Prosecution Insights
Last updated: April 19, 2026
Application No. 18/552,825

METHOD AND DEVICE FOR MANAGING BACKHAUL INFORMATION-BASED SESSION IN WIRELESS COMMUNICATION SYSTEM

Non-Final OA §103
Filed
Mar 13, 2024
Examiner
ZAIDI, IQBAL
Art Unit
2464
Tech Center
2400 — Computer Networks
Assignee
Samsung Electronics Co., Ltd.
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
97%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allow Rate
1090 granted / 1207 resolved
+32.3% vs TC avg
Moderate +7% lift
Without
With
+6.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
32 currently pending
Career history
1239
Total Applications
across all art units

Statute-Specific Performance

§101
6.9%
-33.1% vs TC avg
§103
50.0%
+10.0% vs TC avg
§102
11.8%
-28.2% vs TC avg
§112
14.5%
-25.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1207 resolved cases

Office Action

§103
DETAILED ACTION The instant application having application No 18/552,825 filed on 03/13/2024 is presented for examination by the examiner. Claim Rejections - 35 USC § 103 The following is a quotation of pre-AIA 35 U.S.C. 103(a) which forms the basis for all obviousness rejections set forth in this Office action: (a) A patent may not be obtained though the invention is not identically disclosed or described as set forth in section 102 of this title, if the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art to which said subject matter pertains. Patentability shall not be negatived by the manner in which the invention was made. Claims 1-15 are rejected under pre-AIA 35 U.S.C. 103(a) as being unpatentable over LIU et al. (U.S 20210045006, Feb. 11, 2021) in view of Ryu et al. (US 20200396000, Dec. 17, 2020). Regarding Claim 1, LIU discloses an operating method of an access and management function (AMF) network entity in a wireless communication system capable of using a plurality of backhaul networks (page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul nodes, the corresponding core network control plane network element of the wireless backhaul nodes is an MME network element(using a plurality of backhaul networks), the corresponding core network control plane network element of the terminal an AMF network element and an SMF network element), the operating method comprising receiving a registration request message of a user terminal (page 17, par (0215), line 1-10, the terminal accesses the network through the wireless backhaul node, in the network, that corresponds to the terminal sends a create session response message(registration request message to create terminal access) for a create session request to an MME corresponding to the terminal), from a radio access network (RAN) (page 10, par (0132), line 1-10, the terminal communicates with one or more core networks through a radio access network (RAN), communicate with another terminal). LIU discloses all aspects of the claimed invention, except identifying a backhaul network used by the RAN for control plane connection from among the plurality of backhaul networks, based on the received registration request message; and determining a backhaul network to be used for control plane connection, based on the identified backhaul network. Ryu is the same field of invention teaches identifying a backhaul network used by the RAN for control plane connection from among the plurality of backhaul networks (page 21, par (0237), line 1-10, The base station send a RAN configuration update message to the AMF. The RAN configuration update message comprises an identity of the backhaul networks), based on the received registration request message (page 21, par (0237), line 1-10, the AMF send a RAN configuration update acknowledge message to the base station in response to receiving the RAN configuration update message (based on the received message)); and determining a backhaul network to be used for control plane connection, based on the identified backhaul network (page 21, par (0237), line 1-10, the RAN configuration update acknowledge message comprise an AMF name, a served globally unique AMF identifier list, and backhaul network information(wherein backhaul network information used for connection based on the identification)). LIU and Ryu are analogous art because they are from the same field of endeavor of access to a service device. It would have been obvious to one of ordinary skill in the art at the time of the invention to modify the determining a backhaul network to be used for control plane connection, based on the identified backhaul network the teaching of LIU to include the RAN configuration update acknowledge message comprise an AMF name, a served globally unique AMF identifier list, and backhaul network information the teaching of Ryu because it is providing a DNN, then the UE consider the DNN to determine which POU session to use. Regarding Claim 2, LIU discloses all aspects of the claimed invention, except the identifying of the backhaul network used by the RAN for control plane connection comprises identifying the backhaul network used by the RAN for control plane connection, by using at least one of a transport network layer (TNL) association identifier through which the registration request message is transmitted or an identifier of the RAN. Ryu is the same field of invention teaches the identifying of the backhaul network used by the RAN for control plane connection comprises identifying the backhaul network used by the RAN for control plane connection(page 21, par (0237), line 1-10, the RAN configuration update acknowledge message comprise an AMF name, a served globally unique AMF identifier list, and backhaul network information), by using at least one of a transport network layer (TNL) association identifier through which the registration request message is transmitted or an identifier of the RAN(page 2, par (0044), line 5-10, UE association a logical per UE association between a AN node and an AMF, N2AP UE-TNLA-binding between a N2AP UE association and a specific transport network layer, TNL association for a given UE). Regarding Claim 3, LIU discloses all aspects of the claimed invention, except the identifying of the backhaul network used by the RAN for control plane connection comprises identifying the backhaul network used by the RAN for control plane connection, based on pre- determined mapping information between the TNL association identifier or the identifier of the RAN and the backhaul network. Ryu is the same field of invention teaches