WO2016172877A1 - 一种小区功率共享和调整方法和基站 - Google Patents

一种小区功率共享和调整方法和基站 Download PDF

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Publication number
WO2016172877A1
WO2016172877A1 PCT/CN2015/077802 CN2015077802W WO2016172877A1 WO 2016172877 A1 WO2016172877 A1 WO 2016172877A1 CN 2015077802 W CN2015077802 W CN 2015077802W WO 2016172877 A1 WO2016172877 A1 WO 2016172877A1
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WIPO (PCT)
Prior art keywords
cell
transmit power
base station
joint
cells
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PCT/CN2015/077802
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English (en)
French (fr)
Inventor
沈强
李春光
卢鹏
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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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 CN201580066101.1A priority Critical patent/CN107005849A/zh
Priority to EP15890257.7A priority patent/EP3277012A4/en
Priority to PCT/CN2015/077802 priority patent/WO2016172877A1/zh
Publication of WO2016172877A1 publication Critical patent/WO2016172877A1/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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/143—Downlink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • 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
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/281—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account user or data type priority
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a cell power sharing and adjustment method and a base station.
  • the transmit power of a cell is often limited by the hardware capabilities of the Radio Remote Unit (RRU). constraint.
  • RRU Radio Remote Unit
  • the sum of the maximum transmit powers of the multiple cells is the maximum power transmit capability of the shared RRU.
  • each cell is independent of each other, that is, when each cell transmits data, the actual transmit power cannot exceed the maximum transmit power configured by the user.
  • a periodic power sharing scheme In order to overcome the problem that the actual transmit power of the cell is limited by the maximum transmit power of the cell, a periodic power sharing scheme has been implemented in the industry.
  • the actual transmit power of the cell is not limited by the maximum transmit power of the cell, but the sum of the transmit powers of multiple cells sharing the same RRU cannot be greater than the maximum power transmit capability of the RRU.
  • the so-called periodic power sharing that is, the transmission power of each cell is adjusted based on the power consumption of the previous cycle.
  • the periodic power sharing scheme is an estimation scheme, which estimates the transmission power consumption of each cell in the next cycle according to the historical power consumption situation, and there is a problem that the estimation is not accurate.
  • the network changes frequently the real-time changes of the network service cannot be adjusted in time to adjust the transmit power of each cell.
  • the power usage of the RRU is not high, and the user experience and the cell throughput rate cannot be optimized.
  • the embodiment of the present invention provides a cell power sharing and adjustment method and a base station, which are used to solve the problem that the periodic power sharing scheme cannot follow the real-time change of the network service in time in the prior art.
  • the problem of transmitting power is a cell power sharing and adjustment method and a base station, which are used to solve the problem that the periodic power sharing scheme cannot follow the real-time change of the network service in time in the prior art. The problem of transmitting power.
  • an embodiment of the present invention provides a base station, including:
  • a collecting unit configured to collect service resource information of each cell in the joint cell in a current period, where each cell in the joint cell belongs to the base station and shares the same RRU, and the service resource information is used to represent the cell Available resources and business characteristics;
  • an allocating unit configured to allocate a corresponding transmit power to each cell according to the service resource information of each cell, where a sum of allocated transmit powers of each cell is a transmit power supported by the RRU.
  • the service resource information includes at least one of the following:
  • the cell available codeword The cell available codeword, the CQI information of the scheduled UE, the data buffer information, the number of scheduled UEs, the terminal type information of the scheduled UE, and the channel type information of the UE.
  • the allocating unit is specifically configured to:
  • Each cell is allocated a corresponding initial transmit power, where a sum of initial transmit powers allocated by each cell is a transmit power supported by the RRU;
  • the initial transmit power of the cell with zero buffered data is allocated to the cell whose buffer data amount is not zero.
  • the allocating unit is specifically configured to:
  • Each cell is allocated a corresponding transmit power according to the maximum transmit power requirement of each cell.
  • the allocating unit is specifically configured to:
  • Each cell is allocated a corresponding transmit power according to the power efficiency of each cell or according to the maximum transmit power requirement and power efficiency of each cell.
  • an embodiment of the present invention provides a base station, including:
  • a deployment unit configured to allocate remaining transmit power of the selected cell to other unconnected cells if it is determined that there is remaining transmit power allocated to the selected cell after performing cell scheduling and TFRC operations on the selected cell A cell that is selected and has not completed scheduling.
  • the deployment unit when the remaining transmit power of the selected cell is allocated to other unselected and unscheduled cells in the joint cell, is specifically used to:
  • the deployment unit when the remaining transmit power of the selected cell is allocated to other unselected and unscheduled cells in the joint cell, is specifically used to:
  • each of the other unselected and unscheduled cells in the joint cell According to the maximum transmit power requirement of each of the other unselected and unscheduled cells in the joint cell, respectively, each of the other unselected and unscheduled cells in the joint cell The cell allocates a corresponding transmit power.
  • the deployment unit when the remaining transmit power of the selected cell is allocated to other unselected and unscheduled cells in the joint cell, is specifically used to:
  • the mapping relationship between the maximum transmit power of the cell and the maximum transmit power requirement of the cell, and the index The service resource information of the current time and the maximum transmit power requirement corresponding to the remaining transmit power currently supported by the RRU; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; wherein the RRU currently supports The remaining transmit power is the sum of the remaining transmit power of the selected cell and the initial transmit power allocated to the other unselected and unscheduled cells;
  • the maximum transmit power requirement and the power efficiency are respectively allocated corresponding transmit powers for each of the other unselected and unscheduled cells in the joint cell.
  • the base station further includes:
  • An additional unit configured to perform, after performing scheduling and TFRC operations on each of the joint cells, determining that a transmit power of the last scheduled cell is remaining, and that a remaining hardware processing time of the base station meets a preset condition When the amount of data exchanged in the joint cell is not zero Each cell performs cell scheduling and TFRC operations again.
  • the selected unit when selecting a cell from the joint cell, is specifically used to:
  • each cell is sorted according to the order in which the number of times the remaining transmit power of each cell is scheduled to be generated from large to small;
  • the cells are selected from the joint cells in turn.
  • an embodiment of the present invention provides a cell power sharing method, including:
  • the base station collects service resource information of each cell in the joint cell in the current period, where each cell in the joint cell belongs to the base station and shares the same RRU, and the service resource information is used to represent resources available to the cell and Business characteristics
  • the base station allocates corresponding transmit power to each cell according to the service resource information of each cell, where the sum of the allocated transmit powers of each cell is the transmit power supported by the RRU.
  • the service resource information includes at least one of the following:
  • the cell available codeword The cell available codeword, the CQI information of the scheduled UE, the data buffer information, the number of scheduled UEs, the terminal type information of the scheduled UE, and the channel type information of the UE.
  • the base station is configured as each cell according to the service resource information of each cell Assign the corresponding transmit power, including:
  • the base station allocates a corresponding initial transmit power to each cell, where a sum of initial transmit powers allocated by each cell is a transmit power supported by the RRU;
  • the base station allocates an initial transmit power of a cell with a buffered data amount of zero to a buffered data amount. A cell that is not zero.
  • the base station is, according to the service resource information of each cell, each cell Assign the corresponding transmit power, including:
  • the base station performs, for each cell, a mapping relationship between the preset cell service resource information, the maximum available transmit power of the cell, and the maximum transmit power requirement of the cell, the index and the service resource information of the cell in the current period, and the RRU support.
  • the maximum transmit power requirement corresponding to the transmit power
  • the base station allocates corresponding transmit power to each cell according to the maximum transmit power requirement of each cell.
  • the base station is, according to the service resource information of each cell, each cell Assign the corresponding transmit power, including:
  • the base station performs, for each cell, a mapping relationship between the preset cell service resource information, the maximum available transmit power of the cell, and the maximum transmit power requirement of the cell, the index and the service resource information of the cell in the current period, and the RRU support.
  • the maximum transmit power requirement corresponding to the transmit power; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell;
  • the base station allocates corresponding transmit power to each cell according to the power efficiency of each cell or according to the maximum transmit power requirement and power efficiency of each cell.
  • an embodiment of the present invention provides a cell power adjustment method, including:
  • the base station selects a cell from the joint cell, and each of the joint cells belongs to the base station and shares the same RRU;
  • the base station After the base station performs cell scheduling and TFRC operations on the selected cell, if it is determined that the allocated transmit power of the selected cell has remaining, the remaining transmit power of the selected cell is allocated to other unselected cells in the joint cell. And the cell that has not completed scheduling.
  • the base station allocates the remaining transmit power of the selected cell to other unselected and unscheduled cells in the joint cell, including :
  • the base station allocates the remaining transmit power of the selected cell to other cells in the joint cell that are not selected and are to be scheduled.
