Prosecution Insights
Last updated: July 17, 2026
Application No. 18/468,733

SIDELINK COMMUNICATION METHOD AND APPARATUS

Final Rejection §103
Filed
Sep 17, 2023
Priority
Apr 01, 2021 — CN 202110358251.7 +1 more
Examiner
IM, THEODORE
Art Unit
2413
Tech Center
2400 — Computer Networks
Assignee
Huawei Technologies Co., Ltd.
OA Round
2 (Final)
64%
Grant Probability
Moderate
3-4
OA Rounds
3m
Est. Remaining
82%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allowance Rate
7 granted / 11 resolved
+5.6% vs TC avg
Strong +18% interview lift
Without
With
+17.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
31 currently pending
Career history
55
Total Applications
across all art units

Statute-Specific Performance

§103
93.6%
+53.6% vs TC avg
§102
6.4%
-33.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 11 resolved cases

Office Action

§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 . Information Disclosure Statement The information disclosure statement (IDS) submitted on 02/03/2026 has been placed in the record and considered by the examiner. Response to Arguments Applicant’s arguments with respect to claims 1-20 have been considered but are moot in view of new grounds of rejection. 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. 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 1-20 are rejected under 35 U.S.C. 103 as being unpatentable over SELVANESAN et al. (US 2023/0319850 A1; hereinafter “SELVANESAN”), in view of Back et al. (US 12063665 B2; hereinafter “Back”), and further in view of Zhang et al. (US 2024/0171356 A1; hereinafter “Zhang”). Regarding claim 1, SELVANESAN teaches a sidelink (SL) communication method ([0023]-[0024]), comprising: receiving, by a second terminal (FIG. 2 (a) a second vehicle 154), first control information (FIG. 3 1st stage SCI 216) and first data from a first terminal (FIG. 2 (a) a first vehicle 152) ([0038] NR V2X uses resource pools including a physical sidelink control channel, PSCCH, and a physical sidelink shared channel, PSSCH. When a UE transmits a data packet in a transport block, TB, the symbols and the RBs include the PSCCH and the PSSCH, [0041] control information is transmitted to inform a receiving UE to successfully decode the data packet carried in the PSSCH), wherein the first control information (FIG. 3 1st stage SCI 216) comprises cast type indication information indicating SL groupcast transmission with negative acknowledgement (NACK) only feedback ([0055]-[0063] SCI format 2-A includes a cast type indicator, [0064]-[0072] SCI format 2-B is used when the transmission uses group cast HARQ feedback option 1, where the HARQ information includes only a NACK), and the first terminal and the second terminal are terminals in a same communication group (FIG. 2 (a) discloses a first vehicle 152 and a second vehicle 154 communicating over the same sidelink using a common sidelink resource configuration; [0064]-[0072] disclose groupcast transmission among a group of UEs, [0249]-[0252] a plurality of user devices, UEs, configured for a sidelink communication using a set of sidelink resources). However, SELVANESAN does not teach starting, by the second terminal, a first timer at a specified location after a hybrid automatic repeat request (HARQ) feedback resource corresponding to the first data, wherein a duration of the first timer indicates a minimum duration that elapses before SL resource scheduling information used for HARQ retransmission is expected to be received; and when the first timer expires, determining whether the second terminal successfully decodes the first data and detects a NACK on the HARQ feedback resource before the first timer expires; and only when it is determined that the second terminal successfully decodes the first data and has detected the NACK, starting, by the second terminal, a second timer with duration indicating maximum duration that elapses before the SL resource scheduling information used for HARQ retransmission is received. In an analogous art, Back teaches starting, by the second terminal, a first timer at a specified location after a hybrid automatic repeat request (HARQ) feedback resource corresponding to the first data ([Page 22 line 20] the RX UE starts an RTT timer (S1207), [Page 22 line 39] the RTT timer may be started based on PSFCH resources, [Page 22 line 46-48] For a MAC PDU where HARQ feedback is enabled, the time may be started based on PSFCH resources), wherein a duration of the first timer indicates a minimum duration that elapses before SL resource scheduling information used for HARQ retransmission is expected to be received ([Page 20 line 52-54] drx-HARQ-RTT-TimerSL (per HARQ process): Minimum duration time before an SL retransmission grant is predicted by a MAC entity); and starting, by the second terminal, a second timer with duration indicating maximum duration that elapses before the SL resource scheduling information used for HARQ retransmission is received ([Page 22 line 21-25] When the RTT timer expires, the RX UE may start the retransmission timer (S1209). Therefore, while the retransmission timer is running, the RX UE may wait for and receive PSSCH transmission (or retransmission) in the wake-up state (S1211), [Page 21 line 49-51] drx-RetransmissionTimerSL (per HARQ process): Maximum period until a grant for SL retransmission is received, [Page 22 line 29-31] when NACK information transmission is dropped, the RX UE may be allowed to start the SL DRX timer (e.g., retransmission timer, RTT timer, etc.)). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the RTT timer as taught by Back within the system of SELVANESAN. One would have been motivated to do so in order to improve the efficiency, reliability, economics and sustainability of the production and distribution of fuels such as electricity in an automated fashion with low delays (Back [Page 3 line 18-22]). However, the combination of SELVANESAN and Back does not teach when the first timer expires, determining whether the second terminal successfully decodes the first data and detects a NACK on the HARQ feedback resource before the first timer expires; and only when it is determined that the second terminal successfully decodes the first data and has detected the NACK. In an analogous art, Zhang teaches when the first timer expires, determining whether the second terminal successfully decodes the first data and detects a NACK on the HARQ feedback resource before the first timer expires; and only when it is determined that the second terminal successfully decodes the first data and has detected the NACK ([0142] discloses monitoring to identify an ACK or a NACK based on a timer duration and determining the NACK in response to the timer duration expiring before detecting the ACK, [0112] discloses that, for a same HARQ process, the UE assumes that the beam report is decoded successfully or not decoded successfully as a NACK). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the NACK as taught by Zhang within the system of SELVANESAN and Back. One would have been motivated to do so in order to improve handover latency and efficiency by increasing the usage of dynamic control signaling for user experience (Zhang [0003]). Regarding claim 2, SELVANESAN teaches the first SL process identification information comprises an SL process identifier, the cast type indication information, a source layer-1 (L1) identifier, and a destination L1 identifier ([0056] an HARQ process number, [0062] a cast type indicator, [0064]-[0072] SCI format 2-B may be used when the transmission uses group cast HARQ feedback option 1, where the HARQ information includes only a NACK, [0059] a source ID indicating the source of the transmission, [0060] a destination ID indicating the destination of the transmission). However, SELVANESAN does not teach wherein the first timer and the second timer are associated with first SL process identification information indicated by the first control information. In an analogous art, the combination of Back and Zhang, specifically Back teaches wherein the first timer and the second timer are associated with first SL process identification information indicated by the first control information (FIG. 12 First SCI S1201) ([Page 5-6 summary] discloses that, upon reception of first SCI, the RX UE determines ACK/NACK-related sidelink operation and starts an RTT timer or a retransmission timer; [Page 20 lines 49-54] the drx-HARQ-RTT-TimerSL and drx-RetransmissionTimerSL operate per HARQ process), Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the RTT timer as taught by Back within the system of SELVANESAN. One would have been motivated to do so in order to improve the efficiency, reliability, economics and sustainability of the production and distribution of fuels such as electricity in an automated fashion with low delays (Back [Page 3 line 18-22]). Regarding claim 3, the combination of SELVANESAN, Back and Zhang, specifically SELVANESAN teaches associating, by the second terminal, the first data with a first SL process in accordance with the SL process identifier included in the first control information (FIG. 3 1st stage SCI 216), wherein the first SL process is used to process the first data ([0056], [0065] disclose that the second-stage SCI includes an HARQ process number identifying a sidelink process, [0055] the second-stage SCI carries information regarding the HARQ procedure for processing the data). Regarding claim 4, the combination of SELVANESAN, Back and Zhang, specifically Back teaches when determining that the second terminal successfully decodes the first data and detects no NACK on the HARQ feedback resource, releasing the first SL process ([Page 23 line 4-16] discloses that, when the RX UE successfully receives/decodes desired information, the RX UE may not operate the retransmission timer, [Page 23 line 58-65] discloses that a related SL HARQ process buffer may be flushed when the SL DRX timer expires). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the RX UE as taught by Back within the system of SELVANESAN. One would have been motivated to do so in order to improve the efficiency, reliability, economics and sustainability of the production and distribution of fuels such as electricity in an automated fashion with low delays (Back [Page 3 line 18-22]). Regarding claim 5, the combination of SELVANESAN, Back and Zhang specifically SELVANESAN teaches when determining that the second terminal successfully decodes the first data, releasing the first SL process ([0041] the control information allows the receiving UE to successfully decode the data packet, [0055] the second-stage SCI carries information regarding the HARQ procedure for processing the data); receiving, by the second terminal, second data and second control information, wherein a cast type indicated by the second control information is groupcast transmission with NACK only feedback ([0055] the 2nd stage SCI is transmitted together with the payload in the PSSCH, [0064]-[0072] SCI format 2-B is used for groupcast HARQ feedback option 1 where the HARQ information includes only a NACK); associating, by the second terminal, the second data with a second SL process in accordance with second SL process identification information indicated by the second control information, wherein the second SL process is used to process the second data ([0056], [0065] the 2nd stage SCI includes an HARQ process number identifying a sidelink process, and the HARQ procedure is identified by an HARQ process number, [0055] the 2nd stage SCI carries information regarding the HARQ procedure for processing the data); and when the second terminal determines that the second data is retransmitted data of the first data, releasing the second SL process ([0057]; [0066] a new data indicator (NDI) in the 2nd stage SCI for indicating whether the transmission contains new data or retransmitted data, [0055] the 2nd stage SCI carries information regarding the HARQ procedure for identifying and decoding the data in the PSSCH, [0042] the first-stage SCI carries resource reservation period information for repetitive transmissions, thereby indicating that the SL process is bounded to a transmission cycle and is terminated when the retransmission cycle ends). Regarding claim 6, the combination of SELVANESAN, Back and Zhang, specifically SELVANESAN teaches determining, by the second terminal, that the first data is the last transmission when the first control information does not indicate a resource location of second control information for a data retransmission ([0042] the 1st stage SCI includes time resource assignment, frequency resource assignment, and a resource reservation period indicating repetitive resource reservation for future transmissions, [0048] the 1st stage SCI includes a parameter indicating the 2nd stage SCI format expected in the PSSCH, [0055] the 2nd stage SCI is transmitted in the PSSCH, and the resource location of the 2nd stage SCI is determined by the time and frequency resource assignment indicated in the 1st stage SCI, such that absence of any indicated future resource assignment implies that no subsequent PSSCH carrying second-stage SCI for retransmission is scheduled, and the received data corresponds to a last transmission). Regarding claim 7, the combination of SELVANESAN, Back and Zhang, specifically Back teaches wherein the first timer is an SL HARQ Round Trip Time (RTT) timer, and the second timer is a retransmission timer; or each of the first timer and the second timer is a discontinuous reception (DRX) timer ([Page 20 line 49-54] drx-RetransmissionTimerSL (per HARQ process): Maximum period until a grant for SL retransmission is received drx-HARQ-RTT-TimerSL (per HARQ process): Minimum duration time before an SL retransmission grant is predicted, [Page 21 line 30-49] these timers are part of the SL DRX operation). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the RTT timer as taught by Back within the parameter of SELVANESAN. One would have been motivated to do so in order to improve the efficiency, reliability, economics and sustainability of the production and distribution of fuels such as electricity in an automated fashion with low delays (Back [Page 3 line 18-22]). Regarding claim 8, SELVANESAN teaches an apparatus (FIG. 2 (a) a second vehicle 154), comprising: at least one processor (FIG. 10 the processor 602), and a non-transitory memory storing instructions that (FIG. 10 memory 606 and 608), when executed by the at least one processor, cause the apparatus to perform operations ([0281]) comprising: receiving first control information (FIG. 3 1st stage SCI 216) and first data from a first terminal (FIG. 2 (a) a first vehicle 152) ([0038] NR V2X uses resource pools including a physical sidelink control channel, PSCCH, and a physical sidelink shared channel, PSSCH. When a UE transmits a data packet in a transport block, TB, the symbols and the RBs include the PSCCH and the PSSCH, [0041] control information is transmitted to inform a receiving UE to successfully decode the data packet carried in the PSSCH), wherein the first control information comprises cast type indication information indicating SL groupcast transmission with negative acknowledgement (NACK) only feedback ([0055]-[0063] SCI format 2-A includes a cast type indicator, [0064]-[0072] SCI format 2-B is used when the transmission uses group cast HARQ feedback option 1, where the HARQ information includes only a NACK), and the first