---
# System prepended metadata

title: IVC 5G O-RAN Summary
tags: [UNILA]

---

# IVC 5G O-RAN Summary

###### tags: `UNILA`

## Summary 29th of July 2021

Name 		: Dimas Danu Saputra
Student ID 	: 1915031076
Date 		: 29th of July 2021

# Summary “RAN Intelligent Controller (RIC), Network Management and Security”

Fundamental QoS
Two Perspectives of QoS
1.	Networks => QoS
The service quality or service level that the network offers applications or user in terms of QoS parameters. They are :
a.	Latency or delay
b.	Loss or error rate
c.	Throughput
d.	Delay Jitter
e.	Fairness
2.	Applications/Users : Quality of Experience (QoE)

![](https://i.imgur.com/r0izkOd.png)

 
RAN Intelligent Controller (RIC)
-	Near-Realtime RIC
• Radio Resource Management (RRM)
• Quality of Service (QoS) Management
• Connectivity Management
• Seamless Handover Control
QoS Mechanism
1.	Traffic handling (In-traffic)
2.	Bandwidth management (Out-of-traffic)
3.	Mechanisms
Admission Control
Admission control
– a mechanism that decides whether to allow a new session/flow to join the network.
– ensure that existing sessions' QoS will not be degraded by accepting new session
Admission control and resource reservation signaling mechanisms are implemented in the
same device.

Packet scheduling
– selects a packet from transmission queues for transmission
– decides which packet from which queue and station are scheduled 
– controls bandwidth allocation to stations, classes, and applications
– deals with how to retrieve packets from queues

Scheduling
First In First Out (FIFO)
– Strict Priority
– Weight Fair Queue (WFQ)
Two Kinds RAN Intelligent Controller (RIC)
– Non-Real Time RIC
– Near Real Time RIC
• Goal :
– To configure or control RAN

- Near-RT RIC Functions Description
Near-RT RIC hosts the following functions:
– Database to read/write of RAN/UE information;
– xApp subscription management to merge subscriptions from xApps
– Conflict mitigation to resolve conflicting requests from xApps;
– Messaging infrastructure for internal functions interaction
– Security scheme for the xApps
– Management services
– Interface Termination: E2/A1/O1
– Functions hosted by xApps,
 
![](https://i.imgur.com/31LajSD.png)




- Network Management and Security
 
 ![](https://i.imgur.com/BrSy566.png)

 
- Security considerations of 5G
o	Crimeware (Attack Toolkits) Deployed By Internal Actors
o	Eavesdropping
o	Security breach from one part of the network to another
o	DDoS
o	Data Interception And Rerouting
o	Man In The Middle Attack
o	A False Base Station
o	Roaming Fraud
o	Microprocessor level vulnerabilities
o	AI-driven attacks
o	IMSI Tracking
o	2G/3G Downgrade
