WO2012071827A1

WO2012071827A1 - Method and system for controlling power consumption of base stations

Info

Publication number: WO2012071827A1
Application number: PCT/CN2011/071683
Authority: WO
Inventors: 孙璐
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-11-30
Filing date: 2011-03-10
Publication date: 2012-06-07
Also published as: CN102014470A; CN102014470B

Abstract

The present invention discloses a method and a system for controlling power consumption of base stations, the method for controlling power consumption of base stations includes: base stations are divided into base station groups, and communication service volume threshold values of the base station groups are set, wherein, each base station group includes multiple base stations (S102); a central base station is selected from the multiple base stations, wherein, coverage of all base stations in the base station group can be covered by the central base station when transmitting signals at the largest power (S104); the central base station compares the communication service volume of all base stations in the base station group to which the central base station belongs, with the communication service volume threshold value (S106); when communication service volume of all base stations is lower than the communication service volume threshold value, the central base station increases current power saving level, improves its transmission power to the maximum, hands all terminals corresponding to all the base stations over to the central base station, and cuts off radio frequencies of other base stations in all base stations except the central base station (S108). The technical scheme provided by the present invention saves maximatily energy consumption of the whole system.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a base station power consumption control method and system. BACKGROUND OF THE INVENTION In a mobile communication system, since the number of users that each base station can accommodate and the amount of data that can be transmitted are limited, in order to meet the increasing demands of mobile communication users for call quality and data transmission performance, operators usually use Increase the base station's approach to increase system capacity. However, for mobile communication networks, communication traffic is not the same for all time periods. For example, during the exhibition center, the communication business volume will increase sharply during the exhibition, rather than the business volume during the exhibition period; in most areas, the communication traffic at night will be much lower than during the day. However, at present, the working state of the base station in the mobile communication system does not distinguish the traffic volume, and all the base stations maintain a normal working state regardless of the traffic volume, which causes a lot of unnecessary power consumption. The radio frequency part is the highest power consumption of the base station. In order to minimize the power consumption of the base station, the prior patent technology proposes several schemes for controlling the energy consumption of the base station according to the size of the base station traffic, which are mainly classified into the following types: Scheme 1: Base station According to the occupation of actual resources, the base station itself controls the turning on or off of the carrier frequency radio. When the base station detects that there is no user on a certain carrier frequency, or the number of channels occupied by a carrier frequency is zero, the radio frequency of the carrier frequency is turned off. Or when the network traffic is small, the user on the stacked load frequency is migrated to the basic carrier frequency, and then the stack load frequency is turned off. Conversely, when a new resource needs to be allocated on the off carrier frequency, the base station turns on the carrier frequency. Solution 2: The carrier frequency on and off time periods of the subordinate base stations are preset on the operation and maintenance equipment, and the operation and maintenance equipment controls the base station carrier frequency to be turned on or off. Solution 3: The base station controller is responsible for collecting the resource occupancy of the entire system, and according to the calculation result of the radio resource management algorithm, the carrier frequency of each base station in the control system is turned on or off. The solution considers the resource occupation of a single base station, lacks macroscopic considerations for the entire system, and is likely to cause a state of high load operation of other working carrier frequencies after a certain carrier frequency is turned off. Option 2 sets the carrier frequency on or off in advance, lacks flexibility, and is prone to carrier frequency and actual traffic. Inconsistent situation. Compared with the former two schemes, scheme 3 considers the resource usage of the entire system to dynamically control the carrier frequency state, which is more reasonable. However, in either case, power consumption is reduced by turning off part of the carrier frequency RF. In actual network deployment, since the frequency and bandwidth that each operator can use is limited, in order to prevent the occurrence of the same frequency interference, the base station using the same frequency point should try not to cover the same area. This leads to the fact that in some areas, such as the exhibition center area, the base station is relatively dense in order to meet the peak traffic, and each base station cannot transmit signals at maximum power. According to the method in the prior art, in order to ensure that there is no blind spot in the signal coverage, only the radio frequency of some base stations in the area can be turned off, which is relatively energy-consuming. SUMMARY OF THE INVENTION The present invention provides a base station power consumption control method and system to solve at least one of the above problems, in view of the fact that the existing power control scheme can only turn off the radio frequency of some base stations in the area, and compares energy consumption and the like. According to an aspect of the present invention, a base station power consumption control method is provided, including: dividing a base station group and setting a communication traffic threshold value of the foregoing base station group, where each base station group includes multiple base stations; Selecting a central