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Resource Mapping Method For Demodulation Reference Signal And Base Station

Patent No. EP3618530 (titled "Resource Mapping Method For Demodulation Reference Signal And Base Station") was filed by Vivo Mobile Communication on Apr 27, 2018. The application was issued on Oct 6, 2021.

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Patent Oppositions

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

Company	Opposition Date	Representative
NOKIA SOLUTIONS AND NETWORKS	Jul 6, 2022	COHAUSZ & FLORACK

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

Date
Description

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Oct 30, 2025
Decision of the Board of Appeal
Oct 30, 2025
F3032 Notification(s) of the decision
Oct 20, 2025
F3013 Oral Proceedings: Forwarding minutes
Oct 20, 2025
F3315 Oral Proceedings: Minutes (Appellant : Proprietor)
Sep 9, 2025
(Electronic) Receipt
Sep 9, 2025
Letter accompanying subsequently filed items
May 16, 2025
(Electronic) Receipt
May 16, 2025
Letter accompanying subsequently filed items
May 16, 2025
Letter dealing with oral proceedings during the appeal procedure
Mar 11, 2025
F3305 Communication of the Board of Appeal (ex parte/ inter partes)
Mar 6, 2025
F3011.2 Oral Proceedings: Summons VICO
Mar 3, 2025
F3010 Oral proceedings: order for summons
Apr 19, 2024
(Electronic) Receipt
Apr 19, 2024
Amended claims with annotations
Apr 19, 2024
Amended claims with annotations
Apr 19, 2024
Amended claims with annotations
Apr 19, 2024
Auxiliary request during appeals procedure - 01
Apr 19, 2024
Auxiliary request during appeals procedure - 02
Apr 19, 2024
Letter accompanying subsequently filed items
Apr 19, 2024
Main request during appeals procedure
Apr 19, 2024
Non-Patent Literature cited during the appeal procedure
Apr 19, 2024
Non-Patent Literature cited during the appeal procedure
Apr 19, 2024
Statement of grounds of appeal
Feb 9, 2024
F3345 Forwarding of submissions to parties
Feb 9, 2024
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Feb 9, 2024
F3348 Confirmation of withdrawal of the opposition by the respondent and former opponent
Feb 5, 2024
(Electronic) Receipt
Feb 5, 2024
Letter accompanying subsequently filed items
Feb 5, 2024
Withdrawal of an opposition
Jan 5, 2024
Advice of delivery
Jan 3, 2024
F3204 Communication of the file number to the parties
Jan 3, 2024
F3204 Communication of the file number to the parties
Dec 21, 2023
Advice of delivery
Dec 21, 2023
Annex to the communication - opposition
Dec 21, 2023
Decision revoking the European patent
Dec 21, 2023
Decision revoking the European patent
Dec 21, 2023
Grounds for the decision (Annex) - opposition
Dec 21, 2023
Means of redress
Dec 21, 2023
Minutes of the oral proceedings (Opposition Division) - conclusion of the proceedings
Dec 21, 2023
Minutes of the oral proceedings (Opposition Division) - introduction of the parties
Dec 21, 2023
Provision of a copy of the minutes - opposition procedure
Dec 21, 2023
Provision of a copy of the minutes - opposition procedure
Dec 21, 2023
Scanned annex to a communication - opposition procedure
Dec 21, 2023
Scanned annex to a communication - opposition procedure
Dec 21, 2023
Transmittal of decision / summons - opposition
Dec 21, 2023
Transmittal of decision / summons - opposition
Dec 20, 2023
Decision of the Opposition Division and instruction
Dec 11, 2023
Brief communication - Opposition proceedings
Dec 6, 2023
(Electronic) Receipt
Dec 6, 2023
Letter accompanying subsequently filed items
Dec 6, 2023
Notice of appeal
Dec 5, 2023
Brief communication - Opposition proceedings
Dec 4, 2023
Brief communication - Opposition proceedings
Dec 1, 2023
