WO2016172826A1 - 小基站发射功率管理方法、设备和系统 - Google Patents

小基站发射功率管理方法、设备和系统 Download PDF

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Publication number
WO2016172826A1
WO2016172826A1 PCT/CN2015/077526 CN2015077526W WO2016172826A1 WO 2016172826 A1 WO2016172826 A1 WO 2016172826A1 CN 2015077526 W CN2015077526 W CN 2015077526W WO 2016172826 A1 WO2016172826 A1 WO 2016172826A1
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WIPO (PCT)
Prior art keywords
base station
small base
transmit power
channel quality
current
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PCT/CN2015/077526
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English (en)
French (fr)
Inventor
郭博伦
陈继明
伍勇
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580071545.4A priority Critical patent/CN107113734A/zh
Priority to PCT/CN2015/077526 priority patent/WO2016172826A1/zh
Publication of WO2016172826A1 publication Critical patent/WO2016172826A1/zh

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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
    • H04W52/04—TPC

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a small base station transmit power management method, device, and system.
  • HetNet Heterogeneous Network
  • the macro base station and the small base station are deployed at the same frequency, but the transmit power of the macro base station is greater than the transmit power of the small base station, so there will be serious between the macro base station and the small base station.
  • interference when the small base stations are densely deployed, as in the coverage of a macro base station, at least 200 small base stations may be placed. Since the small base stations have line-of-sight or overlapping coverage, the interference between the small base stations becomes more prominent and dense. The small base station also has stronger interference to the macro base station, which reduces the network throughput.
  • the embodiments of the present invention provide a small base station transmit power management method, device, and system, which are used to reduce interference of a small base station to a neighboring small base station and a macro base station, and improve network throughput.
  • an embodiment of the present invention provides a small base station, as a first small base station, including: a transceiver unit, configured to receive, by a user equipment (User Equipment, UE for short) managed by the first small base station, a measurement report, each of the measurement reports includes a channel quality measured by the UE that sends the measurement report, and a processing unit, configured to determine a current status of the first small base station according to channel quality in the N measurement reports Average channel quality; and acquiring, according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality, a transmit power to be used by the first small base station.
  • UE User Equipment
  • the processing unit acquires the foregoing according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality.
  • a small base station is specifically used to:
  • the current average channel quality being greater than a channel quality threshold, and the current load is large Determining, by the load threshold, a transmit power to be used by the first small base station as the first transmit power;
  • the first transmit power is greater than the second transmit power.
  • the processing unit acquires the foregoing according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality.
  • the method is specifically configured to: send the current average channel quality of the first small base station and the current load to a macro base station; and the first small base station is a coverage of the macro base station Any small base station within;
  • the power allocation indication information is used to indicate the to-be-used transmission of the first small base station power
  • each of the measurement reports further includes the interference that is measured by the UE that sends the measurement report is the strongest.
  • the processing unit is further configured to: before receiving the power allocation indication information sent by the macro base station, acquire an adjacent small base station identifier set according to an identifier of a neighboring small base station in the N measurement reports, where the neighboring small
  • the base station identifier set includes identifiers of H neighboring small base stations, 1 ⁇ H ⁇ N, and the H is an integer, the identifier of the H neighboring small base stations is an identifier of a neighboring small base station in the N measurement reports; and the neighboring small base station identifier set is sent to the macro base station.
  • the processing unit is configured to receive, according to the current average channel of the first small base station, the macro base station.
  • the quality and the power allocation indication information sent by the current load are specifically used to: receive, by the macro base station, the current average channel quality, the current load, and the neighboring small base station identifier according to the first small base station. Set, the power allocation indication information sent.
  • the processing unit is further configured to: before receiving the power allocation indication information sent by the macro base station, The macro base station transmits the current transmit power of the first small base station.
  • the processing unit is configured to receive, according to the current average channel of the first small base station, the macro base station The quality, the current load, and the neighboring small cell identifier set, when the power allocation indication information is sent, is specifically used to: receive, by the macro base station, the current average channel quality according to the first small base station, The power allocation indication information that is sent by the current transmit power, the current load, and the neighboring small cell identity set.
  • the power allocation indication information is used to indicate the first small
  • the transmit power to be used by the base station is the first transmit power or the second transmit power, and the first transmit power is greater than the second transmit power.
  • the second transmit power is zero transmit power.
  • the processing unit is further used Scheduling a first UE to perform traffic transmission when the first small base station uses the first transmit power; the first UE is any UE that performs high load or high data rate service managed by the first small base station ;and / or,
  • the processing unit is further configured to: schedule, by the second UE, to perform service transmission when the first small base station uses the second transmit power; and the second UE is configured to perform low load or low for the first small base station Any UE of the data rate service.
  • the transceiver unit is further When the first small base station uses the second transmit power, send scheduling indication information to the neighboring small base station, where the scheduling indication information is used to instruct the neighboring small base station to schedule the neighboring small base station management
  • the edge UE performs service transmission on the first time-frequency resource; the first time-frequency resource is a time-frequency resource for performing service transmission by the central UE managed by the first small base station.
  • the transmit power of the reference signal of the first small base station is the current transmit power of the first small base station.
  • the processing unit is further configured to: When the rate of change of the load of the first small base station in the preset time is greater than the first threshold, the time period during which the N UEs report the measurement report is decreased; when the load of the first small base station is within a preset time The rate of change is less than the second threshold, and the time period during which the N UEs report the measurement report is increased;
  • the first threshold is greater than or equal to the second threshold.
  • the processing unit is The channel quality in the N measurement reports, when determining the current average channel quality of the first small base station, specifically, determining that a weighted average of channel qualities in the N measurement reports is the first small base station The current instantaneous channel quality; and obtaining the current average channel quality of the first small base station according to the average channel quality obtained by the first small base station and the current instantaneous channel quality of the first small base station.
  • the embodiment of the present invention provides a macro base station, including: a receiving unit, configured to receive a current average channel quality and a current load of the first small base station sent by the first small base station; a small base station in the coverage of the macro base station; a processing unit, configured to determine, according to the current average channel quality of the first small base station and the current load, a transmit power to be used by the first small base station a sending unit, configured to send power allocation indication information to the first small base station, where the power allocation indication information is used to indicate that the first small base station is to be used Transmit power.
  • the processing unit is specifically configured to: according to the current average channel quality of the first small base station is greater than a channel quality threshold, and the first small base station Determining that the current load is greater than the load threshold, determining that the transmit power to be used by the first small base station is the first transmit power; or
  • the first transmit power is greater than the second transmit power.
  • the receiving unit is further configured to determine, according to the current average channel quality of the first small base station and the current load, by the processing unit, Receiving, by the first small base station, a neighboring small base station identifier set of the first small base station, where the small base station is to use the transmit power of the first small base station, where the neighboring small base station identifier set includes identifiers of the H adjacent small base stations , the H is an integer greater than or equal to 1;
  • the processing unit is specifically configured to: when the current average channel quality of the first small base station is not greater than a channel quality threshold, and the current load of the first small base station is not less than a load threshold, according to the phase
  • the neighboring small base station identifier set acquires a current load of the H neighboring small base stations; and determines, according to a current load of the H neighboring small base stations, a transmit power to be used by the first small base station.
  • the processing unit determines, according to a current load of the H neighboring small base stations, The transmit power to be used by the small base station is specifically used to: when the current load of the H neighboring small base stations is less than the load threshold, determine that the transmit power to be used by the first small base station is the first transmit power.
  • the receiving unit is further configured to perform, according to the processing, Receiving the current load before determining the transmit power to be used by the first small base station The current transmit power of the first small base station transmitted by the first small base station;
  • the processing unit determines the transmit power to be used by the first small base station according to the current load of the H neighboring small base stations, the processing unit is specifically configured to:
  • the first transmit power is greater than the second transmit power.
  • the processing unit is configured according to a current average channel quality and a current transmit power of the first small base station, And determining, by the current average channel quality and the current transmit power of the L neighboring small base stations, when determining the transmit power to be used by the first small base station and the L neighboring small base stations, specifically:
  • the first transmit power for the second small base station in the first small base station set using the second transmit power for the small base station other than the second small base station in the first small base station set, and obtaining L+1 Different power combinations, each of the power combinations including transmit power used by the first small base station and the L adjacent small base stations; the first small base station set including the first small base station and the L a neighboring small base station, wherein the second small base station is any one of the first small base station sets;
  • the transmit power used is used as the transmit power to be used by the first small base station and the L adjacent small base stations, respectively.
  • the processing unit is configured to perform the maximum of the first small base station and the L phases a transmit power used by the first small base station and the L adjacent small base stations as the first small base station and the L phases in a power combination corresponding to a weighted average of average channel qualities of the neighboring small base stations Before the transmit power of the neighboring small base station to be used, it is also used to:
  • a power combination corresponding to a weighted average of average channel qualities of the largest of the first small base station and the L adjacent small base stations that are currently determined, and a maximum of the last determined maximum size of the macro base station Determining the currently determined maximum of the first small base station and the L phases when a power combination corresponding to a weighted average of average channel qualities of the small base station and the L adjacent small base stations is the same
  • the weighted average of the average channel quality of the neighboring small base stations is not less than the weighted average of the average channel qualities of the first determined first small base station and the L adjacent small base stations stored last time by the macro base station .
  • the processing unit is further configured to: store the last determined first small base station And a weighted average of the average channel qualities of the L neighboring small base stations, updated to store the average channel quality of the currently determined first small base station and the L adjacent small base stations Weighted average.
  • the processing unit is further configured to:
  • the currently determined weighted average of the average channel qualities of the largest first small base station and the L adjacent small base stations is smaller than the last determined by the macro base station a weighted average of the average channel quality of the first small base station and the L adjacent small base stations; determining a transmit power to be used by the third small base station as a second transmit power, where the third small base station is a small base station in the first small base station set currently using the first transmit power;
  • the second small base station set includes all of the first small base station and all of the L adjacent small base stations except the third small base station; each of the power combinations includes Transmitting power used by each small base station in the second small base station set; the fourth small base station is any small base station in the second small base station set;
  • Transmitting power used by each small base station of the second small base station set as the power combination corresponding to the weighted average of the average channel qualities of the small base stations in the largest of the second small base station sets The transmit power to be used by each small base station in the second small base station set.
  • the second transmit power Zero transmit power.
  • the processing unit is further configured to Acquiring the current average channel quality of the small base station and the current load, and determining the current average channel quality of the M small base stations in the coverage of the macro base station before determining the transmit power to be used by the first small base station; M small base stations including the first small base station and the H adjacent small base stations, where M is an integer greater than or equal to H+1; and determining a weighted average of current average channel qualities of the M small base stations The value is the channel quality threshold.
  • an embodiment of the present invention provides a method for managing a small base station transmit power, where the method includes:
  • each of the measurement reports includes a channel quality measured by the UE that sends the measurement report;
  • the first small base station acquires, according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality, a transmit power to be used by the first small base station.
  • the first small base station acquires the information according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality.
  • the transmit power to be used by the first small base station includes:
  • the transmit power to be used is the first transmit power
  • the first small base station Determining, by the first small base station, that the current average channel quality is not greater than a channel quality threshold, and the current transmit power is not greater than a second transmit power, and the current load is not greater than a load threshold, determining that the first small base station is The transmit power used is the second transmit power;
  • the first transmit power is greater than the second transmit power.
  • the first small base station acquires the information according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality.
  • the transmit power to be used by the first small base station includes:
  • the first small base station Transmitting, by the first small base station, the current average channel of the first small base station to a macro base station Quality and the current load;
  • the first small base station is any small base station within the coverage of the macro base station;
  • the power allocation indication information that is sent by the macro base station according to the current average channel quality of the first small base station and the current load, where the power allocation indication information is used to indicate the first The transmit power to be used by the small base station;
  • the first small base station determines, according to the power allocation indication information, a transmit power to be used by the first small base station.
  • each of the measurement reports further includes that the UE that sends the measurement report has the strongest interference measurement The identity of the adjacent small base station;
  • the method further includes:
  • the first small base station acquires a neighboring small base station identifier set according to an identifier of a neighboring small base station in the N measurement reports, where the neighboring small base station identifier set includes identifiers of H neighboring small base stations, 1 ⁇ H ⁇ N, and the H is an integer, and the identifiers of the H neighboring small base stations are identifiers of neighboring small base stations in the N measurement reports;
  • the first small base station sends the neighboring small base station identifier set to the macro base station.
  • the first small base station receives the current average of the macro base station according to the first small base station Channel quality and power allocation indication information sent by the current load, including:
  • the first small base station receives the power allocation indication information that is sent by the macro base station according to the current average channel quality, the current load, and the neighboring small base station identifier set of the first small base station.
  • the method before the first small base station receives the power allocation indication information that is sent by the macro base station, the method further includes:
  • the first small base station receives the current average of the macro base station according to the first small base station Channel quality, the current load, and the set of neighboring small base station identifiers, the location of the transmission
  • the power allocation indication information includes:
  • the macro base station Receiving, by the first small base station, the macro base station according to the current average channel quality, the current transmit power, the current load, and the neighboring small base station identifier set of the first small base station Power allocation indication information.
  • the power allocation indication information is used to indicate the first small
  • the transmit power to be used by the base station is the first transmit power or the second transmit power, and the first transmit power is greater than the second transmit power.
  • the second transmit power is zero transmit power.
  • the small base station schedules, by the first UE, the service transmission when the first small base station uses the first transmit power; the first UE is any one of the high load or high data rate service managed by the first small base station UE; and/or,
  • the first small base station schedules a second UE to perform traffic transmission when the first small base station uses the second transmit power; and the second UE performs low load or low data rate managed by the first small base station Any UE of the service.
  • the method further includes:
  • the first small base station When the first small base station uses the second transmit power, the first small base station sends scheduling indication information to the neighboring small base station, where the scheduling indication information is used to instruct the neighboring small base station to schedule the phase
  • the edge UE managed by the neighboring small base station performs service transmission on the first time-frequency resource; the first time-frequency resource is a time-frequency resource for performing service transmission by the central UE managed by the first small base station.
  • the transmit power of the reference signal of the first small base station is the current transmit power of the first small base station.
  • the method further includes:
  • the first small base station When the rate of change of the load of the first small base station in the preset time is greater than the first threshold, the first small base station reduces the time period in which the N UEs report the measurement report;
  • the first small base station increases the time period in which the N UEs report the measurement report;
  • the first threshold is greater than or equal to the second threshold.
  • the first small base station according to the Determining the channel quality in the N measurement reports, determining the current average channel quality of the first small base station, including:
  • the first small base station obtains the current average channel quality of the first small base station according to an average channel quality obtained by the first small base station and a current instantaneous channel quality of the first small base station.
  • the embodiment of the present invention further provides a small base station transmit power management method, including:
  • the macro base station receives the current average channel quality and the current load of the first small base station sent by the first small base station; the first small base station is any small base station within the coverage of the macro base station;
  • the macro base station sends power allocation indication information to the first small base station, where the power allocation indication information is used to indicate a transmit power to be used by the first small base station.
  • the macro base station determines, according to the current channel quality of the first small base station and the current load, a transmit power to be used by the first small base station, include:
  • the macro base station determines, according to the current average channel quality of the first small base station, that the current average channel quality is greater than a channel quality threshold, and that the current load of the first small base station is greater than a load threshold, determining the to-be-used transmission of the first small base station.
  • Power is the first transmit power; or,
  • the transmit power to be used by the first small base station is the second transmit power
  • the transmission power is the second transmission power
  • the first transmit power is greater than the second transmit power.
  • the macro base station determines, according to the current average channel quality of the first small base station and the current load, a transmit power to be used by the first small base station. Previously, it also included:
  • a neighboring small base station identifier set of the first small base station that is sent by the first small base station where the neighboring small base station identifier set includes an identifier of H neighboring small base stations, where the H is greater than Or an integer equal to 1;
  • Determining, by the macro base station, the transmit power to be used by the first small base station according to the current average channel quality of the first small base station and the current load including:
  • the macro base station is configured according to the neighboring small base station identifier Collecting, acquiring the current load of the H neighboring small base stations;
  • the macro base station determines, according to a current load of the H neighboring small base stations, a transmit power to be used by the first small base station.
  • the macro base station determines, according to a current load of the H neighboring small base stations, the first The transmit power to be used by the small base station includes:
  • the macro base station determines that the transmit power to be used by the first small base station is the first transmit power.
  • the macro base station determines, according to a current load of the H neighboring small base stations, the first Before the transmitting power to be used by the small base station, the method further includes: receiving, by the macro base station, a current transmit power of the first small base station that is sent by the first small base station;
  • Determining, by the macro base station, the transmit power to be used by the first small base station according to the current load of the H neighboring small base stations including:
  • the macro base station determines, according to the current load of the H neighboring small base stations and the load threshold, L neighbors in which the current load of the H neighboring small base stations is not less than the load threshold.
  • Small base station 1 ⁇ L ⁇ H, and the L is an integer;
  • the weighted average of the average channel quality is the largest;
  • the transmit power to be used by the one of the first small base station and the L adjacent small base stations is the first transmit power, the first small base station and the The transmit power to be used by the small base station other than the small base station whose transmit power is the first transmit power is the second transmit power in the L neighboring small base stations;
  • the first transmit power is greater than the second transmit power.
  • the macro base station is configured according to a current average channel quality and a current transmit power of the first small base station, and Determining the transmit power to be used by the first small base station and the L neighboring small base stations, including the current average channel quality and the current transmit power of the L neighboring small base stations, including:
  • the macro base station uses the first transmit power for the second small base station in the first small base station set, and uses the second transmit power for the small base station other than the second small base station in the first small base station set to obtain L+1 different power combinations, each of the power combinations including transmit power used by the first small base station and the L adjacent small base stations; the first small base station set including the first small base station And the L neighboring small base stations, where the second small base station is any one of the first small base station sets;
  • the macro base station corresponds to the current average channel quality of the first small base station according to the current transmit power of the first small base station, and the current transmit power of the L adjacent small base stations corresponds to the L adjacent small base stations.
  • the current average channel quality determining an average channel quality of the first small base station and the L adjacent small base stations corresponding to each power combination in the L+1 power combinations;
  • the macro base station combines the power corresponding to the weighted average of the average channel quality of the first first small base station and the L adjacent small base stations, the first small base station and the L
  • the transmit power used by the neighboring small base stations is used as the transmit power to be used by the first small base station and the L adjacent small base stations, respectively.
  • the macro base station, the first, the first small base station, and the L neighbors In the power combination corresponding to the weighted average of the average channel quality of the small base station, the transmit power used by the first small base station and the L adjacent small base stations is used as the first small base station and the L adjacent Before the transmit power of the small base station to be used, the method further includes:
  • the macro base station determines the currently determined maximum of the first
  • the weighted average of the average channel quality of the small base station and the L adjacent small base stations is not less than the last determined maximum of the first small base station and the L adjacent small base stations stored by the macro base station A weighted average of the average channel quality.
  • the method further includes:
  • the method further includes:
  • the macro base station determines that the weighted average of the average channel quality of the currently determined first small base station and the L adjacent small base stations is smaller than, the last determination of the macro base station is stored. a maximum weighted average of the average channel quality of the first small base station and the L adjacent small base stations; the macro base station determines that the third small base station is to use a transmit power a second small base station, wherein the third small base station is a small base station that currently uses the first transmit power in the first small base station set;
  • the macro base station uses the first transmit power for the fourth small base station in the second small base station set, and uses the second transmit power for the small base station other than the fourth small base station in the second small base station set, Obtaining L different power combinations;
  • the second small base station set includes all small base stations except the third small base station among the first small base station and the L adjacent small base stations;
  • the power combination includes transmit power used by each small base station of the second small base station set;
  • the fourth small base station is any small base station in the second small base station set;
  • the macro base station determines an average channel quality of each small base station in the second small base station set corresponding to each power combination in the L power combinations;
  • the macro base station determines, in a weighted average of average channel qualities of the respective small base stations in the second small base station set, a weighted average of average channel qualities of each of the largest small base station sets in the second small base station set;
  • the macro base station transmits, in the power combination corresponding to the weighted average of the average channel qualities of the small base stations in the largest of the second small base station sets, the transmission used by each small base station in the second small base station set
  • the power is used as the transmit power to be used by each small base station in the second small base station set.
  • the second transmit power Zero transmit power.
  • the macro base station is configured according to the first small base station Before determining the current average channel quality and the current load, determining the transmit power to be used by the first small base station, the method further includes:
  • the M small base stations include the first small base station and the H adjacent small base stations, where the M is An integer greater than or equal to H+1;
  • the macro base station determines that a weighted average of current average channel qualities of the M small base stations is the channel quality threshold.
  • an embodiment of the present invention provides a small base station transmit power management system, including: At least one small base station provided by each possible implementation of the first aspect of the invention, and a macro base station provided by each possible implementation of the second aspect of the invention.
  • the small base station transmit power management method, device, and system provided by the embodiment of the present invention receive the measurement report reported by the N UEs managed by the first small base station by using the first small base station, where each of the measurement reports includes sending the measurement Reporting the measured channel quality of the UE; and determining a current average channel quality of the first small base station according to channel quality in the N measurement reports; and then according to the current load and current transmit power of the first small base station Acquiring at least one of the current average channel quality, the transmit power to be used by the first small base station; the transmit power to be used by the first small base station is based on the current load and the current transmit power of the first small base station At least one, and the current average channel quality acquired, thereby reducing interference of the first small base station to the neighboring small base station and the macro base station, and improving network throughput.
  • Embodiment 1 is a schematic structural diagram of Embodiment 1 of a small base station according to the present invention.
  • Embodiment 1 of a macro base station is a schematic structural diagram of Embodiment 1 of a macro base station according to the present invention
  • Embodiment 2 of a small base station is a schematic structural diagram of Embodiment 2 of a small base station according to the present invention.
  • Embodiment 4 is a schematic structural diagram of Embodiment 2 of a macro base station according to the present invention.
  • Embodiment 1 is a flowchart of Embodiment 1 of a method for managing transmit power of a small base station according to the present invention
  • Embodiment 6 is a flowchart of Embodiment 2 of a method for managing transmit power of a small base station according to the present invention
  • Embodiment 7 is a flowchart of Embodiment 3 of a method for managing transmit power of a small base station according to the present invention.
  • Embodiment 8 is a flowchart of Embodiment 4 of a method for managing transmit power of a small base station according to the present invention
  • Embodiment 9 is a flowchart of Embodiment 5 of a method for managing transmit power of a small base station according to the present invention.
