WO2013139291A1 - 确定发射功率的方法和设备 - Google Patents

确定发射功率的方法和设备 Download PDF

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Publication number
WO2013139291A1
WO2013139291A1 PCT/CN2013/073012 CN2013073012W WO2013139291A1 WO 2013139291 A1 WO2013139291 A1 WO 2013139291A1 CN 2013073012 W CN2013073012 W CN 2013073012W WO 2013139291 A1 WO2013139291 A1 WO 2013139291A1
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WO
WIPO (PCT)
Prior art keywords
cell
base station
serving base
capacity information
capacity
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PCT/CN2013/073012
Other languages
English (en)
French (fr)
Inventor
罗海燕
邓天乐
汤斌淞
孙彦赞
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2015500761A priority Critical patent/JP5935197B2/ja
Priority to EP13764761.6A priority patent/EP2809114B1/en
Publication of WO2013139291A1 publication Critical patent/WO2013139291A1/zh
Priority to US14/491,631 priority patent/US9363762B2/en

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Classifications

    • 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
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/20—Negotiating bandwidth
    • 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
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • H04W52/244—Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
    • 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 method and apparatus for determining transmit power. Background technique
  • Heterogeneous Network is generally composed of many different types of networks, such as a macro cell (Macro cel l), a pico cell (Pico cel l), and a home (Femto) cell.
  • a macro cell Mocro cel l
  • a pico cell Pico cel l
  • a home Femto
  • Different cells in the HetNet network can share the same radio resource.
  • the different cells may Generate signal interference and reduce user experience.
  • the transmit power used on the same radio resource will affect the interferer cell and the interfered cell (Victim Cel l The cell capacity.
  • the interference source cell transmits the downlink signal on the same radio resource with a smaller transmission power
  • the interference source cell exchanges the capacity of the victim cell in a manner of sacrificing its own capacity; conversely, when the interference source cell
  • the interference source cell exchanges the capacity of the victim cell in exchange for the improvement of its own capacity.
  • An aspect of the present invention provides a method for determining a transmit power, including: a power determining device receiving, by a serving base station of a first cell, capacity information of the first cell, a capacity information of the first cell, and a service of a second cell.
  • the base station corresponds to a preset transmit power on a specific resource of the second cell, where the specific resource is a radio resource shared by the first cell and the second cell; and the power determining device is configured according to the first
  • the capacity information of the cell determines the transmit power used by the serving base station of the second cell on a specific resource of the second cell.
  • a power determining apparatus including: a receiver and a first processor; And receiving the capacity information of the first cell sent by the serving base station of the first cell, where the capacity information of the first cell is different from the preset transmit power of the serving cell of the second cell on the specific resource of the second cell.
  • the specific resource is a radio resource shared by the first cell and the second cell
  • the first processor is configured to determine, according to the capacity information of the first cell received by the receiver, The transmit power used by the serving base station of the second cell on a particular resource of the second cell.
  • a further aspect of the present invention provides a method for determining a transmit power, including: a capacity information of a first cell sent by a serving base station of a first cell to a serving base station of a second cell, and capacity information of the first cell and a second cell
  • the serving base station corresponds to a preset transmit power on a specific resource of the second cell, where the specific resource is a radio resource shared by the first cell and the second cell;
  • the serving base station of the second cell determines a transmit power employed on a particular resource of the second cell.
  • Another aspect of the embodiments of the present invention further provides a base station, including. a transmitter, configured to transmit, to the serving base station of the second cell, the capacity information of the first cell, the capacity information of the first cell, and the preset transmission by the serving base station of the second cell on the specific resource of the second cell
  • the specific resource is a radio resource shared by the first cell and the second cell
  • the first capacity information is used by a serving base station of the second cell to determine a specificity of the second cell The transmit power used on the resource.
  • the power determining device receives the capacity information of the first cell sent by the serving base station of the first cell, and determines the specificity of the serving base station of the second cell in the second cell according to the capacity information of the first cell.
  • the transmit power used in the resource can guarantee the capacity of the first cell (ie, the interfered cell).
  • FIG. 1 is a schematic flow chart of a method for determining transmit power provided in a specific embodiment of the present invention
  • FIG. 2 is a schematic flow chart of a method for determining transmit power provided in a specific embodiment of the present invention
  • FIG. 3 is a schematic flow chart of a method for determining transmit power provided in a specific embodiment of the present invention.
  • FIG. 4 is a schematic block diagram of an apparatus for determining a power determining apparatus according to an embodiment of the present invention
  • FIG. 5 is a schematic block diagram of an apparatus for determining a power determining apparatus according to an embodiment of the present invention
  • FIG. 6 is a schematic block diagram of an apparatus for determining a power determining apparatus according to an embodiment of the present invention.
  • FIG. 7 is a schematic block diagram of an apparatus for a base station according to an embodiment of the present invention
  • FIG. 8 is a schematic block diagram of an apparatus for a base station according to an embodiment of the present invention
  • FIG. 7 is a schematic block diagram of an apparatus for a base station according to an embodiment of the present invention
  • FIG. 8 is a schematic block diagram of an apparatus for a base station according to an embodiment of the present invention
  • FIG. 9 is a schematic diagram of a system for determining transmit power provided in a specific embodiment of the present invention. detailed description
  • this embodiment provides a method for determining transmit power, including the following.
  • the power determining device receives the capacity information of the first cell sent by the serving base station of the first cell, where the capacity information of the first cell and the serving base station of the second cell are preset to be transmitted on the specific resource of the second cell.
  • the specific resource is a radio resource shared by the first cell and the second cell.
  • the power determining device determines, according to the capacity information of the first cell, a transmit power used by a serving base station of the second cell on a specific resource of the second cell.
  • the power determining device receives the capacity information of the first cell sent by the serving base station of the first cell, and determines the specificity of the serving base station of the second cell in the second cell according to the capacity information of the first cell.
  • the transmit power used in the resource can guarantee the capacity of the first cell.
  • the interfered cell is referred to as a first cell
  • the interferer cell is referred to as a second cell
  • the radio resource shared by the first cell and the second cell is referred to as a specific resource.
  • the serving base station of the first cell may be referred to as a first base station
  • the serving base station of the second cell may be simply referred to as a second base station.
  • the foregoing determining, by the power determining device, the transmit power used by the serving base station of the second cell on the specific resource of the second cell, according to the capacity information of the first cell includes: the power determining device according to the capacity information of the first cell Calculating an average capacity of the first cell, and determining a transmit power used by the serving base station of the second cell on a specific resource of the second cell.
  • the determining, by the power determining device, the transmit power used by the serving base station of the second cell on the specific resource of the second cell includes: determining, by the power determining device, that the average capacity of the first cell meets a predetermined capacity threshold And using the maximum transmit power as the transmit power used by the serving base station of the second cell on a specific resource of the second cell.
  • the power determining device receives the capacity information of the first cell sent by the N first base stations, and assumes that the preset transmit power of the second base station on the specific resource of the second cell is P1, P2, and P3. And P4.
  • the preset transmit power of the second base station on the specific resource of the second cell is P1, P2, and P3.
  • P4 E.g,
  • the first base station calculates that the capacity of the first cell corresponding to the preset transmit powers P1, P2, P3, and P4 on the specific resource of the second cell by the second base station is CI (1), C2 (1) , C3 (1 P C4 (1);
  • the first base station 2 calculates the preset transmit powers P1, P2, P3 and the second base station on the specific resources of the second cell.
  • the capacity of the second cell corresponding to P4 is CI (2), C2 (2), C3 (2) and C4 (2);
  • the first base station of the Nth calculates the transmission powers P1, P2, P3, and P4 preset on the specific resources of the second cell with the second base station, and the capacity of the second cell corresponding to the second cell is CI (N), C2 (N ), C3 (N) and C4 (N);
  • the power determining device calculates an average capacity of the N first cells corresponding to the preset transmit powers P l, P2, P3, and 4 of the second base station on the specific resources of the second cell, for P l, N first
  • the total capacity of the community is:
  • Lk is the load factor of the first cell of kth.
  • the second base station receives the load information sent by the first base station, and parses the load information to obtain the load of the first cell. factor.
  • the power determining device determines a maximum transmit power that causes the N first cell average capacities to satisfy a predetermined capacity threshold (Cthresho l d ) as a transmit power used by the serving base station of the second cell on a specific resource of the second cell. For example, assuming P 1 ⁇ P2 ⁇ P3 ⁇ P4, and the average capacity of the N first cells corresponding to PI and P2 both satisfy the predetermined capacity threshold Cthresho ld, the power device preferentially selects P2 as the serving base station of the second cell. The transmit power used on a particular resource of the two cells. That is, while satisfying the N first cell average capacity thresholds, the larger transmission power may make the capacity of the second cell larger.
  • a predetermined capacity threshold Cthresho l d
  • the power determining device receives the capacity information of the first cell sent by the serving base station of the first cell, and determines, according to the capacity information of the first cell, the serving base station of the second cell on the specific resource of the second cell.
  • the transmit power used is such that the average capacity of the first cell is greater than a certain capacity threshold, thereby ensuring the capacity of the first cell.
  • the foregoing method embodiment may further include: 102.
  • the power determining device acquires the capacity information of the second cell, where the capacity information of the second cell and the serving base station of the second cell are The preset transmit power on the specific resource of the second cell corresponds to.
  • the above 101 and 102 can be executed simultaneously, or the execution order is in no particular order.
  • the above 103 may be:
  • the power determining device determines, by the power determining device, the transmit power used by the serving base station of the second cell on the specific resource of the second cell according to the capacity information of the first cell and the capacity information of the second cell.
  • the method of the foregoing optional embodiment specifically includes: sending, by the first base station, capacity information of the first cell to the second base station or the control node, where the capacity information of the first cell and the second base station are in the second
  • the second base station or the control node acquires the capacity information of the second cell after receiving the capacity information of the first cell, and the capacity information of the second cell is also related to the second base station.
  • the second base station or the control node determines the transmit power used by the second base station on the specific resource of the second cell according to the capacity information of the first cell and the capacity information of the second cell, to ensure the first The total capacity of the cell and the second cell can be maximized.
  • control node includes, but is not limited to, a mobility management entity (Mobiology Management Entity, ⁇ ) in the core network, an OAM (Operation, Administration, Maintenance), or an operation support system (Operation).
  • Mobiology Management Entity ⁇
  • OAM Opera Automation, Maintenance
  • Operation Opera support system
  • Support System OSS
  • the control node may also be a base station different from the first base station and the second base station.
  • the specific resource may include one or more of a time domain resource, a frequency domain resource, and an air domain resource, where the time domain resource, the frequency domain resource, or the air domain resource may include but not limited to a single carrier.
  • a set of carriers an Almost Blank Subframe (ABS), a set of ABSs, a single physical resource block, a set of physical resource blocks, a single beam, or a set of beams.
  • ABS Almost Blank Subframe
  • the transmission power of a specific resource generally has eight file values, which are specifically determined by the pre-configured configuration parameters Pa and Pb.
  • Pb is set for a cell (cel l-specific)
  • Pa is set for a UE-specific cell device.
  • the configuration of the configuration parameter of the transmit power of the specific resource may be as follows: Shown as follows:
  • the specific resource is a single ABS a subframe or a group of ABS subframes, specifically, a single ABS or a group of ABS subframes as a specific resource is preset by the second base station, for example, the second base station specifies one or a group of subframes as an ABS subframe, and the ABS sub-frame
  • the setting of the frame can be identified by the ABS subframe mode.
  • the ABS subframe pattern f (m) also identifies the ratio of the number of ABS subframes set by the second base station to the total number of subframes.
  • the ABS subframe mode includes 1 /8, 2/8 or 3/20 mode, among them,
  • the 1/8 mode means that the interference source cell base station sets one of the 8 subframes as the ABS subframe
  • the 2/8 mode refers to the interference source cell base station sets 2 of the 8 subframes as the ABS subframe.
  • the 3/20 mode means that the interference source cell base station sets 3 out of 20 subframes as ABS subframes.
  • the setting of the ABS subframe mode can be as follows:
  • the transmit power used on a single ABS or a group of ABSs see FIG. 2, a method for determining transmit power, including the following.
  • the first base station determines a second cell.
  • the first base station determines the second cell according to the measurement information of each neighboring cell reported by the user equipment served by the first cell, where the measurement information may include, but is not limited to, reference signal receiving power (RSRP). ) or Channel Quality Indicator (CQI).
  • RSRP reference signal receiving power
  • CQI Channel Quality Indicator
  • the first base station configures the user equipment served by the first cell to measure the RSRP of each neighboring cell, and the first base station receives each neighboring cell reported by the user equipment served by the first cell. After the first base station averages the RSRPs of the same neighboring cell reported by the user equipment served by the first cell, the average RSRP of each neighboring cell is obtained, and the neighboring cell with the largest average RSRP is taken as the first Two cells.
  • the first base station may configure the user equipment served by the first cell to measure the CQI of the neighboring cell, and then the first base station may calculate the average RSRP of each neighboring cell.
  • the average RSRP of the neighboring cell reported by the user equipment that is reported by the user equipment that is smaller than the first predetermined value is calculated by using the average RSRP of the neighboring cell to reduce the calculation. The amount is increased to determine the efficiency of the second cell.
  • the first base station configures the user equipment served by the first cell to measure the RSRP of each neighboring cell, and the first base station receives the RSRP reported by the user equipment served by the first cell.
  • the neighboring cell of the second predetermined value; the first base station then counts the probability of occurrence of each neighboring cell reported by the user equipment served by the first cell, and uses the neighboring cell with the highest probability of occurrence as the second cell.
  • the first base station may configure the user equipment served by the first cell to measure the CQI of the neighboring cell, and then, when the first base station counts the number of occurrences of each neighboring cell, Only the neighboring cells reported by the user equipment that the CQI served by the first cell is smaller than the first predetermined value are counted, so as to reduce statistics and improve the efficiency of determining the second cell.