terminal and a second terminal are terminals in a same communication group (FIG. 2 (a); [0249]-[0252] a plurality of user devices, UEs, configured for a sidelink communication using a set of sidelink resources). However, SELVANESAN does not teach starting a first timer at a specified location after a hybrid automatic repeat request (HARQ) feedback resource corresponding to the first data, wherein a duration of the first timer indicates a minimum duration that elapses before SL resource scheduling information used for HARQ retransmission is expected to be received; and when the first timer expires, determining whether the second terminal successfully decodes the first data and detects a NACK on the HARQ feedback resource before the first timer expires; and only when it is determined that the second terminal successfully decodes the first data and has detected the NACK, starting a second timer with duration indicating maximum duration that elapses before the SL resource scheduling information used for HARQ retransmission is received. In an analogous art, Back teaches starting a first timer at a specified location after a hybrid automatic repeat request (HARQ) feedback resource corresponding to the first data ([Page 22 line 20] the RX UE starts an RTT timer (S1207), [Page 22 line 39] the RTT timer may be started based on PSFCH resources, [Page 22 line 46-48] For a MAC PDU where HARQ feedback is enabled, the time may be started based on PSFCH resources, wherein the specified location corresponds to a time-domain position of the PSFCH resource carrying HARQ feedback following reception of the first data), wherein a duration of the first timer indicates a minimum duration that elapses before SL resource scheduling information used for HARQ retransmission is expected to be received ([Page 20 line 52-54] drx-HARQ-RTT-TimerSL (per HARQ process): Minimum duration time before an SL retransmission grant is predicted by a MAC entity); and starting, by the second terminal, a second timer with duration indicating maximum duration that elapses before the SL resource scheduling information used for HARQ retransmission is received ([Page 22 line 21-25] When the RTT timer expires, the RX UE may start the retransmission timer (S1209). Therefore, while the retransmission timer is running, the RX UE may wait for and receive PSSCH transmission (or retransmission) in the wake-up state (S1211), [Page 21 line 49-51] drx-RetransmissionTimerSL (per HARQ process): Maximum period until a grant for SL retransmission is received, [Page 22 line 29-31] when NACK information transmission is dropped, the RX UE may be allowed to start the SL DRX timer (e.g., retransmission timer, RTT timer, etc.)). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the RTT timer as taught by Back within the system of SELVANESAN. One would have been motivated to do so in order to improve the efficiency, reliability, economics and sustainability of the production and distribution of fuels such as electricity in an automated fashion with low delays (Back [Page 3 line 18-22]). However, the combination of SELVANESAN and Back does not teach when the first timer expires, determining whether the second terminal successfully decodes the first data and detects a NACK on the HARQ feedback resource before the first timer expires; and only when it is determined that the second terminal successfully decodes the first data and has detected the NACK. In an analogous art, Zhang teaches when the first timer expires, determining whether the second terminal successfully decodes the first data and detects a NACK on the HARQ feedback resource before the first timer expires; and only when it is determined that the second terminal successfully decodes the first data and has detected the NACK ([0142] discloses monitoring to identify an ACK or a NACK based on a timer duration and determining the NACK in response to the timer duration expiring before detecting the ACK, [0112] discloses that, for a same HARQ process, the UE assumes that the beam report is decoded successfully or not decoded successfully as a NACK). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the NACK as taught by Zhang within the system of SELVANESAN and Back. One would have been motivated to do so in order to improve handover latency and efficiency by increasing the usage of dynamic control signaling for user experience (Zhang [0003]). Regarding claim 9, the claim is interpreted and rejected for the same reason as set forth for claim 2. Regarding claim 10, the combination of SELVANESAN, Back and Zhang, specifically SELVANESAN teaches wherein, when executed, the instructions cause the apparatus to perform operations ([0281]) comprising: associating the first data with a first SL process in accordance with an SL process identifier included in the first control information, wherein the first SL process is used to process the first data ([0056], [0065] disclose that the second-stage SCI includes an HARQ process number identifying a sidelink process, [0055] the second-stage SCI carries information regarding the HARQ procedure for processing the data). Regarding claim 11, the combination of SELVANESAN, Back and Zhang, specifically Back teaches wherein, when executed, the instructions cause the apparatus to perform operations (FIG. 14 memory 204) comprising: when determining that the second terminal successfully decodes the first data but detects no NACK on the HARQ feedback resource, releasing the first SL process ([Page 23 line 4-16] discloses that, when the RX UE successfully receives/decodes desired information, the RX UE may not operate the retransmission timer, [Page 23 line 58-65] discloses that a related SL HARQ process buffer may be flushed when the SL DRX timer expires). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the RTT timer as taught by Back within the system of SELVANESAN. One would have been motivated to do so in order to improve the efficiency, reliability, economics and sustainability of the production and distribution of fuels such as electricity in an automated fashion with low delays (Back [Page 3 line 18-22]). Regarding claim 12, the combination of SELVANESAN, Back and Zhang specifically SELVANESAN teaches wherein, when executed, the instructions cause the apparatus to perform operations ([0281]) comprising: when determining that the second terminal successfully decodes the first data, releasing the first SL process ([0041] the control information allows the receiving UE to successfully decode the data packet, [0055] the second-stage SCI carries information regarding the HARQ procedure for processing the data); receiving second data and second control information (FIG. 3 2nd stage SCI 218), wherein a cast type indicated by the second control information is groupcast transmission with NACK only feedback ([0055] the 2nd stage SCI is transmitted together with the payload in the PSSCH, [0064]-[0072] SCI format 2-B is used for groupcast HARQ feedback option 1 where the HARQ information includes only a NACK); associating a second SL process with second SL process identification information indicated by the second control information (FIG. 3 2nd stage SCI 218), wherein the second SL process is used to process the second data ([0056], [0065] disclose that the 2nd stage SCI includes an HARQ process number identifying a sidelink process, and the HARQ procedure is identified by an HARQ process number, [0055] discloses that the 2nd stage SCI carries information regarding the HARQ procedure for processing the data); and when the second terminal determines that the second data is retransmitted data of the first data, releasing the second SL process ([0057]; [0066] a new data indicator (NDI) in the 2nd stage SCI for indicating whether the transmission contains new data or retransmitted data, [0055] the 2nd stage SCI carries information regarding the HARQ procedure for identifying and decoding the data in the PSSCH, [0042] the first-stage SCI carries resource reservation period information for repetitive transmissions, thereby indicating that the SL process is bounded to a transmission cycle and is terminated when the retransmission cycle ends). Regarding claim 13, the combination of SELVANESAN, Back and Zhang, specifically SELVANESAN teaches wherein, when executed, the instructions cause the apparatus to perform operations ([0281]) comprising: determining that that the first data is the last transmission if the first control information does not indicate a resource location of second control information for a data retransmission ([0042] the 1st stage SCI includes time resource assignment, frequency resource assignment, and a resource reservation period indicating repetitive resource reservation for future transmissions, [0048] the 1st stage SCI includes a parameter indicating the 2nd stage SCI format expected in the PSSCH, [0055] the 2nd stage SCI is transmitted in the PSSCH together with the payload and is used to identify and decode the data). Regarding claim 14, the claim is interpreted and rejected for the same reason as set forth for claim 7. Regarding claim 15, SELVANESAN teaches a non-transitory memory storage medium comprising computer-executable instructions that, when executed, carrying out an apparatus operations ([0025] a non-transitory digital storage medium having a computer program stored thereon to perform any of the inventive methods when said computer program is run by a computer) comprising: receiving first control information (FIG. 3 1st stage SCI 216) and first data from a first terminal (FIG. 2 (a) a first vehicle 152) ([0038] NR V2X uses resource pools including a physical sidelink control channel, PSCCH, and a physical sidelink shared channel, PSSCH. When a UE transmits a data packet in a transport block, TB, the symbols and the RBs include the PSCCH and the PSSCH, [0041] control information is transmitted to inform a receiving UE to successfully decode the data packet carried in the PSSCH), wherein the first control information comprises cast type indication information indicating groupcast transmission with negative acknowledgement (NACK) only feedback ([0055]-[0063] SCI format 2-A includes a cast type indicator, [0064]-[0072] SCI format 2-B is used when the transmission uses group cast HARQ feedback option 1, where the HARQ information