CN112367698A

CN112367698A - Base station energy saving method and device

Info

Publication number: CN112367698A
Application number: CN202011388239.2A
Authority: CN
Inventors: 吕婷; 曹亘; 张涛; 李福昌; 冯毅
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-02-12
Anticipated expiration: 2040-12-01
Also published as: CN112367698B

Abstract

The invention discloses a base station energy-saving method and device, relates to the technical field of communication, and is used for ensuring normal access of User Equipment (UE) in the energy-saving process of a base station. The method comprises the following steps: determining a beam to be switched off and determining at least one first beam which has a common coverage relation with the beam to be switched off; if the first target beam exists in the at least one first beam, the beam to be turned off is turned off, and the UE in the beam to be turned off is transferred to the first target beam; the weak coverage rate of the first target beam in a preset time period is smaller than a third threshold, and the beam weight of the first target beam is the maximum value in the beam weight of at least one first beam; the beam weight of the first beam is positively correlated with the correlation degree of the first beam and the beam to be turned off, and the beam weight of the first beam is negatively correlated with the weak coverage rate of the first beam in a preset time period. The embodiment of the invention is applied to energy conservation of the base station.

Description

Base station energy saving method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for saving energy for a base station.

Background

With the development of wireless communication networks from Long Term Evolution (LTE) networks to 5th generation mobile communication technology (5G) networks, for 5G multi-channel base station devices, a base station may transmit a plurality of broadcast beams (hereinafter referred to as beams for short), and different beams cover different areas. The 5G base station can improve the space coverage performance of the network in a multi-beam scanning mode. The 5G base station mostly passes through a cell switching-off technology, namely, the cell is switched off so as to realize the energy saving of the base station.

However, the existing cell turn-off technology only supports cell-level energy saving, and for a cell supporting multi-beam transmission, all beams do not transmit and receive signals any more after the cell is turned off, and no signal exists in the coverage area of the whole cell, which causes coverage holes to exist, and affects normal access of user equipment (user, equipment, UE).

Disclosure of Invention

The embodiment of the invention provides a base station energy saving method and device, which are used for ensuring normal access of User Equipment (UE) while the base station saves energy.

In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

in a first aspect, a method for saving energy of a base station is provided, where the method includes: determining a beam to be switched off; the number of User Equipment (UE) in the beam to be turned off is smaller than a first threshold value within a preset time period, or the weak coverage rate of the beam to be turned off within the preset time period is larger than or equal to a second threshold value; determining at least one first beam having a co-coverage relationship with a beam to be switched off; if the first target beam exists in the at least one first beam, the beam to be turned off is turned off, and the UE in the beam to be turned off is transferred to the first target beam; the weak coverage rate of the first target beam in a preset time period is smaller than a third threshold, and the beam weight of the first target beam is the maximum value in the beam weight of at least one first beam; the beam weight of the first beam is positively correlated with the correlation degree of the first beam and the beam to be turned off, and the beam weight of the first beam is negatively correlated with the weak coverage rate of the first beam in a preset time period; the correlation degree of the first beam and the beam to be turned off is used for reflecting the overlapping coverage between the first beam and the beam to be turned off.

In a second aspect, a base station energy saving device is provided, which includes a determining unit, a shutting-down unit, and a migrating unit; a determining unit, configured to determine a beam to be turned off; the number of User Equipment (UE) in the beam to be turned off is smaller than a first threshold value within a preset time period, or the weak coverage rate of the beam to be turned off within the preset time period is larger than or equal to a second threshold value; the determining unit is further used for determining at least one first beam which has a co-coverage relation with the beam to be switched off; the device comprises a switching-off unit, a receiving unit and a processing unit, wherein the switching-off unit is used for switching off a beam to be switched off if a first target beam exists in at least one first beam; the weak coverage rate of the first target beam in a preset time period is smaller than a third threshold, and the beam weight of the first target beam is the maximum value in the beam weight of at least one first beam; the beam weight of the first beam is positively correlated with the correlation degree of the first beam and the beam to be turned off, and the beam weight of the first beam is negatively correlated with the weak coverage rate of the first beam in a preset time period; the correlation degree of the first beam and the beam to be turned off is used for reflecting the overlapping coverage between the first beam and the beam to be turned off; and the migration unit is used for migrating the UE in the beam to be switched off to the first target beam.

In a third aspect, there is provided a computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform the base station power saving method as in the first aspect.

In a fourth aspect, an energy saving device for a base station includes: a processor and a memory. Wherein the memory is used for storing one or more programs, the one or more programs comprising computer executable instructions, and the processor executes the computer executable instructions stored by the memory when the base station energy saving device is running, so as to make the base station energy saving device execute the base station energy saving method according to the first aspect.

In a fifth aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the base station power saving method of the first aspect.

The embodiment of the invention provides a base station energy saving method and device, which are applied to base station energy saving, wherein after beams to be turned off are determined, at least one first beam having a common coverage relation with the beams to be turned off is determined, a first target beam for transferring UE in the beams to be turned off is determined from the at least one first beam, and finally the turning off of the beams to be turned off and the transferring of the UE can be realized. In the process of determining the first target beam, the beam weight of the first target beam is used for reflecting the correlation degree with the beam to be switched off and the weak coverage rate of the first target beam, so that after the beam to be switched off is switched off, the UE in the switched-off beam can be successfully transferred to the first target beam, and the normal access of the UE in the energy-saving process of the base station can be ensured.

On the other hand, when the first target beam having the same coverage relation with the beam to be switched off does not exist, a second target beam or a third target beam is further determined, and the azimuth angle and the beam width of the second target beam or the third target beam are adjusted; and turning off the beam to be turned off, and migrating the UE in the beam to be turned off to the adjusted second target beam or third target beam. Through dynamic adjustment of the second target beam or the third target beam and the azimuth angle and the width of the beam, the beam with the same coverage relation is constructed for the beam to be switched off, so that after the beam to be switched off is switched off, the UE in the switched-off beam can be successfully transferred to the second target beam or the third target beam, and the normal access of the UE in the energy-saving process of the base station can be ensured.

Drawings

Fig. 1 is a first schematic structural diagram of an energy saving system of a base station according to an embodiment of the present invention;

fig. 2 is a first flowchart of a method for saving energy of a base station according to an embodiment of the present invention;

fig. 3 is a schematic flow chart of a base station energy saving method according to an embodiment of the present invention;

fig. 4 is a third schematic flowchart of a base station energy saving method according to an embodiment of the present invention;

fig. 5 is a schematic flow chart of a base station energy saving method according to an embodiment of the present invention;

fig. 6 is a schematic flow chart of a base station energy saving method according to an embodiment of the present invention;

fig. 7 is a flowchart illustrating a sixth method for saving energy of a base station according to an embodiment of the present invention;

fig. 8 is a seventh flowchart illustrating a method for saving energy of a base station according to an embodiment of the present invention;

fig. 9 is a schematic flowchart of an energy saving method for a base station according to an embodiment of the present invention;

fig. 10 is a flowchart illustrating a method for saving energy of a base station according to an embodiment of the present invention;

fig. 11 is a first schematic structural diagram of an energy saving device of a base station according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a base station energy saving device according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a base station energy saving device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, "/" means "or" unless otherwise specified, for example, a/B may mean a or B. "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Further, "at least one" or "a plurality" means two or more. The terms "first", "second", and the like do not necessarily limit the number and execution order, and the terms "first", "second", and the like do not necessarily limit the difference.

The base station energy saving method provided by the embodiment of the invention can be suitable for the base station energy saving system of an operator. Fig. 1 shows a schematic structural diagram of the base station energy saving system. As shown in fig. 1, the base station energy saving system 10 includes a base station energy saving device 11 and a base station management apparatus 12. The base station energy saving device 11 is connected to the base station energy saving device 12. The base station energy saving apparatus 11 and the base station management device 12 may be connected in a wired manner or in a wireless manner, which is not limited in the embodiment of the present invention.

The base station energy saving apparatus 11 may be configured to perform data interaction with the base station management device 12, for example, the base station energy saving apparatus 11 may acquire parameters (the number of UEs, the azimuth beam width, and the like) of a beam in a base station where the base station management device 12 is located from the base station management device 12, and send an instruction to turn off the beam or migrate the UE to the base station management device 12.

