Prosecution Insights
Last updated: April 19, 2026
Application No. 18/685,258

CONFIGURING CSI-RS FOR CSI FEEDBACK ASSOCIATED WITH DL TRANSMISSION FROM MULTIPLE TRPs

Non-Final OA §102
Filed
Feb 21, 2024
Examiner
NGUYEN, ANH NGOC M
Art Unit
2473
Tech Center
2400 — Computer Networks
Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
99%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allow Rate
700 granted / 778 resolved
+32.0% vs TC avg
Moderate +9% lift
Without
With
+8.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
26 currently pending
Career history
804
Total Applications
across all art units

Statute-Specific Performance

§101
10.5%
-29.5% vs TC avg
§103
39.6%
-0.4% vs TC avg
§102
22.8%
-17.2% vs TC avg
§112
18.3%
-21.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 778 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 21 and 22 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Khan Beigi et al. (Pub. No.: US 2023/0403058; hereinafter Khan). Regarding claim 21, Khan discloses a method performed by a network node, the method comprising: sending, to a user equipment, UE, information that explicitly or implicitly indicates, for one or more CSI Reference Signal, CSI-RS, ports in one or more CSI-RS resources in a CSI-RS resource set (see para. 0080, 0097, The WTRU 302 may receive first configuration information for CSI reporting…The configuration information may include, for instance, one or more CSI-RS resource sets…and each CSI-RS resource set may include one or more CSI-RS resources,… A WTRU may be configured with one or more of the following in a CSI-RS Resource: a CSI-RS resource mapping to define the number of CSI-RS ports): (a) multiple Transmission Configuration Indication, TCI, states associated to each of the one or more CSI-RS resources (see para. 0080, each CSI-RS resource set may include one or more CSI-RS resources …para. 0097, A WTRU may be configured with one or more of the following in a CSI-RS Resource: …the reference to the TCI-State, para. 0087, one or more TCI states associated to the one or more CSI-RS resources), (b) a single TCI state for each of multiple CSI-RS resources in the CSI-RS resource set, wherein the multiple CSI-RS resources are fully overlapping in time and frequency and each of the multiple CSI-RS resources is associated to a different TCI state; or (c) a combination of (a) and (b). Regarding claim 22, Khan discloses a network node comprising processing circuitry (see Fig. 1A, base station 114a/11b includes at least a processor for processing) configured to cause the network node to: send, to a user equipment, UE, information that explicitly or implicitly indicates, for one or more CSI Reference Signal, CSI-RS, ports in one or more CSI-RS resources in a CSI-RS resource set (see para. 0080, 0097, The WTRU 302 may receive first configuration information for CSI reporting…The configuration information may include, for instance, one or more CSI-RS resource sets…and each CSI-RS resource set may include one or more CSI-RS resources,… A WTRU may be configured with one or more of the following in a CSI-RS Resource: a CSI-RS resource mapping to define the number of CSI-RS ports): (a) multiple Transmission Configuration Indication, TCI, states associated to each of the one or more CSI-RS resources (see para. 0080, each CSI-RS resource set may include one or more CSI-RS resources …para. 0097, A WTRU may be configured with one or more of the following in a CSI-RS Resource: …the reference to the TCI-State, para. 0087, one or more TCI states associated to the one or more CSI-RS resources), (b) a single TCI state for each of multiple CSI-RS resources in the CSI-RS resource set, wherein the multiple CSI-RS resources are fully overlapping in time and frequency and each of the multiple CSI-RS resources is associated to a different TCI state; or (c) a combination of (a) and (b). Allowable Subject Matter The International Search Report and Written Opinion for International Patent Application No. PCT/IB2022/057898 has been considered and it does not disclose the claimed features as recited below. The cited prior arts, taken alone or in combination, do not disclose the claimed features of “based on the information received from the network node, performing channel measurement based on the one or more CSI-RS ports by: (i) measuring each CSI-RS port that is in a CSI-RS resource that is associated to multiple TCI states using the multiple TCI states associated to the CSI-RS resource; and/or (ii) measuring each CSI-RS port that is in the multiple CSI-RS resources each associated to a different TCI state over the multiple CSI-RS resources using the respective TCI states associated to the multiple CSI-RS resources; determining a channel rank based on the channel measurement; computing a channel quality based on the determined rank and the channel measurement; and sending, to the network node, feedback comprising information that indicates the rank and the channel quality” as recited in claims 1 and 19 when considering each claim individually as a whole. Claims 1 – 17 and 19 are allowed. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to Anh Ngoc M Nguyen whose telephone number is (571) 270-5139. The examiner can normally be reached on Monday to Friday, from 7:30 am to 4:00 pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Kwang Bin Yao can be reached on ((571) 272-3182. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. 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 . 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. /ANH NGOC M NGUYEN/Primary Examiner, Art Unit 2473
Read full office action

Prosecution Timeline

Feb 21, 2024
Application Filed
Mar 17, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12598017
DYNAMIC PACKET DELAY BUDGET PROCESSING IN QUALITY OF SERVICE
2y 5m to grant Granted Apr 07, 2026
Patent 12587404
FLOOD OPTIMIZATION TO DISTRIBUTE MULTIHOME SOURCE INFORMATION IN NETWORK
2y 5m to grant Granted Mar 24, 2026
Patent 12574077
CONFIGURING CHANNEL STATE INFORMATION (CSI) FEEDBACK
2y 5m to grant Granted Mar 10, 2026
Patent 12568542
DESIGN CONSIDERATIONS FOR MULTI-LINK AGGREGATION
2y 5m to grant Granted Mar 03, 2026
Patent 12562969
COMBINING SCHEMES FOR SHARED OPEN RADIO ACCESS NETWORKS
2y 5m to grant Granted Feb 24, 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
90%
Grant Probability
99%
With Interview (+8.6%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 778 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