My 3GPP definition notes
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| Word | Meaning | Reference | Notes |
|---|---|---|---|
| Tracking Area | E-UTRAN utilises Tracking Areas (TA) for UE access control, location registration, paging and mobility management. The TA is independent of Location Areas (LA) and Routing Areas (RA). A TA comprises one or more E-UTRA cells Service requirements for E-UTRAN are specified in 3GPP TS 22.278. A Tracking Area (TA) includes one or several E-UTRAN cells. The network allocates a list with one or more TAs to the UE . In certain operation modes, the UE may move freely in all TAs of the list without updating the MME. | 22.011 & 23.002 | |