WO2012136122A1 - 功率调整方法和基站 - Google Patents

功率调整方法和基站 Download PDF

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Publication number
WO2012136122A1
WO2012136122A1 PCT/CN2012/073370 CN2012073370W WO2012136122A1 WO 2012136122 A1 WO2012136122 A1 WO 2012136122A1 CN 2012073370 W CN2012073370 W CN 2012073370W WO 2012136122 A1 WO2012136122 A1 WO 2012136122A1
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WO
WIPO (PCT)
Prior art keywords
cell
base station
power
signal quality
radio resource
Prior art date
Application number
PCT/CN2012/073370
Other languages
English (en)
French (fr)
Inventor
邓天乐
汤斌淞
罗海燕
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.)
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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 EP12768138.5A priority Critical patent/EP2675223A4/en
Publication of WO2012136122A1 publication Critical patent/WO2012136122A1/zh

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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
    • H04W52/18—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
    • 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
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
    • 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
    • H04W52/18—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
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • 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
    • H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the present application claims priority to Chinese Patent Application No. CN 201110086878.8, entitled “Power Adjustment Method and Base Station", filed on April 7, 2011, the entire contents of which are incorporated by reference.
  • the present invention relates to the field of communications technologies, and in particular, to a power adjustment method and a base station.
  • BACKGROUND OF THE INVENTION The Third Generation Partnership Project (hereinafter referred to as 3GPP) introduces Inter-Cell Interference Coordination (ICIC) interference coordination mechanism in the time domain, through the user equipment (User Equipment; hereinafter referred to as: UE) Almost Blank Subframe (hereinafter referred to as ABS).
  • UE User Equipment
  • ABS Almost Blank Subframe
  • ABS When solving the problem of control channel interference in the mixed deployment of large and small base stations, the ABS does not transmit data, that is, ABS can only be a null frame. Although it is possible to reduce interference, there is a large waste of spectrum resources. Summary of the invention
  • the embodiment of the invention provides a power adjustment method and a base station, so as to dynamically adjust the transmission power of the radio resource.
  • the embodiment of the invention provides a power adjustment method, including:
  • the first base station sends the power adjustment value information of the second cell to the second base station, so that the second base station adjusts the transmission power of the radio resource of the second cell according to the power adjustment value information;
  • the second cell is a neighboring cell of the first cell, the first cell is controlled by the first base station, and the second cell is controlled by the second base station.
  • the embodiment of the invention further provides a power adjustment method, including:
  • the second base station acquires signal quality information of the radio resource of the second cell
  • the second cell is a neighboring cell of the first cell, the first cell is controlled by the first base station, and the second cell is controlled by the second base station.
  • the embodiment of the invention further provides a base station, including:
  • a first processor configured to determine power adjustment value information of the second cell according to a signal quality threshold and signal quality information of a radio resource of the second cell;
  • a transmitter configured to send, by the first processor, power adjustment value information of the second cell to the second base station, so that the second base station adjusts the second cell according to the power adjustment value information
  • the transmit power of the radio resource wherein the second cell is a neighboring cell of the first cell, the first cell is controlled by the first base station, and the second cell is controlled by the second base station.
  • the embodiment of the invention further provides a base station, including:
  • a receiver configured to acquire signal quality information of a radio resource of the second cell
  • a second processor configured to determine, according to signal quality information of the radio resource of the second cell, power adjustment value information of the second cell, and adjust, according to the power adjustment value information, radio resources of the second cell Transmit power; wherein, the second cell is a neighboring cell of the first cell, the first cell is controlled by the first base station, and the second cell is controlled by the second base station.
  • the embodiment of the invention can dynamically adjust the transmission power of the radio resource, thereby reducing interference to adjacent cells and reducing waste of radio resources.
  • FIG. 1 is a flowchart of a power adjustment method according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a power adjustment method according to another embodiment of the present invention.
  • FIG. 3 is a flowchart of a power adjustment method according to still another embodiment of the present invention.
  • FIG. 4 is a flowchart of a power adjustment method according to still another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a carrier aggregation cell according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a beamforming cell according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a base station according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of a base station according to an embodiment of the present invention.
  • the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention.
  • the described embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • FIG. 1 is a flowchart of a power adjustment method according to an embodiment of the present invention.
  • the first cell controlled by the first base station and the second cell controlled by the second base station are neighboring cells, and the first cell is a serving cell of the first user equipment (UE1).
  • the first base station may be referred to as a base station to which the micro cell belongs
  • the second cell is a macro cell
  • the neighboring macro cell may be referred to as a micro cell
  • the second base station may be referred to as a macro cell.
  • the base station to which it belongs but the embodiments of the present invention are not limited thereto.
  • the power adjustment method may include:
  • Step 101 The first base station determines power adjustment value information of the second cell according to the signal quality threshold and the signal quality information of the radio resource of the second cell.
  • Step 102 The first base station sends the power adjustment value information of the second cell to the second base station, so that the second base station adjusts the transmission power of the radio resource of the second cell according to the power adjustment value information.
  • the foregoing embodiment can dynamically adjust the transmission power of the radio resource, thereby reducing interference to neighboring cells and reducing waste of radio resources.
  • FIG. 2 is a flowchart of a power adjustment method according to another embodiment of the present invention.
  • the first cell controlled by the first base station and the second cell controlled by the second base station are neighboring cells, and the first cell is a serving cell of the first user equipment (UE1).
  • the first base station may be referred to as a base station to which the micro cell belongs
  • the second cell is a macro cell
  • the neighboring macro cell may be referred to as a micro cell
  • the second base station may be referred to as a macro cell.
  • the base station to which it belongs but the embodiments of the present invention are not limited thereto.
  • the power adjustment method may include:
  • Step 201 The second base station acquires signal quality information of the radio resource of the second cell.
  • Step 202 The second base station determines the power adjustment value information of the second cell according to the signal quality information of the radio resource of the second cell, and adjusts the transmission power of the radio resource of the second cell according to the power adjustment value information.
  • the foregoing embodiment can dynamically adjust the transmission power of the radio resource, thereby reducing interference to neighboring cells and reducing waste of radio resources.
  • the power adjustment method provided by the embodiment of the present invention is described as an example.
  • FIG. 3 is a flowchart of a power adjustment method according to still another embodiment of the present invention.
  • the first cell controlled by the first base station and the second cell controlled by the second base station are neighboring cells, and the first cell is a serving cell of the first user equipment (UE1).
  • the first base station may be referred to as a base station to which the micro cell belongs
  • the second cell is a macro cell
  • the neighboring macro cell may be referred to as a micro cell
  • the second base station may be referred to as a macro cell.
  • the base station to which it belongs but the embodiments of the present invention are not limited thereto.
  • the power adjustment method may include:
  • Step 301 The first base station obtains received power or signal quality of the radio resource of the second cell.
  • the first base station measures the received power or signal quality of the radio resource of the second cell, thereby obtaining a measured value of the received power or signal quality of the radio resource.
  • the first base station instructs the UE1 to measure the received power or signal quality of the wireless resource of the second cell, and receives the measured value of the received power or signal quality of the radio resource sent by the UE1 to the first base station.
  • Step 302 The first base station sends the power adjustment value information to the second base station, so that the second base station adjusts the transmission power of the radio resource according to the power adjustment value information.
  • the power adjustment value information may be sent by the first base station to the second base station by using an X2 interface, an S1 interface, a Uu interface (ie, an air interface or an air interface for short), or an Operation Support System (OSS). .
  • the two base stations send information through the Uu interface, including one base station transmitting information in a broadcast of one cell it controls, another base station reading the broadcast to obtain the information, or another base station receiving the UE
  • the cell boundary is read by the cell boundary.
  • the power adjustment value information is determined by the first base station according to the signal quality threshold and the obtained received power.
  • the first base station determines the power adjustment value information of the second cell according to the obtained received power, the signal quality threshold, and the total received power of the UE1 or the downlink total power ( Ptotal ) received by the first base station.
  • the total downlink power received by the first base station in the embodiment of the present invention refers to the total power of the downlink signal sent by the first base station as the receiver to receive other base stations (such as the second base station).
  • the power adjustment value information is determined by the first base station according to the signal quality threshold and the obtained signal quality. For example, the first base station based on the signal quality of the signal quality threshold and the total received signal power of UE1 or the first downlink base station total power (P t. Tal) determining a power adjustment value received information of the second cell.
  • the first base station may send the obtained received power or signal quality to the second And the base station, so that the second base station determines the power adjustment value information, and adjusts the transmission power of the radio resource according to the power adjustment value information.
  • the received power or signal quality obtained by the second base station may be sent by the first base station to the second base station by using an X2 interface, an S1 interface, a Uu interface, or an OSS.
  • the power adjustment value information is determined by the second base station according to the received power or signal quality obtained.
  • the power adjustment value information is determined by the second base station according to the obtained received power and the signal quality threshold, or is determined by the second base station according to the obtained signal quality and the signal quality threshold.
  • the signal quality threshold is a reference signal received quality (Reference Signal Received Quality; RSRQ) threshold
  • the second base station is configured according to the received power, the RSRQ threshold, the total received signal of UE1, or the downlink total received by the first base station.
  • the second base station may be based on the received power, the SINR threshold, and the total received signal of UE1. Or the downlink total power received by the first base station and the path loss determination power adjustment value information of the second base station reaching the UE1, or the second base station according to the obtained signal quality, the SINR threshold, the total received power of the UE1, or the first The downlink total power (P t tal ) received by a base station and the path loss determination power adjustment value information of the second base station arriving at UE1.
  • SINR signal to interference plus noise ratio
  • the foregoing signal quality threshold may be obtained in advance by the first base station or the second base station, and the obtaining manner is multiple.
