Prosecution Insights
Last updated: April 19, 2026
Application No. 18/314,631

SUBBAND FULL DUPLEX CHANNEL STATE INFORMATION REFERENCE SIGNAL COMMUNICATION

Non-Final OA §103
Filed
May 09, 2023
Examiner
BELUR, DEEPA
Art Unit
2472
Tech Center
2400 — Computer Networks
Assignee
Qualcomm Incorporated
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
94%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
485 granted / 582 resolved
+25.3% vs TC avg
Moderate +11% lift
Without
With
+11.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
20 currently pending
Career history
602
Total Applications
across all art units

Statute-Specific Performance

§101
3.6%
-36.4% vs TC avg
§103
56.8%
+16.8% vs TC avg
§102
11.3%
-28.7% vs TC avg
§112
16.9%
-23.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 582 resolved cases

Office Action

§103
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 . Applicant’s election without traverse of Group II claims 18-25 and 28-30 in the reply filed on 11/12/2025 is acknowledged. Claims 1-17, 26-27 are canceled. Claims 18-25, 28-30 are amended. Claims 31-41 are new. Claims 18-25 and 28-41 are examined and rejected. Information Disclosure Statement The IDS filed on 6/10/2024 and the IDS filed on 9/19/2024 has been considered. Allowable Subject Matter Claims 24, 37 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. As allowable subject matter has been indicated, applicant's reply must either comply with all formal requirements or specifically traverse each requirement not complied with. See 37 CFR 1.111(b) and MPEP § 707.07(a). 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. Claim(s) 18-23, 25, 28-36, 38-41 is/are rejected under 35 U.S.C. 103 as being unpatentable over Deogun (US 20250379698 A1 having priority date of Aug 12, 2022) in view of Grant (US20250279865 A1). Regarding Claim 18, Deogun discloses a user equipment (UE) (see FIG. 20, UE) for wireless communications, comprising: one or more processors; one or more memories coupled with the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the UE to: receive, from a network entity, at least one control message indicating a first measurement configuration for channel state information measurement via a subband full duplex time interval (see para 273, the base station configures different CSI-RS settings for CSI-RS transmission during SBFD slots/symbols) and a second measurement configuration for channel state information measurement via a non-subband full duplex time interval (see FIG. 20, at step S2010 CSI-RS resource configuration (SFBD specific CSI-RS resource settings #1 (for FD (full duplex) slots); non-SFBD CSI-RS resource settings #2 (for TDD DL slots)), the subband full duplex time interval comprising two or more downlink subbands that are(see para 72, In subband overlapping FD, UL and DL may be configured in a similar way to subband non-overlapping FD, but the different subbands are allowed to overlap in frequency/i.e., representing an overlap in time-frequency domain); receive, from the network entity, one or more channel state information reference signals via the subband full duplex time interval in accordance with the first measurement configuration or via the non-subband full duplex time interval in accordance with the second measurement configuration (see para 274, at S2012 the UE performs CSI-RS measurement and reporting, the UE can perform the CSI-RS measurement and reporting based on one or more SBFD specific CSI-RS resource settings for SBFD slots/symbols and can perform the CSI-RS measurement and reporting based on one or more TDD specific CSI-RS resource settings for other (legacy) TDD slots/symbols/i.e., representing non-SBFD); and transmit, to the network entity, a report indicating channel state information that is based at least in part on the one or more channel state information reference signals (see FIG. 20, S2012 perform CSI-RS measurement for setting #1 or setting #2 and the UE performs CSI reporting). Deogun teaches receiving measurement configuration information for SBFD and non-SBFD for CSI reporting; SBFD downlink subbands that are contiguous and SBFD downlink subbands overlapping in frequency domain. Deogun does not specify two or more downlink subbands that are non-contiguous. In the same field of endeavor, Grant teaches this limitation: see paras 92-93, configuring reference signal (RS) resources with a non-contiguous frequency domain resource allocation in OFDM symbol(s) of a carrier configured for sub-band full duplex (SBFD) operation. It would have been obvious, to one having ordinary skill in the art, before the effective filing date of the claimed invention, to modify the system of Deogun to include SBFD downlink subbands that are non-contiguous, to provide flexibility in the configuration of reference signal resource allocations such as to, for example, match the subband configuration within a subband full duplex system (see Grant, para 93), and since NR is designed to support both contiguous and non-contiguous downlink (DL) subbands for SBFD. Regarding Claims 19, 32, Deogun discloses: the first measurement configuration indicates a first quantity of antenna ports or a first antenna configuration to use for channel state information measurement via the subband full duplex time interval (see para 