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Extract from the Register of European Patents

EP About this file: EP4478674

EP4478674 - WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS TRANSMISSION DEVICE [Right-click to bookmark this link]
StatusGrant of patent is intended
Status updated on  26.02.2026
Database last updated on 14.03.2026
FormerRequest for examination was made
Status updated on  15.11.2024
FormerThe international publication has been made
Status updated on  11.08.2023
Most recent event   Tooltip28.02.2026New entry: Renewal fee paid 
Applicant(s)For all designated states
NTT, Inc.
5-1, Otemachi 1-chome
Chiyoda-ku
Tokyo 100-8116 / JP
[2025/40]
Former [2024/51]For all designated states
Nippon Telegraph And Telephone Corporation
5-1, Otemachi 1-chome
Chiyoda-ku
Tokyo 100-8116 / JP
Inventor(s)01 / KURIYAMA, Keita
Musashino-shi, Tokyo 180-8585 / JP
02 / FUKUZONO, Hayato
Musashino-shi, Tokyo 180-8585 / JP
03 / MIYAGI, Toshifumi
Musashino-shi, Tokyo 180-8585 / JP
04 / ONIZAWA, Takeshi
Musashino-shi, Tokyo 180-8585 / JP
 [2024/51]
Representative(s)Hoffmann Eitle
Patent- und Rechtsanwälte PartmbB
Arabellastraße 30
81925 München / DE
[2024/51]
Application number, filing date22924891.907.02.2022
[2024/51]
WO2022JP04753
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2023148984
Date:10.08.2023
Language:JA
[2023/32]
Type: A1 Application with search report 
No.:EP4478674
Date:18.12.2024
Language:EN
[2024/51]
Search report(s)International search report - published on:JP10.08.2023
(Supplementary) European search report - dispatched on:EP06.11.2025
ClassificationIPC:H04L27/00, H04L27/36, H04L1/00, H04W52/26
[2025/50]
CPC:
H04L27/0008 (EP); H04L1/0003 (EP,US); H04L1/0009 (EP);
H04L27/36 (EP); H04W52/241 (US); H04W52/262 (EP)
Former IPC [2024/51]H04L27/36
Designated contracting statesAL,   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 [2024/51]
TitleGerman:DRAHTLOSKOMMUNIKATIONSVERFAHREN, DRAHTLOSKOMMUNIKATIONSSYSTEM UND DRAHTLOSÜBERTRAGUNGSVORRICHTUNG[2024/51]
English:WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS TRANSMISSION DEVICE[2024/51]
French:PROCÉDÉ DE COMMUNICATION SANS FIL, SYSTÈME DE COMMUNICATION SANS FIL, ET DISPOSITIF DE TRANSMISSION SANS FIL[2024/51]
Entry into regional phase02.08.2024Translation filed 
02.08.2024National basic fee paid 
02.08.2024Search fee paid 
02.08.2024Designation fee(s) paid 
02.08.2024Examination fee paid 
Examination procedure02.08.2024Examination requested  [2024/51]
27.02.2025Amendment by applicant (claims and/or description)
28.01.2026Date on which the examining division has become responsible
26.02.2026Communication of intention to grant the patent
Fees paidRenewal fee
02.08.2024Renewal fee patent year 03
20.02.2025Renewal fee patent year 04
27.02.2026Renewal fee patent year 05
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A] JP2008109320  (NEC CORP et al.) [A] 1-8 * paragraph [0038] - paragraph [0039] *
 [A] WO2021213629  (HUAWEI TECH CO LTD et al.) [A] 1-8 * page 8, line 21 - page 10, line 5 *
International search[A] WO2006076697  (ATHEROS COMM INC et al.) [A] 1-8 * paragraphs [0007], [0020], [0034]-[0042], fig. 1, 3, 4B, table 1 *
 [A] CN101867437  (HUAWEI TECH CO LTD et al.) [A] 1-8 * paragraphs [0004]-[0007], [0053]-[0058], fig. 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 *
 [A] JP2015177435  (NEC CORP et al.) [A] 1-8 * paragraphs [0002]-[0011], [0035]-[0104], fig. 3, 4, 5, 6, 7, 8 *
 [A]   RAMDANE CHOUITEM: "EVM based AMC for an OFDM system", WIRELESS TELECOMMUNICATIONS SYMPOSIUM (WTS), 2010, IEEE, 21 April 2010 (2010-04-21), Piscataway, NJ, USA , pages 1 - 5, XP031686233, ISBN: 978-1-4244-6558-3 [A] 1-8 * sections I, II, III, fig. 4, table 1 *
by applicant  "IEEE Std 802.11ac-2013", IEEE, 2013
   "ETSI EN", DIGITAL VIDEO BROADCASTING, November 2014 (2014-11-01)
   JURAJ GAZDADENIS DUPAKDUSAN KOCUR: "Department of Electronics and Multimedia Communications, Faculty of Electrical Engineering and Informatics", 2011, TECHNICAL UNIVERSITY OF KOSICE, article "M-APSK Modulation for SC-FDMA Communication Systems"
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.