  • it can be configured by the operation support subsystem, or it can be configured by the OSS/Operation Administration and Maintenance (OAM) system operator, or it can be configured by the manufacturer of the production base station.
  • the signal quality threshold obtained by the first base station may be sent by the first base station to the second base station through the X2 interface, or the S1 interface, the Uu interface, or the 0SS.
  • the first base station obtains the signal quality threshold and the first base station.
  • the received power (or signal quality) is sent to the second base station, or the signal quality threshold is sent to the second base station by the message, and is not sent together with the received power (or signal quality) obtained by the first base station.
  • the signal quality threshold obtained by the second base station may be sent to the first base station.
  • the foregoing first base station sends a signal quality threshold to the second base station, and details are not described herein.
  • the first base station and/or the second base station can use a default signal quality threshold.
  • the manner in which the first base station and the second base station obtain the signal quality threshold is not limited in this embodiment.
  • the power adjustment value information in this embodiment may be a target value of the power adjustment or a code indicating the target value.
  • the power adjustment value information may also be an amplitude value of the power adjustment or a code indicating the amplitude value, for example, the amplitude value of the power adjustment is an added value or a reduced value of the power adjustment.
  • the power adjustment value information may also be a level of power adjustment or a code indicating the level, for example, a high, medium, or low level of power adjustment.
  • the adjustment value information may be expressed in a form other than the value, the code, and the level.
  • the receiver of the power adjustment value information may determine the meaning, which is not specifically limited in this embodiment.
  • the radio resource in this embodiment may be a time domain resource (for example, an ABS), or may be a frequency domain resource (for example, a carrier, including a primary carrier and a secondary carrier), and may also be a time-frequency resource (for example, a beam).
  • a time domain resource for example, an ABS
  • a frequency domain resource for example, a carrier, including a primary carrier and a secondary carrier
  • a time-frequency resource for example, a beam.
  • the specific form of the wireless resource is not limited.
  • the first base station may send the power adjustment value information to the second base station, so that the second base station may adjust the transmission power of the radio resource according to the power adjustment value information.
  • the first base station may also send all or part of the parameters for determining the power adjustment value information to the second base station, so that the second base station can adjust the transmission power of the radio resource according to the power adjustment value information according to the power adjustment value information.
  • the embodiments of the present invention can dynamically adjust the transmission power of the radio resources, thereby reducing interference to neighboring cells, reducing waste of radio resources, and improving resource utilization.
  • the power adjustment method provided in this embodiment is applicable to a self-organizing network (Self-planning Organized Network (hereinafter referred to as SON), which can automatically realize dynamic adjustment of power, is fast and convenient, and saves the cost required for manual adjustment of power.
  • SON Self-planning Organized Network
  • the power adjustment method provided by the embodiment of the present invention is described as an example.
  • FIG. 4 is a flowchart of a power adjustment method according to still another embodiment of the present invention.
  • the first base station is the base station to which the micro cell (ie, the first cell) belongs
  • the second base station is the base station to which the macro cell (ie, the second cell) belongs
  • the macro cell is the neighboring cell of the micro cell as an example.
  • the power adjustment method may include:
  • Step 401 A base station of the micro cell configures a signal quality threshold.
  • the signal quality threshold may be configured by the OSS, or may be configured by an OSS/OAM system operator, or may be set by a manufacturer that generates the base station to which the micro cell belongs.
  • the signal quality threshold may be an RSRQ threshold or an SINR threshold.
  • Step 402 The base station to which the micro cell belongs measures the received power of the ABS of the macro cell.
  • Step 403 The base station to which the micro cell belongs indicates that the user equipment (UE2) in the micro cell measures the received power of the ABS of the macro cell. After step 403, step 404 is performed;
  • Step 404 The base station to which the micro cell belongs receives the measurement result reported by the UE.
  • Step 405 The base station to which the micro cell belongs determines the power adjustment value information according to the obtained received power (that is, the measurement result of the received power of the ABS of the macro cell reported by the UE) and the signal quality threshold, and sends the power adjustment value information to the macro cell. Base station. Alternatively, the base station to which the micro cell belongs determines the power adjustment value information according to the obtained received power and the signal quality of the micro cell, and sends the power adjustment value information to the base station to which the macro cell belongs.
  • the base station to which the micro cell belongs may determine the power adjustment value information of the macro cell according to the obtained received power, the signal quality threshold, and the total power of the received signal of the UE or the total downlink power (P t tal ) received by the base station to which the micro cell belongs. Then, the base station to which the micro cell belongs may send the power adjustment value information to the base station to which the macro cell belongs through the X2 interface, the S1 interface, the Uu interface, or the OSS.
  • the base station to which the micro cell belongs may determine the degree of interference of the micro cell according to the obtained ratio of the received power and the signal quality of the micro cell (for example, the received power obtained by the UE in the micro cell for measuring the micro cell) (eg, using R t Kran ⁇ said). For example, if R tolCTan ⁇ is greater than the threshold THP_CIHigh, the interference is large, and the base station to which the micro cell belongs is regarded as the base station to which the macro cell belongs and needs to reduce the transmission power of the ABS downlink data.
  • the interference is small, and the base station to which the micro cell belongs is regarded as the base station to which the macro cell belongs can increase the transmission power of the ABS downlink data. If R t . lCTan ⁇ is less than the threshold THP_CIHigh and greater than the threshold THP_CILow, indicating that the interference can be tolerated.
  • the base station to which the microcell belongs is regarded as the base station to which the macro cell belongs and does not need to adjust the transmission power of the ABS downlink data. Further, the base station to which the micro cell belongs may determine the power adjustment value information by using a list query, and send the power adjustment value information to the base station to which the macro cell belongs.
  • the situation of increasing power and reducing power may correspond to different lists respectively, or may correspond to different parts in the same list. It should be noted that the threshold THP_CIHigh and the threshold THP_CILow can be regarded as signal quality thresholds.
  • Step 406 The base station to which the macro cell belongs adjusts the transmit power of the ABS according to the power adjustment value information.
  • Step 407 The base station to which the micro cell belongs sends the received power to the base station to which the macro cell belongs.
  • the base station to which the micro cell belongs may send the received power obtained by the foregoing to the second base station through an X2 interface, an S1 interface, a Uu interface, or an OSS.
  • Step 408 The base station of the macro cell determines the power adjustment value information according to the obtained received power and the signal quality threshold, and adjusts the transmit power of the ABS according to the power adjustment value information.
  • the manner in which the base station and/or the second base station of the micro cell obtain the signal quality threshold is different.
  • the base station and/or the second base station of the micro cell obtain the signal quality threshold is different.
  • the base station to which the micro cell belongs may also not transmit the obtained received power, but according to the obtained received power and the signal quality of the micro cell (for example, the received power obtained by the UE in the micro cell for measuring the micro cell)
  • the ratio determines the degree to which the microcell is disturbed (as indicated by R t lerance ) and is based on the R t . Lerance to macro
  • the level at which the base station to which the cell belongs transmits power adjustment. If R t . lCTa ⁇ is greater than the threshold THP_CIHigh, then the power adjustment level is high. If R t . lCTa ⁇ is less than the threshold THP_CILow, then the power adjustment level is low.
  • the base station to which the macro cell belongs determines the power adjustment value information according to the level of the power adjustment, and adjusts the transmission power of the ABS according to the power adjustment value information. For example, if the base station of the macro cell queries that the power adjustment level in the list is high corresponding to -3 dB, it can be determined that the power adjustment value information is -3 dB, and the power is reduced by 3 dB. For another example, if the base station of the macro cell queries that the power adjustment level in the list is low corresponding to the interval of 3 dB to 7 dB, the power adjustment value information may be determined to be 5 dB, and the power is increased by 5 dB.
  • the power adjustment method provided by each of the foregoing embodiments may further determine the power adjustment value information by using the following implementation manner. It should be noted that the method for determining the power adjustment value information by the second base station is used as an example. The first base station may also determine the power adjustment value information in the same manner, that is, the first base station needs to obtain the power adjustment value information. The values of the parameters are determined, and the power adjustment value information is determined according to the formula, which will not be described later.
  • the signal quality threshold is an RSRQ threshold
  • the second base station determines the ABS according to the formula (1).
  • RSRQ the power adjustment value information of the second base station to the ABS transmission power
  • P t . lCTan ⁇ the power adjustment value information of the second base station to the ABS transmission power
  • the RSRQ of the ABS is greater than the preset RSRQ threshold. If the formula (2) is established, the power adjustment value information needs to satisfy the formula (3).
  • the possible values of lerance can be randomly or Other methods determine P t .
  • One of the values of lCTan ⁇ is the power adjustment value information.
  • the RSRP SCTVing indicates the reference signal received power (RSRP) of the first cell, that is, the received power obtained by the first base station, and P total is the total received power of the UE in the first cell (such as the UE1 or UE2 described above) (for example) It is obtained by the first base station by measuring or receiving the measurement result reported by the UE.
  • the RSRQ target is the RSRQ threshold.
  • PL represents the path loss of the second base station to the UE in the first cell.
  • PL can be obtained as follows. First, determining one or more PL values corresponding to the location of the UE according to formula (4), and if there are multiple PL values, determining a PL value according to multiple PL values, for example, taking any value of multiple PL values or Mean.
  • the determining process of the PL may be performed by the first base station, and the first base station may first acquire the second base station from the second base station. Transmit power information.
  • the determining process of the PL may also be performed by the second base station, and the first base station first sends the received power (for example, the received power measured and reported by the UE) acquired by the first base station to the second base station.
  • the sending power information of the second base station may be sent by the second base station to the first base station by using an X2 interface, an S1 interface, a Uu interface, or an OSS.
