The present disclosure relates to reconfiguration of communication circuit of O-RU in O-RAN.
For the purpose of the so-called open radio access network (RAN) in a mobile communication system, “Open RAN”, “O-RAN”, “vRAN” and the like are being considered. In the specification, “O-RAN” is used as a comprehensive term for such various “open radio access networks”. Therefore, the interpretation of “O-RAN” in the specification is not limited to the standard and/or the specification of the same name “O-RAN” specified by the O-RAN Alliance.
A radio unit (RU) in the O-RAN is called an O-RU and provides a communication cell to a communication device (UE: User Equipment). The O-RUs are controlled by RAN nodes, which are composed of the O-CUs, which are central units (CUs), and/or the O-DUs, which are distributed units (DUs). Furthermore, RAN nodes are controlled by the Near-RT RIC (Near-Real Time RAN Intelligent Controller) and/or the Non-RT RIC (Non-Real Time RAN Intelligent Controller) and the like, which are higher-level controllers. The O-RAN also provides a virtual infrastructure, also called O-Cloud, that virtually manages a set of a plurality of RAN nodes.
In the conventional O-RAN, a mechanism to flexibly change the communication function of the O-RUs was not well defined.
The present disclosure was made in view of the circumstances, and the purpose is to provide a radio access network control apparatus and the like that can flexibly change the communication function of the O-RU.
In order to solve the above issue, a radio access network control apparatus that controls O-RAN including O-RU as radio unit in a certain aspect of the present disclosure includes at least one processor that performs: by a communication function reconfiguration unit, reconfiguring at least one of hardware and software of at least one of transmitter circuit and receiver circuit in the O-RU.
According to the aspect, the communication function of the O-RU can be flexibly changed by reconfiguring at least one of hardware and software of at least one of transmitter circuit and receiver circuit in the O-RU.
Another aspect of the present disclosure is a radio access network control method that controls O-RAN including O-RU as radio unit. The method includes: reconfiguring at least one of hardware and software of at least one of transmitter circuit and receiver circuit in the O-RU.
Further another aspect of the present disclosure is a computer-readable medium. The computer-readable medium stores a radio access network control program that controls O-RAN including O-RU as radio unit, causing a computer to perform: reconfiguring at least one of hardware and software of at least one of transmitter circuit and receiver circuit in the O-RU.
In addition, any combination of the above components, and any conversion of the expression of the present disclosure among methods, devices, systems, recording media, computer programs and the like are also encompassed within the disclosure.
According to the present disclosure, communication function of O-RU can be flexibly changed.
In the following, the present embodiment is described in accordance with the “O-RAN” which is the standard and/or the specification developed by the O-RAN Alliance. Therefore, the known terms defined in “O-RAN” will be used in the present embodiment just for convenience, but the technologies according to the disclosure can be applied to other existing radio access networks such as “Open RAN” and “vRAN” and/or to similar radio access networks that may be developed in the future.
The illustrated RAN node has an O-CU, which is an O-RAN compliant central unit (CU), and/or O-DU, which is an O-RAN compliant distributed unit (DU). Both of the O-CU and the O-DU are responsible for baseband processing in the O-RAN, where the O-CU is provided on the side of the core network (not shown in the figure), and the O-DU is provided on the side of the O-RU, which is an O-RAN compliant radio unit (RU). The O-CU may be divided into the O-CU-CP, which constitutes the control plane (CP), and the O-CU-UP, which constitutes the user plane (UP). The O-CU and the O-DU may be integrally configured as a single baseband processing unit. The O-eNB as a base station compliant with the O-RAN and the 4th generation mobile communication system (4G), may be provided as a RAN node. One or more O-RUs are connected to each RAN node (O-CU/O-DU) and are controlled by the Near-RT RIC via each of the RAN nodes. A communication device (UE: User Equipment) in the communication cell provided by each O-RU can be connected to each of the O-RUs, and can perform mobile communication with the core network (not shown) via each RAN node (O-CU/O-DU).
