Prosecution Insights
Last updated: July 17, 2026
Application No. 18/463,151

USER EQUIPMENT UPLINK SYNCHRONIZATION

Non-Final OA §102§103§112
Filed
Sep 07, 2023
Priority
Sep 10, 2022 — provisional 63/405,397
Examiner
DABIRI, HIDAYAT T
Art Unit
2414
Tech Center
2400 — Computer Networks
Assignee
Apple Inc.
OA Round
1 (Non-Final)
70%
Grant Probability
Favorable
1-2
OA Rounds
6m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allowance Rate
37 granted / 53 resolved
+11.8% vs TC avg
Moderate +14% lift
Without
With
+14.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
17 currently pending
Career history
78
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
93.6%
+53.6% vs TC avg
§102
4.8%
-35.2% vs TC avg
§112
1.2%
-38.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 53 resolved cases

Office Action

§102 §103 §112
DETAILED ACTION This office action is a response to the application 18/463,151 filed on September 7th, 2023. Claim Status This office action is based upon claims received on 01/14/2026, which replace all prior or other submitted versions of the claims. Claims 12 – 20 are canceled. Claims 1 – 11 and 21 – 29 are pending. Claims 7, 8, and 10 are objected to. Claims 1 – 6, 9, 11, and 21 – 29 are rejected. 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 09/07/2023 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. Response to Election / Restriction In response to the Requirement for Election / Restriction, Applicant elects Group I, claims 1-11, without traverse, and without prejudice. Thus, claims 12 – 20 are canceled herein. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION. —The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claim 21 is rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Regarding Claim 21, claim 21 recites the limitation “identify a transmission received from a base station, the transmission to trigger a non-preamble uplink (UL) transmission from the UE” on line 4. There is insufficient antecedent basis for this limitation in the claim. Claim 21 is an independent claim and there was no mention of any UE prior to this claim limitation highlighted above. It is not clear which UE the limitation above is referring to. For examination purposes, the claim limitation will be understood as “identify a transmission received from a base station, the transmission to trigger a non-preamble uplink (UL) transmission from a UE”. Claim Objections Claim 27 is objected to because of the following informalities: The limitations on line 4 appear to be missing a linking word. The limitations recite “identifying the non-preamble UL transmission received from the UE, a UL synchronization state of the UE…”. The underlined section appears to be missing a linking word. Applicant should consider revising the limitation as presented in order to avoid unclear claim limitations. Appropriate correction is required. Claim Rejections - 35 USC § 102 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. 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. Claims 1 – 5, 11, 21 – 25, and 27 – 29 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Xu et al. [WO 2019213892 A1] hereinafter Xu-3892. Regarding claim 1, Xu-3892 teaches a method comprising: identifying a transmission received from a base station, the transmission to trigger a non-preamble uplink (UL) transmission (Xu-3892: Fig. 6, ¶ 97; wherein an element of the cellular network (e.g., a base station) activates SP-CSI reporting on PUSCH for UE 106 (i.e., the UE receives transmission from the base station that triggers the UE to send SP-CSI report on PUSCH (i.e., wherein PUSCH is a type of non-preamble uplink transmission))); identifying that a UL synchronization state of a user equipment (UE) is out of synchronization prior to the non-preamble UL transmission being transmitted by the UE (Xu-3892: Fig. 6, ¶ 97; wherein UE 106 stores information indicating the configuration of the SP-CSI reports on PUSCH and that the SP-CSI are activated. Based on TAT expiry, UE 106 goes out-of-sync (i.e., at the point when the UE goes out-of-sync, it still has SP-CSI report on PUSCH configuration stored for subsequent transmissions. Therefore, the UE realizes it is out-of-sync before the next configured transmission of the SP-CSI report)); and performing a procedure to transmit the non-preamble UL transmission to the base station (Xu-3892: Fig. 6, ¶ 97; wherein UE 106 performs a RACH procedure and re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH (i.e., after the UE discovers it is out-of-sync, it performs a RACH procedure to get back in the in-sync state, then subsequently sends the already scheduled/stored SP-CSI report on PUSCH after the establishing synchronization with the base station)). Regarding claim 2, Xu-3892 teaches the method of claim 1, wherein the non-preamble UL transmission comprises a physical