  • Embodiment 6 is a flowchart of Embodiment 6 of a method for managing transmit power of a small base station according to the present invention
  • Embodiment 7 is a flowchart of Embodiment 7 of a method for managing transmit power of a small base station according to the present invention
  • FIG. 12 is a schematic structural diagram of Embodiment 1 of a small base station transmit power management system according to the present invention.
  • the small base station as the first small base station in this embodiment may include: a transceiver unit 11 and a processing unit 12; Receiving a measurement report reported by the N user equipments UEs managed by the first small base station, each of the measurement reports includes a channel quality measured by the UE that sends the measurement report, and a processing unit 12, configured to use, according to the N Channel quality in the measurement report, determining a current average channel quality of the first small base station; and acquiring according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality The transmit power to be used by the first small base station.
  • the processing unit 12 acquires the first small base station to be used according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality. When transmitting power, it is specifically used to:
  • the current average channel quality is not greater than a channel quality threshold, and the current transmission The power is not greater than the second transmit power, and the current load is not greater than the load threshold, and determining that the transmit power to be used by the first small base station is the second transmit power;
  • the first transmit power is greater than the second transmit power.
  • the processing unit 12 acquires the first small base station to be in accordance with at least one of a current load and a current transmit power of the first small base station, and the current average channel quality.
  • the transmit power it is specifically used to:
  • the first small base station is any small base station within the coverage of the macro base station;
  • the power allocation indication information is used to indicate the to-be-used transmission of the first small base station power
  • each of the measurement reports further includes an identifier of a neighboring small base station that is the most interfered by the UE that sends the measurement report;
  • the processing unit 12 is further configured to: before receiving the power allocation indication information sent by the macro base station, acquire an adjacent small base station identifier set according to an identifier of a neighboring small base station in the N measurement reports, where the neighboring small base station
  • the identifier set includes the identifiers of the H neighboring small base stations, 1 ⁇ H ⁇ N, and the H is an integer, and the identifiers of the H neighboring small base stations are identifiers of the neighboring small base stations in the N measurement reports. And transmitting the neighboring small cell identity set to the macro base station.
  • the processing unit 12 when receiving, by the macro base station, the power allocation indication information that is sent by the macro base station according to the current average channel quality of the first small base station and the current load, is specifically configured to: receive the macro base station according to the The current average channel quality of the first small base station, the current load, and the neighboring small base station identifier set, the power allocation indication information that is sent.
  • the processing unit 12 is further configured to send the current transmit power of the first small base station to the macro base station before receiving the power allocation indication information sent by the macro base station.
  • the processing unit 12 receives the power allocation indication information that is sent by the macro base station according to the current average channel quality, the current load, and the neighboring small base station identifier set of the first small base station.
  • the method is: receiving, by the macro base station, according to the current average channel quality, the current transmit power, the current load, and the neighboring small base station identifier set of the first small base station, Power allocation indication information.
  • the power allocation indication information is used to indicate that the transmit power to be used by the first small base station is the first transmit power or the second transmit power, and the first transmit power is greater than the second transmit power.
  • the second transmit power is zero transmit power.
  • the processing unit 12 is further configured to: schedule, by the first UE, to perform service transmission when the first small base station uses the first transmit power; where the first UE is configured to be high by the first small base station Any UE that is loaded or with high data rate traffic; and/or,
  • the processing unit 12 is further configured to: schedule, by the second UE, to perform service transmission when the first small base station uses the second transmit power; where the second UE performs low load or low data managed by the first small base station Any UE of the rate service.
  • the transceiver unit 11 is further configured to: when the first small base station uses the second transmit power, send scheduling indication information to the neighboring small base station, where the scheduling indication information is used to indicate the adjacent small
  • the base station schedules the edge UE managed by the neighboring small base station to perform service transmission on the first time-frequency resource; the first time-frequency resource is a time-frequency resource for performing service transmission by the central UE managed by the first small base station.
  • a transmit power of a reference signal of the first small base station is a current transmit power of the first small base station.
  • the processing unit 12 is further configured to: when the rate of change of the load of the first small base station in the preset time is greater than the first threshold, reduce a time period in which the N UEs report the measurement report; The rate of change of the load of the small base station in the preset time is less than the second threshold, and the time period for reporting the measurement report by the N UEs is increased;
  • the first threshold is greater than or equal to the second threshold.
  • the processing unit 12 when determining, according to the channel quality in the N measurement reports, the current average channel quality of the first small base station, is specifically configured to: determine channel quality in the N measurement reports.
  • the weighted average is the current instantaneous channel quality of the first small base station; and the first small is obtained according to the average channel quality obtained by the first small base station and the current instantaneous channel quality of the first small base station.
  • the current average channel quality of the base station is specifically configured to: determine channel quality in the N measurement reports.
  • the weighted average is the current instantaneous channel quality of the first small base station; and the first small is obtained according to the average channel quality obtained by the first small base station and the current instantaneous channel quality of the first small base station.
  • the small base station in this embodiment may be used to perform the technical solution executed by the first small base station in the foregoing method embodiments of the present invention, and the implementation principle and technical effects are similar, and details are not described herein again.
  • the macro base station in this embodiment may include: a receiving unit 21, a processing unit 22, and a sending unit 23; wherein, the receiving unit 21 is configured to receive The current average channel quality and current load of the first small base station sent by the first small base station; the first small base station is any small base station within the coverage of the macro base station; and the processing unit 22 is configured to The current average channel quality of the first small base station and the current load, determining a transmit power to be used by the first small base station, and a sending unit 23, configured to send power allocation indication information to the first small base station, where The power allocation indication information is used to indicate the transmit power to be used by the first small base station.
  • the processing unit 22 is specifically configured to: according to the current average channel quality of the first small base station is greater than a channel quality threshold, and the current load of the first small base station is greater than a load Determining, determining, by the first small base station, a transmit power to be used as the first transmit power; or
  • the first transmit power is greater than the second transmit power.
  • the receiving unit 21 is further configured to determine, by the processing unit 22, that the first small base station is to be used according to the current average channel quality of the first small base station and the current load. Receiving, by the first small base station, a neighboring small base station identifier set of the first small base station, where the neighboring small base station identifier set includes identifiers of H neighboring small base stations, where the H is An integer greater than or equal to 1;
  • the processing unit 22 is specifically configured to: when the current average channel quality of the first small base station is not greater than a channel quality threshold, and the current load of the first small base station is not less than a load threshold, according to the neighboring Obtaining a current set of the H neighboring small base stations; and determining, according to a current load of the H neighboring small base stations, a transmit power to be used by the first small base station.
  • the processing unit 22 determines, according to the current load of the H neighboring small base stations.
  • the transmit power to be used by the first small base station is specifically used to: when the current load of the H adjacent small base stations is less than a load threshold, determining that the transmit power to be used by the first small base station is the first transmit power.
  • the receiving unit 21 is further configured to: before the processing unit 22 determines the transmit power to be used by the first small base station, according to the current load of the H neighboring small base stations, receive, by the first small base station, The current transmit power of the first small base station;
  • the processing unit 22 determines the transmit power to be used by the first small base station according to the current load of the H neighboring small base stations, the processing unit 22 is specifically configured to:
  • the first transmit power is greater than the second transmit power.
  • the processing unit 22 determines the first small according to a current average channel quality and a current transmit power of the first small base station, and a current average channel quality and a current transmit power of the L neighboring small base stations.
  • the base station and the L neighboring small base stations are to use the transmit power, specifically:
  • the first transmit power for the second small base station in the first small base station set using the second transmit power for the small base station other than the second small base station in the first small base station set, and obtaining L+1 Different power combinations, each of the power combinations including transmit power used by the first small base station and the L adjacent small base stations; the first small base station set including the first small base station and Said L small neighboring base stations, wherein the second small base station is any one of the first small base station sets;
  • the transmit power used is used as the transmit power to be used by the first small base station and the L adjacent small base stations, respectively.
  • the processing unit 22 combines, in the power combination corresponding to the weighted average of the average channel quality of the first first small base station and the L adjacent small base stations, the first small base station and The transmit power used by the L neighboring small base stations is used as the transmit power to be used by the first small base station and the L adjacent small base stations, and is further used for:
  • a power combination corresponding to a weighted average of average channel qualities of the largest of the first small base station and the L adjacent small base stations that are currently determined, and a maximum of the last determined maximum size of the macro base station Determining the currently determined maximum of the first small base station and the L phases when a power combination corresponding to a weighted average of average channel qualities of the small base station and the L adjacent small base stations is the same
  • the weighted average of the average channel quality of the neighboring small base stations is not less than the weighted average of the average channel qualities of the first determined first small base station and the L adjacent small base stations stored last time by the macro base station .
  • the processing unit 22 is further configured to: update the weighted average of the average channel quality of the first determined first small base station and the L adjacent small base stations that are last determined to be updated, and store the current Determining a weighted average of the average channel qualities of the largest of the first small base station and the L adjacent small base stations.
  • processing unit 22 is further configured to:
  • the weighted average of the average channel quality of the station is smaller than the weighted average of the average channel quality of the first determined first small base station and the L adjacent small base stations stored by the macro base station;
  • the transmit power to be used by the three small base stations is the second transmit power, and the third small base station is the small base station currently using the first transmit power in the first set of small base stations;
  • the second small base station set includes all of the first small base station and all of the L adjacent small base stations except the third small base station; each of the power combinations includes Transmitting power used by each small base station in the second small base station set; the fourth small base station is any small base station in the second small base station set;
  • Transmitting power used by each small base station of the second small base station set as the power combination corresponding to the weighted average of the average channel qualities of the small base stations in the largest of the second small base station sets The transmit power to be used by each small base station in the second small base station set.
  • the second transmit power is zero transmit power.
  • the processing unit 22 is further configured to acquire the macro base station before determining the transmit power to be used by the first small base station according to the current average channel quality of the first small base station and the current load.
  • the macro base station in this embodiment may be used to perform the technical solution executed by the macro base station in the foregoing method embodiments of the present invention, and the implementation principle and technical effects are similar, and details are not described herein again.
  • the small base station in this embodiment may include: a transceiver 31 and a processor 32 as a first small base station;
  • the device 32 is configured to receive, by using the transceiver 31, the measurement report reported by the N user equipments that are managed by the first small base station, where the measurement report includes the channel quality measured by the UE that sends the measurement report; Determining, by the channel quality in the N measurement reports, a current average channel quality of the first small base station; and according to at least one of a current load and a current transmit power of the first small base station, and the current average channel Quality, acquiring the transmit power to be used by the first small base station.
  • the processor 32 acquires the first small base station to be used according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality. When transmitting power, it is specifically used to:
  • the first transmit power is greater than the second transmit power.
  • the processor 32 acquires the first small base station according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality.
  • the transmit power used is specifically used to: send, by the transceiver 31, the current average channel quality of the first small base station and the current load to a macro base station; the first small base station is a coverage of the macro base station Any small base station within;
  • the transceiver 31 Receiving, by the transceiver 31, the power allocation indication information that is sent by the macro base station according to the current average channel quality of the first small base station and the current load, where the power allocation indication information is used to indicate the first small base station Transmit power to be used;
  • each of the measurement reports further includes an identifier of a neighboring small base station that is the most interfered by the UE that sends the measurement report;
  • the processor 32 is further configured to: before receiving the power allocation indication information sent by the macro base station by using the transceiver 31, acquiring an identifier of the neighboring small base station according to the identifier of the neighboring small base station in the N measurement reports, where
  • the identifier of the neighboring small base station includes the identifiers of the H neighboring small base stations, 1 ⁇ H ⁇ N, and the H is an integer, and the identifiers of the H neighboring small base stations are the phases in the N measurement reports.
  • An identifier of the neighboring small base station and transmitting, by the transceiver 31, the neighboring small base station identifier set to the macro base station.
  • the processor 32 is configured to: when receiving, by the transceiver 31, the power allocation indication information that is sent by the macro base station according to the current average channel quality of the first small base station and the current load, The device 31 receives the power allocation indication information that is sent by the macro base station according to the current average channel quality of the first small base station, the current load, and the neighboring small base station identifier set.
  • the processor 32 is further configured to send the current transmit power of the first small base station to the macro base station by using the transceiver 31 before receiving the power allocation indication information sent by the macro base station by the transceiver 31.
  • the processor 32 receives, by using the transceiver 31, the foregoing, by the macro base station, according to the current average channel quality of the first small base station, the current load, and the neighboring small base station identifier set.
  • the power allocation indication information is specifically used to: receive, by the transceiver 31, the current average channel quality, the current transmit power, the current load, and the adjacent small number according to the first small base station by the macro base station. a set of base station identifiers, the power allocation indication information sent.
  • the power allocation indication information is used to indicate that the transmit power to be used by the first small base station is the first transmit power or the second transmit power, and the first transmit power is greater than the second transmit power.
  • the second transmit power is zero transmit power.
  • the processor 32 is further configured to: schedule, by the first UE, to perform service transmission when the first small base station uses the first transmit power; where the first UE is configured for the first small base station to perform high Any UE that is loaded or with high data rate traffic; and/or,
  • the processor 32 is further configured to: schedule, by the second UE, to perform service transmission when the first small base station uses the second transmit power; where the second UE performs low load or low data managed by the first small base station Any UE of the rate service.
  • the processor 32 is further configured to: when the first small base station uses the second transmit power, send, by using the transceiver 31, scheduling indication information, where the scheduling indication information is used to indicate The neighboring small base station schedules the edge UE managed by the neighboring small base station to perform service transmission on the first time-frequency resource; and the first time-frequency resource is used for performing service transmission by the central UE managed by the first small base station Frequency resources.
  • a transmit power of a reference signal of the first small base station is a current transmit power of the first small base station.
  • the processor 32 is further configured to: when the rate of change of the load of the first small base station in the preset time is greater than the first threshold, reduce a time period in which the N UEs report the measurement report; The rate of change of the load of the small base station in the preset time is less than the second threshold, and the time period for reporting the measurement report by the N UEs is increased;
  • the first threshold is greater than or equal to the second threshold.
  • the determining, by the processor 32, the current average channel quality of the first small base station according to the channel quality in the N measurement reports specifically, determining, determining channel quality in the N measurement reports.
  • the weighted average is the current instantaneous channel quality of the first small base station; and the first small is obtained according to the average channel quality obtained by the first small base station and the current instantaneous channel quality of the first small base station.
  • the current average channel quality of the base station is the current average channel quality of the base station.
  • the small base station in this embodiment may be used to perform the technical solution executed by the first small base station in the foregoing method embodiments of the present invention, and the implementation principle and technical effects are similar, and details are not described herein again.
  • the macro base station in this embodiment may include: a receiver 41, a processor 42, and a transmitter 43;
  • the processor 42 is configured to send, by the first small base station received by the receiver 41, a current average channel quality and a current load of the first small base station; the first small base station is a coverage area of the macro base station Any small base station in the circumference; determining, according to the current average channel quality of the first small base station and the current load, a transmit power to be used by the first small base station; The small base station sends power allocation indication information, where the power allocation indication information is used to indicate the transmit power to be used by the first small base station.
  • the processor 42 determines, according to the current average channel quality of the first small base station and the current load, the transmit power to be used by the first small base station, to:
  • the current average channel quality is greater than a channel quality threshold, and the current load of the first small base station is greater than a load threshold, determining that the first small base station is to use a transmit power as the first Transmit power; or,
  • the first transmit power is greater than the second transmit power.
  • the processor 42 is further configured to determine, according to the current average channel quality of the first small base station and the current load, a transmit power to be used by the first small base station.
  • the neighboring small base station identifier set of the first small base station that is sent by the first small base station is received by the receiver 41, where the neighboring small base station identifier set includes identifiers of H neighboring small base stations, where the H An integer greater than or equal to 1;
  • the processor 42 is configured to determine, when the first small base station is to use the transmit power, according to the current average channel quality of the first small base station and the current load, when the first small base station is used by the first small base station.
  • the current average channel quality is not greater than a channel quality threshold, and the current load of the first small base station is not less than a load threshold, acquiring the neighboring small base stations according to the neighboring small base station identifier set. a current load; and determining, according to a current load of the H neighboring small base stations, a transmit power to be used by the first small base station.
  • the processor 42 when determining, according to the current load of the H neighboring small base stations, is configured to: when the transmit power of the first small base station is to be used, specifically: when the H neighboring small base stations The current load is smaller than the load threshold, and the transmit power to be used by the first small base station is determined to be the first transmit power.
  • the processor 42 is further configured to: before determining, according to the current load of the H neighboring small base stations, the transmit power that is to be used by the first small base station, receive, by the receiver 41, the first small base station, The current transmit power of the first small base station;
  • the processor 42 is specifically configured to: when determining, according to the current load of the H neighboring small base stations, the transmit power to be used by the first small base station:
  • the first transmit power is greater than the second transmit power.
  • the processor 42 determines the first small according to a current average channel quality and a current transmit power of the first small base station, and a current average channel quality and a current transmit power of the L neighboring small base stations.
  • the base station and the L neighboring small base stations are to use the transmit power, specifically:
  • the first transmit power for the second small base station in the first small base station set using the second transmit power for the small base station other than the second small base station in the first small base station set, and obtaining L+1 Different power combinations, each of the power combinations including transmit power used by the first small base station and the L adjacent small base stations; the first small base station set including the first small base station and the L a neighboring small base station, wherein the second small base station is any small base in the first small base station set station;
  • the transmit power used is used as the transmit power to be used by the first small base station and the L adjacent small base stations, respectively.
  • the processor 42 combines, in the power combination corresponding to the weighted average of the average channel quality of the first first small base station and the L adjacent small base stations, the first small base station and The transmit power used by the L neighboring small base stations is used as the transmit power to be used by the first small base station and the L adjacent small base stations, and is further used for:
  • a power combination corresponding to a weighted average of average channel qualities of the largest of the first small base station and the L adjacent small base stations that are currently determined, and a maximum of the last determined maximum size of the macro base station Determining the currently determined maximum of the first small base station and the L phases when a power combination corresponding to a weighted average of average channel qualities of the small base station and the L adjacent small base stations is the same
  • the weighted average of the average channel quality of the neighboring small base stations is not less than the weighted average of the average channel qualities of the first determined first small base station and the L adjacent small base stations stored last time by the macro base station .
  • the processor 42 is further configured to: update a weighted average of the average channel quality of the first determined first small base station and the L adjacent small base stations that are last determined to be updated, and store the current Determining a weighted average of the average channel qualities of the largest of the first small base station and the L adjacent small base stations.
  • the processor 42 is further configured to: if the currently determined maximum weighted average of the average channel quality of the first small base station and the L adjacent small base stations is less than, the macro base The last determined maximum of the first small base station and the L adjacent small bases stored by the station a weighted average of the average channel quality of the station; determining a transmit power to be used by the third small base station as the second transmit power, where the third small base station is currently using the first transmit power in the first set of small base stations Small base station
  • the second small base station set includes all of the first small base station and all of the L adjacent small base stations except the third small base station; each of the power combinations includes Transmitting power used by each small base station in the second small base station set; the fourth small base station is any small base station in the second small base station set;
  • Transmitting power used by each small base station of the second small base station set as the power combination corresponding to the weighted average of the average channel qualities of the small base stations in the largest of the second small base station sets The transmit power to be used by each small base station in the second small base station set.
  • the second transmit power is zero transmit power.
  • the processor 42 is further configured to acquire the macro base station before determining the transmit power to be used by the first small base station according to the current average channel quality of the first small base station and the current load.
  • the macro base station in this embodiment may be used to perform the technical solution executed by the macro base station in the foregoing method embodiments of the present invention, and the implementation principle and technical effects are similar, and details are not described herein again.
  • FIG. 5 is a flowchart of Embodiment 1 of a method for managing a transmit power of a small base station according to the present invention. As shown in FIG. 5, the method in this embodiment may include:
  • the first small base station receives the measurement report reported by the N UEs managed by the first small base station.
  • the measurement report includes the channel quality measured by the UE that sends the measurement report.
  • the first small base station is any small base station in the coverage of the macro base station, and the first small base station may manage N UEs, where the N UEs may be all UEs managed by the first small base station, indicating the N
  • the serving base stations of the UEs are the first small base stations.
  • Each of the N UEs sends a measurement report to the first small base station, where each measurement report includes a channel quality measured by the UE that sends the measurement report; the channel quality may include, for example, a signal to interference and noise ratio (English: Signal-to-interference-plus-noise ratio, referred to as SINR.
  • SINR Signal-to-interference-plus-noise ratio
  • the first small base station determines a current average channel quality of the first small base station according to channel quality in the N measurement reports.
  • the first small base station after receiving the measurement report reported by the N UEs managed by the first small base station, determines the current average channel quality of the first small base station according to the channel quality included in the N measurement reports.
  • the first small base station determines the current average channel quality of the first small base station according to the channel quality in the N measurement reports
  • the first small base station determines the N Measuring a weighted average of the channel quality in the report to obtain a current instantaneous channel quality of the first small base station; and then the first small base station according to the average channel quality obtained by the first small base station, the current current of the first small base station Instantaneous channel quality, obtaining the current average channel quality of the first small base station.
  • the first small base station determines the N measurements.
  • the channel quality in the report is averaged, an average of the N channel qualities is obtained, and the average is determined as the current instantaneous channel quality of the first small base station.
  • the first small base station obtains a product of the first coefficient and the average channel quality obtained by the first small base station, and the product of the second coefficient and the current instantaneous channel quality of the first small base station.
  • the value is taken as the current average channel quality of the first small base station.
  • the sum of the first coefficient and the second coefficient is 1.
  • the second coefficient may represent a filter coefficient. Since the service number of the small base station is small and the service changes greatly, the second data may preferably be 0.5.
  • the first small base station acquires, according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality, a transmit power to be used by the first small base station.
  • the first small base station may determine a current load of the first small base station and a current transmit power of the first small base station (that is, a transmit power currently used by the first small base station); the first small base station acquires After the current average channel quality of the first small base station, the first small base station may acquire the first small base station according to at least one of a current load and a current transmit power of the first small base station, and the current average channel quality. The transmit power used.
  • the first small base station acquires the transmit power to be used by the first small base station in the i-th time slot (or subframe or frame or TTI), and the first small base station is in the i+jth time slot (or The frame or frame or TTI) uses the transmit power, and j is an integer greater than or equal to one.
