CN112235852A - Energy-saving method and system for closed coverage area base station cluster - Google Patents
Energy-saving method and system for closed coverage area base station cluster Download PDFInfo
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- CN112235852A CN112235852A CN202011083471.5A CN202011083471A CN112235852A CN 112235852 A CN112235852 A CN 112235852A CN 202011083471 A CN202011083471 A CN 202011083471A CN 112235852 A CN112235852 A CN 112235852A
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- base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
- H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses an energy-saving method and system for a closed coverage area base station cluster, wherein the method comprises the following steps: dividing base stations covering a relatively closed area into a base station cluster, and planning the base station cluster into a TA area; marking the base station at the entrance of the closed area as an energy-saving main base station; when detecting that no on-line user or resident user exists in the base station cluster, informing all base stations of the base station cluster except the energy-saving main base station to enter a dormant state; when the energy-saving main base station detects that a user accesses, all the dormant base stations in the base station cluster are informed to enter a normal working state. The invention can accurately control the dormancy time of the base station, and can not cause coverage holes to cause that the on-line user can not call or connect to the network. The invention can perform energy-saving dormancy based on the base station cluster, and is more efficient than the operation of a single base station. In addition, the application scene of the invention is wider, and the invention can be implemented as long as the coverage area is relatively independent and closed.
Description
Technical Field
The present invention relates to a base station energy saving technology in a mobile communication system, and in particular, to an energy saving method and system for a closed coverage area base station cluster.
Background
In order to meet the demand of faster speed of general consumers, and the demand of ultra-large scale link terminals and ultra-low delay in the industrial field, mobile communication networks are developing towards larger bandwidth and larger scale antenna arrays. With the consequent higher power consumption, the 4G network energy consumption cost accounts for 25% of the whole network operation cost according to the statistics of a certain operator. The 5G system adopts a larger bandwidth and a massive MIMO technology, so that the energy consumption of the BBU and the AAU is greatly improved, and the energy consumption of the 5G base station is 10 times that of the 4G base station under the typical configuration of a single station of 1BBU +3 AAU.
Therefore, how to reduce the energy consumption of the base station is a key issue related to the operation cost of the operator. At present, the conventional scheme for saving energy of a base station is that operation and maintenance personnel count busy and idle time periods of each station based on traffic, and then a network manager sets sleep time of each base station to enable the base station to enter a sleep state when the traffic is low. The scheme has the problems of large workload, inaccurate sleep time, coverage holes possibly causing network drop of users and the like.
In the networking of the mobile network, there is a networking scene with a relatively closed coverage area, such as high-rise office building coverage (figure 1), sports and exhibition venue coverage (figure 2), railway and highway coverage along lines (figure 3) and the like, and the coverage is characterized in that the coverage is relatively independent and closed, and the network is not used by users for a long time in one day.
Patent cn201210279242.x discloses an energy-saving method and device for a base station of a high-speed railway private network, which require a special device on a train to report train number information and a pre-stored train number information table to determine a dormant base station.
Disclosure of Invention
The invention aims to provide an energy-saving method and system for a closed coverage area base station cluster, which have wider application range and can automatically enter a dormant state.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
According to an aspect of the present invention, there is provided an energy saving method for a closed coverage area base station cluster, comprising the steps of: dividing base stations covering a relatively closed area into a base station cluster, and planning the base station cluster into a TA area; marking the base station at the entrance of the closed area as an energy-saving main base station; when detecting that no on-line user or resident user exists in the base station cluster, informing all base stations of the base station cluster except the energy-saving main base station to enter a dormant state; when the energy-saving main base station detects that a user accesses, all the dormant base stations in the base station cluster are informed to enter a normal working state.
In an embodiment, the online user of the method refers to a user who establishes a signaling connection relationship with the base station cluster.
In an embodiment, the camping user of the method refers to a user that does not establish a signaling connection with the base station but resides in the base station cluster.
In an embodiment, the energy-saving main base station of the method stores information of all other base stations and establishes signaling connection relations with all other base stations.
