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Tuesday, 30 June 2020

A Look into 5G Virtual/Open RAN - Part 6: Inter-gNB CU Handover involving Xn

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In previous blog posts I have discussed intra-gNB-DU handover and inter-gNB-DU handover scenarios.Now it is time to look at inter-gNB-CU...
1 comment:
Tuesday, 23 June 2020

Comparison Layer 2 Measurements LTE vs. 5G NR

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Yesterday (2020-06-22) 3GPP uploaded the version 1.0 of TS 38.314 "Layer 2 Measurements" for 5G New Radio Rel. 16. I was wonde...
Monday, 22 June 2020

Carrier Aggregation (CA) and Dual Connectivity (DC)

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This topic keeps coming up every few months with either someone asking me for clarifications or someone asking us to make a video. While...
Friday, 12 June 2020

A Look into 5G Virtual/Open RAN - Part 5: Inter-gNB DU Handover

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My last blog post discussed the intra-gNB-DU handover . Now it is time to look at inter-gNB-DU handover. This means: the target cell is loc...
3 comments:
Tuesday, 9 June 2020

5G Roaming with SEPP (Security Edge Protection Proxy)

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SEPP (Security Edge Protection Proxy) is part of the roaming security architecture as shown in the figure above. Ericsson's article ,...
Tuesday, 2 June 2020

Embedded SIM (eSIM) and Integrated SIM (iSIM)

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It's been a while since I wrote detailed posts explaining UICC and SIM cards . Since then the SIM cards have evolved from Mini SIM to M...
1 comment:
Friday, 29 May 2020

Visualisation of Intra-gNB Handover in an End-to-End Monitoring Tool

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In my last blog post I described the message flow of an intra-gNB-DU handover. Today I want show how such a handover can be visualized u...
Tuesday, 26 May 2020

The Journey from Communications Service Provider (CSP) to Digital Service Provider (DSP)

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Reliance Jio has recently been called as India's first digital service provider (DSP), but what exactly is a DSP and how does an exist...
Tuesday, 19 May 2020

5G Dynamic Spectrum Sharing (DSS)

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5G Dynamic Spectrum Sharing is a hot topic. I have already been asked about multiple people for links on good resources / whitepapers. So h...
Thursday, 14 May 2020

A Look into 5G Virtual/Open RAN - Part 4: Intra-gNB DU Handover

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In the previous posts of this series I described O-RAN interfaces and protocols , connection establishment and connection release procedur...
11 comments: