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7.3.3.2.2 Test entrance criteria
1) The Near-RTR-DUT has functionality to initiate A1-EI Query EI job identifiers procedure. 2) The DUTs supports a known set of EI types (two or more) used for this test. 3) The agreed eiTypeIds are known to the protocol analyser.
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7.3.3.2.3 Test methodology
7.3.3.2.3.1 Initial conditions 1) The Non-RTR-DUT has A1-EI Producer service ready and available to receive HTTP requests from the Near-RTR-DUT. 2) The Non-RTR-DUT supports the two different test configurations listed below to test complete functionality: a) Non-RTR-DUT has no EI job available for any of the EI types s...
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7.3.3.3 Query EI job (positive case)
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7.3.3.3.1 Test description and applicability
The purpose of this test case is to test query EI job functionality of A1-EI Producer and A1-EI Consumer as specified in A1AP [4] clause 5.3.4.5. The expected outcome is successful retrieval of EI job for the given eiJobId. This test case is conditionally mandatory if the DUTs claim to support A1-EI service and the Que...
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7.3.3.3.2 Test entrance criteria
1) The Near-RTR-DUT has functionality to initiate A1-EI Query EI job procedure. 2) An EI job exists in the Non-RTR-DUT and the eiJobId is known to the Near-RTR-DUT. 3) The eiJobId is known to the protocol analyser.
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7.3.3.3.3 Test methodology
7.3.3.3.3.1 Initial conditions 1) The Non-RTR-DUT has A1-EI Producer service ready and available to receive HTTP requests from the Near-RTR-DUT. ETSI ETSI TS 103 989 V4.2.0 (2025-05) 84 7.3.3.3.3.2 Procedure Step 0. Enable protocol analyser to capture and decode the A1 signalling between the DUTs via the tap interface....
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7.3.4.1 Update EI job (positive case)
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7.3.4.1.1 Test description and applicability
The purpose of this test case is to test update EI job functionality of A1-EI Producer and A1-EI Consumer as specified in A1AP [4] clause 5.3.4.4. The expected outcome is successful update of the EI job. This test case is conditionally mandatory if the DUTs claim to support A1-EI service and Update EI job procedure.
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7.3.4.1.2 Test entrance criteria
1) The Non-RTR-DUT has functionality to initiate A1-EI Update EI job procedure. 2) An EI job exists in the Non-RTR-DUT and the eiTypeID and eiJobID are known to the Near-RTR-DUT. 3) The eiTypeID and the JSON schemas of the EI type used for this test are available and used in Near-RTR-DUT to formulate the Update EI job ...
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7.3.4.1.3 Test methodology
7.3.4.1.3.1 Initial conditions 1) The Non-RTR-DUT has A1-EI Producer service ready and available to receive HTTP requests from the Near-RTR-DUT. 7.3.4.1.3.2 Procedure Step 0. Enable protocol analyser to capture and decode the A1 signalling between the DUTs via the tap interface. Step 1. Initiate appropriate action in t...
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7.3.5.1 Delete EI job (positive case)
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7.3.5.1.1 Test description and applicability
The purpose of this test case is to test the delete EI job functionality of A1-EI Producer and A1-EI Consumer as specified in A1AP [4] clause 5.3.4.6. The expected outcome is successful validation of the Delete EI job request This test case is conditionally mandatory if the DUTs claim to support A1-EI service.
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7.3.5.1.2 Test entrance criteria
1) The Non-RTR-DUT has functionality to initiate A1-EI Delete EI job procedure. 2) An EI job exists in the Non-RTR-DUT and the eiJobId is known to the Near-RTR-DUT. 3) The eiJobId is known to the protocol analyser.
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7.3.5.1.3 Test methodology
7.3.5.1.3.1 Initial conditions 1) The Non-RTR-DUT has A1-EI Producer service ready and available to receive HTTP requests from the Near-RTR-DUT. 7.3.5.1.3.2 Procedure Step 0. Enable protocol analyser to capture and decode the A1 signalling between the DUTs via the tap interface. Step 1. Initiate appropriate action in t...