  • the received power obtained by the first base station may be sent by the first base station to the second base station through an X2 interface, an S1 interface, a Uu interface, or an OSS.
  • the signal quality threshold is the SINR threshold
  • the second base station determines the ABS according to the formula (5).
  • SINR the power adjustment value information of the second base station to the ABS transmission power
  • P t . lCTan ⁇ the power adjustment value information of the second base station to the ABS transmission power
  • the SINR is greater than the preset SINR threshold. If equation (6) is established, the power adjustment value information needs to satisfy equation (7).
  • RSRP SCTVing represents the reference signal received power (RSRP) of the first cell, that is, the received power obtained by the first base station.
  • ⁇ is the total received power of 1 ⁇ (such as UE1 or UE2 above) in the first cell (for example, obtained by the first base station by measuring or receiving the measurement result reported by the UE).
  • the SINR target is the SINR threshold.
  • the PL indicates the path loss of the second base station to the UE in the first cell.
  • the signal quality threshold is a reference signal received power threshold of the second cell controlled by the second base station received by the UE in the first cell (using TH And indicating that the received power obtained by the second base station includes the reference signal received power
  • the process of determining, by the second base station, the power adjustment value information according to the obtained received power and the signal quality threshold may be: First, the second base station receives power according to the obtained reference signal. And determining, by the transmission power of the reference signal, a path loss (indicated by PL) of the UE that the second base station reaches in the first cell, for example, taking a ratio of the obtained reference signal received power to the transmission power of the reference signal as PL.
  • the second base station may determine the maximum transmit power ⁇ according to the reference signal received by the first cell, the power threshold TH, and the path loss PL of the second base station to the UE in the first cell, for example, the value of TH/PL is taken as .
  • the second base station determines the power adjustment value information (indicated by P t . lCTan ⁇ ) according to the transmission power previously used and the transmission power used in the previous time (indicated by ⁇ ), for example, the difference between PMAX and Po is taken as Pt. lCTan ⁇ .
  • the above embodiment provides an optimized adjustment mechanism for transmitting data in the form of low power in the ABS.
  • the dynamic adjustment of the transmission power of the ABS reduces the interference to adjacent cells, reduces the waste of the spectrum, and improves the spectrum efficiency.
  • the method for adjusting power is applicable to SON, that is, the automatic adjustment of power dynamics is fast and convenient, and the cost required for manually adjusting power is saved.
  • the embodiment shown in FIG. 4 is described by using the radio resource as the ABS as an example, but the embodiment of the present invention is not limited thereto.
  • the power adjustment method provided by the embodiment of the present invention may also be applied to a scenario of carrier aggregation or beamforming.
  • the following describes the case where the radio resource is a carrier, or a beam.
  • FIG. 5 is an embodiment of the present invention.
  • a schematic diagram of a carrier aggregation cell provided.
  • the first cell has three carriers of carrier 1, carrier 2, and carrier 3.
  • the interference of the second cell can be regarded as being from a certain carrier (for example, carrier 3), and the power adjustment method for each carrier can adopt the foregoing implementation.
  • the various methods and examples provided by the example enable power adjustment under the SON automatic adjustment mechanism.
  • the carrier 3 as an example, the parameter values involved in the power adjustment method provided by the foregoing embodiment are no longer measured results for the ABS, but are obtained by measuring the carrier 3, such as parameters such as RSRP, RSRQ, or SINR.
  • the measurement or measurement result acquisition is required for carrier 1, carrier 2 or carrier 3, respectively, to determine the power adjustment value information and achieve power adjustment.
  • FIG. 6 is a schematic diagram of a beamforming cell according to an embodiment of the present invention. As shown in FIG. 6, the first cell and the second cell are neighboring cells, and the time is the composition of four beams in the first cell with t frequency f. Examples are as follows:
  • Beam2 (t 1 , f 2 ); (t 2 , f 3 ); (t3, f4); (t4, fi);
  • Beam3 ( ⁇ 3 ); ( 3 ⁇ 4 , 3 , ); (t 4 , f 2 );
  • Beam4 (t 3 , f 2 ); (t 4 , f 3 );
  • the second cell may know in advance the time-frequency situation of the Beam configuration in the first cell.
  • the base station to which the second cell belongs is configured according to the previously configured Beam in the first cell.
  • the BEA corresponding to the RSRP, the RSRQ, or the SINR obtained by the UE measurement at the edge of the second cell may be compared, and the multiple methods and examples provided in the foregoing embodiments are used to implement the SON automatic adjustment mechanism for the Beam. Power adjustment.
  • FIG. 7 is a schematic diagram of a base station (hereinafter referred to as a first base station) according to an embodiment of the present invention.
  • the first base station in this embodiment may implement the action performed by the first base station in the power adjustment method provided in the foregoing embodiment.
  • the first base station may include:
  • the first processor 71 is configured to determine power adjustment value information of the second cell according to the signal quality threshold and the signal quality information of the radio resource of the second cell;
  • the transmitter 72 is configured to send the power adjustment value information of the second cell determined by the first processor 71 to the second base station, so that the second base station adjusts the transmit power of the radio resource of the second cell according to the power adjustment value information;
  • the first cell controlled by the first base station and the second cell controlled by the second base station are neighboring cells.
  • the first base station may be referred to as a base station to which the micro cell belongs
  • the second cell is a macro cell
  • the neighboring macro cell may be referred to as a micro cell
  • the second base station may be referred to as a macro cell.
  • the base station to which it belongs but the embodiments of the present invention are not limited thereto.
  • the first processor 71 may determine the power of the second cell according to the signal quality information of the radio resource of the second cell, the signal quality threshold, the total power of the received signal of the user equipment, and the path loss of the second base station to the user equipment. Adjusting the value information, the serving cell of the user equipment is the first cell; or, the first processor 71 may be based on the signal quality information of the radio resource of the second cell, the signal quality threshold, the downlink total power received by the first base station, and the second The path loss of the base station to the user equipment determines the power adjustment value information of the second cell, and the serving cell of the user equipment is the first cell.
  • the path loss of the second base station to the user equipment is determined by the first processor 71 according to the transmit power information of the second base station and the received power of the radio resource of the second cell, where the transmit power information of the second base station is the second
  • the base station is sent to the first base station by using the X2 interface, the S1 interface, the Uu interface, or the OSS; or the path loss of the second base station to the user equipment is based on the second base station according to the second base station's transmit power information and the second cell's radio resource.
  • the received power of the radio resource of the second cell is determined by the received power, and is sent by the first base station to the second base station by using an X2 interface, an S1 interface, a Uu interface, or an OSS.
  • the signal quality information of the radio resource of the second cell includes: a received power of the radio resource of the second cell or a measured value of the signal quality of the radio resource of the second cell.
  • the signal quality information of the radio resource of the second cell is obtained by the first base station performing measurement on the second cell.
  • the signal quality information of the radio resource of the second cell is a measurement result sent by the user equipment to the first base station after the second cell is measured according to the indication of the first base station, where the serving cell of the user equipment is the first Community.
  • the above signal quality threshold is a reference signal received power threshold, or a reference signal received quality threshold, or a signal power and interference plus noise power ratio threshold.
  • the first processor 71 may determine the power adjustment value information of the second cell according to the signal quality threshold, and the ratio of the signal quality information of the radio resource of the second cell to the signal quality of the first cell; or, the first The processor 71 may receive the power threshold according to the signal quality threshold when the signal quality threshold is the reference signal, and the received power threshold, the reference signal received power, the transmit power of the reference signal, and the previously adopted The transmit power determines power adjustment value information of the second cell.
  • the transmitter 72 can transmit the power adjustment value information of the second cell to the second base station through the X2 interface, the S1 interface, the Uu interface, or the OSS.
  • the power adjustment value information may include any one of the following:
  • the level of power adjustment or the code that indicates the level is the level of power adjustment or the code that indicates the level.
  • the radio resource in this embodiment may include any one of almost blank subframe, carrier, and beam.
  • the foregoing first base station can dynamically adjust the transmission power of the radio resources, thereby reducing interference to adjacent cells and reducing waste of radio resources.
  • FIG. 8 is a schematic diagram of a base station (hereinafter referred to as a second base station) according to an embodiment of the present invention.
  • the second base station in this embodiment may implement the action performed by the second base station in the power adjustment method provided in the foregoing embodiment.
  • the second base station may include:
  • a receiver 81 configured to acquire signal quality information of a radio resource of the second cell
  • the second processor 82 is configured to determine, according to the signal quality information of the radio resource of the second cell, the power adjustment value information of the second cell, and adjust the transmit power of the radio resource of the second cell according to the power adjustment value information;
  • the first cell controlled by one base station and the second cell controlled by the second base station are adjacent cells.
  • the first base station may be referred to as a base station to which the micro cell belongs
  • the second cell is a macro cell
  • the neighboring macro cell may be referred to as a micro cell
  • the second base station may be referred to as a macro cell.
  • the base station to which it belongs but the embodiments of the present invention are not limited thereto.
  • the second processor 82 may determine the second cell according to the signal quality information of the radio resource of the second cell, the signal quality threshold, the total received power of the user equipment, and the path loss of the second base station to the user equipment.
  • the power adjustment value information, the serving cell of the user equipment is the first cell; or the second processor 82 may be based on the signal quality information of the radio resource of the second cell, the signal quality threshold, the downlink total power received by the first base station, and the first
  • the path loss of the second base station to the user equipment determines the power adjustment value information of the second cell, and the serving cell of the user equipment is the first cell.
