CN120712819A

CN120712819A - Reporting mechanism for AI/ML related information

Info

Publication number: CN120712819A
Application number: CN202380094262.6A
Authority: CN
Inventors: 陈嘉君; 李大鹏; 高音
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2025-09-26
Also published as: WO2024098580A1; EP4652763A1

Abstract

A method includes a first radio access network node providing a reporting feature indication indicating one or more requested measurements to be performed by a second radio access network node as part of a request message sent to the second radio access network node and a partial reporting indication information element (I E) indicating whether partial reporting is allowed. Alternatively or additionally, the method comprises the second radio access network node determining which of the one or more requested measurements it is capable of performing and sending a message request response to the first radio access network node, the message request response comprising a success reporting feature I E or an unsuccessful reporting feature I E, the success reporting feature I E indicating which of the one or more requested measurements of the request message are successfully indicated, the unsuccessful reporting feature I E indicating which of the one or more requested measurements of the request information are unsuccessfully indicated.

Description

Reporting mechanism for AI/ML related information

Technical Field

The present disclosure relates generally to mechanisms for reporting artificial intelligence or machine learning (AI/ML) related information.

Background

In cellular networks, a base station (also referred to as a radio access network node or WANN) often requests various reports from other base stations and receives reports from other base stations. One such example report is a resource status report initiated between base stations. As shown in fig. 3, a first base station 302 (e.g., a first next generation radio access network (NG-RAN) node) may request a resource status report from a second base station 304 (e.g., a second NG-RAN node) using a resource status initiation procedure. The first base station 302 can initiate the process by sending a resource status request message (RESOURCE STATUS REQUEST message) 306 to the second base station 304 to begin measurements related to the requested feature in accordance with the request message 306. The type of reporting feature Information Element (IE) is a bit string. Each location in the bitmap indicates the measurement object that the second base station 304 is requested to report. If the second base station 304 is able to provide all the requested resource status information, it will initiate a measurement upon request by the first base station 302 and respond with a resource status response message (RESOURCE STATUS RESPONSE message) 308. However, if it cannot provide all the requested resource status information, the second base station 304 will respond with a resource status failure message (RESOURCE STATUS FAILURE message) 310. The second base station 304 will then measure the requested resource status 312 and will then initiate a resource status update message (RESOURCE STATUS UPDATE message) 314 to the first base station 302 to report the measurement results. Other requests and procedures are also known.

Disclosure of Invention

The present disclosure relates generally to mechanisms for reporting artificial intelligence or machine learning (AI/ML) related information. AI and ML functions are implemented more and more frequently in base stations for analyzing and providing predictions of network and device information. Sharing such AI/ML information between different base stations may be beneficial. Accordingly, the present disclosure relates to mechanisms for providing such AI/ML related information.

As described above, various reporting mechanisms are known to report various information (e.g., resource status), for example, as part of the current NR specifications. In various embodiments, the process for reporting AI/ML related information may generally follow known reporting mechanisms. However, AI/ML related information is different from conventional resource status measurements. Conventional measurements are typically directed to historical information, meaning that such information is always present under normal conditions. However, whether the AI/ML prediction information can be generated is based on the AI capabilities of the base station (e.g., the capabilities of the second base station 304 in the example described above). Regarding the procedure for AI/ML information, a base station (e.g., the second base station 304) may not be able to satisfy all requested measurements in the request.

For example, referring again to fig. 3, the first base station 302 can request the second base station 304 to provide a predicted resource status, a predicted number of active UEs, and a predicted RRC connection. However, upon request, the second base station 304 may only provide a predicted resource status and may not have the ability to predict other requested measurements. Thus, under existing reporting mechanisms, the entire AI/ML information initiation process will fail. Furthermore, while the second base station 304 may be able to perform the predicted resource status measurement, it will not provide the report because the entire reporting process will fail. Importantly, the first base station 302 requesting the measurements will not understand which specific information the second base station 304 cannot provide. Thus, at the next time, the process will still fail because all requested measurements cannot be started. From an AI/ML perspective, the AI/ML model that generates report information and decisions need not obtain all of the requested AI/ML information. However, a mechanism is needed that enables base stations to provide information that they can report to each other. Accordingly, partial reporting mechanisms are disclosed herein that are supported at least in terms of the process of requesting and reporting AI/ML information.

In some example implementations, a method performed by a first radio access network node (e.g., a first base station) is disclosed. The method may include the first radio access network node providing a reporting feature indication to a second radio access network node (e.g., a second base station) as part of a request message indicating one or more requested measurements to be performed by the second radio access network node. In some embodiments, the request message may further include a partial report indication Information Element (IE), wherein the partial report indication IE indicates whether partial reporting in response to the request message is allowed. The method may further comprise sending a request message to the second radio access network node. Similarly, a method performed by a second radio access network node is also disclosed, which may comprise the second radio access network node receiving a request message. The method may further include the second radio access network node determining whether the second radio access network node is capable of performing the requested one or more measurements.

In some example implementations, which may be combined with any of the other example implementations disclosed herein, the method further includes the second radio access network node sending a message request response to the first radio access network node, and the first radio access network node receiving the message request response. The message request response may indicate that the second radio access network node is capable of performing the one or more requested measurements and provide at least one measurement result back to the first radio access network node.

In some example implementations, which may be combined with any of the other example implementations disclosed herein, the method further includes the second radio access network node sending a message request failure response to the first radio access network node, and the first radio access network node receiving the message request failure response. The message request failure response may indicate that the second radio access network node is unable to perform the one or more requested measurements and provide at least one measurement result back to the first radio access network node. In some implementations, the message request failure response may include a cause value indicating that the partial report failed.

In some example implementations, which may be combined with any of the other example implementations disclosed herein, the method further includes the first radio access network node providing a timing information IE to the second radio access network node as part of the request message, the timing information IE indicating a time range of the requested information related to the request message including at least one of a start time, an end time, or a duration.

In some example implementations, which may be combined with any of the other example implementations disclosed herein, the method further includes the second radio access network node performing at least one of the one or more requested measurements. The method may further comprise the second radio access network node sending a request message information update/report response to the first radio access network node, and the first radio access network node receiving the request message information update/report response. The request message information update/report response may include at least one result of at least one of the one or more requested measurements.

In some example implementations, which may be independent of or combined with any other example implementations disclosed herein, the method further includes the second radio access network node determining which of the one or more requested measurements the second radio access network node is capable of performing. The method further comprises the second radio access network node sending at least one of a success reporting feature IE or an unsuccessful reporting feature IE to the first radio access network node as part of the message request response, the success reporting feature indicating which of the one or more requested measurements of the request message are indicated as being successful, the unsuccessful reporting feature indicating which of the one or more requested measurements of the request message are indicated as being unsuccessful. The method may further comprise the first radio access network node receiving such a message request response.

In some example implementations, which may be independent of or combined with any other example implementations disclosed herein, the request message may be an artificial intelligence/machine learning (AI/ML) information request message, the message request response may be an AI/ML information response message, the message request failure response may be an AI/ML information failure message, and the request message information update/report response may be an AI/ML information update/report message.

In some example implementations, which may be independent of or combined with any other example implementations disclosed herein, the request message may be a handover request message, the message request response may be a handover request acknowledge message, the message request failure response may be a handover preparation failure message, and the request message information update/REPORT response may be an AI/ML information update/REPORT (INFORMATION UPDATE/REPORT) message.

In some example implementations, which may be independent of or combined with any other example implementations disclosed herein, the first radio access network node may be a gNB centralized unit (gNB-CU) and the second radio access network node may be a gNB distributed unit (gNB-DU). Similarly, in other implementations, the first radio access network node may be a gNB distributed unit (gNB-DU) and the second radio access network node may be a gNB centralized unit (gNB-CU).

In some other implementations, an apparatus for wireless communication (e.g., a network device) is disclosed. The network device generally includes one or more processors and one or more memories, wherein the one or more processors are configured to read computer code from the one or more memories to implement any of the methods described above. The means for wireless communication may be a radio access network node.

In some other implementations, a computer program product is disclosed. The computer program product may include a non-transitory computer-readable medium having computer code stored thereon, which when executed by one or more processors causes the one or more processors to implement any of the methods described above.