  • the first small base station receives the measurement report reported by the N UEs managed by the first small base station, and each of the measurement reports includes the UE that sends the measurement report. Measured channel quality; and determining a current average channel quality of the first small base station according to channel quality in the N measurement reports; and then according to at least one of a current load and a current transmit power of the first small base station, and Obtaining, by the current average channel quality, a transmit power to be used by the first small base station; and the transmit power to be used by the first small base station is based on at least one of a current load and a current transmit power of the first small base station, and the The current average channel quality is obtained, thereby reducing the interference of the first small base station to the adjacent small base station and the macro base station, and improving the network throughput.
  • the specific implementation manner of S103 may exist in a feasible implementation manner as described below.
  • the first small base station determines that the first small base station is to use the transmit power according to the current average channel quality is greater than the channel quality threshold, and the current load is greater than the load threshold. A transmit power.
  • the first small base station determines, according to the current average channel quality, that the current quality is greater than a channel quality threshold, and that the current load is not greater than a load threshold, determining, by the first small base station, the transmit power to be used. Is the second transmit power.
  • the first small base station is not greater than a channel quality threshold according to the current average channel quality, and the current transmit power is greater than the second transmit The power is determined to be the transmit power to be used by the first small base station as the second transmit power.
  • the first small base station is not greater than the channel quality threshold according to the current average channel quality, and the current transmit power is not greater than the second transmit power, and the current load is greater than the load threshold. Determining, that the first small base station is to use the transmit power as the first transmit power.
  • the first small base station is not greater than the channel quality threshold according to the current average channel quality, and the current transmit power is not greater than the second transmit power, and the current load is not greater than the load. And determining a transmit power to be used by the first small base station as the second transmit power.
  • the first transmit power is greater than the second transmit power.
  • the second transmit power is zero transmit power.
  • the first transmit power is a full transmit power.
  • FIG. 6 is a flowchart of Embodiment 2 of a method for managing a transmit power of a small base station according to the present invention. As shown in FIG. 6, the method in this embodiment may include:
  • the first small base station receives the measurement report reported by the N UEs managed by the first small base station, where each of the measurement reports includes a channel quality measured by the UE that sends the measurement report.
  • the first small base station determines a current average channel quality of the first small base station according to channel quality in the N measurement reports.
  • the first small base station determines whether the current average channel quality is greater than a channel quality threshold. If not, execute S204; if yes, execute S205.
  • the first small base station after acquiring the current average channel quality of the first small base station, the first small base station compares the current average channel quality with a channel quality threshold, and when the first small base station determines the current location of the first small base station, When the average channel quality is less than or equal to the channel quality threshold, the first small base station acquires the current transmit power of the first small base station, and performs S204. When the first small base station determines that the current average channel quality of the first small base station is greater than the channel quality threshold, the first small base station acquires the current load of the first small base station, and performs S205.
  • the first small base station determines whether the current transmit power is greater than the second transmit power. If not, execute S205; if yes, execute S206.
  • the first small base station determines the current average channel quality of the first small base station.
  • the first small base station compares the current transmit power of the first small base station with the second transmit power, and when the first small base station determines that the current transmit power is less than or equal to the second transmit power The first small base station performs S205.
  • the first small base station determines that the current transmit power is greater than the second transmit power
  • the first small base station performs S206, that is, the first small base station determines the first small base station.
  • the transmit power to be used is the second transmit power.
  • the first small base station determines whether the current load is greater than a load threshold. If not, execute S206; if yes, execute S207.
  • the first small base station determines that the transmit power to be used by the first small base station is the second transmit power.
  • the first small base station determines that the transmit power to be used by the first small base station is the first transmit power.
  • the first small base station determines that the current average channel quality of the first small base station is greater than a channel quality threshold; or the first small base station determines that the current average channel quality of the first small base station is less than or
  • the first small base station compares the current load of the first small base station with a load threshold when the first small base station is equal to or smaller than the second transmit power, when the first small base station compares the first small base station with the load threshold.
  • the first small base station When the current load is less than or equal to the load threshold, the first small base station performs S206, that is, the first small base station determines that the transmit power to be used of the first small base station is the second transmit power; when the first small base station When the current load is greater than the load threshold, the first small base station performs S207, that is, the first small base station determines that the transmit power to be used of the first small base station is the first transmit power; wherein the first transmit power is greater than Second transmit power.
  • the first small base station receives the measurement report reported by the N UEs managed by the first small base station, and each of the measurement reports includes the UE that sends the measurement report. Measured channel quality; and determining a current average channel quality of the first small base station according to channel quality in the N measurement reports; and then according to at least one of a current load and a current transmit power of the first small base station, and Obtaining, by the current average channel quality, a transmit power to be used by the first small base station; and the transmit power to be used by the first small base station is based on at least one of a current load and a current transmit power of the first small base station, and the The current average channel quality is obtained, thereby reducing the interference of the first small base station to the adjacent small base station and the macro base station, and improving the network throughput.
  • FIG. 7 is a flowchart of Embodiment 3 of a method for managing a transmit power of a small base station according to the present invention. As shown in FIG. 7, the method in this embodiment may include:
  • the first small base station receives the measurement report reported by the N UEs managed by the first small base station, where each of the measurement reports includes a channel quality measured by the UE that sends the measurement report.
  • the first small base station determines a current average channel quality of the first small base station according to channel quality in the N measurement reports.
  • the first small base station sends the current average channel quality and the current load of the first small base station to the macro base station.
  • the first small base station is any small base station in the coverage of the macro base station, and the first small base station obtains the current average channel quality of the first small base station according to the received N measurement reports, and then sends the macro base station to the macro base station.
  • Sending the current average channel quality and current load of the first small base station for example, the first small base station may send the current average channel quality and the current load of the first small base station to the macro base station through the X2 interface.
  • each measurement report received by the first small base station further includes an identifier of a neighboring small base station that is the most interfered by the UE that sends the measurement report; the first small base station is configured according to the phase in the N measurement reports. And identifying, by the identifier of the neighboring small base station, the neighboring small base station identifier set, where the neighboring small base station identifier set includes identifiers of H neighboring small base stations, where 1 ⁇ H ⁇ N, and the H is an integer, the H neighboring small base stations The identifier is the identifier of the neighboring small base station in the N measurement reports.
  • the neighboring small base station identifier set acquired by the first small base station includes the identifiers of the N adjacent small base stations;
  • the neighboring small base station identifier set acquired by the first small base station includes an identifier smaller than the N neighboring small base stations.
  • the first small base station sends the neighboring small base station identifier set to the macro base station.
  • the first small base station sends the neighboring small base station identifier set to the macro base station by using an X2 interface.
  • the first small base station further sends the current transmit power of the first small base station to the macro base station; optionally, the first small base station sends the current transmit of the first small base station to the macro base station by using an X2 interface. power.
  • the first small base station sends the first small to the macro base station by using the same X2 interface signaling.
  • the first small base station receives the power allocation indication information that is sent by the macro base station according to the current average channel quality of the first small base station and the current load, where the power allocation indication information is used to indicate that the first small base station is to be used. Transmit power.
  • the first small base station determines, according to the power allocation indication information, a transmit power to be used by the first small base station.
  • the first small base station receives the power allocation indication information that is sent by the macro base station according to the current average channel quality of the first small base station and the current load, where the power allocation indication information is used to indicate the first small base station.
  • the transmit power to be used The first small base station receives the power allocation indication information sent by the macro base station, and determines that the power allocation indication information acquires the transmit power to be used by the first small base station.
  • the power allocation indication information is used to indicate that the transmit power to be used by the first small base station is the first transmit power or the second transmit power, and the first transmit power is greater than the second transmit power.
  • the second transmit power is zero transmit power.
  • the power allocation indication information received by the first small base station may be that the macro base station according to the first The current average channel quality of the small base station, the current load, and power allocation indication information sent by the neighboring small base station identifier set.
  • the power allocation indication information received by the first small base station may be that the macro base station according to the first small base station The current average channel quality, the current transmit power, the current load, and power allocation indication information sent by the neighboring small base station identity set.
  • the small base station transmit power management method provided by the embodiment, the first small base station receives the measurement report reported by the N UEs managed by the first small base station, and each of the measurement reports includes the UE that sends the measurement report. Measuring the channel quality; and determining the current average channel quality of the first small base station according to the channel quality in the N measurement reports; then transmitting the current load and the current average channel quality of the first small base station to the macro base station, receiving the macro base
  • the power allocation indication information sent by the station acquires the transmit power to be used by the first small base station according to the power allocation indication information; and the transmit power to be used by the first small base station is based on the current load of the first small base station and the current average channel quality. Obtained, thereby reducing interference of the first small base station to the adjacent small base station and the macro base station, and improving network throughput.
  • FIG. 8 is a flowchart of Embodiment 4 of a method for managing a transmit power of a small base station according to the present invention. As shown in FIG. 8, the method in this embodiment may include:
  • the macro base station receives a current average channel quality and a current load of the first small base station sent by the first small base station.
  • the small base station in the coverage of the macro base station sends the current average channel quality and the current load of the small base station to the macro base station, where any small base station in the coverage of the macro base station is taken as an example.
  • Any one of the small base stations is referred to as a first small base station.
  • the macro base station receives the current average channel quality and the current load of the first small base station sent by the first small base station; and the specific implementation process of the first small base station transmitting the current average channel quality of the first small base station and the current load to the macro base station.
  • the macro base station determines, according to the current average channel quality of the first small base station and the current load, a transmit power to be used by the first small base station.
  • the macro base station sends power allocation indication information to the first small base station, where the power allocation indication information is used to indicate a transmit power to be used by the first small base station.
  • the macro base station may be based on the current average channel quality of the first small base station and the current load. And determining a transmit power to be used by the first small base station. Then, the macro base station sends power allocation indication information to the first small base station, where the power allocation indication information is used to indicate the transmit power to be used by the first small base station. After receiving the power allocation indication information, the first small base station determines, according to the power allocation indication information, a transmit power to be used by the first small base station.
  • the small base station transmit power management method provided by the embodiment, the macro base station receiving, by the first small base station, the current average channel quality and the current load of the first small base station; according to the current average channel quality of the first small base station and the Determining a transmit power to be used by the first small base station, and transmitting, by the first small base station, power allocation indication information, where the power allocation indication information is used to indicate a transmit power to be used by the first small base station, so that the first A small base station determines the transmit power to be used according to the power allocation indication information.
  • the transmit power to be used by the first small base station is obtained according to the current load of the first small base station and the current average channel quality, the interference of the first small base station to the adjacent small base station and the macro base station is reduced, and the network throughput is improved. .
  • the macro base station performs the presence of S402 as The possible implementations described below.
  • the macro base station determines the first small base station according to the current average channel quality of the first small base station is greater than a channel quality threshold, and the current load of the first small base station is greater than a load threshold.
  • the transmit power to be used is the first transmit power.
  • the power allocation indication information sent by the macro base station to the first small base station is used to indicate that the transmit power to be used by the first small base station is the first transmit power.
  • the macro base station determines that the first small base station is greater than a channel quality threshold according to a current average channel quality of the first small base station, and the current load of the first small base station is not greater than a load threshold.
  • the transmit power to be used by the base station is the second transmit power.
  • the power allocation indication information sent by the macro base station to the first small base station is used to indicate that the transmit power to be used by the first small base station is the second transmit power.
  • the macro base station determines that the current base station quality of the first small base station is not greater than a channel quality threshold, and the current load of the first small base station is not greater than a load threshold.
  • the transmit power to be used by a small base station is the second transmit power.
  • the power allocation indication information sent by the macro base station to the first small base station is used to indicate that the transmit power to be used by the first small base station is the second transmit power.
  • the macro base station may further receive a neighboring small base station identifier set sent by the first small base station, where the neighboring small base station identifier set includes identifiers of H neighboring small base stations, where the For a specific implementation process of the small base station transmitting the neighboring small base station identifier set to the macro base station, refer to related descriptions in Embodiment 3 of the method of the present invention, and details are not described herein again.
  • the macro base station After the macro base station further receives the neighboring small base station identifier set sent by the first small base station, in the fourth feasible implementation manner that the macro base station performs S402, the macro base station is based on the current average of the first small base station.
  • the channel quality, the current load, and the neighboring small cell identity set determine the transmit power to be used by the first small base station.
  • the optional implementation of determining, by the macro base station, the transmit power to be used by the first small base station according to the current average channel quality, the current load, and the neighboring small base station identifier set of the first small base station When the current average channel quality of a small base station is not greater than a channel quality threshold, and the current load of the first small base station is greater than a load threshold, the macro base station acquires the H neighboring small base stations according to the neighboring small base station identifier set. Current load; then the macro base station determines the transmit power to be used by the first small base station according to the current load of the H neighboring small base stations.
  • the macro base station determines, according to the current load of the H neighboring small base stations, that the transmit power to be used by the first small base station has an optional implementation solution as described below.
  • the macro base station determines that the transmit power to be used by the first small base station is the first transmit power.
  • the macro base station may further receive the first small base station according to the current load of the H neighboring small base stations before determining the transmit power to be used by the first small base station.
  • the current transmit power sent by the small base station, and the specific implementation process of the first small base station transmitting the current transmit power of the first small base station to the macro base station may be referred to the related record in the third embodiment of the method of the present invention. Narration.
  • the macro base station determines, according to the current load of the H neighboring small base stations and the load threshold.
  • the macro base station acquires the L neighboring small base stations Current average channel quality and current transmit power; the macro base station determines the first small base station and the L adjacent small base stations according to current average channel quality and current transmit power of the first small base station and the L adjacent small base stations a transmit power to be used, wherein a transmit power to be used by the first small base station and the L adjacent small base stations is such that a sum of average channel qualities of the first small base station and the L adjacent small base stations is the largest;
  • the transmit power to be used by the small base station and one of the L adjacent small base stations is the first transmit power, and the transmit power to be used is the transmit power of the first small base station and the L adjacent small base stations.
  • the transmit power to be used by the base station is the second transmit power.
  • FIG. 9 is a flowchart of Embodiment 5 of a method for managing a transmit power of a small base station according to the present invention. As shown in FIG. 9, the method in this embodiment may include:
  • the macro base station receives, by the first small base station, a current average channel quality, a current transmit power, a current load, and a neighboring small base station identifier set of the first small base station.
  • the first small base station is any small base station within the coverage of the macro base station.
  • the first small base station receives the measurement report reported by the N UEs managed by the first small base station, where the measurement report includes the channel quality measured by the UE that sends the measurement report and the identifier of the neighboring small base station with the strongest interference.
  • the identifier of the neighboring small base station identifies the identifier of the neighboring small base station, where the identifier of the neighboring small base station includes the identifiers of the H neighboring small base stations, where 1 ⁇ H ⁇ N, and the H is an integer.
  • the first small base station then transmits the current average channel quality, the current transmit power, the current load, and the neighboring small base station identifier set of the first small base station to the macro base station.
  • the macro base station determines whether a current average channel quality of the first small base station is greater than a channel quality threshold. If yes, execute S503, if no, execute S504.
  • the macro base station compares the current average channel quality of the first small base station with the channel quality threshold, and when the macro base station determines that the current average channel quality is greater than the channel quality threshold, the macro base station performs S503. When the macro base station determines that the current average channel quality is less than or equal to the channel quality threshold, the macro base station performs S504.
  • the macro base station determines whether a current load of the first small base station is greater than a load threshold. If not, execute S505, and if yes, execute S508.
  • the macro base station compares the current load of the first small base station with a load threshold.
  • the macro base station determines that the current load of the first small base station is less than or equal to the load threshold
  • the macro base station performs S505, that is, the macro base station determines that the transmit power to be used by the first small base station is the second transmit power.
  • the macro base station determines that the current load of the first small base station is greater than the load threshold
  • the macro base station performs S508, that is, the macro base station determines that the transmit power to be used by the first small base station is the first transmit power.
  • the macro base station determines whether a current load of the first small base station is less than a load threshold. If yes, execute S505, if no, execute S506.
  • the macro base station compares the current load of the first small base station with a load threshold.
  • the macro base station determines that the current load of the first small base station is less than the load threshold, the macro base station performs S505, that is, the macro base station determines that the transmit power to be used by the first small base station is the second transmit power; when the macro base station determines When the current load of the first small base station is greater than or equal to the load threshold, the macro base station performs S506.
  • the macro base station determines that the transmit power to be used by the first small base station is the second transmit power.
  • the macro base station determines that the transmit power to be used by the first small base station is the second round. After the power is transmitted, the macro base station sends power allocation indication information to the first small base station, where the power allocation indication information indicates that the transmit power to be used by the first small base station is the second transmit power (not shown in FIG. 9).
  • the macro base station acquires a current load of the H neighboring small base stations according to the neighboring small base station identifier set of the first small base station.
  • the macro base station determines whether the current load of the H neighboring small base stations is less than a load threshold. If yes, execute S508; if no, execute S509.
  • the macro base station when the macro base station determines that the load of the first small base station is greater than or equal to the load threshold when performing S504, the macro base station according to the H neighboring small base stations in the adjacent small base station identifier set sent by the first small base station Identification of the current load of the N neighboring small base stations.
  • the current load of the N neighboring small base stations may be reported by the N neighboring small base stations to the macro base station.
  • the macro base station After the macro base station acquires the current load of the N neighboring small base stations, the macro base station compares the current load of the N neighboring small base stations with a load threshold. When the macro base station determines that the current load of the N neighboring small base stations is less than the load threshold, the macro base station performs S508, that is, the macro base station determines that the transmit power to be used by the first small base station is the first transmit power. When the macro base station determines that the current load of the N neighboring small base stations is not all less than the load threshold, the macro base station performs S509-S511.
  • the macro base station determines that the transmit power to be used by the first small base station is the first transmit power.
  • the macro base station after the macro base station determines that the transmit power to be used by the first small base station is the first transmit power, the macro base station sends power allocation indication information to the first small base station, where the power allocation indication information indicates the first The transmit power to be used by the small base station is the first transmit power (not shown in Figure 9).
  • the macro base station determines L neighboring small base stations whose current load is not less than the load threshold in the H neighboring small base stations.
  • the macro base station compares the current load of the H neighboring small base stations with the load threshold, and determines that the current load of the at least one neighboring small base station of the H neighboring small base stations is less than or equal to the load threshold.
  • the macro base station may determine, from the H neighboring small base stations, L neighboring small base stations whose current load is less than the load threshold, 1 ⁇ L ⁇ H, and the L is an integer.
  • the macro base station acquires current average channel quality and current transmission of the L neighboring small base stations. Shooting power.
  • the macro base station determines, from the H neighboring small base stations, L neighboring small base stations whose current load is less than or equal to the load threshold, and then the macro base station acquires the current average channel quality of the L neighboring small base stations. And current transmit power.
  • the current average channel quality of the L neighboring small base stations may be reported by the L neighboring small base stations to the macro base station.
  • the macro base station determines the first small base station and the L phases according to a current average channel quality and a current transmit power of the first small base station, and a current average channel quality and a current transmit power of the L neighboring small base stations. The transmit power to be used by the neighboring small base station.
  • the current transmit power of the first small base station and the current transmit power of the L neighboring small base stations may be configured by the macro base station to the first small base station and the L neighbors by using the last power allocation information.
  • the macro base station can acquire the current transmit power of the first small base station and the L adjacent small base stations.
  • the macro base station determines, according to the current average channel quality and the current transmit power of the first small base station, the current average channel quality of the L neighboring small base stations, and the current transmit power, the first small base station and the L adjacent small cells. The transmit power to be used by the base station.
  • the transmit power to be used by the first small base station and the L adjacent small base stations determined by the macro base station is such that the weighted average of the average channel quality of the first small base station and the L adjacent small base stations is the largest;
  • the transmit power to be used by the first small base station and the one of the L adjacent small base stations is the first transmit power, and the transmit power to be used in the first small base station and the L adjacent small base stations is
  • the transmit power to be used by the small base station other than the small base station of the first transmit power is the second transmit power.
  • the small base station whose transmit power is the first transmit power to be used may be the first small base station or any one of the L adjacent small base stations.
  • the macro base station after the macro base station performs S511, the macro base station separately sends power allocation indication information to the first small base station and the L neighboring small base stations, where the power allocation indication information is used to indicate receiving the power allocation indication information.
  • the transmit power of the small base station to be used.
  • the macro base station can control the transmission power of different small base stations to dynamically switch between the first transmission power and the second transmission power in a certain probability distribution manner;
  • the transmit power between the small base stations is offset in the same TTI, which reduces system interference.
  • the first transmit power is used for a certain probability time in a period of time to obtain better channel quality and ensure network capacity.
  • the other part of the probability time uses the second transmit power to reduce interference to neighboring small base stations.
  • All the small base stations in the coverage of the macro base station have a part of time to obtain a better channel quality by using the first transmit power, so that the user obtains a better signal to interference and noise ratio, performs high data rate communication, and the macro base station covers the range.
  • All the small base stations in the network also use the second transmit power for part of the time to reduce the interference to the adjacent small base stations; and the adjacent small base stations alternately switch between the first transmit power and the second transmit power, and the phase within the same transmission time interval
  • the transmission power between adjacent small base stations is staggered, thereby effectively reducing interference within the system.
  • three adjacent small base stations small base station 1, small base station 2, small base station 3 are used as an example.
  • both the small base station 1 and the small base station 3 use the second transmit power;
  • both the small base station 1 and the small base station 3 use the second transmit power;
  • both the small base station 3 uses the first transmit power, both the small base station 1 and the small base station 2 use the second transmit power.
  • the macro base station determines the transmit power to be used by the first small base station according to the current average channel quality of the first small base station and the current load.
  • a channel quality threshold can be obtained.
  • the macro base station obtains a channel quality threshold, the macro base station acquires a current average channel quality of M small base stations in a coverage of the macro base station; the M small base stations include the first small base station and The H neighboring small base stations, the M is an integer greater than or equal to H+1; and then the macro base station determines that the weighted average of the current average channel qualities of the M small base stations is the channel quality threshold.
  • S511 in this embodiment may include:
  • the macro base station uses the first transmit power for the second small base station in the first small base station set, and uses the second transmit power for the small base station except the second small base station in the first small base station set. Get L+1 different power combinations.
  • the first small base station set includes the first small base station and the foregoing L adjacent small base stations, that is, the first small base station set includes L+1 small base stations.
  • the macro base station uses the first transmit power for any of the first small base station sets, and uses the second transmit for the other small base stations other than the small base station that uses the first transmit power in the first small base station set. For power, L+1 different power combinations can be obtained, and each power combination includes the transmit power used by the first small base station and the L adjacent small base stations.