includes only a NACK), and the first terminal and a second terminal (FIG. 2 (a) a second vehicle 154) are terminals in a same communication group (FIG. 2 (a); [0249]-[0252] a plurality of user devices, UEs, configured for a sidelink communication using a set of sidelink resources); However, SELVANESAN does not teach starting a first timer at a specified location after a hybrid automatic repeat request (HARQ) feedback resource corresponding to the first data, wherein a duration of the first timer indicates a minimum duration that elapses before SL resource scheduling information used for HARQ retransmission is expected to be received; and when the first timer expires, determining whether the second terminal successfully decodes the first data and detects a NACK on the HARQ feedback resource before the first timer expires; and only when it is determined that the second terminal successfully decodes the first data and has detected the NACK, starting a second timer with duration indicating maximum duration that elapses before the SL resource scheduling information used for HARQ retransmission is received. In an analogous art, Back teaches starting a first timer at a specified location after a hybrid automatic repeat request (HARQ) feedback resource corresponding to the first data ([Page 22 line 20] the RX UE starts an RTT timer (S1207), [Page 22 line 39] the RTT timer may be started based on PSFCH resources, [Page 22 line 46-48] For a MAC PDU where HARQ feedback is enabled, the time may be started based on PSFCH resources, wherein the specified location corresponds to a time-domain position of the PSFCH resource carrying HARQ feedback following reception of the first data), wherein a duration of the first timer indicates a minimum duration that elapses before SL resource scheduling information used for HARQ retransmission is expected to be received ([Page 20 line 52-54] drx-HARQ-RTT-TimerSL (per HARQ process): Minimum duration time before an SL retransmission grant is predicted by a MAC entity); and starting a second timer with duration indicating maximum duration that elapses before the SL resource scheduling information used for HARQ retransmission is received ([Page 22 line 21-25] When the RTT timer expires, the RX UE may start the retransmission timer (S1209). Therefore, while the retransmission timer is running, the RX UE may wait for and receive PSSCH transmission (or retransmission) in the wake-up state (S1211), [Page 21 line 49-51] drx-RetransmissionTimerSL (per HARQ process): Maximum period until a grant for SL retransmission is received, [Page 22 line 29-31] when NACK information transmission is dropped, the RX UE may be allowed to start the SL DRX timer (e.g., retransmission timer, RTT timer, etc.)). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the RTT timer as taught by Back within the system of SELVANESAN. One would have been motivated to do so in order to improve the efficiency, reliability, economics and sustainability of the production and distribution of fuels such as electricity in an automated fashion with low delays (Back [Page 3 line 18-22]). However, the combination of SELVANESAN and Back does not teach when the first timer expires, determining whether the second terminal successfully decodes the first data and detects a NACK on the HARQ feedback resource before the first timer expires; and only when it is determined that the second terminal successfully decodes the first data and has detected the NACK. In an analogous art, Zhang teaches when the first timer expires, determining whether the second terminal successfully decodes the first data and detects a NACK on the HARQ feedback resource before the first timer expires; and only when it is determined that the second terminal successfully decodes the first data and has detected the NACK ([0142] discloses monitoring to identify an ACK or a NACK based on a timer duration and determining the NACK in response to the timer duration expiring before detecting the ACK, [0112] discloses that, for a same HARQ process, the UE assumes that the beam report is decoded successfully or not decoded successfully as a NACK). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the NACK as taught by Zhang within the system of SELVANESAN and Back. One would have been motivated to do so in order to improve handover latency and efficiency by increasing the usage of dynamic control signaling for user experience (Zhang [0003]). Regarding claim 16, the claim is interpreted and rejected for the same reason as set forth for claim 2. Regarding claim 17, the combination of SELVANESAN, Back and Zhang, specifically SELVANESAN teaches wherein when the instructions executed, carrying out operations ([0025]) comprising: associating the first data with a first SL process in accordance with the SL process identifier included in the first control information (FIG. 3 1st stage SCI 216) ([0056], [0065] disclose that the second-stage SCI includes an HARQ process number identifying a sidelink process, [0055] the second-stage SCI carries information regarding the HARQ procedure for processing the data). Regarding claim 18, the combination of SELVANESAN and