The base station management device 12 may be located in a base station, or may not be located in any base station, and the base station management device 12 may perform signaling interaction with multiple base stations, so as to turn off any beam in the multiple base stations, or may be used to adjust an azimuth angle and a beam width of any beam in the multiple base stations.

It should be noted that the base station energy saving apparatus 11 and the base station management device 12 may be independent devices, or may be integrated into the same device, and the present invention is not limited to this.

When the base station energy saving device 11 and the base station management apparatus 12 are integrated into the same apparatus, the communication mode between the base station energy saving device 11 and the base station management apparatus 12 is communication between internal modules of the apparatus. In this case, the communication flow between the base station energy saving device 11 and the base station management apparatus 12 is the same as the "communication flow between the two when they are independent of each other".

In the following embodiments provided by the present invention, the present invention is described by taking an example in which the base station energy saving device 11 and the base station management apparatus 12 are set independently of each other.

The following describes an energy saving method for a base station according to an embodiment of the present invention with reference to the accompanying drawings.

As shown in fig. 2, the method for saving energy of a base station according to the embodiment of the present invention includes steps S201 to S205:

s201, the base station energy saving device 11 determines a beam to be turned off.

The number of the user equipment UE in the beam to be turned off is smaller than a first threshold value in a preset time period, or the weak coverage rate of the beam to be turned off in the preset time period is larger than or equal to a second threshold value.

As a first possible implementation manner, the base station energy saving device 11 obtains, from the base station management device 12, the number of the user equipments UE in any one beam in a preset time period, and determines whether the obtained number of the UEs is smaller than a first threshold. And if the number of the UE is smaller than a first threshold value, determining that any beam is a beam to be switched off.

It should be noted that any one of the beams is any one of the beams in any base station in the preset area. The first threshold value may be set in advance in the base station energy saving device 11 by an operation and maintenance person of the base station energy saving system.

As a second possible implementation manner, the base station energy saving device 11 may further determine whether any one beam is a beam to be turned off according to whether the weak coverage rate of the any one beam in a preset time period is greater than or equal to a second threshold.

Wherein the weak coverage of the beam reflects a fraction of the UEs in the weak coverage area in the coverage area of the beam.

It should be noted that the second threshold and the preset time period may be set in the base station energy saving device 11 by operation and maintenance personnel in advance.

In the second implementation manner in this step, the implementation manner of determining the weak coverage of any one beam in the preset time period may refer to the subsequent description of the embodiment of the present invention, and details are not repeated here.

S202, the base station energy saving device 11 determines at least one first beam having a co-coverage relationship with the beam to be turned off.

As a possible implementation manner, the base station energy saving apparatus 11 obtains, from the base station management device 12, the identifier of all beams in the base station where the beam to be turned off is located and the adjacent base stations and the common coverage parameter.

It should be noted that the identifier of a beam may be formed by an identifier of a base station where the beam is located and a number of the beam, and is used to uniquely identify the beam. The common coverage parameters of a beam include the latitude and longitude of the base station where the beam is located, the azimuth angle of the beam, the beam width of the beam, the number of times of switching between the beam and other beams, and the like.

Further, the base station energy saving device 11 may determine, according to the obtained identifiers of all beams and the common coverage parameters of all beams, at least one first beam having a common coverage relationship with the beam to be turned off.

The implementation manner of this step may specifically refer to the following description of the embodiment of the present invention, and is not described herein again.

In one case, the base station power saving device 11 periodically updates at least one first beam having a co-coverage relationship with the beam to be turned off.

It will be appreciated that a first beam having a co-coverage relationship with the beam to be switched off indicates that the first beam has a common coverage area with the beam to be switched off.

S203, the base station energy saving device 11 determines whether there is a first target beam in the at least one first beam.

The weak coverage of the first target beam in the preset time period is smaller than a third threshold, and the beam weight of the first target beam is the maximum value of the beam weight of the at least one first beam. The beam weight of the first beam is positively correlated with the correlation degree of the first beam and the beam to be turned off, and the beam weight of the first beam is negatively correlated with the weak coverage rate of the first target beam in a preset time period. The correlation degree of the first beam and the beam to be turned off is used for reflecting the overlapping coverage between the first beam and the beam to be turned off.

As a possible implementation manner, the base station energy saving device 11 determines a weak coverage rate of each of the at least one first beam in a preset time period, and a correlation degree of each first beam with the beam to be turned off.

In this step, the specific implementation of determining the weak coverage of the first beam in the preset time period may refer to the above S201 and the subsequent detailed description in the embodiment of the present invention, and details are not repeated here. The specific implementation of determining the correlation between the first beam and the beam to be turned off in this step may refer to the subsequent description of the embodiment of the present invention, and is not described herein again.

Further, the base station energy saving device 11 calculates a beam weight of each first beam according to the weak coverage of at least one first wave speed in a preset time period and the correlation between each first beam and the beam to be correlated.

The specific implementation of calculating the beam weight of the first beam in this step may refer to the following description of the embodiment of the present invention, and is not described herein again.

Finally, the base station energy saving device 11 determines whether a first target beam meeting the above condition exists in at least one first beam according to the weak coverage of each first beam in a preset time period and the beam weight of each beam.

In the above conditions, the third threshold may be set in the base station energy saving device 11 by operation and maintenance personnel in advance.

S204, if there is a first target beam in the at least one first beam, the base station energy saving device 11 turns off the beam to be turned off.

As a possible implementation manner, the base station energy saving device 11 sends a shutdown instruction to the base station management apparatus 12 in a case where the first target beam exists in the at least one first beam.

The turn-off instruction includes an identifier of the beam to be turned off, and the turn-off instruction is used to instruct the base station management device 12 to send the turn-off instruction to the base station where the beam to be turned off is located, so that the base station where the beam to be turned off is located turns off the beam to be turned off.

S205, the base station energy saving device 11 migrates the UE in the beam to be turned off to the first target beam.

As a possible implementation manner, the turn-off instruction further includes an identifier of the first target beam, and the turn-off instruction is specifically further configured to instruct the base station management device 12 to send a migration instruction to the base station where the beam to be turned off is located, so that the base station where the beam to be turned off is located migrates all UEs in the beam to be turned off to the first target beam after the beam to be turned off is turned off.

In one design, in a case that there is no first target beam in at least one first beam, as shown in fig. 3, the method for saving power for a base station according to an embodiment of the present invention, after S203, further includes the following steps S301 to S306:

s301, if the first target beam does not exist in the at least one first beam, the base station energy saving device 11 determines whether at least one second beam exists in the first base station.

The first base station is a base station where the beam to be turned off is located. The second beam is a beam satisfying the first condition in the first base station except for the beam to be turned off. The first condition includes: the weak coverage rate of the second beam in the preset time period is smaller than a fourth threshold, and the difference value of the azimuth angle of the second beam and the azimuth angle of the beam to be switched off is within a first preset range.

As a possible implementation, the base station energy saving means 11 determines all beams within the first base station except the beam to be switched off.

Further, the base station energy saving device 11 obtains the determined azimuth angles of all beams, the weak coverage rates of all beams in a preset time period, and the azimuth angles of the beams to be turned off.

The weak coverage of any one beam in the preset time period is obtained in this step, which may refer to the description of S201 and the subsequent description of the embodiments of the present invention, and is not described herein again.

Finally, the base station energy saving device 11 determines whether at least one second beam in all the beams satisfies the first condition according to the acquired azimuth angle of each beam, the azimuth angle of the beam to be turned off, and the weak coverage of each beam.

It should be noted that the fourth threshold and the first preset range may be set in the base station energy saving device 11 by operation and maintenance personnel in advance.

S302, if there is at least one second beam in the first base station, the base station energy saving device 11 calculates an absolute value of a difference between an azimuth of each second beam in the at least one second beam and an azimuth to be turned off.

S303, the base station energy saving device 11 determines, according to the calculated absolute value, a second beam with the smallest absolute value from the at least one second beam as a second target beam.

S304, the base station energy saving device 11 adjusts the azimuth angle and the beam width of the second target beam.

As a possible implementation manner, the base station energy saving device 11 acquires an azimuth angle and a beam width of the second target beam and an azimuth angle and a beam width of the beam to be turned off, and determines the azimuth angle and the beam width of the adjusted second target beam according to the acquired azimuth angle and the beam width of the second target beam and the azimuth angle and the beam width of the beam to be turned off.