  • the first small base station is referred to as a small base station 1, and L is 3, and the first small base station is The three adjacent small base stations are respectively referred to as a small base station 2, a small base station 3, and a small base station 4; the small base station 1 uses the first transmit power, the small base station 2 uses the second transmit power, and the small base station 3 uses the second transmit power, The small base station 4 uses the second transmit power, which is called the first power combination; the small base station 1 uses the second transmit power, the small base station 2 uses the first transmit power, the small base station 3 uses the second transmit power, and the small base station 4 uses the first Two transmit power, this is called a second power combination; the small base station 1 uses the second transmit power, the small base station 2 uses the second transmit power, the small base station 3 uses the first transmit power, and the small base station 4 uses the second transmit power, which It is called a third power combination; the small base station 1 uses the second transmit power, the small base station 2 uses the second transmit power, the small base station 3 uses the third
  • the macro base station corresponds to a current average channel quality of the first small base station according to a current transmit power of the first small base station, and a current average transmit power of the L neighboring small base stations corresponds to a current average of the L adjacent small base stations.
  • Channel quality determining an average channel quality of the first small base station and the L adjacent small base stations corresponding to each power combination in the L+1 power combinations.
  • the macro base station may determine the relationship between the transmit power of the first small base station and the average channel quality, and the current transmit power of the first small base station and the current average channel quality of the first small base station, and then The macro base station may determine, according to the relationship between the transmit power and the average channel quality, an average channel quality corresponding to the first transmit power of the first small base station, and a second transmit power of the first small base station. Corresponding average channel quality when transmitting power; correspondingly, in a similar manner as described above, the macro base station may determine each neighbor according to the relationship between the transmit power of each adjacent small base station of the L adjacent small base stations and the average channel quality.
  • the transmit power of the small base station is the average channel quality corresponding to the first transmit power, and the average channel quality corresponding to the transmit power of each adjacent small base station is determined to be the second transmit power. Therefore, the macro base station can determine the average channel quality of the first small base station and the L adjacent small base stations corresponding to the respective power combinations.
  • the macro base station determines, among the weighted average values of average channel qualities of the first small base station and the L adjacent small base stations corresponding to the respective power combinations, the largest of the first small base station and the L adjacent small base stations. A weighted average of the average channel quality.
  • the first small base corresponding to each power combination may be acquired.
  • the macro base station may determine the average channel quality (corresponding to the first transmit power) of the small base station 1 corresponding to the first power combination, the average channel quality of the small base station 2 (corresponding to the second transmit power), and the small base station.
  • the average channel quality of 3 (corresponding to the second transmission power), the average channel quality of the small base station 4 (corresponding to the second transmission power), and then the average channel of the small base station 1, the small base station 2, the small base station 3, and the small base station 4 are obtained.
  • a weighted average of the masses gives a weighted average of 1.
  • the macro base station may determine the average channel quality (corresponding to the second transmit power) of the small base station 1 corresponding to the second power combination, the average channel quality of the small base station 2 (corresponding to the first transmit power), and the small base station 3 Average channel quality (corresponding to the second transmit power), average channel quality of the small base station 4 (corresponding to the second transmit power), and then determining the average channel quality of the small base station 1, the small base station 2, the small base station 3, and the small base station 4.
  • the weighted average is obtained and a weighted average of 2 is obtained.
  • the macro base station may determine an average channel quality (corresponding to the second transmit power) of the small base station 1 corresponding to the third power combination, the average channel quality of the small base station 2 (corresponding to the second transmit power), and the small base station 3 Average channel quality (corresponding to the first transmit power), average channel quality of the small base station 4 (corresponding to the second transmit power), and then determining the average channel quality of the small base station 1, the small base station 2, the small base station 3, and the small base station 4.
  • the weighted average is obtained and a weighted average of 3 is obtained.
  • the macro base station may determine the average channel quality (corresponding to the second transmit power) of the small base station 1 corresponding to the fourth power combination, the average channel quality of the small base station 2 (corresponding to the second transmit power), and the small base station 3 Average channel quality (corresponding to the second transmit power), average channel quality of the small base station 4 (corresponding to the first transmit power), and then determining the average channel quality of the small base station 1, the small base station 2, the small base station 3, and the small base station 4.
  • the weighted average is obtained and a weighted average of 4 is obtained.
  • the weighted averages 1, 2, 3, 4 are then compared to determine the largest value among them.
  • the macro base station combines the power corresponding to the weighted average of the average channel quality of the first small base station and the L adjacent small base stations, the first small base station and the L adjacent small base stations.
  • the transmit power used is used as the transmit power to be used by the first small base station and the L adjacent small base stations, respectively.
  • the macro base station determines the largest weighted average of the L+1 weighted average values. After that, the power combination used to obtain the maximum weighted average value may be determined, so that the transmit power used by the first small base station in the power combination may be determined as the transmit power to be used by the first small base station, and the power combination is L phases.
  • the transmit power used by the neighboring small base stations is the transmit power to be used by the L adjacent small base stations.
  • the macro base station may determine that the transmit power to be used by the small base station 1 is the second transmit power, and the transmit power to be used by the small base station 2 is the first. For a transmit power, the transmit power to be used by the small base station 3 is the second transmit power, and the transmit power to be used by the small base station 4 is the second transmit power.
  • the small base station transmit power management method provided in this embodiment is such that only one of the first small base station and the L adjacent small base stations uses the first transmit power, the other small base stations use the second transmit power, and the first small base station and The weighted average of the average channel qualities of the L adjacent small base stations is the largest. Thereby, the interference of the first small base station to the adjacent small base station and the macro base station is reduced, and the network throughput is improved.
  • FIG. 11 is a flowchart of Embodiment 7 of a method for managing a transmit power of a small base station according to the present invention.
  • the method in this embodiment details a possible implementation manner of S511 in FIG. 9 , and is omitted in FIG. 11 .
  • S501-S510 refer to the description in Embodiment 5 of the method of the present invention.
  • S511 in this embodiment may include:
  • the macro base station uses the first transmit power for the second small base station in the first small base station set, and uses the second transmit power for the small base station except the second small base station in the first small base station set. Get L+1 different power combinations.
  • the macro base station corresponds to a current average channel quality of the first small base station according to a current transmit power of the first small base station, and a current average transmit power of the L adjacent small base stations corresponds to a current average of the L adjacent small base stations.
  • Channel quality determining an average channel quality of the first small base station and the L adjacent small base stations corresponding to each power combination in the L+1 power combinations.
  • the macro base station determines, among the weighted average values of average channel qualities of the first small base station and the L adjacent small base stations corresponding to the respective power combinations, the largest of the first small base stations and the L adjacent small base stations. A weighted average of the average channel quality.
  • the macro base station determines whether the currently determined maximum weighted average value is smaller than the macro base station. The largest weighted average of the last time stored. If not, execute S705, and if yes, execute S707.
  • the macro base station determines the transmit power to be used by the first small base station, the power corresponding to the weighted average of the average channel quality of the first small base station and the L adjacent small base stations is not used. And determining, by the combination, the macro base station, in the power combination corresponding to the currently determined maximum weighted average of the average channel quality of the first small base station and the L adjacent small base stations, the first small base station and the L The transmit power used by the neighboring small base stations is used as the transmit power to be used by the first small base station and the L adjacent small base stations, respectively.
  • the macro base station determines the transmit power to be used by the first small base station last time, it is determined according to the power combination corresponding to the weighted average of the average channel quality of the first small base station and the L adjacent small base stations; Then, the macro base station calculates a weighted average of the average channel quality of the currently determined first small base station and the L adjacent small base stations (ie, the largest first base station and the L neighbors determined in S703)
  • the power combination corresponding to the weighted average of the average channel quality of the small base station corresponds to the weighted average of the average channel quality of the first small base station and the L adjacent small base stations determined by the macro base station last time. The power combinations are compared.
  • the macro base station combines the currently determined maximum power combination corresponding to the weighted average of the average channel quality of the first small base station and the L adjacent small base stations.
  • the transmit power used by the base station and the L adjacent small base stations is used as the transmit power to be used by the first small base station and the L adjacent small base stations, respectively.
  • the macro base station determines whether the currently determined weighted average of the average channel quality of the first first small base station and the L adjacent small base stations is smaller than, the macro base station stores The weighted average of the average channel quality of the first small base station and the L adjacent small base stations that were last determined; if not, execute S705, and if yes, execute S707.
  • the macro base station combines, in the power combination corresponding to the weighted average of the average channel quality of the first determined small base station and the L adjacent small base stations, the first small base station and the L neighbors.
  • the transmit power used by the small base station is used as the transmit power to be used by the first small base station and the L adjacent small base stations, respectively.
  • the macro base station updates, to the last determined maximum weighted average of the average channel quality of the first small base station and the L adjacent small base stations, to store the currently determined maximum size of the first small A weighted average of the average channel quality of the base station and the L neighboring small base stations.
  • the macro base station updates the weighted average of the average channel quality of the first determined first small base station and the L adjacent small base stations that are determined last time to the currently determined maximum of the first small base station and a weighted average of average channel qualities of the L neighboring small base stations; for preparing the stored value of the macro base station and the average channel quality of the first small base station and the L adjacent small base stations that are determined next time The weighted average is compared.
  • the macro base station determines that the transmit power to be used by the third small base station is the second transmit power, and the third small base station is the small base station that uses the first transmit power in the first set of small base stations.
  • the macro base station determines a weighted average of the average channel quality of the currently determined largest first small base station and L adjacent small base stations, which is smaller than the last determined first small base station stored by the macro base station. And the weighted average of the average channel qualities of the L neighboring small base stations, the macro base station may determine, in the first small base station set, the small base station currently using the first transmit power, where the small base station currently using the first transmit power is called The third small base station. The macro base station determines that the transmit power to be used by the third small base station is the second transmit power.
  • the macro base station uses the first transmit power to the fourth small base station in the second small base station set, and uses the second transmit power in the second small base station set except the fourth small base station to obtain the second transmit power. L different power combinations.
