Prosecution Insights
Last updated: October 02, 2026
Application No. 18/392,442

PHYSICAL CELL IDENTIFIER MANAGEMENT

Final Rejection §103
Filed
Dec 21, 2023
Priority
Feb 27, 2023 — provisional 63/487,139
Examiner
KINCAID, LESTER G
Art Unit
2649
Tech Center
2600 — Communications
Assignee
Qualcomm Incorporated
OA Round
2 (Final)
62%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
70%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allowance Rate
47 granted / 76 resolved
At TC average
Moderate +8% lift
Without
With
+7.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
32 currently pending
Career history
110
Total Applications
across all art units

Statute-Specific Performance

§101
4.0%
-36.0% vs TC avg
§103
60.2%
+20.2% vs TC avg
§102
21.1%
-18.9% vs TC avg
§112
11.0%
-29.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 76 resolved cases

Office Action

§103
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 with respect to the claim(s) have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Claim Rejections - 35 USC § 103 The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Claim(s) 1, 3, 5-9, 15-19, 21, 23, 25-34 is/are rejected under 35 U.S.C. 103 as being unpatentable over Liu (2022/0377641) and Jin et al. (2021/0337394) hereinafter “Jin”. As to claim 1, Liu discloses A distributed network node for wireless communication, comprising: a processing system (130) that includes one or more processors (131) and one or more memories (132) coupled with the one or more processors, the processing system configured (see [0159], Fig 3, [0067]) to cause the distributed network node to: transmit, to a central network node, a restriction indication ([0147]: “PCI conflict report”) that indicates a restriction for a physical cell identifier (PCI) configuration of a cell that is served by the distributed network node, the distributed network node being associated with an integrated access and backhaul node, see [0060]; and receive, from the central network node, a PCI configuration ([0064]-[0066] … mobile IAB is configured with (re-sent) non-conflicting PCI) of the cell that is in accordance with the restriction indication. Also see [0068]. Liu is silent to yet in an analogous art Jin discloses wherein the restriction indication includes a first PCI value that is not to be used for the PCI configuration of the cell and a plurality of PCI values that are allowed to be used for the PCI configuration of the cell, and wherein the PCI configuration of the cell includes a PCI value that does not correspond to the first PCI value and that is in accordance with the plurality of PCI values that are allowed to be used for the PCI configuration of the cell. See [0020]: “…A central unit determines first information, where the first information includes at least one of the following: allowed physical cell identifier PCI information, unallowed PCI information, or PCI conflict information; and the central unit sends the first information to a distributed unit.” And [0021]: “In this embodiment of this application, the central unit sends the first information to the distributed unit, and the first information is used to indicate the allowed PCI information, the unallowed PCI information, or the PCI conflict information, so that the distributed unit determines a PCI of a serving cell of the distributed unit based on the first information. In this way, a PCI allocation and optimization solution can be provided, to improve PCI allocation efficiency.”. Also see Fig 6. Before the effective filing date of the instant invention it would have been obvious to one of ordinary skill in the art to modify Liu wherein the restriction indication includes a first PCI value that is not to be used for the PCI configuration of the cell and a plurality of PCI values that are allowed to be used for the PCI configuration of the cell, and wherein the PCI configuration of the cell includes a PCI value that does not correspond to the first PCI value and that is in accordance with the plurality of PCI values that are allowed to be used for the PCI configuration of the cell, as taught by Jin for the purpose of improving efficiency. As to claim 3. (Currently Amended) The combination of Liu and Jin provide for the distributed network node of claim 1, Jin discloses wherein the restriction indication includes a plurality of PCI values that are not to be used for the PCI configuration of the cell, and wherein the PCI configuration includes PCI values that do not correspond with any of the plurality of PCI values identified in the restriction indication. See [0098]-[0099], [0112]. As to claims 5 & 6, the combination of Liu and Jin discloses The distributed network node (as applied above to claim 1), wherein the cell (claim 5) / a PCI value (claim 6) is indicated using a cell identifier. See [0105]-[0106]. As to claim 7, (Original) the combination of Liu and Jin discloses The distributed network node of claim 6, wherein, to cause the distributed network node to receive the PCI configuration of the cell, the processing system is configured to cause the distributed network node to receive a PCI configuration of the cell that includes another PCI value that