CN111405644B - Intelligent energy-saving network and energy-saving method for 5G communication network element under central control - Google Patents
Intelligent energy-saving network and energy-saving method for 5G communication network element under central control Download PDFInfo
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- CN111405644B CN111405644B CN202010154309.1A CN202010154309A CN111405644B CN 111405644 B CN111405644 B CN 111405644B CN 202010154309 A CN202010154309 A CN 202010154309A CN 111405644 B CN111405644 B CN 111405644B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
- H04W76/34—Selective release of ongoing connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a 5G communication network element intelligent energy-saving network controlled by a center and an energy-saving method, wherein the network comprises an energy-saving center, at least one intelligent energy-saving group and at least one energy-saving sub-center; the energy-saving center detects the busy degree of the energy-saving center, and when the busy degree is smaller than a set reference, the energy-saving mode is started to inform a non-duty intelligent energy-saving network element in the intelligent energy-saving group of going off-line; after receiving the instruction of the energy-saving center, the non-on-duty intelligent energy-saving network element detects the load of the non-on-duty intelligent energy-saving network element, and formally submits the off-line to the energy-saving center or the energy-saving sub-center when the load is smaller than a set value; and after the awakening rule is met, the energy-saving center closes the energy-saving mode, and the energy-saving center or the energy-saving sub-center awakens the offline non-on-duty intelligent energy-saving network element. According to the invention, the energy-saving center control is combined with the busy degree of each network element to make judgment, and each intelligent energy-saving group can flexibly set the on-duty network element by considering the service condition of the group, so that the normal operation of the service is ensured. Therefore, 5G distributed network element deployment is achieved to form the energy-saving large network.
Description
Technical Field
The invention relates to the technical field of energy conservation in a mobile communication network, in particular to a centrally-controlled intelligent energy-saving network for a 5G communication network element and an energy-saving method.
Background
The communication field is rapidly developed at present, the wireless 5G era is coming soon, 5G communication is virtualized, network elements are diversified, and the energy consumption of a communication system is high, so that the network energy saving becomes more important. The existing energy saving technology only considers the base station or considers the base station according to the computer room. There is no involvement of the network elements of the virtualized deployment. The prior art relies primarily on intelligent agent modules to collect load data, rather than the network elements themselves.
The invention discloses a Chinese patent application with the publication number of CN106879057A, which is named as a 5G wireless network intelligent energy-saving method, and the information of macro base station network load change and micro base station user flow change is analyzed through an intelligent agent module to determine that a micro base station enters a dormant state or a working state. This publication only considers the energy saving by the base station and does not mention the network virtualization network element itself.
The Chinese patent application publication number is CN105592536A, the invention name is 'energy-saving method for dynamically opening/closing microcells in 5G network', the lower limit and the upper limit of the threshold are expressed by designing the flow threshold TL, TH of one network; when the flow load value of the macro cell is higher than the upper limit, the micro cell is opened to supplement the current required network capacity, and when the flow load value is lower than the lower limit, the micro cells are closed to improve the resource utilization rate of the network, so that the aim of saving energy is fulfilled. This publication only considers the energy saving method of microcells and does not mention the network virtualization network element itself.
Network architecture diagram of 5G core network as shown in fig. 1, the network elements of the 5G core network include: access and mobility management AMF, session management SMF, user plane function UPF, unified data management UDM, policy control function PCF, authentication server function AUSF, network capability opennef, network slice selection function NSSF, network registration function NRF. The interfaces N1-N22 between the network elements are all inter-network element communication interfaces defined in the 5G standard.
Network architecture diagram of 4G core network as shown in fig. 2, the network elements of 4G core network include:
MME: the mobility management entity, MME, is used for SAE network, and is also the first control plane node of the access core network, and is used for controlling local access.
Serving GateWay: and the Serving-gateway (Serving-GW) is responsible for the transmission, forwarding, route switching and the like of the UE user plane data.
PDN GateWay: a packet data network gateway (PDN-GW), which is a termination point of a packet data interface, is connected to each packet data network. Providing location functionality with external packet data network sessions.
PCRF: the policy charging function entity is a general name of a function entity supporting service data flow detection, policy implementation and charging based on flow.
HSS: (Home Subscriber Server) a database for storing Subscriber subscription information, the stored information including: user identification information, user security control information, user location information, user policy control information, and the like.
The interfaces s1 to s11 between the network elements in the 4G core network are all inter-network element communication interfaces defined in the 4G standard.
Due to the fact that the number of 4G and 5G communication network elements is large, particularly the number of 5G communication network elements is large. Each network element has capacity limitations, so the same network element is often deployed at the same location to increase processing capacity and perform the same function. Particularly to cope with busy hour capacity issues.
These devices are turned on throughout the year, either busy or idle. When the communication service is low at night, the utilization rate of a plurality of network elements is low, and the low utilization rate is up to several hours every day, which is a great energy waste.