  • the second small base station set includes all the small base stations except the third small base station in the first small base station and the L adjacent small base stations.
  • Each power combination in S708 includes a transmit power used by the first small base station and the small base stations other than the third small base station among the L small neighboring base stations; the fourth small base station is the second small base station Any small base station in the set.
  • the macro base station determines an average channel quality of each small base station in the second small base station set corresponding to each power combination in the L power combinations.
  • the macro base station determines, by the weighted average of the average channel quality of each small base station in the second small base station set, a weighted average of average channel qualities of each small base station in the largest second small base station set.
  • the macro base station uses, as the first, the transmit power used by each small base station in the second small base station set in the power combination corresponding to the weighted average of the average channel quality of each small base station in the second small base station set.
  • the macro base station in this embodiment may determine the transmit power to be used by the first small base station and the L adjacent small base stations after performing S711.
  • the at least one possible implementation is also included.
  • the first small base station schedules, by the first UE, the service transmission when the first small base station uses the first transmit power; the first UE is the first small base station Any UE that manages high load or high data rate traffic; and/or,
  • the first small base station schedules a second UE to perform traffic transmission when the first small base station uses the second transmit power; and the second UE performs low load or low data rate managed by the first small base station Any UE of the service.
  • the first small base station when the first small base station uses the second transmit power, the first small base station sends scheduling indication information to a neighboring small base station, where the scheduling indication information is used to indicate The neighboring small base station schedules the edge UE managed by the neighboring small base station to perform service transmission on the first time-frequency resource; and the first time-frequency resource is used for performing service transmission by the central UE managed by the first small base station Frequency resources.
  • the edge UE refers to a UE whose physical location is at the edge of the coverage area of the serving small base station
  • the central UE refers to the UE whose physical location is at the center of the coverage area of the serving small base station.
  • a transmit power of a reference signal of the first small base station is the first The current transmit power of the small base station.
  • the first small base station when the rate of change of the load of the first small base station in the preset time is greater than the first threshold, the first small base station reduces the time period in which the N UEs report the measurement report. When the rate of change of the load of the first small base station in the preset time is less than the second threshold, the first small base station reduces the time period in which the N UEs report the measurement report; wherein the first threshold is greater than Or equal to the second threshold.
  • FIG. 12 is a schematic structural diagram of Embodiment 1 of a small base station transmit power management system according to the present invention.
  • the system of this embodiment includes a macro base station 10 and at least one small base station 20; wherein only one is shown in FIG.
  • the implementation principle of the station is similar to the technical effect, and will not be described here.
  • the small base station 20 can adopt the structure of any device embodiment of FIG. 1 or FIG. 3, which can correspondingly implement the solution executed by the first small base station in the foregoing method embodiments of the present invention, and the implementation principle and technical effect are similar. No longer.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing storage medium includes: read-only memory (English: Read-Only Memory, ROM for short), random access memory (English: Random Access Memory, RAM), disk or A variety of media such as optical discs that can store program code.

Abstract

本发明实施例提供一种小基站发射功率管理方法、设备和系统，此方法包括：第一小基站接收所述第一小基站管理的N个UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；所述第一小基站根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量；所述第一小基站根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率。由于第一小基站待使用的发射功率是根据第一小基站的当前负载和当前发射功率中的至少一个，以及该当前平均信道质量获取的，从而减小该第一小基站对相邻小基站和宏基站的干扰，提高网络吞吐量。

Description

小基站发射功率管理方法、设备和系统 技术领域
本发明实施例涉及通信技术领域，尤其涉及一种小基站发射功率管理方法、设备和系统。
背景技术
随着用户日益增加的移动数据业务的需求，密集小基站部署方案受到越来越多的关注。在异构无线网络(英文：Heterogeneous Network，简称：HetNet)中，宏基站和小基站同频部署，但是宏基站的发射功率大于小基站的发射功率，因此宏基站和小基站间会出现严重的干扰。但当小基站密集部署时，如在一个宏基站的覆盖范围里，可能被放置至少200个小基站，由于小基站出现视距或重叠覆盖，因此小基站间的干扰变得更加突出，同时密集小基站对宏基站的干扰也更强，降低了网络吞吐量。
发明内容
本发明实施例提供一种小基站发射功率管理方法、设备和系统，用于减小小基站对相邻小基站和宏基站的干扰，提高网络吞吐量。
第一方面，本发明实施例提供一种小基站，作为第一小基站，包括：收发单元，用于接收所述第一小基站管理的N个用户设备(User Equipment，简称：UE)上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；处理单元，用于根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量；以及根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率。
在第一方面的第一种可能的实现方式中，所述处理单元在根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率时，具体用于：
根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载大 于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载不大于负载阈值，确定所述第一小基站使待用的发射功率为第二发射功率；或者，
根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率大于第二发射功率，确定所述第一小基站待使用的发射功率为所述第二发射功率；或者，
根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于所述第二发射功率，且所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于第二发射功率，且所述当前负载不大于负载阈值，确定所述第一小基站待使用的发射功率为所述第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
在第一方面的第二种可能的实现方式中，所述处理单元在根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率时，具体用于：向宏基站发送所述第一小基站的所述当前平均信道质量和所述当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；
接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率；
根据所述功率分配指示信息确定所述第一小基站待使用的发射功率。
结合第一方面的第二种可能的实现方式，在第一方面的第三种可能的实现方式中，每个所述测量报告还包括发送所述测量报告的所述UE测量的干扰最强的相邻小基站的标识；
所述处理单元还用于在接收所述宏基站发送的功率分配指示信息之前，根据所述N个测量报告中的相邻小基站的标识，获取相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，1≤H≤N，且所述 H为整数，所述H个相邻小基站的标识为所述N个测量报告中的相邻小基站的标识；以及向所述宏基站发送所述相邻小基站标识集。
结合第一方面的第三种可能的实现方式，在第一方面的第四种可能的实现方式中，所述处理单元在接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息时，具体用于：接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
结合第一方面的第四种可能的实现方式，在第一方面的第五种可能的实现方式中，所述处理单元还用于在接收所述宏基站发送的功率分配指示信息之前，向所述宏基站发送所述第一小基站的当前发射功率。
结合第一方面的第五种可能的实现方式，在第一方面的第六种可能的实现方式中，所述处理单元在接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息时，具体用于：接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前发射功率、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
结合第一方面的第二种至第六种可能的实现方式中的任意一种，在第一方面的第七种可能的实现方式中，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率为第一发射功率或者第二发射功率，所述第一发射功率大于所述第二发射功率。
结合第一方面的第一种可能的实现方式或第七种可能的实现方式，在第一方面的第八种可能的实现方式中，所述第二发射功率为零发射功率。
结合第一方面的第一种可能的实现方式或第七种可能的实现方式或第八种可能的实现方式，在第一方面的第九种可能的实现方式中，所述处理单元，还用于调度第一UE在所述第一小基站使用所述第一发射功率时进行业务传输；所述第一UE为所述第一小基站管理的进行高负载或高数据速率业务的任一UE；和/或，
所述处理单元，还用于调度第二UE在所述第一小基站使用所述第二发射功率时进行业务传输；所述第二UE为所述第一小基站管理的进行低负载或低数据速率业务的任一UE。
结合第一方面的第一种可能的实现方式或第七种至第九种可能的实现方式中的任意一种，在第一方面的第十种可能的实现方式中，所述收发单元，还用于当所述第一小基站使用所述第二发射功率时，向相邻小基站发送调度指示信息，所述调度指示信息用于指示所述相邻小基站调度所述相邻小基站管理的边缘UE在第一时频资源上进行业务传输；所述第一时频资源为所述第一小基站管理的中心UE进行业务传输的时频资源。
结合第一方面的第一种可能的实现方式或第七种至第十种可能的实现方式中的任意一种，在第一方面的第十一种可能的实现方式中，当所述第一小基站使用所述第二发射功率或所述第一发射功率时，所述第一小基站的参考信号的发射功率为所述第一小基站的当前发射功率。
结合第一方面或第一方面的第一种至第十一种可能的实现方式中的任意一种，在第一方面的第十二种可能的实现方式中，所述处理单元还用于，当所述第一小基站的负载在预设时间内的变化率大于第一阈值，降低所述N个UE上报测量报告的时间周期；当所述第一小基站的负载在预设时间内的变化率小于第二阈值，增大所述N个UE上报测量报告的时间周期；
其中，所述第一阈值大于或等于所述第二阈值。
结合第一方面或第一方面的第一种至第十二种可能的实现方式中的任意一种，在第一方面的第十三种可能的实现方式中，所述处理单元在根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量时，具体用于：确定所述N个测量报告中的信道质量的加权平均值为所述第一小基站的当前瞬时信道质量；以及根据所述第一小基站上一次获得的平均信道质量、所述第一小基站的当前瞬时信道质量，获得所述第一小基站所述当前平均信道质量。
第二方面，本发明实施例提供一种宏基站，包括：接收单元，用于接收第一小基站发送的所述第一小基站的当前平均信道质量和当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；处理单元，用于根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率；发送单元，用于向所述第一小基站发送功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的 发射功率。
在第二方面的第一种可能的实现方式中，所述处理单元具体用于，根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载不大于负载阈值，确定所述第一小基站待使用的发射功率为第二发射功率；或者，
根据所述第一小基站的所述当前平均信道质量不大于信道质量阈值，以及所述第一小基站的所述当前负载小于负载阈值，确定所述第一小基站待使用的发射功率为第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
在第二方面的第二种可能的实现方式中，所述接收单元还用于在所述处理单元根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，接收所述第一小基站发送的所述第一小基站的相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，所述H为大于或等于1的整数；
所述处理单元具体用于，当所述第一小基站的所述当前平均信道质量不大于信道质量阈值，且所述第一小基站的所述当前负载不小于负载阈值时，根据所述相邻小基站标识集，获取所述H个相邻小基站的当前负载；以及根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率。
结合第二方面的第二种可能的实现方式中，在第二方面的第三种可能的实现方式中，所述处理单元在根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率时，具体用于：当所述H个相邻小基站的当前负载均小于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率。
结合第二方面的第二种可能的实现方式中，在第二方面的第四种可能的实现方式中，所述接收单元还用于在所述处理单元根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率之前，接收所述 第一小基站发送的所述第一小基站的当前发射功率；
所述处理单元在根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率时，具体用于：
当所述H个相邻小基站中至少一个相邻小基站的当前负载不小于所述负载阈值时，根据所述H个相邻小基站的当前负载和所述负载阈值，确定所述H个相邻小基站中当前负载不小于所述负载阈值的L个相邻小基站，1≤L<H，且所述L为整数；获取所述L个相邻小基站的当前平均信道质量和当前发射功率；以及
根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率；其中，所述第一小基站和所述L个相邻小基站待使用的发射功率使得所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值最大；所述第一小基站和所述L个相邻小基站中的其中一个小基站待使用的发射功率为第一发射功率，所述第一小基站和所述L个相邻小基站中所述除待使用的发射功率为所述第一发射功率的小基站之外的小基站待使用的发射功率为第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
结合第二方面的第四种可能的实现方式中，在第二方面的第五种可能的实现方式中，所述处理单元在根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率时，具体用于：
对第一小基站集合中的第二小基站使用第一发射功率，对所述第一小基站集合中除所述第二小基站之外的小基站使用第二发射功率，得到L+1个不同的功率组合，每个所述功率组合包括所述第一小基站和所述L个相邻小基站使用的发射功率；所述第一小基站集合包括所述第一小基站和所述L个相邻小基站，所述第二小基站为所述第一小基站集合中的任一小基站；
根据所述第一小基站的当前发射功率对应所述第一小基站的当前平均信道质量，以及所述L个相邻小基站的当前发射功率对应所述L个相邻 小基站的当前平均信道质量，确定所述L+1个功率组合中各个功率组合对应的所述第一小基站和所述L个相邻小基站的平均信道质量；
确定所述各个功率组合对应的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值中，最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；
将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率分别作为所述第一小基站和所述L个相邻小基站待使用的发射功率。
结合第二方面的第五种可能的实现方式中，在第二方面的第六种可能的实现方式中，所述处理单元在将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率作为所述第一小基站和所述L个相邻小基站待使用的发射功率之前，还用于：
当当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合与所述宏基站上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合相同时，确定所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，不小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
结合第二方面的第六种可能的实现方式中，在第二方面的第七种可能的实现方式中，所述处理单元还用于，将存储上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，更新为，存储所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
结合第二方面的第六种可能的实现方式中或第七种可能的实现方式，在第二方面的第八种可能的实现方式中，所述处理单元还用于：
若所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，小于，所述宏基站存储的上一次确定的 最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；确定第三小基站待使用的发射功率为第二发射功率，所述第三小基站为所述第一小基站集合中当前使用所述第一发射功率的小基站；
对第二小基站集合中的第四小基站使用第一发射功率，对所述第二小基站集合中的除所述第四小基站之外的小基站使用第二发射功率，得到L个不同的功率组合；所述第二小基站集包括所述第一小基站和所述L个相邻小基站中除所述第三小基站之外的所有小基站；每个所述功率组合包括所述第二小基站集合的各个小基站使用的发射功率；所述第四小基站为所述第二小基站集合中的任一小基站；
确定所述L个功率组合中各个功率组合对应的所述第二小基站集中的各个小基站的平均信道质量；
确定所述第二小基站集合中的各个小基站的平均信道质量的加权平均值中，最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值；
将所述最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值所对应的功率组合中，所述第二小基站集合的各个小基站使用的发射功率作为所述第二小基站集合中的各个小基站待使用的发射功率。
结合第二方面的第一种可能的实现方式或第四种至第八种可能的实现方式中的任意一种，在第二方面的第九种可能的实现方式中，所述第二发射功率为零发射功率。
结合第二方面的第一种可能至第九种可能的实现方式中的任意一种，在第二方面的第十种可能的实现方式中，所述处理单元还用于在根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，获取所述宏基站的覆盖范围内M个小基站的当前平均信道质量；所述M个小基站包括所述第一小基站和所述H个相邻小基站，所述M为大于或等于H+1的整数；以及确定所述M个小基站的当前平均信道质量的加权平均值为所述信道质量阈值。
第三方面，本发明实施例提供一种小基站发射功率管理方法，所述方法包括：
第一小基站接收所述第一小基站管理的N个UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；
所述第一小基站根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量；
所述第一小基站根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率。
在第三方面的第一种可能的实现方式中，所述第一小基站根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率，包括：
所述第一小基站根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
所述第一小基站根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载不大于负载阈值，确定所述第一小基站使待用的发射功率为第二发射功率；或者，
所述第一小基站根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率大于第二发射功率，确定所述第一小基站待使用的发射功率为所述第二发射功率；或者，
所述第一小基站根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于所述第二发射功率，且所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
所述第一小基站根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于第二发射功率，且所述当前负载不大于负载阈值，确定所述第一小基站待使用的发射功率为所述第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
在第三方面的第二种可能的实现方式中，所述第一小基站根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率，包括：
所述第一小基站向宏基站发送所述第一小基站的所述当前平均信道 质量和所述当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；
所述第一小基站接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率；
所述第一小基站根据所述功率分配指示信息确定所述第一小基站待使用的发射功率。
结合第三方面的第二种可能的实现方式，在第三方面的第三种可能的实现方式中，每个所述测量报告还包括发送所述测量报告的所述UE测量的干扰最强的相邻小基站的标识；
所述第一小基站接收所述宏基站发送的功率分配指示信息之前，还包括：
所述第一小基站根据所述N个测量报告中的相邻小基站的标识，获取相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，1≤H≤N，且所述H为整数，所述H个相邻小基站的标识为所述N个测量报告中的相邻小基站的标识；
所述第一小基站向所述宏基站发送所述相邻小基站标识集。
结合第三方面的第三种可能的实现方式，在第三方面的第四种可能的实现方式中，所述第一小基站接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息，包括：
所述第一小基站接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
结合第三方面的第四种可能的实现方式，在第三方面的第五种可能的实现方式中，所述第一小基站接收所述宏基站发送的功率分配指示信息之前，还包括：
所述第一小基站向所述宏基站发送所述第一小基站的当前发射功率。
结合第三方面的第五种可能的实现方式，在第三方面的第六种可能的实现方式中，所述第一小基站接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所 述功率分配指示信息，包括：
所述第一小基站接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前发射功率、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
结合第三方面的第二种至第六种可能的实现方式中的任意一种，在第三方面的第七种可能的实现方式中，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率为第一发射功率或者第二发射功率，所述第一发射功率大于所述第二发射功率。
结合第三方面的第一种可能的实现方式或第七种可能的实现方式，在第三方面的第八种可能的实现方式中，所述第二发射功率为零发射功率。
结合第三方面的第一种可能的实现方式或第七种可能的实现方式或第八种可能的实现方式，在第三方面的第九种可能的实现方式中，还包括：所述第一小基站调度第一UE在所述第一小基站使用所述第一发射功率时进行业务传输；所述第一UE为所述第一小基站管理的进行高负载或高数据速率业务的任一UE；和/或，
所述第一小基站调度第二UE在所述第一小基站使用所述第二发射功率时进行业务传输；所述第二UE为所述第一小基站管理的进行低负载或低数据速率业务的任一UE。
结合第三方面的第一种可能的实现方式或第七种至第九种可能的实现方式中的任意一种，在第三方面的第十种可能的实现方式中，还包括：
当所述第一小基站使用所述第二发射功率时，所述第一小基站向相邻小基站发送调度指示信息，所述调度指示信息用于指示所述相邻小基站调度所述相邻小基站管理的边缘UE在第一时频资源上进行业务传输；所述第一时频资源为所述第一小基站管理的中心UE进行业务传输的时频资源。
结合第三方面的第一种可能的实现方式或第七种至第十种可能的实现方式中的任意一种，在第三方面的第十一种可能的实现方式中，当所述第一小基站使用所述第二发射功率或所述第一发射功率时，所述第一小基站的参考信号的发射功率为所述第一小基站的当前发射功率。
结合第三方面或第三方面的第一种至第十一种可能的实现方式中的 任意一种，在第三方面的第十二种可能的实现方式中，还包括：
当所述第一小基站的负载在预设时间内的变化率大于第一阈值，所述第一小基站降低所述N个UE上报测量报告的时间周期；
当所述第一小基站的负载在预设时间内的变化率小于第二阈值，所述第一小基站增大所述N个UE上报测量报告的时间周期；
其中，所述第一阈值大于或等于所述第二阈值。
结合第三方面或第三方面的第一种至第十二种可能的实现方式中的任意一种，在第三方面的第十三种可能的实现方式中，所述第一小基站根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量，包括：
所述第一小基站确定所述N个测量报告中的信道质量的加权平均值为所述第一小基站的当前瞬时信道质量；
所述第一小基站根据所述第一小基站上一次获得的平均信道质量、所述第一小基站的当前瞬时信道质量，获得所述第一小基站所述当前平均信道质量。
第四方面，本发明实施例还提供一种小基站发射功率管理方法，包括：
宏基站接收第一小基站发送的所述第一小基站的当前平均信道质量和当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；
所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率；
所述宏基站向所述第一小基站发送功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率。
在第四方面的第一种可能的实现方式中，所述宏基站根据所述第一小基站的所述当前信道质量和所述当前负载，确定所述第一小基站待使用的发射功率，包括：
所述宏基站根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
所述宏基站根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载不大于负载阈值，确定所 述第一小基站待使用的发射功率为第二发射功率；或者，
