Prosecution Insights
Last updated: October 24, 2026
Application No. 17/918,851

METHOD AND DEVICE FOR DIRECT COMMUNICATION IN WIRELESS LAN SYSTEM

Final Rejection §103
Filed
Oct 13, 2022
Priority
Apr 14, 2020 — RE 10-2020-0045329 +2 more
Examiner
HAILE, AWET A
Art Unit
2474
Tech Center
2400 — Computer Networks
Assignee
Korea National University Of Transportation Industry-Academic Cooperation Foundation
OA Round
6 (Final)
80%
Grant Probability
Favorable
7-8
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
559 granted / 701 resolved
+21.7% vs TC avg
Strong +25% interview lift
Without
With
+24.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
38 currently pending
Career history
743
Total Applications
across all art units

Statute-Specific Performance

§101
6.5%
-33.5% vs TC avg
§103
62.1%
+22.1% vs TC avg
§102
11.7%
-28.3% vs TC avg
§112
12.4%
-27.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 701 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 Argument Applicant’s arguments with respect to claims 13-23 and 26-30 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 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. Claims 13, 15, 17, 19, 21, 23, 26, 28 and 30 are rejected under 35 U.S.C. 103 as being unpatentable over Oteri et al (US 2021/0243806 A1) in view of Das et al(US 2021/0045192 A1). Regarding claim 13, Oteri ‘806 teaches, a method for operating an access point in a wireless local area network ([0101]-[0102] and Figs. 9-10, a method of communicating AP with WTRUs is disclosed), the method comprising: performing a channel access procedure([0101], [0105], [0106] and Figs. 9, 10, AP performing channel access by transmitting RTS stations); obtaining a transmit opportunity (TXOP) based on the channel access procedure ([0101], [0105], [0106] and Figs. 9, 10, configuring full duplex TXOP by transmitting MU-RTS frame to WTRUs); and transmitting a trigger frame to a first station ([0101], Claim 1, AP remitting trigger frame to WTRUs in order to communicate with the WTRU within the TXOP), wherein the trigger frame includes first information on the first station([0101], [0109], [011] and Figs. 9-11, AP transmitting trigger frame that includes the identifier of the target WTRU(first station)). Oteri ‘806 does not explicitly teach, transmitting a trigger frame to a first station to indicate a time period that is allocated to the first station within the obtained TXOP, the trigger frame includes, second information indicating allocation of the time period within the obtained TXOP to the first station for transmission of data by the first station, and wherein the time period is used for data transmission by the first station to at least one of the access point or a second station in the time period. Das ‘192 teaches, transmitting a trigger frame to a first station to indicate a time period that is allocated to the first station within the obtained TXOP([0009], [0019], [0020] and Figs. 1-3, the AP transmitting a DiL-A trigger frame, acting as a trigger frame to a Triggered Direct(TD) station(first station). The trigger frame allocates time to the TD STA for direct link transmission, where the allocated time is up to the remaining duration of the TXOP) the trigger frame includes, second information indicating allocation of the time period within the obtained TXOP to the first station for transmission of data by the first station([0009], [0012], [0020] and Figs. 2-3, the DiL-A trigger frame schedules a specific TD STA(the first station) for transmission. The DiL-A frame includes allocation information that allocates a specific amount of time within the TXOP for the TD STA to send data), and wherein the time period is used for data transmission by the first station to at least one of the access point or a second station in the time period([0009], [0019], [0020] and Figs. 1-3, the allocated time period within the TXOP is used by the TD STA(the first station) to send a frame comprising data directly to a TD peer STA(second station)). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the communication system of Oteri ‘806 by incorporating the teaching of Das ‘192, since such modification would enable an access point to control degree of P2P transmission using trigger based operation, as suggested by Das ‘192([0003]). Regarding claim 15, the combination of Oteri ‘806 and Das ‘192 teaches all of the claim limitations, Oteri ‘806 further teaches, wherein the trigger frame comprises a multi-user-request-to-send (MU-RTS) frame ([0101]-[0103], [0105], [0106] and Figs. 9-11, the AP transmitting MU-RTS frame to the WTRU in order to configure full duplex TXOP), wherein the MU-RTS frame includes allocation information([0109], [0110] and Fig. 9-10, MU-RTS for indicating allocation information to the WTRU). Das ‘192 teaches, indicating that the time period is a portion of the obtained TXOP([0009], [0012], [0020] and Figs. 2-3, the DiL-A trigger frame schedules a specific TD STA(the first station) for transmission. The DiL-A frame includes allocation information that allocates a specific amount of time within the TXOP for the TD STA to send data), and wherein, during the time period, the first station is allowed to transmit data to the second station([0009], [0019], [0020] and Figs. 1-3, the allocated time period within the TXOP is used by the TD STA(the first station) to send a frame comprising data directly to a TD peer STA(second station)). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the communication system of Oteri ‘806 by incorporating the teaching of Das ‘192, since such modification would enable an access point to control degree of P2P transmission using trigger based operation, as suggested by Das ‘192([0003]). Regarding claim 17, the combination of Oteri ‘806 and Das ‘192 teaches all of the claim limitations above, Oteri ‘806 further teaches, receiving a clear to send (CTS) frame in response to the MU-RTS frame from the first station ([0101]-[0103], [0105], [0113] and Figs. 9-10, AP receiving CTS frame from the WTRU2 in response transmitting the MU-RTS frame). Regarding claims 19 and 26, Oteri ‘806 teaches, a first station in a wireless local area network ([0034], [0101]- [0103] and Figs. 1B, 9-10, WTRU 102), the first station comprising: a processor, ([0034], [0101]-[0103] and Figs. 1B, 9-10, WTRU comprising processor 118) wherein the processor causes the first station to identify transmit opportunity (TXOP) configured by an access point based on a channel access procedure by an access point ( [0101], [0105], [0106] and Figs. 9, 10, WTRU identifying full duplex TXOP by receiving MU-RTS frame from the AP), receive, from the access point, trigger frame( [0101], Claim 1, WTRU receiving from the AP, trigger frame in order to communicate with the WTRU within the TXOP), wherein the trigger frame includes first information indicating the first station ([0101], [0109], [011] and Figs. 9-11, AP transmitting trigger frame that includes the identifier of the target WTRU(first station)). Oteri ‘806 does not explicitly teach, a trigger frame to indicate a time period that is allocated to the first station within the obtained TXOP, and transmit, to at least one of the access point or a second station, data in the time period, wherein the trigger frame includes second information on allocation of the time period within the obtained TXOP to the first station for transmission of data by the first station. Das ‘192 teaches, a trigger frame to indicate a time period that is allocated to the first station within the obtained TXOP ([0009], [0019], [0020] and Figs. 1-3, the Triggered Direct(TD) station(first station). Receiving from the AP a DiL-A trigger frame, acting as a trigger frame. The trigger frame allocates time to the TD STA for direct link transmission, where the allocated time is up to the remaining duration of the TXOP) and transmit, to at least one of the access point or a second station, data in the time period([0009], [0019], [0020] and Figs. 1-3, the allocated time period within the TXOP is used by the TD STA(the first station) to send a frame comprising data directly to a TD peer STA(second station)), wherein the trigger frame includes second information on allocation of the time period within the obtained TXOP to the first station for transmission of data by the first station([0009], [0012], [0020] and Figs. 2-3, the DiL-A trigger frame schedules a specific TD STA(the first station) for transmission. The DiL-A frame includes allocation information that allocates a specific amount of time within the TXOP for the TD STA to send data). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the communication system of Oteri ‘806 by incorporating the teaching of Das ‘192, since such modification would enable an access point to control degree of P2P transmission using trigger based operation, as suggested by Das ‘192([0003]). Regarding claims 21 and 28, the combination of Oteri ‘806 and Das ‘912 teaches all of the claim limitations, Oteri ‘806 further teaches, wherein the trigger frame comprises a multi-user-request to send a multi-user-request-to-send (MU-RTS) frame ([0101]-[0103], [0105], [0106] and Figs. 9-11, the AP transmitting MU-RTS frame to the WTRU in order to configure full duplex TXOP) wherein the MU-RTS frame includes allocation information([0109], [0110] and Fig. 9-10, MU-RTS for indicating allocation information to the WTRU). Das ‘192 teaches, indicating that the time period is a portion of the obtained TXOP([0009], [0012], [0020] and Figs. 2-3, the DiL-A trigger frame schedules a specific TD STA(the first station) for transmission. The DiL-A frame includes allocation information that allocates a specific amount of time within the TXOP for the TD STA to send data), and wherein, during the time period, the first station is allowed to transmit data to the second station([0009], [0019], [0020] and Figs. 1-3, the allocated time period within the TXOP is used by the TD STA(the first station) to send a frame comprising data directly to a TD peer STA(second station)). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the communication system of Oteri ‘806 by incorporating the teaching of Das ‘192, since such modification would enable an access point to control degree of P2P transmission using trigger based operation, as suggested by Das ‘192([0003]). Regarding claims 23 and 30, the combination of Oteri ‘806 and Das ‘192 teaches all of the claim limitations above, Oteri ‘806 further teaches, transmitting a clear to send (CTS) frame in response to the MU-RTS frame to the access point ([0101]-[0103], [0105], [0113] and Figs. 9-10, AP receiving CTS frame from the WTRU2 in response transmitting the MU-RTS frame). Claims 14, 16, 18, 20, 22, 27 and 29 are rejected under 35 U.S.C. 103 as being unpatentable over Oteri ‘806 and Das ‘912 as applied to claims above, and further in view of Huang et al (US 2018/0262984 A1). Regarding claim 14, the combination of Oteri ‘806 and Das ‘912 teaches all of the claim limitations, Oteri ‘806 further teaches, receiving a clear to send (CTS) frame ([0101]- [0103], [0105], [0113] and Figs. 9-10, AP receiving CTS frame from the WTRU2 in response transmitting the MU-RTS frame). The combination of Oteri ‘806 and Das ‘912 does not explicitly teach, wherein the CTS frame includes time information of the TXOP. Huang ‘984 teaches, wherein the CTS frame includes time information of the TXOP ([0056], [0086], [0088] and Figs, 2, 7, the HEW station 104 transmitting a MU-CTS to the AP with a duration set to a duration based on the duration of the MU-RTS). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the combined communication system of Oteri ‘806 and Das ‘912 by incorporating the teaching of Huang ‘984, since such modification would provide efficient use of the resources of a wireless local-area network (WLAN) in order to provide bandwidth and acceptable response times to the users of the WLAN, as suggested by Huang ‘984([0002]-[0003]). Regarding claims 16, 22 and 29, the combination of Oteri ‘806 and Das ‘912 teaches all of the claim limitations except, wherein the allocation information is indicated by a duration field in the MU-RTS frame. Huang ‘984 teaches, wherein the allocation information is indicated by a duration field in the MU-RTS frame ([0073]-[0074], claim 11, and Fig. 11, the MU-RTS frame includes a specific duration filed used to allocate the time required for the transmission opportunity, which informs other stations to set their Network Allocation Vector(NAVs) Fig. 11 duration filed 112 ). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the combined communication system of Oteri ‘806 and Das 912 by incorporating the teaching of Huang ‘984, since such modification would provide efficient use of the resources of a wireless local-area network (WLAN) in order to provide bandwidth and acceptable response times to the users of the WLAN, as suggested by Huang ‘984([0002]-[0003]). Regarding claim 18, the combination of Oteri ‘806 and Das ‘912 teaches all of the claim limitations except, receiving a data frame from the first station in the period. Huang ‘984 teaches, receiving a data frame from the first station in the period ([0037] and Fig. 4, Ap receiving UL MU-DATA frame from a STA). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the combined communication system of Oteri ‘806 and Das ‘912 by incorporating the teaching of Huang ‘984, since such modification would provide efficient use of the resources of a wireless local-area network (WLAN) in order to provide bandwidth and acceptable response times to the users of the WLAN, as suggested by Huang ‘984([0002]-[0003]). Regarding claims 20 and 27, the combination of Oteri ‘806 and Das ‘912 teaches all of the claim limitations except, wherein the TXOP is configured based on a clear to send (CTS) frame, and wherein the CTS frame includes time information of the TXOP. Huang ‘984 teaches, wherein the TXOP is configured based on a clear to send (CTS) frame, and wherein the CTS frame includes time information of the TXOP ([0056], [0086], [0088] and Figs, 2, 7, the HEW station 104 transmitting a MU-CTS to the AP with a duration set to a duration based on the duration of the MU-RTS). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the combined communication system of Oteri ‘806 and Das ‘912 by incorporating the teaching of Huang ‘984, since such modification would provide efficient use of the resources of a wireless local-area network (WLAN) in order to provide bandwidth and acceptable response times to the users of the WLAN, as suggested by Huang ‘984([0002]-[0003]). 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 AWET A HAILE whose telephone number is (571)270-3114. The examiner can normally be reached Monday through Friday 8:30 AM - 4:30 PM 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, Michael Thier can be reached at (571)272-2832. 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. /AWET HAILE/Primary Examiner, Art Unit 2474
Read full office action