Each RAN node (O-CU/O-DU) and the Near-RT RIC provide operational data and the like of each RAN node, each O-RU and each UE through the O1 interface to the SMO for so-called FCAPS (Fault, Configuration, Accounting, Performance, Security). The SMO updates as necessary the operational policy for each RAN node issued by the Non-RT RIC to the Near-RT RIC through the A1 interface, based on the operational data acquired through the O1 interface. The O-RUs may be connected to the SMO for the FCAPS by the O1 interface and/or other interfaces (for example Open Fronthaul M-Plane).
The O-Cloud as a virtual infrastructure that virtually manages a set of the plurality of RAN nodes (O-CUs/O-DUs) is connected to the SMO by an O2 interface. The SMO generates a resource allocation policy concerning the resource allocation and/or a workload management policy concerning the workload management of the plurality of RAN nodes, based on the operational states of the plurality of RAN nodes (O-CUs/O-DUs) acquired from the O-Cloud through the O2 interface, and issues them to the O-Cloud through the O2 interface.
The FOCOM manages resources in the O-Cloud, while receiving services from the IMS of the O-Cloud through the O2 interface (O2ims). The NFO realizes the orchestrated operation of a set of network functions (NFs) by a plurality of NF Deployments in the O-Cloud, while receiving services from the DMS of the O-Cloud through the O2 interface (O2dms). The NFO may utilize the OAM Function to access the deployed NFs through the O1 interface. The OAM Function is responsible for the FCAPS management of O-RAN managed entities such as the RAN nodes. The OAM Function in the present embodiment can be a functional block where callbacks are provided for receiving data concerning failures and/or operational states of the plurality of RAN nodes that are virtually managed by the O-Cloud, by monitoring processes or procedures over the O2ims and/or the O2dms. The IMS is responsible for managing the O-Cloud resources (hardware) and/or the software used for managing them, and provides services primarily to the FOCOM of the SMO. DMS is responsible for the management of the plurality of NF Deployments in the O-Cloud, specifically the initiation, monitoring, termination and the like, and provides services primarily to the NFO of the SMO.
In the SMO framework excluding the Non-RT RIC, the O1 Termination, the O1 Related Functions, the O2 Termination, the O2 Related Functions, and the Other SMO Framework Functions are provided. The O1 Termination is the termination of the O1 interface in the SMO framework. As also shown in
In the Non-RT framework, which is the area of the Non-RT RIC excluding the rApp, the A1 Termination, the A1 Related Functions, the A2 Termination, the A2 Related Functions, the R1 Termination, the R1 Service Exposure Functions, the External Terminations, the Data Management & Exposure Functions, the AI (Artificial Intelligence)/ML (Machine Learning) Workflow Functions, and the Other Non-RT RIC Framework Functions are provided.
The A1 Termination is the termination of the A1 interface in the Non-RT framework. As also shown in
The R1 Termination is the termination of the R1 interface in the Non-RT framework. The R1 Termination is connected to the rApp running on the Non-RT RIC via the R1 interface. In other words, the R1 interface constitutes the API (Application Programming Interface) for the rApp. The R1 Service Exposure Functions accompanying the R1 Termination provide the function of disclosing data related to services such as the R1 interface and the rApp to the main bus MB and the like and/or provide the function of disclosing data from the main bus MB and the like to the R1 Termination and the like for services such as the R1 interface and the rApp. The External Terminations are terminations of various external interfaces (not shown) in the Non-RT framework.
