Prosecution Insights
Last updated: April 19, 2026
Application No. 18/832,060

UE Behavior Relating to PSI-Based Packet Discarding

Non-Final OA §102
Filed
Jul 22, 2024
Examiner
LAZARO, DAVID R
Art Unit
2455
Tech Center
2400 — Computer Networks
Assignee
Apple Inc.
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
90%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allow Rate
660 granted / 759 resolved
+29.0% vs TC avg
Minimal +3% lift
Without
With
+3.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
12 currently pending
Career history
771
Total Applications
across all art units

Statute-Specific Performance

§101
10.7%
-29.3% vs TC avg
§103
33.8%
-6.2% vs TC avg
§102
25.9%
-14.1% vs TC avg
§112
12.1%
-27.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 759 resolved cases

Office Action

§102
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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 7/22/24 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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)(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) 1-12 and 15-20 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by US 2025/0374122 by Yi et al. (Yi). With respect to claim 1, Yi teaches a method, comprising: processing a subset of protocol data units (PDUs) of a first PDU set; (Paragraph 66-71, 135-136 – processing of PDU sets includes processing of subsets of the set in relation to determinations such as upper limit value of a proportion of PDU Sets that have been processed and other criteria such as those related to delay and integrated indications which can correspond to a measure window over a period of time and different granularities). receiving an indication to activate a PDU set importance (PSI)-based discarding mechanism; (Paragraph 77-78, 88-92 – indication may be based on configuration information such as through RRC messaging, Paragraph 115 – indication may be a response to detection of congestion or factors such as a transmitting side buffer, latency, and a PDU Set content criterion Paragraphs 166-179 – indication such as RRC signal indicates activation of PDU set discarding) determining whether specified conditional criteria are met; (Criteria can include: Paragraph 77-84 – discard timer criteria, Paragraph 140-145 – pdu set content criterion; Paragraph 172-183 – importance value criteria) in response to determining that the specified conditional criteria are met, processing the remaining PDUs of the first PDU set without applying the PSI-based discarding mechanism; and (Paragraphs 166-185 – following an example criteria of Importance value, if the importance value of the currently processed PUD Set is higher than the signaled Importance Value, discarding will not be applied) in response to determining that the specified conditional criteria have not met, processing the remaining PDUs of the first PDU set according to the PSI-based discarding mechanism. (Paragraphs 166-185 – following an example criteria of Importance value, if the importance value of the currently processed PUD Set is equal or lower than the signaled Importance Value, discarding will be applied to all corresponding PDUs) With respect to claim 2, Yi teaches the method of claim 1, further comprising: after processing the remaining PDUs of the first PDU set, processing PDUs of a second PDU set according to the PSI-based discarding mechanism, regardless of whether the specified conditional criteria are met. (Paragraphs 166-185 following an example criteria of Importance value, if the importance value of a 2nd processed PUD Set is equal or lower than the signaled Importance Value, discarding will be applied to all corresponding PDUs of that 2nd PDU set regardless of an importance value of a previously PDU set) With respect to claim 3, Yi teaches the method of claim 1, wherein determining whether the specified conditional criteria are met comprises determining whether a time remaining until expiry of a discard timer of the PDU set meets a particular threshold. (Paragraph 77-98 – determination of discard timer expiring with various configurations such as different timer durations corresponding to different importance groups) With respect to claim 4, Yi teaches the method of claim 1, wherein determining whether the specified conditional criteria are met comprises determining whether a portion of PDUs of the first PDU set that has already been processed meets a particular threshold. (Paragraphs 143-147 – content ratio thresholds) With respect to claim 5, Yi teaches the method of claim 1, wherein determining whether the specified conditional criteria are met comprises determining whether the first PDU set is identified as an important PDU set. (Paragraphs 166-185 – importance value) With respect to claim 6, Yi teaches the method of claim 1, wherein determining whether the specified conditional criteria are met comprises determining whether a buffer size of a logical channel (LCH) or a LCH group (LCG) carrying the first PDU set is below a particular threshold. (Paragraph 133 buffered data amount, for example a certain logical channel) With respect to claim 7, Yi teaches the method of claim 1, wherein the PSI-based discarding mechanism includes using a first discarding timer value for PDU sets that are indicated by a PSI as important, and using a second, different discarding timer value for PDU sets that are indicated by a PSI as non-important. (Paragraph 77-88 – a PDU Set Importance can have a corresponding timer duration) With respect to claim 8, Yi teaches the method of claim 1, wherein the PSI-based discarding mechanism includes discarding PDU sets that are indicated by a PSI as non-important, without attempting transmission. (Paragraph 126, 226, 166-185- non important stored PDU sets are discarded, which would include those stored PDU sets awaiting initial transmission) With respect to claim 9, Yi teaches the method of claim 1, wherein processing a PDU comprises loading the PDU into a transmit buffer. (Paragraph 14 – transmitting side buffer) Claims 10-12 and 14-20 are similar in scope to claims 1-9 and are therefore rejected based on the same rationale. Allowable Subject Matter Claims 13-14 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 DAVID R LAZARO whose telephone number is (571)272-3986. The examiner can normally be reached M-F 8-4:30. 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, Emmanuel Moise can be reached at 571-272-3865. 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 R LAZARO/Primary Examiner, Art Unit 2455
Read full office action

Prosecution Timeline

Jul 22, 2024
Application Filed
Feb 21, 2026
Non-Final Rejection — §102 (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
87%
Grant Probability
90%
With Interview (+3.0%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 759 resolved cases by this examiner. Grant probability derived from career allow rate.

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