the identifying of the backhaul network used by the RAN for control plane connection comprises identifying the backhaul network used by the RAN for control plane connection(page 21, par (0237), line 1-10, the RAN configuration update acknowledge message comprise an AMF name, a served globally unique AMF identifier list, and backhaul network information), based on pre- determined mapping information between the TNL association identifier or the identifier of the RAN and the backhaul network(page 2, par (0044), line 1-10, the AMF comprise some AMF that serve a given area and network slice(s), multiple AMF sets per AMF region and network slice(s). Application identifier that mapped to a specific application traffic detection rule, UE association a logical per UE association between a AN node and an AMF, N2AP UE-TNLA-binding between a N2AP UE association and a specific transport network layer, TNL association for a given UE). Regarding Claim 4, LIU discloses the determining of the backhaul network to be used for control plane connection comprises determining to use the backhaul network used by the RAN for control plane connection (page 10, par (0132), line 1-10, the terminal communicates with one or more core networks through a radio access network (RAN), communicate with another terminal). Regarding Claim 5, LIU discloses the plurality of backhaul networks comprise at least one terrestrial network and at least one satellite network (page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul node, the corresponding core network control plane network element of the wireless backhaul node is an MME network element(using a plurality of backhaul networks). Regarding Claim 6, LIU discloses transmitting, to a session management function (SMF) network entity, information about the determined backhaul network to be used for control plane connection(page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul node, the corresponding core network control plane network element of the wireless backhaul node is an MME network element(using a plurality of backhaul networks), the corresponding core network control plane network element of the terminal an AMF network element and an SMF network element). Regarding Claim 7, LIU discloses an operating method of a session management function (SMF) network entity in a wireless communication system capable of using a plurality of backhaul networks (page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul node, the corresponding core network control plane network element of the wireless backhaul node is an MME network element(using a plurality of backhaul networks), the corresponding core network control plane network element of the terminal an AMF network element and an SMF network element), the operating method comprising obtaining information about a backhaul network used by an access and management function (AMF) network entity for control plane connection, from among the plurality of backhaul networks(page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul node, the corresponding core network control plane network element of the wireless backhaul node is an MME network element(using a plurality of backhaul networks), the corresponding core network control plane network element of the terminal an AMF network); determining a backhaul network to be used for user plane connection, from among the plurality of backhaul networks(page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul node, the corresponding core network control plane network element of the wireless backhaul node is an MME network element(using a plurality of backhaul networks). LIU discloses all aspects of the claimed invention, except based on the information about the backhaul network used for control plane connection; and transmitting information about the determined backhaul network to be used for user plane connection to a radio access network (RAN). Ryu is the same field of invention teaches based on the information about the backhaul network used for control plane connection(page 21, par (0237), line 1-10, the RAN configuration update acknowledge message comprise an AMF name, a served globally unique AMF identifier (GUAM!) list, and backhaul network information); and transmitting information about the determined backhaul network to be used for user plane connection to a radio access network (RAN) (page 21, par (0237), line 1-10, The base station may send a RAN configuration update message to the AMF. The RAN configuration update message comprises an identity of the base station). LIU and Ryu are analogous art because they are from the same field of endeavor of access to a service device. It would have been obvious to one of ordinary skill in the art at the time of the invention to modify the determining a backhaul network to be used for control plane connection, based on the identified backhaul network the teaching of LIU to include the RAN configuration update acknowledge message comprise an AMF name, a served globally unique AMF identifier list, and backhaul network information the teaching of Ryu because it is providing a DNN, then the UE consider the DNN to determine which POU session to use. Regarding Claim 8, LIU discloses the determining of the backhaul network to be used for user plane connection comprises determining the backhaul network used for control plane connection as the backhaul network to be used for user plane connection(page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul node, the corresponding core network control plane network element of the wireless backhaul node is an MME network element(using a plurality of backhaul networks), the corresponding core network control plane network element of the terminal an AMF network element and an SMF network element). Regarding Claim 9, LIU discloses the determining of the backhaul network to be used for user plane connection further comprises selecting a user plane function (UPF) network entity to be used for user plane connection, based on the determined backhaul network to be used for user plane connection (page 19, par (0222), line 1-10, the PLMN may employ the NTN for backhaul interface between an access network and 5G core network (e.g. AMF, UPF) the PLMN employ an NTN in both the access network and the backhaul). Regarding Claim 10, LIU discloses the transmitting of the information about the backhaul network to be used for user plane connection to the RAN comprises: determining an Internet Protocol (IP) address range assignable by the RAN to a user terminal for user plane connection, based on the backhaul network to be used for user plane connection; and transmitting information about the determined IP address range to the RAN (page 1, par (0003), line 1-10, the RN accesses the access network device through a wireless backhaul link, and the RN communicates with the terminal through a radio access link. For the terminal, the RN used as a cell managed by the access network device, and the RN performs forwarding between the terminal and the access network device based on an IP data packet. Wireless backhaul means that data is transmitted to a corresponding core network by using a radio access technology (RAT)). Regarding Claim 11, LIU discloses the determining of the IP address range assignable by the RAN to the user terminal for user plane connection comprises determining the IP address range assignable by the RAN to the user terminal for user plane connection (page 1, par (0003), line 1-10, the RN accesses the access network device through a wireless backhaul link, and the RN communicates with the terminal through a radio access link. For the terminal, the RN used as a cell managed by the access network device, and the RN performs forwarding between the terminal and the access network device based on an IP data packet. Wireless backhaul means that data is transmitted to a corresponding core network by using a radio access technology (RAT)). LIU discloses all aspects of the claimed invention, except based on pre-determined mapping information between the IP address range assignable to the user terminal and the backhaul network. Ryu is the same field of invention teaches based on pre-determined mapping information between the IP address range assignable to the user terminal and the backhaul network (page 2, par (0044), line 1-10, the AMF comprise some AMF that serve a given area and network slice(s), multiple AMF sets per AMF region and network slice(s). Application identifier that mapped to a specific application traffic detection rule, UE association a logical per UE association between a AN node and an AMF, N2AP UE-TNLA-binding between a N2AP UE association and a specific transport network layer, TNL association for a given UE). Regarding Claim 12, LIU discloses the transmitting of the information about the backhaul network to be used for user plane connection to the RAN comprises: determining a network instance to be used by the RAN for user plane connection, based on the backhaul network to be used for user plane connection(page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul node, the corresponding core network control plane network element of the wireless backhaul node is an MME network element(using a plurality of backhaul networks); and transmitting information about the determined network instance to the RAN)(page 10, par (0132), line 1-10, the terminal communicates with one or more core networks through a radio access network (RAN), communicate with another terminal). Regarding Claim 13, LIU discloses the determining of the network instance to be used by the RAN for user plane connection comprises determining the network instance to be used by the RAN for user plane connection(page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul node, the corresponding core network control plane network element of the wireless backhaul node is an MME network element(using a plurality of backhaul networks), the corresponding core network control plane network element of the terminal an AMF network element and an SMF network element). LIU discloses all aspects of the claimed invention, except based on pre- determined mapping information between the network instance to be used for user plane connection and the backhaul network. Ryu is the same field of invention teaches based on pre- determined mapping information between the network instance to be used for user plane connection and the backhaul network (page 2, par (0044), line 1-10, the AMF comprise some AMF that serve a given area and network slice(s), multiple AMF sets per AMF region and network slice(s). Application identifier that mapped to a specific application traffic detection rule, UE association a logical per UE association between a AN node and an AMF, N2AP UE-TNLA-binding between a N2AP UE association and a specific transport network layer, TNL association for a given UE). Regarding Claim 14, LIU discloses an access and management function (AMF) network entity configured to operate according to the operating method of claim 1(page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul node, the corresponding core network control plane network element of the wireless backhaul node is an MME network element(using a plurality of backhaul networks), the corresponding core network control plane network element of the terminal an AMF network element and an SMF network element). Regarding Claim 15, LIU discloses a session management function (SMF) network entity configured to operate according to the operating method of claim 7(page 9, par(0123), line 1-10, the core network user plane network element corresponding to the wireless backhaul node, the corresponding core network control plane network element of the wireless backhaul node is an MME network element(using a plurality of backhaul networks), the corresponding core network control plane network element of the terminal an AMF network element and an SMF network element). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure are: WANG et al. (US 20230037031, Feb. 2, 2023) teaches EDGE Aware Distributed Network. Any inquiry concerning this communication or earlier communications from the examiner should be directed to IQBAL ZAIDI whose telephone number is (571)270-3943. The examiner can normally be reached on M to Thu 8.a.m to 6.p.m.. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, NGO RICKY can be reached on 571-272-3139. 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). /IQBAL ZAIDI/ Primary Examiner, Art Unit 2464
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Prosecution Timeline

Mar 13, 2024
Application Filed
Feb 21, 2026
Non-Final Rejection — §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
90%
Grant Probability
97%
With Interview (+6.6%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 1207 resolved cases by this examiner. Grant probability derived from career allow rate.

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