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 .
Introduction
This is a final office action in response to remarks filed on 12 June 2026. Claims 1-7 and 9-18 are amended. Claims 19-20 are canceled. Claims 21-22 are added. Claims 1-18 and 21-22 are pending.
Information Disclosure Statement
The information disclosure statement (IDS) submitted on 8 June 2026 was filed after the mailing date of the non-final office action on 12 March 2026. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner.
Examiner notes that the below-cited Karaki et al. (U.S. Patent Publication 2024/0214926) is the U.S. application for one of the references cited in the IDS.
Response to Arguments
Applicant’s arguments, see pages 7-11, filed 12 June 2026, with respect to the rejections of claims 1-20 under 35 USC 103 have been fully considered and are persuasive. Therefore, the rejections have been withdrawn. However, upon further consideration, a new ground(s) of rejection is made incorporating newly discovered prior art Karaki et al. (U.S. Patent Publication 2024/0214926) as the primary reference.
Examiner notes that applicant’s arguments are directed towards the applicability of the cited prior art (Yu, Mackenzie, and Park) with respect to the claim amendments.
Additionally, examiner appreciates the amendments further clarifying the inventive embodiment as well as the comments regarding the differences between the amended claims and cited prior art. However, examiner has relied upon newly discovered prior art Karaki et al. (U.S. Patent Publication 2024/0214926) in the rejections below as the primary reference to teach the claim amendments. Previously cited Yu and Mackenzie are not cited in the rejections below and Park is relied upon in the rejections of dependent claims 7-9 and 16-18; examiner notes that the previous rejections of claims 7-9 and 16-18 were not separately discussed in the remarks.
Claim Interpretation
The claims have been considered according to the latest Patent Eligibility Guidelines and are considered eligible.
Claim Objections
Claims 6, 15, and 22 are objected to because of the following informalities:
Claims 6 and 15 each recite “information includes further includes cell information” in the amendment.
Claim 22 recites “the gNB-CU of claim 10”, however gNB-CU was described in claim 21. Appropriate correction is required.
Claim Rejections - 35 USC § 102
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 (i.e., changing from AIA to pre-AIA ) 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 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)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention.
Claims 1-6, 10-15, and 21-22 are rejected under 35 U.S.C. 102(a)(2) as being anticipated by Karaki et al. (U.S. Patent Publication 2024/0214926).
Regarding claim 1, Karaki disclosed a method performed by a base station in a wireless communication system (see Karaki Fig. 9: method between two network nodes exchanging coordination messages; [0272]; first network node is a gNB-DU whereas the second network node is a gNB-CU; [0273]: first network node is a gNB-CU whereas the second network node is a gNB-DU; Fig. 11: gNB-CU, i.e. “a base station”, in communication with gNB-DU 1 and 2, i.e. “at least one neighboring base station”, via F1 interfaces), the method comprising:
receiving first configuration information related to an energy saving of at least one neighboring base station from the at least one neighboring base station (examiner notes that “information related to an energy saving of” a neighboring (DU) base station allows for a variety of potential interpretations, e.g., that the DU wants to enter (or has entered or is entering) energy-savings mode, wants to leave (or has left or is leaving) energy-savings mode, metrics about energy savings, that the DU wants the CU to enter energy-savings mode, etc. | see Karaki Fig. 9 #911, [0190]: first network node sends a first coordination message to a second network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0211]: “The first coordination message can contain at least one of the following indications of an energy savings action (applied to cells, SSB beams, and/or CSI-RS beams) associated to the first network node:”; [0221]: “at least one…SSB beam…of the first network node has been (or is being, or will be) taken out of service” | [0257]: “the second network node receives from the first network node the first coordination message, wherein the first coordination message may: (1) indicate changes in the coverage of cell(s), SSB beam(s), and/or CSI-RS beam(s) served by the first network node, due to the first network node starting or stopping an energy savings action (e.g., an energy savings action), and/or (2) request changes in the coverage of cell(s), SSB beam(s), and/or CSI-RS beam(s) served by the second network node due to an energy savings action of the first network node and/or due to an energy savings action requested by the first network node to the second network node. That is, the first coordination message can contain the indications as described above with respect to the embodiments for the first network node.”; [0261]: “the first coordination message comprises indications pertaining to energy metrics, e.g. indicating how much energy consumption/efficiency is expected to improve by means of applying the configuration at the first network node comprised in the first coordination message…”);
configuring an energy saving of the base station based on the first configuration information (examiner notes that similar to the limitation above, “configuring an energy saving of the base station” allows for a variety of potential interpretations, e.g., that the CU neighboring base station changes its energy-savings mode (e.g., leaves energy savings, enters energy savings, modifies current energy savings, etc.) based on the energy-savings information sent from the DU | see Karaki Fig. 9 #911, [0190]: first network node sends a first coordination message to a second network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0258]: “the second network node determines a second configuration of cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started or planned by the first network node. Such configuration may serve the purpose of compensating for the coverage gap left by the modified configuration adopted by the first network node due to energy savings reasons”; [0261]: “the first coordination message comprises indications pertaining to energy metrics, e.g. indicating how much energy consumption/efficiency is expected to improve by means of applying the configuration at the first network node comprised in the first coordination message. The second node can use the said indications to perform at least one of the following:…(ii) evaluating/determining if a second node configuration is applicable that compensates for the modified configuration at the first network node; (iii) applying a second node configuration, if applicable…”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node…The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”, i.e. the CU saves energy due to the updated configuration after receiving the message from the DU); and
