Prosecution Insights
Last updated: July 17, 2026
Application No. 18/524,344

COMMUNICATION METHOD FOR A WIRELESS AD HOC NETWORK, AND WIRELESS AD HOC NETWORK

Final Rejection §103
Filed
Nov 30, 2023
Priority
Dec 30, 2022 — EU 22 217 387.4
Examiner
OLUBODUN, AYODELE LAWRENCE
Art Unit
2472
Tech Center
2400 — Computer Networks
Assignee
Rohde & Schwarz GmbH & Co. KG
OA Round
2 (Final)
89%
Grant Probability
Favorable
3-4
OA Rounds
3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 89% — above average
89%
Career Allowance Rate
24 granted / 27 resolved
+30.9% vs TC avg
Strong +18% interview lift
Without
With
+17.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
19 currently pending
Career history
54
Total Applications
across all art units

Statute-Specific Performance

§103
93.5%
+53.5% vs TC avg
§102
5.8%
-34.2% vs TC avg
§112
0.7%
-39.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 27 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 . Response to Amendment This office action is in reply to Applicant’s Response dated 05/05/2026. Claims 1 and 9 were amended. Claim 10 is newly added. As a result of amendments to the claim, objection to claim 1 no longer applies. Response to Arguments The applicant argument that “Chen does not define when the physical RX/TX circuitry is active in specific time slots, nor does it tie deactivation to prior use of particular slots. Chen's activation/deactivation concerns routing participation rather than physical-layer slot scheduling” is persuasive. To teach this and the amendment two new references are now used in combination with existing Brown to teach the independent claims. 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. In 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. 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. Claims 1, 4 - 10 are rejected under 35 U.S.C. 103 as being unpatentable over Brown et al, (U.S. PGPub 2013/0315078), Brown hereinafter, in view of Kobayashi (US 4574378 A), Kobayashi hereinafter and further in view of Uggmark et al. (US 6564073 B1), Uggmark hereinafter. Regarding Claims 1 and 9, Brown teaches a communication method for a wireless ad hoc network, wherein the wireless ad hoc network comprises a plurality of nodes, wherein the wireless ad hoc network is a time-slotted barrage relay network, wherein each node comprises a receiver RX circuit being configured to receive data packages based on time division multiple access (TDMA) frames, wherein each node comprises a transmitter TX circuit being configured to transmit data packages based on TDMA frames, (fig. 1 and paragraphs 0013 to 0015 discloses ad hoc network of plurality of nodes. [0013] … applicable to time-slotted barrage relay networks. In particular, time is divided into frames, which are further divided into M slots per frame (FIG. 1 employs 3 slots per frame labeled “A”, “B”, and “C”). ... -[0014] In one embodiment, for example, the central node 101 transmits a packet on slot A of the first TDMA frame. ... ) Yet, Brown does not expressly teach wherein the TDMA frames comprise time slots that are unambiguously assigned to one of the nodes, respectively, such that no time slot is assigned to more than one node, the communication method comprising: However, in the analogous art, Kobayashi explicitly discloses wherein the TDMA frames comprise time slots that are unambiguously assigned to one of the nodes, respectively, such that no time slot is assigned to more than one node, the communication method comprising: (column 1 line 11 to 18 - TDMA (time division multiple access) and ALOHA are well-known as multiple access systems using a shared communication medium such as a satellite shown in FIG. 1. The TDMA scheme divides a channel into time slots at intervals comprising one-packet transmission time. When the number of users is N (positive integer), N slots are given as one frame. Each slot of the frame is permanently assigned to each user. ... ) Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to combine Brown's Method and System for On-Demand Adaptation of Packet Time-To-Live In Time-Slotted Barrage Relay Networks to include Kobayashi’s permanent assignment of slot to each user for ease of implementation. Yet, Brown in view of Kobayashi does not expressly teach transmitting, by at least one node of the plurality of nodes, at least one data package in a subset of time slots of a TDMA frame, respectively, wherein the subset of time slots is assigned to a subset of nodes of the plurality of nodes; and deactivating, by the at least one node, the RX circuit and/or the TX circuit of the at least one node during the subset of time slots of subsequent TDMA frames. However, in the analogous art, Uggmark explicitly discloses transmitting, by at least one node of the plurality of nodes, at least one data package in a subset of time slots of a TDMA frame, respectively, wherein the subset of time slots is assigned to a subset of nodes of the plurality of nodes; and (Column 5 line 1 to 19 - As already mentioned, a TDMA telephone uses a number of control pulses or strobes, which are used to switch on and off i.a. various radio circuits. The strobes are all completely controlled by the CPU 242 in such a way, that the telephone is capable of sending and receiving in the correct TDMA timeslot. For instance, the