Category: Wireless Testing
5G RAN and 5GC Network Slice Signaling
Network Slicing is considered as one of the key feature by 3GPP in 5G. A network slice can be looked as a logical end-to-end network that can be dynamically created. […]
5G NR Cell Global Identity (NCGI) Planning and Calculations
In 5G, NR Cell Global Identifier (NCGI) is used to identify NR cells globally and similar to ECGI (EUTRA Cell Global Identifier ) in 4G LTE. The NCGI is constructed […]
5G Authentication and Key Management 5G-AKA
Secure communication in any cellular network can be achieved with help of AKA procedure. AKA is Authentication and Key Management procedure which involve mutual authentication between User Device and the […]
Open RAN Management Plane (M-plane) for Open Radio Unit
In ORAN, the O-RU management functions to set parameters are done over the M-Plane. The management functions includes O-RU software management, fault management etc. Regarding this, O-RAN fronthaul specifications prescribe […]
5G NR-PDCCH Channel Overview and Processing
The physical downlink control channel (PDCCH) in NR carries Downlink Control Information (DCI). In this post we will understand how PDCCH operates by describing its physical layer structure, and the […]
5G NR HO Setup: Handover Testing in Cabled Setup
Handover, or handoff in 5G NR or 4G LTE happens when a Data/Voice call is transferred from one cell to the an adjacent cell as the Mobile user moves through […]
tcpdump for Linux System: A Tool for IP Packet Analysis
In my experience as a protocols test engineer, I have often found issues related to network connectivity, throughput loss, protocol procedure failures, having a challenge to troubleshoot and needs to […]
Iperf : A Tool for Network Testing
Iperf or IP performance is a utility for testing network performance and its tuning. It is a cross-platform (windows, linux) tool which can provide standardized measurement results for any network […]
O-RAN Fronthual C-U/Sync/Mgmt Planes and Protocol Stack
The interface between DU and RU is known as Fronthaul. When this interface allows to connect any vendor DU to any vendor RU, know as Open Fronthaul. To enable this multi […]
4G LTE Important QXDM Log Packets
QXDM is most widely used tool in wireless 4G,5G technology to capture Qualcomm based Mobile signalling and data details logs for debugging purpose. Whether it is Field testing or Lab […]