  • the path loss of the second base station to the user equipment is determined by the first base station according to the transmit power information of the second base station and the received power of the radio resource of the second cell, where the transmit power information of the second base station is
  • the second base station is sent to the first base station by using the X2 interface, the S1 interface, the Uu interface, or the OSS; or the path loss of the second base station to the user equipment is the second base station according to the second base station's transmit power information and the second cell's radio resource.
  • the received power of the radio resource of the second cell is determined by the first base station to be sent to the second base station by using the X2 interface, the S1 interface, the Uu interface, or the OSS.
  • the signal quality information of the radio resource of the second cell may include: a received power of the radio resource of the second cell or a measured value of the signal quality of the radio resource of the second cell.
  • the signal quality information of the radio resource of the second cell may be a measurement result sent by the first base station to the second base station after the measurement obtained by measuring the second cell; or the signal quality of the radio resource of the second cell
  • the information is a measurement result that is sent by the first base station to the second base station after the user equipment measures the second cell according to the indication of the first base station, and the serving cell of the user equipment is the first cell.
  • the above signal quality threshold may be a reference signal received power threshold, or a reference signal received quality threshold, or a signal power to interference plus noise power ratio threshold.
  • the second processor 82 may determine the power adjustment value information of the second cell according to the signal quality threshold, and the ratio of the signal quality information of the radio resource of the second cell to the signal quality of the first cell; or, the second The processor 82 may receive the power threshold according to the reference signal when receiving the power threshold, and the received power threshold, the reference signal received power, the transmit power of the reference signal, and the previously used The transmit power determines power adjustment value information of the second cell.
  • the receiver 81 may receive the signal quality of the first cell sent by the first base station through the X2 interface, the S1 interface, the Uu interface, or the OSS.
  • the level of power adjustment or the code that indicates the level is the level of power adjustment or the code that indicates the level.
  • the radio resource in this embodiment may include any one of almost blank subframe, carrier, and beam.
  • the foregoing second base station can dynamically adjust the transmission power of the radio resource, thereby reducing interference to neighboring cells and reducing waste of radio resources.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
  • the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: Modifications of the technical solutions described in the foregoing embodiments, or equivalents of some of the technical features, are not included in the scope of the technical solutions of the embodiments of the present invention.

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Description

功率调整方法和基站 本申请要求于 2011年 4月 7日提交中国专利局、 申请号为 CN 201110086878.8、 发 明名称为"功率调整方法和基站"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 本发明实施例涉及通信技术领域， 尤其涉及一种功率调整方法和基站。 发明背景 第三代合作伙伴计划（Third Generation Partnership Project; 以下简称： 3GPP) 引入 了时间域的小区间干扰协调 （Inter-Cell Interference Coordination; 以下简称： ICIC) 干 扰协调机制，通过向用户设备（User Equipment;以下简称： UE)发送几乎空子帧（Almost Blank Subframe; 以下简称： ABS ) 解决大小基站混合部署时的控制信道干扰问题时， ABS中不传输数据， 即 ABS只能是空帧， 因此， 虽然能够降低干扰， 但是存在较大的 频谱资源浪费。 发明内容
本发明实施例提供一种功率调整方法和基站， 以实现动态调整无线资源的发送功 率。
本发明实施例提供一种功率调整方法， 包括：
第一基站根据信号质量门限和第二小区的无线资源的信号质量信息确定所述第二 小区的功率调整值信息；
所述第一基站将所述第二小区的功率调整值信息发送给第二基站， 以使所述第二基 站根据所述功率调整值信息调整所述第二小区的无线资源的发送功率；
其中， 所述第二小区为第一小区的相邻小区， 所述第一小区受所述第一基站控制， 所述第二小区受所述第二基站控制。
本发明实施例还提供一种功率调整方法， 包括：
第二基站获取第二小区的无线资源的信号质量信息；
所述第二基站根据所述第二小区的无线资源的信号质量信息确定所述第二小区的 功率调整值信息， 并根据所述功率调整值信息调整所述第二小区的无线资源的发送功 率；
其中， 所述第二小区为第一小区的相邻小区， 所述第一小区受第一基站控制， 所述 第二小区受所述第二基站控制。
本发明实施例还提供一种基站， 包括：
第一处理器，用于根据信号质量门限和第二小区的无线资源的信号质量信息确定所 述第二小区的功率调整值信息；
发送器，用于将所述第一处理器确定的所述第二小区的功率调整值信息发送给第二 基站， 以使所述第二基站根据所述功率调整值信息调整所述第二小区的无线资源的发送 功率；其中，所述第二小区为第一小区的相邻小区，所述第一小区受所述第一基站控制， 所述第二小区受所述第二基站控制。