276, One or more SBFD specific CSI-RS resource settings for SBFD slots/symbols may indicate which CSI-RS ports are valid (or invalid) for SBFD slots. This may, for example, be indicated as a configuration, per CSI-RS resource, indicating: a list, range, and/or mask of antenna port numbers; and/or a list, range, and/or mask of antenna panels), and the second measurement configuration indicates a second quantity of antenna ports or a second antenna configuration to use for channel state information measurement via the non-subband full duplex time interval (see paras 327-328, techniques for updating DL and/or UL transmission parameters (e.g., codebook parameters, ports, and/or the like) for the transmission and/or reception of data during SBFD slots… the UE may indicate a DL codebook to the base station (e.g., via CSI reports), which is determined for a full set of ports/antenna elements available for CSI-RS in non-SBFD slots/symbols… However, during SBFD slots some of the CSI-RS ports will likely be disabled for data transmission and/or reception (e.g., on the PDSCH and/or PUSCH). There is the potential, therefore, for the transmission parameters for DL data (e.g., on the PDSCH) transmitted by the base station in an SBFD slot to be based on a CSI report that is derived from CSI-RS transmitted in a non-SBFD DL slot/symbol; also see FIG. 29. paras 334-335, the base station configures (e.g., in the CSI report configuration) different (sets of) CSI reports to be provided based on different measurements of CSI-RS transmitted in the same legacy TDD slot. Specifically, one set of CSI-RS resources and associated CSI-RS reports may be configured for use in respect of non-SBFD (legacy TDD DL) slots, and another set of CSI-RS resources and associated CSI-RS reports may be configured for use in respect of SBFD slots. For example, one set of CSI-RS resources (and associated CSI-RS reports) may be for a full antenna set and another set of CSI-RS resources (and associated CSI-RS reports) may be configured for a reduced antenna set. Accordingly, the base station 5 may configure PDSCH transmission parameters for SBFD slots based on CSI reporting in respect of the reduced antenna set and may configure PDSCH transmission parameters for non-SBFD slots based on CSI reporting in respect of the full antenna set). Regarding Claims 20, 33, Deogun discloses: receiving measurement configuration for SBFD and non-SBFD configurations. Deogun does not disclose details regarding the TCI and QCL information in the measurement configuration, i.e.: the first measurement configuration indicates a first transmission configuration indicator state associated with channel state information measurement via the subband full duplex time interval and with first quasi co location information associated with the subband full duplex time interval, and the second measurement configuration indicates a second transmission configuration indicator state associated with channel state information measurement via the non- subband full duplex time interval and with second quasi co location information associated with the non-subband full duplex time interval. Grant discloses this limitation: see paras 42-43: multiple CSI-RS resources are configured as part of a CSI-RS resource set, and measurements are performed based on the resources in the set. A set is constructed by providing a list of CSI-RS resource IDs CSI-RS resource IDs are used is for configuration of transmission configuration indicator (TCI) states which provide the quasi co-location (QCL) sources, e.g., a CSI-RS resource, used for aiding the reception of other signals, e.g., PDSCH, physical downlink control channel (PDCCH); also see TABLEs 4-5. It would have been obvious, to one having ordinary skill in the art, before the effective filing date of the claimed invention, to modify the system of Deogun to include the TCI and QCL information in the measurement configuration as taught by Grant, for aiding the reception of other signals, e.g., PDSCH, physical downlink control channel (PDCCH) (see Grant, para 43). Regarding Claims 21, 29, 34 and 40, Deogun discloses: the instructions are further executable by the one or more processors to cause the UE to: receive at least one second control message indicating a first reporting configuration for channel state information associated with the subband full duplex time interval and a second reporting configuration for channel state information associated with the non- subband full duplex time interval (see FIG. 20, at step S2010 CSI-RS resource configuration (SFBD specific CSI-RS resource settings #1 (for FD slots); non-SFBD CSI-RS resource settings #1 (for TDD DL slots)), wherein the report is transmitted in accordance with the first reporting configuration or the second reporting configuration (see FIG. 20, S2012 perform CSI-RS measurement for setting #1 or setting #2 and the UE performs CSI reporting). Regarding Claims 22, 35, Deogun discloses: the first reporting configuration indicates for the UE to measure channel state information reference signals received via the subband full duplex time interval and to refrain from measuring channel state information reference signals received via the non-subband full duplex time interval, the second reporting configuration indicates for the UE to