Communication confirming withdrawal from representation
Dec 1, 2023
Communication of amended entries concerning the representative
Nov 28, 2023
(Electronic) Receipt
Nov 28, 2023
Letter accompanying subsequently filed items
Nov 28, 2023
Submission concerning change of proprietor's representative
Nov 27, 2023
(Electronic) Receipt
Nov 27, 2023
Letter accompanying subsequently filed items
Nov 27, 2023
Submission concerning change of proprietor's representative
Nov 9, 2023
Brief communication - Opposition proceedings
Nov 9, 2023
Information about the result of oral proceedings
Nov 8, 2023
(Electronic) Receipt
Nov 8, 2023
Auxiliary request during Opposition procedure
Nov 8, 2023
Auxiliary request during Opposition procedure
Nov 8, 2023
Auxiliary request during Opposition procedure - 04
Nov 8, 2023
Auxiliary request during Opposition procedure - 05
Nov 8, 2023
Brief communication - Opposition proceedings
Nov 8, 2023
Letter accompanying subsequently filed items
Nov 8, 2023
Written submission in preparation to/during oral proceedings
Nov 6, 2023
Brief communication - Opposition proceedings
Oct 30, 2023
(Electronic) Receipt
Oct 30, 2023
Brief communication - Opposition proceedings
Oct 30, 2023
Citation in opposition procedure - 020
Oct 30, 2023
Citation in opposition procedure - 020
Oct 30, 2023
Consolidated list of cited opposition documents
Oct 30, 2023
Letter accompanying subsequently filed items
Oct 30, 2023
Written submission in preparation to/during oral proceedings
Oct 16, 2023
Brief communication - Opposition proceedings
Sep 29, 2023
(Electronic) Receipt
Sep 29, 2023
Letter accompanying subsequently filed items
Sep 8, 2023
(Electronic) Receipt
Sep 8, 2023
(Electronic) Receipt
Sep 8, 2023
Auxiliary request during Opposition procedure
Sep 8, 2023
Auxiliary request during Opposition procedure
Sep 8, 2023
Auxiliary request during Opposition procedure
Sep 8, 2023
Auxiliary request during Opposition procedure
Sep 8, 2023
Auxiliary request during Opposition procedure
Sep 8, 2023
Auxiliary request during Opposition procedure - 01
Sep 8, 2023
Auxiliary request during Opposition procedure - 02
Sep 8, 2023
Auxiliary request during Opposition procedure - 03
Sep 8, 2023
Auxiliary request during Opposition procedure - 04
Sep 8, 2023
Auxiliary request during Opposition procedure - 05
Sep 8, 2023
Brief communication - Opposition proceedings
Sep 8, 2023
Brief communication - Opposition proceedings
Sep 8, 2023
Letter accompanying subsequently filed items
Sep 8, 2023
Letter accompanying subsequently filed items
Sep 8, 2023
Main request during Opposition procedure
Sep 8, 2023
Main request during Opposition procedure
Sep 8, 2023
Request for interpreters during oral proceedings
Sep 8, 2023
Written submission in preparation to/during oral proceedings
Sep 8, 2023
Written submission in preparation to/during oral proceedings
Mar 20, 2023
Advice of delivery
Mar 15, 2023
Advice of delivery
Mar 14, 2023
Annex to the communication - opposition
Mar 14, 2023
Information concerning oral proceedings
Mar 14, 2023
Scanned annex to a communication - opposition procedure
Mar 14, 2023
Summons to attend oral proceedings
Mar 14, 2023
Summons to attend oral proceedings
Mar 14, 2023
Transmittal of decision / summons - opposition
Mar 14, 2023
Transmittal of decision / summons - opposition
Feb 24, 2023
Brief communication - Opposition proceedings
Feb 21, 2023
(Electronic) Receipt
Feb 21, 2023
Citation in opposition procedure - 012
Feb 21, 2023
Citation in opposition procedure - 013
Feb 21, 2023
Letter accompanying subsequently filed items
Feb 21, 2023
Letter regarding the opposition procedure (no time limit)
Feb 14, 2023
Brief communication - Opposition proceedings
