Prosecution Insights
Last updated: April 19, 2026
Application No. 17/919,150

Application Function Node, Access and Mobility Management Function Node, System and Methods in a Communications Network

Non-Final OA §103§112
Filed
Oct 14, 2022
Examiner
ZHANG, ZHENSHENG
Art Unit
2474
Tech Center
2400 — Computer Networks
Assignee
Telefonaktiebolaget Lm Ericsson (Publ)
OA Round
3 (Non-Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
2y 9m
To Grant
88%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
287 granted / 380 resolved
+17.5% vs TC avg
Moderate +12% lift
Without
With
+12.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
39 currently pending
Career history
419
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
71.6%
+31.6% vs TC avg
§102
7.5%
-32.5% vs TC avg
§112
10.0%
-30.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 380 resolved cases

Office Action

§103 §112
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 11/3/2025 has been entered. Response to Arguments Applicant’s arguments regarding the 103 rejection have been carefully considered and they are moot because they do not apply to the new references used in the current office action. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 27-31, 36-40 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Regarding claims 27 and 36, the claims recites the limitation “detecting that usage of the frequency of the UE changes”. Here “the frequency of the UE” is not defined. Is it the FR1 (or FR2) of the UE? There is insufficient antecedent basis in the claim. Claims 28-31, 37-40 are rejected as well since they depend on the rejected claims. 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. Claims 23-40 are rejected under 35 U.S.C. 103 as being unpatentable over Bharatia (US 2018/0270778) in view of Kim (EP 3 576 440). Regarding claim 23, Bharatia discloses a method performed by an Application Function (AF) node, for handling a data session for a User Equipment (UE) in a communication network (fig. 4), the method comprising: obtaining information about usage of a predetermined frequency range FR1 for the UE from an Access and Mobility management Function (AMF) node (fig. 4, [0080-86][0104], step 8, the AMF may need to inform the AF regarding the mobility state of a specific UE. In this case, the AMF is expected to retrieve the list of events subscribed by the AF and respond to the AF via the NEF; sending event notification, here the evens may include usage of the frequency for the UE; the AF may also subscribe at this point to notification for bearer level events (or frequency events) related to the service information); obtaining information about usage of a predetermined frequency range FR2,different to said frequency range FR1, for the UE from the AMF node (fig. 4, [0080-86][0104], there may be multiple occurrence of the events subscribed by the AF; step 8, the AMF may need to inform the AF regarding the mobility state of a specific UE. In that case, the AMF is expected to retrieve the list of events subscribed by the AF and respond to the AF via the NEF; sending event notification, here the evens may include usage of the frequency for the UE, the AF may also subscribe at this point to notification for bearer level events (or frequency ) related to the service information). Bharatia only implicitly discloses providing event information about a first/second frequency range for the UE (Bharatia, [0104], the AF may also subscribe at this point to notification for mobility and/or bearer level events related to the service information. The AF instructs the SMF to report bearer level events related to the corresponding PCC rules; claim 3, an event including at least one of user plane management, mobility, or a user equipment (UE) location. Here, bearer level events are related to frequency events). The bear level event related to the service information of the first channel taught by Bharatia may (or can be modified to) include usage of the frequency range, Bharatia does not explicitly disclose obtaining information about usage of a predetermined frequency range, FR1, FR2, respectively, for the UE, applying a first congestion mechanism based on the obtained information about usage of the FR1 frequency range; applying a second congestion mechanism, different to said first congestion mechanism, in response to the obtained information about usage of the FR2 frequency range. Kim discloses obtaining information about usage of a predetermined frequency range, FR1, FR2, respectively, for the UE (Kim, fig. 6, [0004][0011]-[0013], determining a first channel, among a plurality of channels, the first channel defined by a first range of frequencies or FR1, determining state information that includes first state information in the first channel; state information may include ratio of time that the first channel defined by FR1 is busy, may include number of messages transmitted or received over the first channel, may include congestion information. If the state of information satisfies a criteria, determining a