Prosecution Insights
Last updated: April 19, 2026
Application No. 18/293,955

METHOD AND APPARATUS FOR HARQ-ACK CODEBOOK DETERMINATION FOR MULTI-SLOT SCHEDULING

Non-Final OA §102
Filed
Jan 31, 2024
Examiner
KRUEGER, KENT K
Art Unit
2474
Tech Center
2400 — Computer Networks
Assignee
Lenovo (Beijing) Limited
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
94%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allow Rate
389 granted / 445 resolved
+29.4% vs TC avg
Moderate +7% lift
Without
With
+6.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
18 currently pending
Career history
463
Total Applications
across all art units

Statute-Specific Performance

§101
3.0%
-37.0% vs TC avg
§103
45.7%
+5.7% vs TC avg
§102
26.0%
-14.0% vs TC avg
§112
13.9%
-26.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 445 resolved cases

Office Action

§102
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . A preliminary amendment received on 11/15/2023 amending claims 1-2 and 5-6, canceling claims 3-4 and 7-15, and adding claims 16-31 has been entered by the examiner. Information Disclosure Statement The information disclosure statements (IDSs) submitted on 4/30/2024 and 5/21/2025 have been entered and considered by the examiner. 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 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. Claims 1-2,5-6 and 16-31 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Gao et al (US2023/0171040 A1). Regarding claims 1,16, and 23, Gao teaches a method/user equipment (UE)/ processor performed by a user equipment (UE) for wireless communications (Abstract; Para. 0049), the method comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the UE to (Para. 0049): receiving a set of first downlink control information (DCI) formats for scheduling a first group of physical downlink shared channels (PDSCHs), each of the first DCI formats scheduling at least one PDSCH on a serving cell of the UE (Paras. 0005-0012, 0087-0095, and 0108; Step 41: receiving one or more DCIs, wherein the one or more DCIs include one or more first DCIs used for scheduling a plurality of PDSCHs; It should be further noted that the first DCI and the second DCI are two DCI formats; i.e. If the base station is sending DCI and PDSCH to the UE, it is serving the UE) and indicating a first downlink assignment indicator (DAI), and the first DAI indicating an accumulative number of PDSCHs among the first group of PDSCHs (Paras. 0005-0012, 0023, 0087-0095, and 0108; generating HARQ-ACKs of A*B bits for the PDSCHs or the SPS PDSCH release scheduled by the DCI; mapping the HARQ-ACKs of the A*B bits to locations, determined according to the DAI in the corresponding DCI, in the HARQ-ACK sub-codebook; determining a size of the HARQ-ACK sub-codebook according to the DAI in the DCI in the DCI group; generating a NACK at a location, in the HARQ-ACK sub-codebook, where information is not received, wherein A is a quantity of HARQ-ACK bits corresponding to each PDSCH or each SPS PDSCH release scheduled by the DCI, B is a quantity of PDSCHs scheduled by the DCI; i.e. B would indicate the number of PDSCHs); receiving a set of second DCI formats for scheduling a second group of PDSCHs, each of the second DCI formats scheduling a maximum of one PDSCH on a serving cell of the UE and indicating a second DAI, and the second DAI indicating an accumulative number of physical downlink control channel (PDCCH) transmissions carrying the second DCI formats (Paras. 0005-0012, 0023, 0087-0095; the one or more DCIs further include a second DCI used to indicate a Semi-Persistent Scheduling (SPS) PDSCH release or schedule one PDSCH; i.e. one PDSCH would read on a maximum of one PDSCH and each DCI would contain DAI); and transmitting a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook including a first HARQ-ACK sub-codebook for the first group of PDSCHs and a second HARQ-ACK sub-codebook for the second group of PDSCHs (Paras. 0005-0012, 0023, 0087-0095; generating a HARQ-ACK sub-codebook for each DCI group of the one or more DCI groups; generating an HARQ-ACK codebook according to the HARQ-ACK sub-codebook for each DCI group; transmitting the HARQ-ACK codebook). Regarding claims 2, 17, 24, and 29, Gao teaches the limitations of the previous claims. Gao further teaches wherein DAIs of the first DCI formats and DAIs of the second DCI formats are counted independently (Paras. 