Prosecution Insights
Last updated: July 17, 2026
Application No. 18/529,973

CELL DETECTION, IDENTIFICATION, AND MEASUREMENTS FOR SMALL CELL DEPLOYMENTS

Final Rejection §103§112
Filed
Dec 05, 2023
Priority
Apr 03, 2013 — provisional 61/808,146 +8 more
Examiner
ANSARI, NAJEEBUDDIN
Art Unit
2463
Tech Center
2400 — Computer Networks
Assignee
InterDigital Inc.
OA Round
4 (Final)
64%
Grant Probability
Moderate
5-6
OA Rounds
1y 9m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allowance Rate
298 granted / 467 resolved
+5.8% vs TC avg
Strong +58% interview lift
Without
With
+58.1%
Interview Lift
resolved cases with interview
Typical timeline
4y 4m
Avg Prosecution
25 currently pending
Career history
501
Total Applications
across all art units

Statute-Specific Performance

§101
3.8%
-36.2% vs TC avg
§103
75.7%
+35.7% vs TC avg
§102
12.3%
-27.7% vs TC avg
§112
7.6%
-32.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 467 resolved cases

Office Action

§103 §112
DETAILED ACTION In response to communication(s) filed 02/17/2026. Claims 25, 28-33 and 36-40 are pending for examination. 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 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 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 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. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 25, 28-30, 33 and 36-38 are rejected under 35 U.S.C. 103 as being unpatentable over Ro et al. (US 2014/0286176 A1) in view of Han et al. (US 2015/0004969 A1) hereinafter “Ro” and “Han.” Regarding Claim 25, Ro teaches A network node (Ro: paragraphs 0015, 0050 & Fig. 2, network node or base station), the network node comprising: a processor (Ro: paragraph 0100 & Fig. 7, processor), wherein the processor is configured to: send a first message to a wireless transmit/receive unit (WTRU) (Ro: paragraph 0050 & Fig. 2, transmit reference signal configuration information (RSCI) to user equipment; see also paragraphs 0050 & Fig. 2, user equipment), wherein the first message indicates a first set of reference signals associated with a cell and a second set of reference signals associated with the cell (Ro: paragraphs 0015 and 0036, RSs of at least one RS type among RSs indicated by the received RSCI; see also paragraphs 0056 and 0060-0061, different RS types); send a physical downlink control channel (PDCCH) transmission (Ro: paragraph 0050 & Fig. 2, transmit monitoring reference signal (MRS) to UE for use in radio link monitoring of the UE; see also paragraphs 0006 & 0062), wherein the PDCCH transmission indicates whether to use the first set of reference signals associated with the cell (Ro: paragraphs 0060-0061, i.e. network may configure an RS type for deciding "Out-of-sync") or the second set of reference signals associated with the cell (Ro: paragraphs 0060-0061, i.e. network may configure an RS type for deciding "In-sync”) for radio link monitoring measurements (Ro: paragraph 0051 & Fig. 2, UE checks an RS for use in radio link monitoring and an MRS configuration); and receive a second message from the WTRU after the PDCCH transmission has been sent (Ro: paragraph 0051 & Fig. 2 UE checks resource configuration for use in radio link monitoring), wherein the second message indicates a request for the RRC procedure (Ro: paragraphs 0054-0055, UE transmits an out-of-sync indication to higher layer and determines radio link failure). Ro fails to explicitly teach sending and/or receiving a message indicating a measurement threshold (has been exceeded) that indicates a condition for the WTRU to request a RRC procedure. However, Han from an analogous art similarly teaches a UE comparing a measured metric value to a threshold that is received athe eNB and further reporting the measured metric value (to the eNB) if the measured metric value exceeds a threshold (Han: paragraphs 0036-0037). Han additionally teaches if the measured RRM metric value fulfills a condition for cell selection or reselection (based on the relationship of the RRM metric value to the threshold), then the UE may camp on the identified cell (Han: paragraph 0037) thus indicating the threshold condition has been fulfilled or exceeded for the UE to request the RRC procedure. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Ro to include a measurement threshold as taught by Han so as to determine resources that meet a configured criteria for requesting the RRC procedure. Regarding Claim 28, Ro-Han teaches the respective claim(s) as presented above and further teaches wherein the first set of reference signals comprises at least one of a channel state information reference signal (CSI-RS) or a synchronization signal (Ro: paragraph 0062, RSCI further includes CSI-RS). Regarding Claim 29, Ro-Han teaches the respective claim(s) as presented above and further teaches wherein the first set of reference signals and the second set of reference signals are sent via different sets of resources (Ro: paragraphs 0056 and 0060-0061, different RS types). Regarding Claim 30, Ro-Han teaches the respective claim(s) as presented above and further teaches wherein the resources comprise physical resource blocks (PRBs) (Ro: paragraph 0050 & Fig. 2, RS configuration and RS for use in RLM). Regarding Claim 33, Ro teaches A method performed by a network node (Ro: paragraphs 0015, 0050 & Fig. 2, network node or base station), the method comprising: sending a first message to a wireless transmit/receive unit (WTRU) (Ro: paragraph 0050 & Fig. 2, transmit reference signal configuration information (RSCI) to user equipment; see also paragraphs 0050 & Fig. 2, user equipment), wherein the first message indicates a first set of reference signals associated with a cell and a second set of reference signals associated with the cell (Ro: paragraphs 0015 and 0036, RSs of at least one RS type among RSs indicated by the received RSCI; see also paragraphs 0056 and 0060-0061, different RS types); sending a physical downlink control channel (PDCCH) transmission, (Ro: paragraph 0050 & Fig. 2, transmit monitoring reference signal (MRS) to UE for use in radio link monitoring of the UE; see also paragraphs 0006 & 0062), wherein the PDCCH transmission indicates whether to use the first set of reference signals associated with the cell (Ro: paragraphs 0060-0061, i.e. network may configure an RS type for deciding "Out-of-sync") or the second set of reference signals associated with the cell (Ro: paragraphs 0060-0061, i.e. network may configure an RS type for deciding "In-sync”) for radio link monitoring measurements (Ro: paragraph 0051 & Fig. 2, UE checks an RS for use in radio link monitoring and an MRS configuration); and receiving a second message from the WTRU after the PDCCH transmission has been sent, wherein the second message indicates a request for a Radio Resource Control (RRC) procedure (Ro: paragraph 0051 & Fig. 2 UE checks resource configuration for use in radio link monitoring), wherein the second message indicates a request for a Radio Resource Control (RRC) procedure (Ro: paragraphs 0054-0055, UE transmits an out-of-sync indication to higher layer and determines radio link failure). Ro fails to explicitly teach sending and/or receiving a message indicating a measurement threshold (has been exceeded) that indicates a condition for the WTRU to request a RRC procedure. However, Han from an analogous art similarly teaches a UE comparing a measured metric value to a threshold that is received athe eNB and further reporting the measured metric value (to the eNB) if the measured metric value exceeds a threshold (Han: paragraphs 0036-0037). Han additionally teaches if the measured RRM metric value fulfills a condition for cell selection or reselection (based on the relationship of the RRM metric value to the threshold), then the UE may camp on the identified cell (Han: paragraph 0037) thus indicating the threshold condition has been fulfilled or exceeded for the UE to request the RRC procedure. Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Ro to include a measurement threshold as taught by Han so as to determine resources that meet a configured criteria for requesting the RRC procedure. Regarding Claim 36, Ro-Han teaches the respective claim(s) as presented above and further teaches wherein the first set of reference signals comprises at least one of a channel state information reference signal (CSI-RS) or a synchronization signal (Ro: paragraph 0062, RSCI further includes CSI-RS). Regarding Claim 37, Ro-Han teaches the respective claim(s) as presented above and further teaches wherein the first set of reference signals and the second set of reference signals are sent via different sets of resources (Ro: paragraphs 0056 and 0060-0061, different RS types). Regarding Claim 38, Ro-Han teaches the respective claim(s) as presented above and further teaches wherein the resources comprise physical resource blocks (PRBs) (Ro: paragraph 0050 & Fig. 2, RS configuration and RS for use in RLM). Claims 31, 32, 39 and 40 are rejected under 35 U.S.C. 103 as being unpatentable over Ro-Han in view of Yi et al. (US 2015/0358094 A1) hereinafter “Yi.” Regarding Claim 31, Ro-Han teaches the respective claim(s) as presented above however fails to explicitly teach wherein one of the first set or the second set of reference signals is received via discovery resources. Yi from an analogous art similarly teaches performing RLM (Yi: paragraph 0058) and further teaches receiving a discovery signal indicating the reference signals used for RLM (Yi: paragraph 0059). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Ro-Han to transmit a discovery signal as taught by Yi to further indicate reference signals used for RLM. Regarding Claim 32, Ro-Han teaches the respective claim(s) as presented above however fails to explicitly teach wherein the PDCCH transmission indicates an active state. Yi from an analogous art similarly teaches performing RLM (Yi: paragraph 0058) and further teaches transmitting to a user equipment a signal including a measurement configuration in which the user device can determine whether a cell is on state or off state based on a cell on/off indicator received by the measurement configuration signal (Yi: paragraph 0096). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Ro-Han to transmit an indication of the state of a cell as taught by Yi to ensure cells are currently active for RLM. Regarding Claim 39, Ro-Han teaches the respective claim(s) as presented above however fails to explicitly teach wherein one of the first set or the second set of reference signals is received via discovery resources. Yi from an analogous art similarly teaches performing RLM (Yi: paragraph 0058) and further teaches receiving a discovery signal indicating the reference signals used for RLM (Yi: paragraph 0059). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Ro-Han to transmit a discovery signal as taught by Yi to further indicate reference signals used for RLM. Regarding Claim 40, Ro-Han teaches the respective claim(s) as presented above however fails to explicitly teach wherein the PDCCH transmission indicates an active state. Yi from an analogous art similarly teaches performing RLM (Yi: paragraph 0058) and further teaches transmitting to a user equipment a signal including a measurement configuration in which the user device can determine whether a cell is on state or off state based on a cell on/off indicator received by the measurement configuration signal (Yi: paragraph 0096). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Ro-Han to transmit an indication of the state of a cell as taught by Yi to ensure cells are currently active for RLM. Response to Amendments In view of remarks filed 02/17/2026, previous rejection under 35 USC § 112(a) has been withdrawn. Response to Arguments Applicants' arguments: a) Ro-Han alone or in combination fails to teach or suggest a network node sending a first message including a measurement threshold that indicates a condition for the WTRU to request an RRC procedure and further receiving a second message from the WTRU which indicates the measurement threshold has been exceeded and indicates a request for the RRC procedure (remarks, pages 7-8). Examiner’s response: Applicant's arguments filed 02/17/2026 have been fully considered but they are not persuasive. As previously presented Ro teaches comparing the measured metric value to a threshold that is received from the eNB and further reporting the measured metric value (to the eNB) if the measured metric value exceeds a threshold (Han: paragraphs 0036-0037). Han additionally teaches if the measured RRM metric value fulfills a condition for cell selection or reselection (based on the relationship of the RRM metric value to the threshold), then the UE may camp on the identified cell (Han: paragraph 0037). Examiner notes since Han teaches cell selection or reselection occurs after the condition of the metric value is fulfilled (based on comparison to the threshold value), Han similarly teaches indicating a request for the RRC-defined mobility procedure for cell selection or reselection based a comparison of the measured metric value to the threshold, thus indicating the threshold condition has been fulfilled or exceeded for the UE to request the RRC procedure. Therefore the rejection(s) of claims 25, 33 and respective dependent claims is maintained. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to NAJEEB ANSARI whose telephone number is (571)270-5446. The examiner can normally be reached Monday-Friday 10am to 2pm. 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, ASAD NAWAZ can be reached at (571) 272-3988. 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. /NAJEEB ANSARI/Examiner, Art Unit 2463 /ASAD M NAWAZ/Supervisory Patent Examiner, Art Unit 2463
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Prosecution Timeline

Show 5 earlier events
Jul 18, 2025
Interview Requested
Jul 24, 2025
Applicant Interview (Telephonic)
Aug 15, 2025
Request for Continued Examination
Aug 19, 2025
Response after Non-Final Action
Nov 19, 2025
Non-Final Rejection mailed — §103, §112
Feb 17, 2026
Response Filed
Feb 23, 2026
Interview Requested
Jun 08, 2026
Final Rejection mailed — §103, §112 (current)

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Prosecution Projections

5-6
Expected OA Rounds
64%
Grant Probability
99%
With Interview (+58.1%)
4y 4m (~1y 9m remaining)
Median Time to Grant
High
PTA Risk
Based on 467 resolved cases by this examiner. Grant probability derived from career allowance rate.

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