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5g identifiers

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In the context of 5G (fifth generation) mobile networks, several key identifiers and terms are commonly used. Here are some of them:

  1. IMSI (International Mobile Subscriber Identity): This is a unique identifier associated with a subscriber on a mobile network. It is stored on the SIM card and is used for identifying and authenticating subscribers on the network.
  2. IMEI (International Mobile Equipment Identity): This is a unique identifier for a mobile device. It is used by the network to identify valid devices and can be used to block stolen or lost phones from accessing the network.
  3. TMSI (Temporary Mobile Subscriber Identity): TMSI is a temporary identifier assigned to a mobile device when it attaches to a network. It is used to enhance security by reducing the frequency with which the IMSI is transmitted over the air.
  4. RAN (Radio Access Network) Node Identity: This identifier is associated with the radio access network element that a device is communicating with. It helps in tracking the device's location within the network.
  5. UE (User Equipment) Identity: This refers to the identity associated with the user equipment, which includes the mobile device and its SIM card. It encompasses both the IMSI and IMEI.
  6. GUTI (Globally Unique Temporary Identity): GUTI is used in 5G networks as a temporary identity for a user. It is used to improve user privacy by reducing the exposure of the IMSI.
  7. S-TMSI (Serving Temporary Mobile Subscriber Identity): This identifier is used within the LTE (Long-Term Evolution) part of the 5G network to identify a mobile device within a specific serving cell.
  8. PLMN (Public Land Mobile Network) Identifier: This is the identifier for the mobile network to which a subscriber belongs. It consists of a Mobile Country Code (MCC) and a Mobile Network Code (MNC).
  9. NR Cell Identity: In 5G New Radio (NR), the cell identity is an identifier associated with a specific cell in the network.

These identifiers play crucial roles in the functioning and security of 5G networks, facilitating communication and ensuring the integrity of the network and user devices.