blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

Italy joins the Federated Register

Click here for more information on the Federated Register.

2025-06-12

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register User Manual
European Patent Register – pocket guide
FAQ - European Patent Register
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP3698583

EP3698583 - DISTRIBUTED MIMO SYNCHRONIZATION [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  10.10.2025
Database last updated on 24.03.2026
FormerThe patent has been granted
Status updated on  01.11.2024
FormerGrant of patent is intended
Status updated on  13.10.2024
FormerExamination is in progress
Status updated on  21.10.2021
FormerRequest for examination was made
Status updated on  24.07.2020
FormerThe international publication has been made
Status updated on  26.04.2019
Formerunknown
Status updated on  28.08.2018
Most recent event   Tooltip17.10.2025Lapse of the patent in a contracting state
New state(s): DK		published on 19.11.2025  [2025/47]
Applicant(s)For all designated states
Telefonaktiebolaget LM Ericsson (PUBL)
164 83 Stockholm / SE
[2024/49]
Former [2020/35]For all designated states
Telefonaktiebolaget LM Ericsson (PUBL)
164 83 Stockholm / SE
Inventor(s)01 / FRENGER, Pål
Enskiftesgatan 8
583 34 Linköping / SE
02 / LARSSON, Erik G.
Örsättersvägen 1
586 63 Linköping / SE
03 / BJÖRNSON, Emil
Befälsgatan 11
587 50 Linköping / SE
 [2020/35]
Representative(s)Ericsson
Patent Development
Torshamnsgatan 21-23
164 80 Stockholm / SE
[2020/35]
Application number, filing date18755471.215.08.2018
[2020/35]
WO2018EP72130
Priority number, dateUS201762573280P17.10.2017         Original published format: US 201762573280 P
[2020/35]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2019076513
Date:25.04.2019
Language:EN
[2019/17]
Type: A1 Application with search report 
No.:EP3698583
Date:26.08.2020
Language:EN
The application published by WIPO in one of the EPO official languages on 25.04.2019 takes the place of the publication of the European patent application.
[2020/35]
Type: B1 Patent specification 
No.:EP3698583
Date:04.12.2024
Language:EN
[2024/49]
Search report(s)International search report - published on:EP25.04.2019
ClassificationIPC:H04W56/00, H04J3/06
[2020/35]
CPC:
H04W56/002 (EP,US); H04B7/024 (US)
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 [2020/35]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERTEILTE MIMO-SYNCHRONISATION[2020/35]
English:DISTRIBUTED MIMO SYNCHRONIZATION[2020/35]
French:SYNCHRONISATION MIMO DISTRIBUÉE[2020/35]
Entry into regional phase16.04.2020National basic fee paid 
16.04.2020Designation fee(s) paid 
16.04.2020Examination fee paid 
Examination procedure16.04.2020Examination requested  [2020/35]
16.04.2020Date on which the examining division has become responsible
25.11.2020Amendment by applicant (claims and/or description)
20.10.2021Despatch of a communication from the examining division (Time limit: M04)
26.01.2022Reply to a communication from the examining division
14.10.2024Communication of intention to grant the patent
29.10.2024Fee for grant paid
29.10.2024Fee for publishing/printing paid
29.10.2024Receipt of the translation of the claim(s)
Opposition(s)05.09.2025No opposition filed within time limit [2025/46]
Fees paidRenewal fee
27.08.2020Renewal fee patent year 03
27.08.2021Renewal fee patent year 04
29.08.2022Renewal fee patent year 05
28.08.2023Renewal fee patent year 06
27.08.2024Renewal fee patent year 07
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT04.12.2024
BG04.12.2024
CZ04.12.2024
DK04.12.2024
EE04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
IT04.12.2024
LV04.12.2024
NL04.12.2024
PL04.12.2024
RO04.12.2024
SE04.12.2024
SK04.12.2024
SM04.12.2024
NO04.03.2025
RS04.03.2025
GR05.03.2025
IS04.04.2025
PT04.04.2025
[2025/47]
Former [2025/42]AT04.12.2024
BG04.12.2024
CZ04.12.2024
EE04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
IT04.12.2024
LV04.12.2024
NL04.12.2024
PL04.12.2024
RO04.12.2024
SE04.12.2024
SK04.12.2024
SM04.12.2024
NO04.03.2025
RS04.03.2025
GR05.03.2025
IS04.04.2025
PT04.04.2025
Former [2025/36]AT04.12.2024
BG04.12.2024
CZ04.12.2024
EE04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
IT04.12.2024
LV04.12.2024
NL04.12.2024
PL04.12.2024
RO04.12.2024
SK04.12.2024
SM04.12.2024
NO04.03.2025
RS04.03.2025
GR05.03.2025
IS04.04.2025
PT04.04.2025
Former [2025/35]AT04.12.2024
BG04.12.2024
EE04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
LV04.12.2024
NL04.12.2024
PL04.12.2024
RO04.12.2024
SM04.12.2024
NO04.03.2025
RS04.03.2025
GR05.03.2025
IS04.04.2025
PT04.04.2025
Former [2025/34]BG04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
LV04.12.2024
NL04.12.2024
PL04.12.2024
SM04.12.2024
NO04.03.2025
RS04.03.2025
GR05.03.2025
IS04.04.2025
PT04.04.2025
Former [2025/33]BG04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
LV04.12.2024
NL04.12.2024
PL04.12.2024
SM04.12.2024
NO04.03.2025
RS04.03.2025
GR05.03.2025
Former [2025/32]BG04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
LV04.12.2024
NL04.12.2024
SM04.12.2024
NO04.03.2025
RS04.03.2025
GR05.03.2025
Former [2025/25]BG04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
LV04.12.2024
NL04.12.2024
NO04.03.2025
RS04.03.2025
GR05.03.2025
Former [2025/23]BG04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
LV04.12.2024
NO04.03.2025
RS04.03.2025
GR05.03.2025
Former [2025/22]BG04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
LV04.12.2024
NO04.03.2025
GR05.03.2025
Former [2025/21]BG04.12.2024
ES04.12.2024
FI04.12.2024
HR04.12.2024
Cited inInternational search[IY] US2017195109  (PEREZ-CRUZ FERNANDO et al.) [I] 1,2,7-11 * paragraph [0044] - paragraph [0068]; figures 1,4,5 *[Y] 3-6
 [Y]   ZHANG YUXIAN ET AL: "Measurement and Evaluations of Coherent Joint Transmission for 5G Networks", 2017 IEEE 85TH VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING), IEEE, 4 June 2017 (2017-06-04), pages 1 - 5, XP033254646, DOI: 10.1109/VTCSPRING.2017.8108655 [Y] 3-6 * page 3, left column; figure 2 * * column III.C *

DOI:   http://dx.doi.org/10.1109/VTCSpring.2017.8108655
 [A]   ROBERT D PREUSS ET AL: "Two-Way Synchronization for Coordinated Multicell Retrodirective Downlink Beamforming", IEEE TRANSACTIONS ON SIGNAL PROCESSING, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 59, no. 11, 1 November 2011 (2011-11-01), pages 5415 - 5427, XP011385679, ISSN: 1053-587X, DOI: 10.1109/TSP.2011.2162329 [A] 1-11 * page 5417 - page 5418; figures 3,4 *

DOI:   http://dx.doi.org/10.1109/TSP.2011.2162329
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.