Prosecution Insights
Last updated: April 19, 2026
Application No. 18/625,340

METHOD AND APPARATUS FOR PROCESSING MULTICAST SERVICE, AND NETWORK DEVICE

Non-Final OA §102§103
Filed
Apr 03, 2024
Examiner
ISLAM, ROWNAK
Art Unit
2474
Tech Center
2400 — Computer Networks
Assignee
Vivo Mobile Communication Co., Ltd.
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
385 granted / 435 resolved
+30.5% vs TC avg
Moderate +14% lift
Without
With
+14.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
27 currently pending
Career history
462
Total Applications
across all art units

Statute-Specific Performance

§101
3.1%
-36.9% vs TC avg
§103
65.4%
+25.4% vs TC avg
§102
10.3%
-29.7% vs TC avg
§112
8.0%
-32.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 435 resolved cases

Office Action

§102 §103
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 . DETAILED ACTION This office action is a response to application no. 18/625,340 filed on 04/03/2024. Claims 1 – 20 are pending and ready for examination. Priority This application a continuation of International Application No. PCT/CN2022/123797, filed October 8, 2022, which claims priority to Chinese Patent Application No. 202111171937.1, filed October 8, 2021. Information Disclosure Statement The information disclosure statement (IDS) submitted on 04/03/2024 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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 6, 8 – 10, 16 and 18 – 20 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by GODIN et al. (GODIN hereinafter referred to GODIN) (US 2024/0073649 A1, relied on filing date of US Provisional application no. 63/135,051 that properly supports all citation). Regarding claim 6, GODIN teaches a method (Title, SMF-CENTRIC MBS ACTIVATION WITH GROUP PAGING) for processing a multicast service (Abstract, Network devices and a method for providing a session management function (SMF)-centric multicast and broadcast services (MBS) activation), comprising: receiving, by a second core network function (Fig.5, AMF 210), first area information ([0116], information included in AMF MBS activate message; Fig.5, S1050. [0115], SMF 220 transmits an activate message to each of the determined and/or identified AMFs, e.g., AMF 210. Here, the information in the activate message is considered as first area information), and performing, by the second core network function, a first operation based on the first area information (Fig.5 and [0116], in operation S1060, the AMF 210 determines and/or calculates a group paging area based on the information included in the AMF MBS activate message), wherein the first operation comprises at least one of the following (Due to alternative language “at least one of” in the claim, examiner addresses one limitation only): selecting a first terminal; sending information about a first terminal to a first core network function; selecting a paging area (Fig.5 and [0116], the AMF 210 determines and/or calculates a group paging area for the deactivated UEs based on the information included in the AMF MBS activate message; [0026], the AMF MBS activate message causing the at least one AMF network device to trigger a group paging of the at least one UE device. Here, the AMF determines/ selects a group paging area based on the activate message); or selecting a first radio access network (RAN) node. Regarding claim 16, GODIN teaches all the features with respect to claim 6 as outlined above. GODIN further teaches a second core network function (Fig.4 and [0102], core network device is a network function (NF) device, such as AMF), comprising: a memory storing a computer program (Fig.4 and [103], memory 4300 may include various program code including computer executable instructions); and a processor (Fig.4 and [0103], processor 4100) coupled to the memory and configured to execute the computer program to perform the method according to claim 6 (Fig.4 and [0104], processor 4100, is configured to control one or more elements of the core network device 4000, and thereby cause the core network device 4000 to perform various operations). Regarding claims 8 and 18, GODIN teaches all the features with respect to claims 6 and 16, respectively as outlined above. GODIN further teaches wherein the first terminal is located in an area indicated by the first area information (Fig.5 and [0115], the activate message includes at least one of the MBS session identifier information, a group paging identifier …, a list of deactivated UEs associated with the receiving AMF. Here, one of the deactivated UE is considered as a first terminal, which is located in an area indicated by the first area information) and comprises at least one of the following (Due to alternative language “at least one of” in the claims, examiner addresses one limitation only): a UE in a connected state; or a UE in a radio resource control (RRC) inactive state ([0003], UE device to an idle state and/or deactivated state (e.g., the RAN node moves the UE device to an RRC inactive mode and/or an RRC idle mode, etc.). here, the deactivated state of first terminal is the RRC inactive state). Regarding claims 9 and 19, GODIN teaches all the features with respect to claims 6 and 16, respectively as outlined above. GODIN further teaches wherein the first RNA node comprises RAN nodes within the paging area ([0015], the AMF network device is caused to determine the first MBS group paging area, determine the at least one first RAN node associated with the at least one first MBS group paging area; Fig.5 and [0119], AMF 210 transmits a single MBS group paging message to each of the RAN nodes (e.g., RAN node 110) included in the determined MBS group paging area. Here, the RAN nodes are within the paging area); or the first RNA node is used to send a paging message Due to alternative language “or” in the claims, examiner addresses one limitation only). Regarding claims 10 and 20, GODIN teaches all the features with respect to claims 6 and 16, respectively as outlined above. GODIN further teaches wherein the first core network function comprises a Session Management Function (SMF) (Fig.5, SMF 220), and the second core network function comprises an Access and Mobility Management Function (AMF) (Fig.5, AMF 210). 