Prosecution Insights
Last updated: April 25, 2026
Application No. 18/264,743

SIGNALING OF SOUNDING REFERENCE SIGNAL GROUPING

Non-Final OA §102
Filed
Aug 08, 2023
Priority
Apr 07, 2021 — nonprovisional of PCTCN2021085778
Examiner
SAM, PHIRIN
Art Unit
2476
Tech Center
2400 — Computer Networks
Assignee
Qualcomm Incorporated
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
2m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allowance Rate
901 granted / 1001 resolved
+32.0% vs TC avg
Moderate +6% lift
Without
With
+6.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
31 currently pending
Career history
1032
Total Applications
across all art units

Statute-Specific Performance

§101
7.1%
-32.9% vs TC avg
§103
53.1%
+13.1% vs TC avg
§102
24.0%
-16.0% vs TC avg
§112
3.8%
-36.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1001 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 . 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. Claims 1, 2, 15, 16, and 17 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by US Pub. 2021/0281448 to Li et al. (hereinafter Li). In regard claim 1, Li teaches or discloses a method for wireless communication at a user equipment (UE) (see Fig. 2), comprising: identifying one or more antenna groups at the UE, each of the one or more antenna groups comprising two or more antenna ports and associated with group-based sounding reference signal transmission (see paragraphs [0007], [0026], and [0041], the UE may identify co-phase adjustments for the one or more SRS resources, and may transmit the one or more SRSs according to the identified co-phase adjustments (e.g., where the co-phase may be adjusted from one SRS to the next). The UE may identify precoder adjustments for the one or more SRS resources, and may transmit the one or more SRSs according to the identified precoder adjustments (e.g., where the precoder may be adjusted from one SRS to the next). Selecting a group of UE antenna ports based on the one or more received SRSs. The UE with an indication as to the number of spatial layers to transmit, as well as a precoding to apply (e.g., an antenna port configuration selection, or antenna port precoder weighting), based on observed channel conditions (e.g., such as channel state information (CSI))); receiving an indication of a sounding reference signal configuration identifying one or more resources for performing group-based sounding reference signal transmissions using at least one of the one or more antenna groups (see paragraphs [0009], [0010], [0011], [0012], and [0026], receiving, from a base station, an SRS resource indication (SRI) indicating a selected SRS resource of the one or more SRS resources based at least in part on the one or more transmitted SRSs. Means for receiving, from the base station, an SRS resource indication (SRI) indicating a selected SRS resource of the one or more SRS resources based at least in part on the one or more transmitted SRSs. Selecting a group of UE antenna ports based on the one or more received SRSs). transmitting one or more sounding reference signals using the one or more resources and at least one antenna port from the at least one of the one or more antenna groups (see paragraphs [0006], and [0042], a user equipment (UE) may transmit a UE capability report to a base station indicating a number of SRS resources. The UE is capable of transmitting over, a number of antenna ports the UE is capable of using for each SRS resource (e.g., for each SRS transmission), coherency capabilities between different antenna ports, etc. The UE may transmit a single SRS resource and a base station may select a transmitted precoding matrix indicator (TPMI) which may specify the number of spatial layers and the precoding information (e.g., a set of precoding weights at the UE). The base station may configure a UE to transmit over multiple SRS resources, and the UE may transmit SRS with varied antenna port configurations using different numbers of transmission layers). In regard claims 2 and 17, Li teaches or discloses the method of claim 1, further comprising: identifying, based at least in part on the sounding reference signal configuration, a plurality of resource sets (see paragraphs [0007], [0042], and [0044], the UE may identify co-phase adjustments for the one or more SRS resources. A base station may configure a UE to transmit over multiple SRS resources, and the UE may transmit SRS with varied antenna port configurations using different numbers of transmission layers. The UE may transmit an indication of the UE capability (e.g., a number of SRS resources that may be configured by the network, a number of antenna ports supported for each SRS resource), selecting one of the plurality of resource sets for transmission of the one or more sounding reference signals, the one of the plurality of resource sets comprising the one or more resources (see paragraphs [0009], [0010], [0085], and [0092], receiving, from a base station, an SRS resource indication (SRI) indicating a