Prosecution Insights
Last updated: April 19, 2026
Application No. 18/032,144

HARQ TIMING FOR DCI SCHEDULING MULTIPLE CELLS

Non-Final OA §102
Filed
Apr 14, 2023
Examiner
VU, HOANG-CHUONG Q
Art Unit
2476
Tech Center
2400 — Computer Networks
Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
3y 3m
To Grant
85%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
482 granted / 636 resolved
+17.8% vs TC avg
Moderate +9% lift
Without
With
+9.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
19 currently pending
Career history
655
Total Applications
across all art units

Statute-Specific Performance

§101
3.6%
-36.4% vs TC avg
§103
46.1%
+6.1% vs TC avg
§102
25.8%
-14.2% vs TC avg
§112
18.3%
-21.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 636 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 . Claims 1-20 and 22 are currently pending. Drawings Figure 1 should be designated by a legend such as --Prior Art-- because only that which is old is illustrated. See MPEP § 608.02(g). Corrected drawings in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. The replacement sheet(s) should be labeled “Replacement Sheet” in the page header (as per 37 CFR 1.84(c)) so as not to obstruct any portion of the drawing figures. If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. Claim Rejections - 35 USC § 102 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. 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) 1-20 and 22 is/are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Bae et al. (US 20220029758 A1). Regarding claim 1, Bae et al. disclose a method performed by a wireless communication device operable in a cellular communications system, the method comprising: receiving, from a base station, a downlink control information (DCI) that schedules downlink transmissions to the wireless communication device on two or more serving cells of the wireless communication device; receiving and decoding the downlink transmissions on the two or more serving cells scheduled by the DCI (paragraph [0033]; scheduling of downlink transmissions (e.g., physical downlink shared channel (PDSCH) transmissions) on multiple cells by a single downlink control information (DCI) in a PDCCH. A UE provides a acknowledgment for the downlink transmission on each cell of the multiple cells); determining a slot in which to transmit Hybrid Automatic Repeat Request (HARQ) feedback for the downlink transmissions on the two or more serving cells scheduled by the DCI based on a single HARQ feedback timing indicator comprised in the DCI and a reference timing (paragraph [0080]; one PUCCH resource may be used to transmit the acknowledgments (e.g., HARQ-ACK bits) for the PDSCHs scheduled by the DCI) (paragraphs [0081-0082]; One field may be used for all N cells. The field may include TDRA, PDSCH-to-HARQ feedback timing indicator K1, and PRI. Applying the single field for all cells indicates the same PUCCH slot) (paragraph [0089]; a single PUCCH may be used to transmit the acknowledgments for the PDSCHs scheduled by the DCI. When using a single PUCCH, one or multiple DAI fields may be provided) (paragraph [0088]; multiple DAI fields may be used since a DAI may relate to one reference PUCCH slot); and transmitting, to the base station, HARQ feedback for the downlink transmissions on the two or more serving cells scheduled by the DCI in the determined slot (paragraph [0080]; one PUCCH resource may be used to transmit the acknowledgments (e.g., HARQ-ACK bits) for the PDSCHs scheduled by the DCI) (paragraphs [0081-0082]; applying the single field for all cells indicates the same PUCCH slot. The PUCCH resource (slot) may be determined according to a field (Single field for TDRA, K1, and PRI. The field may include TDRA, PDSCH-to-HARQ_feedback timing indicator K1, and PRI)). Regarding claim 2, Bae et al. further suggest wherein the reference timing is a slot in which one of the downlink transmissions that is scheduled for a reference cell ends (paragraph [0083]; UE may select a single PUCCH slot and resource from the N slots and resources according a reference cell may be used to obtain the PUCCH slot and resource) (paragraph [0091]; one PUCCH slot may be assumed as each DAI field may be with respect to one PUCCH slot). Regarding claim 3, Bae et al. further suggest wherein the reference cell is one of the two or more serving cells for which the DCI schedules the downlink transmissions (paragraph [0079]; one