CN105592537B - Energy-saving method and system for 5G relay network - Google Patents

Energy-saving method and system for 5G relay network Download PDF

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Publication number
CN105592537B
CN105592537B CN201610111711.5A CN201610111711A CN105592537B CN 105592537 B CN105592537 B CN 105592537B CN 201610111711 A CN201610111711 A CN 201610111711A CN 105592537 B CN105592537 B CN 105592537B
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base station
users
special
unit
provide service
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CN105592537A (en
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方海鹰
陈志强
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GUANGZHOU YINHE NETWORK COMMUNICATION Co Ltd
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GUANGZHOU YINHE NETWORK COMMUNICATION Co Ltd
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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
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • 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 relay network energy-saving method and a system, wherein whether a special base station group exists in a base station group of a 5G network is judged, if so, a base station which can provide service for most users at the moment is selected from the special base station group and activated; if not, selecting the base station which can provide service for the most users at that time from the base station group and activating; the special base station is a base station which certain users cannot access the 5G network if the special base station is closed; the activation number of the base station is minimized, the waste of resources is avoided, the activation time is reduced, and great convenience is brought.

Description

Energy-saving method and system for 5G relay network
Technical Field
The invention relates to the technical field of fifth generation mobile communication (5G) relay, in particular to a method and a system for saving energy of a 5G relay network.
Background
The relay technology is an important technology of fifth generation mobile communication (5G), and for the network energy saving problem, the relay technology mainly achieves the purpose of energy saving and consumption reduction by turning off a part of base stations with lower traffic load in a 5G (fifth generation mobile phone mobile communication standard, also called as a fifth generation mobile communication technology) network. Traffic in cellular local areas is drastically reduced due to the day and night habits of most users (work during the day and rest at night) and the tidal sand effect (daytime concentrated in business office areas and night returns to residential areas). However, the network is planned according to the peak traffic volume when planning, which results in that the peak capacity of many cells is not fully utilized. It is possible to reduce energy consumption by switching off its base stations when some cells have low or even completely zero traffic. However, the base station shutdown at this time is completely passive, controlled by the traffic tidal sand effect. Therefore, it can be referred to as a base station passive shutdown strategy. The application limitation of the strategy is relatively large.
In the base station passive turn-off strategy, a base station can be turned off if there are no users in its coverage area, but in practice this is rarely the case. When the traffic volume is low, the wireless communication system can actively initiate the tidal sand effect of the communication service by controlling the topological structure of the network. For example, increasing the transmission power, adjusting the antenna height and inclination, and expanding the coverage area of the base station by base station cooperation or relay, etc., attract more users to the coverage area of the base station to obtain service. Secondly, the unneeded base stations are closed to save energy, the base stations are idle base stations, and no user accesses to the network in the cell. Closing the idle base station does not affect the access of the user.
In an actual communication network, a minimum number of base station activations needs to be calculated. The general calculation method is as follows: in each selection of the base stations which can provide service for the most users at the current situation, the base stations which need to be activated are more in number until all the users have the base stations to provide service for the users, so that the resource waste is caused, the activation time is also increased, and in the actual situation, the minimum base station activation number is hoped to be obtained.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for saving energy in a 5G relay network, and aim to solve the problems of resource waste and activation time increase caused by a large number of base stations that need to be activated in the prior art.
The technical scheme adopted by the invention for solving the technical problem is as follows:
A5G relay network energy saving method comprises the following steps:
A. judging whether a special base station group exists in the base station group of the 5G network, if so, selecting a base station which can provide service for the most users at that time from the special base station group and activating the base station; if not, selecting the base station which can provide service for the most users at that time from the base station group and activating; the special base station is a base station which certain users cannot access the 5G network if the special base station is closed.
In the energy saving method for the 5G relay network, in the step a, the base station capable of providing services for the maximum number of users indicates that the maximum number of users can be simultaneously accessed within the available bandwidth limit of the base station.
In the energy saving method for the 5G relay network, in the step a, if there are a plurality of base stations with the largest number of service users, a base station with the largest occupied bandwidth is selected from the plurality of base stations and activated.