Other aspects and alternatives to the above embodiments and implementations thereof are explained in more detail in the following drawings, description and claims.

Drawings

Fig. 1 illustrates a radio access network with exemplary wireless communications in accordance with various embodiments.

Fig. 2 illustrates various example processing components of the device shown in fig. 1.

Fig. 3 shows communication between a first base station and a second base station according to known mechanisms.

Fig. 4 illustrates communication between a first base station and a second base station in accordance with various embodiments.

Fig. 5 illustrates communication between a first base station and a second base station in accordance with various embodiments.

Fig. 6 illustrates communication between a first base station and a second base station in accordance with various embodiments.

Fig. 7 illustrates communication between a first base station and a second base station in accordance with various embodiments.

Detailed description of the preferred embodiments

Examples of techniques and implementations and/or embodiments described in this disclosure may be used to facilitate channel and interference measurements in a wireless access network. The term "exemplary" is used to mean "exemplary," and does not mean an ideal or preferred example, implementation, or embodiment unless otherwise specified. Section headings are used in this disclosure to facilitate an understanding of the disclosed implementations and are not intended to limit the disclosed technology to only the corresponding sections. The disclosed implementations may further be embodied in a variety of different forms and, thus, the scope of the present disclosure or claimed subject matter is not to be construed as limited to any of the embodiments set forth below. Various implementations may be embodied as methods, devices, components, systems, or non-transitory computer-readable media. Thus, embodiments of the present disclosure may take the form of, for example, hardware, software, firmware, or any combination thereof.

Novel mechanisms for reporting AI/ML related information are disclosed herein. As part of these reporting mechanisms, mechanisms are disclosed herein that enable partial reporting, which are supported at least in terms of the process of requesting and reporting AI/ML information. This enables base stations and UEs with different measurement and reporting capabilities to still provide such measurement results and reports according to their capabilities, thus still allowing information to be exchanged upon request.

Overview of wireless networks

The wireless communication network may include a radio access network for providing network access to wireless terminal devices and a core network for routing data between access networks or between the wireless network and other types of data networks. In a radio access network, radio resources are provided for allocation and for transmission of data and control information. Fig. 1 shows an exemplary wireless access network 100 that includes a first Wireless Access Network Node (WANN) or a first base station 102 (referred to herein as a first wireless base station, a first wireless access node, a first wireless access network node, a first WANN, or a first NG-RAN node). The radio access network 100 may also include a second radio access network node (WANN) or a second radio base station 108 (referred to herein as a second radio base station, a second radio access node, a second radio access network node, a second WANN, or a second NG-RAN node). In various embodiments, the first base station 102 and the second base station 108 may communicate with each other, for example, using a request message 112 and a response message 114. The present disclosure provides improvements to these messages.

The radio access network 100 may also include wireless terminal devices or User Equipment (UE) 104 (referred to herein as user equipment, UE, terminal devices, or wireless terminal devices). The first base station 102, the second base station 108, and/or the UE 104 communicate with each other via over-the-air (OTA) radio communication resources 106. The radio access network 100 may be implemented as, for example, a 2G, 3G, 4G/LTE or 5G cellular radio access network. Accordingly, the first base station 102 and/or the second base station 108 may be implemented as a 2G base station, a 3G node B, an LTE eNB, or a 5G New Radio (NR) gNB. The UE 104 may be implemented as a mobile or fixed communication device equipped with a mobile identity module for accessing the base station 102. User devices 104 may include, but are not limited to, mobile phones, notebook computers, tablet computers, personal digital assistants, wearable devices, distributed remote sensor devices, and desktop computers. Alternatively, the wireless access network 100 may be implemented as other types of wireless access networks, such as Wi-Fi, bluetooth, zigBee, and WiMax networks.

