API-Docs

This is the API-docs for H release o-du/l2.

Introduction

This document tabulates the APIs Aligned(Implemented)/Not Implemented/Additional APIs between various modules of ODU-High and their functionality. These are in line with ORAN-WG8.AAD-v7.00.00, hereafter referred to as AAD Spec.

Note: DU APP module consist functionality related to F1 Handler and O1 Handler

API Table

Interface

API

Status

Section

Remark

SMO-OAM & DU APP

Cell Configuration

Aligned

11.2.1.1

Slice Configuration

Aligned

11.2.1.2

Bring Cell Up

Additional API

Notify DU to bring specific cell up

Bring Cell Down

Additional API

Notify DU to bring specific cell down

Slice PM

Additional API

DU APP sends PM for all Slices every 60s

Raise Cell Alarm

Additional API

DU APP alarms during cell state change

Set the cell operational state

Additional API

DU APP inform cell state[ACTIVE/INACTIVE]

RLC & MAC

DL Transfer

Aligned

11.2.3.1

UL Transfer

Aligned

11.2.3.2

Schedule Result Reporting(DL)

Aligned

11.2.3.3

Buffer Status Report(UL)

Aligned

11.2.3.4

MAC to

SCH

Air Interface Time

Aligned

11.2.4.1.1

Cell Configuration Request

Aligned

11.2.4.2.1

Cell Delete Request

Aligned

11.2.4.2.2

Slice Configuration Request

Aligned

11.2.4.2.3

Slice Reconfiguration Request

Aligned

11.2.4.2.4

Add UE Configuration Request

Aligned

11.2.4.2.5

UE Reconfiguration Request

Aligned

11.2.4.2.6

Delete UE Request

Aligned

11.2.4.2.7

DL HARQ Indication

Aligned

11.2.4.2.8

UL Harq Indication(CRC)

Aligned

11.2.4.2.9

UL Channel Quality Information

Not Implemented

11.2.4.2.10

DL Channel Quality Information

Not Impelemented

11.2.4.2.11

RACH Indication Contents

Aligned

11.2.4.2.12

Paging Indication Contents

Aligned

11.2.4.2.13

RACH Resource Request

Aligned

11.2.4.2.14

RACH Resource Release

Aligned

11.2.4.2.15

DL RLC Buffer Status Info

Aligned

11.2.4.2.16

Scheduling Request Indication

Aligned

11.2.4.2.17

UL Buffer Status Report Ind

Aligned

11.2.4.2.18

Power Headroom Indication

Aligned

11.2.4.2.19

SCH to

MAC

Cell Configuration Response

Aligned

11.2.4.3.1

Cell Delete Response

Aligned

11.2.4.3.2

Slice Configuration Response

Aligned

11.2.4.3.3

Slice ReConfiguration Response

Aligned

11.2.4.3.4

UE Configuration Response

Aligned

11.2.4.3.5

UE ReConfiguration Response

Aligned

11.2.4.3.6

UE Delete Response

Aligned

11.2.4.3.7

DL Scheduling Information

Aligned

11.2.4.3.8

UL Scheduling Information

Aligned

11.2.4.3.9

RAR Information

Not Required

11.2.4.3.10

Included in DL Scheduling Info

Downlink Control Channel Info

Not Required

11.2.4.3.11

Included in DL Scheduling Info

Downlink Broadcast Allocation

Not Required

11.2.4.3.12

Included in DL Scheduling Info

Downlink Paging Allocation

Aligned

11.2.4.3.13

HARQ Process Release

Additional API

SCH indicates MAC to release a HARQ process in case a positive acknowledement is received or achieved maximum retrans.

RACH Resource Response

Additional API

Response to RACH Resource Request for dedicated resource for CF-RA

DU APP

& MAC

Cell Start

Aligned

1.1.1.1

Cell Stop

Aligned

1.1.1.2

Cell Configuration Request

Additional API

Configures cell information at MAC.

Cell Configuration Response

Additional API

Response to cell Cfg Req from DUAPP

Cell Delete Request

Additional API

Deletes cell information at MAC.

Cell Delete Response

Additional API

Response to Cell Del request from DU APP

Slice Configuration Request

Additional API

Configures Slice at MAC

Slice ReConfiguration Request

Additional API

ReConfigures Slice at MAC

Slice Configuration Response

Additional API

Response to Slice Cfg req from DU APP

Slice ReConfiguration Response

Additional API

Response to Slice ReCfg req from DU APP

UE Create Request

Aligned

1.1.1.3

UE Create Response

Aligned

1.1.1.4

UE Reconfiguration Request

Aligned

1.1.1.5

UE Reconfiguration Response

Aligned

1.1.1.6

UE Delete Request

Aligned

1.1.1.7

UE Delete Response

Aligned

1.1.1.8

RACH Resource Request

Aligned

1.1.1.9

RACH Resource Response

Aligned

1.1.1.10

RACH Resource Release

Aligned

1.1.1.11

UE Reset Request

Not Implemented

1.1.1.12

UE Reset Response

Not Implemented

1.1.1.13

UE Sync Status Indication

Not Implemented

1.1.1.14

UL CCCH Indication

Aligned

1.1.1.15

DL CCCH Indication

Aligned

1.1.1.16

DL PCCH Indication

Aligned

1.1.1.17

DL Broadcast Request

Not Implemented

1.1.1.18

Slot Indication

Additional API

Indication about the ongoing SFN and

Slot information to DU APP

DU APP

& RLC

UE Create

Aligned

11.2.5.1

UE Create Response

Aligned

11.2.5.2

UE Reconfiguration

Aligned

11.2.5.3

UE Reconfiguration Response

Aligned

11.2.5.4

UE Delete

Aligned

11.2.5.5

UE Delete Response

Aligned

11.2.5.6

DL-RRC Message Transfer

Aligned

11.2.5.7

UL-RRC Message Transfer

Aligned

11.2.5.8

UL-RRC Message Delivery Report

Aligned

11.2.5.9

RLC Max Retransmission Reached

Not Implemented

11.2.5.10

UL-RLC Re-establishment Request

Not Implemented

11.2.5.11

UL-RLC Re-establshment Response

Not Implemented

11.2.5.12

DL RRC Message Response

Additional API

Informs DU APP if a DL RRC Message was successfuly procesed at RLC & sent to MAC

DL User Data

Additional API

DL user data exchanged from DUAPP to RLC

UL User Data

Additional API

UL user data exchanged from RLC to DUAPP

Slice Performance Metrics

Additional API

Performance Metrics informed to DUAPP every 60sec for every slice configured