  • the first base station may configure the user equipment served by the first cell to measure and report the CQI of the neighboring cell, and determine the second cell according to the CQI reported by the user equipment, and determine the specific manner. The method for determining the second cell according to the RSRP reported by the user equipment served by the first cell is the same, and details are not described herein again.
  • the first base station calculates the capacity information of the first cell corresponding to the preset transmit power of the second cell in the specific resource of the second cell, where the capacity information may include, but is not limited to, capacity or spectrum efficiency.
  • the preset transmit power of the second base station on the specific resource of the second cell may be: when establishing the X2 interface between the first base station and the second base station, the first base station and the second base station are established by The X2 interface pre-agreed the transmit power of the second base station on a particular resource of the second cell.
  • the preset transmit power of the second base station on the specific resource of the second cell may be the transmit power of the second base station set by the first base station on the specific resource of the second cell.
  • the calculating, by the first base station, the capacity information of the first cell corresponding to the preset transmit power of the second cell in the second cell may include: the local cell and the phase reported by the user equipment served by the first cell
  • the measurement information of the neighboring cell is used to calculate the first cell capacity information corresponding to the preset transmit power of the second cell in the specific resource of the second cell, where the measurement information may include, but is not limited to, RSRP or CQI.
  • the capacity information of the first cell is also multiple, and the second base station is in the second cell.
  • the preset transmit powers on a particular resource correspond one-to-one.
  • the first base station may adopt the measurement information of the local cell and the neighboring cell reported by the user equipment served by the first cell.
  • the following calculation manner is used to calculate the capacity information of the first cell that corresponds to the preset transmit power of the plurality of second base stations on the specific resources of the second cell:
  • Manner 1 If the first base station uses a Round Robin (RR) scheduling mode, each user equipment served by the first cell is scheduled to be a specific resource of the first cell, where the specific resource is a single ABS or a Group ABS. And determining, according to the preset, the transmit power of the second base station on the specific resource of the second cell as the current power, and calculating the capacity of the first cell corresponding to the current power, specifically: according to each service served by the first cell The measurement information of the local cell and the neighboring cell reported by the user equipment is used to calculate the capacity that each user equipment is scheduled to be sent to the specific resource of the first cell; and then, according to each user equipment, the specific resource is allocated to the first cell. The acquired capacity calculates the capacity of the first cell corresponding to the current power.
  • RR Round Robin
  • calculating the capacity that each user equipment is scheduled to be sent to the specific resource of the first cell includes: When the user equipment UEn served by the first cell is scheduled on a specific resource of the first cell, that is, the first base station uses the specific resource in the first cell to send a downlink signal to the UEn.
  • the capacity obtained by the UEn being scheduled to a specific resource of the first cell may be calculated by using Equation 1 shown below.
  • the second cell determined in step 201 is a strong interferer cell of the first cell, and in specific implementation
  • the first cell may be weakly interfered by other cells in addition to the strong interference of the second cell.
  • the other cells except the second cell received by the first cell are generally referred to as a third cell, and the present invention is implemented.
  • the interference of the third cell is also considered.
  • the first base station calculates the capacity information of the first cell corresponding to the transmit power preset by the second base station on the specific resource of the second cell
  • the first base station acquires the information of the ABS subframe set by the second base station,
  • the information of the ABS subframe set by the serving base station of each cell in the third cell is obtained, where the information of the ABS subframe includes but is not limited to the ABS subframe mode.
  • the first base station receives the information of the ABS subframe (ABS Information) sent by the second base station by using the X2 interface established with the second base station, and respectively passes the X2 established between the serving base stations of the cells in the third cell.
  • the interface receives the information of the ABS subframe sent by the serving base station of each cell in the third cell.
  • Equation 1 The following describes the items in Equation 1 in detail:
  • C s (m, X) is the capacity acquired by the UEn to the specific resource of the first cell;
  • RSRPi is the RSRP of the local cell (ie, the first cell) reported by the UEn;
  • the RSRP k is the neighboring cell reported by the UEn, specifically The RSRP of the Kth cell in the third cell;
  • the RSRP m is the neighboring cell reported by the UEn, specifically the RSRP of the second cell;
  • Xk is the serving base station of the Kth cell in the third cell in the Kth cell
  • the first base station determines, according to the previously acquired ABS subframe information set by the second base station and the ABS subframe information set by the serving base station of the Kth cell, whether the specific resource set by the second base station is Is an ABS subframe set by the serving base station of the Kth cell;
  • the first base station may receive the X k sent by the serving base station of the Kth cell through an X2 interface established with the serving base station of the Kth cell;
  • the X in the formula 1 is the ratio of the current power to the transmit power of the RS transmitted by the second base station, wherein the current power is one of the eight gear values configurable by the transmit power introduced above.
  • the first base station calculates, according to the formula 1, the capacity acquired by each user equipment served by the first cell on the specific resource scheduled to the first cell, and acquires each user equipment on the specific resource of the first cell.
  • the capacity is added and averaged to obtain the capacity of the first cell corresponding to the current power.
  • the capacity of the first cell corresponding to the current power may be calculated by using Equation 2 shown below.
  • C ' co (m, x) ⁇ I (m, x) Equation 2
  • C (m, x) is the capacity of the first cell corresponding to the current power
  • N is the total number of user equipment served by the first base station, due to the user served by the base station The device is registered at the base station, so the first base station can know the total number of user equipments served by the first cell
  • C s (m, x) is the specific resource that the user equipment served by the first cell is scheduled to the first cell. The first cell capacity obtained at the time.
  • the method for calculating the capacity information of the first cell corresponding to the preset transmit power of the second cell in the specific resource of the second cell includes: directly according to the first cell
  • the CQI reported by the serving user equipment on the specific resource of the first cell finds the spectrum efficiency corresponding to the reported CQI.
  • the spectrum efficiency corresponding to the CQI reported by all user equipments is processed, for example, averaged or weighted averaged, etc., to obtain the processed first cell spectral efficiency, as the preset transmit power with the second base station on the specific resource of the second cell.
  • Corresponding first capacity information of the first cell is performed directly according to the first cell
  • the CQI reported by the serving user equipment on the specific resource of the first cell finds the spectrum efficiency corresponding to the reported CQI.
  • the spectrum efficiency corresponding to the CQI reported by all user equipments is processed, for example, averaged or weighted averaged, etc., to obtain the processed first cell spectral efficiency, as the preset transmit power with the second base station on the specific
  • Manner 2 If the first base station uses a Round Robin (RR) scheduling mode to schedule the user equipment served by the first cell to a specific resource or a non-specific resource of the first cell, the specific resource is a single ABS. Or a group of ABSs, the non-specific resources being a single non-ABS or a group of non-ABSs. Then, the plurality of transmit powers preset on the specific resources of the second cell and the second base station are used as the current power, and the capacity of the first cell corresponding to the current power is calculated, which includes: according to the specific resources scheduled to the first cell.
  • RR Round Robin
  • the measurement information of the local cell and the neighboring cell reported by each user equipment is calculated, and the capacity acquired by each user equipment scheduled to the specific resource of the first cell on the specific resource of the first cell is calculated;
  • the measurement information of the local cell and the neighboring cell reported by each user equipment on the non-specific resource of the first cell is calculated, and the non-specificity of each user equipment scheduled to the non-specific resource of the first cell in the first cell is calculated.
  • Capacity acquired on the resource; then, according to the capacity acquired by each user equipment scheduled to the specific resource on the first cell on the specific resource of the first cell, and each user scheduled to the non-specific resource of the first cell The capacity acquired by the device on the non-specific resource of the first cell is calculated to be the first corresponding to the current power. Capacity of the region.
  • the capacity acquired by each user equipment scheduled to be sent to the non-specific resource of the first cell on the non-specific resource of the first cell may be as follows: The formula 3 shown is calculated.
  • Equation 3 ⁇ ) the capacity of the UEn that is scheduled to be sent to the non-specific resource of the first cell on the non-specific resource; the RSRPi is the local cell that is reported to the user equipment on the non-specific resource of the first cell, that is, the RSRP of the first cell.
  • the RSRP k is a neighboring cell that is reported to the user equipment on the non-specific resource of the first cell, and is specifically the RSRP of the Kth cell in the third cell.
  • the first base station may calculate, according to Equation 1 and Equation 2, the cell capacity acquired by each user equipment on a specific resource of the first cell on a specific resource of the first cell, And the cell capacity acquired by each user equipment scheduled to the non-specific resource of the first cell on the non-specific resource of the first cell is processed by using Equation 4 shown below to obtain the capacity of the first cell corresponding to the current transmit power. .
  • C (m, x) is the capacity of the first cell corresponding to the current power
  • C s (m, x) is the user scheduled to the specific resource of the first cell
  • ⁇ ) the capacity acquired by the user equipment on the non-specific resource scheduled to the first cell on the non-specific resource of the first cell
  • ⁇ the total number of user equipment served by the first base station, due to the user equipment served by the base station
  • the base station is registered, so the first base station can know the total number of user equipments served by the first cell
  • f (m) in Equation 4 is the ABS mode set by the second base station.
  • the method for calculating the capacity information of the first cell corresponding to the preset transmit power of the second cell in the specific resource of the second cell includes: directly according to the first cell
  • the CQI reported by the serving user equipment on the specific resource of the first cell finds the spectrum efficiency corresponding to the reported CQI, and then processes the spectrum efficiency corresponding to the CQI reported by all user equipments, for example, average or weighted average, etc.
  • the subsequent first cell spectrum efficiency is the capacity information of the first cell corresponding to the preset transmit power of the second base station on the specific resource of the second cell.
  • Manner 3 If the first base station adopts the RR scheduling mode, it will be located in the Cell Extension (CRE). The user equipment of the area is scheduled to be on the specific resource of the first cell, and the user equipments in other areas are scheduled in the RR mode on the non-specific resources of the first cell, where the specific resource is a single ABS or a group of ABSs. The non-specific resource is a single non-ABS or a group of non-ABS. And the power of the first cell corresponding to the current power is calculated by using the preset transmit power of the second base station on the specific resource of the second cell as the current power, and the method includes: scheduling, according to the specific resource of the first cell.
  • CRE Cell Extension
  • the measurement information of the local cell and the neighboring cell reported by each user equipment is calculated, and the capacity acquired by each user equipment scheduled to the specific resource of the first cell on the specific resource of the first cell is calculated;
  • the measurement information of the local cell and the neighboring cell reported by each user equipment on the non-specific resource of the first cell is calculated, and the non-specific resource of each user equipment scheduled to the non-specific resource of the first cell in the first cell is calculated.
  • Capacity acquired above; then, according to the capacity acquired by each user equipment scheduled to the specific resource of the first cell on the specific resource of the first cell, and each of the non-specific resources scheduled to the first cell The capacity acquired by the user equipment on the non-specific resource of the first cell, and the first cell corresponding to the current power is calculated. Capacity.
  • Equation 1 the calculation manner of calculating the capacity acquired by each user equipment scheduled to the specific resource of the first cell on the specific resource of the first cell is shown in Equation 1. I won't go into details here.
  • the calculation manner of calculating the capacity acquired by each user equipment scheduled to the non-specific resource of the first cell on the non-specific resource of the first cell is shown. Formula 3, which will not be repeated here.
  • the first base station may allocate the calculated capacity acquired by each user equipment on the specific resource of the first cell to the specific resource of the first cell, and schedule the scheduling to the first cell.
  • the capacity acquired by each user equipment on the non-specific resource on the non-specific resource of the first cell is processed by Equation 5 as shown below, and the capacity of the first cell corresponding to the current power is obtained.
  • Equation 5 ⁇ 1 ⁇ ⁇ is the capacity of the first cell corresponding to the current power; C s (m, x) is the user equipment scheduled to the specific resource of the first cell in the first cell The capacity acquired on a particular resource; ⁇ ) the capacity acquired by the user equipment on the non-specific resource scheduled to the first cell on the non-specific resource of the first cell; ⁇ the total number of user equipment served by the first base station, due to the user equipment served by the base station The base station is registered, so the first base station can know the total number of user equipments served by the first cell; f (m) is the ABS mode set by the second base station; L is located in the CRE extension area of the first cell. The number of user devices.
  • the method for calculating the capacity information of the first cell corresponding to the preset transmit power of the second cell in the specific resource of the second cell includes: directly according to the first cell Service user setting
  • the CQI reported on the specific resource of the first cell finds the spectrum efficiency corresponding to the reported CQI, and then processes the spectrum efficiency corresponding to the CQI reported by all user equipments, for example, average or weighted average, etc., and obtains the processed
  • the spectrum efficiency of a cell is the capacity information of the first cell corresponding to the preset transmit power of the second base station on the specific resource of the second cell.
  • the first base station sends the capacity information of the first cell corresponding to the preset transmit power of the second base station on the specific resource of the second cell to the power determining device.
  • the power determining device may be specifically a second base station or a control node.
  • the first base station sends only the calculated capacity information of the first cell to the power determining device.
  • the first base station and the power determining device do not pre-agreed the transmit power preset by the second base station on the specific resource of the second cell, where the first base station is preset on the specific resource of the second cell with the second base station.
  • the capacity information of the first cell corresponding to the transmit power is sent to the power determining device
  • the information about the transmit power preset by the second base station corresponding to the capacity information of the first cell on the specific resource of the second cell is sent to the power determination. device.
  • the information about the transmit power preset by the second base station on the specific resource of the second cell may include, but is not limited to, the transmit power preset by the second base station on the specific resource of the second cell, or the second base station is in the second Level information of the preset transmit power on a specific resource of the cell.
  • the power determining device is a control node
  • the first base station sends the capacity information of the first cell to the control node
  • the identifier of the second base station is sent to the control node, so that the control node determines the received The transmit power used by the second base station identified by the identifier to be used on a specific resource of the second cell.