Disclosure of Invention
In view of this, the present invention aims to disclose a centrally controlled intelligent energy-saving network for 5G communication network elements and an energy-saving method, which are intelligent energy-saving functions of network elements under total control, are new methods for applying energy-saving technology to virtualized network elements, and can make up for the deficiency of the existing energy-saving technology to virtualized network elements.
The purpose of the invention is realized by the following technical scheme:
the invention discloses a centrally controlled intelligent energy-saving network of a 5G communication network element, which comprises an energy-saving center and at least one intelligent energy-saving group which has a direct service relationship with the energy-saving center, wherein the energy-saving center is an intelligent energy-saving network element capable of reflecting the busyness degree of a network; the intelligent energy-saving group comprises at least two intelligent energy-saving network elements, wherein at least one intelligent energy-saving network element is an on-duty intelligent energy-saving network element; the energy-saving center detects the busy degree of the energy-saving center, and when the busy degree is smaller than a set reference, the energy-saving mode is started to inform the non-duty intelligent energy-saving network element of going off the line; after receiving the instruction of the energy-saving center, the non-on-duty intelligent energy-saving network element detects the load of the non-on-duty intelligent energy-saving network element, and formally submits the off-line to the energy-saving center when the load is smaller than a set value; and after the awakening rule is met, the energy-saving center closes the energy-saving mode and awakens the offline non-on-duty intelligent energy-saving network element.
Furthermore, the intelligent energy-saving network also comprises at least one energy-saving sub-center, the energy-saving sub-center comprises an intelligent energy-saving network element on duty, and the energy-saving sub-center is in contact with the energy-saving center in a pair manner and receives the information of the energy-saving center; and for the next-level intelligent energy-saving group with direct business relation to contact, forwarding the information of the energy-saving center to the next-level intelligent energy-saving group with direct business relation, and serving as the energy-saving center of the next-level intelligent energy-saving group.
In a second aspect, the invention discloses a centrally controlled intelligent energy-saving method for a 5G communication network element, which comprises the following steps:
step S1, the energy-saving center detects the busy degree of the energy-saving center, when the busy degree is less than the set reference, the energy-saving mode is started, and the non-on-duty intelligent energy-saving network element in the intelligent energy-saving group having direct business relation with the energy-saving center and/or the non-on-duty intelligent energy-saving network element of the energy-saving subcenter are informed to be off-line;
step S2, the non-duty intelligent energy-saving network element detects the load of the network element, and applies for offline to the energy-saving center or the energy-saving sub-center which has direct business relation with the network element when the load is less than the set value;
step S3, the energy-saving center or the energy-saving subcenter starts to detect the awakening rule, and awakens the off-line non-duty intelligent energy-saving network element when the awakening condition is met;
step S4, after receiving the awakening, the off-line non-duty intelligent energy-saving network element starts to provide service, and energy-saving application re-service information is sent to the energy-saving center or the energy-saving branch center which is in contact with the energy-saving network element;
step S5, after receiving the energy saving application re-service information, the energy saving center sends energy saving mode control information for closing the energy saving mode to all intelligent energy saving network elements associated with the energy saving center.
Further, the step S1 includes:
step S101, an energy-saving center starts to detect the busy degree of the energy-saving center, and when the busy degree is smaller than a set reference, an energy-saving mode is started;
step S102, the energy-saving center sends energy-saving mode control information of mode state inquiry to the on-duty intelligent energy-saving network element and/or the energy-saving sub-center of each intelligent energy-saving group, and the on-duty intelligent energy-saving network element replies energy-saving mode response information to the energy-saving center; the energy-saving center sends energy-saving mode control information for starting an energy-saving mode to all network elements of an intelligent energy-saving group with an on-duty intelligent energy-saving network element and/or an energy-saving sub-center; the energy-saving sub-center forwards energy-saving mode control information for starting an energy-saving mode to all network elements of an intelligent energy-saving group of a next-stage intelligent energy-saving network element on duty;
step S103, all the intelligent energy-saving network elements receiving the energy-saving mode control information for starting the energy-saving mode reply energy-saving mode response information to the energy-saving center or the energy-saving sub-center.
Further, the step S2 includes:
step S201, the non-on-duty intelligent energy-saving network element judges the load of the non-on-duty intelligent energy-saving network element, and if the load is smaller than a set standard, an energy-saving interface protocol is used for sending energy-saving off-line application information to an energy-saving center or an energy-saving sub-center which has a direct business relationship with the non-on-duty intelligent energy-saving network element;
step S202, the energy-saving center or the energy-saving sub-center replies energy-saving application response information to the non-on-duty intelligent energy-saving network element, and the reply and storage of the awakening information are successful;
and step S203, the non-on-duty intelligent energy-saving network element logs off the service to the NRF.
Further, the step S3 includes:
step S301, the energy-saving center or the energy-saving subcenter detects whether absolute awakening time in the awakening rule is met, and if the absolute awakening time in the awakening rule is met, the step S303 is switched to; if not, go to step S302;
step S302, the energy-saving center or the energy-saving subcenter detects whether the condition in the awakening rule is met, and if the condition is met, the step S303 is switched to; if not, go back to step S301;
and step S303, the energy-saving center or the energy-saving subcenter starts to wake up for three times.