base station in the base station, wherein the central base station can cover the coverage range of all the base stations in the base station group when transmitting the signal at the maximum power; the central base station compares the communication traffic of all the base stations in the base station group to which the base station belongs and the communication traffic gate The size of the limit; when the communication traffic of all base stations is lower than the above traffic traffic threshold, the central base station increases the current energy saving level, maximizes its transmit power, and switches the terminals corresponding to all base stations to the center. At the base station, the radio frequencies of all base stations except the central base station are turned off. The central base station compares the communication traffic volume and the traffic traffic threshold value of all the base stations in the base station group to which the base station belongs: the central base station receives the communication traffic amount reported by all the base stations in the base station group to which the central base station belongs, and counts the base station group. The communication traffic of all base stations, and compares the communication traffic of all base stations with the traffic traffic threshold. The above communication traffic includes at least one of the following: the number of users, the number of channels occupied. After the central base station compares the communication traffic volume and the traffic traffic threshold value of all the base stations in the base station group to which the primary base station belongs, the method further includes: when the communication traffic volume of all the base stations exceeds the communication traffic threshold, the central base station decreases. The current energy saving level informs all base stations to turn on the radio and reduce the transmit power of the central base station. The method further includes: setting a buffer communication traffic threshold; when the communication traffic of all base stations is lower than a difference between the communication traffic threshold and the buffered traffic threshold, the central base station increases the current energy saving level. , boosting its transmit power to the maximum, and switching the terminals corresponding to all base stations to the central base station, turning off the radio frequencies of all base stations except the central base station; the communication traffic at all base stations is higher than the communication service When the sum of the threshold and the buffered traffic threshold, the central base station lowers the current energy saving level, notifies all base stations of the base station group to turn on the radio, and reduces the transmit power of the central base station. The base station group with the base station as a basic component is the lowest level base station group among the multi-level base station groups, wherein the multi-level base station group corresponds to multiple energy-saving levels, and the base station groups of the multi-level base station group are at the lower level. The base station group is a basic constituent unit, and each base station group has a central base station. According to another aspect of the present invention, a base station power consumption control system is provided, including: an operation control center, a base station, and the operation control center, including: a base station group division module, configured to divide a base station group, where each base station group a plurality of base stations are included; a communication traffic threshold setting module is configured to set a communication traffic threshold of the base station group; and a central base station selection module is configured to select a central base station among the multiple base stations, where The central base station can cover the coverage of all the base stations in the base station group when transmitting the signal at the maximum power; the central base station includes: a communication traffic comparison module, configured to compare the communication traffic of all the base stations in the base station group to which the network station belongs, and the foregoing communication The size of the traffic threshold; the mode switching module is configured to increase the current energy saving level and maximize the transmitting power of the central base station when the communication traffic of all base stations in the base station group is lower than the traffic traffic threshold. And switching the terminals corresponding to all base stations to the central base station, The radios of all base stations except the central base station are turned off. The communication traffic comparison module is configured to receive the communication traffic periodically reported by all the base stations in the group of the base station to which it belongs, calculate the communication traffic of all the base stations in the base station group, and compare the communication traffic and the communication service of all the base stations. The size of the threshold, where the communication traffic includes at least one of the following: the number of users, the number of channels occupied. The mode switching module is further configured to reduce the current energy saving level when all the communication traffic of the base station exceeds the communication traffic threshold, notify all the base stations to open the radio frequency, and reduce the transmission power of the central base station. The communication traffic threshold setting module is further configured to set a buffer communication traffic threshold; the mode switching module is further configured to: the communication traffic at all base stations is lower than the communication traffic threshold and the buffer communication When the difference between the traffic thresholds is increased, the current energy-saving level is increased, the transmission power of the central base station is raised to the maximum, and the terminals corresponding to all base stations are switched to the central base station, and the shutdown is performed. There are radio frequencies of other base stations except the central base station in the base station; when the communication traffic of all base stations is higher than the sum of the communication traffic threshold and the buffered traffic threshold, the current energy saving level is lowered, and all are