本发明实施例还提供一种基站， 包括：
接收器， 用于获取第二小区的无线资源的信号质量信息；
第二处理器，用于根据所述第二小区的无线资源的信号质量信息确定所述第二小区 的功率调整值信息， 并根据所述功率调整值信息调整所述第二小区的无线资源的发送功 率； 其中， 所述第二小区为第一小区的相邻小区， 所述第一小区受第一基站控制， 所述 第二小区受所述第二基站控制。
本发明实施例可以实现动态调整无线资源的发送功率，进而可以实现减少对相邻小 区的干扰， 同时降低对无线资源的浪费。 附图简要说明 为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有 技术描述中所需要使用的附图作一简单地介绍， 显而易见地， 下面描述中的附图是本发 明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动的前提下， 还可 以根据这些附图获得其他的附图。
图 1为本发明的一个实施例提供的功率调整方法流程图；
图 2为本发明的另一个实施例提供的功率调整方法流程图；
图 3为本发明的再一个实施例提供的功率调整方法流程图；
图 4为本发明的又一个实施例提供的功率调整方法流程图；
图 5为本发明的一个实施例提供的载波聚合小区示意图；
图 6为本发明的一个实施例提供的波束成形小区示意图； 图 7为本发明的一个实施例提供的基站示意图；
图 8为本发明的一个实施例提供的基站示意图。 实施本发明的方式 为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发明实施例中 的附图， 对本发明实施例中的技术方案进行清楚、 完整地描述， 显然， 所描述的实施例 是本发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技 术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的 范围。
图 1为本发明的一个实施例提供的功率调整方法流程图。 本实施例中， 第一基站控 制的第一小区和第二基站控制的第二小区为相邻小区，第一小区为第一用户设备（UE1 ) 的服务小区。 可选的， 第一小区为微小区时， 第一基站可称为微小区所属基站， 第二小 区为宏小区时， 可称为微小区的相邻宏小区， 第二基站可称为宏小区所属基站， 但本发 明各实施例并不仅限于此。
如图 1所示， 该功率调整方法可以包括：
步骤 101， 第一基站根据信号质量门限和第二小区的无线资源的信号质量信息确定 第二小区的功率调整值信息。
步骤 102， 第一基站将第二小区的功率调整值信息发送给第二基站， 以使第二基站 根据该功率调整值信息调整第二小区的无线资源的发送功率。
上述实施例可以实现动态调整无线资源的发送功率，进而可以实现减少对相邻小区 的干扰， 同时降低对无线资源的浪费。
图 2为本发明的另一个实施例提供的功率调整方法流程图。 本实施例中， 第一基站 控制的第一小区和第二基站控制的第二小区为相邻小区， 第一小区为第一用户设备 (UE1 )的服务小区。可选的， 第一小区为微小区时， 第一基站可称为微小区所属基站， 第二小区为宏小区时， 可称为微小区的相邻宏小区， 第二基站可称为宏小区所属基站， 但本发明各实施例并不仅限于此。
如图 2所示， 该功率调整方法可以包括：
步骤 201， 第二基站获取第二小区的无线资源的信号质量信息。
步骤 202， 第二基站根据第二小区的无线资源的信号质量信息确定第二小区的功率 调整值信息， 并根据该功率调整值信息调整第二小区的无线资源的发送功率。 上述实施例可以实现动态调整无线资源的发送功率，进而可以实现减少对相邻小区 的干扰， 同时降低对无线资源的浪费。
下面对本发明实施例提供的功率调整方法进行举例介绍。
图 3为本发明的再一个实施例提供的功率调整方法流程图。 本实施例中， 第一基站 控制的第一小区和第二基站控制的第二小区为相邻小区， 第一小区为第一用户设备 (UE1 )的服务小区。可选的， 第一小区为微小区时， 第一基站可称为微小区所属基站， 第二小区为宏小区时， 可称为微小区的相邻宏小区， 第二基站可称为宏小区所属基站， 但本发明各实施例并不仅限于此。
如图 3所示， 该功率调整方法可以包括：
步骤 301， 第一基站获得第二小区的无线资源的接收功率或信号质量。
例如， 第一基站对第二小区的无线资源的接收功率或信号质量进行测量， 从而获得 无线资源的接收功率或信号质量的测量值。 又如， 第一基站指示 UE1 对第二小区的无 线资源的接收功率或信号质量进行测量， 并接收 UE1 发送给第一基站的无线资源的接 收功率或信号质量的测量值。
步骤 302， 第一基站将功率调整值信息发送给第二基站， 以使第二基站根据该功率 调整值信息调整上述无线资源的发送功率。 其中， 该功率调整值信息可以是第一基站通 过 X2接口、 S1接口、 Uu接口（即空中接口或简称空口）或者操作支持子系统（ Operation Support System; 以下简称： OSS) 发送给第二基站的。
本实施例中， 两个基站之间通过 Uu接口发送信息， 包括一个基站在其控制的一个 小区的广播中发送信息， 另一个基站读取该广播从而获得该信息， 或者另一基站接收 UE在上述小区边界读取该广播后上报的信息。
可选的， 功率调整值信息是第一基站根据信号质量门限和获得的接收功率确定的。 例如， 第一基站根据获得的接收功率、 信号质量门限和 UE1 的接收信号总功率或第一 基站接收的下行总功率 （Ptotal) 确定第二小区的功率调整值信息。 需要说明的是， 本发 明实施例中的第一基站接收的下行总功率是指第一基站作为接收方接收其他基站（如第 二基站）发送的下行信号的总功率。 可选的， 功率调整值信息是第一基站根据信号质量 门限和获得的信号质量确定的。 例如， 第一基站根据获得的信号质量、 信号质量门限和 UE1的接收信号总功率或第一基站接收的下行总功率 （Pt。tal) 确定第二小区的功率调整 值信息。
在步骤 302的替代步骤中，第一基站可以将获得的接收功率或信号质量发送给第二 基站， 以使第二基站确定功率调整值信息， 并根据该功率调整值信息调整上述无线资源 的发送功率。其中，第二基站获得的接收功率或信号质量可以是第一基站通过 X2接口、 S1接口、 Uu接口或者 OSS发送给第二基站的。
可选的， 功率调整值信息是第二基站根据获得的接收功率或信号质量确定的。 可选的， 功率调整值信息是第二基站根据获得的接收功率和信号质量门限确定的， 或者， 是第二基站根据获得的信号质量和信号质量门限确定的。 例如， 信号质量门限为 参考信号接收质量 （Reference Signal Received Quality; 以下简称： RSRQ) 门限时， 第 二基站根据获得的接收功率、 RSRQ门限、 UE1的接收信号总功率或第一基站接收的下 行总功率（Ptotal)和第二基站到达 UE1的路损确定功率调整值信息， 或者， 第二基站根 据获得的信号质量、 RSRQ门限、 UE1的接收信号总功率或第一基站接收的下行总功率
( Ptotal )和第二基站到达 UE1的路损确定功率调整值信息。 又如， 信号质量门限为信号 功率与干扰加噪声功率比 （Signal to Interference plus Noise Ratio; 以下简称： SINR) 门 限时， 第二基站可以根据获得的接收功率、 SINR门限、 UE1的接收信号总功率或第一 基站接收的下行总功率（ 。^)和第二基站到达 UE1的路损确定功率调整值信息，或者， 第二基站根据获得的信号质量、 SINR门限、 UE1的接收信号总功率或第一基站接收的 下行总功率 （Pt。tal) 和第二基站到达 UE1的路损确定功率调整值信息。
本实施例中， 上述信号质量门限可以是第一基站或第二基站预先获得的， 且获得方 式有多种。例如，可以由操作支持子系统配置，也可以由 OSS/操作、管理和维护（Operation Administration and Maintenance, OAM) 系统运营商配置， 也可以由生产基站的厂商配 置。 又如， 第一基站获得的信号质量门限可以由第一基站通过 X2接口、 或 S1接口、 Uu接口或 0SS发送给第二基站， 可选的， 第一基站将信号质量门限与第一基站获得的 接收功率 （或信号质量）一并发送给第二基站， 或者， 通过消息将信号质量门限发送给 第二基站， 而不与第一基站获得的接收功率 （或信号质量） 一并发送。 又如， 第二基站 获得的信号质量门限可以发送给第一基站，可参见上述第一基站将信号质量门限发送给 第二基站的举例， 此处不再赘述。又如， 第一基站和 /或第二基站可以使用默认的信号质 量门限。 本实施例对第一基站和第二基站获得信号质量门限的方式不作限定。
可选的，本实施例中的功率调整值信息可以为功率调整的目标值或指示该目标值的 代码。 功率调整值信息也可以为功率调整的幅度值或指示该幅度值的代码， 例如， 功率 调整的幅度值为功率调整的增加值或减小值。功率调整值信息还可以是功率调整的等级 或指示该等级的代码， 例如， 功率调整的高、 中、 低等级别。 另外， 本实施例中的功率 调整值信息也可以采用数值、 代码和等级以外的形式来表示， 能够使功率调整值信息的 接收方确定含义即可， 本实施例不作具体限定。
本实施例中的无线资源可以为时域资源（例如 ABS) ， 也可以为频域资源（例如载 波， 包括主载波和辅载波等） ， 还可以为时频资源 （例如波束） ， 本实施例对无线资源 的具体形式不作限定。
本实施例中， 第一基站可以在确定功率调整值信息之后， 将功率调整值信息发送给 第二基站， 从而使第二基站可以根据该功率调整值信息调整无线资源的发送功率。 第一 基站也可以将用于确定功率调整值信息的全部或部分参数发送给第二基站，从而使第二 基站可以根据功率调整值信息， 并根据该功率调整值信息调整无线资源的发送功率。 本 发明实施例可以实现动态调整无线资源的发送功率，进而可以实现减少对相邻小区的干 扰， 同时降低对无线资源的浪费， 提高资源利用率。 进一步的， 本实施例提供的功率调 整方法适用于自组织网络 （Self-planning Organized Network; 以下简称： SON) ， 能自 动化实现对功率的动态调整， 快速便捷， 节约人工调整功率所需的成本。
下面对本发明实施例提供的功率调整方法进行举例介绍。
图 4为本发明的又一个实施例提供的功率调整方法流程图，本实施例以无线资源为
ABS, 第一基站为微小区 （即第一小区） 所属基站， 第二基站为宏小区 （即第二小区） 所属基站， 宏小区为微小区的相邻小区为例进行说明。 如图 4所示， 该功率调整方法可 以包括：
步骤 401， 微小区所属基站配置信号质量门限。