Further, the flow of conditional wake-up includes:
step S310, the energy-saving center or the energy-saving sub-center starts timing;
step S311, the energy-saving center or the energy-saving sub-center detects whether the busy degree of the energy-saving center or the energy-saving sub-center is larger than a first set threshold, if so, the step S312 is switched to, and if not, the step S310 is restarted;
step S312, the energy-saving center or the energy-saving subcenter judges whether the busy degree of the energy-saving center or the energy-saving subcenter is larger than a second set threshold, if so, the step S314 is carried out, and if not, the step S313 is started;
step 313, the energy-saving center or the energy-saving subcenter judges whether the duration with the busy degree larger than a first set threshold exceeds a first set time value, if so, the step 315 is switched to, and if not, the step 311 is restarted;
step S314, the energy-saving center or the energy-saving subcenter judges whether the duration time with the busy degree larger than a second set threshold value exceeds a second set time value, if so, the step S315 is switched to, and if not, the step S312 is restarted;
and S315, finishing conditional awakening, and awakening the offline non-on-duty intelligent energy-saving network element for three times by the energy-saving center or the energy-saving subcenter.
Furthermore, the first set threshold is smaller than the second set threshold, and the first set time value is greater than the second set time value.
Further, the busy level is calculated by the following formula:
the busy level is (current traffic of the network element/maximum supported traffic of the network element) × 100%.
Further, the absolute wake-up time is a time set in the wake-up rule, and the offline non-on-duty intelligent energy-saving network element is awakened immediately after the absolute wake-up time arrives.
The invention has the beneficial effects that: the 5G core network is used as a new technology to distributively deploy the virtualized network elements, and the new energy-saving method is considered, so that the equipment can more intelligently save energy, and the method starts from each virtualized network element. Meanwhile, the products of different companies in the communication network are many, and the invention can be interconnected and intercommunicated, can be used as an intercommunicated energy-saving interface, mutually supports and carries out energy-saving networking.
Drawings
Fig. 1 is a schematic diagram of a main core network architecture of mobile 5G communication;
fig. 2 is a schematic diagram of a main core network architecture of mobile 4G communication;
fig. 3 is a schematic structural diagram of the intelligent energy-saving network applied to a 5G core network;
FIG. 4 is a schematic diagram of the components of the intelligent energy-saving network of the present invention;
FIG. 5 is a schematic diagram of an intelligent energy-saving network composed of a UPF intelligent energy-saving group and an energy-saving center SMF intelligent energy-saving network element according to the present invention;
FIG. 6 is a schematic diagram of a UPF intelligent energy saving group in the intelligent energy saving network of the present invention;
FIG. 7 is a schematic diagram of a protocol hierarchy of the present invention;
FIG. 8 is a diagram of the mode status query interaction process of the present invention;
FIG. 9 is a diagram of an interaction process for enabling a power saving mode of the present invention;
FIG. 10 is a flow diagram of deregistering a service to an NRF;
FIG. 11 is a flow chart of registering a service with an NRF;
FIG. 12 is a main flow chart of a wake-up procedure in the power saving method of the present invention;
fig. 13 is a conditional wake-up flow chart in the wake-up flow of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
Example one
The invention realizes the intelligent energy-saving function of the network element in the communication network through the 5G communication network element controlled by the center, is suitable for 3G, 4G and 5G networks, and takes the 5G system as an example for description in the embodiment.
The invention discloses a centrally-controlled intelligent energy-saving network for 5G communication network elements, which comprises an energy-saving center and at least one intelligent energy-saving group of other types, wherein the intelligent energy-saving group is in direct business contact with the energy-saving center, the energy-saving center is an intelligent energy-saving network element (such as an SMF network element in a 5G network) capable of reflecting the busyness degree of the network, the intelligent energy-saving group comprises at least two intelligent energy-saving network elements (such as a UPF intelligent energy-saving group comprises at least two UPF intelligent energy-saving network elements), and at least one on-duty intelligent energy-saving network element is arranged. The energy-saving center detects the busy degree of the energy-saving center, and when the busy degree is smaller than a set reference (the reference can be set to be a certain idle time point at night or the duration time of which the busy degree is lower than a certain value and the like), the energy-saving mode is started, the non-duty intelligent energy-saving network element is informed, and the energy-saving mode can be entered. After receiving the instruction of entering the energy-saving mode, the non-duty intelligent energy-saving network element detects the busy degree of the own service, judges the busy degree of the own service by self, formally submits the offline to an energy-saving center, and transfers the service to other network elements of the same type for processing. And after the awakening rule is met, the energy-saving center closes the energy-saving mode and awakens the offline non-on-duty intelligent energy-saving network element.