  • the base station allocates the remaining transmit power of the selected cell to other unselected and unscheduled cells in the joint cell, including :
  • the base station collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time;
  • mapping based on preset cell service resource information, maximum available transmit power of the cell, and maximum transmit power requirement of the cell And indexing a maximum transmit power requirement corresponding to the service resource information of the cell at the current time and the remaining transmit power currently supported by the RRU; wherein the remaining transmit power currently supported by the RRU is the remaining transmit power of the selected cell
  • the base station according to the maximum transmit power requirement of each of the other unselected and unscheduled cells in the joint cell, respectively, in other unselected and unscheduled cells in the joint cell
  • Each cell is assigned a corresponding transmit power.
  • the base station allocates the remaining transmit power of the selected cell to other unselected and unscheduled cells in the joint cell, including :
  • the base station collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time;
  • mapping based on preset cell service resource information, maximum available transmit power of the cell, and maximum transmit power requirement of the cell And determining a maximum transmit power requirement corresponding to the service resource information of the cell at the current time and the remaining transmit power currently supported by the RRU; and determining a power efficiency of the cell according to a maximum transmit power requirement of the cell; wherein the RRU The currently supported remaining transmit power is the remaining transmit power of the selected cell and is assigned to the other unselected and The sum of the initial transmit powers of cells that have not completed scheduling;
  • the base station according to power efficiency of each of the other unselected and unscheduled cells in the joint cell, or according to other unselected and unscheduled cells in the joint cell
  • the maximum transmit power requirement and power efficiency of the cells are respectively allocated to each of the cells in the unselected and unscheduled cells in the joint cell.
  • the method further includes:
  • the base station selects a cell from the joint cell, including :
  • the base station sorts each of the cells according to the historical power usage of each cell in the joint cell according to the order in which the number of times the remaining transmit power of each cell is scheduled to be generated from large to small;
  • the base station sequentially selects cells from the joint cell according to the sorting result.
  • the transmit power consumption of each cell in the current period is estimated, and then the transmit power of the cell is adaptively adjusted, so that each The transmit power allocated by the cell can better adapt to the service demand of the cell and improve the cell throughput rate.
  • the power consumption of the RRU and the throughput rate of the cell are improved by allocating the remaining transmit power after cell completion and TFRC operation to each cell with data requirements.
  • FIG. 1 is a schematic diagram of a base station used for implementing power sharing between cells according to an embodiment of the present invention. Schematic;
  • FIG. 2 is a schematic structural diagram of a base station for implementing power allocation between cells according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of another base station for implementing power sharing between cells according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of another base station for implementing power allocation between cells according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of a cell power sharing method according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a cell power adjustment method according to an embodiment of the present invention.
  • the embodiment of the present invention provides a cell power sharing method and a base station, and estimates the transmit power consumption of each cell in the current period according to the specific service condition of each cell in the current data transmission period, thereby adaptively adjusting the cell.
  • the transmit power is such that the transmit power allocated by each cell can better adapt to the service demand of the cell, and the cell throughput rate is improved.
  • the embodiment of the present invention further provides a cell power adjustment method and a base station, which allocates remaining transmit power after operation of a cell scheduling and a transport format resource combination (English: Transmission Format Resource Combination, TFRC) to each cell.
  • a cell with data requirements improves the power utilization of the RRU and the throughput of the cell.
  • the embodiments of the present invention are described based on the WCDMA network standard, the present invention is proposed based on the specific service conditions of each cell in the current data transmission period after appropriate modification and modification.
  • the pre-allocation of the cell power and the method of allocating the remaining transmit power after completing the cell scheduling to each cell to other data buffer cells can still be applied to other network standards, such as the second generation mobile communication system (English: 2nd Generation, Abbreviation: 2G), other third-generation mobile communication systems (English: 3nd Generation, 3G for short) and Long Term Evolution (LTE) systems.
  • an embodiment of the present invention provides a base station 1 for implementing power sharing between cells, where the base station 1 includes:
  • the processor 11 is configured to collect service resource information of each cell in the joint cell in a current period, where each cell in the joint cell belongs to the base station and shares the same RRU, and the service resource information is used for characterization.
  • the available resources of the cell and the service characteristics of the cell; the corresponding transmit power is allocated to each cell according to the service resource information of each cell, where the sum of the allocated transmit power of each cell is the transmit power supported by the RRU .
  • the service resource information includes at least one of the following: a cell available codeword, and a channel quality indicator (English: Channel Quality Indicator, CQI) information of the user equipment (English: User Equipment, abbreviated as: UE)
  • CQI Channel Quality Indicator
  • the processor 11 allocates corresponding transmit power to each cell according to the service resource information of each cell, and may be limited to the following four modes:
  • the processor 11 allocates a corresponding initial transmit power to each cell, where the sum of the initial transmit powers allocated by the cells is the transmit power supported by the RRU, and is further included according to the service resource information of each cell.
  • the data buffer information determines the amount of buffered data of each cell; and then allocates the initial transmit power of the cell with the buffered data amount to zero to the cell whose buffer data amount is not zero.
  • the processor 11 performs, for each cell, a mapping relationship between the preset cell service resource information, the maximum available transmit power of the cell, and the maximum transmit power requirement of the cell, the index and the service resource information of the cell in the current period, and the RRU.
  • the maximum transmit power requirement corresponding to the supported transmit power and then each cell is allocated a corresponding transmit power according to the maximum transmit power requirement of each cell.
  • the processor 11 performs, for each cell, a mapping relationship between the preset cell service resource information, the maximum available transmit power of the cell, and the maximum transmit power requirement of the cell, where the index and the cell are in the The service resource information of the pre-period and the maximum transmit power requirement corresponding to the transmit power supported by the RRU; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; and then according to the power efficiency of each cell, respectively The cell allocates a corresponding transmit power.
  • the processor 11 performs, for each cell, a mapping relationship between the preset cell service resource information, the maximum available transmit power of the cell, and the maximum transmit power requirement of the cell, the index and the service resource information of the cell in the current period, and the RRU.
  • the maximum transmit power requirement corresponding to the supported transmit power; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; and then assigning corresponding transmit to each cell according to the maximum transmit power requirement and power efficiency of each cell respectively power.
  • an embodiment of the present invention provides a base station 2, which is configured to implement power allocation between cells, where the base station 2 includes:
  • the processor 21 is configured to select a cell from the joint cell, where each cell in the joint cell belongs to the base station and share the same RRU; after performing cell scheduling and TFRC operations on the selected cell, if determining If the selected cell has the remaining transmit power remaining, the remaining transmit power of the selected cell is allocated to other unselected and unscheduled cells in the joint cell.
  • the base station allocates the remaining transmit power of the selected cell to other unselected and unscheduled cells in the joint cell, and may be limited to the following four deployment modes:
  • the processor 21 allocates the remaining transmit power of the selected cell to other cells in the joint cell that are not selected and are to be scheduled.
  • the processor 21 collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time; and is not selected and not completed for the other cells in the joint cell
  • Each cell in the scheduled cell performs: mapping based on preset cell service resource information, a maximum transmit power available to the cell, and a maximum transmit power requirement of the cell, and indexing the service resource information of the cell at the current time and the current RRU
  • the remaining supported transmit power corresponds to the most a large transmit power demand; wherein the remaining transmit power currently supported by the RRU is a sum of the remaining transmit power of the selected cell and an initial transmit power allocated to the other unselected and unscheduled cells; According to the maximum transmit power requirement of each of the other unselected and unscheduled cells in the joint cell, respectively, each of the other unselected and unscheduled cells in the joint cell
  • the cell allocates a corresponding transmit power.
  • the processor 21 collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time; and is not selected and not completed for the other cells in the joint cell
  • Each cell in the scheduled cell performs: mapping based on preset cell service resource information, a maximum transmit power available to the cell, and a maximum transmit power requirement of the cell, and indexing the service resource information of the cell at the current time and the current RRU The maximum transmit power requirement corresponding to the supported remaining transmit power; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; wherein the remaining transmit power currently supported by the RRU is the remaining transmit power of the selected cell and a sum of initial transmit powers allocated to the other cells that are not selected and not scheduled; and then according to the power efficiency of each of the other unselected and unscheduled cells in the joint cell, respectively Allocating corresponding ones of other cells in the joint cell that are not selected and not scheduled to be scheduled Fire power.
