5 Services offered by the 5G-EIR NF

29.5113GPP5G SystemEquipment Identity Register ServicesRelease 18Stage 3TS

5.1 Introduction

The following NF service is offered by the N5g-eir to check the ME whether it is prohibited listed or not:

– N5g-eir_EquipmentIdentityCheck

Table 5.1-1: NF Services provided by 5G-EIR

Service Name	Description	Consumer
N5g-eir_EquipmentIdentityCheck	This service offered by the 5G-EIR allows the consumer to check the Permanent Equipment Identifier (PEI) and check whether the PEI is in the prohibited list or not.	AMF

The N5g-eir_Equipment Identity Check service is specified in 3GPP TS 23.502 [3], clause 4.2.2.2.2

Table 5.1-2 summarizes the corresponding APIs defined for this specification.

Table 5.1-2: API Descriptions

Service Name	Clause	Description	OpenAPI Specification File	apiName	Annex
N5g-eir_EquipmentIdentityCheck	6.1	5G-EIR Equipment Identity Check Service	TS29511_N5g-eir_EquipmentIdentityCheck.yaml	n5g-eir-eic	A.2

The N5g-eir_Equipment Identity Check service is specified in 3GPP TS 23.502 [3], clause 4.2.2.2.2

5.2 N5g-eir_EquipmentIdentityCheck Service

5.2.1 Service Description

The N5g-eir_Equipment Identity Check service is provided by the 5G-EIR to check the Permanent Equipment Identifier (PEI) whether it is in the prohibited list or not. The service can be consumed by AMF which initiates ME identity check by invoking the N5g-eirEquipmentIdentityCheckGet service operation (see clause 5.2.4.2. of 3GPP TS 23.502 [3]).

During the initial registration the Permanent Equipment Identifier is obtained from the UE. The AMF operator may check the PEI with an EIR.

5.2.2 Service Operations

5.2.2.1 Introduction

5.2.2.2 CheckEquipmentIdentity

5.2.2.2.1 General

The CheckEquipmentIdentity operation shall be used to check the PEI and determine whether the subscriber is allowed to use the equipment, in the following procedures:

– ME Identity check procedure (see clause 4.7 of 3GPP TS 23.502 [3]);

5.2.2.2.2 Procedure using CheckEquipmentIdentity Operation

The NF Service Consumer (e.g. AMF) shall check the PEI by using the HTTP GET method as shown in Figure 5.2.2.2.2-1.

Figure 5.2.2.2.2-1: PEI status check by the NF Service Consumer

1. The NF Service Consumer (e.g. AMF) sends a GET request to the resource representing the PEI equipment Status. It shall include the PEI as a query parameter and, optionally, the SUPI and/or GPSI may also be included.

2a. On success, "200 OK" with the message body containing the equipment status of the PEI.

2b. If the PEI is not known, "404 Not Found" with the message body containing a ProblemDetails object, with the "details" attribute set to "ERROR_EQUIPMENT_UNKNOWN". When receiving the response from the 5G-EIR, the NF Service Consumer (e.g. AMF) shall check the equipment Status and the detailed problem. Dependent upon the result, the NF Service Consume will decide its subsequent actions (e.g. sending a Registration Reject if the 5G-EIR indicates that the PEI is unknown or prohibited listed).

The definition of the equipment-status resource is specified in clause 6.1.3.