Prosecution Insights
Last updated: May 29, 2026
Application No. 18/189,355

SESSION ESTABLISHMENT METHOD AND APPARATUS

Non-Final OA §103
Filed
Mar 24, 2023
Priority
Sep 24, 2020 — CN 202011016216.9 +1 more
Examiner
MURILLO GARCIA, FABRICIO R
Art Unit
2633
Tech Center
2600 — Communications
Assignee
Huawei Technologies Co., Ltd.
OA Round
2 (Non-Final)
85%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
498 granted / 588 resolved
+22.7% vs TC avg
Strong +57% interview lift
Without
With
+56.7%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
20 currently pending
Career history
614
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
78.1%
+38.1% vs TC avg
§102
5.5%
-34.5% vs TC avg
§112
14.0%
-26.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 588 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 Arguments Following response to arguments is based on Applicant’s arguments filed on 15 October 2025. Regarding Previous Claim Objections Previous objection to claim 16 has been withdrawn in view of the amendment to the objected claim. Regarding Previous Rejection Under 35 USC § 102/103 Applicant’s arguments [Pages 7-10] with respect to rejection of claims 1, 13, 20 have been fully considered but are not persuasive. Therefore, the rejection has been withdrawn. Regarding claim 1, on pages 9-10, Applicants argue that Chiba fails to teach former limitations from claim 2, “wherein the information about the second core network device corresponding to the terminal device comprises at least one of: an identifier of the terminal device or an identifier of the second core network device, and the identifier of the terminal device is associated with the identifier of the second core network device”. The Examiner respectfully disagrees and submits as follows. Claim 1 is not providing further details but a general recitation of identifiers, without showing how these identifiers are actually “associated” or what this association is. Furthermore, it is a little bit hard to understand the scope of the claim as there are recited several core network devices, requests, without clearly detailing whom these elements belong; thus, leaving an open interpretation of the limitations. The Examiner respectfully recommends to clearly disclose the different elements involved in the scope, their functionalities, and specifying whether they belong, for example, to a same network or different network. For the purpose of the examination, the Examiner is providing a general example of limitations showing a clear scope and functionalities: “a first core network of a first network in communication with a terminal device of a second core network of a second network… wherein a first identifier of the terminal device and a second identifier of the second core network are associated by both identifiers indicating which session management is to be implemented”. Hence, based on the above reasoning, Chiba discloses that each component of system in Fig. 1 intercommunicates each other (e.g. UE 10 and CNs) [Paragraph 42], and that each of said element comprises an identifier [Paragraphs 46, 96]. Therefore, a person having ordinary skills in the art would recognize that the ID of UE 10 is then associated in a certain way with the ID of the core networks; and that Alam (primary reference) will then have their UE 102’s ID is associated with CN 120’s ID. Regarding claims 13 and 20, these claims have been amended to incorporate similar limitations to those set forth in independent claim 1, and are rejected based on similar reasoning. Therefore, in view of the above reasons, the Examiner maintains the rejections. Claim Status Claims 1, 7, 13, 16 have been amended. Claim 2 has been canceled. Thus, claims 1 and 3-20 are presented for examination. 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 and 3-20 are rejected under 35 U.S.C. 103 as being unpatentable over Alam (US Patent Application Publication No. 2018/0176876) in view of Chiba et al. (US Patent Application Publication No. 2020/0053615). Regarding claim 1, Alam teaches a session establishment method (Figs. 1, 5 [Paragraphs 19-40, 86-90]), wherein the method comprises: receiving, by a first core network device (CN 108), a first request from an access network device (request from AN 110), wherein the first request is useable to request to establish a session of a terminal device (UE 102 requesting session connection), and the first request comprises information about a second core network device corresponding to the terminal device (request to be directed to CN 120); sending, by the first core network device (CN 108), a second request to the second core network device based on the first request (CN 108 communicates CN 120 about the request from UE 102); receiving, by the first core network device, a second response from the second core network device, wherein the second response is useable to respond to the second request (CN 108 receives acceptance or rejection from CN 120); sending, by the first core network device, a first response to the access network device, wherein the first response is useable to respond to the first request (CN 108 communicates UE 102 about CN 120’s decision); and establishing, by the first core network device, the session based on the first response (thus, CN 108 initiates session with UE 102 based on the response from CN 120); [ . However, Alam does not explicitly mention: wherein the information