  • the processor 21 collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time; and is not selected and not completed for the other cells in the joint cell
  • Each cell in the scheduled cell performs: mapping based on preset cell service resource information, a maximum transmit power available to the cell, and a maximum transmit power requirement of the cell, and indexing the service resource information of the cell at the current time and the current RRU
  • the maximum transmit power requirement corresponding to the supported remaining transmit power; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; wherein the remaining transmit power currently supported by the RRU is the remaining transmit power of the selected cell and a sum of initial transmit powers allocated to the other cells that are not selected and not scheduled; and then according to the maximum of each of the other unselected and unscheduled cells in the joint cell
  • the transmit power requirement and the power efficiency are respectively allocated corresponding transmit powers for each of the other cells in the joint cell that are not selected and are not scheduled to be scheduled.
  • the processor 21 is further configured to: after performing scheduling and TFRC operations on each of the joint cells, determine that a transmit power of the last scheduled cell is remaining, and the base station remains When the hardware processing time meets the preset condition, cell scheduling and TFRC operations are performed again for each cell in which the data exchange amount in the joint cell is not zero.
  • the selecting unit 21 is specifically configured to: according to the historical power usage of each cell in the joint cell, the remaining transmission is scheduled according to each cell.
  • Each of the cells is sorted in descending order of the number of historical powers; and the cells are sequentially selected from the joint cells according to the sorting result.
  • an embodiment of the present invention further provides a base station 3, which is used to implement power sharing between cells, where the base station 3 includes:
  • the collecting unit 301 is configured to collect service resource information of each cell in the joint cell in a current period, where each cell in the joint cell belongs to the base station and shares the same RRU, and the service resource information is used for characterization. The resources available to the cell and the characteristics of the service.
  • the allocating unit 302 is configured to allocate, according to the service resource information of each cell, a corresponding transmit power, where the sum of the allocated transmit power of each cell is the transmit power supported by the RRU.
  • the service resource information includes at least one of the following: a cell available codeword, CQI information of a scheduled UE, data cache information, a number of scheduled UEs, a terminal type information of a scheduled UE, and a channel type in which the UE is located. information.
  • the allocating unit 302 allocates corresponding transmit power to each cell according to the service resource information of each cell, and may be limited to the following four modes:
  • the allocation unit 302 allocates a corresponding initial transmit power to each cell, where the sum of the initial transmit powers allocated by the cells is the transmit power supported by the RRU, and is further included according to the service resource information of each cell.
  • Data cache information determining the amount of cached data for each cell; The initial transmit power of the cell with the buffered data amount of zero is then allocated to the cell whose buffer data amount is not zero.
  • the allocating unit 302 performs, for each cell, a mapping relationship between the maximum available transmit power of the cell and the maximum transmit power requirement of the cell based on the preset cell service resource information, the index and the service resource information of the cell in the current period, and the RRU.
  • the maximum transmit power requirement corresponding to the supported transmit power and then each cell is allocated a corresponding transmit power according to the maximum transmit power requirement of each cell.
  • the allocating unit 302 performs, for each cell, a mapping relationship between the maximum available transmit power of the cell and the maximum transmit power requirement of the cell based on the preset cell service resource information, the index and the service resource information of the cell in the current period, and the RRU.
  • the maximum transmit power requirement corresponding to the supported transmit power; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; and then according to the power efficiency of each cell, or according to the maximum transmit power requirement and power efficiency of each cell,
  • Each cell is assigned a corresponding transmit power.
  • the allocating unit 302 performs, for each cell, a mapping relationship between the maximum available transmit power of the cell and the maximum transmit power requirement of the cell based on the preset cell service resource information, the index and the service resource information of the cell in the current period, and the RRU.
  • the maximum transmit power requirement corresponding to the supported transmit power; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; and then assigning corresponding transmit to each cell according to the maximum transmit power requirement and power efficiency of each cell respectively power.
  • an embodiment of the present invention further provides a base station 4, which is configured to implement power allocation between cells, where the base station 4 includes:
  • the selecting unit 401 is configured to select a cell from the joint cell, where each cell in the joint cell belongs to the base station and shares the same RRU.
  • the deployment unit 402 is configured to determine, after performing cell scheduling and TFRC operations on the selected cell, If the selected cell has the remaining transmit power remaining, the remaining transmit power of the selected cell is allocated to other unselected and unscheduled cells in the joint cell.
  • the base station allocates the remaining transmit power of the selected cell to other unselected and unscheduled cells in the joint cell, and may be limited to the following four deployment modes:
  • the deployment unit 402 allocates the remaining transmit power of the selected cell to other cells in the joint cell that are not selected and are to be scheduled.
  • the deployment unit 402 collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time; and is not selected and not completed for the other cells in the joint cell.
  • Each cell in the scheduled cell performs: mapping based on preset cell service resource information, a maximum transmit power available to the cell, and a maximum transmit power requirement of the cell, and indexing the service resource information of the cell at the current time and the current RRU The maximum transmit power requirement corresponding to the supported remaining transmit power; wherein the remaining transmit power currently supported by the RRU is the remaining transmit power of the selected cell and allocated to the other unselected and unscheduled cells a sum of initial transmit powers; then according to the maximum transmit power demand of each of the other unselected and unscheduled cells in the joint cell, respectively, other unselected and unfinished in the joint cell Each of the scheduled cells allocates a corresponding transmit power.
  • the deployment unit 402 collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time; and is not selected and not completed for the other cells in the joint cell.
  • Each cell in the scheduled cell performs: mapping based on preset cell service resource information, a maximum transmit power available to the cell, and a maximum transmit power requirement of the cell, and indexing the service resource information of the cell at the current time and the current RRU The maximum transmit power requirement corresponding to the supported remaining transmit power; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; wherein the remaining transmit power currently supported by the RRU is the remaining transmit power of the selected cell and Total allocation of initial transmit power allocated to the other cells that are not selected and not scheduled for completion And then according to the power efficiency of each of the other unselected and unscheduled cells in the joint cell, respectively, each of the other unselected and unscheduled cells in the joint cell Each cell allocates a corresponding transmit power.
  • the deployment unit 402 collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time; and is not selected and not completed for the other cells in the joint cell.
  • Each cell in the scheduled cell performs: mapping based on preset cell service resource information, a maximum transmit power available to the cell, and a maximum transmit power requirement of the cell, and indexing the service resource information of the cell at the current time and the current RRU The maximum transmit power requirement corresponding to the supported remaining transmit power; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; wherein the remaining transmit power currently supported by the RRU is the remaining transmit power of the selected cell and a sum of initial transmit powers allocated to the other cells that are not selected and not scheduled; and then according to a maximum transmit power requirement of each of the other unselected and unscheduled cells in the joint cell And power efficiency, respectively, in other unselected and unscheduled cells in the joint cell Each cell is allocated a transmit power corresponding to.
  • the base station 4 further includes:
  • An adding unit 403 after performing scheduling and TFRC operations on each of the joint cells, determining that a transmit power of the last scheduled cell is remaining, and that the remaining hardware processing time of the base station meets a preset In the case of the condition, the cell scheduling and the TFRC operation are performed again for each cell in which the data exchange amount in the joint cell is not zero.
  • the selecting unit 401 is specifically configured to: according to the historical power usage of each cell in the joint cell, the remaining transmission is scheduled according to each cell.
  • Each of the cells is sorted in descending order of the number of historical powers; and the cells are sequentially selected from the joint cells according to the sorting result.
  • an embodiment of the present invention provides a cell power sharing method, and the implementation process of the method is as follows:
  • Step 501 The base station collects service resource information of each cell in the joint cell in the current period.
  • Each cell in the joint cell belongs to the base station and shares the same RRU, and the service resource information is used to represent resources available to the cell and service features.
  • the period may be a transmission time interval defined by a wireless communication protocol (English: Transmission time Interval, TTI for short), and may be 2 milliseconds (unit: ms), or an integer multiple of 2 ms.
  • the service resource information includes at least one of a cell available codeword, CQI information of the scheduled UE, data buffer information, the number of scheduled UEs, terminal type information of the scheduled UE, and channel type information of the UE. .
  • the cell available codeword can be used to distinguish each communication of the cell.
  • CQI information is a measure of channel measurement for a given channel. Usually a high value CQI indicates that a channel has a high quality and vice versa.
  • the data cache information is used to characterize the amount of data to be transmitted on the cell side.
  • the terminal type information is used to characterize the maximum data transmission capability of the UE, and may include capability information such as the type of UE (English: Category), such as Category 4, Category 3, etc., and the rate of Category 4 is 50 Mbps higher than that of Category 3.
  • the channel type information of the UE may include Additive White Gaussian Noise (AWGN) channel, PA (English: Pedestrian A) channel, PB (English: Pedestrian B) channel, VA30 (English: Vehicular30) ) Channel or VA120 (English: Vehicular 120) channel, etc.
