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WO2014153709A1 - 基站节能方法、装置和基站 - Google Patents

基站节能方法、装置和基站 Download PDF

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Publication number
WO2014153709A1
WO2014153709A1 PCT/CN2013/073145 CN2013073145W WO2014153709A1 WO 2014153709 A1 WO2014153709 A1 WO 2014153709A1 CN 2013073145 W CN2013073145 W CN 2013073145W WO 2014153709 A1 WO2014153709 A1 WO 2014153709A1
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WO
WIPO (PCT)
Prior art keywords
base station
small cell
cell base
energy
saving state
Prior art date
Application number
PCT/CN2013/073145
Other languages
English (en)
French (fr)
Inventor
肖登坤
韩静
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380001983.4A priority Critical patent/CN104303559B/zh
Priority to PCT/CN2013/073145 priority patent/WO2014153709A1/zh
Publication of WO2014153709A1 publication Critical patent/WO2014153709A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/165—Performing reselection for specific purposes for reducing network power consumption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a base station energy saving method, apparatus, and base station. Background technique
  • the base station determines whether to enter the energy-saving state by judging the network traffic of the network, and does not consider the neighboring base stations.
  • the load capacity when the base station switches the user to the neighboring base stations, may affect the normal services of other base stations, and once other base stations are unable to carry the users of the base station, the user service may be delayed or even interrupted.
  • the embodiment of the present invention provides a base station energy-saving method, device, and base station.
  • the technical solution is as follows:
  • a method for powering a base station includes:
  • the macro eNB receives the energy-saving handover request sent by the at least one small cell base station, and each of the energy-saving handover requests carries the first parameter information, where the first parameter information includes at least: the total number of resource blocks occupied by the small-cell base station, and the small-cell base station Downlink transmission power, total number of users covered by the small cell base station, macro The downlink transmit power required by the base station to provide services for users covered by the small cell base station;
  • the total number of users occupied by the small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station is a user covered by the small cell base station, according to the total number of resource blocks occupied by the small cell base station of each small cell base station Providing a downlink transmit power and a power-saving handover condition required by the service, and determining whether the at least one small cell base station satisfies the energy-saving handover condition;
  • the at least one small cell base station And transmitting, by the at least one small cell base station, a power saving handover command to the at least one small cell base station, so that the user covered by the at least one small cell base station switches to the macro base station, when the user switches At the end, the at least one small cell base station enters a power saving state.
  • the method also includes:
  • the downlink transmit power required by the base station to provide services for the user covered by the small cell base station in the energy-saving state;
  • the working state switching command is sent to the small cell base station in the energy-saving state, so that the small cell base station in the energy-saving state is switched from the energy-saving state to the working state.
  • the total number of resource blocks occupied by the small cell base station, the downlink transmit power of the small cell base station, and the small cell base station according to the small cell base station includes: a total number of users that are covered, a downlink transmit power and a power-saving handover condition that are required by the macro-base station service to provide a service for the user that is covered by the small-cell base station, and the method further includes:
  • the at least one small cell base station When the at least one small cell base station does not satisfy the power saving handover condition, reducing the number of the at least one small cell base station until the reduced number of small cell base stations satisfy the energy saving switching condition, to the reduced number of The small cell base station sends a power-saving handover command, so that the reduced number of d, the user covered by the cell base station is switched to the macro base station, and when the user handover ends, the quantity is reduced.
  • the small cell base station enters a power saving state.
  • the power saving switching condition is that a total number of idle resource blocks of the macro base station is greater than a total number of occupied resource blocks of the at least one small cell base station, and the macro base
  • the downlink transmit power required by the station to provide services for the user covered by the at least one small cell base station is smaller than the downlink transmit power of the at least one small cell base station.
  • the second parameter information that is sent by the small cell base station in the power saving state is received, and the second parameter information includes: After the location information of the small cell base station, the total number of the idle resource blocks, and the downlink transmit power required by the small cell base station in the energy-saving state to provide the service to the user in the energy-saving small cell base station, the method further includes:
  • the downlink transmit power and the working state switch required for providing services for the user covered by the small cell base station The condition is: determining whether the small cell base station in the energy-saving state meets the working state switching condition, including:
  • the location information of the small cell base station in the energy-saving state, the total number of idle resource blocks, and the small cell base station in the energy-saving state are the small cells.
  • the downlink coverage power and the working state switching condition required by the user covered by the base station are provided, and it is determined whether the small cell base station in the energy-saving state satisfies the working state switching condition.
  • the working state switching condition is that the total number of resource blocks used by the macro base station to provide services for a user covered by a small cell base station in a power saving state is smaller than The total number of idle resource blocks of the small cell base station in the energy-saving state, and the downlink base station used by the macro base station to provide services for users covered by the small cell base station in the energy-saving state is greater than the small-cell base station in the energy-saving state
  • the downlink transmit power used to provide services to the covered users.
  • the macro base station and the small cell base station perform signal transmission and reception through an Xm interface.
  • a base station energy saving device includes: The first receiving module is configured to receive the energy saving switching request sent by the at least one small cell base station, where each energy saving switching request carries the first parameter information, where the first parameter information at least includes: the total number of resource blocks occupied by the small cell base station, The downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmit power required by the macro base station to provide services for users covered by the small cell base station;
  • a first determining module configured to: according to the total number of resource blocks occupied by the small cell base station of each small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station Determining, by the user that is covered by the small cell base station, the downlink transmit power and the energy-saving handover condition required by the service, and determining whether the at least one small cell base station satisfies the energy-saving handover condition;
  • a first sending module configured to: when the at least one small cell base station meets the energy saving switching condition, send a power saving handover command to the at least one small cell base station, so that the user covered by the at least one small cell base station switches to the The macro base station, when the user handover ends, the at least one small cell base station enters a power saving state.
  • the device further includes: a second receiving module, configured to receive second parameter information sent by any small cell base station in a power saving state, where
  • the second parameter information includes: at least: the location information of the small cell base station in the power saving state, the total number of idle resource blocks, and the small cell base station in the energy saving state, which is required for providing services for the user covered by the small cell base station in the energy saving state.
  • a second determining module configured to: according to the location information of the small cell base station in the energy saving state, the total number of idle resource blocks, and the downlink transmit power required by the small cell base station in the energy saving state to provide services for the user covered by the small cell base station And determining, by the working state switching condition, whether the small cell base station in the energy saving state satisfies the working state switching condition;
  • a second sending module configured to: if the small cell base station in the energy-saving state meets the working state switching condition, send a working state switching command to the small cell base station in the energy-saving state, so that the small cell base station in the energy-saving state is The energy saving state is switched to the working state.
  • the device further includes: a quantity control module, configured to: when the at least one small cell base station does not meet the energy saving switching condition, reduce the And the number of the at least one small cell base station, until the reduced number of small cell base stations meet the energy saving handover condition, and sends a power saving handover command to the reduced number of small cell base stations, so that the reduced number of small cell base stations are covered
  • a quantity control module configured to: when the at least one small cell base station does not meet the energy saving switching condition, reduce the And the number of the at least one small cell base station, until the reduced number of small cell base stations meet the energy saving handover condition, and sends a power saving handover command to the reduced number of small cell base stations, so that the reduced number of small cell base stations are covered
  • the user switches to the macro base station, and when the user handover ends, the reduced number of small cell base stations enter a power saving state.
  • the power saving switching condition is that a total number of idle resource blocks of the macro base station is greater than a total number of occupied resource blocks of the at least one small cell base station, and the macro base
  • the downlink transmit power required by the station to provide services for the user covered by the at least one small cell base station is smaller than the downlink transmit power of the at least one small cell base station.
  • the device further includes: a third determining module, configured to: according to the location information of the macro base station serving user, and the small cell in the energy saving state Determining, by the location information of the base station, whether the number of users covered by the small cell base station in the energy-saving state is greater than a preset value;
  • the second determining module is configured to: when the number of users covered by the small cell base station in the energy-saving state is greater than a preset value, according to the location information of the small cell base station in the energy-saving state, the total number of idle resource blocks,
  • the small cell base station in the energy-saving state provides the downlink transmit power and the working state switching condition required for the user covered by the small cell base station to determine whether the small cell base station in the energy-saving state satisfies the working state switching condition.
  • the working state switching condition is that the total number of resource blocks used by the macro base station to provide services for a user covered by a small cell base station in a power saving state is smaller than The total number of idle resource blocks of the small cell base station in the energy-saving state, and the downlink base station used by the macro base station to provide services for users covered by the small cell base station in the energy-saving state is greater than the small-cell base station in the energy-saving state
  • the downlink transmit power used to provide services to the covered users.
  • the macro base station and the small cell base station perform signal transmission and reception through an Xm interface.
  • a base station in a third aspect, includes: a receiver, a transmitter, and a processor, where the receiver is configured to receive an energy-saving handover request sent by at least one small-cell base station, where each energy-saving handover request carries a a parameter information, the first parameter information at least: the total number of resource blocks occupied by the small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station being the small cell The downlink transmit power required by the user covered by the base station to provide the service;
  • the processor is configured to: according to the total number of resource blocks occupied by the small cell base station of each small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station Determining, by the user that is covered by the small cell base station, the downlink transmit power and the energy-saving handover condition required by the service, and determining whether the at least one small cell base station satisfies the energy-saving handover condition;
  • the transmitter is configured to: when the at least one small cell base station meets the energy saving handover condition, send a power saving handover command to the at least one small cell base station, so that the user covered by the at least one small cell base station switches to the The macro base station, when the user handover ends, the at least one small cell base station enters a power saving state.
  • the base station energy-saving method, the device, and the base station provided by the embodiment of the present invention receive the energy-saving handover request sent by the at least one small-cell base station by using the macro-base station, where each energy-saving handover request carries the first parameter information, where the first parameter information includes at least: The total number of resource blocks occupied by the small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmit power required by the macro base station to provide services for users covered by the small cell base station; The total number of resource blocks occupied by the small cell base station of each small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station providing the user covered by the small cell base station Determining whether the at least one small cell base station satisfies the energy saving switching condition when the at least one small cell base station satisfies the energy saving switching condition; and when the at least one small cell base station sati
  • the macro base station determines, according to the first parameter information of the at least one small cell and the energy saving switching condition, whether the at least one small cell base station can switch to the energy saving state, fully considering the load condition of the macro base station, to ensure that After the user of the at least one small cell base station is handed over to the macro base station, the macro base station can provide services for the user covered by the at least one small cell, which does not affect the normal service of the small cell base station user or the normal service of the macro base station user.
  • the overall energy consumption of the macro base station and the small cell base station is reduced, and the user communication experience and the throughput of the macro base station and the small cell base station are improved.
  • FIG. 1 is a flowchart of a method for saving a base station according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for saving a base station according to an embodiment of the present invention
  • 3 is a schematic structural diagram of a base station energy-saving device according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the execution entity of the embodiment of the present invention is a macro base station. Referring to FIG. 1, the method includes:
  • the macro base station receives the energy-saving handover request sent by the at least one small-cell base station, where each energy-saving handover request carries the first parameter information, where the first parameter information includes: at least: the total number of resource blocks occupied by the small-cell base station, and the small cell
  • each macro base station covers multiple The small cell base station, the macro base station and the small cell base station receive and transmit data in the form of radio waves, and the capability of the macro base station to receive and transmit radio waves is much higher than that of the small cell base station.