所述宏基站根据所述第一小基站的所述当前平均信道质量不大于信道质量阈值，以及所述第一小基站的所述当前负载小于负载阈值，确定所述第一小基站待使用的发射功率为第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
在第四方面的第二种可能的实现方式中，所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，还包括：
所述宏基站接收所述第一小基站发送的所述第一小基站的相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，所述H为大于或等于1的整数；
所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率，包括：
当所述第一小基站的所述当前平均信道质量不大于信道质量阈值，且所述第一小基站的所述当前负载不小于负载阈值时，所述宏基站根据所述相邻小基站标识集，获取所述H个相邻小基站的当前负载；
所述宏基站根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率。
结合第四方面的第二种可能的实现方式中，在第四方面的第三种可能的实现方式中，所述宏基站根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率，包括：
当所述H个相邻小基站的当前负载均小于负载阈值，所述宏基站确定所述第一小基站待使用的发射功率为第一发射功率。
结合第四方面的第二种可能的实现方式中，在第四方面的第四种可能的实现方式中，所述宏基站根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率之前，还包括：所述宏基站接收所述第一小基站发送的所述第一小基站的当前发射功率；
所述宏基站根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率，包括：
当所述H个相邻小基站中至少一个相邻小基站的当前负载不小于所 述负载阈值时，所述宏基站根据所述H个相邻小基站的当前负载和所述负载阈值，确定所述H个相邻小基站中当前负载不小于所述负载阈值的L个相邻小基站，1≤L<H，且所述L为整数；
所述宏基站获取所述L个相邻小基站的当前平均信道质量和当前发射功率；
所述宏基站根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率；其中，所述第一小基站和所述L个相邻小基站待使用的发射功率使得所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值最大；所述第一小基站和所述L个相邻小基站中的其中一个小基站待使用的发射功率为第一发射功率，所述第一小基站和所述L个相邻小基站中所述除待使用的发射功率为所述第一发射功率的小基站之外的小基站待使用的发射功率为第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
结合第四方面的第四种可能的实现方式中，在第四方面的第五种可能的实现方式中，所述宏基站根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率，包括：
所述宏基站对第一小基站集合中的第二小基站使用第一发射功率，对所述第一小基站集合中除所述第二小基站之外的小基站使用第二发射功率，得到L+1个不同的功率组合，每个所述功率组合包括所述第一小基站和所述L个相邻小基站使用的发射功率；所述第一小基站集合包括所述第一小基站和所述L个相邻小基站，所述第二小基站为所述第一小基站集合中的任一小基站；
所述宏基站根据所述第一小基站的当前发射功率对应所述第一小基站的当前平均信道质量，以及所述L个相邻小基站的当前发射功率对应所述L个相邻小基站的当前平均信道质量，确定所述L+1个功率组合中各个功率组合对应的所述第一小基站和所述L个相邻小基站的平均信道质量；
所述宏基站确定所述各个功率组合对应的所述第一小基站和所述L 个相邻小基站的平均信道质量的加权平均值中，最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；
所述宏基站将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率分别作为所述第一小基站和所述L个相邻小基站待使用的发射功率。
结合第四方面的第五种可能的实现方式中，在第四方面的第六种可能的实现方式中，所述宏基站将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率作为所述第一小基站和所述L个相邻小基站待使用的发射功率之前，还包括：
当所述宏基站当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合与所述宏基站上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合相同时，所述宏基站确定所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，不小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
结合第四方面的第六种可能的实现方式中，在第四方面的第七种可能的实现方式中，还包括：
所述宏基站将存储上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，更新为，存储所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
结合第四方面的第六种可能的实现方式中或第七种可能的实现方式，在第四方面的第八种可能的实现方式中，还包括：
若所述宏基站确定所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；所述宏基站确定第三小基站待使用的发射功率为第 二发射功率，所述第三小基站为所述第一小基站集合中当前使用所述第一发射功率的小基站；
所述宏基站对第二小基站集合中的第四小基站使用第一发射功率，对所述第二小基站集合中的除所述第四小基站之外的小基站使用第二发射功率，得到L个不同的功率组合；所述第二小基站集包括所述第一小基站和所述L个相邻小基站中除所述第三小基站之外的所有小基站；每个所述功率组合包括所述第二小基站集合的各个小基站使用的发射功率；所述第四小基站为所述第二小基站集合中的任一小基站；
所述宏基站确定所述L个功率组合中各个功率组合对应的所述第二小基站集中的各个小基站的平均信道质量；
所述宏基站确定所述第二小基站集合中的各个小基站的平均信道质量的加权平均值中，最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值；
所述宏基站将所述最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值所对应的功率组合中，所述第二小基站集合的各个小基站使用的发射功率作为所述第二小基站集合中的各个小基站待使用的发射功率。
结合第四方面的第一种可能的实现方式或第四种至第八种可能的实现方式中的任意一种，在第四方面的第九种可能的实现方式中，所述第二发射功率为零发射功率。
结合第四方面的第一种可能至第九种可能的实现方式中的任意一种，在第四方面的第十种可能的实现方式中，所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，还包括：
所述宏基站获取所述宏基站的覆盖范围内M个小基站的当前平均信道质量；所述M个小基站包括所述第一小基站和所述H个相邻小基站，所述M为大于或等于H+1的整数；
所述宏基站确定所述M个小基站的当前平均信道质量的加权平均值为所述信道质量阈值。
第五方面，本发明实施例提供一种小基站发射功率管理系统，包括： 至少一个本发明第一方面的各个可能的实现方式提供的小基站，以及本发明第二方面的各个可能的实现方式提供的宏基站。
本发明实施例提供的小基站发射功率管理方法、设备和系统，通过第一小基站接收所述第一小基站管理的N个UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；并根据该N个测量报告中的信道质量，确定该第一小基站的当前平均信道质量；然后根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率；由于第一小基站待使用的发射功率是根据第一小基站的当前负载和当前发射功率中的至少一个，以及该当前平均信道质量获取的，从而减小该第一小基站对相邻小基站和宏基站的干扰，提高网络吞吐量。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图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为本发明小基站实施例一的结构示意图；
图2为本发明宏基站实施例一的结构示意图；
图3为本发明小基站实施例二的结构示意图；
图4为本发明宏基站实施例二的结构示意图；
图5为本发明小基站发射功率管理方法实施例一的流程图；
图6为本发明小基站发射功率管理方法实施例二的流程图；
图7为本发明小基站发射功率管理方法实施例三的流程图；
图8为本发明小基站发射功率管理方法实施例四的流程图；
图9为本发明小基站发射功率管理方法实施例五的流程图；
图10为本发明小基站发射功率管理方法实施例六的流程图；
图11为本发明小基站发射功率管理方法实施例七的流程图；
图12这本发明小基站发射功率管理系统实施例一的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
图1为本发明小基站实施例一的结构示意图，如图1所示，本实施例的小基站作为第一小基站可以包括：收发单元11和处理单元12；其中，收发单元11，用于接收所述第一小基站管理的N个用户设备UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；处理单元12，用于根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量；以及根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率。
在一种可选的实现方案中，处理单元12在根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率时，具体用于：
根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载不大于负载阈值，确定所述第一小基站使待用的发射功率为第二发射功率；或者，
根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率大于第二发射功率，确定所述第一小基站待使用的发射功率为所述第二发射功率；或者，
根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于所述第二发射功率，且所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射 功率不大于第二发射功率，且所述当前负载不大于负载阈值，确定所述第一小基站待使用的发射功率为所述第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
在另一种可选的实现方式中，处理单元12在根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率时，具体用于：
向宏基站发送所述第一小基站的所述当前平均信道质量和所述当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；
接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率；
根据所述功率分配指示信息确定所述第一小基站待使用的发射功率。
可选地，每个所述测量报告还包括发送所述测量报告的所述UE测量的干扰最强的相邻小基站的标识；
处理单元12还用于在接收所述宏基站发送的功率分配指示信息之前，根据所述N个测量报告中的相邻小基站的标识，获取相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，1≤H≤N，且所述H为整数，所述H个相邻小基站的标识为所述N个测量报告中的相邻小基站的标识；以及向所述宏基站发送所述相邻小基站标识集。
可选地，处理单元12在接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息时，具体用于：接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
可选地，处理单元12还用于在接收所述宏基站发送的功率分配指示信息之前，向所述宏基站发送所述第一小基站的当前发射功率。
可选地，处理单元12在接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息时，具体用于：接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前发射功率、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
可选地，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率为第一发射功率或者第二发射功率，所述第一发射功率大于所述第二发射功率。
可选地，所述第二发射功率为零发射功率。
可选地，处理单元12，还用于调度第一UE在所述第一小基站使用所述第一发射功率时进行业务传输；所述第一UE为所述第一小基站管理的进行高负载或高数据速率业务的任一UE；和/或，
处理单元12，还用于调度第二UE在所述第一小基站使用所述第二发射功率时进行业务传输；所述第二UE为所述第一小基站管理的进行低负载或低数据速率业务的任一UE。
可选地，收发单元11，还用于当所述第一小基站使用所述第二发射功率时，向相邻小基站发送调度指示信息，所述调度指示信息用于指示所述相邻小基站调度所述相邻小基站管理的边缘UE在第一时频资源上进行业务传输；所述第一时频资源为所述第一小基站管理的中心UE进行业务传输的时频资源。
可选地，当所述第一小基站使用所述第二发射功率或所述第一发射功率时，所述第一小基站的参考信号的发射功率为所述第一小基站的当前发射功率。
可选地，处理单元12还用于，当所述第一小基站的负载在预设时间内的变化率大于第一阈值，降低所述N个UE上报测量报告的时间周期；当所述第一小基站的负载在预设时间内的变化率小于第二阈值，增大所述N个UE上报测量报告的时间周期；
其中，所述第一阈值大于或等于所述第二阈值。
可选地，处理单元12在根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量时，具体用于：确定所述N个测量报告中的信道质量的加权平均值为所述第一小基站的当前瞬时信道质量；以及根据所述第一小基站上一次获得的平均信道质量、所述第一小基站的当前瞬时信道质量，获得所述第一小基站所述当前平均信道质量。
本实施例的小基站，可以用于执行本发明上述各方法实施例中第一小基站执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图2为本发明宏基站实施例一的结构示意图，如图2所示，本实施例的宏基站可以包括：接收单元21、处理单元22和发送单元23；其中，接收单元21，用于接收第一小基站发送的所述第一小基站的当前平均信道质量和当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；处理单元22，用于根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率；发送单元23，用于向所述第一小基站发送功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率。
在一种可选的实现方案中，处理单元22具体用于，根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载不大于负载阈值，确定所述第一小基站待使用的发射功率为第二发射功率；或者，
根据所述第一小基站的所述当前平均信道质量不大于信道质量阈值，以及所述第一小基站的所述当前负载小于负载阈值，确定所述第一小基站待使用的发射功率为第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
在另一种可选的实现方案中，接收单元21还用于在处理单元22根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，接收所述第一小基站发送的所述第一小基站的相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，所述H为大于或等于1的整数；
处理单元22具体用于，当所述第一小基站的所述当前平均信道质量不大于信道质量阈值，且所述第一小基站的所述当前负载不小于负载阈值时，根据所述相邻小基站标识集，获取所述H个相邻小基站的当前负载；以及根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率。
可选地，处理单元22在根据所述H个相邻小基站的当前负载，确定 所述第一小基站待使用的发射功率时，具体用于：当所述H个相邻小基站的当前负载均小于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率。
可选地，接收单元21还用于在处理单元22根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率之前，接收所述第一小基站发送的所述第一小基站的当前发射功率；
处理单元22在根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率时，具体用于：
当所述H个相邻小基站中至少一个相邻小基站的当前负载不小于所述负载阈值时，根据所述H个相邻小基站的当前负载和所述负载阈值，确定所述H个相邻小基站中当前负载不小于所述负载阈值的L个相邻小基站，1≤L<H，且所述L为整数；获取所述L个相邻小基站的当前平均信道质量和当前发射功率；以及
根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率；其中，所述第一小基站和所述L个相邻小基站待使用的发射功率使得所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值最大；所述第一小基站和所述L个相邻小基站中的其中一个小基站待使用的发射功率为第一发射功率，所述第一小基站和所述L个相邻小基站中所述除待使用的发射功率为所述第一发射功率的小基站之外的小基站待使用的发射功率为第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
可选地，处理单元22在根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率时，具体用于：
对第一小基站集合中的第二小基站使用第一发射功率，对所述第一小基站集合中除所述第二小基站之外的小基站使用第二发射功率，得到L+1个不同的功率组合，每个所述功率组合包括所述第一小基站和所述L个相邻小基站使用的发射功率；所述第一小基站集合包括所述第一小基站和所 述L个相邻小基站，所述第二小基站为所述第一小基站集合中的任一小基站；
根据所述第一小基站的当前发射功率对应所述第一小基站的当前平均信道质量，以及所述L个相邻小基站的当前发射功率对应所述L个相邻小基站的当前平均信道质量，确定所述L+1个功率组合中各个功率组合对应的所述第一小基站和所述L个相邻小基站的平均信道质量；
确定所述各个功率组合对应的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值中，最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；
将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率分别作为所述第一小基站和所述L个相邻小基站待使用的发射功率。
可选地，处理单元22在将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率作为所述第一小基站和所述L个相邻小基站待使用的发射功率之前，还用于：
当当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合与所述宏基站上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合相同时，确定所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，不小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
可选地，处理单元22还用于，将存储上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，更新为，存储所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
可选地，处理单元22还用于：
若所述当前确定的所述最大的所述第一小基站和所述L个相邻小基 站的平均信道质量的加权平均值，小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；确定第三小基站待使用的发射功率为第二发射功率，所述第三小基站为所述第一小基站集合中当前使用所述第一发射功率的小基站；
对第二小基站集合中的第四小基站使用第一发射功率，对所述第二小基站集合中的除所述第四小基站之外的小基站使用第二发射功率，得到L个不同的功率组合；所述第二小基站集包括所述第一小基站和所述L个相邻小基站中除所述第三小基站之外的所有小基站；每个所述功率组合包括所述第二小基站集合的各个小基站使用的发射功率；所述第四小基站为所述第二小基站集合中的任一小基站；
确定所述L个功率组合中各个功率组合对应的所述第二小基站集中的各个小基站的平均信道质量；
确定所述第二小基站集合中的各个小基站的平均信道质量的加权平均值中，最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值；
将所述最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值所对应的功率组合中，所述第二小基站集合的各个小基站使用的发射功率作为所述第二小基站集合中的各个小基站待使用的发射功率。
可选地，所述第二发射功率为零发射功率。
可选地，处理单元22还用于在根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，获取所述宏基站的覆盖范围内M个小基站的当前平均信道质量；所述M个小基站包括所述第一小基站和所述H个相邻小基站，所述M为大于或等于H+1的整数；以及确定所述M个小基站的当前平均信道质量的加权平均值为所述信道质量阈值。
本实施例的宏基站，可以用于执行本发明上述各方法实施例中宏基站执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图3为本发明小基站实施例二的结构示意图，如图3所示，本实施例的小基站作为第一小基站可以包括：收发器31和处理器32；其中，处理 器32，用于通过收发器31接收所述第一小基站管理的N个用户设备UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量；以及根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率。
在一种可选的实现方案中，处理器32在根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率时，具体用于：
根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载不大于负载阈值，确定所述第一小基站使待用的发射功率为第二发射功率；或者，
根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率大于第二发射功率，确定所述第一小基站待使用的发射功率为所述第二发射功率；或者，
根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于所述第二发射功率，且所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于第二发射功率，且所述当前负载不大于负载阈值，确定所述第一小基站待使用的发射功率为所述第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
在另一种可选的实现方案中，处理器32在根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率时，具体用于：通过收发器31向宏基站发送所述第一小基站的所述当前平均信道质量和所述当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；
通过收发器31接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率；
根据所述功率分配指示信息确定所述第一小基站待使用的发射功率。
可选地，每个所述测量报告还包括发送所述测量报告的所述UE测量的干扰最强的相邻小基站的标识；
处理器32，还用于在通过收发器31接收所述宏基站发送的功率分配指示信息之前，根据所述N个测量报告中的相邻小基站的标识，获取相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，1≤H≤N，且所述H为整数，所述H个相邻小基站的标识为所述N个测量报告中的相邻小基站的标识；以及通过收发器31向所述宏基站发送所述相邻小基站标识集。
可选地，处理器32在通过收发器31接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息时，具体用于：通过收发器31接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
可选地，处理器32还用于在通过收发器31接收所述宏基站发送的功率分配指示信息之前，通过收发器31向所述宏基站发送所述第一小基站的当前发射功率。
可选地，处理器32在通过收发器31接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息时，具体用于：通过收发器31接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前发射功率、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
可选地，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率为第一发射功率或者第二发射功率，所述第一发射功率大于所述第二发射功率。
可选地，所述第二发射功率为零发射功率。
可选地，处理器32，还用于调度第一UE在所述第一小基站使用所述第一发射功率时进行业务传输；所述第一UE为所述第一小基站管理的进行高负载或高数据速率业务的任一UE；和/或，
处理器32，还用于调度第二UE在所述第一小基站使用所述第二发射功率时进行业务传输；所述第二UE为所述第一小基站管理的进行低负载或低数据速率业务的任一UE。
可选地，处理器32还用于，当所述第一小基站使用所述第二发射功率时，通过收发器31向相邻小基站发送调度指示信息，所述调度指示信息用于指示所述相邻小基站调度所述相邻小基站管理的边缘UE在第一时频资源上进行业务传输；所述第一时频资源为所述第一小基站管理的中心UE进行业务传输的时频资源。
可选地，当所述第一小基站使用所述第二发射功率或所述第一发射功率时，所述第一小基站的参考信号的发射功率为所述第一小基站的当前发射功率。
可选地，处理器32还用于，当所述第一小基站的负载在预设时间内的变化率大于第一阈值，降低所述N个UE上报测量报告的时间周期；当所述第一小基站的负载在预设时间内的变化率小于第二阈值，增大所述N个UE上报测量报告的时间周期；
其中，所述第一阈值大于或等于所述第二阈值。
可选地，处理器32在根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量时，具体用于：确定所述N个测量报告中的信道质量的加权平均值为所述第一小基站的当前瞬时信道质量；以及根据所述第一小基站上一次获得的平均信道质量、所述第一小基站的当前瞬时信道质量，获得所述第一小基站所述当前平均信道质量。
本实施例的小基站，可以用于执行本发明上述各方法实施例中第一小基站执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图4为本发明宏基站实施例二的结构示意图，如图4所示，本实施例的宏基站可以包括：接收器41、处理器42和发送器43；
处理器42，用于通过接收器41接收的第一小基站发送所述第一小基站的当前平均信道质量和当前负载；所述第一小基站为所述宏基站覆盖范 围内的任一小基站；根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率；通过发送器43向所述第一小基站发送功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率。
在一种可选的实现方案中，处理器42在根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率时，具体用于：
根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载不大于负载阈值，确定所述第一小基站待使用的发射功率为第二发射功率；或者，
根据所述第一小基站的所述当前平均信道质量不大于信道质量阈值，以及所述第一小基站的所述当前负载小于负载阈值，确定所述第一小基站待使用的发射功率为第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
在另一种可选的实现方式中，处理器42还用于在根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，通过接收器41接收所述第一小基站发送的所述第一小基站的相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，所述H为大于或等于1的整数；
处理器42在根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率时，具体用于：当所述第一小基站的所述当前平均信道质量不大于信道质量阈值，且所述第一小基站的所述当前负载不小于负载阈值时，根据所述相邻小基站标识集，获取所述H个相邻小基站的当前负载；以及根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率。
可选地，处理器42在根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率时，具体用于：当所述H个相邻小基站的 当前负载均小于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率。
可选地，处理器42还用于根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率之前，通过接收器41接收所述第一小基站发送的所述第一小基站的当前发射功率；
处理器42在根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率时，具体用于：
当所述H个相邻小基站中至少一个相邻小基站的当前负载不小于所述负载阈值时，根据所述H个相邻小基站的当前负载和所述负载阈值，确定所述H个相邻小基站中当前负载不小于所述负载阈值的L个相邻小基站，1≤L<H，且所述L为整数；获取所述L个相邻小基站的当前平均信道质量和当前发射功率；以及
根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率；其中，所述第一小基站和所述L个相邻小基站待使用的发射功率使得所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值最大；所述第一小基站和所述L个相邻小基站中的其中一个小基站待使用的发射功率为第一发射功率，所述第一小基站和所述L个相邻小基站中所述除待使用的发射功率为所述第一发射功率的小基站之外的小基站待使用的发射功率为第二发射功率；
其中，所述第一发射功率大于所述第二发射功率。
可选地，处理器42在根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率时，具体用于：
对第一小基站集合中的第二小基站使用第一发射功率，对所述第一小基站集合中除所述第二小基站之外的小基站使用第二发射功率，得到L+1个不同的功率组合，每个所述功率组合包括所述第一小基站和所述L个相邻小基站使用的发射功率；所述第一小基站集合包括所述第一小基站和所述L个相邻小基站，所述第二小基站为所述第一小基站集合中的任一小基 站；
根据所述第一小基站的当前发射功率对应所述第一小基站的当前平均信道质量，以及所述L个相邻小基站的当前发射功率对应所述L个相邻小基站的当前平均信道质量，确定所述L+1个功率组合中各个功率组合对应的所述第一小基站和所述L个相邻小基站的平均信道质量；
确定所述各个功率组合对应的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值中，最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；
将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率分别作为所述第一小基站和所述L个相邻小基站待使用的发射功率。
可选地，处理器42在将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率作为所述第一小基站和所述L个相邻小基站待使用的发射功率之前，还用于：
当当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合与所述宏基站上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合相同时，确定所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，不小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
可选地，处理器42还用于，将存储上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，更新为，存储所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
可选地，处理器42还用于：若所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基 站的平均信道质量的加权平均值；确定第三小基站待使用的发射功率为第二发射功率，所述第三小基站为所述第一小基站集合中当前使用所述第一发射功率的小基站；
对第二小基站集合中的第四小基站使用第一发射功率，对所述第二小基站集合中的除所述第四小基站之外的小基站使用第二发射功率，得到L个不同的功率组合；所述第二小基站集包括所述第一小基站和所述L个相邻小基站中除所述第三小基站之外的所有小基站；每个所述功率组合包括所述第二小基站集合的各个小基站使用的发射功率；所述第四小基站为所述第二小基站集合中的任一小基站；