  • the power determining device is the second base station
  • the first base station by using the X2 interface established with the second base station, the capacity information of the first cell or/and the first cell
  • the information about the preset transmit power of the second base station corresponding to the capacity information on the specific resource of the second cell is sent to the second base station;
  • the power determining device is a control node, for example: if the control node is the MME, the first base station, by using the S1 interface established with the MME, the capacity information of the first cell or/and the capacity information of the first cell The information about the preset transmit power of the second base station on the specific resource of the second cell is sent to the control node; if the control node is 0AM, the first base station passes the southbound interface Itf-S established with the 0AM, and the first base station The capacity information of a cell or/and the information of the transmit power preset by the second base station corresponding to the capacity information of the first cell on the specific resource of the second cell is sent to the control node.
  • the power determining device After receiving the capacity information of the first cell sent by the first base station, the power determining device acquires the capacity information of the second cell, where the capacity information of the second cell is preset on the specific resource of the second cell by the second base station.
  • the transmit power corresponds.
  • acquiring the capacity information of the second cell may include: If the power determining device is the second base station, and the scenario in which the first base station and the power determining device do not pre-agreed the transmit power preset by the second base station on the specific resource of the second cell, the second base station according to the second cell The preset transmit power on the specific resource, the measurement information of the local cell and the neighboring cell reported by the user equipment served by the second cell, and the corresponding transmit power corresponding to the second base station on the specific resource of the second cell is calculated. Capacity information of the second cell.
  • the transmit power preset by the second base station on the specific resource of the second cell is the transmit power of the second base station pre-agreed by the first base station and the second base station on the specific resource of the second cell.
  • the second base station receives the The information about the transmit power preset by the second base station on the specific resource of the second cell corresponding to the capacity information of the first cell, and then the second base station according to the preset transmit power on the specific resource of the second cell,
  • the measurement information of the local cell and the neighboring cell reported by the user equipment served by the second cell calculates the capacity information of the second cell corresponding to the preset transmit power of the second base station on the specific resource of the second cell.
  • the preset transmit power of the second base station on the specific resource of the second cell is the received transmit power preset by the second base station corresponding to the capacity information of the first cell on the specific resource of the second cell. The power corresponding to the information.
  • the control node receives the capacity information of the second cell sent by the second base station. If the power determining device is a control node, and the scenario in which the first base station and the power determining device do not pre-agreed the transmit power preset by the second base station on the specific resource of the second cell, the control node receives the second sent by the second base station. When the capacity information of the cell is received, the information about the transmit power preset by the second base station corresponding to the capacity information of the second cell on the specific resource of the second cell is also received.
  • the power determining device determines, according to the capacity information of the first cell and the capacity information of the second cell, the transmit power used by the second base station on the specific resource of the second cell.
  • the capacity information of the first cell is multiple and the second base station is in the second cell.
  • the preset transmit powers of the specific resources are in one-to-one correspondence, and the capacity information of the second cell is multiple and corresponds to the preset transmit power of the second base station on the specific resource of the second cell.
  • determining, according to the capacity information of the first cell and the capacity information of the second cell, the transmit power used by the second base station on the specific resource of the second cell includes:
  • the maximum total capacity information is selected from the information, and the power corresponding to the maximum total capacity information is used as the transmit power used by the second base station on the specific resource of the second cell.
  • the first base station calculates the transmit powers P1, P2, P3, and presets on the specific resources of the second cell with the second base station.
  • P4 - the corresponding first cell capacity is Cl, C2, C3 and C4;
  • the second base station calculates the transmit powers P1, P2, P3, and P4 preset on the specific resources of the second cell with the second base station, and the capacity of the corresponding second cell is CI ', C2', C3', and C4'. ;
  • the second base station calculates the transmit powers P1, P2, P3, and P4 preset on the specific resources of the second cell with the second base station, corresponding to the total capacity of the first cell and the second cell, C1+CI', C2+C2' , C3+ C3 ' and C4+C4';
  • the second base station selects a maximum total capacity among C1+C1', C2+C2', C3+C3' and C4+C4', such as C4+C4', then the power P4 corresponding to C4+C4' is the second base station.
  • the second cell as the interference source may cause strong interference to multiple different first cells. Then, based on the above description, each first base station will send one and the second.
  • the capacity information of the first cell corresponding to the preset transmit power of the base station on the specific resource of the second cell is sent to the power determining device, so that the power determining device receives the capacity information of the multiple first cells, and then the power determining device obtains
  • the capacity information of the second cell the capacity information of the second cell is corresponding to the preset transmit power of the second cell in the specific resource of the second cell, and is obtained according to the received capacity information of the multiple first cells.
  • the capacity information of the second cell determines the transmit power of the second base station on a specific resource of the second cell.
  • the power determining device determines, according to the received capacity information of the multiple first cells and the acquired capacity information of the second cell, the transmit power of the second base station on the specific resource of the second cell:
  • the power determining device determines total capacity information of the plurality of first cells according to the received capacity information of the plurality of first cells; and the power determining device calculates, according to the total capacity information of the multiple first cells and the capacity information of the second cell, Total capacity information of the first cell and the second cell;
  • the capacity information of the first cell is multiple and the preset transmit power of the second base station on the specific resource of the second cell is one.
  • the capacity information of the second cell is multiple and corresponds to the preset transmit power of the second cell in the specific resource of the second cell
  • the total capacity information of the multiple first cells is multiple and the second
  • the base station has a one-to-one correspondence between the preset transmit powers on the specific resources of the second cell, and multiple first
  • the total capacity information of the second cell and the second cell are in a one-to-one correspondence with the preset transmit power of the second cell on the specific resource of the second cell, and the maximum is selected from the calculated plurality of the total capacity information.
  • the total capacity information, the power corresponding to the maximum total capacity information is used as the transmit power used by the second base station on the specific resource of the second cell.
  • the total capacity information for the plurality of first and second cells may be calculated using Equation 6 as shown below.
  • C (m, X) J co ZC F (m, x) + L acm * C a (m, x) Equation 6
  • C ( m, x) is in the second cell with the second base station
  • Jf ⁇ is the load factor of the first cell
  • ⁇ cr°( m , x ) is the second base station
  • ⁇ , ⁇ ) is the second cell corresponding to the preset transmit power of the second base station on the specific resource of the second cell Capacity information
  • ⁇ is the load factor of the second cell.
  • the second base station when the first base station and the second base station establish an X2 connection, the load information of each other is exchanged, the second base station receives the load information sent by the first base station, and parses the load information to obtain the load of the first cell.
  • the factor, and the load factor of the second cell can be obtained from its own load information.
  • the specific resource is a single carrier or a group of carriers. Then, in a CA scenario, if the capacity information of the first cell is the first The capacity of the cell, the method of determining the transmit power is similar to the method of determining the transmit power in the elCIC scenario.
  • the first base station calculates, according to the measurement information of the local cell and the neighboring cell reported by the user equipment served by the first cell, that the second base station is preset on the specific resource of the second cell.
  • the manner in which the capacity information of the first cell corresponding to the transmit power is used is different from the mode adopted in the eCIC scenario, and is specifically described below.
  • the measurement information is taken as an example of the RSRP.
  • the first base station uses the Round Robin (RR) scheduling mode to schedule each user equipment served by the first cell to the specific resource.
  • RR Round Robin
  • the preset transmit powers corresponding to the second base station on the specific resources of the second cell are used as the current power, and the calculation corresponds to the current power.
  • the capacity of the first cell is calculated according to the measurement information of the local cell and the neighboring cell reported by each user equipment served by the first cell, respectively, and the capacity acquired by each user equipment on the specific resource of the first cell is calculated. Then, the first cell capacity corresponding to the current power is calculated according to the capacity acquired by each user equipment to be allocated to the specific resource of the first cell.
  • the capacity acquired by the UEn on the specific resource of the first cell can be calculated by Equation 7 shown below.
  • C frustrating(m, x) is the capacity acquired by the UEn to the specific resource of the first cell;
  • RSRPi is the local cell reported by the UEn, that is, the first cell RSRP;
  • RSRP k is the neighboring cell reported by UEn, specifically the RSRP of the Kth cell in the third cell;
  • RSRP m is the neighboring cell reported by UEn, specifically the RSRP of the second cell;
  • X is the current power relative to The ratio of the transmit power of the RS sent by the second base station, where the current power is one of the eight gear values that can be configured by the transmit power introduced above.
  • each user equipment served by the first cell is in the first cell.
  • the capacity acquired on the specific resource is added and averaged to obtain the capacity of the first cell corresponding to the current power.
  • the capacity of the first cell corresponding to the current power may be calculated by using Equation 8 as shown below.
  • C F (m, ⁇ ) ⁇ ⁇ C Intel (m, x) Equation 8
  • C (m, x) is the capacity of the first cell corresponding to the current power
  • N is served by the first base station
  • UEn schedules the capacity acquired on the specific resource of the first cell.
  • the method for calculating the capacity information of the first cell corresponding to the preset transmit power of the second cell in the specific resource of the second cell includes: directly according to the first cell
  • the CQI reported by the serving user equipment on the specific resource of the first cell finds the spectrum efficiency corresponding to the reported CQI, and then processes the spectrum efficiency corresponding to the CQI reported by all user equipments, for example, average or weighted average, etc.
  • the subsequent first cell spectrum efficiency is the capacity information of the first cell corresponding to the preset transmit power of the second base station on the specific resource of the second cell.
  • the first base station may send the calculated capacity information of the first cell corresponding to the preset transmit power of the second base station on the specific resource of the second cell to the power determining device, so that the power determining device receives the The capacity information of the first cell determines the transmit power of the second cell on the specific resource of the second cell.
  • a specific resource is a single physical resource block (PRB) or a group of physical resource blocks
  • the method for determining the transmit power is the same as the method for determining the transmit power in the CA scenario. It will not be repeated here.
  • the embodiment of the present invention provides the foregoing technical solution, by receiving the capacity information of the first cell sent by the first base station, and acquiring the capacity information of the second cell, and then, according to the capacity information of the first cell and the capacity information of the second cell.
  • the implementation of the technical solution for determining the transmit power used by the second base station on the specific resource of the second cell can ensure that the total capacity of the first cell and the second cell is maximized.
  • this embodiment provides a method for determining transmit power, including the following content.
  • the first base station sends the capacity information of the first cell to the second base station, where the capacity information of the first cell corresponds to a preset transmit power of the second base station on the specific resource of the second cell, where
  • the specific resource is a radio resource shared by the first cell and the second cell; the first capacity information is used by the second base station to determine a transmit power used on a specific resource of the second cell.
  • the method for the second base station to determine the transmit power used on the specific resource of the second cell may refer to the foregoing embodiment, and details are not described herein again.
  • the capacity information of the first cell may be included in load information (such as a Load Information message) sent by the first base station to the second base station.
  • load information such as a Load Information message
  • the foregoing 301 shown in FIG. 3 may further include:
  • the first base station receives the capacity request information sent by the second base station.
  • the foregoing 301 may be specifically: the first base station sends the capacity information of the first cell to the second base station according to the capacity request information.
  • the capacity request information may be included in a resource status request message (for example, a Resource Status Request message) sent by the second base station to the first base station; and the capacity information of the first cell may be included in the a resource status update message (for example, a Resource Status Update message) sent by the first base station to the second base station.
  • the first base station may be configured according to a preset transmit power of the second base station on a specific resource of the second cell, and the first cell and a neighboring cell reported by the user equipment.
  • the measurement information is calculated to obtain the capacity information of the first cell.
  • the first base station sends the capacity information of the first cell to the second base station, so that the second base station may determine, according to the capacity information of the first cell, the transmission used on the specific resource of the second cell.
  • the power guarantees the capacity of the first cell.
  • the other aspect of the present invention further provides a power determining apparatus.
  • the power determining apparatus may be specifically the second base station or the control node described in the method embodiment, and includes: a receiver 401 and a first processor. 402.
  • the receiver 401 is configured to receive, by the first base station, capacity information of the first cell, where the first cell is The capacity information is corresponding to the preset transmit power of the second base station on the specific resource of the second cell, where the specific resource is a radio resource shared by the first cell and the second cell; And determining, according to the capacity information of the first cell received by the receiver 401 and the capacity information of the second cell acquired by the first processor 402, the transmit power used by the second base station on the specific resource of the second cell.
  • the first processor 402 is specifically configured to calculate an average capacity of the first cell according to the capacity information of the first cell, and determine, according to the average capacity of the first cell, that the serving base station of the second cell is in the second The transmit power used on a particular resource of the cell.
  • the first processor 402 is specifically configured to determine, by the power determining device, that the average capacity of the first cell meets the maximum transmit power of the predetermined capacity threshold, and the maximum transmit power is used as the serving base station of the second cell on the specific resource of the second cell. The transmit power used.
  • the serving base station of the second cell presets multiple transmit powers on the specific resources of the second cell
  • the capacity information of the first cell is multiple and the service of the second cell
  • the base station has a one-to-one correspondence with the preset transmit power on the specific resources of the second cell.
  • the power determining device receives the capacity information of the first cell sent by the serving base station of the first cell, and determines the specificity of the serving base station of the second cell in the second cell according to the capacity information of the first cell.
  • the transmit power used in the resource can guarantee the capacity of the first cell (ie, the interfered cell).
  • the device shown in FIG. 4 further includes:
  • the second processor 403 is configured to acquire capacity information of the second cell, and determine, according to the capacity information of the first cell and the capacity information of the second cell, the transmit power used by the serving base station of the second cell on the specific resource of the second cell.
  • the capacity information of the second cell corresponds to a preset transmit power of the serving base station of the second cell on a specific resource of the second cell.
  • the receiver 401 is further configured to receive, by the first base station, a scenario in which the first base station and the power determining device do not pre-agreed the preset transmit power of the second base station on the specific resource of the second cell.
