Prosecution Insights
Last updated: October 21, 2026
Application No. 18/856,671

RELAY TRANSMISSION METHOD, SWITCHING METHOD, APPARATUS, AND USER EQUIPMENT

Non-Final OA §103
Filed
Oct 14, 2024
Priority
Apr 15, 2022 — CN 2022104011866 +1 more
Examiner
TRAN, PHUC H
Art Unit
2471
Tech Center
2400 — Computer Networks
Assignee
China Telecom Corporation Limited
OA Round
1 (Non-Final)
92%
Grant Probability
Favorable
1-2
OA Rounds
9m
Est. Remaining
94%
With Interview

Examiner Intelligence

Grants 92% — above average
92%
Career Allowance Rate
978 granted / 1067 resolved
+33.7% vs TC avg
Minimal +3% lift
Without
With
+2.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
32 currently pending
Career history
1116
Total Applications
across all art units

Statute-Specific Performance

§101
5.1%
-34.9% vs TC avg
§103
38.8%
-1.2% vs TC avg
§102
24.5%
-15.5% vs TC avg
§112
18.3%
-21.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1067 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 . Information Disclosure Statement The information disclosure statement (IDS) submitted is being considered by the examiner. Claim Objections Claim 15 objected to because of the following informalities: the claim 15 should be rewritten as “a non-transitory computer-readable storage medium having computer program” to avoid 101 rejction. Appropriate correction is required. 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. Claim(s) 1, 5, 13-16, 18, 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Paladugu et al. (Pub. No. 20230007709) in view of Ikeda et al. (Pub. No. 20230269308). - With respect to claims 1, 5, 13-16, 18, 20, Paladugu teaches a relay transmission method, comprising: performing network registration on a relay to establish a first protocol data unit session connection from the relay to a network, wherein the relay is configured to be connected to a non-third generation partnership project interworking function, and comprises a first relay and a second relay (see Fig. 1, shows the connection between UE and network; see par. 86 discloses “establishing the NAS connection may include performing 5GS registration and connection management with the 5GC over UE-to-NW relay access”; par. 91 discloses “establishing the NAS connection may further include transmitting PDU session management information associated with a PDU session to the network entity over the IPsec tunnel established with N3IWF to establish a PDU session”; par. 46, 123, 129); establishing, based on a network address allocated to a user equipment by the first relay, a second protocol data unit session connection between the first relay and the user equipment (e.g. par. 110 discloses “the method 500 may include transmitting, to the remote UE, a plurality of IP addresses for a unicast PC5 link, the one of the IP address is for relaying IKE / NAS and UP data of the remote UE via the N3IWF, and another IP address for relaying UP data of the remote UE to the DN directly” and par. 130); and Paladugu fails to teach enabling, according to a multipath transmission control protocol connection between the user equipment and the non-third generation partnership project interworking function, the user equipment to be connected to the network via the first relay and the second relay while performing signal transmission with the network, wherein the multipath transmission control protocol connection is established based on the first protocol data unit session connection and the second protocol data unit session connection. Ikeda teaches enabling, according to a multipath transmission control protocol connection between the user equipment and the non-third generation partnership project interworking function, the user equipment to be connected to the network via the first relay and the second relay while performing signal transmission with the network, wherein the multipath transmission control protocol connection is established based on the first protocol data unit session connection and the second protocol data unit session connection (e.g. par. 16-21 discloses “The relay server determines whether the terminal device is compatible with the MPTCP. When the terminal device is compatible with the MPTCP, the relay server establishes an MPTCP main session and sub-session with the terminal device, establishes a transmission control protocol (TCP) session with the service server, transmits and receives a packet to and from the service server using the TCP session, and transmits and receives a packet to and from the terminal device using the MPTCP main session and sub-session, Specifically, the relay server of the present disclosure is a relay server connected between a terminal device and a service server incompatible with a multipath transmission control protocol (MPTCP). The relay server determines whether the terminal device is compatible with the MPTCP. When the terminal device is compatible with the MPTCP, the relay server establishes an MPTCP main session and sub-session with the terminal device, establishes a transmission control protocol (TCP) session with the service server, transmits and receives a packet to and from the service server using the TCP session, and transmits and receives a packet to and from the terminal device using the MPTCP main session and sub-session”). Therefore, it would have been obvious to a person of ordinary skilled in the art before the effective filling date to implement the method of enabling multipath between user and network for fast service and protecting transmission between user and network. Allowable Subject Matter Claims 9-10, 17, 19, 21 are allowed. Claims 2-4, 6-8 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See PTO-892. . Examiner's Note: Examiner has cited particular paragraphs or columns and line numbers in the references applied to the claims above for the convenience of the applicant. Although the specified citations are representative of the teachings of the art and are applied to specific limitations within the individual claim, other passages and figures may apply as well. It is respectfully requested from the applicant in preparing responses, to fully consider the references in entirety as potentially teaching all or part of the claimed invention, as well as the context of the passage as taught by the prior art or disclosed by the Examiner. Any inquiry concerning this communication or earlier communications from the examiner should be directed to PHUC H TRAN whose telephone number is (571)272-3172. The examiner can normally be reached M-F 8-5 Flex. 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, Sujoy K. Kundu can be reached at 571-272-8586. 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. /PHUC H TRAN/Primary Examiner, Art Unit 2471
Read full office action

Prosecution Timeline

Oct 14, 2024
Application Filed
Oct 01, 2026
Non-Final Rejection mailed — §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
92%
Grant Probability
94%
With Interview (+2.6%)
2y 9m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1067 resolved cases by this examiner. Grant probability derived from career allowance rate.

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