  • AWGN Additive White Gaussian Noise
  • Step 502 The base station allocates corresponding transmit power to each cell according to the service resource information of each cell, where the sum of the allocated transmit powers of each cell is the transmit power supported by the RRU.
  • the base station allocates corresponding transmit power to each cell according to the service resource information of each cell, and may be limited to the following four modes:
  • the base station allocates corresponding initial transmit power to each cell, where the sum of the initial transmit powers allocated by each cell is the transmit power supported by the RRU.
  • the transmission power supported by the RRU mentioned herein refers to the transmission power of the RRU permission, which is related to how much power resources the telecommunication operator purchases, and the maximum transmission power supported by the RRU.
  • the manner in which the base station allocates initial transmit power to each cell may be that the RRU is supported.
  • the transmit power is equally distributed to each cell, or the power allocation may be performed according to the size of the buffered data amount of each cell, or the power allocation according to the quality of the channel in which the cell is located, and the like.
  • the base station determines the amount of buffered data of each cell according to the data cache information included in the service resource information of each cell.
  • the base station allocates an initial transmit power of a cell with a buffered data amount of zero to a cell whose buffer data amount is not zero.
  • the manner in which the base station allocates the transmit power may refer to the manner in which the base station allocates the initial transmit power.
  • the base station performs, for each cell, a mapping relationship between the preset cell service resource information, the maximum available transmit power of the cell, and the maximum transmit power requirement of the cell, the index and the service resource information of the cell in the current period, and the RRU support.
  • the maximum transmit power demand corresponding to the transmit power, and then the corresponding transmit power is allocated to each cell according to the maximum transmit power requirement of each cell.
  • the base station can allocate the transmit power proportionally according to the maximum transmit power requirement of each cell, and the cell with larger transmit power demand will allocate more transmit power.
  • mapping relationship between the preset cell service resource information, the maximum available transmit power of the cell and the maximum transmit power requirement of the cell referred to herein is the TFRC table under the WCDMA standard.
  • the base station performs, for each cell, a mapping relationship between the preset cell service resource information, the maximum available transmit power of the cell, and the maximum transmit power requirement of the cell, the index and the service resource information of the cell in the current period, and the RRU support.
  • the maximum transmit power requirement corresponding to the transmit power; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; and then assigning corresponding transmit power to each cell according to the power efficiency of each cell.
  • the base station can allocate the transmit power proportionally according to the power efficiency of each cell, and the more power efficient cell will allocate more transmit power.
  • the power efficiency of the cell can be obtained by: according to the current service resource information of the cell and the maximum transmit power corresponding to the transmit power supported by the RRU. Therefore, by searching the TFRC table, the maximum transmit power required by the cell and the maximum data amount that can be transmitted at the maximum transmit power are obtained, and the ratio of the maximum data amount to the maximum transmit power is the power efficiency of the cell.
  • the lookup TFRC table knows that the maximum transmit power matched to the respective maximum transmit power requirements is configured for cell 1 and cell 2, respectively, cell 1 and cell 2 respectively.
  • the maximum amount of data that can be sent is X, Y; then the cell can be allocated X/(X+Y) shares of the total transmit power supported by the RRU, and the cell 2 is allocated Y/(the total transmit power supported by the RRU). X+Y) total power.
  • the base station performs, for each cell, a mapping relationship between the preset cell service resource information, the maximum available transmit power of the cell, and the maximum transmit power requirement of the cell, the index and the service resource information of the cell in the current period, and the RRU support.
  • the maximum transmit power requirement corresponding to the transmit power; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell; and then assigning corresponding transmit power to each cell according to the maximum transmit power requirement and power efficiency of each cell.
  • the lookup TFRC table knows that the maximum transmit power matched to the respective maximum transmit power requirements is configured for cell 1 and cell 2, respectively, cell 1 and cell 2 respectively.
  • the maximum amount of data that can be transmitted is X, Y; then a smaller value can be selected from the maximum transmit power requirement of cell 1 and the X/(X+Y) share of the total transmit power supported by the RRU.
  • the transmission power allocated to the cell 1 similarly, a smaller value may be selected from the maximum transmit power requirement of the cell 2 and the total power of the Y/(X+Y) shares of the total transmit power supported by the RRU, As the transmission power allocated to the cell 2.
  • a relatively simple transmission power allocation manner may be adopted, such as the first method.
  • a more complex and effective transmission power allocation mode may be selected, such as mode 2, mode 3, and mode 4.
  • the computing resource of the base station may be a utilization rate of a central processing unit (English: Central Processing Unit, CPU for short).
  • an embodiment of the present invention provides a cell power adjustment method. It should be noted that this The cell power adjustment method provided by the invention is not limited to the cell power sharing method proposed in the foregoing embodiment of the present invention. Referring to Figure 6, the implementation process of the method is as follows:
  • Step 601 The base station selects a cell from the joint cell, and each of the joint cells belongs to the base station and shares the same RRU.
  • Step 602 After completing the cell scheduling and TFRC operation on the selected cell, if the base station determines that the allocated transmit power of the selected cell has remaining, the remaining transmit power of the selected cell is allocated to other unconnected cells. A cell that is selected and has not completed scheduling.
  • the base station allocates the remaining transmit power of the selected cell to other unselected and unscheduled cells in the joint cell, and may be limited to the following four deployment modes:
  • the base station allocates the remaining transmit power of the selected cell to other cells in the joint cell that are not selected and are to be scheduled.
  • the base station collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time.
  • the service resource information includes at least one of the following: a cell available codeword, CQI information of the scheduled UE, data cache information, the number of scheduled UEs, terminal type information of the scheduled UE, and channel type information of the UE.
  • the base station performs, for each of the other unselected and unscheduled cells in the joint cell, based on preset cell service resource information, maximum available transmit power of the cell, and maximum transmit power demand of the cell. a mapping relationship, the maximum transmit power requirement corresponding to the service resource information of the current time and the remaining transmit power supported by the RRU; wherein the remaining transmit power currently supported by the RRU is the remaining of the selected cell The sum of the transmit power and the initial transmit power allocated to the other unselected and unscheduled cells.
  • the base station according to the maximum transmit power requirement of each of the other unselected and unscheduled cells in the joint cell is respectively unselected and unscheduled in the joint cell.
  • Each cell in the cell is assigned a corresponding transmit power.
  • the base station collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time.
  • the base station performs, for each of the other unselected and unscheduled cells in the joint cell, based on preset cell service resource information, maximum available transmit power of the cell, and maximum transmit power demand of the cell. a mapping relationship, the maximum transmit power requirement corresponding to the service resource information of the cell at the current time and the remaining transmit power currently supported by the RRU; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell;
  • the remaining transmit power currently supported by the RRU is the sum of the remaining transmit power of the selected cell and the initial transmit power allocated to the other unselected and unscheduled cells.
  • the base station is respectively used according to the power efficiency of each of the other unselected and unscheduled cells in the joint cell, and each of the other unselected and unscheduled cells in the joint cell Each cell allocates a corresponding transmit power.
  • the base station collects service resource information of each cell in the unselected and unscheduled cells in the joint cell at the current time.
  • the base station performs, for each of the other unselected and unscheduled cells in the joint cell, based on preset cell service resource information, maximum available transmit power of the cell, and maximum transmit power demand of the cell. a mapping relationship, the maximum transmit power requirement corresponding to the service resource information of the current period of the cell and the remaining transmit power currently supported by the RRU; and determining the power efficiency of the cell according to the maximum transmit power requirement of the cell;
  • the remaining transmit power currently supported by the RRU is the sum of the remaining transmit power of the selected cell and the initial transmit power allocated to the other unselected and unscheduled cells.
  • the base station according to the maximum transmit power requirement and power efficiency of each of the other unselected and unscheduled cells in the joint cell, respectively, other unselected and not in the joint cell
  • Each cell in the cell that has completed scheduling allocates a corresponding transmit power.
  • a relatively simple transmission power allocation manner may be adopted, such as the first method.
  • a more complex and effective transmit power allocation mode may be selected, such as mode 2, mode 3, and mode 4.
  • the computing resource of the base station may be the utilization rate of its CPU.
  • the cell scheduling and the TFRC operation may be performed again for each cell in which the data exchange amount in the joint cell is not zero.
  • the power addition process is not performed.
  • the base station selects a cell from the joint cell in a scheduling order and performs cell scheduling and TFRC operations in sequence, in order to improve the implementation efficiency of the solution, when selecting a cell from the joint cell, the base station may be according to the joint cell.
  • the historical power usage of each cell in the sequence is sorted according to the order in which the number of times the remaining transmission power of each cell is scheduled to be generated, and the cells are sorted according to the ranking result, and sequentially from the joint cell. Selected cell.