Fig. 2 also illustrates example processing components of the first base station 102 and the UE 104 of fig. 1. In various embodiments, the processing components of the first base station 102 are the same as the processing components of the second base station 108. For example, the UE 104 may include transceiver circuitry 206 coupled to one or more antennas 208 to enable wireless communication with WANN (or other UEs). The transceiver circuitry 206 may also be coupled to a processor 210, and the processor 210 may also be coupled to a memory 212 or other storage device. Memory 212 may be transitory or non-transitory and may store computer instructions or code therein that, when read and executed by processor 210, cause processor 210 to implement the various functions, methods and processes described herein. Likewise, the first base station 102 and the second base station 108 may each include transceiver circuitry 214 coupled to one or more antennas 216, and the transceiver circuitry 214 may include various forms of antenna towers 218 to enable wireless communication with the UE 104 and/or with other base stations (e.g., such that the first base station 102 may communicate with the second base station 104). The transceiver circuitry 214 may be coupled to one or more processors 220, and the transceiver circuitry 214 may also be coupled to a memory 222 or other storage device. The memory 222 may be transitory or non-transitory and may store instructions or code therein that, when read and executed by the one or more processors 220, cause the one or more processors 220 to implement the various functions, methods, and processes of the first base station 102 or the second base station 108 described herein.

Description of novel mechanisms for reporting

As described above, according to various embodiments, new mechanisms for reporting AI/ML related information are disclosed. As part of these reporting mechanisms, mechanisms to implement partial reporting are disclosed herein. This enables base stations with different measurement and reporting capabilities to still provide measurement results and reports according to their capabilities, allowing for exchange of information even when all requested or desired reports cannot be provided.

Fig. 4 illustrates communication between a first base station 102 and a second base station 108 in accordance with various embodiments. In various embodiments, methods performed by the first base station 102 (e.g., WANN) and/or the second base station 108 for reporting AI/ML-related information are disclosed. In one approach, the new reporting mechanism follows a reporting mechanism similar to the resource status initiation process, but with significant differences and improvements.

In various embodiments, the first base station 102 initiates a request message (e.g., an AI/ML information request message) 406 to the second base station 108. As part of the request message 406, the first base station 102 may provide a reporting feature indication indicating one or more requested measurements to be performed by the second base station 108 (e.g., the type of object the second wireless base station 108 should perform the measurements). In addition, the request message 406 may also include a partial report indication Information Element (IE) indicating whether partial reporting in response to the request message is allowed. The first base station 102 may then send the request message 406 to the second base station 108, which in turn receives the request message 406.

In response to receiving the request message 406, the second base station 108 may determine whether it is capable of performing one or more requested measurements. If the partial report indication IE is set to "true" and the second base station 108 determines, based on its capabilities, that it is capable of performing all or some of the one or more requested measurements and provides all or part of the requested information, the second base station 108 may respond to the first base station 102 with a message request response (e.g., AI/ML information response) message 408, the message 408 indicating that it was successfully configured, e.g., that it is capable of performing the one or more requested measurements, and provide at least one measurement result to the first radio access network node 102.

If the partial report indication IE in the request message 406 is set to "false" or not contained in the request message 406 and the second base station 108 determines based on its capabilities that it is not capable of performing one or more requested measurements and can only provide a portion of the requested information back to the first radio access network node, the second base station 108 can respond with a message request failure response (e.g., AI/ML information failure) message 410. The second base station 108 may send a message request failure response 410 to the first base station 102, the response being received by the first base station 102, wherein the message request failure response 410 indicates that the second base station 108 is not capable of performing the one or more requested measurements and provides at least one measurement result back to the first radio access network node.

In various embodiments, the second base station 108 will send a message request response (e.g., AI/ML information response) message 408 indicating that it was successfully configured only if it is able to provide all the requested information. Otherwise, the second base station 108 will send a message request failure response (e.g., AI/ML information failure) message 410.

In various embodiments, the second base station 108 may include an appropriate cause value in the message request failure response (e.g., AI/ML information failure) message 410 indicating that part of the report failed. In various examples, the cause value may be "partial report failure".

In some embodiments, the first base station 102 may provide a timing information IE and the second base station 108 may receive the timing information IE as part of a request message (e.g., AI/ML information request message) 406. The timing information IE may indicate a time range of the requested information related to the request message, including at least one of a start time, an end time, or a duration.