In an embodiment, the sleep state of the method is to close a power amplifier of a radio frequency component of the base station, not transmit signals at an air interface, but maintain a normal signaling connection state between the base stations.
In an embodiment, the controlling, when it is detected that there is no online user or resident user in the base station cluster, all base stations of the base station cluster except for the energy-saving main base station to enter the sleep state includes: and presetting a time limit, judging whether a new user is accessed and resided within the set time limit when detecting that no online user or resident user exists in the base station cluster, and informing all base stations of the base station cluster except the energy-saving main base station to enter a dormant state if no new user is accessed and resided within the set time limit.
In an embodiment, a manner of accessing a user to an energy-saving main base station by the method includes: the user in the connection state is switched and connected to the energy-saving main base station of the base station cluster through the cell; and the user in idle state accesses the energy-saving main base station of the base station cluster through the TA updating process.
In one embodiment, the relatively enclosed areas of the method include office buildings, sports arenas, exhibition arenas, railroad wayside areas, and highway wayside areas.
According to another aspect of the present invention, there is also provided a closed coverage area base station cluster energy saving system, including: the base station cluster dividing module is used for dividing the base station covering the relatively closed area into a base station cluster and planning the base station cluster into a TA area; the energy-saving main base station marking module is used for marking the base station at the entrance of the closed area as an energy-saving main base station; the energy-saving state notification module is used for notifying all base stations of the base station cluster except the energy-saving main base station to enter a dormant state when detecting that no online user or resident user exists in the base station cluster; and the awakening module is used for informing all dormant base stations in the base station cluster to enter a normal working state when the energy-saving main base station detects that a user accesses.
In an embodiment, the system further includes a timer, where the timer is used to set a time limit in advance, when no online user or resident user is detected in the base station cluster, the timer is started, and if no new user accesses and resides during the running period of the timer, the energy saving state notification module notifies all base stations of the base station cluster except for the energy saving main base station to enter the sleep state.
The embodiment of the invention has the beneficial effects that: the invention can accurately control the dormancy time of the base station, and can not cause coverage holes to cause that the on-line user can not call or connect to the network. The invention can perform energy-saving dormancy based on the base station cluster, and is more efficient than the operation of a single base station. In addition, the application scene of the invention is wider, and the invention can be implemented as long as the coverage area is relatively independent and closed.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
The above features and advantages of the present disclosure will be better understood upon reading the detailed description of embodiments of the disclosure in conjunction with the following drawings. In the drawings, components are not necessarily drawn to scale, and components having similar relative characteristics or features may have the same or similar reference numerals.
FIG. 1 is a schematic diagram of office building base station cluster coverage according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating coverage of a cluster of base stations in a sports and exhibitions venue in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram of coverage of base station clusters along roads and railways according to an embodiment of the present invention;
FIG. 4 is a schematic flow diagram of an embodiment of the method of the present invention;
fig. 5 is a schematic diagram of module connections in an embodiment of the system of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. It is noted that the aspects described below in connection with the figures and the specific embodiments are only exemplary and should not be construed as imposing any limitation on the scope of the present invention.
As shown in fig. 4, an embodiment of the present invention discloses an energy saving method for a closed coverage area base station cluster, which includes the following steps:
step 401: according to network construction planning, a group of base stations with relatively closed coverage areas is divided into a base station cluster, and all base stations under the base station cluster are provided with TA (tracking area) values different from surrounding base stations.
Step 402: according to the planned coverage map, the base stations that the user may enter in the base station cluster are identified as energy-saving main base stations, such as the base station of the high-rise office building covering the entrance of the first floor shown in fig. 1, the base stations of the sports and exhibition venues covering all entrances shown in fig. 2, the base station of the railway station shown in fig. 3, and the base stations of all entrances of the road. The remaining base stations are identified as energy-saving base stations. The main base station is used for detecting whether a new user enters the base station cluster, and the main base station is normally open and does not enter an energy-saving dormant state.