可选的， 该信号质量门限可以由 OSS配置， 也可以由 OSS/OAM系统运营商配置， 也可以由生产该微小区所属基站的厂商设置， 本实施例对此不作限定。
可选的， 该信号质量门限可以为 RSRQ门限或者 SINR门限。
步骤 402， 微小区所属基站对宏小区的 ABS的接收功率进行测量。
在步骤 402之后， 步骤 405〜步骤 406被执行， 或者步骤 407〜步骤 408被执行。 步骤 403， 微小区所属基站指示微小区中的用户设备（UE2)对宏小区的 ABS的接 收功率进行测量。 在步骤 403之后， 步骤 404被执行；
步骤 404， 微小区所属基站接收 UE上报的测量结果。
在步骤 404之后， 步骤 405〜步骤 406被执行， 或者步骤 407〜步骤 408被执行。 本实施例中， 步骤 402与步骤 403〜步骤 404择一执行即可， 此外， 步骤 405〜步骤 406与步骤 407〜步骤 408择一执行即可， 本实施例对此不作限定。 步骤 405， 微小区所属基站根据获得的接收功率（即 UE上报的宏小区的 ABS的接 收功率的测量结果）和信号质量门限确定功率调整值信息， 并将该功率调整值信息发送 给宏小区所属基站。 或者， 微小区所属基站根据获得的接收功率和微小区的信号质量确 定功率调整值信息， 并将该功率调整值信息发送给宏小区所属基站。
例如， 微小区所属基站可以根据获得的接收功率、 信号质量门限和 UE的接收信号 总功率或微小区所属基站接收的下行总功率 （Pt。tal) 确定宏小区的功率调整值信息。 然 后， 微小区所属基站可以通过 X2接口、 S1接口、 Uu接口或者 OSS将上述功率调整值 信息发送给宏小区所属基站。
又如， 微小区所属基站可以根据获得的接收功率和微小区的信号质量的比值（例如 微小区中的 UE针对微小区进行测量所获得的接收功率） 确定微小区受干扰程度 （如用 Rt。kran∞表示） 。 例如， 如果 RtolCTan∞大于门限 THP_CIHigh， 则说明干扰较大， 微小区 所属基站视为宏小区所属基站需要降低 ABS下行数据的发送功率。如果 RtolCTan∞小于门 限 THP_CILow， 则说明干扰较小， 微小区所属基站视为宏小区所属基站可以升高 ABS 下行数据的发送功率。 如果 Rt。lCTan∞小于门限 THP_CIHigh且大于门限 THP_CILow， 则 说明干扰可以忍受， 微小区所属基站视为宏小区所属基站无需调整 ABS下行数据的发 送功率。 进一步的， 微小区所属基站可以通过列表查询， 确定功率调整值信息， 并将该 功率调整值信息发送给宏小区所属基站。 可选的， 升高功率和降低功率的情况可以分别 对应不同的列表， 也可以对应于同一列表中的不同部分。 需要说明的是， 可以将上述门 限 THP_CIHigh和门限 THP_CILow视为信号质量门限。
步骤 406， 宏小区所属基站根据该功率调整值信息调整 ABS的发送功率。
步骤 407， 微小区所属基站将获得的接收功率发送给宏小区所属基站。
例如， 微小区所属基站可以通过 X2接口、 S1接口、 Uu接口或者 OSS将上述获得 的接收功率发送给第二基站。
步骤 408， 宏小区所属基站根据获得的接收功率和信号质量门限确定功率调整值信 息， 并根据上述功率调整值信息调整 ABS的发送功率。
本实施例中，微小区所属基站和 /或第二基站获得信号质量门限的方式有多种，可参 见上述实施例中的举例， 此处不再赘述。
此外， 在步骤 407中， 微小区所属基站也可以不发送获得的接收功率， 而是根据获 得的接收功率和微小区的信号质量 （例如微小区中的 UE针对微小区进行测量所获得的 接收功率） 的比值确定微小区受干扰程度 （如用 Rt。lerance表示） ， 并根据该 Rt。lerance向宏 小区所属基站发送功率调整的等级。如果 Rt。lCTa ^大于门限 THP_CIHigh， 则功率调整的 等级为高。如果 Rt。lCTa ^小于门限 THP_CILow，则功率调整的等级为低。在步骤 408中， 宏小区所属基站根据功率调整的等级确定功率调整值信息， 并根据上述功率调整值信息 调整 ABS 的发送功率。 例如， 宏小区所属基站查询到列表中功率调整的等级为高对应 于 -3dB， 则可以确定功率调整值信息为 -3dB， 则功率降低 3dB。 又如， 宏小区所属基站 查询到列表中功率调整的等级为低对应于 3dB至 7dB的区间， 则可以确定功率调整值 信息为 5dB， 则功率升高 5dB。
除上述举例外，上述各实施例提供的功率调整方法还可以采用如下实现方式来确定 功率调整值信息。 需要说明的是， 如下以第二基站确定功率调整值信息的方式为例进行 说明， 第一基站也可采用相同的方式确定功率调整值信息， 即第一基站获取到确定功率 调整值信息所需的各参数取值， 并根据公式确定功率调整值信息， 后文将不再赘述。
例如， 以接收总功率为 UE1 的接收总功率为例： 本实施例的一种确定功率调整值 信息的实现方式中， 信号质量门限为 RSRQ门限， 第二基站根据式 （1 )确定 ABS上的 RSRQ。 假设第二基站对 ABS发送功率的功率调整值信息为 Pt。lCTan∞， 需要保证在调整 发送功率后， ABS的 RSRQ大于预设的 RSRQ门限， 即式 （2) 成立， 则功率调整值信 息需满足式 （3) 。
RSRQ― RSRPserving/(Pmacro + Pother + Pserving)― RSRPserving/ Ptotal
Figure imgf000010_0001
( 1 )
RSRPserving/ ( Ptotal +
Figure imgf000010_0002
RSRQtarget 式 ( 2 )
Ptolerance ― [(RSRPserving/RS Qtarget)" Ptotal] /PL 式 (3) 如果式 （3) 得到的 Ptolerance为一个区间或者包括多个 Pt。lerance的可能取值， 则可以 随机或采用其他方法确定 Pt。lCTan∞的一个取值为功率调整值信息。
其中， RSRPSCTVing表示第一小区的参考信号接收功率 （RSRP) ， 即为第一基站获得 的接收功率， Ptotal为第一小区中的 UE (如上述 UE1或 UE2) 的接收信号总功率 （例如 是第一基站通过测量或者接收 UE上报的测量结果从而获得的） 。 RSRQtarget 为 RSRQ 门限。 PL表示第二基站到达第一小区中的 UE的路径损耗 （Pathloss) 。 例如， PL可以 通过如下方式获得。 首先， 根据式 （4) 确定与 UE所在位置对应的一个或多个 PL值， 如果为多个 PL值， 再根据多个 PL值确定一个 PL值， 例如取多个 PL值的任一值或均 值。
PL =第一基站获取的接收功率 /第二基站的发送功率 式 （4)
PL 的确定过程可以由第一基站执行， 则第一基站可以先从第二基站获取第二基站 的发送功率信息。 PL 的确定过程也可以由第二基站执行， 则第一基站先向第二基站发 送第一基站获取的接收功率 （例如 UE测量并上报的接收功率） 。 可选的， 上述第二基 站的发送功率信息可以是第二基站通过 X2接口、 S1接口、 Uu接口或者 OSS发送给第 一基站的。 上述第一基站获取的接收功率可以是第一基站通过 X2接口、 S1 接口、 Uu 接口或者 OSS发送给第二基站的。
又如， 以接收总功率为 UE1 的接收总功率为例： 本实施例的一种确定功率调整值 信息的实现方式中， 信号质量门限为 SINR门限， 第二基站根据式 （5) 确定 ABS上的 SINR。 假设第二基站对 ABS发送功率的功率调整值信息为 Pt。lCTan∞， 需要保证在调整发 送功率后， SINR大于预设的 SINR门限， 即式 （6) 成立， 则功率调整值信息需满足式 (7) 。
SINR― Pserving/ (Ptotal ~ P serving)
Figure imgf000011_0001
5 )
Pserving/ (Ptotal Pserving + PtoleranceXPL) > SINRtarget 式 （6)
Ptolerance― [(Pserving/SINRtarget) Ptotal + Pserving] /PL (7) 其中， RSRPSCTVing表示第一小区的参考信号接收功率 （RSRP) ， 即为第一基站获得 的接收功率， 。^为第一小区中的1^ (如上述 UE1或 UE2) 的接收信号总功率 （例如 是第一基站通过测量或者接收 UE上报的测量结果从而获得的） 。 SINRtarget为 SINR门 限。 PL表示第二基站到达第一小区中的 UE的路径损耗， PL的获得方式可以参见如上 举例和说明， 此处不再赘述。
又如， 本实施例的一种确定功率调整值信息的实现方式中， 信号质量门限为第一小 区中的 UE接收到的来自第二基站控制的第二小区的参考信号接收功率门限 （用 TH表 示） ， 第二基站获得的接收功率包括参考信号接收功率， 第二基站根据获得的接收功率 和信号质量门限确定功率调整值信息的过程可以为： 首先， 第二基站根据获得的参考信 号接收功率以及参考信号的发送功率， 确定第二基站到达第一小区中的 UE的路径损耗 (用 PL表示） ， 例如， 将获得的参考信号接收功率与参考信号的发送功率的比值作为 PL。 另外， PL 的获得方式可以参见如上举例和说明， 此处不再赘述。 接着， 第二基站 可以根据第一小区提供的参考信号接收功率门限 TH 以及第二基站到达第一小区中的 UE的路径损耗 PL， 确定最大发送功率 ΡΜΑΧ, 例如， 将 TH/PL的值作为 ΡΜΑΧ。 最后， 根据 ΡΜΑΧ和之前采用的发送功率 （以 Ρο表示某时刻采用的发送功率） ， 第二基站确定 功率调整值信息 （用 Pt。lCTan∞表示） ， 例如， 将 PMAX与 Po的差值作为 Pt。lCTan∞。
上述实施例对在 ABS 中以低功率的形式传输数据提供了优化的调整机制， 这样实 现了 ABS中以低功率的形式传输数据时， 通过动态调整 ABS的发送功率， 既减少了对 相邻小区的干扰， 又降低了频谱浪费， 提高频谱效率。 进一步的， 该调整功率的方法适 用于 SON, 即自动化实现对功率的动态调整， 快速便捷， 节约了人工调整功率所需的成 本。
本发明图 4所示实施例以无线资源为 ABS为例进行说明， 但本发明实施例并不仅 限于此， 本发明实施例提供的功率调整方法还可以应用于载波聚合或波束成形的场景 中， 以下针对无线资源为载波） ， 或波束的情况进行说明。
在 载波聚合的场景下， 一个小区将会由不同频率的多个载波构建而成， 以 3个载 波小区为例， 载波聚合小区结构可以如图 5所示， 图 5为本发明的一个实施例提供的载 波聚合小区示意图。
