Prosecution Insights
Last updated: April 19, 2026
Application No. 18/409,621

METHOD AND APPARATUS FOR TRANSMITTING SIDELINK POSITIONING REFERENCE SIGNAL IN A WIRELESS COMMUNICATION SYSTEM

Non-Final OA §102
Filed
Jan 10, 2024
Examiner
CATTUNGAL, AJAY P
Art Unit
2467
Tech Center
2400 — Computer Networks
Assignee
Asus Technology Licensing Inc.
OA Round
1 (Non-Final)
89%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
96%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allow Rate
795 granted / 895 resolved
+30.8% vs TC avg
Moderate +7% lift
Without
With
+6.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
17 currently pending
Career history
912
Total Applications
across all art units

Statute-Specific Performance

§101
5.8%
-34.2% vs TC avg
§103
43.2%
+3.2% vs TC avg
§102
31.2%
-8.8% vs TC avg
§112
3.7%
-36.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 895 resolved cases

Office Action

§102
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 . Specification The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification. 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)(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) 11-14, and 16-19 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Kumar et al. (US 2025/0106878 A1). Regarding claim 11, Kumar et al. discloses a method, of a first device for performing sidelink reference signal transmission, comprising: receiving configuration for configuring a first dedicated sidelink resource pool for transmitting Sidelink Positioning Reference Signal (SL-PRS) (Para 188 teaches of configuring separate resource pool for SL-PRS), wherein each slot in the first dedicated sidelink resource pool comprises Orthogonal Frequency Division Multiplexing (OFDM) symbols for Physical Sidelink Control Channel (PSCCH) (Para 167 teaches of OFDM symbol for PSCCH) and OFDM symbols for SL-PRS (Para 160 teaches of OFDM symbol for SL-PRS); and determining an SL-PRS-Received Signal Strength Indicator (RSSI) based on an SL-PRS resource in OFDM symbols configured for the SL-PRS resource and corresponding PSCCH in the OFDM symbols for PSCCH in a slot. (Para 163 teaches “ Each configured resource pool indicates the PSCCH used to reserve one or more SL-PRS configurations, the parameters of the one or more SL-PRS configurations” and Para 166-167 teaches of determining the SL-RSSI measurement for the configured OFDM symbol for the slot for PSCCH). Regarding claim 12, Kumar et al. discloses a method, wherein: one SL-PRS resource with one Resource Element (RE) or comb offset spreads bandwidth of the first dedicated sidelink resource pool; and/or each SL-PRS resource in the first dedicated sidelink resource pool spreads bandwidth of the first dedicated sidelink resource pool; and/or OFDM symbols for PSCCH and OFDM symbols for SL-PRS are separated in one slot (Para 163 teaches of comb offset of the SL-PRS). Regarding claim 13, Kumar et al. discloses a method, wherein: the determination of the SL-PRS-RSSI is based on linear average signal strength of the SL-PRS resource in OFDM symbols configured for the SL-PRS resource and corresponding PSCCH in the OFDM symbols for PSCCH in a slot. (Para 167 teaches “SL-RSSI is defined as the linear average of the total received power (e.g., in Watts) observed in the configured sub-channel in OFDM symbols of a slot configured for PSCCH and PSSCH, starting from the second OFDM symbol. “). Regarding claim 14, Kumar et al. discloses a method, further comprising: determining SL-PRS-Channel Occupancy Ratio (CR) in a slot based on a first ratio, wherein the first ratio is a first number of SL-PRS resources, granted or used by the first device in a first time interval, divided by a total number of SL-PRS resources in the first time interval; and/or determining SL-PRS-Channel Busy Ratio (CBR) in a slot based on a second ratio, wherein the second ratio is a second number of SL-PRS resources, corresponding to an SL-PRS-RSSI larger than a threshold in a second time interval, divided by a total number of SL-PRS resources in the second time interval. (Para 166 teaches “A UE may use two types of measurements to detect and mitigate the effect of congestion when Mode 2 resource allocation is applied: sidelink channel busy ratio (SL CBR) and sidelink channel occupancy ratio (SL CR). More specifically, the SL CBR (or simply CBR) can be used by UEs and other network entities (if reported) to manage the channel load and, if necessary, adapt the resources dedicated to sidelink. The CBR measured in a slot n is defined as the portion of sub-channels in the resource pool whose sidelink received signal strength indication (SL-RSSI) measured by the UE exceeds a (pre-) configured threshold sensed over a CBR measurement window [n-a, n−1], where a is equal to 100 or 100.Math.2.sup.μ slots, according to the higher layer parameter “sl-Time WindowSizeCBR.” As such, CBR measurements reflect the congestion on the medium. CBR measurements are applicable for RRC IDLE intra-frequency, RRC IDLE inter-frequency, RRC CONNECTED intra-frequency, and RRC CONNECTED inter-frequency.”) Regarding claim 16, Kumar et al. discloses a method, wherein: the received configuration further configures a second sidelink resource pool for PSSCH and optionally for SL-PRS; and/or the first device determines SL RSSI based on sub-channels of PSSCH in OFDM symbols and sub- channels of a corresponding PSCCH in OFDM symbols in a slot. (Para 167 teaches “ SL-RSSI is defined as the linear average of the total received power (e.g., in Watts) observed in the configured sub-channel in OFDM symbols of a slot configured for PSCCH and PSSCH, starting from the second OFDM symbol.”). Regarding claim 17, Kumar et al. discloses a method, further comprising: determining SL CR in a slot based on a first ratio, wherein the first ratio is a first number of sub- channels, granted or used by the first device in a first time interval, divided by a total number of sub-channels in the first time interval; and/or determining SL CBR in a slot based on a second ratio, wherein the second ratio is a second number of sub-channels, corresponding to an SL RSSI larger than a threshold in a second time interval, divided by a total number of sub-channels in the second time interval. (Para 166 teaches “A UE may use two types of measurements to detect and mitigate the effect of congestion when Mode 2 resource allocation is applied: sidelink channel busy ratio (SL CBR) and sidelink channel occupancy ratio (SL CR). More specifically, the SL CBR (or simply CBR) can be used by UEs and other network entities (if reported) to manage the channel load and, if necessary, adapt the resources dedicated to sidelink. The CBR measured in a slot n is defined as the portion of sub-channels in the resource pool whose sidelink received signal strength indication (SL-RSSI) measured by the UE exceeds a (pre-) configured threshold sensed over a CBR measurement window [n-a, n−1], where a is equal to 100 or 100.Math.2.sup.