INTERNATIONAL SEARCH REPORT
`
`International application No.
`PCT/SG2019/050530
`
`A. CLASSIFICATION OF SUBJECT MATTER
`
`HO04W 72/04 (2009.01)
`
`HO04W 74/08 (2009.01) HO4L 5/00 (2006.07)
`
`According to International Patent Classification (IPC)
`B.
`FIELDS SEARCHED
`
`Minimum documentation searched(classification system followed by classification symbols)
`HO4W, HO4L
`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)
`
`
`
`Cc. DOCUMENTS CONSIDERED TO BE RELEVANT
`
`x
`
`x
`
`A
`
`Citation of document, with indication, where appropriate, of the relevant passages
`
`PATILA., "Resolution for CIDs related to random access- Part 2", doc.: IEEE
`802.11-18/1812r2. 12 November 2018
`
`[Retrieved on 2019-12-13 from https://mentor.ieee.org/802.1 1/den/18/1 1-18-
`1812-02-00ax-resolution-for-cids-related-to-random-access-part-2.docx ]
`The whole document
`
`US 2018/0199271 Ai (VIGER P. ET AL.) 12 July 2018
`Paras. [0003], [0116], [0155]-[0157], [0285]
`
`WO 2018/124725 A1 (WILUS INSTITUTE OF STANDARDS AND
`TECHNOLOGYINC. & SK TELECOM CO., LTD.) 5 July 2018
`& US 2019/0313466 A1
`
`
`
`I Further documents are listed in the continuation of Box C. KK] See patent family annex.
`
`*Special categories of cited documents:
`“A” documentdefining the general state of the art which is not
`consideredto be of particular relevance
`.
`.
`.
`.
`.
`oo.
`“D’ documentcited by the applicantin the international application
`“E” earlier application or patent but published on orafter the
`internationalfiling date
`“L” document which may throw doubts on priority claim(s) or
`whichis cited to establish the publication date of another
`citation or other special reason (as specified)
`“O” documentreferring to an oral disclosure, use, exhibition or
`other means
`
`“P” document published prior to the internationalfiling date but
`later than the priority date claimed
`
`“T” later document published after the international filing date or
`priority date and notin conflict with the application but cited to
`understand the principle or theory underlying the invention
`” documentof particular relevance; the claimed invention
`cannot be considered novel or cannot be considered to
`involve an inventive step when the documentis taken alone
`documentof 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 memberof the same patent family
`
`Date of the actual completion of the international search
`
`Date of mailing of the international search report
`
`FamPat, IEEE, CNKI: multiple band, multiple link, multiple frequency, multiple channel, multi-band, dual-band, tri-band,
`
`multi-frequency, multi-channel, dual-frequency, dual-channel, #3, 27?, 240%, SUR, SAI, SHE, SHR, KUM
`
`
`
`
`a, WU, WHE, =a, =MZ, =H, SH, MO, =F, trigger frame, TF, Aki, resource unit, RU, BYRAAT,
`
`random access, RA, PRACH, S&#LBZA, Back-off counter, BANLIFGBit+2, BANUAct2, OBO, contention window,
`
`
`& i, CW and related search terms
`
`The whole document of the patent family member
`Lu Liru (Dr)
`
`
`
`
`
`13/12/2019 (day/month/year)|08/01/2020 (day/month/year)
`
`Nameand mailing address of the ISA/SG
`
`Authorized officer
`
`om
`Intellectual Property Office of Singapore
`[OS 1 Paya Lebar Link, #11-03
`INTELLECTUALPROPERTY PLQ 1, Paya Lebar Quarter
`Singapore 408533
`
`Email: pct@ipos.gov.sg
`
`IPOS Customer Service Tel. No.: (+65) 6339 8616
`
`Form PCT/ISA/210 (second sheet) (July 2019)
`
`

`

`Category*
`
`Citation of document, with indication, where appropriate, of the relevant passages
`
`Relevant to claim No.
`
`A
`
`INTERNATIONAL SEARCH REPORT
`
`International application No.
`PCT/SG2019/050530
`
`C (Continuation).
`
`DOCUMENTS CONSIDERED TO BE RELEVANT
`
`CN 107105514 A (HUAWEI! TECHNOLOGIES CO., LTD) 29 August 2017
`The whole documentof the original non-English language document (a machine
`translation is enclosed only for your reference)
`
`
`
`Form PCT/ISA/210 (continuation of second sheet (1)) (July 2019)
`
`

`

`Note. This Annex lists known patent family members relating to the patent documents cited in this International Search
`Report. This Authority is in no way liable for these particulars which are merely given for the purpose of information.
`
`NONE Po
`
`INTERNATIONAL SEARCH REPORT
`Information on patent family members
`
`International application No.
`PCT/SG2019/050530
`
`Patent family
`member(s)
`GB 2558621 A
`GB 2571005 A
`
`EP 3565365 A1
`KR 20190092452 A
`US 2019/0313466 A1
`CN 110115093 A
`
`Publication date
`
`18/07/2018
`14/08/2019
`
`06/11/2019
`07/08/2019
`10/10/2019
`09/08/2019
`
`Patent document
`cited in search report
`US 2018/0199271 A1
`
`Publication date
`
`12/07/2018
`
`WO 2018/124725 A1
`
`05/07/2018
`
`CN 107105514 A
`
`29/08/2017
`
`Form PCT/ISA/210 (patent family annex) (July 2019)
`
`