Prosecution Insights
Last updated: April 19, 2026
Application No. 18/250,085

TRACKING REFERENCE SIGNAL CONFIGURATION

Non-Final OA §103
Filed
Apr 21, 2023
Examiner
RENNER, BRANDON M
Art Unit
2411
Tech Center
2400 — Computer Networks
Assignee
LENOVO (SINGAPORE) PTE. LTD.
OA Round
3 (Non-Final)
82%
Grant Probability
Favorable
3-4
OA Rounds
3y 3m
To Grant
99%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
758 granted / 930 resolved
+23.5% vs TC avg
Strong +21% interview lift
Without
With
+20.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
56 currently pending
Career history
986
Total Applications
across all art units

Statute-Specific Performance

§101
5.0%
-35.0% vs TC avg
§103
49.6%
+9.6% vs TC avg
§102
18.7%
-21.3% vs TC avg
§112
16.8%
-23.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 930 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 12/16/2025 has been entered. 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 (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 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. Claim(s) 1, 3, 5-14, 17, 19, 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Zhou et al. “Zhou” CN 113497690 in view of Sun et al. “Sun” US 2022/0322231 and further in view of Sabouri-Sichani et al. “Sabouri” US 2022/0338124. Regarding claims 1 and 12, Zhou teaches a method and apparatus for wireless communication, the apparatus comprising: a processor; and a memory coupled to the processor, the memory comprising instructions executable by the processor to cause the apparatus to: receive a tracking reference signal (TRS) configuration (the reference signals include configuration information; Page 11 step S102. Based on received TRS, the UE monitors the paging PDCCH; Page 18, S601 of Figure 6, 4th paragraph under “embodiment six”. Thus one can see there is configuration information being sent and since TRS signals are used, this is viewed as receiving TRS configuration); receive a TRS on a TRS occasion of a plurality of TRS occasions, wherein the plurality of TRS occasions is based on the TRS configuration (based on received TRS, the UE monitors the paging PDCCH. There are a plurality of paging occasions (PO) which are associated TRS; Page 18, S601 of Figure 6, 4th paragraph under “embodiment six”); and monitor a paging physical downlink control channel (PDCCH) on at least one paging PDCCH monitoring occasion based on the TRS (based on received TRS, the UE monitors the paging PDCCH; Page 18, S601 of Figure 6, 4th paragraph under “embodiment six”); wherein the at least one paging PDCCH monitoring occasion is associated with the TRS occasion (based on received TRS, the UE monitors the paging PDCCH. There are a plurality of paging occasions (PO) which are associated TRS; Page 18, S601 of Figure 6, 4th paragraph under “embodiment six”. Zhou does not expressly disclose the TRS information is transmit via a system information block; however, Sun teaches the TRS configuration information may be received in a SIB; Paragraphs 45 and 55. Thus it would have been obvious to one of ordinary skill in the art at the time of the effective filing to modify the teachings of Zhou to include sending TRS configuration information in SIB as taught by Sun. One would be motivated to make the modification such that the UE can determine when the network is expected to transmit TRS as taught by Sun; Paragraph 55. The prior art does not expressly disclose one paging PDCCH monitoring occasion is monitored per DRX cycle; however, Sabouri teaches the UE monitors only one paging occasion per DRX cycle for PDCCH; Paragraph 22. Thus it would have been obvious to one of ordinary skill in the art at the time of the effective filing to modify the teachings of the prior art to include monitoring only one PO per DRX cycle as taught by Sabouri. One would be motivated to make the modification for power saving as taught by Sabouri; Paragraph 22. Regarding claims 3 and 17, Zhou teaches receiving first information for a first NZP-CSI-RS of the TRS configuration and determining second information for a second NZP-CSI-RS of the TRS based on the first information (the received TRS includes 4 NZP-CSI-RS resources (this is viewed as first information). From this, the UE can determine whether a signal is valid (i.e. second information associated with second NZP CSI-RS); Page 18, S601 of Figure 6, 3rd paragraph under “embodiment six”. Any of the four NZP-CSI-RS can be viewed as the first or second NZP information. As these are all tied to the TRS, they are received/determined based on the TRS occasion). Regarding claims 5 and 19, Zhou teaches the paging PDCCH monitoring occasion and TRS are QCL with SSB (the TRS corresponding to the PO used for monitoring, is QCLed with the synchronization signal black (SSB); Page 18 fifth paragraph under “embodiment six”). Regarding claims 6 and 20, Zhou teaches assuming that the plurality of TRS occasions include a plurality of TRS transmitted by a network entity, wherein receiving the TRS comprises receiving the TRS on the TRS occasion based on the assumption the plurality of TRS occasions