JP6726815B2 - Device and computer program for self-organizing network - Google Patents

Description

Embodiments of the present invention generally relate to the technical field of communication, and more particularly to controlling a self-optimizing process by a self-organizing network (SON).

The “Background” section of this specification is provided for the purpose of generally presenting the context of the disclosure. The contents made by the inventors of the present application are not the prior art at the time of filing, even if they are described in the background art section, and they are not admitted explicitly or implicitly as the prior art to the present application. Unless otherwise specified, the contents described in the section of background art are not necessarily the prior art to the claims according to the disclosure of the present application, and even if included in the background art, the prior art I do not admit.

For example, a wireless network access node (WNAN) such as a base station formed to operate with respect to Non-Patent Document 1, or an evolved node B formed to operate with respect to Non-Patent Document 2, for example ( evolved NodeB (eNB) may collaborate with other WNANs to form a self-organizing network (SON).

IEEE802.16 standard specification, IEEE Std.802.16−2009, published May 29, 2009 (WiMAX) 3GPP Long Term Evolution (LTE) Release 10 (March 2011)

WNANs may be configured to perform self-assembling processes. This self-organizing process can address issues such as coverage holes, poor quality coverage, uplink and downlink channel coverage mismatches, and the like. The WNAN may obtain data (eg, user equipment measurements, performance measurements, trace data, etc.) from various sources such as wireless devices (eg, user equipment in LTE). These data are analyzed and configuration parameters for one or more WNANs are adjusted to improve network performance, coverage and/or capacity, and/or improve the above problems.

Self-optimization operation is, for example, load balancing processing, handover performance optimization processing, coverage and capacity optimization (CCO) processing, inter-cell interference mitigation processing, radio/transmission parameters. The optimization processing, the energy-saving management (ESM) processing, and the like, are not limited to these. For example, ESM processing shuts down some WNANs serving cells in the SON during off-peak traffic time intervals (e.g., midnight) to save energy, while other WNANs in a multi-cell network compensate for the shut down WNANs. To do so. The self-optimizing function may be performed independently by the WNAN or other network device. Therefore, if you try to adjust the WNAN configuration parameters in a way that two or more self-optimizing processes conflict, you will have a conflict problem.

The problem in an embodiment of one aspect is at least to mitigate the problem of trying to adjust the configuration parameters of a node in a way that two or more self-optimizing processes compete.

A system according to an embodiment of an aspect is
A processor,
A memory operably coupled to the processor,
A control module used by the processor, wherein a plurality of self-optimization processes including an energy-saving management process and a capacity and coverage optimization process are set in a radio network access node resulting from the self-optimization process. And a control module that controls so as to reduce conflicts between parameter changes.

FIG. 6 is a schematic diagram illustrating an example of a self-organizing network (SON) including a wireless network access node (WNAN) for operation during peak traffic in various embodiments. 2 is a schematic diagram illustrating an example of SON including the WNAN of FIG. 1 for operation during off-peak traffic in various embodiments. FIG. 3 is a schematic diagram illustrating an example method performed by WNAN in various embodiments. FIG. 6 is a schematic diagram illustrating a computing device formed to use the techniques disclosed by various embodiments.

Embodiments will be fully understood by the following detailed description in conjunction with the accompanying drawings. For convenience of description, like reference numbers will indicate like structural elements. The embodiments are merely examples and are not limited by the accompanying drawings.

In the following detailed description, reference will be made to the accompanying drawings, which form a part of this application, in which like reference numerals indicate like parts, and the accompanying drawings merely illustrate one embodiment. It should be understood that other embodiments may be used and structural or logical changes may be made. That is, the following detailed description should not be construed in a limiting sense.

Various acts are described as multiple discrete processes or procedures in a manner that is believed to be very helpful in understanding the claimed subject matter. However, it should be understood that the order of description does not necessarily correspond to the order required for their processing. In particular, the operations may be performed in the order described. The described processes may be performed in a different order than the described embodiments. Various additional processes may be performed and/or some of the processes described may be omitted in other embodiments.