The specific implementation manner of this step may refer to the following detailed description of the embodiment of the present invention, and is not described herein again.

S305, the base station energy saving device 11 turns off the beam to be turned off.

For the implementation of this step, reference may be specifically made to the description of S204, which is not described herein again.

S306, the base station energy saving device 11 migrates the UE in the beam to be turned off to the adjusted second target beam.

The specific implementation of this step may specifically refer to the description of S205, which is not described herein again, but the difference is that the beam to be migrated by the receiving UE is different.

In one case, if the base station energy saving device 11 determines that there is no first beam having a co-coverage relationship with the beam to be turned off, the above S301 to S306 and the subsequent steps are also performed.

In one design, in order to enable migration of UEs in a beam to be turned off when any second beam does not exist in a first base station, as shown in fig. 3, the method for saving power for a base station according to an embodiment of the present invention further includes, after S301, the following S401-S406:

s401, if there is not at least one second beam in the first base station, the base station energy saving device 11 determines that there is at least one candidate base station.

And the weak coverage rate of the at least one candidate base station in the preset time period is smaller than a fifth threshold, and the distance between the at least one candidate base station and the first base station is smaller than a sixth threshold and is a minimum value. As a possible implementation, the base station energy saving device 11 determines a plurality of neighboring base stations of the first base station, and determines a weak coverage rate of each of the plurality of neighboring base stations and a distance between each of the neighboring base stations and the first base station.

It should be noted that the weak coverage of any one neighboring base station may specifically be an average value of the weak coverage of all beams in the neighboring base station. The distance between any two base stations can be obtained by the base station energy saving device 11 obtaining the longitude and latitude of any two base stations from the base station management device 12 and calculating according to the longitude and latitude of any two base stations.

Further, the base station energy saving device 11 determines whether at least one candidate base station satisfying the above condition exists in the plurality of adjacent base stations according to the weak coverage of each of the plurality of adjacent base stations and the distance between each of the plurality of adjacent base stations and the first base station.

The fifth threshold and the sixth threshold may be set in advance by the operation and maintenance staff in the base station energy saving device 11.

In one case, in the determination result of this step, if there is no candidate base station in the neighboring base stations, it indicates that the beam to be turned off does not have the turn-off condition, the base station energy saving device 11 re-determines a new beam to be turned off, and re-executes the above S201 to S205 and other steps in this embodiment of the present invention.

S402, the base station energy saving device 11 determines a second base station from at least one candidate base station.

The distance between the second base station and the first base station is the minimum value of at least one target distance, and the target distance is the distance between the candidate base station and the first base station.

S403, the base station energy saving device 11 determines the beam in the second base station as at least one third beam, and determines a third target beam from the at least one third beam.

Wherein the third beam is a beam within the second base station. The correlation degree between the third target beam and the beam to be turned off is the maximum value of the correlation degrees between each third beam in the at least one third beam and the beam to be turned off, or the absolute value of the difference between the azimuth angle of the third target beam and the azimuth angle of the beam to be turned off is the minimum value of the absolute values of the difference between the azimuth angle of each third beam in the at least one third beam and the azimuth angle of the beam to be turned off. The correlation degree of the third beam and the beam to be turned off is used for reflecting the overlapping coverage between the third beam and the beam to be turned off.

As a first possible implementation, the base station energy saving device 11 determines all beams in the second base station to be at least one third beam.

Further, the base station energy saving device 11 determines an azimuth angle of each beam of the at least one third beam and an azimuth angle of the beam to be turned off, and calculates an absolute value of a difference between the azimuth angle of each third beam and the azimuth angle of the beam to be turned off.

Finally, the base station energy saving device 11 determines a third target beam from at least one third beam according to the absolute value of the calculated difference.

It will be appreciated that the minimum of the absolute values of the difference between the azimuth of each third beam and the azimuth of the beam to be switched off reflects the closest coverage direction of the third target beam to the beam to be switched off.

As a second possible implementation manner, after determining at least one third beam, the base station energy saving device 11 determines a correlation degree between each third beam and the beam to be turned off.

In this step, an implementation manner of determining a correlation degree between the third beam and the beam to be turned off may specifically refer to the subsequent description of the embodiment of the present invention, and details are not described here again.

Further, the base station energy saving device 11 determines a third target beam from at least one third beam according to the correlation between each determined third beam and the beam to be turned off.

It should be noted that the third target beam has the highest correlation with the beam to be turned off, which indicates that the third target beam and the beam to be turned off have the largest coverage in the at least one third beam.

S404, the base station energy saving device 11 adjusts the azimuth angle and the beam width of the third target beam.

For a specific implementation of this step, reference may be made to the above-mentioned S304 and the following detailed description of the embodiment of the present invention, which are not described herein again.

S405, the base station energy saving device 11 turns off the beam to be turned off.

For a specific implementation of this step, reference may be made to the description of S204 provided in the embodiment of the present invention, and details are not described here again.

S406, the base station energy saving device 11 migrates the UE in the beam to be turned off to the adjusted third target beam.

The specific implementation of this step may refer to the description of S205 provided in this embodiment of the present invention, and is not described herein again. The difference is that the beam of the UE receiving the beam to be switched off is different.

In one design, in order to determine the weak coverage of the beam in the case that the beam to be turned off is determined by the weak coverage, as shown in fig. 4, the method for saving energy for a base station provided by the embodiment of the present invention may include the following steps S501 to S503.

S501, the base station energy saving device 11 obtains the number of the at least one first UE and the signal strength in the first preset beam measured by the at least one first UE in a preset time period.

Wherein the at least one first UE includes a UE accessing a first preset beam within a preset time period. The first preset beam comprises a beam to be turned off, a second beam and each beam in at least one candidate base station.

As a possible implementation manner, the base station energy saving apparatus 11 obtains, from the base station management device 12, the number of the at least one first UE in the first preset beam and the signal strength of the at least one first UE in the first preset beam.

It should be noted that the signal strength of the UE in the beam may be represented by Reference Signal Receiving Quality (RSRQ) or Reference Signal Receiving Power (RSRP), and the subsequent signal strength of the present invention may be set according to this. The signal strength of the first UE in the first preset beam may specifically be the signal strength of the first preset beam in a measurement report periodically reported by the first UE.

S502, the base station energy saving device 11 determines at least one first target UE from the at least one first UE.

And the signal intensity of the first preset beam measured by the first target UE in the preset time period is smaller than a seventh threshold value.

As a possible implementation manner, the base station energy saving device 11 determines, from the at least one first UE, the UE whose signal strength is smaller than the seventh threshold as the at least one first target UE, and may further determine the number of the at least one first target UE.

It should be noted that, if the signal strength of the UE in the first preset beam is smaller than the seventh threshold, it indicates that the UE is located in the thin coverage area of the first preset beam. The seventh threshold may be set in advance in the base station energy saving device 11 by operation and maintenance personnel.

S503, the base station energy saving device 11 determines that the ratio of the number of the at least one first target UE to the number of the at least one first UE is the weak coverage of the first preset beam.

In one design, in order to determine at least one first beam that has a co-coverage relationship with a beam to be turned off, as shown in fig. 5, S202 provided in this embodiment of the present invention may include the following S2021-S2023.

S2021, the base station energy saving device 11 determines at least one third base station.

And the distance between the third base station and the first base station is smaller than an eighth threshold, and the first base station is a base station where the beam to be turned off is located.

As a possible implementation manner, the base station energy saving device 11 obtains the longitude and latitude of each of the multiple adjacent base stations of the first base station and the longitude and latitude of the first base station from the base station management device 12, calculates the distance between each adjacent base station and the first base station according to the obtained longitude and latitude, and determines a third base station, whose distance from the first base station is smaller than the eighth threshold, from the multiple adjacent base stations.

Note that the eighth threshold may be set in the base station energy saving device 11 by operation and maintenance personnel in advance.

S2022, the base station energy saving device 11 calculates a difference between an azimuth of the at least one fourth beam and an azimuth of the beam to be turned off.

Wherein the at least one fourth beam is a beam configured by the at least one third base station.