图 5中， 第一小区有载波 1、 载波 2和载波 3三个载波， 第二小区的干扰可以看 作是来自某一个载波 （例如载波 3) ， 对于各个载波的功率调整方法可以采用上述实施 例提供的多种方法及举例， 从而实现 SON 自动化调整机制下的功率调整。 以载波 3为 例， 上述实施例提供的功率调整方法所涉及的参数取值不再是针对 ABS 的测量结果， 而是针对载波 3进行测量所得的结果， 例如 RSRP、 RSRQ或 SINR等参数。 在图 5所 示场景中， 需要针对载波 1、 载波 2或载波 3分别进行测量或测量结果的获取， 从而确 定功率调整值信息， 并实现功率调整。
在波束成形（Beam Forming) 的场景下， 一个小区往往由多个波束（beam)组合而 成。 Beam是时间和频率复用的结合体。 图 6为本发明的一个实施例提供的波束成形小 区示意图， 如图 6所示， 第一小区和第二小区为相邻小区， 时刻为 t频率为 f的第一小 区中四个 beam的构成举例如下：
Beaml： (t1，f1);(t2，f2);(t3，f3);(t4，f4);
Beam2: (t1,f2);(t2,f3);(t3,f4);(t4,fi);
Beam3: (^3);(¾, 3, )； (t4,f2);
Beam4: ； (t3,f2);(t4,f3);
对于第一小区的波束成形， 第二小区可以预先获知第一小区中 Beam配置的时频情 况。 第二小区边缘的 UE在 （tx， fx) 上测量获得第一小区的 RSRP、 RSRQ禾 或 SINR 等测量结果之后， 第二小区所属的基站根据预先获知的第一小区中 Beam配置的时频情 况，可以对照出第二小区边缘的 UE测量获得的 RSRP、 RSRQ或 SINR所对应的 Beam, 采用上述实施例提供的多种方法及举例， 从而实现 SON 自动化调整机制下的对 Beam 的功率调整。
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步骤可以通过程 序指令相关的硬件来完成， 前述的程序可以存储于一计算机可读取存储介质中， 该程序 在执行时， 执行包括上述方法实施例的步骤； 而前述的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介质。
图 7为本发明的一个实施例提供的基站（以下称为第一基站）示意图， 本实施例中 的第一基站可以实现上述实施例提供的功率调整方法中第一基站执行的动作。如图 7所 示， 该第一基站可以包括：
第一处理器 71，用于根据信号质量门限和第二小区的无线资源的信号质量信息确定 第二小区的功率调整值信息；
发送器 72， 用于将第一处理器 71确定的第二小区的功率调整值信息发送给第二基 站， 以使第二基站根据该功率调整值信息调整第二小区的无线资源的发送功率； 其中， 第一基站控制的第一小区和第二基站控制的第二小区为相邻小区。 可选的， 第一小区为 微小区时， 第一基站可称为微小区所属基站， 第二小区为宏小区时， 可称为微小区的相 邻宏小区， 第二基站可称为宏小区所属基站， 但本发明各实施例并不仅限于此。
本实施例中， 第一处理器 71可以根据第二小区的无线资源的信号质量信息、 信号 质量门限、用户设备的接收信号总功率和第二基站到达用户设备的路径损耗确定第二小 区的功率调整值信息， 该用户设备的服务小区为第一小区； 或者， 第一处理器 71可以 根据第二小区的无线资源的信号质量信息、 信号质量门限、 第一基站接收的下行总功率 和第二基站到达用户设备的路径损耗确定第二小区的功率调整值信息，该用户设备的服 务小区为第一小区。
其中， 第二基站到达用户设备的路径损耗是第一处理器 71根据第二基站的发送功 率信息与第二小区的无线资源的接收功率确定的， 其中， 第二基站的发送功率信息是第 二基站通过 X2接口、 S1接口、 Uu接口或者 OSS发送给第一基站的； 或者， 第二基站 到达用户设备的路径损耗是第二基站根据第二基站的发送功率信息与第二小区的无线 资源的接收功率确定的， 第二小区的无线资源的接收功率是第一基站通过 X2接口、 S1 接口、 Uu接口或者 OSS发送给第二基站的。
本实施例中， 第二小区的无线资源的信号质量信息包括： 第二小区的无线资源的接 收功率或第二小区的无线资源的信号质量的测量值。
第二小区的无线资源的信号质量信息是第一基站通过对第二小区进行测量获得的 测量结果； 或者， 第二小区的无线资源的信号质量信息是用户设备根据第一基站的指示 对第二小区进行测量之后， 发送给第一基站的测量结果， 该用户设备的服务小区为第一 小区。
上述信号质量门限为参考信号接收功率门限， 或者参考信号接收质量门限， 或者信 号功率与干扰加噪声功率比门限。
本实施例中， 第一处理器 71可以根据信号质量门限， 以及第二小区的无线资源的 信号质量信息与第一小区的信号质量的比值确定第二小区的功率调整值信息； 或者， 第 一处理器 71可以当信号质量门限为参考信号接收功率门限， 信号质量信息为参考信号 接收功率时， 根据所述参考信号接收功率门限、 所述参考信号接收功率、 参考信号的发 送功率和之前采用的发送功率确定所述第二小区的功率调整值信息。
发送器 72可以通过 X2接口、 S1接口、 Uu接口或者 OSS将第二小区的功率调整 值信息发送给第二基站。
本实施例中， 功率调整值信息可以包括以下任一项：
功率调整的目标值或指示该目标值的代码； 或者，
功率调整的幅度值或指示该幅度值的代码； 或者，
功率调整的等级或指示该等级的代码。
本实施例中的无线资源可以包括几乎空白子帧、 载波和波束中的任意一种。
上述第一基站可以实现动态调整无线资源的发送功率，进而可以实现减少对相邻小 区的干扰， 同时降低对无线资源的浪费。
图 8为本发明的一个实施例提供的基站（以下称为第二基站）示意图， 本实施例中 的第二基站可以实现上述实施例提供的功率调整方法中第二基站执行的动作。如图 8所 示， 该第二基站可以包括：
接收器 81， 用于获取第二小区的无线资源的信号质量信息；
第二处理器 82，用于根据第二小区的无线资源的信号质量信息确定第二小区的功率 调整值信息， 并根据该功率调整值信息调整第二小区的无线资源的发送功率； 其中， 第 一基站控制的第一小区和第二基站控制的第二小区为相邻小区。 可选的， 第一小区为微 小区时， 第一基站可称为微小区所属基站， 第二小区为宏小区时， 可称为微小区的相邻 宏小区， 第二基站可称为宏小区所属基站， 但本发明各实施例并不仅限于此。
具体地， 第二处理器 82可以根据第二小区的无线资源的信号质量信息、 信号质量 门限、用户设备的接收信号总功率和第二基站到达用户设备的路径损耗确定第二小区的 功率调整值信息， 上述用户设备的服务小区为第一小区； 或者， 第二处理器 82可以根 据第二小区的无线资源的信号质量信息、 信号质量门限、 第一基站接收的下行总功率和 第二基站到达用户设备的路径损耗确定第二小区的功率调整值信息，上述用户设备的服 务小区为第一小区。
本实施例中，第二基站到达用户设备的路径损耗是第一基站根据第二基站的发送功 率信息与第二小区的无线资源的接收功率确定的， 其中， 第二基站的发送功率信息是第 二基站通过 X2接口、 S1接口、 Uu接口或者 OSS发送给第一基站的； 或者， 第二基站 到达用户设备的路径损耗是第二基站根据第二基站的发送功率信息与第二小区的无线 资源的接收功率确定的， 第二小区的无线资源的接收功率是第一基站通过 X2接口、 S1 接口、 Uu接口或者 OSS发送给第二基站的。
本实施例中， 第二小区的无线资源的信号质量信息可以包括： 第二小区的无线资源 的接收功率或第二小区的无线资源的信号质量的测量值。
具体地，第二小区的无线资源的信号质量信息可以是第一基站通过对第二小区进行 测量获得的测量之后， 发送给第二基站的测量结果； 或者， 第二小区的无线资源的信号 质量信息是用户设备根据第一基站的指示对第二小区进行测量之后，通过第一基站发送 给第二基站的测量结果， 该用户设备的服务小区为第一小区。
上述信号质量门限可以为参考信号接收功率门限， 或者参考信号接收质量门限， 或 者信号功率与干扰加噪声功率比门限。
本实施例中， 第二处理器 82可以根据信号质量门限， 以及第二小区的无线资源的 信号质量信息与第一小区的信号质量的比值确定第二小区的功率调整值信息； 或者， 第 二处理器 82可以当信号质量门限为参考信号接收功率门限， 信号质量信息为参考信号 接收功率时， 根据所述参考信号接收功率门限、 所述参考信号接收功率、 参考信号的发 送功率和之前采用的发送功率确定所述第二小区的功率调整值信息。
本实施例中， 接收器 81可以接收第一基站通过 X2接口、 S1接口、 Uu接口或者 OSS发送的所述第一小区的信号质量。
本实施例中的功率调整值信息可以包括以下任一项：
功率调整的目标值或指示该目标值的代码； 或者，
功率调整的幅度值或指示该幅度值的代码； 或者，
功率调整的等级或指示该等级的代码。
本实施例中的无线资源可以包括几乎空白子帧、 载波和波束中的任意一种。 上述第二基站可以实现动态调整无线资源的发送功率，进而可以实现减少对相邻小 区的干扰， 同时降低对无线资源的浪费。
本领域技术人员可以理解附图只是一个优选实施例的示意图， 附图中的模块或流程 并不一定是实施本发明所必须的。
本领域技术人员可以理解实施例中的装置中的模块可以按照实施例描述进行分布 于实施例的装置中， 也可以进行相应变化位于不同于本实施例的一个或多个装置中。 上 述实施例的模块可以合并为一个模块， 也可以进一步拆分成多个子模块。 最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对其限制； 尽管 参照前述实施例对本发明进行了详细的说明， 本领域的普通技术人员应当理解： 其依然 可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替 换； 而这些修改或者替换， 并不使相应技术方案的本质脱离本发明各实施例技术方案的 范围。

Claims

权利要求
1、 一种功率调整方法， 其特征在于， 包括：
第一基站根据信号质量门限和第二小区的无线资源的信号质量信息确定所述第二 小区的功率调整值信息；
所述第一基站将所述第二小区的功率调整值信息发送给第二基站， 以使所述第二基 站根据所述功率调整值信息调整所述第二小区的无线资源的发送功率；
其中， 所述第二小区为第一小区的相邻小区， 所述第一小区受所述第一基站控制， 所述第二小区受所述第二基站控制。
2、 根据权利要求 1所述的方法， 其特征在于， 所述第一基站根据信号质量门限和 第二小区的无线资源的信号质量信息确定所述第二小区的功率调整值信息包括：
