Power distribution unit comprising power line

Abstract

A PSDUs (200) and system (500), corresponding methods, computer programs and computer program products are disclosed. The PSDU includes separate PSLs (210), where each PSL provides a different phased input power, and each PSL is connected to the PSU (230) via a switch (220) that connects adjacent PSLs to at least one common PSU such that adjacent PSLs can be connected to or disconnected from the same PSU. The method includes: determining whether a PSL of the individual PSLs has failed or becomes disconnected from an input power source; if it is determined that the PSL has failed or becomes disconnected from the input power supply, the switch is configured to individually connect at least one of the remaining PSLs of the PSLs to at least one of the PSUs, the at least one PSU is previously connected to the PSL that is determined to have failed or become disconnected from the input power supply.

Description

Technical Field

[0001] The present invention relates to methods, apparatus and systems for providing power distribution units (PSDUs) for electronic devices. Background Technology

[0002] 3GPP (3rd Generation Partnership Project) technologies, such as those for 2G, 3G, 4G, 5G, and 6G services, need to meet various metrics, such as low latency, high bandwidth, and high reliability. Telecommunications equipment, such as 3GPP Radio Access Network (RAN) nodes, relies heavily on power supplied by corresponding enclosure systems to ensure high reliability. These enclosure systems themselves depend on different grid mains, which have resilience levels that vary depending on the region and location around the world.

[0003] The input power trunks for telecommunications equipment such as 3GPP RAN nodes are directly connected to the utility distribution system via alternating current (AC) power. Typically, each RAN node has three input power lines L1, L2, and L3, and one neutral power line N. These three power lines are connected to multiple power supply units (PSUs) installed within the enclosure. To maintain a balanced and even distribution of power within the enclosure, such as cabinets, the number of installed PSUs is evenly distributed across the input power lines (L1, L2, L3) to balance the input power to the RAN node.

[0004] Existing solutions for connecting RAN nodes to low-voltage (LV) grids are via a three-phase, three-power-line system, without redundant power lines entering the RAN node. Furthermore, in existing solutions, the RAN node has a specific number of PSUs connected to specific phases of specific power lines, which are typically fixed during the RAN node's manufacturing process. This AC connection unit, present within the RAN node, cannot be reconfigured after manufacturing because it is a static and fixed configuration. Moreover, the output power of each PSU in the AC connection unit is balanced and fixed. Additionally, when one or more phase-controlled inputs fail, the existing system typically loses operation of at least one PSU.

[0005] The paper, "Using a Flexible DC Link Architecture for AC Distribution Network Reconfiguration to Increase Power Delivery Capacity During (n-1) Emergency Situations," discloses a redundant power grid solution. It details how, in the event of a power line failure at a 10 kV rated substation, a 10 kV rated power supply can be provided to a separate power line via an external DC link to deliver the expected 10 kV rated power. This solution proposes an alternative topology where hybrid DC circuit breakers share a common parallel path with the DC link connected in parallel with the AC link.

[0006] US 10757830 B1 discloses a system and method for managing and distributing electricity, wherein the system includes a power input for receiving three-phase power from an external power source, a first power outlet, and a second power outlet. The system also includes a current measuring component configured to measure the current in all phases of the power obtained by an electrical load connected to the first and second power outlets. The system further includes a processing device for analyzing the measured current in all phases of the power obtained by the electrical load. Additionally, the system includes a phase balancing component configured to modify the current in each phase of the power obtained by the electrical load connected to the first and second power outlets such that the current in each phase is substantially balanced. Summary of the Invention

[0007] The purpose of this invention is to improve the reliability of power supply to electronic devices.

[0008] According to a first aspect of the invention, a method is provided implemented by a power distribution unit (PSDU) for an electronic device. The PSDU includes individual power lines (PSLs), each PSL providing a different phase-controlled input power. Each PSL is connected to one or more power supply units (PSUs) via one or more switches, the switches connecting adjacent PSLs to at least one common PSU, such that adjacent PSLs can be connected to or disconnected from the same one or more PSUs. The method includes determining whether a PSL among the individual PSLs has failed or become disconnected from the input power. The method further includes, if it is determined that the PSL has failed or become disconnected from the input power, configuring the one or more switches to individually connect at least one of the remaining PSLs among the PSLs to at least one of the one or more PSUs, the at least one PSU previously connected to the PSL determined to have failed or become disconnected from the input power.

[0009] According to an embodiment, the method includes: disconnecting the physical connection to the PSL if it is determined that the PSL has failed or become disconnected from the input power supply.

[0010] According to an embodiment, the method includes: controlling the one or more switches and the one or more PSUs.

[0011] According to an embodiment, the PSDU includes a controller, and the determination includes: the controller monitoring the interface between each PSL in the PSL and the one or more PSUs.

[0012] According to an embodiment, the method includes: if it is determined that the PSL has failed or become disconnected from the input power supply, then causing the configuration of the one or more switches. In other words, the method includes: if it is determined that the PSL has failed or become disconnected from its power supply, then causing the configuration of the one or more switches.

[0013] According to an embodiment, the monitoring includes monitoring one or more of the following: input voltage, input current, and the state of the one or more switches.

[0014] According to an embodiment, the method includes: disconnecting all PSUs from a power distribution entity (PDE), wherein the PDE supplies power from the PSUs to one or more devices, and / or, during a period of configuring the one or more switches, placing each of the PSUs into a sleep mode and supplying input power to the PDE via a battery or external power source, and, after the one or more switches are configured or reconfigured, reconnecting all PSUs to the PDE and / or turning on the PSUs. According to an embodiment, the period is a predetermined value. According to an embodiment, the period is determined by the controller.

[0015] According to an embodiment, the PSL determined to have failed or become disconnected from the input power supply is a first PSL connected to at least two first PSUs, and the remaining PSLs include a second PSL connected to at least two second PSUs and a third PSL connected to at least two third PSUs. The configuration of the one or more switches includes: disconnecting the path from the first PSL to the first at least two PSUs; connecting the second PSL to the first at least two PSUs; disconnecting at least one of the second at least two PSUs from the second PSL; and connecting the at least one of the second at least two PSUs to the third PSL. A technical advantage of this embodiment is that it reduces power loss due to a failed or disconnected PSL. Input power loss is typically 1 / 3 of the total input power of a device drawing power from a PSDU when the PSDU includes three PSLs, typically 1 / 4 of the total input power of a device drawing power from a PSDU including four PSLs, and so on.

[0016] According to an embodiment, the PSL determined to have failed or become disconnected from the input power supply is a first PSL connected to at least two first PSUs, and the remaining PSLs include a second PSL connected to at least two second PSUs and a third PSL connected to at least two third PSUs. Configuring the one or more switches includes: disconnecting the path from the first PSL to the first at least two PSUs; connecting the second PSL to at least one of the first at least two PSUs; and connecting the third PSL to at least one of the first at least two PSUs. A technical advantage of this embodiment is that it reduces power loss due to PSL failure or PSLs determined to be disconnected. When a PSDU includes three PSLs, input power loss is typically one-third of the total input power of the device drawing power from the PSDU.

[0017] According to an embodiment, the method includes: disconnecting the PSU and one or more switches corresponding to a faulty PSL or a disconnected PSL.

[0018] According to an embodiment, the method includes: detecting whether a faulty PSL or a disconnected PSL has been recovered.

[0019] According to an embodiment, the method includes: reallocating the PSU to a separate PSL such that each PSU receives an equal share of input from the PSL.

[0020] According to an embodiment, the method includes: determining the number of configured PSUs for each PSL; and / or determining the power of the PSUs for each PSL to calculate new PSU locations and new configuration settings for switches associated with the PSL.

[0021] According to a second aspect of the invention, a PSDU for an electronic device is provided. The PSDU includes individual PSLs. Each PSL provides a different phase-controlled input power. Each PSL is connected to one or more PSUs and one or more switches, the one or more switches connecting adjacent PSLs to at least one common PSU, such that adjacent PSLs can be connected to or disconnected from the same one or more PSUs. The PSDU is configured such that: if each of the individual PSLs is connected and receives input power, then each of the individual PSLs is individually connected to one or more individual PSUs, such that each PSU receives an equal share of power from the PSL. The PSDU is configured such that: if one of the individual PSLs is disconnected or cannot receive input power, then the one or more switches are configured to connect the PSU such that each of the one or more PSUs receives an equal share of input from the remaining PSLs.

[0022] According to an embodiment, the PSDU includes a circuit breaker configured to isolate a disconnected PSL or a PSL that cannot receive input power.

[0023] According to an embodiment, the PSDU includes a controller configured to: monitor the power supplied by each of the PSLs, and / or control the one or more switches in response to detecting a fault or disconnection of at least one of the PSLs. According to an embodiment, the controller is configured to monitor one or more of the following: input voltage, input current, and the state of the one or more switches.

[0024] According to an embodiment, the PSDU is configured to monitor the interface between each PSL in the PSL and the one or more PSUs.

[0025] According to an embodiment, the PSDU is configured to control the operation of the one or more switches.

[0026] According to an embodiment, the PSDU is configured to: disconnect all PSUs from the PDE, and / or, during a period in which one or more switches are configured or reconfigured, set all PSUs to sleep mode and supply power to the PDE via battery or external power. The PSDU is also configured to: after one or more switches are configured or reconfigured, reconnect all PSUs to the PDE and turn on the PSUs. According to an embodiment, the period is a predetermined value. According to an embodiment, the period is determined by the controller.

[0027] According to an embodiment, the PSDU is configured to disconnect all PSUs corresponding to PSLs that are disconnected or unable to receive input power.

[0028] According to an embodiment, the PSDU is configured to detect whether a disconnected PSL or a PSL that cannot receive input power has been restored.

