Prosecution Insights
Last updated: May 29, 2026
Application No. 18/284,434

RADIO BASE STATION AND TERMINAL

Non-Final OA §103
Filed
Sep 27, 2023
Priority
Mar 31, 2021 — nonprovisional of PCTJP2021014058
Examiner
RICHMOND, GARTH DANIEL
Art Unit
2644
Tech Center
2600 — Communications
Assignee
NTT Docomo Inc.
OA Round
3 (Non-Final)
71%
Grant Probability
Favorable
3-4
OA Rounds
4m
Est. Remaining
91%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
12 granted / 17 resolved
+8.6% vs TC avg
Strong +21% interview lift
Without
With
+20.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
22 currently pending
Career history
56
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
90.1%
+50.1% vs TC avg
§102
6.6%
-33.4% vs TC avg
§112
1.3%
-38.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 17 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 . Response to Amendment Applicant’s submission dated 15 Dec. 2025—in which claim 2 is canceled, claims 1, 5, and 6 are amended, and new claims 7 and 8 are added—has been entered into the record and is considered herein. Claims 1 and 5-8 remain pending. Response to Arguments Applicant’s arguments—set forth at pp. 5-7 in the Remarks with respect to independent claims 1, 5, and 6—have been considered but are moot because the new grounds of rejection relies on one or more reference not applied in the prior rejection of record for some teaching or matter specifically challenged in the argument. Applicant's amendment necessitated the new grounds of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. § 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 1 and 5-8 are rejected under 35 U.S.C. § 103 as being unpatentable over US 2018/0376457 (hereinafter, “TSENG”) in view of US 2020/0077312 (hereinafter, “TSUBOI”). Regarding claim 1, TSUBOI discloses: A radio base station (base station apparatus 3) that configures a terminal (terminal apparatus 2) with a master cell group including a primary cell and a secondary cell and with a secondary cell group including a primary secondary cell and a secondary cell, comprising: (¶ 0047: [M]ultiple serving cells are configured for the terminal apparatus 2, multiple configured serving cells may include one primary cell and one or more secondary cells. The primary cell may be a serving cell in which an initial connection establishment procedure has been performed, a serving cell in which a connection re-establishment procedure has been initiated, or a cell indicated as the primary cell by a handover procedure. One or more secondary cells may be configured at a point of time at which a Radio Resource Control (RRC) connection is established or after the RRC connection is established. A cell group (also referred to as a master cell group (MCG)) including one or more serving cells including a primary cell (PCell), and one or more cell groups (also referred to as secondary cell groups (SCGs)) including one or more serving cells not including a primary cell and including a primary secondary cell (PSCell) in which at least a random access procedure can be performed and which does not become a deactivated state may be configured for the terminal apparatus 2. The master cell group includes one primary cell and zero or more secondary cells. The secondary cell group includes one primary secondary cell and zero or more secondary cells) a processor (higher layer processing unit 34) that configures different values for a secondary cell identifier assigned to the secondary cell in the secondary cell group, and (¶ 0243: The SN selects the SCellIndex that does not overlap SCellIndex already assigned to the SCG SCell from the list of values or the range of a value, and assigns the selected SCellIndex to the added cell (step S806)) . . . ; and a transmitter (radio transmission and/or reception unit 30) that transmits the secondary cell identifier and the serving cell identifier to the terminal. (¶ 0243: The SN transmits an RRC connection reconfiguration message including the SCell configuration information (such as an SCG RRC connection reconfiguration message) to the terminal apparatus 2 (step S808)) TSUBOI does not explicitly disclose: configur[ing] different values for . . . a serving cell identifier assigned to the primary secondary cell in the secondary cell group; and In the same field of endeavor, however, TSENG teaches: configuring different values for . . . a serving cell identifier assigned to the primary secondary cell in the secondary cell group; and (¶ 0010: [T]he Serving Cell index value=0 is mapped to a special cell of a cell group corresponding to the at least one logical channel, the special cell is . . . a primary secondary cell (PSCell) in a secondary cell group (SCG); ¶ 0086: [T]o a logical channel of SCG, the ServCellIndex=0 may be applied to indicate the PSCell in the SCG [TSENG’s mapping of an index value=0 to a “special cell” implies that index values mapped to non-PSCells in the SCG are something other than zero.]) It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify TSUBOI’s primary secondary cell (PSCell) addition and SCell addition procedures to provide a defined index value (i.e., 0) as taught by TSENG to map to a “special cell” (i.e., a PSCell in a secondary cell group (SCG) such that in a multiple cell group environment, a base station and a terminal can communicate efficiently. See TSENG, at ¶¶ 0010, 0015. Thus, the Examiner finds that considering the inferences and creative steps—or even routine steps—that one of ordinary skill in the art would have employed at the date of filing of the application, it would have been obvious to combine the teachings of TSUBOI and TSENG to render obvious the claimed feature of configur[ing] different values for a secondary cell identifier assigned to the