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International application No. Applicant's or agent's file reference
PCT/KR2017/000948 SP16371-PCT
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
26 January 2017 03 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.     6    
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.


     H04B 7/0408 (2017.01)i; H04B 7/0404 (2017.01)i; H04W 74/00 (2009.01)i; H04W 74/08 (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 models
Japanese 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: preamble sequence, differential beamforming transmitting mode, random access response, beam indication information, terminal beam direction, maximum transmitting energy, angular deviation, adjust, sum beam, differential beam, beam width, random access channel, sequence length


Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
US 2010-0123625 A1 (G. PATRICK MARTIN et al.) 20 May 2010 See paragraphs [0075]-[0118]; claims 1-3; and figure 9.
WO 2015-147717 A1 (TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)) 1 October 2015 See page 9, line 3 - page 17, line 25; and claims 1, 2, 7.
US 2016-0029358 A1 (JILEI HOU et al.) 28 January 2016 See paragraphs [0025]-[0038]; claim 1; and figures 1-6.
US 2014-0010178 A1 (SAMSUNG ELECTRONICS CO., LTD.) 9 January 2014 See paragraphs [0044]-[0084]; claims 1, 2; and figures 3A-7.
US 2006-0114158 A1 (BING A. CHIANG et al.) 1 June 2006 See paragraphs [0024]-[0051]; claim 18; and figures 2-8.
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 2010-0123625 A1
20 May 2010
EP 2366207 A2
US 7969358 B2
WO 2010-059690 A2
WO 2010-059690 A3
21 September 2011
28 June 2011
27 May 2010
15 July 2010
WO 2015-147717 A1
01 October 2015
AP 201609500 D0
AU 2014-388444 A1
CA 2943697 A1
EP 3123802 A1
KR 10-2016-0136385 A
PH 12016501858 A1
SG 11201607912 A
US 2016-0157267 A1
31 October 2016
13 October 2016
01 October 2015
01 February 2017
29 November 2016
19 December 2016
28 October 2016
02 June 2016
US 2016-0029358 A1
28 January 2016
CN 105379357 A
EP 2974457 A4
EP 2974457 A1
JP 2016-510197 A
KR 10-2015-0132200 A
WO 2014-139174 A1
02 March 2016
23 November 2016
20 January 2016
04 April 2016
25 November 2015
18 September 2014
US 2014-0010178 A1
09 January 2014
AU 2013-285774 A1
AU 2013-285774 B2
CN 104412519 A
EP 2870703 A4
EP 2870703 A1
JP 2015-526015 A
JP 06001171 B2
KR 10-2014-0004513 A
RU 2603969 C2
RU 2014153522 A
WO 2014-007546 A1
15 January 2015
07 July 2016
11 March 2015
16 March 2016
13 May 2015
07 September 2015
05 October 2016
13 January 2014
10 December 2016
20 July 2016
09 January 2014
US 2006-0114158 A1
01 June 2006
TW 200733480 A
TW 200713700 A
TW 200625721 A
TW I292235 B
US 2008-0303718 A1
US 7705779 B2
US 6992622 B1
US 7427953 B2
WO 2006-044579 A2
WO 2006-044579 A3
01 September 2007
01 April 2007
16 July 2006
01 January 2008
11 December 2008
27 April 2010
31 January 2006
23 September 2008
27 April 2006
17 August 2006
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:
08 May 2017
Date of mailing of the international search report:
08 May 2017
Authorized officer:
KANG, Hee Gok
Telephone No. +82-42-481-8264
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