Cisco构筑3G网络基础 拓展3G网络应用.ppt

构筑3g网络基础 拓展3g网络应用 cisco is empowering 3g mobile systems,3g rans transport networks cisco gateway solution ipv6 in mobile networks 3g core network requirements and solution 3g service platform: cmx,cisco 3g solution overview,mobile operator capex,mobile capex trend,limited capex demands the maximization of returns on capital investments, making investment protection critical, particularly in the ran since it accounts for 70% of capex,source: ciscotoscana,source: gartner research as revised by cisco bd,3gpp ran evolution rel6+,backward compatibility with previous architecture and protocols split control and user plane more features should be handled by the (i)nodeb(+) evolution to ip cost-efficiency, scalability and robustness better qos because multimedia faster hand-over, less delay more traffic means more processing rnc cant handle everything,ran-o solution 基于ip的gsm/umts无线传输网优化方案 应用场景 1,rnc,bsc,node-b,bts,mobile operator network plmn,cell-site,optimized gsm and umts ran backhaul: abis + iub over ip,获益于： 减少ran回传网络的资源要求，更快、更便宜地扩容 gsm/gprs/umts网络，而无需更改ran网络的设计； 与 3gpp r5/r6 ip ran 传输协议兼容，支持fr, efr, hr, amr 等语音速率，不影响语音质量 ; 单一的ip汇聚网络，无需增加费用，快速地在现有ran上开展umts业务，简化umts/gsm网络的运维费用和升级成本 与无线厂商设备无关，可以将多厂商设备集成到同一个ran中，运营商级别的可靠性； 基站ip电话和局域网为技术人员提供语音和网络连接； 通过ip/snmp维护、管理和监视基站设备,节省运维成本，提高效率，缩短平均故障恢复时间（mttr）；,sdh e1,transparent to ran vendors,50% measured t1/e1 efficiency gain for gsm/gprs/edge,基于现有基站回传链路实现优化,ran-o case study: ericsson busy hour gsm efficiency gain results,recovered 100% of bandwidth from idle channels,recovered 50%+ of bandwidth from active channels,80%+ total bandwidth recovered,reduce 2 tdm abis e1s to 1 ip e1!,ran-o case study: siemens busy hour gsm eff gain results,50%+ total bandwidth recovered,reduce 2 tdm abis e1s to 1 ip e1!,ran-o case study: nokia busy hour gsm eff gain results,50%+ total bandwidth recovered,reduce 2 tdm abis e1s to 1 ip e1!,rnc,bsc,node-b,bts,mobile operator network plmn,cell-site,optimized gsm and umts ran backhaul: abis + iub over ip,获益于： 可以为基于ip的ran选择多种高容量、低费用的传输技术，不仅仅是 e1，还包括以太网、802.xx； 将umts和hsdpa数据从 e1上分流到基于ip的网络中，节省运维费用； 当网络需求增长时，可以更简单、更快、更便宜地扩容； 从专线向宽带回传网络迁移时，设备提供投资保护； cisco业务保障代理（saa）有效地、及时地监视网络的性能（延迟、抖动、丢包、服务级别等）；,broadband ip backhaul,t1/e1,gsm/gprs/edge path,umts voice and signaling path,hsdpa and umts data offload,ran-o solution 基于ip的gsm/umts无线传输网优化方案 应用场景 2,ran-o solution 基于ip的gsm/umts无线传输网优化方案 应用场景 3,rnc,bsc,bts/ node b,mobile operator network plmn,optimized gsm and umts ran backhaul: abis + iub over ip,获益于: 基站上的ip连接带来新的用户，基站成为多种业务和企业客户的接入点，创造新的利润增长； 基站点路由器可用于连接其他无线设备，可快速部署下一代无线网络技术，无缝地升级到4g；,broadband ip backhaul,e1,what would you do with 1mbps free bandwidth per cell site?,mobile ip/fa, voip, content caching, multi vpn, ip multicasting, qos, ppp, dhcp, routing,.enterprise ip, internet access, ip telephony, ip pbx, ip cameras, video surveillance, wimax.new revenue streams,综合业务基站点,ip phones,ip phones,qos, security,思科无线传输优化方案阶段部署 3g启动阶段,2g用户占绝大多数；3g用户很少；却不断增长 回传资源以e1为主，主要满足abis流量需求，兼顾iub流量 