Prosecution Insights
Last updated: August 17, 2026
Application No. 18/982,847

RANGING METHOD, AND APPARATUS

Non-Final OA §101§102
Filed
Dec 16, 2024
Priority
Jun 22, 2022 — continuation of PCTCN2022100571
Examiner
MOORE, WHITNEY
Art Unit
Tech Center
Assignee
Huawei Technologies Co., Ltd.
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
6m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allowance Rate
1024 granted / 1162 resolved
+28.1% vs TC avg
Moderate +10% lift
Without
With
+10.0%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 2m
Avg Prosecution
28 currently pending
Career history
1199
Total Applications
across all art units

Statute-Specific Performance

§101
4.5%
-35.5% vs TC avg
§103
48.0%
+8.0% vs TC avg
§102
28.1%
-11.9% vs TC avg
§112
14.9%
-25.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1162 resolved cases

Office Action

§101 §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 This office acknowledges receipt of the following item(s) from the applicant: Information Disclosure Statement(s) (IDS) filed on 10 February 2025 and 13 August 2025. The references have been considered. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claims 1-20 are rejected under 35 U.S.C. 101 because the claimed invention is directed to an abstract idea without significantly more and is not integrated into a practical application. The claim(s) recite(s) limitations that are considered to be data processing. Concepts determined to be abstract ideas, and thus patent ineligible, include certain methods of organizing human activity, such as fundamental economic practices (Alice, 573 U.S. at 219—20; Bilski, 561 U.S. at 611); mathematical formulas (Parker v. Flook, 437 U.S. 584, 594—95 (1978)); and mental processes (Gottschalk v. Benson, 409 U.S. 63, 69 (1972)). The 101 guidance instructs us to look to whether the claim recites: (1) any judicial exceptions, including certain groupings of abstract ideas (i.e., mathematical concepts, certain methods of organizing human activity such as a fundamental economic practice, or mental processes); and (2) additional elements that integrate the judicial exception into a practical application (see MPEP § 2106.05(a)-(c), (e)-(h)). Only if a claim (1) recites a judicial exception and (2) does not integrate that exception into a practical application, do we then look to whether the claim: (3) adds a specific limitation beyond the judicial exception that is not “well-understood, routine, conventional” in the field (see MPEP § 2106.05(d)); or (4) simply appends well-understood, routine, conventional activities previously known to the industry, specified at a high level of generality, to the judicial exception. As best understood, the claims contain limitations are directed to data processing, as is similar to Electric Power Group, Benson and Flook. Specifically, the claims obtain data and process the data using various algorithms and/or mathematical concepts to make a determination based on the processed data; mathematical formulas, equations or calculations to provide the output, these will all fall under the category of Mathematical Concepts and along with mental processes they are considered to be abstract. See the updated 101 guidance issued in October 2019, sections A and C. Analysis of the claims Step 2A, Prong One: This part of the eligibility analysis evaluates whether the claim recites a judicial exception. As explained in MPEP 2106.04, subsection II, a claim “recites” a judicial exception when the judicial exception is “set forth” or “described” in the claim. Claim 1 recites: sending a first ranging frame on a first channel, wherein the first ranging frame carries first ranging information using at least one first symbol; receiving a second ranging frame from a second node on the first channel, wherein the second ranging frame carries second ranging information using at least one second symbol; receiving first channel state information that is from the second node and corresponds to the first channel; determining second channel state information corresponding to the first channel based on the at least one second symbol; and determining channel state information corresponding to the first channel based on the first channel state information and the second channel state information, wherein the channel state information corresponding to the first channel is used to measure a distance between a sender of the first ranging frame and the second node. This judicial exception is not integrated into a practical application because the claims do not recite any limitation that links the process to anything other than the processing of data and making a determination based on the result of the data processing which encompass the use of mathematical operations or can be performed as a mental process which are recognized abstract ideas. Step 2A, Prong Two: This part of the eligibility analysis evaluates whether the claim as a whole integrates the recited judicial exception into a practical application of the exception. This evaluation is performed by (1) identifying whether there are any additional elements recited in the claim beyond the judicial exception, and (2) evaluating those additional elements individually and in combination to determine whether the claim as a whole integrates the exception into a practical application. See MPEP 2106.04(d). The claim recites a first additional element of “sending a first ranging frame on a first channel, wherein the first ranging frame carries first ranging information using at least one first symbol; receiving a second ranging frame from a second node on the first channel,”. This step is recited at a high level of generality and amounts to mere data gathering/data processing. These limitations when given their BRI in light of the specification would be consider additional elements and interpreted insignificant pre- and post-solution activity, i.e., necessary data gathering and