[0029] According to an embodiment, if a disconnected PSL or a PSL that could not receive input power has been restored, the PSDU is configured to redistribute the PSUs to the PSLs such that each PSU receives an equal share of input from the PSL.

[0030] According to an embodiment, the PSDU is configured to: determine whether the PSL in the individual PSL has failed or become disconnected from the input power supply.

[0031] According to an embodiment, the PSDU is included in a radio access network (RAN) node.

[0032] According to a third aspect of the invention, a PSDU for an electronic device is provided. The PSDU includes individual PSLs. Each PSL provides a different phase-controlled input power. Each PSL is connected to one or more PSUs and one or more switches, the one or more switches connecting adjacent PSLs to at least one common PSU, such that adjacent PSLs can be connected to or disconnected from the same one or more PSUs. The PSDU includes a processor and a memory. The memory contains instructions executable by the processor, thereby enabling the device to operate to implement a method according to one or more embodiments of the first aspect.

[0033] According to a fourth aspect of the invention, a system for supplying power to an electronic device is provided. The system includes one or more power distribution units (PSDUs) and a cloud orchestrator. Each PSDU includes a separate phase-controlled input (PSL), wherein each PSL provides a different phase-controlled input power. Each PSL is connected to one or more power supply units (PSUs) and one or more switches, the one or more switches connecting adjacent PSLs to at least one common PSU, such that adjacent PSLs can be connected to or disconnected from the same one or more PSUs. The system is configured such that: if each PSL in each PSDU is connected and receives input power, then each PSL is individually connected to one or more individual PSUs, such that each PSU receives an equal share of power from the PSL. The system is configured such that: if one PSL in each PSDU is disconnected or cannot receive input power, then the one or more switches are configured to connect the PSUs such that each of the one or more PSUs receives an equal share of input from the remaining PSLs.

[0034] According to an embodiment, the system is configured to implement a method according to one or more embodiments of the first aspect.

[0035] According to a fifth aspect of the invention, a system for supplying power to an electronic device is provided. The system includes one or more power supply units (PSDUs) and a cloud orchestrator. Each PSDU includes a separate power supply line (PSL), wherein each PSL provides a different phase-controlled input power. Each PSL is connected to one or more power supply units (PSUs) and one or more switches, the one or more switches connecting adjacent PSLs to at least one common PSU, such that adjacent PSLs can be connected to or disconnected from the same one or more PSUs. The PSDU includes a processor and a memory. The memory contains instructions executable by the processor, thereby enabling the system to operate to implement the method according to one or more embodiments of the first aspect.

[0036] According to a sixth aspect of the invention, a computer program is provided, comprising instructions that, when executed by at least one processor of a PSDU or system, cause the PSDU or system to perform a method according to one or more embodiments of the first aspect.

[0037] According to a seventh aspect of the invention, a computer program product stored on a non-transient computer-readable (storage or recording) medium is provided. The computer program product includes instructions that, when executed by a processor of a PSDU or system, cause the PSDU or system to perform the method according to a sixth aspect.

[0038] In the event of a PSL failure, power feeder failure, or in the absence of input power at the PSL for a given phase, some embodiments aim to maximize the amount of power delivered to the input PSU via the remaining PSL or power feeder. The solution described herein reduces power loss due to power line failures (typically one-third of the total input power to devices drawing power from the PSDU). In the event of a PSL failure, the PSDU reconfigures the PSU corresponding to the failed PSL based on the remaining, non-faulty PSL. Therefore, the disclosure herein maximizes the output power from the remaining PSL in a safe and reliable manner.

[0039] Certain embodiments may provide one or more of the following technical advantages. One advantage of some embodiments presented herein is that they enable the delivery of higher power to the radio loads of the RAN node or any other device drawing power from the PSDU without requiring the addition of components such as redundant PSLs. Another advantage is that the provided PSDU improves the efficiency of the input power from the power grid. Another advantage may be that some embodiments are designed to balance input power and reconfigure PSU connections to maintain or increase output power in the event of PSL failure or inability. Another advantage of some embodiments herein is that the solution improves the reliability and availability of the RAN node by adjusting the input power to the RAN node. Furthermore, some embodiments herein increase the input power supplied to the radio loads of the RAN node for a failed PSL using the same PSL path. Attached Figure Description

[0040] The above and additional objects, features and advantages of the present invention will be better understood from the following illustrative and non-limiting detailed description of embodiments of the invention with reference to the accompanying drawings, in which:

[0041] Figure 1 A prior art embodiment of a power distribution unit for an electronic device is shown.

[0042] Figure 2 A power distribution unit (PSDU) according to an embodiment of the present invention is shown.

[0043] Figure 3a A PSDU according to an embodiment of the present invention is shown.

[0044] Figure 3bA PSDU according to an embodiment of the present invention is shown.

[0045] Figure 4 A method implemented by a PSDU according to an embodiment of the present invention is shown.

[0046] Figure 5 A system according to an embodiment of the present invention is shown.

[0047] Figure 6 An electronic device according to an embodiment of the present invention is shown.

[0048] Figure 7 An example of an apparatus implemented according to an embodiment of the present invention is shown.

[0049] Figure 8 A computer program product according to an embodiment of the present invention is shown.

[0050] Figure 9 An example of a communication system 900 according to an embodiment of the present invention is shown.

[0051] Figure 10 A network node 910 according to an embodiment of the present invention is shown.

[0052] All accompanying drawings are schematic and not necessarily drawn to scale, and only show the parts necessary to illustrate the invention in general, wherein other parts may be omitted or are merely suggested. Detailed Implementation

[0053] Some embodiments contemplated herein will now be described more fully with reference to the accompanying drawings. Examples are provided by way of example to convey the scope of the subject matter to those skilled in the art.

[0054] Currently, existing solutions present numerous challenges. Grid distribution systems exist as mesh networks, composed of multiple ring structures to enhance the power availability of medium-voltage (MV) distribution networks. In the event of a fault, the grid distribution system operates by reconfiguring or altering the power feeders or power lines within the MV distribution network to provide fault isolation. Power line / feeder reconfiguration is not implemented in LV distribution networks, and all Radio Access Network (RAN) nodes are directly connected to the LV distribution network. Therefore, in LV distribution networks, if a power line fails and subsequent power line losses occur for a phase, many RAN nodes (e.g., traditional RAN nodes such as 2G and 3G RAN nodes) may be unable to maintain and deliver the power required for a specific radio load. Furthermore, some existing solutions propose adding additional DC links to support alternative topologies (where hybrid DC circuit breakers share a common parallel path with DC links connected in parallel with AC links). Adding these new DC links significantly increases the complexity, cost, and infrastructure of grid solutions.

[0055] Generally, each phase in a RAN node has the same number of power supply units (PSUs) connected to it for phase balancing purposes. Since the output current of each PSU is balanced and equal, from the controller's perspective, the current from each phase of the three-phase power supply is also the same. In the event of a single-phase power line fault, the system loses one-third of its total power capacity and may severely impact the operation of the RAN node (e.g., shutting down radio technology in the RAN node; RAN node failure; RAN node damage).

[0056] This disclosure provides a power distribution unit (PSDU) for electronic devices in a network, a method implemented by the PSDU, and a system including the PSDU. The purpose of this disclosure is to maximize the input power of electronic devices. Another purpose of this disclosure is to improve the reliability and availability of electronic devices. The PSDU includes one or more power lines (PSLs), one or more switches, and one or more power supply units (PSUs). The advantages of this disclosure are avoiding the addition of complex direct (DC) links and reducing the cost of power management and distribution systems.

[0057] In the event of a fault condition (where a phase at the input of a power line fails or the power line has an input power source from the faulty phase), when or if the power system loses an input power line, the power system will lose one-third of its output capacity. This means that the PSU connected to the power line with the faulty phase or the power line with the faulty input becomes unavailable, and one-third of the total input power to the RAN node is lost, resulting in the inability to deliver power to the RAN node.

[0058] Figure 1 An example power distribution unit according to the prior art is shown, in which a PSDU 100 for electronic devices is provided. The PSDU 100 includes one or more PSLs 110 and one or more corresponding PSUs 130 for each PSL. The PSDU 100 provides power to the electronic devices via the PSLs and the PSUs corresponding to specific PSLs. Each PSL has a one-to-one or one-to-many mapping to a PSU. In the example, the PSDU 110 provides power to the electronic devices via PSL 1, PSL 2, and PSL 3 by delivering power via the corresponding PSUs (PSU 1…M for PSL 1, PSU y+1…y+M for PSL 2, and PSU z+1…z+M for PSL 3). If there is a fault in PSL 1 or PSL 1 cannot receive any input power, then PSUs 1…M will not be able to deliver power to the electronic devices. Therefore, in this case, the electronic devices will receive less power than when PSL 1 is working normally or without fault. In most implementations, such as US 10757830 B1, the amount of power supplied through each PSL in a three-phase PSL is the same. Therefore, if PSL 1 fails, the electronic device will receive one-third less power than under normal operating conditions. This is not only a significant loss of power for the electronic device but also reduces the efficiency of power input via the grid. Furthermore, the reduced input power in the electronic device can lead to outages, malfunctions, and reduced availability. In some examples where the electronic device is a 3GPP RAN node, this failure in the PSL may cause some wireless communication technologies (such as 2G and 3G) to shut down completely. In some cases, a failure in the PSL may lead to lower availability and reliability of the RAN node, which typically results in lower throughput. In other examples (where the electronic device is a non-3GPP RAN node or a non-3GPP access node), failures in multiple PSLs may lead to failures and / or suboptimal reliability in non-3GPP RAN nodes or non-3GPP access nodes.