or more PDSCH cells may be used as a reference cell to determine the actual PUCCH). Regarding claim 4, Bae et al. further suggest wherein the reference cell is configured by a base station in the cellular communications system (paragraph [0079]; one or more PDSCH cells may be used as a reference cell) (paragraph [0040]; serving cells are configured by gNB). Regarding claim 5, Bae et al. further suggest receiving, from the base station, information that configures the reference cell (paragraph [0079]; one or more PDSCH cells may be used as a reference cell to determine the actual PUCCH) (paragraph [0040]; serving cells are configured by gNB). Regarding claim 6, Bae et al. further suggest wherein receiving the information that configures the reference cell comprise receiving the information that configures the reference cell via higher layer signaling (paragraph [0079]; one or more PDSCH cells may be used as a reference cell to determine the actual PUCCH) (paragraph [0132]; serving cells set is configured by higher layer for the UE). Regarding claim 7, Bae et al. further suggest wherein the reference cell is predefined (paragraph [0083]; reference cell may be used to obtain the PUCCH slot and resource). Regarding claim 8, Bae et al. further suggest wherein the reference cell is one of the two or more serving cells on which the wireless communication device receives the DCI (paragraph [0080]; DCI schedules multiple cells. A PDCCH on a scheduling cell may schedule N PDSCHs on N serving cells) (paragraph [0079]; one or more PDSCH cells may be used as a reference cell to determine the actual PUCCH). Regarding claim 9, Bae et al. further suggest wherein the reference cell is one of the two or more serving cells for which the DCI schedules the downlink transmissions that has a lowest cell index from among cell indices of the two or more serving cells (paragraphs [0082-0084]; applying the single field from the DCI for all cells indicates the same PUCCH slot. A reference cell (of the N cells) may be used/selected to obtain the single PUCCH slot and resource. The PUCCH resource may be determined according to the PRI field (from the DCI) corresponding to the serving cell with the largest or smallest cell index among the N cells). Regarding claim 10, Bae et al. further suggest wherein the reference cell is one of the two or more serving cells for which the DCI schedules the downlink transmissions that has a highest cell index from among cell indices of the two or more serving cells (paragraphs [0082-0084]; applying the single field from the DCI for all cells indicates the same PUCCH slot. A reference cell (of the N cells) may be used/selected to obtain the single PUCCH slot and resource. The PUCCH resource may be determined according to the PRI field (from the DCI) corresponding to the serving cell with the largest or smallest cell index among the N cells). Regarding claim 11, Bae et al. further suggest wherein the reference cell is one of the two or more serving cells for which the DCI schedules the downlink transmissions selected as a function of cell indices of the two or more serving cells (paragraph [0095]; For a PDCCH scheduling N different cells, a single field for (C-DAI, T-DAT) may be present in the DCI. The value of C-DAI on a PDCCH scheduling serving cells with indices i1, i2, . . . , iN may denote the accumulative number of {serving cell, PDCCH monitoring occasion}-pairs in which PDSCH reception associated with a DCI format up to the current serving cell) (paragraph [0079]; one or more PDSCH cells may be used as a reference cell). Regarding claim 12, Bae et al. further suggest wherein the determined slot is slot X+Y, where X is the slot in which one of the downlink transmissions that is scheduled for a reference cell ends and Y is a number of slots indicated by the single HARQ feedback timing indicator comprised in the DCI (paragraphs [0124] [0128]; With reference to slots for PUCCH transmissions, when a UE receives in a PDSCH for a cell ending in slot n, the UE applies in the earliest slot after n+k (X+Y) in which the serving cell is active. The value of k is a number of slots for a PUCCH transmission with HARQ-ACK information for the PDSCH reception and is indicated by the PDSCH-to-HARQ feedback timing indicator field in the DCI format scheduling the PDSCH reception). Regarding claim 13, Bae et al. further suggest wherein the reference cell is one of the two or