Cross-link interference management

Abstract

Various aspects of the present disclosure relate to cross-link interference (CLI) management. An apparatus, such as a radio access network (RAN) node, receives a first message from a RAN controller that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicating the subscription information is associated with interference management. The RAN node transmits a second message to the RAN controller indicating acceptance of the subscription information. The RAN node receives a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management. The RAN node transmits a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications. For example, the feedback includes a control acknowledgment message indicating the parameters are updated or a control failure indicating the parameters are not updated and / or are partially updated.

Description

CROSS-LINK INTERFERENCE MANAGEMENTRELATED APPLICATION

[0001] This application claims priority to U.S. Provisional Application Serial No. 63 / 623,098 filed January 19, 2024, entitled “CROSS-LINK INTERFERENCE MANAGEMENT,” the disclosure of which is incorporated by reference herein in its entirety.TECHNICAL FIELD

[0002] The present disclosure relates to wireless communications, and more specifically to interference management.BACKGROUND

[0003] A wireless communications system may include one or more network communication devices, such as base stations, which may support wireless communications for one or more user communication devices, which may be otherwise known as user equipment (UE), or other suitable terminology. The wireless communications system may support wireless communications with one or more user communication devices by utilizing resources of the wireless communication system (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers, or the like)). Additionally, the wireless communications system may support wireless communications across various radio access technologies including third generation (3G) radio access technology, fourth generation (4G) radio access technology, fifth generation (5G) radio access technology, among other suitable radio access technologies beyond 5G (e.g., sixth generation (6G)).SUMMARY

[0004] An article “a” before an element is unrestricted and understood to refer to “at least one” of those elements or “one or more” of those elements. The terms “a,” “at least one,” “one or more,” and “at least one of one or more” may be interchangeable. As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of’ or “one or more of’ or “one or both of’) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (e.g., A and B and C). Also,as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on”. Further, as used herein, including in the claims, a “set” may include one or more elements.

[0005] Some implementations of the method and apparatuses described herein may further include a radio access network (RAN) node for wireless communication to receive, from a RAN controller, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management, transmit, to the RAN controller, a second message that indicates an acceptance of the subscription information, receive, from the RAN controller, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management, and transmit, to the RAN controller, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

[0006] In some implementations of the method and apparatuses described herein, the RAN node performs the wireless communications based on updating the at least one parameter for the wireless communications, where the feedback includes a control acknowledge message indicating that the at least one parameter for the wireless communications is updated. The control acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one or more communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications. The RAN node performs the wireless communications based on partially updating the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating that the at least one parameter for the wireless communications is partially updated. The control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to the partially updated at least one parameter for the wireless communications, one or more communicationchannels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications.

[0007] In some implementations of the method and apparatuses described herein, the RAN node performs the wireless communications based on maintaining the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating the at least one parameter for the wireless communications is maintained. To perform the wireless communications based on maintaining the at least one parameter, the RAN node determines the update to the at least one parameter for the wireless communications fails to satisfy a threshold value associated with the at least one parameter for the wireless communications. The RAN node transmits, to the RAN controller, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resources corresponding to the update to the at least one parameter for the wireless communications. The RAN node updates the at least one parameter for the wireless communications according to a time period. The time period includes at least one of a delay prior to updating the at least one parameter for the wireless communications or duration for applying the update to the at least one parameter for the wireless communications. The RAN node receives, from the RAN controller, a fifth message that triggers cancelation of the update to the at least one parameter for the wireless communications, where the time period is based on the fifth message. The RAN node gradually reverses the update to the at least one parameter for the wireless communications during the time period.

[0008] In some implementations of the method and apparatuses described herein, the RAN node transmits, to the RAN controller and prior to receiving the first message, a fifth message indicating one or more of a capability of the RAN node corresponding to the interference management. The RAN node transmits, to the RAN controller and prior to receiving the first message, a fifth message based on a measured cross-link interference (CLI) value satisfying a threshold value. The CLI value includes at least one of a reference signal received power (RSRP), a received signal strength indicator (RSSI), a signal to interference plus noise ratio (SINR), or a reference signal receivedquality (RSRQ). The fifth message includes a value indicating a type of the fifth message is a report type associated with a CLI measurement procedure, and where the fifth message is associated with the CLI measurement procedure. The RAN node activates, based on transmitting the fifth message, one or more timers associated with suspending a CLI measurement procedure and suspends the CLI measurement procedure until expiry of the one or more timers. The RAN node receives a sixth message that indicates the one or more timers, and where a value of the one or more timers corresponds to respective parameters associated with the CLI measurement procedure. The RAN node at least partially resumes the CLI measurement procedure upon expiry of the one or more timers. The RAN node terminates the CLI measurement procedure upon expiry of the one or more timers. The RAN node suspends the CLI measurement procedure upon expiry of the one or more timers until detecting a trigger to resume the CLI measurement procedure. The one or more timers include one or more time-to-wait timers. The fifth message includes a value indicating a type of the fifth message is an insert type associated with the interference management.

[0009] In some implementations of the method and apparatuses described herein, the at least one parameter for the wireless communications includes a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, a synchronization signal block (SSB) index, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a transmission configuration indicator (TCI), a transmission direction, or one or more communication resources for the wireless communications. The third message includes at least one of an indication that a CLI value satisfies a threshold value, a beam indication, a communication resource indication, or an indication that the third message includes a control request associated with a control service. The at least one parameter indicative of the subscription information being associated with the interference management includes a value indicating a type of the first message is a control type associated with the interference management. The RAN node includes a base station, a central unit (CU), a distributed unit (DU), an E2 node, or an 01 node, and where the RAN controller includes a RAN intelligent controller (RIC), a near-real- time RIC, or a non-real-time RIC.

[0010] Some implementations of the method and apparatuses described herein may further include a processor for wireless communication to receive, from a RAN controller, a first messagethat indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management, transmit, to the RAN controller, a second message that indicates an acceptance of the subscription information, receive, from the RAN controller, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management, and transmit, to the RAN controller, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

[0011] In some implementations of the method and apparatuses described herein, the processor performs the wireless communications based on updating the at least one parameter for the wireless communications, where the feedback includes a control acknowledge message indicating that the at least one parameter for the wireless communications is updated. The control acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one or more communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications. The processor performs the wireless communications based on partially updating the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating that the at least one parameter for the wireless communications is partially updated. The control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to the partially updated at least one parameter for the wireless communications, one or more communication channels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications.

[0012] In some implementations of the method and apparatuses described herein, the processor performs the wireless communications based on maintaining the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating the at least one parameter for the wireless communications is maintained. To perform the wireless communications based on maintaining the at least one parameter, the processor determines theupdate to the at least one parameter for the wireless communications fails to satisfy a threshold value associated with the at least one parameter for the wireless communications. The processor transmits, to the RAN controller, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resources corresponding to the update to the at least one parameter for the wireless communications.

[0013] In some implementations of the method and apparatuses described herein, the processor updates the at least one parameter for the wireless communications according to a time period. The time period includes at least one of a delay prior to updating the at least one parameter for the wireless communications or duration for applying the update to the at least one parameter for the wireless communications. The processor receives, from the RAN controller, a fifth message that triggers cancelation of the update to the at least one parameter for the wireless communications, where the time period is based on the fifth message. The processor gradually reverses the update to the at least one parameter for the wireless communications during the time period. The processor transmits, to the RAN controller and prior to receiving the first message, a fifth message indicating one or more of a capability of the processor corresponding to the interference management. The processor transmits, to the RAN controller and prior to receiving the first message, a fifth message based on a measured CLI value satisfying a threshold value. The CLI value comprises at least one of an RSRP, an RSSI, an SINR, or an RSRQ. The fifth message includes a value indicating a type of the fifth message is a report type associated with a CLI measurement procedure, and wherein the fifth message is associated with the CLI measurement procedure. The processor activates, based on transmitting the fifth message, one or more timers associated with suspending a CLI measurement procedure and suspends the CLI measurement procedure until expiry of the one or more timers. The processor receives a sixth message that indicates the one or more timers, and where a value of the one or more timers corresponds to respective parameters associated with the CLI measurement procedure. The processor at least partially resumes the CLI measurement procedure upon expiry of the one or more timers. The processor terminates the CLI measurement procedure upon expiry of the one or more timers. The processor suspends the CLI measurement procedure upon expiry of theone or more timers until detecting a trigger to resume the CLI measurement procedure. The one or more timers include one or more time-to-wait timers. The fifth message includes a value indicating a type of the fifth message is an insert type associated with the interference management.

[0014] In some implementations of the method and apparatuses described herein, the at least one parameter for the wireless communications includes a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, an SSB index, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a TCI, a transmission direction, or one or more communication resources for the wireless communications. The third message includes at least one of an indication that a CLI value satisfies a threshold value, a beam indication, a communication resource indication, or an indication that the third message includes a control request associated with a control service. The at least one parameter indicative of the subscription information being associated with the interference management includes a value indicating a type of the first message is a control type associated with the interference management. The processor is associated with a base station, a CU, a DU, an E2 node, or an 01 node, and where the RAN controller includes a RIC, a near-real-time RIC, or a non-real-time RIC.

[0015] Some implementations of the method and apparatuses described herein may further include a method performed by a RAN node, the method including receiving, from a RAN controller, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management, transmitting, to the RAN controller, a second message that indicates an acceptance of the subscription information, receiving, from the RAN controller, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management, and transmitting, to the RAN controller, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

[0016] In some implementations of the method and apparatuses described herein, the method further includes performing the wireless communications based on updating the at least one parameter for the wireless communications, where the feedback includes a control acknowledge message indicating that the at least one parameter for the wireless communications is updated. Thecontrol acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one or more communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications. The method further includes performing the wireless communications based on partially updating the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating that the at least one parameter for the wireless communications is partially updated. The control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to the partially updated at least one parameter for the wireless communications, one or more communication channels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications. The method further includes performing the wireless communications based on maintaining the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating the at least one parameter for the wireless communications is maintained. Performing the wireless communications based on maintaining the at least one parameter further includes determining the update to the at least one parameter for the wireless communications fails to satisfy a threshold value associated with the at least one parameter for the wireless communications.

[0017] In some implementations of the method and apparatuses described herein, the method further includes transmitting, to the RAN controller, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resources corresponding to the update to the at least one parameter for the wireless communications. The method further includes updating the at least one parameter for the wireless communications according to a time period. The time period includes at least one of a delay prior to updating the atleast one parameter for the wireless communications or duration for applying the update to the at least one parameter for the wireless communications. The method further includes receiving, from the RAN controller, a fifth message that triggers cancelation of the update to the at least one parameter for the wireless communications, where the time period is based on the fifth message. The method further includes gradually reversing the update to the at least one parameter for the wireless communications during the time period.

[0018] In some implementations of the method and apparatuses described herein, the method further includes transmitting, to the RAN controller and prior to receiving the first message, a fifth message indicating one or more of a capability of the RAN node corresponding to the interference management. The method further includes transmitting, to the RAN controller and prior to receiving the first message, a fifth message based on a measured CLI value satisfying a threshold value. The CLI value comprises at least one of an RSRP, an RSSI, an SINR, or an RSRQ. The fifth message includes a value indicating a type of the fifth message is a report type associated with a CLI measurement procedure, and where the fifth message is associated with the CLI measurement procedure. The method further includes activating, based on transmitting the fifth message, one or more timers associated with suspending a CLI measurement procedure and suspending the CLI measurement procedure until expiry of the one or more timers. The method further includes receiving a sixth message that indicates the one or more timers, and where a value of the one or more timers corresponds to respective parameters associated with the CLI measurement procedure. The method further includes at least partially resuming the CLI measurement procedure upon expiry of the one or more timers. The method further includes terminating the CLI measurement procedure upon expiry of the one or more timers. The method further includes suspending the CLI measurement procedure upon expiry of the one or more timers until detecting a trigger to resume the CLI measurement procedure. The one or more timers include one or more time-to-wait timers. The fifth message includes a value indicating a type of the fifth message is an insert type associated with the interference management.

[0019] In some implementations of the method and apparatuses described herein, the at least one parameter for the wireless communications includes a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, an SSBindex, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a TCI, a transmission direction, or one or more communication resources for the wireless communications. The third message includes at least one of an indication that a CLI value satisfies a threshold value, a beam indication, a communication resource indication, or an indication that the third message includes a control request associated with a control service. The at least one parameter indicative of the subscription information being associated with the interference management includes a value indicating a type of the first message is a control type associated with the interference management. The RAN node includes a base station, a CU, a DU, an E2 node, or an 01 node, and where the RAN controller includes a RIC, a near-real-time RIC, or a non-real-time RIC.

[0020] Some implementations of the method and apparatuses described herein may further include a RAN controller for wireless communication to transmit, to a RAN node, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management, receive, from the RAN node, a second message that indicates an acceptance of the subscription information, transmit, to the RAN node, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management, and receive, from the RAN node, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

[0021] In some implementations of the method and apparatuses described herein, the feedback includes a control acknowledge message indicating that the at least one parameter for the wireless communications is updated. The control acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one or more communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications. The feedback includes a control failure message indicating that the at least one parameter for the wireless communications is partially updated. The control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to the partially updated at least one parameter for the wireless communications, one or morecommunication channels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications. The feedback includes a control failure message indicating the at least one parameter for the wireless communications is maintained. The RAN controller receives, from the RAN node, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resources corresponding to the update to the at least one parameter for the wireless communications. The RAN controller transmits, to the RAN node, a fifth message that triggers cancelation of the update to the at least one parameter, where a time period for applying the update to the at least one parameter for the wireless communications is based on the fifth message.

[0022] In some implementations of the method and apparatuses described herein, the RAN controller receives, from the RAN node and prior to transmitting the first message, a fifth message indicating one or more of a capability of the RAN node corresponding to the interference management. The RAN controller receives, from the RAN node and prior to transmitting the first message, a fifth message based on a measured CLI value satisfying a threshold value. The CLI value comprises at least one of an RSRP, an RSSI, an SINR, or an RSRQ. The fifth message includes a value indicating a type of the fifth message is a report type associated with a CLI measurement procedure, and where the fifth message is associated with the CLI measurement procedure. The fifth message indicating a suspension of a CLI measurement procedure based on one or more timers. The RAN controller transmits a sixth message that indicates the one or more timers, and where a value of the one or more timers corresponds to respective parameters associated with the CLI measurement procedure. The one or more timers include one or more time-to-wait timers. The fifth message includes a value indicating a type of the fifth message is an insert type associated with the interference management.

[0023] In some implementations of the method and apparatuses described herein, the at least one parameter for the wireless communications includes a transmission power for the wireless communications, a sequence of transmission power reduction values for the wirelesscommunications, a sequence of transmission powers for the wireless communications, an SSB index, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a TCI, a transmission direction, or one or more communication resources for the wireless communications. The third message includes at least one of an indication that a CLI value satisfies a threshold value, a beam indication, a communication resource indication, or an indication that the third message includes a control request associated with a control service. The at least one parameter indicative of the subscription information being associated with the interference management includes a value indicating a type of the first message is a control type associated with the interference management. The RAN node includes a base station, a CU, a DU, an E2 node, or an 01 node, and where the RAN controller includes a RIC, a near-real-time RIC, or a non-real-time RIC.

[0024] Some implementations of the method and apparatuses described herein may further include a method performed by a RAN controller, the method including transmitting, to a RAN node, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management, receiving, from the RAN node, a second message that indicates an acceptance of the subscription information, transmitting, to the RAN node, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management, and receiving, from the RAN node, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

[0025] In some implementations of the method and apparatuses described herein, the feedback includes a control acknowledge message indicating that the at least one parameter for the wireless communications is updated. The control acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one or more communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications. The feedback includes a control failure message indicating that the at least one parameter for the wireless communications is partially updated. The control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to thepartially updated at least one parameter for the wireless communications, one or more communication channels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications. The feedback includes a control failure message indicating the at least one parameter for the wireless communications is maintained.

[0026] In some implementations of the method and apparatuses described herein, the method further includes receiving, from the RAN node, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resources corresponding to the update to the at least one parameter for the wireless communications. The method further includes transmitting, to the RAN node, a fifth message that triggers cancelation of the update to the at least one parameter, where a time period for applying the update to the at least one parameter for the wireless communications is based on the fifth message. The method further includes receiving, from the RAN node and prior to transmitting the first message, a fifth message indicating one or more of a capability of the RAN node corresponding to the interference management. The method further includes receiving, from the RAN node and prior to transmitting the first message, a fifth message based on a measured CLI value satisfying a threshold value. The CLI value comprises at least one of an RSRP, an RSSI, an SINR, or an RSRQ. The fifth message includes a value indicating a type of the fifth message is a report type associated with a CLI measurement procedure, and where the fifth message is associated with the CLI measurement procedure. The fifth message indicating a suspension of a CLI measurement procedure based on one or more timers. The method further includes transmitting a sixth message that indicates the one or more timers, and where a value of the one or more timers corresponds to respective parameters associated with the CLI measurement procedure. The one or more timers include one or more time- to-wait timers. The fifth message includes a value indicating a type of the fifth message is an insert type associated with the interference management.

[0027] In some implementations of the method and apparatuses described herein, the at least one parameter for the wireless communications includes a transmission power for the wirelesscommunications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, an SSB index, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a TCI, a transmission direction, or one or more communication resources for the wireless communications. The third message includes at least one of an indication that a CLI value satisfies a threshold value, a beam indication, a communication resource indication, or an indication that the third message includes a control request associated with a control service. The at least one parameter indicative of the subscription information being associated with the interference management includes a value indicating a type of the first message is a control type associated with the interference management. The RAN node includes a base station, a CU, a DU, an E2 node, or an 01 node, and where the RAN controller includes a RIC, a near-real-time RIC, or a non-real-time RIC.BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figures 1 and 2 illustrate examples of wireless communications systems in accordance with aspects of the present disclosure.

[0029] Figure 3 illustrates an example of a RAN architecture diagram, in accordance with aspects of the present disclosure.

[0030] Figure 4 illustrates an example of a RAN layer diagram, in accordance with aspects of the present disclosure.

[0031] Figures 5 through 11 illustrate examples of signaling diagrams, in accordance with aspects of the present disclosure.

[0032] Figure 12 illustrates an example of a RAN node in accordance with aspects of the present disclosure.

[0033] Figure 13 illustrates an example of a processor in accordance with aspects of the present disclosure.

[0034] Figure 14 illustrates an example of a RAN controller in accordance with aspects of the present disclosure.

[0035] Figure 15 illustrates a flowchart of a method performed by a RAN node in accordance with aspects of the present disclosure.

[0036] Figure 16 illustrates a flowchart of a method performed by a RAN controller in accordance with aspects of the present disclosure.DETAILED DESCRIPTION

[0037] A wireless communications system may implement a framework including one or more devices and interfaces supporting exchange of signaling for a RAN. For example, the framework may include one or more RAN nodes communicating with a RAN controller via one or more wired or wireless interfaces. A RAN node may include a base station, a CU of a base station, and / or a DU of a base station. A RAN controller may include a near-real time RIC and / or a non-real time RIC. The RAN controller may exchange signaling with the one or more RAN nodes via the one or more wired or wireless interfaces. The interfaces may include an E2 interface or an 01 interface (e.g., for an open-RAN (0-RAN) framework). An E2 interface provides for communication (e.g., signaling) between the near-real-time RIC and one or more of the RAN nodes, while the 02 interface provides for communication (e.g., signaling) between the non-real-time RIC and one or more RAN nodes, which is described in further detail with respect to Figure 3.

[0038] A UE and a RAN node can transmit or receive signaling using communication resources. For example, the UE and / or the RAN node may split (e.g., allocate, distribute) communication resources between uplink transmissions and downlink transmissions in the time domain, which may be referred to as a TDD communication scheme. In the TDD communication scheme, transmission and reception of signals occur at different times within a same frequency band. Different time resources within a transmission frame, which may be referred to as time slots and may be further divided into symbols, may be allocated to uplink and / or downlink transmissions. In some examples, the uplink and downlink resource allocation are synchronized across RAN nodes to avoid interference from one RAN node (e.g., when transmitting a downlink transmission) to another nearby RAN node (e.g., when receiving an uplink transmission). However, if one or more RAN nodes use techniques for dynamic allocation of uplink and downlink resources, then the transmissions to and from different RAN nodes may cause interference. Interference at a device (e.g., the RAN node and / or a UE) that is caused by another device (e.g., another RAN node and / oranother UE) may be referred to as CLI. For example, a RAN node may be transmitting signaling with a transmission beam that is spatially directed towards a nearby RAN node while the nearby RAN node is receiving different signaling in a same frequency band. The other RAN node may receive a portion of the signaling transmitted by the RAN node when receiving the different signaling, which may degrade the signal quality of the received signaling and may cause high signaling overhead and inefficient use of communication resources due to retransmissions resulting from communication errors caused by the interference.