[0059] Figure 2 A PSDU 200 according to an embodiment of the present disclosure is shown. The PSDU 200 includes individual PSLs 1…N 210, each PSL providing a different phase-controlled input power. In other words, the PSDU 200 includes a plurality of individual PSLs 210, each PSL providing a different phase-controlled input power. The PSLs 210 receive input power from a mains power source or the grid. Each of the individual PSLs is connected to one or more PSUs 230 (e.g., as shown in the image). Figure 2As shown, six PSUs (1-6) can be deployed, but in other examples, more or fewer PSUs may be used, along with one or more switches 1…L 220 (e.g., one switch per PSL), which connect adjacent PSLs to at least one common PSU. PSDU 200 is configured such that adjacent PSLs in PSL 210 can be connected to or disconnected from the same one or more PSUs of their respective adjacent PSLs. In some examples, the configuration may include adapting or modifying PSDU 200. Furthermore, PSDU 200 is configured such that if each PSL in individual PSL 210 is connected and receives input power, each PSL in individual PSL 210 is individually connected to one or more individual PSUs 230, such that each PSU receives an equal share of power from the individual PSL. Suitable passive or active electronic or electrical components may be included in the path between the PSU and PSL, including switches (or within switches), to prevent current or voltage from one input from being received at another input. Furthermore, PSDU 200 is configured such that if one of the individual PSLs is disconnected or unable to receive input power, one or more switches 220 are configured to connect the PSUs such that each of the one or more PSUs 230 receives an equal share of input from the remaining PSLs. This means that if a PSL is disconnected or unable to receive input power, it means that the PSL is not receiving input power from the main power source or distribution unit connected to the grid. In other words, switch 220 is configured to switch the PSL adjacent to the faulty or failed PSL to the PSU previously powered by the faulty or failed PSL. In some embodiments, a failed PSU may also be present, just like a faulty PSL. The remaining PSUs and PSLs may be configured to arrange themselves such that the input power from the PSL is evenly distributed among the remaining PSUs, and the required power is delivered to the electronic equipment. In some embodiments, PSDU 200 is configured to determine whether a PSL in an individual PSL has failed or become disconnected from the input power source.

[0060] For example, consider a PSDU 200 comprising three PSLs, each providing different phase-controlled input power: PSL 1, PSL 2, and PSL 3. If PSL 1 is adjacent to PSL 2, then the PSDU 200 is configured such that either PSL 1 or PSL 2 can be connected to two or only one of the corresponding PSUs of PSL 1 or PSL 2, or disconnected from two or only one of the corresponding PSUs of PSL 1 or PSL 2. If the PSUs connected to PSL 1 are PSU 1 and PSU 2, and the PSUs connected to PSL 2 are PSU 3 and PSU 4, then PSU 1 and PSU 2 can be connected to PSL 2, or PSU 3 and PSU 4 can also be connected to PSL 1.

[0061] In the example, if the total input power of the PSDU 200, which includes three PSLs, is 12 kW, and two PSUs are connected to each PSL, then each PSL receives 2 kW of input power. Now, if, in the previous example, PSL 1 fails to receive or acquire input power or becomes faulty, the PSDU 200 dynamically reconfigures PSL 2 and PSL 3 so that PSL 2 and PSL 3 can be connected to the PSUs connected to PSL 1 and PSL 2 respectively, so that each PSU receives an equal share of input power from the remaining PSLs (PSL 2 and PSL 3). In other words, PSL 3 is connected to its own / previous PSU and half of the PSUs previously connected to PSL 2, and PSL 2 remains connected to its other half of the PSUs plus the PSUs previously connected to the faulty PSL 1, thus evenly distributing the PSUs between PSL 2 and PSL 3. Even if PSL 1 fails, the total input power from PSL 2 and PSL 3 can still be maintained at 12 kW. Therefore, each PSU will still receive 2kW of input power, which is the same as if all three PSLs were operating normally. In other embodiments, the number of PSUs may be more or less, but ideally, the number of PSUs should be balanced or equal for each PSL.

[0062] In an embodiment, PSDU 200 includes one or more switches 220, such as contactors, circuit breakers (which may be motor-driven), and MOSFETs. The advantage of using contactors, circuit breakers, and / or MOSFETs is the dynamic and autonomous control of switch reconfiguration to redirect power from a faulty PSL to the PSU between a normally operating / fault-free PSL and a PSU. In an embodiment, PSDU 200 includes a circuit breaker 260 configured to isolate a disconnected PSL or a PSL that cannot receive input power.

[0063] In an embodiment, PSDU 200 is configured to disconnect from a faulty PSL, a disconnected PSL, or a PSL that cannot receive input power from the grid or mains power supply. PSDU 200 may include a controller configured to control or switch the switch. In an example embodiment, PSDU 200 is configured to disconnect all PSUs 230 from the distribution entity PDE (which directs power to one or more devices), or to set the PSUs to an OFF state or sleep state 210, and to supply input power to the PDE via a battery or any external power source. In other words, PSDU 200 is configured to reconfigure the PSU corresponding to the faulty PSL by connecting the PSU corresponding to the faulty PSL to a non-faulty PSL. This is to avoid any large transients or power spikes during phase switching / reconfiguration. After reconfiguration, the PSU is set to its normal operating state or reconnected to the PDE. In other examples, appropriate filtering is applied between the PSU and the PDE to filter out any transients. Even if one of the PSLs fails, the total input power at PSDU 200 can be allocated to the remaining PSLs because a significant buffer of PSL capacity (e.g., 60%-70% of the total PSL capacity) is typically unused. In an embodiment, PSDU 200 includes one or more switches, such as contactors, circuit breakers (which may be motor-driven), and MOSFETs. The advantage of using contactors, circuit breakers, and / or MOSFETs is the autonomous control of the redirection of the input PSL phase. These one or more switches can be controlled by an external controller. In an embodiment, PSU reconfiguration can be computed locally or from a cloud-based environment.

[0064] Figure 3aA PSDU 200 according to an embodiment of the present invention is illustrated. The PSDU 200 is configured to deliver power from a three-phase input to an electronic device 600. The electronic device may include one or more radio units, baseband units, and routers. The three-phase input includes a first phase, a second phase, and a third phase, and PSL 210 includes a first PSL 211, a second PSL 212, and a third PSL 213. One or more switches 220 include a first switch 221, a second switch 222, a third switch 223, and switch assemblies 226-229. In some embodiments, the one or more switches may be circuit breakers, repeaters, electrical isolators, diodes, or any passive electrical device. The first PSL 211 may be connected to the first phase, the first switch 221, and a first assembly having two PSUs connected in series, wherein the two PSUs of the first assembly are electrically connected in parallel. The second PSL 212 may be connected to the second phase, the second switch 222, and a second assembly having two PSUs connected in series, wherein the two power supply units of the second assembly are electrically connected in parallel. The third PSL 213 can be connected to the third phase, the third switch 223, and a third assembly with two PSUs connected in series, wherein the two PSUs of the third assembly are electrically connected in parallel. The switching assembly is configured to allow or interrupt the electrical connections for the first, second, and third assemblies of the PSUs. The PSDU 200 is also configured to operate the first, second, and third switches and the switching assembly such that, upon detection of a fault in one of the first, second, or third PSLs, each of the remaining fault-free PSLs includes three PSUs electrically connected in parallel. In some embodiments, the number of PSUs connected to each of the first, second, and third PSLs can be N PSUs per PSL, where N is an integer. Therefore, PSDU 200 can also be configured to operate the first switch, second switch, third switch, and switch assembly such that, upon detection of a fault in one of the PSLs in the first, second, or third PSL, each of the remaining fault-free PSLs includes N+N / 2 PSUs electrically connected in parallel. In some embodiments, the number of PSUs may be greater than or less than 2, but ideally should be balanced or equal to each PSL. Individual physical devices may be included in separate discrete components, or in other examples, may be included in a component having multiple individual functional units within PSDU 200. In some embodiments, PSDU 200 is configured to determine whether a PSL in an individual PSL has failed or become disconnected from the input power supply.

[0065] In one embodiment, PSDU 200 includes PDE 240. PDE 240 includes PSU 230. In one embodiment, PSDU 200 is configured to disconnect all PSU 230 from PDE 240, and / or, during a period when one or more switches are configured or reconfigured, put all PSUs into sleep mode and supply power to PDE 240 via battery, and, after one or more switches are configured or reconfigured, reconnect all PSUs to PDE and / or turn on PSUs. In one embodiment, the period is a predetermined value. In another embodiment, the period is determined by controller 250. In one embodiment, PSUs may reside outside PDE. In one embodiment, PSDU 200 includes controller 250 for enabling reconfiguration of switches in PSDU 200 via a new interface. In one embodiment, controller 250 is configured to monitor the power supplied by each PSL and control one or more switches in response to detecting a fault or disconnection of at least one PSL.

[0066] In this embodiment, the first switch 221 is a first circuit breaker (CB) including an input side and an output side, and the first switch 221 is connected to a first PSL via the input side and to a first assembly having N PSUs via the output side. The second switch is a second CB including an input side and an output side, and the second switch is connected to a second PSL via the input side and to a second assembly having N PSUs via the output side. The third switch is a third CB including an input side and an output side, and the third switch is connected to a third PSL via the input side and to a third assembly having N PSUs via the output side.

[0067] In one embodiment, PSDU 200 includes multiple interfaces for enabling the measurement of power, voltage, current, and control signals within PSDU 200. In another embodiment, these multiple interfaces can enable the reconfiguration of switches within PSDU 200. In yet another embodiment, PSDU 200 includes interfaces for monitoring input AC voltage (VAC) and / or AC current (IAC). In yet another embodiment, one of these interfaces is configured to remotely turn the switch on or off, i.e., control the state of switch 220.