uplink control channel (PUCCH) transmission, a physical uplink shared channel (PUSCH) transmission, or a sounding reference signal (SRS) (Xu-3892: ¶ 85, Fig. 6, ¶ 97; wherein the UE is synchronized with the cellular network for uplink transmissions (e.g., using a Physical Uplink Control Channel (PUCCH) , Physical Uplink Shared Channel (PUSCH) , and/or Sounding Reference Signal (SRS)), and the SP-CSI is sent on PUSCH). Regarding claim 3, Xu-3892 teaches the method of claim 1, wherein identifying that the UL synchronization state is out of synchronization comprises identifying that the UL synchronization state is out of synchronization at a scheduled time for the non-preamble UL transmission (Xu-3892: Fig. 6, ¶ 97; in view of the base station that configures the SP-CSI report on a periodical patter (e.g., by specifying the periodicity and offset) and based on this activated configuration, the UE 106 sends the SP-CSI reports on PUSCH to the network 100 as shown in Fig. 6. Therefore, if the reports are configured on a periodical pattern, the UE will identify the out of synchronization state at a scheduled time for the non-preamble UL transmission), and wherein performing the procedure comprises to: generating, for transmission to the base station, a UL synchronization request (Xu-3892: Fig. 6, ¶ 85, ¶ 88; wherein the UE is configured to re-enter the in-sync state by performing a random access channel (RACH) procedure to acquire initial uplink time alignment for uplink synchronization); identifying a timing advance command (TAC) medium access control (MAC) control element (CE) received from the base station (Xu-3892: Fig. 6, ¶ 86-88; wherein the UE is also configured to re-enter the in-sync state upon receiving a TAC MAC CE from the network); synchronizing the UE based on the TAC MAC CE to have the UL synchronization state of the UE be in synchronization (Xu-3892: Fig. 6, ¶ 86-88; wherein a Timing Alignment Timer (TAT) controls UE synchronization state. The TAT may be started based on receiving a timing advance command (TA) from the network, e.g., via a Timing Command (TAC) Medium Access Control (MAC) Control Element (CE) . In some embodiments, the duration of the TAT is configured by the cellular network and the TAT is reset when TACs are received by a UE); and generating, for transmission, the non-preamble UL transmission while the UL synchronization state is in synchronization (Xu-3892: Fig. 6, ¶ 97; wherein subsequently, UE 106… re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH). Regarding claim 4, Xu-3892 teaches the method of claim 1, wherein performing the procedure comprises to: generating, for transmission to the base station, the non-preamble UL transmission (Xu-3892: Fig. 6, ¶ 97; wherein subsequently, UE 106… re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH); and restarting a timing alignment timer (TAT) upon the transmission of the non- preamble UL transmission, the restarting of the TAT to cause the UL synchronization state of the UE to be in synchronization (Xu-3892: Fig. 6, Fig. 8, ¶ 86, ¶ 102, ¶ 108; wherein a Timing Alignment Timer (TAT) controls UE synchronization state. The TAT may be started based on receiving a timing advance command (TA) from the network, e.g., via a Timing Command (TAC) Medium Access Control (MAC) Control Element (CE)…wherein the UE re-enters the in-sync state by restarting the TAT (i.e., the UE starts the TAT received in the TAC MAC CE and re-enters the in-sync state before the transmission of the non-preamble UL transmission). Regarding claim 5, Xu-3892 teaches the method of claim 1, wherein performing the procedure comprises to: restarting a timing alignment timer (TAT) upon expiration of the TAT, the restarting of the TAT to cause the UL synchronization state of the UE to be in synchronization (Xu-3892: Fig. 6, Fig. 8, ¶ 86, ¶ 102, ¶ 108; wherein a Timing Alignment Timer (TAT) controls UE synchronization state. The TAT may be started based on receiving a timing advance command (TA) from the network, e.g., via a Timing Command (TAC) Medium Access Control (MAC) Control Element (CE)…wherein the UE re-enters the in-sync state by restarting the TAT (i.e., the UE starts the TAT received in the TAC MAC CE and re-enters the in-sync state before the transmission of the non-preamble UL transmission); and generating, for transmission to the base station, the non-preamble UL transmission, the non-preamble UL transmission to be transmitted while the UL synchronization state of the UE is in synchronization (Xu-3892: Fig. 6, ¶ 97; wherein subsequently, UE 106… re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH). Regarding claim 11, Xu-3892 teaches the method of claim 1, wherein performing the procedure comprises: triggering a random access channel (RACH) procedure for UL synchronization (Xu-3892: Fig. 6, ¶ 97; wherein UE 106 performs