[0039] To reduce latency and provide for greater signaling throughput, the RAN nodes and / or the UEs may implement SBFD operation. SBFD operation provides for a frequency band to be split into sub-bands for concurrent transmission and reception within a same time slot or using the same symbols. For example, a RAN node may receive uplink signaling from one or more UEs using a sub-band of a frequency band, while another RAN node concurrently (e.g., within a same duration of symbols or within a same slot) transmits downlink signaling to one or more UEs using a different sub-band of the frequency band. SBFD operation might induce additional interference between RAN nodes if a RAN node transmits downlink signaling with a transmission beam directed spatially towards another RAN node while the other RAN node is receiving uplink signaling on the same time-frequency resources. The interference caused by SBFD operation may lead to high signaling overhead and inefficient use of communication resources due to retransmission resulting from transmission, reception, and / or decoding errors caused by the interference.

[0040] As described herein, to reduce interference in a wireless communications system, such as CEI, a RAN controller may exchange signaling with one or more RAN nodes to coordinate CEI measurement and CEI management at the one or more RAN nodes. For example, a RAN controller may transmit a message indicating subscription information to a RAN node. The subscription information may include at least one parameter for wireless communications and a parameter that indicates the subscription information is for interference management. The parameters for wireless communications may include a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, an SSB index, a reference signal identifier, a reference signal resource indicator, a QCE relationship, a TCI, a transmission direction, and / or one or more communication resources for the wireless communications. The RAN node may receive aninterference management indication including a request for the RAN node to update at least one parameter for wireless communications (e.g., to reduce interference at another node and / or for signaling at one or more UEs). The RAN node may evaluate the parameters and transmit a message to the RAN controller indicating whether the RAN node applied the updates to the parameters for wireless communications. For example, RAN node may transmit a control acknowledge message indicating the parameters are updated for the wireless communications. In some other examples, the RAN node may transmit a control failure message based on the RAN node failing to update (e.g., maintaining) the values of the parameters for the wireless communications.

[0041] Aspects of the present disclosure are described in the context of a wireless communications system.

[0042] Figure 1 illustrates an example of a wireless communications system 100 in accordance with aspects of the present disclosure. The wireless communications system 100 may include one or more network equipment (NE) 102, one or more UE 104, and a core network (CN) 106. The wireless communications system 100 may support various radio access technologies. In some implementations, the wireless communications system 100 may be a 4G network, such as an LTE network or an LTE- Advanced (LTE-A) network. In some other implementations, the wireless communications system 100 may be a NR network, such as a 5G network, a 5G- Advanced (5G-A) network, or a 5G ultrawideband (5G-UWB) network. In other implementations, the wireless communications system 100 may be any combination of a 4G network and a 5G network, or other suitable radio access technology including Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20. The wireless communications system 100 may support radio access technologies beyond 5G, for example, 6G. Additionally, the wireless communications system 100 may support technologies, such as time division multiple access (TDMA), frequency division multiple access (FDMA), or code division multiple access (CDMA), etc.

[0043] The one or more NE 102 may be dispersed throughout a geographic region to form the wireless communications system 100. One or more of the NE 102 described herein may be or include or may be referred to as a network node, a base station, a network element, a network function, a network entity, a RAN, a NodeB, an eNodeB (eNB), a next-generation NodeB (gNB), or other suitable terminology. An NE 102 and a UE 104 may communicate via a communication link,which may be a wireless or wired connection (e.g., interface). For example, an NE 102 and a UE 104 may perform wireless communication (e.g., receive signaling, transmit signaling) over a Uu interface, which may be an examples of a wireless or over the air interface. A wired interface may include a physical connection between one or more devices, such as an ethernet cable or a fiberoptic cable, among other examples.

[0044] An NE 102 may provide a geographic coverage area for which the NE 102 may support services for one or more UEs 104 within the geographic coverage area. For example, an NE 102 and a UE 104 may support wireless communication of signals related to services (e.g., voice, video, packet data, messaging, broadcast, etc.) according to one or more radio access technologies. In some implementations, an NE 102 may be moveable, for example, a satellite associated with a non-terrestrial network (NTN). In some implementations, different geographic coverage areas associated with the same or different radio access technologies may overlap, but the different geographic coverage areas may be associated with different NE 102.

[0045] The one or more UEs 104 may be dispersed throughout a geographic region of the wireless communications system 100. A UE 104 may include or may be referred to as a remote unit, a mobile device, a wireless device, a remote device, a subscriber device, a transmitter device, a receiver device, or some other suitable terminology. In some implementations, the UE 104 may be referred to as a unit, a station, a terminal, or a client, among other examples. Additionally, or alternatively, the UE 104 may be referred to as an Internet-of-Things (loT) device, an Internet-of- Everything (loE) device, or machine-type communication (MTC) device, among other examples.

[0046] A UE 104 may be able to support wireless communication directly with other UEs 104 over a communication link. For example, a UE 104 may support wireless communication directly with another UE 104 over a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular-V2X deployments, the communication link may be referred to as a sidelink. For example, a UE 104 may support wireless communication directly with another UE 104 over a PC5 interface.

[0047] An NE 102 may support communications with the CN 106, or with another NE 102, or both. For example, an NE 102 may interface with other NE 102 or the CN 106 through one or more backhaul links (e.g., SI, N2, N6, or another network interface). In some implementations, the NE 102 may communicate with each other directly. In some other implementations, the NE 102 may communicate with each other indirectly (e.g., via the CN 106). In some implementations, one ormore NE 102 may include subcomponents, such as an access network entity, which may be an example of an access node controller (ANC). An ANC may communicate with the one or more UEs 104 through one or more other access network transmission entities, which may be referred to as a radio heads, smart radio heads, or transmission-reception points (TRPs).

[0048] The CN 106 may support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. The CN 106 may be an evolved packet core (EPC), or a 5G core (5GC), which may include a control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management functions (AMF)) and a user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)). In some implementations, the control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management (e.g., data bearers, signal bearers, etc.) for the one or more UEs 104 served by the one or more NE 102 associated with the CN 106.

[0049] The CN 106 may communicate with a packet data network over one or more backhaul links (e.g., via an SI, N2, N6, or another network interface). The packet data network may include an application server. In some implementations, one or more UEs 104 may communicate with the application server. A UE 104 may establish a session (e.g., a protocol data unit (PDU) session, or the like) with the CN 106 via an NE 102. The CN 106 may route traffic (e.g., control information, data, and the like) between the UE 104 and the application server using the established session (e.g., the established PDU session). The PDU session may be an example of a logical connection between the UE 104 and the CN 106 (e.g., one or more network functions of the CN 106).

[0050] In the wireless communications system 100, the NEs 102 and the UEs 104 may use resources of the wireless communications system 100 (e.g., time resources (e.g., symbols, slots, subframes, frames, or the like) or frequency resources (e.g., subcarriers, carriers)) to perform various operations (e.g., wireless communications). In some implementations, the NEs 102 and the UEs 104 may support different resource structures. For example, the NEs 102 and the UEs 104 may support different frame structures. In some implementations, such as in 4G, the NEs 102 and the UEs 104 may support a single frame structure. In some other implementations, such as in 5G and among other suitable radio access technologies, the NEs 102 and the UEs 104 may support variousframe structures (e.g., multiple frame structures). The NEs 102 and the UEs 104 may support various frame structures based on one or more numerologies.

[0051] One or more numerologies may be supported in the wireless communications system 100, and a numerology may include a subcarrier spacing and a cyclic prefix. A first numerology (e.g., / r=0) may be associated with a first subcarrier spacing (e.g., 15 kilohertz (kHz)) and a normal cyclic prefix. In some implementations, the first numerology (e.g., / r=0) associated with the first subcarrier spacing (e.g., 15 kHz) may utilize one slot per subframe. A second numerology (e.g., / r=l) may be associated with a second subcarrier spacing (e.g., 30 kHz) and a normal cyclic prefix. A third numerology (e.g., / r=2) may be associated with a third subcarrier spacing (e.g., 60 kHz) and a normal cyclic prefix or an extended cyclic prefix. A fourth numerology (e.g., / r=3) may be associated with a fourth subcarrier spacing (e.g., 120 kHz) and a normal cyclic prefix. A fifth numerology (e.g., / r=4) may be associated with a fifth subcarrier spacing (e.g., 240 kHz) and a normal cyclic prefix.

[0052] A time interval of a resource (e.g., a communication resource) may be organized according to frames (also referred to as radio frames). Each frame may have a duration, for example, a 10 millisecond (ms) duration. In some implementations, each frame may include multiple subframes. For example, each frame may include 10 subframes, and each subframe may have a duration, for example, a 1 ms duration. In some implementations, each frame may have the same duration. In some implementations, each subframe of a frame may have the same duration.

[0053] Additionally, or alternatively, a time interval of a resource (e.g., a communication resource) may be organized according to slots. For example, a subframe may include a number (e.g., quantity) of slots. The number of slots in each subframe may also depend on the one or more numerologies supported in the wireless communications system 100. For instance, the first, second, third, fourth, and fifth numerologies (e.g., / r=0, jU=l, / r=2, / r=3, / r=4) associated with respective subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz may utilize a single slot per subframe, two slots per subframe, four slots per subframe, eight slots per subframe, and 16 slots per subframe, respectively. Each slot may include a number (e.g., quantity) of symbols (e.g., OFDM symbols). In some implementations, the number (e.g., quantity) of slots for a subframe may depend on a numerology. For a normal cyclic prefix, a slot may include 14 symbols. For an extended cyclic prefix (e.g., applicable for 60 kHz subcarrier spacing), a slot may include 12 symbols. The relationship between the number of symbols per slot, the number of slots per subframe, and thenumber of slots per frame for a normal cyclic prefix and an extended cyclic prefix may depend on a numerology. It should be understood that reference to a first numerology (e.g., / r=0) associated with a first subcarrier spacing (e.g., 15 kHz) may be used interchangeably between subframes and slots.

[0054] In the wireless communications system 100, an electromagnetic (EM) spectrum may be split, based on frequency or wavelength, into various classes, frequency bands, frequency channels, etc. By way of example, the wireless communications system 100 may support one or more operating frequency bands, such as frequency range designations frequency range 1 (FR1) (410 MHz - 7.125 gigahertz (GHz)), frequency range 2 (FR2) (24.25 GHz - 52.6 GHz), frequency range 3 (FR3) (7.125 GHz - 24.25 GHz), frequency range 4 (FR4) (52.6 GHz - 114.25 GHz), FR4a or FR4-1 (52.6 GHz - 71 GHz), and frequency range 5 (FR5) (114.25 GHz - 300 GHz). In some implementations, the NEs 102 and the UEs 104 may perform wireless communications over one or more of the operating frequency bands. In some implementations, FR1 may be used by the NEs 102 and the UEs 104, among other equipment or devices for cellular communications traffic (e.g., control information, data). In some implementations, FR2 may be used by the NEs 102 and the UEs 104, among other equipment or devices for short-range, high data rate capabilities.

[0055] FR1 may be associated with one or more numerologies (e.g., at least three numerologies). For example, FR1 may be associated with a first numerology (e.g., / r=0), which includes 15 kHz subcarrier spacing; a second numerology (e.g., / r=l), which includes 30 kHz subcarrier spacing; and a third numerology (e.g., / r=2), which includes 60 kHz subcarrier spacing. FR2 may be associated with one or more numerologies (e.g., at least 2 numerologies). For example, FR2 may be associated with a third numerology (e.g., / r=2), which includes 60 kHz subcarrier spacing; and a fourth numerology (e.g., / r=3), which includes 120 kHz subcarrier spacing.

[0056] In some examples, the terms antenna, panel, and antenna panel are used interchangeably. An antenna panel may include hardware that is used for transmitting and / or receiving radio signals at frequencies lower than 6 GHz (e.g., FR1), or higher than 6 GHz (e.g., FR2 or millimeter wave (mmWave)). In some examples, an antenna panel may include an array of antenna elements, where an antenna element is connected to hardware such as a phase shifter that allows a control module to apply spatial parameters for transmission and / or reception of signals. The resulting radiation pattern may be called a beam, which may or may not be unimodal and may allow the device (e.g., UE 104, node) to amplify signals that are transmitted or received from one or more spatial directions.

[0057] In some examples, an antenna panel may or may not be virtualized as an antenna port. An antenna panel may be connected to a baseband processing module through a radio frequency (RF) chain for each of transmission (egress) and reception (ingress) directions. A capability of a device in terms of the number of antenna panels, duplexing capabilities, beamforming capabilities, and so on, may or may not be transparent to other devices. In some examples, capability information may be communicated via signaling or, in some examples, capability information may be provided to devices without signaling. In the case that such information is available to other devices, such as a CU, the information can be used for signaling or local decision making.

[0058] In some examples, an antenna panel may be a physical or logical antenna array including a set of antenna elements or antenna ports that share a common or a significant portion of an RF chain (e.g., in-phase / quadrature (I / Q) modulator, analog to digital (A / D) converter, local oscillator, phase shift network). The antenna panel may be a logical entity with physical antennas mapped to the logical entity. The mapping of physical antennas to the logical entity may be up to implementation. Communicating (e.g., receiving or transmitting) on at least a subset of antenna elements or antenna ports active for radiating energy, also referred to herein as active elements, of an antenna panel includes biasing or powering on of an RF chain, which results in current drain or power consumption at the device (e.g., node) associated with the antenna panel (including power amplifier / low noise amplifier (LNA) power consumption associated with the antenna elements or antenna ports). The phrase “active for radiating energy,” as used herein, is not meant to be limited to a transmit function but also encompasses a receive function. Accordingly, an antenna element that is active for radiating energy may be coupled to a transmitter to transmit RF energy or to a receiver to receive RF energy, either simultaneously or sequentially, or may be coupled to a transceiver in general, for performing an intended functionality. Communicating on the active elements of an antenna panel enables generation of radiation patterns or beams.

[0059] In some examples, depending on implementation, a “panel” can have at least one of the following functionalities as an operational role of Unit of antenna group to control a transmit beam independently, Unit of antenna group to control its transmission power independently, Unit of antenna group to control a transmission timing independently. The “panel” may be transparent to another node (e.g., next hop neighbor node). For one or more conditions, another node or network entity (e.g., NE 102) can determine a mapping between physical antennas of a device to the logical entity “panel” is not changed. For example, the condition may include until the next update orreport from device or include a duration of time over which the network entity determines there is no change to the mapping. The device may report a capability with respect to the “panel” to the network entity. The device capability may include at least the number of “panels.” In some implementations, the device may support transmission from one beam within a panel, with multiple panels, more than one beam (e.g., one beam per panel) may be used for transmission. In some other examples, more than one beam per panel may be supported and / or used for transmission.

[0060] In some examples, an antenna port is defined, such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed. Two antenna ports are quasi co-located (QCL) if one or more large- scale properties of the channel over which a symbol on one antenna port is conveyed can be inferred from the channel over which a symbol on the other antenna port is conveyed. The large-scale properties include, but are not limited to, one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial receive parameters. Two antenna ports may be QCL with respect to a subset of the large-scale properties and different subset of large-scale properties may be indicated by a QCL type. The QCL type can indicate which channel properties are the same between the two reference signals (e.g., on the two antenna ports). Thus, the reference signals can be linked to each other with respect to what the device can assume about their channel statistics or QCL properties. For example, QCL type may be defined based on combination of one or large-scale properties, including, but not limited to, QCL-TypeA, QCL-TypeB, QCL-TypeC, and QCL-TypeD. QCL-TypeA may include a Doppler shift, Doppler spread, average delay, and / or delay spread. QCL-TypeB may include Doppler shift and / or Doppler spread. QCL-TypeC may include Doppler shift and / or average delay. QCL-TypeD may include Spatial receive or reception parameters.Spatial receive or reception parameters may include one or more of an angle of arrival (AoA), Dominant AoA, average AoA, angular spread, Power Angular Spectrum (PAS) of AoA, average angle of departure (AoD), PAS of AoD, transmit and / or receive channel correlation, transmit and / or receive beamforming, spatial channel correlation etc. The QCL-TypeA, QCL-TypeB and QCL- TypeC may be applicable for carrier frequencies, and the QCL-TypeD may be applicable in relatively high carrier frequencies (e.g., mmWave, FR2 and beyond), where the device may not be able to perform omni-directional transmission (e.g., the device forms beams for directional transmission). A QCL-TypeD between two reference signals A and B, the reference signal A is considered to be spatially co-located with reference signal B and the device may assume that thereference signals A and B can be received with the same spatial filter (e.g., with the same receive beamforming weights).

[0061] An “antenna port” may be a logical port that may correspond to a beam (e.g., resulting from beamforming) or may correspond to a physical antenna on a device. In some examples, a physical antenna may map directly to a single antenna port, in which an antenna port corresponds to an actual physical antenna. Additionally, or alternatively, a set or subset of physical antennas, or antenna set or antenna array or antenna sub-array, may be mapped to one or more antenna ports after applying complex weights, a cyclic delay, or both to the signal on each physical antenna. The physical antenna set may have antennas from a single module or panel or from multiple modules or panels. The weights may be fixed as in an antenna virtualization scheme, such as cyclic delay diversity (CDD). The procedure used to derive antenna ports from physical antennas may be specific to a device implementation and transparent to other devices.

[0062] In some cases, a transmission configuration indication (TCI)-state associated with a target transmission can indicate parameters for configuring a QCL relationship between the target transmission (e.g., target reference signal of demodulation reference signal (DMRS) ports of the target transmission during a transmission occasion) and one or more source reference signals (e.g., SSB, channel station information-reference signal (CSI-RS), and / or sounding reference signal (SRS)) with respect to QCL type parameters indicated in the corresponding TCI state. The TCI describes which reference signals are used as QCL source, and what QCL properties can be derived from each reference signal. A device can receive a configuration of a plurality of TCI states for a serving cell for transmissions on the serving cell (e.g., between a serving gNB and a smart repeater). In some examples, a TCI state includes at least one source reference signal to provide a reference (e.g., device assumption) for determining QCL and / or spatial filter.

[0063] In some cases, an uplink TCI state is provided if a device is configured with separate downlink and / or uplink TCI by radio resource control (RRC) signaling. The uplink TCI state may include a source reference signal which provides a reference for determining uplink spatial domain transmission filter for the uplink transmission (e.g., dynamic-grant or configured-grant based PUSCH, dedicated PUCCH resources) in a component carrier (CC) or across a set of configured CCs and / or bandwidth parts (BWPs). In some cases, a joint downlink and / or uplink TCI state is provided if the device is configured with joint downlink and / or uplink TCI by RRC signaling (e.g., configuration of joint TCI or separate downlink and / or uplink TCI is based on RRC signaling). Thejoint downlink and / or uplink TCI state refers to at least a common source reference signal used for determining both the downlink QCL information and the uplink spatial transmission filter. The source reference signal determined from the indicated joint (or common) TCI state provides QCL Type-D indication (e.g., for a device-dedicated physical downlink control channel (PDCCH) and / or physical downlink shared channel (PDSCH)) and is used to determine uplink spatial transmission filter (e.g., for UE-dedicated PUSCH and / or PUCCH) for a CC or across a set of configured CCs and / or BWPs. In some examples, the uplink spatial transmission filter is derived from the reference signal of downlink QCL Type D in the joint TCI state. The spatial setting of the uplink transmission may be according to the spatial relation with a reference to the source reference signal configured with QCL type set to ‘QCL-typeD’ in the joint TCI state.

[0064] In some cases, a spatial relation information associated with a target transmission can indicate parameters for configuring a spatial setting between the target transmission and a reference signal (e.g., SSB, CSLRS, and / or SRS). Lor example, the device may transmit the target transmission with the same spatial domain filter used for reception the reference signal (e.g., downlink reference signal including an SSB and / or CSLRS). In some other examples, the device may transmit the target transmission with the same spatial domain transmission filter used for the transmission of the reference signal (e.g., uplink reference signal including an SRS). A device can receive a configuration of a plurality of spatial relation information configurations for a serving cell for transmissions on the serving cell.

