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International application No. Applicant's or agent's file reference
PCT/CN2018/107018 85529125PCT3
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
21 September 2018 28 September 2017
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.     4    
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.


     H04L; 9/14(2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
     H04L; H04W
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):
CPRSABS;CNTXT,CNKI,VEN,3GPP: security activation, session granularity, security key, signaling radio bearer, SRB, data radio bearer, DRB, security parameter, securitymodecommand, rrcconnectionreconfiguration, PDU session


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
Huawei,HiSilicon, "Security procedure for SCG RRC message via MCG SRB and SCG SRB", 3GPP TSG RAN WG2 Meeting #98 R2-1705146,06 May 2017 (2017-05-06),
section 2
CN 102487507 A (ZTE CORP) 06 June 2012 (2012-06-06)
all documents
CN 104956644 A (ERICSSON CO LTD) 30 September 2015 (2015-09-30)
all documents
"3rd Generation Partnership Project;Technical Specification Group Services and System Aspects;Study on the security aspects of the next generation system(Release 14)", 3GPP TR 33.899 V1.3.0,21 August 2017 (2017-08-21),
"3rd Generation Partnership Project;Technical Specification Group Services and System Aspects;3GPP System Architecture Evolution (SAE);Security architecture(Release 14)", 3GPP TS 33.401 V14.3.0,14 June 2017 (2017-06-14),
sections 7-9
Special categories of cited documents:
document defining the general state of the art which is not considered to be of particular relevance
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
CN 102487507 A
06 June 2012
CN 102487507 B
US 9055442 B2
US 2012315878 A1
WO 2012071845 A1
EP 2528369 A4
EP 2528369 A1
20 January 2016
09 June 2015
13 December 2012
07 June 2012
15 January 2014
28 November 2012
CN 104956644 A
30 September 2015
JP 2017063422 A
KR 101862299 B1
KR 20150114978 A
EP 3018850 A1
EP 3261374 A1
ES 2598378 T3
ES 2637320 T3
AU 2014213034 A1
JP 6219972 B2
HK 1210881 A1
NZ 709755 A
JP 2016509804 A
JP 6409037 B2
ZA 201504943 B
EP 2951975 A1
SG 11201505261R A
RU 2628321 C2
DK 3018850 T3
EP 3018850 B1
CN 107257353 A
IL 239807 D0
WO 2014120077 A1
BR 112015017515 A2
HU E035736 T2
MA 38355 A1
CA 2899721 A1
CN 107809443 A
AU 2014213034 B2
RU 2015136548 A
CL 2015002132 A1
CA 2899721 C
US 9301134 B2
AU 2016256760 A1
EP 2951975 B1
PT 2951975 T
MX 351237 B
CN 104956644 B
US 2016174070 A1
DK 2951975 T3
IL 239807 A
HU E031467 T2
ZA 201508927 B
KR 20180059570 A
US 2015092942 A1
MX 342101 B
CN 107809442 A
MX 2015009101 A
AU 2016256760 B2
MA 38355 B1
30 March 2017
29 May 2018
13 October 2015
11 May 2016
27 December 2017
27 January 2017
11 October 2017
06 August 2015
25 October 2017
06 May 2016
28 October 2016
31 March 2016
17 October 2018
21 December 2016
09 December 2015
28 August 2015
15 August 2017
10 July 2017
10 May 2017
17 October 2017
31 August 2015
07 August 2014
11 July 2017
28 May 2018
29 January 2016
07 August 2014
16 March 2018
08 December 2016
07 March 2017
29 January 2016
13 June 2017
29 March 2016
08 December 2016
20 July 2016
23 September 2016
06 October 2017
16 January 2018
16 June 2016
24 October 2016
28 June 2018
28 July 2017
30 August 2017
04 June 2018
02 April 2015
13 September 2016
16 March 2018
05 October 2015
05 July 2018
31 August 2016
Name and mailing address of the ISA/:
6, Xitucheng Rd., Jimen Bridge, Haidian District, Beijing 100088
Facsimile No. (86-10)62019451
Date of the actual completion of the international search:
29 November 2018
Date of mailing of the international search report:
10 December 2018
Authorized officer:
Telephone No. 86-(010)-62411223
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