EPC组网方案

1©NokiaSiemensNetworks2011ForinternaluseTochangethedocumentinformationinthefooter,press[Alt+F8]andusethe„Nokia_Siemens_Networks_–_Change_Document_Information“macro.R255G204B0R255G130B0R110G6B115R163G166B173R104G113B122R234G234B234R170G15B30R0G0B0R255G255B255Supportingcolors:R60G170B0Primarycolors:EPC组网方案2©NokiaSiemensNetworks2011ForinternaluseTochangethedocumentinformationinthefooter,press[Alt+F8]andusethe„Nokia_Siemens_Networks_–_Change_Document_Information“macro.R255G204B0R255G130B0R110G6B115R163G166B173R104G113B122R234G234B234R170G15B30R0G0B0R255G255B255Supportingcolors:R60G170B0Primarycolors:LTE/EPC组网方案•LTE/EPC网络架构•LTE/EPC网元组织•LTE/EPC寻址方案•LTE/EPCIP地址需求•LTE/EPC路由倒换机制及影响3©NokiaSiemensNetworks2011ForinternaluseTochangethedocumentinformationinthefooter,press[Alt+F8]andusethe„Nokia_Siemens_Networks_–_Change_Document_Information“macro.R255G204B0R255G130B0R110G6B115R163G166B173R104G113B122R234G234B234R170G15B30R0G0B0R255G255B255Supportingcolors:R60G170B0Primarycolors:LTE/EPC网络架构其中各接口的承载原则如下：EPC与TD-LTE无线网之间的S1接口以及X2接口通过PTN承载。MME/SGSN与其它核心网网元之间的接口，如与HSS/HLR之间的S6a接口、与MSCServer之间的SGs接口，以及与PCRF连接的Gx接口，通过IP承载网承载。EPC核心网内部的S10、S11、S5/S8，以及与2G/TD分组域互通的Gn/Gp接口采用CMNet承载。SGi、Gi接口采用CMNet承载。GGSNGbIuGnS1-MMES1-US11GiUserplaneControlplaneGnBSCRNCSGSNS10NodeBeNodeBMMES5P-GWS-GWLTE3G2GSGiOperatorServicesInternetCorporateServicesGnSAE-GWMKuHSS/HLRGrS6a4©NokiaSiemensNetworks2011ForinternaluseTochangethedocumentinformationinthefooter,press[Alt+F8]andusethe„Nokia_Siemens_Networks_–_Change_Document_Information“macro.R255G204B0R255G130B0R110G6B115R163G166B173R104G113B122R234G234B234R170G15B30R0G0B0R255G255B255Supportingcolors:R60G170B0Primarycolors:LTE/EPC组网方案•LTE/EPC网络架构•LTE/EPC网元组织•LTE/EPC寻址方案•LTE/EPCIP地址需求•LTE/EPC路由倒换机制及影响5©NokiaSiemensNetworks2011ForinternaluseTochangethedocumentinformationinthefooter,press[Alt+F8]andusethe„Nokia_Siemens_Networks_–_Change_Document_Information“macro.R255G204B0R255G130B0R110G6B115R163G166B173R104G113B122R234G234B234R170G15B30R0G0B0R255G255B255Supportingcolors:R60G170B0Primarycolors:EPC网元组织IP承载网CE-1Flexi-NSSAE-GWMMEHSSCMNETDNSCGFlexi-NGeNBIP承载网CE-2eNBPTNIP承载网CMNETFWCMNETCE-2CMNETCE-1PTNCE-1PTNCE-2计费交换机-1计费交换机-2计费网/BOSSS11/Gn/S10S1-MMESGi/S11/GnDNSS1-UGzS6aSGsMME的接口包括S1-MME，S10、S11、DNS、Gn、S6a、SGs和O&M。SAE-GW接口包括S1-US11、DNS、S5/S8、Gn、SGi、Gx、GyO&M。HSS接口包括S6a，O&M,HSStoBOSS接口。