The Data Management & Exposure Functions manage various data on the main bus MB, and provide the function of disclosing them in a manner in accordance with the access right of each functional block. The AI/ML Workflow Functions provide the function of managing workflows executed using the artificial intelligence (AI) capability and/or the machine learning (ML) capability implemented in the Non-RT RIC and/or the Near-RT RIC. The Other Non-RT RIC Framework Functions provide other functions except for the above various Non-RT framework functions. Various functions of the Non-RT framework such as the A1 Related Functions, the A2 Related Functions, the R1 Termination, the R1 Service Exposure Functions, the External Terminations, the Data Management & Exposure Functions, the AI/ML Workflow Functions, and the Other Non-RT RIC Framework Functions, are connected to the main bus MB extending also outside the Non-RT RIC. Each of the functional blocks can exchange data with other functional blocks inside and outside the Non-RT RIC through the main bus MB.
The energy saving information notification unit 11 causes the O-RU to notify energy saving information concerning one or more energy saving modes that the O-RU can support. Specifically, the energy saving information notification unit 11 notifies the energy saving information from the O-RU to at least one of the SMO, the Near-RT RIC, the O-CU, and the O-DU, through the O1 interface and the Open Fronthaul M-Plane, the Open Fronthaul CUS-Plane and the like. The energy saving information notification unit 11 may be provided in the O-RU and actively notify the energy saving information to the SMO and the like outside the O-RU, or it may be provided outside the O-RU and cause the O-RU to passively the notify energy saving information to SMO and the like outside the O-RU.
The first transition time (Deactivation Duration) is the time required to transition each O-RU from normal mode or other energy saving mode to each energy saving mode. The second transition time (Activation Duration) is the time required to transition each O-RU from each energy saving mode to normal mode or other energy saving mode. minimum duration (Minimum Sleep Duration) is the minimum time during which each O-RU is maintained in each energy saving mode, for example, the minimum duration of the communication function of each O-RU reconfigured by the communication function reconfiguration unit 13 described below in accordance with each energy saving mode. For example, an O-RU switched to the first energy saving mode SM1 by the energy saving mode switching unit 12 transitions from the normal mode and the like to the first energy saving mode SM1 during the first transition time of “35.5 μs”. After transitioning to the energy saving mode SM1 and remaining in the first energy saving mode SM1 for the minimum duration of at least “71 μs”, the O-RU transitions or returns from the first energy saving mode SM1 to the normal mode and the like during the second transition time of “35.5 μs”.
In the second energy saving mode SM2, the first transition time and the second transition time are “0.5 ms” and the minimum duration is “1 ms”. In the third energy saving mode SM3, the first transition time and the second transition time are “5 ms” and the minimum duration is “10 ms”. In the fourth energy saving mode SM4, the first transition time and the second transition time are “0.5 s” and the minimum duration is “1 s”. In the fifth energy saving mode SM5, the first transition time and the second transition time are any time longer than “0.5 s” and the minimum duration is any time longer than “1 s”.
As described above, the first transition time and the second transition time in each energy saving mode are preferably equal to each other and the sum of them is preferably equal to the minimum duration. And, the minimum duration in each energy saving mode is preferably an integer multiple of a duration of at least one of the frame, subframe, slot, and symbol that the O-RU can communicate. Especially in the illustrated example, the minimum duration in some energy saving modes is the same as the duration of at least one of the frame, subframe, slot, and symbol. Specifically, the minimum duration of “10 ms” in the third energy saving mode SM3 is the same as the duration of a frame in 5G and the like. Likewise, the minimum duration of “1 ms” in the second energy saving mode SM2 is the same as the duration of a subframe in 5G and the like. Furthermore, the minimum duration of “71 μs” in the first energy saving mode SM1 is the same as the duration of a symbol (where one subframe is composed of one slot including 14 OFDM symbols) in 5G and the like.