include the plurality of TRS transmitted by the network entity (**Examiner notes the claim is making an assumption of something, and not positively reciting this assumption is present in the application, therefore because the prior art has occasions and TRS, the Examiner is making the same assumption as claimed**. Based on received TRS, the UE monitors the paging PDCCH. There are a plurality of paging occasions (PO) which are associated TRS; Page 18, S601 of Figure 6, 4th paragraph under “embodiment six”. Here one can see there are a plurality of TRS associated with a plurality of paging occasions. The UE is receiving TRS from a base station (i.e. network entity)). Regarding claim 7, Zhou teaches receiving information indicating whether the TRS is transmitted on the TRS occasion by a network entity wherein the TRS includes receiving the TRS on the TRS occasion in response to the TRS being transmitted on the TRS occasion by the network entity (Based on received TRS, the UE monitors the paging PDCCH. There are a plurality of paging occasions (PO) which are associated TRS; Page 18, S601 of Figure 6, 4th paragraph under “embodiment six”. Here one can see the TRS is received from a base station (i.e. network entity) which is transmitted with respect to a paging occasion). Regarding claim 8, Zhou teaches receiving a paging power savings PDCCH configuration including a monitoring configuration and receiving a paging power saving PDCCH based on the paging power saving PDCCH monitoring configuration (paging indication information (i.e. paging power savings configuration) is received by a UE to indicate if it needs to monitor the PDCCH. The paging indication is for saving energy consumption by the UE; Page 17 first two paragraphs); The paging power saving PDCCH provides information of an availability of TRS (the purpose of the invention of Zhou is to determine if a reference signal (i.e. TRS), is valid (i.e. available)); Page 2 second to last paragraph. The RS being valid, or present means it can be measured; Page 10 second paragraph, therefore because the UE measures the reference signal in response to received pages/monitoring instructions, the paging information provides the availability of the TRS as claimed). Regarding claim 9, Zhou teaches TRS and paging are QCL (the TRS corresponding to the PO used for monitoring, is QCLed with the synchronization signal black (SSB); Page 18 fifth paragraph under “embodiment six”). Regarding claim 10, Zhou does not teach the TRS configuration is a cell specific TRS configuration; however, Sun teaches the TRS configuration information received is transmit from the currently camped cell (i.e. cell specific); Paragraph 45. Thus it would have been obvious to one of ordinary skill in the art at the time of the effective filing to modify the teachings of Zhou to include cell specific TRS configuration information as taught by Sun. One would be motivated to make the modification such that the UE can determine when the network is expected to transmit TRS as taught by Sun; Paragraph 45. Regarding claim 11, Zhou teaches the TRS is determined based on a periodicity (reference signals can be configured according to periodic signals; Page 11 first paragraph under S102 and page 16 first paragraph under step S501. Thus one can see the TRS/occasions are based on periodical information). Regarding claims 13, Zhou teaches a method at a network entity, the method comprising: Transmitting a tracking reference signal (TRS) configuration wherein a plrualtiy of TRS occasions is based on the TRS configuration (the reference signals include configuration information; Page 11 step S102. Based on received TRS, the UE monitors the paging PDCCH; Page 18, S601 of Figure 6, 4th paragraph under “embodiment six”. Thus one can see there is configuration information being sent and since TRS signals are used, this is viewed as receiving TRS configuration); transmitting a TRS on a TRS occasion of a plurality of TRS occasions, (based on received TRS, the UE monitors the paging PDCCH. There are a plurality of paging occasions (PO) which are associated TRS; Page 18, S601 of Figure 6, 4th paragraph under “embodiment six”); and transmitting data on a paging PDCCH on at least one paging PDCCH monitoring occasion based on TRS wherein the at least one paging PDCCH monitoring occasion is associated with the TRS occasion (based on received TRS, the UE monitors the paging PDCCH for data being transmit by the base station (i.e. network entity); Page 18, S601 of Figure 6, 4th paragraph under “embodiment six”. Thus one can see the paging occasion monitoring and TRS are closely related). Zhou does not expressly disclose the TRS information is transmit via a system information block; however, Sun teaches the TRS configuration information may be received in a SIB; Paragraphs 45 and 55. Thus it would have been obvious to one of ordinary skill in the art at the time of the effective filing to modify the teachings of Zhou to include sending TRS configuration information in SIB as taught by Sun. One would be motivated to make the modification such that the UE