  • each cell must have an opportunity to be scheduled. Therefore, the cells that are likely to have residual transmit power are scheduled first, and the remaining transmit power of these cells can be directly allocated to other cells, thereby improving the transmit power. Matching efficiency.
  • the technical solution for cell power sharing estimates the transmission of each cell in the current period according to the specific service condition of each cell in the current data transmission period. The power consumption situation, and then adaptively adjust the transmit power of the cell, so that the transmit power allocated by each cell can better adapt to the service demand of the cell, and improve the cell throughput rate.
  • the technical solution for cell power adjustment provided by the embodiment of the present invention allocates the remaining transmit power after completing cell scheduling and TFRC operations in each cell to other cells with data buffer, and in the first round of cell scheduling and TFRC operations. The remaining transmit power after completion is added to other cells that still have data buffer, and the added transmit power is used by the secondary cell scheduling and the TFRC operation, thereby improving the power utilization of the RRU and the throughput rate of the cell.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. Instructions are provided for implementation in the flowchart The steps of a process or a plurality of processes and/or block diagrams of a function specified in a block or blocks.

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Abstract

本发明提供了一种小区功率共享和调整方法和基站，根据每个小区在当前的数据传输周期的具体业务情况，估计每个小区在当前周期的发射功率消耗情况，进而自适应地调整小区的发射功率，使得每个小区分配到的发射功率能够更好地适应本小区的业务需求，提高了小区吞吐率。以及，通过将每个小区完成小区调度和TFRC操作后的剩余发射功率分配给其他有数据需求的小区，提高了RRU的功率利用率和小区的吞吐率。

Description

一种小区功率共享和调整方法和基站 技术领域
本发明涉及通信技术领域，尤其涉及一种小区功率共享和调整方法和基站。
背景技术
在宽带码分多址接入(英文：Wide-band Code Division Multiple Access，简称：WCDMA)网络中，小区的发射功率往往受射频拉远单元(英文：Remote Radio Unit，简称：RRU)硬件能力的约束。当多个小区共享同一个RRU时，常用的做法是为每个小区配置一个最大发射功率，这多个小区的最大发射功率之和即为其共用RRU的最大功率发射能力。在后续的数据发送过程中，各个小区相互独立，即每个小区在发送数据时，实际的发射功率不能超过用户为其配置的最大发射功率。
为了克服小区实际的发射功率受小区的最大发射功率限制的问题，目前业内已实现了周期功率共享方案。在周期功率共享方案中，小区实际的发射功率不受小区的最大发射功率的限制，但共用同一个RRU的多个小区的发射功率之和仍不能大于该RRU的最大功率发射能力。所谓周期功率共享，即是基于上一个周期的功率消耗情况来调整各个小区的发射功率。
然而，周期功率共享方案为一种预估方案，其根据历史功率消耗情况来估计下一个周期各个小区的发射功率消耗情况，存在估计不准的问题。在网络变化频繁时，无法跟随网络业务的实时变化及时调整各个小区的发射功率，导致RRU的功率利用率不高，无法使用户的业务体验和小区吞吐率达到最优。
发明内容
本发明实施例提供一种小区功率共享和调整方法和基站，用以解决现有技术中周期功率共享方案无法跟随网络业务的实时变化及时调整各个小区的 发射功率的问题。
第一方面，本发明实施例提供了一种基站，包括：
收集单元，用于收集联合小区中的每个小区在当前周期的业务资源信息，所述联合小区中的每个小区归属于所述基站且共享同一个RRU，所述业务资源信息用于表征小区可用的资源和具有的业务特征；
分配单元，用于根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，其中各个小区被分配的发射功率之和为所述RRU支持的发射功率。
结合第一方面，在第一方面的第一种可能的实现方式中，所述业务资源信息包括以下至少之一：
小区可用码字，被调度UE的CQI信息，数据缓存信息，被调度UE的数目，被调度UE的终端类型信息，UE所在的信道类型信息。
结合第一方面或第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，所述分配单元具体用于：
分别为每个小区分配对应的初始发射功率，其中各个小区被分配的初始发射功率之和为所述RRU支持的发射功率；
根据所述每个小区的业务资源信息包含的数据缓存信息，确定每个小区的缓存数据量；
将缓存数据量为零的小区的初始发射功率，调配给缓存数据量不为零的小区。
结合第一方面或第一方面的第一种可能的实现方式，在第一方面的第三种可能的实现方式中，所述分配单元具体用于：
针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；
根据每个小区的最大发射功率需求，分别为每个小区分配对应的发射功率。
结合第一方面或第一方面的第一种可能的实现方式，在第一方面的第四种可能的实现方式中，所述分配单元具体用于：
针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；
根据每个小区的功率效率、或根据每个小区的最大发射功率需求和功率效率，分别为每个小区分配对应的发射功率。
第二方面，本发明实施例提供了一种基站，包括：
选定单元，用于从联合小区中选定一小区，所述联合小区中的每个小区归属于所述基站且共享同一个RRU；
调配单元，用于在对选定小区完成小区调度和TFRC操作后，若确定选定小区被分配的发射功率有剩余，则将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区。
结合第二方面，在第二方面的第一种可能的实现方式中，在将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区时，所述调配单元具体用于：
将所述选定小区的剩余发射功率，分配给联合小区中其他未被选定且下一个待调度的小区。
结合第二方面，在第二方面的第二种可能的实现方式中，在将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区时，所述调配单元具体用于：
收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；
针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述 RRU当前支持的剩余发射功率对应的最大发射功率需求；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；
根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
结合第二方面，在第二方面的第三种可能的实现方式中，在将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区时，所述调配单元具体用于：
收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；
针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；
根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的功率效率、或根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求和功率效率，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
结合第二方面和第二方面的第一种至第三种可能的实现方式中的任意一种，在第二方面的第四种可能的实现方式中，所述基站还包括：
追加单元，用于完成对所述联合小区中的每个小区进行调度和TFRC操作之后，在确定最后一个被调度的小区的发射功率有剩余、且所述基站剩余的硬件处理时间满足预设条件时，对所述联合小区中的数据换存量不为零的 每个小区再次进行小区调度和TFRC操作。
结合第二方面和第二方面的第一种至第三种可能的实现方式中的任意一种，在第二方面的第五种可能的实现方式中，在从联合小区中选定小区时，所述选定单元具体用于：
根据所述联合小区中的每个小区的历史功率使用情况，按照每个小区被调度完出现剩余发射功率的历史次数从大到小的顺序，对所述每个小区进行排序；
按照排序结果，依次从联合小区中选定小区。
第三方面，本发明实施例提供了一种小区功率共享方法，包括：
基站收集联合小区中的每个小区在当前周期的业务资源信息，所述联合小区中的每个小区归属于所述基站且共享同一个RRU，所述业务资源信息用于表征小区可用的资源和具有的业务特征；
所述基站根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，其中各个小区被分配的发射功率之和为所述RRU支持的发射功率。
结合第三方面，在第三方面的第一种可能的实现方式中，所述业务资源信息包括以下至少之一：
小区可用码字，被调度UE的CQI信息，数据缓存信息，被调度UE的数目，被调度UE的终端类型信息，UE所在的信道类型信息。
结合第三方面或第三方面的第一种可能的实现方式，在第三方面的第二种可能的实现方式中，所述基站根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，包括：
所述基站分别为每个小区分配对应的初始发射功率，其中各个小区被分配的初始发射功率之和为所述RRU支持的发射功率；
所述基站根据所述每个小区的业务资源信息包含的数据缓存信息，确定每个小区的缓存数据量；
所述基站将缓存数据量为零的小区的初始发射功率，调配给缓存数据量 不为零的小区。
结合第三方面或第三方面的第一种可能的实现方式，在第三方面的第三种可能的实现方式中，所述基站根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，包括：
所述基站针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；
