TAC (Tracking Area Code) and TAI (Tracking Area Identifier) are terms used in mobile networks, particularly in LTE and 5G systems. The TAC is a unique code that identifies a tracking area within a network, which is used for managing mobile device locations and optimizing communication within that area. TAI refers to a broader concept, where the Tracking Area Identifier encompasses both the TAC and additional information for identifying a tracking area in a more detailed manner.
What is TAC in 5G?
In 5G networks, the TAC (Tracking Area Code) serves a similar function as in LTE networks. It identifies a specific tracking area where user devices are located. The TAC helps the network manage device mobility and optimize resource allocation within that tracking area.
TAI, or Tracking Area Identifier, in 5G is an identifier that combines the TAC with additional information to uniquely identify a tracking area. This identifier is used by the network to manage and route communication for mobile devices as they move between different tracking areas.
The tracking area list for LTE includes a list of TACs that a mobile device can be in or move between. This list helps the network efficiently manage device location updates and handovers as the device travels through different tracking areas. The list is used to optimize network performance and ensure seamless connectivity for the user.