selected SRS resource of the one or more SRS resources based at least in part on the one or more transmitted SRSs. The apparatus to receive, from a base station, an SRS resource indication (SRI) indicating a selected SRS resource of the one or more SRS resources based at least in part on the one or more transmitted SRSs). In regard claim 15, Li teaches or discloses the method of claim 1, further comprising: transmitting a UE capability message identifying the one or more antenna groups at the UE (see paragraphs [0006], [0019], and [0044], a user equipment (UE) may transmit a UE capability report to a base station indicating a number of SRS resources the UE is capable of transmitting over, a number of antenna ports the UE is capable of using for each SRS resource (e.g., for each SRS transmission), coherency capabilities between different antenna ports, etc.), wherein the indication of the sounding reference signal configuration identifying the one or more resources is received based at least in part on the UE capability message (see paragraph [0044], a UE may transmit an indication of the UE capability (e.g., a number of SRS resources that may be configured by the network, a number of antenna ports supported for each SRS resource, a coherency capability between different antenna ports, etc.) to a base station). In regard claim 16, Li teaches or discloses a method for wireless communication at a base station, comprising: identifying one or more antenna groups at a user equipment (UE), each of the one or more antenna groups comprising two or more antenna ports and associated with group-based sounding reference signal transmission (see paragraphs [0007], [0026], and [0041], the UE may identify co-phase adjustments for the one or more SRS resources, and may transmit the one or more SRSs according to the identified co-phase adjustments (e.g., where the co-phase may be adjusted from one SRS to the next). The UE may identify precoder adjustments for the one or more SRS resources, and may transmit the one or more SRSs according to the identified precoder adjustments (e.g., where the precoder may be adjusted from one SRS to the next). Selecting a group of UE antenna ports based on the one or more received SRSs. The UE with an indication as to the number of spatial layers to transmit, as well as a precoding to apply (e.g., an antenna port configuration selection, or antenna port precoder weighting), based on observed channel conditions (e.g., such as channel state information (CSI))); transmitting an indication of a sounding reference signal configuration identifying one or more resources for performing group-based sounding reference signal transmissions from the UE using at least one of the one or more antenna groups (see paragraphs [0006], [0007], and [0011], the UE may then transmit SRSs according to the SRS configuration. The UE may transmit three SRSs, one over each SRS resource, and each SRS may be transmitted using an antenna port configuration indicated by the SRS resource configuration); and receiving one or more sounding reference signals using the one or more resources and at least one antenna port from the at least one of the one or more antenna groups (see abstract, paragraph [0009], [0010], [0011], [0014], [0026], and [0109], receiving, from a base station, an SRS resource configuration for one or more SRS resources. Receiving an SRI indicating a selected SRS resource of the one or more SRS resources based on the one or more transmitted SRSs. Selecting a group of UE antenna ports based on the one or more received SRSs. The communications manager 415 may receive, from a base station, an SRS resource configuration for one or more SRS resources). In regard claim 29, Li teaches or discloses an apparatus for wireless communication at a user equipment (UE), comprising: a processor (see Fig. 5); memory coupled with the processor (see Fig. 5); and instructions stored in the memory and executable by the processor to cause the apparatus to (see Fig. 5): identify one or more antenna groups at the UE, each of the one or more antenna groups comprising two or more antenna ports and associated with group-based sounding reference signal transmission (see paragraphs [0007], [0026], and [0041], the UE may identify co-phase adjustments for the one or more SRS resources, and may transmit the one or more SRSs according to the identified co-phase adjustments (e.g., where the co-phase may be adjusted from one SRS to the next). The UE may identify precoder adjustments for the one or more SRS resources, and may transmit the one or more SRSs according to the identified precoder adjustments (e.g., where the precoder may be adjusted from one SRS to the next). Selecting a group of UE antenna ports based on the one or more received SRSs. The UE with an indication as to the number of spatial layers to transmit, as well as a precoding to apply (e.g., an antenna port configuration selection, or antenna port precoder weighting), based on observed channel conditions (e.g., such as