a RACH procedure and re-enters the in-sync state. (i.e., after the UE discovers it is out-of-sync, it performs a RACH procedure to get back in the in-sync state)); synchronizing the UE based on the RACH procedure (Xu-3892: Fig. 6, ¶ 97; wherein UE 106 performs a RACH procedure and re-enters the in-sync state); and generating, for transmission, the non-preamble UL transmission, the non- preamble UL transmission to be transmitted while the UL synchronization state is in synchronization (Xu-3892: Fig. 6, ¶ 97; wherein subsequently, UE 106… re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH). Regarding claim 21, Xu-3892 teaches an apparatus comprising: processing circuitry (Xu-3892: Fig. 3, ¶ 75; in view of Processor(s) 302) to: identify a transmission received from a base station, the transmission to trigger a non-preamble uplink (UL) transmission (Xu-3892: Fig. 6, ¶ 97; wherein an element of the cellular network (e.g., a base station) activates SP-CSI reporting on PUSCH for UE 106 (i.e., the UE receives transmission from the base station that triggers the UE to send SP-CSI report on PUSCH (i.e., wherein PUSCH is a type of non-preamble uplink transmission))) from the UE (Xu-3892: Fig. 3, ¶ 75; in view of UE 106); identify that a UL synchronization state of the UE is out of synchronization prior to the non-preamble UL transmission being transmitted by the UE (Xu-3892: Fig. 6, ¶ 97; wherein UE 106 stores information indicating the configuration of the SP-CSI reports on PUSCH and that the SP-CSI are activated. Based on TAT expiry, UE 106 goes out-of-sync (i.e., at the point when the UE goes out-of-sync, it still has SP-CSI report on PUSCH configuration stored for subsequent transmissions. Therefore, the UE realizes it is out-of-sync before the next configured transmission of the SP-CSI report)); and perform a procedure to transmit the non-preamble UL transmission to the base station (Xu-3892: Fig. 6, ¶ 97; wherein UE 106 performs a RACH procedure and re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH (i.e., after the UE discovers it is out-of-sync, it performs a RACH procedure to get back in the in-sync state, then subsequently sends the already scheduled/stored SP-CSI report on PUSCH after the establishing synchronization with the base station)); and interface circuitry to receive the transmission from the base station (Xu-3892: Fig. 3, ¶ 76-77; in view of connector interface 320, the wireless communication circuitry 330, and the antenna(s) 335). Regarding claim 22, Xu-3892 teaches the apparatus of claim 21, wherein the non-preamble UL transmission comprises a physical uplink control channel (PUCCH) transmission, a physical uplink shared channel (PUSCH) transmission, or a sounding reference signal (SRS) (Xu-3892: ¶ 85, Fig. 6, ¶ 97; wherein the UE is synchronized with the cellular network for uplink transmissions (e.g., using a Physical Uplink Control Channel (PUCCH) , Physical Uplink Shared Channel (PUSCH) , and/or Sounding Reference Signal (SRS)), and the SP-CSI is sent on PUSCH). Regarding claim 23, Xu-3892 teaches the apparatus of claim 21, wherein to identify that the UL synchronization state is out of synchronization comprises to identify that the UL synchronization state is out of synchronization at a scheduled time for the non-preamble UL transmission (Xu-3892: Fig. 6, ¶ 97; in view of the base station that configures the SP-CSI report on a periodical patter (e.g., by specifying the periodicity and offset) and based on this activated configuration, the UE 106 sends the SP-CSI reports on PUSCH to the network 100 as shown in Fig. 6. Therefore, if the reports are configured on a periodical pattern, the UE will identify the out of synchronization state at a scheduled time for the non-preamble UL transmission), and wherein to perform the procedure comprises to: generate, for transmission to the base station, a UL synchronization request (Xu-3892: Fig. 6, ¶ 85, ¶ 88; wherein the UE is configured to re-enter the in-sync state by performing a random access channel (RACH) procedure to acquire initial uplink time alignment for uplink synchronization); identify a timing advance command (TAC) medium access control (MAC) control element (CE) received from the base station (Xu-3892: Fig. 6, ¶ 86-88; wherein the UE is also configured to re-enter the in-sync state upon receiving a TAC MAC CE from the network); synchronize the UE based on the TAC MAC CE to have the UL synchronization state of the UE be in synchronization(Xu-3892: Fig. 6, ¶ 86-88; wherein a Timing Alignment Timer (TAT) controls UE synchronization state. The TAT may be started based on receiving a timing advance command (TA) from the network, e.g., via a Timing Command (TAC) Medium Access Control (MAC) Control Element (CE) . In some embodiments, the duration of the TAT is configured by the cellular network and the TAT