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 of this title, 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. Claims 1 – 5, 7, 17 and 11 – 15 are rejected under 35 U.S.C. 103 as being unpatentable over GODIN in view of LI et al. (LI hereinafter referred to LI) (US 2024/0188185 A1). Regarding claim 1, GODIN teaches a method (Title, SMF-CENTRIC MBS ACTIVATION WITH GROUP PAGING) for processing a multicast service (Abstract, Network devices and a method for providing a session management function (SMF)-centric multicast and broadcast services (MBS) activation), comprising: sending, by a first core network function (Fig.5, SMF 220), first area information ([0116], information included in AMF MBS activate message) to a second core network function (Fig.5, S1050. [0115], SMF 220 transmits an activate message to each of the determined and/or identified AMFs, e.g., AMF 210. Here, AMF 210 is a second core network function and the information in the activate message is considered as first area information), wherein the first area information is used for at least one of the following processes (Due to alternative language “at least one of” in the claim, examiner addresses one limitation only): the second core network function selects a first terminal; the second core network function sends information about a first terminal to the first core network function; the second core network function selects a paging area (Fig.5 and [0116], the AMF 210 determines and/or calculates a group paging area for the deactivated UEs based on the information included in the AMF MBS activate message; [0026], the AMF MBS activate message causing the at least one AMF network device to trigger a group paging of the at least one UE device. Here, the AMF determines/ selects a group paging area based on the activate message); or the second core network function selects a first radio access network (RAN) node. GODIN does not specifically teach sending, by a first core network function, first area information to a second core network function when a multicast session or service is active. However, LI teaches a method (Title, DATA COMMUNICATION METHOD AND APPARATUS), comprising: sending, by a first core network function (Fig.6, MB-SMF), first area information to a second core network function (Fig.6, SMF) when a multicast session or service is active ([0133], When the session status is an activated state, the multicast and broadcast session management function sends the information about the service area of the MBS to the session management function; Fig.6 and [0186], when a multicast session of a local MBS is in an active state, the MB-SMF performs S601. Here, the information about the service area is considered as first area information), Therefore, it would have been obvious to one of the ordinary skill in the art before the effective filing date of the claimed invention to have modified GODIN as mentioned above and further incorporate the teaching of LI. The motivation for doing so would have been to provide a data communication method and an apparatus, to reduce a waste of transmission resources, and improve a success rate of sending data of an MBS (LI, Title and [0006]). Regarding claim 11, GODIN teaches (Title, SMF-CENTRIC MBS ACTIVATION WITH GROUP PAGING) a first core network function (Fig.4 and [0102], core network device is a network function (NF) device, such as SMF), comprising: a memory storing a computer program (Fig.4 and [103], memory 4300 may include various program code including computer executable instructions); and a processor (Fig.4 and [0103], processor 4100) coupled to the memory and configured to execute the computer program to perform operations ((Fig.4 and [0104], processor 4100, is configured to control one or more elements of the core network device 4000, and thereby cause the core network device 4000 to perform various operations), comprising: sending, by the first core network function (Fig.5, SMF 220), first area information ([0116], information included in AMF MBS activate message) to a second core network function (Fig.5, S1050. [0115], SMF 220 transmits an activate message to each of the determined and/or identified AMFs, e.g., AMF 210. Here, AMF 210 is a second core network function and the information in the activate message is considered as first area information), wherein the first area information is used for at least one of the following processes (Due to alternative language “at least one of” in the claim, examiner addresses one limitation only): the second core network function selects a first terminal; the second core network function sends information about a first terminal to the first core network function; the second core network function selects a paging area (Fig.5 and [0116], the AMF 210 determines and/or calculate a group paging area for the deactivated UEs based on the information included in the AMF MBS activate message; [0026], the AMF MBS activate message causing the at least one AMF network device to trigger a group paging of the at least one UE device. Here, the AMF determines/ selects a group paging area based on the activate message); or the second core network function selects a first radio access network (RAN) node. GODIN does not specifically teach sending, by the first core network function, first area information to a second core network function when a multicast session or service is active. However, LI teaches a method (Title, DATA COMMUNICATION METHOD AND APPARATUS), comprising: sending, by a first core network function (Fig.6, MB-SMF), first area information to a second core network function (Fig.6, SMF) when a multicast session or service is active ([0133], When the session status is an activated state, the multicast and broadcast session management function sends the information about the service area of the MBS to the session management function; Fig.6 and [0186], when a multicast session of a local MBS is in an active state, the MB-SMF performs S601. Here, the information about the service area is considered as first area information), Therefore, it would have been obvious to one of the ordinary skill in the art before the effective filing date of the claimed invention to have modified GODIN as mentioned above and further incorporate the teaching of LI. The motivation for doing so would have been to provide a data communication method and an apparatus, to reduce a waste of