Prosecution Insights
Last updated: April 19, 2026
Application No. 18/541,050

COMMUNICATION METHOD AND APPARATUS

Non-Final OA §112
Filed
Dec 15, 2023
Examiner
MILLER, SHAWN D
Art Unit
2412
Tech Center
2400 — Computer Networks
Assignee
Huawei Technologies Co., Ltd.
OA Round
1 (Non-Final)
96%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants 96% — above average
96%
Career Allow Rate
217 granted / 226 resolved
+38.0% vs TC avg
Moderate +6% lift
Without
With
+5.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
20 currently pending
Career history
246
Total Applications
across all art units

Statute-Specific Performance

§101
2.7%
-37.3% vs TC avg
§103
61.0%
+21.0% vs TC avg
§102
16.5%
-23.5% vs TC avg
§112
10.1%
-29.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 226 resolved cases

Office Action

§112
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 § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-20 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 1 recites the limitation starting on line 2: “mapping a first sequence to M subcarrier blocks used to transmit a reference signal” and subsequently “sending a mapped signal on each of the M subcarrier blocks.” It is unclear whether the claimed reference signal refers to the specific mapped signal sent on the M subcarrier blocks, or whether it is an intended use of the subcarrier blocks in general. In addition, Claim 1 recites the following limitation starting on line 4: "the first sequence includes a plurality of signals, a plurality of signals mapped to a plurality of consecutive subcarriers at a rear location in the mth subcarrier block are the same as a plurality of signals mapped to a plurality of consecutive subcarriers at a front location in a (mod(m, M)+1)th subcarrier block" in lines 4-7. There is insufficient antecedent basis for this/these limitation(s). It is unclear whether the second “a plurality of signals” is the same and/or a subset of the first sequence that includes a plurality of signals. It is unclear which of the “a plurality of signals” is sent during the final step of Claim 1. If each of the plurality of signals is the same, subsequent recitations should be amended to recite “the plurality of signals mapped to a plurality of consecutive subcarriers at a rear location….” Alternatively, the claim could be amended to recite “the first sequence includes a first plurality of signals, a second plurality of signals mapped to…” which would properly distinguish the plurality of signals. Finally, there are two recitations of “a plurality of consecutive subcarriers” that are not clearly distinguished from one another. Proposed Amendment Below is a proposed amendment to Claim 1 that would correct the issue(s) identified above: 1. (Currently Amended) A communication method, comprising: mapping a first sequence to M subcarrier blocks used to transmit a reference signal, wherein an mth subcarrier block includes Qm subcarriers, Qm is an integer greater than or equal to 2, m is all of the integers from 1 to M, M is an integer greater than or equal to 2, the first sequence includes a first plurality of signals, a second plurality of signals mapped to a second plurality of consecutive subcarriers at a rear location in the mth subcarrier block are the same as the first plurality of signals mapped to a first plurality of consecutive subcarriers at a front location in a (mod(m, M)+1)th subcarrier block, and mod(m, M) is a remainder obtained by dividing m by M; and sending the reference signal comprising at least one of the mapped first plurality of signals or the mapped second plurality of signals on each of the corresponding M subcarrier blocks. As there are multiple possible interpretations, examiner includes this proposed amendment as a non-binding example. It is acceptable for applicant to submit a different amendment, so long as it corrects the indefiniteness/antecedent basis issues identified above. Applicant is encouraged to reach out to examiner before filing an answer if they are uncertain whether an alternative amendment would overcome this/these issue(s). Independent Claims 11 and 12 each recite at least the same indefinite subject matter as Claim 1 and are rejected for at least the same reason(s) above. Dependent Claims 2-10 and 13-20 inherit the indefiniteness of their respective parent claims, and are rejected for at least the same reason(s) above. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. The closest prior art found to the instant invention is Su (US 2023/0180165 A1) which teaches at [0227] mapping redundant phase tracking reference signals to subcarriers and subsequently transmitting the mapped signals. However, Su does not teach that there is a redundant signal transmitted at the mod(m, M+1)th subcarrier, nor does it teach that an mth subcarrier block includes Qm subcarriers. Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHAWN D MILLER whose telephone number is (571)272-8599. The examiner can normally be reached M-TR 8-5. 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, Charles C Jiang can be reached at (571) 270-7191. 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. /SHAWN D MILLER/Primary Examiner, Art Unit 2412
Read full office action

Prosecution Timeline

Dec 15, 2023
Application Filed
Jan 05, 2024
Response after Non-Final Action
Feb 18, 2026
Non-Final Rejection — §112 (current)

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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
96%
Grant Probability
99%
With Interview (+5.8%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 226 resolved cases by this examiner. Grant probability derived from career allow rate.

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