transmitting second configuration information related to the energy saving of the base station to the at least one neighboring base station (see Karaki Fig. 9 #912, [0194]: second network node sends a second coordination message to a first network node in response to the first coordination message that was received by the second network node from the first network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0261]: “As another embodiment, the first coordination message comprises indications pertaining to energy metrics, e.g. indicating how much energy consumption/efficiency is expected to improve by means of applying the configuration at the first network node comprised in the first coordination message. The second node can use the said indications to perform at least one of the following:… (iv) sending to the first network node the second coordination message that can comprise an indication indicating that the request is feasible or not, and the determined second node configuration.”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node. The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”),
wherein the base station is a centralized unit (CU) and the at least one neighboring base station is at least one distributed unit (DU) in the wireless communication system (see Karaki Fig. 9: method between two network nodes exchanging coordination messages; [0272]; first network node is a gNB-DU whereas the second network node is a gNB-CU; Fig. 11: gNB-CU, i.e. “a base station”, in communication with gNB-DU 1 and 2, i.e. “at least one neighboring base station”, via F1 interfaces), and
wherein the second configuration information includes information related to deactivation of a synchronization signal block (SSB) transmission in one or more cells for the energy saving (examiner notes that “information related to deactivation of a SSB” can refer to a variety of types of information, e.g., ACK/NACK from CU about DU’s SSB-deactivation, updated CU configuration due to DU’s SSB deactivation, energy-savings effect due to SSB-deactivation at either CU or DU, etc. | see Karaki Fig. 9 #912 second network node sends a second coordination message to a first network node in response to the first coordination message that was received by the second network node from the first network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0211]: “The first coordination message can contain at least one of the following indications of an energy savings action (applied to cells, SSB beams, and/or CSI-RS beams) associated to the first network node:”; [0221]: “at least one…SSB beam…of the first network node has been (or is being, or will be) taken out of service” | [0261]: “…The second node can use the said indications to perform at least one of the following:… (iv) sending to the first network node the second coordination message that can comprise an indication indicating that the request is feasible or not, and the determined second node configuration.”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node. The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”).
Regarding claim 2, Karaki disclosed the method of claim 1, further comprising: transmitting capability information related to the energy saving of the base station to the at least one neighboring base station (see Karaki [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node. The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”; [0263]: “The second coordination message may indicate a failure and may include an indication that change(s) in cell(s), SSB beams(s), and/or CSI-RS beams(s) configuration at the second node, which would compensate for the changes at the first network node (e.g., that would enable cell(s), SSB beams(s), and/or CSI-RS beams(s) of second network node to provide coverage to the areas left un-covered by the change in the first network node) is not feasible because this cause an overall deterioration of the energy savings at the second node or because this would cause an overall deterioration of the energy savings in the system made by the first and the second network node. In some scenarios, the second coordination message indicates a failure due to other reasons (e.g. overload, capacity limitations, etc.).”).
Regarding claim 3, Karaki disclosed the method of claim 1, further comprising:
monitoring the first configuration information about the at least one neighboring base station while the base station operates in an energy saving mode (see Karaki [0143]: “When the NW determines that a signal degradation for the serving cell of a UE and that a neighboring cell (a.k.a., a target cell) could serve the UE with a better signal quality, a handover procedure between the serving cell and the target cell can be initiated (e.g., a handover procedure between the eNB providing the serving cell and the eNB providing the target cell). A handover procedure may additionally be initiated to balance the load between cells, and therefore optimize the usage of the system resources and increase the system throughput.”; [0144]: “The eNBs providing the serving cell and the target cell may directly exchange load information by using the X2 interface prior to initiating a handover preparation procedure so as to avoid moving a UE to a loaded cell which, despite having a stronger radio signal towards the UE, may not be able to serve the UE with sufficient radio resources. In this case, initiating the handover would degrade the performance of the UE moved to the target cell as well as of the UEs already connected to the target cell (since the available radio resources would be shared among more UEs).”); and
transmitting information for indicating whether to change the second
configuration information to the at least one neighboring base station (see Karaki [0143]: “When the NW determines that a signal degradation for the serving cell of a UE and that a neighboring cell (a.k.a., a target cell) could serve the UE with a better signal quality, a handover procedure between the serving cell and the target cell can be initiated (e.g., a handover procedure between the eNB providing the serving cell and the eNB providing the target cell). A handover procedure may additionally be initiated to balance the load between cells, and therefore optimize the usage of the system resources and increase the system throughput.”; [0144]: “The eNBs providing the serving cell and the target cell may directly exchange load information by using the X2 interface prior to initiating a handover preparation procedure so as to avoid moving a UE to a loaded cell which, despite having a stronger radio signal towards the UE, may not be able to serve the UE with sufficient radio resources. In this case, initiating the handover would degrade the performance of the UE moved to the target cell as well as of the UEs already connected to the target cell (since the available radio resources would be shared among more UEs).”).