As a possible implementation manner, the base station energy saving device 11 determines, from the base station management device 12, that a beam included in at least one third base station is at least one fourth beam, and obtains an azimuth angle of the at least one fourth beam from the base station management device 12, and further calculates a difference between the azimuth angle of each fourth beam and the azimuth angle of the beam to be turned off.

S2023, the base station energy saving device 11 determines at least one first beam from the at least one fourth beam according to the calculated at least one difference.

And the difference value of the azimuth angle of at least one first beam and the azimuth angle of the beam to be switched off is positioned in a second preset range.

As a possible implementation manner, the base station energy saving device 11 determines, from the at least one fourth beam, the beam whose azimuth angle difference value satisfies the second preset range as the at least one first beam.

It should be noted that the second preset range may be set in the base station energy saving device 11 by an operation and maintenance person in advance.

In the second design, in order to determine at least one first beam having a co-coverage relationship with the beam to be turned off, as shown in fig. 6, S202 in the embodiment of the present invention may also include S2024-S2026:

s2024, the base station energy saving device 11 determines a correlation between the beam to be turned off and a second preset beam.

Wherein the second preset beam is any beam except the beam to be turned off.

As a possible implementation manner, the base station energy saving device 11 determines the correlation between the beam to be turned off and the second preset beam according to the signal quality of the beam to be turned off and the second preset beam measured by the same UE.

The specific implementation manner of this step may also refer to the following description of the embodiment of the present invention, and is not described herein again.

S2025, the base station energy saving device 11 determines whether the correlation between the beam to be turned off and the second preset beam is greater than or equal to a ninth threshold.

Note that the ninth threshold may be set in the base station energy saving device 11 by operation and maintenance personnel in advance.

S2026, if the correlation between the beam to be turned off and the second preset beam is greater than or equal to the ninth threshold, the base station energy saving device 11 determines that the second preset beam is the first beam.

Optionally, in order to determine the correlation between two beams, as shown in fig. 7, the method for saving energy of a base station according to the embodiment of the present invention further includes following steps S601 to S607.

S601, the base station energy saving device 11 obtains the number of at least one second UE, the signal strength of the beam to be turned off measured by the at least one second UE in a preset time period, and the signal strength of the second preset beam measured by the at least one second UE in the preset time period.

And at least one second UE is a UE in the beam to be switched off. The at least one second UE is a UE within the beam to be switched off. As a possible implementation manner, the base station energy saving apparatus 11 obtains, from the base station management device 12, the number of the at least one second UE, the signal strength of the beam to be turned off measured by the at least one second UE in the preset time period, and the signal strength of the second preset beam measured by the at least one second UE in the preset time period.

S602, the base station energy saving device 11 determines at least one second target UE from at least one second UE.

And the mean value of a plurality of first difference values of the second target UE in a preset time period is smaller than a tenth threshold. The first difference is a difference between the signal intensity of the beam to be turned off and the signal intensity of the second preset beam measured by the second target UE at the same preset time point within a preset time period.

As a possible implementation manner, the base station energy saving device 11 calculates a mean value of a plurality of first difference values of at least one second target UE in a preset time period according to the signal strength of the beam to be turned off measured by the at least one second UE in the preset time period and the signal strength of the second preset beam measured by the at least one second UE in the preset time period, further determines the at least one second target UE whose mean value of the first difference values is smaller than a tenth threshold value from the at least one second UE, and finally determines the number of the at least one second target UE in the at least one second UE.

It should be noted that the tenth threshold may be set in the base station energy saving device 11 by operation and maintenance personnel in advance.

S603, the base station energy saving device 11 determines that a ratio of the number of the at least one second target UE to the number of the at least one second UE is a first correlation coefficient.

S604, the base station energy saving device 11 obtains the number of the at least one third UE, the signal strength of the second preset beam measured by the at least one third UE in a preset time period, and the signal strength of the beam to be turned off measured by the at least one third UE in the preset time period.

Wherein the at least one third UE is a UE within the second preset beam.

It should be noted that, for a specific implementation manner of this step, reference may be made to the description in S601, and details are not described here.

S605, the base station energy saving device 11 determines at least one third target UE from the at least one third UE.

And the mean value of a plurality of second difference values of the third target UE in the preset time period is smaller than a tenth threshold. The second difference is a difference between the signal intensity of the second preset beam and the signal intensity of the beam to be turned off, which are measured by the third target UE at the same preset time point within the preset time period.

It should be noted that, for a specific implementation manner of this step, reference may be made to the description in S602, and details are not described here again.

S606, the base station energy saving device 11 determines that the ratio of the number of the at least one third target UE to the number of the at least one third UE is a second correlation coefficient.

S607, the base station energy saving device 11 determines an average value of the first correlation coefficient and the second correlation coefficient, which is a correlation between the beam to be turned off and the second preset beam.

In the third design, in order to determine at least one first beam having a co-coverage relationship with a beam to be turned off, as shown in fig. 8, S202 in the embodiment of the present invention may also include S2027-S2029:

s2027, the base station energy saving device 11 determines the number of times of switching between the beam to be turned off and a third preset beam.

The switching times include the sum of the times that at least one second UE transfers from a beam to be turned off to a third preset beam within a preset time period and the times that at least one fourth UE transfers from the third preset beam to the beam to be turned off within the preset time period. The at least one second UE is a UE in a beam to be turned off, and the fourth UE is a UE in a third preset beam. The third preset beam is any one beam except the beam to be turned off.

As a possible implementation manner, the base station energy saving apparatus 11 obtains, from the base station management device 12, the number of times that the second UE migrates from the beam to be turned off to the third preset beam within the preset time period, and the number of times that the fourth UE migrates from the third preset beam to the beam to be turned off within the preset time period, and calculates the number of times of switching between the beam to be turned off and the third preset beam.

S2028, the base station energy saving device 11 determines whether the number of times of switching is greater than or equal to an eleventh threshold.

Note that the eleventh threshold may be set in advance in the base station energy saving device 11 by an operation and maintenance person.

S2029, if the number of times of handover is greater than or equal to the eleventh threshold, the base station energy saving device 11 determines that the third preset beam is the first beam.

It is understood that the base station energy saving device 11 may further determine at least one first beam from the plurality of preset beams after determining that the third preset beam has the common coverage with the beam to be turned off.

In one design, in order to calculate a beam weight of a first beam, as shown in fig. 9, the method for saving energy of a base station according to the embodiment of the present invention further includes S701 to S702.

S701, the base station energy saving device 11 determines a correlation between the beam to be turned off and the at least one first beam and a weak coverage rate of the at least one first beam in a preset time period.

The specific implementation manner of this step may refer to S501 to S504 described above in the embodiments of the present invention, and details are not described here.

S702, the base station energy saving device 11 calculates a beam weight of at least one first beam according to a correlation between a beam to be turned off and the at least one first beam and a weak coverage of the at least one first beam in a preset time period.

Wherein, the beam weight of at least one first beam satisfies the following formula one:

W＝λ₁×P+λ₂formula I

Wherein W is the beam weight of any one of the at least one first beam, λ₁Is a first weight, P is a correlation degree between the beam to be switched off and any one of the at least one first beam, λ₂And C is the weak coverage rate of any one of the at least one first beam in a preset time period.

It should be noted that the first weight and the second weight may be set in the base station energy saving device 11 by an operation and maintenance worker in advance.

In one design, to adjust the azimuth angle and the beam width of the second target beam and to adjust the azimuth angle and the beam width of the third target beam, as shown in fig. 10, the method for saving energy of a base station according to an embodiment of the present invention further includes S801 to S803:

s801, the base station energy saving device 11 obtains an azimuth angle of the beam to be turned off, a beam width of the beam to be turned off, an azimuth angle of a fourth preset beam, and a beam width of the fourth preset beam.

And the fourth preset beam is the second target beam or the third target beam.

As a possible implementation manner, the base station energy saving device 11 may obtain an azimuth angle of the beam to be turned off, a beam width of the beam to be turned off, an azimuth angle of the fourth preset beam, and a beam width of the fourth preset beam from the base station management apparatus 12.

S802, the base station energy saving device 11 calculates an adjusted azimuth angle of the fourth preset beam according to the azimuth angle of the beam to be turned off, the beam width of the beam to be turned off, the azimuth angle of the fourth preset beam, and the beam width of the fourth preset beam.