  • the power saving switching request is a request message that the small cell base station switches from the working state to the power saving state sent by the macro base station; the first parameter information is used by the macro base station to determine whether the small cell that sends the first parameter information can switch to the energy saving state. .
  • the resource block includes a virtual resource block and a physical resource block.
  • the base station calculates a physical resource block corresponding to the virtual resource block according to the relationship between the virtual resource block and the physical resource block, and maps the user data to the physical resource block. on.
  • the total number of resource blocks occupied by the small cell base station is the total number of physical resource blocks occupied by users served by the small cell base station.
  • the downlink transmission power refers to the power used when the small cell base station transmits a signal to the user who provides the service to the small cell base station.
  • the macro base station may send a power saving handover request, where the power saving handover request carries the first parameter information of the small cell base station, so that the macro base station receives the energy saving handover request. Then, it is determined according to the first parameter information whether the small cell base station can switch to the energy saving state.
  • the preset condition may be that the number of users that provide services for the small cell base station is less than the preset number, or that the downlink transmit power of the small cell base station to provide services to the covered users is less than the preset power, and the embodiment of the present invention does not specifically limited.
  • the total number of resource blocks occupied by the small cell base station of each small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station are Determining, by the user that is covered by the small cell base station, the downlink transmit power and the energy-saving handover condition required by the service, and determining whether the at least one small cell base station satisfies the energy-saving handover condition;
  • the macro base station acquires first parameter information of each small cell base station that sends the energy saving handover request according to the received energy saving handover request sent by the at least one small cell base station.
  • the macro base station determines, according to each parameter in the first parameter information of each small cell base station and some parameters in the macro base station, whether the at least one small cell base station satisfies the energy saving switching condition by using the calculation or comparison means.
  • the power saving switching condition is used by the macro base station to determine whether at least one small cell base station that sends the energy saving switching request can switch to the power saving state.
  • the energy-saving handover condition may be that the total number of resource blocks occupied by the at least one small-cell base station is smaller than the total number of resource blocks that are not used by the macro base station, for example, when the resource block occupied by the at least one small-cell base station is 10, the total number of unused resource blocks of the macro base station is 20
  • the macro base station may determine that the at least one small cell base station that sends the energy-saving handover request satisfies the energy-saving handover condition; the power-saving handover condition may further be that the downlink transmit power required by the at least one small-cell base station to provide services for the covered user is smaller than the macro base station is at least A downlink transmit power required by a user covered by a small cell base station to provide services, such as a downlink transmit power required for at least one small cell base station to provide services for a covered user
  • the macro base station may determine that at least one small cell base station that transmits the energy saving handover request does not satisfy the energy saving switching condition.
  • the energy-saving handover condition includes that the total number of resource blocks occupied by the at least one small cell base station is smaller than the total number of resource blocks not used by the macro base station, and the downlink transmission power occupied by the at least one small cell base station is less than that of the at least one small cell base station.
  • the covered user provides the downlink transmit power required by the service, so as to ensure that the macro base station has sufficient resource blocks after the handover to provide services for at least one small cell coverage user, and the switched macro base station and the at least one small cell base station are generally in energy.
  • the consumption is less than the energy consumption before switching.
  • the specific content of the energy-saving switching condition is not specifically limited in the embodiment of the present invention.
  • the macro base station when at least one small cell base station does not satisfy the energy saving handover condition, the macro base station does not send a power saving handover command to at least one small cell base station; or, the macro base station reduces the number of small cell base stations, and the selected part satisfies After the small cell with the energy-saving switching condition is sent to the small-cell base station that meets the energy-saving switching condition, the energy-saving switching condition is not limited in this embodiment of the present invention.
  • the power-saving handover command refers to a command that the macro base station sends to the small-cell base station to instruct the small-cell base station to switch from the working state to the power-saving state.
  • the macro base station may send the energy saving handover command to the at least one small cell base station through the interface between the macro base station and the small cell base station.
  • the small-cell base station After receiving the power-saving handover command, the small-cell base station switches the user covered by the small-cell base station to the macro base station, so that the macro base station can provide services for the user covered by the small-cell base station that switches to the energy-saving state. After the small cell base station switches the user to the macro base station, the small cell base station turns off the function of providing the external service.
  • the at least one small cell base station sends a power saving state message to the macro base station and the surrounding small cell base station, so that the macro base station and the surrounding small cell base station learn the at least one small cell base station.
  • some or all of the functional requests such as the function request of the relay message, are no longer sent to the at least one small cell base station.
  • the macro base station receives the energy-saving handover request sent by the at least one small-cell base station, and each energy-saving handover request carries the first parameter information, where the first parameter information includes at least: the small-cell base station The total number of occupied resource blocks, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmit power required by the macro base station to provide services for users covered by the small cell base station; The total number of resource blocks occupied by the small cell base station of the small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station required to provide services for users covered by the small cell base station And determining, by the downlink transmit power and the energy-saving handover condition, whether the at least one small cell base station satisfies a power-saving handover condition; and when the at least one small-cell base station satisfies the energy-
  • the macro base station determines, according to the first parameter information of the at least one small cell and the energy saving switching condition, whether the at least one small cell base station can switch to the energy saving state, fully considering the load condition of the macro base station, to ensure that After the user of the at least one small cell base station is handed over to the macro base station, the macro base station can provide services for the user covered by the at least one small cell, which does not affect the normal service of the small cell base station user or the normal service of the macro base station user.
  • the overall energy consumption of the macro base station and the small cell base station is reduced, and the user communication experience and the throughput of the macro base station and the small cell base station are improved.
  • 2 is a flowchart of a method for power saving a base station according to an embodiment of the present invention.
  • the execution entity of the embodiment of the present invention is a macro base station. Referring to FIG. 2, the method includes:
  • the small cell base station determines whether it meets the preset condition, and when the preset condition is met, sends a power saving switching request to the macro base station that covers the small cell base station, where the energy saving switching request carries the first parameter, and the first parameter information is at least
  • the method includes: a total number of resource blocks occupied by the small cell base station, a downlink transmit power of the small cell base station, a total number of users covered by the small cell base station, and a downlink transmission required by the macro base station to provide services for users covered by the small cell base station Power
  • the macro base station receives the energy saving handover request sent by the at least one small cell base station;
  • the macro base station and the small cell base station transmit and receive signals through the Xm interface, where the Xm interface is different from the existing interface, and the Xm interface is new in the macro base station and the small cell base station. Increased interface.
  • the macro base station receives the energy-saving handover request sent by the at least one small-cell base station through the Xm interface, and acquires the first parameter information according to the energy-saving handover request.
  • the macro base station is configured according to the total number of resource blocks occupied by the small cell base station of each small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station is the small cell.
  • the base station coverage user provides the downlink transmit power and the energy-saving handover condition required by the service, and determines whether the at least one small cell base station satisfies the energy-saving handover condition, and if yes, step 204 is performed, if no, step 203 is performed;
  • the power saving switching condition is that the total number of idle resource blocks of the macro base station is greater than the total number of occupied resource blocks of the at least one small cell base station, and the macro base station is required to provide services for users covered by the at least one small cell base station.
  • the downlink transmit power is less than the downlink transmit power of the at least one small cell base station.
  • the energy saving switching condition can be expressed by the following formula (1):
  • the PR unused _ macro is the total number of macro base station idle resource blocks, PRB used sm ; the total number of resource blocks used by the cell base station i, n is the number of small cell base stations that receive the transmitted energy-saving handover request, and N is n transmit energy-saving.
  • the total number of users covered by the handover requesting small cell base station is the downlink transmission power when the small cell base station provides the service to the user i, and /f is required after the user i that is covered by the small cell base station switches to the macro base station, and the macro base station provides the service.
  • the downlink transmit power is two design parameters, and ⁇ is the relationship and, that is, when the left part and the right part of the formula (1) ⁇ are simultaneously established, the at least one small cell base station satisfies the energy saving switching condition.
  • the macro base station uses the total number of resource blocks occupied by the small cell base station of the small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmit power required by the macro base station to provide services for users covered by the small cell base station.
  • the macro base station When the at least one small cell base station does not meet the power saving handover condition, the macro base station reduces the number of the at least one small cell base station, and performs step 202;
  • the at least one small cell base station when the at least one small cell base station does not satisfy the energy saving handover condition, reducing the number of the at least one small cell base station, until the reduced number of small cell base stations satisfy the energy saving handover condition, to the reduced number of small cells.
  • the base station sends a power-saving handover command, so that the user covered by the reduced number of small cell base stations switches to the macro base station, and when the user handover ends, the reduced number of small-cell base stations enter a power-saving state.
  • the macro base station reduces one small cell base station from the at least one small cell base station, and the macro base station determines, by step 202, whether the reduced number of small cell base stations meet the energy saving handover.
  • the energy-saving switching condition for the case where the energy-saving switching condition is not satisfied, the number of small-cell base stations is continuously reduced until the reduced-quantity small-cell base station satisfies the energy-saving switching condition.
  • the macro base station When the at least one small cell base station satisfies the power saving handover condition, the macro base station sends a power saving handover command to the at least one small cell base station, so that the user covered by the at least one small cell base station switches to the macro base station When the user handover ends, the at least one small cell base station enters a power saving state;
  • the macro base station determines that the at least one small cell base station satisfies the power-saving handover condition
  • the macro base station sends a power-saving handover command to the at least one small-cell base station, so that the at least one small-cell base station receives the energy-saving handover command, and the at least one small
  • the user covered by the cell base station switches to the macro base station.
  • the user switch ends, at least one small cell base station enters a power saving state, and the macro base station provides services for users covered by at least one small cell base station entering the power saving state.
  • the macro base station receives the second parameter information sent by the small cell base station in the power saving state, where the second parameter information includes: at least: the location information of the small cell base station in the energy saving state, the total number of idle resource blocks, and the energy saving
  • the second parameter information is used by the macro base station to determine whether any small cell base station in the power saving state is No switch to working status.
  • the second parameter information may be sent to the macro base station periodically by the small cell base station in the power saving state, or may be triggered when the macro base station provides the service to meet certain preset conditions.
  • the cell base station sends a second parameter acquisition command, so that the small cell base station in the energy-saving state sends the second parameter information to the macro base station after receiving the second parameter acquisition command.
  • the preset condition is that the number of users providing services by the macro base station exceeds the preset number 100, the macro base station sends a second parameter acquisition command to the small cell base station in the power saving state.
  • the embodiments of the present invention are not specifically limited.
  • the preset value is used to determine whether the macro base station determines that the small cell base station in the energy-saving state satisfies the working state condition.
  • the macro eNB obtains the coverage of the small cell base station according to the location information of the small cell base station in the power saving state, and determines the current coverage of the small cell base station in the energy saving state by the coverage of the small cell base station to which the location information of the user served by the macro eNB belongs. The number of users covered.