transmission resources, and improve a success rate of sending data of an MBS (LI, Title and [0006]). Regarding claims 2 and 12, combination of GODIN and LI teaches all the features with respect to claims 1 and 11, respectively as outlined above. GODIN does not specifically teach wherein the first area information comprises at least one of the following: at least one cell identity; or at least one tracking area identity. However, LI teaches wherein the first area information comprises at least one of the following: at least one cell identity; or at least one tracking area identity ([0084] and [0114], the service area of the MBS is indicated by using an element, e.g., a cell identity list and/or a tracking area identity list (TAI list) of the multicast session). Therefore, it would have been obvious to one of the ordinary skill in the art before the effective filing date of the claimed invention to have modified combination of GODIN and LI as mentioned in claims 1 and 11 and further incorporate the teaching of LI. The motivation for doing so would have been to provide a data communication method and an apparatus, to reduce a waste of transmission resources, and improve a success rate of sending data of an MBS (LI, Title and [0006]). Regarding claims 3 and 13, combination of GODIN and LI teaches all the features with respect to claims 1 and 11, respectively as outlined above. GODIN further teaches wherein the first terminal is located in an area indicated by the first area information (Fig.5 and [0115], the activate message includes at least one of the MBS session identifier information, a group paging identifier …, a list of deactivated UEs associated with the receiving AMF. Here, one of the deactivated UE is considered as a first terminal, which is located in an area indicated by the first area information) and comprises at least one of the following (Due to alternative language “at least one of” in the claims, examiner addresses one limitation only): a UE in a connected state; or a UE in a radio resource control (RRC) inactive state ([0003], UE device to an idle state and/or deactivated state (e.g., the RAN node moves the UE device to an RRC inactive mode and/or an RRC idle mode, etc.). here, the deactivated state of first terminal is the RRC inactive state). Regarding claims 4 and 14, combination of GODIN and LI teaches all the features with respect to claims 1 and 11, respectively as outlined above. GODIN further teaches wherein the first RNA node comprises RAN nodes within the paging area ([0015], the AMF network device is caused to determine the first MBS group paging area, determine the at least one first RAN node associated with the at least one first MBS group paging area; Fig.5 and [0119], AMF 210 transmits a single MBS group paging message to each of the RAN nodes (e.g., RAN node 110) included in the determined MBS group paging area. Here, the RAN nodes are within the paging area); or the first RNA node is used to send a paging message (Due to alternative language “or” in the claims, examiner addresses one limitation only). Regarding claims 5 and 15, combination of GODIN and LI teaches all the features with respect to claims 1 and 11, respectively as outlined above. GODIN further teaches wherein the first core network function comprises a Session Management Function (SMF) (Fig.5, SMF 220), and the second core network function comprises an Access and Mobility Management Function (AMF) (Fig.5, AMF 210). Regarding claims 7 and 17, GODIN teaches all the features with respect to claims 6 and 16, respectively as outlined above. GODIN does not specifically teach wherein the first area information comprises at least one of the following: at least one cell identity; or at least one tracking area identity. However, LI teaches wherein the first area information comprises at least one of the following: at least one cell identity; or at least one tracking area identity ([0084] and [0114], the service area of the MBS is indicated by using an element, e.g., a cell identity list and/or a tracking area identity list (TAI list) of the multicast session). Therefore, it would have been obvious to one of the ordinary skill in the art before the effective filing date of the claimed invention to have modified GODIN as mentioned in claims 6 and 16 and further incorporate the teaching of LI. The motivation for doing so would have been to provide a data communication method and an apparatus, to reduce a waste of transmission resources, and improve a success rate of sending data of an MBS (LI, Title and [0006]). Conclusion The prior arts made of record and not relied upon are considered pertinent to applicant's disclosure. LI et al. (Pub. No. US 2021/0219106 A1) – “MULTICAST/BROADCAST SERVICE TRANSMISSION METHOD, CORE NETWORK ELEMENT, AND TERMINAL DEVICE” discloses a first core network element includes: obtaining a multicast/broadcast access type supported by a terminal device that is located in a first service area of a multicast/broadcast service and that belongs to a group corresponding to the multicast/broadcast service; determining a multicast/broadcast transmission type of the multicast/broadcast service in the first service area based on the multicast/broadcast access type supported by the terminal device; and notifying an access network element corresponding to the multicast/broadcast service to use the multicast/broadcast transmission type to transmit data of the multicast/broadcast service. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ROWNAK ISLAM whose telephone number is (571)272-8009. The examiner can normally be reached on Monday - Friday 8:30 am - 6 pm (EST). If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Michael Thier can be reached on 571-272-2832. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. 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. /ROWNAK ISLAM/ Primary Examiner, Art Unit 2474
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Prosecution Timeline

Apr 03, 2024
Application Filed
Mar 05, 2026
Non-Final Rejection — §102, §103 (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
99%
With Interview (+14.4%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 435 resolved cases by this examiner. Grant probability derived from career allow rate.

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