Wherein, the azimuth angle of the fourth preset beam after adjustment satisfies the following formula two:

β ═ 2+ (B + B/2)2 equation two

Wherein β is an azimuth angle of the fourth preset beam after adjustment, a is an azimuth angle of the beam to be turned off, a is a beam width of the beam to be turned off, B is an azimuth angle of the second target beam, and B is a beam width of the fourth preset beam.

S803, the base station energy saving device 11 calculates the adjusted beam width of the fourth preset beam according to the azimuth of the beam to be turned off, the beam width of the beam to be turned off, the azimuth of the fourth preset beam, and the beam width of the fourth preset beam.

Wherein the adjusted beam width of the fourth preset beam satisfies the following formula three:

l ═ B + B/2) - (a-a/2) formula three

Wherein L is the adjusted beam width of the fourth preset beam, a is the azimuth angle of the beam to be turned off, a is the beam width of the beam to be turned off, B is the azimuth angle of the fourth preset beam, and B is the beam width of the fourth preset beam.

On the other hand, when the first target beam having the same coverage relation with the beam to be switched off does not exist, a second target beam or a third target beam is further determined, and the azimuth angle and the beam width of the second target beam or the third target beam are adjusted. And turning off the beam to be turned off, and migrating the UE in the beam to be turned off to the adjusted second target beam or third target beam. Through dynamic adjustment of the second target beam or the third target beam and the azimuth angle and the width of the beam, the beam with the same coverage relation is constructed for the beam to be switched off, so that after the beam to be switched off is switched off, the UE in the switched-off beam can be successfully transferred to the second target beam or the third target beam, and the normal access of the UE in the energy-saving process of the base station can be ensured.

The scheme provided by the embodiment of the invention is mainly introduced from the perspective of a method. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiment of the present invention, the base station energy saving device may be divided into the functional modules according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

Fig. 10 is a schematic structural diagram of an energy saving device of a base station according to an embodiment of the present invention. As shown in fig. 10, the base station energy saving apparatus 11 is used for ensuring normal access of the user equipment UE during the energy saving process of the base station, for example, for executing the base station energy saving method shown in fig. 2. The base station energy saving device 11 includes a determination unit 111, a shutdown unit 112, and a migration unit 113.

A determining unit 111, configured to determine a beam to be turned off. The number of the User Equipment (UE) in the beam to be turned off is smaller than a first threshold value within a preset time period, or the weak coverage rate of the beam to be turned off within the preset time period is larger than or equal to a second threshold value.

The determining unit 111 is further configured to determine at least one first beam having a co-coverage relationship with the beam to be turned off.

A turning-off unit 112, configured to turn off a beam to be turned off if there is a first target beam in the at least one first beam. The weak coverage of the first target beam in the preset time period is smaller than a third threshold, and the beam weight of the first target beam is the maximum value of the beam weight of the at least one first beam. The beam weight of the first beam is positively correlated with the correlation degree of the first beam and the beam to be turned off, and the beam weight of the first beam is negatively correlated with the weak coverage rate of the first beam in a preset time period. The correlation degree of the first beam and the beam to be turned off is used for reflecting the overlapping coverage between the first beam and the beam to be turned off.

A migration unit 113, configured to migrate the UE in the beam to be turned off to the first target beam.

Optionally, as shown in fig. 11, the base station energy saving device according to the embodiment of the present invention further includes a determining unit 114, a calculating unit 115, and an adjusting unit 116:

the determining unit 114 is configured to determine whether at least one second beam exists in the first base station if the first target beam does not exist in the at least one first beam. The first base station is a base station where the beam to be turned off is located. The second beam is a beam satisfying the first condition in the first base station except for the beam to be turned off. The first condition includes: the weak coverage rate of the second beam in the preset time period is smaller than a fourth threshold, and the difference value of the azimuth angle of the second beam and the azimuth angle of the beam to be switched off is within a first preset range.

The calculating unit 115 is configured to calculate an absolute value of a difference between an azimuth of each of the at least one second beam and an azimuth to be turned off if at least one second beam exists in the first base station.

The determining unit 111 is further configured to determine, according to the calculated absolute value, a second beam with a smallest absolute value from the at least one second beam as a second target beam.

The adjusting unit 116 is configured to adjust an azimuth angle and a beam width of the second target beam.

A turn-off unit 112, configured to turn off the beam to be turned off.

The migration unit 113 is further configured to migrate the UE in the beam to be turned off to the adjusted second target beam.

Optionally, as shown in fig. 11, the determining unit 111 provided in the embodiment of the present invention is further configured to determine that at least one candidate base station exists if at least one second beam does not exist in the first base station. The weak coverage rate of the at least one candidate base station in the preset time period is smaller than a fifth threshold value, and the distance between the at least one candidate base station and the first base station is smaller than a sixth threshold value. And determining a second base station from the at least one candidate base station, wherein the distance between the second base station and the first base station is the minimum value of at least one target distance, and the target distance is the distance between the candidate base station and the first base station.

The determining unit 111 is further configured to determine the beam in the second base station as at least one third beam, and determine a third target beam from the at least one third beam. The correlation degree between the third target beam and the beam to be turned off is the maximum value of the correlation degrees between each third beam in the at least one third beam and the beam to be turned off, or the absolute value of the difference between the azimuth angle of the third target beam and the azimuth angle of the beam to be turned off is the minimum value of the absolute values of the difference between the azimuth angle of each third beam in the at least one third beam and the azimuth angle of the beam to be turned off. The correlation degree of the third beam and the beam to be turned off is used for reflecting the overlapping coverage between the third beam and the beam to be turned off.

The adjusting unit 116 is further configured to adjust an azimuth angle and a beam width of the third target beam.

And the turning-off unit 112 is further configured to turn off the beam to be turned off.

The migration unit 113 is further configured to migrate the UE in the beam to be turned off to the adjusted third target beam.

Optionally, as shown in fig. 11, the base station energy saving apparatus provided in the embodiment of the present invention further includes an obtaining unit 117.

An obtaining unit 117, configured to obtain the number of the at least one first UE and a signal strength of a first preset beam measured by the at least one first UE in a preset time period. The at least one first UE includes a UE accessing a first preset beam for a preset time period. The first preset beam comprises a beam to be turned off, a second beam and each beam in at least one candidate base station.

A determining unit 111, configured to determine at least one first target UE from the at least one first UE. And the signal intensity of the first preset beam measured by the first target UE in the preset time period is smaller than the seventh threshold value.

The determining unit 111 is further configured to determine that a ratio of the number of the at least one first target UE to the number of the at least one first UE is the weak coverage of the first preset beam.

Optionally, as shown in fig. 11, the determining unit 111 provided in the embodiment of the present invention is specifically configured to:

at least one third base station is determined. And the distance between the third base station and the first base station is smaller than an eighth threshold, and the first base station is the base station where the beam to be turned off is located.

A difference between the azimuth of the at least one fourth beam and the azimuth of the beam to be switched off is calculated. The at least one fourth beam is a beam configured by the at least one third base station.

At least one first beam is determined from at least one fourth beam based on the calculated at least one difference. The difference value of the azimuth angle of at least one first beam and the azimuth angle of the beam to be switched off is within a second preset range.

Optionally, as shown in fig. 11, the determining unit 111 provided in the embodiment of the present invention is further specifically configured to:

and determining the correlation degree of the beam to be switched off and the second preset beam. The second preset beam is any beam except the beam to be turned off.

And if the correlation degree between the beam to be switched off and the second preset beam is greater than or equal to a ninth threshold value, determining the second preset beam as the first beam.

An obtaining unit 117, configured to obtain the number of the at least one second UE, the signal strength of the beam to be turned off measured by the at least one second UE in a preset time period, and the signal strength of the second preset beam measured by the at least one second UE in the preset time period. The at least one second UE is a UE within the beam to be switched off. The second predetermined beam is any one of the second predetermined beam or the third beam.

A determining unit 111, configured to determine at least one second target UE from the at least one second UE. And the mean value of a plurality of first difference values of the second target UE in the preset time period is smaller than a tenth threshold value. The first difference is a difference between the signal intensity of the beam to be turned off and the signal intensity of the second preset beam measured by the second target UE at the same preset time point within a preset time period.

The determining unit 111 is further configured to determine a ratio of the number of the at least one second target UE to the number of the at least one second UE as the first correlation coefficient.