If successfully configured, the second base station 108 may perform at least one of the one or more requested measurements (as indicated at 412), which may include measuring the requested resource status AI/ML related information. The second base station 108 may then send a request message information update/report response (e.g., AI/ML information update/report) message 414 received by the first base station 102 to the first base station 102. Thus, the request message information update/report response message 414 may be either or both of an AI/ML information update message or an AI/ML information report message. The request message information update/report response 414 may include at least one result of at least one of the one or more requested measurements.

Thus, the base station can provide a partial report. This new mechanism enables base stations with different measurement and reporting capabilities to still provide measurement results and reports according to their capabilities, even if fewer results are provided than originally requested, thus still allowing information to be exchanged upon request.

Fig. 5 illustrates communication between a first base station 102 and a second base station 108 according to an alternative embodiment. In various embodiments, unlike fig. 4, the request message (e.g., AI/ML information request message) 506 may omit or exclude a partial report indication IE. The request message 506 may include a reporting feature indication indicating one or more requested measurements to be performed by the second base station. Thus, in this approach, to still allow partial reporting, the second base station 108 will indicate in a message request response (e.g., AI/ML information response) message 508 which of the requested measurements or reports it can provide. More specifically, the second base station 108 may determine which of the one or more requested measurements the second base station 108 is capable of performing. The second base station 108 may then send a success reporting feature IE to the first base station 102 as part of the message request response 506 indicating which of the one or more requested measurements of the request message were successfully indicated. Alternatively or additionally, the second base station 108 may send an unsuccessful report feature IE to the first base station 102 as part of the message request response 506 indicating which of the one or more requested measurements of the request message were not successfully indicated. This allows for partial reporting of the advantages of the message request response 506 sent by the second base station 108.

The remaining steps and communications are the same as or similar to those shown in fig. 4. That is, the second base station 108 may respond to the first base station 102 with a message request failure response (e.g., AI/ML information failure) message 410, which message 410 is received by the first base station 102, which message request failure response 410 may indicate that the second base station 106 cannot perform one or more requested measurements and provide at least one measurement result back to the first base station 102. The second base station 108 may include an appropriate cause value in the message request failure response (e.g., AI/ML information failure) message 410 indicating that part of the report failed. The first base station 102 may provide a timing information IE and the second base station 108 may receive the timing information IE as part of a request message (e.g., AI/ML information request message) 506, which may indicate a time range of the requested information related to the request message, including at least one of a start time, an end time, or a duration. The second base station 108 may perform at least one of the one or more requested measurements (as shown at 412). The second base station 108 may then send a request message information update/report response (e.g., AI/ML information update/report) message 414 to the first base station 102, the message 414 received by the first base station 102 and may include at least one result of at least one requested measurement of the one or more requested measurements.

Fig. 6 illustrates communication between a first base station 102 and a second base station 108 according to another alternative embodiment. This alternative embodiment includes aspects of the embodiments of fig. 4 and 5. Although the embodiment of fig. 5 is discussed above in the context of a request message (e.g., AI/ML information request message) 506 that omits or does not include a partial report indication IE, the embodiment of fig. 6 combines the message request response (e.g., AI/ML information response) message 508 of fig. 5 with the method disclosed in fig. 4. That is, in various embodiments, the methods and mechanisms discussed above with respect to fig. 4 may be further altered to include the message request response (e.g., AI/ML information response) message 508 of fig. 5, including a successful reporting feature IE and/or an unsuccessful reporting feature IE. In other words, in various embodiments, the message request response (e.g., AI/ML information response) message 508 of fig. 5 may be provided in response to the request message (e.g., AI/ML information request message) 406 as described in fig. 4, including a successful reporting feature IE and/or an unsuccessful reporting feature IE, the request message 406 including a partial reporting directive IE. The remaining signals and communications are as described above.

Fig. 7 illustrates communication between a first base station 102 and a second base station 108 according to another alternative embodiment. In this alternative embodiment, reporting is done in the context of a handover request rather than an AI/ML information request. The same teachings discussed above with respect to the embodiments shown in fig. 4-6, but only in the context of a handoff request. That is, while the various disclosed method steps and information elements included in a message are the same as described above, the messages that send them are different. Specifically, in this embodiment, the request message may be a handover request message 706. The message request response may be a handover request acknowledge message 708. The message request failure response may be a handover preparation failure message 710. Similarly, the request message information update/report response may be an AI/ML information update/report message 714.