  • the macro base station continues to determine whether the number of users covered by the small cell base station in the energy-saving state is less than a preset value.
  • the macro base station When the number of users covered by the small cell base station in the energy-saving state is greater than a preset value, the macro base station is configured according to the location information of the small cell base station in the energy-saving state, the total number of idle resource blocks, and the small-cell base station in the energy-saving state.
  • the downlink transmit power and the working state switching condition required by the user that is provided by the small cell base station to provide a service, and determine whether the small cell base station in the energy-saving state satisfies the working state switching condition;
  • the working state switching condition is that the total number of resource blocks used by the macro base station to provide services for users covered by the small cell base station in the power saving state is smaller than the total number of idle resource blocks of the small cell base station in the power saving state, and the macro base is used.
  • the downlink transmit power used by the station to provide services for users covered by the small cell base station in the energy-saving state is greater than the downlink transmit power used by the small-cell base station in the energy-saving state to provide services for the covered users.
  • the working state switching condition can be expressed by the following formula (2):
  • the PRi a ii is the total number of resource blocks used by the user covered by the small cell base station i of the user served by the macro base station
  • PR ⁇ — is the total number of idle resource blocks of the small cell base station i
  • M is the small and medium cell of the user that the macro base station provides the service.
  • the total number of users covered by the base station i is the downlink transmission power required by the user j covered by the small cell base station i of the user served by the macro base station
  • Pj is the downlink transmission power required for the small cell base station i to provide the service for the user j
  • ⁇ Two design parameters, ⁇ is the relationship and, that is, when the formula to the left of ⁇ and the formula on the right are simultaneously established, the working conditions are satisfied.
  • the macro base station brings the parameters such as the total number of idle resource blocks of the small cell base station in the energy-saving state, and the downlink transmit power required for the small cell base station to provide services for the user covered by the small cell base station, to the above formula ( 2) If the result obtained by the calculation is 1, it can be determined that the small cell base station satisfies the working state switching condition; if the result obtained by the calculation is 0, it can be determined that the small cell base station does not satisfy the working state switching condition.
  • the macro base station does not send the working state switching condition to the small cell base station in the energy-saving state, and the small-cell base station in the energy-saving state still maintains the current status.
  • Steps 206-207 are: performing downlink service power and working state switching required for the service provided by the small cell base station in the energy-saving state for the user covered by the small cell base station according to the location information of the small cell base station in the energy-saving state, the total number of idle resource blocks, and the small cell base station in the energy-saving state.
  • Condition determining whether the small cell base station in the energy-saving state satisfies the working state switching condition.
  • the working state switching command refers to a command used by the macro base station to indicate that the small cell base station in the power saving state is switched from the power saving state to the working state.
  • the macro base station If the small cell base station in the power saving state satisfies the working state switching condition, the macro base station sends a working state switching command to the small cell base station in the energy saving state.
  • the small cell base station in the energy-saving state switches from the energy-saving state to the working state, and the user that the macro base station provides the service belongs to the user covered by the small-cell base station, and the user belongs to the small-cell base station.
  • the user covered by the small cell base station provides services.
  • the little one The regional base station sends a status message to the surrounding small cell base station, so that the surrounding small cell base station knows the working state of the small cell base station, and further can send a functional request message to the small cell base station.
  • the macro base station receives the energy-saving handover request sent by the at least one small-cell base station, and each energy-saving handover request carries the first parameter information, where the first parameter information includes at least: the small-cell base station The total number of occupied resource blocks, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmit power required by the macro base station to provide services for users covered by the small cell base station; The total number of resource blocks occupied by the small cell base station of the small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station required to provide services for users covered by the small cell base station And determining, by the downlink transmit power and the energy-saving handover condition, whether the at least one small cell base station satisfies a power-saving handover condition; and when the at least one small-cell base station satisfies the energy-
  • the macro base station determines, according to the first parameter information of the at least one small cell and the energy saving switching condition, whether the at least one small cell base station can switch to the energy saving state, fully considering the load condition of the macro base station, to ensure that After the user of the at least one small cell base station is handed over to the macro base station, the macro base station can provide services for the user covered by the at least one small cell, which does not affect the normal service of the small cell base station user or the normal service of the macro base station user.
  • the overall energy consumption of the macro base station and the small cell base station is reduced, and the user communication experience and the throughput of the macro base station and the small cell base station are improved.
  • FIG. 3 is a schematic structural diagram of a base station energy-saving device according to an embodiment of the present invention. Referring to FIG. 3, the device includes:
  • the first receiving module 301 is configured to receive the energy-saving switching request sent by the at least one small-cell base station, where the energy-saving switching request carries the first parameter information, where the first parameter information includes: at least: the total number of resource blocks occupied by the small-cell base station, The downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmit power required by the macro base station to provide services for users covered by the small cell base station;
  • the first determining module 302 is configured to occupy, according to the small cell base station of each small cell base station The total number of resource blocks, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmit power and energy-saving handover conditions required for the macro base station to provide services for users covered by the small cell base station, Determining whether at least one small cell base station satisfies a power saving switching condition;
  • the first sending module 303 is configured to: when the at least one small cell base station meets the energy saving switching condition, send a power saving handover command to the at least one small cell base station, so that the user covered by the at least one small cell base station switches to The macro base station, when the user handover ends, the at least one small cell base station enters a power saving state.
  • the device also includes:
  • the second receiving module 304 is configured to receive the second parameter information that is sent by the small cell base station in the power saving state, where the second parameter information includes: at least: the location information of the small cell base station in the energy saving state, and the idle resource block.
  • the second judging module 305 is configured to: according to the location information of the small cell base station in the energy saving state, the total number of idle resource blocks, and the downlink transmission required by the small cell base station in the energy saving state to provide services for the user covered by the small cell base station a power and working state switching condition, determining whether the small cell base station in the energy saving state meets a working state switching condition;
  • the second sending module 306 is configured to: if the small cell base station in the energy-saving state meets the working state switching condition, send a working state switching command to the small cell base station in the energy-saving state, so that the small-cell base station in the energy-saving state Switch from energy saving state to working state.
  • the device also includes:
  • the quantity control module 307 is configured to: when the at least one small cell base station does not meet the power saving handover condition, reduce the number of the at least one small cell base station, until the reduced number of small cell base stations meet the energy saving switching condition, And transmitting, by the reduced number of small cell base stations, a power saving handover command, so that the user covered by the reduced number of small cell base stations switches to the macro base station, and when the user handover ends, the reduced number of small cell base stations Enter the energy saving state.
  • the energy-saving handover condition is that the total number of idle resource blocks of the macro base station is greater than the total number of occupied resource blocks of the at least one small cell base station, and the macro base station provides downlink for the user covered by the at least one small cell base station.
  • the transmit power is less than the downlink transmit power of the at least one small cell base station.
  • the device also includes:
  • a third determining module 308 configured to: according to the location information of the macro base station serving user, and the And determining, by the location information of the small cell base station in the energy saving state, whether the number of users covered by the small cell base station in the energy saving state is greater than a preset value;
  • the second determining module 305 is configured to: when the number of users covered by the small cell base station in the energy-saving state is greater than a preset value, according to the location information of the small cell base station in the energy-saving state, and the total number of idle resource blocks. And determining, by the small cell base station in the energy-saving state, the downlink transmit power and the working state switching condition required for the user of the small cell base station to provide a service, and determining whether the small cell base station in the energy-saving state satisfies the working state switching condition.
  • the working state switching condition is that the total number of resource blocks used by the macro base station to provide services for users covered by the small cell base station in the power saving state is smaller than the total number of idle resource blocks of the small cell base station in the energy saving state, and the The downlink transmit power used by the macro base station to provide services for users covered by the small cell base station in the energy-saving state is greater than the downlink transmit power used when the small-cell base station in the energy-saving state provides services for the covered user.
  • the macro base station and the small cell base station transmit and receive signals through the Xm interface.
  • the base station energy-saving device provided by the embodiment of the present invention, the macro-base station receives the energy-saving handover request sent by the at least one small-cell base station, and each energy-saving handover request carries the first parameter information, where the first parameter information includes: the small-cell base station The total number of occupied resource blocks, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmit power required by the macro base station to provide services for users covered by the small cell base station; The total number of resource blocks occupied by the small cell base station of the small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station required to provide services for users covered by the small cell base station And determining, by the downlink transmit power and the energy-saving handover condition, whether the at least one small cell base station satisfies a power-saving handover condition; and when the at least one small-cell base station satisfies the energy-
  • the macro base station determines, according to the first parameter information of the at least one small cell and the energy saving switching condition, whether the at least one small cell base station can switch to the energy saving state, fully considering the load condition of the macro base station, to ensure that After the user of the at least one small cell base station is handed over to the macro base station, the macro base station can provide services for the user covered by the at least one small cell, which does not affect the normal service of the small cell base station user or the normal service of the macro base station user.
  • the overall energy consumption of the macro base station and the small cell base station is reduced, and the user communication experience and the throughput of the macro base station and the small cell base station are improved.
  • the macro base station determines the small energy-saving state by switching the condition according to the second parameter information and the working state. Whether the area base station switches from the energy saving state to the working state improves the timeliness and flexibility of the small cell state switching.
  • 4 is a schematic structural diagram of a base station according to an embodiment of the present invention. Referring to FIG. 4, the base station includes: a receiver 401, a processor 402, and a transmitter 403.
  • the receiver 401 is configured to receive the energy-saving handover request sent by the at least one small-cell base station, where the energy-saving handover request carries the first parameter information, where the first parameter information includes: at least: the total number of resource blocks occupied by the small-cell base station, The downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmit power required by the macro base station to provide services for users covered by the small cell base station;
  • the processor 402 is configured to: according to the total number of resource blocks occupied by the small cell base station of each small cell base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the macro base station Determining, by the user covered by the small cell base station, the downlink transmit power and the energy-saving handover condition required by the service, and determining whether the at least one small cell base station satisfies the energy-saving handover condition;
  • the transmitter 403 is configured to: when the at least one small cell base station meets the energy saving handover condition, send a power saving handover command to the at least one small cell base station, so that the user covered by the at least one small cell base station switches to The macro base station, when the user handover ends, the at least one small cell base station enters a power saving state.
  • the receiver 401 is further configured to receive the second parameter information that is sent by the small cell base station in the power saving state, where the second parameter information includes: at least: the location information of the small cell base station in the energy saving state, and the idle resource.
  • the processor 402 is further configured to: according to the location information of the small cell base station in the power saving state, the total number of idle resource blocks, and the downlink required by the small cell base station in the energy saving state to provide services for the user covered by the small cell base station Transmitting power and working state switching conditions, determining whether the small cell base station in the energy saving state satisfies a working state switching condition;
  • the transmitter 403 is further configured to: if the small cell base station in the energy-saving state meets the working state switching condition, send a working state switching command to the small cell base station in the energy-saving state, so that the small cell in the energy-saving state The base station switches from the energy saving state to the working state.