The obtaining unit 117 is further configured to obtain the number of the at least one third UE, the signal strength of the second preset beam measured by the at least one third UE in a preset time period, and the signal strength of the beam to be turned off measured by the at least one third UE in the preset time period. The at least one third UE is a UE within the second preset beam.

A determining unit 111, further configured to determine at least one third target UE from the at least one third UE. And the mean value of a plurality of second difference values of the third target UE in the preset time period is smaller than the tenth threshold. The second difference is a difference between the signal intensity of the second preset beam and the signal intensity of the beam to be turned off, which are measured by the third target UE at the same preset time point within the preset time period.

The determining unit 111 is further configured to determine a ratio of the number of the at least one third target UE to the number of the at least one third UE as a second correlation coefficient.

The determining unit 111 is further configured to determine an average value of the first correlation coefficient and the second correlation coefficient, which is a correlation degree between the beam to be turned off and the second preset beam.

and determining the switching times between the beam to be switched off and a third preset beam. The switching times include the sum of the times that at least one second UE migrates from the beam to be turned off to a third preset beam within a preset time period and the times that at least one fourth UE migrates from the third preset beam to the beam to be turned off within the preset time period. The at least one second UE is a UE in a beam to be turned off, and the at least one fourth UE is a UE in a third preset beam. The third preset beam is any one beam except the beam to be turned off.

And if the switching times are greater than or equal to an eleventh threshold value, determining the third preset beam as the first beam.

Optionally, as shown in fig. 11, the base station energy saving device provided in the embodiment of the present invention further includes a calculating unit 115.

The determining unit 111 is further configured to determine a correlation between the beam to be turned off and the at least one first beam and a weak coverage rate of the at least one first beam within a preset time period.

The calculating unit 115 is further configured to calculate a beam weight of the at least one first beam according to the correlation between the beam to be turned off and the at least one first beam and the weak coverage of the at least one first beam in a preset time period. The beam weight value of at least one first beam satisfies the following formula one:

W＝λ₁×P+λ₂formula I

Wherein W is the beam weight of any one of the at least one first beam, λ₁Is a first weight, P is the correlation degree between the beam to be switched off and any one of the at least one first beam, lambda₂C is the weak coverage rate of any one of the at least one first beam within a preset time period.

An obtaining unit 117, configured to obtain an azimuth angle of the beam to be turned off, a beam width of the beam to be turned off, an azimuth angle of a fourth preset beam, and a beam width of the fourth preset beam. The fourth preset beam is the second target beam or the third target beam.

The calculating unit 115 is further configured to calculate an adjusted azimuth angle of the fourth preset beam according to the azimuth angle of the beam to be turned off, the beam width of the beam to be turned off, the azimuth angle of the fourth preset beam, and the beam width of the fourth preset beam. The azimuth angle of the adjusted fourth preset beam satisfies the following formula two:

β ═ 2+ (B + B/2)2 equation two

Wherein β is an azimuth angle of the fourth preset beam after adjustment, a is an azimuth angle of the beam to be turned off, a is a beam width of the beam to be turned off, B is an azimuth angle of the fourth preset beam, and B is a beam width of the fourth preset beam.

The calculating unit 115 is further configured to calculate the adjusted beam width of the fourth preset beam according to the azimuth angle of the beam to be turned off, the beam width of the beam to be turned off, the azimuth angle of the fourth preset beam, and the beam width of the fourth preset beam. The adjusted beam width of the fourth preset beam satisfies the following formula three:

l ═ B + B/2) - (a-a/2) formula three

In the case of implementing the functions of the integrated modules in the form of hardware, the embodiment of the present invention provides another possible structural schematic diagram of the base station energy saving apparatus in the foregoing embodiment. As shown in fig. 12, a base station energy saving apparatus 90 is used for ensuring normal access of a user equipment UE during the energy saving process of a base station, for example, for performing the base station energy saving method shown in fig. 2. The base station energy saving device 90 includes a processor 901, a memory 902, and a bus 903. The processor 901 and the memory 902 may be connected by a bus 903.

The processor 901 is a control center of the communication apparatus, and may be a single processor or a collective term for a plurality of processing elements. For example, the processor 901 may be a Central Processing Unit (CPU), other general-purpose processors, or the like. Wherein a general purpose processor may be a microprocessor or any conventional processor or the like.

For one embodiment, the processor 901 may include one or more CPUs, such as CPU 0 and CPU 1 shown in fig. 12.

The memory 902 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

As a possible implementation, the memory 902 may be separate from the processor 901, and the memory 902 may be connected to the processor 901 via the bus 903 for storing instructions or program code. The processor 901 can implement the base station energy saving method provided by the embodiment of the present invention when calling and executing the instructions or program codes stored in the memory 902.

In another possible implementation, the memory 902 may also be integrated with the processor 901.

The bus 903 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (enhanced Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 12, but this is not intended to represent only one bus or type of bus.

It is to be noted that the configuration shown in fig. 12 does not constitute a limitation of the base station power saving device 90. In addition to the components shown in fig. 12, the base station energy saving device 90 may include more or fewer components than shown, or combine certain components, or a different arrangement of components.

As an example, in conjunction with fig. 9, the determining unit 111, the shutdown unit 112, and the migration unit 113 in the base station energy saving apparatus implement the same functions as the processor 901 in fig. 12.

Optionally, as shown in fig. 12, the base station energy saving device 90 provided in the embodiment of the present invention may further include a communication interface 904.

A communication interface 904 for connecting with other devices through a communication network. The communication network may be an ethernet network, a radio access network, a Wireless Local Area Network (WLAN), etc. The communication interface 904 may include a receiving unit for receiving data and a transmitting unit for transmitting data.

In one design, in the base station energy saving device provided in the embodiment of the present invention, the communication interface may be further integrated in the processor.

Fig. 13 shows another hardware configuration of the base station power saving apparatus in the embodiment of the present invention. As shown in fig. 13, the base station energy saving device 100 may include a processor 1001 and a communication interface 1002. Processor 1001 is coupled to communication interface 1002.

The functions of the processor 1001 may refer to the description of the processor 901 above. The processor 1001 also has a memory function, and the function of the memory 902 can be referred to.

The communication interface 1002 is used to provide data to the processor 1001. The communication interface 1002 may be an internal interface of the communication device, or may be an external interface (corresponding to the communication interface 904) of the communication device.

It should be noted that the structure shown in fig. 13 does not constitute a limitation of the base station energy saving apparatus 100, and the base station energy saving apparatus 100 may include more or less components than those shown in fig. 13, or combine some components, or arrange different components.

Through the above description of the embodiments, it is clear for a person skilled in the art that, for convenience and simplicity of description, only the division of the above functional units is illustrated. In practical applications, the above function allocation can be performed by different functional units according to needs, that is, the internal structure of the device is divided into different functional units to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

The embodiment of the present invention further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed by a computer, the computer executes each step in the method flow shown in the above method embodiment.

Embodiments of the present invention provide a computer program product containing instructions that, when executed on a computer, cause the computer to perform the base station energy saving method in the above method embodiments.

The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, and a hard disk. Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM), registers, a hard disk, an optical fiber, a portable Compact disk Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium, in any suitable combination, or as appropriate in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the invention, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

Since the base station energy saving device, the computer-readable storage medium, and the computer program product in the embodiments of the present invention may be applied to the method described above, for technical effects obtained by the embodiments of the method, reference may also be made to the embodiments of the method described above, and details of the embodiments of the present invention are not repeated herein.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions within the technical scope of the present invention are intended to be covered by the scope of the present invention.

Claims

1. A method for saving energy of a base station is characterized by comprising the following steps:

determining a beam to be switched off; the number of User Equipment (UE) in the beam to be turned off is smaller than a first threshold value within a preset time period, or the weak coverage rate of the beam to be turned off within the preset time period is larger than or equal to a second threshold value;

determining at least one first beam having a co-coverage relationship with the beam to be switched off;

if a first target beam exists in the at least one first beam, turning off the beam to be turned off, and migrating the UE in the beam to be turned off to the first target beam; the weak coverage rate of the first target beam in the preset time period is less than a third threshold, and the beam weight of the first target beam is the maximum value of the beam weight of the at least one first beam; the beam weight of the first beam is positively correlated with the correlation degree of the first beam and the beam to be turned off, and the beam weight of the first beam is negatively correlated with the weak coverage rate of the first beam in the preset time period; the correlation degree of the first beam and the beam to be turned off is used for reflecting the overlapping coverage between the first beam and the beam to be turned off.