The energy saving method for the 5G relay network includes the following steps:
a1, establishing a set S corresponding to the special base station group; establishing a set B corresponding to a base station group, wherein the set B comprises all base stations in a 5G network;
a2, calculating the number of base stations which can provide service for all users under the current condition, judging whether a special base station exists, and adding the judged special base station into the set S;
a3, judging whether the set S is empty, if not, executing the step A4; if yes, go to step A7;
a4, selecting base stations which can provide service for most users from the set S and activating, accessing corresponding users under special base stations, then accessing most users under the condition of not exceeding available bandwidth, and executing step A5;
a5, removing the selected active base station from the set B and the set S, removing the users communicating with the base station, judging whether the users are empty, if not, executing the step A6; if yes, go to step A9;
a6, judging whether the set S is empty, if not, returning to the step A4; if yes, returning to the step A2;
a7, selecting base stations which can provide service for the most users from all the base station sets B, activating, accessing the most users without exceeding the available bandwidth, and executing the step A8;
a8, removing the selected active base station from the set B and the set S, removing the users communicating with the base station, judging whether the users are empty, if not, returning to the step A2; if yes, go to step A9;
and A9, performing load balancing among the active base stations.
The energy saving method for the 5G relay network, wherein the step a1 further includes: and establishing a set S corresponding to the special base station group and setting the set S to be null.
A5G relay network energy-saving system comprises:
the base station activation module is used for judging whether a special base station group exists in the base station groups of the 5G network, if so, selecting a base station which can provide service for the most users at the moment from the special base station group and activating the base station; if not, selecting the base station which can provide service for the most users at that time from the base station group and activating; the special base station is a base station which certain users cannot access the 5G network if the special base station is closed.
In the energy saving system for the 5G relay network, in the base station activation module, the base station capable of providing services for the maximum number of users indicates that the maximum number of users can be accessed simultaneously within the available bandwidth limit of the base station.
In the energy saving system for the 5G relay network, in the base station activation module, if there are a plurality of base stations with the largest number of service users, a base station with the largest occupied bandwidth is selected from the plurality of base stations and activated.
The 5G relay network energy saving system, wherein the base station activation module includes:
the set establishing unit is used for establishing a set S corresponding to the special base station group; establishing a set B corresponding to a base station group, wherein the set B comprises all base stations in a 5G network;
a set adding unit, configured to calculate the number of base stations that can provide service for all users under the current condition, determine whether a special base station exists, and add the determined special base station to the set S;
a first set judgment unit, configured to judge whether the set S is empty, and if not, execute the special base station activation unit; if yes, executing a base station activation unit;
a special base station activation unit, which is used for selecting and activating the base station which can provide service for the most users from the set S, accessing the corresponding users under the special base station, then accessing the most users under the condition of not exceeding the available bandwidth, and executing the special base station updating unit;
a special base station updating unit for removing the selected active base station from the set B and the set S, simultaneously removing the user communicating with the special base station, judging whether the user is empty, if not, executing a second set judgment unit; if yes, executing a load balancing unit;
the second set judgment unit is used for judging whether the set S is empty or not, and if not, the special base station activation unit returns; if yes, returning to the set adding unit;
a base station activation unit, configured to select and activate a base station that can provide service for the most users from all base station sets B, access the most users without exceeding available bandwidth, and perform step A8;
an update judging unit, which is used for removing the selected active base station from the set B and the set S, simultaneously removing the user communicating with the selected active base station, judging whether the user is empty, if not, returning to the set adding unit; if yes, executing a load balancing unit;
and the load balancing unit is used for carrying out load balancing among the activated base stations.
The 5G relay network energy saving system, wherein the set establishing unit is further configured to establish a set S corresponding to a special base station group and set the set S to be null.
The invention provides a 5G relay network energy-saving method and a system, which effectively solve the problems of resource waste and activation time increase caused by a large number of base stations needing to be activated in the prior art, and select and activate the base station which can provide service for the most users in the special base station group by judging whether the special base station group exists in the base station group of the 5G network; if not, selecting the base station which can provide service for the most users at that time from the base station group and activating; the special base station is a base station which certain users cannot access the 5G network if the special base station is closed; the activation number of the base station is minimized, the waste of resources is avoided, the activation time is reduced, and great convenience is brought.
Drawings
Fig. 1 is a flowchart of a preferred embodiment of a 5G relay network energy saving method provided in the present invention.
