Prosecution Insights
Last updated: October 01, 2026
Application No. 19/050,657

REFERENCE SIGNAL PORT INDICATION METHOD AND APPARATUS

Non-Final OA §101§102
Filed
Feb 11, 2025
Priority
Aug 12, 2022 — CN 202210970471.X +1 more
Examiner
HUANG, DAVID S
Art Unit
2631
Tech Center
2600 — Communications
Assignee
Huawei Technologies Co., Ltd.
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
9m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
617 granted / 710 resolved
+24.9% vs TC avg
Strong +15% interview lift
Without
With
+15.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
15 currently pending
Career history
727
Total Applications
across all art units

Statute-Specific Performance

§101
6.7%
-33.3% vs TC avg
§103
38.6%
-1.4% vs TC avg
§102
18.7%
-21.3% vs TC avg
§112
22.7%
-17.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 710 resolved cases

Office Action

§101 §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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The references listed in the Information Disclosure Statement(s) filed on 3/18/2025 and 11/24/2025 have been considered by the examiner (see attached PTO-1449 form or PTO/SB/08A and 08B forms). Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefore, subject to the conditions and requirements of this title. Claims 1-20 are rejected under 35 U.S.C. 101 because the claimed invention is directed to abstract idea without significantly more. The claim(s) recite(s) “determining a plurality of target port indices based on the row index information, the correspondence relationship and the indication” which is a mental process (e.g. making a determination based on received information). This judicial exception is not integrated into a practical application because the determined target port indices are not used in any meaningful way for improvement or for a particular machine. The other functional limitations merely provide a general linking to a particular technological environment (in this case, transceivers receiving information related to DMRS port indices). The claim(s) does/do not include additional elements that are sufficient to amount to significantly more than the judicial exception because the additional steps/functions of “receiving row index information,” and “receiving an indication” are considered as data gathering steps that are well-understood, routine, conventional activity are not indicative of an inventive concept (i.e. not “significantly more”). 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. Claim(s) 1, 10 and 19 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Shin et al. (US 2019/0068308, hereinafter “Shin” – cited in an IDS). Regarding claims 1, 10 and 19 are directed to a first communication apparatus comprising: a transceiver (Figs. 14-15, transmitter and receiver, UE/gNB); and at least one processor configured with processor-executable instructions (processor 1802, 1903, Figs. 14-15) to perform operations comprising: receiving row index information in a correspondence relationship from a second communication apparatus (para. 0056-70, Tables 2-1 and 2-2, each row of the tables corresponds a row value; tables include information sent to the UE by downlink control information DCI), wherein the correspondence relationship indicates an association relationship between a row index and a plurality of port indices, and the plurality of port indices indicate demodulation reference signal (DMRS) port indices (relationship inherent in tables which map index values to port numbers; see also Table 12, page 12); receiving an indication from the second communication apparatus, wherein the indication indicates that the plurality of port indices are associated with two codewords (signalling DMRS information, including number layers and port numbers, para. 0060 and 0063-0070; number of layers associated with 2 codewords, see para. 0175 and 0190); and determining a plurality of target port indices based on the row index information, the correspondence relationship, and the indication (Fig. 9A, UE receives DMRS information, including port numbers, step i00). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Hao et al. (US 2021/0297121) discloses UE and base stations using row index information to convey DMRS configuration. Park et al. (US 2020/0304232) discloses a UE receiving row index information indicating which ports the UE is to expect transmissions from. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DAVID S HUANG whose telephone number is (571)270-1798. The examiner can normally be reached Monday - Friday, 9:00 a.m. - 5:00 p.m., EST. 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, Hannah Wang can be reached at (571) 272-9018. 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. /David S Huang/Primary Examiner, Art Unit 2631 8/22/2026
Read full office action

Prosecution Timeline

Feb 11, 2025
Application Filed
Aug 26, 2026
Non-Final Rejection mailed — §101, §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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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
87%
Grant Probability
99%
With Interview (+15.2%)
2y 5m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 710 resolved cases by this examiner. Grant probability derived from career allowance rate.

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