Prosecution Insights
Last updated: April 19, 2026
Application No. 18/693,917

FAILURE DETECTION AND RECOVERY IN WIRELESS COMMUNICATIONS

Non-Final OA §103
Filed
Mar 20, 2024
Examiner
QIN, ZHIREN
Art Unit
2411
Tech Center
2400 — Computer Networks
Assignee
LG Electronics Inc.
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
96%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
417 granted / 487 resolved
+27.6% vs TC avg
Moderate +11% lift
Without
With
+10.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
32 currently pending
Career history
519
Total Applications
across all art units

Statute-Specific Performance

§101
4.2%
-35.8% vs TC avg
§103
53.4%
+13.4% vs TC avg
§102
13.9%
-26.1% vs TC avg
§112
14.8%
-25.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 487 resolved cases

Office Action

§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 . 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, 10, 13-14 and 18 is/are rejected under 35 U.S.C. 103 as being unpatentable over LIU (US 20230189383) in view of Jang (US 20230371109). With respect to independent claims: Regarding claim(s) 1/14, Liu teaches A method performed by a user equipment (UE) in a wireless communication system ([Fig.4]), the method comprising: entering a deactivated state for a cell group ([0077], “Upon reception of the RRC message, the UE can deactivate the SCG,” wherein the SCG is Second Cell Group.); initiating a transmission of failure information for the cell group ([0074], “when SCG is deactivated, and UE evaluates that RLF happens on PSCell, the UE sends SCG failure report to MN.” The UE may initiate a SCG failure report to send to the MN.) while the cell group is in the deactivated state ([0076], “indicates UE to perform RLM on PSCell when SCG is deactivated.”); and suspending a transmission on the cell group ([0077], “Upon reception of the RRC message, the UE can deactivate the SCG and stops DL/UL data transmission.” And [0078], “When T310 timer expires, the UE can declare RLF on PSCell, then the UE can send SCGFailureInformation report to MN.” In other words, transmission of the SCG failure report is suspended until T310 timer expires.) based on a cause of initiating the transmission of the failure information for the cell group ([0074], “when SCG is deactivated, and UE evaluates that RLF happens on PSCell, the UE sends SCG failure report to MN.”), ... wherein the transmission on the cell group is suspended ([0077], “Upon reception of the RRC message, the UE can deactivate the SCG and stops DL/UL data transmission.” And [0078], “When T310 timer expires, the UE can declare RLF on PSCell, then the UE can send SCGFailureInformation report to MN.”) based on the cause being a second cause ([0074], “when SCG is deactivated, and UE evaluates that RLF happens on PSCell, the UE sends SCG failure report to MN.”) . However, Liu does not specifically disclose wherein the transmission on the cell group is not suspended based on the cause being a first cause that a beam failure for the cell group is detected while the cell group is in the deactivated state. In an analogous art, Jang discloses entering a deactivated state for a cell group ([Fig.1J and 0109], “the UE may deactivate the corresponding SCG and stop data transmission and reception in the corresponding SCG (1j-07).”); initiating a transmission of failure information for the cell group ([0110], “the UE may detect an above-described BFD ... in a state where the SCG is deactivated,” wherein the BFD is Beam Failure Detection.) while the cell group is in the deactivated state ([0110], “even after receiving the deactivation command, the UE may continuously measure a signal for the PSCell.”); ... wherein the transmission on the cell group is not suspended ([0112], “UE informs the MCG that a BFR of the corresponding PSCell has occurred ... and the information transmitted through the BFR MAC CE may be delivered to the SCG.”) based on the cause being a first cause that a beam failure for the cell group is detected ([0110], “If the UE detects a BFD of the PSCell,” then the UE may report the detected Beam Failure Detection (BFD)) while the cell group is in the deactivated state ([0110], “the UE may detect an above-described BFD ... in a state where the SCG is deactivated.”). Therefore, it would have been obvious to one with ordinary skill in the art at the time before the effective filing date of the claim invention to have modified the method of Liu to specify reporting to a MCG and SCG when in a state where the CSG is deactivated as taught by Jang. The motivation/suggestion would have been because there is a need to report beam failure detection. Regarding claim(s) 18, Liu teaches A network node ([Fig.1], NW 104) adapted to operate in a wireless communication