[0065] In some cases, an uplink TCI state is provided if a device is configured with separate downlink and / or uplink TCI by RRC signaling. The uplink TCI state may include a source reference signal, which provides a reference for determining uplink spatial domain transmission filter for the uplink transmission (e.g., dynamic-grant and / or configured-grant based PUSCH, dedicated PUCCH resources) in a CC or across a set of configured CCs and / or BWPs. In some cases, a joint downlink and / or uplink TCI state is provided if the device is configured with joint downlink and / or uplink TCI by RRC signaling (e.g., configuration of joint TCI or separate downlink and / or uplink TCI is based on RRC signaling). The joint downlink and / or uplink TCI state refers to at least a common source reference signal used for determining both the downlink QCL information and the uplink spatial transmission filter. The source reference signal determined from the indicated joint (or common) TCI state provides QCL Type-D indication (e.g., for device-dedicated PDCCH and / or PDSCH) and is used to determine uplink spatial transmission filter (e.g., for UE-dedicated PUSCHand / or PUCCH) for a CC or across a set of configured CCs and / or BWPs. In one example, the uplink spatial transmission filter is derived from the reference signal of downlink QCL Type D in the joint TCI state. The spatial setting of the uplink transmission may be according to the spatial relation with a reference to the source reference signal configured with QCL type set to ‘QCL- typeD’ in the joint TCI state.

[0066] According to implementations, one or more of the NEs 102 and the UEs 104 are operable to implement various aspects of the techniques described with reference to the present disclosure. Different NEs 102 may exchange signaling with UEs 104, causing CLI between the NEs 102, which is described in further detail with respect to Figure 2. In some examples, to reduce CLI between NEs 102 in the wireless communications system 100, a RAN controller at the CN 106 may initiate one or more subscription procedures at the NEs 102 (e.g., RAN nodes). The RAN controller may exchange signaling with one or more NEs 102 to coordinate CLI measurement and CLI management at the one or more NEs 102. For example, a RAN controller may transmit a message indicating subscription information to an NE 102. The subscription information may include at least one parameter for wireless communications and a parameter that indicates the subscription information is for interference management. The parameters for wireless communications may include a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, an SSB index, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a TCI, a transmission direction, and / or one or more communication resources for the wireless communications. The NE 102 may receive an interference management indication including a request for the NE 102 to update at least one parameter for wireless communications (e.g., to reduce interference at another node and / or for signaling at one or more UEs 104). The NE 102 may evaluate the parameters and transmit a message to the RAN controller indicating whether the NE 102 applied the updates to the parameters for wireless communications. For example, NE 102 may transmit a control acknowledge message indicating the parameters are updated for the wireless communications. In some other examples, the NE 102 may transmit a control failure message based on the NE 102 failing to update (e.g., maintaining) the values of the parameters for the wireless communications.

[0067] Figure 2 illustrates an example of a wireless communications system 200 in accordance with aspects of the present disclosure. In some examples, the wireless communications system 200implements aspects of the wireless communications system 100. For example, the wireless communications system 200 includes a UE 104-a, and a UE 104-b, and one or more CNs 106, which may be examples of UEs 104 and CNs 106 as described with reference to Figure 1. The wireless communications system 200 may also include a RAN node 202-a and a RAN node 202-b, where the RAN nodes may be examples of an NE 102 as described with reference to Figure 1, such as a base station, a CU of a base station, and / or a DU of a base station.

[0068] The UE 104-a may transmit signaling, including control signaling, data, or both, to a RAN node 202-a via an uplink wireless communications link 204. The RAN node 202-b may transmit signaling, including control signaling, data, or both, to a UE 104-b via a downlink wireless communications link 206. Although the wireless communications system 200 is illustrated as having two UEs and two RAN nodes, the wireless communications system 200 may include any numerical quantity of UEs, RAN nodes, and other wireless devices. In some examples, the RAN node 202-a and / or the RAN node 202-b may be wired or wirelessly connected to each other and / or to the CNs 106. The wired or wireless connections may be referred to as interfaces 208, or network interfaces. There may be one or more different types of interfaces 208, which is described in further detail with respect to Figure 3.

[0069] In some examples, the RAN node 202-a, the RAN node 202-b, the UE 104-a, and / or the UE 104-b may implement a TDD communications scheme. For example, the RAN node 202-a, the RAN node 202-b, the UE 104-a, and / or the UE 104-b may split one or more time domain communication resources into downlink resources and uplink resources. Downlink resources include one or more time resources (e.g., slots and / or symbols) that are allocated for communication from a UE to a RAN node or NE. Uplink resources include one or more time resources that are allocated for communication to a UE from a RAN node or NE. For a TDD communication scheme, at any point in time a RAN node (e.g., the RAN node 202-a and / or the RAN node 202-b) may transmit signaling using a defined frequency resource to a wireless device, including the UE 104-a and / or the UE 104-b, or vice-versa, but not both. That is, a RAN node may coordinate with a UE, such that the RAN node and the UE are not concurrently or simultaneously transmitting signaling (e.g., using a same time resource). Additionally, or alternatively, the RAN node may coordinate with another RAN node, such that the RAN nodes are not concurrently or simultaneously transmitting and / or receiving signaling. Interference at a RAN node may be caused by the RAN node receiving a portion of signaling from another RAN node sending a downlink transmission in anearby coverage area (e.g., cell). Conventional wireless communication systems may employ a static TDD communication scheme, in which patterns for transmitting according to the TDD communication scheme are synchronized across wireless devices (e.g., using identical patterns) to avoid interference at a RAN node that is receiving an uplink transmission. The pattern may include one or more uplink and / or downlink slot configurations that specify one or more symbols within the slot as allocated for an uplink transmission, allocated for a downlink transmission, or both, among other allocations.

[0070] In some examples, an atmospheric ducting phenomenon caused by lower densities at higher altitudes in the atmosphere cause a reduced refractive index, resulting in signals bending back towards Earth. A signal trapped in an atmospheric duct can reach distances greater than signals that are not trapped in the atmospheric duct. In TDD networks with a same uplink and / or downlink slot configuration, and in the absence of atmospheric ducting, a guard period is used to avoid the interference between uplink and downlink transmissions in different cells. A guard period is a time period, or delay, between transmission of symbols. However, when the atmospheric ducting phenomenon happens, radio signals can travel a relatively long distance (e.g., greater than a threshold distance), and the propagation delay may exceed the guard period. Consequently, the downlink signals of a RAN node 202-a may interfere with uplink signals of another RAN node 202- b that is relatively far away (e.g., greater than a threshold distance) from the RAN node 202-a. Such interference may be referred to as remote interference. The farther the RAN node 202-a is from the RAN node 202 -b, the more uplink symbols of the RAN node 202-b may be impacted.

[0071] A remote interference scenario may involve any numerical quantity of RAN nodes, where a RAN node may execute remote interference management (RIM) coordination. RAN nodes can be grouped into semi-static sets, where respective cells of the RAN nodes are assigned set IDs, and configured with a RIM reference signal (RIM-RS) and communication resources for the set ID. An interfering RAN node (e.g., a RAN node causing interference at another RAN node) can be configured with multiple set IDs and respective RAN nodes experiencing interference can be configured with multiple set IDs, where each cell may have at most one set ID for an interfering RAN node and one set ID for a RAN node that is interfered with. Consequently, a RAN node may be an interfering RAN node and may experience interference at a same time.

[0072] To mitigate, or reduce, remote interference, a network (e.g., the CNs 106) may enable RIM frameworks for coordination between RAN nodes. The coordination communication in RIMframeworks can be wireless-based and / or backhaul-based. The backhaul-based RIM framework uses any combination of wireless and backhaul communication, while in the wireless framework, the communication is wireless (e.g., over the air). Backhaul interfaces may be examples of wired interfaces. In both frameworks, RAN nodes that are being interfered with may simultaneously transmit an identical RIM reference signal carrying the set ID for the interfered RAN nodes over the air. In the wireless framework, upon reception of the RIM reference signal from the set for the interfered RAN nodes, interfering RAN nodes undertake RIM measures, and send back a RIM reference signal carrying the set ID for the interfering RAN nodes. The RIM reference signal sent by the interfering RAN node provides information regarding whether the atmospheric ducting phenomenon exists. The interfered RAN nodes may determine the atmospheric ducting phenomenon terminates if the interfered RAN node fails to receive a reference signal from an interfering RAN node.

[0073] In the RIM backhaul framework, upon reception of the RIM reference signal from the set for the interfering RAN nodes, interfering RAN nodes undertake RIM measures, and establish backhaul coordination towards RAN nodes that are experiencing interference. The backhaul messages are sent from individual interfering RAN nodes to individual RAN nodes experiencing the interference, where the signaling is transparent to the CNs 106. The RIM backhaul messages from the interfering RAN nodes to the RAN nodes experiencing the interference carry the indication about the detection or lack of detection of a RIM reference signal. Based on the indication from the backhaul message, the interfering RAN nodes determine whether the atmospheric ducting and the consequent remote interference have terminated. In both frameworks, upon determining that the atmospheric ducting has terminated, the RAN nodes that were experiencing the interference may cancel further transmissions of the RIM reference signal.

[0074] In some cases, one or more wireless communications systems may implement a dynamic TDD communication scheme. For a dynamic TDD communication scheme, different TDD patterns may be used by RAN nodes in different cells resulting in interference between an uplink transmission in a cell and a downlink transmission in another cell, which may be referred to as CLI 210. For example, if the RAN node 202-b and the UE 104-b are communicating using a TDD pattern that is different than a TDD pattern the RAN node 202-a and the UE 104-a are using to communicate, then the UE 104-b may experience CLI 210 from a transmission between the UE 104-a and the RAN node 202-a. Additionally, or alternatively, the RAN node 202-a may experienceCLI 210 from a transmission between the RAN node 202-b and the UE 104-b. The CLI 210 may cause decoding and / or reception errors at the RAN node 202-a and / or the UE 104-b, resulting in high signaling overhead due to an increase in retransmissions, as well as increased processing during decoding.

[0075] In some examples, to mitigate CLI 210, a RAN node 202-a and a RAN node 202-b can exchange and coordinate an intended TDD pattern via communications over one or more interfaces 208, including, but not limited to an Xn interface or an Fl interface. An Xn interface provides for communication between base stations, while an Fl interface provides for communication between a CU and a DU within a base station. One or more UEs experiencing interference (e.g., the UE 104-b) can be configured to perform CLI measurements. In some examples, there may be multiple different types of CLI measurements, such as two different types of CLI measurements. The types of CLI measurements may include an RSRP measurement and a RSSI measurement, among others.

[0076] In some examples, the RAN node 202-a, the RAN node 202-b, the UE 104-a, and / or the UE 104-b may implement SBFD operation, where multiple wireless devices may be configured to transmit uplink signals in a sub-band using symbols allocated for a downlink transmission, or vice- versa. In some examples, multiple wireless devices within a cell (e.g., a coverage area of a RAN node) implementing SBFD operation may result in CLI 210, such as due to beamforming at millimeter-wave frequencies and / or beamforming configurations. For example, a UE 104-a may transmit an uplink signal via the uplink wireless communications link 204 with a transmit beam that is spatially directed toward a UE 104-b, and the UE 104-b may receive a downlink signal via the downlink wireless communications link 206 using same, or overlapping, time-frequency resources as the uplink signal and with a receive beam spatially directed toward the UE 104-a. The uplink signal may cause CLI 210 at for the downlink signal.

[0077] The CLI 210 may be reduced, or eliminated, by signaling and coordination among wireless devices (e.g., the UE 104-a, the UE 104-b, the RAN node 202-a, and / or the RAN node 202-b). For example, a UE 104-a may be provided configuration information of a reference signal (e.g., an SRS) from a UE 104-b. The UE 104-a may be configured to measure the SRS and report one or more measurements, such as an RSRP of the SRS (SRS-RSRP), to a serving base station (e.g., the RAN node 202-a). In some examples, an SRS-RSRP may be defined as a linear average of a power contribution (e.g., in watts) of resource elements carrying SRSs. The SRS-RSRP is measured over configured resource elements within a considered measurement frequencybandwidth in one or more configured measurement time occasions. For example, for FR1 (e.g., frequency bands below 6 GHz), the reference point for the SRS-RSRP may be an antenna connector of a UE. In some other examples, for frequency range 2 (e.g., mmWave transmissions), SRS-RSRP may be measured based on the combined signal from antenna elements corresponding to a given receiver branch. For the frequency ranges 1 and 2, if a UE implements receiver diversity, then a reported SRS-RSRP value may not be lower than a corresponding SRS-RSRP of respective receiver branches.

[0078] In some cases, the UE 104-a may be configured to measure a RSSI for CLI 210 (CLI- RSSI), which may be defined as a linear average of a total received power (e.g., in watts) observed in one or more configured symbols (e.g., orthogonal frequency division multiplexing (OFDM) symbols) of one or more configured measurement time resources, in a configured measurement bandwidth from respective sources, including co-channel serving and non-serving cells, adjacent channel interference, thermal noise etc. For FR1, the reference point for the CLI-RSSI may be the antenna connector of the UE. For FR2, CLI-RSSI may be measured based on the combined signal from antenna elements corresponding to a respective receiver branch. For FR1 and FR2, if the UE implements receiver diversity, then the reported CLI-RSSI value may not be lower than a corresponding CLI-RSSI of respective receiver branches.

[0079] In some examples, the UE 104-a may be within a same serving cell as the UE 104-b, and the CLI 210 may be referred to as intra-cell CLI. In some other examples, the UE 104-a may be within a different serving cell as the UE 104-b, and the CLI 210 may be referred to as inter-cell CLI. In some cases, such as for inter-UE CLI 210 management for SBFD operation, a UE 104-b experiencing CLI 210 may measure a RSSI within a downlink sub-band, may measure an RSRP of an interfering UE 104-a within an uplink sub-band, and / or may measure a RSSI within the uplink sub-band. The UE 104-b may report the CLI measurements by including separate measurement resources and / or reports for respective downlink sub-bands, by including a measurement resource and / or report for a single downlink sub-band, and / or by including a measurement resource and / or report for non-contiguous resources across downlink sub-bands. Including separate measurement resources and / or reports for respective downlink sub-bands may provide for flexible configuration of measurement reporting in one or more downlink sub-bands but consumes multiple CLI measurement resources from a UE capability budget. Including a measurement resource and / or report for a single downlink sub-band reduces measurement resources, but also reduces RAN nodeconfiguration flexibility, and may not account for whether or not the CLI is asymmetric across multiple downlink sub-bands. Including a measurement resource and / or report for non-contiguous resources across downlink sub-bands reduces measurement resources, and may maintain RAN node configuration flexibility, while accounting for CLI asymmetry. In some examples, the CLI measurements may be used to identify an interfering UE 104-a, such as if orthogonal resources are allocated for different UEs.

[0080] In some examples, one or more RAN nodes (e.g., the RAN node 202-a and the RAN node 202-b, which may be examples of base stations) may also experience inter-cell CLI and / or CLI 210 due to SBFD operation. In some examples, the CNs 106 (e.g., a RAN controller) may introduce a framework for managing CLI 210 among RAN nodes and UEs, where enhanced duplexing methods, including SBFD operations, are implemented. The framework is described in further detail with respect to Figures 5 through 11. In some cases, the framework is compatible with the O-RAN framework and service models, where the O-RAN framework is further described with reference to Figure 2. Additionally, or alternatively, the framework may be compatible with other communication frameworks, including, but not limited to, evolved RAN architectures (e.g., 5G, 6G, etc.). In variations, the framework may use the interfaces 208, where a control entity or RAN controller is a part of a RAN network, the CNs 106, any combination of both, or a converged RAN- CN architecture. Additionally, or alternatively, signaling among the RAN nodes and / or the control entity may be realized over a new interface such as an E2 or 01 interface, according to an architecture compliant with the O-RAN architecture.

[0081] Figure 3 illustrates an example of a RAN architecture diagram 300 in accordance with aspects of the present disclosure. In some examples, the RAN architecture diagram 300 may implement, or be implemented by, aspects of the wireless communications system 100 and the wireless communications system 200. The RAN architecture diagram 300 may be implemented by a RAN node and a RAN controller, which may be examples of the corresponding devices as described with reference to Figures 1 and 2. For example, the RAN architecture diagram 300 may illustrate examples of interfaces between different RAN nodes, such as a base station, a CU of a base station, a DU of a base station, and a control entity or RAN controller. The control entity may be an example of a near-real-time RIC 302 and / or a non-real-time RIC 304. Although Figure 3 illustrates an example of an O-RAN architecture, aspects of the methods, systems, and apparatusesas described herein may be implemented in the context of additional, or alternatively, network architectures.

[0082] A control entity and / or a RAN controller may refer to a near-real-time RIC 302, a non- real-time RIC 304, or any combination of both, a subset of either, or any other control entity in the RAN, one or more CNs, or any combination of both, or a network with a converged RAN-CN architecture. Similarly, a network interface in the present disclosure may be any type of network interface, such as a next generation (NG) interface, an Xn interface, an E2 interface, and / or an 01 interface. An NG interface may be a network interface between a next generation core (NGC) and the RAN. In some examples, a service management and orchestration framework 306 may define one or more interfaces between different RAN devices.

[0083] A RAN may include a non-real-time RIC 304, which is an element of 0-RAN architecture that controls other RAN elements and resources. The non-real-time RIC 304 may use artificial intelligence and machine learning to control RAN elements and resources. A response time of the non -real-time RIC 304 may be relatively large (e.g., greater than a threshold) when compared with a response time of a near-real-time RIC 302. A near-real-time RIC 302 controls other RAN elements and resources for events and resources with a relatively short response time (e.g., 10 milliseconds (ms), less than a threshold value). The non-real-time RIC 304 and the near-real-time RIC 302 may be connected via an Al interface. The service management and orchestration framework 306 may include an O-eNB 308, which may be an eNB that supports the 0-RAN architecture, and an 0-DU 310, which may be a DU that supports the 0-RAN architecture. The O-eNB 308 and the 0-DU 310 may be connected via an 01 interface. The O-eNB 308 may additionally, or alternatively, be connected to the near-real-time RIC 302 via an E2 interface. The service management and orchestration framework 306 may include an O-CU-control plane (CP) 312 responsible for control plane communication and signaling. The CP is a portion of a network that controls how data is exchanged (e.g., including a RRC layer), such as by defining a network topology or information for routing data packets. The O-CU-CP 312 may be connected to the near- real-time RIC 302 and / or other nodes of the service management and orchestration framework 306 (e.g., the O-eNB 308, 0-DU 310, and / or an O-CU-user plane (UP) 314) via an 01 interface. The service management and orchestration framework 306 may include a O-CU-UP 314 that configures and controls the CU user plane entities. The UP controls the creation of data packets (e.g., at apacket data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and / or a medium access control (MAC) layer).

[0084] In some examples, the service management and orchestration framework 306 may include a Y1 interface for indicating analytics information from the near-real-time RIC 302 to one or more Y 1 consumers 316. The service management and orchestration framework 306 may include an O-RU 318, which may be an RU that supports the O-RAN architecture, as well as an O-cloud 320. The O-cloud 320 includes one or more hardware and software components that provide cloud computing capabilities to execute the RAN functions. The O-cloud 320 may be connected to one or more other devices in the service management and orchestration framework 306 via an interface 02 for the o-cloud 320. The O-RU 318 may be connected to one or more other devices in the service management and orchestration framework 306 via an open fronthaul (FH) management plane (M- Plane) interface that provides for one or more direct logical interfaces between management systems and the O-RU 318. Additionally, or alternatively, the O-RU 318 may be connected to the 0-DU by an open FH control user synchronization (CUS)-plane interface. The CUS plane is any combination of the CP, the UP, and a synchronization plane. The synchronization plane refers to traffic between the O-RU 318 and / or 0-DU 310 to a synchronization controller. In some examples, a RAN node may refer to any of the devices and / or components illustrated in Figure 3, including, but not limited to, the 0-DU 310, the O-eNB 308, and the 0-DU. Similarly, the RAN controller, or control entity, may refer to any of the devices and / or components illustrated in Figure 3, including, but not limited to, the near-real-time RIC 302 and / or the non-real-time RIC 304.

[0085] Figure 4 illustrates an example of a RAN layer diagram 400 in accordance with aspects of the present disclosure. In some examples, the RAN layer diagram 400 may implement, or be implemented by, aspects of the wireless communications system 100, the wireless communications system 200, and the RAN architecture diagram 300. The RAN layer diagram 400 may be implemented by a RAN node and a RAN controller, which may be examples of the corresponding devices as described with reference to Figures 1 through 3. For example, the RAN layer diagram 400 may illustrate examples of communication layers for signaling between one or more devices in a wireless communications system, such as a RAN node, a RAN controller, and / or a UE, among other devices.

