Prosecution Insights
Last updated: April 19, 2026
Application No. 18/613,900

TECHNIQUES FOR ON-DEMAND SYNCHRONIZATION SIGNAL BLOCK CONFIGURATION AND TRIGGER FOR SECONDARY CELL ACTIVATION

Non-Final OA §103
Filed
Mar 22, 2024
Examiner
SAMPAT, RUSHIL PARIMAL
Art Unit
2469
Tech Center
2400 — Computer Networks
Assignee
Qualcomm Incorporated
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
92%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
286 granted / 327 resolved
+29.5% vs TC avg
Minimal +5% lift
Without
With
+4.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
29 currently pending
Career history
356
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
58.5%
+18.5% vs TC avg
§102
23.5%
-16.5% vs TC avg
§112
14.9%
-25.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 327 resolved cases

Office Action

§103
DETAILED ACTION Claim(s) 1-20 are presented 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 U.S.C. § 103 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. Claim(s) 1-5, 7, 10, 11 and 13-20 are rejected under 35 U.S.C. § 103 as being unpatentable over Si et al. (US 2025/0063475 A1; also see provisional 63/532,816: fig. 6 “UE procedure for distinguishing on-demand SS/PBCH block) hereinafter “Si ‘475” in view of Si et al. (US 2025/0267601 A1; also see provisional 63/553,854: fig. 5 “illustration of on-demand SSB for RRM measurement”) hereinafter “Si ‘601”. Regarding Claims 1 and 20, Si ‘475 discloses an apparatus for wireless communication at a user equipment (UE) [see fig. 3, pg. 4, ¶48 lines 1-6, a user equipment (UE)], comprising: one or more memories [see fig. 3, pg. 4, ¶48 lines 1-6, a memory storing an operating system (OS)]; and one or more processors [see fig. 3, pg. 4, ¶48 lines 1-6, a processor], coupled to the one or more memories [see fig. 3, pg. 4, ¶48 lines 1-6, in communication with the memory], configured to cause the UE to [see fig. 3, pg. 4, ¶48 lines 1-6, execute the operating system (OS) stored in the memory to]: identify a pattern for an on-demand synchronization signal block (SSB) [see fig. 8: Step “802”, pg. 10, ¶190 lines 1-5, the UE determines whether the received SSB is an on-demand SSB or not]; and receiving the on-demand SSB in accordance with the pattern [see fig. 8: Step “803”, pg. 10, ¶190 lines 1-5, the UE receives on-demand SIB1 if the received SSB is an on-demand SSB]. Although Si ‘475 discloses identifying a pattern for an on-demand synchronization signal block (SSB), Si ‘475 does not explicitly teach “identifying the pattern is in association with a secondary cell activation”; and “activating a secondary cell in accordance with the on-demand SSB”. However Si ‘601 discloses identifying a pattern for an on-demand synchronization signal block (SSB) [see fig. 6, pg. 6, ¶77 lines 1-4, on-demand SS/PBCH block (SSB) is used for measurement], wherein identifying the pattern is in association with a secondary cell activation [see fig. 6, pg. 6, ¶77 lines 1-4, e.g., radio resource management (RRM) measurement and/or layer 1 (L1) measurement, e.g., on a SCell]; receiving the on-demand SSB in accordance with the pattern [see fig. 6, pg. 6, ¶79 lines 1-11; ¶80 lines 1-11, when the UE receives the configuration, the UE expects on-demand SSB for measurement is transmitted according to the configuration, and the UE performs measurement based on the on-demand SSB, potentially with a time domain delay]; and activating a secondary cell in accordance with the on-demand SSB [see fig. 6, pg. 6, ¶82 lines 1-10; ¶84 lines 1-13, the UE is further provided with an indication on activation and/or deactivation of the on-demand SSB, and the UE expects the transmission of on-demand SSB from the gNB on the SCell, and/or performs measurement based on the on-demand SSB after receiving the indication that indicates the activation of the on-demand SSB, potentially with a time domain delay]. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to provide “identifying the pattern is in association with a secondary cell activation”; and “activating a secondary cell in accordance with the on-demand SSB” as taught by Si ‘601 in the system of Si ‘475 to meet high growth in mobile data traffic, support new application deployments, and improve radio interface efficiency and coverage [see Si ‘601, pg. 1, ¶3 lines 9-12]. Regarding Claim 2, The combined system of Si ‘475 and Si ‘601 discloses the apparatus of claim 1. Si ‘475 further discloses wherein the pattern for the on-demand SSB indicates: a starting offset for the on-demand SSB [see pg. 10, ¶192 lines 1-5, a physical random access channel (PRACH) occasion in a PRACH slot is valid if it does not precede an on-demand SS/PBCH block in the PRACH slot and starts at least Ngap symbols after a last SS/PBCH block reception symbol in the on-demand SS/PBCH block]. Regarding Claim 3, The combined system of Si ‘475 and Si ‘601 discloses the apparatus of claim 1. Si ‘475 further discloses wherein the one or more processors are further configured to cause the UE to receive configuration information indicating one or more patterns [see pg. 12, ¶218 lines 1-9, the transmission of the on-demand SS/PBCH block is indicated to the UE by the DL trigger for the on-demand SS/PBCH block], wherein the pattern is one of the one or more patterns [see pg. 12, ¶218 lines 1-9, and the UE applies example behavior to avoid collision with on-demand SS/PBCH block (e.g., according to example in this disclosure) if the UE receives the DL trigger]. Regarding Claim 4, The combined system of Si ‘475 and Si ‘601 discloses the apparatus of claim 1. Si ‘475 further discloses wherein the one or more processors, to cause the UE to identify the pattern [see fig. 8: Step “802”, pg. 10, ¶190 lines 1-5, the UE determines whether the received SSB is an on-demand SSB or not], are configured to cause the UE to receive an indication of the pattern [see fig. 8: Step “801”, pg. 10, ¶190 lines 1-5, the UE receives an SSB]. Regarding Claim 5, Si ‘475 discloses the apparatus of claim 4. Si ‘475 does not explicitly teach wherein the one or more processors, to cause the UE to receive the indication of the pattern, are configured to “cause the UE to receive a secondary cell activation command indicating the pattern”. However Si ‘601 discloses to cause the UE to receive the indication of the pattern [see fig. 6, pg. 6, ¶82 lines 1-10; ¶84 lines 1-13, the UE is further provided with an indication on activation and/or deactivation of the on-demand SSB], are configured to cause the UE to receive a secondary cell activation command indicating the pattern [see fig. 6, pg. 6, ¶82 lines 1-10; ¶84 lines 1-13, and the UE expects the transmission of on-demand SSB from the gNB on the SCell, and/or performs measurement based on the on-demand SSB after receiving the indication that indicates the activation of the on-demand SSB, potentially with a time domain delay]. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to provide “cause the UE to receive a secondary cell activation command indicating the pattern” as taught by Si ‘601 in the system of Si ‘475 for the same motivation as set forth in claim 1. Regarding Claim 7, Si ‘475 discloses the apparatus of claim 1. Si ‘475 does not explicitly teach wherein the one or more processors are further configured to “cause the UE to transmit a measurement report regarding the on-demand SSB”. However Si ‘601 discloses cause the UE to transmit a measurement report regarding the on-demand SSB [see fig. 6, pg. 6, ¶82 lines 1-10; ¶84 lines 1-13, the configuration for measurement based on SSB (e.g., either in system information or dedicated RRC parameter) includes a configuration on the measurement report for the measurement based on the on-demand SSB(s) (e.g., configuration of time, and/or frequency, and/or power, and/or spatial information of the measurement report)]. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to provide “cause the UE to transmit a measurement report regarding the on-demand SSB” as taught by Si ‘601 in the system of Si ‘475 for the same motivation as set forth in claim 1. Regarding Claim 10, The combined system of Si ‘475 and Si ‘601 discloses the apparatus of claim 1. Si ‘475 further discloses wherein the one or more processors, to cause the UE to identify the pattern [see fig. 8: Step “802”, pg. 10, ¶190 lines 1-5, the UE determines whether the received SSB is an on-demand SSB or not], are configured to cause the UE to transmit an indication of the pattern [see pg. 11, ¶211 lines 1-4, the UE transmits PUSCH, PUCCH, or PRACH in a slot, if the transmission overlaps with any symbol in an on-demand SS/PBCH block]. Regarding Claim 11, The combined system of Si ‘475 and Si ‘601 discloses the apparatus of claim 10. Si ‘475 further discloses wherein the one or more processors, to cause the UE to transmit the