Prosecution Insights
Last updated: April 19, 2026
Application No. 18/229,487

Method And Apparatus For Enhancements On Sidelink Over Unlicensed Spectrum Communication

Non-Final OA §102§103
Filed
Aug 02, 2023
Examiner
JAIN, RAJ K
Art Unit
2411
Tech Center
2400 — Computer Networks
Assignee
MediaTek Inc.
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
95%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
717 granted / 818 resolved
+29.7% vs TC avg
Moderate +8% lift
Without
With
+7.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
43 currently pending
Career history
861
Total Applications
across all art units

Statute-Specific Performance

§101
4.8%
-35.2% vs TC avg
§103
50.7%
+10.7% vs TC avg
§102
18.7%
-21.3% vs TC avg
§112
16.2%
-23.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 818 resolved cases

Office Action

§102 §103
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . General Remarks Examiner acknowledges Applicants election of Group II (claims 10-14) for Examination on the merits and withdrawal of claims 1-9 and 15-20 from further consideration. Examiner requires changing of indicator of non-elected claims from “Withdrawal” to “Cancel”. Claim Rejections - 35 USC §102(a)2 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 for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(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. Claim(s) 10-11,13-14 are rejected under 35 U.S.C. 102(a)(2) as being clearly anticipated by ELAZZOUNI et al (20240049283 A1) hereinafter as ELAZZOUNI. Regarding claim(s) 10, ELAZZOUNI discloses a method, comprising: performing, by a processor of an apparatus, a channel access procedure to initiate a channel occupancy time (COT) for sidelink (SL) over unlicensed spectrum (SL-U) communications with a peer apparatus (See Fig(s). 1, 3, See ¶ 75, the first sidelink UE may perform an LBT procedure or other CCA to gain access to the COT 320 in an unlicensed (e.g., shared) frequency spectrum.); retaining, by the processor, the COT by filling a gap between two consecutive transmissions. (See Fig(s). 14, step 1450, See ¶ 99, 171, If a COT sharing UE does not have data to transmit in its respective allocated time, the COT sharing UE may transmit random data to retain the COT.). Regarding claim(s) 11, ELAZZOUNI discloses wherein the filling of the gap between two consecutive transmissions comprises: transmitting, by the processor, a cyclic prefix extension (CPE) in one or more guard symbols (See ¶ 90, In some aspects, the COT sharing information may indicate the same cyclic prefix extension (CPE) length 412 allocated to the second sidelink UE). Regarding claim(s) 13, ELAZZOUNI discloses wherein the filling of the gap between two consecutive transmissions comprises: transmitting, by the processor, data or a pre-defined sequence in symbols corresponding to a physical sidelink feedback channel (PSFCH) occasion where no acknowledgement (ACK) or non-acknowledgement (NACK) is to be transmitted (See Fig(s). 14, step 1450, See ¶ 99, 171, If a COT sharing UE does not have data to transmit in its respective allocated time, the COT sharing UE may transmit random data to retain the COT….no ack is initiated for COT retention). Regarding claim(s) 14, ELAZZOUNI discloses wherein the data comprises physical sidelink shared channel (PSSCH) data (See ¶ 78,103), and wherein the pre-defined sequence comprises a PSFCH-like signal (See Fig(s). 1, See ¶ 114, the UE 115j may transmit the COT access request via a PSSCH, a PSCCH, a PSFCH, SCI, a MAC CE message, a unicast message, a groupcast message….. The UE 115i and the UE 115k may interpret the single bit PSFCH as a COT access request when there is no mapping of the PSFCH to a PSSCH.) Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 12 is/are rejected under 35 U.S.C. 103 as being unpatentable over ELAZZOUNI et al (20240049283 A1) hereinafter as ELAZZOUNI in view of Chien (20250386371 A1). Regarding claim(s) 12, Chien discloses wherein the one or more guard symbols comprise at least one of a first guard symbol before an automatic gain control (AGC) symbol of a physical sidelink feedback channel (PSFCH) and a second guard symbol at the end of an SL slot (See Fig(s). 8, See ¶ 438-439, 452-453A guard symbol can be reused for PSSCH transmission if the guard symbol is not present. An AGC symbol at the first symbol of an SL slot can be reused for PSSCH transmission if the guard symbol at the end of the previous SL slot is not indicated.). A guard period which allows Tx-Rx or Rx-Tx switching provides for proper synching between terminals of interest. Thus, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention, to incorporate the teachings of Chien within ELAZZOUNI, so as to provides for proper synching between terminals of interest. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Raj Jain whose telephone number is (571) 272-3145. The examiner can normally be reached on M-Th ~8 ~6. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Derrick Ferris can be reached on 571-272-3123. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from Patent Center. Status information for published applications may be obtained from Patent Center. Status information for unpublished applications is available through Patent Center for authorized users only. Should you have questions about access to Patent Center, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). 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) Form at https://www.uspto.gov/patents/uspto-automated- interview-request-air-form. /RAJ JAIN/ Primary Examiner, Art Unit 2411
Read full office action

Prosecution Timeline

Aug 02, 2023
Application Filed
Feb 02, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12568472
CHANNEL STATE INFORMATION REPORTING BASED ON SUB-RESOURCE POOLS FOR SIDELINK COMMUNICATIONS
2y 5m to grant Granted Mar 03, 2026
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2y 5m to grant Granted Mar 03, 2026
Patent 12568512
Method and Apparatus for Determining Sidelink Transmission Resource
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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
88%
Grant Probability
95%
With Interview (+7.6%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 818 resolved cases by this examiner. Grant probability derived from career allow rate.

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