more serving cells for which the DCI schedules the downlink transmissions defined by a position in which corresponding scheduling information occurs in the DCI (paragraph [0079]; a single parameter for K1 and a single parameter for the PRI (position value for PUCCH resource to transmit HARQ-ACK bits for the PDSCHs scheduled by the DCI) may be provided, and the actual PUCCH may be determined based on the latest PUCCH among hypothetically constructed PUCCHs corresponding to the PDSCH numerology and/or allocation parameter for each cell or based on the earliest PUCCH satisfying a PDSCH processing time for ail cells among hypothetically constructed PUCCHs corresponding to the PDSCH numerology and/or allocation parameter of each cell, in some other embodiments, one or more PDSCH cells may be used as a reference cell). Regarding claim 14, Bae et al. further suggest wherein the reference timing is a reference slot (paragraph [0089]; a single PUCCH may be used to transmit the acknowledgments for the PDSCHs scheduled by the DCI. When using a single PUCCH, one or multiple DAI fields may be provided) (paragraph [0088]; multiple DAI fields may be used since a DAI may relate to one reference PUCCH slot). Regarding claim 15, Bae et al. further suggest wherein the reference slot is a slot in which a last-ending downlink transmission from among the downlink transmissions scheduled by the DCI ends (paragraph [0083]; UE may select a single PUCCH slot and resource from the N slots and resources according a reference cell may be used to obtain the PUCCH slot and resource) (paragraph [0091]; one PUCCH slot may be assumed as each DAI field may be with respect to one PUCCH slot). Regarding claim 16, Bae et al. further suggest wherein the reference slot is counted according to a numerology of one of the two or more serving cells that carries the last-ending downlink transmission (paragraph [0124] [0079]; reference to slots for PUCCH transmissions, when a UE receives in a PDSCH for a secondary cell ending in slot n. PUCCH may be determined based on the latest PUCCH among hypothetically constructed PUCCHs corresponding to the PDSCH numerology and/or allocation parameter for each cell). Regarding claim 17, Bae et al. further suggest wherein the determined slot is slot X+Y, where X is the reference slot and Y is a number of slots indicated by the single HARQ feedback timing indicator comprised in the DCI (paragraphs [0124] [0128]; With reference to slots for PUCCH transmissions, when a UE receives in a PDSCH for a cell ending in slot n, the UE applies in the earliest slot after n+k (X+Y) in which the serving cell is active. The value of k is a number of slots for a PUCCH transmission with HARQ-ACK information for the PDSCH reception and is indicated by the PDSCH-to-HARQ feedback timing indicator field in the DCI format scheduling the PDSCH reception). Regarding claim 18, Bae et al. further suggest wherein the downlink transmissions are Physical Downlink Shared Channels (PDSCHs) (paragraph [0033]; scheduling of downlink transmissions (e.g., physical downlink shared channel (PDSCH) transmissions) on multiple cells by a single downlink control information (DCI) in a PDCCH). Regarding claim 19, Bae et al. further suggest wherein at least two of the two or more serving cells use different numerologies (paragraph [0045]; cells having different numerologies). Regarding claim 20, Bae et al. disclose a wireless communication device for a cellular communication system, the wireless communication device adapted to: receive, from a base station, a downlink control information(DCI) that schedules downlink transmissions to the wireless communication device on two or more serving cells of the wireless communication device; receive and decode the downlink transmissions on two or more serving cells scheduled by the DCI (paragraph [0033]; scheduling of downlink transmissions (e.g., physical downlink shared channel (PDSCH) transmissions) on multiple cells by a single downlink control information (DCI) in a PDCCH. A UE provides an acknowledgment for the downlink transmission on each cell of the multiple cells); determine a slot in which to transmit Hybrid Automatic Repeat Request (HARQ) feedback for the downlink transmissions on two or more serving cells scheduled by the DCI based on a single HARQ feedback timing indicator comprised in the DCI and a reference timing (paragraph [0080]; one PUCCH resource may be used to