6©NokiaSiemensNetworks2011ForinternaluseTochangethedocumentinformationinthefooter,press[Alt+F8]andusethe„Nokia_Siemens_Networks_–_Change_Document_Information“macro.R255G204B0R255G130B0R110G6B115R163G166B173R104G113B122R234G234B234R170G15B30R0G0B0R255G255B255Supportingcolors:R60G170B0Primarycolors:MME站点方案（拓扑）IP承载网CE-1MMECMNETeNBIP承载网CE-2eNBPTNIP承载网CMNETFWCMNETCE-2CMNETCE-1PTNCE-1PTNCE-2DCN交换机-1DCN交换机-2DCN网IPDU-0IPDU-1SWU-0SWU-1OMU-0OMU-1S11/Gn/S10S1-MMEO&MS6a/SGs7©NokiaSiemensNetworks2011ForinternaluseTochangethedocumentinformationinthefooter,press[Alt+F8]andusethe„Nokia_Siemens_Networks_–_Change_Document_Information“macro.R255G204B0R255G130B0R110G6B115R163G166B173R104G113B122R234G234B234R170G15B30R0G0B0R255G255B255Supportingcolors:R60G170B0Primarycolors:MME站点方案（描述）IPDU-0和IPDU-1单元为1+1主备用工作方式，专门用于S10、S11、DNS查询接口、Gn/Gp接口连接。每个IPDU单元各采用2个独立的1G光口（或电口），分别连接到2个CMNETCE。CMNETCE需启用VRRP协议以保证冗余性MME中S1-MME、S6a和SGs接口的处理由IPDU单元完成，再通过二层交换单元SWU-0和SWU-1分别连接到PTNCE和IP承载网CE。SWU单元工作模式为负载分担。2个SWU单元各采用1个独立1G光口（或电口）分别连接到2个PTN网CE作为S1-MME接口，同时各采用1个独立1G光口（或电口）分别连接到2个IP承载网CE作为S6a和SGs接口。S1-MME、S6a和SGs接口均需启用SCTPMulti-homing以保证冗余性。其中S6a和SGs接口用不同的VLAN和IP地址段区分，要求CE侧能够根据VLAN或IP地址段对数据流进行分离。OMU-0和OMU-1单元为1+1主备用工作方式，专门用于网管O&M接口连接。每个OMU单元各采用2个独立的1G光口（或电口），分别连接到2个DCN交换机。8©NokiaSiemensNetworks2011ForinternaluseTochangethedocumentinformationinthefooter,press[Alt+F8]andusethe„Nokia_Siemens_Networks_–_Change_Document_Information“macro.R255G204B0R255G130B0R110G6B115R163G166B173R104G113B122R234G234B234R170G15B30R0G0B0R255G255B255Supportingcolors:R60G170B0Primarycolors:SAE-GW站点方案（拓扑）SAE-GWCMNETeNBeNBPTNCMNETFWCMNETCE-2CMNETCE-1PTNCE-1PTNCE-2DCN交换机-1DCN交换机-2DCN网SB-0MB-0MB-1SB-11…计费交换机-1计费交换机-2计费网/BOSSS11/GnS1-UO&MSGiSGsIP承载网CE-1IP承载网CE-2IP承载网GyGx9©NokiaSiemensNetworks2011ForinternaluseTochangethedocumentinformationinthefooter,press[Alt+F8]andusethe„Nokia_Siemens_Networks_–_Change_Document_Information“macro.R255G204B0R255G130B0R110G6B115R163G166B173R104G113B122R234G234B234R170G15B30R0G0B0R255G255B255Supportingcolors:R60G170B0Primarycolors:SAE-GW站点方案（描述）SAE-GW的业务处理单元为SB单元，每个SB单元有最多16个1G光口（或电口）和4个10G光口与外部连接。SB单元最大数量为12个，为N+负载分担工作模式每个SB单元采用2个独立的10G光口分别连接到2个PTNCE，作为S1-U接口每个SB单元采用2个独立的1G光口（或电口）分别连接到2个CMNETCE，作为S11、S5/S8、Gn/Gp接口每个SB单元采用2个独立的10G光口分别连接到2个CMNETCE，作为SGi、Gi接口每个SB单元采用2个独立的1G光口（或电口）分别连接到2个计费交换机（或DCN交换机）作为Gz/Ga接口每个SB单元采用2个独立的1G光口（或电口）分别连接到2个计费交换机（或DCN交换机）作为Gy接口每个SB单元采用2个独立的1G光口（或电口）分别连接到2个IP承载网CE作为Gx接口MB-0和MB-1单元为主备用工作方式，用于网管O&M接口。每个MB单元各采用2个独立的1G光口（或电口）分别连接到2个DCN交换机10©NokiaSiemensNetworks2011ForinternaluseTochangethedocumentinformationinthefooter,press[Alt+F8]andusethe„Nokia_Siemens_Networks_–_Change_Document_Information“macro.R255G204B0R255G130B0R110G6B115R163G166