Patrick Albert Krief

Title: Patrick Albert Krief: Innovator in Communication Technologies

Introduction

Patrick Albert Krief is a notable inventor based in Savigny sur Orge, France. He has made significant contributions to the field of communication technologies, particularly in the development of methods for channel estimation and antenna arrays. With a total of 2 patents, his work is influential in advancing modern communication systems.

Latest Patents

One of Krief's latest patents is a method for power delay profile (PDP) estimation in the frequency domain. This invention relates to 5G systems, focusing on channel estimation and demodulation. The power delay profile is estimated directly in the frequency domain using LMMSE properties, leveraging knowledge of channel statistics. An example embodiment of this patent applies an approximation by estimating the second-order statistics of the channel autocorrelation function in the time domain, represented by the variance of the derivative of raw channel estimates in the frequency domain.

Another significant patent involves antenna arrays. This invention discloses an apparatus and method related to antenna arrays, which includes transmitting a reference signal to one or more remote user terminals from each of a plurality of sub-arrays. Each sub-array consists of a quantity of radiating elements capable of establishing a backhaul link with a remote communications node. The method also includes receiving measurement signals from the remote user terminals, which indicate characteristics of the received reference signals. Based on these signals, a first subset of the sub-arrays is selected for backhaul communications, while a second subset is designated for access communications with the remote user terminals.

Career Highlights

Throughout his career, Patrick Krief has worked with prominent companies, including Nokia Solutions and Networks. His experience in these organizations has allowed him to develop and refine his innovative ideas in communication technologies.

Collaborations

Some of his notable coworkers include Ben Rached Nidham and Nidham Ben Rached. Their collaboration has contributed to the advancement of various projects in the field.

Conclusion

Patrick Albert Krief is a distinguished inventor whose work in communication technologies has led to significant advancements in the industry. His patents reflect a deep understanding of modern communication systems and their complexities.