Prosecution Insights
Last updated: August 17, 2026
Application No. 19/212,601

CHANNEL STATE INFORMATION SENDING METHOD, CHANNEL STATE INFORMATION RECEIVING METHOD, AND APPARATUS

Non-Final OA §103
Filed
May 19, 2025
Priority
Nov 25, 2022 — CN 202211493654.3 +1 more
Examiner
KASSA, ZEWDU A
Art Unit
Tech Center
Assignee
Huawei Technologies Co., Ltd.
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
1y 1m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allowance Rate
728 granted / 821 resolved
+28.7% vs TC avg
Moderate +5% lift
Without
With
+5.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
15 currently pending
Career history
834
Total Applications
across all art units

Statute-Specific Performance

§101
6.2%
-33.8% vs TC avg
§103
75.5%
+35.5% vs TC avg
§102
10.1%
-29.9% vs TC avg
§112
1.4%
-38.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 821 resolved cases

Office Action

§103
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 § 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. 1. Claims 1-2, 13, 16-17 and 20 are rejected under 35 U.S.C. 103 as being unpatentable over Kang (US 2023/0109788) in view of Mattal (US 2020/0204224). 2. As per claim 1, Kang teaches method for sending channel state information performed by a terminal device, comprising: receiving a reference signal from a network device, wherein the reference signal corresponds to a plurality of reference signal ports (Kang, ¶0009 “… receiving … information … reference signal …”); determining N first port groups based on the plurality of reference signal ports (Kang, ¶0009 “selecting … one reference signal port group set …”), wherein the plurality of reference signal ports comprises reference signal ports in the N first port groups, different first port groups in the N first port groups comprise different reference signal ports, and N is an integer greater than or equal to 1 (Kang, ¶0009 “ … reference signal port group sets … reference signal port group set among the reference signal port group sets”); While Kang discloses determining channel state information of N equivalent ports and sending first channel state information to the network device (Kang, ¶0009 “ … calculating channel state information … reference signal port group sets …”, Mittal teaches determining channel state information of N equivalent ports under a first weight based on the first weight and channel information of the N first port groups, wherein the N first port groups are in one-to-one correspondence with the N equivalent ports (Mittal, Fig. 7 item 708 710 and related text); and wherein the first channel state information is determined based on the channel state information of the N equivalent ports under the first weight (Mittal, Fig. 7 item 708 710 and related text). Therefore, taking the combined teaching of Kang and Mittal as a whole, it would have been obvious to one having ordinary skill in the art at the time of the invention to implement the instant limitation for the benefit of improving the performance of the communication system. 3. Claims 17 and 20 are similarly analyzed as claim 1 for obviousness reason discussed above. 4. As per claim 2, Kang in view of Mittal teaches the method according to claim 1, wherein each reference signal port in the plurality of reference signal ports corresponds to one analog port, and different reference signal ports correspond to different analog ports (Kang, ¶0123. Furthermore, it’s well-known in the art to implement analog ports and/or digital ports depends on signal processing domain). 5. As per claim 13, Kang in view of Mittal teaches the method according to claim 1, wherein the first weight is a first codebook selected by the terminal device from a codebook set (Mattal, ¶0083). 6. As per claim 16, Kang in view of Mittal teaches the method according to claim 1, wherein one of the N equivalent ports corresponds to one digital port, and different equivalent ports correspond to different digital ports (Kang, ¶0123. Furthermore, it’s well-known in the art to implement analog ports and/or digital ports depends on signal processing domain). Allowable Subject Matter 7. Claims 3-12, 14-15 and 18-19 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 Any inquiry concerning this communication or earlier communications from the examiner should be directed to ZEWDU A KASSA whose telephone number is (571)270-5253. The examiner can normally be reached 9-5:30. 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, David Payne can be reached at 5712723024. 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. ZEWDU A. KASSA Examiner Art Unit 2637 /ZEWDU A KASSA/Primary Examiner, Art Unit 2635
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Prosecution Timeline

May 19, 2025
Application Filed
Jul 15, 2026
Non-Final Rejection mailed — §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
89%
Grant Probability
94%
With Interview (+5.1%)
2y 4m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 821 resolved cases by this examiner. Grant probability derived from career allowance rate.

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