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7.3.6.1 Query EI job status (positive case)
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7.3.6.1.1 Test description and applicability
The purpose of this test case is to test the query EI job status functionality of A1-EI Producer and A1-EI Consumer as specified in A1AP [4] clause 5.3.4.7. The expected outcome is successful retrieval of EI job status object. This test case is conditionally mandatory if the DUTs claim to support A1-EI service and the ...
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7.3.6.1.2 Test entrance criteria
1) The Near-RTR-DUT has functionality to initiate Query EI job status procedure. 2) An EI job exists in the Non-RTR-DUT and the eiJobId is known to the Near-RTR-DUT. 3) The agreed eiTypeId is known to the protocol analyser.
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7.3.6.1.3 Test methodology
7.3.6.1.3.1 Initial conditions 1) The Non-RTR-DUT has A1-EI Producer service ready and available to receive HTTP requests from the Near-RTR-DUT. 7.3.6.1.3.2 Procedure Step 0. Enable protocol analyser to capture and decode the A1 signalling between the DUTs via the tap interface. Step 1. Initiate appropriate action in t...
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7.3.6.2 Notify EI job status (positive case)
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7.3.6.2.1 Test description and applicability
This purpose of this test case is to test the notify EI job status functionality of A1-EI Producer and AI-EI Consumer as specified in A1AP [4] clause 5.3.4.8. The expected outcome is successful request and delivery of EI job status notification. This test case is optional if the DUTs claim to support A1-EI service and ...
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7.3.6.2.2 Test entrance criteria
The test entrance criteria for Create EI job specified in clause 7.3.2.1.2 applies. And in addition: 1) Near-RTR-DUT has the functionality to request and receive EI job status notification. 2) Non-RTR-DUT has the functionality to provide EI job status notification. 3) Non-RTR-DUT and Near-RTR-DUT have agreed on a how t...
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7.3.6.2.3 Test methodology
7.3.6.2.3.1 Initial conditions The initial conditions for Create EI job specified in clause 7.3.2.1.3.1 applies. And in addition: 1) The Near-RTR-DUT supports generation of an EiJobStatusObject based on the EI job status schema of the agreed EI type used for this test. 2) The Near-RTR-DUT has HTTP server ready and avai...
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7.3.7.1 Deliver EI job result (positive case)
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7.3.7.1.1 Test description and applicability
This purpose of this test case is to test the deliver EI job result functionality of A1-EI Producer and A1-EI Consumer as specified in A1AP [4] clause 5.3.5.2. The expected outcome is successful EI job result request and delivery of EI job results. This test case is optional if the DUTs claim to support A1-EI service.
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7.3.7.1.2 Test entrance criteria
The test entrance criteria for Create EI job specified in clause 7.3.2.1.2 applies. And in addition: 1) Non-RTR-DUT and Near-RTR-DUT have agreed on a how to trigger the EI job results delivery based on supported EI types and functionality in the Non-RTR-DUT.
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7.3.7.1.3 Test methodology
7.3.7.1.3.1 Initial conditions The initial conditions for Create EI job specified in clause 7.3.2.1.3.1 applies. And in addition: 1) The Near-RTR-DUT has HTTP server ready and available to receive HTTP requests from the Non-RTR-DUT for EI job result delivery. NOTE: The Near-RTR-DUT is expected to provide callback URI (...
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1 Scope
The present document specifies the data model and the data types that are used in the body of the procedures in the A1 interface.
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2 References
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2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a...
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2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i...
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3 Definition of terms, symbols and abbreviations
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3.1 Terms
For the purposes of the present document, the terms given in A1GAP [2], A1AP [3] and the following apply: ScopeIdentifier: structured data type representing the scope identifier NOTE: See A1AP [3]. Statement: structured data type representing a policy statement that is policy type specific NOTE: See A1AP [3].
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3.2 Symbols
Void.
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3.3 Abbreviations
For the purposes of the present document, the abbreviations given in A1GAP [2], A1AP [3] and the following apply: AMF Access and Mobility Management Function E1AP E1 Application Protocol ETSI ETSI TS 103 988 V9.0.0 (2025-05) 11 F1AP F1 Application Protocol gNB-CU-CP gNB Central Unit Control Plane GUAMI Globally Unique ...