The non-duty intelligent energy-saving network element has the function of receiving the control of the energy-saving center mode, and can prompt the formal offline function and be awakened to automatically run by judging the busy degree of the intelligent energy-saving network element by self.
The on-duty intelligent energy-saving network element is a network element which needs to be always on and cannot be off-line, and the off-duty intelligent energy-saving network element is a network element which can be off-line. And the non-on-duty intelligent energy-saving network element is offline, and the on-duty intelligent energy-saving network element replaces the on-duty intelligent energy-saving network element to work.
The energy-saving center has the functions of saving the offline information of other non-on-duty intelligent energy-saving network element equipment and awakening the startup function of the offline non-on-duty intelligent energy-saving network element equipment.
The working principle of the intelligent energy-saving network is as follows:
an intelligent energy-saving network composed of an SMF intelligent energy-saving network element (energy-saving center) and an SMF intelligent energy-saving group (intelligent energy-saving group) is taken as an example for explanation:
and the UPF intelligent energy-saving network element works and is distributed with services by the SMF intelligent energy-saving network element. When the user is idle at night, the user can set the user time (the user time can be set), when the user is busy, the SMF intelligent energy-saving network element detects the busy degree of the user, and when the busy degree is smaller than a set reference, the user informs a non-duty UPF intelligent energy-saving network element to enter an energy-saving mode. After receiving the instruction of entering the energy-saving mode, the non-on-duty UPF intelligent energy-saving network element detects the busy degree of the business, judges the busy degree of the business by self, and formally submits the off-line to the SMF intelligent energy-saving network element, and the service of the non-on-duty UPF intelligent energy-saving network element is transferred to the on-duty UPF intelligent energy-saving network element for processing. And after the wake-up rule is met, the SMF intelligent energy-saving network element closes the energy-saving mode, and wakes up the off-line UPF intelligent energy-saving network element which is not on duty.
The energy-saving center is not limited to the SMF intelligent energy-saving network element, the intelligent energy-saving network elements included in the intelligent energy-saving group are not limited to the UPF intelligent energy-saving network element, and the intelligent energy-saving network elements can be replaced by other types of intelligent energy-saving network elements, the network elements of the energy-saving center can reflect the busyness degree of the network, and the network elements of the energy-saving center have direct business relation with the network elements of the intelligent energy-saving.
Example two
On the basis of the first embodiment, at least one energy-saving subcenter is added, the energy-saving subcenter comprises an on-duty intelligent energy-saving network element, and when receiving the energy-saving mode control information of the energy-saving center, the energy-saving subcenter forwards the energy-saving mode control information to the next-stage intelligent energy-saving group having a direct service relationship with the energy-saving center. The purpose of increasing the energy-saving branch center is as follows: some intelligent energy-saving network elements cannot be directly connected with an energy-saving center, so the energy-saving center cannot control the intelligent energy-saving network elements to be offline or online, and the energy-saving center needs to complete the work of the energy-saving center through an energy-saving sub-center connected with the energy-saving sub-center.
The energy-saving sub-center is also an intelligent energy-saving network element, for example, when the SMF is used as the energy-saving center, neither the network element of the AUSF intelligent energy-saving group nor the network element of the NSSF intelligent energy-saving group can directly contact the SMF intelligent energy-saving center, at this time, an AMF intelligent energy-saving network element is added as the energy-saving sub-center, and the SMF intelligent energy-saving center sends related energy-saving mode control information to the network element of the AUSF intelligent energy-saving group and the network element of the NSSF intelligent energy-saving group through the AMF intelligent energy-. The AMF intelligent energy saving network element is considered to be the energy saving center of the AUSF intelligent energy saving group and the NSSF intelligent energy saving group.
EXAMPLE III
The intelligent energy-saving method of the 5G communication network element which is controlled by the center and is suitable for the first embodiment and the second embodiment comprises the following steps:
step S1, the energy-saving center detects the busy degree of the energy-saving center, when the busy degree is less than the set reference, the energy-saving mode is started, and the non-on-duty intelligent energy-saving network element of the energy-saving sub-center and/or the non-on-duty intelligent energy-saving network element in the intelligent energy-saving group which have direct business relation with the energy-saving center are informed to go off-line;
the specific interaction process is shown in fig. 8, and specifically includes the following steps:
step S101, an energy-saving center starts to detect the busy degree of the energy-saving center, and when the busy degree is smaller than a set reference, an energy-saving mode is started;
before the method of the invention is started again, the energy-saving center, the energy-saving sub-center and the intelligent energy-saving network element of the intelligent energy-saving group are firstly set up in a relevant way.
The energy-saving center needs to set an intelligent energy-saving network element list in the intelligent energy-saving network, wherein the list comprises IP addresses and network element types of all intelligent energy-saving network elements, and whether the intelligent energy-saving network elements are on duty or not, and intelligent energy-saving group numbers or branch center numbers where the intelligent energy-saving network elements are located.
