Prosecution Insights
Last updated: July 17, 2026
Application No. 18/255,493

METHOD AND DEVICE FOR COMMUNICATION ON MULTIPLE LINKS

Non-Final OA §103
Filed
Jun 01, 2023
Priority
Dec 03, 2020 — nonprovisional of PCTCN2020133703
Examiner
TANG, KIET G
Art Unit
2469
Tech Center
2400 — Computer Networks
Assignee
Beijing Xiaomi Mobile Software Co., Ltd.
OA Round
2 (Non-Final)
90%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allowance Rate
729 granted / 808 resolved
+32.2% vs TC avg
Moderate +12% lift
Without
With
+12.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
16 currently pending
Career history
837
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
91.6%
+51.6% vs TC avg
§102
4.4%
-35.6% vs TC avg
§112
1.6%
-38.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 808 resolved cases

Office Action

§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 . Claims 1-5, 7, 9, 11-12, 14-16, 20, 22, 24-25, and 29-32 are pending. Claims 1, 9, 11, 12, 14, 22, 24, 25, and 29 have been amended. Claims 6, 8, 10, 13, 17-19, 21, 23, and 26-28 have been cancelled. Response to Arguments Applicant’s arguments filed on 01/02/2026 have been considered but they are moot in view of the new ground(s) of rejection. 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. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 1-3, 5, 14-16, and 29-32 are rejected under 35 U.S.C. 103 as being unpatentable over Kim et al. (Pub. No.: US 20200154476 A1), hereinafter Kim , in view of Fang et al. (Pub. No.: US 20120236822 A1), hereinafter Fang, and further in view of Liu et al. (Pub. No.: US 20160066257 A1), hereinafter Liu. With respect to claim 1, Kim teaches A communication method, performed by an access point, the method comprising: determining a first message frame, wherein the first message frame comprises first information associated with spatial reuse of multiple links supported by the access point ([0220], AP (AP 1) transmits a trigger frame that requests UL MU transmission to a plurality of STAs (STA 1 and 2). the trigger frame include trigger information (or configuration information) for supporting the UL MU transmission of a STA and SR indication information (or one or more first SR support parameter values) for indicating the SR of OBSS AP/STA (AP 2/STA 3) and generating SR support information (or one or more second SR support parameter values)), and the first information is used for spatial reuse in data interaction between the access point and a station ([0243], The SR indication information may be generated (or configured) by taking into consideration the worst case in which a link that belongs to links between an AP and STAs that will perform UL transmission and that has the worst link quality or is most sensitive to interference); and sending the first message frame ([0220], AP (AP 1) transmits a trigger frame that requests UL MU transmission to a plurality of STAs (STA 1 and 2). Kim does not explicitly teach receiving a third message frame, wherein the third message frame comprises third information for indicating a spatial reuse capability of the station. However, Fang teaches receiving a third message frame, wherein the third message frame comprises third information for indicating capability of the station ([0008], receiving, a third message from a mobile station, indicating that the mobile station supports the advanced RC capabilities). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of Fang, receiving a third message frame, wherein the third message frame comprises third information for indicating capability of the station, into the teachings of Kim, in order to allow base stations having different protocol versions interoperate with mobile stations (Fang, [0007]). The combination of Kim and Fang does not explicitly teach a spatial reuse capability of the station. However, Liu teaches a spatial reuse capability of the station ([0027], a spatial reuse capability of the STA_12). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of Liu, a spatial reuse capability of the station, into the teachings of Kim and Fang, in order to o enhance the average throughput per station in a wireless network by optimizing spatial reuse (Liu, [0010]). With respect to claim 2, the combination of Kim, Fang, and Liu teaches the method of claim 1. Kim teaches wherein the first information comprises a spatial reuse parameter set element ([0220]) With respect to claim 3, the combination of Kim, Fang, and Liu teaches the method of claim 2. Kim teaches wherein the first message frame comprises wherein the first message frame comprises a Multi-Link element, and the spatial reuse parameter set element is comprised in the Multi-Link element ([0220]). With respect to claim 5, the combination of Kim, Fang, and Liu teaches the method of claim 2. Kim teaches wherein the spatial reuse parameter set element is set to be identical for each of the multiple links ([0223]). With respect to claim 14, Kim teaches A communication method, performed by a station, the method comprising: receiving a first message frame, wherein the first message frame comprises first information associated with spatial reuse of multiple links supported by an access point ([0220], AP (AP 1) transmits a trigger frame that requests UL MU transmission to a plurality of STAs (STA 1 and 2). the trigger frame include trigger information (or configuration information) for supporting the UL MU transmission of a STA and SR indication information (or one or more first SR support parameter values) for indicating the SR of OBSS AP/STA (AP 2/STA 3) and generating SR support information (or one or more second SR support parameter values)), and the first information is used for spatial reuse in data interaction between the access point and the station ([0243], The SR indication