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1. (WO2019000182) DEMODULATION REFERENCE SIGNAL CONFIGURATION



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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/CN2017/090042 PCT17070CN
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
26 June 2017
Applicant
Motorola Mobility LLC et al
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 filed or furnished:
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; 29/06(2006.01)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):
     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):
CNTXT;CPRSABS;CNABS;CNKI;DWPI;VEN:physical downlink shared channel, PDSCH,demodulation reference signal, DMRS,configur+, frequency domain, time domain, port map+

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
WO 2017050153 A1 (SHARP KK ET AL.) 30 March 2017 (2017-03-30)
1-92
description, page 3, line 4 to page 6, line 11, figures 1-4
(2)
A
CN 103259635 A (CHINA ACAD TELECOM TECHNOLOGY MII) 21 August 2013 (2013-08-21)
1-92
the whole document
(3)
A
WO 2014149062 A1 (HITACHI LTD ET AL.) 25 September 2014 (2014-09-25)
1-92
the whole document
(4)
A
"PDSCH starting symbol and PDSCH RE mapping", 3GPP TSG RAN WG1 Meeting #72 R1-130529,01 February 2013 (2013-02-01),
1-92
the whole document
(5)
A
"DCI signalling in DCI format 2D and fallback operation in TM10", 3GPP TSG RAN WG1 Meeting #71 R1-125142,16 November 2012 (2012-11-16),
1-92
the whole document
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"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

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
WO 2017050153 A1
30 March 2017
CN 106559194 A
05 April 2017
CN 103259635 A
21 August 2013
CN 103259635 B
08 June 2016
WO 2014149062 A1
25 September 2014
None
Name and mailing address of the ISA/:
STATE INTELLECTUAL PROPERTY OFFICE OF THE P.R.CHINA
6, Xitucheng Rd., Jimen Bridge, Haidian District, Beijing 100088
China
Facsimile No. (86-10)62019451
Date of the actual completion of the international search:
22 February 2018
Date of mailing of the international search report:
15 March 2018
Authorized officer:
LIU,Yongzhe
Telephone No. (86-10)62412024
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