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4 A1 Application data model
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4.1 Introduction
The present document together with A1AP [3] contains a REST method realization of the A1 interface architecture and the A1 procedures identified in A1GAP [2]. A1AP [3] contains the service description, service operations, resource indicators and the API definition (including the OpenAPI document) for the A1 services. T...
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4.2 Compatibility of A1 type definitions
The version number of the present document indicates that there may be implications for the compatibility between implementations of policy types and/or EI types defined in different versions of the present document. The first two-digit value of the present document is incremented when: • at least one policy type and/o...
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5 Generic aspects and common data types
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5.1 Encoding of attributes in A1 data types
The encoding of 3GPP attributes into JSON is based on their original definitions, and their value ranges, rather than on encodings used in other protocols or solutions sets. The definitions are referred to in the data type definitions (see clauses 6.2 and 6.3) and the corresponding encodings are seen in the type defini...
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5.2 Current type definitions
The present document defines the policy types, EI types and common data types listed in table 5.2-1. Table 5.2-1: Type definitions in the present document Type Type name Type version Definition Common data types common 1.0.0 See clause 7.1.2.1 Policy types QoS target QoSTarget 4.0.1 See clause 7.2.1 QoE target QoETarge...
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6 A1-P data model
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6.1 Introduction
This clause specifies the application data model and data types supported by the A1-P API specified in A1AP [3]). The data model is based on policy statements that include attributes and are combined with a scope identifier into policy objects. Simple data types and enumerations can be referenced from structured data t...
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6.2 Simple data types and enumerations
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6.2.1 Simple data types
The simple data types are defined in table 6.2.1-1. Table 6.2.1-1: Definition of simple data types for scope and statements Type Name Type Definition Description Applicability RanUeId string UE identifier, based on RAN UE Id (see ETSI TS 138 463 [8] and ETSI TS 138 473 [9]). Encoded as 16 hexadecimal characters. 5G RAN...
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6.2.2 Enumerations
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6.2.2.1 PreferenceType
The enumeration PreferenceType represents the preference of a specific network resource (e.g. cell usage). It shall comply with the provisions defined in table 6.2.2.1-1. ETSI ETSI TS 103 988 V9.0.0 (2025-05) 14 Table 6.2.2.1-1: Definition of PreferenceType Enumeration value Description Applicability SHALL equals to se...
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6.2.2.2 EnforcementStatusType
The enumeration EnforcementStatusType represents if a policy is enforced or not. It shall comply with the provisions defined in table 6.2.2.2-1. Table 6.2.2.2-1: Definition of EnforcementStatusType Enumeration value Description Applicability ENFORCED equals that the policy is enforced NOT_ENFORCED equals that the polic...
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6.2.2.3 EnforcementReasonType
The enumeration EnforcementReasonType represents the reason why notification is sent (e.g. why enforcement status has changed). It also represents the latest reason for change of enforcement status to NON_ENFORCED in case policy status is queried. It shall comply with the provisions defined in table 6.2.2.3-1. Table 6....
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6.2.2.4 AvoidanceType
The enumeration AvoidanceType represents the avoidance of a specific network resource (e.g. cell usage). It shall comply with the provisions defined in table 6.2.2.4-1. Table 6.2.2.4-1: Definition of AvoidanceType Enumeration value Description Applicability AVOID equals to avoid selecting the network resource avoid sel...
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6.3 Structured data types
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6.3.1 ScopeIdentifier
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6.3.1.1 Introduction
A1 policies are defined in A1GAP [2] as containing a scope identifier and one or more policy statements where policy statements contain policy objectives and/or policy resources. This clause defines the structured data type ScopeIdentifier. The ScopeIdentifier contains the attributes defined in table 6.3.1.1-1: Table 6...
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6.3.1.2 GroupId
GroupId is defined based on different RF selection priority parameters for 4G and 5G networks. GroupId does not explicitly define a UE group, and does not enable any group management operations, but is a property that several UE can share and thereby enables implicit identification of a dynamic set of UEs for which the...
