name: PDN-GW
full_form: Packet Data Network Gateway
context: The Mobile Equipment Identity Check Procedure permits the operator(s) of the MME and/or the HSS and/or the PDN GW to check the Mobile Equipment's identity (e.g. to check that it has not been stolen, or, to verify that it does not have faults). The ME Identity can be checked by the MME passing it to an Equipment Identity Register (EIR) and then the MME analysing the response from the EIR in order to determine its subsequent actions (e.g. sending an Attach Reject if the EIR indicates that the Mobile Equipment is prohibited). The ME identity check procedure is illustrated in Figure 5.3.10.5-1. Figure 5.3.10.5-1: Identity Check Procedure 1. The MME sends Identity Request (Identity Type) to the UE. The UE responds with Identity Response (Mobile Identity). 2. If the MME is configured to check the IMEI against the EIR, it sends ME Identity Check (ME Identity, IMSI) to EIR. The EIR responds with ME Identity Check Ack (Result). NOTE: The Identity Check Procedure is typically executed as part of the Attach procedure (see clause 5.3.2.1).
description: The Packet Data Network Gateway (PDN GW) is a network function that serves as an entry and exit point for data traffic between the Evolved Universal Terrestrial Radio Access Network (E-UTRAN) and external packet data networks. It plays a role in the Mobile Equipment Identity Check Procedure, allowing operators to verify the identity of mobile equipment and ensure it has not been stolen or is faulty.
explanation: PDN GW is classified as a Network Function because it participates in the Mobile Equipment Identity Check Procedure, interacting with other network functions like the MME and EIR to validate mobile equipment identities. This aligns with its role in managing data traffic and ensuring secure connections within the 3GPP-defined network architecture.
section_title: 5.3.10.5 ME identity check procedure
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biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,I-Network,I-Network,I-Network,I-Network,I-Network,O,O,O,O,O,O,O,O,O,O,O,O,B-Device,I-Device,B-Parameter,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O