refrain from measuring channel state information reference signals received via the subband full duplex time interval and to measure channel state information reference signals received via the non-subband full duplex time interval, and the one or more channel state information reference signals are measured in accordance with the first reporting configuration or the second reporting configuration (see paras, 286-293, FIG. 23 illustrates a procedure in which the base station configures at least one CSI-RS resource with full set of ports and frequency resources corresponding to a (legacy) TDD DL slot/symbol. In FIG. 23 the CSI-RS resources configured in this way for a (legacy) TDD DL slot/symbol are referred to as TDD DL CSI-RS resources … As seen in FIG. 23, the base station provides CSI-RS configuration information (at S2310). The base station hen indicates to the UE that the CSI-RS resource will not be used for transmission in a specific set of time occasions. As indicated at S2312a the base station may indicate the time occasions as a part of a DCI indication. The DCI may indicate one or more CSI-RS resources in a given CSI resource set, to be deactivated/i.e., refrain from measurement, during the set of time occasions. As indicated at S2312b the base station may indicate (e.g., via RRC configuration signalling/MAC CE/DCI or the like) for which CSI-RS resource transmission is restricted. In this case the UE can determine (as seen at S2314) the associated time occasions based on SBFD time occasions signalling (i.e. the UE 3 can determine that CSI-RS will not be transmitted using one or more CSI-RS resources during a previously configured SBFD slot/symbol). The UE can then perform CSI-RS measurement and CSI reporting (at S2316) taking account of occasions for which transmission using one or more configured CSI-RS resources does not take place. It is possible that the UE may be configured with a plurality of different SBFD configuration (e.g., with different SBFD slot/symbol patterns/timings). In this case the base station can also indicate, for each CSI-RS resource for which transmission is restricted, that the restriction is for a specific SBFD configuration… the base station may also configure two different sets of CSI-RS resources-a first set of CSI-RS resources that will not be used for transmission during SBFD slots and a second set of CSI-RS resources that are only used for transmission during SBFD slots). Regarding Claims 23, 36, Deogun discloses: the instructions are further executable by the one or more processors to cause the UE to: receive at least one second control message indicating a reporting configuration for channel state information associated with the subband full duplex time interval and the non- subband full duplex time interval, wherein the channel state information indicated by the report comprises first channel state information associated with the subband full duplex time interval or second channel state information associated with the non-subband full duplex time interval based at least in part on the reporting configuration being for channel state information associated with the subband full duplex time interval and the non-subband full duplex time interval (see para 334, in FIG. 29 (at S2914b), the base station may configure (e.g., in the CSI report configuration) different (sets of) CSI reports to be provided based on different measurements of CSI-RS transmitted in the same legacy TDD slot. Specifically, one set of CSI-RS resources and associated CSI-RS reports may be configured for use in respect of non-SBFD (legacy TDD DL) slots, and another set of CSI-RS resources and associated CSI-RS reports may be configured for use in respect of SBFD slots). Regarding Claims 25, 28, 38, Deogun discloses: one or more uplink subbands that overlap in a subband full duplex symbol with the two or more downlink subbands in the time domain are located between respective downlink subbands of the two or more downlink subbands in the frequency domain (see para 72, In subband overlapping FD, UL and DL may be configured in a similar way to subband non-overlapping FD, but the different subbands are allowed to overlap in frequency). Regarding Claim 28, Deogun discloses a network entity (see FIG. 20, RAN node) for wireless communications, comprising: one or more processors; one or more memories coupled with the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the network entity to: transmit, to a user equipment (UE).at least one control message indicating a first measurement configuration for channel state information measurement via a subband full duplex time interval (see para 273, the base station configures/i.e., transmits, different CSI-RS settings for CSI-RS transmission during SBFD slots/symbols) and a second measurement configuration for channel state information measurement via a non-subband full duplex time interval (see FIG. 20, at step S2010 CSI-RS resource configuration (SFBD specific CSI-RS resource settings #1 (for full duplex (FD) slots); non-SFBD CSI-RS resource settings #2 (for TDD DL slots)), the subband full duplex time interval comprising two or more downlink subbands that are (see para 72, In subband overlapping FD, UL and DL may be configured in a similar way to subband non-overlapping FD, but the