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# System prepended metadata

title: E2 RIC Services & E2 RAN Parameters

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# <center>E2 RIC Services & E2 RAN Parameters</center>

# RIC services

Near-RT RIC may use the following RIC services provided by an E2 node:
-	REPORT: Near-RT RIC uses a RIC Subscription and/or RIC Subscription Modification procedures to request that E2 Node sends a REPORT message to Near-RT RIC and the associated procedure continues in the E2 Node after each occurrence of a defined RIC Subscription procedure Event Trigger.
-	INSERT: Near-RT RIC uses a RIC Subscription and/or RIC Subscription Modification procedures to request that E2 Node sends an INSERT message to Near-RT RIC and suspends the associated procedure in the E2 Node after each occurrence of a defined RIC Subscription procedure Event Trigger.
-	CONTROL: Near-RT RIC sends a CONTROL message to E2 Node to initiate a new associated procedure or resume a previously suspended associated procedure in the E2 Node.
-	POLICY: Near-RT RIC uses a RIC Subscription and/or RIC Subscription Modification procedures to request that E2 Node executes a specific POLICY during functioning of the E2 Node after each occurrence of a defined RIC Subscription procedure Event Trigger. 
-	QUERY: Near-RT RIC sends a QUERY message to the E2 node to retrieve RAN-related and/or UE-related information from the E2 Node. 

## 1 - REPORT Service

![](https://hackmd.io/_uploads/rkSv2eAla.png)

## 2 - INSERT service

![](https://hackmd.io/_uploads/rJ35nl0g6.png)

## 3 - CONTROL service

![](https://hackmd.io/_uploads/ry3x6lRg6.png)

## 4 - POLICY service

![](https://hackmd.io/_uploads/rySfalAea.png)

## 5 - QUERY service

![](https://hackmd.io/_uploads/r1mr6gAxT.png)

# RAN Function

## RIC CONTROL Services

| **RIC Style Type** | **Style Name**                              | **Style Description**                                                                                                                                                                                                                                                                      |
| ------------------ | ------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| 1                  | Radio Bearer control                        | Used to modify the configuration the Radio Bearer Control (RBC) related parameters and/or behaviours at the E2 Node for a specific UE or a UE group. Belongs to Fundamental level CONTROL Services.                                                                                       |
| 2                  | Radio resource allocation control           | Used to modify the configuration the Radio Resource Allocation control related parameters and/or behaviours at the E2 Node for a specific E2 Node, cell, slice, UE and/or QoS Belongs to Fundamental level CONTROL Services.                                                              |
| 3                  | Connected mode mobility control             | Used to initiate a connected mode mobility procedure (Handover or Conditional Handover), optionally with Dual Active Protocol Stack (DAPS), for a specific UE towards either a target cell (for HO) or a list of candidate cells (for CHO) Belongs to Fundamental level CONTROL Services. |
| 4                  | Radio access control                        | Used to modify Radio access related functions used to control UE access to cells Belongs to Fundamental level CONTROL Services.                                                                                                                                                           |
| 5                  | Dual connectivity (DC) control              | Used to initiate Dual connectivity (DC) mechanisms Belongs to Fundamental level CONTROL Services.                                                                                                                                                                                         |
| 6                  | Carrier Aggregation (CA) control            | Used to initiate Carrier Aggregation (CA) mechanisms Belongs to Fundamental level CONTROL Services.                                                                                                                                                                                       |
| 7                  | Idle mode mobility control                  | Used to modify Idle mode mobility related functions used to control UE reselection of cells Belongs to Fundamental level CONTROL Services.                                                                                                                                                |
| 8                  | UE information and assignment               | Used for _Explicit UE list_ assignment, UE information report generation and to complete UE identification.  These services are used to support other RIC services. Belongs to Fundamental level CONTROL Services.                                                                        |
| 9                  | Measurement Reporting Configuration control | Used to control the measurement report configuration                                                                                                                                                                                                                                       |
| 10                 | Beamforming Configuration control           | Used to control beamforming configuration for a specific UE.                                                                                                                                                                                                                               |
| 255                | Multiple Actions Control                    | Used for multiple actions of the selected fundamental level CONTROL Service style(s). Belongs to lntegrated level CONTROL Services.                                                                                                                                                       |

