Beyond-5G Usage Scenarios
How BRAVE physical-layer techniques map onto demanding wireless use cases.
From techniques to use cases
BRAVE is a collaborative research project started in January 2018 that aims at creating new physical-layer (PHY) techniques devoted to beyond-5G wireless communications. Techniques are only useful when they are tied to concrete requirements, so the project organises its work around usage scenarios.
Each scenario sets targets for data rate, latency, reliability and energy use. These targets then determine which PHY options are worth developing further.
Side note: a scenario is only complete when its constraints are written down, including the ones that make it difficult.
Scenario families
Dense and high-capacity access
Many users sharing a small area demand high spectral efficiency and robust scheduling. PHY design must keep interference manageable without excessive signalling.
Reliable low-latency links
Control loops and industrial links require short frame durations and predictable error behaviour, which constrains coding and waveform length.
Requirement mapping
- Each scenario is translated into measurable PHY targets
- Trade-offs between throughput and reliability are stated explicitly
- Complexity and energy use are assessed alongside performance
The mapping is revisited as channel measurements and simulations mature, so that the scenario definitions stay consistent with the evidence.
Scenario visuals
Questions on scenarios
The consortium defines them jointly, using project assumptions and the requirements that each physical-layer technique must meet.
They are refined as evidence accumulates, and changes are documented so that results remain traceable.
Partner enquiries
For technical background, see sub-THz research and the project overview.