In the various embodiments described above, in some approaches, the first base station 102 may be a gNB centralized unit (gNB-CU) and the second base station 108 may be a gNB distributed unit (gNB-DU). Alternatively, the first base station 102 may be a gNB distributed unit (gNB-DU) and the second base station 108 may be a gNB centralized unit (gNB-CU).

The above description and drawings provide specific example embodiments and implementations. The described subject matter may, however, be embodied in various different forms and, thus, the contemplated or claimed subject matter is not to be construed as limited to any of the example embodiments set forth herein. Is intended to provide a reasonably broad scope for the claimed or covered subject matter. In addition, for example, the subject matter may be embodied as methods, devices, components, systems, or non-transitory computer-readable media for storing computer code. Thus, for example, embodiments may take the form of hardware, software, firmware, storage medium, or any combination thereof. For example, the above-described method embodiments may be implemented by a component, apparatus, or system comprising a memory and a processor by executing computer code stored in the memory.

Throughout the specification and claims, terms may have the meanings that are suggested or implied by the context to be beyond the explicitly specified meaning. Likewise, the phrase "in one embodiment/implementation/example/method" as used herein does not necessarily refer to the same embodiment, nor does the phrase "in another embodiment/implementation/example/method" as used herein necessarily refer to a different embodiment. It is intended that, for example, the claimed subject matter includes combinations of all or part of the example embodiments.

Generally, terms are to be understood, at least in part, from usage in the context. For example, terms used herein, such as "and," "or," or "and/or," may include various meanings that may depend, at least in part, on the context in which the terms are used. Typically, or if used to associate a list, such as A, B or C, means A, B and C, inclusive herein, and A, B or C, exclusive herein. Furthermore, the term "one or more" as used herein, depending at least in part on the context, may be used to describe any feature, structure, or characteristic in the singular sense, and may also be used to describe combinations of features, structures, and characteristics in the plural sense. Also, terms such as "a," "an," or "the" may be understood as conveying either singular or plural, depending at least in part on the context. Furthermore, the term "based on" may be understood as not necessarily intended to convey a set of exclusionary factors, but may allow for the presence of other factors that are not necessarily explicitly described, depending at least in part on the context.

Reference throughout this specification to features, advantages, or similar language does not imply that all of the features and advantages that may be realized with the present solution should be or are in any single implementation thereof. Rather, language referring to the features and advantages is understood to mean that a specific feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of the present solution. Thus, discussion of the features and advantages, and similar language, throughout this specification may, but do not necessarily, refer to the same embodiment.

Furthermore, the described features, advantages, and characteristics of the solution may be combined in any suitable manner in one or more embodiments. One of ordinary skill in the relevant art will recognize, in view of the description herein, that the present solution may be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments of the present solution.

Claims

1. A method performed by a first radio access network node, the method comprising:

The following is provided as part of a request message sent to the second radio access network node:

A reporting feature indication indicating one or more requested measurements to be performed by the second radio access network node, and

A partial report indication information element, IE, wherein the partial report indication IE indicates whether to allow partial reporting in response to the request message, and

The request message is sent to the second radio access network node.

2. The method of claim 1, further comprising:

A message request response is received from the second radio access network node, wherein the message request response indicates that the second radio access network node is capable of performing the one or more requested measurements and at least one measurement result is provided back to the first radio access network node.

3. The method of claim 1, further comprising:

A message request failure response is received from the second radio access network node, wherein the message request failure response indicates that the second radio access network node is unable to perform the one or more requested measurements and provides at least one measurement result back to the first radio access network node.

4. A method according to claim 3, wherein the message request failure response includes a cause value indicating that part of the report failed.

5. The method of claim 1, further comprising:

providing as part of the request message sent to the second radio access network node:

A timing information IE, wherein the timing information IE indicates a time range of the requested information related to the request message, the time range including at least one of a start time, an end time, or a duration.

