Prosecution Insights
Last updated: April 19, 2026
Application No. 18/404,522

UNICAST SIDELINK COMMUNICATION METHOD AND APPARATUS AND TERMINAL

Non-Final OA §102§103
Filed
Jan 04, 2024
Examiner
PHUONG, DAI
Art Unit
2644
Tech Center
2600 — Communications
Assignee
Vivo Mobile Communication Co., Ltd.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
92%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
611 granted / 809 resolved
+13.5% vs TC avg
Strong +16% interview lift
Without
With
+16.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
36 currently pending
Career history
845
Total Applications
across all art units

Statute-Specific Performance

§101
3.1%
-36.9% vs TC avg
§103
51.1%
+11.1% vs TC avg
§102
20.0%
-20.0% vs TC avg
§112
9.1%
-30.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 809 resolved cases

Office Action

§102 §103
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Information Disclosure Statement The references listed in the Information Disclosure Statement filed on 07/01/24 and 05/21/25 have been considered by the examiner (see attached PTO-1449 form or PTO/SB/08A and 08B). Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale or otherwise available to the public before the effective filing date of the claimed invention. Claims 1, 6, 11 and 18 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Cheng et al. (U.S. 20230156854). For claim 1, Cheng et al. disclose a unicast sidelink communication method, comprising: establishing, by a receive end configured with a discontinuous reception (DRX) mode, a unicast sidelink with a transmit end within unicast establishment active time (at least Fig. 5 and [0100]-[0101]. Before the UE has connected to a relay, it monitors for relay discovery messages for more relays, with a much longer DRX on duration for relay selection (e.g. to monitor for discovery messages from relay 1, relay 2, and relay 3). Once the remote UE is connected to a relay UE, the remote UE can request (negotiate) a dedicated SL DRX. In the illustrated example, the remote UE connects to Relay-1, which sends the remote UE a dedicated SL DRX via PC5 RRC.); and after the unicast sidelink establishment is completed, receiving, by the receive end, a unicast service data packet by using target configuration information (at least Fig. 5, [0100]-[0101] and [0103]-[0105]. The relay UE may decide to switch the remote UE to a different SL DRX pattern. As illustrated, the relay UE may decide based on Remote UE reported SL measurements. The relay UE may instruct the remote UE to switch to a different SL DRX pattern via an RRC reconfiguration message.), wherein the target configuration information comprises parameter configuration information of second DRX, and the parameter configuration information of the second DRX is indicated by a quality of service (QoS) configuration of a unicast service (at least Fig. 5, [0100]-[0101] and [0103]-[0105]. The relay UE may decide to switch the remote UE to a different SL DRX pattern. As illustrated, the relay UE may decide based on Remote UE reported SL measurements. The relay UE may instruct the remote UE to switch to a different SL DRX pattern via an RRC reconfiguration message. The remote UE may be configured to use a first SL DRX configuration (labeled DRX pattern 1) for use when the remote UE is experiencing good relay link quality (e.g., SL-RSRP is above certain threshold). When the relay link quality is below a certain threshold, however, the remote UE can switch (or be switched) to a second DRX configuration (labeled DRX pattern 2).); and the unicast establishment active time comprises one of the following: an on-duration corresponding to first DRX; and the on-duration corresponding to the first DRX and extension time after the on-duration corresponding to the first DRX at least Fig. 5 and [0100]-[0101]. Before the UE has connected to a relay, it monitors for relay discovery messages for more relays, with a much longer DRX on duration for relay selection (e.g. to monitor for discovery messages from relay 1, relay 2, and relay 3). Once the remote UE is connected to a relay UE, the remote UE can request (negotiate) a dedicated SL DRX. In the illustrated example, the remote UE connects to Relay-1, which sends the remote UE a dedicated SL DRX via PC5 RRC.) For claim 6, Cheng et al. disclose the method according to claim 1, wherein in a case that the unicast establishment active time comprises the on-duration corresponding to the first DRX, the establishing, by a receive end, a unicast sidelink with a transmit end within unicast establishment active time comprises: in the unicast sidelink establishment process, transmitting, by the receive end with the transmit end, PC5-S and PC5-RRC information within at least one on-duration corresponding to the first DRX (at least [0074] and [0089]. The remote UE establishes PC5-S unicast link setup and obtains an IP address. The PC5 unicast link AS configuration is managed using PC5-RRC. For L3 relay scenarios, the remote UE may report its DRX preference (e.g., preferred parameters) to a relay node via PC5 RRC message.) For claims 11 and 18, the claims have features similar to claims 1 and 6 respectively. Therefore, the claims are also rejected for the same reason in claims 1 and 6. 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. Claim 7 is rejected under 35 U.S.C. 103 as being unpatentable over Cheng et al. (U.S. 20230156854) in view of Park et al. (U.S. 20230115633). For claim 7, Cheng et al. disclose the method according to claim 1, wherein after the receiving, by the receive end, a unicast service data packet by using target configuration information after the unicast sidelink establishment is completed, the method further comprises: in a case that a second condition is satisfied, stopping receiving unicast service data packets, wherein the second condition comprises at least one of the following: the receive end receives first indication information sent by the transmit end, wherein the first indication information is used to indicate the receive end to stop using the second DRX ([0074] and [0103]-[0105]. The relay UE may instruct the remote UE to switch to a different SL DRX pattern via an RRC reconfiguration message. This option generally may apply only to the L3 relay scenario. The remote UE may be configured to use a first SL DRX configuration (labeled DRX pattern 1) for use when the remote UE is experiencing good relay link quality (e.g., SL-RSRP is above certain threshold). When the relay link quality is below a certain threshold, however, the remote UE can switch (or be switched) to a second DRX configuration (labeled DRX pattern 2).) However, Chang et al. do not disclose a first timer