Prosecution Insights
Last updated: July 17, 2026
Application No. 18/553,891

DYNAMIC SEARCH WINDOW FOR ANGLE OF ARRIVAL ESTIMATION

Non-Final OA §102
Filed
Oct 04, 2023
Priority
Apr 06, 2021 — provisional 63/171,324 +2 more
Examiner
DOAN, PHUOC HUU
Art Unit
2646
Tech Center
2600 — Communications
Assignee
Telefonaktiebolaget LM Ericsson
OA Round
2 (Non-Final)
92%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 92% — above average
92%
Career Allowance Rate
1035 granted / 1130 resolved
+29.6% vs TC avg
Moderate +9% lift
Without
With
+8.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
14 currently pending
Career history
1148
Total Applications
across all art units

Statute-Specific Performance

§101
2.4%
-37.6% vs TC avg
§103
39.7%
-0.3% vs TC avg
§102
38.7%
-1.3% vs TC avg
§112
4.6%
-35.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1130 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 . Response to Arguments Applicant's arguments filed 03/30/2026 have been fully considered but they are not persuasive. Applicant’s argued that Applicant respectfully submits that Yu does not disclose, teach, or suggest each and every feature recited in Applicant's Claim 34. For example, Yu does not disclose, teach, or suggest "transmitting, to a second network node, a message comprising search window information, the search window information comprising ... information associated with an uncertainty level of the expected angle," as recited in Claim 34. Rather, Yu merely discloses that "[t]he LMF network element sends a measurement request message to the serving base station of the terminal device and a neighboring base station of the serving base station." (Yu, para. 159). Yu further provides a table indicating the parameters included in such measurement request message. (Yu, para. 159; page 13, Table 1). Even to the extent that Table 1 discloses an optional parameter called "Search Window parameters," Yu merely describes this parameter as being "used to measure a relative uplink arrival time." (Yu, page 13, Table 1). There is no disclosure in Yu that the search window parameters include "information associated with an uncertainty level of the expected angle," as recited in Claim 34. Likewise, though Table 1 includes a parameter called "Angle range" and indicates that this "is the embodiment of the present invention" of Yu, the reference merely describes this parameter as a plane angle from -180 to 180 and including a first plane angle AAoA from -180 to 180 and a second plane angle ZAOA from 0 to 180. (Yu, page 13, Table 1). Again, there is no disclosure in Yu that any of the parameters of the measurement request message includes "information associated with an uncertainty level of the expected angle," as recited in Claim 34. As such, Applicant respectfully submits that Yu does not disclose, teach, or suggest each and every feature recited in Claim 34. Certainly, Yu does not clearly and unequivocally disclose all of the limitations arranged or combined in the same way as recited in the claim. For at least these reasons, Applicant respectfully requests reconsideration and allowance of Claim 34, together with Claims 35 to 40 that depend on Claim 34. For analogous reasons, Applicant also requests reconsideration and allowance of Claims 42, 52, and 53, together with Claims 43 to 49 that depend on Claim 42. In response, Yu disclosed, See Fig 3, 12 “disclosed a first, and second network node, such as performed by a first network node which is a Serving base station, transmitting a message comprising search window information to second network node which is a “Location management function LMF”; wherein a message comprising search window information which the parameters carried in the NRPPA message are shown in the following TABLE 1 with periodicity Search Window Parameters Optional Used to measure a relative uplink arrival time Measurement Quantities Optional Indicating the base station to measure par [0159] which defined as a search window information message. the search window information comprising: information associated with an expected angle wherein the expected angle (as defined in specification, Fig. 19, and Example D23-D24; integers ranging from 0 to N-1 so that their resolution is 360/N degrees.) comprises at least one of: an expected Azimuth of Arrival AoA with angle AOA measurement parameter as disclosed the same as feature of Yu [0159], and Yu, the reference merely describes the same as a feature of this parameter as a plane angle from -180 to 180 and including a first plane angle AAoA from -180 to 180 and a second plane angle ZAOA from 0 to 180. (Yu, page 13, Table 1), and an expected Zenith of Arrival, ZoA, and information associated with an uncertainty level of the expected angle, and receiving, a response message from the second network node [0163] an uncertainty level of the expected angle performed by measuring an incident angle of a strongest path of the reference signal of Yu, the reference merely describes this parameter as a plane angle from -180 to 180 and including a first plane angle AAoA from -180 to 180 and a second plane angle ZAOA from 0 to 180. (Yu, page 13, Table 1), or the UAOA may be obtained by measuring an incident angle of a line-of-sight path of the reference signal; the UAOA obtained by measuring an incident angle of a second strongest path of the reference signal may be used as an alternative option, wherein the response message comprises at least one of: a Physical Cell Identifier of at least one measurement, a Cell Global Identifier of at least one measurement, a Transmission and Reception Point Identifier of at least one measurement [0159], and TABLE 1; ); an uplink AoA; an Uplink Sounding Reference Signal-Reference Signal Received Power; a time stamp associated with at least one measurement; and a quality level associated with at least one measurement [0163] applied the UAOA obtained by measuring an incident angle of a second strongest path of the reference signal may be used as an alternative option. 