The intelligent energy-saving network element of the intelligent energy-saving group is required to set the number of an energy-saving center or an energy-saving sub-center which has a direct service relationship with the intelligent energy-saving network element and set whether the intelligent energy-saving network element is an on-duty intelligent energy-saving network element.
For the energy-saving sub-center, besides the setting of the energy-saving center, the energy-saving sub-center is also set as the 'on-duty equipment', and the serial number of the superior energy-saving center and the serial number of the energy-saving sub-center are also set.
The busyness degree calculation formula of the energy-saving center is as follows:
the busy level is (current traffic of the network element/maximum supported traffic of the network element) × 100%.
For the actual use of the network element calculation, the maximum traffic average value of several days can be taken to replace the "maximum supported traffic of the network element" to participate in the calculation. Therefore, different core services of each network element can be converted into busy degrees, and the energy-saving protocol can be used for various network elements.
When the energy-saving center is an SMF intelligent energy-saving network element, the SMF records the maximum number of established sessions in unit time (taking 5 minutes) every day, stores 5 maximum data of 5 days, and takes the average value of the 5 data as the denominator of effective calculation of the busy degree. The average denominator of the maximum number of established sessions per unit time of 5 days is adopted, and the number of established sessions per unit time and the ratio thereof are the busy degree at present.
SMF busy level (average of current number of established sessions per 5 days per maximum number of established sessions) x 100%.
Unit time: for 5 minutes.
Step S102, the energy-saving center sends first energy-saving mode control information to the on-duty intelligent energy-saving network element and/or the energy-saving sub-center of each intelligent energy-saving group to inquire the mode state, and the on-duty intelligent energy-saving network element replies energy-saving mode response information to the energy-saving center; the energy-saving center sends second energy-saving mode control information to all network elements of the intelligent energy-saving group with the on-duty intelligent energy-saving network element and/or the energy-saving sub-center, and the energy-saving mode is started; and the energy-saving sub-center forwards the control information of the secondary energy-saving mode to all the network elements of the intelligent energy-saving group of the next-stage intelligent energy-saving network element on duty.
The information of the invention is sent through an energy-saving interface protocol, the 5G interface and the protocol of the 3GPP do not have the energy-saving protocol at present, and the invention defines the own energy-saving interface protocol.
The customized energy-saving interface protocol is shown in table 1:
TABLE 1
Energy-saving group number: because different network elements are deployed at different positions, in different areas, and in different managed users, the same type of network elements in different areas may not be able to work in place of each other, so it is necessary to identify the network elements by numbers.
The protocol is sent by using UPD, and the structure diagram of the protocol hierarchy is shown in FIG. 7.
In this step, the protocol content sent by the energy saving center is energy saving mode control information, and the content of the energy saving mode control information is shown in table 2:
TABLE 2
The contents of the energy saving mode response information are shown in table 3:
TABLE 3
When the energy-saving center sends the first energy-saving mode control information, controlling the energy-saving mode mark to be 3, and inquiring the mode state; and in the energy-saving mode response information replied by the intelligent energy-saving network element on duty, controlling the response of the energy-saving mode to be 3 and the state mark of the energy-saving mode to be 3.
And when the energy-saving center sends the second energy-saving mode control information, controlling the energy-saving mode flag to be 2 and starting the energy-saving mode.
And step S103, all the intelligent energy-saving network elements receiving the secondary energy-saving mode control information reply energy-saving mode response information to the energy-saving center or the energy-saving sub-center.
In this step, the energy-saving mode response in the energy-saving mode response message is equal to 1, the energy-saving mode status flag returned by the on-duty intelligent energy-saving network element is equal to 3 in the on-duty, and the energy-saving mode status flag returned by the non-on-duty intelligent energy-saving network element is equal to 1 in the energy-saving mode closing.
And step S2, the non-duty intelligent energy-saving network element detects the load of the network element, and applies for offline to an energy-saving center or an energy-saving sub-center which has a direct business relationship with the network element when the load is less than a set value.
The main interaction process is shown in fig. 9, and includes the following steps:
step S201, the non-on-duty intelligent energy-saving network element determines its own load, and if the load is smaller than the set reference, an energy-saving interface protocol is used to send energy-saving offline application information (carrying a wake-up rule) to an energy-saving center or an energy-saving sub-center having a direct business relationship with itself.
The contents of the energy-saving offline application information are shown in table 4:
TABLE 4
Application mark 1: and 8, official application.
The value of the 'condition control mark' (according to bit, 1 byte has 8 bits of bit1-bit 8):
bit1 ═ 0, bit2 ═ 0: busy levels 1, 2 determine that wake-up is independent of wake-up time.
bit1 ═ 1: busyness level 1 determines wake-up while meeting wake-up time requirements.
bit2 ═ 1: busyness level 2 determines wake-up while meeting wake-up time requirements.
bit3 ═ 1: and awakening when the condition awakening time requirement is met.
bit4 ═ 1: use of awakener default rules (Default may be set to be more than 50% busy for 1 hour or more than 80% busy for 0.5 hour, or more than 7 am)
Typically busy level 2 is higher than busy level 1 and condition 2 duration is shorter than condition 1 duration. Busy level 2 belongs to the emergency wake-up function and busy level 1 belongs to the general wake-up function.
