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 Objections
Claims 31-33, 37, 43, 44 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.
Claims 25-37 objected to because of the following informalities: the claim makes a claim to an apparatus but it is unclear to the examiner on whether or not the apparatus is an base station or an user equipment the applicant specification doesn’t state the apparatus is defined as. 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) 25, 27, 28, 34,38, 40, 42 is/are rejected under 35 U.S.C. 103 as being unpatentable over RUFFINI et al. (U.S. Pub No. 20200314782 A1) in view of DAI et al. (U.S. Pub No. 20230261838 A1).
25, Ruffini teaches an apparatus comprising: a memory; and processing circuitry configured to cause the apparatus to [par 0066, The processing circuit 12 also includes a memory 24. The memory 24, in some embodiments, stores one or more computer programs 26 and, optionally, configuration data 28. The memory 24 provides non-transitory storage for the computer program 26 and it may comprise one or more types of computer-readable media, such as disk storage, solid-state memory storage]:
request synchronization reference source information from a user equipment [par 0134, The target node 902 can include information such as the Stratum Number (a representation of how many over the air synchronization hops the target is from a reliable synchronization source), synchronization status (synchronous/asynchronous), location information for the receiver, resources in which the synchronization reference signal (RS) can be detected, and/or eventual signals from UEs served by the source eNB. This information may be detected by the target node 902 that may, in this way, get some indirect information about the source node 906],
determine whether to conduct an offset compensation based on the synchronization reference source information [par 0102, The information may include synchronization reference signal details, such as PRS or, more generally, applicable synchronization reference signals (periodicity, pattern, muting, consecutive PRS subframes, and/or bandwidth). The information may include offset estimates for propagation delay offset compensation (line-of-sight (LOS) based for geo-position based) including an error estimate. This could be based on a knowledge of geolocation of the target node 902 (and source node 906)].
and in response to a determination to conduct the offset compensation, obtain a first propagation delay associated with the apparatus[par 0092, The synchronization source information may also include: compensation information to compensate for propagation delays; information for main synchronization sources; information for a list of alternative or backup synchronization sources available to the synchronization source node; beam identifiers for beams supported by the synchronization source node; beam quality information; stratum level; and/or a synchronization signal made available by a base station of a macro cell],
Ruffini fail to show determine a reference time based on the first propagation delay, and forward the reference time to the user equipment.
In an analogous art DAI show determine a reference time based on the first propagation delay, and forward the reference time to the user equipment [par 0047, Accordingly, Global Navigation Satellite System (GNSS) signals (or other real-time satellite information signals) may provide information to facilitate time and/or frequency synchronization of devices, including NR devices and in particular IoT devices, by providing a reference time for correction by updating the position of the UE].
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini and DAI because information provided by the GNSS signal can be used for time delay and/or frequency offset for pre-compensation or post-compensation UE adjustments. [DAI, par 0053]
27, Ruffini and DAI describe the apparatus according to 25, wherein the synchronization reference source information identifies a type of a synchronization source and a priority of the synchronization source [Ruffini, par 0101, Step 950, the time synchronization information, also referred to as the synchronization source information, is provided by potential synchronization sources. Information received during Step 950 from a potential synchronization source node 906 may include an ID, basic information for a main synchronization source and a list of synchronization backup alternatives (namely a list of synchronization sources available to the source node 906, listed in order of priority). Beam IDs may be included if needed (for the source node 906), namely identifiers for the beams supported by the source node 906 in which synchronization signals may be transmitted].
28, Ruffini and DAI reveal the apparatus according to 26, wherein the processing circuitry is further configured to cause the apparatus to determine not to conduct the offset compensation in response to the synchronization reference source being a global navigation satellite system (GNSS) [Ruffini, par 0094, where a radio access node 902 of Radio Network #2 requires synchronization, but it is not able to detect any synchronization signal or trigger signaling to the cell for which a suitable synchronization signal was identified. The radio access node 902 may be a cell served by a dedicated operator that does not serve other overlapping cells. The cell has no GNSS visibility or connection to a PTP capable network, but needs some source of accurate and reliable synchronization].