third frequency range to which to reassign the first channel. Here, determining the third frequency range implicitly includes determining the state information of the third frequency range (whose usage or busy ratio must be below a threshold). Here, the state information can be included in the event notification message taught by Bharatia); applying a first congestion mechanism based on the obtained information about usage of the FR1 frequency range (Kim, [0023], may implement decentralized congestion control (DCC) to help ensure that a channel is not congested by an excess number of transmissions; may monitor a congestion level of a channel (the channel in FR1) and may take actions to mitigate high congestion levels, such as reducing output power (to reduce interference for other vehicles), increasing inter-packet transmission time (to allow other vehicles more opportunity to transmit)). applying a second congestion mechanism, different to said first congestion mechanism, in response to the obtained information about usage of the FR2 frequency range (Kim, [0023], may implement decentralized congestion control (DCC) to help ensure that a channel is not congested by an excess number of transmissions; may monitor a congestion level of a channel (the channel in FR2) and may take actions to mitigate high congestion levels, such as drop packets, and/or increase transmission rate (to shorten the transmission duration and allowing other vehicles more time to transmit). It would have been obvious to a person of ordinary skill in the art before the time of effective filing to combine the teachings of exchanging information with AMF as given by Bharatia with the teachings of performing congestion control based on usage information given by Kim. The motivation for doing so would have been to effectively utilizing the available spectrum resources and ensuring reliable and fast communication performance (Kim, [0022]). Claims 32 is rejected same as claim 23. Regarding claims 24, 33, Bharatia and Kim disclose the method according to claim 23, wherein the AF node and the AMF node communicate via a Network Exposure Function (NEF) node (Bharatia, figs. 4, 14). Regarding claim 25, 34, Bharatia and Kim disclose the method according to claim 24, wherein obtaining information about usage of the FR1 frequency range comprises: transmitting, towards the NEF node, a subscription request to a UE frequency event, wherein the subscription request comprises a UE identifier and an event identifier (Bharatia, fig. 4, [0080-86], the AF sends subscription information to the NEF along with the parameters including application identifier (ID) for which the subscription is requested, an AF address which is processing the application at the AS, address of single UE); and receiving, from the NEF node, information about usage of the FR1 frequency range for the UE (Bharatia, fig. 4, [0080-86], sending event notification; Kim, [0011]). The motivation of the combination is same as in claim 23. Regarding claim 26, 35, Bharatia and Kim disclose the method according to claim 24, wherein obtaining information about usage of the FR2 frequency range for the UE comprises receiving, from the NEF node, information about usage of the FR2 frequency range for the UE (Bharatia, fig. 4, [0080-86], sending event notification; Kim, [0011]). The motivation of the combination is same as in claim 23. Regarding claim 27, Bharatia discloses a method performed by an Access and Mobility management Function (AMF) node, for handling a data session for a User Equipment (UE) in a communication network (fig. 4), the method comprising: providing information about usage of a predetermined frequency range FR1 for the UE to an Application Function (AF) node (fig. 4, [0080-86][0104], step 8, the AMF may need to inform the AF regarding the mobility state of a specific UE. In this case, the AMF is expected to retrieve the list of events subscribed by the AF and respond to the AF via the NEF; sending event notification, here the evens may include usage of the frequency for the UE; the AF may also subscribe at this point to notification for bearer level events related to the service information); and providing information about usage of a predetermined frequency range FR2 for the UE to the AF node (fig. 4, [0080-86][0104], there may be multiple occurrence of the events subscribed by the AF; step 8, the AMF may need to inform the AF regarding the mobility state of a specific UE. In that case, the AMF is expected to retrieve the list of events subscribed by the AF and respond to the AF via the NEF; sending event notification, here the evens may include usage of the frequency for the UE, the AF may also subscribe at this point to notification for bearer level events related to the service information). Bharatia only implicitly discloses providing event information about a first/second frequency range for the UE (Bharatia, [0104], the AF may also subscribe at this point to notification for mobility and/or bearer level events related to the service information. The AF instructs the SMF to report bearer level events related to the corresponding PCC rules; claim 3, an event including at least one of user plane management, mobility, or a user equipment (UE) location). The bear level event related to the service information of the first channel taught by Bharatia may (or can be modified to) include usage of the frequency range, Bharatia does not explicitly disclose providing information about usage of a predetermined frequency range, FR1, FR2, respectively, for the UE, detecting that usage of the frequency of the UE changes. Kim discloses providing information about usage of a predetermined frequency range, FR1, FR2, respectively, for the UE (Kim, fig. 6, [0004][0011]-[0013], determining a first channel, among a plurality of channels, the first channel defined by a first range of frequencies or FR1, determining state information that includes first state information in the first channel; state information may include ratio of time that the first channel defined by FR1 is busy, may include number of messages transmitted or received over the first channel, may include congestion information. If the state of information satisfies a criteria, determining a third frequency range to which to reassign the first channel. Here, determining the third frequency range implicitly includes determining the state information of the third frequency range (whose usage or busy ratio must be below a threshold). Here, the state information can be included in the event notification message taught by Bharatia); detecting that usage of the frequency of the UE changes (Kim, [0081], detects a congestion level that exceeds a threshold (usage of the frequency range changes), and therefore sets an interference mode to be "OFF" to indicate that interference is likely to be caused by a normal situation in which a large number of DCC- based vehicles are concurrently utilizing a channel). It would have been obvious to a person of ordinary skill in the art before the time of effective filing to combine the teachings of exchanging information with AMF as given by Bharatia with the teachings of performing adjustment based on usage information given by Kim. The motivation for doing so would have been to effectively utilizing the available spectrum resources and ensuring reliable and fast communication performance (Kim, [0022]). Claims 36 is rejected same as claim 27. Regarding claims 28, 37, Bharatia and Kim disclose the method according to claim 27, wherein the AF node and the AMF node communicate via a Network Exposure Function (NEF) node (Bharatia, figs. 4, 14). Regarding claims 29, 38, Bharatia and Kim disclose the method according to claim 28, further comprising: receiving from the NEF node, a subscription request to a UE frequency event, wherein the subscription request comprises a UE identifier and an event identifier (Bharatia, fig. 4, [0080-86], the AF sends subscription information to the NEF along with the parameters including application identifier (ID) for which the subscription is requested, an AF address which is processing the application at the AS, address of single UE; Kim, [0011]). Regarding claims 30, 39, Bharatia and Kim disclose the method according to claim 28, wherein the providing information about usage of the FR1 frequency range comprises transmitting, towards the NEF node, information about usage of a first frequency for the UE (Bharatia, fig. 4, [0080-86], sending event notification; Kim, [0011]). The motivation of the combination is same as in claim 27. Regarding claims 31, 40, Bharatia and Kim disclose the method according to claim 28, wherein the providing information about usage of the FR2 frequency range comprises transmitting, towards the NEF node, information about usage of the FR2 frequency range for the UE (Bharatia, fig. 4, [0080-86], sending event notification; Kim, [0011]). The motivation of the combination is same as in claim 27. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ZHENSHENG ZHANG whose telephone number is (571)270-1985. The examiner can normally be reached Monday-Thursday 8:00am-6:00pm. 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, 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 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. /ZHENSHENG ZHANG/Primary Examiner, Art Unit 2474
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Prosecution Timeline

Oct 14, 2022
Application Filed
Apr 15, 2025
Non-Final Rejection — §103, §112
May 28, 2025
Response Filed
Jul 07, 2025
Final Rejection — §103, §112
Oct 06, 2025
Response after Non-Final Action
Nov 03, 2025
Request for Continued Examination
Nov 07, 2025
Response after Non-Final Action
Feb 06, 2026
Non-Final Rejection — §103, §112 (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

3-4
Expected OA Rounds
76%
Grant Probability
88%
With Interview (+12.1%)
2y 9m
Median Time to Grant
High
PTA Risk
Based on 380 resolved cases by this examiner. Grant probability derived from career allow rate.

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