2. The base station power saving method of claim 1, wherein the method further comprises:

if the first target beam does not exist in the at least one first beam, judging whether at least one second beam exists in the first base station; the first base station is a base station where the beam to be turned off is located; the second beam is a beam which meets a first condition except the beam to be turned off in the first base station; the first condition includes: the weak coverage rate of the second beam in the preset time period is smaller than a fourth threshold, and the difference value between the azimuth angle of the second beam and the azimuth angle of the beam to be turned off is within a first preset range;

if the at least one second beam exists in the first base station, calculating an absolute value of a difference value between an azimuth angle of each second beam in the at least one second beam and the azimuth angle to be turned off;

determining a second beam with the minimum absolute value as a second target beam from the at least one second beam according to the calculated absolute value;

adjusting an azimuth angle and a beam width of the second target beam;

and turning off the beam to be turned off, and transferring the UE in the beam to be turned off to the adjusted second target beam.

3. The base station power saving method of claim 2, wherein the method further comprises:

determining that at least one candidate base station exists if the at least one second beam does not exist within the first base station; the weak coverage rate of the at least one candidate base station in the preset time period is smaller than a fifth threshold value, and the distance between the at least one candidate base station and the first base station is smaller than a sixth threshold value; determining a second base station from the at least one candidate base station, wherein the distance between the second base station and the first base station is the minimum value of at least one target distance, and the target distance is the distance between the candidate base station and the first base station;

determining a beam within the second base station as at least one third beam and determining a third target beam from the at least one third beam; the correlation between the third target beam and the beam to be turned off is the maximum value of the correlations between each third beam of the at least one third beam and the beam to be turned off, or the absolute value of the difference between the azimuth angle of the third target beam and the azimuth angle of the beam to be turned off is the minimum value of the absolute values of the differences between the azimuth angle of each third beam of the at least one third beam and the azimuth angle of the beam to be turned off; the correlation degree of the third beam and the beam to be turned off is used for reflecting the overlapping coverage between the third beam and the beam to be turned off;

adjusting an azimuth angle and a beam width of the third target beam;

and turning off the beam to be turned off, and transferring the UE in the beam to be turned off to the adjusted third target beam.

4. The base station power saving method of claim 3, wherein the method further comprises:

acquiring the number of at least one first UE and the signal intensity of a first preset beam measured by the at least one first UE in the preset time period; the at least one first UE comprises a UE accessing the first preset beam within the preset time period; the first preset beam comprises the beam to be turned off, the second beam and each beam in the at least one candidate base station;

determining at least one first target UE from the at least one first UE; the signal intensity of the first preset beam measured by the first target UE in the preset time period is smaller than a seventh threshold;

determining a ratio of the number of the at least one first target UE to the number of the at least one first UE as a weak coverage of the first preset beam.

5. The base station energy saving method according to any one of claims 1 to 3, wherein the determining at least one first beam having a co-coverage relationship with the beam to be turned off comprises:

determining at least one third base station; the distance between the third base station and the first base station is smaller than an eighth threshold, and the first base station is a base station where the beam to be turned off is located;

calculating a difference between an azimuth of at least one fourth beam and an azimuth of the beam to be switched off; the at least one fourth beam is a beam configured by the at least one third base station;

determining the at least one first beam from the at least one fourth beam according to the at least one difference value obtained by calculation; the difference value between the azimuth angle of the at least one first beam and the azimuth angle of the beam to be switched off is within a second preset range.

6. The base station energy saving method according to any one of claims 1 to 3, wherein the determining at least one first beam having a co-coverage relationship with the beam to be turned off comprises:

determining the correlation degree of the beam to be switched off and a second preset beam; the second preset beam is any beam except the beam to be turned off;

7. The base station power saving method of claim 6, wherein the method further comprises:

acquiring the number of at least one second UE, the signal intensity of the beam to be switched off measured by the at least one second UE in the preset time period, and the signal intensity of the second preset beam measured by the at least one second UE in the preset time period; the at least one second UE is a UE in the beam to be turned off; determining at least one second target UE from the at least one second UE; the mean value of a plurality of first difference values of the second target UE in the preset time period is smaller than a tenth threshold; the first difference is a difference between the signal intensity of the beam to be turned off and the signal intensity of the second preset beam measured by the second target UE at the same preset time point within the preset time period;

determining a ratio of the number of the at least one second target UE to the number of the at least one second UE as a first correlation coefficient;

acquiring the number of at least one third UE, the signal intensity of the second preset wave beam measured by the at least one third UE in the preset time period, and the signal intensity of the wave beam to be switched off measured by the at least one third UE in the preset time period; the at least one third UE is a UE within the second preset beam;

determining at least one third target UE from the at least one third UE; the mean value of a plurality of second difference values of the third target UE in the preset time period is smaller than a tenth threshold; the second difference is a difference between the signal intensity of the second preset beam and the signal intensity of the beam to be turned off, which are measured by the third target UE at the same preset time point within the preset time period;

determining a ratio of the number of the at least one third target UE to the number of the at least one third UE as a second correlation coefficient;

and determining the average value of the first correlation coefficient and the second correlation coefficient, and taking the average value as the correlation degree of the beam to be switched off and the second preset beam.

8. The base station energy saving method according to any one of claims 1 to 3, wherein the determining at least one first beam having a co-coverage relationship with the beam to be turned off comprises:

determining the switching times between the beam to be switched off and a third preset beam; the switching times include a sum of times that the at least one second UE migrates from the beam to be turned off to the third preset beam within the preset time period and times that the at least one fourth UE migrates from the third preset beam to the beam to be turned off within the preset time period; the at least one second UE is a UE in the beam to be turned off, and the at least one fourth UE is a UE in the third preset beam; the third preset beam is any one beam except the beam to be turned off;

if the switching times are greater than or equal to an eleventh threshold, determining that the third preset beam is the first beam.

9. The base station energy saving method according to any one of claims 1 to 3, wherein the method further comprises:

determining the correlation degree of the beam to be switched off and the at least one first beam and the weak coverage rate of the at least one first beam in the preset time period;

calculating a beam weight value of the at least one first beam according to the correlation degree of the beam to be switched off and the at least one first beam and the weak coverage rate of the at least one first beam in the preset time period; the beam weight value of the at least one first beam satisfies the following formula one:

W＝λ₁×P+λ₂formula I

Wherein W is the beam weight of any one of the at least one first beam, λ₁Is a first weight, P is the beam to be turned off and the beam to be turned offThe correlation, λ, of any one of the at least one first beam₂C is a weak coverage rate of any one of the at least one first beam in the preset time period.

10. The base station power saving method of claim 3, wherein the method further comprises:

acquiring an azimuth angle of the beam to be switched off, a beam width of the beam to be switched off, an azimuth angle of a fourth preset beam and a beam width of the fourth preset beam; the fourth preset beam is the second target beam or the third target beam;

calculating the azimuth angle of the adjusted fourth preset wave beam according to the azimuth angle of the wave beam to be switched off, the wave beam width of the wave beam to be switched off, the azimuth angle of the fourth preset wave beam and the wave beam width of the fourth preset wave beam; the azimuth angle of the adjusted fourth preset beam satisfies the following formula two:

β ═ 2+ (B + B/2)2 equation two

Wherein β is an azimuth angle of a fourth preset beam after adjustment, a is an azimuth angle of the beam to be turned off, a is a beam width of the beam to be turned off, B is an azimuth angle of the fourth preset beam, and B is a beam width of the fourth preset beam;

calculating the adjusted beam width of the fourth preset beam according to the azimuth angle of the beam to be switched off, the beam width of the beam to be switched off, the azimuth angle of the fourth preset beam and the beam width of the fourth preset beam; the adjusted beam width of the fourth preset beam satisfies the following formula three:

l ═ B + B/2) - (a-a/2) formula three

11. The base station energy-saving device is characterized by comprising a determining unit, a switching-off unit and a migration unit;

the determining unit is used for determining a beam to be switched off; the number of User Equipment (UE) in the beam to be turned off is smaller than a first threshold value within a preset time period, or the weak coverage rate of the beam to be turned off within the preset time period is larger than or equal to a second threshold value;

the determining unit is further configured to determine at least one first beam having a co-coverage relationship with the beam to be turned off;

the turn-off unit is configured to turn off the beam to be turned off if a first target beam exists in the at least one first beam; the weak coverage rate of the first target beam in the preset time period is less than a third threshold, and the beam weight of the first target beam is the maximum value of the beam weight of the at least one first beam; the beam weight of the first beam is positively correlated with the correlation degree of the first beam and the beam to be turned off, and the beam weight of the first beam is negatively correlated with the weak coverage rate of the first beam in the preset time period; the correlation degree of the first beam and the beam to be turned off is used for reflecting the overlapping coverage between the first beam and the beam to be turned off;

the migration unit is configured to migrate the UE in the beam to be turned off to the first target beam.