34, Ruffini displays an apparatus comprising: a memory; and processing circuitry configured to cause the apparatus to[par 0066, The processing circuit 12 also includes a memory 24. The memory 24, in some embodiments, stores one or more computer programs 26 and, optionally, configuration data 28. The memory 24 provides non-transitory storage for the computer program 26 and it may comprise one or more types of computer-readable media, such as disk storage, solid-state memory storage]:
receive, from a first user equipment, a request for time information[par 0018, 0101, With regard to delivering location information, it was proposed that transmission point location information be added in the Time Synchronization Information IE in the form of location coordinates associated to a list of cells served by the corresponding transmission point. In Step 950, the time synchronization information, also referred to as the synchronization source information, is provided by potential synchronization sources. Information received during Step 950 from a potential synchronization source node 906 may include an ID, basic information for a main synchronization source and a list of synchronization backup alternatives (namely a list of synchronization sources available to the source node 906, listed in order of priority)].
obtain a first propagation delay associated with a second user equipment[par 0102, The information may include synchronization reference signal details, such as PRS or, more generally, applicable synchronization reference signals (periodicity, pattern, muting, consecutive PRS subframes, and/or bandwidth). The information may include offset estimates for propagation delay offset compensation (line-of-sight (LOS) based for geo-position based) including an error estimate. This could be based on a knowledge of geolocation of the target node 902 (and source node 906)],
determine a reference time based on the first propagation delay[par 0092, The synchronization source information may also include: compensation information to compensate for propagation delays; information for main synchronization sources; information for a list of alternative or backup synchronization sources available to the synchronization source node; beam identifiers for beams supported by the synchronization source node; beam quality information; stratum level; and/or a synchronization signal made available by a base station of a macro cell],
RUFFINI fail to show forward the reference time to the first user equipment. In an analogous art DAI show forward the reference time to the first user equipment[par 0047, Accordingly, Global Navigation Satellite System (GNSS) signals (or other real-time satellite information signals) may provide information to facilitate time and/or frequency synchronization of devices, including NR devices and in particular IoT devices, by providing a reference time for correction by updating the position of the UE].
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini and DAI because information provided by the GNSS signal can be used for time delay and/or frequency offset for pre-compensation or post-compensation UE adjustments. [DAI, par 0053]
38, Ruffini describe a method for synchronizing a reference time in a sidelink relay, the method comprising: requesting synchronization reference source information from a first user equipment[par 0134, The target node 902 can include information such as the Stratum Number (a representation of how many over the air synchronization hops the target is from a reliable synchronization source), synchronization status (synchronous/asynchronous), location information for the receiver, resources in which the synchronization reference signal (RS) can be detected, and/or eventual signals from UEs served by the source eNB. This information may be detected by the target node 902 that may, in this way, get some indirect information about the source node 906];
determining whether to conduct an offset compensation based on the synchronization reference source information[par 0102, The information may include synchronization reference signal details, such as PRS or, more generally, applicable synchronization reference signals (periodicity, pattern, muting, consecutive PRS subframes, and/or bandwidth). The information may include offset estimates for propagation delay offset compensation (line-of-sight (LOS) based for geo-position based) including an error estimate. This could be based on a knowledge of geolocation of the target node 902 (and source node 906)];
and in response to a determination to conduct the offset compensation, obtaining a first propagation delay of a second user equipment[par 0092, The synchronization source information may also include: compensation information to compensate for propagation delays; information for main synchronization sources; information for a list of alternative or backup synchronization sources available to the synchronization source node; beam identifiers for beams supported by the synchronization source node; beam quality information; stratum level; and/or a synchronization signal made available by a base station of a macro cell],
Ruffini fail to show determining a reference time based on the first propagation delay, and forwarding the reference time to the first user equipment.
In an analogous art DAI show determining a reference time based on the first propagation delay, and forwarding the reference time to the first user equipment par 0047, Accordingly, Global Navigation Satellite System (GNSS) signals (or other real-time satellite information signals) may provide information to facilitate time and/or frequency synchronization of devices, including NR devices and in particular IoT devices, by providing a reference time for correction by updating the position of the UE].
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini and DAI because information provided by the GNSS signal can be used for time delay and/or frequency offset for pre-compensation or post-compensation UE adjustments. [DAI, par 0053]
40, Ruffini and DAI determine the method according to claim 38, wherein the synchronization reference source information identifies a type of a synchronization source and a priority of the synchronization source[Ruffini, par 0101, Step 950, the time synchronization information, also referred to as the synchronization source information, is provided by potential synchronization sources. Information received during Step 950 from a potential synchronization source node 906 may include an ID, basic information for a main synchronization source and a list of synchronization backup alternatives (namely a list of synchronization sources available to the source node 906, listed in order of priority). Beam IDs may be included if needed (for the source node 906), namely identifiers for the beams supported by the source node 906 in which synchronization signals may be transmitted],
the method further comprising: determining not to conduct the offset compensation in response to the synchronization source being a global navigation satellite system (GNSS) [Ruffini, par 0094, where a radio access node 902 of Radio Network #2 requires synchronization, but it is not able to detect any synchronization signal or trigger signaling to the cell for which a suitable synchronization signal was identified. The radio access node 902 may be a cell served by a dedicated operator that does not serve other overlapping cells. The cell has no GNSS visibility or connection to a PTP capable network, but needs some source of accurate and reliable synchronization].