The main base station stores the information of all the energy-saving base stations, establishes a signaling connection relation with the energy-saving base stations and can receive and transmit energy-saving instructions.
Step 403: and counting the number of the users connected with the network and the number of idle resident users of the base station cluster in real time, wherein the number of the users connected with the network refers to the users establishing a signaling connection relation with the base station cluster, and the number of the resident users refers to the users not establishing signaling connection with the base station but residing in the base station cluster.
Step 404: and when the counted number of the on-network users and the number of the resident users in the base station cluster are both 0, determining that the base station cluster enters an energy-saving dormant state. The energy-saving dormant state means that the base station closes the power amplifier of the radio frequency components such as the RRU, the AAU and the like, signals are not transmitted at an air interface, but the signaling connection between the base stations still keeps a normal connection state.
In order to avoid ping-pong switching of the energy saving state caused by the statistics of 0 in a short time, a timer may be set in the specific implementation. And when the number of the on-network users and the number of the resident users are both counted to be 0, starting the timer, and judging that the base station cluster enters an energy-saving dormant state if no new user is accessed and resident in the running period of the timer.
Step 405: and sending an instruction for entering an energy-saving dormant state to all the energy-saving base stations except the main base station of the base station cluster.
Step 406: and the base station receiving the instruction of entering the energy-saving dormancy executes the operation of closing the radio frequency part of the base station and stops sending the air interface signal, thereby achieving the purpose of saving energy consumption. At this time, except the main base station, other base stations of the whole base station cluster are in a dormant state. The user enters the base station cluster and can only receive the air interface signal of the main base station.
Step 407: when a user approaches the base station cluster in the dormant state, the user in the connected state is switched to be connected to the main base station of the base station cluster through the cell, and the user in the idle state is accessed to the main base station of the base station cluster through a TA updating process.
Step 408: and the main base station sends an instruction of exiting the energy-saving dormant state to all the energy-saving base stations in the base station cluster.
Step 409: and the base station receiving the instruction for quitting the energy-saving modification executes the operation of opening the radio frequency part of the base station, and then the air interface sends the signal again so as to facilitate the normal use of the user. At this time, the whole base station cluster enters a normal working state.
Correspondingly to the method, the embodiment of the invention also discloses an energy-saving system for the closed coverage area base station cluster, which comprises the following steps:
a base station cluster dividing module 501, configured to divide a base station covering a relatively closed area into a base station cluster, and plan the base station cluster as a TA area;
an energy-saving main base station marking module 502, configured to mark a base station at an entrance of the closed area as an energy-saving main base station;
an energy saving state notification module 503, configured to notify all base stations of the base station cluster except for the energy saving main base station to enter a sleep state when it is detected that there are no online users and no resident users in the base station cluster;
and a wake-up module 504, configured to notify all dormant base stations in the base station cluster to enter a normal operating state when the energy-saving main base station detects that there is a user accessing.
In a possible embodiment, the system may further include a timer configured to set a time limit in advance, start the timer when no online user or resident user is detected in the base station cluster, and notify all base stations of the base station cluster except the energy-saving master base station to enter the sleep state if no new user accesses and resides during the running period of the timer.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The above description is only a preferred example of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.
Claims (10)
1. An energy-saving method for a closed coverage area base station cluster is characterized by comprising the following steps:
dividing base stations covering a relatively closed area into a base station cluster, and planning the base station cluster into a TA area;
marking the base station at the entrance of the closed area as an energy-saving main base station;
when detecting that no on-line user or resident user exists in the base station cluster, informing all base stations of the base station cluster except the energy-saving main base station to enter a dormant state;
when the energy-saving main base station detects that a user accesses, all the dormant base stations in the base station cluster are informed to enter a normal working state.
2. The method of claim 1, wherein: the online user refers to a user establishing a signaling connection relationship with the base station cluster.
3. The method of claim 1, wherein: the resident user refers to a user who does not establish a signaling connection with the base station but resides in the base station cluster.