Feb 14, 2023
Request for documents
Jan 2, 2023
Brief communication - Opposition proceedings
Dec 20, 2022
(Electronic) Receipt
Dec 20, 2022
Citation in opposition procedure - 016
Dec 20, 2022
Citation in opposition procedure - 017
Dec 20, 2022
Citation in opposition procedure - 018
Dec 20, 2022
Citation in opposition procedure - 019
Dec 20, 2022
Letter accompanying subsequently filed items
Dec 20, 2022
Letter regarding the opposition procedure (no time limit)
Dec 5, 2022
Brief communication - Opposition proceedings
Nov 30, 2022
(Electronic) Receipt
Nov 30, 2022
Auxiliary request during Opposition procedure
Nov 30, 2022
Auxiliary request during Opposition procedure
Nov 30, 2022
Auxiliary request during Opposition procedure - 01
Nov 30, 2022
Auxiliary request during Opposition procedure - 02
Nov 30, 2022
Brief communication - Opposition proceedings
Nov 30, 2022
Letter accompanying subsequently filed items
Nov 30, 2022
Reply of the patent proprietor to the notice(s) of opposition
Nov 29, 2022
Brief communication - Opposition proceedings
Nov 29, 2022
Rejection of request for extension of time limit
Nov 28, 2022
(Electronic) Receipt
Nov 28, 2022
Letter accompanying subsequently filed items
Nov 28, 2022
Letter regarding the opposition procedure (no time limit)
Nov 28, 2022
Letter regarding the opposition procedure (no time limit)
Nov 24, 2022
(Electronic) Receipt
Nov 24, 2022
Letter accompanying subsequently filed items
Nov 24, 2022
Request for extension of time limit
Sep 13, 2022
Brief communication - Opposition proceedings
Sep 8, 2022
(Electronic) Receipt
Sep 8, 2022
Authorisation
Sep 8, 2022
Letter accompanying subsequently filed items
Sep 8, 2022
Letter regarding the opposition procedure (no time limit)
Aug 17, 2022
Brief communication - Opposition proceedings
Aug 17, 2022
Communication concerning the filing of a power of attorney
Aug 17, 2022
Communication of amended entries concerning the representative
Aug 10, 2022
(Electronic) Receipt
Aug 10, 2022
Authorisation
Aug 10, 2022
Letter accompanying subsequently filed items
Aug 10, 2022
Submission concerning change of proprietor's representative
Jul 20, 2022
Communication of a notice of opposition and request to file observations
Jul 20, 2022
Notice of further oppositions to opponent(s)
Jul 11, 2022
Communication of a notice of opposition - first information to patent proprietor
Jul 6, 2022
(Electronic) Receipt
Jul 6, 2022
Any annexes (other than citation) to an opposition letter
Jul 6, 2022
Citation in opposition procedure - 001
Jul 6, 2022
Citation in opposition procedure - 002
Jul 6, 2022
Citation in opposition procedure - 002
Jul 6, 2022
Citation in opposition procedure - 003
Jul 6, 2022
Citation in opposition procedure - 004
Jul 6, 2022
Citation in opposition procedure - 005
Jul 6, 2022
Citation in opposition procedure - 006
Jul 6, 2022
Citation in opposition procedure - 007
Jul 6, 2022
Citation in opposition procedure - 008
Jul 6, 2022
Citation in opposition procedure - 009
Jul 6, 2022
Citation in opposition procedure - 010
Jul 6, 2022
Citation in opposition procedure - 011
Jul 6, 2022
Citation in opposition procedure - 012
Jul 6, 2022
Citation in opposition procedure - 013
Jul 6, 2022
Citation in opposition procedure - 014
Jul 6, 2022
Citation in opposition procedure - 015
Jul 6, 2022
Citation in opposition procedure - 020
Jul 6, 2022
Citation in opposition procedure - 021
Jul 6, 2022
Notice of opposition
Jul 6, 2022
Notice of opposition
Oct 19, 2021
Transmission of the certificate for a European patent pursuant to Rule 74 EPC
Sep 9, 2021
Decision to grant a European patent
Aug 31, 2021
(Electronic) Receipt
Aug 31, 2021
Filing of the translations of the claims