  • the processor 402 is further configured to: when the at least one small cell base station does not meet the power saving handover condition, reduce the number of the at least one small cell base station until the reduced number of small cell base stations And satisfying the energy-saving switching condition, sending, to the reduced number of small cell base stations, a power-saving handover command, so that the user covered by the reduced number of small-cell base stations switches to the macro base station, when the user handover ends, The reduced number of small cell base stations enter a power saving state.
  • the energy-saving handover condition is that the total number of idle resource blocks of the macro base station is greater than the total number of occupied resource blocks of the at least one small cell base station, and the macro base station provides downlink for the user covered by the at least one small cell base station.
  • the transmit power is less than the downlink transmit power of the at least one small cell base station.
  • the processor 402 is further configured to determine, according to the location information of the macro base station serving user and the location information of the small cell base station in the power saving state, whether the number of users covered by the small cell base station in the energy saving state is greater than a pre Set value
  • the processor 402 is further configured to: when the number of users covered by the small cell base station in the energy-saving state is greater than a preset value, according to the location information of the small cell base station in the energy-saving state, the total number of idle resource blocks,
  • the small cell base station in the energy-saving state provides the downlink transmit power and the working state switching condition required for the user covered by the small cell base station to determine whether the small cell base station in the energy-saving state satisfies the working state switching condition.
  • the working state switching condition is that the total number of resource blocks used by the macro base station to provide services for users covered by the small cell base station in the power saving state is smaller than the total number of idle resource blocks of the small cell base station in the energy saving state, and the The downlink transmit power used by the macro base station to provide services for users covered by the small cell base station in the energy-saving state is greater than the downlink transmit power used when the small-cell base station in the energy-saving state provides services for the covered user.
  • the macro base station and the small cell base station transmit and receive signals through the Xm interface.
  • the base station provided by the embodiment of the present invention receives the energy-saving handover request sent by the at least one small-cell base station by using the macro-base station, and each energy-saving handover request carries the first parameter information, where the first parameter information includes: at least: the small-cell base station occupies resources The total number of blocks, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmit power required by the macro base station to provide services for users covered by the small cell base station; The total number of resource blocks occupied by the small cell base station of the base station, the downlink transmit power of the small cell base station, the total number of users covered by the small cell base station, and the downlink transmission required by the macro base station to provide services for users covered by the small cell base station And determining, by the power and the energy-saving switching condition, whether the at least one small cell base station satisfies the energy-saving switching condition
  • the macro base station determines, according to the first parameter information of the at least one small cell and the energy saving switching condition, whether the at least one small cell base station can switch to the energy saving state, fully considering the load condition of the macro base station, to ensure that After the user of the at least one small cell base station is handed over to the macro base station, the macro base station can provide normal service for the user covered by the at least one small cell, which does not affect the normal service of the small cell base station user or the normal service of the macro base station user. The overall energy consumption of the macro base station and the small cell base station is reduced, and the user communication experience and the throughput of the macro base station and the small cell base station are improved. Further, the macro base station determines whether the small cell base station in the energy-saving state is switched from the energy-saving state to the working state according to the second parameter information and the working state switching condition, thereby improving the timeliness and flexibility of the small-cell state switching.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明实施例提供了一种基站节能方法、装置和基站，涉及通信技术领域，所述方法包括：宏基站接收至少一个小小区基站发送的节能切换请求，每个节能切换请求携带第一参数信息；根据所述第一参数信息和节能切换条件，判断所述至少一个小小区基站是否满足节能切换条件；当所述至少一个小小区基站满足所述节能切换条件时，向所述至少一个小小区基站发送节能切换命令，使得所述至少一个小小区基站进入节能状态。本发明通过宏基站根据至少一个小小区的第一参数信息和节能切换条件，判断至少一个小小区基站是否能够切换到节能状态，充分考虑了宏基站的负载条件，以保证宏基站可以为至少一个小小区覆盖的用户正常提供服务。

Description

基站节能方法、 装置和基站 技术领域
本发明涉及通信技术领域， 特别涉及一种基站节能方法、 装置和基站。 背景技术
随着智能手机的快速发展， 用户对 3G网络服务的需求越来越大。 为了应 对由此带来的移动数据业务流量的急剧增长，运营商部署了大量的宏基站和小 小区基站，增加 3G网络整体服务性能， 以便于用户享受到高速率的数据业务。 大规模部署宏基站和小小区基站， 虽然可以提高 3G网络整体服务性能， 但是 不可避免地造成了能量的浪费， 所以， 如何在提高服务性能的同时， 避免能量 浪费成为一个重要的问题。