确定所述L个功率组合中各个功率组合对应的所述第二小基站集中的各个小基站的平均信道质量；
确定所述第二小基站集合中的各个小基站的平均信道质量的加权平均值中，最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值；
将所述最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值所对应的功率组合中，所述第二小基站集合的各个小基站使用的发射功率作为所述第二小基站集合中的各个小基站待使用的发射功率。
可选地，所述第二发射功率为零发射功率。
可选地，处理器42还用于在根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，获取所述宏基站的覆盖范围内M个小基站的当前平均信道质量；所述M个小基站包括所述第一小基站和所述H个相邻小基站，所述M为大于或等于H+1的整数；以及确定所述M个小基站的当前平均信道质量的加权平均值为所述信道质量阈值。
本实施例的宏基站，可以用于执行本发明上述各方法实施例中宏基站执行的技术方案，其实现原理和技术效果类似，此处不再赘述。
图5为本发明小基站发射功率管理方法实施例一的流程图，如图5所示，本实施例的方法可以包括：
S101、第一小基站接收所述第一小基站管理的N个UE上报的测量报 告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量。
本实施例中，第一小基站为宏基站覆盖范围内的任一小基站，第一小基站可以管理N个UE，该N个UE可以是该第一小基站管理的所有UE，表示该N个UE的服务基站为该第一小基站。该N个UE中的各个UE会向该第一小基站发送测量报告，该每个测量报告中包括发送该测量报告的UE测量的信道质量；该信道质量例如可以包括信干噪比(英文：signal-to-interference-plus-noise ratio，简称：SINR)。
S102、该第一小基站根据该N个测量报告中的信道质量，确定该第一小基站的当前平均信道质量。
本实施例中，第一小基站接收到其管理的N个UE上报的测量报告后，根据该N个测量报告中包括的信道质量，确定该第一小基站的当前平均信道质量。
可选地，在第一小基站根据该N个测量报告中的信道质量，确定该第一小基站的当前平均信道质量的一种可行的实现方式中，所述第一小基站确定该N个测量报告中的信道质量的加权平均值，获得该第一小基站的当前瞬时信道质量；然后该第一小基站根据该第一小基站上一次获得的平均信道质量、该第一小基站的当前瞬时信道质量，获得该第一小基站所述当前平均信道质量。
在第一小基站确定该N个测量报告中的信道质量的加权平均值，获得该第一小基站的当前瞬时信道质量的一种具体的实现方式中，该第一小基站对该N个测量报告中的信道质量求平均值，获取N个信道质量的平均值，确定该平均值作为该第一小基站的当前瞬时信道质量。
在该第一小基站根据该第一小基站上一次获得的平均信道质量、该第一小基站的当前瞬时信道质量，获得该第一小基站所述当前平均信道质量，的一种具体的实现方式中；该第一小基站将第一系数与该第一小基站上一次获得的平均信道质量之积，加上，第二系数与该第一小基站的当前瞬时信道质量之积，获得的值作为该第一小基站的当前平均信道质量。可选地，该第一系数与该第二系数之和为1；例如第二系数可以表示滤波器系数，由于小基站的服务用户少，而业务变化大，故第二数据可以优选为0.5。
S103、该第一小基站根据第一小基站的当前负载和当前发射功率中的至少一个，以及该当前平均信道质量，获取该第一小基站待使用的发射功率。
本实施例中，该第一小基站可以确定该第一小基站的当前负载以及该第一小基站的当前发射功率(即该第一小基站当前使用的发射功率)；该第一小基站获取该第一小基站的当前平均信道质量之后，该第一小基站可以根据该第一小基站的当前负载和当前发射功率中的至少一个，以及该当前平均信道质量，获取该第一小基站待使用的发射功率。例如：该第一小基站在第i个时隙(或子帧或帧或TTI)获取该第一小基站待使用的发射功率，该第一小基站在第i+j个时隙(或子帧或帧或TTI)使用该发射功率，j为大于或等于1的整数。
本实施例提供的小基站发射功率管理方法，通过第一小基站接收所述第一小基站管理的N个UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；并根据该N个测量报告中的信道质量，确定该第一小基站的当前平均信道质量；然后根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率；由于第一小基站待使用的发射功率是根据第一小基站的当前负载和当前发射功率中的至少一个，以及该当前平均信道质量获取的，从而减小该第一小基站对相邻小基站和宏基站的干扰，提高网络吞吐量。
可选地，在本发明实施例一的基础上，S103的具体实现方式可以存在如下所述的可行的实现方式中。
在上述S103的第一种可行的实现方式中，该第一小基站根据该当前平均信道质量大于信道质量阈值，以及该当前负载大于负载阈值，确定该第一小基站待使用的发射功率为第一发射功率。
在上述S103的第二种可行的实现方式中，该第一小基站根据该当前平均信道质量大于信道质量阈值，以及该当前负载不大于负载阈值，确定该第一小基站使待用的发射功率为第二发射功率。
在上述S103的第三种可行的实现方式中，该第一小基站根据该当前平均信道质量不大于信道质量阈值，以及该当前发射功率大于该第二发射 功率，确定该第一小基站待使用的发射功率为该第二发射功率。
在上述S103的第四种可行的实现方式中，该第一小基站根据该当前平均信道质量不大于信道质量阈值，以及当前发射功率不大于该第二发射功率，且该当前负载大于负载阈值，确定该第一小基站待使用的发射功率为该第一发射功率。
在上述S103的第五种可行的实现方式中，该第一小基站根据该当前平均信道质量不大于信道质量阈值，以及该当前发射功率不大于该第二发射功率，且该当前负载不大于负载阈值，确定该第一小基站待使用的发射功率为该第二发射功率。
其中，该第一发射功率大于该第二发射功率。可选地，第二发射功率为零发射功率。可选地，该第一发射功率为全发射功率。
图6为本发明小基站发射功率管理方法实施例二的流程图，如图6所示，本实施例的方法可以包括：
S201、第一小基站接收所述第一小基站管理的N个UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量。
S202、该第一小基站根据该N个测量报告中的信道质量，确定该第一小基站的当前平均信道质量。
本实施例中，S201与S202的具体实现过程可以参见本发明方法实施例一中的相关记载，此处不再赘述。
S203、该第一小基站确定该当前平均信道质量是否大于信道质量阈值。若否，则执行S204；若是，则执行S205。
本实施例中，该第一小基站获取该第一小基站的当前平均信道质量之后，将该当前平均信道质量与信道质量阈值进行比较，当该第一小基站确定该第一小基站的当前平均信道质量小于或等于该信道质量阈值时，该第一小基站获取该第一小基站的当前发射功率，执行S204。当该第一小基站确定该第一小基站的当前平均信道质量大于该信道质量阈值时，该第一小基站获取该第一小基站的当前负载，执行S205。
S204、该第一小基站确定当前发射功率是否大于第二发射功率。若否，则执行S205；若是，则执行S206。
本实施例中，该第一小基站在确定该第一小基站的当前平均信道质量 小于或等于信道质量阈值时，该第一小基站将该第一小基站的当前发射功率与第二发射功率进行比较，当该第一小基站确定该当前发射功率小于或等于该第二发射功率时，该第一小基站执行S205；当该第一小基站确定该当前发射功率大于该第二发射功率时，该第一小基站执行S206，即该第一小基站确定该第一小基站的待使用的发射功率为第二发射功率。
S205、该第一小基站确定当前负载是否大于负载阈值。若否，则执行S206；若是，则执行S207。
S206、该第一小基站确定该第一小基站待使用的发射功率为第二发射功率。
S207、该第一小基站确定该第一小基站待使用的发射功率为第一发射功率。
本实施例中，该第一小基站在确定该第一小基站的当前平均信道质量大于信道质量阈值时；或者，该第一小基站在确定该第一小基站的该当前平均信道质量小于或等于信道质量阈值，且该第一小基站的当前发射功率小于或等于第二发射功率时，该第一小基站将该第一小基站的当前负载与负载阈值进行比较，当该第一小基站确定该当前负载小于或等于该负载阈值时，该第一小基站执行S206，即该第一小基站确定该第一小基站的待使用的发射功率为第二发射功率；当该第一小基站确定该当前负载大于该负载阈值时，该第一小基站执行S207，即该第一小基站确定该第一小基站的待使用的发射功率为第一发射功率；其中，该第一发射功率大于第二发射功率。
本实施例提供的小基站发射功率管理方法，通过第一小基站接收所述第一小基站管理的N个UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；并根据该N个测量报告中的信道质量，确定该第一小基站的当前平均信道质量；然后根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率；由于第一小基站待使用的发射功率是根据第一小基站的当前负载和当前发射功率中的至少一个，以及该当前平均信道质量获取的，从而减小该第一小基站对相邻小基站和宏基站的干扰，提高网络吞吐量。
图7为本发明小基站发射功率管理方法实施例三的流程图，如图7所示，本实施例的方法可以包括：
S301、第一小基站接收所述第一小基站管理的N个UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量。
S302、该第一小基站根据该N个测量报告中的信道质量，确定该第一小基站的当前平均信道质量。
本实施例中，S301与S302的具体实现过程可以参见本发明方法实施例一中的相关记载，此处不再赘述。
S303、该第一小基站向宏基站发送该第一小基站的当前平均信道质量和当前负载。
本实施例中，该第一小基站为宏基站覆盖范围内的任一小基站，该第一小基站根据接收的N个测量报告获取该第一小基站的当前平均信道质量之后，向宏基站发送该第一小基站的当前平均信道质量和当前负载，例如：第一小基站可以通过X2接口向宏基站发送该第一小基站的当前平均信道质量和当前负载。
可选地，第一小基站接收的每个测量报告还包括发送该测量报告的该UE测量的干扰最强的相邻小基站的标识；该第一小基站根据该N个测量报告中的相邻小基站的标识，获取相邻小基站标识集，该相邻小基站标识集包括H个相邻小基站的标识，1≤H≤N，且该H为整数，该H个相邻小基站的标识为该N个测量报告中的相邻小基站的标识。例如：若N个测量报告中包括相邻小基站的标识均不相同，则该第一小基站获取的该相邻小基站标识集包括N个相邻小基站的标识；若N个测量报告中存在相邻小基站的标识相同的测量报告时，则该第一小基站获取的该相邻小基站标识集包括小于N个相邻小基站的标识。该第一小基站获取到相邻小基站标识集后，向该宏基站发送该相邻小基站标识集。可选地，该第一小基站通过X2接口向该宏基站发送该相邻小基站标识集。
可选地，该第一小基站还向该宏基站发送该第一小基站的当前发射功率；可选地，该第一小基站通过X2接口向该宏基站发送该第一小基站的当前发射功率。
可选地，该第一小基站通过同一X2接口信令向宏基站发送该第一小 基站的当前平均信道质量、当前发射功率、当前负载和相邻小基站标识集。
S304、该第一小基站接收该宏基站根据该第一小基站的该当前平均信道质量和该当前负载发送的功率分配指示信息，该功率分配指示信息用于指示该第一小基站待使用的发射功率。
S305、该第一小基站根据该功率分配指示信息确定该第一小基站待使用的发射功率。
本实施例中，该第一小基站接收该宏基站根据该第一小基站的该当前平均信道质量和该当前负载发送的功率分配指示信息，该功率分配指示信息用于指示该第一小基站待使用的发射功率。该第一小基站接收到该宏基站发送的功率分配指示信息，可以确定该功率分配指示信息获取该第一小基站待使用的发射功率。该功率分配指示信息用于指示该第一小基站待使用的发射功率为第一发射功率或者第二发射功率，该第一发射功率大于第二发射功率。可选地，该第二发射功率为零发射功率。
可选地，若该第一小基站还向该宏基站发送该第一小基站的相邻小基站标识集，则该第一小基站接收的功率分配指示信息可以是该宏基站根据该第一小基站的该当前平均信道质量、该当前负载以及该相邻小基站标识集发送的功率分配指示信息。
可选地，若该第一小基站还向该宏基站发送该第一小基站的当前发射功率，则该第一小基站接收的功率分配指示信息可以是该宏基站根据该第一小基站的该当前平均信道质量、该当前发射功率、该当前负载以及该相邻小基站标识集发送的功率分配指示信息。
本实施例提供的小基站发射功率管理方法，通过第一小基站接收所述第一小基站管理的N个UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；并根据该N个测量报告中的信道质量，确定该第一小基站的当前平均信道质量；然后向宏基站发送该第一小基站的当前负载和当前平均信道质量，接收宏基站发送的功率分配指示信息，根据功率分配指示信息获取所述第一小基站待使用的发射功率；由于第一小基站待使用的发射功率是根据第一小基站的当前负载和当前平均信道质量获取的，从而减小该第一小基站对相邻小基站和宏基站的干扰，提高网络吞吐量。
图8为本发明小基站发射功率管理方法实施例四的流程图，如图8所示，本实施例的方法可以包括：
S401、宏基站接收第一小基站发送的所述第一小基站的当前平均信道质量和当前负载。
本实施例中，宏基站的覆盖范围内的小基站均会向该宏基站发送该小基站的当前平均信道质量和当前负载，在此以该宏基站覆盖范围内的任一个小基站为例，该任一个小基站称为第一小基站。该宏基站接收第一小基站发送的该第一小基站的当前平均信道质量和当前负载；该第一小基站向该宏基站发送第一小基站的当前平均信道质量和当前负载的具体实现过程可以参见本发明方法实施例三中的相关记载，此处不再赘述。
S402、该宏基站根据该第一小基站的该当前平均信道质量和该当前负载，确定该第一小基站待使用的发射功率。
S403、该宏基站向该第一小基站发送功率分配指示信息，该功率分配指示信息用于指示该第一小基站待使用的发射功率。
本实施例中，该宏基站接收到该第一小基站发送的该第一小基站的当前平均信道质量和该当前负载之后，可以根据该第一小基站的该当前平均信道质量和该当前负载，确定该第一小基站待使用的发射功率。然后，该宏基站向该第一小基站发送功率分配指示信息，该功率分配指示信息用于指示该第一小基站待使用的发射功率。第一小基站接收到该功率分配指示信息之后，根据该功率分配指示信息确定该第一小基站待使用的发射功率。
本实施例提供的小基站发射功率管理方法，通过宏基站接收第一小基站发送所述第一小基站的当前平均信道质量和当前负载；根据该第一小基站的该当前平均信道质量和该当前负载，确定该第一小基站待使用的发射功率；向该第一小基站发送功率分配指示信息，该功率分配指示信息用于指示该第一小基站待使用的发射功率，以使该第一小基站根据功率分配指示信息确定待使用的发射功率。由于第一小基站待使用的发射功率是根据第一小基站的当前负载和当前平均信道质量获取的，从而减小该第一小基站对相邻小基站和宏基站的干扰，提高网络吞吐量。
在本发明方法实施例四的基础上，可选地，宏基站执行S402存在如 下所述的可行的实现方式。
在S402的第一种可行的实现方式中，该宏基站根据该第一小基站的当前平均信道质量大于信道质量阈值，以及该第一小基站的当前负载大于负载阈值，确定该第一小基站待使用的发射功率为第一发射功率。相应地，宏基站向该第一小基站发送的功率分配指示信息用于指示该第一小基站待使用的发射功率为第一发射功率。
在S402的第二种可行的实现方式中，该宏基站根据该第一小基站的当前平均信道质量大于信道质量阈值，以及该第一小基站的当前负载不大于负载阈值，确定该第一小基站待使用的发射功率为第二发射功率。相应地，宏基站向该第一小基站发送的功率分配指示信息用于指示该第一小基站待使用的发射功率为第二发射功率。
在S402的第三种可行的实现方式中，该宏基站根据该第一小基站的当前平均信道质量不大于信道质量阈值，以及该第一小基站的该当前负载不大于负载阈值，确定该第一小基站待使用的发射功率为第二发射功率。相应地，宏基站向该第一小基站发送的功率分配指示信息用于指示该第一小基站待使用的发射功率为第二发射功率。
可选地，该宏基站在执行S402之前，还可以接收该第一小基站发送的相邻小基站标识集，该相邻小基站标识集包括H个相邻小基站的标识，其中，该第一小基站向该宏基站发送该相邻小基站标识集的具体实现过程可以参见本发明方法实施例三中的相关记载，此处不再赘述。当该宏基站还接收到该第一小基站发送的相邻小基站标识集后，在该宏基站执行S402的第四种可行的实现方式中，该宏基站根据该第一小基站的当前平均信道质量、当前负载和相邻小基站标识集，确定该第一小基站待使用的发射功率。
其中，在该宏基站根据该第一小基站的当前平均信道质量、当前负载和相邻小基站标识集，确定该第一小基站待使用的发射功率的可选的实现方案中；当该第一小基站的该当前平均信道质量不大于信道质量阈值，且该第一小基站的该当前负载大于负载阈值时，该宏基站根据该相邻小基站标识集，获取该H个相邻小基站的当前负载；然后该宏基站根据该H个相邻小基站的当前负载，确定该第一小基站待使用的发射功率。
其中，该宏基站根据该H个相邻小基站的当前负载，确定该第一小基站待使用的发射功率存在如下所述的可选的实现方案，
在第一种可选的实现方案中，当该H个相邻小基站的当前负载均小于负载阈值，该宏基站确定该第一小基站待使用的发射功率为第一发射功率。
在第二种可选的实现方式中，可选地，该宏基站在根据该H个相邻小基站的当前负载，确定该第一小基站待使用的发射功率之前，还可以接收该第一小基站发送的当前发射功率，其中，该第一小基站向该宏基站发送该第一小基站的当前发射功率的具体实现过程可以参见本发明方法实施例三中的相关记载，此处不再赘述。当所述H个相邻小基站中至少一个相邻小基站的当前负载不小于所述负载阈值时，所述宏基站根据所述H个相邻小基站的当前负载和所述负载阈值，确定所述H个相邻小基站中当前负载不小于所述负载阈值的L个相邻小基站，1≤L<H，且所述L为整数；该宏基站获取该L个相邻小基站的当前平均信道质量和当前发射功率；该宏基站根据该第一小基站和该L个相邻小基站的当前平均信道质量和当前发射功率，确定该第一小基站和该L个相邻小基站待使用的发射功率，其中，该第一小基站和该L个相邻小基站待使用的发射功率使得该第一小基站和该L个相邻小基站的平均信道质量之和最大；该第一小基站和该L个相邻小基站中的其中一个小基站待使用的发射功率为第一发射功率，该第一小基站和该L个相邻小基站中除待使用的发射功率为该第一发射功率的小基站之外的小基站待使用的发射功率为第二发射功率。
图9为本发明小基站发射功率管理方法实施例五的流程图，如图9所示，本实施例的方法可以包括：
S501、宏基站接收第一小基站发送的该第一小基站的当前平均信道质量、当前发射功率、当前负载和相邻小基站标识集。
本实施例中，第一小基站为宏基站覆盖范围内的任一小基站。该第一小基站接收该第一小基站管理的N个UE上报的测量报告，每个该测量报告中包括发送该测量报告的UE测量的信道质量和干扰最强的相邻小基站的标识。该第一小基站根据该N个测量报告中的信道质量获取该第一小基站的当前平均信道质量，该第一小基站根据该N个测量报告中相邻小基站 的标识获取该第一小基站的相邻小基站标识集，该相邻小基站标识集包括H个相邻小基站的标识，1≤H≤N，且所述H为整数。然后该第一小基站向宏基站发送该第一小基站的当前平均信道质量、当前发射功率、当前负载和相邻小基站标识集。
S502、该宏基站确定该第一小基站的当前平均信道质量是否大于信道质量阈值。若是，则执行S503，若否，则执行S504。
本实施例中，该宏基站将第一小基站的当前平均信道质量与信道质量阈值进行比较，当该宏基站确定该当前平均信道质量大于信道质量阈值时，该宏基站执行S503。当该宏基站确定该当前平均信道质量小于或等于信道质量阈值时，该宏基站执行S504。
S503、该宏基站确定该第一小基站的当前负载是否大于负载阈值。若否，则执行S505，若是，则执行S508。
本实施例中，该宏基站确定该第一小基站的当前平均信道质量大于信道质量阈值之后，该宏基站将该第一小基站的当前负载与负载阈值进行比较。当该宏基站确定该第一小基站的当前负载小于或等于负载阈值时，该宏基站执行S505，即该宏基站确定该第一小基站待使用的发射功率为第二发射功率。当该宏基站确定该第一小基站的当前负载大于负载阈值时，该宏基站执行S508，即该宏基站确定该第一小基站待使用的发射功率为第一发射功率。
S504、该宏基站确定该第一小基站的当前负载是否小于负载阈值。若是，则执行S505，若否，则执行S506。
本实施例中，该宏基站确定该第一小基站的当前平均信道质量小于或等于信道质量阈值之后，该宏基站将该第一小基站的当前负载与负载阈值进行比较。当该宏基站确定该第一小基站的当前负载小于负载阈值时，该宏基站执行S505，即该宏基站确定该第一小基站待使用的发射功率为第二发射功率；当该宏基站确定该第一小基站的当前负载大于或等于负载阈值时，该宏基站执行S506。
S505、该宏基站确定该第一小基站待使用的发射功率为第二发射功率。
本实施例中，该宏基站确定该第一小基站待使用的发射功率为第二发 射功率之后，该宏基站向该第一小基站发送功率分配指示信息，该功率分配指示信息指示该第一小基站待使用的发射功率为第二发射功率(图9中未示出)。
S506、该宏基站根据该第一小基站的相邻小基站标识集，获取H个相邻小基站的当前负载。
S507、该宏基站确定该H个相邻小基站的当前负载是否均小于负载阈值。若是，则执行S508；若否，则执行S509。
本实施例中，该宏基站在执行S504时确定该第一小基站的负载大于或等于负载阈值时，该宏基站根据第一小基站发送的相邻小基站标识集中的H个相邻小基站的标识，获取该N个相邻小基站的当前负载。该N个相邻小基站的当前负载可以是该N个相邻小基站上报给该宏基站的。
该宏基站获取到该N个相邻小基站的当前负载之后，该宏基站将该N个相邻小基站的当前负载分别与负载阈值进行比较。当该宏基站确定该N个相邻小基站的当前负载均小于该负载阈值时，该宏基站执行S508，即该宏基站确定该第一小基站待使用的发射功率为第一发射功率。当该宏基站确定该N个相邻小基站的当前负载不是均小于该负载阈值时，该宏基站执行S509-S511。
S508、该宏基站确定该第一小基站待使用的发射功率为第一发射功率。
本实施例中，该宏基站确定该第一小基站待使用的发射功率为第一发射功率之后，该宏基站向该第一小基站发送功率分配指示信息，该功率分配指示信息指示该第一小基站待使用的发射功率为第一发射功率(图9中未示出)。
S509、该宏基站确定该H个相邻小基站中当前负载不小于该负载阈值的L个相邻小基站。
本实施例中，该宏基站将该H个相邻小基站的当前负载与负载阈值进行比较，确定该H个相邻小基站中至少一个相邻小基站的当前负载小于或等于该负载阈值时，该宏基站可以从该H个相邻小基站中确定当前负载小于该负载阈值的L个相邻小基站，1≤L<H，且该L为整数。
S510、该宏基站获取该L个相邻小基站的当前平均信道质量和当前发 射功率。
本实施例中，该宏基站从H个相邻小基站中确定当前负载小于或等于该负载阈值的L个相邻小基站，然后该宏基站获取该L个相邻小基站的当前平均信道质量和当前发射功率。该L个相邻小基站的当前平均信道质量可以是该L个相邻小基站上报给该宏基站的。
S511、该宏基站根据该第一小基站的当前平均信道质量和当前发射功率，以及该L个相邻小基站的当前平均信道质量和当前发射功率，确定该第一小基站和该L个相邻小基站待使用的发射功率。
本实施例中，该第一小基站的当前发射功率和该L个相邻小基站的当前发射功率可以是该宏基站通过上一次通过功率分配信息配置给第一小基站和该L个相邻小基站的，因此该宏基站可以获取该第一小基站和该L个相邻小基站的当前发射功率。然后该宏基站根据该第一小基站的当前平均信道质量和当前发射功率、该L个相邻小基站的当前平均信道质量和当前发射功率，确定该第一小基站和该L个相邻小基站待使用的发射功率。其中，该宏基站确定的该第一小基站和该L个相邻小基站待使用的发射功率使得该第一小基站和该L个相邻小基站的平均信道质量的加权平均值最大；该第一小基站和该L个相邻小基站中的其中一个小基站待使用的发射功率为第一发射功率，该第一小基站和该L个相邻小基站中除待使用的发射功率为该第一发射功率的小基站之外的小基站待使用的发射功率为第二发射功率。待使用的发射功率为第一发射功率的小基站可以是第一小基站也可以是该L个相邻小基站中的任一个小基站。
本实施例中，该宏基站执行完S511之后，该宏基站向该第一小基站和该L个相邻小基站分别发送功率分配指示信息，功率分配指示信息用于指示接收该功率分配指示信息的小基站待使用的发射功率。
本实施例提供的小基站发射功率管理方法，通过上述方式，宏基站可以控制不同小基站的发射功率以一定概率分布方式在第一发射功率和第二发射功率间动态切换；也可以使得相邻小基站间的发射功率在同一TTI内错落有致，减小系统干扰；对于同一小基站而言，在一段时间周期内一部分概率时间使用第一发射功率以获得较好的信道质量，保证网络容量，而另一部分概率时间使用第二发射功率，以减小对相邻小基站的干扰。
其中，宏基站覆盖范围内的所有小基站都有一部分时间使用第一发射功率而获得较好的信道质量，从而用户获得较好的信干噪比，进行高数据速率通信，而宏基站覆盖范围内的所有小基站也有一部分时间使用第二发射功率，以减小对相邻小基站的干扰；同时相邻小基站在第一发射功率与第二发射功率间交替切换，同一传输时间间隔内相邻小基站间发射功率错落有致，从而有效地减小系统内的干扰。例如以三个相邻的小基站(小基站1、小基站2、小基站3)为例，小基站1使用第一发射功率时，小基站2和小基站3均使用第二发射功率；小基站2使用第一发射功率时，小基站1和小基站3均使用第二发射功率；小基站3使用第一发射功率时，小基站1和小基站2均使用第二发射功率。
在本发明上述各方法实施例的基础上，可选地，该宏基站根据该第一小基站的该当前平均信道质量和该当前负载，确定该第一小基站待使用的发射功率之前，还可以获取信道质量阈值。在该宏基站获取信道质量阈值的一种可行的实现方式中，该宏基站获取该宏基站的覆盖范围内M个小基站的当前平均信道质量；该M个小基站包括该第一小基站和该H个相邻小基站，该M为大于或等于H+1的整数；然后该宏基站确定该M个小基站的当前平均信道质量的加权平均值为该信道质量阈值。
图10为本发明小基站发射功率管理方法实施例六的流程图，如图10所示，本实施例的方法对图9中的S511的一种可行的实现方式进行详细说明，图10中省略了S501-S510，详细可以参见本发明方法实施例五中的记载。本实施例中的S511可以包括：
S601、该宏基站对第一小基站集合中的第二小基站使用第一发射功率，对所述第一小基站集合中除所述第二小基站之外的小基站使用第二发射功率，得到L+1个不同的功率组合。
本实施例中，第一小基站集合包括第一小基站和上述的L个相邻小基站，即该第一小基站集合包括L+1个小基站。该宏基站对该第一小基站集合中的任一小基站使用第一发射功率，对该第一小基站集合中除使用第一发射功率的该小基站之外的其它小基站使用第二发射功率，可以得到L+1个不同的功率组合，每个功率组合包括该第一小基站和L个相邻小基站使用的发射功率。例如：第一小基站称为小基站1，L为3，该第一小基站 的这3个相邻小基站分别称为小基站2、小基站3、小基站4；小基站1使用第一发射功率、小基站2使用第二发射功率、小基站3使用第二发射功率、小基站4使用第二发射功率，这称为第一种功率组合；小基站1使用第二发射功率、小基站2使用第一发射功率、小基站3使用第二发射功率、小基站4使用第二发射功率，这称为第二种功率组合；小基站1使用第二发射功率、小基站2使用第二发射功率、小基站3使用第一发射功率、小基站4使用第二发射功率，这称为第三种功率组合；小基站1使用第二发射功率、小基站2使用第二发射功率、小基站3使用第三发射功率、小基站4使用第一发射功率，这称为第四种功率组合；因此，宏基站可以获得四种不同的功率组合。
S602、该宏基站根据该第一小基站的当前发射功率对应该第一小基站的当前平均信道质量，以及该L个相邻小基站的当前发射功率对应该L个相邻小基站的当前平均信道质量，确定该L+1个功率组合中各个功率组合对应的该第一小基站和该L个相邻小基站的平均信道质量。
本实施例中，该宏基站可以第一小基站的当前发射功率、以及该第一小基站的当前平均信道质量，可以确定该第一小基站的发射功率与平均信道质量之间的关系，然后该宏基站可以根据该发射功率与平均信道质量之间的关系，确定该第一小基站的发射功率为第一发射功率时对应的平均信道质量，以及该第一小基站的发射功率为第二发射功率时对应的平均信道质量；相应地，采用上述类似方式，该宏基站可以根据L个相邻小基站中各个相邻小基站的发射功率与平均信道质量之间的关系，确定各个相邻小基站的发射功率为第一发射功率时对应的平均信道质量，以及确定各个相邻小基站的发射功率为第二发射功率时对应的平均信道质量。因此，宏基站可以确定各个功率组合对应的第一小基站和该L个相邻小基站的平均信道质量。
S603、该宏基站确定各个功率组合对应的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值中，最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值。
本实施例中，该宏基站确定各个功率组合对应的第一小基站和该L个相邻小基站的平均信道质量之后，可以获取每个功率组合对应的第一小基 站和该L个相邻小基站的平均信道质量的加权平均值，从而可以获得L+1个加权平均值；再将这L+1个加权平均值进行比较，确定其中最大的加权平均值。
例如：宏基站可以确定在上述第一种功率组合对应的：小基站1的平均信道质量(与第一发射功率对应)、小基站2的平均信道质量(与第二发射功率对应)、小基站3的平均信道质量(与第二发射功率对应)、小基站4的平均信道质量(与第二发射功率对应)，然后求小基站1、小基站2、小基站3、小基站4的平均信道质量的加权平均值，获得加权平均值1。
宏基站可以确定在上述第二种功率组合对应的：小基站1的平均信道质量(与第二发射功率对应)、小基站2的平均信道质量(与第一发射功率对应)、小基站3的平均信道质量(与第二发射功率对应)、小基站4的平均信道质量(与第二发射功率对应)，然后求小基站1、小基站2、小基站3、小基站4的平均信道质量的加权平均值，获得加权平均值2。
宏基站可以确定在上述第三种功率组合对应的：小基站1的平均信道质量(与第二发射功率对应)、小基站2的平均信道质量(与第二发射功率对应)、小基站3的平均信道质量(与第一发射功率对应)、小基站4的平均信道质量(与第二发射功率对应)，然后求小基站1、小基站2、小基站3、小基站4的平均信道质量的加权平均值，获得加权平均值3。
宏基站可以确定在上述第四种功率组合对应的：小基站1的平均信道质量(与第二发射功率对应)、小基站2的平均信道质量(与第二发射功率对应)、小基站3的平均信道质量(与第二发射功率对应)、小基站4的平均信道质量(与第一发射功率对应)，然后求小基站1、小基站2、小基站3、小基站4的平均信道质量的加权平均值，获得加权平均值4。
然后将加权平均值1、2、3、4进行比较，确定其中最大的值。
S604、该宏基站将该最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，该第一小基站和该L个相邻小基站使用的发射功率分别作为该第一小基站和该L个相邻小基站待使用的发射功率。
本实施例中，该宏基站确定了L+1个加权平均值中最大的加权平均值 之后，可以确定用于得到该最大的加权平均值的功率组合，从而可以确定该功率组合中第一小基站使用的发射功率为该第一小基站待使用的发射功率，该功率组合L个相邻小基站使用的发射功率为该L个相邻小基站待使用的发射功率。
例如：若加权平均值1、2、3、4中的加权平均值2最大，则宏基站可以确定小基站1待使用的发射功率为第二发射功率，小基站2待使用的发射功率为第一发射功率，小基站3待使用的发射功率为第二发射功率，小基站4待使用的发射功率为第二发射功率。
本实施例提供的小基站发射功率管理方法，使得第一小基站与L个相邻小基站中只有一个小基站使用第一发射功率，其它小基站使用第二发射功率，而且第一小基站和L个相邻小基站的平均信道质量的加权平均值最大。从而减小该第一小基站对相邻小基站和宏基站的干扰，提高网络吞吐量。
图11为本发明小基站发射功率管理方法实施例七的流程图，如图11所示，本实施例的方法对图9中的S511的一种可行的实现方式进行详细说明，图11中省略了S501-S510，详细可以参见本发明方法实施例五中的记载。本实施例中的S511可以包括：
S701、该宏基站对第一小基站集合中的第二小基站使用第一发射功率，对所述第一小基站集合中除所述第二小基站之外的小基站使用第二发射功率，得到L+1个不同的功率组合。
S702、该宏基站根据该第一小基站的当前发射功率对应该第一小基站的当前平均信道质量，以及该L个相邻小基站的当前发射功率对应该L个相邻小基站的当前平均信道质量，确定该L+1个功率组合中各个功率组合对应的该第一小基站和该L个相邻小基站的平均信道质量。
S703、该宏基站确定各个功率组合对应的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值中，最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值。
本实施例中，S701-S703的具体实现过程可以参见本发明方法实施例六中的相关记载。
S704、该宏基站确定当前确定的最大的加权平均值是否小于该宏基站 存储的上一次确定的最大的加权平均值。若否，则执行S705，若是，则执行S707。
本实施例中，若宏基站上一次确定第一小基站待使用的发射功率时不是根据最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值所对应的功率组合来确定的，则该宏基站将当前确定的最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中该第一小基站和该L个相邻小基站使用的发射功率分别作为该第一小基站和该L个相邻小基站待使用的发射功率。
若宏基站上一次确定第一小基站待使用的发射功率时是根据最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值所对应的功率组合来确定的；则该宏基站将当前确定的最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值(即S703中确定的最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值)所对应的功率组合，与，宏基站上一次确定的最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值所对应的功率组合进行比较。若这两个功率组合不相同，则该宏基站将当前确定的最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中该第一小基站和该L个相邻小基站使用的发射功率分别作为该第一小基站和该L个相邻小基站待使用的发射功率。若这两个功率组合相同，则该宏基站确定该当前确定的所述最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值，是否小于，该宏基站存储的上一次确定的最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值；若否，则执行S705，若是，则执行S707。
S705、该宏基站将该当前确定的最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中该第一小基站和该L个相邻小基站使用的发射功率分别作为该第一小基站和该L个相邻小基站待使用的发射功率。
S706、该宏基站将存储上一次确定的最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值，更新为，存储该当前确定的该最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值。