information may be generated (or configured) by taking into consideration the worst case in which a link that belongs to links between an AP and STAs that will perform UL transmission and that has the worst link quality or is most sensitive to interference); performing a communication operation based on the first information ([0222], the plurality of STAs (STA 1 and 2) send an UL MU PPDU (e.g., an HE trigger-based PPDU, an UL MU frame), generated based on the received trigger frame, to the AP (AP 1) (S920)). Kim does not explicitly teach sending a third message frame, wherein the third message frame comprises third information for indicating a spatial reuse capability of the station. However, Fang teaches sending a third message frame, wherein the third message frame comprises third information for indicating capability of the station ([0008], receiving, a third message from a mobile station, indicating that the mobile station supports the advanced RC capabilities). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of Fang, sending a third message frame, wherein the third message frame comprises third information for indicating capability of the station, into the teachings of Kim, in order to allow base stations having different protocol versions interoperate with mobile stations (Fang, [0007]). The combination of Kim and Fang does not explicitly teach a spatial reuse capability of the station. However, Liu teaches a spatial reuse capability of the station ([0027], a spatial reuse capability of the STA_12). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of Liu, a spatial reuse capability of the station, into the teachings of Kim and Fang, in order to o enhance the average throughput per station in a wireless network by optimizing spatial reuse (Liu, [0010]). With respect to claim 15, this claim recites the method of claim 2, and it is rejected for at least the same reasons. With respect to claim 16, this claim recites the method of claim 3, and it is rejected for at least the same reasons. With respect to claim 29, Kim teaches An access point, comprising: a processor ([0271], processor); and a memory storing a computer program executable by the processor ([0271], memory); wherein the processor is configured to: determine a first message frame, wherein the first message frame comprises first information associated with spatial reuse of multiple links supported by the access point ([0220], AP (AP 1) transmits a trigger frame that requests UL MU transmission to a plurality of STAs (STA 1 and 2). the trigger frame include trigger information (or configuration information) for supporting the UL MU transmission of a STA and SR indication information (or one or more first SR support parameter values) for indicating the SR of OBSS AP/STA (AP 2/STA 3) and generating SR support information (or one or more second SR support parameter values)), and the first information is used for spatial reuse in data interaction between the access point and a station ([0243], The SR indication information may be generated (or configured) by taking into consideration the worst case in which a link that belongs to links between an AP and STAs that will perform UL transmission and that has the worst link quality or is most sensitive to interference); and send the first message frame ([0220], AP (AP 1) transmits a trigger frame that requests UL MU transmission to a plurality of STAs (STA 1 and 2). Kim does not explicitly teach receiving a third message frame, wherein the third message frame comprises third information for indicating a spatial reuse capability of the station. However, Fang teaches receiving a third message frame, wherein the third message frame comprises third information for indicating capability of the station ([0008], receiving, a third message from a mobile station, indicating that the mobile station supports the advanced RC capabilities). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of Fang, receiving a third message frame, wherein the third message frame comprises third information for indicating capability of the station, into the teachings of Kim, in order to allow base stations having different protocol versions interoperate with mobile stations (Fang, [0007]). The combination of Kim and Fang does not explicitly teach a spatial reuse capability of the station. However, Liu teaches a spatial reuse capability of the station ([0027], a spatial reuse capability of the STA_12). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of Liu, a spatial reuse capability of the station, into the teachings of Kim and Fang, in order to o enhance the average throughput per station in a wireless network by optimizing spatial reuse (Liu, [0010]). With respect to claim 30, this claim recites the method of claim 1, and it is rejected for at least the same reasons. With respect to claim 31, this claim recites the method of claim 14, and it is rejected for at least the same reasons. With respect to claim 32, this claim recites the method of claim 14, and it is rejected for at least the same reasons. Claim 4 is rejected under 35 U.S.C. 103 as being unpatentable over Kim, in view of Fang, in view of Liu, and further in view of KNECKT et al. (Pub. No.: US 20210076437 A1), hereinafter KNECKT. With respect to claim 4, the combination of Kim, Fang, and Liu teaches the method of claim 2. Kim teaches the first information as set forth above. The combination of Kim, Fang, and Liu does not explicitly teach link identifications, and the link identifications correspond to the multiple links respectively. However, KNECKT teaches link identifications, and the link identifications correspond to the multiple links respectively (fig. 7, [0066]). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of KNECKT, link identifications, and the link identifications correspond to the multiple links respectively, into the teachings of Kim, Fang, and Liu, in order to support multilink devices (MLDs) that can operate concurrently in more than one link such as extremely high throughput (EHT) access points (APs) and EHT stations (STA) (KNECKT, abstract). Claims 7 and 20 are rejected under 35 U.S.C. 103 as being unpatentable over Kim, in view of Fang, in view of Liu, and further in view of VERMA et al. (Pub. No.: US 20170325178 A1), hereinafter VERMA. With respect to claim 7, the combination of Kim, Fang, and Liu teaches the method of claim 3. Kim teaches wherein the Multi-Link element as set forth above. The combination of Kim, Fang, and Liu does not explicitly teach a field of common information, and the spatial reuse parameter set element is comprised in the field of common information. However, VERMA teaches a field of common information (fig. 3A, [0053]), and the spatial reuse parameter set element is comprised in the field of common information (fig. 3A, [0054]). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of VERMA, a field of common information, and the spatial reuse parameter set element is comprised in the field of common information, into the teachings of Kim, Fang, and Liu, in order to utilize a single per-user information field of the trigger to signal a plurality of random access resource units that may be allocated to the one or more STAs in the network (STA) (VERMA, [0006]). With respect to claim 20, this claim recites the method of claim 7, and it is rejected for at least the same reasons. Claims 9, 11-12, 22, and 24-25 are rejected under 35 U.S.C. 103 as being unpatentable over Kim, in view of Fang, in view of Liu, and further in view of ZHOU et al. (Pub. No.: US 20170325254 A1), hereinafter ZHOU. With respect to claim 9, the combination of Kim, Fang, and Liu teaches the method of claim 1. The combination of Kim, Fang, and Liu does not explicitly teach determining and sending a second message frame, wherein the second message frame comprises second information for indicating a spatial reuse capability of the access point. However, ZHOU teaches determining and sending a second message frame, wherein the second message frame comprises second information for indicating a spatial reuse capability of the access point ([0068]). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of ZHOU, determining and sending a second message frame, wherein the second message frame comprises second information for indicating a spatial reuse capability of the access point, into the teachings of Kim, Fang, and Liu, in order to improve throughput and latency of communications by the STA with other nodes (ZHOU, [0048]). With respect to claim 11, the combination of Kim, Fang, and Liu teaches the method of claim 1. The combination of Kim, Fang, and Liu does not explicitly teach wherein any one of the second information and the third information comprises at least one of: a first indicator for indicating whether a parameterized spatial reuse responder is supported. However, ZHOU teaches wherein any one of the second information and the third information comprises at least one of: a first indicator for indicating whether a parameterized spatial reuse responder is supported ([0068]). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of ZHOU, wherein any one of the second information and the third information comprises at least one of: a first indicator for indicating whether a parameterized spatial reuse responder is supported, into the teachings of Kim, Fang, and Liu, in order to improve throughput and latency of communications by the STA with other nodes (ZHOU, [0048]). With respect to claim 12, the combination of Kim, Fang, Liu, and ZHOU teaches the method of claim 11. Kim teaches a Multi-Link element, and at least one of the first indicator or the second indicator is comprised in the Multi-Link element ([0220]). Kim does not explicitly teach the second message frame. However, ZHOU teaches the second message frame ([0068]). Therefore, it would have been obvious to one of the ordinary skills in the art before the effective filing date of the claimed invention to combine the teachings of ZHOU, the second message frame, into the teachings of Kim, Fang, Liu, in order to improve throughput and latency of communications by the STA with other nodes (ZHOU, [0048]). With respect to claim 22, this claim recites the method of claim 9, and it is rejected for at least the same reasons. With respect to claim 24, this claim recites the method of claim 11, and it is rejected for at least the same reasons. With respect to claim 25, this claim recites the method of claim 12, and it is rejected for at least the same reasons. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). Any inquiry concerning this communication or earlier communications from the examiner should be directed to KIET TANG whose telephone number is (571)270-7193. The examiner can normally be reached on M-F 8:00-5:00. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, IAN MOORE can be reached on (571) 272-3085. 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. /KIET TANG/ Primary Examiner, Art Unit 2469
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Prosecution Timeline

Jun 01, 2023
Application Filed
Oct 02, 2025
Non-Final Rejection mailed — §103
Jan 02, 2026
Response Filed
May 01, 2026
Final Rejection mailed — §103
Jun 26, 2026
Response after Non-Final Action

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Prosecution Projections

2-3
Expected OA Rounds
90%
Grant Probability
99%
With Interview (+12.2%)
2y 6m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 808 resolved cases by this examiner. Grant probability derived from career allowance rate.

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