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1. WO2022029733 - DE-ICI FILTER ESTIMATION FOR PHASE NOISE MITIGATION

Publication Number WO/2022/029733
Publication Date 10.02.2022
International Application No. PCT/IB2021/057297
International Filing Date 07.08.2021
IPC
H04L 25/03 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
CPC
H04L 2025/03414
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
0335characterised by the type of transmission
03375Passband transmission
03414Multicarrier
H04L 25/03821
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
25Baseband systems
02Details
03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
03006Arrangements for removing intersymbol interference
03821Inter-carrier interference cancellation [ICI]
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE]/[SE]
Inventors
  • HUI, Dennis
  • AFSHANG, Mehrnaz
  • CHENG, Jung-Fu
  • GRANT, Stephen
Agents
  • MEACHAM, Taylor
  • WESTOVER, Ben
  • GERLACH, Tim
  • KEARNS, Brian
  • LIU, Ronald
  • STANLEY, Michael
  • WARD, Ronald
  • BURNS, Whitman
  • CAMERON, Michael
  • HENDERSON, Mymy
  • CANDELARIO, Bryan
  • WILLIAMS, Bradley
Priority Data
63/063,10507.08.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DE-ICI FILTER ESTIMATION FOR PHASE NOISE MITIGATION
(FR) ESTIMATION DE FILTRE DE RÉDUCTION D'ICI POUR ATTÉNUATION DE BRUIT DE PHASE
Abstract
(EN) According to some embodiments, a method performed by a wireless device comprises receiving a wireless signal Rk over all subcarriers allocated to the wireless device. The signal Rk comprises a phase tracking reference signal (PT-RS) on a subset of subcarriers allocated to the wireless device and the subset comprises at least one non-contiguous subcarrier. The method further comprises computing a de-inter-carrier interference (ICI) filter based on the PT-RS and a channel estimate using a convolutional matrix CR of the received signal Rk and applying the de-ICI filter to the received signal Rk to generate a de-ICI filtered signal.
(FR) Selon certains modes de réalisation, un procédé mis en œuvre par un dispositif sans fil consiste à recevoir un signal sans fil Rk sur toutes les sous-porteuses attribuées au dispositif sans fil. Le signal Rk comprend un signal de référence de suivi de phase (PT-RS) sur un sous-ensemble de sous-porteuses attribuées au dispositif sans fil, et le sous-ensemble comprend au moins une sous-porteuse non contiguë. Le procédé comprend en outre le calcul d'un filtre de réduction d'interférence inter-porteuse (ICI) sur la base du PT-RS et d'une estimation de canal à l'aide d'une matrice de convolution CR du signal reçu Rk et l’application du filtre de réduction d'ICI au signal reçu Rk pour générer un signal filtré de réduction d'ICI.
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