Prosecution Insights
Last updated: August 17, 2026
Application No. 18/853,538

A METHOD AND APPARATUS FOR CSI COMPRESSION IN TIME DOMAIN

Non-Final OA §102§103
Filed
Oct 02, 2024
Priority
Apr 21, 2022 — nonprovisional of PCTEP2022060517
Examiner
LEE, CHI HO A
Art Unit
2414
Tech Center
2400 — Computer Networks
Assignee
Nokia Corporation
OA Round
1 (Non-Final)
92%
Grant Probability
Favorable
1-2
OA Rounds
5m
Est. Remaining
97%
With Interview

Examiner Intelligence

Grants 92% — above average
92%
Career Allowance Rate
1269 granted / 1378 resolved
+34.1% vs TC avg
Minimal +5% lift
Without
With
+4.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
38 currently pending
Career history
1408
Total Applications
across all art units

Statute-Specific Performance

§101
4.6%
-35.4% vs TC avg
§103
43.6%
+3.6% vs TC avg
§102
21.9%
-18.1% vs TC avg
§112
14.6%
-25.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1378 resolved cases

Office Action

§102 §103
DETAILED ACTION 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 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)(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. Claims 28-32, 34-38 and 40-44 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by ABDELGHAFFAR et al PG PUB 2025/0203427. Re Claims 28, 34 and 40, ABDELGHAFFAR et al teaches in figure 7A, a UE 120 (an apparatus comprising a memory, code and processor) receiving a Doppler measurement report configuration 702 from network entity 701 [0095] wherein based on the configuration, the UE obtains Doppler domain information by measuring time correlation (time variations) of a channel from TRS [0085 0086]; the UE reporting the Doppler domain information and CSI report associated with CSI-RS [0087] and precoder matrix based on the CSI [0121]. Re Claims 29, 35, 41, ABDELGHAFFAR et al teaches in figure 7A, the UE 120 receiving a Doppler measurement report configuration 702 ( first configuration) from network entity 701 [0095] to report the time correlation (time variations) of a channel calculated from the TRS [0085 0086]. Re Claims 30, 36, 42, ABDELGHAFFAR et al teaches the Doppler domain measurements in a subband fashion [0121]. Re Claims 31, 37, 43, ABDELGHAFFAR et al teaches the doppler measurement report associated with DFT based codebook components [0087 0121]. Re Claims 32, 38, 44. ABDELGHAFFAR et al teaches the TRS report and CSI report are reported separately [0151]. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 33, 39 and 45 are rejected under 35 U.S.C. 103 as being unpatentable over ABDELGHAFFAR et al PG PUB 2025/0203427 in view of RAMIREDDY et al PG PUB 2022/0029676. Re Claims 33, 39, 45, ABDELGHAFFAR et al teaches the CSI reporting associated with a precoders for a layer across PMI subbands [0096 0121]. ABDELGHAFFAR et al fails to explicitly teach “…reported for each layer of PMI reported in the CSI.”. However, RAMIREDDY et al teaches based on a report configuration, measurements on CSI-RS can be reported for each layer of PMI [0268] to that SNR at each data streams associated with the layers can be calculated. One skilled in the art would have been motivated to have calculated the SNR/measurements at each layer of the PMI reported in the CSI for selecting the precoding matrix with high SNR. Therefore, it would have been obvious to one skilled in the art to have combined the teachings. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANDREW LEE whose telephone number is (571)272-3130. The examiner can normally be reached Monday-Friday 8:30AM-5PM 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, KASSIM KHALAD can be reached at 5712703770. 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. /ANDREW LEE/ Primary Examiner, Art Unit 2475
Read full office action

Prosecution Timeline

Oct 02, 2024
Application Filed
Jul 16, 2026
Non-Final Rejection mailed — §102, §103 (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
92%
Grant Probability
97%
With Interview (+4.6%)
2y 3m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1378 resolved cases by this examiner. Grant probability derived from career allowance rate.

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