is equal to the PCI value. See Figs 4-5 of Jin. As to claim 8, (Original) the combination of Liu and Jin discloses The distributed network node of claim 6, wherein, to cause the distributed network node to receive the PCI configuration of the cell, the processing system is configured to cause the distributed network node to receive a PCI configuration of the cell that includes another PCI value that is different than the PCI value. See Figs 4-5 of Jin. As to claim 9, (Original) the combination of Liu and Jin discloses The distributed network node of claim 5, wherein the cell identifier is a cell global identity. See Jin [0105]. As to claim 15, the combination of Liu and Jin provides for The distributed network node of claim 1, (inherently) wherein the processing system is further configured to cause the distributed network node to transmit, to the central network node, another restriction indication that includes an updated restriction for the PCI configuration of the cell. As to claim 16, the combination of Liu and Jin provides for The distributed network node of claim 15, is silent to wherein, to cause the distributed network node to transmit the other restriction indication, the processing system is configured to cause the distributed network node to transmit the other restriction indication in accordance with the distributed network node adding or deleting another cell having a PCI value associated with the updated restriction. The examiner takes official notice that before the effective filing date of the instant invention it was well known in the art to update a network in real time when adding or deleting another cell and that at the minimum such would result in the detection and transmission as applied above. As to claim 17, the combination of Liu and Jin provides for The distributed network node of claim 15, is silent to wherein, to cause the distributed network node to transmit the other restriction indication, the processing system is configured to cause the distributed network node to transmit the other restriction indication in accordance with the distributed network node activating or deactivating another cell having a PCI value associated with the updated restriction. The examiner takes official notice that before the effective filing date of the instant invention it was well known in the art to update a network in real time when activating or deactivating another cell and that at the minimum such would result in the detection and transmission as applied above. As to claim 18, the combination of Liu and Jin provides for The distributed network node of claim 1, to (inherently) cause the distributed network node to transmit the other restriction indication, the processing system is configured to cause the distributed network node to transmit the other restriction indication in accordance with the distributed network node reconfiguring a PCI value for another cell that is served by the distributed network node. As to claim 19, the combination of Liu and Jin provides for The distributed network node of claim 1, wherein, to cause the distributed network node to transmit the restriction indication that indicates the restriction for the PCI configuration of the cell, the processing system is configured to cause the distributed network node to transmit a restriction indication that (inherently) indicates a restriction for a PCI configuration of a frequency resource, wherein the cell is associated with the frequency resource. As to claim 21, Liu discloses A central network node (see [0046]: (“CU” 120 of “CU-DU in an IAB system”, Fig 3) for wireless communication, comprising: a processing system (see [0158]: Fig 12) that includes one or more processors (121) and one or more memories (122) coupled with the one or more processors, the processing system configured to cause the central network node to: receive (see [0147]: PCI conflict report), from a distributed network node associated with an integrated access and backhaul node, a restriction indication that indicates a restriction for a physical cell identifier (PCI) configuration of a cell that is served by the distributed network node (see [0060]; and transmit, (see [0064]-[0066]: “configuring” implies transmission given Fig 11) to the distributed network node, a PCI configuration of the cell that is in accordance with (“selecting a PCI that does not conflict with a PCI of the first cell”) the restriction indication. Liu is silent to yet in an analogous art Jin discloses wherein the restriction indication includes a first PCI value that is not to be used for the PCI configuration of the cell and a plurality of PCI values that are allowed to be used for the PCI configuration of the cell, and wherein the PCI configuration of the cell includes a PCI value that does not correspond to the first PCI value and that is in accordance with the plurality of PCI values that are allowed to be used for the PCI configuration of the cell. See [0020]: “…A central unit determines first information, where the first information includes at least one of the following: allowed physical cell identifier PCI information, unallowed PCI information, or PCI conflict information; and the central unit sends the first information to a distributed unit.” And [0021]: “In this embodiment of this application, the central unit sends the first information to the distributed unit, and the first information is used to indicate the allowed PCI information, the unallowed PCI information, or the PCI conflict information, so that the distributed unit determines a PCI of a serving cell of the distributed unit based on the first information. In this way, a PCI allocation and optimization solution can be provided, to improve PCI allocation efficiency.”