about the second core network device corresponding to the terminal device comprises at least one of: an identifier of the terminal device or an identifier of the second core network device, and the identifier of the terminal device is associated with the identifier of the second core network device. Chiba teaches, in a similar field of endeavor of communication systems, the following: wherein the information about the second core network device corresponding to the terminal device comprises at least one of: an identifier of the terminal device or an identifier of the second core network device, and the identifier of the terminal device is associated with the identifier of the second core network device (for the disclosed system, when UE intends to connect to second CN via first CN, the UE knows the ID of the second CN [Paragraphs 46, 96]. Additionally, claim 1 is not providing further details but a general recitation of identifiers, without showing how these identifiers are actually “associated” or what this association is. Furthermore, it is a little bit hard to understand the scope of the claim as there are recited several core network devices, requests, without clearly detailing whom these elements belong; thus, leaving an open interpretation of the limitations. The Examiner respectfully recommends to clearly disclose the different elements involved in the scope, their functionalities, and specifying whether they belong, for example, to a same network or different network. For the purpose of the examination, the Examiner is providing a general example of limitations showing a clear scope and functionalities: “a first core network of a first network in communication with a terminal device of a second core network of a second network… wherein a first identifier of the terminal device and a second identifier of the second core network are associated by both identifiers indicating which session management is to be implemented”. Hence, based on the above reasoning, Chiba discloses that each component of system in Fig. 1 intercommunicates each other (e.g. UE 10 and CNs) [Paragraph 42], and that each of said element comprises an identifier [Paragraphs 46, 96]. Therefore, a person having ordinary skills in the art would recognize that the ID of UE 10 is then associated in a certain way with the ID of the core networks; and that Alam (primary reference) will then have their UE 102’s ID is associated with CN 120’s ID). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the communication system (as taught by Alam) by the UE knowing ID of second CN (as taught by Chiba) for the purpose of optimizing and diversifying communication procedure (Chiba – Paragraph 4). Regarding claim 3, Alam further teaches the method according to claim 1, wherein the second core network device corresponds to the terminal device, or the second core network device corresponds to a plurality of terminal devices, the plurality of terminal devices comprising the terminal device (CN 120 corresponds to UE 102). Regarding claim 4, Alam further teaches the method according to claim 1, wherein the first core network device is configured to implement at least one of: session management, policy management, charging management, or authentication management ([Paragraphs 23, 34]). Regarding claim 5, Alam further teaches the method according to claim 4, wherein the first core network device is further configured to implement an access and mobility management function ([Paragraphs 19, 26]). Regarding claim 6, Alam further teaches the method according to claim 1, wherein the second core network device is configured to implement at least one of: subscriber data management, access management, user policy management, charging management, or session management ([Paragraphs 23, 26, 29, 74]). Regarding claim 7, Chiba further teaches the method according to claim 1, wherein the first core network device is configured to store a correspondence between the identifier of the terminal device and the identifier of the second core network device ([Paragraph 46]). Regarding claim 8, Alam further teaches the method according to claim 1, wherein the sending, by the first core network device, the second request to the second core network device based on the first request comprises: sending, by the first core network device, the second request to the second core network device based on the first request in response to the first request being valid ([Paragraphs 19-40, 86-90]). Regarding claim 9, Alam further teaches the method according to claim 1, wherein the second response comprises; first session configuration information useable to indicate session configuration information of a third core network device corresponding to the terminal device (information of other CNs 120(2), 120(N)). Regarding claim 10, Alam further teaches the method according to claim 9, wherein the establishing, by the first core network device, the session based on the first response comprises: sending, by the first core network device, a third request to the third core network device based on the first session configuration information, wherein the third request is useable to request to establish a session between the terminal device and the third core network device; and receiving, by the first core network device, a third response from the third core network device, wherein the third response is useable to respond to the