For the purposes of this disclosure, the phrase "A and/or B" means (A), (B) or (A and B). Regarding the disclosure content of the present application, ``A, B and/or C'' means (A), (B), (C), (A and B), (A and C), (B and C), or ( Means A, B and C).

Although this description uses terms such as “one embodiment” or “an embodiment,” they refer to one or more of the same or different forms. Further, terms such as “comprising”, “including”, “having”, etc. used in describing the embodiments relating to the disclosure of the present application may be considered as synonyms unless there is a risk of confusion.

As used herein, the term "module" refers to an application specific integrated circuit (ASIC), electronic circuit, processor (shared, general purpose or group of processors) that executes one or more software or firmware programs, and And/or memory (shared, general purpose or group of memories), combinatorial logic circuits, and/or other suitable components that provide a given function, etc. May indicate, or contain, them. As used herein, "computer-implemented method" refers to one or more processors, computer systems having one or more processors, mobile devices (smartphones that may include one or more processors. , Tablet computers, laptop computers, set-top boxes, game consoles, etc.). As used herein, the term "self-optimization" includes successful or unsuccessful attempts to improve performance, including relative optimization and absolute optimization. It has the meaning including both

FIG. 1 shows an example of a self-organizing network (SON) 10 of wireless network access nodes 12 showing a situation in which it operates during peak traffic. Each of the WNANs 12 of the SON 10 provides a cell 14 in which one or more wireless devices (not shown), such as mobile subscriber equipment (MS), mobile stations, user equipment (UE), etc., may be wireless linked. The cells 14 provided by the WNAN 12 together form a multi-cell network. In various embodiments, the WNAN may be a base station (BS) configured for WiMAX operation. In various embodiments, the WNAN 12 may be an Evolved Node B (eNB) configured to operate an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) for LTE, or other types. May be WNAN. In FIG. 1, the traffic is peak or near peak, so the WNAN 12 shown in FIG. 1 operates in a non-energy-saving state (NO ES) and a large number of wireless devices are connected. It provides a cell that does.

However, during non-peak hours, only a few wireless devices may be connected to the multi-cell network 14. Thus, as shown in FIG. 2, the WNAN 12 may perform various energy-saving management (ESM) processes, eg, to save power, either in whole or in a collective fashion. For example, the ESM processing performed by the WNAN 12 located around the region may include transitioning to an energy saving state (shown as “ES ON” in FIG. 2). In various embodiments, the WNAN 12 in the energy saving state may no longer provide the cell 14, may be powered down, or may be in other types of power saving states.

The central WNAN 12 performs another ESM process that adjusts its configuration parameters to provide coverage for neighboring cells 14 to address or respond to the peripheral WNAN 12 being powered down. Good. For example, the central WNAN 12 may operate in an energy saving compensation state (shown as "ES COMPENSATE"). In this situation, the central WNAN 12 would have provided a single cell 16 that would normally use one of the neighboring cells 14 if peak traffic was encountered. Wireless device (the wireless device will use any of a number of adjacent cells 14 during peak hours, but will use a single cell 16 instead of adjacent cells 14 during off-peak hours. ).

Other self-optimization processes that should be performed for various other reasons are methods that cause WNAN configuration parameters, such as WNAN12 in the middle of Figure 2, to conflict with each other when the configuration parameters are tuned by the ESM process. May be adjusted. For example, the coverage and capacity optimization (CCO) process may adjust the configuration parameters in some way to provide good coverage for wireless devices in a particular area or region. The ESM process may try to adjust the same parameter in another way, for example by causing it to shut down. Adjustment of these setting parameters will be in conflict. Conflicts may be described as conflicts, contradictions, discrepancies, conflicts, etc.