. Before the effective filing date of the instant invention it would have been obvious to one of ordinary skill in the art to modify Liu wherein the restriction indication includes a first PCI value that is not to be used for the PCI configuration of the cell and a plurality of PCI values that are allowed to be used for the PCI configuration of the cell, and wherein the PCI configuration of the cell includes a PCI value that does not correspond to the first PCI value and that is in accordance with the plurality of PCI values that are allowed to be used for the PCI configuration of the cell, as taught by Jin for the purpose of improving efficiency. Claims 23 and 25-28 correspond to claims 3 and 5-8 respectively. Corresponding citations apply as above Claims 29, 31, & 32 and 30, 33, & 34 recite methods corresponding to the apparatus / nodes of claims 1, 5, & 23 and 21, 5, & 23 respectively. See above for corresponding claim mapping. Claim(s) 14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Liu and Jin as applied to claim 1 above, and further in view of Zhou et al. (2021/0345232), hereinafter “Zhou”. As to claim 14, (Currently Amended) the combination of Liu and Jin provides for The distributed network node of claim 1, is silent to yet in an analogous art Zhou discloses wherein the processing system is further configured to cause the distributed network node to transmit, on a shared frequency resource, a first synchronization signal block (SSB) that is in accordance with the PCI configuration (new / changed PCI) and a second SSB that is in accordance with a restricted PCI value (original / conflicting PCI). Before the effective filing date of the instant invention it would have been obvious to one or ordinary skill in the art to transmit, on a shared frequency resource, a first synchronization signal block (SSB) that is in accordance with the PCI configuration (new / changed PCI) and a second SSB that is in accordance with a restricted PCI value as taught by Zhou for the purpose of positioning. Claim(s) 4, 10, 12, 13, and 24 is/are rejected under 35 U.S.C. 103 as being unpatentable over Liu and Jin as applied to claim 1 above, and further in view of Lenovo (3GPP TSG-RAN WG3 Meeting #119 R3-230341, “PCI collision mitigation of mobile IAB-node mobility”, 2/17/2023. As to claim 4, Liu and Jin discloses The distributed network node of claim 1, is silent to yet in an analogous art Lenovo discloses wherein the restriction indication includes a plurality of PCI values that are allowed to be used for the PCI configuration of the cell, and wherein, to cause the distributed network node to receive the PCI configuration of the cell, the processing system is (inherently) configured to cause the distributed network node to receive a PCI configuration of the cell that is in accordance with a PCI value of the plurality PCI values that are allowed to be used for the PCI configuration of the cell. See Proposals 3 & 4. Before the effective filing date of the instant invention it would have been obvious to one or ordinary skill in the art to wherein the restriction indication includes a plurality of PCI values that are allowed to be used for the PCI configuration of the cell, and wherein, to cause the distributed network node to receive the PCI configuration of the cell, the processing system is configured to cause the distributed network node to receive a PCI configuration of the cell that is in accordance with a PCI value of the plurality PCI values that are allowed to be used for the PCI configuration of the cell for the purpose of optimization. Claim 24 corresponds to claim 4, see corresponding citations as applied above. As to claim 10, Liu and Jin discloses The distributed network node of claim 1, is silent to yet in an analogous art Lenovo discloses wherein, to cause the distributed network node to transmit the restriction indication to the central network node, the processing system is configured to cause the distributed network node to transmit the restriction indication to the central network node in accordance with transmitting an indication of a restricted PCI value to another cell. See 7.8 wherein its known to additionally notify IAB-donor-CU. Before the effective filing date of the instant invention it would have been obvious to one or ordinary skill in the art to modify Liu to cause the node to transmit in accordance with transmitting an indication of a restricted PCI value to another cell for the purpose of system optimization and/or handoff notification / preparation. As to claim 12, the combination of Liu, Jin, and Lenovo discloses The distributed network node of