secondary cell in the secondary cell group, and a serving cell identifier assigned to the primary secondary cell in the secondary cell group. See MPEP § 2143. Regarding claim 5, TSUBOI discloses: A radio communication method performed by a radio base station (base station apparatus 3) that configures a terminal (terminal apparatus 2) with a master cell group including a primary cell and a secondary cell and with a secondary cell group including a primary secondary cell and a secondary cell, comprising: (¶ 0047: [M]ultiple serving cells are configured for the terminal apparatus 2, multiple configured serving cells may include one primary cell and one or more secondary cells. The primary cell may be a serving cell in which an initial connection establishment procedure has been performed, a serving cell in which a connection re-establishment procedure has been initiated, or a cell indicated as the primary cell by a handover procedure. One or more secondary cells may be configured at a point of time at which a Radio Resource Control (RRC) connection is established or after the RRC connection is established. A cell group (also referred to as a master cell group (MCG)) including one or more serving cells including a primary cell (PCell), and one or more cell groups (also referred to as secondary cell groups (SCGs)) including one or more serving cells not including a primary cell and including a primary secondary cell (PSCell) in which at least a random access procedure can be performed and which does not become a deactivated state may be configured for the terminal apparatus 2. The master cell group includes one primary cell and zero or more secondary cells. The secondary cell group includes one primary secondary cell and zero or more secondary cells) configuring different values for a secondary cell identifier assigned to the secondary cell in the secondary cell group, and (¶ 0243: The SN selects the SCellIndex that does not overlap SCellIndex already assigned to the SCG SCell from the list of values or the range of a value, and assigns the selected SCellIndex to the added cell (step S806)) . . . ; and transmitting the secondary cell identifier and the serving cell identifier to the terminal. (¶ 0243: The SN transmits an RRC connection reconfiguration message including the SCell configuration information (such as an SCG RRC connection reconfiguration message) to the terminal apparatus 2 (step S808)) TSUBOI does not explicitly disclose: configuring different values for . . . a serving cell identifier assigned to the primary secondary cell in the secondary cell group; and In the same field of endeavor, however, TSENG teaches: configuring different values for . . . a serving cell identifier assigned to the primary secondary cell in the secondary cell group; and (¶ 0010: [T]he Serving Cell index value=0 is mapped to a special cell of a cell group corresponding to the at least one logical channel, the special cell is . . . a primary secondary cell (PSCell) in a secondary cell group (SCG); ¶ 0086: [T]o a logical channel of SCG, the ServCellIndex=0 may be applied to indicate the PSCell in the SCG [TSENG’s mapping of an index value=0 to a “special cell” implies that index values mapped to non-PSCells in the SCG are something other than zero.]) It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify TSUBOI’s primary secondary cell (PSCell) addition and SCell addition procedures to provide a defined index value (i.e., 0) as taught by TSENG to map to a “special cell” (i.e., a PSCell in a secondary cell group (SCG) such that in a multiple cell group environment, a base station and a terminal can communicate efficiently. See TSENG, at ¶¶ 0010, 0015. Thus, the Examiner finds that considering the inferences and creative steps—or even routine steps—that one of ordinary skill in the art would have employed at the date of filing of the application, it would have been obvious to combine the teachings of TSUBOI and TSENG to render obvious the claimed feature of configuring different values for a secondary cell identifier assigned to the secondary cell in the secondary cell group, and, and a serving cell identifier assigned to the primary secondary cell in the secondary cell group. See MPEP § 2143. Regarding claim 6, TSUBOI discloses: A radio communication system comprising: a radio base station (base station apparatus 3) that configures a terminal (terminal apparatus 2) with a master cell group including a primary cell and a secondary cell and with a secondary cell group including a primary secondary cell and a secondary cell; and (¶ 0047: [M]ultiple serving cells are configured for the terminal apparatus 2, multiple configured serving cells may include one primary cell and one or more secondary cells. The primary cell may be a serving cell in which an initial connection establishment procedure has been performed, a serving cell in which a connection re-establishment procedure has been initiated, or a cell indicated as the primary cell by a handover procedure. One or more secondary cells may be configured at a point of time at which a Radio Resource Control (RRC) connection is established or after the RRC connection is established. A cell group (also referred to as a master cell group (MCG)) including one or more serving cells including a primary cell (PCell), and one or more cell groups (also referred to as secondary cell groups (SCGs)) including one or more serving cells not including a primary cell and including a primary secondary cell (PSCell) in which at least a random access procedure can be performed and which does not become a deactivated state may be configured for the terminal apparatus 2. The master cell group includes one primary cell and zero or more secondary cells. The secondary cell