# RAN Parameters Assignments

## RAN Parameters for Control Actions

### 1. Radio Bearer Control

#### 1	DRB QoS Configuration
| **RAN Parameter ID** | **RAN Parameter**                             | **RAN Parameter Value Type** | **Key Flag** | **RAN Parameter Definition**                                                   | **Semantics Description**                                                        |
| -------------------- | --------------------------------------------- | ---------------------------- | ------------ | ------------------------------------------------------------------------------ | -------------------------------------------------------------------------------- |
| 1                    | DRB ID                                        | ELEMENT                      | TRUE         | _DRB ID_ IE in TS 37.483 [21] Section 9.3.1.16                                 |                                                                                  |
| 2                    | 5QI                                           | ELEMENT                      | FALSE        | _5QI_ IE in TS 37.483 [21] Section 9.3.1.27 or TS 37.483 [21] Section 9.3.1.28 |                                                                                  |
| 3                    | Packet Delay Budget                           |  ELEMENT                     | FALSE        | _Packet Delay Budget_ IE in TS 37.483 [21] Section 9.3.1.47                    |                                                                                  |
| 4                    | Packet Error Rate                             | STRUCTURE                    |              |                                                                                | _Packet Error Rate_ IE in TS 37.483 [21] Section 9.3.1.48                        |
| 5                    | \>Scalar factor                               | ELEMENT                      | FALSE        | _Scalar_ IE in TS 37.483 [21] Section 9.3.1.48                                 |                                                                                  |
| 6                    | \>Exponent factor                             | ELEMENT                      | FALSE        | _Exponent_ IE in TS 37.483 [21] Section 9.3.1.48                               |                                                                                  |
| 7                    | NG-RAN DRB Allocation and Retention Priority  | STRUCTURE                    |              |                                                                                | _NG-RAN Allocation and Retention Priority_ IE in TS 37.483 [21] Section 9.3.1.29 |
| 8                    | \>Priority Level                              | ELEMENT                      | FALSE        | _Priority Level_ IE in TS 37.483 [21] Section 9.3.1.29                         |                                                                                  |
| 9                    | \>Pre-emption Capability                      | ELEMENT                      | FALSE        | _Pre-emption Capability_ IE in TS 37.483 [21] Section 9.3.1.29                 |                                                                                  |
| 10                   | \>Pre-emption Vulnerability                   | ELEMENT                      | FALSE        | _Pre-emption Vulnerability_ IE in TS 37.483 [21] Section 9.3.1.29              |                                                                                  |
| 11                   | Priority Level of the mapped QoS flows        | ELEMENT                      | FALSE        | _Priority Level_ IE in TS 37.483 [21] Section 9.3.1.51                         |                                                                                  |
| 12                   | QoS parameters for GBR flows in NG-RAN Bearer | STRUCTURE                    |              |                                                                                | _GBR QoS Flow Information_ IE in TS 37.483 [21] Section 9.3.1.30                 |
| 13                   | \>Maximum Flow Bit Rate Downlink              | ELEMENT                      | FALSE        | _Bit Rate_ IE in TS 37.483 [21] Section 9.3.1.30                               |                                                                                  |
| 14                   | \>Guaranteed Flow Bit Rate Downlink           | ELEMENT                      | FALSE        | _Bit Rate_ IE in TS 37.483 [21] Section 9.3.1.30                               |                                                                                  |
| 15                   | \>Maximum Packet Loss Rate Downlink           | ELEMENT                      | FALSE        | _Packet Loss Rate_ IE in TS 37.483 [21] Section 9.3.1.30                       |                                                                                  |
| 16                   | \>Maximum Flow Bit Rate Uplink                | ELEMENT                      | FALSE        | _Bit Rate_ IE in TS 37.483 [21] Section 9.3.1.30                               |                                                                                  |
| 17                   | \>Guaranteed Flow Bit Rate Uplink             | ELEMENT                      | FALSE        | _Bit Rate_ IE in TS 37.483 [21] Section 9.3.1.30                               |                                                                                  |
| 18                   | \>Maximum Packet Loss Rate Uplink             | ELEMENT                      | FALSE        | _Packet Loss Rate_ IE in TS 37.483 [21] Section 9.3.1.30                       |                                                                                  |
| 19                   | QoS Monitoring Enable Request                 | ELEMENT                      | FALSE        | _QoS Monitoring Request_ IE in TS 37.483 [21] Section 9.3.1.26                 |                                                                                  |
| 20                   | QoS Monitoring Reporting Frequency            | ELEMENT                      | FALSE        | _QoS Monitoring Reporting Frequency_ IE in TS 37.483 [21] Section 9.3.1.26     |                                                                                  |
| 21                   | QoS Monitoring Disabled                       | ELEMENT                      | FALSE        | _QoS Monitoring Disabled_ IE in TS 37.483 [21] Section 9.3.1.26                |                                                                                  |
| 22                   | Reflective QoS Mapping                        | ELEMENT                      | FALSE        | _RDI_ IE in TS 37.483 [21] Section 9.3.1.26                                    |                                                                                  |