is reset when TACs are received by a UE); and generate, for transmission, the non-preamble UL transmission while the UL synchronization state is in synchronization (Xu-3892: Fig. 6, ¶ 97; wherein subsequently, UE 106… re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH). Regarding claim 24, Xu-3892 teaches the apparatus of claim 21, wherein to perform the procedure comprises to: generate, for transmission to the base station, the non-preamble UL transmission (Xu-3892: Fig. 6, ¶ 97; wherein subsequently, UE 106… re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH); and restart a timing alignment timer (TAT) upon the transmission of the non-preamble UL transmission, the restart of the TAT to cause the UL synchronization state of the UE to be in synchronization (Xu-3892: Fig. 6, Fig. 8, ¶ 86, ¶ 102, ¶ 108; wherein a Timing Alignment Timer (TAT) controls UE synchronization state. The TAT may be started based on receiving a timing advance command (TA) from the network, e.g., via a Timing Command (TAC) Medium Access Control (MAC) Control Element (CE)…wherein the UE re-enters the in-sync state by restarting the TAT (i.e., the UE starts the TAT received in the TAC MAC CE and re-enters the in-sync state before the transmission of the non-preamble UL transmission). Regarding claim 25, Xu-3892 teaches the apparatus of claim 21, wherein to perform the procedure comprises to: restart a timing alignment timer (TAT) upon expiration of the TAT, the restart of the TAT to cause the UL synchronization state of the UE to be in synchronization (Xu-3892: Fig. 6, Fig. 8, ¶ 86, ¶ 102, ¶ 108; wherein a Timing Alignment Timer (TAT) controls UE synchronization state. The TAT may be started based on receiving a timing advance command (TA) from the network, e.g., via a Timing Command (TAC) Medium Access Control (MAC) Control Element (CE)…wherein the UE re-enters the in-sync state by restarting the TAT (i.e., the UE starts the TAT received in the TAC MAC CE and re-enters the in-sync state before the transmission of the non-preamble UL transmission); and generate, for transmission to the base station, the non-preamble UL transmission, the non-preamble UL transmission to be transmitted while the UL synchronization state of the UE is in synchronization (Xu-3892: Fig. 6, ¶ 97; wherein subsequently, UE 106… re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH). Regarding claim 27, Xu-3892 teaches a method comprising: generating, for transmission to a user equipment (UE) (Xu-3892: Fig. 3, ¶ 75; in view of UE 106), a transmission to trigger a non- preamble uplink (UL) transmission from the UE (Xu-3892: Fig. 6, ¶ 97; wherein an element of the cellular network (e.g., a base station) activates SP-CSI reporting on PUSCH for UE 106 (i.e., the UE receives transmission from the base station that triggers the UE to send SP-CSI report on PUSCH (i.e., wherein PUSCH is a type of non-preamble uplink transmission))); and identifying the non-preamble UL transmission received from the UE (Xu-3892: Fig. 6, ¶ 97; wherein UE 106 performs a RACH procedure and re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH (i.e., after the UE discovers it is out-of-sync, it performs a RACH procedure to get back in the in-sync state, then subsequently sends the already scheduled/stored SP-CSI report on PUSCH after the establishing synchronization with the base station)), a UL synchronization state of the UE being out of synchronization prior to transmission of the non- preamble UL transmission (Xu-3892: Fig. 6, ¶ 97; wherein UE 106 stores information indicating the configuration of the SP-CSI reports on PUSCH and that the SP-CSI are activated. Based on TAT expiry, UE 106 goes out-of-sync (i.e., at the point when the UE goes out-of-sync, it still has SP-CSI report on PUSCH configuration stored for subsequent transmissions. Therefore, the UE realizes it is out-of-sync before the next configured transmission of the SP-CSI report)). Regarding claim 28, Xu-3892 teaches the method of claim 27, wherein the non-preamble UL transmission comprises a physical uplink control channel (PUCCH) transmission, a physical uplink shared channel (PUSCH) transmission, or a sounding reference signal (SRS) (Xu-3892: ¶ 85, Fig. 6, ¶ 97; wherein the UE is synchronized with the cellular network for uplink transmissions (e.g., using a Physical Uplink Control Channel (PUCCH) , Physical Uplink Shared Channel (PUSCH) , and/or Sounding Reference Signal (SRS)), and the SP-CSI is sent on PUSCH). Regarding claim 29, Xu-3892 teaches the method of claim 27, further comprising: identifying a UL synchronization request received from the UE (Xu-3892: Fig. 6, ¶ 85, ¶ 88; wherein the UE is configured to re-enter the in-sync state by performing a random access channel (RACH) procedure to acquire initial uplink time alignment for uplink synchronization); and generating, for transmission to the UE, a timing advance command (TAC) medium access control (MAC) control element (CE) (Xu-3892: Fig. 6, ¶ 86-88; wherein the UE is also configured to re-enter the in-sync state upon receiving a TAC MAC CE from the network). 