所述基站根据每个小区的最大发射功率需求，分别为每个小区分配对应的发射功率。
结合第三方面或第三方面的第一种可能的实现方式，在第三方面的第四种可能的实现方式中，所述基站根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，包括：
所述基站针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；
所述基站根据每个小区的功率效率、或根据每个小区的最大发射功率需求和功率效率，分别为每个小区分配对应的发射功率。
第四方面，本发明实施例提供了一种小区功率调整方法，包括：
基站从联合小区中选定一小区，所述联合小区中的每个小区归属于所述基站且共享同一个RRU；
所述基站在对选定小区完成小区调度和TFRC操作后，若确定选定小区被分配的发射功率有剩余，则将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区。
结合第四方面，在第四方面的第一种可能的实现方式中，所述基站将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区，包括：
所述基站将所述选定小区的剩余发射功率，分配给联合小区中其他未被选定且下一个待调度的小区。
结合第四方面，在第四方面的第二种可能的实现方式中，所述基站将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区，包括：
所述基站收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；
所述基站针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；
所述基站根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
结合第四方面，在第四方面的第三种可能的实现方式中，所述基站将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区，包括：
所述基站收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；
所述基站针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且 未完成调度的小区的初始发射功率的总和；
所述基站根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的功率效率、或根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求和功率效率，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
结合第四方面和第四方面的第一种至第三种可能的实现方式中的任意一种，在第四方面的第四种可能的实现方式中，还包括：
所述基站完成对所述联合小区中的每个小区进行调度和TFRC操作之后，在确定最后一个被调度的小区的发射功率有剩余、且所述基站剩余的硬件处理时间满足预设条件时，对所述联合小区中的数据换存量不为零的每个小区再次进行小区调度和TFRC操作。
结合第四方面和第四方面的第一种至第三种可能的实现方式中的任意一种，在第四方面的第五种可能的实现方式中，基站从联合小区中选定小区，包括：
所述基站根据所述联合小区中的每个小区的历史功率使用情况，按照每个小区被调度完出现剩余发射功率的历史次数从大到小的顺序，对所述每个小区进行排序；
所述基站按照排序结果，依次从联合小区中选定小区。
利用本发明实施例提供的方案，根据每个小区在当前的数据传输周期的具体业务情况，估计每个小区在当前周期的发射功率消耗情况，进而自适应地调整小区的发射功率，使得每个小区分配到的发射功率能够更好地适应本小区的业务需求，提高了小区吞吐率。此外，利用本发明实施例提供的方案，通过将每个小区完成小区调度和TFRC操作后的剩余发射功率分配给其他有数据需求的小区，提高了RRU的功率利用率和小区的吞吐率。
附图说明
图1为本发明实施例提供的一种用于实现小区之间的功率共享的基站的 结构示意图；
图2为本发明实施例提供的一种用于实现小区之间的功率调配的基站的结构示意图；
图3为本发明实施例提供的另一种用于实现小区之间的功率共享的基站的结构示意图；
图4为本发明实施例提供的另一种用于实现小区之间的功率调配的基站的结构示意图；
图5为本发明实施例提供的一种小区功率共享方法的流程图；
图6为本发明实施例提供的一种小区功率调整方法的流程图。
具体实施方式
本发明实施例提供了一种小区功率共享方法和基站，根据每个小区在当前的数据传输周期的具体业务情况，估计每个小区在当前周期的发射功率消耗情况，进而自适应地调整小区的发射功率，使得每个小区分配到的发射功率能够更好地适应本小区的业务需求，提高了小区吞吐率。
本发明实施例还提供了一种小区功率调整方法和基站，通过将每个小区完成小区调度和传输格式资源组合(英文：Transmission Format Resource Combination，简称：TFRC)操作后的剩余发射功率分配给其他有数据需求的小区，提高了RRU的功率利用率和小区的吞吐率。
需要说明的是，虽然本发明的各实施例是基于WCDMA的网络制式进行说明，但本发明在经过适当的改动和变型后，提出的基于每个小区在当前的数据传输周期的具体业务情况进行小区功率预分配，以及将每个小区完成小区调度后的剩余发射功率分配给其他有数据缓存小区的方法，仍可以适用于其他的网络制式，如第二代移动通信系统(英文：2nd Generation，简称：2G)、其他第三代移动通信系统(英文：3nd Generation，简称：3G)以及长期演进(Long Term Evolution，LTE)系统等。
下面结合说明书附图和各实施例对本发明技术方案进行说明。
参阅图1所示，本发明实施例提供了一种基站1，用于实现小区之间的功率共享，所述基站1包括：
处理器11，用于收集联合小区中的每个小区在当前周期的业务资源信息，所述联合小区中的每个小区归属于所述基站且共享同一个RRU，所述业务资源信息用于表征小区可用的资源和具有的业务特征；根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，其中各个小区被分配的发射功率之和为所述RRU支持的发射功率。
可选的，所述业务资源信息包括以下至少之一：小区可用码字，被调度用户设备(英文：User Equipment，简称：UE)的信道质量指示(英文：Channel Quality Indicator，简称：CQI)信息，数据缓存信息，被调度UE的数目，被调度UE的终端类型信息，UE所在的信道类型信息。
可选地，所述处理器11根据所述每个小区的业务资源信息分别为每个小区分配对应的发射功率，可以有但不限于以下四种分配方式：
方式一、
所述处理器11分别为每个小区分配对应的初始发射功率，其中各个小区被分配的初始发射功率之和为所述RRU支持的发射功率；再根据所述每个小区的业务资源信息包含的数据缓存信息，确定每个小区的缓存数据量；然后将缓存数据量为零的小区的初始发射功率，调配给缓存数据量不为零的小区。
方式二、
所述处理器11针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；然后根据每个小区的最大发射功率需求，分别为每个小区分配对应的发射功率。
方式三、
所述处理器11针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当 前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；然后根据每个小区的功率效率，分别为每个小区分配对应的发射功率。
方式四、
所述处理器11针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；然后根据每个小区的最大发射功率需求和功率效率，分别为每个小区分配对应的发射功率。
参阅图2所示，本发明实施例提供了一种基站2，用于实现小区之间的功率调配，所述基站2包括：
处理器21，用于从联合小区中选定一小区，所述联合小区中的每个小区归属于所述基站且共享同一个RRU；在对选定小区完成小区调度和TFRC操作后，若确定选定小区被分配的发射功率有剩余，则将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区。
可选地，所述基站将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区，可以有但不限于以下四种调配方式：
方式一、
所述处理器21将所述选定小区的剩余发射功率，分配给联合小区中其他未被选定且下一个待调度的小区。
方式二、
所述处理器21收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；并针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最 大发射功率需求；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；然后根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
方式三、
所述处理器21收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；并针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；然后根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的功率效率，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
方式四、
所述处理器21收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；并针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；然后根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大 发射功率需求和功率效率，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
可选地，所述处理器21还用于，完成对所述联合小区中的每个小区进行调度和TFRC操作之后，在确定最后一个被调度的小区的发射功率有剩余、且所述基站剩余的硬件处理时间满足预设条件时，对所述联合小区中的数据换存量不为零的每个小区再次进行小区调度和TFRC操作。
可选地，在从联合小区中选定小区时，所述选定单元21具体用于：根据所述联合小区中的每个小区的历史功率使用情况，按照每个小区被调度完出现剩余发射功率的历史次数从大到小的顺序，对所述每个小区进行排序；并按照排序结果，依次从联合小区中选定小区。
参阅图3所示，本发明实施例还提供了一种基站3，用于实现小区之间的功率共享，所述基站3包括：
收集单元301，用于收集联合小区中的每个小区在当前周期的业务资源信息，所述联合小区中的每个小区归属于所述基站且共享同一个RRU，所述业务资源信息用于表征小区可用的资源和具有的业务特征。
分配单元302，用于根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，其中各个小区被分配的发射功率之和为所述RRU支持的发射功率。
可选地，所述业务资源信息包括以下至少之一：小区可用码字，被调度UE的CQI信息，数据缓存信息，被调度UE的数目，被调度UE的终端类型信息，UE所在的信道类型信息。
可选地，所述分配单元302根据所述每个小区的业务资源信息分别为每个小区分配对应的发射功率，可以有但不限于以下四种分配方式：
方式一、
所述分配单元302分别为每个小区分配对应的初始发射功率，其中各个小区被分配的初始发射功率之和为所述RRU支持的发射功率；再根据所述每个小区的业务资源信息包含的数据缓存信息，确定每个小区的缓存数据量； 然后将缓存数据量为零的小区的初始发射功率，调配给缓存数据量不为零的小区。
方式二、
所述分配单元302针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；然后根据每个小区的最大发射功率需求，分别为每个小区分配对应的发射功率。
方式三、