notified. The base station turns on the radio and reduces the transmit power of the central base station. The above operation control center further includes: a multi-level base station group establishing module, configured to establish a multi-level base station group by using a base station group as a basic constituent unit of the base station group, and a multi-level base station group, wherein, the multi-level The base station group corresponds to multiple energy-saving levels, and each of the base station groups in the multi-level base station group has its lower-level base station group as a basic constituent unit, and each base station group has one central base station. According to the present invention, when the communication traffic of the network is small, the transmission power coverage of the central base station is increased, and the radio frequency scheme of other base stations is turned off, thereby solving the problem of low power consumption saving rate in the prior art, thereby Maximizes energy savings in the entire system. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flowchart of a base station power consumption control method according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a base station deployment according to an example of the present invention; FIG. 3 is a parameter setting flow of an operation and maintenance center according to an example of the present invention; FIG. 4 is a flow chart of an operation mode (energy saving level) switching according to an example of the present invention; FIG. 5 is a schematic structural diagram of a base station power consumption control system according to an embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. 1 is a flow chart of a base station power consumption control method according to an embodiment of the present invention. As shown in FIG. 1, the base station power consumption control method according to the embodiment of the present invention includes: Step S102, dividing a base station group and setting a communication traffic threshold value of the base station group, where each base station group includes multiple base stations . Step S104: Select one central base station among the multiple base stations, where the central base station can cover the coverage range of all base stations in the base station group when transmitting signals with maximum power. Step S106: The central base station compares the communication traffic volume and the traffic traffic threshold value of all base stations in the base station group to which it belongs. Step S108: When the communication traffic of all the base stations is lower than the communication traffic threshold, the central base station increases the current energy saving level, increases the transmission power to the maximum, and switches the terminals corresponding to all the base stations to the central base station. , Turn off the radio frequencies of all base stations except the central base station in all base stations. Preferably, as shown in FIG. 1, after step S106, the following processing may be further included: Step S110, when the communication traffic of all base stations exceeds the communication traffic threshold, the central base station lowers the current energy saving level, and notifies all The base station turns on the radio and reduces the transmit power of the central base station. In actual network deployment, since the frequency and bandwidth that each operator can use are limited, in order to prevent the occurrence of the same frequency interference, the base station using the same frequency point should try not to cover the same area. This leads to the fact that in some areas, such as the exhibition center area, the base station is relatively dense in order to meet the peak traffic, and each base station cannot transmit signals at maximum power. Therefore, when the traffic volume of these areas is small (below the preset traffic traffic threshold), the radio frequency power of a certain base station (ie, the central base station) can be increased, so that the base station covers a larger range. At the same time, the radio frequencies of all carrier frequencies under the coverage of the base station are turned off. In this way, only one radio frequency of the base station needs to be turned on in the area, thereby minimizing power consumption. When the traffic volume of the area continues to increase and exceeds the preset traffic traffic threshold, the central base station needs to notify all base stations to turn on the radio frequency and reduce its own transmit power to prevent the occurrence of interference, and the specific reduced value. It can be flexibly selected according to factors such as the size of the traffic and the distribution of the client, and can be preferentially reduced to a level before the RF power is not increased. In the specific implementation process, in order to smoothly perform the switching of the working mode of the base station group, the transmission power of different energy saving levels (corresponding to different working modes) may be set for the central base station in the operation and maintenance center. For example, base station components can be rated for two levels of energy savings: no energy savings and maximum energy savings. The transmit powers set for the central base station under the two energy-saving levels are P0 and PM, respectively. When the base station group works under the non-energy-saving level, the radio frequencies of all the base stations of the base station group are in the working mode, and the radio transmission power of the central base station is P0, and the coverage is small, which can prevent the occurrence of interference; Maximum When working at the energy saving level, the radio frequency transmission power of the central base station is PM. At this time, the radio frequencies of other base stations in the base station group are in the shutdown mode, and the central base station covers the entire area. Preferably, the step S106 may further include the following process: the central base station receives the communication traffic of all the base stations in the base station group to which it belongs, calculates the communication traffic of all the base stations in the base station group, and compares all the base stations. The size of the communication traffic and the traffic traffic threshold. Preferably, the foregoing communication traffic includes, but is not limited to, at least one of the following: the number of users, the