5G – Part 3 – Dual Connectivity (EN-DC)

In the first part of this series, I emphasized that in 3GPP Release 15, a major focus is to get a first incarnation of 5G into the field that complements 4G LTE. Instead of today’s approach where a device is either connected to GSM, or to UMTS or to LTE, i.e. only to one technology … Continue reading 5G – Part 3 – Dual Connectivity (EN-DC)

5G – Part 4 – LTE-NR Carrier Aggregation – DC_3A-7A-20A-n78A

Part 3 of my series on 5G has given an overview of 5G-New Radio Option 3 Non-Standalone, which I think is how 5G is likely to be deployed in practice first: In loose combination with LTE. Option 3 basically puts a 5G gNB next to a 4G eNB base station. The LTE eNB controls connectivity … Continue reading 5G – Part 4 – LTE-NR Carrier Aggregation – DC_3A-7A-20A-n78A

5G – Part 1 – A First Look Into The TS’es

Two and a half years ago in March 2015 I had my first post on 5G on this site about 3GPP kicking off its 5G activities. A lot has happened since then and I had the occasional post but now things are getting really exciting for me: Various 3GPP groups have started churning out the … Continue reading 5G – Part 1 – A First Look Into The TS’es