It should be noted that, in 5G, depending on the subcarrier spacing set in the network, there are 1 slot (where the subcarrier spacing is 15 kHz), 2 slots (where the subcarrier spacing is 30 kHz), 4 slots (where the subcarrier spacing is 60 kHz), 8 slots (where the subcarrier spacing is 120 kHz), and 16 slots (where the subcarrier spacing is 240 kHz) included in one subframe. Therefore, depending on the subcarrier spacing, the slot durations would be “1 ms” (15 kHz subcarrier spacing), “0.5 ms” (30 kHz subcarrier spacing), “0.25 ms” (60 kHz subcarrier spacing), “0.125 ms” (120 kHz subcarrier spacing), and “0.0625 ms” (240 kHz subcarrier spacing). The slot durations or their integer multiples may be set as the minimum durations in the energy saving modes.
Besides, each slot includes 14 OFDM symbols, regardless of the subcarrier spacing. Therefore, depending on the subcarrier spacing, the symbol durations would be “71 μs” (15 kHz subcarrier spacing), “36 μs” (30 kHz subcarrier spacing), “18 μs” (60 kHz subcarrier spacing), “9 μs” (120 kHz subcarrier spacing), and “4 μs” (240 kHz subcarrier spacing). The symbol durations or their integer multiples may be set as the minimum durations in the energy saving modes.
Energy saving options (Power Saving Options) or reconfiguration options (Reconfiguration Options) are options of energy saving or reconfiguration of each O-RU in each energy saving mode. In the example shown in the figure, for the first energy saving mode SM1, four options are exemplarily shown: “Entirely off”, “Partly off”, “Hardware reconfiguration” (HW reconfiguration), and “Software reconfiguration” (SW reconfiguration). Although not shown in the figure, similar options can be set for other energy saving modes SM2-SM5.
The energy saving option of “Entirely off” reduces the energy consumption of the O-RU by cutting off power to all components and/or all communication functions of the O-RU for energy saving. The energy saving option of “Partly off” reduces the energy consumption of the O-RU by cutting off power to a portion of components and/or a portion of communication functions of the O-RU for energy saving. Thus, the presence or absence of the “Entirely off” and “Partly off” energy saving options indicates whether or not the communication functions of the O-RU can be deactivated during the energy saving mode. The energy saving option of “Hardware reconfiguration” (HW reconfiguration) reduces the energy consumption of the O-RU by reconfiguring the hardware of the O-RU for energy saving. For example, if an O-RU is equipped with an integrated circuit that includes reconfigurable hardware such as a field-programmable gate array (FPGA) or a reconfigurable processor, it can be switched to a hardware configuration with lower processing performance, but less energy consumption than the normal mode and the like, in order to reduce energy consumption of the O-RU. The energy saving option of “Software reconfiguration” (SW reconfiguration) reduces the energy consumption of the O-RU by reconfiguring the software executed by the O-RU for energy saving. For example, the energy consumption of the O-RU can be reduced by rewriting the software to one that can execute the similar processes as in the normal mode and the like, but with less energy consumption while reducing the processing speed and the like.
As described above, if multiple energy saving options are included in one energy saving mode, the aforementioned first transition time, second transition time, minimum duration time, and energy consumption described below may be set for each energy saving option. Alternatively, an energy saving mode may be provided for each energy saving option.
Energy consumption (Power consumption) is the amount of energy consumed by the O-RU during each energy saving mode. In the example shown in the figure, for the first energy saving mode SM1, “Energy consumption of the entire O-RU” (Total: XXX Watts), “Energy consumption of Component A” (Component A: xxx Watts), “Energy consumption of Component B” (Component B: yyy Watts), and “Energy consumption of Component C” (Component C: zzz Watts) are exemplarily shown. The “Energy consumption of the entire O-RU” is equal to the sum of the “Energy consumption of Component A”, “Energy consumption of Component B”, and “Energy consumption of Component C”. Although not shown in the figure, similar energy consumptions are input for other energy saving modes SM2-SM5.
