Verfahren zur Bestimmung eines Vorcodierers auf Verteilte Art

Details

Veröffentlichungs-Nr.

EP3306828

Aktenzeichen

EP16192880

Anmeldetag

7. Oktober 2016

Veröffentlichung

5. Juni 2019

Erteilung

5. Juni 2019

Rechtsraum

EP

IPC

H04B7/024H04W92/20

Abstract

For transmitting data from a plurality of transmitters to a plurality of receivers via a MIMO channel, precoders to be respectively applied by said transmitters are determined in a distributed fashion. Said precoders jointly form an overall precoder. Said transmitters are interconnected by coordination links implying quantization operations. Each and every transmitter: determines (S302) an initial version of the overall precoder from its own view of the MIMO channel; transmits (S303) to the other transmitters quantized versions of the initial version, thus implying quantization errors; receives (S304) initial versions of the overall precoder obtained by the other transmitters; obtains (S305) statistical distributions of the quantization errors; optimizes (S306) matrices parameters of a multivariate combination function combining the quantized versions of the initial versions of the overall precoder, so as to obtain an adjusted own view of the overall precoder, wherein the matrices parameters are optimized with respect to an estimation of a figure of merit representative of performance of the transmissions; and transmits (S307) the data by using the adjusted own view of the overall precoder.

Anmelder

Firmen

Mitsubishi Electric R&D Centre Europe B.V.
Mitsubishi Electric Corporation

Land

🇳🇱 Niederlande

Fachgebiete