Global Patent Index - EP 3146646 A1

EP 3146646 A1 20170329 - BLIND TECHNIQUE FOR WEIGHT SELECTION IN SIMULTANEOUS TRANSMIT AND RECEIVE STRUCTURE

Title (en)

BLIND TECHNIQUE FOR WEIGHT SELECTION IN SIMULTANEOUS TRANSMIT AND RECEIVE STRUCTURE

Title (de)

BLINDVERFAHREN ZUR GEWICHTSAUSWAHL BEI EINER SIMULTANEN SENDE- UND EMPFANGSSTRUKTUR

Title (fr)

TECHNIQUE AVEUGLE POUR SÉLECTION DE POIDS DANS UNE STRUCTURE D'ÉMISSION ET DE RÉCEPTION SIMULTANÉES

Publication

EP 3146646 A1 20170329 (EN)

Application

EP 14892294 A 20140523

Priority

US 2014039404 W 20140523

Abstract (en)

[origin: WO2015178932A1] Embodiments of a wireless communication system and methods for cancelling echo signals in the system are generally described herein. Some of these embodiments include phase shifters to generate output signals, each having a phase shift relative to a transmitted signal, a attenuator unit to attenuate the output signal of each of the phase shifters based on weights to generate attenuated signals, each corresponding to the output signal of one of the phase shifters, a weight calculator to perform an operation for selecting values for the weights without using components associated with the transmitted signal as inputs for calculating the values for the weights, and at least one summer to sum the attenuated signals and a received signal containing an echo signal to generate an echo-canceled signal.

IPC 8 full level

H04B 7/015 (2006.01)

CPC (source: EP)

H04B 3/232 (2013.01); H04B 7/0848 (2013.01); H04B 1/525 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2015178932 A1 20151126; CN 106233638 A 20161214; CN 106233638 B 20200407; EP 3146646 A1 20170329; EP 3146646 A4 20180425; TW 201545519 A 20151201; TW I556613 B 20161101

DOCDB simple family (application)

US 2014039404 W 20140523; CN 201480078056 A 20140523; EP 14892294 A 20140523; TW 104112427 A 20150417