[0068] In one embodiment, the PSDU 200, including an interface, is configured to monitor the VAC at a node after switch 220 and before PSU 230. In another embodiment, the interface is configured to monitor the operational status of the PSU and remotely turn the PSU on or off. In yet another embodiment, the PSDU 200 is configured to detect whether a disconnected PSL or a PSL unable to receive input power has been restored. If a disconnected PSL or a PSL unable to receive input power has been restored, the PSDU is also configured to reassign the PSU to the PSL. In one embodiment, the PSDU 200 is included in an electronics unit. In another embodiment, the PSDU 200 is included in a RAN node. In one embodiment, the PSDU includes a controller 250. The controller is configured to monitor the input voltage and / or input current and / or the status of one or more switches 220. In one embodiment, the controller 250 is configured to monitor the interface between each PSL and one or more PSUs. In yet another embodiment, the controller is configured to monitor the power supplied by each PSL and control one or more switches in response to detecting a fault or disconnection of at least one PSL. In this embodiment, the controller is configured to control the operation of one or more switches 220.

[0069] In an embodiment, the switching assembly includes a fourth switch 226, a fifth switch 227, a sixth switch 228, and a seventh switch 229, each switch including a first side, a second side, and a third side. In an embodiment, a first assembly having N PSUs is connected to the output side of the first switch 221 and the first side of the fourth switch 226 via a first node placed before the first assembly. N / 2 of the N PSUs in the second assembly are connected to the second side of the fourth switch 226 and the second side of the fifth switch 227 via a second node placed before the second assembly, while the remaining N / 2 PSUs in the second assembly are connected to the second side of the sixth switch 228 and the second side of the seventh switch 229 via a third node placed before the second assembly. A third assembly having N PSUs is connected to the output side of the third switch 223 and the first side of the seventh switch 229 via a fourth node placed before the third assembly. The output side of the second switch 222, the first side of the fifth switch 227, and the first side of the sixth switch 228 are connected via a fifth node placed before the second assembly. The first, second, and third components, each having N PSUs, are connected via a sixth node placed after the first, second, and third components, wherein the sixth node is configured to deliver power to the electronic device 600. The arrangement in the embodiments herein enables monitoring of input voltage and / or input current at the switches and PSUs, and allows for rapid switching to a fault-free PSL while ensuring minimal or no cross-conduction in the PSDU 200. In the embodiments, in the initial state, the first, second, and third switches are on, the fourth switch is off, the fifth and sixth switches are on, and the seventh switch is off.

[0070] In one embodiment, controller 250 is connected to the input side of each of the first, second, and third switches. In another embodiment, controller 250 is connected to the third side of each of the fourth, fifth, sixth, and seventh switches. Furthermore, controller 250 is connected to the first, second, third, fourth, and fifth nodes. In one embodiment, controller 250 is configured to monitor input voltage and / or input current for each PSU from the first, second, and third components and for each PSL from the PSL. Controller 250 is also configured to monitor the state of the first, second, third, fourth, fifth, sixth, and seventh switches. Furthermore, controller 250 is configured to control the operation of the first, second, third, fourth, fifth, sixth, and seventh switches. In one embodiment, controller 250 is configured to detect a fault in any of the first, second, or third phases. In one embodiment, controller 250 is configured to switch the fourth, fifth, sixth, and seventh switches based on the detection of the fault phase. In one embodiment, controller 250 is configured to disconnect N PSUs and the switches corresponding to the PSLs connected to the fault phase. In one embodiment, the controller is configured to uniformly distribute N PSUs corresponding to the first, second, and third components such that equal power is delivered to the electronic device 600 via PSLs connected to phases other than the fault phase.

[0071] In one embodiment, PSDU 200 includes an interface (interface 1) for monitoring input AC voltage (VAC) and AC current (IAC). Interface 1 is also configured to switch (on / off) switches 221-223. In another embodiment, an interface (interface 2) is configured to monitor VAC and IAC at nodes downstream of switch 220 and upstream of PSU 230. Interface 2 is also configured to turn switches 226-229 on or off. In another embodiment, an interface (interface 3) is configured to monitor the operating status of the PSU, including monitoring the PSU's IAC and VAC, and to remotely turn the PSU on or off. In yet another embodiment, interface 3 is configured to detect whether a disconnected PSL or a PSL that could not receive input power has been restored.

[0072] Figure 3bA PSDU 200 according to an embodiment of the present invention is shown. The PSDU 200 includes PSL 210. PSL 210 includes a first PSL 211, a second PSL 212, and a third PSL 213. Each of the three PSLs 211, 212, and 213 is identical and draws power from a phase of a three-phase input power supply. The PSDU 200 includes a switch 220, which includes a switch assembly 220. The switch assembly includes switches 221, 222, 223, 226, 227, 228, and 229. Switches 221-223 are configured to act as a circuit breaker CB such that if any PSL of PSL 210 fails or does not receive input power, there is no cross-conduction between the PSLs. Switches 221-223 are also configured to advantageously provide isolation for one or more PSLs 210 that may fail. Switches 221-223 include a single input line and more than one output line, such that switches 221-222 are reconfigurably and adaptively connected to switches 226-229 to route input power from non-faulty PSLs to switches 226-229. Switches 226-229 are configured to provide input power from PSLs 211, 212, and 213 to PSUs 1-6 in PSU 230. Switches 226-229 are reconfigurably and adaptively configured to route input power from non-faulty PSLs to PSU 230 while maximizing input power to the PSUs. PSU 230 includes a set of three equal numbers of PSUs, such that each set includes two PSUs. In other embodiments, the number of PSUs corresponding to each PSL may be less than or greater than two, and the number of PSUs corresponding to each PSL is an integer. PSU 230 is configured to provide power to electronic device 600. In the example, electronic device 600 may be a RAN node. In an embodiment, switch 220 includes switching components that provide isolation from a faulty PSL, reconfiguration of input power from the PSL, and flexibility for maximizing input power to PSU 230. The switching components may be implemented in various ways, not limited to the examples and embodiments herein.

[0073] Figure 4A method implemented by a PSDU 200 according to an embodiment of the present invention is illustrated. A method implemented by a PSDU is provided. The PSDU includes separate power lines PSL 210, wherein each PSL provides a different phase-controlled input power, and each PSL is connected to one or more power supply units PSU 230 via one or more switches, the one or more switches connecting adjacent PSLs to at least one common PSU, such that adjacent PSLs can be connected to or disconnected from the same one or more PSUs. In the described method, ideally, an equal number of PSUs are connected to each PSL to balance the system. Therefore, the described embodiment refers to connecting all PSUs “equally” to the PSUs. In some real-world scenarios, this “balance” or “equal” should be interpreted as substantially equal. For example, if an uneven number of PSUs are available, one PSL may have one more or one less PSU than another PSL, but the intention to adjust the number of remaining PSUs to make substantially equal among each PSL still exists.

[0074] The method includes step 400: determining whether a PSL in a single PSL has failed or become disconnected from the input power supply. The method includes step 410: if it is determined that a PSL has failed or become disconnected from the input power supply, configuring one or more switches to individually connect at least one of the remaining PSLs in the PSL to at least one of the one or more PSUs, the at least one PSU previously connected to the PSL determined to have failed or become disconnected from its power supply. In other words, the method includes step 410: if it is determined that a PSL has failed or become disconnected from the input power supply, configuring one or more switches to individually connect at least one of the remaining PSLs in the PSL to at least one of the one or more PSUs, the at least one PSU previously connected to the PSL determined to have failed or become disconnected from its previously connected input power supply. In an embodiment, the method further includes: configuring one or more switches to connect PSUs such that if one of the individual PSLs fails or cannot receive input power, each of the one or more PSUs receives an equal share of input from the remaining PSLs. The method includes step 415: if it is determined that the PSL has not failed or become disconnected, configure each PSL in the individual PSLs to be individually connected to one or more individual PSUs, such that if each PSL in the individual PSLs is connected and receives input power, each PSU receives an equal share of power from the PSL. The method includes step 420: disconnecting the connection to the disconnected PSL or the PSL that cannot receive input power. In some examples, step 420 may precede step 410. The method optionally includes step 430: disconnecting the PSU 230 and one or more switches 220 corresponding to the failed or disconnected PSL. In some examples, step 430 may precede step 420 and / or step 410. The method optionally includes step 440: detecting whether the failed or disconnected PSL has been restored. The method optionally includes step 445: determining whether the failed or disconnected PSL has been restored. The method may optionally include step 450: if the faulty PSL has been recovered, then PSU 230 is reassigned to PSL 210 such that each PSU receives an equal share of input from the PSL. The method may optionally include: if the faulty PSL has not been recovered, then returning to step 410.

[0075] In an embodiment, the method includes: waiting a few seconds (e.g., 5 seconds) to determine if a disconnected PSL or a PSL 400 that cannot receive input power, or a faulty PSL has recovered 445. In an embodiment, if a disconnected PSL or a PSL that cannot receive input power is determined to have failed, or if the determination that a faulty PSL is recovering is false (i.e., the faulty PSL has not yet recovered), the method includes step 452: disconnecting all PSUs 230 from PDE 240, wherein the PDE provides power from the PSUs to one or more devices, and / or step 454: during a period of time when one or more switches are configured, or if one or more switches are configured, placing each PSU in sleep mode and providing input power to the PDE via battery or external power supply, and / or step 456: after one or more switches are configured or reconfigured, reconnecting all PSUs to the PDE and / or turning on the PSUs. In an embodiment, the period is a predetermined value. In an embodiment, the period is determined by controller 250.