Back, specifically Back teaches wherein when the instructions executed ([Page 5 line 53-57]), carrying out operations comprising: when determining that the second terminal successfully decodes the first data and detects the NACK on the HARQ feedback resource, continuing to occupy the first SL process ([Page 22 line 29-31] when NACK information transmission is dropped, the RX UE may be allowed to start the SL DRX timer, including the retransmission timer and RTT timer, [Page 20 line 49-54] drx-RetransmissionTimerSL (per HARQ process): Maximum period until a grant for SL retransmission is received. drx-HARQ-RTT-TimerSL (per HARQ process): Minimum duration time before an SL retransmission grant is predicted, thereby indicating that the RX UE maintains the HARQ process and waits for SL retransmission grants using the same HARQ process when NACK is detected). Therefore, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the RTT timer as taught by Back within the system of SELVANESAN. One would have been motivated to do so in order to improve the efficiency, reliability, economics and sustainability of the production and distribution of fuels such as electricity in an automated fashion with low delays (Back [Page 3 line 18-22]). Regarding claim 19, the combination of SELVANESAN, Back and Zhang specifically SELVANESAN teaches wherein when the instructions executed ([0025]), carrying out operations comprising: when determining that the second terminal successfully decodes the first data, releasing the first SL process ([0041] the control information allows the receiving UE to successfully decode the data packet, [0055] the second-stage SCI carries information regarding the HARQ procedure for processing the data); receiving second data and second control information, wherein a cast type indicated by the second control information is groupcast transmission with NACK only feedback ([0055] the 2nd stage SCI is transmitted together with the payload in the PSSCH, [0064]-[0072] SCI format 2-B is used for groupcast HARQ feedback option 1 where the HARQ information includes only a NACK); associating a second SL process with second SL process identification information indicated by the second control information, wherein the second SL process is used to process the second data ([0056], [0065] the 2nd stage SCI includes an HARQ process number identifying a sidelink process, and the HARQ procedure is identified by an HARQ process number, [0055] the 2nd stage SCI carries information regarding the HARQ procedure for processing the data); and when the second terminal determines that the second data is retransmitted data of the first data, releasing the second SL process ([0057]; [0066] a new data indicator (NDI) in the 2nd stage SCI for indicating whether the transmission contains new data or retransmitted data, [0055] the 2nd stage SCI carries information regarding the HARQ procedure for identifying and decoding the data in the PSSCH, [0042] the first-stage SCI carries resource reservation period information for repetitive transmissions, thereby indicating that the SL process is bounded to a transmission cycle and is terminated when the retransmission cycle ends). Regarding claim 20, the claim is interpreted and rejected for the same reason as set forth for claim 7. Conclusion The following prior art made of record and not relied upon is considered pertinent to applicant's disclosure: US 2022/0303960 A1 (Zhou et al.) discloses a wireless device monitors a physical downlink control channel (PDCCH) on a first search space group (SSG), of a bandwidth part (BWP), having one or more search spaces on the BWP. US 2023/0231660 A1 (WU et al.) discloses an electronic device, a communication method and a storage medium in a wireless communication system. US 2024/0048286 A1 (KANAMARLAPUDI et al.) discloses negative acknowledgment (NACK) transmissions during physical (PHY) layer issues. 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 THEODORE IM whose telephone number is (571)270-1955. The examiner can normally be reached M-F 9AM-5PM ET. 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, UN C CHO can be reached on 571-272-7919. 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. /T.I./ Examiner, Art Unit 2413 /UN C CHO/ Supervisory Patent Examiner, Art Unit 2413
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Prosecution Timeline

Sep 17, 2023
Application Filed
Jan 28, 2026
Non-Final Rejection mailed — §103
Apr 27, 2026
Response Filed
Jun 03, 2026
Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12562794
CSI FEEDBACK METHOD AND APPARATUS, ELECTRONIC DEVICE, AND STORAGE MEDIUM
3y 1m to grant Granted Feb 24, 2026
Patent 12439446
WIRELESS TRANSMISSION SCHEDULING METHOD AND APPARATUS BASED ON UNRELIABLE NETWORK
2y 9m to grant Granted Oct 07, 2025
Study what changed to get past this examiner. Based on 2 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
64%
Grant Probability
82%
With Interview (+17.9%)
3y 1m (~3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 11 resolved cases by this examiner. Grant probability derived from career allowance rate.

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