4G

Reducing PIM – Passive Inter-Modulation for 4G / LTE

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PIM Passive Inter-Modulation

Reducing Passive Inter-Modulation Passive Inter-Modulation, also known as PIM is a problem that can affect FDD (Frequency Division Duplexing) LTE systems. Explaining the PIM Problem: Passive Inter-Modulation (PIM) products are caused by passive components such as duplexers, connectors, cables, and antennas. These components are nonlinear and create intermodulation products that can leak into the receive […]

4G

LTE Advanced Pro to 5G Roadmap

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LTE PRO evolution to 5G

LTE Advanced Pro and the Roadmap to 5G The 3GPP standards define the roadmap from LTE through LTE Advanced Pro to 5G, lead by the major players in the cellular industry – operators and vendors together. Evolution of LTE to 5G LTE is evolving from LTE, LTE-Advanced (LTE-A), LTE Advanced Pro (LTE-A Pro) and up […]

4G

Demonstrating 150Mbps 4G/LTE-A Connection to a Desktop LTE CPE

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4G LTE-A Test 152Mbps

Demonstrating 150Mbps 4G/LTE-A Connection to a Desktop LTE CPE: Throughput testing of LTE-A Closed Private 4G Network using 2×2 MIMO, 20MHz channel in Band 3. Shows 150Mbps DL & 42Mbps UL between PC web browser connected through  Desktop Cat4 LTE CPE and server. A video of the demonstration with some explanation and results is here: […]

4G

LTE Band 48 for CBRS

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CableFree CBRS spectrum USA

CBRS – Citizens Broadband Radio Service For the USA / North America Market The Citizens Broadband Radio Service (CBRS) is composed of a pair of LTE bands (42 – 3550-3660Mhz & 43 – 3660-3700Mhz) that have been allocated to low power cellular service in the United States. Spectrum allocation is tiered with two relevant tiers for […]

LTE

LTE Advanced and Carrier Aggregation (CA)

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LTEAdvancedPro LTE Carrier Aggregation CA

Carrier Aggregation in LTE-A (LTE Advanced) Carrier Aggregation (CA) is a key technology in 4G LTE Advanced (LTE-A) to enable higher capacities on mobile networks. carrier aggregation mainstream, with global proliferation, which benefits the entire mobile ecosystem: Operators, App developers, and OEMs –  by delivering higher data rates, improved capacity, and the ability to use spectrum […]

4G

LTE UE Category & Class Definitions

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3GPP 4G LTE For 3.5GHz CBRS

LTE UE (User Equipment) Category & Class Definitions LTE utilises the LTE UE Category or User Equipment categories or classes to define the performance specifications of LTE devices and enables LTE base stations to be able to communicate effectively with them knowing their performance levels.  Some LTE UE Categories such as LTE Cat 3, LTE Cat 4 and […]

4G

CBRS: Citizens Broadband Radio Service and 4G/LTE

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4G LTE-U Offload 5GHz WiFi

The Citizens Broadband Radio Service (CBRS): shared spectrum in the 3.5 GHz “innovation band” CBRS is an acronym for Citizens Broadband Radio Service, and the upshot for enterprise IT pros is that it could result in improved LTE services from service providers as well as enable enterprises to build their own private LTE networks. How […]

4G

How Fast is 4G LTE ?

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4G 5G LTE ongoing releases

Question: How Fast is 4G LTE ? Answer originally posted on Quora.com: The answer to this involves a few factors, including “Which LTE” as several versions of LTE are already in use, from the start of LTE (Release 8 ) to now (Release 13), which include capacity and performance increases: What Version of LTE being […]

4G

Voice over LTE, VoLTE Explained

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CableFree LTE Voice over LTE VoLTE

Explaining Voice over LTE (VoLTE) Voice over LTE, VoLTE technology was devised as a result of operators seeking a standardised system for transferring traffic for voice over LTE. Originally LTE was seen as a completely IP cellular system just for carrying data, and operators would be able to carry voice either by reverting to 2G […]