Aug 31, 2021
French translation of claims
Aug 31, 2021
German translation of the claims
Jun 16, 2021
Bibliographic data of the European patent application
Jun 16, 2021
Communication about intention to grant a European patent
Jun 16, 2021
Intention to grant (signatures)
Jun 16, 2021
Text intended for grant (clean copy)
Jun 16, 2021
Text intended for grant (version for approval)
Dec 29, 2020
(Electronic) Receipt
Dec 29, 2020
Amended claims with annotations
Dec 29, 2020
Amended description with annotations
Dec 29, 2020
Claims
Dec 29, 2020
Description
Dec 29, 2020
Letter accompanying subsequently filed items
Dec 29, 2020
Reply to communication from the Examining Division
Aug 28, 2020
Annex to the communication
Aug 28, 2020
Communication from the Examining Division
Aug 24, 2020
Examination started
Jun 18, 2020
Communication of amended entries concerning the representative
Jun 7, 2020
(Electronic) Receipt
Jun 7, 2020
(Electronic) Receipt
Jun 7, 2020
Amended claims filed after receipt of (European) search report
Jun 7, 2020
Amended claims with annotations
Jun 7, 2020
Amended description filed after receipt of (European) search report
Jun 7, 2020
Amended description with annotations
Jun 7, 2020
Amendments received before examination
Jun 7, 2020
Letter accompanying subsequently filed items
Jun 7, 2020
Letter accompanying subsequently filed items
Jun 7, 2020
Matter concerning the application
Jun 7, 2020
Priority search results
Jun 7, 2020
Priority search results
Jun 4, 2020
Annexes in respect of a client data request
Jun 4, 2020
Letter accompanying subsequently filed items
Jun 4, 2020
Submission concerning change of applicant's representative
Apr 16, 2020
Invitation to declare maintenance of the application and to correct deficiencies in the Written Opinion/amend application
Mar 27, 2020
Communication regarding the transmission of the European search report
Mar 27, 2020
European search opinion
Mar 27, 2020
Information on Search Strategy
Mar 27, 2020
Supplementary European search report
Mar 19, 2020
Search started
Feb 5, 2020
Notification of forthcoming publication
Jan 29, 2020
Invitation to indicate correct address of inventor
Jan 29, 2020
Invitation to indicate correct address of inventor
Jan 29, 2020
Invitation to indicate correct address of inventor
Jan 29, 2020
Invitation to indicate correct address of inventor
Jan 23, 2020
Letter which had not been notified
Jan 23, 2020
Letter which had not been notified
Jan 23, 2020
Letter which had not been notified
Jan 23, 2020
Letter which had not been notified
Dec 3, 2019
Communication to designated inventor
Dec 3, 2019
Communication to designated inventor
Dec 3, 2019
Communication to designated inventor
Dec 3, 2019
Communication to designated inventor
Nov 12, 2019
(Electronic) Receipt
Nov 12, 2019
Abstract
Nov 12, 2019
Amended claims filed after receipt of (European) search report
Nov 12, 2019
Amended claims with annotations
Nov 12, 2019
Claims
Nov 12, 2019
Description
Nov 12, 2019
Drawings
Nov 12, 2019
Request for entry into the European phase
Nov 11, 2019
Copy of the international preliminary report on patentability
Nov 11, 2019
Translation of the international preliminary report on patentability
Sep 6, 2019
Information on entry into European phase
Nov 20, 2018
Priority document (electronically transmitted)
Nov 1, 2018
Copy of the international search report
Nov 1, 2018
Copy of the translated international search report
Nov 1, 2018
International publication pamphlet

EP3618530

VIVO MOBILE COMMUNICATION

Application Number: EP18791267A
Filing Date: Apr 27, 2018
Status: Granted And Under Opposition; Sep 3, 2021
Publication Date: Oct 6, 2021
External Links: Slate, Register , Google Patents