Difference between revisions of "LTE"
From Teknologisk videncenter
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| TA || Tracking Area || A logical concept of an area where a user can move around without updating the MME | | TA || Tracking Area || A logical concept of an area where a user can move around without updating the MME | ||
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| + | | AS || Access Stratum || Acts as data link layer between UE and S-GW | ||
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Revision as of 15:43, 21 January 2014
Abbreviations
| Abb. | meaning | Notes |
|---|---|---|
| LTE | Long Term Evolution | The evolution of UMTS - Often refered to as 4G Mobile network |
| SAE | System Architecture Evolution | The "non-radio" part of the network |
| EPS | Evolved Packet System | EPS is the network consisting of LTE and SAE[1] |
| UE | User Equipment | Typically mobile units |
| PDN | Packet Data network | IP based network |
| UMTS | Universal Mobile Telecommunications Network | Often refered to as 3G Mobile network |
| UTRAN | Universal Terrestrial Radio Access Network | The radio technology used between mobile terminals and the access network |
| EUTRAN | Evolved UTRAN | |
| EPC | Evolved Packet Core | |
| CN | Core Network | |
| QoS | Quality of Service | |
| P-GW | PDN Gateway | Responsible for IP address allocation for the UE and enforment of QoS |
| S-GW | Serving Gateway | All UE IP packets pass through the S-GW. Serves as UE anchor as UE moves between e-NodeBs |
| eNodeB | Evolved Node B | The hardware that communicates directly to the UE |
| PCRF | Policy Control and Charging Rules | Provides the QoS classification and bit rate |
| HSS | Home Subscriber Server | Contains users SAE subscription, such as QoS profile |
| MME | Mobility Management Entity | Control node processing the signaling between the UE and CN |
| NAS | Non Access Stratum | The protocols running between the UE and CN |
| S-TMSI | SAE Temporary Mobile Subscriber Identity | Identifies the UE to the MME |
| TA | Tracking Area | A logical concept of an area where a user can move around without updating the MME |
| AS | Access Stratum | Acts as data link layer between UE and S-GW |