现有技术中， 当一个基站（小小区基站）的网络业务流量较低时， 将其用 户切换到其他的基站， 而该基站本身进入节能状态， 在其他基站发生拥塞或过 载时， 就会向该处于节能状态的基站发工作状态唤醒指示， 使得该处于节能状 态的基站进入工作状态。
在实现本发明的过程中， 发明人发现现有技术至少存在以下问题： 现有技术中，基站通过对自身的网络业务流量进行判断来确定是否进入节 能状态， 没有考虑到周围相邻的基站的负载能力， 当该基站将用户切换至周围 相邻的基站时， 可能对其他基站的正常业务造成影响， 而一旦其他的基站不能 够承载该基站的用户时， 会造成用户业务的延迟甚至中断。 发明内容
为了保证节能切换过程中用户业务的正常进行， 本发明实施例提供了一种 基站节能方法、 装置和基站。 所述技术方案如下：
第一方面， 提供了一种基站节能方法， 所述方法包括：
宏基站接收至少一个小小区基站发送的节能切换请求，每个节能切换请求 携带第一参数信息， 所述第一参数信息至少包括： 所述小小区基站占用资源块 总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏 基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率；
根据所述每个小小区基站的所述小小区基站占用资源块总数、所述小小区 基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏基站为所述小小区 基站覆盖的用户提供服务所需要的下行发射功率和节能切换条件， 判断所述至 少一个小小区基站是否满足节能切换条件；
当所述至少一个小小区基站满足所述节能切换条件时， 向所述至少一个小 小区基站发送节能切换命令，使得所述至少一个小小区基站覆盖的用户切换至 所述宏基站， 当用户切换结束时， 所述至少一个小小区基站进入节能状态。
结合第一方面， 本发明实施例的第一种可能实现方式中， 当所述至少一个 小小区基站满足所述节能切换条件时， 向所述至少一个小小区基站发送节能切 换命令之后， 所述方法还包括：
接收任一个处于节能状态的小小区基站发送的第二参数信息， 所述第二参 数信息至少包括： 所述处于节能状态的小小区基站的位置信息、 空闲资源块总 数、处于节能状态的小小区基站为所述处于节能状态的小小区基站覆盖的用户 提供服务所需要的下行发射功率；
根据所述处于节能状态的小小区基站的位置信息、 空闲资源块总数、 处于 节能状态的小小区基站为所述小小区基站覆盖的用户提供服务所需要的下行 发射功率和工作状态切换条件， 判断所述处于节能状态的小小区基站是否满足 工作状态切换条件；
如果所述处于节能状态的小小区基站满足工作状态切换条件， 向所述处于 节能状态的小小区基站发送工作状态切换命令，使得所述处于节能状态的小小 区基站从节能状态切换为工作状态。
结合第一方面， 本发明实施例的第二种可能实现方式中， 根据所述小小区 基站的所述小小区基站占用资源块总数、 所述小小区基站的下行发射功率、 所 述小小区基站覆盖的用户总数、宏基站服务为所述小小区基站覆盖的用户提供 服务所需要的下行发射功率和节能切换条件， 判断所述小小区基站是否满足节 能切换条件之后， 所述方法还包括：
当所述至少一个小小区基站不满足所述节能切换条件时， 减少所述至少一 个小小区基站的数量， 直到减少数量后的小小区基站满足所述节能切换条件， 向所述减少数量后的小小区基站发送节能切换命令，使得所述减少数量后的 d、 小区基站覆盖的用户切换至所述宏基站， 当用户切换结束时， 所述减少数量后 的小小区基站进入节能状态。
结合第一方面， 本发明实施例的第三种可能实现方式中， 所述节能切换条 件为宏基站的空闲资源块的总数大于所述至少一个小小区基站的占用资源块 总数，且所述宏基站为所述至少一个小小区基站覆盖的用户提供服务所需要的 下行发射功率小于所述至少一个小小区基站的下行发射功率。
结合第一方面， 本发明实施例的第四种可能实现方式中， 接收任一个处于 节能状态的小小区基站发送的第二参数信息， 所述第二参数信息至少包括： 所 述处于节能状态的小小区基站的位置信息、 空闲资源块总数、 处于节能状态的 小小区基站为所述处于节能状态的小小区基站覆盖的用户提供服务所需要的 下行发射功率之后， 所述方法还包括：
根据所述宏基站服务用户的位置信息和所述处于节能状态的小小区基站 的位置信息， 判断所述处于节能状态的小小区基站覆盖的用户数是否大于预设 值；
相应地， 根据所述处于节能状态的小小区基站的位置信息、 空闲资源块总 数、处于节能状态的小小区基站为所述小小区基站覆盖的用户提供服务所需要 的下行发射功率和工作状态切换条件， 判断所述处于节能状态的小小区基站是 否满足工作状态切换条件， 包括：
当所述处于节能状态的小小区基站覆盖的用户数大于预设值，根据所述处 于节能状态的小小区基站的位置信息、 空闲资源块总数、 处于节能状态的小小 区基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和工作 状态切换条件， 判断所述处于节能状态的小小区基站是否满足工作状态切换条 件。
结合第一方面， 本发明实施例的第五种可能实现方式中， 所述工作状态切 换条件为所述宏基站为处于节能状态的小小区基站覆盖的用户提供服务时所 使用的资源块总数小于所述处于节能状态的小小区基站的空闲资源块总数， 且 所述宏基站为处于节能状态的小小区基站覆盖的用户提供服务时所使用的下 行发射功率大于所述处于节能状态的小小区基站为覆盖的用户提供服务时所 使用的下行发射功率。
结合第一方面， 本发明实施例的第六种可能实现方式中， 所述宏基站和小 小区基站之间通过 Xm接口进行信号的发送和接收。
第二方面， 提供了一种基站节能装置， 所述装置包括： 第一接收模块， 用于接收至少一个小小区基站发送的节能切换请求， 每个 节能切换请求携带第一参数信息， 所述第一参数信息至少包括： 所述小小区基 站占用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的 用户总数、宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功 率；
第一判断模块， 用于根据所述每个小小区基站的所述小小区基站占用资源 块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和节能 切换条件， 判断所述至少一个小小区基站是否满足节能切换条件；
第一发送模块， 用于当所述至少一个小小区基站满足所述节能切换条件 时， 向所述至少一个小小区基站发送节能切换命令， 使得所述至少一个小小区 基站覆盖的用户切换至所述宏基站， 当用户切换结束时， 所述至少一个小小区 基站进入节能状态。
结合第二方面，本发明实施例的第二种可能实现方式中，所述装置还包括： 第二接收模块， 用于接收任一个处于节能状态的小小区基站发送的第二参 数信息， 所述第二参数信息至少包括： 所述处于节能状态的小小区基站的位置 信息、 空闲资源块总数、 处于节能状态的小小区基站为所述处于节能状态的小 小区基站覆盖的用户提供服务所需要的下行发射功率；
第二判断模块， 用于根据所述处于节能状态的小小区基站的位置信息、 空 闲资源块总数、处于节能状态的小小区基站为所述小小区基站覆盖的用户提供 服务所需要的下行发射功率和工作状态切换条件， 判断所述处于节能状态的小 小区基站是否满足工作状态切换条件；
第二发送模块， 用于如果所述处于节能状态的小小区基站满足工作状态切 换条件， 向所述处于节能状态的小小区基站发送工作状态切换命令， 使得所述 处于节能状态的小小区基站从节能状态切换为工作状态。
结合第二方面，本发明实施例的第三种可能实现方式中，所述装置还包括： 数量控制模块， 用于当所述至少一个小小区基站不满足所述节能切换条件 时， 减少所述至少一个小小区基站的数量， 直到减少数量后的小小区基站满足 所述节能切换条件， 向所述减少数量后的小小区基站发送节能切换命令， 使得 所述减少数量后的小小区基站覆盖的用户切换至所述宏基站， 当用户切换结束 时， 所述减少数量后的小小区基站进入节能状态。 结合第二方面， 本发明实施例的第四种可能实现方式中， 所述节能切换条 件为宏基站的空闲资源块的总数大于所述至少一个小小区基站的占用资源块 总数，且所述宏基站为所述至少一个小小区基站覆盖的用户提供服务所需要的 下行发射功率小于所述至少一个小小区基站的下行发射功率。
结合第二方面，本发明实施例的第五种可能实现方式中，所述装置还包括： 第三判断模块， 用于根据所述宏基站服务用户的位置信息和所述处于节能 状态的小小区基站的位置信息， 判断所述处于节能状态的小小区基站覆盖的用 户数是否大于预设值；
相应地， 所述第二判断模块， 用于当所述处于节能状态的小小区基站覆盖 的用户数大于预设值， 根据所述处于节能状态的小小区基站的位置信息、 空闲 资源块总数、处于节能状态的小小区基站为所述小小区基站覆盖的用户提供服 务所需要的下行发射功率和工作状态切换条件， 判断所述处于节能状态的小小 区基站是否满足工作状态切换条件。
结合第二方面， 本发明实施例的第六种可能实现方式中， 所述工作状态切 换条件为所述宏基站为处于节能状态的小小区基站覆盖的用户提供服务时所 使用的资源块总数小于所述处于节能状态的小小区基站的空闲资源块总数， 且 所述宏基站为处于节能状态的小小区基站覆盖的用户提供服务时所使用的下 行发射功率大于所述处于节能状态的小小区基站为覆盖的用户提供服务时所 使用的下行发射功率。
结合第二方面， 本发明实施例的第七种可能实现方式中， 所述宏基站和小 小区基站之间通过 Xm接口进行信号的发送和接收。
第三方面， 提供了一种基站， 所述基站包括： 接收器、 发射器和处理器， 所述接收器， 用于接收至少一个小小区基站发送的节能切换请求， 每个节 能切换请求携带第一参数信息， 所述第一参数信息至少包括： 所述小小区基站 占用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用 户总数、 宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功 率；
所述处理器， 用于根据所述每个小小区基站的所述小小区基站占用资源块 总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏 基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和节能切 换条件， 判断所述至少一个小小区基站是否满足节能切换条件； 所述发射器， 用于当所述至少一个小小区基站满足所述节能切换条件时， 向所述至少一个小小区基站发送节能切换命令，使得所述至少一个小小区基站 覆盖的用户切换至所述宏基站， 当用户切换结束时， 所述至少一个小小区基站 进入节能状态。
本发明实施例提供的技术方案的有益效果是：
本发明实施例提供的基站节能方法、 装置和基站， 通过宏基站接收至少一 个小小区基站发送的节能切换请求， 每个节能切换请求携带第一参数信息， 所 述第一参数信息至少包括： 所述小小区基站占用资源块总数、 所述小小区基站 的下行发射功率、 所述小小区基站覆盖的用户总数、 宏基站为所述小小区基站 覆盖的用户提供服务所需要的下行发射功率； 根据所述每个小小区基站的所述 小小区基站占用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基 站覆盖的用户总数、宏基站为所述小小区基站覆盖的用户提供服务所需要的下 行发射功率和节能切换条件， 判断所述至少一个小小区基站是否满足节能切换 条件； 当所述至少一个小小区基站满足所述节能切换条件时， 向所述至少一个 小小区基站发送节能切换命令，使得所述至少一个小小区基站覆盖的用户切换 至所述宏基站， 当用户切换结束时， 所述至少一个小小区基站进入节能状态。 采用本发明提供的技术方案，宏基站根据至少一个小小区的第一参数信息和节 能切换条件， 判断至少一个小小区基站是否能够切换到节能状态， 充分考虑了 宏基站的负载条件， 以保证将至少一个小小区基站覆盖的用户切换到宏基站 后， 宏基站可以为至少一个小小区覆盖的用户正常提供服务， 既不影响小小区 基站用户的正常业务， 也不影响宏基站用户的正常业务， 降低了宏基站和小小 区基站总体的能量消耗， 提高了用户通信体验和宏基站和小小区基站的吞吐 量。 附图说明
为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例描述中所 需要使用的附图作筒单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明 的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 1是本发明实施例中提供的一种基站节能方法流程图；
图 2是本发明实施例中提供的一种基站节能方法流程图； 图 3是本发明实施例中提供的一种基站节能装置结构示意图； 图 4是本发明实施例中提供的一种基站结构示意图。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明 实施方式作进一步地详细描述。