42, Ruffini and DAI describes the method according to claim 38, wherein the determining the reference time comprises: setting an offset compensation value equal to the first propagation delay[Ruffini, par 0074, The service information may also include offset estimates for propagation delay offset compensation or an error estimate with respect to a geolocation of the target network access node and/or the candidate synchronization source node. The service information may include any combination of these pieces of information];
Ruffini fail to show and determining the reference time based on the offset compensation value.
In an analogous art DAI show and determining the reference time based on the offset compensation value[par 0047, Accordingly, Global Navigation Satellite System (GNSS) signals (or other real-time satellite information signals) may provide information to facilitate time and/or frequency synchronization of devices, including NR devices and in particular IoT devices, by providing a reference time for correction by updating the position of the UE. Accordingly, the pre-compensation performed by the UE, including the time delay (or timing advance) and frequency offset may be updated based on the GNSS signal].
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini, Wu, and DAI because information provided by the GNSS signal can be used for time delay and/or frequency offset for pre-compensation or post-compensation UE adjustments. [DAI, par 0053]
Claim(s) 26, 30, 35, 36,39 is/are rejected under 35 U.S.C. 103 as being unpatentable over RUFFINI et al. (U.S. Pub No. 20200314782 A1) in view of DAI et al. (U.S. Pub No. 20230261838 A1) in further view of WU et al. (U.S. Pub No. 2024/0089763 A1).
26, Ruffini and DAI illustrate the apparatus according to 25, Ruffini and Dai fail to show wherein the processing circuitry is further configured to cause the apparatus to: obtain a second propagation delay between the user equipment and the apparatus; and obtain a third propagation delay between the user equipment and a synchronization reference source based on the synchronization reference source information
In an analogous art WU show wherein the processing circuitry is further configured to cause the apparatus to: obtain a second propagation delay between the user equipment and the apparatus [par 0115, For example, the receiving TRP of the second UE (e.g., the second TRP 908b) may receive the first signal 910 at the time T2. A second delay 924 (e.g., an interval between the time T1 and the time T2) represents a propagation delay for when the first UE 902 transmits the first signal 910 and the second UE 904 receives the first signal 910];
and obtain a third propagation delay between the user equipment and a synchronization reference source based on the synchronization reference source information [par 0126, As shown, the first delay 1012 representing the propagation delay of the second signal 1006 from the second UE 904 to the first UE 902 and the second delay 1014 representing the propagation delay of the first signal 1002 from the first UE 902 to the second UE 904 is the same in the examples of FIGS. 10A and 10B. Similarly, the third delay 1016 representing the propagation delay associated with the first reflected signal 1004 and the fourth delay 1018 representing the propagation delay associated with the second reflected signal 1008 is the same in the examples of FIGS. 10A and 10B]
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini, DAI, and WU because this provides adjusting the timing of the transmission of one signal while communicating in a bidirectional full-duplex mode may improve (e.g., reduce) clutter-interference at one UE. [Wu, par 0129]
30, Ruffini, DAI, and WU creates the apparatus according to 26, wherein the processing circuitry is further configured to cause the apparatus to: set an offset compensation value equal to the first propagation delay [Ruffini, par 0074, The service information may also include offset estimates for propagation delay offset compensation or an error estimate with respect to a geolocation of the target network access node and/or the candidate synchronization source node. The service information may include any combination of these pieces of information];
Ruffini and Wu fail to show and determine the reference time based on the offset compensation value.
In an analogous art DAI show and determine the reference time based on the offset compensation value [par 0047, Accordingly, Global Navigation Satellite System (GNSS) signals (or other real-time satellite information signals) may provide information to facilitate time and/or frequency synchronization of devices, including NR devices and in particular IoT devices, by providing a reference time for correction by updating the position of the UE. Accordingly, the pre-compensation performed by the UE, including the time delay (or timing advance) and frequency offset may be updated based on the GNSS signal].