The reference settings of the load are exemplified by: the busy level is less than 10% and lasts for 1 hour, or the busy level is less than 10% and lasts for 0.5 hour, or the time exceeds 0 pm, the reference of the load can be set according to the requirement, and the method is not limited to the above mode. The calculation formula of the busy degree is the same as that of the energy-saving center.
If the non-duty intelligent energy-saving network element is a UPF network element, the busy degree calculation formula of the UPF network element is as follows:
the UPF busy level is (number of sessions present/maximum supported session capacity) x 100%.
The "maximum supported session capacity" of the UPF may be set at factory deployment.
Step S202, the energy-saving center or the energy-saving sub-center replies energy-saving application response information (with the current busy degree of the energy-saving center) to the non-on-duty intelligent energy-saving network element, and the wakeup information is successfully replied and stored.
The contents of the energy saving application response information are shown in table 5:
TABLE 5
And step S203, the non-on-duty intelligent energy-saving network element logs off the service to the NRF.
The contents of the selected information are shown in table 6 (application flag is 3):
TABLE 6
The non-on-duty intelligent energy saving network element deregisters the service to the NRF, here using the 5G standard protocol, see 3GPP TS23.502V15.6.0(2019-06), section 4.17.3. The specific process of logout is shown in fig. 10, and this process belongs to the prior art and is not described again. Nrf (network redundancy function) is a network registration function, and is a network element of 5 GC.
Other network elements with direct service relation can be replaced by other network elements of the same type as the non-duty intelligent energy-saving network elements, and 3GPP TS23.502V15.6.0(2019-06), section 4.17.4 and section 4.17.5 find out the replaced network elements to carry out contact and work.
And the non-duty intelligent energy-saving network element stores the network element information of the contacted energy-saving center or energy-saving branch center, stores the offline time and finishes the offline.
And step S3, the energy-saving center or the energy-saving subcenter starts to detect the awakening rule, and awakens the offline non-on-duty intelligent energy-saving network element when the awakening condition is met.
And the energy-saving center or the energy-saving sub-center awakens the offline non-on-duty intelligent energy-saving network element according to the stored awakening rule and the sequence or the rule (the default is that every time the energy-saving center or the energy-saving sub-center is started for 5 minutes). Wakeup rule as default rule: and the busy degree is more than 50% and lasts for 1 hour or the busy degree is more than 80% and lasts for 0.5 hour, or the time exceeds 7 am, or the requirement of the stored awakening rule is met, and three times of awakening are started.
The awakening rule is an awakening rule stored in the energy-saving center or the energy-saving sub-center, and the awakening step comprises the following steps:
step S301, the energy-saving center or the energy-saving subcenter detects whether absolute awakening time in the awakening rule is met, and if the absolute awakening time in the awakening rule is met, the step S303 is switched to; if not, go to step S302;
step S302, the energy-saving center or the energy-saving subcenter detects whether the condition in the awakening rule is met, and if the condition is met, the step S303 is switched to; if not, go back to step S301;
and step S303, the energy-saving center or the energy-saving subcenter starts to wake up for three times.
By sending wake-up information to the network card that the network element supports wake-up on the network, network card wake-up software supported by the market, which generally continuously sends the MAC address of the network card. The third awakening is to point the network element to send the first awakening, check whether the awakened network element is started or not within a certain time (5-10 minutes), if the awakened network element is not started, send the second awakening again, check whether the awakened network element is started or not within a certain time (5-10 minutes), and if the awakened network element is not started, send the third awakening again.
The flow of conditional wake-up is shown in fig. 13, and specifically includes the following steps:
step S310, the energy-saving center or the energy-saving sub-center starts timing;
step S311, the energy-saving center or the energy-saving sub-center detects whether the busy degree of the energy-saving center or the energy-saving sub-center is larger than a first set threshold, if so, the step S312 is switched to, and if not, the step S310 is restarted;
because the energy-saving center or the energy-saving subcenter has a direct business relation with the non-duty intelligent energy-saving network element, the busy degree of the energy-saving center or the energy-saving subcenter can basically represent the busy degree of the non-duty intelligent energy-saving network element, for example, the business of the UPF is distributed by the SMF, if the busy degree of the SMF is high, the busy degree of the UPF for receiving the task is high.
Step S312, the energy-saving center or the energy-saving subcenter judges whether the busy degree of the energy-saving center or the energy-saving subcenter is larger than a second set threshold, if so, the step S314 is carried out, and if not, the step S313 is started;
step 313, the energy-saving center or the energy-saving subcenter judges whether the duration with the busy degree larger than a first set threshold exceeds a first set time value, if so, the step 315 is switched to, and if not, the step 311 is restarted;
step S314, the energy-saving center or the energy-saving subcenter judges whether the duration time with the busy degree larger than a second set threshold value exceeds a second set time value, if so, the step S315 is switched to, and if not, the step S312 is restarted;
and S315, finishing conditional awakening, and awakening the offline non-on-duty intelligent energy-saving network element for three times by the energy-saving center or the energy-saving subcenter.
