Prosecution Insights
Last updated: April 19, 2026
Application No. 18/176,271

TARGETED SIDELINK DENIAL OF SERVICE (DOS) DETECTION VIA INTER-USER EQUIPMENT (UE) COORDINATION MESSAGE

Non-Final OA §102
Filed
Feb 28, 2023
Examiner
MIAH, LITON
Art Unit
2642
Tech Center
2600 — Communications
Assignee
Qualcomm Incorporated
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
3y 1m
To Grant
97%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
488 granted / 650 resolved
+13.1% vs TC avg
Strong +22% interview lift
Without
With
+21.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
34 currently pending
Career history
684
Total Applications
across all art units

Statute-Specific Performance

§101
3.6%
-36.4% vs TC avg
§103
53.0%
+13.0% vs TC avg
§102
29.8%
-10.2% vs TC avg
§112
4.6%
-35.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 650 resolved cases

Office Action

§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 . Information Disclosure Statement The information disclosure statement submitted on May 13, 2024 has been considered by the Examiner and made of record in the application file. 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)(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) 1-26 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Twardokus et al “Vehicle-to-Nothing? Securing c-V2X Against Protocol-Aware DoS Attacks” IEEE INFOCOM 2022, XP034137012 (hereinafter Twardokus et al). Regarding claim 1, Twardokus et al disclose a method for wireless communications by a device (vehicle use for communication), the method comprising: transmitting, by the device, a number of fake inter-UE coordination (IUC) messages (SCI message) to reserve one or more resources (column 5 [lines 41-42] chosen CSR) for initial transmissions by the device (column 5 [lines 2-4, 37-56] and fig. 1(a) and 1(b) discloses transmission of SCI); receiving, by the device, one or more packets on at least one of the one or more resources (column 7 [lines 9-11] and column 8 [lines 25-27] discloses Eve transmits a short SCI message to collide with Alice’s); and determining, by the device, whether at least one of the one or more packets were transmitted by an attacker based on a jamming threshold (column 8 [lines 30-40] discloses monitor to detect a DoS attack; detect the attack based on PDR). Regarding claim 2, Twardokus et al discloses the number of fake IUC messages is based on a channel busy ratio (CBR) (column 8 [lines 40-41]). Regarding claim 3, Twardokus et al discloses the jamming threshold is associated with a channel busy ratio (CBR) (column 8 [lines 40-41]). Regarding claim 4, Twardokus et al discloses listening, by the device, on slots corresponding to the one or more resources (column 5 [lines 37-56]). Regarding claim 5, Twardokus et al discloses the device is one of a user equipment, a vehicle, a base station, or a server (column 5 [lines 15-19]). Regarding claim 6, Twardokus et al discloses the number is equal to a minimum number of IUC messages that the device can transmit (column 5 [lines 37-56]). Regarding claim 7, Twardokus et al discloses transmitting, by the device based on the at least one of the one or more packets not being determined to be transmitted by the attacker, an additional fake IUC message to reserve an additional one or more resources for initial transmissions by the device (column 5 [lines 37-56]). Regarding claim 8, Twardokus et al discloses determining, by the device based on a ratio associated with a number of the one or more packets received by the device being greater than or equal to the jamming threshold, that the at least one of the one or more packets are transmitted by the attacker (column 8 [lines 44-45]). Regarding claim 9, Twardokus et al discloses determining, by the device based on a ratio associated with a number of the one or more packets received by the device being less than the jamming threshold, that the at least one of the one or more packets are not transmitted by the attacker (column 8 [lines 44-45]). Regarding claim 10, Twardokus et al discloses transmitting, by the device based on the at least one of the one or more packets being determined to be transmitted by the attacker, a vehicular-based message (column 5 [lines 37-56]). Regarding claim 11, Twardokus et al discloses the vehicular-based message comprises at least one of a Layer 2 (L2) address for the device, an L2 address for the attacker, or a position of the attacker (column 5 [lines 2-4, 37-56] and fig. 1(a) and 1(b)). Regarding claim 12, Twardokus et al discloses the vehicular-based message is a Sensor Data Sharing Message (SDSM) (column 5 [lines 2-4, 37-56] and fig. 1(a) and 1(b)). Regarding claim 13, Twardokus et al discloses at least one of the number of fake IUC messages further comprises an indication of a reservation of one or more resources for initial transmissions of one or more other devices (column 5 [lines 2-4, 37-56] and fig. 1(a) and 1(b)). Regarding claim 14, Twardokus et al discloses an apparatus for wireless communications, the apparatus comprising: at least one memory (V2V communication; inherent in vehicle); and at least one processor (V2V communication; inherent in vehicle) coupled to the at least one memory and configured to: output for transmission a number of fake inter-UE coordination (IUC) messages (SCI message) to reserve one or more resources (column 5 [lines 41-42] chosen CSR) for initial transmissions by the apparatus (column 5 [lines 2-4, 37-56] and fig. 1(a) and 1(b) discloses transmission of SCI); receive one or more packets on at least one of the one or more resources (column 7 [lines 9-11] and column 8 [lines 25-27] discloses Eve transmits a short SCI message to collide with Alice’s); and determine whether at least one of the one or more packets were transmitted by an attacker based on a jamming threshold (column 8 [lines 30-40] discloses monitor to detect a DoS attack; detect the attack based on PDR). Regarding claims 15-26, see above rejection of claims 2-13. Response to Arguments In response to Election/Restriction, an election was made to examine the invention of first species, claims 1-26. Claims 27-30 has been cancelled. Conclusion The prior art made of record and not relied upon is considered pertinent to Applicant's disclosure. The following prior art are cited to show a method, which is considered pertinent to the claimed invention: Yang et al (US Pat. Pub. No. 2020/0128409) directed toward reporting an attack into an in-vehicle network. Han et al (US Pat. Pub. No. 2020/0413264) directed toward detecting the occurrence of a cyber-attack event. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LITON MIAH whose telephone number is (571)270-3124. The examiner can normally be reached Mon - Fri 7:30am -5:00pm. 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, Rafael Perez-Gutierrez can be reached on 571-272-7915. 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. /LITON MIAH/ Primary Examiner, Art Unit 2642
Read full office action

Prosecution Timeline

Feb 28, 2023
Application Filed
Jan 10, 2026
Non-Final Rejection — §102
Mar 26, 2026
Applicant Interview (Telephonic)
Mar 26, 2026
Examiner Interview Summary

Precedent Cases

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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
75%
Grant Probability
97%
With Interview (+21.5%)
3y 1m
Median Time to Grant
Low
PTA Risk
Based on 650 resolved cases by this examiner. Grant probability derived from career allow rate.

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