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini, Wu, and DAI because information provided by the GNSS signal can be used for time delay and/or frequency offset for pre-compensation or post-compensation UE adjustments. [DAI, par 0053]
35, Ruffini and DAI creates the apparatus according to claim 34, Ruffini and DAI fail to show wherein the processing circuitry is further configured to: obtain a second propagation delay between the first user equipment and the second user equipment; and obtain a third propagation delay between the first user equipment and a synchronization reference source
In an analogous art WU show wherein the processing circuitry is further configured to: obtain a second propagation delay between the first user equipment[par 0115, For example, the receiving TRP of the second UE (e.g., the second TRP 908b) may receive the first signal 910 at the time T2. A second delay 924 (e.g., an interval between the time T1 and the time T2) represents a propagation delay for when the first UE 902 transmits the first signal 910 and the second UE 904 receives the first signal 910];
and the second user equipment; and obtain a third propagation delay between the first user equipment and a synchronization reference source[par 0126, As shown, the first delay 1012 representing the propagation delay of the second signal 1006 from the second UE 904 to the first UE 902 and the second delay 1014 representing the propagation delay of the first signal 1002 from the first UE 902 to the second UE 904 is the same in the examples of FIGS. 10A and 10B. Similarly, the third delay 1016 representing the propagation delay associated with the first reflected signal 1004 and the fourth delay 1018 representing the propagation delay associated with the second reflected signal 1008 is the same in the examples of FIGS. 10A and 10B]
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini, DAI, and WU because this provides adjusting the timing of the transmission of one signal while communicating in a bidirectional full-duplex mode may improve (e.g., reduce) clutter-interference at one UE. [Wu, par 0129]
36, Ruffini, DAI, and WU demonstrate he apparatus according to claim 35, wherein the processing circuitry is further configured to cause the apparatus to: set an offset compensation value equal to the first propagation delay[Ruffini, par 0074, The service information may also include offset estimates for propagation delay offset compensation or an error estimate with respect to a geolocation of the target network access node and/or the candidate synchronization source node. The service information may include any combination of these pieces of information];
Ruffini and Wu fail to show and determine the reference time based on the offset compensation value.
In an analogous art DAI show and determine the reference time based on the offset compensation value [par 0047, Accordingly, Global Navigation Satellite System (GNSS) signals (or other real-time satellite information signals) may provide information to facilitate time and/or frequency synchronization of devices, including NR devices and in particular IoT devices, by providing a reference time for correction by updating the position of the UE. Accordingly, the pre-compensation performed by the UE, including the time delay (or timing advance) and frequency offset may be updated based on the GNSS signal].
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini, Wu, and DAI because information provided by the GNSS signal can be used for time delay and/or frequency offset for pre-compensation or post-compensation UE adjustments. [DAI, par 0053]
39, Ruffini and Wu disclose the method according to claim 38, Ruffini and Wu fail to show further comprising: obtaining a second propagation delay between the first user equipment and the second user equipment; and obtaining a third propagation delay between the first user equipment and a synchronization reference source based on the synchronization reference source information.
In an analogous art DAI show further comprising: obtaining a second propagation delay between the first user equipment and the second user equipment[par 0115, For example, the receiving TRP of the second UE (e.g., the second TRP 908b) may receive the first signal 910 at the time T2. A second delay 924 (e.g., an interval between the time T1 and the time T2) represents a propagation delay for when the first UE 902 transmits the first signal 910 and the second UE 904 receives the first signal 910];
and obtaining a third propagation delay between the first user equipment and a synchronization reference source based on the synchronization reference source information[par 0126, As shown, the first delay 1012 representing the propagation delay of the second signal 1006 from the second UE 904 to the first UE 902 and the second delay 1014 representing the propagation delay of the first signal 1002 from the first UE 902 to the second UE 904 is the same in the examples of FIGS. 10A and 10B. Similarly, the third delay 1016 representing the propagation delay associated with the first reflected signal 1004 and the fourth delay 1018 representing the propagation delay associated with the second reflected signal 1008 is the same in the examples of FIGS. 10A and 10B]
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini, DAI, and WU because this provides adjusting the timing of the transmission of one signal while communicating in a bidirectional full-duplex mode may improve (e.g., reduce) clutter-interference at one UE. [Wu, par 0129]
6. Claim(s) 29, 41 is/are rejected under 35 U.S.C. 103 as being unpatentable over RUFFINI et al. (U.S. Pub No. 20200314782 A1) in view of DAI et al. (U.S. Pub No. 20230261838 A1) in further view of WU et al. (U.S. Pub No. 2024/0089763 A1), YEO et al. (U.S. Pub No. 2023/0057836 A1).