third request (CN 108 sending and receiving requests/responses to/from CN 120 (N)). Regarding claim 11, Alam further teaches the method according to claim 1, wherein before the receiving, by the first core network device, the first request from the access network device, the method further comprises: receiving, by the first core network device, a fifth request from the access network device, wherein the fifth request is useable to request to authenticate a network access request of the terminal device, and the fifth request comprises the information about the second core network device corresponding to the terminal device; sending, by the first core network device, a sixth request to the second core network device based on the fifth request; receiving, by the first core network device, a sixth response from the second core network device, wherein the sixth response is useable to respond to the sixth request; and sending, by the first core network device, a fifth response to the access network device, wherein the fifth response is useable to respond to the fifth request (unless further explained, t the mere duplication of parts does not by itself distinguish from the prior art unless a new and unexpected result is produced [see MPEP 2144.04 Section VI-B], thus being applicable to claim 1 [Paragraphs 19-40, 86-90]). Regarding claim 12, Alam further teaches the method according to claim 1, wherein the first request is obtained by the access network device according to a seventh request of the terminal device ([Paragraphs 19-40, 86-90]). Regarding claim 13, Alam teaches a session establishment method (Figs. 1, 5 [Paragraphs 19-40, 86-90]), wherein the method comprises: receiving, by a second core network device (CN 120), a second request from a first core network device (CN 108 sends request to CN 120), wherein the second request is obtained by the first core network device based on a first request of an access network device (the request from CN 108 to CN 120 is based on request from UE 102 via AN 110), the first request is useable to request to establish a session of a terminal device (UE 102 wishes to initiate session), the first request is obtained by the access network device according to a seventh request of the terminal device (UE 102 sending multiple requests), and the first request comprises information about the second core network device corresponding to the terminal device (UE 102 informs CN 108 about establishing communication with CN 120); and sending, by the second core network device, a second response to the first core network device, wherein the second response is useable to respond to the second request (CN 120 responding to CN 108 about the requests); [ . However, Alam does not explicitly mention: wherein the information about the second core network device corresponding to the terminal device comprises at least one of: an identifier of the terminal device or an identifier of the second core network device, and the identifier of the terminal device is associated with the identifier of the second core network device. Chiba teaches, in a similar field of endeavor of communication systems, the following: wherein the information about the second core network device corresponding to the terminal device comprises at least one of: an identifier of the terminal device or an identifier of the second core network device, and the identifier of the terminal device is associated with the identifier of the second core network device (for the disclosed system, when UE intends to connect to second CN via first CN, the UE knows the ID of the second CN [Paragraphs 46, 96]. Additionally, claim 13 is not providing further details but a general recitation of identifiers, without showing how these identifiers are actually “associated” or what this association is. Furthermore, it is a little bit hard to understand the scope of the claim as there are recited several core network devices, requests, without clearly detailing whom these elements belong; thus, leaving an open interpretation of the limitations. The Examiner respectfully recommends to clearly disclose the different elements involved in the scope, their functionalities, and specifying whether they belong, for example, to a same network or different network. For the purpose of the examination, the Examiner is providing a general example of limitations showing a clear scope and functionalities: “a first core network of a first network in communication with a terminal device of a second core network of a second network… wherein a first identifier of the terminal device and a second identifier of the second core network are associated by both identifiers indicating which session management is to be implemented”. Hence, based on the above reasoning, Chiba discloses that each component of system in Fig. 1 intercommunicates each other (e.g. UE 10 and CNs) [Paragraph 42], and that each of said element comprises an identifier [Paragraphs 46, 96]. Therefore, a person having ordinary skills in the art would recognize that the ID of UE 10 is then associated in a certain way with the ID of the core networks; and that Alam (primary reference) will then have their UE 102’s ID is associated with CN 120’s ID). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the communication system (as taught by Alam) by the UE knowing ID of second CN (as taught by Chiba) for the purpose of optimizing and diversifying communication procedure (Chiba – Paragraph 4). Regarding claim 14, Alam further teaches the method according to claim 13, wherein the sending, by the second core network device, the second response to the first core network device comprises: sending, by the second core network device, the second response to the first core network device in response to the second request being valid ([Paragraphs 19-40, 86-90]). Regarding claim 15, Alam further teaches the method according to claim 13, wherein the second core network device corresponds to the terminal device, or the second core network device corresponds to a plurality of terminal devices comprising the terminal device (CN 120 corresponds to UE 102). Regarding claim 16, Alam further teaches the method according to claim 13, the first core network device is configured to implement at least one of: session management, policy management, charging management or authentication management ([Paragraphs 23, 34]). Regarding claim 17, Alam further teaches the method according to claim 16, wherein the first core network device is further configured to implement an access and mobility management function ([Paragraphs 19, 26]). Regarding claim 18, Alam further teaches method according to claim 13, wherein the second core network device is configured to implement at least one of: subscriber data management, access management, user policy management, charging management, or session management ([Paragraphs 23, 26, 29, 74]). Regarding claim 19, Alam further teaches the method according to claim 13, wherein the second response comprises: first session configuration information useable to indicate session configuration information of a third core network device corresponding to the terminal device (information of other CNs 120(2), 120(N)). Regarding claim 20, Alam teaches a session establishment method (Figs. 1, 5 [Paragraphs 19-40, 86-90]), wherein the method comprises: obtaining, by a terminal device, [(UE 102 knowing that it needs to finally communicate with CN 120); sending, by the terminal device, a seventh request, wherein the seventh request is useable to request to establish a session of the terminal device (UE 102 sending requests 124), and the seventh request comprises [(request 124 knowing that it needs to reach CN 120); receiving, by the terminal device, a seventh response, wherein the seventh response is useable to respond to the seventh request (UE 102 receiving acceptance or rejection from network devices); and performing, by the terminal device, the session based on the seventh response (thus, CN 108 initiates session with UE 102 based on the response from CN 120). However, Alam does not explicitly mention: an identifier [of a second core network]. Chiba teaches, in a similar field of endeavor of communication systems, the following: an identifier [of a second core network] (for the disclosed system, when UE intends to connect to second CN via first CN, the UE knows the ID of the second CN [Paragraphs 46, 96]. Additionally, claim 20 is not providing further details but a general recitation of identifier, without showing how this identifier is actually “corresponding”. Then, as applied to the other independent claims, the Examiner respectfully recommends to clearly disclose the different elements involved in the scope, their functionalities, and specifying whether they belong, for example, to a same network or different network. Hence, based on the above reasoning, Chiba discloses that each component of system in Fig. 1 intercommunicates each other (e.g. UE 10 and CNs) [Paragraph 42], and that each of said element comprises an identifier [Paragraphs 46, 96]. Therefore, a person having ordinary skills in the art would recognize that the ID of UE 10 is then associated in a certain way with the ID of the core networks; and that Alam (primary reference) will then have their UE 102’s ID is associated with CN 120’s ID). Therefore, it would have been obvious to a person having ordinary skill in the art before the effective filing date of the claimed invention to modify the communication system (as taught by Alam) by the UE knowing ID of second CN (as taught by Chiba) for the purpose of optimizing and diversifying communication procedure (Chiba – Paragraph 4). Conclusion THIS ACTION IS MADE FINAL. 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 FABRICIO R MURILLO GARCIA whose telephone number is (571)270-5708. The examiner can normally be reached 9-5pm. 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, Sam K Ahn can be reached at 5712723044. 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. January 10, 2026 /FABRICIO R MURILLO GARCIA/Primary Examiner, Art Unit 2633
Read full office action

Prosecution Timeline

Mar 24, 2023
Application Filed
May 09, 2023
Response after Non-Final Action
Jul 15, 2025
Non-Final Rejection mailed — §103
Oct 15, 2025
Response Filed
Jan 14, 2026
Final Rejection mailed — §103
Apr 14, 2026
Response after Non-Final Action
May 13, 2026
Request for Continued Examination
May 14, 2026
Response after Non-Final Action

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Prosecution Projections

2-3
Expected OA Rounds
85%
Grant Probability
99%
With Interview (+56.7%)
2y 0m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 588 resolved cases by this examiner. Grant probability derived from career allowance rate.

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