TX strobe is activated at least once for each TDMA frame in order to switch on transmitter 212 and the components comprised therein, such as the power amplifier (PA). The transmitter is activated, by the TX strobe, just before the correct timeslot and is then deactivated immediately after this timeslot, by switching the TX strobe from e.g. a high logical value to a low logical value. In normal talk mode, i.e. for a voice call, the TX strobe is generated exactly once in every TDMA frame by the CPU 242 and the timing generator 246, for as long as the ongoing telephone call lasts. In case of a data call (DTX), on the other hand, the number of TX strobes may be two or more (multislot) in each TDMA frame.) deactivating, by the at least one node, the RX circuit and/or the TX circuit of the at least one node during the subset of time slots of subsequent TDMA frames (Column 5 line 1 to 19 - As already mentioned, a TDMA telephone uses a number of control pulses or strobes, which are used to switch on and off i.a. various radio circuits. The strobes are all completely controlled by the CPU 242 in such a way, that the telephone is capable of sending and receiving in the correct TDMA timeslot. For instance, the TX strobe is activated at least once for each TDMA frame in order to switch on transmitter 212 and the components comprised therein, such as the power amplifier (PA). The transmitter is activated, by the TX strobe, just before the correct timeslot and is then deactivated immediately after this timeslot, by switching the TX strobe from e.g. a high logical value to a low logical value. In normal talk mode, i.e. for a voice call, the TX strobe is generated exactly once in every TDMA frame by the CPU 242 and the timing generator 246, for as long as the ongoing telephone call lasts. In case of a data call (DTX), on the other hand, the number of TX strobes may be two or more (multislot) in each TDMA frame.) Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to combine Brown's Method and System for On-Demand Adaptation of Packet Time-To-Live In Time-Slotted Barrage Relay Networks to include Uggmark’s activation and deactivation on time slot to achieve the use of the slots for both transmit and receive. Regarding Claim 4, Brown in view of Kobayashi and further in view of Uggmark teaches claim 1. Brown further teaches wherein the subset of nodes comprises the at least one node and/or nodes being arranged upstream of the at least one node (fig. 1 discloses Node 126 and Node 134 to be upstream of Node 115, other examples are also present in the diagram) Regarding Claim 5, Brown in view of Kobayashi and further in view of Uggmark teaches claim 1. Brown further teaches wherein management data is provided and processed in the time slots assigned to the subset of nodes, respectively, wherein the management data comprises configuration information and/or location information associated with the respective node (paragraph 0020 discloses use of Hop Count field and Time to Live TTL ( a management data) incorporated into the data packet in the time slots -[0020] … a time-to-live (TTL) field and a hop count (HC) field. The TTL field is unchanged by relaying nodes while the HC field is set to 1 by the source of a packet and incremented upon relay. … ) Regarding Claim 6, Brown in view of Kobayashi and further in view of Uggmark teaches claim 1. Brown further teaches wherein the at least one node transmits data packages received from different other nodes during a single TDMA frame in the subsequent TDMA frame (paragraph 0014 - In one embodiment, for example, the central node 101 transmits a packet on slot A of the first TDMA frame. All nodes that successfully receive this packet are, by definition, one hop away from the source. These nodes are labeled 111, 112, . . . , 117 in FIG. 1. These nodes transmit the same packet on slot B, thus relaying to nodes that are 2 hops away from the source ( nodes 121, 122, . . . , 129), which in turn transmit the same packet on slot C. Nodes that are 3 hops away from the source ( nodes 131, 132, . . . , 137) relay the packet on slot A of the second TDMA frame. In this way, packets transmit outward from the source via a decode-and-forward approach.) Regarding Claim 7, Brown in view of Kobayashi and further in view of Uggmark teaches claim 1. Brown further teaches wherein the TDMA frames comprise data transmission time slots for transmitting payload data, respectively (paragraph 0013 - … the present invention is especially applicable to time-slotted barrage relay networks. In particular, time is divided into frames, which are further divided into M slots per frame (FIG. 1 employs 3 slots per frame labeled “A”, “B”, and “C”). The value of M is denoted the “spatial pipelining factor” in the follow paragraphs. The data that is transmitted in a given time slot is denoted a “packet.” Two packets that are transmitted by two different nodes are said to be identical if all data—including all protocol header information—contained in the respective packets is identical. ) Regarding Claim 8, Brown in view of Kobayashi and further in view of Uggmark teaches claim 1. Brown further teaches wherein the payload data corresponds to image data, video data, audio data, and/or language data (paragraph 0011 - … many important MANET applications (e.g., voice and video transmission in military and first responder networks). … ). Regarding Claim 10, Brown teaches a communication method for a wireless ad hoc network, wherein the wireless ad hoc network comprises a plurality of nodes, wherein the wireless ad hoc network is a time-slotted barrage relay network, wherein each node comprises a receiver (RX) circuit being configured to receive data packages based on time division multiple access (TDMA) frames, wherein each node comprises a transmitter (TX) circuit being configured to transmit data packages based on TDMA frames, (fig. 1 and paragraphs 0013 to 0015 discloses ad hoc network of plurality of nodes. [0013] … applicable to time-slotted barrage relay networks. In particular, time is divided into frames, which are further divided into M slots per frame (FIG. 1 employs 3 slots per frame labeled “A”, “B”, and “C”). ... -[0014] In one embodiment, for example, the central node 101 transmits a packet on slot A of the first TDMA frame. ... ) Yet, Brown does not expressly teach wherein the TDMA frames each comprise time slots that are unambiguously assigned to one of the nodes, respectively, such that no time slot is assigned to more than one node, the communication method comprising: However, in the analogous art, Kobayashi explicitly discloses wherein the TDMA frames each comprise time slots that are unambiguously assigned to one of the nodes, respectively, such that no time slot is assigned to more than one node, the communication method comprising: (column 1 line 11 to 18 - TDMA (time division multiple access) and ALOHA are well-known as multiple access systems using a shared communication medium such as a satellite shown in FIG. 1. The TDMA scheme divides a channel into time slots at intervals comprising one-packet transmission time. When the number of users is N (positive integer), N slots are given as one frame. Each slot of the frame is permanently assigned to each user. ... ) Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to combine Brown's Method and System for On-Demand Adaptation of Packet Time-To-Live In Time-Slotted Barrage Relay Networks to include Kobayashi’s permanent assignment of slot to each user for ease of implementation. Yet, Brown in view of Kobayashi does not expressly teach transmitting, by at least one node of the plurality of nodes, at least one data package in a subset of time slots of a TDMA frame, respectively, wherein the subset of time slots is assigned to a subset of nodes of the plurality of nodes, wherein the plurality of nodes exchange signals periodically in cycles having a predetermined number of TDMA frames, and wherein in the course of each cycle, the at least one node receives and/or transmits the at least one data package during each time slot only once; and deactivating, by the at least one node, the RX circuit and/or the TX circuit of the at least one node during the subset of time slots of subsequent TDMA frames within the same cycle. However, in the analogous art, Uggmark explicitly discloses transmitting, by at least one node of the plurality of nodes, at least one data package in a subset of time slots of a TDMA frame, respectively, wherein the subset of time slots is assigned to a subset of nodes of the plurality of nodes, wherein the plurality of nodes exchange signals periodically in cycles having a predetermined number of TDMA frames, and wherein in the course of each cycle, the at least one node receives and/or transmits the at least one data package during each time slot only once; (Column 5 line 1 to 19 - As already mentioned, a TDMA telephone uses a number of control pulses or strobes, which are used to switch on and off i.a. various radio circuits. The strobes are all completely controlled by the CPU 242 in such a way, that the telephone is capable of sending and receiving in the correct TDMA timeslot. For instance, the TX strobe is activated at least once for each TDMA frame in order to switch on transmitter 212 and the components comprised therein, such as the power amplifier (PA). The transmitter is activated, by the TX strobe, just before the correct timeslot and is then deactivated immediately after this timeslot, by switching the TX strobe from e.g. a high logical value to a low logical value. In normal talk mode, i.e. for a voice call, the TX strobe is generated exactly once in every TDMA frame by the CPU 242 and the timing generator 246, for as long as the ongoing telephone call lasts. In case of a data call (DTX), on the other hand, the number of TX strobes may be two or more (multislot) in each TDMA frame.) And deactivating, by the at least one node, the RX circuit and/or the TX circuit of the at least one node during the subset of time slots of subsequent TDMA frames within the same cycle (Column 5 line 1 to 19 - As already mentioned, a TDMA telephone uses a number of control pulses or strobes, which are used to switch on and off i.a. various radio circuits. The strobes are all completely controlled by the CPU 242 in such a way, that the telephone is capable of sending and receiving in the correct TDMA timeslot. For instance, the TX strobe is activated at least once for each TDMA frame in order to switch on transmitter 212 and the components comprised therein, such as the power amplifier (PA). The transmitter is activated, by the TX strobe, just before the correct timeslot and is then deactivated immediately after this timeslot, by switching the TX strobe from e.g. a high logical value to a low logical value. In normal talk mode, i.e. for a voice call, the TX strobe is generated exactly once in every TDMA frame by the CPU 242 and the timing generator 246, for as long as the ongoing telephone call lasts. In case of a data call (DTX), on the other hand, the number of TX strobes may be two or more (multislot) in each TDMA frame.) Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to combine Brown's Method and System for On-Demand Adaptation of Packet Time-To-Live In Time-Slotted Barrage Relay Networks to include Uggmark’s activation and deactivation on time slot to achieve the use of the slots for both transmit and receive. Claim 2 is rejected under 35 U.S.C. 103 as being unpatentable over Brown et al, (U.S. PGPub 2013/0315078), Brown hereinafter, in view of Kobayashi (US 4574378 A), Kobayashi hereinafter and further in view of Uggmark et al. (US 6564073 B1), Uggmark hereinafter and further in view of Sengodan et al. (U.S. PGPub 2002/0054596), Sengodan hereinafter. Regarding Claim 2, Brown in view of Kobayashi and further in view of Uggmark teaches claim 1. Yet, Brown in view of Kobayashi and further in view of Uggmark does not expressly teach wherein management data is provided and processed in the time slots assigned to the subset of nodes, respectively, wherein the management data comprises a remaining hop count portion, wherein the remaining hop count portion comprises information on a remaining hop count for the management data associated with the respective node, and wherein a value of the remaining hop count is decreased at each hop by the respective node. However, in the analogous art, Sengodan explicitly discloses wherein management data is provided and processed in the time slots assigned to the subset of nodes, respectively, wherein the management data comprises a remaining hop count portion, wherein the remaining hop count portion comprises information on a remaining hop count for the management data associated with the respective node, and wherein a value of the remaining hop count is decreased at each hop by the respective node (paragraph 0071 - ... . The Hop Count 410 is used to determine whether the message propagates any further or not. Every node of the multicast tree that receives the request message decrements the Hop Count by one, and if the resulting value is not zero, it forwards it down the multicast tree.) Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to combine Brown's Method and System for On-Demand Adaptation of Packet Time-To-Live In Time-Slotted Barrage Relay Networks to include Sengodan's hop countdown to set node limit for sent packets. 4. Claim 3 is rejected under 35 U.S.C. 103 as being unpatentable over Brown et al, (U.S. PGPub 2013/0315078), Brown hereinafter, in view of Kobayashi (US 4574378 A), Kobayashi hereinafter and further in view of Uggmark et al. (US 6564073 B1), Uggmark hereinafter and further in view of Zhang et al. (U.S. PGPub 2019/0090275), Zhang hereinafter. Regarding Claim 3, Brown in view of Kobayashi and further in view of Uggmark teaches claim 1. Yet, Brown in view of Kobayashi and further in view of Uggmark does not expressly teach wherein the RX circuit and/or the TX circuit are reactivated for the subset of time slots after a number of TDMA frames corresponding to the remaining hop count have elapsed. However, in the analogous art, Zhang explicitly discloses wherein the RX circuit and/or the TX circuit are reactivated for the subset of time slots after a number of TDMA frames corresponding to the remaining hop count have elapsed (paragraph 0026 - a time slot determination module configured to determine a set of time slots amongst the plurality of sets of time slots for the node to transmit data packets, the set of time slots being determined based on a hop count associated with the node.) Therefore, it would have been obvious to one of ordinary skill in the art before the effective filling date of the claimed invention to combine Brown's Method and System for On-Demand Adaptation of Packet Time-To-Live In Time-Slotted Barrage Relay Networks to include Zhangs's determination of timeslots set based hop countdown to set node limit for sent packets. 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). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LAWRENCE AYODELE OLUBODUN whose telephone number is (571)270-5462. The examiner can normally be reached 8.00am - 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, Nicholas A. Jensen can be reached at 571-270-5443. 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. /A.L.O./Examiner, Art Unit 2472 /NICHOLAS A JENSEN/Supervisory Patent Examiner, Art Unit 2472
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Prosecution Timeline

Nov 30, 2023
Application Filed
Feb 06, 2026
Non-Final Rejection mailed — §103
May 05, 2026
Response Filed
May 29, 2026
Final Rejection mailed — §103 (current)

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Prosecution Projections

3-4
Expected OA Rounds
89%
Grant Probability
99%
With Interview (+17.6%)
2y 10m (~3m remaining)
Median Time to Grant
Moderate
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