Highest Specification： Centralized(120 BBU.Huawei Cloud BB Advantages Summery Huawei Cloud BB Advantages: • Flexible Cloud BB Scenarios: Centralized BBU . WDM • Intelligent coordination : inter-site CA. inter-site UL Comp HUAWEI TECHNOLOGIES CO.Distributed BBU(150~300 BBU) • USU Synchronization ：One Clock source for all BBUs through USU • Transmission ：Support flexible transmission solution.360 cells). LTD.. Distributed BBU(USU). Page 35 . the LTE sites is dense.Cloud BB Deployment Suggestion Very High Request on Transmission Resource. LTD. Fiber to Site is Mandatory • Centralized Cloud BB request 20 to 25 times transmission resource. it has higher gain. Cloud BB suggested to deploy in dense Urban area(Dense site . high traffic scenario) • For CSPC. only the network load reach about 30%.. • Distributed Cloud BB(USU) request at least 10GE in each site. the gain make sense • For inter site CA & Comp. HUAWEI TECHNOLOGIES CO. .APPENDIX USU Product Introduction & Connection HUAWEI TECHNOLOGIES CO. LTD. Page 36 . Uplink CI port connecting to CI DL port on level 2 USU3910 CI DL: SFP module. Connecting to CXP Fabric port between level 1 & level 2 USU3910 CI UL: SFP module. Downlink CI port connecting to CI UL port on USU3910 or UMPT HUAWEI TECHNOLOGIES CO. Page 37 . LTD..USU3910 Introduction USU3910 USU3910 introduction • Switching Unit for BBUs ULPU board • Support 2-Level architecture HEI: Module Specification Remark USU3910 86mm(H) * 442mm(W) * 420mm(D) Temperature : -5~50 UEFU: Switch Fabric Board 12*CXP interface & 14*SFP interface For clock and control panel data interconnection ULPU: Line Process Board 30 QSFP For BBU or USU3910 connection QSFP module. Connecting to BBP HEI port. or UCCU QSFP port on BBU UEFU board Fabric: CXP module. (3 baseband for 1 BBU) HUAWEI TECHNOLOGIES CO. with ICDL (Internal Control Data Link) data UPEU BBP UPEU UMPT BBP … F A N BBP BBP BBP BBP UPEU BBP UPEU BBP UMPT BBU4 BBU0 Max. (6 baseband for 1 BBU).. Configuration 1 USU support 5 BBUs Max. with IBDL (Internal Baseband Data Link) data UEFU ULPU F A N BBP BBP BBP BBP Fiber between UEFU SFP and UMPT CI port. Or 1 USU support 10 BBUs Max.Centrialized Architecture Connection– Level 1: BBU & USU Fiber between ULPU QSFP and BBP HEI port. LTD. Page 38 . Distance 100 meters between USU and BBU Max. LTD.Centrialized Architecture Connection– Leve 2: USU & USU Level 2 USU0 USU1 UEFU UEFU UEFU UEFU Fiber between two CXP ports. Configuration Max 12 Level 1 USU Max 6 Level 2 USU Max 120 BBUs connection under 2 Level USU3910 architecture HUAWEI TECHNOLOGIES CO.. with IBDL (Internal Baseband Data Link) data USU5 … UEFU UEFU Fiber between two CI ports. with ICDL (Internal Control Data Link) data Level 1 UEFU UEFU ULPU ULPU USU0 … UEFU ULPU USU1 USU11 Max. Page 39 . Distance 100 meters between USU and USU Max. Distributed Architecture Connection– Leve 1: BBU & USU Uplink to level 2 USU Fiber between ULPU QSFP and UCCU QSFP port.. Distance Max 10 km between USU and BBU. Max 20km between 2 BBUs Max. LTD. Page 40 . Configuration 1 USU support 25 BBUs Max HUAWEI TECHNOLOGIES CO. with IBDL+ICDL data UEFU ULPU Fiber between Level 1 and Level 2 USU F A N BBP BBP BBP BBP UCCU BBP UPE U F A N UPEU UMPT BBP BBP BBP BBP UCCU BBP UMPT BBU0 UCCU BBU1 UPE U UPEU … F A N BBP BBP BBP BBP UCCU BBP UMPT UPE U UPEU BBU24 QSFP connect to BBP HEI port QSFP QSFP QSFP QSFP QSFP QSFP RUN ALM ACT QSFP connect to ULPU QSFP port in level 1 USU Max. Page 41 .. Configuration Max 6 Level 1 USU Max 1 Level 2 USU Max 150 BBUs connection under 2 Level USU3910 architecture HUAWEI TECHNOLOGIES CO. LTD.Distributed Architecture Connection– Leve 2: USU & USU Level 2 UEFU Fiber between Level 1 and Level 2 USU ULPU Level 1 … UEFU ULPU USU0 UEFU ULPU USU5 Max. Max 20km between 2 BBUs Max. Distance Max 10 km between USU and BBU. .Cloud BB Solution Architecture Overview Core Network sRIO/sCPRI 10GE/40GE Access Network 1 Centralized BBU Access Network 3 2 Distributed BBU(USU) USU3910 sRIO/sCPRI USU3910 GE Access Network USU3910 MSU 10GE Eth Distributed BBU(Lite) BBU BB U USU3910 USU3910 sRIO/sCPRI ICDL Eth USU3910 Eth Eth BBU BBU BBU BBU BBU BBU BB BB BB UCCU UCCU UCCU MPT MPT MPT MPT MPT MPT BBU BBU MPT MPT USU USU BBU HUAWEI TECHNOLOGIES CO. Page 42 . G E 10GE BBU BBU Huawei proprietary. LTD. No spread without permission. The information in this document may contain predictive statements including. . etc. new technology. Therefore.huawei.. such information is provided for reference purpose only and constitutes neither an offer nor an acceptance.Thank you www.com Copyright© 2011 Huawei Technologies Co. All Rights Reserved. Huawei may change the information at any time without notice. future product portfolio. There are a number of factors that could cause actual results and developments to differ materially from those expressed or implied in the predictive statements. Ltd. without limitation. statements regarding the future financial and operating results.