Therefore, in various embodiments, the WNAN controls multiple self-optimization processes to reduce competition between changes in WNAN configuration parameters due to self-optimization processes. These self-optimization processes may include, but are not limited to, load balancing, handover performance optimization, CCO, inter-cell interference mitigation, radio/transmission parameter optimization, ESM, etc. The WNAN “configuration parameter” may include, but is not limited to, downlink transmission (DL-TX) power, antenna tilt angle, antenna azimuth, and the like.

FIG. 3 shows an example method 300 in which a WNAN, such as WNAN 12 shown in FIG. 1 or FIG. 2, operates to control multiple self-optimization processes to avoid contention. In this example, two self-optimizing processes, CCO302 and ESM304, are described. However, this is not meant to be limiting, and more than two self-optimizing processes may be controlled as appropriate to avoid conflicts in changing setting parameters. In addition, these self-optimizing processes may include other types of self-optimizing processes; CCO and ESM are shown in Figure 3 by way of example only.

For various embodiments, at block 306, various events trigger or trigger the CCO. For example, a WNAN12, such as an eNB or base station, analyzes data received from various sources (e.g., wireless devices) and increases capacity and coverage if one or more configuration parameters of WNAN12 are changing. Determine whether to improve.

At step 308, the WNAN 12 executes an atomic test and set command on the binary semaphore 310 (e.g., stored in the WNAN 12's memory) to determine whether the semaphore is locked. To judge. For example, a binary semaphore may be set in a locked state, so the preceding value (locked or unlocked) is returned, as indicated by the "semaphore value" arrow in the figure. At block 312, this preceding value is tested. In various embodiments, if the preceding value of the binary semaphore 310 is locked, it means that another self-optimizing process, such as ESM304, (a) locked the semaphore, (b) recently set. Indicates that it has just been done, (c) is currently being set, or (d) is about to set one or more configuration parameters of the WNAN 12 soon. In such a case, method 300 refrains from waiting (waiting) for CCO processing until binary semaphore 310 becomes unlocked. For example, until the check setup command returns a predecessor value indicating that the semaphore is unlocked (for example, by another process), as indicated by the "wait for process" arrow in Figure 3, The method 300 returns to retesting and resetting (or retesting and setting) the binary semaphore 310.

If the preceding state of the binary semaphore 310 is confirmed at block 312 to be the unlocked state, the method 300 proceeds to block 314 where the WNAN 12 is now referred to as the energy saving compensation state (“ES COMPENSATE” state). ) Is determined. If the WNAN12 is currently in the "ES COMPENSATE" state, the WNAN12 does not need to start CCO because it is already expanding its coverage to compensate for other shut down cells. is there. In such cases, the CCO may not be started and the method 300 returns to start (eg, returns to waiting for a CCO or ESM trigger). However, if WNAN 12 is not currently in the "ES COMPENSATE" state, then at block 316 WNAN 12 initiates a CCO and at block 317 unlocks the semaphore.

The method 300 also includes another task that begins at block 320 when triggered by an ESM process. ESM processing can be triggered by various events. For example, ESM processing is used when one or more WNANs 12 transition from peak traffic (e.g., as shown in Figure 1) to non-peak traffic (e.g., as shown in Figure 2). May be triggered by. For example, they may be given a trigger for ESM processing to transition WNANs 12 around the area to an energy saving state. Similarly, a trigger for ESM processing may be provided to the central WNAN 12 so that the central WNAN 12 can provide the coverage of the neighboring cells 14 to cope with the power saving state of the WNAN 12 around the area.

At block 322, the binary semaphore 310 is examined and set, eg, by WNAN. Similar to block 308, the binary semaphore 310 may have been set to a locked state, so the previous value (eg, locked or unlocked state) is returned. At block 324, if the preceding value indicated a lock condition, the method 300 begins the ESM process until the binary semaphore is unlocked (as indicated by the "wait for process" arrow). Refrain from

If the preceding value of the binary semaphore 310 indicated an unlock condition, the method 300 proceeds to block 326 and ESM processing begins. For example, in FIG. 3, the ESM process at block 326 may put the WNAN in an energy saving or "ES COMPENSATE" state.