Regarding claim 4, Karaki disclosed the method of claim 1, wherein the first configuration information and the second configuration information are transmitted and received using an Xn interface or an F1 interface between the base station and the at least one neighboring base station (see Karaki Fig. 9: method between two network nodes exchanging coordination messages; [0272]; first network node is a gNB-DU whereas the second network node is a gNB-CU communicating with each other via F1 interface; [0273]: first network node is a gNB-CU whereas the second network node is a gNB-DU communicating with each other via F1 interface; Fig. 11: gNB-CU, i.e. “a base station”, in communication with gNB-DU 1 and 2, i.e. “at least one neighboring base station”, via F1 interfaces).
Regarding claim 5, Karaki disclosed the method of claim 1, wherein the base station and the at least one neighboring base station share an energy saving-related configuration with each other (see Karaki Fig. 9 #911, [0190]: first network node sends a first coordination message to a second network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0211]: “The first coordination message can contain at least one of the following indications of an energy savings action (applied to cells, SSB beams, and/or CSI-RS beams) associated to the first network node:”; [0221]: “at least one…SSB beam…of the first network node has been (or is being, or will be) taken out of service” | [0257]: “the second network node receives from the first network node the first coordination message, wherein the first coordination message may: (1) indicate changes in the coverage of cell(s), SSB beam(s), and/or CSI-RS beam(s) served by the first network node, due to the first network node starting or stopping an energy savings action (e.g., an energy savings action),…” | [0261]: “…The second node can use the said indications to perform at least one of the following:… (iv) sending to the first network node the second coordination message that can comprise an indication indicating that the request is feasible or not, and the determined second node configuration.”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node…”).
Regarding claim 6, Karaki disclosed the method of claim 1 above, wherein the second configuration information includes further includes cell information of the one or more cells associated with the deactivation of the SSB transmission (examiner notes that “cell information of the one or more cells associated with the” SSB deactivation allows for a variety of potential interpretations, e.g., cell information of any cell affected by the SSB deactivation associated with/mentioned in the first configuration message, etc. | see Karaki Fig. 9 #912 second network node sends a second coordination message to a first network node in response to the first coordination message that was received by the second network node from the first network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0211]: “The first coordination message can contain at least one of the following indications of an energy savings action (applied to cells, SSB beams, and/or CSI-RS beams) associated to the first network node:”; [0221]: “at least one…SSB beam…of the first network node has been (or is being, or will be) taken out of service” | [0261]: “…The second node can use the said indications to perform at least one of the following:… (iv) sending to the first network node the second coordination message that can comprise an indication indicating that the request is feasible or not, and the determined second node configuration.”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node. The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”).
Regarding claim 10, the claim contains the limitations, substantially as claimed, as described in claim 1 above. Examiner notes that claim 1 describes a method and claim 10 describes a base station implementing the method. Karaki disclosed, as recited in claim 10: A base station in a wireless communication system (see Karaki Fig. 9: method between two network nodes exchanging coordination messages; [0272]; first network node is a gNB-DU whereas the second network node is a gNB-CU; [0273]: first network node is a gNB-CU whereas the second network node is a gNB-DU; Fig. 11: gNB-CU, i.e. “a base station”, in communication with gNB-DU 1 and 2, i.e. “at least one neighboring base station”, via F1 interfaces), the base station comprising:
a transceiver (see Karaki Fig. 9: two network nodes exchanging coordination messages with each other; examiner notes that a transceiver is inherent); and
a processor (see Karaki Fig. 9: two network nodes exchanging coordination messages with each other; examiner notes that a processor is inherent) configured to:
receive, through the transceiver, first configuration information related to an energy saving of at least one neighboring base station from the at least one neighboring base station (examiner notes that “information related to an energy saving of” a neighboring (DU) base station allows for a variety of potential interpretations, e.g., that the DU wants to enter (or has entered or is entering) energy-savings mode, wants to leave (or has left or is leaving) energy-savings mode, metrics about energy savings, that the DU wants the CU to enter energy-savings mode, etc. | see Karaki Fig. 9 #911, [0190]: first network node sends a first coordination message to a second network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0211]: “The first coordination message can contain at least one of the following indications of an energy savings action (applied to cells, SSB beams, and/or CSI-RS beams) associated to the first network node:”; [0221]: “at least one…SSB beam…of the first network node has been (or is being, or will be) taken out of service” | [0257]: “the second network node receives from the first network node the first coordination message, wherein the first coordination message may: (1) indicate changes in the coverage of cell(s), SSB beam(s), and/or CSI-RS beam(s) served by the first network node, due to the first network node starting or stopping an energy savings action (e.g., an energy savings action), and/or (2) request changes in the coverage of cell(s), SSB beam(s), and/or CSI-RS beam(s) served by the second network node due to an energy savings action of the first network node and/or due to an energy savings action requested by the first network node to the second network node. That is, the first coordination message can contain the indications as described above with respect to the embodiments for the first network node.”; [0261]: “the first coordination message comprises indications pertaining to energy metrics, e.g. indicating how much energy consumption/efficiency is expected to improve by means of applying the configuration at the first network node comprised in the first coordination message…”),
configure an energy saving of the base station based on the first configuration information (examiner notes that similar to the limitation above, “configuring an energy saving of the base station” allows for a variety of potential interpretations, e.g., that the CU neighboring base station changes its energy-savings mode (e.g., leaves energy savings, enters energy savings, modifies current energy savings, etc.) based on the energy-savings information sent from the DU | see Karaki Fig. 9 #911, [0190]: first network node sends a first coordination message to a second network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0258]: “the second network node determines a second configuration of cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started or planned by the first network node. Such configuration may serve the purpose of compensating for the coverage gap left by the modified configuration adopted by the first network node due to energy savings reasons”; [0261]: “the first coordination message comprises indications pertaining to energy metrics, e.g. indicating how much energy consumption/efficiency is expected to improve by means of applying the configuration at the first network node comprised in the first coordination message. The second node can use the said indications to perform at least one of the following:…(ii) evaluating/determining if a second node configuration is applicable that compensates for the modified configuration at the first network node; (iii) applying a second node configuration, if applicable…”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node…The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”, i.e. the CU saves energy due to the updated configuration after receiving the message from the DU), and