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. 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. 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 6 and 26 are rejected under 35 U.S.C. 103 as being unpatentable over Xu et al. [WO 2019213892 A1] hereinafter Xu-3892, as applied to claims 1 and 21 above, and further in view of Zhang et al. [US 20170325057 A1] hereinafter Zhang-5057. Regarding claim 6, Xu-3892 teaches the method of claim 1, wherein performing the procedure comprises generating, for transmission to the base station, the non-preamble UL transmission (Xu-3892: Fig. 6, ¶ 97; wherein subsequently, UE 106… re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH). Xu-3892 does not explicitly disclose that the non-preamble UL transmission to be transmitted while the UL synchronization state of the UE is out of synchronization. Referring to the invention of Zhang-5057, Zhang-5057 teaches that a non-preamble UL transmission to be transmitted while the UL synchronization state of the UE is out of synchronization (Zhnag-5057: ¶ 98, ¶ 115, ¶ 132, ¶ 179; wherein if the UE already loses uplink synchronization, the UE needs to report the beam identity information by means of a random access process, and adds the beam identity information to a random access message 3 and sends the random access message 3 (i.e., when the UE is out-of-sync with a base station, it can send the beam identity (which is a type of non-preamble UL information) to the base station by sending it along with the Msg3 in a RACH procedure)). Thus, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to incorporate the use of the MSg3 step in a RACH procedure to send a non-preamble uplink information to a base station as taught by Zhang-5057 into the RACH procedure teachings of Xu-3892 in order to avoid unnecessary contention, speed up access, and improve reliability in scenarios where the UE already has scheduled resources or is in a contention-free mode. Regarding claim 26, Xu-3892 teaches the apparatus of claim 21, wherein to perform the procedure comprises to generate, for transmission to the base station, the non-preamble UL transmission (Xu-3892: Fig. 6, ¶ 97; wherein subsequently, UE 106… re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH). Xu-3892 does not explicitly disclose that the non-preamble UL transmission to be transmitted while the UL synchronization state of the UE is out of synchronization. Referring to the invention of Zhang-5057, Zhang-5057 teaches that a non-preamble UL transmission to be transmitted while the UL synchronization state of the UE is out of synchronization (Zhnag-5057: ¶ 98, ¶ 115, ¶ 132, ¶ 179; wherein if the UE already loses uplink synchronization, the UE needs to report the beam identity information by means of a random access process, and adds the beam identity information to a random access message 3 and sends the random access message 3 (i.e., when the UE is out-of-sync with a base station, it can send the beam identity (which is a type of non-preamble UL information) to the base station by sending it along with the Msg3 in a RACH procedure)). Thus, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to incorporate the use of the MSg3 step in a RACH procedure to send a non-preamble uplink information to a base station as taught by Zhang-5057 into the RACH procedure teachings of Xu-3892 in order to avoid unnecessary contention, speed up access, and improve reliability in scenarios where the UE already has scheduled resources or is in a contention-free mode. Claim 9 is rejected under 35 U.S.C. 103 as being unpatentable over Xu et al. [WO 2019213892 A1] hereinafter Xu-3892, as applied to claim 1 above, and further in view of Zhang et al. [US 20070201397 A1] hereinafter Zhang-1397. Regarding claim 9, Xu-3892 teaches the method of claim 1, wherein performing the procedure comprises: identifying a timing advance command (TAC) medium access control (MAC) control element (CE) received from the base station (Xu-3892: Fig. 6, ¶ 86-88; wherein the UE is also configured to re-enter the in-sync state upon receiving a TAC MAC CE from the network); synchronizing the UE based on the TAC MAC CE to have the UL synchronization state of the UE be in synchronization (Xu-3892: Fig. 6, ¶ 86-88; wherein a Timing Alignment Timer (TAT) controls UE synchronization state. The TAT may be started based on receiving a timing advance command (TA) from the network, e.g., via a Timing Command (TAC) Medium Access Control (MAC) Control Element (CE) . In some embodiments, the duration of the TAT is configured by the cellular network and the TAT is reset