图 1是本发明实施例中提供的一种基站节能方法流程图， 本发明实施例的 执行主体是宏基站， 参见图 1 , 该方法包括：
101 : 宏基站接收至少一个小小区基站发送的节能切换请求， 每个节能切 换请求携带第一参数信息， 所述第一参数信息至少包括： 所述小小区基站占用 资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户总 数、 宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率； 在本发明实施例中， 每个宏基站覆盖多个小小区基站， 宏基站和小小区基 站以无线电波的形式接收和发送数据，宏基站接收和发送无线电波的能力远远 高于小小区基站。
其中， 节能切换请求是指小小区基站向宏基站发送的从工作状态切换到节 能状态的请求消息； 第一参数信息用于宏基站判断发送该第一参数信息的小小 区是否能够切换到节能状态。
其中， 资源块包括虚拟资源块和物理资源块， 在通信过程中， 基站根据虚 拟资源块和物理资源块的关系， 计算出虚拟资源块对应的物理资源块， 将用户 的数据映射到物理资源块上。 小小区基站占用的资源块总数是小小区基站提供 服务的用户所占用的物理资源块的总数。 下行发射功率是指小小区基站向该小 、区基站提供服务的用户发送信号时使用的功率。
优选地， 当小小区基站满足小小区自身的预设条件时， 可以向宏基站发送 节能切换请求， 该节能切换请求携带小小区基站的第一参数信息， 使得宏基站 在接收到该节能切换请求后，根据第一参数信息判断该小小区基站是否能够切 换到节能状态。该预设条件可以是小小区基站提供服务的用户数量小于预设数 量， 也可以是小小区基站向覆盖的用户提供服务时的下行发射功率小于预设功 率， 对此， 本发明实施例不作具体限定。
102: 根据所述每个小小区基站的所述小小区基站占用资源块总数、 所述 小小区基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏基站为所述 小小区基站覆盖的用户提供服务所需要的下行发射功率和节能切换条件， 判断 所述至少一个小小区基站是否满足节能切换条件；
宏基站根据接收到的至少一个小小区基站发送的节能切换请求， 获取发送 节能切换请求的每个小小区基站的第一参数信息。宏基站根据每个小小区基站 的第一参数信息中的各个参数和宏基站中的部分参数， 通过计算或者比较的手 段判断至少一个小小区基站是否满足节能切换条件。
其中， 节能切换条件用于宏基站判断发送节能切换请求的至少一个小小区 基站是否能够切换到节能状态。该节能切换条件可以是至少一个小小区基站占 用的资源块总数小于宏基站未使用的资源块总数，如当至少一个小小区基站占 用的资源块为 10, 宏基站未使用的资源块总数为 20时， 宏基站可以确定发送 节能切换请求的至少一个小小区基站满足节能切换条件； 该节能切换条件还可 以是至少一个小小区基站为覆盖的用户提供服务所需要的下行发射功率小于 宏基站为至少一个小小区基站覆盖的用户提供服务所需要的下行发射功率， 如 当至少一个小小区基站为覆盖的用户提供服务所需要的下行发射功率为 50mw, 宏基站为至少一个小小区基站覆盖的用户提供服务所需要的下行发射 功率 lOOmw时， 宏基站可以确定发送节能切换请求的至少一个小小区基站不 满足节能切换条件。 优选地， 该节能切换条件既要包括至少一个小小区基站占 用的资源块总数小于宏基站未使用的资源块总数，也要包括至少一个小小区基 站占用的下行发射功率小于为至少一个小小区基站覆盖的用户提供服务所需 要的下行发射功率， 这样才能保证切换后宏基站有充分的资源块为至少一个小 小区覆盖的用户提供服务， 且切换后宏基站和至少一个小小区基站总体上在能 量消耗上要小于切换前的能量消耗。 对于节能切换条件的具体内容， 本发明实 施例不作具体限定。
需要说明的是， 当至少一个小小区基站不满足所述节能切换条件时， 宏基 站则不向至少一个小小区基站发送节能切换命令； 或， 宏基站减少小小区基站 的数量， 选出部分满足节能切换条件的小小区后， 向满足节能切换条件的小小 区基站发送节能切换条件， 对此， 本发明实施例不作具体限定。
103: 当所述至少一个小小区基站满足所述节能切换条件时， 向所述至少 一个小小区基站发送节能切换命令，使得所述至少一个小小区基站覆盖的用户 切换至所述宏基站， 当用户切换结束时， 所述至少一个小小区基站进入节能状 态。 其中， 节能切换命令是指宏基站发送给小小区基站的用于指示小小区基站 从工作状态切换到节能状态的命令。
当宏基站根据第一参数信息确定至少一个小小区基站满足节能切换条件 时，宏基站可以通过宏基站和小小区基站之间的接口向至少一个小小区基站发 送节能切换命令。
小小区基站在接收到该节能切换命令后， 将小小区基站覆盖的用户切换至 宏基站， 使得宏基站能够为切换到节能状态的小小区基站覆盖的用户提供服 务。 在小小区基站将用户切换至宏基站后， 该小小区基站关闭对外提供服务的 功能。
可选地， 在至少一个小小区基站切换到节能状态后， 至少一个小小区基站 向宏基站和周围的小小区基站发送节能状态消息，使得宏基站和周围小小区基 站获知该至少一个小小区基站当前的状态， 不再向该至少一个小小区基站发送 部分或者全部的功能性请求， 如中转消息的功能请求。
本发明实施例提供的基站节能方法，通过宏基站接收至少一个小小区基站 发送的节能切换请求， 每个节能切换请求携带第一参数信息， 所述第一参数信 息至少包括： 所述小小区基站占用资源块总数、 所述小小区基站的下行发射功 率、 所述小小区基站覆盖的用户总数、 宏基站为所述小小区基站覆盖的用户提 供服务所需要的下行发射功率； 根据所述每个小小区基站的所述小小区基站占 用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户 总数、宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和 节能切换条件， 判断所述至少一个小小区基站是否满足节能切换条件； 当所述 至少一个小小区基站满足所述节能切换条件时， 向所述至少一个小小区基站发 送节能切换命令， 使得所述至少一个小小区基站覆盖的用户切换至所述宏基 站， 当用户切换结束时， 所述至少一个小小区基站进入节能状态。 采用本发明 提供的技术方案， 宏基站根据至少一个小小区的第一参数信息和节能切换条 件， 判断至少一个小小区基站是否能够切换到节能状态， 充分考虑了宏基站的 负载条件， 以保证将至少一个小小区基站覆盖的用户切换到宏基站后， 宏基站 可以为至少一个小小区覆盖的用户正常提供服务， 既不影响小小区基站用户的 正常业务， 也不影响宏基站用户的正常业务， 降低了宏基站和小小区基站总体 的能量消耗， 提高了用户通信体验和宏基站和小小区基站的吞吐量。 图 2是本发明实施例中提供的一种基站节能方法流程图， 本发明实施例的 执行主体是宏基站， 参见图 2, 该方法包括：
200: 小小区基站判断自身是否满足预设条件， 当满足预设条件时， 向覆 盖该小小区基站的宏基站发送节能切换请求， 该节能切换请求携带第一参数， 所述第一参数信息至少包括： 所述小小区基站占用资源块总数、 所述小小区基 站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏基站为所述小小区基 站覆盖的用户提供服务所需要的下行发射功率；
201: 宏基站接收至少一个小小区基站发送的节能切换请求；
优选地， 在本发明实施例中， 宏基站和小小区基站之间通过 Xm接口进行 信号的发送和接收， 该 Xm接口不同于已有的接口， 该 Xm接口是在宏基站和 小小区基站新增的接口。宏基站通过 Xm接口接收至少一个小小区基站发送的 节能切换请求， 并根据该节能切换请求获取第一参数信息。
202: 宏基站根据所述每个小小区基站的所述小小区基站占用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏基站为 所述小小区基站覆盖的用户提供服务所需要的下行发射功率和节能切换条件， 判断所述至少一个小小区基站是否满足节能切换条件，如果是，执行步骤 204, 如果否执行步骤 203;
优选地， 节能切换条件为宏基站的空闲资源块的总数大于所述至少一个小 小区基站的占用资源块总数，且所述宏基站为所述至少一个小小区基站覆盖的 用户提供服务所需要的下行发射功率小于所述至少一个小小区基站的下行发 射功率。
该节能切换条件可以用如下公式（ 1 )表示：
N N
ρΐ?β > \， Ρ β _ι y [ | J X， * \ β ^ ， Ρ
unused _ macro / used— smallcell—i ( ' ' | i ι / j i ( 1 ) i=l J L i =l =1 一
其中， PR unused_macro是宏基站空闲资源块总数， PRBused sm; 、小区基站 i使用的资源块总数， n是接收到的发送节能切换请求的小小区基站个数， N 是 n个发送节能切换请求的小小区基站所覆盖的用户总数， 是小小区基站向 用户 i提供服务时的下行发射功率， /f是小小区基站所覆盖的用户 i切换到宏 基站后， 宏基站提供服务时需要的下行发射功率， 、 是两个设计参数， η 是关系与， 即当公式（ 1 ) η左边的部分和右边的部分同时成立时， 该至少一 个小小区基站满足节能切换条件。 宏基站将至少一个小小区基站的小小区基站占用资源块总数、 小小区基站 的下行发射功率、 小小区基站覆盖的用户总数、 宏基站为小小区基站覆盖的用 户提供服务所需要的下行发射功率带入上述公式（ 1 ) , 如果经过计算获取的结 果为 1 , 可以确定至少一个小小区基站满足节能切换条件； 如果经过计算获取 的结果为 0, 可以确定至少一个小小区基站不满足节能切换条件。
203: 当所述至少一个小小区基站不满足所述节能切换条件时， 宏基站减 少所述至少一个小小区基站的数量， 执行步骤 202;
具体地， 当该至少一个小小区基站不满足该节能切换条件时， 减少该至少 一个小小区基站的数量， 直到减少数量后的小小区基站满足该节能切换条件， 向该减少数量后的小小区基站发送节能切换命令，使得该减少数量后的小小区 基站覆盖的用户切换至该宏基站， 当用户切换结束时， 该减少数量后的小小区 基站进入节能状态。
优选地， 当至少一个小小区基站不满足所述节能切换条件时， 宏基站从至 少一个小小区基站中减少一个小小区基站，宏基站通过步骤 202判断减少数量 后的小小区基站是否满足节能切换条件， 对于不满足节能切换条件的情况， 继 续减少小小区基站的数量， 直到减少数量后的小小区基站满足节能切换条件为 止。
204: 当所述至少一个小小区基站满足所述节能切换条件时， 宏基站向所 述至少一个小小区基站发送节能切换命令，使得所述至少一个小小区基站覆盖 的用户切换至所述宏基站， 当用户切换结束时， 所述至少一个小小区基站进入 节能状态；
当宏基站确定至少一个小小区基站满足节能切换条件时，宏基站向至少一 个小小区基站发送节能切换命令，使得所述至少一个小小区基站在接收到该节 能切换命令后， 将该至少一个小小区基站覆盖的用户切换至宏基站。 当用户切 换结束时， 至少一个小小区基站进入节能状态， 而宏基站为进入节能状态的至 少一个小小区基站覆盖的用户提供服务。
205: 宏基站接收任一个处于节能状态的小小区基站发送的第二参数信息， 所述第二参数信息至少包括： 所述处于节能状态的小小区基站的位置信息、 空 闲资源块总数、处于节能状态的小小区基站为所述处于节能状态的小小区基站 覆盖的用户提供服务所需要的下行发射功率；
其中， 第二参数信息用于宏基站判断任一个处于节能状态的小小区基站是 否切换至工作状态。
该第二参数信息可以是由处于节能状态的小小区基站周期性地向宏基站 发送， 也可以是当宏基站提供服务的用户满足某些预设条件时， 触发宏基站向 处于节能状态的小小区基站发送第二参数获取命令，使得处于节能状态的小小 区基站在接收到该第二参数获取命令后， 向宏基站发送第二参数信息。 如该预 设条件可以为当宏基站提供服务的用户数量超过预设数量 100时，宏基站向处 于节能状态的小小区基站发送第二参数获取命令。 对此， 本发明实施例不作具 体限定。
206: 根据所述宏基站服务用户的位置信息和所述处于节能状态的小小区 基站的位置信息， 判断所述处于节能状态的小小区基站覆盖的用户数是否大于 预设值；
其中，预设值用于确定宏基站是否判断处于节能状态的小小区基站满足工 作状态条件。
宏基站根据处于节能状态的小小区基站的位置信息获取该小小区基站覆 盖的范围， 通过宏基站服务的用户的位置信息所属的小小区基站覆盖的范围， 可以确定处于节能状态的小小区基站当前覆盖的用户数。
将处于节能状态的小小区基站覆盖的用户数和预设值进行比较， 可以进一 步确定处于节能状态的小小区基站的状态变化情况。
需要说明的是， 当处于节能状态的小小区基站覆盖的用户数小于等于预设 值时，宏基站继续判断对该处于节能状态的小小区基站覆盖的用户数是否小于 预设值。