[0086] In variations, communications among RAN nodes and / or a RAN controller may occur at a radio network layer 402. A protocol stack may include the radio network layer 402 and a transportnetwork layer 404. The transport network layer 404 may be further divided into a transport layer 406, a network layer 408, a data link layer 410, and / or a physical layer 412. The transport layer 406 (e.g., the fourth layer (L4)) manages end-to-end communication and data flow control between devices on a network. The transport layer 406 performs error detection, error correction, and / or segmentation of a data transmission into data packets. The network layer 408 (e.g., the third layer (L3)) manages logical addressing, routing, and forwarding of data packets between devices. The data link layer 410 (e.g., the second layer (L2)) manages access to a physical medium for a transmission. The physical layer 412 (e.g., the first layer (LI)) managers the physical connection and transmission of raw binary data over a physical medium.

[0087] Figure 5 illustrates an example of signaling diagram 500 in accordance with aspects of the present disclosure. In some examples, the signaling diagram 500 may implement aspects of the wireless communications system 100, the wireless communications system 200, the RAN architecture diagram 300, and the RAN layer diagram 400. The signaling diagram 500 may illustrate an example of a framework for CLI measurement and reporting between a RAN controller 502 and a RAN node 504. The RAN controller 502 and the RAN node 504 may be examples of corresponding devices (e.g., a RAN node 202 and a CN 106, respectively) as described with reference to Figures 1 through 4. Alternative examples of the following may be implemented, where some processes are performed in a different order than described or are not performed. In some cases, processes may include additional features not mentioned below, or further processes may be added.

[0088] In some examples, a control entity (e.g., a RIC), which may additionally, or alternatively, be referred to as a RAN controller 502, may initiate a subscription procedure with a RAN node 504. The subscription procedure may include subscription information that includes parameters for monitoring and / or controlling one or more processes at a RAN node 504, including, but not limited to, CLI management processes. A subscription procedure may include one or more of subscription signaling, subscription modification signaling, subscription deletion signaling, and the like.

[0089] At 506, the RAN controller may transmit a message to the RAN node 504 including a subscription request. The subscription request may include subscription information indicating one or more parameters. The parameters may include a request identifier, a function identifier, a subscription details information element (IE), a subscription start-time, a subscription end-time, or asubscription duration. The request identifier may be a local identifier used to identify a functional procedure among a set of functional procedures initiated by a RAN node 504, a RAN controller 502, or both. Messages in a same procedure may use a same request identifier. That is, messages that follow the subscription request message may include a same value for a request identifier parameter to indicate that the messages are associated with the subscription procedure or the subscription request message. The RAN controller 502 and / or the RAN node 504 may determine the request identifier. The request identifier may include one or more of a requestor identifier, an instance identifier, or the like.

[0090] The function identifier may be unique for a RAN node 504, the RAN controller 502, or both. The function identifier may be associated with a function, such as a CLI management process, a duplexing enhancement process, a resource allocation process, a RAN control process, or the like. The subscription details IE may include details of the subscription request. The subscription details IE may include a list of one or more event trigger definitions (e.g., respective event triggers represented as an OCTET STRING or an IE indicating a condition that is evaluated to trigger one or more associated actions) and / or a list of one or more actions indicated by an action IE. The action IE may include an action identifier used to identify an associated action within the subscription procedure, an action type (e.g., REPORT, INSERT, POLICY, or the like), an action definition (e.g., an OCTET STRING or an IE indicating a definition of the associated action according to the standard specification, a network configuration, a signaling among network entities, or the like), a subsequent action, which may include a subsequent action type (continue, resume, wait, halt, etc.) and / or a wait time in ms, seconds, or like, and / or an action execution order. In some examples, a condition that may trigger one or more actions for a CLI management process may be a CLI value exceeding a threshold, a wait timer expiring, or both. The subscription start-time and the subscription end-time or duration may indicate a time period during which the subscription is considered valid by the RAN controller 502.

[0091] In response to the subscription request, at 508, the RAN node may transmit a message to the RAN controller including a subscription response. The subscription response may include an indication that the non-real-time RIC 304 accepts one or more of the actions indicated by the subscription request message. The subscription response message may include one or more of the request identifier indicating the subscription response is associated with (e.g., for a same subscription as) the subscription request, the function identifier indicating the subscription responseis associated with a function, a subset of action identifiers (e.g., including a subset of zero) for respective actions that are admitted or accepted by the RAN node 504, a subset of action identifiers (e.g., including a subset of zero) of the action identifiers associated with actions that are rejected (e.g., not admitted or accepted) by the RAN node 504, and / or one or more reasons or causes for the RAN node 504 not admitting or accepting the actions.

[0092] In some examples, upon accepting the actions by transmitting the subscription response, the RAN node 504 may execute the one or more actions that the RAN node 504 indicated as admitted or accepted. For example, the RAN node 504 may determine that one or more events are triggered according to the event trigger definitions provided in the subscription request. The conditions associated with the event trigger definitions may be examined during the subscription validity period as indicated by the subscription start-time and the subscription end-time or duration.

[0093] In some cases, at 510, the RAN node may transmit a message to the RAN controller including a subscription modification indication that indicates to the RAN controller that the RAN node is requesting an update to subscription information included in the subscription request at 506. At 512, the RAN controller may transmit a message to the RAN node including a subscription modification request to modify an existing subscription. At 514, the RAN node may transmit a message to the RAN controller including a subscription modification response.

[0094] In some other cases, at 516, the RAN node may transmit a message to the RAN controller including a subscription deletion indication that indicates to the RAN controller that the RAN node is requesting for the subscription to be deleted and / or otherwise terminated. At 518, the RAN controller may transmit a message to the RAN node including a subscription deletion request. At 520, the RAN node may transmit a message to the RAN controller including a subscription deletion response. The subscription deletion response may include an indication of whether the request message is accepted (e.g., subscription deletion accept indication) and the subscription is deleted and / or may include an indication that the RAN node 504 failed to delete the subscription (e.g., a subscription deletion failure indication). The subscription deletion accept indication and the subscription deletion failure indication may indicate a full or partial admission or a full or partial rejection of the associated request, respectively.

[0095] In some cases, a message in subscription procedure signaling may include one or more parameters in addition to, or as an alternative to, the aforementioned identifier parameters. For example, the message may include identity information associated with the RAN controller 502(e.g., a node identifier and / or an application identifier) and / or identity information associated with the subscription (e.g., a subscription identifier, a procedure instance identifier, and / or a process identifier). In some examples, one or more messages in the subscription procedure signaling may include identifier parameters, subscription details, parameters indicating the validity period of the subscription, and the like.

[0096] Prior to initiating the subscription procedure, the RAN controller 502 may determine information about services, functions, etc. provided by the RAN node 504. In some examples, the information may be provided to the RAN controller 502 by an operations, administration, and maintenance (0AM) configuration or 0AM signaling. In some other examples, the information may be exposed (e.g., provided or otherwise indicated) to the RAN controller 502 by the RAN node 504 via signaling on an interface, such as an E2 interface. The signaling may include an indication of a RAN node capability, service, or function for CLI management, an enhanced duplexing such as dynamic and / or flexible TDD, SBFD, or the like, a resource allocation process that uses CLI management, an existing CLI measured or detected by the RAN node 504, and / or the like. The information provided by the RAN node 504 or other RAN nodes 504 within a threshold distance from the RAN node 504 may trigger the RAN node 504 to initiate a subscription procedure with the RAN node 504 and / or the other RAN nodes 504 for CLI management. In some other examples, another entity in the network, such as a network management entity, may receive the aforementioned indication (e.g., function exposure) from a RAN entity, such as the RAN node 504, and may indicate to an NE to initiate the subscription procedure. Thus, the RAN controller 502 may be triggered indirectly by information provided by the RAN node 504. In variations, signaling via an interface between the RAN node 504 and the RAN controller 502 may have a relationship with a cell configuration for the RAN node 504, UEs served by the RAN node 504, and the like. The configurations may be RRC configurations, higher layer configurations, LI and / or L2 signaling, or any combination thereof.

[0097] In some cases, the RAN node 504 exposes a function for CLI management in association with an enhanced duplexing configuration (e.g., a dynamic / flexible TDD (d / f-TDD) or SBFD configuration). For example, the RAN node may expose the function prior to configuring a d / f-TDD or SBFD configuration. The RAN node may proceed with configuring one or more UEs with d / f- TDD or SBFD operation upon establishing the subscription with the RAN controller 502. In someother examples, the RAN node 504 may expose the function and / or proceed with establishing the subscription upon configuring one or more UEs with d / f-TDD or SBFD.

[0098] In some other cases, the RAN node 504 may send a subscription modification indication (e.g., a subscription modification required message) to the RAN controller 502 in association with a change in an enhanced duplexing configuration (e.g., d / f-TDD or SBFD). For example, the RAN node 504 may send the message upon changing the configuration for one or more UEs. The message may be sent before or after the change in the configuration. In some examples, the RAN node 504 may change the configuration upon a successful modification of the associated subscription (e.g., upon receiving a subscription modification request from the RAN controller 502 and / or sending a subscription modification response to the RAN controller 502).

[0099] In some other cases, the RAN node 504 may send a subscription deletion indication (e.g., a subscription deletion required message) to the RAN controller 502 in association with terminating an enhanced duplexing configuration (e.g., d / f-TDD or SBFD). For example, the RAN node may send the message upon terminating the configuration for one or more UEs. The message may be sent before or after the termination of the configuration. In some realizations, the RAN node 504 may terminate the configuration before or after a successful deletion of the associated subscription (e.g., upon receiving a subscription deletion request from the RAN controller 502 and / or sending a subscription deletion response to the RAN controller 502).

[0100] In some other cases, the RAN node 504 may change the function exposure in association with a change or a termination of a configuration. For example, the RAN node 504 may expose a function with one or more parameters modified, compared to a prior exposure of the same or a similar function, in association with the change and / or termination of the configuration. In some other examples, the RAN node 504 may expose that the function is no longer available upon the change and / or termination of a configuration.

[0101] In variations, signaling between the RAN node 504 and the RAN controller 502 may include a copy of one or more IES, such as RRC configuration IES and / or Xn or NG IES, that include information related to a function or a subscription. For example, a function exposure message or a subscription procedure message may include a copy of a d / f-TDD configuration IE, an SBFD configuration IE, or the like. In some examples, the IE may be an RRC IE, such as a TDD Config-Common IE, a TDD Config-Dedicated IE, an SBFD Config IE, or the like. In some other examples, the IE may be an Xn IE or an NG IE, such as an Intended TDD Config IE, an IntendedSBFD Config IE, or the like. The copy of the IE may be communicated as an OCTET STRING according to a message copy service for the interface (e.g., an E2 interface) between the RAN node 504 and the RAN controller 502.

[0102] Figure 6 illustrates an example of signaling diagram 600 in accordance with aspects of the present disclosure. In some examples, the signaling diagram 600 may implement aspects of the wireless communications system 100, the wireless communications system 200, the RAN architecture diagram 300, the RAN layer diagram 400, and the signaling diagram 500. The signaling diagram 600 may illustrate an example of a framework for CLI measurement and reporting between a RAN controller 602 and a RAN node 604. The RAN controller 602 and the RAN node 604 may be examples of corresponding devices (e.g., a RAN node 202 and a CN 106, respectively) as described with reference to Figures 1 through 4. Alternative examples of the following may be implemented, where some processes are performed in a different order than described or are not performed. In some cases, processes may include additional features not mentioned below, or further processes may be added.

[0103] In some examples, at 606, a control entity (e.g., a RIC), which may additionally, or alternatively, be referred to as a RAN controller 602, may initiate a subscription procedure with a RAN node 604. The subscription procedure may include subscription information that includes parameters for monitoring and / or controlling one or more processes at a RAN node 604, including, but not limited to, CLI management processes.

[0104] At 608, the RAN controller 602 and the RAN node 604 may exchange one or more messages for a subscription procedure with a type of REPORT. A subscription procedure may include one or more of subscription signaling, subscription modification signaling, subscription deletion signaling, and the like. In some examples, the RAN controller 602 may send, in one or more messages in the subscription procedure, subscription information including one or more parameters for CLI reporting by the RAN node 604 to the RAN controller 602. The subscription procedure messages may include one or more of an indication of a reporting action (e.g., Action = REPORT), an indication that the value to be reported is a CLI (e.g., key performance measurement (KPM) = CLI), or an indication of what triggers a CLI reporting message (e.g., a trigger condition for CLI reporting).

[0105] A KPM may be specified for measurements and reporting for a RAN and / or a CN (e.g., for network functions). An associated service model may support a RAN node 604 (e.g., a basestation, a CU at a base station, and / or a DU at a base station). The RAN node 604 may host a RAN function “KPM Monitor” performing functionalities, such as exposure of available measurements from the RAN node 604, and / or reporting of measurements subscribed from the RAN controller 602, among other functionalities. The “KPM Monitor” RAN function may provide REPORT services, such as measurements by a RAN node 604, measurements for a UE or a group of UEs, UE-specific condition-based measurements, and / or common condition-based measurements, among other services. Various message formats may be specified or configured for a KPM IE. In some examples, a KPM IE may include one or more values of a KPM (e.g., CLI, excess CLI, signal strength, signal quality, or the like). For example, the values of a KPM may include RSRP, CSI- RSRP, SSB-RSRP, SRS-RSRP, RSRQ, RSSI, or the like. The KPM IE may further include one or more of information of associated resources in the time domain, frequency domain, code domain, spatial domain (e.g., beams), information of how the associated measurements are performed, information of associated signaling (e.g., identifier parameters indicating a subscription, a function, a procedure instance, a RAN node 504), information of the condition that triggered the KPM signaling, information of a status of the RAN node 504, a subsequent action after the KPM signaling, or the like. In variations, the term KPM = CLI may imply that a KPM IE with one or more values of a CLI (e.g., CLI, excess CLI, signal strength, signal quality, or the like) is communicated in a KPM IE that may include one or more parameters conveying the information.

[0106] In some examples, the subscription information may indicate for the RAN node 504 to perform a periodic reporting of CLI. For example, a parameter included in the subscription information may indicate a value of a periodicity for the CLI reporting. At 610, the RAN node 604 may reset a periodicity timer. The periodicity timer may be set to the value indicated in the subscription information.

[0107] At 612, the RAN node 604 may measure CLI. For example, the RAN node 604 may obtain one or more CLI values. At 614, the RAN node 604 may determine the periodicity timer is expired, which may trigger CLI reporting. For example, at 616, the RAN node 604 may transmit CLI reporting to the RAN controller 602.

[0108] In some examples, the RAN controller 602 may indicate, through the subscription procedure signaling at 608, information on what CLI measure for the RAN node 604 to include in the CLI reporting at 616. For example, the RAN controller 602 may indicate to the RAN node 604 to report an RSSI as a measure of CLI. The RAN controller 602 may further indicate resources onwhich the RS SI is to be measured. The RAN controller 602 may indicate to a first set of RAN nodes, including the RAN node 604, to avoid using the resources for transmissions by the set RAN nodes, the UEs served by the set of RAN nodes, or both. The RAN node 604 may measure RSSI associated with transmissions from a second set of RAN nodes, UEs served by the second SET of RAN nodes, or both. In some examples, the RAN controller 602 may indicate the resources as one or more of resources in the time domain (e.g., one or more symbols, slots, subframes, and / or frames), resources in the frequency domain (e.g., one or more subcarriers, physical resource blocks (PRBs), resource block groups (RBGs), sub-bands, BWPs, CCs, and / or frequency bands), resources in the spatial domain (e.g., one or more beams, beam groups, and / or directions), resources in a code domain, resources (e.g., in time, frequency, spatial, and / or code domains) associated with one or more signals or channels, resources associated with a stream, a quality of service (QoS) flow, a radio bearer, or the like, and / or resources associated with a network slice. A beam or beam group may be indicated by a relationship with a reference signal (e.g., a reference signal identifier, an SSB index, and / or a QCL relationship). A signal or channel may be indicated by a configuration identifier, resource identifier, or the like associated with the signal or channel.

[0109] In some examples, the RAN controller 502 may indicate to the RAN node 504 to report an RSRP associated with a reference signal that is transmitted by a second RAN node, UEs served by the second RAN node, or both. The RAN controller 502 may further indicate to the second RAN node to transmit the reference signal or configure UEs served by the second RAN node to transmit the reference signal. In some cases, the reference signal may be a downlink reference signal such as a synchronization signal, an SSB, and / or a CSI-RS transmitted by the second RAN node. In some other cases, or the reference signal may be an uplink reference signal such an SRS transmitted by one or more UEs served by the second RAN node.

[0110] The reference signal may be indicated by parameters describing a reference signal type (e.g., synchronization signal, SSB, CSI-RS, SRS, etc.), reference signal resources (e.g., in a time domain, a frequency domain, a spatial domain, and / or a code domain), a pattern in the time-domain (e.g., periodic, semi-persistent, aperiodic, and / or event-triggered) and / or a frequency-domain (e.g., comb pattern and / or SRS switching pattern), a sequence seed, and the like. In some cases, the parameters may be defined individually in the formats of the messages in the subscription procedure signaling. In some other cases, the parameters may be communicated as an OCTET STRING in the subscription procedure signaling at 608. The OCTET STRING may then be decoded by the RANnode 604 at the transport layer, RRC layer, or the like. In some other cases, any combination of fields in the message format and information in OCTET STRING fields may be used for indicating the parameters. If a parameter is indicated in both the message format and information in OCTET STRING fields, the value in the message may take precedence over the value conveyed through the OCTET STRING field, or vice versa, as configured or defined (e.g., by the 0AM or the network), indicated by a signaling, or any combination thereof. The OCTET STRING field may be obtained by a message copy service. In some examples, the RAN controller 602 may indicate to the RAN node 604 to report an RSSI, an SINR, an RSRQ, and / or an RSRP as a measure of CLI.

[0111] The RAN controller 602 may indicate, through the subscription procedure signaling at 608, information on how to measure CLI. For example, the RAN controller 602 may indicate to the RAN node 604 to perform a CLI measurement and examine the measured CLI to determine whether an event is triggered. The RAN controller 602 may indicate for the RAN node 604 to determine whether the measured CLI exceeds one or more threshold values (e.g., a threshold RSSI, a threshold SINR, a threshold RSRQ, and / or a threshold RSRP). Additionally, or alternatively, the RAN controller 602 may indicate a periodicity for performing CLI measurements, which may or may not be equal to a periodicity for CLI reporting.

[0112] In some other examples, the RAN controller 602 may indicate for the RAN node 604 to perform multiple CLI measurements and examine an average or a maximum of the measured CLI values for determining whether an event is triggered. For example, the RAN node 604 may receive an indication of a numerical quantity, N, of CLI measurements to perform for computing an average or maximum. Additionally, or alternatively, the RAN node 604 may receive an indication of a periodicity for performing the CLI measurements. The periodicity may be indicated in units of slots, subframes, frames, milliseconds, seconds, or the like. In some other examples, the RAN controller 602 may indicate to the RAN node 604 that an event is triggered if one or more CLI values exceed a threshold for a minimum numerical quantity, N, of consecutive CLI measurements. In some other examples, the RAN controller 602 may indicate to the RAN node 604 that an event is triggered if a minimum numerical quantity, M, of CLI values exceed a threshold value in a numerical quantity, N, of consecutive CLI measurements. In variations, the RAN controller 602 may indicate to the RAN node 604 to report a single CLI value, an average CLI value, a maximum CLI value, a subset of N CLI values, or a set of CLI values obtained from the measurements. In some cases, values of periodicity, threshold, N, M, and the like may be indicated to the RAN node 604 through thesubscription procedure signaling, configured by the network, preconfigured, or otherwise defined, determined by implementation, or any combination thereof.

[0113] In some examples, the CLI report may be used for taking a CLI mitigation action. For example, the RAN controller 602 may make use of a CONTROL service signaling to indicate to the RAN node 604, or other RAN nodes a threshold distance from the RAN node 604, to perform a CLI mitigation action. For example, CLI mitigation actions may include, but are not limited to, reducing a transmission power when transmitting a signal that causes excessive CLI, avoiding or refraining from communicating using one or more beams that cause excessive CLI, avoiding or refraining from communicating using a set of time-frequency resources, such that another RAN node may use the set of time-frequency resources for communications without experiencing excessive CLI, or any combination thereof, which is described in further detail with respect to Figures 9 through 11.