different subbands are allowed to overlap in frequency/i.e., representing an overlap in time-frequency domain); transmit, to the UE, one or more channel state information reference signals via the subband full duplex time interval or via the non-subband full duplex time interval (see para 274, at S2012 the UE performs CSI-RS measurement and reporting, the UE can perform the CSI-RS measurement and reporting based on one or more SBFD specific CSI-RS resource settings for SBFD slots/symbols and can perform the CSI-RS measurement and reporting based on one or more TDD specific CSI-RS resource settings for other (legacy) TDD slots/symbols/i.e., representing non-SBFD); and receive, from the UE in accordance with the first measurement configuration or the second measurement configuration, a report indicating channel state information that is based at least in part on the one or more channel state information reference signals (see FIG. 20, S2012 perform CSI-RS measurement for setting #1 or setting #2 and the UE performs CSI reporting). Deogun teaches receiving measurement configuration information for SBFD and non-SBFD for CSI reporting; SBFD downlink subbands that are contiguous and SBFD downlink subbands overlapping in frequency domain. Deogun does not specify two or more downlink subbands that are non-contiguous. In the same field of endeavor, Grant teaches this limitation: see paras 92-93, configuring reference signal (RS) resources with a non-contiguous frequency domain resource allocation in OFDM symbol(s) of a carrier configured for sub-band full duplex (SBFD) operation. It would have been obvious, to one having ordinary skill in the art, before the effective filing date of the claimed invention, to modify the system of Deogun to include SBFD downlink subbands that are non-contiguous, to provide flexibility in the configuration of reference signal resource allocations such as to, for example, match the subband configuration within a subband full duplex system (see Grant, para 93), and since NR is designed to support both contiguous and non-contiguous downlink (DL) subbands for SBFD. Regarding Claims 30 and 41, Deogun discloses: the instructions are further executable by the one or more processors to cause the network entity to: determine whether the report comprises the first channel state information or the second channel state information based at least in part on whether the one or more channel state information reference signals are transmitted via the subband full duplex time interval or the non-subband full duplex time interval (see FIG. 20, at step S2010 CSI-RS resource configuration (SFBD specific CSI-RS resource settings #1 (for FD slots); non-SFBD CSI-RS resource settings #1 (for TDD DL slots)), and at step S2012 perform CSI-RS measurement for setting #1 or setting #2 and the UE performs CSI reporting; also see FIG. 22. Para 283, at step S2214, the UE performs CSI-RS measurement and reporting, the UE can perform the CSI-RS measurement and reporting based on the set of parameters corresponding to the indicated parameter state, i.e., as illustrated in FIG. 22, step S2210 - state #1 for SBFD CSI report; and state #2 for non-SBFD CSI report)). Regarding Claim 31, Deogun discloses a method for wireless communication at a user equipment (UE), comprising: receiving, from a network entity, at least one control message indicating a first measurement configuration for channel state information measurement via a subband full duplex time interval (see para 273, the base station configures different CSI-RS settings for CSI-RS transmission during SBFD slots/symbols) and a second measurement configuration for channel state information measurement via a non-subband full duplex time interval (see FIG. 20, at step S2010 CSI-RS resource configuration (SFBD specific CSI-RS resource settings #1 (for full duplex (FD) slots); non-SFBD CSI-RS resource settings #2 (for TDD DL slots)),, the subband full duplex time interval comprising two or more downlink subbands that are (see para 72, In subband overlapping FD, UL and DL may be configured in a similar way to subband non-overlapping FD, but the different subbands are allowed to overlap in frequency/i.e., representing an overlap in time-frequency domain); receiving, from the network entity, one or more channel state information reference signals via the subband full duplex time interval in accordance with the first measurement configuration or via the non-subband full duplex time interval in accordance with the second measurement configuration (see para 274, at S2012 the UE performs CSI-RS measurement and reporting, the UE can perform the CSI-RS measurement and reporting based on one or more SBFD specific CSI-RS resource settings for SBFD slots/symbols and can perform the CSI-RS measurement and reporting based on one or more TDD specific CSI-RS resource settings for other (legacy) TDD slots/symbols/i.e., representing non-SBFD); and transmitting, to the network entity, a report indicating channel state information that is based at least in part on the one or more channel state information reference signals (see FIG. 20, S2012 perform CSI-RS measurement for setting #1 or setting #2 and the UE performs CSI reporting). Deogun teaches receiving measurement configuration information for SBFD and non-SBFD for