Prosecution Timeline

Show 7 earlier events
Jul 14, 2025
Non-Final Rejection mailed — §103
Oct 14, 2025
Response Filed
Jan 21, 2026
Final Rejection mailed — §103
Mar 23, 2026
Request for Continued Examination
Apr 09, 2026
Response after Non-Final Action
May 05, 2026
Non-Final Rejection mailed — §103
Aug 05, 2026
Response Filed
Oct 06, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12757246
METHOD FOR PERFORMING AIRTIME FAIRNESS CONTROL OF MESH NETWORK, AND ASSOCIATED APPARATUS
2y 10m to grant Granted Oct 06, 2026
Patent 12739073
APERIODIC REFERENCE SIGNAL MEASUREMENTS FOR MULTIPLE TRANSMISSION AND RECEPTION POINTS
3y 6m to grant Granted Sep 15, 2026
Patent 12739664
UPDATING A DISTRIBUTED UNIT IN A 5G VIRTUAL RADIO ACCESS NETWORK
2y 7m to grant Granted Sep 15, 2026
Patent 12733069
Control of Inactivity Timer Triggering for NR UE
3y 7m to grant Granted Sep 08, 2026
Patent 12733056
METHOD FOR TRANSMITTING MESSAGE INCLUDING TERMINAL INFORMATION IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS THEREFOR
2y 9m to grant Granted Sep 08, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

7-8
Expected OA Rounds
80%
Grant Probability
99%
With Interview (+24.8%)
3y 0m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 701 resolved cases by this examiner. Grant probability derived from career allowance 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