[0076] In an example embodiment, the PSL determined to have failed or become disconnected from the input power supply is a first PSL 211 connected to at least two first PSUs (PSU 1 and PSU 2), and the remaining PSLs include a second PSL 212 connected to at least two second PSUs (PSU 3 and PSU 4) and a third PSL 213 connected to at least two third PSUs (PSU 5 and PSU 6). The method includes configuring one or more switches, including step 470: disconnecting the path from the first PSL 211 to the first at least two PSUs (PSU 1 and PSU 2). The method further includes step 472: connecting the second PSL 212 to the first at least two PSUs (PSU 1 and PSU 2). Furthermore, the method includes step 474: disconnecting at least one of the second at least two PSUs (PSU 4) from the second PSL 212. Furthermore, the method includes step 476: connecting at least one of the second at least two PSUs (PSU 4) to the third PSL 213. In an embodiment, the number of PSUs connected to each PSL in PSLs 211, 212, and 213 may be less than or greater than two PSUs.

[0077] In another example embodiment, the PSL determined to have failed or become disconnected from the input power supply is a first PSL 212 connected to at least two first PSUs (PSU 3 and PSU 4), ​​and the remaining PSLs include a second PSL 211 connected to at least two second PSUs (PSU 1 and PSU 2) and a third PSL 213 connected to at least two third PSUs (PSU 5 and PSU 6). The configuration of one or more switches includes step 480: disconnecting the path from the first PSL 212 to the at least two first PSUs (PSU 3 and PSU 4). The method also includes step 482: connecting the second PSL 211 to at least the first PSU (PSU 3) of the at least two first PSUs, and step 484: connecting the third PSL 213 to at least the second PSU (PSU 4) of the at least two first PSUs. If it is assumed that a PSL has failed or become disconnected from the input power supply, the number of PSUs can be allocated such that each of the remaining PSLs includes an equal number of PSUs.

[0078] In an embodiment, where PSDU 200 includes controller 250, the determination in step 400 includes: optionally, the controller monitors the interface between each PSL and one or more PSUs in step 432. In an embodiment, if it is determined that a PSL has failed or become disconnected from the input power supply, controller 250 implements a method that results in the configuration of one or more switches. In other words, if it is determined that a PSL has failed or become disconnected from its power supply, controller 250 implements a method that results in the configuration of one or more switches. In an embodiment, the method optionally includes step 434: controlling the switches and / or PSUs via controller 250. In an embodiment, the method includes: monitoring the input voltage and / or input current and / or the state of one or more switches. In an embodiment, the method includes: disconnecting all PSUs from the input PSL and providing input power to the PSUs via battery 280. In an embodiment, the method optionally includes step 436: determining the number of configured PSUs per PSL or per phase. In an embodiment, the method may optionally include step 438: determining the power of each PSL or each phase of the PSU to calculate the new PSU position and the new configuration settings of the switches associated with the PSL or phase. All steps presented herein can also be implemented by the PSDU 200 without a controller. The method steps and optional method steps described herein can be advantageously combined in any arrangement.

[0079] In an embodiment, the present invention provides a method for detecting whether an input PSL phase is lost or faulty, such that the PSDU is reconfigured by connecting the PSU to the remaining "working" PSL phase to deliver maximum power to the radio load at the RAN node. In an embodiment, the method includes monitoring and reconfiguring interfaces 1, 2, and 3 connected to controller 250. A technical advantage of the method presented herein is that it avoids cross-conduction between input PSL phases by disconnecting the faulty PSL phase before reconfiguring components of the PSDU 200 (e.g., switch 220 and PSU 230). In an embodiment, controller 250 continuously monitors one or more of the input voltage, input current, and power status of each component connected to interfaces 1, 2, and 3 of controller 250.

[0080] In one embodiment, the method includes configuring switch 220, including switching components 226-229, to provide isolation of a faulty PSL, reconfiguration of input power from the PSL, and flexibility for maximizing input power to PSU 230. In an example, the method includes turning off a first switch to isolate and prevent cross-conduction of the first PSL or input from the first PSL or the first phase if a first PSL fails. Advantageously, the method enables the avoidance of short circuits between the first and second PSLs due to any errors in the PSDU. This also applies to any other combination of PSLs in PSDU 200. In one embodiment, the method includes turning the PSU corresponding to the faulty PSL to an OFF state to avoid large transients during reconfiguration and reconnection to the remaining PSL or remaining phase. In one embodiment, the method includes turning off a third switch, waiting a few seconds (e.g., 3 seconds), and then turning on a seventh switch to move N / 2 PSUs corresponding to the second PSL to the third PSL or the third phase. The method further includes: waiting a few seconds (e.g., 3 seconds) and activating a fourth switch to move the PSU corresponding to the first PSL and the remaining N / 2 PSUs corresponding to the second PSL to the second phase of the second PSL. If N is even, then there is an equal division of PSUs corresponding to the faulty PSL. If N is odd, then there is an equal division of PSUs corresponding to the faulty PSL, with one portion consisting of N / 2 + 0.5 PSUs and the remaining portion consisting of N / 2 - 0.5 PSUs. In some embodiments, if N is odd, then (N-1) / 2 PSUs are equally divided to receive power from the input non-faulty PSL. In embodiments, the method includes: reading or monitoring the status of each PSU and controlling the PSUs.

[0081] In an embodiment, the method includes: turning on the PSU and then monitoring or reading the PSU input voltage and / or input current to ensure that the PSU is uniformly connected to the first PSL, second PSL, and third PSL. Control of the first, second, and third switches, as well as the fourth, fifth, sixth, and seventh switches, is not performed simultaneously. This method provides the technical advantage of avoiding cross-conduction and transients during the reconfiguration of switch 220 and PSU 230. In an embodiment, the method includes: monitoring the state of switch 220 and PSU 230 whenever the first PSL fails or the first phase is lost. When or if the first phase or the first PSL is returned / restored, the method returns to the function described in step 415. This method can be appropriately adapted to handle situations where a failure occurs at the second or third PSL or any other PSL of PSDU 200.

[0082] In the previously presented example, the method includes: checking the input power at each of the first, second, and third PSLs. After restoring the first PSL, the method includes: reversing the order of steps performed in the previously presented example regarding a fault in the first PSL. The method includes: shutting down each PSU and waiting for a few seconds (e.g., 3 seconds). Furthermore, the method includes: shutting down the first switch and waiting for a few seconds (e.g., 3 seconds). The method also includes: shutting down the seventh switch and waiting for a few seconds (e.g., 3 seconds). Additionally, the reversal method includes: turning on the third switch and waiting for a few seconds (e.g., 3 seconds). The method includes: turning on the PSU and waiting for a few seconds (e.g., 3 seconds). The method includes: turning on the first switch and waiting for a few seconds (e.g., 3 seconds). In an embodiment, the method includes: reading or monitoring the input AC voltage or current and the state of the PSU to ensure that the PSU is uniformly connected to the three PSLs. If a fault is determined to have occurred in the second or third PSL and is subsequently restored, similar methods and reversal procedures may be applied.

[0083] Figure 5A system 500 according to an embodiment of the present invention is illustrated. System 500 includes one or more Power Distribution Units (PSDUs) and a cloud orchestrator 550. Each PSDU includes a separate power line (PSL), wherein each PSL provides different phase-controlled input power, and each PSL is connected to one or more Power Supply Units (PSUs) and one or more switches, the one or more switches connecting adjacent PSLs to at least one common PSU, such that adjacent PSLs can be connected to or disconnected from the same one or more PSUs. The system is configured such that: if each PSL in each PSDU is connected and receives input power, then each PSL is individually connected to one or more individual PSUs, such that each PSU receives an equal share of power from the PSL. Furthermore, the system is also configured such that: if one PSL in each PSDU is disconnected or cannot receive input power, then one or more switches are configured to connect PSUs such that each of the one or more PSUs receives an equal share of input from the remaining PSLs. In an embodiment, the system is configured to implement operation according to one or more methods of PSDU 200. Cloud orchestrators can be configured to implement, for example, with Figure 4 The operation is as defined in the relevant text of the method. In an embodiment, cloud orchestrator 550 is configured to monitor one or more of the following: input voltage, input current, and the state of a switch. In an embodiment, cloud orchestrator is configured to control switch 220. Cloud orchestrator can control the function of one or more PSDUs to deliver power to one or more electronic devices. Cloud orchestrator is configured to monitor information from multiple electronic devices including one or more PSDUs. In an embodiment, a local controller for an electronic device can detect a phase loss at PSL and then report it to cloud orchestrator.

[0084] Figure 6 An electronic device 600 according to an embodiment of the present invention is illustrated. The electronic device 600 includes a RAN node. The RAN node includes one or more radio units, one or more baseband units, and one or more routers. A PSDU is configured to deliver power to the electronic device. The RAN node may include a PSDU. In some embodiments, the RAN node receives power from outside the PSDU.

[0085] Figure 7An example of an apparatus 700 implemented according to an embodiment of the present invention is shown. Apparatus 700 may be a PSDU 200 or a system 500. Processing circuitry 710 is adapted / configured / operable to cause a controller to perform a set of operations, or, for example, steps 400, 410, 415, 420, 430, 432, 434, 436, 440, 450 disclosed above, for example by executing instructions stored in memory 730. Processing circuitry 710 may include one or more of the following: a microprocessor, a controller, a central processing unit, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or any other suitable computing device, resource, or combination of hardware, software, and / or coding logic operable to provide, individually or in combination with other components of apparatus 700 (such as memory 730), to provide relevant functionality. In this respect, processing circuitry 710 may implement specific functional elements, units, or modules. Memory 730 may include one or more non-volatile storage media and / or one or more volatile storage media or cloud-based storage media. In embodiments where the processing circuitry 710 includes a programmable processor 740, a computer program product 810 may be provided in the PSDU 200 or system 500. Such a computer program product, when combined with... Figure 8 As shown. Memory 710 can store any suitable instructions, data, or information, including software, including logic, rules, code, tables, and / or other instructions / computer program code that can be executed by processing circuitry 710 and utilized by device 700, or more. Memory 730 can also be used to store any calculations performed by processing circuitry 710 and / or any data received via I / O interface circuitry 720, such as input from device 700. In some embodiments, processing circuitry 710 and memory 730 are integrated.