Fig. 2 is a flowchart of a method of an embodiment of an energy saving method for a 5G relay network according to the present invention.
FIG. 3 is a schematic diagram of a simulation system model.
Fig. 4 is a diagram illustrating a comparison of performance of the base station sleep algorithm.
Fig. 5 is a schematic diagram of the proportion of active base stations in different cell radii.
Fig. 6 is a diagram illustrating the consumption of operating power in different cell radii.
Fig. 7 is a block diagram of a preferred embodiment of an energy saving system of a 55G relay network according to the present invention.
Detailed Description
The invention provides a method and a system for saving energy of a 5G relay network, and in order to make the purpose, technical scheme and advantages of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a flowchart of a preferred embodiment of a method for saving energy in a 5G relay network according to the present invention, and as shown in the figure, the method includes the following steps:
step S100, judging whether a special base station group exists in the base station groups of the 5G network, if so, selecting the base station which can provide service for the most users at the moment from the special base station group and activating the base station; if not, selecting the base station which can provide service for the most users at that time from the base station group and activating;
the special base station is a base station which certain users cannot access the 5G network if the special base station is closed.
The above steps are described in detail with reference to specific examples.
In step S100, it is determined whether a special base station group exists in the base station groups of the 5G network, and if so, a base station that can provide service for the most users at that time is selected from the special base station group and activated; if not, selecting the base station which can provide service for the most users at that time from the base station group and activating; the special base station is a base station which certain users cannot access the 5G network if the special base station is closed.
In an actual communication network, a minimum number of base station activations needs to be calculated. The general calculation method is as follows: in each selection of the base stations which can provide service for the most users at the moment, the base stations which need to be activated are activated until all the users have the base stations to provide service for the users, so that the method ensures that the number of the base stations which need to be activated is large, the waste of resources is caused, the activation time is also increased, and the minimum base station activation number is hopefully obtained in the actual situation.
In order to avoid the problems, the invention provides a novel base station dormancy method, which has the basic idea that whether a special base station exists is judged at first when an activated base station is selected each time; if the user exists, selecting the base station which can provide service for the most users under the current condition from the base stations, activating and preferentially accessing the aforementioned users; if not, the base station which can provide service for the most users under the condition is selected from all the base stations to be activated. A special base station means that if it is switched off, there must be some users that cannot access the network.
Preferably, in step S100, the base station capable of providing services for the maximum number of users indicates that the maximum number of users can be accessed simultaneously within the available bandwidth limit of the base station. Preferably, in step S100, if there are a plurality of base stations with the largest number of serving users, a base station with the largest occupied bandwidth is selected from the plurality of base stations and activated.
In particular, it was mentioned earlier that each selected active base station is the base station active selected to serve the largest number of users, but two points are noted, the number of users that can be served first being not representative of the number of users in its coverage area, which is representative of the maximum number of users that can be accessed simultaneously within its available bandwidth limits. For example, there are N users in the coverage of the base station a, but if all the N users access the base station a, the sum of the occupied bandwidths of the N users will exceed the available bandwidth of the base station a, so the number of users that the base station a can serve is not greater than the number of users in the coverage; secondly, if a plurality of base stations with the largest number of service users exist at the same time, the base station with the largest occupied bandwidth, namely the smallest residual bandwidth, is selected from the plurality of base stations.
Referring to fig. 2, fig. 2 is a flowchart of a method of an application embodiment of the energy saving method for the 5G relay network provided in the present invention, and further, the step S100 specifically includes:
s101, establishing a set S corresponding to the special base station group; establishing a set B corresponding to a base station group, wherein the set B comprises all base stations in a 5G network;
s102, calculating the number of base stations which can provide service for all users under the current condition, judging whether special base stations exist or not, and adding the judged special base stations into a set S;
s103, judging whether the set S is empty, and if not, executing a step S104; if yes, go to step S107;
s104, selecting and activating a base station which can provide service for the most users from the set S, accessing a corresponding user under a special base station, then accessing the most users under the condition of not exceeding available bandwidth, and executing a step S105;
s105, removing the selected active base station from the set B and the set S, simultaneously removing the user communicating with the selected active base station, judging whether the user is empty, and if not, executing the step S106; if yes, go to step S109;
s106, judging whether the set S is empty, if not, returning to the step S104; if yes, returning to the step S102;
s107, selecting and activating base stations which can provide service for the most users from all the base station sets B, accessing the most users under the condition that the available bandwidth is not exceeded, and executing the step S108;
s108, removing the selected active base station from the set B and the set S, simultaneously removing the user communicating with the selected active base station, judging whether the user is empty, and if not, returning to the step S102; if yes, go to step S109;
and S109, carrying out load balancing among the active base stations.