  • the receiver The 401 is further configured to receive, by the second base station, information about the transmit power preset by the second base station on the specific resource of the second cell, corresponding to the capacity information of the second cell.
  • the second processor 403 when the power determining device is the control node, the second processor 403 is specifically configured to receive the capacity information of the second cell sent by the second base station.
  • the second processor 403 is specifically configured to: according to the preset transmit power of the second base station on the specific resource of the second cell, and the user equipment served by the second cell The information is measured, and the capacity information of the second cell is calculated.
  • the second processor 403 shown in FIG. 5 in the embodiment of the present invention includes:
  • the calculating unit 4031 is configured to: when the second base station presets multiple transmit powers on the specific resources of the second cell, the capacity information of the first cell is multiple, and the second base station is on the specific resource of the second cell
  • the preset transmission power is in one-to-one correspondence, and the capacity information of the second cell is multiple and corresponding to the preset transmission power of the second cell in the specific resource of the second cell, according to the capacity information of the first cell and the first
  • the capacity information of the second cell is used to calculate the total capacity information of the first cell and the second cell, and the total capacity information is multiple and corresponds to the preset transmit power of the second base station on the specific resource of the second cell;
  • the determining unit 4032 is configured to select the largest total capacity information from the calculated total capacity information, and use the power corresponding to the largest total capacity information as the transmit power used by the second base station on the specific resource of the second cell.
  • the embodiment of the present invention provides the foregoing technical solution, by receiving the capacity information of the first cell sent by the first base station, and acquiring the capacity information of the second cell, and then, according to the capacity information of the first cell and the capacity information of the second cell.
  • the implementation of the technical solution for determining the transmit power used by the second base station on the specific resource of the second cell can ensure that the total capacity of the first cell and the second cell is maximized.
  • the base station is specifically the first base station in the foregoing method embodiment, and includes:
  • the transmitter 501 is configured to send, to the serving base station of the second cell, the capacity information of the first cell, where the capacity information of the first cell and the serving base station of the second cell are preset to be transmitted on the specific resource of the second cell.
  • the specific resource is a radio resource shared by the first cell and the second cell; the first capacity information is used by a serving base station of the second cell to determine a specificity of the second cell The transmit power used on the resource.
  • the capacity information of the first cell is included in load information sent by the serving base station of the first cell to the serving base station of the second cell.
  • the base station shown in FIG. 7 further includes:
  • the receiver 502 is configured to receive capacity request information sent by the serving base station of the second cell.
  • the transmitter 501 is specifically configured to send the capacity information of the first cell to the serving base station of the second cell according to the capacity request information.
  • the capacity request information is included in a resource status request message sent by the serving base station of the second cell to the serving base station of the first cell; the capacity information of the first cell is included in the serving base station of the first cell.
  • the base station may be configured to use, according to the second base station, a specific resource in the second cell
  • the preset transmit power, and the measurement information of the first cell and the neighboring cell reported by the user equipment, calculate the capacity information of the first cell.
  • the first base station sends the capacity information of the first cell to the second base station, so that the second base station may determine, according to the capacity information of the first cell, the transmission used on the specific resource of the second cell.
  • the power guarantees the capacity of the first cell.
  • an embodiment of the present invention further provides a system for determining transmit power.
  • the system includes: a first base station 601 and a power determining device 602.
  • the first base station 601 is configured to send the capacity information of the first cell to the power determining device 602, where the capacity information of the first cell corresponds to the preset transmit power of the second base station on the specific resource of the second cell, and the specific resource is the first resource.
  • the power determining device 602 is configured to receive the capacity information of the first cell sent by the first base station, and then determine the specificity of the second cell in the second cell according to the capacity information of the first cell. The transmit power used on the resource.
  • the power determining device receives the capacity information of the first cell sent by the serving base station of the first cell, and determines the specificity of the serving base station of the second cell in the second cell according to the capacity information of the first cell.
  • the transmit power used in the resource can guarantee the capacity of the first cell (ie, the interfered cell).
  • the power determining device 602 is further configured to acquire the capacity information of the second cell, where the capacity information of the second cell and the serving base station of the second cell preset the transmit power on the specific resource of the second cell.
  • the power determining device 602 is further configured to acquire the capacity information of the second cell, where the capacity information of the second cell and the serving base station of the second cell preset the transmit power on the specific resource of the second cell.
  • the power determining device 602 is further configured to acquire the capacity information of the second cell, where the capacity information of the second cell and the serving base station of the second cell preset the transmit power on the specific resource of the second cell.