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6.3.1.3 SliceId
SliceId is based on the definition of S-NSSAI (see ETSI TS 123 003 [10]) and includes a PLMN identifier. The SliceId contains the attributes defined in table 6.3.1.3-1: Table 6.3.1.3-1: Definition of type SliceId Attribute name Data type P Cardinality Description Applicability sst integer M 1 Slice/Service type part of...
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6.3.1.4 QosId
QosId is defined based on different QoS identifiers for 4G and 5G networks. The QosId contains the attributes defined in table 6.3.1.4-1: Table 6.3.1.4-1: Definition of type QosId Attribute name Data type P Cardinality Description Applicability qcI integer C 0..1 QoS Class Identifier (see ETSI TS 123 203 [16]). Value r...
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6.3.1.5 CellId
CellId is based on the definition of the global cell identifiers ECGI and NCGI (see ETSI TS 123 003 [10]) for 4G and 5G RANs. ETSI ETSI TS 103 988 V9.0.0 (2025-05) 17 The CellId contains the attributes defined in tables 6.3.1.5-1 and 6.3.1.5-2: Table 6.3.1.5-1: Definition of type CId Attribute name Data type P Cardinal...
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6.3.1.6 PlmnId
This clause contains the definition of the structured data type PlmnId. PlmnId is based on the definition in ETSI TS 123 003 [10]. The PlmnId contains the attributes defined in table 6.3.1.6-1: Table 6.3.1.6-1: Definition of type PlmnId Attribute name Data type P Cardinality Description Applicability mcc string M 1 Mob...
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6.3.1.7 UeId
This clause contains the definition of the structured data type UeId. Table 6.3.1.7-1: Definition of type GuRanUeId Attribute name Data type P Cardinality Description Applicability globalGnbId GlobalGnbId M 1 Global GNB ID, see clause 6.3.1.8 5G RAN ranUeId RanUeId M 1 RAN UE ID, see clause 6.2.1 5G RAN Table 6.3.1.7-2...
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6.3.1.8 GlobalGnbId
This clause contains the definition of the structured data type GlobalGnbId. This is based on Global gNB ID defined in ETSI TS 138 413 [21], clause 9.3.1.6. The GlobalGnbId contains the attributes defined in tables 6.3.1.8-1 and 6.3.1.8-2: Table 6.3.1.8-1: Definition of type GnbId Attribute name Data type P Cardinality...
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6.3.1.9 GuAmI
This clause contains the definition of the structured data type GuAmI. This is based on GUAMI defined in ETSI TS 138 413 [21], clause 9.3.3.3. The GuAmI contains the attributes defined in table 6.3.1.9-1: Table 6.3.1.9-1: Definition of type GuAmI Attribute name Data type P Cardinality Description Applicability plmnId P...
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6.3.1.10 GuMmeI
This clause contains the definition of the structured data type GuMmeI. This is based on GUMMEI defined in ETSI TS 136 413 [22], clause 9.2.3.9. The GuMmeI contains the attributes defined in table 6.3.1.10-1: Table 6.3.1.10-1: Definition of type GuMmeI Attribute name Data type P Cardinality Description Applicability pl...
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6.3.2 Structured data types for statements
This clause contains definitions of structured data types that are used in statements for policy objectives and/or statements for policy resources. The CellIdList contains the attributes defined in table 6.3.2-1: Table 6.3.2-1: Definition of type CellIdList Attribute name Data type P Cardinality Description Applicabili...
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6.3.3 Statements for policy objectives
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6.3.3.1 Introduction
A1 policies are defined in A1GAP [2] as containing a scope identifier and one or more policy statements where policy statements contain policy objectives and/or policy resources. This clause defines the structured data types and attributes to be used for policy objectives. Table 6.3.3.1-1 specifies the data types defin...
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6.3.3.2 QoS target
The QosObjectives statement contains the attributes defined in table 6.3.3.2-1: Table 6.3.3.2-1: Definition of statement type QosObjectives Attribute name Data type P Cardinality Description Applicability gfbr number C 0..1 Guaranteed Flow Bit Rate, see ETSI TS 123 501 [11] 5G RAN mfbr number C 0..1 Maximum Flow Bit Ra...
