Prosecution Insights
Last updated: April 19, 2026
Application No. 18/796,618

FREQUENCY MODULATED CONTINUOUS WAVE (FMCW) SYNCHRONIZATION SIGNAL TRANSMISSION AND DETECTION

Non-Final OA §102
Filed
Aug 07, 2024
Examiner
AGHDAM, FRESHTEH N
Art Unit
2632
Tech Center
2600 — Communications
Assignee
Qualcomm Incorporated
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
86%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
546 granted / 660 resolved
+20.7% vs TC avg
Minimal +3% lift
Without
With
+3.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
10 currently pending
Career history
670
Total Applications
across all art units

Statute-Specific Performance

§101
7.7%
-32.3% vs TC avg
§103
48.7%
+8.7% vs TC avg
§102
22.6%
-17.4% vs TC avg
§112
12.5%
-27.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 660 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 . Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. See claim 40. 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. (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) 1-5, 7, 9, 11, 21-25, 27-28, 31-35, 37-38, and 40 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kwak et al. (hereinafter referred to as “Kwak”, KR 20230166946 A). As to claims 1, 21, and 40, Kwak teaches a user equipment (UE) comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the UE (paragraphs [0022], [0042]-[0044], and [0201]) to: monitor, according to a searching procedure, for at least one of a first frequency modulated continuous wave (FMCW (or chirp signal(s))) of a plurality of FMCWs, or a first synchronization signal block (SSB) burst of a plurality of SSB bursts, the monitoring comprising sweeping across a plurality of frequency resources during a first set of time resources according to a duration in time of each FMCW of the plurality of FMCWs and a frequency range associated with each FMCW of the plurality of FMCWs (by cross-correlating (i.e., sweeping across) primary synchronization signal(s) included in the SSB, wherein the PSS signal uses a chirp signal (or FMCW(s)) that has a predetermined period (i.e., time resources according to a duration in time of each FMCW of the plurality of FMCWs) and is a signal that increases or decreases linearly in frequency over time (i.e., a frequency range associated with each FMCW of the plurality of FMCWs)) paragraphs [0017]-[0018], [0022] and [0194]); and receive at least one of the first FMCW or the first SSB burst based at least in part on the monitoring (by performing cross-correlation to obtain PSS and SSS that are included in the SSB transmitted to the UE, paragraphs [0022] and [0194]). As to claims 2, 22, and 32, Kwak further teaches performing a primary synchronization based at least in part on receiving the first FMCW (paragraphs [0022] and [0194]); receiving the first SSB burst based at least in part on the primary synchronization (by performing cross-correlation to obtain PSS, paragraph [0194]); and performing a secondary synchronization based at least in part on reception of the first SSB burst (by using secondary synchronization signal (SSS) included in SSB, paragraphs [0194] and [0196], claim 10). As to claims 3, 23, and 33, Kwak further teaches performing an FMCW mixing procedure based at least in part on the monitoring to generate a beat signal (i.e., by performing cross-correlation, paragraph [0194]); and performing one or more Fast Fourier Transforms on the beat signal to identify one or more peak locations in a frequency domain, the one or more peak locations corresponding to the first FMCW (claim 8). As to claims 4, 24, and 34, Kwak further teaches sweep across the plurality of frequency resources during a second set of time resources according to a slope value (i.e., linear frequency increase or decrease associated with chirp signal(s) or FMCWs over time) that is based at least in part on the duration in time of each FMCW of the plurality of FMCWs and the frequency range associated with each FMCW of the plurality of FMCWs (by cross-correlating (i.e., sweeping across) primary synchronization signal(s) included in the SSB, wherein the PSS signal uses a chirp signal (or FMCW(s)) that has a predetermined period (i.e., time resources according to a duration in time of each FMCW of the plurality of FMCWs) and is a signal that increases or decreases linearly in frequency over time (i.e., a frequency range associated with each FMCW of the plurality of FMCWs)) paragraphs [0017]-[0018], [0022] and [0194]). As to claims 5, 25, and 35, Kwak further teaches receiving a first instance of the first FMCW during the first set of time