Specifically, the method includes initializing a flow and establishing a special base station set S; the set B is established to contain all base stations in the network. The set S is also a group of special base stations. Then, in step S102, the number of base stations that can provide service for all users under the current situation is calculated, whether a special base station exists is determined, and the determined special base station is added to the set S. Preferably, the step S101 further includes: and establishing a set S corresponding to the special base station group and setting the set S to be null.
And then determining whether the set S is empty, in one case, if not, indicating that a special base station exists, and then executing step S104. In step S104, the base station that can provide service for the most users is selected from the set S and activated, the corresponding user under a special base station is accessed, then the most users are accessed without exceeding the available bandwidth, and then updating is performed, wherein updating refers to removing the selected activated base station from the set B and the set S and removing the users communicating with the selected activated base station. After updating, judging whether the user is empty, if not, executing step S106; if yes, load balancing is carried out between the active base stations. In step S106, it is determined whether the set S is empty, and if not, the process returns to step S104; if so, the process returns to step S102. The step of judging whether the user is empty refers to whether the user activating the base station is empty, if so, it indicates that no user is on the activating base station, and if not, it indicates that there are users on the activating base station.
If the set S is empty, it indicates that there is no special base station, then step S107 is executed, a base station capable of providing service for the most users is selected from all the base station sets B and activated, the most users are accessed under the condition that the available bandwidth is not exceeded, the selected activated base station is removed from the set B and the set S, and users communicating with the selected activated base station are removed, then it is determined whether the user is empty, if not, then step S102 is returned to; if yes, load balancing is carried out among the activated base stations. The step of judging whether the user is empty means whether the user of the base station is empty, if so, it means that no user exists on the base station, and if not, it means that there are users on the base station.
Through the method flow, the invention provides an active base station dormancy strategy, obtains the least base station activation number, thereby realizing the energy saving of the 5G relay network.
The present invention is described in detail below in the simulation of the present invention.
FIG. 3 is a schematic diagram of a simulation system model, with hexagons representingOne cell corresponds to one base station, and the area in the figure isThe number of initial users is 1000 and the radius of each cell is 200 m. In fig. 3, 3 hot spots are distributed, each user (including a user newly arriving later) has a 5% probability of being in one of the hot spots, where the user is normally distributed, or is evenly distributed in the whole area, and the propagation model is: PL is 36.7log10(d)+22.7+26log10(fc) In order to ensure that a newly arrived user can access service, each activated base station reserves a part of bandwidth, and α represents the proportion of reserved bandwidth, an interruption phenomenon occurs if the user finds that no base station can provide service for the newly arrived user, obviously, when α is increased, the reserved bandwidth is increased, the available bandwidth is decreased, the sleep strategy is conservative at the moment, namely, the proportion of the activated base stations is higher, and the interruption probability of the co-workers is decreased, so α needs to be adjusted appropriately to balance energy conservation and interruption probability, and specific simulation parameters are shown in table 1.
Carrier frequency fc 2GHz
Maximum available bandwidth of base station 5MHz
Rate of user demand 122kbit/s
Noise power spectral density N 0 4×10-21
User arrival rate λ 5.55/s
Average service duration mu 180s
TABLE 1
Referring to fig. 4, fig. 4 is a schematic performance comparison diagram of a base station dormancy algorithm, and fig. 4 shows that the performance comparison between the base station dormancy method provided by the present invention and the centralized algorithm of the existing base station dormancy method is schematic, as shown in the figure, when the user outage probabilities are the same, the base station dormancy method provided by the present invention obtains better performance, that is, consumes less operation energy and obtains higher green efficiency.
Meanwhile, in order to evaluate the influence of the cell radius on the base station sleep strategy, further simulation is continued, and the size of the cell radius is changed under the condition that the area of a given area, the number of users, the user arrival rate and the average service time are not changed. In order to ensure that the number of cells is an integer, the cell radius takes some special values, and the specific values are shown in table 2.