expires. In the same field of endeavor, Park et al. disclose a first timer expires (at least [0183]. The inactivity timer may be started and then expired/terminated, and after that, the HARQ RTT/retransmission timer may be started and then expired/terminated.) Therefore, it would have been obvious to one of ordinary skill in the art at the time the invention was made to modify the invention of Cheng et al. as taught by Park et al. for purpose of saving power for sidelink communication. Claims 8-9 and 19 are rejected under 35 U.S.C. 103 as being unpatentable over Cheng et al. (U.S. 20230156854) in view of Park et al. (U.S. 20230115633) and further in view of Paladugu et al. (U.S. 20250184879). For claim 8, the combination of Cheng et al. and Park et al. disclose the method according to claim 7, wherein that the receive end receives first indication information sent by the transmit end comprises one of the following: the receive end receives the first indication information sent by the transmit end by using higher layer signaling ([0074] and [0103]-[0105]. The relay UE may instruct the remote UE to switch to a different SL DRX pattern via an RRC reconfiguration message. This option generally may apply only to the L3 relay scenario. The remote UE may be configured to use a first SL DRX configuration (labeled DRX pattern 1) for use when the remote UE is experiencing good relay link quality (e.g., SL-RSRP is above certain threshold). When the relay link quality is below a certain threshold, however, the remote UE can switch (or be switched) to a second DRX configuration (labeled DRX pattern 2).) However, the combination of Cheng et al. and Park et al. do not disclose the receive end receives the first indication information sent by the transmit end by using media access control control element (MAC-CE) signaling. In the same field of endeavor, Paladugu et al. disclose the receive end receives the first indication information sent by the transmit end by using media access control control element (MAC-CE) signaling (at least [0048]. A medium access control (MAC)-control element (MAC-CE) is a MAC layer communication structure that may be used for control command exchange between wireless nodes. For example, the BS 110a may transmit a MAC-CE to a UE 120a to put the UE 120a into a discontinuous reception (DRX) mode to reduce the UE's power consumption.) Therefore, it would have been obvious to one of ordinary skill in the art at the time the invention was made to modify the invention of Cheng et al. as taught by Paladugu et al. for purpose of using for control command exchange between wireless nodes. For claim 9, the combination of Chang et al., Park et al. and Paladugu et al. disclose the method according to claim 8. Park et al. disclose wherein in a case that the receive end receives a new data packet, the first timer is started or restarted (at least [0183]. The inactivity timer is a common DRX timer, and upon receiving a new TB from the TX UE, the RX UE may start the inactivity timer and monitor whether there is additional SL data transmitted by the TX UE.) For claim 19, the claim has features similar to claim 7-8. Therefore, the claim is also rejected for the same reason in claims 7-8. Claims 10 and 20 are rejected under 35 U.S.C. 103 as being unpatentable over Cheng et al. (U.S. 20230156854) in view of Sun et al. (U.S. 20230217536). For claim 10, Cheng et al. do not disclose the method according to claim 1, wherein in a case that the parameter configuration information of the second DRX is indicated by one QoS configuration, the parameter configuration information of the second DRX is determined by a packet delay budget (PDB); or in a case that the parameter configuration information of the second DRX is indicated by at least two QoS configurations, the parameter configuration information of the second DRX is determined by a preset PDB in the at least two QoS configurations; wherein the preset PDB is a smallest PDB in the at least two QoS configurations. In the same field of endeavor, Sun et al. disclose the method according to claim 1, wherein in a case that the parameter configuration information of the second DRX is indicated by one QoS configuration, the parameter configuration information of the second DRX is determined by a packet delay budget (PDB); or in a case that the parameter configuration information of the second DRX is indicated by at least two QoS configurations, the parameter configuration information of the second DRX is determined by a preset PDB in the at least two QoS configurations; wherein the preset PDB is a smallest PDB in the at least two QoS configurations (at least [0043]. The UE 204 can have multiple different configurations, which can be provided from the base station 201 by RRC signaling. If multiple DRX cycles are permitted and configured for the UE 204, the UE 204 can choose which DRX cycle to follow. The UE 204 can choose a DRX cycle based on the type of SL service provided to the UE 204. For example, when the UE 204 is engaged in SL communication for V2X services, the UE 204 can choose a shorter DRX cycle due to the potential high speed of vehicles. The UE 204 can also choose the DRX cycle based on quality of service (QoS) profiles including priority, packet delay budget of the SL communications, or other QoS factors.) Therefore, it would have been obvious to one of ordinary skill in the art at the time the invention was made to modify the invention of Cheng et al. as taught by Sun et al. for purpose of allowing a UE to choose a multiple different DRX configurations. For claim 20, the claim has features similar to claim 10. Therefore, the claim is also rejected for the same reason in claim 10. Allowable Subject Matter Claims 2-5 and 12-17are 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 DAI PHUONG whose telephone number is 571-272-7896. The examiner can normally be reached on Monday-Friday, 8am-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, Kathy Wang-Hurst can be reached on 571-270-5371. The fax phone number for the organization where this application or proceeding is assigned is 571-273-7687. 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). /DAI PHUONG/Primary Examiner, Art Unit 2644
Read full office action

Prosecution Timeline

Jan 04, 2024
Application Filed
Jan 23, 2026
Non-Final Rejection — §102, §103 (current)

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Prosecution Projections

1-2
Expected OA Rounds
76%
Grant Probability
92%
With Interview (+16.0%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 809 resolved cases by this examiner. Grant probability derived from career allow rate.

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