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1. (WO2019028851) DETERMINING AN ASSOCIATION BETWEEN DMRS AND PTRS



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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/CN2017/097149 PCT17089CN
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
11 August 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
This International Searching Authority found multiple inventions in this international application, as follows:
[1] The following groups of inventions have been found:
[2] the first invention relates to claims (1,14); the second invention relates to claims (27,37); the third invention relates to claims (47,61).
[4] Claims (1,14) relate to determining a signal-to-interference-plus-noise ratio for a scheduling layer for the remote unit.
[5] Claims (27,37) relate to measuring a signal-to-interference-plus-noise ratio of each layer of a plurality of layers based on the configuration of downlink reference signal ports.
[6] Claims (47,61) relate to determining an associated demodulation reference signal port index within the physical resource block for a phase tracking reference signal.
[7] The three inventions do not have the same or corresponding technical feature. Therefore, they do not have the same or corresponding special technical feature. The claims (1,14), claims (27,37) and claims (47,61) are not so linked as to form a single general inventive concept, and therefore do not satisfy the criteria set out in PCT Rule 13.1, 13.2.
1.
As all required additional search fees were timely paid by the applicant, this international search report covers all searchable claims.
2.
As all searchable claims could be searched without effort justifying additional fees, this Authority did not invite payment of additional fees.
3.
As only some of the required additional search fees were timely paid by the applicant, this international search report covers only those claims for which fees were paid, specifically claims Nos.:
4.
No required additional search fees were timely paid by the applicant. Consequently, this international search report is restricted to the invention first mentioned in the claims; it is covered by claims Nos.:
Remark on Protest
The additional search fees were accompanied by the applicant’s protest and, where applicable, the payment of a protest fee.
The additional search fees were accompanied by the applicant’s protest but the applicable protest fee was not paid within the time limit specified in the invitation.
No protest accompanied the payment of additional search fees.
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

     H04W; 72/00(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):
     H04L; H04Q; 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):
CNPAT,CNKI,WPI,EPODOC,3GPP: SINR, SNIR, SNR, SIR, signal, interference, noise, ratio, schedul+, layer?, reference signal, ??RS, DMRS, PTRS, phase, track+, demodulat+, MCS, modulation, cod+, sheme, TBS, trans+, block, size, swap+, exchang+, codeword?, CW?, UL, uplink, backward, DL, downlink, forward, location, position, bandwidth, ?RB, resource block?, CQI, CSI, channel quality, configur+, set+

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
CN 101820685 A (NEW POSTCOM EQUIPMENT CO.,LTD.) 01 September 2010 (2010-09-01)
1-3,6,9,14-16,19,22
description, paragraphs [0005]-[0016],[0029]-[0038],[0049], claims 1-2,7-8
(2)
A
US 2010128627 A1 (FUJITSU LIMITED) 27 May 2010 (2010-05-27)
1-26
the whole document
(3)
X
US 2014241192 A1 (INDUSTRY-ACADEMIC COOPERATION FOUNDATION,YONSEI UNIVERSITY ET AL.) 28 August 2014 (2014-08-28)
27-31,36-41,46
description, paragraphs [0017]-[0020],[0037]-[0048]
(4)
A
CN 106031217 A (NTT DOCOMO, INC.) 12 October 2016 (2016-10-12)
27-46
the whole document
(5)
A
HUAWEI et al.,, "PTRS for CP-OFDM,", 3GPP TSG RAN WG1 Ad Hoc Meeting R1-1709939,,30 June 2017 (2017-06-30),
47-74
sections 2,3,6
(6)
A
WO 2015119559 A1 (TELEFONAKTIEBOLAGET L M ERICSSONPUBL) 13 August 2015 (2015-08-13)
47-74
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)
CN 101820685 A
01 September 2010
None
US 2010128627 A1
27 May 2010
JP WO2009019759 A1
KR 20100025575 A
WO 2009019759 A1
EP 2187539 A1
CN 101743765 A
28 October 2010
09 March 2010
12 February 2009
19 May 2010
16 June 2010
US 2014241192 A1
28 August 2014
KR 20140107866 A
05 September 2014
CN 106031217 A
12 October 2016
WO 2015125775 A1
EP 3110199 A1
US 2017013631 A1
JP 2015154463 A
NZ 723019 A
27 August 2015
28 December 2016
12 January 2017
24 August 2015
22 December 2017
WO 2015119559 A1
13 August 2015
EP 3105875 A1
US 2015358132 A1
21 December 2016
10 December 2015
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:
10 April 2018
Date of mailing of the international search report:
07 May 2018
Authorized officer:
ZHANG,Feng
Telephone No. (86-10)53961628
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