The first setting threshold, the second setting threshold, the first setting time value, and the second setting time value in the present invention may be set or modified according to actual situations, for example, the first setting threshold is set to 50%, the second setting threshold is set to 80%, the first setting time value is set to 1 hour, and the second setting time value is set to 0.5 hour. Generally, the first set threshold is smaller than the second set threshold, and the first set time value is greater than the second set time value.
And step S4, after the offline non-duty intelligent energy-saving network element receives the awakening, the offline non-duty intelligent energy-saving network element starts to provide service, and energy-saving application re-service information is sent to the energy-saving center or the energy-saving branch center which is in contact with the offline intelligent energy-saving network element.
And starting the system by the offline non-duty intelligent energy-saving network element, running the program, starting the program to provide service, and recording the service starting time.
Step S4 includes a process of registering the non-on-duty intelligent energy-saving network element with the NRF again, using a 5G standard protocol, see 3GPP TS23.502V15.6.0(2019-06), chapter 4.17.1. The registration process is shown in fig. 11, and the process of registering a service to an NRF belongs to the prior art, and is not described herein again.
The contents of the energy saving application re-service information are shown in table 7:
| number of bytes | Description of the invention | Value and remark |
| 1 | Application mark | 4: re-serving |
| 6 | MAC address | Host MAC address |
| 4 | IP address | Host IP address |
TABLE 7
Step S5, after receiving the energy saving application re-service information, the energy saving center sends energy saving mode control information to all intelligent energy saving network elements associated therewith, and closes the energy saving mode.
The key point of the invention is that the energy-saving branch center of the energy-saving center is to pre-store the information of each controlled energy-saving network element and the information of an operator on duty. An intelligent energy-saving network element (such as SMF) is used as an energy-saving center in the 5G network, the intelligent energy-saving network element judges the load condition of the whole 5G network (calculates the busy degree of the intelligent energy-saving network element) through the traffic of the intelligent energy-saving network element, informs other parts of network elements of starting an energy-saving mode when the busy degree is low, and starts the starting work when the intelligent energy-saving network element is busy at present and closes the energy-saving mode. The difference between this active control and other active controls: 1. judging through own traffic (converting general busy degree) without collecting traffic data of other network elements; 2. other network elements are informed through the interaction of the energy-saving protocol and the 5G protocol, and then the busy degree of each network element is combined for judgment, so that the service is ensured firstly when the service degrees of each group are different. 3. Each energy-saving group can flexibly set the on-duty network element by considering the service condition of the group, thereby ensuring the normal operation of the service. Therefore, 5G distributed network element deployment is achieved to form the energy-saving large network.
The invention can be used for other 5G network elements as energy-saving centers and is also suitable for 4G and 3G network elements.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (10)
1. A kind of intellectual energy-saving network of 5G communication network element of central control, characterized by, including an energy-conserving centre and at least one intellectual energy-saving group with direct business relation of energy-conserving centre, the said energy-conserving centre is an intellectual energy-saving network element that can reflect the network busy degree; the intelligent energy-saving group comprises at least two intelligent energy-saving network elements, wherein at least one intelligent energy-saving network element is an on-duty intelligent energy-saving network element; the energy-saving center detects the busy degree of the energy-saving center, and when the busy degree is smaller than a set reference, the energy-saving mode is started to inform the non-duty intelligent energy-saving network element of going off the line; after receiving the instruction of the energy-saving center, the non-on-duty intelligent energy-saving network element detects the load of the non-on-duty intelligent energy-saving network element, and formally submits the off-line to the energy-saving center when the load is smaller than a set value; and after the awakening rule is met, the energy-saving center closes the energy-saving mode and awakens the offline non-on-duty intelligent energy-saving network element.
2. The intelligent energy-saving network of claim 1, further comprising at least one energy-saving sub-center, wherein the energy-saving sub-center comprises an on-duty intelligent energy-saving network element, and the energy-saving sub-center is in contact with the energy-saving center to receive information of the energy-saving center; and for the next-level intelligent energy-saving group with direct business relation to contact, forwarding the information of the energy-saving center to the next-level intelligent energy-saving group with direct business relation, and serving as the energy-saving center of the next-level intelligent energy-saving group.