number of occupied channels. In a specific implementation process, all base stations of the base station group can periodically report the communication traffic of the base station to the central base station, including the number of users, the number of occupied channels, etc., and the central base station is responsible for summarizing, and determining which mode the base station group is suitable for working in. . If the communication traffic is small, the central base station itself can accommodate these services, and the central base station expands its own transmit power until it can cover the entire area of the group, and notifies all the base stations of the group to switch the terminals in the current network to the central base station. Then, all base stations except the central base station of the base station group turn off the radio frequency to achieve energy saving. When the number of users in the network increases, the central base station notifies all the base stations of the group to turn on the radio, and the central base station reduces the transmit power to the unpowered transmit power level to prevent interference with other base station signals. Preferably, in step S102, a buffer communication traffic threshold value may also be set based on the traffic traffic threshold. In this way, step S108 and step S110 are changed to: Step S108', when the communication traffic of all base stations is lower than the difference between the communication traffic threshold and the buffer traffic threshold, the central base station is improved. The current energy-saving level, the transmission power is raised to the maximum, and the terminals corresponding to all base stations are switched to the central base station, and the radio frequencies of other base stations except the central base station are turned off. Step S110', when the communication traffic of all the base stations is higher than the sum of the communication traffic threshold and the buffer traffic threshold, the central base station lowers the current energy saving level, and notifies the base station group that all the base stations turn on the radio frequency, and Reduce the transmit power of the central base station. Further setting the buffer communication traffic threshold can prevent the ping-pong effect caused by a single threshold. Preferably, the foregoing base station group with the base station as a basic constituent unit may be the last-level base station group of the multi-level base station group, where the multi-level base station group corresponds to multiple energy-saving levels, and each of the multi-level base station groups The level base station group has its lower level base station group as the basic constituent unit, and each base station group has one central base station. In a specific implementation process, multiple energy-saving levels may be set according to the size of the communication traffic in the current network, and a multi-level base station group is established, which is subdivided into multi-level sub-groups, and each level sub-group is further set with a central base station at each level. Layers are subdivided to maximize energy savings. For example, when the base station group is in the non-energy-saving class, all the base stations are in the working state; when the base station group is in the first-class energy-saving mode, the I-level central base station expands the transmit power to the set power at the level I energy-saving level, and the other base stations are turned off; When the base station group is at the maximum energy saving level, only the central base station transmits the signal with the power set by the maximum energy saving level, and all other base stations of the base station group turn off the radio frequency. The above preferred embodiments will be described in detail below with reference to examples and FIGS. 2 to 4. As shown in Figure 2, in order to meet the service quality during peak traffic, the base station is relatively densely distributed when operators deploy networks in a certain area. However, since the available frequency of the operator is limited, in order to prevent the occurrence of the same frequency interference, each base station cannot transmit the signal at the maximum power. When the base station a transmits the radio frequency signal at the maximum power, it can cover the entire area, but in order to prevent the interference, the transmission power of the base station a is reduced to cover only the twill area. When the traffic volume in the area is small (below the preset traffic traffic threshold), the radio frequency power of the base station a can be adjusted to the maximum transmit power, and then the mobile terminals of all base stations under the coverage of the base station a are switched to the base station. On a, the radio frequencies of these base stations are turned off. Since the base station a can cover the coverage of all of these base stations, there is no coverage blind spot in the area. At this time, only the radio frequency of the base station a in the area is in the working mode, and the radio frequencies of other base stations are turned off, thereby maximally saving the energy consumption of the system. When the traffic of the base station a is large, the base station a notifies other base stations under its coverage to turn on the radio frequency, and then the base station a re-reduces the transmission power to the initial setting to avoid interference with other base stations. 3 is a flow chart of parameter setting of an operation and maintenance center according to an example of the present invention. The parameter flow to be set is as follows. The base station deployment structure shown in FIG. 2 is taken as an example: Step S302: Base stations of a certain area are grouped, and each is specified. The central base station of the group. Taking the base station deployment structure shown in FIG. 2 as an example, the base stations a, b, c, d, e, f, and g are grouped into one group, and the central base station is the base station a. Step S304: The central base stations of each group set the transmission power at different energy saving levels. In the base station deployment structure shown in Figure 2, the base station component has two energy-saving levels: no energy saving and maximum energy saving, the lowest energy saving level when no energy saving, and the highest energy saving level when the maximum energy saving; The fixed transmit powers are P0 and