Prosecution Insights
Last updated: July 17, 2026
Application No. 18/728,394

TRANSMISSION SPATIAL INFORMATION FOR CHANNEL ESTIMATION

Non-Final OA §102
Filed
Jul 11, 2024
Priority
Apr 02, 2022 — nonprovisional of PCTCN2022085026
Examiner
PATEL, CHANDRAHAS B
Art Unit
Tech Center
Assignee
Qualcomm Incorporated
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
6m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allowance Rate
796 granted / 901 resolved
+28.3% vs TC avg
Moderate +7% lift
Without
With
+7.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
13 currently pending
Career history
924
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
61.6%
+21.6% vs TC avg
§102
31.1%
-8.9% vs TC avg
§112
1.4%
-38.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 901 resolved cases

Office Action

§102
DETAILED ACTION Specification The lengthy specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any errors of which applicant may become aware in the specification. Claim Rejections - 35 USC § 102 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 1-10, 17-23 and 28-30 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Hajri et al. (USPN 12,489,505). Regarding claim 1, Hajri teaches an apparatus for wireless communication, comprising: a memory [Fig. 7, 54]; and a processor coupled to the memory, the processor configured to: receive an indication of transmission spatial information associated with a network entity [Col. 7, lines 13-44, receives information about spatial beams to be used for transmission]; receive a reference signal from the network entity based on the transmission spatial information [Col. 10, line 35 – Col. 11, line 7, receives a reference signal after transmission of spatial information]; and transmit, to the network entity, channel state information (CSI) based on the received reference signal and the transmission spatial information [Col. 12, lines 16-37, CSI transmission is done based on reference signals and spatial information]. Regarding claims 2 and 18, Hajri teaches a transceiver configured to receive/output the indication of the transmission spatial information, receive/output the reference signal, and transmit/obtain the CSI, wherein the transmission spatial information indicates a mapping of one or more transceiver units (TxRUs) to one or more antenna elements of an antenna architecture associated with the network entity/apparatus [Col. 6, line 63 – Col. 7, line 13]. Regarding claims 3 and 19, Hajri teaches to receive/output the indication of the transmission spatial information, the processor is further configured to receive/output a cover-code configuration that identifies the transmission spatial information [Col. 7, lines 13-44]; and to receive/output the reference signal, the processor is further configured to receive/output the reference signal based on the cover-code configuration [Col. 10, line 35 – Col. 11, line 7]. Regarding claims 4 and 20, Hajri teaches the cover-code configuration identifies a cover-code of the transmission spatial information [Col. 7, lines 13-44]. Regarding claim 5, Hajri teaches at least one of: determine a channel estimation based on the received reference signal and the cover-code [Col. 7, lines 13-44]; or determine the CSI based at least in part on the cover-code [Col. 12, lines 16-37]. Regarding claims 6 and 21, Hajri teaches the transmission spatial information identifies a cover-code that corresponds to channel state information reference signal (CSI-RS) ports arranged in groups [Col. 7, lines 13-44]. Regarding claims 7 and 22, Hajri teaches receiving/outputting a signal indicating a machine learning module associated with the transmission spatial information [Col. 4, line 46 – Col. 5, line 17]. Regarding claims 8 and 23, Hajri teaches the machine learning module is indicated via a cover-code configuration [Col. 4, line 46 – Col. 5, line 17]. Regarding claim 9, Hajri teaches at least one of: determine a channel estimation based on the received reference signal using the machine learning module and the transmission spatial information [Col. 7, lines 13-44]; or determine the CSI using the transmission spatial information and the machine learning module [Col. 12, lines 16-37]. Regarding claim 10, Hajri teaches determining a frequency domain channel estimate for each of a plurality of ports associated with an antenna architecture using the machine learning module, wherein input of the machine learning module includes the received reference signal [Col. 7, lines 13-44]. Regarding claim 17, Hajri teaches an apparatus for wireless communication, comprising: a memory [Fig. 6, 14]; and a processor configured to: output an indication of transmission spatial information associated with the apparatus [Col. 7, lines 13-44], output a reference signal based on the transmission spatial information [Col. 10, line 35 – Col. 11, line 7], and obtain channel state information (CSI) based on the reference signal and the transmission spatial information [Col. 12, lines 16-37]. Regarding claim 28, Hajri teaches a method of wireless communication by a user equipment, comprising: receiving an indication of transmission spatial information associated with a network entity [Col. 7, lines 13-44, receives information about spatial beams to be used for transmission]; receiving a reference signal from the network entity based on the transmission spatial information [Col. 10, line 35 – Col. 11, line 7, receives a reference signal after transmission of spatial information]; and transmitting, to the network entity, channel state information (CSI) based on the received reference signal and the transmission spatial information [Col. 12, lines 16-37, CSI transmission is done based on reference signals and spatial information]. Regarding claim 29, Hajri teaches the transmission spatial information indicates a mapping of one or more transceiver units (TxRUs) to one or more antenna elements of an antenna architecture associated with the network entity [Col. 6, line 63 – Col. 7, line 13]. Regarding claim 30, Hajri taches a method of wireless communication by a network entity, comprising: outputting an indication of transmission spatial information associated with the network entity [Col. 7, lines 13-44], outputting a reference signal based on the transmission spatial information [Col. 10, line 35 – Col. 11, line 7], and obtaining channel state information (CSI) based on the reference signal and the transmission spatial information [Col. 12, lines 16-37]. Allowable Subject Matter Claims 11-16 and 24-27 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 The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Liu (US-PGPUB 2021/0273758) teaches receiving a channel state information reference signal (CSI-RS) from a transmitting device. A joint correlation metric is identified for a channel associated with the CSI-RS and the joint correlation metric is based at least in part on a frequency correlation and a spatial correlation of the channel. Kim et al. (USPN 10,313,852) teaches receiving channel space information about a terminal within a group. Distributed antenna unit (DU) selection information is determined based on the channel space information about the terminal. The determined DU selection information is transmitted to the terminal. A DU selection adjusting process is performed based on the channel space information. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHANDRAHAS PATEL whose telephone number is (571)270-1211. The examiner can normally be reached Monday - Thursday 7:30 - 17:30. 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, Ricky Ngo can be reached at 571-272-3139. 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. /Chandrahas B Patel/ Primary Examiner, Art Unit 2464
Read full office action

Prosecution Timeline

Jul 11, 2024
Application Filed
Jul 02, 2026
Non-Final Rejection mailed — §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
88%
Grant Probability
96%
With Interview (+7.2%)
2y 7m (~6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 901 resolved cases by this examiner. Grant probability derived from career allowance rate.

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