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Category: LTE

X2 Handover Call Flow in 4G LTE

Introduction In handover process a UE sessions are transferred from the current serving cell to another one while it is moving towards a neighbor cell and UE ends up with […]

March 10, 2022March 10, 2022 Author 5G Call Flow, Call Flow, LTE, RRC Signalling

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 […]

December 13, 2020December 13, 2020 Author 5G, 5G Network Architectures, 5G NR, 5G NR Standalone, Interviews, LTE, New Radio, RRC Signalling, Wireless Testing

O-RAN Fronthaul Transport Synchronization Configurations

O-RAN maintains network timing distribution as the preferred approach within the fronthaul network. Time and frequency synchronization needs to be distributed to O-DU and O-RU for the effective O-RAN network […]

October 6, 2020March 22, 2021 Author 5G, 5G Network Architectures, 5G Network Planning, LTE, Open RAN

5G NR RSRP Measurement Report Mapping

In 5G NR, RSRP measurement is performed and reported at Layer 1 (Physical Layer) and Layer 3 (RRC Layer). For example,  5G capable device can provide SS-RSRP measurements at Layer […]

June 3, 2020June 3, 2020 Author 5G, 5G Network Architectures, 5G Network Planning, 5G Physical Layer, Call Flow, LTE, New Radio, Radio Resource Management, RF Basics, RRC, RRC Signalling, Tech Fundas

5G NR Measurement Events

In any telecom technology (2G, 3G, 4G or 5G), mobility (handover) decision whether mobile device will be handover or not is taken by by base station based on measurement reports […]

February 26, 2020July 21, 2020 Author 5G, 5G Network Planning, Future Network Optimization, Interviews, LTE, New Radio, RRC Signalling, Signaling, Tech Fundas

5G mmWave 28 GHz Band Link Budget – n257

The combination of 5G NR technology and millimeter wave bands pioneer a new level of mobile performance with ultra-high speeds and low latencies. Momentum behind 28 GHz is growing, with […]

February 14, 2020July 21, 2020 Author 5G, 5G Network Planning, Interviews, LTE, New Radio, RF Basics, Tech Fundas

5G NR CORESET – Control Resource Set

In 5G NR, CORESET is known as Control Resource Set. It is a set of physical resources within a specific area in Downlink Resource Grid and used to carry PDCCH […]

February 9, 2020January 11, 2023 Author 5G, 5G Physical Layer, LTE, NR, RRC, RRC Signalling, Tech Fundas

5G NR Antenna Port – Logical and Physical Antenna Mapping

Downlink multi-antenna transmission is a key technology of 5G NR. Signals transmitted from different antennas ports will experience different “radio channels” even if the set of antennas are located at […]

January 12, 2020April 5, 2021 Author 5G, 5G Physical Layer, Interviews, LTE, New Radio, NR, RF Basics, Tech Fundas

5G NR Cyclic Prefix (CP) Design

Cyclic prefix (CP) refers to the prefixing of a symbol, with a repetition of the end In OFDM wireless systems. The receiver is typically configured to discard the cyclic prefix […]

December 14, 2019July 21, 2020 Author 5G, 5G Physical Layer, Interviews, LTE, New Radio, NR, Tech Fundas

Motivation Behind Having Multiple Numerology in 5G NR

Talking about numerology, as we know LTE has single subcarrier spacing equal to 15khz, but here in NR, we have multiple numerologies and those are represented by Greek letter µ. […]

December 9, 2019July 10, 2020 Author 5G, 5G Physical Layer, Future Network Optimization, Interviews, LTE, NR, Tech Fundas

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