CSG Huawei.pdf
- 1. Central Controlled IPRAN dra0-‐khy-‐rtgwg-‐central-‐controlled-‐ipran-‐00.txt Katherine Zhao(Katherine.Zhao@huawei.com) GuangMing Yong (yanggm@gsta.com) Jiehui Hu (hujiehui@huawei.com) 88th IETF @ Vancouver
- 2. HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confidential nPage 2 Introduction • IP RAN (Radio Access Network) is a run solution using IP technology to provide network services between UE devices and mobile core network. • IP RAN has been widely used to provide varies access modes with high scalability and flexibility, it reduced network construction cost and protects codes of investments. • However the existing IP RAN implementation needs to be improved due to Ø Manual configuration Point-by-Point Ø Complex network construct and service deployment Ø Low troubleshooting efficiency • Central Controlled IP RAN (SDN enabled) can further improve the IP RAN and resolve these problems
- 3. HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confidential Central Controlled IP RAN Use Case ATM RNC IP RNC/S-GW/MME BSC GE STM-1 LAST MILE ACCESS AGGREGATION LTE/WiMax Enterprise UMTS HSPA UMTS R99/R4 GSM/GPRS FE ML-PPP E1 TDM E1 GE IMA E1 RNC/SGW/MME RSG RSG CSG AGG CSG CSG AGG Controller Main Backup Control Agent Control Agent Control Agent Central Controller Control Agent Control Agent Control Agent Control Agent Control Agent Control Agent Applied in China Telecom’s Access and Aggregation Network
- 4. HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confidential nPage 4 BS1 BS2 SDN Domain Controller RNC/SGW/ MME/BSC Control Agent Forwarding Node 1 Base Routing Control Agent Forwarding Node 4 Base Routing Control Agent Forwarding Node 2 Base Routing Control Agent Forwarding Node 5 Base Routing Control Agent Forwarding Node 3 Base Routing Control Agent Forwarding Node 6 Base Routing NMG MPLS TDM/ATM/Ethernet TDM/ATM/Ethernet Third Party App CC IP RAN Network Architecture BS1 BS2 RNC/SGW/ MME/BSC MPLS TDM/ATM/Ethernet TDM/ATM/Ethernet RSG CSG ASG ASG RSG CSG BS1 CSG Conversional IP RAN Network Central Controlled IP RAN Network • Major Control functions are moved to controller from network devices • Controller has E2E control capability • Access, Aggregation and RSG are forwarding devices. • Programmability of controller • Open to third party applications • ASG: Aggregation Service Gateway • BS: Base Station • CSG: Cell Site Gateway • RSG: Radio Service Gateway
- 5. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential System Architecture nPage 5 L2 Label Payload Label Low Cost Device Open Architecture MPLS en-caped packet HOST ASR 9K (single chassis OR cluster) Controller Access Node 1 CP-DP MPLS internal network Without LDP Access Node n l Functions of Controller p CP-DP control protocol features p Network resource management features p Network virtualization features p Network protocol layer, IGP,LDP/RSVP p Network service layer,L2 (VPWS/VPLS) VPN, L3 VPN p Fault, Alarm, NB-API l Functions of Forwarding Node p IP/ MPLS forwarding p CP-DP protocol features p Control Agent p Light IGP for connectivity