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 – Claim(s) 34-40, 42-49, 51-53 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Yu et al. (US Pub No. 2021/0266859). Claim 34, Yu discloses a method performed by a first network node comprising: transmitting, to a second network node (See Fig 3 “disclosed a first, and second network node”), a message comprising search window information (See par [0159] “parameters carried in the NRPPA message are shown in the following TABLE 1 with periodicity Search Window Parameters Optional Used to measure a relative uplink arrival time Measurement Quantities Optional Indicating the base station to measure “), the search window information comprising: information associated with an expected angle wherein the expected angle comprises at least one of: an expected Azimuth of Arrival, AoA (See par [0159] Table 1 with angle AOA measurement parameter), and an expected Zenith of Arrival, ZoA, and information associated with an uncertainty level of the expected angle, and receiving, a response message from the second network node (par [0163] “an uncertainty level of the expected angle performed by measuring an incident angle of a strongest path of the reference signal, or the UAOA may be obtained by measuring an incident angle of a line-of-sight path of the reference signal; the UAOA obtained by measuring an incident angle of a second strongest path of the reference signal may be used as an alternative option”, wherein the response message comprises at least one of: a Physical Cell Identifier of at least one measurement, a Cell Global Identifier of at least one measurement, a Transmission and Reception Point Identifier of at least one measurement (See par [0159] TABLE 1); an uplink AoA; an Uplink Sounding Reference Signal-Reference Signal Received Power; a time stamp associated with at least one measurement; and a quality level associated with at least one measurement (par [0163] “applied the UAOA obtained by measuring an incident angle of a second strongest path of the reference signal may be used as an alternative option”). Claim 35, 43, Yu further discloses the method of Claim 34, further comprising: receiving, based at least partially on the search window information, at least one measurement from the second network node; and refining and/or adapting the search window information based on the at least one measurement (par [0159] “used by signal quality measurement which mandatory quality of SRS in a transmission periodicity Search Window Parameters, and further disclosed in par [0193] for example measurement from the second network node by the serving base station, or neighboring base station ”). Claim 36, 44, Yu further discloses the method of Claims 34, wherein: the message comprises a New Radio Positioning Protocol A, NRPPA (par [0138]), measurement request message, the response message comprises NRPPA measurement response message, the first network node comprises a location server, and the second network node comprises a Central Unit, CU (par [0026] “for example, a 5G system, a base station may include a centralized unit (CU) and a distributed unit (DU). The F1 application protocol is a protocol for transmission between the CU and the DU”). Claim 37, 45, Yu further discloses the method of Claim 34, wherein: the message comprises a F1 Positioning Measurement Request message, and the first network node comprises a Central Unit, CU, and the second network node comprises a Distributed Unit, DU (par [0026] “The F1 application protocol is a protocol for transmission between the CU and the DU”). Claim 38, 46, Yu further discloses the method of Claim 34, wherein the information associated with the uncertainty level of the expected angle indicates: a value representing a level of uncertainty of the expected angle, or that the first network node has no knowledge of the level of uncertainty of the expected angle. (par [0163] “an uncertainty level of the expected angle performed by measuring an incident angle of a strongest path of the reference signal, or the UAOA may be obtained by measuring an incident angle of a line-of-sight path of the reference signal; the UAOA obtained by measuring an incident angle of a second strongest path of the reference signal may be used as an alternative option”). Claim 39, 49, Yu further discloses the method of Claim 34, wherein the message comprises Sounding Reference Signal, SRS, configuration information for performance of at least one measurement by the second network node, and wherein at least one measurement comprises at least one of: an Uplink Relative Time of Arrival, UL-RTOA, measurement, an Uplink Round-Trip-Time, UL RTT, measurement, an Enhanced Cell-ID, e-CID, measurement, an AoA measurement, and an ZoA measurement (See par [0159] TABLE 1); an uplink AoA; an Uplink Sounding Reference Signal-Reference Signal Received Power; a time stamp associated with at least one measurement; and a quality level associated with at least one measurement (par [0163] “applied the UAOA obtained by measuring an incident angle of a second strongest path of the reference signal may be used as an alternative option”). Claim 40, 51, Yu further discloses the method of Claim 34, further comprising: receiving a request for the search window information from the second network node, and wherein the search window information is included in the message based on the request for the search window information (See par [0159] “parameters carried in the NRPPA message are shown in the following TABLE 1 with periodicity Search Window Parameters Optional Used to measure a relative uplink arrival time Measurement Quantities Optional Indicating the base station to measure “). Claim 42, the claim is rejected for the same reasons as set forth in claim 34. Claim 52, the claim is rejected for the same reasons as set forth in claim 34. Claim 53, the claim is rejected for the same reasons as set forth in claim 34. Allowable Subject Matter Claims 41, 50 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. Claims 41, 50, the claim limitations either alone or in combination failed to disclose wherein the response message comprises indicates that the second network node used a search window that is different from the search window information. 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 PHUOC HUU DOAN whose telephone number is (571)272-7920. The examiner can normally be reached 8:00AM - 4:00PM. 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, JEANETTE PARKER can be reached at 571-270-3647. 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. /PHUOC H DOAN/Primary Examiner, Art Unit 2646
Read full office action

Prosecution Timeline

Oct 04, 2023
Application Filed
Dec 29, 2025
Non-Final Rejection mailed — §102
Mar 30, 2026
Response Filed
Apr 16, 2026
Final Rejection mailed — §102
Jun 16, 2026
Response after Non-Final Action

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
92%
Grant Probability
99%
With Interview (+8.7%)
2y 3m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1130 resolved cases by this examiner. Grant probability derived from career allowance rate.

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