[0086] Figure 8An example of a computer program product according to an embodiment of the present invention is shown. The computer program product 810 includes a computer-readable storage medium 830 storing a computer program 820, which includes computer-readable instructions. The computer-readable medium 830 of the device 700 may be a non-transient computer-readable medium, such as a magnetic medium (e.g., a hard disk), an optical medium, a storage device (e.g., random access memory, flash memory), etc. In some embodiments, the computer-readable instructions of the computer program 820 are configured such that, when executed by the processing circuitry 710, the computer-readable instructions cause the device 700 to perform the steps described herein (e.g., 400, 410, 415, 420, 430, 432, 434, 436, 440, 450). In other embodiments, the device 700 may be configured / operated to perform the steps described herein without requiring code. That is, for example, the processing circuitry 710 may consist only of one or more ASICs. Therefore, the features of the embodiments described herein can be implemented in hardware and / or software.

[0087] Figure 9An example of a communication system 900 according to some embodiments is shown. In this example, the communication system 900 includes a telecommunications network 902, which includes an access network 904 (such as a radio access network (RAN)) and a core network 906, the core network 906 including one or more core network nodes 908. The access network 904 includes one or more access network nodes, such as network nodes 910a and 910b (one or more of which may generally be referred to as network node 910), or any other similar 3GPP access node or non-3GPP access point. Electronic devices 600 and / or apparatus 700 may include network node 910. Furthermore, as those skilled in the art will understand, network nodes are not necessarily limited to implementations in which the radio portion and baseband portion are provided and integrated by a single vendor. Therefore, it is understood that network nodes include decomposed implementations or portions thereof. For example, in some embodiments, the telecommunications network 902 includes one or more Open RAN (ORAN) network nodes. An ORAN network node is a node in telecommunications network 902 that supports ORAN specifications (e.g., specifications published by the O-RAN Alliance or any similar organization) and can operate alone or in conjunction with other nodes to perform one or more functions of any node in telecommunications network 902 (including one or more network nodes 910 and / or core network node 908). Examples of 3GPP RAN nodes are 2G RAN nodes or base transceiver substations, 3G RAN nodes or node Bs, 4G RAN nodes or node Bs, 5G RAN nodes or gNodeBs, 6G RAN nodes, or any other RAN node in future communication technologies. Examples of non-3GPP RAN nodes or non-3GPP access nodes are IoT access nodes or vehicular communication access nodes, or any other RAN or access node in other communication technologies.

[0088] Examples of ORAN network nodes include Open Radio Units (O-RUs), Open Distributed Units (O-DUs), Open Central Units (O-CUs) (including O-CU control planes (O-CU-CPs) or O-CU user planes (O-CU-UPs)), RAN intelligent controllers (near real-time or non-real-time) with managed software or software plug-ins, such as near real-time control applications (e.g., xApps) or non-real-time control applications (e.g., rApps), or any combination thereof (the adjective "open" indicates support for the ORAN specification). Network nodes can support the specification by, for example, supporting interfaces defined by the ORAN specification (such as A1, F1, W1, E1, E2, X2, Xn interfaces, Open Fronthaul User Plane Interfaces, or Open Fronthaul Management Plane Interfaces). Furthermore, ORAN access nodes can be logical nodes within physical nodes. Additionally, ORAN network nodes can be implemented in virtualized environments (further described below), where one or more network functions are virtualized. For example, a virtualized environment can include an O-Cloud computing platform orchestrated by a service management and orchestration framework via an O-2 interface defined by the O-RAN Consortium or similar technologies. Network node 910 facilitates direct or indirect connections of user equipment (UE), such as connecting UE 912a, 912b, 912c and 912d (one or more of which may generally be referred to as UE 912) to core network 906 via one or more wireless connections.

[0089] Examples of wireless communication via a wireless connection include sending and / or receiving wireless signals using electromagnetic waves, radio waves, infrared waves, and / or other types of signals suitable for transmitting information without the use of wires, cables, or other conductors. Furthermore, in various embodiments, the communication system 900 may include any number of wired or wireless networks, network nodes, UEs, and / or any other components or systems that can facilitate or participate in the communication of data and / or signals, whether via a wired or wireless connection. The communication system 900 may include any type of communication, telecommunications, data, cellular, radio network, and / or other similar system, and / or interface with any type of communication, telecommunications, data, cellular, radio network, and / or other similar system.

[0090] UE 912 can be any of a wide variety of communication devices, including wireless devices that are arranged, configured, and / or operable to communicate wirelessly with network node 910 and other communication devices. Similarly, network node 910 is arranged, capable, configured, and / or operable to communicate directly or indirectly with UE 912 and / or with other network nodes or devices in telecommunication network 902 to enable and / or provide network access, such as wireless network access, and / or implement other functions, such as management in telecommunication network 902.

[0091] In the depicted example, core network 906 connects network node 910 to one or more hosts, such as host 916. These connections can be direct or indirect via one or more intermediate networks or devices. In other examples, network nodes can be directly coupled to hosts. Core network 906 includes one or more core network nodes (e.g., core network node 908) constructed with hardware and software components. The characteristics of these components can be substantially similar to those described with respect to UE, network nodes, and / or hosts, such that the description generally applies to the corresponding components of core network node 908. Example core network nodes include one or more of the following functions: Mobile Switching Center (MSC), Mobility Management Entity (MME), Home Subscriber Server (HSS), Access and Mobility Management Function (AMF), Session Management Function (SMF), Authentication Server Function (AUSF), Subscription Identifier Dehiding Function (SIDF), Unified Data Management (UDM), Security Edge Protection Agent (SEPP), Network Open Function (NEF), and / or User Plane Function (UPF).

[0092] Host 916 may be under the ownership or control of a service provider other than the operator or provider of access network 904 and / or telecommunications network 902, and may be operated by or on behalf of the service provider. Host 916 may host various applications to provide one or more services. Examples of such applications include on-site and pre-recorded audio / video content, data collection services such as retrieving and compiling data on various environmental conditions detected by multiple UEs, analytics functions, social media, functions for controlling or otherwise interacting with remote devices, functions for alarm and monitoring centers, or any other such functions implemented by the server.

[0093] Overall, Figure 9 The communication system 900 enables connectivity between the UE, network nodes, and hosts. In this sense, the communication system can be configured to operate according to predefined rules or procedures, such as specific standards, including but not limited to: Global System for Mobile Communications (GSM); Universal Mobile Telecommunications System (UMTS); Long Term Evolution (LTE) and / or other suitable 2G, 3G, 4G, 5G standards, or any applicable next-generation standard (e.g., 6G); Wireless Local Area Network (WLAN) standards such as the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard (WiFi); and / or any other suitable wireless communication standards, such as Global Microwave Interconnection Access (WiMax), Bluetooth, Z-Wave, Near Field Communication (NFC) ZigBee, LiFi, and / or any Low Power Wide Area Network (LPWAN) standards such as LoRa and Sigfox.

[0094] In some examples, Telecom Network 902 is a cellular network implementing 3GPP standardized features. Therefore, Telecom Network 902 can support network slicing to provide different logical networks to different devices connected to it. For example, Telecom Network 902 can provide Ultra Reliable Low Latency Communication (URLLC) services to some UEs while providing Enhanced Mobile Broadband (eMBB) services to other UEs, and / or Massive Machine-Type Communication (mMTC) / Massively Interconnected IoT services to other UEs.

[0095] In some examples, UE 912 is configured to send and / or receive information without direct human interaction. For example, the UE may be designed to send information to access network 904 according to a predetermined schedule when triggered by internal or external events or in response to a request from access network 904. Furthermore, the UE may be configured to operate in single RAT, multi-RAT, or multi-standard modes. For example, the UE may operate using any one or a combination of Wi-Fi, NR (New Radio), and LTE, i.e., configured as multi-radio dual connectivity (MR-DC), such as E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) New Radio Dual Connectivity (EN-DC).

[0096] In this example, hub 914 communicates with access network 904 to facilitate indirect communication between one or more UEs (e.g., UEs 912c and / or 912d) and network nodes (e.g., network node 910b). In some examples, hub 914 may be a controller, router, content source and analytics, or any other communication device described herein with respect to a UE. For example, hub 914 may be a broadband router that enables a UE to access core network 906. As another example, hub 914 may be a controller that sends commands or instructions to one or more actuators in a UE. Commands or instructions may be received from the UE, network node 910, or via executable code, scripts, processes, or other instructions within hub 914. As another example, hub 914 may be a data collector that acts as a temporary storage for UE data, and in some embodiments, data analytics or other processing may be implemented. As another example, hub 914 may be a content source. For example, for a UE acting as a VR headset, display, speaker, or other media delivery device, hub 914 can retrieve VR assets, video, audio, or other media or data related to sensory information via network nodes, and then hub 914 provides this information directly to the UE, and / or provides this information to the UE after performing local processing and / or after adding additional local content. In another example, hub 914 acts as a proxy server or orchestrator for the UE, particularly when one or more UEs are low-power IoT devices.

[0097] Hub 914 may have a constant / persistent or intermittent connection to network node 910b. Hub 914 may also allow different communication schemes and / or scheduling between hub 914 and UEs (e.g., UEs 912c and / or 912d) and between hub 914 and core network 906. In other examples, hub 914 is connected to core network 906 and / or one or more UEs via a wired connection. Furthermore, hub 914 may be configured to connect to an M2M service provider via access network 904 and / or to another UE via a direct connection. In some scenarios, a UE may establish a wireless connection with network node 910 while still being connected via hub 914 through a wired or wireless connection. In some embodiments, hub 914 may be a dedicated hub, i.e., a hub whose primary function is to route communication from network node 910b to or from UE to network node 910b. In other embodiments, hub 914 may be a non-dedicated hub, i.e., a device capable of operating to route communication between the UE and network node 910b, but may also operate as a communication start and / or end point for a specific data channel.