Figure BDA0000931152170000101
TABLE 2
Referring to fig. 5 and fig. 6 together, fig. 5 is a schematic diagram illustrating a ratio of active base stations in different cell radii, and fig. 6 is a schematic diagram illustrating consumption of operating power in different cell radii. Fig. 5 and 6 show the proportion of active base stations and the operating power consumed for different cell radii when the base station dormancy strategy is adopted. For higher user outage probability requirements (10)-4) The number of activated base stations is larger, and the consumed operation power is also larger. At a probability of interruption equal to 10-3In the case of (2), the proportion of 166m cell radius active base stations is minimum, but 200m is smallThe cell radius is the smallest proportion of active base stations, and the cell radius also consumes the least power. The result shows that the radius of the cell has a large influence on the operation power consumed by the whole network in a given area, and the network planning needs to carry out actual analysis and reasonable layout according to the conditions in a specific area.
The above is a simulation verification of the present invention. According to the simulation data, the base station dormancy method provided by the invention has better performance, namely consumes less operation energy and obtains higher green efficiency.
Based on the above 5G relay network energy saving method, the present invention further provides a 5G relay network energy saving system, as shown in fig. 7, the system includes:
a base station activation module 10, configured to determine whether a special base station group exists in a base station group of the 5G network, and if so, select and activate a base station that can provide service for the most users at that time from the special base station group; if not, selecting the base station which can provide service for the most users at that time from the base station group and activating; the special base station is a base station which certain users cannot access the 5G network if the special base station is closed; as described in step S100.
Further, in the base station activation module, the base station that can provide service for the most users indicates that the number of users that can be accessed simultaneously is the most within the available bandwidth limit of the base station.
Further, in the base station activation module, if there are a plurality of base stations with the largest number of serving users, a base station with the largest occupied bandwidth is selected from the plurality of base stations and activated.
Further, the base station activation module includes:
the set establishing unit is used for establishing a set S corresponding to the special base station group; establishing a set B corresponding to a base station group, wherein the set B comprises all base stations in a 5G network;
a set adding unit, configured to calculate the number of base stations that can provide service for all users under the current condition, determine whether a special base station exists, and add the determined special base station to the set S;
a first set judgment unit, configured to judge whether the set S is empty, and if not, execute the special base station activation unit; if yes, executing a base station activation unit;
a special base station activation unit, which is used for selecting and activating the base station which can provide service for the most users from the set S, accessing the corresponding users under the special base station, then accessing the most users under the condition of not exceeding the available bandwidth, and executing the special base station updating unit;
a special base station updating unit for removing the selected active base station from the set B and the set S, simultaneously removing the user communicating with the special base station, judging whether the user is empty, if not, executing a second set judgment unit; if yes, executing a load balancing unit;
the second set judgment unit is used for judging whether the set S is empty or not, and if not, the special base station activation unit returns; if yes, returning to the set adding unit;
a base station activation unit, configured to select and activate a base station that can provide service for the most users from all base station sets B, access the most users without exceeding available bandwidth, and perform step A8;
an update judging unit, which is used for removing the selected active base station from the set B and the set S, simultaneously removing the user communicating with the selected active base station, judging whether the user is empty, if not, returning to the set adding unit; if yes, executing a load balancing unit;
and the load balancing unit is used for carrying out load balancing among the activated base stations.
Further, the set establishing unit is further configured to establish a set S corresponding to the special base station group and set the set S to be null.
