The 3G4G Blog

In an earlier post we looked at the 3GPP Release 18 Description and Summary of Work Items . One of the key areas was Further NR mobility enh...

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...

3GPP 37.340 says that it is up the secondary node to establish "SRB3", but what exactly does this mean and how is it done? Sim...

This is a guest post by  Ben Toner , Founder and Director, Numerous Networks Are multiple networks better than one? How many artic...

Looking back at my old post about UMTS & LTE (re)selection/handovers, I wonder how many different kinds of handovers and (re)selection...

Last week we had the Automotive and Transport SIG event in Cambridge Wireless. There is already some good writeup on that event here and h...

Recently in a conference I mentioned that the 3GPP standards are working on standards that will allow automatic and seamless handovers be...

Interesting presentation by Thierry DUPONT, TDF in the LTE World Summit 2012 . LTE World Summit 2012 - Day 1 T1 Thierry Dupont...

From the NTT Docomo Technical journal : The LTE handover is broadly divided into a backward handover (PS handover) and forward handover....

In countries where FDD and TDD are both in use, it would be interesting to see Dual-mode LTE terminals that would support both TDD and FDD ...

Another one from Qualcomm's 4G World presentation. You can see the number of scenarios that would have to be taken into account for; th...

Continuing on the Self-organising Network (SON) feature of Mobility Robust Optimisation , Handover failures. Click on image to enla...

The following is from 4G Americas Whitepaper on SON: Mobility Robustness Optimization (MRO) encompasses the automated optimization o...

One of the things on my mind for long time was to find a bit more about RSRP and RSRQ. The following is from Agilent Whitepaper : The UE and...

It may be worthwhile brushing up the LTE/SAE Interfaces and Architecture before proceeding. 1) Overview of Handover Operation Wi...

The Fact boxes in the Appendix give a very good quick overview of how different technologies work with VoLTE. Voice over LTE – a step towar...

The inbound handover from a Macro eNB to an HeNB (a.k.a. Femtocell) is not supported in Release 8. Before making a handover decision to a He...

From a 3GPP presentation by Hannu Hietalahti 1. SR-VCC use case 1a. IMS call initiated in LTE can continue in CS domain after moving outside...

Interoperability in LTE View more documents from All About 4G

An excerpt from presentation by Dr. Doug Pulley, picoChip. The presentation is available to download from here .