system, the network node comprising: at least one transceiver; at least processor; and at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising: transmitting, to a user equipment (UE), a deactivation command to enter a deactivated state for a cell group ([0077], “Upon reception of the RRC message, the UE can deactivate the SCG,” wherein the SCG is Second Cell Group.); receiving, from the UE, failure information for the cell group while the cell group is in the deactivated state ([0074], “when SCG is deactivated, and UE evaluates that RLF happens on PSCell, the UE sends SCG failure report to MN.” The UE may initiate a SCG failure report to send to the MN.); and transmitting, to another network node related to the cell group, the failure information ([0078], “the MN may forward the content of SCGFailureInformation to SN.”), wherein whether a transmission on the cell group is suspended is determined based on a cause of initiating the transmission of the failure information ([0077], “Upon reception of the RRC message, the UE can deactivate the SCG and stops DL/UL data transmission.” And [0078], “When T310 timer expires, the UE can declare RLF on PSCell, then the UE can send SCGFailureInformation report to MN.” In other words, transmission of the SCG failure report is suspended until T310 timer expires.) ... wherein the transmission on the cell group is suspended based on the cause being a second cause 0077], “Upon reception of the RRC message, the UE can deactivate the SCG and stops DL/UL data transmission.” And [0078], “When T310 timer expires, the UE can declare RLF on PSCell, then the UE can send SCGFailureInformation report to MN.”). However, Liu does not teach wherein the transmission on the cell group is not suspended based on the cause being a first cause that a beam failure for the cell group is detected while the cell group is in the deactivated state. In an analogous art, Jang teaches wherein the transmission on the cell group is not suspended ([0112], “UE informs the MCG that a BFR of the corresponding PSCell has occurred ... and the information transmitted through the BFR MAC CE may be delivered to the SCG.”) based on the cause being a first cause that a beam failure for the cell group is detected ([0110], “If the UE detects a BFD of the PSCell,” then the UE may report the detected Beam Failure Detection (BFD)) while the cell group is in the deactivated state ([0110], “the UE may detect an above-described BFD ... in a state where the SCG is deactivated.”). Therefore, it would have been obvious to one with ordinary skill in the art at the time before the effective filing date of the claim invention to have modified the method of Liu to specify reporting to a MCG and SCG when in a state where the CSG is deactivated as taught by Jang. The motivation/suggestion would have been because there is a need to report beam failure detection. With respect to dependent claims: Regarding claim(s) 2, Jang teaches wherein the cell group comprises a secondary cell group (SCG) including a primary secondary cell (PSCell) ([0110], “the UE may detect an above-described BFD, in which the signal of a beam transmitted by the PSCell is lost.”), and wherein the beam failure for the cell group comprises a beam failure for the PSCell ([0110], “If the UE detects a BFD of the PSCell,” then the UE may report the detected Beam Failure Detection (BFD)). Therefore, it would have been obvious to one with ordinary skill in the art at the time before the effective filing date of the claim invention to have modified the method of Liu to specify reporting to a MCG and SCG when in a state where the CSG is deactivated as taught by Jang. The motivation/suggestion would have been because there is a need to report beam failure detection. Regarding claim(s) 3, Liu teaches wherein the second cause comprises at least one of: a radio link failure (RLF) on the cell group ([0074], “when SCG is deactivated, and UE evaluates that RLF happens on PSCell, the UE sends SCG failure report to MN.”); an execution failure of a mobility command for the cell group; a configuration failure of the cell group; an integrity check failure for the cell group; or consistent uplink listen-before-talk (LBT) failures on the cell group for operation with an unlicensed band. Regarding claim(s) 4, Jang teaches detecting the beam failure for the cell group while the cell group is in the deactivated state ([0110], “the UE may detect an above-described BFD, in which the signal of a beam transmitted by the PSCell is lost, in a state where the SCG is deactivated.”), wherein the initiating of the transmission of the failure information comprises initiating a transmission of first failure information for the cell group upon detecting the beam failure for the cell group ([0110], “the UE may detect an above-described BFD ... in a state where the SCG is deactivated,” wherein the BFD is Beam Failure Detection.) while the cell group is in the deactivated state ([0110], “even after receiving the deactivation command, the UE may continuously measure a signal for the PSCell.”), and wherein the transmission on the cell group is not suspended ([0112], “UE informs the MCG that a BFR of the corresponding PSCell has occurred ... and the information transmitted through the BFR MAC CE may be delivered to the SCG.”) based on initiating the transmission of the first failure information upon detecting the beam failure for the cell group ([0110], “If the UE detects a BFD of the PSCell,” then the UE may report the detected Beam Failure Detection (BFD)) while the cell group is in the deactivated state ([0110], “the UE may detect an above-described BFD ... in a state where the SCG is deactivated.”); and transmitting, to a network, the first failure information based on initiating the transmission of the first failure information ([0112], “UE informs the MCG that a BFR of the corresponding PSCell has occurred ... and the information transmitted through the BFR MAC CE may be delivered to the SCG.”). Therefore, it would have been obvious to one with ordinary skill in the art at the time before the effective filing date of the claim invention to have modified the method of Liu to specify reporting to a MCG and SCG when in a state where the CSG is deactivated as taught by Jang. The motivation/suggestion would have been because there is a need to report beam failure detection. Regarding claim(s) 5, Jang teaches wherein the first failure information informs that the beam failure is detected on the cell group ([0112], “UE informs the MCG that a BFR of the corresponding PSCell has occurred ... and the information transmitted through the BFR MAC CE may be delivered to the SCG.”). Therefore, it would have been obvious to one with ordinary skill in the art at the time before the effective filing date of the claim invention to have modified the method of Liu to specify reporting to a MCG and SCG when in a state where the CSG is deactivated as taught by Jang. The motivation/suggestion would have been because there is a need to report beam failure detection. Regarding claim(s) 10, Liu teaches transmitting the failure information to a network and suspending the transmission on the cell group based on initiating the transmission of the failure information upon detecting the second cause ([0077], “Upon reception of the RRC message, the UE can deactivate the SCG and stops DL/UL data transmission.” And [0078], “When T310 timer expires, the UE can declare RLF on PSCell, then the UE can send SCGFailureInformation report to MN.” In other words, transmission of the SCG failure report is suspended until T310 timer expires.). Regarding claim(s) 13, Liu teaches wherein the UE is in communication with at least one of a mobile device, a network ([Fig.1]), or autonomous vehicles other than the UE. Claim(s) 12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Liu in view of Jang, and further in view of PURKAYASTHA (US 20220007446). Regarding claim(s) 12, PURKAYASTHA teaches wherein the deactivated state comprises a state in which the UE does not monitor a control channel on the cell group ([0052], “When a UE is operating in the SCG deactivated state, the UE may refrain from monitoring a physical downlink control channel (PDCCH) on the PSCell.”)or monitors sparser resources for a control channel on the cell group than in an activated state. Therefore, it would have been obvious to one with ordinary skill in the art at the time before the effective filing date of the claim invention to have modified the method of Liu to specify SCG deactivated state as taught by PURKAYASTHA. The motivation/suggestion would have been because there is a need to save energy. Allowable Subject Matter Claims 6-9 and 11 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 Any inquiry concerning this communication or earlier communications from the examiner should be directed to ZHIREN QIN whose telephone number is (571)272-5444. The examiner can normally be reached on M-F 9-6 PM. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Derrick Ferris can be reached on 571-272-3123. 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. /ZHIREN QIN/Examiner, Art Unit 2411
Read full office action

Prosecution Timeline

Mar 20, 2024
Application Filed
Feb 28, 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
86%
Grant Probability
96%
With Interview (+10.8%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 487 resolved cases by this examiner. Grant probability derived from career allow rate.

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