InterDigital Inc (IDCC)

[LTE]

5G - Everything stems from the 4G "trunk."

This is from Qualcomm's blog - I think that it shows that IDCC's 4G litigation still
means a lot for the future:

<<The trunk of this 5G tree is made up of technologies that are the foundation for 5G mobile broadband. Many of these technologies played a key role in 4G (also known as LTE) and gave us the mobile streaming, high-speed downloads, and massive numbers of connections that we all take for granted today.

Qualcomm’s innovators were the pioneering force behind 4G’s foundations, developing:

The fundamental radio transmission technique (based on orthogonal frequency-division multiplexing, or “OFDM”) that 4G is built upon

Multiple-access schemes that defined how phones connect to the 4G network
Carrier aggregation concepts that supercharged 4G data speeds by operating different pieces of spectrum simultaneously

The use of multiple-input multiple-output antenna technology frameworks called “MIMO” to vastly boost data rates and reliability and several others, including power control and multiplexing concepts, which themselves were rooted in our technologies that defined 3G

In 5G, Qualcomm once again played the role of technology innovation leader, contributing important new ideas and expanding on this 4G base layer. For example:

Using OFDM with greater flexibility and adaptiveness to network and spectrum conditions
Adding a scalable numerology framework to be able to use the same system for everything from tiny IoT devices to cars to everything in between

Using millimeter wave spectrum, never utilized previously for cellular access, for lightning-fast speeds and mobility

Advanced channel coding to further optimize how very large amounts of data can be sent over the radio waves and decoded efficiently by mobile devices

Evolving 4G’s MIMO framework to “Massive MIMO” techniques to greatly boost coverage, data rates, and reliability

These Qualcomm inventions at the core of the 5G standard underpin modern cellular communications in everything from the simplest connected parking meters to your smartphone, to the world’s most advanced autonomous factories. This is why we consider them to be the trunk of the 5G tree.>>

https://www.qualcomm.com/news/onq/2022/12/why-qualcomm-is-the-true-leader-in-5g