29, Ruffini and DAI discloses the apparatus according to 26, Ruffini and Dai fail to show wherein the processing circuitry is further configured to cause the apparatus to: obtain the second propagation delay by transmitting a request to the user equipment to transmit a physical sidelink control channel (PSSCH) transmission with a reference signal including a transmission time and a reception time of a next PSSCH reception from the apparatus, transmitting a first PSSCH transmission to the user equipment, recording a first time of transmitting the first PSSCH transmission to the user equipment, receiving a second PSSCH transmission from the user equipment, recording a first reception time of receiving the second PSSCH transmission from the user equipment, receiving, from the user equipment, a Rx-Tx value corresponding to a difference between the second transmission time of transmitting the second PSSCH transmission to the apparatus and a second reception time of receiving the first PSSCH transmission from the apparatus, and determining the second propagation delay based on the Rx-Tx value, the first transmission time, and the first reception time.
In an analogous art Wu show wherein the processing circuitry is further configured to cause the apparatus to: obtain the second propagation delay by transmitting a request to the user equipment to transmit a physical sidelink control channel (PSSCH) transmission with a reference signal including a transmission time and a reception time of a next PSSCH reception from the apparatus [par 0053, 0108, 0164, The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). D2D communication may be through a variety of wireless D2D communications system. For example, based on the second propagation delay 834, the first node 812 may apply a timing advance (TA) adjustment so that the first signal 820 is transmitted at a time that occurs earlier in time than the time T2. For example, in FIG. 8D, the first node 812 may apply a TA adjustment with a TA value 852 that is negative so that the first TRP 814a transmits the first signal 820 at a time T4 that occurs after the time T1 and before the time T2. As a result, the second TRP 814b receives the reflected signal 826 at a time T5 that occurs after the time T2 and before the time T3]
Receiving from the user equipment, a Rx-Tx value corresponding to a difference between the second transmission time of transmitting the second PSSCH transmission to the apparatus and a second reception time of receiving the first PSSCH transmission from the apparatus [par 0127, For example, the second UE 904 may receive the first signal 1002 at a time T7 that occurs before the time T2. In the illustrated example, a timing gap 1054 (e.g., an interval between the time T7 when the second UE 904 receives the timing-adjusted first signal 1002 and the time T2 when the second UE 904 received the non-adjusted first signal 1002) represents an increase in time. The timing gap 1054 also corresponds to an increase in timing between when the second UE 904 receives the first signal 1002 and the first reflected signal 1004. In particular, the timing gap 1054 indicates that the timing difference between the first signal 1002 and the second reflected signal 1008 at the second UE 904 is increased],
and determining the second propagation delay based on the Rx-Tx value, the first transmission time, and the first reception time [par 0125, For example, based on the second delay 1014, the first UE 902 may apply a TA adjustment so that the first UE 902 transmits the first signal 1002 at a time that occurs before the time T1. For example, in FIG. 10B, the first UE 902 may apply a TA adjustment with a TA value 1052 that is negative so that the first UE 902 transmits the first signal 1002 at a time T5 that occurs after the time T0 and before the time T1].
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini, DAI, and WU because this provides adjusting the timing of the transmission of one signal while communicating in a bidirectional full-duplex mode may improve (e.g., reduce) clutter-interference at one UE. [Wu, par 0129]
Ruffini, DAI, and WU fail to show transmitting a first PSSCH transmission to the user equipment, recording a first time of transmitting the first PSSCH transmission to the user equipment, receiving a second PSSCH transmission from the user equipment, recording a first reception time of receiving the second PSSCH transmission from the user equipment.
In an analogous art YEO show transmitting a first PSSCH transmission to the user equipment, recording a first time of transmitting the first PSSCH transmission to the user equipment, receiving a second PSSCH transmission from the user equipment, recording a first reception time of receiving the second PSSCH transmission from the user equipment [par 0220, the at least one processor may be configured to transmit or receive the feedback information through a PSFCH which is determined based on a time at which the first PSSCH is transmitted and a time at which the second PSSCH is received].
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini, DAI, WU, and Yeo because this enables frequency and time resources to be shared and used efficiently when communication between terminals is performed through a sidelink.