所述第一基站根据所述第二小区的无线资源的信号质量信息、所述第一小区的信号 质量门限、用户设备的接收信号总功率和所述第二基站到达所述用户设备的路径损耗确 定所述第二小区的功率调整值信息， 所述用户设备的服务小区为所述第一小区； 或者， 所述第一基站根据所述第二小区的无线资源的信号质量信息、 信号质量门限、 所述 第一基站接收的下行总功率和所述第二基站到达所述用户设备的路径损耗确定所述第 二小区的功率调整值信息， 所述用户设备的服务小区为所述第一小区。
3、 根据权利要求 2所述的方法， 其特征在于，
所述第二基站到达所述用户设备的路径损耗是所述第一基站根据所述第二基站的 发送功率信息与所述第二小区的无线资源的接收功率确定的， 其中， 所述第二基站的发 送功率信息是所述第二基站通过 X2接口、 S1接口、 Uu接口或者操作支持子系统发送 给所述第一基站的； 或者，
所述第二基站到达所述用户设备的路径损耗是所述第二基站根据所述第二基站的 发送功率信息与所述第二小区的无线资源的接收功率确定的，所述第二小区的无线资源 的接收功率是所述第一基站通过 X2接口、 S1接口、 Uu接口或者操作支持子系统发送 给所述第二基站的。
4、 根据权利要求 1至 3任意一项所述的方法， 其特征在于， 所述第二小区的无线 资源的信号质量信息包括：所述第二小区的无线资源的接收功率或第二小区的无线资源 的信号质量的测量值。
5、 根据权利要求 4所述的方法， 其特征在于，
所述第二小区的无线资源的信号质量信息是所述第一基站通过对所述第二小区进 行测量获得的测量结果； 或者，
所述第二小区的无线资源的信号质量信息是用户设备根据所述第一基站的指示对 所述第二小区进行测量之后， 发送给所述第一基站的测量结果， 所述用户设备的服务小 区为所述第一小区。
6、 根据权利要求 4所述的方法， 其特征在于， 所述信号质量门限为接收功率门限， 或者参考信号接收质量门限， 或者信号功率与干扰加噪声功率比门限。
7、 根据权利要求 1所述的方法， 其特征在于， 所述第一基站根据信号质量门限和 第二小区的无线资源的信号质量信息确定所述第二小区的功率调整值信息包括：
所述第一基站根据信号质量门限， 以及所述第二小区的无线资源的信号质量信息与 所述第一小区的信号质量的比值确定所述第二小区的功率调整值信息； 或者，
当信号质量门限为参考信号接收功率门限，所述信号质量信息为参考信号接收功率 时， 所述第一基站根据所述参考信号接收功率门限、 所述参考信号接收功率、 参考信号 的发送功率和之前采用的发送功率确定所述第二小区的功率调整值信息。
8、 根据权利要求 1或 2所述的方法， 其特征在于，
所述第二小区的功率调整值信息是所述第一基站通过 X2接口、 S1接口、 Uu接口 或者操作支持子系统发送给所述第二基站的。
9、 根据权利要求 8所述的方法， 其特征在于， 所述功率调整值信息包括以下任一 项：
功率调整的目标值或指示该目标值的代码； 或者，
功率调整的幅度值或指示该幅度值的代码； 或者，
功率调整的等级或指示该等级的代码。
10、 根据权利要求 1至 9任一项所述的方法， 其特征在于， 所述无线资源包括几乎 空白子帧、 载波和波束中的任意一种。
11、 一种功率调整方法， 其特征在于， 包括：
第二基站获取第二小区的无线资源的信号质量信息；
所述第二基站根据所述第二小区的无线资源的信号质量信息确定所述第二小区的 功率调整值信息， 并根据所述功率调整值信息调整所述第二小区的无线资源的发送功 率；
其中， 所述第二小区为第一小区的相邻小区， 所述第一小区受第一基站控制， 所述 第二小区受所述第二基站控制。
12、 根据权利要求 11所述的方法， 其特征在于， 所述第二基站根据所述第二小区 的无线资源的信号质量信息确定所述第二小区的功率调整值信息包括：
所述第二基站根据所述第二小区的无线资源的信号质量信息、 信号质量门限、 用户 设备的接收信号总功率和所述第二基站到达所述用户设备的路径损耗确定所述第二小 区的功率调整值信息， 所述用户设备的服务小区为所述第一小区； 或者，
所述第二基站根据所述第二小区的无线资源的信号质量信息、 信号质量门限、 所述 第一基站接收的下行总功率和所述第二基站到达所述用户设备的路径损耗确定所述第 二小区的功率调整值信息， 所述用户设备的服务小区为所述第一小区。
13、 根据权利要求 12所述的方法， 其特征在于，
所述第二基站到达所述用户设备的路径损耗是所述第一基站根据所述第二基站的 发送功率信息与所述第二小区的无线资源的接收功率确定的， 其中， 所述第二基站的发 送功率信息是所述第二基站通过 X2接口、 S1接口、 Uu接口或者操作支持子系统发送 给所述第一基站的； 或者，
所述第二基站到达所述用户设备的路径损耗是所述第二基站根据所述第二基站的 发送功率信息与所述第二小区的无线资源的接收功率确定的，所述第二小区的无线资源 的接收功率是所述第一基站通过 X2接口、 S1接口、 Uu接口或者操作支持子系统发送 给所述第二基站的。
14、 根据权利要求 11至 13任意一项所述的方法， 其特征在于， 所述第二小区的无 线资源的信号质量信息包括：所述第二小区的无线资源的接收功率或所述第二小区的无 线资源的信号质量的测量值。
15、 根据权利要求 14所述的方法， 其特征在于，
所述第二小区的无线资源的信号质量信息是所述第一基站对所述第二小区测量后， 发送给所述第二基站的测量结果； 或者，
所述第二小区的无线资源的信号质量信息是所述用户设备根据所述第一基站的指 示对所述第二小区进行测量之后， 通过所述第一基站发送给所述第二基站的测量结果， 所述用户设备的服务小区为所述第一小区。
16、 根据权利要求 14所述的方法， 其特征在于， 所述信号质量门限为接收功率门 限， 或者参考信号接收质量门限， 或者信号功率与干扰加噪声功率比门限。
17、 根据权利要求 11所述的方法， 其特征在于， 所述第二基站根据所述第二小区 的无线资源的信号质量信息确定所述第二小区的功率调整值信息包括： 所述第二基站根据信号质量门限， 以及所述第二小区的无线资源的信号质量信息与 所述第一小区的信号质量的比值确定所述第二小区的功率调整值信息； 或者，
当信号质量门限为参考信号接收功率门限， 信号质量信息为参考信号接收功率时， 所述第二基站根据所述参考信号接收功率门限、 所述参考信号接收功率、 参考信号的发 送功率和之前采用的发送功率确定所述第二小区的功率调整值信息。
18、 根据权利要求 17所述的方法， 其特征在于， 所述第一小区的信号质量是所述 第一基站通过 X2接口、 S1接口、 Uu接口或者操作支持子系统发送给所述第二基站的。
19、 根据权利要求 11至 18任一项所述的方法， 其特征在于， 所述功率调整值信息 包括以下任一项：
功率调整的目标值或指示该目标值的代码； 或者，
功率调整的幅度值或指示该幅度值的代码； 或者，
功率调整的等级或指示该等级的代码。
20、 根据权利要求 11至 19任一项所述的方法， 其特征在于， 所述无线资源包括几 乎空白子帧、 载波和波束中的任意一种。
21、 一种基站， 其特征在于， 包括：
第一处理器，用于根据信号质量门限和第二小区的无线资源的信号质量信息确定所 述第二小区的功率调整值信息；
发送器，用于将所述第一处理器确定的所述第二小区的功率调整值信息发送给第二 基站， 以使所述第二基站根据所述功率调整值信息调整所述第二小区的无线资源的发送 功率； 其中， 所述第二小区为第一小区的相邻小区， 所述第一小区受第一基站控制， 所 述第二小区受所述第二基站控制。
22、 根据权利要求 21所述的基站， 其特征在于，
所述第一处理器， 具体用于根据所述第二小区的无线资源的信号质量信息、 信号质 量门限、用户设备的接收信号总功率和所述第二基站到达所述用户设备的路径损耗确定 所述第二小区的功率调整值信息， 所述用户设备的服务小区为所述第一小区； 或者， 所 述第一处理器，具体用于根据所述第二小区的无线资源的信号质量信息、信号质量门限、 所述第一基站接收的下行总功率和所述第二基站到达所述用户设备的路径损耗确定所 述第二小区的功率调整值信息， 所述用户设备的服务小区为所述第一小区。
23、 根据权利要求 21所述的基站， 其特征在于，
所述第一处理器， 具体用于根据信号质量门限， 以及所述第二小区的无线资源的信 号质量信息与所述第一小区的信号质量的比值确定所述第二小区的功率调整值信息； 或 者， 所述第一处理器， 具体用于当信号质量门限为参考信号接收功率门限， 所述信号质 量信息为参考信号接收功率时， 根据所述参考信号接收功率门限、 所述参考信号接收功 率、 参考信号的发送功率和之前采用的发送功率确定所述第二小区的功率调整值信息。
24、 根据权利要求 21或 22所述的基站， 其特征在于，
所述发送器， 具体用于通过 X2接口、 S1接口、 Uu接口或者操作支持子系统将所 述第二小区的功率调整值信息发送给所述第二基站。
25、 一种基站， 其特征在于， 包括：
接收器， 用于获取第二小区的无线资源的信号质量信息；
第二处理器，用于根据所述第二小区的无线资源的信号质量信息确定所述第二小区 的功率调整值信息， 并根据所述功率调整值信息调整所述第二小区的无线资源的发送功 率； 其中， 所述第二小区为第一小区的相邻小区， 所述第一小区受第一基站控制， 所述 第二小区受第二基站控制。
26、 根据权利要求 25所述的基站， 其特征在于，
所述第二处理器， 具体用于根据所述第二小区的无线资源的信号质量信息、 信号质 量门限、用户设备的接收信号总功率和所述第二基站到达所述用户设备的路径损耗确定 所述第二小区的功率调整值信息， 所述用户设备的服务小区为所述第一小区； 或者， 所 述第二处理器，具体用于根据所述第二小区的无线资源的信号质量信息、信号质量门限、 所述第一基站接收的下行总功率和所述第二基站到达所述用户设备的路径损耗确定所 述第二小区的功率调整值信息， 所述用户设备的服务小区为所述第一小区。
27、 根据权利要求 25所述的基站， 其特征在于，
所述第二处理器， 具体用于根据信号质量门限， 以及所述第二小区的无线资源的信 号质量信息与所述第一小区的信号质量的比值确定所述第二小区的功率调整值信息； 或 者， 所述第二处理器， 具体用于当信号质量门限为参考信号接收功率门限， 信号质量信 息为参考信号接收功率时， 根据所述参考信号接收功率门限、 所述参考信号接收功率、 参考信号的发送功率和之前采用的发送功率确定所述第二小区的功率调整值信息。
28、 根据权利要求 27所述的基站， 其特征在于，
所述接收器， 具体用于接收所述第一基站通过 X2接口、 S1接口、 Uu接口或者操作 支持子系统发送的所述第一小区的信号质量。
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