本实施例中，该宏基站将上一次确定的最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值更新为当前确定的该最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值；以备该宏基站将该存储的值与下一次确定的最大的该第一小基站和该L个相邻小基站的平均信道质量的加权平均值进行比较。
S707、该宏基站确定第三小基站待使用的发射功率为第二发射功率，该第三小基站为所述第一小基站集合中当前使用所述第一发射功率的小基站。
本实施例中，该宏基站确定当前确定的最大的第一小基站和L个相邻小基站的平均信道质量的加权平均值，小于，宏基站存储的上一次确定的最大的第一小基站和L个相邻小基站的平均信道质量的加权平均值时，该宏基站可以第一小基站集合中确定当前使用第一发射功率的小基站，该当前使用第一发射功率的小基站称为第三小基站。该宏基站确定该第三小基站待使用的发射功率为第二发射功率。
S708、该宏基站对第二小基站集合中的第四小基站使用第一发射功率，对该第二小基站集合中的除该第四小基站之外的小基站使用第二发射功率，得到L个不同的功率组合。
本实施例中，该第二小基站集合包括该第一小基站和该L个相邻小基站集中除上述第三小基站之外的所有小基站。S708中的每个功率组合包括该第一小基站和该L个相邻小基站中除所述第三小基站之外的小基站使用的发射功率；该第四小基站为该第二小基站集合中的任一小基站。
S709、该宏基站确定该L个功率组合中各个功率组合对应的该第二小基站集中的各个小基站的平均信道质量。
S710、该宏基站确定该第二小基站集合中的各个小基站的平均信道质量的加权平均值中，最大的第二小基站集合中的各个小基站的平均信道质量的加权平均值。
S711、该宏基站将最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值所对应的功率组合中该第二小基站集合的各个小基站使用的发射功率作为第二小基站集合的各个小基站待使用的发射功率。
本实施例中，S708-S711的具体实现过程与本发明方法实施例六中S601-S604的具体实现过程类似，此处不再赘述。
本实施例中的宏基站在执行完S711后可以确定该第一小基站和该L个相邻小基站待使用的发射功率。
本实施例中，通过上述方式使得相邻小基站间保持只有一个小基站采用第一发射功率工作，可以保证该小基站的吞吐量，而采用第二发射功率工作的小基站可以减小其对相邻小基站的干扰而提升系统的性能。
可选地，第一小基站通过本发明上述各方法实施例确定该第一小基站待使用的发射功率之后，还可以包括以下至少一种可行的实现方案。
第一种可行的实现方案中，所述第一小基站调度第一UE在所述第一小基站使用所述第一发射功率时进行业务传输；所述第一UE为所述第一小基站管理的进行高负载或高数据速率业务的任一UE；和/或，
所述第一小基站调度第二UE在所述第一小基站使用所述第二发射功率时进行业务传输；所述第二UE为所述第一小基站管理的进行低负载或低数据速率业务的任一UE。
第二种可行的实现方案中，当所述第一小基站使用所述第二发射功率时，所述第一小基站向相邻小基站发送调度指示信息，所述调度指示信息用于指示所述相邻小基站调度所述相邻小基站管理的边缘UE在第一时频资源上进行业务传输；所述第一时频资源为所述第一小基站管理的中心UE进行业务传输的时频资源。其中，边缘UE是指物理位置处于其服务小基站的覆盖区域的边缘的UE，中心UE是指物理位置处于其服务小基站的覆盖区域的中心的UE。
在第三种可行的实现方案中，当所述第一小基站使用所述第二发射功率或所述第一发射功率时，所述第一小基站的参考信号的发射功率为所述第一小基站的当前发射功率。
在第四种可行的实现方式中，当所述第一小基站的负载在预设时间内的变化率大于第一阈值，所述第一小基站降低所述N个UE上报测量报告的时间周期；当所述第一小基站的负载在预设时间内的变化率小于第二阈值，所述第一小基站降低所述N个UE上报测量报告的时间周期；其中，所述第一阈值大于或等于所述第二阈值。
图12为本发明小基站发射功率管理系统实施例一的结构示意图，如图12所示，本实施例的系统包括宏基站10和至少一个小基站20；其中，图12中仅示出了一个小基站20，但并不限于只包括一个小基站20；其中，宏基站10可以采用图2或图4任一装置实施例的结构，其对应地，可以执行本发明上述各方法实施例中宏基站执行的方案，其实现原理和技术效果类似，此处不再赘述。小基站20可以采用图1或图3任一装置实施例的结构，其对应地，可以执行本发明上述各方法实施例中第一小基站执行的方案，其实现原理和技术效果类似，此处不再赘述。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机可读取存储介质中，该程序在执行时，执行包括上述方法实施例的步骤；而前述的存储介质包括：只读内存(英文：Read-Only Memory，简称：ROM)、随机存取存储器(英文：Random Access Memory，简称：RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (51)

  1. 一种小基站，作为第一小基站，其特征在于，包括：
    收发单元，用于接收所述第一小基站管理的N个用户设备UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；
    处理单元，用于根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量；以及根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率。
  2. 根据权利要求1所述的小基站，其特征在于，所述处理单元在根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率时，具体用于：
    根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
    根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载不大于负载阈值，确定所述第一小基站使待用的发射功率为第二发射功率；或者，
    根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率大于第二发射功率，确定所述第一小基站待使用的发射功率为所述第二发射功率；或者，
    根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于所述第二发射功率，且所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
    根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于第二发射功率，且所述当前负载不大于负载阈值，确定所述第一小基站待使用的发射功率为所述第二发射功率；
    其中，所述第一发射功率大于所述第二发射功率。
  3. 根据权利要求1所述的小基站，其特征在于，
    所述处理单元在根据所述第一小基站的当前负载和当前发射功率中 的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率时，具体用于：向宏基站发送所述第一小基站的所述当前平均信道质量和所述当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；
    接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率；
    根据所述功率分配指示信息确定所述第一小基站待使用的发射功率。
  4. 根据权利要求3所述的小基站，其特征在于，每个所述测量报告还包括发送所述测量报告的所述UE测量的干扰最强的相邻小基站的标识；
    所述处理单元还用于在接收所述宏基站发送的功率分配指示信息之前，根据所述N个测量报告中的相邻小基站的标识，获取相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，1≤H≤N，且所述H为整数，所述H个相邻小基站的标识为所述N个测量报告中的相邻小基站的标识；以及向所述宏基站发送所述相邻小基站标识集。
  5. 根据权利要求4所述的小基站，其特征在于，所述处理单元在接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息时，具体用于：接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
  6. 根据权利要求5所述的小基站，其特征在于，所述处理单元还用于在接收所述宏基站发送的功率分配指示信息之前，向所述宏基站发送所述第一小基站的当前发射功率。
  7. 根据权利要求6所述的小基站，其特征在于，所述处理单元在接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息时，具体用于：接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前发射功率、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
  8. 根据权利要求3-7任意一项所述的小基站，其特征在于，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率为第一发射功率或者第二发射功率，所述第一发射功率大于所述第二发射功率。
  9. 根据权利要求2或8所述的小基站，其特征在于，所述第二发射功率为零发射功率。
  10. 根据权利要求2或8或9所述的小基站，其特征在于，所述处理单元，还用于调度第一UE在所述第一小基站使用所述第一发射功率时进行业务传输；所述第一UE为所述第一小基站管理的进行高负载或高数据速率业务的任一UE；和/或，
    所述处理单元，还用于调度第二UE在所述第一小基站使用所述第二发射功率时进行业务传输；所述第二UE为所述第一小基站管理的进行低负载或低数据速率业务的任一UE。
  11. 根据权利要求2或8-10任意一项所述的小基站，其特征在于，所述收发单元，还用于当所述第一小基站使用所述第二发射功率时，向相邻小基站发送调度指示信息，所述调度指示信息用于指示所述相邻小基站调度所述相邻小基站管理的边缘UE在第一时频资源上进行业务传输；所述第一时频资源为所述第一小基站管理的中心UE进行业务传输的时频资源。
  12. 根据权利要求2或8-11任意一项所述的小基站，其特征在于，当所述第一小基站使用所述第二发射功率或所述第一发射功率时，所述第一小基站的参考信号的发射功率为所述第一小基站的当前发射功率。
  13. 根据权利要求1-12任意一项所述的小基站，其特征在于，所述处理单元还用于，当所述第一小基站的负载在预设时间内的变化率大于第一阈值，降低所述N个UE上报测量报告的时间周期；当所述第一小基站的负载在预设时间内的变化率小于第二阈值，增大所述N个UE上报测量报告的时间周期；
    其中，所述第一阈值大于或等于所述第二阈值。
  14. 根据权利要求1-13任意一项所述的小基站，其特征在于，所述处理单元在根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量时，具体用于：确定所述N个测量报告中的信道质量的加 权平均值为所述第一小基站的当前瞬时信道质量；以及根据所述第一小基站上一次获得的平均信道质量、所述第一小基站的当前瞬时信道质量，获得所述第一小基站所述当前平均信道质量。
  15. 一种宏基站，其特征在于，包括：
    接收单元，用于接收第一小基站发送的所述第一小基站的当前平均信道质量和当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；
    处理单元，用于根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率；
    发送单元，用于向所述第一小基站发送功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率。
  16. 根据权利要求15所述的宏基站，其特征在于，所述处理单元具体用于，根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
    根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载不大于负载阈值，确定所述第一小基站待使用的发射功率为第二发射功率；或者，
    根据所述第一小基站的所述当前平均信道质量不大于信道质量阈值，以及所述第一小基站的所述当前负载小于负载阈值，确定所述第一小基站待使用的发射功率为第二发射功率；
    其中，所述第一发射功率大于所述第二发射功率。
  17. 根据权利要求15所述的宏基站，其特征在于，所述接收单元还用于在所述处理单元根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，接收所述第一小基站发送的所述第一小基站的相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，所述H为大于或等于1的整数；
    所述处理单元具体用于，当所述第一小基站的所述当前平均信道质量不大于信道质量阈值，且所述第一小基站的所述当前负载不小于负载阈值时，根据所述相邻小基站标识集，获取所述H个相邻小基站的当前负载； 以及根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率。
  18. 根据权利要求17所述的宏基站，其特征在于，所述处理单元在根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率时，具体用于：当所述H个相邻小基站的当前负载均小于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率。
  19. 根据权利要求17所述的宏基站，其特征在于，所述接收单元还用于在所述处理单元根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率之前，接收所述第一小基站发送的所述第一小基站的当前发射功率；
    所述处理单元在根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率时，具体用于：
    当所述H个相邻小基站中至少一个相邻小基站的当前负载不小于所述负载阈值时，根据所述H个相邻小基站的当前负载和所述负载阈值，确定所述H个相邻小基站中当前负载不小于所述负载阈值的L个相邻小基站，1≤L<H，且所述L为整数；获取所述L个相邻小基站的当前平均信道质量和当前发射功率；以及
    根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率；其中，所述第一小基站和所述L个相邻小基站待使用的发射功率使得所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值最大；所述第一小基站和所述L个相邻小基站中的其中一个小基站待使用的发射功率为第一发射功率，所述第一小基站和所述L个相邻小基站中所述除待使用的发射功率为所述第一发射功率的小基站之外的小基站待使用的发射功率为第二发射功率；
    其中，所述第一发射功率大于所述第二发射功率。
  20. 根据权利要求19所述的宏基站，其特征在于，所述处理单元在根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率时，具体用于：
    对第一小基站集合中的第二小基站使用第一发射功率，对所述第一小基站集合中除所述第二小基站之外的小基站使用第二发射功率，得到L+1个不同的功率组合，每个所述功率组合包括所述第一小基站和所述L个相邻小基站使用的发射功率；所述第一小基站集合包括所述第一小基站和所述L个相邻小基站，所述第二小基站为所述第一小基站集合中的任一小基站；
    根据所述第一小基站的当前发射功率对应所述第一小基站的当前平均信道质量，以及所述L个相邻小基站的当前发射功率对应所述L个相邻小基站的当前平均信道质量，确定所述L+1个功率组合中各个功率组合对应的所述第一小基站和所述L个相邻小基站的平均信道质量；
    确定所述各个功率组合对应的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值中，最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；
    将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率分别作为所述第一小基站和所述L个相邻小基站待使用的发射功率。
  21. 根据权利要求20所述的宏基站，其特征在于，所述处理单元在将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率作为所述第一小基站和所述L个相邻小基站待使用的发射功率之前，还用于：
    当当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合与所述宏基站上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合相同时，确定所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，不小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
  22. 根据权利要求21所述的宏基站，其特征在于，所述处理单元还 用于，将存储上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，更新为，存储所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
  23. 根据权利要求21或22所述的宏基站，其特征在于，所述处理单元还用于：
    若所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；确定第三小基站待使用的发射功率为第二发射功率，所述第三小基站为所述第一小基站集合中当前使用所述第一发射功率的小基站；
    对第二小基站集合中的第四小基站使用第一发射功率，对所述第二小基站集合中的除所述第四小基站之外的小基站使用第二发射功率，得到L个不同的功率组合；所述第二小基站集包括所述第一小基站和所述L个相邻小基站中除所述第三小基站之外的所有小基站；每个所述功率组合包括所述第二小基站集合的各个小基站使用的发射功率；所述第四小基站为所述第二小基站集合中的任一小基站；
    确定所述L个功率组合中各个功率组合对应的所述第二小基站集中的各个小基站的平均信道质量；
    确定所述第二小基站集合中的各个小基站的平均信道质量的加权平均值中，最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值；
    将所述最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值所对应的功率组合中，所述第二小基站集合的各个小基站使用的发射功率作为所述第二小基站集合中的各个小基站待使用的发射功率。
  24. 根据权利要求16或19-23任意一项所述的宏基站，其特征在于，所述第二发射功率为零发射功率。
  25. 根据权利要求16-24任意一项所述的宏基站，其特征在于，所述处理单元还用于在根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，获取所述宏基站 的覆盖范围内M个小基站的当前平均信道质量；所述M个小基站包括所述第一小基站和所述H个相邻小基站，所述M为大于或等于H+1的整数；以及确定所述M个小基站的当前平均信道质量的加权平均值为所述信道质量阈值。
  26. 一种小基站发射功率管理方法，其特征在于，所述方法包括：
    第一小基站接收所述第一小基站管理的N个用户设备UE上报的测量报告，每个所述测量报告包括发送所述测量报告的所述UE测量的信道质量；
    所述第一小基站根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量；
    所述第一小基站根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率。
  27. 根据权利要求26所述的方法，其特征在于，所述第一小基站根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率，包括：
    所述第一小基站根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
    所述第一小基站根据所述当前平均信道质量大于信道质量阈值，以及所述当前负载不大于负载阈值，确定所述第一小基站使待用的发射功率为第二发射功率；或者，
    所述第一小基站根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率大于第二发射功率，确定所述第一小基站待使用的发射功率为所述第二发射功率；或者，
    所述第一小基站根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于所述第二发射功率，且所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
    所述第一小基站根据所述当前平均信道质量不大于信道质量阈值，以及所述当前发射功率不大于第二发射功率，且所述当前负载不大于负载阈 值，确定所述第一小基站待使用的发射功率为所述第二发射功率；
    其中，所述第一发射功率大于所述第二发射功率。
  28. 根据权利要求26所述的方法，其特征在于，
    所述第一小基站根据所述第一小基站的当前负载和当前发射功率中的至少一个，以及所述当前平均信道质量，获取所述第一小基站待使用的发射功率，包括：
    所述第一小基站向宏基站发送所述第一小基站的所述当前平均信道质量和所述当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；
    所述第一小基站接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率；
    所述第一小基站根据所述功率分配指示信息确定所述第一小基站待使用的发射功率。
  29. 根据权利要求28所述的方法，其特征在于，每个所述测量报告还包括发送所述测量报告的所述UE测量的干扰最强的相邻小基站的标识；
    所述第一小基站接收所述宏基站发送的功率分配指示信息之前，还包括：
    所述第一小基站根据所述N个测量报告中的相邻小基站的标识，获取相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，1≤H≤N，且所述H为整数，所述H个相邻小基站的标识为所述N个测量报告中的相邻小基站的标识；
    所述第一小基站向所述宏基站发送所述相邻小基站标识集。
  30. 根据权利要求29所述的方法，其特征在于，所述第一小基站接收所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载发送的功率分配指示信息，包括：
    所述第一小基站接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
  31. 根据权利要求30所述的方法，其特征在于，所述第一小基站接收所述宏基站发送的功率分配指示信息之前，还包括：
    所述第一小基站向所述宏基站发送所述第一小基站的当前发射功率。
  32. 根据权利要求31所述的方法，其特征在于，所述第一小基站接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息，包括：
    所述第一小基站接收所述宏基站根据所述第一小基站的所述当前平均信道质量、所述当前发射功率、所述当前负载以及所述相邻小基站标识集，发送的所述功率分配指示信息。
  33. 根据权利要求28-32任意一项所述的方法，其特征在于，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率为第一发射功率或者第二发射功率，所述第一发射功率大于所述第二发射功率。
  34. 根据权利要求27或33所述的方法，其特征在于，所述第二发射功率为零发射功率。
  35. 根据权利要求27或33或34所述的方法，其特征在于，还包括：所述第一小基站调度第一UE在所述第一小基站使用所述第一发射功率时进行业务传输；所述第一UE为所述第一小基站管理的进行高负载或高数据速率业务的任一UE；和/或，
    所述第一小基站调度第二UE在所述第一小基站使用所述第二发射功率时进行业务传输；所述第二UE为所述第一小基站管理的进行低负载或低数据速率业务的任一UE。
  36. 根据权利要求27或33-35任意一项所述的方法，其特征在于，还包括：
    当所述第一小基站使用所述第二发射功率时，所述第一小基站向相邻小基站发送调度指示信息，所述调度指示信息用于指示所述相邻小基站调度所述相邻小基站管理的边缘UE在第一时频资源上进行业务传输；所述第一时频资源为所述第一小基站管理的中心UE进行业务传输的时频资源。
  37. 根据权利要求27或33-36任意一项所述的方法，其特征在于，当所述第一小基站使用所述第二发射功率或所述第一发射功率时，所述第一 小基站的参考信号的发射功率为所述第一小基站的当前发射功率。
  38. 根据权利要求26-37任意一项所述的方法，其特征在于，还包括：
    当所述第一小基站的负载在预设时间内的变化率大于第一阈值，所述第一小基站降低所述N个UE上报测量报告的时间周期；
    当所述第一小基站的负载在预设时间内的变化率小于第二阈值，所述第一小基站增大所述N个UE上报测量报告的时间周期；
    其中，所述第一阈值大于或等于所述第二阈值。
  39. 根据权利要求26-38任意一项所述的方法，其特征在于，所述第一小基站根据所述N个测量报告中的信道质量，确定所述第一小基站的当前平均信道质量，包括：
    所述第一小基站确定所述N个测量报告中的信道质量的加权平均值为所述第一小基站的当前瞬时信道质量；
    所述第一小基站根据所述第一小基站上一次获得的平均信道质量、所述第一小基站的当前瞬时信道质量，获得所述第一小基站所述当前平均信道质量。
  40. 一种小基站发射功率管理方法，其特征在于，包括：
    宏基站接收第一小基站发送的所述第一小基站的当前平均信道质量和当前负载；所述第一小基站为所述宏基站覆盖范围内的任一小基站；
    所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率；
    所述宏基站向所述第一小基站发送功率分配指示信息，所述功率分配指示信息用于指示所述第一小基站待使用的发射功率。
  41. 根据权利要求40所述的方法，其特征在于，所述宏基站根据所述第一小基站的所述当前信道质量和所述当前负载，确定所述第一小基站待使用的发射功率，包括：
    所述宏基站根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载大于负载阈值，确定所述第一小基站待使用的发射功率为第一发射功率；或者，
    所述宏基站根据所述第一小基站的所述当前平均信道质量大于信道质量阈值，以及所述第一小基站的所述当前负载不大于负载阈值，确定所 述第一小基站待使用的发射功率为第二发射功率；或者，
    所述宏基站根据所述第一小基站的所述当前平均信道质量不大于信道质量阈值，以及所述第一小基站的所述当前负载小于负载阈值，确定所述第一小基站待使用的发射功率为第二发射功率；
    其中，所述第一发射功率大于所述第二发射功率。
  42. 根据权利要求40所述的方法，其特征在于，所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，还包括：
    所述宏基站接收所述第一小基站发送的所述第一小基站的相邻小基站标识集，所述相邻小基站标识集包括H个相邻小基站的标识，所述H为大于或等于1的整数；
    所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率，包括：
    当所述第一小基站的所述当前平均信道质量不大于信道质量阈值，且所述第一小基站的所述当前负载不小于负载阈值时，所述宏基站根据所述相邻小基站标识集，获取所述H个相邻小基站的当前负载；
    所述宏基站根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率。
  43. 根据权利要求42所述的方法，其特征在于，所述宏基站根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率，包括：
    当所述H个相邻小基站的当前负载均小于负载阈值，所述宏基站确定所述第一小基站待使用的发射功率为第一发射功率。
  44. 根据权利要求42所述的方法，其特征在于，所述宏基站根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率之前，还包括：所述宏基站接收所述第一小基站发送的所述第一小基站的当前发射功率；
    所述宏基站根据所述H个相邻小基站的当前负载，确定所述第一小基站待使用的发射功率，包括：
    当所述H个相邻小基站中至少一个相邻小基站的当前负载不小于所 述负载阈值时，所述宏基站根据所述H个相邻小基站的当前负载和所述负载阈值，确定所述H个相邻小基站中当前负载不小于所述负载阈值的L个相邻小基站，1≤L<H，且所述L为整数；
    所述宏基站获取所述L个相邻小基站的当前平均信道质量和当前发射功率；
    所述宏基站根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率；其中，所述第一小基站和所述L个相邻小基站待使用的发射功率使得所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值最大；所述第一小基站和所述L个相邻小基站中的其中一个小基站待使用的发射功率为第一发射功率，所述第一小基站和所述L个相邻小基站中所述除待使用的发射功率为所述第一发射功率的小基站之外的小基站待使用的发射功率为第二发射功率；
    其中，所述第一发射功率大于所述第二发射功率。
  45. 根据权利要求44所述的方法，其特征在于，所述宏基站根据所述第一小基站的当前平均信道质量和当前发射功率、以及所述L个相邻小基站的当前平均信道质量和当前发射功率，确定所述第一小基站和所述L个相邻小基站待使用的发射功率，包括：
    所述宏基站对第一小基站集合中的第二小基站使用第一发射功率，对所述第一小基站集合中除所述第二小基站之外的小基站使用第二发射功率，得到L+1个不同的功率组合，每个所述功率组合包括所述第一小基站和所述L个相邻小基站使用的发射功率；所述第一小基站集合包括所述第一小基站和所述L个相邻小基站，所述第二小基站为所述第一小基站集合中的任一小基站；
    所述宏基站根据所述第一小基站的当前发射功率对应所述第一小基站的当前平均信道质量，以及所述L个相邻小基站的当前发射功率对应所述L个相邻小基站的当前平均信道质量，确定所述L+1个功率组合中各个功率组合对应的所述第一小基站和所述L个相邻小基站的平均信道质量；
    所述宏基站确定所述各个功率组合对应的所述第一小基站和所述L 个相邻小基站的平均信道质量的加权平均值中，最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；
    所述宏基站将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率分别作为所述第一小基站和所述L个相邻小基站待使用的发射功率。
  46. 根据权利要求45所述的方法，其特征在于，所述宏基站将所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合中，所述第一小基站和所述L个相邻小基站使用的发射功率作为所述第一小基站和所述L个相邻小基站待使用的发射功率之前，还包括：
    当所述宏基站当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合与所述宏基站上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值所对应的功率组合相同时，所述宏基站确定所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，不小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
  47. 根据权利要求46所述的方法，其特征在于，还包括：
    所述宏基站将存储上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，更新为，存储所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值。
  48. 根据权利要求46或47所述的方法，其特征在于，还包括：
    若所述宏基站确定所述当前确定的所述最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值，小于，所述宏基站存储的上一次确定的最大的所述第一小基站和所述L个相邻小基站的平均信道质量的加权平均值；所述宏基站确定第三小基站待使用的发射功率为第二发射功率，所述第三小基站为所述第一小基站集合中当前使用所述第一发射功率的小基站；
    所述宏基站对第二小基站集合中的第四小基站使用第一发射功率，对所述第二小基站集合中的除所述第四小基站之外的小基站使用第二发射功率，得到L个不同的功率组合；所述第二小基站集包括所述第一小基站和所述L个相邻小基站中除所述第三小基站之外的所有小基站；每个所述功率组合包括所述第二小基站集合的各个小基站使用的发射功率；所述第四小基站为所述第二小基站集合中的任一小基站；
    所述宏基站确定所述L个功率组合中各个功率组合对应的所述第二小基站集中的各个小基站的平均信道质量；
    所述宏基站确定所述第二小基站集合中的各个小基站的平均信道质量的加权平均值中，最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值；
    所述宏基站将所述最大的所述第二小基站集合中的各个小基站的平均信道质量的加权平均值所对应的功率组合中，所述第二小基站集合的各个小基站使用的发射功率作为所述第二小基站集合中的各个小基站待使用的发射功率。
  49. 根据权利要求41或44-48任意一项所述的方法，其特征在于，所述第二发射功率为零发射功率。
  50. 根据权利要求41-49任意一项所述的方法，其特征在于，所述宏基站根据所述第一小基站的所述当前平均信道质量和所述当前负载，确定所述第一小基站待使用的发射功率之前，还包括：
    所述宏基站获取所述宏基站的覆盖范围内M个小基站的当前平均信道质量；所述M个小基站包括所述第一小基站和所述H个相邻小基站，所述M为大于或等于H+1的整数；
    所述宏基站确定所述M个小基站的当前平均信道质量的加权平均值为所述信道质量阈值。
  51. 一种小基站发射功率管理系统，其特征在于，包括：至少一个如权利要求1-14任意一项所述的小基站，以及如权利要求15-25任意一项所述的宏基站。
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