0005-0012, 0023, 0087-0095, and 0108; generating HARQ-ACKs of A*B bits for the PDSCHs or the SPS PDSCH release scheduled by the DCI; mapping the HARQ-ACKs of the A*B bits to locations, determined according to the DAI in the corresponding DCI, in the HARQ-ACK sub-codebook; determining a size of the HARQ-ACK sub-codebook according to the DAI in the DCI in the DCI group; generating a NACK at a location, in the HARQ-ACK sub-codebook, where information is not received, wherein A is a quantity of HARQ-ACK bits corresponding to each PDSCH or each SPS PDSCH release scheduled by the DCI, B is a quantity of PDSCHs scheduled by the DCI; i.e. each DCI could have a different number of PDSCHs and thus would be counted independently). Regarding claims 5, 20, 26, and 30, Gao teaches the limitations of the previous claims. Gao further teaches wherein the first DAI indicates one of: an accumulative number of dynamically scheduled PDSCHs plus a number of PDCCH transmissions for semi-persistent scheduling (SPS) PDSCH release; an accumulative number of dynamically scheduled PDSCHs and SPS PDSCHs plus the number of PDCCH transmissions for SPS PDSCH release; an accumulative number of dynamically scheduled PDSCHs; and an accumulative number of dynamically scheduled PDSCHs and SPS PDSCHs (Paras. 0005-0012, 0023, 0087-0095, and 0108; generating HARQ-ACKs of A*B bits for the PDSCHs or the SPS PDSCH release scheduled by the DCI; mapping the HARQ-ACKs of the A*B bits to locations, determined according to the DAI in the corresponding DCI, in the HARQ-ACK sub-codebook; determining a size of the HARQ-ACK sub-codebook according to the DAI in the DCI in the DCI group; generating a NACK at a location, in the HARQ-ACK sub-codebook, where information is not received, wherein A is a quantity of HARQ-ACK bits corresponding to each PDSCH or each SPS PDSCH release scheduled by the DCI, B is a quantity of PDSCHs scheduled by the DCI; i.e. B would indicate the number of PDSCHs which are scheduled by the DCI so would be dynamically scheduled). Regarding claims 6, 21, 27, and 31, Gao teaches the limitations of the previous claims. Gao further teaches wherein: the first HARQ-ACK sub-codebook is placed in a front of the HARQ-ACK codebook, followed by the second HARQ-ACK sub-codebook; or the second HARQ-ACK sub-codebook is placed in the front of the HARQ-ACK codebook, followed by the first HARQ-ACK sub-codebook (Paras. 0005-0012, 0023, 0087-0095, and 0108; generating the HARQ-ACK codebook according to the HARQ-ACK sub-codebook for each DCI group includes: concatenating at least two HARQ-ACK sub-codebooks for the at least two DCI groups in a predetermined order to form the HARQ-ACK codebook). Regarding claims 18 and 25, Gao teaches the limitations of the previous claims. Gao further teaches wherein a number of bits of the first DAI is determined based on a maximum number of PDSCHs scheduled by the first DCI format (Paras. 0005-0012, 0023, 0087-0095, and 0108-0110; when a HARQ-ACK sub-codebook is generated for this group, the maximum number of PDSCHs scheduled by a DCI in the group needs to be taken as the number of PDSCHs scheduled by one DCI in the group, that is, a value B in the following when determining the sub-codebook). Regarding claims 19 and 22, Gao teaches the limitations of the previous claims. Gao further teaches wherein a number of bits of the second DAI is smaller than the number of bits of the first DAT (Paras. 0005-0012, 0023, 0087-0095, and 0108; the one or more DCIs further include a second DCI used to indicate a Semi-Persistent Scheduling (SPS) PDSCH release or schedule one PDSCH; generating HARQ-ACKs of A*B bits for the PDSCHs or the SPS PDSCH release scheduled by the DCI; mapping the HARQ-ACKs of the A*B bits to locations, determined according to the DAI in the corresponding DCI, in the HARQ-ACK sub-codebook; determining a size of the HARQ-ACK sub-codebook according to the DAI in the DCI in the DCI group; generating a NACK at a location, in the HARQ-ACK sub-codebook, where information is not received, wherein A is a quantity of HARQ-ACK bits corresponding to each PDSCH or each SPS PDSCH release scheduled by the DCI, B is a quantity of PDSCHs scheduled by the DCI; i.e. B would indicate the number of PDSCHs which are scheduled by the DCI so would be dynamically scheduled; i.e. if there is only one PDSCH in the second DCI/DAI, there would be less bits needed to convey that). Regarding claim 28, Gao teaches a base station for wireless communications (Abstract; Para. 0049), comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the base station to (Para. 0049): transmit a set of first downlink control information (DCI) formats for scheduling a first group of physical downlink shared channels (PDSCHs), each of the first DCI formats scheduling at least one PDSCH on a cell (Paras. 