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1. WO2020197826 - SYSTEMS AND METHODS FOR ESTABLISHING COMMUNICATION LINKS BETWEEN NETWORKS AND DEVICES WITH DIFFERENT ROUTING PROTOCOLS


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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/US2020/022949 035361-1178128
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
16 March 2020 28 March 2019
Applicant
LANDIS+GYR INNOVATIONS, INC.
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)).
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)).
c.
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
a.
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.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     H04L 12/741 (2013.01)i; H04L 29/08 (2006.01)i; H04L 29/06 (2006.01)i; H04W 40/22 (2009.01)i; H04W 40/24 (2009.01)i; H04W 40/32 (2009.01)i; H04W 84/18 (2009.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

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

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
THUBERT P ET AL, "Routing for RPL Leaves; draft-thubert-roll-unaware-leaves-06.txt", No. 6, 19 November 2018 (2018-11-19), page 1-19, ROUTING FOR RPL LEAVES; DRAFT-THUBERT-ROLL-UNAWARE-LEAVES-06.TXT; INTERNET-DRAFT: ROLL, INTERNET ENGINEERING TASK FORCE, IETF; STANDARDWORKINGDRAFT, INTERNET SOCIETY (ISOC) 4, RUE DES FALAISES CH- 120
Retrieved from the Internet:
URL:https://tools.ietf.org/html/draft-thubert-roll-unaware-leaves-06
XP015129957
[retrieved on  2018-11-19]
1,2,7-10,12,14-17,20
Y
the whole document
3-6,11,13,18,19
(2)
Y
THUBERT P ET AL, "An Architecture for IPv6 over the TSCH mode of IEEE 802.15.4; draft-ietf-6tisch-architecture-19.txt", No. 19, 17 December 2018 (2018-12-17), page 1-60, AN ARCHITECTURE FOR IPV6 OVER THE TSCH MODE OF IEEE 802.15.4; DRAFT-IETF-6TISCH-ARCHITECTURE-19.TXT; INTERNET-DRAFT: 6TISCH, INTERNET ENGINEERING TASK FORCE, IETF; STANDARDWORKINGDRAFT, INTERNET SOCIE
Retrieved from the Internet:
URL:https://tools.ietf.org/html/draft-ietf-6tisch-architecture-19
XP015130291
[retrieved on  2018-12-17]
5,6,11,13,19
abstract
3.6.A Multi-Link Subnet Model3.7. Join Process3.8. Registration;page 19 - page 24
4. Architecture Components4.1. 6LoWPAN (and RPL)4.1.1. RPL-Unaware Leaves and 6LoWPAN ND 4.1.2. RPL Root And 6LBR4.2.3. 6top and RPL Objective Function operations;page 24 - page 27
6. Security Considerations;page 28
(3)
Y
Cisco Systems ET AL, "Internet Engineering Task Force (IETF) RPL: IPv6 Routing Protocol for Low-Power and Lossy Networks", 31 March 2012 (2012-03-31),
Retrieved from the Internet:
URL:https://www.researchgate.net/profile/Tanweer_Alam8/post/What_are_the_necessity_of_Routing_protocol_in_Low_power_Lossy_Network/attachment/59d6414079197b807799d47c/AS:434099987980289@1480508910112/download/rfc6550.pdf
XP055654026
[retrieved on  2019-12-18]
3,4,18
abstract
4. Traffic Flows Supported by RPL4.3. Point-to-Point Traffic;page 27
6.3. DODAG Information Object (DIO);page 38
6.4. Destination Advertisement Object (DAO)6.5. Destination Advertisement Object Acknowledgement;page 43 - page 45
6.7.10. Prefix Information;page 59
(4)
A
ROBLES ERICSSON M RICHARDSON SSW P THUBERT CISCO M, "When to use RFC 6553, 6554 and IPv6-in-IPv6; draft-richardson-roll-useofrplinfo-2460bis-01.txt", WHEN TO USE RFC 6553, 6554 AND IPV6-IN-IPV6; DRAFT-RICHARDSON-ROLL-USEOFRPLINFO-2460BIS-01.TXT; INTERNET-DRAFT: ROLL WORKING GROUP, INTERNET ENGINEERING TASK FORCE, IETF; STANDARDWORKINGDRAFT, INTERNET SOCIETY (ISOC) 4, RUE DES FALAISES CH- 1205 GENE,No. 1, 18 July 2016 (2016-07-18), page 1-30,
XP015124411
1-20
5.7. Example of Flow from not-RPL-aware-leaf to Internet;page 13
5.11. Example of Flow from not-RPL-aware-leaf to RPL-aware-leaf;page 16
6.8.Example of Flow from Internet to non-RPL-aware-leaf;page 22
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
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)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
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
"X"
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
"Y"
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
Name and mailing address of the ISA/:
European Patent Office
P.B. 5818, Patentlaan 2, 2280 HV Rijswijk,
Netherlands
Telephone No. (+31-70)340-2040
Facsimile No. (+31-70)340-3016
Date of the actual completion of the international search:
19 May 2020
Date of mailing of the international search report:
29 May 2020
Authorized officer:
Cranley, Nikki
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