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6.3.3.3 QoE target
The QoeObjectives statement contains the attributes defined in table 6.3.3.3-1: Table 6.3.3.3-1: Definition of statement type QoeObjectives Attribute name Data type P Cardinality Description Applicability qoeScore number C 0..1 mean opinion score (MOS) value between 1 and 5, it can be either e.g. video MOS as specified...
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6.3.3.4 UE level targets
The UeLevelObjectives statement contains the attributes defined in table 6.3.3.4-1: Table 6.3.3.4-1: Definition of statement type UeLevelObjectives Attribute name Data type P Cardinality Description Applicability ulThroughput number C 0..1 the average UL RAN UE throughput as the UE performance targets or RAN optimizati...
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6.3.3.5 Slice SLA target
The SliceSlaObjectives statement contains the attributes defined in table 6.3.3.5-1: Table 6.3.3.5-1: Definition of statement type SliceSlaObjectives Attribute name Data type P Cardinality Description Applicability maxNumberOfUes number C 0..1 This attribute describes the partial SLA target for providing maximum number...
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6.3.3.6 Load balancing targets
The LbObjectives statement contains the attributes defined in table 6.3.3.6-1: Table 6.3.3.6-1: Definition of statement type LbObjectives Attribute name Data type P Cardinality Description Applicability targetPrbUsg number M 1 The target PRB usage in percent. The denominator is the total number of PRBs in the cell, and...
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6.3.3.7 Energy saving targets
The EsObjectives statement contains the attributes defined in table 6.3.3.7-1: Table 6.3.3.7-1: Definition of statement type EsObjectives Attribute name Data type P Cardinality Description Applicability targetPeeEnergy number C 0..1 Target average value of energy consumption PEE.Energy of PNF such as O-RU in kWh over t...
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6.3.4 Statements for policy resources
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6.3.4.1 Introduction
A1 policies are defined in A1GAP [2] as containing a scope identifier and one or more policy statements where policy statements contain policy objectives and/or policy resources. This clause defines the structured data types and attributes to be used for policy resources. Table 6.3.4.1-1 specifies the data types define...
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6.3.4.2 Traffic steering preference
The TspResources statement is defined in table 6.3.4.2-2 as an array of the type TspResource defined in table 6.3.4.2-1. Table 6.3.4.2-1: Definition of type TspResource Attribute name Data type P Cardinality Description Applicability cellIdList CellIdList M 1 list of CellIds, see clause 6.3.2 preference PreferenceType ...
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6.3.4.3 Slice SLA Policy Resources
The SliceSlaResources statement is defined in table 6.3.4.3-1. Table 6.3.4.3-1: Definition of type SliceSlaResources Attribute name Data type P Cardinality Description Applicability cellIdList CellIdList C 0..1 list of CellIds, see clause 6.3.2 taIList TaIList C 0..1 list of TaIs, see clause 6.3.2 NOTE: Presence condit...
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6.3.4.4 Load Balancing Policy Resources
The LbResources statement is defined in table 6.3.4.4-1. Table 6.3.4.4-1: Definition of type LbResources Attribute name Data type P Cardinality Description Applicability cellIdList CellIdList M 1 list of CellIds used to designate candidate cells to which cell load is to be transferred
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6.3.4.5 Energy Savings resources
The EsResources statement is defined in Table 6.3.4.5-2 as an array of the type EsResource defined in Table 6.3.4.5-1. ETSI ETSI TS 103 988 V9.0.0 (2025-05) 30 Table 6.3.4.5-1: Definition of type EsResource Attribute name Data type P Cardinality Description Applicability operationalCells CellIdList C 0..1 list of Cells...
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6.4 Policy representations objects
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6.4.1 Policy object
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6.4.1.1 General
A PolicyObject is based on IETF RFC 8259 [6] and it always contains one set of: • one ScopeIdentifier; and • one or more Statements. The PolicyObject can contain objective and/or resource statements as defined in table 6.4.1.1-1. Table 6.4.1.1-1: General definition of PolicyObject Attribute name Data type P Cardinality...