transmit, through the transceiver, second configuration information related to the energy saving of the base station to the at least one neighboring base station (see Karaki Fig. 9 #912, [0194]: second network node sends a second coordination message to a first network node in response to the first coordination message that was received by the second network node from the first network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0261]: “As another embodiment, the first coordination message comprises indications pertaining to energy metrics, e.g. indicating how much energy consumption/efficiency is expected to improve by means of applying the configuration at the first network node comprised in the first coordination message. The second node can use the said indications to perform at least one of the following:… (iv) sending to the first network node the second coordination message that can comprise an indication indicating that the request is feasible or not, and the determined second node configuration.”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node. The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”),
wherein the base station is a centralized unit (CU) and the at least one neighboring base station is at least one distributed unit (DU) in the wireless communication system (see Karaki Fig. 9: method between two network nodes exchanging coordination messages; [0272]; first network node is a gNB-DU whereas the second network node is a gNB-CU; Fig. 11: gNB-CU, i.e. “a base station”, in communication with gNB-DU 1 and 2, i.e. “at least one neighboring base station”, via F1 interfaces), and
wherein the second configuration information includes information related to deactivation of a synchronization signal block (SSB) transmission in one or more cells for the energy saving (examiner notes that “information related to deactivation of a SSB” can refer to a variety of types of information, e.g., ACK/NACK from CU about DU’s SSB-deactivation, updated CU configuration due to DU’s SSB deactivation, energy-savings effect due to SSB-deactivation at either CU or DU, etc. | see Karaki Fig. 9 #912 second network node sends a second coordination message to a first network node in response to the first coordination message that was received by the second network node from the first network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0211]: “The first coordination message can contain at least one of the following indications of an energy savings action (applied to cells, SSB beams, and/or CSI-RS beams) associated to the first network node:”; [0221]: “at least one…SSB beam…of the first network node has been (or is being, or will be) taken out of service” | [0261]: “…The second node can use the said indications to perform at least one of the following:… (iv) sending to the first network node the second coordination message that can comprise an indication indicating that the request is feasible or not, and the determined second node configuration.”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node. The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”).
Regarding claim 11, the claim contains the limitations, substantially as claimed, as described in claim 2 above. Karaki disclosed, as recited in claim 11: The base station of claim 10, wherein the processor is further configured to transmit, through the transceiver, capability information related to the energy saving of the base station to the at least one neighboring base station (see Karaki [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node. The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”; [0263]: “The second coordination message may indicate a failure and may include an indication that change(s) in cell(s), SSB beams(s), and/or CSI-RS beams(s) configuration at the second node, which would compensate for the changes at the first network node (e.g., that would enable cell(s), SSB beams(s), and/or CSI-RS beams(s) of second network node to provide coverage to the areas left un-covered by the change in the first network node) is not feasible because this cause an overall deterioration of the energy savings at the second node or because this would cause an overall deterioration of the energy savings in the system made by the first and the second network node. In some scenarios, the second coordination message indicates a failure due to other reasons (e.g. overload, capacity limitations, etc.).”).
Regarding claim 12, the claim contains the limitations, substantially as claimed, as described in claim 3 above. Karaki disclosed, as recited in claim 12: The base station of claim 10, wherein the processor is further configured to
monitor the first configuration information about the at least one neighboring base station while the base station operates in an energy saving mode (see Karaki [0143]: “When the NW determines that a signal degradation for the serving cell of a UE and that a neighboring cell (a.k.a., a target cell) could serve the UE with a better signal quality, a handover procedure between the serving cell and the target cell can be initiated (e.g., a handover procedure between the eNB providing the serving cell and the eNB providing the target cell). A handover procedure may additionally be initiated to balance the load between cells, and therefore optimize the usage of the system resources and increase the system throughput.”; [0144]: “The eNBs providing the serving cell and the target cell may directly exchange load information by using the X2 interface prior to initiating a handover preparation procedure so as to avoid moving a UE to a loaded cell which, despite having a stronger radio signal towards the UE, may not be able to serve the UE with sufficient radio resources. In this case, initiating the handover would degrade the performance of the UE moved to the target cell as well as of the UEs already connected to the target cell (since the available radio resources would be shared among more UEs).”); and
transmit, through the transceiver, information for indicating whether to change the second configuration information to the at least one neighboring base station (see Karaki [0143]: “When the NW determines that a signal degradation for the serving cell of a UE and that a neighboring cell (a.k.a., a target cell) could serve the UE with a better signal quality, a handover procedure between the serving cell and the target cell can be initiated (e.g., a handover procedure between the eNB providing the serving cell and the eNB providing the target cell). A handover procedure may additionally be initiated to balance the load between cells, and therefore optimize the usage of the system resources and increase the system throughput.”; [0144]: “The eNBs providing the serving cell and the target cell may directly exchange load information by using the X2 interface prior to initiating a handover preparation procedure so as to avoid moving a UE to a loaded cell which, despite having a stronger radio signal towards the UE, may not be able to serve the UE with sufficient radio resources. In this case, initiating the handover would degrade the performance of the UE moved to the target cell as well as of the UEs already connected to the target cell (since the available radio resources would be shared among more UEs).”).
