Prosecution Insights
Last updated: April 19, 2026
Application No. 18/020,327

WAKE-UP SIGNAL FRAME DESIGN

Final Rejection §102§103
Filed
Feb 08, 2023
Examiner
LO, DIANE LEE
Art Unit
2466
Tech Center
2400 — Computer Networks
Assignee
Rakuten Symphony Inc.
OA Round
2 (Final)
90%
Grant Probability
Favorable
3-4
OA Rounds
2y 3m
To Grant
98%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allow Rate
842 granted / 941 resolved
+31.5% vs TC avg
Moderate +8% lift
Without
With
+8.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
25 currently pending
Career history
966
Total Applications
across all art units

Statute-Specific Performance

§101
3.7%
-36.3% vs TC avg
§103
50.4%
+10.4% vs TC avg
§102
32.8%
-7.2% vs TC avg
§112
3.0%
-37.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 941 resolved cases

Office Action

§102 §103
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 . DETAILED ACTION Response to Amendment Examiner acknowledges Applicant's amendment filed on October 24, 2025. Claims 1, 7, 8, 14, 15 and 20 are amended. Claims 1-20 are currently pending consideration. Response to Arguments Applicant's arguments with respect to claim 1-20 have been considered but are moot in view of the new ground(s) of rejection. 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 – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 1, 2, 6, 8, 9, 13, 15 and 16 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Seok et al. (US 2019/0297575 A1). 1. Regarding claim 1, Seok teaches a wireless communication system comprising: a user equipment comprising a receiver and a wake up radio (WUR), wherein the WUR comprises an at least one WUR processor and an at least one WUR memory, wherein the at least one WUR memory is configured to store computer program code (Paragraph [0011] MU WUR packet), wherein the WUR is configured to receive, from an at least one cell station, a wake up signal (WUS) comprising a user frame and a system frame, wherein the user frame comprises a first preamble and a first data portion, and the system frame comprises a second preamble and a second data portion (Paragraph [0011] transmit packet legacy preamble followed by invalid wake-up signal along with preambles and wake-up signals destined to other STAs), and wherein the at least one WUR processor is configured to access the at least one WUR memory and, by executing the computer program code stored therein identify the WUS and activate the receiver (Paragraph [0011] transmit packet legacy preamble followed by invalid wake-up signal along with preambles and wake-up signals destined to other STAs). 2. Regarding claim 8, Seok teaches a method of generating a wake up signal (WUS) in a wireless communication system, the wireless communication system comprising a user equipment comprising a receiver and a wake up radio (WUR) (Paragraph [0011] MU WUR packet), the method performed by at least one processor and comprising: receiving, by the WUR from an at least one cell station, a wake up signal (WUS) comprising a user frame and a system frame, wherein the user frame comprises a first preamble and a first data portion, and the system frame comprises a second preamble and a second data portion (Paragraph [0011] transmit packet legacy preamble followed by invalid wake-up signal along with preambles and wake-up signals destined to other STAs); identifying, by the WUR, the WUS; and based on the identification of the WUS by the WUR, activating the receiver (Paragraph [0011] transmit packet legacy preamble followed by invalid wake-up signal along with preambles and wake-up signals destined to other STAs). 3. Regarding claim 15, Seok teaches a non-transitory computer readable medium having instructions stored therein (Figure 10 Paragraph [0063]), which when executed by a processor cause the processor to execute a method of generating a wake up signal (WUS), the method comprising: receiving, by the WUR from an at least one cell station, a wake up signal (WUS) comprising a user frame and a system frame, wherein the user frame comprises a first preamble and a first data portion, and the system frame comprises a second preamble and a second data portion (Paragraph [0011] transmit packet legacy preamble followed by invalid wake-up signal along with preambles and wake-up signals destined to other STAs); Identifying, by the WUR, the WUS; and based on the identification of the WUS by the WUR, activating the receiver (Paragraph [0011] transmit packet legacy preamble followed by invalid wake-up signal along with preambles and wake-up signals destined to other STAs). 4. Regarding claims 2, 9, and 16, Seok teaches wherein the system frame comprises one or more of an information on a cell ID, an information on a duty cycle of the WUS, a synchronization signal, and an information on a coding rate of the user frame (Seok, Paragraphs [0037] and [0038] duty cycle). 5. Regarding claims 6 and 13, Seok teaches, wherein the WUS is comprised of one of a plurality of On-Off-Key (OOK) waveform symbols and a plurality of frequency shift key (FSK) waveform symbols (Paragraphs [0035] and [0052] OOK modulation). Claim Rejections - 35 USC § 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. Claims 3, 7, 10, 14, 17 and 20 are rejected under 35 U.S.C. 103 as being unpatentable over Seok et al. (US 2019/0297575 A1) in view of Asterjadhi et al. (US 2019/0007901 A1). 