41, Ruffini, DAI, and WU reveal the method according to claim 39, Ruffini and DAI fail to show wherein the obtaining the second propagation delay comprises: transmitting a request to the first user equipment to transmit a physical sidelink control channel (PSSCH) transmission with a reference signal including a transmission time and a reception time of a next PSSCH reception from the second user equipment; transmitting a first PSSCH transmission to the first user equipment; recording a first time of transmitting the first PSSCH transmission to the first user equipment; receiving a second PSSCH transmission from the first user equipment; recording a first reception time of receiving the second PSSCH transmission from the first user equipment; receiving, from the first user equipment, a Rx-TX value corresponding to a difference between the second transmission time of transmitting the second PSSCH transmission to the second user equipment and a second reception time of receiving the first PSSCH transmission from the second user equipment; and determining the second propagation delay based on the Rx-Tx value, the first transmission time, and the first reception time.
In an analogous art Wu show wherein the obtaining the second propagation delay comprises: transmitting a request to the first user equipment to transmit a physical sidelink control channel (PSSCH) transmission with a reference signal including a transmission time and a reception time of a next PSSCH reception from the second user equipment[par 0053, 0108, 0164, The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). D2D communication may be through a variety of wireless D2D communications system. For example, based on the second propagation delay 834, the first node 812 may apply a timing advance (TA) adjustment so that the first signal 820 is transmitted at a time that occurs earlier in time than the time T2. For example, in FIG. 8D, the first node 812 may apply a TA adjustment with a TA value 852 that is negative so that the first TRP 814a transmits the first signal 820 at a time T4 that occurs after the time T1 and before the time T2. As a result, the second TRP 814b receives the reflected signal 826 at a time T5 that occurs after the time T2 and before the time T3];
receiving, from the first user equipment, a Rx-TX value corresponding to a difference between the second transmission time of transmitting the second PSSCH transmission to the second user equipment and a second reception time of receiving the first PSSCH transmission from the second user equipment[par 0127, For example, the second UE 904 may receive the first signal 1002 at a time T7 that occurs before the time T2. In the illustrated example, a timing gap 1054 (e.g., an interval between the time T7 when the second UE 904 receives the timing-adjusted first signal 1002 and the time T2 when the second UE 904 received the non-adjusted first signal 1002) represents an increase in time. The timing gap 1054 also corresponds to an increase in timing between when the second UE 904 receives the first signal 1002 and the first reflected signal 1004. In particular, the timing gap 1054 indicates that the timing difference between the first signal 1002 and the second reflected signal 1008 at the second UE 904 is increased],
and determining the second propagation delay based on the Rx-Tx value, the first transmission time, and the first reception time [par 0125, For example, based on the second delay 1014, the first UE 902 may apply a TA adjustment so that the first UE 902 transmits the first signal 1002 at a time that occurs before the time T1. For example, in FIG. 10B, the first UE 902 may apply a TA adjustment with a TA value 1052 that is negative so that the first UE 902 transmits the first signal 1002 at a time T5 that occurs after the time T0 and before the time T1].
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini, DAI, and WU because this provides adjusting the timing of the transmission of one signal while communicating in a bidirectional full-duplex mode may improve (e.g., reduce) clutter-interference at one UE. [Wu, par 0129]
Ruffini, DAI, and Wu fail to show transmitting a first PSSCH transmission to the first user equipment; recording a first time of transmitting the first PSSCH transmission to the first user equipment; receiving a second PSSCH transmission from the first user equipment; recording a first reception time of receiving the second PSSCH transmission from the first user equipment;
In an analogous art YEO show transmitting a first PSSCH transmission to the first user equipment; recording a first time of transmitting the first PSSCH transmission to the first user equipment; receiving a second PSSCH transmission from the first user equipment; recording a first reception time of receiving the second PSSCH transmission from the first user equipment[par 0220, the at least one processor may be configured to transmit or receive the feedback information through a PSFCH which is determined based on a time at which the first PSSCH is transmitted and a time at which the second PSSCH is received].
Before the effective filing date it would have been obvious to one of ordinary skill in the art to combine the teachings of Ruffini, DAI, WU, and Yeo because this enables frequency and time resources to be shared and used efficiently when communication between terminals is performed through a sidelink.
Conclusion
Any inquiry concerning this communication or earlier communications from the examiner should be directed to JASON A HARLEY whose telephone number is (571)270-5435. The examiner can normally be reached 7:30-300 6:30-8:30.
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/JASON A HARLEY/Examiner, Art Unit 2468
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