4. The method of claim 1, wherein: the energy-saving main base station stores information of all other base stations and establishes signaling connection relation with all other base stations.
5. The method of claim 1, wherein: the dormant state is the state of closing the power amplifier of the radio frequency part of the base station, not transmitting signals at an air interface, but keeping the normal signaling connection state between the base stations.
6. The method of claim 1, wherein the controlling all base stations of the base station cluster except the energy-saving main base station to enter the sleep state when detecting that there is no online user or resident user in the base station cluster comprises: and presetting a time limit, judging whether a new user is accessed and resided within the set time limit when detecting that no online user or resident user exists in the base station cluster, and informing all base stations of the base station cluster except the energy-saving main base station to enter a dormant state if no new user is accessed and resided within the set time limit.
7. The method for saving energy of a base station cluster according to claim 1, wherein the manner of accessing the energy-saving master base station by the user comprises: the user in the connection state is switched and connected to the energy-saving main base station of the base station cluster through the cell; and the user in idle state accesses the energy-saving main base station of the base station cluster through the TA updating process.
8. The method of claim 1, wherein: the relatively closed areas include office buildings, sports venues, exhibition venues, railway line areas and highway line areas.
9. A closed coverage area base station cluster energy saving system, comprising:
the base station cluster dividing module is used for dividing the base station covering the relatively closed area into a base station cluster and planning the base station cluster into a TA area;
the energy-saving main base station marking module is used for marking the base station at the entrance of the closed area as an energy-saving main base station;
the energy-saving state notification module is used for notifying all base stations of the base station cluster except the energy-saving main base station to enter a dormant state when detecting that no online user or resident user exists in the base station cluster;
and the awakening module is used for informing all dormant base stations in the base station cluster to enter a normal working state when the energy-saving main base station detects that a user accesses.
10. The closed coverage area base station cluster energy conservation system of claim 9 wherein: the energy-saving state notification module is used for notifying all base stations except an energy-saving main base station of the base station cluster to enter a dormant state if no new user is accessed and resided in the running period of the timer.
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| CN202011083471.5A CN112235852A (en) | 2020-10-12 | 2020-10-12 | Energy-saving method and system for closed coverage area base station cluster |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113891435A (en) * | 2021-09-23 | 2022-01-04 | 新华三技术有限公司 | Base station control method and device and electronic equipment |
| WO2023184979A1 (en) * | 2022-03-29 | 2023-10-05 | 中兴通讯股份有限公司 | Base station energy-saving method for ultra-dense network, energy-saving device, and readable storage medium |
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| CN104768184A (en) * | 2015-04-30 | 2015-07-08 | 厦门大学 | Household base station energy saving and interference suppression method and system based on scale deployment |
| CN105472711A (en) * | 2014-09-05 | 2016-04-06 | ***通信集团公司 | Base station control method and device and base stations |
| CN111050387A (en) * | 2019-11-21 | 2020-04-21 | 北京邮电大学 | Base station dormancy method and device based on energy efficiency estimation, electronic equipment and medium |
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2020
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103974389A (en) * | 2013-02-01 | 2014-08-06 | 株式会社日立制作所 | Base station in cellular network and sleep control method thereof |
| CN105472711A (en) * | 2014-09-05 | 2016-04-06 | ***通信集团公司 | Base station control method and device and base stations |
| CN104768184A (en) * | 2015-04-30 | 2015-07-08 | 厦门大学 | Household base station energy saving and interference suppression method and system based on scale deployment |
| CN111050387A (en) * | 2019-11-21 | 2020-04-21 | 北京邮电大学 | Base station dormancy method and device based on energy efficiency estimation, electronic equipment and medium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113891435A (en) * | 2021-09-23 | 2022-01-04 | 新华三技术有限公司 | Base station control method and device and electronic equipment |
| WO2023184979A1 (en) * | 2022-03-29 | 2023-10-05 | 中兴通讯股份有限公司 | Base station energy-saving method for ultra-dense network, energy-saving device, and readable storage medium |
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