  • the power determining device 602 is further configured to acquire the capacity information of the second cell, where the capacity information of the second cell and the serving base station of the second cell preset the transmit power on the specific resource of the second cell.
  • the power determining device 602 is further configured to acquire the capacity information of the second cell, where the capacity information of the second cell and the serving base station of the second cell preset the transmit power
  • the power determining device 602 may be specifically the second base station or the control node in the method embodiment.
  • the detailed structure of 601 please refer to the base stations shown in FIG. 7 and FIG. 8, and details are not described herein again.

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Abstract

本发明公开了一种确定发射功率的方法和设备，属于通信技术领域。所述方法包括：功率确定设备接收第一小区的服务基站发送的第一小区的容量信息，并根据第一小区的容量信息确定第二小区的服务基站在第二小区的特定资源上采用的发射功率。通过上述技术方案，可以保证第一小区的容量。

Description

确定发射功率的方法和设备 本申请要求于 2012年 03月 21 日提交中国专利局、 申请号为 201210076286. 2、 发明名 称为 "确定发射功率的方法和设备" 的中国专利申请的优先权， 其全部内容通过引用结合在 本申请中。
技术领域
本发明涉及通信技术领域， 特别涉及确定发射功率的方法和设备。 背景技术
无线异构网络（Heterogeneous Network, 简称： HetNet)—般由宏小区（Macro cel l)、 微 微蜂窝小区（Pico cel l)和家庭 （Femto ) 小区等多种不同类型的网络组成。 HetNet网络内的 不同小区可以共用相同的无线资源， 然而， 当不同小区在使用相同的无线资源向各自所服务 的用户设备 (User Equipment, 简称： UE)发送下行信号时， 不同小区之间可能会产生信号干 扰， 降低用户体验。
干扰源小区 (Aggressor Cel l)的服务基站在所述相同的无线资源上传输下行信号时， 在 所述相同的无线资源上采用的发射功率将会影响干扰源小区和受干扰小区 （Victim Cel l ) 的 小区容量。具体地， 当干扰源小区以较小发射功率在所述相同的无线资源上传输下行信号时， 干扰源小区以牺牲自身容量的方式来换取受干扰小区容量的提升； 反之， 当干扰源小区以较 大发射功率在所述相同的无线资源上传输下行信号时， 干扰源小区以牺牲受干扰小区容量的 方式来换取自身容量的提升。 目前还没有一个有效的方案可以合理的设置干扰源小区的服务 基站在所述相同的无线资源上采用的发射功率， 以保证受干扰小区和干扰源小区的小区容量 达到合理的折衷。 发明内容
本发明一方面提供一种确定发射功率的方法， 包括： 功率确定设备接收第一小区的服务 基站发送的所述第一小区的容量信息， 所述第一小区的容量信息与第二小区的服务基站在所 述第二小区的特定资源上预设的发射功率相对应， 所述特定资源为所述第一小区和所述第二 小区共用的无线资源； 所述功率确定设备根据所述第一小区的容量信息确定所述第二小区的 服务基站在所述第二小区的特定资源上采用的发射功率。
本发明另一方面提供一种功率确定设备， 包括： 接收器和第一处理器； 所述接收器， 用 于接收第一小区的服务基站发送的所述第一小区的容量信息， 所述第一小区的容量信息与第 二小区的服务基站在所述第二小区的特定资源上预设的发射功率相对应， 所述特定资源为所 述第一小区和所述第二小区共用的无线资源； 所述第一处理器， 用于根据所述接收器接收到 的第一小区的容量信息确定所述第二小区的服务基站在所述第二小区的特定资源上采用的发 射功率。
本发明再一方面提供一种确定发射功率的方法， 包括： 第一小区的服务基站向第二小区 的服务基站发送的第一小区的容量信息， 所述第一小区的容量信息与第二小区的服务基站在 所述第二小区的特定资源上预设的发射功率相对应， 所述特定资源为所述第一小区和所述第 二小区共用的无线资源； 所述第一容量信息用于所述第二小区的服务基站确定在所述第二小 区的特定资源上采用的发射功率。
本发明实施例另一方面还提供一种基站， 包括。 发送器， 用于向第二小区的服务基站发 送的第一小区的容量信息， 所述第一小区的容量信息与第二小区的服务基站在所述第二小区 的特定资源上预设的发射功率相对应， 所述特定资源为所述第一小区和所述第二小区共用的 无线资源； 所述第一容量信息用于所述第二小区的服务基站确定在所述第二小区的特定资源 上采用的发射功率。
本发明提供的上述技术方案， 功率确定设备通过接收第一小区的服务基站发送的第一小 区的容量信息， 并根据该第一小区的容量信息确定第二小区的服务基站在第二小区的特定资 源上采用的发射功率， 可以保证第一小区 （即受干扰小区） 的容量。 附图说明
为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例描述中所需要使用的附 图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明的一些实施例， 对于本领域 普通技术人员来讲， 在不付出创造性劳动的前提下， 还可以根据这些附图获得其他的附图。
图 1是本发明具体实施例中提供的一种确定发射功率的方法流程示意图；
图 2是本发明具体实施例中提供的一种确定发射功率的方法流程示意图；
图 3是本发明具体实施例中提供的一种确定发射功率的方法流程示意图；
图 4是本发明具体实施例中提供的一种功率确定设备的装置示意框图；
图 5是本发明具体实施例中提供的一种功率确定设备的装置示意框图；
图 6是本发明具体实施例中提供的一种功率确定设备的装置示意框图；
图 7是本发明具体实施例中提供的一种基站的装置示意框图； 图 8是本发明具体实施例中提供的一种基站的装置示意框图；
图 9是本发明具体实施例中提供的一种确定发射功率的系统示意图。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明实施方式作进 一步地详细描述。
参见图 1， 本实施例提供一种确定发射功率的方法， 包括以下内容。
101， 功率确定设备接收第一小区的服务基站发送的第一小区的容量信息， 其中， 所述第 一小区的容量信息与第二小区的服务基站在第二小区的特定资源上预设的发射功率相对应， 所述特定资源为第一小区和第二小区共用的无线资源。
103，功率确定设备根据所述第一小区的容量信息确定第二小区的服务基站在第二小区的 特定资源上采用的发射功率。
本实施例提供的上述技术方案， 功率确定设备通过接收第一小区的服务基站发送的第一 小区的容量信息， 并根据第一小区的容量信息确定第二小区的服务基站在第二小区的特定资 源上采用的发射功率， 可以保证第一小区的容量。
本发明实施例中， 将受干扰小区称为第一小区， 干扰源小区称为第二小区， 将第一小区 和第二小区共用的无线资源称为特定资源。 以下各实施例中， 可以将第一小区的服务基站简 称为第一基站， 将第二小区的服务基站简称为第二基站。
具体地， 上述 103中功率确定设备根据第一小区的容量信息确定第二小区的服务基站在 第二小区的特定资源上采用的发射功率， 包括： 功率确定设备根据所述第一小区的容量信息 计算第一小区的平均容量， 确定第二小区的服务基站在所述第二小区的特定资源上采用的发 射功率。 更具体地， 功率确定设备确定第二小区的服务基站在所述第二小区的特定资源上采 用的发射功率， 包括： 功率确定设备确定所述第一小区的平均容量满足预定容量门限的最大 发射功率， 并将所述最大发射功率作为所述第二小区的服务基站在第二小区的特定资源上采 用的发射功率。
在具体实现过程中，假设功率确定设备接收到 N个第一基站发送的第一小区的容量信息， 同时假设第二基站在第二小区的特定资源上预设的发射功率为 Pl、 P2、 P3和 P4。 例如，
1号第一基站计算得到与第二基站在第二小区的特定资源上预设的发射功率 Pl、 P2、 P3 和 P4一一对应的第一小区的容量为 CI (1)、 C2 (l)、 C3 (1 P C4 (1) ;
2号第一基站计算得到与第二基站在第二小区的特定资源上预设的发射功率 Pl、 P2、 P3和
P4一一对应的第二小区的容量为 CI (2)、 C2 (2)、 C3 (2)和 C4 (2) ; N号第一基站计算得到与第二基站在第二小区的特定资源上预设的发射功率 P l、 P2、 P3和 P4——对应的第二小区的容量为 CI (N)、 C2 (N)、 C3 (N)和 C4 (N) ;
功率确定设备计算第二基站在第二小区的特定资源上预设的发射功率 P l、 P2、 P3和 ?4所 分别对应的 N个第一小区的平均容量， 针对 P l， N个第一小区的总容量为：
Figure imgf000006_0001
其中， Lk是第 k号第一小区的负载因子。 在具体实现过程中， 第一基站和第二基站在建 立 X2连接时， 交互彼此的负载信息， 第二基站接收到第一基站发送的负载信息， 并解析所述 负载信息得到第一小区的负载因子。
其余 P2、 P3和 P4对应的 N个第一小区的总容量的计算以此类推。
功率确定设备确定使得 N个第一小区平均容量满足预定容量门限 （Cthresho l d ) 的最大 发射功率， 作为所述第二小区的服务基站在第二小区的特定资源上采用的发射功率。 例如， 假设 P 1〈P2〈P3〈P4，且 P I和 P2对应的 N个第一小区平均容量均满足预定容量门限 Cthresho l d, 则功率设备优先选择 P2 作为所述第二小区的服务基站在第二小区的特定资源上采用的发射 功率。 即在满足 N个第一小区平均容量门限的同时， 较大的发射功率可以使得第二小区的容 量较大。
上述实施例中，功率确定设备通过接收第一小区的服务基站发送的第一小区的容量信息， 并根据所述第一小区的容量信息确定第二小区的服务基站在第二小区的特定资源上采用的发 射功率， 使第一小区平均容量大于一定容量门限， 进而保证了第一小区的容量。
作为一个可选实施例， 上述方法实施例中还可包括： 102， 功率确定设备获取所述第二小 区的容量信息， 其中所述第二小区的容量信息与所述第二小区的服务基站在所述第二小区的 特定资源上预设的发射功率相对应。
上述 101和 102可同时执行， 或者执行顺序不分先后。
此时， 上述 103可以为：
103 ' ，功率确定设备根据所述第一小区的容量信息和所述第二小区的容量信息确定所述 第二小区的服务基站在所述第二小区的特定资源上采用的发射功率。
通过上述可选实施例， 可以保证第一小区和第二小区的总容量可以最大化。
在具体实现过程中， 上述可选实施例的方法， 具体包括： 第一基站向第二基站或者控制 节点发送第一小区的容量信息， 第一小区的容量信息与第二基站在所述第二小区的特定资源 上预设的发射功率相对应； 第二基站或者控制节点接收到第一小区的容量信息后， 获取第二 小区的容量信息， 所述第二小区的容量信息也与第二基站在所述第二小区的特定资源上预设 的发射功率相对应， 之后， 第二基站或者控制节点根据第一小区的容量信息及第二小区的容 量信息来确定第二基站在第二小区的特定资源上采用的发射功率， 以保证第一小区和第二小 区的总容量可以最大化。
本发明实施例中， 控制节点 （Control Node ) 包括但不限于核心网内的移动管理实体 ( Mobi l ity Management Entity , 匪 Ε )， 网管节点 0AM (Operation, Administration, Maintenance ) 或者运营支撑系统 （Operation Support System, OSS), 本发明实施例中， 控 制节点还可以为区别于第一基站和第二基站的基站。
本发明实施例中， 所述特定资源可以包括时域资源、 频域资源和空域资源中的一种或者 多种， 其中， 时域资源、 频域资源或者空域资源可以包括但不限于单一载波、 一组载波、 单 一几乎空子帧 （Almost Blank Subframe, ABS)、 一组 ABS、 单一物理资源块、 一组物理资源 块、 单一波束或者一组波束。
本发明实施例中， 特定资源的发射功率一般有 8个档值可以选择， 具体由预先配置的配 置参数 Pa和 Pb来共同确定。 其中， Pb是针对小区（cel l-specific)而设定的， Pa是针对小 区内用户设备 (UE-specific)而设定的， 具体地， 特定资源的发射功率的配置参数的配置情况 可以如下所示：
PDSCH-Conf igCommon:： =SEQUENCE {
referenceSignalpower INTEGER (-60. . 50) ,
p-b INTEGER (0. . 3) 〃配置参数 pb的配置
PDSCH-Conf igDedicated : =SEQUENCE {
p-a ENUMERATED {
db-6, db-4dot77, db_3， db_ldot77，
dbO, dbl, db2, db3} 〃配置参数 pa的配置， 共 8个档值 针对小区间增强型干扰协调 ( enhanced Inter-Cel l Interference Coordination, elCIC) 机制的应用场景， 所述特定资源为单一 ABS子帧或者一组 ABS子帧， 具体地， 作为特定资源 的单一 ABS或者一组 ABS子帧由第二基站预先设置， 例如， 第二基站指定一个或者一组子帧 作为 ABS子帧， ABS子帧的设置情况可以由 ABS子帧模式来标识。
本发明实施例中， ABS子帧模式 (ABS Pattern) f (m)还标识出了第二基站所设置的 ABS 子帧的个数占总子帧数的比例， 例如， ABS子帧模式包括 1/8， 2/8或者 3/20等模式， 其中， 1/8模式是指干扰源小区基站将 8个子帧中的一个设置为 ABS子帧， 2/8模式是指干扰源小区 基站将 8个子帧中的 2个设置为 ABS子帧， 同样的， 3/20模式是指干扰源小区基站将 20个 子帧中的 3个设置为 ABS子帧。 具体地， ABS子帧模式的设置情况可以如下所示：
FDD patterns；
(1/8, 1， ABS) [10000000, ] 〃1为 ABS子帧， 0为非 ABS子帧
( 2/8, 2, ABS) [11000000, ] 〃1为 ABS子帧， 0为非 ABS子帧
(3/20, 1， MBSF) [1000010000 1000000000] //1为 ABS子帧， 0为非 ABS子帧 那么，为了保证第一小区和第二小区的总容量可以最大化，需要确定第二基站在单一 ABS 或者一组 ABS上采用的发射功率， 具体参见图 2， 一种确定发射功率的方法， 包括以下内容。
201， 第一基站确定第二小区。
具体地， 第一基站根据第一小区所服务的用户设备上报的各相邻小区的测量信息来确定 第二小区，其中，测量信息可以包括但不限于参考信号接收功率（Reference Signal Receiving Power, RSRP) 或者信道质量指标 (Channel Quality Indicator, CQI )。