At block 328, it is determined whether the WNAN is in the "ES COMPENSATE" state. If yes, the method 300 returns to start (ie, returns to block 304). However, if it is determined that the WNAN is in the energy saving state, then at block 330, the binary semaphore 310 is set to the unlocked state and then the method 300 ends (i.e., the WNAN is powered down). ..

FIG. 4 illustrates a computer device 400 according to various embodiments. The computer device 400 contains a printed circuit board (PCB) 402. The PCB 402 includes a number of components including, but not limited to, a processor 404 and at least one communication chip 406. Processor 404 is physically and electrically coupled to PCB 402. In various embodiments, at least one communication chip 406 may be physically and electrically coupled to PCB 402. In another embodiment, the communication chip 406 may be part of the processor 404.

Depending on the application, computing device 400 may include other components that may or may not be physically and electrically coupled to PCB 402. Other elements include, for example, volatile memory (e.g., dynamic random access memory 408 (referred to as "DRAM")), non-volatile memory (e.g., read-only memory 410 (referred to as "ROM")), One or more semaphores 411 (which may reside in various memories in one embodiment), flash memory 412, graphics processor 414, digital signal processor (not shown), encryption processor (not shown). ), chipset 416, antenna 418, display (not shown), touch screen display 420, touch screen controller 422, battery 424, audio codec (not shown), video codec (not shown), power amplifier 426, global Positioning system (GPS) receiver 428, compass 430, accelerometer (not shown), gyroscope (not shown), speaker 432, camera 434, mass storage device (for example, hard disk drive, solid state drive, compact disk) (CD), digital versatile disc (DVD) (not shown), etc., but is not limited to these.

In various embodiments, volatile memory (eg, DRAM 408), non-volatile memory (eg, ROM 410), flash memory 412 and mass storage devices are responsive to execution by processor 404 to computing device 400 for method 300. It may include program instructions for executing all or part of the processing.

The communication chip 406 enables wired communication and/or wireless communication for transmitting/receiving data by the computer device 400. The term “wireless” and its derivatives refer to circuits and the like (eg, circuits, devices, systems, methods, techniques, communication channels, etc.) that communicate data through the use of modulated electromagnetic radiation over non-solid media. Etc.). Although these terms do not include wired in one embodiment, they do not mean that the associated device does not include any wired portion (as long as the wired portion includes the wired portion, May exist). Communication chip 406 may implement any of a variety of wireless standards or protocols, such as Wi-Fi (IEEE802.11 family), WiMAX (IEEE802.16 family), IEEE802.20. , Long Term Evolution (LTE), Ev-DO, HDPA+, HSDPA+, HSUPA+, EDGE, GSM(R), GPRS, CDMA, TDMA, DECT, Bluetooth(R), as well as standards derived from them, as well as 3G , 4G, 5G, and any other wireless protocols planned for higher, and the like. Computing device 400 may include multiple communication chips 406. For example, the first communication chip 406 is set for near field communication such as Wi-Fi and Bluetooth, and the second communication chip 406 is GPS, EDGE, GPRS, CDMA, WiMAX, LTE, Ev-DO, etc. May be set for long-distance wireless communication.

Processor 404 of computing device 400 may include an integrated circuit die packaged within processor 404. In accordance with various embodiments, the integrated circuit die of processor 404 includes one or more device configurations such as transistors or metal lines, etc. to facilitate control of the self-optimizing process utilizing one or more methods described above. Is formed. The term "processor" refers to any device or part of a device that processes electronic data in a register and/or memory and converts that electronic data into another electronic data stored in the register and/or memory. Show.

Communication chip 406 may include an integrated circuit die packaged in communication chip 406. For various embodiments, the integrated circuit die of the communication chip 406 includes one or more device configurations, such as transistors or metal lines, etc., and utilizes one or more methods described above to control the self-optimization process. It is shaped to encourage.