The energy consumptions of the entire O-RU for energy saving or each component and/or each communication function of the O-RU are, for example, statistical data based on simulations or past measurements during actual operations. It should be noted that, as described below, if an O-RU is switched to a certain energy saving mode by the energy saving mode switching unit 12 and/or the communication function reconfiguration unit 13, the energy consumptions of the entire O-RU, each component, and each communication function, may be measured in real-time by the O-RU or the radio access network control apparatus 1. The real-time measurement data of energy consumption are shared with the radio access network control apparatus 1 via the energy saving information notification unit 11 and the like, and are compared with the statistical data of energy consumption during the corresponding energy saving mode in
The various O-RU energy saving information as described above is typically notified to the radio access network control apparatus 1 such as the SMO through the O1 interface, the Open Fronthaul M-Plane, the Open Fronthaul CUS-Plane and the like as described above. However, the energy saving information of the O-RU may be notified to the radio access network control apparatus 1 through other interfaces. For example, the RAN node (O-CU/O-DU) controlling the O-RU may function as the energy saving information notification unit 11 and notify the SMO of the energy saving information of the O-RU to be controlled through the O1 interface, or notify the Near-RT RIC through the E2 interface. Furthermore, the Near-RT RIC may function as the energy saving information notification unit 11 and notify the SMO through the O1 interface of the energy saving information of the O-RU received through the E2 interface, or notify the Non-RT RIC through the A1 interface. Besides, the O-Cloud, which virtually manages RAN node (O-CU/O-DU), may function as the energy saving information notification unit 11 and notify the SMO through the O2 interface of the energy saving information of the O-RU acquired by the RAN node to be controlled.
If the O-Cloud functions as the energy saving information notification unit 11, it is preferable to notify the SMO of the energy saving information of the O-RU through the O2dms interface in
According to the first O2dms query “Query O2dms_Deployment Inventory related Services”, information concerning various NF Deployment inventory details, which may include O-RU energy saving information, may be acquired by the NFO of the SMO from the DMS of the O-Cloud through the O2 interface (O2dms).
According to the second O2dms query “Query O2dms_Deployment Monitoring related Services”, information concerning telemetry report of each NF Deployment, which may include O-RU energy saving information, may be acquired by the NFO of the SMO from the DMS of the O-Cloud through the O2 interface (O2dms).
According to the third O2dms query “Query O2dms_InfrastructureLifecycleManagement Services”, information concerning procedural support for automation of NF Deployment lifecycle events, which may include O-RU energy saving information, may be acquired by the NFO of the SMO from the DMS of the O-Cloud through the O2 interface (O2dms).
The energy saving mode switching unit 12 switches the O-RU to, an energy saving mode that the O-RU can support, that was notified by the energy saving information notification unit 11, and/or, an energy saving mode that the O-RU can support, that the SMO, the Non-RT RIC, the Near-RT RIC, the O-CU, the O-DU, the O-Cloud and the like where the energy saving mode switching unit 12 may be provided, are aware of in advance.
The communication function reconfiguration unit 13 provided in the SMO, the Non-RT RIC, the Near-RT RIC, the O-CU, the O-DU, the O-Cloud and the like reconfigures the communication function of the O-RU. As described above with respect to
The energy saving mode switching unit 12 and/or the communication function reconfiguration unit 13 may perform the switching of the energy saving mode of the O-RU and/or the reconfiguration of the communication function of the O-RU in accordance with various criteria for optimizing the O-RU operation or policies based on artificial intelligence and/or machine learning. In particular, to optimize or minimize energy consumption in the O-RU, the energy saving mode switching unit 12 selects one energy saving mode with the lowest energy consumption (“Power Consumption” in
Such policies and/or necessary information for reconfiguration generated based on artificial intelligence and/or machine learning may be reflected or provided, by the host in the Non-RT RIC (for example, the artificial intelligence/machine learning workflow function described above), directly through the Open Fronthaul or the O1 interface to the O-RU, or indirectly via the A1 interface, the Near-RT RIC, or the RAN node to the O-RU. Below, the first example for the former case and the second example for the latter case will be described respectively.
In the first example, the Non-RT RIC functions as follows.
In the first example, the RAN node functions as follows.