data outputting, to the abstract idea. See MPEP 2106.05(g). It is necessary to acquire the data and process it to use the recited judicial exception to perform the calculations. The step amounts to insignificant extra-solution activity and does not integrate the exception into a practical application. When determining whether a claim simply recites a judicial exception with the words “apply it” (or an equivalent), such as mere instructions to implement an abstract idea on a computer, examiners may consider: (1) whether the claim recites only the idea of a solution or outcome i.e., the claim fails to recite details of how a solution to a problem is accomplished; (2) whether the claim invokes computers or other machinery merely as a tool to perform an existing process; and (3) the particularity or generality of the application of the judicial exception. See MPEP 2106.05(f). Here, this judicial exception is not integrated into a practical application because the claims do not recite any limitation that links the process to anything other than the processing of data and output (determination) of a result. The claim(s) does/do not include additional elements that are sufficient to amount to significantly more than the judicial exception because there are no elements in Claim 1 that appear to clearly have any actionable steps other than making a determination or outputting a result which would be mere extra-solution activity. As is best understood Claim 1 is directed to gathering data for processing by a processor or processor based elements (although not claimed in Claim 1) and there are no explicit structural elements claimed in these claims that would be considered enough to make the claims non-abstract as the heart of the claim is directed to abstract processing steps. Even if the processor was claimed, the use of generic/well known elements and general processors/computers for the mere implementation of an abstract idea on a computer does not qualify as significantly more. It is not claimed what happens after the final selection/determination step. How is the is the data used, is it transmitted or output in some manner for use, does the system perform another task based on the determination or is the operation merely used for determining most likely position. As currently claimed the limitations are just an operation of determining position without anything that would be considered significantly more, the operation of processing data to determine a position has been found to be an abstract idea. Therefore, the limitation represents no more than mere instructions to apply the judicial exception on a computer and does not integrate the exception into a practical application of the exception. Step 2B: A conclusion that an additional element is insignificant extra-solution activity in Step 2A should be re-evaluated in Step 2B. See MPEP 2106.05, subsection I.A. At Step 2B, the re-evaluation of the insignificant extra-solution activity consideration takes into account whether or not the extra-solution activity is well understood, routine, and conventional in the field. See MPEP 2106.05(g). Here, the steps of sending and receiving and the assumed processor is equal to a machine being merely an object on which the method operates, which does not integrate the exception into a practical application or provide significantly more. Receiving data is basic data gathering and would not provide significantly more and is insignificant extra-solution activity as the use of a machine that contributes only nominally or insignificantly to the execution of the claimed method (e.g., in a data gathering step or in a field-of-use limitation) would not integrate a judicial exception or provide significantly more (MPEP 2106.05 (b), III). The processor also does` not pertain to an improvement to the functioning of a “computer system.” See MPEP § 2106.05(a). There is no indication that the assumed CPU being used needs to be more than a generic device. Therefore, these limitation remains insignificant extra-solution activity even upon reconsideration and does not amount to significantly more. The analysis under Step 2A, Prong Two is carried through to Step 2B. Even when considered in combination, these additional elements represent mere instructions to apply an exception and insignificant extra-solution activity, and therefore the claimed invention is directed to an abstract idea without significantly more. There are no limitations in the independent or the dependent claims that would make the processor/computer change in operation in a manner that would make it work in a way that is new and not capable of being done on a generic processor/computer. The processor in these claims performs merely as a tool and does not appear to provide an improvement to the functionality of a computer. Absent evidence to the contrary, claims 1-20 merely rely on the processing of data. Making a determination as a result of processed data is well known and conventional. Claims 2-10 and 12-20 expand on the processing/mathematical/mental concepts limitations by claim limitations directed to defining steps of the processing, setting values and use of the processed data and do not provide a practical application of the abstract idea or significantly more than the abstract idea itself. Claim 11 teaches a system that contains a processor to execute the same limitations analyzed with respect to Claim 1 above. As stated above, the use of processor is well known and conventional and usually required for data gathering and as such does not provide a practical application of the abstract idea or significantly more than the abstract idea itself. Claims 1-20 do not include additional elements that are sufficient to amount to significantly more than the abstract idea itself, and thus, the additional elements do not transform the abstract idea into a patent eligible application of the abstract idea. The additional elements, individually