group includes one primary secondary cell and zero or more secondary cells) the terminal, wherein the radio base station includes: a processor (higher layer processing unit 34) that configures different values for a secondary cell identifier assigned to the secondary cell in the secondary cell group, and . . . ; and a transmitter (radio transmission and/or reception unit 30) that transmits the secondary cell identifier and the serving cell identifier to the terminal, and (¶ 0243: The SN transmits an RRC connection reconfiguration message including the SCell configuration information (such as an SCG RRC connection reconfiguration message) to the terminal apparatus 2 (step S808)) the terminal includes: a receiver (radio transmission and/or reception unit 20) that receives the secondary cell identifier and the serving cell identifier from the radio base station. (¶ 0243: [T]erminal apparatus 2 configured with the SCell transmits an RRC connection reconfiguration complete message) TSUBOI does not explicitly disclose: configur[ing] different values for . . . a serving cell identifier assigned to the primary secondary cell in the secondary cell group; and In the same field of endeavor, however, TSENG teaches: configur[ing] different values for . . . a serving cell identifier assigned to the primary secondary cell in the secondary cell group; and (¶ 0010: [T]he Serving Cell index value=0 is mapped to a special cell of a cell group corresponding to the at least one logical channel, the special cell is . . . a primary secondary cell (PSCell) in a secondary cell group (SCG); ¶ 0086: [T]o a logical channel of SCG, the ServCellIndex=0 may be applied to indicate the PSCell in the SCG [TSENG’s mapping of an index value=0 to a “special cell” implies that index values mapped to non-PSCells in the SCG are something other than zero.]) It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify TSUBOI’s primary secondary cell (PSCell) addition and SCell addition procedures to provide a defined index value (i.e., 0) as taught by TSENG to map to a “special cell” (i.e., a PSCell in a secondary cell group (SCG) such that in a multiple cell group environment, a base station and a terminal can communicate efficiently. See TSENG, at ¶¶ 0010, 0015. Thus, the Examiner finds that considering the inferences and creative steps—or even routine steps—that one of ordinary skill in the art would have employed at the date of filing of the application, it would have been obvious to combine the teachings of TSUBOI and TSENG to render obvious the claimed feature of configuring different values for a secondary cell identifier assigned to the secondary cell in the secondary cell group, and a serving cell identifier assigned to the primary secondary cell in the secondary cell group. See MPEP § 2143. Regarding claim 7, the combination of TSENG and TSUBOI, as applied above, renders obvious the radio base station of claim 1. TSUBOI further discloses: wherein the processor configures different values for serving cell identifiers each of which is assigned to the primary cell in the master cell group and the primary secondary cell in the secondary cell group. (¶¶ 0219, 0229: [A]n index (ServCellIndex) for identifying all serving cells including the SCellIndex and an index of the PCell (index 0) may be defined) Regarding claim 8, the combination of TSENG and TSUBOI, as applied above, renders obvious the radio base station of claim 1. TSUBOI further discloses: wherein the processor configures different values for secondary cell identifiers each of which is assigned to the secondary cell in the master cell group and the secondary cell in the secondary cell group. (¶ 0229: The SCG-ConfigInfo may include information indicating a value or range of the SCellIndex that can be used in the SCG. This allows the SN to configure the SCellIndex independently from the MN without the SCellIndex overlapping those of the MCG; ¶ 0242: In a case that the MN adds the SCell in the MCG, SCellIndex that does not overlap SCellIndex already assigned to the MCG SCell or SCellIndex already assigned to the SCG SCell is selected and assigned to an added cell; ¶ 0243: The SN selects the SCellIndex that does not overlap SCellIndex already assigned to the SCG SCell from the list of values or the range of a value, and assigns the selected SCellIndex to the added cell (step S806); ¶ 0244: [W]ith reference to FIG. 9[, t]he SN selects the SCellIndex that does not overlap SCellIndex already assigned to the MCG SCell or SCellIndex already assigned to the SCG SCell) Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the Examiner should be directed to Garth D Richmond whose telephone number is (703)756-4559. The Examiner can normally be reached M-F 8 a.m. - 5 p.m. ET. 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, Kathy Wang-Hurst can be reached at 571-720-5371. 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. /GARTH D RICHMOND/Examiner, Art Unit 2644 /SAID M ELNOUBI/Examiner, Art Unit 2644
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Prosecution Timeline

Sep 27, 2023
Application Filed
Sep 16, 2025
Non-Final Rejection mailed — §103
Dec 15, 2025
Response Filed
Jan 02, 2026
Final Rejection mailed — §103
Mar 31, 2026
Response after Non-Final Action
May 01, 2026
Request for Continued Examination
May 12, 2026
Response after Non-Final Action
May 26, 2026
Non-Final Rejection mailed — §103 (current)

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Prosecution Projections

3-4
Expected OA Rounds
71%
Grant Probability
91%
With Interview (+20.6%)
3y 0m (~4m remaining)
Median Time to Grant
High
PTA Risk
Based on 17 resolved cases by this examiner. Grant probability derived from career allowance rate.

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