For various embodiments, computing device 400 may include a laptop, netbook, notebook, ultrabook, smartphone, tablet, personal digital assistant (PDA), ultramobile PC, mobile phone, desktop computer, server, printer, scanner, It may be a monitor, a set top box, an entertainment device controller, a digital camera, a portable music player, a digital video recorder, or the like. In another embodiment, computing device 400 may be any other electronic device that processes data.

Various embodiments are described herein. In various embodiments, a plurality of self-optimizing processes, including energy-saving management processes and capacity and coverage optimization processes, are provided between changes in configuration parameters of a wireless network access node due to the self-optimizing processes. Controlled to reduce contention.

In various embodiments, the energy-saving management process adjusts off-peak configuration parameters to provide coverage for adjacent cells to accommodate power cut-off of wireless network access nodes in the adjacent cells. For various embodiments, the energy savings management process causes the wireless network access node to enter an energy savings or energy savings compensation state. With respect to various embodiments, capacity and coverage optimization processing and other setting parameter changes due to self-optimization processing include changing downlink transmission power, changing antenna tilt angle, and antenna azimuth angle (horizontal direction). Change in directivity and/or vertical directivity) may be included.

For various embodiments, multiple self-optimization processes may be controlled utilizing semaphores. For various embodiments, when a self-optimization process trigger is detected, it is determined whether the semaphore is locked or unlocked before the self-optimization process is initiated. .. For various embodiments, an atomic check set command may be executed to determine if the semaphore is in a locked or unlocked state. For various embodiments, the self-optimization algorithm is not started once the semaphore is determined to be locked.

Computer readable media (including non-transitory computer readable media), methods, systems and devices for carrying out the techniques described above that are computer readable media are disclosed herein. It is an example of an embodiment.

Although certain embodiments have been illustrated and described above from the perspective of facilitating the description, a wide range of alternative and/or equivalent embodiments or examples that achieve the same purpose are shown and described. May be applied to. This application is intended to cover any adaptations or variations of the described embodiments. Therefore, it is manifestly intended that the subject matter of the embodiments disclosed herein be defined solely by the claims and their equivalents.

<Related application>
This application enjoys the priority benefit of a U.S. provisional patent application filed on November 4, 2011, entitled "Advanced Wireless Communication System and Techniques," the entire contents of which are incorporated herein. To be