CSI reporting; SBFD downlink subbands that are contiguous and SBFD downlink subbands overlapping in frequency domain. Deogun does not specify two or more downlink subbands that are non-contiguous. In the same field of endeavor, Grant teaches this limitation: see paras 92-93, configuring reference signal (RS) resources with a non-contiguous frequency domain resource allocation in OFDM symbol(s) of a carrier configured for sub-band full duplex (SBFD) operation. It would have been obvious, to one having ordinary skill in the art, before the effective filing date of the claimed invention, to modify the system of Deogun to include SBFD downlink subbands that are non-contiguous, to provide flexibility in the configuration of reference signal resource allocations such as to, for example, match the subband configuration within a subband full duplex system (see Grant, para 93), and since NR is designed to support both contiguous and non-contiguous downlink (DL) subbands for SBFD. Regarding Claim 39, Deogun discloses a method for wireless communication at a network entity, comprising: transmitting, to a user equipment (UE).at least one control message indicating a first measurement configuration for channel state information measurement via a subband full duplex time interval (see para 273, the base station configures/i.e., transmits, different CSI-RS settings for CSI-RS transmission during SBFD slots/symbols) and a second measurement configuration for channel state information measurement via a non-subband full duplex time interval (see FIG. 20, at step S2010 CSI-RS resource configuration (SFBD specific CSI-RS resource settings #1 (for full duplex (FD) slots); non-SFBD CSI-RS resource settings #2 (for TDD DL slots)), the subband full duplex time interval comprising two or more downlink subbands that are (see para 72, In subband overlapping FD, UL and DL may be configured in a similar way to subband non-overlapping FD, but the different subbands are allowed to overlap in frequency/i.e., representing an overlap in time-frequency domain); transmitting, to the UE, one or more channel state information reference signals via the subband full duplex time interval or via the non-subband full duplex time interval (see para 274, at S2012 the UE performs CSI-RS measurement and reporting, the UE can perform the CSI-RS measurement and reporting based on one or more SBFD specific CSI-RS resource settings for SBFD slots/symbols and can perform the CSI-RS measurement and reporting based on one or more TDD specific CSI-RS resource settings for other (legacy) TDD slots/symbols/i.e., representing non-SBFD); and receiving, from the UE in accordance with the first measurement configuration or the second measurement configuration, a report indicating channel state information that is based at least in part on the one or more channel state information reference signals (see FIG. 20, S2012 perform CSI-RS measurement for setting #1 or setting #2 and the UE performs CSI reporting). Deogun teaches receiving measurement configuration information for SBFD and non-SBFD for CSI reporting; SBFD downlink subbands that are contiguous and SBFD downlink subbands overlapping in frequency domain. Deogun does not specify two or more downlink subbands that are non-contiguous. In the same field of endeavor, Grant teaches this limitation: see paras 92-93, configuring reference signal (RS) resources with a non-contiguous frequency domain resource allocation in OFDM symbol(s) of a carrier configured for sub-band full duplex (SBFD) operation. It would have been obvious, to one having ordinary skill in the art, before the effective filing date of the claimed invention, to modify the system of Deogun to include SBFD downlink subbands that are non-contiguous, to provide flexibility in the configuration of reference signal resource allocations such as to, for example, match the subband configuration within a subband full duplex system (see Grant, para 93), and since NR is designed to support both contiguous and non-contiguous downlink (DL) subbands for SBFD. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DEEPA BELUR whose telephone number is (571)270-3722. The examiner can normally be reached M-F 8 am - 4:30 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, Kevin Bates can be reached at 571-272-3980. 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. /DEEPA BELUR/Primary Examiner, Art Unit 2472
Read full office action

Prosecution Timeline

May 09, 2023
Application Filed
Jan 14, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12604227
TECHNIQUES FOR OPPORTUNISTIC CONFIGURATION ADJUSTMENT
2y 5m to grant Granted Apr 14, 2026
Patent 12603687
FULL-DUPLEX BEAM SELECTION FOR SIDELINK COMMUNICATIONS
2y 5m to grant Granted Apr 14, 2026
Patent 12603745
TERMINAL, BASE STATION, AND RADIO COMMUNICATION METHOD
2y 5m to grant Granted Apr 14, 2026
Patent 12598493
MEASUREMENT GAP CONFIGURATION FOR A NON-TERRESTRIAL NETWORK CELL
2y 5m to grant Granted Apr 07, 2026
Patent 12592786
NETWORK NODE, USER EQUIPMENT AND METHODS IN A RADIO ACCESS NETWORK
2y 5m to grant Granted Mar 31, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
83%
Grant Probability
94%
With Interview (+11.2%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 582 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month