思科无线传输优化方案用途： 利用ip e1的统计复用方式降低tdm链路/时隙的调度和运维难度,umts iub e1,ip e1,gsm abis e1,思科无线传输优化方案阶段部署 3g拓展阶段,新增用户以3g为主，2g用户不断升级到3g，3g用户数激增 新兴高速传输技术（如wimax）可以为运营商带来更多用户 回传资源须同时满足abis、iub和ip流量需求 思科无线传输优化方案用途： 利用ip e1的统计复用方式自动适应abis流量和iub流量的此消彼涨 利用各种高速ip网络分流移动用户数据业务流量,ip e1,gsm abis e1,sdh/fe/xdsl /wimax,umts iub e1,umts iub e1,wimax/wifi,思科无线传输优化方案阶段部署 3g r5/b3g阶段,2g用户量不断萎缩，2g网络逐步停用 3g/b3g/4g基站基本具备ip接口（以fast ethernet为主） 回传资源升级为metro e/atom/mstp等，但仍需支持abis和iub e1 思科无线传输优化方案用途： 提供对3g/b3g/4g多种设备的ip接口 在新的回传网络上提供对原有e1接口的支持，摆脱对e1传输的依赖,gsm abis e1,ip e1,umts iub e1,umts iub e1,umts iub/4g ip fast ethernet,sdh/fe/xdsl /wimax,3g rans transport networks cisco gateway solution ipv6 in mobile networks 3g core network requirements and solution 3g service platform: cmx,cisco 3g solution overview,cisco gateway solution 2.5g gprs architecture,bsc,bts,bts,ms,ms,ggsn,sgsn,charging gateway,dns/dhcp,omc,radius or proxy,gb,ga,ga,ga (gtp),gn,gn/gp (gtp),corporate,gi,border gateway,foreign plmn,billing system,gp,wap gw,radius,pcu,gc,sms-c,msc/vlr,ss7,gprs tunneling protocol (gtp) version 0 (gtp v0),core network ip,gtp-map,cisco gateway solution 3g umts architecture,rnc,nodeb,nodeb,ue,ue,3g-sgsn,iu,gn,gn/gp,internet,corporate,gi,bg,foreign plmn,gp,radio is based on cdma and it is qos aware,gtp version 1 (gtp v1),radio network control,core network ip,3g-ggsn,ga,ga,charging gateway,cisco gateway solution 2.5g mobile architecture cdma 1xev (is856),mobile phone,bsc,bts,msc,gmsc,3 x t1/e1,n x t3/stm1,n x t3/e3,dacs,hlr,auc,eir,vlr,pdsn/fa,pcf,cdma 1xev evolution, also known as high data rate, hdr pdsn packet data services node fa foreign agent ha home agent pcf packet control function r-p ran to pdsn interface a10 bearer data a11 control data mip mobile ip gre generic route encapsulation,r-p a10/a11,pi,r-p,client device,bts,bsc/pcf,pdsn/fa,terminal element,mobile terminal,gre,mip,home agent,gre,cisco gateway solution cisco ggsn/pdsn leadership,enable mobile operators to provide vpn services to corporations/enterprises ip rich-ios feature set industry leading features and stability broadest vpn support in the industry proven iot with all major ran/sgsns 2.5g to 3g migration: software upgrade only high-density, high-availability mature products on mature platforms 7206, mwam module in 6500/7600,mobile wireless solution refresher(1) core network,challenges voice-centric network architecture high cost of ds0 transport proprietary technology rigid and inflexible circuit switched technology,today,point-to-point trunking advantages bandwidth savings opex reduction - efficient capex allocation,phase 1,pstn,customers: t-mobile, globe, amena, mtn, telecorp pcs,mobile wireless solution refresher(2) core network,packet transit/ gateway-msc advantages addition of softswitch further opex savings (collapsing the mesh) optimal routing,soft switch,atm/ip,phase 2,serving msc advantages msc functionality lowered entry, scaling & operations cost deployment flexibility 3g ready,soft switch,atm/ip,phase 3,customers: tim, t-mobile*,umts r99/r4 model leverage ip network for ss7oip,3g rans transport networks cisco gateway solution ipv6 in mobile networks 3g core network requirements and solution 3g service platform: cmx,cisco 3g solution overview,example: ipv6 in 3gpp mobile architecture,isp,umts will go to ip umts will use ipv6 ip (v4 or v6) for user applications ipv6 for ims (mandatory & exclusive) migration from atm to ip(v6) in utran gtp: tunneling over ip (intra & inter plmn),pdn,ipv4,ssd,ipv4/v6,ipv6 (e.g. ims),ssg,nms,bts (2g),nodeb (3g),rnc (3g),bsc (2g),grx (gtp),cg, aaa, dhcp, dns,ggsn (3g),cdn arch.,ggsn (2g),bg,cn (gtp),ran,cn,ran,dns,where ipv6 can appear,ran,nodeb,rnc,ip,ip pdn,atmip,atmip,mgw,msc-s,r5 ims,gtp (transport),ms data,ms ims data (sip application),ip utran (transport),ms,ggsn,sgsn,dual-stack,mandated & exclusive,optional,optional,3g rans transport networks cisco gateway solution ipv6 in mobile networks 3g core network requirements and solution 3g service platform: cmx,cisco 3g solution overview,mp,3gpp umts r5 architecture - ts23.002-540 with im subsystems,external voip & ip mm network,legacy mobile signaling network,application & services (scp),pstn legacy/external,application & services (scp),cs domain (r4),cscf,cscf,mrf,hss,mgcf,e-ggsn,ps- mgw,eir,sgsn server,gmsc server,msc server,hss,bsc,bss/ geran,utran,mw,mm,ms,mg,mr,gi,go,mc,gi,gi,cx,mh,gc,gn,gf,gnu,gr,mc,mc,nc,c,d,mh,cap,cap,cap,nb,gn,sgsn,ranap,iu-ps,iu-ps,iu-cs,ranap,ranap,ranap,voip signal,voip bearer,legacy signal,legacy bearer,architectural overview 3gpp/3gpp2: evolution from tdm to packet,cell site,pcu,node b,bts,1-3 x e1 or t1,e3/stm-1 or t3,aggregation sites,core (mso) sites,cell site router,ip/mpls core,subscriber provisioning,core c” mpls pe/p,aggregation a”,core c” mpls pe/p,core p” mpls p,sip proxy, location, registrar, and feature servers,aaa,media gateway,msc,sip proxy, location, registrar, and feature servers,aaa,media gateway,msc,data center,n x e1 or t1,metro ethernet,cell site router,1-3 x e1 or t1,n x e1 or t1,digital cross connect,metro ethernet,cell site router,site n aggregation a”,pcu,site 1 aggregation a”,digital cross connect,to cell sites,hlr,aaa,contributions to end-to-end sla/qos,3gpp 23.107,ip core 承载网,utran,pstn,msc server,msc server,utran,ip core for umts cn for voice traffic/signaling,classification/marking/policing: nb,mc,per-hop behavior (phb) queuing/dropping,per-hop behavior (phb) queuing/dropping,g msc server,classification/marking/policing: nb,mc,evolution of the mobile core islands of disparate networks,retail locations,retail locations,retail locations,i/t: retail location wide area network core,3 x t1,n x t3,bsc,bts,msc,msc,msc,msc,carrier voice tdm backbone partial mesh amps is 136 gsm cdma,vendor management network,i/t voice tdm network,pbx,pbx,pbx,pbx,pbx,pbx,smsc,hlr,gprs or cdma 1x network,msc,mobile core ip multi service core network: building the network of networks,powered by mpls & mpls applications vpn: isolation of service deliv