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1. WO2020135503 - METHOD AND DEVICE FOR COUNTERING DOPPLER SHIFT

Publication Number WO/2020/135503
Publication Date 02.07.2020
International Application No. PCT/CN2019/128309
International Filing Date 25.12.2019
IPC
H04W 36/32 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Handoff or reselecting arrangements
24Reselection being triggered by specific parameters
32by location or mobility data, e.g. speed data
CPC
H04L 2027/0026
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
0014Carrier regulation
0024at the receiver end
0026Correction of carrier offset
H04L 27/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
H04L 27/0014
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
0014Carrier regulation
H04L 27/26
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
H04L 27/2601
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
27Modulated-carrier systems
26Systems using multi-frequency codes
2601Multicarrier modulation systems
H04W 36/08
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
36Hand-off or reselection arrangements
08Reselecting an access point
Applicants
  • 中兴通讯股份有限公司 ZTE CORPORATION [CN]/[CN]
Inventors
  • 张骏凌 ZHANG, Junling
Agents
  • 北京品源专利代理有限公司 BEYOND ATTORNEYS AT LAW
Priority Data
201811593569.825.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND DEVICE FOR COUNTERING DOPPLER SHIFT
(FR) PROCÉDÉ ET DISPOSITIF DE NEUTRALISATION D'UN DÉCALAGE DOPPLER
(ZH) 一种对抗多普勒频移的方法及设备
Abstract
(EN)
Disclosed by embodiments of the present application are a method and device for countering Doppler shift, the method comprising: when a user equipment (UE) performs cell switching, acquiring a Doppler shift estimation value at the last moment at which the UE is within the original cell; fetching the inverse number of the Doppler shift estimation value, and using the inverse number of the Doppler shift estimation value for carrier frequency offset (CFO) compensation in automatic frequency control (AFC).
(FR)
Les modes de réalisation de la présente invention concernent un procédé et un dispositif de neutralisation d'un décalage Doppler. Le procédé comprend les étapes consistant à : lorsqu'un équipement utilisateur (UE) effectue une commutation de cellule, acquérir une valeur d'estimation de décalage Doppler au dernier moment auquel l'UE s'est trouvé dans la cellule d'origine ; puis extraire le nombre inverse de la valeur d'estimation de décalage Doppler et utiliser le nombre inverse de la valeur d'estimation de décalage Doppler pour une compensation de décalage de fréquence porteuse (CFO) dans une commande de fréquence automatique (AFC).
(ZH)
本申请实施例公开了一种对抗多普勒频移的方法及设备,其中该方法包括:在用户设备进行小区切换的情况下,获取所述用户设备在源小区内最后时刻的多普勒频移估计值;对所述多普勒频移估计值取相反数,并将所述多普勒频移估计值的相反数用于自动频率控制AFC中的载波频率迁移CFO补偿。
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