Regarding claim 13, the claim contains the limitations, substantially as claimed, as described in claim 4 above. Karaki disclosed, as recited in claim 13: The base station of claim 10, wherein the first configuration information and the second configuration information are transmitted and received using an Xn interface or an F1 interface between the base station and the at least one neighboring base station (see Karaki Fig. 9: method between two network nodes exchanging coordination messages; [0272]; first network node is a gNB-DU whereas the second network node is a gNB-CU communicating with each other via F1 interface; [0273]: first network node is a gNB-CU whereas the second network node is a gNB-DU communicating with each other via F1 interface; Fig. 11: gNB-CU, i.e. “a base station”, in communication with gNB-DU 1 and 2, i.e. “at least one neighboring base station”, via F1 interfaces).
Regarding claim 14, the claim contains the limitations, substantially as claimed, as described in claim 5 above. Karaki disclosed, as recited in claim 14: The base station of claim 10, wherein the base station and the at least one ambient base station share an energy saving-related configuration with each other (see Karaki Fig. 9 #911, [0190]: first network node sends a first coordination message to a second network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0211]: “The first coordination message can contain at least one of the following indications of an energy savings action (applied to cells, SSB beams, and/or CSI-RS beams) associated to the first network node:”; [0221]: “at least one…SSB beam…of the first network node has been (or is being, or will be) taken out of service” | [0257]: “the second network node receives from the first network node the first coordination message, wherein the first coordination message may: (1) indicate changes in the coverage of cell(s), SSB beam(s), and/or CSI-RS beam(s) served by the first network node, due to the first network node starting or stopping an energy savings action (e.g., an energy savings action),…” | [0261]: “…The second node can use the said indications to perform at least one of the following:… (iv) sending to the first network node the second coordination message that can comprise an indication indicating that the request is feasible or not, and the determined second node configuration.”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node…”).
Regarding claim 15, the claim contains the limitations, substantially as claimed, as described in claim 6 above. Karaki disclosed, as recited in claim 15: the base station of claim 10, wherein the second configuration information includes further includes cell information of the one or more cells associated with the deactivation of the SSB transmission (examiner notes that “cell information of the one or more cells associated with the” SSB deactivation allows for a variety of potential interpretations, e.g., cell information of any cell affected by the SSB deactivation associated with/mentioned in the first configuration message, etc. | see Karaki Fig. 9 #912 second network node sends a second coordination message to a first network node in response to the first coordination message that was received by the second network node from the first network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0211]: “The first coordination message can contain at least one of the following indications of an energy savings action (applied to cells, SSB beams, and/or CSI-RS beams) associated to the first network node:”; [0221]: “at least one…SSB beam…of the first network node has been (or is being, or will be) taken out of service” | [0261]: “…The second node can use the said indications to perform at least one of the following:… (iv) sending to the first network node the second coordination message that can comprise an indication indicating that the request is feasible or not, and the determined second node configuration.”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node. The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”).