resources; and receive a second instance of the first FMCW during the second set of time resources (paragraph [0194]). It is noted that given the claims their broadest reasonable interpretations, the first instance is the same as the second instance and the first set of time resources is the same as the second set of time resources. As to claims 7, 27, and 37, Kwak further teaches the plurality of FMCWs are transmitted at a first periodicity, and the plurality of SSB bursts are transmitted at a second periodicity (since FMCWs are sinusoidal signals, paragraph [0017]). It is noted that given the claims their broadest reasonable interpretations, the first periodicity is the same as the second periodicity. As to claims 9, 28, and 38, Kwak further teaches detecting, based at least in part on the monitoring, multiple FMCW beat frequencies (claim 8); and identify a unique pattern (i.e., using the SS sequence) in time and frequency based at least in part on the detection, wherein reception of the first FMCW is based at least in part on the identifying (i.e., time and frequency synchronization based on the cross-correlation results of the broadcasted SSB and the predetermined SS sequence generated at the UE). As to claim 11, Kwak further teaches the searching procedure comprises a cell search procedure, a beam management procedure, a tracking loop procedure, or any combination thereof (cell search, Fig. 9, paragraphs [0053]-[0057]). As to claim 31, Kwak teaches a non-transitory computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors (paragraphs [0022], [0042]-[0044], and [0201]) to: monitor, according to a searching procedure, for at least one of a first frequency modulated continuous wave (FMCW (or chirp signal(s))) of a plurality of FMCWs, or a first synchronization signal block (SSB) burst of a plurality of SSB bursts, the monitoring comprising sweeping across a plurality of frequency resources during a first set of time resources according to a duration in time of each FMCW of the plurality of FMCWs and a frequency range associated with each FMCW of the plurality of FMCWs (by cross-correlating (i.e., sweeping across) primary synchronization signal(s) included in the SSB, wherein the PSS signal uses a chirp signal (or FMCW(s)) that has a predetermined period (i.e., time resources according to a duration in time of each FMCW of the plurality of FMCWs) and is a signal that increases or decreases linearly in frequency over time (i.e., a frequency range associated with each FMCW of the plurality of FMCWs)) paragraphs [0017]-[0018], [0022] and [0194]); and receive at least one of the first FMCW or the first SSB burst based at least in part on the monitoring (by performing cross-correlation to obtain PSS and SSS that are included in the SSB transmitted to the UE, paragraphs [0022] and [0194]). Allowable Subject Matter Claims 6, 8, 10, 26, 29, 36, and 39 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 The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Jeon et al., US 2022/0256519, Figs. 9-13 Akkarakaran et al., US 2018/0287840, Figs. 11-13 Liu et al., US 2024/0298279, abstract, Figs. 13-14 and 22 Cheema et al., US 2023/0388167, abstract, Figs. 2-3 and 13 Any inquiry concerning this communication or earlier communications from the examiner should be directed to FRESHTEH N AGHDAM whose telephone number is (571)272-6037. The examiner can normally be reached Monday-Friday 10:30-7:00 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, Chieh M Fan can be reached at 571-272-3042. 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. /FRESHTEH N AGHDAM/ Primary Examiner, Art Unit 2632 3/3/2026
Read full office action

Prosecution Timeline

Aug 07, 2024
Application Filed
Mar 03, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603677
COMPOSITE RECONFIGURABLE INTELLIGENT SURFACE SYSTEM FOR REAL TIME BEAM STEERING AND METHOD THEREOF
2y 5m to grant Granted Apr 14, 2026
Patent 12587426
SIGNAL TRANSMISSION BASED ON TRANSFORMED SIGNAL CONSTELLATION
2y 5m to grant Granted Mar 24, 2026
Patent 12580793
JOINT TIMING OFFSET, FREQUENCY OFFSET, AND CHANNEL ESTIMATION
2y 5m to grant Granted Mar 17, 2026
Patent 12580584
DELTA SIGMA MODULATION CIRCUIT, DIGITAL TRANSMISSION CIRCUIT, AND DIGITAL TRANSMITTER
2y 5m to grant Granted Mar 17, 2026
Patent 12568004
FEED FORWARD EQUALIZERS WITH CURRENT MODE SAMPLING
2y 5m to grant Granted Mar 03, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
83%
Grant Probability
86%
With Interview (+3.3%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 660 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month