In summary, according to the energy saving method and system for the 5G relay network provided by the present invention, by determining whether a special base station group exists in the base station groups of the 5G network, if yes, a base station that can provide service for the most users at that time is selected from the special base station group and activated; if not, selecting the base station which can provide service for the most users at that time from the base station group and activating; the special base station is a base station which certain users cannot access the 5G network if the special base station is closed; the activation number of the base station is minimized, the waste of resources is avoided, the activation time is reduced, great convenience is brought, and the method has great commercial value. The invention is applied to the base station management system of the 5G relay technology, and can greatly save energy.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims (8)

1. A5G relay network energy saving method is characterized by comprising the following steps:
A. judging whether a special base station group exists in the base station group of the 5G network, if so, selecting a base station which can provide service for the most users at that time from the special base station group and activating the base station; if not, selecting the base station which can provide service for the most users at that time from the base station group and activating; the special base station is a base station which certain users cannot access the 5G network if the special base station is closed;
the step A specifically comprises the following steps:
a1, establishing a set S corresponding to the special base station group; establishing a set B corresponding to a base station group, wherein the set B comprises all base stations in a 5G network;
a2, calculating the number of base stations which can provide service for all users under the current condition, judging whether a special base station exists, and adding the judged special base station into the set S;
a3, judging whether the set S is empty, if not, executing the step A4; if yes, go to step A7;
a4, selecting base stations which can provide service for most users from the set S and activating, accessing corresponding users under special base stations, then accessing most users under the condition of not exceeding available bandwidth, and executing step A5;
a5, removing the selected active base station from the set B and the set S, removing the users communicating with the base station, judging whether the users are empty, if not, executing the step A6; if yes, go to step A9;
a6, judging whether the set S is empty, if not, returning to the step A4; if yes, returning to the step A2;
a7, selecting base stations which can provide service for the most users from all the base station sets B, activating, accessing the most users without exceeding the available bandwidth, and executing the step A8;
a8, removing the selected active base station from the set B and the set S, removing the users communicating with the base station, judging whether the users are empty, if not, returning to the step A2; if yes, go to step A9;
and A9, performing load balancing among the active base stations.
2. The energy saving method for 5G relay network according to claim 1, wherein in the step a, the base station capable of providing service for the maximum number of users indicates that the maximum number of users can be accessed simultaneously within the available bandwidth limit of the base station.
3. The energy saving method for 5G relay network according to claim 1 or 2, wherein in the step A, if there are a plurality of base stations with the largest number of users, the base station with the largest occupied bandwidth is selected from the plurality of base stations and activated.
4. The 5G relay network energy saving method according to claim 1, wherein the step A1 further comprises: and establishing a set S corresponding to the special base station group and setting the set S to be null.
5. A5G relay network energy-saving system is characterized by comprising:
the base station activation module is used for judging whether a special base station group exists in the base station groups of the 5G network, if so, selecting a base station which can provide service for the most users at the moment from the special base station group and activating the base station; if not, selecting the base station which can provide service for the most users at that time from the base station group and activating; the special base station is a base station which certain users cannot access the 5G network if the special base station is closed;
the base station activation module comprises:
the set establishing unit is used for establishing a set S corresponding to the special base station group; establishing a set B corresponding to a base station group, wherein the set B comprises all base stations in a 5G network;
a set adding unit, configured to calculate the number of base stations that can provide service for all users under the current condition, determine whether a special base station exists, and add the determined special base station to the set S;
a first set judgment unit, configured to judge whether the set S is empty, and if not, execute the special base station activation unit; if yes, executing a base station activation unit;
a special base station activation unit, which is used for selecting and activating the base station which can provide service for the most users from the set S, accessing the corresponding users under the special base station, then accessing the most users under the condition of not exceeding the available bandwidth, and executing the special base station updating unit;
a special base station updating unit for removing the selected active base station from the set B and the set S, simultaneously removing the user communicating with the special base station, judging whether the user is empty, if not, executing a second set judgment unit; if yes, executing a load balancing unit;
the second set judgment unit is used for judging whether the set S is empty or not, and if not, the special base station activation unit returns; if yes, returning to the set adding unit;
a base station activation unit, configured to select and activate a base station that can provide service for the most users from all base station sets B, access the most users without exceeding available bandwidth, and perform step A8;
an update judging unit, which is used for removing the selected active base station from the set B and the set S, simultaneously removing the user communicating with the selected active base station, judging whether the user is empty, if not, returning to the set adding unit; if yes, executing a load balancing unit;
and the load balancing unit is used for carrying out load balancing among the activated base stations.
6. The energy saving system of claim 5, wherein the base station activation module indicates the maximum number of users that can be accessed simultaneously within the available bandwidth limit of the base station.
7. The energy saving system of claim 5 or 6, wherein in the base station activation module, if there are a plurality of base stations with the largest number of users, the base station with the largest occupied bandwidth is selected from the plurality of base stations and activated.
8. The energy saving system of claim 5G relay network, wherein the set establishing unit is further configured to establish a set S corresponding to a special base station group and set the set S to be null.
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