Hereinafter, the modes taught by the present application will be exemplified as supplementary notes.
(Appendix 1)
A processor,
A memory operably coupled to the processor,
A control module used by the processor, wherein a plurality of self-optimization processes including an energy-saving management process and a capacity and coverage optimization process are set in a radio network access node resulting from the self-optimization process. And a control module that controls so as to reduce conflicts between parameter changes.
(Appendix 2)
The system of claim 1 having one or more antennas.
(Appendix 3)
The system of claim 2 wherein the energy saving management process adjusts off-peak configuration parameters to provide coverage for adjacent cells in response to powering down wireless network access nodes in adjacent cells.
(Appendix 4)
The system of claim 2 wherein the energy saving management process puts the radio access network node into an energy saving state or an energy saving compensation state.
(Appendix 5)
The system according to Appendix 1, wherein the change of the setting parameter caused by the capacity and coverage optimization process includes a change of downlink transmission power, a change of antenna tilt angle, or a change of antenna azimuth angle.
(Appendix 6)
6. The system according to any one of appendices 1 to 5, wherein the memory includes a semaphore, and the control module controls the plurality of self-optimization processes by using the semaphore.
(Appendix 7)
The control module detects an event that triggers a self-optimization process, and confirms whether the semaphore is in a locked state or an unlocked state before starting the self-optimization process. The system described in.
(Appendix 8)
The system of claim 7, wherein the control module is configured to execute an atomic test and set command to determine if the semaphore is locked or unlocked.
(Appendix 9)
The system of claim 7, wherein the control module is configured to refrain from initiating the self-optimizing algorithm if the semaphore is determined to be locked.
(Appendix 10)
The system according to any one of appendices 1 to 5, wherein the radio network access node is an evolved node B formed to operate in an Evolved Universal Terrestrial Radio Access Network (E-UTRAN).
(Appendix 11)
6. The system according to any one of appendices 1 to 5, wherein the wireless network access node is a base station configured to operate in a network that provides a WiMAX service.
(Appendix 12)
A processing method executed by a computer,
Confirming that the radio network access node has been triggered by the capacity and coverage optimization process;
The wireless network access node confirms whether the wireless network access node is performing an energy saving management process,
The wireless network access node starts the capacity and coverage optimization process when it is confirmed that the wireless network access node is not performing the energy saving management process.
(Appendix 13)
The step of the wireless network access node confirming whether the wireless network access node is performing an energy saving management process,
The wireless network access node inspecting the semaphore to see if the semaphore is locked;
The wireless network access node sets the semaphore in the locked state when it is confirmed that the semaphore is not in the locked state.
(Appendix 14)
Confirming that the wireless network access node has been triggered by the energy saving management process;
The wireless network access node confirms whether or not the capacity and coverage optimization processing is being performed by the wireless network access node,
The wireless network access node starts the energy saving management process when it is confirmed that the wireless network access node is not performing the capacity and coverage optimization process. Processing method.
(Appendix 15)
The step of the wireless network access node confirming whether or not the wireless network access node is performing the capacity and coverage optimization process,
The wireless network access node inspecting the semaphore to see if the semaphore is locked;
The wireless network access node sets the semaphore in the locked state when it is confirmed that the semaphore is not in the locked state.
(Appendix 16)
13. The processing method according to appendix 12, wherein the capacity and coverage optimization processing includes changing a setting parameter of the wireless network access node.
(Appendix 17)
17. The processing method according to appendix 16, wherein the change of the setting parameter includes a change of downlink transmission power, a change of an antenna tilt angle, or a change of an antenna azimuth angle.
(Appendix 18)
13. The processing method according to appendix 12, wherein the energy saving management processing includes changing a setting parameter of the wireless network access node.
(Appendix 19)
19. The processing method according to appendix 18, wherein the change of the setting parameter includes a change of downlink transmission power, a change of antenna tilt angle, or a change of antenna azimuth angle.
(Appendix 20)
13. The processing method according to appendix 12, which refrains from starting the capacity and coverage optimization processing when it is confirmed that the semaphore is in a locked state.
(Appendix 21)
The processing method according to attachment 13, wherein when the semaphore is confirmed to be in a locked state, refraining from starting the energy saving management processing.
(Appendix 22)
22. At least one storage medium readable by a computer having a plurality of instructions, wherein the instructions are executed by the computer, and the processing according to any one of appendices 12 to 21. A storage medium causing a computer device to perform a method.
(Appendix 23)
An apparatus configured to perform the processing method according to any one of appendices 12 to 21.
(Appendix 24)
At least one storage medium readable by a computing device having a plurality of instructions, said instructions being executed by an evolved Node B (eNB),
A storage medium that enables the eNB to control a plurality of self-optimization processes including an energy-saving management process so as to reduce competition between changes in the setting parameters of the eNB due to the self-optimization process.
(Appendix 25)
The plurality of self-optimization processes include one or more of load balancing, handover performance optimization, capacity and coverage optimization, inter-cell interference mitigation, and wireless transmission parameter optimization. The storage medium according to attachment 24.
(Appendix 26)
25. The storage medium according to appendix 24, wherein the energy saving management process adjusts a setting parameter during off-peak time so as to provide coverage of an adjacent cell in response to power-off of an eNB of the adjacent cell.
(Appendix 27)
27. The storage medium according to appendix 26, wherein the change of the setting parameter caused by the self-optimization process includes a change of downlink transmission power, a change of antenna tilt angle, or a change of antenna azimuth angle.
(Appendix 28)
28. The storage medium according to any one of appendices 24 to 27, wherein the plurality of self-optimization processes are controlled by using a semaphore.