when TACs are received by a UE); and generating, for transmission, the non-preamble UL transmission, the non- preamble UL transmission to be transmitted while the UL synchronization state is in synchronization (Xu-3892: Fig. 6, ¶ 97; wherein subsequently, UE 106… re-enters the in-sync state. Based on the previously stored SP-CSI configuration, UE 106 then sends an SP-CSI report on PUSCH). Xu-3892 does not explicitly disclose generating, for transmission to the base station, a UL synchronization request, the UL synchronization request for transmission via layer 1 (L1), layer 2 (L2), or layer 3 (L3) signaling. Referring to the invention of Zhang-1397, Zhang-1397 teaches generating, for transmission to the base station, a UL synchronization request, the UL synchronization request for transmission via layer 1 (L1), layer 2 (L2), or layer 3 (L3) signaling (Zhang-1397: Fig. 1, ¶ 34; wherein the WTRU has buffered (user) data to transmit in to a Node-B (step 105), but needs to have a scheduling grant for uplink data transmission… then the WTRU transmits a full-version uplink scheduling request to the Node-B as L1/L2 control signaling or higher layer signaling… when at least a predetermined number of sub-frames elapsed since the last time a full-version UL scheduling request was transmitted and the WTRU has a scheduling grant). Thus, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to incorporate the uplink scheduling request via L1/L2 teachings of Zhang-1397 into the uplink synchronization process as taught by Xu-3892 in order to reduce interruption and improve responsiveness. Allowable Subject Matter Claims 7, 8, and 10 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The following is a statement of reasons for the indication of allowable subject matter: Regarding claim 7, the prior art of record fail to disclose, alone or in any reasonable combination, as required by the dependent claim “initiating countdown of a timer at a same time that a countdown of a timing alignment timer (TAT) is initiated, a countdown time of the timer being shorter than a countdown time of the TAT, wherein identifying that the UL is out of synchronization comprises identifying an expiration of the timer that occurs prior to transmission of the non-preamble UL transmission”. Regarding claim 8, the prior art of record fail to disclose, alone or in any reasonable combination, as required by the dependent claim “identifying a time that a timing alignment timer (TAT) is to expire; identifying a window including a certain amount of time prior to the expiration of the TAT; and identifying that the non-preamble UL transmission has not been transmitted prior to the window”. Regarding claim 10, the prior art of record fail to disclose, alone or in any reasonable combination, as required by the dependent claim “wherein the UL synchronization state that is determined to be out of synchronization corresponds to a first timing advance group (TAG), and wherein transmitting the UL synchronization request comprises transmitting the UL synchronization request via a second TAG”. The Examiner notes the above limitation(s) are not taken alone but in view of the entirety of the claim language including any preceding claim limitations, any proceeding claim limitations, and any intervening claim limitations. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Gao e al. [US 20200127726 A1]: System and Method for Allocating Resources. Gao teaches a UE that performs resynchronization procedure when it is out of sync with the base station. Suzuki et al. [US 20140086219 A1]: Uplink Timing Maintenance Upon Time Alignment Timer Expiry. Suzuki teaches applying a TAC MAC CE for resuming uplink synchronization and TAT expiry processes. Bergquist et al. [US 20190007993 A1]: Signaling Reduction for Out-Of-Sync Users. Bergquist teaches continuous monitoring of the synchronization state of the UE and sending TAC MAC CE for the UE to restart the TAT and re-sync with the network. Any inquiry concerning this communication or earlier communications from the examiner should be directed to HIDAYAT DABIRI whose telephone number is (703)756-4541. The examiner can normally be reached M-F 8:00 am - 4:00 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, Edan Orgad can be reached on 571-272-7884. 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. /HD/Examiner, Art Unit 2414 /EDAN ORGAD/Supervisory Patent Examiner, Art Unit 2414
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Prosecution Timeline

Sep 07, 2023
Application Filed
Jun 30, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
70%
Grant Probability
84%
With Interview (+14.0%)
3y 4m (~6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 53 resolved cases by this examiner. Grant probability derived from career allowance rate.

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