Regarding claim 21, the claim contains the limitations, substantially as claimed, as described in claim 1 above. Examiner notes that claim 1 describes a method and claim 21 describes a gNB-CU implementing the method. Karaki disclosed, as recited in claim 21: A gNB-central unit (gNB-CU) communicating with a gNB-distributed unit (gNB-DU) in a wireless communication system (see Karaki Fig. 9: method between two network nodes exchanging coordination messages; [0272]; first network node is a gNB-DU whereas the second network node is a gNB-CU; [0273]: first network node is a gNB-CU whereas the second network node is a gNB-DU; Fig. 11: gNB-CU, i.e. “a base station”, in communication with gNB-DU 1 and 2, i.e. “at least one neighboring base station”, via F1 interfaces), the gNB-CU comprising:
a transceiver (see Karaki Fig. 9: two network nodes exchanging coordination messages with each other; examiner notes that a transceiver is inherent); and
a processor (see Karaki Fig. 9: two network nodes exchanging coordination messages with each other; examiner notes that a processor is inherent) configured to:
transmit, to the gNB-DU through the transceiver, configuration information related to deactivation of a synchronization signal block (SSB) transmission in one or more cells of the gNB-DU for an energy saving (examiner notes that “information related to deactivation of” a DU’s SSB allows for a variety of potential interpretations, e.g., that the CU wants the DU to deactivate an SSB, the CU wants the DU to (re)activate a currently deactivated SSB, ACK/NACK of DU’s deactivation of SSB, CU’s configuration related to DU’s deactivation of SSB, etc. | see Karaki Fig. 9 #911, [0190]: first network node sends a first coordination message to a second network node; [0273]: first network node is a gNB-CU and the second network node is a gNB-DU; [0191]: “The first network node can further use the first coordination message to indicate to the second network node that the first network node is requesting that the second network node modify coverage and/or capacity configuration of at least one cell, SSB beam, and/or CSI-RS beam served by the second network node.” | [0257]: “the second network node receives from the first network node the first coordination message, wherein the first coordination message may:…(2) request changes in the coverage of cell(s), SSB beam(s), and/or CSI-RS beam(s) served by the second network node due to an energy savings action of the first network node and/or due to an energy savings action requested by the first network node to the second network node…” | [0238]: “the energy savings action requested by the first network node to the second network node with the information included in the first coordination message may indicate to modify coverage and/or capacity configuration of at least one cell, SSB beam, and/or CSI-RS beam of the second network node. The requested action can be one or more in the group of:”; [0239]: “activating or deactivating a cell of the second network node; [0240]: “modifying coverage or capacity of one or more cells, SSB beams, and/or CSI-RS beams of the second network node”), and
receive, through the transceiver from the gNB-DU, an acknowledge message for the configuration information related to the deactivation of the SSB transmission in one or more cells of the gNB-DU (see Karaki Fig. 9 #912: second network node sends a second coordination message to a first network node in response to the first coordination message that was received by the second network node from the first network node; [0273]: first network node is a gNB-CU and the second network node is a gNB-DU | [0191]: ”The first network node can further use the first coordination message to indicate to the second network node that the first network node is requesting that the second network node modify coverage and/or capacity configuration of at least one cell, SSB beam, and/or CSI-RS beam served by the second network node.”; [0194]: “The second network node can send to the first network node a second coordination message 912 to acknowledge the request” | [0238]: “In one embodiment, the energy savings action requested by the first network node to the second network node with the information included in the first coordination message may indicate to modify coverage and/or capacity configuration of at least one cell, SSB beam, and/or CSI-RS beam of the second network node. The requested action can be one or more in the group of:”; [0239]: “activating or deactivating a cell of the second network node; [0240]: “modifying coverage or capacity of one or more cells, SSB beams, and/or CSI-RS beams of the second network node” | [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node. The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”; [0263]: “The second coordination message may indicate a failure and may include an indication that change(s) in cell(s), SSB beams(s), and/or CSI-RS beams(s) configuration at the second node…is not feasible because this cause an overall deterioration of the energy savings at the second node or because this would cause an overall deterioration of the energy savings in the system made by the first and the second network node. In some scenarios, the second coordination message indicates a failure due to other reasons (e.g. overload, capacity limitations, etc.).”),
wherein the gNB-CU communicates with the gNB-DU using a F1 interface (see Karaki Fig. 9: method between two network nodes exchanging coordination messages; [0272]; first network node is a gNB-DU whereas the second network node is a gNB-CU communicating with each other via F1 interface; [0273]: first network node is a gNB-CU whereas the second network node is a gNB-DU communicating with each other via F1 interface; Fig. 11: gNB-CU, i.e. “a base station”, in communication with gNB-DU 1 and 2, i.e. “at least one neighboring base station”, via F1 interfaces).
Regarding claim 21, the claim contains the limitations, substantially as claimed, as described in claim 6 above. Karaki disclosed, as recited in claim 21: The gNB-CU of claim 10, wherein the configuration information further includes cell information of the one or more cells associated with the deactivation of the SSB transmission (examiner notes that “cell information of the one or more cells associated with the” SSB deactivation allows for a variety of potential interpretations, e.g., cell information of any cell affected by the SSB deactivation associated with/mentioned in the first configuration message, etc. | see Karaki Fig. 9 #912 second network node sends a second coordination message to a first network node in response to the first coordination message that was received by the second network node from the first network node; [0272]: first network node is a gNB-DU and the second network node is a gNB-CU | [0211]: “The first coordination message can contain at least one of the following indications of an energy savings action (applied to cells, SSB beams, and/or CSI-RS beams) associated to the first network node:”; [0221]: “at least one…SSB beam…of the first network node has been (or is being, or will be) taken out of service” | [0261]: “…The second node can use the said indications to perform at least one of the following:… (iv) sending to the first network node the second coordination message that can comprise an indication indicating that the request is feasible or not, and the determined second node configuration.”; [0262]: “the second coordination message includes information pertaining to the second configuration of the second network node, and comprising information concerning cell(s), SSB beam(s), and/or CSI-RS beam(s) of the second network node due to energy saving actions started by the first network node. The response message may also include an indication of at least one energy metrics (e.g., a value indicating an amount of energy saved) related to the second network node and an associated impact (actual or predicted) due to acknowledging the requests/indications received in the first coordination message.”).
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.