207: 当所述处于节能状态的小小区基站覆盖的用户数大于预设值， 宏基 站根据所述处于节能状态的小小区基站的位置信息、 空闲资源块总数、 处于节 能状态的小小区基站为所述小小区基站覆盖的用户提供服务所需要的下行发 射功率和工作状态切换条件， 判断所述处于节能状态的小小区基站是否满足工 作状态切换条件；
优选地， 该工作状态切换条件为该宏基站为处于节能状态的小小区基站覆 盖的用户提供服务时所使用的资源块总数小于该处于节能状态的小小区基站 的空闲资源块总数， 且该宏基站为处于节能状态的小小区基站覆盖的用户提供 服务时所使用的下行发射功率大于该处于节能状态的小小区基站为覆盖的用 户提供服务时所使用的下行发射功率。 该工作状态切换条件可以用如下公式（2 )表示：
( 2 )
Figure imgf000015_0001
其中， PRi a ii是宏基站提供服务的用户中小小区基站 i覆盖的用户 所使用的资源块总量， PR ^— 是小小区基站 i空闲资源块总数， M是 宏基站提供服务的用户中小小区基站 i覆盖的用户总数， 是宏基站提供服务 的用户中小小区基站 i覆盖的用户 j所需要的下行发射功率， Pj是小小区基站 i 为用户 j提供服务所需要的下行发射功率， η、 是两个设计参数， η是关系与， 即当 η左边的公式和右边的公式同时成立时， 满足工作条件。
宏基站将覆盖的用户数大于预设值的处于节能状态的小小区基站的空闲 资源块总数、 小小区基站为小小区基站覆盖的用户提供服务所需要的下行发射 功率等参数带入上述公式（2 ), 如果经过计算获取的结果为 1 , 可以确定该小 小区基站满足工作状态切换条件； 如果经过计算获取的结果为 0, 可以确定该 小小区基站不满足工作状态切换条件。
需要说明的是， 当处于节能状态的小小区基站不满足工作状态切换条件 时， 宏基站不向处于节能状态的小小区基站发送工作状态切换条件， 该处于节 能状态的小小区基站仍然保持当前的状态。
步骤 206-207是根据该处于节能状态的小小区基站的位置信息、 空闲资源 块总数、处于节能状态的小小区基站为该小小区基站覆盖的用户提供服务所需 要的下行发射功率和工作状态切换条件， 判断该处于节能状态的小小区基站是 否满足工作状态切换条件的过程。
208: 如果所述处于节能状态的小小区基站满足工作状态切换条件， 向所 述处于节能状态的小小区基站发送工作状态切换命令，使得所述处于节能状态 的小小区基站从节能状态切换为工作状态。
其中， 工作状态切换命令是指宏基站用于指示处于节能状态的小小区基站 从节能状态切换到工作状态的命令。
如果处于节能状态的小小区基站满足工作状态切换条件，宏基站向该处于 节能状态的小小区基站发送工作状态切换命令。
处于节能状态的小小区基站接收到该工作状态切换命令后，从节能状态切 换为工作状态， 并将宏基站提供服务的用户属于该小小区基站覆盖的用户切换 至该小小区基站， 为属于该小小区基站覆盖的用户提供服务。 可选地， 该小小 区基站向周围的小小区基站发送状态消息，使得周围的小小区基站获知该小小 区基站的工作状态， 进而可以向该小小区基站发送功能性的请求消息。
本发明实施例提供的基站节能方法，通过宏基站接收至少一个小小区基站 发送的节能切换请求， 每个节能切换请求携带第一参数信息， 所述第一参数信 息至少包括： 所述小小区基站占用资源块总数、 所述小小区基站的下行发射功 率、 所述小小区基站覆盖的用户总数、 宏基站为所述小小区基站覆盖的用户提 供服务所需要的下行发射功率； 根据所述每个小小区基站的所述小小区基站占 用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户 总数、宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和 节能切换条件， 判断所述至少一个小小区基站是否满足节能切换条件； 当所述 至少一个小小区基站满足所述节能切换条件时， 向所述至少一个小小区基站发 送节能切换命令， 使得所述至少一个小小区基站覆盖的用户切换至所述宏基 站， 当用户切换结束时， 所述至少一个小小区基站进入节能状态。 采用本发明 提供的技术方案， 宏基站根据至少一个小小区的第一参数信息和节能切换条 件， 判断至少一个小小区基站是否能够切换到节能状态， 充分考虑了宏基站的 负载条件， 以保证将至少一个小小区基站覆盖的用户切换到宏基站后， 宏基站 可以为至少一个小小区覆盖的用户正常提供服务， 既不影响小小区基站用户的 正常业务， 也不影响宏基站用户的正常业务， 降低了宏基站和小小区基站总体 的能量消耗，提高了用户通信体验和宏基站和小小区基站的吞吐量。进一步地， 宏基站通过根据第二参数信息和工作状态切换条件， 确定处于节能状态的小小 区基站是否从节能状态切换到工作状态，提高了小小区状态切换的及时性和灵 活性。 图 3是本发明实施例中提供的一种基站节能装置结构示意图， 参见图 3 , 该装置包括：
第一接收模块 301 , 用于接收至少一个小小区基站发送的节能切换请求， 每个节能切换请求携带第一参数信息， 所述第一参数信息至少包括： 所述小小 区基站占用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆 盖的用户总数、宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发 射功率；
第一判断模块 302, 用于根据所述每个小小区基站的所述小小区基站占用 资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户总 数、宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和节 能切换条件， 判断所述至少一个小小区基站是否满足节能切换条件；
第一发送模块 303 , 用于当所述至少一个小小区基站满足所述节能切换条 件时， 向所述至少一个小小区基站发送节能切换命令， 使得所述至少一个小小 区基站覆盖的用户切换至所述宏基站， 当用户切换结束时， 所述至少一个小小 区基站进入节能状态。
所述装置还包括：
第二接收模块 304 , 用于接收任一个处于节能状态的小小区基站发送的第 二参数信息， 所述第二参数信息至少包括： 所述处于节能状态的小小区基站的 位置信息、 空闲资源块总数、 处于节能状态的小小区基站为所述处于节能状态 的小小区基站覆盖的用户提供服务所需要的下行发射功率；
第二判断模块 305 ,用于根据所述处于节能状态的小小区基站的位置信息、 空闲资源块总数、处于节能状态的小小区基站为所述小小区基站覆盖的用户提 供服务所需要的下行发射功率和工作状态切换条件， 判断所述处于节能状态的 小小区基站是否满足工作状态切换条件；
第二发送模块 306 , 用于如果所述处于节能状态的小小区基站满足工作状 态切换条件， 向所述处于节能状态的小小区基站发送工作状态切换命令， 使得 所述处于节能状态的小小区基站从节能状态切换为工作状态。
所述装置还包括：
数量控制模块 307 , 用于当所述至少一个小小区基站不满足所述节能切换 条件时， 减少所述至少一个小小区基站的数量， 直到减少数量后的小小区基站 满足所述节能切换条件， 向所述减少数量后的小小区基站发送节能切换命令， 使得所述减少数量后的小小区基站覆盖的用户切换至所述宏基站， 当用户切换 结束时， 所述减少数量后的小小区基站进入节能状态。
所述节能切换条件为宏基站的空闲资源块的总数大于所述至少一个小小 区基站的占用资源块总数， 且所述宏基站为所述至少一个小小区基站覆盖的用 户提供服务所需要的下行发射功率小于所述至少一个小小区基站的下行发射 功率。
所述装置还包括：
第三判断模块 308 , 用于根据所述宏基站服务用户的位置信息和所述处于 节能状态的小小区基站的位置信息， 判断所述处于节能状态的小小区基站覆盖 的用户数是否大于预设值；
相应地， 所述第二判断模块 305 , 用于当所述处于节能状态的小小区基站 覆盖的用户数大于预设值， 根据所述处于节能状态的小小区基站的位置信息、 空闲资源块总数、处于节能状态的小小区基站为所述小小区基站覆盖的用户提 供服务所需要的下行发射功率和工作状态切换条件， 判断所述处于节能状态的 小小区基站是否满足工作状态切换条件。
所述工作状态切换条件为所述宏基站为处于节能状态的小小区基站覆盖 的用户提供服务时所使用的资源块总数小于所述处于节能状态的小小区基站 的空闲资源块总数， 且所述宏基站为处于节能状态的小小区基站覆盖的用户提 供服务时所使用的下行发射功率大于所述处于节能状态的小小区基站为覆盖 的用户提供服务时所使用的下行发射功率。
所述宏基站和小小区基站之间通过 Xm接口进行信号的发送和接收。
本发明实施例提供的基站节能装置，通过宏基站接收至少一个小小区基站 发送的节能切换请求， 每个节能切换请求携带第一参数信息， 所述第一参数信 息至少包括： 所述小小区基站占用资源块总数、 所述小小区基站的下行发射功 率、 所述小小区基站覆盖的用户总数、 宏基站为所述小小区基站覆盖的用户提 供服务所需要的下行发射功率； 根据所述每个小小区基站的所述小小区基站占 用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户 总数、宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和 节能切换条件， 判断所述至少一个小小区基站是否满足节能切换条件； 当所述 至少一个小小区基站满足所述节能切换条件时， 向所述至少一个小小区基站发 送节能切换命令， 使得所述至少一个小小区基站覆盖的用户切换至所述宏基 站， 当用户切换结束时， 所述至少一个小小区基站进入节能状态。 采用本发明 提供的技术方案， 宏基站根据至少一个小小区的第一参数信息和节能切换条 件， 判断至少一个小小区基站是否能够切换到节能状态， 充分考虑了宏基站的 负载条件， 以保证将至少一个小小区基站覆盖的用户切换到宏基站后， 宏基站 可以为至少一个小小区覆盖的用户正常提供服务， 既不影响小小区基站用户的 正常业务， 也不影响宏基站用户的正常业务， 降低了宏基站和小小区基站总体 的能量消耗，提高了用户通信体验和宏基站和小小区基站的吞吐量。进一步地， 宏基站通过根据第二参数信息和工作状态切换条件， 确定处于节能状态的小小 区基站是否从节能状态切换到工作状态，提高了小小区状态切换的及时性和灵 活性。 图 4是本发明实施例中提供的一种基站结构示意图， 参见图 4, 该基站包 括： 接收器 401、 处理器 402和发射器 403 ,
所述接收器 401 , 用于接收至少一个小小区基站发送的节能切换请求， 每 个节能切换请求携带第一参数信息， 所述第一参数信息至少包括： 所述小小区 基站占用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖 的用户总数、宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射 功率；
所述处理器 402, 用于根据所述每个小小区基站的所述小小区基站占用资 源块总数、所述小小区基站的下行发射功率、所述小小区基站覆盖的用户总数、 宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和节能 切换条件， 判断所述至少一个小小区基站是否满足节能切换条件；
所述发射器 403 , 用于当所述至少一个小小区基站满足所述节能切换条件 时， 向所述至少一个小小区基站发送节能切换命令， 使得所述至少一个小小区 基站覆盖的用户切换至所述宏基站， 当用户切换结束时， 所述至少一个小小区 基站进入节能状态。
所述接收器 401 , 还用于接收任一个处于节能状态的小小区基站发送的第 二参数信息， 所述第二参数信息至少包括： 所述处于节能状态的小小区基站的 位置信息、 空闲资源块总数、 处于节能状态的小小区基站为所述处于节能状态 的小小区基站覆盖的用户提供服务所需要的下行发射功率；
所述处理器 402,还用于根据所述处于节能状态的小小区基站的位置信息、 空闲资源块总数、处于节能状态的小小区基站为所述小小区基站覆盖的用户提 供服务所需要的下行发射功率和工作状态切换条件， 判断所述处于节能状态的 小小区基站是否满足工作状态切换条件；
所述发射器 403 , 还用于如果所述处于节能状态的小小区基站满足工作状 态切换条件， 向所述处于节能状态的小小区基站发送工作状态切换命令， 使得 所述处于节能状态的小小区基站从节能状态切换为工作状态。
所述处理器 402, 还用于当所述至少一个小小区基站不满足所述节能切换 条件时， 减少所述至少一个小小区基站的数量， 直到减少数量后的小小区基站 满足所述节能切换条件， 向所述减少数量后的小小区基站发送节能切换命令， 使得所述减少数量后的小小区基站覆盖的用户切换至所述宏基站， 当用户切换 结束时， 所述减少数量后的小小区基站进入节能状态。
所述节能切换条件为宏基站的空闲资源块的总数大于所述至少一个小小 区基站的占用资源块总数， 且所述宏基站为所述至少一个小小区基站覆盖的用 户提供服务所需要的下行发射功率小于所述至少一个小小区基站的下行发射 功率。
所述处理器 402, 还用于根据所述宏基站服务用户的位置信息和所述处于 节能状态的小小区基站的位置信息， 判断所述处于节能状态的小小区基站覆盖 的用户数是否大于预设值；