and as an ordered combination, do not transform the nature of the claim into a patent-eligible application. Taken alone or as an ordered combination, the limitations of claims do not amount to a claim as a whole that is significantly more than the judicial exception. Using obtained values from the computational operations is not a meaningful limitation that alone can amount to significantly more than the exception. Claims 1-20 merely rely on generic components as a tool to apply the abstract idea. The application of the abstract idea to generic components does not transform the claim into a patent-eligible application of the abstract idea. While the newly provided guidance of December 2025 states that “When evaluating a claim as a whole, examiners should not dismiss additional elements as mere “generic computer components” without considering whether such elements confer a technological improvement to a technical problem, especially as to improvements to computer components or the computer system.” There are no limitations stating that the any assumed structural elements behave in a non-conventional manner or that the assumed processor is using collected and stored data for anything more than evaluation. All other dependent claims build upon the abstract idea and do not result in significantly more or a practical application and merely just expand on how the software and algorithms operate to process the data. There is no claim to how the processed data is used besides simply making a determination or what tangible step is taken once the processing is done that would link the processing of data to practical application or an actual actionable step. While the algorithms and calculation processing may be novel, novelty does not change the claim from being an abstract idea. 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, 2, 11 and 12 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Manolakos et al. (Manolakos, US PGPub 2021/0099965). Referring to Claim 1, Manolakos teaches sending a first ranging frame on a first channel, wherein the first ranging frame carries first ranging information using at least one first symbol (Fig. 4A-4D and associated text as well as Fig. 6 and [0108]); receiving a second ranging frame from a second node on the first channel, wherein the second ranging frame carries second ranging information using at least one second symbol (Fig. 4A-4D and associated text as well as Fig. 6 and [0108]); receiving first channel state information that is from the second node and corresponds to the first channel ([0110] and [0113]); determining second channel state information corresponding to the first channel based on the at least one second symbol ([0108]); and determining channel state information corresponding to the first channel based on the first channel state information and the second channel state information, wherein the channel state information corresponding to the first channel is used to measure a distance between a sender of the first ranging frame and the second node; [0110]. Referring to Claims 2 and 12, Manolakos teaches wherein the first ranging frame comprises at least one first radio frame, and the second ranging frame comprises at least one second radio frame; [0076]. Referring to Claim 11, Manolakos teaches a processor ([0027]) executing instructions in a memory that cause the communication apparatus to: send a first ranging frame on a first channel, wherein the first ranging frame carries first ranging information using at least one first symbol; receive a second ranging frame from a second node on the first channel, wherein the second ranging frame carries second ranging information using at least one second symbol; receive first channel state information that is from the second node and corresponds to the first channel; determine second channel state information corresponding to the first channel based on the at least one second symbol; and determine channel state information corresponding to the first channel based on the first channel state information and the second channel state information, wherein the channel state information corresponding to the first channel is used to measure a distance between a sender of the first ranging frame and the second node; see citations of Claim 1. Allowable Subject Matter Claims 3-10 and 13-20 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. Note: this is only in reference to the prior art rejection and is related to the 101 rejection. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to WHITNEY T MOORE whose telephone number is (571)270-3338. The examiner can normally be reached Monday-Friday from 7am-4pm. 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, Jack Keith can be reached at (571) 272-6878. 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. /WHITNEY MOORE/Primary Examiner, Art Unit 3646
Read full office action

Prosecution Timeline

Dec 16, 2024
Application Filed
Jul 24, 2026
Non-Final Rejection mailed — §101, §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12704582
SIDELINK-AIDED HYBRID NETWORK POSITIONING
3y 4m to grant Granted Aug 11, 2026
Patent 12699190
SYNTHETIC CARRIER PHASE OBSERVABLE GENERATING METHODS AND SYSTEMS FOR USE IN FORMING TIME-DIFFERENCED NAVIGATION SATELLITE SYSTEM OBSERVABLES
2y 9m to grant Granted Aug 04, 2026
Patent 12699178
Inter-Node Ranging Method and Apparatus
2y 5m to grant Granted Aug 04, 2026
Patent 12695178
SYSTEM AND METHOD FOR DISTRIBUTED BEAMFORMING
3y 2m to grant Granted Jul 28, 2026
Patent 12687614
SYSTEMS AND METHODS FOR REMOTELY TRACKING LIFE SIGNS WITH A MILLIMETER-WAVE RADAR
2y 2m to grant Granted Jul 21, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
88%
Grant Probability
98%
With Interview (+10.0%)
2y 2m (~6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1162 resolved cases by this examiner. Grant probability derived from career allowance 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