[0114] In some examples, a CLI report from a RAN node 604 may include one or more parameters. The parameters may include one or more values of CLI (e.g., X decibel-milliwatts (dBm)). The RAN node 604 may obtain a CLI value by one or more measurements as indicated by the subscription procedure, indicated by a network and / or 0AM configuration, preconfigured or otherwise defined, determined by an implementation, or any combination thereof. A relatively large CLI value (e.g., greater than or above a threshold value) may indicate an excessive CLI experienced by the RAN node 604 or a UE served by the RAN node 604. The RAN node 604 may round the CLI value (e.g., the value of X) to the nearest value in an enumerated set as configured or specified. In some cases, the parameters may include one or more values of excess CLI (e.g., Y decibels (dB)). The RAN node 604 may report an excess CLI value Y above a threshold value, T dB, in addition to, or as an alternative to, reporting the absolute CLI value (e.g., X dBm). The excess CLI value may be obtained by subtracting T from X (e.g., Y = X — T). The RAN node 604 may determine the value of T from information indicated in the subscription procedure, configured by the network and / or 0AM, determined according to a signal strength associated with the signal or the UE experiencing the CLI, determined based on an implementation, or any combination thereof. In some examples, the RAN node 604 may indicate the threshold value in the CLI report or other signaling. The RAN node 604 may round the value of Y to the nearest value in an enumerated set as configured or specified. In some examples, the RAN controller 602 may use the value of Y, as reported by a RAN node 604, to request a reduction of a transmission power by Y dB viaCONTROL signaling, as specified in further detail with respect to Figures 9 through 11 (e.g., for methods by REPORT, CONTROL service and methods by INSERT, CONTROL service).

[0115] In some examples, the parameters include an indication of associated beams. For example, the RAN node 604 may associate a CLI value and / or excess CLI value with respective beams or spatial directions, which may indicate that the CLI or excess CLI is experienced when receiving signals through the beams or spatial directions. A beam or spatial direction may be indicated by a beam index, a reference signal index, a reference signal resource identifier, a QCL relationship, a direction, or any combination thereof.

[0116] In some examples, the parameters include an indication of associated resources. A CLI value and / or an excess CLI value may be associated with certain communication resources, which may indicate that the CLI or excess CLI is experienced when receiving signals or channels that occur on, or overlap with, those communication resources. The communication resources may be indicated as one or more of resources in a time domain (e.g., one or more symbols, slots, subframes, and / or frames), resources in the frequency domain (e.g., one or more subcarriers, PRBs, RBGs, subbands, BWPs, CCs, and / or frequency bands), resources in the spatial domain (e.g., one or more beams, beam groups, and / or directions), resources in a code domain, resources (e.g., in a time domain, a frequency domain, a spatial domain, and / or a code domain) associated with one or more signals or channels, resources associated with a stream, a QoS flow, a radio bearer, or the like, and / or resources associated with a network slice. A beam or beam group may be indicated by a relationship with a reference signal (e.g., a reference signal identifier, a synchronization signal index, an SSB index, and / or a QCL relationship). A signal or channel may be indicated by a configuration identifier, a resource identifier, or the like associated with the signal or channel. Additionally, or alternatively, a CLI report may include one or more identifier parameters that indicate an association with one or more of a subscription, a configuration, a function, a procedure instance, a RAN node 604, a group of RAN nodes, a cell, a group of cells, a UE, a group of UEs, or the like.

[0117] At 618, the RAN controller 602 may receive and process the CLI measurements. The RAN node 604 and / or the RAN controller 602 may repeat the operations defined by 620 (e.g., the operations at 610, 612, 614, 616, and 618) until a condition is satisfied. In some cases, the condition may include receiving a message from the RAN controller 602 triggering a CLI management procedure, which is described in further detail with respect to Figures 9 through 11. In some othercases, the condition may include receiving a message from the RAN controller 602 that indicates for the RAN node 604 to suspend, or pause, the CLI measurement operations, to modify the CLI measurement operations, and / or to cancel or delete the CLI measurement operations.

[0118] Figure 7 illustrates an example of signaling diagram 700 in accordance with aspects of the present disclosure. In some examples, the signaling diagram 700 may implement aspects of the wireless communications system 100, the wireless communications system 200, the RAN architecture diagram 300, the RAN layer diagram 400, the signaling diagram 500, and the signaling diagram 600. The signaling diagram 700 may illustrate an example of a framework for CLI measurement and reporting between a RAN controller 702 and a RAN node 704. The RAN controller 702 and the RAN node 704 may be examples of corresponding devices (e.g., a RAN node 202 and a CN 106, respectively) as described with reference to Figures 1 through 4. Alternative examples of the following may be implemented, where some processes are performed in a different order than described or are not performed. In some cases, processes may include additional features not mentioned below, or further processes may be added.

[0119] In some examples, at 706, a control entity (e.g., a RIC), which may additionally, or alternatively, be referred to as a RAN controller 702, may initiate a subscription procedure with a RAN node 704. The subscription procedure may include subscription information that includes parameters for monitoring and / or controlling one or more processes at a RAN node 704, including, but not limited to, CLI management processes.

[0120] At 708, the RAN controller 702 and the RAN node 704 may exchange one or more messages for a subscription procedure with a type of REPORT, as described with reference to Figure 6.

[0121] In some examples, the subscription information may indicate for the RAN node 704 to perform event triggered reporting of CLI. For example, a parameter included in the subscription information may indicate information related to a triggering event (e.g., a threshold value for CEI) for the CEI reporting.

[0122] At 710, the RAN node 704 may measure CEI. For example, the RAN node 704 may obtain one or more CLI values, as described with reference to Figure 6. At 712, the RAN node 704 may compare the measured CLI to one or more threshold values. For example, the RAN node 704 may compare one or more of the measured CLI values to a threshold value configured in thesubscription information at 708. The threshold values may include one or more of a threshold RSSI, a threshold SINR, a threshold RSRQ, and / or a threshold RSRP.

[0123] In some cases, at 714, the RAN node 704 may transmit CLI reporting to the RAN controller 702. The content of the CLI report may include one or more CLI measurements, as described with reference to Figure 6. The RAN node 704 may determine whether a trigger event condition 716 is satisfied prior to transmitting the CLI reporting. For example, if the RAN node 704 determines the CLI satisfies the threshold value based on the comparison at 712, then the RAN node 704 may determine the trigger event condition is satisfied.

[0124] At 718, the RAN controller 702 may receive and process the CLI measurements. The RAN node 704 and / or the RAN controller 702 may repeat the operations defined by 720 (e.g., the operations at 710, 712, 714, and 718) until a condition is satisfied. In some cases, the condition may include receiving a message from the RAN controller 702 triggering a CLI management procedure, which is described in further detail with respect to Figures 9 through 11. In some other cases, the condition may include receiving a message from the RAN controller 702 that indicates for the RAN node 704 to suspend, or pause, the CLI measurement operations, to modify the CLI measurement operations, and / or to cancel or delete the CLI measurement operations.

[0125] Figure 8 illustrates an example of signaling diagram 800 in accordance with aspects of the present disclosure. In some examples, the signaling diagram 800 may implement aspects of the wireless communications system 100, the wireless communications system 200, the RAN architecture diagram 300, the RAN layer diagram 400, the signaling diagram 500, the signaling diagram 600, and the signaling diagram 700. The signaling diagram 800 may illustrate an example of a framework for CLI measurement and reporting between a RAN controller 802 and a RAN node 804. The RAN controller 802 and the RAN node 804 may be examples of corresponding devices (e.g., a RAN node 202 and a CN 106, respectively) as described with reference to Figures 1 through 4. Alternative examples of the following may be implemented, where some processes are performed in a different order than described or are not performed. In some cases, processes may include additional features not mentioned below, or further processes may be added.

[0126] In some examples, at 806, a control entity (e.g., a RIC), which may additionally, or alternatively, be referred to as a RAN controller 802, may initiate a subscription procedure with a RAN node 804. The subscription procedure may include subscription information that includesparameters for monitoring and / or controlling one or more processes at a RAN node 804, including, but not limited to, CLI management processes.

[0127] At 808, the RAN controller 802 and the RAN node 804 may exchange one or more messages for a subscription procedure with a type of REPORT, as described with reference to Figure 6.

[0128] In some examples, the subscription information may indicate for the RAN node 804 to perform any combination of periodic and event-triggered reporting. For example, one or more parameters included in the subscription information may indicate information related to a triggering event (e.g., a threshold value for CEI) for the CEI reporting, as well as a periodicity for periodic CEI reporting.

[0129] At 810, the RAN node 804 may reset a periodicity timer. The periodicity timer may be set to the value indicated in the subscription information.

[0130] At 812, the RAN node 804 may measure CEI. For example, the RAN node 804 may obtain one or more CEI values, as described with reference to Figure 6. At 814, the RAN node 804 may compare the measured CEI to a threshold value. For example, the RAN node 804 may compare one or more of the measured CEI values to a threshold value configured in the subscription information at 808.

[0131] In some cases, at 816, the RAN node 804 may transmit CEI reporting to the RAN controller 802. The content of the CLI report may include one or more CLI measurements, as described with reference to Figure 6. The RAN node 804 may determine whether a trigger event condition 818 is satisfied prior to transmitting the CLI reporting. For example, if the RAN node 804 determines the CLI satisfies the threshold value based on the comparison at 814, then the RAN node 804 may determine the trigger event condition is satisfied.

[0132] At 820, the RAN controller 802 may receive and process the CLI measurements. The RAN node 804 and / or the RAN controller 802 may repeat the operations defined by 822 (e.g., the operations at 812, 814, 816, and 820) until a condition is satisfied. In some cases, the condition may include receiving a message from the RAN controller 802 triggering a CLI management procedure, which is described in further detail with respect to Figures 9 through 11. In some other cases, the condition may include receiving a message from the RAN controller 802 that indicates for the RAN node 804 to suspend, or pause, the CLI measurement operations, to modify the CLI measurementoperations, and / or to cancel or delete the CLI measurement operations. In some other cases, the condition may include expiry of the timer that the RAN node 804 reset at 810.

[0133] For example, at 824, the RAN node 804 may determine the periodicity timer is expired, which may trigger additional CLI reporting. For example, at 826, the RAN node 804 may transmit CLI reporting to the RAN controller 802. The content of the CLI report may include one or more CLI measurements, as described with reference to Figure 6.

[0134] At 828, the RAN controller 802 may receive and process the CLI measurements. The RAN node 804 and / or the RAN controller 802 may repeat the operations defined by 830 (e.g., the operations at 810, 812, 814, 816, 820, 824, 826, and 828) until a condition is satisfied. In some cases, the condition may include receiving a message from the RAN controller 802 triggering a CLI management procedure, which is described in further detail with respect to Figures 9 through 11. In some other cases, the condition may include receiving a message from the RAN controller 802 that indicates for the RAN node 804 to suspend, or pause, the CLI measurement operations, to modify the CLI measurement operations, and / or to cancel or delete the CLI measurement operations.

[0135] Figure 9 illustrates an example of signaling diagram 900 in accordance with aspects of the present disclosure. In some examples, the signaling diagram 900 may implement aspects of the wireless communications system 100, the wireless communications system 200, the RAN architecture diagram 300, the RAN layer diagram 400, the signaling diagram 500, the signaling diagram 600, the signaling diagram 700, and the signaling diagram 800. The signaling diagram 900 may illustrate an example of a framework for CLI management between a RAN controller 902 and one or more RAN nodes 904 (e.g., a RAN node 1 and a RAN node 2). The RAN controller 902 and the RAN nodes 904 may be examples of corresponding devices (e.g., a RAN node 202 and a CN 106, respectively) as described with reference to Figures 1 through 4. Alternative examples of the following may be implemented, where some processes are performed in a different order than described or are not performed. In some cases, processes may include additional features not mentioned below, or further processes may be added.

[0136] In some examples, although the signaling diagram 900 illustrates two RAN nodes 904, the processes may be performed by any numerical quantity of RAN nodes 904 (e.g., one RAN node 904, more than two RAN nodes 904). For example, the processes described as being performed by the RAN node 1 may additionally, or alternatively, be performed by the RAN node 2.

[0137] At 906, the RAN node 1, the RAN controller 902, and / or the RAN node 2 may perform initial processes. The initial processes may be for a subscription procedure, including exchanging signaling related to the subscription procedure.

[0138] At 908, the RAN controller 902 and the RAN node 1 may perform a subscription procedure with a type of REPORT. For example, the RAN controller 902 and the RAN node 1 may exchange signaling, as described with reference to Figures 5 through 8. The subscription procedure may include one or more of a subscription signaling, a subscription modification signaling, and the like. The RAN controller 902 may transmit, in one or more messages in the subscription procedure, information for CEI reporting by the RAN node 1 to the RAN controller 902. The subscription procedure messages may include one or more of an indication of a reporting action (e.g., Action = REPORT) or an indication that the value to be reported is a CEI (e.g., KPM = CLI).

[0139] Additionally, or alternatively, the subscription procedure may indicate a trigger condition or trigger event for CLI reporting. For example, the RAN controller 902 may indicate to the RAN node 1 to send a CLI report periodically, upon a measured CLI exceeding a threshold, or both. In some cases, the RAN controller 902 may indicate to the RAN node 1, through the subscription procedure signaling, a value for a periodicity, a value for a CLI threshold, or both.

[0140] Additionally, or alternatively, at 910, the RAN controller 902 and the RAN node 2 may perform a subscription procedure (e.g., with a type of REPORT, CONTROL, INSERT, etc.). For example, the subscription procedure may inform the RAN node 2 that the RAN controller 902 may request an action for managing CLI (e.g., Action = CONTROL) in the subscription procedure signaling.

[0141] In some examples, at 912, the RAN node 1 may determine a measured CLI satisfies a threshold value. For example, the RAN node 1 may determine a trigger event condition is satisfied, where the trigger event condition is the CLI satisfying the threshold value, as described with reference to Figures 7 and 8.

[0142] At 914, the RAN node 1 may transmit CLI reporting to the RAN controller 902. The content of the CLI report may include one or more CLI measurements, as described with reference to Figure 6. At 916, the RAN controller 902 may receive and process the CLI measurements. For example, the RAN controller 902 may process the reported CLI and determine one or more actions for the RAN node 2 to perform to manage CLI.

[0143] In some examples, upon receiving the CLI report from RAN node 1 at 914, the control entity may implement a CONTROL service to request RAN node 2 to perform an action for reducing and / or managing CLI. The RAN node 2 may cause the interference at the RAN node 1, thus the RAN node 2 may be referred to as an interfering RAN node. For example, at 918, the RAN controller 902 may transmit a CLI management indication to the RAN node 2. The CLI management indication may include a control request message including information on an action to perform for managing interference. The action may be to reduce a transmission power, refrain from performing communications using resources in a time domain, a frequency domain, and / or a spatial domain, or the like.

[0144] At 920, the RAN node 2 may determine whether to update communication parameters for CLI management. That is, the RAN node 2 may process the request included in the CLI management indication and may determine whether to accept the request. If the RAN node 2 accepts the request, then the RAN node 2 may attempt to perform an action specified by the CLI management indication. In some cases, at 922, the RAN node 2 may transmit feedback to the RAN controller. For example, if the RAN node 2 accepts the request and applies the indicated action successfully, then the RAN node 2 may respond by sending a CONTROL ACKNOWLEDGE message to the RAN controller 902 indicating that the request was accepted and successful. In some other examples, if the RAN node 2 does not accept the request and / or fails to apply the indicated action successfully, then the RAN node 2 may respond by sending a CONTROL FAILURE message to the RAN controller 902 indicating that the request was not accepted or not successfully applied.

[0145] In variations, a RAN node may cause interference and experience interference concurrently (e.g., at a same time). Therefore, in some examples, the subscription procedure between the RAN controller 902 and a RAN node 904 may indicate to the RAN node 904 to send a CLI report and process control requests to manage CLI. The subscription procedure signaling may indicate multiple actions. For example, the subscription procedure signaling may indicate a report type and a control type (e.g., Action = REPORT and Action = CONTROL).

[0146] In some examples, the CLI management indication (e.g., including the CONTROL REQUEST message) from the RAN controller 902 to the RAN node 2 may indicate to the RAN node 2 to perform an action for managing CLI. For example, the CLI management indication may set or modify one or more communication parameters that may affect the CLI. In some cases, theRAN controller 902 may indicate to the RAN node 2 that the CLI can be mitigated by reducing a transmission power. For example, the CLI management indication may include an amount of excess CLI, for example X dB. In response, the RAN node 2 may reduce the transmission power for downlink signals and / or channels by X dB. The RAN node 2 may respond by transmitting a CONTROL ACKNOWLEDGE message including an indication that the CLI management indication was accepted and successfully applied. Additionally, or alternatively, the CONTROL ACKNOWLEDGE message may include an indication of the amount X dB by which the RAN node 2 reduced the transmission power.

[0147] In some other examples, the CLI management indication may include an amount of excess CLI, for example X dB. In response, the RAN node 2 may reduce the transmission power on some downlink signals and / or channels by X dB. The RAN node may respond by transmitting a CONTROL ACKNOWLEDGE message including an indication that the CLI management indication was accepted and successfully applied on the signals and channels. Additionally, or alternatively, the CONTROL ACKNOWLEDGE message may include an indication of the amount X dB by which the RAN node 2 reduces the transmission power on the signals and channels. The CONTROL ACKNOWLEDGE message may also include an indication of the signals and channels on which the power reduction is applied, such as when a transmission power of a signal or channel may not be reduced (e.g., for a synchronization signal or an SSB).

[0148] In some other examples, the CLI management indication may include an amount of excess CLI (e.g., X dB). In response, the RAN node 2 may reduce the transmission power on all or some downlink signals and / or channels by Y dB. The value of applied power reduction Y may, or may not, be equal to the value of the requested power reduction X. The RAN node 2 may respond by transmitting a CONTROL ACKNOWLEDGE message including an indication that the CLI management indication was accepted and successfully applied on the signals and channels, in addition to an indication of the amount Y dB by which the RAN node 2 reduces the transmission power.

[0149] In some other examples, the CLI management indication message may include an amount of excess CLI (e.g., X dB). In response, the RAN node 2 may reduce the transmission power on all or some downlink signals and / or channels by Y dB, which is not equal to X dB. The RAN node 2 may respond by transmitting a CONTROL FAILURE message including an indication that the CLI management indication was not fully applied. Additionally, or alternatively, theCONTROL FAILURE message may include an indication of the amount, Y dB, by which the RAN node 2 reduces the transmission power. In some other examples, the CLI management indication may include an amount of excess CLI (e.g., X dB). In response, the RAN node 2 may determine not to reduce the transmission power. The RAN node 2 may respond by transmitting a CONTROL FAILURE message including an indication that the CLI management indication was not accepted.

[0150] In some other examples, the CLI management indication may include an indication to reduce a transmission power. In response, the RAN node 2 may reduce the transmission power on all or some downlink signals and / or channels by Y dB. The RAN node 2 may respond by transmitting a CONTROL ACKNOWLEDGE message including an indication that the CLI management indication was accepted and successfully applied. Additionally, or alternatively, the CONTROL ACKNOWLEDGE message may include an indication of the amount, Y dB, by which the RAN node 2 reduced the transmission power. The RAN node 2 may send multiple messages (e.g., two messages) to convey the information. The messages may include a CONTROL ACKNOWLEDGE message and / or a CONTROL FAILURE message indicating whether the request from the RAN controller 902 was accepted and successfully applied, and an indication (REPORT) message indicating additional information such as X dB, Y dB, and / or the signals or channels on which power reduction is applied.

[0151] In some examples, an amount of power reduction may be indicated through the subscription procedure signaling. In one example, a power reduction of X dB is indicated through the subscription procedure signaling (e.g., as a parameter in subscription information). Then, the RAN node 2 may reduce the transmission power by X dB on all or some signals and / or channels upon receiving a CLI management indication that requests a transmission power reduction, possibly without an explicit indication of X dB. In some other examples, a sequence of power reduction values [XI, X2, ...] or a sequence of transmission powers [Pl, P2, ...] may be indicated through the subscription procedure signaling (e.g., one or more parameters in subscription information). Then, the RAN node 2 may reduce the transmission power by X[i] dB or reduce the transmission power from P[i] to P[i- 1] (or P[i+1]), on all or some signals and / or channels, where the index i may be decremented or incremented by the RAN node 2 upon receiving a CLI management indication that requests a transmission power reduction.