6. The method of claim 1, further comprising:

A request message information update/report response is received from the second radio access network node, wherein the request message information update/report response comprises at least one result of at least one of the one or more requested measurements performed by the second radio access network node in response to the request message.

7. The method of claim 1, further comprising:

receiving from the second radio access network node as part of the message request response at least one of:

a success reporting feature IE indicating which of the one or more requested measurements of the request message were successfully indicated, or

An unsuccessful reporting feature IE indicating which of the one or more requested measurements of the request message are indicated as unsuccessful.

8. A method performed by a first radio access network node, the method comprising:

A reporting feature indication for indicating one or more requested measurements to be performed by the second radio access network node;

transmitting the request message to the second radio access network node, and

Receiving a message request response from the second radio access network node, the message request response comprising at least one of:

9. The method of claim 8, further comprising:

10. The method of claim 9, wherein the message request failure response includes a cause value indicating that a portion reported failed.

11. The method of claim 8, further comprising:

12. The method of claim 8, further comprising:

13. A method performed by a second radio access network node, the method comprising:

receiving a request message from a first radio access network node, the request message comprising:

Determining whether the second radio access network node is capable of performing the one or more requested measurements.

14. The method of claim 13, further comprising:

a message request response is sent to the first radio access network node, wherein the message request response indicates that the second radio access network node is capable of performing the one or more requested measurements and at least one measurement result is provided back to the first radio access network node.

15. The method of claim 13, further comprising:

a message request failure response is sent to the first radio access network node, wherein the message request failure response indicates that the second radio access network node is unable to perform the one or more requested measurements and provides at least one measurement result back to the first radio access network node.

16. The method of claim 15, further comprising:

A cause value indicating a partial report failure is included as part of the message request failure response.

17. The method of claim 13, further comprising:

Receiving as part of the request message from the first radio access network node:

18. The method of claim 13, further comprising:

performing at least one of the one or more requested measurements, and

A request message information update/report response is sent to the first radio access network node, wherein the request message information update/report response comprises at least one result of the at least one requested measurement of the one or more requested measurements.

19. The method of claim 13, further comprising:

determining which of said one or more requested measurements can be performed by said second radio access network node, and

Transmitting to the first radio access network node as part of the message request response at least one of:

20. A method performed by a second radio access network node, the method comprising:

Transmitting a message request response to the first radio access network node, the message request response comprising at least one of:

21. The method of claim 20, further comprising:

22. The method of claim 21, further comprising:

23. The method of claim 20, further comprising:

24. The method of claim 20, further comprising:

performing at least one of the one or more requested measurements, and

25. The method of any of claims 1-24, wherein the request message is an artificial intelligence/machine learning AI/ML information request message.

26. The method of any of claims 2, 7, 8, 14, 19, or 20-25, wherein the message request response is an AI/ML information response message.

27. The method of any of claims 3,4, 9, 10, 15, 16, 21, 22, or 25, wherein the message request failure response is an AI/ML information failure message.

28. The method of any of claims 6, 12, 18, 24 or 25, wherein the request message information update/report response is an AI/ML information update/report message.

29. The method of any of claims 1 to 24, wherein the request message is a handover request message.

30. The method of any of claims 2, 7, 8, 14, 19, 20-24, or 29, wherein the message request response is a handover request confirm message.

31. The method of any of claims 3, 4, 9, 10, 15, 16, 21, 22, or 29, wherein the message request failure response is a handover preparation failure message.

32. The method of any of claims 6, 12, 18, 24 or 29, wherein the request message information update/report response is an AI/ML information update/report message.

33. The method of any of claims 1-32, wherein the first radio access network node is a gNB centralized unit, gNB-CU, and wherein the second radio access network node is a gNB distributed unit, gNB-DU.

34. The method of any of claims 1-32, wherein the first radio access network node is a gNB distributed unit, gNB-DU, and wherein the second radio access network node is a gNB centralized unit, gNB-CU.

35. An apparatus for wireless communication, comprising a processor configured to perform the method of any one of claims 1 to 34.

36. A non-transitory computer readable medium having code stored thereon, which when executed by a processor causes the processor to implement the method of any of claims 1 to 34.