indication of the pattern [see pg. 11, ¶212 lines 1-3, the UE transmits SRS in a set of symbols in a slot, if the transmission overlaps with any symbol in an on-demand SS/PBCH block], are configured to cause the UE to transmit the indication of the pattern prior to receiving a secondary cell activation command associated with activating the secondary cell [see pg. 11, ¶211 lines 1-4, the UE transmits PUSCH, PUCCH, or PRACH in a slot, if the transmission overlaps with any symbol in an on-demand SS/PBCH block]. Regarding Claim 13, The combined system of Si ‘475 and Si ‘601 discloses the apparatus of claim 1. Si ‘475 further discloses wherein the one or more processors, to cause the UE to receive the on-demand SSB [see fig. 8: Step “803”, pg. 10, ¶190 lines 1-5, the UE receives on-demand SIB1 if the received SSB is an on-demand SSB], are configured to cause the UE to receive the on-demand SSB as a trigger to activate the secondary cell [see pg. 12, ¶218 lines 1-9, the transmission of the on-demand SS/PBCH block is indicated to the UE by the DL trigger for the on-demand SS/PBCH block]. Regarding Claim 14, The combined system of Si ‘475 and Si ‘601 discloses the apparatus of claim 1. Si ‘475 further discloses wherein the one or more processors, to cause the UE to receive the on-demand SSB [see fig. 8: Step “803”, pg. 10, ¶190 lines 1-5, the UE receives on-demand SIB1 if the received SSB is an on-demand SSB], are configured to cause the UE to perform synchronization using the on-demand SSB [see pg. 12, ¶218 lines 1-9, and the UE applies example behavior to avoid collision with on-demand SS/PBCH block (e.g., according to example in this disclosure) if the UE receives the DL trigger]. Regarding Claim 15, Si ‘475 discloses the apparatus of claim 1. Si ‘475 does not explicitly teach wherein the one or more processors, to cause the UE to receive the on-demand SSB, are configured to “cause the UE to perform a Layer 1 or Layer 3 measurement using the on-demand SSB”. However Si ‘601 discloses cause the UE to perform a Layer 1 measurement using the on-demand SSB [see pg. 12, ¶218 lines 1-9, on-demand SSB for measurement (e.g., RRM measurement and/or layer 1 measurement) on SCell]. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to provide “cause the UE to perform a Layer 1 or Layer 3 measurement using the on-demand SSB” as taught by Si ‘601 in the system of Si ‘475 for the same motivation as set forth in claim 1. Regarding Claim 16, Si ‘475 discloses the apparatus of claim 1. Si ‘475 does not explicitly teach wherein the one or more processors, to cause the UE to receive the on-demand SSB, are configured to “cause the UE to perform automatic gain control using the on-demand SSB”. However Si ‘601 discloses cause the UE to perform automatic gain control using the on-demand SSB [see pg. 8, ¶130 lines 1-4, on-demand SS/PBCH block (SSB) is used at least for activation of a SCell (e.g., facilitating fast SCell activation including at least one of synchronization, or automatic gain control (AGC))]. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to provide “cause the UE to perform automatic gain control using the on-demand SSB” as taught by Si ‘601 in the system of Si ‘475 for the same motivation as set forth in claim 1. Regarding Claim 17, Si ‘475 discloses an apparatus for wireless communication at a network node [see fig. 2, pg. 3, ¶39 lines 1-4, a gNB], comprising: one or more memories [see fig. 2, pg. 3, ¶39 lines 1-4, a memory storing an operating system (OS)]; and one or more processors [see fig. 2, pg. 3, ¶39 lines 1-4, a processor], coupled to the one or more memories [see fig. 2, pg. 3, ¶39 lines 1-4, in communication with the memory], configured to cause the network node to [see fig. 2, pg. 3, ¶39 lines 1-4, execute the operating system (OS) stored in the memory to]: identify a pattern for an on-demand synchronization signal block (SSB) [see pg. 12, ¶217 lines 1-2, the UE is aware of the on-demand SS/PBCH block by explicit signalling from the gNB]; and transmit the on-demand SSB in accordance with the pattern [see pg. 12, ¶218 lines 1-9, the transmission of the on-demand SS/PBCH block is indicated to the UE by the DL trigger for the on-demand SS/PBCH block]. Although Si ‘475 discloses identifying a pattern for an on-demand synchronization signal block (SSB), Si ‘475 does not explicitly teach “identifying the pattern is in association with a