Prosecution Insights
Last updated: October 16, 2026
Application No. 18/642,072

DOWNLINK CONTROL CHANNEL IN WIRELESS SYSTEMS

Non-Final OA §102
Filed
Apr 22, 2024
Priority
Aug 25, 2015 — provisional 62/209,797 +3 more
Examiner
PHAM, BRENDA H
Art Unit
2412
Tech Center
2400 — Computer Networks
Assignee
InterDigital Inc.
OA Round
1 (Non-Final)
91%
Grant Probability
Favorable
1-2
OA Rounds
1m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 91% — above average
91%
Career Allowance Rate
1080 granted / 1190 resolved
+32.8% vs TC avg
Minimal +2% lift
Without
With
+2.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
24 currently pending
Career history
1220
Total Applications
across all art units

Statute-Specific Performance

§101
10.7%
-29.3% vs TC avg
§103
32.6%
-7.4% vs TC avg
§102
28.8%
-11.2% vs TC avg
§112
15.2%
-24.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1190 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 . Information Disclosure Statement (IDS) The information disclosure statement (IDS) submitted on 20 May 2024, 29 April 2026 and 23 July 2026 is being considered by the examiner. Claims 30-49 are pending. Claims 33, 35-38 and 45-48 are withdrawn from consideration. 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 30 and 40 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by (WO 2013/041020 A1). Regarding claims 30 and 40, Eriksson et al. discloses a wireless transmit/receive unit (WTRU) comprising: a processor configured to: receive configuration information via first downlink control information (DCI), (paragraph 29-34, “The physical downlink control channel carries scheduling assignments and other control information. A physical control channel is transmitted on an aggregation of one or several consecutive control channel elements (CCEs), where a control channel element corresponds to 9 resource element groups.”) wherein the configuration information indicates one or more search spaces to monitor, and wherein the one or more search spaces comprise one or more control channel (CC) candidates ([0008]: “the common search space includes two downlink control information (DCI) formats without carrier indicators,); monitor the one or more search spaces based on the configuration information received in the first DCI ([0032]: “The UE may monitor a set of PDCCH candidates for control information in every non-DRX (discontinuous received) subframe, where monitoring implies attempting to decode each of the PDCCHs in the set according to all the monitored downlink control information (DCI) formats. The set of PDCCH candidates to monitor are defined in terms of search spaces”; and receive a second DCI via the one or more search spaces that were monitored based on the configuration information received in the first DCI ([0033]: “The UE may monitor one common search space at each of the aggregation levels 4 and 8 and one UE-specific search space at each of the aggregation level 1, 2, 4, 8...The DCI formats that the UE may monitor depend on the configured transmission mode.”) Claims 30-32, 34, 40-42 and 44 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by (WO 2011/074914). Regarding claims 30 and 40, Eriksson et al. discloses a wireless transmit/receive unit (WTRU) comprising: a processor configured to: receive configuration information via first downlink control information (DCI), wherein the configuration information indicates one or more search spaces to monitor, and wherein the one or more search spaces comprise one or more control channel (CC) candidates (page 2: “receiving a control channel at a user equipment in a wireless communication system using multiple carriers is provided, in which the method comprises: receiving a plurality of search spaces, wherein each search space comprises a plurality of control channel candidates and each search space is corresponding to respective carrier”), monitor the one or more search spaces based on the configuration information received in the first DCI (“Monitoring control channel candidates in search spaces to find a control channel designated to the user equipment” see figure 10); and receive a second DCI via the one or more search spaces that were monitored based on the configuration information received in the first DCI (figure 11 shows a second DCI (DCI format 1), DCI format 2A,1A and DCI format 2, 1A). PNG media_image1.png 775 462 media_image1.png Greyscale PNG media_image2.png 656 958 media_image2.png Greyscale Regarding claims 31 and 41, (WO 2011/074914) teaches wherein the first DCI comprises a bit field, and wherein the bit field indicates the one or more search spaces to monitor (the control channel candidates having the common information size are discriminated using CIF (Carrier Indicator Field) values.”) Regarding claims 32 and 42, (WO 2011/074914) teaches wherein the processor is configured to determine the one or more CC candidates based Figure 11 shows determine the one or more CC candidates based on one or more search.) Regarding claims 34 and 44, (WO 2011/074914) teaches wherein the one or more search spaces is a subset of a plurality of search spaces. (Figure 11A shows, for example, search space for DL CC1 is a subset of plurality of search spaces (Search space for DL CC#1, Search space for DL CC#2 and Search space for DL CC#3). PNG media_image3.png 646 930 media_image3.png Greyscale Allowable Subject Matter Claims 39 and 49 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 BRENDA H PHAM whose telephone number is (571)272-3135. The examiner can normally be reached 571-272-3135. 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, Charles Jiang can be reached at 571-270-7191. 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. BRENDA H. PHAM Primary Examiner Art Unit 2412 /BRENDA H PHAM/Primary Examiner, Art Unit 2412
Read full office action

Prosecution Timeline

Apr 22, 2024
Application Filed
Oct 05, 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
91%
Grant Probability
93%
With Interview (+2.0%)
2y 7m (~1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1190 resolved cases by this examiner. Grant probability derived from career allowance rate.

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