can determine when the network is expected to transmit TRS as taught by Sun; Paragraph 55. The prior art does not expressly disclose one paging PDCCH monitoring occasion is monitored per DRX cycle; however, Sabouri teaches the UE monitors only one paging occasion per DRX cycle for PDCCH; Paragraph 22. Thus it would have been obvious to one of ordinary skill in the art at the time of the effective filing to modify the teachings of the prior art to include monitoring only one PO per DRX cycle as taught by Sabouri. One would be motivated to make the modification for power saving as taught by Sabouri; Paragraph 22. Regarding claim 14, Zhou teaches transmitting first information for a first NZP-CSI-RS of the TRS configuration and determining second information for a second NZP-CSI-RS of the TRS based on the first information (the received TRS includes 4 NZP-CSI-RS resources (this is viewed as first information). From this, the UE can determine whether a signal is valid (i.e. second information associated with second NZP CSI-RS); Page 18, S601 of Figure 6, 3rd paragraph under “embodiment six”. Any of the four NZP-CSI-RS can be viewed as the first or second NZP information. As these are all tied to the TRS, they are received/determined based on the TRS occasion). Claim(s) 2 and 16 is/are rejected under 35 U.S.C. 103 as being unpatentable over Zhou in view of Sun in view of Sabouri and further in view of Lee et al. “Lee” US 2019/0215117. Regarding claims 2 and 16, Zhou teaches DRX; however, Zhou does not expressly disclose each paging frame of DRX is associated with the TRS occasion. Lee teaches TRS are received during a paging occasion for the UE in DRX mode; Paragraphs 174, 178, 240. Thus it would have been obvious to one of ordinary skill in the art at the time of the effective filing to modify the teachings of Zhou to include each paging frame of DRX is associated with the TRS occasion as taught by Lee. One would be motivated to make the modification such that the TRS can serve as a wake-up signal for the UE as taught by Lee; Paragraph 178. Claim(s) 4, 15, 18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Zhou in view of Sun in view of Sabouri and further in view of Xue et al. “Xue” US 2023/0100896. Regarding claims 4 and 18, Zhou does not expressly disclose the first information includes time domain, frequency domain, scrambling ID or a power control parameter; however, Xue teaches the se of TRS/CSI-RS to support UEs of different paging occasions. Further, Xue teaches NZP-CSI-RS includes time domain and frequency domain mapping, scrambling IDs and a power value; Table 1; Paragraphs 227-232. Thus it would have been obvious to one of ordinary skill in the art at the time of the effective filing to modify the teachings of Zhou to include the information includes time or frequency mapping, or a scrambling ID as taught by Xue. One would be motivated to make the modification such that the system has the proper configuration parameters as taught by Xue; Paragraph 226. Regrading claim 15, Zhou does not expressly disclose the first information includes time domain, frequency domain, scrambling ID or a power control parameter; however, Xue teaches the se of TRS/CSI-RS to support UEs of different paging occasions. Further, Xue teaches NZP-CSI-RS includes time domain and frequency domain mapping, scrambling IDs and a power value; Table 1; Paragraphs 227-232. Thus it would have been obvious to one of ordinary skill in the art at the time of the effective filing to modify the teachings of Zhou to include the information includes time or frequency mapping, or a scrambling ID as taught by Xue. One would be motivated to make the modification such that the system has the proper configuration parameters as taught by Xue; Paragraph 226. Response to Arguments Applicant’s arguments with respect to claim(s) 1-20 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BRANDON M RENNER whose telephone number is (571)270-3621. The examiner can normally be reached Monday-Friday 7am-5pm EST. 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, Derrick Ferris can be reached at (571)-272-3123. 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. /BRANDON M RENNER/Primary Examiner, Art Unit 2411
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Prosecution Timeline

Apr 21, 2023
Application Filed
Jun 03, 2025
Non-Final Rejection — §103
Jul 15, 2025
Interview Requested
Jul 28, 2025
Applicant Interview (Telephonic)
Jul 28, 2025
Examiner Interview Summary
Sep 05, 2025
Response Filed
Sep 12, 2025
Final Rejection — §103
Oct 20, 2025
Interview Requested
Oct 28, 2025
Examiner Interview Summary
Oct 28, 2025
Applicant Interview (Telephonic)
Nov 14, 2025
Response after Non-Final Action
Dec 16, 2025
Request for Continued Examination
Dec 31, 2025
Response after Non-Final Action
Mar 22, 2026
Non-Final Rejection — §103 (current)

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Prosecution Projections

3-4
Expected OA Rounds
82%
Grant Probability
99%
With Interview (+20.9%)
3y 3m
Median Time to Grant
High
PTA Risk
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