In the first example, the O-RU functions as follows.
In the second example, the Non-RT RIC functions as follows.
In the second example, the Near-RT RIC functions as follows.
In the second example, the RAN node functions as follows.
In the second example, the O-RU functions as follows.
The control of the O-RU by the energy saving mode switching unit 12 and/or the communication function reconfiguration unit 13 as described above is typically performed by the Non-RT RIC, the Near-RT RIC, the RAN node (O-CU/O-DU) and the like connected by the A1 interface and the E2 interface. However, the control of the O-RU by the energy saving mode switching unit 12 and/or the communication function reconfiguration unit 13 may be performed by other components of the O-RAN through other interfaces. For example, the SMO, the Non-RT RIC, the Near-RT RIC, the RAN node (O-CU/O-DU) and the like, where the energy saving mode switching unit 12 and/or the communication function reconfiguration unit 13 are provided, may directly control the O-RU through the O1 interface, the Open Fronthaul M-Plane, the Open Fronthaul CUS-Plane and the like. Furthermore, the O-Cloud, which virtually manages the RAN node (O-CU/O-DU), may function as the energy saving mode switching unit 12 and/or communication function reconfiguration unit 13 to cause the RAN node to indirectly control the O-RU.
If the O-Cloud functions as the energy saving mode switching unit 12 and/or the communication function reconfiguration unit 13, it is preferable that the NFO of the SMO provides the DMS of the O-Cloud with control information for switching the energy saving mode of the O-RU and/or reconfiguring the communication function of the O-RU, through the O2dms interface in
According to the embodiment described above, energy consumption in the O-RU can be effectively managed based on the energy saving information concerning the energy saving mode that the O-RU can support, notified from the O-RU by the energy saving information notification unit 11. Also, according to the embodiment, the communication function of the O-RU can be flexibly reconfigured by the communication function reconfiguration unit 13.
The present disclosure has been described above based on embodiments. It is obvious to those skilled in the art that various variations are possible in the combination of each component and/or each process in the exemplary embodiments, and that such variations are also encompassed within the scope of the present disclosure.
It should be noted that the structures, the operations, and the functions of each apparatus and/or each method described in the embodiments can be realized by hardware resources or software resources, or by the cooperation of hardware resources and software resources. As hardware resources, for example, processors, ROMs, RAMs and various integrated circuits can be used. As software resources, for example, programs such as operating systems and applications can be used.
The present disclosure may be expressed as the following items.
1. A radio access network control apparatus that controls O-RAN including O-RU as radio unit, comprising at least one processor that performs:
2. The radio access network control apparatus according to item 1, wherein the communication function reconfiguration unit reconfigures at least one of hardware and software of at least one of the transmitter circuit and the receiver circuit in accordance with change in antenna configuration of the O-RU.
3. The radio access network control apparatus according to item 1 or 2, wherein at least a portion of the communication function reconfiguration unit is provided in at least one of the SMO (Service Management and Orchestration) and the Non-RT RIC (Non-Real Time RAN Intelligent Controller), and reconfigures the O-RU through at least one of the Open Fronthaul and the O1 interface.
4. The radio access network control apparatus according to any of items 1 to 3, wherein at least a portion of the communication function reconfiguration unit is provided in at least one of the SMO and the Non-RT RIC, and generates policy or necessary information for reconfiguration of the O-RU based on information collected concerning the O-RU.
5. The radio access network control apparatus according to any of items 1 to 4, wherein at least a portion of the communication function reconfiguration unit is provided in the Near-RT RIC (Near-Real Time RAN Intelligent Controller), and reconfigures the O-RU through the E2 interface.
6. The radio access network control apparatus according to any of items 1 to 5, wherein the reconfiguration by the communication function reconfiguration unit includes deactivating at least a portion of at least one of the transmitter circuit and the receiver circuit in the O-RU.