Claims 7-9 and 16-18 are rejected under 35 U.S.C. 103 as being unpatentable over Karaki as applied to claims 1 and 10 above, and further in view of Park et al. (U.S. Patent Publication 2025/0220608; US provisional 63/410,048).
Regarding claim 7, Karaki disclosed the invention, substantially as claimed, as described in the method of claim 1 above, but did not explicitly disclose the following limitations that are taught in a related art, Park:
wherein at least one of the first configuration information and the second configuration information includes information about an on-demand SSB operation of transmitting an on-demand SSB based on a request from a user equipment (UE) for the energy saving (Park disclosed “Example embodiments may support that a base station sends, to another base station, SSB configurations (e.g., deactivation/activation of one or more SSB) of its cell associated with energy saving operation…” (see Park [provisional 0199; US-0217]). “…the second configuration message comprising…the second parameters (SSB-configuration2) indicating to deactivate the one or more first SSBs of the second cell. The second parameters may be associated with the energy saving activation of the second cell…” (see Park [provisional 0207; US-0225]). “In an example, the second parameters may comprise at least one of…a field indicating on-demand SSB transmission…” (see Park [provisional 0212; US-0230]).), and
wherein the information about the on-demand SSB operation includes at least one of information about a cell supporting on-demand SSB transmission, information indicating whether the request from the UE is possible, index and period information about an SSB available as the on-demand SSB, or SSB transmission power information (Park disclosed “In an example, the deactivation of the one or more first SSBs may be associated with the energy saving activation of the second cell. The second configuration message may comprise at least one of: a cell identifier…of the second cell; SSB indexes of one or more of the plurality of SSBs of the cell for the energy saving of the second cell…” (see Park [provisional 0208; US-0226]). “In an example, the second parameters may comprise at least one of: a transmission periodicity of one or more of the plurality of SSBs of the second cell; a first transmission periodicity (e.g., long period, 160ms) of the one or more first SSBs of the second cell; a second transmission periodicity (e.g., short period, 20ms) of the one or more second SSBs of the second cell…a field indicating on-demand SSB transmission…” (see Park [provisional 0212; US-0230]). “In an example, the second parameters may comprise at least one of: a field indicating to transmit one or more of the plurality of SSBs of the second cell with a low power…”(see Park [provisional 0213; US-0231]).).
It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of Karaki and Park to further describe types of energy saving configurations. Including Park’s teachings regarding the role of SSBs in energy saving configurations would increase the efficiency of radio resource utilization (see Park [provisional 0199; US-0230]).
Regarding claim 8, Karaki-Park disclosed the method of claim 7, wherein at least one of the first configuration information and the second configuration information further includes wake-up signaling (WUS) information received from the UE to transmit the on-demand SSB (Park disclosed “…the UE may be in a sleep state for the majority of the time (e.g., to conserve battery power). The UE may wake up periodically…” (see Park [provisional 0084; US-0101]). “…While in RRC inactive 606, the UE may be in a sleep state and mobility of the UE may be managed by the UE through cell reselection…” (see Park [provisional 0085; US-0102]). “…the second parameters (SSB-configuration2) indicating to deactivate the one or more first SSBs of the second cell. The second parameters may be associated with the energy saving activation of the second cell…” (see Park [provisional 0207; US-0225]). “In an example, the second parameters may comprise at least one of: a transmission periodicity of one or more of the plurality of SSBs of the second cell; a first transmission periodicity (e.g., long period, 160ms) of the one or more first SSBs of the second cell; a second transmission periodicity (e.g., short period, 20ms) of the one or more second SSBs of the second cell…a field indicating on-demand SSB transmission…” (see Park [provisional 0212; US-0230]).).
It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of Karaki and Park to further describe types of energy saving configurations. Including Park’s teachings regarding the role of SSBs in energy saving configurations would increase the efficiency of radio resource utilization (see Park [provisional 0199; US-0230]).
Regarding claim 9, Karaki-Park disclosed the method of claim 8, wherein the WUS information includes subcarrier spacing of a WUS transmission, transmit power for the WUS transmission, and at least one of a WUS occasion related to the SSB for the WUS transmission or WUS time window information (Park disclosed “…the UE may be in a sleep state for the majority of the time (e.g., to conserve battery power). The UE may wake up periodically (e.g., once in every discontinuous reception cycle)…” (see Park [provisional 0084; US-0101]). “The duration of a slot may depend on the numerology used for the OFDM symbols of the slot...A numerology may be defined in terms of subcarrier spacing and cyclic prefix duration” (see Park [provisional 0093; US-0110]). “…The UE may determine, based on the one or more RACH parameters, a time-frequency resource and/or an uplink transmit power…” (see Park [provisional 0152; US-0169]).).
It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of Karaki and Park to further describe types of energy saving configurations. Including Park’s teachings regarding the role of SSBs in energy saving configurations would increase the efficiency of radio resource utilization (see Park [provisional 0199; US-0230]).