#### 2	QoS flow mapping configuration
| RAN Parameter ID | RAN Parameter                           | RAN Parameter Value Type | Key Flag | RAN Parameter Definition                                            | Semantics Description                                            |
| ---------------- | --------------------------------------- | ------------------------ | -------- | ------------------------------------------------------------------- | ---------------------------------------------------------------- |
| 1                | DRB ID                                  | ELEMENT                  | TRUE     | _DRB ID_ IE in TS 37.483 [21] Section 9.3.1.16                      |                                                                  |
| 2                | List of QoS Flows to be modified in DRB | LIST                     |          |                                                                     | _Flow Mapping Information_ IE in TS 37.483 [21] Section 9.3.1.26 |
| 3                | \>QoS Flow Item                         | STRUCTURE                |          |                                                                     | _QoS Flow Item_ IE in TS 37.483 [21] Section 9.3.1.12            |
| 4                | \>>QoS Flow Identifier                  | ELEMENT                  | TRUE     | _QoS Flow Identifier_ IE in TS 37.483 [21] Section 9.3.1.24         |                                                                  |
| 5                | \>>QoS Flow Mapping Indication          | ELEMENT                  | FALSE    | _QoS Flow Mapping Indication_ IE in TS 37.483 [21] Section 9.3.1.60 |                                                                  |

#### 3	Logical channel configuration

#### 4	Radio Bearer Admission Control

#### 5	DRB Termination Control

#### 6	DRB Split Ratio Control

#### 7	PDCP Duplication Control

### 2. Radio Resource Allocation Control

#### 1	DRX Parameter Configuration

#### 2	Scheduling Request Parameter Configuration

#### 3	Semi-Persistent Scheduling Parameter Configuration

#### 4	Configured Grant Configuration

#### 5	CQI table configuration

#### 6	Slice-level PRB quota

### 3. Connected Mode Mobility Control

#### 1	Handover Control

#### 2	Conditional Handover Control

#### 3	DAPS Handover Control

### 4. Radio Access Control

#### 1	UE admission control

#### 2	RACH backoff control

#### 3	Access barring control

#### 4	RRC Connection Release Control

#### 5	RRC Connection Reject Control

### 5. Dual Connectivity Control

#### 1	DC Secondary Node Addition Control

#### 2	DC Secondary Node Modification Control

#### 3	PSCell Change control for Secondary Cell Group

#### 4	DC Secondary Node Change Control

### 6. Carrier Aggregation Control

#### 1	Secondary cell Addition control

#### 2	Secondary cell Modification control

### 7. Idle Mode Mobility Control

#### 1	Cell reselection priority control

### 8. UE identification and assignment

#### 1	UE to Explicit UE list assignment command

### 9. Measurement Reporting Configuration Control

#### 1		Add MR Configuration

#### 2		Modify MR Configuration

#### 3		Delete MR Configuration

#### 4		Control Outcome parameters

### 10. Beamforming Configuration Control

#### 1	Non-GoB BF Mode Configuration
| **RAN Parameter ID** | **RAN Parameter**              | **RAN Parameter Value Type** | **Key Flag** | **RAN Parameter Definition** | **Semantics Description**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
| -------------------- | ------------------------------ | ---------------------------- | ------------ | ---------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 1                    | MIMO Mode Index                | ELEMENT                      | TRUE         | INTEGER (1..2, …)            | Value = 1 means the SU (single-user) MIMO mode. Value 2 means the MU (multi-user) MIMO mode.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| 2                    | Non-GoB Beamforming Mode Index | ELEMENT                      | FALSE        | INTEGER (0.. 65535, ...)     | The index is used for Non- Grid of Beams (Non-GoB) beamforming optimization for 5G mMIMO deployments [32]. Each BF mode implies a vendor-specific proprietary Non-GoB BF algorithm that are not standardized [33], for which each E2 Node, who supports the Non-GoB beamforming optimization feature, provides the number of different Non-GoB BF mode(s) supported by its scheduler indexed from 1 to n. The AI/ML model for Non-GoB beamforming optimization is trained by data and measurements related to each BF mode and/or MIMO mode, for which the trained AI/ML model, based on collected data, configures the E2 Node with the best inferred Non-GoB BF mode index to be used for each UE, where such configuration could be done separately for the case of Single User- and/or Multi-user MIMO [32]. The Value = 0 means release of Non-GoB BF mode for the UE of subject. |