5G NR

In this chapter we shall have an introduction of 5G NR RRC Layer. RRC Layer is a control plane protocol stack. RRC layer is used for Access…

SDAP is a new layer in 5G NR. SDAP stands for Service Data Adaption Protocol. SDAP is a user plane protocol in 5G NR. The main functions of…

Reflective QoS is a new concept in 5G NR and is applicable for UpLink traffic of UE. This is applicable when SMF has not provided with QoS…

> WKT QFI is used to identify QoS flow. > QoS flow is the finest granularity of QoS differentiated services in a PDU session. >…

5G NR QoS Principles SMF requests PCF to give the SM policy for the PDU session. After that SMF will get the SM Policy Decision from PCF.…

5G QoS Parameters 1. 5QI This value is used as a reference to 5G QoS characteristics defined in clause TS 23 501 5.7.4 table. This value will…

5G NR QoS Profile A QoS flow may be either GBR or non-GBR depending on QoS profile. The QoS profile for a QoS flow is sent to RAN with below…

5G QoS is based on QoS Flows. Each QoS flow is identified by QoS Flow Identifier (QFI) with in a PDU session. There are 3 different types of…

There are 4 different types of cells in 5G NR: 1. PCell 2. PSCell 3. SCell 4. SpCell 1. PCell: -> Primary Cell -> It will come under…

Connection Management is used to establish and release the signalling connection between UE and AMF. CM mainly deals with establishing and…