Regarding claim 16, the claim contains the limitations, substantially as claimed, as described in claim 7 above. Karaki disclosed, as recited in claim 16:
Karaki disclosed the invention, substantially as claimed, as described in the base station of claim 10 above, but did not explicitly disclose the following limitations that are taught in a related art, Park:
wherein at least one of the first configuration information and the second
configuration information includes information about an on-demand SSB operation of transmitting an on-demand SSB based on a request from a user equipment (UE) for the energy saving (Park disclosed “Example embodiments may support that a base station sends, to another base station, SSB configurations (e.g., deactivation/activation of one or more SSB) of its cell associated with energy saving operation…” (see Park [provisional 0199; US-0217]). “…the second configuration message comprising…the second parameters (SSB-configuration2) indicating to deactivate the one or more first SSBs of the second cell. The second parameters may be associated with the energy saving activation of the second cell…” (see Park [provisional 0207; US-0225]). “In an example, the second parameters may comprise at least one of…a field indicating on-demand SSB transmission…” (see Park [provisional 0212; US-0230]).), and
wherein the information about the on-demand SSB includes at least one of
information about a cell supporting on-demand SSB transmission, information
indicating whether the request from the UE is possible, index and period information about an SSB available as the on-demand SSB, or SSB transmission power information (Park disclosed “In an example, the deactivation of the one or more first SSBs may be associated with the energy saving activation of the second cell. The second configuration message may comprise at least one of: a cell identifier…of the second cell; SSB indexes of one or more of the plurality of SSBs of the cell for the energy saving of the second cell…” (see Park [provisional 0208; US-0226]). “In an example, the second parameters may comprise at least one of: a transmission periodicity of one or more of the plurality of SSBs of the second cell; a first transmission periodicity (e.g., long period, 160ms) of the one or more first SSBs of the second cell; a second transmission periodicity (e.g., short period, 20ms) of the one or more second SSBs of the second cell…a field indicating on-demand SSB transmission…” (see Park [provisional 0212; US-0230]). “In an example, the second parameters may comprise at least one of: a field indicating to transmit one or more of the plurality of SSBs of the second cell with a low power…”(see Park [provisional 0213; US-0231]).).
It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of Karaki and Park to further describe types of energy saving configurations. Including Park’s teachings regarding the role of SSBs in energy saving configurations would increase the efficiency of radio resource utilization (see Park [provisional 0199; US-0230]).
Regarding claim 17, the claim contains the limitations, substantially as claimed, as described in claim 8 above. Karaki-Park disclosed, as recited in claim 17: The base station of claim 16, wherein at least one of the first configuration information or the second configuration information further includes wake-up signaling (WUS) information received from the UE to transmit the on-demand SSB (Park disclosed “…the UE may be in a sleep state for the majority of the time (e.g., to conserve battery power). The UE may wake up periodically…” (see Park [provisional 0084; US-0101]). “…While in RRC inactive 606, the UE may be in a sleep state and mobility of the UE may be managed by the UE through cell reselection…” (see Park [provisional 0085; US-0102]). “…the second parameters (SSB-configuration2) indicating to deactivate the one or more first SSBs of the second cell. The second parameters may be associated with the energy saving activation of the second cell…” (see Park [provisional 0207; US-0225]). “In an example, the second parameters may comprise at least one of: a transmission periodicity of one or more of the plurality of SSBs of the second cell; a first transmission periodicity (e.g., long period, 160ms) of the one or more first SSBs of the second cell; a second transmission periodicity (e.g., short period, 20ms) of the one or more second SSBs of the second cell…a field indicating on-demand SSB transmission…” (see Park [provisional 0212; US-0230]).).
It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of Karaki and Park to further describe types of energy saving configurations. Including Park’s teachings regarding the role of SSBs in energy saving configurations would increase the efficiency of radio resource utilization (see Park [provisional 0199; US-0230]).
Regarding claim 18, the claim contains the limitations, substantially as claimed, as described in claim 9 above. Karaki-Park disclosed, as recited in claim 18: The base station of claim 17, wherein the WUS information includes subcarrier spacing of a WUS transmission, transmit power for the WUS transmission, and at least one of a WUS occasion related to the SSB for the WUS transmission or WUS time window information (Park disclosed “…the UE may be in a sleep state for the majority of the time (e.g., to conserve battery power). The UE may wake up periodically (e.g., once in every discontinuous reception cycle)…” (see Park [provisional 0084; US-0101]). “The duration of a slot may depend on the numerology used for the OFDM symbols of the slot...A numerology may be defined in terms of subcarrier spacing and cyclic prefix duration” (see Park [provisional 0093; US-0110]). “…The UE may determine, based on the one or more RACH parameters, a time-frequency resource and/or an uplink transmit power…” (see Park [provisional 0152; US-0169]).).
It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combine the teachings of Karaki and Park to further describe types of energy saving configurations. Including Park’s teachings regarding the role of SSBs in energy saving configurations would increase the efficiency of radio resource utilization (see Park [provisional 0199; US-0230]).
Conclusion
The prior art made of record and not relied upon is considered pertinent to applicant's disclosure.
Zhou et al. (U.S. Patent Publication 2023/0199659): base stations performing power saving operations (e.g., [0341]), reducing SSBs while in energy-saving state (e.g., [0368]), dynamically adjusting SSBs (e.g., [0390]).
Yang et al. (U.S. Patent Publication 2021/0377887): deactivating/activating SSB between two network devices (e.g., abstract).
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.
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/ANGELA WIDHALM DE RODRIGUEZ/Examiner, Art Unit 2443
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