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Category: 5G MAC

5G NR SR – Scheduling Request

Introduction SR also known as Scheduling Request is a very famous word for telecom Dev, Test, and Optimization Engineers. It is a Layer 1 (Physical Layer) signal or message sent […]

August 6, 2022August 6, 2022 Author 5G, 5G MAC, 5G MAC Layer, 5G Physical Layer, Call Flow

5G MSG3 – PUSCH Scheduled Transmission by RAR UL grant

Introduction When we want to connect a UE to 5G network, it has to synchronize in downlink as well as in uplink. Downlink synchronization is obtained after successfully decoding SSB, […]

June 24, 2022June 24, 2022 Author 5G, 5G MAC, 5G MAC Layer, 5G NR, Interviews

5G NR Layer 2 – Packet Data Convergence Protocol (PDCP) Overview

Introduction 5G NR PDCP is a Layer 2 protocol and overall functionality is almost same as it was in 4G LTE PDCP. PDCP layer resides between RRC on the upper […]

January 5, 2022January 5, 2022 Author 3GPP Specification, 5G, 5G MAC, 5G NR, 5G RLC Layer, NR

5G MAC BSR – Buffer Status Reporting

The Buffer Status reporting (BSR) is a MAC layer procedure which is used by the UE to provide information about the amount of data available for transmission in the UL […]

August 15, 2021August 16, 2021 Author 3GPP Specification, 5G, 5G Call Flow, 5G MAC, 5G MAC Layer, Tech Fundas

5GNR 2-Step RACH

In Earlier versions of NR  3GPP Releases i.e. Rel.15, There was only one type of RACH procedure was defined, which is similar to LTE RACH procedure also known as 4-Step […]

April 8, 2021July 21, 2021 Author 5G, 5G Call Flow, 5G MAC, 5G MAC Layer, Tech Fundas

5G NR RACH Procedure Overview – CBRA & CFRA

When we want to connect a UE to 5G network, it has to synchronize in downlink as well as in uplink. Downlink synchronization is obtained after successfully decoding SSB, In […]

August 5, 2020June 19, 2022 Author 5G, 5G MAC, 5G Network Planning, 5G NR, 5G NR Standalone, 5G Physical Layer, Tech Fundas
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