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International application No. Applicant's or agent's file reference
PCT/EP2019/053009 P76570 WO1
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
07 February 2019
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.
6. Drawings
The figure of the drawings to be published with the abstract is Figure No.     1    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
none of the figures is to be published with the abstract.


     H04W 74/08 (2009.01)i; H04L 12/801 (2013.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
     H04W; H04L
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
EPO-Internal, WPI Data


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
YONG HE ET AL, "Deterministic Backoff: Toward Efficient Polling for IEEE 802.11e HCCA in Wireless Home Networks", IEEE TRANSACTIONS ON MOBILE COMPUTING, IEEE SERVICE CENTER, LOS ALAMITOS, CA, US,Vol. 10, No. 12, 01 December 2011 (2011-12-01), page 1726-1740,
section 1
section 3
US 2011007703 A1 (HE YONG [CN] ET AL) 13 January 2011 (2011-01-13)
paragraph [0007] - paragraph [0008]; figure 1
paragraph [0044]; figure 3
US 2004095911 A1 (BENVENISTE MATHILDE [US]) 20 May 2004 (2004-05-20)
paragraph [0043]
paragraph [0069]
paragraph [0079]
paragraph [0084] - paragraph [0089]
US 2018220457 A1 (KOORAPATY HAVISH [US] ET AL) 02 August 2018 (2018-08-02)
paragraph [0101] - paragraph [0105]
paragraph [0140] - paragraph [0144]; figure 10
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
document cited by the applicant in the international application
earlier application or patent but published on or after the international filing date
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
document referring to an oral disclosure, use, exhibition or other means
document published prior to the international filing date but later than the priority date claimed
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
document member of the same patent family


Patent document cited in search report Publication date
Patent family member(s) Publication date
US 2011007703 A1
13 January 2011
CN 101982003 A
EP 2106166 A1
US 2011007703 A1
WO 2009120332 A1
23 February 2011
30 September 2009
13 January 2011
01 October 2009
US 2004095911 A1
20 May 2004
US 2004095911 A1
US 2008013508 A1
US 2012327919 A1
20 May 2004
17 January 2008
27 December 2012
US 2018220457 A1
02 August 2018
EP 3335516 A1
US 2018220457 A1
WO 2017030491 A1
20 June 2018
02 August 2018
23 February 2017
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
17 October 2019
Date of mailing of the international search report:
25 October 2019
Authorized officer:
Cortés Gómez, F
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