12. The base station energy saving device according to claim 11, further comprising a judging unit, a calculating unit, and an adjusting unit:

the determining unit is configured to determine whether at least one second beam exists in the first base station if the first target beam does not exist in the at least one first beam; the first base station is a base station where the beam to be turned off is located; the second beam is a beam which meets a first condition except the beam to be turned off in the first base station; the first condition includes: the weak coverage rate of the second beam in the preset time period is smaller than a fourth threshold, and the difference value between the azimuth angle of the second beam and the azimuth angle of the beam to be turned off is within a first preset range;

the calculating unit is configured to calculate an absolute value of a difference between an azimuth of each of the at least one second beam and the azimuth to be turned off if the at least one second beam exists in the first base station;

the determining unit is further configured to determine, according to the calculated absolute value, a second beam with a smallest absolute value from the at least one second beam as a second target beam;

the adjusting unit is configured to adjust an azimuth angle and a beam width of the second target beam;

the turn-off unit is used for turning off the beam to be turned off;

the migration unit is further configured to migrate the UE in the beam to be turned off to the adjusted second target beam.

13. The base station energy saving device of claim 12, wherein the determining unit is further configured to determine that at least one candidate base station exists if the at least one second beam does not exist in the first base station; the weak coverage rate of the at least one candidate base station in the preset time period is smaller than a fifth threshold value, and the distance between the at least one candidate base station and the first base station is smaller than a sixth threshold value; determining a second base station from the at least one candidate base station, wherein the distance between the second base station and the first base station is the minimum value of at least one target distance, and the target distance is the distance between the candidate base station and the first base station;

the determining unit is further configured to determine that the beam in the second base station is at least one third beam, and determine a third target beam from the at least one third beam; the correlation between the third target beam and the beam to be turned off is the maximum value of the correlations between each third beam of the at least one third beam and the beam to be turned off, or the absolute value of the difference between the azimuth angle of the third target beam and the azimuth angle of the beam to be turned off is the minimum value of the absolute values of the differences between the azimuth angle of each third beam of the at least one third beam and the azimuth angle of the beam to be turned off; the correlation degree of the third beam and the beam to be turned off is used for reflecting the overlapping coverage between the third beam and the beam to be turned off;

the adjusting unit is further configured to adjust an azimuth angle and a beam width of the third target beam;

the switching-off unit is further configured to switch off the beam to be switched off;

the migration unit is further configured to migrate the UE in the beam to be turned off to the adjusted third target beam.

14. The base station energy saving device according to claim 13, wherein the base station energy saving device further comprises an obtaining unit;

the obtaining unit is configured to obtain the number of at least one first UE and the signal strength of a first preset beam measured by the at least one first UE in the preset time period; the at least one first UE comprises a UE accessing the first preset beam within the preset time period; the first preset beam comprises the beam to be turned off, the second beam and each beam in the at least one candidate base station;

the determining unit is further configured to determine at least one first target UE from the at least one first UE; the signal intensity of the first preset beam measured by the first target UE in the preset time period is smaller than a seventh threshold;

the determining unit is further configured to determine that a ratio of the number of the at least one first target UE to the number of the at least one first UE is the weak coverage of the first preset beam.

15. The base station energy saving device according to any one of claims 11 to 13, wherein the determining unit is specifically configured to:

16. The base station energy saving device according to any one of claims 11 to 13, wherein the determining unit is further configured to:

17. The base station energy saving device according to claim 16, wherein the base station energy saving device further comprises an obtaining unit;

the obtaining unit is configured to obtain the number of at least one second UE, the signal strength of the beam to be turned off measured by the at least one second UE in the preset time period, and the signal strength of a second preset beam measured by the at least one second UE in the preset time period; the at least one second UE is a UE in the beam to be turned off; the determining unit is further configured to determine at least one second target UE from the at least one second UE; the mean value of a plurality of first difference values of the second target UE in the preset time period is smaller than a tenth threshold; the first difference is a difference between the signal intensity of the beam to be turned off and the signal intensity of the second preset beam measured by the second target UE at the same preset time point within the preset time period;

the determining unit is further configured to determine that a ratio of the number of the at least one second target UE to the number of the at least one second UE is a first correlation coefficient;

the obtaining unit is further configured to obtain the number of at least one third UE, the signal strength of the second preset beam measured by the at least one third UE in the preset time period, and the signal strength of the beam to be turned off measured by the at least one third UE in the preset time period; the at least one third UE is a UE within the second preset beam;

the determining unit is further configured to determine at least one third target UE from the at least one third UE; the mean value of a plurality of second difference values of the third target UE in the preset time period is smaller than a tenth threshold; the second difference is a difference between the signal intensity of the second preset beam and the signal intensity of the beam to be turned off, which are measured by the third target UE at the same preset time point within the preset time period;

the determining unit is further configured to determine that a ratio of the number of the at least one third target UE to the number of the at least one third UE is a second correlation coefficient;

the determining unit is further configured to determine an average value of the first correlation coefficient and the second correlation coefficient, which is a correlation degree between the beam to be turned off and the second preset beam.

18. The base station energy saving device according to any one of claims 11 to 13, wherein the determining unit is specifically configured to:

19. The base station energy saving device according to any one of claims 11-13, wherein the base station energy saving device further comprises a calculating unit;

the determining unit is further configured to determine a correlation between the beam to be turned off and the at least one first beam and a weak coverage rate of the at least one first beam in the preset time period;

the calculating unit is further configured to calculate a beam weight of the at least one first beam according to a correlation between the beam to be turned off and the at least one first beam and a weak coverage rate of the at least one first beam in the preset time period; the beam weight value of the at least one first beam satisfies the following formula one:

W＝λ₁×P+λ₂formula I

Wherein W is the beam weight of any one of the at least one first beam, λ₁Is a first weight, P is the correlation degree between the beam to be switched off and any one of the at least one first beam, lambda₂C is a weak coverage rate of any one of the at least one first beam in the preset time period.

20. The base station energy saving device according to claim 13, wherein the base station energy saving device further comprises an obtaining unit;

the obtaining unit is configured to obtain an azimuth angle of the beam to be turned off, a beam width of the beam to be turned off, an azimuth angle of a fourth preset beam, and a beam width of the fourth preset beam; the fourth preset beam is the second target beam or the third target beam;

the calculation unit is further configured to calculate an adjusted azimuth angle of the fourth preset beam according to the azimuth angle of the beam to be turned off, the beam width of the beam to be turned off, the azimuth angle of the fourth preset beam, and the beam width of the fourth preset beam; the azimuth angle of the adjusted fourth preset beam satisfies the following formula two:

β ═ 2+ (B + B/2)2 equation two

the calculating unit is further configured to calculate the adjusted beam width of the fourth preset beam according to the azimuth angle of the beam to be turned off, the beam width of the beam to be turned off, the azimuth angle of the fourth preset beam, and the beam width of the fourth preset beam; the adjusted beam width of the fourth preset beam satisfies the following formula three:

l ═ B + B/2) - (a-a/2) formula three

21. A computer-readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computer, cause the computer to perform the base station power saving method of any one of claims 1-10.

22. A base station energy saving device, comprising: a processor and a memory; wherein the memory is configured to store one or more programs, the one or more programs including computer-executable instructions, which when executed by the base station energy saving device, the processor executes the computer-executable instructions stored by the memory to cause the base station energy saving device to perform the base station energy saving method of any one of claims 1-10.