PM, respectively. When the base station group works under the non-energy-saving level, the radio frequency transmission power of the base station a is P0, and the coverage is small, and only the twill area can be covered. At this time, the radio frequencies of all the base stations of the base station group are in the working mode; When working at the maximum energy-saving level, the radio frequency transmission power of the base station a is PM, and the coverage is large, and the entire area can be covered. At this time, the radio frequencies of other base stations in the base station group are in the shutdown mode. Step S306: Set a communication traffic threshold of each energy-saving level of the base station group, including the number of users, the number of occupied channels, and the like. When the communication traffic of the base station group reaches the threshold of a certain energy saving level, the working state of the group of base stations is switched to the energy saving level. The energy-saving traffic threshold must be less than the maximum capacity of the group of central base stations. If the central base station can accommodate up to 300 users, the energy-saving threshold must be less than 300 users. Otherwise, when the group of base stations enters the maximum energy-saving level mode, some users cannot access the central base station and affect the quality of service. In order to prevent the ping-pong effect caused by a single threshold, the buffer threshold may be further set. If the communication traffic of the base station group is lower than the difference between the maximum energy-saving threshold and the buffer threshold, the switch to the maximum energy-saving level is allowed; and the maximum energy-saving level is exited. Communication traffic must meet the sum of the maximum energy-saving threshold and the buffer threshold. Step S308: The setting data of the operation and maintenance center is transmitted to each base station, that is, the parameters set in steps S302 to S306 are transmitted to all base stations, and each base station group operates according to the set parameters. As shown in FIG. 4, the base station group working mode (energy saving level) switching procedure is as follows: Step S402: All base stations of the base station group periodically send the current communication traffic of the local base station to the central base station of the group. Step S404: After the central base station aggregates the communication traffic of all the base stations in the group, the central base station determines the communication traffic threshold according to each energy saving level set by the operation and maintenance center. Step S406: If the result of the determination is the same as the energy saving level of the current base station group, no processing is required; if the determination result is different from the energy saving level of the current base station group, the process proceeds to step S408. Step S408: Determine whether the energy saving level of the base station group is improved. If the base station group energy saving level is increased, the process proceeds to step S410; if the base station group energy saving level is lower, the process proceeds to step S412. Step S410: When the energy saving level of the base station group is increased, the central base station needs to first increase the transmission power to the transmission power of the level set by the operation and maintenance center to ensure that the coverage of the central base station is larger. Step S412: The central base station sends a power saving level switching indication to all the base stations of the group, where a new energy saving level is indicated. After receiving the indication message, each base station performs corresponding processing: If the value is high, the terminal of the base station is forcibly switched to the frequency of the central base station, and then the radio frequency signal of the base station is turned off, and the energy-saving level switching response message is returned to the central base station. Since the base station turns off the radio frequency, there is no longer a terminal. Access, so it is possible to stop the periodic reporting of traffic; if the energy-saving level is reduced, the radio that was originally turned off by the base station is turned on, and then the central base station is returned with the energy-saving level handover response message, and the communication service of the base station is periodically continued. the amount. Step S414: The central base station needs to collect the energy-saving level handover response message replied by all the base stations of the group. Step S416: If the result of the decision in step S408 is that the energy saving level of the base station group is reduced, all the base stations of the base station group have turned off the turned off radio frequency in step S412. To prevent the wireless base station, the central base station needs to reduce the transmission power to the new one. The power level corresponds to the transmit power. FIG. 5 is a schematic structural diagram of a base station power consumption control system according to an embodiment of the present invention. As shown in FIG. 5, the base station power consumption control system according to the embodiment of the present invention includes: an operation control center 52, and a central base station 56. The operation control center 52 may further include: a base station group dividing module 522, configured to divide the base station group Wherein, each base station group includes a plurality of base stations 54. The communication traffic threshold setting module 524 is configured to set a communication traffic threshold of the foregoing base station group. The central base station selection module 526 is configured to select a central base station 56 among the plurality of base stations 54, wherein the central base station 56 can cover the coverage range of all base stations in the base station group when transmitting signals at the maximum power; the central base station 56 can The method further includes: a communication traffic comparison module 562, configured to compare the communication traffic volume and the traffic traffic threshold value of all base stations in the base station group to which the group belongs; the mode switching module 564 is configured to perform communication services of all base stations in the base station group. When the quantity is lower than the communication