claim 10, wherein the other cell is associated with another central network node, wherein, to cause the distributed network node to transmit the restriction indication to the central network node, the processing system is configured to cause the distributed network node to transmit the restriction indication in accordance with transmitting an indication of the other cell to the other central network node. (See Lenovo: 7.8 wherein its known to additionally notify IAB-donor-CU). As to claim 13, the combination of Liu, Jin, and Lenovo disclose The distributed network node of claim 10, wherein the other cell is associated with another central network node (IAB-donor-CU), wherein, to cause the distributed network node to transmit the restriction indication to the central network node, the processing system is configured to cause the distributed network node to transmit the restriction indication in accordance with an indication that the other central network node has activated the other cell. The examiner takes official notice that before the effective filing date of the instant application it would known to transmit/receive an activation indication and therefore before the effective filing date of the instant application it would have been obvious to one of ordinary skill in the art to cause the distributed network node to transmit the restriction indication in accordance with an indication that the other central network node has activated the other cell to avoid interference. Claim(s) 11 is/are rejected under 35 U.S.C. 103 as being unpatentable over Liu, Jin, and Lenovo as applied to claim 10 above, and further in view of Noh et al. (2022/0232655) hereinafter “Noh”. As to claim 11, the combination of Liu, Jin, and Lenovo discloses The distributed network node of claim 10, is silent to yet in an analogous art Noh discloses wherein the cell is associated with a first frequency carrier and the other cell is associated with a second frequency carrier, wherein the first frequency carrier at least partially overlaps with the second frequency carrier, (see [0395]-[0399] for DC-CA, such cooperation is necessary) and wherein, to cause the distributed network node to transmit the restriction indication to the central network node, the processing system is configured to cause the distributed network node to transmit the restriction indication in accordance with the first frequency carrier overlapping with the second frequency carrier. Before the effective filing date of the instant invention it would have been obvious to one or ordinary skill in the art to cause the distributed network node to transmit the restriction indication in accordance with the first frequency carrier overlapping with the second frequency carrier for the purpose of avoiding interference in DC-CA embodiments. Claim(s) 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Liu and Jin as applied to claim 1 above, and further in view of Kim et al. (2025/0150874). As to claim 20, Liu and Jin discloses The distributed network node of claim 1, wherein, to cause the distributed network node to transmit the restriction indication, the processing system is configured to cause the distributed network node to transmit the restriction indication in accordance with receiving another PCI configuration of the cell (inherently - nothing to prevent such), is silent to yet in an analogous art Kim discloses and in accordance with rejecting the other PCI configuration or indicating a failure to apply the other PCI configuration. See [0407]-[-408] Kim teaches to send a rejection message upon receiving a conflicting configuration message. Before the effective filing date of the instant invention it would have been obvious to one or ordinary skill in the art to transmit the restriction indication in accordance with rejecting the other PCI configuration or indicating a failure to apply the other PCI configuration as taught by Kim for the purpose of allowing notifications. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 LESTER KINCAID whose telephone number is (571)272-7922. The examiner can normally be reached M-Th: 7-5. 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, Yuwen Pan can be reached at 571-272-7855. 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. LESTER G. KINCAID Primary Patent Examiner Art Unit 2649 /LESTER G KINCAID/Primary Examiner, Art Unit 2649
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Prosecution Timeline

Show 2 earlier events
May 01, 2026
Interview Requested
May 11, 2026
Examiner Interview Summary
May 11, 2026
Applicant Interview (Telephonic)
May 22, 2026
Response Filed
Aug 18, 2026
Final Rejection mailed — §103
Sep 25, 2026
Interview Requested
Oct 01, 2026
Examiner Interview Summary
Oct 01, 2026
Applicant Interview (Telephonic)

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

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Prosecution Projections

3-4
Expected OA Rounds
62%
Grant Probability
70%
With Interview (+7.7%)
2y 8m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 76 resolved cases by this examiner. Grant probability derived from career allowance rate.

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