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6.4.1.2 Allowed combinations
A Statement can be applied together with a ScopeIdentifier containing different combinations of identifiers attributes. Not all combinations are relevant and different combinations are relevant for different policy types (see clause 7). ETSI ETSI TS 103 988 V9.0.0 (2025-05) 32
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6.4.2 Policy status object
A PolicyStatusObject is based on IETF RFC 8259 [6] and contains: • one enforceStatus attribute; and conditionally; • one enforceReason attribute. The PolicyStatusObject contains status related attributes as defined in table 6.4.2-1: Table 6.4.2-1: General definition of PolicyStatusObject Attribute name Data type P Card...
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6.4.3 Policy type object
A PolicyTypeObject is based on IETF RFC 8259 [6] and contains: • one JSON schema for PolicyObject; and optionally; • one JSON schema for PolicyStatusObject. The type PolicyTypeObject is defined in table 6.4.3-1. Table 6.4.3-1: General definition of PolicyTypeObject Attribute name Data type P Cardinality Description App...
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6.5 Binary data
Binary data is not applicable in the present document. ETSI ETSI TS 103 988 V9.0.0 (2025-05) 33
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7 A1-P data types (A1 policy types)
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7.1 Introduction
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7.1.1 Identification and compatibility of policy types
A policy type is identified by a PolicyTypeId as defined in A1AP [3]. The PolicyTypeId is a string that consists of two parts: a typename and a version. When updating a policy type, the version in the PolicyTypeId is updated according to SemVer [19] to reflect its compatibility with other policy types that has the same...
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7.1.2 Common definitions
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7.1.2.1 Scope and resource identifiers
An A1 policy type always contains a ScopeIdentifier with data types defined in clause 6.3.1. It may also contain attributes for a resource statement that includes identifiers defined in clauses 6.3.2 and 6.3.4. To enable multiple policy types to be created based on the same identifiers, the policy schemas can link to t...
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7.1.2.2 Policy status
This is a generic policy status schema, it may be adjusted and used together with a policy schema in a PolicyTypeObject and will then be identified by the same policy type identifier as the policy schema. { "$schema": "https://json-schema.org/draft/2020-12/schema", "description": "O-RAN standard policy status", "type":...
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7.1.3 Schema identification
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7.1.3.1 General
The policy schemas defined in clause 7.2 (e.g. policy schema for QoS target in clause 7.2.1.3.1) are base schemas that embed a subschema with common data types definitions. The base schemas can be used for creating or validating A1 policies after embedding the content of the linked common data types schema. A schema re...
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7.1.3.2 Schema URI structure
The base URI for A1 policy types and embedded schemas is: {uriRoot}/a1td where uriRoot follows an absolute URI syntax, but excludes the "query" component. The URI root contains the "scheme" component and may contain an "authority" component and may also contain a prefix subcomponent. ETSI ETSI TS 103 988 V9.0.0 (2025-0...
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7.2 Policy type definitions
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7.2.1 QoS target
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7.2.1.1 Policy type identifier
PolicyTypeId: ORAN_QoSTarget_4.0.1
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7.2.1.2 Rationale
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7.2.1.2.1 Use case
See "Use case 3: QoS based resource optimization" in Non-RT RIC & A1/R1 interface: Use Cases and Requirements [1].
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7.2.1.2.2 Statements, restrictions and extensions
A QoS statement can be applied together with ScopeIdentifier containing different combinations of identifiers. Not all combinations are relevant. Table 7.2.1.2.2-1 indicates the combinations that are allowed. Table 7.2.1.2.2-1: Allowed combinations of qosObjectives statement with ScopeIdentifier ScopeIdentifier Policy ...
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7.2.1.3 JSON schemas
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7.2.1.3.1 Policy schema
{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "https://schemas.o-ran.org/jsonschemas/a1td/oran_qostarget_4.0.1", "description": "O-RAN standard QoS Target policy", "type": "object", "properties": { "scope": { "anyOf": [ { ETSI ETSI TS 103 988 V9.0.0 (2025-05) 40 "type": "object", "properties": { "...