EP 2926514 A1 20151007 - A NEW INTERPOLATION ALGORITHM FOR PILOT-BASED CHANNEL ESTIMATION IN OFDM SYSTEMS
Title (en)
A NEW INTERPOLATION ALGORITHM FOR PILOT-BASED CHANNEL ESTIMATION IN OFDM SYSTEMS
Title (de)
NEUER INTERPOLATIONSALGORITHMUS ZUR PILOTBASIERTEN KANALSCHÄTZUNG IN OFDM-SYSTEMEN
Title (fr)
NOUVEL ALGORITHME D'INTERPOLATION POUR UNE ESTIMATION DE CANAL À BASE DE PILOTES DANS DES SYSTÈMES OFDM
Publication
Application
Priority
- EP 12306117 A 20120917
- EP 13368026 A 20130902
- EP 2013068768 W 20130910
- EP 13759260 A 20130910
Abstract (en)
[origin: WO2014041006A1] An OFDM receiver (1) such as a WiFi receiver receives data via a plurality of data subcarriers and a plurality of pilot subcarriers. The data and pilot signals are processed through a conventional demultiplexer (2) and DFT(3) before delivering each pilot signal to a transfer function estimation module (4). The transfer function estimation module (4) includes a Cartesian to polar coordinate conversion module (5) to convert each pilot signal to polar form and facilitate separate calculation of amplitude and phase transfer functions. An amplitude phase transfer function and phase transfer function is then calculated for each data subcarrier and used to form a complex transfer function for each subcarrier. The complex transfer function is then applied to each respective subcarrier via an equaliser to equalise each data subcarrier and correct for data signal corruption caused by attenuation noise or other factors.
IPC 8 full level
H04L 25/02 (2006.01); H04L 25/03 (2006.01); H04L 27/26 (2006.01)
CPC (source: EP)
H04L 25/022 (2013.01); H04L 25/0232 (2013.01); H04L 25/03159 (2013.01); H04L 27/2647 (2013.01)
Citation (search report)
See references of WO 2014041006A1
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 2014041006 A1 20140320; EP 2790363 A1 20141015; EP 2926514 A1 20151007
DOCDB simple family (application)
EP 2013068768 W 20130910; EP 13368026 A 20130902; EP 13759260 A 20130910