7. The radio access network control apparatus according to any of items 1 to 6, wherein the at least one processor performs, by an energy saving information notification unit, causing the O-RU to notify energy saving information concerning energy saving mode that the O-RU can support, and the communication function reconfiguration unit reconfigures at least one of hardware and software of at least one of the transmitter circuit and the receiver circuit in the O-RU in accordance with the energy saving mode.
8. The radio access network control apparatus according to item 7, wherein the energy saving information includes the energy consumption of the O-RU in the energy saving mode.
9. The radio access network control apparatus according to item 7 or 8, wherein the energy saving information includes whether the communication function of the O-RU during the energy saving mode can be deactivated.
10. The radio access network control apparatus according to any of items 7 to 9, wherein
11. the radio access network control apparatus according to any of items 7 to 10, wherein the energy saving information notification unit notifies the energy saving information from the O-RU to at least one of the SMO (Service Management and Orchestration), the Near-RT RIC (Near-Real Time RAN Intelligent Controller), the O-CU, and the O-DU, through at least one of the O1 interface and the Open Fronthaul M-Plane.
12. A radio access network control method that controls O-RAN including O-RU as radio unit, comprising:
13. A computer-readable medium storing a radio access network control program that controls O-RAN including O-RU as radio unit, causing a computer to perform:
14. A radio access network control apparatus that controls O-RAN including O-RU as radio unit, comprising at least one processor that performs:
15. The radio access network control apparatus according to item 14, wherein the communication function reconfiguration unit deactivates the communication function of at least one of a plurality of the O-RUs.
16. The radio access network control apparatus according to item 14 or 15, wherein the communication function reconfiguration unit activates the communication function of at least one of a plurality of O-RUs.
17. The radio access network control apparatus according to any of items 14 to 16, wherein
18. The radio access network control apparatus according to item 17, wherein
19. The radio access network control apparatus according to item 17 or 18, wherein the energy saving mode defines a minimum duration of the communication function of the O-RU reconfigured in accordance with the energy saving mode.
20. The radio access network control apparatus according to item 19, wherein the minimum duration is an integer multiple of a duration of at least one of the frame, subframe, slot, and symbol that the O-RU can communicate.
21. The radio access network control apparatus according to item 20, wherein the minimum duration is the same as the duration of at least one of the frame, the subframe, the slot, and the symbol.
22. The radio access network control apparatus according to any of items 17 to 21, wherein the energy saving mode defines at least one of a first transition time to the energy saving mode and a second transition time from the energy saving mode.
23. The radio access network control apparatus according to item 22, wherein the first transition time and the second transition time are equal.
24. The radio access network control apparatus according to item 22 or 23, wherein
25. The radio access network control apparatus according to any of items 17 to 24, wherein the energy saving mode switching unit switches the O-RU to a plurality of the energy saving modes that the O-RU can support.
26. The radio access network control apparatus according to any of items 14 to 25, wherein the communication function reconfiguration unit is provided in at least one of the SMO (Service Management and Orchestration), the Non-RT RIC (Non-Real Time RAN Intelligent Controller), the Near-RT RIC (Near-Real Time RAN Intelligent Controller), the O-CU, and the O-DU.
27. A radio access network control method that controls O-RAN including O-RU as radio unit, comprising:
28. A computer-readable medium storing a radio access network control program that controls O-RAN including O-RU as radio unit, causing a computer to perform:
The application claims priority of Japanese patent application 2022-021185, filed on Feb. 15, 2022, which is hereby incorporated by reference in its entirety.
The present disclosure relates to reconfiguration of communication circuit of O-RU in O-RAN.
1 radio access network control apparatus, 11 energy saving information notification unit, 12 energy saving mode switching unit, 13 communication function reconfiguration unit.
Number | Date | Country | Kind |
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2022-021185 | Feb 2022 | JP | national |
Filing Document | Filing Date | Country | Kind |
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PCT/JP2022/028092 | 7/19/2022 | WO |