traffic threshold, the current energy saving level is increased, the transmission power of the central base station 56 is raised to the maximum, and the terminals corresponding to all the base stations are switched to the central base station 56, and all the base stations except the center are turned off. The radio frequency of the other base stations 54 other than the base station 56. Preferably, the mode switching module 564 is further configured to reduce the current energy saving level when all the communication traffic of the base station exceeds the communication traffic threshold, notify all the base stations to turn on the radio frequency, and reduce the transmission power of the central base station 56. The above system is mainly for a relatively dense area of a base station. When the communication traffic of the network is small, only the transmit power coverage of the central base station 56 is increased, and the radio frequencies of other base stations 54 are turned off, thereby maximally saving the energy of the entire system. Consumption. In a specific implementation, the operational control center 52 has a wired or wireless connection with each of the base stations 54 including the central base station 56. Each of the base stations 54 including the central base station 56 also has a wired or wireless connection. The working mode and the expansion mode of the foregoing system are described in detail in the foregoing method embodiments, and details are not described herein again. Preferably, the communication traffic comparison module 562 of the central base station 56 can be configured to receive the communication traffic of all the base stations in the base station group to which it belongs, and calculate the communication traffic of all the base stations in the base station group. And comparing the communication traffic of all base stations with the size of the communication traffic threshold. Preferably, the foregoing communication traffic includes, but is not limited to, at least one of the following: the number of users, the number of occupied channels. In a specific implementation process, all base stations of the base station group can periodically report the communication traffic of the base station to the central base station 56, including the number of users, the number of occupied channels, etc., which are summarized by the central base station 56, and determine which mode the base station group is suitable for. Work under. If the communication traffic is small, the central base station 56 itself can accommodate these services, and the central base station 56 expands its own transmit power until it can cover the entire area of the group, and notifies all the base stations of the group to switch the terminals in the current network to At the central base station 56, the base station 54 of the base station group except the central base station 56 then turns off the radio frequency to achieve energy saving. When the number of users in the network increases, the central base station 56 notifies all the base stations of the group to turn on the radio, and the central base station 56 reduces the transmit power to the unpowered transmit power level to prevent interference with other base station 54 signals. Preferably, the communication traffic threshold setting module 524 can also be configured to set a buffer traffic threshold; the mode switching module 564 can also be configured to lower the communication traffic at all base stations than the communication traffic threshold. When the value is different from the buffered traffic threshold, the current energy saving level is increased, the transmission power of the central base station 56 is maximized, and the terminals corresponding to all base stations are switched to the central base station 56, and all base stations are turned off. Shooting of other base stations 54 other than the central base station 56 Frequency; when the communication traffic of all base stations is higher than the sum of the traffic traffic threshold and the buffer traffic threshold, the current energy saving level is lowered, all base stations are notified to turn on the radio, and the transmit power of the central base station 56 is lowered. . Further setting the buffer communication traffic threshold can prevent the ping-pong effect caused by a single threshold. Preferably, as shown in FIG. 5, the operation control center 52 may further include: a multi-level base station group establishing module 528, configured to be the lowest level of the base station group with the base station 54 as a basic constituent unit divided by the base station group dividing module 522. The base station group establishes a multi-level base station group, wherein the multi-level base station group corresponds to multiple energy-saving levels, and the base station groups in the multi-level base station group use the base station group of the first-level base as the basic constituent unit, and the base station groups at each level There is a central base station 56. In a specific implementation process, multiple energy-saving levels may be set according to the size of the communication traffic in the current network, and a multi-level base station group is established, which is subdivided into multi-level sub-groups, and each level sub-group is further set with a central base station at each level. Layers are subdivided to maximize energy savings. From the above description, it can be seen that compared with the prior art, in the relatively dense area of the 40 pairs of base stations of the present invention, each base station cannot transmit signals with maximum power, and when the communication traffic of the network is small, only Increasing the transmit power coverage of the central base station and turning off the radio frequencies of other base stations around the center minimizes the energy consumption of the entire system. Since the turn-off or turn-on of the peripheral base station radio is controlled by the central base station, the central base station requires the peripheral base station to turn off the radio frequency while increasing its coverage, ensuring that the interference is not affected and no interference is introduced. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A base station power consumption control method, comprising: dividing a base station group and setting a communication traffic threshold of the base station group, where each of the base station groups includes multiple base stations;