transmit the acknowledgments (e.g., HARQ-ACK bits) for the PDSCHs scheduled by the DCI) (paragraphs [0081-0082]; One field may be used for all N cells. The field may include TDRA, PDSCH-to-HARQ feedback timing indicator K1, and PRI. Applying the single field for all cells indicates the same PUCCH slot) (paragraph [0089]; a single PUCCH may be used to transmit the acknowledgments for the PDSCHs scheduled by the DCI. When using a single PUCCH, one or multiple DAI fields may be provided) (paragraph [0088]; multiple DAI fields may be used since a DAI may relate to one reference PUCCH slot); and transmit, to the base station, HARQ feedback for the downlink transmissions on two or more serving cells scheduled by the DCI in the determined slot (paragraph [0080]; one PUCCH resource may be used to transmit the acknowledgments (e.g., HARQ-ACK bits) for the PDSCHs scheduled by the DCI) (paragraphs [0081-0082]; applying the single field for all cells indicates the same PUCCH slot. The PUCCH resource (slot) may be determined according to a field (Single field for TDRA, K1, and PRI. The field may include TDRA, PDSCH-to-HARQ_feedback timing indicator K1, and PRI)). Regarding claim 22, Bae et al. disclose a wireless communication device for a cellular communication system, the wireless communication device comprising: one or more transmitters; one or more receivers; and processing circuitry associated with the one or more transmitters and the one or more receivers, the processing circuitry configured to cause the wireless communication device to: receive, from a base station, a downlink control information (DCI) that schedules downlink transmissions to the wireless communication device on two or more serving cells of the wireless communication device; receive and decode the downlink transmissions on two or more serving cells scheduled by the DCI (paragraph [0033]; scheduling of downlink transmissions (e.g., physical downlink shared channel (PDSCH) transmissions) on multiple cells by a single downlink control information (DCI) in a PDCCH. A UE provides an acknowledgment for the downlink transmission on each cell of the multiple cells); determine a slot in which to transmit Hybrid Automatic Repeat Request (HARQ) feedback for the downlink transmissions on two or more serving cells scheduled by the DCI based on a single HARQ feedback timing indicator comprised in the DCI and a reference timing (paragraph [0080]; one PUCCH resource may be used to transmit the acknowledgments (e.g., HARQ-ACK bits) for the PDSCHs scheduled by the DCI) (paragraphs [0081-0082]; One field may be used for all N cells. The field may include TDRA, PDSCH-to-HARQ feedback timing indicator K1, and PRI. Applying the single field for all cells indicates the same PUCCH slot) (paragraph [0089]; a single PUCCH may be used to transmit the acknowledgments for the PDSCHs scheduled by the DCI. When using a single PUCCH, one or multiple DAI fields may be provided) (paragraph [0088]; multiple DAI fields may be used since a DAI may relate to one reference PUCCH slot); and transmit, to the base station, HARQ feedback for the downlink transmissions on two or more serving cells scheduled by the DCI in the determined slot (paragraph [0080]; one PUCCH resource may be used to transmit the acknowledgments (e.g., HARQ-ACK bits) for the PDSCHs scheduled by the DCI) (paragraphs [0081-0082]; applying the single field for all cells indicates the same PUCCH slot. The PUCCH resource (slot) may be determined according to a field (Single field for TDRA, K1, and PRI. The field may include TDRA, PDSCH-to-HARQ_feedback timing indicator K1, and PRI)). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HOANG-CHUONG Q VU whose telephone number is (571)270-3945. The examiner can normally be reached Monday-Friday (9:30-5:30 PM EST.). Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, AYAZ SHEIKH can be reached at 571-272-3795. 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. HOANG-CHUONG Q. VU Primary Examiner Art Unit 2476 /HOANG-CHUONG Q VU/Primary Examiner, Art Unit 2476
Read full office action

Prosecution Timeline

Apr 14, 2023
Application Filed
Mar 25, 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
76%
Grant Probability
85%
With Interview (+9.1%)
3y 3m
Median Time to Grant
Low
PTA Risk
Based on 636 resolved cases by this examiner. Grant probability derived from career allow rate.

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