框图
IRAT交互
LTE实体
| Entity Name | Description |
|---|---|
| AAA | Authentication, Authorization and Accounting server |
| AF | Application Function |
| CBC | Cell Broadcast Center |
| eAN/ePCF | Evolved AN/Packet Control Function |
| EIR | Equipment Identity Register |
| eNB | eNodeB |
| ePDG | Evolved/Enhanced Packet Data Gateway |
| GGSN | Gateway GPRS Support Node |
| HSGW | HRPD Serving Gateway |
| HSS | Home Subscriber Server |
| MME | Mobility Management Entity |
| MSC | Mobile Switching Center |
| OCS | Online Charging System |
| PDN | Packet Data Network |
| PCRF | Policy and Charging Rules Function |
| P-GW | Packet Data Network (PDN) Gateway |
| SGSN | Serving GPRS Support Node |
| S-GW | Serving Gateway |
| UE | User Equipment |
| VLR | Visitor Location Register |
LTE协议
| Name | 3GPP / ITU Standard | Interfaces | Description |
|---|---|---|---|
| Diameter | RFC 3588, 29.272,29.273, 29.212, 29.214,29.215, 32.299 | S6a, S6d, S13, S13,’ SWa/d/m/x, STa, S6b,H2, Pi, Gx, Gxa, Gxc, Gy Rx, S9 | Authentication, Authorization and Accounting Protocol |
| GTPv1 | 29.281 | S1-U, X2-U, S4-U, S5/8-U, S12-U | GPRS Tunneling Protocol User Plane Protocol |
| GTPv2 | 29.274 | S3-C, S4-C, S5/8-C, S10, S11 | GPRS Tunneling Protocol for ControlPlane |
| MIPv4 | 29.279 | S2a-C | Mobile IPv4 Protocol |
| NAS | 24.301 | LTE-Uu, S1-MME | Non-Access-Stratum Protocol |
| PDCP | 36.323 | LTE-Uu | Packet Data Convergence Protocol |
| PMIPv6 | 29.275 | S2a-C, S2b-C, S5/8-C | Proxy Mobile IPv6 Protocol |
| RLC | 36.322 | LTE-Uu | Radio Link Control Protocol |
| RRC | 36.331 | LTE-Uu, S1, X2, S3 | Radio Resource Control Protocol |
| S1AP | 36.413 | S1-C | E-UTRAN S1 Application Protocol (S1AP) |
| SCTP | RFC 2960 | S1-MME, X2, SBc,Diameter-basedinterfaces | Stream Control Transport Protocol |
| X2AP | 36.423 | X2-C | E-UTRAN X2 Application Protocol |
LTE接口
| Interface | Description |
|---|---|
| Cx | CSCF HSS |
| Gxa/S7 | PCRF P-GW |
| Gxc | PCRF S-GW |
| Gy | P-GW OCS |
| LTE-Uu | UE eNB |
| Rx+ | PCRF AF |
| SBc | MME CBC |
| SGi | P-GW PDN |
| SGs | MME VLR |
| S1-MME | eNB MME |
| S1-U | eNB S-GW |
| S2a | P-GW HSGW [trusted non-3GPP IP access] |
| S2b | P-GW ePDG |
| S2c | P-GW UE [untrusted non-3GPP and/or 3GPP access] |
| S3 | SGSN MME |
| S4 | SGSN S-GW |
| S5 | S-GW P-GW |
| S6a | MME HSS |
| S7/Gxa | P-GW PCRF |
| S8 | Visited S-GW Home P-GW |
| S9 | Visited PCRF Home PCRF |
| S10 | MME MME |
| S11 | MME S-GW |
| S13 | MME EIR |
| S13’ | SGSN EIR |
| S101 | MME eAN/PCF |
| S102 | MME MSC [1xRTT ] |
| S103 | S-GW HSGW |
| Sv | MME MSC [ WCDMA] |
| SWa | AAA Proxy untrusted non-3GPP access |
| SWd | AAA Server AAA Proxy |
| SWm | ePDG AAA Proxy |
| SWx | HSS AAA |
| X2 | eNB eNB |
IMS实体
| Entity Name | Description |
|---|---|
| BGCF | Breakout Gateway Control Function |
| HSS | Home Subscriber Service |
| I-CSCF | Interrogating Call Session Control Function |
| IM-MGW | IP Multimedia Media Gateway |
| MGCF | Media Gateway Control Function |
| MRF | Media Resource Function |
| P-CSCF | Proxy Call Session Control Function |
| S-CSCF | Serving Call Session Control Function |
IMS接口
| Interface | Description |
|---|---|
| Cx | I-CSCF, S-CSCF HSS |
| ISC | S-CSCF AS |
| Ma | I-CSCF AS |
| Mg | MGCF I-CSCF |
| Mi | S-CSCF BGCF |
| Mj | BGCF MGCF |
| Mn | MGCF IM-MGW |
| Mr | S-CSCF MRFC |
| Mw | P-CSCF I-CSCF S-CSCF |
| Rf/Ro | CSCF BGCF MRFC MGCF AS |
| Sh | AS HSS |