Selecting a central base station among the plurality of base stations, wherein the central base station can cover a range covered by all base stations in the base station group when transmitting a signal at a maximum power; the central base station compares all base stations in the base station group to which the base station belongs Communication traffic and the size of the communication traffic threshold;

When the communication traffic of all the base stations is lower than the traffic traffic threshold, the central base station increases the current energy saving level, increases its transmission power to a maximum, and switches the terminals corresponding to all the base stations. Going to the central base station, turning off radio frequencies of other base stations except the central base station among all the base stations.

The method according to claim 1, wherein the central base station compares the communication traffic volume of all base stations in the base station group to which the base station belongs and the size of the communication traffic threshold: The communication traffic reported by all the base stations in the base station group is counted, and the communication traffic of all the base stations in the base station group is counted, and the communication traffic volume of the all base stations and the communication traffic threshold value are compared.

3. The method of claim 2, wherein the communication traffic comprises at least one of: a number of users, a number of channels occupied.

The method according to claim 1, wherein after the central base station compares the communication traffic volume of all the base stations in the base station group to which the base station group belongs and the size of the communication traffic threshold, the method further includes:

When the communication traffic of all the base stations exceeds the communication traffic threshold, the central base station lowers the current energy saving level, notifies all the base stations to turn on the radio frequency, and reduces the transmission power of the central base station.

The method according to any one of claims 1 to 4, further comprising: setting a buffer communication traffic threshold; When the communication traffic of all the base stations is lower than the difference between the communication traffic threshold and the buffer traffic threshold, the central base station increases the current energy saving level and increases its transmission power to Maximum, and all the terminals corresponding to all the base stations are switched to the central base station, and the radio frequencies of the other base stations except the central base station are turned off;

When the communication traffic of all the base stations is higher than the sum of the communication traffic threshold and the buffered traffic threshold, the central base station lowers the current energy saving level, and notifies the base station group of all The base station turns on the radio frequency and reduces the transmit power of the central base station.

The method according to claim 5, wherein the base station group with the base station as a basic constituent unit is the last-level base station group of the multi-level base station group, wherein the multi-level base station group corresponds to multiple energy-saving groups. The base station group of each of the multi-level base station groups has a lower-level base station group as a basic constituent unit, and each base station group has a central base station.

7. A base station power consumption control system, comprising: an operation control center, a base station,

The operation control center includes:

a base station group division module, configured to divide a base station group, where each of the base station groups includes multiple base stations;

a communication traffic threshold setting module, configured to set a communication traffic threshold of the base station group;

a central base station selection module, configured to select a central base station among the plurality of base stations, wherein the central base station can cover a range covered by all base stations in the base station group when transmitting signals with maximum power;

The central base station includes: a communication traffic comparison module, configured to compare a communication traffic volume of all base stations in the base station group to which it belongs and a size of the communication traffic threshold;

a mode switching module, configured to: when the communication traffic of all base stations of the base station group is lower than the traffic traffic threshold, increase a current energy saving level, and increase a transmit power of the central base station to a maximum, and The terminals corresponding to all the base stations are all switched to the central base station, and the radio frequencies of other base stations except the central base station are turned off.

The system according to claim 7, wherein the communication traffic comparison module is configured to receive the communication traffic periodically reported by all the base stations in the base station group to which it belongs, and calculate the communication of all base stations in the base station group. Traffic, and comparing the communication traffic of the all base stations with the size of the communication traffic threshold, wherein the communication traffic includes at least one of the following: a number of users, and a number of occupied channels.

The system according to claim 7, wherein the mode switching module is further configured to: when the communication traffic of all the base stations exceeds the communication traffic threshold, reduce the current energy saving level, and notify the All base stations turn on the radio and reduce the transmit power of the central base station.

10. The system according to any one of claims 7 to 9, wherein

The communication traffic threshold setting module is further configured to set a buffer traffic threshold;

The mode switching module is further configured to increase the current energy saving level when the communication traffic of all the base stations is lower than the difference between the communication traffic threshold and the buffer traffic threshold. The transmission power of the central base station is raised to the maximum, and the terminals corresponding to all the base stations are switched to the central base station, and the radio frequencies of other base stations except the central base station are turned off; When the communication traffic of all the base stations is higher than the sum of the communication traffic threshold and the buffer traffic threshold, the current energy saving level is lowered, and all the base stations are notified to turn on the radio, and lower the The transmit power of the central base station.

The system according to claim 10, wherein the operation control center further comprises: a multi-level base station group establishing module, configured to be the base station with the base station as a basic constituent unit divided by the base station group dividing module The group establishes a multi-level base station group for the lowest-level base station group, where the multi-level base station group corresponds to multiple energy-saving levels, and each of the multi-level base station groups has the lower-level base station group as the lower-level base station group. The basic constituent unit, each base station group has a central base station.