[0098] Preferably, the communication system 900 includes electronic device 600. Preferably, the communication system 900 includes system 500. Preferably, the communication system 900 includes apparatus 700. Examples of electronic device 600 in the communication system 900 include, but are not limited to: 3GPP network nodes, non-3GPP network nodes, IoT network nodes, cloud-native network nodes, restricted network nodes, vehicular communication network nodes, or any other node of any of the above network types. In examples, the electronic device 600 specified herein may be an IoT device, a restricted device, a cloud-native device, a telecommunications device, or a network device, such as a 3GPP Radio Access Network (RAN) node, a core network node, an external third-party node, or any other non-3GPP access node. In embodiments, network 600 may include RAN or RAN. In embodiments, electronic device 600 may include RAN node or RAN node.

[0099] Figure 10A network node 910 according to an embodiment of the present invention is illustrated. Electronic device 600 or apparatus 700 may include network node 910. As used herein, a network node refers to a device capable of, configured, arranged, and / or operable to communicate directly or indirectly with a UE and / or other network nodes or devices in a telecommunications network. Examples of network nodes include, but are not limited to: access points (APs) (e.g., radio access points), base stations (BSs) (e.g., radio base stations, Node Bs, evolved Node Bs (eNBs), and NR Node Bs (gNBs)), O-RAN nodes, or components of O-RAN nodes (e.g., O-RUs, O-DUs, O-CUs).

[0100] Base stations can be classified based on the coverage they provide (or, in other words, their transmit power level), and thus, depending on the coverage provided, they can be called femtocells, picocells, microcells, or macrocells. A base station can be a relay node or a relay donor node controlling a relay. Network nodes can also include one or more (or all) components of a distributed radio base station, such as centralized digital units, distributed units (e.g., in O-RAN access nodes), and / or remote radio units (RRUs), sometimes referred to as remote radio headends (RRHs). Such remote radio units may be integrated with an antenna as an antenna-integrated radio, or they may not be integrated with an antenna. Components of a distributed radio base station can also be referred to as nodes in a distributed antenna system (DAS).

[0101] Other examples of network nodes include multi-transmission point (multi-TRP) 5G access nodes, multi-standard radio (MSR) equipment (such as MSR BS), network controllers (such as radio network controllers (RNC) or base station controllers (BSC)), base transceiver stations (BTS), transmission points, transmission nodes, multi-cell / multicast coordination entities (MCE), operation and maintenance (O&M) nodes, operation support system (OSS) nodes, self-organizing network (SON) nodes, location nodes (such as evolved serving mobile location centers (E-SMLC)), and / or minimized drive tests (MDT).

[0102] Network node 910 includes processing circuitry 1002, memory 1004, communication interface 1006, and power supply 1008. Network node 910 may consist of multiple physically separate components (e.g., NodeB components and RNC components, or BTS components and BSC components, etc.), each of which may have its own corresponding components. In some scenarios where network node 910 includes multiple separate components (e.g., BTS and BSC components), one or more separate components may be shared among several network nodes. For example, a single RNC can control multiple NodeBs. In such scenarios, each unique NodeB and RNC pair may be considered a single, separate network node in some instances. In some embodiments, network node 910 may be configured to support multiple radio access technologies (RAT). In such embodiments, some components may be replicated (e.g., separate memory 1004 for different RATs), and some components may be reused (e.g., the same antenna 1010 may be shared by different RATs). Network node 910 may also include multiple sets of various components shown for different wireless technologies (such as GSM, WCDMA, LTE, NR, WiFi, Zigbee, Z-wave, LoRaWAN, radio frequency identification (RFID), or Bluetooth wireless technologies) that can be integrated into network node 910. These wireless technologies may be integrated into the same or different chips or chipsets and other components within network node 910.

[0103] The processing circuitry 1002 may include a combination of one or more of the following: a microprocessor, a controller, a central processing unit, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or any other suitable computing device, resource, or hardware, software, and / or coding logic (operable to provide network node 910 functionality alone or in combination with other network node 910 components such as memory 1004).

[0104] In some embodiments, the processing circuitry 1002 includes a system-on-a-chip (SOC). In some embodiments, the processing circuitry 1002 includes one or more of a radio frequency (RF) transceiver circuitry 1012 and a baseband processing circuitry 1014. In some embodiments, the RF transceiver circuitry 1012 and the baseband processing circuitry 1014 may be on separate chips (or chipsets), boards, or units, such as radio units and digital units. In alternative embodiments, a portion or all of the RF transceiver circuitry 1012 and the baseband processing circuitry 1014 may be on the same chip or a set of chips, boards, or units.

[0105] Memory 1004 may include any form of volatile or non-volatile computer-readable memory, including but not limited to persistent memory, solid-state memory, remotely mounted memory, magnetic media, optical media, random access memory (RAM), read-only memory (ROM), mass storage media (e.g., hard disk), removable storage media (e.g., flash drive, optical disc (CD), or digital video disc (DVD)) and / or any other volatile, non-volatile, non-transient device-readable and / or computer-executable storage device (which stores information, data, and / or instructions that can be used by processing circuitry 1002). Memory 1004 may store any suitable instructions, data, or information, including computer programs, software, applications (including one or more of logic, rules, codes, tables, and / or other instructions that can be executed by processing circuitry 1002 and utilized by network node 910). Memory 1004 may be used to store any calculations performed by processing circuitry 1002 and / or any data received via communication interface 1006. In some embodiments, processing circuitry 1002 and memory 1004 are integrated.

[0106] Communication interface 1006 is used for wired or wireless communication of signaling and / or data between network nodes, access networks, and / or UEs. As shown, communication interface 1006 includes a port / terminal 1016 for sending and receiving data to and from a network, for example, via a wired connection. Communication interface 1006 also includes radio front-end circuitry 1018, which may be coupled to antenna 1010, or in some embodiments, may be part of antenna 1010. Radio front-end circuitry 1018 includes a filter 1020 and an amplifier 1022. Radio front-end circuitry 1018 may be connected to antenna 1010 and processing circuitry 1002. Radio front-end circuitry 1018 may be configured to modulate the signal transmitted between antenna 1010 and processing circuitry 1002. Radio front-end circuitry 1018 may receive digital data to be transmitted to other network nodes or UEs via a wireless connection. Radio front-end circuitry 1018 may use a combination of filter 1020 and / or amplifier 1022 to convert the digital data into a radio signal with appropriate channel and bandwidth parameters. The radio signal may then be transmitted via antenna 1010. Similarly, when receiving data, antenna 1010 can collect radio signals, which are then converted into digital data by radio front-end circuitry 1018. The digital data can then be passed to processing circuitry 1002. In other embodiments, the communication interface may include different components and / or different combinations of components.

[0107] In some alternative embodiments, network node 910 does not include a separate radio front-end circuitry 1018; instead, processing circuitry 1002 includes radio front-end circuitry and is connected to antenna 1010. Similarly, in some embodiments, all or some of the RF transceiver circuitry 1012 is part of communication interface 1006. In other embodiments, communication interface 1006 includes one or more ports or terminals 1016, radio front-end circuitry 1018, and RF transceiver circuitry 1012 as part of a radio unit (not shown), and communication interface 1006 communicates with baseband processing circuitry 1014, which is part of a digital unit (not shown).

[0108] Antenna 1010 may include one or more antennas or antenna arrays configured to transmit and / or receive wireless signals. Antenna 1010 may be coupled to radio front-end circuitry 1018 and may be any type of antenna capable of wirelessly transmitting and receiving data and / or signals. In some embodiments, antenna 1010 is separate from network node 910 and may be connected to network node 910 via an interface or port.

[0109] Antenna 1010, communication interface 1006, and / or processing circuitry 1002 can be configured to perform any receive operation and / or certain acquire operation as described herein by a network node. Any information, data, and / or signals can be received from the UE, another network node, and / or any other network device. Similarly, antenna 1010, communication interface 1006, and / or processing circuitry 1002 can be configured to perform any transmit operation as described herein by a network node. Any information, data, and / or signals can be transmitted to the UE, another network node, and / or any other network device.

[0110] Power supply 1008 provides power to the various components of network node 910 in a form suitable for the respective components (e.g., at the voltage and current levels required by each respective component). Power supply 1008 may also include or be coupled to power management circuitry to power the components of network node 910 for implementing the functions described herein. For example, network node 910 may be connected to an external power source (e.g., mains, power outlet) via an interface or input circuitry such as a cable, thereby supplying power to the power circuitry of power supply 1008. As another example, power supply 1008 may include a power source in the form of a battery or battery pack connected to or integrated into the power circuitry. The battery can provide backup power if the external power source fails. Power supply 1008 for network node 910 or device 700 may be a PSDU 200 or system 500.

[0111] Embodiments of network node 910 may include Figure 10Additional components beyond those shown may be used to provide certain aspects of the functionality of the network node, including any of the functions described herein and / or any functions required to support the topics described herein. For example, network node 910 may include a user interface device to allow information to be input into and output from network node 910. This can allow users to perform diagnostic, maintenance, repair, and other management functions on network node 910.

[0112] The aforementioned computer program code may also be provided, for example, in the form of a data carrier carrying computer program code for implementing the embodiments herein when loaded into hardware. One such carrier may be in the form of a CD-ROM. However, this is also possible with other data carriers, such as a memory stick. The computer program code may also be provided as plain program code on the PSDU 200 or System 500 and downloaded to the hardware during production and / or software updates.

