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NGN Deployment for China Mobile Qiang Wei [email protected] The 4th CJK NGN Working Group Meeting June 24, 2005, Beijing Agenda • China Mobile Communication Corporation • Softswitch deployment in China Mobile – Deployment on long-distance tandem – Deployment on 3G R4 CS domain – Deployment on IMS • China Mobile’s Proposal China Mobile Communication Corporation • • • • Mobile communication operator The world’s largest mobile communication network The world’s most mobile communication users Provides: – – – – – Mobile phone services Data services VoIP WLAN access …… Softswitch Deployment in China Mobile • Step1: Long-distance tandem softswitch – Replacement to Class-4 trunking switches • Step2: 3G R4 CS domain – Replacement to Class-5 circuit-switch MSCs • Step3: IMS-based NGN – All IP – Multimedia – Access-Irrelevant Step by step! Softswitch long-distance tandem network of China Mobile • On November 27, 2004, China Mobile completed the cut-off of the Softswitch network, the ever largest one in the world; • The network is expected to carry 17951 provincial internetwork traffic across 31 provinces in China, with the total traffic equivalent to one-third of the traditional provincial network traffic. • On the eve of Spring Festival, the traffic is 3 times higher than the average traffic. In such peak traffic, the network shows outstanding performance. • The commercial application of the Softswitch long-distance tandem network of China Mobile proves the possibility of building a network with Softswitch technology. China Mobile’s softswitch tandem network Beijing Beijing Guangzhou Guangzhou TMSC Server2 TMSC Server2 TMSC Server1 TMSC Server2 OAM …… Network Management Dual-homing heartbeat Dual-homing heartbeat IP Bearer Network … TMG/SG … TMG/SG H/LSTP H/LSTP Province 1 SS7 Province 1 Province … Province n Province … Province n Traffic Signaling over TDM SS7 Signaling over IP H.248 BICC OAM China Mobile’s 3G R4 Architecture HLR SCP 信令网 MAP MSC Server A CAP BICC GMSC Server IP网 GSM 2G H.248 ISUP TDM Iu WCDMA R4 MGW Media on IP R4 MGW MSC IMS-based NGN－not only for mobile users Application Layer Service Layer Application Platforms 3rd Party Applications Gaming Conference OSA IM_SSF DMS UC HSS IM Presence LBS PTT CCF RAN Internet2 MGW Control Layer CSCF IMS Core MGCF AGCF GPRS Notwork Transpo rt Layer User Personal PSTN Other PLMNs Bearer Layer Access Network AG I AD 媒媒媒媒 GGSN B O S S WLAN LAN/xDSL 企企 企企 SGSN 企企 企企 IP承载网 Transport Notwork LMDS/3.5G/ WiMax/4G 企企 企企 Group IPI (IP Interworking) • A GSMA project • Service layer Interworking for IMS based IP networks – Service control – Service based charging and balancing • China Mobile is leading IPI trial in Asia • IPI trial in Europe has completed Our Proposals • Further study on IMS-based NGN, including its application scenarios and deployment strategy in different countries. • Push IMS to maturity and commercial use. • Promote inter-working test of IMS. Thank You!