6. Regarding claims 3, 10, and 17, Seok does not explicitly disclose wherein the user frame comprises an information on a portion of the WUS that should be disregarded by the WUR. Asterjadhi teaches wherein the user frame comprises an information on a portion of the WUS that should be disregarded by the WUR (Paragraphs [0012], [0166], and [0256] portion of the WUR frame may be omitted). It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to provide wherein the user frame comprises an information on a portion of the WUS that should be disregarded by the WUR as taught by Asterjadhi in the system of Seok for improved communicating with WUR devices see Paragraph [0005] of Asterjadhi. 7. Regarding claims 7, 14, and 20, Seok does not explicitly disclose wherein the at least one WUR processor is further configured to access the at least one WUR memory and, by executing the computer program code stored therein, identify a second cell station in communication with the WUR, and based on the identification of the second cell station activate the conventional receiver. Asterjadhi teaches wherein the at least one WUR processor is further configured to access the at least one WUR memory and, by executing the computer program code stored therein, identify a second cell station in communication with the WUR, and based on the identification of the second cell station activate the conventional receiver (Paragraph [0218] and [0240] paged ID). It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to provide wherein the at least one WUR processor is further configured to access the at least one WUR memory and, by executing the computer program code stored therein, identify a second cell station in communication with the WUR, and based on the identification of the second cell station activate the conventional receiver as taught by Asterjadhi in the system of Seok for improved communicating with WUR devices see Paragraph [0005] of Asterjadhi. Claims 4, 5, 11, 12, 18 and 19 are rejected under 35 U.S.C. 103 as being unpatentable over Seok et al. (US 2019/0297575 A1) in further view of Chu et al. (USPN 10,873,909 B1). 8. Regarding claims 4, 11, and 18, Seok does not explicitly disclose wherein a coding rate of the system frame is different than a coding rate of the user frame. Chu teaches wherein a coding rate of the system frame is different than a coding rate of the user frame (col 14. Lines 47- 67 length different, higher coding rate). It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to provide wherein a coding rate of the system frame is different than a coding rate of the user frame as taught by Chu in the system of Seok for supporting different MCS see Chu col. 14 lines 41-61. 9. Regarding claims 5, 12, and 19, Seok teaches wherein the first data portion comprises a control portion and a user data portion ((Paragraph [0011] transmit packet legacy preamble followed by invalid wake-up signal along with preambles and wake-up signals destined to other STAs). Seok does not explicitly disclose the control portion has a different coding rate than the user data portion, and the control portion comprises an information on the coding rate of the user data portion. Chu teaches the control portion has a different coding rate than the user data portion, and the control portion comprises an information on the coding rate of the user data portion (col 14. Lines 47- 67 length different, higher coding rate). It would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to provide the control portion has a different coding rate than the user data portion, and the control portion comprises an information on the coding rate of the user data portion as taught by Chu in the system of Seok for supporting different MCS see Chu col. 14 lines 41-61. 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 DIANE LEE LO whose telephone number is (571)270-1952. The examiner can normally be reached Monday - Friday 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, Faruk Hamza can be reached at (571)272-7969. 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. /DIANE L LO/Primary Examiner, Art Unit 2466
Read full office action

Prosecution Timeline

Feb 08, 2023
Application Filed
Jul 22, 2025
Non-Final Rejection — §102, §103
Oct 24, 2025
Response Filed
Mar 12, 2026
Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12598517
COMMUNICATION METHOD AND APPARATUS
2y 5m to grant Granted Apr 07, 2026
Patent 12593343
APPARATUS AND METHOD FOR PROCESSING SIDELINK RESOURCE REQUIRED FOR SIDELINK DRX OPERATION IN WIRELESS COMMUNICATION SYSTEM
2y 5m to grant Granted Mar 31, 2026
Patent 12592797
WAKE-UP SIGNAL WAVEFORM DESIGN
2y 5m to grant Granted Mar 31, 2026
Patent 12587872
USING ORCHESTRATORS FOR FALSE POSITIVE DETECTION AND ROOT CAUSE ANALYSIS
2y 5m to grant Granted Mar 24, 2026
Patent 12580710
METHOD AND APPARATUS FOR RESOURCE ALLOCATION
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
90%
Grant Probability
98%
With Interview (+8.5%)
2y 3m
Median Time to Grant
Moderate
PTA Risk
Based on 941 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month