[0113] Those skilled in the art will understand that the blocks in the circuit diagram of PSDU 200 can refer to a combination of analog and digital circuitry, and / or one or more controllers configured with software and / or firmware, for example, stored in one or more local storage units, to perform the steps described above when executed by PSDU 200 or System 500. One or more of PSDU 200 or System 500, and any other combination of analog and digital circuitry, can be included in a single application-specific integrated circuit (ASIC), or several controllers and various digital hardware can be distributed across several separate components, either individually packaged or assembled into a system-on-a-chip (SoC). One or more PSDU 200 or System 500 can be any or a combination of a central processing unit (CPU), graphics processing unit (GPU), programmable logic array (PAL), or any other similar type of circuit or logic arrangement. The teachings of the embodiments presented herein can improve the availability and reliability of electronic devices, thereby providing benefits such as higher throughput and / or lower latency.

Claims

1. A method implemented by a power distribution unit (PSDU) (200) for an electronic device (600), the PSDU including a separate power line PSL (210), wherein, Each PSL provides a different phase-controlled input power, and each PSL is connected to one or more power supply units (PSUs) (230) via one or more switches (220), the one or more switches connecting adjacent PSLs to at least one common PSU, such that adjacent PSLs can be connected to or disconnected from the same one or more PSUs, the method comprising: Determine (400) whether the PSL in the individual PSL has failed or become disconnected from the input power supply; If it is determined that the PSL has failed or become disconnected from the input power supply, then the one or more switches are configured (410) to individually connect at least one of the remaining PSLs in the PSL to at least one of the one or more PSUs, which was previously connected to the PSL that was determined to have failed or become disconnected from the input power supply.

2. The method according to claim 1, comprising: If it is determined that the PSL has failed or become disconnected from the input power supply, then disconnect (420) the physical connection with the PSL.

3. The method according to claim 1 or 2, wherein, The PSDU includes a controller (250), and the determination includes: the controller monitoring (432) the interface between each PSL in the PSL and the one or more PSUs.

4. The method according to claim 3, comprising: If it is determined that the PSL has failed or become disconnected from the input power supply, the configuration of the one or more switches (410) is affected.

5. The method according to claim 3 or 4, wherein, The monitoring (432) includes monitoring one or more of the following: Input voltage; Input current; and The state of the one or more switches.

6. The method according to one or more of claims 1-5, comprising: Control (434) the one or more switches and the one or more PSUs.

7. The method according to one or more of claims 1-6, comprising: Disconnect all PSUs from the power distribution entity PDE (240) (452), wherein the PDE supplies power from the PSUs to one or more devices, and / or during the period of configuring the one or more switches, put each of the PSUs into a sleep mode (454) and supply input power to the PDE via a battery or external power source (280), and after the one or more switches are configured or reconfigured, reconnect all the PSUs to the PDE (456) and turn on the PSUs.

8. The method according to claim 7, wherein, The time period mentioned is a predetermined value.

9. The method according to claim 8 when subordinate to claim 3, wherein, The time period is determined by the controller (250).

10. The method according to one or more of claims 1-9, wherein, The PSL determined to have failed or become disconnected from the input power supply is a first PSL (211) connected to at least two first PSUs, and the remaining PSLs include a second PSL (212) connected to at least two second PSUs and a third PSL (213) connected to at least two third PSUs, and the configuration (410) of the one or more switches includes: Disconnect (470; 420) the path from the first PSL to the first at least two PSUs; Connect the second PSL (472) to the first at least two PSUs; Disconnect at least one of the second at least two PSUs from the second PSL (474); and Connect (476) at least one of the second at least two PSUs to the third PSL.

11. The method according to one or more of claims 1-9, wherein, The PSL determined to have failed or become disconnected from the input power supply is a first PSL (212) connected to at least two first PSUs, and the remaining PSLs include a second PSL (211) connected to at least two second PSUs and a third PSL (213) connected to at least two third PSUs, and the configuration (410) of the one or more switches includes: Disconnect (480; 420) the path from the first PSL to the first at least two PSUs; Connect the second PSL (482) to at least the first PSU of the first at least two PSUs; Connect the third PSL (484) to at least the second PSU among the first at least two PSUs.

12. The method according to one or more of claims 1-11, comprising: Disconnect the PSU and one or more switches corresponding to the faulty PSL or disconnected PSL (430).

13. The method according to one or more of claims 1-12, comprising: Detect (440) whether a faulty or disconnected PSL has been recovered.

14. The method of claim 13, comprising: The PSU is reallocated (450) to the individual PSLs such that each PSU receives an equal share of input from the PSL.

15. The method according to one or more of claims 1-14, comprising: Determine (436) the number of PSUs configured for each PSL; And / or determine (438) the power of the PSU for each PSL to calculate the new PSU location and the new configuration settings of the switch associated with the PSL.

16. A power distribution unit (PSDU) (200) for an electronic device (600), the PSDU including a separate power line PSL (210), wherein, Each PSL provides a different phase-controlled input power, and each PSL is connected to one or more power supply units (PSUs) (230) and one or more switches (220). The one or more switches connect adjacent PSLs to at least one common PSU, allowing adjacent PSLs to be connected to or disconnected from the same one or more PSUs. The PSDUs are configured such that: If each of the individual PSLs is connected to and receives input power, then each of the individual PSLs is individually connected to one or more individual PSUs such that each PSU receives an equal share of power from the PSL; as well as If one of the individual PSLs is disconnected or unable to receive input power, the one or more switches are configured to connect the PSU such that each of the one or more PSUs receives an equal share of input from the remaining PSLs.

17. The PSDU of claim 16, comprising: Circuit breaker (260) is configured to isolate a disconnected PSL or a PSL that cannot receive input power.

18. The PSDU according to claim 16 or 17, comprising: A controller (250) is configured to monitor the power supplied by each of the PSLs and / or control the one or more switches in response to detecting a fault or disconnection of at least one of the PSLs.

19. The PSDU according to claim 18, wherein, The controller is configured to monitor one or more of the following: Input voltage; Input current; and The state of the one or more switches.

20. The PSDU of claim 18 or 19, configured to: monitor the interface between each PSL in the PSL and the one or more PSUs.

21. The PSDU according to one or more of claims 18-20, configured to control the operation of the one or more switches.

22. The PSDU according to one or more of claims 16-21, configured to: disconnect all PSUs from the power distribution entity PDE (240), and / or, during the period when the one or more switches are configured or reconfigured, set all PSUs to sleep mode and supply power to the PDE via a battery (280) or an external power source, and, after the one or more switches are configured or reconfigured, reconnect all PSUs to the PDE and turn on the PSUs.

23. The PSDU according to claim 22, wherein, The time period mentioned is a predetermined value.

24. The PSDU according to claim 22, wherein, The time period is determined by the controller of claim 16.

25. The PSDU according to one or more of claims 16-24, configured to disconnect all said PSUs corresponding to a PSL that is disconnected or unable to receive input power.

26. The PSDU according to one or more of claims 16-25, configured to: detect whether a disconnected PSL or a PSL that cannot receive input power has been restored.

27. The PSDU of claim 26, wherein if a disconnected PSL or a PSL that could not receive input power has been restored, the PSDU is configured to: redistribute the PSUs to the PSLs such that each of the PSUs receives an equal share of input from the PSLs.

28. The PSDU according to one or more of claims 16-27, configured to: determine whether the PSL in the individual PSL has failed or become disconnected from the input power supply.

29. The PDSU according to one or more of claims 16-28, which is included in the radio access network RAN ​​node (910).

30. A power distribution unit (PSDU) (200) for an electronic device (600), the PSDU including a separate power line PSL (210), wherein, Each PSL provides a different phase-controlled input power, and each PSL is connected to one or more power supply units (PSUs) (230) and one or more switches (220), the one or more switches connecting adjacent PSLs to at least one common PSU, such that adjacent PSLs can be connected to or disconnected from the same one or more PSUs, and the PSDU includes processing circuitry (710), the processing circuitry including a processor (740) and a memory (730), the memory containing instructions that, when executed by the processor, enable the PSDU to operate to implement the method according to one or more of claims 1-15.

31. A system (500) for supplying power to an electronic device (600), the system comprising one or more power distribution units (PSDUs) and a cloud orchestrator (550), each PSDU comprising a separate power line (PSL), wherein, Each PSL provides a different phase-controlled input power, and each PSL is connected to one or more power supply units (PSUs) and one or more switches. These switches connect adjacent PSLs to at least one common PSU, allowing adjacent PSLs to be connected to or disconnected from the same one or more PSUs. The system is configured such that: If each PSL in the individual PSL of each PSDU is connected to and receives input power, then each PSL in the individual PSL is individually connected to one or more individual PSUs such that each PSU receives an equal share of power from the PSL; as well as If one of the individual PSLs in each PSDU is disconnected or unable to receive input power, the one or more switches are configured to connect the PSU such that each of the one or more PSUs receives an equal share of input from the remaining PSLs.

32. The system of claim 31, configured to implement the method of one or more of claims 1-15.

33. A system for supplying power to an electronic device, the system comprising one or more power distribution units (PSDUs) and a cloud orchestrator (550), each PSDU including a separate power line (PSL), wherein, Each PSL provides a different phase-controlled input power, and each PSL is connected to one or more power supply units (PSUs) and one or more switches, the one or more switches connecting adjacent PSLs to at least one common PSU, such that adjacent PSLs can be connected to or disconnected from the same one or more PSUs, and the PSDU includes processing circuitry (710), the processing circuitry including a processor (740) and a memory (730), the memory containing instructions that, when executed by the processor, enable the system to operate to implement the method according to one or more of claims 1-15.

34. A computer program comprising instructions which, when executed by at least one processor (740) of a power distribution unit (PSDU) (200) or a system (500), cause the PSDU or the system to perform the method according to one or more of claims 1-15.

35. A computer program product (810) comprising a non-transient computer-readable medium (830) on which the computer program (820) according to claim 34 is stored.

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