μ slots, according to the higher layer parameter “sl-Time WindowSizeCBR.” As such, CBR measurements reflect the congestion on the medium. CBR measurements are applicable for RRC IDLE intra-frequency, RRC IDLE inter-frequency, RRC CONNECTED intra-frequency, and RRC CONNECTED inter-frequency.”). Regarding claim 18, Kumar et al. discloses a method, wherein: when the first device attempts to or has or determines to perform sidelink transmission in the first dedicated sidelink resource pool for SL-PRS, wherein the sidelink transmission is associated with a first priority, the first device utilizes the first priority for checking CR limit; and/or when the first device attempts to or has or determines to transmit a PSSCH and an SL-PRS in a same 65slot in the second sidelink resource pool, the first device utilizes a higher priority between PSSCH priority and SL-PRS priority for checking CR limit. (Para 166-168 and Para 172-173 teaches of UE in mode 2 and UE may list the resources reserving it in priority order ). Regarding claim 19, Kumar et al. discloses a method, wherein: the OFDM symbols for SL-PRS in a slot comprises one or more SL-PRS occasions in the slot wherein the one or more SL-PRS occasions comprises at least a first SL-PRS occasion and a second SL-PRS occasion, which are separated in different OFDM symbols; and/or a first SL-PRS resource in the first SL-PRS occasion is configured with a same or different comb size than a second SL-PRS resource in the second SL-PRS occasion; and/or a first SL-PRS resource in the first SL-PRS occasion is configured with same or different contiguous OFDM symbols than a second SL-PRS resource in the second SL-PRS occasion; and/or a first SL-PRS resource in the first SL-PRS occasion is configured with a same or different starting OFDM symbol than a second SL-PRS resource in the second SL-PRS occasion. (Para 163 The one or more SL-PRS configurations within the resource pool specify the number of symbols occupied by the SL-PRS, the comb type of the SL-PRS, the comb offset of the SL-PRS, the number of subchannels occupied by the SL-PRS, the subchannel size, and the starting resource block (RB). Para 189 teaches ” More specifically, a conflict with a periodic SL-PRS resource occasion (or repetition) may be automatically addressed by the next SL-PRS occasion (repetition). That is, if one occasion of a periodic SL-PRS resource cannot be measured because of a conflict, the receiver can simply measure the next occasion of the periodic SL-PRS resource”) Allowable Subject Matter Claim 15 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. Claims 1-10 and 20 are allowed. The following is an examiner’s statement of reasons for allowance: As per independent claim 1, the art of the record fails to teach nor would it have been obvious that the combination of the prior art teach these limitations in combination with all of the other limitations of the claim of: using, when the first device attempts to transmit PSSCH and a second SL-PRS in the second sidelink resource pool in slot m, Sidelink Channel Occupancy Ratio (SL CR) and Sidelink Channel Busy Ratio (SL CBR) evaluated or measured or determined in slot m-k2 for the PSSCH and the second SL-PRS, wherein k2 corresponds to a second congestion control processing time; and using, when the first device attempts to transmit a first SL-PRS in the first dedicated sidelink resource pool in slot n, SL-PRS-CR and SL-PRS-CBR evaluated or measured or determined in slot n-kl for the first SL-PRS, wherein k1 corresponds to a first congestion control processing time which is larger than or equal to k2. As per independent claim 20, the art of the record fails to teach nor would it have been obvious that the combination of the prior art teach these limitations in combination with all of the other limitations of the claim of: use, when the first device attempts to transmit PSSCH and a second SL-PRS in the second sidelink resource pool in slot m, Sidelink Channel Occupancy Ratio (SL CR) and Sidelink Channel Busy Ratio (SL CBR) evaluated or measured or determined in slot m-k2 for the PSSCH and the second SL-PRS, wherein k2 corresponds to a second congestion control processing time; and use, when the first device attempts to transmit a first SL-PRS in the first dedicated sidelink resource pool in slot n, SL-PRS-CR and SL-PRS-CBR evaluated or measured or determined in slot n-kl for the first SL-PRS, wherein k1 corresponds to a first congestion control processing time which is larger than or equal to k2. The closes prior art is Kumar et al. US 2025/0324222 A1 teaches of the first resource pool for SL-PSR and second resource pool for PSSCH. Kumar et al. also teaches of performing SL-CR and SL-CBR on two slot n and slot n-N. Where N is the congestion control processing time. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to AJAY P CATTUNGAL whose telephone number is (571)270-7525. The examiner can normally be reached M-F 9:00-5:00 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, Hassan Phillips can be reached at 5712723940. 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. /AJAY CATTUNGAL/Primary Examiner, Art Unit 2467
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Prosecution Timeline

Jan 10, 2024
Application Filed
Feb 07, 2026
Non-Final Rejection — §102 (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
89%
Grant Probability
96%
With Interview (+6.7%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 895 resolved cases by this examiner. Grant probability derived from career allow rate.

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