Prosecution Insights
Last updated: April 19, 2026
Application No. 18/808,464

SYSTEMS AND METHODS RELATED TO INDEX MODULATION FOR WIRELESS LOCAL AREA NETWORK

Non-Final OA §102
Filed
Aug 19, 2024
Examiner
AGHDAM, FRESHTEH N
Art Unit
2632
Tech Center
2600 — Communications
Assignee
Huawei Technologies Co., Ltd.
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
86%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
546 granted / 660 resolved
+20.7% vs TC avg
Minimal +3% lift
Without
With
+3.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
10 currently pending
Career history
670
Total Applications
across all art units

Statute-Specific Performance

§101
7.7%
-32.3% vs TC avg
§103
48.7%
+8.7% vs TC avg
§102
22.6%
-17.4% vs TC avg
§112
12.5%
-27.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 660 resolved cases

Office Action

§102
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 1, 6, 8, 17, 24, and 26 is/are rejected under 35 U.S.C. 102(a)(1) and/or 102(a)(2) as being anticipated by Wu et al. (hereinafter referred to as “Wu”, US 12,355,570). As to claims 1 and 17, Wu teaches a method and/or an apparatus, in a device of an IEEE 802.11 transmitter, comprising: parsing a bit sequence containing bits for transmission into a first sequence and a second sequence (Fig. 10, RU/frequency subblock round-robin parser, column 18, lines 61-67, column 19, lines 1-3); selecting a plurality of tones belonging to a plurality of IEEE 802.11 (column 6, lines 39-66) distributed resource units (DRUs), the selecting being based on the first sequence (i.e., tone mapping based on parsed RU/frequency sub-block, Fig. 10, tone mapper 1 and tone mapper 2, column 19, lines 32-51, column 19, lines 66-67, column 20, lines 1-3 and 30-35); and generating and transmitting an IEEE 802.11 frame comprising a group of modulation symbols each of which is generated based on a portion of the second sequence, the group of modulation symbols being transmitted using the selected plurality of tones (abstract, column 22, lines 48-53). As to claims 6 and 24, Wu further teaches at a time of transmitting the group of modulation symbols using the selected plurality of tones: refraining from transmitting on all tones belonging to the plurality of IEEE 802.11 distributed resource units (i.e., by transmitting using fewer tones than the total number of predefined tones such as 242 tones, which is according to IEEE 802.11 distributed resource units protocol(s), abstract, column 11, lines 46-55, column 6, lines 39-66). As to claims 8 and 26, Wu further teaches each member of the group of modulation symbols is a Quadrature-Amplitude Modulation (QAM) symbol mapped to one of the selected plurality of tones (column 17, tables 7 and 8, column 18, lines 1-12). Allowable Subject Matter Claims 2-5, 7, 18, 21-23, and 25 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Hu et al., US 11,811,526, Figs. 2-16 Handte et al., US 2025/0266942, Figs. 1-6 Zhang et al., US 2015/0349995, abstract, Figs. 5-6 Yang et al., US 2019/0141717, Figs. 6-7 Abraham et al., US 9,281,924, Figs. 4-6 Cao et al., US 2022/0416988, Figs. 2-16 Any inquiry concerning this communication or earlier communications from the examiner should be directed to FRESHTEH N AGHDAM whose telephone number is (571)272-6037. The examiner can normally be reached Monday-Friday 10:30-7:00 ET. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Chieh M Fan can be reached at 571-272-3042. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /FRESHTEH N AGHDAM/Primary Examiner, Art Unit 2632 2/7/2026
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Prosecution Timeline

Aug 19, 2024
Application Filed
Feb 07, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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COMPOSITE RECONFIGURABLE INTELLIGENT SURFACE SYSTEM FOR REAL TIME BEAM STEERING AND METHOD THEREOF
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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
83%
Grant Probability
86%
With Interview (+3.3%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 660 resolved cases by this examiner. Grant probability derived from career allow rate.

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