3. A5G communication network element intelligent energy-saving method of central control is characterized by comprising the following steps:
step S1, the energy-saving center detects the busy degree of the energy-saving center, when the busy degree is less than the set reference, the energy-saving mode is started, and the non-on-duty intelligent energy-saving network element in the intelligent energy-saving group having direct business relation with the energy-saving center and/or the non-on-duty intelligent energy-saving network element of the energy-saving subcenter are informed to be off-line;
step S2, the non-duty intelligent energy-saving network element detects the load of the network element, and applies for offline to the energy-saving center or the energy-saving sub-center which has direct business relation with the network element when the load is less than the set value;
step S3, the energy-saving center or the energy-saving subcenter starts to detect the awakening rule, and awakens the off-line non-duty intelligent energy-saving network element when the awakening condition is met;
step S4, after receiving the awakening, the off-line non-duty intelligent energy-saving network element starts to provide service, and energy-saving application re-service information is sent to the energy-saving center or the energy-saving branch center which is in contact with the energy-saving network element;
step S5, after receiving the energy saving application re-service information, the energy saving center sends energy saving mode control information for closing the energy saving mode to all intelligent energy saving network elements associated with the energy saving center.
4. The intelligent energy-saving method for 5G communication network elements under central control according to claim 3, wherein the step S1 includes:
step S101, an energy-saving center starts to detect the busy degree of the energy-saving center, and when the busy degree is smaller than a set reference, an energy-saving mode is started;
step S102, the energy-saving center sends energy-saving mode control information of mode state inquiry to the on-duty intelligent energy-saving network element and/or the energy-saving sub-center of each intelligent energy-saving group, and the on-duty intelligent energy-saving network element replies energy-saving mode response information to the energy-saving center; the energy-saving center sends energy-saving mode control information for starting an energy-saving mode to all network elements of an intelligent energy-saving group with an on-duty intelligent energy-saving network element and/or an energy-saving sub-center; the energy-saving sub-center forwards energy-saving mode control information for starting an energy-saving mode to all network elements of an intelligent energy-saving group of a next-stage intelligent energy-saving network element on duty;
step S103, all the intelligent energy-saving network elements receiving the energy-saving mode control information for starting the energy-saving mode reply energy-saving mode response information to the energy-saving center or the energy-saving sub-center.
5. The intelligent energy-saving method for 5G communication network elements under central control according to claim 3, wherein the step S2 includes:
step S201, the non-on-duty intelligent energy-saving network element judges the load of the non-on-duty intelligent energy-saving network element, and if the load is smaller than a set standard, an energy-saving interface protocol is used for sending energy-saving off-line application information to an energy-saving center or an energy-saving sub-center which has a direct business relationship with the non-on-duty intelligent energy-saving network element;
step S202, the energy-saving center or the energy-saving sub-center replies energy-saving application response information to the non-on-duty intelligent energy-saving network element, and the reply and storage of the awakening information are successful;
and step S203, the non-on-duty intelligent energy-saving network element logs off the service to the NRF.
6. The intelligent energy-saving method for 5G communication network elements under central control according to claim 3, wherein the step S3 includes:
step S301, the energy-saving center or the energy-saving subcenter detects whether absolute awakening time in the awakening rule is met, and if the absolute awakening time in the awakening rule is met, the step S303 is switched to; if not, go to step S302;
step S302, the energy-saving center or the energy-saving subcenter detects whether the condition in the awakening rule is met, and if the condition is met, the step S303 is switched to; if not, go back to step S301;
and step S303, the energy-saving center or the energy-saving subcenter starts to wake up for three times.
7. The intelligent energy-saving method for the centrally-controlled 5G communication network element according to claim 6, wherein the conditional wake-up process comprises:
step S310, the energy-saving center or the energy-saving sub-center starts timing;
step S311, the energy-saving center or the energy-saving sub-center detects whether the busy degree of the energy-saving center or the energy-saving sub-center is larger than a first set threshold, if so, the step S312 is switched to, and if not, the step S310 is restarted;
step S312, the energy-saving center or the energy-saving subcenter judges whether the busy degree of the energy-saving center or the energy-saving subcenter is larger than a second set threshold, if so, the step S314 is carried out, and if not, the step S313 is started;
step 313, the energy-saving center or the energy-saving subcenter judges whether the duration with the busy degree larger than a first set threshold exceeds a first set time value, if so, the step 315 is switched to, and if not, the step 311 is restarted;
step S314, the energy-saving center or the energy-saving subcenter judges whether the duration time with the busy degree larger than a second set threshold value exceeds a second set time value, if so, the step S315 is switched to, and if not, the step S312 is restarted;
and S315, finishing conditional awakening, and awakening the offline non-on-duty intelligent energy-saving network element for three times by the energy-saving center or the energy-saving subcenter.
8. The intelligent energy-saving method for 5G communication network elements under central control as claimed in claim 7, wherein the first set threshold is smaller than the second set threshold, and the first set time value is greater than the second set time value.
9. The intelligent energy-saving method for the centrally-controlled 5G communication network element according to claim 4, wherein the calculation formula of the busy degree is as follows:
the busy level is (current traffic of the network element/maximum supported traffic of the network element) × 100%.
10. The intelligent energy-saving method for 5G communication network elements under central control according to claim 6, wherein the absolute wake-up time is a time set in the wake-up rule, and the offline non-on-duty intelligent energy-saving network element is waken up immediately after the absolute wake-up time.
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