所述分配单元302针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；然后根据每个小区的功率效率、或根据每个小区的最大发射功率需求和功率效率，分别为每个小区分配对应的发射功率。
方式四、
所述分配单元302针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；然后根据每个小区的最大发射功率需求和功率效率，分别为每个小区分配对应的发射功率。
参阅图4所示，本发明实施例还提供了一种基站4，用于实现小区之间的功率调配，所述基站4包括：
选定单元401，用于从联合小区中选定一小区，所述联合小区中的每个小区归属于所述基站且共享同一个RRU。
调配单元402，用于在对选定小区完成小区调度和TFRC操作后，若确定 选定小区被分配的发射功率有剩余，则将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区。
可选地，所述基站将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区，可以有但不限于以下四种调配方式：
方式一、
所述调配单元402将所述选定小区的剩余发射功率，分配给联合小区中其他未被选定且下一个待调度的小区。
方式二、
所述调配单元402收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；并针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；然后根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
方式三、
所述调配单元402收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；并针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总 和；然后根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的功率效率，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
方式四、
所述调配单元402收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；并针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；然后根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求和功率效率，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
可选地，所述基站4还包括：
追加单元403，用于完成对所述联合小区中的每个小区进行调度和TFRC操作之后，在确定最后一个被调度的小区的发射功率有剩余、且所述基站剩余的硬件处理时间满足预设条件时，对所述联合小区中的数据换存量不为零的每个小区再次进行小区调度和TFRC操作。
可选地，在从联合小区中选定小区时，所述选定单元401具体用于：根据所述联合小区中的每个小区的历史功率使用情况，按照每个小区被调度完出现剩余发射功率的历史次数从大到小的顺序，对所述每个小区进行排序；并按照排序结果，依次从联合小区中选定小区。
参阅图5所示，本发明实施例提供了一种小区功率共享方法，该方法的实施流程如下：
步骤501：基站收集联合小区中的每个小区在当前周期的业务资源信息， 所述联合小区中的每个小区归属于所述基站且共享同一个RRU，所述业务资源信息用于表征小区可用的资源和具有的业务特征。
所述周期可以是无线通信协议定义的发送时间间隔(英文：Transmission time Interval，简称：TTI)，可以是2毫秒(单位：ms)，或者2ms的整数倍。
其中，所述业务资源信息包括了小区可用码字，被调度UE的CQI信息，数据缓存信息，被调度UE的数目，被调度UE的终端类型信息以及UE所在的信道类型信息中的至少之一。小区可用码字可用来区分小区的每一路通信。CQI信息是衡量一个给定信道的信道测量标准，通常一个高值的CQI表示一个信道有高的质量，反之亦然。数据缓存信息用于表征小区侧待发送的数据量。终端类型信息用于表征UE最大数据发送能力，可以包括UE的种类(英文：Category)等能力信息，如Category4、Category3等，而Category4的速率比Category3要高50Mbps。UE所在的信道类型信息可以包括加性高斯白噪声(英文：Additive White Gaussian Noise，简称：AWGN)信道、PA(英文：Pedestrian A)信道、PB(英文：Pedestrian B)信道、VA30(英文：Vehicular30)信道或者VA120(英文：Vehicular 120)信道等。
步骤502：所述基站根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，其中各个小区被分配的发射功率之和为所述RRU支持的发射功率。
可选地，所述基站根据所述每个小区的业务资源信息分别为每个小区分配对应的发射功率，可以有但不限于以下四种分配方式：
方式一、
首先，所述基站分别为每个小区分配对应的初始发射功率，其中各个小区被分配的初始发射功率之和为所述RRU支持的发射功率。
这里所说的所述RRU支持的发射功率，指的是RRU许可的发射功率，和电信运营商购买了多少功率资源相关，其最大可为RRU支持的最大发射功率。
所述基站为每个小区分配初始发射功率的方式，可以是将所述RRU支持 的发射功率平均分配给每个小区，也可以是根据每个小区缓存数据量的大小来进行功率分配，或者是根据小区所处信道的好坏进行功率分配，等等。
其次，所述基站根据所述每个小区的业务资源信息包含的数据缓存信息，确定每个小区的缓存数据量。
然后，所述基站将缓存数据量为零的小区的初始发射功率，调配给缓存数据量不为零的小区。这里基站调配发射功率的方式可以参考上述基站分配初始发射功率的方式。
方式二、
所述基站针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求，然后根据每个小区的最大发射功率需求，分别为每个小区分配对应的发射功率。
例如，基站可以根据每个小区的最大发射功率需求，按比例分配发射功率，发射功率需求更大的小区将分配到更多的发射功率。
这里所说的预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，在WCDMA制式下，指的是TFRC表格。
方式三、
所述基站针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；然后根据每个小区的功率效率，分别为每个小区分配对应的发射功率。
例如，基站可以根据每个小区的功率效率，按比例分配发射功率，功率效率更高的小区将分配到更多的发射功率。
在WCDMA制式下，可以通过以下方式得到小区的功率效率：根据小区当前的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需 求，通过查找TFRC表格，得到该小区需求的最大发射功率和在该最大发射功率下能够发送的最大数据量，该最大数据量与最大发射功率的比值，即为该小区的功率效率。
例如，假设小区1和小区2共享一个RRU时，若查找TFRC表格知晓在分别为小区1和小区2配置了与各自的最大发射功率需求匹配的最大发射功率的情况下，小区1和小区2分别可以发送的最大数据量为X，Y；那么可以为小区1分配RRU所支持的总发射功率的X/(X+Y)份功率，为小区2分配RRU所支持的总发射功率的Y/(X+Y)份的总功率。
方式四、
所述基站针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；然后根据每个小区的最大发射功率需求和功率效率，分别为每个小区分配对应的发射功率。
例如，假设小区1和小区2共享一个RRU时，若查找TFRC表格知晓在分别为小区1和小区2配置了与各自的最大发射功率需求匹配的最大发射功率的情况下，小区1和小区2分别可以发送的最大数据量为X，Y；那么可以在小区1的最大发射功率需求和RRU所支持的总发射功率的X/(X+Y)份功率二者之中选择一个较小值，作为分配给小区1的发射功率；同理，可以在小区2的最大发射功率需求和RRU所支持的总发射功率的Y/(X+Y)份的总功率二者之中选择一个较小值，作为分配给小区2的发射功率。
需要说明的是，在所述基站的计算资源较紧张的情况下，可以采用较为简单的发射功率分配方式，如方式一。而在所述基站的计算资源较多的情况下，则可以选择更为复杂有效的发射功率分配方式，如方式二、方式三和方式四。其中，所述基站的计算资源，可以是其中央处理器(英文：Central Processing Unit，简称：CPU)的利用率。
此外，本发明实施例提供了一种小区功率调整方法。需要说明的是，本 发明提供的小区功率调整方法并不受限于上述本发明实施例提出的小区功率共享方法。参阅图6所示，该方法的实施流程如下：
步骤601：基站从联合小区中选定一小区，所述联合小区中的每个小区归属于所述基站且共享同一个RRU。
步骤602：所述基站在对选定小区完成小区调度和TFRC操作后，若确定选定小区被分配的发射功率有剩余，则将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区。
可选地，所述基站将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区，可以有但不限于以下四种调配方式：
方式一、
所述基站将所述选定小区的剩余发射功率，分配给联合小区中其他未被选定且下一个待调度的小区。
方式二、
首先，所述基站收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息。
其中，所述业务资源信息包括以下至少之一：小区可用码字，被调度UE的CQI信息，数据缓存信息，被调度UE的数目，被调度UE的终端类型信息，UE所在的信道类型信息。
其次，所述基站针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和。
然后，所述基站根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
这里基站根据小区的最大发射功率需求进行功率分配的实现过程可以参考上述步骤502中的分配方式二。
方式三、
首先，所述基站收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息。
其次，所述基站针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和。
所述基站根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的功率效率，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
这里基站根据小区的功率效率进行功率分配的实现过程可以参考上述步骤502中的分配方式三。
方式四、
首先，所述基站收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息。
其次，所述基站针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和。
然后，所述基站根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求和功率效率，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
这里基站根据小区的最大发射功率需求和功率效率进行功率分配的实现过程可以参考上述步骤502中的分配方式四。
需要说明的是，在所述基站的计算资源较紧张的情况下，可以采用较为简单的发射功率调配方式，如方式一。而在所述基站的计算资源较多的情况下，则可以选择更为复杂有效的发射功率调配方式，如方式二、方式三和方式四。其中，所述基站的计算资源，可以是其CPU的利用率。
可选地，在所述基站完成对所述联合小区中的每个小区进行调度和TFRC操作之后，当所述基站确定最后一个被调度的小区的发射功率有剩余、且所述基站剩余的硬件处理时间满足预设条件(即剩余的硬件处理时间充裕)时，可以对所述联合小区中的数据换存量不为零的每个小区再次进行小区调度和TFRC操作，具体实现过程可以参考步骤501-502，和步骤601-602。当所述基站确定最后一个被调度的小区的发射功率没有剩余，或者所述基站剩余的硬件处理时间不满足预设条件(即剩余的硬件处理时间不充裕)，则不进行功率追加过程。