0005-0016, 0087-0095, and 0108; Hybrid Automatic Repeat Request Acknowledge (HARQ-ACK) transmission method performed by a network side device is further provided in the present disclosure. The method includes: transmitting one or more DCIs, wherein the one or more DCIs include one or more first DCIs used for scheduling a plurality of PDSCHs; It should be further noted that the first DCI and the second DCI are two DCI formats; i.e. If the base station is sending DCI and PDSCH to the UE, it is serving the UE) and indicating a first downlink assignment indicator (DAI), and the first DAI indicating an accumulative number of PDSCHs among the first group of PDSCHs (Paras. 0005-0012, 0023, 0087-0095, and 0108; generating HARQ-ACKs of A*B bits for the PDSCHs or the SPS PDSCH release scheduled by the DCI; mapping the HARQ-ACKs of the A*B bits to locations, determined according to the DAI in the corresponding DCI, in the HARQ-ACK sub-codebook; determining a size of the HARQ-ACK sub-codebook according to the DAI in the DCI in the DCI group; generating a NACK at a location, in the HARQ-ACK sub-codebook, where information is not received, wherein A is a quantity of HARQ-ACK bits corresponding to each PDSCH or each SPS PDSCH release scheduled by the DCI, B is a quantity of PDSCHs scheduled by the DCI; i.e. B would indicate the number of PDSCHs); transmit a set of second DCI formats for scheduling a second group of PDSCHs, each of the second DCI formats scheduling a maximum of one PDSCH on a cell and indicating a second DAI, and the second DAI indicating an accumulative number of physical downlink control channel (PDCCH) transmissions carrying the second DCI formats (Paras. 0005-0012, 0023, 0087-0095; the one or more DCIs further include a second DCI used to indicate a Semi-Persistent Scheduling (SPS) PDSCH release or schedule one PDSCH; i.e. one PDSCH would read on a maximum of one PDSCH and each DCI would contain DAI); and receive a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook including a first HARQ-ACK sub-codebook for the first group of PDSCHs and a second HARQ-ACK sub-codebook for the second group of PDSCHs (Paras. 0005-0016, 0023, 0087-0095; receiving a HARQ-ACK codebook and obtaining a HARQ-ACK sub-codebook corresponding to each DCI group of one or more DCI groups, wherein the one or more DCI groups are obtained by grouping the one or more DCIs according to a quantity of PDSCHs scheduled by each of the one or more DCIs). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KENT KRUEGER whose telephone number is (303)297-4238. The examiner can normally be reached on M-F 8:00-5:00 MT. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Michael Thier can be reached on (571) 272-2832. 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 the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /KENT KRUEGER/Primary Examiner, Art Unit 2474
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Prosecution Timeline

Jan 31, 2024
Application Filed
Jan 09, 2026
Non-Final Rejection — §102
Apr 07, 2026
Interview Requested
Apr 13, 2026
Applicant Interview (Telephonic)
Apr 14, 2026
Examiner Interview Summary

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12593323
HYBRID AUTOMATIC REPEAT REQUEST (HARQ)-ACKNOWLEDGMENT (ACK) ENHANCEMENT FOR SEMI-PERSISTENT SCHEDULED (SPS) PHYSICAL DOWNLINK SHARED CHANNEL (PDSCH) IN AN UNLICENSED NEW RADIO SPECTRUM (NR-U)
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Patent 12587243
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2y 5m to grant Granted Mar 24, 2026
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
87%
Grant Probability
94%
With Interview (+6.6%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 445 resolved cases by this examiner. Grant probability derived from career allow rate.

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