- 6. HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confidential Page 6 BS1 BS3 I1 I1 I2 I2 SDN Domain I2 RNC/ SGW/ MME/ BSC Contr ol Agen t CSG1 Base Routin g Contr ol Agen t CSG1 Base Routin g SDN Controller ASG1 SDN Controller ASG2 Contr ol Agen t RSG1 Base Routin g Contr ol Agen t RSG2 Base Routin g I6 I4 I4 I3 I5 I5 Built-in Mode: Controller on Device BS1 BS3 I1 I1 I2 I2 SDN Domain SDN Controller I2 RNC/SGW/ MME/BSC Control Agent CSG1 Base Routing Control Agent CSG1 Base Routing Control Agent ASG1 Base Routing Control Agent ASG2 Base Routing Control Agent RSG1 Base Routing Control Agent RSG2 Base Routing I2 I2 I2 I2 I3 I5 I5 Stand-along Mode: Controller on Server Controller Deployment Options
- 7. Page 7 HUAWEI TECHNOLOGIES CO., LTD. Central Controlled IP RAN Overview Mobile Backhaul Central Controlled IP RAN nSimple O&M ØFree Service Planning, Plug and Play ØAutomatic protocols deployment and fast services launch ØFast trouble shooting ATM RNC Last Mile Access Aggregation RNC/SGW/MME RSG RSG CSG BTS NodeB / eNB E1 Eth IP RNC/S-GW/MME NodeB ATM BSC STM-1 AGG AGG CSG CSG Manual configuration point-by-point ATM RNC Last Mile Access Aggregation RNC/SGW/MME RSG RSG BTS NodeB / eNB E1 Eth IP RNC/S-GW/MME NodeB ATM BSC STM-1 CSG CSG CSG AGG AGG Control Plane Control Plane Control Plane Main Backup Central Controller Control Agent Control Agent Control Agent
- 8. Page 8 HUAWEI TECHNOLOGIES CO., LTD. Planning IP Address Dividing IGP Area Planning CSG&AGG ring relations SDN-based Mobile Backhaul：Free Services Planning CSG AGG AGG CSG CSG Planning IP Address Dividing IGP Area Planning CSG&AGG ring relations Mobile Backhaul： Complex services planning Plug and Play，Zero Touch for Basic Network Main Backup Central Controller Control Agent Control Agent Control Agent Current IP RAN Access Solution Central Controlled IP RAN IGP Yes Automatic deployment RSVP-TE Yes No Protocol Solution Free Service Planning, Plug and Play
- 9. Page 9 HUAWEI TECHNOLOGIES CO., LTD. Automatic Protocols Deployment and Fast Services Launch Mobile Backhaul Central Controlled IP RAN Protocol-based point-by-point services launch Service-based end-to-end services launch Improves efficiency of services launch Lowers skill requirements of staff Simple protocol Automatic configuration ATM RNC Last Mile Access Aggregation RNC/SGW/MME RSG RSG BTS NodeB / eNB E1 Eth IP RNC/S-GW/MME NodeB ATM BSC STM-1 AGG AGG CSG CSG CSG IGP/LDP/ RSVP IGP/LDP/ RSVP IGP/LDP/ RSVP IGP/LDP/ RSVP IGP/LDP/ RSVP L2VPN L2VPN ATM RNC Last Mile Access Aggregation RNC/SGW/MME RSG RSG BTS NodeB / eNB E1 Eth IP RNC/S-GW/MME NodeB ATM BSC STM-1 CSG CSG AGG AGG CSG Control Plane Control Plane Control Plane Main Backup Central Controller Control Agent Control Agent Control Agent Virtual-cluster enable Configure remote- interface
- 10. Page 10 HUAWEI TECHNOLOGIES CO., LTD. ATM RNC Last Mile Access Aggregation RNC/SGW/MME RSG RSG CSG BTS NodeB/eNB E1 Eth IP RNC/S-GW/MME NodeB ATM BSC STM-1 AGG AGG CSG CSG Fast Trouble shooting Mobile Backhaul SDN-based Mobile Backhaul ATM RNC Last Mile Access Aggregation RNC/SGW/MME RSG RSG BTS NodeB/eNB E1 Eth IP RNC/S-GW/MME NodeB ATM BSC STM-1 CSG CSG CSG AGG AGG Control Plane Control Plane Control Plane Main Backup Central Controller Control Agent Control Agent Control Agent NMS NMS failure failure ② Trouble shooting on each node ① Each node sends alarm independently ② Trouble shooting only on Central Controller ① Alarm analysis for Locating root causes of fault
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