本发明实施例在具体实现时， 第一基站配置第一小区所服务的用户设备分别对各相邻小 区的 RSRP进行测量； 第一基站接收第一小区所服务的用户设备上报的各相邻小区的 RSRP; 之后，第一基站分别将第一小区所服务的用户设备上报的同一相邻小区的各 RSRP进行平均处 理， 得到各相邻小区的平均 RSRP, 将平均 RSRP最大的相邻小区作为第二小区。
另外， 本发明实施例在具体实现时， 第一基站可以配置第一小区所服务的用户设备对相 邻小区的 CQI进行测量， 那么， 第一基站在计算各相邻小区的平均 RSRP时， 可以仅将第一小 区所服务的信道质量指标 （Channel Quality Indicator, CQI ) 小于第一预定值的用户设备 上报的同一相邻小区的 RSRP进行平均计算， 得到各相邻小区的平均 RSRP, 以减少计算量， 提高确定第二小区的效率。
或者， 本发明实施例在具体实现时， 第一基站配置第一小区所服务的用户设备分别对各 相邻小区的 RSRP进行测量； 第一基站接收第一小区所服务的用户设备上报的 RSRP大于第二 预定值的相邻小区； 之后， 第一基站统计第一小区所服务的用户设备上报的各相邻小区的出 现概率， 并将出现概率最大的相邻小区作为第二小区。
另外， 本发明实施例在具体实现时， 第一基站可以配置第一小区所服务的用户设备对相 邻小区的 CQI进行测量， 那么， 第一基站在统计各相邻小区出现的次数时， 可以仅统计第一 小区所服务的 CQI小于第一预定值的用户设备上报的相邻小区， 以减少统计量， 提高确定第 二小区的效率。 当然， 本发明实施例在具体实现时， 第一基站可以配置第一小区所服务的用户设备对相 邻小区的 CQI进行测量并上报， 并根据用户设备上报的 CQI确定第二小区， 具体确定方式与 根据第一小区所服务的用户设备上报的 RSRP确定第二小区的方法相同， 此处就不再赘述。
202，第一基站计算与第二基站在第二小区的特定资源上预设的发射功率对应的第一小区 的容量信息， 其中， 所述容量信息可以包括但不限于容量或者频谱效率。
本发明实施例中， 第二基站在第二小区的特定资源上预设的发射功率可以是： 在建立第 一基站和第二基站间的 X2接口时， 第一基站和第二基站通过所建立的 X2接口预先商定的第 二基站在第二小区的特定资源上的发射功率。
另外， 本法实施例中， 第二基站在第二小区的特定资源上预设的发射功率可以是， 第一 基站设定的第二基站在第二小区的特定资源上的发射功率。
具体地， 第一基站计算与第二基站在第二小区的特定资源上预设的发射功率对应的第一 小区的容量信息可以包括： 根据第一小区所服务的用户设备上报的本小区及相邻小区的测量 信息， 计算得到与第二基站在第二小区的特定资源上预设的发射功率对应的第一小区容量信 息， 其中， 测量信息可以包括但不限于 RSRP或者 CQI。
本发明实施例中， 当第二基站在第二小区的特定资源上预设的发射功率为多个时， 所述 第一小区的容量信息也为多个且与第二基站在第二小区的特定资源上预设的发射功率一一对 应。
本发明实施例在具体实现时， 如果第一小区的容量信息为第一小区的容量， 则第一基站 可以根据第一小区所服务的用户设备上报的本小区及相邻小区的测量信息， 采用如下计算方 式来计算得到与多个第二基站在第二小区的特定资源上预设的发射功率一一对应的第一小区 的容量信息：
方式一、 如果第一基站采用轮询 （Round Robin, RR) 的调度方式分别将第一小区所服务 的各用户设备调度到第一小区的特定资源上， 所述特定资源为单一 ABS或者是一组 ABS。 则 依次将多个与第二基站在第二小区的特定资源上预设的发射功率作为当前功率， 计算与当前 功率对应的第一小区的容量， 具体包括： 根据第一小区所服务的每一个用户设备上报的本小 区及相邻小区的测量信息， 计算每一个用户设备被调度到第一小区的特定资源上所获取的容 量； 之后， 根据每一个用户设备调度到第一小区的特定资源上所获取的容量， 计算得到与当 前功率对应的第一小区的容量。
在一个可选实施例中， 以测量信息为 RSRP为例， 计算每一个用户设备被调度到第一小区 的特定资源上所获取的容量包括： 当第一小区所服务的用户设备 UEn被调度在第一小区的特定资源上， 也即， 第一基站在 第一小区采用所述特定资源来向 UEn发送下行信号。 作为一个可选实施例， 可以采用如下所 示的公式 1计算得到 UEn被调度到第一小区的特定资源上所获取的容量。
C s(m, x) = log2{l +— ^ } 公式 1
∑ xkRSRPk + x " RSRPm 在对公式 1内的各项进行说明之前， 需要说明的是： 步骤 201所确定的第二小区为第一 小区的强干扰源小区， 而在具体实现时， 第一小区除受到第二小区的强干扰外， 还可能受到 其他小区较弱的干扰， 这里， 将第一小区受到的除第二小区外的其他干扰小区通称为第三小 区， 本发明实施例中， 为了进一步保证第一小区的容量， 在考虑第二小区的强干扰外， 还考 虑第三小区的干扰。
进一步地， 第一基站计算与第二基站在第二小区的特定资源上预设的发射功率对应的第 一小区的容量信息之前， 第一基站获取第二基站所设置的 ABS子帧的信息， 并分别获取第三 小区内各小区的服务基站所设置的 ABS子帧的信息， 其中， ABS子帧的信息包括但不限于 ABS 子帧模式。
具体地，第一基站通过与第二基站间建立的 X2接口接收第二基站发送的 ABS子帧的信息 (ABS Information ) , 并分别通过与第三小区内各小区的服务基站间所建立的 X2接口接收第 三小区内各小区的服务基站所发送的 ABS子帧的信息。
下面详细介绍公式 1内的各项， 具体为：
C s(m, X)为 UEn调度到第一小区的特定资源上所获取的容量； RSRPi为 UEn上报的本小 区 （即第一小区） 的 RSRP; RSRPk为 UEn上报的相邻小区， 具体为第三小区内的第 K个小区 的 RSRP; RSRPm为 UEn上报的相邻小区， 具体为第二小区的 RSRP; Xk为第三小区内第 K个小 区的服务基站在第 K 个小区的特定资源上采用的发射功率相对于自身发送参考信号 (Reference Signal , RS)的发射功率的比值。
本发明实施例中， 第一基站根据预先所获取的第二基站所设置的 ABS子帧信息和第 K个 小区的服务基站所设置的 ABS子帧信息， 确定第二基站所设置的特定资源是否是第 K个小区 的服务基站所设置的 ABS子帧；
如果第二基站所设置的特定资源不是第 K个小区的服务基站所设置的 ABS子帧，则 Xk=l ; 如果第二基站所设置的特定资源是第 K个小区的服务基站所设置的 ABS子帧， 则第一基 站可以通过与第 K个小区的服务基站间建立的 X2接口，接收第 K个小区的服务基站所发送的 Xk; 公式 1内的 X为当前功率相对于第二基站发送 RS的发射功率的比例， 其中， 所述当前 功率为前面介绍的发射功率所可以配置的 8个档值中的一个。
第一基站分别根据公式 1计算得到第一小区所服务的每一个用户设备在调度到第一小区 的特定资源上所获取的容量后， 将每一个用户设备在第一小区的特定资源上所获取的容量进 行相加求均值， 得到当前功率对应的第一小区的容量。 在一个可选实施例中， 具体可以采用 如下所示的公式 2计算当前功率对应的第一小区的容量。
C 'co (m, x) =丄 I
Figure imgf000011_0001
(m, x) 公式 2 在公式 2中， C (m, x)为于当前功率对应的第一小区的容量； N为第一基站所服务用户 设备的总个数， 由于基站所服务的用户设备在基站有注册， 所以第一基站可以知道第一小区 所服务的用户设备的总个数； C s(m, x)为第一小区所服务的用户设备被调度到第一小区的 特定资源上时获取的第一小区容量。
本方式在具体实现时， 当测量信息为 CQI时， 计算与第二基站在第二小区的特定资源上 预设的发射功率对应的第一小区的容量信息的方法包括： 直接根据第一小区所服务的用户设 备在第一小区的特定资源上上报的 CQI， 找到所上报 CQI对应的频谱效率。 然后， 将所有用 户设备所上报 CQI对应的频谱效率进行处理， 例如平均或者加权平均等获得处理后的第一小 区频谱效率， 作为与第二基站在第二小区的特定资源上预设的发射功率对应的第一小区的容 量信息。 方式二、 如果第一基站采用轮询 （Round Robin, RR) 的调度方式将第一小区所服务的用 户设备调度到第一小区的特定资源或非特定资源上， 所述的特定资源为单一 ABS或者是一组 ABS, 所述非特定资源为单一的非 ABS或者为一组非 ABS。 则依次将多个与第二基站在第二小 区的特定资源上预设的发射功率作为当前功率， 计算与当前功率对应的第一小区的容量， 具 体包括： 根据调度到第一小区的特定资源上的每一个用户设备上报的本小区及相邻小区的测 量信息， 计算得到调度到第一小区的特定资源上的每一个用户设备在第一小区的特定资源上 所获取的容量； 并根据调度到第一小区的非特定资源上的每一个用户设备上报的本小区及相 邻小区的测量信息， 计算得到调度到第一小区的非特定资源上的每一个用户设备在第一小区 的非特定资源上所获取的容量； 之后， 根据调度到第一小区特定资源上的每一个用户设备在 第一小区的特定资源上所获取的容量， 及调度到第一小区非特定资源上的每一个用户设备在 第一小区的非特定资源上所获取的容量， 计算得到与当前功率对应的第一小区的容量。
在一个可选实施例中， 以测量信息为 RSRP为例， 计算调度到第一小区的特定资源上的每 一个用户设备在第一小区的特定资源上所获取的容量的计算方式请参看公式 1， 此处就不再 赘述。
在另一可选实施例中， 以测量信息为 RSRP为例， 计算调度到第一小区的非特定资源上的 每一个用户设备在第一小区的非特定资源上所获取的容量可以采用如下所示的公式 3计算得 到。
C:0"-ABS (m, x) = log2{l + 7^ } 公式 3
在公式 3中，
Figure imgf000012_0001
χ)为调度到第一小区的非特定资源上的 UEn在非特定资源上获 取的容量； RSRPi为调度到第一小区的非特定资源上的用户设备上报的本小区， 即第一小区的 RSRP; RSRPk为调度到第一小区的非特定资源上的用户设备上报的相邻小区， 具体为第三小区 内的第 K个小区的 RSRP。
在一个可选实施例中， 第一基站可以将根据公式 1和公式 2计算得到的调度到第一小区 的特定资源上的每一个用户设备在第一小区的特定资源上所获取的小区容量， 及调度到第一 小区非特定资源上的每一个用户设备在第一小区的非特定资源上所获取的小区容量采用如下 所示的公式 4进行处理， 得到当前发射功率对应的第一小区的容量。
C 'co (m, x) = ∑ C s (m, x) + l ~ f{m) C:on—ABS (m, x) 公式 4
N n=0 N n=0 在公式 4中， C (m, x)为与当前功率对应的第一小区的容量； C s(m, x)为调度到第一 小区的特定资源上的用户设备在第一小区的特定资源上所获取的容量；
Figure imgf000012_0002
χ)为调度 到第一小区的非特定资源上的用户设备在第一小区的非特定资源上获取的容量； Ν 为第一基 站所服务用户设备的总个数， 由于基站所服务的用户设备在基站有注册， 所以， 第一基站是 可以知道第一小区所服务的用户设备的总个数的；公式 4中的 f (m)为第二基站所设置的 ABS 模式。
本方式在具体实现时， 当测量信息为 CQI时， 计算与第二基站在第二小区的特定资源上 预设的发射功率对应的第一小区的容量信息的方法包括： 直接根据第一小区所服务的用户设 备在第一小区的特定资源上上报的 CQI， 找到所上报 CQI对应的频谱效率， 然后， 将所有用 户设备所上报 CQI对应的频谱效率进行处理， 例如平均或者加权平均等， 获得处理后的第一 小区频谱效率， 作为与第二基站在第二小区的特定资源上预设的发射功率对应的第一小区的 容量信息。
方式三、如果第一基站采用 RR的调度方式将位于小区扩展（Cel l Range Extension, CRE) 区域的用户设备调度在第一小区的特定资源上，将处于其他区域的用户设备以 RR方式调度在 到第一小区的非特定资源上， 所述的特定资源为单一 ABS或者是一组 ABS， 所述非特定资源 为单一的非 ABS或者为一组非 ABS。 则依次将多个第二基站在第二小区的特定资源上预设的 发射功率作为当前功率， 计算与当前功率对应的第一小区的容量， 具体包括： 根据调度到第 一小区的特定资源上的每一个用户设备上报的本小区及相邻小区的测量信息， 计算得到调度 到第一小区的特定资源上的每一个用户设备在第一小区的特定资源上所获取的容量； 并根据 调度到第一小区的非特定资源上的每一个用户设备上报的本小区及相邻小区的测量信息， 计 算得到调度到第一小区的非特定资源上的每一个用户设备在第一小区的非特定资源上所获取 的容量； 之后， 根据调度到第一小区的特定资源上的每一个用户设备在第一小区的特定资源 上所获取的容量， 及调度到第一小区的非特定资源上的每一个用户设备在第一小区的非特定 资源上所获取的容量， 计算得到与当前功率对应的第一小区的容量。
作为一个可选实施例， 以测量信息为 RSRP为例， 计算调度到第一小区的特定资源上的每 一个用户设备在第一小区的特定资源上所获取的容量的计算方式请参看公式 1， 此处就不再 赘述。
作为另一可选实施例， 以测量信息为 RSRP为例， 计算调度到第一小区的非特定资源上的 每一个用户设备在第一小区的非特定资源上所获取的容量的计算方式请参见公式 3， 此处就 不再赘述。
在一个可选实施例中， 第一基站可以将计算得到的调度到第一小区的特定资源上的每一 个用户设备在第一小区的特定资源上所获取的容量， 及调度到第一小区的非特定资源上的每 一个用户设备在第一小区的非特定资源上所获取的容量采用如下所示的公式 5进行处理， 得 到与当前功率对应的第一小区的容量。
C C0 (m, x) = Z C s (m, x) + l ~ f(m) ∑ C:。"-ABS(m, x) 公式 5
L N— L ^ 在公式 5中， ^1^^ ^为与当前功率对应的第一小区的容量； C s(m, x)为调度到第一 小区的特定资源上的用户设备在第一小区的特定资源上所获取的容量；
Figure imgf000013_0001
χ)为调度 到第一小区的非特定资源上的用户设备在第一小区的非特定资源上获取的容量； Ν 为第一基 站所服务用户设备的总个数， 由于基站所服务的用户设备在基站有注册， 所以， 第一基站可 以知道第一小区所服务的用户设备的总个数； f (m) 为第二基站所设置的 ABS模式； L为位 于第一小区的 CRE扩展区域的用户设备的个数。
本方式在具体实现时， 当测量信息为 CQI时， 计算与第二基站在第二小区的特定资源上 预设的发射功率对应的第一小区的容量信息的方法包括： 直接根据第一小区所服务的用户设 备在第一小区的特定资源上上报的 CQI， 找到所上报 CQI对应的频谱效率， 然后， 将所有用 户设备所上报 CQI对应的频谱效率进行处理， 例如平均或者加权平均等， 获得处理后的第一 小区频谱效率， 作为与第二基站在第二小区的特定资源上预设的发射功率对应的第一小区的 容量信息。
203，第一基站将与第二基站在第二小区的特定资源上预设的发射功率对应的第一小区的 容量信息发送给功率确定设备。
本发明实施例中， 所述功率确定设备具体可以是第二基站或者控制节点。
针对第一基站与功率确定设备已预先商定了第二基站在第二小区的特定资源上预设的发 射功率的场景， 第一基站仅将计算得到的第一小区的容量信息发送给功率确定设备。
针对第一基站与功率确定设备未预先商定第二基站在第二小区的特定资源上预设的发射 功率的场景， 第一基站在将与第二基站在第二小区的特定资源上预设的发射功率对应的第一 小区的容量信息发送给功率确定设备时， 还将与第一小区的容量信息对应的第二基站在第二 小区的特定资源上预设的发射功率的信息发送给功率确定设备。
其中， 第二基站在第二小区的特定资源上预设的发射功率的信息具体可以包括但不限于 第二基站在第二小区的特定资源上预设的发射功率， 或者第二基站在第二小区的特定资源上 预设的发射功率的等级信息。
本发明实施例中， 如果功率确定设备为控制节点， 第一基站在发送所述第一小区的容量 信息给控制节点时， 还将第二基站的标识发送给控制节点， 以便控制节点确定所接收到的标 识所标识的第二基站在第二小区的特定资源上采用的发射功率。