相应地， 所述处理器 402, 还用于当所述处于节能状态的小小区基站覆盖 的用户数大于预设值， 根据所述处于节能状态的小小区基站的位置信息、 空闲 资源块总数、处于节能状态的小小区基站为所述小小区基站覆盖的用户提供服 务所需要的下行发射功率和工作状态切换条件， 判断所述处于节能状态的小小 区基站是否满足工作状态切换条件。
所述工作状态切换条件为所述宏基站为处于节能状态的小小区基站覆盖 的用户提供服务时所使用的资源块总数小于所述处于节能状态的小小区基站 的空闲资源块总数， 且所述宏基站为处于节能状态的小小区基站覆盖的用户提 供服务时所使用的下行发射功率大于所述处于节能状态的小小区基站为覆盖 的用户提供服务时所使用的下行发射功率。
所述宏基站和小小区基站之间通过 Xm接口进行信号的发送和接收。 本发明实施例提供的基站， 通过宏基站接收至少一个小小区基站发送的节 能切换请求， 每个节能切换请求携带第一参数信息， 所述第一参数信息至少包 括： 所述小小区基站占用资源块总数、 所述小小区基站的下行发射功率、 所述 小小区基站覆盖的用户总数、宏基站为所述小小区基站覆盖的用户提供服务所 需要的下行发射功率； 根据所述每个小小区基站的所述小小区基站占用资源块 总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏 基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和节能切 换条件， 判断所述至少一个小小区基站是否满足节能切换条件； 当所述至少一 个小小区基站满足所述节能切换条件时， 向所述至少一个小小区基站发送节能 切换命令， 使得所述至少一个小小区基站覆盖的用户切换至所述宏基站， 当用 户切换结束时， 所述至少一个小小区基站进入节能状态。 采用本发明提供的技 术方案， 宏基站根据至少一个小小区的第一参数信息和节能切换条件， 判断至 少一个小小区基站是否能够切换到节能状态， 充分考虑了宏基站的负载条件， 以保证将至少一个小小区基站覆盖的用户切换到宏基站后，宏基站可以为至少 一个小小区覆盖的用户正常提供服务， 既不影响小小区基站用户的正常业务， 也不影响宏基站用户的正常业务， 降低了宏基站和小小区基站总体的能量消 耗， 提高了用户通信体验和宏基站和小小区基站的吞吐量。 进一步地， 宏基站 通过根据第二参数信息和工作状态切换条件， 确定处于节能状态的小小区基站 是否从节能状态切换到工作状态， 提高了小小区状态切换的及时性和灵活性。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通 过硬件来完成， 也可以通过程序来指令相关的硬件完成， 所述的程序可以存储 于一种计算机可读存储介质中， 上述提到的存储介质可以是只读存储器， 磁盘 或光盘等。
以上所述仅为本发明的较佳实施例， 并不用以限制本发明， 凡在本发明的 精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的 保护范围之内。

Claims

权 利 要 求 书
1、 一种基站节能方法， 其特征在于， 所述方法包括：
宏基站接收至少一个小小区基站发送的节能切换请求， 每个节能切换请求 携带第一参数信息， 所述第一参数信息至少包括： 所述小小区基站占用资源块 总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏 基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率；
根据所述每个小小区基站的所述小小区基站占用资源块总数、 所述小小区 基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏基站为所述小小区 基站覆盖的用户提供服务所需要的下行发射功率和节能切换条件， 判断所述至 少一个小小区基站是否满足节能切换条件；
当所述至少一个小小区基站满足所述节能切换条件时， 向所述至少一个小 小区基站发送节能切换命令， 使得所述至少一个小小区基站覆盖的用户切换至 所述宏基站， 当用户切换结束时， 所述至少一个小小区基站进入节能状态。
2、 根据权利要求 1所述的方法， 其特征在于， 当所述至少一个小小区基站 满足所述节能切换条件时， 向所述至少一个小小区基站发送节能切换命令之后， 所述方法还包括：
接收任一个处于节能状态的小小区基站发送的第二参数信息， 所述第二参 数信息至少包括： 所述处于节能状态的小小区基站的位置信息、 空闲资源块总 数、 处于节能状态的小小区基站为所述处于节能状态的小小区基站覆盖的用户 提供服务所需要的下行发射功率；
根据所述处于节能状态的小小区基站的位置信息、 空闲资源块总数、 处于 节能状态的小小区基站为所述小小区基站覆盖的用户提供服务所需要的下行发 射功率和工作状态切换条件， 判断所述处于节能状态的小小区基站是否满足工 作状态切换条件；
如果所述处于节能状态的小小区基站满足工作状态切换条件， 向所述处于 节能状态的小小区基站发送工作状态切换命令， 使得所述处于节能状态的小小 区基站从节能状态切换为工作状态。
3、 根据权利要求 1所述的方法， 其特征在于， 根据所述小小区基站的所述 小小区基站占用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基 站覆盖的用户总数、 宏基站服务为所述小小区基站覆盖的用户提供服务所需要 的下行发射功率和节能切换条件， 判断所述小小区基站是否满足节能切换条件 之后， 所述方法还包括：
当所述至少一个小小区基站不满足所述节能切换条件时， 减少所述至少一 个小小区基站的数量， 直到减少数量后的小小区基站满足所述节能切换条件， 向所述减少数量后的小小区基站发送节能切换命令， 使得所述减少数量后的小 小区基站覆盖的用户切换至所述宏基站， 当用户切换结束时， 所述减少数量后 的小小区基站进入节能状态。
4、 根据权利要求 2所述的方法， 其特征在于， 所述节能切换条件为宏基站 的空闲资源块的总数大于所述至少一个小小区基站的占用资源块总数， 且所述 宏基站为所述至少一个小小区基站覆盖的用户提供服务所需要的下行发射功率 小于所述至少一个小小区基站的下行发射功率。
5、 根据权利要求 2所述的方法， 其特征在于， 接收任一个处于节能状态的 小小区基站发送的第二参数信息， 所述第二参数信息至少包括： 所述处于节能 状态的小小区基站的位置信息、 空闲资源块总数、 处于节能状态的小小区基站 为所述处于节能状态的小小区基站覆盖的用户提供服务所需要的下行发射功率 之后， 所述方法还包括：
根据所述宏基站服务用户的位置信息和所述处于节能状态的小小区基站的 位置信息， 判断所述处于节能状态的小小区基站覆盖的用户数是否大于预设值； 相应地， 根据所述处于节能状态的小小区基站的位置信息、 空闲资源块总 数、 处于节能状态的小小区基站为所述小小区基站覆盖的用户提供服务所需要 的下行发射功率和工作状态切换条件， 判断所述处于节能状态的小小区基站是 否满足工作状态切换条件， 包括：
当所述处于节能状态的小小区基站覆盖的用户数大于预设值， 根据所述处 于节能状态的小小区基站的位置信息、 空闲资源块总数、 处于节能状态的小小 区基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和工作状 态切换条件， 判断所述处于节能状态的小小区基站是否满足工作状态切换条件。
6、 根据权利要求 2所述的方法， 其特征在于， 所述工作状态切换条件为所 述宏基站为处于节能状态的小小区基站覆盖的用户提供服务时所使用的资源块 总数小于所述处于节能状态的小小区基站的空闲资源块总数， 且所述宏基站为 处于节能状态的小小区基站覆盖的用户提供服务时所使用的下行发射功率大于 所述处于节能状态的小小区基站为覆盖的用户提供服务时所使用的下行发射功 率。
7、 根据权利要求 1-6任一项所述的方法， 其特征在于， 所述宏基站和小小 区基站之间通过 Xm接口进行信号的发送和接收。
8、 一种基站节能装置， 其特征在于， 所述装置包括：
第一接收模块， 用于接收至少一个小小区基站发送的节能切换请求， 每个 节能切换请求携带第一参数信息， 所述第一参数信息至少包括： 所述小小区基 站占用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的 用户总数、 宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功 率；
第一判断模块， 用于根据所述每个小小区基站的所述小小区基站占用资源 块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和节能切 换条件， 判断所述至少一个小小区基站是否满足节能切换条件；
第一发送模块， 用于当所述至少一个小小区基站满足所述节能切换条件时， 向所述至少一个小小区基站发送节能切换命令， 使得所述至少一个小小区基站 覆盖的用户切换至所述宏基站， 当用户切换结束时， 所述至少一个小小区基站 进入节能状态。
9、 根据权利要求 8所述的装置， 其特征在于， 所述装置还包括：
第二接收模块， 用于接收任一个处于节能状态的小小区基站发送的第二参 数信息， 所述第二参数信息至少包括： 所述处于节能状态的小小区基站的位置 信息、 空闲资源块总数、 处于节能状态的小小区基站为所述处于节能状态的小 小区基站覆盖的用户提供服务所需要的下行发射功率；
第二判断模块， 用于根据所述处于节能状态的小小区基站的位置信息、 空 闲资源块总数、 处于节能状态的小小区基站为所述小小区基站覆盖的用户提供 服务所需要的下行发射功率和工作状态切换条件， 判断所述处于节能状态的小 小区基站是否满足工作状态切换条件；
第二发送模块， 用于如果所述处于节能状态的小小区基站满足工作状态切 换条件， 向所述处于节能状态的小小区基站发送工作状态切换命令， 使得所述 处于节能状态的小小区基站从节能状态切换为工作状态。
10、 根据权利要求 8所述的装置， 其特征在于， 所述装置还包括： 数量控制模块， 用于当所述至少一个小小区基站不满足所述节能切换条件 时， 减少所述至少一个小小区基站的数量， 直到减少数量后的小小区基站满足 所述节能切换条件， 向所述减少数量后的小小区基站发送节能切换命令， 使得 所述减少数量后的小小区基站覆盖的用户切换至所述宏基站， 当用户切换结束 时， 所述减少数量后的小小区基站进入节能状态。
11、 根据权利要求 9所述的装置， 其特征在于， 所述节能切换条件为宏基 站的空闲资源块的总数大于所述至少一个小小区基站的占用资源块总数， 且所 述宏基站为所述至少一个小小区基站覆盖的用户提供服务所需要的下行发射功 率小于所述至少一个小小区基站的下行发射功率。
12、 根据权利要求 9所述的装置， 其特征在于， 所述装置还包括： 第三判断模块， 用于根据所述宏基站服务用户的位置信息和所述处于节能 状态的小小区基站的位置信息， 判断所述处于节能状态的小小区基站覆盖的用 户数是否大于预设值；
相应地， 所述第二判断模块， 用于当所述处于节能状态的小小区基站覆盖 的用户数大于预设值， 根据所述处于节能状态的小小区基站的位置信息、 空闲 资源块总数、 处于节能状态的小小区基站为所述小小区基站覆盖的用户提供服 务所需要的下行发射功率和工作状态切换条件， 判断所述处于节能状态的小小 区基站是否满足工作状态切换条件。
13、 根据权利要求 9所述的装置， 其特征在于， 所述工作状态切换条件为 所述宏基站为处于节能状态的小小区基站覆盖的用户提供服务时所使用的资源 块总数小于所述处于节能状态的小小区基站的空闲资源块总数， 且所述宏基站 为处于节能状态的小小区基站覆盖的用户提供服务时所使用的下行发射功率大 于所述处于节能状态的小小区基站为覆盖的用户提供服务时所使用的下行发射 功率。
14、 根据权利要求 8-13任一项所述的装置， 其特征在于， 所述宏基站和小 小区基站之间通过 Xm接口进行信号的发送和接收。
15、 一种基站， 其特征在于， 所述基站包括： 接收器、 发射器和处理器， 所述接收器， 用于接收至少一个小小区基站发送的节能切换请求， 每个节 能切换请求携带第一参数信息， 所述第一参数信息至少包括： 所述小小区基站 占用资源块总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用 户总数、 宏基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率； 所述处理器， 用于根据所述每个小小区基站的所述小小区基站占用资源块 总数、 所述小小区基站的下行发射功率、 所述小小区基站覆盖的用户总数、 宏 基站为所述小小区基站覆盖的用户提供服务所需要的下行发射功率和节能切换 条件， 判断所述至少一个小小区基站是否满足节能切换条件；
所述发射器， 用于当所述至少一个小小区基站满足所述节能切换条件时， 向所述至少一个小小区基站发送节能切换命令， 使得所述至少一个小小区基站 覆盖的用户切换至所述宏基站， 当用户切换结束时， 所述至少一个小小区基站 进入节能状态。
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