Speaker: Stephen Felix, NVIDIA

Conference: Multicore Challenge 2014 (click here to see full programme)
Theme Presenter: Stephen Felix
Organistation: NVIDIA, Distinguished Engineer.
Presentation Title: Multicore Cellular Baseband Processing for mobile user equipment
Abstract: Mobile network operators choose to deploy subsets of the many features offered by the widely used and evolving 3GPP cellular standards in different ways. The standards do not prescribe exactly how signals are detected, demodulated and decoded, leaving plenty of freedom for innovation in algorithm design and implementation.

A scalable, programmable modem hardware platform facilitates such innovation as well as development, debugging, achieving network approval and upgradeability. However, unit cost and power efficiency are also very critical issues in battery powered, consumer equipment. A multimode cellular modem must work efficiently over a very broad spectrum of use cases ranging from standby to a GSM voice call to an LTE data download.

In this talk, I will try to describe how NVIDIA®’s Icera® LTE modem baseband architecture meets these diverse requirements and why a multicore solution is used.

  • A mobile multimode cellular modem is a complex and highly constrained system
  • The performance required and acceptable power consumption vary greatly between use cases
  • A multicore solution is a good fit for cellular modems in the near future
Biography Stephen graduated in Electronics and Communications engineering from Bath University in 1990 and began his career as a silicon design engineer at Inmos/ST microelectronics joining the T9000 Transputer project. Subsequently he helped to develop a new micro-architecture for the Transputer that became used in ST’s setup-box chips. He then moved to the USA where he worked in the Alpha Microprocessor Development Group (DEC/Compaq) on the 8-way issue, superscalar SMT EV8 Alpha processor as an implementation team leader and then for Intel where he co-invented the bi-directional ring-cache architecture since used in many Intel multicore processor chips. Stephen returned to the UK in 2002 to join Icera® (now NVIDIA®) where he has co-developed the architecture, micro-architecture and physical implementation of DXP – a processor designed for power efficient, high performance cellular baseband signal processing. Stephen is named as an inventor on more than 15 patents covering a variety of ideas including circuit design, computer architecture and digital signal processing.

Slides and recording unavailable at the request of the speaker