本发明实施例在具体实现时， 如果功率确定设备为第二基站， 则第一基站通过与第二基 站间建立的 X2接口， 将所述第一小区的容量信息或 /和与第一小区的容量信息对应的第二基 站在第二小区的特定资源上预设的发射功率的信息发送给第二基站；
如果功率确定设备为控制节点， 例如： 若控制节点为 MME， 则第一基站通过与 MME间建 立的 S1接口， 将所述第一小区的容量信息或 /和与第一小区的容量信息对应的第二基站在第 二小区的特定资源上预设的发射功率的信息发送给控制节点； 若控制节点为 0AM， 则第一基 站通过与 0AM间建立的南向接口 Itf-S， 将所述第一小区的容量信息或 /和与第一小区的容量 信息对应的第二基站在第二小区的特定资源上预设的发射功率的信息发送给控制节点。
204， 功率确定设备接收到第一基站发送的第一小区的容量信息后， 获取第二小区的容量 信息，所述第二小区的容量信息与第二基站在第二小区的特定资源上预设的发射功率相对应。
具体地， 获取第二小区的容量信息可以包括： 如果功率确定设备为第二基站， 且针对第一基站与功率确定设备未预先商定第二基站在 第二小区的特定资源上预设的发射功率的场景， 第二基站根据在所述第二小区的特定资源上 预设的发射功率， 第二小区所服务的用户设备上报的本小区及相邻小区的测量信息， 计算得 到与第二基站在第二小区的特定资源上预设的发射功率对应的第二小区的容量信息。 此场景 下， 第二基站在第二小区的特定资源上预设的发射功率为第一基站与第二基站预先商定的第 二基站在第二小区的特定资源上的发射功率。
如果功率确定设备为第二基站， 且针对第一基站与功率确定设备未预先商定第二基站在 第二小区的特定资源上预设的发射功率的场景， 第二基站接收第一基站发送的与第一小区的 容量信息对应的第二基站在第二小区的特定资源上预设的发射功率的信息， 之后， 第二基站 根据在所述第二小区的特定资源上预设的发射功率， 第二小区所服务的用户设备上报的本小 区及相邻小区的测量信息， 计算得到与第二基站在第二小区的特定资源上预设的发射功率对 应的第二小区的容量信息。 此场景下， 第二基站在第二小区的特定资源上预设的发射功率为 接收到的与第一小区的容量信息对应的第二基站在第二小区的特定资源上预设的发射功率的 信息相对应的功率。
本发明实施例中， 第二基站计算第二小区的容量信息的具体过程请参见步骤 202中第一 基站计算第一小区的容量信息的过程， 此处就不再赘述。
如果功率确定设备为控制节点， 控制节点接收第二基站发送的第二小区的容量信息。 如果功率确定设备为控制节点， 且针对第一基站与功率确定设备未预先商定第二基站在 第二小区的特定资源上预设的发射功率的场景， 控制节点在接收第二基站发送的第二小区的 容量信息时， 还接收到第二基站发送的与第二小区的容量信息对应的第二基站在第二小区的 特定资源上预设的发射功率的信息。
205，功率确定设备根据第一小区的容量信息及第二小区的容量信息确定第二基站在第二 小区的特定资源上采用的发射功率。
本发明实施例在具体实现时， 如果第二基站在第二小区的特定资源上预设的发射功率为 多个， 则第一小区的容量信息为多个且与第二基站在第二小区的特定资源上预设的发射功率 一一对应， 第二小区的容量信息为多个且与第二基站在第二小区的特定资源上预设的发射功 率 对应。
那么， 根据第一小区的容量信息及第二小区的容量信息确定第二基站在第二小区的特定 资源上采用的发射功率包括：
根据所述第一小区的容量信息和所述第二小区的容量信息， 计算出所述第一小区和第二 小区的总容量信息， 所述总容量信息为多个且与所述第二基站在所述第二小区的特定资源上 预设的发射功率一一对应； 从计算出的多个所述总容量信息中选出最大的总容量信息， 将所 述最大的总容量信息对应的功率作为所述第二基站在所述第二小区的特定资源上采用的发射 功率。
针对， 第一基站与第二基站在第二小区的特定资源上预设的发射功率确定设备 （如第二 基站） 已预先商定功率的场景， 举例说明上述步骤 202至步骤 204所述的过程：
第一基站计算得到与第二基站在第二小区的特定资源上预设的发射功率 Pl、 P2、 P3 和
P4——对应的第一小区的容量为 Cl、 C2、 C3和 C4;
第二基站计算得到与第二基站在第二小区的特定资源上预设的发射功率 Pl、 P2、 P3和 P4 ——对应的第二小区的容量为 CI ' 、 C2 ' 、 C3 ' 和 C4' ；
第二基站计算得到与第二基站在第二小区的特定资源上预设的发射功率 Pl、 P2、 P3和 P4 ——对应的第一小区和第二小区的总容量 C1+ CI ' 、 C2+ C2 ' 、 C3+ C3 ' 和 C4+C4' ；
第二基站在 C1+ C1 ' 、 C2+ C2 ' 、 C3+ C3 ' 和 C4+C4' 中选择一最大的总容量， 如 C4+C4' ， 那么， C4+C4' 所对应的功率 P4即为第二基站在特定资源上采用的发射功率。
进一步地， 本发明实施例中， 作为干扰源的第二小区可能对多个不同的第一小区造成强 干扰， 那么， 基于以上的描述可以知道， 每一个第一基站都将发送一个与第二基站在第二小 区的特定资源上预设的发射功率对应的第一小区的容量信息给功率确定设备， 这样， 功率确 定设备将接收到多个第一小区的容量信息， 之后， 功率确定设备获取第二小区的容量信息， 所述第二小区的容量信息与第二基站在第二小区的特定资源上预设的发射功率相对应， 并根 据接收到的多个第一小区的容量信息及获取的第二小区的容量信息来确定第二基站在第二小 区的特定资源上的发射功率。
具体地， 功率确定设备根据接收到多个第一小区的容量信息及获取的第二小区的容量信 息确定第二基站在第二小区的特定资源上的发射功率：
功率确定设备根据接收到的多个第一小区的容量信息确定多个第一小区的总容量信息； 功率确定设备根据多个第一小区的总容量信息及第二小区的容量信息， 计算出多个第一 小区和第二小区的总容量信息；
当第二基站在第二小区的特定资源上预设的发射功率为多个时， 第一小区的容量信息为 多个且与第二基站在第二小区的特定资源上预设的发射功率一一对应， 第二小区的容量信息 为多个且与第二基站在第二小区的特定资源上预设的发射功率一一对应， 多个第一小区的总 容量信息为多个且与第二基站在第二小区的特定资源上预设的发射功率一一对应， 多个第一 小区和第二小区的总容量信息为多个且与第二基站在第二小区的特定资源上预设的发射功率 一一对应； 则从计算出的多个所述总容量信息中选出最大的总容量信息， 将所述最大的总容 量信息对应的功率作为第二基站在第二小区的特定资源上采用的发射功率。
在一个可选实施例中， 可以采用如下所示的公式 6计算多个第一小区和第二小区的总容量 信息。
C(m, X) = J co Z CF (m, x) + L acm * C a (m, x) 公式 6 在上述公式 6中， C ( m, x)为与第二基站在第二小区的特定资源上预设的发射功率对应的 i个第一小区和第二小区的总容量信息； Jf∞为第一小区的负载因子； ∑cr°(m,x)为与第二 基站在第二小区的特定资源上预设的发射功率对应的第 i个第一小区的容量信息； Ο , χ) 为与第二基站在第二小区的特定资源上预设的发射功率对应的第二小区的容量信息； ^ 为 第二小区的负载因子。
本发明实施例中， 第一基站和第二基站在建立 X2连接时， 交互彼此的负载信息， 第二基 站接收到第一基站发送的负载信息， 并解析所述负载信息得到第一小区的负载因子， 而第二 小区的负载因子是可以从自身的负载信息中得到的。 本发明实施例在具体实现时， 针对载波聚合 (Carrier Aggregation, CA)的应用场景， 所 述特定资源为单一载波或者一组载波， 那么， CA场景下， 如果第一小区的容量信息为第一小 区的容量， 则确定发射功率的方法与 elCIC场景下确定法发射功率的方法类似。所不同的是： CA场景下， 第一基站根据第一小区所服务的用户设备上报的本小区及相邻小区的测量信息， 计算得到与第二基站在第二小区的特定资源上预设的发射功率对应的第一小区的容量信息所 采用的方式不同于 elCIC场景下采用的方式， 具体描述如下。
同样的以测量信息为 RSRP为例来说明， CA场景下， 第一基站采用轮询 （Round Robin, RR) 的调度方式分别将第一小区所服务的各用户设备调度到所述特定资源上， 当第二小区的 特定资源上预设的发射功率为多个功率时， 则依次将多个与第二基站在第二小区的特定资源 上预设的发射功率作为当前功率， 计算与当前功率对应的第一小区的容量， 分别根据第一小 区所服务的每一个用户设备上报的本小区及相邻小区的测量信息， 计算每一个用户设备被调 度到第一小区的特定资源上所获取的容量， 之后， 根据每一个用户设备调度到第一小区的特 定资源上所获取的容量计算得到与当前功率对应的第一小区容量。
作为一个可选实施例， 如果第一小区所服务的用户设备 UEn被调度在第一小区的特定资 源上， 则 UEn在第一小区所的特定资源上所获取的容量可以用如下所示公式 7计算得到。
Cn (m， x) = log2 {l +―—— ^ } 公式 7
∑ RSRPk + x * RSRPm 在上述公式 7中， C„(m, x)为 UEn调度到第一小区的特定资源上所获取的容量； RSRPi 为 UEn上报的本小区， 即第一小区的 RSRP; RSRPk为 UEn上报的相邻小区， 具体为第三小区 内的第 K个小区的 RSRP; RSRPm为 UEn上报的相邻小区， 具体为第二小区的 RSRP; X为当 前功率相对于第二基站发送 RS的发射功率的比例， 其中， 所述当前功率为前面介绍的发射 功率所可以配置的 8个档值中的一个。
第一基站在根据公式 7计算得到第一小区所服务的每一个用户设备在调度到第一小区的 特定资源上所获取的容量后， 将第一小区所服务的每一个用户设备在第一小区的特定资源上 所获取的容量进行相加求均值， 得到与当前功率对应的第一小区的容量。 作为一个可选实施 例， 具体可以采用如下所示公式 8计算与当前功率对应的第一小区的容量。
CF (m, χ) =丄 ^ C„ (m, x) 公式 8 在上述公式 8中， C (m, x)为与当前功率对应的第一小区的容量； N为第一基站所服务 用户设备的总个数， 由于基站所服务的用户设备在基站有注册， 所以第一基站知道自身所服 务的用户设备的总个数； C„(m, x)为第一小区所服务的用户设备 UEn调度到第一小区的特定 资源上所获取的容量。
本方式在具体实现时， 当测量信息为 CQI时， 计算与第二基站在第二小区的特定资源上 预设的发射功率对应的第一小区的容量信息的方法包括： 直接根据第一小区所服务的用户设 备在第一小区的特定资源上上报的 CQI， 找到所上报 CQI对应的频谱效率， 然后， 将所有用 户设备所上报 CQI对应的频谱效率进行处理， 例如平均或者加权平均等， 获得处理后的第一 小区频谱效率， 作为与第二基站在第二小区的特定资源上预设的发射功率对应的第一小区的 容量信息。
之后， 第一基站便可以将计算得到的与第二基站在第二小区的特定资源上预设的发射功 率对应的第一小区的容量信息发送给功率确定设备， 以便功率确定设备根据所接收到的第一 小区的容量信息确定第二基站在第二小区特定资源上的发射功率， 有关本部分的详细描述请 参见步骤 203至步骤 205的描述， 此处就不再赘述。
本发明实施例在具体实现时， 当特定资源为单一物理资源块 (Physical Resource Block, PRB)或者一组物理资源块时， 确定发射功率的方法与 CA场景下确定发射功率的方法一样， 此 处就不再赘述。
本发明实施例提供上述技术方案， 通过接收第一基站发送的第一小区的容量信息， 并获 取第二小区的容量信息， 之后， 根据所述第一小区的容量信息和第二小区的容量信息来确定 第二基站在第二小区的特定资源上采用的发射功率的技术方案的实现， 可以保证第一小区和 第二小区的总容量最大化。
如图 3所示， 本实施例提供一种确定发射功率的方法， 包括以下内容。
301， 第一基站向第二基站发送的第一小区的容量信息， 所述第一小区的容量信息与第二 基站在所述第二小区的特定资源上预设的发射功率相对应， 所述特定资源为所述第一小区和 所述第二小区共用的无线资源； 所述第一容量信息用于所述第二基站确定在所述第二小区的 特定资源上采用的发射功率。
具体地， 第二基站确定在所述第二小区的特定资源上采用的发射功率的方法可参考前述 实施例， 此处不再赘述。
作为一个可选实施例， 所述第一小区的容量信息可包含在所述第一基站向所述第二基站 发送的负载信息 (例如 Load Information消息) 中。
作为另一可选实施例， 上述图 3所示的 301之前还可以包括：
300， 第一基站接收第二基站发送的容量请求信息。
此时， 上述 301具体可以为： 所述第一基站根据所述容量请求信息向所述第二基站发送 所述第一小区的容量信息。 可选地， 所述容量请求信息可包含在所述第二基站向所述第一基 站发送的资源状态请求消息 （例如 Resource Status Request消息） 中； 所述第一小区的容 量信息可包含在所述第一基站向所述第二基站发送的资源状态更新消息 （例如 Resource Status Update消息） 中。
进一步地， 上述实施例中， 所述第一基站可以根据所述第二基站在所述第二小区的特定 资源上预设的发射功率， 及用户设备上报的所述第一小区及相邻小区的测量信息， 计算得到 所述第一小区的容量信息。 上述实施例提供的技术方案， 通过第一基站向第二基站发送第一 小区的容量信息， 使得第二基站可以根据第一小区的容量信息确定在所述第二小区的特定资 源上采用的发射功率， 进而保证第一小区的容量。 本发明实施例另一面还提供了一种功率确定设备， 参见图 4， 该功率确定设备具体可以 是方法实施例中所描述的第二基站或者控制节点， 包括： 接收器 401和第一处理器 402。
其中， 接收器 401用于接收第一基站发送的所述第一小区的容量信息， 所述第一小区的 容量信息与第二基站在所述第二小区的特定资源上预设的发射功率相对应， 所述特定资源为 所述第一小区和所述第二小区共用的无线资源； 第一处理器 402用于根据接收器 401接收到 的第一小区的容量信息和第一处理器 402获取的第二小区的容量信息确定第二基站在第二小 区的特定资源上采用的发射功率。
本发明实施例在具体实现时， 第一处理器 402具体用于根据第一小区的容量信息计算第 一小区的平均容量， 并根据第一小区的平均容量确定第二小区的服务基站在第二小区的特定 资源上采用的发射功率。
进一步地， 第一处理器 402具体用于功率确定设备确定第一小区的平均容量满足预定容 量门限的最大发射功率， 并将最大发射功率作为第二小区的服务基站在第二小区的特定资源 上采用的发射功率。
本发明实施例在具体实现时， 如果第二小区的服务基站在第二小区的特定资源上预设的 发射功率为多个， 则第一小区的容量信息为多个且与第二小区的服务基站在第二小区的特定 资源上预设的发射功率一一对应。
本发明提供的上述技术方案， 功率确定设备通过接收第一小区的服务基站发送的第一小 区的容量信息， 并根据该第一小区的容量信息确定第二小区的服务基站在第二小区的特定资 源上采用的发射功率， 可以保证第一小区 （即受干扰小区） 的容量。
参见图 5， 作为一个可选实施例， 如图 4所示的设备还包括：
第二处理器 403， 用于获取第二小区的容量信息， 并根据第一小区的容量信息和第二小 区的容量信息确定第二小区的服务基站在第二小区的特定资源上采用的发射功率； 第二小区 的容量信息与第二小区的服务基站在第二小区的特定资源上预设的发射功率相对应。
本发明实施例在具体实现时， 针对第一基站与功率确定设备未预先商定第二基站在第二 小区的特定资源上预设的发射功率的场景， 接收器 401还用于接收第一基站发送的与第一小 区的容量信息相对应的第二基站在第二小区的特定资源上预设的发射功率的信息。
本发明实施例在具体实现时， 针对第一基站与功率确定设备未预先商定第二基站在第二 小区的特定资源上预设的发射功率的场景， 且功率确定设备为控制节点时， 接收器 401还用 于接收第二基站发送的与第二小区的容量信息相对应的第二基站在第二小区的特定资源上预 设的发射功率的信息。