secondary cell activation”; and “activating a secondary cell in accordance with the on-demand SSB”. However Si ‘601 discloses identify a pattern for an on-demand synchronization signal block (SSB) [see fig. 6, pg. 6, ¶77 lines 1-4, on-demand SS/PBCH block (SSB) is used for measurement], wherein identifying the pattern is in association with a secondary cell activation [see fig. 6, pg. 6, ¶77 lines 1-4, e.g., radio resource management (RRM) measurement and/or layer 1 (L1) measurement, e.g., on a SCell]; transmit the on-demand SSB in accordance with the pattern [see fig. 6, pg. 6, ¶79 lines 1-11; ¶80 lines 1-11, when the UE receives the configuration, the UE expects on-demand SSB for measurement is transmitted according to the configuration, and the UE performs measurement based on the on-demand SSB, potentially with a time domain delay]; and activate a secondary cell in accordance with the on-demand SSB [see fig. 6, pg. 6, ¶82 lines 1-10; ¶84 lines 1-13, the UE is further provided with an indication on activation and/or deactivation of the on-demand SSB, and the UE expects the transmission of on-demand SSB from the gNB on the SCell, and/or performs measurement based on the on-demand SSB after receiving the indication that indicates the activation of the on-demand SSB, potentially with a time domain delay]. Therefore, it would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to provide “identifying the pattern is in association with a secondary cell activation”; and “activating a secondary cell in accordance with the on-demand SSB” as taught by Si ‘601 in the system of Si ‘475 to meet high growth in mobile data traffic, support new application deployments, and improve radio interface efficiency and coverage [see Si ‘601, pg. 1, ¶3 lines 9-12]. Regarding Claim 18, The combined system of Si ‘475 and Si ‘601 discloses the apparatus of claim 17. Si ‘475 further discloses wherein the one or more processors are further configured to cause the network node to transmit configuration information indicating one or more patterns [see pg. 12, ¶218 lines 1-9, the transmission of the on-demand SS/PBCH block is indicated to the UE by the DL trigger for the on-demand SS/PBCH block], wherein the pattern is one of the one or more patterns [see pg. 12, ¶218 lines 1-9, and the UE applies example behavior to avoid collision with on-demand SS/PBCH block (e.g., according to example in this disclosure) if the UE receives the DL trigger]. Regarding Claim 19, The combined system of Si ‘475 and Si ‘601 discloses the apparatus of claim 17. Si ‘475 further discloses wherein the one or more processors, to cause the network node to identify the pattern [see pg. 12, ¶217 lines 1-2, the UE is aware of the on-demand SS/PBCH block by explicit signalling from the gNB], are configured to cause the network node to receive an indication of the pattern [see pg. 11, ¶211 lines 1-4, the UE transmits PUSCH, PUCCH, or PRACH in a slot, if the transmission overlaps with any symbol in an on-demand SS/PBCH block]. Allowable Subject Matter Claims 6, 8, 9 and 12 is/are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all 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. United States Patent Application Publication: Hu et al. (US 2025/0301407 A1); see fig. 5, pgs. 9-10, ¶85-¶93. Any inquiry concerning this communication or earlier communications from the examiner should be directed to RUSHIL P SAMPAT whose telephone number is (469) 295-9141. The examiner can normally be reached on Mon-Fri (8 AM - 5 PM). 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, Ian Moore can be reached on (571) 272-3085. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see https://ppair-my.uspto.gov/pair/PrivatePair. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /RUSHIL P. SAMPAT/Primary Examiner- TC 2400, Art Unit 2469
Read full office action

Prosecution Timeline

Mar 22, 2024
Application Filed
Feb 10, 2026
Non-Final Rejection — §103
Apr 10, 2026
Interview Requested
Apr 13, 2026
Applicant Interview (Telephonic)
Apr 16, 2026
Examiner Interview Summary

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Prosecution Projections

1-2
Expected OA Rounds
88%
Grant Probability
92%
With Interview (+4.8%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 327 resolved cases by this examiner. Grant probability derived from career allow rate.

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