[0152] In some cases, a minimum and / or maximum transmission power may be preconfigured or otherwise defined, configured by the operator, indicated through the subscription procedure,and / or determined by implementation. If the RAN node 2 is requested to reduce the transmission power to less than the minimum, then the RAN node 2 may decline the request fully or partially and respond by sending a CONTROL FAILURE message. In some other cases, the RAN controller 902 may indicate to the RAN node 2 that the CLI can be mitigated by avoiding communications through one or more beams. The RAN controller 902 may indicate beams that cause excessive CLI in another cell based on CLI reports from other RAN nodes.

[0153] In some examples, the CLI management indication may include an indication of one or more beams [Bl, B2, ...] that cause excessive interference. In response, the RAN node 2 may avoid or refrain from communicating using the indicated beams and / or cancel communications scheduled for the indicated beams. The RAN node may respond by transmitting a CONTROL ACKNOWLEDGE message including an indication that the CLI management indication was accepted and successfully applied. Additionally, or alternatively, the CONTROL ACKNOWLEDGE message may include an indication of the one or more beams [Bl, B2, ...] that the RAN node 2 refrains from using for communications. In some other examples, the CLI management indication may include an indication of one or more beams [Bl, B2, ...] that cause excessive interference. In response, the RAN node 2 may determine to avoid or refrain from communicating using a subset of the indicated beams. The RAN node 2 may respond by transmitting a CONTROL ACKNOWLEDGE message including an indication that the CLI management indication was partially accepted and applied. Additionally, or alternatively, the CONTROL ACKNOWLEDGE message may include an indication of the subset of the beams that the RAN node 2 refrains from using for communications. In some other examples, the CLI management indication may include an indication of one or more beams [Bl, B2, ...] that cause excessive interference. In response, the RAN node 2 may determine to avoid or refrain from communicating using a subset of the indicated beams. The RAN node may respond by transmitting a CONTROL FAILURE message including an indication that the CLI management indication was not fully accepted and applied. Additionally, or alternatively, the CONTROL FAILURE message may include an indication of the subset of the beams that the RAN node 2 refrains from using for communications. In some other examples, the CLI management indication may include an indication of one or more beams [Bl, B2, ...] that cause excessive interference. In response, the RAN node 2 may determine that not to avoid or refrain from communicating using the indicated beams. The RAN node may respond by transmitting a CONTROL FAILURE message including anindication that the CLI management indication was not accepted. In variations, a beam may be indicated by a synchronization signal and / or SSB index, reference signal identifier, reference signal resource indicator, QCL relationship, TCI, direction, or the like.

[0154] In some cases, the RAN controller 902 may indicate to the RAN node 2 that the CLI can be mitigated by avoiding or refraining from communicating using one or more communication resources. The RAN controller 902 may indicate communication resources that cause excessive CLI in another cell based on CLI reports from other RAN nodes. For example, the CLI management indication may include an indication of one or more resources [Rl, R2, ...] that cause excessive interference. In response, the RAN node 2 may avoid or refrain from communicating using the indicated resources. The RAN node 2 may respond by transmitting a CONTROL ACKNOWLEDGE message including an indication that the CLI management indication was accepted and successfully applied. Additionally, or alternatively, the CONTROL ACKNOWLEDGE message may include an indication of the one or more resources [Rl, R2, ...] that the RAN node 2 refrains from using for communications. In some other examples, the CLI management indication may include an indication of one or more resources [Rl, R2, ...] that cause excessive interference. In response, the RAN node 2 may determine to avoid or refrain from communicating using a subset of the indicated resources. The RAN node may respond by transmitting a CONTROL ACKNOWLEDGE message including an indication that the CLI management indication was partially accepted and applied. Additionally, or alternatively, the CONTROL ACKNOWLEDGE message may include an indication of the subset of the resources that the RAN node 2 refrains from using for the communications.

[0155] In some other examples, the CLI management indication may include an indication of one or more resources [Rl, R2, ...] that cause excessive interference. In response, the RAN node 2 may determine to avoid or refrain from communicating on a subset of the indicated resources. The RAN node may respond by transmitting a CONTROL FAILURE message including an indication that the CLI management indication was not fully accepted and applied. Additionally, or alternatively, the CONTROL FAILURE message may include an indication of the subset of the resources that the RAN node 2 refrains from using for communications. In some other examples, the CLI management indication may include an indication of one or more resources [Rl, R2, ...] that cause excessive interference. In response, the RAN node 2 may determine not avoid or refrain from communicating using the indicated resources. The RAN node 2 may respond by transmitting aCONTROL FAILURE message including an indication that the CLI management indication was not accepted.

[0156] In some cases, the RAN controller 902 may indicate the communication resources as one or more of resources in a time domain (e.g., one or more symbols, slots, subframes, and / or frames), resources in the frequency domain (e.g., one or more subcarriers, PRBs, RBGs, sub-bands, BWPs, CCs, and / or frequency bands), resources in the spatial domain (e.g., one or more beams, beam groups, and / or directions), resources in a code domain, resources (e.g., in a time domain, a frequency domain, a spatial domain, and / or a code domain) associated with one or more signals or channels, resources associated with a stream, a QoS flow, a radio bearer, or the like, and / or resources associated with a network slice. A beam or beam group may be indicated by a relationship with a reference signal (e.g., a reference signal identifier, a synchronization signal index, an SSB index, and / or a QCL relationship). A signal or channel may be indicated by a configuration identifier, a resource identifier, or the like associated with the signal or channel.

[0157] In variations, the RAN controller 902 may indicate to the RAN node 2 that the CLI can be mitigated by any combination of the examples described herein. In some cases, the CLI management indication may include an indication of a transmission power reduction on one or more beams. In some other cases, the CLI management indication may include an indication of a transmission power reduction on one or more resources in a time domain and / or a frequency domain. In some other cases, the CLI management indication may include an indication of one or more beams and / or one or more resources that cause excessive CLI. In some other cases, the CLI management indication may include an indication of a transmission power reduction on one or more beams and / or one or more resources. In response to receiving the CLI management indication, the RAN node 2 may accept the request fully or partially and respond by a CONTROL ACKNOLWEDGE message or a CONTROL FAILURE message, accordingly. Additionally, or alternatively, the RAN node 2 may send additional information, such as an amount of power reduction, constrained beams, constrained resources, and the like in the CONTROL ACKNOWLEDGE message, the CONTROL failure message, or a separate indication (e.g., REPORT) message.

[0158] In some cases, when the RAN node 2 receives the CLI management indication indicating an action to perform for CLI mitigation, the RAN node 2 may accept the request, fully or partially, and perform the action (e.g., reduce a transmission power, constrain communications oncertain beams and / or resources, and the like). The RAN node 2 may follow a timing for applying the changes as preconfigured or otherwise defined, configured by the OAM or the network, indicated through the subscription procedure signaling, determined by an implementation, or any combination thereof. For example, the RAN node 2 may apply the changes without a delay after receiving and processing the CLI management indication. The RAN node 2 may reserve a duration for processing the CLI management indication. In some other examples, the RAN node 2 may apply the changes after a duration, T, from a time of receiving or processing the CLI management indication. The RAN node 2 may reduce a transmission power or constrain communications on certain beams or resources after the duration T, providing for the RAN node 2 to perform and complete any communications that were scheduled or configured prior to receiving and processing the CLI management indication. The RAN node 2 may, or may not, apply the changes during the duration T. The duration T may be indicated in units of slots, subframes, frames, ms, seconds, or the like. In some examples, the RAN node 2 may apply the changes indefinitely, for example, as long as the associated subscription is valid, as long as the associated subscription is not modified, and / or until another CLI management indication indicates to the RAN node 2 to override the applied changes. Additionally, or alternatively, in some examples, the RAN node 2 may apply the changes for a duration, P. The duration P may be preconfigured or otherwise defined, configured by the OAM or the network, indicated through the subscription procedure signaling, determined by an implementation, or any combination thereof.

[0159] In some examples, such as to reduce, or prevent, the underutilization of communication resources, a RAN node may perform an action upon failing to receive control signaling for a duration. For example, a temporary excess CLI may cause a reduction of the transmission power or a constraint for using beams or resources, but a RAN node may not know when to revert to an original transmission power or use of beams or resources. A RAN node 1 may send a CLI report to the RAN controller 902, followed by the RAN controller 902 sending control signaling to a RAN node 2 to perform a CLI mitigation action. The RAN node 2 may accept the control signaling and perform the CLI mitigation action (e.g., reduce a transmission power or limit communications on defined beams or resources). The RAN node 2 may not receive other control signaling associated with the CLI mitigation action. If the excess CLI that triggered the CLI mitigation action is temporary, then the RAN node 2 maintaining the CLI mitigation action may result in underutilization of radio resources by the RAN node 2.

[0160] In some cases, the RAN node 2 may reverse a transmission power reduction, fully or partially, if the RAN node 2 does not receive control signaling for a duration. In some examples, the RAN node 2 may increase the transmission power by Y dB, where Y dB is an amount of transmission power reduction according to an earlier CLI mitigation action, which may be referred to as a full reversal of power reduction. In some other examples, the RAN node 2 may increase the transmission power by Z dB, where Z is less than Y and is a fraction of an earlier transmission power reduction, which may be referred to as a partial reversal of power reduction. In some other examples, the RAN node 2 perform multiple partial reversals of power reduction upon not receiving associated control signaling for a duration or a portion of a duration, such as for additive-increase multiplicative-decrease (AIMD) control methods that aim at combining prompt response to a problem while utilizing a gradual return to normal operation once the problem is addressed.

[0161] In variations, the RAN node 2 may reverse a constraint on using beams or resources, fully or partially, if the RAN node 2 does not receive control signaling for a duration. A full reversal may be realized by using the beams or resources for subsequent communications. A partial reversal may be realized by using a subset or the beams or resources for subsequent communications. The RAN node 2 may perform multiple partial reversals by using a larger subset of the beams or resources that were constrained according to an earlier CLI mitigation action upon not receiving control signaling for a duration or a portion of a duration. The RAN node 2 may use any combination of the methods for performing one or more partial reversals. It should be noted that a constraint on the use of a beam or resource may be interpreted as reducing the transmission power to zero on the beam or resource. Therefore, the RAN node 2 may realize a method of partial reversal by using a constrained beam or resource at a relatively low transmission power (e.g., a transmission power that satisfies a threshold value). Then, if the RAN node 2 does not receive a request to reduce the transmission power for a duration (e.g., control signaling that indicates an excess CLI on the beam or resource), then the RAN node 2 may proceed with further increasing the transmission power on the beam or resource. The RAN node 2 may repeat the process of gradually increasing the transmission power until the RAN node 2 receives control signaling that indicates an excess CLI on the beam or resource and / or until the RAN node 2 reverts the transmission power to a transmission power used prior to performing the CLI management action.

[0162] In some examples, a capability of the RAN node 2 to perform a full or partial reversal of a CLI mitigation action may be configured by the network and / or 0AM, indicated in thesubscription procedure signaling, or determined by implementation. If the RAN node 2 is capable of performing the full or partial reversal of the CLI mitigation action, then the behavior and various parameters (e.g., the length of the duration or the method of full / partial reversal), may be configured by the network or OAM, indicated in the subscription procedure signaling, or determined by implementation. Alternatively, or additionally, the RAN controller 902 may implement a full and / or partial reversal behavior. For example, if the RAN controller 902 does not receive an excess CLI report from the RAN node 1 for a duration, then the RAN controller 902 may perform one or more control signaling procedures with the RAN node 2 to provide for the RAN node 2 to increase a reduced transmission power, use a constrained beam or resource, or both.

[0163] Figure 10 illustrates an example of signaling diagram 1000 in accordance with aspects of the present disclosure. In some examples, the signaling diagram 1000 may implement aspects of the wireless communications system 100, the wireless communications system 200, the RAN architecture diagram 300, the RAN layer diagram 400, the signaling diagram 500, the signaling diagram 600, the signaling diagram 700, the signaling diagram 900, and the signaling diagram 1000. The signaling diagram 1000 may illustrate an example of a framework for CLI management between a RAN controller 1002 and one or more RAN nodes 1004 (e.g., a RAN node 1 and a RAN node 2). The RAN controller 1002 and the RAN nodes 1004 may be examples of corresponding devices (e.g., a RAN node 202 and a CN 106, respectively) as described with reference to Figures 1 through 4. Alternative examples of the following may be implemented, where some processes are performed in a different order than described or are not performed. In some cases, processes may include additional features not mentioned below, or further processes may be added.

[0164] In some examples, although the signaling diagram 1000 illustrates two RAN nodes 1004, the processes may be performed by any numerical quantity of RAN nodes 1004 (e.g., one RAN node 1004, more than two RAN nodes 1004). For example, the processes described as being performed by the RAN node 1 may additionally, or alternatively, be performed by the RAN node 2.

[0165] At 1006, the RAN node 1, the RAN controller 1002, and / or the RAN node 2 may perform initial processes. The initial processes may be for a subscription procedure, including exchanging signaling related to the subscription procedure.

[0166] At 1008, the RAN controller 1002 and the RAN node 1 may perform a subscription procedure with a type of INSERT. For example, the RAN controller 1002 and the RAN node 1 may exchange signaling, as described with reference to Figure 5. The subscription procedure mayinclude one or more of a subscription signaling, a subscription modification signaling, and the like. The RAN controller 902 may transmit, in one or more messages in the subscription procedure, information for CLI reporting by the RAN node 1 to the RAN controller 902 through an INSERT service. The subscription procedure messages may include one or more of the following an indication of a reporting and / o insert action (e.g., Action = INSERT) and / or an indication that the value to be reported is a CLI (e.g., KPM = CLI). Additionally, or alternatively, the subscription procedure may indicate an event or condition that triggers CLI reporting. Lor example, the RAN controller 1002 may indicate to the RAN node 1 to send a CLI report periodically, upon CLI exceeding a threshold value, or both. The RAN controller 1002 may indicate to the RAN node 1, through the subscription procedure signaling, a value for a periodicity, a value for a CLI threshold, or any combination thereof.

[0167] Additionally, or alternatively, at 1010, the RAN controller 1002 and the RAN node 2 may perform a subscription procedure (e.g., with a type of REPORT, CONTROL, INSERT, etc.). Lor example, the subscription procedure may inform the RAN node 2 that the RAN controller 1002 may make a request to perform an action for managing CLI (e.g., Action = CONTROL) in the subscription procedure signaling.

[0168] At 1012, the RAN node 1 may determine a measure CLI satisfies a threshold value. In some examples, at 1014, the RAN Node 1 may initiate a timer for suspending a CLI measurement procedure. In some examples, at 1016, the RAN node 1 may send a CLI reporting message of a type of INSERT to the RAN controller 1002. The CLI reporting message may include a value of the measured CLI.

[0169] In some examples, at 1018, the RAN controller 1002 may receive and process the CLI measurements. Lor example, the RAN controller 1002 may process the reported CLI and determine one or more actions for the RAN node 2 and / or the RAN node 1 to perform to manage CLI. At 1020 the RAN controller 1002 may exchange (e.g., transmit and / or receive) a CONTROL procedure signaling with the RAN node 2. Additionally, or alternatively, at 1022, the RAN controller 1002 may exchange (e.g., transmit and / or receive) a CONTROL procedure signaling with the RAN node 1. Lor example, if the RAN controller 1002 determines an action for the RAN node 2 and / or the RAN node 1, then the RAN controller 1002 may send a CONTROL REQUEST message to the RAN node 2 and / or the RAN node 1 including information on an action to perform for managing CLI. The action may be to reduce a transmission power, reduce, terminate, or cancelcommunications on resources in a time domain, a frequency domain, and / or a spatial domain, or the like. For example, at 1024 in example A of a control procedure for the RAN node 1, the RAN controller 1002 may transmit a CLI management indication to the RAN node 1. The CLI management indication may include a CONTROL REQUEST message, as described with reference to Figure 9. In response, at 1026, the RAN node 1 may transmit a CLI management accept indication. In variations, at 1028, the RAN node 1 may cancel a timer and resume a CLI measurement procedure. For example, the RAN node 1 may resume a CLI measurement procedure suspended at 1014.

[0170] Additionally, or alternatively the RAN controller 1002 may transmit a CLI management indication to the RAN node 2. The RAN node 2 may process the request and determine whether to accept the request. If the RAN node 2 determines to accept the request, then the RAN node 2 attempts to apply the indicated action. If the RAN node 2 accepts the request and successfully applies the indicated action, then the RAN node 2 may respond by sending a CONTROL ACKNOWLEDGE message to the RAN controller 1002 indicating that the request was accepted and successful. Otherwise, the RAN node 2 may respond by sending a CONTROL FAILURE message to the RAN controller 1002 indicating that the request was not accepted or not successfully applied, as described with reference to Figure 9.

[0171] In variations, a RAN node may cause interference and experience interference concurrently (e.g., at a same time). Therefore, in some examples, the subscription procedure between the RAN controller 1002 and a RAN node 1004 may indicate to the RAN node 1004 to send a CLI report and process control requests to manage CLI. The subscription procedure signaling may indicate multiple actions. For example, the subscription procedure signaling may indicate multiple actions, including Action = INSERT and Action = CONTROL. In some examples, signaling for an INSERT subscription procedure may include signaling similar to signaling of a REPORT subscription procedure and / or a CONTROL subscription procedure.

[0172] In some examples, the timer for suspending a CLI measurement procedure may be referred to as a wait timer and / or a time-to-wait timer. The wait timer may be set to the maximum duration that a RAN node 1004 is expected to wait after sending an INSERT message to the RAN controller 1002. The value of this timer may be indicated in the subscription procedure signaling. In some examples, a value of wait time may be indicated by the subscription procedure signaling with type INSERT. In response, a RAN node may set the wait timer to the indicated value of wait timeand start counting down after sending an associated INSERT message. In some other examples, multiple values of wait time may be indicated by the subscription procedure signaling with type INSERT, where respective values of wait time are associated with one or more parameters for measuring the CLI (e.g., a CLI measure, a method of measuring the CLI, resources or beams associated with the CLI measurement, a UE or UE group, or the like). In response, the RAN node may set the wait timer to the wait time associated with the one or more parameters after sending an INSERT message that includes a CLI report in association with one or more of the one or more parameters. In some other examples, multiple values of wait time may be obtained by a relationship indicated by the subscription procedure, configured by the network and / or OAM, specified by the standard, determined by an implementation, or any combination thereof. In response, the RAN node may calculate a value of wait time based on the subscription, configuration, specification, and / or implementation, and then set the wait timer to the calculated wait time after sending an INSERT message that includes an associated CLI value.

[0173] In some examples, one or more subsequent actions may be indicated by the subscription procedure, configured by the network and / or OAM, preconfigured or otherwise defined, determined by an implementation, or any combination thereof. In response, if the RAN node sends an INSERT message, then the RAN node may determine a subsequent action based on the subscription, configuration, specification, and / or implementation, and then perform the subsequent action upon failing to receive signaling in response to the INSERT message before an associated wait timer expires.

[0174] In example B, the subsequent action is ‘resume’ or ‘continue.’ In response, when the wait timer expires, the RAN node 1 may resume a procedure instance that was suspended upon sending the INSERT message. For example, at 1030 the RAN node 1 may determine a timer expires and resume a CLI measurement procedure. The CLI measurement procedure may be the CLI measurement procedure suspended at 1014. At 1032, the RAN node 1 may transmit a CLI management failure indication.

[0175] In example C, the subsequent action is ‘halt’ or ‘terminate.’ In response, when the wait timer expires, the RAN node 1 may halt a procedure instance that was suspended upon sending the INSERT message. For example, at 1034 the RAN node 1 may determine a timer expires and suspend or cancel a CLI measurement procedure. The CLI measurement procedure may be the CLI measurement procedure suspended at 1014. At 1036, the RAN node 1 may transmit a CLImanagement failure indication. In some cases, the subsequent action is ‘suspend.’ In response, when the wait timer expires, the RAN node 1 may continue suspending a procedure instance that was suspended upon sending the INSERT message. This subsequent action may be similar to setting an infinite wait timer.

[0176] In some examples, the subsequent action is ‘partially resume.’ In response, when the wait timer expires, the RAN node 1 may partially resume a procedure instance that was suspended upon sending the INSERT message (e.g., the RAN node 1 may resume a subset of the procedure instance, resume the procedure instance in association with a subset of resources or parameters or devices, or the like). This subsequent action may be considered a tradeoff between ‘resume’ and ‘halt’ or between ‘resume’ and ‘suspend.’