本发明实施例中， 当功率确定设备为控制节点时， 第二处理器 403具体用于接收第二基 站发送的第二小区的容量信息。 当功率确定设备为第二基站时， 第二处理器 403具体用于根 据第二基站在第二小区的特定资源上预设的发射功率， 及第二小区所服务的用户设备上报的 测量信息， 计算得到第二小区的容量信息。
参见图 6， 本发明实施例中如图 5所示的第二处理器 403包括：
计算单元 4031， 用于当第二基站在第二小区的特定资源上预设的发射功率为多个， 则第 一小区的容量信息为多个且与第二基站在第二小区的特定资源上预设的发射功率一一对应， 第二小区的容量信息为多个且与第二基站在第二小区的特定资源上预设的发射功率一一对应 时， 根据第一小区的容量信息和第二小区的容量信息， 计算出第一小区和第二小区的总容量 信息， 总容量信息为多个且与第二基站在第二小区的特定资源上预设的发射功率一一对应； 禾口
确定单元 4032， 用于从计算出的多个总容量信息中选出最大的总容量信息， 将最大的总 容量信息对应的功率作为第二基站在第二小区的特定资源上采用的发射功率。
本发明实施例提供上述技术方案， 通过接收第一基站发送的第一小区的容量信息， 并获 取第二小区的容量信息， 之后， 根据所述第一小区的容量信息和第二小区的容量信息来确定 第二基站在第二小区的特定资源上采用的发射功率的技术方案的实现， 可以保证第一小区和 第二小区的总容量最大化。
本发明实施例再一方面还所提供的一种基站， 参见图 7， 该基站具体可以为上述方法实 施例中的第一基站， 包括：
发送器 501， 用于向第二小区的服务基站发送第一小区的容量信息， 所述第一小区的容 量信息与第二小区的服务基站在所述第二小区的特定资源上预设的发射功率相对应， 所述特 定资源为所述第一小区和所述第二小区共用的无线资源； 所述第一容量信息用于所述第二小 区的服务基站确定在所述第二小区的特定资源上采用的发射功率。
作为一个可选实施例， 所述第一小区的容量信息包含在第一小区的服务基站向第二小区 的服务基站发送的负载信息中。
参见图 8， 作为另一个可选实施例， 图 7所示的基站还包括：
接收器 502， 用于接收第二小区的服务基站发送的容量请求信息；
则相应地， 发送器 501， 具体用于根据容量请求信息向第二小区的服务基站发送第一小 区的容量信息。
可选地， 所述容量请求信息包含在第二小区的服务基站向第一小区的服务基站发送的资 源状态请求消息中； 所述第一小区的容量信息包含在第一小区的服务基站向第二小区的服务 基站发送的资源状态更新消息中。
进一步地， 上述实施例中， 所述基站可以用于根据第二基站在所述第二小区的特定资源 上预设的发射功率， 及用户设备上报的所述第一小区及相邻小区的测量信息， 计算得到所述 第一小区的容量信息。 上述实施例提供的技术方案， 通过第一基站向第二基站发送第一小区 的容量信息， 使得第二基站可以根据第一小区的容量信息确定在所述第二小区的特定资源上 采用的发射功率， 进而保证第一小区的容量。
另外， 本发明实施例还提供了的一种确定发射功率的系统， 参见图 9， 该系统包括： 第 一基站 601和功率确定设备 602。
上述第一基站 601用于向功率确定设备 602发送第一小区的容量信息， 第一小区的容量 信息与第二基站在第二小区的特定资源上预设的发射功率相对应， 特定资源为第一小区和第 二小区共用的无线资源； 上述功率确定设备 602用于接收第一基站发送的第一小区的容量信 息， 之后， 根据第一小区的容量信息确定第二基站在第二小区的特定资源上采用的发射功率。
本发明提供的上述技术方案， 功率确定设备通过接收第一小区的服务基站发送的第一小 区的容量信息， 并根据该第一小区的容量信息确定第二小区的服务基站在第二小区的特定资 源上采用的发射功率， 可以保证第一小区 （即受干扰小区） 的容量。
作为一个可选实施例， 功率确定设备 602还用于获取第二小区的容量信息， 其中， 第二 小区的容量信息与第二小区的服务基站在第二小区的特定资源上预设的发射功率相对应， 之 后， 根据第一小区的容量信息和第二小区的容量信息确定第二小区的服务基站在第二小区的 特定资源上采用的发射功率， 以保证第一小区和第二小区的总容量最大化。
本发明实施例中， 功率确定设备 602具体可以是方法实施例中所述的第二基站或者是控 制节点， 其详细的结构请参见图 4、 5或 6所示的功率确定设备， 第一基站 601的详细的结构 请参加图 7和图 8所示的基站， 此处就不再赘述。
本发明实施例所述各设备之间的相互作用， 可以参阅方法实施例部分的说明， 此处不再 赘述。 本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成， 也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中， 上述提到的存储介质可以是只读存储器， 磁盘或光盘等。 以上所述仅为本发明的较佳实施例， 并不用以限制本发明， 凡在本发明的原则之内， 所 作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权利要求
1、 一种确定发射功率的方法， 其特征在于， 所述方法包括：
功率确定设备接收第一小区的服务基站发送的所述第一小区的容量信息， 所述第一小区 的容量信息与第二小区的服务基站在所述第二小区的特定资源上预设的发射功率相对应， 所 述特定资源为所述第一小区和所述第二小区共用的无线资源；
所述功率确定设备根据所述第一小区的容量信息确定所述第二小区的服务基站在所述第 二小区的特定资源上采用的发射功率。
2、根据权利要求 1所述的方法， 其特征在于， 所述功率确定设备根据所述第一小区的容 量信息确定所述第二小区的服务基站在所述第二小区的特定资源上采用的发射功率， 包括： 所述功率确定设备根据所述第一小区的容量信息计算第一小区的平均容量， 并根据所述 第一小区的平均容量确定第二小区的服务基站在所述第二小区的特定资源上采用的发射功 率。
3、根据权利要求 2所述的方法， 其特征在于， 所述根据所述第一小区的平均容量确定第 二小区的服务基站在所述第二小区的特定资源上采用的发射功率， 包括：
所述功率确定设备确定所述第一小区的平均容量满足预定容量门限的多个发射功率中的 最大发射功率， 并将所述最大发射功率作为所述第二小区的服务基站在第二小区的特定资源 上采用的发射功率。
4、根据权利要求 1至 3任一项所述的方法， 其特征在于， 第二小区的服务基站在所述第 二小区的特定资源上预设的发射功率为多个， 所述第一小区的容量信息为多个且与第二小区 的服务基站在所述第二小区的特定资源上预设的发射功率一一对应。
5、 根据权利要求 1所述的方法， 特征在于， 所述方法还包括： 所述功率确定设备获取所 述第二小区的容量信息， 所述第二小区的容量信息与所述第二小区的服务基站在所述第二小 区的特定资源上预设的发射功率相对应；
所述功率确定设备根据所述第一小区的容量信息确定所述第二小区的服务基站在所述第 二小区的特定资源上采用的发射功率， 包括：
所述功率确定设备根据所述第一小区的容量信息和所述第二小区的容量信息确定所述第 二小区的服务基站在所述第二小区的特定资源上采用的发射功率。
6、 根据权利要求 5所述的方法， 其特征在于， 所述方法还包括： 所述功率确定设备接收 所述第一小区的服务基站发送的与所述第一小区的容量信息相对应的所述第二小区的服务基 站在所述第二小区的特定资源上预设的发射功率的信息。
7、根据权利要求 5所述的方法， 其特征在于， 所述功率确定设备为所述第二小区的服务 基站；
所述功率确定设备获取所述第二小区的容量信息， 包括：
所述第二小区的服务基站根据所述第二小区的服务基站在所述第二小区的特定资源上预 设的发射功率， 及所述第二小区所服务的用户设备上报的测量信息， 计算得到所述第二小区 的容量信息。
8、 根据权利要求 5所述的方法， 其特征在于， 所述功率确定设备为控制节点； 所述功率确定设备获取所述第二小区的容量信息， 包括：
所述控制节点接收所述第二小区的服务基站发送的所述第二小区的容量信息。
9、 根据权利要求 8所述的方法， 其特征在于， 所述方法还包括： 所述控制节点接收所述 第二小区的服务基站发送的与所述第二小区的容量信息相对应的所述第二小区的服务基站在 所述第二小区的特定资源上预设的发射功率的信息。
10、 根据权利要求 5至 9任一项所述的方法， 其特征在于， 第二小区的服务基站在所述 第二小区的特定资源上预设的发射功率为多个， 则所述第一小区的容量信息为多个且与第二 小区的服务基站在所述第二小区的特定资源上预设的发射功率一一对应， 所述第二小区的容 量信息为多个且与第二小区的服务基站在所述第二小区的特定资源上预设的发射功率一一对 应。
11、根据权利要求 10所述的方法， 其特征在于， 所述根据所述第一小区的容量信息和第 二小区的容量信息， 确定所述第二小区的服务基站在所述第二小区的特定资源上采用的发射 功率包括： 根据所述第一小区的容量信息和所述第二小区的容量信息， 计算出所述第一小区和第二 小区的总容量信息， 所述总容量信息为多个且与所述第二小区的服务基站在所述第二小区的 特定资源上预设的发射功率一一对应；
从计算出的多个所述总容量信息中选出最大的总容量信息， 将所述最大的总容量信息对 应的功率作为所述第二小区的服务基站在所述第二小区的特定资源上采用的发射功率。
12、 根据权利要求 1至 11任一项所述的方法， 其特征在于， 所述特定资源为时域资源、 频域资源和空域资源中的一种或者多种， 所述时域资源、 频域资源或者空域资源至少包括单 一载波、 一组载波、 单一几乎空子帧 ABS、 一组 ABS、 单一物理资源块、 一组物理资源块、 单 一波束或者一组波束。
13、 一种功率确定设备， 其特征在于， 包括： 接收器和第一处理器；
所述接收器， 用于接收第一小区的服务基站发送的所述第一小区的容量信息， 所述第一 小区的容量信息与第二小区的服务基站在所述第二小区的特定资源上预设的发射功率相对 应， 所述特定资源为所述第一小区和所述第二小区共用的无线资源；
所述第一处理器， 用于根据所述接收器接收到的第一小区的容量信息确定所述第二小区 的服务基站在所述第二小区的特定资源上采用的发射功率。
14、 根据权利要求 13所述的设备， 其特征在于， 所述第一处理器具体用于：
根据所述第一小区的容量信息计算第一小区的平均容量， 并根据所述第一小区的平均容 量确定第二小区的服务基站在所述第二小区的特定资源上采用的发射功率。
15、 根据权利要求 14所述的设备， 其特征在于， 所述第一处理器具体用于：
所述功率确定设备确定所述第一小区的平均容量满足预定容量门限的最大发射功率， 并 将所述最大发射功率作为所述第二小区的服务基站在第二小区的特定资源上采用的发射功 率。
16、 根据权利要求 13至 15任一项所述的设备， 其特征在于， 第二小区的服务基站在所 述第二小区的特定资源上预设的发射功率为多个， 所述第一小区的容量信息为多个且与第二 小区的服务基站在所述第二小区的特定资源上预设的发射功率一一对应。
17、 根据权利要求 13所述的设备， 特征在于， 所述设备还包括：
第二处理器， 用于获取所述第二小区的容量信息， 并根据所述第一小区的容量信息和所 述第二小区的容量信息确定所述第二小区的服务基站在所述第二小区的特定资源上采用的发 射功率； 所述第二小区的容量信息与所述第二小区的服务基站在所述第二小区的特定资源上 预设的发射功率相对应。
18、 根据权利要求 17所述的设备， 其特征在于， 所述接收器， 还用于接收所述第一小区 的服务基站发送的与所述第一小区的容量信息相对应的所述第二小区的服务基站在所述第二 小区的特定资源上预设的发射功率的信息。
19、根据权利要求 18所述的设备， 其特征在于， 当所述功率确定设备为所述第二小区的 服务基站时， 所述第二处理器， 还具体用于根据所述第二小区的服务基站在所述第二小区的 特定资源上预设的发射功率， 及所述第二小区所服务的用户设备上报的测量信息， 计算得到 所述第二小区的容量信息。
20、 根据权利要求 17所述的设备， 其特征在于， 当所述功率确定设备为控制节点时， 所 述第二处理器， 具体用于接收所述第二小区的服务基站发送的所述第二小区的容量信息。
21、 根据权利要求 20所述的设备， 其特征在于， 所述接收器， 还用于所述第二小区的服 务基站发送的与所述第二小区的容量信息相对应的所述第二小区的服务基站在所述第二小区 的特定资源上预设的发射功率的信息。
22、 根据权利要求 17至 21任一项所述的设备， 其特征在于， 所述第二处理器包括： 计 算单元和确定单元，
当第二小区的服务基站在所述第二小区的特定资源上预设的发射功率为多个， 则所述第 一小区的容量信息为多个且与第二小区的服务基站在所述第二小区的特定资源上预设的发射 功率一一对应， 所述第二小区的容量信息为多个且与第二小区的服务基站在所述第二小区的 特定资源上预设的发射功率一一对应时，
所述计算单元， 用于根据所述第一小区的容量信息和所述第二小区的容量信息， 计算出 所述第一小区和第二小区的总容量信息， 所述总容量信息为多个且与所述第二小区的服务基 站在所述第二小区的特定资源上预设的发射功率一一对应；
所述确定单元， 用于从计算出的多个所述总容量信息中选出最大的总容量信息， 将所述 最大的总容量信息对应的功率作为所述第二小区的服务基站在所述第二小区的特定资源上采 用的发射功率。
23、 一种确定发射功率的方法， 其特征在于， 所述方法包括：
第一小区的服务基站向第二小区的服务基站发送的第一小区的容量信息， 所述第一小区 的容量信息与第二小区的服务基站在所述第二小区的特定资源上预设的发射功率相对应， 所 述特定资源为所述第一小区和所述第二小区共用的无线资源；
所述第一容量信息用于所述第二小区的服务基站确定在所述第二小区的特定资源上采用 的发射功率。
24、根据权利要求 23所述的方法， 其特征在于， 在所述第一小区的服务基站向第二小区 的服务基站发送的第一小区的容量信息之前， 所述方法还包括：
所述第一小区的服务基站接收所述第二小区的服务基站发送的容量请求信息； 所述第一小区的服务基站向第二小区的服务基站发送的第一小区的容量信息， 包括： 所述第一小区的服务基站根据所述容量请求信息向所述第二小区的服务基站发送所述第 一小区的容量信息。
25、 根据权利要求 24所述的方法， 其特征在于，
所述容量请求信息包含在所述第二小区的服务基站向所述第一小区的服务基站发送的资 源状态请求消息中；
所述第一小区的容量信息包含在所述第一小区的服务基站向所述第二小区的服务基站发 送的资源状态更新消息中。
26、根据权利要求 23所述的方法， 其特征在于， 所述第一小区的容量信息包含在所述第 一小区的服务基站向所述第二小区的服务基站发送的负载信息中。
27、 根据权利要求 23-26任一所述的方法， 其特征在于， 所述方法还包括： 所述第一小 区的服务基站根据所述第二小区的服务基站在所述第二小区的特定资源上预设的发射功率， 及用户设备上报的所述第一小区及相邻小区的测量信息，计算得到所述第一小区的容量信息。
28、 一种基站， 其特征在于， 所述基站包括：
发送器， 用于向第二小区的服务基站发送第一小区的容量信息， 所述第一小区的容量信 息与第二小区的服务基站在所述第二小区的特定资源上预设的发射功率相对应， 所述特定资 源为所述第一小区和所述第二小区共用的无线资源； 所述第一容量信息用于所述第二小区的 服务基站确定在所述第二小区的特定资源上采用的发射功率。
29、 根据权利要求 28所述的基站， 其特征在于， 所述基站还包括：
接收器， 用于接收所述第二小区的服务基站发送的容量请求信息；
所述发送器， 具体用于根据所述容量请求信息向所述第二小区的服务基站发送所述第一 小区的容量信息。
30、根据权利要求 29所述的基站， 其特征在于， 所述容量请求信息包含在所述第二小区 的服务基站向所述第一小区的服务基站发送的资源状态请求消息中； 所述第一小区的容量信 息包含在所述第一小区的服务基站向所述第二小区的服务基站发送的资源状态更新消息中。
31、根据权利要求 28所述的基站， 其特征在于， 所述第一小区的容量信息包含在所述第 一小区的服务基站向所述第二小区的服务基站发送的负载信息中。
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