Claims (16)

An apparatus used as an Evolved Node B (eNB), comprising one or more processors operably coupled to one or more computer-readable media, said one or more processors comprising a plurality of processors. of executing instructions to perform the self-organizing network (SON) function, individual SON functionality of the plurality of SON function performs SON adjustment function among the plurality of SON functions, before Symbol one or more processors in order to perform the SON adjustment function executes instructions for using the energy saving management of a plurality of SON function (ESM) function, the one or more processors Is :
Identifying the triggering of the eNB to enter the energy saving (ES) compensation state in order to compensate for cells provided by other eNBs that should enter the energy saving (ES) state ;
Determining whether one or more setting parameters are changed for the eNB by a SON function other than the ESM function among the plurality of SON functions; and the one or more setting parameters are other than the ESM function. of if not changed by SON function, to instruct the eNB to initiate the ES compensation condition;
The device that does. Wherein the one or more processors are:
Based on the determination that before Symbol one or more configuration parameters is not Tei is currently changing, executes instructions instructing the not to start the ES compensation state eNB, according to claim 1. To indicate to start the ES compensating state to the eNB, wherein the one or more processors are:
Executing instructions for instructing the eNB to adjust at least one setting parameter of the previous SL one or more configuration parameters, apparatus according to claim 1. The eNB so as to compensate for the other eNB during off-peak hours in order to provide coverage to address power shutdown other eNB, triggered by the ES M function device of claim 1. A communication circuit communicatively coupled to the one or more processors, according to claim 1, wherein the other eNB further includes a communication circuit that obtains an instruction entering the ES state. The one or more processors, before starting the execution of the ESM function, the eNB is currently determines whether the ES compensation state, The apparatus according to claim 1. The SON functions other than ESM function is capacity and coverage optimization (CCO) function, according to claim 1. 8. The apparatus according to any one of claims 1 to 7 , wherein the one or more configuration parameters include one or more of downlink transmit power, antenna tilt angle or antenna azimuth angle. A computer program having a group of instructions, wherein execution of the group of instructions by one or more processors causes an evolved node B (eNB) to perform an action, the actions being:
Performing a plurality of self-organizing network (SON) functions, wherein each SON function of the plurality of SON functions performs a SON coordination function between the plurality of SON functions, and The processor executes instructions for using an energy saving management (ESM) function of the plurality of SON functions ;
To compensate for the cell provided by the other eNB should enter the energy saving (ES) state, and this identifies the trigger eNB entering the energy saving (ES) compensation state;
Wherein the S ON function other than the ESM function among the plurality of SON functions, one or more configuration parameters determine this and whether modified Luke not with respect to the eNB; by and SON functions other than the ESM function, before If the serial one or more configuration parameters are not changed, it instructs the eNB to initiate the ES compensation state;
Computer programs, including. The execution of the above instructions is:
Based on the determination that the one or more configuration parameters is currently changing, not started before Symbol eNB the ES compensation state, the computer program of claim 9. The execution of the above instructions is:
Adjusting the at least one setting parameter of the previous SL one or more configuration parameters to be executed by the eNB, the computer program of claim 9. Execution of the ESM function causes the eNB to enter an energy saving (ES) compensation state and compensation for other eNBs entering the ES state, and execution of the instruction causes the eNB to:
Determining whether or not the eNB is currently in the ES compensation state before starting execution of the ESM function; and, if the eNB is currently determined to be in the ES compensation state, Refraining from instructing the eNB to initiate the ES compensation state;
The computer program of claim 9 , which causes Execution of the instructions is performed by the eNB to determine whether the one or more configuration parameters are changed;
Inspecting the semaphore to determine if the semaphore is in a locked state; and setting the semaphore to the locked state if the semaphore is determined not to be in the locked state;
The computer program of claim 9 , which causes The computer program product of claim 9 , wherein the one or more configuration parameters include one or more of downlink transmit power, antenna tilt angle or antenna azimuth. The SON functions other than ESM function is capacity and coverage optimization (CCO) function, a computer program according to any one of claims 9 to 14. A storage medium for storing the computer program according to any one of claims 9 to 15 .

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