[0177] Figure 11 illustrates an example of signaling diagram 1100 in accordance with aspects of the present disclosure. In some examples, the signaling diagram 1100 may implement aspects of the wireless communications system 100, the wireless communications system 200, the RAN architecture diagram 300, the RAN layer diagram 400, the signaling diagram 500, the signaling diagram 600, the signaling diagram 700, the signaling diagram 800, the signaling diagram 900, and the signaling diagram 1000. The signaling diagram 1100 may illustrate an example of a framework for CLI management between a RAN controller 1102 and one or more RAN nodes 1104 (e.g., a RAN node 1 and a RAN node 2). The RAN controller 1102 and the RAN nodes 1104 may be examples of corresponding devices (e.g., a RAN node 202 and a CN 106, respectively) as described with reference to Figures 1 through 4. Alternative examples of the following may be implemented, where some processes are performed in a different order than described or are not performed. In some cases, processes may include additional features not mentioned below, or further processes may be added.

[0178] In variations, a RAN node 1104 may cause interference and experience interference concurrently (e.g., at a same time). At 1106, the RAN controller 1102 may transmit a CLI management indication to a RAN node 1104. The CLI management indication may include a control request message including information on an action to perform for managing interference. The action may be to reduce a transmission power, refrain from performing communications using resources in a time domain, a frequency domain, and / or a spatial domain, or the like.

[0179] At 1108, the RAN node 1104 may determine whether to update communication parameters for CLI management. That is, the RAN node 1104 may process the request included inthe CLI management indication and may determine whether to accept the request. If the RAN node 1104 accepts the request, then the RAN node 1104 may attempt to perform an action specified by the CLI management indication.

[0180] In some cases, at 1110, the RAN node 1104 may transmit feedback to the RAN controller 1102. For example, if the RAN node 1104 accepts the request and applies the indicated action successfully, then the RAN node 1104 may respond by sending a CONTROL ACKNOWLEDGE message to the RAN controller 1102 indicating that the request was accepted and successful. In some other examples, if the RAN node 1104 does not accept the request and / or fails to apply the indicated action successfully, then the RAN node 1104 may respond by sending a CONTROL FAILURE message to the RAN controller 902 indicating that the request was not accepted or not successfully applied.

[0181] In some examples, a configuration may be provided by one or more configurations in. An earlier configuration may provide a subset of parameters while a later configuration may provide another subset of parameters. Additionally, or alternatively, a later configuration may override values provided by an earlier configuration or a pre-configuration. A configuration may be provided by Xn and / or NG signaling, RRC signaling, MAC signaling, a physical layer signaling such as a downlink control information (DCI) message, any combination thereof, among other signaling. A configuration may include a pre-configuration or a semi-static configuration defined, configured by a vendor, and / or by a network or operator (e.g., an 0AM). Respective parameter values received through configuration or indication may override previous values for a similar parameter.

[0182] Although described in the context of I AB, the proposed solutions may be applicable to wireless relay nodes and other types of wireless communication entities. LI and / or L2 control signaling may refer to control signaling in layer 1 (physical layer) or layer 2 (data link layer). Particularly, an LI and / or L2 control signaling may refer to an LI control signaling such as a DCI message or an uplink control information (UCI) message, an L2 control signaling such as a MAC message, or any combination thereof. A format and an interpretation of an LI and / or L2 control signaling may be determined by the standard, a configuration, other control signaling, or any combination thereof.

[0183] IE may refer to a configuration for L3 signaling, and higher. An IE may be included in a message from one layer to another layer or from one entity to another entity. Additionally, oralternatively, another IE may include an IE. In the present disclosure, the terms ‘IE’ and ‘message’ may be used interchangeably when the message includes the IE directly or indirectly. Any parameter discussed in this disclosure may appear, in practice, as a linear function of that parameter in signaling or specifications.

[0184] In some examples, a measurement may be performed on resources that may not be configured for reference signals, but rather a node may measure a receive signal power and obtain a RSSI, or the like. A beam indication may refer to an indication of a reference signal by an identifier or indicator, a resource associated with a reference signal, a spatial relation information including information of a reference signal or a reciprocal of a reference signal (e.g., in the case of beam correspondence). Any type of reference signal, such as a new type of CLI reference signals (CLI- RS) may be used for CLI measurements. The term ‘signaling’ in the present disclosure may refer to sending and / or receiving one or more messages. The medium for the communications maybe wired and / or wireless. In some examples, the interface may be an E2 interface. The terms ‘signaling’ and ‘message’ may be used interchangeably. A RAN node in the present disclosure may refer to one or more of a base station (e.g., a gNB, an eNB, a 6G NodeB); a unit in a base station, such as a CU, CU-CP, CU-UP, DU, RU, O-CU, O-CU-CP, O-CU-UP, 0-DU, O-RU; an E2 node or an 01 node. A control entity may be an RIC or a platform thereof, a near-real-time RIC, a non-real-time RIC, an App such as an ‘xApp’ on a near-real-time RIC or an ‘rApp’ on a non-real-time RIC, a network function, a virtualized network function, a RAN function, a virtualized RAN function, or the like.

[0185] Figure 12 illustrates an example of a RAN node 1200 in accordance with aspects of the present disclosure. The RAN node 1200 may include a processor 1202, a memory 1204, a controller 1206, and a transceiver 1208. The processor 1202, the memory 1204, the controller 1206, or the transceiver 1208, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. These components may be coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces.

[0186] The processor 1202, the memory 1204, the controller 1206, or the transceiver 1208, or various combinations or components thereof may be implemented in hardware (e.g., circuitry). The hardware may include a processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), or other programmable logic device, or any combination thereofconfigured as or otherwise supporting a means for performing the functions described in the present disclosure.

[0187] The processor 1202 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination thereof). In some implementations, the processor 1202 may be configured to operate the memory 1204. In some other implementations, the memory 1204 may be integrated into the processor 1202. The processor 1202 may be configured to execute computer-readable instructions stored in the memory 1204 to cause the RAN node 1200 to perform various functions of the present disclosure.

[0188] The memory 1204 may include volatile or non-volatile memory. The memory 1204 may store computer-readable, computer-executable code including instructions when executed by the processor 1202 cause the RAN node 1200 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as the memory 1204 or another type of memory. Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.

[0189] In some implementations, the processor 1202 and the memory 1204 coupled with the processor 1202 may be configured to cause the RAN node 1200 to perform one or more of the functions described herein (e.g., executing, by the processor 1202, instructions stored in the memory 1204). For example, the processor 1202 may support wireless communication at the RAN node 1200 in accordance with examples as disclosed herein. The RAN node 1200 may be configured to or operable to support a means for receiving, from a RAN controller, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management, transmitting, to the RAN controller, a second message that indicates an acceptance of the subscription information, receiving, from the RAN controller, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management, and transmitting, to the RAN controller, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

[0190] Additionally, the RAN node 1200 may be configured to support any one or combination of performing the wireless communications based on updating the at least one parameter for the wireless communications, where the feedback includes a control acknowledge message indicating that the at least one parameter for the wireless communications is updated. The control acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one or more communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications. The RAN node 1200 may be configured to support performing the wireless communications based on partially updating the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating that the at least one parameter for the wireless communications is partially updated. The control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to the partially updated at least one parameter for the wireless communications, one or more communication channels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications. The RAN node 1200 may be configured to support performing the wireless communications based on maintaining the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating the at least one parameter for the wireless communications is maintained. Performing the wireless communications based on maintaining the at least one parameter further includes determining the update to the at least one parameter for the wireless communications fails to satisfy a threshold value associated with the at least one parameter for the wireless communications.

[0191] Additionally, the RAN node 1200 may be configured to support any one or combination of transmitting, to the RAN controller, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resourcescorresponding to the update to the at least one parameter for the wireless communications. The RAN node 1200 may be configured to support updating the at least one parameter for the wireless communications according to a time period. The time period includes at least one of a delay prior to updating the at least one parameter for the wireless communications or duration for applying the update to the at least one parameter for the wireless communications. The RAN node 1200 may be configured to support receiving, from the RAN controller, a fifth message that triggers cancelation of the update to the at least one parameter for the wireless communications, where the time period is based on the fifth message. The method further includes gradually reversing the update to the at least one parameter for the wireless communications during the time period.

[0192] Additionally, the RAN node 1200 may be configured to support any one or combination of transmitting, to the RAN controller and prior to receiving the first message, a fifth message indicating one or more of a capability of the RAN node corresponding to the interference management. The RAN node 1200 may be configured to support transmitting, to the RAN controller and prior to receiving the first message, a fifth message based on a measured CLI value satisfying a threshold value. The CLI value comprises at least one of an RSRP, an RSSI, an SINR, or an RSRQ. The fifth message includes a value indicating a type of the fifth message is a report type associated with a CLI measurement procedure, and where the fifth message is associated with the CLI measurement procedure. The RAN node 1200 may be configured to support activating, based on receiving the fifth message, one or more timers associated with suspending a CLI measurement procedure and suspending the CLI measurement procedure until expiry of the one or more timers. The RAN node 1200 may be configured to support receiving a sixth message that indicates the one or more timers, and where a value of the one or more timers corresponds to respective parameters associated with the CLI measurement procedure. The RAN node 1200 may be configured to support at least partially resuming the CLI measurement procedure upon expiry of the one or more timers. The RAN node 1200 may be configured to support terminating the CLI measurement procedure upon expiry of the one or more timers. The method further includes suspending the CLI measurement procedure upon expiry of the one or more timers until detecting a trigger to resume the CLI measurement procedure. The one or more timers include one or more time-to-wait timers. The fifth message includes a value indicating a type of the fifth message is an insert type associated with the interference management.

[0193] Additionally, the RAN node 1200 may be configured to support any one or combination of the at least one parameter for the wireless communications includes a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, an SSB index, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a TCI, a transmission direction, or one or more communication resources for the wireless communications. The third message includes at least one of an indication that a CLI value satisfies a threshold value, a beam indication, a communication resource indication, or an indication that the third message includes a control request associated with a control service. The at least one parameter indicative of the subscription information being associated with the interference management includes a value indicating a type of the first message is a control type associated with the interference management. The RAN node includes a base station, a CU, a DU, an E2 node, or an 01 node, and where the RAN controller includes a RIC, a near-real-time RIC, or a non-real-time RIC.

[0194] Additionally, or alternatively, the RAN node 1200 may support at least one memory (e.g., the memory 1204) and at least one processor (e.g., the processor 1202) coupled with the at least one memory and configured to cause the RAN node 1200 to: receive, from a RAN controller, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management, transmit, to the RAN controller, a second message that indicates an acceptance of the subscription information, receive, from the RAN controller, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management, and transmit, to the RAN controller, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

[0195] Additionally, the RAN node 1200 may be configured to support any one or combination of the at least one processor is configured to perform the wireless communications based on updating the at least one parameter for the wireless communications, where the feedback includes a control acknowledge message indicating that the at least one parameter for the wireless communications is updated. The control acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one ormore communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications. The at least one processor is configured to perform the wireless communications based on partially updating the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating that the at least one parameter for the wireless communications is partially updated. The control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to the partially updated at least one parameter for the wireless communications, one or more communication channels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications.

[0196] Additionally, the RAN node 1200 may be configured to support any one or combination of the at least one processor is configured to perform the wireless communications based on maintaining the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating the at least one parameter for the wireless communications is maintained. To perform the wireless communications based on maintaining the at least one parameter, the at least one processor is configured to determine the update to the at least one parameter for the wireless communications fails to satisfy a threshold value associated with the at least one parameter for the wireless communications. The at least one processor is configured to transmit, to the RAN controller, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resources corresponding to the update to the at least one parameter for the wireless communications. The at least one processor is configured to update the at least one parameter for the wireless communications according to a time period. The time period includes at least one of a delay prior to updating the at least one parameter for the wireless communications or duration for applying the update to the at least one parameter for the wireless communications. The at least one processor is configured to receive, from the RANcontroller, a fifth message that triggers cancelation of the update to the at least one parameter for the wireless communications, where the time period is based on the fifth message. The at least one processor is configured to gradually reverse the update to the at least one parameter for the wireless communications during the time period.

[0197] Additionally, the RAN node 1200 may be configured to support any one or combination of the at least one processor is configured to transmit, to the RAN controller and prior to receiving the first message, a fifth message indicating one or more of a capability of the RAN node corresponding to the interference management. The at least one processor is configured to transmit, to the RAN controller and prior to receiving the first message, a fifth message based on a measured CLI value satisfying a threshold value. The CLI value comprises at least one of an RSRP, an RSSI, an SINR, or an RSRQ. The fifth message includes a value indicating a type of the fifth message is a report type associated with a CLI measurement procedure, and where the fifth message is associated with the CLI measurement procedure. The at least one processor is configured to activate, based on transmitting the fifth message, one or more timers associated with suspending a CLI measurement procedure and suspend the CLI measurement procedure until expiry of the one or more timers. The at least one processor is configured to receive a sixth message that indicates the one or more timers, and where a value of the one or more timers corresponds to respective parameters associated with the CLI measurement procedure. The at least one processor is configured to at least partially resume the CLI measurement procedure upon expiry of the one or more timers. The at least one processor is configured to terminate the CLI measurement procedure upon expiry of the one or more timers. The at least one processor is configured to suspend the CLI measurement procedure upon expiry of the one or more timers until detecting a trigger to resume the CLI measurement procedure. The one or more timers include one or more time-to-wait timers. The fifth message includes a value indicating a type of the fifth message is an insert type associated with the interference management.

[0198] Additionally, the RAN node 1200 may be configured to support any one or combination of the at least one parameter for the wireless communications includes a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, an SSB index, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a TCI, a transmission direction, or one or more communication resources for the wireless communications.The third message includes at least one of an indication that a CLI value satisfies a threshold value, a beam indication, a communication resource indication, or an indication that the third message includes a control request associated with a control service. The at least one parameter indicative of the subscription information being associated with the interference management includes a value indicating a type of the first message is a control type associated with the interference management. The RAN node includes a base station, a CU, a DU, an E2 node, or an 01 node, and where the RAN controller includes an RIC, a near-real-time RIC, or a non-real-time RIC.

[0199] The controller 1206 may manage input and output signals for the RAN node 1200. The controller 1206 may also manage peripherals not integrated into the RAN node 1200. In some implementations, the controller 1206 may utilize an operating system such as iOS®, ANDROID®, WINDOWS®, or other operating systems. In some implementations, the controller 1206 may be implemented as part of the processor 1202.

[0200] In some implementations, the RAN node 1200 may include at least one transceiver 1208. In some other implementations, the RAN node 1200 may have more than one transceiver 1208. The transceiver 1208 may represent a wireless transceiver. The transceiver 1208 may include one or more receiver chains 1210, one or more transmitter chains 1212, or any combination thereof.

[0201] A receiver chain 1210 may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receiver chain 1210 may include one or more antennas to receive a signal over the air or wireless medium. The receiver chain 1210 may include at least one amplifier (e.g., a low-noise amplifier (LNA)) configured to amplify the received signal. The receiver chain 1210 may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receiver chain 1210 may include at least one decoder for decoding the demodulated signal to receive the transmitted data.

[0202] A transmitter chain 1212 may be configured to generate and transmit signals(e.g., control information, data, packets). The transmitter chain 1212 may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM), frequency modulation (FM), or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM). The transmitter chain 1212 may also include at least one power amplifier configured to amplify the modulated signal toan appropriate power level suitable for transmission over the wireless medium. The transmitter chain 1212 may also include one or more antennas for transmitting the amplified signal into the air or wireless medium.

[0203] Figure 13 illustrates an example of a processor 1300 in accordance with aspects of the present disclosure. The processor 1300 may be an example of a processor configured to perform various operations in accordance with examples as described herein. The processor 1300 may include a controller 1302 configured to perform various operations in accordance with examples as described herein. The processor 1300 may optionally include at least one memory 1304, which may be, for example, an L1 / L2 / L3 cache. Additionally, or alternatively, the processor 1300 may optionally include one or more arithmetic-logic units (ALUs) 1306. One or more of these components may be in electronic communication or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses).

[0204] The processor 1300 may be a processor chipset and include a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) in accordance with examples as described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to or included in the processor chipset (e.g., the processor 1300) or other memory (e.g., random access memory (RAM), read-only memory (ROM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), static RAM (SRAM), ferroelectric RAM (FeRAM), magnetic RAM (MRAM), resistive RAM (RRAM), flash memory, phase change memory (PCM), and others).

[0205] The controller 1302 may be configured to manage and coordinate various operations (e.g., signaling, receiving, obtaining, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, reading) of the processor 1300 to cause the processor 1300 to support various operations in accordance with examples as described herein. For example, the controller 1302 may operate as a control unit of the processor 1300, generating control signals that manage the operation of various components of the processor 1300. These control signals include enabling or disabling functional units, selecting data paths, initiating memory access, and coordinating timing of operations.

[0206] The controller 1302 may be configured to fetch (e.g., obtain, retrieve, receive) instructions from the memory 1304 and determine subsequent instruction(s) to be executed to causethe processor 1300 to support various operations in accordance with examples as described herein. The controller 1302 may be configured to track memory addresses of instructions associated with the memory 1304. The controller 1302 may be configured to decode instructions to determine the operation to be performed and the operands involved. For example, the controller 1302 may be configured to interpret the instruction and determine control signals to be output to other components of the processor 1300 to cause the processor 1300 to support various operations in accordance with examples as described herein. Additionally, or alternatively, the controller 1302 may be configured to manage flow of data within the processor 1300. The controller 1302 may be configured to control transfer of data between registers, ALUs 1306, and other functional units of the processor 1300.

[0207] The memory 1304 may include one or more caches (e.g., memory local to or included in the processor 1300 or other memory, such as RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some implementations, the memory 1304 may reside within or on a processor chipset (e.g., local to the processor 1300). In some other implementations, the memory 1304 may reside external to the processor chipset (e.g., remote to the processor 1300).

[0208] The memory 1304 may store computer-readable, computer-executable code including instructions that, when executed by the processor 1300, cause the processor 1300 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. The controller 1302 and / or the processor 1300 may be configured to execute computer-readable instructions stored in the memory 1304 to cause the processor 1300 to perform various functions. For example, the processor 1300 and / or the controller 1302 may be coupled with or to the memory 1304, the processor 1300, and the controller 1302, and may be configured to perform various functions described herein. In some examples, the processor 1300 may include multiple processors and the memory 1304 may include multiple memories. One or more of the multiple processors may be coupled with one or more of the multiple memories, which may, individually or collectively, be configured to perform various functions herein.

[0209] The one or more ALUs 1306 may be configured to support various operations in accordance with examples as described herein. In some implementations, the one or more ALUs 1306 may reside within or on a processor chipset (e.g., the processor 1300). In some other implementations, the one or more ALUs 1306 may reside external to the processor chipset (e.g., theprocessor 1300). One or more ALUs 1306 may perform one or more computations such as addition, subtraction, multiplication, and division on data. For example, one or more ALUs 1306 may receive input operands and an operation code, which determines an operation to be executed. One or more ALUs 1306 may be configured with a variety of logical and arithmetic circuits, including adders, subtractors, shifters, and logic gates, to process and manipulate the data according to the operation. Additionally, or alternatively, the one or more ALUs 1306 may support logical operations such as AND, OR, exclusive-OR (XOR), not-OR (NOR), and not-AND (NAND), enabling the one or more ALUs 1306 to handle conditional operations, comparisons, and bitwise operations.

[0210] The processor 1300 may support wireless communication in accordance with examples as disclosed herein. The processor 1300 may be configured to or operable to support at least one controller (e.g., the controller 1302) coupled with at least one memory (e.g., the memory 1304) and configured to cause the processor to: receive, from a RAN controller, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management, transmit, to the RAN controller, a second message that indicates an acceptance of the subscription information, receive, from the RAN controller, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management, and transmit, to the RAN controller, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

[0211] Additionally, the processor 1300 may be configured to or operable to support any one or combination of the at least one controller is configured to perform the wireless communications based on updating the at least one parameter for the wireless communications, where the feedback includes a control acknowledge message indicating that the at least one parameter for the wireless communications is updated. The control acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one or more communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications. The at least one controller is configured to perform the wireless communications based on partially updating the at least one parameter for the wirelesscommunications, where the feedback includes a control failure message indicating that the at least one parameter for the wireless communications is partially updated. The control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to the partially updated at least one parameter for the wireless communications, one or more communication channels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications.