channel state information (CSI))); receive an indication of a sounding reference signal configuration identifying one or more resources for performing group-based sounding reference signal transmissions using at least one of the one or more antenna groups (see paragraphs [0009], [0010], [0011], and [0012], receiving, from a base station, an SRS resource indication (SRI) indicating a selected SRS resource of the one or more SRS resources based at least in part on the one or more transmitted SRSs. Means for receiving, from the base station, an SRS resource indication (SRI) indicating a selected SRS resource of the one or more SRS resources based at least in part on the one or more transmitted SRSs); and transmit one or more sounding reference signals using the one or more resources and at least one antenna port from the at least one of the one or more antenna groups (see paragraphs [0006], and [0042], a user equipment (UE) may transmit a UE capability report to a base station indicating a number of SRS resources the UE is capable of transmitting over, a number of antenna ports the UE is capable of using for each SRS resource (e.g., for each SRS transmission), coherency capabilities between different antenna ports, etc. The UE may transmit a single SRS resource and a base station may select a transmitted precoding matrix indicator (TPMI) which may specify the number of spatial layers and the precoding information (e.g., a set of precoding weights at the UE). The base station may configure a UE to transmit over multiple SRS resources, and the UE may transmit SRS with varied antenna port configurations using different numbers of transmission layers). In regard claim 30, Li teaches or discloses an apparatus for wireless communication at a base station (see Fig. 11), comprising: a processor (see Fig. 11); memory coupled with the processor (see Fig. 11); and instructions stored in the memory and executable by the processor to cause the apparatus to (see Fig. 11): identify one or more antenna groups at a user equipment (UE), each of the one or more antenna groups comprising two or more antenna ports and associated with group-based sounding reference signal transmission (see paragraphs [0007], [0026], and [0041], the UE may identify co-phase adjustments for the one or more SRS resources, and may transmit the one or more SRSs according to the identified co-phase adjustments (e.g., where the co-phase may be adjusted from one SRS to the next). The UE may identify precoder adjustments for the one or more SRS resources, and may transmit the one or more SRSs according to the identified precoder adjustments (e.g., where the precoder may be adjusted from one SRS to the next). Selecting a group of UE antenna ports based on the one or more received SRSs. The UE with an indication as to the number of spatial layers to transmit, as well as a precoding to apply (e.g., an antenna port configuration selection, or antenna port precoder weighting), based on observed channel conditions (e.g., such as channel state information (CSI))); transmit an indication of a sounding reference signal configuration identifying one or more resources for performing group-based sounding reference signal transmissions from the UE using at least one of the one or more antenna groups (see paragraphs [0006], [0007], and [0011], the UE may then transmit SRSs according to the SRS configuration. The UE may transmit three SRSs, one over each SRS resource, and each SRS may be transmitted using an antenna port configuration indicated by the SRS resource configuration); and receive one or more sounding reference signals using the one or more resources and at least one antenna port from the at least one of the one or more antenna groups (see abstract, paragraph [0009], [0010], [0011], [0014], [0026], and [0109], receiving, from a base station, an SRS resource configuration for one or more SRS resources. Receiving an SRI indicating a selected SRS resource of the one or more SRS resources based on the one or more transmitted SRSs. Selecting a group of UE antenna ports based on the one or more received SRSs. The communications manager 415 may receive, from a base station, an SRS resource configuration for one or more SRS resources). Allowable Subject Matter Claims 3-14 and 18-28 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to PHIRIN SAM whose telephone number is (571)272-3082. The examiner can normally be reached Mon - Fri, 10:30am - 5pm. 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 R. 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. Date: 04/09/2026 /PHIRIN SAM/Primary Examiner, Art Unit 2476
Read full office action

Prosecution Timeline

Aug 08, 2023
Application Filed
Apr 09, 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
90%
Grant Probability
96%
With Interview (+6.3%)
2y 11m (~2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1001 resolved cases by this examiner. Grant probability derived from career allowance rate.

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