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International application No. Applicant's or agent's file reference
PCT/KR2017/001139 P23042-PCT
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
02 February 2017 02 February 2016
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.     5    
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 60/04 (2009.01)i; H04W 8/02 (2009.01)i; H04W 12/10 (2009.01)i
According to International Patent Classification (IPC) or to both national classification and IPC


Minimum documentation searched (classification system followed by classification symbols):
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Korean utility models and applications for utility modelsJapanese utility models and applications for utility models
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
eKOMPASS(KIPO internal) & Keywords: public land mobile network (PLMN), registration request message, reject cause message, accept message, reset, attempt counter, and re-attempt.


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2012-0178449 A1 (CHING-YU LIAO) 12 July 2012 See paragraphs [0025]-[0036]; and claims 1-2.
US 2005-0037753 A1 (NIELS, PETER SKOV ANDERSEN et al.) 17 February 2005 See paragraphs [0017]-[0019]; claims 1-8; and figure 2.
US 2015-0140998 A1 (LG ELECTRONICS INC.) 21 May 2015 See paragraph [0086]; claim 1; and figure 4(a).
US 2007-0298801 A1 (YU-SHIN KIM et al.) 27 December 2007 See paragraphs [0060]-[0061]; claim 1; and figure 6A.
US 2013-0203411 A1 (TSUNG-YO CHENG) 08 August 2013 See paragraphs [0013]-[0032]; and claim 1.
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
US 2012-0178449 A1
12 July 2012
CN 102595637 A
EP 2475213 A2
EP 2475213 A3
JP 05681263 B2
JP 2012-147436 A
JP 2014-027694 A
KR 10-1245032 B1
KR 10-2012-0081572 A
TW 201233224 A
TW I451796 B
18 July 2012
11 July 2012
08 August 2012
04 March 2015
02 August 2012
06 February 2014
18 March 2013
19 July 2012
01 August 2012
01 September 2014
US 2005-0037753 A1
17 February 2005
WO 2005-020443 A2
WO 2005-020443 A3
03 March 2005
08 November 2007
US 2015-0140998 A1
21 May 2015
CN 104081826 A
EP 2827645 A1
EP 2827645 A4
JP 2015-505187 A
JP 5998228 B2
KR 10-1542414 B1
KR 10-2014-0097324 A
US 2014-355417 A1
US 2016-135101 A1
US 8934334 B2
US 9271172 B2
WO 2013-137698 A1
01 October 2014
21 January 2015
23 December 2015
16 February 2015
28 September 2016
07 August 2015
06 August 2014
04 December 2014
12 May 2016
13 January 2015
23 February 2016
19 September 2013
US 2007-0298801 A1
27 December 2007
KR 10-0765183 B1
US 8630641 B2
12 October 2007
14 January 2014
US 2013-0203411 A1
08 August 2013
CN 103249119 A
EP 2624642 A1
US 8706111 B2
14 August 2013
07 August 2013
22 April 2014
Name and mailing address of the ISA/:
Korean Intellectual Property Office
189 Cheongsa-ro, Seo-gu, Daejeon Metropolitan City, 302-701
Republic of Korea
Facsimile No. +82-42-481-8578
Date of the actual completion of the international search:
12 May 2017
Date of mailing of the international search report:
15 May 2017
Authorized officer:
LEE, Seoung Young
Telephone No. +82-42-481-3535
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