[0212] Additionally, the processor 1300 may be configured to or operable to support any one or combination of the at least one controller is configured to perform the wireless communications based on maintaining the at least one parameter for the wireless communications, where the feedback includes a control failure message indicating the at least one parameter for the wireless communications is maintained. To perform the wireless communications based on maintaining the at least one parameter, the at least one controller is configured to determine the update to the at least one parameter for the wireless communications fails to satisfy a threshold value associated with the at least one parameter for the wireless communications. The at least one controller is configured to transmit, to the RAN controller, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resources corresponding to the update to the at least one parameter for the wireless communications.

[0213] Additionally, the processor 1300 may be configured to or operable to support any one or combination of the at least one controller is configured to update the at least one parameter for the wireless communications according to a time period. The time period includes at least one of a delay prior to updating the at least one parameter for the wireless communications or duration for applying the update to the at least one parameter for the wireless communications. The at least one controller is configured to receive, from the RAN controller, a fifth message that triggers cancelation of the update to the at least one parameter for the wireless communications, where the time period is based on the fifth message. The at least one controller is configured to graduallyreverse the update to the at least one parameter for the wireless communications during the time period. The at least one controller is configured to transmit, to the RAN controller and prior to receiving the first message, a fifth message indicating one or more of a capability of the processor corresponding to the interference management. The at least one controller is configured to transmit, to the RAN controller and prior to receiving the first message, a fifth message based on a measured CLI value satisfying a threshold value. The CLI value comprises at least one of an RSRP, an RSSI, an SINR, or an RSRQ. The fifth message includes a value indicating a type of the fifth message is a report type associated with a CLI measurement procedure, and where the fifth message is associated with the CLI measurement procedure. The at least one controller is configured to activate one or more timers associated with suspending a CLI measurement procedure and suspend the CLI measurement procedure until expiry of the one or more timers. The at least one controller is configured to receive a sixth message that indicates the one or more timers, and where a value of the one or more timers corresponds to respective parameters associated with the CLI measurement procedure. The at least one controller is configured to at least partially resume the CLI measurement procedure upon expiry of the one or more timers. The at least one controller is configured to terminate the CLI measurement procedure upon expiry of the one or more timers. The at least one controller is configured to suspend the CLI measurement procedure upon expiry of the one or more timers until detecting a trigger to resume the CLI measurement procedure. The one or more timers include one or more time-to-wait timers. The fifth message includes a value indicating a type of the fifth message is an insert type associated with the interference management.

[0214] Additionally, the processor 1300 may be configured to or operable to support any one or combination of the at least one parameter for the wireless communications includes a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, an SSB index, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a TCI, a transmission direction, or one or more communication resources for the wireless communications. The third message includes at least one of an indication that a CLI value satisfies a threshold value, a beam indication, a communication resource indication, or an indication that the third message includes a control request associated with a control service. The at least one parameter indicative of the subscription information being associated with the interferencemanagement includes a value indicating a type of the first message is a control type associated with the interference management. The processor is associated with a base station, a CU, a DU, an E2 node, or an 01 node, and where the RAN controller includes a RIC, a near-real-time RIC, or a non- real-time RIC.

[0215] Figure 14 illustrates an example of a RAN controller 1400 in accordance with aspects of the present disclosure. The RAN controller 1400 may include a processor 1402, a memory 1404, a controller 1406, and a transceiver 1408. The processor 1402, the memory 1404, the controller 1406, or the transceiver 1408, or various combinations thereof or various components thereof may be examples of means for performing various aspects of the present disclosure as described herein. These components may be coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces.

[0216] The processor 1402, the memory 1404, the controller 1406, or the transceiver 1408, or various combinations or components thereof may be implemented in hardware (e.g., circuitry). The hardware may include a processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), or other programmable logic device, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure.

[0217] The processor 1402 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination thereof). In some implementations, the processor 1402 may be configured to operate the memory 1404. In some other implementations, the memory 1404 may be integrated into the processor 1402. The processor 1402 may be configured to execute computer-readable instructions stored in the memory 1404 to cause the RAN controller 1400 to perform various functions of the present disclosure.

[0218] The memory 1404 may include volatile or non-volatile memory. The memory 1404 may store computer-readable, computer-executable code including instructions when executed by the processor 1402 cause the RAN controller 1400 to perform various functions described herein. The code may be stored in a non-transitory computer-readable medium such as the memory 1404 or another type of memory. Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.

[0219] In some implementations, the processor 1402 and the memory 1404 coupled with the processor 1402 may be configured to cause the RAN controller 1400 to perform one or more of the functions described herein (e.g., executing, by the processor 1402, instructions stored in the memory 1404). For example, the processor 1402 may support wireless communication at the RAN controller 1400 in accordance with examples as disclosed herein. The RAN controller 1400 may be configured to or operable to support a means for transmitting, to a RAN node, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management, receiving, from the RAN node, a second message that indicates an acceptance of the subscription information, transmitting, to the RAN node, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management, and receiving, from the RAN node, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

[0220] Additionally, the RAN controller 1400 may be configured to or operable to support any one or combination of the feedback includes a control acknowledge message indicating that the at least one parameter for the wireless communications is updated. The control acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one or more communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications. The feedback includes a control failure message indicating that the at least one parameter for the wireless communications is partially updated. The control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to the partially updated at least one parameter for the wireless communications, one or more communication channels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications. The feedback includes a control failure message indicating the at least one parameter for the wireless communications is maintained.

[0221] Additionally, the RAN controller 1400 may be configured to or operable to support any one or combination of the method further including receiving, from the RAN node, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resources corresponding to the update to the at least one parameter for the wireless communications. The method further includes transmitting, to the RAN node, a fifth message that triggers cancelation of the update to the at least one parameter, where a time period for applying the update to the at least one parameter for the wireless communications is based on the fifth message. The method further includes receiving, from the RAN node and prior to transmitting the first message, a fifth message indicating one or more of a capability of the RAN node corresponding to the interference management. The method further includes receiving, from the RAN node and prior to transmitting the first message, a fifth message based on a measured CLI value satisfying a threshold value. The CLI value comprises at least one of an RSRP, an RSSI, an SINR, or an RSRQ. The fifth message includes a value indicating a type of the fifth message is a report type associated with a CLI measurement procedure, and where the fifth message is associated with the CLI measurement procedure. The fifth message indicates a suspension of a CLI measurement procedure based on one or more timers. The method further includes transmitting a sixth message that indicates the one or more timers, and where a value of the one or more timers corresponds to respective parameters associated with the CLI measurement procedure. The one or more timers include one or more time-to-wait timers. The fifth message includes a value indicating a type of the fifth message is an insert type associated with the interference management.

[0222] Additionally, the RAN controller 1400 may be configured to or operable to support any one or combination of the at least one parameter for the wireless communications includes a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, an SSB index, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a TCI, a transmission direction, or one or more communication resources for the wireless communications. The third message includes at least one of an indication that a CLI value satisfies a threshold value, a beam indication, a communication resource indication, or an indicationthat the third message includes a control request associated with a control service. The at least one parameter indicative of the subscription information being associated with the interference management includes a value indicating a type of the first message is a control type associated with the interference management. The RAN node includes a base station, a CU, a DU, an E2 node, or an 01 node, and where the RAN controller includes a RIC, a near-real-time RIC, or a non-real-time RIC.

[0223] Additionally, or alternatively, the RAN controller 1400 may support at least one memory (e.g., the memory 1404) and at least one processor (e.g., the processor 1402) coupled with the at least one memory and configured to cause the RAN controller 1400 to: transmit, to a RAN node, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management, receive, from the RAN node, a second message that indicates an acceptance of the subscription information, transmit, to the RAN node, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management, and receive, from the RAN node, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

[0224] Additionally, the RAN controller 1400 may be configured to support any one or combination of the feedback includes a control acknowledge message indicating that the at least one parameter for the wireless communications is updated. The control acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one or more communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications. The feedback includes a control failure message indicating that the at least one parameter for the wireless communications is partially updated. The control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to the partially updated at least one parameter for the wireless communications, one or more communication channels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications. Thefeedback includes a control failure message indicating the at least one parameter for the wireless communications is maintained. The RAN controller 1400 may be configured to receive, from the RAN node, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resources corresponding to the update to the at least one parameter for the wireless communications. The RAN controller 1400 may be configured to transmit, to the RAN node, a fifth message that triggers cancelation of the update to the at least one parameter, where a time period for applying the update to the at least one parameter for the wireless communications is based on the fifth message.

[0225] Additionally, the RAN controller 1400 may be configured to support any one or combination of to receive, from the RAN node and prior to transmitting the first message, a fifth message indicating one or more of a capability of the RAN node corresponding to the interference management. The RAN controller 1400 may be configured to receive, from the RAN node and prior to transmitting the first message, a fifth message based on a measured CLI value satisfying a threshold value. The CLI value comprises at least one of an RSRP, an RSSI, an SINR, or an RSRQ. The fifth message includes a value indicating a type of the fifth message is a report type associated with a CLI measurement procedure, and where the fifth message is associated with the CLI measurement procedure. The fifth message indicates a suspension of a CLI measurement procedure based on one or more timers. The RAN controller 1400 may be configured to transmit a sixth message that indicates the one or more timers, and where a value of the one or more timers corresponds to respective parameters associated with the CLI measurement procedure. The one or more timers include one or more time-to-wait timers. The fifth message includes a value indicating a type of the fifth message is an insert type associated with the interference management.

[0226] Additionally, the RAN controller 1400 may be configured to support any one or combination of the at least one parameter for the wireless communications includes a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, an SSB index, a reference signal identifier, a reference signal resource indicator, a QCL relationship, a TCI, a transmission direction, or one or more communication resources for the wirelesscommunications. The third message includes at least one of an indication that a CLI value satisfies a threshold value, a beam indication, a communication resource indication, or an indication that the third message includes a control request associated with a control service. The at least one parameter indicative of the subscription information being associated with the interference management includes a value indicating a type of the first message is a control type associated with the interference management. The RAN node includes a base station, a CU, a DU, an E2 node, or an 01 node, and where the RAN controller includes a RIC, a near-real-time RIC, or a non-real-time RIC.

[0227] The controller 1406 may manage input and output signals for the RAN controller 1400. The controller 1406 may also manage peripherals not integrated into the RAN controller 1400. In some implementations, the controller 1406 may utilize an operating system such as iOS®, ANDROID®, WINDOWS®, or other operating systems. In some implementations, the controller 1406 may be implemented as part of the processor 1402.

[0228] In some implementations, the RAN controller 1400 may include at least one transceiver 1408. In some other implementations, the RAN controller 1400 may have more than one transceiver 1408. The transceiver 1408 may represent a wireless transceiver. The transceiver 1408 may include one or more receiver chains 1410, one or more transmitter chains 1412, or any combination thereof.

[0229] A receiver chain 1410 may be configured to receive signals (e.g., control information, data, packets) over a wireless medium. For example, the receiver chain 1410 may include one or more antennas to receive a signal over the air or wireless medium. The receiver chain 1410 may include at least one amplifier (e.g., a low-noise amplifier (LNA)) configured to amplify the received signal. The receiver chain 1410 may include at least one demodulator configured to demodulate the receive signal and obtain the transmitted data by reversing the modulation technique applied during transmission of the signal. The receiver chain 1410 may include at least one decoder for decoding the demodulated signal to receive the transmitted data.

[0230] A transmitter chain 1412 may be configured to generate and transmit signals (e.g., control information, data, packets). The transmitter chain 1412 may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques such as amplitude modulation (AM), frequency modulation (FM), or digital modulation schemes like phase-shift keying (PSK) or quadrature amplitude modulation (QAM). The transmitter chain1412 may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over the wireless medium. The transmitter chain 1412 may also include one or more antennas for transmitting the amplified signal into the air or wireless medium.

[0231] Figure 15 illustrates a flowchart of a method 1500 in accordance with aspects of the present disclosure. The operations of the method may be implemented by a RAN node as described herein. In some implementations, the RAN node may execute a set of instructions to control the function elements of the RAN node to perform the described functions. It should be noted that the method described herein describes a possible implementation, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible.

[0232] At 1502, the method may include receiving, from a RAN controller, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management. The operations of 1502 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1502 may be performed by a RAN node as described with reference to Figure 12.

[0233] At 1504, the method may include transmitting, to the RAN controller, a second message that indicates an acceptance of the subscription information. The operations of 1504 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1504 may be performed by a RAN node as described with reference to Figure 12.

[0234] At 1506, the method may include receiving, from the RAN controller, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management. The operations of 1506 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1506 may be performed a RAN node as described with reference to Figure 12.

[0235] At 1508, the method may include selectively transmitting, to the RAN controller, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications. The operations of 1508 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1508 may be performed a RAN node as described with reference to Figure 12.

[0236] Figure 16 illustrates a flowchart of a method 1600 in accordance with aspects of the present disclosure. The operations of the method may be implemented by a RAN controller as described herein. In some implementations, the RAN controller may execute a set of instructions to control the function elements of the RAN controller to perform the described functions. It should be noted that the method described herein describes a possible implementation, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible.

[0237] At 1602, the method may include transmitting, to a RAN node, a first message that indicates subscription information including at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management. The operations of 1602 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1602 may be performed by a RAN controller as described with reference to Figure 14.

[0238] At 1604, the method may include receiving, from the RAN node, a second message that indicates an acceptance of the subscription information. The operations of 1604 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1604 may be performed by a RAN controller as described with reference to Figure 14.

[0239] At 1606, the method may include transmitting, to the RAN node, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management. The operations of 1606 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1606 may be performed a RAN controller as described with reference to Figure 14.

[0240] At 1608, the method may include receiving, from the RAN node, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications. The operations of 1608 may be performed in accordance with examples as described herein. In some implementations, aspects of the operations of 1608 may be performed a RAN controller as described with reference to Figure 14.

[0241] The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited tothe examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

CLAIMSWhat is claimed is:

1. A radio access network (RAN) node for wireless communication, comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the RAN node to: receive, from a RAN controller, a first message that indicates subscription information comprising at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management; transmit, to the RAN controller, a second message that indicates an acceptance of the subscription information; receive, from the RAN controller, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management; and transmit, to the RAN controller, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

2. The RAN node of claim 1 , wherein the at least one processor is further configured to cause the RAN node to perform the wireless communications based on updating the at least one parameter for the wireless communications, wherein the feedback comprises a control acknowledge message indicating that the at least one parameter for the wireless communications is updated, and wherein the control acknowledge message indicates one or more of a value corresponding to the updated at least one parameter for the wireless communications, one or more signals corresponding to the updated at least one parameter for the wireless communications, one or more communication channels corresponding to the updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the updated at least one parameter for the wireless communications.

3. The RAN node of claim 1, wherein the at least one processor is further configured to cause the RAN node to perform the wireless communications based on partially updating the atleast one parameter for the wireless communications, wherein the feedback comprises a control failure message indicating that the at least one parameter for the wireless communications is partially updated, and wherein the control failure message indicates one or more of a value corresponding to the partially updated at least one parameter for the wireless communications, one or more signals corresponding to the partially updated at least one parameter for the wireless communications, one or more communication channels corresponding to the partially updated at least one parameter for the wireless communications, or one or more communication resources corresponding to the partially updated at least one parameter for the wireless communications.

4. The RAN node of claim 1 , wherein the at least one processor is further configured to cause the RAN node to perform the wireless communications based on maintaining the at least one parameter for the wireless communications, wherein the feedback comprises a control failure message indicating the at least one parameter for the wireless communications is maintained.

5. The RAN node of claim 4, wherein, to perform the wireless communications based on maintaining the at least one parameter, the at least one processor is further configured to cause the RAN node to determine the update to the at least one parameter for the wireless communications fails to satisfy a threshold value associated with the at least one parameter for the wireless communications.

6. The RAN node of claim 1 , wherein the at least one processor is further configured to cause the RAN node to transmit, to the RAN controller, a fifth message that indicates at least one of a value corresponding to the update to the at least one parameter for the wireless communications, one or more signals corresponding to the update to the at least one parameter for the wireless communications, one or more communication channels corresponding to the update to the at least one parameter for the wireless communications, or one or more communication resources corresponding to the update to the at least one parameter for the wireless communications.

7. The RAN node of claim 1, wherein the at least one processor is further configured to cause the RAN node to update the at least one parameter for the wireless communications according to a time period, wherein the time period comprises at least one of a delay prior to updating the at least one parameter for the wireless communications or duration for applying the update to the at least one parameter for the wireless communications.

8. The RAN node of claim 7, wherein the at least one processor is further configured to cause the RAN node to receive, from the RAN controller, a fifth message that triggers cancelation of the update to the at least one parameter for the wireless communications, wherein the time period is based on the fifth message.

9. The RAN node of claim 7, wherein the at least one processor is further configured to cause the RAN node to gradually reverse the update to the at least one parameter for the wireless communications during the time period.

10. The RAN node of claim 1, wherein the at least one processor is further configured to cause the RAN node to transmit, to the RAN controller and prior to receiving the first message, a fifth message indicating one or more of a capability of the RAN node corresponding to the interference management.

11. The RAN node of claim 1 , wherein the at least one processor is further configured to cause the RAN node to transmit, to the RAN controller and prior to receiving the first message, a fifth message based on a measured cross-link interference value satisfying a threshold value, wherein the cross-link interference value comprises at least one of a reference signal received power, a received signal strength indicator, a signal to interference plus noise ratio, or a reference signal received quality, and wherein the fifth message comprises a value indicating a type of the fifth message is a report type associated with a cross-link interference measurement procedure, and wherein the fifth message is associated with the cross-link interference measurement procedure.

12. The RAN node of claim 11, wherein the at least one processor is further configured to cause the RAN node to: activate, based on transmitting the fifth message, one or more timers associated with suspending a cross-link interference measurement procedure; and suspend the cross-link interference measurement procedure until expiry of the one or more timers.

13. The RAN node of claim 12, wherein the at least one processor is further configured to cause the RAN node to:at least partially resume the cross-link interference measurement procedure upon expiry of the one or more timers; or terminate the cross-link interference measurement procedure upon expiry of the one or more timers.

14. The RAN node of claim 12, wherein the at least one processor is further configured to cause the RAN node to suspend the cross-link interference measurement procedure upon expiry of the one or more timers until detecting a trigger to resume the cross-link interference measurement procedure.

15. The RAN node of claim 1, wherein the at least one parameter for the wireless communications comprises a transmission power for the wireless communications, a sequence of transmission power reduction values for the wireless communications, a sequence of transmission powers for the wireless communications, a synchronization signal block index, a reference signal identifier, a reference signal resource indicator, a quasi co-located relationship, a transmission configuration indicator, a transmission direction, or one or more communication resources for the wireless communications.

16. The RAN node of claim 1, wherein the third message comprises at least one of an indication that a cross-link interference value satisfies a threshold value, a beam indication, a communication resource indication, or an indication that the third message comprises a control request associated with a control service.

17. The RAN node of claim 1, wherein the at least one parameter indicative of the subscription information being associated with the interference management comprises a value indicating a type of the first message is a control type associated with the interference management, and wherein the RAN node comprises a base station, a central unit, a distributed unit, an E2 node, or an 01 node, and wherein the RAN controller comprises a RAN intelligent controller (RIC), a near-real-time RIC, or a non-real-time RIC.

18. A processor for wireless communication, comprising: at least one controller coupled with at least one memory and configured to cause the processor to:receive, from a radio access network (RAN) controller, a first message that indicates subscription information comprising at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management; transmit, to the processor, a second message that indicates an acceptance of the subscription information; receive, from the RAN controller, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management; and transmit, to the processor, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

19. A method performed by a radio access network (RAN) node, the method comprising: receiving, from a RAN controller, a first message that indicates subscription information comprising at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management; transmitting, to the RAN controller, a second message that indicates an acceptance of the subscription information; receiving, from the RAN controller, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management; and transmitting, to the RAN controller, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

20. A radio access network (RAN) controller for wireless communication, comprising: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the RAN controller to: transmit, to a RAN node, a first message that indicates subscription information comprising at least one parameter for wireless communications and at least one parameter indicative of the subscription information being associated with interference management; receive, from the RAN node, a second message that indicates an acceptance of the subscription information;transmit, to the RAN node, a third message that indicates an update to the at least one parameter for the wireless communications based on the interference management; and receive, from the RAN node, a fourth message that indicates feedback based on the update the at least one parameter for the wireless communications.

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