由于基站是按照调度顺序从联合小区中选定小区，并依次进行小区调度和TFRC操作，因此为了提高方案的实施效率，在从联合小区中选定小区时，所述基站可以根据所述联合小区中的每个小区的历史功率使用情况，按照每个小区被调度完出现剩余发射功率的历史次数从大到小的顺序，对所述每个小区进行排序，然后按照排序结果，依次从联合小区中选定小区。一般而言，每个小区都必须有被调度到的机会，因此先调度这些有可能出现剩余发射功率的小区，可以将这些小区的剩余发射功率直接调配到其他小区使用，从而提高了发射功率的调配效率。
综上所述，本发明实施例提供的小区功率共享的技术方案，根据每个小区在当前的数据传输周期的具体业务情况，估计每个小区在当前周期的发射 功率消耗情况，进而自适应地调整小区的发射功率，使得每个小区分配到的发射功率能够更好地适应本小区的业务需求，提高了小区吞吐率。此外，本发明实施例提供的小区功率调整的技术方案，通过将每个小区完成小区调度和TFRC操作后的剩余发射功率分配给其他有数据缓存的小区，以及在第一轮小区调度和TFRC操作完成后的剩余的发射功率追加到其他仍有数据缓存的小区，通过二次小区调度和TFRC操作来使用被追加的发射功率，从而提高了RRU的功率利用率和小区的吞吐率。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图 一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (22)

  1. 一种基站，其特征在于，包括：
    收集单元，用于收集联合小区中的每个小区在当前周期的业务资源信息，所述联合小区中的每个小区归属于所述基站且共享同一个射频拉远单元RRU，所述业务资源信息用于表征小区可用的资源和具有的业务特征；
    分配单元，用于根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，其中各个小区被分配的发射功率之和为所述RRU支持的发射功率。
  2. 如权利要求1所述的基站，其特征在于，所述业务资源信息包括以下至少之一：
    小区可用码字，被调度用户设备UE的信道质量指示CQI信息，数据缓存信息，被调度UE的数目，被调度UE的终端类型信息，UE所在的信道类型信息。
  3. 如权利要求1或2所述的基站，其特征在于，所述分配单元具体用于：
    分别为每个小区分配对应的初始发射功率，其中各个小区被分配的初始发射功率之和为所述RRU支持的发射功率；
    根据所述每个小区的业务资源信息包含的数据缓存信息，确定每个小区的缓存数据量；
    将缓存数据量为零的小区的初始发射功率，调配给缓存数据量不为零的小区。
  4. 如权利要求1或2所述的基站，其特征在于，所述分配单元具体用于：
    针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；
    根据每个小区的最大发射功率需求，分别为每个小区分配对应的发射功率。
  5. 如权利要求1或2所述的基站，其特征在于，所述分配单元具体用于：
    针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；
    根据每个小区的功率效率、或根据每个小区的最大发射功率需求和功率效率，分别为每个小区分配对应的发射功率。
  6. 一种基站，其特征在于，包括：
    选定单元，用于从联合小区中选定一小区，所述联合小区中的每个小区归属于所述基站且共享同一个射频拉远单元RRU；
    调配单元，用于在对选定小区完成小区调度和传输格式资源组合TFRC操作后，若确定选定小区被分配的发射功率有剩余，则将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区。
  7. 如权利要求6所述的基站，其特征在于，在将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区时，所述调配单元具体用于：
    将所述选定小区的剩余发射功率，分配给联合小区中其他未被选定且下一个待调度的小区。
  8. 如权利要求6所述的基站，其特征在于，在将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区时，所述调配单元具体用于：
    收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；
    针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；其中，所述RRU当 前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；
    根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
  9. 如权利要求6所述的基站，其特征在于，在将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区时，所述调配单元具体用于：
    收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；
    针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；
    根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的功率效率、或根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求和功率效率，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
  10. 如权利要求6-9中任意一项所述的基站，其特征在于，所述基站还包括：
    追加单元，用于完成对所述联合小区中的每个小区进行调度和TFRC操作之后，在确定最后一个被调度的小区的发射功率有剩余、且所述基站剩余的硬件处理时间满足预设条件时，对所述联合小区中的数据换存量不为零的每个小区再次进行小区调度和TFRC操作。
  11. 如权利要求6-9中任意一项所述的基站，其特征在于，在从联合小区中选定小区时，所述选定单元具体用于：
    根据所述联合小区中的每个小区的历史功率使用情况，按照每个小区被调度完出现剩余发射功率的历史次数从大到小的顺序，对所述每个小区进行排序；
    按照排序结果，依次从联合小区中选定小区。
  12. 一种小区功率共享方法，其特征在于，包括：
    基站收集联合小区中的每个小区在当前周期的业务资源信息，所述联合小区中的每个小区归属于所述基站且共享同一个射频拉远单元RRU，所述业务资源信息用于表征小区可用的资源和具有的业务特征；
    所述基站根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，其中各个小区被分配的发射功率之和为所述RRU支持的发射功率。
  13. 如权利要求12所述的方法，其特征在于，所述业务资源信息包括以下至少之一：
    小区可用码字，被调度用户设备UE的信道质量指示CQI信息，数据缓存信息，被调度UE的数目，被调度UE的终端类型信息，UE所在的信道类型信息。
  14. 如权利要求12或13所述的方法，其特征在于，所述基站根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，包括：
    所述基站分别为每个小区分配对应的初始发射功率，其中各个小区被分配的初始发射功率之和为所述RRU支持的发射功率；
    所述基站根据所述每个小区的业务资源信息包含的数据缓存信息，确定每个小区的缓存数据量；
    所述基站将缓存数据量为零的小区的初始发射功率，调配给缓存数据量不为零的小区。
  15. 如权利要求12或13所述的方法，其特征在于，所述基站根据所述 每个小区的业务资源信息，分别为每个小区分配对应的发射功率，包括：
    所述基站针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；
    所述基站根据每个小区的最大发射功率需求，分别为每个小区分配对应的发射功率。
  16. 如权利要求12或13所述的方法，其特征在于，所述基站根据所述每个小区的业务资源信息，分别为每个小区分配对应的发射功率，包括：
    所述基站针对每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前周期的业务资源信息以及所述RRU支持的发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；
    所述基站根据每个小区的功率效率、或根据每个小区的最大发射功率需求和功率效率，分别为每个小区分配对应的发射功率。
  17. 一种小区功率调整方法，其特征在于，包括：
    基站从联合小区中选定一小区，所述联合小区中的每个小区归属于所述基站且共享同一个射频拉远单元RRU；
    所述基站在对选定小区完成小区调度和传输格式资源组合TFRC操作后，若确定选定小区被分配的发射功率有剩余，则将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区。
  18. 如权利要求17所述的方法，其特征在于，所述基站将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区，包括：
    所述基站将所述选定小区的剩余发射功率，分配给联合小区中其他未被选定且下一个待调度的小区。
  19. 如权利要求17所述的方法，其特征在于，所述基站将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区，包括：
    所述基站收集所述联合小区中其他未被选定且未完成调度的小区中的每 个小区在当前时刻的业务资源信息；
    所述基站针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；
    所述基站根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
  20. 如权利要求17所述的方法，其特征在于，所述基站将所述选定小区的剩余发射功率分配给联合小区中其他未被选定且未完成调度的小区，包括：
    所述基站收集所述联合小区中其他未被选定且未完成调度的小区中的每个小区在当前时刻的业务资源信息；
    所述基站针对所述联合小区中其他未被选定且未完成调度的小区中的每个小区执行：基于预设的小区业务资源信息、小区可用最大发射功率与小区最大发射功率需求的映射关系，索引与该小区在当前时刻的业务资源信息以及所述RRU当前支持的剩余发射功率对应的最大发射功率需求；并根据该小区的最大发射功率需求确定该小区的功率效率；其中，所述RRU当前支持的剩余发射功率为所述选定小区的剩余发射功率与分配给所述其他未被选定且未完成调度的小区的初始发射功率的总和；
    所述基站根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的功率效率、或根据所述联合小区中其他未被选定且未完成调度的小区中的每个小区的最大发射功率需求和功率效率，分别为所述联合小区中其他未被选定且未完成调度的小区中的每个小区分配对应的发射功率。
  21. 如权利要求17-20中任意一项所述的方法，其特征在于，还包括：
    所述基站完成对所述联合小区中的每个小区进行调度和TFRC操作之后， 在确定最后一个被调度的小区的发射功率有剩余、且所述基站剩余的硬件处理时间满足预设条件时，对所述联合小区中的数据换存量不为零的每个小区再次进行小区调度和TFRC操作。
  22. 如权利要求17-20中任意一项所述的方法，其特征在于，基站从联合小区中选定小区，包括：
    所述基站根据所述联合小区中的每个小区的历史功率使用情况，按照每个小区被调度完出现剩余发射功率的历史次数从大到小的顺序，对所述每个小区进行排序；
    所述基站按照排序结果，依次从联合小区中选定小区。
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